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authorPatrick McHardy <kaber@trash.net>2009-06-11 16:00:49 +0200
committerPatrick McHardy <kaber@trash.net>2009-06-11 16:00:49 +0200
commit36432dae73cf2c90a59b39c8df9fd8219272b005 (patch)
tree660b9104305a809ec4fdeb295ca13d6e90790ecc /net
parent440f0d588555892601cfe511728a0fc0c8204063 (diff)
parentbb400801c2f40bbd9a688818323ad09abfc4e581 (diff)
downloadlinux-2.6.34-ux500-36432dae73cf2c90a59b39c8df9fd8219272b005.tar.gz
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
Diffstat (limited to 'net')
-rw-r--r--net/8021q/vlan.c6
-rw-r--r--net/8021q/vlan_dev.c10
-rw-r--r--net/Kconfig1
-rw-r--r--net/Makefile1
-rw-r--r--net/appletalk/ddp.c31
-rw-r--r--net/atm/br2684.c28
-rw-r--r--net/atm/clip.c42
-rw-r--r--net/bluetooth/cmtp/capi.c2
-rw-r--r--net/bluetooth/hci_core.c41
-rw-r--r--net/bluetooth/hci_sysfs.c6
-rw-r--r--net/bluetooth/l2cap.c117
-rw-r--r--net/bluetooth/rfcomm/core.c12
-rw-r--r--net/bridge/br_fdb.c2
-rw-r--r--net/bridge/br_netfilter.c33
-rw-r--r--net/can/af_can.c2
-rw-r--r--net/core/datagram.c181
-rw-r--r--net/core/dev.c230
-rw-r--r--net/core/iovec.c4
-rw-r--r--net/core/neighbour.c57
-rw-r--r--net/core/pktgen.c6
-rw-r--r--net/core/skb_dma_map.c13
-rw-r--r--net/core/skbuff.c241
-rw-r--r--net/core/sock.c135
-rw-r--r--net/core/user_dma.c46
-rw-r--r--net/dccp/ipv4.c10
-rw-r--r--net/dccp/ipv6.c8
-rw-r--r--net/dccp/output.c2
-rw-r--r--net/decnet/af_decnet.c25
-rw-r--r--net/decnet/dn_neigh.c8
-rw-r--r--net/decnet/dn_nsp_out.c14
-rw-r--r--net/decnet/dn_route.c25
-rw-r--r--net/dsa/slave.c10
-rw-r--r--net/econet/af_econet.c18
-rw-r--r--net/ieee802154/Kconfig12
-rw-r--r--net/ieee802154/Makefile5
-rw-r--r--net/ieee802154/af802154.h36
-rw-r--r--net/ieee802154/af_ieee802154.c372
-rw-r--r--net/ieee802154/dgram.c394
-rw-r--r--net/ieee802154/netlink.c523
-rw-r--r--net/ieee802154/nl_policy.c52
-rw-r--r--net/ieee802154/raw.c254
-rw-r--r--net/ipv4/af_inet.c2
-rw-r--r--net/ipv4/arp.c6
-rw-r--r--net/ipv4/icmp.c20
-rw-r--r--net/ipv4/igmp.c8
-rw-r--r--net/ipv4/ip_forward.c6
-rw-r--r--net/ipv4/ip_fragment.c6
-rw-r--r--net/ipv4/ip_gre.c28
-rw-r--r--net/ipv4/ip_input.c8
-rw-r--r--net/ipv4/ip_options.c18
-rw-r--r--net/ipv4/ip_output.c37
-rw-r--r--net/ipv4/ip_sockglue.c86
-rw-r--r--net/ipv4/ipip.c16
-rw-r--r--net/ipv4/ipmr.c19
-rw-r--r--net/ipv4/netfilter.c28
-rw-r--r--net/ipv4/netfilter/ipt_MASQUERADE.c2
-rw-r--r--net/ipv4/netfilter/ipt_REJECT.c7
-rw-r--r--net/ipv4/netfilter/nf_nat_helper.c4
-rw-r--r--net/ipv4/netfilter/nf_nat_proto_sctp.c5
-rw-r--r--net/ipv4/netfilter/nf_nat_standalone.c7
-rw-r--r--net/ipv4/raw.c2
-rw-r--r--net/ipv4/route.c43
-rw-r--r--net/ipv4/tcp.c17
-rw-r--r--net/ipv4/tcp_input.c98
-rw-r--r--net/ipv4/tcp_ipv4.c8
-rw-r--r--net/ipv4/tcp_output.c2
-rw-r--r--net/ipv4/tcp_vegas.c11
-rw-r--r--net/ipv4/udp.c4
-rw-r--r--net/ipv4/xfrm4_input.c2
-rw-r--r--net/ipv4/xfrm4_mode_tunnel.c4
-rw-r--r--net/ipv4/xfrm4_output.c6
-rw-r--r--net/ipv6/addrconf.c83
-rw-r--r--net/ipv6/af_inet6.c22
-rw-r--r--net/ipv6/exthdrs.c40
-rw-r--r--net/ipv6/inet6_connection_sock.c2
-rw-r--r--net/ipv6/ip6_input.c12
-rw-r--r--net/ipv6/ip6_output.c67
-rw-r--r--net/ipv6/ip6_tunnel.c26
-rw-r--r--net/ipv6/ip6mr.c13
-rw-r--r--net/ipv6/mcast.c17
-rw-r--r--net/ipv6/ndisc.c12
-rw-r--r--net/ipv6/netfilter.c16
-rw-r--r--net/ipv6/netfilter/ip6t_REJECT.c2
-rw-r--r--net/ipv6/netfilter/nf_conntrack_reasm.c4
-rw-r--r--net/ipv6/raw.c2
-rw-r--r--net/ipv6/reassembly.c26
-rw-r--r--net/ipv6/route.c12
-rw-r--r--net/ipv6/sit.c21
-rw-r--r--net/ipv6/tcp_ipv6.c8
-rw-r--r--net/ipv6/udp.c7
-rw-r--r--net/ipv6/xfrm6_mode_tunnel.c4
-rw-r--r--net/ipv6/xfrm6_output.c4
-rw-r--r--net/irda/irlap_frame.c18
-rw-r--r--net/llc/llc_conn.c4
-rw-r--r--net/mac80211/Kconfig5
-rw-r--r--net/mac80211/agg-tx.c6
-rw-r--r--net/mac80211/cfg.c69
-rw-r--r--net/mac80211/driver-ops.h7
-rw-r--r--net/mac80211/ieee80211_i.h5
-rw-r--r--net/mac80211/iface.c4
-rw-r--r--net/mac80211/main.c81
-rw-r--r--net/mac80211/mlme.c57
-rw-r--r--net/mac80211/rc80211_minstrel.c2
-rw-r--r--net/mac80211/rx.c27
-rw-r--r--net/mac80211/sta_info.c9
-rw-r--r--net/mac80211/tx.c21
-rw-r--r--net/mac80211/util.c56
-rw-r--r--net/mac80211/wext.c80
-rw-r--r--net/mac80211/wme.c2
-rw-r--r--net/netfilter/ipvs/ip_vs_xmit.c48
-rw-r--r--net/netfilter/nf_conntrack_netbios_ns.c2
-rw-r--r--net/netfilter/nf_conntrack_proto_dccp.c4
-rw-r--r--net/netfilter/nf_conntrack_proto_gre.c2
-rw-r--r--net/netfilter/nf_conntrack_proto_tcp.c18
-rw-r--r--net/netfilter/nfnetlink_log.c6
-rw-r--r--net/netfilter/nfnetlink_queue.c4
-rw-r--r--net/netfilter/xt_TCPMSS.c6
-rw-r--r--net/netfilter/xt_hashlimit.c2
-rw-r--r--net/netfilter/xt_policy.c2
-rw-r--r--net/netfilter/xt_realm.c2
-rw-r--r--net/packet/af_packet.c10
-rw-r--r--net/phonet/pep-gprs.c9
-rw-r--r--net/phonet/pep.c4
-rw-r--r--net/rfkill/Kconfig21
-rw-r--r--net/rfkill/Makefile5
-rw-r--r--net/rfkill/core.c1205
-rw-r--r--net/rfkill/input.c342
-rw-r--r--net/rfkill/rfkill-input.c390
-rw-r--r--net/rfkill/rfkill.c855
-rw-r--r--net/rfkill/rfkill.h (renamed from net/rfkill/rfkill-input.h)10
-rw-r--r--net/sched/cls_api.c23
-rw-r--r--net/sched/cls_cgroup.c22
-rw-r--r--net/sched/cls_flow.c8
-rw-r--r--net/sched/cls_route.c2
-rw-r--r--net/sched/em_meta.c8
-rw-r--r--net/sched/sch_hfsc.c8
-rw-r--r--net/sched/sch_sfq.c2
-rw-r--r--net/sched/sch_teql.c6
-rw-r--r--net/sctp/associola.c64
-rw-r--r--net/sctp/input.c4
-rw-r--r--net/sctp/output.c6
-rw-r--r--net/sctp/protocol.c10
-rw-r--r--net/sctp/sm_make_chunk.c16
-rw-r--r--net/sctp/sm_sideeffect.c8
-rw-r--r--net/sctp/sm_statefuns.c14
-rw-r--r--net/sctp/sm_statetable.c2
-rw-r--r--net/sctp/socket.c48
-rw-r--r--net/sctp/sysctl.c6
-rw-r--r--net/sctp/ulpevent.c7
-rw-r--r--net/sunrpc/auth_gss/auth_gss.c1
-rw-r--r--net/sunrpc/xprtsock.c2
-rw-r--r--net/wimax/Kconfig15
-rw-r--r--net/wimax/Makefile1
-rw-r--r--net/wimax/debug-levels.h1
-rw-r--r--net/wimax/debugfs.c1
-rw-r--r--net/wimax/op-msg.c17
-rw-r--r--net/wimax/op-rfkill.c123
-rw-r--r--net/wimax/op-state-get.c86
-rw-r--r--net/wimax/stack.c5
-rw-r--r--net/wireless/Kconfig3
-rw-r--r--net/wireless/core.c108
-rw-r--r--net/wireless/core.h7
-rw-r--r--net/wireless/nl80211.c57
-rw-r--r--net/wireless/reg.c15
-rw-r--r--net/wireless/scan.c3
-rw-r--r--net/wireless/util.c13
-rw-r--r--net/wireless/wext-compat.c83
-rw-r--r--net/xfrm/xfrm_algo.c41
-rw-r--r--net/xfrm/xfrm_input.c3
-rw-r--r--net/xfrm/xfrm_output.c21
-rw-r--r--net/xfrm/xfrm_policy.c8
171 files changed, 5357 insertions, 2846 deletions
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index d1e10546eb8..fe649081fbd 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -378,13 +378,13 @@ static void vlan_sync_address(struct net_device *dev,
* the new address */
if (compare_ether_addr(vlandev->dev_addr, vlan->real_dev_addr) &&
!compare_ether_addr(vlandev->dev_addr, dev->dev_addr))
- dev_unicast_delete(dev, vlandev->dev_addr, ETH_ALEN);
+ dev_unicast_delete(dev, vlandev->dev_addr);
/* vlan address was equal to the old address and is different from
* the new address */
if (!compare_ether_addr(vlandev->dev_addr, vlan->real_dev_addr) &&
compare_ether_addr(vlandev->dev_addr, dev->dev_addr))
- dev_unicast_add(dev, vlandev->dev_addr, ETH_ALEN);
+ dev_unicast_add(dev, vlandev->dev_addr);
memcpy(vlan->real_dev_addr, dev->dev_addr, ETH_ALEN);
}
@@ -758,7 +758,7 @@ static void __exit vlan_cleanup_module(void)
BUG_ON(!hlist_empty(&vlan_group_hash[i]));
unregister_pernet_gen_device(vlan_net_id, &vlan_net_ops);
- synchronize_net();
+ rcu_barrier(); /* Wait for completion of call_rcu()'s */
vlan_gvrp_uninit();
}
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 1e2ad4c7c59..96bad8f233e 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -441,7 +441,7 @@ static int vlan_dev_open(struct net_device *dev)
return -ENETDOWN;
if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr)) {
- err = dev_unicast_add(real_dev, dev->dev_addr, ETH_ALEN);
+ err = dev_unicast_add(real_dev, dev->dev_addr);
if (err < 0)
goto out;
}
@@ -470,7 +470,7 @@ clear_allmulti:
dev_set_allmulti(real_dev, -1);
del_unicast:
if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
- dev_unicast_delete(real_dev, dev->dev_addr, ETH_ALEN);
+ dev_unicast_delete(real_dev, dev->dev_addr);
out:
netif_carrier_off(dev);
return err;
@@ -492,7 +492,7 @@ static int vlan_dev_stop(struct net_device *dev)
dev_set_promiscuity(real_dev, -1);
if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
- dev_unicast_delete(real_dev, dev->dev_addr, dev->addr_len);
+ dev_unicast_delete(real_dev, dev->dev_addr);
netif_carrier_off(dev);
return 0;
@@ -511,13 +511,13 @@ static int vlan_dev_set_mac_address(struct net_device *dev, void *p)
goto out;
if (compare_ether_addr(addr->sa_data, real_dev->dev_addr)) {
- err = dev_unicast_add(real_dev, addr->sa_data, ETH_ALEN);
+ err = dev_unicast_add(real_dev, addr->sa_data);
if (err < 0)
return err;
}
if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
- dev_unicast_delete(real_dev, dev->dev_addr, ETH_ALEN);
+ dev_unicast_delete(real_dev, dev->dev_addr);
out:
memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
diff --git a/net/Kconfig b/net/Kconfig
index c19f549c8e7..7051b971067 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -179,6 +179,7 @@ source "net/lapb/Kconfig"
source "net/econet/Kconfig"
source "net/wanrouter/Kconfig"
source "net/phonet/Kconfig"
+source "net/ieee802154/Kconfig"
source "net/sched/Kconfig"
source "net/dcb/Kconfig"
diff --git a/net/Makefile b/net/Makefile
index 9e00a55a901..ba324aefda7 100644
--- a/net/Makefile
+++ b/net/Makefile
@@ -60,6 +60,7 @@ obj-$(CONFIG_NET_9P) += 9p/
ifneq ($(CONFIG_DCB),)
obj-y += dcb/
endif
+obj-y += ieee802154/
ifeq ($(CONFIG_NET),y)
obj-$(CONFIG_SYSCTL) += sysctl_net.o
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index d6a9243641a..b603cbacdc5 100644
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -939,6 +939,7 @@ static unsigned long atalk_sum_skb(const struct sk_buff *skb, int offset,
int len, unsigned long sum)
{
int start = skb_headlen(skb);
+ struct sk_buff *frag_iter;
int i, copy;
/* checksum stuff in header space */
@@ -977,26 +978,22 @@ static unsigned long atalk_sum_skb(const struct sk_buff *skb, int offset,
start = end;
}
- if (skb_shinfo(skb)->frag_list) {
- struct sk_buff *list = skb_shinfo(skb)->frag_list;
-
- for (; list; list = list->next) {
- int end;
+ skb_walk_frags(skb, frag_iter) {
+ int end;
- WARN_ON(start > offset + len);
+ WARN_ON(start > offset + len);
- end = start + list->len;
- if ((copy = end - offset) > 0) {
- if (copy > len)
- copy = len;
- sum = atalk_sum_skb(list, offset - start,
- copy, sum);
- if ((len -= copy) == 0)
- return sum;
- offset += copy;
- }
- start = end;
+ end = start + frag_iter->len;
+ if ((copy = end - offset) > 0) {
+ if (copy > len)
+ copy = len;
+ sum = atalk_sum_skb(frag_iter, offset - start,
+ copy, sum);
+ if ((len -= copy) == 0)
+ return sum;
+ offset += copy;
}
+ start = end;
}
BUG_ON(len > 0);
diff --git a/net/atm/br2684.c b/net/atm/br2684.c
index 3100a8940af..2912665fc58 100644
--- a/net/atm/br2684.c
+++ b/net/atm/br2684.c
@@ -228,7 +228,7 @@ static int br2684_start_xmit(struct sk_buff *skb, struct net_device *dev)
struct br2684_dev *brdev = BRPRIV(dev);
struct br2684_vcc *brvcc;
- pr_debug("br2684_start_xmit, skb->dst=%p\n", skb->dst);
+ pr_debug("br2684_start_xmit, skb_dst(skb)=%p\n", skb_dst(skb));
read_lock(&devs_lock);
brvcc = pick_outgoing_vcc(skb, brdev);
if (brvcc == NULL) {
@@ -445,9 +445,10 @@ free_skb:
*/
static int br2684_regvcc(struct atm_vcc *atmvcc, void __user * arg)
{
+ struct sk_buff_head queue;
int err;
struct br2684_vcc *brvcc;
- struct sk_buff *skb;
+ struct sk_buff *skb, *tmp;
struct sk_buff_head *rq;
struct br2684_dev *brdev;
struct net_device *net_dev;
@@ -505,29 +506,20 @@ static int br2684_regvcc(struct atm_vcc *atmvcc, void __user * arg)
barrier();
atmvcc->push = br2684_push;
+ __skb_queue_head_init(&queue);
rq = &sk_atm(atmvcc)->sk_receive_queue;
spin_lock_irqsave(&rq->lock, flags);
- if (skb_queue_empty(rq)) {
- skb = NULL;
- } else {
- /* NULL terminate the list. */
- rq->prev->next = NULL;
- skb = rq->next;
- }
- rq->prev = rq->next = (struct sk_buff *)rq;
- rq->qlen = 0;
+ skb_queue_splice_init(rq, &queue);
spin_unlock_irqrestore(&rq->lock, flags);
- while (skb) {
- struct sk_buff *next = skb->next;
+ skb_queue_walk_safe(&queue, skb, tmp) {
+ struct net_device *dev = skb->dev;
- skb->next = skb->prev = NULL;
- br2684_push(atmvcc, skb);
- skb->dev->stats.rx_bytes -= skb->len;
- skb->dev->stats.rx_packets--;
+ dev->stats.rx_bytes -= skb->len;
+ dev->stats.rx_packets--;
- skb = next;
+ br2684_push(atmvcc, skb);
}
__module_get(THIS_MODULE);
return 0;
diff --git a/net/atm/clip.c b/net/atm/clip.c
index 3dc0a3a42a5..e65a3b1477f 100644
--- a/net/atm/clip.c
+++ b/net/atm/clip.c
@@ -369,16 +369,16 @@ static int clip_start_xmit(struct sk_buff *skb, struct net_device *dev)
unsigned long flags;
pr_debug("clip_start_xmit (skb %p)\n", skb);
- if (!skb->dst) {
- printk(KERN_ERR "clip_start_xmit: skb->dst == NULL\n");
+ if (!skb_dst(skb)) {
+ printk(KERN_ERR "clip_start_xmit: skb_dst(skb) == NULL\n");
dev_kfree_skb(skb);
dev->stats.tx_dropped++;
return 0;
}
- if (!skb->dst->neighbour) {
+ if (!skb_dst(skb)->neighbour) {
#if 0
- skb->dst->neighbour = clip_find_neighbour(skb->dst, 1);
- if (!skb->dst->neighbour) {
+ skb_dst(skb)->neighbour = clip_find_neighbour(skb_dst(skb), 1);
+ if (!skb_dst(skb)->neighbour) {
dev_kfree_skb(skb); /* lost that one */
dev->stats.tx_dropped++;
return 0;
@@ -389,7 +389,7 @@ static int clip_start_xmit(struct sk_buff *skb, struct net_device *dev)
dev->stats.tx_dropped++;
return 0;
}
- entry = NEIGH2ENTRY(skb->dst->neighbour);
+ entry = NEIGH2ENTRY(skb_dst(skb)->neighbour);
if (!entry->vccs) {
if (time_after(jiffies, entry->expires)) {
/* should be resolved */
@@ -406,7 +406,7 @@ static int clip_start_xmit(struct sk_buff *skb, struct net_device *dev)
}
pr_debug("neigh %p, vccs %p\n", entry, entry->vccs);
ATM_SKB(skb)->vcc = vcc = entry->vccs->vcc;
- pr_debug("using neighbour %p, vcc %p\n", skb->dst->neighbour, vcc);
+ pr_debug("using neighbour %p, vcc %p\n", skb_dst(skb)->neighbour, vcc);
if (entry->vccs->encap) {
void *here;
@@ -445,9 +445,9 @@ static int clip_start_xmit(struct sk_buff *skb, struct net_device *dev)
static int clip_mkip(struct atm_vcc *vcc, int timeout)
{
+ struct sk_buff_head *rq, queue;
struct clip_vcc *clip_vcc;
- struct sk_buff *skb;
- struct sk_buff_head *rq;
+ struct sk_buff *skb, *tmp;
unsigned long flags;
if (!vcc->push)
@@ -469,39 +469,28 @@ static int clip_mkip(struct atm_vcc *vcc, int timeout)
vcc->push = clip_push;
vcc->pop = clip_pop;
+ __skb_queue_head_init(&queue);
rq = &sk_atm(vcc)->sk_receive_queue;
spin_lock_irqsave(&rq->lock, flags);
- if (skb_queue_empty(rq)) {
- skb = NULL;
- } else {
- /* NULL terminate the list. */
- rq->prev->next = NULL;
- skb = rq->next;
- }
- rq->prev = rq->next = (struct sk_buff *)rq;
- rq->qlen = 0;
+ skb_queue_splice_init(rq, &queue);
spin_unlock_irqrestore(&rq->lock, flags);
/* re-process everything received between connection setup and MKIP */
- while (skb) {
- struct sk_buff *next = skb->next;
-
- skb->next = skb->prev = NULL;
+ skb_queue_walk_safe(&queue, skb, tmp) {
if (!clip_devs) {
atm_return(vcc, skb->truesize);
kfree_skb(skb);
} else {
+ struct net_device *dev = skb->dev;
unsigned int len = skb->len;
skb_get(skb);
clip_push(vcc, skb);
- skb->dev->stats.rx_packets--;
- skb->dev->stats.rx_bytes -= len;
+ dev->stats.rx_packets--;
+ dev->stats.rx_bytes -= len;
kfree_skb(skb);
}
-
- skb = next;
}
return 0;
}
@@ -568,6 +557,7 @@ static void clip_setup(struct net_device *dev)
/* without any more elaborate queuing. 100 is a reasonable */
/* compromise between decent burst-tolerance and protection */
/* against memory hogs. */
+ dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
}
static int clip_create(int number)
diff --git a/net/bluetooth/cmtp/capi.c b/net/bluetooth/cmtp/capi.c
index 78958c0f9a4..97f8d68d574 100644
--- a/net/bluetooth/cmtp/capi.c
+++ b/net/bluetooth/cmtp/capi.c
@@ -382,7 +382,7 @@ static void cmtp_reset_ctr(struct capi_ctr *ctrl)
BT_DBG("ctrl %p", ctrl);
- capi_ctr_reseted(ctrl);
+ capi_ctr_down(ctrl);
atomic_inc(&session->terminate);
cmtp_schedule(session);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index cd061510b6b..406ad07cdea 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -39,6 +39,7 @@
#include <linux/skbuff.h>
#include <linux/interrupt.h>
#include <linux/notifier.h>
+#include <linux/rfkill.h>
#include <net/sock.h>
#include <asm/system.h>
@@ -476,6 +477,11 @@ int hci_dev_open(__u16 dev)
hci_req_lock(hdev);
+ if (hdev->rfkill && rfkill_blocked(hdev->rfkill)) {
+ ret = -ERFKILL;
+ goto done;
+ }
+
if (test_bit(HCI_UP, &hdev->flags)) {
ret = -EALREADY;
goto done;
@@ -813,6 +819,24 @@ int hci_get_dev_info(void __user *arg)
/* ---- Interface to HCI drivers ---- */
+static int hci_rfkill_set_block(void *data, bool blocked)
+{
+ struct hci_dev *hdev = data;
+
+ BT_DBG("%p name %s blocked %d", hdev, hdev->name, blocked);
+
+ if (!blocked)
+ return 0;
+
+ hci_dev_do_close(hdev);
+
+ return 0;
+}
+
+static const struct rfkill_ops hci_rfkill_ops = {
+ .set_block = hci_rfkill_set_block,
+};
+
/* Alloc HCI device */
struct hci_dev *hci_alloc_dev(void)
{
@@ -844,7 +868,8 @@ int hci_register_dev(struct hci_dev *hdev)
struct list_head *head = &hci_dev_list, *p;
int i, id = 0;
- BT_DBG("%p name %s type %d owner %p", hdev, hdev->name, hdev->type, hdev->owner);
+ BT_DBG("%p name %s type %d owner %p", hdev, hdev->name,
+ hdev->type, hdev->owner);
if (!hdev->open || !hdev->close || !hdev->destruct)
return -EINVAL;
@@ -900,6 +925,15 @@ int hci_register_dev(struct hci_dev *hdev)
hci_register_sysfs(hdev);
+ hdev->rfkill = rfkill_alloc(hdev->name, &hdev->dev,
+ RFKILL_TYPE_BLUETOOTH, &hci_rfkill_ops, hdev);
+ if (hdev->rfkill) {
+ if (rfkill_register(hdev->rfkill) < 0) {
+ rfkill_destroy(hdev->rfkill);
+ hdev->rfkill = NULL;
+ }
+ }
+
hci_notify(hdev, HCI_DEV_REG);
return id;
@@ -924,6 +958,11 @@ int hci_unregister_dev(struct hci_dev *hdev)
hci_notify(hdev, HCI_DEV_UNREG);
+ if (hdev->rfkill) {
+ rfkill_unregister(hdev->rfkill);
+ rfkill_destroy(hdev->rfkill);
+ }
+
hci_unregister_sysfs(hdev);
__hci_dev_put(hdev);
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 4cc3624bd22..95f7a7a544b 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -90,9 +90,6 @@ static void add_conn(struct work_struct *work)
struct hci_conn *conn = container_of(work, struct hci_conn, work_add);
struct hci_dev *hdev = conn->hdev;
- /* ensure previous del is complete */
- flush_work(&conn->work_del);
-
dev_set_name(&conn->dev, "%s:%d", hdev->name, conn->handle);
if (device_add(&conn->dev) < 0) {
@@ -118,9 +115,6 @@ static void del_conn(struct work_struct *work)
struct hci_conn *conn = container_of(work, struct hci_conn, work_del);
struct hci_dev *hdev = conn->hdev;
- /* ensure previous add is complete */
- flush_work(&conn->work_add);
-
if (!device_is_registered(&conn->dev))
return;
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index ca4d3b40d5c..bd0a4c1bced 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -40,10 +40,10 @@
#include <linux/skbuff.h>
#include <linux/list.h>
#include <linux/device.h>
+#include <linux/uaccess.h>
#include <net/sock.h>
#include <asm/system.h>
-#include <asm/uaccess.h>
#include <asm/unaligned.h>
#include <net/bluetooth/bluetooth.h>
@@ -52,7 +52,7 @@
#define VERSION "2.13"
-static u32 l2cap_feat_mask = 0x0080;
+static u32 l2cap_feat_mask = L2CAP_FEAT_FIXED_CHAN;
static u8 l2cap_fixed_chan[8] = { 0x02, };
static const struct proto_ops l2cap_sock_ops;
@@ -134,7 +134,8 @@ static inline struct sock *l2cap_get_chan_by_scid(struct l2cap_chan_list *l, u16
struct sock *s;
read_lock(&l->lock);
s = __l2cap_get_chan_by_scid(l, cid);
- if (s) bh_lock_sock(s);
+ if (s)
+ bh_lock_sock(s);
read_unlock(&l->lock);
return s;
}
@@ -154,17 +155,18 @@ static inline struct sock *l2cap_get_chan_by_ident(struct l2cap_chan_list *l, u8
struct sock *s;
read_lock(&l->lock);
s = __l2cap_get_chan_by_ident(l, ident);
- if (s) bh_lock_sock(s);
+ if (s)
+ bh_lock_sock(s);
read_unlock(&l->lock);
return s;
}
static u16 l2cap_alloc_cid(struct l2cap_chan_list *l)
{
- u16 cid = 0x0040;
+ u16 cid = L2CAP_CID_DYN_START;
- for (; cid < 0xffff; cid++) {
- if(!__l2cap_get_chan_by_scid(l, cid))
+ for (; cid < L2CAP_CID_DYN_END; cid++) {
+ if (!__l2cap_get_chan_by_scid(l, cid))
return cid;
}
@@ -204,7 +206,8 @@ static void __l2cap_chan_add(struct l2cap_conn *conn, struct sock *sk, struct so
{
struct l2cap_chan_list *l = &conn->chan_list;
- BT_DBG("conn %p, psm 0x%2.2x, dcid 0x%4.4x", conn, l2cap_pi(sk)->psm, l2cap_pi(sk)->dcid);
+ BT_DBG("conn %p, psm 0x%2.2x, dcid 0x%4.4x", conn,
+ l2cap_pi(sk)->psm, l2cap_pi(sk)->dcid);
conn->disc_reason = 0x13;
@@ -215,13 +218,13 @@ static void __l2cap_chan_add(struct l2cap_conn *conn, struct sock *sk, struct so
l2cap_pi(sk)->scid = l2cap_alloc_cid(l);
} else if (sk->sk_type == SOCK_DGRAM) {
/* Connectionless socket */
- l2cap_pi(sk)->scid = 0x0002;
- l2cap_pi(sk)->dcid = 0x0002;
+ l2cap_pi(sk)->scid = L2CAP_CID_CONN_LESS;
+ l2cap_pi(sk)->dcid = L2CAP_CID_CONN_LESS;
l2cap_pi(sk)->omtu = L2CAP_DEFAULT_MTU;
} else {
/* Raw socket can send/recv signalling messages only */
- l2cap_pi(sk)->scid = 0x0001;
- l2cap_pi(sk)->dcid = 0x0001;
+ l2cap_pi(sk)->scid = L2CAP_CID_SIGNALING;
+ l2cap_pi(sk)->dcid = L2CAP_CID_SIGNALING;
l2cap_pi(sk)->omtu = L2CAP_DEFAULT_MTU;
}
@@ -272,7 +275,7 @@ static inline int l2cap_check_security(struct sock *sk)
if (l2cap_pi(sk)->sec_level == BT_SECURITY_HIGH)
auth_type = HCI_AT_NO_BONDING_MITM;
else
- auth_type = HCI_AT_NO_BONDING;
+ auth_type = HCI_AT_NO_BONDING;
if (l2cap_pi(sk)->sec_level == BT_SECURITY_LOW)
l2cap_pi(sk)->sec_level = BT_SECURITY_SDP;
@@ -588,7 +591,8 @@ static inline struct sock *l2cap_get_sock_by_psm(int state, __le16 psm, bdaddr_t
struct sock *s;
read_lock(&l2cap_sk_list.lock);
s = __l2cap_get_sock_by_psm(state, psm, src);
- if (s) bh_lock_sock(s);
+ if (s)
+ bh_lock_sock(s);
read_unlock(&l2cap_sk_list.lock);
return s;
}
@@ -808,7 +812,7 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
goto done;
}
- if (la.l2_psm && btohs(la.l2_psm) < 0x1001 &&
+ if (la.l2_psm && __le16_to_cpu(la.l2_psm) < 0x1001 &&
!capable(CAP_NET_BIND_SERVICE)) {
err = -EACCES;
goto done;
@@ -825,7 +829,8 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
l2cap_pi(sk)->sport = la.l2_psm;
sk->sk_state = BT_BOUND;
- if (btohs(la.l2_psm) == 0x0001 || btohs(la.l2_psm) == 0x0003)
+ if (__le16_to_cpu(la.l2_psm) == 0x0001 ||
+ __le16_to_cpu(la.l2_psm) == 0x0003)
l2cap_pi(sk)->sec_level = BT_SECURITY_SDP;
}
@@ -844,12 +849,13 @@ static int l2cap_do_connect(struct sock *sk)
struct hci_conn *hcon;
struct hci_dev *hdev;
__u8 auth_type;
- int err = 0;
+ int err;
BT_DBG("%s -> %s psm 0x%2.2x", batostr(src), batostr(dst),
l2cap_pi(sk)->psm);
- if (!(hdev = hci_get_route(dst, src)))
+ hdev = hci_get_route(dst, src);
+ if (!hdev)
return -EHOSTUNREACH;
hci_dev_lock_bh(hdev);
@@ -950,7 +956,7 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, int al
goto done;
}
- switch(sk->sk_state) {
+ switch (sk->sk_state) {
case BT_CONNECT:
case BT_CONNECT2:
case BT_CONFIG:
@@ -975,7 +981,8 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, int al
bacpy(&bt_sk(sk)->dst, &la.l2_bdaddr);
l2cap_pi(sk)->psm = la.l2_psm;
- if ((err = l2cap_do_connect(sk)))
+ err = l2cap_do_connect(sk);
+ if (err)
goto done;
wait:
@@ -1009,9 +1016,9 @@ static int l2cap_sock_listen(struct socket *sock, int backlog)
write_lock_bh(&l2cap_sk_list.lock);
for (psm = 0x1001; psm < 0x1100; psm += 2)
- if (!__l2cap_get_sock_by_addr(htobs(psm), src)) {
- l2cap_pi(sk)->psm = htobs(psm);
- l2cap_pi(sk)->sport = htobs(psm);
+ if (!__l2cap_get_sock_by_addr(cpu_to_le16(psm), src)) {
+ l2cap_pi(sk)->psm = cpu_to_le16(psm);
+ l2cap_pi(sk)->sport = cpu_to_le16(psm);
err = 0;
break;
}
@@ -1100,11 +1107,11 @@ static int l2cap_sock_getname(struct socket *sock, struct sockaddr *addr, int *l
if (peer) {
la->l2_psm = l2cap_pi(sk)->psm;
bacpy(&la->l2_bdaddr, &bt_sk(sk)->dst);
- la->l2_cid = htobs(l2cap_pi(sk)->dcid);
+ la->l2_cid = cpu_to_le16(l2cap_pi(sk)->dcid);
} else {
la->l2_psm = l2cap_pi(sk)->sport;
bacpy(&la->l2_bdaddr, &bt_sk(sk)->src);
- la->l2_cid = htobs(l2cap_pi(sk)->scid);
+ la->l2_cid = cpu_to_le16(l2cap_pi(sk)->scid);
}
return 0;
@@ -1114,7 +1121,7 @@ static inline int l2cap_do_send(struct sock *sk, struct msghdr *msg, int len)
{
struct l2cap_conn *conn = l2cap_pi(sk)->conn;
struct sk_buff *skb, **frag;
- int err, hlen, count, sent=0;
+ int err, hlen, count, sent = 0;
struct l2cap_hdr *lh;
BT_DBG("sk %p len %d", sk, len);
@@ -1167,8 +1174,8 @@ static inline int l2cap_do_send(struct sock *sk, struct msghdr *msg, int len)
frag = &(*frag)->next;
}
-
- if ((err = hci_send_acl(conn->hcon, skb, 0)) < 0)
+ err = hci_send_acl(conn->hcon, skb, 0);
+ if (err < 0)
goto fail;
return sent;
@@ -1556,7 +1563,7 @@ static void l2cap_raw_recv(struct l2cap_conn *conn, struct sk_buff *skb)
{
struct l2cap_chan_list *l = &conn->chan_list;
struct sk_buff *nskb;
- struct sock * sk;
+ struct sock *sk;
BT_DBG("conn %p", conn);
@@ -1568,8 +1575,8 @@ static void l2cap_raw_recv(struct l2cap_conn *conn, struct sk_buff *skb)
/* Don't send frame to the socket it came from */
if (skb->sk == sk)
continue;
-
- if (!(nskb = skb_clone(skb, GFP_ATOMIC)))
+ nskb = skb_clone(skb, GFP_ATOMIC);
+ if (!nskb)
continue;
if (sock_queue_rcv_skb(sk, nskb))
@@ -1587,7 +1594,8 @@ static struct sk_buff *l2cap_build_cmd(struct l2cap_conn *conn,
struct l2cap_hdr *lh;
int len, count;
- BT_DBG("conn %p, code 0x%2.2x, ident 0x%2.2x, len %d", conn, code, ident, dlen);
+ BT_DBG("conn %p, code 0x%2.2x, ident 0x%2.2x, len %d",
+ conn, code, ident, dlen);
len = L2CAP_HDR_SIZE + L2CAP_CMD_HDR_SIZE + dlen;
count = min_t(unsigned int, conn->mtu, len);
@@ -1598,7 +1606,7 @@ static struct sk_buff *l2cap_build_cmd(struct l2cap_conn *conn,
lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
lh->len = cpu_to_le16(L2CAP_CMD_HDR_SIZE + dlen);
- lh->cid = cpu_to_le16(0x0001);
+ lh->cid = cpu_to_le16(L2CAP_CID_SIGNALING);
cmd = (struct l2cap_cmd_hdr *) skb_put(skb, L2CAP_CMD_HDR_SIZE);
cmd->code = code;
@@ -1739,8 +1747,8 @@ static int l2cap_parse_conf_req(struct sock *sk, void *data)
while (len >= L2CAP_CONF_OPT_SIZE) {
len -= l2cap_get_conf_opt(&req, &type, &olen, &val);
- hint = type & 0x80;
- type &= 0x7f;
+ hint = type & L2CAP_CONF_HINT;
+ type &= L2CAP_CONF_MASK;
switch (type) {
case L2CAP_CONF_MTU:
@@ -1966,10 +1974,12 @@ static inline int l2cap_connect_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hd
BT_DBG("dcid 0x%4.4x scid 0x%4.4x result 0x%2.2x status 0x%2.2x", dcid, scid, result, status);
if (scid) {
- if (!(sk = l2cap_get_chan_by_scid(&conn->chan_list, scid)))
+ sk = l2cap_get_chan_by_scid(&conn->chan_list, scid);
+ if (!sk)
return 0;
} else {
- if (!(sk = l2cap_get_chan_by_ident(&conn->chan_list, cmd->ident)))
+ sk = l2cap_get_chan_by_ident(&conn->chan_list, cmd->ident);
+ if (!sk)
return 0;
}
@@ -2012,7 +2022,8 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
BT_DBG("dcid 0x%4.4x flags 0x%2.2x", dcid, flags);
- if (!(sk = l2cap_get_chan_by_scid(&conn->chan_list, dcid)))
+ sk = l2cap_get_chan_by_scid(&conn->chan_list, dcid);
+ if (!sk)
return -ENOENT;
if (sk->sk_state == BT_DISCONN)
@@ -2079,9 +2090,11 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
flags = __le16_to_cpu(rsp->flags);
result = __le16_to_cpu(rsp->result);
- BT_DBG("scid 0x%4.4x flags 0x%2.2x result 0x%2.2x", scid, flags, result);
+ BT_DBG("scid 0x%4.4x flags 0x%2.2x result 0x%2.2x",
+ scid, flags, result);
- if (!(sk = l2cap_get_chan_by_scid(&conn->chan_list, scid)))
+ sk = l2cap_get_chan_by_scid(&conn->chan_list, scid);
+ if (!sk)
return 0;
switch (result) {
@@ -2142,7 +2155,8 @@ static inline int l2cap_disconnect_req(struct l2cap_conn *conn, struct l2cap_cmd
BT_DBG("scid 0x%4.4x dcid 0x%4.4x", scid, dcid);
- if (!(sk = l2cap_get_chan_by_scid(&conn->chan_list, dcid)))
+ sk = l2cap_get_chan_by_scid(&conn->chan_list, dcid);
+ if (!sk)
return 0;
rsp.dcid = cpu_to_le16(l2cap_pi(sk)->scid);
@@ -2169,7 +2183,8 @@ static inline int l2cap_disconnect_rsp(struct l2cap_conn *conn, struct l2cap_cmd
BT_DBG("dcid 0x%4.4x scid 0x%4.4x", dcid, scid);
- if (!(sk = l2cap_get_chan_by_scid(&conn->chan_list, scid)))
+ sk = l2cap_get_chan_by_scid(&conn->chan_list, scid);
+ if (!sk)
return 0;
l2cap_chan_del(sk, 0);
@@ -2230,7 +2245,7 @@ static inline int l2cap_information_rsp(struct l2cap_conn *conn, struct l2cap_cm
if (type == L2CAP_IT_FEAT_MASK) {
conn->feat_mask = get_unaligned_le32(rsp->data);
- if (conn->feat_mask & 0x0080) {
+ if (conn->feat_mask & L2CAP_FEAT_FIXED_CHAN) {
struct l2cap_info_req req;
req.type = cpu_to_le16(L2CAP_IT_FIXED_CHAN);
@@ -2403,7 +2418,8 @@ drop:
kfree_skb(skb);
done:
- if (sk) bh_unlock_sock(sk);
+ if (sk)
+ bh_unlock_sock(sk);
return 0;
}
@@ -2420,11 +2436,11 @@ static void l2cap_recv_frame(struct l2cap_conn *conn, struct sk_buff *skb)
BT_DBG("len %d, cid 0x%4.4x", len, cid);
switch (cid) {
- case 0x0001:
+ case L2CAP_CID_SIGNALING:
l2cap_sig_channel(conn, skb);
break;
- case 0x0002:
+ case L2CAP_CID_CONN_LESS:
psm = get_unaligned((__le16 *) skb->data);
skb_pull(skb, 2);
l2cap_conless_channel(conn, psm, skb);
@@ -2650,7 +2666,8 @@ static int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 fl
}
/* Allocate skb for the complete frame (with header) */
- if (!(conn->rx_skb = bt_skb_alloc(len, GFP_ATOMIC)))
+ conn->rx_skb = bt_skb_alloc(len, GFP_ATOMIC);
+ if (!conn->rx_skb)
goto drop;
skb_copy_from_linear_data(skb, skb_put(conn->rx_skb, skb->len),
@@ -2704,13 +2721,13 @@ static ssize_t l2cap_sysfs_show(struct class *dev, char *buf)
str += sprintf(str, "%s %s %d %d 0x%4.4x 0x%4.4x %d %d %d\n",
batostr(&bt_sk(sk)->src), batostr(&bt_sk(sk)->dst),
- sk->sk_state, btohs(pi->psm), pi->scid, pi->dcid,
- pi->imtu, pi->omtu, pi->sec_level);
+ sk->sk_state, __le16_to_cpu(pi->psm), pi->scid,
+ pi->dcid, pi->imtu, pi->omtu, pi->sec_level);
}
read_unlock_bh(&l2cap_sk_list.lock);
- return (str - buf);
+ return str - buf;
}
static CLASS_ATTR(l2cap, S_IRUGO, l2cap_sysfs_show, NULL);
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index 374536e050a..e50566ebf9f 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -679,7 +679,7 @@ static struct rfcomm_session *rfcomm_session_create(bdaddr_t *src, bdaddr_t *dst
bacpy(&addr.l2_bdaddr, dst);
addr.l2_family = AF_BLUETOOTH;
- addr.l2_psm = htobs(RFCOMM_PSM);
+ addr.l2_psm = cpu_to_le16(RFCOMM_PSM);
addr.l2_cid = 0;
*err = kernel_connect(sock, (struct sockaddr *) &addr, sizeof(addr), O_NONBLOCK);
if (*err == 0 || *err == -EINPROGRESS)
@@ -852,9 +852,9 @@ static int rfcomm_send_pn(struct rfcomm_session *s, int cr, struct rfcomm_dlc *d
}
if (cr && channel_mtu >= 0)
- pn->mtu = htobs(channel_mtu);
+ pn->mtu = cpu_to_le16(channel_mtu);
else
- pn->mtu = htobs(d->mtu);
+ pn->mtu = cpu_to_le16(d->mtu);
*ptr = __fcs(buf); ptr++;
@@ -1056,7 +1056,7 @@ static void rfcomm_make_uih(struct sk_buff *skb, u8 addr)
if (len > 127) {
hdr = (void *) skb_push(skb, 4);
- put_unaligned(htobs(__len16(len)), (__le16 *) &hdr->len);
+ put_unaligned(cpu_to_le16(__len16(len)), (__le16 *) &hdr->len);
} else {
hdr = (void *) skb_push(skb, 3);
hdr->len = __len8(len);
@@ -1289,7 +1289,7 @@ static int rfcomm_apply_pn(struct rfcomm_dlc *d, int cr, struct rfcomm_pn *pn)
d->priority = pn->priority;
- d->mtu = btohs(pn->mtu);
+ d->mtu = __le16_to_cpu(pn->mtu);
if (cr && d->mtu > s->mtu)
d->mtu = s->mtu;
@@ -1922,7 +1922,7 @@ static int rfcomm_add_listener(bdaddr_t *ba)
/* Bind socket */
bacpy(&addr.l2_bdaddr, ba);
addr.l2_family = AF_BLUETOOTH;
- addr.l2_psm = htobs(RFCOMM_PSM);
+ addr.l2_psm = cpu_to_le16(RFCOMM_PSM);
addr.l2_cid = 0;
err = kernel_bind(sock, (struct sockaddr *) &addr, sizeof(addr));
if (err < 0) {
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index a48f5efdb6b..cb3e97b93ae 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -398,7 +398,7 @@ void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source,
if (unlikely(fdb->is_local)) {
if (net_ratelimit())
printk(KERN_WARNING "%s: received packet with "
- " own address as source address\n",
+ "own address as source address\n",
source->dev->name);
} else {
/* fastpath: update of existing entry */
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index e4a418fcb35..d22f611e400 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -228,6 +228,7 @@ int nf_bridge_copy_header(struct sk_buff *skb)
static int br_nf_pre_routing_finish_ipv6(struct sk_buff *skb)
{
struct nf_bridge_info *nf_bridge = skb->nf_bridge;
+ struct rtable *rt;
if (nf_bridge->mask & BRNF_PKT_TYPE) {
skb->pkt_type = PACKET_OTHERHOST;
@@ -235,12 +236,13 @@ static int br_nf_pre_routing_finish_ipv6(struct sk_buff *skb)
}
nf_bridge->mask ^= BRNF_NF_BRIDGE_PREROUTING;
- skb->rtable = bridge_parent_rtable(nf_bridge->physindev);
- if (!skb->rtable) {
+ rt = bridge_parent_rtable(nf_bridge->physindev);
+ if (!rt) {
kfree_skb(skb);
return 0;
}
- dst_hold(&skb->rtable->u.dst);
+ dst_hold(&rt->u.dst);
+ skb_dst_set(skb, &rt->u.dst);
skb->dev = nf_bridge->physindev;
nf_bridge_push_encap_header(skb);
@@ -320,7 +322,7 @@ static int br_nf_pre_routing_finish_bridge(struct sk_buff *skb)
skb->dev = bridge_parent(skb->dev);
if (skb->dev) {
- struct dst_entry *dst = skb->dst;
+ struct dst_entry *dst = skb_dst(skb);
nf_bridge_pull_encap_header(skb);
@@ -338,6 +340,7 @@ static int br_nf_pre_routing_finish(struct sk_buff *skb)
struct net_device *dev = skb->dev;
struct iphdr *iph = ip_hdr(skb);
struct nf_bridge_info *nf_bridge = skb->nf_bridge;
+ struct rtable *rt;
int err;
if (nf_bridge->mask & BRNF_PKT_TYPE) {
@@ -347,7 +350,6 @@ static int br_nf_pre_routing_finish(struct sk_buff *skb)
nf_bridge->mask ^= BRNF_NF_BRIDGE_PREROUTING;
if (dnat_took_place(skb)) {
if ((err = ip_route_input(skb, iph->daddr, iph->saddr, iph->tos, dev))) {
- struct rtable *rt;
struct flowi fl = {
.nl_u = {
.ip4_u = {
@@ -373,7 +375,7 @@ static int br_nf_pre_routing_finish(struct sk_buff *skb)
/* - Bridged-and-DNAT'ed traffic doesn't
* require ip_forwarding. */
if (((struct dst_entry *)rt)->dev == dev) {
- skb->dst = (struct dst_entry *)rt;
+ skb_dst_set(skb, (struct dst_entry *)rt);
goto bridged_dnat;
}
/* we are sure that forwarding is disabled, so printing
@@ -387,7 +389,7 @@ free_skb:
kfree_skb(skb);
return 0;
} else {
- if (skb->dst->dev == dev) {
+ if (skb_dst(skb)->dev == dev) {
bridged_dnat:
/* Tell br_nf_local_out this is a
* bridged frame */
@@ -404,12 +406,13 @@ bridged_dnat:
skb->pkt_type = PACKET_HOST;
}
} else {
- skb->rtable = bridge_parent_rtable(nf_bridge->physindev);
- if (!skb->rtable) {
+ rt = bridge_parent_rtable(nf_bridge->physindev);
+ if (!rt) {
kfree_skb(skb);
return 0;
}
- dst_hold(&skb->rtable->u.dst);
+ dst_hold(&rt->u.dst);
+ skb_dst_set(skb, &rt->u.dst);
}
skb->dev = nf_bridge->physindev;
@@ -628,10 +631,10 @@ static unsigned int br_nf_local_in(unsigned int hook, struct sk_buff *skb,
const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
- if (skb->rtable && skb->rtable == bridge_parent_rtable(in)) {
- dst_release(&skb->rtable->u.dst);
- skb->rtable = NULL;
- }
+ struct rtable *rt = skb_rtable(skb);
+
+ if (rt && rt == bridge_parent_rtable(in))
+ skb_dst_drop(skb);
return NF_ACCEPT;
}
@@ -846,7 +849,7 @@ static unsigned int br_nf_post_routing(unsigned int hook, struct sk_buff *skb,
return NF_ACCEPT;
#ifdef CONFIG_NETFILTER_DEBUG
- if (skb->dst == NULL) {
+ if (skb_dst(skb) == NULL) {
printk(KERN_INFO "br_netfilter post_routing: skb->dst == NULL\n");
goto print_error;
}
diff --git a/net/can/af_can.c b/net/can/af_can.c
index 10f0528c3bf..e733725b11d 100644
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -903,6 +903,8 @@ static __exit void can_exit(void)
}
spin_unlock(&can_rcvlists_lock);
+ rcu_barrier(); /* Wait for completion of call_rcu()'s */
+
kmem_cache_destroy(rcv_cache);
}
diff --git a/net/core/datagram.c b/net/core/datagram.c
index e2a36f05cdf..58abee1f1df 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -282,6 +282,7 @@ int skb_copy_datagram_iovec(const struct sk_buff *skb, int offset,
{
int start = skb_headlen(skb);
int i, copy = start - offset;
+ struct sk_buff *frag_iter;
/* Copy header. */
if (copy > 0) {
@@ -322,28 +323,24 @@ int skb_copy_datagram_iovec(const struct sk_buff *skb, int offset,
start = end;
}
- if (skb_shinfo(skb)->frag_list) {
- struct sk_buff *list = skb_shinfo(skb)->frag_list;
-
- for (; list; list = list->next) {
- int end;
-
- WARN_ON(start > offset + len);
-
- end = start + list->len;
- if ((copy = end - offset) > 0) {
- if (copy > len)
- copy = len;
- if (skb_copy_datagram_iovec(list,
- offset - start,
- to, copy))
- goto fault;
- if ((len -= copy) == 0)
- return 0;
- offset += copy;
- }
- start = end;
+ skb_walk_frags(skb, frag_iter) {
+ int end;
+
+ WARN_ON(start > offset + len);
+
+ end = start + frag_iter->len;
+ if ((copy = end - offset) > 0) {
+ if (copy > len)
+ copy = len;
+ if (skb_copy_datagram_iovec(frag_iter,
+ offset - start,
+ to, copy))
+ goto fault;
+ if ((len -= copy) == 0)
+ return 0;
+ offset += copy;
}
+ start = end;
}
if (!len)
return 0;
@@ -369,6 +366,7 @@ int skb_copy_datagram_const_iovec(const struct sk_buff *skb, int offset,
{
int start = skb_headlen(skb);
int i, copy = start - offset;
+ struct sk_buff *frag_iter;
/* Copy header. */
if (copy > 0) {
@@ -411,30 +409,26 @@ int skb_copy_datagram_const_iovec(const struct sk_buff *skb, int offset,
start = end;
}
- if (skb_shinfo(skb)->frag_list) {
- struct sk_buff *list = skb_shinfo(skb)->frag_list;
-
- for (; list; list = list->next) {
- int end;
-
- WARN_ON(start > offset + len);
-
- end = start + list->len;
- if ((copy = end - offset) > 0) {
- if (copy > len)
- copy = len;
- if (skb_copy_datagram_const_iovec(list,
- offset - start,
- to, to_offset,
- copy))
- goto fault;
- if ((len -= copy) == 0)
- return 0;
- offset += copy;
- to_offset += copy;
- }
- start = end;
+ skb_walk_frags(skb, frag_iter) {
+ int end;
+
+ WARN_ON(start > offset + len);
+
+ end = start + frag_iter->len;
+ if ((copy = end - offset) > 0) {
+ if (copy > len)
+ copy = len;
+ if (skb_copy_datagram_const_iovec(frag_iter,
+ offset - start,
+ to, to_offset,
+ copy))
+ goto fault;
+ if ((len -= copy) == 0)
+ return 0;
+ offset += copy;
+ to_offset += copy;
}
+ start = end;
}
if (!len)
return 0;
@@ -461,12 +455,14 @@ int skb_copy_datagram_from_iovec(struct sk_buff *skb, int offset,
{
int start = skb_headlen(skb);
int i, copy = start - offset;
+ struct sk_buff *frag_iter;
/* Copy header. */
if (copy > 0) {
if (copy > len)
copy = len;
- if (memcpy_fromiovecend(skb->data + offset, from, 0, copy))
+ if (memcpy_fromiovecend(skb->data + offset, from, from_offset,
+ copy))
goto fault;
if ((len -= copy) == 0)
return 0;
@@ -505,31 +501,27 @@ int skb_copy_datagram_from_iovec(struct sk_buff *skb, int offset,
start = end;
}
- if (skb_shinfo(skb)->frag_list) {
- struct sk_buff *list = skb_shinfo(skb)->frag_list;
-
- for (; list; list = list->next) {
- int end;
-
- WARN_ON(start > offset + len);
-
- end = start + list->len;
- if ((copy = end - offset) > 0) {
- if (copy > len)
- copy = len;
- if (skb_copy_datagram_from_iovec(list,
- offset - start,
- from,
- from_offset,
- copy))
- goto fault;
- if ((len -= copy) == 0)
- return 0;
- offset += copy;
- from_offset += copy;
- }
- start = end;
+ skb_walk_frags(skb, frag_iter) {
+ int end;
+
+ WARN_ON(start > offset + len);
+
+ end = start + frag_iter->len;
+ if ((copy = end - offset) > 0) {
+ if (copy > len)
+ copy = len;
+ if (skb_copy_datagram_from_iovec(frag_iter,
+ offset - start,
+ from,
+ from_offset,
+ copy))
+ goto fault;
+ if ((len -= copy) == 0)
+ return 0;
+ offset += copy;
+ from_offset += copy;
}
+ start = end;
}
if (!len)
return 0;
@@ -544,8 +536,9 @@ static int skb_copy_and_csum_datagram(const struct sk_buff *skb, int offset,
__wsum *csump)
{
int start = skb_headlen(skb);
- int pos = 0;
int i, copy = start - offset;
+ struct sk_buff *frag_iter;
+ int pos = 0;
/* Copy header. */
if (copy > 0) {
@@ -596,33 +589,29 @@ static int skb_copy_and_csum_datagram(const struct sk_buff *skb, int offset,
start = end;
}
- if (skb_shinfo(skb)->frag_list) {
- struct sk_buff *list = skb_shinfo(skb)->frag_list;
-
- for (; list; list=list->next) {
- int end;
-
- WARN_ON(start > offset + len);
-
- end = start + list->len;
- if ((copy = end - offset) > 0) {
- __wsum csum2 = 0;
- if (copy > len)
- copy = len;
- if (skb_copy_and_csum_datagram(list,
- offset - start,
- to, copy,
- &csum2))
- goto fault;
- *csump = csum_block_add(*csump, csum2, pos);
- if ((len -= copy) == 0)
- return 0;
- offset += copy;
- to += copy;
- pos += copy;
- }
- start = end;
+ skb_walk_frags(skb, frag_iter) {
+ int end;
+
+ WARN_ON(start > offset + len);
+
+ end = start + frag_iter->len;
+ if ((copy = end - offset) > 0) {
+ __wsum csum2 = 0;
+ if (copy > len)
+ copy = len;
+ if (skb_copy_and_csum_datagram(frag_iter,
+ offset - start,
+ to, copy,
+ &csum2))
+ goto fault;
+ *csump = csum_block_add(*csump, csum2, pos);
+ if ((len -= copy) == 0)
+ return 0;
+ offset += copy;
+ to += copy;
+ pos += copy;
}
+ start = end;
}
if (!len)
return 0;
diff --git a/net/core/dev.c b/net/core/dev.c
index ed4550fd9ec..11560e3258b 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -269,7 +269,8 @@ static const unsigned short netdev_lock_type[] =
ARPHRD_IRDA, ARPHRD_FCPP, ARPHRD_FCAL, ARPHRD_FCPL,
ARPHRD_FCFABRIC, ARPHRD_IEEE802_TR, ARPHRD_IEEE80211,
ARPHRD_IEEE80211_PRISM, ARPHRD_IEEE80211_RADIOTAP, ARPHRD_PHONET,
- ARPHRD_PHONET_PIPE, ARPHRD_VOID, ARPHRD_NONE};
+ ARPHRD_PHONET_PIPE, ARPHRD_IEEE802154, ARPHRD_IEEE802154_PHY,
+ ARPHRD_VOID, ARPHRD_NONE};
static const char *netdev_lock_name[] =
{"_xmit_NETROM", "_xmit_ETHER", "_xmit_EETHER", "_xmit_AX25",
@@ -286,7 +287,8 @@ static const char *netdev_lock_name[] =
"_xmit_IRDA", "_xmit_FCPP", "_xmit_FCAL", "_xmit_FCPL",
"_xmit_FCFABRIC", "_xmit_IEEE802_TR", "_xmit_IEEE80211",
"_xmit_IEEE80211_PRISM", "_xmit_IEEE80211_RADIOTAP", "_xmit_PHONET",
- "_xmit_PHONET_PIPE", "_xmit_VOID", "_xmit_NONE"};
+ "_xmit_PHONET_PIPE", "_xmit_IEEE802154", "_xmit_IEEE802154_PHY",
+ "_xmit_VOID", "_xmit_NONE"};
static struct lock_class_key netdev_xmit_lock_key[ARRAY_SIZE(netdev_lock_type)];
static struct lock_class_key netdev_addr_lock_key[ARRAY_SIZE(netdev_lock_type)];
@@ -1048,7 +1050,7 @@ void dev_load(struct net *net, const char *name)
int dev_open(struct net_device *dev)
{
const struct net_device_ops *ops = dev->netdev_ops;
- int ret = 0;
+ int ret;
ASSERT_RTNL();
@@ -1065,6 +1067,11 @@ int dev_open(struct net_device *dev)
if (!netif_device_present(dev))
return -ENODEV;
+ ret = call_netdevice_notifiers(NETDEV_PRE_UP, dev);
+ ret = notifier_to_errno(ret);
+ if (ret)
+ return ret;
+
/*
* Call device private open method
*/
@@ -1693,10 +1700,9 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
* If device doesnt need skb->dst, release it right now while
* its hot in this cpu cache
*/
- if ((dev->priv_flags & IFF_XMIT_DST_RELEASE) && skb->dst) {
- dst_release(skb->dst);
- skb->dst = NULL;
- }
+ if (dev->priv_flags & IFF_XMIT_DST_RELEASE)
+ skb_dst_drop(skb);
+
rc = ops->ndo_start_xmit(skb, dev);
if (rc == 0)
txq_trans_update(txq);
@@ -1816,7 +1822,7 @@ int dev_queue_xmit(struct sk_buff *skb)
if (netif_needs_gso(dev, skb))
goto gso;
- if (skb_shinfo(skb)->frag_list &&
+ if (skb_has_frags(skb) &&
!(dev->features & NETIF_F_FRAGLIST) &&
__skb_linearize(skb))
goto out_kfree_skb;
@@ -2403,7 +2409,7 @@ int dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
if (!(skb->dev->features & NETIF_F_GRO))
goto normal;
- if (skb_is_gso(skb) || skb_shinfo(skb)->frag_list)
+ if (skb_is_gso(skb) || skb_has_frags(skb))
goto normal;
rcu_read_lock();
@@ -3473,8 +3479,9 @@ void dev_set_rx_mode(struct net_device *dev)
/* hw addresses list handling functions */
-static int __hw_addr_add(struct list_head *list, unsigned char *addr,
- int addr_len, unsigned char addr_type)
+static int __hw_addr_add(struct list_head *list, int *delta,
+ unsigned char *addr, int addr_len,
+ unsigned char addr_type)
{
struct netdev_hw_addr *ha;
int alloc_size;
@@ -3482,6 +3489,15 @@ static int __hw_addr_add(struct list_head *list, unsigned char *addr,
if (addr_len > MAX_ADDR_LEN)
return -EINVAL;
+ list_for_each_entry(ha, list, list) {
+ if (!memcmp(ha->addr, addr, addr_len) &&
+ ha->type == addr_type) {
+ ha->refcount++;
+ return 0;
+ }
+ }
+
+
alloc_size = sizeof(*ha);
if (alloc_size < L1_CACHE_BYTES)
alloc_size = L1_CACHE_BYTES;
@@ -3490,7 +3506,11 @@ static int __hw_addr_add(struct list_head *list, unsigned char *addr,
return -ENOMEM;
memcpy(ha->addr, addr, addr_len);
ha->type = addr_type;
+ ha->refcount = 1;
+ ha->synced = false;
list_add_tail_rcu(&ha->list, list);
+ if (delta)
+ (*delta)++;
return 0;
}
@@ -3502,29 +3522,30 @@ static void ha_rcu_free(struct rcu_head *head)
kfree(ha);
}
-static int __hw_addr_del_ii(struct list_head *list, unsigned char *addr,
- int addr_len, unsigned char addr_type,
- int ignore_index)
+static int __hw_addr_del(struct list_head *list, int *delta,
+ unsigned char *addr, int addr_len,
+ unsigned char addr_type)
{
struct netdev_hw_addr *ha;
- int i = 0;
list_for_each_entry(ha, list, list) {
- if (i++ != ignore_index &&
- !memcmp(ha->addr, addr, addr_len) &&
+ if (!memcmp(ha->addr, addr, addr_len) &&
(ha->type == addr_type || !addr_type)) {
+ if (--ha->refcount)
+ return 0;
list_del_rcu(&ha->list);
call_rcu(&ha->rcu_head, ha_rcu_free);
+ if (delta)
+ (*delta)--;
return 0;
}
}
return -ENOENT;
}
-static int __hw_addr_add_multiple_ii(struct list_head *to_list,
- struct list_head *from_list,
- int addr_len, unsigned char addr_type,
- int ignore_index)
+static int __hw_addr_add_multiple(struct list_head *to_list, int *to_delta,
+ struct list_head *from_list, int addr_len,
+ unsigned char addr_type)
{
int err;
struct netdev_hw_addr *ha, *ha2;
@@ -3532,7 +3553,8 @@ static int __hw_addr_add_multiple_ii(struct list_head *to_list,
list_for_each_entry(ha, from_list, list) {
type = addr_type ? addr_type : ha->type;
- err = __hw_addr_add(to_list, ha->addr, addr_len, type);
+ err = __hw_addr_add(to_list, to_delta, ha->addr,
+ addr_len, type);
if (err)
goto unroll;
}
@@ -3543,27 +3565,69 @@ unroll:
if (ha2 == ha)
break;
type = addr_type ? addr_type : ha2->type;
- __hw_addr_del_ii(to_list, ha2->addr, addr_len, type,
- ignore_index);
+ __hw_addr_del(to_list, to_delta, ha2->addr,
+ addr_len, type);
}
return err;
}
-static void __hw_addr_del_multiple_ii(struct list_head *to_list,
- struct list_head *from_list,
- int addr_len, unsigned char addr_type,
- int ignore_index)
+static void __hw_addr_del_multiple(struct list_head *to_list, int *to_delta,
+ struct list_head *from_list, int addr_len,
+ unsigned char addr_type)
{
struct netdev_hw_addr *ha;
unsigned char type;
list_for_each_entry(ha, from_list, list) {
type = addr_type ? addr_type : ha->type;
- __hw_addr_del_ii(to_list, ha->addr, addr_len, addr_type,
- ignore_index);
+ __hw_addr_del(to_list, to_delta, ha->addr,
+ addr_len, addr_type);
+ }
+}
+
+static int __hw_addr_sync(struct list_head *to_list, int *to_delta,
+ struct list_head *from_list, int *from_delta,
+ int addr_len)
+{
+ int err = 0;
+ struct netdev_hw_addr *ha, *tmp;
+
+ list_for_each_entry_safe(ha, tmp, from_list, list) {
+ if (!ha->synced) {
+ err = __hw_addr_add(to_list, to_delta, ha->addr,
+ addr_len, ha->type);
+ if (err)
+ break;
+ ha->synced = true;
+ ha->refcount++;
+ } else if (ha->refcount == 1) {
+ __hw_addr_del(to_list, to_delta, ha->addr,
+ addr_len, ha->type);
+ __hw_addr_del(from_list, from_delta, ha->addr,
+ addr_len, ha->type);
+ }
+ }
+ return err;
+}
+
+static void __hw_addr_unsync(struct list_head *to_list, int *to_delta,
+ struct list_head *from_list, int *from_delta,
+ int addr_len)
+{
+ struct netdev_hw_addr *ha, *tmp;
+
+ list_for_each_entry_safe(ha, tmp, from_list, list) {
+ if (ha->synced) {
+ __hw_addr_del(to_list, to_delta, ha->addr,
+ addr_len, ha->type);
+ ha->synced = false;
+ __hw_addr_del(from_list, from_delta, ha->addr,
+ addr_len, ha->type);
+ }
}
}
+
static void __hw_addr_flush(struct list_head *list)
{
struct netdev_hw_addr *ha, *tmp;
@@ -3593,8 +3657,8 @@ static int dev_addr_init(struct net_device *dev)
/* rtnl_mutex must be held here */
INIT_LIST_HEAD(&dev->dev_addr_list);
- memset(addr, 0, sizeof(*addr));
- err = __hw_addr_add(&dev->dev_addr_list, addr, sizeof(*addr),
+ memset(addr, 0, sizeof(addr));
+ err = __hw_addr_add(&dev->dev_addr_list, NULL, addr, sizeof(addr),
NETDEV_HW_ADDR_T_LAN);
if (!err) {
/*
@@ -3626,7 +3690,7 @@ int dev_addr_add(struct net_device *dev, unsigned char *addr,
ASSERT_RTNL();
- err = __hw_addr_add(&dev->dev_addr_list, addr, dev->addr_len,
+ err = __hw_addr_add(&dev->dev_addr_list, NULL, addr, dev->addr_len,
addr_type);
if (!err)
call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
@@ -3649,11 +3713,20 @@ int dev_addr_del(struct net_device *dev, unsigned char *addr,
unsigned char addr_type)
{
int err;
+ struct netdev_hw_addr *ha;
ASSERT_RTNL();
- err = __hw_addr_del_ii(&dev->dev_addr_list, addr, dev->addr_len,
- addr_type, 0);
+ /*
+ * We can not remove the first address from the list because
+ * dev->dev_addr points to that.
+ */
+ ha = list_first_entry(&dev->dev_addr_list, struct netdev_hw_addr, list);
+ if (ha->addr == dev->dev_addr && ha->refcount == 1)
+ return -ENOENT;
+
+ err = __hw_addr_del(&dev->dev_addr_list, NULL, addr, dev->addr_len,
+ addr_type);
if (!err)
call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
return err;
@@ -3680,9 +3753,9 @@ int dev_addr_add_multiple(struct net_device *to_dev,
if (from_dev->addr_len != to_dev->addr_len)
return -EINVAL;
- err = __hw_addr_add_multiple_ii(&to_dev->dev_addr_list,
- &from_dev->dev_addr_list,
- to_dev->addr_len, addr_type, 0);
+ err = __hw_addr_add_multiple(&to_dev->dev_addr_list, NULL,
+ &from_dev->dev_addr_list,
+ to_dev->addr_len, addr_type);
if (!err)
call_netdevice_notifiers(NETDEV_CHANGEADDR, to_dev);
return err;
@@ -3707,9 +3780,9 @@ int dev_addr_del_multiple(struct net_device *to_dev,
if (from_dev->addr_len != to_dev->addr_len)
return -EINVAL;
- __hw_addr_del_multiple_ii(&to_dev->dev_addr_list,
- &from_dev->dev_addr_list,
- to_dev->addr_len, addr_type, 0);
+ __hw_addr_del_multiple(&to_dev->dev_addr_list, NULL,
+ &from_dev->dev_addr_list,
+ to_dev->addr_len, addr_type);
call_netdevice_notifiers(NETDEV_CHANGEADDR, to_dev);
return 0;
}
@@ -3779,24 +3852,22 @@ int __dev_addr_add(struct dev_addr_list **list, int *count,
* dev_unicast_delete - Release secondary unicast address.
* @dev: device
* @addr: address to delete
- * @alen: length of @addr
*
* Release reference to a secondary unicast address and remove it
* from the device if the reference count drops to zero.
*
* The caller must hold the rtnl_mutex.
*/
-int dev_unicast_delete(struct net_device *dev, void *addr, int alen)
+int dev_unicast_delete(struct net_device *dev, void *addr)
{
int err;
ASSERT_RTNL();
- netif_addr_lock_bh(dev);
- err = __dev_addr_delete(&dev->uc_list, &dev->uc_count, addr, alen, 0);
+ err = __hw_addr_del(&dev->uc_list, &dev->uc_count, addr,
+ dev->addr_len, NETDEV_HW_ADDR_T_UNICAST);
if (!err)
__dev_set_rx_mode(dev);
- netif_addr_unlock_bh(dev);
return err;
}
EXPORT_SYMBOL(dev_unicast_delete);
@@ -3805,24 +3876,22 @@ EXPORT_SYMBOL(dev_unicast_delete);
* dev_unicast_add - add a secondary unicast address
* @dev: device
* @addr: address to add
- * @alen: length of @addr
*
* Add a secondary unicast address to the device or increase
* the reference count if it already exists.
*
* The caller must hold the rtnl_mutex.
*/
-int dev_unicast_add(struct net_device *dev, void *addr, int alen)
+int dev_unicast_add(struct net_device *dev, void *addr)
{
int err;
ASSERT_RTNL();
- netif_addr_lock_bh(dev);
- err = __dev_addr_add(&dev->uc_list, &dev->uc_count, addr, alen, 0);
+ err = __hw_addr_add(&dev->uc_list, &dev->uc_count, addr,
+ dev->addr_len, NETDEV_HW_ADDR_T_UNICAST);
if (!err)
__dev_set_rx_mode(dev);
- netif_addr_unlock_bh(dev);
return err;
}
EXPORT_SYMBOL(dev_unicast_add);
@@ -3879,8 +3948,7 @@ void __dev_addr_unsync(struct dev_addr_list **to, int *to_count,
* @from: source device
*
* Add newly added addresses to the destination device and release
- * addresses that have no users left. The source device must be
- * locked by netif_tx_lock_bh.
+ * addresses that have no users left.
*
* This function is intended to be called from the dev->set_rx_mode
* function of layered software devices.
@@ -3889,12 +3957,15 @@ int dev_unicast_sync(struct net_device *to, struct net_device *from)
{
int err = 0;
- netif_addr_lock_bh(to);
- err = __dev_addr_sync(&to->uc_list, &to->uc_count,
- &from->uc_list, &from->uc_count);
+ ASSERT_RTNL();
+
+ if (to->addr_len != from->addr_len)
+ return -EINVAL;
+
+ err = __hw_addr_sync(&to->uc_list, &to->uc_count,
+ &from->uc_list, &from->uc_count, to->addr_len);
if (!err)
__dev_set_rx_mode(to);
- netif_addr_unlock_bh(to);
return err;
}
EXPORT_SYMBOL(dev_unicast_sync);
@@ -3910,18 +3981,33 @@ EXPORT_SYMBOL(dev_unicast_sync);
*/
void dev_unicast_unsync(struct net_device *to, struct net_device *from)
{
- netif_addr_lock_bh(from);
- netif_addr_lock(to);
+ ASSERT_RTNL();
- __dev_addr_unsync(&to->uc_list, &to->uc_count,
- &from->uc_list, &from->uc_count);
- __dev_set_rx_mode(to);
+ if (to->addr_len != from->addr_len)
+ return;
- netif_addr_unlock(to);
- netif_addr_unlock_bh(from);
+ __hw_addr_unsync(&to->uc_list, &to->uc_count,
+ &from->uc_list, &from->uc_count, to->addr_len);
+ __dev_set_rx_mode(to);
}
EXPORT_SYMBOL(dev_unicast_unsync);
+static void dev_unicast_flush(struct net_device *dev)
+{
+ /* rtnl_mutex must be held here */
+
+ __hw_addr_flush(&dev->uc_list);
+ dev->uc_count = 0;
+}
+
+static void dev_unicast_init(struct net_device *dev)
+{
+ /* rtnl_mutex must be held here */
+
+ INIT_LIST_HEAD(&dev->uc_list);
+}
+
+
static void __dev_addr_discard(struct dev_addr_list **list)
{
struct dev_addr_list *tmp;
@@ -3940,9 +4026,6 @@ static void dev_addr_discard(struct net_device *dev)
{
netif_addr_lock_bh(dev);
- __dev_addr_discard(&dev->uc_list);
- dev->uc_count = 0;
-
__dev_addr_discard(&dev->mc_list);
dev->mc_count = 0;
@@ -4535,6 +4618,7 @@ static void rollback_registered(struct net_device *dev)
/*
* Flush the unicast and multicast chains
*/
+ dev_unicast_flush(dev);
dev_addr_discard(dev);
if (dev->netdev_ops->ndo_uninit)
@@ -4988,18 +5072,18 @@ struct net_device *alloc_netdev_mq(int sizeof_priv, const char *name,
struct netdev_queue *tx;
struct net_device *dev;
size_t alloc_size;
- void *p;
+ struct net_device *p;
BUG_ON(strlen(name) >= sizeof(dev->name));
alloc_size = sizeof(struct net_device);
if (sizeof_priv) {
/* ensure 32-byte alignment of private area */
- alloc_size = (alloc_size + NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST;
+ alloc_size = ALIGN(alloc_size, NETDEV_ALIGN);
alloc_size += sizeof_priv;
}
/* ensure 32-byte alignment of whole construct */
- alloc_size += NETDEV_ALIGN_CONST;
+ alloc_size += NETDEV_ALIGN - 1;
p = kzalloc(alloc_size, GFP_KERNEL);
if (!p) {
@@ -5014,13 +5098,14 @@ struct net_device *alloc_netdev_mq(int sizeof_priv, const char *name,
goto free_p;
}
- dev = (struct net_device *)
- (((long)p + NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST);
+ dev = PTR_ALIGN(p, NETDEV_ALIGN);
dev->padded = (char *)dev - (char *)p;
if (dev_addr_init(dev))
goto free_tx;
+ dev_unicast_init(dev);
+
dev_net_set(dev, &init_net);
dev->_tx = tx;
@@ -5224,6 +5309,7 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char
/*
* Flush the unicast and multicast chains
*/
+ dev_unicast_flush(dev);
dev_addr_discard(dev);
netdev_unregister_kobject(dev);
diff --git a/net/core/iovec.c b/net/core/iovec.c
index 40a76ce19d9..16ad45d4882 100644
--- a/net/core/iovec.c
+++ b/net/core/iovec.c
@@ -112,9 +112,9 @@ int memcpy_toiovecend(const struct iovec *iov, unsigned char *kdata,
continue;
}
copy = min_t(unsigned int, iov->iov_len - offset, len);
- offset = 0;
- if (copy_to_user(iov->iov_base, kdata, copy))
+ if (copy_to_user(iov->iov_base + offset, kdata, copy))
return -EFAULT;
+ offset = 0;
kdata += copy;
len -= copy;
}
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index a1cbce7fdae..163b4f5b036 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -771,6 +771,28 @@ static __inline__ int neigh_max_probes(struct neighbour *n)
p->ucast_probes + p->app_probes + p->mcast_probes);
}
+static void neigh_invalidate(struct neighbour *neigh)
+{
+ struct sk_buff *skb;
+
+ NEIGH_CACHE_STAT_INC(neigh->tbl, res_failed);
+ NEIGH_PRINTK2("neigh %p is failed.\n", neigh);
+ neigh->updated = jiffies;
+
+ /* It is very thin place. report_unreachable is very complicated
+ routine. Particularly, it can hit the same neighbour entry!
+
+ So that, we try to be accurate and avoid dead loop. --ANK
+ */
+ while (neigh->nud_state == NUD_FAILED &&
+ (skb = __skb_dequeue(&neigh->arp_queue)) != NULL) {
+ write_unlock(&neigh->lock);
+ neigh->ops->error_report(neigh, skb);
+ write_lock(&neigh->lock);
+ }
+ skb_queue_purge(&neigh->arp_queue);
+}
+
/* Called when a timer expires for a neighbour entry. */
static void neigh_timer_handler(unsigned long arg)
@@ -835,26 +857,9 @@ static void neigh_timer_handler(unsigned long arg)
if ((neigh->nud_state & (NUD_INCOMPLETE | NUD_PROBE)) &&
atomic_read(&neigh->probes) >= neigh_max_probes(neigh)) {
- struct sk_buff *skb;
-
neigh->nud_state = NUD_FAILED;
- neigh->updated = jiffies;
notify = 1;
- NEIGH_CACHE_STAT_INC(neigh->tbl, res_failed);
- NEIGH_PRINTK2("neigh %p is failed.\n", neigh);
-
- /* It is very thin place. report_unreachable is very complicated
- routine. Particularly, it can hit the same neighbour entry!
-
- So that, we try to be accurate and avoid dead loop. --ANK
- */
- while (neigh->nud_state == NUD_FAILED &&
- (skb = __skb_dequeue(&neigh->arp_queue)) != NULL) {
- write_unlock(&neigh->lock);
- neigh->ops->error_report(neigh, skb);
- write_lock(&neigh->lock);
- }
- skb_queue_purge(&neigh->arp_queue);
+ neigh_invalidate(neigh);
}
if (neigh->nud_state & NUD_IN_TIMER) {
@@ -1001,6 +1006,11 @@ int neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new,
neigh->nud_state = new;
err = 0;
notify = old & NUD_VALID;
+ if ((old & (NUD_INCOMPLETE | NUD_PROBE)) &&
+ (new & NUD_FAILED)) {
+ neigh_invalidate(neigh);
+ notify = 1;
+ }
goto out;
}
@@ -1088,8 +1098,8 @@ int neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new,
struct neighbour *n1 = neigh;
write_unlock_bh(&neigh->lock);
/* On shaper/eql skb->dst->neighbour != neigh :( */
- if (skb->dst && skb->dst->neighbour)
- n1 = skb->dst->neighbour;
+ if (skb_dst(skb) && skb_dst(skb)->neighbour)
+ n1 = skb_dst(skb)->neighbour;
n1->output(skb);
write_lock_bh(&neigh->lock);
}
@@ -1182,7 +1192,7 @@ EXPORT_SYMBOL(neigh_compat_output);
int neigh_resolve_output(struct sk_buff *skb)
{
- struct dst_entry *dst = skb->dst;
+ struct dst_entry *dst = skb_dst(skb);
struct neighbour *neigh;
int rc = 0;
@@ -1229,7 +1239,7 @@ EXPORT_SYMBOL(neigh_resolve_output);
int neigh_connected_output(struct sk_buff *skb)
{
int err;
- struct dst_entry *dst = skb->dst;
+ struct dst_entry *dst = skb_dst(skb);
struct neighbour *neigh = dst->neighbour;
struct net_device *dev = neigh->dev;
@@ -1298,8 +1308,7 @@ void pneigh_enqueue(struct neigh_table *tbl, struct neigh_parms *p,
if (time_before(tbl->proxy_timer.expires, sched_next))
sched_next = tbl->proxy_timer.expires;
}
- dst_release(skb->dst);
- skb->dst = NULL;
+ skb_dst_drop(skb);
dev_hold(skb->dev);
__skb_queue_tail(&tbl->proxy_queue, skb);
mod_timer(&tbl->proxy_timer, sched_next);
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index b8ccd3c88d6..19b8c20e98a 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -3691,8 +3691,7 @@ out1:
#ifdef CONFIG_XFRM
free_SAs(pkt_dev);
#endif
- if (pkt_dev->flows)
- vfree(pkt_dev->flows);
+ vfree(pkt_dev->flows);
kfree(pkt_dev);
return err;
}
@@ -3791,8 +3790,7 @@ static int pktgen_remove_device(struct pktgen_thread *t,
#ifdef CONFIG_XFRM
free_SAs(pkt_dev);
#endif
- if (pkt_dev->flows)
- vfree(pkt_dev->flows);
+ vfree(pkt_dev->flows);
kfree(pkt_dev);
return 0;
}
diff --git a/net/core/skb_dma_map.c b/net/core/skb_dma_map.c
index 86234923a3b..79687dfd695 100644
--- a/net/core/skb_dma_map.c
+++ b/net/core/skb_dma_map.c
@@ -20,7 +20,7 @@ int skb_dma_map(struct device *dev, struct sk_buff *skb,
if (dma_mapping_error(dev, map))
goto out_err;
- sp->dma_maps[0] = map;
+ sp->dma_head = map;
for (i = 0; i < sp->nr_frags; i++) {
skb_frag_t *fp = &sp->frags[i];
@@ -28,9 +28,8 @@ int skb_dma_map(struct device *dev, struct sk_buff *skb,
fp->size, dir);
if (dma_mapping_error(dev, map))
goto unwind;
- sp->dma_maps[i + 1] = map;
+ sp->dma_maps[i] = map;
}
- sp->num_dma_maps = i + 1;
return 0;
@@ -38,10 +37,10 @@ unwind:
while (--i >= 0) {
skb_frag_t *fp = &sp->frags[i];
- dma_unmap_page(dev, sp->dma_maps[i + 1],
+ dma_unmap_page(dev, sp->dma_maps[i],
fp->size, dir);
}
- dma_unmap_single(dev, sp->dma_maps[0],
+ dma_unmap_single(dev, sp->dma_head,
skb_headlen(skb), dir);
out_err:
return -ENOMEM;
@@ -54,12 +53,12 @@ void skb_dma_unmap(struct device *dev, struct sk_buff *skb,
struct skb_shared_info *sp = skb_shinfo(skb);
int i;
- dma_unmap_single(dev, sp->dma_maps[0],
+ dma_unmap_single(dev, sp->dma_head,
skb_headlen(skb), dir);
for (i = 0; i < sp->nr_frags; i++) {
skb_frag_t *fp = &sp->frags[i];
- dma_unmap_page(dev, sp->dma_maps[i + 1],
+ dma_unmap_page(dev, sp->dma_maps[i],
fp->size, dir);
}
}
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 8e815e685f2..b94d777e3eb 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -210,7 +210,7 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t gfp_mask,
shinfo->gso_type = 0;
shinfo->ip6_frag_id = 0;
shinfo->tx_flags.flags = 0;
- shinfo->frag_list = NULL;
+ skb_frag_list_init(skb);
memset(&shinfo->hwtstamps, 0, sizeof(shinfo->hwtstamps));
if (fclone) {
@@ -323,7 +323,7 @@ static void skb_clone_fraglist(struct sk_buff *skb)
{
struct sk_buff *list;
- for (list = skb_shinfo(skb)->frag_list; list; list = list->next)
+ skb_walk_frags(skb, list)
skb_get(list);
}
@@ -338,7 +338,7 @@ static void skb_release_data(struct sk_buff *skb)
put_page(skb_shinfo(skb)->frags[i].page);
}
- if (skb_shinfo(skb)->frag_list)
+ if (skb_has_frags(skb))
skb_drop_fraglist(skb);
kfree(skb->head);
@@ -381,7 +381,7 @@ static void kfree_skbmem(struct sk_buff *skb)
static void skb_release_head_state(struct sk_buff *skb)
{
- dst_release(skb->dst);
+ skb_dst_drop(skb);
#ifdef CONFIG_XFRM
secpath_put(skb->sp);
#endif
@@ -503,7 +503,7 @@ int skb_recycle_check(struct sk_buff *skb, int skb_size)
shinfo->gso_type = 0;
shinfo->ip6_frag_id = 0;
shinfo->tx_flags.flags = 0;
- shinfo->frag_list = NULL;
+ skb_frag_list_init(skb);
memset(&shinfo->hwtstamps, 0, sizeof(shinfo->hwtstamps));
memset(skb, 0, offsetof(struct sk_buff, tail));
@@ -521,7 +521,7 @@ static void __copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
new->transport_header = old->transport_header;
new->network_header = old->network_header;
new->mac_header = old->mac_header;
- new->dst = dst_clone(old->dst);
+ skb_dst_set(new, dst_clone(skb_dst(old)));
#ifdef CONFIG_XFRM
new->sp = secpath_get(old->sp);
#endif
@@ -552,7 +552,6 @@ static void __copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
new->vlan_tci = old->vlan_tci;
#if defined(CONFIG_MAC80211) || defined(CONFIG_MAC80211_MODULE)
new->do_not_encrypt = old->do_not_encrypt;
- new->requeue = old->requeue;
#endif
skb_copy_secmark(new, old);
@@ -758,7 +757,7 @@ struct sk_buff *pskb_copy(struct sk_buff *skb, gfp_t gfp_mask)
skb_shinfo(n)->nr_frags = i;
}
- if (skb_shinfo(skb)->frag_list) {
+ if (skb_has_frags(skb)) {
skb_shinfo(n)->frag_list = skb_shinfo(skb)->frag_list;
skb_clone_fraglist(n);
}
@@ -821,7 +820,7 @@ int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail,
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
get_page(skb_shinfo(skb)->frags[i].page);
- if (skb_shinfo(skb)->frag_list)
+ if (skb_has_frags(skb))
skb_clone_fraglist(skb);
skb_release_data(skb);
@@ -1093,7 +1092,7 @@ drop_pages:
for (; i < nfrags; i++)
put_page(skb_shinfo(skb)->frags[i].page);
- if (skb_shinfo(skb)->frag_list)
+ if (skb_has_frags(skb))
skb_drop_fraglist(skb);
goto done;
}
@@ -1188,7 +1187,7 @@ unsigned char *__pskb_pull_tail(struct sk_buff *skb, int delta)
/* Optimization: no fragments, no reasons to preestimate
* size of pulled pages. Superb.
*/
- if (!skb_shinfo(skb)->frag_list)
+ if (!skb_has_frags(skb))
goto pull_pages;
/* Estimate size of pulled pages. */
@@ -1285,8 +1284,9 @@ EXPORT_SYMBOL(__pskb_pull_tail);
int skb_copy_bits(const struct sk_buff *skb, int offset, void *to, int len)
{
- int i, copy;
int start = skb_headlen(skb);
+ struct sk_buff *frag_iter;
+ int i, copy;
if (offset > (int)skb->len - len)
goto fault;
@@ -1328,28 +1328,23 @@ int skb_copy_bits(const struct sk_buff *skb, int offset, void *to, int len)
start = end;
}
- if (skb_shinfo(skb)->frag_list) {
- struct sk_buff *list = skb_shinfo(skb)->frag_list;
+ skb_walk_frags(skb, frag_iter) {
+ int end;
- for (; list; list = list->next) {
- int end;
-
- WARN_ON(start > offset + len);
-
- end = start + list->len;
- if ((copy = end - offset) > 0) {
- if (copy > len)
- copy = len;
- if (skb_copy_bits(list, offset - start,
- to, copy))
- goto fault;
- if ((len -= copy) == 0)
- return 0;
- offset += copy;
- to += copy;
- }
- start = end;
+ WARN_ON(start > offset + len);
+
+ end = start + frag_iter->len;
+ if ((copy = end - offset) > 0) {
+ if (copy > len)
+ copy = len;
+ if (skb_copy_bits(frag_iter, offset - start, to, copy))
+ goto fault;
+ if ((len -= copy) == 0)
+ return 0;
+ offset += copy;
+ to += copy;
}
+ start = end;
}
if (!len)
return 0;
@@ -1534,6 +1529,7 @@ int skb_splice_bits(struct sk_buff *skb, unsigned int offset,
.ops = &sock_pipe_buf_ops,
.spd_release = sock_spd_release,
};
+ struct sk_buff *frag_iter;
struct sock *sk = skb->sk;
/*
@@ -1548,13 +1544,11 @@ int skb_splice_bits(struct sk_buff *skb, unsigned int offset,
/*
* now see if we have a frag_list to map
*/
- if (skb_shinfo(skb)->frag_list) {
- struct sk_buff *list = skb_shinfo(skb)->frag_list;
-
- for (; list && tlen; list = list->next) {
- if (__skb_splice_bits(list, &offset, &tlen, &spd, sk))
- break;
- }
+ skb_walk_frags(skb, frag_iter) {
+ if (!tlen)
+ break;
+ if (__skb_splice_bits(frag_iter, &offset, &tlen, &spd, sk))
+ break;
}
done:
@@ -1593,8 +1587,9 @@ done:
int skb_store_bits(struct sk_buff *skb, int offset, const void *from, int len)
{
- int i, copy;
int start = skb_headlen(skb);
+ struct sk_buff *frag_iter;
+ int i, copy;
if (offset > (int)skb->len - len)
goto fault;
@@ -1635,28 +1630,24 @@ int skb_store_bits(struct sk_buff *skb, int offset, const void *from, int len)
start = end;
}
- if (skb_shinfo(skb)->frag_list) {
- struct sk_buff *list = skb_shinfo(skb)->frag_list;
+ skb_walk_frags(skb, frag_iter) {
+ int end;
- for (; list; list = list->next) {
- int end;
-
- WARN_ON(start > offset + len);
-
- end = start + list->len;
- if ((copy = end - offset) > 0) {
- if (copy > len)
- copy = len;
- if (skb_store_bits(list, offset - start,
- from, copy))
- goto fault;
- if ((len -= copy) == 0)
- return 0;
- offset += copy;
- from += copy;
- }
- start = end;
+ WARN_ON(start > offset + len);
+
+ end = start + frag_iter->len;
+ if ((copy = end - offset) > 0) {
+ if (copy > len)
+ copy = len;
+ if (skb_store_bits(frag_iter, offset - start,
+ from, copy))
+ goto fault;
+ if ((len -= copy) == 0)
+ return 0;
+ offset += copy;
+ from += copy;
}
+ start = end;
}
if (!len)
return 0;
@@ -1673,6 +1664,7 @@ __wsum skb_checksum(const struct sk_buff *skb, int offset,
{
int start = skb_headlen(skb);
int i, copy = start - offset;
+ struct sk_buff *frag_iter;
int pos = 0;
/* Checksum header. */
@@ -1712,29 +1704,25 @@ __wsum skb_checksum(const struct sk_buff *skb, int offset,
start = end;
}
- if (skb_shinfo(skb)->frag_list) {
- struct sk_buff *list = skb_shinfo(skb)->frag_list;
+ skb_walk_frags(skb, frag_iter) {
+ int end;
- for (; list; list = list->next) {
- int end;
-
- WARN_ON(start > offset + len);
-
- end = start + list->len;
- if ((copy = end - offset) > 0) {
- __wsum csum2;
- if (copy > len)
- copy = len;
- csum2 = skb_checksum(list, offset - start,
- copy, 0);
- csum = csum_block_add(csum, csum2, pos);
- if ((len -= copy) == 0)
- return csum;
- offset += copy;
- pos += copy;
- }
- start = end;
+ WARN_ON(start > offset + len);
+
+ end = start + frag_iter->len;
+ if ((copy = end - offset) > 0) {
+ __wsum csum2;
+ if (copy > len)
+ copy = len;
+ csum2 = skb_checksum(frag_iter, offset - start,
+ copy, 0);
+ csum = csum_block_add(csum, csum2, pos);
+ if ((len -= copy) == 0)
+ return csum;
+ offset += copy;
+ pos += copy;
}
+ start = end;
}
BUG_ON(len);
@@ -1749,6 +1737,7 @@ __wsum skb_copy_and_csum_bits(const struct sk_buff *skb, int offset,
{
int start = skb_headlen(skb);
int i, copy = start - offset;
+ struct sk_buff *frag_iter;
int pos = 0;
/* Copy header. */
@@ -1793,31 +1782,27 @@ __wsum skb_copy_and_csum_bits(const struct sk_buff *skb, int offset,
start = end;
}
- if (skb_shinfo(skb)->frag_list) {
- struct sk_buff *list = skb_shinfo(skb)->frag_list;
+ skb_walk_frags(skb, frag_iter) {
+ __wsum csum2;
+ int end;
- for (; list; list = list->next) {
- __wsum csum2;
- int end;
-
- WARN_ON(start > offset + len);
-
- end = start + list->len;
- if ((copy = end - offset) > 0) {
- if (copy > len)
- copy = len;
- csum2 = skb_copy_and_csum_bits(list,
- offset - start,
- to, copy, 0);
- csum = csum_block_add(csum, csum2, pos);
- if ((len -= copy) == 0)
- return csum;
- offset += copy;
- to += copy;
- pos += copy;
- }
- start = end;
+ WARN_ON(start > offset + len);
+
+ end = start + frag_iter->len;
+ if ((copy = end - offset) > 0) {
+ if (copy > len)
+ copy = len;
+ csum2 = skb_copy_and_csum_bits(frag_iter,
+ offset - start,
+ to, copy, 0);
+ csum = csum_block_add(csum, csum2, pos);
+ if ((len -= copy) == 0)
+ return csum;
+ offset += copy;
+ to += copy;
+ pos += copy;
}
+ start = end;
}
BUG_ON(len);
return csum;
@@ -2327,8 +2312,7 @@ next_skb:
st->frag_data = NULL;
}
- if (st->root_skb == st->cur_skb &&
- skb_shinfo(st->root_skb)->frag_list) {
+ if (st->root_skb == st->cur_skb && skb_has_frags(st->root_skb)) {
st->cur_skb = skb_shinfo(st->root_skb)->frag_list;
st->frag_idx = 0;
goto next_skb;
@@ -2639,7 +2623,7 @@ struct sk_buff *skb_segment(struct sk_buff *skb, int features)
} else
skb_get(fskb2);
- BUG_ON(skb_shinfo(nskb)->frag_list);
+ SKB_FRAG_ASSERT(nskb);
skb_shinfo(nskb)->frag_list = fskb2;
}
@@ -2796,6 +2780,7 @@ __skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset, int len)
{
int start = skb_headlen(skb);
int i, copy = start - offset;
+ struct sk_buff *frag_iter;
int elt = 0;
if (copy > 0) {
@@ -2829,26 +2814,22 @@ __skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset, int len)
start = end;
}
- if (skb_shinfo(skb)->frag_list) {
- struct sk_buff *list = skb_shinfo(skb)->frag_list;
-
- for (; list; list = list->next) {
- int end;
+ skb_walk_frags(skb, frag_iter) {
+ int end;
- WARN_ON(start > offset + len);
+ WARN_ON(start > offset + len);
- end = start + list->len;
- if ((copy = end - offset) > 0) {
- if (copy > len)
- copy = len;
- elt += __skb_to_sgvec(list, sg+elt, offset - start,
- copy);
- if ((len -= copy) == 0)
- return elt;
- offset += copy;
- }
- start = end;
+ end = start + frag_iter->len;
+ if ((copy = end - offset) > 0) {
+ if (copy > len)
+ copy = len;
+ elt += __skb_to_sgvec(frag_iter, sg+elt, offset - start,
+ copy);
+ if ((len -= copy) == 0)
+ return elt;
+ offset += copy;
}
+ start = end;
}
BUG_ON(len);
return elt;
@@ -2896,7 +2877,7 @@ int skb_cow_data(struct sk_buff *skb, int tailbits, struct sk_buff **trailer)
return -ENOMEM;
/* Easy case. Most of packets will go this way. */
- if (!skb_shinfo(skb)->frag_list) {
+ if (!skb_has_frags(skb)) {
/* A little of trouble, not enough of space for trailer.
* This should not happen, when stack is tuned to generate
* good frames. OK, on miss we reallocate and reserve even more
@@ -2931,7 +2912,7 @@ int skb_cow_data(struct sk_buff *skb, int tailbits, struct sk_buff **trailer)
if (skb1->next == NULL && tailbits) {
if (skb_shinfo(skb1)->nr_frags ||
- skb_shinfo(skb1)->frag_list ||
+ skb_has_frags(skb1) ||
skb_tailroom(skb1) < tailbits)
ntail = tailbits + 128;
}
@@ -2940,7 +2921,7 @@ int skb_cow_data(struct sk_buff *skb, int tailbits, struct sk_buff **trailer)
skb_cloned(skb1) ||
ntail ||
skb_shinfo(skb1)->nr_frags ||
- skb_shinfo(skb1)->frag_list) {
+ skb_has_frags(skb1)) {
struct sk_buff *skb2;
/* Fuck, we are miserable poor guys... */
@@ -3026,12 +3007,12 @@ EXPORT_SYMBOL_GPL(skb_tstamp_tx);
*/
bool skb_partial_csum_set(struct sk_buff *skb, u16 start, u16 off)
{
- if (unlikely(start > skb->len - 2) ||
- unlikely((int)start + off > skb->len - 2)) {
+ if (unlikely(start > skb_headlen(skb)) ||
+ unlikely((int)start + off > skb_headlen(skb) - 2)) {
if (net_ratelimit())
printk(KERN_WARNING
"bad partial csum: csum=%u/%u len=%u\n",
- start, off, skb->len);
+ start, off, skb_headlen(skb));
return false;
}
skb->ip_summed = CHECKSUM_PARTIAL;
diff --git a/net/core/sock.c b/net/core/sock.c
index 7dbf3ffb35c..06e26b77ad9 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -155,6 +155,7 @@ static const char *af_family_key_strings[AF_MAX+1] = {
"sk_lock-27" , "sk_lock-28" , "sk_lock-AF_CAN" ,
"sk_lock-AF_TIPC" , "sk_lock-AF_BLUETOOTH", "sk_lock-IUCV" ,
"sk_lock-AF_RXRPC" , "sk_lock-AF_ISDN" , "sk_lock-AF_PHONET" ,
+ "sk_lock-AF_IEEE802154",
"sk_lock-AF_MAX"
};
static const char *af_family_slock_key_strings[AF_MAX+1] = {
@@ -170,6 +171,7 @@ static const char *af_family_slock_key_strings[AF_MAX+1] = {
"slock-27" , "slock-28" , "slock-AF_CAN" ,
"slock-AF_TIPC" , "slock-AF_BLUETOOTH", "slock-AF_IUCV" ,
"slock-AF_RXRPC" , "slock-AF_ISDN" , "slock-AF_PHONET" ,
+ "slock-AF_IEEE802154",
"slock-AF_MAX"
};
static const char *af_family_clock_key_strings[AF_MAX+1] = {
@@ -185,6 +187,7 @@ static const char *af_family_clock_key_strings[AF_MAX+1] = {
"clock-27" , "clock-28" , "clock-AF_CAN" ,
"clock-AF_TIPC" , "clock-AF_BLUETOOTH", "clock-AF_IUCV" ,
"clock-AF_RXRPC" , "clock-AF_ISDN" , "clock-AF_PHONET" ,
+ "clock-AF_IEEE802154",
"clock-AF_MAX"
};
@@ -212,6 +215,7 @@ __u32 sysctl_rmem_default __read_mostly = SK_RMEM_MAX;
/* Maximal space eaten by iovec or ancilliary data plus some space */
int sysctl_optmem_max __read_mostly = sizeof(unsigned long)*(2*UIO_MAXIOV+512);
+EXPORT_SYMBOL(sysctl_optmem_max);
static int sock_set_timeout(long *timeo_p, char __user *optval, int optlen)
{
@@ -444,7 +448,7 @@ static inline void sock_valbool_flag(struct sock *sk, int bit, int valbool)
int sock_setsockopt(struct socket *sock, int level, int optname,
char __user *optval, int optlen)
{
- struct sock *sk=sock->sk;
+ struct sock *sk = sock->sk;
int val;
int valbool;
struct linger ling;
@@ -463,15 +467,15 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
if (get_user(val, (int __user *)optval))
return -EFAULT;
- valbool = val?1:0;
+ valbool = val ? 1 : 0;
lock_sock(sk);
- switch(optname) {
+ switch (optname) {
case SO_DEBUG:
- if (val && !capable(CAP_NET_ADMIN)) {
+ if (val && !capable(CAP_NET_ADMIN))
ret = -EACCES;
- } else
+ else
sock_valbool_flag(sk, SOCK_DBG, valbool);
break;
case SO_REUSEADDR:
@@ -582,7 +586,7 @@ set_rcvbuf:
ret = -EINVAL; /* 1003.1g */
break;
}
- if (copy_from_user(&ling,optval,sizeof(ling))) {
+ if (copy_from_user(&ling, optval, sizeof(ling))) {
ret = -EFAULT;
break;
}
@@ -690,9 +694,8 @@ set_rcvbuf:
case SO_MARK:
if (!capable(CAP_NET_ADMIN))
ret = -EPERM;
- else {
+ else
sk->sk_mark = val;
- }
break;
/* We implement the SO_SNDLOWAT etc to
@@ -704,6 +707,7 @@ set_rcvbuf:
release_sock(sk);
return ret;
}
+EXPORT_SYMBOL(sock_setsockopt);
int sock_getsockopt(struct socket *sock, int level, int optname,
@@ -727,7 +731,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
memset(&v, 0, sizeof(v));
- switch(optname) {
+ switch (optname) {
case SO_DEBUG:
v.val = sock_flag(sk, SOCK_DBG);
break;
@@ -762,7 +766,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
case SO_ERROR:
v.val = -sock_error(sk);
- if (v.val==0)
+ if (v.val == 0)
v.val = xchg(&sk->sk_err_soft, 0);
break;
@@ -816,7 +820,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
break;
case SO_RCVTIMEO:
- lv=sizeof(struct timeval);
+ lv = sizeof(struct timeval);
if (sk->sk_rcvtimeo == MAX_SCHEDULE_TIMEOUT) {
v.tm.tv_sec = 0;
v.tm.tv_usec = 0;
@@ -827,7 +831,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
break;
case SO_SNDTIMEO:
- lv=sizeof(struct timeval);
+ lv = sizeof(struct timeval);
if (sk->sk_sndtimeo == MAX_SCHEDULE_TIMEOUT) {
v.tm.tv_sec = 0;
v.tm.tv_usec = 0;
@@ -842,7 +846,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
break;
case SO_SNDLOWAT:
- v.val=1;
+ v.val = 1;
break;
case SO_PASSCRED:
@@ -1002,8 +1006,9 @@ struct sock *sk_alloc(struct net *net, int family, gfp_t priority,
return sk;
}
+EXPORT_SYMBOL(sk_alloc);
-void sk_free(struct sock *sk)
+static void __sk_free(struct sock *sk)
{
struct sk_filter *filter;
@@ -1027,6 +1032,18 @@ void sk_free(struct sock *sk)
sk_prot_free(sk->sk_prot_creator, sk);
}
+void sk_free(struct sock *sk)
+{
+ /*
+ * We substract one from sk_wmem_alloc and can know if
+ * some packets are still in some tx queue.
+ * If not null, sock_wfree() will call __sk_free(sk) later
+ */
+ if (atomic_dec_and_test(&sk->sk_wmem_alloc))
+ __sk_free(sk);
+}
+EXPORT_SYMBOL(sk_free);
+
/*
* Last sock_put should drop referrence to sk->sk_net. It has already
* been dropped in sk_change_net. Taking referrence to stopping namespace
@@ -1065,7 +1082,10 @@ struct sock *sk_clone(const struct sock *sk, const gfp_t priority)
newsk->sk_backlog.head = newsk->sk_backlog.tail = NULL;
atomic_set(&newsk->sk_rmem_alloc, 0);
- atomic_set(&newsk->sk_wmem_alloc, 0);
+ /*
+ * sk_wmem_alloc set to one (see sk_free() and sock_wfree())
+ */
+ atomic_set(&newsk->sk_wmem_alloc, 1);
atomic_set(&newsk->sk_omem_alloc, 0);
skb_queue_head_init(&newsk->sk_receive_queue);
skb_queue_head_init(&newsk->sk_write_queue);
@@ -1126,7 +1146,6 @@ struct sock *sk_clone(const struct sock *sk, const gfp_t priority)
out:
return newsk;
}
-
EXPORT_SYMBOL_GPL(sk_clone);
void sk_setup_caps(struct sock *sk, struct dst_entry *dst)
@@ -1170,13 +1189,20 @@ void __init sk_init(void)
void sock_wfree(struct sk_buff *skb)
{
struct sock *sk = skb->sk;
+ int res;
/* In case it might be waiting for more memory. */
- atomic_sub(skb->truesize, &sk->sk_wmem_alloc);
+ res = atomic_sub_return(skb->truesize, &sk->sk_wmem_alloc);
if (!sock_flag(sk, SOCK_USE_WRITE_QUEUE))
sk->sk_write_space(sk);
- sock_put(sk);
+ /*
+ * if sk_wmem_alloc reached 0, we are last user and should
+ * free this sock, as sk_free() call could not do it.
+ */
+ if (res == 0)
+ __sk_free(sk);
}
+EXPORT_SYMBOL(sock_wfree);
/*
* Read buffer destructor automatically called from kfree_skb.
@@ -1188,6 +1214,7 @@ void sock_rfree(struct sk_buff *skb)
atomic_sub(skb->truesize, &sk->sk_rmem_alloc);
sk_mem_uncharge(skb->sk, skb->truesize);
}
+EXPORT_SYMBOL(sock_rfree);
int sock_i_uid(struct sock *sk)
@@ -1199,6 +1226,7 @@ int sock_i_uid(struct sock *sk)
read_unlock(&sk->sk_callback_lock);
return uid;
}
+EXPORT_SYMBOL(sock_i_uid);
unsigned long sock_i_ino(struct sock *sk)
{
@@ -1209,6 +1237,7 @@ unsigned long sock_i_ino(struct sock *sk)
read_unlock(&sk->sk_callback_lock);
return ino;
}
+EXPORT_SYMBOL(sock_i_ino);
/*
* Allocate a skb from the socket's send buffer.
@@ -1217,7 +1246,7 @@ struct sk_buff *sock_wmalloc(struct sock *sk, unsigned long size, int force,
gfp_t priority)
{
if (force || atomic_read(&sk->sk_wmem_alloc) < sk->sk_sndbuf) {
- struct sk_buff * skb = alloc_skb(size, priority);
+ struct sk_buff *skb = alloc_skb(size, priority);
if (skb) {
skb_set_owner_w(skb, sk);
return skb;
@@ -1225,6 +1254,7 @@ struct sk_buff *sock_wmalloc(struct sock *sk, unsigned long size, int force,
}
return NULL;
}
+EXPORT_SYMBOL(sock_wmalloc);
/*
* Allocate a skb from the socket's receive buffer.
@@ -1261,6 +1291,7 @@ void *sock_kmalloc(struct sock *sk, int size, gfp_t priority)
}
return NULL;
}
+EXPORT_SYMBOL(sock_kmalloc);
/*
* Free an option memory block.
@@ -1270,11 +1301,12 @@ void sock_kfree_s(struct sock *sk, void *mem, int size)
kfree(mem);
atomic_sub(size, &sk->sk_omem_alloc);
}
+EXPORT_SYMBOL(sock_kfree_s);
/* It is almost wait_for_tcp_memory minus release_sock/lock_sock.
I think, these locks should be removed for datagram sockets.
*/
-static long sock_wait_for_wmem(struct sock * sk, long timeo)
+static long sock_wait_for_wmem(struct sock *sk, long timeo)
{
DEFINE_WAIT(wait);
@@ -1392,6 +1424,7 @@ struct sk_buff *sock_alloc_send_skb(struct sock *sk, unsigned long size,
{
return sock_alloc_send_pskb(sk, size, 0, noblock, errcode);
}
+EXPORT_SYMBOL(sock_alloc_send_skb);
static void __lock_sock(struct sock *sk)
{
@@ -1460,7 +1493,6 @@ int sk_wait_data(struct sock *sk, long *timeo)
finish_wait(sk->sk_sleep, &wait);
return rc;
}
-
EXPORT_SYMBOL(sk_wait_data);
/**
@@ -1541,7 +1573,6 @@ suppress_allocation:
atomic_sub(amt, prot->memory_allocated);
return 0;
}
-
EXPORT_SYMBOL(__sk_mem_schedule);
/**
@@ -1560,7 +1591,6 @@ void __sk_mem_reclaim(struct sock *sk)
(atomic_read(prot->memory_allocated) < prot->sysctl_mem[0]))
*prot->memory_pressure = 0;
}
-
EXPORT_SYMBOL(__sk_mem_reclaim);
@@ -1575,78 +1605,92 @@ int sock_no_bind(struct socket *sock, struct sockaddr *saddr, int len)
{
return -EOPNOTSUPP;
}
+EXPORT_SYMBOL(sock_no_bind);
int sock_no_connect(struct socket *sock, struct sockaddr *saddr,
int len, int flags)
{
return -EOPNOTSUPP;
}
+EXPORT_SYMBOL(sock_no_connect);
int sock_no_socketpair(struct socket *sock1, struct socket *sock2)
{
return -EOPNOTSUPP;
}
+EXPORT_SYMBOL(sock_no_socketpair);
int sock_no_accept(struct socket *sock, struct socket *newsock, int flags)
{
return -EOPNOTSUPP;
}
+EXPORT_SYMBOL(sock_no_accept);
int sock_no_getname(struct socket *sock, struct sockaddr *saddr,
int *len, int peer)
{
return -EOPNOTSUPP;
}
+EXPORT_SYMBOL(sock_no_getname);
-unsigned int sock_no_poll(struct file * file, struct socket *sock, poll_table *pt)
+unsigned int sock_no_poll(struct file *file, struct socket *sock, poll_table *pt)
{
return 0;
}
+EXPORT_SYMBOL(sock_no_poll);
int sock_no_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
{
return -EOPNOTSUPP;
}
+EXPORT_SYMBOL(sock_no_ioctl);
int sock_no_listen(struct socket *sock, int backlog)
{
return -EOPNOTSUPP;
}
+EXPORT_SYMBOL(sock_no_listen);
int sock_no_shutdown(struct socket *sock, int how)
{
return -EOPNOTSUPP;
}
+EXPORT_SYMBOL(sock_no_shutdown);
int sock_no_setsockopt(struct socket *sock, int level, int optname,
char __user *optval, int optlen)
{
return -EOPNOTSUPP;
}
+EXPORT_SYMBOL(sock_no_setsockopt);
int sock_no_getsockopt(struct socket *sock, int level, int optname,
char __user *optval, int __user *optlen)
{
return -EOPNOTSUPP;
}
+EXPORT_SYMBOL(sock_no_getsockopt);
int sock_no_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *m,
size_t len)
{
return -EOPNOTSUPP;
}
+EXPORT_SYMBOL(sock_no_sendmsg);
int sock_no_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *m,
size_t len, int flags)
{
return -EOPNOTSUPP;
}
+EXPORT_SYMBOL(sock_no_recvmsg);
int sock_no_mmap(struct file *file, struct socket *sock, struct vm_area_struct *vma)
{
/* Mirror missing mmap method error code */
return -ENODEV;
}
+EXPORT_SYMBOL(sock_no_mmap);
ssize_t sock_no_sendpage(struct socket *sock, struct page *page, int offset, size_t size, int flags)
{
@@ -1660,6 +1704,7 @@ ssize_t sock_no_sendpage(struct socket *sock, struct page *page, int offset, siz
kunmap(page);
return res;
}
+EXPORT_SYMBOL(sock_no_sendpage);
/*
* Default Socket Callbacks
@@ -1723,6 +1768,7 @@ void sk_send_sigurg(struct sock *sk)
if (send_sigurg(&sk->sk_socket->file->f_owner))
sk_wake_async(sk, SOCK_WAKE_URG, POLL_PRI);
}
+EXPORT_SYMBOL(sk_send_sigurg);
void sk_reset_timer(struct sock *sk, struct timer_list* timer,
unsigned long expires)
@@ -1730,7 +1776,6 @@ void sk_reset_timer(struct sock *sk, struct timer_list* timer,
if (!mod_timer(timer, expires))
sock_hold(sk);
}
-
EXPORT_SYMBOL(sk_reset_timer);
void sk_stop_timer(struct sock *sk, struct timer_list* timer)
@@ -1738,7 +1783,6 @@ void sk_stop_timer(struct sock *sk, struct timer_list* timer)
if (timer_pending(timer) && del_timer(timer))
__sock_put(sk);
}
-
EXPORT_SYMBOL(sk_stop_timer);
void sock_init_data(struct socket *sock, struct sock *sk)
@@ -1795,8 +1839,10 @@ void sock_init_data(struct socket *sock, struct sock *sk)
sk->sk_stamp = ktime_set(-1L, 0);
atomic_set(&sk->sk_refcnt, 1);
+ atomic_set(&sk->sk_wmem_alloc, 1);
atomic_set(&sk->sk_drops, 0);
}
+EXPORT_SYMBOL(sock_init_data);
void lock_sock_nested(struct sock *sk, int subclass)
{
@@ -1812,7 +1858,6 @@ void lock_sock_nested(struct sock *sk, int subclass)
mutex_acquire(&sk->sk_lock.dep_map, subclass, 0, _RET_IP_);
local_bh_enable();
}
-
EXPORT_SYMBOL(lock_sock_nested);
void release_sock(struct sock *sk)
@@ -1895,7 +1940,6 @@ int sock_common_getsockopt(struct socket *sock, int level, int optname,
return sk->sk_prot->getsockopt(sk, level, optname, optval, optlen);
}
-
EXPORT_SYMBOL(sock_common_getsockopt);
#ifdef CONFIG_COMPAT
@@ -1925,7 +1969,6 @@ int sock_common_recvmsg(struct kiocb *iocb, struct socket *sock,
msg->msg_namelen = addr_len;
return err;
}
-
EXPORT_SYMBOL(sock_common_recvmsg);
/*
@@ -1938,7 +1981,6 @@ int sock_common_setsockopt(struct socket *sock, int level, int optname,
return sk->sk_prot->setsockopt(sk, level, optname, optval, optlen);
}
-
EXPORT_SYMBOL(sock_common_setsockopt);
#ifdef CONFIG_COMPAT
@@ -1989,7 +2031,6 @@ void sk_common_release(struct sock *sk)
sk_refcnt_debug_release(sk);
sock_put(sk);
}
-
EXPORT_SYMBOL(sk_common_release);
static DEFINE_RWLOCK(proto_list_lock);
@@ -2171,7 +2212,6 @@ out_free_sock_slab:
out:
return -ENOBUFS;
}
-
EXPORT_SYMBOL(proto_register);
void proto_unregister(struct proto *prot)
@@ -2198,7 +2238,6 @@ void proto_unregister(struct proto *prot)
prot->twsk_prot->twsk_slab = NULL;
}
}
-
EXPORT_SYMBOL(proto_unregister);
#ifdef CONFIG_PROC_FS
@@ -2324,33 +2363,3 @@ static int __init proto_init(void)
subsys_initcall(proto_init);
#endif /* PROC_FS */
-
-EXPORT_SYMBOL(sk_alloc);
-EXPORT_SYMBOL(sk_free);
-EXPORT_SYMBOL(sk_send_sigurg);
-EXPORT_SYMBOL(sock_alloc_send_skb);
-EXPORT_SYMBOL(sock_init_data);
-EXPORT_SYMBOL(sock_kfree_s);
-EXPORT_SYMBOL(sock_kmalloc);
-EXPORT_SYMBOL(sock_no_accept);
-EXPORT_SYMBOL(sock_no_bind);
-EXPORT_SYMBOL(sock_no_connect);
-EXPORT_SYMBOL(sock_no_getname);
-EXPORT_SYMBOL(sock_no_getsockopt);
-EXPORT_SYMBOL(sock_no_ioctl);
-EXPORT_SYMBOL(sock_no_listen);
-EXPORT_SYMBOL(sock_no_mmap);
-EXPORT_SYMBOL(sock_no_poll);
-EXPORT_SYMBOL(sock_no_recvmsg);
-EXPORT_SYMBOL(sock_no_sendmsg);
-EXPORT_SYMBOL(sock_no_sendpage);
-EXPORT_SYMBOL(sock_no_setsockopt);
-EXPORT_SYMBOL(sock_no_shutdown);
-EXPORT_SYMBOL(sock_no_socketpair);
-EXPORT_SYMBOL(sock_rfree);
-EXPORT_SYMBOL(sock_setsockopt);
-EXPORT_SYMBOL(sock_wfree);
-EXPORT_SYMBOL(sock_wmalloc);
-EXPORT_SYMBOL(sock_i_uid);
-EXPORT_SYMBOL(sock_i_ino);
-EXPORT_SYMBOL(sysctl_optmem_max);
diff --git a/net/core/user_dma.c b/net/core/user_dma.c
index 164b090d5ac..25d717ebc92 100644
--- a/net/core/user_dma.c
+++ b/net/core/user_dma.c
@@ -51,6 +51,7 @@ int dma_skb_copy_datagram_iovec(struct dma_chan *chan,
{
int start = skb_headlen(skb);
int i, copy = start - offset;
+ struct sk_buff *frag_iter;
dma_cookie_t cookie = 0;
/* Copy header. */
@@ -94,31 +95,28 @@ int dma_skb_copy_datagram_iovec(struct dma_chan *chan,
start = end;
}
- if (skb_shinfo(skb)->frag_list) {
- struct sk_buff *list = skb_shinfo(skb)->frag_list;
-
- for (; list; list = list->next) {
- int end;
-
- WARN_ON(start > offset + len);
-
- end = start + list->len;
- copy = end - offset;
- if (copy > 0) {
- if (copy > len)
- copy = len;
- cookie = dma_skb_copy_datagram_iovec(chan, list,
- offset - start, to, copy,
- pinned_list);
- if (cookie < 0)
- goto fault;
- len -= copy;
- if (len == 0)
- goto end;
- offset += copy;
- }
- start = end;
+ skb_walk_frags(skb, frag_iter) {
+ int end;
+
+ WARN_ON(start > offset + len);
+
+ end = start + frag_iter->len;
+ copy = end - offset;
+ if (copy > 0) {
+ if (copy > len)
+ copy = len;
+ cookie = dma_skb_copy_datagram_iovec(chan, frag_iter,
+ offset - start,
+ to, copy,
+ pinned_list);
+ if (cookie < 0)
+ goto fault;
+ len -= copy;
+ if (len == 0)
+ goto end;
+ offset += copy;
}
+ start = end;
}
end:
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index d1dd95289b8..a0a36c9e6cc 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -452,7 +452,7 @@ static struct dst_entry* dccp_v4_route_skb(struct net *net, struct sock *sk,
struct sk_buff *skb)
{
struct rtable *rt;
- struct flowi fl = { .oif = skb->rtable->rt_iif,
+ struct flowi fl = { .oif = skb_rtable(skb)->rt_iif,
.nl_u = { .ip4_u =
{ .daddr = ip_hdr(skb)->saddr,
.saddr = ip_hdr(skb)->daddr,
@@ -507,14 +507,14 @@ static void dccp_v4_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
const struct iphdr *rxiph;
struct sk_buff *skb;
struct dst_entry *dst;
- struct net *net = dev_net(rxskb->dst->dev);
+ struct net *net = dev_net(skb_dst(rxskb)->dev);
struct sock *ctl_sk = net->dccp.v4_ctl_sk;
/* Never send a reset in response to a reset. */
if (dccp_hdr(rxskb)->dccph_type == DCCP_PKT_RESET)
return;
- if (rxskb->rtable->rt_type != RTN_LOCAL)
+ if (skb_rtable(rxskb)->rt_type != RTN_LOCAL)
return;
dst = dccp_v4_route_skb(net, ctl_sk, rxskb);
@@ -528,7 +528,7 @@ static void dccp_v4_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
rxiph = ip_hdr(rxskb);
dccp_hdr(skb)->dccph_checksum = dccp_v4_csum_finish(skb, rxiph->saddr,
rxiph->daddr);
- skb->dst = dst_clone(dst);
+ skb_dst_set(skb, dst_clone(dst));
bh_lock_sock(ctl_sk);
err = ip_build_and_send_pkt(skb, ctl_sk,
@@ -567,7 +567,7 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
struct dccp_skb_cb *dcb = DCCP_SKB_CB(skb);
/* Never answer to DCCP_PKT_REQUESTs send to broadcast or multicast */
- if (skb->rtable->rt_flags & (RTCF_BROADCAST | RTCF_MULTICAST))
+ if (skb_rtable(skb)->rt_flags & (RTCF_BROADCAST | RTCF_MULTICAST))
return 0; /* discard, don't send a reset here */
if (dccp_bad_service_code(sk, service)) {
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index b963f35c65f..05ea7440d9e 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -314,8 +314,9 @@ static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
struct ipv6hdr *rxip6h;
struct sk_buff *skb;
struct flowi fl;
- struct net *net = dev_net(rxskb->dst->dev);
+ struct net *net = dev_net(skb_dst(rxskb)->dev);
struct sock *ctl_sk = net->dccp.v6_ctl_sk;
+ struct dst_entry *dst;
if (dccp_hdr(rxskb)->dccph_type == DCCP_PKT_RESET)
return;
@@ -342,8 +343,9 @@ static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
security_skb_classify_flow(rxskb, &fl);
/* sk = NULL, but it is safe for now. RST socket required. */
- if (!ip6_dst_lookup(ctl_sk, &skb->dst, &fl)) {
- if (xfrm_lookup(net, &skb->dst, &fl, NULL, 0) >= 0) {
+ if (!ip6_dst_lookup(ctl_sk, &dst, &fl)) {
+ if (xfrm_lookup(net, &dst, &fl, NULL, 0) >= 0) {
+ skb_dst_set(skb, dst);
ip6_xmit(ctl_sk, skb, &fl, NULL, 0);
DCCP_INC_STATS_BH(DCCP_MIB_OUTSEGS);
DCCP_INC_STATS_BH(DCCP_MIB_OUTRSTS);
diff --git a/net/dccp/output.c b/net/dccp/output.c
index 36bcc00654d..c0e88c16d08 100644
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -350,7 +350,7 @@ struct sk_buff *dccp_make_response(struct sock *sk, struct dst_entry *dst,
/* Reserve space for headers. */
skb_reserve(skb, sk->sk_prot->max_header);
- skb->dst = dst_clone(dst);
+ skb_dst_set(skb, dst_clone(dst));
dreq = dccp_rsk(req);
if (inet_rsk(req)->acked) /* increase ISS upon retransmission */
diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
index 9647d911f91..a5e3a593e47 100644
--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -1075,6 +1075,7 @@ static int dn_accept(struct socket *sock, struct socket *newsock, int flags)
int err = 0;
unsigned char type;
long timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
+ struct dst_entry *dst;
lock_sock(sk);
@@ -1102,8 +1103,9 @@ static int dn_accept(struct socket *sock, struct socket *newsock, int flags)
}
release_sock(sk);
- dst_release(xchg(&newsk->sk_dst_cache, skb->dst));
- skb->dst = NULL;
+ dst = skb_dst(skb);
+ dst_release(xchg(&newsk->sk_dst_cache, dst));
+ skb_dst_set(skb, NULL);
DN_SK(newsk)->state = DN_CR;
DN_SK(newsk)->addrrem = cb->src_port;
@@ -1250,14 +1252,8 @@ static int dn_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
if (skb) {
amount = skb->len;
} else {
- skb = sk->sk_receive_queue.next;
- for (;;) {
- if (skb ==
- (struct sk_buff *)&sk->sk_receive_queue)
- break;
+ skb_queue_walk(&sk->sk_receive_queue, skb)
amount += skb->len;
- skb = skb->next;
- }
}
release_sock(sk);
err = put_user(amount, (int __user *)arg);
@@ -1644,13 +1640,13 @@ static int __dn_getsockopt(struct socket *sock, int level,int optname, char __us
static int dn_data_ready(struct sock *sk, struct sk_buff_head *q, int flags, int target)
{
- struct sk_buff *skb = q->next;
+ struct sk_buff *skb;
int len = 0;
if (flags & MSG_OOB)
return !skb_queue_empty(q) ? 1 : 0;
- while(skb != (struct sk_buff *)q) {
+ skb_queue_walk(q, skb) {
struct dn_skb_cb *cb = DN_SKB_CB(skb);
len += skb->len;
@@ -1666,8 +1662,6 @@ static int dn_data_ready(struct sock *sk, struct sk_buff_head *q, int flags, int
/* minimum data length for read exceeded */
if (len >= target)
return 1;
-
- skb = skb->next;
}
return 0;
@@ -1683,7 +1677,7 @@ static int dn_recvmsg(struct kiocb *iocb, struct socket *sock,
size_t target = size > 1 ? 1 : 0;
size_t copied = 0;
int rv = 0;
- struct sk_buff *skb, *nskb;
+ struct sk_buff *skb, *n;
struct dn_skb_cb *cb = NULL;
unsigned char eor = 0;
long timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
@@ -1758,7 +1752,7 @@ static int dn_recvmsg(struct kiocb *iocb, struct socket *sock,
finish_wait(sk->sk_sleep, &wait);
}
- for(skb = queue->next; skb != (struct sk_buff *)queue; skb = nskb) {
+ skb_queue_walk_safe(queue, skb, n) {
unsigned int chunk = skb->len;
cb = DN_SKB_CB(skb);
@@ -1775,7 +1769,6 @@ static int dn_recvmsg(struct kiocb *iocb, struct socket *sock,
skb_pull(skb, chunk);
eor = cb->nsp_flags & 0x40;
- nskb = skb->next;
if (skb->len == 0) {
skb_unlink(skb, queue);
diff --git a/net/decnet/dn_neigh.c b/net/decnet/dn_neigh.c
index 05b5aa05e50..923786bd6d0 100644
--- a/net/decnet/dn_neigh.c
+++ b/net/decnet/dn_neigh.c
@@ -204,7 +204,7 @@ static void dn_short_error_report(struct neighbour *neigh, struct sk_buff *skb)
static int dn_neigh_output_packet(struct sk_buff *skb)
{
- struct dst_entry *dst = skb->dst;
+ struct dst_entry *dst = skb_dst(skb);
struct dn_route *rt = (struct dn_route *)dst;
struct neighbour *neigh = dst->neighbour;
struct net_device *dev = neigh->dev;
@@ -224,7 +224,7 @@ static int dn_neigh_output_packet(struct sk_buff *skb)
static int dn_long_output(struct sk_buff *skb)
{
- struct dst_entry *dst = skb->dst;
+ struct dst_entry *dst = skb_dst(skb);
struct neighbour *neigh = dst->neighbour;
struct net_device *dev = neigh->dev;
int headroom = dev->hard_header_len + sizeof(struct dn_long_packet) + 3;
@@ -270,7 +270,7 @@ static int dn_long_output(struct sk_buff *skb)
static int dn_short_output(struct sk_buff *skb)
{
- struct dst_entry *dst = skb->dst;
+ struct dst_entry *dst = skb_dst(skb);
struct neighbour *neigh = dst->neighbour;
struct net_device *dev = neigh->dev;
int headroom = dev->hard_header_len + sizeof(struct dn_short_packet) + 2;
@@ -313,7 +313,7 @@ static int dn_short_output(struct sk_buff *skb)
*/
static int dn_phase3_output(struct sk_buff *skb)
{
- struct dst_entry *dst = skb->dst;
+ struct dst_entry *dst = skb_dst(skb);
struct neighbour *neigh = dst->neighbour;
struct net_device *dev = neigh->dev;
int headroom = dev->hard_header_len + sizeof(struct dn_short_packet) + 2;
diff --git a/net/decnet/dn_nsp_out.c b/net/decnet/dn_nsp_out.c
index 2013c25b7f5..a65e929ce76 100644
--- a/net/decnet/dn_nsp_out.c
+++ b/net/decnet/dn_nsp_out.c
@@ -85,7 +85,7 @@ static void dn_nsp_send(struct sk_buff *skb)
dst = sk_dst_check(sk, 0);
if (dst) {
try_again:
- skb->dst = dst;
+ skb_dst_set(skb, dst);
dst_output(skb);
return;
}
@@ -382,7 +382,7 @@ int dn_nsp_check_xmit_queue(struct sock *sk, struct sk_buff *skb, struct sk_buff
{
struct dn_skb_cb *cb = DN_SKB_CB(skb);
struct dn_scp *scp = DN_SK(sk);
- struct sk_buff *skb2, *list, *ack = NULL;
+ struct sk_buff *skb2, *n, *ack = NULL;
int wakeup = 0;
int try_retrans = 0;
unsigned long reftime = cb->stamp;
@@ -390,9 +390,7 @@ int dn_nsp_check_xmit_queue(struct sock *sk, struct sk_buff *skb, struct sk_buff
unsigned short xmit_count;
unsigned short segnum;
- skb2 = q->next;
- list = (struct sk_buff *)q;
- while(list != skb2) {
+ skb_queue_walk_safe(q, skb2, n) {
struct dn_skb_cb *cb2 = DN_SKB_CB(skb2);
if (dn_before_or_equal(cb2->segnum, acknum))
@@ -400,8 +398,6 @@ int dn_nsp_check_xmit_queue(struct sock *sk, struct sk_buff *skb, struct sk_buff
/* printk(KERN_DEBUG "ack: %s %04x %04x\n", ack ? "ACK" : "SKIP", (int)cb2->segnum, (int)acknum); */
- skb2 = skb2->next;
-
if (ack == NULL)
continue;
@@ -586,7 +582,7 @@ static __inline__ void dn_nsp_do_disc(struct sock *sk, unsigned char msgflg,
* to be able to send disc packets out which have no socket
* associations.
*/
- skb->dst = dst_clone(dst);
+ skb_dst_set(skb, dst_clone(dst));
dst_output(skb);
}
@@ -615,7 +611,7 @@ void dn_nsp_return_disc(struct sk_buff *skb, unsigned char msgflg,
int ddl = 0;
gfp_t gfp = GFP_ATOMIC;
- dn_nsp_do_disc(NULL, msgflg, reason, gfp, skb->dst, ddl,
+ dn_nsp_do_disc(NULL, msgflg, reason, gfp, skb_dst(skb), ddl,
NULL, cb->src_port, cb->dst_port);
}
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 0cc4394117d..1d6ca8a98dc 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -678,7 +678,7 @@ out:
static int dn_output(struct sk_buff *skb)
{
- struct dst_entry *dst = skb->dst;
+ struct dst_entry *dst = skb_dst(skb);
struct dn_route *rt = (struct dn_route *)dst;
struct net_device *dev = dst->dev;
struct dn_skb_cb *cb = DN_SKB_CB(skb);
@@ -717,7 +717,7 @@ error:
static int dn_forward(struct sk_buff *skb)
{
struct dn_skb_cb *cb = DN_SKB_CB(skb);
- struct dst_entry *dst = skb->dst;
+ struct dst_entry *dst = skb_dst(skb);
struct dn_dev *dn_db = dst->dev->dn_ptr;
struct dn_route *rt;
struct neighbour *neigh = dst->neighbour;
@@ -730,7 +730,7 @@ static int dn_forward(struct sk_buff *skb)
goto drop;
/* Ensure that we have enough space for headers */
- rt = (struct dn_route *)skb->dst;
+ rt = (struct dn_route *)skb_dst(skb);
header_len = dn_db->use_long ? 21 : 6;
if (skb_cow(skb, LL_RESERVED_SPACE(rt->u.dst.dev)+header_len))
goto drop;
@@ -1392,7 +1392,8 @@ make_route:
goto e_neighbour;
hash = dn_hash(rt->fl.fld_src, rt->fl.fld_dst);
- dn_insert_route(rt, hash, (struct dn_route **)&skb->dst);
+ dn_insert_route(rt, hash, &rt);
+ skb_dst_set(skb, &rt->u.dst);
done:
if (neigh)
@@ -1424,7 +1425,7 @@ static int dn_route_input(struct sk_buff *skb)
struct dn_skb_cb *cb = DN_SKB_CB(skb);
unsigned hash = dn_hash(cb->src, cb->dst);
- if (skb->dst)
+ if (skb_dst(skb))
return 0;
rcu_read_lock();
@@ -1437,7 +1438,7 @@ static int dn_route_input(struct sk_buff *skb)
(rt->fl.iif == cb->iif)) {
dst_use(&rt->u.dst, jiffies);
rcu_read_unlock();
- skb->dst = (struct dst_entry *)rt;
+ skb_dst_set(skb, (struct dst_entry *)rt);
return 0;
}
}
@@ -1449,7 +1450,7 @@ static int dn_route_input(struct sk_buff *skb)
static int dn_rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq,
int event, int nowait, unsigned int flags)
{
- struct dn_route *rt = (struct dn_route *)skb->dst;
+ struct dn_route *rt = (struct dn_route *)skb_dst(skb);
struct rtmsg *r;
struct nlmsghdr *nlh;
unsigned char *b = skb_tail_pointer(skb);
@@ -1554,7 +1555,7 @@ static int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void
err = dn_route_input(skb);
local_bh_enable();
memset(cb, 0, sizeof(struct dn_skb_cb));
- rt = (struct dn_route *)skb->dst;
+ rt = (struct dn_route *)skb_dst(skb);
if (!err && -rt->u.dst.error)
err = rt->u.dst.error;
} else {
@@ -1570,7 +1571,7 @@ static int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void
skb->dev = NULL;
if (err)
goto out_free;
- skb->dst = &rt->u.dst;
+ skb_dst_set(skb, &rt->u.dst);
if (rtm->rtm_flags & RTM_F_NOTIFY)
rt->rt_flags |= RTCF_NOTIFY;
@@ -1622,15 +1623,15 @@ int dn_cache_dump(struct sk_buff *skb, struct netlink_callback *cb)
rt = rcu_dereference(rt->u.dst.dn_next), idx++) {
if (idx < s_idx)
continue;
- skb->dst = dst_clone(&rt->u.dst);
+ skb_dst_set(skb, dst_clone(&rt->u.dst));
if (dn_rt_fill_info(skb, NETLINK_CB(cb->skb).pid,
cb->nlh->nlmsg_seq, RTM_NEWROUTE,
1, NLM_F_MULTI) <= 0) {
- dst_release(xchg(&skb->dst, NULL));
+ skb_dst_drop(skb);
rcu_read_unlock_bh();
goto done;
}
- dst_release(xchg(&skb->dst, NULL));
+ skb_dst_drop(skb);
}
rcu_read_unlock_bh();
}
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index ed131181215..2175e6d5cc8 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -67,7 +67,7 @@ static int dsa_slave_open(struct net_device *dev)
return -ENETDOWN;
if (compare_ether_addr(dev->dev_addr, master->dev_addr)) {
- err = dev_unicast_add(master, dev->dev_addr, ETH_ALEN);
+ err = dev_unicast_add(master, dev->dev_addr);
if (err < 0)
goto out;
}
@@ -90,7 +90,7 @@ clear_allmulti:
dev_set_allmulti(master, -1);
del_unicast:
if (compare_ether_addr(dev->dev_addr, master->dev_addr))
- dev_unicast_delete(master, dev->dev_addr, ETH_ALEN);
+ dev_unicast_delete(master, dev->dev_addr);
out:
return err;
}
@@ -108,7 +108,7 @@ static int dsa_slave_close(struct net_device *dev)
dev_set_promiscuity(master, -1);
if (compare_ether_addr(dev->dev_addr, master->dev_addr))
- dev_unicast_delete(master, dev->dev_addr, ETH_ALEN);
+ dev_unicast_delete(master, dev->dev_addr);
return 0;
}
@@ -147,13 +147,13 @@ static int dsa_slave_set_mac_address(struct net_device *dev, void *a)
goto out;
if (compare_ether_addr(addr->sa_data, master->dev_addr)) {
- err = dev_unicast_add(master, addr->sa_data, ETH_ALEN);
+ err = dev_unicast_add(master, addr->sa_data);
if (err < 0)
return err;
}
if (compare_ether_addr(dev->dev_addr, master->dev_addr))
- dev_unicast_delete(master, dev->dev_addr, ETH_ALEN);
+ dev_unicast_delete(master, dev->dev_addr);
out:
memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c
index 6f479fa522c..8121bf0029e 100644
--- a/net/econet/af_econet.c
+++ b/net/econet/af_econet.c
@@ -901,15 +901,10 @@ static void aun_tx_ack(unsigned long seq, int result)
struct ec_cb *eb;
spin_lock_irqsave(&aun_queue_lock, flags);
- skb = skb_peek(&aun_queue);
- while (skb && skb != (struct sk_buff *)&aun_queue)
- {
- struct sk_buff *newskb = skb->next;
+ skb_queue_walk(&aun_queue, skb) {
eb = (struct ec_cb *)&skb->cb;
if (eb->seq == seq)
goto foundit;
-
- skb = newskb;
}
spin_unlock_irqrestore(&aun_queue_lock, flags);
printk(KERN_DEBUG "AUN: unknown sequence %ld\n", seq);
@@ -982,23 +977,18 @@ static void aun_data_available(struct sock *sk, int slen)
static void ab_cleanup(unsigned long h)
{
- struct sk_buff *skb;
+ struct sk_buff *skb, *n;
unsigned long flags;
spin_lock_irqsave(&aun_queue_lock, flags);
- skb = skb_peek(&aun_queue);
- while (skb && skb != (struct sk_buff *)&aun_queue)
- {
- struct sk_buff *newskb = skb->next;
+ skb_queue_walk_safe(&aun_queue, skb, n) {
struct ec_cb *eb = (struct ec_cb *)&skb->cb;
- if ((jiffies - eb->start) > eb->timeout)
- {
+ if ((jiffies - eb->start) > eb->timeout) {
tx_result(skb->sk, eb->cookie,
ECTYPE_TRANSMIT_NOT_PRESENT);
skb_unlink(skb, &aun_queue);
kfree_skb(skb);
}
- skb = newskb;
}
spin_unlock_irqrestore(&aun_queue_lock, flags);
diff --git a/net/ieee802154/Kconfig b/net/ieee802154/Kconfig
new file mode 100644
index 00000000000..1c1de97d264
--- /dev/null
+++ b/net/ieee802154/Kconfig
@@ -0,0 +1,12 @@
+config IEEE802154
+ tristate "IEEE Std 802.15.4 Low-Rate Wireless Personal Area Networks support (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ ---help---
+ IEEE Std 802.15.4 defines a low data rate, low power and low
+ complexity short range wireless personal area networks. It was
+ designed to organise networks of sensors, switches, etc automation
+ devices. Maximum allowed data rate is 250 kb/s and typical personal
+ operating space around 10m.
+
+ Say Y here to compile LR-WPAN support into the kernel or say M to
+ compile it as modules.
diff --git a/net/ieee802154/Makefile b/net/ieee802154/Makefile
new file mode 100644
index 00000000000..f99338a2610
--- /dev/null
+++ b/net/ieee802154/Makefile
@@ -0,0 +1,5 @@
+obj-$(CONFIG_IEEE802154) += nl802154.o af_802154.o
+nl802154-y := netlink.o nl_policy.o
+af_802154-y := af_ieee802154.o raw.o dgram.o
+
+ccflags-y += -Wall -DDEBUG
diff --git a/net/ieee802154/af802154.h b/net/ieee802154/af802154.h
new file mode 100644
index 00000000000..b1ec5253752
--- /dev/null
+++ b/net/ieee802154/af802154.h
@@ -0,0 +1,36 @@
+/*
+ * Internal interfaces for ieee 802.15.4 address family.
+ *
+ * Copyright 2007, 2008, 2009 Siemens AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Written by:
+ * Sergey Lapin <slapin@ossfans.org>
+ * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+ */
+
+#ifndef AF802154_H
+#define AF802154_H
+
+struct sk_buff;
+struct net_devce;
+extern struct proto ieee802154_raw_prot;
+extern struct proto ieee802154_dgram_prot;
+void ieee802154_raw_deliver(struct net_device *dev, struct sk_buff *skb);
+int ieee802154_dgram_deliver(struct net_device *dev, struct sk_buff *skb);
+struct net_device *ieee802154_get_dev(struct net *net,
+ struct ieee802154_addr *addr);
+
+#endif
diff --git a/net/ieee802154/af_ieee802154.c b/net/ieee802154/af_ieee802154.c
new file mode 100644
index 00000000000..882a927cefa
--- /dev/null
+++ b/net/ieee802154/af_ieee802154.c
@@ -0,0 +1,372 @@
+/*
+ * IEEE802154.4 socket interface
+ *
+ * Copyright 2007, 2008 Siemens AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Written by:
+ * Sergey Lapin <slapin@ossfans.org>
+ * Maxim Gorbachyov <maxim.gorbachev@siemens.com>
+ */
+
+#include <linux/net.h>
+#include <linux/capability.h>
+#include <linux/module.h>
+#include <linux/if_arp.h>
+#include <linux/if.h>
+#include <linux/termios.h> /* For TIOCOUTQ/INQ */
+#include <linux/list.h>
+#include <net/datalink.h>
+#include <net/psnap.h>
+#include <net/sock.h>
+#include <net/tcp_states.h>
+#include <net/route.h>
+
+#include <net/ieee802154/af_ieee802154.h>
+#include <net/ieee802154/netdevice.h>
+
+#include "af802154.h"
+
+#define DBG_DUMP(data, len) { \
+ int i; \
+ pr_debug("function: %s: data: len %d:\n", __func__, len); \
+ for (i = 0; i < len; i++) {\
+ pr_debug("%02x: %02x\n", i, (data)[i]); \
+ } \
+}
+
+/*
+ * Utility function for families
+ */
+struct net_device *ieee802154_get_dev(struct net *net,
+ struct ieee802154_addr *addr)
+{
+ struct net_device *dev = NULL;
+ struct net_device *tmp;
+ u16 pan_id, short_addr;
+
+ switch (addr->addr_type) {
+ case IEEE802154_ADDR_LONG:
+ rtnl_lock();
+ dev = dev_getbyhwaddr(net, ARPHRD_IEEE802154, addr->hwaddr);
+ if (dev)
+ dev_hold(dev);
+ rtnl_unlock();
+ break;
+ case IEEE802154_ADDR_SHORT:
+ if (addr->pan_id == 0xffff ||
+ addr->short_addr == IEEE802154_ADDR_UNDEF ||
+ addr->short_addr == 0xffff)
+ break;
+
+ rtnl_lock();
+
+ for_each_netdev(net, tmp) {
+ if (tmp->type != ARPHRD_IEEE802154)
+ continue;
+
+ pan_id = ieee802154_mlme_ops(tmp)->get_pan_id(tmp);
+ short_addr =
+ ieee802154_mlme_ops(tmp)->get_short_addr(tmp);
+
+ if (pan_id == addr->pan_id &&
+ short_addr == addr->short_addr) {
+ dev = tmp;
+ dev_hold(dev);
+ break;
+ }
+ }
+
+ rtnl_unlock();
+ break;
+ default:
+ pr_warning("Unsupported ieee802154 address type: %d\n",
+ addr->addr_type);
+ break;
+ }
+
+ return dev;
+}
+
+static int ieee802154_sock_release(struct socket *sock)
+{
+ struct sock *sk = sock->sk;
+
+ if (sk) {
+ sock->sk = NULL;
+ sk->sk_prot->close(sk, 0);
+ }
+ return 0;
+}
+static int ieee802154_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
+ struct msghdr *msg, size_t len)
+{
+ struct sock *sk = sock->sk;
+
+ return sk->sk_prot->sendmsg(iocb, sk, msg, len);
+}
+
+static int ieee802154_sock_bind(struct socket *sock, struct sockaddr *uaddr,
+ int addr_len)
+{
+ struct sock *sk = sock->sk;
+
+ if (sk->sk_prot->bind)
+ return sk->sk_prot->bind(sk, uaddr, addr_len);
+
+ return sock_no_bind(sock, uaddr, addr_len);
+}
+
+static int ieee802154_sock_connect(struct socket *sock, struct sockaddr *uaddr,
+ int addr_len, int flags)
+{
+ struct sock *sk = sock->sk;
+
+ if (uaddr->sa_family == AF_UNSPEC)
+ return sk->sk_prot->disconnect(sk, flags);
+
+ return sk->sk_prot->connect(sk, uaddr, addr_len);
+}
+
+static int ieee802154_dev_ioctl(struct sock *sk, struct ifreq __user *arg,
+ unsigned int cmd)
+{
+ struct ifreq ifr;
+ int ret = -EINVAL;
+ struct net_device *dev;
+
+ if (copy_from_user(&ifr, arg, sizeof(struct ifreq)))
+ return -EFAULT;
+
+ ifr.ifr_name[IFNAMSIZ-1] = 0;
+
+ dev_load(sock_net(sk), ifr.ifr_name);
+ dev = dev_get_by_name(sock_net(sk), ifr.ifr_name);
+ if (dev->type == ARPHRD_IEEE802154 ||
+ dev->type == ARPHRD_IEEE802154_PHY)
+ ret = dev->netdev_ops->ndo_do_ioctl(dev, &ifr, cmd);
+
+ if (!ret && copy_to_user(arg, &ifr, sizeof(struct ifreq)))
+ ret = -EFAULT;
+ dev_put(dev);
+
+ return ret;
+}
+
+static int ieee802154_sock_ioctl(struct socket *sock, unsigned int cmd,
+ unsigned long arg)
+{
+ struct sock *sk = sock->sk;
+
+ switch (cmd) {
+ case SIOCGSTAMP:
+ return sock_get_timestamp(sk, (struct timeval __user *)arg);
+ case SIOCGSTAMPNS:
+ return sock_get_timestampns(sk, (struct timespec __user *)arg);
+ case SIOCGIFADDR:
+ case SIOCSIFADDR:
+ return ieee802154_dev_ioctl(sk, (struct ifreq __user *)arg,
+ cmd);
+ default:
+ if (!sk->sk_prot->ioctl)
+ return -ENOIOCTLCMD;
+ return sk->sk_prot->ioctl(sk, cmd, arg);
+ }
+}
+
+static const struct proto_ops ieee802154_raw_ops = {
+ .family = PF_IEEE802154,
+ .owner = THIS_MODULE,
+ .release = ieee802154_sock_release,
+ .bind = ieee802154_sock_bind,
+ .connect = ieee802154_sock_connect,
+ .socketpair = sock_no_socketpair,
+ .accept = sock_no_accept,
+ .getname = sock_no_getname,
+ .poll = datagram_poll,
+ .ioctl = ieee802154_sock_ioctl,
+ .listen = sock_no_listen,
+ .shutdown = sock_no_shutdown,
+ .setsockopt = sock_common_setsockopt,
+ .getsockopt = sock_common_getsockopt,
+ .sendmsg = ieee802154_sock_sendmsg,
+ .recvmsg = sock_common_recvmsg,
+ .mmap = sock_no_mmap,
+ .sendpage = sock_no_sendpage,
+#ifdef CONFIG_COMPAT
+ .compat_setsockopt = compat_sock_common_setsockopt,
+ .compat_getsockopt = compat_sock_common_getsockopt,
+#endif
+};
+
+static const struct proto_ops ieee802154_dgram_ops = {
+ .family = PF_IEEE802154,
+ .owner = THIS_MODULE,
+ .release = ieee802154_sock_release,
+ .bind = ieee802154_sock_bind,
+ .connect = ieee802154_sock_connect,
+ .socketpair = sock_no_socketpair,
+ .accept = sock_no_accept,
+ .getname = sock_no_getname,
+ .poll = datagram_poll,
+ .ioctl = ieee802154_sock_ioctl,
+ .listen = sock_no_listen,
+ .shutdown = sock_no_shutdown,
+ .setsockopt = sock_common_setsockopt,
+ .getsockopt = sock_common_getsockopt,
+ .sendmsg = ieee802154_sock_sendmsg,
+ .recvmsg = sock_common_recvmsg,
+ .mmap = sock_no_mmap,
+ .sendpage = sock_no_sendpage,
+#ifdef CONFIG_COMPAT
+ .compat_setsockopt = compat_sock_common_setsockopt,
+ .compat_getsockopt = compat_sock_common_getsockopt,
+#endif
+};
+
+
+/*
+ * Create a socket. Initialise the socket, blank the addresses
+ * set the state.
+ */
+static int ieee802154_create(struct net *net, struct socket *sock,
+ int protocol)
+{
+ struct sock *sk;
+ int rc;
+ struct proto *proto;
+ const struct proto_ops *ops;
+
+ if (net != &init_net)
+ return -EAFNOSUPPORT;
+
+ switch (sock->type) {
+ case SOCK_RAW:
+ proto = &ieee802154_raw_prot;
+ ops = &ieee802154_raw_ops;
+ break;
+ case SOCK_DGRAM:
+ proto = &ieee802154_dgram_prot;
+ ops = &ieee802154_dgram_ops;
+ break;
+ default:
+ rc = -ESOCKTNOSUPPORT;
+ goto out;
+ }
+
+ rc = -ENOMEM;
+ sk = sk_alloc(net, PF_IEEE802154, GFP_KERNEL, proto);
+ if (!sk)
+ goto out;
+ rc = 0;
+
+ sock->ops = ops;
+
+ sock_init_data(sock, sk);
+ /* FIXME: sk->sk_destruct */
+ sk->sk_family = PF_IEEE802154;
+
+ /* Checksums on by default */
+ sock_set_flag(sk, SOCK_ZAPPED);
+
+ if (sk->sk_prot->hash)
+ sk->sk_prot->hash(sk);
+
+ if (sk->sk_prot->init) {
+ rc = sk->sk_prot->init(sk);
+ if (rc)
+ sk_common_release(sk);
+ }
+out:
+ return rc;
+}
+
+static struct net_proto_family ieee802154_family_ops = {
+ .family = PF_IEEE802154,
+ .create = ieee802154_create,
+ .owner = THIS_MODULE,
+};
+
+static int ieee802154_rcv(struct sk_buff *skb, struct net_device *dev,
+ struct packet_type *pt, struct net_device *orig_dev)
+{
+ DBG_DUMP(skb->data, skb->len);
+ if (!netif_running(dev))
+ return -ENODEV;
+ pr_debug("got frame, type %d, dev %p\n", dev->type, dev);
+
+ if (!net_eq(dev_net(dev), &init_net))
+ goto drop;
+
+ ieee802154_raw_deliver(dev, skb);
+
+ if (dev->type != ARPHRD_IEEE802154)
+ goto drop;
+
+ if (skb->pkt_type != PACKET_OTHERHOST)
+ return ieee802154_dgram_deliver(dev, skb);
+
+drop:
+ kfree_skb(skb);
+ return NET_RX_DROP;
+}
+
+
+static struct packet_type ieee802154_packet_type = {
+ .type = __constant_htons(ETH_P_IEEE802154),
+ .func = ieee802154_rcv,
+};
+
+static int __init af_ieee802154_init(void)
+{
+ int rc = -EINVAL;
+
+ rc = proto_register(&ieee802154_raw_prot, 1);
+ if (rc)
+ goto out;
+
+ rc = proto_register(&ieee802154_dgram_prot, 1);
+ if (rc)
+ goto err_dgram;
+
+ /* Tell SOCKET that we are alive */
+ rc = sock_register(&ieee802154_family_ops);
+ if (rc)
+ goto err_sock;
+ dev_add_pack(&ieee802154_packet_type);
+
+ rc = 0;
+ goto out;
+
+err_sock:
+ proto_unregister(&ieee802154_dgram_prot);
+err_dgram:
+ proto_unregister(&ieee802154_raw_prot);
+out:
+ return rc;
+}
+static void __exit af_ieee802154_remove(void)
+{
+ dev_remove_pack(&ieee802154_packet_type);
+ sock_unregister(PF_IEEE802154);
+ proto_unregister(&ieee802154_dgram_prot);
+ proto_unregister(&ieee802154_raw_prot);
+}
+
+module_init(af_ieee802154_init);
+module_exit(af_ieee802154_remove);
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_NETPROTO(PF_IEEE802154);
diff --git a/net/ieee802154/dgram.c b/net/ieee802154/dgram.c
new file mode 100644
index 00000000000..1779677aed4
--- /dev/null
+++ b/net/ieee802154/dgram.c
@@ -0,0 +1,394 @@
+/*
+ * ZigBee socket interface
+ *
+ * Copyright 2007, 2008 Siemens AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Written by:
+ * Sergey Lapin <slapin@ossfans.org>
+ * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+ */
+
+#include <linux/net.h>
+#include <linux/module.h>
+#include <linux/if_arp.h>
+#include <linux/list.h>
+#include <net/sock.h>
+#include <net/ieee802154/af_ieee802154.h>
+#include <net/ieee802154/mac_def.h>
+#include <net/ieee802154/netdevice.h>
+
+#include <asm/ioctls.h>
+
+#include "af802154.h"
+
+static HLIST_HEAD(dgram_head);
+static DEFINE_RWLOCK(dgram_lock);
+
+struct dgram_sock {
+ struct sock sk;
+
+ int bound;
+ struct ieee802154_addr src_addr;
+ struct ieee802154_addr dst_addr;
+};
+
+static inline struct dgram_sock *dgram_sk(const struct sock *sk)
+{
+ return container_of(sk, struct dgram_sock, sk);
+}
+
+
+static void dgram_hash(struct sock *sk)
+{
+ write_lock_bh(&dgram_lock);
+ sk_add_node(sk, &dgram_head);
+ sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
+ write_unlock_bh(&dgram_lock);
+}
+
+static void dgram_unhash(struct sock *sk)
+{
+ write_lock_bh(&dgram_lock);
+ if (sk_del_node_init(sk))
+ sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
+ write_unlock_bh(&dgram_lock);
+}
+
+static int dgram_init(struct sock *sk)
+{
+ struct dgram_sock *ro = dgram_sk(sk);
+
+ ro->dst_addr.addr_type = IEEE802154_ADDR_LONG;
+ ro->dst_addr.pan_id = 0xffff;
+ memset(&ro->dst_addr.hwaddr, 0xff, sizeof(ro->dst_addr.hwaddr));
+ return 0;
+}
+
+static void dgram_close(struct sock *sk, long timeout)
+{
+ sk_common_release(sk);
+}
+
+static int dgram_bind(struct sock *sk, struct sockaddr *uaddr, int len)
+{
+ struct sockaddr_ieee802154 *addr = (struct sockaddr_ieee802154 *)uaddr;
+ struct dgram_sock *ro = dgram_sk(sk);
+ int err = 0;
+ struct net_device *dev;
+
+ ro->bound = 0;
+
+ if (len < sizeof(*addr))
+ return -EINVAL;
+
+ if (addr->family != AF_IEEE802154)
+ return -EINVAL;
+
+ lock_sock(sk);
+
+ dev = ieee802154_get_dev(sock_net(sk), &addr->addr);
+ if (!dev) {
+ err = -ENODEV;
+ goto out;
+ }
+
+ if (dev->type != ARPHRD_IEEE802154) {
+ err = -ENODEV;
+ goto out_put;
+ }
+
+ memcpy(&ro->src_addr, &addr->addr, sizeof(struct ieee802154_addr));
+
+ ro->bound = 1;
+out_put:
+ dev_put(dev);
+out:
+ release_sock(sk);
+
+ return err;
+}
+
+static int dgram_ioctl(struct sock *sk, int cmd, unsigned long arg)
+{
+ switch (cmd) {
+ case SIOCOUTQ:
+ {
+ int amount = atomic_read(&sk->sk_wmem_alloc);
+ return put_user(amount, (int __user *)arg);
+ }
+
+ case SIOCINQ:
+ {
+ struct sk_buff *skb;
+ unsigned long amount;
+
+ amount = 0;
+ spin_lock_bh(&sk->sk_receive_queue.lock);
+ skb = skb_peek(&sk->sk_receive_queue);
+ if (skb != NULL) {
+ /*
+ * We will only return the amount
+ * of this packet since that is all
+ * that will be read.
+ */
+ /* FIXME: parse the header for more correct value */
+ amount = skb->len - (3+8+8);
+ }
+ spin_unlock_bh(&sk->sk_receive_queue.lock);
+ return put_user(amount, (int __user *)arg);
+ }
+
+ }
+ return -ENOIOCTLCMD;
+}
+
+/* FIXME: autobind */
+static int dgram_connect(struct sock *sk, struct sockaddr *uaddr,
+ int len)
+{
+ struct sockaddr_ieee802154 *addr = (struct sockaddr_ieee802154 *)uaddr;
+ struct dgram_sock *ro = dgram_sk(sk);
+ int err = 0;
+
+ if (len < sizeof(*addr))
+ return -EINVAL;
+
+ if (addr->family != AF_IEEE802154)
+ return -EINVAL;
+
+ lock_sock(sk);
+
+ if (!ro->bound) {
+ err = -ENETUNREACH;
+ goto out;
+ }
+
+ memcpy(&ro->dst_addr, &addr->addr, sizeof(struct ieee802154_addr));
+
+out:
+ release_sock(sk);
+ return err;
+}
+
+static int dgram_disconnect(struct sock *sk, int flags)
+{
+ struct dgram_sock *ro = dgram_sk(sk);
+
+ lock_sock(sk);
+
+ ro->dst_addr.addr_type = IEEE802154_ADDR_LONG;
+ memset(&ro->dst_addr.hwaddr, 0xff, sizeof(ro->dst_addr.hwaddr));
+
+ release_sock(sk);
+
+ return 0;
+}
+
+static int dgram_sendmsg(struct kiocb *iocb, struct sock *sk,
+ struct msghdr *msg, size_t size)
+{
+ struct net_device *dev;
+ unsigned mtu;
+ struct sk_buff *skb;
+ struct dgram_sock *ro = dgram_sk(sk);
+ int err;
+
+ if (msg->msg_flags & MSG_OOB) {
+ pr_debug("msg->msg_flags = 0x%x\n", msg->msg_flags);
+ return -EOPNOTSUPP;
+ }
+
+ if (!ro->bound)
+ dev = dev_getfirstbyhwtype(sock_net(sk), ARPHRD_IEEE802154);
+ else
+ dev = ieee802154_get_dev(sock_net(sk), &ro->src_addr);
+
+ if (!dev) {
+ pr_debug("no dev\n");
+ err = -ENXIO;
+ goto out;
+ }
+ mtu = dev->mtu;
+ pr_debug("name = %s, mtu = %u\n", dev->name, mtu);
+
+ skb = sock_alloc_send_skb(sk, LL_ALLOCATED_SPACE(dev) + size,
+ msg->msg_flags & MSG_DONTWAIT,
+ &err);
+ if (!skb)
+ goto out_dev;
+
+ skb_reserve(skb, LL_RESERVED_SPACE(dev));
+
+ skb_reset_network_header(skb);
+
+ mac_cb(skb)->flags = IEEE802154_FC_TYPE_DATA | MAC_CB_FLAG_ACKREQ;
+ mac_cb(skb)->seq = ieee802154_mlme_ops(dev)->get_dsn(dev);
+ err = dev_hard_header(skb, dev, ETH_P_IEEE802154, &ro->dst_addr,
+ ro->bound ? &ro->src_addr : NULL, size);
+ if (err < 0)
+ goto out_skb;
+
+ skb_reset_mac_header(skb);
+
+ err = memcpy_fromiovec(skb_put(skb, size), msg->msg_iov, size);
+ if (err < 0)
+ goto out_skb;
+
+ if (size > mtu) {
+ pr_debug("size = %Zu, mtu = %u\n", size, mtu);
+ err = -EINVAL;
+ goto out_skb;
+ }
+
+ skb->dev = dev;
+ skb->sk = sk;
+ skb->protocol = htons(ETH_P_IEEE802154);
+
+ dev_put(dev);
+
+ err = dev_queue_xmit(skb);
+ if (err > 0)
+ err = net_xmit_errno(err);
+
+ return err ?: size;
+
+out_skb:
+ kfree_skb(skb);
+out_dev:
+ dev_put(dev);
+out:
+ return err;
+}
+
+static int dgram_recvmsg(struct kiocb *iocb, struct sock *sk,
+ struct msghdr *msg, size_t len, int noblock, int flags,
+ int *addr_len)
+{
+ size_t copied = 0;
+ int err = -EOPNOTSUPP;
+ struct sk_buff *skb;
+
+ skb = skb_recv_datagram(sk, flags, noblock, &err);
+ if (!skb)
+ goto out;
+
+ copied = skb->len;
+ if (len < copied) {
+ msg->msg_flags |= MSG_TRUNC;
+ copied = len;
+ }
+
+ /* FIXME: skip headers if necessary ?! */
+ err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
+ if (err)
+ goto done;
+
+ sock_recv_timestamp(msg, sk, skb);
+
+ if (flags & MSG_TRUNC)
+ copied = skb->len;
+done:
+ skb_free_datagram(sk, skb);
+out:
+ if (err)
+ return err;
+ return copied;
+}
+
+static int dgram_rcv_skb(struct sock *sk, struct sk_buff *skb)
+{
+ if (sock_queue_rcv_skb(sk, skb) < 0) {
+ atomic_inc(&sk->sk_drops);
+ kfree_skb(skb);
+ return NET_RX_DROP;
+ }
+
+ return NET_RX_SUCCESS;
+}
+
+static inline int ieee802154_match_sock(u8 *hw_addr, u16 pan_id,
+ u16 short_addr, struct dgram_sock *ro)
+{
+ if (!ro->bound)
+ return 1;
+
+ if (ro->src_addr.addr_type == IEEE802154_ADDR_LONG &&
+ !memcmp(ro->src_addr.hwaddr, hw_addr, IEEE802154_ADDR_LEN))
+ return 1;
+
+ if (ro->src_addr.addr_type == IEEE802154_ADDR_SHORT &&
+ pan_id == ro->src_addr.pan_id &&
+ short_addr == ro->src_addr.short_addr)
+ return 1;
+
+ return 0;
+}
+
+int ieee802154_dgram_deliver(struct net_device *dev, struct sk_buff *skb)
+{
+ struct sock *sk, *prev = NULL;
+ struct hlist_node *node;
+ int ret = NET_RX_SUCCESS;
+ u16 pan_id, short_addr;
+
+ /* Data frame processing */
+ BUG_ON(dev->type != ARPHRD_IEEE802154);
+
+ pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
+ short_addr = ieee802154_mlme_ops(dev)->get_short_addr(dev);
+
+ read_lock(&dgram_lock);
+ sk_for_each(sk, node, &dgram_head) {
+ if (ieee802154_match_sock(dev->dev_addr, pan_id, short_addr,
+ dgram_sk(sk))) {
+ if (prev) {
+ struct sk_buff *clone;
+ clone = skb_clone(skb, GFP_ATOMIC);
+ if (clone)
+ dgram_rcv_skb(prev, clone);
+ }
+
+ prev = sk;
+ }
+ }
+
+ if (prev)
+ dgram_rcv_skb(prev, skb);
+ else {
+ kfree_skb(skb);
+ ret = NET_RX_DROP;
+ }
+ read_unlock(&dgram_lock);
+
+ return ret;
+}
+
+struct proto ieee802154_dgram_prot = {
+ .name = "IEEE-802.15.4-MAC",
+ .owner = THIS_MODULE,
+ .obj_size = sizeof(struct dgram_sock),
+ .init = dgram_init,
+ .close = dgram_close,
+ .bind = dgram_bind,
+ .sendmsg = dgram_sendmsg,
+ .recvmsg = dgram_recvmsg,
+ .hash = dgram_hash,
+ .unhash = dgram_unhash,
+ .connect = dgram_connect,
+ .disconnect = dgram_disconnect,
+ .ioctl = dgram_ioctl,
+};
+
diff --git a/net/ieee802154/netlink.c b/net/ieee802154/netlink.c
new file mode 100644
index 00000000000..105ad10876a
--- /dev/null
+++ b/net/ieee802154/netlink.c
@@ -0,0 +1,523 @@
+/*
+ * Netlink inteface for IEEE 802.15.4 stack
+ *
+ * Copyright 2007, 2008 Siemens AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Written by:
+ * Sergey Lapin <slapin@ossfans.org>
+ * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/if_arp.h>
+#include <linux/netdevice.h>
+#include <net/netlink.h>
+#include <net/genetlink.h>
+#include <linux/nl802154.h>
+#include <net/ieee802154/af_ieee802154.h>
+#include <net/ieee802154/nl802154.h>
+#include <net/ieee802154/netdevice.h>
+
+static unsigned int ieee802154_seq_num;
+
+static struct genl_family ieee802154_coordinator_family = {
+ .id = GENL_ID_GENERATE,
+ .hdrsize = 0,
+ .name = IEEE802154_NL_NAME,
+ .version = 1,
+ .maxattr = IEEE802154_ATTR_MAX,
+};
+
+static struct genl_multicast_group ieee802154_coord_mcgrp = {
+ .name = IEEE802154_MCAST_COORD_NAME,
+};
+
+static struct genl_multicast_group ieee802154_beacon_mcgrp = {
+ .name = IEEE802154_MCAST_BEACON_NAME,
+};
+
+/* Requests to userspace */
+static struct sk_buff *ieee802154_nl_create(int flags, u8 req)
+{
+ void *hdr;
+ struct sk_buff *msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
+
+ if (!msg)
+ return NULL;
+
+ hdr = genlmsg_put(msg, 0, ieee802154_seq_num++,
+ &ieee802154_coordinator_family, flags, req);
+ if (!hdr) {
+ nlmsg_free(msg);
+ return NULL;
+ }
+
+ return msg;
+}
+
+static int ieee802154_nl_finish(struct sk_buff *msg)
+{
+ /* XXX: nlh is right at the start of msg */
+ void *hdr = genlmsg_data(NLMSG_DATA(msg->data));
+
+ if (!genlmsg_end(msg, hdr))
+ goto out;
+
+ return genlmsg_multicast(msg, 0, ieee802154_coord_mcgrp.id,
+ GFP_ATOMIC);
+out:
+ nlmsg_free(msg);
+ return -ENOBUFS;
+}
+
+int ieee802154_nl_assoc_indic(struct net_device *dev,
+ struct ieee802154_addr *addr, u8 cap)
+{
+ struct sk_buff *msg;
+
+ pr_debug("%s\n", __func__);
+
+ if (addr->addr_type != IEEE802154_ADDR_LONG) {
+ pr_err("%s: received non-long source address!\n", __func__);
+ return -EINVAL;
+ }
+
+ msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_INDIC);
+ if (!msg)
+ return -ENOBUFS;
+
+ NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
+ NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
+ NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
+ dev->dev_addr);
+
+ NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN,
+ addr->hwaddr);
+
+ NLA_PUT_U8(msg, IEEE802154_ATTR_CAPABILITY, cap);
+
+ return ieee802154_nl_finish(msg);
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return -ENOBUFS;
+}
+EXPORT_SYMBOL(ieee802154_nl_assoc_indic);
+
+int ieee802154_nl_assoc_confirm(struct net_device *dev, u16 short_addr,
+ u8 status)
+{
+ struct sk_buff *msg;
+
+ pr_debug("%s\n", __func__);
+
+ msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_CONF);
+ if (!msg)
+ return -ENOBUFS;
+
+ NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
+ NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
+ NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
+ dev->dev_addr);
+
+ NLA_PUT_U16(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr);
+ NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status);
+
+ return ieee802154_nl_finish(msg);
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return -ENOBUFS;
+}
+EXPORT_SYMBOL(ieee802154_nl_assoc_confirm);
+
+int ieee802154_nl_disassoc_indic(struct net_device *dev,
+ struct ieee802154_addr *addr, u8 reason)
+{
+ struct sk_buff *msg;
+
+ pr_debug("%s\n", __func__);
+
+ msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_INDIC);
+ if (!msg)
+ return -ENOBUFS;
+
+ NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
+ NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
+ NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
+ dev->dev_addr);
+
+ if (addr->addr_type == IEEE802154_ADDR_LONG)
+ NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN,
+ addr->hwaddr);
+ else
+ NLA_PUT_U16(msg, IEEE802154_ATTR_SRC_SHORT_ADDR,
+ addr->short_addr);
+
+ NLA_PUT_U8(msg, IEEE802154_ATTR_REASON, reason);
+
+ return ieee802154_nl_finish(msg);
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return -ENOBUFS;
+}
+EXPORT_SYMBOL(ieee802154_nl_disassoc_indic);
+
+int ieee802154_nl_disassoc_confirm(struct net_device *dev, u8 status)
+{
+ struct sk_buff *msg;
+
+ pr_debug("%s\n", __func__);
+
+ msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_CONF);
+ if (!msg)
+ return -ENOBUFS;
+
+ NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
+ NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
+ NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
+ dev->dev_addr);
+
+ NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status);
+
+ return ieee802154_nl_finish(msg);
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return -ENOBUFS;
+}
+EXPORT_SYMBOL(ieee802154_nl_disassoc_confirm);
+
+int ieee802154_nl_beacon_indic(struct net_device *dev,
+ u16 panid, u16 coord_addr)
+{
+ struct sk_buff *msg;
+
+ pr_debug("%s\n", __func__);
+
+ msg = ieee802154_nl_create(0, IEEE802154_BEACON_NOTIFY_INDIC);
+ if (!msg)
+ return -ENOBUFS;
+
+ NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
+ NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
+ NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
+ dev->dev_addr);
+ NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_SHORT_ADDR, coord_addr);
+ NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_PAN_ID, panid);
+
+ return ieee802154_nl_finish(msg);
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return -ENOBUFS;
+}
+EXPORT_SYMBOL(ieee802154_nl_beacon_indic);
+
+int ieee802154_nl_scan_confirm(struct net_device *dev,
+ u8 status, u8 scan_type, u32 unscanned,
+ u8 *edl/* , struct list_head *pan_desc_list */)
+{
+ struct sk_buff *msg;
+
+ pr_debug("%s\n", __func__);
+
+ msg = ieee802154_nl_create(0, IEEE802154_SCAN_CONF);
+ if (!msg)
+ return -ENOBUFS;
+
+ NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
+ NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
+ NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
+ dev->dev_addr);
+
+ NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status);
+ NLA_PUT_U8(msg, IEEE802154_ATTR_SCAN_TYPE, scan_type);
+ NLA_PUT_U32(msg, IEEE802154_ATTR_CHANNELS, unscanned);
+
+ if (edl)
+ NLA_PUT(msg, IEEE802154_ATTR_ED_LIST, 27, edl);
+
+ return ieee802154_nl_finish(msg);
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return -ENOBUFS;
+}
+EXPORT_SYMBOL(ieee802154_nl_scan_confirm);
+
+/* Requests from userspace */
+static struct net_device *ieee802154_nl_get_dev(struct genl_info *info)
+{
+ struct net_device *dev;
+
+ if (info->attrs[IEEE802154_ATTR_DEV_NAME]) {
+ char name[IFNAMSIZ + 1];
+ nla_strlcpy(name, info->attrs[IEEE802154_ATTR_DEV_NAME],
+ sizeof(name));
+ dev = dev_get_by_name(&init_net, name);
+ } else if (info->attrs[IEEE802154_ATTR_DEV_INDEX])
+ dev = dev_get_by_index(&init_net,
+ nla_get_u32(info->attrs[IEEE802154_ATTR_DEV_INDEX]));
+ else
+ return NULL;
+
+ if (dev->type != ARPHRD_IEEE802154) {
+ dev_put(dev);
+ return NULL;
+ }
+
+ return dev;
+}
+
+static int ieee802154_associate_req(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct net_device *dev;
+ struct ieee802154_addr addr;
+ int ret = -EINVAL;
+
+ if (!info->attrs[IEEE802154_ATTR_CHANNEL] ||
+ !info->attrs[IEEE802154_ATTR_COORD_PAN_ID] ||
+ (!info->attrs[IEEE802154_ATTR_COORD_HW_ADDR] &&
+ !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]) ||
+ !info->attrs[IEEE802154_ATTR_CAPABILITY])
+ return -EINVAL;
+
+ dev = ieee802154_nl_get_dev(info);
+ if (!dev)
+ return -ENODEV;
+
+ if (info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]) {
+ addr.addr_type = IEEE802154_ADDR_LONG;
+ nla_memcpy(addr.hwaddr,
+ info->attrs[IEEE802154_ATTR_COORD_HW_ADDR],
+ IEEE802154_ADDR_LEN);
+ } else {
+ addr.addr_type = IEEE802154_ADDR_SHORT;
+ addr.short_addr = nla_get_u16(
+ info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]);
+ }
+ addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]);
+
+ ret = ieee802154_mlme_ops(dev)->assoc_req(dev, &addr,
+ nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]),
+ nla_get_u8(info->attrs[IEEE802154_ATTR_CAPABILITY]));
+
+ dev_put(dev);
+ return ret;
+}
+
+static int ieee802154_associate_resp(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct net_device *dev;
+ struct ieee802154_addr addr;
+ int ret = -EINVAL;
+
+ if (!info->attrs[IEEE802154_ATTR_STATUS] ||
+ !info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] ||
+ !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR])
+ return -EINVAL;
+
+ dev = ieee802154_nl_get_dev(info);
+ if (!dev)
+ return -ENODEV;
+
+ addr.addr_type = IEEE802154_ADDR_LONG;
+ nla_memcpy(addr.hwaddr, info->attrs[IEEE802154_ATTR_DEST_HW_ADDR],
+ IEEE802154_ADDR_LEN);
+ addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
+
+
+ ret = ieee802154_mlme_ops(dev)->assoc_resp(dev, &addr,
+ nla_get_u16(info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]),
+ nla_get_u8(info->attrs[IEEE802154_ATTR_STATUS]));
+
+ dev_put(dev);
+ return ret;
+}
+
+static int ieee802154_disassociate_req(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct net_device *dev;
+ struct ieee802154_addr addr;
+ int ret = -EINVAL;
+
+ if ((!info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] &&
+ !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) ||
+ !info->attrs[IEEE802154_ATTR_REASON])
+ return -EINVAL;
+
+ dev = ieee802154_nl_get_dev(info);
+ if (!dev)
+ return -ENODEV;
+
+ if (info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]) {
+ addr.addr_type = IEEE802154_ADDR_LONG;
+ nla_memcpy(addr.hwaddr,
+ info->attrs[IEEE802154_ATTR_DEST_HW_ADDR],
+ IEEE802154_ADDR_LEN);
+ } else {
+ addr.addr_type = IEEE802154_ADDR_SHORT;
+ addr.short_addr = nla_get_u16(
+ info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]);
+ }
+ addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
+
+ ret = ieee802154_mlme_ops(dev)->disassoc_req(dev, &addr,
+ nla_get_u8(info->attrs[IEEE802154_ATTR_REASON]));
+
+ dev_put(dev);
+ return ret;
+}
+
+/*
+ * PANid, channel, beacon_order = 15, superframe_order = 15,
+ * PAN_coordinator, battery_life_extension = 0,
+ * coord_realignment = 0, security_enable = 0
+*/
+static int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info)
+{
+ struct net_device *dev;
+ struct ieee802154_addr addr;
+
+ u8 channel, bcn_ord, sf_ord;
+ int pan_coord, blx, coord_realign;
+ int ret;
+
+ if (!info->attrs[IEEE802154_ATTR_COORD_PAN_ID] ||
+ !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR] ||
+ !info->attrs[IEEE802154_ATTR_CHANNEL] ||
+ !info->attrs[IEEE802154_ATTR_BCN_ORD] ||
+ !info->attrs[IEEE802154_ATTR_SF_ORD] ||
+ !info->attrs[IEEE802154_ATTR_PAN_COORD] ||
+ !info->attrs[IEEE802154_ATTR_BAT_EXT] ||
+ !info->attrs[IEEE802154_ATTR_COORD_REALIGN]
+ )
+ return -EINVAL;
+
+ dev = ieee802154_nl_get_dev(info);
+ if (!dev)
+ return -ENODEV;
+
+ addr.addr_type = IEEE802154_ADDR_SHORT;
+ addr.short_addr = nla_get_u16(
+ info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]);
+ addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]);
+
+ channel = nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]);
+ bcn_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_BCN_ORD]);
+ sf_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_SF_ORD]);
+ pan_coord = nla_get_u8(info->attrs[IEEE802154_ATTR_PAN_COORD]);
+ blx = nla_get_u8(info->attrs[IEEE802154_ATTR_BAT_EXT]);
+ coord_realign = nla_get_u8(info->attrs[IEEE802154_ATTR_COORD_REALIGN]);
+
+ ret = ieee802154_mlme_ops(dev)->start_req(dev, &addr, channel,
+ bcn_ord, sf_ord, pan_coord, blx, coord_realign);
+
+ dev_put(dev);
+ return ret;
+}
+
+static int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info)
+{
+ struct net_device *dev;
+ int ret;
+ u8 type;
+ u32 channels;
+ u8 duration;
+
+ if (!info->attrs[IEEE802154_ATTR_SCAN_TYPE] ||
+ !info->attrs[IEEE802154_ATTR_CHANNELS] ||
+ !info->attrs[IEEE802154_ATTR_DURATION])
+ return -EINVAL;
+
+ dev = ieee802154_nl_get_dev(info);
+ if (!dev)
+ return -ENODEV;
+
+ type = nla_get_u8(info->attrs[IEEE802154_ATTR_SCAN_TYPE]);
+ channels = nla_get_u32(info->attrs[IEEE802154_ATTR_CHANNELS]);
+ duration = nla_get_u8(info->attrs[IEEE802154_ATTR_DURATION]);
+
+ ret = ieee802154_mlme_ops(dev)->scan_req(dev, type, channels,
+ duration);
+
+ dev_put(dev);
+ return ret;
+}
+
+#define IEEE802154_OP(_cmd, _func) \
+ { \
+ .cmd = _cmd, \
+ .policy = ieee802154_policy, \
+ .doit = _func, \
+ .dumpit = NULL, \
+ .flags = GENL_ADMIN_PERM, \
+ }
+
+static struct genl_ops ieee802154_coordinator_ops[] = {
+ IEEE802154_OP(IEEE802154_ASSOCIATE_REQ, ieee802154_associate_req),
+ IEEE802154_OP(IEEE802154_ASSOCIATE_RESP, ieee802154_associate_resp),
+ IEEE802154_OP(IEEE802154_DISASSOCIATE_REQ, ieee802154_disassociate_req),
+ IEEE802154_OP(IEEE802154_SCAN_REQ, ieee802154_scan_req),
+ IEEE802154_OP(IEEE802154_START_REQ, ieee802154_start_req),
+};
+
+static int __init ieee802154_nl_init(void)
+{
+ int rc;
+ int i;
+
+ rc = genl_register_family(&ieee802154_coordinator_family);
+ if (rc)
+ goto fail;
+
+ rc = genl_register_mc_group(&ieee802154_coordinator_family,
+ &ieee802154_coord_mcgrp);
+ if (rc)
+ goto fail;
+
+ rc = genl_register_mc_group(&ieee802154_coordinator_family,
+ &ieee802154_beacon_mcgrp);
+ if (rc)
+ goto fail;
+
+
+ for (i = 0; i < ARRAY_SIZE(ieee802154_coordinator_ops); i++) {
+ rc = genl_register_ops(&ieee802154_coordinator_family,
+ &ieee802154_coordinator_ops[i]);
+ if (rc)
+ goto fail;
+ }
+
+ return 0;
+
+fail:
+ genl_unregister_family(&ieee802154_coordinator_family);
+ return rc;
+}
+module_init(ieee802154_nl_init);
+
+static void __exit ieee802154_nl_exit(void)
+{
+ genl_unregister_family(&ieee802154_coordinator_family);
+}
+module_exit(ieee802154_nl_exit);
+
diff --git a/net/ieee802154/nl_policy.c b/net/ieee802154/nl_policy.c
new file mode 100644
index 00000000000..c7d71d1adca
--- /dev/null
+++ b/net/ieee802154/nl_policy.c
@@ -0,0 +1,52 @@
+/*
+ * nl802154.h
+ *
+ * Copyright (C) 2007, 2008 Siemens AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <net/netlink.h>
+#include <linux/nl802154.h>
+
+#define NLA_HW_ADDR NLA_U64
+
+struct nla_policy ieee802154_policy[IEEE802154_ATTR_MAX + 1] = {
+ [IEEE802154_ATTR_DEV_NAME] = { .type = NLA_STRING, },
+ [IEEE802154_ATTR_DEV_INDEX] = { .type = NLA_U32, },
+
+ [IEEE802154_ATTR_STATUS] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_SHORT_ADDR] = { .type = NLA_U16, },
+ [IEEE802154_ATTR_HW_ADDR] = { .type = NLA_HW_ADDR, },
+ [IEEE802154_ATTR_PAN_ID] = { .type = NLA_U16, },
+ [IEEE802154_ATTR_CHANNEL] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_COORD_SHORT_ADDR] = { .type = NLA_U16, },
+ [IEEE802154_ATTR_COORD_HW_ADDR] = { .type = NLA_HW_ADDR, },
+ [IEEE802154_ATTR_COORD_PAN_ID] = { .type = NLA_U16, },
+ [IEEE802154_ATTR_SRC_SHORT_ADDR] = { .type = NLA_U16, },
+ [IEEE802154_ATTR_SRC_HW_ADDR] = { .type = NLA_HW_ADDR, },
+ [IEEE802154_ATTR_SRC_PAN_ID] = { .type = NLA_U16, },
+ [IEEE802154_ATTR_DEST_SHORT_ADDR] = { .type = NLA_U16, },
+ [IEEE802154_ATTR_DEST_HW_ADDR] = { .type = NLA_HW_ADDR, },
+ [IEEE802154_ATTR_DEST_PAN_ID] = { .type = NLA_U16, },
+
+ [IEEE802154_ATTR_CAPABILITY] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_REASON] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_SCAN_TYPE] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_CHANNELS] = { .type = NLA_U32, },
+ [IEEE802154_ATTR_DURATION] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_ED_LIST] = { .len = 27 },
+};
diff --git a/net/ieee802154/raw.c b/net/ieee802154/raw.c
new file mode 100644
index 00000000000..fca44d59f97
--- /dev/null
+++ b/net/ieee802154/raw.c
@@ -0,0 +1,254 @@
+/*
+ * Raw IEEE 802.15.4 sockets
+ *
+ * Copyright 2007, 2008 Siemens AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Written by:
+ * Sergey Lapin <slapin@ossfans.org>
+ * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+ */
+
+#include <linux/net.h>
+#include <linux/module.h>
+#include <linux/if_arp.h>
+#include <linux/list.h>
+#include <net/sock.h>
+#include <net/ieee802154/af_ieee802154.h>
+
+#include "af802154.h"
+
+static HLIST_HEAD(raw_head);
+static DEFINE_RWLOCK(raw_lock);
+
+static void raw_hash(struct sock *sk)
+{
+ write_lock_bh(&raw_lock);
+ sk_add_node(sk, &raw_head);
+ sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
+ write_unlock_bh(&raw_lock);
+}
+
+static void raw_unhash(struct sock *sk)
+{
+ write_lock_bh(&raw_lock);
+ if (sk_del_node_init(sk))
+ sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
+ write_unlock_bh(&raw_lock);
+}
+
+static void raw_close(struct sock *sk, long timeout)
+{
+ sk_common_release(sk);
+}
+
+static int raw_bind(struct sock *sk, struct sockaddr *uaddr, int len)
+{
+ struct sockaddr_ieee802154 *addr = (struct sockaddr_ieee802154 *)uaddr;
+ int err = 0;
+ struct net_device *dev = NULL;
+
+ if (len < sizeof(*addr))
+ return -EINVAL;
+
+ if (addr->family != AF_IEEE802154)
+ return -EINVAL;
+
+ lock_sock(sk);
+
+ dev = ieee802154_get_dev(sock_net(sk), &addr->addr);
+ if (!dev) {
+ err = -ENODEV;
+ goto out;
+ }
+
+ if (dev->type != ARPHRD_IEEE802154_PHY &&
+ dev->type != ARPHRD_IEEE802154) {
+ err = -ENODEV;
+ goto out_put;
+ }
+
+ sk->sk_bound_dev_if = dev->ifindex;
+ sk_dst_reset(sk);
+
+out_put:
+ dev_put(dev);
+out:
+ release_sock(sk);
+
+ return err;
+}
+
+static int raw_connect(struct sock *sk, struct sockaddr *uaddr,
+ int addr_len)
+{
+ return -ENOTSUPP;
+}
+
+static int raw_disconnect(struct sock *sk, int flags)
+{
+ return 0;
+}
+
+static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+ size_t size)
+{
+ struct net_device *dev;
+ unsigned mtu;
+ struct sk_buff *skb;
+ int err;
+
+ if (msg->msg_flags & MSG_OOB) {
+ pr_debug("msg->msg_flags = 0x%x\n", msg->msg_flags);
+ return -EOPNOTSUPP;
+ }
+
+ lock_sock(sk);
+ if (!sk->sk_bound_dev_if)
+ dev = dev_getfirstbyhwtype(sock_net(sk), ARPHRD_IEEE802154);
+ else
+ dev = dev_get_by_index(sock_net(sk), sk->sk_bound_dev_if);
+ release_sock(sk);
+
+ if (!dev) {
+ pr_debug("no dev\n");
+ err = -ENXIO;
+ goto out;
+ }
+
+ mtu = dev->mtu;
+ pr_debug("name = %s, mtu = %u\n", dev->name, mtu);
+
+ if (size > mtu) {
+ pr_debug("size = %Zu, mtu = %u\n", size, mtu);
+ err = -EINVAL;
+ goto out_dev;
+ }
+
+ skb = sock_alloc_send_skb(sk, LL_ALLOCATED_SPACE(dev) + size,
+ msg->msg_flags & MSG_DONTWAIT, &err);
+ if (!skb)
+ goto out_dev;
+
+ skb_reserve(skb, LL_RESERVED_SPACE(dev));
+
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
+
+ err = memcpy_fromiovec(skb_put(skb, size), msg->msg_iov, size);
+ if (err < 0)
+ goto out_skb;
+
+ skb->dev = dev;
+ skb->sk = sk;
+ skb->protocol = htons(ETH_P_IEEE802154);
+
+ dev_put(dev);
+
+ err = dev_queue_xmit(skb);
+ if (err > 0)
+ err = net_xmit_errno(err);
+
+ return err ?: size;
+
+out_skb:
+ kfree_skb(skb);
+out_dev:
+ dev_put(dev);
+out:
+ return err;
+}
+
+static int raw_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+ size_t len, int noblock, int flags, int *addr_len)
+{
+ size_t copied = 0;
+ int err = -EOPNOTSUPP;
+ struct sk_buff *skb;
+
+ skb = skb_recv_datagram(sk, flags, noblock, &err);
+ if (!skb)
+ goto out;
+
+ copied = skb->len;
+ if (len < copied) {
+ msg->msg_flags |= MSG_TRUNC;
+ copied = len;
+ }
+
+ err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
+ if (err)
+ goto done;
+
+ sock_recv_timestamp(msg, sk, skb);
+
+ if (flags & MSG_TRUNC)
+ copied = skb->len;
+done:
+ skb_free_datagram(sk, skb);
+out:
+ if (err)
+ return err;
+ return copied;
+}
+
+static int raw_rcv_skb(struct sock *sk, struct sk_buff *skb)
+{
+ if (sock_queue_rcv_skb(sk, skb) < 0) {
+ atomic_inc(&sk->sk_drops);
+ kfree_skb(skb);
+ return NET_RX_DROP;
+ }
+
+ return NET_RX_SUCCESS;
+}
+
+
+void ieee802154_raw_deliver(struct net_device *dev, struct sk_buff *skb)
+{
+ struct sock *sk;
+ struct hlist_node *node;
+
+ read_lock(&raw_lock);
+ sk_for_each(sk, node, &raw_head) {
+ bh_lock_sock(sk);
+ if (!sk->sk_bound_dev_if ||
+ sk->sk_bound_dev_if == dev->ifindex) {
+
+ struct sk_buff *clone;
+
+ clone = skb_clone(skb, GFP_ATOMIC);
+ if (clone)
+ raw_rcv_skb(sk, clone);
+ }
+ bh_unlock_sock(sk);
+ }
+ read_unlock(&raw_lock);
+}
+
+struct proto ieee802154_raw_prot = {
+ .name = "IEEE-802.15.4-RAW",
+ .owner = THIS_MODULE,
+ .obj_size = sizeof(struct sock),
+ .close = raw_close,
+ .bind = raw_bind,
+ .sendmsg = raw_sendmsg,
+ .recvmsg = raw_recvmsg,
+ .hash = raw_hash,
+ .unhash = raw_unhash,
+ .connect = raw_connect,
+ .disconnect = raw_disconnect,
+};
+
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 5abee4c9744..566ea6c4321 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -116,7 +116,6 @@
#include <linux/mroute.h>
#endif
-extern void ip_mc_drop_socket(struct sock *sk);
/* The inetsw table contains everything that inet_create needs to
* build a new socket.
@@ -375,6 +374,7 @@ lookup_protocol:
inet->uc_ttl = -1;
inet->mc_loop = 1;
inet->mc_ttl = 1;
+ inet->mc_all = 1;
inet->mc_index = 0;
inet->mc_list = NULL;
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index f11931c1838..8a3881e28ac 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -468,13 +468,13 @@ int arp_find(unsigned char *haddr, struct sk_buff *skb)
__be32 paddr;
struct neighbour *n;
- if (!skb->dst) {
+ if (!skb_dst(skb)) {
printk(KERN_DEBUG "arp_find is called with dst==NULL\n");
kfree_skb(skb);
return 1;
}
- paddr = skb->rtable->rt_gateway;
+ paddr = skb_rtable(skb)->rt_gateway;
if (arp_set_predefined(inet_addr_type(dev_net(dev), paddr), haddr, paddr, dev))
return 0;
@@ -817,7 +817,7 @@ static int arp_process(struct sk_buff *skb)
if (arp->ar_op == htons(ARPOP_REQUEST) &&
ip_route_input(skb, tip, sip, 0, dev) == 0) {
- rt = skb->rtable;
+ rt = skb_rtable(skb);
addr_type = rt->rt_type;
if (addr_type == RTN_LOCAL) {
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 3f50807237e..97c410e8438 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -356,7 +356,7 @@ static void icmp_push_reply(struct icmp_bxm *icmp_param,
static void icmp_reply(struct icmp_bxm *icmp_param, struct sk_buff *skb)
{
struct ipcm_cookie ipc;
- struct rtable *rt = skb->rtable;
+ struct rtable *rt = skb_rtable(skb);
struct net *net = dev_net(rt->u.dst.dev);
struct sock *sk;
struct inet_sock *inet;
@@ -416,7 +416,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
struct iphdr *iph;
int room;
struct icmp_bxm icmp_param;
- struct rtable *rt = skb_in->rtable;
+ struct rtable *rt = skb_rtable(skb_in);
struct ipcm_cookie ipc;
__be32 saddr;
u8 tos;
@@ -591,13 +591,13 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
goto relookup_failed;
/* Ugh! */
- odst = skb_in->dst;
+ odst = skb_dst(skb_in);
err = ip_route_input(skb_in, fl.fl4_dst, fl.fl4_src,
RT_TOS(tos), rt2->u.dst.dev);
dst_release(&rt2->u.dst);
- rt2 = skb_in->rtable;
- skb_in->dst = odst;
+ rt2 = skb_rtable(skb_in);
+ skb_dst_set(skb_in, odst);
}
if (err)
@@ -659,7 +659,7 @@ static void icmp_unreach(struct sk_buff *skb)
u32 info = 0;
struct net *net;
- net = dev_net(skb->dst->dev);
+ net = dev_net(skb_dst(skb)->dev);
/*
* Incomplete header ?
@@ -822,7 +822,7 @@ static void icmp_echo(struct sk_buff *skb)
{
struct net *net;
- net = dev_net(skb->dst->dev);
+ net = dev_net(skb_dst(skb)->dev);
if (!net->ipv4.sysctl_icmp_echo_ignore_all) {
struct icmp_bxm icmp_param;
@@ -873,7 +873,7 @@ static void icmp_timestamp(struct sk_buff *skb)
out:
return;
out_err:
- ICMP_INC_STATS_BH(dev_net(skb->dst->dev), ICMP_MIB_INERRORS);
+ ICMP_INC_STATS_BH(dev_net(skb_dst(skb)->dev), ICMP_MIB_INERRORS);
goto out;
}
@@ -926,7 +926,7 @@ static void icmp_address(struct sk_buff *skb)
static void icmp_address_reply(struct sk_buff *skb)
{
- struct rtable *rt = skb->rtable;
+ struct rtable *rt = skb_rtable(skb);
struct net_device *dev = skb->dev;
struct in_device *in_dev;
struct in_ifaddr *ifa;
@@ -970,7 +970,7 @@ static void icmp_discard(struct sk_buff *skb)
int icmp_rcv(struct sk_buff *skb)
{
struct icmphdr *icmph;
- struct rtable *rt = skb->rtable;
+ struct rtable *rt = skb_rtable(skb);
struct net *net = dev_net(rt->u.dst.dev);
if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb)) {
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 9eb6219af61..01b4284ed69 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -311,7 +311,7 @@ static struct sk_buff *igmpv3_newpack(struct net_device *dev, int size)
return NULL;
}
- skb->dst = &rt->u.dst;
+ skb_dst_set(skb, &rt->u.dst);
skb->dev = dev;
skb_reserve(skb, LL_RESERVED_SPACE(dev));
@@ -659,7 +659,7 @@ static int igmp_send_report(struct in_device *in_dev, struct ip_mc_list *pmc,
return -1;
}
- skb->dst = &rt->u.dst;
+ skb_dst_set(skb, &rt->u.dst);
skb_reserve(skb, LL_RESERVED_SPACE(dev));
@@ -948,7 +948,7 @@ int igmp_rcv(struct sk_buff *skb)
case IGMPV2_HOST_MEMBERSHIP_REPORT:
case IGMPV3_HOST_MEMBERSHIP_REPORT:
/* Is it our report looped back? */
- if (skb->rtable->fl.iif == 0)
+ if (skb_rtable(skb)->fl.iif == 0)
break;
/* don't rely on MC router hearing unicast reports */
if (skb->pkt_type == PACKET_MULTICAST ||
@@ -2196,7 +2196,7 @@ int ip_mc_sf_allow(struct sock *sk, __be32 loc_addr, __be32 rmt_addr, int dif)
break;
}
if (!pmc)
- return 1;
+ return inet->mc_all;
psl = pmc->sflist;
if (!psl)
return pmc->sfmode == MCAST_EXCLUDE;
diff --git a/net/ipv4/ip_forward.c b/net/ipv4/ip_forward.c
index df3fe50bbf0..a2991bc8e32 100644
--- a/net/ipv4/ip_forward.c
+++ b/net/ipv4/ip_forward.c
@@ -42,7 +42,7 @@ static int ip_forward_finish(struct sk_buff *skb)
{
struct ip_options * opt = &(IPCB(skb)->opt);
- IP_INC_STATS_BH(dev_net(skb->dst->dev), IPSTATS_MIB_OUTFORWDATAGRAMS);
+ IP_INC_STATS_BH(dev_net(skb_dst(skb)->dev), IPSTATS_MIB_OUTFORWDATAGRAMS);
if (unlikely(opt->optlen))
ip_forward_options(skb);
@@ -81,7 +81,7 @@ int ip_forward(struct sk_buff *skb)
if (!xfrm4_route_forward(skb))
goto drop;
- rt = skb->rtable;
+ rt = skb_rtable(skb);
if (opt->is_strictroute && rt->rt_dst != rt->rt_gateway)
goto sr_failed;
@@ -123,7 +123,7 @@ sr_failed:
too_many_hops:
/* Tell the sender its packet died... */
- IP_INC_STATS_BH(dev_net(skb->dst->dev), IPSTATS_MIB_INHDRERRORS);
+ IP_INC_STATS_BH(dev_net(skb_dst(skb)->dev), IPSTATS_MIB_INHDRERRORS);
icmp_send(skb, ICMP_TIME_EXCEEDED, ICMP_EXC_TTL, 0);
drop:
kfree_skb(skb);
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 7985346653b..575f9bd51cc 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -507,7 +507,7 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *prev,
/* If the first fragment is fragmented itself, we split
* it to two chunks: the first with data and paged part
* and the second, holding only fragments. */
- if (skb_shinfo(head)->frag_list) {
+ if (skb_has_frags(head)) {
struct sk_buff *clone;
int i, plen = 0;
@@ -516,7 +516,7 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *prev,
clone->next = head->next;
head->next = clone;
skb_shinfo(clone)->frag_list = skb_shinfo(head)->frag_list;
- skb_shinfo(head)->frag_list = NULL;
+ skb_frag_list_init(head);
for (i=0; i<skb_shinfo(head)->nr_frags; i++)
plen += skb_shinfo(head)->frags[i].size;
clone->len = clone->data_len = head->data_len - plen;
@@ -573,7 +573,7 @@ int ip_defrag(struct sk_buff *skb, u32 user)
struct ipq *qp;
struct net *net;
- net = skb->dev ? dev_net(skb->dev) : dev_net(skb->dst->dev);
+ net = skb->dev ? dev_net(skb->dev) : dev_net(skb_dst(skb)->dev);
IP_INC_STATS_BH(net, IPSTATS_MIB_REASMREQDS);
/* Start by cleaning up the memory. */
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index e62510d5ea5..44e2a3d2359 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -602,7 +602,7 @@ static int ipgre_rcv(struct sk_buff *skb)
#ifdef CONFIG_NET_IPGRE_BROADCAST
if (ipv4_is_multicast(iph->daddr)) {
/* Looped back packet, drop it! */
- if (skb->rtable->fl.iif == 0)
+ if (skb_rtable(skb)->fl.iif == 0)
goto drop;
stats->multicast++;
skb->pkt_type = PACKET_BROADCAST;
@@ -643,8 +643,7 @@ static int ipgre_rcv(struct sk_buff *skb)
stats->rx_packets++;
stats->rx_bytes += len;
skb->dev = tunnel->dev;
- dst_release(skb->dst);
- skb->dst = NULL;
+ skb_dst_drop(skb);
nf_reset(skb);
skb_reset_network_header(skb);
@@ -698,13 +697,13 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
if ((dst = tiph->daddr) == 0) {
/* NBMA tunnel */
- if (skb->dst == NULL) {
+ if (skb_dst(skb) == NULL) {
stats->tx_fifo_errors++;
goto tx_error;
}
if (skb->protocol == htons(ETH_P_IP)) {
- rt = skb->rtable;
+ rt = skb_rtable(skb);
if ((dst = rt->rt_gateway) == 0)
goto tx_error_icmp;
}
@@ -712,7 +711,7 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
else if (skb->protocol == htons(ETH_P_IPV6)) {
struct in6_addr *addr6;
int addr_type;
- struct neighbour *neigh = skb->dst->neighbour;
+ struct neighbour *neigh = skb_dst(skb)->neighbour;
if (neigh == NULL)
goto tx_error;
@@ -766,10 +765,10 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
if (df)
mtu = dst_mtu(&rt->u.dst) - dev->hard_header_len - tunnel->hlen;
else
- mtu = skb->dst ? dst_mtu(skb->dst) : dev->mtu;
+ mtu = skb_dst(skb) ? dst_mtu(skb_dst(skb)) : dev->mtu;
- if (skb->dst)
- skb->dst->ops->update_pmtu(skb->dst, mtu);
+ if (skb_dst(skb))
+ skb_dst(skb)->ops->update_pmtu(skb_dst(skb), mtu);
if (skb->protocol == htons(ETH_P_IP)) {
df |= (old_iph->frag_off&htons(IP_DF));
@@ -783,14 +782,14 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
}
#ifdef CONFIG_IPV6
else if (skb->protocol == htons(ETH_P_IPV6)) {
- struct rt6_info *rt6 = (struct rt6_info *)skb->dst;
+ struct rt6_info *rt6 = (struct rt6_info *)skb_dst(skb);
- if (rt6 && mtu < dst_mtu(skb->dst) && mtu >= IPV6_MIN_MTU) {
+ if (rt6 && mtu < dst_mtu(skb_dst(skb)) && mtu >= IPV6_MIN_MTU) {
if ((tunnel->parms.iph.daddr &&
!ipv4_is_multicast(tunnel->parms.iph.daddr)) ||
rt6->rt6i_dst.plen == 128) {
rt6->rt6i_flags |= RTF_MODIFIED;
- skb->dst->metrics[RTAX_MTU-1] = mtu;
+ skb_dst(skb)->metrics[RTAX_MTU-1] = mtu;
}
}
@@ -837,8 +836,8 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
IPCB(skb)->flags &= ~(IPSKB_XFRM_TUNNEL_SIZE | IPSKB_XFRM_TRANSFORMED |
IPSKB_REROUTED);
- dst_release(skb->dst);
- skb->dst = &rt->u.dst;
+ skb_dst_drop(skb);
+ skb_dst_set(skb, &rt->u.dst);
/*
* Push down and install the IPIP header.
@@ -1238,6 +1237,7 @@ static void ipgre_tunnel_setup(struct net_device *dev)
dev->iflink = 0;
dev->addr_len = 4;
dev->features |= NETIF_F_NETNS_LOCAL;
+ dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
}
static int ipgre_tunnel_init(struct net_device *dev)
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index 40f6206b2aa..490ce20faf3 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -329,7 +329,7 @@ static int ip_rcv_finish(struct sk_buff *skb)
* Initialise the virtual path cache for the packet. It describes
* how the packet travels inside Linux networking.
*/
- if (skb->dst == NULL) {
+ if (skb_dst(skb) == NULL) {
int err = ip_route_input(skb, iph->daddr, iph->saddr, iph->tos,
skb->dev);
if (unlikely(err)) {
@@ -344,9 +344,9 @@ static int ip_rcv_finish(struct sk_buff *skb)
}
#ifdef CONFIG_NET_CLS_ROUTE
- if (unlikely(skb->dst->tclassid)) {
+ if (unlikely(skb_dst(skb)->tclassid)) {
struct ip_rt_acct *st = per_cpu_ptr(ip_rt_acct, smp_processor_id());
- u32 idx = skb->dst->tclassid;
+ u32 idx = skb_dst(skb)->tclassid;
st[idx&0xFF].o_packets++;
st[idx&0xFF].o_bytes += skb->len;
st[(idx>>16)&0xFF].i_packets++;
@@ -357,7 +357,7 @@ static int ip_rcv_finish(struct sk_buff *skb)
if (iph->ihl > 5 && ip_rcv_options(skb))
goto drop;
- rt = skb->rtable;
+ rt = skb_rtable(skb);
if (rt->rt_type == RTN_MULTICAST) {
IP_UPD_PO_STATS_BH(dev_net(rt->u.dst.dev), IPSTATS_MIB_INMCAST,
skb->len);
diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c
index 2c88da6e786..94bf105ef3c 100644
--- a/net/ipv4/ip_options.c
+++ b/net/ipv4/ip_options.c
@@ -102,7 +102,7 @@ int ip_options_echo(struct ip_options * dopt, struct sk_buff * skb)
sptr = skb_network_header(skb);
dptr = dopt->__data;
- daddr = skb->rtable->rt_spec_dst;
+ daddr = skb_rtable(skb)->rt_spec_dst;
if (sopt->rr) {
optlen = sptr[sopt->rr+1];
@@ -143,7 +143,7 @@ int ip_options_echo(struct ip_options * dopt, struct sk_buff * skb)
__be32 addr;
memcpy(&addr, sptr+soffset-1, 4);
- if (inet_addr_type(dev_net(skb->dst->dev), addr) != RTN_LOCAL) {
+ if (inet_addr_type(dev_net(skb_dst(skb)->dev), addr) != RTN_LOCAL) {
dopt->ts_needtime = 1;
soffset += 8;
}
@@ -257,7 +257,7 @@ int ip_options_compile(struct net *net,
struct rtable *rt = NULL;
if (skb != NULL) {
- rt = skb->rtable;
+ rt = skb_rtable(skb);
optptr = (unsigned char *)&(ip_hdr(skb)[1]);
} else
optptr = opt->__data;
@@ -550,7 +550,7 @@ void ip_forward_options(struct sk_buff *skb)
{
struct ip_options * opt = &(IPCB(skb)->opt);
unsigned char * optptr;
- struct rtable *rt = skb->rtable;
+ struct rtable *rt = skb_rtable(skb);
unsigned char *raw = skb_network_header(skb);
if (opt->rr_needaddr) {
@@ -598,7 +598,7 @@ int ip_options_rcv_srr(struct sk_buff *skb)
__be32 nexthop;
struct iphdr *iph = ip_hdr(skb);
unsigned char *optptr = skb_network_header(skb) + opt->srr;
- struct rtable *rt = skb->rtable;
+ struct rtable *rt = skb_rtable(skb);
struct rtable *rt2;
int err;
@@ -623,13 +623,13 @@ int ip_options_rcv_srr(struct sk_buff *skb)
}
memcpy(&nexthop, &optptr[srrptr-1], 4);
- rt = skb->rtable;
- skb->rtable = NULL;
+ rt = skb_rtable(skb);
+ skb_dst_set(skb, NULL);
err = ip_route_input(skb, nexthop, iph->saddr, iph->tos, skb->dev);
- rt2 = skb->rtable;
+ rt2 = skb_rtable(skb);
if (err || (rt2->rt_type != RTN_UNICAST && rt2->rt_type != RTN_LOCAL)) {
ip_rt_put(rt2);
- skb->rtable = rt;
+ skb_dst_set(skb, &rt->u.dst);
return -EINVAL;
}
ip_rt_put(rt);
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index ea19c37ccc0..24702628266 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -95,7 +95,7 @@ int __ip_local_out(struct sk_buff *skb)
iph->tot_len = htons(skb->len);
ip_send_check(iph);
- return nf_hook(PF_INET, NF_INET_LOCAL_OUT, skb, NULL, skb->dst->dev,
+ return nf_hook(PF_INET, NF_INET_LOCAL_OUT, skb, NULL, skb_dst(skb)->dev,
dst_output);
}
@@ -118,7 +118,7 @@ static int ip_dev_loopback_xmit(struct sk_buff *newskb)
__skb_pull(newskb, skb_network_offset(newskb));
newskb->pkt_type = PACKET_LOOPBACK;
newskb->ip_summed = CHECKSUM_UNNECESSARY;
- WARN_ON(!newskb->dst);
+ WARN_ON(!skb_dst(newskb));
netif_rx(newskb);
return 0;
}
@@ -140,7 +140,7 @@ int ip_build_and_send_pkt(struct sk_buff *skb, struct sock *sk,
__be32 saddr, __be32 daddr, struct ip_options *opt)
{
struct inet_sock *inet = inet_sk(sk);
- struct rtable *rt = skb->rtable;
+ struct rtable *rt = skb_rtable(skb);
struct iphdr *iph;
/* Build the IP header. */
@@ -176,7 +176,7 @@ EXPORT_SYMBOL_GPL(ip_build_and_send_pkt);
static inline int ip_finish_output2(struct sk_buff *skb)
{
- struct dst_entry *dst = skb->dst;
+ struct dst_entry *dst = skb_dst(skb);
struct rtable *rt = (struct rtable *)dst;
struct net_device *dev = dst->dev;
unsigned int hh_len = LL_RESERVED_SPACE(dev);
@@ -217,14 +217,14 @@ static inline int ip_skb_dst_mtu(struct sk_buff *skb)
struct inet_sock *inet = skb->sk ? inet_sk(skb->sk) : NULL;
return (inet && inet->pmtudisc == IP_PMTUDISC_PROBE) ?
- skb->dst->dev->mtu : dst_mtu(skb->dst);
+ skb_dst(skb)->dev->mtu : dst_mtu(skb_dst(skb));
}
static int ip_finish_output(struct sk_buff *skb)
{
#if defined(CONFIG_NETFILTER) && defined(CONFIG_XFRM)
/* Policy lookup after SNAT yielded a new policy */
- if (skb->dst->xfrm != NULL) {
+ if (skb_dst(skb)->xfrm != NULL) {
IPCB(skb)->flags |= IPSKB_REROUTED;
return dst_output(skb);
}
@@ -238,7 +238,7 @@ static int ip_finish_output(struct sk_buff *skb)
int ip_mc_output(struct sk_buff *skb)
{
struct sock *sk = skb->sk;
- struct rtable *rt = skb->rtable;
+ struct rtable *rt = skb_rtable(skb);
struct net_device *dev = rt->u.dst.dev;
/*
@@ -296,7 +296,7 @@ int ip_mc_output(struct sk_buff *skb)
int ip_output(struct sk_buff *skb)
{
- struct net_device *dev = skb->dst->dev;
+ struct net_device *dev = skb_dst(skb)->dev;
IP_UPD_PO_STATS(dev_net(dev), IPSTATS_MIB_OUT, skb->len);
@@ -319,7 +319,7 @@ int ip_queue_xmit(struct sk_buff *skb, int ipfragok)
/* Skip all of this if the packet is already routed,
* f.e. by something like SCTP.
*/
- rt = skb->rtable;
+ rt = skb_rtable(skb);
if (rt != NULL)
goto packet_routed;
@@ -355,7 +355,7 @@ int ip_queue_xmit(struct sk_buff *skb, int ipfragok)
}
sk_setup_caps(sk, &rt->u.dst);
}
- skb->dst = dst_clone(&rt->u.dst);
+ skb_dst_set(skb, dst_clone(&rt->u.dst));
packet_routed:
if (opt && opt->is_strictroute && rt->rt_dst != rt->rt_gateway)
@@ -401,8 +401,8 @@ static void ip_copy_metadata(struct sk_buff *to, struct sk_buff *from)
to->pkt_type = from->pkt_type;
to->priority = from->priority;
to->protocol = from->protocol;
- dst_release(to->dst);
- to->dst = dst_clone(from->dst);
+ skb_dst_drop(to);
+ skb_dst_set(to, dst_clone(skb_dst(from)));
to->dev = from->dev;
to->mark = from->mark;
@@ -440,7 +440,7 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
unsigned int mtu, hlen, left, len, ll_rs, pad;
int offset;
__be16 not_last_frag;
- struct rtable *rt = skb->rtable;
+ struct rtable *rt = skb_rtable(skb);
int err = 0;
dev = rt->u.dst.dev;
@@ -474,7 +474,7 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
* LATER: this step can be merged to real generation of fragments,
* we can switch to copy when see the first bad fragment.
*/
- if (skb_shinfo(skb)->frag_list) {
+ if (skb_has_frags(skb)) {
struct sk_buff *frag;
int first_len = skb_pagelen(skb);
int truesizes = 0;
@@ -485,7 +485,7 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
skb_cloned(skb))
goto slow_path;
- for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next) {
+ skb_walk_frags(skb, frag) {
/* Correct geometry. */
if (frag->len > mtu ||
((frag->len & 7) && frag->next) ||
@@ -498,7 +498,6 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
BUG_ON(frag->sk);
if (skb->sk) {
- sock_hold(skb->sk);
frag->sk = skb->sk;
frag->destructor = sock_wfree;
truesizes += frag->truesize;
@@ -510,7 +509,7 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
err = 0;
offset = 0;
frag = skb_shinfo(skb)->frag_list;
- skb_shinfo(skb)->frag_list = NULL;
+ skb_frag_list_init(skb);
skb->data_len = first_len - skb_headlen(skb);
skb->truesize -= truesizes;
skb->len = first_len;
@@ -1294,7 +1293,7 @@ int ip_push_pending_frames(struct sock *sk)
* on dst refcount
*/
inet->cork.dst = NULL;
- skb->dst = &rt->u.dst;
+ skb_dst_set(skb, &rt->u.dst);
if (iph->protocol == IPPROTO_ICMP)
icmp_out_count(net, ((struct icmphdr *)
@@ -1362,7 +1361,7 @@ void ip_send_reply(struct sock *sk, struct sk_buff *skb, struct ip_reply_arg *ar
} replyopts;
struct ipcm_cookie ipc;
__be32 daddr;
- struct rtable *rt = skb->rtable;
+ struct rtable *rt = skb_rtable(skb);
if (ip_options_echo(&replyopts.opt, skb))
return;
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 43c05854d75..fc7993e9061 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -57,7 +57,7 @@
static void ip_cmsg_recv_pktinfo(struct msghdr *msg, struct sk_buff *skb)
{
struct in_pktinfo info;
- struct rtable *rt = skb->rtable;
+ struct rtable *rt = skb_rtable(skb);
info.ipi_addr.s_addr = ip_hdr(skb)->daddr;
if (rt) {
@@ -157,38 +157,39 @@ void ip_cmsg_recv(struct msghdr *msg, struct sk_buff *skb)
/* Ordered by supposed usage frequency */
if (flags & 1)
ip_cmsg_recv_pktinfo(msg, skb);
- if ((flags>>=1) == 0)
+ if ((flags >>= 1) == 0)
return;
if (flags & 1)
ip_cmsg_recv_ttl(msg, skb);
- if ((flags>>=1) == 0)
+ if ((flags >>= 1) == 0)
return;
if (flags & 1)
ip_cmsg_recv_tos(msg, skb);
- if ((flags>>=1) == 0)
+ if ((flags >>= 1) == 0)
return;
if (flags & 1)
ip_cmsg_recv_opts(msg, skb);
- if ((flags>>=1) == 0)
+ if ((flags >>= 1) == 0)
return;
if (flags & 1)
ip_cmsg_recv_retopts(msg, skb);
- if ((flags>>=1) == 0)
+ if ((flags >>= 1) == 0)
return;
if (flags & 1)
ip_cmsg_recv_security(msg, skb);
- if ((flags>>=1) == 0)
+ if ((flags >>= 1) == 0)
return;
if (flags & 1)
ip_cmsg_recv_dstaddr(msg, skb);
}
+EXPORT_SYMBOL(ip_cmsg_recv);
int ip_cmsg_send(struct net *net, struct msghdr *msg, struct ipcm_cookie *ipc)
{
@@ -203,7 +204,8 @@ int ip_cmsg_send(struct net *net, struct msghdr *msg, struct ipcm_cookie *ipc)
switch (cmsg->cmsg_type) {
case IP_RETOPTS:
err = cmsg->cmsg_len - CMSG_ALIGN(sizeof(struct cmsghdr));
- err = ip_options_get(net, &ipc->opt, CMSG_DATA(cmsg), err < 40 ? err : 40);
+ err = ip_options_get(net, &ipc->opt, CMSG_DATA(cmsg),
+ err < 40 ? err : 40);
if (err)
return err;
break;
@@ -238,7 +240,8 @@ int ip_cmsg_send(struct net *net, struct msghdr *msg, struct ipcm_cookie *ipc)
struct ip_ra_chain *ip_ra_chain;
DEFINE_RWLOCK(ip_ra_lock);
-int ip_ra_control(struct sock *sk, unsigned char on, void (*destructor)(struct sock *))
+int ip_ra_control(struct sock *sk, unsigned char on,
+ void (*destructor)(struct sock *))
{
struct ip_ra_chain *ra, *new_ra, **rap;
@@ -248,7 +251,7 @@ int ip_ra_control(struct sock *sk, unsigned char on, void (*destructor)(struct s
new_ra = on ? kmalloc(sizeof(*new_ra), GFP_KERNEL) : NULL;
write_lock_bh(&ip_ra_lock);
- for (rap = &ip_ra_chain; (ra=*rap) != NULL; rap = &ra->next) {
+ for (rap = &ip_ra_chain; (ra = *rap) != NULL; rap = &ra->next) {
if (ra->sk == sk) {
if (on) {
write_unlock_bh(&ip_ra_lock);
@@ -416,7 +419,8 @@ int ip_recv_error(struct sock *sk, struct msghdr *msg, int len)
/* Reset and regenerate socket error */
spin_lock_bh(&sk->sk_error_queue.lock);
sk->sk_err = 0;
- if ((skb2 = skb_peek(&sk->sk_error_queue)) != NULL) {
+ skb2 = skb_peek(&sk->sk_error_queue);
+ if (skb2 != NULL) {
sk->sk_err = SKB_EXT_ERR(skb2)->ee.ee_errno;
spin_unlock_bh(&sk->sk_error_queue.lock);
sk->sk_error_report(sk);
@@ -431,8 +435,8 @@ out:
/*
- * Socket option code for IP. This is the end of the line after any TCP,UDP etc options on
- * an IP socket.
+ * Socket option code for IP. This is the end of the line after any
+ * TCP,UDP etc options on an IP socket.
*/
static int do_ip_setsockopt(struct sock *sk, int level,
@@ -449,6 +453,7 @@ static int do_ip_setsockopt(struct sock *sk, int level,
(1<<IP_ROUTER_ALERT) | (1<<IP_FREEBIND) |
(1<<IP_PASSSEC) | (1<<IP_TRANSPARENT))) ||
optname == IP_MULTICAST_TTL ||
+ optname == IP_MULTICAST_ALL ||
optname == IP_MULTICAST_LOOP ||
optname == IP_RECVORIGDSTADDR) {
if (optlen >= sizeof(int)) {
@@ -474,7 +479,7 @@ static int do_ip_setsockopt(struct sock *sk, int level,
switch (optname) {
case IP_OPTIONS:
{
- struct ip_options * opt = NULL;
+ struct ip_options *opt = NULL;
if (optlen > 40 || optlen < 0)
goto e_inval;
err = ip_options_get_from_user(sock_net(sk), &opt,
@@ -556,9 +561,9 @@ static int do_ip_setsockopt(struct sock *sk, int level,
}
break;
case IP_TTL:
- if (optlen<1)
+ if (optlen < 1)
goto e_inval;
- if (val != -1 && (val < 1 || val>255))
+ if (val != -1 && (val < 0 || val > 255))
goto e_inval;
inet->uc_ttl = val;
break;
@@ -570,7 +575,7 @@ static int do_ip_setsockopt(struct sock *sk, int level,
inet->hdrincl = val ? 1 : 0;
break;
case IP_MTU_DISCOVER:
- if (val<0 || val>3)
+ if (val < 0 || val > 3)
goto e_inval;
inet->pmtudisc = val;
break;
@@ -582,7 +587,7 @@ static int do_ip_setsockopt(struct sock *sk, int level,
case IP_MULTICAST_TTL:
if (sk->sk_type == SOCK_STREAM)
goto e_inval;
- if (optlen<1)
+ if (optlen < 1)
goto e_inval;
if (val == -1)
val = 1;
@@ -591,7 +596,7 @@ static int do_ip_setsockopt(struct sock *sk, int level,
inet->mc_ttl = val;
break;
case IP_MULTICAST_LOOP:
- if (optlen<1)
+ if (optlen < 1)
goto e_inval;
inet->mc_loop = !!val;
break;
@@ -613,7 +618,8 @@ static int do_ip_setsockopt(struct sock *sk, int level,
} else {
memset(&mreq, 0, sizeof(mreq));
if (optlen >= sizeof(struct in_addr) &&
- copy_from_user(&mreq.imr_address, optval, sizeof(struct in_addr)))
+ copy_from_user(&mreq.imr_address, optval,
+ sizeof(struct in_addr)))
break;
}
@@ -677,7 +683,6 @@ static int do_ip_setsockopt(struct sock *sk, int level,
}
case IP_MSFILTER:
{
- extern int sysctl_igmp_max_msf;
struct ip_msfilter *msf;
if (optlen < IP_MSFILTER_SIZE(0))
@@ -831,7 +836,6 @@ static int do_ip_setsockopt(struct sock *sk, int level,
}
case MCAST_MSFILTER:
{
- extern int sysctl_igmp_max_msf;
struct sockaddr_in *psin;
struct ip_msfilter *msf = NULL;
struct group_filter *gsf = NULL;
@@ -849,9 +853,9 @@ static int do_ip_setsockopt(struct sock *sk, int level,
break;
}
err = -EFAULT;
- if (copy_from_user(gsf, optval, optlen)) {
+ if (copy_from_user(gsf, optval, optlen))
goto mc_msf_out;
- }
+
/* numsrc >= (4G-140)/128 overflow in 32 bits */
if (gsf->gf_numsrc >= 0x1ffffff ||
gsf->gf_numsrc > sysctl_igmp_max_msf) {
@@ -879,7 +883,7 @@ static int do_ip_setsockopt(struct sock *sk, int level,
msf->imsf_fmode = gsf->gf_fmode;
msf->imsf_numsrc = gsf->gf_numsrc;
err = -EADDRNOTAVAIL;
- for (i=0; i<gsf->gf_numsrc; ++i) {
+ for (i = 0; i < gsf->gf_numsrc; ++i) {
psin = (struct sockaddr_in *)&gsf->gf_slist[i];
if (psin->sin_family != AF_INET)
@@ -890,17 +894,24 @@ static int do_ip_setsockopt(struct sock *sk, int level,
gsf = NULL;
err = ip_mc_msfilter(sk, msf, ifindex);
- mc_msf_out:
+mc_msf_out:
kfree(msf);
kfree(gsf);
break;
}
+ case IP_MULTICAST_ALL:
+ if (optlen < 1)
+ goto e_inval;
+ if (val != 0 && val != 1)
+ goto e_inval;
+ inet->mc_all = val;
+ break;
case IP_ROUTER_ALERT:
err = ip_ra_control(sk, val ? 1 : 0, NULL);
break;
case IP_FREEBIND:
- if (optlen<1)
+ if (optlen < 1)
goto e_inval;
inet->freebind = !!val;
break;
@@ -957,6 +968,7 @@ int ip_setsockopt(struct sock *sk, int level,
#endif
return err;
}
+EXPORT_SYMBOL(ip_setsockopt);
#ifdef CONFIG_COMPAT
int compat_ip_setsockopt(struct sock *sk, int level, int optname,
@@ -986,13 +998,12 @@ int compat_ip_setsockopt(struct sock *sk, int level, int optname,
#endif
return err;
}
-
EXPORT_SYMBOL(compat_ip_setsockopt);
#endif
/*
- * Get the options. Note for future reference. The GET of IP options gets the
- * _received_ ones. The set sets the _sent_ ones.
+ * Get the options. Note for future reference. The GET of IP options gets
+ * the _received_ ones. The set sets the _sent_ ones.
*/
static int do_ip_getsockopt(struct sock *sk, int level, int optname,
@@ -1143,10 +1154,14 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
return -EFAULT;
}
err = ip_mc_gsfget(sk, &gsf,
- (struct group_filter __user *)optval, optlen);
+ (struct group_filter __user *)optval,
+ optlen);
release_sock(sk);
return err;
}
+ case IP_MULTICAST_ALL:
+ val = inet->mc_all;
+ break;
case IP_PKTOPTIONS:
{
struct msghdr msg;
@@ -1187,7 +1202,7 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
}
release_sock(sk);
- if (len < sizeof(int) && len > 0 && val>=0 && val<=255) {
+ if (len < sizeof(int) && len > 0 && val >= 0 && val <= 255) {
unsigned char ucval = (unsigned char)val;
len = 1;
if (put_user(len, optlen))
@@ -1230,6 +1245,7 @@ int ip_getsockopt(struct sock *sk, int level,
#endif
return err;
}
+EXPORT_SYMBOL(ip_getsockopt);
#ifdef CONFIG_COMPAT
int compat_ip_getsockopt(struct sock *sk, int level, int optname,
@@ -1262,11 +1278,5 @@ int compat_ip_getsockopt(struct sock *sk, int level, int optname,
#endif
return err;
}
-
EXPORT_SYMBOL(compat_ip_getsockopt);
#endif
-
-EXPORT_SYMBOL(ip_cmsg_recv);
-
-EXPORT_SYMBOL(ip_getsockopt);
-EXPORT_SYMBOL(ip_setsockopt);
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index 9054139795a..93e2b787da2 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -370,8 +370,7 @@ static int ipip_rcv(struct sk_buff *skb)
tunnel->dev->stats.rx_packets++;
tunnel->dev->stats.rx_bytes += skb->len;
skb->dev = tunnel->dev;
- dst_release(skb->dst);
- skb->dst = NULL;
+ skb_dst_drop(skb);
nf_reset(skb);
ipip_ecn_decapsulate(iph, skb);
netif_rx(skb);
@@ -416,7 +415,7 @@ static int ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
if (!dst) {
/* NBMA tunnel */
- if ((rt = skb->rtable) == NULL) {
+ if ((rt = skb_rtable(skb)) == NULL) {
stats->tx_fifo_errors++;
goto tx_error;
}
@@ -447,15 +446,15 @@ static int ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
if (tiph->frag_off)
mtu = dst_mtu(&rt->u.dst) - sizeof(struct iphdr);
else
- mtu = skb->dst ? dst_mtu(skb->dst) : dev->mtu;
+ mtu = skb_dst(skb) ? dst_mtu(skb_dst(skb)) : dev->mtu;
if (mtu < 68) {
stats->collisions++;
ip_rt_put(rt);
goto tx_error;
}
- if (skb->dst)
- skb->dst->ops->update_pmtu(skb->dst, mtu);
+ if (skb_dst(skb))
+ skb_dst(skb)->ops->update_pmtu(skb_dst(skb), mtu);
df |= (old_iph->frag_off&htons(IP_DF));
@@ -502,8 +501,8 @@ static int ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
IPCB(skb)->flags &= ~(IPSKB_XFRM_TUNNEL_SIZE | IPSKB_XFRM_TRANSFORMED |
IPSKB_REROUTED);
- dst_release(skb->dst);
- skb->dst = &rt->u.dst;
+ skb_dst_drop(skb);
+ skb_dst_set(skb, &rt->u.dst);
/*
* Push down and install the IPIP header.
@@ -713,6 +712,7 @@ static void ipip_tunnel_setup(struct net_device *dev)
dev->iflink = 0;
dev->addr_len = 4;
dev->features |= NETIF_F_NETNS_LOCAL;
+ dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
}
static void ipip_tunnel_init(struct net_device *dev)
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 13e9dd3012b..ffd98610446 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -651,7 +651,7 @@ static int ipmr_cache_report(struct net *net,
ip_hdr(skb)->protocol = 0; /* Flag to the kernel this is a route add */
msg = (struct igmpmsg *)skb_network_header(skb);
msg->im_vif = vifi;
- skb->dst = dst_clone(pkt->dst);
+ skb_dst_set(skb, dst_clone(skb_dst(pkt)));
/*
* Add our header
@@ -1201,7 +1201,7 @@ static void ip_encap(struct sk_buff *skb, __be32 saddr, __be32 daddr)
iph->protocol = IPPROTO_IPIP;
iph->ihl = 5;
iph->tot_len = htons(skb->len);
- ip_select_ident(iph, skb->dst, NULL);
+ ip_select_ident(iph, skb_dst(skb), NULL);
ip_send_check(iph);
memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
@@ -1212,7 +1212,7 @@ static inline int ipmr_forward_finish(struct sk_buff *skb)
{
struct ip_options * opt = &(IPCB(skb)->opt);
- IP_INC_STATS_BH(dev_net(skb->dst->dev), IPSTATS_MIB_OUTFORWDATAGRAMS);
+ IP_INC_STATS_BH(dev_net(skb_dst(skb)->dev), IPSTATS_MIB_OUTFORWDATAGRAMS);
if (unlikely(opt->optlen))
ip_forward_options(skb);
@@ -1290,8 +1290,8 @@ static void ipmr_queue_xmit(struct sk_buff *skb, struct mfc_cache *c, int vifi)
vif->pkt_out++;
vif->bytes_out += skb->len;
- dst_release(skb->dst);
- skb->dst = &rt->u.dst;
+ skb_dst_drop(skb);
+ skb_dst_set(skb, &rt->u.dst);
ip_decrease_ttl(ip_hdr(skb));
/* FIXME: forward and output firewalls used to be called here.
@@ -1354,7 +1354,7 @@ static int ip_mr_forward(struct sk_buff *skb, struct mfc_cache *cache, int local
if (net->ipv4.vif_table[vif].dev != skb->dev) {
int true_vifi;
- if (skb->rtable->fl.iif == 0) {
+ if (skb_rtable(skb)->fl.iif == 0) {
/* It is our own packet, looped back.
Very complicated situation...
@@ -1430,7 +1430,7 @@ int ip_mr_input(struct sk_buff *skb)
{
struct mfc_cache *cache;
struct net *net = dev_net(skb->dev);
- int local = skb->rtable->rt_flags&RTCF_LOCAL;
+ int local = skb_rtable(skb)->rt_flags & RTCF_LOCAL;
/* Packet is looped back after forward, it should not be
forwarded second time, but still can be delivered locally.
@@ -1543,8 +1543,7 @@ static int __pim_rcv(struct sk_buff *skb, unsigned int pimlen)
skb->protocol = htons(ETH_P_IP);
skb->ip_summed = 0;
skb->pkt_type = PACKET_HOST;
- dst_release(skb->dst);
- skb->dst = NULL;
+ skb_dst_drop(skb);
reg_dev->stats.rx_bytes += skb->len;
reg_dev->stats.rx_packets++;
nf_reset(skb);
@@ -1646,7 +1645,7 @@ int ipmr_get_route(struct net *net,
{
int err;
struct mfc_cache *cache;
- struct rtable *rt = skb->rtable;
+ struct rtable *rt = skb_rtable(skb);
read_lock(&mrt_lock);
cache = ipmr_cache_find(net, rt->rt_src, rt->rt_dst);
diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c
index fdf6811c31a..1725dc0ef68 100644
--- a/net/ipv4/netfilter.c
+++ b/net/ipv4/netfilter.c
@@ -12,7 +12,7 @@
/* route_me_harder function, used by iptable_nat, iptable_mangle + ip_queue */
int ip_route_me_harder(struct sk_buff *skb, unsigned addr_type)
{
- struct net *net = dev_net(skb->dst->dev);
+ struct net *net = dev_net(skb_dst(skb)->dev);
const struct iphdr *iph = ip_hdr(skb);
struct rtable *rt;
struct flowi fl = {};
@@ -41,8 +41,8 @@ int ip_route_me_harder(struct sk_buff *skb, unsigned addr_type)
return -1;
/* Drop old route. */
- dst_release(skb->dst);
- skb->dst = &rt->u.dst;
+ skb_dst_drop(skb);
+ skb_dst_set(skb, &rt->u.dst);
} else {
/* non-local src, find valid iif to satisfy
* rp-filter when calling ip_route_input. */
@@ -50,7 +50,7 @@ int ip_route_me_harder(struct sk_buff *skb, unsigned addr_type)
if (ip_route_output_key(net, &rt, &fl) != 0)
return -1;
- odst = skb->dst;
+ odst = skb_dst(skb);
if (ip_route_input(skb, iph->daddr, iph->saddr,
RT_TOS(iph->tos), rt->u.dst.dev) != 0) {
dst_release(&rt->u.dst);
@@ -60,18 +60,22 @@ int ip_route_me_harder(struct sk_buff *skb, unsigned addr_type)
dst_release(odst);
}
- if (skb->dst->error)
+ if (skb_dst(skb)->error)
return -1;
#ifdef CONFIG_XFRM
if (!(IPCB(skb)->flags & IPSKB_XFRM_TRANSFORMED) &&
- xfrm_decode_session(skb, &fl, AF_INET) == 0)
- if (xfrm_lookup(net, &skb->dst, &fl, skb->sk, 0))
+ xfrm_decode_session(skb, &fl, AF_INET) == 0) {
+ struct dst_entry *dst = skb_dst(skb);
+ skb_dst_set(skb, NULL);
+ if (xfrm_lookup(net, &dst, &fl, skb->sk, 0))
return -1;
+ skb_dst_set(skb, dst);
+ }
#endif
/* Change in oif may mean change in hh_len. */
- hh_len = skb->dst->dev->hard_header_len;
+ hh_len = skb_dst(skb)->dev->hard_header_len;
if (skb_headroom(skb) < hh_len &&
pskb_expand_head(skb, hh_len - skb_headroom(skb), 0, GFP_ATOMIC))
return -1;
@@ -92,7 +96,7 @@ int ip_xfrm_me_harder(struct sk_buff *skb)
if (xfrm_decode_session(skb, &fl, AF_INET) < 0)
return -1;
- dst = skb->dst;
+ dst = skb_dst(skb);
if (dst->xfrm)
dst = ((struct xfrm_dst *)dst)->route;
dst_hold(dst);
@@ -100,11 +104,11 @@ int ip_xfrm_me_harder(struct sk_buff *skb)
if (xfrm_lookup(dev_net(dst->dev), &dst, &fl, skb->sk, 0) < 0)
return -1;
- dst_release(skb->dst);
- skb->dst = dst;
+ skb_dst_drop(skb);
+ skb_dst_set(skb, dst);
/* Change in oif may mean change in hh_len. */
- hh_len = skb->dst->dev->hard_header_len;
+ hh_len = skb_dst(skb)->dev->hard_header_len;
if (skb_headroom(skb) < hh_len &&
pskb_expand_head(skb, hh_len - skb_headroom(skb), 0, GFP_ATOMIC))
return -1;
diff --git a/net/ipv4/netfilter/ipt_MASQUERADE.c b/net/ipv4/netfilter/ipt_MASQUERADE.c
index 855505d480d..dada0863946 100644
--- a/net/ipv4/netfilter/ipt_MASQUERADE.c
+++ b/net/ipv4/netfilter/ipt_MASQUERADE.c
@@ -69,7 +69,7 @@ masquerade_tg(struct sk_buff *skb, const struct xt_target_param *par)
return NF_ACCEPT;
mr = par->targinfo;
- rt = skb->rtable;
+ rt = skb_rtable(skb);
newsrc = inet_select_addr(par->out, rt->rt_gateway, RT_SCOPE_UNIVERSE);
if (!newsrc) {
printk("MASQUERADE: %s ate my IP address\n", par->out->name);
diff --git a/net/ipv4/netfilter/ipt_REJECT.c b/net/ipv4/netfilter/ipt_REJECT.c
index 0b4b6e0ff2b..c93ae44bff2 100644
--- a/net/ipv4/netfilter/ipt_REJECT.c
+++ b/net/ipv4/netfilter/ipt_REJECT.c
@@ -108,17 +108,16 @@ static void send_reset(struct sk_buff *oldskb, int hook)
addr_type = RTN_LOCAL;
/* ip_route_me_harder expects skb->dst to be set */
- dst_hold(oldskb->dst);
- nskb->dst = oldskb->dst;
+ skb_dst_set(nskb, dst_clone(skb_dst(oldskb)));
if (ip_route_me_harder(nskb, addr_type))
goto free_nskb;
- niph->ttl = dst_metric(nskb->dst, RTAX_HOPLIMIT);
+ niph->ttl = dst_metric(skb_dst(nskb), RTAX_HOPLIMIT);
nskb->ip_summed = CHECKSUM_NONE;
/* "Never happens" */
- if (nskb->len > dst_mtu(nskb->dst))
+ if (nskb->len > dst_mtu(skb_dst(nskb)))
goto free_nskb;
nf_ct_attach(nskb, oldskb);
diff --git a/net/ipv4/netfilter/nf_nat_helper.c b/net/ipv4/netfilter/nf_nat_helper.c
index cf7a42bf982..155c008626c 100644
--- a/net/ipv4/netfilter/nf_nat_helper.c
+++ b/net/ipv4/netfilter/nf_nat_helper.c
@@ -140,7 +140,7 @@ nf_nat_mangle_tcp_packet(struct sk_buff *skb,
const char *rep_buffer,
unsigned int rep_len)
{
- struct rtable *rt = skb->rtable;
+ struct rtable *rt = skb_rtable(skb);
struct iphdr *iph;
struct tcphdr *tcph;
int oldlen, datalen;
@@ -218,7 +218,7 @@ nf_nat_mangle_udp_packet(struct sk_buff *skb,
const char *rep_buffer,
unsigned int rep_len)
{
- struct rtable *rt = skb->rtable;
+ struct rtable *rt = skb_rtable(skb);
struct iphdr *iph;
struct udphdr *udph;
int datalen, oldlen;
diff --git a/net/ipv4/netfilter/nf_nat_proto_sctp.c b/net/ipv4/netfilter/nf_nat_proto_sctp.c
index 65e470bc612..3fc598eeeb1 100644
--- a/net/ipv4/netfilter/nf_nat_proto_sctp.c
+++ b/net/ipv4/netfilter/nf_nat_proto_sctp.c
@@ -33,6 +33,7 @@ sctp_manip_pkt(struct sk_buff *skb,
enum nf_nat_manip_type maniptype)
{
const struct iphdr *iph = (struct iphdr *)(skb->data + iphdroff);
+ struct sk_buff *frag;
sctp_sctphdr_t *hdr;
unsigned int hdroff = iphdroff + iph->ihl*4;
__be32 oldip, newip;
@@ -57,8 +58,8 @@ sctp_manip_pkt(struct sk_buff *skb,
}
crc32 = sctp_start_cksum((u8 *)hdr, skb_headlen(skb) - hdroff);
- for (skb = skb_shinfo(skb)->frag_list; skb; skb = skb->next)
- crc32 = sctp_update_cksum((u8 *)skb->data, skb_headlen(skb),
+ skb_walk_frags(skb, frag)
+ crc32 = sctp_update_cksum((u8 *)frag->data, skb_headlen(frag),
crc32);
crc32 = sctp_end_cksum(crc32);
hdr->checksum = crc32;
diff --git a/net/ipv4/netfilter/nf_nat_standalone.c b/net/ipv4/netfilter/nf_nat_standalone.c
index b7dd695691a..5567bd0d075 100644
--- a/net/ipv4/netfilter/nf_nat_standalone.c
+++ b/net/ipv4/netfilter/nf_nat_standalone.c
@@ -167,10 +167,9 @@ nf_nat_in(unsigned int hooknum,
ret = nf_nat_fn(hooknum, skb, in, out, okfn);
if (ret != NF_DROP && ret != NF_STOLEN &&
- daddr != ip_hdr(skb)->daddr) {
- dst_release(skb->dst);
- skb->dst = NULL;
- }
+ daddr != ip_hdr(skb)->daddr)
+ skb_dst_drop(skb);
+
return ret;
}
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index f774651f0a4..3dc9171a272 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -343,7 +343,7 @@ static int raw_send_hdrinc(struct sock *sk, void *from, size_t length,
skb->priority = sk->sk_priority;
skb->mark = sk->sk_mark;
- skb->dst = dst_clone(&rt->u.dst);
+ skb_dst_set(skb, dst_clone(&rt->u.dst));
skb_reset_network_header(skb);
iph = ip_hdr(skb);
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 28205e5bfa9..a849bb15d86 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1064,7 +1064,8 @@ work_done:
out: return 0;
}
-static int rt_intern_hash(unsigned hash, struct rtable *rt, struct rtable **rp)
+static int rt_intern_hash(unsigned hash, struct rtable *rt,
+ struct rtable **rp, struct sk_buff *skb)
{
struct rtable *rth, **rthp;
unsigned long now;
@@ -1114,7 +1115,10 @@ restart:
spin_unlock_bh(rt_hash_lock_addr(hash));
rt_drop(rt);
- *rp = rth;
+ if (rp)
+ *rp = rth;
+ else
+ skb_dst_set(skb, &rth->u.dst);
return 0;
}
@@ -1210,7 +1214,10 @@ restart:
rcu_assign_pointer(rt_hash_table[hash].chain, rt);
spin_unlock_bh(rt_hash_lock_addr(hash));
- *rp = rt;
+ if (rp)
+ *rp = rt;
+ else
+ skb_dst_set(skb, &rt->u.dst);
return 0;
}
@@ -1407,7 +1414,7 @@ void ip_rt_redirect(__be32 old_gw, __be32 daddr, __be32 new_gw,
&netevent);
rt_del(hash, rth);
- if (!rt_intern_hash(hash, rt, &rt))
+ if (!rt_intern_hash(hash, rt, &rt, NULL))
ip_rt_put(rt);
goto do_next;
}
@@ -1473,7 +1480,7 @@ static struct dst_entry *ipv4_negative_advice(struct dst_entry *dst)
void ip_rt_send_redirect(struct sk_buff *skb)
{
- struct rtable *rt = skb->rtable;
+ struct rtable *rt = skb_rtable(skb);
struct in_device *in_dev = in_dev_get(rt->u.dst.dev);
if (!in_dev)
@@ -1521,7 +1528,7 @@ out:
static int ip_error(struct sk_buff *skb)
{
- struct rtable *rt = skb->rtable;
+ struct rtable *rt = skb_rtable(skb);
unsigned long now;
int code;
@@ -1698,7 +1705,7 @@ static void ipv4_link_failure(struct sk_buff *skb)
icmp_send(skb, ICMP_DEST_UNREACH, ICMP_HOST_UNREACH, 0);
- rt = skb->rtable;
+ rt = skb_rtable(skb);
if (rt)
dst_set_expires(&rt->u.dst, 0);
}
@@ -1858,7 +1865,7 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
in_dev_put(in_dev);
hash = rt_hash(daddr, saddr, dev->ifindex, rt_genid(dev_net(dev)));
- return rt_intern_hash(hash, rth, &skb->rtable);
+ return rt_intern_hash(hash, rth, NULL, skb);
e_nobufs:
in_dev_put(in_dev);
@@ -2019,7 +2026,7 @@ static int ip_mkroute_input(struct sk_buff *skb,
/* put it into the cache */
hash = rt_hash(daddr, saddr, fl->iif,
rt_genid(dev_net(rth->u.dst.dev)));
- return rt_intern_hash(hash, rth, &skb->rtable);
+ return rt_intern_hash(hash, rth, NULL, skb);
}
/*
@@ -2175,7 +2182,7 @@ local_input:
}
rth->rt_type = res.type;
hash = rt_hash(daddr, saddr, fl.iif, rt_genid(net));
- err = rt_intern_hash(hash, rth, &skb->rtable);
+ err = rt_intern_hash(hash, rth, NULL, skb);
goto done;
no_route:
@@ -2244,7 +2251,7 @@ int ip_route_input(struct sk_buff *skb, __be32 daddr, __be32 saddr,
dst_use(&rth->u.dst, jiffies);
RT_CACHE_STAT_INC(in_hit);
rcu_read_unlock();
- skb->rtable = rth;
+ skb_dst_set(skb, &rth->u.dst);
return 0;
}
RT_CACHE_STAT_INC(in_hlist_search);
@@ -2420,7 +2427,7 @@ static int ip_mkroute_output(struct rtable **rp,
if (err == 0) {
hash = rt_hash(oldflp->fl4_dst, oldflp->fl4_src, oldflp->oif,
rt_genid(dev_net(dev_out)));
- err = rt_intern_hash(hash, rth, rp);
+ err = rt_intern_hash(hash, rth, rp, NULL);
}
return err;
@@ -2763,7 +2770,7 @@ static int rt_fill_info(struct net *net,
struct sk_buff *skb, u32 pid, u32 seq, int event,
int nowait, unsigned int flags)
{
- struct rtable *rt = skb->rtable;
+ struct rtable *rt = skb_rtable(skb);
struct rtmsg *r;
struct nlmsghdr *nlh;
long expires;
@@ -2907,7 +2914,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
err = ip_route_input(skb, dst, src, rtm->rtm_tos, dev);
local_bh_enable();
- rt = skb->rtable;
+ rt = skb_rtable(skb);
if (err == 0 && rt->u.dst.error)
err = -rt->u.dst.error;
} else {
@@ -2927,7 +2934,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
if (err)
goto errout_free;
- skb->rtable = rt;
+ skb_dst_set(skb, &rt->u.dst);
if (rtm->rtm_flags & RTM_F_NOTIFY)
rt->rt_flags |= RTCF_NOTIFY;
@@ -2968,15 +2975,15 @@ int ip_rt_dump(struct sk_buff *skb, struct netlink_callback *cb)
continue;
if (rt_is_expired(rt))
continue;
- skb->dst = dst_clone(&rt->u.dst);
+ skb_dst_set(skb, dst_clone(&rt->u.dst));
if (rt_fill_info(net, skb, NETLINK_CB(cb->skb).pid,
cb->nlh->nlmsg_seq, RTM_NEWROUTE,
1, NLM_F_MULTI) <= 0) {
- dst_release(xchg(&skb->dst, NULL));
+ skb_dst_drop(skb);
rcu_read_unlock_bh();
goto done;
}
- dst_release(xchg(&skb->dst, NULL));
+ skb_dst_drop(skb);
}
rcu_read_unlock_bh();
}
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 0fb8b441f1f..17b89c523f9 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -439,12 +439,14 @@ int tcp_ioctl(struct sock *sk, int cmd, unsigned long arg)
!tp->urg_data ||
before(tp->urg_seq, tp->copied_seq) ||
!before(tp->urg_seq, tp->rcv_nxt)) {
+ struct sk_buff *skb;
+
answ = tp->rcv_nxt - tp->copied_seq;
/* Subtract 1, if FIN is in queue. */
- if (answ && !skb_queue_empty(&sk->sk_receive_queue))
- answ -=
- tcp_hdr((struct sk_buff *)sk->sk_receive_queue.prev)->fin;
+ skb = skb_peek_tail(&sk->sk_receive_queue);
+ if (answ && skb)
+ answ -= tcp_hdr(skb)->fin;
} else
answ = tp->urg_seq - tp->copied_seq;
release_sock(sk);
@@ -1382,11 +1384,7 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
/* Next get a buffer. */
- skb = skb_peek(&sk->sk_receive_queue);
- do {
- if (!skb)
- break;
-
+ skb_queue_walk(&sk->sk_receive_queue, skb) {
/* Now that we have two receive queues this
* shouldn't happen.
*/
@@ -1403,8 +1401,7 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
if (tcp_hdr(skb)->fin)
goto found_fin_ok;
WARN_ON(!(flags & MSG_PEEK));
- skb = skb->next;
- } while (skb != (struct sk_buff *)&sk->sk_receive_queue);
+ }
/* Well, if we have backlog, try to process it now yet. */
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index eeb8a92aa41..2bdb0da237e 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -4426,7 +4426,7 @@ drop:
}
__skb_queue_head(&tp->out_of_order_queue, skb);
} else {
- struct sk_buff *skb1 = tp->out_of_order_queue.prev;
+ struct sk_buff *skb1 = skb_peek_tail(&tp->out_of_order_queue);
u32 seq = TCP_SKB_CB(skb)->seq;
u32 end_seq = TCP_SKB_CB(skb)->end_seq;
@@ -4443,15 +4443,18 @@ drop:
}
/* Find place to insert this segment. */
- do {
+ while (1) {
if (!after(TCP_SKB_CB(skb1)->seq, seq))
break;
- } while ((skb1 = skb1->prev) !=
- (struct sk_buff *)&tp->out_of_order_queue);
+ if (skb_queue_is_first(&tp->out_of_order_queue, skb1)) {
+ skb1 = NULL;
+ break;
+ }
+ skb1 = skb_queue_prev(&tp->out_of_order_queue, skb1);
+ }
/* Do skb overlap to previous one? */
- if (skb1 != (struct sk_buff *)&tp->out_of_order_queue &&
- before(seq, TCP_SKB_CB(skb1)->end_seq)) {
+ if (skb1 && before(seq, TCP_SKB_CB(skb1)->end_seq)) {
if (!after(end_seq, TCP_SKB_CB(skb1)->end_seq)) {
/* All the bits are present. Drop. */
__kfree_skb(skb);
@@ -4463,15 +4466,26 @@ drop:
tcp_dsack_set(sk, seq,
TCP_SKB_CB(skb1)->end_seq);
} else {
- skb1 = skb1->prev;
+ if (skb_queue_is_first(&tp->out_of_order_queue,
+ skb1))
+ skb1 = NULL;
+ else
+ skb1 = skb_queue_prev(
+ &tp->out_of_order_queue,
+ skb1);
}
}
- __skb_queue_after(&tp->out_of_order_queue, skb1, skb);
+ if (!skb1)
+ __skb_queue_head(&tp->out_of_order_queue, skb);
+ else
+ __skb_queue_after(&tp->out_of_order_queue, skb1, skb);
/* And clean segments covered by new one as whole. */
- while ((skb1 = skb->next) !=
- (struct sk_buff *)&tp->out_of_order_queue &&
- after(end_seq, TCP_SKB_CB(skb1)->seq)) {
+ while (!skb_queue_is_last(&tp->out_of_order_queue, skb)) {
+ skb1 = skb_queue_next(&tp->out_of_order_queue, skb);
+
+ if (!after(end_seq, TCP_SKB_CB(skb1)->seq))
+ break;
if (before(end_seq, TCP_SKB_CB(skb1)->end_seq)) {
tcp_dsack_extend(sk, TCP_SKB_CB(skb1)->seq,
end_seq);
@@ -4492,7 +4506,10 @@ add_sack:
static struct sk_buff *tcp_collapse_one(struct sock *sk, struct sk_buff *skb,
struct sk_buff_head *list)
{
- struct sk_buff *next = skb->next;
+ struct sk_buff *next = NULL;
+
+ if (!skb_queue_is_last(list, skb))
+ next = skb_queue_next(list, skb);
__skb_unlink(skb, list);
__kfree_skb(skb);
@@ -4503,6 +4520,9 @@ static struct sk_buff *tcp_collapse_one(struct sock *sk, struct sk_buff *skb,
/* Collapse contiguous sequence of skbs head..tail with
* sequence numbers start..end.
+ *
+ * If tail is NULL, this means until the end of the list.
+ *
* Segments with FIN/SYN are not collapsed (only because this
* simplifies code)
*/
@@ -4511,15 +4531,23 @@ tcp_collapse(struct sock *sk, struct sk_buff_head *list,
struct sk_buff *head, struct sk_buff *tail,
u32 start, u32 end)
{
- struct sk_buff *skb;
+ struct sk_buff *skb, *n;
+ bool end_of_skbs;
/* First, check that queue is collapsible and find
* the point where collapsing can be useful. */
- for (skb = head; skb != tail;) {
+ skb = head;
+restart:
+ end_of_skbs = true;
+ skb_queue_walk_from_safe(list, skb, n) {
+ if (skb == tail)
+ break;
/* No new bits? It is possible on ofo queue. */
if (!before(start, TCP_SKB_CB(skb)->end_seq)) {
skb = tcp_collapse_one(sk, skb, list);
- continue;
+ if (!skb)
+ break;
+ goto restart;
}
/* The first skb to collapse is:
@@ -4529,16 +4557,24 @@ tcp_collapse(struct sock *sk, struct sk_buff_head *list,
*/
if (!tcp_hdr(skb)->syn && !tcp_hdr(skb)->fin &&
(tcp_win_from_space(skb->truesize) > skb->len ||
- before(TCP_SKB_CB(skb)->seq, start) ||
- (skb->next != tail &&
- TCP_SKB_CB(skb)->end_seq != TCP_SKB_CB(skb->next)->seq)))
+ before(TCP_SKB_CB(skb)->seq, start))) {
+ end_of_skbs = false;
break;
+ }
+
+ if (!skb_queue_is_last(list, skb)) {
+ struct sk_buff *next = skb_queue_next(list, skb);
+ if (next != tail &&
+ TCP_SKB_CB(skb)->end_seq != TCP_SKB_CB(next)->seq) {
+ end_of_skbs = false;
+ break;
+ }
+ }
/* Decided to skip this, advance start seq. */
start = TCP_SKB_CB(skb)->end_seq;
- skb = skb->next;
}
- if (skb == tail || tcp_hdr(skb)->syn || tcp_hdr(skb)->fin)
+ if (end_of_skbs || tcp_hdr(skb)->syn || tcp_hdr(skb)->fin)
return;
while (before(start, end)) {
@@ -4583,7 +4619,8 @@ tcp_collapse(struct sock *sk, struct sk_buff_head *list,
}
if (!before(start, TCP_SKB_CB(skb)->end_seq)) {
skb = tcp_collapse_one(sk, skb, list);
- if (skb == tail ||
+ if (!skb ||
+ skb == tail ||
tcp_hdr(skb)->syn ||
tcp_hdr(skb)->fin)
return;
@@ -4610,17 +4647,21 @@ static void tcp_collapse_ofo_queue(struct sock *sk)
head = skb;
for (;;) {
- skb = skb->next;
+ struct sk_buff *next = NULL;
+
+ if (!skb_queue_is_last(&tp->out_of_order_queue, skb))
+ next = skb_queue_next(&tp->out_of_order_queue, skb);
+ skb = next;
/* Segment is terminated when we see gap or when
* we are at the end of all the queue. */
- if (skb == (struct sk_buff *)&tp->out_of_order_queue ||
+ if (!skb ||
after(TCP_SKB_CB(skb)->seq, end) ||
before(TCP_SKB_CB(skb)->end_seq, start)) {
tcp_collapse(sk, &tp->out_of_order_queue,
head, skb, start, end);
head = skb;
- if (skb == (struct sk_buff *)&tp->out_of_order_queue)
+ if (!skb)
break;
/* Start new segment */
start = TCP_SKB_CB(skb)->seq;
@@ -4681,10 +4722,11 @@ static int tcp_prune_queue(struct sock *sk)
tp->rcv_ssthresh = min(tp->rcv_ssthresh, 4U * tp->advmss);
tcp_collapse_ofo_queue(sk);
- tcp_collapse(sk, &sk->sk_receive_queue,
- sk->sk_receive_queue.next,
- (struct sk_buff *)&sk->sk_receive_queue,
- tp->copied_seq, tp->rcv_nxt);
+ if (!skb_queue_empty(&sk->sk_receive_queue))
+ tcp_collapse(sk, &sk->sk_receive_queue,
+ skb_peek(&sk->sk_receive_queue),
+ NULL,
+ tp->copied_seq, tp->rcv_nxt);
sk_mem_reclaim(sk);
if (atomic_read(&sk->sk_rmem_alloc) <= sk->sk_rcvbuf)
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index fc79e341628..5a1ca2698c8 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -546,7 +546,7 @@ static void tcp_v4_send_reset(struct sock *sk, struct sk_buff *skb)
if (th->rst)
return;
- if (skb->rtable->rt_type != RTN_LOCAL)
+ if (skb_rtable(skb)->rt_type != RTN_LOCAL)
return;
/* Swap the send and the receive. */
@@ -590,7 +590,7 @@ static void tcp_v4_send_reset(struct sock *sk, struct sk_buff *skb)
arg.csumoffset = offsetof(struct tcphdr, check) / 2;
arg.flags = (sk && inet_sk(sk)->transparent) ? IP_REPLY_ARG_NOSRCCHECK : 0;
- net = dev_net(skb->dst->dev);
+ net = dev_net(skb_dst(skb)->dev);
ip_send_reply(net->ipv4.tcp_sock, skb,
&arg, arg.iov[0].iov_len);
@@ -617,7 +617,7 @@ static void tcp_v4_send_ack(struct sk_buff *skb, u32 seq, u32 ack,
];
} rep;
struct ip_reply_arg arg;
- struct net *net = dev_net(skb->dst->dev);
+ struct net *net = dev_net(skb_dst(skb)->dev);
memset(&rep.th, 0, sizeof(struct tcphdr));
memset(&arg, 0, sizeof(arg));
@@ -1185,7 +1185,7 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
#endif
/* Never answer to SYNs send to broadcast or multicast */
- if (skb->rtable->rt_flags & (RTCF_BROADCAST | RTCF_MULTICAST))
+ if (skb_rtable(skb)->rt_flags & (RTCF_BROADCAST | RTCF_MULTICAST))
goto drop;
/* TW buckets are converted to open requests without
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 79c39dc9b01..416fc4c2e7e 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2202,7 +2202,7 @@ struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst,
/* Reserve space for headers. */
skb_reserve(skb, MAX_TCP_HEADER);
- skb->dst = dst_clone(dst);
+ skb_dst_set(skb, dst_clone(dst));
mss = dst_metric(dst, RTAX_ADVMSS);
if (tp->rx_opt.user_mss && tp->rx_opt.user_mss < mss)
diff --git a/net/ipv4/tcp_vegas.c b/net/ipv4/tcp_vegas.c
index a453aac91bd..c6743eec9b7 100644
--- a/net/ipv4/tcp_vegas.c
+++ b/net/ipv4/tcp_vegas.c
@@ -158,6 +158,11 @@ void tcp_vegas_cwnd_event(struct sock *sk, enum tcp_ca_event event)
}
EXPORT_SYMBOL_GPL(tcp_vegas_cwnd_event);
+static inline u32 tcp_vegas_ssthresh(struct tcp_sock *tp)
+{
+ return min(tp->snd_ssthresh, tp->snd_cwnd-1);
+}
+
static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
{
struct tcp_sock *tp = tcp_sk(sk);
@@ -221,11 +226,10 @@ static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
*/
diff = tp->snd_cwnd * (rtt-vegas->baseRTT) / vegas->baseRTT;
- if (diff > gamma && tp->snd_ssthresh > 2 ) {
+ if (diff > gamma && tp->snd_cwnd <= tp->snd_ssthresh) {
/* Going too fast. Time to slow down
* and switch to congestion avoidance.
*/
- tp->snd_ssthresh = 2;
/* Set cwnd to match the actual rate
* exactly:
@@ -235,6 +239,7 @@ static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
* utilization.
*/
tp->snd_cwnd = min(tp->snd_cwnd, (u32)target_cwnd+1);
+ tp->snd_ssthresh = tcp_vegas_ssthresh(tp);
} else if (tp->snd_cwnd <= tp->snd_ssthresh) {
/* Slow start. */
@@ -250,6 +255,8 @@ static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
* we slow down.
*/
tp->snd_cwnd--;
+ tp->snd_ssthresh
+ = tcp_vegas_ssthresh(tp);
} else if (diff < alpha) {
/* We don't have enough extra packets
* in the network, so speed up.
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 7a1d1ce22e6..8f4158d7c9a 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -328,7 +328,7 @@ static inline struct sock *__udp4_lib_lookup_skb(struct sk_buff *skb,
if (unlikely(sk = skb_steal_sock(skb)))
return sk;
else
- return __udp4_lib_lookup(dev_net(skb->dst->dev), iph->saddr, sport,
+ return __udp4_lib_lookup(dev_net(skb_dst(skb)->dev), iph->saddr, sport,
iph->daddr, dport, inet_iif(skb),
udptable);
}
@@ -1237,7 +1237,7 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
struct sock *sk;
struct udphdr *uh;
unsigned short ulen;
- struct rtable *rt = (struct rtable*)skb->dst;
+ struct rtable *rt = skb_rtable(skb);
__be32 saddr, daddr;
struct net *net = dev_net(skb->dev);
diff --git a/net/ipv4/xfrm4_input.c b/net/ipv4/xfrm4_input.c
index 4ec2162a437..f9f922a0ba8 100644
--- a/net/ipv4/xfrm4_input.c
+++ b/net/ipv4/xfrm4_input.c
@@ -23,7 +23,7 @@ int xfrm4_extract_input(struct xfrm_state *x, struct sk_buff *skb)
static inline int xfrm4_rcv_encap_finish(struct sk_buff *skb)
{
- if (skb->dst == NULL) {
+ if (skb_dst(skb) == NULL) {
const struct iphdr *iph = ip_hdr(skb);
if (ip_route_input(skb, iph->daddr, iph->saddr, iph->tos,
diff --git a/net/ipv4/xfrm4_mode_tunnel.c b/net/ipv4/xfrm4_mode_tunnel.c
index 7135279f3f8..3444f3b34ec 100644
--- a/net/ipv4/xfrm4_mode_tunnel.c
+++ b/net/ipv4/xfrm4_mode_tunnel.c
@@ -28,7 +28,7 @@ static inline void ipip_ecn_decapsulate(struct sk_buff *skb)
*/
static int xfrm4_mode_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
{
- struct dst_entry *dst = skb->dst;
+ struct dst_entry *dst = skb_dst(skb);
struct iphdr *top_iph;
int flags;
@@ -41,7 +41,7 @@ static int xfrm4_mode_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
top_iph->ihl = 5;
top_iph->version = 4;
- top_iph->protocol = xfrm_af2proto(skb->dst->ops->family);
+ top_iph->protocol = xfrm_af2proto(skb_dst(skb)->ops->family);
/* DS disclosed */
top_iph->tos = INET_ECN_encapsulate(XFRM_MODE_SKB_CB(skb)->tos,
diff --git a/net/ipv4/xfrm4_output.c b/net/ipv4/xfrm4_output.c
index 8c3180adddb..c908bd99bcb 100644
--- a/net/ipv4/xfrm4_output.c
+++ b/net/ipv4/xfrm4_output.c
@@ -29,7 +29,7 @@ static int xfrm4_tunnel_check_size(struct sk_buff *skb)
if (!(ip_hdr(skb)->frag_off & htons(IP_DF)) || skb->local_df)
goto out;
- dst = skb->dst;
+ dst = skb_dst(skb);
mtu = dst_mtu(dst);
if (skb->len > mtu) {
icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED, htonl(mtu));
@@ -72,7 +72,7 @@ EXPORT_SYMBOL(xfrm4_prepare_output);
static int xfrm4_output_finish(struct sk_buff *skb)
{
#ifdef CONFIG_NETFILTER
- if (!skb->dst->xfrm) {
+ if (!skb_dst(skb)->xfrm) {
IPCB(skb)->flags |= IPSKB_REROUTED;
return dst_output(skb);
}
@@ -87,6 +87,6 @@ static int xfrm4_output_finish(struct sk_buff *skb)
int xfrm4_output(struct sk_buff *skb)
{
return NF_HOOK_COND(PF_INET, NF_INET_POST_ROUTING, skb,
- NULL, skb->dst->dev, xfrm4_output_finish,
+ NULL, skb_dst(skb)->dev, xfrm4_output_finish,
!(IPCB(skb)->flags & IPSKB_REROUTED));
}
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 31938e5fb22..c3488372f12 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -591,7 +591,6 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int pfxlen,
{
struct inet6_ifaddr *ifa = NULL;
struct rt6_info *rt;
- struct net *net = dev_net(idev->dev);
int hash;
int err = 0;
int addr_type = ipv6_addr_type(addr);
@@ -608,7 +607,7 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int pfxlen,
goto out2;
}
- if (idev->cnf.disable_ipv6 || net->ipv6.devconf_all->disable_ipv6) {
+ if (idev->cnf.disable_ipv6) {
err = -EACCES;
goto out2;
}
@@ -1752,6 +1751,7 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len)
__u32 prefered_lft;
int addr_type;
struct inet6_dev *in6_dev;
+ struct net *net = dev_net(dev);
pinfo = (struct prefix_info *) opt;
@@ -1809,7 +1809,7 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len)
if (addrconf_finite_timeout(rt_expires))
rt_expires *= HZ;
- rt = rt6_lookup(dev_net(dev), &pinfo->prefix, NULL,
+ rt = rt6_lookup(net, &pinfo->prefix, NULL,
dev->ifindex, 1);
if (rt && addrconf_is_prefix_route(rt)) {
@@ -1846,7 +1846,6 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len)
struct inet6_ifaddr * ifp;
struct in6_addr addr;
int create = 0, update_lft = 0;
- struct net *net = dev_net(dev);
if (pinfo->prefix_len == 64) {
memcpy(&addr, &pinfo->prefix, 8);
@@ -3988,6 +3987,75 @@ static int addrconf_sysctl_forward_strategy(ctl_table *table,
return addrconf_fixup_forwarding(table, valp, val);
}
+static void dev_disable_change(struct inet6_dev *idev)
+{
+ if (!idev || !idev->dev)
+ return;
+
+ if (idev->cnf.disable_ipv6)
+ addrconf_notify(NULL, NETDEV_DOWN, idev->dev);
+ else
+ addrconf_notify(NULL, NETDEV_UP, idev->dev);
+}
+
+static void addrconf_disable_change(struct net *net, __s32 newf)
+{
+ struct net_device *dev;
+ struct inet6_dev *idev;
+
+ read_lock(&dev_base_lock);
+ for_each_netdev(net, dev) {
+ rcu_read_lock();
+ idev = __in6_dev_get(dev);
+ if (idev) {
+ int changed = (!idev->cnf.disable_ipv6) ^ (!newf);
+ idev->cnf.disable_ipv6 = newf;
+ if (changed)
+ dev_disable_change(idev);
+ }
+ rcu_read_unlock();
+ }
+ read_unlock(&dev_base_lock);
+}
+
+static int addrconf_disable_ipv6(struct ctl_table *table, int *p, int old)
+{
+ struct net *net;
+
+ net = (struct net *)table->extra2;
+
+ if (p == &net->ipv6.devconf_dflt->disable_ipv6)
+ return 0;
+
+ if (!rtnl_trylock())
+ return restart_syscall();
+
+ if (p == &net->ipv6.devconf_all->disable_ipv6) {
+ __s32 newf = net->ipv6.devconf_all->disable_ipv6;
+ net->ipv6.devconf_dflt->disable_ipv6 = newf;
+ addrconf_disable_change(net, newf);
+ } else if ((!*p) ^ (!old))
+ dev_disable_change((struct inet6_dev *)table->extra1);
+
+ rtnl_unlock();
+ return 0;
+}
+
+static
+int addrconf_sysctl_disable(ctl_table *ctl, int write, struct file * filp,
+ void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+ int *valp = ctl->data;
+ int val = *valp;
+ int ret;
+
+ ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos);
+
+ if (write)
+ ret = addrconf_disable_ipv6(ctl, valp, val);
+ return ret;
+}
+
static struct addrconf_sysctl_table
{
struct ctl_table_header *sysctl_header;
@@ -4225,7 +4293,8 @@ static struct addrconf_sysctl_table
.data = &ipv6_devconf.disable_ipv6,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = proc_dointvec,
+ .proc_handler = addrconf_sysctl_disable,
+ .strategy = sysctl_intvec,
},
{
.ctl_name = CTL_UNNUMBERED,
@@ -4346,6 +4415,10 @@ static int addrconf_init_net(struct net *net)
dflt = kmemdup(dflt, sizeof(ipv6_devconf_dflt), GFP_KERNEL);
if (dflt == NULL)
goto err_alloc_dflt;
+ } else {
+ /* these will be inherited by all namespaces */
+ dflt->autoconf = ipv6_defaults.autoconf;
+ dflt->disable_ipv6 = ipv6_defaults.disable_ipv6;
}
net->ipv6.devconf_all = all;
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index b6215be0963..85b3d0036af 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -72,9 +72,21 @@ MODULE_LICENSE("GPL");
static struct list_head inetsw6[SOCK_MAX];
static DEFINE_SPINLOCK(inetsw6_lock);
-static int disable_ipv6 = 0;
-module_param_named(disable, disable_ipv6, int, 0);
-MODULE_PARM_DESC(disable, "Disable IPv6 such that it is non-functional");
+struct ipv6_params ipv6_defaults = {
+ .disable_ipv6 = 0,
+ .autoconf = 1,
+};
+
+static int disable_ipv6_mod = 0;
+
+module_param_named(disable, disable_ipv6_mod, int, 0444);
+MODULE_PARM_DESC(disable, "Disable IPv6 module such that it is non-functional");
+
+module_param_named(disable_ipv6, ipv6_defaults.disable_ipv6, int, 0444);
+MODULE_PARM_DESC(disable_ipv6, "Disable IPv6 on all interfaces");
+
+module_param_named(autoconf, ipv6_defaults.autoconf, int, 0444);
+MODULE_PARM_DESC(autoconf, "Enable IPv6 address autoconfiguration on all interfaces");
static __inline__ struct ipv6_pinfo *inet6_sk_generic(struct sock *sk)
{
@@ -1038,7 +1050,7 @@ static int __init inet6_init(void)
for(r = &inetsw6[0]; r < &inetsw6[SOCK_MAX]; ++r)
INIT_LIST_HEAD(r);
- if (disable_ipv6) {
+ if (disable_ipv6_mod) {
printk(KERN_INFO
"IPv6: Loaded, but administratively disabled, "
"reboot required to enable\n");
@@ -1227,7 +1239,7 @@ module_init(inet6_init);
static void __exit inet6_exit(void)
{
- if (disable_ipv6)
+ if (disable_ipv6_mod)
return;
/* First of all disallow new sockets creation. */
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index 1c7f400a3cf..4aae658e550 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -277,7 +277,7 @@ static int ipv6_destopt_rcv(struct sk_buff *skb)
if (!pskb_may_pull(skb, skb_transport_offset(skb) + 8) ||
!pskb_may_pull(skb, (skb_transport_offset(skb) +
((skb_transport_header(skb)[1] + 1) << 3)))) {
- IP6_INC_STATS_BH(dev_net(skb->dst->dev), ip6_dst_idev(skb->dst),
+ IP6_INC_STATS_BH(dev_net(skb_dst(skb)->dev), ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_INHDRERRORS);
kfree_skb(skb);
return -1;
@@ -288,7 +288,7 @@ static int ipv6_destopt_rcv(struct sk_buff *skb)
dstbuf = opt->dst1;
#endif
- dst = dst_clone(skb->dst);
+ dst = dst_clone(skb_dst(skb));
if (ip6_parse_tlv(tlvprocdestopt_lst, skb)) {
dst_release(dst);
skb->transport_header += (skb_transport_header(skb)[1] + 1) << 3;
@@ -333,7 +333,7 @@ static int ipv6_rthdr_rcv(struct sk_buff *skb)
if (!pskb_may_pull(skb, skb_transport_offset(skb) + 8) ||
!pskb_may_pull(skb, (skb_transport_offset(skb) +
((skb_transport_header(skb)[1] + 1) << 3)))) {
- IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+ IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_INHDRERRORS);
kfree_skb(skb);
return -1;
@@ -343,7 +343,7 @@ static int ipv6_rthdr_rcv(struct sk_buff *skb)
if (ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr) ||
skb->pkt_type != PACKET_HOST) {
- IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+ IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_INADDRERRORS);
kfree_skb(skb);
return -1;
@@ -358,7 +358,7 @@ looped_back:
* processed by own
*/
if (!addr) {
- IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+ IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_INADDRERRORS);
kfree_skb(skb);
return -1;
@@ -384,7 +384,7 @@ looped_back:
goto unknown_rh;
/* Silently discard invalid RTH type 2 */
if (hdr->hdrlen != 2 || hdr->segments_left != 1) {
- IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+ IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_INHDRERRORS);
kfree_skb(skb);
return -1;
@@ -403,7 +403,7 @@ looped_back:
n = hdr->hdrlen >> 1;
if (hdr->segments_left > n) {
- IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+ IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_INHDRERRORS);
icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
((&hdr->segments_left) -
@@ -417,7 +417,7 @@ looped_back:
if (skb_cloned(skb)) {
/* the copy is a forwarded packet */
if (pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
- IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+ IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_OUTDISCARDS);
kfree_skb(skb);
return -1;
@@ -440,13 +440,13 @@ looped_back:
if (xfrm6_input_addr(skb, (xfrm_address_t *)addr,
(xfrm_address_t *)&ipv6_hdr(skb)->saddr,
IPPROTO_ROUTING) < 0) {
- IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+ IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_INADDRERRORS);
kfree_skb(skb);
return -1;
}
- if (!ipv6_chk_home_addr(dev_net(skb->dst->dev), addr)) {
- IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+ if (!ipv6_chk_home_addr(dev_net(skb_dst(skb)->dev), addr)) {
+ IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_INADDRERRORS);
kfree_skb(skb);
return -1;
@@ -458,7 +458,7 @@ looped_back:
}
if (ipv6_addr_is_multicast(addr)) {
- IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+ IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_INADDRERRORS);
kfree_skb(skb);
return -1;
@@ -468,17 +468,17 @@ looped_back:
ipv6_addr_copy(addr, &ipv6_hdr(skb)->daddr);
ipv6_addr_copy(&ipv6_hdr(skb)->daddr, &daddr);
- dst_release(xchg(&skb->dst, NULL));
+ skb_dst_drop(skb);
ip6_route_input(skb);
- if (skb->dst->error) {
+ if (skb_dst(skb)->error) {
skb_push(skb, skb->data - skb_network_header(skb));
dst_input(skb);
return -1;
}
- if (skb->dst->dev->flags&IFF_LOOPBACK) {
+ if (skb_dst(skb)->dev->flags&IFF_LOOPBACK) {
if (ipv6_hdr(skb)->hop_limit <= 1) {
- IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+ IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_INHDRERRORS);
icmpv6_send(skb, ICMPV6_TIME_EXCEED, ICMPV6_EXC_HOPLIMIT,
0, skb->dev);
@@ -494,7 +494,7 @@ looped_back:
return -1;
unknown_rh:
- IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst), IPSTATS_MIB_INHDRERRORS);
+ IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)), IPSTATS_MIB_INHDRERRORS);
icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
(&hdr->type) - skb_network_header(skb));
return -1;
@@ -552,11 +552,11 @@ void ipv6_exthdrs_exit(void)
**********************************/
/*
- * Note: we cannot rely on skb->dst before we assign it in ip6_route_input().
+ * Note: we cannot rely on skb_dst(skb) before we assign it in ip6_route_input().
*/
static inline struct inet6_dev *ipv6_skb_idev(struct sk_buff *skb)
{
- return skb->dst ? ip6_dst_idev(skb->dst) : __in6_dev_get(skb->dev);
+ return skb_dst(skb) ? ip6_dst_idev(skb_dst(skb)) : __in6_dev_get(skb->dev);
}
/* Router Alert as of RFC 2711 */
@@ -581,7 +581,7 @@ static int ipv6_hop_jumbo(struct sk_buff *skb, int optoff)
{
const unsigned char *nh = skb_network_header(skb);
u32 pkt_len;
- struct net *net = dev_net(skb->dst->dev);
+ struct net *net = dev_net(skb_dst(skb)->dev);
if (nh[optoff + 1] != 4 || (optoff & 3) != 2) {
LIMIT_NETDEBUG(KERN_DEBUG "ipv6_hop_jumbo: wrong jumbo opt length/alignment %d\n",
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index 3c3732d50c1..cc4797dd832 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -228,7 +228,7 @@ int inet6_csk_xmit(struct sk_buff *skb, int ipfragok)
__inet6_csk_dst_store(sk, dst, NULL, NULL);
}
- skb->dst = dst_clone(dst);
+ skb_dst_set(skb, dst_clone(dst));
/* Restore final destination back after routing done */
ipv6_addr_copy(&fl.fl6_dst, &np->daddr);
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index bc1a920c34a..c3a07d75b5f 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -48,7 +48,7 @@
inline int ip6_rcv_finish( struct sk_buff *skb)
{
- if (skb->dst == NULL)
+ if (skb_dst(skb) == NULL)
ip6_route_input(skb);
return dst_input(skb);
@@ -91,7 +91,7 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
* arrived via the sending interface (ethX), because of the
* nature of scoping architecture. --yoshfuji
*/
- IP6CB(skb)->iif = skb->dst ? ip6_dst_idev(skb->dst)->dev->ifindex : dev->ifindex;
+ IP6CB(skb)->iif = skb_dst(skb) ? ip6_dst_idev(skb_dst(skb))->dev->ifindex : dev->ifindex;
if (unlikely(!pskb_may_pull(skb, sizeof(*hdr))))
goto err;
@@ -161,7 +161,7 @@ static int ip6_input_finish(struct sk_buff *skb)
int nexthdr, raw;
u8 hash;
struct inet6_dev *idev;
- struct net *net = dev_net(skb->dst->dev);
+ struct net *net = dev_net(skb_dst(skb)->dev);
/*
* Parse extension headers
@@ -169,7 +169,7 @@ static int ip6_input_finish(struct sk_buff *skb)
rcu_read_lock();
resubmit:
- idev = ip6_dst_idev(skb->dst);
+ idev = ip6_dst_idev(skb_dst(skb));
if (!pskb_pull(skb, skb_transport_offset(skb)))
goto discard;
nhoff = IP6CB(skb)->nhoff;
@@ -242,8 +242,8 @@ int ip6_mc_input(struct sk_buff *skb)
struct ipv6hdr *hdr;
int deliver;
- IP6_UPD_PO_STATS_BH(dev_net(skb->dst->dev),
- ip6_dst_idev(skb->dst), IPSTATS_MIB_INMCAST,
+ IP6_UPD_PO_STATS_BH(dev_net(skb_dst(skb)->dev),
+ ip6_dst_idev(skb_dst(skb)), IPSTATS_MIB_INMCAST,
skb->len);
hdr = ipv6_hdr(skb);
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 735a2bf4b5f..7c76e3d1821 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -78,7 +78,7 @@ int __ip6_local_out(struct sk_buff *skb)
len = 0;
ipv6_hdr(skb)->payload_len = htons(len);
- return nf_hook(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, skb->dst->dev,
+ return nf_hook(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, skb_dst(skb)->dev,
dst_output);
}
@@ -96,7 +96,7 @@ EXPORT_SYMBOL_GPL(ip6_local_out);
static int ip6_output_finish(struct sk_buff *skb)
{
- struct dst_entry *dst = skb->dst;
+ struct dst_entry *dst = skb_dst(skb);
if (dst->hh)
return neigh_hh_output(dst->hh, skb);
@@ -117,7 +117,7 @@ static int ip6_dev_loopback_xmit(struct sk_buff *newskb)
__skb_pull(newskb, skb_network_offset(newskb));
newskb->pkt_type = PACKET_LOOPBACK;
newskb->ip_summed = CHECKSUM_UNNECESSARY;
- WARN_ON(!newskb->dst);
+ WARN_ON(!skb_dst(newskb));
netif_rx(newskb);
return 0;
@@ -126,7 +126,7 @@ static int ip6_dev_loopback_xmit(struct sk_buff *newskb)
static int ip6_output2(struct sk_buff *skb)
{
- struct dst_entry *dst = skb->dst;
+ struct dst_entry *dst = skb_dst(skb);
struct net_device *dev = dst->dev;
skb->protocol = htons(ETH_P_IPV6);
@@ -134,7 +134,7 @@ static int ip6_output2(struct sk_buff *skb)
if (ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr)) {
struct ipv6_pinfo* np = skb->sk ? inet6_sk(skb->sk) : NULL;
- struct inet6_dev *idev = ip6_dst_idev(skb->dst);
+ struct inet6_dev *idev = ip6_dst_idev(skb_dst(skb));
if (!(dev->flags & IFF_LOOPBACK) && (!np || np->mc_loop) &&
((mroute6_socket(dev_net(dev)) &&
@@ -172,21 +172,21 @@ static inline int ip6_skb_dst_mtu(struct sk_buff *skb)
struct ipv6_pinfo *np = skb->sk ? inet6_sk(skb->sk) : NULL;
return (np && np->pmtudisc == IPV6_PMTUDISC_PROBE) ?
- skb->dst->dev->mtu : dst_mtu(skb->dst);
+ skb_dst(skb)->dev->mtu : dst_mtu(skb_dst(skb));
}
int ip6_output(struct sk_buff *skb)
{
- struct inet6_dev *idev = ip6_dst_idev(skb->dst);
+ struct inet6_dev *idev = ip6_dst_idev(skb_dst(skb));
if (unlikely(idev->cnf.disable_ipv6)) {
- IP6_INC_STATS(dev_net(skb->dst->dev), idev,
+ IP6_INC_STATS(dev_net(skb_dst(skb)->dev), idev,
IPSTATS_MIB_OUTDISCARDS);
kfree_skb(skb);
return 0;
}
if ((skb->len > ip6_skb_dst_mtu(skb) && !skb_is_gso(skb)) ||
- dst_allfrag(skb->dst))
+ dst_allfrag(skb_dst(skb)))
return ip6_fragment(skb, ip6_output2);
else
return ip6_output2(skb);
@@ -202,7 +202,7 @@ int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl,
struct net *net = sock_net(sk);
struct ipv6_pinfo *np = inet6_sk(sk);
struct in6_addr *first_hop = &fl->fl6_dst;
- struct dst_entry *dst = skb->dst;
+ struct dst_entry *dst = skb_dst(skb);
struct ipv6hdr *hdr;
u8 proto = fl->proto;
int seg_len = skb->len;
@@ -222,7 +222,7 @@ int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl,
if (skb_headroom(skb) < head_room) {
struct sk_buff *skb2 = skb_realloc_headroom(skb, head_room);
if (skb2 == NULL) {
- IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
+ IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_OUTDISCARDS);
kfree_skb(skb);
return -ENOBUFS;
@@ -276,7 +276,7 @@ int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl,
mtu = dst_mtu(dst);
if ((skb->len <= mtu) || skb->local_df || skb_is_gso(skb)) {
- IP6_UPD_PO_STATS(net, ip6_dst_idev(skb->dst),
+ IP6_UPD_PO_STATS(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_OUT, skb->len);
return NF_HOOK(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, dst->dev,
dst_output);
@@ -286,7 +286,7 @@ int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl,
printk(KERN_DEBUG "IPv6: sending pkt_too_big to self\n");
skb->dev = dst->dev;
icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu, skb->dev);
- IP6_INC_STATS(net, ip6_dst_idev(skb->dst), IPSTATS_MIB_FRAGFAILS);
+ IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)), IPSTATS_MIB_FRAGFAILS);
kfree_skb(skb);
return -EMSGSIZE;
}
@@ -416,7 +416,7 @@ static inline int ip6_forward_finish(struct sk_buff *skb)
int ip6_forward(struct sk_buff *skb)
{
- struct dst_entry *dst = skb->dst;
+ struct dst_entry *dst = skb_dst(skb);
struct ipv6hdr *hdr = ipv6_hdr(skb);
struct inet6_skb_parm *opt = IP6CB(skb);
struct net *net = dev_net(dst->dev);
@@ -485,7 +485,7 @@ int ip6_forward(struct sk_buff *skb)
IP6_INC_STATS(net, ip6_dst_idev(dst), IPSTATS_MIB_INDISCARDS);
goto drop;
}
- dst = skb->dst;
+ dst = skb_dst(skb);
/* IPv6 specs say nothing about it, but it is clear that we cannot
send redirects to source routed frames.
@@ -566,8 +566,8 @@ static void ip6_copy_metadata(struct sk_buff *to, struct sk_buff *from)
to->pkt_type = from->pkt_type;
to->priority = from->priority;
to->protocol = from->protocol;
- dst_release(to->dst);
- to->dst = dst_clone(from->dst);
+ skb_dst_drop(to);
+ skb_dst_set(to, dst_clone(skb_dst(from)));
to->dev = from->dev;
to->mark = from->mark;
@@ -624,7 +624,7 @@ int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr)
static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
{
struct sk_buff *frag;
- struct rt6_info *rt = (struct rt6_info*)skb->dst;
+ struct rt6_info *rt = (struct rt6_info*)skb_dst(skb);
struct ipv6_pinfo *np = skb->sk ? inet6_sk(skb->sk) : NULL;
struct ipv6hdr *tmp_hdr;
struct frag_hdr *fh;
@@ -632,7 +632,7 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
__be32 frag_id = 0;
int ptr, offset = 0, err=0;
u8 *prevhdr, nexthdr = 0;
- struct net *net = dev_net(skb->dst->dev);
+ struct net *net = dev_net(skb_dst(skb)->dev);
hlen = ip6_find_1stfragopt(skb, &prevhdr);
nexthdr = *prevhdr;
@@ -644,9 +644,9 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
* check should be redundant, but it's free.)
*/
if (!skb->local_df) {
- skb->dev = skb->dst->dev;
+ skb->dev = skb_dst(skb)->dev;
icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu, skb->dev);
- IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
+ IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_FRAGFAILS);
kfree_skb(skb);
return -EMSGSIZE;
@@ -658,7 +658,7 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
}
mtu -= hlen + sizeof(struct frag_hdr);
- if (skb_shinfo(skb)->frag_list) {
+ if (skb_has_frags(skb)) {
int first_len = skb_pagelen(skb);
int truesizes = 0;
@@ -667,7 +667,7 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
skb_cloned(skb))
goto slow_path;
- for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next) {
+ skb_walk_frags(skb, frag) {
/* Correct geometry. */
if (frag->len > mtu ||
((frag->len & 7) && frag->next) ||
@@ -680,7 +680,6 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
BUG_ON(frag->sk);
if (skb->sk) {
- sock_hold(skb->sk);
frag->sk = skb->sk;
frag->destructor = sock_wfree;
truesizes += frag->truesize;
@@ -690,13 +689,13 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
err = 0;
offset = 0;
frag = skb_shinfo(skb)->frag_list;
- skb_shinfo(skb)->frag_list = NULL;
+ skb_frag_list_init(skb);
/* BUILD HEADER */
*prevhdr = NEXTHDR_FRAGMENT;
tmp_hdr = kmemdup(skb_network_header(skb), hlen, GFP_ATOMIC);
if (!tmp_hdr) {
- IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
+ IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_FRAGFAILS);
return -ENOMEM;
}
@@ -809,7 +808,7 @@ slow_path:
if ((frag = alloc_skb(len+hlen+sizeof(struct frag_hdr)+LL_ALLOCATED_SPACE(rt->u.dst.dev), GFP_ATOMIC)) == NULL) {
NETDEBUG(KERN_INFO "IPv6: frag: no memory for new fragment!\n");
- IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
+ IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_FRAGFAILS);
err = -ENOMEM;
goto fail;
@@ -873,16 +872,16 @@ slow_path:
if (err)
goto fail;
- IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
+ IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_FRAGCREATES);
}
- IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
+ IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_FRAGOKS);
kfree_skb(skb);
return err;
fail:
- IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
+ IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_FRAGFAILS);
kfree_skb(skb);
return err;
@@ -1516,10 +1515,10 @@ int ip6_push_pending_frames(struct sock *sk)
skb->priority = sk->sk_priority;
skb->mark = sk->sk_mark;
- skb->dst = dst_clone(&rt->u.dst);
+ skb_dst_set(skb, dst_clone(&rt->u.dst));
IP6_UPD_PO_STATS(net, rt->rt6i_idev, IPSTATS_MIB_OUT, skb->len);
if (proto == IPPROTO_ICMPV6) {
- struct inet6_dev *idev = ip6_dst_idev(skb->dst);
+ struct inet6_dev *idev = ip6_dst_idev(skb_dst(skb));
ICMP6MSGOUT_INC_STATS_BH(net, idev, icmp6_hdr(skb)->icmp6_type);
ICMP6_INC_STATS_BH(net, idev, ICMP6_MIB_OUTMSGS);
@@ -1545,8 +1544,8 @@ void ip6_flush_pending_frames(struct sock *sk)
struct sk_buff *skb;
while ((skb = __skb_dequeue_tail(&sk->sk_write_queue)) != NULL) {
- if (skb->dst)
- IP6_INC_STATS(sock_net(sk), ip6_dst_idev(skb->dst),
+ if (skb_dst(skb))
+ IP6_INC_STATS(sock_net(sk), ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_OUTDISCARDS);
kfree_skb(skb);
}
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index af256d47fd3..404d16a97d5 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -532,8 +532,8 @@ ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
if (!skb2)
return 0;
- dst_release(skb2->dst);
- skb2->dst = NULL;
+ skb_dst_drop(skb2);
+
skb_pull(skb2, offset);
skb_reset_network_header(skb2);
eiph = ip_hdr(skb2);
@@ -560,21 +560,21 @@ ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
ip_rt_put(rt);
goto out;
}
- skb2->dst = (struct dst_entry *)rt;
+ skb_dst_set(skb2, (struct dst_entry *)rt);
} else {
ip_rt_put(rt);
if (ip_route_input(skb2, eiph->daddr, eiph->saddr, eiph->tos,
skb2->dev) ||
- skb2->dst->dev->type != ARPHRD_TUNNEL)
+ skb_dst(skb2)->dev->type != ARPHRD_TUNNEL)
goto out;
}
/* change mtu on this route */
if (rel_type == ICMP_DEST_UNREACH && rel_code == ICMP_FRAG_NEEDED) {
- if (rel_info > dst_mtu(skb2->dst))
+ if (rel_info > dst_mtu(skb_dst(skb2)))
goto out;
- skb2->dst->ops->update_pmtu(skb2->dst, rel_info);
+ skb_dst(skb2)->ops->update_pmtu(skb_dst(skb2), rel_info);
}
icmp_send(skb2, rel_type, rel_code, htonl(rel_info));
@@ -606,8 +606,7 @@ ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
if (!skb2)
return 0;
- dst_release(skb2->dst);
- skb2->dst = NULL;
+ skb_dst_drop(skb2);
skb_pull(skb2, offset);
skb_reset_network_header(skb2);
@@ -720,8 +719,7 @@ static int ip6_tnl_rcv(struct sk_buff *skb, __u16 protocol,
skb->pkt_type = PACKET_HOST;
memset(skb->cb, 0, sizeof(struct inet6_skb_parm));
skb->dev = t->dev;
- dst_release(skb->dst);
- skb->dst = NULL;
+ skb_dst_drop(skb);
nf_reset(skb);
dscp_ecn_decapsulate(t, ipv6h, skb);
@@ -885,8 +883,8 @@ static int ip6_tnl_xmit2(struct sk_buff *skb,
}
if (mtu < IPV6_MIN_MTU)
mtu = IPV6_MIN_MTU;
- if (skb->dst)
- skb->dst->ops->update_pmtu(skb->dst, mtu);
+ if (skb_dst(skb))
+ skb_dst(skb)->ops->update_pmtu(skb_dst(skb), mtu);
if (skb->len > mtu) {
*pmtu = mtu;
err = -EMSGSIZE;
@@ -910,8 +908,8 @@ static int ip6_tnl_xmit2(struct sk_buff *skb,
kfree_skb(skb);
skb = new_skb;
}
- dst_release(skb->dst);
- skb->dst = dst_clone(dst);
+ skb_dst_drop(skb);
+ skb_dst_set(skb, dst_clone(dst));
skb->transport_header = skb->network_header;
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 228be551e9c..a35d8fc55b0 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -398,10 +398,9 @@ static int pim6_rcv(struct sk_buff *skb)
skb->protocol = htons(ETH_P_IPV6);
skb->ip_summed = 0;
skb->pkt_type = PACKET_HOST;
- dst_release(skb->dst);
+ skb_dst_drop(skb);
reg_dev->stats.rx_bytes += skb->len;
reg_dev->stats.rx_packets++;
- skb->dst = NULL;
nf_reset(skb);
netif_rx(skb);
dev_put(reg_dev);
@@ -849,7 +848,7 @@ static int ip6mr_cache_report(struct net *net, struct sk_buff *pkt, mifi_t mifi,
ipv6_addr_copy(&msg->im6_src, &ipv6_hdr(pkt)->saddr);
ipv6_addr_copy(&msg->im6_dst, &ipv6_hdr(pkt)->daddr);
- skb->dst = dst_clone(pkt->dst);
+ skb_dst_set(skb, dst_clone(skb_dst(pkt)));
skb->ip_summed = CHECKSUM_UNNECESSARY;
}
@@ -1487,7 +1486,7 @@ int ip6mr_ioctl(struct sock *sk, int cmd, void __user *arg)
static inline int ip6mr_forward2_finish(struct sk_buff *skb)
{
- IP6_INC_STATS_BH(dev_net(skb->dst->dev), ip6_dst_idev(skb->dst),
+ IP6_INC_STATS_BH(dev_net(skb_dst(skb)->dev), ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_OUTFORWDATAGRAMS);
return dst_output(skb);
}
@@ -1532,8 +1531,8 @@ static int ip6mr_forward2(struct sk_buff *skb, struct mfc6_cache *c, int vifi)
if (!dst)
goto out_free;
- dst_release(skb->dst);
- skb->dst = dst;
+ skb_dst_drop(skb);
+ skb_dst_set(skb, dst);
/*
* RFC1584 teaches, that DVMRP/PIM router must deliver packets locally
@@ -1722,7 +1721,7 @@ int ip6mr_get_route(struct net *net,
{
int err;
struct mfc6_cache *cache;
- struct rt6_info *rt = (struct rt6_info *)skb->dst;
+ struct rt6_info *rt = (struct rt6_info *)skb_dst(skb);
read_lock(&mrt_lock);
cache = ip6mr_cache_find(net, &rt->rt6i_src.addr, &rt->rt6i_dst.addr);
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 4b48819a5b8..4b264ed40a8 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1448,6 +1448,7 @@ static void mld_sendpack(struct sk_buff *skb)
struct net *net = dev_net(skb->dev);
int err;
struct flowi fl;
+ struct dst_entry *dst;
IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_OUT, skb->len);
@@ -1459,9 +1460,9 @@ static void mld_sendpack(struct sk_buff *skb)
IPPROTO_ICMPV6, csum_partial(skb_transport_header(skb),
mldlen, 0));
- skb->dst = icmp6_dst_alloc(skb->dev, NULL, &ipv6_hdr(skb)->daddr);
+ dst = icmp6_dst_alloc(skb->dev, NULL, &ipv6_hdr(skb)->daddr);
- if (!skb->dst) {
+ if (!dst) {
err = -ENOMEM;
goto err_out;
}
@@ -1470,7 +1471,8 @@ static void mld_sendpack(struct sk_buff *skb)
&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
skb->dev->ifindex);
- err = xfrm_lookup(net, &skb->dst, &fl, NULL, 0);
+ err = xfrm_lookup(net, &dst, &fl, NULL, 0);
+ skb_dst_set(skb, dst);
if (err)
goto err_out;
@@ -1775,6 +1777,7 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
IPV6_TLV_ROUTERALERT, 2, 0, 0,
IPV6_TLV_PADN, 0 };
struct flowi fl;
+ struct dst_entry *dst;
if (type == ICMPV6_MGM_REDUCTION)
snd_addr = &in6addr_linklocal_allrouters;
@@ -1828,8 +1831,8 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
idev = in6_dev_get(skb->dev);
- skb->dst = icmp6_dst_alloc(skb->dev, NULL, &ipv6_hdr(skb)->daddr);
- if (!skb->dst) {
+ dst = icmp6_dst_alloc(skb->dev, NULL, &ipv6_hdr(skb)->daddr);
+ if (!dst) {
err = -ENOMEM;
goto err_out;
}
@@ -1838,11 +1841,11 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
skb->dev->ifindex);
- err = xfrm_lookup(net, &skb->dst, &fl, NULL, 0);
+ err = xfrm_lookup(net, &dst, &fl, NULL, 0);
if (err)
goto err_out;
-
+ skb_dst_set(skb, dst);
err = NF_HOOK(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, skb->dev,
dst_output);
out:
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index e09f12ee57c..9eb68e92cc1 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -465,8 +465,8 @@ struct sk_buff *ndisc_build_skb(struct net_device *dev,
1, &err);
if (!skb) {
ND_PRINTK0(KERN_ERR
- "ICMPv6 ND: %s() failed to allocate an skb.\n",
- __func__);
+ "ICMPv6 ND: %s() failed to allocate an skb, err=%d.\n",
+ __func__, err);
return NULL;
}
@@ -530,7 +530,7 @@ void ndisc_send_skb(struct sk_buff *skb,
return;
}
- skb->dst = dst;
+ skb_dst_set(skb, dst);
idev = in6_dev_get(dst->dev);
IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_OUT, skb->len);
@@ -1562,8 +1562,8 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh,
1, &err);
if (buff == NULL) {
ND_PRINTK0(KERN_ERR
- "ICMPv6 Redirect: %s() failed to allocate an skb.\n",
- __func__);
+ "ICMPv6 Redirect: %s() failed to allocate an skb, err=%d.\n",
+ __func__, err);
goto release;
}
@@ -1612,7 +1612,7 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh,
len, IPPROTO_ICMPV6,
csum_partial(icmph, len, 0));
- buff->dst = dst;
+ skb_dst_set(buff, dst);
idev = in6_dev_get(dst->dev);
IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_OUT, skb->len);
err = NF_HOOK(PF_INET6, NF_INET_LOCAL_OUT, buff, NULL, dst->dev,
diff --git a/net/ipv6/netfilter.c b/net/ipv6/netfilter.c
index 834cea69fb5..d5ed92b1434 100644
--- a/net/ipv6/netfilter.c
+++ b/net/ipv6/netfilter.c
@@ -12,7 +12,7 @@
int ip6_route_me_harder(struct sk_buff *skb)
{
- struct net *net = dev_net(skb->dst->dev);
+ struct net *net = dev_net(skb_dst(skb)->dev);
struct ipv6hdr *iph = ipv6_hdr(skb);
struct dst_entry *dst;
struct flowi fl = {
@@ -28,9 +28,15 @@ int ip6_route_me_harder(struct sk_buff *skb)
#ifdef CONFIG_XFRM
if (!(IP6CB(skb)->flags & IP6SKB_XFRM_TRANSFORMED) &&
- xfrm_decode_session(skb, &fl, AF_INET6) == 0)
- if (xfrm_lookup(net, &skb->dst, &fl, skb->sk, 0))
+ xfrm_decode_session(skb, &fl, AF_INET6) == 0) {
+ struct dst_entry *dst2 = skb_dst(skb);
+
+ if (xfrm_lookup(net, &dst2, &fl, skb->sk, 0)) {
+ skb_dst_set(skb, NULL);
return -1;
+ }
+ skb_dst_set(skb, dst2);
+ }
#endif
if (dst->error) {
@@ -41,9 +47,9 @@ int ip6_route_me_harder(struct sk_buff *skb)
}
/* Drop old route. */
- dst_release(skb->dst);
+ skb_dst_drop(skb);
- skb->dst = dst;
+ skb_dst_set(skb, dst);
return 0;
}
EXPORT_SYMBOL(ip6_route_me_harder);
diff --git a/net/ipv6/netfilter/ip6t_REJECT.c b/net/ipv6/netfilter/ip6t_REJECT.c
index 5a2d0a41694..5a7f00cd15c 100644
--- a/net/ipv6/netfilter/ip6t_REJECT.c
+++ b/net/ipv6/netfilter/ip6t_REJECT.c
@@ -112,7 +112,7 @@ static void send_reset(struct net *net, struct sk_buff *oldskb)
return;
}
- nskb->dst = dst;
+ skb_dst_set(nskb, dst);
skb_reserve(nskb, hh_len + dst->header_len);
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 058a5e4a60c..f3aba255ad9 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -409,7 +409,7 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
/* If the first fragment is fragmented itself, we split
* it to two chunks: the first with data and paged part
* and the second, holding only fragments. */
- if (skb_shinfo(head)->frag_list) {
+ if (skb_has_frags(head)) {
struct sk_buff *clone;
int i, plen = 0;
@@ -420,7 +420,7 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
clone->next = head->next;
head->next = clone;
skb_shinfo(clone)->frag_list = skb_shinfo(head)->frag_list;
- skb_shinfo(head)->frag_list = NULL;
+ skb_frag_list_init(head);
for (i=0; i<skb_shinfo(head)->nr_frags; i++)
plen += skb_shinfo(head)->frags[i].size;
clone->len = clone->data_len = head->data_len - plen;
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index e99307fba0b..36a090d87a3 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -625,7 +625,7 @@ static int rawv6_send_hdrinc(struct sock *sk, void *from, int length,
skb->priority = sk->sk_priority;
skb->mark = sk->sk_mark;
- skb->dst = dst_clone(&rt->u.dst);
+ skb_dst_set(skb, dst_clone(&rt->u.dst));
skb_put(skb, length);
skb_reset_network_header(skb);
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index e9ac7a12f59..2642a41a853 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -267,7 +267,7 @@ static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
struct sk_buff *prev, *next;
struct net_device *dev;
int offset, end;
- struct net *net = dev_net(skb->dst->dev);
+ struct net *net = dev_net(skb_dst(skb)->dev);
if (fq->q.last_in & INET_FRAG_COMPLETE)
goto err;
@@ -277,7 +277,7 @@ static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
((u8 *)(fhdr + 1) - (u8 *)(ipv6_hdr(skb) + 1)));
if ((unsigned int)end > IPV6_MAXPLEN) {
- IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+ IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_INHDRERRORS);
icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
((u8 *)&fhdr->frag_off -
@@ -310,7 +310,7 @@ static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
/* RFC2460 says always send parameter problem in
* this case. -DaveM
*/
- IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+ IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_INHDRERRORS);
icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
offsetof(struct ipv6hdr, payload_len));
@@ -434,7 +434,7 @@ static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
return -1;
err:
- IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
+ IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_REASMFAILS);
kfree_skb(skb);
return -1;
@@ -494,7 +494,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *prev,
/* If the first fragment is fragmented itself, we split
* it to two chunks: the first with data and paged part
* and the second, holding only fragments. */
- if (skb_shinfo(head)->frag_list) {
+ if (skb_has_frags(head)) {
struct sk_buff *clone;
int i, plen = 0;
@@ -503,7 +503,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *prev,
clone->next = head->next;
head->next = clone;
skb_shinfo(clone)->frag_list = skb_shinfo(head)->frag_list;
- skb_shinfo(head)->frag_list = NULL;
+ skb_frag_list_init(head);
for (i=0; i<skb_shinfo(head)->nr_frags; i++)
plen += skb_shinfo(head)->frags[i].size;
clone->len = clone->data_len = head->data_len - plen;
@@ -576,9 +576,9 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
struct frag_hdr *fhdr;
struct frag_queue *fq;
struct ipv6hdr *hdr = ipv6_hdr(skb);
- struct net *net = dev_net(skb->dst->dev);
+ struct net *net = dev_net(skb_dst(skb)->dev);
- IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst), IPSTATS_MIB_REASMREQDS);
+ IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)), IPSTATS_MIB_REASMREQDS);
/* Jumbo payload inhibits frag. header */
if (hdr->payload_len==0)
@@ -595,17 +595,17 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
/* It is not a fragmented frame */
skb->transport_header += sizeof(struct frag_hdr);
IP6_INC_STATS_BH(net,
- ip6_dst_idev(skb->dst), IPSTATS_MIB_REASMOKS);
+ ip6_dst_idev(skb_dst(skb)), IPSTATS_MIB_REASMOKS);
IP6CB(skb)->nhoff = (u8 *)fhdr - skb_network_header(skb);
return 1;
}
if (atomic_read(&net->ipv6.frags.mem) > net->ipv6.frags.high_thresh)
- ip6_evictor(net, ip6_dst_idev(skb->dst));
+ ip6_evictor(net, ip6_dst_idev(skb_dst(skb)));
if ((fq = fq_find(net, fhdr->identification, &hdr->saddr, &hdr->daddr,
- ip6_dst_idev(skb->dst))) != NULL) {
+ ip6_dst_idev(skb_dst(skb)))) != NULL) {
int ret;
spin_lock(&fq->q.lock);
@@ -617,12 +617,12 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
return ret;
}
- IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst), IPSTATS_MIB_REASMFAILS);
+ IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)), IPSTATS_MIB_REASMFAILS);
kfree_skb(skb);
return -1;
fail_hdr:
- IP6_INC_STATS(net, ip6_dst_idev(skb->dst), IPSTATS_MIB_INHDRERRORS);
+ IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)), IPSTATS_MIB_INHDRERRORS);
icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, skb_network_header_len(skb));
return -1;
}
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 032a5ec391c..658293ea05b 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -800,7 +800,7 @@ void ip6_route_input(struct sk_buff *skb)
if (rt6_need_strict(&iph->daddr) && skb->dev->type != ARPHRD_PIMREG)
flags |= RT6_LOOKUP_F_IFACE;
- skb->dst = fib6_rule_lookup(net, &fl, flags, ip6_pol_route_input);
+ skb_dst_set(skb, fib6_rule_lookup(net, &fl, flags, ip6_pol_route_input));
}
static struct rt6_info *ip6_pol_route_output(struct net *net, struct fib6_table *table,
@@ -911,7 +911,7 @@ static void ip6_link_failure(struct sk_buff *skb)
icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_ADDR_UNREACH, 0, skb->dev);
- rt = (struct rt6_info *) skb->dst;
+ rt = (struct rt6_info *) skb_dst(skb);
if (rt) {
if (rt->rt6i_flags&RTF_CACHE) {
dst_set_expires(&rt->u.dst, 0);
@@ -1868,7 +1868,7 @@ int ipv6_route_ioctl(struct net *net, unsigned int cmd, void __user *arg)
static int ip6_pkt_drop(struct sk_buff *skb, int code, int ipstats_mib_noroutes)
{
int type;
- struct dst_entry *dst = skb->dst;
+ struct dst_entry *dst = skb_dst(skb);
switch (ipstats_mib_noroutes) {
case IPSTATS_MIB_INNOROUTES:
type = ipv6_addr_type(&ipv6_hdr(skb)->daddr);
@@ -1895,7 +1895,7 @@ static int ip6_pkt_discard(struct sk_buff *skb)
static int ip6_pkt_discard_out(struct sk_buff *skb)
{
- skb->dev = skb->dst->dev;
+ skb->dev = skb_dst(skb)->dev;
return ip6_pkt_drop(skb, ICMPV6_NOROUTE, IPSTATS_MIB_OUTNOROUTES);
}
@@ -1908,7 +1908,7 @@ static int ip6_pkt_prohibit(struct sk_buff *skb)
static int ip6_pkt_prohibit_out(struct sk_buff *skb)
{
- skb->dev = skb->dst->dev;
+ skb->dev = skb_dst(skb)->dev;
return ip6_pkt_drop(skb, ICMPV6_ADM_PROHIBITED, IPSTATS_MIB_OUTNOROUTES);
}
@@ -2366,7 +2366,7 @@ static int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
skb_reserve(skb, MAX_HEADER + sizeof(struct ipv6hdr));
rt = (struct rt6_info*) ip6_route_output(net, NULL, &fl);
- skb->dst = &rt->u.dst;
+ skb_dst_set(skb, &rt->u.dst);
err = rt6_fill_node(net, skb, rt, &fl.fl6_dst, &fl.fl6_src, iif,
RTM_NEWROUTE, NETLINK_CB(in_skb).pid,
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index b3a59bd40f0..68e52308e55 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -575,8 +575,7 @@ static int ipip6_rcv(struct sk_buff *skb)
tunnel->dev->stats.rx_packets++;
tunnel->dev->stats.rx_bytes += skb->len;
skb->dev = tunnel->dev;
- dst_release(skb->dst);
- skb->dst = NULL;
+ skb_dst_drop(skb);
nf_reset(skb);
ipip6_ecn_decapsulate(iph, skb);
netif_rx(skb);
@@ -638,8 +637,8 @@ static int ipip6_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
if (dev->priv_flags & IFF_ISATAP) {
struct neighbour *neigh = NULL;
- if (skb->dst)
- neigh = skb->dst->neighbour;
+ if (skb_dst(skb))
+ neigh = skb_dst(skb)->neighbour;
if (neigh == NULL) {
if (net_ratelimit())
@@ -663,8 +662,8 @@ static int ipip6_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
if (!dst) {
struct neighbour *neigh = NULL;
- if (skb->dst)
- neigh = skb->dst->neighbour;
+ if (skb_dst(skb))
+ neigh = skb_dst(skb)->neighbour;
if (neigh == NULL) {
if (net_ratelimit())
@@ -714,7 +713,7 @@ static int ipip6_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
if (tiph->frag_off)
mtu = dst_mtu(&rt->u.dst) - sizeof(struct iphdr);
else
- mtu = skb->dst ? dst_mtu(skb->dst) : dev->mtu;
+ mtu = skb_dst(skb) ? dst_mtu(skb_dst(skb)) : dev->mtu;
if (mtu < 68) {
stats->collisions++;
@@ -723,8 +722,8 @@ static int ipip6_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
}
if (mtu < IPV6_MIN_MTU)
mtu = IPV6_MIN_MTU;
- if (tunnel->parms.iph.daddr && skb->dst)
- skb->dst->ops->update_pmtu(skb->dst, mtu);
+ if (tunnel->parms.iph.daddr && skb_dst(skb))
+ skb_dst(skb)->ops->update_pmtu(skb_dst(skb), mtu);
if (skb->len > mtu) {
icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu, dev);
@@ -768,8 +767,8 @@ static int ipip6_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
skb_reset_network_header(skb);
memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
IPCB(skb)->flags = 0;
- dst_release(skb->dst);
- skb->dst = &rt->u.dst;
+ skb_dst_drop(skb);
+ skb_dst_set(skb, &rt->u.dst);
/*
* Push down and install the IPIP header.
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index ea37741062a..53b6a4192b1 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -981,9 +981,10 @@ static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win,
struct tcphdr *th = tcp_hdr(skb), *t1;
struct sk_buff *buff;
struct flowi fl;
- struct net *net = dev_net(skb->dst->dev);
+ struct net *net = dev_net(skb_dst(skb)->dev);
struct sock *ctl_sk = net->ipv6.tcp_sk;
unsigned int tot_len = sizeof(struct tcphdr);
+ struct dst_entry *dst;
__be32 *topt;
if (ts)
@@ -1052,8 +1053,9 @@ static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win,
* Underlying function will use this to retrieve the network
* namespace
*/
- if (!ip6_dst_lookup(ctl_sk, &buff->dst, &fl)) {
- if (xfrm_lookup(net, &buff->dst, &fl, NULL, 0) >= 0) {
+ if (!ip6_dst_lookup(ctl_sk, &dst, &fl)) {
+ if (xfrm_lookup(net, &dst, &fl, NULL, 0) >= 0) {
+ skb_dst_set(buff, dst);
ip6_xmit(ctl_sk, buff, &fl, NULL, 0);
TCP_INC_STATS_BH(net, TCP_MIB_OUTSEGS);
if (rst)
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 8905712cfbb..fc333d85472 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -177,10 +177,9 @@ static struct sock *__udp6_lib_lookup_skb(struct sk_buff *skb,
if (unlikely(sk = skb_steal_sock(skb)))
return sk;
- else
- return __udp6_lib_lookup(dev_net(skb->dst->dev), &iph->saddr, sport,
- &iph->daddr, dport, inet6_iif(skb),
- udptable);
+ return __udp6_lib_lookup(dev_net(skb_dst(skb)->dev), &iph->saddr, sport,
+ &iph->daddr, dport, inet6_iif(skb),
+ udptable);
}
/*
diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c
index e20529b4c82..3927832227b 100644
--- a/net/ipv6/xfrm6_mode_tunnel.c
+++ b/net/ipv6/xfrm6_mode_tunnel.c
@@ -31,7 +31,7 @@ static inline void ipip6_ecn_decapsulate(struct sk_buff *skb)
*/
static int xfrm6_mode_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
{
- struct dst_entry *dst = skb->dst;
+ struct dst_entry *dst = skb_dst(skb);
struct ipv6hdr *top_iph;
int dsfield;
@@ -45,7 +45,7 @@ static int xfrm6_mode_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
memcpy(top_iph->flow_lbl, XFRM_MODE_SKB_CB(skb)->flow_lbl,
sizeof(top_iph->flow_lbl));
- top_iph->nexthdr = xfrm_af2proto(skb->dst->ops->family);
+ top_iph->nexthdr = xfrm_af2proto(skb_dst(skb)->ops->family);
dsfield = XFRM_MODE_SKB_CB(skb)->tos;
dsfield = INET_ECN_encapsulate(dsfield, dsfield);
diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index 5ee5a031bc9..c4f4eef032a 100644
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -30,7 +30,7 @@ EXPORT_SYMBOL(xfrm6_find_1stfragopt);
static int xfrm6_tunnel_check_size(struct sk_buff *skb)
{
int mtu, ret = 0;
- struct dst_entry *dst = skb->dst;
+ struct dst_entry *dst = skb_dst(skb);
mtu = dst_mtu(dst);
if (mtu < IPV6_MIN_MTU)
@@ -90,6 +90,6 @@ static int xfrm6_output_finish(struct sk_buff *skb)
int xfrm6_output(struct sk_buff *skb)
{
- return NF_HOOK(PF_INET6, NF_INET_POST_ROUTING, skb, NULL, skb->dst->dev,
+ return NF_HOOK(PF_INET6, NF_INET_POST_ROUTING, skb, NULL, skb_dst(skb)->dev,
xfrm6_output_finish);
}
diff --git a/net/irda/irlap_frame.c b/net/irda/irlap_frame.c
index 2562ebc1b22..7af2e74deda 100644
--- a/net/irda/irlap_frame.c
+++ b/net/irda/irlap_frame.c
@@ -982,17 +982,12 @@ void irlap_resend_rejected_frames(struct irlap_cb *self, int command)
{
struct sk_buff *tx_skb;
struct sk_buff *skb;
- int count;
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == LAP_MAGIC, return;);
- /* Initialize variables */
- count = skb_queue_len(&self->wx_list);
-
/* Resend unacknowledged frame(s) */
- skb = skb_peek(&self->wx_list);
- while (skb != NULL) {
+ skb_queue_walk(&self->wx_list, skb) {
irlap_wait_min_turn_around(self, &self->qos_tx);
/* We copy the skb to be retransmitted since we will have to
@@ -1011,21 +1006,12 @@ void irlap_resend_rejected_frames(struct irlap_cb *self, int command)
/*
* Set poll bit on the last frame retransmitted
*/
- if (count-- == 1)
+ if (skb_queue_is_last(&self->wx_list, skb))
tx_skb->data[1] |= PF_BIT; /* Set p/f bit */
else
tx_skb->data[1] &= ~PF_BIT; /* Clear p/f bit */
irlap_send_i_frame(self, tx_skb, command);
-
- /*
- * If our skb is the last buffer in the list, then
- * we are finished, if not, move to the next sk-buffer
- */
- if (skb == skb_peek_tail(&self->wx_list))
- skb = NULL;
- else
- skb = skb->next;
}
#if 0 /* Not yet */
/*
diff --git a/net/llc/llc_conn.c b/net/llc/llc_conn.c
index 3477624a490..c6bab39b018 100644
--- a/net/llc/llc_conn.c
+++ b/net/llc/llc_conn.c
@@ -79,10 +79,6 @@ int llc_conn_state_process(struct sock *sk, struct sk_buff *skb)
if (unlikely(!ev->ind_prim && !ev->cfm_prim)) {
/* indicate or confirm not required */
- /* XXX this is not very pretty, perhaps we should store
- * XXX indicate/confirm-needed state in the llc_conn_state_ev
- * XXX control block of the SKB instead? -DaveM
- */
if (!skb->next)
goto out_kfree_skb;
goto out_skb_put;
diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig
index 9cbf545e95a..ba2643a43c7 100644
--- a/net/mac80211/Kconfig
+++ b/net/mac80211/Kconfig
@@ -1,16 +1,19 @@
config MAC80211
tristate "Generic IEEE 802.11 Networking Stack (mac80211)"
+ depends on CFG80211
select CRYPTO
select CRYPTO_ECB
select CRYPTO_ARC4
select CRYPTO_AES
select CRC32
select WIRELESS_EXT
- select CFG80211
---help---
This option enables the hardware independent IEEE 802.11
networking stack.
+comment "CFG80211 needs to be enabled for MAC80211"
+ depends on CFG80211=n
+
config MAC80211_DEFAULT_PS
bool "enable powersave by default"
depends on MAC80211
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 43d00ffd398..9e5762ad307 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -132,6 +132,9 @@ static int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
state = &sta->ampdu_mlme.tid_state_tx[tid];
+ if (*state == HT_AGG_STATE_OPERATIONAL)
+ sta->ampdu_mlme.addba_req_num[tid] = 0;
+
*state = HT_AGG_STATE_REQ_STOP_BA_MSK |
(initiator << HT_AGG_STATE_INITIATOR_SHIFT);
@@ -337,6 +340,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
sta->ampdu_mlme.tid_tx[tid]->dialog_token,
sta->ampdu_mlme.tid_tx[tid]->ssn,
0x40, 5000);
+ sta->ampdu_mlme.addba_req_num[tid]++;
/* activate the timer for the recipient's addBA response */
sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.expires =
jiffies + ADDBA_RESP_INTERVAL;
@@ -606,7 +610,6 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid)
*state = HT_AGG_STATE_IDLE;
/* from now on packets are no longer put onto sta->pending */
- sta->ampdu_mlme.addba_req_num[tid] = 0;
kfree(sta->ampdu_mlme.tid_tx[tid]);
sta->ampdu_mlme.tid_tx[tid] = NULL;
@@ -689,7 +692,6 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local,
sta->ampdu_mlme.addba_req_num[tid] = 0;
} else {
- sta->ampdu_mlme.addba_req_num[tid]++;
___ieee80211_stop_tx_ba_session(sta, tid, WLAN_BACK_INITIATOR);
}
spin_unlock_bh(&sta->lock);
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 77e9ff5ec4f..3f47276caeb 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -664,18 +664,19 @@ static void sta_apply_parameters(struct ieee80211_local *local,
spin_unlock_bh(&sta->lock);
/*
+ * cfg80211 validates this (1-2007) and allows setting the AID
+ * only when creating a new station entry
+ */
+ if (params->aid)
+ sta->sta.aid = params->aid;
+
+ /*
* FIXME: updating the following information is racy when this
* function is called from ieee80211_change_station().
* However, all this information should be static so
* maybe we should just reject attemps to change it.
*/
- if (params->aid) {
- sta->sta.aid = params->aid;
- if (sta->sta.aid > IEEE80211_MAX_AID)
- sta->sta.aid = 0; /* XXX: should this be an error? */
- }
-
if (params->listen_interval >= 0)
sta->listen_interval = params->listen_interval;
@@ -1121,8 +1122,8 @@ static int ieee80211_set_txq_params(struct wiphy *wiphy,
p.txop = params->txop;
if (drv_conf_tx(local, params->queue, &p)) {
printk(KERN_DEBUG "%s: failed to set TX queue "
- "parameters for queue %d\n", local->mdev->name,
- params->queue);
+ "parameters for queue %d\n",
+ wiphy_name(local->hw.wiphy), params->queue);
return -EINVAL;
}
@@ -1255,7 +1256,7 @@ static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
sdata->u.mgd.flags |= IEEE80211_STA_AUTO_SSID_SEL;
ret = ieee80211_sta_set_extra_ie(sdata, req->ie, req->ie_len);
- if (ret)
+ if (ret && ret != -EALREADY)
return ret;
if (req->use_mfp) {
@@ -1333,6 +1334,53 @@ static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
return 0;
}
+static int ieee80211_set_tx_power(struct wiphy *wiphy,
+ enum tx_power_setting type, int dbm)
+{
+ struct ieee80211_local *local = wiphy_priv(wiphy);
+ struct ieee80211_channel *chan = local->hw.conf.channel;
+ u32 changes = 0;
+
+ switch (type) {
+ case TX_POWER_AUTOMATIC:
+ local->user_power_level = -1;
+ break;
+ case TX_POWER_LIMITED:
+ if (dbm < 0)
+ return -EINVAL;
+ local->user_power_level = dbm;
+ break;
+ case TX_POWER_FIXED:
+ if (dbm < 0)
+ return -EINVAL;
+ /* TODO: move to cfg80211 when it knows the channel */
+ if (dbm > chan->max_power)
+ return -EINVAL;
+ local->user_power_level = dbm;
+ break;
+ }
+
+ ieee80211_hw_config(local, changes);
+
+ return 0;
+}
+
+static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
+{
+ struct ieee80211_local *local = wiphy_priv(wiphy);
+
+ *dbm = local->hw.conf.power_level;
+
+ return 0;
+}
+
+static void ieee80211_rfkill_poll(struct wiphy *wiphy)
+{
+ struct ieee80211_local *local = wiphy_priv(wiphy);
+
+ drv_rfkill_poll(local);
+}
+
struct cfg80211_ops mac80211_config_ops = {
.add_virtual_intf = ieee80211_add_iface,
.del_virtual_intf = ieee80211_del_iface,
@@ -1372,4 +1420,7 @@ struct cfg80211_ops mac80211_config_ops = {
.join_ibss = ieee80211_join_ibss,
.leave_ibss = ieee80211_leave_ibss,
.set_wiphy_params = ieee80211_set_wiphy_params,
+ .set_tx_power = ieee80211_set_tx_power,
+ .get_tx_power = ieee80211_get_tx_power,
+ .rfkill_poll = ieee80211_rfkill_poll,
};
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 3912b5334b9..b13446afd48 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -181,4 +181,11 @@ static inline int drv_ampdu_action(struct ieee80211_local *local,
sta, tid, ssn);
return -EOPNOTSUPP;
}
+
+
+static inline void drv_rfkill_poll(struct ieee80211_local *local)
+{
+ if (local->ops->rfkill_poll)
+ local->ops->rfkill_poll(&local->hw);
+}
#endif /* __MAC80211_DRIVER_OPS */
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index c088c46704a..4dbc2896419 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -589,6 +589,7 @@ enum queue_stop_reason {
IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
IEEE80211_QUEUE_STOP_REASON_SUSPEND,
IEEE80211_QUEUE_STOP_REASON_PENDING,
+ IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
};
struct ieee80211_master_priv {
@@ -1121,6 +1122,10 @@ void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
enum queue_stop_reason reason);
void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
enum queue_stop_reason reason);
+void ieee80211_add_pending_skb(struct ieee80211_local *local,
+ struct sk_buff *skb);
+int ieee80211_add_pending_skbs(struct ieee80211_local *local,
+ struct sk_buff_head *skbs);
void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
u16 transaction, u16 auth_alg,
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 8c9f1c722cd..b7c8a448429 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -170,7 +170,7 @@ static int ieee80211_open(struct net_device *dev)
goto err_del_bss;
/* we're brought up, everything changes */
hw_reconf_flags = ~0;
- ieee80211_led_radio(local, local->hw.conf.radio_enabled);
+ ieee80211_led_radio(local, true);
}
/*
@@ -560,7 +560,7 @@ static int ieee80211_stop(struct net_device *dev)
drv_stop(local);
- ieee80211_led_radio(local, 0);
+ ieee80211_led_radio(local, false);
flush_workqueue(local->hw.workqueue);
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 6b7e92eaab4..092a017b237 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -289,16 +289,8 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
drv_bss_info_changed(local, &sdata->vif,
&sdata->vif.bss_conf, changed);
- /*
- * DEPRECATED
- *
- * ~changed is just there to not do this at resume time
- */
- if (changed & BSS_CHANGED_BEACON_INT && ~changed) {
- local->hw.conf.beacon_int = sdata->vif.bss_conf.beacon_int;
- ieee80211_hw_config(local,
- _IEEE80211_CONF_CHANGE_BEACON_INTERVAL);
- }
+ /* DEPRECATED */
+ local->hw.conf.beacon_int = sdata->vif.bss_conf.beacon_int;
}
u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata)
@@ -377,60 +369,12 @@ static void ieee80211_tasklet_handler(unsigned long data)
}
}
-/* Remove added headers (e.g., QoS control), encryption header/MIC, etc. to
- * make a prepared TX frame (one that has been given to hw) to look like brand
- * new IEEE 802.11 frame that is ready to go through TX processing again.
- */
-static void ieee80211_remove_tx_extra(struct ieee80211_local *local,
- struct ieee80211_key *key,
- struct sk_buff *skb)
-{
- unsigned int hdrlen, iv_len, mic_len;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-
- hdrlen = ieee80211_hdrlen(hdr->frame_control);
-
- if (!key)
- goto no_key;
-
- switch (key->conf.alg) {
- case ALG_WEP:
- iv_len = WEP_IV_LEN;
- mic_len = WEP_ICV_LEN;
- break;
- case ALG_TKIP:
- iv_len = TKIP_IV_LEN;
- mic_len = TKIP_ICV_LEN;
- break;
- case ALG_CCMP:
- iv_len = CCMP_HDR_LEN;
- mic_len = CCMP_MIC_LEN;
- break;
- default:
- goto no_key;
- }
-
- if (skb->len >= hdrlen + mic_len &&
- !(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
- skb_trim(skb, skb->len - mic_len);
- if (skb->len >= hdrlen + iv_len) {
- memmove(skb->data + iv_len, skb->data, hdrlen);
- hdr = (struct ieee80211_hdr *)skb_pull(skb, iv_len);
- }
-
-no_key:
- if (ieee80211_is_data_qos(hdr->frame_control)) {
- hdr->frame_control &= ~cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
- memmove(skb->data + IEEE80211_QOS_CTL_LEN, skb->data,
- hdrlen - IEEE80211_QOS_CTL_LEN);
- skb_pull(skb, IEEE80211_QOS_CTL_LEN);
- }
-}
-
static void ieee80211_handle_filtered_frame(struct ieee80211_local *local,
struct sta_info *sta,
struct sk_buff *skb)
{
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+
sta->tx_filtered_count++;
/*
@@ -472,16 +416,15 @@ static void ieee80211_handle_filtered_frame(struct ieee80211_local *local,
*/
if (test_sta_flags(sta, WLAN_STA_PS) &&
skb_queue_len(&sta->tx_filtered) < STA_MAX_TX_BUFFER) {
- ieee80211_remove_tx_extra(local, sta->key, skb);
skb_queue_tail(&sta->tx_filtered, skb);
return;
}
- if (!test_sta_flags(sta, WLAN_STA_PS) && !skb->requeue) {
+ if (!test_sta_flags(sta, WLAN_STA_PS) &&
+ !(info->flags & IEEE80211_TX_INTFL_RETRIED)) {
/* Software retry the packet once */
- skb->requeue = 1;
- ieee80211_remove_tx_extra(local, sta->key, skb);
- dev_queue_xmit(skb);
+ info->flags |= IEEE80211_TX_INTFL_RETRIED;
+ ieee80211_add_pending_skb(local, skb);
return;
}
@@ -735,9 +678,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
* +-------------------------+
*
*/
- priv_size = ((sizeof(struct ieee80211_local) +
- NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST) +
- priv_data_len;
+ priv_size = ALIGN(sizeof(*local), NETDEV_ALIGN) + priv_data_len;
wiphy = wiphy_new(&mac80211_config_ops, priv_size);
@@ -754,9 +695,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
local->hw.wiphy = wiphy;
- local->hw.priv = (char *)local +
- ((sizeof(struct ieee80211_local) +
- NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST);
+ local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN);
BUG_ON(!ops->tx);
BUG_ON(!ops->start);
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 509469cb926..d779c57a822 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -621,9 +621,6 @@ static void ieee80211_change_ps(struct ieee80211_local *local)
struct ieee80211_conf *conf = &local->hw.conf;
if (local->ps_sdata) {
- if (!(local->ps_sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED))
- return;
-
ieee80211_enable_ps(local, local->ps_sdata);
} else if (conf->flags & IEEE80211_CONF_PS) {
conf->flags &= ~IEEE80211_CONF_PS;
@@ -653,7 +650,9 @@ void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency)
count++;
}
- if (count == 1 && found->u.mgd.powersave) {
+ if (count == 1 && found->u.mgd.powersave &&
+ (found->u.mgd.flags & IEEE80211_STA_ASSOCIATED) &&
+ !(found->u.mgd.flags & IEEE80211_STA_PROBEREQ_POLL)) {
s32 beaconint_us;
if (latency < 0)
@@ -793,13 +792,13 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
printk(KERN_DEBUG "%s: WMM queue=%d aci=%d acm=%d aifs=%d "
"cWmin=%d cWmax=%d txop=%d\n",
- local->mdev->name, queue, aci, acm, params.aifs, params.cw_min,
- params.cw_max, params.txop);
+ wiphy_name(local->hw.wiphy), queue, aci, acm,
+ params.aifs, params.cw_min, params.cw_max, params.txop);
#endif
if (drv_conf_tx(local, queue, &params) && local->ops->conf_tx)
printk(KERN_DEBUG "%s: failed to set TX queue "
- "parameters for queue %d\n", local->mdev->name,
- queue);
+ "parameters for queue %d\n",
+ wiphy_name(local->hw.wiphy), queue);
}
}
@@ -1322,6 +1321,11 @@ void ieee80211_beacon_loss_work(struct work_struct *work)
#endif
ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL;
+
+ mutex_lock(&sdata->local->iflist_mtx);
+ ieee80211_recalc_ps(sdata->local, -1);
+ mutex_unlock(&sdata->local->iflist_mtx);
+
ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
ifmgd->ssid_len, NULL, 0);
@@ -1342,6 +1346,7 @@ static void ieee80211_associated(struct ieee80211_sub_if_data *sdata)
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
+ unsigned long last_rx;
bool disassoc = false;
/* TODO: start monitoring current AP signal quality and number of
@@ -1358,17 +1363,21 @@ static void ieee80211_associated(struct ieee80211_sub_if_data *sdata)
printk(KERN_DEBUG "%s: No STA entry for own AP %pM\n",
sdata->dev->name, ifmgd->bssid);
disassoc = true;
- goto unlock;
+ rcu_read_unlock();
+ goto out;
}
+ last_rx = sta->last_rx;
+ rcu_read_unlock();
+
if ((ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL) &&
- time_after(jiffies, sta->last_rx + IEEE80211_PROBE_WAIT)) {
+ time_after(jiffies, last_rx + IEEE80211_PROBE_WAIT)) {
printk(KERN_DEBUG "%s: no probe response from AP %pM "
"- disassociating\n",
sdata->dev->name, ifmgd->bssid);
disassoc = true;
ifmgd->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
- goto unlock;
+ goto out;
}
/*
@@ -1387,26 +1396,29 @@ static void ieee80211_associated(struct ieee80211_sub_if_data *sdata)
}
#endif
ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL;
+ mutex_lock(&local->iflist_mtx);
+ ieee80211_recalc_ps(local, -1);
+ mutex_unlock(&local->iflist_mtx);
ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
ifmgd->ssid_len, NULL, 0);
mod_timer(&ifmgd->timer, jiffies + IEEE80211_PROBE_WAIT);
- goto unlock;
+ goto out;
}
- if (time_after(jiffies, sta->last_rx + IEEE80211_PROBE_IDLE_TIME)) {
+ if (time_after(jiffies, last_rx + IEEE80211_PROBE_IDLE_TIME)) {
ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL;
+ mutex_lock(&local->iflist_mtx);
+ ieee80211_recalc_ps(local, -1);
+ mutex_unlock(&local->iflist_mtx);
ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
ifmgd->ssid_len, NULL, 0);
}
+ out:
if (!disassoc)
mod_timer(&ifmgd->timer,
jiffies + IEEE80211_MONITORING_INTERVAL);
-
- unlock:
- rcu_read_unlock();
-
- if (disassoc)
+ else
ieee80211_set_disassoc(sdata, true, true,
WLAN_REASON_PREV_AUTH_NOT_VALID);
}
@@ -1889,8 +1901,12 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
ieee80211_authenticate(sdata);
}
- if (ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL)
+ if (ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL) {
ifmgd->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
+ mutex_lock(&sdata->local->iflist_mtx);
+ ieee80211_recalc_ps(sdata->local, -1);
+ mutex_unlock(&sdata->local->iflist_mtx);
+ }
}
/*
@@ -1948,6 +1964,9 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
}
#endif
ifmgd->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
+ mutex_lock(&local->iflist_mtx);
+ ieee80211_recalc_ps(local, -1);
+ mutex_unlock(&local->iflist_mtx);
}
ncrc = crc32_be(0, (void *)&mgmt->u.beacon.beacon_int, 4);
diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c
index 0a11515341b..b218b98fba7 100644
--- a/net/mac80211/rc80211_minstrel.c
+++ b/net/mac80211/rc80211_minstrel.c
@@ -215,7 +215,7 @@ minstrel_get_next_sample(struct minstrel_sta_info *mi)
unsigned int sample_ndx;
sample_ndx = SAMPLE_TBL(mi, mi->sample_idx, mi->sample_column);
mi->sample_idx++;
- if (mi->sample_idx > (mi->n_rates - 2)) {
+ if ((int) mi->sample_idx > (mi->n_rates - 2)) {
mi->sample_idx = 0;
mi->sample_column++;
if (mi->sample_column >= SAMPLE_COLUMNS)
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 6a9b8e63a6b..de5bba7f910 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -797,8 +797,7 @@ static int ap_sta_ps_end(struct sta_info *sta)
{
struct ieee80211_sub_if_data *sdata = sta->sdata;
struct ieee80211_local *local = sdata->local;
- struct sk_buff *skb;
- int sent = 0;
+ int sent, buffered;
atomic_dec(&sdata->bss->num_sta_ps);
@@ -814,22 +813,16 @@ static int ap_sta_ps_end(struct sta_info *sta)
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
/* Send all buffered frames to the station */
- while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
- sent++;
- skb->requeue = 1;
- dev_queue_xmit(skb);
- }
- while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
- local->total_ps_buffered--;
- sent++;
+ sent = ieee80211_add_pending_skbs(local, &sta->tx_filtered);
+ buffered = ieee80211_add_pending_skbs(local, &sta->ps_tx_buf);
+ sent += buffered;
+ local->total_ps_buffered -= buffered;
+
#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "%s: STA %pM aid %d send PS frame "
- "since STA not sleeping anymore\n", sdata->dev->name,
- sta->sta.addr, sta->sta.aid);
+ printk(KERN_DEBUG "%s: STA %pM aid %d sending %d filtered/%d PS frames "
+ "since STA not sleeping anymore\n", sdata->dev->name,
+ sta->sta.addr, sta->sta.aid, sent - buffered, buffered);
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
- skb->requeue = 1;
- dev_queue_xmit(skb);
- }
return sent;
}
@@ -1335,7 +1328,7 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx)
* mac80211. That also explains the __skb_push()
* below.
*/
- align = (unsigned long)skb->data & 3;
+ align = ((unsigned long)(skb->data + sizeof(struct ethhdr))) & 3;
if (align) {
if (WARN_ON(skb_headroom(skb) < 3)) {
dev_kfree_skb(skb);
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index d5611d8fd0d..a360bceeba5 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -44,6 +44,15 @@
* When the insertion fails (sta_info_insert()) returns non-zero), the
* structure will have been freed by sta_info_insert()!
*
+ * sta entries are added by mac80211 when you establish a link with a
+ * peer. This means different things for the different type of interfaces
+ * we support. For a regular station this mean we add the AP sta when we
+ * receive an assocation response from the AP. For IBSS this occurs when
+ * we receive a probe response or a beacon from target IBSS network. For
+ * WDS we add the sta for the peer imediately upon device open. When using
+ * AP mode we add stations for each respective station upon request from
+ * userspace through nl80211.
+ *
* Because there are debugfs entries for each station, and adding those
* must be able to sleep, it is also possible to "pin" a station entry,
* that means it can be removed from the hash table but not be freed.
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index a910148b822..364222bfb10 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -400,6 +400,7 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
sta_info_set_tim_bit(sta);
info->control.jiffies = jiffies;
+ info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
skb_queue_tail(&sta->ps_tx_buf, tx->skb);
return TX_QUEUED;
}
@@ -420,7 +421,7 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
* frame filtering and keeps a station blacklist on its own
* (e.g: p54), so that frames can be delivered unimpeded.
*
- * Note: It should be save to disable the filter now.
+ * Note: It should be safe to disable the filter now.
* As, it is really unlikely that we still have any pending
* frame for this station in the hw's buffers/fifos left,
* that is not rejected with a unsuccessful tx_status yet.
@@ -907,9 +908,8 @@ ieee80211_tx_h_stats(struct ieee80211_tx_data *tx)
* deal with packet injection down monitor interface
* with Radiotap Header -- only called for monitor mode interface
*/
-static ieee80211_tx_result
-__ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
- struct sk_buff *skb)
+static bool __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
+ struct sk_buff *skb)
{
/*
* this is the moment to interpret and discard the radiotap header that
@@ -960,7 +960,7 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
* on transmission
*/
if (skb->len < (iterator.max_length + FCS_LEN))
- return TX_DROP;
+ return false;
skb_trim(skb, skb->len - FCS_LEN);
}
@@ -982,7 +982,7 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
}
if (ret != -ENOENT) /* ie, if we didn't simply run out of fields */
- return TX_DROP;
+ return false;
/*
* remove the radiotap header
@@ -991,7 +991,7 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
*/
skb_pull(skb, iterator.max_length);
- return TX_CONTINUE;
+ return true;
}
/*
@@ -1025,7 +1025,7 @@ __ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
/* process and remove the injection radiotap header */
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (unlikely(info->flags & IEEE80211_TX_CTL_INJECTED)) {
- if (__ieee80211_parse_tx_radiotap(tx, skb) == TX_DROP)
+ if (!__ieee80211_parse_tx_radiotap(tx, skb))
return TX_DROP;
/*
@@ -1238,7 +1238,6 @@ static void ieee80211_tx(struct net_device *dev, struct sk_buff *skb,
bool txpending)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
struct ieee80211_tx_data tx;
ieee80211_tx_result res_prepare;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
@@ -1270,7 +1269,6 @@ static void ieee80211_tx(struct net_device *dev, struct sk_buff *skb,
return;
}
- sta = tx.sta;
tx.channel = local->hw.conf.channel;
info->band = tx.channel->band;
@@ -1417,7 +1415,8 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
}
if ((local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) &&
- local->hw.conf.dynamic_ps_timeout > 0) {
+ local->hw.conf.dynamic_ps_timeout > 0 &&
+ !local->sw_scanning && !local->hw_scanning && local->ps_sdata) {
if (local->hw.conf.flags & IEEE80211_CONF_PS) {
ieee80211_stop_queues_by_reason(&local->hw,
IEEE80211_QUEUE_STOP_REASON_PS);
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 949d857debd..66ce96a69f3 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -341,6 +341,52 @@ void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue)
}
EXPORT_SYMBOL(ieee80211_stop_queue);
+void ieee80211_add_pending_skb(struct ieee80211_local *local,
+ struct sk_buff *skb)
+{
+ struct ieee80211_hw *hw = &local->hw;
+ unsigned long flags;
+ int queue = skb_get_queue_mapping(skb);
+
+ spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+ __ieee80211_stop_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD);
+ __ieee80211_stop_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_PENDING);
+ skb_queue_tail(&local->pending[queue], skb);
+ __ieee80211_wake_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD);
+ spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+}
+
+int ieee80211_add_pending_skbs(struct ieee80211_local *local,
+ struct sk_buff_head *skbs)
+{
+ struct ieee80211_hw *hw = &local->hw;
+ struct sk_buff *skb;
+ unsigned long flags;
+ int queue, ret = 0, i;
+
+ spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+ for (i = 0; i < hw->queues; i++)
+ __ieee80211_stop_queue(hw, i,
+ IEEE80211_QUEUE_STOP_REASON_SKB_ADD);
+
+ while ((skb = skb_dequeue(skbs))) {
+ ret++;
+ queue = skb_get_queue_mapping(skb);
+ skb_queue_tail(&local->pending[queue], skb);
+ }
+
+ for (i = 0; i < hw->queues; i++) {
+ if (ret)
+ __ieee80211_stop_queue(hw, i,
+ IEEE80211_QUEUE_STOP_REASON_PENDING);
+ __ieee80211_wake_queue(hw, i,
+ IEEE80211_QUEUE_STOP_REASON_SKB_ADD);
+ }
+ spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+
+ return ret;
+}
+
void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
enum queue_stop_reason reason)
{
@@ -657,15 +703,15 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata)
switch (queue) {
case 3: /* AC_BK */
- qparam.cw_max = aCWmin;
- qparam.cw_min = aCWmax;
+ qparam.cw_max = aCWmax;
+ qparam.cw_min = aCWmin;
qparam.txop = 0;
qparam.aifs = 7;
break;
default: /* never happens but let's not leave undefined */
case 2: /* AC_BE */
- qparam.cw_max = aCWmin;
- qparam.cw_min = aCWmax;
+ qparam.cw_max = aCWmax;
+ qparam.cw_min = aCWmin;
qparam.txop = 0;
qparam.aifs = 3;
break;
@@ -973,7 +1019,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
if (local->open_count) {
res = drv_start(local);
- ieee80211_led_radio(local, hw->conf.radio_enabled);
+ ieee80211_led_radio(local, true);
}
/* add interfaces */
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index a01154e127f..d2d81b10334 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -306,82 +306,6 @@ static int ieee80211_ioctl_giwrate(struct net_device *dev,
return 0;
}
-static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *data, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_channel* chan = local->hw.conf.channel;
- bool reconf = false;
- u32 reconf_flags = 0;
- int new_power_level;
-
- if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
- return -EINVAL;
- if (data->txpower.flags & IW_TXPOW_RANGE)
- return -EINVAL;
- if (!chan)
- return -EINVAL;
-
- /* only change when not disabling */
- if (!data->txpower.disabled) {
- if (data->txpower.fixed) {
- if (data->txpower.value < 0)
- return -EINVAL;
- new_power_level = data->txpower.value;
- /*
- * Debatable, but we cannot do a fixed power
- * level above the regulatory constraint.
- * Use "iwconfig wlan0 txpower 15dBm" instead.
- */
- if (new_power_level > chan->max_power)
- return -EINVAL;
- } else {
- /*
- * Automatic power level setting, max being the value
- * passed in from userland.
- */
- if (data->txpower.value < 0)
- new_power_level = -1;
- else
- new_power_level = data->txpower.value;
- }
-
- reconf = true;
-
- /*
- * ieee80211_hw_config() will limit to the channel's
- * max power and possibly power constraint from AP.
- */
- local->user_power_level = new_power_level;
- }
-
- if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
- local->hw.conf.radio_enabled = !(data->txpower.disabled);
- reconf_flags |= IEEE80211_CONF_CHANGE_RADIO_ENABLED;
- ieee80211_led_radio(local, local->hw.conf.radio_enabled);
- }
-
- if (reconf || reconf_flags)
- ieee80211_hw_config(local, reconf_flags);
-
- return 0;
-}
-
-static int ieee80211_ioctl_giwtxpower(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *data, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- data->txpower.fixed = 1;
- data->txpower.disabled = !(local->hw.conf.radio_enabled);
- data->txpower.value = local->hw.conf.power_level;
- data->txpower.flags = IW_TXPOW_DBM;
-
- return 0;
-}
-
static int ieee80211_ioctl_siwpower(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *wrq,
@@ -658,8 +582,8 @@ static const iw_handler ieee80211_handler[] =
(iw_handler) cfg80211_wext_giwrts, /* SIOCGIWRTS */
(iw_handler) cfg80211_wext_siwfrag, /* SIOCSIWFRAG */
(iw_handler) cfg80211_wext_giwfrag, /* SIOCGIWFRAG */
- (iw_handler) ieee80211_ioctl_siwtxpower, /* SIOCSIWTXPOW */
- (iw_handler) ieee80211_ioctl_giwtxpower, /* SIOCGIWTXPOW */
+ (iw_handler) cfg80211_wext_siwtxpower, /* SIOCSIWTXPOW */
+ (iw_handler) cfg80211_wext_giwtxpower, /* SIOCGIWTXPOW */
(iw_handler) cfg80211_wext_siwretry, /* SIOCSIWRETRY */
(iw_handler) cfg80211_wext_giwretry, /* SIOCGIWRETRY */
(iw_handler) cfg80211_wext_siwencode, /* SIOCSIWENCODE */
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index 694343b9102..116a923b14d 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -101,7 +101,7 @@ u16 ieee80211_select_queue(struct net_device *dev, struct sk_buff *skb)
* Now we know the 1d priority, fill in the QoS header if
* there is one (and we haven't done this before).
*/
- if (!skb->requeue && ieee80211_is_data_qos(hdr->frame_control)) {
+ if (ieee80211_is_data_qos(hdr->frame_control)) {
u8 *p = ieee80211_get_qos_ctl(hdr);
u8 ack_policy = 0;
tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c
index 425ab144f15..5874657af7f 100644
--- a/net/netfilter/ipvs/ip_vs_xmit.c
+++ b/net/netfilter/ipvs/ip_vs_xmit.c
@@ -260,8 +260,8 @@ ip_vs_bypass_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
ip_send_check(ip_hdr(skb));
/* drop old route */
- dst_release(skb->dst);
- skb->dst = &rt->u.dst;
+ skb_dst_drop(skb);
+ skb_dst_set(skb, &rt->u.dst);
/* Another hack: avoid icmp_send in ip_fragment */
skb->local_df = 1;
@@ -324,8 +324,8 @@ ip_vs_bypass_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
}
/* drop old route */
- dst_release(skb->dst);
- skb->dst = &rt->u.dst;
+ skb_dst_drop(skb);
+ skb_dst_set(skb, &rt->u.dst);
/* Another hack: avoid icmp_send in ip_fragment */
skb->local_df = 1;
@@ -388,8 +388,8 @@ ip_vs_nat_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
goto tx_error_put;
/* drop old route */
- dst_release(skb->dst);
- skb->dst = &rt->u.dst;
+ skb_dst_drop(skb);
+ skb_dst_set(skb, &rt->u.dst);
/* mangle the packet */
if (pp->dnat_handler && !pp->dnat_handler(skb, pp, cp))
@@ -465,8 +465,8 @@ ip_vs_nat_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
goto tx_error_put;
/* drop old route */
- dst_release(skb->dst);
- skb->dst = &rt->u.dst;
+ skb_dst_drop(skb);
+ skb_dst_set(skb, &rt->u.dst);
/* mangle the packet */
if (pp->dnat_handler && !pp->dnat_handler(skb, pp, cp))
@@ -553,8 +553,8 @@ ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
IP_VS_DBG_RL("ip_vs_tunnel_xmit(): mtu less than 68\n");
goto tx_error;
}
- if (skb->dst)
- skb->dst->ops->update_pmtu(skb->dst, mtu);
+ if (skb_dst(skb))
+ skb_dst(skb)->ops->update_pmtu(skb_dst(skb), mtu);
df |= (old_iph->frag_off & htons(IP_DF));
@@ -596,8 +596,8 @@ ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
/* drop old route */
- dst_release(skb->dst);
- skb->dst = &rt->u.dst;
+ skb_dst_drop(skb);
+ skb_dst_set(skb, &rt->u.dst);
/*
* Push down and install the IPIP header.
@@ -665,8 +665,8 @@ ip_vs_tunnel_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
IP_VS_DBG_RL("ip_vs_tunnel_xmit_v6(): mtu less than 1280\n");
goto tx_error;
}
- if (skb->dst)
- skb->dst->ops->update_pmtu(skb->dst, mtu);
+ if (skb_dst(skb))
+ skb_dst(skb)->ops->update_pmtu(skb_dst(skb), mtu);
if (mtu < ntohs(old_iph->payload_len) + sizeof(struct ipv6hdr)) {
icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu, skb->dev);
@@ -702,8 +702,8 @@ ip_vs_tunnel_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
/* drop old route */
- dst_release(skb->dst);
- skb->dst = &rt->u.dst;
+ skb_dst_drop(skb);
+ skb_dst_set(skb, &rt->u.dst);
/*
* Push down and install the IPIP header.
@@ -775,8 +775,8 @@ ip_vs_dr_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
ip_send_check(ip_hdr(skb));
/* drop old route */
- dst_release(skb->dst);
- skb->dst = &rt->u.dst;
+ skb_dst_drop(skb);
+ skb_dst_set(skb, &rt->u.dst);
/* Another hack: avoid icmp_send in ip_fragment */
skb->local_df = 1;
@@ -828,8 +828,8 @@ ip_vs_dr_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
}
/* drop old route */
- dst_release(skb->dst);
- skb->dst = &rt->u.dst;
+ skb_dst_drop(skb);
+ skb_dst_set(skb, &rt->u.dst);
/* Another hack: avoid icmp_send in ip_fragment */
skb->local_df = 1;
@@ -900,8 +900,8 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
goto tx_error_put;
/* drop the old route when skb is not shared */
- dst_release(skb->dst);
- skb->dst = &rt->u.dst;
+ skb_dst_drop(skb);
+ skb_dst_set(skb, &rt->u.dst);
ip_vs_nat_icmp(skb, pp, cp, 0);
@@ -975,8 +975,8 @@ ip_vs_icmp_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
goto tx_error_put;
/* drop the old route when skb is not shared */
- dst_release(skb->dst);
- skb->dst = &rt->u.dst;
+ skb_dst_drop(skb);
+ skb_dst_set(skb, &rt->u.dst);
ip_vs_nat_icmp_v6(skb, pp, cp, 0);
diff --git a/net/netfilter/nf_conntrack_netbios_ns.c b/net/netfilter/nf_conntrack_netbios_ns.c
index 8a3875e36ec..497b2224536 100644
--- a/net/netfilter/nf_conntrack_netbios_ns.c
+++ b/net/netfilter/nf_conntrack_netbios_ns.c
@@ -48,7 +48,7 @@ static int help(struct sk_buff *skb, unsigned int protoff,
{
struct nf_conntrack_expect *exp;
struct iphdr *iph = ip_hdr(skb);
- struct rtable *rt = skb->rtable;
+ struct rtable *rt = skb_rtable(skb);
struct in_device *in_dev;
__be32 mask = 0;
diff --git a/net/netfilter/nf_conntrack_proto_dccp.c b/net/netfilter/nf_conntrack_proto_dccp.c
index 6b08d327796..1b816a2ea81 100644
--- a/net/netfilter/nf_conntrack_proto_dccp.c
+++ b/net/netfilter/nf_conntrack_proto_dccp.c
@@ -22,6 +22,7 @@
#include <linux/netfilter/nfnetlink_conntrack.h>
#include <net/netfilter/nf_conntrack.h>
#include <net/netfilter/nf_conntrack_l4proto.h>
+#include <net/netfilter/nf_conntrack_ecache.h>
#include <net/netfilter/nf_log.h>
/* Timeouts are based on values from RFC4340:
@@ -551,6 +552,9 @@ static int dccp_packet(struct nf_conn *ct, const struct sk_buff *skb,
ct->proto.dccp.state = new_state;
spin_unlock_bh(&ct->lock);
+ if (new_state != old_state)
+ nf_conntrack_event_cache(IPCT_PROTOINFO, ct);
+
dn = dccp_pernet(net);
nf_ct_refresh_acct(ct, ctinfo, skb, dn->dccp_timeout[new_state]);
diff --git a/net/netfilter/nf_conntrack_proto_gre.c b/net/netfilter/nf_conntrack_proto_gre.c
index 175a28c9616..a54a0af0edb 100644
--- a/net/netfilter/nf_conntrack_proto_gre.c
+++ b/net/netfilter/nf_conntrack_proto_gre.c
@@ -176,7 +176,7 @@ static bool gre_invert_tuple(struct nf_conntrack_tuple *tuple,
static bool gre_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff,
struct nf_conntrack_tuple *tuple)
{
- struct net *net = dev_net(skb->dev ? skb->dev : skb->dst->dev);
+ struct net *net = dev_net(skb->dev ? skb->dev : skb_dst(skb)->dev);
const struct gre_hdr_pptp *pgrehdr;
struct gre_hdr_pptp _pgrehdr;
__be16 srckey;
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index 5c5739c741f..5142e60af54 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -648,6 +648,14 @@ static bool tcp_in_window(const struct nf_conn *ct,
sender->td_end = end;
sender->flags |= IP_CT_TCP_FLAG_DATA_UNACKNOWLEDGED;
}
+ if (tcph->ack) {
+ if (!(sender->flags & IP_CT_TCP_FLAG_MAXACK_SET)) {
+ sender->td_maxack = ack;
+ sender->flags |= IP_CT_TCP_FLAG_MAXACK_SET;
+ } else if (after(ack, sender->td_maxack))
+ sender->td_maxack = ack;
+ }
+
/*
* Update receiver data.
*/
@@ -933,6 +941,16 @@ static int tcp_packet(struct nf_conn *ct,
return -NF_ACCEPT;
case TCP_CONNTRACK_CLOSE:
if (index == TCP_RST_SET
+ && (ct->proto.tcp.seen[!dir].flags & IP_CT_TCP_FLAG_MAXACK_SET)
+ && before(ntohl(th->seq), ct->proto.tcp.seen[!dir].td_maxack)) {
+ /* Invalid RST */
+ write_unlock_bh(&tcp_lock);
+ if (LOG_INVALID(net, IPPROTO_TCP))
+ nf_log_packet(pf, 0, skb, NULL, NULL, NULL,
+ "nf_ct_tcp: invalid RST ");
+ return -NF_ACCEPT;
+ }
+ if (index == TCP_RST_SET
&& ((test_bit(IPS_SEEN_REPLY_BIT, &ct->status)
&& ct->proto.tcp.last_index == TCP_SYN_SET)
|| (!test_bit(IPS_ASSURED_BIT, &ct->status)
diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index fd326ac27ec..66a6dd5c519 100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -581,6 +581,12 @@ nfulnl_log_packet(u_int8_t pf,
+ nla_total_size(sizeof(struct nfulnl_msg_packet_hw))
+ nla_total_size(sizeof(struct nfulnl_msg_packet_timestamp));
+ if (in && skb_mac_header_was_set(skb)) {
+ size += nla_total_size(skb->dev->hard_header_len)
+ + nla_total_size(sizeof(u_int16_t)) /* hwtype */
+ + nla_total_size(sizeof(u_int16_t)); /* hwlen */
+ }
+
spin_lock_bh(&inst->lock);
if (inst->flags & NFULNL_CFG_F_SEQ)
diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index 8c860112ce0..71daa0934b6 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -1,6 +1,6 @@
/*
* This is a module which is used for queueing packets and communicating with
- * userspace via nfetlink.
+ * userspace via nfnetlink.
*
* (C) 2005 by Harald Welte <laforge@netfilter.org>
* (C) 2007 by Patrick McHardy <kaber@trash.net>
@@ -932,6 +932,8 @@ static void __exit nfnetlink_queue_fini(void)
#endif
nfnetlink_subsys_unregister(&nfqnl_subsys);
netlink_unregister_notifier(&nfqnl_rtnl_notifier);
+
+ rcu_barrier(); /* Wait for completion of call_rcu()'s */
}
MODULE_DESCRIPTION("netfilter packet queue handler");
diff --git a/net/netfilter/xt_TCPMSS.c b/net/netfilter/xt_TCPMSS.c
index 4f3b1f80879..eda64c1cb1e 100644
--- a/net/netfilter/xt_TCPMSS.c
+++ b/net/netfilter/xt_TCPMSS.c
@@ -73,11 +73,11 @@ tcpmss_mangle_packet(struct sk_buff *skb,
}
if (info->mss == XT_TCPMSS_CLAMP_PMTU) {
- if (dst_mtu(skb->dst) <= minlen) {
+ if (dst_mtu(skb_dst(skb)) <= minlen) {
if (net_ratelimit())
printk(KERN_ERR "xt_TCPMSS: "
"unknown or invalid path-MTU (%u)\n",
- dst_mtu(skb->dst));
+ dst_mtu(skb_dst(skb)));
return -1;
}
if (in_mtu <= minlen) {
@@ -86,7 +86,7 @@ tcpmss_mangle_packet(struct sk_buff *skb,
"invalid path-MTU (%u)\n", in_mtu);
return -1;
}
- newmss = min(dst_mtu(skb->dst), in_mtu) - minlen;
+ newmss = min(dst_mtu(skb_dst(skb)), in_mtu) - minlen;
} else
newmss = info->mss;
diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c
index a5b5369c30f..219dcdbe388 100644
--- a/net/netfilter/xt_hashlimit.c
+++ b/net/netfilter/xt_hashlimit.c
@@ -926,7 +926,7 @@ static int dl_seq_show(struct seq_file *s, void *v)
if (!hlist_empty(&htable->hash[*bucket])) {
hlist_for_each_entry(ent, pos, &htable->hash[*bucket], node)
if (dl_seq_real_show(ent, htable->family, s))
- return 1;
+ return -1;
}
return 0;
}
diff --git a/net/netfilter/xt_policy.c b/net/netfilter/xt_policy.c
index 328bd20ddd2..4cbfebda8fa 100644
--- a/net/netfilter/xt_policy.c
+++ b/net/netfilter/xt_policy.c
@@ -86,7 +86,7 @@ match_policy_out(const struct sk_buff *skb, const struct xt_policy_info *info,
unsigned short family)
{
const struct xt_policy_elem *e;
- const struct dst_entry *dst = skb->dst;
+ const struct dst_entry *dst = skb_dst(skb);
int strict = info->flags & XT_POLICY_MATCH_STRICT;
int i, pos;
diff --git a/net/netfilter/xt_realm.c b/net/netfilter/xt_realm.c
index 67419287bc7..484d1689bfd 100644
--- a/net/netfilter/xt_realm.c
+++ b/net/netfilter/xt_realm.c
@@ -25,7 +25,7 @@ static bool
realm_mt(const struct sk_buff *skb, const struct xt_match_param *par)
{
const struct xt_realm_info *info = par->matchinfo;
- const struct dst_entry *dst = skb->dst;
+ const struct dst_entry *dst = skb_dst(skb);
return (info->id == (dst->tclassid & info->mask)) ^ info->invert;
}
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index c7c5d524967..4f76e5552d8 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -372,8 +372,7 @@ static int packet_rcv_spkt(struct sk_buff *skb, struct net_device *dev, struct
goto oom;
/* drop any routing info */
- dst_release(skb->dst);
- skb->dst = NULL;
+ skb_dst_drop(skb);
/* drop conntrack reference */
nf_reset(skb);
@@ -621,8 +620,7 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev, struct packet
skb_set_owner_r(skb, sk);
skb->dev = NULL;
- dst_release(skb->dst);
- skb->dst = NULL;
+ skb_dst_drop(skb);
/* drop conntrack reference */
nf_reset(skb);
@@ -1582,9 +1580,9 @@ static int packet_dev_mc(struct net_device *dev, struct packet_mclist *i,
break;
case PACKET_MR_UNICAST:
if (what > 0)
- return dev_unicast_add(dev, i->addr, i->alen);
+ return dev_unicast_add(dev, i->addr);
else
- return dev_unicast_delete(dev, i->addr, i->alen);
+ return dev_unicast_delete(dev, i->addr);
break;
default:;
}
diff --git a/net/phonet/pep-gprs.c b/net/phonet/pep-gprs.c
index 4aa888584d2..480839dfc56 100644
--- a/net/phonet/pep-gprs.c
+++ b/net/phonet/pep-gprs.c
@@ -115,10 +115,10 @@ static int gprs_recv(struct gprs_dev *gp, struct sk_buff *skb)
rskb->truesize += rskb->len;
/* Avoid nested fragments */
- for (fs = skb_shinfo(skb)->frag_list; fs; fs = fs->next)
+ skb_walk_frags(skb, fs)
flen += fs->len;
skb->next = skb_shinfo(skb)->frag_list;
- skb_shinfo(skb)->frag_list = NULL;
+ skb_frag_list_init(skb);
skb->len -= flen;
skb->data_len -= flen;
skb->truesize -= flen;
@@ -212,8 +212,9 @@ static int gprs_xmit(struct sk_buff *skb, struct net_device *dev)
dev->stats.tx_bytes += len;
}
- if (!pep_writeable(sk))
- netif_stop_queue(dev);
+ netif_stop_queue(dev);
+ if (pep_writeable(sk))
+ netif_wake_queue(dev);
return 0;
}
diff --git a/net/phonet/pep.c b/net/phonet/pep.c
index 8ad2b533388..eef833ea6d7 100644
--- a/net/phonet/pep.c
+++ b/net/phonet/pep.c
@@ -940,10 +940,10 @@ int pep_write(struct sock *sk, struct sk_buff *skb)
rskb->truesize += rskb->len;
/* Avoid nested fragments */
- for (fs = skb_shinfo(skb)->frag_list; fs; fs = fs->next)
+ skb_walk_frags(skb, fs)
flen += fs->len;
skb->next = skb_shinfo(skb)->frag_list;
- skb_shinfo(skb)->frag_list = NULL;
+ skb_frag_list_init(skb);
skb->len -= flen;
skb->data_len -= flen;
skb->truesize -= flen;
diff --git a/net/rfkill/Kconfig b/net/rfkill/Kconfig
index 7f807b30cfb..eaf76587645 100644
--- a/net/rfkill/Kconfig
+++ b/net/rfkill/Kconfig
@@ -10,22 +10,15 @@ menuconfig RFKILL
To compile this driver as a module, choose M here: the
module will be called rfkill.
-config RFKILL_INPUT
- tristate "Input layer to RF switch connector"
- depends on RFKILL && INPUT
- help
- Say Y here if you want kernel automatically toggle state
- of RF switches on and off when user presses appropriate
- button or a key on the keyboard. Without this module you
- need a some kind of userspace application to control
- state of the switches.
-
- To compile this driver as a module, choose M here: the
- module will be called rfkill-input.
-
# LED trigger support
config RFKILL_LEDS
bool
- depends on RFKILL && LEDS_TRIGGERS
+ depends on RFKILL
+ depends on LEDS_TRIGGERS = y || RFKILL = LEDS_TRIGGERS
default y
+config RFKILL_INPUT
+ bool "RF switch input support" if EMBEDDED
+ depends on RFKILL
+ depends on INPUT = y || RFKILL = INPUT
+ default y if !EMBEDDED
diff --git a/net/rfkill/Makefile b/net/rfkill/Makefile
index b38c430be05..66210535269 100644
--- a/net/rfkill/Makefile
+++ b/net/rfkill/Makefile
@@ -2,5 +2,6 @@
# Makefile for the RF switch subsystem.
#
-obj-$(CONFIG_RFKILL) += rfkill.o
-obj-$(CONFIG_RFKILL_INPUT) += rfkill-input.o
+rfkill-y += core.o
+rfkill-$(CONFIG_RFKILL_INPUT) += input.o
+obj-$(CONFIG_RFKILL) += rfkill.o
diff --git a/net/rfkill/core.c b/net/rfkill/core.c
new file mode 100644
index 00000000000..4e68ab439d5
--- /dev/null
+++ b/net/rfkill/core.c
@@ -0,0 +1,1205 @@
+/*
+ * Copyright (C) 2006 - 2007 Ivo van Doorn
+ * Copyright (C) 2007 Dmitry Torokhov
+ * Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the
+ * Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/workqueue.h>
+#include <linux/capability.h>
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/rfkill.h>
+#include <linux/spinlock.h>
+#include <linux/miscdevice.h>
+#include <linux/wait.h>
+#include <linux/poll.h>
+#include <linux/fs.h>
+
+#include "rfkill.h"
+
+#define POLL_INTERVAL (5 * HZ)
+
+#define RFKILL_BLOCK_HW BIT(0)
+#define RFKILL_BLOCK_SW BIT(1)
+#define RFKILL_BLOCK_SW_PREV BIT(2)
+#define RFKILL_BLOCK_ANY (RFKILL_BLOCK_HW |\
+ RFKILL_BLOCK_SW |\
+ RFKILL_BLOCK_SW_PREV)
+#define RFKILL_BLOCK_SW_SETCALL BIT(31)
+
+struct rfkill {
+ spinlock_t lock;
+
+ const char *name;
+ enum rfkill_type type;
+
+ unsigned long state;
+
+ u32 idx;
+
+ bool registered;
+ bool suspended;
+ bool persistent;
+
+ const struct rfkill_ops *ops;
+ void *data;
+
+#ifdef CONFIG_RFKILL_LEDS
+ struct led_trigger led_trigger;
+ const char *ledtrigname;
+#endif
+
+ struct device dev;
+ struct list_head node;
+
+ struct delayed_work poll_work;
+ struct work_struct uevent_work;
+ struct work_struct sync_work;
+};
+#define to_rfkill(d) container_of(d, struct rfkill, dev)
+
+struct rfkill_int_event {
+ struct list_head list;
+ struct rfkill_event ev;
+};
+
+struct rfkill_data {
+ struct list_head list;
+ struct list_head events;
+ struct mutex mtx;
+ wait_queue_head_t read_wait;
+ bool input_handler;
+};
+
+
+MODULE_AUTHOR("Ivo van Doorn <IvDoorn@gmail.com>");
+MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>");
+MODULE_DESCRIPTION("RF switch support");
+MODULE_LICENSE("GPL");
+
+
+/*
+ * The locking here should be made much smarter, we currently have
+ * a bit of a stupid situation because drivers might want to register
+ * the rfkill struct under their own lock, and take this lock during
+ * rfkill method calls -- which will cause an AB-BA deadlock situation.
+ *
+ * To fix that, we need to rework this code here to be mostly lock-free
+ * and only use the mutex for list manipulations, not to protect the
+ * various other global variables. Then we can avoid holding the mutex
+ * around driver operations, and all is happy.
+ */
+static LIST_HEAD(rfkill_list); /* list of registered rf switches */
+static DEFINE_MUTEX(rfkill_global_mutex);
+static LIST_HEAD(rfkill_fds); /* list of open fds of /dev/rfkill */
+
+static unsigned int rfkill_default_state = 1;
+module_param_named(default_state, rfkill_default_state, uint, 0444);
+MODULE_PARM_DESC(default_state,
+ "Default initial state for all radio types, 0 = radio off");
+
+static struct {
+ bool cur, sav;
+} rfkill_global_states[NUM_RFKILL_TYPES];
+
+static bool rfkill_epo_lock_active;
+
+
+#ifdef CONFIG_RFKILL_LEDS
+static void rfkill_led_trigger_event(struct rfkill *rfkill)
+{
+ struct led_trigger *trigger;
+
+ if (!rfkill->registered)
+ return;
+
+ trigger = &rfkill->led_trigger;
+
+ if (rfkill->state & RFKILL_BLOCK_ANY)
+ led_trigger_event(trigger, LED_OFF);
+ else
+ led_trigger_event(trigger, LED_FULL);
+}
+
+static void rfkill_led_trigger_activate(struct led_classdev *led)
+{
+ struct rfkill *rfkill;
+
+ rfkill = container_of(led->trigger, struct rfkill, led_trigger);
+
+ rfkill_led_trigger_event(rfkill);
+}
+
+const char *rfkill_get_led_trigger_name(struct rfkill *rfkill)
+{
+ return rfkill->led_trigger.name;
+}
+EXPORT_SYMBOL(rfkill_get_led_trigger_name);
+
+void rfkill_set_led_trigger_name(struct rfkill *rfkill, const char *name)
+{
+ BUG_ON(!rfkill);
+
+ rfkill->ledtrigname = name;
+}
+EXPORT_SYMBOL(rfkill_set_led_trigger_name);
+
+static int rfkill_led_trigger_register(struct rfkill *rfkill)
+{
+ rfkill->led_trigger.name = rfkill->ledtrigname
+ ? : dev_name(&rfkill->dev);
+ rfkill->led_trigger.activate = rfkill_led_trigger_activate;
+ return led_trigger_register(&rfkill->led_trigger);
+}
+
+static void rfkill_led_trigger_unregister(struct rfkill *rfkill)
+{
+ led_trigger_unregister(&rfkill->led_trigger);
+}
+#else
+static void rfkill_led_trigger_event(struct rfkill *rfkill)
+{
+}
+
+static inline int rfkill_led_trigger_register(struct rfkill *rfkill)
+{
+ return 0;
+}
+
+static inline void rfkill_led_trigger_unregister(struct rfkill *rfkill)
+{
+}
+#endif /* CONFIG_RFKILL_LEDS */
+
+static void rfkill_fill_event(struct rfkill_event *ev, struct rfkill *rfkill,
+ enum rfkill_operation op)
+{
+ unsigned long flags;
+
+ ev->idx = rfkill->idx;
+ ev->type = rfkill->type;
+ ev->op = op;
+
+ spin_lock_irqsave(&rfkill->lock, flags);
+ ev->hard = !!(rfkill->state & RFKILL_BLOCK_HW);
+ ev->soft = !!(rfkill->state & (RFKILL_BLOCK_SW |
+ RFKILL_BLOCK_SW_PREV));
+ spin_unlock_irqrestore(&rfkill->lock, flags);
+}
+
+static void rfkill_send_events(struct rfkill *rfkill, enum rfkill_operation op)
+{
+ struct rfkill_data *data;
+ struct rfkill_int_event *ev;
+
+ list_for_each_entry(data, &rfkill_fds, list) {
+ ev = kzalloc(sizeof(*ev), GFP_KERNEL);
+ if (!ev)
+ continue;
+ rfkill_fill_event(&ev->ev, rfkill, op);
+ mutex_lock(&data->mtx);
+ list_add_tail(&ev->list, &data->events);
+ mutex_unlock(&data->mtx);
+ wake_up_interruptible(&data->read_wait);
+ }
+}
+
+static void rfkill_event(struct rfkill *rfkill)
+{
+ if (!rfkill->registered || rfkill->suspended)
+ return;
+
+ kobject_uevent(&rfkill->dev.kobj, KOBJ_CHANGE);
+
+ /* also send event to /dev/rfkill */
+ rfkill_send_events(rfkill, RFKILL_OP_CHANGE);
+}
+
+static bool __rfkill_set_hw_state(struct rfkill *rfkill,
+ bool blocked, bool *change)
+{
+ unsigned long flags;
+ bool prev, any;
+
+ BUG_ON(!rfkill);
+
+ spin_lock_irqsave(&rfkill->lock, flags);
+ prev = !!(rfkill->state & RFKILL_BLOCK_HW);
+ if (blocked)
+ rfkill->state |= RFKILL_BLOCK_HW;
+ else
+ rfkill->state &= ~RFKILL_BLOCK_HW;
+ *change = prev != blocked;
+ any = rfkill->state & RFKILL_BLOCK_ANY;
+ spin_unlock_irqrestore(&rfkill->lock, flags);
+
+ rfkill_led_trigger_event(rfkill);
+
+ return any;
+}
+
+/**
+ * rfkill_set_block - wrapper for set_block method
+ *
+ * @rfkill: the rfkill struct to use
+ * @blocked: the new software state
+ *
+ * Calls the set_block method (when applicable) and handles notifications
+ * etc. as well.
+ */
+static void rfkill_set_block(struct rfkill *rfkill, bool blocked)
+{
+ unsigned long flags;
+ int err;
+
+ /*
+ * Some platforms (...!) generate input events which affect the
+ * _hard_ kill state -- whenever something tries to change the
+ * current software state query the hardware state too.
+ */
+ if (rfkill->ops->query)
+ rfkill->ops->query(rfkill, rfkill->data);
+
+ spin_lock_irqsave(&rfkill->lock, flags);
+ if (rfkill->state & RFKILL_BLOCK_SW)
+ rfkill->state |= RFKILL_BLOCK_SW_PREV;
+ else
+ rfkill->state &= ~RFKILL_BLOCK_SW_PREV;
+
+ if (blocked)
+ rfkill->state |= RFKILL_BLOCK_SW;
+ else
+ rfkill->state &= ~RFKILL_BLOCK_SW;
+
+ rfkill->state |= RFKILL_BLOCK_SW_SETCALL;
+ spin_unlock_irqrestore(&rfkill->lock, flags);
+
+ if (unlikely(rfkill->dev.power.power_state.event & PM_EVENT_SLEEP))
+ return;
+
+ err = rfkill->ops->set_block(rfkill->data, blocked);
+
+ spin_lock_irqsave(&rfkill->lock, flags);
+ if (err) {
+ /*
+ * Failed -- reset status to _prev, this may be different
+ * from what set set _PREV to earlier in this function
+ * if rfkill_set_sw_state was invoked.
+ */
+ if (rfkill->state & RFKILL_BLOCK_SW_PREV)
+ rfkill->state |= RFKILL_BLOCK_SW;
+ else
+ rfkill->state &= ~RFKILL_BLOCK_SW;
+ }
+ rfkill->state &= ~RFKILL_BLOCK_SW_SETCALL;
+ rfkill->state &= ~RFKILL_BLOCK_SW_PREV;
+ spin_unlock_irqrestore(&rfkill->lock, flags);
+
+ rfkill_led_trigger_event(rfkill);
+ rfkill_event(rfkill);
+}
+
+#ifdef CONFIG_RFKILL_INPUT
+static atomic_t rfkill_input_disabled = ATOMIC_INIT(0);
+
+/**
+ * __rfkill_switch_all - Toggle state of all switches of given type
+ * @type: type of interfaces to be affected
+ * @state: the new state
+ *
+ * This function sets the state of all switches of given type,
+ * unless a specific switch is claimed by userspace (in which case,
+ * that switch is left alone) or suspended.
+ *
+ * Caller must have acquired rfkill_global_mutex.
+ */
+static void __rfkill_switch_all(const enum rfkill_type type, bool blocked)
+{
+ struct rfkill *rfkill;
+
+ rfkill_global_states[type].cur = blocked;
+ list_for_each_entry(rfkill, &rfkill_list, node) {
+ if (rfkill->type != type)
+ continue;
+
+ rfkill_set_block(rfkill, blocked);
+ }
+}
+
+/**
+ * rfkill_switch_all - Toggle state of all switches of given type
+ * @type: type of interfaces to be affected
+ * @state: the new state
+ *
+ * Acquires rfkill_global_mutex and calls __rfkill_switch_all(@type, @state).
+ * Please refer to __rfkill_switch_all() for details.
+ *
+ * Does nothing if the EPO lock is active.
+ */
+void rfkill_switch_all(enum rfkill_type type, bool blocked)
+{
+ if (atomic_read(&rfkill_input_disabled))
+ return;
+
+ mutex_lock(&rfkill_global_mutex);
+
+ if (!rfkill_epo_lock_active)
+ __rfkill_switch_all(type, blocked);
+
+ mutex_unlock(&rfkill_global_mutex);
+}
+
+/**
+ * rfkill_epo - emergency power off all transmitters
+ *
+ * This kicks all non-suspended rfkill devices to RFKILL_STATE_SOFT_BLOCKED,
+ * ignoring everything in its path but rfkill_global_mutex and rfkill->mutex.
+ *
+ * The global state before the EPO is saved and can be restored later
+ * using rfkill_restore_states().
+ */
+void rfkill_epo(void)
+{
+ struct rfkill *rfkill;
+ int i;
+
+ if (atomic_read(&rfkill_input_disabled))
+ return;
+
+ mutex_lock(&rfkill_global_mutex);
+
+ rfkill_epo_lock_active = true;
+ list_for_each_entry(rfkill, &rfkill_list, node)
+ rfkill_set_block(rfkill, true);
+
+ for (i = 0; i < NUM_RFKILL_TYPES; i++) {
+ rfkill_global_states[i].sav = rfkill_global_states[i].cur;
+ rfkill_global_states[i].cur = true;
+ }
+
+ mutex_unlock(&rfkill_global_mutex);
+}
+
+/**
+ * rfkill_restore_states - restore global states
+ *
+ * Restore (and sync switches to) the global state from the
+ * states in rfkill_default_states. This can undo the effects of
+ * a call to rfkill_epo().
+ */
+void rfkill_restore_states(void)
+{
+ int i;
+
+ if (atomic_read(&rfkill_input_disabled))
+ return;
+
+ mutex_lock(&rfkill_global_mutex);
+
+ rfkill_epo_lock_active = false;
+ for (i = 0; i < NUM_RFKILL_TYPES; i++)
+ __rfkill_switch_all(i, rfkill_global_states[i].sav);
+ mutex_unlock(&rfkill_global_mutex);
+}
+
+/**
+ * rfkill_remove_epo_lock - unlock state changes
+ *
+ * Used by rfkill-input manually unlock state changes, when
+ * the EPO switch is deactivated.
+ */
+void rfkill_remove_epo_lock(void)
+{
+ if (atomic_read(&rfkill_input_disabled))
+ return;
+
+ mutex_lock(&rfkill_global_mutex);
+ rfkill_epo_lock_active = false;
+ mutex_unlock(&rfkill_global_mutex);
+}
+
+/**
+ * rfkill_is_epo_lock_active - returns true EPO is active
+ *
+ * Returns 0 (false) if there is NOT an active EPO contidion,
+ * and 1 (true) if there is an active EPO contition, which
+ * locks all radios in one of the BLOCKED states.
+ *
+ * Can be called in atomic context.
+ */
+bool rfkill_is_epo_lock_active(void)
+{
+ return rfkill_epo_lock_active;
+}
+
+/**
+ * rfkill_get_global_sw_state - returns global state for a type
+ * @type: the type to get the global state of
+ *
+ * Returns the current global state for a given wireless
+ * device type.
+ */
+bool rfkill_get_global_sw_state(const enum rfkill_type type)
+{
+ return rfkill_global_states[type].cur;
+}
+#endif
+
+
+bool rfkill_set_hw_state(struct rfkill *rfkill, bool blocked)
+{
+ bool ret, change;
+
+ ret = __rfkill_set_hw_state(rfkill, blocked, &change);
+
+ if (!rfkill->registered)
+ return ret;
+
+ if (change)
+ schedule_work(&rfkill->uevent_work);
+
+ return ret;
+}
+EXPORT_SYMBOL(rfkill_set_hw_state);
+
+static void __rfkill_set_sw_state(struct rfkill *rfkill, bool blocked)
+{
+ u32 bit = RFKILL_BLOCK_SW;
+
+ /* if in a ops->set_block right now, use other bit */
+ if (rfkill->state & RFKILL_BLOCK_SW_SETCALL)
+ bit = RFKILL_BLOCK_SW_PREV;
+
+ if (blocked)
+ rfkill->state |= bit;
+ else
+ rfkill->state &= ~bit;
+}
+
+bool rfkill_set_sw_state(struct rfkill *rfkill, bool blocked)
+{
+ unsigned long flags;
+ bool prev, hwblock;
+
+ BUG_ON(!rfkill);
+
+ spin_lock_irqsave(&rfkill->lock, flags);
+ prev = !!(rfkill->state & RFKILL_BLOCK_SW);
+ __rfkill_set_sw_state(rfkill, blocked);
+ hwblock = !!(rfkill->state & RFKILL_BLOCK_HW);
+ blocked = blocked || hwblock;
+ spin_unlock_irqrestore(&rfkill->lock, flags);
+
+ if (!rfkill->registered) {
+ rfkill->persistent = true;
+ } else {
+ if (prev != blocked && !hwblock)
+ schedule_work(&rfkill->uevent_work);
+
+ rfkill_led_trigger_event(rfkill);
+ }
+
+ return blocked;
+}
+EXPORT_SYMBOL(rfkill_set_sw_state);
+
+void rfkill_set_states(struct rfkill *rfkill, bool sw, bool hw)
+{
+ unsigned long flags;
+ bool swprev, hwprev;
+
+ BUG_ON(!rfkill);
+
+ spin_lock_irqsave(&rfkill->lock, flags);
+
+ /*
+ * No need to care about prev/setblock ... this is for uevent only
+ * and that will get triggered by rfkill_set_block anyway.
+ */
+ swprev = !!(rfkill->state & RFKILL_BLOCK_SW);
+ hwprev = !!(rfkill->state & RFKILL_BLOCK_HW);
+ __rfkill_set_sw_state(rfkill, sw);
+
+ spin_unlock_irqrestore(&rfkill->lock, flags);
+
+ if (!rfkill->registered) {
+ rfkill->persistent = true;
+ } else {
+ if (swprev != sw || hwprev != hw)
+ schedule_work(&rfkill->uevent_work);
+
+ rfkill_led_trigger_event(rfkill);
+ }
+}
+EXPORT_SYMBOL(rfkill_set_states);
+
+static ssize_t rfkill_name_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct rfkill *rfkill = to_rfkill(dev);
+
+ return sprintf(buf, "%s\n", rfkill->name);
+}
+
+static const char *rfkill_get_type_str(enum rfkill_type type)
+{
+ switch (type) {
+ case RFKILL_TYPE_WLAN:
+ return "wlan";
+ case RFKILL_TYPE_BLUETOOTH:
+ return "bluetooth";
+ case RFKILL_TYPE_UWB:
+ return "ultrawideband";
+ case RFKILL_TYPE_WIMAX:
+ return "wimax";
+ case RFKILL_TYPE_WWAN:
+ return "wwan";
+ default:
+ BUG();
+ }
+
+ BUILD_BUG_ON(NUM_RFKILL_TYPES != RFKILL_TYPE_WWAN + 1);
+}
+
+static ssize_t rfkill_type_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct rfkill *rfkill = to_rfkill(dev);
+
+ return sprintf(buf, "%s\n", rfkill_get_type_str(rfkill->type));
+}
+
+static ssize_t rfkill_idx_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct rfkill *rfkill = to_rfkill(dev);
+
+ return sprintf(buf, "%d\n", rfkill->idx);
+}
+
+static u8 user_state_from_blocked(unsigned long state)
+{
+ if (state & RFKILL_BLOCK_HW)
+ return RFKILL_USER_STATE_HARD_BLOCKED;
+ if (state & RFKILL_BLOCK_SW)
+ return RFKILL_USER_STATE_SOFT_BLOCKED;
+
+ return RFKILL_USER_STATE_UNBLOCKED;
+}
+
+static ssize_t rfkill_state_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct rfkill *rfkill = to_rfkill(dev);
+ unsigned long flags;
+ u32 state;
+
+ spin_lock_irqsave(&rfkill->lock, flags);
+ state = rfkill->state;
+ spin_unlock_irqrestore(&rfkill->lock, flags);
+
+ return sprintf(buf, "%d\n", user_state_from_blocked(state));
+}
+
+static ssize_t rfkill_state_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ /*
+ * The intention was that userspace can only take control over
+ * a given device when/if rfkill-input doesn't control it due
+ * to user_claim. Since user_claim is currently unsupported,
+ * we never support changing the state from userspace -- this
+ * can be implemented again later.
+ */
+
+ return -EPERM;
+}
+
+static ssize_t rfkill_claim_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "%d\n", 0);
+}
+
+static ssize_t rfkill_claim_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ return -EOPNOTSUPP;
+}
+
+static struct device_attribute rfkill_dev_attrs[] = {
+ __ATTR(name, S_IRUGO, rfkill_name_show, NULL),
+ __ATTR(type, S_IRUGO, rfkill_type_show, NULL),
+ __ATTR(index, S_IRUGO, rfkill_idx_show, NULL),
+ __ATTR(state, S_IRUGO|S_IWUSR, rfkill_state_show, rfkill_state_store),
+ __ATTR(claim, S_IRUGO|S_IWUSR, rfkill_claim_show, rfkill_claim_store),
+ __ATTR_NULL
+};
+
+static void rfkill_release(struct device *dev)
+{
+ struct rfkill *rfkill = to_rfkill(dev);
+
+ kfree(rfkill);
+}
+
+static int rfkill_dev_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+ struct rfkill *rfkill = to_rfkill(dev);
+ unsigned long flags;
+ u32 state;
+ int error;
+
+ error = add_uevent_var(env, "RFKILL_NAME=%s", rfkill->name);
+ if (error)
+ return error;
+ error = add_uevent_var(env, "RFKILL_TYPE=%s",
+ rfkill_get_type_str(rfkill->type));
+ if (error)
+ return error;
+ spin_lock_irqsave(&rfkill->lock, flags);
+ state = rfkill->state;
+ spin_unlock_irqrestore(&rfkill->lock, flags);
+ error = add_uevent_var(env, "RFKILL_STATE=%d",
+ user_state_from_blocked(state));
+ return error;
+}
+
+void rfkill_pause_polling(struct rfkill *rfkill)
+{
+ BUG_ON(!rfkill);
+
+ if (!rfkill->ops->poll)
+ return;
+
+ cancel_delayed_work_sync(&rfkill->poll_work);
+}
+EXPORT_SYMBOL(rfkill_pause_polling);
+
+void rfkill_resume_polling(struct rfkill *rfkill)
+{
+ BUG_ON(!rfkill);
+
+ if (!rfkill->ops->poll)
+ return;
+
+ schedule_work(&rfkill->poll_work.work);
+}
+EXPORT_SYMBOL(rfkill_resume_polling);
+
+static int rfkill_suspend(struct device *dev, pm_message_t state)
+{
+ struct rfkill *rfkill = to_rfkill(dev);
+
+ rfkill_pause_polling(rfkill);
+
+ rfkill->suspended = true;
+
+ return 0;
+}
+
+static int rfkill_resume(struct device *dev)
+{
+ struct rfkill *rfkill = to_rfkill(dev);
+ bool cur;
+
+ cur = !!(rfkill->state & RFKILL_BLOCK_SW);
+ rfkill_set_block(rfkill, cur);
+
+ rfkill->suspended = false;
+
+ rfkill_resume_polling(rfkill);
+
+ return 0;
+}
+
+static struct class rfkill_class = {
+ .name = "rfkill",
+ .dev_release = rfkill_release,
+ .dev_attrs = rfkill_dev_attrs,
+ .dev_uevent = rfkill_dev_uevent,
+ .suspend = rfkill_suspend,
+ .resume = rfkill_resume,
+};
+
+bool rfkill_blocked(struct rfkill *rfkill)
+{
+ unsigned long flags;
+ u32 state;
+
+ spin_lock_irqsave(&rfkill->lock, flags);
+ state = rfkill->state;
+ spin_unlock_irqrestore(&rfkill->lock, flags);
+
+ return !!(state & RFKILL_BLOCK_ANY);
+}
+EXPORT_SYMBOL(rfkill_blocked);
+
+
+struct rfkill * __must_check rfkill_alloc(const char *name,
+ struct device *parent,
+ const enum rfkill_type type,
+ const struct rfkill_ops *ops,
+ void *ops_data)
+{
+ struct rfkill *rfkill;
+ struct device *dev;
+
+ if (WARN_ON(!ops))
+ return NULL;
+
+ if (WARN_ON(!ops->set_block))
+ return NULL;
+
+ if (WARN_ON(!name))
+ return NULL;
+
+ if (WARN_ON(type == RFKILL_TYPE_ALL || type >= NUM_RFKILL_TYPES))
+ return NULL;
+
+ rfkill = kzalloc(sizeof(*rfkill), GFP_KERNEL);
+ if (!rfkill)
+ return NULL;
+
+ spin_lock_init(&rfkill->lock);
+ INIT_LIST_HEAD(&rfkill->node);
+ rfkill->type = type;
+ rfkill->name = name;
+ rfkill->ops = ops;
+ rfkill->data = ops_data;
+
+ dev = &rfkill->dev;
+ dev->class = &rfkill_class;
+ dev->parent = parent;
+ device_initialize(dev);
+
+ return rfkill;
+}
+EXPORT_SYMBOL(rfkill_alloc);
+
+static void rfkill_poll(struct work_struct *work)
+{
+ struct rfkill *rfkill;
+
+ rfkill = container_of(work, struct rfkill, poll_work.work);
+
+ /*
+ * Poll hardware state -- driver will use one of the
+ * rfkill_set{,_hw,_sw}_state functions and use its
+ * return value to update the current status.
+ */
+ rfkill->ops->poll(rfkill, rfkill->data);
+
+ schedule_delayed_work(&rfkill->poll_work,
+ round_jiffies_relative(POLL_INTERVAL));
+}
+
+static void rfkill_uevent_work(struct work_struct *work)
+{
+ struct rfkill *rfkill;
+
+ rfkill = container_of(work, struct rfkill, uevent_work);
+
+ mutex_lock(&rfkill_global_mutex);
+ rfkill_event(rfkill);
+ mutex_unlock(&rfkill_global_mutex);
+}
+
+static void rfkill_sync_work(struct work_struct *work)
+{
+ struct rfkill *rfkill;
+ bool cur;
+
+ rfkill = container_of(work, struct rfkill, sync_work);
+
+ mutex_lock(&rfkill_global_mutex);
+ cur = rfkill_global_states[rfkill->type].cur;
+ rfkill_set_block(rfkill, cur);
+ mutex_unlock(&rfkill_global_mutex);
+}
+
+int __must_check rfkill_register(struct rfkill *rfkill)
+{
+ static unsigned long rfkill_no;
+ struct device *dev = &rfkill->dev;
+ int error;
+
+ BUG_ON(!rfkill);
+
+ mutex_lock(&rfkill_global_mutex);
+
+ if (rfkill->registered) {
+ error = -EALREADY;
+ goto unlock;
+ }
+
+ rfkill->idx = rfkill_no;
+ dev_set_name(dev, "rfkill%lu", rfkill_no);
+ rfkill_no++;
+
+ list_add_tail(&rfkill->node, &rfkill_list);
+
+ error = device_add(dev);
+ if (error)
+ goto remove;
+
+ error = rfkill_led_trigger_register(rfkill);
+ if (error)
+ goto devdel;
+
+ rfkill->registered = true;
+
+ INIT_DELAYED_WORK(&rfkill->poll_work, rfkill_poll);
+ INIT_WORK(&rfkill->uevent_work, rfkill_uevent_work);
+ INIT_WORK(&rfkill->sync_work, rfkill_sync_work);
+
+ if (rfkill->ops->poll)
+ schedule_delayed_work(&rfkill->poll_work,
+ round_jiffies_relative(POLL_INTERVAL));
+
+ if (!rfkill->persistent || rfkill_epo_lock_active) {
+ schedule_work(&rfkill->sync_work);
+ } else {
+#ifdef CONFIG_RFKILL_INPUT
+ bool soft_blocked = !!(rfkill->state & RFKILL_BLOCK_SW);
+
+ if (!atomic_read(&rfkill_input_disabled))
+ __rfkill_switch_all(rfkill->type, soft_blocked);
+#endif
+ }
+
+ rfkill_send_events(rfkill, RFKILL_OP_ADD);
+
+ mutex_unlock(&rfkill_global_mutex);
+ return 0;
+
+ devdel:
+ device_del(&rfkill->dev);
+ remove:
+ list_del_init(&rfkill->node);
+ unlock:
+ mutex_unlock(&rfkill_global_mutex);
+ return error;
+}
+EXPORT_SYMBOL(rfkill_register);
+
+void rfkill_unregister(struct rfkill *rfkill)
+{
+ BUG_ON(!rfkill);
+
+ if (rfkill->ops->poll)
+ cancel_delayed_work_sync(&rfkill->poll_work);
+
+ cancel_work_sync(&rfkill->uevent_work);
+ cancel_work_sync(&rfkill->sync_work);
+
+ rfkill->registered = false;
+
+ device_del(&rfkill->dev);
+
+ mutex_lock(&rfkill_global_mutex);
+ rfkill_send_events(rfkill, RFKILL_OP_DEL);
+ list_del_init(&rfkill->node);
+ mutex_unlock(&rfkill_global_mutex);
+
+ rfkill_led_trigger_unregister(rfkill);
+}
+EXPORT_SYMBOL(rfkill_unregister);
+
+void rfkill_destroy(struct rfkill *rfkill)
+{
+ if (rfkill)
+ put_device(&rfkill->dev);
+}
+EXPORT_SYMBOL(rfkill_destroy);
+
+static int rfkill_fop_open(struct inode *inode, struct file *file)
+{
+ struct rfkill_data *data;
+ struct rfkill *rfkill;
+ struct rfkill_int_event *ev, *tmp;
+
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ INIT_LIST_HEAD(&data->events);
+ mutex_init(&data->mtx);
+ init_waitqueue_head(&data->read_wait);
+
+ mutex_lock(&rfkill_global_mutex);
+ mutex_lock(&data->mtx);
+ /*
+ * start getting events from elsewhere but hold mtx to get
+ * startup events added first
+ */
+ list_add(&data->list, &rfkill_fds);
+
+ list_for_each_entry(rfkill, &rfkill_list, node) {
+ ev = kzalloc(sizeof(*ev), GFP_KERNEL);
+ if (!ev)
+ goto free;
+ rfkill_fill_event(&ev->ev, rfkill, RFKILL_OP_ADD);
+ list_add_tail(&ev->list, &data->events);
+ }
+ mutex_unlock(&data->mtx);
+ mutex_unlock(&rfkill_global_mutex);
+
+ file->private_data = data;
+
+ return nonseekable_open(inode, file);
+
+ free:
+ mutex_unlock(&data->mtx);
+ mutex_unlock(&rfkill_global_mutex);
+ mutex_destroy(&data->mtx);
+ list_for_each_entry_safe(ev, tmp, &data->events, list)
+ kfree(ev);
+ kfree(data);
+ return -ENOMEM;
+}
+
+static unsigned int rfkill_fop_poll(struct file *file, poll_table *wait)
+{
+ struct rfkill_data *data = file->private_data;
+ unsigned int res = POLLOUT | POLLWRNORM;
+
+ poll_wait(file, &data->read_wait, wait);
+
+ mutex_lock(&data->mtx);
+ if (!list_empty(&data->events))
+ res = POLLIN | POLLRDNORM;
+ mutex_unlock(&data->mtx);
+
+ return res;
+}
+
+static bool rfkill_readable(struct rfkill_data *data)
+{
+ bool r;
+
+ mutex_lock(&data->mtx);
+ r = !list_empty(&data->events);
+ mutex_unlock(&data->mtx);
+
+ return r;
+}
+
+static ssize_t rfkill_fop_read(struct file *file, char __user *buf,
+ size_t count, loff_t *pos)
+{
+ struct rfkill_data *data = file->private_data;
+ struct rfkill_int_event *ev;
+ unsigned long sz;
+ int ret;
+
+ mutex_lock(&data->mtx);
+
+ while (list_empty(&data->events)) {
+ if (file->f_flags & O_NONBLOCK) {
+ ret = -EAGAIN;
+ goto out;
+ }
+ mutex_unlock(&data->mtx);
+ ret = wait_event_interruptible(data->read_wait,
+ rfkill_readable(data));
+ mutex_lock(&data->mtx);
+
+ if (ret)
+ goto out;
+ }
+
+ ev = list_first_entry(&data->events, struct rfkill_int_event,
+ list);
+
+ sz = min_t(unsigned long, sizeof(ev->ev), count);
+ ret = sz;
+ if (copy_to_user(buf, &ev->ev, sz))
+ ret = -EFAULT;
+
+ list_del(&ev->list);
+ kfree(ev);
+ out:
+ mutex_unlock(&data->mtx);
+ return ret;
+}
+
+static ssize_t rfkill_fop_write(struct file *file, const char __user *buf,
+ size_t count, loff_t *pos)
+{
+ struct rfkill *rfkill;
+ struct rfkill_event ev;
+
+ /* we don't need the 'hard' variable but accept it */
+ if (count < sizeof(ev) - 1)
+ return -EINVAL;
+
+ if (copy_from_user(&ev, buf, sizeof(ev) - 1))
+ return -EFAULT;
+
+ if (ev.op != RFKILL_OP_CHANGE && ev.op != RFKILL_OP_CHANGE_ALL)
+ return -EINVAL;
+
+ if (ev.type >= NUM_RFKILL_TYPES)
+ return -EINVAL;
+
+ mutex_lock(&rfkill_global_mutex);
+
+ if (ev.op == RFKILL_OP_CHANGE_ALL) {
+ if (ev.type == RFKILL_TYPE_ALL) {
+ enum rfkill_type i;
+ for (i = 0; i < NUM_RFKILL_TYPES; i++)
+ rfkill_global_states[i].cur = ev.soft;
+ } else {
+ rfkill_global_states[ev.type].cur = ev.soft;
+ }
+ }
+
+ list_for_each_entry(rfkill, &rfkill_list, node) {
+ if (rfkill->idx != ev.idx && ev.op != RFKILL_OP_CHANGE_ALL)
+ continue;
+
+ if (rfkill->type != ev.type && ev.type != RFKILL_TYPE_ALL)
+ continue;
+
+ rfkill_set_block(rfkill, ev.soft);
+ }
+ mutex_unlock(&rfkill_global_mutex);
+
+ return count;
+}
+
+static int rfkill_fop_release(struct inode *inode, struct file *file)
+{
+ struct rfkill_data *data = file->private_data;
+ struct rfkill_int_event *ev, *tmp;
+
+ mutex_lock(&rfkill_global_mutex);
+ list_del(&data->list);
+ mutex_unlock(&rfkill_global_mutex);
+
+ mutex_destroy(&data->mtx);
+ list_for_each_entry_safe(ev, tmp, &data->events, list)
+ kfree(ev);
+
+#ifdef CONFIG_RFKILL_INPUT
+ if (data->input_handler)
+ if (atomic_dec_return(&rfkill_input_disabled) == 0)
+ printk(KERN_DEBUG "rfkill: input handler enabled\n");
+#endif
+
+ kfree(data);
+
+ return 0;
+}
+
+#ifdef CONFIG_RFKILL_INPUT
+static long rfkill_fop_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ struct rfkill_data *data = file->private_data;
+
+ if (_IOC_TYPE(cmd) != RFKILL_IOC_MAGIC)
+ return -ENOSYS;
+
+ if (_IOC_NR(cmd) != RFKILL_IOC_NOINPUT)
+ return -ENOSYS;
+
+ mutex_lock(&data->mtx);
+
+ if (!data->input_handler) {
+ if (atomic_inc_return(&rfkill_input_disabled) == 1)
+ printk(KERN_DEBUG "rfkill: input handler disabled\n");
+ data->input_handler = true;
+ }
+
+ mutex_unlock(&data->mtx);
+
+ return 0;
+}
+#endif
+
+static const struct file_operations rfkill_fops = {
+ .open = rfkill_fop_open,
+ .read = rfkill_fop_read,
+ .write = rfkill_fop_write,
+ .poll = rfkill_fop_poll,
+ .release = rfkill_fop_release,
+#ifdef CONFIG_RFKILL_INPUT
+ .unlocked_ioctl = rfkill_fop_ioctl,
+ .compat_ioctl = rfkill_fop_ioctl,
+#endif
+};
+
+static struct miscdevice rfkill_miscdev = {
+ .name = "rfkill",
+ .fops = &rfkill_fops,
+ .minor = MISC_DYNAMIC_MINOR,
+};
+
+static int __init rfkill_init(void)
+{
+ int error;
+ int i;
+
+ for (i = 0; i < NUM_RFKILL_TYPES; i++)
+ rfkill_global_states[i].cur = !rfkill_default_state;
+
+ error = class_register(&rfkill_class);
+ if (error)
+ goto out;
+
+ error = misc_register(&rfkill_miscdev);
+ if (error) {
+ class_unregister(&rfkill_class);
+ goto out;
+ }
+
+#ifdef CONFIG_RFKILL_INPUT
+ error = rfkill_handler_init();
+ if (error) {
+ misc_deregister(&rfkill_miscdev);
+ class_unregister(&rfkill_class);
+ goto out;
+ }
+#endif
+
+ out:
+ return error;
+}
+subsys_initcall(rfkill_init);
+
+static void __exit rfkill_exit(void)
+{
+#ifdef CONFIG_RFKILL_INPUT
+ rfkill_handler_exit();
+#endif
+ misc_deregister(&rfkill_miscdev);
+ class_unregister(&rfkill_class);
+}
+module_exit(rfkill_exit);
diff --git a/net/rfkill/input.c b/net/rfkill/input.c
new file mode 100644
index 00000000000..a7295ad5f9c
--- /dev/null
+++ b/net/rfkill/input.c
@@ -0,0 +1,342 @@
+/*
+ * Input layer to RF Kill interface connector
+ *
+ * Copyright (c) 2007 Dmitry Torokhov
+ * Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * If you ever run into a situation in which you have a SW_ type rfkill
+ * input device, then you can revive code that was removed in the patch
+ * "rfkill-input: remove unused code".
+ */
+
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <linux/init.h>
+#include <linux/rfkill.h>
+#include <linux/sched.h>
+
+#include "rfkill.h"
+
+enum rfkill_input_master_mode {
+ RFKILL_INPUT_MASTER_UNLOCK = 0,
+ RFKILL_INPUT_MASTER_RESTORE = 1,
+ RFKILL_INPUT_MASTER_UNBLOCKALL = 2,
+ NUM_RFKILL_INPUT_MASTER_MODES
+};
+
+/* Delay (in ms) between consecutive switch ops */
+#define RFKILL_OPS_DELAY 200
+
+static enum rfkill_input_master_mode rfkill_master_switch_mode =
+ RFKILL_INPUT_MASTER_UNBLOCKALL;
+module_param_named(master_switch_mode, rfkill_master_switch_mode, uint, 0);
+MODULE_PARM_DESC(master_switch_mode,
+ "SW_RFKILL_ALL ON should: 0=do nothing (only unlock); 1=restore; 2=unblock all");
+
+static spinlock_t rfkill_op_lock;
+static bool rfkill_op_pending;
+static unsigned long rfkill_sw_pending[BITS_TO_LONGS(NUM_RFKILL_TYPES)];
+static unsigned long rfkill_sw_state[BITS_TO_LONGS(NUM_RFKILL_TYPES)];
+
+enum rfkill_sched_op {
+ RFKILL_GLOBAL_OP_EPO = 0,
+ RFKILL_GLOBAL_OP_RESTORE,
+ RFKILL_GLOBAL_OP_UNLOCK,
+ RFKILL_GLOBAL_OP_UNBLOCK,
+};
+
+static enum rfkill_sched_op rfkill_master_switch_op;
+static enum rfkill_sched_op rfkill_op;
+
+static void __rfkill_handle_global_op(enum rfkill_sched_op op)
+{
+ unsigned int i;
+
+ switch (op) {
+ case RFKILL_GLOBAL_OP_EPO:
+ rfkill_epo();
+ break;
+ case RFKILL_GLOBAL_OP_RESTORE:
+ rfkill_restore_states();
+ break;
+ case RFKILL_GLOBAL_OP_UNLOCK:
+ rfkill_remove_epo_lock();
+ break;
+ case RFKILL_GLOBAL_OP_UNBLOCK:
+ rfkill_remove_epo_lock();
+ for (i = 0; i < NUM_RFKILL_TYPES; i++)
+ rfkill_switch_all(i, false);
+ break;
+ default:
+ /* memory corruption or bug, fail safely */
+ rfkill_epo();
+ WARN(1, "Unknown requested operation %d! "
+ "rfkill Emergency Power Off activated\n",
+ op);
+ }
+}
+
+static void __rfkill_handle_normal_op(const enum rfkill_type type,
+ const bool complement)
+{
+ bool blocked;
+
+ blocked = rfkill_get_global_sw_state(type);
+ if (complement)
+ blocked = !blocked;
+
+ rfkill_switch_all(type, blocked);
+}
+
+static void rfkill_op_handler(struct work_struct *work)
+{
+ unsigned int i;
+ bool c;
+
+ spin_lock_irq(&rfkill_op_lock);
+ do {
+ if (rfkill_op_pending) {
+ enum rfkill_sched_op op = rfkill_op;
+ rfkill_op_pending = false;
+ memset(rfkill_sw_pending, 0,
+ sizeof(rfkill_sw_pending));
+ spin_unlock_irq(&rfkill_op_lock);
+
+ __rfkill_handle_global_op(op);
+
+ spin_lock_irq(&rfkill_op_lock);
+
+ /*
+ * handle global ops first -- during unlocked period
+ * we might have gotten a new global op.
+ */
+ if (rfkill_op_pending)
+ continue;
+ }
+
+ if (rfkill_is_epo_lock_active())
+ continue;
+
+ for (i = 0; i < NUM_RFKILL_TYPES; i++) {
+ if (__test_and_clear_bit(i, rfkill_sw_pending)) {
+ c = __test_and_clear_bit(i, rfkill_sw_state);
+ spin_unlock_irq(&rfkill_op_lock);
+
+ __rfkill_handle_normal_op(i, c);
+
+ spin_lock_irq(&rfkill_op_lock);
+ }
+ }
+ } while (rfkill_op_pending);
+ spin_unlock_irq(&rfkill_op_lock);
+}
+
+static DECLARE_DELAYED_WORK(rfkill_op_work, rfkill_op_handler);
+static unsigned long rfkill_last_scheduled;
+
+static unsigned long rfkill_ratelimit(const unsigned long last)
+{
+ const unsigned long delay = msecs_to_jiffies(RFKILL_OPS_DELAY);
+ return (time_after(jiffies, last + delay)) ? 0 : delay;
+}
+
+static void rfkill_schedule_ratelimited(void)
+{
+ if (delayed_work_pending(&rfkill_op_work))
+ return;
+ schedule_delayed_work(&rfkill_op_work,
+ rfkill_ratelimit(rfkill_last_scheduled));
+ rfkill_last_scheduled = jiffies;
+}
+
+static void rfkill_schedule_global_op(enum rfkill_sched_op op)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&rfkill_op_lock, flags);
+ rfkill_op = op;
+ rfkill_op_pending = true;
+ if (op == RFKILL_GLOBAL_OP_EPO && !rfkill_is_epo_lock_active()) {
+ /* bypass the limiter for EPO */
+ cancel_delayed_work(&rfkill_op_work);
+ schedule_delayed_work(&rfkill_op_work, 0);
+ rfkill_last_scheduled = jiffies;
+ } else
+ rfkill_schedule_ratelimited();
+ spin_unlock_irqrestore(&rfkill_op_lock, flags);
+}
+
+static void rfkill_schedule_toggle(enum rfkill_type type)
+{
+ unsigned long flags;
+
+ if (rfkill_is_epo_lock_active())
+ return;
+
+ spin_lock_irqsave(&rfkill_op_lock, flags);
+ if (!rfkill_op_pending) {
+ __set_bit(type, rfkill_sw_pending);
+ __change_bit(type, rfkill_sw_state);
+ rfkill_schedule_ratelimited();
+ }
+ spin_unlock_irqrestore(&rfkill_op_lock, flags);
+}
+
+static void rfkill_schedule_evsw_rfkillall(int state)
+{
+ if (state)
+ rfkill_schedule_global_op(rfkill_master_switch_op);
+ else
+ rfkill_schedule_global_op(RFKILL_GLOBAL_OP_EPO);
+}
+
+static void rfkill_event(struct input_handle *handle, unsigned int type,
+ unsigned int code, int data)
+{
+ if (type == EV_KEY && data == 1) {
+ switch (code) {
+ case KEY_WLAN:
+ rfkill_schedule_toggle(RFKILL_TYPE_WLAN);
+ break;
+ case KEY_BLUETOOTH:
+ rfkill_schedule_toggle(RFKILL_TYPE_BLUETOOTH);
+ break;
+ case KEY_UWB:
+ rfkill_schedule_toggle(RFKILL_TYPE_UWB);
+ break;
+ case KEY_WIMAX:
+ rfkill_schedule_toggle(RFKILL_TYPE_WIMAX);
+ break;
+ }
+ } else if (type == EV_SW && code == SW_RFKILL_ALL)
+ rfkill_schedule_evsw_rfkillall(data);
+}
+
+static int rfkill_connect(struct input_handler *handler, struct input_dev *dev,
+ const struct input_device_id *id)
+{
+ struct input_handle *handle;
+ int error;
+
+ handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
+ if (!handle)
+ return -ENOMEM;
+
+ handle->dev = dev;
+ handle->handler = handler;
+ handle->name = "rfkill";
+
+ /* causes rfkill_start() to be called */
+ error = input_register_handle(handle);
+ if (error)
+ goto err_free_handle;
+
+ error = input_open_device(handle);
+ if (error)
+ goto err_unregister_handle;
+
+ return 0;
+
+ err_unregister_handle:
+ input_unregister_handle(handle);
+ err_free_handle:
+ kfree(handle);
+ return error;
+}
+
+static void rfkill_start(struct input_handle *handle)
+{
+ /*
+ * Take event_lock to guard against configuration changes, we
+ * should be able to deal with concurrency with rfkill_event()
+ * just fine (which event_lock will also avoid).
+ */
+ spin_lock_irq(&handle->dev->event_lock);
+
+ if (test_bit(EV_SW, handle->dev->evbit) &&
+ test_bit(SW_RFKILL_ALL, handle->dev->swbit))
+ rfkill_schedule_evsw_rfkillall(test_bit(SW_RFKILL_ALL,
+ handle->dev->sw));
+
+ spin_unlock_irq(&handle->dev->event_lock);
+}
+
+static void rfkill_disconnect(struct input_handle *handle)
+{
+ input_close_device(handle);
+ input_unregister_handle(handle);
+ kfree(handle);
+}
+
+static const struct input_device_id rfkill_ids[] = {
+ {
+ .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
+ .evbit = { BIT_MASK(EV_KEY) },
+ .keybit = { [BIT_WORD(KEY_WLAN)] = BIT_MASK(KEY_WLAN) },
+ },
+ {
+ .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
+ .evbit = { BIT_MASK(EV_KEY) },
+ .keybit = { [BIT_WORD(KEY_BLUETOOTH)] = BIT_MASK(KEY_BLUETOOTH) },
+ },
+ {
+ .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
+ .evbit = { BIT_MASK(EV_KEY) },
+ .keybit = { [BIT_WORD(KEY_UWB)] = BIT_MASK(KEY_UWB) },
+ },
+ {
+ .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
+ .evbit = { BIT_MASK(EV_KEY) },
+ .keybit = { [BIT_WORD(KEY_WIMAX)] = BIT_MASK(KEY_WIMAX) },
+ },
+ {
+ .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_SWBIT,
+ .evbit = { BIT(EV_SW) },
+ .swbit = { [BIT_WORD(SW_RFKILL_ALL)] = BIT_MASK(SW_RFKILL_ALL) },
+ },
+ { }
+};
+
+static struct input_handler rfkill_handler = {
+ .name = "rfkill",
+ .event = rfkill_event,
+ .connect = rfkill_connect,
+ .start = rfkill_start,
+ .disconnect = rfkill_disconnect,
+ .id_table = rfkill_ids,
+};
+
+int __init rfkill_handler_init(void)
+{
+ switch (rfkill_master_switch_mode) {
+ case RFKILL_INPUT_MASTER_UNBLOCKALL:
+ rfkill_master_switch_op = RFKILL_GLOBAL_OP_UNBLOCK;
+ break;
+ case RFKILL_INPUT_MASTER_RESTORE:
+ rfkill_master_switch_op = RFKILL_GLOBAL_OP_RESTORE;
+ break;
+ case RFKILL_INPUT_MASTER_UNLOCK:
+ rfkill_master_switch_op = RFKILL_GLOBAL_OP_UNLOCK;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ spin_lock_init(&rfkill_op_lock);
+
+ /* Avoid delay at first schedule */
+ rfkill_last_scheduled =
+ jiffies - msecs_to_jiffies(RFKILL_OPS_DELAY) - 1;
+ return input_register_handler(&rfkill_handler);
+}
+
+void __exit rfkill_handler_exit(void)
+{
+ input_unregister_handler(&rfkill_handler);
+ cancel_delayed_work_sync(&rfkill_op_work);
+}
diff --git a/net/rfkill/rfkill-input.c b/net/rfkill/rfkill-input.c
deleted file mode 100644
index 60a34f3b5f6..00000000000
--- a/net/rfkill/rfkill-input.c
+++ /dev/null
@@ -1,390 +0,0 @@
-/*
- * Input layer to RF Kill interface connector
- *
- * Copyright (c) 2007 Dmitry Torokhov
- */
-
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/input.h>
-#include <linux/slab.h>
-#include <linux/workqueue.h>
-#include <linux/init.h>
-#include <linux/rfkill.h>
-#include <linux/sched.h>
-
-#include "rfkill-input.h"
-
-MODULE_AUTHOR("Dmitry Torokhov <dtor@mail.ru>");
-MODULE_DESCRIPTION("Input layer to RF switch connector");
-MODULE_LICENSE("GPL");
-
-enum rfkill_input_master_mode {
- RFKILL_INPUT_MASTER_DONOTHING = 0,
- RFKILL_INPUT_MASTER_RESTORE = 1,
- RFKILL_INPUT_MASTER_UNBLOCKALL = 2,
- RFKILL_INPUT_MASTER_MAX, /* marker */
-};
-
-/* Delay (in ms) between consecutive switch ops */
-#define RFKILL_OPS_DELAY 200
-
-static enum rfkill_input_master_mode rfkill_master_switch_mode =
- RFKILL_INPUT_MASTER_UNBLOCKALL;
-module_param_named(master_switch_mode, rfkill_master_switch_mode, uint, 0);
-MODULE_PARM_DESC(master_switch_mode,
- "SW_RFKILL_ALL ON should: 0=do nothing; 1=restore; 2=unblock all");
-
-enum rfkill_global_sched_op {
- RFKILL_GLOBAL_OP_EPO = 0,
- RFKILL_GLOBAL_OP_RESTORE,
- RFKILL_GLOBAL_OP_UNLOCK,
- RFKILL_GLOBAL_OP_UNBLOCK,
-};
-
-struct rfkill_task {
- struct delayed_work dwork;
-
- /* ensures that task is serialized */
- struct mutex mutex;
-
- /* protects everything below */
- spinlock_t lock;
-
- /* pending regular switch operations (1=pending) */
- unsigned long sw_pending[BITS_TO_LONGS(RFKILL_TYPE_MAX)];
-
- /* should the state be complemented (1=yes) */
- unsigned long sw_togglestate[BITS_TO_LONGS(RFKILL_TYPE_MAX)];
-
- bool global_op_pending;
- enum rfkill_global_sched_op op;
-
- /* last time it was scheduled */
- unsigned long last_scheduled;
-};
-
-static void __rfkill_handle_global_op(enum rfkill_global_sched_op op)
-{
- unsigned int i;
-
- switch (op) {
- case RFKILL_GLOBAL_OP_EPO:
- rfkill_epo();
- break;
- case RFKILL_GLOBAL_OP_RESTORE:
- rfkill_restore_states();
- break;
- case RFKILL_GLOBAL_OP_UNLOCK:
- rfkill_remove_epo_lock();
- break;
- case RFKILL_GLOBAL_OP_UNBLOCK:
- rfkill_remove_epo_lock();
- for (i = 0; i < RFKILL_TYPE_MAX; i++)
- rfkill_switch_all(i, RFKILL_STATE_UNBLOCKED);
- break;
- default:
- /* memory corruption or bug, fail safely */
- rfkill_epo();
- WARN(1, "Unknown requested operation %d! "
- "rfkill Emergency Power Off activated\n",
- op);
- }
-}
-
-static void __rfkill_handle_normal_op(const enum rfkill_type type,
- const bool c)
-{
- enum rfkill_state state;
-
- state = rfkill_get_global_state(type);
- if (c)
- state = rfkill_state_complement(state);
-
- rfkill_switch_all(type, state);
-}
-
-static void rfkill_task_handler(struct work_struct *work)
-{
- struct rfkill_task *task = container_of(work,
- struct rfkill_task, dwork.work);
- bool doit = true;
-
- mutex_lock(&task->mutex);
-
- spin_lock_irq(&task->lock);
- while (doit) {
- if (task->global_op_pending) {
- enum rfkill_global_sched_op op = task->op;
- task->global_op_pending = false;
- memset(task->sw_pending, 0, sizeof(task->sw_pending));
- spin_unlock_irq(&task->lock);
-
- __rfkill_handle_global_op(op);
-
- /* make sure we do at least one pass with
- * !task->global_op_pending */
- spin_lock_irq(&task->lock);
- continue;
- } else if (!rfkill_is_epo_lock_active()) {
- unsigned int i = 0;
-
- while (!task->global_op_pending &&
- i < RFKILL_TYPE_MAX) {
- if (test_and_clear_bit(i, task->sw_pending)) {
- bool c;
- c = test_and_clear_bit(i,
- task->sw_togglestate);
- spin_unlock_irq(&task->lock);
-
- __rfkill_handle_normal_op(i, c);
-
- spin_lock_irq(&task->lock);
- }
- i++;
- }
- }
- doit = task->global_op_pending;
- }
- spin_unlock_irq(&task->lock);
-
- mutex_unlock(&task->mutex);
-}
-
-static struct rfkill_task rfkill_task = {
- .dwork = __DELAYED_WORK_INITIALIZER(rfkill_task.dwork,
- rfkill_task_handler),
- .mutex = __MUTEX_INITIALIZER(rfkill_task.mutex),
- .lock = __SPIN_LOCK_UNLOCKED(rfkill_task.lock),
-};
-
-static unsigned long rfkill_ratelimit(const unsigned long last)
-{
- const unsigned long delay = msecs_to_jiffies(RFKILL_OPS_DELAY);
- return (time_after(jiffies, last + delay)) ? 0 : delay;
-}
-
-static void rfkill_schedule_ratelimited(void)
-{
- if (!delayed_work_pending(&rfkill_task.dwork)) {
- schedule_delayed_work(&rfkill_task.dwork,
- rfkill_ratelimit(rfkill_task.last_scheduled));
- rfkill_task.last_scheduled = jiffies;
- }
-}
-
-static void rfkill_schedule_global_op(enum rfkill_global_sched_op op)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&rfkill_task.lock, flags);
- rfkill_task.op = op;
- rfkill_task.global_op_pending = true;
- if (op == RFKILL_GLOBAL_OP_EPO && !rfkill_is_epo_lock_active()) {
- /* bypass the limiter for EPO */
- cancel_delayed_work(&rfkill_task.dwork);
- schedule_delayed_work(&rfkill_task.dwork, 0);
- rfkill_task.last_scheduled = jiffies;
- } else
- rfkill_schedule_ratelimited();
- spin_unlock_irqrestore(&rfkill_task.lock, flags);
-}
-
-static void rfkill_schedule_toggle(enum rfkill_type type)
-{
- unsigned long flags;
-
- if (rfkill_is_epo_lock_active())
- return;
-
- spin_lock_irqsave(&rfkill_task.lock, flags);
- if (!rfkill_task.global_op_pending) {
- set_bit(type, rfkill_task.sw_pending);
- change_bit(type, rfkill_task.sw_togglestate);
- rfkill_schedule_ratelimited();
- }
- spin_unlock_irqrestore(&rfkill_task.lock, flags);
-}
-
-static void rfkill_schedule_evsw_rfkillall(int state)
-{
- if (state) {
- switch (rfkill_master_switch_mode) {
- case RFKILL_INPUT_MASTER_UNBLOCKALL:
- rfkill_schedule_global_op(RFKILL_GLOBAL_OP_UNBLOCK);
- break;
- case RFKILL_INPUT_MASTER_RESTORE:
- rfkill_schedule_global_op(RFKILL_GLOBAL_OP_RESTORE);
- break;
- case RFKILL_INPUT_MASTER_DONOTHING:
- rfkill_schedule_global_op(RFKILL_GLOBAL_OP_UNLOCK);
- break;
- default:
- /* memory corruption or driver bug! fail safely */
- rfkill_schedule_global_op(RFKILL_GLOBAL_OP_EPO);
- WARN(1, "Unknown rfkill_master_switch_mode (%d), "
- "driver bug or memory corruption detected!\n",
- rfkill_master_switch_mode);
- break;
- }
- } else
- rfkill_schedule_global_op(RFKILL_GLOBAL_OP_EPO);
-}
-
-static void rfkill_event(struct input_handle *handle, unsigned int type,
- unsigned int code, int data)
-{
- if (type == EV_KEY && data == 1) {
- enum rfkill_type t;
-
- switch (code) {
- case KEY_WLAN:
- t = RFKILL_TYPE_WLAN;
- break;
- case KEY_BLUETOOTH:
- t = RFKILL_TYPE_BLUETOOTH;
- break;
- case KEY_UWB:
- t = RFKILL_TYPE_UWB;
- break;
- case KEY_WIMAX:
- t = RFKILL_TYPE_WIMAX;
- break;
- default:
- return;
- }
- rfkill_schedule_toggle(t);
- return;
- } else if (type == EV_SW) {
- switch (code) {
- case SW_RFKILL_ALL:
- rfkill_schedule_evsw_rfkillall(data);
- return;
- default:
- return;
- }
- }
-}
-
-static int rfkill_connect(struct input_handler *handler, struct input_dev *dev,
- const struct input_device_id *id)
-{
- struct input_handle *handle;
- int error;
-
- handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
- if (!handle)
- return -ENOMEM;
-
- handle->dev = dev;
- handle->handler = handler;
- handle->name = "rfkill";
-
- /* causes rfkill_start() to be called */
- error = input_register_handle(handle);
- if (error)
- goto err_free_handle;
-
- error = input_open_device(handle);
- if (error)
- goto err_unregister_handle;
-
- return 0;
-
- err_unregister_handle:
- input_unregister_handle(handle);
- err_free_handle:
- kfree(handle);
- return error;
-}
-
-static void rfkill_start(struct input_handle *handle)
-{
- /* Take event_lock to guard against configuration changes, we
- * should be able to deal with concurrency with rfkill_event()
- * just fine (which event_lock will also avoid). */
- spin_lock_irq(&handle->dev->event_lock);
-
- if (test_bit(EV_SW, handle->dev->evbit)) {
- if (test_bit(SW_RFKILL_ALL, handle->dev->swbit))
- rfkill_schedule_evsw_rfkillall(test_bit(SW_RFKILL_ALL,
- handle->dev->sw));
- /* add resync for further EV_SW events here */
- }
-
- spin_unlock_irq(&handle->dev->event_lock);
-}
-
-static void rfkill_disconnect(struct input_handle *handle)
-{
- input_close_device(handle);
- input_unregister_handle(handle);
- kfree(handle);
-}
-
-static const struct input_device_id rfkill_ids[] = {
- {
- .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
- .evbit = { BIT_MASK(EV_KEY) },
- .keybit = { [BIT_WORD(KEY_WLAN)] = BIT_MASK(KEY_WLAN) },
- },
- {
- .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
- .evbit = { BIT_MASK(EV_KEY) },
- .keybit = { [BIT_WORD(KEY_BLUETOOTH)] = BIT_MASK(KEY_BLUETOOTH) },
- },
- {
- .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
- .evbit = { BIT_MASK(EV_KEY) },
- .keybit = { [BIT_WORD(KEY_UWB)] = BIT_MASK(KEY_UWB) },
- },
- {
- .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
- .evbit = { BIT_MASK(EV_KEY) },
- .keybit = { [BIT_WORD(KEY_WIMAX)] = BIT_MASK(KEY_WIMAX) },
- },
- {
- .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_SWBIT,
- .evbit = { BIT(EV_SW) },
- .swbit = { [BIT_WORD(SW_RFKILL_ALL)] = BIT_MASK(SW_RFKILL_ALL) },
- },
- { }
-};
-
-static struct input_handler rfkill_handler = {
- .event = rfkill_event,
- .connect = rfkill_connect,
- .disconnect = rfkill_disconnect,
- .start = rfkill_start,
- .name = "rfkill",
- .id_table = rfkill_ids,
-};
-
-static int __init rfkill_handler_init(void)
-{
- if (rfkill_master_switch_mode >= RFKILL_INPUT_MASTER_MAX)
- return -EINVAL;
-
- /*
- * The penalty to not doing this is a possible RFKILL_OPS_DELAY delay
- * at the first use. Acceptable, but if we can avoid it, why not?
- */
- rfkill_task.last_scheduled =
- jiffies - msecs_to_jiffies(RFKILL_OPS_DELAY) - 1;
- return input_register_handler(&rfkill_handler);
-}
-
-static void __exit rfkill_handler_exit(void)
-{
- input_unregister_handler(&rfkill_handler);
- cancel_delayed_work_sync(&rfkill_task.dwork);
- rfkill_remove_epo_lock();
-}
-
-module_init(rfkill_handler_init);
-module_exit(rfkill_handler_exit);
diff --git a/net/rfkill/rfkill.c b/net/rfkill/rfkill.c
deleted file mode 100644
index 4f5a83183c9..00000000000
--- a/net/rfkill/rfkill.c
+++ /dev/null
@@ -1,855 +0,0 @@
-/*
- * Copyright (C) 2006 - 2007 Ivo van Doorn
- * Copyright (C) 2007 Dmitry Torokhov
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the
- * Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/workqueue.h>
-#include <linux/capability.h>
-#include <linux/list.h>
-#include <linux/mutex.h>
-#include <linux/rfkill.h>
-
-/* Get declaration of rfkill_switch_all() to shut up sparse. */
-#include "rfkill-input.h"
-
-
-MODULE_AUTHOR("Ivo van Doorn <IvDoorn@gmail.com>");
-MODULE_VERSION("1.0");
-MODULE_DESCRIPTION("RF switch support");
-MODULE_LICENSE("GPL");
-
-static LIST_HEAD(rfkill_list); /* list of registered rf switches */
-static DEFINE_MUTEX(rfkill_global_mutex);
-
-static unsigned int rfkill_default_state = RFKILL_STATE_UNBLOCKED;
-module_param_named(default_state, rfkill_default_state, uint, 0444);
-MODULE_PARM_DESC(default_state,
- "Default initial state for all radio types, 0 = radio off");
-
-struct rfkill_gsw_state {
- enum rfkill_state current_state;
- enum rfkill_state default_state;
-};
-
-static struct rfkill_gsw_state rfkill_global_states[RFKILL_TYPE_MAX];
-static unsigned long rfkill_states_lockdflt[BITS_TO_LONGS(RFKILL_TYPE_MAX)];
-static bool rfkill_epo_lock_active;
-
-
-#ifdef CONFIG_RFKILL_LEDS
-static void rfkill_led_trigger(struct rfkill *rfkill,
- enum rfkill_state state)
-{
- struct led_trigger *led = &rfkill->led_trigger;
-
- if (!led->name)
- return;
- if (state != RFKILL_STATE_UNBLOCKED)
- led_trigger_event(led, LED_OFF);
- else
- led_trigger_event(led, LED_FULL);
-}
-
-static void rfkill_led_trigger_activate(struct led_classdev *led)
-{
- struct rfkill *rfkill = container_of(led->trigger,
- struct rfkill, led_trigger);
-
- rfkill_led_trigger(rfkill, rfkill->state);
-}
-#else
-static inline void rfkill_led_trigger(struct rfkill *rfkill,
- enum rfkill_state state)
-{
-}
-#endif /* CONFIG_RFKILL_LEDS */
-
-static void rfkill_uevent(struct rfkill *rfkill)
-{
- kobject_uevent(&rfkill->dev.kobj, KOBJ_CHANGE);
-}
-
-static void update_rfkill_state(struct rfkill *rfkill)
-{
- enum rfkill_state newstate, oldstate;
-
- if (rfkill->get_state) {
- mutex_lock(&rfkill->mutex);
- if (!rfkill->get_state(rfkill->data, &newstate)) {
- oldstate = rfkill->state;
- rfkill->state = newstate;
- if (oldstate != newstate)
- rfkill_uevent(rfkill);
- }
- mutex_unlock(&rfkill->mutex);
- }
- rfkill_led_trigger(rfkill, rfkill->state);
-}
-
-/**
- * rfkill_toggle_radio - wrapper for toggle_radio hook
- * @rfkill: the rfkill struct to use
- * @force: calls toggle_radio even if cache says it is not needed,
- * and also makes sure notifications of the state will be
- * sent even if it didn't change
- * @state: the new state to call toggle_radio() with
- *
- * Calls rfkill->toggle_radio, enforcing the API for toggle_radio
- * calls and handling all the red tape such as issuing notifications
- * if the call is successful.
- *
- * Suspended devices are not touched at all, and -EAGAIN is returned.
- *
- * Note that the @force parameter cannot override a (possibly cached)
- * state of RFKILL_STATE_HARD_BLOCKED. Any device making use of
- * RFKILL_STATE_HARD_BLOCKED implements either get_state() or
- * rfkill_force_state(), so the cache either is bypassed or valid.
- *
- * Note that we do call toggle_radio for RFKILL_STATE_SOFT_BLOCKED
- * even if the radio is in RFKILL_STATE_HARD_BLOCKED state, so as to
- * give the driver a hint that it should double-BLOCK the transmitter.
- *
- * Caller must have acquired rfkill->mutex.
- */
-static int rfkill_toggle_radio(struct rfkill *rfkill,
- enum rfkill_state state,
- int force)
-{
- int retval = 0;
- enum rfkill_state oldstate, newstate;
-
- if (unlikely(rfkill->dev.power.power_state.event & PM_EVENT_SLEEP))
- return -EBUSY;
-
- oldstate = rfkill->state;
-
- if (rfkill->get_state && !force &&
- !rfkill->get_state(rfkill->data, &newstate)) {
- rfkill->state = newstate;
- }
-
- switch (state) {
- case RFKILL_STATE_HARD_BLOCKED:
- /* typically happens when refreshing hardware state,
- * such as on resume */
- state = RFKILL_STATE_SOFT_BLOCKED;
- break;
- case RFKILL_STATE_UNBLOCKED:
- /* force can't override this, only rfkill_force_state() can */
- if (rfkill->state == RFKILL_STATE_HARD_BLOCKED)
- return -EPERM;
- break;
- case RFKILL_STATE_SOFT_BLOCKED:
- /* nothing to do, we want to give drivers the hint to double
- * BLOCK even a transmitter that is already in state
- * RFKILL_STATE_HARD_BLOCKED */
- break;
- default:
- WARN(1, KERN_WARNING
- "rfkill: illegal state %d passed as parameter "
- "to rfkill_toggle_radio\n", state);
- return -EINVAL;
- }
-
- if (force || state != rfkill->state) {
- retval = rfkill->toggle_radio(rfkill->data, state);
- /* never allow a HARD->SOFT downgrade! */
- if (!retval && rfkill->state != RFKILL_STATE_HARD_BLOCKED)
- rfkill->state = state;
- }
-
- if (force || rfkill->state != oldstate)
- rfkill_uevent(rfkill);
-
- rfkill_led_trigger(rfkill, rfkill->state);
- return retval;
-}
-
-/**
- * __rfkill_switch_all - Toggle state of all switches of given type
- * @type: type of interfaces to be affected
- * @state: the new state
- *
- * This function toggles the state of all switches of given type,
- * unless a specific switch is claimed by userspace (in which case,
- * that switch is left alone) or suspended.
- *
- * Caller must have acquired rfkill_global_mutex.
- */
-static void __rfkill_switch_all(const enum rfkill_type type,
- const enum rfkill_state state)
-{
- struct rfkill *rfkill;
-
- if (WARN((state >= RFKILL_STATE_MAX || type >= RFKILL_TYPE_MAX),
- KERN_WARNING
- "rfkill: illegal state %d or type %d "
- "passed as parameter to __rfkill_switch_all\n",
- state, type))
- return;
-
- rfkill_global_states[type].current_state = state;
- list_for_each_entry(rfkill, &rfkill_list, node) {
- if (rfkill->type == type) {
- mutex_lock(&rfkill->mutex);
- rfkill_toggle_radio(rfkill, state, 0);
- mutex_unlock(&rfkill->mutex);
- rfkill_led_trigger(rfkill, rfkill->state);
- }
- }
-}
-
-/**
- * rfkill_switch_all - Toggle state of all switches of given type
- * @type: type of interfaces to be affected
- * @state: the new state
- *
- * Acquires rfkill_global_mutex and calls __rfkill_switch_all(@type, @state).
- * Please refer to __rfkill_switch_all() for details.
- *
- * Does nothing if the EPO lock is active.
- */
-void rfkill_switch_all(enum rfkill_type type, enum rfkill_state state)
-{
- mutex_lock(&rfkill_global_mutex);
- if (!rfkill_epo_lock_active)
- __rfkill_switch_all(type, state);
- mutex_unlock(&rfkill_global_mutex);
-}
-EXPORT_SYMBOL(rfkill_switch_all);
-
-/**
- * rfkill_epo - emergency power off all transmitters
- *
- * This kicks all non-suspended rfkill devices to RFKILL_STATE_SOFT_BLOCKED,
- * ignoring everything in its path but rfkill_global_mutex and rfkill->mutex.
- *
- * The global state before the EPO is saved and can be restored later
- * using rfkill_restore_states().
- */
-void rfkill_epo(void)
-{
- struct rfkill *rfkill;
- int i;
-
- mutex_lock(&rfkill_global_mutex);
-
- rfkill_epo_lock_active = true;
- list_for_each_entry(rfkill, &rfkill_list, node) {
- mutex_lock(&rfkill->mutex);
- rfkill_toggle_radio(rfkill, RFKILL_STATE_SOFT_BLOCKED, 1);
- mutex_unlock(&rfkill->mutex);
- }
- for (i = 0; i < RFKILL_TYPE_MAX; i++) {
- rfkill_global_states[i].default_state =
- rfkill_global_states[i].current_state;
- rfkill_global_states[i].current_state =
- RFKILL_STATE_SOFT_BLOCKED;
- }
- mutex_unlock(&rfkill_global_mutex);
- rfkill_led_trigger(rfkill, rfkill->state);
-}
-EXPORT_SYMBOL_GPL(rfkill_epo);
-
-/**
- * rfkill_restore_states - restore global states
- *
- * Restore (and sync switches to) the global state from the
- * states in rfkill_default_states. This can undo the effects of
- * a call to rfkill_epo().
- */
-void rfkill_restore_states(void)
-{
- int i;
-
- mutex_lock(&rfkill_global_mutex);
-
- rfkill_epo_lock_active = false;
- for (i = 0; i < RFKILL_TYPE_MAX; i++)
- __rfkill_switch_all(i, rfkill_global_states[i].default_state);
- mutex_unlock(&rfkill_global_mutex);
-}
-EXPORT_SYMBOL_GPL(rfkill_restore_states);
-
-/**
- * rfkill_remove_epo_lock - unlock state changes
- *
- * Used by rfkill-input manually unlock state changes, when
- * the EPO switch is deactivated.
- */
-void rfkill_remove_epo_lock(void)
-{
- mutex_lock(&rfkill_global_mutex);
- rfkill_epo_lock_active = false;
- mutex_unlock(&rfkill_global_mutex);
-}
-EXPORT_SYMBOL_GPL(rfkill_remove_epo_lock);
-
-/**
- * rfkill_is_epo_lock_active - returns true EPO is active
- *
- * Returns 0 (false) if there is NOT an active EPO contidion,
- * and 1 (true) if there is an active EPO contition, which
- * locks all radios in one of the BLOCKED states.
- *
- * Can be called in atomic context.
- */
-bool rfkill_is_epo_lock_active(void)
-{
- return rfkill_epo_lock_active;
-}
-EXPORT_SYMBOL_GPL(rfkill_is_epo_lock_active);
-
-/**
- * rfkill_get_global_state - returns global state for a type
- * @type: the type to get the global state of
- *
- * Returns the current global state for a given wireless
- * device type.
- */
-enum rfkill_state rfkill_get_global_state(const enum rfkill_type type)
-{
- return rfkill_global_states[type].current_state;
-}
-EXPORT_SYMBOL_GPL(rfkill_get_global_state);
-
-/**
- * rfkill_force_state - Force the internal rfkill radio state
- * @rfkill: pointer to the rfkill class to modify.
- * @state: the current radio state the class should be forced to.
- *
- * This function updates the internal state of the radio cached
- * by the rfkill class. It should be used when the driver gets
- * a notification by the firmware/hardware of the current *real*
- * state of the radio rfkill switch.
- *
- * Devices which are subject to external changes on their rfkill
- * state (such as those caused by a hardware rfkill line) MUST
- * have their driver arrange to call rfkill_force_state() as soon
- * as possible after such a change.
- *
- * This function may not be called from an atomic context.
- */
-int rfkill_force_state(struct rfkill *rfkill, enum rfkill_state state)
-{
- enum rfkill_state oldstate;
-
- BUG_ON(!rfkill);
- if (WARN((state >= RFKILL_STATE_MAX),
- KERN_WARNING
- "rfkill: illegal state %d passed as parameter "
- "to rfkill_force_state\n", state))
- return -EINVAL;
-
- mutex_lock(&rfkill->mutex);
-
- oldstate = rfkill->state;
- rfkill->state = state;
-
- if (state != oldstate)
- rfkill_uevent(rfkill);
-
- mutex_unlock(&rfkill->mutex);
- rfkill_led_trigger(rfkill, rfkill->state);
-
- return 0;
-}
-EXPORT_SYMBOL(rfkill_force_state);
-
-static ssize_t rfkill_name_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct rfkill *rfkill = to_rfkill(dev);
-
- return sprintf(buf, "%s\n", rfkill->name);
-}
-
-static const char *rfkill_get_type_str(enum rfkill_type type)
-{
- switch (type) {
- case RFKILL_TYPE_WLAN:
- return "wlan";
- case RFKILL_TYPE_BLUETOOTH:
- return "bluetooth";
- case RFKILL_TYPE_UWB:
- return "ultrawideband";
- case RFKILL_TYPE_WIMAX:
- return "wimax";
- case RFKILL_TYPE_WWAN:
- return "wwan";
- default:
- BUG();
- }
-}
-
-static ssize_t rfkill_type_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct rfkill *rfkill = to_rfkill(dev);
-
- return sprintf(buf, "%s\n", rfkill_get_type_str(rfkill->type));
-}
-
-static ssize_t rfkill_state_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct rfkill *rfkill = to_rfkill(dev);
-
- update_rfkill_state(rfkill);
- return sprintf(buf, "%d\n", rfkill->state);
-}
-
-static ssize_t rfkill_state_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct rfkill *rfkill = to_rfkill(dev);
- unsigned long state;
- int error;
-
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
-
- error = strict_strtoul(buf, 0, &state);
- if (error)
- return error;
-
- /* RFKILL_STATE_HARD_BLOCKED is illegal here... */
- if (state != RFKILL_STATE_UNBLOCKED &&
- state != RFKILL_STATE_SOFT_BLOCKED)
- return -EINVAL;
-
- error = mutex_lock_killable(&rfkill->mutex);
- if (error)
- return error;
-
- if (!rfkill_epo_lock_active)
- error = rfkill_toggle_radio(rfkill, state, 0);
- else
- error = -EPERM;
-
- mutex_unlock(&rfkill->mutex);
-
- return error ? error : count;
-}
-
-static ssize_t rfkill_claim_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- return sprintf(buf, "%d\n", 0);
-}
-
-static ssize_t rfkill_claim_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- return -EOPNOTSUPP;
-}
-
-static struct device_attribute rfkill_dev_attrs[] = {
- __ATTR(name, S_IRUGO, rfkill_name_show, NULL),
- __ATTR(type, S_IRUGO, rfkill_type_show, NULL),
- __ATTR(state, S_IRUGO|S_IWUSR, rfkill_state_show, rfkill_state_store),
- __ATTR(claim, S_IRUGO|S_IWUSR, rfkill_claim_show, rfkill_claim_store),
- __ATTR_NULL
-};
-
-static void rfkill_release(struct device *dev)
-{
- struct rfkill *rfkill = to_rfkill(dev);
-
- kfree(rfkill);
- module_put(THIS_MODULE);
-}
-
-#ifdef CONFIG_PM
-static int rfkill_suspend(struct device *dev, pm_message_t state)
-{
- struct rfkill *rfkill = to_rfkill(dev);
-
- /* mark class device as suspended */
- if (dev->power.power_state.event != state.event)
- dev->power.power_state = state;
-
- /* store state for the resume handler */
- rfkill->state_for_resume = rfkill->state;
-
- return 0;
-}
-
-static int rfkill_resume(struct device *dev)
-{
- struct rfkill *rfkill = to_rfkill(dev);
- enum rfkill_state newstate;
-
- if (dev->power.power_state.event != PM_EVENT_ON) {
- mutex_lock(&rfkill->mutex);
-
- dev->power.power_state.event = PM_EVENT_ON;
-
- /*
- * rfkill->state could have been modified before we got
- * called, and won't be updated by rfkill_toggle_radio()
- * in force mode. Sync it FIRST.
- */
- if (rfkill->get_state &&
- !rfkill->get_state(rfkill->data, &newstate))
- rfkill->state = newstate;
-
- /*
- * If we are under EPO, kick transmitter offline,
- * otherwise restore to pre-suspend state.
- *
- * Issue a notification in any case
- */
- rfkill_toggle_radio(rfkill,
- rfkill_epo_lock_active ?
- RFKILL_STATE_SOFT_BLOCKED :
- rfkill->state_for_resume,
- 1);
-
- mutex_unlock(&rfkill->mutex);
- rfkill_led_trigger(rfkill, rfkill->state);
- }
-
- return 0;
-}
-#else
-#define rfkill_suspend NULL
-#define rfkill_resume NULL
-#endif
-
-static int rfkill_dev_uevent(struct device *dev, struct kobj_uevent_env *env)
-{
- struct rfkill *rfkill = to_rfkill(dev);
- int error;
-
- error = add_uevent_var(env, "RFKILL_NAME=%s", rfkill->name);
- if (error)
- return error;
- error = add_uevent_var(env, "RFKILL_TYPE=%s",
- rfkill_get_type_str(rfkill->type));
- if (error)
- return error;
- error = add_uevent_var(env, "RFKILL_STATE=%d", rfkill->state);
- return error;
-}
-
-static struct class rfkill_class = {
- .name = "rfkill",
- .dev_release = rfkill_release,
- .dev_attrs = rfkill_dev_attrs,
- .suspend = rfkill_suspend,
- .resume = rfkill_resume,
- .dev_uevent = rfkill_dev_uevent,
-};
-
-static int rfkill_check_duplicity(const struct rfkill *rfkill)
-{
- struct rfkill *p;
- unsigned long seen[BITS_TO_LONGS(RFKILL_TYPE_MAX)];
-
- memset(seen, 0, sizeof(seen));
-
- list_for_each_entry(p, &rfkill_list, node) {
- if (WARN((p == rfkill), KERN_WARNING
- "rfkill: illegal attempt to register "
- "an already registered rfkill struct\n"))
- return -EEXIST;
- set_bit(p->type, seen);
- }
-
- /* 0: first switch of its kind */
- return (test_bit(rfkill->type, seen)) ? 1 : 0;
-}
-
-static int rfkill_add_switch(struct rfkill *rfkill)
-{
- int error;
-
- mutex_lock(&rfkill_global_mutex);
-
- error = rfkill_check_duplicity(rfkill);
- if (error < 0)
- goto unlock_out;
-
- if (!error) {
- /* lock default after first use */
- set_bit(rfkill->type, rfkill_states_lockdflt);
- rfkill_global_states[rfkill->type].current_state =
- rfkill_global_states[rfkill->type].default_state;
- }
-
- rfkill_toggle_radio(rfkill,
- rfkill_global_states[rfkill->type].current_state,
- 0);
-
- list_add_tail(&rfkill->node, &rfkill_list);
-
- error = 0;
-unlock_out:
- mutex_unlock(&rfkill_global_mutex);
-
- return error;
-}
-
-static void rfkill_remove_switch(struct rfkill *rfkill)
-{
- mutex_lock(&rfkill_global_mutex);
- list_del_init(&rfkill->node);
- mutex_unlock(&rfkill_global_mutex);
-
- mutex_lock(&rfkill->mutex);
- rfkill_toggle_radio(rfkill, RFKILL_STATE_SOFT_BLOCKED, 1);
- mutex_unlock(&rfkill->mutex);
-}
-
-/**
- * rfkill_allocate - allocate memory for rfkill structure.
- * @parent: device that has rf switch on it
- * @type: type of the switch (RFKILL_TYPE_*)
- *
- * This function should be called by the network driver when it needs
- * rfkill structure. Once the structure is allocated the driver should
- * finish its initialization by setting the name, private data, enable_radio
- * and disable_radio methods and then register it with rfkill_register().
- *
- * NOTE: If registration fails the structure shoudl be freed by calling
- * rfkill_free() otherwise rfkill_unregister() should be used.
- */
-struct rfkill * __must_check rfkill_allocate(struct device *parent,
- enum rfkill_type type)
-{
- struct rfkill *rfkill;
- struct device *dev;
-
- if (WARN((type >= RFKILL_TYPE_MAX),
- KERN_WARNING
- "rfkill: illegal type %d passed as parameter "
- "to rfkill_allocate\n", type))
- return NULL;
-
- rfkill = kzalloc(sizeof(struct rfkill), GFP_KERNEL);
- if (!rfkill)
- return NULL;
-
- mutex_init(&rfkill->mutex);
- INIT_LIST_HEAD(&rfkill->node);
- rfkill->type = type;
-
- dev = &rfkill->dev;
- dev->class = &rfkill_class;
- dev->parent = parent;
- device_initialize(dev);
-
- __module_get(THIS_MODULE);
-
- return rfkill;
-}
-EXPORT_SYMBOL(rfkill_allocate);
-
-/**
- * rfkill_free - Mark rfkill structure for deletion
- * @rfkill: rfkill structure to be destroyed
- *
- * Decrements reference count of the rfkill structure so it is destroyed.
- * Note that rfkill_free() should _not_ be called after rfkill_unregister().
- */
-void rfkill_free(struct rfkill *rfkill)
-{
- if (rfkill)
- put_device(&rfkill->dev);
-}
-EXPORT_SYMBOL(rfkill_free);
-
-static void rfkill_led_trigger_register(struct rfkill *rfkill)
-{
-#ifdef CONFIG_RFKILL_LEDS
- int error;
-
- if (!rfkill->led_trigger.name)
- rfkill->led_trigger.name = dev_name(&rfkill->dev);
- if (!rfkill->led_trigger.activate)
- rfkill->led_trigger.activate = rfkill_led_trigger_activate;
- error = led_trigger_register(&rfkill->led_trigger);
- if (error)
- rfkill->led_trigger.name = NULL;
-#endif /* CONFIG_RFKILL_LEDS */
-}
-
-static void rfkill_led_trigger_unregister(struct rfkill *rfkill)
-{
-#ifdef CONFIG_RFKILL_LEDS
- if (rfkill->led_trigger.name) {
- led_trigger_unregister(&rfkill->led_trigger);
- rfkill->led_trigger.name = NULL;
- }
-#endif
-}
-
-/**
- * rfkill_register - Register a rfkill structure.
- * @rfkill: rfkill structure to be registered
- *
- * This function should be called by the network driver when the rfkill
- * structure needs to be registered. Immediately from registration the
- * switch driver should be able to service calls to toggle_radio.
- */
-int __must_check rfkill_register(struct rfkill *rfkill)
-{
- static atomic_t rfkill_no = ATOMIC_INIT(0);
- struct device *dev = &rfkill->dev;
- int error;
-
- if (WARN((!rfkill || !rfkill->toggle_radio ||
- rfkill->type >= RFKILL_TYPE_MAX ||
- rfkill->state >= RFKILL_STATE_MAX),
- KERN_WARNING
- "rfkill: attempt to register a "
- "badly initialized rfkill struct\n"))
- return -EINVAL;
-
- dev_set_name(dev, "rfkill%ld", (long)atomic_inc_return(&rfkill_no) - 1);
-
- rfkill_led_trigger_register(rfkill);
-
- error = rfkill_add_switch(rfkill);
- if (error) {
- rfkill_led_trigger_unregister(rfkill);
- return error;
- }
-
- error = device_add(dev);
- if (error) {
- rfkill_remove_switch(rfkill);
- rfkill_led_trigger_unregister(rfkill);
- return error;
- }
-
- return 0;
-}
-EXPORT_SYMBOL(rfkill_register);
-
-/**
- * rfkill_unregister - Unregister a rfkill structure.
- * @rfkill: rfkill structure to be unregistered
- *
- * This function should be called by the network driver during device
- * teardown to destroy rfkill structure. Note that rfkill_free() should
- * _not_ be called after rfkill_unregister().
- */
-void rfkill_unregister(struct rfkill *rfkill)
-{
- BUG_ON(!rfkill);
- device_del(&rfkill->dev);
- rfkill_remove_switch(rfkill);
- rfkill_led_trigger_unregister(rfkill);
- put_device(&rfkill->dev);
-}
-EXPORT_SYMBOL(rfkill_unregister);
-
-/**
- * rfkill_set_default - set initial value for a switch type
- * @type - the type of switch to set the default state of
- * @state - the new default state for that group of switches
- *
- * Sets the initial state rfkill should use for a given type.
- * The following initial states are allowed: RFKILL_STATE_SOFT_BLOCKED
- * and RFKILL_STATE_UNBLOCKED.
- *
- * This function is meant to be used by platform drivers for platforms
- * that can save switch state across power down/reboot.
- *
- * The default state for each switch type can be changed exactly once.
- * After a switch of that type is registered, the default state cannot
- * be changed anymore. This guards against multiple drivers it the
- * same platform trying to set the initial switch default state, which
- * is not allowed.
- *
- * Returns -EPERM if the state has already been set once or is in use,
- * so drivers likely want to either ignore or at most printk(KERN_NOTICE)
- * if this function returns -EPERM.
- *
- * Returns 0 if the new default state was set, or an error if it
- * could not be set.
- */
-int rfkill_set_default(enum rfkill_type type, enum rfkill_state state)
-{
- int error;
-
- if (WARN((type >= RFKILL_TYPE_MAX ||
- (state != RFKILL_STATE_SOFT_BLOCKED &&
- state != RFKILL_STATE_UNBLOCKED)),
- KERN_WARNING
- "rfkill: illegal state %d or type %d passed as "
- "parameter to rfkill_set_default\n", state, type))
- return -EINVAL;
-
- mutex_lock(&rfkill_global_mutex);
-
- if (!test_and_set_bit(type, rfkill_states_lockdflt)) {
- rfkill_global_states[type].default_state = state;
- rfkill_global_states[type].current_state = state;
- error = 0;
- } else
- error = -EPERM;
-
- mutex_unlock(&rfkill_global_mutex);
- return error;
-}
-EXPORT_SYMBOL_GPL(rfkill_set_default);
-
-/*
- * Rfkill module initialization/deinitialization.
- */
-static int __init rfkill_init(void)
-{
- int error;
- int i;
-
- /* RFKILL_STATE_HARD_BLOCKED is illegal here... */
- if (rfkill_default_state != RFKILL_STATE_SOFT_BLOCKED &&
- rfkill_default_state != RFKILL_STATE_UNBLOCKED)
- return -EINVAL;
-
- for (i = 0; i < RFKILL_TYPE_MAX; i++)
- rfkill_global_states[i].default_state = rfkill_default_state;
-
- error = class_register(&rfkill_class);
- if (error) {
- printk(KERN_ERR "rfkill: unable to register rfkill class\n");
- return error;
- }
-
- return 0;
-}
-
-static void __exit rfkill_exit(void)
-{
- class_unregister(&rfkill_class);
-}
-
-subsys_initcall(rfkill_init);
-module_exit(rfkill_exit);
diff --git a/net/rfkill/rfkill-input.h b/net/rfkill/rfkill.h
index fe8df6b5b93..d1117cb6e4d 100644
--- a/net/rfkill/rfkill-input.h
+++ b/net/rfkill/rfkill.h
@@ -1,5 +1,6 @@
/*
* Copyright (C) 2007 Ivo van Doorn
+ * Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
*/
/*
@@ -11,11 +12,16 @@
#ifndef __RFKILL_INPUT_H
#define __RFKILL_INPUT_H
-void rfkill_switch_all(enum rfkill_type type, enum rfkill_state state);
+/* core code */
+void rfkill_switch_all(const enum rfkill_type type, bool blocked);
void rfkill_epo(void);
void rfkill_restore_states(void);
void rfkill_remove_epo_lock(void);
bool rfkill_is_epo_lock_active(void);
-enum rfkill_state rfkill_get_global_state(const enum rfkill_type type);
+bool rfkill_get_global_sw_state(const enum rfkill_type type);
+
+/* input handler */
+int rfkill_handler_init(void);
+void rfkill_handler_exit(void);
#endif /* __RFKILL_INPUT_H */
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 0759f32e9dc..09cdcdfe7e9 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -135,6 +135,7 @@ static int tc_ctl_tfilter(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
unsigned long cl;
unsigned long fh;
int err;
+ int tp_created = 0;
if (net != &init_net)
return -EINVAL;
@@ -266,10 +267,7 @@ replay:
goto errout;
}
- spin_lock_bh(root_lock);
- tp->next = *back;
- *back = tp;
- spin_unlock_bh(root_lock);
+ tp_created = 1;
} else if (tca[TCA_KIND] && nla_strcmp(tca[TCA_KIND], tp->ops->kind))
goto errout;
@@ -296,8 +294,11 @@ replay:
switch (n->nlmsg_type) {
case RTM_NEWTFILTER:
err = -EEXIST;
- if (n->nlmsg_flags & NLM_F_EXCL)
+ if (n->nlmsg_flags & NLM_F_EXCL) {
+ if (tp_created)
+ tcf_destroy(tp);
goto errout;
+ }
break;
case RTM_DELTFILTER:
err = tp->ops->delete(tp, fh);
@@ -314,8 +315,18 @@ replay:
}
err = tp->ops->change(tp, cl, t->tcm_handle, tca, &fh);
- if (err == 0)
+ if (err == 0) {
+ if (tp_created) {
+ spin_lock_bh(root_lock);
+ tp->next = *back;
+ *back = tp;
+ spin_unlock_bh(root_lock);
+ }
tfilter_notify(skb, n, tp, fh, RTM_NEWTFILTER);
+ } else {
+ if (tp_created)
+ tcf_destroy(tp);
+ }
errout:
if (cl)
diff --git a/net/sched/cls_cgroup.c b/net/sched/cls_cgroup.c
index 1ab4542e61e..0f815cc6a3d 100644
--- a/net/sched/cls_cgroup.c
+++ b/net/sched/cls_cgroup.c
@@ -98,8 +98,7 @@ static int cls_cgroup_classify(struct sk_buff *skb, struct tcf_proto *tp,
struct tcf_result *res)
{
struct cls_cgroup_head *head = tp->root;
- struct cgroup_cls_state *cs;
- int ret = 0;
+ u32 classid;
/*
* Due to the nature of the classifier it is required to ignore all
@@ -115,17 +114,18 @@ static int cls_cgroup_classify(struct sk_buff *skb, struct tcf_proto *tp,
return -1;
rcu_read_lock();
- cs = task_cls_state(current);
- if (cs->classid && tcf_em_tree_match(skb, &head->ematches, NULL)) {
- res->classid = cs->classid;
- res->class = 0;
- ret = tcf_exts_exec(skb, &head->exts, res);
- } else
- ret = -1;
-
+ classid = task_cls_state(current)->classid;
rcu_read_unlock();
- return ret;
+ if (!classid)
+ return -1;
+
+ if (!tcf_em_tree_match(skb, &head->ematches, NULL))
+ return -1;
+
+ res->classid = classid;
+ res->class = 0;
+ return tcf_exts_exec(skb, &head->exts, res);
}
static unsigned long cls_cgroup_get(struct tcf_proto *tp, u32 handle)
diff --git a/net/sched/cls_flow.c b/net/sched/cls_flow.c
index 0ef4e3065bc..9402a7fd378 100644
--- a/net/sched/cls_flow.c
+++ b/net/sched/cls_flow.c
@@ -84,7 +84,7 @@ static u32 flow_get_dst(const struct sk_buff *skb)
case htons(ETH_P_IPV6):
return ntohl(ipv6_hdr(skb)->daddr.s6_addr32[3]);
default:
- return addr_fold(skb->dst) ^ (__force u16)skb->protocol;
+ return addr_fold(skb_dst(skb)) ^ (__force u16)skb->protocol;
}
}
@@ -163,7 +163,7 @@ static u32 flow_get_proto_dst(const struct sk_buff *skb)
break;
}
default:
- res = addr_fold(skb->dst) ^ (__force u16)skb->protocol;
+ res = addr_fold(skb_dst(skb)) ^ (__force u16)skb->protocol;
}
return res;
@@ -251,8 +251,8 @@ fallback:
static u32 flow_get_rtclassid(const struct sk_buff *skb)
{
#ifdef CONFIG_NET_CLS_ROUTE
- if (skb->dst)
- return skb->dst->tclassid;
+ if (skb_dst(skb))
+ return skb_dst(skb)->tclassid;
#endif
return 0;
}
diff --git a/net/sched/cls_route.c b/net/sched/cls_route.c
index bdf1f4172ee..dd872d5383e 100644
--- a/net/sched/cls_route.c
+++ b/net/sched/cls_route.c
@@ -137,7 +137,7 @@ static int route4_classify(struct sk_buff *skb, struct tcf_proto *tp,
u32 id, h;
int iif, dont_cache = 0;
- if ((dst = skb->dst) == NULL)
+ if ((dst = skb_dst(skb)) == NULL)
goto failure;
id = dst->tclassid;
diff --git a/net/sched/em_meta.c b/net/sched/em_meta.c
index fad596bf32d..266151ae85a 100644
--- a/net/sched/em_meta.c
+++ b/net/sched/em_meta.c
@@ -246,11 +246,11 @@ META_COLLECTOR(int_tcindex)
META_COLLECTOR(int_rtclassid)
{
- if (unlikely(skb->dst == NULL))
+ if (unlikely(skb_dst(skb) == NULL))
*err = -1;
else
#ifdef CONFIG_NET_CLS_ROUTE
- dst->value = skb->dst->tclassid;
+ dst->value = skb_dst(skb)->tclassid;
#else
dst->value = 0;
#endif
@@ -258,10 +258,10 @@ META_COLLECTOR(int_rtclassid)
META_COLLECTOR(int_rtiif)
{
- if (unlikely(skb->rtable == NULL))
+ if (unlikely(skb_rtable(skb) == NULL))
*err = -1;
else
- dst->value = skb->rtable->fl.iif;
+ dst->value = skb_rtable(skb)->fl.iif;
}
/**************************************************************************
diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index 5022f9c1f34..362c2811b2d 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -372,7 +372,7 @@ cftree_update(struct hfsc_class *cl)
* ism: (psched_us/byte) << ISM_SHIFT
* dx: psched_us
*
- * The clock source resolution with ktime is 1.024us.
+ * The clock source resolution with ktime and PSCHED_SHIFT 10 is 1.024us.
*
* sm and ism are scaled in order to keep effective digits.
* SM_SHIFT and ISM_SHIFT are selected to keep at least 4 effective
@@ -383,9 +383,11 @@ cftree_update(struct hfsc_class *cl)
* bytes/1.024us 12.8e-3 128e-3 1280e-3 12800e-3 128000e-3
*
* 1.024us/byte 78.125 7.8125 0.78125 0.078125 0.0078125
+ *
+ * So, for PSCHED_SHIFT 10 we need: SM_SHIFT 20, ISM_SHIFT 18.
*/
-#define SM_SHIFT 20
-#define ISM_SHIFT 18
+#define SM_SHIFT (30 - PSCHED_SHIFT)
+#define ISM_SHIFT (8 + PSCHED_SHIFT)
#define SM_MASK ((1ULL << SM_SHIFT) - 1)
#define ISM_MASK ((1ULL << ISM_SHIFT) - 1)
diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c
index 33133d27b53..8706920a6d4 100644
--- a/net/sched/sch_sfq.c
+++ b/net/sched/sch_sfq.c
@@ -149,7 +149,7 @@ static unsigned sfq_hash(struct sfq_sched_data *q, struct sk_buff *skb)
break;
}
default:
- h = (unsigned long)skb->dst ^ skb->protocol;
+ h = (unsigned long)skb_dst(skb) ^ skb->protocol;
h2 = (unsigned long)skb->sk;
}
diff --git a/net/sched/sch_teql.c b/net/sched/sch_teql.c
index a886496bdc3..cb1cb1e76b9 100644
--- a/net/sched/sch_teql.c
+++ b/net/sched/sch_teql.c
@@ -222,7 +222,7 @@ __teql_resolve(struct sk_buff *skb, struct sk_buff *skb_res, struct net_device *
{
struct netdev_queue *dev_queue = netdev_get_tx_queue(dev, 0);
struct teql_sched_data *q = qdisc_priv(dev_queue->qdisc);
- struct neighbour *mn = skb->dst->neighbour;
+ struct neighbour *mn = skb_dst(skb)->neighbour;
struct neighbour *n = q->ncache;
if (mn->tbl == NULL)
@@ -262,8 +262,8 @@ static inline int teql_resolve(struct sk_buff *skb,
return -ENODEV;
if (dev->header_ops == NULL ||
- skb->dst == NULL ||
- skb->dst->neighbour == NULL)
+ skb_dst(skb) == NULL ||
+ skb_dst(skb)->neighbour == NULL)
return 0;
return __teql_resolve(skb, skb_res, dev);
}
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index f4b23043b61..525864bf4f0 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -293,7 +293,8 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a
* told otherwise.
*/
asoc->peer.ipv4_address = 1;
- asoc->peer.ipv6_address = 1;
+ if (asoc->base.sk->sk_family == PF_INET6)
+ asoc->peer.ipv6_address = 1;
INIT_LIST_HEAD(&asoc->asocs);
asoc->autoclose = sp->autoclose;
@@ -566,6 +567,21 @@ void sctp_assoc_rm_peer(struct sctp_association *asoc,
if (asoc->init_last_sent_to == peer)
asoc->init_last_sent_to = NULL;
+ /* If we remove the transport an SHUTDOWN was last sent to, set it
+ * to NULL. Combined with the update of the retran path above, this
+ * will cause the next SHUTDOWN to be sent to the next available
+ * transport, maintaining the cycle.
+ */
+ if (asoc->shutdown_last_sent_to == peer)
+ asoc->shutdown_last_sent_to = NULL;
+
+ /* If we remove the transport an ASCONF was last sent to, set it to
+ * NULL.
+ */
+ if (asoc->addip_last_asconf &&
+ asoc->addip_last_asconf->transport == peer)
+ asoc->addip_last_asconf->transport = NULL;
+
asoc->peer.transport_count--;
sctp_transport_free(peer);
@@ -1268,49 +1284,21 @@ void sctp_assoc_update_retran_path(struct sctp_association *asoc)
ntohs(t->ipaddr.v4.sin_port));
}
-/* Choose the transport for sending a INIT packet. */
-struct sctp_transport *sctp_assoc_choose_init_transport(
- struct sctp_association *asoc)
-{
- struct sctp_transport *t;
-
- /* Use the retran path. If the last INIT was sent over the
- * retran path, update the retran path and use it.
- */
- if (!asoc->init_last_sent_to) {
- t = asoc->peer.active_path;
- } else {
- if (asoc->init_last_sent_to == asoc->peer.retran_path)
- sctp_assoc_update_retran_path(asoc);
- t = asoc->peer.retran_path;
- }
-
- SCTP_DEBUG_PRINTK_IPADDR("sctp_assoc_update_retran_path:association"
- " %p addr: ",
- " port: %d\n",
- asoc,
- (&t->ipaddr),
- ntohs(t->ipaddr.v4.sin_port));
-
- return t;
-}
-
-/* Choose the transport for sending a SHUTDOWN packet. */
-struct sctp_transport *sctp_assoc_choose_shutdown_transport(
- struct sctp_association *asoc)
+/* Choose the transport for sending retransmit packet. */
+struct sctp_transport *sctp_assoc_choose_alter_transport(
+ struct sctp_association *asoc, struct sctp_transport *last_sent_to)
{
- /* If this is the first time SHUTDOWN is sent, use the active path,
- * else use the retran path. If the last SHUTDOWN was sent over the
+ /* If this is the first time packet is sent, use the active path,
+ * else use the retran path. If the last packet was sent over the
* retran path, update the retran path and use it.
*/
- if (!asoc->shutdown_last_sent_to)
+ if (!last_sent_to)
return asoc->peer.active_path;
else {
- if (asoc->shutdown_last_sent_to == asoc->peer.retran_path)
+ if (last_sent_to == asoc->peer.retran_path)
sctp_assoc_update_retran_path(asoc);
return asoc->peer.retran_path;
}
-
}
/* Update the association's pmtu and frag_point by going through all the
@@ -1482,6 +1470,10 @@ int sctp_assoc_set_id(struct sctp_association *asoc, gfp_t gfp)
{
int assoc_id;
int error = 0;
+
+ /* If the id is already assigned, keep it. */
+ if (asoc->assoc_id)
+ return error;
retry:
if (unlikely(!idr_pre_get(&sctp_assocs_id, gfp)))
return -ENOMEM;
diff --git a/net/sctp/input.c b/net/sctp/input.c
index d2e98803ffe..c0c973e67ad 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -81,13 +81,13 @@ static void sctp_add_backlog(struct sock *sk, struct sk_buff *skb);
/* Calculate the SCTP checksum of an SCTP packet. */
static inline int sctp_rcv_checksum(struct sk_buff *skb)
{
- struct sk_buff *list = skb_shinfo(skb)->frag_list;
struct sctphdr *sh = sctp_hdr(skb);
__le32 cmp = sh->checksum;
+ struct sk_buff *list;
__le32 val;
__u32 tmp = sctp_start_cksum((__u8 *)sh, skb_headlen(skb));
- for (; list; list = list->next)
+ skb_walk_frags(skb, list)
tmp = sctp_update_cksum((__u8 *)list->data, skb_headlen(list),
tmp);
diff --git a/net/sctp/output.c b/net/sctp/output.c
index f0c91df59d4..b7641144451 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -405,10 +405,10 @@ int sctp_packet_transmit(struct sctp_packet *packet)
sctp_assoc_sync_pmtu(asoc);
}
}
- nskb->dst = dst_clone(tp->dst);
- if (!nskb->dst)
+ dst = dst_clone(tp->dst);
+ skb_dst_set(nskb, dst);
+ if (dst)
goto no_route;
- dst = nskb->dst;
/* Build the SCTP header. */
sh = (struct sctphdr *)skb_push(nskb, sizeof(struct sctphdr));
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 8eb3e61cb70..79cbd47f4df 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -393,7 +393,7 @@ static int sctp_v4_addr_valid(union sctp_addr *addr,
return 0;
/* Is this a broadcast address? */
- if (skb && skb->rtable->rt_flags & RTCF_BROADCAST)
+ if (skb && skb_rtable(skb)->rt_flags & RTCF_BROADCAST)
return 0;
return 1;
@@ -572,7 +572,7 @@ static void sctp_v4_get_saddr(struct sctp_sock *sk,
/* What interface did this skb arrive on? */
static int sctp_v4_skb_iif(const struct sk_buff *skb)
{
- return skb->rtable->rt_iif;
+ return skb_rtable(skb)->rt_iif;
}
/* Was this packet marked by Explicit Congestion Notification? */
@@ -848,8 +848,8 @@ static inline int sctp_v4_xmit(struct sk_buff *skb,
SCTP_DEBUG_PRINTK("%s: skb:%p, len:%d, src:%pI4, dst:%pI4\n",
__func__, skb, skb->len,
- &skb->rtable->rt_src,
- &skb->rtable->rt_dst);
+ &skb_rtable(skb)->rt_src,
+ &skb_rtable(skb)->rt_dst);
inet->pmtudisc = transport->param_flags & SPP_PMTUD_ENABLE ?
IP_PMTUDISC_DO : IP_PMTUDISC_DONT;
@@ -1370,6 +1370,8 @@ SCTP_STATIC __exit void sctp_exit(void)
sctp_proc_exit();
cleanup_sctp_mibs();
+ rcu_barrier(); /* Wait for completion of call_rcu()'s */
+
kmem_cache_destroy(sctp_chunk_cachep);
kmem_cache_destroy(sctp_bucket_cachep);
}
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 6851ee94e97..61cc6075b0d 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -2864,19 +2864,19 @@ static __be16 sctp_process_asconf_param(struct sctp_association *asoc,
switch (addr_param->v4.param_hdr.type) {
case SCTP_PARAM_IPV6_ADDRESS:
if (!asoc->peer.ipv6_address)
- return SCTP_ERROR_INV_PARAM;
+ return SCTP_ERROR_DNS_FAILED;
break;
case SCTP_PARAM_IPV4_ADDRESS:
if (!asoc->peer.ipv4_address)
- return SCTP_ERROR_INV_PARAM;
+ return SCTP_ERROR_DNS_FAILED;
break;
default:
- return SCTP_ERROR_INV_PARAM;
+ return SCTP_ERROR_DNS_FAILED;
}
af = sctp_get_af_specific(param_type2af(addr_param->v4.param_hdr.type));
if (unlikely(!af))
- return SCTP_ERROR_INV_PARAM;
+ return SCTP_ERROR_DNS_FAILED;
af->from_addr_param(&addr, addr_param, htons(asoc->peer.port), 0);
@@ -2886,7 +2886,7 @@ static __be16 sctp_process_asconf_param(struct sctp_association *asoc,
* make sure we check for that)
*/
if (!af->is_any(&addr) && !af->addr_valid(&addr, NULL, asconf->skb))
- return SCTP_ERROR_INV_PARAM;
+ return SCTP_ERROR_DNS_FAILED;
switch (asconf_param->param_hdr.type) {
case SCTP_PARAM_ADD_IP:
@@ -2954,12 +2954,12 @@ static __be16 sctp_process_asconf_param(struct sctp_association *asoc,
peer = sctp_assoc_lookup_paddr(asoc, &addr);
if (!peer)
- return SCTP_ERROR_INV_PARAM;
+ return SCTP_ERROR_DNS_FAILED;
sctp_assoc_set_primary(asoc, peer);
break;
default:
- return SCTP_ERROR_INV_PARAM;
+ return SCTP_ERROR_UNKNOWN_PARAM;
break;
}
@@ -3273,7 +3273,7 @@ int sctp_process_asconf_ack(struct sctp_association *asoc,
retval = 1;
break;
- case SCTP_ERROR_INV_PARAM:
+ case SCTP_ERROR_UNKNOWN_PARAM:
/* Disable sending this type of asconf parameter in
* future.
*/
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index e2020eb2c8c..86426aac160 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -686,7 +686,8 @@ static void sctp_cmd_setup_t2(sctp_cmd_seq_t *cmds,
{
struct sctp_transport *t;
- t = sctp_assoc_choose_shutdown_transport(asoc);
+ t = sctp_assoc_choose_alter_transport(asoc,
+ asoc->shutdown_last_sent_to);
asoc->shutdown_last_sent_to = t;
asoc->timeouts[SCTP_EVENT_TIMEOUT_T2_SHUTDOWN] = t->rto;
chunk->transport = t;
@@ -777,7 +778,7 @@ static void sctp_cmd_setup_t4(sctp_cmd_seq_t *cmds,
{
struct sctp_transport *t;
- t = asoc->peer.active_path;
+ t = sctp_assoc_choose_alter_transport(asoc, chunk->transport);
asoc->timeouts[SCTP_EVENT_TIMEOUT_T4_RTO] = t->rto;
chunk->transport = t;
}
@@ -1379,7 +1380,8 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
case SCTP_CMD_INIT_CHOOSE_TRANSPORT:
chunk = cmd->obj.ptr;
- t = sctp_assoc_choose_init_transport(asoc);
+ t = sctp_assoc_choose_alter_transport(asoc,
+ asoc->init_last_sent_to);
asoc->init_last_sent_to = t;
chunk->transport = t;
t->init_sent_count++;
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index 55a61aa6966..7288192f7df 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -5432,9 +5432,13 @@ sctp_disposition_t sctp_sf_t2_timer_expire(const struct sctp_endpoint *ep,
if (!reply)
goto nomem;
- /* Do some failure management (Section 8.2). */
- sctp_add_cmd_sf(commands, SCTP_CMD_STRIKE,
- SCTP_TRANSPORT(asoc->shutdown_last_sent_to));
+ /* Do some failure management (Section 8.2).
+ * If we remove the transport an SHUTDOWN was last sent to, don't
+ * do failure management.
+ */
+ if (asoc->shutdown_last_sent_to)
+ sctp_add_cmd_sf(commands, SCTP_CMD_STRIKE,
+ SCTP_TRANSPORT(asoc->shutdown_last_sent_to));
/* Set the transport for the SHUTDOWN/ACK chunk and the timeout for
* the T2-shutdown timer.
@@ -5471,7 +5475,9 @@ sctp_disposition_t sctp_sf_t4_timer_expire(
* detection on the appropriate destination address as defined in
* RFC2960 [5] section 8.1 and 8.2.
*/
- sctp_add_cmd_sf(commands, SCTP_CMD_STRIKE, SCTP_TRANSPORT(transport));
+ if (transport)
+ sctp_add_cmd_sf(commands, SCTP_CMD_STRIKE,
+ SCTP_TRANSPORT(transport));
/* Reconfig T4 timer and transport. */
sctp_add_cmd_sf(commands, SCTP_CMD_SETUP_T4, SCTP_CHUNK(chunk));
diff --git a/net/sctp/sm_statetable.c b/net/sctp/sm_statetable.c
index 5c8186d88c6..6d9b3aafcc5 100644
--- a/net/sctp/sm_statetable.c
+++ b/net/sctp/sm_statetable.c
@@ -698,7 +698,7 @@ chunk_event_table_unknown[SCTP_STATE_NUM_STATES] = {
TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
-} /* TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT */
+} /* TYPE_SCTP_PRIMITIVE_ASCONF */
/* The primary index for this table is the primitive type.
* The secondary index for this table is the state.
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 5fb3a8c9792..0f01e5d8a24 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -1100,6 +1100,15 @@ static int __sctp_connect(struct sock* sk,
goto out_free;
}
+ /* In case the user of sctp_connectx() wants an association
+ * id back, assign one now.
+ */
+ if (assoc_id) {
+ err = sctp_assoc_set_id(asoc, GFP_KERNEL);
+ if (err < 0)
+ goto out_free;
+ }
+
err = sctp_primitive_ASSOCIATE(asoc, NULL);
if (err < 0) {
goto out_free;
@@ -1120,7 +1129,7 @@ static int __sctp_connect(struct sock* sk,
timeo = sock_sndtimeo(sk, f_flags & O_NONBLOCK);
err = sctp_wait_for_connect(asoc, &timeo);
- if (!err && assoc_id)
+ if ((err == 0 || err == -EINPROGRESS) && assoc_id)
*assoc_id = asoc->assoc_id;
/* Don't free association on exit. */
@@ -1264,6 +1273,34 @@ SCTP_STATIC int sctp_setsockopt_connectx(struct sock* sk,
return assoc_id;
}
+/*
+ * New (hopefully final) interface for the API. The option buffer is used
+ * both for the returned association id and the addresses.
+ */
+SCTP_STATIC int sctp_getsockopt_connectx3(struct sock* sk, int len,
+ char __user *optval,
+ int __user *optlen)
+{
+ sctp_assoc_t assoc_id = 0;
+ int err = 0;
+
+ if (len < sizeof(assoc_id))
+ return -EINVAL;
+
+ err = __sctp_setsockopt_connectx(sk,
+ (struct sockaddr __user *)(optval + sizeof(assoc_id)),
+ len - sizeof(assoc_id), &assoc_id);
+
+ if (err == 0 || err == -EINPROGRESS) {
+ if (copy_to_user(optval, &assoc_id, sizeof(assoc_id)))
+ return -EFAULT;
+ if (put_user(sizeof(assoc_id), optlen))
+ return -EFAULT;
+ }
+
+ return err;
+}
+
/* API 3.1.4 close() - UDP Style Syntax
* Applications use close() to perform graceful shutdown (as described in
* Section 10.1 of [SCTP]) on ALL the associations currently represented
@@ -1844,7 +1881,7 @@ static int sctp_skb_pull(struct sk_buff *skb, int len)
len -= skb_len;
__skb_pull(skb, skb_len);
- for (list = skb_shinfo(skb)->frag_list; list; list = list->next) {
+ skb_walk_frags(skb, list) {
rlen = sctp_skb_pull(list, len);
skb->len -= (len-rlen);
skb->data_len -= (len-rlen);
@@ -5578,6 +5615,9 @@ SCTP_STATIC int sctp_getsockopt(struct sock *sk, int level, int optname,
retval = sctp_getsockopt_local_addrs(sk, len, optval,
optlen);
break;
+ case SCTP_SOCKOPT_CONNECTX3:
+ retval = sctp_getsockopt_connectx3(sk, len, optval, optlen);
+ break;
case SCTP_DEFAULT_SEND_PARAM:
retval = sctp_getsockopt_default_send_param(sk, len,
optval, optlen);
@@ -6620,7 +6660,7 @@ static void sctp_sock_rfree_frag(struct sk_buff *skb)
goto done;
/* Don't forget the fragments. */
- for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next)
+ skb_walk_frags(skb, frag)
sctp_sock_rfree_frag(frag);
done:
@@ -6635,7 +6675,7 @@ static void sctp_skb_set_owner_r_frag(struct sk_buff *skb, struct sock *sk)
goto done;
/* Don't forget the fragments. */
- for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next)
+ skb_walk_frags(skb, frag)
sctp_skb_set_owner_r_frag(frag, sk);
done:
diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
index f58e994e685..63eabbc7129 100644
--- a/net/sctp/sysctl.c
+++ b/net/sctp/sysctl.c
@@ -49,8 +49,8 @@ static int zero = 0;
static int one = 1;
static int timer_max = 86400000; /* ms in one day */
static int int_max = INT_MAX;
-static long sack_timer_min = 1;
-static long sack_timer_max = 500;
+static int sack_timer_min = 1;
+static int sack_timer_max = 500;
extern int sysctl_sctp_mem[3];
extern int sysctl_sctp_rmem[3];
@@ -223,7 +223,7 @@ static ctl_table sctp_table[] = {
.ctl_name = NET_SCTP_SACK_TIMEOUT,
.procname = "sack_timeout",
.data = &sctp_sack_timeout,
- .maxlen = sizeof(long),
+ .maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.strategy = sysctl_intvec,
diff --git a/net/sctp/ulpevent.c b/net/sctp/ulpevent.c
index 5f186ca550d..8b3560fd876 100644
--- a/net/sctp/ulpevent.c
+++ b/net/sctp/ulpevent.c
@@ -976,9 +976,8 @@ static void sctp_ulpevent_receive_data(struct sctp_ulpevent *event,
* In general, the skb passed from IP can have only 1 level of
* fragments. But we allow multiple levels of fragments.
*/
- for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next) {
+ skb_walk_frags(skb, frag)
sctp_ulpevent_receive_data(sctp_skb2event(frag), asoc);
- }
}
/* Do accounting for bytes just read by user and release the references to
@@ -1003,7 +1002,7 @@ static void sctp_ulpevent_release_data(struct sctp_ulpevent *event)
goto done;
/* Don't forget the fragments. */
- for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next) {
+ skb_walk_frags(skb, frag) {
/* NOTE: skb_shinfos are recursive. Although IP returns
* skb's with only 1 level of fragments, SCTP reassembly can
* increase the levels.
@@ -1026,7 +1025,7 @@ static void sctp_ulpevent_release_frag_data(struct sctp_ulpevent *event)
goto done;
/* Don't forget the fragments. */
- for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next) {
+ skb_walk_frags(skb, frag) {
/* NOTE: skb_shinfos are recursive. Although IP returns
* skb's with only 1 level of fragments, SCTP reassembly can
* increase the levels.
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index e630b38a604..66d458fc692 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -1548,6 +1548,7 @@ static void __exit exit_rpcsec_gss(void)
{
gss_svc_shutdown();
rpcauth_unregister(&authgss_ops);
+ rcu_barrier(); /* Wait for completion of call_rcu()'s */
}
MODULE_LICENSE("GPL");
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index e1859614601..6c2d6158655 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -918,7 +918,7 @@ static void xs_udp_data_ready(struct sock *sk, int len)
UDPX_INC_STATS_BH(sk, UDP_MIB_INDATAGRAMS);
/* Something worked... */
- dst_confirm(skb->dst);
+ dst_confirm(skb_dst(skb));
xprt_adjust_cwnd(task, copied);
xprt_update_rtt(task);
diff --git a/net/wimax/Kconfig b/net/wimax/Kconfig
index 1b46747a5f5..e4d97ab476d 100644
--- a/net/wimax/Kconfig
+++ b/net/wimax/Kconfig
@@ -1,23 +1,10 @@
#
# WiMAX LAN device configuration
#
-# Note the ugly 'depends on' on WIMAX: that disallows RFKILL to be a
-# module if WIMAX is to be linked in. The WiMAX code is done in such a
-# way that it doesn't require and explicit dependency on RFKILL in
-# case an embedded system wants to rip it out.
-#
-# As well, enablement of the RFKILL code means we need the INPUT layer
-# support to inject events coming from hw rfkill switches. That
-# dependency could be killed if input.h provided appropriate means to
-# work when input is disabled.
-
-comment "WiMAX Wireless Broadband support requires CONFIG_INPUT enabled"
- depends on INPUT = n && RFKILL != n
menuconfig WIMAX
tristate "WiMAX Wireless Broadband support"
- depends on (y && RFKILL != m) || m
- depends on (INPUT && RFKILL != n) || RFKILL = n
+ depends on RFKILL || !RFKILL
help
Select to configure support for devices that provide
diff --git a/net/wimax/Makefile b/net/wimax/Makefile
index 5b80b941c2c..8f1510d0cc2 100644
--- a/net/wimax/Makefile
+++ b/net/wimax/Makefile
@@ -6,6 +6,7 @@ wimax-y := \
op-msg.o \
op-reset.o \
op-rfkill.o \
+ op-state-get.o \
stack.o
wimax-$(CONFIG_DEBUG_FS) += debugfs.o
diff --git a/net/wimax/debug-levels.h b/net/wimax/debug-levels.h
index 1c29123a3aa..0975adba6b7 100644
--- a/net/wimax/debug-levels.h
+++ b/net/wimax/debug-levels.h
@@ -36,6 +36,7 @@ enum d_module {
D_SUBMODULE_DECLARE(op_msg),
D_SUBMODULE_DECLARE(op_reset),
D_SUBMODULE_DECLARE(op_rfkill),
+ D_SUBMODULE_DECLARE(op_state_get),
D_SUBMODULE_DECLARE(stack),
};
diff --git a/net/wimax/debugfs.c b/net/wimax/debugfs.c
index 94d216a4640..6c9bedb7431 100644
--- a/net/wimax/debugfs.c
+++ b/net/wimax/debugfs.c
@@ -61,6 +61,7 @@ int wimax_debugfs_add(struct wimax_dev *wimax_dev)
__debugfs_register("wimax_dl_", op_msg, dentry);
__debugfs_register("wimax_dl_", op_reset, dentry);
__debugfs_register("wimax_dl_", op_rfkill, dentry);
+ __debugfs_register("wimax_dl_", op_state_get, dentry);
__debugfs_register("wimax_dl_", stack, dentry);
result = 0;
out:
diff --git a/net/wimax/op-msg.c b/net/wimax/op-msg.c
index 9ad4d893a56..d631a17186b 100644
--- a/net/wimax/op-msg.c
+++ b/net/wimax/op-msg.c
@@ -108,6 +108,12 @@
* Don't use skb_push()/skb_pull()/skb_reserve() on the skb, as
* wimax_msg_send() depends on skb->data being placed at the
* beginning of the user message.
+ *
+ * Unlike other WiMAX stack calls, this call can be used way early,
+ * even before wimax_dev_add() is called, as long as the
+ * wimax_dev->net_dev pointer is set to point to a proper
+ * net_dev. This is so that drivers can use it early in case they need
+ * to send stuff around or communicate with user space.
*/
struct sk_buff *wimax_msg_alloc(struct wimax_dev *wimax_dev,
const char *pipe_name,
@@ -115,7 +121,7 @@ struct sk_buff *wimax_msg_alloc(struct wimax_dev *wimax_dev,
gfp_t gfp_flags)
{
int result;
- struct device *dev = wimax_dev->net_dev->dev.parent;
+ struct device *dev = wimax_dev_to_dev(wimax_dev);
size_t msg_size;
void *genl_msg;
struct sk_buff *skb;
@@ -161,7 +167,6 @@ error_genlmsg_put:
error_new:
nlmsg_free(skb);
return ERR_PTR(result);
-
}
EXPORT_SYMBOL_GPL(wimax_msg_alloc);
@@ -256,10 +261,16 @@ EXPORT_SYMBOL_GPL(wimax_msg_len);
* Don't use skb_push()/skb_pull()/skb_reserve() on the skb, as
* wimax_msg_send() depends on skb->data being placed at the
* beginning of the user message.
+ *
+ * Unlike other WiMAX stack calls, this call can be used way early,
+ * even before wimax_dev_add() is called, as long as the
+ * wimax_dev->net_dev pointer is set to point to a proper
+ * net_dev. This is so that drivers can use it early in case they need
+ * to send stuff around or communicate with user space.
*/
int wimax_msg_send(struct wimax_dev *wimax_dev, struct sk_buff *skb)
{
- struct device *dev = wimax_dev->net_dev->dev.parent;
+ struct device *dev = wimax_dev_to_dev(wimax_dev);
void *msg = skb->data;
size_t size = skb->len;
might_sleep();
diff --git a/net/wimax/op-rfkill.c b/net/wimax/op-rfkill.c
index a3616e2ccb8..bb102e4aa3e 100644
--- a/net/wimax/op-rfkill.c
+++ b/net/wimax/op-rfkill.c
@@ -29,8 +29,8 @@
* A non-polled generic rfkill device is embedded into the WiMAX
* subsystem's representation of a device.
*
- * FIXME: Need polled support? use a timer or add the implementation
- * to the stack.
+ * FIXME: Need polled support? Let drivers provide a poll routine
+ * and hand it to rfkill ops then?
*
* All device drivers have to do is after wimax_dev_init(), call
* wimax_report_rfkill_hw() and wimax_report_rfkill_sw() to update
@@ -43,7 +43,7 @@
* wimax_rfkill() Kernel calling wimax_rfkill()
* __wimax_rf_toggle_radio()
*
- * wimax_rfkill_toggle_radio() RF-Kill subsytem calling
+ * wimax_rfkill_set_radio_block() RF-Kill subsytem calling
* __wimax_rf_toggle_radio()
*
* __wimax_rf_toggle_radio()
@@ -65,15 +65,11 @@
#include <linux/wimax.h>
#include <linux/security.h>
#include <linux/rfkill.h>
-#include <linux/input.h>
#include "wimax-internal.h"
#define D_SUBMODULE op_rfkill
#include "debug-levels.h"
-#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
-
-
/**
* wimax_report_rfkill_hw - Reports changes in the hardware RF switch
*
@@ -99,7 +95,6 @@ void wimax_report_rfkill_hw(struct wimax_dev *wimax_dev,
int result;
struct device *dev = wimax_dev_to_dev(wimax_dev);
enum wimax_st wimax_state;
- enum rfkill_state rfkill_state;
d_fnstart(3, dev, "(wimax_dev %p state %u)\n", wimax_dev, state);
BUG_ON(state == WIMAX_RF_QUERY);
@@ -112,16 +107,15 @@ void wimax_report_rfkill_hw(struct wimax_dev *wimax_dev,
if (state != wimax_dev->rf_hw) {
wimax_dev->rf_hw = state;
- rfkill_state = state == WIMAX_RF_ON ?
- RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED;
if (wimax_dev->rf_hw == WIMAX_RF_ON
&& wimax_dev->rf_sw == WIMAX_RF_ON)
wimax_state = WIMAX_ST_READY;
else
wimax_state = WIMAX_ST_RADIO_OFF;
+
+ rfkill_set_hw_state(wimax_dev->rfkill, state == WIMAX_RF_OFF);
+
__wimax_state_change(wimax_dev, wimax_state);
- input_report_key(wimax_dev->rfkill_input, KEY_WIMAX,
- rfkill_state);
}
error_not_ready:
mutex_unlock(&wimax_dev->mutex);
@@ -174,6 +168,7 @@ void wimax_report_rfkill_sw(struct wimax_dev *wimax_dev,
else
wimax_state = WIMAX_ST_RADIO_OFF;
__wimax_state_change(wimax_dev, wimax_state);
+ rfkill_set_sw_state(wimax_dev->rfkill, state == WIMAX_RF_OFF);
}
error_not_ready:
mutex_unlock(&wimax_dev->mutex);
@@ -249,36 +244,31 @@ out_no_change:
*
* NOTE: This call will block until the operation is completed.
*/
-static
-int wimax_rfkill_toggle_radio(void *data, enum rfkill_state state)
+static int wimax_rfkill_set_radio_block(void *data, bool blocked)
{
int result;
struct wimax_dev *wimax_dev = data;
struct device *dev = wimax_dev_to_dev(wimax_dev);
enum wimax_rf_state rf_state;
- d_fnstart(3, dev, "(wimax_dev %p state %u)\n", wimax_dev, state);
- switch (state) {
- case RFKILL_STATE_SOFT_BLOCKED:
+ d_fnstart(3, dev, "(wimax_dev %p blocked %u)\n", wimax_dev, blocked);
+ rf_state = WIMAX_RF_ON;
+ if (blocked)
rf_state = WIMAX_RF_OFF;
- break;
- case RFKILL_STATE_UNBLOCKED:
- rf_state = WIMAX_RF_ON;
- break;
- default:
- BUG();
- }
mutex_lock(&wimax_dev->mutex);
if (wimax_dev->state <= __WIMAX_ST_QUIESCING)
- result = 0; /* just pretend it didn't happen */
+ result = 0;
else
result = __wimax_rf_toggle_radio(wimax_dev, rf_state);
mutex_unlock(&wimax_dev->mutex);
- d_fnend(3, dev, "(wimax_dev %p state %u) = %d\n",
- wimax_dev, state, result);
+ d_fnend(3, dev, "(wimax_dev %p blocked %u) = %d\n",
+ wimax_dev, blocked, result);
return result;
}
+static const struct rfkill_ops wimax_rfkill_ops = {
+ .set_block = wimax_rfkill_set_radio_block,
+};
/**
* wimax_rfkill - Set the software RF switch state for a WiMAX device
@@ -322,6 +312,7 @@ int wimax_rfkill(struct wimax_dev *wimax_dev, enum wimax_rf_state state)
result = __wimax_rf_toggle_radio(wimax_dev, state);
if (result < 0)
goto error;
+ rfkill_set_sw_state(wimax_dev->rfkill, state == WIMAX_RF_OFF);
break;
case WIMAX_RF_QUERY:
break;
@@ -349,40 +340,20 @@ int wimax_rfkill_add(struct wimax_dev *wimax_dev)
{
int result;
struct rfkill *rfkill;
- struct input_dev *input_dev;
struct device *dev = wimax_dev_to_dev(wimax_dev);
d_fnstart(3, dev, "(wimax_dev %p)\n", wimax_dev);
/* Initialize RF Kill */
result = -ENOMEM;
- rfkill = rfkill_allocate(dev, RFKILL_TYPE_WIMAX);
+ rfkill = rfkill_alloc(wimax_dev->name, dev, RFKILL_TYPE_WIMAX,
+ &wimax_rfkill_ops, wimax_dev);
if (rfkill == NULL)
goto error_rfkill_allocate;
+
+ d_printf(1, dev, "rfkill %p\n", rfkill);
+
wimax_dev->rfkill = rfkill;
- rfkill->name = wimax_dev->name;
- rfkill->state = RFKILL_STATE_UNBLOCKED;
- rfkill->data = wimax_dev;
- rfkill->toggle_radio = wimax_rfkill_toggle_radio;
-
- /* Initialize the input device for the hw key */
- input_dev = input_allocate_device();
- if (input_dev == NULL)
- goto error_input_allocate;
- wimax_dev->rfkill_input = input_dev;
- d_printf(1, dev, "rfkill %p input %p\n", rfkill, input_dev);
-
- input_dev->name = wimax_dev->name;
- /* FIXME: get a real device bus ID and stuff? do we care? */
- input_dev->id.bustype = BUS_HOST;
- input_dev->id.vendor = 0xffff;
- input_dev->evbit[0] = BIT(EV_KEY);
- set_bit(KEY_WIMAX, input_dev->keybit);
-
- /* Register both */
- result = input_register_device(wimax_dev->rfkill_input);
- if (result < 0)
- goto error_input_register;
result = rfkill_register(wimax_dev->rfkill);
if (result < 0)
goto error_rfkill_register;
@@ -394,17 +365,8 @@ int wimax_rfkill_add(struct wimax_dev *wimax_dev)
d_fnend(3, dev, "(wimax_dev %p) = 0\n", wimax_dev);
return 0;
- /* if rfkill_register() suceeds, can't use rfkill_free() any
- * more, only rfkill_unregister() [it owns the refcount]; with
- * the input device we have the same issue--hence the if. */
error_rfkill_register:
- input_unregister_device(wimax_dev->rfkill_input);
- wimax_dev->rfkill_input = NULL;
-error_input_register:
- if (wimax_dev->rfkill_input)
- input_free_device(wimax_dev->rfkill_input);
-error_input_allocate:
- rfkill_free(wimax_dev->rfkill);
+ rfkill_destroy(wimax_dev->rfkill);
error_rfkill_allocate:
d_fnend(3, dev, "(wimax_dev %p) = %d\n", wimax_dev, result);
return result;
@@ -423,45 +385,12 @@ void wimax_rfkill_rm(struct wimax_dev *wimax_dev)
{
struct device *dev = wimax_dev_to_dev(wimax_dev);
d_fnstart(3, dev, "(wimax_dev %p)\n", wimax_dev);
- rfkill_unregister(wimax_dev->rfkill); /* frees */
- input_unregister_device(wimax_dev->rfkill_input);
+ rfkill_unregister(wimax_dev->rfkill);
+ rfkill_destroy(wimax_dev->rfkill);
d_fnend(3, dev, "(wimax_dev %p)\n", wimax_dev);
}
-#else /* #ifdef CONFIG_RFKILL */
-
-void wimax_report_rfkill_hw(struct wimax_dev *wimax_dev,
- enum wimax_rf_state state)
-{
-}
-EXPORT_SYMBOL_GPL(wimax_report_rfkill_hw);
-
-void wimax_report_rfkill_sw(struct wimax_dev *wimax_dev,
- enum wimax_rf_state state)
-{
-}
-EXPORT_SYMBOL_GPL(wimax_report_rfkill_sw);
-
-int wimax_rfkill(struct wimax_dev *wimax_dev,
- enum wimax_rf_state state)
-{
- return WIMAX_RF_ON << 1 | WIMAX_RF_ON;
-}
-EXPORT_SYMBOL_GPL(wimax_rfkill);
-
-int wimax_rfkill_add(struct wimax_dev *wimax_dev)
-{
- return 0;
-}
-
-void wimax_rfkill_rm(struct wimax_dev *wimax_dev)
-{
-}
-
-#endif /* #ifdef CONFIG_RFKILL */
-
-
/*
* Exporting to user space over generic netlink
*
diff --git a/net/wimax/op-state-get.c b/net/wimax/op-state-get.c
new file mode 100644
index 00000000000..a76b8fcb056
--- /dev/null
+++ b/net/wimax/op-state-get.c
@@ -0,0 +1,86 @@
+/*
+ * Linux WiMAX
+ * Implement and export a method for getting a WiMAX device current state
+ *
+ * Copyright (C) 2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
+ *
+ * Based on previous WiMAX core work by:
+ * Copyright (C) 2008 Intel Corporation <linux-wimax@intel.com>
+ * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#include <net/wimax.h>
+#include <net/genetlink.h>
+#include <linux/wimax.h>
+#include <linux/security.h>
+#include "wimax-internal.h"
+
+#define D_SUBMODULE op_state_get
+#include "debug-levels.h"
+
+
+static const
+struct nla_policy wimax_gnl_state_get_policy[WIMAX_GNL_ATTR_MAX + 1] = {
+ [WIMAX_GNL_STGET_IFIDX] = {
+ .type = NLA_U32,
+ },
+};
+
+
+/*
+ * Exporting to user space over generic netlink
+ *
+ * Parse the state get command from user space, return a combination
+ * value that describe the current state.
+ *
+ * No attributes.
+ */
+static
+int wimax_gnl_doit_state_get(struct sk_buff *skb, struct genl_info *info)
+{
+ int result, ifindex;
+ struct wimax_dev *wimax_dev;
+ struct device *dev;
+
+ d_fnstart(3, NULL, "(skb %p info %p)\n", skb, info);
+ result = -ENODEV;
+ if (info->attrs[WIMAX_GNL_STGET_IFIDX] == NULL) {
+ printk(KERN_ERR "WIMAX_GNL_OP_STATE_GET: can't find IFIDX "
+ "attribute\n");
+ goto error_no_wimax_dev;
+ }
+ ifindex = nla_get_u32(info->attrs[WIMAX_GNL_STGET_IFIDX]);
+ wimax_dev = wimax_dev_get_by_genl_info(info, ifindex);
+ if (wimax_dev == NULL)
+ goto error_no_wimax_dev;
+ dev = wimax_dev_to_dev(wimax_dev);
+ /* Execute the operation and send the result back to user space */
+ result = wimax_state_get(wimax_dev);
+ dev_put(wimax_dev->net_dev);
+error_no_wimax_dev:
+ d_fnend(3, NULL, "(skb %p info %p) = %d\n", skb, info, result);
+ return result;
+}
+
+
+struct genl_ops wimax_gnl_state_get = {
+ .cmd = WIMAX_GNL_OP_STATE_GET,
+ .flags = GENL_ADMIN_PERM,
+ .policy = wimax_gnl_state_get_policy,
+ .doit = wimax_gnl_doit_state_get,
+ .dumpit = NULL,
+};
diff --git a/net/wimax/stack.c b/net/wimax/stack.c
index 933e1422b09..79fb7d7c640 100644
--- a/net/wimax/stack.c
+++ b/net/wimax/stack.c
@@ -402,13 +402,15 @@ EXPORT_SYMBOL_GPL(wimax_dev_init);
extern struct genl_ops
wimax_gnl_msg_from_user,
wimax_gnl_reset,
- wimax_gnl_rfkill;
+ wimax_gnl_rfkill,
+ wimax_gnl_state_get;
static
struct genl_ops *wimax_gnl_ops[] = {
&wimax_gnl_msg_from_user,
&wimax_gnl_reset,
&wimax_gnl_rfkill,
+ &wimax_gnl_state_get,
};
@@ -533,6 +535,7 @@ struct d_level D_LEVEL[] = {
D_SUBMODULE_DEFINE(op_msg),
D_SUBMODULE_DEFINE(op_reset),
D_SUBMODULE_DEFINE(op_rfkill),
+ D_SUBMODULE_DEFINE(op_state_get),
D_SUBMODULE_DEFINE(stack),
};
size_t D_LEVEL_SIZE = ARRAY_SIZE(D_LEVEL);
diff --git a/net/wireless/Kconfig b/net/wireless/Kconfig
index 45005497c63..4428dd5e911 100644
--- a/net/wireless/Kconfig
+++ b/net/wireless/Kconfig
@@ -1,5 +1,6 @@
config CFG80211
- tristate "Improved wireless configuration API"
+ tristate "Improved wireless configuration API"
+ depends on RFKILL || !RFKILL
config CFG80211_REG_DEBUG
bool "cfg80211 regulatory debugging"
diff --git a/net/wireless/core.c b/net/wireless/core.c
index a5dbea1da47..d5850292b3d 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -12,6 +12,7 @@
#include <linux/debugfs.h>
#include <linux/notifier.h>
#include <linux/device.h>
+#include <linux/rtnetlink.h>
#include <net/genetlink.h>
#include <net/cfg80211.h>
#include "nl80211.h"
@@ -227,6 +228,41 @@ int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
return 0;
}
+static void cfg80211_rfkill_poll(struct rfkill *rfkill, void *data)
+{
+ struct cfg80211_registered_device *drv = data;
+
+ drv->ops->rfkill_poll(&drv->wiphy);
+}
+
+static int cfg80211_rfkill_set_block(void *data, bool blocked)
+{
+ struct cfg80211_registered_device *drv = data;
+ struct wireless_dev *wdev;
+
+ if (!blocked)
+ return 0;
+
+ rtnl_lock();
+ mutex_lock(&drv->devlist_mtx);
+
+ list_for_each_entry(wdev, &drv->netdev_list, list)
+ dev_close(wdev->netdev);
+
+ mutex_unlock(&drv->devlist_mtx);
+ rtnl_unlock();
+
+ return 0;
+}
+
+static void cfg80211_rfkill_sync_work(struct work_struct *work)
+{
+ struct cfg80211_registered_device *drv;
+
+ drv = container_of(work, struct cfg80211_registered_device, rfkill_sync);
+ cfg80211_rfkill_set_block(drv, rfkill_blocked(drv->rfkill));
+}
+
/* exported functions */
struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv)
@@ -274,6 +310,18 @@ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv)
drv->wiphy.dev.class = &ieee80211_class;
drv->wiphy.dev.platform_data = drv;
+ drv->rfkill_ops.set_block = cfg80211_rfkill_set_block;
+ drv->rfkill = rfkill_alloc(dev_name(&drv->wiphy.dev),
+ &drv->wiphy.dev, RFKILL_TYPE_WLAN,
+ &drv->rfkill_ops, drv);
+
+ if (!drv->rfkill) {
+ kfree(drv);
+ return NULL;
+ }
+
+ INIT_WORK(&drv->rfkill_sync, cfg80211_rfkill_sync_work);
+
/*
* Initialize wiphy parameters to IEEE 802.11 MIB default values.
* Fragmentation and RTS threshold are disabled by default with the
@@ -347,17 +395,23 @@ int wiphy_register(struct wiphy *wiphy)
/* check and set up bitrates */
ieee80211_set_bitrate_flags(wiphy);
+ res = device_add(&drv->wiphy.dev);
+ if (res)
+ return res;
+
+ res = rfkill_register(drv->rfkill);
+ if (res)
+ goto out_rm_dev;
+
mutex_lock(&cfg80211_mutex);
/* set up regulatory info */
wiphy_update_regulatory(wiphy, NL80211_REGDOM_SET_BY_CORE);
- res = device_add(&drv->wiphy.dev);
- if (res)
- goto out_unlock;
-
list_add(&drv->list, &cfg80211_drv_list);
+ mutex_unlock(&cfg80211_mutex);
+
/* add to debugfs */
drv->wiphy.debugfsdir =
debugfs_create_dir(wiphy_name(&drv->wiphy),
@@ -378,17 +432,39 @@ int wiphy_register(struct wiphy *wiphy)
cfg80211_debugfs_drv_add(drv);
- res = 0;
-out_unlock:
- mutex_unlock(&cfg80211_mutex);
+ return 0;
+
+ out_rm_dev:
+ device_del(&drv->wiphy.dev);
return res;
}
EXPORT_SYMBOL(wiphy_register);
+void wiphy_rfkill_start_polling(struct wiphy *wiphy)
+{
+ struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
+
+ if (!drv->ops->rfkill_poll)
+ return;
+ drv->rfkill_ops.poll = cfg80211_rfkill_poll;
+ rfkill_resume_polling(drv->rfkill);
+}
+EXPORT_SYMBOL(wiphy_rfkill_start_polling);
+
+void wiphy_rfkill_stop_polling(struct wiphy *wiphy)
+{
+ struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
+
+ rfkill_pause_polling(drv->rfkill);
+}
+EXPORT_SYMBOL(wiphy_rfkill_stop_polling);
+
void wiphy_unregister(struct wiphy *wiphy)
{
struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
+ rfkill_unregister(drv->rfkill);
+
/* protect the device list */
mutex_lock(&cfg80211_mutex);
@@ -425,6 +501,7 @@ EXPORT_SYMBOL(wiphy_unregister);
void cfg80211_dev_free(struct cfg80211_registered_device *drv)
{
struct cfg80211_internal_bss *scan, *tmp;
+ rfkill_destroy(drv->rfkill);
mutex_destroy(&drv->mtx);
mutex_destroy(&drv->devlist_mtx);
list_for_each_entry_safe(scan, tmp, &drv->bss_list, list)
@@ -438,6 +515,15 @@ void wiphy_free(struct wiphy *wiphy)
}
EXPORT_SYMBOL(wiphy_free);
+void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked)
+{
+ struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
+
+ if (rfkill_set_hw_state(drv->rfkill, blocked))
+ schedule_work(&drv->rfkill_sync);
+}
+EXPORT_SYMBOL(wiphy_rfkill_set_hw_state);
+
static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
unsigned long state,
void *ndev)
@@ -446,7 +532,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
struct cfg80211_registered_device *rdev;
if (!dev->ieee80211_ptr)
- return 0;
+ return NOTIFY_DONE;
rdev = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
@@ -492,9 +578,13 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
}
mutex_unlock(&rdev->devlist_mtx);
break;
+ case NETDEV_PRE_UP:
+ if (rfkill_blocked(rdev->rfkill))
+ return notifier_from_errno(-ERFKILL);
+ break;
}
- return 0;
+ return NOTIFY_DONE;
}
static struct notifier_block cfg80211_netdev_notifier = {
diff --git a/net/wireless/core.h b/net/wireless/core.h
index ab512bcd815..bfa340c7abb 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -11,6 +11,8 @@
#include <linux/kref.h>
#include <linux/rbtree.h>
#include <linux/debugfs.h>
+#include <linux/rfkill.h>
+#include <linux/workqueue.h>
#include <net/genetlink.h>
#include <net/cfg80211.h>
#include "reg.h"
@@ -24,6 +26,11 @@ struct cfg80211_registered_device {
* any call is in progress */
struct mutex mtx;
+ /* rfkill support */
+ struct rfkill_ops rfkill_ops;
+ struct rfkill *rfkill;
+ struct work_struct rfkill_sync;
+
/* ISO / IEC 3166 alpha2 for which this device is receiving
* country IEs on, this can help disregard country IEs from APs
* on the same alpha2 quickly. The alpha2 may differ from
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 4b4d3c8a1ae..24168560eba 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1687,6 +1687,12 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
if (err)
goto out_rtnl;
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
+ dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN) {
+ err = -EINVAL;
+ goto out;
+ }
+
err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, &params.vlan);
if (err)
goto out;
@@ -1738,7 +1744,11 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
params.listen_interval =
nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
+
params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
+ if (!params.aid || params.aid > IEEE80211_MAX_AID)
+ return -EINVAL;
+
if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
params.ht_capa =
nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
@@ -3559,11 +3569,43 @@ void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL);
}
+static int nl80211_add_scan_req(struct sk_buff *msg,
+ struct cfg80211_registered_device *rdev)
+{
+ struct cfg80211_scan_request *req = rdev->scan_req;
+ struct nlattr *nest;
+ int i;
+
+ if (WARN_ON(!req))
+ return 0;
+
+ nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
+ if (!nest)
+ goto nla_put_failure;
+ for (i = 0; i < req->n_ssids; i++)
+ NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
+ nla_nest_end(msg, nest);
+
+ nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
+ if (!nest)
+ goto nla_put_failure;
+ for (i = 0; i < req->n_channels; i++)
+ NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
+ nla_nest_end(msg, nest);
+
+ if (req->ie)
+ NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
+
+ return 0;
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
static int nl80211_send_scan_donemsg(struct sk_buff *msg,
- struct cfg80211_registered_device *rdev,
- struct net_device *netdev,
- u32 pid, u32 seq, int flags,
- u32 cmd)
+ struct cfg80211_registered_device *rdev,
+ struct net_device *netdev,
+ u32 pid, u32 seq, int flags,
+ u32 cmd)
{
void *hdr;
@@ -3574,7 +3616,8 @@ static int nl80211_send_scan_donemsg(struct sk_buff *msg,
NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
- /* XXX: we should probably bounce back the request? */
+ /* ignore errors and send incomplete event anyway */
+ nl80211_add_scan_req(msg, rdev);
return genlmsg_end(msg, hdr);
@@ -3828,7 +3871,7 @@ void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
struct sk_buff *msg;
void *hdr;
- msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
if (!msg)
return;
@@ -3852,7 +3895,7 @@ void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
return;
}
- genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_KERNEL);
+ genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_ATOMIC);
return;
nla_put_failure:
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index f87ac1df2df..5e14371cda7 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -2129,7 +2129,12 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
* driver wanted to the wiphy to deal with conflicts
*/
- BUG_ON(request_wiphy->regd);
+ /*
+ * Userspace could have sent two replies with only
+ * one kernel request.
+ */
+ if (request_wiphy->regd)
+ return -EALREADY;
r = reg_copy_regd(&request_wiphy->regd, rd);
if (r)
@@ -2171,7 +2176,13 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
* the country IE rd with what CRDA believes that country should have
*/
- BUG_ON(!country_ie_regdomain);
+ /*
+ * Userspace could have sent two replies with only
+ * one kernel request. By the second reply we would have
+ * already processed and consumed the country_ie_regdomain.
+ */
+ if (!country_ie_regdomain)
+ return -EALREADY;
BUG_ON(rd == country_ie_regdomain);
/*
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index df59440290e..e95b638b919 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -29,13 +29,14 @@ void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted)
goto out;
WARN_ON(request != wiphy_to_dev(request->wiphy)->scan_req);
- wiphy_to_dev(request->wiphy)->scan_req = NULL;
if (aborted)
nl80211_send_scan_aborted(wiphy_to_dev(request->wiphy), dev);
else
nl80211_send_scan_done(wiphy_to_dev(request->wiphy), dev);
+ wiphy_to_dev(request->wiphy)->scan_req = NULL;
+
#ifdef CONFIG_WIRELESS_EXT
if (!aborted) {
memset(&wrqu, 0, sizeof(wrqu));
diff --git a/net/wireless/util.c b/net/wireless/util.c
index d072bff463a..25550692dda 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -157,26 +157,25 @@ int cfg80211_validate_key_settings(struct key_params *params, int key_idx,
params->cipher != WLAN_CIPHER_SUITE_WEP104)
return -EINVAL;
- /* TODO: add definitions for the lengths to linux/ieee80211.h */
switch (params->cipher) {
case WLAN_CIPHER_SUITE_WEP40:
- if (params->key_len != 5)
+ if (params->key_len != WLAN_KEY_LEN_WEP40)
return -EINVAL;
break;
case WLAN_CIPHER_SUITE_TKIP:
- if (params->key_len != 32)
+ if (params->key_len != WLAN_KEY_LEN_TKIP)
return -EINVAL;
break;
case WLAN_CIPHER_SUITE_CCMP:
- if (params->key_len != 16)
+ if (params->key_len != WLAN_KEY_LEN_CCMP)
return -EINVAL;
break;
case WLAN_CIPHER_SUITE_WEP104:
- if (params->key_len != 13)
+ if (params->key_len != WLAN_KEY_LEN_WEP104)
return -EINVAL;
break;
case WLAN_CIPHER_SUITE_AES_CMAC:
- if (params->key_len != 16)
+ if (params->key_len != WLAN_KEY_LEN_AES_CMAC)
return -EINVAL;
break;
default:
@@ -259,7 +258,7 @@ unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb)
}
EXPORT_SYMBOL(ieee80211_get_hdrlen_from_skb);
-int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
+static int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
{
int ae = meshhdr->flags & MESH_FLAGS_AE;
/* 7.1.3.5a.2 */
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index 711e00a0c9b..d030c531567 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -744,3 +744,86 @@ int cfg80211_wext_giwencode(struct net_device *dev,
return err;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwencode);
+
+int cfg80211_wext_siwtxpower(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *data, char *extra)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+ enum tx_power_setting type;
+ int dbm = 0;
+
+ if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
+ return -EINVAL;
+ if (data->txpower.flags & IW_TXPOW_RANGE)
+ return -EINVAL;
+
+ if (!rdev->ops->set_tx_power)
+ return -EOPNOTSUPP;
+
+ /* only change when not disabling */
+ if (!data->txpower.disabled) {
+ rfkill_set_sw_state(rdev->rfkill, false);
+
+ if (data->txpower.fixed) {
+ /*
+ * wext doesn't support negative values, see
+ * below where it's for automatic
+ */
+ if (data->txpower.value < 0)
+ return -EINVAL;
+ dbm = data->txpower.value;
+ type = TX_POWER_FIXED;
+ /* TODO: do regulatory check! */
+ } else {
+ /*
+ * Automatic power level setting, max being the value
+ * passed in from userland.
+ */
+ if (data->txpower.value < 0) {
+ type = TX_POWER_AUTOMATIC;
+ } else {
+ dbm = data->txpower.value;
+ type = TX_POWER_LIMITED;
+ }
+ }
+ } else {
+ rfkill_set_sw_state(rdev->rfkill, true);
+ schedule_work(&rdev->rfkill_sync);
+ return 0;
+ }
+
+ return rdev->ops->set_tx_power(wdev->wiphy, type, dbm);;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_siwtxpower);
+
+int cfg80211_wext_giwtxpower(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *data, char *extra)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+ int err, val;
+
+ if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
+ return -EINVAL;
+ if (data->txpower.flags & IW_TXPOW_RANGE)
+ return -EINVAL;
+
+ if (!rdev->ops->get_tx_power)
+ return -EOPNOTSUPP;
+
+ err = rdev->ops->get_tx_power(wdev->wiphy, &val);
+ if (err)
+ return err;
+
+ /* well... oh well */
+ data->txpower.fixed = 1;
+ data->txpower.disabled = rfkill_blocked(rdev->rfkill);
+ data->txpower.value = val;
+ data->txpower.flags = IW_TXPOW_DBM;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_giwtxpower);
diff --git a/net/xfrm/xfrm_algo.c b/net/xfrm/xfrm_algo.c
index 96036cf2216..d31ccb48773 100644
--- a/net/xfrm/xfrm_algo.c
+++ b/net/xfrm/xfrm_algo.c
@@ -696,8 +696,9 @@ int skb_icv_walk(const struct sk_buff *skb, struct hash_desc *desc,
{
int start = skb_headlen(skb);
int i, copy = start - offset;
- int err;
+ struct sk_buff *frag_iter;
struct scatterlist sg;
+ int err;
/* Checksum header. */
if (copy > 0) {
@@ -742,28 +743,24 @@ int skb_icv_walk(const struct sk_buff *skb, struct hash_desc *desc,
start = end;
}
- if (skb_shinfo(skb)->frag_list) {
- struct sk_buff *list = skb_shinfo(skb)->frag_list;
-
- for (; list; list = list->next) {
- int end;
-
- WARN_ON(start > offset + len);
-
- end = start + list->len;
- if ((copy = end - offset) > 0) {
- if (copy > len)
- copy = len;
- err = skb_icv_walk(list, desc, offset-start,
- copy, icv_update);
- if (unlikely(err))
- return err;
- if ((len -= copy) == 0)
- return 0;
- offset += copy;
- }
- start = end;
+ skb_walk_frags(skb, frag_iter) {
+ int end;
+
+ WARN_ON(start > offset + len);
+
+ end = start + frag_iter->len;
+ if ((copy = end - offset) > 0) {
+ if (copy > len)
+ copy = len;
+ err = skb_icv_walk(frag_iter, desc, offset-start,
+ copy, icv_update);
+ if (unlikely(err))
+ return err;
+ if ((len -= copy) == 0)
+ return 0;
+ offset += copy;
}
+ start = end;
}
BUG_ON(len);
return 0;
diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c
index b4a13178fb4..e0009c17d80 100644
--- a/net/xfrm/xfrm_input.c
+++ b/net/xfrm/xfrm_input.c
@@ -251,8 +251,7 @@ resume:
nf_reset(skb);
if (decaps) {
- dst_release(skb->dst);
- skb->dst = NULL;
+ skb_dst_drop(skb);
netif_rx(skb);
return 0;
} else {
diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c
index c235597ba8d..b9fe13138c0 100644
--- a/net/xfrm/xfrm_output.c
+++ b/net/xfrm/xfrm_output.c
@@ -22,7 +22,7 @@ static int xfrm_output2(struct sk_buff *skb);
static int xfrm_state_check_space(struct xfrm_state *x, struct sk_buff *skb)
{
- struct dst_entry *dst = skb->dst;
+ struct dst_entry *dst = skb_dst(skb);
int nhead = dst->header_len + LL_RESERVED_SPACE(dst->dev)
- skb_headroom(skb);
int ntail = dst->dev->needed_tailroom - skb_tailroom(skb);
@@ -39,7 +39,7 @@ static int xfrm_state_check_space(struct xfrm_state *x, struct sk_buff *skb)
static int xfrm_output_one(struct sk_buff *skb, int err)
{
- struct dst_entry *dst = skb->dst;
+ struct dst_entry *dst = skb_dst(skb);
struct xfrm_state *x = dst->xfrm;
struct net *net = xs_net(x);
@@ -94,12 +94,13 @@ resume:
goto error_nolock;
}
- if (!(skb->dst = dst_pop(dst))) {
+ dst = dst_pop(dst);
+ if (!dst) {
XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTERROR);
err = -EHOSTUNREACH;
goto error_nolock;
}
- dst = skb->dst;
+ skb_dst_set(skb, dst);
x = dst->xfrm;
} while (x && !(x->outer_mode->flags & XFRM_MODE_FLAG_TUNNEL));
@@ -119,16 +120,16 @@ int xfrm_output_resume(struct sk_buff *skb, int err)
while (likely((err = xfrm_output_one(skb, err)) == 0)) {
nf_reset(skb);
- err = skb->dst->ops->local_out(skb);
+ err = skb_dst(skb)->ops->local_out(skb);
if (unlikely(err != 1))
goto out;
- if (!skb->dst->xfrm)
+ if (!skb_dst(skb)->xfrm)
return dst_output(skb);
- err = nf_hook(skb->dst->ops->family,
+ err = nf_hook(skb_dst(skb)->ops->family,
NF_INET_POST_ROUTING, skb,
- NULL, skb->dst->dev, xfrm_output2);
+ NULL, skb_dst(skb)->dev, xfrm_output2);
if (unlikely(err != 1))
goto out;
}
@@ -179,7 +180,7 @@ static int xfrm_output_gso(struct sk_buff *skb)
int xfrm_output(struct sk_buff *skb)
{
- struct net *net = dev_net(skb->dst->dev);
+ struct net *net = dev_net(skb_dst(skb)->dev);
int err;
if (skb_is_gso(skb))
@@ -202,7 +203,7 @@ int xfrm_inner_extract_output(struct xfrm_state *x, struct sk_buff *skb)
struct xfrm_mode *inner_mode;
if (x->sel.family == AF_UNSPEC)
inner_mode = xfrm_ip2inner_mode(x,
- xfrm_af2proto(skb->dst->ops->family));
+ xfrm_af2proto(skb_dst(skb)->ops->family));
else
inner_mode = x->inner_mode;
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 9c068ab3a83..cb81ca35b0d 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -2027,6 +2027,8 @@ int __xfrm_route_forward(struct sk_buff *skb, unsigned short family)
{
struct net *net = dev_net(skb->dev);
struct flowi fl;
+ struct dst_entry *dst;
+ int res;
if (xfrm_decode_session(skb, &fl, family) < 0) {
/* XXX: we should have something like FWDHDRERROR here. */
@@ -2034,7 +2036,11 @@ int __xfrm_route_forward(struct sk_buff *skb, unsigned short family)
return 0;
}
- return xfrm_lookup(net, &skb->dst, &fl, NULL, 0) == 0;
+ dst = skb_dst(skb);
+
+ res = xfrm_lookup(net, &dst, &fl, NULL, 0) == 0;
+ skb_dst_set(skb, dst);
+ return res;
}
EXPORT_SYMBOL(__xfrm_route_forward);