diff options
Diffstat (limited to 'net')
53 files changed, 599 insertions, 259 deletions
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c index 6c132394026..e9db889d622 100644 --- a/net/8021q/vlan_core.c +++ b/net/8021q/vlan_core.c @@ -62,13 +62,13 @@ struct net_device *vlan_dev_real_dev(const struct net_device *dev) { return vlan_dev_info(dev)->real_dev; } -EXPORT_SYMBOL_GPL(vlan_dev_real_dev); +EXPORT_SYMBOL(vlan_dev_real_dev); u16 vlan_dev_vlan_id(const struct net_device *dev) { return vlan_dev_info(dev)->vlan_id; } -EXPORT_SYMBOL_GPL(vlan_dev_vlan_id); +EXPORT_SYMBOL(vlan_dev_vlan_id); static int vlan_gro_common(struct napi_struct *napi, struct vlan_group *grp, unsigned int vlan_tci, struct sk_buff *skb) diff --git a/net/9p/Kconfig b/net/9p/Kconfig index 0663f99e977..7ed75c7bd5d 100644 --- a/net/9p/Kconfig +++ b/net/9p/Kconfig @@ -23,7 +23,7 @@ config NET_9P_VIRTIO guest partitions and a host partition. config NET_9P_RDMA - depends on INET && INFINIBAND && EXPERIMENTAL + depends on INET && INFINIBAND && INFINIBAND_ADDR_TRANS && EXPERIMENTAL tristate "9P RDMA Transport (Experimental)" help This builds support for an RDMA transport. diff --git a/net/9p/client.c b/net/9p/client.c index 821f1ec0b2c..1eb580c38fb 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -618,7 +618,7 @@ static struct p9_fid *p9_fid_create(struct p9_client *clnt) return ERR_PTR(-ENOMEM); ret = p9_idpool_get(clnt->fidpool); - if (fid->fid < 0) { + if (ret < 0) { ret = -ENOSPC; goto error; } diff --git a/net/Kconfig b/net/Kconfig index bf2776018f7..cdb8fdef6c4 100644 --- a/net/Kconfig +++ b/net/Kconfig @@ -24,14 +24,6 @@ if NET menu "Networking options" -config NET_NS - bool "Network namespace support" - default n - depends on EXPERIMENTAL && NAMESPACES - help - Allow user space to create what appear to be multiple instances - of the network stack. - config COMPAT_NET_DEV_OPS def_bool y diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c index a65e43a17fb..cf754ace0b7 100644 --- a/net/bridge/br_netfilter.c +++ b/net/bridge/br_netfilter.c @@ -58,11 +58,11 @@ static struct ctl_table_header *brnf_sysctl_header; static int brnf_call_iptables __read_mostly = 1; static int brnf_call_ip6tables __read_mostly = 1; static int brnf_call_arptables __read_mostly = 1; -static int brnf_filter_vlan_tagged __read_mostly = 1; -static int brnf_filter_pppoe_tagged __read_mostly = 1; +static int brnf_filter_vlan_tagged __read_mostly = 0; +static int brnf_filter_pppoe_tagged __read_mostly = 0; #else -#define brnf_filter_vlan_tagged 1 -#define brnf_filter_pppoe_tagged 1 +#define brnf_filter_vlan_tagged 0 +#define brnf_filter_pppoe_tagged 0 #endif static inline __be16 vlan_proto(const struct sk_buff *skb) @@ -686,8 +686,11 @@ static unsigned int br_nf_forward_ip(unsigned int hook, struct sk_buff *skb, if (skb->protocol == htons(ETH_P_IP) || IS_VLAN_IP(skb) || IS_PPPOE_IP(skb)) pf = PF_INET; - else + else if (skb->protocol == htons(ETH_P_IPV6) || IS_VLAN_IPV6(skb) || + IS_PPPOE_IPV6(skb)) pf = PF_INET6; + else + return NF_ACCEPT; nf_bridge_pull_encap_header(skb); @@ -828,8 +831,11 @@ static unsigned int br_nf_post_routing(unsigned int hook, struct sk_buff *skb, if (skb->protocol == htons(ETH_P_IP) || IS_VLAN_IP(skb) || IS_PPPOE_IP(skb)) pf = PF_INET; - else + else if (skb->protocol == htons(ETH_P_IPV6) || IS_VLAN_IPV6(skb) || + IS_PPPOE_IPV6(skb)) pf = PF_INET6; + else + return NF_ACCEPT; #ifdef CONFIG_NETFILTER_DEBUG if (skb->dst == NULL) { diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c index fa108c46e85..820252aee81 100644 --- a/net/bridge/netfilter/ebtables.c +++ b/net/bridge/netfilter/ebtables.c @@ -79,18 +79,19 @@ static inline int ebt_do_match (struct ebt_entry_match *m, { par->match = m->u.match; par->matchinfo = m->data; - return m->u.match->match(skb, par); + return m->u.match->match(skb, par) ? EBT_MATCH : EBT_NOMATCH; } static inline int ebt_dev_check(char *entry, const struct net_device *device) { int i = 0; - const char *devname = device->name; + const char *devname; if (*entry == '\0') return 0; if (!device) return 1; + devname = device->name; /* 1 is the wildcard token */ while (entry[i] != '\0' && entry[i] != 1 && entry[i] == devname[i]) i++; diff --git a/net/can/bcm.c b/net/can/bcm.c index 1649c8ab2c2..b7c7d465113 100644 --- a/net/can/bcm.c +++ b/net/can/bcm.c @@ -347,51 +347,54 @@ static void bcm_tx_timeout_tsklet(unsigned long data) struct bcm_op *op = (struct bcm_op *)data; struct bcm_msg_head msg_head; - /* create notification to user */ - msg_head.opcode = TX_EXPIRED; - msg_head.flags = op->flags; - msg_head.count = op->count; - msg_head.ival1 = op->ival1; - msg_head.ival2 = op->ival2; - msg_head.can_id = op->can_id; - msg_head.nframes = 0; - - bcm_send_to_user(op, &msg_head, NULL, 0); -} - -/* - * bcm_tx_timeout_handler - performes cyclic CAN frame transmissions - */ -static enum hrtimer_restart bcm_tx_timeout_handler(struct hrtimer *hrtimer) -{ - struct bcm_op *op = container_of(hrtimer, struct bcm_op, timer); - enum hrtimer_restart ret = HRTIMER_NORESTART; - if (op->kt_ival1.tv64 && (op->count > 0)) { op->count--; - if (!op->count && (op->flags & TX_COUNTEVT)) - tasklet_schedule(&op->tsklet); + if (!op->count && (op->flags & TX_COUNTEVT)) { + + /* create notification to user */ + msg_head.opcode = TX_EXPIRED; + msg_head.flags = op->flags; + msg_head.count = op->count; + msg_head.ival1 = op->ival1; + msg_head.ival2 = op->ival2; + msg_head.can_id = op->can_id; + msg_head.nframes = 0; + + bcm_send_to_user(op, &msg_head, NULL, 0); + } } if (op->kt_ival1.tv64 && (op->count > 0)) { /* send (next) frame */ bcm_can_tx(op); - hrtimer_forward(hrtimer, ktime_get(), op->kt_ival1); - ret = HRTIMER_RESTART; + hrtimer_start(&op->timer, + ktime_add(ktime_get(), op->kt_ival1), + HRTIMER_MODE_ABS); } else { if (op->kt_ival2.tv64) { /* send (next) frame */ bcm_can_tx(op); - hrtimer_forward(hrtimer, ktime_get(), op->kt_ival2); - ret = HRTIMER_RESTART; + hrtimer_start(&op->timer, + ktime_add(ktime_get(), op->kt_ival2), + HRTIMER_MODE_ABS); } } +} - return ret; +/* + * bcm_tx_timeout_handler - performes cyclic CAN frame transmissions + */ +static enum hrtimer_restart bcm_tx_timeout_handler(struct hrtimer *hrtimer) +{ + struct bcm_op *op = container_of(hrtimer, struct bcm_op, timer); + + tasklet_schedule(&op->tsklet); + + return HRTIMER_NORESTART; } /* diff --git a/net/core/dev.c b/net/core/dev.c index 5f736f1ceea..5379b0c1190 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1088,6 +1088,11 @@ int dev_open(struct net_device *dev) dev->flags |= IFF_UP; /* + * Enable NET_DMA + */ + dmaengine_get(); + + /* * Initialize multicasting status */ dev_set_rx_mode(dev); @@ -1164,6 +1169,11 @@ int dev_close(struct net_device *dev) */ call_netdevice_notifiers(NETDEV_DOWN, dev); + /* + * Shutdown NET_DMA + */ + dmaengine_put(); + return 0; } @@ -1524,7 +1534,19 @@ struct sk_buff *skb_gso_segment(struct sk_buff *skb, int features) skb->mac_len = skb->network_header - skb->mac_header; __skb_pull(skb, skb->mac_len); - if (WARN_ON(skb->ip_summed != CHECKSUM_PARTIAL)) { + if (unlikely(skb->ip_summed != CHECKSUM_PARTIAL)) { + struct net_device *dev = skb->dev; + struct ethtool_drvinfo info = {}; + + if (dev && dev->ethtool_ops && dev->ethtool_ops->get_drvinfo) + dev->ethtool_ops->get_drvinfo(dev, &info); + + WARN(1, "%s: caps=(0x%lx, 0x%lx) len=%d data_len=%d " + "ip_summed=%d", + info.driver, dev ? dev->features : 0L, + skb->sk ? skb->sk->sk_route_caps : 0L, + skb->len, skb->data_len, skb->ip_summed); + if (skb_header_cloned(skb) && (err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC))) return ERR_PTR(err); @@ -2382,6 +2404,9 @@ 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) + goto normal; + rcu_read_lock(); list_for_each_entry_rcu(ptype, head, list) { struct sk_buff *p; @@ -2478,12 +2503,6 @@ EXPORT_SYMBOL(napi_gro_receive); void napi_reuse_skb(struct napi_struct *napi, struct sk_buff *skb) { - skb_shinfo(skb)->nr_frags = 0; - - skb->len -= skb->data_len; - skb->truesize -= skb->data_len; - skb->data_len = 0; - __skb_pull(skb, skb_headlen(skb)); skb_reserve(skb, NET_IP_ALIGN - skb_headroom(skb)); @@ -2517,6 +2536,7 @@ struct sk_buff *napi_fraginfo_skb(struct napi_struct *napi, if (!pskb_may_pull(skb, ETH_HLEN)) { napi_reuse_skb(napi, skb); + skb = NULL; goto out; } @@ -4424,6 +4444,45 @@ err_uninit: } /** + * init_dummy_netdev - init a dummy network device for NAPI + * @dev: device to init + * + * This takes a network device structure and initialize the minimum + * amount of fields so it can be used to schedule NAPI polls without + * registering a full blown interface. This is to be used by drivers + * that need to tie several hardware interfaces to a single NAPI + * poll scheduler due to HW limitations. + */ +int init_dummy_netdev(struct net_device *dev) +{ + /* Clear everything. Note we don't initialize spinlocks + * are they aren't supposed to be taken by any of the + * NAPI code and this dummy netdev is supposed to be + * only ever used for NAPI polls + */ + memset(dev, 0, sizeof(struct net_device)); + + /* make sure we BUG if trying to hit standard + * register/unregister code path + */ + dev->reg_state = NETREG_DUMMY; + + /* initialize the ref count */ + atomic_set(&dev->refcnt, 1); + + /* NAPI wants this */ + INIT_LIST_HEAD(&dev->napi_list); + + /* a dummy interface is started by default */ + set_bit(__LINK_STATE_PRESENT, &dev->state); + set_bit(__LINK_STATE_START, &dev->state); + + return 0; +} +EXPORT_SYMBOL_GPL(init_dummy_netdev); + + +/** * register_netdev - register a network device * @dev: device to register * @@ -5151,9 +5210,6 @@ static int __init net_dev_init(void) hotcpu_notifier(dev_cpu_callback, 0); dst_init(); dev_mcast_init(); - #ifdef CONFIG_NET_DMA - dmaengine_get(); - #endif rc = 0; out: return rc; diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c index 55cffad2f32..55151faaf90 100644 --- a/net/core/net_namespace.c +++ b/net/core/net_namespace.c @@ -341,8 +341,8 @@ again: rv = register_pernet_operations(first_device, ops); if (rv < 0) ida_remove(&net_generic_ids, *id); - mutex_unlock(&net_mutex); out: + mutex_unlock(&net_mutex); return rv; } EXPORT_SYMBOL_GPL(register_pernet_gen_subsys); diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 5110b359c75..da74b844f4e 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -73,17 +73,13 @@ static struct kmem_cache *skbuff_fclone_cache __read_mostly; static void sock_pipe_buf_release(struct pipe_inode_info *pipe, struct pipe_buffer *buf) { - struct sk_buff *skb = (struct sk_buff *) buf->private; - - kfree_skb(skb); + put_page(buf->page); } static void sock_pipe_buf_get(struct pipe_inode_info *pipe, struct pipe_buffer *buf) { - struct sk_buff *skb = (struct sk_buff *) buf->private; - - skb_get(skb); + get_page(buf->page); } static int sock_pipe_buf_steal(struct pipe_inode_info *pipe, @@ -1334,9 +1330,19 @@ fault: */ static void sock_spd_release(struct splice_pipe_desc *spd, unsigned int i) { - struct sk_buff *skb = (struct sk_buff *) spd->partial[i].private; + put_page(spd->pages[i]); +} + +static inline struct page *linear_to_page(struct page *page, unsigned int len, + unsigned int offset) +{ + struct page *p = alloc_pages(GFP_KERNEL, 0); - kfree_skb(skb); + if (!p) + return NULL; + memcpy(page_address(p) + offset, page_address(page) + offset, len); + + return p; } /* @@ -1344,16 +1350,23 @@ static void sock_spd_release(struct splice_pipe_desc *spd, unsigned int i) */ static inline int spd_fill_page(struct splice_pipe_desc *spd, struct page *page, unsigned int len, unsigned int offset, - struct sk_buff *skb) + struct sk_buff *skb, int linear) { if (unlikely(spd->nr_pages == PIPE_BUFFERS)) return 1; + if (linear) { + page = linear_to_page(page, len, offset); + if (!page) + return 1; + } else + get_page(page); + spd->pages[spd->nr_pages] = page; spd->partial[spd->nr_pages].len = len; spd->partial[spd->nr_pages].offset = offset; - spd->partial[spd->nr_pages].private = (unsigned long) skb_get(skb); spd->nr_pages++; + return 0; } @@ -1369,7 +1382,7 @@ static inline void __segment_seek(struct page **page, unsigned int *poff, static inline int __splice_segment(struct page *page, unsigned int poff, unsigned int plen, unsigned int *off, unsigned int *len, struct sk_buff *skb, - struct splice_pipe_desc *spd) + struct splice_pipe_desc *spd, int linear) { if (!*len) return 1; @@ -1392,7 +1405,7 @@ static inline int __splice_segment(struct page *page, unsigned int poff, /* the linear region may spread across several pages */ flen = min_t(unsigned int, flen, PAGE_SIZE - poff); - if (spd_fill_page(spd, page, flen, poff, skb)) + if (spd_fill_page(spd, page, flen, poff, skb, linear)) return 1; __segment_seek(&page, &poff, &plen, flen); @@ -1419,7 +1432,7 @@ static int __skb_splice_bits(struct sk_buff *skb, unsigned int *offset, if (__splice_segment(virt_to_page(skb->data), (unsigned long) skb->data & (PAGE_SIZE - 1), skb_headlen(skb), - offset, len, skb, spd)) + offset, len, skb, spd, 1)) return 1; /* @@ -1429,7 +1442,7 @@ static int __skb_splice_bits(struct sk_buff *skb, unsigned int *offset, const skb_frag_t *f = &skb_shinfo(skb)->frags[seg]; if (__splice_segment(f->page, f->page_offset, f->size, - offset, len, skb, spd)) + offset, len, skb, spd, 0)) return 1; } @@ -1442,7 +1455,7 @@ static int __skb_splice_bits(struct sk_buff *skb, unsigned int *offset, * the frag list, if such a thing exists. We'd probably need to recurse to * handle that cleanly. */ -int skb_splice_bits(struct sk_buff *__skb, unsigned int offset, +int skb_splice_bits(struct sk_buff *skb, unsigned int offset, struct pipe_inode_info *pipe, unsigned int tlen, unsigned int flags) { @@ -1455,16 +1468,6 @@ int skb_splice_bits(struct sk_buff *__skb, unsigned int offset, .ops = &sock_pipe_buf_ops, .spd_release = sock_spd_release, }; - struct sk_buff *skb; - - /* - * I'd love to avoid the clone here, but tcp_read_sock() - * ignores reference counts and unconditonally kills the sk_buff - * on return from the actor. - */ - skb = skb_clone(__skb, GFP_KERNEL); - if (unlikely(!skb)) - return -ENOMEM; /* * __skb_splice_bits() only fails if the output has no room left, @@ -1488,15 +1491,9 @@ int skb_splice_bits(struct sk_buff *__skb, unsigned int offset, } done: - /* - * drop our reference to the clone, the pipe consumption will - * drop the rest. - */ - kfree_skb(skb); - if (spd.nr_pages) { + struct sock *sk = skb->sk; int ret; - struct sock *sk = __skb->sk; /* * Drop the socket lock, otherwise we have reverse @@ -2215,10 +2212,10 @@ unsigned int skb_seq_read(unsigned int consumed, const u8 **data, return 0; next_skb: - block_limit = skb_headlen(st->cur_skb); + block_limit = skb_headlen(st->cur_skb) + st->stepped_offset; if (abs_offset < block_limit) { - *data = st->cur_skb->data + abs_offset; + *data = st->cur_skb->data + (abs_offset - st->stepped_offset); return block_limit - abs_offset; } @@ -2253,13 +2250,14 @@ next_skb: st->frag_data = NULL; } - if (st->cur_skb->next) { - st->cur_skb = st->cur_skb->next; + if (st->root_skb == st->cur_skb && + skb_shinfo(st->root_skb)->frag_list) { + st->cur_skb = skb_shinfo(st->root_skb)->frag_list; st->frag_idx = 0; goto next_skb; - } else if (st->root_skb == st->cur_skb && - skb_shinfo(st->root_skb)->frag_list) { - st->cur_skb = skb_shinfo(st->root_skb)->frag_list; + } else if (st->cur_skb->next) { + st->cur_skb = st->cur_skb->next; + st->frag_idx = 0; goto next_skb; } @@ -2588,8 +2586,9 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb) struct sk_buff *nskb; unsigned int headroom; unsigned int hlen = p->data - skb_mac_header(p); + unsigned int len = skb->len; - if (hlen + p->len + skb->len >= 65536) + if (hlen + p->len + len >= 65536) return -E2BIG; if (skb_shinfo(p)->frag_list) @@ -2602,6 +2601,12 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb) skb_shinfo(skb)->nr_frags * sizeof(skb_frag_t)); skb_shinfo(p)->nr_frags += skb_shinfo(skb)->nr_frags; + skb_shinfo(skb)->nr_frags = 0; + + skb->truesize -= skb->data_len; + skb->len -= skb->data_len; + skb->data_len = 0; + NAPI_GRO_CB(skb)->free = 1; goto done; } @@ -2645,9 +2650,9 @@ merge: done: NAPI_GRO_CB(p)->count++; - p->data_len += skb->len; - p->truesize += skb->len; - p->len += skb->len; + p->data_len += len; + p->truesize += len; + p->len += len; NAPI_GRO_CB(skb)->same_flow = 1; return 0; diff --git a/net/dccp/ccids/Kconfig b/net/dccp/ccids/Kconfig index b28bf962edc..4b5db44970a 100644 --- a/net/dccp/ccids/Kconfig +++ b/net/dccp/ccids/Kconfig @@ -29,7 +29,7 @@ config IP_DCCP_CCID3 http://www.ietf.org/rfc/rfc4342.txt The TFRC congestion control algorithms were initially described in - RFC 5448. + RFC 5348. This text was extracted from RFC 4340 (sec. 10.2), http://www.ietf.org/rfc/rfc4340.txt diff --git a/net/dccp/ccids/lib/tfrc.c b/net/dccp/ccids/lib/tfrc.c index 60c412ccfee..4902029854d 100644 --- a/net/dccp/ccids/lib/tfrc.c +++ b/net/dccp/ccids/lib/tfrc.c @@ -36,7 +36,7 @@ out: return rc; } -void __exit tfrc_lib_exit(void) +void tfrc_lib_exit(void) { tfrc_rx_packet_history_exit(); tfrc_tx_packet_history_exit(); diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c index 42a0f3dd3fd..d722013c1ca 100644 --- a/net/ipv4/ipconfig.c +++ b/net/ipv4/ipconfig.c @@ -1268,6 +1268,9 @@ __be32 __init root_nfs_parse_addr(char *name) static int __init ip_auto_config(void) { __be32 addr; +#ifdef IPCONFIG_DYNAMIC + int retries = CONF_OPEN_RETRIES; +#endif #ifdef CONFIG_PROC_FS proc_net_fops_create(&init_net, "pnp", S_IRUGO, &pnp_seq_fops); @@ -1304,9 +1307,6 @@ static int __init ip_auto_config(void) #endif ic_first_dev->next) { #ifdef IPCONFIG_DYNAMIC - - int retries = CONF_OPEN_RETRIES; - if (ic_dynamic() < 0) { ic_close_devs(); diff --git a/net/ipv4/netfilter/iptable_filter.c b/net/ipv4/netfilter/iptable_filter.c index c9224310eba..52cb6939d09 100644 --- a/net/ipv4/netfilter/iptable_filter.c +++ b/net/ipv4/netfilter/iptable_filter.c @@ -93,13 +93,8 @@ ipt_local_out_hook(unsigned int hook, { /* root is playing with raw sockets. */ if (skb->len < sizeof(struct iphdr) || - ip_hdrlen(skb) < sizeof(struct iphdr)) { - if (net_ratelimit()) - printk("iptable_filter: ignoring short SOCK_RAW " - "packet.\n"); + ip_hdrlen(skb) < sizeof(struct iphdr)) return NF_ACCEPT; - } - return ipt_do_table(skb, hook, in, out, dev_net(out)->ipv4.iptable_filter); } diff --git a/net/ipv4/netfilter/iptable_mangle.c b/net/ipv4/netfilter/iptable_mangle.c index 69f2c428714..3929d20b9e4 100644 --- a/net/ipv4/netfilter/iptable_mangle.c +++ b/net/ipv4/netfilter/iptable_mangle.c @@ -132,12 +132,8 @@ ipt_local_hook(unsigned int hook, /* root is playing with raw sockets. */ if (skb->len < sizeof(struct iphdr) - || ip_hdrlen(skb) < sizeof(struct iphdr)) { - if (net_ratelimit()) - printk("iptable_mangle: ignoring short SOCK_RAW " - "packet.\n"); + || ip_hdrlen(skb) < sizeof(struct iphdr)) return NF_ACCEPT; - } /* Save things which could affect route */ mark = skb->mark; diff --git a/net/ipv4/netfilter/iptable_raw.c b/net/ipv4/netfilter/iptable_raw.c index 8faebfe638f..7f65d18333e 100644 --- a/net/ipv4/netfilter/iptable_raw.c +++ b/net/ipv4/netfilter/iptable_raw.c @@ -65,12 +65,8 @@ ipt_local_hook(unsigned int hook, { /* root is playing with raw sockets. */ if (skb->len < sizeof(struct iphdr) || - ip_hdrlen(skb) < sizeof(struct iphdr)) { - if (net_ratelimit()) - printk("iptable_raw: ignoring short SOCK_RAW " - "packet.\n"); + ip_hdrlen(skb) < sizeof(struct iphdr)) return NF_ACCEPT; - } return ipt_do_table(skb, hook, in, out, dev_net(out)->ipv4.iptable_raw); } diff --git a/net/ipv4/netfilter/iptable_security.c b/net/ipv4/netfilter/iptable_security.c index 36f3be3cc42..a52a35f4a58 100644 --- a/net/ipv4/netfilter/iptable_security.c +++ b/net/ipv4/netfilter/iptable_security.c @@ -96,12 +96,8 @@ ipt_local_out_hook(unsigned int hook, { /* Somebody is playing with raw sockets. */ if (skb->len < sizeof(struct iphdr) - || ip_hdrlen(skb) < sizeof(struct iphdr)) { - if (net_ratelimit()) - printk(KERN_INFO "iptable_security: ignoring short " - "SOCK_RAW packet.\n"); + || ip_hdrlen(skb) < sizeof(struct iphdr)) return NF_ACCEPT; - } return ipt_do_table(skb, hook, in, out, dev_net(out)->ipv4.iptable_security); } diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c index b2141e11575..4beb04fac58 100644 --- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c +++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c @@ -145,11 +145,8 @@ static unsigned int ipv4_conntrack_local(unsigned int hooknum, { /* root is playing with raw sockets. */ if (skb->len < sizeof(struct iphdr) || - ip_hdrlen(skb) < sizeof(struct iphdr)) { - if (net_ratelimit()) - printk("ipt_hook: happy cracking.\n"); + ip_hdrlen(skb) < sizeof(struct iphdr)) return NF_ACCEPT; - } return nf_conntrack_in(dev_net(out), PF_INET, hooknum, skb); } diff --git a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c index 1fd3ef7718b..2a8bee26f43 100644 --- a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c +++ b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c @@ -20,7 +20,7 @@ #include <net/netfilter/nf_conntrack_core.h> #include <net/netfilter/nf_log.h> -static unsigned long nf_ct_icmp_timeout __read_mostly = 30*HZ; +static unsigned int nf_ct_icmp_timeout __read_mostly = 30*HZ; static bool icmp_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff, struct nf_conntrack_tuple *tuple) diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index ce572f9dff0..76b148bcb0d 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -522,8 +522,13 @@ static int tcp_splice_data_recv(read_descriptor_t *rd_desc, struct sk_buff *skb, unsigned int offset, size_t len) { struct tcp_splice_state *tss = rd_desc->arg.data; + int ret; - return skb_splice_bits(skb, offset, tss->pipe, tss->len, tss->flags); + ret = skb_splice_bits(skb, offset, tss->pipe, min(rd_desc->count, len), + tss->flags); + if (ret > 0) + rd_desc->count -= ret; + return ret; } static int __tcp_splice_read(struct sock *sk, struct tcp_splice_state *tss) @@ -531,6 +536,7 @@ static int __tcp_splice_read(struct sock *sk, struct tcp_splice_state *tss) /* Store TCP splice context information in read_descriptor_t. */ read_descriptor_t rd_desc = { .arg.data = tss, + .count = tss->len, }; return tcp_read_sock(sk, &rd_desc, tcp_splice_data_recv); @@ -611,11 +617,13 @@ ssize_t tcp_splice_read(struct socket *sock, loff_t *ppos, tss.len -= ret; spliced += ret; + if (!timeo) + break; release_sock(sk); lock_sock(sk); if (sk->sk_err || sk->sk_state == TCP_CLOSE || - (sk->sk_shutdown & RCV_SHUTDOWN) || !timeo || + (sk->sk_shutdown & RCV_SHUTDOWN) || signal_pending(current)) break; } @@ -2382,7 +2390,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features) unsigned int seq; __be32 delta; unsigned int oldlen; - unsigned int len; + unsigned int mss; if (!pskb_may_pull(skb, sizeof(*th))) goto out; @@ -2398,10 +2406,13 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features) oldlen = (u16)~skb->len; __skb_pull(skb, thlen); + mss = skb_shinfo(skb)->gso_size; + if (unlikely(skb->len <= mss)) + goto out; + if (skb_gso_ok(skb, features | NETIF_F_GSO_ROBUST)) { /* Packet is from an untrusted source, reset gso_segs. */ int type = skb_shinfo(skb)->gso_type; - int mss; if (unlikely(type & ~(SKB_GSO_TCPV4 | @@ -2412,7 +2423,6 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features) !(type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)))) goto out; - mss = skb_shinfo(skb)->gso_size; skb_shinfo(skb)->gso_segs = DIV_ROUND_UP(skb->len, mss); segs = NULL; @@ -2423,8 +2433,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features) if (IS_ERR(segs)) goto out; - len = skb_shinfo(skb)->gso_size; - delta = htonl(oldlen + (thlen + len)); + delta = htonl(oldlen + (thlen + mss)); skb = segs; th = tcp_hdr(skb); @@ -2440,7 +2449,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features) csum_fold(csum_partial(skb_transport_header(skb), thlen, skb->csum)); - seq += len; + seq += mss; skb = skb->next; th = tcp_hdr(skb); diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index cf5ab0581eb..b7faffe5c02 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -120,8 +120,11 @@ EXPORT_SYMBOL(sysctl_udp_wmem_min); atomic_t udp_memory_allocated; EXPORT_SYMBOL(udp_memory_allocated); +#define PORTS_PER_CHAIN (65536 / UDP_HTABLE_SIZE) + static int udp_lib_lport_inuse(struct net *net, __u16 num, const struct udp_hslot *hslot, + unsigned long *bitmap, struct sock *sk, int (*saddr_comp)(const struct sock *sk1, const struct sock *sk2)) @@ -132,12 +135,17 @@ static int udp_lib_lport_inuse(struct net *net, __u16 num, sk_nulls_for_each(sk2, node, &hslot->head) if (net_eq(sock_net(sk2), net) && sk2 != sk && - sk2->sk_hash == num && + (bitmap || sk2->sk_hash == num) && (!sk2->sk_reuse || !sk->sk_reuse) && (!sk2->sk_bound_dev_if || !sk->sk_bound_dev_if || sk2->sk_bound_dev_if == sk->sk_bound_dev_if) && - (*saddr_comp)(sk, sk2)) - return 1; + (*saddr_comp)(sk, sk2)) { + if (bitmap) + __set_bit(sk2->sk_hash / UDP_HTABLE_SIZE, + bitmap); + else + return 1; + } return 0; } @@ -160,32 +168,47 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum, if (!snum) { int low, high, remaining; unsigned rand; - unsigned short first; + unsigned short first, last; + DECLARE_BITMAP(bitmap, PORTS_PER_CHAIN); inet_get_local_port_range(&low, &high); remaining = (high - low) + 1; rand = net_random(); - snum = first = rand % remaining + low; - rand |= 1; - for (;;) { - hslot = &udptable->hash[udp_hashfn(net, snum)]; + first = (((u64)rand * remaining) >> 32) + low; + /* + * force rand to be an odd multiple of UDP_HTABLE_SIZE + */ + rand = (rand | 1) * UDP_HTABLE_SIZE; + for (last = first + UDP_HTABLE_SIZE; first != last; first++) { + hslot = &udptable->hash[udp_hashfn(net, first)]; + bitmap_zero(bitmap, PORTS_PER_CHAIN); spin_lock_bh(&hslot->lock); - if (!udp_lib_lport_inuse(net, snum, hslot, sk, saddr_comp)) - break; - spin_unlock_bh(&hslot->lock); + udp_lib_lport_inuse(net, snum, hslot, bitmap, sk, + saddr_comp); + + snum = first; + /* + * Iterate on all possible values of snum for this hash. + * Using steps of an odd multiple of UDP_HTABLE_SIZE + * give us randomization and full range coverage. + */ do { - snum = snum + rand; - } while (snum < low || snum > high); - if (snum == first) - goto fail; + if (low <= snum && snum <= high && + !test_bit(snum / UDP_HTABLE_SIZE, bitmap)) + goto found; + snum += rand; + } while (snum != first); + spin_unlock_bh(&hslot->lock); } + goto fail; } else { hslot = &udptable->hash[udp_hashfn(net, snum)]; spin_lock_bh(&hslot->lock); - if (udp_lib_lport_inuse(net, snum, hslot, sk, saddr_comp)) + if (udp_lib_lport_inuse(net, snum, hslot, NULL, sk, saddr_comp)) goto fail_unlock; } +found: inet_sk(sk)->num = snum; sk->sk_hash = snum; if (sk_unhashed(sk)) { diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index e92ad8455c6..f9afb452249 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -4250,7 +4250,7 @@ static struct addrconf_sysctl_table .procname = "mc_forwarding", .data = &ipv6_devconf.mc_forwarding, .maxlen = sizeof(int), - .mode = 0644, + .mode = 0444, .proc_handler = proc_dointvec, }, #endif diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index 94f74f5b0cb..c802bc1658a 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -797,6 +797,7 @@ static struct sk_buff **ipv6_gro_receive(struct sk_buff **head, unsigned int nlen; int flush = 1; int proto; + __wsum csum; if (unlikely(!pskb_may_pull(skb, sizeof(*iph)))) goto out; @@ -808,6 +809,7 @@ static struct sk_buff **ipv6_gro_receive(struct sk_buff **head, rcu_read_lock(); proto = ipv6_gso_pull_exthdrs(skb, iph->nexthdr); + iph = ipv6_hdr(skb); IPV6_GRO_CB(skb)->proto = proto; ops = rcu_dereference(inet6_protos[proto]); if (!ops || !ops->gro_receive) @@ -839,8 +841,13 @@ static struct sk_buff **ipv6_gro_receive(struct sk_buff **head, NAPI_GRO_CB(skb)->flush |= flush; + csum = skb->csum; + skb_postpull_rcsum(skb, iph, skb_network_header_len(skb)); + pp = ops->gro_receive(head, skb); + skb->csum = csum; + out_unlock: rcu_read_unlock(); diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c index 4f433847d95..36dff880718 100644 --- a/net/ipv6/icmp.c +++ b/net/ipv6/icmp.c @@ -443,10 +443,10 @@ void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info, if (xfrm_decode_session_reverse(skb, &fl2, AF_INET6)) goto relookup_failed; - if (ip6_dst_lookup(sk, &dst2, &fl)) + if (ip6_dst_lookup(sk, &dst2, &fl2)) goto relookup_failed; - err = xfrm_lookup(net, &dst2, &fl, sk, XFRM_LOOKUP_ICMP); + err = xfrm_lookup(net, &dst2, &fl2, sk, XFRM_LOOKUP_ICMP); switch (err) { case 0: dst_release(dst); diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index 29c7c99e69f..52ee1dced2f 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -298,6 +298,10 @@ static void fib6_dump_end(struct netlink_callback *cb) struct fib6_walker_t *w = (void*)cb->args[2]; if (w) { + if (cb->args[4]) { + cb->args[4] = 0; + fib6_walker_unlink(w); + } cb->args[2] = 0; kfree(w); } @@ -330,15 +334,12 @@ static int fib6_dump_table(struct fib6_table *table, struct sk_buff *skb, read_lock_bh(&table->tb6_lock); res = fib6_walk_continue(w); read_unlock_bh(&table->tb6_lock); - if (res != 0) { - if (res < 0) - fib6_walker_unlink(w); - goto end; + if (res <= 0) { + fib6_walker_unlink(w); + cb->args[4] = 0; } - fib6_walker_unlink(w); - cb->args[4] = 0; } -end: + return res; } diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c index 936f48946e2..f171e8dbac9 100644 --- a/net/ipv6/ip6_input.c +++ b/net/ipv6/ip6_input.c @@ -255,6 +255,7 @@ int ip6_mc_input(struct sk_buff *skb) * IPv6 multicast router mode is now supported ;) */ if (dev_net(skb->dev)->ipv6.devconf_all->mc_forwarding && + !(ipv6_addr_type(&hdr->daddr) & IPV6_ADDR_LINKLOCAL) && likely(!(IP6CB(skb)->flags & IP6SKB_FORWARDED))) { /* * Okay, we try to forward - split and duplicate @@ -316,7 +317,6 @@ int ip6_mc_input(struct sk_buff *skb) } if (skb2) { - skb2->dev = skb2->dst->dev; ip6_mr_input(skb2); } } diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c index 3c51b2d827f..228be551e9c 100644 --- a/net/ipv6/ip6mr.c +++ b/net/ipv6/ip6mr.c @@ -48,6 +48,7 @@ #include <linux/pim.h> #include <net/addrconf.h> #include <linux/netfilter_ipv6.h> +#include <net/ip6_checksum.h> /* Big lock, protecting vif table, mrt cache and mroute socket state. Note that the changes are semaphored via rtnl_lock. @@ -365,7 +366,9 @@ static int pim6_rcv(struct sk_buff *skb) pim = (struct pimreghdr *)skb_transport_header(skb); if (pim->type != ((PIM_VERSION << 4) | PIM_REGISTER) || (pim->flags & PIM_NULL_REGISTER) || - (ip_compute_csum((void *)pim, sizeof(*pim)) != 0 && + (csum_ipv6_magic(&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr, + sizeof(*pim), IPPROTO_PIM, + csum_partial((void *)pim, sizeof(*pim), 0)) && csum_fold(skb_checksum(skb, 0, skb->len, 0)))) goto drop; @@ -392,7 +395,7 @@ static int pim6_rcv(struct sk_buff *skb) skb_pull(skb, (u8 *)encap - skb->data); skb_reset_network_header(skb); skb->dev = reg_dev; - skb->protocol = htons(ETH_P_IP); + skb->protocol = htons(ETH_P_IPV6); skb->ip_summed = 0; skb->pkt_type = PACKET_HOST; dst_release(skb->dst); @@ -481,6 +484,7 @@ static int mif6_delete(struct net *net, int vifi) { struct mif_device *v; struct net_device *dev; + struct inet6_dev *in6_dev; if (vifi < 0 || vifi >= net->ipv6.maxvif) return -EADDRNOTAVAIL; @@ -513,6 +517,10 @@ static int mif6_delete(struct net *net, int vifi) dev_set_allmulti(dev, -1); + in6_dev = __in6_dev_get(dev); + if (in6_dev) + in6_dev->cnf.mc_forwarding--; + if (v->flags & MIFF_REGISTER) unregister_netdevice(dev); @@ -622,6 +630,7 @@ static int mif6_add(struct net *net, struct mif6ctl *vifc, int mrtsock) int vifi = vifc->mif6c_mifi; struct mif_device *v = &net->ipv6.vif6_table[vifi]; struct net_device *dev; + struct inet6_dev *in6_dev; int err; /* Is vif busy ? */ @@ -662,6 +671,10 @@ static int mif6_add(struct net *net, struct mif6ctl *vifc, int mrtsock) return -EINVAL; } + in6_dev = __in6_dev_get(dev); + if (in6_dev) + in6_dev->cnf.mc_forwarding++; + /* * Fill in the VIF structures */ @@ -838,8 +851,6 @@ static int ip6mr_cache_report(struct net *net, struct sk_buff *pkt, mifi_t mifi, skb->dst = dst_clone(pkt->dst); skb->ip_summed = CHECKSUM_UNNECESSARY; - - skb_pull(skb, sizeof(struct ipv6hdr)); } if (net->ipv6.mroute6_sk == NULL) { @@ -1222,8 +1233,10 @@ static int ip6mr_sk_init(struct sock *sk) rtnl_lock(); write_lock_bh(&mrt_lock); - if (likely(net->ipv6.mroute6_sk == NULL)) + if (likely(net->ipv6.mroute6_sk == NULL)) { net->ipv6.mroute6_sk = sk; + net->ipv6.devconf_all->mc_forwarding++; + } else err = -EADDRINUSE; write_unlock_bh(&mrt_lock); @@ -1242,6 +1255,7 @@ int ip6mr_sk_done(struct sock *sk) if (sk == net->ipv6.mroute6_sk) { write_lock_bh(&mrt_lock); net->ipv6.mroute6_sk = NULL; + net->ipv6.devconf_all->mc_forwarding--; write_unlock_bh(&mrt_lock); mroute_clean_tables(net); diff --git a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c index bd52151d31e..c455cf4ee75 100644 --- a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c +++ b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c @@ -26,7 +26,7 @@ #include <net/netfilter/ipv6/nf_conntrack_icmpv6.h> #include <net/netfilter/nf_log.h> -static unsigned long nf_ct_icmpv6_timeout __read_mostly = 30*HZ; +static unsigned int nf_ct_icmpv6_timeout __read_mostly = 30*HZ; static bool icmpv6_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff, diff --git a/net/ipv6/route.c b/net/ipv6/route.c index c4a59824ac2..9c574235c90 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -794,7 +794,7 @@ void ip6_route_input(struct sk_buff *skb) .proto = iph->nexthdr, }; - if (rt6_need_strict(&iph->daddr)) + 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); diff --git a/net/key/af_key.c b/net/key/af_key.c index f8bd8df5e25..7dcbde3ea7d 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -1285,6 +1285,7 @@ static struct xfrm_state * pfkey_msg2xfrm_state(struct net *net, ext_hdrs[SADB_X_EXT_NAT_T_DPORT-1]; natt->encap_dport = n_port->sadb_x_nat_t_port_port; } + memset(&natt->encap_oa, 0, sizeof(natt->encap_oa)); } err = xfrm_init_state(x); diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index 5f510a13b9f..c5c0c527109 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -469,7 +469,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid) struct ieee80211_sub_if_data *sdata; u16 start_seq_num; u8 *state; - int ret; + int ret = 0; if ((tid >= STA_TID_NUM) || !(hw->flags & IEEE80211_HW_AMPDU_AGGREGATION)) return -EINVAL; diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 5abbc3f07dd..b9074824862 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -699,7 +699,8 @@ int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, return 0; /* Setting ad-hoc mode on non-IBSS channel is not supported. */ - if (sdata->local->oper_channel->flags & IEEE80211_CHAN_NO_IBSS) + if (sdata->local->oper_channel->flags & IEEE80211_CHAN_NO_IBSS && + type == NL80211_IFTYPE_ADHOC) return -EOPNOTSUPP; /* diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c index 929ba542fd7..1159bdb4119 100644 --- a/net/mac80211/mesh_plink.c +++ b/net/mac80211/mesh_plink.c @@ -107,6 +107,7 @@ static struct sta_info *mesh_plink_alloc(struct ieee80211_sub_if_data *sdata, sta->flags = WLAN_STA_AUTHORIZED; sta->sta.supp_rates[local->hw.conf.channel->band] = rates; + rate_control_rate_init(sta); return sta; } diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 5ba721b6a39..2b890af01ba 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -620,8 +620,8 @@ static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata, if (use_short_slot != bss_conf->use_short_slot) { #ifdef CONFIG_MAC80211_VERBOSE_DEBUG if (net_ratelimit()) { - printk(KERN_DEBUG "%s: switched to %s slot" - " (BSSID=%s)\n", + printk(KERN_DEBUG "%s: switched to %s slot time" + " (BSSID=%pM)\n", sdata->dev->name, use_short_slot ? "short" : "long", ifsta->bssid); diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c index 2b3b490a607..3824990d340 100644 --- a/net/mac80211/rc80211_minstrel.c +++ b/net/mac80211/rc80211_minstrel.c @@ -395,13 +395,15 @@ minstrel_rate_init(void *priv, struct ieee80211_supported_band *sband, { struct minstrel_sta_info *mi = priv_sta; struct minstrel_priv *mp = priv; - struct minstrel_rate *mr_ctl; + struct ieee80211_local *local = hw_to_local(mp->hw); + struct ieee80211_rate *ctl_rate; unsigned int i, n = 0; unsigned int t_slot = 9; /* FIXME: get real slot time */ mi->lowest_rix = rate_lowest_index(sband, sta); - mr_ctl = &mi->r[rix_to_ndx(mi, mi->lowest_rix)]; - mi->sp_ack_dur = mr_ctl->ack_time; + ctl_rate = &sband->bitrates[mi->lowest_rix]; + mi->sp_ack_dur = ieee80211_frame_duration(local, 10, ctl_rate->bitrate, + !!(ctl_rate->flags & IEEE80211_RATE_ERP_G), 1); for (i = 0; i < sband->n_bitrates; i++) { struct minstrel_rate *mr = &mi->r[n]; @@ -416,7 +418,7 @@ minstrel_rate_init(void *priv, struct ieee80211_supported_band *sband, mr->rix = i; mr->bitrate = sband->bitrates[i].bitrate / 5; - calc_rate_durations(mi, hw_to_local(mp->hw), mr, + calc_rate_durations(mi, local, mr, &sband->bitrates[i]); /* calculate maximum number of retransmissions before diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index dc2606d0ae7..e49a5b99cf1 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -195,7 +195,6 @@ struct sta_ampdu_mlme { * @tx_packets: number of RX/TX MSDUs * @tx_bytes: number of bytes transmitted to this STA * @tx_fragments: number of transmitted MPDUs - * @last_txrate: description of the last used transmit rate * @tid_seq: per-TID sequence numbers for sending to this STA * @ampdu_mlme: A-MPDU state machine state * @timer_to_tid: identity mapping to ID timers diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index a4af3a124cc..4278e545638 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -1307,8 +1307,10 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev) if (is_multicast_ether_addr(hdr->addr3)) memcpy(hdr->addr1, hdr->addr3, ETH_ALEN); else - if (mesh_nexthop_lookup(skb, osdata)) - return 0; + if (mesh_nexthop_lookup(skb, osdata)) { + dev_put(odev); + return 0; + } if (memcmp(odev->dev_addr, hdr->addr4, ETH_ALEN) != 0) IEEE80211_IFSTA_MESH_CTR_INC(&osdata->u.mesh, fwded_frames); diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c index 7e83f74cd5d..90ce9ddb945 100644 --- a/net/netfilter/nf_conntrack_core.c +++ b/net/netfilter/nf_conntrack_core.c @@ -469,7 +469,7 @@ struct nf_conn *nf_conntrack_alloc(struct net *net, const struct nf_conntrack_tuple *repl, gfp_t gfp) { - struct nf_conn *ct = NULL; + struct nf_conn *ct; if (unlikely(!nf_conntrack_hash_rnd_initted)) { get_random_bytes(&nf_conntrack_hash_rnd, 4); @@ -551,7 +551,7 @@ init_conntrack(struct net *net, } ct = nf_conntrack_alloc(net, tuple, &repl_tuple, GFP_ATOMIC); - if (ct == NULL || IS_ERR(ct)) { + if (IS_ERR(ct)) { pr_debug("Can't allocate conntrack.\n"); return (struct nf_conntrack_tuple_hash *)ct; } diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c index 00e8c27130f..c32a7e8e3a1 100644 --- a/net/netfilter/nf_conntrack_netlink.c +++ b/net/netfilter/nf_conntrack_netlink.c @@ -831,13 +831,16 @@ ctnetlink_parse_nat_setup(struct nf_conn *ct, if (!parse_nat_setup) { #ifdef CONFIG_MODULES rcu_read_unlock(); + spin_unlock_bh(&nf_conntrack_lock); nfnl_unlock(); if (request_module("nf-nat-ipv4") < 0) { nfnl_lock(); + spin_lock_bh(&nf_conntrack_lock); rcu_read_lock(); return -EOPNOTSUPP; } nfnl_lock(); + spin_lock_bh(&nf_conntrack_lock); rcu_read_lock(); if (nfnetlink_parse_nat_setup_hook) return -EAGAIN; @@ -1134,7 +1137,7 @@ ctnetlink_create_conntrack(struct nlattr *cda[], struct nf_conntrack_helper *helper; ct = nf_conntrack_alloc(&init_net, otuple, rtuple, GFP_ATOMIC); - if (ct == NULL || IS_ERR(ct)) + if (IS_ERR(ct)) return -ENOMEM; if (!cda[CTA_TIMEOUT]) diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c index 89837a4eef7..bfbf521f6ea 100644 --- a/net/netfilter/x_tables.c +++ b/net/netfilter/x_tables.c @@ -273,6 +273,10 @@ static int match_revfn(u8 af, const char *name, u8 revision, int *bestp) have_rev = 1; } } + + if (af != NFPROTO_UNSPEC && !have_rev) + return match_revfn(NFPROTO_UNSPEC, name, revision, bestp); + return have_rev; } @@ -289,6 +293,10 @@ static int target_revfn(u8 af, const char *name, u8 revision, int *bestp) have_rev = 1; } } + + if (af != NFPROTO_UNSPEC && !have_rev) + return target_revfn(NFPROTO_UNSPEC, name, revision, bestp); + return have_rev; } diff --git a/net/netfilter/xt_time.c b/net/netfilter/xt_time.c index 29375ba8db7..93acaa59d10 100644 --- a/net/netfilter/xt_time.c +++ b/net/netfilter/xt_time.c @@ -243,6 +243,17 @@ static struct xt_match xt_time_mt_reg __read_mostly = { static int __init time_mt_init(void) { + int minutes = sys_tz.tz_minuteswest; + + if (minutes < 0) /* east of Greenwich */ + printk(KERN_INFO KBUILD_MODNAME + ": kernel timezone is +%02d%02d\n", + -minutes / 60, -minutes % 60); + else /* west of Greenwich */ + printk(KERN_INFO KBUILD_MODNAME + ": kernel timezone is -%02d%02d\n", + minutes / 60, minutes % 60); + return xt_register_match(&xt_time_mt_reg); } diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 5f94db2f3e9..9454d4ae46d 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -77,6 +77,7 @@ #include <linux/poll.h> #include <linux/module.h> #include <linux/init.h> +#include <linux/mutex.h> #ifdef CONFIG_INET #include <net/inet_common.h> @@ -175,6 +176,7 @@ struct packet_sock { #endif struct packet_type prot_hook; spinlock_t bind_lock; + struct mutex pg_vec_lock; unsigned int running:1, /* prot_hook is attached*/ auxdata:1, origdev:1; @@ -1069,6 +1071,7 @@ static int packet_create(struct net *net, struct socket *sock, int protocol) */ spin_lock_init(&po->bind_lock); + mutex_init(&po->pg_vec_lock); po->prot_hook.func = packet_rcv; if (sock->type == SOCK_PACKET) @@ -1865,6 +1868,7 @@ static int packet_set_ring(struct sock *sk, struct tpacket_req *req, int closing synchronize_net(); err = -EBUSY; + mutex_lock(&po->pg_vec_lock); if (closing || atomic_read(&po->mapped) == 0) { err = 0; #define XC(a, b) ({ __typeof__ ((a)) __t; __t = (a); (a) = (b); __t; }) @@ -1886,6 +1890,7 @@ static int packet_set_ring(struct sock *sk, struct tpacket_req *req, int closing if (atomic_read(&po->mapped)) printk(KERN_DEBUG "packet_mmap: vma is busy: %d\n", atomic_read(&po->mapped)); } + mutex_unlock(&po->pg_vec_lock); spin_lock(&po->bind_lock); if (was_running && !po->running) { @@ -1918,7 +1923,7 @@ static int packet_mmap(struct file *file, struct socket *sock, struct vm_area_st size = vma->vm_end - vma->vm_start; - lock_sock(sk); + mutex_lock(&po->pg_vec_lock); if (po->pg_vec == NULL) goto out; if (size != po->pg_vec_len*po->pg_vec_pages*PAGE_SIZE) @@ -1941,7 +1946,7 @@ static int packet_mmap(struct file *file, struct socket *sock, struct vm_area_st err = 0; out: - release_sock(sk); + mutex_unlock(&po->pg_vec_lock); return err; } #endif diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c index 5070643ce53..2f0f0b04d3f 100644 --- a/net/sched/sch_htb.c +++ b/net/sched/sch_htb.c @@ -661,12 +661,13 @@ static void htb_charge_class(struct htb_sched *q, struct htb_class *cl, * next pending event (0 for no event in pq). * Note: Applied are events whose have cl->pq_key <= q->now. */ -static psched_time_t htb_do_events(struct htb_sched *q, int level) +static psched_time_t htb_do_events(struct htb_sched *q, int level, + unsigned long start) { /* don't run for longer than 2 jiffies; 2 is used instead of 1 to simplify things when jiffy is going to be incremented too soon */ - unsigned long stop_at = jiffies + 2; + unsigned long stop_at = start + 2; while (time_before(jiffies, stop_at)) { struct htb_class *cl; long diff; @@ -685,8 +686,8 @@ static psched_time_t htb_do_events(struct htb_sched *q, int level) if (cl->cmode != HTB_CAN_SEND) htb_add_to_wait_tree(q, cl, diff); } - /* too much load - let's continue on next jiffie */ - return q->now + PSCHED_TICKS_PER_SEC / HZ; + /* too much load - let's continue on next jiffie (including above) */ + return q->now + 2 * PSCHED_TICKS_PER_SEC / HZ; } /* Returns class->node+prio from id-tree where classe's id is >= id. NULL @@ -845,6 +846,7 @@ static struct sk_buff *htb_dequeue(struct Qdisc *sch) struct htb_sched *q = qdisc_priv(sch); int level; psched_time_t next_event; + unsigned long start_at; /* try to dequeue direct packets as high prio (!) to minimize cpu work */ skb = __skb_dequeue(&q->direct_queue); @@ -857,6 +859,7 @@ static struct sk_buff *htb_dequeue(struct Qdisc *sch) if (!sch->q.qlen) goto fin; q->now = psched_get_time(); + start_at = jiffies; next_event = q->now + 5 * PSCHED_TICKS_PER_SEC; @@ -866,14 +869,14 @@ static struct sk_buff *htb_dequeue(struct Qdisc *sch) psched_time_t event; if (q->now >= q->near_ev_cache[level]) { - event = htb_do_events(q, level); + event = htb_do_events(q, level, start_at); if (!event) event = q->now + PSCHED_TICKS_PER_SEC; q->near_ev_cache[level] = event; } else event = q->near_ev_cache[level]; - if (event && next_event > event) + if (next_event > event) next_event = event; m = ~q->row_mask[level]; diff --git a/net/sctp/input.c b/net/sctp/input.c index bf612d954d4..2e4a8646dbc 100644 --- a/net/sctp/input.c +++ b/net/sctp/input.c @@ -249,6 +249,19 @@ int sctp_rcv(struct sk_buff *skb) */ sctp_bh_lock_sock(sk); + if (sk != rcvr->sk) { + /* Our cached sk is different from the rcvr->sk. This is + * because migrate()/accept() may have moved the association + * to a new socket and released all the sockets. So now we + * are holding a lock on the old socket while the user may + * be doing something with the new socket. Switch our veiw + * of the current sk. + */ + sctp_bh_unlock_sock(sk); + sk = rcvr->sk; + sctp_bh_lock_sock(sk); + } + if (sock_owned_by_user(sk)) { SCTP_INC_STATS_BH(SCTP_MIB_IN_PKT_BACKLOG); sctp_add_backlog(sk, skb); diff --git a/net/sctp/output.c b/net/sctp/output.c index c3f417f7ec6..73639355157 100644 --- a/net/sctp/output.c +++ b/net/sctp/output.c @@ -324,14 +324,16 @@ append: switch (chunk->chunk_hdr->type) { case SCTP_CID_DATA: retval = sctp_packet_append_data(packet, chunk); + if (SCTP_XMIT_OK != retval) + goto finish; /* Disallow SACK bundling after DATA. */ packet->has_sack = 1; /* Disallow AUTH bundling after DATA */ packet->has_auth = 1; /* Let it be knows that packet has DATA in it */ packet->has_data = 1; - if (SCTP_XMIT_OK != retval) - goto finish; + /* timestamp the chunk for rtx purposes */ + chunk->sent_at = jiffies; break; case SCTP_CID_COOKIE_ECHO: packet->has_cookie_echo = 1; @@ -470,7 +472,6 @@ int sctp_packet_transmit(struct sctp_packet *packet) } else chunk->resent = 1; - chunk->sent_at = jiffies; has_data = 1; } diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c index 247ebc95c1e..bc411c89621 100644 --- a/net/sctp/outqueue.c +++ b/net/sctp/outqueue.c @@ -929,7 +929,6 @@ static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout) } /* Finally, transmit new packets. */ - start_timer = 0; while ((chunk = sctp_outq_dequeue_data(q)) != NULL) { /* RFC 2960 6.5 Every DATA chunk MUST carry a valid * stream identifier. @@ -1028,7 +1027,7 @@ static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout) list_add_tail(&chunk->transmitted_list, &transport->transmitted); - sctp_transport_reset_timers(transport, start_timer-1); + sctp_transport_reset_timers(transport, 0); q->empty = 0; diff --git a/net/socket.c b/net/socket.c index 06603d73c41..35dd7371752 100644 --- a/net/socket.c +++ b/net/socket.c @@ -1214,7 +1214,7 @@ int sock_create_kern(int family, int type, int protocol, struct socket **res) return __sock_create(&init_net, family, type, protocol, res, 1); } -asmlinkage long sys_socket(int family, int type, int protocol) +SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol) { int retval; struct socket *sock; @@ -1255,8 +1255,8 @@ out_release: * Create a pair of connected sockets. */ -asmlinkage long sys_socketpair(int family, int type, int protocol, - int __user *usockvec) +SYSCALL_DEFINE4(socketpair, int, family, int, type, int, protocol, + int __user *, usockvec) { struct socket *sock1, *sock2; int fd1, fd2, err; @@ -1356,7 +1356,7 @@ out_fd1: * the protocol layer (having also checked the address is ok). */ -asmlinkage long sys_bind(int fd, struct sockaddr __user *umyaddr, int addrlen) +SYSCALL_DEFINE3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen) { struct socket *sock; struct sockaddr_storage address; @@ -1385,7 +1385,7 @@ asmlinkage long sys_bind(int fd, struct sockaddr __user *umyaddr, int addrlen) * ready for listening. */ -asmlinkage long sys_listen(int fd, int backlog) +SYSCALL_DEFINE2(listen, int, fd, int, backlog) { struct socket *sock; int err, fput_needed; @@ -1418,8 +1418,8 @@ asmlinkage long sys_listen(int fd, int backlog) * clean when we restucture accept also. */ -asmlinkage long sys_accept4(int fd, struct sockaddr __user *upeer_sockaddr, - int __user *upeer_addrlen, int flags) +SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr, + int __user *, upeer_addrlen, int, flags) { struct socket *sock, *newsock; struct file *newfile; @@ -1502,8 +1502,8 @@ out_fd: goto out_put; } -asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr, - int __user *upeer_addrlen) +SYSCALL_DEFINE3(accept, int, fd, struct sockaddr __user *, upeer_sockaddr, + int __user *, upeer_addrlen) { return sys_accept4(fd, upeer_sockaddr, upeer_addrlen, 0); } @@ -1520,8 +1520,8 @@ asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr, * include the -EINPROGRESS status for such sockets. */ -asmlinkage long sys_connect(int fd, struct sockaddr __user *uservaddr, - int addrlen) +SYSCALL_DEFINE3(connect, int, fd, struct sockaddr __user *, uservaddr, + int, addrlen) { struct socket *sock; struct sockaddr_storage address; @@ -1552,8 +1552,8 @@ out: * name to user space. */ -asmlinkage long sys_getsockname(int fd, struct sockaddr __user *usockaddr, - int __user *usockaddr_len) +SYSCALL_DEFINE3(getsockname, int, fd, struct sockaddr __user *, usockaddr, + int __user *, usockaddr_len) { struct socket *sock; struct sockaddr_storage address; @@ -1583,8 +1583,8 @@ out: * name to user space. */ -asmlinkage long sys_getpeername(int fd, struct sockaddr __user *usockaddr, - int __user *usockaddr_len) +SYSCALL_DEFINE3(getpeername, int, fd, struct sockaddr __user *, usockaddr, + int __user *, usockaddr_len) { struct socket *sock; struct sockaddr_storage address; @@ -1615,9 +1615,9 @@ asmlinkage long sys_getpeername(int fd, struct sockaddr __user *usockaddr, * the protocol. */ -asmlinkage long sys_sendto(int fd, void __user *buff, size_t len, - unsigned flags, struct sockaddr __user *addr, - int addr_len) +SYSCALL_DEFINE6(sendto, int, fd, void __user *, buff, size_t, len, + unsigned, flags, struct sockaddr __user *, addr, + int, addr_len) { struct socket *sock; struct sockaddr_storage address; @@ -1660,7 +1660,8 @@ out: * Send a datagram down a socket. */ -asmlinkage long sys_send(int fd, void __user *buff, size_t len, unsigned flags) +SYSCALL_DEFINE4(send, int, fd, void __user *, buff, size_t, len, + unsigned, flags) { return sys_sendto(fd, buff, len, flags, NULL, 0); } @@ -1671,9 +1672,9 @@ asmlinkage long sys_send(int fd, void __user *buff, size_t len, unsigned flags) * sender address from kernel to user space. */ -asmlinkage long sys_recvfrom(int fd, void __user *ubuf, size_t size, - unsigned flags, struct sockaddr __user *addr, - int __user *addr_len) +SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, ubuf, size_t, size, + unsigned, flags, struct sockaddr __user *, addr, + int __user *, addr_len) { struct socket *sock; struct iovec iov; @@ -1725,8 +1726,8 @@ asmlinkage long sys_recv(int fd, void __user *ubuf, size_t size, * to pass the user mode parameter for the protocols to sort out. */ -asmlinkage long sys_setsockopt(int fd, int level, int optname, - char __user *optval, int optlen) +SYSCALL_DEFINE5(setsockopt, int, fd, int, level, int, optname, + char __user *, optval, int, optlen) { int err, fput_needed; struct socket *sock; @@ -1759,8 +1760,8 @@ out_put: * to pass a user mode parameter for the protocols to sort out. */ -asmlinkage long sys_getsockopt(int fd, int level, int optname, - char __user *optval, int __user *optlen) +SYSCALL_DEFINE5(getsockopt, int, fd, int, level, int, optname, + char __user *, optval, int __user *, optlen) { int err, fput_needed; struct socket *sock; @@ -1789,7 +1790,7 @@ out_put: * Shutdown a socket. */ -asmlinkage long sys_shutdown(int fd, int how) +SYSCALL_DEFINE2(shutdown, int, fd, int, how) { int err, fput_needed; struct socket *sock; @@ -1815,7 +1816,7 @@ asmlinkage long sys_shutdown(int fd, int how) * BSD sendmsg interface */ -asmlinkage long sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags) +SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags) { struct compat_msghdr __user *msg_compat = (struct compat_msghdr __user *)msg; @@ -1921,8 +1922,8 @@ out: * BSD recvmsg interface */ -asmlinkage long sys_recvmsg(int fd, struct msghdr __user *msg, - unsigned int flags) +SYSCALL_DEFINE3(recvmsg, int, fd, struct msghdr __user *, msg, + unsigned int, flags) { struct compat_msghdr __user *msg_compat = (struct compat_msghdr __user *)msg; @@ -2045,7 +2046,7 @@ static const unsigned char nargs[19]={ * it is set by the callees. */ -asmlinkage long sys_socketcall(int call, unsigned long __user *args) +SYSCALL_DEFINE2(socketcall, int, call, unsigned long __user *, args) { unsigned long a[6]; unsigned long a0, a1; diff --git a/net/sunrpc/Kconfig b/net/sunrpc/Kconfig new file mode 100644 index 00000000000..dcef600d0bf --- /dev/null +++ b/net/sunrpc/Kconfig @@ -0,0 +1,78 @@ +config SUNRPC + tristate + +config SUNRPC_GSS + tristate + +config SUNRPC_XPRT_RDMA + tristate + depends on SUNRPC && INFINIBAND && EXPERIMENTAL + default SUNRPC && INFINIBAND + help + This option allows the NFS client and server to support + an RDMA-enabled transport. + + To compile RPC client RDMA transport support as a module, + choose M here: the module will be called xprtrdma. + + If unsure, say N. + +config SUNRPC_REGISTER_V4 + bool "Register local RPC services via rpcbind v4 (EXPERIMENTAL)" + depends on SUNRPC && EXPERIMENTAL + default n + help + Sun added support for registering RPC services at an IPv6 + address by creating two new versions of the rpcbind protocol + (RFC 1833). + + This option enables support in the kernel RPC server for + registering kernel RPC services via version 4 of the rpcbind + protocol. If you enable this option, you must run a portmapper + daemon that supports rpcbind protocol version 4. + + Serving NFS over IPv6 from knfsd (the kernel's NFS server) + requires that you enable this option and use a portmapper that + supports rpcbind version 4. + + If unsure, say N to get traditional behavior (register kernel + RPC services using only rpcbind version 2). Distributions + using the legacy Linux portmapper daemon must say N here. + +config RPCSEC_GSS_KRB5 + tristate "Secure RPC: Kerberos V mechanism (EXPERIMENTAL)" + depends on SUNRPC && EXPERIMENTAL + select SUNRPC_GSS + select CRYPTO + select CRYPTO_MD5 + select CRYPTO_DES + select CRYPTO_CBC + help + Choose Y here to enable Secure RPC using the Kerberos version 5 + GSS-API mechanism (RFC 1964). + + Secure RPC calls with Kerberos require an auxiliary user-space + daemon which may be found in the Linux nfs-utils package + available from http://linux-nfs.org/. In addition, user-space + Kerberos support should be installed. + + If unsure, say N. + +config RPCSEC_GSS_SPKM3 + tristate "Secure RPC: SPKM3 mechanism (EXPERIMENTAL)" + depends on SUNRPC && EXPERIMENTAL + select SUNRPC_GSS + select CRYPTO + select CRYPTO_MD5 + select CRYPTO_DES + select CRYPTO_CAST5 + select CRYPTO_CBC + help + Choose Y here to enable Secure RPC using the SPKM3 public key + GSS-API mechansim (RFC 2025). + + Secure RPC calls with SPKM3 require an auxiliary userspace + daemon which may be found in the Linux nfs-utils package + available from http://linux-nfs.org/. + + If unsure, say N. diff --git a/net/tipc/bcast.h b/net/tipc/bcast.h index 5aa024b99c5..2f2d731bc1c 100644 --- a/net/tipc/bcast.h +++ b/net/tipc/bcast.h @@ -124,7 +124,7 @@ static inline int tipc_nmap_equal(struct tipc_node_map *nm_a, struct tipc_node_m static inline void tipc_nmap_diff(struct tipc_node_map *nm_a, struct tipc_node_map *nm_b, struct tipc_node_map *nm_diff) { - int stop = sizeof(nm_a->map) / sizeof(u32); + int stop = ARRAY_SIZE(nm_a->map); int w; int b; u32 map; diff --git a/net/wimax/debugfs.c b/net/wimax/debugfs.c index 87cf4430079..94d216a4640 100644 --- a/net/wimax/debugfs.c +++ b/net/wimax/debugfs.c @@ -28,17 +28,6 @@ #include "debug-levels.h" -/* Debug framework control of debug levels */ -struct d_level D_LEVEL[] = { - D_SUBMODULE_DEFINE(debugfs), - D_SUBMODULE_DEFINE(id_table), - D_SUBMODULE_DEFINE(op_msg), - D_SUBMODULE_DEFINE(op_reset), - D_SUBMODULE_DEFINE(op_rfkill), - D_SUBMODULE_DEFINE(stack), -}; -size_t D_LEVEL_SIZE = ARRAY_SIZE(D_LEVEL); - #define __debugfs_register(prefix, name, parent) \ do { \ result = d_level_register_debugfs(prefix, name, parent); \ diff --git a/net/wimax/stack.c b/net/wimax/stack.c index d4da92f8981..3869c032788 100644 --- a/net/wimax/stack.c +++ b/net/wimax/stack.c @@ -516,6 +516,19 @@ void wimax_dev_rm(struct wimax_dev *wimax_dev) } EXPORT_SYMBOL_GPL(wimax_dev_rm); + +/* Debug framework control of debug levels */ +struct d_level D_LEVEL[] = { + D_SUBMODULE_DEFINE(debugfs), + D_SUBMODULE_DEFINE(id_table), + D_SUBMODULE_DEFINE(op_msg), + D_SUBMODULE_DEFINE(op_reset), + D_SUBMODULE_DEFINE(op_rfkill), + D_SUBMODULE_DEFINE(stack), +}; +size_t D_LEVEL_SIZE = ARRAY_SIZE(D_LEVEL); + + struct genl_family wimax_gnl_family = { .id = GENL_ID_GENERATE, .name = "WiMAX", diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 4f877535e66..85c9034c59b 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -421,6 +421,31 @@ static u32 freq_max_bandwidth(const struct ieee80211_freq_range *freq_range, return 0; } +/** + * freq_in_rule_band - tells us if a frequency is in a frequency band + * @freq_range: frequency rule we want to query + * @freq_khz: frequency we are inquiring about + * + * This lets us know if a specific frequency rule is or is not relevant to + * a specific frequency's band. Bands are device specific and artificial + * definitions (the "2.4 GHz band" and the "5 GHz band"), however it is + * safe for now to assume that a frequency rule should not be part of a + * frequency's band if the start freq or end freq are off by more than 2 GHz. + * This resolution can be lowered and should be considered as we add + * regulatory rule support for other "bands". + **/ +static bool freq_in_rule_band(const struct ieee80211_freq_range *freq_range, + u32 freq_khz) +{ +#define ONE_GHZ_IN_KHZ 1000000 + if (abs(freq_khz - freq_range->start_freq_khz) <= (2 * ONE_GHZ_IN_KHZ)) + return true; + if (abs(freq_khz - freq_range->end_freq_khz) <= (2 * ONE_GHZ_IN_KHZ)) + return true; + return false; +#undef ONE_GHZ_IN_KHZ +} + /* Converts a country IE to a regulatory domain. A regulatory domain * structure has a lot of information which the IE doesn't yet have, * so for the other values we use upper max values as we will intersect @@ -473,6 +498,7 @@ static struct ieee80211_regdomain *country_ie_2_rd( * calculate the number of reg rules we will need. We will need one * for each channel subband */ while (country_ie_len >= 3) { + int end_channel = 0; struct ieee80211_country_ie_triplet *triplet = (struct ieee80211_country_ie_triplet *) country_ie; int cur_sub_max_channel = 0, cur_channel = 0; @@ -484,9 +510,25 @@ static struct ieee80211_regdomain *country_ie_2_rd( continue; } + /* 2 GHz */ + if (triplet->chans.first_channel <= 14) + end_channel = triplet->chans.first_channel + + triplet->chans.num_channels; + else + /* + * 5 GHz -- For example in country IEs if the first + * channel given is 36 and the number of channels is 4 + * then the individual channel numbers defined for the + * 5 GHz PHY by these parameters are: 36, 40, 44, and 48 + * and not 36, 37, 38, 39. + * + * See: http://tinyurl.com/11d-clarification + */ + end_channel = triplet->chans.first_channel + + (4 * (triplet->chans.num_channels - 1)); + cur_channel = triplet->chans.first_channel; - cur_sub_max_channel = ieee80211_channel_to_frequency( - cur_channel + triplet->chans.num_channels); + cur_sub_max_channel = end_channel; /* Basic sanity check */ if (cur_sub_max_channel < cur_channel) @@ -538,6 +580,7 @@ static struct ieee80211_regdomain *country_ie_2_rd( /* This time around we fill in the rd */ while (country_ie_len >= 3) { + int end_channel = 0; struct ieee80211_country_ie_triplet *triplet = (struct ieee80211_country_ie_triplet *) country_ie; struct ieee80211_reg_rule *reg_rule = NULL; @@ -559,6 +602,14 @@ static struct ieee80211_regdomain *country_ie_2_rd( reg_rule->flags = flags; + /* 2 GHz */ + if (triplet->chans.first_channel <= 14) + end_channel = triplet->chans.first_channel + + triplet->chans.num_channels; + else + end_channel = triplet->chans.first_channel + + (4 * (triplet->chans.num_channels - 1)); + /* The +10 is since the regulatory domain expects * the actual band edge, not the center of freq for * its start and end freqs, assuming 20 MHz bandwidth on @@ -568,8 +619,7 @@ static struct ieee80211_regdomain *country_ie_2_rd( triplet->chans.first_channel) - 10); freq_range->end_freq_khz = MHZ_TO_KHZ(ieee80211_channel_to_frequency( - triplet->chans.first_channel + - triplet->chans.num_channels) + 10); + end_channel) + 10); /* Large arbitrary values, we intersect later */ /* Increment this if we ever support >= 40 MHz channels @@ -748,12 +798,23 @@ static u32 map_regdom_flags(u32 rd_flags) * this value to the maximum allowed bandwidth. * @reg_rule: the regulatory rule which we have for this frequency * - * Use this function to get the regulatory rule for a specific frequency. + * Use this function to get the regulatory rule for a specific frequency on + * a given wireless device. If the device has a specific regulatory domain + * it wants to follow we respect that unless a country IE has been received + * and processed already. + * + * Returns 0 if it was able to find a valid regulatory rule which does + * apply to the given center_freq otherwise it returns non-zero. It will + * also return -ERANGE if we determine the given center_freq does not even have + * a regulatory rule for a frequency range in the center_freq's band. See + * freq_in_rule_band() for our current definition of a band -- this is purely + * subjective and right now its 802.11 specific. */ static int freq_reg_info(u32 center_freq, u32 *bandwidth, const struct ieee80211_reg_rule **reg_rule) { int i; + bool band_rule_found = false; u32 max_bandwidth = 0; if (!cfg80211_regdomain) @@ -767,7 +828,15 @@ static int freq_reg_info(u32 center_freq, u32 *bandwidth, rr = &cfg80211_regdomain->reg_rules[i]; fr = &rr->freq_range; pr = &rr->power_rule; + + /* We only need to know if one frequency rule was + * was in center_freq's band, that's enough, so lets + * not overwrite it once found */ + if (!band_rule_found) + band_rule_found = freq_in_rule_band(fr, center_freq); + max_bandwidth = freq_max_bandwidth(fr, center_freq); + if (max_bandwidth && *bandwidth <= max_bandwidth) { *reg_rule = rr; *bandwidth = max_bandwidth; @@ -775,23 +844,64 @@ static int freq_reg_info(u32 center_freq, u32 *bandwidth, } } + if (!band_rule_found) + return -ERANGE; + return !max_bandwidth; } -static void handle_channel(struct ieee80211_channel *chan) +static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band, + unsigned int chan_idx) { int r; - u32 flags = chan->orig_flags; + u32 flags; u32 max_bandwidth = 0; const struct ieee80211_reg_rule *reg_rule = NULL; const struct ieee80211_power_rule *power_rule = NULL; + struct ieee80211_supported_band *sband; + struct ieee80211_channel *chan; + + sband = wiphy->bands[band]; + BUG_ON(chan_idx >= sband->n_channels); + chan = &sband->channels[chan_idx]; + + flags = chan->orig_flags; r = freq_reg_info(MHZ_TO_KHZ(chan->center_freq), &max_bandwidth, ®_rule); if (r) { - flags |= IEEE80211_CHAN_DISABLED; - chan->flags = flags; + /* This means no regulatory rule was found in the country IE + * with a frequency range on the center_freq's band, since + * IEEE-802.11 allows for a country IE to have a subset of the + * regulatory information provided in a country we ignore + * disabling the channel unless at least one reg rule was + * found on the center_freq's band. For details see this + * clarification: + * + * http://tinyurl.com/11d-clarification + */ + if (r == -ERANGE && + last_request->initiator == REGDOM_SET_BY_COUNTRY_IE) { +#ifdef CONFIG_CFG80211_REG_DEBUG + printk(KERN_DEBUG "cfg80211: Leaving channel %d MHz " + "intact on %s - no rule found in band on " + "Country IE\n", + chan->center_freq, wiphy_name(wiphy)); +#endif + } else { + /* In this case we know the country IE has at least one reg rule + * for the band so we respect its band definitions */ +#ifdef CONFIG_CFG80211_REG_DEBUG + if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE) + printk(KERN_DEBUG "cfg80211: Disabling " + "channel %d MHz on %s due to " + "Country IE\n", + chan->center_freq, wiphy_name(wiphy)); +#endif + flags |= IEEE80211_CHAN_DISABLED; + chan->flags = flags; + } return; } @@ -808,12 +918,16 @@ static void handle_channel(struct ieee80211_channel *chan) chan->max_power = (int) MBM_TO_DBM(power_rule->max_eirp); } -static void handle_band(struct ieee80211_supported_band *sband) +static void handle_band(struct wiphy *wiphy, enum ieee80211_band band) { - int i; + unsigned int i; + struct ieee80211_supported_band *sband; + + BUG_ON(!wiphy->bands[band]); + sband = wiphy->bands[band]; for (i = 0; i < sband->n_channels; i++) - handle_channel(&sband->channels[i]); + handle_channel(wiphy, band, i); } static bool ignore_reg_update(struct wiphy *wiphy, enum reg_set_by setby) @@ -840,7 +954,7 @@ void wiphy_update_regulatory(struct wiphy *wiphy, enum reg_set_by setby) enum ieee80211_band band; for (band = 0; band < IEEE80211_NUM_BANDS; band++) { if (wiphy->bands[band]) - handle_band(wiphy->bands[band]); + handle_band(wiphy, band); if (wiphy->reg_notifier) wiphy->reg_notifier(wiphy, setby); } @@ -1170,7 +1284,7 @@ static void reg_country_ie_process_debug( if (intersected_rd) { printk(KERN_DEBUG "cfg80211: We intersect both of these " "and get:\n"); - print_regdomain_info(rd); + print_regdomain_info(intersected_rd); return; } printk(KERN_DEBUG "cfg80211: Intersection between both failed\n"); diff --git a/net/xfrm/xfrm_ipcomp.c b/net/xfrm/xfrm_ipcomp.c index c609a4b98e1..42cd18391f4 100644 --- a/net/xfrm/xfrm_ipcomp.c +++ b/net/xfrm/xfrm_ipcomp.c @@ -63,7 +63,6 @@ static int ipcomp_decompress(struct xfrm_state *x, struct sk_buff *skb) if (len > skb_tailroom(skb)) len = skb_tailroom(skb); - skb->truesize += len; __skb_put(skb, len); len += plen; |