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authorHerbert Xu <herbert@gondor.apana.org.au>2007-11-13 21:43:11 -0800
committerDavid S. Miller <davem@davemloft.net>2008-01-28 14:53:48 -0800
commit862b82c6f960cc61274d370aa78ce1112f92a83e (patch)
tree51e252e1525dd7d02a695d428890a4c37fae2442 /net/ipv6
parentef76bc23ef2acf20c8f7f841a542d8ab74c827c6 (diff)
[IPSEC]: Merge most of the output path
As part of the work on asynchrnous cryptographic operations, we need to be able to resume from the spot where they occur. As such, it helps if we isolate them to one spot. This patch moves most of the remaining family-specific processing into the common output code. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/route.c1
-rw-r--r--net/ipv6/xfrm6_output.c77
-rw-r--r--net/ipv6/xfrm6_policy.c1
-rw-r--r--net/ipv6/xfrm6_state.c2
4 files changed, 11 insertions, 70 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index ac70e2d3b10..4ef2cfaa346 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -113,6 +113,7 @@ static struct dst_ops ip6_dst_ops = {
.negative_advice = ip6_negative_advice,
.link_failure = ip6_link_failure,
.update_pmtu = ip6_rt_update_pmtu,
+ .local_out = ip6_local_out,
.entry_size = sizeof(struct rt6_info),
};
diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index 0f0ff51f6db..a0a924991c4 100644
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -66,6 +66,9 @@ int xfrm6_prepare_output(struct xfrm_state *x, struct sk_buff *skb)
return err;
memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));
+#ifdef CONFIG_NETFILTER
+ IP6CB(skb)->flags |= IP6SKB_XFRM_TRANSFORMED;
+#endif
skb->protocol = htons(ETH_P_IPV6);
@@ -73,80 +76,14 @@ int xfrm6_prepare_output(struct xfrm_state *x, struct sk_buff *skb)
}
EXPORT_SYMBOL(xfrm6_prepare_output);
-static inline int xfrm6_output_one(struct sk_buff *skb)
-{
- int err;
-
- err = xfrm_output(skb);
- if (err)
- goto error_nolock;
-
- IP6CB(skb)->flags |= IP6SKB_XFRM_TRANSFORMED;
- err = 0;
-
-out_exit:
- return err;
-error_nolock:
- kfree_skb(skb);
- goto out_exit;
-}
-
-static int xfrm6_output_finish2(struct sk_buff *skb)
-{
- int err;
-
- while (likely((err = xfrm6_output_one(skb)) == 0)) {
- nf_reset(skb);
-
- err = __ip6_local_out(skb);
- if (unlikely(err != 1))
- break;
-
- if (!skb->dst->xfrm)
- return dst_output(skb);
-
- err = nf_hook(PF_INET6, NF_IP6_POST_ROUTING, skb, NULL,
- skb->dst->dev, xfrm6_output_finish2);
- if (unlikely(err != 1))
- break;
- }
-
- return err;
-}
-
static int xfrm6_output_finish(struct sk_buff *skb)
{
- struct sk_buff *segs;
-
- if (!skb_is_gso(skb))
- return xfrm6_output_finish2(skb);
+#ifdef CONFIG_NETFILTER
+ IP6CB(skb)->flags |= IP6SKB_XFRM_TRANSFORMED;
+#endif
skb->protocol = htons(ETH_P_IPV6);
- segs = skb_gso_segment(skb, 0);
- kfree_skb(skb);
- if (unlikely(IS_ERR(segs)))
- return PTR_ERR(segs);
-
- do {
- struct sk_buff *nskb = segs->next;
- int err;
-
- segs->next = NULL;
- err = xfrm6_output_finish2(segs);
-
- if (unlikely(err)) {
- while ((segs = nskb)) {
- nskb = segs->next;
- segs->next = NULL;
- kfree_skb(segs);
- }
- return err;
- }
-
- segs = nskb;
- } while (segs);
-
- return 0;
+ return xfrm_output(skb);
}
int xfrm6_output(struct sk_buff *skb)
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index 63932c5fd3c..a31dd531e19 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -252,6 +252,7 @@ static struct dst_ops xfrm6_dst_ops = {
.update_pmtu = xfrm6_update_pmtu,
.destroy = xfrm6_dst_destroy,
.ifdown = xfrm6_dst_ifdown,
+ .local_out = __ip6_local_out,
.gc_thresh = 1024,
.entry_size = sizeof(struct xfrm_dst),
};
diff --git a/net/ipv6/xfrm6_state.c b/net/ipv6/xfrm6_state.c
index 90fef0a4726..bb09e85a336 100644
--- a/net/ipv6/xfrm6_state.c
+++ b/net/ipv6/xfrm6_state.c
@@ -14,6 +14,7 @@
#include <net/xfrm.h>
#include <linux/pfkeyv2.h>
#include <linux/ipsec.h>
+#include <linux/netfilter_ipv6.h>
#include <net/dsfield.h>
#include <net/ipv6.h>
#include <net/addrconf.h>
@@ -189,6 +190,7 @@ static struct xfrm_state_afinfo xfrm6_state_afinfo = {
.family = AF_INET6,
.proto = IPPROTO_IPV6,
.eth_proto = htons(ETH_P_IPV6),
+ .nf_post_routing = NF_IP6_POST_ROUTING,
.owner = THIS_MODULE,
.init_tempsel = __xfrm6_init_tempsel,
.tmpl_sort = __xfrm6_tmpl_sort,