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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-09-03 10:01:44 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-09-03 10:01:44 -0700 |
| commit | 01b944fe1cd4e21a2a9ed51adbdbafe2d5e905ba (patch) | |
| tree | 85f506cf9fce3d8fd47cf624dd8698472bffc13f /net/xfrm/xfrm_output.c | |
| parent | e51e38494a8ecc18650efb0c840600637891de2c (diff) | |
| parent | 58f1eae48e5372200553de07b5ecc7574803ee91 (diff) | |
Merge branch 'next' into for-linus
Prepare first round of input updates for 4.3 merge window.
Diffstat (limited to 'net/xfrm/xfrm_output.c')
| -rw-r--r-- | net/xfrm/xfrm_output.c | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c index 7c532856b398..68ada2ca4b60 100644 --- a/net/xfrm/xfrm_output.c +++ b/net/xfrm/xfrm_output.c @@ -19,7 +19,7 @@ #include <net/dst.h> #include <net/xfrm.h> -static int xfrm_output2(struct sk_buff *skb); +static int xfrm_output2(struct sock *sk, struct sk_buff *skb); static int xfrm_skb_check_space(struct sk_buff *skb) { @@ -38,6 +38,18 @@ static int xfrm_skb_check_space(struct sk_buff *skb) return pskb_expand_head(skb, nhead, ntail, GFP_ATOMIC); } +/* Children define the path of the packet through the + * Linux networking. Thus, destinations are stackable. + */ + +static struct dst_entry *skb_dst_pop(struct sk_buff *skb) +{ + struct dst_entry *child = dst_clone(skb_dst(skb)->child); + + skb_dst_drop(skb); + return child; +} + static int xfrm_output_one(struct sk_buff *skb, int err) { struct dst_entry *dst = skb_dst(skb); @@ -130,7 +142,7 @@ int xfrm_output_resume(struct sk_buff *skb, int err) return dst_output(skb); err = nf_hook(skb_dst(skb)->ops->family, - NF_INET_POST_ROUTING, skb, + NF_INET_POST_ROUTING, skb->sk, skb, NULL, skb_dst(skb)->dev, xfrm_output2); if (unlikely(err != 1)) goto out; @@ -144,12 +156,12 @@ out: } EXPORT_SYMBOL_GPL(xfrm_output_resume); -static int xfrm_output2(struct sk_buff *skb) +static int xfrm_output2(struct sock *sk, struct sk_buff *skb) { return xfrm_output_resume(skb, 1); } -static int xfrm_output_gso(struct sk_buff *skb) +static int xfrm_output_gso(struct sock *sk, struct sk_buff *skb) { struct sk_buff *segs; @@ -165,7 +177,7 @@ static int xfrm_output_gso(struct sk_buff *skb) int err; segs->next = NULL; - err = xfrm_output2(segs); + err = xfrm_output2(sk, segs); if (unlikely(err)) { kfree_skb_list(nskb); @@ -178,13 +190,13 @@ static int xfrm_output_gso(struct sk_buff *skb) return 0; } -int xfrm_output(struct sk_buff *skb) +int xfrm_output(struct sock *sk, struct sk_buff *skb) { struct net *net = dev_net(skb_dst(skb)->dev); int err; if (skb_is_gso(skb)) - return xfrm_output_gso(skb); + return xfrm_output_gso(sk, skb); if (skb->ip_summed == CHECKSUM_PARTIAL) { err = skb_checksum_help(skb); @@ -195,7 +207,7 @@ int xfrm_output(struct sk_buff *skb) } } - return xfrm_output2(skb); + return xfrm_output2(sk, skb); } EXPORT_SYMBOL_GPL(xfrm_output); |