diff options
-rw-r--r-- | include/net/netfilter/nf_nat.h | 2 | ||||
-rw-r--r-- | net/netfilter/nf_nat_core.c | 37 | ||||
-rw-r--r-- | net/netfilter/nf_nat_proto.c | 38 |
3 files changed, 38 insertions, 39 deletions
diff --git a/include/net/netfilter/nf_nat.h b/include/net/netfilter/nf_nat.h index 0d412dd63707..987111ae5240 100644 --- a/include/net/netfilter/nf_nat.h +++ b/include/net/netfilter/nf_nat.h @@ -104,8 +104,6 @@ unsigned int nf_nat_inet_fn(void *priv, struct sk_buff *skb, const struct nf_hook_state *state); -int nf_xfrm_me_harder(struct net *n, struct sk_buff *s, unsigned int family); - static inline int nf_nat_initialized(struct nf_conn *ct, enum nf_nat_manip_type manip) { diff --git a/net/netfilter/nf_nat_core.c b/net/netfilter/nf_nat_core.c index b7c3c902290f..7de595ead06a 100644 --- a/net/netfilter/nf_nat_core.c +++ b/net/netfilter/nf_nat_core.c @@ -146,43 +146,6 @@ static void __nf_nat_decode_session(struct sk_buff *skb, struct flowi *fl) return; } } - -int nf_xfrm_me_harder(struct net *net, struct sk_buff *skb, unsigned int family) -{ - struct flowi fl; - unsigned int hh_len; - struct dst_entry *dst; - struct sock *sk = skb->sk; - int err; - - err = xfrm_decode_session(skb, &fl, family); - if (err < 0) - return err; - - dst = skb_dst(skb); - if (dst->xfrm) - dst = ((struct xfrm_dst *)dst)->route; - if (!dst_hold_safe(dst)) - return -EHOSTUNREACH; - - if (sk && !net_eq(net, sock_net(sk))) - sk = NULL; - - dst = xfrm_lookup(net, dst, &fl, sk, 0); - if (IS_ERR(dst)) - return PTR_ERR(dst); - - skb_dst_drop(skb); - skb_dst_set(skb, dst); - - /* Change in oif may mean change in hh_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 -ENOMEM; - return 0; -} -EXPORT_SYMBOL(nf_xfrm_me_harder); #endif /* CONFIG_XFRM */ /* We keep an extra hash for each conntrack, for fast searching. */ diff --git a/net/netfilter/nf_nat_proto.c b/net/netfilter/nf_nat_proto.c index 4731d21fc3ad..48cc60084d28 100644 --- a/net/netfilter/nf_nat_proto.c +++ b/net/netfilter/nf_nat_proto.c @@ -659,6 +659,44 @@ nf_nat_ipv4_pre_routing(void *priv, struct sk_buff *skb, return ret; } +#ifdef CONFIG_XFRM +static int nf_xfrm_me_harder(struct net *net, struct sk_buff *skb, unsigned int family) +{ + struct sock *sk = skb->sk; + struct dst_entry *dst; + unsigned int hh_len; + struct flowi fl; + int err; + + err = xfrm_decode_session(skb, &fl, family); + if (err < 0) + return err; + + dst = skb_dst(skb); + if (dst->xfrm) + dst = ((struct xfrm_dst *)dst)->route; + if (!dst_hold_safe(dst)) + return -EHOSTUNREACH; + + if (sk && !net_eq(net, sock_net(sk))) + sk = NULL; + + dst = xfrm_lookup(net, dst, &fl, sk, 0); + if (IS_ERR(dst)) + return PTR_ERR(dst); + + skb_dst_drop(skb); + skb_dst_set(skb, dst); + + /* Change in oif may mean change in hh_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 -ENOMEM; + return 0; +} +#endif + static unsigned int nf_nat_ipv4_local_in(void *priv, struct sk_buff *skb, const struct nf_hook_state *state) |