diff options
| -rw-r--r-- | include/net/ip6_fib.h | 4 | ||||
| -rw-r--r-- | net/ipv6/inet6_connection_sock.c | 39 |
2 files changed, 41 insertions, 2 deletions
diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h index c48ea873f1e0..857821360bb6 100644 --- a/include/net/ip6_fib.h +++ b/include/net/ip6_fib.h @@ -105,6 +105,10 @@ struct rt6_info struct rt6key rt6i_src; u8 rt6i_protocol; + +#ifdef CONFIG_XFRM + u32 rt6i_flow_cache_genid; +#endif }; static inline struct inet6_dev *ip6_dst_idev(struct dst_entry *dst) diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c index 116f94a49071..25b931709749 100644 --- a/net/ipv6/inet6_connection_sock.c +++ b/net/ipv6/inet6_connection_sock.c @@ -139,6 +139,41 @@ void inet6_csk_addr2sockaddr(struct sock *sk, struct sockaddr * uaddr) EXPORT_SYMBOL_GPL(inet6_csk_addr2sockaddr); +static inline +void __inet6_csk_dst_store(struct sock *sk, struct dst_entry *dst, + struct in6_addr *daddr, struct in6_addr *saddr) +{ + __ip6_dst_store(sk, dst, daddr, saddr); + +#ifdef CONFIG_XFRM + if (dst) { + struct rt6_info *rt = (struct rt6_info *)dst; + rt->rt6i_flow_cache_genid = atomic_read(&flow_cache_genid); + } +#endif +} + +static inline +struct dst_entry *__inet6_csk_dst_check(struct sock *sk, u32 cookie) +{ + struct dst_entry *dst; + + dst = __sk_dst_check(sk, cookie); + +#ifdef CONFIG_XFRM + if (dst) { + struct rt6_info *rt = (struct rt6_info *)dst; + if (rt->rt6i_flow_cache_genid != atomic_read(&flow_cache_genid)) { + sk->sk_dst_cache = NULL; + dst_release(dst); + dst = NULL; + } + } +#endif + + return dst; +} + int inet6_csk_xmit(struct sk_buff *skb, int ipfragok) { struct sock *sk = skb->sk; @@ -166,7 +201,7 @@ int inet6_csk_xmit(struct sk_buff *skb, int ipfragok) final_p = &final; } - dst = __sk_dst_check(sk, np->dst_cookie); + dst = __inet6_csk_dst_check(sk, np->dst_cookie); if (dst == NULL) { int err = ip6_dst_lookup(sk, &dst, &fl); @@ -186,7 +221,7 @@ int inet6_csk_xmit(struct sk_buff *skb, int ipfragok) return err; } - __ip6_dst_store(sk, dst, NULL, NULL); + __inet6_csk_dst_store(sk, dst, NULL, NULL); } skb->dst = dst_clone(dst); |