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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-09-19 14:48:04 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-09-19 14:48:04 (GMT) |
| commit | 1f0772fe27aa03764478bd9d3a4cbad417a854cc (patch) | |
| tree | a67c60edbcbb33a7e0706299dbaabf53e66bd193 | |
| parent | 6bf3b0dc32a27c6e1ba3dcdaf428a043113cd389 (diff) | |
| parent | f779b2d60ab95c17f1e025778ed0df3ec2f05d75 (diff) | |
| download | linux-1f0772fe27aa03764478bd9d3a4cbad417a854cc.tar.xz | |
Merge git://github.com/davem330/net
* git://github.com/davem330/net:
tcp: fix validation of D-SACK
tcp: fix build error if !CONFIG_SYN_COOKIES
| -rw-r--r-- | include/net/tcp.h | 19 | ||||
| -rw-r--r-- | net/ipv4/tcp_input.c | 2 |
2 files changed, 19 insertions, 2 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index e9b48b0..acc620a 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -431,17 +431,34 @@ extern int tcp_disconnect(struct sock *sk, int flags); extern __u32 syncookie_secret[2][16-4+SHA_DIGEST_WORDS]; extern struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb, struct ip_options *opt); +#ifdef CONFIG_SYN_COOKIES extern __u32 cookie_v4_init_sequence(struct sock *sk, struct sk_buff *skb, __u16 *mss); +#else +static inline __u32 cookie_v4_init_sequence(struct sock *sk, + struct sk_buff *skb, + __u16 *mss) +{ + return 0; +} +#endif extern __u32 cookie_init_timestamp(struct request_sock *req); extern bool cookie_check_timestamp(struct tcp_options_received *opt, bool *); /* From net/ipv6/syncookies.c */ extern struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb); +#ifdef CONFIG_SYN_COOKIES extern __u32 cookie_v6_init_sequence(struct sock *sk, struct sk_buff *skb, __u16 *mss); - +#else +static inline __u32 cookie_v6_init_sequence(struct sock *sk, + struct sk_buff *skb, + __u16 *mss) +{ + return 0; +} +#endif /* tcp_output.c */ extern void __tcp_push_pending_frames(struct sock *sk, unsigned int cur_mss, diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index ea0d218..21fab3e 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -1124,7 +1124,7 @@ static int tcp_is_sackblock_valid(struct tcp_sock *tp, int is_dsack, return 0; /* ...Then it's D-SACK, and must reside below snd_una completely */ - if (!after(end_seq, tp->snd_una)) + if (after(end_seq, tp->snd_una)) return 0; if (!before(start_seq, tp->undo_marker)) |