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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2011-09-18 21:02:55 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-09-18 21:48:01 -0400 |
| commit | e05c82d3666119075615fdbf6abca0266344f27b (patch) | |
| tree | bab1ded7da3e983c69f833ab2ad915f03d07000e /include | |
| parent | b0e7031ac08fa0aa242531c8d9a0cf9ae8ee276d (diff) | |
| download | linux-e05c82d3666119075615fdbf6abca0266344f27b.tar.gz linux-e05c82d3666119075615fdbf6abca0266344f27b.tar.bz2 linux-e05c82d3666119075615fdbf6abca0266344f27b.zip | |
tcp: fix build error if !CONFIG_SYN_COOKIES
commit 946cedccbd7387 (tcp: Change possible SYN flooding messages)
added a build error if CONFIG_SYN_COOKIES=n
Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/tcp.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index e9b48b094683..acc620a4a45f 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, |