diff options
| author | Yuchung Cheng | 2012-07-19 08:43:11 +0200 |
|---|---|---|
| committer | David S. Miller | 2012-07-19 20:02:03 +0200 |
| commit | 67da22d23fa6f3324e03bcd0580b914b2e4afbf3 (patch) | |
| tree | e794826d1dd7e30cf0885cbe93f22bc050c62359 /include/net/tcp.h | |
| parent | net-tcp: Fast Open client - detecting SYN-data drops (diff) | |
| download | kernel-qcow2-linux-67da22d23fa6f3324e03bcd0580b914b2e4afbf3.tar.gz kernel-qcow2-linux-67da22d23fa6f3324e03bcd0580b914b2e4afbf3.tar.xz kernel-qcow2-linux-67da22d23fa6f3324e03bcd0580b914b2e4afbf3.zip | |
net-tcp: Fast Open client - cookie-less mode
In trusted networks, e.g., intranet, data-center, the client does not
need to use Fast Open cookie to mitigate DoS attacks. In cookie-less
mode, sendmsg() with MSG_FASTOPEN flag will send SYN-data regardless
of cookie availability.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/tcp.h')
| -rw-r--r-- | include/net/tcp.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index e07878d246aa..bc7c134ec054 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -214,6 +214,7 @@ extern void tcp_time_wait(struct sock *sk, int state, int timeo); /* Bit Flags for sysctl_tcp_fastopen */ #define TFO_CLIENT_ENABLE 1 +#define TFO_CLIENT_NO_COOKIE 4 /* Data in SYN w/o cookie option */ extern struct inet_timewait_death_row tcp_death_row; |