diff options
| author | Yuchung Cheng <ycheng@google.com> | 2013-08-08 23:06:22 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-08-10 09:35:33 +0200 |
| commit | 149479d019e06df5a7f4096f95c00cfb1380309c (patch) | |
| tree | 693d54479d3377a5b4bd7ddfb61394f26706defd /include/net | |
| parent | pptp: fix sparse pointer warning (diff) | |
| download | linux-149479d019e06df5a7f4096f95c00cfb1380309c.tar.xz linux-149479d019e06df5a7f4096f95c00cfb1380309c.zip | |
tcp: add server ip to encrypt cookie in fast open
Encrypt the cookie with both server and client IPv4 addresses,
such that multi-homed server will grant different cookies
based on both the source and destination IPs. No client change
is needed since cookie is opaque to the client.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/tcp.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index 27b652f379ef..09cb5c11ceea 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -1300,7 +1300,8 @@ void tcp_free_fastopen_req(struct tcp_sock *tp); extern struct tcp_fastopen_context __rcu *tcp_fastopen_ctx; int tcp_fastopen_reset_cipher(void *key, unsigned int len); -void tcp_fastopen_cookie_gen(__be32 addr, struct tcp_fastopen_cookie *foc); +extern void tcp_fastopen_cookie_gen(__be32 src, __be32 dst, + struct tcp_fastopen_cookie *foc); #define TCP_FASTOPEN_KEY_LENGTH 16 |