diff options
| author | Patrick McManus <mcmanus@ducksong.com> | 2008-03-21 16:33:01 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-03-21 16:33:01 -0700 |
| commit | ec3c0982a2dd1e671bad8e9d26c28dcba0039d87 (patch) | |
| tree | 11a3cd7c530e4225a4c3d4c3f3cc54eb7d2e0e4f /net/ipv4/tcp_timer.c | |
| parent | e4c78840284f3f51b1896cf3936d60a6033c4d2c (diff) | |
| download | blackbird-op-linux-ec3c0982a2dd1e671bad8e9d26c28dcba0039d87.tar.gz blackbird-op-linux-ec3c0982a2dd1e671bad8e9d26c28dcba0039d87.zip | |
[TCP]: TCP_DEFER_ACCEPT updates - process as established
Change TCP_DEFER_ACCEPT implementation so that it transitions a
connection to ESTABLISHED after handshake is complete instead of
leaving it in SYN-RECV until some data arrvies. Place connection in
accept queue when first data packet arrives from slow path.
Benefits:
- established connection is now reset if it never makes it
to the accept queue
- diagnostic state of established matches with the packet traces
showing completed handshake
- TCP_DEFER_ACCEPT timeouts are expressed in seconds and can now be
enforced with reasonable accuracy instead of rounding up to next
exponential back-off of syn-ack retry.
Signed-off-by: Patrick McManus <mcmanus@ducksong.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_timer.c')
| -rw-r--r-- | net/ipv4/tcp_timer.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c index 803d758a2b12..160d16f9f4fc 100644 --- a/net/ipv4/tcp_timer.c +++ b/net/ipv4/tcp_timer.c @@ -481,6 +481,11 @@ static void tcp_keepalive_timer (unsigned long data) goto death; } + if (tp->defer_tcp_accept.request && sk->sk_state == TCP_ESTABLISHED) { + tcp_send_active_reset(sk, GFP_ATOMIC); + goto death; + } + if (!sock_flag(sk, SOCK_KEEPOPEN) || sk->sk_state == TCP_CLOSE) goto out; |
