From: Jason Xing <kerneljasonxing@gmail•com>
To: davem@davemloft•net, edumazet@google•com, kuba@kernel•org,
pabeni@redhat•com, dsahern@kernel•org
Cc: netdev@vger•kernel.org, Jason Xing <kernelxing@tencent•com>
Subject: [PATCH net-next 5/6] tcp: rstreason: introduce SK_RST_REASON_TCP_TIMEOUT for active reset
Date: Tue, 30 Jul 2024 21:35:12 +0800 [thread overview]
Message-ID: <20240730133513.99986-6-kerneljasonxing@gmail.com> (raw)
In-Reply-To: <20240730133513.99986-1-kerneljasonxing@gmail.com>
From: Jason Xing <kernelxing@tencent•com>
Only when user sets TCP_USER_TIMEOUT option and there is no left
chance to proceed, we will send an RST to the other side.
Signed-off-by: Jason Xing <kernelxing@tencent•com>
---
include/net/rstreason.h | 7 +++++++
net/ipv4/tcp_timer.c | 2 +-
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/include/net/rstreason.h b/include/net/rstreason.h
index fecaa57f1634..ca10aaebd768 100644
--- a/include/net/rstreason.h
+++ b/include/net/rstreason.h
@@ -21,6 +21,7 @@
FN(TCP_ABORT_ON_LINGER) \
FN(TCP_ABORT_ON_MEMORY) \
FN(TCP_STATE) \
+ FN(TCP_TIMEOUT) \
FN(MPTCP_RST_EUNSPEC) \
FN(MPTCP_RST_EMPTCP) \
FN(MPTCP_RST_ERESOURCE) \
@@ -108,6 +109,12 @@ enum sk_rst_reason {
* Please see RFC 793 for all possible reset conditions
*/
SK_RST_REASON_TCP_STATE,
+ /**
+ * @SK_RST_REASON_TCP_TIMEOUT: time to timeout
+ * When user sets TCP_USER_TIMEOUT options and run out of all the
+ * chance, we have to reset the connection
+ */
+ SK_RST_REASON_TCP_TIMEOUT,
/* Copy from include/uapi/linux/mptcp.h.
* These reset fields will not be changed since they adhere to
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 3910f6d8614e..bd403300e4c4 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -807,7 +807,7 @@ static void tcp_keepalive_timer (struct timer_list *t)
(user_timeout == 0 &&
icsk->icsk_probes_out >= keepalive_probes(tp))) {
tcp_send_active_reset(sk, GFP_ATOMIC,
- SK_RST_REASON_NOT_SPECIFIED);
+ SK_RST_REASON_TCP_TIMEOUT);
tcp_write_err(sk);
goto out;
}
--
2.37.3
next prev parent reply other threads:[~2024-07-30 13:35 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-30 13:35 [PATCH net-next 0/6] tcp: completely support active reset Jason Xing
2024-07-30 13:35 ` [PATCH net-next 1/6] tcp: rstreason: introduce SK_RST_REASON_TCP_ABORT_ON_CLOSE for " Jason Xing
2024-07-30 13:35 ` [PATCH net-next 2/6] tcp: rstreason: introduce SK_RST_REASON_TCP_ABORT_ON_LINGER " Jason Xing
2024-07-30 13:35 ` [PATCH net-next 3/6] tcp: rstreason: introduce SK_RST_REASON_TCP_ABORT_ON_MEMORY " Jason Xing
2024-07-30 13:35 ` [PATCH net-next 4/6] tcp: rstreason: introduce SK_RST_REASON_TCP_STATE " Jason Xing
2024-07-30 20:06 ` Kuniyuki Iwashima
2024-07-31 0:02 ` Jason Xing
2024-07-30 13:35 ` Jason Xing [this message]
2024-07-30 20:00 ` [PATCH net-next 5/6] tcp: rstreason: introduce SK_RST_REASON_TCP_TIMEOUT " Kuniyuki Iwashima
2024-07-31 0:09 ` Jason Xing
2024-07-30 13:35 ` [PATCH net-next 6/6] tcp: rstreason: let it work finally in tcp_send_active_reset() Jason Xing
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240730133513.99986-6-kerneljasonxing@gmail.com \
--to=kerneljasonxing@gmail$(echo .)com \
--cc=davem@davemloft$(echo .)net \
--cc=dsahern@kernel$(echo .)org \
--cc=edumazet@google$(echo .)com \
--cc=kernelxing@tencent$(echo .)com \
--cc=kuba@kernel$(echo .)org \
--cc=netdev@vger$(echo .)kernel.org \
--cc=pabeni@redhat$(echo .)com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox