diff options
author | Jason Xing <kernelxing@tencent.com> | 2024-04-25 06:13:34 +0300 |
---|---|---|
committer | Paolo Abeni <pabeni@redhat.com> | 2024-04-26 16:34:00 +0300 |
commit | 5cb2cb3cb20cb2618c877a50db3c013449cc4e75 (patch) | |
tree | f2b2bd51d7b52fedb1b8746bd44774151c158122 /net/ipv4 | |
parent | 15fd021bc4270273d8f4b7f58fdda8a16214a377 (diff) | |
download | linux-5cb2cb3cb20cb2618c877a50db3c013449cc4e75.tar.xz |
net: introduce rstreason to detect why the RST is sent
Add a new standalone file for the easy future extension to support
both active reset and passive reset in the TCP/DCCP/MPTCP protocols.
This patch only does the preparations for reset reason mechanism,
nothing else changes.
The reset reasons are divided into three parts:
1) reuse drop reasons for passive reset in TCP
2) our own independent reasons which aren't relying on other reasons at all
3) reuse MP_TCPRST option for MPTCP
The benefits of a standalone reset reason are listed here:
1) it can cover more than one case, such as reset reasons in MPTCP,
active reset reasons.
2) people can easily/fastly understand and maintain this mechanism.
3) we get unified format of output with prefix stripped.
4) more new reset reasons are on the way
...
I will implement the basic codes of active/passive reset reason in
those three protocols, which are not complete for this moment. For
passive reset part in TCP, I only introduce the NO_SOCKET common case
which could be set as an example.
After this series applied, it will have the ability to open a new
gate to let other people contribute more reasons into it :)
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Acked-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'net/ipv4')
0 files changed, 0 insertions, 0 deletions