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Date: Mon, 12 Feb 2024 13:25:08 +0800
From: Jason Xing <kerneljasonxing@...il.com>
To: davem@...emloft.net,
edumazet@...gle.com,
kuba@...nel.org,
pabeni@...hat.com,
dsahern@...nel.org
Cc: netdev@...r.kernel.org,
kerneljasonxing@...il.com,
Jason Xing <kernelxing@...cent.com>
Subject: [PATCH net-next v3 0/5] introduce drop reasons for cookie check
From: Jason Xing <kernelxing@...cent.com>
When I was debugging the reason about why the skb should be dropped in
syn cookie mode, I found out that this NOT_SPECIFIED reason is too
general. Thus I decided to refine it.
Previously I submitted one patch serie which is too large/risky, so I
split that one serie into two seires. For another one, I will submit
later.
Summary
1. introduce all the dropreasons we need, [1/5] patch.
2. use new dropreasons in ipv4 cookie check, [2/5],[3/5] patch.
3. use new dropreasons ipv6 cookie check, [4/5],[5/5] patch.
v3:
Link: https://lore.kernel.org/all/CANn89iK40SoyJ8fS2U5kp3pDruo=zfQNPL-ppOF+LYaS9z-MVA@mail.gmail.com/
1. Split that patch into some smaller ones as suggested by Eric.
v2:
Link: https://lore.kernel.org/all/20240204104601.55760-1-kerneljasonxing@gmail.com/
1. change the title of 2/2 patch.
2. fix some warnings checkpatch tool showed before.
3. use return value instead of adding more parameters suggested by Eric.
Jason Xing (5):
tcp: add dropreasons definitions and prepare for cookie check
tcp: directly drop skb in cookie check for ipv4
tcp: use drop reasons in cookie check for ipv4
tcp: directly drop skb in cookie check for ipv6
tcp: use drop reasons in cookie check for ipv6
include/net/dropreason-core.h | 21 +++++++++++++++++++++
net/ipv4/syncookies.c | 20 ++++++++++++++++----
net/ipv4/tcp_ipv4.c | 2 +-
net/ipv6/syncookies.c | 18 +++++++++++++++---
net/ipv6/tcp_ipv6.c | 7 +++++--
5 files changed, 58 insertions(+), 10 deletions(-)
--
2.37.3
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