Re: [PATCH net-next v4 0/2] tcp: add a new TW_PAWS drop reason
From: patchwork-bot+netdevbpf
Date: Thu Apr 10 2025 - 22:21:01 EST
Hello:
This series was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@xxxxxxxxxx>:
On Wed, 9 Apr 2025 19:26:03 +0800 you wrote:
> Devices in the networking path, such as firewalls, NATs, or routers, which
> can perform SNAT or DNAT, use addresses from their own limited address
> pools to masquerade the source address during forwarding, causing PAWS
> verification to fail more easily under TW status.
>
> Currently, packet loss statistics for PAWS can only be viewed through MIB,
> which is a global metric and cannot be precisely obtained through tracing
> to get the specific 4-tuple of the dropped packet. In the past, we had to
> use kprobe ret to retrieve relevant skb information from
> tcp_timewait_state_process().
>
> [...]
Here is the summary with links:
- [net-next,v4,1/2] tcp: add TCP_RFC7323_TW_PAWS drop reason
https://git.kernel.org/netdev/net-next/c/04271411121a
- [net-next,v4,2/2] tcp: add LINUX_MIB_PAWS_TW_REJECTED counter
https://git.kernel.org/netdev/net-next/c/c449d5f3a3d7
You are awesome, thank you!
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