netdev - Re: [PATCH bpf] bpf, sockmap: Reject sk_msg egress redirects to non-TCP sockets

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Date: Fri, 29 Sep 2023 15:20:25 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Jakub Sitnicki <jakub@...udflare.com>
Cc: bpf@...r.kernel.org, netdev@...r.kernel.org, kernel-team@...udflare.com,
 ast@...nel.org, daniel@...earbox.net, andrii@...nel.org,
 john.fastabend@...il.com, cong.wang@...edance.com
Subject: Re: [PATCH bpf] bpf,
 sockmap: Reject sk_msg egress redirects to non-TCP sockets

Hello:

This patch was applied to bpf/bpf.git (master)
by Daniel Borkmann <daniel@...earbox.net>:

On Wed, 20 Sep 2023 12:20:55 +0200 you wrote:
> With a SOCKMAP/SOCKHASH map and an sk_msg program user can steer messages
> sent from one TCP socket (s1) to actually egress from another TCP
> socket (s2):
> 
> tcp_bpf_sendmsg(s1)		// = sk_prot->sendmsg
>   tcp_bpf_send_verdict(s1)	// __SK_REDIRECT case
>     tcp_bpf_sendmsg_redir(s2)
>       tcp_bpf_push_locked(s2)
> 	tcp_bpf_push(s2)
> 	  tcp_rate_check_app_limited(s2) // expects tcp_sock
> 	  tcp_sendmsg_locked(s2)	 // ditto
> 
> [...]

Here is the summary with links:
  - [bpf] bpf, sockmap: Reject sk_msg egress redirects to non-TCP sockets
    https://git.kernel.org/bpf/bpf/c/b80e31baa436

You are awesome, thank you!
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