| commit | 0dd061a6a115f25132989cbd591a25afb2dee086 | [log] [tgz] |
|---|---|---|
| author | Geliang Tang <geliang.tang@suse.com> | Wed Aug 16 09:11:56 2023 +0800 |
| committer | Martin KaFai Lau <martin.lau@kernel.org> | Wed Aug 16 10:22:16 2023 -0700 |
| tree | 51f583e636e2bba81c9f2340f8a54ac3bcbafad9 | |
| parent | 053bbf9bff58864be880d7e9a5af586793dbb7de [diff] |
bpf: Add update_socket_protocol hook Add a hook named update_socket_protocol in __sys_socket(), for bpf progs to attach to and update socket protocol. One user case is to force legacy TCP apps to create and use MPTCP sockets instead of TCP ones. Define a fmod_ret set named bpf_mptcp_fmodret_ids, add the hook update_socket_protocol into this set, and register it in bpf_mptcp_kfunc_init(). Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/79 Acked-by: Matthieu Baerts <matthieu.baerts@tessares.net> Acked-by: Yonghong Song <yonghong.song@linux.dev> Signed-off-by: Geliang Tang <geliang.tang@suse.com> Link: https://lore.kernel.org/r/ac84be00f97072a46f8a72b4e2be46cbb7fa5053.1692147782.git.geliang.tang@suse.com Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>