[PATCH net-next v5 4/5] bpf: Add SO_TXREHASH setsockopt
From: Akhmat Karakotov <hidden>
Date: 2022-01-31 13:33:38
Also in:
bpf
Subsystem:
bpf [general] (safe dynamic programs and tools), bpf [networking] (tcx & tc bpf, sock_addr), networking [general], the rest · Maintainers:
Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Martin KaFai Lau, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Add bpf socket option to override rehash behaviour from userspace or from bpf. Signed-off-by: Akhmat Karakotov <redacted> Reviewed-by: Eric Dumazet <edumazet@google.com> --- net/core/filter.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/net/core/filter.c b/net/core/filter.c
index a06931c27eeb..9615ae1ab530 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c@@ -5091,6 +5091,13 @@ static int _bpf_setsockopt(struct sock *sk, int level, int optname, case SO_REUSEPORT: sk->sk_reuseport = valbool; break; + case SO_TXREHASH: + if (val < -1 || val > 1) { + ret = -EINVAL; + break; + } + sk->sk_txrehash = (u8)val; + break; default: ret = -EINVAL; }
@@ -5269,6 +5276,9 @@ static int _bpf_getsockopt(struct sock *sk, int level, int optname, case SO_REUSEPORT: *((int *)optval) = sk->sk_reuseport; break; + case SO_TXREHASH: + *((int *)optval) = sk->sk_txrehash; + break; default: goto err_clear; }
--
2.17.1