[PATCH net-next v3 3/4] bpf: Add SO_TXREHASH setsockopt
flat view
STALE1720d
REVIEWED: 1 (0M)
From: Akhmat Karakotov <hidden>
Date: 2022-01-28 15:17:12
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, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Revision v3 of 5 in this series; 1 review trailer.
Revisions (5)
- rfc [diff vs current]
- v2 [diff vs current]
- v2 [diff vs current]
- v3
- v3 current
Add bpf socket option to override rehash behaviour from userspace or from bpf. Signed-off-by: Akhmat Karakotov <redacted> Reviewed-by: Eric Dumazet <redacted> --- net/core/filter.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/net/core/filter.c b/net/core/filter.c
index 2e32cee2c469..de68763f3c51 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c@@ -4808,6 +4808,13 @@ 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; }
@@ -4980,6 +4987,9 @@ 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