[Patch bpf-next v7 12/13] sock_map: update sock type checks for UDP
From: Cong Wang <hidden>
Date: 2021-03-28 20:21:21
Also in:
bpf
Subsystem:
bpf [l7 framework] (sockmap), networking [general], networking [sockets], the rest · Maintainers:
John Fastabend, Jakub Sitnicki, Jiayuan Chen, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Kuniyuki Iwashima, Willem de Bruijn, Linus Torvalds
From: Cong Wang <redacted> Now UDP supports sockmap and redirection, we can safely update the sock type checks for it accordingly. Cc: John Fastabend <john.fastabend@gmail.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Jakub Sitnicki <jakub@cloudflare.com> Cc: Lorenz Bauer <redacted> Signed-off-by: Cong Wang <redacted> --- net/core/sock_map.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/net/core/sock_map.c b/net/core/sock_map.c
index d04b98fc8104..9ed040c7d9e7 100644
--- a/net/core/sock_map.c
+++ b/net/core/sock_map.c@@ -549,7 +549,10 @@ static bool sk_is_udp(const struct sock *sk) static bool sock_map_redirect_allowed(const struct sock *sk) { - return sk_is_tcp(sk) && sk->sk_state != TCP_LISTEN; + if (sk_is_tcp(sk)) + return sk->sk_state != TCP_LISTEN; + else + return sk->sk_state == TCP_ESTABLISHED; } static bool sock_map_sk_is_suitable(const struct sock *sk)
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2.25.1