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sock_map: Update sock type checks for UDP
author
Cong Wang
<cong.wang@bytedance.com>
Wed, 31 Mar 2021 02:32:35 +0000
(19:32 -0700)
committer
Alexei Starovoitov
<ast@kernel.org>
Thu, 1 Apr 2021 17:56:14 +0000
(10:56 -0700)
Now UDP supports sockmap and redirection, we can safely update
the sock type checks for it accordingly.
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link:
https://lore.kernel.org/bpf/20210331023237.41094-15-xiyou.wangcong@gmail.com
net/core/sock_map.c
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diff --git
a/net/core/sock_map.c
b/net/core/sock_map.c
index
2915c7c
..
3d190d2
100644
(file)
--- a/
net/core/sock_map.c
+++ b/
net/core/sock_map.c
@@
-535,7
+535,10
@@
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)