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authorCong Wang <cong.wang@bytedance.com>2021-07-04 22:02:45 +0300
committerAlexei Starovoitov <ast@kernel.org>2021-07-16 04:17:50 +0300
commit83301b5367a98c17ec0d76c7bc0ccdc3c7e7ad6d (patch)
tree41df0f676467ff7bf58da5bef2384923144ceed7 /net/unix
parent29df44fa52b70c330d8f2a3871e028a3522b8494 (diff)
downloadlinux-83301b5367a98c17ec0d76c7bc0ccdc3c7e7ad6d.tar.xz
af_unix: Set TCP_ESTABLISHED for datagram sockets too
Currently only unix stream socket sets TCP_ESTABLISHED, datagram socket can set this too when they connect to its peer socket. At least __ip4_datagram_connect() does the same. This will be used to determine whether an AF_UNIX datagram socket can be redirected to in sockmap. Signed-off-by: Cong Wang <cong.wang@bytedance.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20210704190252.11866-5-xiyou.wangcong@gmail.com
Diffstat (limited to 'net/unix')
-rw-r--r--net/unix/af_unix.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 38863468768a..77fb3910e1c3 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -494,6 +494,7 @@ static void unix_dgram_disconnected(struct sock *sk, struct sock *other)
sk_error_report(other);
}
}
+ sk->sk_state = other->sk_state = TCP_CLOSE;
}
static void unix_sock_destructor(struct sock *sk)
@@ -1202,6 +1203,9 @@ restart:
unix_peer(sk) = other;
unix_state_double_unlock(sk, other);
}
+
+ if (unix_peer(sk))
+ sk->sk_state = other->sk_state = TCP_ESTABLISHED;
return 0;
out_unlock:
@@ -1434,12 +1438,10 @@ static int unix_socketpair(struct socket *socka, struct socket *sockb)
init_peercred(ska);
init_peercred(skb);
- if (ska->sk_type != SOCK_DGRAM) {
- ska->sk_state = TCP_ESTABLISHED;
- skb->sk_state = TCP_ESTABLISHED;
- socka->state = SS_CONNECTED;
- sockb->state = SS_CONNECTED;
- }
+ ska->sk_state = TCP_ESTABLISHED;
+ skb->sk_state = TCP_ESTABLISHED;
+ socka->state = SS_CONNECTED;
+ sockb->state = SS_CONNECTED;
return 0;
}