From: Cong Wang <cong.wang@xxxxxxxxxxxxx>
Now AF_UNIX datagram supports sockmap and redirection,
we can update the sock type checks for them accordingly.
Cc: John Fastabend <john.fastabend@xxxxxxxxx>
Cc: Daniel Borkmann <daniel@xxxxxxxxxxxxx>
Cc: Jakub Sitnicki <jakub@xxxxxxxxxxxxxx>
Cc: Lorenz Bauer <lmb@xxxxxxxxxxxxxx>
Signed-off-by: Cong Wang <cong.wang@xxxxxxxxxxxxx>
---
net/core/sock_map.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/net/core/sock_map.c b/net/core/sock_map.c
index 13b474d89f93..ee9a6dfcf269 100644
--- a/net/core/sock_map.c
+++ b/net/core/sock_map.c
@@ -533,6 +533,12 @@ static bool sk_is_udp(const struct sock *sk)
sk->sk_protocol == IPPROTO_UDP;
}
+static bool sk_is_unix(const struct sock *sk)
+{
+ return sk->sk_type == SOCK_DGRAM &&
+ sk->sk_family == AF_UNIX;
+}
+
static bool sock_map_redirect_allowed(const struct sock *sk)
{
if (sk_is_tcp(sk))
@@ -552,6 +558,8 @@ static bool sock_map_sk_state_allowed(const struct sock *sk)
return (1 << sk->sk_state) & (TCPF_ESTABLISHED | TCPF_LISTEN);
else if (sk_is_udp(sk))
return sk_hashed(sk);
+ else if (sk_is_unix(sk))
+ return sk->sk_state == TCP_ESTABLISHED;
return false;
}
--
2.25.1
