[RFC net-next af_unix v1 1/1] af_unix: Allow delivery of SIGURG on AF_UNIX streams socket
From: <hidden>
Date: 2020-11-29 03:05:38
Subsystem:
networking [general], networking [unix sockets], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Kuniyuki Iwashima, Linus Torvalds
From: Rao Shoaib <redacted> For AF_UNIX stream socket send SIGURG to the peer if the msg has MSG_OOB flag set. Signed-off-by: Rao Shoaib <redacted> --- net/unix/af_unix.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 92784e5..4f01d74 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c@@ -1840,8 +1840,6 @@ static int unix_stream_sendmsg(struct socket *sock, struct msghdr *msg, return err; err = -EOPNOTSUPP; - if (msg->msg_flags&MSG_OOB) - goto out_err; if (msg->msg_namelen) { err = sk->sk_state == TCP_ESTABLISHED ? -EISCONN : -EOPNOTSUPP;
@@ -1906,6 +1904,9 @@ static int unix_stream_sendmsg(struct socket *sock, struct msghdr *msg, sent += size; } + if (msg->msg_flags & MSG_OOB) + sk_send_sigurg(other); + scm_destroy(&scm); return sent;
--
1.8.3.1