vsock: send SIGPIPE on write to shutdowned socket

POSIX requires to send SIGPIPE on write to SOCK_STREAM socket which was
shutdowned with SHUT_WR flag or its peer was shutdowned with SHUT_RD
flag. Also we must not send SIGPIPE if MSG_NOSIGNAL flag is set.

Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index 020cf17ab7e47b7022b855e878caa7d501d50a13..013b65241b65e34d5daad2c060e303fd6841aea6 100644 (file)
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -1921,6 +1921,9 @@ out_err:
                        err = total_written;
        }
 out:
+       if (sk->sk_type == SOCK_STREAM)
+               err = sk_stream_error(sk, msg->msg_flags, err);
+
        release_sock(sk);
        return err;
 }