Virtualization - Aug 2023 - [RFC PATCH v2 1/2] vsock: send SIGPIPE on write to shutdowned socket

On Sat, Aug 26, 2023 at 08:58:59PM +0300, Arseniy Krasnov
wrote:
>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 at salutedevices.com>
>---
> net/vmw_vsock/af_vsock.c | 3 +++
> 1 file changed, 3 insertions(+)
Reviewed-by: Stefano Garzarella <sgarzare at redhat.com>
>
>diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
>index 020cf17ab7e4..013b65241b65 100644
>--- a/net/vmw_vsock/af_vsock.c
>+++ b/net/vmw_vsock/af_vsock.c
>@@ -1921,6 +1921,9 @@ static int vsock_connectible_sendmsg(struct socket
*sock, struct msghdr *msg,
> 			err = total_written;
> 	}
> out:
>+	if (sk->sk_type == SOCK_STREAM)
>+		err = sk_stream_error(sk, msg->msg_flags, err);
>+
> 	release_sock(sk);
> 	return err;
> }
>-- 
>2.25.1
>