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Message-ID: <qgn26mgfotc7qxzp6ad7ezkdex6aqniv32c5tvehxh4hljsnvs@x7wvyvptizxx>
Date: Wed, 2 Aug 2023 09:46:08 +0200
From: Stefano Garzarella <sgarzare@...hat.com>
To: Arseniy Krasnov <AVKrasnov@...rdevices.ru>
Cc: Stefan Hajnoczi <stefanha@...hat.com>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
"Michael S. Tsirkin" <mst@...hat.com>,
Jason Wang <jasowang@...hat.com>,
Bobby Eshleman <bobby.eshleman@...edance.com>,
kvm@...r.kernel.org, virtualization@...ts.linux-foundation.org,
netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
kernel@...rdevices.ru, oxffffaa@...il.com
Subject: Re: [RFC PATCH v1 1/2] vsock: send SIGPIPE on write to shutdowned
socket
On Tue, Aug 01, 2023 at 05:17:26PM +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@...rdevices.ru>
>---
> net/vmw_vsock/af_vsock.c | 3 +++
> 1 file changed, 3 insertions(+)
>
>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);
Do you know why we don't need this for SOCK_SEQPACKET and SOCK_DGRAM?
Thanks,
Stefano
>+
> release_sock(sk);
> return err;
> }
>--
>2.25.1
>
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