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From: Arseny Krasnov <arseny.krasnov@kaspersky.com>
To: Stefan Hajnoczi <stefanha@redhat.com>,
	Stefano Garzarella <sgarzare@redhat.com>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	Jason Wang <jasowang@redhat.com>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Jorgen Hansen <jhansen@vmware.com>,
	Colin Ian King <colin.king@canonical.com>,
	Andra Paraschiv <andraprs@amazon.com>,
	Norbert Slusarek <nslusarek@gmx.net>,
	Alexander Popov <alex.popov@linux.com>
Cc: <kvm@vger.kernel.org>,
	<virtualization@lists.linux-foundation.org>,
	<netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<stsp2@yandex.ru>, <arseny.krasnov@kaspersky.com>,
	<oxffffaa@gmail.com>
Subject: [RFC PATCH v8 13/19] virtio/vsock: rest of SOCK_SEQPACKET support
Date: Tue, 13 Apr 2021 15:45:25 +0300	[thread overview]
Message-ID: <20210413124528.3404287-1-arseny.krasnov@kaspersky.com> (raw)
In-Reply-To: <20210413123954.3396314-1-arseny.krasnov@kaspersky.com>

This adds rest of logic for SEQPACKET:
1) Send SHUTDOWN on socket close for SEQPACKET type.
2) Set SEQPACKET packet type during send.
3) 'seqpacket_allow' flag to virtio transport.
4) Set 'VIRTIO_VSOCK_SEQ_EOR' bit in flags for last
   packet of message.

Signed-off-by: Arseny Krasnov <arseny.krasnov@kaspersky.com>
---
v7 -> v8:
 - MSG_EOR handling is removed, i didn't found exact description about
   how it works in POSIX.
 - SEQ_BEGIN, SEQ_END, etc. now removed.

 include/linux/virtio_vsock.h            |  6 ++++++
 net/vmw_vsock/virtio_transport_common.c | 16 ++++++++++++++--
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/include/linux/virtio_vsock.h b/include/linux/virtio_vsock.h
index 02acf6e9ae04..f00a01bfdd7e 100644
--- a/include/linux/virtio_vsock.h
+++ b/include/linux/virtio_vsock.h
@@ -68,6 +68,8 @@ struct virtio_transport {
 
 	/* Takes ownership of the packet */
 	int (*send_pkt)(struct virtio_vsock_pkt *pkt);
+
+	bool seqpacket_allow;
 };
 
 ssize_t
@@ -80,6 +82,10 @@ virtio_transport_dgram_dequeue(struct vsock_sock *vsk,
 			       struct msghdr *msg,
 			       size_t len, int flags);
 
+int
+virtio_transport_seqpacket_enqueue(struct vsock_sock *vsk,
+				   struct msghdr *msg,
+				   size_t len);
 ssize_t
 virtio_transport_seqpacket_dequeue(struct vsock_sock *vsk,
 				   struct msghdr *msg,
diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c
index 572869fef832..4c5b63601308 100644
--- a/net/vmw_vsock/virtio_transport_common.c
+++ b/net/vmw_vsock/virtio_transport_common.c
@@ -74,6 +74,9 @@ virtio_transport_alloc_pkt(struct virtio_vsock_pkt_info *info,
 		err = memcpy_from_msg(pkt->buf, info->msg, len);
 		if (err)
 			goto out;
+
+		if (info->msg->msg_iter.count == 0)
+			pkt->hdr.flags |= VIRTIO_VSOCK_SEQ_EOR;
 	}
 
 	trace_virtio_transport_alloc_pkt(src_cid, src_port,
@@ -187,7 +190,7 @@ static int virtio_transport_send_pkt_info(struct vsock_sock *vsk,
 	struct virtio_vsock_pkt *pkt;
 	u32 pkt_len = info->pkt_len;
 
-	info->type = VIRTIO_VSOCK_TYPE_STREAM;
+	info->type = virtio_transport_get_type(sk_vsock(vsk));
 
 	t_ops = virtio_transport_get_ops(vsk);
 	if (unlikely(!t_ops))
@@ -486,6 +489,15 @@ virtio_transport_seqpacket_dequeue(struct vsock_sock *vsk,
 }
 EXPORT_SYMBOL_GPL(virtio_transport_seqpacket_dequeue);
 
+int
+virtio_transport_seqpacket_enqueue(struct vsock_sock *vsk,
+				   struct msghdr *msg,
+				   size_t len)
+{
+	return virtio_transport_stream_enqueue(vsk, msg, len);
+}
+EXPORT_SYMBOL_GPL(virtio_transport_seqpacket_enqueue);
+
 int
 virtio_transport_dgram_dequeue(struct vsock_sock *vsk,
 			       struct msghdr *msg,
@@ -905,7 +917,7 @@ void virtio_transport_release(struct vsock_sock *vsk)
 	struct sock *sk = &vsk->sk;
 	bool remove_sock = true;
 
-	if (sk->sk_type == SOCK_STREAM)
+	if (sk->sk_type == SOCK_STREAM || sk->sk_type == SOCK_SEQPACKET)
 		remove_sock = virtio_transport_close(vsk);
 
 	list_for_each_entry_safe(pkt, tmp, &vvs->rx_queue, list) {
-- 
2.25.1


  parent reply	other threads:[~2021-04-13 12:46 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-13 12:39 [RFC PATCH v8 00/19] virtio/vsock: introduce SOCK_SEQPACKET support Arseny Krasnov
2021-04-13 12:41 ` [RFC PATCH v8 01/19] af_vsock: update functions for connectible socket Arseny Krasnov
2021-04-13 12:42 ` [RFC PATCH v8 02/19] af_vsock: separate wait data loop Arseny Krasnov
2021-04-13 12:42 ` [RFC PATCH v8 03/19] af_vsock: separate receive " Arseny Krasnov
2021-04-13 12:42 ` [RFC PATCH v8 04/19] af_vsock: implement SEQPACKET receive loop Arseny Krasnov
2021-04-21  8:37   ` Stefano Garzarella
2021-04-21 14:47     ` Arseny Krasnov
2021-04-13 12:43 ` [RFC PATCH v8 05/19] af_vsock: implement send logic for SEQPACKET Arseny Krasnov
2021-04-13 12:43 ` [RFC PATCH v8 06/19] af_vsock: rest of SEQPACKET support Arseny Krasnov
2021-04-13 12:43 ` [RFC PATCH v8 07/19] af_vsock: update comments for stream sockets Arseny Krasnov
2021-04-13 12:43 ` [RFC PATCH v8 08/19] virtio/vsock: set packet's type in virtio_transport_send_pkt_info() Arseny Krasnov
2021-04-13 12:44 ` [RFC PATCH v8 09/19] virtio/vsock: simplify credit update function API Arseny Krasnov
2021-04-13 12:44 ` [RFC PATCH v8 10/19] virtio/vsock: defines and constants for SEQPACKET Arseny Krasnov
2021-04-13 12:44 ` [RFC PATCH v8 11/19] virtio/vsock: dequeue callback for SOCK_SEQPACKET Arseny Krasnov
2021-04-14  5:21   ` Arseny Krasnov
2021-04-21  8:56   ` Stefano Garzarella
2021-04-21 14:49     ` Arseny Krasnov
2021-04-13 12:45 ` [RFC PATCH v8 12/19] virtio/vsock: add SEQPACKET receive logic Arseny Krasnov
2021-04-13 12:45 ` Arseny Krasnov [this message]
2021-04-21  9:12   ` [RFC PATCH v8 13/19] virtio/vsock: rest of SOCK_SEQPACKET support Stefano Garzarella
2021-04-21 14:50     ` Arseny Krasnov
2021-04-13 12:45 ` [RFC PATCH v8 14/19] virtio/vsock: enable SEQPACKET for transport Arseny Krasnov
2021-04-21  9:22   ` Stefano Garzarella
2021-04-13 12:46 ` [RFC PATCH v8 15/19] vhost/vsock: " Arseny Krasnov
2021-04-21  9:31   ` Stefano Garzarella
2021-04-13 12:46 ` [RFC PATCH v8 16/19] vsock/loopback: " Arseny Krasnov
2021-04-21  9:34   ` Stefano Garzarella
2021-04-13 12:46 ` [RFC PATCH v8 17/19] vsock_test: add SOCK_SEQPACKET tests Arseny Krasnov
2021-04-21  9:35   ` Stefano Garzarella
2021-04-21 15:00     ` Arseny Krasnov
2021-04-13 12:47 ` [RFC PATCH v8 18/19] virtio/vsock: update trace event for SEQPACKET Arseny Krasnov
2021-04-13 12:47 ` [RFC PATCH v8 19/19] af_vsock: serialize writes to shared socket Arseny Krasnov
2021-04-14 10:51   ` Arseny Krasnov
2021-04-21  9:38     ` Stefano Garzarella
2021-04-21 15:02       ` Arseny Krasnov
2021-04-21  9:52 ` [RFC PATCH v8 00/19] virtio/vsock: introduce SOCK_SEQPACKET support Stefano Garzarella
2021-04-21 15:06   ` Arseny Krasnov
2021-04-22  8:46     ` Stefano Garzarella
2021-04-22  9:40       ` Arseny Krasnov
2021-04-22 10:02         ` Stefano Garzarella
2021-04-22 10:29           ` Arseny Krasnov
2021-04-22 10:48             ` Stefano Garzarella
2021-04-22 11:41               ` Arseny Krasnov

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