From patchwork Thu Jan 16 17:24:27 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefano Garzarella X-Patchwork-Id: 11337561 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D4D5E138D for ; Thu, 16 Jan 2020 18:33:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AAD772073A for ; Thu, 16 Jan 2020 18:33:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="LHtIFCAH" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2392006AbgAPSdc (ORCPT ); Thu, 16 Jan 2020 13:33:32 -0500 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:31775 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2403821AbgAPRYw (ORCPT ); Thu, 16 Jan 2020 12:24:52 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1579195491; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=cbf0JDACQ1z0Tg+uGTmFGjFNBjOD4cliWg8yJbi8qUQ=; b=LHtIFCAHg3/7qcTa8Sz08Q3rUJX4E4DGcN6dMo/xmJbK8VF1BudDd6fvU7D2yxrPipquNI GIa2Oqp8X/ZbBcOLrMrgbEMIPzM+7iU30tTHtmVlcKO/85W5c6Kq/ge3kJwNWPpYL+WDDn yTrwZXK5Liq5pFtOQBqzWXUCLXfVXck= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-278-bBiplUCvO5uGdLfoXn4TUQ-1; Thu, 16 Jan 2020 12:24:49 -0500 X-MC-Unique: bBiplUCvO5uGdLfoXn4TUQ-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id CFB70800D4C; Thu, 16 Jan 2020 17:24:47 +0000 (UTC) Received: from steredhat.redhat.com (ovpn-117-242.ams2.redhat.com [10.36.117.242]) by smtp.corp.redhat.com (Postfix) with ESMTP id 593AB5C1D8; Thu, 16 Jan 2020 17:24:45 +0000 (UTC) From: Stefano Garzarella To: davem@davemloft.net, netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Jorgen Hansen , Jason Wang , kvm@vger.kernel.org, Stefan Hajnoczi , Stefano Garzarella , virtualization@lists.linux-foundation.org, linux-hyperv@vger.kernel.org, "Michael S. Tsirkin" , Dexuan Cui Subject: [PATCH net-next 2/3] vsock/virtio_transport_common: handle netns of received packets Date: Thu, 16 Jan 2020 18:24:27 +0100 Message-Id: <20200116172428.311437-3-sgarzare@redhat.com> In-Reply-To: <20200116172428.311437-1-sgarzare@redhat.com> References: <20200116172428.311437-1-sgarzare@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This patch allows transports that use virtio_transport_common to specify the network namespace where a received packet is to be delivered. virtio_transport and vhost_transport, for now, use the default network namespace. vsock_loopback uses the same network namespace of the transmitter. Signed-off-by: Stefano Garzarella --- drivers/vhost/vsock.c | 1 + include/linux/virtio_vsock.h | 2 ++ net/vmw_vsock/virtio_transport.c | 2 ++ net/vmw_vsock/virtio_transport_common.c | 13 ++++++++++--- 4 files changed, 15 insertions(+), 3 deletions(-) diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c index c2d7d57e98cf..f1d39939d5e4 100644 --- a/drivers/vhost/vsock.c +++ b/drivers/vhost/vsock.c @@ -474,6 +474,7 @@ static void vhost_vsock_handle_tx_kick(struct vhost_work *work) continue; } + pkt->net = vsock_default_net(); len = pkt->len; /* Deliver to monitoring devices all received packets */ diff --git a/include/linux/virtio_vsock.h b/include/linux/virtio_vsock.h index 71c81e0dc8f2..d4fc93e6e03e 100644 --- a/include/linux/virtio_vsock.h +++ b/include/linux/virtio_vsock.h @@ -43,6 +43,7 @@ struct virtio_vsock_pkt { struct list_head list; /* socket refcnt not held, only use for cancellation */ struct vsock_sock *vsk; + struct net *net; void *buf; u32 buf_len; u32 len; @@ -54,6 +55,7 @@ struct virtio_vsock_pkt_info { u32 remote_cid, remote_port; struct vsock_sock *vsk; struct msghdr *msg; + struct net *net; u32 pkt_len; u16 type; u16 op; diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c index dfbaf6bd8b1c..fb03a1535c21 100644 --- a/net/vmw_vsock/virtio_transport.c +++ b/net/vmw_vsock/virtio_transport.c @@ -527,6 +527,8 @@ static void virtio_transport_rx_work(struct work_struct *work) } pkt->len = len - sizeof(pkt->hdr); + pkt->net = vsock_default_net(); + virtio_transport_deliver_tap_pkt(pkt); virtio_transport_recv_pkt(&virtio_transport, pkt); } diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c index cecdfd91ed00..6402dea62e45 100644 --- a/net/vmw_vsock/virtio_transport_common.c +++ b/net/vmw_vsock/virtio_transport_common.c @@ -63,6 +63,7 @@ virtio_transport_alloc_pkt(struct virtio_vsock_pkt_info *info, pkt->hdr.len = cpu_to_le32(len); pkt->reply = info->reply; pkt->vsk = info->vsk; + pkt->net = info->net; if (info->msg && len > 0) { pkt->buf = kmalloc(len, GFP_KERNEL); @@ -273,6 +274,7 @@ static int virtio_transport_send_credit_update(struct vsock_sock *vsk, .op = VIRTIO_VSOCK_OP_CREDIT_UPDATE, .type = type, .vsk = vsk, + .net = sock_net(sk_vsock(vsk)), }; return virtio_transport_send_pkt_info(vsk, &info); @@ -622,6 +624,7 @@ int virtio_transport_connect(struct vsock_sock *vsk) .op = VIRTIO_VSOCK_OP_REQUEST, .type = VIRTIO_VSOCK_TYPE_STREAM, .vsk = vsk, + .net = sock_net(sk_vsock(vsk)), }; return virtio_transport_send_pkt_info(vsk, &info); @@ -638,6 +641,7 @@ int virtio_transport_shutdown(struct vsock_sock *vsk, int mode) (mode & SEND_SHUTDOWN ? VIRTIO_VSOCK_SHUTDOWN_SEND : 0), .vsk = vsk, + .net = sock_net(sk_vsock(vsk)), }; return virtio_transport_send_pkt_info(vsk, &info); @@ -665,6 +669,7 @@ virtio_transport_stream_enqueue(struct vsock_sock *vsk, .msg = msg, .pkt_len = len, .vsk = vsk, + .net = sock_net(sk_vsock(vsk)), }; return virtio_transport_send_pkt_info(vsk, &info); @@ -687,6 +692,7 @@ static int virtio_transport_reset(struct vsock_sock *vsk, .type = VIRTIO_VSOCK_TYPE_STREAM, .reply = !!pkt, .vsk = vsk, + .net = sock_net(sk_vsock(vsk)), }; /* Send RST only if the original pkt is not a RST pkt */ @@ -707,6 +713,7 @@ static int virtio_transport_reset_no_sock(const struct virtio_transport *t, .op = VIRTIO_VSOCK_OP_RST, .type = le16_to_cpu(pkt->hdr.type), .reply = true, + .net = pkt->net, }; /* Send RST only if the original pkt is not a RST pkt */ @@ -991,6 +998,7 @@ virtio_transport_send_response(struct vsock_sock *vsk, .remote_port = le32_to_cpu(pkt->hdr.src_port), .reply = true, .vsk = vsk, + .net = sock_net(sk_vsock(vsk)), }; return virtio_transport_send_pkt_info(vsk, &info); @@ -1088,7 +1096,6 @@ virtio_transport_recv_listen(struct sock *sk, struct virtio_vsock_pkt *pkt, void virtio_transport_recv_pkt(struct virtio_transport *t, struct virtio_vsock_pkt *pkt) { - struct net *net = vsock_default_net(); struct sockaddr_vm src, dst; struct vsock_sock *vsk; struct sock *sk; @@ -1116,9 +1123,9 @@ void virtio_transport_recv_pkt(struct virtio_transport *t, /* The socket must be in connected or bound table * otherwise send reset back */ - sk = vsock_find_connected_socket(&src, &dst, net); + sk = vsock_find_connected_socket(&src, &dst, pkt->net); if (!sk) { - sk = vsock_find_bound_socket(&dst, net); + sk = vsock_find_bound_socket(&dst, pkt->net); if (!sk) { (void)virtio_transport_reset_no_sock(t, pkt); goto free_pkt;