From patchwork Wed Mar 20 16:57:57 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= X-Patchwork-Id: 1059394 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 44PbjV6PJpz9sQn for ; Thu, 21 Mar 2019 03:58:54 +1100 (AEDT) Received: from localhost ([127.0.0.1]:50584 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1h6eYG-0000JW-Dn for incoming@patchwork.ozlabs.org; Wed, 20 Mar 2019 12:58:52 -0400 Received: from eggs.gnu.org ([209.51.188.92]:39883) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1h6eXc-0000Ic-Jc for qemu-devel@nongnu.org; Wed, 20 Mar 2019 12:58:18 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1h6eXW-0007Xg-Hp for qemu-devel@nongnu.org; Wed, 20 Mar 2019 12:58:12 -0400 Received: from mx1.redhat.com ([209.132.183.28]:55510) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1h6eXU-0007Uw-Is for qemu-devel@nongnu.org; Wed, 20 Mar 2019 12:58:05 -0400 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 mx1.redhat.com (Postfix) with ESMTPS id 7D536C130714; Wed, 20 Mar 2019 16:58:03 +0000 (UTC) Received: from localhost.localdomain.com (ovpn-112-63.ams2.redhat.com [10.36.112.63]) by smtp.corp.redhat.com (Postfix) with ESMTP id 930935C237; Wed, 20 Mar 2019 16:58:01 +0000 (UTC) From: =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= To: qemu-devel@nongnu.org Date: Wed, 20 Mar 2019 16:57:57 +0000 Message-Id: <20190320165757.16614-2-berrange@redhat.com> In-Reply-To: <20190320165757.16614-1-berrange@redhat.com> References: <20190320165757.16614-1-berrange@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Wed, 20 Mar 2019 16:58:03 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 1/1] io: fix handling of EOF / error conditions in websock GSource X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Stefano Garzarella Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" We were never reporting the G_IO_HUP event when an end of file was hit on the websocket channel. We also didn't report G_IO_ERR when we hit a fatal error processing the websocket protocol. The latter in particular meant that the chardev code would not notice when an eof/error was encountered on the websocket channel, unless the guest OS happened to trigger a write operation. This meant that once the first client had quit, the chardev would never listen to accept a new client. Fixes launchpad bug 1816819 Acked-by: Stefano Garzarella Signed-off-by: Daniel P. Berrangé --- io/channel-websock.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/io/channel-websock.c b/io/channel-websock.c index dc43dc6bb9..77d30f0e4a 100644 --- a/io/channel-websock.c +++ b/io/channel-websock.c @@ -1225,12 +1225,18 @@ qio_channel_websock_source_check(GSource *source) QIOChannelWebsockSource *wsource = (QIOChannelWebsockSource *)source; GIOCondition cond = 0; - if (wsource->wioc->rawinput.offset || wsource->wioc->io_eof) { + if (wsource->wioc->rawinput.offset) { cond |= G_IO_IN; } if (wsource->wioc->encoutput.offset < QIO_CHANNEL_WEBSOCK_MAX_BUFFER) { cond |= G_IO_OUT; } + if (wsource->wioc->io_eof) { + cond |= G_IO_HUP; + } + if (wsource->wioc->io_err) { + cond |= G_IO_ERR; + } return cond & wsource->condition; }