From nobody Thu Nov 13 16:37:09 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1581078544910463.05993874394505; Fri, 7 Feb 2020 04:29:04 -0800 (PST) Received: from localhost ([::1]:55452 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j02kp-0002xo-PA for importer@patchew.org; Fri, 07 Feb 2020 07:29:03 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:45507) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j02gk-0006bi-Fi for qemu-devel@nongnu.org; Fri, 07 Feb 2020 07:24:51 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1j02gj-0002x9-6M for qemu-devel@nongnu.org; Fri, 07 Feb 2020 07:24:50 -0500 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:45143 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1j02gj-0002wn-2l for qemu-devel@nongnu.org; Fri, 07 Feb 2020 07:24:49 -0500 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-148-72BwIxcNNd6ktsrgPuW-CQ-1; Fri, 07 Feb 2020 07:24:44 -0500 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 548B58010F0; Fri, 7 Feb 2020 12:24:43 +0000 (UTC) Received: from dhcp-16-105.lcy.redhat.com (unknown [10.42.16.105]) by smtp.corp.redhat.com (Postfix) with ESMTP id A36B77FB60; Fri, 7 Feb 2020 12:24:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1581078288; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Kf1bEPsOQ+el19y8yBj1u6MqvEbYJmnNEEKnwpNAv0c=; b=O0I+JxQJ3ZlRvvugmK+iY9c4uVbCCxdUszggmIneYMrJNOgLBjjFTU42IuO2iYwBFWYwwW 1Ibo7AnlYEjpz4sYuNxK/etHSpoLy0S1PfGC+L9J2J8EIGUlU+m6bOfftaBKS6lGzQP7Ef yrD8ZrHSkoAKYEhN1oXp2QLnMK5UUSA= From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Subject: [PULL 1/3] io/channel-websock: treat 'binary' and no sub-protocol as the same Date: Fri, 7 Feb 2020 12:24:38 +0000 Message-Id: <20200207122440.2650229-2-berrange@redhat.com> In-Reply-To: <20200207122440.2650229-1-berrange@redhat.com> References: <20200207122440.2650229-1-berrange@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-MC-Unique: 72BwIxcNNd6ktsrgPuW-CQ-1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 205.139.110.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Yu-Chen Lin , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" From: Yu-Chen Lin noVNC doesn't use 'binary' protocol by default after commit c912230309806aacbae4295faf7ad6406da97617. It will cause qemu return 400 when handshaking. To overcome this problem and remain compatibility of older noVNC client. We treat 'binary' and no sub-protocol as the same so that we can support different version of noVNC client. Tested on noVNC before c912230 and after c912230. Buglink: https://bugs.launchpad.net/qemu/+bug/1849644 Signed-off-by: Yu-Chen Lin Signed-off-by: Daniel P. Berrang=C3=A9 --- io/channel-websock.c | 36 ++++++++++++++++++++++++------------ 1 file changed, 24 insertions(+), 12 deletions(-) diff --git a/io/channel-websock.c b/io/channel-websock.c index fc36d44eba..47a0e941d9 100644 --- a/io/channel-websock.c +++ b/io/channel-websock.c @@ -49,13 +49,20 @@ "Server: QEMU VNC\r\n" \ "Date: %s\r\n" =20 +#define QIO_CHANNEL_WEBSOCK_HANDSHAKE_WITH_PROTO_RES_OK \ + "HTTP/1.1 101 Switching Protocols\r\n" \ + QIO_CHANNEL_WEBSOCK_HANDSHAKE_RES_COMMON \ + "Upgrade: websocket\r\n" \ + "Connection: Upgrade\r\n" \ + "Sec-WebSocket-Accept: %s\r\n" \ + "Sec-WebSocket-Protocol: binary\r\n" \ + "\r\n" #define QIO_CHANNEL_WEBSOCK_HANDSHAKE_RES_OK \ "HTTP/1.1 101 Switching Protocols\r\n" \ QIO_CHANNEL_WEBSOCK_HANDSHAKE_RES_COMMON \ "Upgrade: websocket\r\n" \ "Connection: Upgrade\r\n" \ "Sec-WebSocket-Accept: %s\r\n" \ - "Sec-WebSocket-Protocol: binary\r\n" \ "\r\n" #define QIO_CHANNEL_WEBSOCK_HANDSHAKE_RES_NOT_FOUND \ "HTTP/1.1 404 Not Found\r\n" \ @@ -336,6 +343,7 @@ qio_channel_websock_find_header(QIOChannelWebsockHTTPHe= ader *hdrs, =20 static void qio_channel_websock_handshake_send_res_ok(QIOChannelWebsock *i= oc, const char *key, + const bool use_proto= cols, Error **errp) { char combined_key[QIO_CHANNEL_WEBSOCK_CLIENT_KEY_LEN + @@ -361,8 +369,14 @@ static void qio_channel_websock_handshake_send_res_ok(= QIOChannelWebsock *ioc, } =20 date =3D qio_channel_websock_date_str(); - qio_channel_websock_handshake_send_res( - ioc, QIO_CHANNEL_WEBSOCK_HANDSHAKE_RES_OK, date, accept); + if (use_protocols) { + qio_channel_websock_handshake_send_res( + ioc, QIO_CHANNEL_WEBSOCK_HANDSHAKE_WITH_PROTO_RES_OK, + date, accept); + } else { + qio_channel_websock_handshake_send_res( + ioc, QIO_CHANNEL_WEBSOCK_HANDSHAKE_RES_OK, date, accept); + } =20 g_free(date); g_free(accept); @@ -387,10 +401,6 @@ static void qio_channel_websock_handshake_process(QIOC= hannelWebsock *ioc, =20 protocols =3D qio_channel_websock_find_header( hdrs, nhdrs, QIO_CHANNEL_WEBSOCK_HEADER_PROTOCOL); - if (!protocols) { - error_setg(errp, "Missing websocket protocol header data"); - goto bad_request; - } =20 version =3D qio_channel_websock_find_header( hdrs, nhdrs, QIO_CHANNEL_WEBSOCK_HEADER_VERSION); @@ -430,10 +440,12 @@ static void qio_channel_websock_handshake_process(QIO= ChannelWebsock *ioc, trace_qio_channel_websock_http_request(ioc, protocols, version, host, connection, upgrade, key); =20 - if (!g_strrstr(protocols, QIO_CHANNEL_WEBSOCK_PROTOCOL_BINARY)) { - error_setg(errp, "No '%s' protocol is supported by client '%s'", - QIO_CHANNEL_WEBSOCK_PROTOCOL_BINARY, protocols); - goto bad_request; + if (protocols) { + if (!g_strrstr(protocols, QIO_CHANNEL_WEBSOCK_PROTOCOL_BINARY)= ) { + error_setg(errp, "No '%s' protocol is supported by client = '%s'", + QIO_CHANNEL_WEBSOCK_PROTOCOL_BINARY, protocols); + goto bad_request; + } } =20 if (!g_str_equal(version, QIO_CHANNEL_WEBSOCK_SUPPORTED_VERSION)) { @@ -467,7 +479,7 @@ static void qio_channel_websock_handshake_process(QIOCh= annelWebsock *ioc, goto bad_request; } =20 - qio_channel_websock_handshake_send_res_ok(ioc, key, errp); + qio_channel_websock_handshake_send_res_ok(ioc, key, !!protocols, errp); return; =20 bad_request: --=20 2.24.1