From nobody Thu Apr 25 17:50:00 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.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; spf=pass (zoho.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 1549555922302144.84875550888557; Thu, 7 Feb 2019 08:12:02 -0800 (PST) Received: from localhost ([127.0.0.1]:42655 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmHP-00035e-84 for importer@patchew.org; Thu, 07 Feb 2019 11:11:59 -0500 Received: from eggs.gnu.org ([209.51.188.92]:59747) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmCV-0007jc-FE for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:56 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1grmCO-0006IP-VZ for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:55 -0500 Received: from mx1.redhat.com ([209.132.183.28]:53940) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1grmCO-00060Y-KN for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:48 -0500 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 8C90387623; Thu, 7 Feb 2019 16:06:23 +0000 (UTC) Received: from localhost (unknown [10.36.112.15]) by smtp.corp.redhat.com (Postfix) with ESMTP id 085CA17A62; Thu, 7 Feb 2019 16:06:22 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Thu, 7 Feb 2019 17:06:00 +0100 Message-Id: <20190207160617.1142-2-marcandre.lureau@redhat.com> In-Reply-To: <20190207160617.1142-1-marcandre.lureau@redhat.com> References: <20190207160617.1142-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Thu, 07 Feb 2019 16:06:23 +0000 (UTC) Content-Transfer-Encoding: quoted-printable 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 01/18] io: store reference to thread information in the QIOTask struct 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: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Daniel P. Berrang=C3=A9 Currently the struct QIOTaskThreadData is only needed by the worker thread, but a subsequent patch will need to access it from another context. Signed-off-by: Daniel P. Berrang=C3=A9 Message-Id: <20190123172740.32452-2-berrange@redhat.com> [ Marc-Andr=C3=A9 - applied Daniel fixup ] Signed-off-by: Marc-Andr=C3=A9 Lureau --- io/task.c | 64 +++++++++++++++++++++++++++++-------------------------- 1 file changed, 34 insertions(+), 30 deletions(-) diff --git a/io/task.c b/io/task.c index 2886a2c1bc..396866b10f 100644 --- a/io/task.c +++ b/io/task.c @@ -24,6 +24,14 @@ #include "qemu/thread.h" #include "trace.h" =20 +struct QIOTaskThreadData { + QIOTaskWorker worker; + gpointer opaque; + GDestroyNotify destroy; + GMainContext *context; +}; + + struct QIOTask { Object *source; QIOTaskFunc func; @@ -32,6 +40,7 @@ struct QIOTask { Error *err; gpointer result; GDestroyNotify destroyResult; + struct QIOTaskThreadData *thread; }; =20 =20 @@ -57,6 +66,18 @@ QIOTask *qio_task_new(Object *source, =20 static void qio_task_free(QIOTask *task) { + if (task->thread) { + if (task->thread->destroy) { + task->thread->destroy(task->thread->opaque); + } + + if (task->thread->context) { + g_main_context_unref(task->thread->context); + } + + g_free(task->thread); + } + if (task->destroy) { task->destroy(task->opaque); } @@ -72,31 +93,12 @@ static void qio_task_free(QIOTask *task) } =20 =20 -struct QIOTaskThreadData { - QIOTask *task; - QIOTaskWorker worker; - gpointer opaque; - GDestroyNotify destroy; - GMainContext *context; -}; - - static gboolean qio_task_thread_result(gpointer opaque) { - struct QIOTaskThreadData *data =3D opaque; + QIOTask *task =3D opaque; =20 - trace_qio_task_thread_result(data->task); - qio_task_complete(data->task); - - if (data->destroy) { - data->destroy(data->opaque); - } - - if (data->context) { - g_main_context_unref(data->context); - } - - g_free(data); + trace_qio_task_thread_result(task); + qio_task_complete(task); =20 return FALSE; } @@ -104,22 +106,23 @@ static gboolean qio_task_thread_result(gpointer opaqu= e) =20 static gpointer qio_task_thread_worker(gpointer opaque) { - struct QIOTaskThreadData *data =3D opaque; + QIOTask *task =3D opaque; GSource *idle; =20 - trace_qio_task_thread_run(data->task); - data->worker(data->task, data->opaque); + trace_qio_task_thread_run(task); + + task->thread->worker(task, task->thread->opaque); =20 /* We're running in the background thread, and must only * ever report the task results in the main event loop * thread. So we schedule an idle callback to report * the worker results */ - trace_qio_task_thread_exit(data->task); + trace_qio_task_thread_exit(task); =20 idle =3D g_idle_source_new(); - g_source_set_callback(idle, qio_task_thread_result, data, NULL); - g_source_attach(idle, data->context); + g_source_set_callback(idle, qio_task_thread_result, task, NULL); + g_source_attach(idle, task->thread->context); =20 return NULL; } @@ -138,17 +141,18 @@ void qio_task_run_in_thread(QIOTask *task, g_main_context_ref(context); } =20 - data->task =3D task; data->worker =3D worker; data->opaque =3D opaque; data->destroy =3D destroy; data->context =3D context; =20 + task->thread =3D data; + trace_qio_task_thread_start(task, worker, opaque); qemu_thread_create(&thread, "io-task-worker", qio_task_thread_worker, - data, + task, QEMU_THREAD_DETACHED); } =20 --=20 2.20.1.519.g8feddda32c From nobody Thu Apr 25 17:50:00 2024 Delivered-To: importer@patchew.org Received-SPF: temperror (zoho.com: Error in retrieving data from DNS) 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; spf=temperror (zoho.com: Error in retrieving data from DNS) 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 (209.51.188.17 [209.51.188.17]) by mx.zohomail.com with SMTPS id 15495560899841006.8808313733089; Thu, 7 Feb 2019 08:14:49 -0800 (PST) Received: from localhost ([127.0.0.1]:42685 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmJy-0005Oz-MT for importer@patchew.org; Thu, 07 Feb 2019 11:14:38 -0500 Received: from eggs.gnu.org ([209.51.188.92]:59750) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmCV-0007jg-Ik for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:56 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1grmCP-0006Ip-5h for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:55 -0500 Received: from mx1.redhat.com ([209.132.183.28]:30857) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1grmCO-00062Q-Nk for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:48 -0500 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 8EC68C050E19; Thu, 7 Feb 2019 16:06:26 +0000 (UTC) Received: from localhost (unknown [10.36.112.15]) by smtp.corp.redhat.com (Postfix) with ESMTP id D97E55C22D; Thu, 7 Feb 2019 16:06:25 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Thu, 7 Feb 2019 17:06:01 +0100 Message-Id: <20190207160617.1142-3-marcandre.lureau@redhat.com> In-Reply-To: <20190207160617.1142-1-marcandre.lureau@redhat.com> References: <20190207160617.1142-1-marcandre.lureau@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 [10.5.110.32]); Thu, 07 Feb 2019 16:06:26 +0000 (UTC) Content-Transfer-Encoding: quoted-printable 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 02/18] io: add qio_task_wait_thread to join with a background thread 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: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Daniel P. Berrang=C3=A9 Add the ability for a caller to wait for completion of the background thread to synchronously dispatch its result, without needing to wait for the main loop to run the idle callback. This method needs very careful usage to avoid a dangerous race condition with the free'ing of the task. The completion callback is normally invoked from an idle callback registered with the main loop context. The qio_task_wait_thread method must only be called if the completion callback has not yet run. The only safe way to achieve this is to run the qio_task_wait_thread method from the thread that executes the main loop. It is generally a bad idea to use this method since it will block execution of the main loop, however, the design of the character devices and its usage from vhostuser already requires blocking execution. Signed-off-by: Daniel P. Berrang=C3=A9 Message-Id: <20190123172740.32452-3-berrange@redhat.com> Reviewed-by: Marc-Andr=C3=A9 Lureau --- include/io/task.h | 29 ++++++++++++++++++++++++++++- io/task.c | 40 ++++++++++++++++++++++++++++++++++++---- io/trace-events | 2 ++ 3 files changed, 66 insertions(+), 5 deletions(-) diff --git a/include/io/task.h b/include/io/task.h index 9e09b95b2e..57d8ba835e 100644 --- a/include/io/task.h +++ b/include/io/task.h @@ -232,7 +232,8 @@ QIOTask *qio_task_new(Object *source, * * Run a task in a background thread. When @worker * returns it will call qio_task_complete() in - * the event thread context that provided. + * the thread that is running the main loop associated + * with @context. */ void qio_task_run_in_thread(QIOTask *task, QIOTaskWorker worker, @@ -240,6 +241,32 @@ void qio_task_run_in_thread(QIOTask *task, GDestroyNotify destroy, GMainContext *context); =20 + +/** + * qio_task_wait_thread: + * @task: the task struct + * + * Wait for completion of a task that was previously + * invoked using qio_task_run_in_thread. This MUST + * ONLY be invoked if the task has not already + * completed, since after the completion callback + * is invoked, @task will have been freed. + * + * To avoid racing with execution of the completion + * callback provided with qio_task_new, this method + * MUST ONLY be invoked from the thread that is + * running the main loop associated with @context + * parameter to qio_task_run_in_thread. + * + * When the thread has completed, the completion + * callback provided to qio_task_new will be invoked. + * When that callback returns @task will be freed, + * so @task must not be referenced after this + * method completes. + */ +void qio_task_wait_thread(QIOTask *task); + + /** * qio_task_complete: * @task: the task struct diff --git a/io/task.c b/io/task.c index 396866b10f..18ddc4afd1 100644 --- a/io/task.c +++ b/io/task.c @@ -29,6 +29,7 @@ struct QIOTaskThreadData { gpointer opaque; GDestroyNotify destroy; GMainContext *context; + GSource *completion; }; =20 =20 @@ -40,6 +41,8 @@ struct QIOTask { Error *err; gpointer result; GDestroyNotify destroyResult; + QemuMutex thread_lock; + QemuCond thread_cond; struct QIOTaskThreadData *thread; }; =20 @@ -58,6 +61,8 @@ QIOTask *qio_task_new(Object *source, task->func =3D func; task->opaque =3D opaque; task->destroy =3D destroy; + qemu_mutex_init(&task->thread_lock); + qemu_cond_init(&task->thread_cond); =20 trace_qio_task_new(task, source, func, opaque); =20 @@ -89,6 +94,9 @@ static void qio_task_free(QIOTask *task) } object_unref(task->source); =20 + qemu_mutex_destroy(&task->thread_lock); + qemu_cond_destroy(&task->thread_cond); + g_free(task); } =20 @@ -98,6 +106,7 @@ static gboolean qio_task_thread_result(gpointer opaque) QIOTask *task =3D opaque; =20 trace_qio_task_thread_result(task); + qio_task_complete(task); =20 return FALSE; @@ -107,7 +116,6 @@ static gboolean qio_task_thread_result(gpointer opaque) static gpointer qio_task_thread_worker(gpointer opaque) { QIOTask *task =3D opaque; - GSource *idle; =20 trace_qio_task_thread_run(task); =20 @@ -120,9 +128,17 @@ static gpointer qio_task_thread_worker(gpointer opaque) */ trace_qio_task_thread_exit(task); =20 - idle =3D g_idle_source_new(); - g_source_set_callback(idle, qio_task_thread_result, task, NULL); - g_source_attach(idle, task->thread->context); + qemu_mutex_lock(&task->thread_lock); + + task->thread->completion =3D g_idle_source_new(); + g_source_set_callback(task->thread->completion, + qio_task_thread_result, task, NULL); + g_source_attach(task->thread->completion, + task->thread->context); + trace_qio_task_thread_source_attach(task, task->thread->completion); + + qemu_cond_signal(&task->thread_cond); + qemu_mutex_unlock(&task->thread_lock); =20 return NULL; } @@ -157,6 +173,22 @@ void qio_task_run_in_thread(QIOTask *task, } =20 =20 +void qio_task_wait_thread(QIOTask *task) +{ + qemu_mutex_lock(&task->thread_lock); + g_assert(task->thread !=3D NULL); + while (task->thread->completion =3D=3D NULL) { + qemu_cond_wait(&task->thread_cond, &task->thread_lock); + } + + trace_qio_task_thread_source_cancel(task, task->thread->completion); + g_source_destroy(task->thread->completion); + qemu_mutex_unlock(&task->thread_lock); + + qio_task_thread_result(task); +} + + void qio_task_complete(QIOTask *task) { task->func(task, task->opaque); diff --git a/io/trace-events b/io/trace-events index f70bad7cbe..07a7bbec6a 100644 --- a/io/trace-events +++ b/io/trace-events @@ -7,6 +7,8 @@ qio_task_thread_start(void *task, void *worker, void *opaqu= e) "Task thread start qio_task_thread_run(void *task) "Task thread run task=3D%p" qio_task_thread_exit(void *task) "Task thread exit task=3D%p" qio_task_thread_result(void *task) "Task thread result task=3D%p" +qio_task_thread_source_attach(void *task, void *source) "Task thread sourc= e attach task=3D%p source=3D%p" +qio_task_thread_source_cancel(void *task, void *source) "Task thread sourc= e cancel task=3D%p source=3D%p" =20 # io/channel-socket.c qio_channel_socket_new(void *ioc) "Socket new ioc=3D%p" --=20 2.20.1.519.g8feddda32c From nobody Thu Apr 25 17:50:00 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.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; spf=pass (zoho.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 1549555920501865.9938287427353; Thu, 7 Feb 2019 08:12:00 -0800 (PST) Received: from localhost ([127.0.0.1]:42650 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmHN-000346-Cn for importer@patchew.org; Thu, 07 Feb 2019 11:11:57 -0500 Received: from eggs.gnu.org ([209.51.188.92]:59702) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmCR-0007g3-W9 for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:53 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1grmCP-0006Jx-6s for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:51 -0500 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 1grmCO-00063o-Ox for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:49 -0500 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id CE414E6A67; Thu, 7 Feb 2019 16:06:28 +0000 (UTC) Received: from localhost (unknown [10.36.112.15]) by smtp.corp.redhat.com (Postfix) with ESMTP id 441B44145; Thu, 7 Feb 2019 16:06:27 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Thu, 7 Feb 2019 17:06:02 +0100 Message-Id: <20190207160617.1142-4-marcandre.lureau@redhat.com> In-Reply-To: <20190207160617.1142-1-marcandre.lureau@redhat.com> References: <20190207160617.1142-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Thu, 07 Feb 2019 16:06:28 +0000 (UTC) Content-Transfer-Encoding: quoted-printable 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 03/18] chardev: fix validation of options for QMP created chardevs 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: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Paolo Bonzini , peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Daniel P. Berrang=C3=A9 The TLS creds option is not valid with certain address types. The user config was only checked for errors when parsing legacy QemuOpts, thus the user could pass unsupported values via QMP. Pull all code for validating options out into a new method qmp_chardev_validate_socket, that is called from the main qmp_chardev_open_socket method. This adds a missing check for rejecting TLS creds with the vsock address type. Reviewed-by: Marc-Andr=C3=A9 Lureau Signed-off-by: Daniel P. Berrang=C3=A9 Message-Id: <20190123172740.32452-4-berrange@redhat.com> --- chardev/char-socket.c | 92 +++++++++++++++++++++++++++++++------------ 1 file changed, 66 insertions(+), 26 deletions(-) diff --git a/chardev/char-socket.c b/chardev/char-socket.c index eaa8e8b68f..e85250b624 100644 --- a/chardev/char-socket.c +++ b/chardev/char-socket.c @@ -987,6 +987,65 @@ static gboolean socket_reconnect_timeout(gpointer opaq= ue) return false; } =20 + +static bool qmp_chardev_validate_socket(ChardevSocket *sock, + SocketAddress *addr, + Error **errp) +{ + /* Validate any options which have a dependency on address type */ + switch (addr->type) { + case SOCKET_ADDRESS_TYPE_FD: + if (sock->has_reconnect) { + error_setg(errp, + "'reconnect' option is incompatible with " + "'fd' address type"); + return false; + } + if (sock->has_tls_creds && + !(sock->has_server && sock->server)) { + error_setg(errp, + "'tls_creds' option is incompatible with " + "'fd' address type as client"); + return false; + } + break; + + case SOCKET_ADDRESS_TYPE_UNIX: + if (sock->has_tls_creds) { + error_setg(errp, + "'tls_creds' option is incompatible with " + "'unix' address type"); + return false; + } + break; + + case SOCKET_ADDRESS_TYPE_INET: + break; + + case SOCKET_ADDRESS_TYPE_VSOCK: + if (sock->has_tls_creds) { + error_setg(errp, + "'tls_creds' option is incompatible with " + "'vsock' address type"); + return false; + } + + default: + break; + } + + /* Validate any options which have a dependancy on client vs server */ + if (!(sock->has_server && sock->server)) { + if (sock->has_websocket && sock->websocket) { + error_setg(errp, "%s", "Websocket client is not implemented"); + return false; + } + } + + return true; +} + + static void qmp_chardev_open_socket(Chardev *chr, ChardevBackend *backend, bool *be_opened, @@ -1004,11 +1063,6 @@ static void qmp_chardev_open_socket(Chardev *chr, QIOChannelSocket *sioc =3D NULL; SocketAddress *addr; =20 - if (!is_listen && is_websock) { - error_setg(errp, "%s", "Websocket client is not implemented"); - goto error; - } - s->is_listen =3D is_listen; s->is_telnet =3D is_telnet; s->is_tn3270 =3D is_tn3270; @@ -1049,10 +1103,10 @@ static void qmp_chardev_open_socket(Chardev *chr, =20 s->addr =3D addr =3D socket_address_flatten(sock->addr); =20 - if (sock->has_reconnect && addr->type =3D=3D SOCKET_ADDRESS_TYPE_FD) { - error_setg(errp, "'reconnect' option is incompatible with 'fd'"); + if (!qmp_chardev_validate_socket(sock, addr, errp)) { goto error; } + qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_RECONNECTABLE); /* TODO SOCKET_ADDRESS_FD where fd has AF_UNIX */ if (addr->type =3D=3D SOCKET_ADDRESS_TYPE_UNIX) { @@ -1140,27 +1194,12 @@ static void qemu_chr_parse_socket(QemuOpts *opts, C= hardevBackend *backend, return; } =20 - backend->type =3D CHARDEV_BACKEND_KIND_SOCKET; - if (path) { - if (tls_creds) { - error_setg(errp, "TLS can only be used over TCP socket"); - return; - } - } else if (host) { - if (!port) { - error_setg(errp, "chardev: socket: no port given"); - return; - } - } else if (fd) { - /* We don't know what host to validate against when in client mode= */ - if (tls_creds && !is_listen) { - error_setg(errp, "TLS can not be used with pre-opened client F= D"); - return; - } - } else { - g_assert_not_reached(); + if (host && !port) { + error_setg(errp, "chardev: socket: no port given"); + return; } =20 + backend->type =3D CHARDEV_BACKEND_KIND_SOCKET; sock =3D backend->u.socket.data =3D g_new0(ChardevSocket, 1); qemu_chr_parse_common(opts, qapi_ChardevSocket_base(sock)); =20 @@ -1178,6 +1217,7 @@ static void qemu_chr_parse_socket(QemuOpts *opts, Cha= rdevBackend *backend, sock->wait =3D is_waitconnect; sock->has_reconnect =3D qemu_opt_find(opts, "reconnect"); sock->reconnect =3D reconnect; + sock->has_tls_creds =3D tls_creds; sock->tls_creds =3D g_strdup(tls_creds); =20 addr =3D g_new0(SocketAddressLegacy, 1); --=20 2.20.1.519.g8feddda32c From nobody Thu Apr 25 17:50:00 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.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; spf=pass (zoho.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 (209.51.188.17 [209.51.188.17]) by mx.zohomail.com with SMTPS id 1549555758221887.9086125599852; Thu, 7 Feb 2019 08:09:18 -0800 (PST) Received: from localhost ([127.0.0.1]:42600 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmEa-0000Xl-2d for importer@patchew.org; Thu, 07 Feb 2019 11:09:04 -0500 Received: from eggs.gnu.org ([209.51.188.92]:59746) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmCV-0007jb-FC for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:56 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1grmCP-0006II-06 for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:55 -0500 Received: from mx1.redhat.com ([209.132.183.28]:37388) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1grmCO-00064l-M4 for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:48 -0500 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id B33D33680B; Thu, 7 Feb 2019 16:06:30 +0000 (UTC) Received: from localhost (unknown [10.36.112.15]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3346653B00; Thu, 7 Feb 2019 16:06:30 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Thu, 7 Feb 2019 17:06:03 +0100 Message-Id: <20190207160617.1142-5-marcandre.lureau@redhat.com> In-Reply-To: <20190207160617.1142-1-marcandre.lureau@redhat.com> References: <20190207160617.1142-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Thu, 07 Feb 2019 16:06:30 +0000 (UTC) Content-Transfer-Encoding: quoted-printable 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 04/18] chardev: forbid 'reconnect' option with server sockets 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: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Paolo Bonzini , peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Daniel P. Berrang=C3=A9 The 'reconnect' option is used to give the sleep time, in seconds, before a client socket attempts to re-establish a connection to the server. It does not make sense to set this for server sockets, as they will always accept a new client connection immediately after the previous one went away. Reviewed-by: Marc-Andr=C3=A9 Lureau Reviewed-by: Thomas Huth Signed-off-by: Daniel P. Berrang=C3=A9 Message-Id: <20190123172740.32452-5-berrange@redhat.com> --- chardev/char-socket.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/chardev/char-socket.c b/chardev/char-socket.c index e85250b624..743b7b11cd 100644 --- a/chardev/char-socket.c +++ b/chardev/char-socket.c @@ -1035,7 +1035,14 @@ static bool qmp_chardev_validate_socket(ChardevSocke= t *sock, } =20 /* Validate any options which have a dependancy on client vs server */ - if (!(sock->has_server && sock->server)) { + if (!sock->has_server || sock->server) { + if (sock->has_reconnect) { + error_setg(errp, + "'reconnect' option is incompatible with " + "socket in server listen mode"); + return false; + } + } else { if (sock->has_websocket && sock->websocket) { error_setg(errp, "%s", "Websocket client is not implemented"); return false; --=20 2.20.1.519.g8feddda32c From nobody Thu Apr 25 17:50:00 2024 Delivered-To: importer@patchew.org Received-SPF: temperror (zoho.com: Error in retrieving data from DNS) 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; spf=temperror (zoho.com: Error in retrieving data from DNS) 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 (209.51.188.17 [209.51.188.17]) by mx.zohomail.com with SMTPS id 1549556090606225.89645598322988; Thu, 7 Feb 2019 08:14:50 -0800 (PST) Received: from localhost ([127.0.0.1]:42683 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmJy-0005O4-6K for importer@patchew.org; Thu, 07 Feb 2019 11:14:38 -0500 Received: from eggs.gnu.org ([209.51.188.92]:59731) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmCT-0007hZ-Ec for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:54 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1grmCO-0006Hc-J0 for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:53 -0500 Received: from mx1.redhat.com ([209.132.183.28]:54022) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1grmCK-000663-KK for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:48 -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 mx1.redhat.com (Postfix) with ESMTPS id 1C8CF89ACB; Thu, 7 Feb 2019 16:06:33 +0000 (UTC) Received: from localhost (unknown [10.36.112.15]) by smtp.corp.redhat.com (Postfix) with ESMTP id 691AF6013E; Thu, 7 Feb 2019 16:06:32 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Thu, 7 Feb 2019 17:06:04 +0100 Message-Id: <20190207160617.1142-6-marcandre.lureau@redhat.com> In-Reply-To: <20190207160617.1142-1-marcandre.lureau@redhat.com> References: <20190207160617.1142-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Thu, 07 Feb 2019 16:06:33 +0000 (UTC) Content-Transfer-Encoding: quoted-printable 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 05/18] chardev: forbid 'wait' option with client sockets 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: Laurent Vivier , peter.maydell@linaro.org, Thomas Huth , Paolo Bonzini , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Daniel P. Berrang=C3=A9 The 'wait'/'nowait' parameter is used to tell server sockets whether to block until a client is accepted during initialization. Client chardevs have always silently ignored this option. Various tests were mistakenly passing this option for their client chardevs. Reviewed-by: Marc-Andr=C3=A9 Lureau Reviewed-by: Thomas Huth Signed-off-by: Daniel P. Berrang=C3=A9 Message-Id: <20190123172740.32452-6-berrange@redhat.com> --- chardev/char-socket.c | 12 +++++++++++- tests/ivshmem-test.c | 2 +- tests/libqtest.c | 4 ++-- tests/test-filter-redirector.c | 4 ++-- 4 files changed, 16 insertions(+), 6 deletions(-) diff --git a/chardev/char-socket.c b/chardev/char-socket.c index 743b7b11cd..728342dc9f 100644 --- a/chardev/char-socket.c +++ b/chardev/char-socket.c @@ -1047,6 +1047,12 @@ static bool qmp_chardev_validate_socket(ChardevSocke= t *sock, error_setg(errp, "%s", "Websocket client is not implemented"); return false; } + if (sock->has_wait) { + error_setg(errp, "%s", + "'wait' option is incompatible with " + "socket in client connect mode"); + return false; + } } =20 return true; @@ -1220,7 +1226,11 @@ static void qemu_chr_parse_socket(QemuOpts *opts, Ch= ardevBackend *backend, sock->tn3270 =3D is_tn3270; sock->has_websocket =3D true; sock->websocket =3D is_websock; - sock->has_wait =3D true; + /* + * We have different default to QMP for 'wait' when 'server' + * is set, hence we can't just check for existence of 'wait' + */ + sock->has_wait =3D qemu_opt_find(opts, "wait") || is_listen; sock->wait =3D is_waitconnect; sock->has_reconnect =3D qemu_opt_find(opts, "reconnect"); sock->reconnect =3D reconnect; diff --git a/tests/ivshmem-test.c b/tests/ivshmem-test.c index 4911b69317..942ddc9192 100644 --- a/tests/ivshmem-test.c +++ b/tests/ivshmem-test.c @@ -295,7 +295,7 @@ static void setup_vm_with_server(IVState *s, int nvecto= rs) { char *cmd; =20 - cmd =3D g_strdup_printf("-chardev socket,id=3Dchr0,path=3D%s,nowait " + cmd =3D g_strdup_printf("-chardev socket,id=3Dchr0,path=3D%s " "-device ivshmem-doorbell,chardev=3Dchr0,vectors= =3D%d", tmpserver, nvectors); =20 diff --git a/tests/libqtest.c b/tests/libqtest.c index 6fb30855fa..c49b85482d 100644 --- a/tests/libqtest.c +++ b/tests/libqtest.c @@ -232,9 +232,9 @@ QTestState *qtest_init_without_qmp_handshake(const char= *extra_args) qtest_add_abrt_handler(kill_qemu_hook_func, s); =20 command =3D g_strdup_printf("exec %s " - "-qtest unix:%s,nowait " + "-qtest unix:%s " "-qtest-log %s " - "-chardev socket,path=3D%s,nowait,id=3Dchar0= " + "-chardev socket,path=3D%s,id=3Dchar0 " "-mon chardev=3Dchar0,mode=3Dcontrol " "-machine accel=3Dqtest " "-display none " diff --git a/tests/test-filter-redirector.c b/tests/test-filter-redirector.c index 9ca9feabf8..6dc21dd4fb 100644 --- a/tests/test-filter-redirector.c +++ b/tests/test-filter-redirector.c @@ -96,7 +96,7 @@ static void test_redirector_tx(void) "-device %s,netdev=3Dqtest-bn0,id=3Dqtest-e0 " "-chardev socket,id=3Dredirector0,path=3D%s,server,nowait " "-chardev socket,id=3Dredirector1,path=3D%s,server,nowait " - "-chardev socket,id=3Dredirector2,path=3D%s,nowait " + "-chardev socket,id=3Dredirector2,path=3D%s " "-object filter-redirector,id=3Dqtest-f0,netdev=3Dqtest-bn0," "queue=3Dtx,outdev=3Dredirector0 " "-object filter-redirector,id=3Dqtest-f1,netdev=3Dqtest-bn0," @@ -166,7 +166,7 @@ static void test_redirector_rx(void) "-device %s,netdev=3Dqtest-bn0,id=3Dqtest-e0 " "-chardev socket,id=3Dredirector0,path=3D%s,server,nowait " "-chardev socket,id=3Dredirector1,path=3D%s,server,nowait " - "-chardev socket,id=3Dredirector2,path=3D%s,nowait " + "-chardev socket,id=3Dredirector2,path=3D%s " "-object filter-redirector,id=3Dqtest-f0,netdev=3Dqtest-bn0," "queue=3Drx,indev=3Dredirector0 " "-object filter-redirector,id=3Dqtest-f1,netdev=3Dqtest-bn0," --=20 2.20.1.519.g8feddda32c From nobody Thu Apr 25 17:50:00 2024 Delivered-To: importer@patchew.org Received-SPF: temperror (zoho.com: Error in retrieving data from DNS) 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; spf=temperror (zoho.com: Error in retrieving data from DNS) 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 (209.51.188.17 [209.51.188.17]) by mx.zohomail.com with SMTPS id 15495557574211016.3003144249972; Thu, 7 Feb 2019 08:09:17 -0800 (PST) Received: from localhost ([127.0.0.1]:42596 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmEc-0000Wg-31 for importer@patchew.org; Thu, 07 Feb 2019 11:09:06 -0500 Received: from eggs.gnu.org ([209.51.188.92]:59653) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmCR-0007dQ-39 for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:52 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1grmCO-0006I9-Rm for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:49 -0500 Received: from mx1.redhat.com ([209.132.183.28]:33808) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1grmCO-000681-I6 for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:48 -0500 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 63D22C050939; Thu, 7 Feb 2019 16:06:35 +0000 (UTC) Received: from localhost (unknown [10.36.112.15]) by smtp.corp.redhat.com (Postfix) with ESMTP id D760D4145; Thu, 7 Feb 2019 16:06:34 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Thu, 7 Feb 2019 17:06:05 +0100 Message-Id: <20190207160617.1142-7-marcandre.lureau@redhat.com> In-Reply-To: <20190207160617.1142-1-marcandre.lureau@redhat.com> References: <20190207160617.1142-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Thu, 07 Feb 2019 16:06:35 +0000 (UTC) Content-Transfer-Encoding: quoted-printable 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 06/18] chardev: remove many local variables in qemu_chr_parse_socket 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: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Paolo Bonzini , peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Daniel P. Berrang=C3=A9 Now that all validation is separated off into a separate method, we can directly populate the ChardevSocket struct from the QemuOpts values, avoiding many local variables. Reviewed-by: Marc-Andr=C3=A9 Lureau Signed-off-by: Daniel P. Berrang=C3=A9 Message-Id: <20190123172740.32452-7-berrange@redhat.com> --- chardev/char-socket.c | 40 ++++++++++++++++++---------------------- 1 file changed, 18 insertions(+), 22 deletions(-) diff --git a/chardev/char-socket.c b/chardev/char-socket.c index 728342dc9f..8a6e203da7 100644 --- a/chardev/char-socket.c +++ b/chardev/char-socket.c @@ -1186,18 +1186,10 @@ error: static void qemu_chr_parse_socket(QemuOpts *opts, ChardevBackend *backend, Error **errp) { - bool is_listen =3D qemu_opt_get_bool(opts, "server", false); - bool is_waitconnect =3D is_listen && qemu_opt_get_bool(opts, "wait", t= rue); - bool is_telnet =3D qemu_opt_get_bool(opts, "telnet", false); - bool is_tn3270 =3D qemu_opt_get_bool(opts, "tn3270", false); - bool is_websock =3D qemu_opt_get_bool(opts, "websocket", false); - bool do_nodelay =3D !qemu_opt_get_bool(opts, "delay", true); - int64_t reconnect =3D qemu_opt_get_number(opts, "reconnect", 0); const char *path =3D qemu_opt_get(opts, "path"); const char *host =3D qemu_opt_get(opts, "host"); const char *port =3D qemu_opt_get(opts, "port"); const char *fd =3D qemu_opt_get(opts, "fd"); - const char *tls_creds =3D qemu_opt_get(opts, "tls-creds"); SocketAddressLegacy *addr; ChardevSocket *sock; =20 @@ -1216,26 +1208,30 @@ static void qemu_chr_parse_socket(QemuOpts *opts, C= hardevBackend *backend, sock =3D backend->u.socket.data =3D g_new0(ChardevSocket, 1); qemu_chr_parse_common(opts, qapi_ChardevSocket_base(sock)); =20 - sock->has_nodelay =3D true; - sock->nodelay =3D do_nodelay; + sock->has_nodelay =3D qemu_opt_get(opts, "delay"); + sock->nodelay =3D !qemu_opt_get_bool(opts, "delay", true); + /* + * We have different default to QMP for 'server', hence + * we can't just check for existence of 'server' + */ sock->has_server =3D true; - sock->server =3D is_listen; - sock->has_telnet =3D true; - sock->telnet =3D is_telnet; - sock->has_tn3270 =3D true; - sock->tn3270 =3D is_tn3270; - sock->has_websocket =3D true; - sock->websocket =3D is_websock; + sock->server =3D qemu_opt_get_bool(opts, "server", false); + sock->has_telnet =3D qemu_opt_get(opts, "telnet"); + sock->telnet =3D qemu_opt_get_bool(opts, "telnet", false); + sock->has_tn3270 =3D qemu_opt_get(opts, "tn3270"); + sock->tn3270 =3D qemu_opt_get_bool(opts, "tn3270", false); + sock->has_websocket =3D qemu_opt_get(opts, "websocket"); + sock->websocket =3D qemu_opt_get_bool(opts, "websocket", false); /* * We have different default to QMP for 'wait' when 'server' * is set, hence we can't just check for existence of 'wait' */ - sock->has_wait =3D qemu_opt_find(opts, "wait") || is_listen; - sock->wait =3D is_waitconnect; + sock->has_wait =3D qemu_opt_find(opts, "wait") || sock->server; + sock->wait =3D qemu_opt_get_bool(opts, "wait", true); sock->has_reconnect =3D qemu_opt_find(opts, "reconnect"); - sock->reconnect =3D reconnect; - sock->has_tls_creds =3D tls_creds; - sock->tls_creds =3D g_strdup(tls_creds); + sock->reconnect =3D qemu_opt_get_number(opts, "reconnect", 0); + sock->has_tls_creds =3D qemu_opt_get(opts, "tls-creds"); + sock->tls_creds =3D g_strdup(qemu_opt_get(opts, "tls-creds")); =20 addr =3D g_new0(SocketAddressLegacy, 1); if (path) { --=20 2.20.1.519.g8feddda32c From nobody Thu Apr 25 17:50:00 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.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; spf=pass (zoho.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 1549555917423950.4829092458226; Thu, 7 Feb 2019 08:11:57 -0800 (PST) Received: from localhost ([127.0.0.1]:42648 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmHM-00032e-7n for importer@patchew.org; Thu, 07 Feb 2019 11:11:56 -0500 Received: from eggs.gnu.org ([209.51.188.92]:59655) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmCR-0007dS-3E for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:56 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1grmCP-0006Id-1V for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:49 -0500 Received: from mx1.redhat.com ([209.132.183.28]:54066) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1grmCO-00069b-NX for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:48 -0500 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 C103389AD3; Thu, 7 Feb 2019 16:06:37 +0000 (UTC) Received: from localhost (unknown [10.36.112.15]) by smtp.corp.redhat.com (Postfix) with ESMTP id 52AAF5C1B2; Thu, 7 Feb 2019 16:06:36 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Thu, 7 Feb 2019 17:06:06 +0100 Message-Id: <20190207160617.1142-8-marcandre.lureau@redhat.com> In-Reply-To: <20190207160617.1142-1-marcandre.lureau@redhat.com> References: <20190207160617.1142-1-marcandre.lureau@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 [10.5.110.26]); Thu, 07 Feb 2019 16:06:37 +0000 (UTC) Content-Transfer-Encoding: quoted-printable 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 07/18] chardev: ensure qemu_chr_parse_compat reports missing driver error 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: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Paolo Bonzini , peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Daniel P. Berrang=C3=A9 If no valid char driver was identified the qemu_chr_parse_compat method was silent, leaving callers no clue what failed. Signed-off-by: Daniel P. Berrang=C3=A9 Message-Id: <20190123172740.32452-8-berrange@redhat.com> Reviewed-by: Marc-Andr=C3=A9 Lureau --- chardev/char.c | 2 ++ tests/test-char.c | 3 ++- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/chardev/char.c b/chardev/char.c index ccba36bafb..b99f3692f7 100644 --- a/chardev/char.c +++ b/chardev/char.c @@ -490,6 +490,8 @@ QemuOpts *qemu_chr_parse_compat(const char *label, cons= t char *filename, return opts; } =20 + error_report("'%s' is not a valid char driver", filename); + fail: qemu_opts_del(opts); return NULL; diff --git a/tests/test-char.c b/tests/test-char.c index 19c3efad72..89c43e4ada 100644 --- a/tests/test-char.c +++ b/tests/test-char.c @@ -856,9 +856,10 @@ static void char_null_test(void) static void char_invalid_test(void) { Chardev *chr; - + g_setenv("QTEST_SILENT_ERRORS", "1", 1); chr =3D qemu_chr_new("label-invalid", "invalid"); g_assert_null(chr); + g_unsetenv("QTEST_SILENT_ERRORS"); } =20 static int chardev_change(void *opaque) --=20 2.20.1.519.g8feddda32c From nobody Thu Apr 25 17:50:00 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.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; spf=pass (zoho.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 1549556270912144.80477598086463; Thu, 7 Feb 2019 08:17:50 -0800 (PST) Received: from localhost ([127.0.0.1]:42741 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmN1-0007ta-Oi for importer@patchew.org; Thu, 07 Feb 2019 11:17:47 -0500 Received: from eggs.gnu.org ([209.51.188.92]:59654) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmCR-0007dR-3D for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:57 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1grmCO-0006I2-R2 for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:49 -0500 Received: from mx1.redhat.com ([209.132.183.28]:55680) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1grmCO-0006EV-Gm for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:48 -0500 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 26C196697D; Thu, 7 Feb 2019 16:06:44 +0000 (UTC) Received: from localhost (unknown [10.36.112.15]) by smtp.corp.redhat.com (Postfix) with ESMTP id 325C467621; Thu, 7 Feb 2019 16:06:39 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Thu, 7 Feb 2019 17:06:07 +0100 Message-Id: <20190207160617.1142-9-marcandre.lureau@redhat.com> In-Reply-To: <20190207160617.1142-1-marcandre.lureau@redhat.com> References: <20190207160617.1142-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Thu, 07 Feb 2019 16:06:44 +0000 (UTC) Content-Transfer-Encoding: quoted-printable 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 08/18] chardev: remove unused 'sioc' variable & cleanup paths 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: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Paolo Bonzini , peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Daniel P. Berrang=C3=A9 The 'sioc' variable in qmp_chardev_open_socket was unused since commit 3e7d4d20d3a528b1ed10b1dc3d83119bfb0c5f24 Author: Peter Xu Date: Tue Mar 6 13:33:17 2018 +0800 chardev: use chardev's gcontext for async connect Reviewed-by: Marc-Andr=C3=A9 Lureau Reviewed-by: Thomas Huth Signed-off-by: Daniel P. Berrang=C3=A9 Message-Id: <20190123172740.32452-9-berrange@redhat.com> --- chardev/char-socket.c | 22 +++++++--------------- 1 file changed, 7 insertions(+), 15 deletions(-) diff --git a/chardev/char-socket.c b/chardev/char-socket.c index 8a6e203da7..8a5e5c2fe7 100644 --- a/chardev/char-socket.c +++ b/chardev/char-socket.c @@ -1073,7 +1073,6 @@ static void qmp_chardev_open_socket(Chardev *chr, bool is_waitconnect =3D sock->has_wait ? sock->wait : false; bool is_websock =3D sock->has_websocket ? sock->websocket : false; int64_t reconnect =3D sock->has_reconnect ? sock->reconnect : 0; - QIOChannelSocket *sioc =3D NULL; SocketAddress *addr; =20 s->is_listen =3D is_listen; @@ -1088,7 +1087,7 @@ static void qmp_chardev_open_socket(Chardev *chr, if (!creds) { error_setg(errp, "No TLS credentials with id '%s'", sock->tls_creds); - goto error; + return; } s->tls_creds =3D (QCryptoTLSCreds *) object_dynamic_cast(creds, @@ -1096,20 +1095,20 @@ static void qmp_chardev_open_socket(Chardev *chr, if (!s->tls_creds) { error_setg(errp, "Object with id '%s' is not TLS credentials", sock->tls_creds); - goto error; + return; } object_ref(OBJECT(s->tls_creds)); if (is_listen) { if (s->tls_creds->endpoint !=3D QCRYPTO_TLS_CREDS_ENDPOINT_SER= VER) { error_setg(errp, "%s", "Expected TLS credentials for server endpoint"); - goto error; + return; } } else { if (s->tls_creds->endpoint !=3D QCRYPTO_TLS_CREDS_ENDPOINT_CLI= ENT) { error_setg(errp, "%s", "Expected TLS credentials for client endpoint"); - goto error; + return; } } } @@ -1117,7 +1116,7 @@ static void qmp_chardev_open_socket(Chardev *chr, s->addr =3D addr =3D socket_address_flatten(sock->addr); =20 if (!qmp_chardev_validate_socket(sock, addr, errp)) { - goto error; + return; } =20 qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_RECONNECTABLE); @@ -1153,7 +1152,7 @@ static void qmp_chardev_open_socket(Chardev *chr, if (qio_net_listener_open_sync(s->listener, s->addr, errp) < 0= ) { object_unref(OBJECT(s->listener)); s->listener =3D NULL; - goto error; + return; } =20 qapi_free_SocketAddress(s->addr); @@ -1171,16 +1170,9 @@ static void qmp_chardev_open_socket(Chardev *chr, chr->gcontext); } } else if (qemu_chr_wait_connected(chr, errp) < 0) { - goto error; + return; } } - - return; - -error: - if (sioc) { - object_unref(OBJECT(sioc)); - } } =20 static void qemu_chr_parse_socket(QemuOpts *opts, ChardevBackend *backend, --=20 2.20.1.519.g8feddda32c From nobody Thu Apr 25 17:50:00 2024 Delivered-To: importer@patchew.org Received-SPF: temperror (zoho.com: Error in retrieving data from DNS) 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; spf=temperror (zoho.com: Error in retrieving data from DNS) 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 (209.51.188.17 [209.51.188.17]) by mx.zohomail.com with SMTPS id 1549555753951146.5750530253231; Thu, 7 Feb 2019 08:09:13 -0800 (PST) Received: from localhost ([127.0.0.1]:42594 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmEY-0000VR-4f for importer@patchew.org; Thu, 07 Feb 2019 11:09:02 -0500 Received: from eggs.gnu.org ([209.51.188.92]:59687) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmCR-0007dg-CD for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:52 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1grmCQ-0006LM-3t for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:51 -0500 Received: from mx1.redhat.com ([209.132.183.28]:34986) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1grmCP-0006Ih-Q3 for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:50 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id D41007AE83; Thu, 7 Feb 2019 16:06:48 +0000 (UTC) Received: from localhost (unknown [10.36.112.15]) by smtp.corp.redhat.com (Postfix) with ESMTP id 0D7686155B; Thu, 7 Feb 2019 16:06:45 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Thu, 7 Feb 2019 17:06:08 +0100 Message-Id: <20190207160617.1142-10-marcandre.lureau@redhat.com> In-Reply-To: <20190207160617.1142-1-marcandre.lureau@redhat.com> References: <20190207160617.1142-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Thu, 07 Feb 2019 16:06:48 +0000 (UTC) Content-Transfer-Encoding: quoted-printable 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 09/18] chardev: split tcp_chr_wait_connected into two methods 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: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Paolo Bonzini , peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Daniel P. Berrang=C3=A9 The tcp_chr_wait_connected method can deal with either server or client chardevs, but some callers only care about one of these possibilities. The tcp_chr_wait_connected method will also need some refactoring to reliably deal with its primary goal of allowing a device frontend to wait for an established connection, which will interfere with other callers. Split it into two methods, one responsible for server initiated connections, the other responsible for client initiated connections. In doing this split the tcp_char_connect_async() method is renamed to become consistent with naming of the new methods. Reviewed-by: Marc-Andr=C3=A9 Lureau Signed-off-by: Daniel P. Berrang=C3=A9 Message-Id: <20190123172740.32452-10-berrange@redhat.com> --- chardev/char-socket.c | 59 +++++++++++++++++++++++++++---------------- 1 file changed, 37 insertions(+), 22 deletions(-) diff --git a/chardev/char-socket.c b/chardev/char-socket.c index 8a5e5c2fe7..222adbbad3 100644 --- a/chardev/char-socket.c +++ b/chardev/char-socket.c @@ -886,30 +886,47 @@ static void tcp_chr_accept(QIONetListener *listener, tcp_chr_new_client(chr, cioc); } =20 -static int tcp_chr_wait_connected(Chardev *chr, Error **errp) + +static int tcp_chr_connect_client_sync(Chardev *chr, Error **errp) +{ + SocketChardev *s =3D SOCKET_CHARDEV(chr); + QIOChannelSocket *sioc =3D qio_channel_socket_new(); + tcp_chr_set_client_ioc_name(chr, sioc); + if (qio_channel_socket_connect_sync(sioc, s->addr, errp) < 0) { + object_unref(OBJECT(sioc)); + return -1; + } + tcp_chr_new_client(chr, sioc); + object_unref(OBJECT(sioc)); + return 0; +} + + +static void tcp_chr_accept_server_sync(Chardev *chr) { SocketChardev *s =3D SOCKET_CHARDEV(chr); QIOChannelSocket *sioc; + info_report("QEMU waiting for connection on: %s", + chr->filename); + sioc =3D qio_net_listener_wait_client(s->listener); + tcp_chr_set_client_ioc_name(chr, sioc); + tcp_chr_new_client(chr, sioc); + object_unref(OBJECT(sioc)); +} + =20 +static int tcp_chr_wait_connected(Chardev *chr, Error **errp) +{ + SocketChardev *s =3D SOCKET_CHARDEV(chr); /* It can't wait on s->connected, since it is set asynchronously * in TLS and telnet cases, only wait for an accepted socket */ while (!s->ioc) { if (s->is_listen) { - info_report("QEMU waiting for connection on: %s", - chr->filename); - sioc =3D qio_net_listener_wait_client(s->listener); - tcp_chr_set_client_ioc_name(chr, sioc); - tcp_chr_new_client(chr, sioc); - object_unref(OBJECT(sioc)); + tcp_chr_accept_server_sync(chr); } else { - sioc =3D qio_channel_socket_new(); - tcp_chr_set_client_ioc_name(chr, sioc); - if (qio_channel_socket_connect_sync(sioc, s->addr, errp) < 0) { - object_unref(OBJECT(sioc)); + if (tcp_chr_connect_client_sync(chr, errp) < 0) { return -1; } - tcp_chr_new_client(chr, sioc); - object_unref(OBJECT(sioc)); } } =20 @@ -958,7 +975,7 @@ cleanup: object_unref(OBJECT(sioc)); } =20 -static void tcp_chr_connect_async(Chardev *chr) +static void tcp_chr_connect_client_async(Chardev *chr) { SocketChardev *s =3D SOCKET_CHARDEV(chr); QIOChannelSocket *sioc; @@ -982,7 +999,7 @@ static gboolean socket_reconnect_timeout(gpointer opaqu= e) return false; } =20 - tcp_chr_connect_async(chr); + tcp_chr_connect_client_async(chr); =20 return false; } @@ -1139,7 +1156,7 @@ static void qmp_chardev_open_socket(Chardev *chr, } =20 if (s->reconnect_time) { - tcp_chr_connect_async(chr); + tcp_chr_connect_client_async(chr); } else { if (s->is_listen) { char *name; @@ -1159,17 +1176,15 @@ static void qmp_chardev_open_socket(Chardev *chr, s->addr =3D socket_local_address(s->listener->sioc[0]->fd, err= p); update_disconnected_filename(s); =20 - if (is_waitconnect && - qemu_chr_wait_connected(chr, errp) < 0) { - return; - } - if (!s->ioc) { + if (is_waitconnect) { + tcp_chr_accept_server_sync(chr); + } else { qio_net_listener_set_client_func_full(s->listener, tcp_chr_accept, chr, NULL, chr->gcontext); } - } else if (qemu_chr_wait_connected(chr, errp) < 0) { + } else if (tcp_chr_connect_client_sync(chr, errp) < 0) { return; } } --=20 2.20.1.519.g8feddda32c From nobody Thu Apr 25 17:50:00 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.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; spf=pass (zoho.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 1549555922047891.3938707969576; Thu, 7 Feb 2019 08:12:02 -0800 (PST) Received: from localhost ([127.0.0.1]:42652 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmHO-00035S-VW for importer@patchew.org; Thu, 07 Feb 2019 11:11:59 -0500 Received: from eggs.gnu.org ([209.51.188.92]:59728) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmCT-0007hV-Dd for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:54 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1grmCS-0006OS-5x for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:53 -0500 Received: from mx1.redhat.com ([209.132.183.28]:56652) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1grmCR-0006MP-Rr for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:52 -0500 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 0145CC056839; Thu, 7 Feb 2019 16:06:51 +0000 (UTC) Received: from localhost (unknown [10.36.112.15]) by smtp.corp.redhat.com (Postfix) with ESMTP id 70D3B60C54; Thu, 7 Feb 2019 16:06:50 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Thu, 7 Feb 2019 17:06:09 +0100 Message-Id: <20190207160617.1142-11-marcandre.lureau@redhat.com> In-Reply-To: <20190207160617.1142-1-marcandre.lureau@redhat.com> References: <20190207160617.1142-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.32]); Thu, 07 Feb 2019 16:06:51 +0000 (UTC) Content-Transfer-Encoding: quoted-printable 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 10/18] chardev: split up qmp_chardev_open_socket connection code 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: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Paolo Bonzini , peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Daniel P. Berrang=C3=A9 In qmp_chardev_open_socket the code for connecting client chardevs is split across two conditionals far apart with some server chardev code in the middle. Split up the method so that code for client connection setup is separate from code for server connection setup. Reviewed-by: Marc-Andr=C3=A9 Lureau Signed-off-by: Daniel P. Berrang=C3=A9 Message-Id: <20190123172740.32452-11-berrange@redhat.com> --- chardev/char-socket.c | 96 +++++++++++++++++++++++++++---------------- 1 file changed, 60 insertions(+), 36 deletions(-) diff --git a/chardev/char-socket.c b/chardev/char-socket.c index 222adbbad3..90dafef7d4 100644 --- a/chardev/char-socket.c +++ b/chardev/char-socket.c @@ -1005,6 +1005,61 @@ static gboolean socket_reconnect_timeout(gpointer op= aque) } =20 =20 +static int qmp_chardev_open_socket_server(Chardev *chr, + bool is_telnet, + bool is_waitconnect, + Error **errp) +{ + SocketChardev *s =3D SOCKET_CHARDEV(chr); + char *name; + if (is_telnet) { + s->do_telnetopt =3D 1; + } + s->listener =3D qio_net_listener_new(); + + name =3D g_strdup_printf("chardev-tcp-listener-%s", chr->label); + qio_net_listener_set_name(s->listener, name); + g_free(name); + + if (qio_net_listener_open_sync(s->listener, s->addr, errp) < 0) { + object_unref(OBJECT(s->listener)); + s->listener =3D NULL; + return -1; + } + + qapi_free_SocketAddress(s->addr); + s->addr =3D socket_local_address(s->listener->sioc[0]->fd, errp); + update_disconnected_filename(s); + + if (is_waitconnect) { + tcp_chr_accept_server_sync(chr); + } else { + qio_net_listener_set_client_func_full(s->listener, + tcp_chr_accept, + chr, NULL, + chr->gcontext); + } + + return 0; +} + + +static int qmp_chardev_open_socket_client(Chardev *chr, + int64_t reconnect, + Error **errp) +{ + SocketChardev *s =3D SOCKET_CHARDEV(chr); + + if (reconnect > 0) { + s->reconnect_time =3D reconnect; + tcp_chr_connect_client_async(chr); + return 0; + } else { + return tcp_chr_connect_client_sync(chr, errp); + } +} + + static bool qmp_chardev_validate_socket(ChardevSocket *sock, SocketAddress *addr, Error **errp) @@ -1147,44 +1202,13 @@ static void qmp_chardev_open_socket(Chardev *chr, =20 update_disconnected_filename(s); =20 - if (is_listen) { - if (is_telnet || is_tn3270) { - s->do_telnetopt =3D 1; + if (s->is_listen) { + if (qmp_chardev_open_socket_server(chr, is_telnet || is_tn3270, + is_waitconnect, errp) < 0) { + return; } - } else if (reconnect > 0) { - s->reconnect_time =3D reconnect; - } - - if (s->reconnect_time) { - tcp_chr_connect_client_async(chr); } else { - if (s->is_listen) { - char *name; - s->listener =3D qio_net_listener_new(); - - name =3D g_strdup_printf("chardev-tcp-listener-%s", chr->label= ); - qio_net_listener_set_name(s->listener, name); - g_free(name); - - if (qio_net_listener_open_sync(s->listener, s->addr, errp) < 0= ) { - object_unref(OBJECT(s->listener)); - s->listener =3D NULL; - return; - } - - qapi_free_SocketAddress(s->addr); - s->addr =3D socket_local_address(s->listener->sioc[0]->fd, err= p); - update_disconnected_filename(s); - - if (is_waitconnect) { - tcp_chr_accept_server_sync(chr); - } else { - qio_net_listener_set_client_func_full(s->listener, - tcp_chr_accept, - chr, NULL, - chr->gcontext); - } - } else if (tcp_chr_connect_client_sync(chr, errp) < 0) { + if (qmp_chardev_open_socket_client(chr, reconnect, errp) < 0) { return; } } --=20 2.20.1.519.g8feddda32c From nobody Thu Apr 25 17:50:00 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.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; spf=pass (zoho.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 1549556271474683.9767964661554; Thu, 7 Feb 2019 08:17:51 -0800 (PST) Received: from localhost ([127.0.0.1]:42739 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmN2-0007tP-Ap for importer@patchew.org; Thu, 07 Feb 2019 11:17:48 -0500 Received: from eggs.gnu.org ([209.51.188.92]:59791) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmCZ-0007mI-AK for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:07:00 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1grmCX-0006SZ-Dv for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:59 -0500 Received: from mx1.redhat.com ([209.132.183.28]:35044) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1grmCV-0006Pr-E6 for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:06:55 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 707FD81DEA; Thu, 7 Feb 2019 16:06:53 +0000 (UTC) Received: from localhost (unknown [10.36.112.15]) by smtp.corp.redhat.com (Postfix) with ESMTP id D0E7A62460; Thu, 7 Feb 2019 16:06:52 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Thu, 7 Feb 2019 17:06:10 +0100 Message-Id: <20190207160617.1142-12-marcandre.lureau@redhat.com> In-Reply-To: <20190207160617.1142-1-marcandre.lureau@redhat.com> References: <20190207160617.1142-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Thu, 07 Feb 2019 16:06:53 +0000 (UTC) Content-Transfer-Encoding: quoted-printable 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 11/18] chardev: use a state machine for socket connection state 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: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Paolo Bonzini , peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Daniel P. Berrang=C3=A9 The socket connection state is indicated via the 'bool connected' field in the SocketChardev struct. This variable is somewhat misleading though, as it is only set to true once the connection has completed all required handshakes (eg for TLS, telnet or websockets). IOW there is a period of time in which the socket is connected, but the "connected" flag is still false. The socket chardev really has three states that it can be in, disconnected, connecting and connected and those should be tracked explicitly. Reviewed-by: Marc-Andr=C3=A9 Lureau Signed-off-by: Daniel P. Berrang=C3=A9 Message-Id: <20190123172740.32452-12-berrange@redhat.com> --- chardev/char-socket.c | 63 +++++++++++++++++++++++++++++++++---------- 1 file changed, 49 insertions(+), 14 deletions(-) diff --git a/chardev/char-socket.c b/chardev/char-socket.c index 90dafef7d4..d6de5d2305 100644 --- a/chardev/char-socket.c +++ b/chardev/char-socket.c @@ -46,6 +46,12 @@ typedef struct { size_t buflen; } TCPChardevTelnetInit; =20 +typedef enum { + TCP_CHARDEV_STATE_DISCONNECTED, + TCP_CHARDEV_STATE_CONNECTING, + TCP_CHARDEV_STATE_CONNECTED, +} TCPChardevState; + typedef struct { Chardev parent; QIOChannel *ioc; /* Client I/O channel */ @@ -53,7 +59,7 @@ typedef struct { QIONetListener *listener; GSource *hup_source; QCryptoTLSCreds *tls_creds; - int connected; + TCPChardevState state; int max_size; int do_telnetopt; int do_nodelay; @@ -82,6 +88,21 @@ typedef struct { static gboolean socket_reconnect_timeout(gpointer opaque); static void tcp_chr_telnet_init(Chardev *chr); =20 +static void tcp_chr_change_state(SocketChardev *s, TCPChardevState state) +{ + switch (state) { + case TCP_CHARDEV_STATE_DISCONNECTED: + break; + case TCP_CHARDEV_STATE_CONNECTING: + assert(s->state =3D=3D TCP_CHARDEV_STATE_DISCONNECTED); + break; + case TCP_CHARDEV_STATE_CONNECTED: + assert(s->state =3D=3D TCP_CHARDEV_STATE_CONNECTING); + break; + } + s->state =3D state; +} + static void tcp_chr_reconn_timer_cancel(SocketChardev *s) { if (s->reconnect_timer) { @@ -96,7 +117,7 @@ static void qemu_chr_socket_restart_timer(Chardev *chr) SocketChardev *s =3D SOCKET_CHARDEV(chr); char *name; =20 - assert(s->connected =3D=3D 0); + assert(s->state =3D=3D TCP_CHARDEV_STATE_DISCONNECTED); name =3D g_strdup_printf("chardev-socket-reconnect-%s", chr->label); s->reconnect_timer =3D qemu_chr_timeout_add_ms(chr, s->reconnect_time * 1000, @@ -131,7 +152,7 @@ static int tcp_chr_write(Chardev *chr, const uint8_t *b= uf, int len) { SocketChardev *s =3D SOCKET_CHARDEV(chr); =20 - if (s->connected) { + if (s->state =3D=3D TCP_CHARDEV_STATE_CONNECTED) { int ret =3D io_channel_send_full(s->ioc, buf, len, s->write_msgfds, s->write_msgfds_num); @@ -164,7 +185,7 @@ static int tcp_chr_read_poll(void *opaque) { Chardev *chr =3D CHARDEV(opaque); SocketChardev *s =3D SOCKET_CHARDEV(opaque); - if (!s->connected) { + if (s->state !=3D TCP_CHARDEV_STATE_CONNECTED) { return 0; } s->max_size =3D qemu_chr_be_can_write(chr); @@ -277,7 +298,7 @@ static int tcp_set_msgfds(Chardev *chr, int *fds, int n= um) s->write_msgfds =3D NULL; s->write_msgfds_num =3D 0; =20 - if (!s->connected || + if ((s->state !=3D TCP_CHARDEV_STATE_CONNECTED) || !qio_channel_has_feature(s->ioc, QIO_CHANNEL_FEATURE_FD_PASS)) { return -1; @@ -389,7 +410,7 @@ static void tcp_chr_free_connection(Chardev *chr) s->ioc =3D NULL; g_free(chr->filename); chr->filename =3D NULL; - s->connected =3D 0; + tcp_chr_change_state(s, TCP_CHARDEV_STATE_DISCONNECTED); } =20 static const char *qemu_chr_socket_protocol(SocketChardev *s) @@ -442,12 +463,12 @@ static void update_disconnected_filename(SocketCharde= v *s) =20 /* NB may be called even if tcp_chr_connect has not been * reached, due to TLS or telnet initialization failure, - * so can *not* assume s->connected =3D=3D true + * so can *not* assume s->state =3D=3D TCP_CHARDEV_STATE_CONNECTED */ static void tcp_chr_disconnect(Chardev *chr) { SocketChardev *s =3D SOCKET_CHARDEV(chr); - bool emit_close =3D s->connected; + bool emit_close =3D s->state =3D=3D TCP_CHARDEV_STATE_CONNECTED; =20 tcp_chr_free_connection(chr); =20 @@ -471,7 +492,8 @@ static gboolean tcp_chr_read(QIOChannel *chan, GIOCondi= tion cond, void *opaque) uint8_t buf[CHR_READ_BUF_LEN]; int len, size; =20 - if (!s->connected || s->max_size <=3D 0) { + if ((s->state !=3D TCP_CHARDEV_STATE_CONNECTED) || + s->max_size <=3D 0) { return TRUE; } len =3D sizeof(buf); @@ -508,7 +530,7 @@ static int tcp_chr_sync_read(Chardev *chr, const uint8_= t *buf, int len) SocketChardev *s =3D SOCKET_CHARDEV(chr); int size; =20 - if (!s->connected) { + if (s->state !=3D TCP_CHARDEV_STATE_CONNECTED) { return 0; } =20 @@ -564,7 +586,7 @@ static void update_ioc_handlers(SocketChardev *s) { Chardev *chr =3D CHARDEV(s); =20 - if (!s->connected) { + if (s->state !=3D TCP_CHARDEV_STATE_CONNECTED) { return; } =20 @@ -589,7 +611,7 @@ static void tcp_chr_connect(void *opaque) g_free(chr->filename); chr->filename =3D qemu_chr_compute_filename(s); =20 - s->connected =3D 1; + tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTED); update_ioc_handlers(s); qemu_chr_be_event(chr, CHR_EVENT_OPENED); } @@ -828,7 +850,7 @@ static int tcp_chr_new_client(Chardev *chr, QIOChannelS= ocket *sioc) { SocketChardev *s =3D SOCKET_CHARDEV(chr); =20 - if (s->ioc !=3D NULL) { + if (s->state !=3D TCP_CHARDEV_STATE_CONNECTING) { return -1; } =20 @@ -865,11 +887,17 @@ static int tcp_chr_add_client(Chardev *chr, int fd) { int ret; QIOChannelSocket *sioc; + SocketChardev *s =3D SOCKET_CHARDEV(chr); + + if (s->state !=3D TCP_CHARDEV_STATE_DISCONNECTED) { + return -1; + } =20 sioc =3D qio_channel_socket_new_fd(fd, NULL); if (!sioc) { return -1; } + tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); tcp_chr_set_client_ioc_name(chr, sioc); ret =3D tcp_chr_new_client(chr, sioc); object_unref(OBJECT(sioc)); @@ -881,7 +909,9 @@ static void tcp_chr_accept(QIONetListener *listener, void *opaque) { Chardev *chr =3D CHARDEV(opaque); + SocketChardev *s =3D SOCKET_CHARDEV(chr); =20 + tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); tcp_chr_set_client_ioc_name(chr, cioc); tcp_chr_new_client(chr, cioc); } @@ -891,8 +921,10 @@ static int tcp_chr_connect_client_sync(Chardev *chr, E= rror **errp) { SocketChardev *s =3D SOCKET_CHARDEV(chr); QIOChannelSocket *sioc =3D qio_channel_socket_new(); + tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); tcp_chr_set_client_ioc_name(chr, sioc); if (qio_channel_socket_connect_sync(sioc, s->addr, errp) < 0) { + tcp_chr_change_state(s, TCP_CHARDEV_STATE_DISCONNECTED); object_unref(OBJECT(sioc)); return -1; } @@ -908,6 +940,7 @@ static void tcp_chr_accept_server_sync(Chardev *chr) QIOChannelSocket *sioc; info_report("QEMU waiting for connection on: %s", chr->filename); + tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); sioc =3D qio_net_listener_wait_client(s->listener); tcp_chr_set_client_ioc_name(chr, sioc); tcp_chr_new_client(chr, sioc); @@ -963,6 +996,7 @@ static void qemu_chr_socket_connected(QIOTask *task, vo= id *opaque) Error *err =3D NULL; =20 if (qio_task_propagate_error(task, &err)) { + tcp_chr_change_state(s, TCP_CHARDEV_STATE_DISCONNECTED); check_report_connect_error(chr, err); error_free(err); goto cleanup; @@ -980,6 +1014,7 @@ static void tcp_chr_connect_client_async(Chardev *chr) SocketChardev *s =3D SOCKET_CHARDEV(chr); QIOChannelSocket *sioc; =20 + tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); sioc =3D qio_channel_socket_new(); tcp_chr_set_client_ioc_name(chr, sioc); qio_channel_socket_connect_async(sioc, s->addr, @@ -1307,7 +1342,7 @@ char_socket_get_connected(Object *obj, Error **errp) { SocketChardev *s =3D SOCKET_CHARDEV(obj); =20 - return s->connected; + return s->state =3D=3D TCP_CHARDEV_STATE_CONNECTED; } =20 static void char_socket_class_init(ObjectClass *oc, void *data) --=20 2.20.1.519.g8feddda32c From nobody Thu Apr 25 17:50:00 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.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; 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Thu, 07 Feb 2019 11:07:03 -0500 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 1D6DF811DD; Thu, 7 Feb 2019 16:07:01 +0000 (UTC) Received: from localhost (unknown [10.36.112.15]) by smtp.corp.redhat.com (Postfix) with ESMTP id E8C9260C54; Thu, 7 Feb 2019 16:06:54 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Thu, 7 Feb 2019 17:06:11 +0100 Message-Id: <20190207160617.1142-13-marcandre.lureau@redhat.com> In-Reply-To: <20190207160617.1142-1-marcandre.lureau@redhat.com> References: <20190207160617.1142-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.27]); Thu, 07 Feb 2019 16:07:01 +0000 (UTC) Content-Transfer-Encoding: quoted-printable 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 12/18] chardev: honour the reconnect setting in tcp_chr_wait_connected 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: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Paolo Bonzini , peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Daniel P. Berrang=C3=A9 If establishing a client connection fails, the tcp_chr_wait_connected method should sleep for the reconnect timeout and then retry the attempt. This ensures the callers don't immediately abort with an error when the initial connection fails. Reviewed-by: Marc-Andr=C3=A9 Lureau Signed-off-by: Daniel P. Berrang=C3=A9 Message-Id: <20190123172740.32452-13-berrange@redhat.com> --- chardev/char-socket.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/chardev/char-socket.c b/chardev/char-socket.c index d6de5d2305..7db20ff0a0 100644 --- a/chardev/char-socket.c +++ b/chardev/char-socket.c @@ -957,8 +957,15 @@ static int tcp_chr_wait_connected(Chardev *chr, Error = **errp) if (s->is_listen) { tcp_chr_accept_server_sync(chr); } else { - if (tcp_chr_connect_client_sync(chr, errp) < 0) { - return -1; + Error *err =3D NULL; + if (tcp_chr_connect_client_sync(chr, &err) < 0) { + if (s->reconnect_time) { + error_free(err); + g_usleep(s->reconnect_time * 1000ULL * 1000ULL); + } else { + error_propagate(errp, err); + return -1; + } } } } --=20 2.20.1.519.g8feddda32c From nobody Thu Apr 25 17:50:00 2024 Delivered-To: importer@patchew.org Received-SPF: temperror (zoho.com: Error in retrieving data from DNS) 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; spf=temperror (zoho.com: Error in retrieving data from DNS) 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 (209.51.188.17 [209.51.188.17]) by mx.zohomail.com with SMTPS id 1549556085980648.9885379984938; Thu, 7 Feb 2019 08:14:45 -0800 (PST) Received: from localhost ([127.0.0.1]:42681 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmJu-0005Kn-Hm for importer@patchew.org; Thu, 07 Feb 2019 11:14:34 -0500 Received: from eggs.gnu.org ([209.51.188.92]:59833) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmCk-0007vF-K2 for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:07:11 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1grmCi-0006b3-KS for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:07:10 -0500 Received: from mx1.redhat.com ([209.132.183.28]:54336) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1grmCh-0006Y6-Ic for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:07:08 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 8204B89AC6; Thu, 7 Feb 2019 16:07:03 +0000 (UTC) Received: from localhost (unknown [10.36.112.15]) by smtp.corp.redhat.com (Postfix) with ESMTP id E5DC962937; Thu, 7 Feb 2019 16:07:02 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Thu, 7 Feb 2019 17:06:12 +0100 Message-Id: <20190207160617.1142-14-marcandre.lureau@redhat.com> In-Reply-To: <20190207160617.1142-1-marcandre.lureau@redhat.com> References: <20190207160617.1142-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Thu, 07 Feb 2019 16:07:03 +0000 (UTC) Content-Transfer-Encoding: quoted-printable 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 13/18] chardev: disallow TLS/telnet/websocket with tcp_chr_wait_connected 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: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Paolo Bonzini , peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Daniel P. Berrang=C3=A9 In the previous commit commit 1dc8a6695c731abb7461c637b2512c3670d82be4 Author: Marc-Andr=C3=A9 Lureau Date: Tue Aug 16 12:33:32 2016 +0400 char: fix waiting for TLS and telnet connection the tcp_chr_wait_connected() method was changed to check for a non-NULL 's->ioc' as a sign that there is already a connection present, as opposed to checking the "connected" flag to supposedly fix handling of TLS/telnet connections. The original code would repeatedly call tcp_chr_wait_connected creating many connections as 'connected' would never become true. The changed code would still repeatedly call tcp_chr_wait_connected busy waiting because s->ioc is set but the chardev will never see CHR_EVENT_OPENED. IOW, the code is still broken with TLS/telnet, but in a different way. Checking for a non-NULL 's->ioc' does not mean that a CHR_EVENT_OPENED will be ready for a TLS/telnet connection. These protocols (and the websocket protocol) all require the main loop to be running in order to complete the protocol handshake before emitting CHR_EVENT_OPENED. The tcp_chr_wait_connected() method is only used during early startup before a main loop is running, so TLS/telnet/websock connections can never complete initialization. Making this work would require changing tcp_chr_wait_connected to run a main loop. This is quite complex since we must not allow GSource's that other parts of QEMU have registered to run yet. The current callers of tcp_chr_wait_connected do not require use of the TLS/telnet/websocket protocols, so the simplest option is to just forbid this combination completely for now. Reviewed-by: Marc-Andr=C3=A9 Lureau Signed-off-by: Daniel P. Berrang=C3=A9 Message-Id: <20190123172740.32452-14-berrange@redhat.com> --- chardev/char-socket.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/chardev/char-socket.c b/chardev/char-socket.c index 7db20ff0a0..86c1f502d6 100644 --- a/chardev/char-socket.c +++ b/chardev/char-socket.c @@ -951,8 +951,20 @@ static void tcp_chr_accept_server_sync(Chardev *chr) static int tcp_chr_wait_connected(Chardev *chr, Error **errp) { SocketChardev *s =3D SOCKET_CHARDEV(chr); - /* It can't wait on s->connected, since it is set asynchronously - * in TLS and telnet cases, only wait for an accepted socket */ + const char *opts[] =3D { "telnet", "tn3270", "websock", "tls-creds" }; + bool optset[] =3D { s->is_telnet, s->is_tn3270, s->is_websock, s->tls_= creds }; + size_t i; + + QEMU_BUILD_BUG_ON(G_N_ELEMENTS(opts) !=3D G_N_ELEMENTS(optset)); + for (i =3D 0; i < G_N_ELEMENTS(opts); i++) { + if (optset[i]) { + error_setg(errp, + "'%s' option is incompatible with waiting for " + "connection completion", opts[i]); + return -1; + } + } + while (!s->ioc) { if (s->is_listen) { tcp_chr_accept_server_sync(chr); --=20 2.20.1.519.g8feddda32c From nobody Thu Apr 25 17:50:00 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.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; spf=pass (zoho.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 (209.51.188.17 [209.51.188.17]) by mx.zohomail.com with SMTPS id 1549556651490537.3392461153095; Thu, 7 Feb 2019 08:24:11 -0800 (PST) Received: from localhost ([127.0.0.1]:42834 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmT7-0004DY-2y for importer@patchew.org; Thu, 07 Feb 2019 11:24:05 -0500 Received: from eggs.gnu.org ([209.51.188.92]:59946) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmDN-0008Og-Pl for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:07:51 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1grmDK-0007Is-Ci for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:07:48 -0500 Received: from mx1.redhat.com ([209.132.183.28]:34394) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1grmDE-0006vg-D5 for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:07:43 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 78A44C01DDFE; Thu, 7 Feb 2019 16:07:28 +0000 (UTC) Received: from localhost (unknown [10.36.112.15]) by smtp.corp.redhat.com (Postfix) with ESMTP id F0E3D52FC0; Thu, 7 Feb 2019 16:07:04 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Thu, 7 Feb 2019 17:06:13 +0100 Message-Id: <20190207160617.1142-15-marcandre.lureau@redhat.com> In-Reply-To: <20190207160617.1142-1-marcandre.lureau@redhat.com> References: <20190207160617.1142-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Thu, 07 Feb 2019 16:07:28 +0000 (UTC) Content-Transfer-Encoding: quoted-printable 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 14/18] chardev: fix race with client connections in tcp_chr_wait_connected 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: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Paolo Bonzini , peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Daniel P. Berrang=C3=A9 When the 'reconnect' option is given for a client connection, the qmp_chardev_open_socket_client method will run an asynchronous connection attempt. The QIOChannel socket executes this is a single use background thread, so the connection will succeed immediately (assuming the server is listening). The chardev, however, won't get the result from this background thread until the main loop starts running and processes idle callbacks. Thus when tcp_chr_wait_connected is run s->ioc will be NULL, but the state will be TCP_CHARDEV_STATE_CONNECTING, and there may already be an established connection that will be associated with the chardev by the pending idle callback. tcp_chr_wait_connected doesn't check the state, only s->ioc, so attempts to establish another connection synchronously. If the server allows multiple connections this is unhelpful but not a fatal problem as the duplicate connection will get ignored by the tcp_chr_new_client method when it sees the state is already connected. If the server only supports a single connection, however, the tcp_chr_wait_connected method will hang forever because the server will not accept its synchronous connection attempt until the first connection is closed. To deal with this tcp_chr_wait_connected needs to synchronize with the completion of the background connection task. To do this it needs to create the QIOTask directly and use the qio_task_wait_thread method. This will cancel the pending idle callback and directly dispatch the task completion callback, allowing the connection to be associated with the chardev. If the background connection failed, it can still attempt a new synchronous connection. Signed-off-by: Daniel P. Berrang=C3=A9 Message-Id: <20190123172740.32452-15-berrange@redhat.com> Reviewed-by: Marc-Andr=C3=A9 Lureau --- chardev/char-socket.c | 87 +++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 83 insertions(+), 4 deletions(-) diff --git a/chardev/char-socket.c b/chardev/char-socket.c index 86c1f502d6..7c3ee25945 100644 --- a/chardev/char-socket.c +++ b/chardev/char-socket.c @@ -80,6 +80,8 @@ typedef struct { GSource *reconnect_timer; int64_t reconnect_time; bool connect_err_reported; + + QIOTask *connect_task; } SocketChardev; =20 #define SOCKET_CHARDEV(obj) \ @@ -965,7 +967,54 @@ static int tcp_chr_wait_connected(Chardev *chr, Error = **errp) } } =20 - while (!s->ioc) { + /* + * We expect states to be as follows: + * + * - server + * - wait -> CONNECTED + * - nowait -> DISCONNECTED + * - client + * - reconnect =3D=3D 0 -> CONNECTED + * - reconnect !=3D 0 -> CONNECTING + * + */ + if (s->state =3D=3D TCP_CHARDEV_STATE_CONNECTING) { + if (!s->connect_task) { + error_setg(errp, + "Unexpected 'connecting' state without connect task= " + "while waiting for connection completion"); + return -1; + } + /* + * tcp_chr_wait_connected should only ever be run from the + * main loop thread associated with chr->gcontext, otherwise + * qio_task_wait_thread has a dangerous race condition with + * free'ing of the s->connect_task object. + * + * Acquiring the main context doesn't 100% prove we're in + * the main loop thread, but it does at least guarantee + * that the main loop won't be executed by another thread + * avoiding the race condition with the task idle callback. + */ + g_main_context_acquire(chr->gcontext); + qio_task_wait_thread(s->connect_task); + g_main_context_release(chr->gcontext); + + /* + * The completion callback (qemu_chr_socket_connected) for + * s->connect_task should have set this to NULL by the time + * qio_task_wait_thread has returned. + */ + assert(!s->connect_task); + + /* + * NB we are *not* guaranteed to have "s->state =3D=3D ..CONNECTED" + * at this point as this first connect may be failed, so + * allow the next loop to run regardless. + */ + } + + while (s->state !=3D TCP_CHARDEV_STATE_CONNECTED) { if (s->is_listen) { tcp_chr_accept_server_sync(chr); } else { @@ -1014,6 +1063,8 @@ static void qemu_chr_socket_connected(QIOTask *task, = void *opaque) SocketChardev *s =3D SOCKET_CHARDEV(chr); Error *err =3D NULL; =20 + s->connect_task =3D NULL; + if (qio_task_propagate_error(task, &err)) { tcp_chr_change_state(s, TCP_CHARDEV_STATE_DISCONNECTED); check_report_connect_error(chr, err); @@ -1028,6 +1079,20 @@ cleanup: object_unref(OBJECT(sioc)); } =20 + +static void tcp_chr_connect_client_task(QIOTask *task, + gpointer opaque) +{ + QIOChannelSocket *ioc =3D QIO_CHANNEL_SOCKET(qio_task_get_source(task)= ); + SocketAddress *addr =3D opaque; + Error *err =3D NULL; + + qio_channel_socket_connect_sync(ioc, addr, &err); + + qio_task_set_error(task, err); +} + + static void tcp_chr_connect_client_async(Chardev *chr) { SocketChardev *s =3D SOCKET_CHARDEV(chr); @@ -1036,9 +1101,23 @@ static void tcp_chr_connect_client_async(Chardev *ch= r) tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); sioc =3D qio_channel_socket_new(); tcp_chr_set_client_ioc_name(chr, sioc); - qio_channel_socket_connect_async(sioc, s->addr, - qemu_chr_socket_connected, - chr, NULL, chr->gcontext); + /* + * Normally code would use the qio_channel_socket_connect_async + * method which uses a QIOTask + qio_task_set_error internally + * to avoid blocking. The tcp_chr_wait_connected method, however, + * needs a way to synchronize with completion of the background + * connect task which can't be done with the QIOChannelSocket + * async APIs. Thus we must use QIOTask directly to implement + * the non-blocking concept locally. + */ + s->connect_task =3D qio_task_new(OBJECT(sioc), + qemu_chr_socket_connected, + chr, NULL); + qio_task_run_in_thread(s->connect_task, + tcp_chr_connect_client_task, + s->addr, + NULL, + chr->gcontext); } =20 static gboolean socket_reconnect_timeout(gpointer opaque) --=20 2.20.1.519.g8feddda32c From nobody Thu Apr 25 17:50:00 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.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; spf=pass (zoho.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 1549556147547187.97791089412806; Thu, 7 Feb 2019 08:15:47 -0800 (PST) Received: from localhost ([127.0.0.1]:42705 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmL2-0006PE-AS for importer@patchew.org; Thu, 07 Feb 2019 11:15:44 -0500 Received: from eggs.gnu.org ([209.51.188.92]:60052) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmDR-0008Ua-H9 for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:07:55 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1grmDO-0007MV-BW for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:07:53 -0500 Received: from mx1.redhat.com ([209.132.183.28]:54860) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1grmDO-00079H-1h for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:07:50 -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 mx1.redhat.com (Postfix) with ESMTPS id 83DDB89AC6; Thu, 7 Feb 2019 16:07:34 +0000 (UTC) Received: from localhost (unknown [10.36.112.15]) by smtp.corp.redhat.com (Postfix) with ESMTP id EECB2620DE; Thu, 7 Feb 2019 16:07:29 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Thu, 7 Feb 2019 17:06:14 +0100 Message-Id: <20190207160617.1142-16-marcandre.lureau@redhat.com> In-Reply-To: <20190207160617.1142-1-marcandre.lureau@redhat.com> References: <20190207160617.1142-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Thu, 07 Feb 2019 16:07:34 +0000 (UTC) Content-Transfer-Encoding: quoted-printable 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 15/18] tests: expand coverage of socket chardev test 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: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Daniel P. Berrang=C3=A9 The current socket chardev tests try to exercise the chardev socket driver in both server and client mode at the same time. The chardev API is not very well designed to handle both ends of the connection being in the same process so this approach makes the test case quite unpleasant to deal with. This splits the tests into distinct cases, one to test server socket chardevs and one to test client socket chardevs. In each case the peer is run in a background thread using the simpler QIOChannelSocket APIs. The main test case code can now be written in a way that mirrors the typical usage from within QEMU. In doing this refactoring it is possible to greatly expand the test coverage for the socket chardevs to test all combinations except for a server operating in blocking wait mode. Signed-off-by: Daniel P. Berrang=C3=A9 Message-Id: <20190123172740.32452-16-berrange@redhat.com> Reviewed-by: Marc-Andr=C3=A9 Lureau --- tests/test-char.c | 640 ++++++++++++++++++++++++++++++++++------------ 1 file changed, 475 insertions(+), 165 deletions(-) diff --git a/tests/test-char.c b/tests/test-char.c index 89c43e4ada..8b478bb67d 100644 --- a/tests/test-char.c +++ b/tests/test-char.c @@ -11,6 +11,9 @@ #include "qapi/qapi-commands-char.h" #include "qapi/qmp/qdict.h" #include "qom/qom-qobject.h" +#include "io/channel-socket.h" +#include "qapi/qobject-input-visitor.h" +#include "qapi/qapi-visit-sockets.h" =20 static bool quit; =20 @@ -257,168 +260,6 @@ static void char_mux_test(void) qemu_chr_fe_deinit(&chr_be2, true); } =20 -typedef struct SocketIdleData { - GMainLoop *loop; - Chardev *chr; - bool conn_expected; - CharBackend *be; - CharBackend *client_be; -} SocketIdleData; - -static gboolean char_socket_test_idle(gpointer user_data) -{ - SocketIdleData *data =3D user_data; - - if (object_property_get_bool(OBJECT(data->chr), "connected", NULL) - =3D=3D data->conn_expected) { - quit =3D true; - return FALSE; - } - - return TRUE; -} - -static void socket_read(void *opaque, const uint8_t *buf, int size) -{ - SocketIdleData *data =3D opaque; - - g_assert_cmpint(size, =3D=3D, 1); - g_assert_cmpint(*buf, =3D=3D, 'Z'); - - size =3D qemu_chr_fe_write(data->be, (const uint8_t *)"hello", 5); - g_assert_cmpint(size, =3D=3D, 5); -} - -static int socket_can_read(void *opaque) -{ - return 10; -} - -static void socket_read_hello(void *opaque, const uint8_t *buf, int size) -{ - g_assert_cmpint(size, =3D=3D, 5); - g_assert(strncmp((char *)buf, "hello", 5) =3D=3D 0); - - quit =3D true; -} - -static int socket_can_read_hello(void *opaque) -{ - return 10; -} - -static void char_socket_test_common(Chardev *chr, bool reconnect) -{ - Chardev *chr_client; - QObject *addr; - QDict *qdict; - const char *port; - SocketIdleData d =3D { .chr =3D chr }; - CharBackend be; - CharBackend client_be; - char *tmp; - - d.be =3D &be; - d.client_be =3D &be; - - g_assert_nonnull(chr); - g_assert(!object_property_get_bool(OBJECT(chr), "connected", &error_ab= ort)); - - addr =3D object_property_get_qobject(OBJECT(chr), "addr", &error_abort= ); - qdict =3D qobject_to(QDict, addr); - port =3D qdict_get_str(qdict, "port"); - tmp =3D g_strdup_printf("tcp:127.0.0.1:%s%s", port, - reconnect ? ",reconnect=3D1" : ""); - qobject_unref(qdict); - - qemu_chr_fe_init(&be, chr, &error_abort); - qemu_chr_fe_set_handlers(&be, socket_can_read, socket_read, - NULL, NULL, &d, NULL, true); - - chr_client =3D qemu_chr_new("client", tmp); - qemu_chr_fe_init(&client_be, chr_client, &error_abort); - qemu_chr_fe_set_handlers(&client_be, socket_can_read_hello, - socket_read_hello, - NULL, NULL, &d, NULL, true); - g_free(tmp); - - d.conn_expected =3D true; - guint id =3D g_idle_add(char_socket_test_idle, &d); - g_source_set_name_by_id(id, "test-idle"); - g_assert_cmpint(id, >, 0); - main_loop(); - - d.chr =3D chr_client; - id =3D g_idle_add(char_socket_test_idle, &d); - g_source_set_name_by_id(id, "test-idle"); - g_assert_cmpint(id, >, 0); - main_loop(); - - g_assert(object_property_get_bool(OBJECT(chr), "connected", &error_abo= rt)); - g_assert(object_property_get_bool(OBJECT(chr_client), - "connected", &error_abort)); - - qemu_chr_write_all(chr_client, (const uint8_t *)"Z", 1); - main_loop(); - - object_unparent(OBJECT(chr_client)); - - d.chr =3D chr; - d.conn_expected =3D false; - g_idle_add(char_socket_test_idle, &d); - main_loop(); - - object_unparent(OBJECT(chr)); -} - - -static void char_socket_basic_test(void) -{ - Chardev *chr =3D qemu_chr_new("server", "tcp:127.0.0.1:0,server,nowait= "); - - char_socket_test_common(chr, false); -} - - -static void char_socket_reconnect_test(void) -{ - Chardev *chr =3D qemu_chr_new("server", "tcp:127.0.0.1:0,server,nowait= "); - - char_socket_test_common(chr, true); -} - - -static void char_socket_fdpass_test(void) -{ - Chardev *chr; - char *optstr; - QemuOpts *opts; - int fd; - SocketAddress *addr =3D g_new0(SocketAddress, 1); - - addr->type =3D SOCKET_ADDRESS_TYPE_INET; - addr->u.inet.host =3D g_strdup("127.0.0.1"); - addr->u.inet.port =3D g_strdup("0"); - - fd =3D socket_listen(addr, &error_abort); - g_assert(fd >=3D 0); - - qapi_free_SocketAddress(addr); - - optstr =3D g_strdup_printf("socket,id=3Dcdev,fd=3D%d,server,nowait", f= d); - - opts =3D qemu_opts_parse_noisily(qemu_find_opts("chardev"), - optstr, true); - g_free(optstr); - g_assert_nonnull(opts); - - chr =3D qemu_chr_new_from_opts(opts, &error_abort); - - qemu_opts_del(opts); - - char_socket_test_common(chr, false); -} - =20 static void websock_server_read(void *opaque, const uint8_t *buf, int size) { @@ -610,6 +451,28 @@ static void char_pipe_test(void) } #endif =20 +typedef struct SocketIdleData { + GMainLoop *loop; + Chardev *chr; + bool conn_expected; + CharBackend *be; + CharBackend *client_be; +} SocketIdleData; + + +static void socket_read_hello(void *opaque, const uint8_t *buf, int size) +{ + g_assert_cmpint(size, =3D=3D, 5); + g_assert(strncmp((char *)buf, "hello", 5) =3D=3D 0); + + quit =3D true; +} + +static int socket_can_read_hello(void *opaque) +{ + return 10; +} + static int make_udp_socket(int *port) { struct sockaddr_in addr =3D { 0, }; @@ -680,6 +543,391 @@ static void char_udp_test(void) char_udp_test_internal(NULL, 0); } =20 + +typedef struct { + int event; + bool got_pong; +} CharSocketTestData; + + +#define SOCKET_PING "Hello" +#define SOCKET_PONG "World" + + +static void +char_socket_event(void *opaque, int event) +{ + CharSocketTestData *data =3D opaque; + data->event =3D event; +} + + +static void +char_socket_read(void *opaque, const uint8_t *buf, int size) +{ + CharSocketTestData *data =3D opaque; + g_assert_cmpint(size, =3D=3D, sizeof(SOCKET_PONG)); + g_assert(memcmp(buf, SOCKET_PONG, size) =3D=3D 0); + data->got_pong =3D true; +} + + +static int +char_socket_can_read(void *opaque) +{ + return sizeof(SOCKET_PONG); +} + + +static char * +char_socket_addr_to_opt_str(SocketAddress *addr, bool fd_pass, + const char *reconnect, bool is_listen) +{ + if (fd_pass) { + QIOChannelSocket *ioc =3D qio_channel_socket_new(); + int fd; + char *optstr; + g_assert(!reconnect); + if (is_listen) { + qio_channel_socket_listen_sync(ioc, addr, &error_abort); + } else { + qio_channel_socket_connect_sync(ioc, addr, &error_abort); + } + fd =3D ioc->fd; + ioc->fd =3D -1; + optstr =3D g_strdup_printf("socket,id=3Dcdev0,fd=3D%d%s", + fd, is_listen ? ",server,nowait" : ""); + object_unref(OBJECT(ioc)); + return optstr; + } else { + switch (addr->type) { + case SOCKET_ADDRESS_TYPE_INET: + return g_strdup_printf("socket,id=3Dcdev0,host=3D%s,port=3D%s%= s%s", + addr->u.inet.host, + addr->u.inet.port, + reconnect ? reconnect : "", + is_listen ? ",server,nowait" : ""); + + case SOCKET_ADDRESS_TYPE_UNIX: + return g_strdup_printf("socket,id=3Dcdev0,path=3D%s%s%s", + addr->u.q_unix.path, + reconnect ? reconnect : "", + is_listen ? ",server,nowait" : ""); + + default: + g_assert_not_reached(); + } + } +} + + +static void +char_socket_ping_pong(QIOChannel *ioc) +{ + char greeting[sizeof(SOCKET_PING)]; + const char *response =3D SOCKET_PONG; + + qio_channel_read_all(ioc, greeting, sizeof(greeting), &error_abort); + + g_assert(memcmp(greeting, SOCKET_PING, sizeof(greeting)) =3D=3D 0); + + qio_channel_write_all(ioc, response, sizeof(SOCKET_PONG), &error_abort= ); + + object_unref(OBJECT(ioc)); +} + + +static gpointer +char_socket_server_client_thread(gpointer data) +{ + SocketAddress *addr =3D data; + QIOChannelSocket *ioc =3D qio_channel_socket_new(); + + qio_channel_socket_connect_sync(ioc, addr, &error_abort); + + char_socket_ping_pong(QIO_CHANNEL(ioc)); + + return NULL; +} + + +typedef struct { + SocketAddress *addr; + bool wait_connected; + bool fd_pass; +} CharSocketServerTestConfig; + + +static void char_socket_server_test(gconstpointer opaque) +{ + const CharSocketServerTestConfig *config =3D opaque; + Chardev *chr; + CharBackend be =3D {0}; + CharSocketTestData data =3D {0}; + QObject *qaddr; + SocketAddress *addr; + Visitor *v; + QemuThread thread; + int ret; + bool reconnected; + char *optstr; + QemuOpts *opts; + + g_setenv("QTEST_SILENT_ERRORS", "1", 1); + /* + * We rely on config->addr containing "nowait", otherwise + * qemu_chr_new() will block until a client connects. We + * can't spawn our client thread though, because until + * qemu_chr_new() returns we don't know what TCP port was + * allocated by the OS + */ + optstr =3D char_socket_addr_to_opt_str(config->addr, + config->fd_pass, + NULL, + true); + opts =3D qemu_opts_parse_noisily(qemu_find_opts("chardev"), + optstr, true); + g_assert_nonnull(opts); + chr =3D qemu_chr_new_from_opts(opts, &error_abort); + qemu_opts_del(opts); + g_assert_nonnull(chr); + g_assert(!object_property_get_bool(OBJECT(chr), "connected", &error_ab= ort)); + + qaddr =3D object_property_get_qobject(OBJECT(chr), "addr", &error_abor= t); + g_assert_nonnull(qaddr); + + v =3D qobject_input_visitor_new(qaddr); + visit_type_SocketAddress(v, "addr", &addr, &error_abort); + visit_free(v); + qobject_unref(qaddr); + + qemu_chr_fe_init(&be, chr, &error_abort); + + reconnect: + data.event =3D -1; + qemu_chr_fe_set_handlers(&be, NULL, NULL, + char_socket_event, NULL, + &data, NULL, true); + g_assert(data.event =3D=3D -1); + + /* + * Kick off a thread to act as the "remote" client + * which just plays ping-pong with us + */ + qemu_thread_create(&thread, "client", + char_socket_server_client_thread, + addr, QEMU_THREAD_JOINABLE); + g_assert(data.event =3D=3D -1); + + if (config->wait_connected) { + /* Synchronously accept a connection */ + qemu_chr_wait_connected(chr, &error_abort); + } else { + /* + * Asynchronously accept a connection when the evnt + * loop reports the listener socket as readable + */ + while (data.event =3D=3D -1) { + main_loop_wait(false); + } + } + g_assert(object_property_get_bool(OBJECT(chr), "connected", &error_abo= rt)); + g_assert(data.event =3D=3D CHR_EVENT_OPENED); + data.event =3D -1; + + /* Send a greeting to the client */ + ret =3D qemu_chr_fe_write_all(&be, (const uint8_t *)SOCKET_PING, + sizeof(SOCKET_PING)); + g_assert_cmpint(ret, =3D=3D, sizeof(SOCKET_PING)); + g_assert(data.event =3D=3D -1); + + /* Setup a callback to receive the reply to our greeting */ + qemu_chr_fe_set_handlers(&be, char_socket_can_read, + char_socket_read, + char_socket_event, NULL, + &data, NULL, true); + g_assert(data.event =3D=3D CHR_EVENT_OPENED); + data.event =3D -1; + + /* Wait for the client to go away */ + while (data.event =3D=3D -1) { + main_loop_wait(false); + } + g_assert(!object_property_get_bool(OBJECT(chr), "connected", &error_ab= ort)); + g_assert(data.event =3D=3D CHR_EVENT_CLOSED); + g_assert(data.got_pong); + + qemu_thread_join(&thread); + + if (!reconnected) { + reconnected =3D true; + goto reconnect; + } + + qapi_free_SocketAddress(addr); + object_unparent(OBJECT(chr)); + g_free(optstr); + g_unsetenv("QTEST_SILENT_ERRORS"); +} + + +static gpointer +char_socket_client_server_thread(gpointer data) +{ + QIOChannelSocket *ioc =3D data; + QIOChannelSocket *cioc; + + cioc =3D qio_channel_socket_accept(ioc, &error_abort); + g_assert_nonnull(cioc); + + char_socket_ping_pong(QIO_CHANNEL(cioc)); + + return NULL; +} + + +typedef struct { + SocketAddress *addr; + const char *reconnect; + bool wait_connected; + bool fd_pass; +} CharSocketClientTestConfig; + + +static void char_socket_client_test(gconstpointer opaque) +{ + const CharSocketClientTestConfig *config =3D opaque; + QIOChannelSocket *ioc; + char *optstr; + Chardev *chr; + CharBackend be =3D {0}; + CharSocketTestData data =3D {0}; + SocketAddress *addr; + QemuThread thread; + int ret; + bool reconnected =3D false; + QemuOpts *opts; + + /* + * Setup a listener socket and determine get its address + * so we know the TCP port for the client later + */ + ioc =3D qio_channel_socket_new(); + g_assert_nonnull(ioc); + qio_channel_socket_listen_sync(ioc, config->addr, &error_abort); + addr =3D qio_channel_socket_get_local_address(ioc, &error_abort); + g_assert_nonnull(addr); + + /* + * Kick off a thread to act as the "remote" client + * which just plays ping-pong with us + */ + qemu_thread_create(&thread, "client", + char_socket_client_server_thread, + ioc, QEMU_THREAD_JOINABLE); + + /* + * Populate the chardev address based on what the server + * is actually listening on + */ + optstr =3D char_socket_addr_to_opt_str(addr, + config->fd_pass, + config->reconnect, + false); + + opts =3D qemu_opts_parse_noisily(qemu_find_opts("chardev"), + optstr, true); + g_assert_nonnull(opts); + chr =3D qemu_chr_new_from_opts(opts, &error_abort); + qemu_opts_del(opts); + g_assert_nonnull(chr); + + if (config->reconnect) { + /* + * If reconnect is set, the connection will be + * established in a background thread and we won't + * see the "connected" status updated until we + * run the main event loop, or call qemu_chr_wait_connected + */ + g_assert(!object_property_get_bool(OBJECT(chr), "connected", + &error_abort)); + } else { + g_assert(object_property_get_bool(OBJECT(chr), "connected", + &error_abort)); + } + + qemu_chr_fe_init(&be, chr, &error_abort); + + reconnect: + data.event =3D -1; + qemu_chr_fe_set_handlers(&be, NULL, NULL, + char_socket_event, NULL, + &data, NULL, true); + if (config->reconnect) { + g_assert(data.event =3D=3D -1); + } else { + g_assert(data.event =3D=3D CHR_EVENT_OPENED); + } + + if (config->wait_connected) { + /* + * Synchronously wait for the connection to complete + * This should be a no-op if reconnect is not set. + */ + qemu_chr_wait_connected(chr, &error_abort); + } else { + /* + * Asynchronously wait for the connection to be reported + * as complete when the background thread reports its + * status. + * The loop will short-circuit if reconnect was set + */ + while (data.event =3D=3D -1) { + main_loop_wait(false); + } + } + g_assert(data.event =3D=3D CHR_EVENT_OPENED); + data.event =3D -1; + g_assert(object_property_get_bool(OBJECT(chr), "connected", &error_abo= rt)); + + /* Send a greeting to the server */ + ret =3D qemu_chr_fe_write_all(&be, (const uint8_t *)SOCKET_PING, + sizeof(SOCKET_PING)); + g_assert_cmpint(ret, =3D=3D, sizeof(SOCKET_PING)); + g_assert(data.event =3D=3D -1); + + /* Setup a callback to receive the reply to our greeting */ + qemu_chr_fe_set_handlers(&be, char_socket_can_read, + char_socket_read, + char_socket_event, NULL, + &data, NULL, true); + g_assert(data.event =3D=3D CHR_EVENT_OPENED); + data.event =3D -1; + + /* Wait for the server to go away */ + while (data.event =3D=3D -1) { + main_loop_wait(false); + } + g_assert(data.event =3D=3D CHR_EVENT_CLOSED); + g_assert(!object_property_get_bool(OBJECT(chr), "connected", &error_ab= ort)); + g_assert(data.got_pong); + qemu_thread_join(&thread); + + if (config->reconnect && !reconnected) { + reconnected =3D true; + qemu_thread_create(&thread, "client", + char_socket_client_server_thread, + ioc, QEMU_THREAD_JOINABLE); + goto reconnect; + } + + object_unref(OBJECT(ioc)); + object_unparent(OBJECT(chr)); + qapi_free_SocketAddress(addr); + g_free(optstr); +} + + #ifdef HAVE_CHARDEV_SERIAL static void char_serial_test(void) { @@ -959,9 +1207,71 @@ int main(int argc, char **argv) #ifndef _WIN32 g_test_add_func("/char/file-fifo", char_file_fifo_test); #endif - g_test_add_func("/char/socket/basic", char_socket_basic_test); - g_test_add_func("/char/socket/reconnect", char_socket_reconnect_test); - g_test_add_func("/char/socket/fdpass", char_socket_fdpass_test); + + SocketAddress tcpaddr =3D { + .type =3D SOCKET_ADDRESS_TYPE_INET, + .u.inet.host =3D (char *)"127.0.0.1", + .u.inet.port =3D (char *)"0", + }; +#ifndef WIN32 + SocketAddress unixaddr =3D { + .type =3D SOCKET_ADDRESS_TYPE_UNIX, + .u.q_unix.path =3D (char *)"test-char.sock", + }; +#endif + +#define SOCKET_SERVER_TEST(name, addr) \ + CharSocketServerTestConfig server1 ## name =3D \ + { addr, false, false }; \ + CharSocketServerTestConfig server2 ## name =3D \ + { addr, true, false }; \ + CharSocketServerTestConfig server3 ## name =3D \ + { addr, false, true }; \ + CharSocketServerTestConfig server4 ## name =3D \ + { addr, true, true }; \ + g_test_add_data_func("/char/socket/server/mainloop/" # name, \ + &server1 ##name, char_socket_server_test); \ + g_test_add_data_func("/char/socket/server/wait-conn/" # name, \ + &server2 ##name, char_socket_server_test); \ + g_test_add_data_func("/char/socket/server/mainloop-fdpass/" # name, \ + &server3 ##name, char_socket_server_test); \ + g_test_add_data_func("/char/socket/server/wait-conn-fdpass/" # name, \ + &server4 ##name, char_socket_server_test) + +#define SOCKET_CLIENT_TEST(name, addr) \ + CharSocketClientTestConfig client1 ## name =3D \ + { addr, NULL, false, false }; \ + CharSocketClientTestConfig client2 ## name =3D \ + { addr, NULL, true, false }; \ + CharSocketClientTestConfig client3 ## name =3D \ + { addr, ",reconnect=3D1", false }; \ + CharSocketClientTestConfig client4 ## name =3D \ + { addr, ",reconnect=3D1", true }; \ + CharSocketClientTestConfig client5 ## name =3D \ + { addr, NULL, false, true }; \ + CharSocketClientTestConfig client6 ## name =3D \ + { addr, NULL, true, true }; \ + g_test_add_data_func("/char/socket/client/mainloop/" # name, \ + &client1 ##name, char_socket_client_test); \ + g_test_add_data_func("/char/socket/client/wait-conn/" # name, \ + &client2 ##name, char_socket_client_test); \ + g_test_add_data_func("/char/socket/client/mainloop-reconnect/" # name,= \ + &client3 ##name, char_socket_client_test); \ + g_test_add_data_func("/char/socket/client/wait-conn-reconnect/" # name= , \ + &client4 ##name, char_socket_client_test); \ + g_test_add_data_func("/char/socket/client/mainloop-fdpass/" # name, \ + &client5 ##name, char_socket_client_test); \ + g_test_add_data_func("/char/socket/client/wait-conn-fdpass/" # name, \ + &client6 ##name, char_socket_client_test) + + SOCKET_SERVER_TEST(tcp, &tcpaddr); + SOCKET_CLIENT_TEST(tcp, &tcpaddr); +#ifndef WIN32 + SOCKET_SERVER_TEST(unix, &unixaddr); + SOCKET_CLIENT_TEST(unix, &unixaddr); +#endif + + g_test_add_func("/char/udp", char_udp_test); #ifdef HAVE_CHARDEV_SERIAL g_test_add_func("/char/serial", char_serial_test); --=20 2.20.1.519.g8feddda32c From nobody Thu Apr 25 17:50:00 2024 Delivered-To: importer@patchew.org Received-SPF: temperror (zoho.com: Error in retrieving data from DNS) 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; spf=temperror (zoho.com: Error in retrieving data from DNS) 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 (209.51.188.17 [209.51.188.17]) by mx.zohomail.com with SMTPS id 1549556799267247.93376256982071; Thu, 7 Feb 2019 08:26:39 -0800 (PST) Received: from localhost ([127.0.0.1]:42884 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmVP-0006KE-Ty for importer@patchew.org; Thu, 07 Feb 2019 11:26:27 -0500 Received: from eggs.gnu.org ([209.51.188.92]:59978) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmDP-0008Pp-1e for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:07:52 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1grmDO-0007M1-6X for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:07:51 -0500 Received: from mx1.redhat.com ([209.132.183.28]:38320) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1grmDO-0007AZ-0H for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:07:50 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 6F7F241A33; Thu, 7 Feb 2019 16:07:36 +0000 (UTC) Received: from localhost (unknown [10.36.112.15]) by smtp.corp.redhat.com (Postfix) with ESMTP id EA1A06155B; Thu, 7 Feb 2019 16:07:35 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Thu, 7 Feb 2019 17:06:15 +0100 Message-Id: <20190207160617.1142-17-marcandre.lureau@redhat.com> In-Reply-To: <20190207160617.1142-1-marcandre.lureau@redhat.com> References: <20190207160617.1142-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Thu, 07 Feb 2019 16:07:36 +0000 (UTC) Content-Transfer-Encoding: quoted-printable 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 16/18] chardev: ensure termios is fully initialized 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: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Paolo Bonzini , peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Daniel P. Berrang=C3=A9 valgrind on the test-char.c code reports that 'struct termios' contains uninitialized memory. Signed-off-by: Daniel P. Berrang=C3=A9 Message-Id: <20190123172740.32452-17-berrange@redhat.com> Reviewed-by: Marc-Andr=C3=A9 Lureau --- chardev/char-serial.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/chardev/char-serial.c b/chardev/char-serial.c index 3299b46853..a8bae31b8d 100644 --- a/chardev/char-serial.c +++ b/chardev/char-serial.c @@ -57,7 +57,7 @@ static void qmp_chardev_open_serial(Chardev *chr, static void tty_serial_init(int fd, int speed, int parity, int data_bits, int stop_bits) { - struct termios tty; + struct termios tty =3D {0}; speed_t spd; =20 #if 0 --=20 2.20.1.519.g8feddda32c From nobody Thu Apr 25 17:50:00 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.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; spf=pass (zoho.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 (209.51.188.17 [209.51.188.17]) by mx.zohomail.com with SMTPS id 1549556909801523.798462116194; Thu, 7 Feb 2019 08:28:29 -0800 (PST) Received: from localhost ([127.0.0.1]:42902 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmXH-0007YC-Pu for importer@patchew.org; Thu, 07 Feb 2019 11:28:23 -0500 Received: from eggs.gnu.org ([209.51.188.92]:60025) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grmDQ-0008Tj-PK for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:07:53 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1grmDO-0007MQ-BS for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:07:52 -0500 Received: from mx1.redhat.com ([209.132.183.28]:21690) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1grmDO-0007CH-1W for qemu-devel@nongnu.org; Thu, 07 Feb 2019 11:07:50 -0500 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 95C6B7F6B2; Thu, 7 Feb 2019 16:07:38 +0000 (UTC) Received: from localhost (unknown [10.36.112.15]) by smtp.corp.redhat.com (Postfix) with ESMTP id 04C767C835; Thu, 7 Feb 2019 16:07:37 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Thu, 7 Feb 2019 17:06:16 +0100 Message-Id: <20190207160617.1142-18-marcandre.lureau@redhat.com> In-Reply-To: <20190207160617.1142-1-marcandre.lureau@redhat.com> References: <20190207160617.1142-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Thu, 07 Feb 2019 16:07:38 +0000 (UTC) Content-Transfer-Encoding: quoted-printable 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 17/18] chardev: fix mess in OPENED/CLOSED events when muxed 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: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Paolo Bonzini , Artem Pisarenko , peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Artem Pisarenko When chardev is multiplexed (mux=3Don) there are a lot of cases where CHR_EVENT_OPENED/CHR_EVENT_CLOSED events pairing (expected from frontend side) is broken. There are either generation of multiple repeated or extra CHR_EVENT_OPENED events, or CHR_EVENT_CLOSED just isn't generated at all. This is mostly because 'qemu_chr_fe_set_handlers()' function makes its own (and often wrong) implicit decision on updated frontend state and invokes 'fd_event' callback with 'CHR_EVENT_OPENED'. And even worse, it doesn't do symmetric action in opposite direction, as someone may expect (i.e. it doesn't invoke previously set 'fd_event' with 'CHR_EVENT_CLOSED'). Muxed chardev uses trick by calling this function again to replace callback handlers with its own ones, but it doesn't account for such side effect. Fix that using extended version of this function with added argument for disabling side effect and keep original function for compatibility with lots of frontends already using this interface and being "tolerant" to its side effects. One more source of event duplication is just line of code in char-mux.c, which does far more than comment above says (obvious fix). Signed-off-by: Artem Pisarenko Reviewed-by: Marc-Andr=C3=A9 Lureau Message-Id: <7dde6abbd21682857f8294644013173c0b9949b3.1541507990.git.artem.= k.pisarenko@gmail.com> --- include/chardev/char-fe.h | 18 +++++++++++++++++- chardev/char-fe.c | 33 ++++++++++++++++++++++++--------- chardev/char-mux.c | 16 ++++++++-------- 3 files changed, 49 insertions(+), 18 deletions(-) diff --git a/include/chardev/char-fe.h b/include/chardev/char-fe.h index 46c997d352..c1b7fd9a95 100644 --- a/include/chardev/char-fe.h +++ b/include/chardev/char-fe.h @@ -67,7 +67,7 @@ bool qemu_chr_fe_backend_connected(CharBackend *be); bool qemu_chr_fe_backend_open(CharBackend *be); =20 /** - * qemu_chr_fe_set_handlers: + * qemu_chr_fe_set_handlers_full: * @b: a CharBackend * @fd_can_read: callback to get the amount of data the frontend may * receive @@ -79,12 +79,28 @@ bool qemu_chr_fe_backend_open(CharBackend *be); * @context: a main loop context or NULL for the default * @set_open: whether to call qemu_chr_fe_set_open() implicitely when * any of the handler is non-NULL + * @sync_state: whether to issue event callback with updated state * * Set the front end char handlers. The front end takes the focus if * any of the handler is non-NULL. * * Without associated Chardev, nothing is changed. */ +void qemu_chr_fe_set_handlers_full(CharBackend *b, + IOCanReadHandler *fd_can_read, + IOReadHandler *fd_read, + IOEventHandler *fd_event, + BackendChangeHandler *be_change, + void *opaque, + GMainContext *context, + bool set_open, + bool sync_state); + +/** + * qemu_chr_fe_set_handlers: + * + * Version of qemu_chr_fe_set_handlers_full() with sync_state =3D true. + */ void qemu_chr_fe_set_handlers(CharBackend *b, IOCanReadHandler *fd_can_read, IOReadHandler *fd_read, diff --git a/chardev/char-fe.c b/chardev/char-fe.c index a8931f7afd..b7bcbd59c0 100644 --- a/chardev/char-fe.c +++ b/chardev/char-fe.c @@ -246,14 +246,15 @@ void qemu_chr_fe_deinit(CharBackend *b, bool del) } } =20 -void qemu_chr_fe_set_handlers(CharBackend *b, - IOCanReadHandler *fd_can_read, - IOReadHandler *fd_read, - IOEventHandler *fd_event, - BackendChangeHandler *be_change, - void *opaque, - GMainContext *context, - bool set_open) +void qemu_chr_fe_set_handlers_full(CharBackend *b, + IOCanReadHandler *fd_can_read, + IOReadHandler *fd_read, + IOEventHandler *fd_event, + BackendChangeHandler *be_change, + void *opaque, + GMainContext *context, + bool set_open, + bool sync_state) { Chardev *s; int fe_open; @@ -285,7 +286,7 @@ void qemu_chr_fe_set_handlers(CharBackend *b, qemu_chr_fe_take_focus(b); /* We're connecting to an already opened device, so let's make sur= e we also get the open event */ - if (s->be_open) { + if (sync_state && s->be_open) { qemu_chr_be_event(s, CHR_EVENT_OPENED); } } @@ -295,6 +296,20 @@ void qemu_chr_fe_set_handlers(CharBackend *b, } } =20 +void qemu_chr_fe_set_handlers(CharBackend *b, + IOCanReadHandler *fd_can_read, + IOReadHandler *fd_read, + IOEventHandler *fd_event, + BackendChangeHandler *be_change, + void *opaque, + GMainContext *context, + bool set_open) +{ + qemu_chr_fe_set_handlers_full(b, fd_can_read, fd_read, fd_event, be_ch= ange, + opaque, context, set_open, + true); +} + void qemu_chr_fe_take_focus(CharBackend *b) { if (!b->chr) { diff --git a/chardev/char-mux.c b/chardev/char-mux.c index 6055e76293..1199d32674 100644 --- a/chardev/char-mux.c +++ b/chardev/char-mux.c @@ -283,13 +283,13 @@ void mux_chr_set_handlers(Chardev *chr, GMainContext = *context) MuxChardev *d =3D MUX_CHARDEV(chr); =20 /* Fix up the real driver with mux routines */ - qemu_chr_fe_set_handlers(&d->chr, - mux_chr_can_read, - mux_chr_read, - mux_chr_event, - NULL, - chr, - context, true); + qemu_chr_fe_set_handlers_full(&d->chr, + mux_chr_can_read, + mux_chr_read, + mux_chr_event, + NULL, + chr, + context, true, false); } =20 void mux_set_focus(Chardev *chr, int focus) @@ -367,7 +367,7 @@ static int open_muxes(Chardev *chr) * mark mux as OPENED so any new FEs will immediately receive * OPENED event */ - qemu_chr_be_event(chr, CHR_EVENT_OPENED); + chr->be_open =3D 1; =20 return 0; } --=20 2.20.1.519.g8feddda32c From nobody Thu Apr 25 17:50:00 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.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; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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Thu, 7 Feb 2019 16:07:40 +0000 (UTC) Received: from localhost (unknown [10.36.112.15]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6921862460; Thu, 7 Feb 2019 16:07:40 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Thu, 7 Feb 2019 17:06:17 +0100 Message-Id: <20190207160617.1142-19-marcandre.lureau@redhat.com> In-Reply-To: <20190207160617.1142-1-marcandre.lureau@redhat.com> References: <20190207160617.1142-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Thu, 07 Feb 2019 16:07:41 +0000 (UTC) Content-Transfer-Encoding: quoted-printable 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 18/18] tests/test-char: add muxed chardev testing for open/close 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: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Artem Pisarenko , peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Artem Pisarenko Validate that frontend callbacks for CHR_EVENT_OPENED/CHR_EVENT_CLOSED events are being issued when expected and in strictly pairing order. Signed-off-by: Artem Pisarenko Reviewed-by: Marc-Andr=C3=A9 Lureau Message-Id: --- tests/test-char.c | 80 +++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 78 insertions(+), 2 deletions(-) diff --git a/tests/test-char.c b/tests/test-char.c index 8b478bb67d..82579e6aa5 100644 --- a/tests/test-char.c +++ b/tests/test-char.c @@ -19,6 +19,9 @@ static bool quit; =20 typedef struct FeHandler { int read_count; + bool is_open; + int openclose_count; + bool openclose_mismatch; int last_event; char read_buf[128]; } FeHandler; @@ -52,10 +55,24 @@ static void fe_read(void *opaque, const uint8_t *buf, i= nt size) static void fe_event(void *opaque, int event) { FeHandler *h =3D opaque; + bool new_open_state; =20 h->last_event =3D event; - if (event !=3D CHR_EVENT_BREAK) { + switch (event) { + case CHR_EVENT_BREAK: + break; + case CHR_EVENT_OPENED: + case CHR_EVENT_CLOSED: + h->openclose_count++; + new_open_state =3D (event =3D=3D CHR_EVENT_OPENED); + if (h->is_open =3D=3D new_open_state) { + h->openclose_mismatch =3D true; + } + h->is_open =3D new_open_state; + /* no break */ + default: quit =3D true; + break; } } =20 @@ -164,7 +181,7 @@ static void char_mux_test(void) QemuOpts *opts; Chardev *chr, *base; char *data; - FeHandler h1 =3D { 0, }, h2 =3D { 0, }; + FeHandler h1 =3D { 0, false, 0, false, }, h2 =3D { 0, false, 0, false,= }; CharBackend chr_be1, chr_be2; =20 opts =3D qemu_opts_create(qemu_find_opts("chardev"), "mux-label", @@ -236,6 +253,65 @@ static void char_mux_test(void) g_assert_cmpint(h1.last_event, =3D=3D, CHR_EVENT_BREAK); g_assert_cmpint(h2.last_event, =3D=3D, CHR_EVENT_MUX_OUT); =20 + /* open/close state and corresponding events */ + g_assert_true(qemu_chr_fe_backend_open(&chr_be1)); + g_assert_true(qemu_chr_fe_backend_open(&chr_be2)); + g_assert_true(h1.is_open); + g_assert_false(h1.openclose_mismatch); + g_assert_true(h2.is_open); + g_assert_false(h2.openclose_mismatch); + + h1.openclose_count =3D h2.openclose_count =3D 0; + + qemu_chr_fe_set_handlers(&chr_be1, NULL, NULL, NULL, NULL, + NULL, NULL, false); + qemu_chr_fe_set_handlers(&chr_be2, NULL, NULL, NULL, NULL, + NULL, NULL, false); + g_assert_cmpint(h1.openclose_count, =3D=3D, 0); + g_assert_cmpint(h2.openclose_count, =3D=3D, 0); + + h1.is_open =3D h2.is_open =3D false; + qemu_chr_fe_set_handlers(&chr_be1, + NULL, + NULL, + fe_event, + NULL, + &h1, + NULL, false); + qemu_chr_fe_set_handlers(&chr_be2, + NULL, + NULL, + fe_event, + NULL, + &h2, + NULL, false); + g_assert_cmpint(h1.openclose_count, =3D=3D, 1); + g_assert_false(h1.openclose_mismatch); + g_assert_cmpint(h2.openclose_count, =3D=3D, 1); + g_assert_false(h2.openclose_mismatch); + + qemu_chr_be_event(base, CHR_EVENT_CLOSED); + qemu_chr_be_event(base, CHR_EVENT_OPENED); + g_assert_cmpint(h1.openclose_count, =3D=3D, 3); + g_assert_false(h1.openclose_mismatch); + g_assert_cmpint(h2.openclose_count, =3D=3D, 3); + g_assert_false(h2.openclose_mismatch); + + qemu_chr_fe_set_handlers(&chr_be2, + fe_can_read, + fe_read, + fe_event, + NULL, + &h2, + NULL, false); + qemu_chr_fe_set_handlers(&chr_be1, + fe_can_read, + fe_read, + fe_event, + NULL, + &h1, + NULL, false); + /* remove first handler */ qemu_chr_fe_set_handlers(&chr_be1, NULL, NULL, NULL, NULL, NULL, NULL, true); --=20 2.20.1.519.g8feddda32c