From patchwork Fri Oct 28 05:48:34 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Wang X-Patchwork-Id: 13023097 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 66FC2C38A02 for ; Fri, 28 Oct 2022 05:52:48 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ooIGY-00088D-PP; Fri, 28 Oct 2022 01:50:50 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ooIG1-0007cI-S7 for qemu-devel@nongnu.org; Fri, 28 Oct 2022 01:50:18 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ooIFy-0007wC-8P for qemu-devel@nongnu.org; Fri, 28 Oct 2022 01:50:17 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1666936209; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=5DPV1hhmtUzj3WLovLV41YwsXCN50Un0bsbC4VKS5FY=; b=SNkyhbQbpLz4seIuRaFpbjUUeyrXQlLzKKUxtLZzX3grVbU9NQ70t5fdDpOG25T/bjqpBs fUbxLLxVWI433iQGFZWwoji23uG0whLHZBvJlbxsCfPjeX4r5nwYZ3q8H7b/rUnv3QfJdy gYCJVwbf7BvXQgQuX3g2cuhwJ0iTpkU= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-398-27TpunqXNEakZK035cmCqA-1; Fri, 28 Oct 2022 01:50:07 -0400 X-MC-Unique: 27TpunqXNEakZK035cmCqA-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 99995811E7A for ; Fri, 28 Oct 2022 05:50:06 +0000 (UTC) Received: from localhost.localdomain (ovpn-13-50.pek2.redhat.com [10.72.13.50]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3D911C15BA8; Fri, 28 Oct 2022 05:50:03 +0000 (UTC) From: Jason Wang To: stefanha@redhat.com, qemu-devel@nongnu.org Cc: Laurent Vivier , "Michael S . Tsirkin" , Jason Wang Subject: [PULL 25/26] net: stream: move to QIO to enable additional parameters Date: Fri, 28 Oct 2022 13:48:34 +0800 Message-Id: <20221028054835.29674-26-jasowang@redhat.com> In-Reply-To: <20221028054835.29674-1-jasowang@redhat.com> References: <20221028054835.29674-1-jasowang@redhat.com> MIME-Version: 1.0 Content-type: text/plain X-Scanned-By: MIMEDefang 3.1 on 10.11.54.8 Received-SPF: pass client-ip=170.10.133.124; envelope-from=jasowang@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.515, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Qemu-devel" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Laurent Vivier Use QIOChannel, QIOChannelSocket and QIONetListener. This allows net/stream to use all the available parameters provided by SocketAddress. Signed-off-by: Laurent Vivier Acked-by: Michael S. Tsirkin Signed-off-by: Jason Wang --- net/stream.c | 492 ++++++++++++++++++++------------------------------------ qemu-options.hx | 4 +- 2 files changed, 178 insertions(+), 318 deletions(-) diff --git a/net/stream.c b/net/stream.c index 884f473..54c67e1 100644 --- a/net/stream.c +++ b/net/stream.c @@ -35,48 +35,36 @@ #include "qemu/iov.h" #include "qemu/main-loop.h" #include "qemu/cutils.h" +#include "io/channel.h" +#include "io/channel-socket.h" +#include "io/net-listener.h" typedef struct NetStreamState { NetClientState nc; - int listen_fd; - int fd; + QIOChannel *listen_ioc; + QIONetListener *listener; + QIOChannel *ioc; + guint ioc_read_tag; + guint ioc_write_tag; SocketReadState rs; unsigned int send_index; /* number of bytes sent*/ - bool read_poll; /* waiting to receive data? */ - bool write_poll; /* waiting to transmit data? */ } NetStreamState; -static void net_stream_send(void *opaque); -static void net_stream_accept(void *opaque); -static void net_stream_writable(void *opaque); +static void net_stream_listen(QIONetListener *listener, + QIOChannelSocket *cioc, + void *opaque); -static void net_stream_update_fd_handler(NetStreamState *s) +static gboolean net_stream_writable(QIOChannel *ioc, + GIOCondition condition, + gpointer data) { - qemu_set_fd_handler(s->fd, - s->read_poll ? net_stream_send : NULL, - s->write_poll ? net_stream_writable : NULL, - s); -} - -static void net_stream_read_poll(NetStreamState *s, bool enable) -{ - s->read_poll = enable; - net_stream_update_fd_handler(s); -} - -static void net_stream_write_poll(NetStreamState *s, bool enable) -{ - s->write_poll = enable; - net_stream_update_fd_handler(s); -} - -static void net_stream_writable(void *opaque) -{ - NetStreamState *s = opaque; + NetStreamState *s = data; - net_stream_write_poll(s, false); + s->ioc_write_tag = 0; qemu_flush_queued_packets(&s->nc); + + return G_SOURCE_REMOVE; } static ssize_t net_stream_receive(NetClientState *nc, const uint8_t *buf, @@ -93,13 +81,15 @@ static ssize_t net_stream_receive(NetClientState *nc, const uint8_t *buf, .iov_len = size, }, }; + struct iovec local_iov[2]; + unsigned int nlocal_iov; size_t remaining; ssize_t ret; remaining = iov_size(iov, 2) - s->send_index; - ret = iov_send(s->fd, iov, 2, s->send_index, remaining); - - if (ret == -1 && errno == EAGAIN) { + nlocal_iov = iov_copy(local_iov, 2, iov, 2, s->send_index, remaining); + ret = qio_channel_writev(s->ioc, local_iov, nlocal_iov, NULL); + if (ret == QIO_CHANNEL_ERR_BLOCK) { ret = 0; /* handled further down */ } if (ret == -1) { @@ -108,19 +98,25 @@ static ssize_t net_stream_receive(NetClientState *nc, const uint8_t *buf, } if (ret < (ssize_t)remaining) { s->send_index += ret; - net_stream_write_poll(s, true); + s->ioc_write_tag = qio_channel_add_watch(s->ioc, G_IO_OUT, + net_stream_writable, s, NULL); return 0; } s->send_index = 0; return size; } +static gboolean net_stream_send(QIOChannel *ioc, + GIOCondition condition, + gpointer data); + static void net_stream_send_completed(NetClientState *nc, ssize_t len) { NetStreamState *s = DO_UPCAST(NetStreamState, nc, nc); - if (!s->read_poll) { - net_stream_read_poll(s, true); + if (!s->ioc_read_tag) { + s->ioc_read_tag = qio_channel_add_watch(s->ioc, G_IO_IN, + net_stream_send, s, NULL); } } @@ -131,19 +127,24 @@ static void net_stream_rs_finalize(SocketReadState *rs) if (qemu_send_packet_async(&s->nc, rs->buf, rs->packet_len, net_stream_send_completed) == 0) { - net_stream_read_poll(s, false); + if (s->ioc_read_tag) { + g_source_remove(s->ioc_read_tag); + s->ioc_read_tag = 0; + } } } -static void net_stream_send(void *opaque) +static gboolean net_stream_send(QIOChannel *ioc, + GIOCondition condition, + gpointer data) { - NetStreamState *s = opaque; + NetStreamState *s = data; int size; int ret; - uint8_t buf1[NET_BUFSIZE]; - const uint8_t *buf; + char buf1[NET_BUFSIZE]; + const char *buf; - size = recv(s->fd, buf1, sizeof(buf1), 0); + size = qio_channel_read(s->ioc, buf1, sizeof(buf1), NULL); if (size < 0) { if (errno != EWOULDBLOCK) { goto eoc; @@ -151,51 +152,63 @@ static void net_stream_send(void *opaque) } else if (size == 0) { /* end of connection */ eoc: - net_stream_read_poll(s, false); - net_stream_write_poll(s, false); - if (s->listen_fd != -1) { - qemu_set_fd_handler(s->listen_fd, net_stream_accept, NULL, s); + s->ioc_read_tag = 0; + if (s->ioc_write_tag) { + g_source_remove(s->ioc_write_tag); + s->ioc_write_tag = 0; } - closesocket(s->fd); + if (s->listener) { + qio_net_listener_set_client_func(s->listener, net_stream_listen, + s, NULL); + } + object_unref(OBJECT(s->ioc)); + s->ioc = NULL; - s->fd = -1; net_socket_rs_init(&s->rs, net_stream_rs_finalize, false); s->nc.link_down = true; qemu_set_info_str(&s->nc, ""); - return; + return G_SOURCE_REMOVE; } buf = buf1; - ret = net_fill_rstate(&s->rs, buf, size); + ret = net_fill_rstate(&s->rs, (const uint8_t *)buf, size); if (ret == -1) { goto eoc; } + + return G_SOURCE_CONTINUE; } static void net_stream_cleanup(NetClientState *nc) { NetStreamState *s = DO_UPCAST(NetStreamState, nc, nc); - if (s->fd != -1) { - net_stream_read_poll(s, false); - net_stream_write_poll(s, false); - close(s->fd); - s->fd = -1; + if (s->ioc) { + if (QIO_CHANNEL_SOCKET(s->ioc)->fd != -1) { + if (s->ioc_read_tag) { + g_source_remove(s->ioc_read_tag); + s->ioc_read_tag = 0; + } + if (s->ioc_write_tag) { + g_source_remove(s->ioc_write_tag); + s->ioc_write_tag = 0; + } + } + object_unref(OBJECT(s->ioc)); + s->ioc = NULL; } - if (s->listen_fd != -1) { - qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL); - closesocket(s->listen_fd); - s->listen_fd = -1; + if (s->listen_ioc) { + if (s->listener) { + qio_net_listener_disconnect(s->listener); + object_unref(OBJECT(s->listener)); + s->listener = NULL; + } + object_unref(OBJECT(s->listen_ioc)); + s->listen_ioc = NULL; } } -static void net_stream_connect(void *opaque) -{ - NetStreamState *s = opaque; - net_stream_read_poll(s, true); -} - static NetClientInfo net_stream_info = { .type = NET_CLIENT_DRIVER_STREAM, .size = sizeof(NetStreamState), @@ -203,76 +216,66 @@ static NetClientInfo net_stream_info = { .cleanup = net_stream_cleanup, }; -static NetStreamState *net_stream_fd_init(NetClientState *peer, - const char *model, - const char *name, - int fd, int is_connected) +static void net_stream_listen(QIONetListener *listener, + QIOChannelSocket *cioc, + void *opaque) { - NetClientState *nc; - NetStreamState *s; - - nc = qemu_new_net_client(&net_stream_info, peer, model, name); + NetStreamState *s = opaque; + SocketAddress *addr; + char *uri; - qemu_set_info_str(nc, "fd=%d", fd); + object_ref(OBJECT(cioc)); - s = DO_UPCAST(NetStreamState, nc, nc); + qio_net_listener_set_client_func(s->listener, NULL, s, NULL); - s->fd = fd; - s->listen_fd = -1; - net_socket_rs_init(&s->rs, net_stream_rs_finalize, false); + s->ioc = QIO_CHANNEL(cioc); + qio_channel_set_name(s->ioc, "stream-server"); + s->nc.link_down = false; - /* Disable Nagle algorithm on TCP sockets to reduce latency */ - socket_set_nodelay(fd); + s->ioc_read_tag = qio_channel_add_watch(s->ioc, G_IO_IN, net_stream_send, + s, NULL); - if (is_connected) { - net_stream_connect(s); + if (cioc->localAddr.ss_family == AF_UNIX) { + addr = qio_channel_socket_get_local_address(cioc, NULL); } else { - qemu_set_fd_handler(s->fd, NULL, net_stream_connect, s); + addr = qio_channel_socket_get_remote_address(cioc, NULL); } - return s; + g_assert(addr != NULL); + uri = socket_uri(addr); + qemu_set_info_str(&s->nc, uri); + g_free(uri); + qapi_free_SocketAddress(addr); } -static void net_stream_accept(void *opaque) +static void net_stream_server_listening(QIOTask *task, gpointer opaque) { NetStreamState *s = opaque; - struct sockaddr_storage saddr; - socklen_t len; - int fd; - - for (;;) { - len = sizeof(saddr); - fd = qemu_accept(s->listen_fd, (struct sockaddr *)&saddr, &len); - if (fd < 0 && errno != EINTR) { - return; - } else if (fd >= 0) { - qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL); - break; - } - } + QIOChannelSocket *listen_sioc = QIO_CHANNEL_SOCKET(s->listen_ioc); + SocketAddress *addr; + int ret; - s->fd = fd; - s->nc.link_down = false; - net_stream_connect(s); - switch (saddr.ss_family) { - case AF_INET: { - struct sockaddr_in *saddr_in = (struct sockaddr_in *)&saddr; - - qemu_set_info_str(&s->nc, "connection from %s:%d", - inet_ntoa(saddr_in->sin_addr), - ntohs(saddr_in->sin_port)); - break; + if (listen_sioc->fd < 0) { + qemu_set_info_str(&s->nc, "connection error"); + return; } - case AF_UNIX: { - struct sockaddr_un saddr_un; - len = sizeof(saddr_un); - getsockname(s->listen_fd, (struct sockaddr *)&saddr_un, &len); - qemu_set_info_str(&s->nc, "connect from %s", saddr_un.sun_path); - break; - } - default: - g_assert_not_reached(); + addr = qio_channel_socket_get_local_address(listen_sioc, NULL); + g_assert(addr != NULL); + ret = qemu_socket_try_set_nonblock(listen_sioc->fd); + if (addr->type == SOCKET_ADDRESS_TYPE_FD && ret < 0) { + qemu_set_info_str(&s->nc, "can't use file descriptor %s (errno %d)", + addr->u.fd.str, -ret); + return; } + g_assert(ret == 0); + qapi_free_SocketAddress(addr); + + s->nc.link_down = true; + s->listener = qio_net_listener_new(); + + net_socket_rs_init(&s->rs, net_stream_rs_finalize, false); + qio_net_listener_set_client_func(s->listener, net_stream_listen, s, NULL); + qio_net_listener_add(s->listener, listen_sioc); } static int net_stream_server_init(NetClientState *peer, @@ -283,105 +286,61 @@ static int net_stream_server_init(NetClientState *peer, { NetClientState *nc; NetStreamState *s; - int fd, ret; + QIOChannelSocket *listen_sioc = qio_channel_socket_new(); - switch (addr->type) { - case SOCKET_ADDRESS_TYPE_INET: { - struct sockaddr_in saddr_in; - - if (convert_host_port(&saddr_in, addr->u.inet.host, addr->u.inet.port, - errp) < 0) { - return -1; - } - - fd = qemu_socket(PF_INET, SOCK_STREAM, 0); - if (fd < 0) { - error_setg_errno(errp, errno, "can't create stream socket"); - return -1; - } - qemu_socket_set_nonblock(fd); + nc = qemu_new_net_client(&net_stream_info, peer, model, name); + s = DO_UPCAST(NetStreamState, nc, nc); - socket_set_fast_reuse(fd); + s->listen_ioc = QIO_CHANNEL(listen_sioc); + qio_channel_socket_listen_async(listen_sioc, addr, 0, + net_stream_server_listening, s, + NULL, NULL); - ret = bind(fd, (struct sockaddr *)&saddr_in, sizeof(saddr_in)); - if (ret < 0) { - error_setg_errno(errp, errno, "can't bind ip=%s to socket", - inet_ntoa(saddr_in.sin_addr)); - closesocket(fd); - return -1; - } - break; - } - case SOCKET_ADDRESS_TYPE_UNIX: { - struct sockaddr_un saddr_un; - - ret = unlink(addr->u.q_unix.path); - if (ret < 0 && errno != ENOENT) { - error_setg_errno(errp, errno, "failed to unlink socket %s", - addr->u.q_unix.path); - return -1; - } + return 0; +} - saddr_un.sun_family = PF_UNIX; - ret = snprintf(saddr_un.sun_path, sizeof(saddr_un.sun_path), "%s", - addr->u.q_unix.path); - if (ret < 0 || ret >= sizeof(saddr_un.sun_path)) { - error_setg(errp, "UNIX socket path '%s' is too long", - addr->u.q_unix.path); - error_append_hint(errp, "Path must be less than %zu bytes\n", - sizeof(saddr_un.sun_path)); - return -1; - } +static void net_stream_client_connected(QIOTask *task, gpointer opaque) +{ + NetStreamState *s = opaque; + QIOChannelSocket *sioc = QIO_CHANNEL_SOCKET(s->ioc); + SocketAddress *addr; + gchar *uri; + int ret; - fd = qemu_socket(PF_UNIX, SOCK_STREAM, 0); - if (fd < 0) { - error_setg_errno(errp, errno, "can't create stream socket"); - return -1; - } - qemu_socket_set_nonblock(fd); - - ret = bind(fd, (struct sockaddr *)&saddr_un, sizeof(saddr_un)); - if (ret < 0) { - error_setg_errno(errp, errno, "can't create socket with path: %s", - saddr_un.sun_path); - closesocket(fd); - return -1; - } - break; - } - case SOCKET_ADDRESS_TYPE_FD: - fd = monitor_fd_param(monitor_cur(), addr->u.fd.str, errp); - if (fd == -1) { - return -1; - } - ret = qemu_socket_try_set_nonblock(fd); - if (ret < 0) { - error_setg_errno(errp, -ret, "%s: Can't use file descriptor %d", - name, fd); - return -1; - } - break; - default: - error_setg(errp, "only support inet or fd type"); - return -1; + if (sioc->fd < 0) { + qemu_set_info_str(&s->nc, "connection error"); + goto error; } - ret = listen(fd, 0); - if (ret < 0) { - error_setg_errno(errp, errno, "can't listen on socket"); - closesocket(fd); - return -1; + addr = qio_channel_socket_get_remote_address(sioc, NULL); + g_assert(addr != NULL); + uri = socket_uri(addr); + qemu_set_info_str(&s->nc, uri); + g_free(uri); + + ret = qemu_socket_try_set_nonblock(sioc->fd); + if (addr->type == SOCKET_ADDRESS_TYPE_FD && ret < 0) { + qemu_set_info_str(&s->nc, "can't use file descriptor %s (errno %d)", + addr->u.fd.str, -ret); + qapi_free_SocketAddress(addr); + goto error; } + g_assert(ret == 0); - nc = qemu_new_net_client(&net_stream_info, peer, model, name); - s = DO_UPCAST(NetStreamState, nc, nc); - s->fd = -1; - s->listen_fd = fd; - s->nc.link_down = true; net_socket_rs_init(&s->rs, net_stream_rs_finalize, false); - qemu_set_fd_handler(s->listen_fd, net_stream_accept, NULL, s); - return 0; + /* Disable Nagle algorithm on TCP sockets to reduce latency */ + qio_channel_set_delay(s->ioc, false); + + s->ioc_read_tag = qio_channel_add_watch(s->ioc, G_IO_IN, net_stream_send, + s, NULL); + s->nc.link_down = false; + qapi_free_SocketAddress(addr); + + return; +error: + object_unref(OBJECT(s->ioc)); + s->ioc = NULL; } static int net_stream_client_init(NetClientState *peer, @@ -391,118 +350,19 @@ static int net_stream_client_init(NetClientState *peer, Error **errp) { NetStreamState *s; - struct sockaddr_in saddr_in; - struct sockaddr_un saddr_un; - int fd, connected, ret; - - switch (addr->type) { - case SOCKET_ADDRESS_TYPE_INET: - if (convert_host_port(&saddr_in, addr->u.inet.host, addr->u.inet.port, - errp) < 0) { - return -1; - } + NetClientState *nc; + QIOChannelSocket *sioc = qio_channel_socket_new(); - fd = qemu_socket(PF_INET, SOCK_STREAM, 0); - if (fd < 0) { - error_setg_errno(errp, errno, "can't create stream socket"); - return -1; - } - qemu_socket_set_nonblock(fd); - - connected = 0; - for (;;) { - ret = connect(fd, (struct sockaddr *)&saddr_in, sizeof(saddr_in)); - if (ret < 0) { - if (errno == EINTR || errno == EWOULDBLOCK) { - /* continue */ - } else if (errno == EINPROGRESS || - errno == EALREADY) { - break; - } else { - error_setg_errno(errp, errno, "can't connect socket"); - closesocket(fd); - return -1; - } - } else { - connected = 1; - break; - } - } - break; - case SOCKET_ADDRESS_TYPE_UNIX: - saddr_un.sun_family = PF_UNIX; - ret = snprintf(saddr_un.sun_path, sizeof(saddr_un.sun_path), "%s", - addr->u.q_unix.path); - if (ret < 0 || ret >= sizeof(saddr_un.sun_path)) { - error_setg(errp, "UNIX socket path '%s' is too long", - addr->u.q_unix.path); - error_append_hint(errp, "Path must be less than %zu bytes\n", - sizeof(saddr_un.sun_path)); - return -1; - } + nc = qemu_new_net_client(&net_stream_info, peer, model, name); + s = DO_UPCAST(NetStreamState, nc, nc); - fd = qemu_socket(PF_UNIX, SOCK_STREAM, 0); - if (fd < 0) { - error_setg_errno(errp, errno, "can't create stream socket"); - return -1; - } - qemu_socket_set_nonblock(fd); - - connected = 0; - for (;;) { - ret = connect(fd, (struct sockaddr *)&saddr_un, sizeof(saddr_un)); - if (ret < 0) { - if (errno == EINTR || errno == EWOULDBLOCK) { - /* continue */ - } else if (errno == EAGAIN || - errno == EALREADY) { - break; - } else { - error_setg_errno(errp, errno, "can't connect socket"); - closesocket(fd); - return -1; - } - } else { - connected = 1; - break; - } - } - break; - case SOCKET_ADDRESS_TYPE_FD: - fd = monitor_fd_param(monitor_cur(), addr->u.fd.str, errp); - if (fd == -1) { - return -1; - } - ret = qemu_socket_try_set_nonblock(fd); - if (ret < 0) { - error_setg_errno(errp, -ret, "%s: Can't use file descriptor %d", - name, fd); - return -1; - } - connected = 1; - break; - default: - error_setg(errp, "only support inet, unix or fd type"); - return -1; - } + s->ioc = QIO_CHANNEL(sioc); + s->nc.link_down = true; + + qio_channel_socket_connect_async(sioc, addr, + net_stream_client_connected, s, + NULL, NULL); - s = net_stream_fd_init(peer, model, name, fd, connected); - - switch (addr->type) { - case SOCKET_ADDRESS_TYPE_INET: - qemu_set_info_str(&s->nc, "connect to %s:%d", - inet_ntoa(saddr_in.sin_addr), - ntohs(saddr_in.sin_port)); - break; - case SOCKET_ADDRESS_TYPE_UNIX: - qemu_set_info_str(&s->nc, " connect to %s", saddr_un.sun_path); - break; - case SOCKET_ADDRESS_TYPE_FD: - qemu_set_info_str(&s->nc, "connect to fd %d", fd); - break; - default: - g_assert_not_reached(); - } return 0; } diff --git a/qemu-options.hx b/qemu-options.hx index e76142b..ceee0dd 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -2772,8 +2772,8 @@ DEF("netdev", HAS_ARG, QEMU_OPTION_netdev, "-netdev socket,id=str[,fd=h][,udp=host:port][,localaddr=host:port]\n" " configure a network backend to connect to another network\n" " using an UDP tunnel\n" - "-netdev stream,id=str[,server=on|off],addr.type=inet,addr.host=host,addr.port=port\n" - "-netdev stream,id=str[,server=on|off],addr.type=unix,addr.path=path\n" + "-netdev stream,id=str[,server=on|off],addr.type=inet,addr.host=host,addr.port=port[,to=maxport][,numeric=on|off][,keep-alive=on|off][,mptcp=on|off][,addr.ipv4=on|off][,addr.ipv6=on|off]\n" + "-netdev stream,id=str[,server=on|off],addr.type=unix,addr.path=path[,abstract=on|off][,tight=on|off]\n" "-netdev stream,id=str[,server=on|off],addr.type=fd,addr.str=file-descriptor\n" " configure a network backend to connect to another network\n" " using a socket connection in stream mode.\n"