4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 #include "config-host.h"
26 #include <libvdeplug.h>
30 #include "qemu-common.h"
31 #include "qemu-option.h"
33 typedef struct VDEState {
38 static void vde_to_qemu(void *opaque)
44 size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0);
46 qemu_send_packet(&s->nc, buf, size);
50 static ssize_t vde_receive(NetClientState *nc, const uint8_t *buf, size_t size)
52 VDEState *s = DO_UPCAST(VDEState, nc, nc);
56 ret = vde_send(s->vde, (const char *)buf, size, 0);
57 } while (ret < 0 && errno == EINTR);
62 static void vde_cleanup(NetClientState *nc)
64 VDEState *s = DO_UPCAST(VDEState, nc, nc);
65 qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL);
69 static NetClientInfo net_vde_info = {
70 .type = NET_CLIENT_OPTIONS_KIND_VDE,
71 .size = sizeof(VDEState),
72 .receive = vde_receive,
73 .cleanup = vde_cleanup,
76 static int net_vde_init(NetClientState *peer, const char *model,
77 const char *name, const char *sock,
78 int port, const char *group, int mode)
83 char *init_group = (char *)group;
84 char *init_sock = (char *)sock;
86 struct vde_open_args args = {
92 vde = vde_open(init_sock, (char *)"QEMU", &args);
97 nc = qemu_new_net_client(&net_vde_info, peer, model, name);
99 snprintf(nc->info_str, sizeof(nc->info_str), "sock=%s,fd=%d",
100 sock, vde_datafd(vde));
102 s = DO_UPCAST(VDEState, nc, nc);
106 qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
111 int net_init_vde(const NetClientOptions *opts, const char *name,
112 NetClientState *peer)
114 const NetdevVdeOptions *vde;
116 assert(opts->kind == NET_CLIENT_OPTIONS_KIND_VDE);
119 /* missing optional values have been initialized to "all bits zero" */
120 if (net_vde_init(peer, "vde", name, vde->sock, vde->port, vde->group,
121 vde->has_mode ? vde->mode : 0700) == -1) {