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/*
* QEMU System Emulator
*
* Copyright (c) 2003-2008 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "net/vde.h"
#include "config-host.h"
#include <libvdeplug.h>
#include "net.h"
#include "qemu-char.h"
#include "qemu-common.h"
#include "qemu-option.h"
#include "sysemu.h"
typedef struct VDEState {
VLANClientState *vc;
VDECONN *vde;
} VDEState;
static void vde_to_qemu(void *opaque)
{
VDEState *s = opaque;
uint8_t buf[4096];
int size;
size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0);
if (size > 0) {
qemu_send_packet(s->vc, buf, size);
}
}
static ssize_t vde_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
{
VDEState *s = vc->opaque;
ssize_t ret;
do {
ret = vde_send(s->vde, (const char *)buf, size, 0);
} while (ret < 0 && errno == EINTR);
return ret;
}
static void vde_cleanup(VLANClientState *vc)
{
VDEState *s = vc->opaque;
qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL);
vde_close(s->vde);
qemu_free(s);
}
static int net_vde_init(VLANState *vlan, const char *model,
const char *name, const char *sock,
int port, const char *group, int mode)
{
VDEState *s;
char *init_group = (char *)group;
char *init_sock = (char *)sock;
struct vde_open_args args = {
.port = port,
.group = init_group,
.mode = mode,
};
s = qemu_mallocz(sizeof(VDEState));
s->vde = vde_open(init_sock, (char *)"QEMU", &args);
if (!s->vde){
free(s);
return -1;
}
s->vc = qemu_new_vlan_client(NET_CLIENT_TYPE_VDE,
vlan, NULL, model, name, NULL,
vde_receive, NULL, NULL,
vde_cleanup, s);
qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d",
sock, vde_datafd(s->vde));
return 0;
}
int net_init_vde(QemuOpts *opts, Monitor *mon, const char *name, VLANState *vlan)
{
const char *sock;
const char *group;
int port, mode;
sock = qemu_opt_get(opts, "sock");
group = qemu_opt_get(opts, "group");
port = qemu_opt_get_number(opts, "port", 0);
mode = qemu_opt_get_number(opts, "mode", 0700);
if (net_vde_init(vlan, "vde", name, sock, port, group, mode) == -1) {
return -1;
}
if (vlan) {
vlan->nb_host_devs++;
}
return 0;
}
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