8d0bcba837
We have two issues with our qapi union layout: 1) Even though the QMP wire format spells the tag 'type', the C code spells it 'kind', requiring some hacks in the generator. 2) The C struct uses an anonymous union, which places all tag values in the same namespace as all non-variant members. This leads to spurious collisions if a tag value matches a non-variant member's name. Make the conversion to the new layout for net-related code. Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <1445898903-12082-18-git-send-email-eblake@redhat.com> [Commit message tweaked slightly] Signed-off-by: Markus Armbruster <armbru@redhat.com>
129 lines
3.6 KiB
C
129 lines
3.6 KiB
C
/*
|
|
* 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 "config-host.h"
|
|
|
|
#include <libvdeplug.h>
|
|
|
|
#include "net/net.h"
|
|
#include "clients.h"
|
|
#include "qemu-common.h"
|
|
#include "qemu/option.h"
|
|
#include "qemu/main-loop.h"
|
|
|
|
typedef struct VDEState {
|
|
NetClientState nc;
|
|
VDECONN *vde;
|
|
} VDEState;
|
|
|
|
static void vde_to_qemu(void *opaque)
|
|
{
|
|
VDEState *s = opaque;
|
|
uint8_t buf[NET_BUFSIZE];
|
|
int size;
|
|
|
|
size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0);
|
|
if (size > 0) {
|
|
qemu_send_packet(&s->nc, buf, size);
|
|
}
|
|
}
|
|
|
|
static ssize_t vde_receive(NetClientState *nc, const uint8_t *buf, size_t size)
|
|
{
|
|
VDEState *s = DO_UPCAST(VDEState, nc, nc);
|
|
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(NetClientState *nc)
|
|
{
|
|
VDEState *s = DO_UPCAST(VDEState, nc, nc);
|
|
qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL);
|
|
vde_close(s->vde);
|
|
}
|
|
|
|
static NetClientInfo net_vde_info = {
|
|
.type = NET_CLIENT_OPTIONS_KIND_VDE,
|
|
.size = sizeof(VDEState),
|
|
.receive = vde_receive,
|
|
.cleanup = vde_cleanup,
|
|
};
|
|
|
|
static int net_vde_init(NetClientState *peer, const char *model,
|
|
const char *name, const char *sock,
|
|
int port, const char *group, int mode)
|
|
{
|
|
NetClientState *nc;
|
|
VDEState *s;
|
|
VDECONN *vde;
|
|
char *init_group = (char *)group;
|
|
char *init_sock = (char *)sock;
|
|
|
|
struct vde_open_args args = {
|
|
.port = port,
|
|
.group = init_group,
|
|
.mode = mode,
|
|
};
|
|
|
|
vde = vde_open(init_sock, (char *)"QEMU", &args);
|
|
if (!vde){
|
|
return -1;
|
|
}
|
|
|
|
nc = qemu_new_net_client(&net_vde_info, peer, model, name);
|
|
|
|
snprintf(nc->info_str, sizeof(nc->info_str), "sock=%s,fd=%d",
|
|
sock, vde_datafd(vde));
|
|
|
|
s = DO_UPCAST(VDEState, nc, nc);
|
|
|
|
s->vde = vde;
|
|
|
|
qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int net_init_vde(const NetClientOptions *opts, const char *name,
|
|
NetClientState *peer, Error **errp)
|
|
{
|
|
/* FIXME error_setg(errp, ...) on failure */
|
|
const NetdevVdeOptions *vde;
|
|
|
|
assert(opts->type == NET_CLIENT_OPTIONS_KIND_VDE);
|
|
vde = opts->u.vde;
|
|
|
|
/* missing optional values have been initialized to "all bits zero" */
|
|
if (net_vde_init(peer, "vde", name, vde->sock, vde->port, vde->group,
|
|
vde->has_mode ? vde->mode : 0700) == -1) {
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|