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aliguori63a01ef2008-10-31 19:10:00 +00001/*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
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:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
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
22 * THE SOFTWARE.
23 */
Mark McLoughlin1df49e02009-11-25 18:48:58 +000024#include "net.h"
aliguori63a01ef2008-10-31 19:10:00 +000025
blueswir1d40cdb12009-03-07 16:52:02 +000026#include "config-host.h"
27
Mark McLoughlina8ed73f2009-10-22 17:49:05 +010028#include "net/tap.h"
Mark McLoughlin42281ac2009-11-25 18:48:56 +000029#include "net/socket.h"
Mark McLoughlin1abecf72009-11-25 18:48:57 +000030#include "net/dump.h"
Mark McLoughlin68ac40d2009-11-25 18:48:54 +000031#include "net/slirp.h"
Mark McLoughlin5c361cc2009-11-25 18:48:55 +000032#include "net/vde.h"
Mark McLoughlinf1d078c2009-11-25 18:49:27 +000033#include "net/util.h"
blueswir1511d2b12009-03-07 15:32:56 +000034#include "monitor.h"
Mark McLoughlin1df49e02009-11-25 18:48:58 +000035#include "qemu-common.h"
blueswir1511d2b12009-03-07 15:32:56 +000036#include "qemu_socket.h"
Amit Shah75422b02010-02-25 17:24:43 +053037#include "hw/qdev.h"
Benjamin Poirierce053662011-02-23 19:57:21 -050038#include "iov.h"
blueswir1511d2b12009-03-07 15:32:56 +000039
Mark McLoughlin5610c3a2009-10-08 19:58:23 +010040static QTAILQ_HEAD(, VLANState) vlans;
Mark McLoughlin577c4af2009-10-08 19:58:28 +010041static QTAILQ_HEAD(, VLANClientState) non_vlan_clients;
aliguori63a01ef2008-10-31 19:10:00 +000042
Gerd Hoffmanncb4522c2009-12-08 13:11:47 +010043int default_net = 1;
44
aliguori63a01ef2008-10-31 19:10:00 +000045/***********************************************************/
46/* network device redirectors */
47
Mark McLoughlin68ac40d2009-11-25 18:48:54 +000048#if defined(DEBUG_NET)
aliguori63a01ef2008-10-31 19:10:00 +000049static void hex_dump(FILE *f, const uint8_t *buf, int size)
50{
51 int len, i, j, c;
52
53 for(i=0;i<size;i+=16) {
54 len = size - i;
55 if (len > 16)
56 len = 16;
57 fprintf(f, "%08x ", i);
58 for(j=0;j<16;j++) {
59 if (j < len)
60 fprintf(f, " %02x", buf[i+j]);
61 else
62 fprintf(f, " ");
63 }
64 fprintf(f, " ");
65 for(j=0;j<len;j++) {
66 c = buf[i+j];
67 if (c < ' ' || c > '~')
68 c = '.';
69 fprintf(f, "%c", c);
70 }
71 fprintf(f, "\n");
72 }
73}
74#endif
75
aliguori63a01ef2008-10-31 19:10:00 +000076static int get_str_sep(char *buf, int buf_size, const char **pp, int sep)
77{
78 const char *p, *p1;
79 int len;
80 p = *pp;
81 p1 = strchr(p, sep);
82 if (!p1)
83 return -1;
84 len = p1 - p;
85 p1++;
86 if (buf_size > 0) {
87 if (len > buf_size - 1)
88 len = buf_size - 1;
89 memcpy(buf, p, len);
90 buf[len] = '\0';
91 }
92 *pp = p1;
93 return 0;
94}
95
aliguori63a01ef2008-10-31 19:10:00 +000096int parse_host_port(struct sockaddr_in *saddr, const char *str)
97{
98 char buf[512];
99 struct hostent *he;
100 const char *p, *r;
101 int port;
102
103 p = str;
104 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
105 return -1;
106 saddr->sin_family = AF_INET;
107 if (buf[0] == '\0') {
108 saddr->sin_addr.s_addr = 0;
109 } else {
blueswir1cd390082008-11-16 13:53:32 +0000110 if (qemu_isdigit(buf[0])) {
aliguori63a01ef2008-10-31 19:10:00 +0000111 if (!inet_aton(buf, &saddr->sin_addr))
112 return -1;
113 } else {
114 if ((he = gethostbyname(buf)) == NULL)
115 return - 1;
116 saddr->sin_addr = *(struct in_addr *)he->h_addr;
117 }
118 }
119 port = strtol(p, (char **)&r, 0);
120 if (r == p)
121 return -1;
122 saddr->sin_port = htons(port);
123 return 0;
124}
125
aliguori7cb7434b2009-01-07 17:46:21 +0000126void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6])
127{
128 snprintf(vc->info_str, sizeof(vc->info_str),
aliguori4dda4062009-01-08 19:01:37 +0000129 "model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
130 vc->model,
aliguori7cb7434b2009-01-07 17:46:21 +0000131 macaddr[0], macaddr[1], macaddr[2],
132 macaddr[3], macaddr[4], macaddr[5]);
133}
134
Gerd Hoffmann76d32cb2009-10-21 15:25:22 +0200135void qemu_macaddr_default_if_unset(MACAddr *macaddr)
136{
137 static int index = 0;
138 static const MACAddr zero = { .a = { 0,0,0,0,0,0 } };
139
140 if (memcmp(macaddr, &zero, sizeof(zero)) != 0)
141 return;
142 macaddr->a[0] = 0x52;
143 macaddr->a[1] = 0x54;
144 macaddr->a[2] = 0x00;
145 macaddr->a[3] = 0x12;
146 macaddr->a[4] = 0x34;
147 macaddr->a[5] = 0x56 + index++;
148}
149
aliguori676cff22009-01-07 17:43:44 +0000150static char *assign_name(VLANClientState *vc1, const char *model)
151{
152 VLANState *vlan;
Markus Armbruster53e51d82011-06-16 18:45:36 +0200153 VLANClientState *vc;
aliguori676cff22009-01-07 17:43:44 +0000154 char buf[256];
155 int id = 0;
156
Mark McLoughlin5610c3a2009-10-08 19:58:23 +0100157 QTAILQ_FOREACH(vlan, &vlans, next) {
Mark McLoughlin5610c3a2009-10-08 19:58:23 +0100158 QTAILQ_FOREACH(vc, &vlan->clients, next) {
159 if (vc != vc1 && strcmp(vc->model, model) == 0) {
aliguori676cff22009-01-07 17:43:44 +0000160 id++;
Mark McLoughlin5610c3a2009-10-08 19:58:23 +0100161 }
162 }
aliguori676cff22009-01-07 17:43:44 +0000163 }
164
Markus Armbruster53e51d82011-06-16 18:45:36 +0200165 QTAILQ_FOREACH(vc, &non_vlan_clients, next) {
166 if (vc != vc1 && strcmp(vc->model, model) == 0) {
167 id++;
168 }
169 }
170
aliguori676cff22009-01-07 17:43:44 +0000171 snprintf(buf, sizeof(buf), "%s.%d", model, id);
172
Anthony Liguori7267c092011-08-20 22:09:37 -0500173 return g_strdup(buf);
aliguori676cff22009-01-07 17:43:44 +0000174}
175
Mark McLoughlin9a6ecb32009-10-08 19:58:32 +0100176static ssize_t qemu_deliver_packet(VLANClientState *sender,
Mark McLoughlinc0b8e492009-10-22 17:43:40 +0100177 unsigned flags,
Mark McLoughlin9a6ecb32009-10-08 19:58:32 +0100178 const uint8_t *data,
179 size_t size,
180 void *opaque);
181static ssize_t qemu_deliver_packet_iov(VLANClientState *sender,
Mark McLoughlinc0b8e492009-10-22 17:43:40 +0100182 unsigned flags,
Mark McLoughlin9a6ecb32009-10-08 19:58:32 +0100183 const struct iovec *iov,
184 int iovcnt,
185 void *opaque);
186
Mark McLoughlin45460d12009-11-25 18:49:02 +0000187VLANClientState *qemu_new_net_client(NetClientInfo *info,
188 VLANState *vlan,
189 VLANClientState *peer,
190 const char *model,
191 const char *name)
aliguori63a01ef2008-10-31 19:10:00 +0000192{
Mark McLoughlin5610c3a2009-10-08 19:58:23 +0100193 VLANClientState *vc;
194
Mark McLoughlin45460d12009-11-25 18:49:02 +0000195 assert(info->size >= sizeof(VLANClientState));
Mark McLoughlin5610c3a2009-10-08 19:58:23 +0100196
Anthony Liguori7267c092011-08-20 22:09:37 -0500197 vc = g_malloc0(info->size);
Mark McLoughlin45460d12009-11-25 18:49:02 +0000198
Mark McLoughlin665a3b02009-11-25 18:49:30 +0000199 vc->info = info;
Anthony Liguori7267c092011-08-20 22:09:37 -0500200 vc->model = g_strdup(model);
Mark McLoughlin45460d12009-11-25 18:49:02 +0000201 if (name) {
Anthony Liguori7267c092011-08-20 22:09:37 -0500202 vc->name = g_strdup(name);
Mark McLoughlin45460d12009-11-25 18:49:02 +0000203 } else {
aliguori7a9f6e42009-01-07 17:48:51 +0000204 vc->name = assign_name(vc, model);
Mark McLoughlin45460d12009-11-25 18:49:02 +0000205 }
aliguori63a01ef2008-10-31 19:10:00 +0000206
Mark McLoughlind80b9fc2009-10-08 19:58:24 +0100207 if (vlan) {
Mark McLoughlin283c7c62009-10-08 19:58:30 +0100208 assert(!peer);
Mark McLoughlind80b9fc2009-10-08 19:58:24 +0100209 vc->vlan = vlan;
210 QTAILQ_INSERT_TAIL(&vc->vlan->clients, vc, next);
Mark McLoughlin577c4af2009-10-08 19:58:28 +0100211 } else {
Mark McLoughlin283c7c62009-10-08 19:58:30 +0100212 if (peer) {
Markus Armbruster27f3f8a2010-02-26 15:50:51 +0100213 assert(!peer->peer);
Mark McLoughlin283c7c62009-10-08 19:58:30 +0100214 vc->peer = peer;
215 peer->peer = vc;
216 }
Mark McLoughlin577c4af2009-10-08 19:58:28 +0100217 QTAILQ_INSERT_TAIL(&non_vlan_clients, vc, next);
Mark McLoughlin9a6ecb32009-10-08 19:58:32 +0100218
219 vc->send_queue = qemu_new_net_queue(qemu_deliver_packet,
220 qemu_deliver_packet_iov,
221 vc);
Mark McLoughlind80b9fc2009-10-08 19:58:24 +0100222 }
Mark McLoughlin5610c3a2009-10-08 19:58:23 +0100223
aliguori63a01ef2008-10-31 19:10:00 +0000224 return vc;
225}
226
Mark McLoughlinebef2c02009-11-25 18:49:10 +0000227NICState *qemu_new_nic(NetClientInfo *info,
228 NICConf *conf,
229 const char *model,
230 const char *name,
231 void *opaque)
232{
233 VLANClientState *nc;
234 NICState *nic;
235
236 assert(info->type == NET_CLIENT_TYPE_NIC);
237 assert(info->size >= sizeof(NICState));
238
239 nc = qemu_new_net_client(info, conf->vlan, conf->peer, model, name);
240
241 nic = DO_UPCAST(NICState, nc, nc);
242 nic->conf = conf;
243 nic->opaque = opaque;
244
245 return nic;
246}
247
Michael S. Tsirkina083a892010-09-20 18:08:41 +0200248static void qemu_cleanup_vlan_client(VLANClientState *vc)
aliguori63a01ef2008-10-31 19:10:00 +0000249{
Mark McLoughlind80b9fc2009-10-08 19:58:24 +0100250 if (vc->vlan) {
251 QTAILQ_REMOVE(&vc->vlan->clients, vc, next);
Mark McLoughlin577c4af2009-10-08 19:58:28 +0100252 } else {
253 QTAILQ_REMOVE(&non_vlan_clients, vc, next);
Mark McLoughlind80b9fc2009-10-08 19:58:24 +0100254 }
aliguori63a01ef2008-10-31 19:10:00 +0000255
Mark McLoughlin665a3b02009-11-25 18:49:30 +0000256 if (vc->info->cleanup) {
257 vc->info->cleanup(vc);
Mark McLoughlin5610c3a2009-10-08 19:58:23 +0100258 }
Michael S. Tsirkina083a892010-09-20 18:08:41 +0200259}
Mark McLoughlin5610c3a2009-10-08 19:58:23 +0100260
Michael S. Tsirkina083a892010-09-20 18:08:41 +0200261static void qemu_free_vlan_client(VLANClientState *vc)
262{
263 if (!vc->vlan) {
264 if (vc->send_queue) {
265 qemu_del_net_queue(vc->send_queue);
266 }
267 if (vc->peer) {
268 vc->peer->peer = NULL;
269 }
270 }
Anthony Liguori7267c092011-08-20 22:09:37 -0500271 g_free(vc->name);
272 g_free(vc->model);
273 g_free(vc);
aliguori63a01ef2008-10-31 19:10:00 +0000274}
275
Michael S. Tsirkina083a892010-09-20 18:08:41 +0200276void qemu_del_vlan_client(VLANClientState *vc)
277{
278 /* If there is a peer NIC, delete and cleanup client, but do not free. */
279 if (!vc->vlan && vc->peer && vc->peer->info->type == NET_CLIENT_TYPE_NIC) {
280 NICState *nic = DO_UPCAST(NICState, nc, vc->peer);
281 if (nic->peer_deleted) {
282 return;
283 }
284 nic->peer_deleted = true;
285 /* Let NIC know peer is gone. */
286 vc->peer->link_down = true;
287 if (vc->peer->info->link_status_changed) {
288 vc->peer->info->link_status_changed(vc->peer);
289 }
290 qemu_cleanup_vlan_client(vc);
291 return;
292 }
293
294 /* If this is a peer NIC and peer has already been deleted, free it now. */
295 if (!vc->vlan && vc->peer && vc->info->type == NET_CLIENT_TYPE_NIC) {
296 NICState *nic = DO_UPCAST(NICState, nc, vc);
297 if (nic->peer_deleted) {
298 qemu_free_vlan_client(vc->peer);
299 }
300 }
301
302 qemu_cleanup_vlan_client(vc);
303 qemu_free_vlan_client(vc);
304}
305
Mark McLoughlin68ac40d2009-11-25 18:48:54 +0000306VLANClientState *
Jan Kiszka1a609522009-06-24 14:42:31 +0200307qemu_find_vlan_client_by_name(Monitor *mon, int vlan_id,
308 const char *client_str)
309{
310 VLANState *vlan;
311 VLANClientState *vc;
312
313 vlan = qemu_find_vlan(vlan_id, 0);
314 if (!vlan) {
315 monitor_printf(mon, "unknown VLAN %d\n", vlan_id);
316 return NULL;
317 }
318
Mark McLoughlin5610c3a2009-10-08 19:58:23 +0100319 QTAILQ_FOREACH(vc, &vlan->clients, next) {
Jan Kiszka1a609522009-06-24 14:42:31 +0200320 if (!strcmp(vc->name, client_str)) {
321 break;
322 }
323 }
324 if (!vc) {
325 monitor_printf(mon, "can't find device %s on VLAN %d\n",
326 client_str, vlan_id);
327 }
328
329 return vc;
330}
331
Mark McLoughlin57f9ef12009-11-25 18:49:31 +0000332void qemu_foreach_nic(qemu_nic_foreach func, void *opaque)
333{
334 VLANClientState *nc;
335 VLANState *vlan;
336
337 QTAILQ_FOREACH(nc, &non_vlan_clients, next) {
338 if (nc->info->type == NET_CLIENT_TYPE_NIC) {
339 func(DO_UPCAST(NICState, nc, nc), opaque);
340 }
341 }
342
343 QTAILQ_FOREACH(vlan, &vlans, next) {
344 QTAILQ_FOREACH(nc, &vlan->clients, next) {
345 if (nc->info->type == NET_CLIENT_TYPE_NIC) {
346 func(DO_UPCAST(NICState, nc, nc), opaque);
347 }
348 }
349 }
350}
351
Mark McLoughlin2e1e0642009-04-29 09:36:43 +0100352int qemu_can_send_packet(VLANClientState *sender)
aliguori63a01ef2008-10-31 19:10:00 +0000353{
Mark McLoughlin2e1e0642009-04-29 09:36:43 +0100354 VLANState *vlan = sender->vlan;
aliguori63a01ef2008-10-31 19:10:00 +0000355 VLANClientState *vc;
356
Mark McLoughlin9a6ecb32009-10-08 19:58:32 +0100357 if (sender->peer) {
Mark McLoughlin893379e2009-10-27 18:16:36 +0000358 if (sender->peer->receive_disabled) {
Mark McLoughlin9a6ecb32009-10-08 19:58:32 +0100359 return 0;
Mark McLoughlin665a3b02009-11-25 18:49:30 +0000360 } else if (sender->peer->info->can_receive &&
361 !sender->peer->info->can_receive(sender->peer)) {
Mark McLoughlin893379e2009-10-27 18:16:36 +0000362 return 0;
363 } else {
364 return 1;
Mark McLoughlin9a6ecb32009-10-08 19:58:32 +0100365 }
366 }
367
Mark McLoughlind80b9fc2009-10-08 19:58:24 +0100368 if (!sender->vlan) {
369 return 1;
370 }
371
Mark McLoughlin5610c3a2009-10-08 19:58:23 +0100372 QTAILQ_FOREACH(vc, &vlan->clients, next) {
Mark McLoughlin2e1e0642009-04-29 09:36:43 +0100373 if (vc == sender) {
374 continue;
375 }
376
Mark McLoughlincda90462009-05-18 13:13:16 +0100377 /* no can_receive() handler, they can always receive */
Vincent Palatin60c07d92011-03-02 17:25:02 -0500378 if (vc->info->can_receive && !vc->info->can_receive(vc)) {
379 return 0;
aliguori63a01ef2008-10-31 19:10:00 +0000380 }
381 }
Vincent Palatin60c07d92011-03-02 17:25:02 -0500382 return 1;
aliguori63a01ef2008-10-31 19:10:00 +0000383}
384
Mark McLoughlin9a6ecb32009-10-08 19:58:32 +0100385static ssize_t qemu_deliver_packet(VLANClientState *sender,
Mark McLoughlinc0b8e492009-10-22 17:43:40 +0100386 unsigned flags,
Mark McLoughlin9a6ecb32009-10-08 19:58:32 +0100387 const uint8_t *data,
388 size_t size,
389 void *opaque)
390{
391 VLANClientState *vc = opaque;
Mark McLoughlin893379e2009-10-27 18:16:36 +0000392 ssize_t ret;
Mark McLoughlin9a6ecb32009-10-08 19:58:32 +0100393
394 if (vc->link_down) {
395 return size;
396 }
397
Mark McLoughlin893379e2009-10-27 18:16:36 +0000398 if (vc->receive_disabled) {
399 return 0;
400 }
401
Mark McLoughlin665a3b02009-11-25 18:49:30 +0000402 if (flags & QEMU_NET_PACKET_FLAG_RAW && vc->info->receive_raw) {
403 ret = vc->info->receive_raw(vc, data, size);
Mark McLoughlin893379e2009-10-27 18:16:36 +0000404 } else {
Mark McLoughlin665a3b02009-11-25 18:49:30 +0000405 ret = vc->info->receive(vc, data, size);
Mark McLoughlin893379e2009-10-27 18:16:36 +0000406 }
407
408 if (ret == 0) {
409 vc->receive_disabled = 1;
410 };
411
412 return ret;
Mark McLoughlin9a6ecb32009-10-08 19:58:32 +0100413}
414
Mark McLoughlinf7105842009-10-08 19:58:31 +0100415static ssize_t qemu_vlan_deliver_packet(VLANClientState *sender,
Mark McLoughlinc0b8e492009-10-22 17:43:40 +0100416 unsigned flags,
Mark McLoughlinf7105842009-10-08 19:58:31 +0100417 const uint8_t *buf,
418 size_t size,
419 void *opaque)
aliguori63a01ef2008-10-31 19:10:00 +0000420{
Mark McLoughlinf7105842009-10-08 19:58:31 +0100421 VLANState *vlan = opaque;
aliguori63a01ef2008-10-31 19:10:00 +0000422 VLANClientState *vc;
Mark McLoughlin893379e2009-10-27 18:16:36 +0000423 ssize_t ret = -1;
aliguori63a01ef2008-10-31 19:10:00 +0000424
Mark McLoughlinf7105842009-10-08 19:58:31 +0100425 QTAILQ_FOREACH(vc, &vlan->clients, next) {
Mark McLoughlin3e021d42009-04-29 11:34:52 +0100426 ssize_t len;
427
428 if (vc == sender) {
429 continue;
aliguori764a4d12009-04-21 19:56:41 +0000430 }
Mark McLoughlin3e021d42009-04-29 11:34:52 +0100431
432 if (vc->link_down) {
433 ret = size;
434 continue;
435 }
436
Mark McLoughlin893379e2009-10-27 18:16:36 +0000437 if (vc->receive_disabled) {
438 ret = 0;
439 continue;
440 }
441
Mark McLoughlin665a3b02009-11-25 18:49:30 +0000442 if (flags & QEMU_NET_PACKET_FLAG_RAW && vc->info->receive_raw) {
443 len = vc->info->receive_raw(vc, buf, size);
Mark McLoughlin893379e2009-10-27 18:16:36 +0000444 } else {
Mark McLoughlin665a3b02009-11-25 18:49:30 +0000445 len = vc->info->receive(vc, buf, size);
Mark McLoughlin893379e2009-10-27 18:16:36 +0000446 }
447
448 if (len == 0) {
449 vc->receive_disabled = 1;
450 }
Mark McLoughlin3e021d42009-04-29 11:34:52 +0100451
452 ret = (ret >= 0) ? ret : len;
Mark McLoughlin893379e2009-10-27 18:16:36 +0000453
aliguori764a4d12009-04-21 19:56:41 +0000454 }
Mark McLoughlin3e021d42009-04-29 11:34:52 +0100455
456 return ret;
aliguori764a4d12009-04-21 19:56:41 +0000457}
458
Mark McLoughlin8cad5512009-06-18 18:21:29 +0100459void qemu_purge_queued_packets(VLANClientState *vc)
460{
Mark McLoughlin9a6ecb32009-10-08 19:58:32 +0100461 NetQueue *queue;
Mark McLoughlind80b9fc2009-10-08 19:58:24 +0100462
Mark McLoughlin9a6ecb32009-10-08 19:58:32 +0100463 if (!vc->peer && !vc->vlan) {
464 return;
465 }
466
467 if (vc->peer) {
468 queue = vc->peer->send_queue;
469 } else {
470 queue = vc->vlan->send_queue;
471 }
472
473 qemu_net_queue_purge(queue, vc);
Mark McLoughlin8cad5512009-06-18 18:21:29 +0100474}
475
Mark McLoughlinf3b6c7f2009-04-29 12:15:26 +0100476void qemu_flush_queued_packets(VLANClientState *vc)
Mark McLoughline94667b2009-04-29 11:48:12 +0100477{
Mark McLoughlin9a6ecb32009-10-08 19:58:32 +0100478 NetQueue *queue;
Mark McLoughlind80b9fc2009-10-08 19:58:24 +0100479
Mark McLoughlin893379e2009-10-27 18:16:36 +0000480 vc->receive_disabled = 0;
481
Mark McLoughlin9a6ecb32009-10-08 19:58:32 +0100482 if (vc->vlan) {
483 queue = vc->vlan->send_queue;
484 } else {
485 queue = vc->send_queue;
486 }
487
488 qemu_net_queue_flush(queue);
Mark McLoughline94667b2009-04-29 11:48:12 +0100489}
490
Mark McLoughlinca77d172009-10-22 17:43:41 +0100491static ssize_t qemu_send_packet_async_with_flags(VLANClientState *sender,
492 unsigned flags,
493 const uint8_t *buf, int size,
494 NetPacketSent *sent_cb)
aliguori764a4d12009-04-21 19:56:41 +0000495{
Mark McLoughlin9a6ecb32009-10-08 19:58:32 +0100496 NetQueue *queue;
Mark McLoughline94667b2009-04-29 11:48:12 +0100497
Mark McLoughlinf3b6c7f2009-04-29 12:15:26 +0100498#ifdef DEBUG_NET
Mark McLoughlind80b9fc2009-10-08 19:58:24 +0100499 printf("qemu_send_packet_async:\n");
Mark McLoughlinf3b6c7f2009-04-29 12:15:26 +0100500 hex_dump(stdout, buf, size);
501#endif
502
Mark McLoughlin9a6ecb32009-10-08 19:58:32 +0100503 if (sender->link_down || (!sender->peer && !sender->vlan)) {
504 return size;
505 }
506
507 if (sender->peer) {
508 queue = sender->peer->send_queue;
509 } else {
510 queue = sender->vlan->send_queue;
511 }
512
Mark McLoughlinca77d172009-10-22 17:43:41 +0100513 return qemu_net_queue_send(queue, sender, flags, buf, size, sent_cb);
514}
515
516ssize_t qemu_send_packet_async(VLANClientState *sender,
517 const uint8_t *buf, int size,
518 NetPacketSent *sent_cb)
519{
520 return qemu_send_packet_async_with_flags(sender, QEMU_NET_PACKET_FLAG_NONE,
521 buf, size, sent_cb);
Mark McLoughlinf3b6c7f2009-04-29 12:15:26 +0100522}
523
524void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size)
525{
526 qemu_send_packet_async(vc, buf, size, NULL);
aliguori63a01ef2008-10-31 19:10:00 +0000527}
528
Mark McLoughlinca77d172009-10-22 17:43:41 +0100529ssize_t qemu_send_packet_raw(VLANClientState *vc, const uint8_t *buf, int size)
530{
531 return qemu_send_packet_async_with_flags(vc, QEMU_NET_PACKET_FLAG_RAW,
532 buf, size, NULL);
533}
534
aliguorifbe78f42008-12-17 19:13:11 +0000535static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov,
536 int iovcnt)
537{
538 uint8_t buffer[4096];
Benjamin Poirierce053662011-02-23 19:57:21 -0500539 size_t offset;
aliguorifbe78f42008-12-17 19:13:11 +0000540
Benjamin Poirierce053662011-02-23 19:57:21 -0500541 offset = iov_to_buf(iov, iovcnt, buffer, 0, sizeof(buffer));
aliguorifbe78f42008-12-17 19:13:11 +0000542
Mark McLoughlin665a3b02009-11-25 18:49:30 +0000543 return vc->info->receive(vc, buffer, offset);
aliguorifbe78f42008-12-17 19:13:11 +0000544}
545
Mark McLoughlin9a6ecb32009-10-08 19:58:32 +0100546static ssize_t qemu_deliver_packet_iov(VLANClientState *sender,
Mark McLoughlinc0b8e492009-10-22 17:43:40 +0100547 unsigned flags,
Mark McLoughlin9a6ecb32009-10-08 19:58:32 +0100548 const struct iovec *iov,
549 int iovcnt,
550 void *opaque)
551{
552 VLANClientState *vc = opaque;
553
554 if (vc->link_down) {
Benjamin Poirierce053662011-02-23 19:57:21 -0500555 return iov_size(iov, iovcnt);
Mark McLoughlin9a6ecb32009-10-08 19:58:32 +0100556 }
557
Mark McLoughlin665a3b02009-11-25 18:49:30 +0000558 if (vc->info->receive_iov) {
559 return vc->info->receive_iov(vc, iov, iovcnt);
Mark McLoughlin9a6ecb32009-10-08 19:58:32 +0100560 } else {
561 return vc_sendv_compat(vc, iov, iovcnt);
562 }
563}
564
Mark McLoughlinf7105842009-10-08 19:58:31 +0100565static ssize_t qemu_vlan_deliver_packet_iov(VLANClientState *sender,
Mark McLoughlinc0b8e492009-10-22 17:43:40 +0100566 unsigned flags,
Mark McLoughlinf7105842009-10-08 19:58:31 +0100567 const struct iovec *iov,
568 int iovcnt,
569 void *opaque)
Mark McLoughline94667b2009-04-29 11:48:12 +0100570{
Mark McLoughlinf7105842009-10-08 19:58:31 +0100571 VLANState *vlan = opaque;
Mark McLoughline94667b2009-04-29 11:48:12 +0100572 VLANClientState *vc;
Mark McLoughlinf7105842009-10-08 19:58:31 +0100573 ssize_t ret = -1;
Mark McLoughline94667b2009-04-29 11:48:12 +0100574
Mark McLoughlinf7105842009-10-08 19:58:31 +0100575 QTAILQ_FOREACH(vc, &vlan->clients, next) {
Mark McLoughline94667b2009-04-29 11:48:12 +0100576 ssize_t len;
577
578 if (vc == sender) {
579 continue;
580 }
581
582 if (vc->link_down) {
Benjamin Poirierce053662011-02-23 19:57:21 -0500583 ret = iov_size(iov, iovcnt);
Mark McLoughline94667b2009-04-29 11:48:12 +0100584 continue;
585 }
586
Mark McLoughlinca77d172009-10-22 17:43:41 +0100587 assert(!(flags & QEMU_NET_PACKET_FLAG_RAW));
588
Mark McLoughlin665a3b02009-11-25 18:49:30 +0000589 if (vc->info->receive_iov) {
590 len = vc->info->receive_iov(vc, iov, iovcnt);
Mark McLoughline94667b2009-04-29 11:48:12 +0100591 } else {
592 len = vc_sendv_compat(vc, iov, iovcnt);
593 }
594
595 ret = (ret >= 0) ? ret : len;
596 }
597
Mark McLoughline94667b2009-04-29 11:48:12 +0100598 return ret;
599}
600
Mark McLoughlinf3b6c7f2009-04-29 12:15:26 +0100601ssize_t qemu_sendv_packet_async(VLANClientState *sender,
602 const struct iovec *iov, int iovcnt,
603 NetPacketSent *sent_cb)
aliguorifbe78f42008-12-17 19:13:11 +0000604{
Mark McLoughlin9a6ecb32009-10-08 19:58:32 +0100605 NetQueue *queue;
606
607 if (sender->link_down || (!sender->peer && !sender->vlan)) {
Benjamin Poirierce053662011-02-23 19:57:21 -0500608 return iov_size(iov, iovcnt);
aliguorifbe78f42008-12-17 19:13:11 +0000609 }
610
Mark McLoughlin9a6ecb32009-10-08 19:58:32 +0100611 if (sender->peer) {
612 queue = sender->peer->send_queue;
613 } else {
614 queue = sender->vlan->send_queue;
615 }
616
Mark McLoughlinc0b8e492009-10-22 17:43:40 +0100617 return qemu_net_queue_send_iov(queue, sender,
618 QEMU_NET_PACKET_FLAG_NONE,
619 iov, iovcnt, sent_cb);
aliguorifbe78f42008-12-17 19:13:11 +0000620}
621
Mark McLoughlinf3b6c7f2009-04-29 12:15:26 +0100622ssize_t
623qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov, int iovcnt)
624{
625 return qemu_sendv_packet_async(vc, iov, iovcnt, NULL);
626}
627
aliguori63a01ef2008-10-31 19:10:00 +0000628/* find or alloc a new VLAN */
Jan Kiszka1a609522009-06-24 14:42:31 +0200629VLANState *qemu_find_vlan(int id, int allocate)
aliguori63a01ef2008-10-31 19:10:00 +0000630{
Mark McLoughlin5610c3a2009-10-08 19:58:23 +0100631 VLANState *vlan;
632
633 QTAILQ_FOREACH(vlan, &vlans, next) {
634 if (vlan->id == id) {
aliguori63a01ef2008-10-31 19:10:00 +0000635 return vlan;
Mark McLoughlin5610c3a2009-10-08 19:58:23 +0100636 }
aliguori63a01ef2008-10-31 19:10:00 +0000637 }
Mark McLoughlin5610c3a2009-10-08 19:58:23 +0100638
Jan Kiszka1a609522009-06-24 14:42:31 +0200639 if (!allocate) {
640 return NULL;
641 }
Mark McLoughlin5610c3a2009-10-08 19:58:23 +0100642
Anthony Liguori7267c092011-08-20 22:09:37 -0500643 vlan = g_malloc0(sizeof(VLANState));
aliguori63a01ef2008-10-31 19:10:00 +0000644 vlan->id = id;
Mark McLoughlin5610c3a2009-10-08 19:58:23 +0100645 QTAILQ_INIT(&vlan->clients);
Mark McLoughlinf7105842009-10-08 19:58:31 +0100646
647 vlan->send_queue = qemu_new_net_queue(qemu_vlan_deliver_packet,
648 qemu_vlan_deliver_packet_iov,
649 vlan);
Mark McLoughlin5610c3a2009-10-08 19:58:23 +0100650
651 QTAILQ_INSERT_TAIL(&vlans, vlan, next);
652
aliguori63a01ef2008-10-31 19:10:00 +0000653 return vlan;
654}
655
Gerd Hoffmann2ef924b2009-10-21 15:25:24 +0200656VLANClientState *qemu_find_netdev(const char *id)
Mark McLoughlin5869c4d2009-10-08 19:58:29 +0100657{
658 VLANClientState *vc;
659
660 QTAILQ_FOREACH(vc, &non_vlan_clients, next) {
Markus Armbruster85dde9a2011-06-16 18:45:37 +0200661 if (vc->info->type == NET_CLIENT_TYPE_NIC)
662 continue;
Mark McLoughlin5869c4d2009-10-08 19:58:29 +0100663 if (!strcmp(vc->name, id)) {
664 return vc;
665 }
666 }
667
668 return NULL;
669}
670
aliguori76970792009-02-11 15:20:03 +0000671static int nic_get_free_idx(void)
672{
673 int index;
674
675 for (index = 0; index < MAX_NICS; index++)
676 if (!nd_table[index].used)
677 return index;
678 return -1;
679}
680
Markus Armbruster07caea32009-09-25 03:53:51 +0200681int qemu_show_nic_models(const char *arg, const char *const *models)
682{
683 int i;
684
685 if (!arg || strcmp(arg, "?"))
686 return 0;
687
688 fprintf(stderr, "qemu: Supported NIC models: ");
689 for (i = 0 ; models[i]; i++)
690 fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n');
691 return 1;
692}
693
aliguorid07f22c2009-01-13 19:03:57 +0000694void qemu_check_nic_model(NICInfo *nd, const char *model)
695{
696 const char *models[2];
697
698 models[0] = model;
699 models[1] = NULL;
700
Markus Armbruster07caea32009-09-25 03:53:51 +0200701 if (qemu_show_nic_models(nd->model, models))
702 exit(0);
703 if (qemu_find_nic_model(nd, models, model) < 0)
704 exit(1);
aliguorid07f22c2009-01-13 19:03:57 +0000705}
706
Markus Armbruster07caea32009-09-25 03:53:51 +0200707int qemu_find_nic_model(NICInfo *nd, const char * const *models,
708 const char *default_model)
aliguorid07f22c2009-01-13 19:03:57 +0000709{
Markus Armbruster07caea32009-09-25 03:53:51 +0200710 int i;
aliguorid07f22c2009-01-13 19:03:57 +0000711
712 if (!nd->model)
Anthony Liguori7267c092011-08-20 22:09:37 -0500713 nd->model = g_strdup(default_model);
aliguorid07f22c2009-01-13 19:03:57 +0000714
Markus Armbruster07caea32009-09-25 03:53:51 +0200715 for (i = 0 ; models[i]; i++) {
716 if (strcmp(nd->model, models[i]) == 0)
717 return i;
aliguorid07f22c2009-01-13 19:03:57 +0000718 }
719
Markus Armbruster6daf1942011-06-22 14:03:54 +0200720 error_report("Unsupported NIC model: %s", nd->model);
Markus Armbruster07caea32009-09-25 03:53:51 +0200721 return -1;
aliguorid07f22c2009-01-13 19:03:57 +0000722}
723
Mark McLoughlin5281d752009-10-22 17:49:07 +0100724int net_handle_fd_param(Monitor *mon, const char *param)
Mark McLoughlinc1d6eed2009-07-22 09:11:42 +0100725{
Jason Wangf7c31d62010-10-25 13:39:59 +0800726 int fd;
727
728 if (!qemu_isdigit(param[0]) && mon) {
Mark McLoughlinc1d6eed2009-07-22 09:11:42 +0100729
730 fd = monitor_get_fd(mon, param);
731 if (fd == -1) {
Markus Armbruster1ecda022010-02-18 17:25:24 +0100732 error_report("No file descriptor named %s found", param);
Mark McLoughlinc1d6eed2009-07-22 09:11:42 +0100733 return -1;
734 }
Mark McLoughlinc1d6eed2009-07-22 09:11:42 +0100735 } else {
Stefan Berger443916d2011-09-28 06:41:32 -0400736 fd = qemu_parse_fd(param);
Mark McLoughlinc1d6eed2009-07-22 09:11:42 +0100737 }
Jason Wangf7c31d62010-10-25 13:39:59 +0800738
739 return fd;
Mark McLoughlinc1d6eed2009-07-22 09:11:42 +0100740}
741
Mark McLoughlinf6b134a2009-10-08 19:58:27 +0100742static int net_init_nic(QemuOpts *opts,
743 Monitor *mon,
744 const char *name,
745 VLANState *vlan)
Mark McLoughlinf83c6e12009-10-06 12:17:06 +0100746{
747 int idx;
748 NICInfo *nd;
Mark McLoughlin5869c4d2009-10-08 19:58:29 +0100749 const char *netdev;
Mark McLoughlinf83c6e12009-10-06 12:17:06 +0100750
751 idx = nic_get_free_idx();
752 if (idx == -1 || nb_nics >= MAX_NICS) {
Markus Armbruster1ecda022010-02-18 17:25:24 +0100753 error_report("Too Many NICs");
Mark McLoughlinf83c6e12009-10-06 12:17:06 +0100754 return -1;
755 }
756
757 nd = &nd_table[idx];
758
759 memset(nd, 0, sizeof(*nd));
760
Mark McLoughlin5869c4d2009-10-08 19:58:29 +0100761 if ((netdev = qemu_opt_get(opts, "netdev"))) {
762 nd->netdev = qemu_find_netdev(netdev);
763 if (!nd->netdev) {
Markus Armbruster1ecda022010-02-18 17:25:24 +0100764 error_report("netdev '%s' not found", netdev);
Mark McLoughlin5869c4d2009-10-08 19:58:29 +0100765 return -1;
766 }
767 } else {
768 assert(vlan);
769 nd->vlan = vlan;
770 }
Mark McLoughlin6d952eb2009-10-08 19:58:21 +0100771 if (name) {
Anthony Liguori7267c092011-08-20 22:09:37 -0500772 nd->name = g_strdup(name);
Mark McLoughlin6d952eb2009-10-08 19:58:21 +0100773 }
Mark McLoughlinf83c6e12009-10-06 12:17:06 +0100774 if (qemu_opt_get(opts, "model")) {
Anthony Liguori7267c092011-08-20 22:09:37 -0500775 nd->model = g_strdup(qemu_opt_get(opts, "model"));
Mark McLoughlinf83c6e12009-10-06 12:17:06 +0100776 }
777 if (qemu_opt_get(opts, "addr")) {
Anthony Liguori7267c092011-08-20 22:09:37 -0500778 nd->devaddr = g_strdup(qemu_opt_get(opts, "addr"));
Mark McLoughlinf83c6e12009-10-06 12:17:06 +0100779 }
780
Mark McLoughlinf83c6e12009-10-06 12:17:06 +0100781 if (qemu_opt_get(opts, "macaddr") &&
Jan Kiszka6eed1852011-07-20 12:20:22 +0200782 net_parse_macaddr(nd->macaddr.a, qemu_opt_get(opts, "macaddr")) < 0) {
Markus Armbruster1ecda022010-02-18 17:25:24 +0100783 error_report("invalid syntax for ethernet address");
Mark McLoughlinf83c6e12009-10-06 12:17:06 +0100784 return -1;
785 }
Jan Kiszka6eed1852011-07-20 12:20:22 +0200786 qemu_macaddr_default_if_unset(&nd->macaddr);
Mark McLoughlinf83c6e12009-10-06 12:17:06 +0100787
Amit Shah75422b02010-02-25 17:24:43 +0530788 nd->nvectors = qemu_opt_get_number(opts, "vectors",
789 DEV_NVECTORS_UNSPECIFIED);
790 if (nd->nvectors != DEV_NVECTORS_UNSPECIFIED &&
Mark McLoughlinf83c6e12009-10-06 12:17:06 +0100791 (nd->nvectors < 0 || nd->nvectors > 0x7ffffff)) {
Markus Armbruster1ecda022010-02-18 17:25:24 +0100792 error_report("invalid # of vectors: %d", nd->nvectors);
Mark McLoughlinf83c6e12009-10-06 12:17:06 +0100793 return -1;
794 }
795
796 nd->used = 1;
Mark McLoughlinf83c6e12009-10-06 12:17:06 +0100797 nb_nics++;
798
799 return idx;
800}
801
802#define NET_COMMON_PARAMS_DESC \
803 { \
804 .name = "type", \
805 .type = QEMU_OPT_STRING, \
806 .help = "net client type (nic, tap etc.)", \
807 }, { \
808 .name = "vlan", \
809 .type = QEMU_OPT_NUMBER, \
810 .help = "vlan number", \
811 }, { \
812 .name = "name", \
813 .type = QEMU_OPT_STRING, \
814 .help = "identifier for monitor commands", \
815 }
816
Mark McLoughlin6d952eb2009-10-08 19:58:21 +0100817typedef int (*net_client_init_func)(QemuOpts *opts,
818 Monitor *mon,
Mark McLoughlinf6b134a2009-10-08 19:58:27 +0100819 const char *name,
820 VLANState *vlan);
Mark McLoughlinf83c6e12009-10-06 12:17:06 +0100821
822/* magic number, but compiler will warn if too small */
823#define NET_MAX_DESC 20
824
Blue Swirl238431a2010-02-21 16:01:30 +0000825static const struct {
Mark McLoughlinf83c6e12009-10-06 12:17:06 +0100826 const char *type;
827 net_client_init_func init;
828 QemuOptDesc desc[NET_MAX_DESC];
Jan Kiszka6f7b3b12011-07-20 12:20:20 +0200829} net_client_types[NET_CLIENT_TYPE_MAX] = {
830 [NET_CLIENT_TYPE_NONE] = {
Mark McLoughlinf83c6e12009-10-06 12:17:06 +0100831 .type = "none",
832 .desc = {
833 NET_COMMON_PARAMS_DESC,
834 { /* end of list */ }
835 },
Jan Kiszka6f7b3b12011-07-20 12:20:20 +0200836 },
837 [NET_CLIENT_TYPE_NIC] = {
Mark McLoughlinf83c6e12009-10-06 12:17:06 +0100838 .type = "nic",
839 .init = net_init_nic,
840 .desc = {
841 NET_COMMON_PARAMS_DESC,
842 {
Mark McLoughlin5869c4d2009-10-08 19:58:29 +0100843 .name = "netdev",
844 .type = QEMU_OPT_STRING,
845 .help = "id of -netdev to connect to",
846 },
847 {
Mark McLoughlinf83c6e12009-10-06 12:17:06 +0100848 .name = "macaddr",
849 .type = QEMU_OPT_STRING,
850 .help = "MAC address",
851 }, {
852 .name = "model",
853 .type = QEMU_OPT_STRING,
854 .help = "device model (e1000, rtl8139, virtio etc.)",
855 }, {
856 .name = "addr",
857 .type = QEMU_OPT_STRING,
858 .help = "PCI device address",
859 }, {
860 .name = "vectors",
861 .type = QEMU_OPT_NUMBER,
862 .help = "number of MSI-x vectors, 0 to disable MSI-X",
863 },
864 { /* end of list */ }
865 },
Jan Kiszka6f7b3b12011-07-20 12:20:20 +0200866 },
Mark McLoughlinec302ff2009-10-06 12:17:07 +0100867#ifdef CONFIG_SLIRP
Jan Kiszka6f7b3b12011-07-20 12:20:20 +0200868 [NET_CLIENT_TYPE_USER] = {
Mark McLoughlinec302ff2009-10-06 12:17:07 +0100869 .type = "user",
870 .init = net_init_slirp,
871 .desc = {
872 NET_COMMON_PARAMS_DESC,
873 {
874 .name = "hostname",
875 .type = QEMU_OPT_STRING,
876 .help = "client hostname reported by the builtin DHCP server",
877 }, {
878 .name = "restrict",
879 .type = QEMU_OPT_STRING,
880 .help = "isolate the guest from the host (y|yes|n|no)",
881 }, {
882 .name = "ip",
883 .type = QEMU_OPT_STRING,
884 .help = "legacy parameter, use net= instead",
885 }, {
886 .name = "net",
887 .type = QEMU_OPT_STRING,
888 .help = "IP address and optional netmask",
889 }, {
890 .name = "host",
891 .type = QEMU_OPT_STRING,
892 .help = "guest-visible address of the host",
893 }, {
894 .name = "tftp",
895 .type = QEMU_OPT_STRING,
896 .help = "root directory of the built-in TFTP server",
897 }, {
898 .name = "bootfile",
899 .type = QEMU_OPT_STRING,
900 .help = "BOOTP filename, for use with tftp=",
901 }, {
902 .name = "dhcpstart",
903 .type = QEMU_OPT_STRING,
904 .help = "the first of the 16 IPs the built-in DHCP server can assign",
905 }, {
906 .name = "dns",
907 .type = QEMU_OPT_STRING,
908 .help = "guest-visible address of the virtual nameserver",
909 }, {
910 .name = "smb",
911 .type = QEMU_OPT_STRING,
912 .help = "root directory of the built-in SMB server",
913 }, {
914 .name = "smbserver",
915 .type = QEMU_OPT_STRING,
916 .help = "IP address of the built-in SMB server",
917 }, {
918 .name = "hostfwd",
919 .type = QEMU_OPT_STRING,
920 .help = "guest port number to forward incoming TCP or UDP connections",
921 }, {
922 .name = "guestfwd",
923 .type = QEMU_OPT_STRING,
924 .help = "IP address and port to forward guest TCP connections",
925 },
926 { /* end of list */ }
927 },
Jan Kiszka6f7b3b12011-07-20 12:20:20 +0200928 },
Mark McLoughlinec302ff2009-10-06 12:17:07 +0100929#endif
Jan Kiszka6f7b3b12011-07-20 12:20:20 +0200930 [NET_CLIENT_TYPE_TAP] = {
Mark McLoughlin8a1c5232009-10-06 12:17:08 +0100931 .type = "tap",
Mark McLoughlina8ed73f2009-10-22 17:49:05 +0100932 .init = net_init_tap,
Mark McLoughlin8a1c5232009-10-06 12:17:08 +0100933 .desc = {
934 NET_COMMON_PARAMS_DESC,
935 {
936 .name = "ifname",
937 .type = QEMU_OPT_STRING,
938 .help = "interface name",
939 },
Mark McLoughlina8ed73f2009-10-22 17:49:05 +0100940#ifndef _WIN32
Mark McLoughlin8a1c5232009-10-06 12:17:08 +0100941 {
942 .name = "fd",
943 .type = QEMU_OPT_STRING,
944 .help = "file descriptor of an already opened tap",
945 }, {
Mark McLoughlin8a1c5232009-10-06 12:17:08 +0100946 .name = "script",
947 .type = QEMU_OPT_STRING,
948 .help = "script to initialize the interface",
949 }, {
950 .name = "downscript",
951 .type = QEMU_OPT_STRING,
952 .help = "script to shut down the interface",
Mark McLoughlin8a1c5232009-10-06 12:17:08 +0100953 }, {
954 .name = "sndbuf",
955 .type = QEMU_OPT_SIZE,
956 .help = "send buffer limit"
Mark McLoughlinbaf74c92009-10-22 17:43:37 +0100957 }, {
958 .name = "vnet_hdr",
959 .type = QEMU_OPT_BOOL,
960 .help = "enable the IFF_VNET_HDR flag on the tap interface"
Michael S. Tsirkin82b0d802010-03-17 13:08:24 +0200961 }, {
962 .name = "vhost",
963 .type = QEMU_OPT_BOOL,
964 .help = "enable vhost-net network accelerator",
965 }, {
966 .name = "vhostfd",
967 .type = QEMU_OPT_STRING,
968 .help = "file descriptor of an already opened vhost net device",
Jason Wang96c94b22011-02-25 16:11:27 +0800969 }, {
970 .name = "vhostforce",
971 .type = QEMU_OPT_BOOL,
972 .help = "force vhost on for non-MSIX virtio guests",
973 },
Mark McLoughlina8ed73f2009-10-22 17:49:05 +0100974#endif /* _WIN32 */
Mark McLoughlin8a1c5232009-10-06 12:17:08 +0100975 { /* end of list */ }
976 },
Jan Kiszka6f7b3b12011-07-20 12:20:20 +0200977 },
978 [NET_CLIENT_TYPE_SOCKET] = {
Mark McLoughlin88ce16c2009-10-06 12:17:09 +0100979 .type = "socket",
980 .init = net_init_socket,
981 .desc = {
982 NET_COMMON_PARAMS_DESC,
983 {
984 .name = "fd",
985 .type = QEMU_OPT_STRING,
986 .help = "file descriptor of an already opened socket",
987 }, {
988 .name = "listen",
989 .type = QEMU_OPT_STRING,
990 .help = "port number, and optional hostname, to listen on",
991 }, {
992 .name = "connect",
993 .type = QEMU_OPT_STRING,
994 .help = "port number, and optional hostname, to connect to",
995 }, {
996 .name = "mcast",
997 .type = QEMU_OPT_STRING,
998 .help = "UDP multicast address and port number",
Mike Ryan3a75e742010-12-01 11:16:47 -0800999 }, {
1000 .name = "localaddr",
1001 .type = QEMU_OPT_STRING,
1002 .help = "source address for multicast packets",
Mark McLoughlin88ce16c2009-10-06 12:17:09 +01001003 },
1004 { /* end of list */ }
1005 },
Jan Kiszka6f7b3b12011-07-20 12:20:20 +02001006 },
Mark McLoughlindd510582009-10-06 12:17:10 +01001007#ifdef CONFIG_VDE
Jan Kiszka6f7b3b12011-07-20 12:20:20 +02001008 [NET_CLIENT_TYPE_VDE] = {
Mark McLoughlindd510582009-10-06 12:17:10 +01001009 .type = "vde",
1010 .init = net_init_vde,
1011 .desc = {
1012 NET_COMMON_PARAMS_DESC,
1013 {
1014 .name = "sock",
1015 .type = QEMU_OPT_STRING,
1016 .help = "socket path",
1017 }, {
1018 .name = "port",
1019 .type = QEMU_OPT_NUMBER,
1020 .help = "port number",
1021 }, {
1022 .name = "group",
1023 .type = QEMU_OPT_STRING,
1024 .help = "group owner of socket",
1025 }, {
1026 .name = "mode",
1027 .type = QEMU_OPT_NUMBER,
1028 .help = "permissions for socket",
1029 },
1030 { /* end of list */ }
1031 },
Jan Kiszka6f7b3b12011-07-20 12:20:20 +02001032 },
Mark McLoughlindd510582009-10-06 12:17:10 +01001033#endif
Jan Kiszka6f7b3b12011-07-20 12:20:20 +02001034 [NET_CLIENT_TYPE_DUMP] = {
Mark McLoughlined2955c2009-10-06 12:17:11 +01001035 .type = "dump",
1036 .init = net_init_dump,
1037 .desc = {
1038 NET_COMMON_PARAMS_DESC,
1039 {
1040 .name = "len",
1041 .type = QEMU_OPT_SIZE,
1042 .help = "per-packet size limit (64k default)",
1043 }, {
1044 .name = "file",
1045 .type = QEMU_OPT_STRING,
1046 .help = "dump file path (default is qemu-vlan0.pcap)",
1047 },
1048 { /* end of list */ }
1049 },
Mark McLoughlinf83c6e12009-10-06 12:17:06 +01001050 },
Mark McLoughlinf83c6e12009-10-06 12:17:06 +01001051};
1052
Mark McLoughlinf6b134a2009-10-08 19:58:27 +01001053int net_client_init(Monitor *mon, QemuOpts *opts, int is_netdev)
Mark McLoughlinf83c6e12009-10-06 12:17:06 +01001054{
Mark McLoughlin6d952eb2009-10-08 19:58:21 +01001055 const char *name;
Mark McLoughlinf83c6e12009-10-06 12:17:06 +01001056 const char *type;
1057 int i;
1058
1059 type = qemu_opt_get(opts, "type");
Markus Armbruster5294e2c2010-03-25 17:22:38 +01001060 if (!type) {
1061 qerror_report(QERR_MISSING_PARAMETER, "type");
1062 return -1;
1063 }
Mark McLoughlinf83c6e12009-10-06 12:17:06 +01001064
Markus Armbruster5294e2c2010-03-25 17:22:38 +01001065 if (is_netdev) {
Mark McLoughlinf6b134a2009-10-08 19:58:27 +01001066 if (strcmp(type, "tap") != 0 &&
1067#ifdef CONFIG_SLIRP
1068 strcmp(type, "user") != 0 &&
1069#endif
1070#ifdef CONFIG_VDE
1071 strcmp(type, "vde") != 0 &&
1072#endif
1073 strcmp(type, "socket") != 0) {
Markus Armbruster5294e2c2010-03-25 17:22:38 +01001074 qerror_report(QERR_INVALID_PARAMETER_VALUE, "type",
1075 "a netdev backend type");
Mark McLoughlinf6b134a2009-10-08 19:58:27 +01001076 return -1;
1077 }
1078
1079 if (qemu_opt_get(opts, "vlan")) {
Markus Armbruster5294e2c2010-03-25 17:22:38 +01001080 qerror_report(QERR_INVALID_PARAMETER, "vlan");
Mark McLoughlinf6b134a2009-10-08 19:58:27 +01001081 return -1;
1082 }
1083 if (qemu_opt_get(opts, "name")) {
Markus Armbruster5294e2c2010-03-25 17:22:38 +01001084 qerror_report(QERR_INVALID_PARAMETER, "name");
Mark McLoughlinf6b134a2009-10-08 19:58:27 +01001085 return -1;
1086 }
1087 if (!qemu_opts_id(opts)) {
Markus Armbruster5294e2c2010-03-25 17:22:38 +01001088 qerror_report(QERR_MISSING_PARAMETER, "id");
Mark McLoughlinf6b134a2009-10-08 19:58:27 +01001089 return -1;
1090 }
1091 }
1092
Mark McLoughlin6d952eb2009-10-08 19:58:21 +01001093 name = qemu_opts_id(opts);
1094 if (!name) {
1095 name = qemu_opt_get(opts, "name");
1096 }
1097
Jan Kiszka6f7b3b12011-07-20 12:20:20 +02001098 for (i = 0; i < NET_CLIENT_TYPE_MAX; i++) {
1099 if (net_client_types[i].type != NULL &&
1100 !strcmp(net_client_types[i].type, type)) {
Mark McLoughlinf6b134a2009-10-08 19:58:27 +01001101 VLANState *vlan = NULL;
Amit Shah50e32ea2010-06-08 21:13:58 +05301102 int ret;
Mark McLoughlinf6b134a2009-10-08 19:58:27 +01001103
Mark McLoughlinf83c6e12009-10-06 12:17:06 +01001104 if (qemu_opts_validate(opts, &net_client_types[i].desc[0]) == -1) {
1105 return -1;
1106 }
1107
Mark McLoughlin5869c4d2009-10-08 19:58:29 +01001108 /* Do not add to a vlan if it's a -netdev or a nic with a
1109 * netdev= parameter. */
1110 if (!(is_netdev ||
1111 (strcmp(type, "nic") == 0 && qemu_opt_get(opts, "netdev")))) {
Mark McLoughlinf6b134a2009-10-08 19:58:27 +01001112 vlan = qemu_find_vlan(qemu_opt_get_number(opts, "vlan", 0), 1);
1113 }
1114
Amit Shah03c71552010-06-15 13:30:39 +05301115 ret = 0;
Mark McLoughlinf83c6e12009-10-06 12:17:06 +01001116 if (net_client_types[i].init) {
Amit Shah50e32ea2010-06-08 21:13:58 +05301117 ret = net_client_types[i].init(opts, mon, name, vlan);
1118 if (ret < 0) {
Markus Armbruster5294e2c2010-03-25 17:22:38 +01001119 /* TODO push error reporting into init() methods */
1120 qerror_report(QERR_DEVICE_INIT_FAILED, type);
1121 return -1;
1122 }
Mark McLoughlinf83c6e12009-10-06 12:17:06 +01001123 }
Amit Shah50e32ea2010-06-08 21:13:58 +05301124 return ret;
Mark McLoughlinf83c6e12009-10-06 12:17:06 +01001125 }
1126 }
1127
Markus Armbruster5294e2c2010-03-25 17:22:38 +01001128 qerror_report(QERR_INVALID_PARAMETER_VALUE, "type",
1129 "a network client type");
Mark McLoughlinf83c6e12009-10-06 12:17:06 +01001130 return -1;
1131}
1132
aliguori6f338c32009-02-11 15:21:54 +00001133static int net_host_check_device(const char *device)
1134{
1135 int i;
aliguoribb9ea792009-04-21 19:56:28 +00001136 const char *valid_param_list[] = { "tap", "socket", "dump"
aliguori6f338c32009-02-11 15:21:54 +00001137#ifdef CONFIG_SLIRP
1138 ,"user"
1139#endif
1140#ifdef CONFIG_VDE
1141 ,"vde"
1142#endif
1143 };
1144 for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) {
1145 if (!strncmp(valid_param_list[i], device,
1146 strlen(valid_param_list[i])))
1147 return 1;
1148 }
1149
1150 return 0;
1151}
1152
Luiz Capitulinof18c16d2009-08-28 15:27:14 -03001153void net_host_device_add(Monitor *mon, const QDict *qdict)
aliguori6f338c32009-02-11 15:21:54 +00001154{
Luiz Capitulinof18c16d2009-08-28 15:27:14 -03001155 const char *device = qdict_get_str(qdict, "device");
Mark McLoughlin7f1c9d22009-10-06 12:17:13 +01001156 const char *opts_str = qdict_get_try_str(qdict, "opts");
1157 QemuOpts *opts;
Luiz Capitulinof18c16d2009-08-28 15:27:14 -03001158
aliguori6f338c32009-02-11 15:21:54 +00001159 if (!net_host_check_device(device)) {
aliguori376253e2009-03-05 23:01:23 +00001160 monitor_printf(mon, "invalid host network device %s\n", device);
aliguori6f338c32009-02-11 15:21:54 +00001161 return;
1162 }
Mark McLoughlin7f1c9d22009-10-06 12:17:13 +01001163
Gerd Hoffmann3329f072010-08-20 13:52:01 +02001164 opts = qemu_opts_parse(qemu_find_opts("net"), opts_str ? opts_str : "", 0);
Mark McLoughlin7f1c9d22009-10-06 12:17:13 +01001165 if (!opts) {
Mark McLoughlin7f1c9d22009-10-06 12:17:13 +01001166 return;
1167 }
1168
1169 qemu_opt_set(opts, "type", device);
1170
Mark McLoughlinf6b134a2009-10-08 19:58:27 +01001171 if (net_client_init(mon, opts, 0) < 0) {
aliguori5c8be672009-04-21 19:56:32 +00001172 monitor_printf(mon, "adding host network device %s failed\n", device);
1173 }
aliguori6f338c32009-02-11 15:21:54 +00001174}
1175
Luiz Capitulinof18c16d2009-08-28 15:27:14 -03001176void net_host_device_remove(Monitor *mon, const QDict *qdict)
aliguori6f338c32009-02-11 15:21:54 +00001177{
aliguori6f338c32009-02-11 15:21:54 +00001178 VLANClientState *vc;
Luiz Capitulinof18c16d2009-08-28 15:27:14 -03001179 int vlan_id = qdict_get_int(qdict, "vlan_id");
1180 const char *device = qdict_get_str(qdict, "device");
aliguori6f338c32009-02-11 15:21:54 +00001181
Jan Kiszka1a609522009-06-24 14:42:31 +02001182 vc = qemu_find_vlan_client_by_name(mon, vlan_id, device);
aliguori6f338c32009-02-11 15:21:54 +00001183 if (!vc) {
aliguori6f338c32009-02-11 15:21:54 +00001184 return;
1185 }
aliguorie8f1f9d2009-04-21 19:56:08 +00001186 if (!net_host_check_device(vc->model)) {
1187 monitor_printf(mon, "invalid host network device %s\n", device);
1188 return;
1189 }
aliguori6f338c32009-02-11 15:21:54 +00001190 qemu_del_vlan_client(vc);
1191}
1192
Markus Armbrusterae82d322010-03-25 17:22:40 +01001193int do_netdev_add(Monitor *mon, const QDict *qdict, QObject **ret_data)
1194{
1195 QemuOpts *opts;
1196 int res;
1197
Gerd Hoffmann3329f072010-08-20 13:52:01 +02001198 opts = qemu_opts_from_qdict(qemu_find_opts("netdev"), qdict);
Markus Armbrusterae82d322010-03-25 17:22:40 +01001199 if (!opts) {
1200 return -1;
1201 }
1202
1203 res = net_client_init(mon, opts, 1);
Yoshiaki Tamura410cbaf2010-06-21 10:41:36 +09001204 if (res < 0) {
1205 qemu_opts_del(opts);
1206 }
1207
Markus Armbrusterae82d322010-03-25 17:22:40 +01001208 return res;
1209}
1210
Markus Armbrusterae82d322010-03-25 17:22:40 +01001211int do_netdev_del(Monitor *mon, const QDict *qdict, QObject **ret_data)
1212{
1213 const char *id = qdict_get_str(qdict, "id");
1214 VLANClientState *vc;
1215
1216 vc = qemu_find_netdev(id);
Markus Armbruster85dde9a2011-06-16 18:45:37 +02001217 if (!vc) {
Markus Armbrusterae82d322010-03-25 17:22:40 +01001218 qerror_report(QERR_DEVICE_NOT_FOUND, id);
1219 return -1;
1220 }
Markus Armbrusterae82d322010-03-25 17:22:40 +01001221 qemu_del_vlan_client(vc);
Gerd Hoffmann3329f072010-08-20 13:52:01 +02001222 qemu_opts_del(qemu_opts_find(qemu_find_opts("netdev"), id));
Markus Armbrusterae82d322010-03-25 17:22:40 +01001223 return 0;
1224}
1225
Jan Kiszka44e798d2011-07-20 12:20:21 +02001226static void print_net_client(Monitor *mon, VLANClientState *vc)
1227{
1228 monitor_printf(mon, "%s: type=%s,%s\n", vc->name,
1229 net_client_types[vc->info->type].type, vc->info_str);
1230}
1231
aliguori376253e2009-03-05 23:01:23 +00001232void do_info_network(Monitor *mon)
aliguori63a01ef2008-10-31 19:10:00 +00001233{
1234 VLANState *vlan;
Jan Kiszka19061e62011-07-20 12:20:19 +02001235 VLANClientState *vc, *peer;
1236 net_client_type type;
aliguori63a01ef2008-10-31 19:10:00 +00001237
Mark McLoughlin5610c3a2009-10-08 19:58:23 +01001238 QTAILQ_FOREACH(vlan, &vlans, next) {
aliguori376253e2009-03-05 23:01:23 +00001239 monitor_printf(mon, "VLAN %d devices:\n", vlan->id);
Mark McLoughlin5610c3a2009-10-08 19:58:23 +01001240
1241 QTAILQ_FOREACH(vc, &vlan->clients, next) {
Jan Kiszka44e798d2011-07-20 12:20:21 +02001242 monitor_printf(mon, " ");
1243 print_net_client(mon, vc);
Mark McLoughlin5610c3a2009-10-08 19:58:23 +01001244 }
aliguori63a01ef2008-10-31 19:10:00 +00001245 }
Markus Armbrustera0104e02010-02-11 14:45:01 +01001246 monitor_printf(mon, "Devices not on any VLAN:\n");
1247 QTAILQ_FOREACH(vc, &non_vlan_clients, next) {
Jan Kiszka19061e62011-07-20 12:20:19 +02001248 peer = vc->peer;
1249 type = vc->info->type;
1250 if (!peer || type == NET_CLIENT_TYPE_NIC) {
Jan Kiszka44e798d2011-07-20 12:20:21 +02001251 monitor_printf(mon, " ");
1252 print_net_client(mon, vc);
Jan Kiszka19061e62011-07-20 12:20:19 +02001253 } /* else it's a netdev connected to a NIC, printed with the NIC */
1254 if (peer && type == NET_CLIENT_TYPE_NIC) {
Jan Kiszka44e798d2011-07-20 12:20:21 +02001255 monitor_printf(mon, " \\ ");
1256 print_net_client(mon, peer);
Markus Armbrustera0104e02010-02-11 14:45:01 +01001257 }
Markus Armbrustera0104e02010-02-11 14:45:01 +01001258 }
aliguori63a01ef2008-10-31 19:10:00 +00001259}
1260
Markus Armbruster5369e3c2010-03-26 09:07:11 +01001261int do_set_link(Monitor *mon, const QDict *qdict, QObject **ret_data)
aliguori436e5e52009-01-08 19:44:06 +00001262{
1263 VLANState *vlan;
1264 VLANClientState *vc = NULL;
Luiz Capitulinof18c16d2009-08-28 15:27:14 -03001265 const char *name = qdict_get_str(qdict, "name");
Markus Armbrusterc9b26a42010-03-26 09:07:10 +01001266 int up = qdict_get_bool(qdict, "up");
aliguori436e5e52009-01-08 19:44:06 +00001267
Mark McLoughlin5610c3a2009-10-08 19:58:23 +01001268 QTAILQ_FOREACH(vlan, &vlans, next) {
1269 QTAILQ_FOREACH(vc, &vlan->clients, next) {
1270 if (strcmp(vc->name, name) == 0) {
edgar_igldd5de372009-01-09 00:48:28 +00001271 goto done;
Mark McLoughlin5610c3a2009-10-08 19:58:23 +01001272 }
1273 }
1274 }
Markus Armbruster85dde9a2011-06-16 18:45:37 +02001275 QTAILQ_FOREACH(vc, &non_vlan_clients, next) {
1276 if (!strcmp(vc->name, name)) {
1277 goto done;
1278 }
1279 }
edgar_igldd5de372009-01-09 00:48:28 +00001280done:
aliguori436e5e52009-01-08 19:44:06 +00001281
1282 if (!vc) {
Markus Armbruster5369e3c2010-03-26 09:07:11 +01001283 qerror_report(QERR_DEVICE_NOT_FOUND, name);
1284 return -1;
aliguori436e5e52009-01-08 19:44:06 +00001285 }
1286
Markus Armbrusterc9b26a42010-03-26 09:07:10 +01001287 vc->link_down = !up;
aliguori436e5e52009-01-08 19:44:06 +00001288
Mark McLoughlin665a3b02009-11-25 18:49:30 +00001289 if (vc->info->link_status_changed) {
1290 vc->info->link_status_changed(vc);
1291 }
Michael S. Tsirkinab1cbe12011-02-09 18:45:04 +02001292
1293 /* Notify peer. Don't update peer link status: this makes it possible to
1294 * disconnect from host network without notifying the guest.
1295 * FIXME: is disconnected link status change operation useful?
1296 *
1297 * Current behaviour is compatible with qemu vlans where there could be
1298 * multiple clients that can still communicate with each other in
1299 * disconnected mode. For now maintain this compatibility. */
1300 if (vc->peer && vc->peer->info->link_status_changed) {
1301 vc->peer->info->link_status_changed(vc->peer);
1302 }
Markus Armbruster5369e3c2010-03-26 09:07:11 +01001303 return 0;
aliguori436e5e52009-01-08 19:44:06 +00001304}
1305
aliguori63a01ef2008-10-31 19:10:00 +00001306void net_cleanup(void)
1307{
1308 VLANState *vlan;
Mark McLoughlin577c4af2009-10-08 19:58:28 +01001309 VLANClientState *vc, *next_vc;
aliguori63a01ef2008-10-31 19:10:00 +00001310
Mark McLoughlin5610c3a2009-10-08 19:58:23 +01001311 QTAILQ_FOREACH(vlan, &vlans, next) {
Mark McLoughlin5610c3a2009-10-08 19:58:23 +01001312 QTAILQ_FOREACH_SAFE(vc, &vlan->clients, next, next_vc) {
aliguorib946a152009-04-17 17:11:08 +00001313 qemu_del_vlan_client(vc);
aliguori63a01ef2008-10-31 19:10:00 +00001314 }
1315 }
Mark McLoughlin577c4af2009-10-08 19:58:28 +01001316
1317 QTAILQ_FOREACH_SAFE(vc, &non_vlan_clients, next, next_vc) {
1318 qemu_del_vlan_client(vc);
1319 }
aliguori63a01ef2008-10-31 19:10:00 +00001320}
1321
Markus Armbruster668680f2010-02-11 14:44:58 +01001322void net_check_clients(void)
aliguori63a01ef2008-10-31 19:10:00 +00001323{
1324 VLANState *vlan;
Markus Armbruster62112d12010-02-11 14:44:59 +01001325 VLANClientState *vc;
Peter Maydell48e2faf2011-05-20 16:50:01 +01001326 int i;
aliguori63a01ef2008-10-31 19:10:00 +00001327
Peter Maydell641f6ea2011-05-20 16:50:00 +01001328 /* Don't warn about the default network setup that you get if
1329 * no command line -net or -netdev options are specified. There
1330 * are two cases that we would otherwise complain about:
1331 * (1) board doesn't support a NIC but the implicit "-net nic"
1332 * requested one
1333 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
1334 * sets up a nic that isn't connected to anything.
1335 */
1336 if (default_net) {
1337 return;
1338 }
1339
Mark McLoughlin5610c3a2009-10-08 19:58:23 +01001340 QTAILQ_FOREACH(vlan, &vlans, next) {
Tristan Gingoldac60cc12011-03-15 14:20:54 +01001341 int has_nic = 0, has_host_dev = 0;
1342
Markus Armbruster62112d12010-02-11 14:44:59 +01001343 QTAILQ_FOREACH(vc, &vlan->clients, next) {
1344 switch (vc->info->type) {
1345 case NET_CLIENT_TYPE_NIC:
1346 has_nic = 1;
1347 break;
Jan Kiszka6f7b3b12011-07-20 12:20:20 +02001348 case NET_CLIENT_TYPE_USER:
Markus Armbruster62112d12010-02-11 14:44:59 +01001349 case NET_CLIENT_TYPE_TAP:
1350 case NET_CLIENT_TYPE_SOCKET:
1351 case NET_CLIENT_TYPE_VDE:
1352 has_host_dev = 1;
1353 break;
1354 default: ;
1355 }
1356 }
1357 if (has_host_dev && !has_nic)
aliguori63a01ef2008-10-31 19:10:00 +00001358 fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
Markus Armbruster62112d12010-02-11 14:44:59 +01001359 if (has_nic && !has_host_dev)
aliguori63a01ef2008-10-31 19:10:00 +00001360 fprintf(stderr,
1361 "Warning: vlan %d is not connected to host network\n",
1362 vlan->id);
1363 }
Markus Armbrusterefe32fd2010-02-11 14:45:00 +01001364 QTAILQ_FOREACH(vc, &non_vlan_clients, next) {
1365 if (!vc->peer) {
1366 fprintf(stderr, "Warning: %s %s has no peer\n",
1367 vc->info->type == NET_CLIENT_TYPE_NIC ? "nic" : "netdev",
1368 vc->name);
1369 }
1370 }
Peter Maydell48e2faf2011-05-20 16:50:01 +01001371
1372 /* Check that all NICs requested via -net nic actually got created.
1373 * NICs created via -device don't need to be checked here because
1374 * they are always instantiated.
1375 */
1376 for (i = 0; i < MAX_NICS; i++) {
1377 NICInfo *nd = &nd_table[i];
1378 if (nd->used && !nd->instantiated) {
1379 fprintf(stderr, "Warning: requested NIC (%s, model %s) "
1380 "was not created (not supported by this machine?)\n",
1381 nd->name ? nd->name : "anonymous",
1382 nd->model ? nd->model : "unspecified");
1383 }
1384 }
aliguori63a01ef2008-10-31 19:10:00 +00001385}
Mark McLoughlindc1c9fe2009-10-06 12:17:16 +01001386
1387static int net_init_client(QemuOpts *opts, void *dummy)
1388{
Mark McLoughlinc1671a02009-10-12 09:52:00 +01001389 if (net_client_init(NULL, opts, 0) < 0)
1390 return -1;
1391 return 0;
Mark McLoughlinf6b134a2009-10-08 19:58:27 +01001392}
1393
1394static int net_init_netdev(QemuOpts *opts, void *dummy)
1395{
1396 return net_client_init(NULL, opts, 1);
Mark McLoughlindc1c9fe2009-10-06 12:17:16 +01001397}
1398
1399int net_init_clients(void)
1400{
Gerd Hoffmann3329f072010-08-20 13:52:01 +02001401 QemuOptsList *net = qemu_find_opts("net");
1402
Gerd Hoffmanncb4522c2009-12-08 13:11:47 +01001403 if (default_net) {
Mark McLoughlindc1c9fe2009-10-06 12:17:16 +01001404 /* if no clients, we use a default config */
Gerd Hoffmann3329f072010-08-20 13:52:01 +02001405 qemu_opts_set(net, NULL, "type", "nic");
Mark McLoughlindc1c9fe2009-10-06 12:17:16 +01001406#ifdef CONFIG_SLIRP
Gerd Hoffmann3329f072010-08-20 13:52:01 +02001407 qemu_opts_set(net, NULL, "type", "user");
Mark McLoughlindc1c9fe2009-10-06 12:17:16 +01001408#endif
1409 }
1410
Mark McLoughlin5610c3a2009-10-08 19:58:23 +01001411 QTAILQ_INIT(&vlans);
Mark McLoughlin577c4af2009-10-08 19:58:28 +01001412 QTAILQ_INIT(&non_vlan_clients);
Mark McLoughlin5610c3a2009-10-08 19:58:23 +01001413
Gerd Hoffmann3329f072010-08-20 13:52:01 +02001414 if (qemu_opts_foreach(qemu_find_opts("netdev"), net_init_netdev, NULL, 1) == -1)
Mark McLoughlinf6b134a2009-10-08 19:58:27 +01001415 return -1;
1416
Gerd Hoffmann3329f072010-08-20 13:52:01 +02001417 if (qemu_opts_foreach(net, net_init_client, NULL, 1) == -1) {
Mark McLoughlindc1c9fe2009-10-06 12:17:16 +01001418 return -1;
1419 }
1420
Mark McLoughlindc1c9fe2009-10-06 12:17:16 +01001421 return 0;
1422}
1423
Mark McLoughlin7f161aa2009-10-08 19:58:25 +01001424int net_client_parse(QemuOptsList *opts_list, const char *optarg)
Mark McLoughlindc1c9fe2009-10-06 12:17:16 +01001425{
Juan Quintelaa3a766e2009-10-07 23:44:15 +02001426#if defined(CONFIG_SLIRP)
Mark McLoughlin68ac40d2009-11-25 18:48:54 +00001427 int ret;
1428 if (net_slirp_parse_legacy(opts_list, optarg, &ret)) {
Mark McLoughlindc1c9fe2009-10-06 12:17:16 +01001429 return ret;
1430 }
Juan Quintelaa3a766e2009-10-07 23:44:15 +02001431#endif
Mark McLoughlin68ac40d2009-11-25 18:48:54 +00001432
Markus Armbruster8212c642010-02-10 19:52:18 +01001433 if (!qemu_opts_parse(opts_list, optarg, 1)) {
Mark McLoughlindc1c9fe2009-10-06 12:17:16 +01001434 return -1;
1435 }
1436
Gerd Hoffmanncb4522c2009-12-08 13:11:47 +01001437 default_net = 0;
Mark McLoughlindc1c9fe2009-10-06 12:17:16 +01001438 return 0;
1439}