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Commit | Line | Data |
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63a01ef8 AL |
1 | /* |
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 | */ | |
1df49e04 | 24 | #include "net.h" |
63a01ef8 | 25 | |
d40cdb10 BS |
26 | #include "config-host.h" |
27 | ||
a8ed73f7 | 28 | #include "net/tap.h" |
42281ac9 | 29 | #include "net/socket.h" |
1abecf77 | 30 | #include "net/dump.h" |
68ac40d2 | 31 | #include "net/slirp.h" |
5c361cc3 | 32 | #include "net/vde.h" |
f1d078c3 | 33 | #include "net/util.h" |
511d2b14 | 34 | #include "monitor.h" |
1df49e04 | 35 | #include "qemu-common.h" |
511d2b14 | 36 | #include "qemu_socket.h" |
4b37156c | 37 | #include "qmp-commands.h" |
75422b0d | 38 | #include "hw/qdev.h" |
ce053661 | 39 | #include "iov.h" |
511d2b14 | 40 | |
2944e4ec SW |
41 | /* Net bridge is currently not supported for W32. */ |
42 | #if !defined(_WIN32) | |
43 | # define CONFIG_NET_BRIDGE | |
44 | #endif | |
45 | ||
5610c3aa | 46 | static QTAILQ_HEAD(, VLANState) vlans; |
577c4af9 | 47 | static QTAILQ_HEAD(, VLANClientState) non_vlan_clients; |
63a01ef8 | 48 | |
cb4522cc GH |
49 | int default_net = 1; |
50 | ||
63a01ef8 AL |
51 | /***********************************************************/ |
52 | /* network device redirectors */ | |
53 | ||
68ac40d2 | 54 | #if defined(DEBUG_NET) |
63a01ef8 AL |
55 | static void hex_dump(FILE *f, const uint8_t *buf, int size) |
56 | { | |
57 | int len, i, j, c; | |
58 | ||
59 | for(i=0;i<size;i+=16) { | |
60 | len = size - i; | |
61 | if (len > 16) | |
62 | len = 16; | |
63 | fprintf(f, "%08x ", i); | |
64 | for(j=0;j<16;j++) { | |
65 | if (j < len) | |
66 | fprintf(f, " %02x", buf[i+j]); | |
67 | else | |
68 | fprintf(f, " "); | |
69 | } | |
70 | fprintf(f, " "); | |
71 | for(j=0;j<len;j++) { | |
72 | c = buf[i+j]; | |
73 | if (c < ' ' || c > '~') | |
74 | c = '.'; | |
75 | fprintf(f, "%c", c); | |
76 | } | |
77 | fprintf(f, "\n"); | |
78 | } | |
79 | } | |
80 | #endif | |
81 | ||
63a01ef8 AL |
82 | static int get_str_sep(char *buf, int buf_size, const char **pp, int sep) |
83 | { | |
84 | const char *p, *p1; | |
85 | int len; | |
86 | p = *pp; | |
87 | p1 = strchr(p, sep); | |
88 | if (!p1) | |
89 | return -1; | |
90 | len = p1 - p; | |
91 | p1++; | |
92 | if (buf_size > 0) { | |
93 | if (len > buf_size - 1) | |
94 | len = buf_size - 1; | |
95 | memcpy(buf, p, len); | |
96 | buf[len] = '\0'; | |
97 | } | |
98 | *pp = p1; | |
99 | return 0; | |
100 | } | |
101 | ||
63a01ef8 AL |
102 | int parse_host_port(struct sockaddr_in *saddr, const char *str) |
103 | { | |
104 | char buf[512]; | |
105 | struct hostent *he; | |
106 | const char *p, *r; | |
107 | int port; | |
108 | ||
109 | p = str; | |
110 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) | |
111 | return -1; | |
112 | saddr->sin_family = AF_INET; | |
113 | if (buf[0] == '\0') { | |
114 | saddr->sin_addr.s_addr = 0; | |
115 | } else { | |
cd390083 | 116 | if (qemu_isdigit(buf[0])) { |
63a01ef8 AL |
117 | if (!inet_aton(buf, &saddr->sin_addr)) |
118 | return -1; | |
119 | } else { | |
120 | if ((he = gethostbyname(buf)) == NULL) | |
121 | return - 1; | |
122 | saddr->sin_addr = *(struct in_addr *)he->h_addr; | |
123 | } | |
124 | } | |
125 | port = strtol(p, (char **)&r, 0); | |
126 | if (r == p) | |
127 | return -1; | |
128 | saddr->sin_port = htons(port); | |
129 | return 0; | |
130 | } | |
131 | ||
7cb7434b AL |
132 | void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]) |
133 | { | |
134 | snprintf(vc->info_str, sizeof(vc->info_str), | |
4dda4063 AL |
135 | "model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x", |
136 | vc->model, | |
7cb7434b AL |
137 | macaddr[0], macaddr[1], macaddr[2], |
138 | macaddr[3], macaddr[4], macaddr[5]); | |
139 | } | |
140 | ||
76d32cba GH |
141 | void qemu_macaddr_default_if_unset(MACAddr *macaddr) |
142 | { | |
143 | static int index = 0; | |
144 | static const MACAddr zero = { .a = { 0,0,0,0,0,0 } }; | |
145 | ||
146 | if (memcmp(macaddr, &zero, sizeof(zero)) != 0) | |
147 | return; | |
148 | macaddr->a[0] = 0x52; | |
149 | macaddr->a[1] = 0x54; | |
150 | macaddr->a[2] = 0x00; | |
151 | macaddr->a[3] = 0x12; | |
152 | macaddr->a[4] = 0x34; | |
153 | macaddr->a[5] = 0x56 + index++; | |
154 | } | |
155 | ||
676cff29 AL |
156 | static char *assign_name(VLANClientState *vc1, const char *model) |
157 | { | |
158 | VLANState *vlan; | |
53e51d85 | 159 | VLANClientState *vc; |
676cff29 AL |
160 | char buf[256]; |
161 | int id = 0; | |
162 | ||
5610c3aa | 163 | QTAILQ_FOREACH(vlan, &vlans, next) { |
5610c3aa MM |
164 | QTAILQ_FOREACH(vc, &vlan->clients, next) { |
165 | if (vc != vc1 && strcmp(vc->model, model) == 0) { | |
676cff29 | 166 | id++; |
5610c3aa MM |
167 | } |
168 | } | |
676cff29 AL |
169 | } |
170 | ||
53e51d85 MA |
171 | QTAILQ_FOREACH(vc, &non_vlan_clients, next) { |
172 | if (vc != vc1 && strcmp(vc->model, model) == 0) { | |
173 | id++; | |
174 | } | |
175 | } | |
176 | ||
676cff29 AL |
177 | snprintf(buf, sizeof(buf), "%s.%d", model, id); |
178 | ||
7267c094 | 179 | return g_strdup(buf); |
676cff29 AL |
180 | } |
181 | ||
9a6ecb30 | 182 | static ssize_t qemu_deliver_packet(VLANClientState *sender, |
c0b8e49c | 183 | unsigned flags, |
9a6ecb30 MM |
184 | const uint8_t *data, |
185 | size_t size, | |
186 | void *opaque); | |
187 | static ssize_t qemu_deliver_packet_iov(VLANClientState *sender, | |
c0b8e49c | 188 | unsigned flags, |
9a6ecb30 MM |
189 | const struct iovec *iov, |
190 | int iovcnt, | |
191 | void *opaque); | |
192 | ||
45460d1a MM |
193 | VLANClientState *qemu_new_net_client(NetClientInfo *info, |
194 | VLANState *vlan, | |
195 | VLANClientState *peer, | |
196 | const char *model, | |
197 | const char *name) | |
63a01ef8 | 198 | { |
5610c3aa MM |
199 | VLANClientState *vc; |
200 | ||
45460d1a MM |
201 | assert(info->size >= sizeof(VLANClientState)); |
202 | ||
7267c094 | 203 | vc = g_malloc0(info->size); |
5610c3aa | 204 | |
665a3b07 | 205 | vc->info = info; |
7267c094 | 206 | vc->model = g_strdup(model); |
45460d1a | 207 | if (name) { |
7267c094 | 208 | vc->name = g_strdup(name); |
45460d1a | 209 | } else { |
7a9f6e4a | 210 | vc->name = assign_name(vc, model); |
45460d1a | 211 | } |
5610c3aa | 212 | |
d80b9fc6 | 213 | if (vlan) { |
283c7c63 | 214 | assert(!peer); |
d80b9fc6 MM |
215 | vc->vlan = vlan; |
216 | QTAILQ_INSERT_TAIL(&vc->vlan->clients, vc, next); | |
577c4af9 | 217 | } else { |
283c7c63 | 218 | if (peer) { |
27f3f8a3 | 219 | assert(!peer->peer); |
283c7c63 MM |
220 | vc->peer = peer; |
221 | peer->peer = vc; | |
222 | } | |
577c4af9 | 223 | QTAILQ_INSERT_TAIL(&non_vlan_clients, vc, next); |
9a6ecb30 MM |
224 | |
225 | vc->send_queue = qemu_new_net_queue(qemu_deliver_packet, | |
226 | qemu_deliver_packet_iov, | |
227 | vc); | |
d80b9fc6 | 228 | } |
63a01ef8 | 229 | |
63a01ef8 AL |
230 | return vc; |
231 | } | |
232 | ||
ebef2c09 MM |
233 | NICState *qemu_new_nic(NetClientInfo *info, |
234 | NICConf *conf, | |
235 | const char *model, | |
236 | const char *name, | |
237 | void *opaque) | |
238 | { | |
239 | VLANClientState *nc; | |
240 | NICState *nic; | |
241 | ||
242 | assert(info->type == NET_CLIENT_TYPE_NIC); | |
243 | assert(info->size >= sizeof(NICState)); | |
244 | ||
245 | nc = qemu_new_net_client(info, conf->vlan, conf->peer, model, name); | |
246 | ||
247 | nic = DO_UPCAST(NICState, nc, nc); | |
248 | nic->conf = conf; | |
249 | nic->opaque = opaque; | |
250 | ||
251 | return nic; | |
252 | } | |
253 | ||
a083a89d | 254 | static void qemu_cleanup_vlan_client(VLANClientState *vc) |
63a01ef8 | 255 | { |
d80b9fc6 MM |
256 | if (vc->vlan) { |
257 | QTAILQ_REMOVE(&vc->vlan->clients, vc, next); | |
577c4af9 MM |
258 | } else { |
259 | QTAILQ_REMOVE(&non_vlan_clients, vc, next); | |
d80b9fc6 | 260 | } |
63a01ef8 | 261 | |
665a3b07 MM |
262 | if (vc->info->cleanup) { |
263 | vc->info->cleanup(vc); | |
5610c3aa | 264 | } |
a083a89d | 265 | } |
5610c3aa | 266 | |
a083a89d MT |
267 | static void qemu_free_vlan_client(VLANClientState *vc) |
268 | { | |
269 | if (!vc->vlan) { | |
270 | if (vc->send_queue) { | |
271 | qemu_del_net_queue(vc->send_queue); | |
272 | } | |
273 | if (vc->peer) { | |
274 | vc->peer->peer = NULL; | |
275 | } | |
276 | } | |
7267c094 AL |
277 | g_free(vc->name); |
278 | g_free(vc->model); | |
279 | g_free(vc); | |
63a01ef8 AL |
280 | } |
281 | ||
a083a89d MT |
282 | void qemu_del_vlan_client(VLANClientState *vc) |
283 | { | |
284 | /* If there is a peer NIC, delete and cleanup client, but do not free. */ | |
285 | if (!vc->vlan && vc->peer && vc->peer->info->type == NET_CLIENT_TYPE_NIC) { | |
286 | NICState *nic = DO_UPCAST(NICState, nc, vc->peer); | |
287 | if (nic->peer_deleted) { | |
288 | return; | |
289 | } | |
290 | nic->peer_deleted = true; | |
291 | /* Let NIC know peer is gone. */ | |
292 | vc->peer->link_down = true; | |
293 | if (vc->peer->info->link_status_changed) { | |
294 | vc->peer->info->link_status_changed(vc->peer); | |
295 | } | |
296 | qemu_cleanup_vlan_client(vc); | |
297 | return; | |
298 | } | |
299 | ||
300 | /* If this is a peer NIC and peer has already been deleted, free it now. */ | |
301 | if (!vc->vlan && vc->peer && vc->info->type == NET_CLIENT_TYPE_NIC) { | |
302 | NICState *nic = DO_UPCAST(NICState, nc, vc); | |
303 | if (nic->peer_deleted) { | |
304 | qemu_free_vlan_client(vc->peer); | |
305 | } | |
306 | } | |
307 | ||
308 | qemu_cleanup_vlan_client(vc); | |
309 | qemu_free_vlan_client(vc); | |
310 | } | |
311 | ||
68ac40d2 | 312 | VLANClientState * |
1a609520 JK |
313 | qemu_find_vlan_client_by_name(Monitor *mon, int vlan_id, |
314 | const char *client_str) | |
315 | { | |
316 | VLANState *vlan; | |
317 | VLANClientState *vc; | |
318 | ||
319 | vlan = qemu_find_vlan(vlan_id, 0); | |
320 | if (!vlan) { | |
321 | monitor_printf(mon, "unknown VLAN %d\n", vlan_id); | |
322 | return NULL; | |
323 | } | |
324 | ||
5610c3aa | 325 | QTAILQ_FOREACH(vc, &vlan->clients, next) { |
1a609520 JK |
326 | if (!strcmp(vc->name, client_str)) { |
327 | break; | |
328 | } | |
329 | } | |
330 | if (!vc) { | |
331 | monitor_printf(mon, "can't find device %s on VLAN %d\n", | |
332 | client_str, vlan_id); | |
333 | } | |
334 | ||
335 | return vc; | |
336 | } | |
337 | ||
57f9ef17 MM |
338 | void qemu_foreach_nic(qemu_nic_foreach func, void *opaque) |
339 | { | |
340 | VLANClientState *nc; | |
341 | VLANState *vlan; | |
342 | ||
343 | QTAILQ_FOREACH(nc, &non_vlan_clients, next) { | |
344 | if (nc->info->type == NET_CLIENT_TYPE_NIC) { | |
345 | func(DO_UPCAST(NICState, nc, nc), opaque); | |
346 | } | |
347 | } | |
348 | ||
349 | QTAILQ_FOREACH(vlan, &vlans, next) { | |
350 | QTAILQ_FOREACH(nc, &vlan->clients, next) { | |
351 | if (nc->info->type == NET_CLIENT_TYPE_NIC) { | |
352 | func(DO_UPCAST(NICState, nc, nc), opaque); | |
353 | } | |
354 | } | |
355 | } | |
356 | } | |
357 | ||
2e1e0641 | 358 | int qemu_can_send_packet(VLANClientState *sender) |
63a01ef8 | 359 | { |
2e1e0641 | 360 | VLANState *vlan = sender->vlan; |
63a01ef8 AL |
361 | VLANClientState *vc; |
362 | ||
9a6ecb30 | 363 | if (sender->peer) { |
893379ef MM |
364 | if (sender->peer->receive_disabled) { |
365 | return 0; | |
665a3b07 MM |
366 | } else if (sender->peer->info->can_receive && |
367 | !sender->peer->info->can_receive(sender->peer)) { | |
9a6ecb30 | 368 | return 0; |
893379ef MM |
369 | } else { |
370 | return 1; | |
9a6ecb30 MM |
371 | } |
372 | } | |
373 | ||
d80b9fc6 MM |
374 | if (!sender->vlan) { |
375 | return 1; | |
376 | } | |
377 | ||
5610c3aa | 378 | QTAILQ_FOREACH(vc, &vlan->clients, next) { |
2e1e0641 MM |
379 | if (vc == sender) { |
380 | continue; | |
381 | } | |
382 | ||
cda9046b | 383 | /* no can_receive() handler, they can always receive */ |
60c07d93 VP |
384 | if (vc->info->can_receive && !vc->info->can_receive(vc)) { |
385 | return 0; | |
63a01ef8 AL |
386 | } |
387 | } | |
60c07d93 | 388 | return 1; |
63a01ef8 AL |
389 | } |
390 | ||
9a6ecb30 | 391 | static ssize_t qemu_deliver_packet(VLANClientState *sender, |
c0b8e49c | 392 | unsigned flags, |
9a6ecb30 MM |
393 | const uint8_t *data, |
394 | size_t size, | |
395 | void *opaque) | |
396 | { | |
397 | VLANClientState *vc = opaque; | |
893379ef | 398 | ssize_t ret; |
9a6ecb30 MM |
399 | |
400 | if (vc->link_down) { | |
401 | return size; | |
402 | } | |
403 | ||
893379ef MM |
404 | if (vc->receive_disabled) { |
405 | return 0; | |
406 | } | |
407 | ||
665a3b07 MM |
408 | if (flags & QEMU_NET_PACKET_FLAG_RAW && vc->info->receive_raw) { |
409 | ret = vc->info->receive_raw(vc, data, size); | |
893379ef | 410 | } else { |
665a3b07 | 411 | ret = vc->info->receive(vc, data, size); |
893379ef MM |
412 | } |
413 | ||
414 | if (ret == 0) { | |
415 | vc->receive_disabled = 1; | |
416 | }; | |
417 | ||
418 | return ret; | |
9a6ecb30 MM |
419 | } |
420 | ||
f7105843 | 421 | static ssize_t qemu_vlan_deliver_packet(VLANClientState *sender, |
c0b8e49c | 422 | unsigned flags, |
f7105843 MM |
423 | const uint8_t *buf, |
424 | size_t size, | |
425 | void *opaque) | |
63a01ef8 | 426 | { |
f7105843 | 427 | VLANState *vlan = opaque; |
63a01ef8 | 428 | VLANClientState *vc; |
893379ef | 429 | ssize_t ret = -1; |
63a01ef8 | 430 | |
f7105843 | 431 | QTAILQ_FOREACH(vc, &vlan->clients, next) { |
3e021d40 MM |
432 | ssize_t len; |
433 | ||
434 | if (vc == sender) { | |
435 | continue; | |
764a4d1d | 436 | } |
3e021d40 MM |
437 | |
438 | if (vc->link_down) { | |
439 | ret = size; | |
440 | continue; | |
441 | } | |
442 | ||
893379ef MM |
443 | if (vc->receive_disabled) { |
444 | ret = 0; | |
445 | continue; | |
446 | } | |
447 | ||
665a3b07 MM |
448 | if (flags & QEMU_NET_PACKET_FLAG_RAW && vc->info->receive_raw) { |
449 | len = vc->info->receive_raw(vc, buf, size); | |
893379ef | 450 | } else { |
665a3b07 | 451 | len = vc->info->receive(vc, buf, size); |
893379ef MM |
452 | } |
453 | ||
454 | if (len == 0) { | |
455 | vc->receive_disabled = 1; | |
456 | } | |
3e021d40 MM |
457 | |
458 | ret = (ret >= 0) ? ret : len; | |
893379ef | 459 | |
764a4d1d | 460 | } |
3e021d40 MM |
461 | |
462 | return ret; | |
764a4d1d AL |
463 | } |
464 | ||
8cad5516 MM |
465 | void qemu_purge_queued_packets(VLANClientState *vc) |
466 | { | |
9a6ecb30 MM |
467 | NetQueue *queue; |
468 | ||
469 | if (!vc->peer && !vc->vlan) { | |
d80b9fc6 | 470 | return; |
9a6ecb30 | 471 | } |
d80b9fc6 | 472 | |
9a6ecb30 MM |
473 | if (vc->peer) { |
474 | queue = vc->peer->send_queue; | |
475 | } else { | |
476 | queue = vc->vlan->send_queue; | |
477 | } | |
478 | ||
479 | qemu_net_queue_purge(queue, vc); | |
8cad5516 MM |
480 | } |
481 | ||
f3b6c7fc | 482 | void qemu_flush_queued_packets(VLANClientState *vc) |
e94667b9 | 483 | { |
9a6ecb30 MM |
484 | NetQueue *queue; |
485 | ||
893379ef MM |
486 | vc->receive_disabled = 0; |
487 | ||
9a6ecb30 MM |
488 | if (vc->vlan) { |
489 | queue = vc->vlan->send_queue; | |
490 | } else { | |
491 | queue = vc->send_queue; | |
492 | } | |
d80b9fc6 | 493 | |
9a6ecb30 | 494 | qemu_net_queue_flush(queue); |
e94667b9 MM |
495 | } |
496 | ||
ca77d175 MM |
497 | static ssize_t qemu_send_packet_async_with_flags(VLANClientState *sender, |
498 | unsigned flags, | |
499 | const uint8_t *buf, int size, | |
500 | NetPacketSent *sent_cb) | |
764a4d1d | 501 | { |
9a6ecb30 | 502 | NetQueue *queue; |
436e5e53 | 503 | |
63a01ef8 | 504 | #ifdef DEBUG_NET |
d80b9fc6 | 505 | printf("qemu_send_packet_async:\n"); |
63a01ef8 AL |
506 | hex_dump(stdout, buf, size); |
507 | #endif | |
f3b6c7fc | 508 | |
9a6ecb30 MM |
509 | if (sender->link_down || (!sender->peer && !sender->vlan)) { |
510 | return size; | |
511 | } | |
512 | ||
513 | if (sender->peer) { | |
514 | queue = sender->peer->send_queue; | |
515 | } else { | |
516 | queue = sender->vlan->send_queue; | |
517 | } | |
518 | ||
ca77d175 MM |
519 | return qemu_net_queue_send(queue, sender, flags, buf, size, sent_cb); |
520 | } | |
521 | ||
522 | ssize_t qemu_send_packet_async(VLANClientState *sender, | |
523 | const uint8_t *buf, int size, | |
524 | NetPacketSent *sent_cb) | |
525 | { | |
526 | return qemu_send_packet_async_with_flags(sender, QEMU_NET_PACKET_FLAG_NONE, | |
527 | buf, size, sent_cb); | |
f3b6c7fc MM |
528 | } |
529 | ||
530 | void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size) | |
531 | { | |
532 | qemu_send_packet_async(vc, buf, size, NULL); | |
63a01ef8 AL |
533 | } |
534 | ||
ca77d175 MM |
535 | ssize_t qemu_send_packet_raw(VLANClientState *vc, const uint8_t *buf, int size) |
536 | { | |
537 | return qemu_send_packet_async_with_flags(vc, QEMU_NET_PACKET_FLAG_RAW, | |
538 | buf, size, NULL); | |
539 | } | |
540 | ||
fbe78f4f AL |
541 | static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov, |
542 | int iovcnt) | |
543 | { | |
544 | uint8_t buffer[4096]; | |
ce053661 | 545 | size_t offset; |
fbe78f4f | 546 | |
ce053661 | 547 | offset = iov_to_buf(iov, iovcnt, buffer, 0, sizeof(buffer)); |
fbe78f4f | 548 | |
665a3b07 | 549 | return vc->info->receive(vc, buffer, offset); |
fbe78f4f AL |
550 | } |
551 | ||
9a6ecb30 | 552 | static ssize_t qemu_deliver_packet_iov(VLANClientState *sender, |
c0b8e49c | 553 | unsigned flags, |
9a6ecb30 MM |
554 | const struct iovec *iov, |
555 | int iovcnt, | |
556 | void *opaque) | |
557 | { | |
558 | VLANClientState *vc = opaque; | |
559 | ||
560 | if (vc->link_down) { | |
ce053661 | 561 | return iov_size(iov, iovcnt); |
9a6ecb30 MM |
562 | } |
563 | ||
665a3b07 MM |
564 | if (vc->info->receive_iov) { |
565 | return vc->info->receive_iov(vc, iov, iovcnt); | |
9a6ecb30 MM |
566 | } else { |
567 | return vc_sendv_compat(vc, iov, iovcnt); | |
568 | } | |
569 | } | |
570 | ||
f7105843 | 571 | static ssize_t qemu_vlan_deliver_packet_iov(VLANClientState *sender, |
c0b8e49c | 572 | unsigned flags, |
f7105843 MM |
573 | const struct iovec *iov, |
574 | int iovcnt, | |
575 | void *opaque) | |
fbe78f4f | 576 | { |
f7105843 | 577 | VLANState *vlan = opaque; |
fbe78f4f | 578 | VLANClientState *vc; |
f7105843 | 579 | ssize_t ret = -1; |
e94667b9 | 580 | |
f7105843 | 581 | QTAILQ_FOREACH(vc, &vlan->clients, next) { |
e94667b9 MM |
582 | ssize_t len; |
583 | ||
584 | if (vc == sender) { | |
585 | continue; | |
586 | } | |
587 | ||
588 | if (vc->link_down) { | |
ce053661 | 589 | ret = iov_size(iov, iovcnt); |
e94667b9 MM |
590 | continue; |
591 | } | |
592 | ||
ca77d175 MM |
593 | assert(!(flags & QEMU_NET_PACKET_FLAG_RAW)); |
594 | ||
665a3b07 MM |
595 | if (vc->info->receive_iov) { |
596 | len = vc->info->receive_iov(vc, iov, iovcnt); | |
e94667b9 MM |
597 | } else { |
598 | len = vc_sendv_compat(vc, iov, iovcnt); | |
599 | } | |
600 | ||
601 | ret = (ret >= 0) ? ret : len; | |
602 | } | |
603 | ||
e94667b9 MM |
604 | return ret; |
605 | } | |
606 | ||
f3b6c7fc MM |
607 | ssize_t qemu_sendv_packet_async(VLANClientState *sender, |
608 | const struct iovec *iov, int iovcnt, | |
609 | NetPacketSent *sent_cb) | |
e94667b9 | 610 | { |
9a6ecb30 MM |
611 | NetQueue *queue; |
612 | ||
613 | if (sender->link_down || (!sender->peer && !sender->vlan)) { | |
ce053661 | 614 | return iov_size(iov, iovcnt); |
e94667b9 MM |
615 | } |
616 | ||
9a6ecb30 MM |
617 | if (sender->peer) { |
618 | queue = sender->peer->send_queue; | |
619 | } else { | |
620 | queue = sender->vlan->send_queue; | |
621 | } | |
622 | ||
c0b8e49c MM |
623 | return qemu_net_queue_send_iov(queue, sender, |
624 | QEMU_NET_PACKET_FLAG_NONE, | |
625 | iov, iovcnt, sent_cb); | |
fbe78f4f AL |
626 | } |
627 | ||
f3b6c7fc MM |
628 | ssize_t |
629 | qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov, int iovcnt) | |
630 | { | |
631 | return qemu_sendv_packet_async(vc, iov, iovcnt, NULL); | |
632 | } | |
633 | ||
63a01ef8 | 634 | /* find or alloc a new VLAN */ |
1a609520 | 635 | VLANState *qemu_find_vlan(int id, int allocate) |
63a01ef8 | 636 | { |
5610c3aa MM |
637 | VLANState *vlan; |
638 | ||
639 | QTAILQ_FOREACH(vlan, &vlans, next) { | |
640 | if (vlan->id == id) { | |
63a01ef8 | 641 | return vlan; |
5610c3aa | 642 | } |
63a01ef8 | 643 | } |
5610c3aa | 644 | |
1a609520 JK |
645 | if (!allocate) { |
646 | return NULL; | |
647 | } | |
5610c3aa | 648 | |
7267c094 | 649 | vlan = g_malloc0(sizeof(VLANState)); |
63a01ef8 | 650 | vlan->id = id; |
5610c3aa | 651 | QTAILQ_INIT(&vlan->clients); |
f7105843 MM |
652 | |
653 | vlan->send_queue = qemu_new_net_queue(qemu_vlan_deliver_packet, | |
654 | qemu_vlan_deliver_packet_iov, | |
655 | vlan); | |
5610c3aa MM |
656 | |
657 | QTAILQ_INSERT_TAIL(&vlans, vlan, next); | |
658 | ||
63a01ef8 AL |
659 | return vlan; |
660 | } | |
661 | ||
2ef924b4 | 662 | VLANClientState *qemu_find_netdev(const char *id) |
5869c4d5 MM |
663 | { |
664 | VLANClientState *vc; | |
665 | ||
666 | QTAILQ_FOREACH(vc, &non_vlan_clients, next) { | |
85dde9a9 MA |
667 | if (vc->info->type == NET_CLIENT_TYPE_NIC) |
668 | continue; | |
5869c4d5 MM |
669 | if (!strcmp(vc->name, id)) { |
670 | return vc; | |
671 | } | |
672 | } | |
673 | ||
674 | return NULL; | |
675 | } | |
676 | ||
7697079b AL |
677 | static int nic_get_free_idx(void) |
678 | { | |
679 | int index; | |
680 | ||
681 | for (index = 0; index < MAX_NICS; index++) | |
682 | if (!nd_table[index].used) | |
683 | return index; | |
684 | return -1; | |
685 | } | |
686 | ||
07caea31 MA |
687 | int qemu_show_nic_models(const char *arg, const char *const *models) |
688 | { | |
689 | int i; | |
690 | ||
691 | if (!arg || strcmp(arg, "?")) | |
692 | return 0; | |
693 | ||
694 | fprintf(stderr, "qemu: Supported NIC models: "); | |
695 | for (i = 0 ; models[i]; i++) | |
696 | fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n'); | |
697 | return 1; | |
698 | } | |
699 | ||
d07f22c5 AL |
700 | void qemu_check_nic_model(NICInfo *nd, const char *model) |
701 | { | |
702 | const char *models[2]; | |
703 | ||
704 | models[0] = model; | |
705 | models[1] = NULL; | |
706 | ||
07caea31 MA |
707 | if (qemu_show_nic_models(nd->model, models)) |
708 | exit(0); | |
709 | if (qemu_find_nic_model(nd, models, model) < 0) | |
710 | exit(1); | |
d07f22c5 AL |
711 | } |
712 | ||
07caea31 MA |
713 | int qemu_find_nic_model(NICInfo *nd, const char * const *models, |
714 | const char *default_model) | |
d07f22c5 | 715 | { |
07caea31 | 716 | int i; |
d07f22c5 AL |
717 | |
718 | if (!nd->model) | |
7267c094 | 719 | nd->model = g_strdup(default_model); |
d07f22c5 | 720 | |
07caea31 MA |
721 | for (i = 0 ; models[i]; i++) { |
722 | if (strcmp(nd->model, models[i]) == 0) | |
723 | return i; | |
d07f22c5 AL |
724 | } |
725 | ||
6daf194d | 726 | error_report("Unsupported NIC model: %s", nd->model); |
07caea31 | 727 | return -1; |
d07f22c5 AL |
728 | } |
729 | ||
5281d757 | 730 | int net_handle_fd_param(Monitor *mon, const char *param) |
c1d6eed7 | 731 | { |
f7c31d63 JW |
732 | int fd; |
733 | ||
734 | if (!qemu_isdigit(param[0]) && mon) { | |
c1d6eed7 MM |
735 | |
736 | fd = monitor_get_fd(mon, param); | |
737 | if (fd == -1) { | |
1ecda02b | 738 | error_report("No file descriptor named %s found", param); |
c1d6eed7 MM |
739 | return -1; |
740 | } | |
c1d6eed7 | 741 | } else { |
443916d1 | 742 | fd = qemu_parse_fd(param); |
c1d6eed7 | 743 | } |
f7c31d63 JW |
744 | |
745 | return fd; | |
c1d6eed7 MM |
746 | } |
747 | ||
42dcc547 | 748 | static int net_init_nic(QemuOpts *opts, const char *name, VLANState *vlan) |
f83c6e10 MM |
749 | { |
750 | int idx; | |
751 | NICInfo *nd; | |
5869c4d5 | 752 | const char *netdev; |
f83c6e10 MM |
753 | |
754 | idx = nic_get_free_idx(); | |
755 | if (idx == -1 || nb_nics >= MAX_NICS) { | |
1ecda02b | 756 | error_report("Too Many NICs"); |
f83c6e10 MM |
757 | return -1; |
758 | } | |
759 | ||
760 | nd = &nd_table[idx]; | |
761 | ||
762 | memset(nd, 0, sizeof(*nd)); | |
763 | ||
5869c4d5 MM |
764 | if ((netdev = qemu_opt_get(opts, "netdev"))) { |
765 | nd->netdev = qemu_find_netdev(netdev); | |
766 | if (!nd->netdev) { | |
1ecda02b | 767 | error_report("netdev '%s' not found", netdev); |
5869c4d5 MM |
768 | return -1; |
769 | } | |
770 | } else { | |
771 | assert(vlan); | |
772 | nd->vlan = vlan; | |
773 | } | |
6d952ebe | 774 | if (name) { |
7267c094 | 775 | nd->name = g_strdup(name); |
6d952ebe | 776 | } |
f83c6e10 | 777 | if (qemu_opt_get(opts, "model")) { |
7267c094 | 778 | nd->model = g_strdup(qemu_opt_get(opts, "model")); |
f83c6e10 MM |
779 | } |
780 | if (qemu_opt_get(opts, "addr")) { | |
7267c094 | 781 | nd->devaddr = g_strdup(qemu_opt_get(opts, "addr")); |
f83c6e10 MM |
782 | } |
783 | ||
f83c6e10 | 784 | if (qemu_opt_get(opts, "macaddr") && |
6eed1856 | 785 | net_parse_macaddr(nd->macaddr.a, qemu_opt_get(opts, "macaddr")) < 0) { |
1ecda02b | 786 | error_report("invalid syntax for ethernet address"); |
f83c6e10 MM |
787 | return -1; |
788 | } | |
6eed1856 | 789 | qemu_macaddr_default_if_unset(&nd->macaddr); |
f83c6e10 | 790 | |
75422b0d AS |
791 | nd->nvectors = qemu_opt_get_number(opts, "vectors", |
792 | DEV_NVECTORS_UNSPECIFIED); | |
793 | if (nd->nvectors != DEV_NVECTORS_UNSPECIFIED && | |
f83c6e10 | 794 | (nd->nvectors < 0 || nd->nvectors > 0x7ffffff)) { |
1ecda02b | 795 | error_report("invalid # of vectors: %d", nd->nvectors); |
f83c6e10 MM |
796 | return -1; |
797 | } | |
798 | ||
799 | nd->used = 1; | |
f83c6e10 MM |
800 | nb_nics++; |
801 | ||
802 | return idx; | |
803 | } | |
804 | ||
805 | #define NET_COMMON_PARAMS_DESC \ | |
806 | { \ | |
807 | .name = "type", \ | |
808 | .type = QEMU_OPT_STRING, \ | |
809 | .help = "net client type (nic, tap etc.)", \ | |
810 | }, { \ | |
811 | .name = "vlan", \ | |
812 | .type = QEMU_OPT_NUMBER, \ | |
813 | .help = "vlan number", \ | |
814 | }, { \ | |
815 | .name = "name", \ | |
816 | .type = QEMU_OPT_STRING, \ | |
817 | .help = "identifier for monitor commands", \ | |
818 | } | |
819 | ||
6d952ebe | 820 | typedef int (*net_client_init_func)(QemuOpts *opts, |
f6b134ac MM |
821 | const char *name, |
822 | VLANState *vlan); | |
f83c6e10 MM |
823 | |
824 | /* magic number, but compiler will warn if too small */ | |
825 | #define NET_MAX_DESC 20 | |
826 | ||
238431a9 | 827 | static const struct { |
f83c6e10 MM |
828 | const char *type; |
829 | net_client_init_func init; | |
830 | QemuOptDesc desc[NET_MAX_DESC]; | |
6f7b3b1b JK |
831 | } net_client_types[NET_CLIENT_TYPE_MAX] = { |
832 | [NET_CLIENT_TYPE_NONE] = { | |
f83c6e10 MM |
833 | .type = "none", |
834 | .desc = { | |
835 | NET_COMMON_PARAMS_DESC, | |
836 | { /* end of list */ } | |
837 | }, | |
6f7b3b1b JK |
838 | }, |
839 | [NET_CLIENT_TYPE_NIC] = { | |
f83c6e10 MM |
840 | .type = "nic", |
841 | .init = net_init_nic, | |
842 | .desc = { | |
843 | NET_COMMON_PARAMS_DESC, | |
5869c4d5 MM |
844 | { |
845 | .name = "netdev", | |
846 | .type = QEMU_OPT_STRING, | |
847 | .help = "id of -netdev to connect to", | |
848 | }, | |
f83c6e10 MM |
849 | { |
850 | .name = "macaddr", | |
851 | .type = QEMU_OPT_STRING, | |
852 | .help = "MAC address", | |
853 | }, { | |
854 | .name = "model", | |
855 | .type = QEMU_OPT_STRING, | |
856 | .help = "device model (e1000, rtl8139, virtio etc.)", | |
857 | }, { | |
858 | .name = "addr", | |
859 | .type = QEMU_OPT_STRING, | |
860 | .help = "PCI device address", | |
861 | }, { | |
862 | .name = "vectors", | |
863 | .type = QEMU_OPT_NUMBER, | |
864 | .help = "number of MSI-x vectors, 0 to disable MSI-X", | |
865 | }, | |
866 | { /* end of list */ } | |
867 | }, | |
6f7b3b1b | 868 | }, |
ec302ffd | 869 | #ifdef CONFIG_SLIRP |
6f7b3b1b | 870 | [NET_CLIENT_TYPE_USER] = { |
ec302ffd MM |
871 | .type = "user", |
872 | .init = net_init_slirp, | |
873 | .desc = { | |
874 | NET_COMMON_PARAMS_DESC, | |
875 | { | |
876 | .name = "hostname", | |
877 | .type = QEMU_OPT_STRING, | |
878 | .help = "client hostname reported by the builtin DHCP server", | |
879 | }, { | |
880 | .name = "restrict", | |
881 | .type = QEMU_OPT_STRING, | |
882 | .help = "isolate the guest from the host (y|yes|n|no)", | |
883 | }, { | |
884 | .name = "ip", | |
885 | .type = QEMU_OPT_STRING, | |
886 | .help = "legacy parameter, use net= instead", | |
887 | }, { | |
888 | .name = "net", | |
889 | .type = QEMU_OPT_STRING, | |
890 | .help = "IP address and optional netmask", | |
891 | }, { | |
892 | .name = "host", | |
893 | .type = QEMU_OPT_STRING, | |
894 | .help = "guest-visible address of the host", | |
895 | }, { | |
896 | .name = "tftp", | |
897 | .type = QEMU_OPT_STRING, | |
898 | .help = "root directory of the built-in TFTP server", | |
899 | }, { | |
900 | .name = "bootfile", | |
901 | .type = QEMU_OPT_STRING, | |
902 | .help = "BOOTP filename, for use with tftp=", | |
903 | }, { | |
904 | .name = "dhcpstart", | |
905 | .type = QEMU_OPT_STRING, | |
906 | .help = "the first of the 16 IPs the built-in DHCP server can assign", | |
907 | }, { | |
908 | .name = "dns", | |
909 | .type = QEMU_OPT_STRING, | |
910 | .help = "guest-visible address of the virtual nameserver", | |
911 | }, { | |
912 | .name = "smb", | |
913 | .type = QEMU_OPT_STRING, | |
914 | .help = "root directory of the built-in SMB server", | |
915 | }, { | |
916 | .name = "smbserver", | |
917 | .type = QEMU_OPT_STRING, | |
918 | .help = "IP address of the built-in SMB server", | |
919 | }, { | |
920 | .name = "hostfwd", | |
921 | .type = QEMU_OPT_STRING, | |
922 | .help = "guest port number to forward incoming TCP or UDP connections", | |
923 | }, { | |
924 | .name = "guestfwd", | |
925 | .type = QEMU_OPT_STRING, | |
926 | .help = "IP address and port to forward guest TCP connections", | |
927 | }, | |
928 | { /* end of list */ } | |
929 | }, | |
6f7b3b1b | 930 | }, |
8a1c5235 | 931 | #endif |
6f7b3b1b | 932 | [NET_CLIENT_TYPE_TAP] = { |
8a1c5235 | 933 | .type = "tap", |
a8ed73f7 | 934 | .init = net_init_tap, |
8a1c5235 MM |
935 | .desc = { |
936 | NET_COMMON_PARAMS_DESC, | |
937 | { | |
938 | .name = "ifname", | |
939 | .type = QEMU_OPT_STRING, | |
940 | .help = "interface name", | |
941 | }, | |
a8ed73f7 | 942 | #ifndef _WIN32 |
8a1c5235 MM |
943 | { |
944 | .name = "fd", | |
945 | .type = QEMU_OPT_STRING, | |
946 | .help = "file descriptor of an already opened tap", | |
8a1c5235 MM |
947 | }, { |
948 | .name = "script", | |
949 | .type = QEMU_OPT_STRING, | |
950 | .help = "script to initialize the interface", | |
951 | }, { | |
952 | .name = "downscript", | |
953 | .type = QEMU_OPT_STRING, | |
954 | .help = "script to shut down the interface", | |
a7c36ee4 | 955 | }, { |
2944e4ec | 956 | #ifdef CONFIG_NET_BRIDGE |
a7c36ee4 CB |
957 | .name = "helper", |
958 | .type = QEMU_OPT_STRING, | |
959 | .help = "command to execute to configure bridge", | |
8a1c5235 | 960 | }, { |
2944e4ec | 961 | #endif |
8a1c5235 MM |
962 | .name = "sndbuf", |
963 | .type = QEMU_OPT_SIZE, | |
964 | .help = "send buffer limit" | |
baf74c95 MM |
965 | }, { |
966 | .name = "vnet_hdr", | |
967 | .type = QEMU_OPT_BOOL, | |
968 | .help = "enable the IFF_VNET_HDR flag on the tap interface" | |
82b0d80e MT |
969 | }, { |
970 | .name = "vhost", | |
971 | .type = QEMU_OPT_BOOL, | |
972 | .help = "enable vhost-net network accelerator", | |
973 | }, { | |
974 | .name = "vhostfd", | |
975 | .type = QEMU_OPT_STRING, | |
976 | .help = "file descriptor of an already opened vhost net device", | |
96c94b29 JW |
977 | }, { |
978 | .name = "vhostforce", | |
979 | .type = QEMU_OPT_BOOL, | |
980 | .help = "force vhost on for non-MSIX virtio guests", | |
981 | }, | |
a8ed73f7 | 982 | #endif /* _WIN32 */ |
8a1c5235 MM |
983 | { /* end of list */ } |
984 | }, | |
6f7b3b1b JK |
985 | }, |
986 | [NET_CLIENT_TYPE_SOCKET] = { | |
88ce16ca MM |
987 | .type = "socket", |
988 | .init = net_init_socket, | |
989 | .desc = { | |
990 | NET_COMMON_PARAMS_DESC, | |
991 | { | |
992 | .name = "fd", | |
993 | .type = QEMU_OPT_STRING, | |
994 | .help = "file descriptor of an already opened socket", | |
995 | }, { | |
996 | .name = "listen", | |
997 | .type = QEMU_OPT_STRING, | |
998 | .help = "port number, and optional hostname, to listen on", | |
999 | }, { | |
1000 | .name = "connect", | |
1001 | .type = QEMU_OPT_STRING, | |
1002 | .help = "port number, and optional hostname, to connect to", | |
1003 | }, { | |
1004 | .name = "mcast", | |
1005 | .type = QEMU_OPT_STRING, | |
1006 | .help = "UDP multicast address and port number", | |
3a75e74c MR |
1007 | }, { |
1008 | .name = "localaddr", | |
1009 | .type = QEMU_OPT_STRING, | |
0e0e7fac BM |
1010 | .help = "source address and port for multicast and udp packets", |
1011 | }, { | |
1012 | .name = "udp", | |
1013 | .type = QEMU_OPT_STRING, | |
1014 | .help = "UDP unicast address and port number", | |
88ce16ca MM |
1015 | }, |
1016 | { /* end of list */ } | |
1017 | }, | |
6f7b3b1b | 1018 | }, |
dd51058d | 1019 | #ifdef CONFIG_VDE |
6f7b3b1b | 1020 | [NET_CLIENT_TYPE_VDE] = { |
dd51058d MM |
1021 | .type = "vde", |
1022 | .init = net_init_vde, | |
1023 | .desc = { | |
1024 | NET_COMMON_PARAMS_DESC, | |
1025 | { | |
1026 | .name = "sock", | |
1027 | .type = QEMU_OPT_STRING, | |
1028 | .help = "socket path", | |
1029 | }, { | |
1030 | .name = "port", | |
1031 | .type = QEMU_OPT_NUMBER, | |
1032 | .help = "port number", | |
1033 | }, { | |
1034 | .name = "group", | |
1035 | .type = QEMU_OPT_STRING, | |
1036 | .help = "group owner of socket", | |
1037 | }, { | |
1038 | .name = "mode", | |
1039 | .type = QEMU_OPT_NUMBER, | |
1040 | .help = "permissions for socket", | |
1041 | }, | |
1042 | { /* end of list */ } | |
1043 | }, | |
6f7b3b1b | 1044 | }, |
dd51058d | 1045 | #endif |
6f7b3b1b | 1046 | [NET_CLIENT_TYPE_DUMP] = { |
ed2955c2 MM |
1047 | .type = "dump", |
1048 | .init = net_init_dump, | |
1049 | .desc = { | |
1050 | NET_COMMON_PARAMS_DESC, | |
1051 | { | |
1052 | .name = "len", | |
1053 | .type = QEMU_OPT_SIZE, | |
1054 | .help = "per-packet size limit (64k default)", | |
1055 | }, { | |
1056 | .name = "file", | |
1057 | .type = QEMU_OPT_STRING, | |
1058 | .help = "dump file path (default is qemu-vlan0.pcap)", | |
1059 | }, | |
1060 | { /* end of list */ } | |
1061 | }, | |
f83c6e10 | 1062 | }, |
2944e4ec | 1063 | #ifdef CONFIG_NET_BRIDGE |
a7c36ee4 CB |
1064 | [NET_CLIENT_TYPE_BRIDGE] = { |
1065 | .type = "bridge", | |
1066 | .init = net_init_bridge, | |
1067 | .desc = { | |
1068 | NET_COMMON_PARAMS_DESC, | |
1069 | { | |
1070 | .name = "br", | |
1071 | .type = QEMU_OPT_STRING, | |
1072 | .help = "bridge name", | |
1073 | }, { | |
1074 | .name = "helper", | |
1075 | .type = QEMU_OPT_STRING, | |
1076 | .help = "command to execute to configure bridge", | |
1077 | }, | |
1078 | { /* end of list */ } | |
1079 | }, | |
1080 | }, | |
2944e4ec | 1081 | #endif /* CONFIG_NET_BRIDGE */ |
f83c6e10 MM |
1082 | }; |
1083 | ||
4559a1db | 1084 | int net_client_init(QemuOpts *opts, int is_netdev, Error **errp) |
f83c6e10 | 1085 | { |
6d952ebe | 1086 | const char *name; |
f83c6e10 MM |
1087 | const char *type; |
1088 | int i; | |
1089 | ||
1090 | type = qemu_opt_get(opts, "type"); | |
5294e2c7 | 1091 | if (!type) { |
4559a1db | 1092 | error_set(errp, QERR_MISSING_PARAMETER, "type"); |
5294e2c7 MA |
1093 | return -1; |
1094 | } | |
f83c6e10 | 1095 | |
5294e2c7 | 1096 | if (is_netdev) { |
f6b134ac | 1097 | if (strcmp(type, "tap") != 0 && |
2944e4ec SW |
1098 | #ifdef CONFIG_NET_BRIDGE |
1099 | strcmp(type, "bridge") != 0 && | |
1100 | #endif | |
f6b134ac MM |
1101 | #ifdef CONFIG_SLIRP |
1102 | strcmp(type, "user") != 0 && | |
1103 | #endif | |
1104 | #ifdef CONFIG_VDE | |
1105 | strcmp(type, "vde") != 0 && | |
1106 | #endif | |
2944e4ec | 1107 | strcmp(type, "socket") != 0) { |
4559a1db LC |
1108 | error_set(errp, QERR_INVALID_PARAMETER_VALUE, "type", |
1109 | "a netdev backend type"); | |
f6b134ac MM |
1110 | return -1; |
1111 | } | |
1112 | ||
1113 | if (qemu_opt_get(opts, "vlan")) { | |
4559a1db | 1114 | error_set(errp, QERR_INVALID_PARAMETER, "vlan"); |
f6b134ac MM |
1115 | return -1; |
1116 | } | |
1117 | if (qemu_opt_get(opts, "name")) { | |
4559a1db | 1118 | error_set(errp, QERR_INVALID_PARAMETER, "name"); |
f6b134ac MM |
1119 | return -1; |
1120 | } | |
1121 | if (!qemu_opts_id(opts)) { | |
4559a1db | 1122 | error_set(errp, QERR_MISSING_PARAMETER, "id"); |
f6b134ac MM |
1123 | return -1; |
1124 | } | |
1125 | } | |
1126 | ||
6d952ebe MM |
1127 | name = qemu_opts_id(opts); |
1128 | if (!name) { | |
1129 | name = qemu_opt_get(opts, "name"); | |
1130 | } | |
1131 | ||
6f7b3b1b JK |
1132 | for (i = 0; i < NET_CLIENT_TYPE_MAX; i++) { |
1133 | if (net_client_types[i].type != NULL && | |
1134 | !strcmp(net_client_types[i].type, type)) { | |
29952866 | 1135 | Error *local_err = NULL; |
f6b134ac | 1136 | VLANState *vlan = NULL; |
50e32ea8 | 1137 | int ret; |
f6b134ac | 1138 | |
29952866 LC |
1139 | qemu_opts_validate(opts, &net_client_types[i].desc[0], &local_err); |
1140 | if (error_is_set(&local_err)) { | |
4559a1db | 1141 | error_propagate(errp, local_err); |
f83c6e10 MM |
1142 | return -1; |
1143 | } | |
1144 | ||
5869c4d5 MM |
1145 | /* Do not add to a vlan if it's a -netdev or a nic with a |
1146 | * netdev= parameter. */ | |
1147 | if (!(is_netdev || | |
1148 | (strcmp(type, "nic") == 0 && qemu_opt_get(opts, "netdev")))) { | |
f6b134ac MM |
1149 | vlan = qemu_find_vlan(qemu_opt_get_number(opts, "vlan", 0), 1); |
1150 | } | |
1151 | ||
03c71553 | 1152 | ret = 0; |
f83c6e10 | 1153 | if (net_client_types[i].init) { |
42dcc547 | 1154 | ret = net_client_types[i].init(opts, name, vlan); |
50e32ea8 | 1155 | if (ret < 0) { |
5294e2c7 | 1156 | /* TODO push error reporting into init() methods */ |
4559a1db | 1157 | error_set(errp, QERR_DEVICE_INIT_FAILED, type); |
5294e2c7 MA |
1158 | return -1; |
1159 | } | |
f83c6e10 | 1160 | } |
50e32ea8 | 1161 | return ret; |
f83c6e10 MM |
1162 | } |
1163 | } | |
1164 | ||
4559a1db LC |
1165 | error_set(errp, QERR_INVALID_PARAMETER_VALUE, "type", |
1166 | "a network client type"); | |
f83c6e10 MM |
1167 | return -1; |
1168 | } | |
1169 | ||
6f338c34 AL |
1170 | static int net_host_check_device(const char *device) |
1171 | { | |
1172 | int i; | |
bb9ea79e | 1173 | const char *valid_param_list[] = { "tap", "socket", "dump" |
2944e4ec SW |
1174 | #ifdef CONFIG_NET_BRIDGE |
1175 | , "bridge" | |
1176 | #endif | |
6f338c34 AL |
1177 | #ifdef CONFIG_SLIRP |
1178 | ,"user" | |
1179 | #endif | |
1180 | #ifdef CONFIG_VDE | |
1181 | ,"vde" | |
1182 | #endif | |
1183 | }; | |
1184 | for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) { | |
1185 | if (!strncmp(valid_param_list[i], device, | |
1186 | strlen(valid_param_list[i]))) | |
1187 | return 1; | |
1188 | } | |
1189 | ||
1190 | return 0; | |
1191 | } | |
1192 | ||
f18c16de | 1193 | void net_host_device_add(Monitor *mon, const QDict *qdict) |
6f338c34 | 1194 | { |
f18c16de | 1195 | const char *device = qdict_get_str(qdict, "device"); |
7f1c9d20 | 1196 | const char *opts_str = qdict_get_try_str(qdict, "opts"); |
4559a1db | 1197 | Error *local_err = NULL; |
7f1c9d20 | 1198 | QemuOpts *opts; |
f18c16de | 1199 | |
6f338c34 | 1200 | if (!net_host_check_device(device)) { |
376253ec | 1201 | monitor_printf(mon, "invalid host network device %s\n", device); |
6f338c34 AL |
1202 | return; |
1203 | } | |
7f1c9d20 | 1204 | |
3329f07b | 1205 | opts = qemu_opts_parse(qemu_find_opts("net"), opts_str ? opts_str : "", 0); |
7f1c9d20 | 1206 | if (!opts) { |
7f1c9d20 MM |
1207 | return; |
1208 | } | |
1209 | ||
1210 | qemu_opt_set(opts, "type", device); | |
1211 | ||
4559a1db LC |
1212 | net_client_init(opts, 0, &local_err); |
1213 | if (error_is_set(&local_err)) { | |
1214 | qerror_report_err(local_err); | |
1215 | error_free(local_err); | |
5c8be678 AL |
1216 | monitor_printf(mon, "adding host network device %s failed\n", device); |
1217 | } | |
6f338c34 AL |
1218 | } |
1219 | ||
f18c16de | 1220 | void net_host_device_remove(Monitor *mon, const QDict *qdict) |
6f338c34 | 1221 | { |
6f338c34 | 1222 | VLANClientState *vc; |
f18c16de LC |
1223 | int vlan_id = qdict_get_int(qdict, "vlan_id"); |
1224 | const char *device = qdict_get_str(qdict, "device"); | |
6f338c34 | 1225 | |
1a609520 | 1226 | vc = qemu_find_vlan_client_by_name(mon, vlan_id, device); |
6f338c34 | 1227 | if (!vc) { |
6f338c34 AL |
1228 | return; |
1229 | } | |
e8f1f9db AL |
1230 | if (!net_host_check_device(vc->model)) { |
1231 | monitor_printf(mon, "invalid host network device %s\n", device); | |
1232 | return; | |
1233 | } | |
6f338c34 AL |
1234 | qemu_del_vlan_client(vc); |
1235 | } | |
1236 | ||
928059a3 LC |
1237 | void netdev_add(QemuOpts *opts, Error **errp) |
1238 | { | |
1239 | net_client_init(opts, 1, errp); | |
1240 | } | |
1241 | ||
1242 | int qmp_netdev_add(Monitor *mon, const QDict *qdict, QObject **ret) | |
ae82d324 | 1243 | { |
4e89978e | 1244 | Error *local_err = NULL; |
928059a3 | 1245 | QemuOptsList *opts_list; |
ae82d324 | 1246 | QemuOpts *opts; |
ae82d324 | 1247 | |
928059a3 LC |
1248 | opts_list = qemu_find_opts_err("netdev", &local_err); |
1249 | if (error_is_set(&local_err)) { | |
1250 | goto exit_err; | |
ae82d324 MA |
1251 | } |
1252 | ||
928059a3 LC |
1253 | opts = qemu_opts_from_qdict(opts_list, qdict, &local_err); |
1254 | if (error_is_set(&local_err)) { | |
1255 | goto exit_err; | |
1256 | } | |
1257 | ||
1258 | netdev_add(opts, &local_err); | |
1259 | if (error_is_set(&local_err)) { | |
410cbafe | 1260 | qemu_opts_del(opts); |
928059a3 | 1261 | goto exit_err; |
410cbafe YT |
1262 | } |
1263 | ||
928059a3 LC |
1264 | return 0; |
1265 | ||
1266 | exit_err: | |
1267 | qerror_report_err(local_err); | |
1268 | error_free(local_err); | |
1269 | return -1; | |
ae82d324 MA |
1270 | } |
1271 | ||
5f964155 | 1272 | void qmp_netdev_del(const char *id, Error **errp) |
ae82d324 | 1273 | { |
ae82d324 MA |
1274 | VLANClientState *vc; |
1275 | ||
1276 | vc = qemu_find_netdev(id); | |
85dde9a9 | 1277 | if (!vc) { |
5f964155 LC |
1278 | error_set(errp, QERR_DEVICE_NOT_FOUND, id); |
1279 | return; | |
ae82d324 | 1280 | } |
5f964155 | 1281 | |
ae82d324 | 1282 | qemu_del_vlan_client(vc); |
5f964155 | 1283 | qemu_opts_del(qemu_opts_find(qemu_find_opts_err("netdev", errp), id)); |
ae82d324 MA |
1284 | } |
1285 | ||
44e798d3 JK |
1286 | static void print_net_client(Monitor *mon, VLANClientState *vc) |
1287 | { | |
1288 | monitor_printf(mon, "%s: type=%s,%s\n", vc->name, | |
1289 | net_client_types[vc->info->type].type, vc->info_str); | |
1290 | } | |
1291 | ||
376253ec | 1292 | void do_info_network(Monitor *mon) |
63a01ef8 AL |
1293 | { |
1294 | VLANState *vlan; | |
19061e63 JK |
1295 | VLANClientState *vc, *peer; |
1296 | net_client_type type; | |
63a01ef8 | 1297 | |
5610c3aa | 1298 | QTAILQ_FOREACH(vlan, &vlans, next) { |
376253ec | 1299 | monitor_printf(mon, "VLAN %d devices:\n", vlan->id); |
5610c3aa MM |
1300 | |
1301 | QTAILQ_FOREACH(vc, &vlan->clients, next) { | |
44e798d3 JK |
1302 | monitor_printf(mon, " "); |
1303 | print_net_client(mon, vc); | |
5610c3aa | 1304 | } |
63a01ef8 | 1305 | } |
a0104e0e MA |
1306 | monitor_printf(mon, "Devices not on any VLAN:\n"); |
1307 | QTAILQ_FOREACH(vc, &non_vlan_clients, next) { | |
19061e63 JK |
1308 | peer = vc->peer; |
1309 | type = vc->info->type; | |
1310 | if (!peer || type == NET_CLIENT_TYPE_NIC) { | |
44e798d3 JK |
1311 | monitor_printf(mon, " "); |
1312 | print_net_client(mon, vc); | |
19061e63 JK |
1313 | } /* else it's a netdev connected to a NIC, printed with the NIC */ |
1314 | if (peer && type == NET_CLIENT_TYPE_NIC) { | |
44e798d3 JK |
1315 | monitor_printf(mon, " \\ "); |
1316 | print_net_client(mon, peer); | |
a0104e0e | 1317 | } |
a0104e0e | 1318 | } |
63a01ef8 AL |
1319 | } |
1320 | ||
4b37156c | 1321 | void qmp_set_link(const char *name, bool up, Error **errp) |
436e5e53 AL |
1322 | { |
1323 | VLANState *vlan; | |
1324 | VLANClientState *vc = NULL; | |
1325 | ||
5610c3aa MM |
1326 | QTAILQ_FOREACH(vlan, &vlans, next) { |
1327 | QTAILQ_FOREACH(vc, &vlan->clients, next) { | |
1328 | if (strcmp(vc->name, name) == 0) { | |
dd5de373 | 1329 | goto done; |
5610c3aa MM |
1330 | } |
1331 | } | |
1332 | } | |
85dde9a9 MA |
1333 | QTAILQ_FOREACH(vc, &non_vlan_clients, next) { |
1334 | if (!strcmp(vc->name, name)) { | |
1335 | goto done; | |
1336 | } | |
1337 | } | |
dd5de373 | 1338 | done: |
436e5e53 AL |
1339 | |
1340 | if (!vc) { | |
4b37156c LC |
1341 | error_set(errp, QERR_DEVICE_NOT_FOUND, name); |
1342 | return; | |
436e5e53 AL |
1343 | } |
1344 | ||
c9b26a4c | 1345 | vc->link_down = !up; |
436e5e53 | 1346 | |
665a3b07 MM |
1347 | if (vc->info->link_status_changed) { |
1348 | vc->info->link_status_changed(vc); | |
1349 | } | |
ab1cbe1c MT |
1350 | |
1351 | /* Notify peer. Don't update peer link status: this makes it possible to | |
1352 | * disconnect from host network without notifying the guest. | |
1353 | * FIXME: is disconnected link status change operation useful? | |
1354 | * | |
1355 | * Current behaviour is compatible with qemu vlans where there could be | |
1356 | * multiple clients that can still communicate with each other in | |
1357 | * disconnected mode. For now maintain this compatibility. */ | |
1358 | if (vc->peer && vc->peer->info->link_status_changed) { | |
1359 | vc->peer->info->link_status_changed(vc->peer); | |
1360 | } | |
436e5e53 AL |
1361 | } |
1362 | ||
63a01ef8 AL |
1363 | void net_cleanup(void) |
1364 | { | |
1365 | VLANState *vlan; | |
577c4af9 | 1366 | VLANClientState *vc, *next_vc; |
63a01ef8 | 1367 | |
5610c3aa | 1368 | QTAILQ_FOREACH(vlan, &vlans, next) { |
5610c3aa | 1369 | QTAILQ_FOREACH_SAFE(vc, &vlan->clients, next, next_vc) { |
b946a153 | 1370 | qemu_del_vlan_client(vc); |
63a01ef8 AL |
1371 | } |
1372 | } | |
577c4af9 MM |
1373 | |
1374 | QTAILQ_FOREACH_SAFE(vc, &non_vlan_clients, next, next_vc) { | |
1375 | qemu_del_vlan_client(vc); | |
1376 | } | |
63a01ef8 AL |
1377 | } |
1378 | ||
668680f7 | 1379 | void net_check_clients(void) |
63a01ef8 AL |
1380 | { |
1381 | VLANState *vlan; | |
62112d18 | 1382 | VLANClientState *vc; |
48e2faf2 | 1383 | int i; |
63a01ef8 | 1384 | |
641f6eae PM |
1385 | /* Don't warn about the default network setup that you get if |
1386 | * no command line -net or -netdev options are specified. There | |
1387 | * are two cases that we would otherwise complain about: | |
1388 | * (1) board doesn't support a NIC but the implicit "-net nic" | |
1389 | * requested one | |
1390 | * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic" | |
1391 | * sets up a nic that isn't connected to anything. | |
1392 | */ | |
1393 | if (default_net) { | |
1394 | return; | |
1395 | } | |
1396 | ||
5610c3aa | 1397 | QTAILQ_FOREACH(vlan, &vlans, next) { |
ac60cc18 TG |
1398 | int has_nic = 0, has_host_dev = 0; |
1399 | ||
62112d18 MA |
1400 | QTAILQ_FOREACH(vc, &vlan->clients, next) { |
1401 | switch (vc->info->type) { | |
1402 | case NET_CLIENT_TYPE_NIC: | |
1403 | has_nic = 1; | |
1404 | break; | |
6f7b3b1b | 1405 | case NET_CLIENT_TYPE_USER: |
62112d18 MA |
1406 | case NET_CLIENT_TYPE_TAP: |
1407 | case NET_CLIENT_TYPE_SOCKET: | |
1408 | case NET_CLIENT_TYPE_VDE: | |
1409 | has_host_dev = 1; | |
1410 | break; | |
1411 | default: ; | |
1412 | } | |
1413 | } | |
1414 | if (has_host_dev && !has_nic) | |
63a01ef8 | 1415 | fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id); |
62112d18 | 1416 | if (has_nic && !has_host_dev) |
63a01ef8 AL |
1417 | fprintf(stderr, |
1418 | "Warning: vlan %d is not connected to host network\n", | |
1419 | vlan->id); | |
1420 | } | |
efe32fdd MA |
1421 | QTAILQ_FOREACH(vc, &non_vlan_clients, next) { |
1422 | if (!vc->peer) { | |
1423 | fprintf(stderr, "Warning: %s %s has no peer\n", | |
1424 | vc->info->type == NET_CLIENT_TYPE_NIC ? "nic" : "netdev", | |
1425 | vc->name); | |
1426 | } | |
1427 | } | |
48e2faf2 PM |
1428 | |
1429 | /* Check that all NICs requested via -net nic actually got created. | |
1430 | * NICs created via -device don't need to be checked here because | |
1431 | * they are always instantiated. | |
1432 | */ | |
1433 | for (i = 0; i < MAX_NICS; i++) { | |
1434 | NICInfo *nd = &nd_table[i]; | |
1435 | if (nd->used && !nd->instantiated) { | |
1436 | fprintf(stderr, "Warning: requested NIC (%s, model %s) " | |
1437 | "was not created (not supported by this machine?)\n", | |
1438 | nd->name ? nd->name : "anonymous", | |
1439 | nd->model ? nd->model : "unspecified"); | |
1440 | } | |
1441 | } | |
63a01ef8 | 1442 | } |
dc1c9fe8 MM |
1443 | |
1444 | static int net_init_client(QemuOpts *opts, void *dummy) | |
1445 | { | |
4559a1db LC |
1446 | Error *local_err = NULL; |
1447 | ||
1448 | net_client_init(opts, 0, &local_err); | |
1449 | if (error_is_set(&local_err)) { | |
1450 | qerror_report_err(local_err); | |
1451 | error_free(local_err); | |
c1671a08 | 1452 | return -1; |
4559a1db LC |
1453 | } |
1454 | ||
c1671a08 | 1455 | return 0; |
f6b134ac MM |
1456 | } |
1457 | ||
1458 | static int net_init_netdev(QemuOpts *opts, void *dummy) | |
1459 | { | |
4559a1db LC |
1460 | Error *local_err = NULL; |
1461 | int ret; | |
1462 | ||
1463 | ret = net_client_init(opts, 1, &local_err); | |
1464 | if (error_is_set(&local_err)) { | |
1465 | qerror_report_err(local_err); | |
1466 | error_free(local_err); | |
1467 | return -1; | |
1468 | } | |
1469 | ||
1470 | return ret; | |
dc1c9fe8 MM |
1471 | } |
1472 | ||
1473 | int net_init_clients(void) | |
1474 | { | |
3329f07b GH |
1475 | QemuOptsList *net = qemu_find_opts("net"); |
1476 | ||
cb4522cc | 1477 | if (default_net) { |
dc1c9fe8 | 1478 | /* if no clients, we use a default config */ |
3329f07b | 1479 | qemu_opts_set(net, NULL, "type", "nic"); |
dc1c9fe8 | 1480 | #ifdef CONFIG_SLIRP |
3329f07b | 1481 | qemu_opts_set(net, NULL, "type", "user"); |
dc1c9fe8 MM |
1482 | #endif |
1483 | } | |
1484 | ||
5610c3aa | 1485 | QTAILQ_INIT(&vlans); |
577c4af9 | 1486 | QTAILQ_INIT(&non_vlan_clients); |
5610c3aa | 1487 | |
3329f07b | 1488 | if (qemu_opts_foreach(qemu_find_opts("netdev"), net_init_netdev, NULL, 1) == -1) |
f6b134ac MM |
1489 | return -1; |
1490 | ||
3329f07b | 1491 | if (qemu_opts_foreach(net, net_init_client, NULL, 1) == -1) { |
dc1c9fe8 MM |
1492 | return -1; |
1493 | } | |
1494 | ||
dc1c9fe8 MM |
1495 | return 0; |
1496 | } | |
1497 | ||
7f161aae | 1498 | int net_client_parse(QemuOptsList *opts_list, const char *optarg) |
dc1c9fe8 | 1499 | { |
a3a766e7 | 1500 | #if defined(CONFIG_SLIRP) |
68ac40d2 MM |
1501 | int ret; |
1502 | if (net_slirp_parse_legacy(opts_list, optarg, &ret)) { | |
dc1c9fe8 MM |
1503 | return ret; |
1504 | } | |
a3a766e7 | 1505 | #endif |
68ac40d2 | 1506 | |
8212c64f | 1507 | if (!qemu_opts_parse(opts_list, optarg, 1)) { |
dc1c9fe8 MM |
1508 | return -1; |
1509 | } | |
1510 | ||
cb4522cc | 1511 | default_net = 0; |
dc1c9fe8 MM |
1512 | return 0; |
1513 | } | |
7fc8d918 JW |
1514 | |
1515 | /* From FreeBSD */ | |
1516 | /* XXX: optimize */ | |
1517 | unsigned compute_mcast_idx(const uint8_t *ep) | |
1518 | { | |
1519 | uint32_t crc; | |
1520 | int carry, i, j; | |
1521 | uint8_t b; | |
1522 | ||
1523 | crc = 0xffffffff; | |
1524 | for (i = 0; i < 6; i++) { | |
1525 | b = *ep++; | |
1526 | for (j = 0; j < 8; j++) { | |
1527 | carry = ((crc & 0x80000000L) ? 1 : 0) ^ (b & 0x01); | |
1528 | crc <<= 1; | |
1529 | b >>= 1; | |
1530 | if (carry) { | |
1531 | crc = ((crc ^ POLYNOMIAL) | carry); | |
1532 | } | |
1533 | } | |
1534 | } | |
1535 | return crc >> 26; | |
1536 | } |