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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 | */ | |
d40cdb10 BS |
24 | #include "config-host.h" |
25 | ||
1422e32d | 26 | #include "net/net.h" |
fd9400b3 PB |
27 | #include "clients.h" |
28 | #include "hub.h" | |
1422e32d | 29 | #include "net/slirp.h" |
d60b20cf | 30 | #include "net/eth.h" |
fd9400b3 | 31 | #include "util.h" |
a245fc18 | 32 | |
83c9089e | 33 | #include "monitor/monitor.h" |
1df49e04 | 34 | #include "qemu-common.h" |
1de7afc9 PB |
35 | #include "qemu/sockets.h" |
36 | #include "qemu/config-file.h" | |
4b37156c | 37 | #include "qmp-commands.h" |
75422b0d | 38 | #include "hw/qdev.h" |
1de7afc9 | 39 | #include "qemu/iov.h" |
6a1751b7 | 40 | #include "qemu/main-loop.h" |
6687b79d LE |
41 | #include "qapi-visit.h" |
42 | #include "qapi/opts-visitor.h" | |
7b1b5d19 | 43 | #include "qapi/dealloc-visitor.h" |
511d2b14 | 44 | |
2944e4ec SW |
45 | /* Net bridge is currently not supported for W32. */ |
46 | #if !defined(_WIN32) | |
47 | # define CONFIG_NET_BRIDGE | |
48 | #endif | |
49 | ||
4e68f7a0 | 50 | static QTAILQ_HEAD(, NetClientState) net_clients; |
63a01ef8 | 51 | |
cb4522cc GH |
52 | int default_net = 1; |
53 | ||
63a01ef8 AL |
54 | /***********************************************************/ |
55 | /* network device redirectors */ | |
56 | ||
68ac40d2 | 57 | #if defined(DEBUG_NET) |
63a01ef8 AL |
58 | static void hex_dump(FILE *f, const uint8_t *buf, int size) |
59 | { | |
60 | int len, i, j, c; | |
61 | ||
62 | for(i=0;i<size;i+=16) { | |
63 | len = size - i; | |
64 | if (len > 16) | |
65 | len = 16; | |
66 | fprintf(f, "%08x ", i); | |
67 | for(j=0;j<16;j++) { | |
68 | if (j < len) | |
69 | fprintf(f, " %02x", buf[i+j]); | |
70 | else | |
71 | fprintf(f, " "); | |
72 | } | |
73 | fprintf(f, " "); | |
74 | for(j=0;j<len;j++) { | |
75 | c = buf[i+j]; | |
76 | if (c < ' ' || c > '~') | |
77 | c = '.'; | |
78 | fprintf(f, "%c", c); | |
79 | } | |
80 | fprintf(f, "\n"); | |
81 | } | |
82 | } | |
83 | #endif | |
84 | ||
63a01ef8 AL |
85 | static int get_str_sep(char *buf, int buf_size, const char **pp, int sep) |
86 | { | |
87 | const char *p, *p1; | |
88 | int len; | |
89 | p = *pp; | |
90 | p1 = strchr(p, sep); | |
91 | if (!p1) | |
92 | return -1; | |
93 | len = p1 - p; | |
94 | p1++; | |
95 | if (buf_size > 0) { | |
96 | if (len > buf_size - 1) | |
97 | len = buf_size - 1; | |
98 | memcpy(buf, p, len); | |
99 | buf[len] = '\0'; | |
100 | } | |
101 | *pp = p1; | |
102 | return 0; | |
103 | } | |
104 | ||
63a01ef8 AL |
105 | int parse_host_port(struct sockaddr_in *saddr, const char *str) |
106 | { | |
107 | char buf[512]; | |
108 | struct hostent *he; | |
109 | const char *p, *r; | |
110 | int port; | |
111 | ||
112 | p = str; | |
113 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) | |
114 | return -1; | |
115 | saddr->sin_family = AF_INET; | |
116 | if (buf[0] == '\0') { | |
117 | saddr->sin_addr.s_addr = 0; | |
118 | } else { | |
cd390083 | 119 | if (qemu_isdigit(buf[0])) { |
63a01ef8 AL |
120 | if (!inet_aton(buf, &saddr->sin_addr)) |
121 | return -1; | |
122 | } else { | |
123 | if ((he = gethostbyname(buf)) == NULL) | |
124 | return - 1; | |
125 | saddr->sin_addr = *(struct in_addr *)he->h_addr; | |
126 | } | |
127 | } | |
128 | port = strtol(p, (char **)&r, 0); | |
129 | if (r == p) | |
130 | return -1; | |
131 | saddr->sin_port = htons(port); | |
132 | return 0; | |
133 | } | |
134 | ||
35277d14 | 135 | void qemu_format_nic_info_str(NetClientState *nc, uint8_t macaddr[6]) |
7cb7434b | 136 | { |
35277d14 | 137 | snprintf(nc->info_str, sizeof(nc->info_str), |
4dda4063 | 138 | "model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x", |
35277d14 | 139 | nc->model, |
7cb7434b AL |
140 | macaddr[0], macaddr[1], macaddr[2], |
141 | macaddr[3], macaddr[4], macaddr[5]); | |
142 | } | |
143 | ||
76d32cba GH |
144 | void qemu_macaddr_default_if_unset(MACAddr *macaddr) |
145 | { | |
146 | static int index = 0; | |
147 | static const MACAddr zero = { .a = { 0,0,0,0,0,0 } }; | |
148 | ||
149 | if (memcmp(macaddr, &zero, sizeof(zero)) != 0) | |
150 | return; | |
151 | macaddr->a[0] = 0x52; | |
152 | macaddr->a[1] = 0x54; | |
153 | macaddr->a[2] = 0x00; | |
154 | macaddr->a[3] = 0x12; | |
155 | macaddr->a[4] = 0x34; | |
156 | macaddr->a[5] = 0x56 + index++; | |
157 | } | |
158 | ||
d33d93b2 SH |
159 | /** |
160 | * Generate a name for net client | |
161 | * | |
c963530a | 162 | * Only net clients created with the legacy -net option and NICs need this. |
d33d93b2 | 163 | */ |
35277d14 | 164 | static char *assign_name(NetClientState *nc1, const char *model) |
676cff29 | 165 | { |
35277d14 | 166 | NetClientState *nc; |
676cff29 AL |
167 | int id = 0; |
168 | ||
35277d14 SH |
169 | QTAILQ_FOREACH(nc, &net_clients, next) { |
170 | if (nc == nc1) { | |
d33d93b2 | 171 | continue; |
5610c3aa | 172 | } |
c963530a | 173 | if (strcmp(nc->model, model) == 0) { |
53e51d85 MA |
174 | id++; |
175 | } | |
176 | } | |
177 | ||
4bf2c138 | 178 | return g_strdup_printf("%s.%d", model, id); |
676cff29 AL |
179 | } |
180 | ||
f7860455 JW |
181 | static void qemu_net_client_destructor(NetClientState *nc) |
182 | { | |
183 | g_free(nc); | |
184 | } | |
185 | ||
18a1541a JW |
186 | static void qemu_net_client_setup(NetClientState *nc, |
187 | NetClientInfo *info, | |
188 | NetClientState *peer, | |
189 | const char *model, | |
f7860455 JW |
190 | const char *name, |
191 | NetClientDestructor *destructor) | |
63a01ef8 | 192 | { |
35277d14 SH |
193 | nc->info = info; |
194 | nc->model = g_strdup(model); | |
45460d1a | 195 | if (name) { |
35277d14 | 196 | nc->name = g_strdup(name); |
45460d1a | 197 | } else { |
35277d14 | 198 | nc->name = assign_name(nc, model); |
45460d1a | 199 | } |
5610c3aa | 200 | |
ab5f3f84 SH |
201 | if (peer) { |
202 | assert(!peer->peer); | |
35277d14 SH |
203 | nc->peer = peer; |
204 | peer->peer = nc; | |
d80b9fc6 | 205 | } |
35277d14 | 206 | QTAILQ_INSERT_TAIL(&net_clients, nc, next); |
63a01ef8 | 207 | |
067404be | 208 | nc->incoming_queue = qemu_new_net_queue(nc); |
f7860455 | 209 | nc->destructor = destructor; |
18a1541a JW |
210 | } |
211 | ||
212 | NetClientState *qemu_new_net_client(NetClientInfo *info, | |
213 | NetClientState *peer, | |
214 | const char *model, | |
215 | const char *name) | |
216 | { | |
217 | NetClientState *nc; | |
218 | ||
219 | assert(info->size >= sizeof(NetClientState)); | |
220 | ||
221 | nc = g_malloc0(info->size); | |
f7860455 JW |
222 | qemu_net_client_setup(nc, info, peer, model, name, |
223 | qemu_net_client_destructor); | |
18a1541a | 224 | |
35277d14 | 225 | return nc; |
63a01ef8 AL |
226 | } |
227 | ||
ebef2c09 MM |
228 | NICState *qemu_new_nic(NetClientInfo *info, |
229 | NICConf *conf, | |
230 | const char *model, | |
231 | const char *name, | |
232 | void *opaque) | |
233 | { | |
1ceef9f2 | 234 | NetClientState **peers = conf->peers.ncs; |
ebef2c09 | 235 | NICState *nic; |
f6b26cf2 | 236 | int i, queues = MAX(1, conf->queues); |
ebef2c09 | 237 | |
2be64a68 | 238 | assert(info->type == NET_CLIENT_OPTIONS_KIND_NIC); |
ebef2c09 MM |
239 | assert(info->size >= sizeof(NICState)); |
240 | ||
f6b26cf2 JW |
241 | nic = g_malloc0(info->size + sizeof(NetClientState) * queues); |
242 | nic->ncs = (void *)nic + info->size; | |
ebef2c09 MM |
243 | nic->conf = conf; |
244 | nic->opaque = opaque; | |
245 | ||
f6b26cf2 JW |
246 | for (i = 0; i < queues; i++) { |
247 | qemu_net_client_setup(&nic->ncs[i], info, peers[i], model, name, | |
1ceef9f2 JW |
248 | NULL); |
249 | nic->ncs[i].queue_index = i; | |
250 | } | |
251 | ||
ebef2c09 MM |
252 | return nic; |
253 | } | |
254 | ||
1ceef9f2 JW |
255 | NetClientState *qemu_get_subqueue(NICState *nic, int queue_index) |
256 | { | |
f6b26cf2 | 257 | return nic->ncs + queue_index; |
1ceef9f2 JW |
258 | } |
259 | ||
b356f76d JW |
260 | NetClientState *qemu_get_queue(NICState *nic) |
261 | { | |
1ceef9f2 | 262 | return qemu_get_subqueue(nic, 0); |
b356f76d JW |
263 | } |
264 | ||
cc1f0f45 JW |
265 | NICState *qemu_get_nic(NetClientState *nc) |
266 | { | |
1ceef9f2 JW |
267 | NetClientState *nc0 = nc - nc->queue_index; |
268 | ||
f6b26cf2 | 269 | return (NICState *)((void *)nc0 - nc->info->size); |
cc1f0f45 JW |
270 | } |
271 | ||
272 | void *qemu_get_nic_opaque(NetClientState *nc) | |
273 | { | |
274 | NICState *nic = qemu_get_nic(nc); | |
275 | ||
276 | return nic->opaque; | |
277 | } | |
278 | ||
b20c6b9e | 279 | static void qemu_cleanup_net_client(NetClientState *nc) |
63a01ef8 | 280 | { |
35277d14 | 281 | QTAILQ_REMOVE(&net_clients, nc, next); |
63a01ef8 | 282 | |
cc2a9043 AF |
283 | if (nc->info->cleanup) { |
284 | nc->info->cleanup(nc); | |
285 | } | |
a083a89d | 286 | } |
5610c3aa | 287 | |
b20c6b9e | 288 | static void qemu_free_net_client(NetClientState *nc) |
a083a89d | 289 | { |
067404be JK |
290 | if (nc->incoming_queue) { |
291 | qemu_del_net_queue(nc->incoming_queue); | |
a005d073 | 292 | } |
35277d14 SH |
293 | if (nc->peer) { |
294 | nc->peer->peer = NULL; | |
a083a89d | 295 | } |
35277d14 SH |
296 | g_free(nc->name); |
297 | g_free(nc->model); | |
f7860455 JW |
298 | if (nc->destructor) { |
299 | nc->destructor(nc); | |
300 | } | |
63a01ef8 AL |
301 | } |
302 | ||
b20c6b9e | 303 | void qemu_del_net_client(NetClientState *nc) |
a083a89d | 304 | { |
1ceef9f2 JW |
305 | NetClientState *ncs[MAX_QUEUE_NUM]; |
306 | int queues, i; | |
307 | ||
308 | /* If the NetClientState belongs to a multiqueue backend, we will change all | |
309 | * other NetClientStates also. | |
310 | */ | |
311 | queues = qemu_find_net_clients_except(nc->name, ncs, | |
312 | NET_CLIENT_OPTIONS_KIND_NIC, | |
313 | MAX_QUEUE_NUM); | |
314 | assert(queues != 0); | |
315 | ||
a083a89d | 316 | /* If there is a peer NIC, delete and cleanup client, but do not free. */ |
35277d14 | 317 | if (nc->peer && nc->peer->info->type == NET_CLIENT_OPTIONS_KIND_NIC) { |
cc1f0f45 | 318 | NICState *nic = qemu_get_nic(nc->peer); |
a083a89d MT |
319 | if (nic->peer_deleted) { |
320 | return; | |
321 | } | |
322 | nic->peer_deleted = true; | |
1ceef9f2 JW |
323 | |
324 | for (i = 0; i < queues; i++) { | |
325 | ncs[i]->peer->link_down = true; | |
326 | } | |
327 | ||
35277d14 SH |
328 | if (nc->peer->info->link_status_changed) { |
329 | nc->peer->info->link_status_changed(nc->peer); | |
a083a89d | 330 | } |
1ceef9f2 JW |
331 | |
332 | for (i = 0; i < queues; i++) { | |
333 | qemu_cleanup_net_client(ncs[i]); | |
334 | } | |
335 | ||
a083a89d MT |
336 | return; |
337 | } | |
338 | ||
948ecf21 JW |
339 | assert(nc->info->type != NET_CLIENT_OPTIONS_KIND_NIC); |
340 | ||
1ceef9f2 JW |
341 | for (i = 0; i < queues; i++) { |
342 | qemu_cleanup_net_client(ncs[i]); | |
343 | qemu_free_net_client(ncs[i]); | |
344 | } | |
948ecf21 JW |
345 | } |
346 | ||
347 | void qemu_del_nic(NICState *nic) | |
348 | { | |
b8904921 | 349 | int i, queues = MAX(nic->conf->queues, 1); |
1ceef9f2 | 350 | |
a083a89d | 351 | /* If this is a peer NIC and peer has already been deleted, free it now. */ |
1ceef9f2 JW |
352 | if (nic->peer_deleted) { |
353 | for (i = 0; i < queues; i++) { | |
354 | qemu_free_net_client(qemu_get_subqueue(nic, i)->peer); | |
1a609520 JK |
355 | } |
356 | } | |
1a609520 | 357 | |
1ceef9f2 JW |
358 | for (i = queues - 1; i >= 0; i--) { |
359 | NetClientState *nc = qemu_get_subqueue(nic, i); | |
360 | ||
361 | qemu_cleanup_net_client(nc); | |
362 | qemu_free_net_client(nc); | |
363 | } | |
f6b26cf2 JW |
364 | |
365 | g_free(nic); | |
1a609520 JK |
366 | } |
367 | ||
57f9ef17 MM |
368 | void qemu_foreach_nic(qemu_nic_foreach func, void *opaque) |
369 | { | |
4e68f7a0 | 370 | NetClientState *nc; |
57f9ef17 | 371 | |
94878994 | 372 | QTAILQ_FOREACH(nc, &net_clients, next) { |
2be64a68 | 373 | if (nc->info->type == NET_CLIENT_OPTIONS_KIND_NIC) { |
1ceef9f2 JW |
374 | if (nc->queue_index == 0) { |
375 | func(qemu_get_nic(nc), opaque); | |
376 | } | |
57f9ef17 MM |
377 | } |
378 | } | |
57f9ef17 MM |
379 | } |
380 | ||
1f55ac45 VM |
381 | bool qemu_peer_has_ufo(NetClientState *nc) |
382 | { | |
383 | if (!nc->peer || !nc->peer->info->has_ufo) { | |
384 | return false; | |
385 | } | |
386 | ||
387 | return nc->peer->info->has_ufo(nc->peer); | |
388 | } | |
389 | ||
390 | bool qemu_peer_has_vnet_hdr(NetClientState *nc) | |
391 | { | |
392 | if (!nc->peer || !nc->peer->info->has_vnet_hdr) { | |
393 | return false; | |
394 | } | |
395 | ||
396 | return nc->peer->info->has_vnet_hdr(nc->peer); | |
397 | } | |
398 | ||
399 | bool qemu_peer_has_vnet_hdr_len(NetClientState *nc, int len) | |
400 | { | |
401 | if (!nc->peer || !nc->peer->info->has_vnet_hdr_len) { | |
402 | return false; | |
403 | } | |
404 | ||
405 | return nc->peer->info->has_vnet_hdr_len(nc->peer, len); | |
406 | } | |
407 | ||
408 | void qemu_peer_using_vnet_hdr(NetClientState *nc, bool enable) | |
409 | { | |
410 | if (!nc->peer || !nc->peer->info->using_vnet_hdr) { | |
411 | return; | |
412 | } | |
413 | ||
414 | nc->peer->info->using_vnet_hdr(nc->peer, enable); | |
415 | } | |
416 | ||
417 | void qemu_peer_set_offload(NetClientState *nc, int csum, int tso4, int tso6, | |
418 | int ecn, int ufo) | |
419 | { | |
420 | if (!nc->peer || !nc->peer->info->set_offload) { | |
421 | return; | |
422 | } | |
423 | ||
424 | nc->peer->info->set_offload(nc->peer, csum, tso4, tso6, ecn, ufo); | |
425 | } | |
426 | ||
427 | void qemu_peer_set_vnet_hdr_len(NetClientState *nc, int len) | |
428 | { | |
429 | if (!nc->peer || !nc->peer->info->set_vnet_hdr_len) { | |
430 | return; | |
431 | } | |
432 | ||
433 | nc->peer->info->set_vnet_hdr_len(nc->peer, len); | |
434 | } | |
435 | ||
4e68f7a0 | 436 | int qemu_can_send_packet(NetClientState *sender) |
63a01ef8 | 437 | { |
a005d073 | 438 | if (!sender->peer) { |
d80b9fc6 MM |
439 | return 1; |
440 | } | |
441 | ||
a005d073 SH |
442 | if (sender->peer->receive_disabled) { |
443 | return 0; | |
444 | } else if (sender->peer->info->can_receive && | |
445 | !sender->peer->info->can_receive(sender->peer)) { | |
446 | return 0; | |
63a01ef8 | 447 | } |
60c07d93 | 448 | return 1; |
63a01ef8 AL |
449 | } |
450 | ||
86a77c38 ZYW |
451 | ssize_t qemu_deliver_packet(NetClientState *sender, |
452 | unsigned flags, | |
453 | const uint8_t *data, | |
454 | size_t size, | |
455 | void *opaque) | |
9a6ecb30 | 456 | { |
35277d14 | 457 | NetClientState *nc = opaque; |
893379ef | 458 | ssize_t ret; |
9a6ecb30 | 459 | |
35277d14 | 460 | if (nc->link_down) { |
9a6ecb30 MM |
461 | return size; |
462 | } | |
463 | ||
35277d14 | 464 | if (nc->receive_disabled) { |
893379ef MM |
465 | return 0; |
466 | } | |
467 | ||
35277d14 SH |
468 | if (flags & QEMU_NET_PACKET_FLAG_RAW && nc->info->receive_raw) { |
469 | ret = nc->info->receive_raw(nc, data, size); | |
893379ef | 470 | } else { |
35277d14 | 471 | ret = nc->info->receive(nc, data, size); |
893379ef MM |
472 | } |
473 | ||
474 | if (ret == 0) { | |
35277d14 | 475 | nc->receive_disabled = 1; |
893379ef MM |
476 | }; |
477 | ||
478 | return ret; | |
9a6ecb30 MM |
479 | } |
480 | ||
35277d14 | 481 | void qemu_purge_queued_packets(NetClientState *nc) |
8cad5516 | 482 | { |
35277d14 | 483 | if (!nc->peer) { |
d80b9fc6 | 484 | return; |
9a6ecb30 | 485 | } |
d80b9fc6 | 486 | |
067404be | 487 | qemu_net_queue_purge(nc->peer->incoming_queue, nc); |
8cad5516 MM |
488 | } |
489 | ||
35277d14 | 490 | void qemu_flush_queued_packets(NetClientState *nc) |
e94667b9 | 491 | { |
35277d14 | 492 | nc->receive_disabled = 0; |
9a6ecb30 | 493 | |
199ee608 LR |
494 | if (nc->peer && nc->peer->info->type == NET_CLIENT_OPTIONS_KIND_HUBPORT) { |
495 | if (net_hub_flush(nc->peer)) { | |
496 | qemu_notify_event(); | |
497 | } | |
199ee608 | 498 | } |
067404be | 499 | if (qemu_net_queue_flush(nc->incoming_queue)) { |
987a9b48 PB |
500 | /* We emptied the queue successfully, signal to the IO thread to repoll |
501 | * the file descriptor (for tap, for example). | |
502 | */ | |
503 | qemu_notify_event(); | |
504 | } | |
e94667b9 MM |
505 | } |
506 | ||
4e68f7a0 | 507 | static ssize_t qemu_send_packet_async_with_flags(NetClientState *sender, |
ca77d175 MM |
508 | unsigned flags, |
509 | const uint8_t *buf, int size, | |
510 | NetPacketSent *sent_cb) | |
764a4d1d | 511 | { |
9a6ecb30 | 512 | NetQueue *queue; |
436e5e53 | 513 | |
63a01ef8 | 514 | #ifdef DEBUG_NET |
d80b9fc6 | 515 | printf("qemu_send_packet_async:\n"); |
63a01ef8 AL |
516 | hex_dump(stdout, buf, size); |
517 | #endif | |
f3b6c7fc | 518 | |
a005d073 | 519 | if (sender->link_down || !sender->peer) { |
9a6ecb30 MM |
520 | return size; |
521 | } | |
522 | ||
067404be | 523 | queue = sender->peer->incoming_queue; |
9a6ecb30 | 524 | |
ca77d175 MM |
525 | return qemu_net_queue_send(queue, sender, flags, buf, size, sent_cb); |
526 | } | |
527 | ||
4e68f7a0 | 528 | ssize_t qemu_send_packet_async(NetClientState *sender, |
ca77d175 MM |
529 | const uint8_t *buf, int size, |
530 | NetPacketSent *sent_cb) | |
531 | { | |
532 | return qemu_send_packet_async_with_flags(sender, QEMU_NET_PACKET_FLAG_NONE, | |
533 | buf, size, sent_cb); | |
f3b6c7fc MM |
534 | } |
535 | ||
35277d14 | 536 | void qemu_send_packet(NetClientState *nc, const uint8_t *buf, int size) |
f3b6c7fc | 537 | { |
35277d14 | 538 | qemu_send_packet_async(nc, buf, size, NULL); |
63a01ef8 AL |
539 | } |
540 | ||
35277d14 | 541 | ssize_t qemu_send_packet_raw(NetClientState *nc, const uint8_t *buf, int size) |
ca77d175 | 542 | { |
35277d14 | 543 | return qemu_send_packet_async_with_flags(nc, QEMU_NET_PACKET_FLAG_RAW, |
ca77d175 MM |
544 | buf, size, NULL); |
545 | } | |
546 | ||
35277d14 | 547 | static ssize_t nc_sendv_compat(NetClientState *nc, const struct iovec *iov, |
fbe78f4f AL |
548 | int iovcnt) |
549 | { | |
d32fcad3 | 550 | uint8_t buffer[NET_BUFSIZE]; |
ce053661 | 551 | size_t offset; |
fbe78f4f | 552 | |
dcf6f5e1 | 553 | offset = iov_to_buf(iov, iovcnt, 0, buffer, sizeof(buffer)); |
fbe78f4f | 554 | |
35277d14 | 555 | return nc->info->receive(nc, buffer, offset); |
fbe78f4f AL |
556 | } |
557 | ||
86a77c38 ZYW |
558 | ssize_t qemu_deliver_packet_iov(NetClientState *sender, |
559 | unsigned flags, | |
560 | const struct iovec *iov, | |
561 | int iovcnt, | |
562 | void *opaque) | |
9a6ecb30 | 563 | { |
35277d14 | 564 | NetClientState *nc = opaque; |
c67f5dc1 | 565 | int ret; |
9a6ecb30 | 566 | |
35277d14 | 567 | if (nc->link_down) { |
ce053661 | 568 | return iov_size(iov, iovcnt); |
9a6ecb30 MM |
569 | } |
570 | ||
c67f5dc1 SH |
571 | if (nc->receive_disabled) { |
572 | return 0; | |
573 | } | |
574 | ||
35277d14 | 575 | if (nc->info->receive_iov) { |
c67f5dc1 | 576 | ret = nc->info->receive_iov(nc, iov, iovcnt); |
9a6ecb30 | 577 | } else { |
c67f5dc1 SH |
578 | ret = nc_sendv_compat(nc, iov, iovcnt); |
579 | } | |
580 | ||
581 | if (ret == 0) { | |
582 | nc->receive_disabled = 1; | |
e94667b9 | 583 | } |
c67f5dc1 SH |
584 | |
585 | return ret; | |
e94667b9 MM |
586 | } |
587 | ||
4e68f7a0 | 588 | ssize_t qemu_sendv_packet_async(NetClientState *sender, |
f3b6c7fc MM |
589 | const struct iovec *iov, int iovcnt, |
590 | NetPacketSent *sent_cb) | |
e94667b9 | 591 | { |
9a6ecb30 MM |
592 | NetQueue *queue; |
593 | ||
a005d073 | 594 | if (sender->link_down || !sender->peer) { |
ce053661 | 595 | return iov_size(iov, iovcnt); |
e94667b9 MM |
596 | } |
597 | ||
067404be | 598 | queue = sender->peer->incoming_queue; |
9a6ecb30 | 599 | |
c0b8e49c MM |
600 | return qemu_net_queue_send_iov(queue, sender, |
601 | QEMU_NET_PACKET_FLAG_NONE, | |
602 | iov, iovcnt, sent_cb); | |
fbe78f4f AL |
603 | } |
604 | ||
f3b6c7fc | 605 | ssize_t |
35277d14 | 606 | qemu_sendv_packet(NetClientState *nc, const struct iovec *iov, int iovcnt) |
f3b6c7fc | 607 | { |
35277d14 | 608 | return qemu_sendv_packet_async(nc, iov, iovcnt, NULL); |
63a01ef8 AL |
609 | } |
610 | ||
4e68f7a0 | 611 | NetClientState *qemu_find_netdev(const char *id) |
5869c4d5 | 612 | { |
35277d14 | 613 | NetClientState *nc; |
5869c4d5 | 614 | |
35277d14 SH |
615 | QTAILQ_FOREACH(nc, &net_clients, next) { |
616 | if (nc->info->type == NET_CLIENT_OPTIONS_KIND_NIC) | |
85dde9a9 | 617 | continue; |
35277d14 SH |
618 | if (!strcmp(nc->name, id)) { |
619 | return nc; | |
5869c4d5 MM |
620 | } |
621 | } | |
622 | ||
623 | return NULL; | |
624 | } | |
625 | ||
6c51ae73 JW |
626 | int qemu_find_net_clients_except(const char *id, NetClientState **ncs, |
627 | NetClientOptionsKind type, int max) | |
628 | { | |
629 | NetClientState *nc; | |
630 | int ret = 0; | |
631 | ||
632 | QTAILQ_FOREACH(nc, &net_clients, next) { | |
633 | if (nc->info->type == type) { | |
634 | continue; | |
635 | } | |
636 | if (!strcmp(nc->name, id)) { | |
637 | if (ret < max) { | |
638 | ncs[ret] = nc; | |
639 | } | |
640 | ret++; | |
641 | } | |
642 | } | |
643 | ||
644 | return ret; | |
645 | } | |
646 | ||
7697079b AL |
647 | static int nic_get_free_idx(void) |
648 | { | |
649 | int index; | |
650 | ||
651 | for (index = 0; index < MAX_NICS; index++) | |
652 | if (!nd_table[index].used) | |
653 | return index; | |
654 | return -1; | |
655 | } | |
656 | ||
07caea31 MA |
657 | int qemu_show_nic_models(const char *arg, const char *const *models) |
658 | { | |
659 | int i; | |
660 | ||
c8057f95 | 661 | if (!arg || !is_help_option(arg)) { |
07caea31 | 662 | return 0; |
c8057f95 | 663 | } |
07caea31 MA |
664 | |
665 | fprintf(stderr, "qemu: Supported NIC models: "); | |
666 | for (i = 0 ; models[i]; i++) | |
667 | fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n'); | |
668 | return 1; | |
669 | } | |
670 | ||
d07f22c5 AL |
671 | void qemu_check_nic_model(NICInfo *nd, const char *model) |
672 | { | |
673 | const char *models[2]; | |
674 | ||
675 | models[0] = model; | |
676 | models[1] = NULL; | |
677 | ||
07caea31 MA |
678 | if (qemu_show_nic_models(nd->model, models)) |
679 | exit(0); | |
680 | if (qemu_find_nic_model(nd, models, model) < 0) | |
681 | exit(1); | |
d07f22c5 AL |
682 | } |
683 | ||
07caea31 MA |
684 | int qemu_find_nic_model(NICInfo *nd, const char * const *models, |
685 | const char *default_model) | |
d07f22c5 | 686 | { |
07caea31 | 687 | int i; |
d07f22c5 AL |
688 | |
689 | if (!nd->model) | |
7267c094 | 690 | nd->model = g_strdup(default_model); |
d07f22c5 | 691 | |
07caea31 MA |
692 | for (i = 0 ; models[i]; i++) { |
693 | if (strcmp(nd->model, models[i]) == 0) | |
694 | return i; | |
d07f22c5 AL |
695 | } |
696 | ||
6daf194d | 697 | error_report("Unsupported NIC model: %s", nd->model); |
07caea31 | 698 | return -1; |
d07f22c5 AL |
699 | } |
700 | ||
1a0c0958 | 701 | static int net_init_nic(const NetClientOptions *opts, const char *name, |
4e68f7a0 | 702 | NetClientState *peer) |
f83c6e10 MM |
703 | { |
704 | int idx; | |
705 | NICInfo *nd; | |
2456f36f LE |
706 | const NetLegacyNicOptions *nic; |
707 | ||
708 | assert(opts->kind == NET_CLIENT_OPTIONS_KIND_NIC); | |
709 | nic = opts->nic; | |
f83c6e10 MM |
710 | |
711 | idx = nic_get_free_idx(); | |
712 | if (idx == -1 || nb_nics >= MAX_NICS) { | |
1ecda02b | 713 | error_report("Too Many NICs"); |
f83c6e10 MM |
714 | return -1; |
715 | } | |
716 | ||
717 | nd = &nd_table[idx]; | |
718 | ||
719 | memset(nd, 0, sizeof(*nd)); | |
720 | ||
2456f36f LE |
721 | if (nic->has_netdev) { |
722 | nd->netdev = qemu_find_netdev(nic->netdev); | |
5869c4d5 | 723 | if (!nd->netdev) { |
2456f36f | 724 | error_report("netdev '%s' not found", nic->netdev); |
5869c4d5 MM |
725 | return -1; |
726 | } | |
727 | } else { | |
d33d93b2 SH |
728 | assert(peer); |
729 | nd->netdev = peer; | |
5869c4d5 | 730 | } |
c64f50d1 | 731 | nd->name = g_strdup(name); |
2456f36f LE |
732 | if (nic->has_model) { |
733 | nd->model = g_strdup(nic->model); | |
f83c6e10 | 734 | } |
2456f36f LE |
735 | if (nic->has_addr) { |
736 | nd->devaddr = g_strdup(nic->addr); | |
f83c6e10 MM |
737 | } |
738 | ||
2456f36f LE |
739 | if (nic->has_macaddr && |
740 | net_parse_macaddr(nd->macaddr.a, nic->macaddr) < 0) { | |
1ecda02b | 741 | error_report("invalid syntax for ethernet address"); |
f83c6e10 MM |
742 | return -1; |
743 | } | |
d60b20cf DK |
744 | if (nic->has_macaddr && |
745 | is_multicast_ether_addr(nd->macaddr.a)) { | |
746 | error_report("NIC cannot have multicast MAC address (odd 1st byte)"); | |
747 | return -1; | |
748 | } | |
6eed1856 | 749 | qemu_macaddr_default_if_unset(&nd->macaddr); |
f83c6e10 | 750 | |
2456f36f LE |
751 | if (nic->has_vectors) { |
752 | if (nic->vectors > 0x7ffffff) { | |
753 | error_report("invalid # of vectors: %"PRIu32, nic->vectors); | |
754 | return -1; | |
755 | } | |
756 | nd->nvectors = nic->vectors; | |
757 | } else { | |
758 | nd->nvectors = DEV_NVECTORS_UNSPECIFIED; | |
f83c6e10 MM |
759 | } |
760 | ||
761 | nd->used = 1; | |
f83c6e10 MM |
762 | nb_nics++; |
763 | ||
764 | return idx; | |
765 | } | |
766 | ||
6687b79d LE |
767 | |
768 | static int (* const net_client_init_fun[NET_CLIENT_OPTIONS_KIND_MAX])( | |
1a0c0958 | 769 | const NetClientOptions *opts, |
6687b79d | 770 | const char *name, |
4e68f7a0 | 771 | NetClientState *peer) = { |
f6c874e3 | 772 | [NET_CLIENT_OPTIONS_KIND_NIC] = net_init_nic, |
ec302ffd | 773 | #ifdef CONFIG_SLIRP |
f6c874e3 | 774 | [NET_CLIENT_OPTIONS_KIND_USER] = net_init_slirp, |
2944e4ec | 775 | #endif |
f6c874e3 SH |
776 | [NET_CLIENT_OPTIONS_KIND_TAP] = net_init_tap, |
777 | [NET_CLIENT_OPTIONS_KIND_SOCKET] = net_init_socket, | |
dd51058d | 778 | #ifdef CONFIG_VDE |
f6c874e3 | 779 | [NET_CLIENT_OPTIONS_KIND_VDE] = net_init_vde, |
58952137 VM |
780 | #endif |
781 | #ifdef CONFIG_NETMAP | |
782 | [NET_CLIENT_OPTIONS_KIND_NETMAP] = net_init_netmap, | |
dd51058d | 783 | #endif |
f6c874e3 | 784 | [NET_CLIENT_OPTIONS_KIND_DUMP] = net_init_dump, |
2944e4ec | 785 | #ifdef CONFIG_NET_BRIDGE |
f6c874e3 | 786 | [NET_CLIENT_OPTIONS_KIND_BRIDGE] = net_init_bridge, |
6687b79d | 787 | #endif |
f6c874e3 | 788 | [NET_CLIENT_OPTIONS_KIND_HUBPORT] = net_init_hubport, |
f83c6e10 MM |
789 | }; |
790 | ||
6687b79d | 791 | |
1a0c0958 | 792 | static int net_client_init1(const void *object, int is_netdev, Error **errp) |
f83c6e10 | 793 | { |
6687b79d LE |
794 | union { |
795 | const Netdev *netdev; | |
796 | const NetLegacy *net; | |
797 | } u; | |
798 | const NetClientOptions *opts; | |
6d952ebe | 799 | const char *name; |
f83c6e10 | 800 | |
5294e2c7 | 801 | if (is_netdev) { |
6687b79d LE |
802 | u.netdev = object; |
803 | opts = u.netdev->opts; | |
804 | name = u.netdev->id; | |
805 | ||
806 | switch (opts->kind) { | |
f6b134ac | 807 | #ifdef CONFIG_SLIRP |
6687b79d | 808 | case NET_CLIENT_OPTIONS_KIND_USER: |
f6b134ac | 809 | #endif |
6687b79d LE |
810 | case NET_CLIENT_OPTIONS_KIND_TAP: |
811 | case NET_CLIENT_OPTIONS_KIND_SOCKET: | |
f6b134ac | 812 | #ifdef CONFIG_VDE |
6687b79d LE |
813 | case NET_CLIENT_OPTIONS_KIND_VDE: |
814 | #endif | |
58952137 VM |
815 | #ifdef CONFIG_NETMAP |
816 | case NET_CLIENT_OPTIONS_KIND_NETMAP: | |
817 | #endif | |
6687b79d LE |
818 | #ifdef CONFIG_NET_BRIDGE |
819 | case NET_CLIENT_OPTIONS_KIND_BRIDGE: | |
f6b134ac | 820 | #endif |
f6c874e3 | 821 | case NET_CLIENT_OPTIONS_KIND_HUBPORT: |
6687b79d LE |
822 | break; |
823 | ||
824 | default: | |
4559a1db LC |
825 | error_set(errp, QERR_INVALID_PARAMETER_VALUE, "type", |
826 | "a netdev backend type"); | |
f6b134ac MM |
827 | return -1; |
828 | } | |
6687b79d LE |
829 | } else { |
830 | u.net = object; | |
831 | opts = u.net->opts; | |
832 | /* missing optional values have been initialized to "all bits zero" */ | |
833 | name = u.net->has_id ? u.net->id : u.net->name; | |
834 | } | |
f6b134ac | 835 | |
6687b79d | 836 | if (net_client_init_fun[opts->kind]) { |
4e68f7a0 | 837 | NetClientState *peer = NULL; |
6687b79d LE |
838 | |
839 | /* Do not add to a vlan if it's a -netdev or a nic with a netdev= | |
840 | * parameter. */ | |
841 | if (!is_netdev && | |
842 | (opts->kind != NET_CLIENT_OPTIONS_KIND_NIC || | |
843 | !opts->nic->has_netdev)) { | |
d33d93b2 | 844 | peer = net_hub_add_port(u.net->has_vlan ? u.net->vlan : 0, NULL); |
f6b134ac | 845 | } |
6687b79d | 846 | |
d33d93b2 | 847 | if (net_client_init_fun[opts->kind](opts, name, peer) < 0) { |
6687b79d LE |
848 | /* TODO push error reporting into init() methods */ |
849 | error_set(errp, QERR_DEVICE_INIT_FAILED, | |
850 | NetClientOptionsKind_lookup[opts->kind]); | |
f6b134ac MM |
851 | return -1; |
852 | } | |
853 | } | |
6687b79d LE |
854 | return 0; |
855 | } | |
856 | ||
f6b134ac | 857 | |
6687b79d LE |
858 | static void net_visit(Visitor *v, int is_netdev, void **object, Error **errp) |
859 | { | |
860 | if (is_netdev) { | |
861 | visit_type_Netdev(v, (Netdev **)object, NULL, errp); | |
862 | } else { | |
863 | visit_type_NetLegacy(v, (NetLegacy **)object, NULL, errp); | |
6d952ebe | 864 | } |
6687b79d | 865 | } |
6d952ebe | 866 | |
f6b134ac | 867 | |
6687b79d LE |
868 | int net_client_init(QemuOpts *opts, int is_netdev, Error **errp) |
869 | { | |
870 | void *object = NULL; | |
871 | Error *err = NULL; | |
872 | int ret = -1; | |
f83c6e10 | 873 | |
6687b79d LE |
874 | { |
875 | OptsVisitor *ov = opts_visitor_new(opts); | |
f6b134ac | 876 | |
6687b79d LE |
877 | net_visit(opts_get_visitor(ov), is_netdev, &object, &err); |
878 | opts_visitor_cleanup(ov); | |
f83c6e10 MM |
879 | } |
880 | ||
6687b79d | 881 | if (!err) { |
1a0c0958 | 882 | ret = net_client_init1(object, is_netdev, &err); |
6687b79d LE |
883 | } |
884 | ||
885 | if (object) { | |
886 | QapiDeallocVisitor *dv = qapi_dealloc_visitor_new(); | |
887 | ||
888 | net_visit(qapi_dealloc_get_visitor(dv), is_netdev, &object, NULL); | |
889 | qapi_dealloc_visitor_cleanup(dv); | |
890 | } | |
891 | ||
892 | error_propagate(errp, err); | |
893 | return ret; | |
f83c6e10 MM |
894 | } |
895 | ||
6687b79d | 896 | |
6f338c34 AL |
897 | static int net_host_check_device(const char *device) |
898 | { | |
899 | int i; | |
bb9ea79e | 900 | const char *valid_param_list[] = { "tap", "socket", "dump" |
2944e4ec SW |
901 | #ifdef CONFIG_NET_BRIDGE |
902 | , "bridge" | |
903 | #endif | |
6f338c34 AL |
904 | #ifdef CONFIG_SLIRP |
905 | ,"user" | |
906 | #endif | |
907 | #ifdef CONFIG_VDE | |
908 | ,"vde" | |
909 | #endif | |
910 | }; | |
dff7424d | 911 | for (i = 0; i < ARRAY_SIZE(valid_param_list); i++) { |
6f338c34 AL |
912 | if (!strncmp(valid_param_list[i], device, |
913 | strlen(valid_param_list[i]))) | |
914 | return 1; | |
915 | } | |
916 | ||
917 | return 0; | |
918 | } | |
919 | ||
f18c16de | 920 | void net_host_device_add(Monitor *mon, const QDict *qdict) |
6f338c34 | 921 | { |
f18c16de | 922 | const char *device = qdict_get_str(qdict, "device"); |
7f1c9d20 | 923 | const char *opts_str = qdict_get_try_str(qdict, "opts"); |
4559a1db | 924 | Error *local_err = NULL; |
7f1c9d20 | 925 | QemuOpts *opts; |
f18c16de | 926 | |
6f338c34 | 927 | if (!net_host_check_device(device)) { |
376253ec | 928 | monitor_printf(mon, "invalid host network device %s\n", device); |
6f338c34 AL |
929 | return; |
930 | } | |
7f1c9d20 | 931 | |
3329f07b | 932 | opts = qemu_opts_parse(qemu_find_opts("net"), opts_str ? opts_str : "", 0); |
7f1c9d20 | 933 | if (!opts) { |
7f1c9d20 MM |
934 | return; |
935 | } | |
936 | ||
937 | qemu_opt_set(opts, "type", device); | |
938 | ||
4559a1db | 939 | net_client_init(opts, 0, &local_err); |
84d18f06 | 940 | if (local_err) { |
4559a1db LC |
941 | qerror_report_err(local_err); |
942 | error_free(local_err); | |
5c8be678 AL |
943 | monitor_printf(mon, "adding host network device %s failed\n", device); |
944 | } | |
6f338c34 AL |
945 | } |
946 | ||
f18c16de | 947 | void net_host_device_remove(Monitor *mon, const QDict *qdict) |
6f338c34 | 948 | { |
35277d14 | 949 | NetClientState *nc; |
f18c16de LC |
950 | int vlan_id = qdict_get_int(qdict, "vlan_id"); |
951 | const char *device = qdict_get_str(qdict, "device"); | |
6f338c34 | 952 | |
35277d14 SH |
953 | nc = net_hub_find_client_by_name(vlan_id, device); |
954 | if (!nc) { | |
6f338c34 AL |
955 | return; |
956 | } | |
35277d14 | 957 | if (!net_host_check_device(nc->model)) { |
e8f1f9db AL |
958 | monitor_printf(mon, "invalid host network device %s\n", device); |
959 | return; | |
960 | } | |
b20c6b9e | 961 | qemu_del_net_client(nc); |
6f338c34 AL |
962 | } |
963 | ||
928059a3 LC |
964 | void netdev_add(QemuOpts *opts, Error **errp) |
965 | { | |
966 | net_client_init(opts, 1, errp); | |
967 | } | |
968 | ||
969 | int qmp_netdev_add(Monitor *mon, const QDict *qdict, QObject **ret) | |
ae82d324 | 970 | { |
4e89978e | 971 | Error *local_err = NULL; |
928059a3 | 972 | QemuOptsList *opts_list; |
ae82d324 | 973 | QemuOpts *opts; |
ae82d324 | 974 | |
928059a3 | 975 | opts_list = qemu_find_opts_err("netdev", &local_err); |
84d18f06 | 976 | if (local_err) { |
928059a3 | 977 | goto exit_err; |
ae82d324 MA |
978 | } |
979 | ||
928059a3 | 980 | opts = qemu_opts_from_qdict(opts_list, qdict, &local_err); |
84d18f06 | 981 | if (local_err) { |
928059a3 LC |
982 | goto exit_err; |
983 | } | |
984 | ||
985 | netdev_add(opts, &local_err); | |
84d18f06 | 986 | if (local_err) { |
410cbafe | 987 | qemu_opts_del(opts); |
928059a3 | 988 | goto exit_err; |
410cbafe YT |
989 | } |
990 | ||
928059a3 LC |
991 | return 0; |
992 | ||
993 | exit_err: | |
994 | qerror_report_err(local_err); | |
995 | error_free(local_err); | |
996 | return -1; | |
ae82d324 MA |
997 | } |
998 | ||
5f964155 | 999 | void qmp_netdev_del(const char *id, Error **errp) |
ae82d324 | 1000 | { |
35277d14 | 1001 | NetClientState *nc; |
645c9496 | 1002 | QemuOpts *opts; |
ae82d324 | 1003 | |
35277d14 SH |
1004 | nc = qemu_find_netdev(id); |
1005 | if (!nc) { | |
5f964155 LC |
1006 | error_set(errp, QERR_DEVICE_NOT_FOUND, id); |
1007 | return; | |
ae82d324 | 1008 | } |
5f964155 | 1009 | |
645c9496 SH |
1010 | opts = qemu_opts_find(qemu_find_opts_err("netdev", NULL), id); |
1011 | if (!opts) { | |
1012 | error_setg(errp, "Device '%s' is not a netdev", id); | |
1013 | return; | |
1014 | } | |
1015 | ||
b20c6b9e | 1016 | qemu_del_net_client(nc); |
645c9496 | 1017 | qemu_opts_del(opts); |
ae82d324 MA |
1018 | } |
1019 | ||
1a859593 | 1020 | void print_net_client(Monitor *mon, NetClientState *nc) |
44e798d3 | 1021 | { |
1ceef9f2 JW |
1022 | monitor_printf(mon, "%s: index=%d,type=%s,%s\n", nc->name, |
1023 | nc->queue_index, | |
1024 | NetClientOptionsKind_lookup[nc->info->type], | |
1025 | nc->info_str); | |
44e798d3 JK |
1026 | } |
1027 | ||
b1be4280 AK |
1028 | RxFilterInfoList *qmp_query_rx_filter(bool has_name, const char *name, |
1029 | Error **errp) | |
1030 | { | |
1031 | NetClientState *nc; | |
1032 | RxFilterInfoList *filter_list = NULL, *last_entry = NULL; | |
1033 | ||
1034 | QTAILQ_FOREACH(nc, &net_clients, next) { | |
1035 | RxFilterInfoList *entry; | |
1036 | RxFilterInfo *info; | |
1037 | ||
1038 | if (has_name && strcmp(nc->name, name) != 0) { | |
1039 | continue; | |
1040 | } | |
1041 | ||
1042 | /* only query rx-filter information of NIC */ | |
1043 | if (nc->info->type != NET_CLIENT_OPTIONS_KIND_NIC) { | |
1044 | if (has_name) { | |
1045 | error_setg(errp, "net client(%s) isn't a NIC", name); | |
1046 | break; | |
1047 | } | |
1048 | continue; | |
1049 | } | |
1050 | ||
1051 | if (nc->info->query_rx_filter) { | |
1052 | info = nc->info->query_rx_filter(nc); | |
1053 | entry = g_malloc0(sizeof(*entry)); | |
1054 | entry->value = info; | |
1055 | ||
1056 | if (!filter_list) { | |
1057 | filter_list = entry; | |
1058 | } else { | |
1059 | last_entry->next = entry; | |
1060 | } | |
1061 | last_entry = entry; | |
1062 | } else if (has_name) { | |
1063 | error_setg(errp, "net client(%s) doesn't support" | |
1064 | " rx-filter querying", name); | |
1065 | break; | |
1066 | } | |
1067 | } | |
1068 | ||
1069 | if (filter_list == NULL && !error_is_set(errp) && has_name) { | |
1070 | error_setg(errp, "invalid net client name: %s", name); | |
1071 | } | |
1072 | ||
1073 | return filter_list; | |
1074 | } | |
1075 | ||
84f2d0ea | 1076 | void do_info_network(Monitor *mon, const QDict *qdict) |
63a01ef8 | 1077 | { |
35277d14 | 1078 | NetClientState *nc, *peer; |
2be64a68 | 1079 | NetClientOptionsKind type; |
63a01ef8 | 1080 | |
1a859593 ZYW |
1081 | net_hub_info(mon); |
1082 | ||
35277d14 SH |
1083 | QTAILQ_FOREACH(nc, &net_clients, next) { |
1084 | peer = nc->peer; | |
1085 | type = nc->info->type; | |
5610c3aa | 1086 | |
1a859593 ZYW |
1087 | /* Skip if already printed in hub info */ |
1088 | if (net_hub_id_for_client(nc, NULL) == 0) { | |
1089 | continue; | |
5610c3aa | 1090 | } |
1a859593 | 1091 | |
2be64a68 | 1092 | if (!peer || type == NET_CLIENT_OPTIONS_KIND_NIC) { |
35277d14 | 1093 | print_net_client(mon, nc); |
19061e63 | 1094 | } /* else it's a netdev connected to a NIC, printed with the NIC */ |
2be64a68 | 1095 | if (peer && type == NET_CLIENT_OPTIONS_KIND_NIC) { |
1a859593 | 1096 | monitor_printf(mon, " \\ "); |
44e798d3 | 1097 | print_net_client(mon, peer); |
a0104e0e | 1098 | } |
a0104e0e | 1099 | } |
63a01ef8 AL |
1100 | } |
1101 | ||
4b37156c | 1102 | void qmp_set_link(const char *name, bool up, Error **errp) |
436e5e53 | 1103 | { |
1ceef9f2 JW |
1104 | NetClientState *ncs[MAX_QUEUE_NUM]; |
1105 | NetClientState *nc; | |
1106 | int queues, i; | |
436e5e53 | 1107 | |
1ceef9f2 JW |
1108 | queues = qemu_find_net_clients_except(name, ncs, |
1109 | NET_CLIENT_OPTIONS_KIND_MAX, | |
1110 | MAX_QUEUE_NUM); | |
1111 | ||
1112 | if (queues == 0) { | |
4b37156c LC |
1113 | error_set(errp, QERR_DEVICE_NOT_FOUND, name); |
1114 | return; | |
436e5e53 | 1115 | } |
1ceef9f2 | 1116 | nc = ncs[0]; |
436e5e53 | 1117 | |
1ceef9f2 JW |
1118 | for (i = 0; i < queues; i++) { |
1119 | ncs[i]->link_down = !up; | |
1120 | } | |
436e5e53 | 1121 | |
35277d14 SH |
1122 | if (nc->info->link_status_changed) { |
1123 | nc->info->link_status_changed(nc); | |
665a3b07 | 1124 | } |
ab1cbe1c | 1125 | |
02d38fcb VY |
1126 | if (nc->peer) { |
1127 | /* Change peer link only if the peer is NIC and then notify peer. | |
1128 | * If the peer is a HUBPORT or a backend, we do not change the | |
1129 | * link status. | |
1130 | * | |
1131 | * This behavior is compatible with qemu vlans where there could be | |
1132 | * multiple clients that can still communicate with each other in | |
1133 | * disconnected mode. For now maintain this compatibility. | |
1134 | */ | |
1135 | if (nc->peer->info->type == NET_CLIENT_OPTIONS_KIND_NIC) { | |
1136 | for (i = 0; i < queues; i++) { | |
1137 | ncs[i]->peer->link_down = !up; | |
1138 | } | |
1139 | } | |
1140 | if (nc->peer->info->link_status_changed) { | |
1141 | nc->peer->info->link_status_changed(nc->peer); | |
1142 | } | |
ab1cbe1c | 1143 | } |
436e5e53 AL |
1144 | } |
1145 | ||
63a01ef8 AL |
1146 | void net_cleanup(void) |
1147 | { | |
1ceef9f2 | 1148 | NetClientState *nc; |
577c4af9 | 1149 | |
1ceef9f2 JW |
1150 | /* We may del multiple entries during qemu_del_net_client(), |
1151 | * so QTAILQ_FOREACH_SAFE() is also not safe here. | |
1152 | */ | |
1153 | while (!QTAILQ_EMPTY(&net_clients)) { | |
1154 | nc = QTAILQ_FIRST(&net_clients); | |
948ecf21 JW |
1155 | if (nc->info->type == NET_CLIENT_OPTIONS_KIND_NIC) { |
1156 | qemu_del_nic(qemu_get_nic(nc)); | |
1157 | } else { | |
1158 | qemu_del_net_client(nc); | |
1159 | } | |
577c4af9 | 1160 | } |
63a01ef8 AL |
1161 | } |
1162 | ||
668680f7 | 1163 | void net_check_clients(void) |
63a01ef8 | 1164 | { |
35277d14 | 1165 | NetClientState *nc; |
48e2faf2 | 1166 | int i; |
63a01ef8 | 1167 | |
641f6eae PM |
1168 | /* Don't warn about the default network setup that you get if |
1169 | * no command line -net or -netdev options are specified. There | |
1170 | * are two cases that we would otherwise complain about: | |
1171 | * (1) board doesn't support a NIC but the implicit "-net nic" | |
1172 | * requested one | |
1173 | * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic" | |
1174 | * sets up a nic that isn't connected to anything. | |
1175 | */ | |
1176 | if (default_net) { | |
1177 | return; | |
1178 | } | |
1179 | ||
81017645 | 1180 | net_hub_check_clients(); |
ac60cc18 | 1181 | |
35277d14 SH |
1182 | QTAILQ_FOREACH(nc, &net_clients, next) { |
1183 | if (!nc->peer) { | |
efe32fdd | 1184 | fprintf(stderr, "Warning: %s %s has no peer\n", |
35277d14 SH |
1185 | nc->info->type == NET_CLIENT_OPTIONS_KIND_NIC ? |
1186 | "nic" : "netdev", nc->name); | |
efe32fdd MA |
1187 | } |
1188 | } | |
48e2faf2 PM |
1189 | |
1190 | /* Check that all NICs requested via -net nic actually got created. | |
1191 | * NICs created via -device don't need to be checked here because | |
1192 | * they are always instantiated. | |
1193 | */ | |
1194 | for (i = 0; i < MAX_NICS; i++) { | |
1195 | NICInfo *nd = &nd_table[i]; | |
1196 | if (nd->used && !nd->instantiated) { | |
1197 | fprintf(stderr, "Warning: requested NIC (%s, model %s) " | |
1198 | "was not created (not supported by this machine?)\n", | |
1199 | nd->name ? nd->name : "anonymous", | |
1200 | nd->model ? nd->model : "unspecified"); | |
1201 | } | |
1202 | } | |
63a01ef8 | 1203 | } |
dc1c9fe8 MM |
1204 | |
1205 | static int net_init_client(QemuOpts *opts, void *dummy) | |
1206 | { | |
4559a1db LC |
1207 | Error *local_err = NULL; |
1208 | ||
1209 | net_client_init(opts, 0, &local_err); | |
84d18f06 | 1210 | if (local_err) { |
4559a1db LC |
1211 | qerror_report_err(local_err); |
1212 | error_free(local_err); | |
c1671a08 | 1213 | return -1; |
4559a1db LC |
1214 | } |
1215 | ||
c1671a08 | 1216 | return 0; |
f6b134ac MM |
1217 | } |
1218 | ||
1219 | static int net_init_netdev(QemuOpts *opts, void *dummy) | |
1220 | { | |
4559a1db LC |
1221 | Error *local_err = NULL; |
1222 | int ret; | |
1223 | ||
1224 | ret = net_client_init(opts, 1, &local_err); | |
84d18f06 | 1225 | if (local_err) { |
4559a1db LC |
1226 | qerror_report_err(local_err); |
1227 | error_free(local_err); | |
1228 | return -1; | |
1229 | } | |
1230 | ||
1231 | return ret; | |
dc1c9fe8 MM |
1232 | } |
1233 | ||
1234 | int net_init_clients(void) | |
1235 | { | |
3329f07b GH |
1236 | QemuOptsList *net = qemu_find_opts("net"); |
1237 | ||
cb4522cc | 1238 | if (default_net) { |
dc1c9fe8 | 1239 | /* if no clients, we use a default config */ |
3329f07b | 1240 | qemu_opts_set(net, NULL, "type", "nic"); |
dc1c9fe8 | 1241 | #ifdef CONFIG_SLIRP |
3329f07b | 1242 | qemu_opts_set(net, NULL, "type", "user"); |
dc1c9fe8 MM |
1243 | #endif |
1244 | } | |
1245 | ||
94878994 | 1246 | QTAILQ_INIT(&net_clients); |
5610c3aa | 1247 | |
3329f07b | 1248 | if (qemu_opts_foreach(qemu_find_opts("netdev"), net_init_netdev, NULL, 1) == -1) |
f6b134ac MM |
1249 | return -1; |
1250 | ||
3329f07b | 1251 | if (qemu_opts_foreach(net, net_init_client, NULL, 1) == -1) { |
dc1c9fe8 MM |
1252 | return -1; |
1253 | } | |
1254 | ||
dc1c9fe8 MM |
1255 | return 0; |
1256 | } | |
1257 | ||
7f161aae | 1258 | int net_client_parse(QemuOptsList *opts_list, const char *optarg) |
dc1c9fe8 | 1259 | { |
a3a766e7 | 1260 | #if defined(CONFIG_SLIRP) |
68ac40d2 MM |
1261 | int ret; |
1262 | if (net_slirp_parse_legacy(opts_list, optarg, &ret)) { | |
dc1c9fe8 MM |
1263 | return ret; |
1264 | } | |
a3a766e7 | 1265 | #endif |
68ac40d2 | 1266 | |
8212c64f | 1267 | if (!qemu_opts_parse(opts_list, optarg, 1)) { |
dc1c9fe8 MM |
1268 | return -1; |
1269 | } | |
1270 | ||
cb4522cc | 1271 | default_net = 0; |
dc1c9fe8 MM |
1272 | return 0; |
1273 | } | |
7fc8d918 JW |
1274 | |
1275 | /* From FreeBSD */ | |
1276 | /* XXX: optimize */ | |
1277 | unsigned compute_mcast_idx(const uint8_t *ep) | |
1278 | { | |
1279 | uint32_t crc; | |
1280 | int carry, i, j; | |
1281 | uint8_t b; | |
1282 | ||
1283 | crc = 0xffffffff; | |
1284 | for (i = 0; i < 6; i++) { | |
1285 | b = *ep++; | |
1286 | for (j = 0; j < 8; j++) { | |
1287 | carry = ((crc & 0x80000000L) ? 1 : 0) ^ (b & 0x01); | |
1288 | crc <<= 1; | |
1289 | b >>= 1; | |
1290 | if (carry) { | |
1291 | crc = ((crc ^ POLYNOMIAL) | carry); | |
1292 | } | |
1293 | } | |
1294 | } | |
1295 | return crc >> 26; | |
1296 | } | |
4d454574 PB |
1297 | |
1298 | QemuOptsList qemu_netdev_opts = { | |
1299 | .name = "netdev", | |
1300 | .implied_opt_name = "type", | |
1301 | .head = QTAILQ_HEAD_INITIALIZER(qemu_netdev_opts.head), | |
1302 | .desc = { | |
1303 | /* | |
1304 | * no elements => accept any params | |
1305 | * validation will happen later | |
1306 | */ | |
1307 | { /* end of list */ } | |
1308 | }, | |
1309 | }; | |
1310 | ||
1311 | QemuOptsList qemu_net_opts = { | |
1312 | .name = "net", | |
1313 | .implied_opt_name = "type", | |
1314 | .head = QTAILQ_HEAD_INITIALIZER(qemu_net_opts.head), | |
1315 | .desc = { | |
1316 | /* | |
1317 | * no elements => accept any params | |
1318 | * validation will happen later | |
1319 | */ | |
1320 | { /* end of list */ } | |
1321 | }, | |
1322 | }; |