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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 | |
84007e81 HB |
52 | const char *host_net_devices[] = { |
53 | "tap", | |
54 | "socket", | |
55 | "dump", | |
56 | #ifdef CONFIG_NET_BRIDGE | |
57 | "bridge", | |
58 | #endif | |
59 | #ifdef CONFIG_SLIRP | |
60 | "user", | |
61 | #endif | |
62 | #ifdef CONFIG_VDE | |
63 | "vde", | |
64 | #endif | |
03ce5744 | 65 | "vhost-user", |
84007e81 HB |
66 | NULL, |
67 | }; | |
68 | ||
cb4522cc GH |
69 | int default_net = 1; |
70 | ||
63a01ef8 AL |
71 | /***********************************************************/ |
72 | /* network device redirectors */ | |
73 | ||
68ac40d2 | 74 | #if defined(DEBUG_NET) |
63a01ef8 AL |
75 | static void hex_dump(FILE *f, const uint8_t *buf, int size) |
76 | { | |
77 | int len, i, j, c; | |
78 | ||
79 | for(i=0;i<size;i+=16) { | |
80 | len = size - i; | |
81 | if (len > 16) | |
82 | len = 16; | |
83 | fprintf(f, "%08x ", i); | |
84 | for(j=0;j<16;j++) { | |
85 | if (j < len) | |
86 | fprintf(f, " %02x", buf[i+j]); | |
87 | else | |
88 | fprintf(f, " "); | |
89 | } | |
90 | fprintf(f, " "); | |
91 | for(j=0;j<len;j++) { | |
92 | c = buf[i+j]; | |
93 | if (c < ' ' || c > '~') | |
94 | c = '.'; | |
95 | fprintf(f, "%c", c); | |
96 | } | |
97 | fprintf(f, "\n"); | |
98 | } | |
99 | } | |
100 | #endif | |
101 | ||
63a01ef8 AL |
102 | static int get_str_sep(char *buf, int buf_size, const char **pp, int sep) |
103 | { | |
104 | const char *p, *p1; | |
105 | int len; | |
106 | p = *pp; | |
107 | p1 = strchr(p, sep); | |
108 | if (!p1) | |
109 | return -1; | |
110 | len = p1 - p; | |
111 | p1++; | |
112 | if (buf_size > 0) { | |
113 | if (len > buf_size - 1) | |
114 | len = buf_size - 1; | |
115 | memcpy(buf, p, len); | |
116 | buf[len] = '\0'; | |
117 | } | |
118 | *pp = p1; | |
119 | return 0; | |
120 | } | |
121 | ||
63a01ef8 AL |
122 | int parse_host_port(struct sockaddr_in *saddr, const char *str) |
123 | { | |
124 | char buf[512]; | |
125 | struct hostent *he; | |
126 | const char *p, *r; | |
127 | int port; | |
128 | ||
129 | p = str; | |
130 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) | |
131 | return -1; | |
132 | saddr->sin_family = AF_INET; | |
133 | if (buf[0] == '\0') { | |
134 | saddr->sin_addr.s_addr = 0; | |
135 | } else { | |
cd390083 | 136 | if (qemu_isdigit(buf[0])) { |
63a01ef8 AL |
137 | if (!inet_aton(buf, &saddr->sin_addr)) |
138 | return -1; | |
139 | } else { | |
140 | if ((he = gethostbyname(buf)) == NULL) | |
141 | return - 1; | |
142 | saddr->sin_addr = *(struct in_addr *)he->h_addr; | |
143 | } | |
144 | } | |
145 | port = strtol(p, (char **)&r, 0); | |
146 | if (r == p) | |
147 | return -1; | |
148 | saddr->sin_port = htons(port); | |
149 | return 0; | |
150 | } | |
151 | ||
35277d14 | 152 | void qemu_format_nic_info_str(NetClientState *nc, uint8_t macaddr[6]) |
7cb7434b | 153 | { |
35277d14 | 154 | snprintf(nc->info_str, sizeof(nc->info_str), |
4dda4063 | 155 | "model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x", |
35277d14 | 156 | nc->model, |
7cb7434b AL |
157 | macaddr[0], macaddr[1], macaddr[2], |
158 | macaddr[3], macaddr[4], macaddr[5]); | |
159 | } | |
160 | ||
76d32cba GH |
161 | void qemu_macaddr_default_if_unset(MACAddr *macaddr) |
162 | { | |
163 | static int index = 0; | |
164 | static const MACAddr zero = { .a = { 0,0,0,0,0,0 } }; | |
165 | ||
166 | if (memcmp(macaddr, &zero, sizeof(zero)) != 0) | |
167 | return; | |
168 | macaddr->a[0] = 0x52; | |
169 | macaddr->a[1] = 0x54; | |
170 | macaddr->a[2] = 0x00; | |
171 | macaddr->a[3] = 0x12; | |
172 | macaddr->a[4] = 0x34; | |
173 | macaddr->a[5] = 0x56 + index++; | |
174 | } | |
175 | ||
d33d93b2 SH |
176 | /** |
177 | * Generate a name for net client | |
178 | * | |
c963530a | 179 | * Only net clients created with the legacy -net option and NICs need this. |
d33d93b2 | 180 | */ |
35277d14 | 181 | static char *assign_name(NetClientState *nc1, const char *model) |
676cff29 | 182 | { |
35277d14 | 183 | NetClientState *nc; |
676cff29 AL |
184 | int id = 0; |
185 | ||
35277d14 SH |
186 | QTAILQ_FOREACH(nc, &net_clients, next) { |
187 | if (nc == nc1) { | |
d33d93b2 | 188 | continue; |
5610c3aa | 189 | } |
c963530a | 190 | if (strcmp(nc->model, model) == 0) { |
53e51d85 MA |
191 | id++; |
192 | } | |
193 | } | |
194 | ||
4bf2c138 | 195 | return g_strdup_printf("%s.%d", model, id); |
676cff29 AL |
196 | } |
197 | ||
f7860455 JW |
198 | static void qemu_net_client_destructor(NetClientState *nc) |
199 | { | |
200 | g_free(nc); | |
201 | } | |
202 | ||
18a1541a JW |
203 | static void qemu_net_client_setup(NetClientState *nc, |
204 | NetClientInfo *info, | |
205 | NetClientState *peer, | |
206 | const char *model, | |
f7860455 JW |
207 | const char *name, |
208 | NetClientDestructor *destructor) | |
63a01ef8 | 209 | { |
35277d14 SH |
210 | nc->info = info; |
211 | nc->model = g_strdup(model); | |
45460d1a | 212 | if (name) { |
35277d14 | 213 | nc->name = g_strdup(name); |
45460d1a | 214 | } else { |
35277d14 | 215 | nc->name = assign_name(nc, model); |
45460d1a | 216 | } |
5610c3aa | 217 | |
ab5f3f84 SH |
218 | if (peer) { |
219 | assert(!peer->peer); | |
35277d14 SH |
220 | nc->peer = peer; |
221 | peer->peer = nc; | |
d80b9fc6 | 222 | } |
35277d14 | 223 | QTAILQ_INSERT_TAIL(&net_clients, nc, next); |
63a01ef8 | 224 | |
067404be | 225 | nc->incoming_queue = qemu_new_net_queue(nc); |
f7860455 | 226 | nc->destructor = destructor; |
18a1541a JW |
227 | } |
228 | ||
229 | NetClientState *qemu_new_net_client(NetClientInfo *info, | |
230 | NetClientState *peer, | |
231 | const char *model, | |
232 | const char *name) | |
233 | { | |
234 | NetClientState *nc; | |
235 | ||
236 | assert(info->size >= sizeof(NetClientState)); | |
237 | ||
238 | nc = g_malloc0(info->size); | |
f7860455 JW |
239 | qemu_net_client_setup(nc, info, peer, model, name, |
240 | qemu_net_client_destructor); | |
18a1541a | 241 | |
35277d14 | 242 | return nc; |
63a01ef8 AL |
243 | } |
244 | ||
ebef2c09 MM |
245 | NICState *qemu_new_nic(NetClientInfo *info, |
246 | NICConf *conf, | |
247 | const char *model, | |
248 | const char *name, | |
249 | void *opaque) | |
250 | { | |
1ceef9f2 | 251 | NetClientState **peers = conf->peers.ncs; |
ebef2c09 | 252 | NICState *nic; |
575a1c0e | 253 | int i, queues = MAX(1, conf->peers.queues); |
ebef2c09 | 254 | |
2be64a68 | 255 | assert(info->type == NET_CLIENT_OPTIONS_KIND_NIC); |
ebef2c09 MM |
256 | assert(info->size >= sizeof(NICState)); |
257 | ||
f6b26cf2 JW |
258 | nic = g_malloc0(info->size + sizeof(NetClientState) * queues); |
259 | nic->ncs = (void *)nic + info->size; | |
ebef2c09 MM |
260 | nic->conf = conf; |
261 | nic->opaque = opaque; | |
262 | ||
f6b26cf2 JW |
263 | for (i = 0; i < queues; i++) { |
264 | qemu_net_client_setup(&nic->ncs[i], info, peers[i], model, name, | |
1ceef9f2 JW |
265 | NULL); |
266 | nic->ncs[i].queue_index = i; | |
267 | } | |
268 | ||
ebef2c09 MM |
269 | return nic; |
270 | } | |
271 | ||
1ceef9f2 JW |
272 | NetClientState *qemu_get_subqueue(NICState *nic, int queue_index) |
273 | { | |
f6b26cf2 | 274 | return nic->ncs + queue_index; |
1ceef9f2 JW |
275 | } |
276 | ||
b356f76d JW |
277 | NetClientState *qemu_get_queue(NICState *nic) |
278 | { | |
1ceef9f2 | 279 | return qemu_get_subqueue(nic, 0); |
b356f76d JW |
280 | } |
281 | ||
cc1f0f45 JW |
282 | NICState *qemu_get_nic(NetClientState *nc) |
283 | { | |
1ceef9f2 JW |
284 | NetClientState *nc0 = nc - nc->queue_index; |
285 | ||
f6b26cf2 | 286 | return (NICState *)((void *)nc0 - nc->info->size); |
cc1f0f45 JW |
287 | } |
288 | ||
289 | void *qemu_get_nic_opaque(NetClientState *nc) | |
290 | { | |
291 | NICState *nic = qemu_get_nic(nc); | |
292 | ||
293 | return nic->opaque; | |
294 | } | |
295 | ||
b20c6b9e | 296 | static void qemu_cleanup_net_client(NetClientState *nc) |
63a01ef8 | 297 | { |
35277d14 | 298 | QTAILQ_REMOVE(&net_clients, nc, next); |
63a01ef8 | 299 | |
cc2a9043 AF |
300 | if (nc->info->cleanup) { |
301 | nc->info->cleanup(nc); | |
302 | } | |
a083a89d | 303 | } |
5610c3aa | 304 | |
b20c6b9e | 305 | static void qemu_free_net_client(NetClientState *nc) |
a083a89d | 306 | { |
067404be JK |
307 | if (nc->incoming_queue) { |
308 | qemu_del_net_queue(nc->incoming_queue); | |
a005d073 | 309 | } |
35277d14 SH |
310 | if (nc->peer) { |
311 | nc->peer->peer = NULL; | |
a083a89d | 312 | } |
35277d14 SH |
313 | g_free(nc->name); |
314 | g_free(nc->model); | |
f7860455 JW |
315 | if (nc->destructor) { |
316 | nc->destructor(nc); | |
317 | } | |
63a01ef8 AL |
318 | } |
319 | ||
b20c6b9e | 320 | void qemu_del_net_client(NetClientState *nc) |
a083a89d | 321 | { |
1ceef9f2 JW |
322 | NetClientState *ncs[MAX_QUEUE_NUM]; |
323 | int queues, i; | |
324 | ||
325 | /* If the NetClientState belongs to a multiqueue backend, we will change all | |
326 | * other NetClientStates also. | |
327 | */ | |
328 | queues = qemu_find_net_clients_except(nc->name, ncs, | |
329 | NET_CLIENT_OPTIONS_KIND_NIC, | |
330 | MAX_QUEUE_NUM); | |
331 | assert(queues != 0); | |
332 | ||
a083a89d | 333 | /* If there is a peer NIC, delete and cleanup client, but do not free. */ |
35277d14 | 334 | if (nc->peer && nc->peer->info->type == NET_CLIENT_OPTIONS_KIND_NIC) { |
cc1f0f45 | 335 | NICState *nic = qemu_get_nic(nc->peer); |
a083a89d MT |
336 | if (nic->peer_deleted) { |
337 | return; | |
338 | } | |
339 | nic->peer_deleted = true; | |
1ceef9f2 JW |
340 | |
341 | for (i = 0; i < queues; i++) { | |
342 | ncs[i]->peer->link_down = true; | |
343 | } | |
344 | ||
35277d14 SH |
345 | if (nc->peer->info->link_status_changed) { |
346 | nc->peer->info->link_status_changed(nc->peer); | |
a083a89d | 347 | } |
1ceef9f2 JW |
348 | |
349 | for (i = 0; i < queues; i++) { | |
350 | qemu_cleanup_net_client(ncs[i]); | |
351 | } | |
352 | ||
a083a89d MT |
353 | return; |
354 | } | |
355 | ||
948ecf21 JW |
356 | assert(nc->info->type != NET_CLIENT_OPTIONS_KIND_NIC); |
357 | ||
1ceef9f2 JW |
358 | for (i = 0; i < queues; i++) { |
359 | qemu_cleanup_net_client(ncs[i]); | |
360 | qemu_free_net_client(ncs[i]); | |
361 | } | |
948ecf21 JW |
362 | } |
363 | ||
364 | void qemu_del_nic(NICState *nic) | |
365 | { | |
575a1c0e | 366 | int i, queues = MAX(nic->conf->peers.queues, 1); |
1ceef9f2 | 367 | |
a083a89d | 368 | /* If this is a peer NIC and peer has already been deleted, free it now. */ |
1ceef9f2 JW |
369 | if (nic->peer_deleted) { |
370 | for (i = 0; i < queues; i++) { | |
371 | qemu_free_net_client(qemu_get_subqueue(nic, i)->peer); | |
1a609520 JK |
372 | } |
373 | } | |
1a609520 | 374 | |
1ceef9f2 JW |
375 | for (i = queues - 1; i >= 0; i--) { |
376 | NetClientState *nc = qemu_get_subqueue(nic, i); | |
377 | ||
378 | qemu_cleanup_net_client(nc); | |
379 | qemu_free_net_client(nc); | |
380 | } | |
f6b26cf2 JW |
381 | |
382 | g_free(nic); | |
1a609520 JK |
383 | } |
384 | ||
57f9ef17 MM |
385 | void qemu_foreach_nic(qemu_nic_foreach func, void *opaque) |
386 | { | |
4e68f7a0 | 387 | NetClientState *nc; |
57f9ef17 | 388 | |
94878994 | 389 | QTAILQ_FOREACH(nc, &net_clients, next) { |
2be64a68 | 390 | if (nc->info->type == NET_CLIENT_OPTIONS_KIND_NIC) { |
1ceef9f2 JW |
391 | if (nc->queue_index == 0) { |
392 | func(qemu_get_nic(nc), opaque); | |
393 | } | |
57f9ef17 MM |
394 | } |
395 | } | |
57f9ef17 MM |
396 | } |
397 | ||
d6085e3a | 398 | bool qemu_has_ufo(NetClientState *nc) |
1f55ac45 | 399 | { |
d6085e3a | 400 | if (!nc || !nc->info->has_ufo) { |
1f55ac45 VM |
401 | return false; |
402 | } | |
403 | ||
d6085e3a | 404 | return nc->info->has_ufo(nc); |
1f55ac45 VM |
405 | } |
406 | ||
d6085e3a | 407 | bool qemu_has_vnet_hdr(NetClientState *nc) |
1f55ac45 | 408 | { |
d6085e3a | 409 | if (!nc || !nc->info->has_vnet_hdr) { |
1f55ac45 VM |
410 | return false; |
411 | } | |
412 | ||
d6085e3a | 413 | return nc->info->has_vnet_hdr(nc); |
1f55ac45 VM |
414 | } |
415 | ||
d6085e3a | 416 | bool qemu_has_vnet_hdr_len(NetClientState *nc, int len) |
1f55ac45 | 417 | { |
d6085e3a | 418 | if (!nc || !nc->info->has_vnet_hdr_len) { |
1f55ac45 VM |
419 | return false; |
420 | } | |
421 | ||
d6085e3a | 422 | return nc->info->has_vnet_hdr_len(nc, len); |
1f55ac45 VM |
423 | } |
424 | ||
d6085e3a | 425 | void qemu_using_vnet_hdr(NetClientState *nc, bool enable) |
1f55ac45 | 426 | { |
d6085e3a | 427 | if (!nc || !nc->info->using_vnet_hdr) { |
1f55ac45 VM |
428 | return; |
429 | } | |
430 | ||
d6085e3a | 431 | nc->info->using_vnet_hdr(nc, enable); |
1f55ac45 VM |
432 | } |
433 | ||
d6085e3a | 434 | void qemu_set_offload(NetClientState *nc, int csum, int tso4, int tso6, |
1f55ac45 VM |
435 | int ecn, int ufo) |
436 | { | |
d6085e3a | 437 | if (!nc || !nc->info->set_offload) { |
1f55ac45 VM |
438 | return; |
439 | } | |
440 | ||
d6085e3a | 441 | nc->info->set_offload(nc, csum, tso4, tso6, ecn, ufo); |
1f55ac45 VM |
442 | } |
443 | ||
d6085e3a | 444 | void qemu_set_vnet_hdr_len(NetClientState *nc, int len) |
1f55ac45 | 445 | { |
d6085e3a | 446 | if (!nc || !nc->info->set_vnet_hdr_len) { |
1f55ac45 VM |
447 | return; |
448 | } | |
449 | ||
d6085e3a | 450 | nc->info->set_vnet_hdr_len(nc, len); |
1f55ac45 VM |
451 | } |
452 | ||
4e68f7a0 | 453 | int qemu_can_send_packet(NetClientState *sender) |
63a01ef8 | 454 | { |
a005d073 | 455 | if (!sender->peer) { |
d80b9fc6 MM |
456 | return 1; |
457 | } | |
458 | ||
a005d073 SH |
459 | if (sender->peer->receive_disabled) { |
460 | return 0; | |
461 | } else if (sender->peer->info->can_receive && | |
462 | !sender->peer->info->can_receive(sender->peer)) { | |
463 | return 0; | |
63a01ef8 | 464 | } |
60c07d93 | 465 | return 1; |
63a01ef8 AL |
466 | } |
467 | ||
86a77c38 ZYW |
468 | ssize_t qemu_deliver_packet(NetClientState *sender, |
469 | unsigned flags, | |
470 | const uint8_t *data, | |
471 | size_t size, | |
472 | void *opaque) | |
9a6ecb30 | 473 | { |
35277d14 | 474 | NetClientState *nc = opaque; |
893379ef | 475 | ssize_t ret; |
9a6ecb30 | 476 | |
35277d14 | 477 | if (nc->link_down) { |
9a6ecb30 MM |
478 | return size; |
479 | } | |
480 | ||
35277d14 | 481 | if (nc->receive_disabled) { |
893379ef MM |
482 | return 0; |
483 | } | |
484 | ||
35277d14 SH |
485 | if (flags & QEMU_NET_PACKET_FLAG_RAW && nc->info->receive_raw) { |
486 | ret = nc->info->receive_raw(nc, data, size); | |
893379ef | 487 | } else { |
35277d14 | 488 | ret = nc->info->receive(nc, data, size); |
893379ef MM |
489 | } |
490 | ||
491 | if (ret == 0) { | |
35277d14 | 492 | nc->receive_disabled = 1; |
b9259652 | 493 | } |
893379ef MM |
494 | |
495 | return ret; | |
9a6ecb30 MM |
496 | } |
497 | ||
35277d14 | 498 | void qemu_purge_queued_packets(NetClientState *nc) |
8cad5516 | 499 | { |
35277d14 | 500 | if (!nc->peer) { |
d80b9fc6 | 501 | return; |
9a6ecb30 | 502 | } |
d80b9fc6 | 503 | |
067404be | 504 | qemu_net_queue_purge(nc->peer->incoming_queue, nc); |
8cad5516 MM |
505 | } |
506 | ||
35277d14 | 507 | void qemu_flush_queued_packets(NetClientState *nc) |
e94667b9 | 508 | { |
35277d14 | 509 | nc->receive_disabled = 0; |
9a6ecb30 | 510 | |
199ee608 LR |
511 | if (nc->peer && nc->peer->info->type == NET_CLIENT_OPTIONS_KIND_HUBPORT) { |
512 | if (net_hub_flush(nc->peer)) { | |
513 | qemu_notify_event(); | |
514 | } | |
199ee608 | 515 | } |
067404be | 516 | if (qemu_net_queue_flush(nc->incoming_queue)) { |
987a9b48 PB |
517 | /* We emptied the queue successfully, signal to the IO thread to repoll |
518 | * the file descriptor (for tap, for example). | |
519 | */ | |
520 | qemu_notify_event(); | |
521 | } | |
e94667b9 MM |
522 | } |
523 | ||
4e68f7a0 | 524 | static ssize_t qemu_send_packet_async_with_flags(NetClientState *sender, |
ca77d175 MM |
525 | unsigned flags, |
526 | const uint8_t *buf, int size, | |
527 | NetPacketSent *sent_cb) | |
764a4d1d | 528 | { |
9a6ecb30 | 529 | NetQueue *queue; |
436e5e53 | 530 | |
63a01ef8 | 531 | #ifdef DEBUG_NET |
d80b9fc6 | 532 | printf("qemu_send_packet_async:\n"); |
63a01ef8 AL |
533 | hex_dump(stdout, buf, size); |
534 | #endif | |
f3b6c7fc | 535 | |
a005d073 | 536 | if (sender->link_down || !sender->peer) { |
9a6ecb30 MM |
537 | return size; |
538 | } | |
539 | ||
067404be | 540 | queue = sender->peer->incoming_queue; |
9a6ecb30 | 541 | |
ca77d175 MM |
542 | return qemu_net_queue_send(queue, sender, flags, buf, size, sent_cb); |
543 | } | |
544 | ||
4e68f7a0 | 545 | ssize_t qemu_send_packet_async(NetClientState *sender, |
ca77d175 MM |
546 | const uint8_t *buf, int size, |
547 | NetPacketSent *sent_cb) | |
548 | { | |
549 | return qemu_send_packet_async_with_flags(sender, QEMU_NET_PACKET_FLAG_NONE, | |
550 | buf, size, sent_cb); | |
f3b6c7fc MM |
551 | } |
552 | ||
35277d14 | 553 | void qemu_send_packet(NetClientState *nc, const uint8_t *buf, int size) |
f3b6c7fc | 554 | { |
35277d14 | 555 | qemu_send_packet_async(nc, buf, size, NULL); |
63a01ef8 AL |
556 | } |
557 | ||
35277d14 | 558 | ssize_t qemu_send_packet_raw(NetClientState *nc, const uint8_t *buf, int size) |
ca77d175 | 559 | { |
35277d14 | 560 | return qemu_send_packet_async_with_flags(nc, QEMU_NET_PACKET_FLAG_RAW, |
ca77d175 MM |
561 | buf, size, NULL); |
562 | } | |
563 | ||
35277d14 | 564 | static ssize_t nc_sendv_compat(NetClientState *nc, const struct iovec *iov, |
fbe78f4f AL |
565 | int iovcnt) |
566 | { | |
d32fcad3 | 567 | uint8_t buffer[NET_BUFSIZE]; |
ce053661 | 568 | size_t offset; |
fbe78f4f | 569 | |
dcf6f5e1 | 570 | offset = iov_to_buf(iov, iovcnt, 0, buffer, sizeof(buffer)); |
fbe78f4f | 571 | |
35277d14 | 572 | return nc->info->receive(nc, buffer, offset); |
fbe78f4f AL |
573 | } |
574 | ||
86a77c38 ZYW |
575 | ssize_t qemu_deliver_packet_iov(NetClientState *sender, |
576 | unsigned flags, | |
577 | const struct iovec *iov, | |
578 | int iovcnt, | |
579 | void *opaque) | |
9a6ecb30 | 580 | { |
35277d14 | 581 | NetClientState *nc = opaque; |
c67f5dc1 | 582 | int ret; |
9a6ecb30 | 583 | |
35277d14 | 584 | if (nc->link_down) { |
ce053661 | 585 | return iov_size(iov, iovcnt); |
9a6ecb30 MM |
586 | } |
587 | ||
c67f5dc1 SH |
588 | if (nc->receive_disabled) { |
589 | return 0; | |
590 | } | |
591 | ||
35277d14 | 592 | if (nc->info->receive_iov) { |
c67f5dc1 | 593 | ret = nc->info->receive_iov(nc, iov, iovcnt); |
9a6ecb30 | 594 | } else { |
c67f5dc1 SH |
595 | ret = nc_sendv_compat(nc, iov, iovcnt); |
596 | } | |
597 | ||
598 | if (ret == 0) { | |
599 | nc->receive_disabled = 1; | |
e94667b9 | 600 | } |
c67f5dc1 SH |
601 | |
602 | return ret; | |
e94667b9 MM |
603 | } |
604 | ||
4e68f7a0 | 605 | ssize_t qemu_sendv_packet_async(NetClientState *sender, |
f3b6c7fc MM |
606 | const struct iovec *iov, int iovcnt, |
607 | NetPacketSent *sent_cb) | |
e94667b9 | 608 | { |
9a6ecb30 MM |
609 | NetQueue *queue; |
610 | ||
a005d073 | 611 | if (sender->link_down || !sender->peer) { |
ce053661 | 612 | return iov_size(iov, iovcnt); |
e94667b9 MM |
613 | } |
614 | ||
067404be | 615 | queue = sender->peer->incoming_queue; |
9a6ecb30 | 616 | |
c0b8e49c MM |
617 | return qemu_net_queue_send_iov(queue, sender, |
618 | QEMU_NET_PACKET_FLAG_NONE, | |
619 | iov, iovcnt, sent_cb); | |
fbe78f4f AL |
620 | } |
621 | ||
f3b6c7fc | 622 | ssize_t |
35277d14 | 623 | qemu_sendv_packet(NetClientState *nc, const struct iovec *iov, int iovcnt) |
f3b6c7fc | 624 | { |
35277d14 | 625 | return qemu_sendv_packet_async(nc, iov, iovcnt, NULL); |
63a01ef8 AL |
626 | } |
627 | ||
4e68f7a0 | 628 | NetClientState *qemu_find_netdev(const char *id) |
5869c4d5 | 629 | { |
35277d14 | 630 | NetClientState *nc; |
5869c4d5 | 631 | |
35277d14 SH |
632 | QTAILQ_FOREACH(nc, &net_clients, next) { |
633 | if (nc->info->type == NET_CLIENT_OPTIONS_KIND_NIC) | |
85dde9a9 | 634 | continue; |
35277d14 SH |
635 | if (!strcmp(nc->name, id)) { |
636 | return nc; | |
5869c4d5 MM |
637 | } |
638 | } | |
639 | ||
640 | return NULL; | |
641 | } | |
642 | ||
6c51ae73 JW |
643 | int qemu_find_net_clients_except(const char *id, NetClientState **ncs, |
644 | NetClientOptionsKind type, int max) | |
645 | { | |
646 | NetClientState *nc; | |
647 | int ret = 0; | |
648 | ||
649 | QTAILQ_FOREACH(nc, &net_clients, next) { | |
650 | if (nc->info->type == type) { | |
651 | continue; | |
652 | } | |
40d19394 | 653 | if (!id || !strcmp(nc->name, id)) { |
6c51ae73 JW |
654 | if (ret < max) { |
655 | ncs[ret] = nc; | |
656 | } | |
657 | ret++; | |
658 | } | |
659 | } | |
660 | ||
661 | return ret; | |
662 | } | |
663 | ||
7697079b AL |
664 | static int nic_get_free_idx(void) |
665 | { | |
666 | int index; | |
667 | ||
668 | for (index = 0; index < MAX_NICS; index++) | |
669 | if (!nd_table[index].used) | |
670 | return index; | |
671 | return -1; | |
672 | } | |
673 | ||
07caea31 MA |
674 | int qemu_show_nic_models(const char *arg, const char *const *models) |
675 | { | |
676 | int i; | |
677 | ||
c8057f95 | 678 | if (!arg || !is_help_option(arg)) { |
07caea31 | 679 | return 0; |
c8057f95 | 680 | } |
07caea31 MA |
681 | |
682 | fprintf(stderr, "qemu: Supported NIC models: "); | |
683 | for (i = 0 ; models[i]; i++) | |
684 | fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n'); | |
685 | return 1; | |
686 | } | |
687 | ||
d07f22c5 AL |
688 | void qemu_check_nic_model(NICInfo *nd, const char *model) |
689 | { | |
690 | const char *models[2]; | |
691 | ||
692 | models[0] = model; | |
693 | models[1] = NULL; | |
694 | ||
07caea31 MA |
695 | if (qemu_show_nic_models(nd->model, models)) |
696 | exit(0); | |
697 | if (qemu_find_nic_model(nd, models, model) < 0) | |
698 | exit(1); | |
d07f22c5 AL |
699 | } |
700 | ||
07caea31 MA |
701 | int qemu_find_nic_model(NICInfo *nd, const char * const *models, |
702 | const char *default_model) | |
d07f22c5 | 703 | { |
07caea31 | 704 | int i; |
d07f22c5 AL |
705 | |
706 | if (!nd->model) | |
7267c094 | 707 | nd->model = g_strdup(default_model); |
d07f22c5 | 708 | |
07caea31 MA |
709 | for (i = 0 ; models[i]; i++) { |
710 | if (strcmp(nd->model, models[i]) == 0) | |
711 | return i; | |
d07f22c5 AL |
712 | } |
713 | ||
6daf194d | 714 | error_report("Unsupported NIC model: %s", nd->model); |
07caea31 | 715 | return -1; |
d07f22c5 AL |
716 | } |
717 | ||
1a0c0958 | 718 | static int net_init_nic(const NetClientOptions *opts, const char *name, |
4e68f7a0 | 719 | NetClientState *peer) |
f83c6e10 MM |
720 | { |
721 | int idx; | |
722 | NICInfo *nd; | |
2456f36f LE |
723 | const NetLegacyNicOptions *nic; |
724 | ||
725 | assert(opts->kind == NET_CLIENT_OPTIONS_KIND_NIC); | |
726 | nic = opts->nic; | |
f83c6e10 MM |
727 | |
728 | idx = nic_get_free_idx(); | |
729 | if (idx == -1 || nb_nics >= MAX_NICS) { | |
1ecda02b | 730 | error_report("Too Many NICs"); |
f83c6e10 MM |
731 | return -1; |
732 | } | |
733 | ||
734 | nd = &nd_table[idx]; | |
735 | ||
736 | memset(nd, 0, sizeof(*nd)); | |
737 | ||
2456f36f LE |
738 | if (nic->has_netdev) { |
739 | nd->netdev = qemu_find_netdev(nic->netdev); | |
5869c4d5 | 740 | if (!nd->netdev) { |
2456f36f | 741 | error_report("netdev '%s' not found", nic->netdev); |
5869c4d5 MM |
742 | return -1; |
743 | } | |
744 | } else { | |
d33d93b2 SH |
745 | assert(peer); |
746 | nd->netdev = peer; | |
5869c4d5 | 747 | } |
c64f50d1 | 748 | nd->name = g_strdup(name); |
2456f36f LE |
749 | if (nic->has_model) { |
750 | nd->model = g_strdup(nic->model); | |
f83c6e10 | 751 | } |
2456f36f LE |
752 | if (nic->has_addr) { |
753 | nd->devaddr = g_strdup(nic->addr); | |
f83c6e10 MM |
754 | } |
755 | ||
2456f36f LE |
756 | if (nic->has_macaddr && |
757 | net_parse_macaddr(nd->macaddr.a, nic->macaddr) < 0) { | |
1ecda02b | 758 | error_report("invalid syntax for ethernet address"); |
f83c6e10 MM |
759 | return -1; |
760 | } | |
d60b20cf DK |
761 | if (nic->has_macaddr && |
762 | is_multicast_ether_addr(nd->macaddr.a)) { | |
763 | error_report("NIC cannot have multicast MAC address (odd 1st byte)"); | |
764 | return -1; | |
765 | } | |
6eed1856 | 766 | qemu_macaddr_default_if_unset(&nd->macaddr); |
f83c6e10 | 767 | |
2456f36f LE |
768 | if (nic->has_vectors) { |
769 | if (nic->vectors > 0x7ffffff) { | |
770 | error_report("invalid # of vectors: %"PRIu32, nic->vectors); | |
771 | return -1; | |
772 | } | |
773 | nd->nvectors = nic->vectors; | |
774 | } else { | |
775 | nd->nvectors = DEV_NVECTORS_UNSPECIFIED; | |
f83c6e10 MM |
776 | } |
777 | ||
778 | nd->used = 1; | |
f83c6e10 MM |
779 | nb_nics++; |
780 | ||
781 | return idx; | |
782 | } | |
783 | ||
6687b79d LE |
784 | |
785 | static int (* const net_client_init_fun[NET_CLIENT_OPTIONS_KIND_MAX])( | |
1a0c0958 | 786 | const NetClientOptions *opts, |
6687b79d | 787 | const char *name, |
4e68f7a0 | 788 | NetClientState *peer) = { |
f6c874e3 | 789 | [NET_CLIENT_OPTIONS_KIND_NIC] = net_init_nic, |
ec302ffd | 790 | #ifdef CONFIG_SLIRP |
f6c874e3 | 791 | [NET_CLIENT_OPTIONS_KIND_USER] = net_init_slirp, |
2944e4ec | 792 | #endif |
f6c874e3 SH |
793 | [NET_CLIENT_OPTIONS_KIND_TAP] = net_init_tap, |
794 | [NET_CLIENT_OPTIONS_KIND_SOCKET] = net_init_socket, | |
dd51058d | 795 | #ifdef CONFIG_VDE |
f6c874e3 | 796 | [NET_CLIENT_OPTIONS_KIND_VDE] = net_init_vde, |
58952137 VM |
797 | #endif |
798 | #ifdef CONFIG_NETMAP | |
799 | [NET_CLIENT_OPTIONS_KIND_NETMAP] = net_init_netmap, | |
dd51058d | 800 | #endif |
f6c874e3 | 801 | [NET_CLIENT_OPTIONS_KIND_DUMP] = net_init_dump, |
2944e4ec | 802 | #ifdef CONFIG_NET_BRIDGE |
f6c874e3 | 803 | [NET_CLIENT_OPTIONS_KIND_BRIDGE] = net_init_bridge, |
6687b79d | 804 | #endif |
f6c874e3 | 805 | [NET_CLIENT_OPTIONS_KIND_HUBPORT] = net_init_hubport, |
03ce5744 NN |
806 | #ifdef CONFIG_VHOST_NET_USED |
807 | [NET_CLIENT_OPTIONS_KIND_VHOST_USER] = net_init_vhost_user, | |
808 | #endif | |
015a33bd | 809 | #ifdef CONFIG_L2TPV3 |
3fb69aa1 AI |
810 | [NET_CLIENT_OPTIONS_KIND_L2TPV3] = net_init_l2tpv3, |
811 | #endif | |
f83c6e10 MM |
812 | }; |
813 | ||
6687b79d | 814 | |
1a0c0958 | 815 | static int net_client_init1(const void *object, int is_netdev, Error **errp) |
f83c6e10 | 816 | { |
6687b79d LE |
817 | union { |
818 | const Netdev *netdev; | |
819 | const NetLegacy *net; | |
820 | } u; | |
821 | const NetClientOptions *opts; | |
6d952ebe | 822 | const char *name; |
f83c6e10 | 823 | |
5294e2c7 | 824 | if (is_netdev) { |
6687b79d LE |
825 | u.netdev = object; |
826 | opts = u.netdev->opts; | |
827 | name = u.netdev->id; | |
828 | ||
829 | switch (opts->kind) { | |
f6b134ac | 830 | #ifdef CONFIG_SLIRP |
6687b79d | 831 | case NET_CLIENT_OPTIONS_KIND_USER: |
f6b134ac | 832 | #endif |
6687b79d LE |
833 | case NET_CLIENT_OPTIONS_KIND_TAP: |
834 | case NET_CLIENT_OPTIONS_KIND_SOCKET: | |
f6b134ac | 835 | #ifdef CONFIG_VDE |
6687b79d LE |
836 | case NET_CLIENT_OPTIONS_KIND_VDE: |
837 | #endif | |
58952137 VM |
838 | #ifdef CONFIG_NETMAP |
839 | case NET_CLIENT_OPTIONS_KIND_NETMAP: | |
840 | #endif | |
6687b79d LE |
841 | #ifdef CONFIG_NET_BRIDGE |
842 | case NET_CLIENT_OPTIONS_KIND_BRIDGE: | |
f6b134ac | 843 | #endif |
f6c874e3 | 844 | case NET_CLIENT_OPTIONS_KIND_HUBPORT: |
03ce5744 NN |
845 | #ifdef CONFIG_VHOST_NET_USED |
846 | case NET_CLIENT_OPTIONS_KIND_VHOST_USER: | |
3fb69aa1 | 847 | #endif |
015a33bd | 848 | #ifdef CONFIG_L2TPV3 |
3fb69aa1 | 849 | case NET_CLIENT_OPTIONS_KIND_L2TPV3: |
03ce5744 | 850 | #endif |
6687b79d LE |
851 | break; |
852 | ||
853 | default: | |
4559a1db LC |
854 | error_set(errp, QERR_INVALID_PARAMETER_VALUE, "type", |
855 | "a netdev backend type"); | |
f6b134ac MM |
856 | return -1; |
857 | } | |
6687b79d LE |
858 | } else { |
859 | u.net = object; | |
860 | opts = u.net->opts; | |
861 | /* missing optional values have been initialized to "all bits zero" */ | |
862 | name = u.net->has_id ? u.net->id : u.net->name; | |
863 | } | |
f6b134ac | 864 | |
6687b79d | 865 | if (net_client_init_fun[opts->kind]) { |
4e68f7a0 | 866 | NetClientState *peer = NULL; |
6687b79d LE |
867 | |
868 | /* Do not add to a vlan if it's a -netdev or a nic with a netdev= | |
869 | * parameter. */ | |
870 | if (!is_netdev && | |
871 | (opts->kind != NET_CLIENT_OPTIONS_KIND_NIC || | |
872 | !opts->nic->has_netdev)) { | |
d33d93b2 | 873 | peer = net_hub_add_port(u.net->has_vlan ? u.net->vlan : 0, NULL); |
f6b134ac | 874 | } |
6687b79d | 875 | |
d33d93b2 | 876 | if (net_client_init_fun[opts->kind](opts, name, peer) < 0) { |
6687b79d LE |
877 | /* TODO push error reporting into init() methods */ |
878 | error_set(errp, QERR_DEVICE_INIT_FAILED, | |
879 | NetClientOptionsKind_lookup[opts->kind]); | |
f6b134ac MM |
880 | return -1; |
881 | } | |
882 | } | |
6687b79d LE |
883 | return 0; |
884 | } | |
885 | ||
f6b134ac | 886 | |
6687b79d LE |
887 | static void net_visit(Visitor *v, int is_netdev, void **object, Error **errp) |
888 | { | |
889 | if (is_netdev) { | |
890 | visit_type_Netdev(v, (Netdev **)object, NULL, errp); | |
891 | } else { | |
892 | visit_type_NetLegacy(v, (NetLegacy **)object, NULL, errp); | |
6d952ebe | 893 | } |
6687b79d | 894 | } |
6d952ebe | 895 | |
f6b134ac | 896 | |
6687b79d LE |
897 | int net_client_init(QemuOpts *opts, int is_netdev, Error **errp) |
898 | { | |
899 | void *object = NULL; | |
900 | Error *err = NULL; | |
901 | int ret = -1; | |
f83c6e10 | 902 | |
6687b79d LE |
903 | { |
904 | OptsVisitor *ov = opts_visitor_new(opts); | |
f6b134ac | 905 | |
6687b79d LE |
906 | net_visit(opts_get_visitor(ov), is_netdev, &object, &err); |
907 | opts_visitor_cleanup(ov); | |
f83c6e10 MM |
908 | } |
909 | ||
6687b79d | 910 | if (!err) { |
1a0c0958 | 911 | ret = net_client_init1(object, is_netdev, &err); |
6687b79d LE |
912 | } |
913 | ||
914 | if (object) { | |
915 | QapiDeallocVisitor *dv = qapi_dealloc_visitor_new(); | |
916 | ||
917 | net_visit(qapi_dealloc_get_visitor(dv), is_netdev, &object, NULL); | |
918 | qapi_dealloc_visitor_cleanup(dv); | |
919 | } | |
920 | ||
921 | error_propagate(errp, err); | |
922 | return ret; | |
f83c6e10 MM |
923 | } |
924 | ||
6687b79d | 925 | |
6f338c34 AL |
926 | static int net_host_check_device(const char *device) |
927 | { | |
928 | int i; | |
84007e81 HB |
929 | for (i = 0; host_net_devices[i]; i++) { |
930 | if (!strncmp(host_net_devices[i], device, | |
931 | strlen(host_net_devices[i]))) { | |
6f338c34 | 932 | return 1; |
84007e81 | 933 | } |
6f338c34 AL |
934 | } |
935 | ||
936 | return 0; | |
937 | } | |
938 | ||
f18c16de | 939 | void net_host_device_add(Monitor *mon, const QDict *qdict) |
6f338c34 | 940 | { |
f18c16de | 941 | const char *device = qdict_get_str(qdict, "device"); |
7f1c9d20 | 942 | const char *opts_str = qdict_get_try_str(qdict, "opts"); |
4559a1db | 943 | Error *local_err = NULL; |
7f1c9d20 | 944 | QemuOpts *opts; |
f18c16de | 945 | |
6f338c34 | 946 | if (!net_host_check_device(device)) { |
376253ec | 947 | monitor_printf(mon, "invalid host network device %s\n", device); |
6f338c34 AL |
948 | return; |
949 | } | |
7f1c9d20 | 950 | |
3329f07b | 951 | opts = qemu_opts_parse(qemu_find_opts("net"), opts_str ? opts_str : "", 0); |
7f1c9d20 | 952 | if (!opts) { |
7f1c9d20 MM |
953 | return; |
954 | } | |
955 | ||
956 | qemu_opt_set(opts, "type", device); | |
957 | ||
4559a1db | 958 | net_client_init(opts, 0, &local_err); |
84d18f06 | 959 | if (local_err) { |
4559a1db LC |
960 | qerror_report_err(local_err); |
961 | error_free(local_err); | |
5c8be678 AL |
962 | monitor_printf(mon, "adding host network device %s failed\n", device); |
963 | } | |
6f338c34 AL |
964 | } |
965 | ||
f18c16de | 966 | void net_host_device_remove(Monitor *mon, const QDict *qdict) |
6f338c34 | 967 | { |
35277d14 | 968 | NetClientState *nc; |
f18c16de LC |
969 | int vlan_id = qdict_get_int(qdict, "vlan_id"); |
970 | const char *device = qdict_get_str(qdict, "device"); | |
6f338c34 | 971 | |
35277d14 SH |
972 | nc = net_hub_find_client_by_name(vlan_id, device); |
973 | if (!nc) { | |
86e11772 HB |
974 | error_report("Host network device '%s' on hub '%d' not found", |
975 | device, vlan_id); | |
6f338c34 AL |
976 | return; |
977 | } | |
35277d14 | 978 | if (!net_host_check_device(nc->model)) { |
86e11772 | 979 | error_report("invalid host network device '%s'", device); |
e8f1f9db AL |
980 | return; |
981 | } | |
b20c6b9e | 982 | qemu_del_net_client(nc); |
6f338c34 AL |
983 | } |
984 | ||
928059a3 LC |
985 | void netdev_add(QemuOpts *opts, Error **errp) |
986 | { | |
987 | net_client_init(opts, 1, errp); | |
988 | } | |
989 | ||
990 | int qmp_netdev_add(Monitor *mon, const QDict *qdict, QObject **ret) | |
ae82d324 | 991 | { |
4e89978e | 992 | Error *local_err = NULL; |
928059a3 | 993 | QemuOptsList *opts_list; |
ae82d324 | 994 | QemuOpts *opts; |
ae82d324 | 995 | |
928059a3 | 996 | opts_list = qemu_find_opts_err("netdev", &local_err); |
84d18f06 | 997 | if (local_err) { |
928059a3 | 998 | goto exit_err; |
ae82d324 MA |
999 | } |
1000 | ||
928059a3 | 1001 | opts = qemu_opts_from_qdict(opts_list, qdict, &local_err); |
84d18f06 | 1002 | if (local_err) { |
928059a3 LC |
1003 | goto exit_err; |
1004 | } | |
1005 | ||
1006 | netdev_add(opts, &local_err); | |
84d18f06 | 1007 | if (local_err) { |
410cbafe | 1008 | qemu_opts_del(opts); |
928059a3 | 1009 | goto exit_err; |
410cbafe YT |
1010 | } |
1011 | ||
928059a3 LC |
1012 | return 0; |
1013 | ||
1014 | exit_err: | |
1015 | qerror_report_err(local_err); | |
1016 | error_free(local_err); | |
1017 | return -1; | |
ae82d324 MA |
1018 | } |
1019 | ||
5f964155 | 1020 | void qmp_netdev_del(const char *id, Error **errp) |
ae82d324 | 1021 | { |
35277d14 | 1022 | NetClientState *nc; |
645c9496 | 1023 | QemuOpts *opts; |
ae82d324 | 1024 | |
35277d14 SH |
1025 | nc = qemu_find_netdev(id); |
1026 | if (!nc) { | |
5f964155 LC |
1027 | error_set(errp, QERR_DEVICE_NOT_FOUND, id); |
1028 | return; | |
ae82d324 | 1029 | } |
5f964155 | 1030 | |
645c9496 SH |
1031 | opts = qemu_opts_find(qemu_find_opts_err("netdev", NULL), id); |
1032 | if (!opts) { | |
1033 | error_setg(errp, "Device '%s' is not a netdev", id); | |
1034 | return; | |
1035 | } | |
1036 | ||
b20c6b9e | 1037 | qemu_del_net_client(nc); |
645c9496 | 1038 | qemu_opts_del(opts); |
ae82d324 MA |
1039 | } |
1040 | ||
1a859593 | 1041 | void print_net_client(Monitor *mon, NetClientState *nc) |
44e798d3 | 1042 | { |
1ceef9f2 JW |
1043 | monitor_printf(mon, "%s: index=%d,type=%s,%s\n", nc->name, |
1044 | nc->queue_index, | |
1045 | NetClientOptionsKind_lookup[nc->info->type], | |
1046 | nc->info_str); | |
44e798d3 JK |
1047 | } |
1048 | ||
b1be4280 AK |
1049 | RxFilterInfoList *qmp_query_rx_filter(bool has_name, const char *name, |
1050 | Error **errp) | |
1051 | { | |
1052 | NetClientState *nc; | |
1053 | RxFilterInfoList *filter_list = NULL, *last_entry = NULL; | |
1054 | ||
1055 | QTAILQ_FOREACH(nc, &net_clients, next) { | |
1056 | RxFilterInfoList *entry; | |
1057 | RxFilterInfo *info; | |
1058 | ||
1059 | if (has_name && strcmp(nc->name, name) != 0) { | |
1060 | continue; | |
1061 | } | |
1062 | ||
1063 | /* only query rx-filter information of NIC */ | |
1064 | if (nc->info->type != NET_CLIENT_OPTIONS_KIND_NIC) { | |
1065 | if (has_name) { | |
1066 | error_setg(errp, "net client(%s) isn't a NIC", name); | |
9083da1d | 1067 | return NULL; |
b1be4280 AK |
1068 | } |
1069 | continue; | |
1070 | } | |
1071 | ||
1072 | if (nc->info->query_rx_filter) { | |
1073 | info = nc->info->query_rx_filter(nc); | |
1074 | entry = g_malloc0(sizeof(*entry)); | |
1075 | entry->value = info; | |
1076 | ||
1077 | if (!filter_list) { | |
1078 | filter_list = entry; | |
1079 | } else { | |
1080 | last_entry->next = entry; | |
1081 | } | |
1082 | last_entry = entry; | |
1083 | } else if (has_name) { | |
1084 | error_setg(errp, "net client(%s) doesn't support" | |
1085 | " rx-filter querying", name); | |
9083da1d | 1086 | return NULL; |
b1be4280 | 1087 | } |
638fb141 MA |
1088 | |
1089 | if (has_name) { | |
1090 | break; | |
1091 | } | |
b1be4280 AK |
1092 | } |
1093 | ||
9083da1d | 1094 | if (filter_list == NULL && has_name) { |
b1be4280 AK |
1095 | error_setg(errp, "invalid net client name: %s", name); |
1096 | } | |
1097 | ||
1098 | return filter_list; | |
1099 | } | |
1100 | ||
84f2d0ea | 1101 | void do_info_network(Monitor *mon, const QDict *qdict) |
63a01ef8 | 1102 | { |
35277d14 | 1103 | NetClientState *nc, *peer; |
2be64a68 | 1104 | NetClientOptionsKind type; |
63a01ef8 | 1105 | |
1a859593 ZYW |
1106 | net_hub_info(mon); |
1107 | ||
35277d14 SH |
1108 | QTAILQ_FOREACH(nc, &net_clients, next) { |
1109 | peer = nc->peer; | |
1110 | type = nc->info->type; | |
5610c3aa | 1111 | |
1a859593 ZYW |
1112 | /* Skip if already printed in hub info */ |
1113 | if (net_hub_id_for_client(nc, NULL) == 0) { | |
1114 | continue; | |
5610c3aa | 1115 | } |
1a859593 | 1116 | |
2be64a68 | 1117 | if (!peer || type == NET_CLIENT_OPTIONS_KIND_NIC) { |
35277d14 | 1118 | print_net_client(mon, nc); |
19061e63 | 1119 | } /* else it's a netdev connected to a NIC, printed with the NIC */ |
2be64a68 | 1120 | if (peer && type == NET_CLIENT_OPTIONS_KIND_NIC) { |
1a859593 | 1121 | monitor_printf(mon, " \\ "); |
44e798d3 | 1122 | print_net_client(mon, peer); |
a0104e0e | 1123 | } |
a0104e0e | 1124 | } |
63a01ef8 AL |
1125 | } |
1126 | ||
4b37156c | 1127 | void qmp_set_link(const char *name, bool up, Error **errp) |
436e5e53 | 1128 | { |
1ceef9f2 JW |
1129 | NetClientState *ncs[MAX_QUEUE_NUM]; |
1130 | NetClientState *nc; | |
1131 | int queues, i; | |
436e5e53 | 1132 | |
1ceef9f2 JW |
1133 | queues = qemu_find_net_clients_except(name, ncs, |
1134 | NET_CLIENT_OPTIONS_KIND_MAX, | |
1135 | MAX_QUEUE_NUM); | |
1136 | ||
1137 | if (queues == 0) { | |
4b37156c LC |
1138 | error_set(errp, QERR_DEVICE_NOT_FOUND, name); |
1139 | return; | |
436e5e53 | 1140 | } |
1ceef9f2 | 1141 | nc = ncs[0]; |
436e5e53 | 1142 | |
1ceef9f2 JW |
1143 | for (i = 0; i < queues; i++) { |
1144 | ncs[i]->link_down = !up; | |
1145 | } | |
436e5e53 | 1146 | |
35277d14 SH |
1147 | if (nc->info->link_status_changed) { |
1148 | nc->info->link_status_changed(nc); | |
665a3b07 | 1149 | } |
ab1cbe1c | 1150 | |
02d38fcb VY |
1151 | if (nc->peer) { |
1152 | /* Change peer link only if the peer is NIC and then notify peer. | |
1153 | * If the peer is a HUBPORT or a backend, we do not change the | |
1154 | * link status. | |
1155 | * | |
1156 | * This behavior is compatible with qemu vlans where there could be | |
1157 | * multiple clients that can still communicate with each other in | |
1158 | * disconnected mode. For now maintain this compatibility. | |
1159 | */ | |
1160 | if (nc->peer->info->type == NET_CLIENT_OPTIONS_KIND_NIC) { | |
1161 | for (i = 0; i < queues; i++) { | |
1162 | ncs[i]->peer->link_down = !up; | |
1163 | } | |
1164 | } | |
1165 | if (nc->peer->info->link_status_changed) { | |
1166 | nc->peer->info->link_status_changed(nc->peer); | |
1167 | } | |
ab1cbe1c | 1168 | } |
436e5e53 AL |
1169 | } |
1170 | ||
63a01ef8 AL |
1171 | void net_cleanup(void) |
1172 | { | |
1ceef9f2 | 1173 | NetClientState *nc; |
577c4af9 | 1174 | |
1ceef9f2 JW |
1175 | /* We may del multiple entries during qemu_del_net_client(), |
1176 | * so QTAILQ_FOREACH_SAFE() is also not safe here. | |
1177 | */ | |
1178 | while (!QTAILQ_EMPTY(&net_clients)) { | |
1179 | nc = QTAILQ_FIRST(&net_clients); | |
948ecf21 JW |
1180 | if (nc->info->type == NET_CLIENT_OPTIONS_KIND_NIC) { |
1181 | qemu_del_nic(qemu_get_nic(nc)); | |
1182 | } else { | |
1183 | qemu_del_net_client(nc); | |
1184 | } | |
577c4af9 | 1185 | } |
63a01ef8 AL |
1186 | } |
1187 | ||
668680f7 | 1188 | void net_check_clients(void) |
63a01ef8 | 1189 | { |
35277d14 | 1190 | NetClientState *nc; |
48e2faf2 | 1191 | int i; |
63a01ef8 | 1192 | |
641f6eae PM |
1193 | /* Don't warn about the default network setup that you get if |
1194 | * no command line -net or -netdev options are specified. There | |
1195 | * are two cases that we would otherwise complain about: | |
1196 | * (1) board doesn't support a NIC but the implicit "-net nic" | |
1197 | * requested one | |
1198 | * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic" | |
1199 | * sets up a nic that isn't connected to anything. | |
1200 | */ | |
1201 | if (default_net) { | |
1202 | return; | |
1203 | } | |
1204 | ||
81017645 | 1205 | net_hub_check_clients(); |
ac60cc18 | 1206 | |
35277d14 SH |
1207 | QTAILQ_FOREACH(nc, &net_clients, next) { |
1208 | if (!nc->peer) { | |
efe32fdd | 1209 | fprintf(stderr, "Warning: %s %s has no peer\n", |
35277d14 SH |
1210 | nc->info->type == NET_CLIENT_OPTIONS_KIND_NIC ? |
1211 | "nic" : "netdev", nc->name); | |
efe32fdd MA |
1212 | } |
1213 | } | |
48e2faf2 PM |
1214 | |
1215 | /* Check that all NICs requested via -net nic actually got created. | |
1216 | * NICs created via -device don't need to be checked here because | |
1217 | * they are always instantiated. | |
1218 | */ | |
1219 | for (i = 0; i < MAX_NICS; i++) { | |
1220 | NICInfo *nd = &nd_table[i]; | |
1221 | if (nd->used && !nd->instantiated) { | |
1222 | fprintf(stderr, "Warning: requested NIC (%s, model %s) " | |
1223 | "was not created (not supported by this machine?)\n", | |
1224 | nd->name ? nd->name : "anonymous", | |
1225 | nd->model ? nd->model : "unspecified"); | |
1226 | } | |
1227 | } | |
63a01ef8 | 1228 | } |
dc1c9fe8 MM |
1229 | |
1230 | static int net_init_client(QemuOpts *opts, void *dummy) | |
1231 | { | |
4559a1db LC |
1232 | Error *local_err = NULL; |
1233 | ||
1234 | net_client_init(opts, 0, &local_err); | |
84d18f06 | 1235 | if (local_err) { |
4559a1db LC |
1236 | qerror_report_err(local_err); |
1237 | error_free(local_err); | |
c1671a08 | 1238 | return -1; |
4559a1db LC |
1239 | } |
1240 | ||
c1671a08 | 1241 | return 0; |
f6b134ac MM |
1242 | } |
1243 | ||
1244 | static int net_init_netdev(QemuOpts *opts, void *dummy) | |
1245 | { | |
4559a1db LC |
1246 | Error *local_err = NULL; |
1247 | int ret; | |
1248 | ||
1249 | ret = net_client_init(opts, 1, &local_err); | |
84d18f06 | 1250 | if (local_err) { |
4559a1db LC |
1251 | qerror_report_err(local_err); |
1252 | error_free(local_err); | |
1253 | return -1; | |
1254 | } | |
1255 | ||
1256 | return ret; | |
dc1c9fe8 MM |
1257 | } |
1258 | ||
1259 | int net_init_clients(void) | |
1260 | { | |
3329f07b GH |
1261 | QemuOptsList *net = qemu_find_opts("net"); |
1262 | ||
cb4522cc | 1263 | if (default_net) { |
dc1c9fe8 | 1264 | /* if no clients, we use a default config */ |
3329f07b | 1265 | qemu_opts_set(net, NULL, "type", "nic"); |
dc1c9fe8 | 1266 | #ifdef CONFIG_SLIRP |
3329f07b | 1267 | qemu_opts_set(net, NULL, "type", "user"); |
dc1c9fe8 MM |
1268 | #endif |
1269 | } | |
1270 | ||
94878994 | 1271 | QTAILQ_INIT(&net_clients); |
5610c3aa | 1272 | |
3329f07b | 1273 | if (qemu_opts_foreach(qemu_find_opts("netdev"), net_init_netdev, NULL, 1) == -1) |
f6b134ac MM |
1274 | return -1; |
1275 | ||
3329f07b | 1276 | if (qemu_opts_foreach(net, net_init_client, NULL, 1) == -1) { |
dc1c9fe8 MM |
1277 | return -1; |
1278 | } | |
1279 | ||
dc1c9fe8 MM |
1280 | return 0; |
1281 | } | |
1282 | ||
7f161aae | 1283 | int net_client_parse(QemuOptsList *opts_list, const char *optarg) |
dc1c9fe8 | 1284 | { |
a3a766e7 | 1285 | #if defined(CONFIG_SLIRP) |
68ac40d2 MM |
1286 | int ret; |
1287 | if (net_slirp_parse_legacy(opts_list, optarg, &ret)) { | |
dc1c9fe8 MM |
1288 | return ret; |
1289 | } | |
a3a766e7 | 1290 | #endif |
68ac40d2 | 1291 | |
8212c64f | 1292 | if (!qemu_opts_parse(opts_list, optarg, 1)) { |
dc1c9fe8 MM |
1293 | return -1; |
1294 | } | |
1295 | ||
cb4522cc | 1296 | default_net = 0; |
dc1c9fe8 MM |
1297 | return 0; |
1298 | } | |
7fc8d918 JW |
1299 | |
1300 | /* From FreeBSD */ | |
1301 | /* XXX: optimize */ | |
1302 | unsigned compute_mcast_idx(const uint8_t *ep) | |
1303 | { | |
1304 | uint32_t crc; | |
1305 | int carry, i, j; | |
1306 | uint8_t b; | |
1307 | ||
1308 | crc = 0xffffffff; | |
1309 | for (i = 0; i < 6; i++) { | |
1310 | b = *ep++; | |
1311 | for (j = 0; j < 8; j++) { | |
1312 | carry = ((crc & 0x80000000L) ? 1 : 0) ^ (b & 0x01); | |
1313 | crc <<= 1; | |
1314 | b >>= 1; | |
1315 | if (carry) { | |
1316 | crc = ((crc ^ POLYNOMIAL) | carry); | |
1317 | } | |
1318 | } | |
1319 | } | |
1320 | return crc >> 26; | |
1321 | } | |
4d454574 PB |
1322 | |
1323 | QemuOptsList qemu_netdev_opts = { | |
1324 | .name = "netdev", | |
1325 | .implied_opt_name = "type", | |
1326 | .head = QTAILQ_HEAD_INITIALIZER(qemu_netdev_opts.head), | |
1327 | .desc = { | |
1328 | /* | |
1329 | * no elements => accept any params | |
1330 | * validation will happen later | |
1331 | */ | |
1332 | { /* end of list */ } | |
1333 | }, | |
1334 | }; | |
1335 | ||
1336 | QemuOptsList qemu_net_opts = { | |
1337 | .name = "net", | |
1338 | .implied_opt_name = "type", | |
1339 | .head = QTAILQ_HEAD_INITIALIZER(qemu_net_opts.head), | |
1340 | .desc = { | |
1341 | /* | |
1342 | * no elements => accept any params | |
1343 | * validation will happen later | |
1344 | */ | |
1345 | { /* end of list */ } | |
1346 | }, | |
1347 | }; |