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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 | */ | |
e688df6b | 24 | |
2744d920 | 25 | #include "qemu/osdep.h" |
d40cdb10 | 26 | |
1422e32d | 27 | #include "net/net.h" |
fd9400b3 PB |
28 | #include "clients.h" |
29 | #include "hub.h" | |
1422e32d | 30 | #include "net/slirp.h" |
d60b20cf | 31 | #include "net/eth.h" |
fd9400b3 | 32 | #include "util.h" |
a245fc18 | 33 | |
83c9089e | 34 | #include "monitor/monitor.h" |
1df49e04 | 35 | #include "qemu-common.h" |
f348b6d1 | 36 | #include "qemu/help_option.h" |
cc7a8ea7 | 37 | #include "qapi/qmp/qerror.h" |
d49b6836 | 38 | #include "qemu/error-report.h" |
1de7afc9 | 39 | #include "qemu/sockets.h" |
f348b6d1 | 40 | #include "qemu/cutils.h" |
1de7afc9 | 41 | #include "qemu/config-file.h" |
4b37156c | 42 | #include "qmp-commands.h" |
75422b0d | 43 | #include "hw/qdev.h" |
1de7afc9 | 44 | #include "qemu/iov.h" |
6a1751b7 | 45 | #include "qemu/main-loop.h" |
6687b79d | 46 | #include "qapi-visit.h" |
e688df6b | 47 | #include "qapi/error.h" |
6687b79d | 48 | #include "qapi/opts-visitor.h" |
e1d64c08 | 49 | #include "sysemu/sysemu.h" |
559964a1 | 50 | #include "sysemu/qtest.h" |
fdccce45 | 51 | #include "net/filter.h" |
aa9156f4 | 52 | #include "qapi/string-output-visitor.h" |
511d2b14 | 53 | |
2944e4ec SW |
54 | /* Net bridge is currently not supported for W32. */ |
55 | #if !defined(_WIN32) | |
56 | # define CONFIG_NET_BRIDGE | |
57 | #endif | |
58 | ||
ca77d85e | 59 | static VMChangeStateEntry *net_change_state_entry; |
4e68f7a0 | 60 | static QTAILQ_HEAD(, NetClientState) net_clients; |
63a01ef8 | 61 | |
84007e81 HB |
62 | const char *host_net_devices[] = { |
63 | "tap", | |
64 | "socket", | |
65 | "dump", | |
66 | #ifdef CONFIG_NET_BRIDGE | |
67 | "bridge", | |
68 | #endif | |
027a247b SH |
69 | #ifdef CONFIG_NETMAP |
70 | "netmap", | |
71 | #endif | |
84007e81 HB |
72 | #ifdef CONFIG_SLIRP |
73 | "user", | |
74 | #endif | |
75 | #ifdef CONFIG_VDE | |
76 | "vde", | |
77 | #endif | |
03ce5744 | 78 | "vhost-user", |
84007e81 HB |
79 | NULL, |
80 | }; | |
81 | ||
63a01ef8 AL |
82 | /***********************************************************/ |
83 | /* network device redirectors */ | |
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 | ||
bcd4dfd6 MZ |
105 | int parse_host_port(struct sockaddr_in *saddr, const char *str, |
106 | Error **errp) | |
63a01ef8 AL |
107 | { |
108 | char buf[512]; | |
109 | struct hostent *he; | |
110 | const char *p, *r; | |
111 | int port; | |
112 | ||
113 | p = str; | |
bcd4dfd6 MZ |
114 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
115 | error_setg(errp, "host address '%s' doesn't contain ':' " | |
116 | "separating host from port", str); | |
63a01ef8 | 117 | return -1; |
bcd4dfd6 | 118 | } |
63a01ef8 AL |
119 | saddr->sin_family = AF_INET; |
120 | if (buf[0] == '\0') { | |
121 | saddr->sin_addr.s_addr = 0; | |
122 | } else { | |
cd390083 | 123 | if (qemu_isdigit(buf[0])) { |
bcd4dfd6 MZ |
124 | if (!inet_aton(buf, &saddr->sin_addr)) { |
125 | error_setg(errp, "host address '%s' is not a valid " | |
126 | "IPv4 address", buf); | |
63a01ef8 | 127 | return -1; |
bcd4dfd6 | 128 | } |
63a01ef8 | 129 | } else { |
bcd4dfd6 MZ |
130 | he = gethostbyname(buf); |
131 | if (he == NULL) { | |
132 | error_setg(errp, "can't resolve host address '%s'", buf); | |
63a01ef8 | 133 | return - 1; |
bcd4dfd6 | 134 | } |
63a01ef8 AL |
135 | saddr->sin_addr = *(struct in_addr *)he->h_addr; |
136 | } | |
137 | } | |
138 | port = strtol(p, (char **)&r, 0); | |
bcd4dfd6 MZ |
139 | if (r == p) { |
140 | error_setg(errp, "port number '%s' is invalid", p); | |
63a01ef8 | 141 | return -1; |
bcd4dfd6 | 142 | } |
63a01ef8 AL |
143 | saddr->sin_port = htons(port); |
144 | return 0; | |
145 | } | |
146 | ||
890ee6ab SF |
147 | char *qemu_mac_strdup_printf(const uint8_t *macaddr) |
148 | { | |
149 | return g_strdup_printf("%.2x:%.2x:%.2x:%.2x:%.2x:%.2x", | |
150 | macaddr[0], macaddr[1], macaddr[2], | |
151 | macaddr[3], macaddr[4], macaddr[5]); | |
152 | } | |
153 | ||
35277d14 | 154 | void qemu_format_nic_info_str(NetClientState *nc, uint8_t macaddr[6]) |
7cb7434b | 155 | { |
35277d14 | 156 | snprintf(nc->info_str, sizeof(nc->info_str), |
4dda4063 | 157 | "model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x", |
35277d14 | 158 | nc->model, |
7cb7434b AL |
159 | macaddr[0], macaddr[1], macaddr[2], |
160 | macaddr[3], macaddr[4], macaddr[5]); | |
161 | } | |
162 | ||
2bc22a58 SZ |
163 | static int mac_table[256] = {0}; |
164 | ||
165 | static void qemu_macaddr_set_used(MACAddr *macaddr) | |
166 | { | |
167 | int index; | |
168 | ||
169 | for (index = 0x56; index < 0xFF; index++) { | |
170 | if (macaddr->a[5] == index) { | |
171 | mac_table[index]++; | |
172 | } | |
173 | } | |
174 | } | |
175 | ||
176 | static void qemu_macaddr_set_free(MACAddr *macaddr) | |
177 | { | |
178 | int index; | |
179 | static const MACAddr base = { .a = { 0x52, 0x54, 0x00, 0x12, 0x34, 0 } }; | |
180 | ||
181 | if (memcmp(macaddr->a, &base.a, (sizeof(base.a) - 1)) != 0) { | |
182 | return; | |
183 | } | |
184 | for (index = 0x56; index < 0xFF; index++) { | |
185 | if (macaddr->a[5] == index) { | |
186 | mac_table[index]--; | |
187 | } | |
188 | } | |
189 | } | |
190 | ||
191 | static int qemu_macaddr_get_free(void) | |
192 | { | |
193 | int index; | |
194 | ||
195 | for (index = 0x56; index < 0xFF; index++) { | |
196 | if (mac_table[index] == 0) { | |
197 | return index; | |
198 | } | |
199 | } | |
200 | ||
201 | return -1; | |
202 | } | |
203 | ||
76d32cba GH |
204 | void qemu_macaddr_default_if_unset(MACAddr *macaddr) |
205 | { | |
76d32cba | 206 | static const MACAddr zero = { .a = { 0,0,0,0,0,0 } }; |
2bc22a58 SZ |
207 | static const MACAddr base = { .a = { 0x52, 0x54, 0x00, 0x12, 0x34, 0 } }; |
208 | ||
209 | if (memcmp(macaddr, &zero, sizeof(zero)) != 0) { | |
210 | if (memcmp(macaddr->a, &base.a, (sizeof(base.a) - 1)) != 0) { | |
211 | return; | |
212 | } else { | |
213 | qemu_macaddr_set_used(macaddr); | |
214 | return; | |
215 | } | |
216 | } | |
76d32cba | 217 | |
76d32cba GH |
218 | macaddr->a[0] = 0x52; |
219 | macaddr->a[1] = 0x54; | |
220 | macaddr->a[2] = 0x00; | |
221 | macaddr->a[3] = 0x12; | |
222 | macaddr->a[4] = 0x34; | |
2bc22a58 SZ |
223 | macaddr->a[5] = qemu_macaddr_get_free(); |
224 | qemu_macaddr_set_used(macaddr); | |
76d32cba GH |
225 | } |
226 | ||
d33d93b2 SH |
227 | /** |
228 | * Generate a name for net client | |
229 | * | |
c963530a | 230 | * Only net clients created with the legacy -net option and NICs need this. |
d33d93b2 | 231 | */ |
35277d14 | 232 | static char *assign_name(NetClientState *nc1, const char *model) |
676cff29 | 233 | { |
35277d14 | 234 | NetClientState *nc; |
676cff29 AL |
235 | int id = 0; |
236 | ||
35277d14 SH |
237 | QTAILQ_FOREACH(nc, &net_clients, next) { |
238 | if (nc == nc1) { | |
d33d93b2 | 239 | continue; |
5610c3aa | 240 | } |
c963530a | 241 | if (strcmp(nc->model, model) == 0) { |
53e51d85 MA |
242 | id++; |
243 | } | |
244 | } | |
245 | ||
4bf2c138 | 246 | return g_strdup_printf("%s.%d", model, id); |
676cff29 AL |
247 | } |
248 | ||
f7860455 JW |
249 | static void qemu_net_client_destructor(NetClientState *nc) |
250 | { | |
251 | g_free(nc); | |
252 | } | |
253 | ||
18a1541a JW |
254 | static void qemu_net_client_setup(NetClientState *nc, |
255 | NetClientInfo *info, | |
256 | NetClientState *peer, | |
257 | const char *model, | |
f7860455 JW |
258 | const char *name, |
259 | NetClientDestructor *destructor) | |
63a01ef8 | 260 | { |
35277d14 SH |
261 | nc->info = info; |
262 | nc->model = g_strdup(model); | |
45460d1a | 263 | if (name) { |
35277d14 | 264 | nc->name = g_strdup(name); |
45460d1a | 265 | } else { |
35277d14 | 266 | nc->name = assign_name(nc, model); |
45460d1a | 267 | } |
5610c3aa | 268 | |
ab5f3f84 SH |
269 | if (peer) { |
270 | assert(!peer->peer); | |
35277d14 SH |
271 | nc->peer = peer; |
272 | peer->peer = nc; | |
d80b9fc6 | 273 | } |
35277d14 | 274 | QTAILQ_INSERT_TAIL(&net_clients, nc, next); |
63a01ef8 | 275 | |
3e033a46 | 276 | nc->incoming_queue = qemu_new_net_queue(qemu_deliver_packet_iov, nc); |
f7860455 | 277 | nc->destructor = destructor; |
fdccce45 | 278 | QTAILQ_INIT(&nc->filters); |
18a1541a JW |
279 | } |
280 | ||
281 | NetClientState *qemu_new_net_client(NetClientInfo *info, | |
282 | NetClientState *peer, | |
283 | const char *model, | |
284 | const char *name) | |
285 | { | |
286 | NetClientState *nc; | |
287 | ||
288 | assert(info->size >= sizeof(NetClientState)); | |
289 | ||
290 | nc = g_malloc0(info->size); | |
f7860455 JW |
291 | qemu_net_client_setup(nc, info, peer, model, name, |
292 | qemu_net_client_destructor); | |
18a1541a | 293 | |
35277d14 | 294 | return nc; |
63a01ef8 AL |
295 | } |
296 | ||
ebef2c09 MM |
297 | NICState *qemu_new_nic(NetClientInfo *info, |
298 | NICConf *conf, | |
299 | const char *model, | |
300 | const char *name, | |
301 | void *opaque) | |
302 | { | |
1ceef9f2 | 303 | NetClientState **peers = conf->peers.ncs; |
ebef2c09 | 304 | NICState *nic; |
575a1c0e | 305 | int i, queues = MAX(1, conf->peers.queues); |
ebef2c09 | 306 | |
f394b2e2 | 307 | assert(info->type == NET_CLIENT_DRIVER_NIC); |
ebef2c09 MM |
308 | assert(info->size >= sizeof(NICState)); |
309 | ||
f6b26cf2 JW |
310 | nic = g_malloc0(info->size + sizeof(NetClientState) * queues); |
311 | nic->ncs = (void *)nic + info->size; | |
ebef2c09 MM |
312 | nic->conf = conf; |
313 | nic->opaque = opaque; | |
314 | ||
f6b26cf2 JW |
315 | for (i = 0; i < queues; i++) { |
316 | qemu_net_client_setup(&nic->ncs[i], info, peers[i], model, name, | |
1ceef9f2 JW |
317 | NULL); |
318 | nic->ncs[i].queue_index = i; | |
319 | } | |
320 | ||
ebef2c09 MM |
321 | return nic; |
322 | } | |
323 | ||
1ceef9f2 JW |
324 | NetClientState *qemu_get_subqueue(NICState *nic, int queue_index) |
325 | { | |
f6b26cf2 | 326 | return nic->ncs + queue_index; |
1ceef9f2 JW |
327 | } |
328 | ||
b356f76d JW |
329 | NetClientState *qemu_get_queue(NICState *nic) |
330 | { | |
1ceef9f2 | 331 | return qemu_get_subqueue(nic, 0); |
b356f76d JW |
332 | } |
333 | ||
cc1f0f45 JW |
334 | NICState *qemu_get_nic(NetClientState *nc) |
335 | { | |
1ceef9f2 JW |
336 | NetClientState *nc0 = nc - nc->queue_index; |
337 | ||
f6b26cf2 | 338 | return (NICState *)((void *)nc0 - nc->info->size); |
cc1f0f45 JW |
339 | } |
340 | ||
341 | void *qemu_get_nic_opaque(NetClientState *nc) | |
342 | { | |
343 | NICState *nic = qemu_get_nic(nc); | |
344 | ||
345 | return nic->opaque; | |
346 | } | |
347 | ||
b20c6b9e | 348 | static void qemu_cleanup_net_client(NetClientState *nc) |
63a01ef8 | 349 | { |
35277d14 | 350 | QTAILQ_REMOVE(&net_clients, nc, next); |
63a01ef8 | 351 | |
cc2a9043 AF |
352 | if (nc->info->cleanup) { |
353 | nc->info->cleanup(nc); | |
354 | } | |
a083a89d | 355 | } |
5610c3aa | 356 | |
b20c6b9e | 357 | static void qemu_free_net_client(NetClientState *nc) |
a083a89d | 358 | { |
067404be JK |
359 | if (nc->incoming_queue) { |
360 | qemu_del_net_queue(nc->incoming_queue); | |
a005d073 | 361 | } |
35277d14 SH |
362 | if (nc->peer) { |
363 | nc->peer->peer = NULL; | |
a083a89d | 364 | } |
35277d14 SH |
365 | g_free(nc->name); |
366 | g_free(nc->model); | |
f7860455 JW |
367 | if (nc->destructor) { |
368 | nc->destructor(nc); | |
369 | } | |
63a01ef8 AL |
370 | } |
371 | ||
b20c6b9e | 372 | void qemu_del_net_client(NetClientState *nc) |
a083a89d | 373 | { |
1ceef9f2 JW |
374 | NetClientState *ncs[MAX_QUEUE_NUM]; |
375 | int queues, i; | |
fdccce45 | 376 | NetFilterState *nf, *next; |
1ceef9f2 | 377 | |
f394b2e2 | 378 | assert(nc->info->type != NET_CLIENT_DRIVER_NIC); |
7fb43911 | 379 | |
1ceef9f2 JW |
380 | /* If the NetClientState belongs to a multiqueue backend, we will change all |
381 | * other NetClientStates also. | |
382 | */ | |
383 | queues = qemu_find_net_clients_except(nc->name, ncs, | |
f394b2e2 | 384 | NET_CLIENT_DRIVER_NIC, |
1ceef9f2 JW |
385 | MAX_QUEUE_NUM); |
386 | assert(queues != 0); | |
387 | ||
fdccce45 YH |
388 | QTAILQ_FOREACH_SAFE(nf, &nc->filters, next, next) { |
389 | object_unparent(OBJECT(nf)); | |
390 | } | |
391 | ||
a083a89d | 392 | /* If there is a peer NIC, delete and cleanup client, but do not free. */ |
f394b2e2 | 393 | if (nc->peer && nc->peer->info->type == NET_CLIENT_DRIVER_NIC) { |
cc1f0f45 | 394 | NICState *nic = qemu_get_nic(nc->peer); |
a083a89d MT |
395 | if (nic->peer_deleted) { |
396 | return; | |
397 | } | |
398 | nic->peer_deleted = true; | |
1ceef9f2 JW |
399 | |
400 | for (i = 0; i < queues; i++) { | |
401 | ncs[i]->peer->link_down = true; | |
402 | } | |
403 | ||
35277d14 SH |
404 | if (nc->peer->info->link_status_changed) { |
405 | nc->peer->info->link_status_changed(nc->peer); | |
a083a89d | 406 | } |
1ceef9f2 JW |
407 | |
408 | for (i = 0; i < queues; i++) { | |
409 | qemu_cleanup_net_client(ncs[i]); | |
410 | } | |
411 | ||
a083a89d MT |
412 | return; |
413 | } | |
414 | ||
1ceef9f2 JW |
415 | for (i = 0; i < queues; i++) { |
416 | qemu_cleanup_net_client(ncs[i]); | |
417 | qemu_free_net_client(ncs[i]); | |
418 | } | |
948ecf21 JW |
419 | } |
420 | ||
421 | void qemu_del_nic(NICState *nic) | |
422 | { | |
575a1c0e | 423 | int i, queues = MAX(nic->conf->peers.queues, 1); |
1ceef9f2 | 424 | |
2bc22a58 SZ |
425 | qemu_macaddr_set_free(&nic->conf->macaddr); |
426 | ||
a083a89d | 427 | /* If this is a peer NIC and peer has already been deleted, free it now. */ |
1ceef9f2 JW |
428 | if (nic->peer_deleted) { |
429 | for (i = 0; i < queues; i++) { | |
430 | qemu_free_net_client(qemu_get_subqueue(nic, i)->peer); | |
1a609520 JK |
431 | } |
432 | } | |
1a609520 | 433 | |
1ceef9f2 JW |
434 | for (i = queues - 1; i >= 0; i--) { |
435 | NetClientState *nc = qemu_get_subqueue(nic, i); | |
436 | ||
437 | qemu_cleanup_net_client(nc); | |
438 | qemu_free_net_client(nc); | |
439 | } | |
f6b26cf2 JW |
440 | |
441 | g_free(nic); | |
1a609520 JK |
442 | } |
443 | ||
57f9ef17 MM |
444 | void qemu_foreach_nic(qemu_nic_foreach func, void *opaque) |
445 | { | |
4e68f7a0 | 446 | NetClientState *nc; |
57f9ef17 | 447 | |
94878994 | 448 | QTAILQ_FOREACH(nc, &net_clients, next) { |
f394b2e2 | 449 | if (nc->info->type == NET_CLIENT_DRIVER_NIC) { |
1ceef9f2 JW |
450 | if (nc->queue_index == 0) { |
451 | func(qemu_get_nic(nc), opaque); | |
452 | } | |
57f9ef17 MM |
453 | } |
454 | } | |
57f9ef17 MM |
455 | } |
456 | ||
d6085e3a | 457 | bool qemu_has_ufo(NetClientState *nc) |
1f55ac45 | 458 | { |
d6085e3a | 459 | if (!nc || !nc->info->has_ufo) { |
1f55ac45 VM |
460 | return false; |
461 | } | |
462 | ||
d6085e3a | 463 | return nc->info->has_ufo(nc); |
1f55ac45 VM |
464 | } |
465 | ||
d6085e3a | 466 | bool qemu_has_vnet_hdr(NetClientState *nc) |
1f55ac45 | 467 | { |
d6085e3a | 468 | if (!nc || !nc->info->has_vnet_hdr) { |
1f55ac45 VM |
469 | return false; |
470 | } | |
471 | ||
d6085e3a | 472 | return nc->info->has_vnet_hdr(nc); |
1f55ac45 VM |
473 | } |
474 | ||
d6085e3a | 475 | bool qemu_has_vnet_hdr_len(NetClientState *nc, int len) |
1f55ac45 | 476 | { |
d6085e3a | 477 | if (!nc || !nc->info->has_vnet_hdr_len) { |
1f55ac45 VM |
478 | return false; |
479 | } | |
480 | ||
d6085e3a | 481 | return nc->info->has_vnet_hdr_len(nc, len); |
1f55ac45 VM |
482 | } |
483 | ||
d6085e3a | 484 | void qemu_using_vnet_hdr(NetClientState *nc, bool enable) |
1f55ac45 | 485 | { |
d6085e3a | 486 | if (!nc || !nc->info->using_vnet_hdr) { |
1f55ac45 VM |
487 | return; |
488 | } | |
489 | ||
d6085e3a | 490 | nc->info->using_vnet_hdr(nc, enable); |
1f55ac45 VM |
491 | } |
492 | ||
d6085e3a | 493 | void qemu_set_offload(NetClientState *nc, int csum, int tso4, int tso6, |
1f55ac45 VM |
494 | int ecn, int ufo) |
495 | { | |
d6085e3a | 496 | if (!nc || !nc->info->set_offload) { |
1f55ac45 VM |
497 | return; |
498 | } | |
499 | ||
d6085e3a | 500 | nc->info->set_offload(nc, csum, tso4, tso6, ecn, ufo); |
1f55ac45 VM |
501 | } |
502 | ||
d6085e3a | 503 | void qemu_set_vnet_hdr_len(NetClientState *nc, int len) |
1f55ac45 | 504 | { |
d6085e3a | 505 | if (!nc || !nc->info->set_vnet_hdr_len) { |
1f55ac45 VM |
506 | return; |
507 | } | |
508 | ||
d6b732e9 | 509 | nc->vnet_hdr_len = len; |
d6085e3a | 510 | nc->info->set_vnet_hdr_len(nc, len); |
1f55ac45 VM |
511 | } |
512 | ||
c80cd6bb GK |
513 | int qemu_set_vnet_le(NetClientState *nc, bool is_le) |
514 | { | |
052bd52f | 515 | #ifdef HOST_WORDS_BIGENDIAN |
c80cd6bb GK |
516 | if (!nc || !nc->info->set_vnet_le) { |
517 | return -ENOSYS; | |
518 | } | |
519 | ||
520 | return nc->info->set_vnet_le(nc, is_le); | |
052bd52f MT |
521 | #else |
522 | return 0; | |
523 | #endif | |
c80cd6bb GK |
524 | } |
525 | ||
526 | int qemu_set_vnet_be(NetClientState *nc, bool is_be) | |
527 | { | |
052bd52f MT |
528 | #ifdef HOST_WORDS_BIGENDIAN |
529 | return 0; | |
530 | #else | |
c80cd6bb GK |
531 | if (!nc || !nc->info->set_vnet_be) { |
532 | return -ENOSYS; | |
533 | } | |
534 | ||
535 | return nc->info->set_vnet_be(nc, is_be); | |
052bd52f | 536 | #endif |
c80cd6bb GK |
537 | } |
538 | ||
4e68f7a0 | 539 | int qemu_can_send_packet(NetClientState *sender) |
63a01ef8 | 540 | { |
e1d64c08 HZ |
541 | int vm_running = runstate_is_running(); |
542 | ||
543 | if (!vm_running) { | |
544 | return 0; | |
545 | } | |
546 | ||
a005d073 | 547 | if (!sender->peer) { |
d80b9fc6 MM |
548 | return 1; |
549 | } | |
550 | ||
a005d073 SH |
551 | if (sender->peer->receive_disabled) { |
552 | return 0; | |
553 | } else if (sender->peer->info->can_receive && | |
554 | !sender->peer->info->can_receive(sender->peer)) { | |
555 | return 0; | |
63a01ef8 | 556 | } |
60c07d93 | 557 | return 1; |
63a01ef8 AL |
558 | } |
559 | ||
e64c770d YH |
560 | static ssize_t filter_receive_iov(NetClientState *nc, |
561 | NetFilterDirection direction, | |
562 | NetClientState *sender, | |
563 | unsigned flags, | |
564 | const struct iovec *iov, | |
565 | int iovcnt, | |
566 | NetPacketSent *sent_cb) | |
567 | { | |
568 | ssize_t ret = 0; | |
569 | NetFilterState *nf = NULL; | |
570 | ||
25aaadf0 LZ |
571 | if (direction == NET_FILTER_DIRECTION_TX) { |
572 | QTAILQ_FOREACH(nf, &nc->filters, next) { | |
573 | ret = qemu_netfilter_receive(nf, direction, sender, flags, iov, | |
574 | iovcnt, sent_cb); | |
575 | if (ret) { | |
576 | return ret; | |
577 | } | |
578 | } | |
579 | } else { | |
580 | QTAILQ_FOREACH_REVERSE(nf, &nc->filters, NetFilterHead, next) { | |
581 | ret = qemu_netfilter_receive(nf, direction, sender, flags, iov, | |
582 | iovcnt, sent_cb); | |
583 | if (ret) { | |
584 | return ret; | |
585 | } | |
e64c770d YH |
586 | } |
587 | } | |
588 | ||
589 | return ret; | |
590 | } | |
591 | ||
592 | static ssize_t filter_receive(NetClientState *nc, | |
593 | NetFilterDirection direction, | |
594 | NetClientState *sender, | |
595 | unsigned flags, | |
596 | const uint8_t *data, | |
597 | size_t size, | |
598 | NetPacketSent *sent_cb) | |
599 | { | |
600 | struct iovec iov = { | |
601 | .iov_base = (void *)data, | |
602 | .iov_len = size | |
603 | }; | |
604 | ||
605 | return filter_receive_iov(nc, direction, sender, flags, &iov, 1, sent_cb); | |
606 | } | |
607 | ||
35277d14 | 608 | void qemu_purge_queued_packets(NetClientState *nc) |
8cad5516 | 609 | { |
35277d14 | 610 | if (!nc->peer) { |
d80b9fc6 | 611 | return; |
9a6ecb30 | 612 | } |
d80b9fc6 | 613 | |
067404be | 614 | qemu_net_queue_purge(nc->peer->incoming_queue, nc); |
8cad5516 MM |
615 | } |
616 | ||
ca77d85e MT |
617 | static |
618 | void qemu_flush_or_purge_queued_packets(NetClientState *nc, bool purge) | |
e94667b9 | 619 | { |
35277d14 | 620 | nc->receive_disabled = 0; |
9a6ecb30 | 621 | |
f394b2e2 | 622 | if (nc->peer && nc->peer->info->type == NET_CLIENT_DRIVER_HUBPORT) { |
199ee608 LR |
623 | if (net_hub_flush(nc->peer)) { |
624 | qemu_notify_event(); | |
625 | } | |
199ee608 | 626 | } |
067404be | 627 | if (qemu_net_queue_flush(nc->incoming_queue)) { |
987a9b48 PB |
628 | /* We emptied the queue successfully, signal to the IO thread to repoll |
629 | * the file descriptor (for tap, for example). | |
630 | */ | |
631 | qemu_notify_event(); | |
ca77d85e MT |
632 | } else if (purge) { |
633 | /* Unable to empty the queue, purge remaining packets */ | |
634 | qemu_net_queue_purge(nc->incoming_queue, nc); | |
987a9b48 | 635 | } |
e94667b9 MM |
636 | } |
637 | ||
ca77d85e MT |
638 | void qemu_flush_queued_packets(NetClientState *nc) |
639 | { | |
640 | qemu_flush_or_purge_queued_packets(nc, false); | |
641 | } | |
642 | ||
4e68f7a0 | 643 | static ssize_t qemu_send_packet_async_with_flags(NetClientState *sender, |
ca77d175 MM |
644 | unsigned flags, |
645 | const uint8_t *buf, int size, | |
646 | NetPacketSent *sent_cb) | |
764a4d1d | 647 | { |
9a6ecb30 | 648 | NetQueue *queue; |
e64c770d | 649 | int ret; |
436e5e53 | 650 | |
63a01ef8 | 651 | #ifdef DEBUG_NET |
d80b9fc6 | 652 | printf("qemu_send_packet_async:\n"); |
a1555559 | 653 | qemu_hexdump((const char *)buf, stdout, "net", size); |
63a01ef8 | 654 | #endif |
f3b6c7fc | 655 | |
a005d073 | 656 | if (sender->link_down || !sender->peer) { |
9a6ecb30 MM |
657 | return size; |
658 | } | |
659 | ||
e64c770d YH |
660 | /* Let filters handle the packet first */ |
661 | ret = filter_receive(sender, NET_FILTER_DIRECTION_TX, | |
662 | sender, flags, buf, size, sent_cb); | |
663 | if (ret) { | |
664 | return ret; | |
665 | } | |
666 | ||
667 | ret = filter_receive(sender->peer, NET_FILTER_DIRECTION_RX, | |
668 | sender, flags, buf, size, sent_cb); | |
669 | if (ret) { | |
670 | return ret; | |
671 | } | |
672 | ||
067404be | 673 | queue = sender->peer->incoming_queue; |
9a6ecb30 | 674 | |
ca77d175 MM |
675 | return qemu_net_queue_send(queue, sender, flags, buf, size, sent_cb); |
676 | } | |
677 | ||
4e68f7a0 | 678 | ssize_t qemu_send_packet_async(NetClientState *sender, |
ca77d175 MM |
679 | const uint8_t *buf, int size, |
680 | NetPacketSent *sent_cb) | |
681 | { | |
682 | return qemu_send_packet_async_with_flags(sender, QEMU_NET_PACKET_FLAG_NONE, | |
683 | buf, size, sent_cb); | |
f3b6c7fc MM |
684 | } |
685 | ||
35277d14 | 686 | void qemu_send_packet(NetClientState *nc, const uint8_t *buf, int size) |
f3b6c7fc | 687 | { |
35277d14 | 688 | qemu_send_packet_async(nc, buf, size, NULL); |
63a01ef8 AL |
689 | } |
690 | ||
35277d14 | 691 | ssize_t qemu_send_packet_raw(NetClientState *nc, const uint8_t *buf, int size) |
ca77d175 | 692 | { |
35277d14 | 693 | return qemu_send_packet_async_with_flags(nc, QEMU_NET_PACKET_FLAG_RAW, |
ca77d175 MM |
694 | buf, size, NULL); |
695 | } | |
696 | ||
35277d14 | 697 | static ssize_t nc_sendv_compat(NetClientState *nc, const struct iovec *iov, |
fefe2a78 | 698 | int iovcnt, unsigned flags) |
fbe78f4f | 699 | { |
74044c8f | 700 | uint8_t *buf = NULL; |
fefe2a78 | 701 | uint8_t *buffer; |
ce053661 | 702 | size_t offset; |
74044c8f | 703 | ssize_t ret; |
fbe78f4f | 704 | |
fefe2a78 YH |
705 | if (iovcnt == 1) { |
706 | buffer = iov[0].iov_base; | |
707 | offset = iov[0].iov_len; | |
708 | } else { | |
47f9f158 PL |
709 | offset = iov_size(iov, iovcnt); |
710 | if (offset > NET_BUFSIZE) { | |
711 | return -1; | |
712 | } | |
713 | buf = g_malloc(offset); | |
fefe2a78 | 714 | buffer = buf; |
47f9f158 | 715 | offset = iov_to_buf(iov, iovcnt, 0, buf, offset); |
fefe2a78 | 716 | } |
fbe78f4f | 717 | |
fefe2a78 | 718 | if (flags & QEMU_NET_PACKET_FLAG_RAW && nc->info->receive_raw) { |
74044c8f | 719 | ret = nc->info->receive_raw(nc, buffer, offset); |
fefe2a78 | 720 | } else { |
74044c8f | 721 | ret = nc->info->receive(nc, buffer, offset); |
fefe2a78 | 722 | } |
74044c8f PD |
723 | |
724 | g_free(buf); | |
725 | return ret; | |
fbe78f4f AL |
726 | } |
727 | ||
86a77c38 ZYW |
728 | ssize_t qemu_deliver_packet_iov(NetClientState *sender, |
729 | unsigned flags, | |
730 | const struct iovec *iov, | |
731 | int iovcnt, | |
732 | void *opaque) | |
9a6ecb30 | 733 | { |
35277d14 | 734 | NetClientState *nc = opaque; |
c67f5dc1 | 735 | int ret; |
9a6ecb30 | 736 | |
35277d14 | 737 | if (nc->link_down) { |
ce053661 | 738 | return iov_size(iov, iovcnt); |
9a6ecb30 MM |
739 | } |
740 | ||
c67f5dc1 SH |
741 | if (nc->receive_disabled) { |
742 | return 0; | |
743 | } | |
744 | ||
ca1ee3d6 | 745 | if (nc->info->receive_iov && !(flags & QEMU_NET_PACKET_FLAG_RAW)) { |
c67f5dc1 | 746 | ret = nc->info->receive_iov(nc, iov, iovcnt); |
9a6ecb30 | 747 | } else { |
fefe2a78 | 748 | ret = nc_sendv_compat(nc, iov, iovcnt, flags); |
c67f5dc1 SH |
749 | } |
750 | ||
751 | if (ret == 0) { | |
752 | nc->receive_disabled = 1; | |
e94667b9 | 753 | } |
c67f5dc1 SH |
754 | |
755 | return ret; | |
e94667b9 MM |
756 | } |
757 | ||
4e68f7a0 | 758 | ssize_t qemu_sendv_packet_async(NetClientState *sender, |
f3b6c7fc MM |
759 | const struct iovec *iov, int iovcnt, |
760 | NetPacketSent *sent_cb) | |
e94667b9 | 761 | { |
9a6ecb30 | 762 | NetQueue *queue; |
e64c770d | 763 | int ret; |
9a6ecb30 | 764 | |
a005d073 | 765 | if (sender->link_down || !sender->peer) { |
ce053661 | 766 | return iov_size(iov, iovcnt); |
e94667b9 MM |
767 | } |
768 | ||
e64c770d YH |
769 | /* Let filters handle the packet first */ |
770 | ret = filter_receive_iov(sender, NET_FILTER_DIRECTION_TX, sender, | |
771 | QEMU_NET_PACKET_FLAG_NONE, iov, iovcnt, sent_cb); | |
772 | if (ret) { | |
773 | return ret; | |
774 | } | |
775 | ||
776 | ret = filter_receive_iov(sender->peer, NET_FILTER_DIRECTION_RX, sender, | |
777 | QEMU_NET_PACKET_FLAG_NONE, iov, iovcnt, sent_cb); | |
778 | if (ret) { | |
779 | return ret; | |
780 | } | |
781 | ||
067404be | 782 | queue = sender->peer->incoming_queue; |
9a6ecb30 | 783 | |
c0b8e49c MM |
784 | return qemu_net_queue_send_iov(queue, sender, |
785 | QEMU_NET_PACKET_FLAG_NONE, | |
786 | iov, iovcnt, sent_cb); | |
fbe78f4f AL |
787 | } |
788 | ||
f3b6c7fc | 789 | ssize_t |
35277d14 | 790 | qemu_sendv_packet(NetClientState *nc, const struct iovec *iov, int iovcnt) |
f3b6c7fc | 791 | { |
35277d14 | 792 | return qemu_sendv_packet_async(nc, iov, iovcnt, NULL); |
63a01ef8 AL |
793 | } |
794 | ||
4e68f7a0 | 795 | NetClientState *qemu_find_netdev(const char *id) |
5869c4d5 | 796 | { |
35277d14 | 797 | NetClientState *nc; |
5869c4d5 | 798 | |
35277d14 | 799 | QTAILQ_FOREACH(nc, &net_clients, next) { |
f394b2e2 | 800 | if (nc->info->type == NET_CLIENT_DRIVER_NIC) |
85dde9a9 | 801 | continue; |
35277d14 SH |
802 | if (!strcmp(nc->name, id)) { |
803 | return nc; | |
5869c4d5 MM |
804 | } |
805 | } | |
806 | ||
807 | return NULL; | |
808 | } | |
809 | ||
6c51ae73 | 810 | int qemu_find_net_clients_except(const char *id, NetClientState **ncs, |
f394b2e2 | 811 | NetClientDriver type, int max) |
6c51ae73 JW |
812 | { |
813 | NetClientState *nc; | |
814 | int ret = 0; | |
815 | ||
816 | QTAILQ_FOREACH(nc, &net_clients, next) { | |
817 | if (nc->info->type == type) { | |
818 | continue; | |
819 | } | |
40d19394 | 820 | if (!id || !strcmp(nc->name, id)) { |
6c51ae73 JW |
821 | if (ret < max) { |
822 | ncs[ret] = nc; | |
823 | } | |
824 | ret++; | |
825 | } | |
826 | } | |
827 | ||
828 | return ret; | |
829 | } | |
830 | ||
7697079b AL |
831 | static int nic_get_free_idx(void) |
832 | { | |
833 | int index; | |
834 | ||
835 | for (index = 0; index < MAX_NICS; index++) | |
836 | if (!nd_table[index].used) | |
837 | return index; | |
838 | return -1; | |
839 | } | |
840 | ||
07caea31 MA |
841 | int qemu_show_nic_models(const char *arg, const char *const *models) |
842 | { | |
843 | int i; | |
844 | ||
c8057f95 | 845 | if (!arg || !is_help_option(arg)) { |
07caea31 | 846 | return 0; |
c8057f95 | 847 | } |
07caea31 MA |
848 | |
849 | fprintf(stderr, "qemu: Supported NIC models: "); | |
850 | for (i = 0 ; models[i]; i++) | |
851 | fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n'); | |
852 | return 1; | |
853 | } | |
854 | ||
d07f22c5 AL |
855 | void qemu_check_nic_model(NICInfo *nd, const char *model) |
856 | { | |
857 | const char *models[2]; | |
858 | ||
859 | models[0] = model; | |
860 | models[1] = NULL; | |
861 | ||
07caea31 MA |
862 | if (qemu_show_nic_models(nd->model, models)) |
863 | exit(0); | |
864 | if (qemu_find_nic_model(nd, models, model) < 0) | |
865 | exit(1); | |
d07f22c5 AL |
866 | } |
867 | ||
07caea31 MA |
868 | int qemu_find_nic_model(NICInfo *nd, const char * const *models, |
869 | const char *default_model) | |
d07f22c5 | 870 | { |
07caea31 | 871 | int i; |
d07f22c5 AL |
872 | |
873 | if (!nd->model) | |
7267c094 | 874 | nd->model = g_strdup(default_model); |
d07f22c5 | 875 | |
07caea31 MA |
876 | for (i = 0 ; models[i]; i++) { |
877 | if (strcmp(nd->model, models[i]) == 0) | |
878 | return i; | |
d07f22c5 AL |
879 | } |
880 | ||
6daf194d | 881 | error_report("Unsupported NIC model: %s", nd->model); |
07caea31 | 882 | return -1; |
d07f22c5 AL |
883 | } |
884 | ||
cebea510 | 885 | static int net_init_nic(const Netdev *netdev, const char *name, |
a30ecde6 | 886 | NetClientState *peer, Error **errp) |
f83c6e10 MM |
887 | { |
888 | int idx; | |
889 | NICInfo *nd; | |
2456f36f LE |
890 | const NetLegacyNicOptions *nic; |
891 | ||
f394b2e2 EB |
892 | assert(netdev->type == NET_CLIENT_DRIVER_NIC); |
893 | nic = &netdev->u.nic; | |
f83c6e10 MM |
894 | |
895 | idx = nic_get_free_idx(); | |
896 | if (idx == -1 || nb_nics >= MAX_NICS) { | |
66308868 | 897 | error_setg(errp, "too many NICs"); |
f83c6e10 MM |
898 | return -1; |
899 | } | |
900 | ||
901 | nd = &nd_table[idx]; | |
902 | ||
903 | memset(nd, 0, sizeof(*nd)); | |
904 | ||
2456f36f LE |
905 | if (nic->has_netdev) { |
906 | nd->netdev = qemu_find_netdev(nic->netdev); | |
5869c4d5 | 907 | if (!nd->netdev) { |
66308868 | 908 | error_setg(errp, "netdev '%s' not found", nic->netdev); |
5869c4d5 MM |
909 | return -1; |
910 | } | |
911 | } else { | |
d33d93b2 SH |
912 | assert(peer); |
913 | nd->netdev = peer; | |
5869c4d5 | 914 | } |
c64f50d1 | 915 | nd->name = g_strdup(name); |
2456f36f LE |
916 | if (nic->has_model) { |
917 | nd->model = g_strdup(nic->model); | |
f83c6e10 | 918 | } |
2456f36f LE |
919 | if (nic->has_addr) { |
920 | nd->devaddr = g_strdup(nic->addr); | |
f83c6e10 MM |
921 | } |
922 | ||
2456f36f LE |
923 | if (nic->has_macaddr && |
924 | net_parse_macaddr(nd->macaddr.a, nic->macaddr) < 0) { | |
66308868 | 925 | error_setg(errp, "invalid syntax for ethernet address"); |
f83c6e10 MM |
926 | return -1; |
927 | } | |
d60b20cf DK |
928 | if (nic->has_macaddr && |
929 | is_multicast_ether_addr(nd->macaddr.a)) { | |
66308868 MA |
930 | error_setg(errp, |
931 | "NIC cannot have multicast MAC address (odd 1st byte)"); | |
d60b20cf DK |
932 | return -1; |
933 | } | |
6eed1856 | 934 | qemu_macaddr_default_if_unset(&nd->macaddr); |
f83c6e10 | 935 | |
2456f36f LE |
936 | if (nic->has_vectors) { |
937 | if (nic->vectors > 0x7ffffff) { | |
66308868 | 938 | error_setg(errp, "invalid # of vectors: %"PRIu32, nic->vectors); |
2456f36f LE |
939 | return -1; |
940 | } | |
941 | nd->nvectors = nic->vectors; | |
942 | } else { | |
943 | nd->nvectors = DEV_NVECTORS_UNSPECIFIED; | |
f83c6e10 MM |
944 | } |
945 | ||
946 | nd->used = 1; | |
f83c6e10 MM |
947 | nb_nics++; |
948 | ||
949 | return idx; | |
950 | } | |
951 | ||
6687b79d | 952 | |
f394b2e2 | 953 | static int (* const net_client_init_fun[NET_CLIENT_DRIVER__MAX])( |
cebea510 | 954 | const Netdev *netdev, |
6687b79d | 955 | const char *name, |
a30ecde6 | 956 | NetClientState *peer, Error **errp) = { |
f394b2e2 | 957 | [NET_CLIENT_DRIVER_NIC] = net_init_nic, |
ec302ffd | 958 | #ifdef CONFIG_SLIRP |
f394b2e2 | 959 | [NET_CLIENT_DRIVER_USER] = net_init_slirp, |
2944e4ec | 960 | #endif |
f394b2e2 EB |
961 | [NET_CLIENT_DRIVER_TAP] = net_init_tap, |
962 | [NET_CLIENT_DRIVER_SOCKET] = net_init_socket, | |
dd51058d | 963 | #ifdef CONFIG_VDE |
f394b2e2 | 964 | [NET_CLIENT_DRIVER_VDE] = net_init_vde, |
58952137 VM |
965 | #endif |
966 | #ifdef CONFIG_NETMAP | |
f394b2e2 | 967 | [NET_CLIENT_DRIVER_NETMAP] = net_init_netmap, |
dd51058d | 968 | #endif |
f394b2e2 | 969 | [NET_CLIENT_DRIVER_DUMP] = net_init_dump, |
2944e4ec | 970 | #ifdef CONFIG_NET_BRIDGE |
f394b2e2 | 971 | [NET_CLIENT_DRIVER_BRIDGE] = net_init_bridge, |
6687b79d | 972 | #endif |
f394b2e2 | 973 | [NET_CLIENT_DRIVER_HUBPORT] = net_init_hubport, |
03ce5744 | 974 | #ifdef CONFIG_VHOST_NET_USED |
f394b2e2 | 975 | [NET_CLIENT_DRIVER_VHOST_USER] = net_init_vhost_user, |
03ce5744 | 976 | #endif |
015a33bd | 977 | #ifdef CONFIG_L2TPV3 |
f394b2e2 | 978 | [NET_CLIENT_DRIVER_L2TPV3] = net_init_l2tpv3, |
3fb69aa1 | 979 | #endif |
f83c6e10 MM |
980 | }; |
981 | ||
6687b79d | 982 | |
0e55c381 | 983 | static int net_client_init1(const void *object, bool is_netdev, Error **errp) |
f83c6e10 | 984 | { |
cebea510 KZ |
985 | Netdev legacy = {0}; |
986 | const Netdev *netdev; | |
6d952ebe | 987 | const char *name; |
4ef0defb | 988 | NetClientState *peer = NULL; |
a2dbe135 | 989 | static bool vlan_warned; |
f83c6e10 | 990 | |
5294e2c7 | 991 | if (is_netdev) { |
cebea510 | 992 | netdev = object; |
1e81aba5 | 993 | name = netdev->id; |
6687b79d | 994 | |
f394b2e2 EB |
995 | if (netdev->type == NET_CLIENT_DRIVER_DUMP || |
996 | netdev->type == NET_CLIENT_DRIVER_NIC || | |
997 | !net_client_init_fun[netdev->type]) { | |
c6bd8c70 MA |
998 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "type", |
999 | "a netdev backend type"); | |
f6b134ac MM |
1000 | return -1; |
1001 | } | |
6687b79d | 1002 | } else { |
1e81aba5 | 1003 | const NetLegacy *net = object; |
f394b2e2 | 1004 | const NetLegacyOptions *opts = net->opts; |
cebea510 | 1005 | legacy.id = net->id; |
cebea510 | 1006 | netdev = &legacy; |
6687b79d | 1007 | /* missing optional values have been initialized to "all bits zero" */ |
1e81aba5 | 1008 | name = net->has_id ? net->id : net->name; |
d139e9a6 | 1009 | |
f394b2e2 EB |
1010 | /* Map the old options to the new flat type */ |
1011 | switch (opts->type) { | |
d3be4b57 | 1012 | case NET_LEGACY_OPTIONS_TYPE_NONE: |
d139e9a6 | 1013 | return 0; /* nothing to do */ |
d3be4b57 | 1014 | case NET_LEGACY_OPTIONS_TYPE_NIC: |
f394b2e2 | 1015 | legacy.type = NET_CLIENT_DRIVER_NIC; |
d3be4b57 | 1016 | legacy.u.nic = opts->u.nic; |
f394b2e2 | 1017 | break; |
d3be4b57 | 1018 | case NET_LEGACY_OPTIONS_TYPE_USER: |
f394b2e2 | 1019 | legacy.type = NET_CLIENT_DRIVER_USER; |
d3be4b57 | 1020 | legacy.u.user = opts->u.user; |
f394b2e2 | 1021 | break; |
d3be4b57 | 1022 | case NET_LEGACY_OPTIONS_TYPE_TAP: |
f394b2e2 | 1023 | legacy.type = NET_CLIENT_DRIVER_TAP; |
d3be4b57 | 1024 | legacy.u.tap = opts->u.tap; |
f394b2e2 | 1025 | break; |
d3be4b57 | 1026 | case NET_LEGACY_OPTIONS_TYPE_L2TPV3: |
f394b2e2 | 1027 | legacy.type = NET_CLIENT_DRIVER_L2TPV3; |
d3be4b57 | 1028 | legacy.u.l2tpv3 = opts->u.l2tpv3; |
f394b2e2 | 1029 | break; |
d3be4b57 | 1030 | case NET_LEGACY_OPTIONS_TYPE_SOCKET: |
f394b2e2 | 1031 | legacy.type = NET_CLIENT_DRIVER_SOCKET; |
d3be4b57 | 1032 | legacy.u.socket = opts->u.socket; |
f394b2e2 | 1033 | break; |
d3be4b57 | 1034 | case NET_LEGACY_OPTIONS_TYPE_VDE: |
f394b2e2 | 1035 | legacy.type = NET_CLIENT_DRIVER_VDE; |
d3be4b57 | 1036 | legacy.u.vde = opts->u.vde; |
f394b2e2 | 1037 | break; |
d3be4b57 | 1038 | case NET_LEGACY_OPTIONS_TYPE_DUMP: |
f394b2e2 | 1039 | legacy.type = NET_CLIENT_DRIVER_DUMP; |
d3be4b57 | 1040 | legacy.u.dump = opts->u.dump; |
f394b2e2 | 1041 | break; |
d3be4b57 | 1042 | case NET_LEGACY_OPTIONS_TYPE_BRIDGE: |
f394b2e2 | 1043 | legacy.type = NET_CLIENT_DRIVER_BRIDGE; |
d3be4b57 | 1044 | legacy.u.bridge = opts->u.bridge; |
f394b2e2 | 1045 | break; |
d3be4b57 | 1046 | case NET_LEGACY_OPTIONS_TYPE_NETMAP: |
f394b2e2 | 1047 | legacy.type = NET_CLIENT_DRIVER_NETMAP; |
d3be4b57 | 1048 | legacy.u.netmap = opts->u.netmap; |
f394b2e2 | 1049 | break; |
d3be4b57 | 1050 | case NET_LEGACY_OPTIONS_TYPE_VHOST_USER: |
f394b2e2 | 1051 | legacy.type = NET_CLIENT_DRIVER_VHOST_USER; |
d3be4b57 | 1052 | legacy.u.vhost_user = opts->u.vhost_user; |
f394b2e2 EB |
1053 | break; |
1054 | default: | |
1055 | abort(); | |
1e81aba5 | 1056 | } |
d139e9a6 | 1057 | |
f394b2e2 | 1058 | if (!net_client_init_fun[netdev->type]) { |
d139e9a6 SH |
1059 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "type", |
1060 | "a net backend type (maybe it is not compiled " | |
1061 | "into this binary)"); | |
1062 | return -1; | |
1063 | } | |
f6b134ac | 1064 | |
1e81aba5 | 1065 | /* Do not add to a vlan if it's a nic with a netdev= parameter. */ |
f394b2e2 | 1066 | if (netdev->type != NET_CLIENT_DRIVER_NIC || |
d3be4b57 | 1067 | !opts->u.nic.has_netdev) { |
18d65d22 | 1068 | peer = net_hub_add_port(net->has_vlan ? net->vlan : 0, NULL, NULL); |
1e81aba5 | 1069 | } |
a2dbe135 TH |
1070 | |
1071 | if (net->has_vlan && !vlan_warned) { | |
1072 | error_report("'vlan' is deprecated. Please use 'netdev' instead."); | |
1073 | vlan_warned = true; | |
1074 | } | |
4ef0defb | 1075 | } |
6687b79d | 1076 | |
f394b2e2 | 1077 | if (net_client_init_fun[netdev->type](netdev, name, peer, errp) < 0) { |
4ef0defb SH |
1078 | /* FIXME drop when all init functions store an Error */ |
1079 | if (errp && !*errp) { | |
1080 | error_setg(errp, QERR_DEVICE_INIT_FAILED, | |
977c736f | 1081 | NetClientDriver_str(netdev->type)); |
f6b134ac | 1082 | } |
4ef0defb | 1083 | return -1; |
f6b134ac | 1084 | } |
6687b79d LE |
1085 | return 0; |
1086 | } | |
1087 | ||
f6b134ac | 1088 | |
0e55c381 | 1089 | int net_client_init(QemuOpts *opts, bool is_netdev, Error **errp) |
6687b79d LE |
1090 | { |
1091 | void *object = NULL; | |
1092 | Error *err = NULL; | |
1093 | int ret = -1; | |
09204eac | 1094 | Visitor *v = opts_visitor_new(opts); |
f83c6e10 | 1095 | |
7aac531e YB |
1096 | { |
1097 | /* Parse convenience option format ip6-net=fec0::0[/64] */ | |
891a2bb5 | 1098 | const char *ip6_net = qemu_opt_get(opts, "ipv6-net"); |
7aac531e YB |
1099 | |
1100 | if (ip6_net) { | |
1101 | char buf[strlen(ip6_net) + 1]; | |
1102 | ||
1103 | if (get_str_sep(buf, sizeof(buf), &ip6_net, '/') < 0) { | |
1104 | /* Default 64bit prefix length. */ | |
891a2bb5 ST |
1105 | qemu_opt_set(opts, "ipv6-prefix", ip6_net, &error_abort); |
1106 | qemu_opt_set_number(opts, "ipv6-prefixlen", 64, &error_abort); | |
7aac531e YB |
1107 | } else { |
1108 | /* User-specified prefix length. */ | |
1109 | unsigned long len; | |
1110 | int err; | |
1111 | ||
891a2bb5 | 1112 | qemu_opt_set(opts, "ipv6-prefix", buf, &error_abort); |
7aac531e YB |
1113 | err = qemu_strtoul(ip6_net, NULL, 10, &len); |
1114 | ||
1115 | if (err) { | |
1116 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, | |
891a2bb5 | 1117 | "ipv6-prefix", "a number"); |
7aac531e | 1118 | } else { |
891a2bb5 | 1119 | qemu_opt_set_number(opts, "ipv6-prefixlen", len, |
7aac531e YB |
1120 | &error_abort); |
1121 | } | |
1122 | } | |
891a2bb5 | 1123 | qemu_opt_unset(opts, "ipv6-net"); |
7aac531e YB |
1124 | } |
1125 | } | |
1126 | ||
96a1616c EB |
1127 | if (is_netdev) { |
1128 | visit_type_Netdev(v, NULL, (Netdev **)&object, &err); | |
1129 | } else { | |
1130 | visit_type_NetLegacy(v, NULL, (NetLegacy **)&object, &err); | |
f83c6e10 MM |
1131 | } |
1132 | ||
6687b79d | 1133 | if (!err) { |
1a0c0958 | 1134 | ret = net_client_init1(object, is_netdev, &err); |
6687b79d LE |
1135 | } |
1136 | ||
96a1616c EB |
1137 | if (is_netdev) { |
1138 | qapi_free_Netdev(object); | |
1139 | } else { | |
1140 | qapi_free_NetLegacy(object); | |
6687b79d LE |
1141 | } |
1142 | ||
1143 | error_propagate(errp, err); | |
09204eac | 1144 | visit_free(v); |
6687b79d | 1145 | return ret; |
f83c6e10 MM |
1146 | } |
1147 | ||
6687b79d | 1148 | |
6f338c34 AL |
1149 | static int net_host_check_device(const char *device) |
1150 | { | |
1151 | int i; | |
84007e81 HB |
1152 | for (i = 0; host_net_devices[i]; i++) { |
1153 | if (!strncmp(host_net_devices[i], device, | |
1154 | strlen(host_net_devices[i]))) { | |
6f338c34 | 1155 | return 1; |
84007e81 | 1156 | } |
6f338c34 AL |
1157 | } |
1158 | ||
1159 | return 0; | |
1160 | } | |
1161 | ||
3e5a50d6 | 1162 | void hmp_host_net_add(Monitor *mon, const QDict *qdict) |
6f338c34 | 1163 | { |
f18c16de | 1164 | const char *device = qdict_get_str(qdict, "device"); |
7f1c9d20 | 1165 | const char *opts_str = qdict_get_try_str(qdict, "opts"); |
4559a1db | 1166 | Error *local_err = NULL; |
7f1c9d20 | 1167 | QemuOpts *opts; |
559964a1 TH |
1168 | static bool warned; |
1169 | ||
1170 | if (!warned && !qtest_enabled()) { | |
1171 | error_report("host_net_add is deprecated, use netdev_add instead"); | |
1172 | warned = true; | |
1173 | } | |
f18c16de | 1174 | |
6f338c34 | 1175 | if (!net_host_check_device(device)) { |
376253ec | 1176 | monitor_printf(mon, "invalid host network device %s\n", device); |
6f338c34 AL |
1177 | return; |
1178 | } | |
7f1c9d20 | 1179 | |
70b94331 MA |
1180 | opts = qemu_opts_parse_noisily(qemu_find_opts("net"), |
1181 | opts_str ? opts_str : "", false); | |
7f1c9d20 | 1182 | if (!opts) { |
7f1c9d20 MM |
1183 | return; |
1184 | } | |
1185 | ||
f43e47db | 1186 | qemu_opt_set(opts, "type", device, &error_abort); |
7f1c9d20 | 1187 | |
0e55c381 | 1188 | net_client_init(opts, false, &local_err); |
84d18f06 | 1189 | if (local_err) { |
12d0cc2d | 1190 | error_report_err(local_err); |
5c8be678 AL |
1191 | monitor_printf(mon, "adding host network device %s failed\n", device); |
1192 | } | |
6f338c34 AL |
1193 | } |
1194 | ||
3e5a50d6 | 1195 | void hmp_host_net_remove(Monitor *mon, const QDict *qdict) |
6f338c34 | 1196 | { |
35277d14 | 1197 | NetClientState *nc; |
f18c16de LC |
1198 | int vlan_id = qdict_get_int(qdict, "vlan_id"); |
1199 | const char *device = qdict_get_str(qdict, "device"); | |
559964a1 TH |
1200 | static bool warned; |
1201 | ||
1202 | if (!warned && !qtest_enabled()) { | |
1203 | error_report("host_net_remove is deprecated, use netdev_del instead"); | |
1204 | warned = true; | |
1205 | } | |
6f338c34 | 1206 | |
35277d14 SH |
1207 | nc = net_hub_find_client_by_name(vlan_id, device); |
1208 | if (!nc) { | |
86e11772 HB |
1209 | error_report("Host network device '%s' on hub '%d' not found", |
1210 | device, vlan_id); | |
6f338c34 AL |
1211 | return; |
1212 | } | |
f394b2e2 | 1213 | if (nc->info->type == NET_CLIENT_DRIVER_NIC) { |
86e11772 | 1214 | error_report("invalid host network device '%s'", device); |
e8f1f9db AL |
1215 | return; |
1216 | } | |
64a55d60 JW |
1217 | |
1218 | qemu_del_net_client(nc->peer); | |
b20c6b9e | 1219 | qemu_del_net_client(nc); |
a4543b1b | 1220 | qemu_opts_del(qemu_opts_find(qemu_find_opts("net"), device)); |
6f338c34 AL |
1221 | } |
1222 | ||
928059a3 LC |
1223 | void netdev_add(QemuOpts *opts, Error **errp) |
1224 | { | |
0e55c381 | 1225 | net_client_init(opts, true, errp); |
928059a3 LC |
1226 | } |
1227 | ||
485febc6 | 1228 | void qmp_netdev_add(QDict *qdict, QObject **ret, Error **errp) |
ae82d324 | 1229 | { |
4e89978e | 1230 | Error *local_err = NULL; |
928059a3 | 1231 | QemuOptsList *opts_list; |
ae82d324 | 1232 | QemuOpts *opts; |
ae82d324 | 1233 | |
928059a3 | 1234 | opts_list = qemu_find_opts_err("netdev", &local_err); |
84d18f06 | 1235 | if (local_err) { |
485febc6 | 1236 | goto out; |
ae82d324 MA |
1237 | } |
1238 | ||
928059a3 | 1239 | opts = qemu_opts_from_qdict(opts_list, qdict, &local_err); |
84d18f06 | 1240 | if (local_err) { |
485febc6 | 1241 | goto out; |
928059a3 LC |
1242 | } |
1243 | ||
1244 | netdev_add(opts, &local_err); | |
84d18f06 | 1245 | if (local_err) { |
410cbafe | 1246 | qemu_opts_del(opts); |
485febc6 | 1247 | goto out; |
410cbafe YT |
1248 | } |
1249 | ||
485febc6 MA |
1250 | out: |
1251 | error_propagate(errp, local_err); | |
ae82d324 MA |
1252 | } |
1253 | ||
5f964155 | 1254 | void qmp_netdev_del(const char *id, Error **errp) |
ae82d324 | 1255 | { |
35277d14 | 1256 | NetClientState *nc; |
645c9496 | 1257 | QemuOpts *opts; |
ae82d324 | 1258 | |
35277d14 SH |
1259 | nc = qemu_find_netdev(id); |
1260 | if (!nc) { | |
75158ebb MA |
1261 | error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, |
1262 | "Device '%s' not found", id); | |
5f964155 | 1263 | return; |
ae82d324 | 1264 | } |
5f964155 | 1265 | |
645c9496 SH |
1266 | opts = qemu_opts_find(qemu_find_opts_err("netdev", NULL), id); |
1267 | if (!opts) { | |
1268 | error_setg(errp, "Device '%s' is not a netdev", id); | |
1269 | return; | |
1270 | } | |
1271 | ||
b20c6b9e | 1272 | qemu_del_net_client(nc); |
645c9496 | 1273 | qemu_opts_del(opts); |
ae82d324 MA |
1274 | } |
1275 | ||
aa9156f4 HZ |
1276 | static void netfilter_print_info(Monitor *mon, NetFilterState *nf) |
1277 | { | |
1278 | char *str; | |
1279 | ObjectProperty *prop; | |
1280 | ObjectPropertyIterator iter; | |
3b098d56 | 1281 | Visitor *v; |
aa9156f4 HZ |
1282 | |
1283 | /* generate info str */ | |
1284 | object_property_iter_init(&iter, OBJECT(nf)); | |
1285 | while ((prop = object_property_iter_next(&iter))) { | |
1286 | if (!strcmp(prop->name, "type")) { | |
1287 | continue; | |
1288 | } | |
3b098d56 EB |
1289 | v = string_output_visitor_new(false, &str); |
1290 | object_property_get(OBJECT(nf), v, prop->name, NULL); | |
1291 | visit_complete(v, &str); | |
1292 | visit_free(v); | |
aa9156f4 HZ |
1293 | monitor_printf(mon, ",%s=%s", prop->name, str); |
1294 | g_free(str); | |
1295 | } | |
1296 | monitor_printf(mon, "\n"); | |
1297 | } | |
1298 | ||
1a859593 | 1299 | void print_net_client(Monitor *mon, NetClientState *nc) |
44e798d3 | 1300 | { |
a4960f52 YH |
1301 | NetFilterState *nf; |
1302 | ||
1ceef9f2 JW |
1303 | monitor_printf(mon, "%s: index=%d,type=%s,%s\n", nc->name, |
1304 | nc->queue_index, | |
977c736f | 1305 | NetClientDriver_str(nc->info->type), |
1ceef9f2 | 1306 | nc->info_str); |
a4960f52 YH |
1307 | if (!QTAILQ_EMPTY(&nc->filters)) { |
1308 | monitor_printf(mon, "filters:\n"); | |
1309 | } | |
1310 | QTAILQ_FOREACH(nf, &nc->filters, next) { | |
a3e8a3f3 | 1311 | char *path = object_get_canonical_path_component(OBJECT(nf)); |
aa9156f4 HZ |
1312 | |
1313 | monitor_printf(mon, " - %s: type=%s", path, | |
1314 | object_get_typename(OBJECT(nf))); | |
1315 | netfilter_print_info(mon, nf); | |
a3e8a3f3 | 1316 | g_free(path); |
a4960f52 | 1317 | } |
44e798d3 JK |
1318 | } |
1319 | ||
b1be4280 AK |
1320 | RxFilterInfoList *qmp_query_rx_filter(bool has_name, const char *name, |
1321 | Error **errp) | |
1322 | { | |
1323 | NetClientState *nc; | |
1324 | RxFilterInfoList *filter_list = NULL, *last_entry = NULL; | |
1325 | ||
1326 | QTAILQ_FOREACH(nc, &net_clients, next) { | |
1327 | RxFilterInfoList *entry; | |
1328 | RxFilterInfo *info; | |
1329 | ||
1330 | if (has_name && strcmp(nc->name, name) != 0) { | |
1331 | continue; | |
1332 | } | |
1333 | ||
1334 | /* only query rx-filter information of NIC */ | |
f394b2e2 | 1335 | if (nc->info->type != NET_CLIENT_DRIVER_NIC) { |
b1be4280 AK |
1336 | if (has_name) { |
1337 | error_setg(errp, "net client(%s) isn't a NIC", name); | |
9083da1d | 1338 | return NULL; |
b1be4280 AK |
1339 | } |
1340 | continue; | |
1341 | } | |
1342 | ||
5320c2ca VY |
1343 | /* only query information on queue 0 since the info is per nic, |
1344 | * not per queue | |
1345 | */ | |
1346 | if (nc->queue_index != 0) | |
1347 | continue; | |
1348 | ||
b1be4280 AK |
1349 | if (nc->info->query_rx_filter) { |
1350 | info = nc->info->query_rx_filter(nc); | |
1351 | entry = g_malloc0(sizeof(*entry)); | |
1352 | entry->value = info; | |
1353 | ||
1354 | if (!filter_list) { | |
1355 | filter_list = entry; | |
1356 | } else { | |
1357 | last_entry->next = entry; | |
1358 | } | |
1359 | last_entry = entry; | |
1360 | } else if (has_name) { | |
1361 | error_setg(errp, "net client(%s) doesn't support" | |
1362 | " rx-filter querying", name); | |
9083da1d | 1363 | return NULL; |
b1be4280 | 1364 | } |
638fb141 MA |
1365 | |
1366 | if (has_name) { | |
1367 | break; | |
1368 | } | |
b1be4280 AK |
1369 | } |
1370 | ||
9083da1d | 1371 | if (filter_list == NULL && has_name) { |
b1be4280 AK |
1372 | error_setg(errp, "invalid net client name: %s", name); |
1373 | } | |
1374 | ||
1375 | return filter_list; | |
1376 | } | |
1377 | ||
1ce6be24 | 1378 | void hmp_info_network(Monitor *mon, const QDict *qdict) |
63a01ef8 | 1379 | { |
35277d14 | 1380 | NetClientState *nc, *peer; |
f394b2e2 | 1381 | NetClientDriver type; |
63a01ef8 | 1382 | |
1a859593 ZYW |
1383 | net_hub_info(mon); |
1384 | ||
35277d14 SH |
1385 | QTAILQ_FOREACH(nc, &net_clients, next) { |
1386 | peer = nc->peer; | |
1387 | type = nc->info->type; | |
5610c3aa | 1388 | |
1a859593 ZYW |
1389 | /* Skip if already printed in hub info */ |
1390 | if (net_hub_id_for_client(nc, NULL) == 0) { | |
1391 | continue; | |
5610c3aa | 1392 | } |
1a859593 | 1393 | |
f394b2e2 | 1394 | if (!peer || type == NET_CLIENT_DRIVER_NIC) { |
35277d14 | 1395 | print_net_client(mon, nc); |
19061e63 | 1396 | } /* else it's a netdev connected to a NIC, printed with the NIC */ |
f394b2e2 | 1397 | if (peer && type == NET_CLIENT_DRIVER_NIC) { |
1a859593 | 1398 | monitor_printf(mon, " \\ "); |
44e798d3 | 1399 | print_net_client(mon, peer); |
a0104e0e | 1400 | } |
a0104e0e | 1401 | } |
63a01ef8 AL |
1402 | } |
1403 | ||
4b37156c | 1404 | void qmp_set_link(const char *name, bool up, Error **errp) |
436e5e53 | 1405 | { |
1ceef9f2 JW |
1406 | NetClientState *ncs[MAX_QUEUE_NUM]; |
1407 | NetClientState *nc; | |
1408 | int queues, i; | |
436e5e53 | 1409 | |
1ceef9f2 | 1410 | queues = qemu_find_net_clients_except(name, ncs, |
f394b2e2 | 1411 | NET_CLIENT_DRIVER__MAX, |
1ceef9f2 JW |
1412 | MAX_QUEUE_NUM); |
1413 | ||
1414 | if (queues == 0) { | |
75158ebb MA |
1415 | error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, |
1416 | "Device '%s' not found", name); | |
4b37156c | 1417 | return; |
436e5e53 | 1418 | } |
1ceef9f2 | 1419 | nc = ncs[0]; |
436e5e53 | 1420 | |
1ceef9f2 JW |
1421 | for (i = 0; i < queues; i++) { |
1422 | ncs[i]->link_down = !up; | |
1423 | } | |
436e5e53 | 1424 | |
35277d14 SH |
1425 | if (nc->info->link_status_changed) { |
1426 | nc->info->link_status_changed(nc); | |
665a3b07 | 1427 | } |
ab1cbe1c | 1428 | |
02d38fcb VY |
1429 | if (nc->peer) { |
1430 | /* Change peer link only if the peer is NIC and then notify peer. | |
1431 | * If the peer is a HUBPORT or a backend, we do not change the | |
1432 | * link status. | |
1433 | * | |
1434 | * This behavior is compatible with qemu vlans where there could be | |
1435 | * multiple clients that can still communicate with each other in | |
1436 | * disconnected mode. For now maintain this compatibility. | |
1437 | */ | |
f394b2e2 | 1438 | if (nc->peer->info->type == NET_CLIENT_DRIVER_NIC) { |
02d38fcb VY |
1439 | for (i = 0; i < queues; i++) { |
1440 | ncs[i]->peer->link_down = !up; | |
1441 | } | |
1442 | } | |
1443 | if (nc->peer->info->link_status_changed) { | |
1444 | nc->peer->info->link_status_changed(nc->peer); | |
1445 | } | |
ab1cbe1c | 1446 | } |
436e5e53 AL |
1447 | } |
1448 | ||
ca77d85e MT |
1449 | static void net_vm_change_state_handler(void *opaque, int running, |
1450 | RunState state) | |
1451 | { | |
625de449 FZ |
1452 | NetClientState *nc; |
1453 | NetClientState *tmp; | |
ca77d85e | 1454 | |
625de449 FZ |
1455 | QTAILQ_FOREACH_SAFE(nc, &net_clients, next, tmp) { |
1456 | if (running) { | |
1457 | /* Flush queued packets and wake up backends. */ | |
1458 | if (nc->peer && qemu_can_send_packet(nc)) { | |
1459 | qemu_flush_queued_packets(nc->peer); | |
1460 | } | |
1461 | } else { | |
1462 | /* Complete all queued packets, to guarantee we don't modify | |
1463 | * state later when VM is not running. | |
1464 | */ | |
ca77d85e MT |
1465 | qemu_flush_or_purge_queued_packets(nc, true); |
1466 | } | |
1467 | } | |
1468 | } | |
1469 | ||
63a01ef8 AL |
1470 | void net_cleanup(void) |
1471 | { | |
1ceef9f2 | 1472 | NetClientState *nc; |
577c4af9 | 1473 | |
1ceef9f2 JW |
1474 | /* We may del multiple entries during qemu_del_net_client(), |
1475 | * so QTAILQ_FOREACH_SAFE() is also not safe here. | |
1476 | */ | |
1477 | while (!QTAILQ_EMPTY(&net_clients)) { | |
1478 | nc = QTAILQ_FIRST(&net_clients); | |
f394b2e2 | 1479 | if (nc->info->type == NET_CLIENT_DRIVER_NIC) { |
948ecf21 JW |
1480 | qemu_del_nic(qemu_get_nic(nc)); |
1481 | } else { | |
1482 | qemu_del_net_client(nc); | |
1483 | } | |
577c4af9 | 1484 | } |
ca77d85e MT |
1485 | |
1486 | qemu_del_vm_change_state_handler(net_change_state_entry); | |
63a01ef8 AL |
1487 | } |
1488 | ||
668680f7 | 1489 | void net_check_clients(void) |
63a01ef8 | 1490 | { |
35277d14 | 1491 | NetClientState *nc; |
48e2faf2 | 1492 | int i; |
63a01ef8 | 1493 | |
81017645 | 1494 | net_hub_check_clients(); |
ac60cc18 | 1495 | |
35277d14 SH |
1496 | QTAILQ_FOREACH(nc, &net_clients, next) { |
1497 | if (!nc->peer) { | |
8297be80 | 1498 | warn_report("%s %s has no peer", |
b62e39b4 AF |
1499 | nc->info->type == NET_CLIENT_DRIVER_NIC |
1500 | ? "nic" : "netdev", | |
1501 | nc->name); | |
efe32fdd MA |
1502 | } |
1503 | } | |
48e2faf2 PM |
1504 | |
1505 | /* Check that all NICs requested via -net nic actually got created. | |
1506 | * NICs created via -device don't need to be checked here because | |
1507 | * they are always instantiated. | |
1508 | */ | |
1509 | for (i = 0; i < MAX_NICS; i++) { | |
1510 | NICInfo *nd = &nd_table[i]; | |
1511 | if (nd->used && !nd->instantiated) { | |
8297be80 AF |
1512 | warn_report("requested NIC (%s, model %s) " |
1513 | "was not created (not supported by this machine?)", | |
1514 | nd->name ? nd->name : "anonymous", | |
1515 | nd->model ? nd->model : "unspecified"); | |
48e2faf2 PM |
1516 | } |
1517 | } | |
63a01ef8 | 1518 | } |
dc1c9fe8 | 1519 | |
28d0de7a | 1520 | static int net_init_client(void *dummy, QemuOpts *opts, Error **errp) |
dc1c9fe8 | 1521 | { |
4559a1db LC |
1522 | Error *local_err = NULL; |
1523 | ||
0e55c381 | 1524 | net_client_init(opts, false, &local_err); |
84d18f06 | 1525 | if (local_err) { |
12d0cc2d | 1526 | error_report_err(local_err); |
c1671a08 | 1527 | return -1; |
4559a1db LC |
1528 | } |
1529 | ||
c1671a08 | 1530 | return 0; |
f6b134ac MM |
1531 | } |
1532 | ||
28d0de7a | 1533 | static int net_init_netdev(void *dummy, QemuOpts *opts, Error **errp) |
f6b134ac | 1534 | { |
4559a1db LC |
1535 | Error *local_err = NULL; |
1536 | int ret; | |
1537 | ||
0e55c381 | 1538 | ret = net_client_init(opts, true, &local_err); |
84d18f06 | 1539 | if (local_err) { |
12d0cc2d | 1540 | error_report_err(local_err); |
4559a1db LC |
1541 | return -1; |
1542 | } | |
1543 | ||
1544 | return ret; | |
dc1c9fe8 MM |
1545 | } |
1546 | ||
1547 | int net_init_clients(void) | |
1548 | { | |
3329f07b GH |
1549 | QemuOptsList *net = qemu_find_opts("net"); |
1550 | ||
ca77d85e MT |
1551 | net_change_state_entry = |
1552 | qemu_add_vm_change_state_handler(net_vm_change_state_handler, NULL); | |
1553 | ||
94878994 | 1554 | QTAILQ_INIT(&net_clients); |
5610c3aa | 1555 | |
28d0de7a MA |
1556 | if (qemu_opts_foreach(qemu_find_opts("netdev"), |
1557 | net_init_netdev, NULL, NULL)) { | |
f6b134ac | 1558 | return -1; |
a4c7367f | 1559 | } |
f6b134ac | 1560 | |
28d0de7a | 1561 | if (qemu_opts_foreach(net, net_init_client, NULL, NULL)) { |
dc1c9fe8 MM |
1562 | return -1; |
1563 | } | |
1564 | ||
dc1c9fe8 MM |
1565 | return 0; |
1566 | } | |
1567 | ||
7f161aae | 1568 | int net_client_parse(QemuOptsList *opts_list, const char *optarg) |
dc1c9fe8 | 1569 | { |
70b94331 | 1570 | if (!qemu_opts_parse_noisily(opts_list, optarg, true)) { |
dc1c9fe8 MM |
1571 | return -1; |
1572 | } | |
1573 | ||
1574 | return 0; | |
1575 | } | |
7fc8d918 JW |
1576 | |
1577 | /* From FreeBSD */ | |
1578 | /* XXX: optimize */ | |
eaba8f34 | 1579 | uint32_t net_crc32(const uint8_t *p, int len) |
7fc8d918 JW |
1580 | { |
1581 | uint32_t crc; | |
1582 | int carry, i, j; | |
1583 | uint8_t b; | |
1584 | ||
1585 | crc = 0xffffffff; | |
eaba8f34 MCA |
1586 | for (i = 0; i < len; i++) { |
1587 | b = *p++; | |
7fc8d918 JW |
1588 | for (j = 0; j < 8; j++) { |
1589 | carry = ((crc & 0x80000000L) ? 1 : 0) ^ (b & 0x01); | |
1590 | crc <<= 1; | |
1591 | b >>= 1; | |
1592 | if (carry) { | |
eaba8f34 | 1593 | crc = ((crc ^ POLYNOMIAL_BE) | carry); |
7fc8d918 JW |
1594 | } |
1595 | } | |
1596 | } | |
eaba8f34 MCA |
1597 | |
1598 | return crc; | |
1599 | } | |
1600 | ||
f1a7deb9 MCA |
1601 | uint32_t net_crc32_le(const uint8_t *p, int len) |
1602 | { | |
1603 | uint32_t crc; | |
1604 | int carry, i, j; | |
1605 | uint8_t b; | |
1606 | ||
1607 | crc = 0xffffffff; | |
1608 | for (i = 0; i < len; i++) { | |
1609 | b = *p++; | |
1610 | for (j = 0; j < 8; j++) { | |
1611 | carry = (crc & 0x1) ^ (b & 0x01); | |
1612 | crc >>= 1; | |
1613 | b >>= 1; | |
1614 | if (carry) { | |
1615 | crc ^= POLYNOMIAL_LE; | |
1616 | } | |
1617 | } | |
1618 | } | |
1619 | ||
1620 | return crc; | |
1621 | } | |
1622 | ||
4d454574 PB |
1623 | QemuOptsList qemu_netdev_opts = { |
1624 | .name = "netdev", | |
1625 | .implied_opt_name = "type", | |
1626 | .head = QTAILQ_HEAD_INITIALIZER(qemu_netdev_opts.head), | |
1627 | .desc = { | |
1628 | /* | |
1629 | * no elements => accept any params | |
1630 | * validation will happen later | |
1631 | */ | |
1632 | { /* end of list */ } | |
1633 | }, | |
1634 | }; | |
1635 | ||
1636 | QemuOptsList qemu_net_opts = { | |
1637 | .name = "net", | |
1638 | .implied_opt_name = "type", | |
1639 | .head = QTAILQ_HEAD_INITIALIZER(qemu_net_opts.head), | |
1640 | .desc = { | |
1641 | /* | |
1642 | * no elements => accept any params | |
1643 | * validation will happen later | |
1644 | */ | |
1645 | { /* end of list */ } | |
1646 | }, | |
1647 | }; | |
16a3df40 ZC |
1648 | |
1649 | void net_socket_rs_init(SocketReadState *rs, | |
3cde5ea2 ZC |
1650 | SocketReadStateFinalize *finalize, |
1651 | bool vnet_hdr) | |
16a3df40 ZC |
1652 | { |
1653 | rs->state = 0; | |
3cde5ea2 | 1654 | rs->vnet_hdr = vnet_hdr; |
16a3df40 ZC |
1655 | rs->index = 0; |
1656 | rs->packet_len = 0; | |
3cde5ea2 | 1657 | rs->vnet_hdr_len = 0; |
16a3df40 ZC |
1658 | memset(rs->buf, 0, sizeof(rs->buf)); |
1659 | rs->finalize = finalize; | |
1660 | } | |
1661 | ||
1662 | /* | |
1663 | * Returns | |
e9e0a585 ZC |
1664 | * 0: success |
1665 | * -1: error occurs | |
16a3df40 ZC |
1666 | */ |
1667 | int net_fill_rstate(SocketReadState *rs, const uint8_t *buf, int size) | |
1668 | { | |
1669 | unsigned int l; | |
1670 | ||
1671 | while (size > 0) { | |
3cde5ea2 ZC |
1672 | /* Reassemble a packet from the network. |
1673 | * 0 = getting length. | |
1674 | * 1 = getting vnet header length. | |
1675 | * 2 = getting data. | |
1676 | */ | |
1677 | switch (rs->state) { | |
16a3df40 ZC |
1678 | case 0: |
1679 | l = 4 - rs->index; | |
1680 | if (l > size) { | |
1681 | l = size; | |
1682 | } | |
1683 | memcpy(rs->buf + rs->index, buf, l); | |
1684 | buf += l; | |
1685 | size -= l; | |
1686 | rs->index += l; | |
1687 | if (rs->index == 4) { | |
1688 | /* got length */ | |
1689 | rs->packet_len = ntohl(*(uint32_t *)rs->buf); | |
1690 | rs->index = 0; | |
3cde5ea2 ZC |
1691 | if (rs->vnet_hdr) { |
1692 | rs->state = 1; | |
1693 | } else { | |
1694 | rs->state = 2; | |
1695 | rs->vnet_hdr_len = 0; | |
1696 | } | |
16a3df40 ZC |
1697 | } |
1698 | break; | |
1699 | case 1: | |
3cde5ea2 ZC |
1700 | l = 4 - rs->index; |
1701 | if (l > size) { | |
1702 | l = size; | |
1703 | } | |
1704 | memcpy(rs->buf + rs->index, buf, l); | |
1705 | buf += l; | |
1706 | size -= l; | |
1707 | rs->index += l; | |
1708 | if (rs->index == 4) { | |
1709 | /* got vnet header length */ | |
1710 | rs->vnet_hdr_len = ntohl(*(uint32_t *)rs->buf); | |
1711 | rs->index = 0; | |
1712 | rs->state = 2; | |
1713 | } | |
1714 | break; | |
1715 | case 2: | |
16a3df40 ZC |
1716 | l = rs->packet_len - rs->index; |
1717 | if (l > size) { | |
1718 | l = size; | |
1719 | } | |
1720 | if (rs->index + l <= sizeof(rs->buf)) { | |
1721 | memcpy(rs->buf + rs->index, buf, l); | |
1722 | } else { | |
1723 | fprintf(stderr, "serious error: oversized packet received," | |
1724 | "connection terminated.\n"); | |
1725 | rs->index = rs->state = 0; | |
1726 | return -1; | |
1727 | } | |
1728 | ||
1729 | rs->index += l; | |
1730 | buf += l; | |
1731 | size -= l; | |
1732 | if (rs->index >= rs->packet_len) { | |
1733 | rs->index = 0; | |
1734 | rs->state = 0; | |
e79cd406 DB |
1735 | assert(rs->finalize); |
1736 | rs->finalize(rs); | |
16a3df40 ZC |
1737 | } |
1738 | break; | |
1739 | } | |
1740 | } | |
e9e0a585 ZC |
1741 | |
1742 | assert(size == 0); | |
16a3df40 ZC |
1743 | return 0; |
1744 | } |