]>
Commit | Line | Data |
---|---|---|
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 | */ | |
63a01ef8 AL |
24 | #include <unistd.h> |
25 | #include <fcntl.h> | |
26 | #include <signal.h> | |
27 | #include <time.h> | |
28 | #include <errno.h> | |
29 | #include <sys/time.h> | |
30 | #include <zlib.h> | |
31 | ||
71e72a19 | 32 | /* Needed early for CONFIG_BSD etc. */ |
d40cdb10 BS |
33 | #include "config-host.h" |
34 | ||
63a01ef8 AL |
35 | #ifndef _WIN32 |
36 | #include <sys/times.h> | |
37 | #include <sys/wait.h> | |
38 | #include <termios.h> | |
39 | #include <sys/mman.h> | |
40 | #include <sys/ioctl.h> | |
24646c7e | 41 | #include <sys/resource.h> |
63a01ef8 AL |
42 | #include <sys/socket.h> |
43 | #include <netinet/in.h> | |
24646c7e BS |
44 | #include <net/if.h> |
45 | #ifdef __NetBSD__ | |
46 | #include <net/if_tap.h> | |
47 | #endif | |
48 | #ifdef __linux__ | |
49 | #include <linux/if_tun.h> | |
50 | #endif | |
51 | #include <arpa/inet.h> | |
63a01ef8 AL |
52 | #include <dirent.h> |
53 | #include <netdb.h> | |
54 | #include <sys/select.h> | |
71e72a19 | 55 | #ifdef CONFIG_BSD |
63a01ef8 | 56 | #include <sys/stat.h> |
c5e97233 | 57 | #if defined(__FreeBSD__) || defined(__DragonFly__) |
63a01ef8 | 58 | #include <libutil.h> |
24646c7e BS |
59 | #else |
60 | #include <util.h> | |
63a01ef8 AL |
61 | #endif |
62 | #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__) | |
63 | #include <freebsd/stdlib.h> | |
64 | #else | |
65 | #ifdef __linux__ | |
63a01ef8 AL |
66 | #include <pty.h> |
67 | #include <malloc.h> | |
68 | #include <linux/rtc.h> | |
69 | ||
70 | /* For the benefit of older linux systems which don't supply it, | |
71 | we use a local copy of hpet.h. */ | |
72 | /* #include <linux/hpet.h> */ | |
73 | #include "hpet.h" | |
74 | ||
75 | #include <linux/ppdev.h> | |
76 | #include <linux/parport.h> | |
77 | #endif | |
78 | #ifdef __sun__ | |
79 | #include <sys/stat.h> | |
80 | #include <sys/ethernet.h> | |
81 | #include <sys/sockio.h> | |
82 | #include <netinet/arp.h> | |
83 | #include <netinet/in.h> | |
84 | #include <netinet/in_systm.h> | |
85 | #include <netinet/ip.h> | |
86 | #include <netinet/ip_icmp.h> // must come after ip.h | |
87 | #include <netinet/udp.h> | |
88 | #include <netinet/tcp.h> | |
89 | #include <net/if.h> | |
90 | #include <syslog.h> | |
91 | #include <stropts.h> | |
92 | #endif | |
93 | #endif | |
94 | #endif | |
95 | ||
63a01ef8 AL |
96 | #if defined(__OpenBSD__) |
97 | #include <util.h> | |
98 | #endif | |
99 | ||
100 | #if defined(CONFIG_VDE) | |
101 | #include <libvdeplug.h> | |
102 | #endif | |
103 | ||
511d2b14 BS |
104 | #include "qemu-common.h" |
105 | #include "net.h" | |
106 | #include "monitor.h" | |
107 | #include "sysemu.h" | |
108 | #include "qemu-timer.h" | |
109 | #include "qemu-char.h" | |
110 | #include "audio/audio.h" | |
111 | #include "qemu_socket.h" | |
bb9ea79e | 112 | #include "qemu-log.h" |
511d2b14 | 113 | |
d918f23e | 114 | #include "slirp/libslirp.h" |
72cf2d4f | 115 | #include "qemu-queue.h" |
511d2b14 BS |
116 | |
117 | ||
63a01ef8 AL |
118 | static VLANState *first_vlan; |
119 | ||
120 | /***********************************************************/ | |
121 | /* network device redirectors */ | |
122 | ||
123 | #if defined(DEBUG_NET) || defined(DEBUG_SLIRP) | |
124 | static void hex_dump(FILE *f, const uint8_t *buf, int size) | |
125 | { | |
126 | int len, i, j, c; | |
127 | ||
128 | for(i=0;i<size;i+=16) { | |
129 | len = size - i; | |
130 | if (len > 16) | |
131 | len = 16; | |
132 | fprintf(f, "%08x ", i); | |
133 | for(j=0;j<16;j++) { | |
134 | if (j < len) | |
135 | fprintf(f, " %02x", buf[i+j]); | |
136 | else | |
137 | fprintf(f, " "); | |
138 | } | |
139 | fprintf(f, " "); | |
140 | for(j=0;j<len;j++) { | |
141 | c = buf[i+j]; | |
142 | if (c < ' ' || c > '~') | |
143 | c = '.'; | |
144 | fprintf(f, "%c", c); | |
145 | } | |
146 | fprintf(f, "\n"); | |
147 | } | |
148 | } | |
149 | #endif | |
150 | ||
151 | static int parse_macaddr(uint8_t *macaddr, const char *p) | |
152 | { | |
153 | int i; | |
154 | char *last_char; | |
155 | long int offset; | |
156 | ||
157 | errno = 0; | |
158 | offset = strtol(p, &last_char, 0); | |
159 | if (0 == errno && '\0' == *last_char && | |
160 | offset >= 0 && offset <= 0xFFFFFF) { | |
161 | macaddr[3] = (offset & 0xFF0000) >> 16; | |
162 | macaddr[4] = (offset & 0xFF00) >> 8; | |
163 | macaddr[5] = offset & 0xFF; | |
164 | return 0; | |
165 | } else { | |
166 | for(i = 0; i < 6; i++) { | |
167 | macaddr[i] = strtol(p, (char **)&p, 16); | |
168 | if (i == 5) { | |
169 | if (*p != '\0') | |
170 | return -1; | |
171 | } else { | |
172 | if (*p != ':' && *p != '-') | |
173 | return -1; | |
174 | p++; | |
175 | } | |
176 | } | |
177 | return 0; | |
178 | } | |
179 | ||
180 | return -1; | |
181 | } | |
182 | ||
183 | static int get_str_sep(char *buf, int buf_size, const char **pp, int sep) | |
184 | { | |
185 | const char *p, *p1; | |
186 | int len; | |
187 | p = *pp; | |
188 | p1 = strchr(p, sep); | |
189 | if (!p1) | |
190 | return -1; | |
191 | len = p1 - p; | |
192 | p1++; | |
193 | if (buf_size > 0) { | |
194 | if (len > buf_size - 1) | |
195 | len = buf_size - 1; | |
196 | memcpy(buf, p, len); | |
197 | buf[len] = '\0'; | |
198 | } | |
199 | *pp = p1; | |
200 | return 0; | |
201 | } | |
202 | ||
203 | int parse_host_src_port(struct sockaddr_in *haddr, | |
204 | struct sockaddr_in *saddr, | |
205 | const char *input_str) | |
206 | { | |
207 | char *str = strdup(input_str); | |
208 | char *host_str = str; | |
209 | char *src_str; | |
210 | const char *src_str2; | |
211 | char *ptr; | |
212 | ||
213 | /* | |
214 | * Chop off any extra arguments at the end of the string which | |
215 | * would start with a comma, then fill in the src port information | |
216 | * if it was provided else use the "any address" and "any port". | |
217 | */ | |
218 | if ((ptr = strchr(str,','))) | |
219 | *ptr = '\0'; | |
220 | ||
221 | if ((src_str = strchr(input_str,'@'))) { | |
222 | *src_str = '\0'; | |
223 | src_str++; | |
224 | } | |
225 | ||
226 | if (parse_host_port(haddr, host_str) < 0) | |
227 | goto fail; | |
228 | ||
229 | src_str2 = src_str; | |
230 | if (!src_str || *src_str == '\0') | |
231 | src_str2 = ":0"; | |
232 | ||
233 | if (parse_host_port(saddr, src_str2) < 0) | |
234 | goto fail; | |
235 | ||
236 | free(str); | |
237 | return(0); | |
238 | ||
239 | fail: | |
240 | free(str); | |
241 | return -1; | |
242 | } | |
243 | ||
244 | int parse_host_port(struct sockaddr_in *saddr, const char *str) | |
245 | { | |
246 | char buf[512]; | |
247 | struct hostent *he; | |
248 | const char *p, *r; | |
249 | int port; | |
250 | ||
251 | p = str; | |
252 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) | |
253 | return -1; | |
254 | saddr->sin_family = AF_INET; | |
255 | if (buf[0] == '\0') { | |
256 | saddr->sin_addr.s_addr = 0; | |
257 | } else { | |
cd390083 | 258 | if (qemu_isdigit(buf[0])) { |
63a01ef8 AL |
259 | if (!inet_aton(buf, &saddr->sin_addr)) |
260 | return -1; | |
261 | } else { | |
262 | if ((he = gethostbyname(buf)) == NULL) | |
263 | return - 1; | |
264 | saddr->sin_addr = *(struct in_addr *)he->h_addr; | |
265 | } | |
266 | } | |
267 | port = strtol(p, (char **)&r, 0); | |
268 | if (r == p) | |
269 | return -1; | |
270 | saddr->sin_port = htons(port); | |
271 | return 0; | |
272 | } | |
273 | ||
7cb7434b AL |
274 | void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]) |
275 | { | |
276 | snprintf(vc->info_str, sizeof(vc->info_str), | |
4dda4063 AL |
277 | "model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x", |
278 | vc->model, | |
7cb7434b AL |
279 | macaddr[0], macaddr[1], macaddr[2], |
280 | macaddr[3], macaddr[4], macaddr[5]); | |
281 | } | |
282 | ||
676cff29 AL |
283 | static char *assign_name(VLANClientState *vc1, const char *model) |
284 | { | |
285 | VLANState *vlan; | |
286 | char buf[256]; | |
287 | int id = 0; | |
288 | ||
289 | for (vlan = first_vlan; vlan; vlan = vlan->next) { | |
290 | VLANClientState *vc; | |
291 | ||
292 | for (vc = vlan->first_client; vc; vc = vc->next) | |
293 | if (vc != vc1 && strcmp(vc->model, model) == 0) | |
294 | id++; | |
295 | } | |
296 | ||
297 | snprintf(buf, sizeof(buf), "%s.%d", model, id); | |
298 | ||
02374aa0 | 299 | return qemu_strdup(buf); |
676cff29 AL |
300 | } |
301 | ||
63a01ef8 | 302 | VLANClientState *qemu_new_vlan_client(VLANState *vlan, |
bf38c1a0 | 303 | const char *model, |
7a9f6e4a | 304 | const char *name, |
cda9046b MM |
305 | NetCanReceive *can_receive, |
306 | NetReceive *receive, | |
307 | NetReceiveIOV *receive_iov, | |
b946a153 | 308 | NetCleanup *cleanup, |
63a01ef8 AL |
309 | void *opaque) |
310 | { | |
311 | VLANClientState *vc, **pvc; | |
312 | vc = qemu_mallocz(sizeof(VLANClientState)); | |
02374aa0 | 313 | vc->model = qemu_strdup(model); |
7a9f6e4a | 314 | if (name) |
02374aa0 | 315 | vc->name = qemu_strdup(name); |
7a9f6e4a AL |
316 | else |
317 | vc->name = assign_name(vc, model); | |
cda9046b MM |
318 | vc->can_receive = can_receive; |
319 | vc->receive = receive; | |
320 | vc->receive_iov = receive_iov; | |
b946a153 | 321 | vc->cleanup = cleanup; |
63a01ef8 AL |
322 | vc->opaque = opaque; |
323 | vc->vlan = vlan; | |
324 | ||
325 | vc->next = NULL; | |
326 | pvc = &vlan->first_client; | |
327 | while (*pvc != NULL) | |
328 | pvc = &(*pvc)->next; | |
329 | *pvc = vc; | |
330 | return vc; | |
331 | } | |
332 | ||
333 | void qemu_del_vlan_client(VLANClientState *vc) | |
334 | { | |
335 | VLANClientState **pvc = &vc->vlan->first_client; | |
336 | ||
337 | while (*pvc != NULL) | |
338 | if (*pvc == vc) { | |
339 | *pvc = vc->next; | |
b946a153 AL |
340 | if (vc->cleanup) { |
341 | vc->cleanup(vc); | |
342 | } | |
02374aa0 MM |
343 | qemu_free(vc->name); |
344 | qemu_free(vc->model); | |
dad35419 | 345 | qemu_free(vc); |
63a01ef8 AL |
346 | break; |
347 | } else | |
348 | pvc = &(*pvc)->next; | |
349 | } | |
350 | ||
8b13c4a7 AL |
351 | VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque) |
352 | { | |
353 | VLANClientState **pvc = &vlan->first_client; | |
354 | ||
355 | while (*pvc != NULL) | |
356 | if ((*pvc)->opaque == opaque) | |
357 | return *pvc; | |
358 | else | |
359 | pvc = &(*pvc)->next; | |
360 | ||
361 | return NULL; | |
362 | } | |
363 | ||
1a609520 JK |
364 | static VLANClientState * |
365 | qemu_find_vlan_client_by_name(Monitor *mon, int vlan_id, | |
366 | const char *client_str) | |
367 | { | |
368 | VLANState *vlan; | |
369 | VLANClientState *vc; | |
370 | ||
371 | vlan = qemu_find_vlan(vlan_id, 0); | |
372 | if (!vlan) { | |
373 | monitor_printf(mon, "unknown VLAN %d\n", vlan_id); | |
374 | return NULL; | |
375 | } | |
376 | ||
377 | for (vc = vlan->first_client; vc != NULL; vc = vc->next) { | |
378 | if (!strcmp(vc->name, client_str)) { | |
379 | break; | |
380 | } | |
381 | } | |
382 | if (!vc) { | |
383 | monitor_printf(mon, "can't find device %s on VLAN %d\n", | |
384 | client_str, vlan_id); | |
385 | } | |
386 | ||
387 | return vc; | |
388 | } | |
389 | ||
2e1e0641 | 390 | int qemu_can_send_packet(VLANClientState *sender) |
63a01ef8 | 391 | { |
2e1e0641 | 392 | VLANState *vlan = sender->vlan; |
63a01ef8 AL |
393 | VLANClientState *vc; |
394 | ||
2e1e0641 MM |
395 | for (vc = vlan->first_client; vc != NULL; vc = vc->next) { |
396 | if (vc == sender) { | |
397 | continue; | |
398 | } | |
399 | ||
cda9046b | 400 | /* no can_receive() handler, they can always receive */ |
e3f5ec2b | 401 | if (!vc->can_receive || vc->can_receive(vc)) { |
2e1e0641 | 402 | return 1; |
63a01ef8 AL |
403 | } |
404 | } | |
405 | return 0; | |
406 | } | |
407 | ||
3e021d40 | 408 | static int |
764a4d1d | 409 | qemu_deliver_packet(VLANClientState *sender, const uint8_t *buf, int size) |
63a01ef8 | 410 | { |
63a01ef8 | 411 | VLANClientState *vc; |
3e021d40 | 412 | int ret = -1; |
63a01ef8 | 413 | |
e94667b9 MM |
414 | sender->vlan->delivering = 1; |
415 | ||
764a4d1d | 416 | for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) { |
3e021d40 MM |
417 | ssize_t len; |
418 | ||
419 | if (vc == sender) { | |
420 | continue; | |
764a4d1d | 421 | } |
3e021d40 MM |
422 | |
423 | if (vc->link_down) { | |
424 | ret = size; | |
425 | continue; | |
426 | } | |
427 | ||
428 | len = vc->receive(vc, buf, size); | |
429 | ||
430 | ret = (ret >= 0) ? ret : len; | |
764a4d1d | 431 | } |
3e021d40 | 432 | |
e94667b9 MM |
433 | sender->vlan->delivering = 0; |
434 | ||
3e021d40 | 435 | return ret; |
764a4d1d AL |
436 | } |
437 | ||
8cad5516 MM |
438 | void qemu_purge_queued_packets(VLANClientState *vc) |
439 | { | |
9da43187 | 440 | VLANPacket *packet, *next; |
8cad5516 | 441 | |
72cf2d4f | 442 | QTAILQ_FOREACH_SAFE(packet, &vc->vlan->send_queue, entry, next) { |
8cad5516 | 443 | if (packet->sender == vc) { |
72cf2d4f | 444 | QTAILQ_REMOVE(&vc->vlan->send_queue, packet, entry); |
8cad5516 | 445 | qemu_free(packet); |
8cad5516 MM |
446 | } |
447 | } | |
448 | } | |
449 | ||
f3b6c7fc | 450 | void qemu_flush_queued_packets(VLANClientState *vc) |
e94667b9 | 451 | { |
72cf2d4f | 452 | while (!QTAILQ_EMPTY(&vc->vlan->send_queue)) { |
9da43187 | 453 | VLANPacket *packet; |
f3b6c7fc MM |
454 | int ret; |
455 | ||
72cf2d4f BS |
456 | packet = QTAILQ_FIRST(&vc->vlan->send_queue); |
457 | QTAILQ_REMOVE(&vc->vlan->send_queue, packet, entry); | |
f3b6c7fc MM |
458 | |
459 | ret = qemu_deliver_packet(packet->sender, packet->data, packet->size); | |
460 | if (ret == 0 && packet->sent_cb != NULL) { | |
72cf2d4f | 461 | QTAILQ_INSERT_HEAD(&vc->vlan->send_queue, packet, entry); |
f3b6c7fc MM |
462 | break; |
463 | } | |
464 | ||
465 | if (packet->sent_cb) | |
783527a9 | 466 | packet->sent_cb(packet->sender, ret); |
f3b6c7fc | 467 | |
e94667b9 MM |
468 | qemu_free(packet); |
469 | } | |
470 | } | |
471 | ||
f3b6c7fc MM |
472 | static void qemu_enqueue_packet(VLANClientState *sender, |
473 | const uint8_t *buf, int size, | |
474 | NetPacketSent *sent_cb) | |
e94667b9 MM |
475 | { |
476 | VLANPacket *packet; | |
477 | ||
478 | packet = qemu_malloc(sizeof(VLANPacket) + size); | |
e94667b9 MM |
479 | packet->sender = sender; |
480 | packet->size = size; | |
f3b6c7fc | 481 | packet->sent_cb = sent_cb; |
e94667b9 | 482 | memcpy(packet->data, buf, size); |
9da43187 | 483 | |
72cf2d4f | 484 | QTAILQ_INSERT_TAIL(&sender->vlan->send_queue, packet, entry); |
e94667b9 MM |
485 | } |
486 | ||
f3b6c7fc MM |
487 | ssize_t qemu_send_packet_async(VLANClientState *sender, |
488 | const uint8_t *buf, int size, | |
489 | NetPacketSent *sent_cb) | |
764a4d1d | 490 | { |
f3b6c7fc | 491 | int ret; |
764a4d1d | 492 | |
f3b6c7fc MM |
493 | if (sender->link_down) { |
494 | return size; | |
495 | } | |
436e5e53 | 496 | |
63a01ef8 | 497 | #ifdef DEBUG_NET |
f3b6c7fc | 498 | printf("vlan %d send:\n", sender->vlan->id); |
63a01ef8 AL |
499 | hex_dump(stdout, buf, size); |
500 | #endif | |
f3b6c7fc MM |
501 | |
502 | if (sender->vlan->delivering) { | |
503 | qemu_enqueue_packet(sender, buf, size, NULL); | |
504 | return size; | |
505 | } | |
506 | ||
507 | ret = qemu_deliver_packet(sender, buf, size); | |
508 | if (ret == 0 && sent_cb != NULL) { | |
509 | qemu_enqueue_packet(sender, buf, size, sent_cb); | |
510 | return 0; | |
63a01ef8 | 511 | } |
e94667b9 | 512 | |
f3b6c7fc MM |
513 | qemu_flush_queued_packets(sender); |
514 | ||
515 | return ret; | |
516 | } | |
517 | ||
518 | void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size) | |
519 | { | |
520 | qemu_send_packet_async(vc, buf, size, NULL); | |
63a01ef8 AL |
521 | } |
522 | ||
fbe78f4f AL |
523 | static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov, |
524 | int iovcnt) | |
525 | { | |
526 | uint8_t buffer[4096]; | |
527 | size_t offset = 0; | |
528 | int i; | |
529 | ||
530 | for (i = 0; i < iovcnt; i++) { | |
531 | size_t len; | |
532 | ||
533 | len = MIN(sizeof(buffer) - offset, iov[i].iov_len); | |
534 | memcpy(buffer + offset, iov[i].iov_base, len); | |
535 | offset += len; | |
536 | } | |
537 | ||
f3b6c7fc | 538 | return vc->receive(vc, buffer, offset); |
fbe78f4f AL |
539 | } |
540 | ||
e0e7877a AL |
541 | static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt) |
542 | { | |
543 | size_t offset = 0; | |
544 | int i; | |
545 | ||
546 | for (i = 0; i < iovcnt; i++) | |
547 | offset += iov[i].iov_len; | |
548 | return offset; | |
549 | } | |
550 | ||
e94667b9 MM |
551 | static int qemu_deliver_packet_iov(VLANClientState *sender, |
552 | const struct iovec *iov, int iovcnt) | |
fbe78f4f | 553 | { |
fbe78f4f | 554 | VLANClientState *vc; |
e94667b9 MM |
555 | int ret = -1; |
556 | ||
557 | sender->vlan->delivering = 1; | |
558 | ||
559 | for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) { | |
560 | ssize_t len; | |
561 | ||
562 | if (vc == sender) { | |
563 | continue; | |
564 | } | |
565 | ||
566 | if (vc->link_down) { | |
567 | ret = calc_iov_length(iov, iovcnt); | |
568 | continue; | |
569 | } | |
570 | ||
571 | if (vc->receive_iov) { | |
572 | len = vc->receive_iov(vc, iov, iovcnt); | |
573 | } else { | |
574 | len = vc_sendv_compat(vc, iov, iovcnt); | |
575 | } | |
576 | ||
577 | ret = (ret >= 0) ? ret : len; | |
578 | } | |
579 | ||
580 | sender->vlan->delivering = 0; | |
581 | ||
582 | return ret; | |
583 | } | |
584 | ||
585 | static ssize_t qemu_enqueue_packet_iov(VLANClientState *sender, | |
f3b6c7fc MM |
586 | const struct iovec *iov, int iovcnt, |
587 | NetPacketSent *sent_cb) | |
e94667b9 | 588 | { |
c27ff608 | 589 | VLANPacket *packet; |
e94667b9 | 590 | size_t max_len = 0; |
c27ff608 | 591 | int i; |
fbe78f4f | 592 | |
e94667b9 | 593 | max_len = calc_iov_length(iov, iovcnt); |
e0e7877a | 594 | |
e94667b9 | 595 | packet = qemu_malloc(sizeof(VLANPacket) + max_len); |
e94667b9 | 596 | packet->sender = sender; |
f3b6c7fc | 597 | packet->sent_cb = sent_cb; |
e94667b9 | 598 | packet->size = 0; |
c27ff608 | 599 | |
e94667b9 MM |
600 | for (i = 0; i < iovcnt; i++) { |
601 | size_t len = iov[i].iov_len; | |
c27ff608 | 602 | |
e94667b9 MM |
603 | memcpy(packet->data + packet->size, iov[i].iov_base, len); |
604 | packet->size += len; | |
605 | } | |
fbe78f4f | 606 | |
72cf2d4f | 607 | QTAILQ_INSERT_TAIL(&sender->vlan->send_queue, packet, entry); |
fbe78f4f | 608 | |
e94667b9 MM |
609 | return packet->size; |
610 | } | |
fbe78f4f | 611 | |
f3b6c7fc MM |
612 | ssize_t qemu_sendv_packet_async(VLANClientState *sender, |
613 | const struct iovec *iov, int iovcnt, | |
614 | NetPacketSent *sent_cb) | |
e94667b9 MM |
615 | { |
616 | int ret; | |
617 | ||
618 | if (sender->link_down) { | |
619 | return calc_iov_length(iov, iovcnt); | |
620 | } | |
621 | ||
622 | if (sender->vlan->delivering) { | |
f3b6c7fc | 623 | return qemu_enqueue_packet_iov(sender, iov, iovcnt, NULL); |
fbe78f4f AL |
624 | } |
625 | ||
e94667b9 | 626 | ret = qemu_deliver_packet_iov(sender, iov, iovcnt); |
f3b6c7fc MM |
627 | if (ret == 0 && sent_cb != NULL) { |
628 | qemu_enqueue_packet_iov(sender, iov, iovcnt, sent_cb); | |
629 | return 0; | |
630 | } | |
e94667b9 MM |
631 | |
632 | qemu_flush_queued_packets(sender); | |
633 | ||
634 | return ret; | |
fbe78f4f AL |
635 | } |
636 | ||
f3b6c7fc MM |
637 | ssize_t |
638 | qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov, int iovcnt) | |
639 | { | |
640 | return qemu_sendv_packet_async(vc, iov, iovcnt, NULL); | |
641 | } | |
642 | ||
10ae5a7a JK |
643 | static void config_error(Monitor *mon, const char *fmt, ...) |
644 | { | |
645 | va_list ap; | |
646 | ||
647 | va_start(ap, fmt); | |
648 | if (mon) { | |
649 | monitor_vprintf(mon, fmt, ap); | |
650 | } else { | |
651 | fprintf(stderr, "qemu: "); | |
652 | vfprintf(stderr, fmt, ap); | |
10ae5a7a JK |
653 | } |
654 | va_end(ap); | |
655 | } | |
656 | ||
63a01ef8 AL |
657 | #if defined(CONFIG_SLIRP) |
658 | ||
659 | /* slirp network adapter */ | |
660 | ||
c92ef6a2 JK |
661 | #define SLIRP_CFG_HOSTFWD 1 |
662 | #define SLIRP_CFG_LEGACY 2 | |
ad196a9d | 663 | |
b8e8af38 JK |
664 | struct slirp_config_str { |
665 | struct slirp_config_str *next; | |
ad196a9d JK |
666 | int flags; |
667 | char str[1024]; | |
c92ef6a2 | 668 | int legacy_format; |
b8e8af38 JK |
669 | }; |
670 | ||
9f8bd042 | 671 | typedef struct SlirpState { |
72cf2d4f | 672 | QTAILQ_ENTRY(SlirpState) entry; |
9f8bd042 JK |
673 | VLANClientState *vc; |
674 | Slirp *slirp; | |
28432466 JK |
675 | #ifndef _WIN32 |
676 | char smb_dir[128]; | |
677 | #endif | |
9f8bd042 JK |
678 | } SlirpState; |
679 | ||
ad196a9d JK |
680 | static struct slirp_config_str *slirp_configs; |
681 | const char *legacy_tftp_prefix; | |
682 | const char *legacy_bootp_filename; | |
72cf2d4f BS |
683 | static QTAILQ_HEAD(slirp_stacks, SlirpState) slirp_stacks = |
684 | QTAILQ_HEAD_INITIALIZER(slirp_stacks); | |
63a01ef8 | 685 | |
0752706d MA |
686 | static int slirp_hostfwd(SlirpState *s, Monitor *mon, const char *redir_str, |
687 | int legacy_format); | |
688 | static int slirp_guestfwd(SlirpState *s, Monitor *mon, const char *config_str, | |
3c6a0580 | 689 | int legacy_format); |
ad196a9d | 690 | |
c5b76b38 | 691 | #ifndef _WIN32 |
ad196a9d JK |
692 | static const char *legacy_smb_export; |
693 | ||
0752706d MA |
694 | static int slirp_smb(SlirpState *s, Monitor *mon, const char *exported_dir, |
695 | struct in_addr vserver_addr); | |
28432466 JK |
696 | static void slirp_smb_cleanup(SlirpState *s); |
697 | #else | |
698 | static inline void slirp_smb_cleanup(SlirpState *s) { } | |
c5b76b38 | 699 | #endif |
b8e8af38 | 700 | |
9f8bd042 | 701 | int slirp_can_output(void *opaque) |
63a01ef8 | 702 | { |
9f8bd042 JK |
703 | SlirpState *s = opaque; |
704 | ||
705 | return qemu_can_send_packet(s->vc); | |
63a01ef8 AL |
706 | } |
707 | ||
9f8bd042 | 708 | void slirp_output(void *opaque, const uint8_t *pkt, int pkt_len) |
63a01ef8 | 709 | { |
9f8bd042 JK |
710 | SlirpState *s = opaque; |
711 | ||
63a01ef8 AL |
712 | #ifdef DEBUG_SLIRP |
713 | printf("slirp output:\n"); | |
714 | hex_dump(stdout, pkt, pkt_len); | |
715 | #endif | |
9f8bd042 | 716 | qemu_send_packet(s->vc, pkt, pkt_len); |
63a01ef8 AL |
717 | } |
718 | ||
4f1c942b | 719 | static ssize_t slirp_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
63a01ef8 | 720 | { |
9f8bd042 JK |
721 | SlirpState *s = vc->opaque; |
722 | ||
63a01ef8 AL |
723 | #ifdef DEBUG_SLIRP |
724 | printf("slirp input:\n"); | |
725 | hex_dump(stdout, buf, size); | |
726 | #endif | |
9f8bd042 | 727 | slirp_input(s->slirp, buf, size); |
4f1c942b | 728 | return size; |
63a01ef8 AL |
729 | } |
730 | ||
8d6249a7 AL |
731 | static void net_slirp_cleanup(VLANClientState *vc) |
732 | { | |
ad0d8c4c JK |
733 | SlirpState *s = vc->opaque; |
734 | ||
735 | slirp_cleanup(s->slirp); | |
28432466 | 736 | slirp_smb_cleanup(s); |
72cf2d4f | 737 | QTAILQ_REMOVE(&slirp_stacks, s, entry); |
ad0d8c4c | 738 | qemu_free(s); |
8d6249a7 AL |
739 | } |
740 | ||
ad196a9d | 741 | static int net_slirp_init(Monitor *mon, VLANState *vlan, const char *model, |
c92ef6a2 JK |
742 | const char *name, int restricted, |
743 | const char *vnetwork, const char *vhost, | |
744 | const char *vhostname, const char *tftp_export, | |
745 | const char *bootfile, const char *vdhcp_start, | |
746 | const char *vnameserver, const char *smb_export, | |
747 | const char *vsmbserver) | |
63a01ef8 | 748 | { |
ad0d8c4c | 749 | /* default settings according to historic slirp */ |
8389e7f4 AL |
750 | struct in_addr net = { .s_addr = htonl(0x0a000200) }; /* 10.0.2.0 */ |
751 | struct in_addr mask = { .s_addr = htonl(0xffffff00) }; /* 255.255.255.0 */ | |
ad0d8c4c JK |
752 | struct in_addr host = { .s_addr = htonl(0x0a000202) }; /* 10.0.2.2 */ |
753 | struct in_addr dhcp = { .s_addr = htonl(0x0a00020f) }; /* 10.0.2.15 */ | |
754 | struct in_addr dns = { .s_addr = htonl(0x0a000203) }; /* 10.0.2.3 */ | |
c92ef6a2 | 755 | #ifndef _WIN32 |
ad0d8c4c | 756 | struct in_addr smbsrv = { .s_addr = 0 }; |
c92ef6a2 | 757 | #endif |
ad0d8c4c JK |
758 | SlirpState *s; |
759 | char buf[20]; | |
760 | uint32_t addr; | |
761 | int shift; | |
762 | char *end; | |
3a179c66 | 763 | struct slirp_config_str *config; |
ad0d8c4c JK |
764 | |
765 | if (!tftp_export) { | |
766 | tftp_export = legacy_tftp_prefix; | |
767 | } | |
768 | if (!bootfile) { | |
769 | bootfile = legacy_bootp_filename; | |
770 | } | |
c92ef6a2 | 771 | |
ad0d8c4c JK |
772 | if (vnetwork) { |
773 | if (get_str_sep(buf, sizeof(buf), &vnetwork, '/') < 0) { | |
774 | if (!inet_aton(vnetwork, &net)) { | |
775 | return -1; | |
776 | } | |
777 | addr = ntohl(net.s_addr); | |
778 | if (!(addr & 0x80000000)) { | |
779 | mask.s_addr = htonl(0xff000000); /* class A */ | |
780 | } else if ((addr & 0xfff00000) == 0xac100000) { | |
781 | mask.s_addr = htonl(0xfff00000); /* priv. 172.16.0.0/12 */ | |
782 | } else if ((addr & 0xc0000000) == 0x80000000) { | |
783 | mask.s_addr = htonl(0xffff0000); /* class B */ | |
784 | } else if ((addr & 0xffff0000) == 0xc0a80000) { | |
785 | mask.s_addr = htonl(0xffff0000); /* priv. 192.168.0.0/16 */ | |
786 | } else if ((addr & 0xffff0000) == 0xc6120000) { | |
787 | mask.s_addr = htonl(0xfffe0000); /* tests 198.18.0.0/15 */ | |
788 | } else if ((addr & 0xe0000000) == 0xe0000000) { | |
789 | mask.s_addr = htonl(0xffffff00); /* class C */ | |
c92ef6a2 | 790 | } else { |
ad0d8c4c JK |
791 | mask.s_addr = htonl(0xfffffff0); /* multicast/reserved */ |
792 | } | |
793 | } else { | |
794 | if (!inet_aton(buf, &net)) { | |
795 | return -1; | |
796 | } | |
797 | shift = strtol(vnetwork, &end, 10); | |
798 | if (*end != '\0') { | |
799 | if (!inet_aton(vnetwork, &mask)) { | |
c92ef6a2 | 800 | return -1; |
c92ef6a2 | 801 | } |
ad0d8c4c JK |
802 | } else if (shift < 4 || shift > 32) { |
803 | return -1; | |
804 | } else { | |
805 | mask.s_addr = htonl(0xffffffff << (32 - shift)); | |
c92ef6a2 | 806 | } |
c92ef6a2 | 807 | } |
ad0d8c4c JK |
808 | net.s_addr &= mask.s_addr; |
809 | host.s_addr = net.s_addr | (htonl(0x0202) & ~mask.s_addr); | |
810 | dhcp.s_addr = net.s_addr | (htonl(0x020f) & ~mask.s_addr); | |
811 | dns.s_addr = net.s_addr | (htonl(0x0203) & ~mask.s_addr); | |
812 | } | |
c92ef6a2 | 813 | |
ad0d8c4c JK |
814 | if (vhost && !inet_aton(vhost, &host)) { |
815 | return -1; | |
816 | } | |
817 | if ((host.s_addr & mask.s_addr) != net.s_addr) { | |
818 | return -1; | |
819 | } | |
c92ef6a2 | 820 | |
ad0d8c4c JK |
821 | if (vdhcp_start && !inet_aton(vdhcp_start, &dhcp)) { |
822 | return -1; | |
823 | } | |
824 | if ((dhcp.s_addr & mask.s_addr) != net.s_addr || | |
825 | dhcp.s_addr == host.s_addr || dhcp.s_addr == dns.s_addr) { | |
826 | return -1; | |
827 | } | |
c92ef6a2 | 828 | |
ad0d8c4c JK |
829 | if (vnameserver && !inet_aton(vnameserver, &dns)) { |
830 | return -1; | |
831 | } | |
832 | if ((dns.s_addr & mask.s_addr) != net.s_addr || | |
833 | dns.s_addr == host.s_addr) { | |
834 | return -1; | |
835 | } | |
c92ef6a2 JK |
836 | |
837 | #ifndef _WIN32 | |
ad0d8c4c JK |
838 | if (vsmbserver && !inet_aton(vsmbserver, &smbsrv)) { |
839 | return -1; | |
840 | } | |
c92ef6a2 JK |
841 | #endif |
842 | ||
ad0d8c4c JK |
843 | s = qemu_mallocz(sizeof(SlirpState)); |
844 | s->slirp = slirp_init(restricted, net, mask, host, vhostname, | |
845 | tftp_export, bootfile, dhcp, dns, s); | |
72cf2d4f | 846 | QTAILQ_INSERT_TAIL(&slirp_stacks, s, entry); |
b8e8af38 | 847 | |
3a179c66 | 848 | for (config = slirp_configs; config; config = config->next) { |
ad0d8c4c | 849 | if (config->flags & SLIRP_CFG_HOSTFWD) { |
0752706d MA |
850 | if (slirp_hostfwd(s, mon, config->str, |
851 | config->flags & SLIRP_CFG_LEGACY) < 0) | |
852 | return -1; | |
ad0d8c4c | 853 | } else { |
0752706d MA |
854 | if (slirp_guestfwd(s, mon, config->str, |
855 | config->flags & SLIRP_CFG_LEGACY) < 0) | |
856 | return -1; | |
b8e8af38 | 857 | } |
ad0d8c4c | 858 | } |
b8e8af38 | 859 | #ifndef _WIN32 |
ad0d8c4c JK |
860 | if (!smb_export) { |
861 | smb_export = legacy_smb_export; | |
862 | } | |
863 | if (smb_export) { | |
0752706d MA |
864 | if (slirp_smb(s, mon, smb_export, smbsrv) < 0) |
865 | return -1; | |
63a01ef8 | 866 | } |
ad0d8c4c | 867 | #endif |
b8e8af38 | 868 | |
9f8bd042 JK |
869 | s->vc = qemu_new_vlan_client(vlan, model, name, NULL, slirp_receive, NULL, |
870 | net_slirp_cleanup, s); | |
fc57bc57 JK |
871 | snprintf(s->vc->info_str, sizeof(s->vc->info_str), |
872 | "net=%s, restricted=%c", inet_ntoa(net), restricted ? 'y' : 'n'); | |
63a01ef8 AL |
873 | return 0; |
874 | } | |
875 | ||
f13b572c JK |
876 | static SlirpState *slirp_lookup(Monitor *mon, const char *vlan, |
877 | const char *stack) | |
878 | { | |
879 | VLANClientState *vc; | |
880 | ||
881 | if (vlan) { | |
882 | vc = qemu_find_vlan_client_by_name(mon, strtol(vlan, NULL, 0), stack); | |
883 | if (!vc) { | |
884 | return NULL; | |
885 | } | |
886 | if (strcmp(vc->model, "user")) { | |
887 | monitor_printf(mon, "invalid device specified\n"); | |
888 | return NULL; | |
889 | } | |
890 | return vc->opaque; | |
891 | } else { | |
72cf2d4f | 892 | if (QTAILQ_EMPTY(&slirp_stacks)) { |
f13b572c JK |
893 | monitor_printf(mon, "user mode network stack not in use\n"); |
894 | return NULL; | |
895 | } | |
72cf2d4f | 896 | return QTAILQ_FIRST(&slirp_stacks); |
f13b572c JK |
897 | } |
898 | } | |
899 | ||
1d4daa91 | 900 | void net_slirp_hostfwd_remove(Monitor *mon, const QDict *qdict) |
c1261d8d | 901 | { |
3c6a0580 | 902 | struct in_addr host_addr = { .s_addr = INADDR_ANY }; |
c1261d8d AG |
903 | int host_port; |
904 | char buf[256] = ""; | |
f13b572c JK |
905 | const char *src_str, *p; |
906 | SlirpState *s; | |
c1261d8d | 907 | int is_udp = 0; |
9c12a6f2 | 908 | int err; |
1d4daa91 LC |
909 | const char *arg1 = qdict_get_str(qdict, "arg1"); |
910 | const char *arg2 = qdict_get_try_str(qdict, "arg2"); | |
911 | const char *arg3 = qdict_get_try_str(qdict, "arg3"); | |
c1261d8d | 912 | |
f13b572c JK |
913 | if (arg2) { |
914 | s = slirp_lookup(mon, arg1, arg2); | |
915 | src_str = arg3; | |
916 | } else { | |
917 | s = slirp_lookup(mon, NULL, NULL); | |
918 | src_str = arg1; | |
919 | } | |
920 | if (!s) { | |
c1261d8d | 921 | return; |
f3546deb | 922 | } |
c1261d8d | 923 | |
3c6a0580 | 924 | if (!src_str || !src_str[0]) |
c1261d8d AG |
925 | goto fail_syntax; |
926 | ||
f13b572c | 927 | p = src_str; |
c1261d8d AG |
928 | get_str_sep(buf, sizeof(buf), &p, ':'); |
929 | ||
930 | if (!strcmp(buf, "tcp") || buf[0] == '\0') { | |
931 | is_udp = 0; | |
932 | } else if (!strcmp(buf, "udp")) { | |
933 | is_udp = 1; | |
934 | } else { | |
935 | goto fail_syntax; | |
936 | } | |
937 | ||
3c6a0580 JK |
938 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
939 | goto fail_syntax; | |
940 | } | |
941 | if (buf[0] != '\0' && !inet_aton(buf, &host_addr)) { | |
942 | goto fail_syntax; | |
943 | } | |
944 | ||
c1261d8d AG |
945 | host_port = atoi(p); |
946 | ||
72cf2d4f | 947 | err = slirp_remove_hostfwd(QTAILQ_FIRST(&slirp_stacks)->slirp, is_udp, |
9f8bd042 | 948 | host_addr, host_port); |
c1261d8d | 949 | |
9c12a6f2 JK |
950 | monitor_printf(mon, "host forwarding rule for %s %s\n", src_str, |
951 | err ? "removed" : "not found"); | |
c1261d8d AG |
952 | return; |
953 | ||
954 | fail_syntax: | |
955 | monitor_printf(mon, "invalid format\n"); | |
956 | } | |
957 | ||
0752706d MA |
958 | static int slirp_hostfwd(SlirpState *s, Monitor *mon, const char *redir_str, |
959 | int legacy_format) | |
63a01ef8 | 960 | { |
3c6a0580 | 961 | struct in_addr host_addr = { .s_addr = INADDR_ANY }; |
c92ef6a2 | 962 | struct in_addr guest_addr = { .s_addr = 0 }; |
63a01ef8 | 963 | int host_port, guest_port; |
b8e8af38 | 964 | const char *p; |
c92ef6a2 | 965 | char buf[256]; |
b8e8af38 | 966 | int is_udp; |
c92ef6a2 | 967 | char *end; |
1c6ed9f3 | 968 | |
63a01ef8 | 969 | p = redir_str; |
f13b572c | 970 | if (!p || get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
d4ebe193 | 971 | goto fail_syntax; |
b8e8af38 | 972 | } |
d4ebe193 | 973 | if (!strcmp(buf, "tcp") || buf[0] == '\0') { |
63a01ef8 AL |
974 | is_udp = 0; |
975 | } else if (!strcmp(buf, "udp")) { | |
976 | is_udp = 1; | |
977 | } else { | |
d4ebe193 | 978 | goto fail_syntax; |
63a01ef8 AL |
979 | } |
980 | ||
3c6a0580 JK |
981 | if (!legacy_format) { |
982 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
983 | goto fail_syntax; | |
984 | } | |
985 | if (buf[0] != '\0' && !inet_aton(buf, &host_addr)) { | |
986 | goto fail_syntax; | |
987 | } | |
988 | } | |
989 | ||
990 | if (get_str_sep(buf, sizeof(buf), &p, legacy_format ? ':' : '-') < 0) { | |
d4ebe193 | 991 | goto fail_syntax; |
b8e8af38 | 992 | } |
c92ef6a2 JK |
993 | host_port = strtol(buf, &end, 0); |
994 | if (*end != '\0' || host_port < 1 || host_port > 65535) { | |
d4ebe193 | 995 | goto fail_syntax; |
b8e8af38 | 996 | } |
63a01ef8 | 997 | |
b8e8af38 | 998 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
d4ebe193 | 999 | goto fail_syntax; |
b8e8af38 | 1000 | } |
c92ef6a2 | 1001 | if (buf[0] != '\0' && !inet_aton(buf, &guest_addr)) { |
d4ebe193 | 1002 | goto fail_syntax; |
b8e8af38 | 1003 | } |
63a01ef8 | 1004 | |
c92ef6a2 JK |
1005 | guest_port = strtol(p, &end, 0); |
1006 | if (*end != '\0' || guest_port < 1 || guest_port > 65535) { | |
d4ebe193 | 1007 | goto fail_syntax; |
b8e8af38 | 1008 | } |
63a01ef8 | 1009 | |
9f8bd042 JK |
1010 | if (slirp_add_hostfwd(s->slirp, is_udp, host_addr, host_port, guest_addr, |
1011 | guest_port) < 0) { | |
c92ef6a2 JK |
1012 | config_error(mon, "could not set up host forwarding rule '%s'\n", |
1013 | redir_str); | |
0752706d | 1014 | return -1; |
63a01ef8 | 1015 | } |
0752706d | 1016 | return 0; |
d4ebe193 AL |
1017 | |
1018 | fail_syntax: | |
c92ef6a2 | 1019 | config_error(mon, "invalid host forwarding rule '%s'\n", redir_str); |
0752706d | 1020 | return -1; |
63a01ef8 AL |
1021 | } |
1022 | ||
1d4daa91 | 1023 | void net_slirp_hostfwd_add(Monitor *mon, const QDict *qdict) |
b8e8af38 | 1024 | { |
f13b572c JK |
1025 | const char *redir_str; |
1026 | SlirpState *s; | |
1d4daa91 LC |
1027 | const char *arg1 = qdict_get_str(qdict, "arg1"); |
1028 | const char *arg2 = qdict_get_try_str(qdict, "arg2"); | |
1029 | const char *arg3 = qdict_get_try_str(qdict, "arg3"); | |
f13b572c JK |
1030 | |
1031 | if (arg2) { | |
1032 | s = slirp_lookup(mon, arg1, arg2); | |
1033 | redir_str = arg3; | |
1034 | } else { | |
1035 | s = slirp_lookup(mon, NULL, NULL); | |
1036 | redir_str = arg1; | |
1037 | } | |
1038 | if (s) { | |
1039 | slirp_hostfwd(s, mon, redir_str, 0); | |
b8e8af38 JK |
1040 | } |
1041 | ||
f3546deb JK |
1042 | } |
1043 | ||
0752706d | 1044 | int net_slirp_redir(const char *redir_str) |
f3546deb JK |
1045 | { |
1046 | struct slirp_config_str *config; | |
1047 | ||
72cf2d4f | 1048 | if (QTAILQ_EMPTY(&slirp_stacks)) { |
f3546deb JK |
1049 | config = qemu_malloc(sizeof(*config)); |
1050 | pstrcpy(config->str, sizeof(config->str), redir_str); | |
3c6a0580 | 1051 | config->flags = SLIRP_CFG_HOSTFWD | SLIRP_CFG_LEGACY; |
f3546deb JK |
1052 | config->next = slirp_configs; |
1053 | slirp_configs = config; | |
0752706d | 1054 | return 0; |
b8e8af38 JK |
1055 | } |
1056 | ||
0752706d | 1057 | return slirp_hostfwd(QTAILQ_FIRST(&slirp_stacks), NULL, redir_str, 1); |
b8e8af38 JK |
1058 | } |
1059 | ||
63a01ef8 AL |
1060 | #ifndef _WIN32 |
1061 | ||
63a01ef8 | 1062 | /* automatic user mode samba server configuration */ |
28432466 | 1063 | static void slirp_smb_cleanup(SlirpState *s) |
63a01ef8 | 1064 | { |
28432466 | 1065 | char cmd[128]; |
09c18925 | 1066 | |
28432466 JK |
1067 | if (s->smb_dir[0] != '\0') { |
1068 | snprintf(cmd, sizeof(cmd), "rm -rf %s", s->smb_dir); | |
1069 | system(cmd); | |
1070 | s->smb_dir[0] = '\0'; | |
1071 | } | |
63a01ef8 AL |
1072 | } |
1073 | ||
0752706d MA |
1074 | static int slirp_smb(SlirpState* s, Monitor *mon, const char *exported_dir, |
1075 | struct in_addr vserver_addr) | |
63a01ef8 | 1076 | { |
28432466 JK |
1077 | static int instance; |
1078 | char smb_conf[128]; | |
1079 | char smb_cmdline[128]; | |
63a01ef8 AL |
1080 | FILE *f; |
1081 | ||
28432466 JK |
1082 | snprintf(s->smb_dir, sizeof(s->smb_dir), "/tmp/qemu-smb.%ld-%d", |
1083 | (long)getpid(), instance++); | |
1084 | if (mkdir(s->smb_dir, 0700) < 0) { | |
1085 | config_error(mon, "could not create samba server dir '%s'\n", | |
1086 | s->smb_dir); | |
0752706d | 1087 | return -1; |
63a01ef8 | 1088 | } |
28432466 | 1089 | snprintf(smb_conf, sizeof(smb_conf), "%s/%s", s->smb_dir, "smb.conf"); |
63a01ef8 AL |
1090 | |
1091 | f = fopen(smb_conf, "w"); | |
1092 | if (!f) { | |
28432466 | 1093 | slirp_smb_cleanup(s); |
492efabd JK |
1094 | config_error(mon, "could not create samba server " |
1095 | "configuration file '%s'\n", smb_conf); | |
0752706d | 1096 | return -1; |
63a01ef8 AL |
1097 | } |
1098 | fprintf(f, | |
1099 | "[global]\n" | |
1100 | "private dir=%s\n" | |
1101 | "smb ports=0\n" | |
1102 | "socket address=127.0.0.1\n" | |
1103 | "pid directory=%s\n" | |
1104 | "lock directory=%s\n" | |
1105 | "log file=%s/log.smbd\n" | |
1106 | "smb passwd file=%s/smbpasswd\n" | |
1107 | "security = share\n" | |
1108 | "[qemu]\n" | |
1109 | "path=%s\n" | |
1110 | "read only=no\n" | |
1111 | "guest ok=yes\n", | |
28432466 JK |
1112 | s->smb_dir, |
1113 | s->smb_dir, | |
1114 | s->smb_dir, | |
1115 | s->smb_dir, | |
1116 | s->smb_dir, | |
63a01ef8 AL |
1117 | exported_dir |
1118 | ); | |
1119 | fclose(f); | |
63a01ef8 AL |
1120 | |
1121 | snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s", | |
1122 | SMBD_COMMAND, smb_conf); | |
1123 | ||
bb53fc53 | 1124 | if (slirp_add_exec(s->slirp, 0, smb_cmdline, &vserver_addr, 139) < 0) { |
28432466 | 1125 | slirp_smb_cleanup(s); |
492efabd | 1126 | config_error(mon, "conflicting/invalid smbserver address\n"); |
0752706d | 1127 | return -1; |
c92ef6a2 | 1128 | } |
0752706d | 1129 | return 0; |
63a01ef8 AL |
1130 | } |
1131 | ||
ad196a9d | 1132 | /* automatic user mode samba server configuration (legacy interface) */ |
0752706d | 1133 | int net_slirp_smb(const char *exported_dir) |
b8e8af38 | 1134 | { |
c92ef6a2 JK |
1135 | struct in_addr vserver_addr = { .s_addr = 0 }; |
1136 | ||
ad196a9d | 1137 | if (legacy_smb_export) { |
b8e8af38 | 1138 | fprintf(stderr, "-smb given twice\n"); |
0752706d | 1139 | return -1; |
b8e8af38 | 1140 | } |
ad196a9d | 1141 | legacy_smb_export = exported_dir; |
72cf2d4f | 1142 | if (!QTAILQ_EMPTY(&slirp_stacks)) { |
0752706d MA |
1143 | return slirp_smb(QTAILQ_FIRST(&slirp_stacks), NULL, exported_dir, |
1144 | vserver_addr); | |
b8e8af38 | 1145 | } |
0752706d | 1146 | return 0; |
b8e8af38 JK |
1147 | } |
1148 | ||
63a01ef8 | 1149 | #endif /* !defined(_WIN32) */ |
b8e8af38 | 1150 | |
c92ef6a2 | 1151 | struct GuestFwd { |
8ca9217d | 1152 | CharDriverState *hd; |
c92ef6a2 | 1153 | struct in_addr server; |
8ca9217d | 1154 | int port; |
9f8bd042 | 1155 | Slirp *slirp; |
511d2b14 | 1156 | }; |
8ca9217d | 1157 | |
c92ef6a2 | 1158 | static int guestfwd_can_read(void *opaque) |
8ca9217d | 1159 | { |
c92ef6a2 | 1160 | struct GuestFwd *fwd = opaque; |
9f8bd042 | 1161 | return slirp_socket_can_recv(fwd->slirp, fwd->server, fwd->port); |
8ca9217d AL |
1162 | } |
1163 | ||
c92ef6a2 | 1164 | static void guestfwd_read(void *opaque, const uint8_t *buf, int size) |
8ca9217d | 1165 | { |
c92ef6a2 | 1166 | struct GuestFwd *fwd = opaque; |
9f8bd042 | 1167 | slirp_socket_recv(fwd->slirp, fwd->server, fwd->port, buf, size); |
8ca9217d AL |
1168 | } |
1169 | ||
0752706d MA |
1170 | static int slirp_guestfwd(SlirpState *s, Monitor *mon, const char *config_str, |
1171 | int legacy_format) | |
ad196a9d | 1172 | { |
c92ef6a2 JK |
1173 | struct in_addr server = { .s_addr = 0 }; |
1174 | struct GuestFwd *fwd; | |
1175 | const char *p; | |
1176 | char buf[128]; | |
1177 | char *end; | |
ad196a9d JK |
1178 | int port; |
1179 | ||
c92ef6a2 JK |
1180 | p = config_str; |
1181 | if (legacy_format) { | |
1182 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
1183 | goto fail_syntax; | |
1184 | } | |
1185 | } else { | |
1186 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
1187 | goto fail_syntax; | |
1188 | } | |
1189 | if (strcmp(buf, "tcp") && buf[0] != '\0') { | |
1190 | goto fail_syntax; | |
1191 | } | |
1192 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
1193 | goto fail_syntax; | |
1194 | } | |
1195 | if (buf[0] != '\0' && !inet_aton(buf, &server)) { | |
1196 | goto fail_syntax; | |
1197 | } | |
1198 | if (get_str_sep(buf, sizeof(buf), &p, '-') < 0) { | |
1199 | goto fail_syntax; | |
1200 | } | |
1201 | } | |
1202 | port = strtol(buf, &end, 10); | |
1203 | if (*end != '\0' || port < 1 || port > 65535) { | |
1204 | goto fail_syntax; | |
ad196a9d | 1205 | } |
ad196a9d | 1206 | |
c92ef6a2 JK |
1207 | fwd = qemu_malloc(sizeof(struct GuestFwd)); |
1208 | snprintf(buf, sizeof(buf), "guestfwd.tcp:%d", port); | |
1209 | fwd->hd = qemu_chr_open(buf, p, NULL); | |
1210 | if (!fwd->hd) { | |
1211 | config_error(mon, "could not open guest forwarding device '%s'\n", | |
1212 | buf); | |
1213 | qemu_free(fwd); | |
0752706d | 1214 | return -1; |
ad196a9d | 1215 | } |
ad196a9d | 1216 | |
bb53fc53 | 1217 | if (slirp_add_exec(s->slirp, 3, fwd->hd, &server, port) < 0) { |
c92ef6a2 JK |
1218 | config_error(mon, "conflicting/invalid host:port in guest forwarding " |
1219 | "rule '%s'\n", config_str); | |
1220 | qemu_free(fwd); | |
0752706d | 1221 | return -1; |
c92ef6a2 | 1222 | } |
bb53fc53 JK |
1223 | fwd->server = server; |
1224 | fwd->port = port; | |
1225 | fwd->slirp = s->slirp; | |
1226 | ||
c92ef6a2 JK |
1227 | qemu_chr_add_handlers(fwd->hd, guestfwd_can_read, guestfwd_read, |
1228 | NULL, fwd); | |
0752706d | 1229 | return 0; |
c92ef6a2 JK |
1230 | |
1231 | fail_syntax: | |
1232 | config_error(mon, "invalid guest forwarding rule '%s'\n", config_str); | |
0752706d | 1233 | return -1; |
ad196a9d JK |
1234 | } |
1235 | ||
6dbe553f JK |
1236 | void do_info_usernet(Monitor *mon) |
1237 | { | |
b1c99fcd | 1238 | SlirpState *s; |
9f8bd042 | 1239 | |
72cf2d4f | 1240 | QTAILQ_FOREACH(s, &slirp_stacks, entry) { |
b1c99fcd JK |
1241 | monitor_printf(mon, "VLAN %d (%s):\n", s->vc->vlan->id, s->vc->name); |
1242 | slirp_connection_info(s->slirp, mon); | |
9f8bd042 | 1243 | } |
6dbe553f JK |
1244 | } |
1245 | ||
63a01ef8 AL |
1246 | #endif /* CONFIG_SLIRP */ |
1247 | ||
1248 | #if !defined(_WIN32) | |
1249 | ||
1250 | typedef struct TAPState { | |
1251 | VLANClientState *vc; | |
1252 | int fd; | |
1253 | char down_script[1024]; | |
973cbd37 | 1254 | char down_script_arg[128]; |
5b01e886 | 1255 | uint8_t buf[4096]; |
b664e367 | 1256 | unsigned int read_poll : 1; |
1f7babf6 | 1257 | unsigned int write_poll : 1; |
63a01ef8 AL |
1258 | } TAPState; |
1259 | ||
b946a153 AL |
1260 | static int launch_script(const char *setup_script, const char *ifname, int fd); |
1261 | ||
b664e367 MM |
1262 | static int tap_can_send(void *opaque); |
1263 | static void tap_send(void *opaque); | |
1f7babf6 | 1264 | static void tap_writable(void *opaque); |
b664e367 MM |
1265 | |
1266 | static void tap_update_fd_handler(TAPState *s) | |
1267 | { | |
1268 | qemu_set_fd_handler2(s->fd, | |
1269 | s->read_poll ? tap_can_send : NULL, | |
1270 | s->read_poll ? tap_send : NULL, | |
1f7babf6 | 1271 | s->write_poll ? tap_writable : NULL, |
b664e367 MM |
1272 | s); |
1273 | } | |
1274 | ||
1275 | static void tap_read_poll(TAPState *s, int enable) | |
1276 | { | |
1277 | s->read_poll = !!enable; | |
1278 | tap_update_fd_handler(s); | |
1279 | } | |
1280 | ||
1f7babf6 MM |
1281 | static void tap_write_poll(TAPState *s, int enable) |
1282 | { | |
1283 | s->write_poll = !!enable; | |
1284 | tap_update_fd_handler(s); | |
1285 | } | |
1286 | ||
1287 | static void tap_writable(void *opaque) | |
1288 | { | |
1289 | TAPState *s = opaque; | |
1290 | ||
1291 | tap_write_poll(s, 0); | |
1292 | ||
1293 | qemu_flush_queued_packets(s->vc); | |
1294 | } | |
1295 | ||
e3f5ec2b | 1296 | static ssize_t tap_receive_iov(VLANClientState *vc, const struct iovec *iov, |
b535b7b2 AL |
1297 | int iovcnt) |
1298 | { | |
e3f5ec2b | 1299 | TAPState *s = vc->opaque; |
b535b7b2 AL |
1300 | ssize_t len; |
1301 | ||
1302 | do { | |
1303 | len = writev(s->fd, iov, iovcnt); | |
1f7babf6 MM |
1304 | } while (len == -1 && errno == EINTR); |
1305 | ||
1306 | if (len == -1 && errno == EAGAIN) { | |
1307 | tap_write_poll(s, 1); | |
1308 | return 0; | |
1309 | } | |
b535b7b2 AL |
1310 | |
1311 | return len; | |
1312 | } | |
b535b7b2 | 1313 | |
4f1c942b | 1314 | static ssize_t tap_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
63a01ef8 | 1315 | { |
e3f5ec2b | 1316 | TAPState *s = vc->opaque; |
4f1c942b MM |
1317 | ssize_t len; |
1318 | ||
1319 | do { | |
1320 | len = write(s->fd, buf, size); | |
1321 | } while (len == -1 && (errno == EINTR || errno == EAGAIN)); | |
1322 | ||
1323 | return len; | |
63a01ef8 AL |
1324 | } |
1325 | ||
3471b757 MM |
1326 | static int tap_can_send(void *opaque) |
1327 | { | |
1328 | TAPState *s = opaque; | |
1329 | ||
1330 | return qemu_can_send_packet(s->vc); | |
1331 | } | |
1332 | ||
63a01ef8 | 1333 | #ifdef __sun__ |
5a6d8815 MM |
1334 | static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen) |
1335 | { | |
63a01ef8 AL |
1336 | struct strbuf sbuf; |
1337 | int f = 0; | |
5a6d8815 MM |
1338 | |
1339 | sbuf.maxlen = maxlen; | |
3f4cb3d3 | 1340 | sbuf.buf = (char *)buf; |
5a6d8815 MM |
1341 | |
1342 | return getmsg(tapfd, NULL, &sbuf, &f) >= 0 ? sbuf.len : -1; | |
1343 | } | |
63a01ef8 | 1344 | #else |
5a6d8815 MM |
1345 | static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen) |
1346 | { | |
1347 | return read(tapfd, buf, maxlen); | |
1348 | } | |
63a01ef8 | 1349 | #endif |
5a6d8815 | 1350 | |
783527a9 | 1351 | static void tap_send_completed(VLANClientState *vc, ssize_t len) |
e19eb224 MM |
1352 | { |
1353 | TAPState *s = vc->opaque; | |
b664e367 | 1354 | tap_read_poll(s, 1); |
e19eb224 MM |
1355 | } |
1356 | ||
5a6d8815 MM |
1357 | static void tap_send(void *opaque) |
1358 | { | |
1359 | TAPState *s = opaque; | |
5a6d8815 MM |
1360 | int size; |
1361 | ||
e19eb224 MM |
1362 | do { |
1363 | size = tap_read_packet(s->fd, s->buf, sizeof(s->buf)); | |
1364 | if (size <= 0) { | |
1365 | break; | |
1366 | } | |
1367 | ||
1368 | size = qemu_send_packet_async(s->vc, s->buf, size, tap_send_completed); | |
1369 | if (size == 0) { | |
b664e367 | 1370 | tap_read_poll(s, 0); |
e19eb224 MM |
1371 | } |
1372 | } while (size > 0); | |
63a01ef8 AL |
1373 | } |
1374 | ||
0df0ff6d | 1375 | #ifdef TUNSETSNDBUF |
fc5b81d1 MM |
1376 | /* sndbuf should be set to a value lower than the tx queue |
1377 | * capacity of any destination network interface. | |
1378 | * Ethernet NICs generally have txqueuelen=1000, so 1Mb is | |
1379 | * a good default, given a 1500 byte MTU. | |
1380 | */ | |
1381 | #define TAP_DEFAULT_SNDBUF 1024*1024 | |
1382 | ||
0752706d | 1383 | static int tap_set_sndbuf(TAPState *s, const char *sndbuf_str, Monitor *mon) |
fc5b81d1 MM |
1384 | { |
1385 | int sndbuf = TAP_DEFAULT_SNDBUF; | |
1386 | ||
1387 | if (sndbuf_str) { | |
1388 | sndbuf = atoi(sndbuf_str); | |
1389 | } | |
1390 | ||
1391 | if (!sndbuf) { | |
1392 | sndbuf = INT_MAX; | |
1393 | } | |
1394 | ||
d026fb6d | 1395 | if (ioctl(s->fd, TUNSETSNDBUF, &sndbuf) == -1 && sndbuf_str) { |
0df0ff6d MM |
1396 | config_error(mon, "TUNSETSNDBUF ioctl failed: %s\n", |
1397 | strerror(errno)); | |
0752706d | 1398 | return -1; |
0df0ff6d | 1399 | } |
0752706d | 1400 | return 0; |
fc5b81d1 | 1401 | } |
0df0ff6d | 1402 | #else |
0752706d | 1403 | static int tap_set_sndbuf(TAPState *s, const char *sndbuf_str, Monitor *mon) |
fc5b81d1 MM |
1404 | { |
1405 | if (sndbuf_str) { | |
1406 | config_error(mon, "No '-net tap,sndbuf=<nbytes>' support available\n"); | |
0752706d | 1407 | return -1; |
fc5b81d1 | 1408 | } |
0752706d | 1409 | return 0; |
0df0ff6d | 1410 | } |
fc5b81d1 | 1411 | #endif /* TUNSETSNDBUF */ |
0df0ff6d | 1412 | |
b946a153 AL |
1413 | static void tap_cleanup(VLANClientState *vc) |
1414 | { | |
1415 | TAPState *s = vc->opaque; | |
1416 | ||
b9adce2c MM |
1417 | qemu_purge_queued_packets(vc); |
1418 | ||
b946a153 AL |
1419 | if (s->down_script[0]) |
1420 | launch_script(s->down_script, s->down_script_arg, s->fd); | |
1421 | ||
b664e367 | 1422 | tap_read_poll(s, 0); |
1f7babf6 | 1423 | tap_write_poll(s, 0); |
b946a153 AL |
1424 | close(s->fd); |
1425 | qemu_free(s); | |
1426 | } | |
1427 | ||
63a01ef8 AL |
1428 | /* fd support */ |
1429 | ||
7a9f6e4a AL |
1430 | static TAPState *net_tap_fd_init(VLANState *vlan, |
1431 | const char *model, | |
1432 | const char *name, | |
1433 | int fd) | |
63a01ef8 AL |
1434 | { |
1435 | TAPState *s; | |
1436 | ||
1437 | s = qemu_mallocz(sizeof(TAPState)); | |
63a01ef8 | 1438 | s->fd = fd; |
463af534 MM |
1439 | s->vc = qemu_new_vlan_client(vlan, model, name, NULL, tap_receive, |
1440 | tap_receive_iov, tap_cleanup, s); | |
b664e367 | 1441 | tap_read_poll(s, 1); |
7cb7434b | 1442 | snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd); |
63a01ef8 AL |
1443 | return s; |
1444 | } | |
1445 | ||
71e72a19 | 1446 | #if defined (CONFIG_BSD) || defined (__FreeBSD_kernel__) |
63a01ef8 AL |
1447 | static int tap_open(char *ifname, int ifname_size) |
1448 | { | |
1449 | int fd; | |
1450 | char *dev; | |
1451 | struct stat s; | |
1452 | ||
1453 | TFR(fd = open("/dev/tap", O_RDWR)); | |
1454 | if (fd < 0) { | |
1455 | fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n"); | |
1456 | return -1; | |
1457 | } | |
1458 | ||
1459 | fstat(fd, &s); | |
1460 | dev = devname(s.st_rdev, S_IFCHR); | |
1461 | pstrcpy(ifname, ifname_size, dev); | |
1462 | ||
1463 | fcntl(fd, F_SETFL, O_NONBLOCK); | |
1464 | return fd; | |
1465 | } | |
1466 | #elif defined(__sun__) | |
1467 | #define TUNNEWPPA (('T'<<16) | 0x0001) | |
1468 | /* | |
1469 | * Allocate TAP device, returns opened fd. | |
1470 | * Stores dev name in the first arg(must be large enough). | |
1471 | */ | |
3f4cb3d3 | 1472 | static int tap_alloc(char *dev, size_t dev_size) |
63a01ef8 AL |
1473 | { |
1474 | int tap_fd, if_fd, ppa = -1; | |
1475 | static int ip_fd = 0; | |
1476 | char *ptr; | |
1477 | ||
1478 | static int arp_fd = 0; | |
1479 | int ip_muxid, arp_muxid; | |
1480 | struct strioctl strioc_if, strioc_ppa; | |
1481 | int link_type = I_PLINK;; | |
1482 | struct lifreq ifr; | |
1483 | char actual_name[32] = ""; | |
1484 | ||
1485 | memset(&ifr, 0x0, sizeof(ifr)); | |
1486 | ||
1487 | if( *dev ){ | |
1488 | ptr = dev; | |
47398b9c | 1489 | while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++; |
63a01ef8 AL |
1490 | ppa = atoi(ptr); |
1491 | } | |
1492 | ||
1493 | /* Check if IP device was opened */ | |
1494 | if( ip_fd ) | |
1495 | close(ip_fd); | |
1496 | ||
1497 | TFR(ip_fd = open("/dev/udp", O_RDWR, 0)); | |
1498 | if (ip_fd < 0) { | |
1499 | syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)"); | |
1500 | return -1; | |
1501 | } | |
1502 | ||
1503 | TFR(tap_fd = open("/dev/tap", O_RDWR, 0)); | |
1504 | if (tap_fd < 0) { | |
1505 | syslog(LOG_ERR, "Can't open /dev/tap"); | |
1506 | return -1; | |
1507 | } | |
1508 | ||
1509 | /* Assign a new PPA and get its unit number. */ | |
1510 | strioc_ppa.ic_cmd = TUNNEWPPA; | |
1511 | strioc_ppa.ic_timout = 0; | |
1512 | strioc_ppa.ic_len = sizeof(ppa); | |
1513 | strioc_ppa.ic_dp = (char *)&ppa; | |
1514 | if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0) | |
1515 | syslog (LOG_ERR, "Can't assign new interface"); | |
1516 | ||
1517 | TFR(if_fd = open("/dev/tap", O_RDWR, 0)); | |
1518 | if (if_fd < 0) { | |
1519 | syslog(LOG_ERR, "Can't open /dev/tap (2)"); | |
1520 | return -1; | |
1521 | } | |
1522 | if(ioctl(if_fd, I_PUSH, "ip") < 0){ | |
1523 | syslog(LOG_ERR, "Can't push IP module"); | |
1524 | return -1; | |
1525 | } | |
1526 | ||
1527 | if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0) | |
1528 | syslog(LOG_ERR, "Can't get flags\n"); | |
1529 | ||
1530 | snprintf (actual_name, 32, "tap%d", ppa); | |
1531 | pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name); | |
1532 | ||
1533 | ifr.lifr_ppa = ppa; | |
1534 | /* Assign ppa according to the unit number returned by tun device */ | |
1535 | ||
1536 | if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0) | |
1537 | syslog (LOG_ERR, "Can't set PPA %d", ppa); | |
1538 | if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0) | |
1539 | syslog (LOG_ERR, "Can't get flags\n"); | |
1540 | /* Push arp module to if_fd */ | |
1541 | if (ioctl (if_fd, I_PUSH, "arp") < 0) | |
1542 | syslog (LOG_ERR, "Can't push ARP module (2)"); | |
1543 | ||
1544 | /* Push arp module to ip_fd */ | |
1545 | if (ioctl (ip_fd, I_POP, NULL) < 0) | |
1546 | syslog (LOG_ERR, "I_POP failed\n"); | |
1547 | if (ioctl (ip_fd, I_PUSH, "arp") < 0) | |
1548 | syslog (LOG_ERR, "Can't push ARP module (3)\n"); | |
1549 | /* Open arp_fd */ | |
1550 | TFR(arp_fd = open ("/dev/tap", O_RDWR, 0)); | |
1551 | if (arp_fd < 0) | |
1552 | syslog (LOG_ERR, "Can't open %s\n", "/dev/tap"); | |
1553 | ||
1554 | /* Set ifname to arp */ | |
1555 | strioc_if.ic_cmd = SIOCSLIFNAME; | |
1556 | strioc_if.ic_timout = 0; | |
1557 | strioc_if.ic_len = sizeof(ifr); | |
1558 | strioc_if.ic_dp = (char *)𝔦 | |
1559 | if (ioctl(arp_fd, I_STR, &strioc_if) < 0){ | |
1560 | syslog (LOG_ERR, "Can't set ifname to arp\n"); | |
1561 | } | |
1562 | ||
1563 | if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){ | |
1564 | syslog(LOG_ERR, "Can't link TAP device to IP"); | |
1565 | return -1; | |
1566 | } | |
1567 | ||
1568 | if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0) | |
1569 | syslog (LOG_ERR, "Can't link TAP device to ARP"); | |
1570 | ||
1571 | close (if_fd); | |
1572 | ||
1573 | memset(&ifr, 0x0, sizeof(ifr)); | |
1574 | pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name); | |
1575 | ifr.lifr_ip_muxid = ip_muxid; | |
1576 | ifr.lifr_arp_muxid = arp_muxid; | |
1577 | ||
1578 | if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0) | |
1579 | { | |
1580 | ioctl (ip_fd, I_PUNLINK , arp_muxid); | |
1581 | ioctl (ip_fd, I_PUNLINK, ip_muxid); | |
1582 | syslog (LOG_ERR, "Can't set multiplexor id"); | |
1583 | } | |
1584 | ||
1585 | snprintf(dev, dev_size, "tap%d", ppa); | |
1586 | return tap_fd; | |
1587 | } | |
1588 | ||
1589 | static int tap_open(char *ifname, int ifname_size) | |
1590 | { | |
1591 | char dev[10]=""; | |
1592 | int fd; | |
1593 | if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){ | |
1594 | fprintf(stderr, "Cannot allocate TAP device\n"); | |
1595 | return -1; | |
1596 | } | |
1597 | pstrcpy(ifname, ifname_size, dev); | |
1598 | fcntl(fd, F_SETFL, O_NONBLOCK); | |
1599 | return fd; | |
1600 | } | |
b29fe3ed | 1601 | #elif defined (_AIX) |
1602 | static int tap_open(char *ifname, int ifname_size) | |
1603 | { | |
1604 | fprintf (stderr, "no tap on AIX\n"); | |
1605 | return -1; | |
1606 | } | |
63a01ef8 AL |
1607 | #else |
1608 | static int tap_open(char *ifname, int ifname_size) | |
1609 | { | |
1610 | struct ifreq ifr; | |
1611 | int fd, ret; | |
1612 | ||
1613 | TFR(fd = open("/dev/net/tun", O_RDWR)); | |
1614 | if (fd < 0) { | |
1615 | fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n"); | |
1616 | return -1; | |
1617 | } | |
1618 | memset(&ifr, 0, sizeof(ifr)); | |
1619 | ifr.ifr_flags = IFF_TAP | IFF_NO_PI; | |
1620 | if (ifname[0] != '\0') | |
1621 | pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname); | |
1622 | else | |
1623 | pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d"); | |
1624 | ret = ioctl(fd, TUNSETIFF, (void *) &ifr); | |
1625 | if (ret != 0) { | |
1626 | fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n"); | |
1627 | close(fd); | |
1628 | return -1; | |
1629 | } | |
1630 | pstrcpy(ifname, ifname_size, ifr.ifr_name); | |
1631 | fcntl(fd, F_SETFL, O_NONBLOCK); | |
1632 | return fd; | |
1633 | } | |
1634 | #endif | |
1635 | ||
1636 | static int launch_script(const char *setup_script, const char *ifname, int fd) | |
1637 | { | |
7c3370d4 | 1638 | sigset_t oldmask, mask; |
63a01ef8 AL |
1639 | int pid, status; |
1640 | char *args[3]; | |
1641 | char **parg; | |
1642 | ||
7c3370d4 JK |
1643 | sigemptyset(&mask); |
1644 | sigaddset(&mask, SIGCHLD); | |
1645 | sigprocmask(SIG_BLOCK, &mask, &oldmask); | |
1646 | ||
1647 | /* try to launch network script */ | |
1648 | pid = fork(); | |
1649 | if (pid == 0) { | |
1650 | int open_max = sysconf(_SC_OPEN_MAX), i; | |
1651 | ||
1652 | for (i = 0; i < open_max; i++) { | |
1653 | if (i != STDIN_FILENO && | |
1654 | i != STDOUT_FILENO && | |
1655 | i != STDERR_FILENO && | |
1656 | i != fd) { | |
1657 | close(i); | |
63a01ef8 AL |
1658 | } |
1659 | } | |
7c3370d4 JK |
1660 | parg = args; |
1661 | *parg++ = (char *)setup_script; | |
1662 | *parg++ = (char *)ifname; | |
1663 | *parg++ = NULL; | |
1664 | execv(setup_script, args); | |
1665 | _exit(1); | |
1666 | } else if (pid > 0) { | |
1667 | while (waitpid(pid, &status, 0) != pid) { | |
1668 | /* loop */ | |
1669 | } | |
1670 | sigprocmask(SIG_SETMASK, &oldmask, NULL); | |
1671 | ||
1672 | if (WIFEXITED(status) && WEXITSTATUS(status) == 0) { | |
1673 | return 0; | |
1674 | } | |
1675 | } | |
1676 | fprintf(stderr, "%s: could not launch network script\n", setup_script); | |
1677 | return -1; | |
63a01ef8 AL |
1678 | } |
1679 | ||
4a77b25e MM |
1680 | static TAPState *net_tap_init(VLANState *vlan, const char *model, |
1681 | const char *name, const char *ifname1, | |
1682 | const char *setup_script, const char *down_script) | |
63a01ef8 AL |
1683 | { |
1684 | TAPState *s; | |
1685 | int fd; | |
1686 | char ifname[128]; | |
1687 | ||
1688 | if (ifname1 != NULL) | |
1689 | pstrcpy(ifname, sizeof(ifname), ifname1); | |
1690 | else | |
1691 | ifname[0] = '\0'; | |
1692 | TFR(fd = tap_open(ifname, sizeof(ifname))); | |
1693 | if (fd < 0) | |
4a77b25e | 1694 | return NULL; |
63a01ef8 AL |
1695 | |
1696 | if (!setup_script || !strcmp(setup_script, "no")) | |
1697 | setup_script = ""; | |
4a77b25e MM |
1698 | if (setup_script[0] != '\0' && |
1699 | launch_script(setup_script, ifname, fd)) { | |
1700 | return NULL; | |
63a01ef8 | 1701 | } |
7a9f6e4a | 1702 | s = net_tap_fd_init(vlan, model, name, fd); |
63a01ef8 | 1703 | snprintf(s->vc->info_str, sizeof(s->vc->info_str), |
7cb7434b AL |
1704 | "ifname=%s,script=%s,downscript=%s", |
1705 | ifname, setup_script, down_script); | |
973cbd37 | 1706 | if (down_script && strcmp(down_script, "no")) { |
63a01ef8 | 1707 | snprintf(s->down_script, sizeof(s->down_script), "%s", down_script); |
973cbd37 AL |
1708 | snprintf(s->down_script_arg, sizeof(s->down_script_arg), "%s", ifname); |
1709 | } | |
4a77b25e | 1710 | return s; |
63a01ef8 AL |
1711 | } |
1712 | ||
1713 | #endif /* !_WIN32 */ | |
1714 | ||
1715 | #if defined(CONFIG_VDE) | |
1716 | typedef struct VDEState { | |
1717 | VLANClientState *vc; | |
1718 | VDECONN *vde; | |
1719 | } VDEState; | |
1720 | ||
1721 | static void vde_to_qemu(void *opaque) | |
1722 | { | |
1723 | VDEState *s = opaque; | |
1724 | uint8_t buf[4096]; | |
1725 | int size; | |
1726 | ||
cc63bb0f | 1727 | size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0); |
63a01ef8 AL |
1728 | if (size > 0) { |
1729 | qemu_send_packet(s->vc, buf, size); | |
1730 | } | |
1731 | } | |
1732 | ||
4f1c942b | 1733 | static ssize_t vde_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
63a01ef8 | 1734 | { |
e3f5ec2b | 1735 | VDEState *s = vc->opaque; |
068daedd | 1736 | ssize_t ret; |
4f1c942b MM |
1737 | |
1738 | do { | |
1739 | ret = vde_send(s->vde, (const char *)buf, size, 0); | |
1740 | } while (ret < 0 && errno == EINTR); | |
1741 | ||
1742 | return ret; | |
63a01ef8 AL |
1743 | } |
1744 | ||
b946a153 AL |
1745 | static void vde_cleanup(VLANClientState *vc) |
1746 | { | |
1747 | VDEState *s = vc->opaque; | |
1748 | qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL); | |
1749 | vde_close(s->vde); | |
1750 | qemu_free(s); | |
1751 | } | |
1752 | ||
7a9f6e4a AL |
1753 | static int net_vde_init(VLANState *vlan, const char *model, |
1754 | const char *name, const char *sock, | |
bf38c1a0 | 1755 | int port, const char *group, int mode) |
63a01ef8 AL |
1756 | { |
1757 | VDEState *s; | |
1758 | char *init_group = strlen(group) ? (char *)group : NULL; | |
1759 | char *init_sock = strlen(sock) ? (char *)sock : NULL; | |
1760 | ||
1761 | struct vde_open_args args = { | |
1762 | .port = port, | |
1763 | .group = init_group, | |
1764 | .mode = mode, | |
1765 | }; | |
1766 | ||
1767 | s = qemu_mallocz(sizeof(VDEState)); | |
cc63bb0f | 1768 | s->vde = vde_open(init_sock, (char *)"QEMU", &args); |
63a01ef8 AL |
1769 | if (!s->vde){ |
1770 | free(s); | |
1771 | return -1; | |
1772 | } | |
e3f5ec2b | 1773 | s->vc = qemu_new_vlan_client(vlan, model, name, NULL, vde_receive, |
b946a153 | 1774 | NULL, vde_cleanup, s); |
63a01ef8 | 1775 | qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s); |
7cb7434b | 1776 | snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d", |
63a01ef8 AL |
1777 | sock, vde_datafd(s->vde)); |
1778 | return 0; | |
1779 | } | |
1780 | #endif | |
1781 | ||
1782 | /* network connection */ | |
1783 | typedef struct NetSocketState { | |
1784 | VLANClientState *vc; | |
1785 | int fd; | |
1786 | int state; /* 0 = getting length, 1 = getting data */ | |
abcd2baa AL |
1787 | unsigned int index; |
1788 | unsigned int packet_len; | |
63a01ef8 AL |
1789 | uint8_t buf[4096]; |
1790 | struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */ | |
1791 | } NetSocketState; | |
1792 | ||
1793 | typedef struct NetSocketListenState { | |
1794 | VLANState *vlan; | |
bf38c1a0 | 1795 | char *model; |
7a9f6e4a | 1796 | char *name; |
63a01ef8 AL |
1797 | int fd; |
1798 | } NetSocketListenState; | |
1799 | ||
1800 | /* XXX: we consider we can send the whole packet without blocking */ | |
4f1c942b | 1801 | static ssize_t net_socket_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
63a01ef8 | 1802 | { |
e3f5ec2b | 1803 | NetSocketState *s = vc->opaque; |
63a01ef8 AL |
1804 | uint32_t len; |
1805 | len = htonl(size); | |
1806 | ||
1807 | send_all(s->fd, (const uint8_t *)&len, sizeof(len)); | |
4f1c942b | 1808 | return send_all(s->fd, buf, size); |
63a01ef8 AL |
1809 | } |
1810 | ||
4f1c942b | 1811 | static ssize_t net_socket_receive_dgram(VLANClientState *vc, const uint8_t *buf, size_t size) |
63a01ef8 | 1812 | { |
e3f5ec2b | 1813 | NetSocketState *s = vc->opaque; |
4f1c942b | 1814 | |
70503264 | 1815 | return sendto(s->fd, (const void *)buf, size, 0, |
4f1c942b | 1816 | (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst)); |
63a01ef8 AL |
1817 | } |
1818 | ||
1819 | static void net_socket_send(void *opaque) | |
1820 | { | |
1821 | NetSocketState *s = opaque; | |
abcd2baa AL |
1822 | int size, err; |
1823 | unsigned l; | |
63a01ef8 AL |
1824 | uint8_t buf1[4096]; |
1825 | const uint8_t *buf; | |
1826 | ||
c5b76b38 | 1827 | size = recv(s->fd, (void *)buf1, sizeof(buf1), 0); |
63a01ef8 AL |
1828 | if (size < 0) { |
1829 | err = socket_error(); | |
1830 | if (err != EWOULDBLOCK) | |
1831 | goto eoc; | |
1832 | } else if (size == 0) { | |
1833 | /* end of connection */ | |
1834 | eoc: | |
1835 | qemu_set_fd_handler(s->fd, NULL, NULL, NULL); | |
1836 | closesocket(s->fd); | |
1837 | return; | |
1838 | } | |
1839 | buf = buf1; | |
1840 | while (size > 0) { | |
1841 | /* reassemble a packet from the network */ | |
1842 | switch(s->state) { | |
1843 | case 0: | |
1844 | l = 4 - s->index; | |
1845 | if (l > size) | |
1846 | l = size; | |
1847 | memcpy(s->buf + s->index, buf, l); | |
1848 | buf += l; | |
1849 | size -= l; | |
1850 | s->index += l; | |
1851 | if (s->index == 4) { | |
1852 | /* got length */ | |
1853 | s->packet_len = ntohl(*(uint32_t *)s->buf); | |
1854 | s->index = 0; | |
1855 | s->state = 1; | |
1856 | } | |
1857 | break; | |
1858 | case 1: | |
1859 | l = s->packet_len - s->index; | |
1860 | if (l > size) | |
1861 | l = size; | |
abcd2baa AL |
1862 | if (s->index + l <= sizeof(s->buf)) { |
1863 | memcpy(s->buf + s->index, buf, l); | |
1864 | } else { | |
1865 | fprintf(stderr, "serious error: oversized packet received," | |
1866 | "connection terminated.\n"); | |
1867 | s->state = 0; | |
1868 | goto eoc; | |
1869 | } | |
1870 | ||
63a01ef8 AL |
1871 | s->index += l; |
1872 | buf += l; | |
1873 | size -= l; | |
1874 | if (s->index >= s->packet_len) { | |
1875 | qemu_send_packet(s->vc, s->buf, s->packet_len); | |
1876 | s->index = 0; | |
1877 | s->state = 0; | |
1878 | } | |
1879 | break; | |
1880 | } | |
1881 | } | |
1882 | } | |
1883 | ||
1884 | static void net_socket_send_dgram(void *opaque) | |
1885 | { | |
1886 | NetSocketState *s = opaque; | |
1887 | int size; | |
1888 | ||
c5b76b38 | 1889 | size = recv(s->fd, (void *)s->buf, sizeof(s->buf), 0); |
63a01ef8 AL |
1890 | if (size < 0) |
1891 | return; | |
1892 | if (size == 0) { | |
1893 | /* end of connection */ | |
1894 | qemu_set_fd_handler(s->fd, NULL, NULL, NULL); | |
1895 | return; | |
1896 | } | |
1897 | qemu_send_packet(s->vc, s->buf, size); | |
1898 | } | |
1899 | ||
1900 | static int net_socket_mcast_create(struct sockaddr_in *mcastaddr) | |
1901 | { | |
1902 | struct ip_mreq imr; | |
1903 | int fd; | |
1904 | int val, ret; | |
1905 | if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) { | |
1906 | fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n", | |
1907 | inet_ntoa(mcastaddr->sin_addr), | |
1908 | (int)ntohl(mcastaddr->sin_addr.s_addr)); | |
1909 | return -1; | |
1910 | ||
1911 | } | |
1912 | fd = socket(PF_INET, SOCK_DGRAM, 0); | |
1913 | if (fd < 0) { | |
1914 | perror("socket(PF_INET, SOCK_DGRAM)"); | |
1915 | return -1; | |
1916 | } | |
1917 | ||
1918 | val = 1; | |
1919 | ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, | |
1920 | (const char *)&val, sizeof(val)); | |
1921 | if (ret < 0) { | |
1922 | perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)"); | |
1923 | goto fail; | |
1924 | } | |
1925 | ||
1926 | ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr)); | |
1927 | if (ret < 0) { | |
1928 | perror("bind"); | |
1929 | goto fail; | |
1930 | } | |
1931 | ||
1932 | /* Add host to multicast group */ | |
1933 | imr.imr_multiaddr = mcastaddr->sin_addr; | |
1934 | imr.imr_interface.s_addr = htonl(INADDR_ANY); | |
1935 | ||
1936 | ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, | |
1937 | (const char *)&imr, sizeof(struct ip_mreq)); | |
1938 | if (ret < 0) { | |
1939 | perror("setsockopt(IP_ADD_MEMBERSHIP)"); | |
1940 | goto fail; | |
1941 | } | |
1942 | ||
1943 | /* Force mcast msgs to loopback (eg. several QEMUs in same host */ | |
1944 | val = 1; | |
1945 | ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP, | |
1946 | (const char *)&val, sizeof(val)); | |
1947 | if (ret < 0) { | |
1948 | perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)"); | |
1949 | goto fail; | |
1950 | } | |
1951 | ||
1952 | socket_set_nonblock(fd); | |
1953 | return fd; | |
1954 | fail: | |
1955 | if (fd >= 0) | |
1956 | closesocket(fd); | |
1957 | return -1; | |
1958 | } | |
1959 | ||
b946a153 AL |
1960 | static void net_socket_cleanup(VLANClientState *vc) |
1961 | { | |
1962 | NetSocketState *s = vc->opaque; | |
1963 | qemu_set_fd_handler(s->fd, NULL, NULL, NULL); | |
1964 | close(s->fd); | |
1965 | qemu_free(s); | |
1966 | } | |
1967 | ||
7a9f6e4a AL |
1968 | static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan, |
1969 | const char *model, | |
1970 | const char *name, | |
bf38c1a0 | 1971 | int fd, int is_connected) |
63a01ef8 AL |
1972 | { |
1973 | struct sockaddr_in saddr; | |
1974 | int newfd; | |
1975 | socklen_t saddr_len; | |
1976 | NetSocketState *s; | |
1977 | ||
1978 | /* fd passed: multicast: "learn" dgram_dst address from bound address and save it | |
1979 | * Because this may be "shared" socket from a "master" process, datagrams would be recv() | |
1980 | * by ONLY ONE process: we must "clone" this dgram socket --jjo | |
1981 | */ | |
1982 | ||
1983 | if (is_connected) { | |
1984 | if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) { | |
1985 | /* must be bound */ | |
1986 | if (saddr.sin_addr.s_addr==0) { | |
1987 | fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n", | |
1988 | fd); | |
1989 | return NULL; | |
1990 | } | |
1991 | /* clone dgram socket */ | |
1992 | newfd = net_socket_mcast_create(&saddr); | |
1993 | if (newfd < 0) { | |
1994 | /* error already reported by net_socket_mcast_create() */ | |
1995 | close(fd); | |
1996 | return NULL; | |
1997 | } | |
1998 | /* clone newfd to fd, close newfd */ | |
1999 | dup2(newfd, fd); | |
2000 | close(newfd); | |
2001 | ||
2002 | } else { | |
2003 | fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n", | |
2004 | fd, strerror(errno)); | |
2005 | return NULL; | |
2006 | } | |
2007 | } | |
2008 | ||
2009 | s = qemu_mallocz(sizeof(NetSocketState)); | |
63a01ef8 AL |
2010 | s->fd = fd; |
2011 | ||
463af534 | 2012 | s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive_dgram, |
b946a153 | 2013 | NULL, net_socket_cleanup, s); |
63a01ef8 AL |
2014 | qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s); |
2015 | ||
2016 | /* mcast: save bound address as dst */ | |
2017 | if (is_connected) s->dgram_dst=saddr; | |
2018 | ||
2019 | snprintf(s->vc->info_str, sizeof(s->vc->info_str), | |
2020 | "socket: fd=%d (%s mcast=%s:%d)", | |
2021 | fd, is_connected? "cloned" : "", | |
2022 | inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); | |
2023 | return s; | |
2024 | } | |
2025 | ||
2026 | static void net_socket_connect(void *opaque) | |
2027 | { | |
2028 | NetSocketState *s = opaque; | |
2029 | qemu_set_fd_handler(s->fd, net_socket_send, NULL, s); | |
2030 | } | |
2031 | ||
7a9f6e4a AL |
2032 | static NetSocketState *net_socket_fd_init_stream(VLANState *vlan, |
2033 | const char *model, | |
2034 | const char *name, | |
bf38c1a0 | 2035 | int fd, int is_connected) |
63a01ef8 AL |
2036 | { |
2037 | NetSocketState *s; | |
2038 | s = qemu_mallocz(sizeof(NetSocketState)); | |
63a01ef8 | 2039 | s->fd = fd; |
463af534 | 2040 | s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive, |
b946a153 | 2041 | NULL, net_socket_cleanup, s); |
63a01ef8 AL |
2042 | snprintf(s->vc->info_str, sizeof(s->vc->info_str), |
2043 | "socket: fd=%d", fd); | |
2044 | if (is_connected) { | |
2045 | net_socket_connect(s); | |
2046 | } else { | |
2047 | qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s); | |
2048 | } | |
2049 | return s; | |
2050 | } | |
2051 | ||
7a9f6e4a AL |
2052 | static NetSocketState *net_socket_fd_init(VLANState *vlan, |
2053 | const char *model, const char *name, | |
bf38c1a0 | 2054 | int fd, int is_connected) |
63a01ef8 | 2055 | { |
acedcfbf | 2056 | int so_type = -1, optlen=sizeof(so_type); |
63a01ef8 AL |
2057 | |
2058 | if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type, | |
2059 | (socklen_t *)&optlen)< 0) { | |
2060 | fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd); | |
2061 | return NULL; | |
2062 | } | |
2063 | switch(so_type) { | |
2064 | case SOCK_DGRAM: | |
7a9f6e4a | 2065 | return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected); |
63a01ef8 | 2066 | case SOCK_STREAM: |
7a9f6e4a | 2067 | return net_socket_fd_init_stream(vlan, model, name, fd, is_connected); |
63a01ef8 AL |
2068 | default: |
2069 | /* who knows ... this could be a eg. a pty, do warn and continue as stream */ | |
2070 | fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd); | |
7a9f6e4a | 2071 | return net_socket_fd_init_stream(vlan, model, name, fd, is_connected); |
63a01ef8 AL |
2072 | } |
2073 | return NULL; | |
2074 | } | |
2075 | ||
2076 | static void net_socket_accept(void *opaque) | |
2077 | { | |
2078 | NetSocketListenState *s = opaque; | |
2079 | NetSocketState *s1; | |
2080 | struct sockaddr_in saddr; | |
2081 | socklen_t len; | |
2082 | int fd; | |
2083 | ||
2084 | for(;;) { | |
2085 | len = sizeof(saddr); | |
2086 | fd = accept(s->fd, (struct sockaddr *)&saddr, &len); | |
2087 | if (fd < 0 && errno != EINTR) { | |
2088 | return; | |
2089 | } else if (fd >= 0) { | |
2090 | break; | |
2091 | } | |
2092 | } | |
7a9f6e4a | 2093 | s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1); |
63a01ef8 AL |
2094 | if (!s1) { |
2095 | closesocket(fd); | |
2096 | } else { | |
2097 | snprintf(s1->vc->info_str, sizeof(s1->vc->info_str), | |
2098 | "socket: connection from %s:%d", | |
2099 | inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); | |
2100 | } | |
2101 | } | |
2102 | ||
7a9f6e4a AL |
2103 | static int net_socket_listen_init(VLANState *vlan, |
2104 | const char *model, | |
2105 | const char *name, | |
bf38c1a0 | 2106 | const char *host_str) |
63a01ef8 AL |
2107 | { |
2108 | NetSocketListenState *s; | |
2109 | int fd, val, ret; | |
2110 | struct sockaddr_in saddr; | |
2111 | ||
2112 | if (parse_host_port(&saddr, host_str) < 0) | |
2113 | return -1; | |
2114 | ||
2115 | s = qemu_mallocz(sizeof(NetSocketListenState)); | |
63a01ef8 AL |
2116 | |
2117 | fd = socket(PF_INET, SOCK_STREAM, 0); | |
2118 | if (fd < 0) { | |
2119 | perror("socket"); | |
2120 | return -1; | |
2121 | } | |
2122 | socket_set_nonblock(fd); | |
2123 | ||
2124 | /* allow fast reuse */ | |
2125 | val = 1; | |
2126 | setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val)); | |
2127 | ||
2128 | ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)); | |
2129 | if (ret < 0) { | |
2130 | perror("bind"); | |
2131 | return -1; | |
2132 | } | |
2133 | ret = listen(fd, 0); | |
2134 | if (ret < 0) { | |
2135 | perror("listen"); | |
2136 | return -1; | |
2137 | } | |
2138 | s->vlan = vlan; | |
02374aa0 MM |
2139 | s->model = qemu_strdup(model); |
2140 | s->name = name ? qemu_strdup(name) : NULL; | |
63a01ef8 AL |
2141 | s->fd = fd; |
2142 | qemu_set_fd_handler(fd, net_socket_accept, NULL, s); | |
2143 | return 0; | |
2144 | } | |
2145 | ||
7a9f6e4a AL |
2146 | static int net_socket_connect_init(VLANState *vlan, |
2147 | const char *model, | |
2148 | const char *name, | |
bf38c1a0 | 2149 | const char *host_str) |
63a01ef8 AL |
2150 | { |
2151 | NetSocketState *s; | |
2152 | int fd, connected, ret, err; | |
2153 | struct sockaddr_in saddr; | |
2154 | ||
2155 | if (parse_host_port(&saddr, host_str) < 0) | |
2156 | return -1; | |
2157 | ||
2158 | fd = socket(PF_INET, SOCK_STREAM, 0); | |
2159 | if (fd < 0) { | |
2160 | perror("socket"); | |
2161 | return -1; | |
2162 | } | |
2163 | socket_set_nonblock(fd); | |
2164 | ||
2165 | connected = 0; | |
2166 | for(;;) { | |
2167 | ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr)); | |
2168 | if (ret < 0) { | |
2169 | err = socket_error(); | |
2170 | if (err == EINTR || err == EWOULDBLOCK) { | |
2171 | } else if (err == EINPROGRESS) { | |
2172 | break; | |
2173 | #ifdef _WIN32 | |
2174 | } else if (err == WSAEALREADY) { | |
2175 | break; | |
2176 | #endif | |
2177 | } else { | |
2178 | perror("connect"); | |
2179 | closesocket(fd); | |
2180 | return -1; | |
2181 | } | |
2182 | } else { | |
2183 | connected = 1; | |
2184 | break; | |
2185 | } | |
2186 | } | |
7a9f6e4a | 2187 | s = net_socket_fd_init(vlan, model, name, fd, connected); |
63a01ef8 AL |
2188 | if (!s) |
2189 | return -1; | |
2190 | snprintf(s->vc->info_str, sizeof(s->vc->info_str), | |
2191 | "socket: connect to %s:%d", | |
2192 | inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); | |
2193 | return 0; | |
2194 | } | |
2195 | ||
7a9f6e4a AL |
2196 | static int net_socket_mcast_init(VLANState *vlan, |
2197 | const char *model, | |
2198 | const char *name, | |
bf38c1a0 | 2199 | const char *host_str) |
63a01ef8 AL |
2200 | { |
2201 | NetSocketState *s; | |
2202 | int fd; | |
2203 | struct sockaddr_in saddr; | |
2204 | ||
2205 | if (parse_host_port(&saddr, host_str) < 0) | |
2206 | return -1; | |
2207 | ||
2208 | ||
2209 | fd = net_socket_mcast_create(&saddr); | |
2210 | if (fd < 0) | |
2211 | return -1; | |
2212 | ||
7a9f6e4a | 2213 | s = net_socket_fd_init(vlan, model, name, fd, 0); |
63a01ef8 AL |
2214 | if (!s) |
2215 | return -1; | |
2216 | ||
2217 | s->dgram_dst = saddr; | |
2218 | ||
2219 | snprintf(s->vc->info_str, sizeof(s->vc->info_str), | |
2220 | "socket: mcast=%s:%d", | |
2221 | inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); | |
2222 | return 0; | |
2223 | ||
2224 | } | |
2225 | ||
bb9ea79e AL |
2226 | typedef struct DumpState { |
2227 | VLANClientState *pcap_vc; | |
2228 | int fd; | |
2229 | int pcap_caplen; | |
2230 | } DumpState; | |
2231 | ||
2232 | #define PCAP_MAGIC 0xa1b2c3d4 | |
2233 | ||
2234 | struct pcap_file_hdr { | |
2235 | uint32_t magic; | |
2236 | uint16_t version_major; | |
2237 | uint16_t version_minor; | |
2238 | int32_t thiszone; | |
2239 | uint32_t sigfigs; | |
2240 | uint32_t snaplen; | |
2241 | uint32_t linktype; | |
2242 | }; | |
2243 | ||
2244 | struct pcap_sf_pkthdr { | |
2245 | struct { | |
2246 | int32_t tv_sec; | |
2247 | int32_t tv_usec; | |
2248 | } ts; | |
2249 | uint32_t caplen; | |
2250 | uint32_t len; | |
2251 | }; | |
2252 | ||
4f1c942b | 2253 | static ssize_t dump_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
bb9ea79e | 2254 | { |
e3f5ec2b | 2255 | DumpState *s = vc->opaque; |
bb9ea79e AL |
2256 | struct pcap_sf_pkthdr hdr; |
2257 | int64_t ts; | |
2258 | int caplen; | |
2259 | ||
2260 | /* Early return in case of previous error. */ | |
2261 | if (s->fd < 0) { | |
4f1c942b | 2262 | return size; |
bb9ea79e AL |
2263 | } |
2264 | ||
6ee093c9 | 2265 | ts = muldiv64(qemu_get_clock(vm_clock), 1000000, get_ticks_per_sec()); |
bb9ea79e AL |
2266 | caplen = size > s->pcap_caplen ? s->pcap_caplen : size; |
2267 | ||
37cb6fc3 | 2268 | hdr.ts.tv_sec = ts / 1000000; |
bb9ea79e AL |
2269 | hdr.ts.tv_usec = ts % 1000000; |
2270 | hdr.caplen = caplen; | |
2271 | hdr.len = size; | |
2272 | if (write(s->fd, &hdr, sizeof(hdr)) != sizeof(hdr) || | |
2273 | write(s->fd, buf, caplen) != caplen) { | |
2274 | qemu_log("-net dump write error - stop dump\n"); | |
2275 | close(s->fd); | |
2276 | s->fd = -1; | |
2277 | } | |
4f1c942b MM |
2278 | |
2279 | return size; | |
bb9ea79e AL |
2280 | } |
2281 | ||
2282 | static void net_dump_cleanup(VLANClientState *vc) | |
2283 | { | |
2284 | DumpState *s = vc->opaque; | |
2285 | ||
2286 | close(s->fd); | |
2287 | qemu_free(s); | |
2288 | } | |
2289 | ||
10ae5a7a | 2290 | static int net_dump_init(Monitor *mon, VLANState *vlan, const char *device, |
bb9ea79e AL |
2291 | const char *name, const char *filename, int len) |
2292 | { | |
2293 | struct pcap_file_hdr hdr; | |
2294 | DumpState *s; | |
2295 | ||
2296 | s = qemu_malloc(sizeof(DumpState)); | |
2297 | ||
024431b3 | 2298 | s->fd = open(filename, O_CREAT | O_WRONLY | O_BINARY, 0644); |
bb9ea79e | 2299 | if (s->fd < 0) { |
10ae5a7a | 2300 | config_error(mon, "-net dump: can't open %s\n", filename); |
bb9ea79e AL |
2301 | return -1; |
2302 | } | |
2303 | ||
2304 | s->pcap_caplen = len; | |
2305 | ||
2306 | hdr.magic = PCAP_MAGIC; | |
2307 | hdr.version_major = 2; | |
2308 | hdr.version_minor = 4; | |
2309 | hdr.thiszone = 0; | |
2310 | hdr.sigfigs = 0; | |
2311 | hdr.snaplen = s->pcap_caplen; | |
2312 | hdr.linktype = 1; | |
2313 | ||
2314 | if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) { | |
10ae5a7a | 2315 | config_error(mon, "-net dump write error: %s\n", strerror(errno)); |
bb9ea79e AL |
2316 | close(s->fd); |
2317 | qemu_free(s); | |
2318 | return -1; | |
2319 | } | |
2320 | ||
463af534 | 2321 | s->pcap_vc = qemu_new_vlan_client(vlan, device, name, NULL, dump_receive, NULL, |
bb9ea79e AL |
2322 | net_dump_cleanup, s); |
2323 | snprintf(s->pcap_vc->info_str, sizeof(s->pcap_vc->info_str), | |
2324 | "dump to %s (len=%d)", filename, len); | |
2325 | return 0; | |
2326 | } | |
2327 | ||
63a01ef8 | 2328 | /* find or alloc a new VLAN */ |
1a609520 | 2329 | VLANState *qemu_find_vlan(int id, int allocate) |
63a01ef8 AL |
2330 | { |
2331 | VLANState **pvlan, *vlan; | |
2332 | for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { | |
2333 | if (vlan->id == id) | |
2334 | return vlan; | |
2335 | } | |
1a609520 JK |
2336 | if (!allocate) { |
2337 | return NULL; | |
2338 | } | |
63a01ef8 | 2339 | vlan = qemu_mallocz(sizeof(VLANState)); |
63a01ef8 | 2340 | vlan->id = id; |
72cf2d4f | 2341 | QTAILQ_INIT(&vlan->send_queue); |
63a01ef8 AL |
2342 | vlan->next = NULL; |
2343 | pvlan = &first_vlan; | |
2344 | while (*pvlan != NULL) | |
2345 | pvlan = &(*pvlan)->next; | |
2346 | *pvlan = vlan; | |
2347 | return vlan; | |
2348 | } | |
2349 | ||
7697079b AL |
2350 | static int nic_get_free_idx(void) |
2351 | { | |
2352 | int index; | |
2353 | ||
2354 | for (index = 0; index < MAX_NICS; index++) | |
2355 | if (!nd_table[index].used) | |
2356 | return index; | |
2357 | return -1; | |
2358 | } | |
2359 | ||
07caea31 MA |
2360 | int qemu_show_nic_models(const char *arg, const char *const *models) |
2361 | { | |
2362 | int i; | |
2363 | ||
2364 | if (!arg || strcmp(arg, "?")) | |
2365 | return 0; | |
2366 | ||
2367 | fprintf(stderr, "qemu: Supported NIC models: "); | |
2368 | for (i = 0 ; models[i]; i++) | |
2369 | fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n'); | |
2370 | return 1; | |
2371 | } | |
2372 | ||
d07f22c5 AL |
2373 | void qemu_check_nic_model(NICInfo *nd, const char *model) |
2374 | { | |
2375 | const char *models[2]; | |
2376 | ||
2377 | models[0] = model; | |
2378 | models[1] = NULL; | |
2379 | ||
07caea31 MA |
2380 | if (qemu_show_nic_models(nd->model, models)) |
2381 | exit(0); | |
2382 | if (qemu_find_nic_model(nd, models, model) < 0) | |
2383 | exit(1); | |
d07f22c5 AL |
2384 | } |
2385 | ||
07caea31 MA |
2386 | int qemu_find_nic_model(NICInfo *nd, const char * const *models, |
2387 | const char *default_model) | |
d07f22c5 | 2388 | { |
07caea31 | 2389 | int i; |
d07f22c5 AL |
2390 | |
2391 | if (!nd->model) | |
32a8e14a | 2392 | nd->model = qemu_strdup(default_model); |
d07f22c5 | 2393 | |
07caea31 MA |
2394 | for (i = 0 ; models[i]; i++) { |
2395 | if (strcmp(nd->model, models[i]) == 0) | |
2396 | return i; | |
d07f22c5 AL |
2397 | } |
2398 | ||
07caea31 MA |
2399 | qemu_error("qemu: Unsupported NIC model: %s\n", nd->model); |
2400 | return -1; | |
d07f22c5 AL |
2401 | } |
2402 | ||
c1d6eed7 MM |
2403 | static int net_handle_fd_param(Monitor *mon, const char *param) |
2404 | { | |
2405 | if (!qemu_isdigit(param[0])) { | |
2406 | int fd; | |
2407 | ||
2408 | fd = monitor_get_fd(mon, param); | |
2409 | if (fd == -1) { | |
2410 | config_error(mon, "No file descriptor named %s found", param); | |
2411 | return -1; | |
2412 | } | |
2413 | ||
2414 | return fd; | |
2415 | } else { | |
2416 | return strtol(param, NULL, 0); | |
2417 | } | |
2418 | } | |
2419 | ||
10ae5a7a | 2420 | int net_client_init(Monitor *mon, const char *device, const char *p) |
63a01ef8 AL |
2421 | { |
2422 | char buf[1024]; | |
2423 | int vlan_id, ret; | |
2424 | VLANState *vlan; | |
7a9f6e4a | 2425 | char *name = NULL; |
63a01ef8 AL |
2426 | |
2427 | vlan_id = 0; | |
2428 | if (get_param_value(buf, sizeof(buf), "vlan", p)) { | |
2429 | vlan_id = strtol(buf, NULL, 0); | |
2430 | } | |
1a609520 | 2431 | vlan = qemu_find_vlan(vlan_id, 1); |
9036de1a | 2432 | |
7a9f6e4a | 2433 | if (get_param_value(buf, sizeof(buf), "name", p)) { |
10ae5a7a | 2434 | name = qemu_strdup(buf); |
7a9f6e4a | 2435 | } |
63a01ef8 | 2436 | if (!strcmp(device, "nic")) { |
8e4416af | 2437 | static const char * const nic_params[] = { |
eb54b6dc | 2438 | "vlan", "name", "macaddr", "model", "addr", "id", "vectors", NULL |
8e4416af | 2439 | }; |
63a01ef8 AL |
2440 | NICInfo *nd; |
2441 | uint8_t *macaddr; | |
7697079b | 2442 | int idx = nic_get_free_idx(); |
63a01ef8 | 2443 | |
0aa7a205 | 2444 | if (check_params(buf, sizeof(buf), nic_params, p) < 0) { |
10ae5a7a JK |
2445 | config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p); |
2446 | ret = -1; | |
2447 | goto out; | |
8e4416af | 2448 | } |
7697079b | 2449 | if (idx == -1 || nb_nics >= MAX_NICS) { |
10ae5a7a | 2450 | config_error(mon, "Too Many NICs\n"); |
771f1339 AL |
2451 | ret = -1; |
2452 | goto out; | |
63a01ef8 | 2453 | } |
7697079b | 2454 | nd = &nd_table[idx]; |
d2cffe30 | 2455 | memset(nd, 0, sizeof(*nd)); |
63a01ef8 AL |
2456 | macaddr = nd->macaddr; |
2457 | macaddr[0] = 0x52; | |
2458 | macaddr[1] = 0x54; | |
2459 | macaddr[2] = 0x00; | |
2460 | macaddr[3] = 0x12; | |
2461 | macaddr[4] = 0x34; | |
7697079b | 2462 | macaddr[5] = 0x56 + idx; |
63a01ef8 AL |
2463 | |
2464 | if (get_param_value(buf, sizeof(buf), "macaddr", p)) { | |
2465 | if (parse_macaddr(macaddr, buf) < 0) { | |
10ae5a7a | 2466 | config_error(mon, "invalid syntax for ethernet address\n"); |
771f1339 AL |
2467 | ret = -1; |
2468 | goto out; | |
63a01ef8 AL |
2469 | } |
2470 | } | |
2471 | if (get_param_value(buf, sizeof(buf), "model", p)) { | |
32a8e14a | 2472 | nd->model = qemu_strdup(buf); |
63a01ef8 | 2473 | } |
5607c388 | 2474 | if (get_param_value(buf, sizeof(buf), "addr", p)) { |
32a8e14a | 2475 | nd->devaddr = qemu_strdup(buf); |
5607c388 | 2476 | } |
eb54b6dc | 2477 | if (get_param_value(buf, sizeof(buf), "id", p)) { |
32a8e14a | 2478 | nd->id = qemu_strdup(buf); |
eb54b6dc | 2479 | } |
ffe6370c MT |
2480 | nd->nvectors = NIC_NVECTORS_UNSPECIFIED; |
2481 | if (get_param_value(buf, sizeof(buf), "vectors", p)) { | |
2482 | char *endptr; | |
2483 | long vectors = strtol(buf, &endptr, 0); | |
2484 | if (*endptr) { | |
2485 | config_error(mon, "invalid syntax for # of vectors\n"); | |
2486 | ret = -1; | |
2487 | goto out; | |
2488 | } | |
2489 | if (vectors < 0 || vectors > 0x7ffffff) { | |
2490 | config_error(mon, "invalid # of vectors\n"); | |
2491 | ret = -1; | |
2492 | goto out; | |
2493 | } | |
2494 | nd->nvectors = vectors; | |
2495 | } | |
63a01ef8 | 2496 | nd->vlan = vlan; |
7a9f6e4a | 2497 | nd->name = name; |
7697079b | 2498 | nd->used = 1; |
7a9f6e4a | 2499 | name = NULL; |
63a01ef8 AL |
2500 | nb_nics++; |
2501 | vlan->nb_guest_devs++; | |
4d73cd3b | 2502 | ret = idx; |
63a01ef8 AL |
2503 | } else |
2504 | if (!strcmp(device, "none")) { | |
8e4416af | 2505 | if (*p != '\0') { |
10ae5a7a JK |
2506 | config_error(mon, "'none' takes no parameters\n"); |
2507 | ret = -1; | |
2508 | goto out; | |
8e4416af | 2509 | } |
63a01ef8 AL |
2510 | /* does nothing. It is needed to signal that no network cards |
2511 | are wanted */ | |
2512 | ret = 0; | |
2513 | } else | |
2514 | #ifdef CONFIG_SLIRP | |
2515 | if (!strcmp(device, "user")) { | |
8e4416af | 2516 | static const char * const slirp_params[] = { |
c92ef6a2 JK |
2517 | "vlan", "name", "hostname", "restrict", "ip", "net", "host", |
2518 | "tftp", "bootfile", "dhcpstart", "dns", "smb", "smbserver", | |
2519 | "hostfwd", "guestfwd", NULL | |
8e4416af | 2520 | }; |
ad196a9d | 2521 | struct slirp_config_str *config; |
c92ef6a2 JK |
2522 | int restricted = 0; |
2523 | char *vnet = NULL; | |
2524 | char *vhost = NULL; | |
2525 | char *vhostname = NULL; | |
ad196a9d JK |
2526 | char *tftp_export = NULL; |
2527 | char *bootfile = NULL; | |
c92ef6a2 JK |
2528 | char *vdhcp_start = NULL; |
2529 | char *vnamesrv = NULL; | |
ad196a9d | 2530 | char *smb_export = NULL; |
c92ef6a2 | 2531 | char *vsmbsrv = NULL; |
ad196a9d | 2532 | const char *q; |
b8e8af38 | 2533 | |
0aa7a205 | 2534 | if (check_params(buf, sizeof(buf), slirp_params, p) < 0) { |
10ae5a7a JK |
2535 | config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p); |
2536 | ret = -1; | |
2537 | goto out; | |
8e4416af | 2538 | } |
c92ef6a2 | 2539 | if (get_param_value(buf, sizeof(buf), "ip", p)) { |
3da6abd4 | 2540 | int vnet_buflen = strlen(buf) + strlen("/24") + 1; |
c92ef6a2 | 2541 | /* emulate legacy parameter */ |
3da6abd4 BS |
2542 | vnet = qemu_malloc(vnet_buflen); |
2543 | pstrcpy(vnet, vnet_buflen, buf); | |
2544 | pstrcat(vnet, vnet_buflen, "/24"); | |
c92ef6a2 JK |
2545 | } |
2546 | if (get_param_value(buf, sizeof(buf), "net", p)) { | |
2547 | vnet = qemu_strdup(buf); | |
2548 | } | |
2549 | if (get_param_value(buf, sizeof(buf), "host", p)) { | |
2550 | vhost = qemu_strdup(buf); | |
2551 | } | |
63a01ef8 | 2552 | if (get_param_value(buf, sizeof(buf), "hostname", p)) { |
c92ef6a2 | 2553 | vhostname = qemu_strdup(buf); |
63a01ef8 | 2554 | } |
49ec9b40 | 2555 | if (get_param_value(buf, sizeof(buf), "restrict", p)) { |
b8e8af38 | 2556 | restricted = (buf[0] == 'y') ? 1 : 0; |
49ec9b40 | 2557 | } |
c92ef6a2 JK |
2558 | if (get_param_value(buf, sizeof(buf), "dhcpstart", p)) { |
2559 | vdhcp_start = qemu_strdup(buf); | |
2560 | } | |
2561 | if (get_param_value(buf, sizeof(buf), "dns", p)) { | |
2562 | vnamesrv = qemu_strdup(buf); | |
49ec9b40 | 2563 | } |
ad196a9d JK |
2564 | if (get_param_value(buf, sizeof(buf), "tftp", p)) { |
2565 | tftp_export = qemu_strdup(buf); | |
2566 | } | |
2567 | if (get_param_value(buf, sizeof(buf), "bootfile", p)) { | |
2568 | bootfile = qemu_strdup(buf); | |
2569 | } | |
2570 | if (get_param_value(buf, sizeof(buf), "smb", p)) { | |
2571 | smb_export = qemu_strdup(buf); | |
c92ef6a2 JK |
2572 | if (get_param_value(buf, sizeof(buf), "smbserver", p)) { |
2573 | vsmbsrv = qemu_strdup(buf); | |
2574 | } | |
ad196a9d JK |
2575 | } |
2576 | q = p; | |
2577 | while (1) { | |
2578 | config = qemu_malloc(sizeof(*config)); | |
2579 | if (!get_next_param_value(config->str, sizeof(config->str), | |
c92ef6a2 | 2580 | "hostfwd", &q)) { |
ad196a9d JK |
2581 | break; |
2582 | } | |
c92ef6a2 | 2583 | config->flags = SLIRP_CFG_HOSTFWD; |
ad196a9d JK |
2584 | config->next = slirp_configs; |
2585 | slirp_configs = config; | |
2586 | config = NULL; | |
2587 | } | |
2588 | q = p; | |
2589 | while (1) { | |
2590 | config = qemu_malloc(sizeof(*config)); | |
2591 | if (!get_next_param_value(config->str, sizeof(config->str), | |
c92ef6a2 | 2592 | "guestfwd", &q)) { |
ad196a9d JK |
2593 | break; |
2594 | } | |
2595 | config->flags = 0; | |
2596 | config->next = slirp_configs; | |
2597 | slirp_configs = config; | |
2598 | config = NULL; | |
2599 | } | |
2600 | qemu_free(config); | |
63a01ef8 | 2601 | vlan->nb_host_devs++; |
c92ef6a2 JK |
2602 | ret = net_slirp_init(mon, vlan, device, name, restricted, vnet, vhost, |
2603 | vhostname, tftp_export, bootfile, vdhcp_start, | |
2604 | vnamesrv, smb_export, vsmbsrv); | |
3a179c66 MA |
2605 | while (slirp_configs) { |
2606 | config = slirp_configs; | |
2607 | slirp_configs = config->next; | |
2608 | qemu_free(config); | |
2609 | } | |
c92ef6a2 JK |
2610 | qemu_free(vnet); |
2611 | qemu_free(vhost); | |
2612 | qemu_free(vhostname); | |
ad196a9d JK |
2613 | qemu_free(tftp_export); |
2614 | qemu_free(bootfile); | |
c92ef6a2 JK |
2615 | qemu_free(vdhcp_start); |
2616 | qemu_free(vnamesrv); | |
ad196a9d | 2617 | qemu_free(smb_export); |
c92ef6a2 | 2618 | qemu_free(vsmbsrv); |
8ca9217d | 2619 | } else if (!strcmp(device, "channel")) { |
72cf2d4f | 2620 | if (QTAILQ_EMPTY(&slirp_stacks)) { |
ad196a9d JK |
2621 | struct slirp_config_str *config; |
2622 | ||
2623 | config = qemu_malloc(sizeof(*config)); | |
2624 | pstrcpy(config->str, sizeof(config->str), p); | |
c92ef6a2 | 2625 | config->flags = SLIRP_CFG_LEGACY; |
ad196a9d JK |
2626 | config->next = slirp_configs; |
2627 | slirp_configs = config; | |
0752706d | 2628 | ret = 0; |
ad196a9d | 2629 | } else { |
0752706d | 2630 | ret = slirp_guestfwd(QTAILQ_FIRST(&slirp_stacks), mon, p, 1); |
8ca9217d | 2631 | } |
63a01ef8 AL |
2632 | } else |
2633 | #endif | |
2634 | #ifdef _WIN32 | |
2635 | if (!strcmp(device, "tap")) { | |
8e4416af AL |
2636 | static const char * const tap_params[] = { |
2637 | "vlan", "name", "ifname", NULL | |
2638 | }; | |
63a01ef8 | 2639 | char ifname[64]; |
8e4416af | 2640 | |
0aa7a205 | 2641 | if (check_params(buf, sizeof(buf), tap_params, p) < 0) { |
10ae5a7a JK |
2642 | config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p); |
2643 | ret = -1; | |
2644 | goto out; | |
8e4416af | 2645 | } |
63a01ef8 | 2646 | if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) { |
10ae5a7a | 2647 | config_error(mon, "tap: no interface name\n"); |
771f1339 AL |
2648 | ret = -1; |
2649 | goto out; | |
63a01ef8 AL |
2650 | } |
2651 | vlan->nb_host_devs++; | |
7a9f6e4a | 2652 | ret = tap_win32_init(vlan, device, name, ifname); |
63a01ef8 | 2653 | } else |
b29fe3ed | 2654 | #elif defined (_AIX) |
63a01ef8 AL |
2655 | #else |
2656 | if (!strcmp(device, "tap")) { | |
0aa7a205 | 2657 | char ifname[64], chkbuf[64]; |
63a01ef8 | 2658 | char setup_script[1024], down_script[1024]; |
4a77b25e | 2659 | TAPState *s; |
63a01ef8 AL |
2660 | int fd; |
2661 | vlan->nb_host_devs++; | |
2662 | if (get_param_value(buf, sizeof(buf), "fd", p) > 0) { | |
0df0ff6d MM |
2663 | static const char * const fd_params[] = { |
2664 | "vlan", "name", "fd", "sndbuf", NULL | |
2665 | }; | |
c1d6eed7 | 2666 | ret = -1; |
0aa7a205 | 2667 | if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) { |
10ae5a7a | 2668 | config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); |
10ae5a7a | 2669 | goto out; |
8e4416af | 2670 | } |
c1d6eed7 MM |
2671 | fd = net_handle_fd_param(mon, buf); |
2672 | if (fd == -1) { | |
2673 | goto out; | |
2674 | } | |
63a01ef8 | 2675 | fcntl(fd, F_SETFL, O_NONBLOCK); |
4a77b25e | 2676 | s = net_tap_fd_init(vlan, device, name, fd); |
c1d6eed7 MM |
2677 | if (!s) { |
2678 | close(fd); | |
2679 | } | |
63a01ef8 | 2680 | } else { |
8e4416af | 2681 | static const char * const tap_params[] = { |
0df0ff6d | 2682 | "vlan", "name", "ifname", "script", "downscript", "sndbuf", NULL |
8e4416af | 2683 | }; |
0aa7a205 | 2684 | if (check_params(chkbuf, sizeof(chkbuf), tap_params, p) < 0) { |
10ae5a7a JK |
2685 | config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); |
2686 | ret = -1; | |
2687 | goto out; | |
8e4416af | 2688 | } |
63a01ef8 AL |
2689 | if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) { |
2690 | ifname[0] = '\0'; | |
2691 | } | |
2692 | if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) { | |
2693 | pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT); | |
2694 | } | |
2695 | if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) { | |
2696 | pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT); | |
2697 | } | |
4a77b25e MM |
2698 | s = net_tap_init(vlan, device, name, ifname, setup_script, down_script); |
2699 | } | |
2700 | if (s != NULL) { | |
fc5b81d1 | 2701 | const char *sndbuf_str = NULL; |
0df0ff6d | 2702 | if (get_param_value(buf, sizeof(buf), "sndbuf", p)) { |
fc5b81d1 | 2703 | sndbuf_str = buf; |
0df0ff6d | 2704 | } |
0752706d | 2705 | ret = tap_set_sndbuf(s, sndbuf_str, mon); |
4a77b25e MM |
2706 | } else { |
2707 | ret = -1; | |
63a01ef8 AL |
2708 | } |
2709 | } else | |
2710 | #endif | |
2711 | if (!strcmp(device, "socket")) { | |
0aa7a205 | 2712 | char chkbuf[64]; |
63a01ef8 | 2713 | if (get_param_value(buf, sizeof(buf), "fd", p) > 0) { |
0df0ff6d MM |
2714 | static const char * const fd_params[] = { |
2715 | "vlan", "name", "fd", NULL | |
2716 | }; | |
63a01ef8 | 2717 | int fd; |
c1d6eed7 | 2718 | ret = -1; |
0aa7a205 | 2719 | if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) { |
10ae5a7a | 2720 | config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); |
10ae5a7a | 2721 | goto out; |
8e4416af | 2722 | } |
c1d6eed7 MM |
2723 | fd = net_handle_fd_param(mon, buf); |
2724 | if (fd == -1) { | |
2725 | goto out; | |
2726 | } | |
2727 | if (!net_socket_fd_init(vlan, device, name, fd, 1)) { | |
2728 | close(fd); | |
2729 | goto out; | |
2730 | } | |
2731 | ret = 0; | |
63a01ef8 | 2732 | } else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) { |
8e4416af AL |
2733 | static const char * const listen_params[] = { |
2734 | "vlan", "name", "listen", NULL | |
2735 | }; | |
0aa7a205 | 2736 | if (check_params(chkbuf, sizeof(chkbuf), listen_params, p) < 0) { |
10ae5a7a JK |
2737 | config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); |
2738 | ret = -1; | |
2739 | goto out; | |
8e4416af | 2740 | } |
7a9f6e4a | 2741 | ret = net_socket_listen_init(vlan, device, name, buf); |
63a01ef8 | 2742 | } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) { |
8e4416af AL |
2743 | static const char * const connect_params[] = { |
2744 | "vlan", "name", "connect", NULL | |
2745 | }; | |
0aa7a205 | 2746 | if (check_params(chkbuf, sizeof(chkbuf), connect_params, p) < 0) { |
10ae5a7a JK |
2747 | config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); |
2748 | ret = -1; | |
2749 | goto out; | |
8e4416af | 2750 | } |
7a9f6e4a | 2751 | ret = net_socket_connect_init(vlan, device, name, buf); |
63a01ef8 | 2752 | } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) { |
8e4416af AL |
2753 | static const char * const mcast_params[] = { |
2754 | "vlan", "name", "mcast", NULL | |
2755 | }; | |
0aa7a205 | 2756 | if (check_params(chkbuf, sizeof(chkbuf), mcast_params, p) < 0) { |
10ae5a7a JK |
2757 | config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); |
2758 | ret = -1; | |
2759 | goto out; | |
8e4416af | 2760 | } |
7a9f6e4a | 2761 | ret = net_socket_mcast_init(vlan, device, name, buf); |
63a01ef8 | 2762 | } else { |
10ae5a7a | 2763 | config_error(mon, "Unknown socket options: %s\n", p); |
771f1339 AL |
2764 | ret = -1; |
2765 | goto out; | |
63a01ef8 AL |
2766 | } |
2767 | vlan->nb_host_devs++; | |
2768 | } else | |
2769 | #ifdef CONFIG_VDE | |
2770 | if (!strcmp(device, "vde")) { | |
8e4416af AL |
2771 | static const char * const vde_params[] = { |
2772 | "vlan", "name", "sock", "port", "group", "mode", NULL | |
2773 | }; | |
63a01ef8 AL |
2774 | char vde_sock[1024], vde_group[512]; |
2775 | int vde_port, vde_mode; | |
8e4416af | 2776 | |
0aa7a205 | 2777 | if (check_params(buf, sizeof(buf), vde_params, p) < 0) { |
10ae5a7a JK |
2778 | config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p); |
2779 | ret = -1; | |
2780 | goto out; | |
8e4416af | 2781 | } |
63a01ef8 AL |
2782 | vlan->nb_host_devs++; |
2783 | if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) { | |
2784 | vde_sock[0] = '\0'; | |
2785 | } | |
2786 | if (get_param_value(buf, sizeof(buf), "port", p) > 0) { | |
2787 | vde_port = strtol(buf, NULL, 10); | |
2788 | } else { | |
2789 | vde_port = 0; | |
2790 | } | |
2791 | if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) { | |
2792 | vde_group[0] = '\0'; | |
2793 | } | |
2794 | if (get_param_value(buf, sizeof(buf), "mode", p) > 0) { | |
2795 | vde_mode = strtol(buf, NULL, 8); | |
2796 | } else { | |
2797 | vde_mode = 0700; | |
2798 | } | |
7a9f6e4a | 2799 | ret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode); |
63a01ef8 AL |
2800 | } else |
2801 | #endif | |
bb9ea79e AL |
2802 | if (!strcmp(device, "dump")) { |
2803 | int len = 65536; | |
2804 | ||
2805 | if (get_param_value(buf, sizeof(buf), "len", p) > 0) { | |
2806 | len = strtol(buf, NULL, 0); | |
2807 | } | |
2808 | if (!get_param_value(buf, sizeof(buf), "file", p)) { | |
2809 | snprintf(buf, sizeof(buf), "qemu-vlan%d.pcap", vlan_id); | |
2810 | } | |
10ae5a7a | 2811 | ret = net_dump_init(mon, vlan, device, name, buf, len); |
bb9ea79e | 2812 | } else { |
10ae5a7a | 2813 | config_error(mon, "Unknown network device: %s\n", device); |
771f1339 AL |
2814 | ret = -1; |
2815 | goto out; | |
63a01ef8 AL |
2816 | } |
2817 | if (ret < 0) { | |
10ae5a7a | 2818 | config_error(mon, "Could not initialize device '%s'\n", device); |
63a01ef8 | 2819 | } |
771f1339 | 2820 | out: |
10ae5a7a | 2821 | qemu_free(name); |
63a01ef8 AL |
2822 | return ret; |
2823 | } | |
2824 | ||
8b13c4a7 AL |
2825 | void net_client_uninit(NICInfo *nd) |
2826 | { | |
2827 | nd->vlan->nb_guest_devs--; | |
2828 | nb_nics--; | |
a9796703 | 2829 | |
9203f520 MM |
2830 | qemu_free(nd->model); |
2831 | qemu_free(nd->name); | |
2832 | qemu_free(nd->devaddr); | |
2833 | qemu_free(nd->id); | |
a9796703 | 2834 | |
d2cffe30 | 2835 | nd->used = 0; |
8b13c4a7 AL |
2836 | } |
2837 | ||
6f338c34 AL |
2838 | static int net_host_check_device(const char *device) |
2839 | { | |
2840 | int i; | |
bb9ea79e | 2841 | const char *valid_param_list[] = { "tap", "socket", "dump" |
6f338c34 AL |
2842 | #ifdef CONFIG_SLIRP |
2843 | ,"user" | |
2844 | #endif | |
2845 | #ifdef CONFIG_VDE | |
2846 | ,"vde" | |
2847 | #endif | |
2848 | }; | |
2849 | for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) { | |
2850 | if (!strncmp(valid_param_list[i], device, | |
2851 | strlen(valid_param_list[i]))) | |
2852 | return 1; | |
2853 | } | |
2854 | ||
2855 | return 0; | |
2856 | } | |
2857 | ||
f18c16de | 2858 | void net_host_device_add(Monitor *mon, const QDict *qdict) |
6f338c34 | 2859 | { |
f18c16de LC |
2860 | const char *device = qdict_get_str(qdict, "device"); |
2861 | const char *opts = qdict_get_try_str(qdict, "opts"); | |
2862 | ||
6f338c34 | 2863 | if (!net_host_check_device(device)) { |
376253ec | 2864 | monitor_printf(mon, "invalid host network device %s\n", device); |
6f338c34 AL |
2865 | return; |
2866 | } | |
10ae5a7a | 2867 | if (net_client_init(mon, device, opts ? opts : "") < 0) { |
5c8be678 AL |
2868 | monitor_printf(mon, "adding host network device %s failed\n", device); |
2869 | } | |
6f338c34 AL |
2870 | } |
2871 | ||
f18c16de | 2872 | void net_host_device_remove(Monitor *mon, const QDict *qdict) |
6f338c34 | 2873 | { |
6f338c34 | 2874 | VLANClientState *vc; |
f18c16de LC |
2875 | int vlan_id = qdict_get_int(qdict, "vlan_id"); |
2876 | const char *device = qdict_get_str(qdict, "device"); | |
6f338c34 | 2877 | |
1a609520 | 2878 | vc = qemu_find_vlan_client_by_name(mon, vlan_id, device); |
6f338c34 | 2879 | if (!vc) { |
6f338c34 AL |
2880 | return; |
2881 | } | |
e8f1f9db AL |
2882 | if (!net_host_check_device(vc->model)) { |
2883 | monitor_printf(mon, "invalid host network device %s\n", device); | |
2884 | return; | |
2885 | } | |
6f338c34 AL |
2886 | qemu_del_vlan_client(vc); |
2887 | } | |
2888 | ||
63a01ef8 AL |
2889 | int net_client_parse(const char *str) |
2890 | { | |
2891 | const char *p; | |
2892 | char *q; | |
2893 | char device[64]; | |
2894 | ||
2895 | p = str; | |
2896 | q = device; | |
2897 | while (*p != '\0' && *p != ',') { | |
2898 | if ((q - device) < sizeof(device) - 1) | |
2899 | *q++ = *p; | |
2900 | p++; | |
2901 | } | |
2902 | *q = '\0'; | |
2903 | if (*p == ',') | |
2904 | p++; | |
2905 | ||
10ae5a7a | 2906 | return net_client_init(NULL, device, p); |
63a01ef8 AL |
2907 | } |
2908 | ||
406c8df3 GC |
2909 | void net_set_boot_mask(int net_boot_mask) |
2910 | { | |
2911 | int i; | |
2912 | ||
2913 | /* Only the first four NICs may be bootable */ | |
2914 | net_boot_mask = net_boot_mask & 0xF; | |
2915 | ||
2916 | for (i = 0; i < nb_nics; i++) { | |
2917 | if (net_boot_mask & (1 << i)) { | |
2918 | nd_table[i].bootable = 1; | |
2919 | net_boot_mask &= ~(1 << i); | |
2920 | } | |
2921 | } | |
2922 | ||
2923 | if (net_boot_mask) { | |
2924 | fprintf(stderr, "Cannot boot from non-existent NIC\n"); | |
2925 | exit(1); | |
2926 | } | |
2927 | } | |
2928 | ||
376253ec | 2929 | void do_info_network(Monitor *mon) |
63a01ef8 AL |
2930 | { |
2931 | VLANState *vlan; | |
2932 | VLANClientState *vc; | |
2933 | ||
2934 | for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { | |
376253ec | 2935 | monitor_printf(mon, "VLAN %d devices:\n", vlan->id); |
63a01ef8 | 2936 | for(vc = vlan->first_client; vc != NULL; vc = vc->next) |
376253ec | 2937 | monitor_printf(mon, " %s: %s\n", vc->name, vc->info_str); |
63a01ef8 AL |
2938 | } |
2939 | } | |
2940 | ||
f18c16de | 2941 | void do_set_link(Monitor *mon, const QDict *qdict) |
436e5e53 AL |
2942 | { |
2943 | VLANState *vlan; | |
2944 | VLANClientState *vc = NULL; | |
f18c16de LC |
2945 | const char *name = qdict_get_str(qdict, "name"); |
2946 | const char *up_or_down = qdict_get_str(qdict, "up_or_down"); | |
436e5e53 AL |
2947 | |
2948 | for (vlan = first_vlan; vlan != NULL; vlan = vlan->next) | |
2949 | for (vc = vlan->first_client; vc != NULL; vc = vc->next) | |
2950 | if (strcmp(vc->name, name) == 0) | |
dd5de373 EI |
2951 | goto done; |
2952 | done: | |
436e5e53 AL |
2953 | |
2954 | if (!vc) { | |
7dc3fa09 | 2955 | monitor_printf(mon, "could not find network device '%s'\n", name); |
c3cf0d3f | 2956 | return; |
436e5e53 AL |
2957 | } |
2958 | ||
2959 | if (strcmp(up_or_down, "up") == 0) | |
2960 | vc->link_down = 0; | |
2961 | else if (strcmp(up_or_down, "down") == 0) | |
2962 | vc->link_down = 1; | |
2963 | else | |
376253ec AL |
2964 | monitor_printf(mon, "invalid link status '%s'; only 'up' or 'down' " |
2965 | "valid\n", up_or_down); | |
436e5e53 | 2966 | |
34b25ca7 AL |
2967 | if (vc->link_status_changed) |
2968 | vc->link_status_changed(vc); | |
436e5e53 AL |
2969 | } |
2970 | ||
63a01ef8 AL |
2971 | void net_cleanup(void) |
2972 | { | |
2973 | VLANState *vlan; | |
2974 | ||
63a01ef8 AL |
2975 | /* close network clients */ |
2976 | for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { | |
b946a153 | 2977 | VLANClientState *vc = vlan->first_client; |
63a01ef8 | 2978 | |
b946a153 AL |
2979 | while (vc) { |
2980 | VLANClientState *next = vc->next; | |
63a01ef8 | 2981 | |
b946a153 AL |
2982 | qemu_del_vlan_client(vc); |
2983 | ||
2984 | vc = next; | |
63a01ef8 AL |
2985 | } |
2986 | } | |
63a01ef8 AL |
2987 | } |
2988 | ||
2989 | void net_client_check(void) | |
2990 | { | |
2991 | VLANState *vlan; | |
2992 | ||
2993 | for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { | |
2994 | if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0) | |
2995 | continue; | |
2996 | if (vlan->nb_guest_devs == 0) | |
2997 | fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id); | |
2998 | if (vlan->nb_host_devs == 0) | |
2999 | fprintf(stderr, | |
3000 | "Warning: vlan %d is not connected to host network\n", | |
3001 | vlan->id); | |
3002 | } | |
3003 | } |