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Commit | Line | Data |
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63a01ef8 AL |
1 | /* |
2 | * QEMU System Emulator | |
3 | * | |
4 | * Copyright (c) 2003-2008 Fabrice Bellard | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
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 | ||
179a2c19 | 32 | /* Needed early for HOST_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> | |
179a2c19 | 55 | #ifdef HOST_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 | ||
104 | #ifdef _WIN32 | |
49dc768d | 105 | #include <windows.h> |
63a01ef8 AL |
106 | #include <malloc.h> |
107 | #include <sys/timeb.h> | |
108 | #include <mmsystem.h> | |
109 | #define getopt_long_only getopt_long | |
110 | #define memalign(align, size) malloc(size) | |
111 | #endif | |
112 | ||
511d2b14 BS |
113 | #include "qemu-common.h" |
114 | #include "net.h" | |
115 | #include "monitor.h" | |
116 | #include "sysemu.h" | |
117 | #include "qemu-timer.h" | |
118 | #include "qemu-char.h" | |
119 | #include "audio/audio.h" | |
120 | #include "qemu_socket.h" | |
bb9ea79e | 121 | #include "qemu-log.h" |
511d2b14 BS |
122 | |
123 | #if defined(CONFIG_SLIRP) | |
124 | #include "libslirp.h" | |
125 | #endif | |
126 | ||
127 | ||
63a01ef8 AL |
128 | static VLANState *first_vlan; |
129 | ||
130 | /***********************************************************/ | |
131 | /* network device redirectors */ | |
132 | ||
133 | #if defined(DEBUG_NET) || defined(DEBUG_SLIRP) | |
134 | static void hex_dump(FILE *f, const uint8_t *buf, int size) | |
135 | { | |
136 | int len, i, j, c; | |
137 | ||
138 | for(i=0;i<size;i+=16) { | |
139 | len = size - i; | |
140 | if (len > 16) | |
141 | len = 16; | |
142 | fprintf(f, "%08x ", i); | |
143 | for(j=0;j<16;j++) { | |
144 | if (j < len) | |
145 | fprintf(f, " %02x", buf[i+j]); | |
146 | else | |
147 | fprintf(f, " "); | |
148 | } | |
149 | fprintf(f, " "); | |
150 | for(j=0;j<len;j++) { | |
151 | c = buf[i+j]; | |
152 | if (c < ' ' || c > '~') | |
153 | c = '.'; | |
154 | fprintf(f, "%c", c); | |
155 | } | |
156 | fprintf(f, "\n"); | |
157 | } | |
158 | } | |
159 | #endif | |
160 | ||
161 | static int parse_macaddr(uint8_t *macaddr, const char *p) | |
162 | { | |
163 | int i; | |
164 | char *last_char; | |
165 | long int offset; | |
166 | ||
167 | errno = 0; | |
168 | offset = strtol(p, &last_char, 0); | |
169 | if (0 == errno && '\0' == *last_char && | |
170 | offset >= 0 && offset <= 0xFFFFFF) { | |
171 | macaddr[3] = (offset & 0xFF0000) >> 16; | |
172 | macaddr[4] = (offset & 0xFF00) >> 8; | |
173 | macaddr[5] = offset & 0xFF; | |
174 | return 0; | |
175 | } else { | |
176 | for(i = 0; i < 6; i++) { | |
177 | macaddr[i] = strtol(p, (char **)&p, 16); | |
178 | if (i == 5) { | |
179 | if (*p != '\0') | |
180 | return -1; | |
181 | } else { | |
182 | if (*p != ':' && *p != '-') | |
183 | return -1; | |
184 | p++; | |
185 | } | |
186 | } | |
187 | return 0; | |
188 | } | |
189 | ||
190 | return -1; | |
191 | } | |
192 | ||
193 | static int get_str_sep(char *buf, int buf_size, const char **pp, int sep) | |
194 | { | |
195 | const char *p, *p1; | |
196 | int len; | |
197 | p = *pp; | |
198 | p1 = strchr(p, sep); | |
199 | if (!p1) | |
200 | return -1; | |
201 | len = p1 - p; | |
202 | p1++; | |
203 | if (buf_size > 0) { | |
204 | if (len > buf_size - 1) | |
205 | len = buf_size - 1; | |
206 | memcpy(buf, p, len); | |
207 | buf[len] = '\0'; | |
208 | } | |
209 | *pp = p1; | |
210 | return 0; | |
211 | } | |
212 | ||
213 | int parse_host_src_port(struct sockaddr_in *haddr, | |
214 | struct sockaddr_in *saddr, | |
215 | const char *input_str) | |
216 | { | |
217 | char *str = strdup(input_str); | |
218 | char *host_str = str; | |
219 | char *src_str; | |
220 | const char *src_str2; | |
221 | char *ptr; | |
222 | ||
223 | /* | |
224 | * Chop off any extra arguments at the end of the string which | |
225 | * would start with a comma, then fill in the src port information | |
226 | * if it was provided else use the "any address" and "any port". | |
227 | */ | |
228 | if ((ptr = strchr(str,','))) | |
229 | *ptr = '\0'; | |
230 | ||
231 | if ((src_str = strchr(input_str,'@'))) { | |
232 | *src_str = '\0'; | |
233 | src_str++; | |
234 | } | |
235 | ||
236 | if (parse_host_port(haddr, host_str) < 0) | |
237 | goto fail; | |
238 | ||
239 | src_str2 = src_str; | |
240 | if (!src_str || *src_str == '\0') | |
241 | src_str2 = ":0"; | |
242 | ||
243 | if (parse_host_port(saddr, src_str2) < 0) | |
244 | goto fail; | |
245 | ||
246 | free(str); | |
247 | return(0); | |
248 | ||
249 | fail: | |
250 | free(str); | |
251 | return -1; | |
252 | } | |
253 | ||
254 | int parse_host_port(struct sockaddr_in *saddr, const char *str) | |
255 | { | |
256 | char buf[512]; | |
257 | struct hostent *he; | |
258 | const char *p, *r; | |
259 | int port; | |
260 | ||
261 | p = str; | |
262 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) | |
263 | return -1; | |
264 | saddr->sin_family = AF_INET; | |
265 | if (buf[0] == '\0') { | |
266 | saddr->sin_addr.s_addr = 0; | |
267 | } else { | |
cd390083 | 268 | if (qemu_isdigit(buf[0])) { |
63a01ef8 AL |
269 | if (!inet_aton(buf, &saddr->sin_addr)) |
270 | return -1; | |
271 | } else { | |
272 | if ((he = gethostbyname(buf)) == NULL) | |
273 | return - 1; | |
274 | saddr->sin_addr = *(struct in_addr *)he->h_addr; | |
275 | } | |
276 | } | |
277 | port = strtol(p, (char **)&r, 0); | |
278 | if (r == p) | |
279 | return -1; | |
280 | saddr->sin_port = htons(port); | |
281 | return 0; | |
282 | } | |
283 | ||
69d6451c BS |
284 | #if !defined(_WIN32) && 0 |
285 | static int parse_unix_path(struct sockaddr_un *uaddr, const char *str) | |
63a01ef8 AL |
286 | { |
287 | const char *p; | |
288 | int len; | |
289 | ||
290 | len = MIN(108, strlen(str)); | |
291 | p = strchr(str, ','); | |
292 | if (p) | |
293 | len = MIN(len, p - str); | |
294 | ||
295 | memset(uaddr, 0, sizeof(*uaddr)); | |
296 | ||
297 | uaddr->sun_family = AF_UNIX; | |
298 | memcpy(uaddr->sun_path, str, len); | |
299 | ||
300 | return 0; | |
301 | } | |
302 | #endif | |
303 | ||
7cb7434b AL |
304 | void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]) |
305 | { | |
306 | snprintf(vc->info_str, sizeof(vc->info_str), | |
4dda4063 AL |
307 | "model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x", |
308 | vc->model, | |
7cb7434b AL |
309 | macaddr[0], macaddr[1], macaddr[2], |
310 | macaddr[3], macaddr[4], macaddr[5]); | |
311 | } | |
312 | ||
676cff29 AL |
313 | static char *assign_name(VLANClientState *vc1, const char *model) |
314 | { | |
315 | VLANState *vlan; | |
316 | char buf[256]; | |
317 | int id = 0; | |
318 | ||
319 | for (vlan = first_vlan; vlan; vlan = vlan->next) { | |
320 | VLANClientState *vc; | |
321 | ||
322 | for (vc = vlan->first_client; vc; vc = vc->next) | |
323 | if (vc != vc1 && strcmp(vc->model, model) == 0) | |
324 | id++; | |
325 | } | |
326 | ||
327 | snprintf(buf, sizeof(buf), "%s.%d", model, id); | |
328 | ||
329 | return strdup(buf); | |
330 | } | |
331 | ||
63a01ef8 | 332 | VLANClientState *qemu_new_vlan_client(VLANState *vlan, |
bf38c1a0 | 333 | const char *model, |
7a9f6e4a | 334 | const char *name, |
cda9046b MM |
335 | NetCanReceive *can_receive, |
336 | NetReceive *receive, | |
337 | NetReceiveIOV *receive_iov, | |
b946a153 | 338 | NetCleanup *cleanup, |
63a01ef8 AL |
339 | void *opaque) |
340 | { | |
341 | VLANClientState *vc, **pvc; | |
342 | vc = qemu_mallocz(sizeof(VLANClientState)); | |
bf38c1a0 | 343 | vc->model = strdup(model); |
7a9f6e4a AL |
344 | if (name) |
345 | vc->name = strdup(name); | |
346 | else | |
347 | vc->name = assign_name(vc, model); | |
cda9046b MM |
348 | vc->can_receive = can_receive; |
349 | vc->receive = receive; | |
350 | vc->receive_iov = receive_iov; | |
b946a153 | 351 | vc->cleanup = cleanup; |
63a01ef8 AL |
352 | vc->opaque = opaque; |
353 | vc->vlan = vlan; | |
354 | ||
355 | vc->next = NULL; | |
356 | pvc = &vlan->first_client; | |
357 | while (*pvc != NULL) | |
358 | pvc = &(*pvc)->next; | |
359 | *pvc = vc; | |
360 | return vc; | |
361 | } | |
362 | ||
363 | void qemu_del_vlan_client(VLANClientState *vc) | |
364 | { | |
365 | VLANClientState **pvc = &vc->vlan->first_client; | |
366 | ||
367 | while (*pvc != NULL) | |
368 | if (*pvc == vc) { | |
369 | *pvc = vc->next; | |
b946a153 AL |
370 | if (vc->cleanup) { |
371 | vc->cleanup(vc); | |
372 | } | |
676cff29 | 373 | free(vc->name); |
bf38c1a0 | 374 | free(vc->model); |
dad35419 | 375 | qemu_free(vc); |
63a01ef8 AL |
376 | break; |
377 | } else | |
378 | pvc = &(*pvc)->next; | |
379 | } | |
380 | ||
8b13c4a7 AL |
381 | VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque) |
382 | { | |
383 | VLANClientState **pvc = &vlan->first_client; | |
384 | ||
385 | while (*pvc != NULL) | |
386 | if ((*pvc)->opaque == opaque) | |
387 | return *pvc; | |
388 | else | |
389 | pvc = &(*pvc)->next; | |
390 | ||
391 | return NULL; | |
392 | } | |
393 | ||
2e1e0641 | 394 | int qemu_can_send_packet(VLANClientState *sender) |
63a01ef8 | 395 | { |
2e1e0641 | 396 | VLANState *vlan = sender->vlan; |
63a01ef8 AL |
397 | VLANClientState *vc; |
398 | ||
2e1e0641 MM |
399 | for (vc = vlan->first_client; vc != NULL; vc = vc->next) { |
400 | if (vc == sender) { | |
401 | continue; | |
402 | } | |
403 | ||
cda9046b | 404 | /* no can_receive() handler, they can always receive */ |
e3f5ec2b | 405 | if (!vc->can_receive || vc->can_receive(vc)) { |
2e1e0641 | 406 | return 1; |
63a01ef8 AL |
407 | } |
408 | } | |
409 | return 0; | |
410 | } | |
411 | ||
3e021d40 | 412 | static int |
764a4d1d | 413 | qemu_deliver_packet(VLANClientState *sender, const uint8_t *buf, int size) |
63a01ef8 | 414 | { |
63a01ef8 | 415 | VLANClientState *vc; |
3e021d40 | 416 | int ret = -1; |
63a01ef8 | 417 | |
e94667b9 MM |
418 | sender->vlan->delivering = 1; |
419 | ||
764a4d1d | 420 | for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) { |
3e021d40 MM |
421 | ssize_t len; |
422 | ||
423 | if (vc == sender) { | |
424 | continue; | |
764a4d1d | 425 | } |
3e021d40 MM |
426 | |
427 | if (vc->link_down) { | |
428 | ret = size; | |
429 | continue; | |
430 | } | |
431 | ||
432 | len = vc->receive(vc, buf, size); | |
433 | ||
434 | ret = (ret >= 0) ? ret : len; | |
764a4d1d | 435 | } |
3e021d40 | 436 | |
e94667b9 MM |
437 | sender->vlan->delivering = 0; |
438 | ||
3e021d40 | 439 | return ret; |
764a4d1d AL |
440 | } |
441 | ||
8cad5516 MM |
442 | void qemu_purge_queued_packets(VLANClientState *vc) |
443 | { | |
444 | VLANPacket **pp = &vc->vlan->send_queue; | |
445 | ||
446 | while (*pp != NULL) { | |
447 | VLANPacket *packet = *pp; | |
448 | ||
449 | if (packet->sender == vc) { | |
450 | *pp = packet->next; | |
451 | qemu_free(packet); | |
452 | } else { | |
453 | pp = &packet->next; | |
454 | } | |
455 | } | |
456 | } | |
457 | ||
f3b6c7fc | 458 | void qemu_flush_queued_packets(VLANClientState *vc) |
e94667b9 MM |
459 | { |
460 | VLANPacket *packet; | |
461 | ||
462 | while ((packet = vc->vlan->send_queue) != NULL) { | |
f3b6c7fc MM |
463 | int ret; |
464 | ||
e94667b9 | 465 | vc->vlan->send_queue = packet->next; |
f3b6c7fc MM |
466 | |
467 | ret = qemu_deliver_packet(packet->sender, packet->data, packet->size); | |
468 | if (ret == 0 && packet->sent_cb != NULL) { | |
469 | packet->next = vc->vlan->send_queue; | |
470 | vc->vlan->send_queue = packet; | |
471 | break; | |
472 | } | |
473 | ||
474 | if (packet->sent_cb) | |
783527a9 | 475 | packet->sent_cb(packet->sender, ret); |
f3b6c7fc | 476 | |
e94667b9 MM |
477 | qemu_free(packet); |
478 | } | |
479 | } | |
480 | ||
f3b6c7fc MM |
481 | static void qemu_enqueue_packet(VLANClientState *sender, |
482 | const uint8_t *buf, int size, | |
483 | NetPacketSent *sent_cb) | |
e94667b9 MM |
484 | { |
485 | VLANPacket *packet; | |
486 | ||
487 | packet = qemu_malloc(sizeof(VLANPacket) + size); | |
488 | packet->next = sender->vlan->send_queue; | |
489 | packet->sender = sender; | |
490 | packet->size = size; | |
f3b6c7fc | 491 | packet->sent_cb = sent_cb; |
e94667b9 MM |
492 | memcpy(packet->data, buf, size); |
493 | sender->vlan->send_queue = packet; | |
494 | } | |
495 | ||
f3b6c7fc MM |
496 | ssize_t qemu_send_packet_async(VLANClientState *sender, |
497 | const uint8_t *buf, int size, | |
498 | NetPacketSent *sent_cb) | |
764a4d1d | 499 | { |
f3b6c7fc | 500 | int ret; |
764a4d1d | 501 | |
f3b6c7fc MM |
502 | if (sender->link_down) { |
503 | return size; | |
504 | } | |
436e5e53 | 505 | |
63a01ef8 | 506 | #ifdef DEBUG_NET |
f3b6c7fc | 507 | printf("vlan %d send:\n", sender->vlan->id); |
63a01ef8 AL |
508 | hex_dump(stdout, buf, size); |
509 | #endif | |
f3b6c7fc MM |
510 | |
511 | if (sender->vlan->delivering) { | |
512 | qemu_enqueue_packet(sender, buf, size, NULL); | |
513 | return size; | |
514 | } | |
515 | ||
516 | ret = qemu_deliver_packet(sender, buf, size); | |
517 | if (ret == 0 && sent_cb != NULL) { | |
518 | qemu_enqueue_packet(sender, buf, size, sent_cb); | |
519 | return 0; | |
63a01ef8 | 520 | } |
e94667b9 | 521 | |
f3b6c7fc MM |
522 | qemu_flush_queued_packets(sender); |
523 | ||
524 | return ret; | |
525 | } | |
526 | ||
527 | void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size) | |
528 | { | |
529 | qemu_send_packet_async(vc, buf, size, NULL); | |
63a01ef8 AL |
530 | } |
531 | ||
fbe78f4f AL |
532 | static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov, |
533 | int iovcnt) | |
534 | { | |
535 | uint8_t buffer[4096]; | |
536 | size_t offset = 0; | |
537 | int i; | |
538 | ||
539 | for (i = 0; i < iovcnt; i++) { | |
540 | size_t len; | |
541 | ||
542 | len = MIN(sizeof(buffer) - offset, iov[i].iov_len); | |
543 | memcpy(buffer + offset, iov[i].iov_base, len); | |
544 | offset += len; | |
545 | } | |
546 | ||
f3b6c7fc | 547 | return vc->receive(vc, buffer, offset); |
fbe78f4f AL |
548 | } |
549 | ||
e0e7877a AL |
550 | static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt) |
551 | { | |
552 | size_t offset = 0; | |
553 | int i; | |
554 | ||
555 | for (i = 0; i < iovcnt; i++) | |
556 | offset += iov[i].iov_len; | |
557 | return offset; | |
558 | } | |
559 | ||
e94667b9 MM |
560 | static int qemu_deliver_packet_iov(VLANClientState *sender, |
561 | const struct iovec *iov, int iovcnt) | |
fbe78f4f | 562 | { |
fbe78f4f | 563 | VLANClientState *vc; |
e94667b9 MM |
564 | int ret = -1; |
565 | ||
566 | sender->vlan->delivering = 1; | |
567 | ||
568 | for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) { | |
569 | ssize_t len; | |
570 | ||
571 | if (vc == sender) { | |
572 | continue; | |
573 | } | |
574 | ||
575 | if (vc->link_down) { | |
576 | ret = calc_iov_length(iov, iovcnt); | |
577 | continue; | |
578 | } | |
579 | ||
580 | if (vc->receive_iov) { | |
581 | len = vc->receive_iov(vc, iov, iovcnt); | |
582 | } else { | |
583 | len = vc_sendv_compat(vc, iov, iovcnt); | |
584 | } | |
585 | ||
586 | ret = (ret >= 0) ? ret : len; | |
587 | } | |
588 | ||
589 | sender->vlan->delivering = 0; | |
590 | ||
591 | return ret; | |
592 | } | |
593 | ||
594 | static ssize_t qemu_enqueue_packet_iov(VLANClientState *sender, | |
f3b6c7fc MM |
595 | const struct iovec *iov, int iovcnt, |
596 | NetPacketSent *sent_cb) | |
e94667b9 | 597 | { |
c27ff608 | 598 | VLANPacket *packet; |
e94667b9 | 599 | size_t max_len = 0; |
c27ff608 | 600 | int i; |
fbe78f4f | 601 | |
e94667b9 | 602 | max_len = calc_iov_length(iov, iovcnt); |
e0e7877a | 603 | |
e94667b9 MM |
604 | packet = qemu_malloc(sizeof(VLANPacket) + max_len); |
605 | packet->next = sender->vlan->send_queue; | |
606 | packet->sender = sender; | |
f3b6c7fc | 607 | packet->sent_cb = sent_cb; |
e94667b9 | 608 | packet->size = 0; |
c27ff608 | 609 | |
e94667b9 MM |
610 | for (i = 0; i < iovcnt; i++) { |
611 | size_t len = iov[i].iov_len; | |
c27ff608 | 612 | |
e94667b9 MM |
613 | memcpy(packet->data + packet->size, iov[i].iov_base, len); |
614 | packet->size += len; | |
615 | } | |
fbe78f4f | 616 | |
e94667b9 | 617 | sender->vlan->send_queue = packet; |
fbe78f4f | 618 | |
e94667b9 MM |
619 | return packet->size; |
620 | } | |
fbe78f4f | 621 | |
f3b6c7fc MM |
622 | ssize_t qemu_sendv_packet_async(VLANClientState *sender, |
623 | const struct iovec *iov, int iovcnt, | |
624 | NetPacketSent *sent_cb) | |
e94667b9 MM |
625 | { |
626 | int ret; | |
627 | ||
628 | if (sender->link_down) { | |
629 | return calc_iov_length(iov, iovcnt); | |
630 | } | |
631 | ||
632 | if (sender->vlan->delivering) { | |
f3b6c7fc | 633 | return qemu_enqueue_packet_iov(sender, iov, iovcnt, NULL); |
fbe78f4f AL |
634 | } |
635 | ||
e94667b9 | 636 | ret = qemu_deliver_packet_iov(sender, iov, iovcnt); |
f3b6c7fc MM |
637 | if (ret == 0 && sent_cb != NULL) { |
638 | qemu_enqueue_packet_iov(sender, iov, iovcnt, sent_cb); | |
639 | return 0; | |
640 | } | |
e94667b9 MM |
641 | |
642 | qemu_flush_queued_packets(sender); | |
643 | ||
644 | return ret; | |
fbe78f4f AL |
645 | } |
646 | ||
f3b6c7fc MM |
647 | ssize_t |
648 | qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov, int iovcnt) | |
649 | { | |
650 | return qemu_sendv_packet_async(vc, iov, iovcnt, NULL); | |
651 | } | |
652 | ||
10ae5a7a JK |
653 | static void config_error(Monitor *mon, const char *fmt, ...) |
654 | { | |
655 | va_list ap; | |
656 | ||
657 | va_start(ap, fmt); | |
658 | if (mon) { | |
659 | monitor_vprintf(mon, fmt, ap); | |
660 | } else { | |
661 | fprintf(stderr, "qemu: "); | |
662 | vfprintf(stderr, fmt, ap); | |
663 | exit(1); | |
664 | } | |
665 | va_end(ap); | |
666 | } | |
667 | ||
63a01ef8 AL |
668 | #if defined(CONFIG_SLIRP) |
669 | ||
670 | /* slirp network adapter */ | |
671 | ||
b8e8af38 JK |
672 | struct slirp_config_str { |
673 | struct slirp_config_str *next; | |
674 | const char *str; | |
675 | }; | |
676 | ||
63a01ef8 | 677 | static int slirp_inited; |
b8e8af38 JK |
678 | static struct slirp_config_str *slirp_redirs; |
679 | #ifndef _WIN32 | |
680 | static const char *slirp_smb_export; | |
681 | #endif | |
63a01ef8 AL |
682 | static VLANClientState *slirp_vc; |
683 | ||
c5b76b38 | 684 | #ifndef _WIN32 |
b8e8af38 | 685 | static void slirp_smb(const char *exported_dir); |
c5b76b38 | 686 | #endif |
b8e8af38 JK |
687 | static void slirp_redirection(Monitor *mon, const char *redir_str); |
688 | ||
63a01ef8 AL |
689 | int slirp_can_output(void) |
690 | { | |
691 | return !slirp_vc || qemu_can_send_packet(slirp_vc); | |
692 | } | |
693 | ||
694 | void slirp_output(const uint8_t *pkt, int pkt_len) | |
695 | { | |
696 | #ifdef DEBUG_SLIRP | |
697 | printf("slirp output:\n"); | |
698 | hex_dump(stdout, pkt, pkt_len); | |
699 | #endif | |
700 | if (!slirp_vc) | |
701 | return; | |
702 | qemu_send_packet(slirp_vc, pkt, pkt_len); | |
703 | } | |
704 | ||
705 | int slirp_is_inited(void) | |
706 | { | |
707 | return slirp_inited; | |
708 | } | |
709 | ||
4f1c942b | 710 | static ssize_t slirp_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
63a01ef8 AL |
711 | { |
712 | #ifdef DEBUG_SLIRP | |
713 | printf("slirp input:\n"); | |
714 | hex_dump(stdout, buf, size); | |
715 | #endif | |
716 | slirp_input(buf, size); | |
4f1c942b | 717 | return size; |
63a01ef8 AL |
718 | } |
719 | ||
8d6249a7 AL |
720 | static int slirp_in_use; |
721 | ||
722 | static void net_slirp_cleanup(VLANClientState *vc) | |
723 | { | |
724 | slirp_in_use = 0; | |
725 | } | |
726 | ||
b8e8af38 JK |
727 | static int net_slirp_init(VLANState *vlan, const char *model, const char *name, |
728 | int restricted, const char *ip) | |
63a01ef8 | 729 | { |
8d6249a7 AL |
730 | if (slirp_in_use) { |
731 | /* slirp only supports a single instance so far */ | |
732 | return -1; | |
733 | } | |
63a01ef8 AL |
734 | if (!slirp_inited) { |
735 | slirp_inited = 1; | |
b8e8af38 JK |
736 | slirp_init(restricted, ip); |
737 | ||
738 | while (slirp_redirs) { | |
739 | struct slirp_config_str *config = slirp_redirs; | |
740 | ||
741 | slirp_redirection(NULL, config->str); | |
742 | slirp_redirs = config->next; | |
743 | qemu_free(config); | |
744 | } | |
745 | #ifndef _WIN32 | |
746 | if (slirp_smb_export) { | |
747 | slirp_smb(slirp_smb_export); | |
748 | } | |
749 | #endif | |
63a01ef8 | 750 | } |
b8e8af38 | 751 | |
463af534 | 752 | slirp_vc = qemu_new_vlan_client(vlan, model, name, NULL, slirp_receive, |
b8e8af38 | 753 | NULL, net_slirp_cleanup, NULL); |
7cb7434b | 754 | slirp_vc->info_str[0] = '\0'; |
8d6249a7 | 755 | slirp_in_use = 1; |
63a01ef8 AL |
756 | return 0; |
757 | } | |
758 | ||
c1261d8d AG |
759 | static void net_slirp_redir_rm(Monitor *mon, const char *port_str) |
760 | { | |
761 | int host_port; | |
762 | char buf[256] = ""; | |
763 | const char *p = port_str; | |
764 | int is_udp = 0; | |
765 | int n; | |
766 | ||
767 | if (!mon) | |
768 | return; | |
769 | ||
770 | if (!port_str || !port_str[0]) | |
771 | goto fail_syntax; | |
772 | ||
773 | get_str_sep(buf, sizeof(buf), &p, ':'); | |
774 | ||
775 | if (!strcmp(buf, "tcp") || buf[0] == '\0') { | |
776 | is_udp = 0; | |
777 | } else if (!strcmp(buf, "udp")) { | |
778 | is_udp = 1; | |
779 | } else { | |
780 | goto fail_syntax; | |
781 | } | |
782 | ||
783 | host_port = atoi(p); | |
784 | ||
785 | n = slirp_redir_rm(is_udp, host_port); | |
786 | ||
787 | monitor_printf(mon, "removed %d redirections to %s port %d\n", n, | |
788 | is_udp ? "udp" : "tcp", host_port); | |
789 | return; | |
790 | ||
791 | fail_syntax: | |
792 | monitor_printf(mon, "invalid format\n"); | |
793 | } | |
794 | ||
b8e8af38 | 795 | static void slirp_redirection(Monitor *mon, const char *redir_str) |
63a01ef8 | 796 | { |
63a01ef8 AL |
797 | struct in_addr guest_addr; |
798 | int host_port, guest_port; | |
b8e8af38 JK |
799 | const char *p; |
800 | char buf[256], *r; | |
801 | int is_udp; | |
1c6ed9f3 | 802 | |
63a01ef8 | 803 | p = redir_str; |
b8e8af38 | 804 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
d4ebe193 | 805 | goto fail_syntax; |
b8e8af38 | 806 | } |
d4ebe193 | 807 | if (!strcmp(buf, "tcp") || buf[0] == '\0') { |
63a01ef8 AL |
808 | is_udp = 0; |
809 | } else if (!strcmp(buf, "udp")) { | |
810 | is_udp = 1; | |
811 | } else { | |
d4ebe193 | 812 | goto fail_syntax; |
63a01ef8 AL |
813 | } |
814 | ||
b8e8af38 | 815 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
d4ebe193 | 816 | goto fail_syntax; |
b8e8af38 | 817 | } |
63a01ef8 | 818 | host_port = strtol(buf, &r, 0); |
b8e8af38 | 819 | if (r == buf) { |
d4ebe193 | 820 | goto fail_syntax; |
b8e8af38 | 821 | } |
63a01ef8 | 822 | |
b8e8af38 | 823 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
d4ebe193 | 824 | goto fail_syntax; |
b8e8af38 | 825 | } |
63a01ef8 AL |
826 | if (buf[0] == '\0') { |
827 | pstrcpy(buf, sizeof(buf), "10.0.2.15"); | |
828 | } | |
b8e8af38 | 829 | if (!inet_aton(buf, &guest_addr)) { |
d4ebe193 | 830 | goto fail_syntax; |
b8e8af38 | 831 | } |
63a01ef8 AL |
832 | |
833 | guest_port = strtol(p, &r, 0); | |
b8e8af38 | 834 | if (r == p) { |
d4ebe193 | 835 | goto fail_syntax; |
b8e8af38 | 836 | } |
63a01ef8 AL |
837 | |
838 | if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) { | |
10ae5a7a | 839 | config_error(mon, "could not set up redirection '%s'\n", redir_str); |
63a01ef8 AL |
840 | } |
841 | return; | |
d4ebe193 AL |
842 | |
843 | fail_syntax: | |
10ae5a7a | 844 | config_error(mon, "invalid redirection format '%s'\n", redir_str); |
63a01ef8 AL |
845 | } |
846 | ||
b8e8af38 JK |
847 | void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2) |
848 | { | |
849 | struct slirp_config_str *config; | |
850 | ||
851 | if (!slirp_inited) { | |
852 | if (mon) { | |
853 | monitor_printf(mon, "user mode network stack not in use\n"); | |
854 | } else { | |
855 | config = qemu_malloc(sizeof(*config)); | |
856 | config->str = redir_str; | |
857 | config->next = slirp_redirs; | |
858 | slirp_redirs = config; | |
859 | } | |
860 | return; | |
861 | } | |
862 | ||
863 | if (!strcmp(redir_str, "remove")) { | |
864 | net_slirp_redir_rm(mon, redir_opt2); | |
865 | return; | |
866 | } | |
867 | ||
b8e8af38 JK |
868 | slirp_redirection(mon, redir_str); |
869 | } | |
870 | ||
63a01ef8 AL |
871 | #ifndef _WIN32 |
872 | ||
873 | static char smb_dir[1024]; | |
874 | ||
875 | static void erase_dir(char *dir_name) | |
876 | { | |
877 | DIR *d; | |
878 | struct dirent *de; | |
879 | char filename[1024]; | |
880 | ||
881 | /* erase all the files in the directory */ | |
511d2b14 | 882 | if ((d = opendir(dir_name)) != NULL) { |
63a01ef8 AL |
883 | for(;;) { |
884 | de = readdir(d); | |
885 | if (!de) | |
886 | break; | |
887 | if (strcmp(de->d_name, ".") != 0 && | |
888 | strcmp(de->d_name, "..") != 0) { | |
889 | snprintf(filename, sizeof(filename), "%s/%s", | |
890 | smb_dir, de->d_name); | |
891 | if (unlink(filename) != 0) /* is it a directory? */ | |
892 | erase_dir(filename); | |
893 | } | |
894 | } | |
895 | closedir(d); | |
896 | rmdir(dir_name); | |
897 | } | |
898 | } | |
899 | ||
900 | /* automatic user mode samba server configuration */ | |
901 | static void smb_exit(void) | |
902 | { | |
903 | erase_dir(smb_dir); | |
904 | } | |
905 | ||
b8e8af38 | 906 | static void slirp_smb(const char *exported_dir) |
63a01ef8 AL |
907 | { |
908 | char smb_conf[1024]; | |
909 | char smb_cmdline[1024]; | |
910 | FILE *f; | |
911 | ||
63a01ef8 | 912 | /* XXX: better tmp dir construction */ |
3f4cb3d3 | 913 | snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%ld", (long)getpid()); |
63a01ef8 AL |
914 | if (mkdir(smb_dir, 0700) < 0) { |
915 | fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir); | |
916 | exit(1); | |
917 | } | |
918 | snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf"); | |
919 | ||
920 | f = fopen(smb_conf, "w"); | |
921 | if (!f) { | |
922 | fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf); | |
923 | exit(1); | |
924 | } | |
925 | fprintf(f, | |
926 | "[global]\n" | |
927 | "private dir=%s\n" | |
928 | "smb ports=0\n" | |
929 | "socket address=127.0.0.1\n" | |
930 | "pid directory=%s\n" | |
931 | "lock directory=%s\n" | |
932 | "log file=%s/log.smbd\n" | |
933 | "smb passwd file=%s/smbpasswd\n" | |
934 | "security = share\n" | |
935 | "[qemu]\n" | |
936 | "path=%s\n" | |
937 | "read only=no\n" | |
938 | "guest ok=yes\n", | |
939 | smb_dir, | |
940 | smb_dir, | |
941 | smb_dir, | |
942 | smb_dir, | |
943 | smb_dir, | |
944 | exported_dir | |
945 | ); | |
946 | fclose(f); | |
947 | atexit(smb_exit); | |
948 | ||
949 | snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s", | |
950 | SMBD_COMMAND, smb_conf); | |
951 | ||
952 | slirp_add_exec(0, smb_cmdline, 4, 139); | |
953 | } | |
954 | ||
b8e8af38 JK |
955 | /* automatic user mode samba server configuration */ |
956 | void net_slirp_smb(const char *exported_dir) | |
957 | { | |
958 | if (slirp_smb_export) { | |
959 | fprintf(stderr, "-smb given twice\n"); | |
960 | exit(1); | |
961 | } | |
962 | slirp_smb_export = exported_dir; | |
963 | if (slirp_inited) { | |
964 | slirp_smb(exported_dir); | |
965 | } | |
966 | } | |
967 | ||
63a01ef8 | 968 | #endif /* !defined(_WIN32) */ |
b8e8af38 | 969 | |
376253ec | 970 | void do_info_slirp(Monitor *mon) |
63a01ef8 AL |
971 | { |
972 | slirp_stats(); | |
973 | } | |
974 | ||
8ca9217d AL |
975 | struct VMChannel { |
976 | CharDriverState *hd; | |
977 | int port; | |
511d2b14 | 978 | }; |
8ca9217d AL |
979 | |
980 | static int vmchannel_can_read(void *opaque) | |
981 | { | |
982 | struct VMChannel *vmc = (struct VMChannel*)opaque; | |
983 | return slirp_socket_can_recv(4, vmc->port); | |
984 | } | |
985 | ||
986 | static void vmchannel_read(void *opaque, const uint8_t *buf, int size) | |
987 | { | |
988 | struct VMChannel *vmc = (struct VMChannel*)opaque; | |
989 | slirp_socket_recv(4, vmc->port, buf, size); | |
990 | } | |
991 | ||
63a01ef8 AL |
992 | #endif /* CONFIG_SLIRP */ |
993 | ||
994 | #if !defined(_WIN32) | |
995 | ||
996 | typedef struct TAPState { | |
997 | VLANClientState *vc; | |
998 | int fd; | |
999 | char down_script[1024]; | |
973cbd37 | 1000 | char down_script_arg[128]; |
5b01e886 | 1001 | uint8_t buf[4096]; |
b664e367 | 1002 | unsigned int read_poll : 1; |
1f7babf6 | 1003 | unsigned int write_poll : 1; |
63a01ef8 AL |
1004 | } TAPState; |
1005 | ||
b946a153 AL |
1006 | static int launch_script(const char *setup_script, const char *ifname, int fd); |
1007 | ||
b664e367 MM |
1008 | static int tap_can_send(void *opaque); |
1009 | static void tap_send(void *opaque); | |
1f7babf6 | 1010 | static void tap_writable(void *opaque); |
b664e367 MM |
1011 | |
1012 | static void tap_update_fd_handler(TAPState *s) | |
1013 | { | |
1014 | qemu_set_fd_handler2(s->fd, | |
1015 | s->read_poll ? tap_can_send : NULL, | |
1016 | s->read_poll ? tap_send : NULL, | |
1f7babf6 | 1017 | s->write_poll ? tap_writable : NULL, |
b664e367 MM |
1018 | s); |
1019 | } | |
1020 | ||
1021 | static void tap_read_poll(TAPState *s, int enable) | |
1022 | { | |
1023 | s->read_poll = !!enable; | |
1024 | tap_update_fd_handler(s); | |
1025 | } | |
1026 | ||
1f7babf6 MM |
1027 | static void tap_write_poll(TAPState *s, int enable) |
1028 | { | |
1029 | s->write_poll = !!enable; | |
1030 | tap_update_fd_handler(s); | |
1031 | } | |
1032 | ||
1033 | static void tap_writable(void *opaque) | |
1034 | { | |
1035 | TAPState *s = opaque; | |
1036 | ||
1037 | tap_write_poll(s, 0); | |
1038 | ||
1039 | qemu_flush_queued_packets(s->vc); | |
1040 | } | |
1041 | ||
e3f5ec2b | 1042 | static ssize_t tap_receive_iov(VLANClientState *vc, const struct iovec *iov, |
b535b7b2 AL |
1043 | int iovcnt) |
1044 | { | |
e3f5ec2b | 1045 | TAPState *s = vc->opaque; |
b535b7b2 AL |
1046 | ssize_t len; |
1047 | ||
1048 | do { | |
1049 | len = writev(s->fd, iov, iovcnt); | |
1f7babf6 MM |
1050 | } while (len == -1 && errno == EINTR); |
1051 | ||
1052 | if (len == -1 && errno == EAGAIN) { | |
1053 | tap_write_poll(s, 1); | |
1054 | return 0; | |
1055 | } | |
b535b7b2 AL |
1056 | |
1057 | return len; | |
1058 | } | |
b535b7b2 | 1059 | |
4f1c942b | 1060 | static ssize_t tap_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
63a01ef8 | 1061 | { |
e3f5ec2b | 1062 | TAPState *s = vc->opaque; |
4f1c942b MM |
1063 | ssize_t len; |
1064 | ||
1065 | do { | |
1066 | len = write(s->fd, buf, size); | |
1067 | } while (len == -1 && (errno == EINTR || errno == EAGAIN)); | |
1068 | ||
1069 | return len; | |
63a01ef8 AL |
1070 | } |
1071 | ||
3471b757 MM |
1072 | static int tap_can_send(void *opaque) |
1073 | { | |
1074 | TAPState *s = opaque; | |
1075 | ||
1076 | return qemu_can_send_packet(s->vc); | |
1077 | } | |
1078 | ||
63a01ef8 | 1079 | #ifdef __sun__ |
5a6d8815 MM |
1080 | static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen) |
1081 | { | |
63a01ef8 AL |
1082 | struct strbuf sbuf; |
1083 | int f = 0; | |
5a6d8815 MM |
1084 | |
1085 | sbuf.maxlen = maxlen; | |
3f4cb3d3 | 1086 | sbuf.buf = (char *)buf; |
5a6d8815 MM |
1087 | |
1088 | return getmsg(tapfd, NULL, &sbuf, &f) >= 0 ? sbuf.len : -1; | |
1089 | } | |
63a01ef8 | 1090 | #else |
5a6d8815 MM |
1091 | static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen) |
1092 | { | |
1093 | return read(tapfd, buf, maxlen); | |
1094 | } | |
63a01ef8 | 1095 | #endif |
5a6d8815 | 1096 | |
783527a9 | 1097 | static void tap_send_completed(VLANClientState *vc, ssize_t len) |
e19eb224 MM |
1098 | { |
1099 | TAPState *s = vc->opaque; | |
b664e367 | 1100 | tap_read_poll(s, 1); |
e19eb224 MM |
1101 | } |
1102 | ||
5a6d8815 MM |
1103 | static void tap_send(void *opaque) |
1104 | { | |
1105 | TAPState *s = opaque; | |
5a6d8815 MM |
1106 | int size; |
1107 | ||
e19eb224 MM |
1108 | do { |
1109 | size = tap_read_packet(s->fd, s->buf, sizeof(s->buf)); | |
1110 | if (size <= 0) { | |
1111 | break; | |
1112 | } | |
1113 | ||
1114 | size = qemu_send_packet_async(s->vc, s->buf, size, tap_send_completed); | |
1115 | if (size == 0) { | |
b664e367 | 1116 | tap_read_poll(s, 0); |
e19eb224 MM |
1117 | } |
1118 | } while (size > 0); | |
63a01ef8 AL |
1119 | } |
1120 | ||
0df0ff6d MM |
1121 | static void tap_set_sndbuf(TAPState *s, int sndbuf, Monitor *mon) |
1122 | { | |
1123 | #ifdef TUNSETSNDBUF | |
1124 | if (ioctl(s->fd, TUNSETSNDBUF, &sndbuf) == -1) { | |
1125 | config_error(mon, "TUNSETSNDBUF ioctl failed: %s\n", | |
1126 | strerror(errno)); | |
1127 | } | |
1128 | #else | |
1129 | config_error(mon, "No '-net tap,sndbuf=<nbytes>' support available\n"); | |
1130 | #endif | |
1131 | } | |
1132 | ||
b946a153 AL |
1133 | static void tap_cleanup(VLANClientState *vc) |
1134 | { | |
1135 | TAPState *s = vc->opaque; | |
1136 | ||
b9adce2c MM |
1137 | qemu_purge_queued_packets(vc); |
1138 | ||
b946a153 AL |
1139 | if (s->down_script[0]) |
1140 | launch_script(s->down_script, s->down_script_arg, s->fd); | |
1141 | ||
b664e367 | 1142 | tap_read_poll(s, 0); |
1f7babf6 | 1143 | tap_write_poll(s, 0); |
b946a153 AL |
1144 | close(s->fd); |
1145 | qemu_free(s); | |
1146 | } | |
1147 | ||
63a01ef8 AL |
1148 | /* fd support */ |
1149 | ||
7a9f6e4a AL |
1150 | static TAPState *net_tap_fd_init(VLANState *vlan, |
1151 | const char *model, | |
1152 | const char *name, | |
1153 | int fd) | |
63a01ef8 AL |
1154 | { |
1155 | TAPState *s; | |
1156 | ||
1157 | s = qemu_mallocz(sizeof(TAPState)); | |
63a01ef8 | 1158 | s->fd = fd; |
463af534 MM |
1159 | s->vc = qemu_new_vlan_client(vlan, model, name, NULL, tap_receive, |
1160 | tap_receive_iov, tap_cleanup, s); | |
b664e367 | 1161 | tap_read_poll(s, 1); |
7cb7434b | 1162 | snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd); |
63a01ef8 AL |
1163 | return s; |
1164 | } | |
1165 | ||
179a2c19 | 1166 | #if defined (HOST_BSD) || defined (__FreeBSD_kernel__) |
63a01ef8 AL |
1167 | static int tap_open(char *ifname, int ifname_size) |
1168 | { | |
1169 | int fd; | |
1170 | char *dev; | |
1171 | struct stat s; | |
1172 | ||
1173 | TFR(fd = open("/dev/tap", O_RDWR)); | |
1174 | if (fd < 0) { | |
1175 | fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n"); | |
1176 | return -1; | |
1177 | } | |
1178 | ||
1179 | fstat(fd, &s); | |
1180 | dev = devname(s.st_rdev, S_IFCHR); | |
1181 | pstrcpy(ifname, ifname_size, dev); | |
1182 | ||
1183 | fcntl(fd, F_SETFL, O_NONBLOCK); | |
1184 | return fd; | |
1185 | } | |
1186 | #elif defined(__sun__) | |
1187 | #define TUNNEWPPA (('T'<<16) | 0x0001) | |
1188 | /* | |
1189 | * Allocate TAP device, returns opened fd. | |
1190 | * Stores dev name in the first arg(must be large enough). | |
1191 | */ | |
3f4cb3d3 | 1192 | static int tap_alloc(char *dev, size_t dev_size) |
63a01ef8 AL |
1193 | { |
1194 | int tap_fd, if_fd, ppa = -1; | |
1195 | static int ip_fd = 0; | |
1196 | char *ptr; | |
1197 | ||
1198 | static int arp_fd = 0; | |
1199 | int ip_muxid, arp_muxid; | |
1200 | struct strioctl strioc_if, strioc_ppa; | |
1201 | int link_type = I_PLINK;; | |
1202 | struct lifreq ifr; | |
1203 | char actual_name[32] = ""; | |
1204 | ||
1205 | memset(&ifr, 0x0, sizeof(ifr)); | |
1206 | ||
1207 | if( *dev ){ | |
1208 | ptr = dev; | |
47398b9c | 1209 | while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++; |
63a01ef8 AL |
1210 | ppa = atoi(ptr); |
1211 | } | |
1212 | ||
1213 | /* Check if IP device was opened */ | |
1214 | if( ip_fd ) | |
1215 | close(ip_fd); | |
1216 | ||
1217 | TFR(ip_fd = open("/dev/udp", O_RDWR, 0)); | |
1218 | if (ip_fd < 0) { | |
1219 | syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)"); | |
1220 | return -1; | |
1221 | } | |
1222 | ||
1223 | TFR(tap_fd = open("/dev/tap", O_RDWR, 0)); | |
1224 | if (tap_fd < 0) { | |
1225 | syslog(LOG_ERR, "Can't open /dev/tap"); | |
1226 | return -1; | |
1227 | } | |
1228 | ||
1229 | /* Assign a new PPA and get its unit number. */ | |
1230 | strioc_ppa.ic_cmd = TUNNEWPPA; | |
1231 | strioc_ppa.ic_timout = 0; | |
1232 | strioc_ppa.ic_len = sizeof(ppa); | |
1233 | strioc_ppa.ic_dp = (char *)&ppa; | |
1234 | if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0) | |
1235 | syslog (LOG_ERR, "Can't assign new interface"); | |
1236 | ||
1237 | TFR(if_fd = open("/dev/tap", O_RDWR, 0)); | |
1238 | if (if_fd < 0) { | |
1239 | syslog(LOG_ERR, "Can't open /dev/tap (2)"); | |
1240 | return -1; | |
1241 | } | |
1242 | if(ioctl(if_fd, I_PUSH, "ip") < 0){ | |
1243 | syslog(LOG_ERR, "Can't push IP module"); | |
1244 | return -1; | |
1245 | } | |
1246 | ||
1247 | if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0) | |
1248 | syslog(LOG_ERR, "Can't get flags\n"); | |
1249 | ||
1250 | snprintf (actual_name, 32, "tap%d", ppa); | |
1251 | pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name); | |
1252 | ||
1253 | ifr.lifr_ppa = ppa; | |
1254 | /* Assign ppa according to the unit number returned by tun device */ | |
1255 | ||
1256 | if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0) | |
1257 | syslog (LOG_ERR, "Can't set PPA %d", ppa); | |
1258 | if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0) | |
1259 | syslog (LOG_ERR, "Can't get flags\n"); | |
1260 | /* Push arp module to if_fd */ | |
1261 | if (ioctl (if_fd, I_PUSH, "arp") < 0) | |
1262 | syslog (LOG_ERR, "Can't push ARP module (2)"); | |
1263 | ||
1264 | /* Push arp module to ip_fd */ | |
1265 | if (ioctl (ip_fd, I_POP, NULL) < 0) | |
1266 | syslog (LOG_ERR, "I_POP failed\n"); | |
1267 | if (ioctl (ip_fd, I_PUSH, "arp") < 0) | |
1268 | syslog (LOG_ERR, "Can't push ARP module (3)\n"); | |
1269 | /* Open arp_fd */ | |
1270 | TFR(arp_fd = open ("/dev/tap", O_RDWR, 0)); | |
1271 | if (arp_fd < 0) | |
1272 | syslog (LOG_ERR, "Can't open %s\n", "/dev/tap"); | |
1273 | ||
1274 | /* Set ifname to arp */ | |
1275 | strioc_if.ic_cmd = SIOCSLIFNAME; | |
1276 | strioc_if.ic_timout = 0; | |
1277 | strioc_if.ic_len = sizeof(ifr); | |
1278 | strioc_if.ic_dp = (char *)𝔦 | |
1279 | if (ioctl(arp_fd, I_STR, &strioc_if) < 0){ | |
1280 | syslog (LOG_ERR, "Can't set ifname to arp\n"); | |
1281 | } | |
1282 | ||
1283 | if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){ | |
1284 | syslog(LOG_ERR, "Can't link TAP device to IP"); | |
1285 | return -1; | |
1286 | } | |
1287 | ||
1288 | if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0) | |
1289 | syslog (LOG_ERR, "Can't link TAP device to ARP"); | |
1290 | ||
1291 | close (if_fd); | |
1292 | ||
1293 | memset(&ifr, 0x0, sizeof(ifr)); | |
1294 | pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name); | |
1295 | ifr.lifr_ip_muxid = ip_muxid; | |
1296 | ifr.lifr_arp_muxid = arp_muxid; | |
1297 | ||
1298 | if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0) | |
1299 | { | |
1300 | ioctl (ip_fd, I_PUNLINK , arp_muxid); | |
1301 | ioctl (ip_fd, I_PUNLINK, ip_muxid); | |
1302 | syslog (LOG_ERR, "Can't set multiplexor id"); | |
1303 | } | |
1304 | ||
1305 | snprintf(dev, dev_size, "tap%d", ppa); | |
1306 | return tap_fd; | |
1307 | } | |
1308 | ||
1309 | static int tap_open(char *ifname, int ifname_size) | |
1310 | { | |
1311 | char dev[10]=""; | |
1312 | int fd; | |
1313 | if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){ | |
1314 | fprintf(stderr, "Cannot allocate TAP device\n"); | |
1315 | return -1; | |
1316 | } | |
1317 | pstrcpy(ifname, ifname_size, dev); | |
1318 | fcntl(fd, F_SETFL, O_NONBLOCK); | |
1319 | return fd; | |
1320 | } | |
b29fe3ed | 1321 | #elif defined (_AIX) |
1322 | static int tap_open(char *ifname, int ifname_size) | |
1323 | { | |
1324 | fprintf (stderr, "no tap on AIX\n"); | |
1325 | return -1; | |
1326 | } | |
63a01ef8 AL |
1327 | #else |
1328 | static int tap_open(char *ifname, int ifname_size) | |
1329 | { | |
1330 | struct ifreq ifr; | |
1331 | int fd, ret; | |
1332 | ||
1333 | TFR(fd = open("/dev/net/tun", O_RDWR)); | |
1334 | if (fd < 0) { | |
1335 | fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n"); | |
1336 | return -1; | |
1337 | } | |
1338 | memset(&ifr, 0, sizeof(ifr)); | |
1339 | ifr.ifr_flags = IFF_TAP | IFF_NO_PI; | |
1340 | if (ifname[0] != '\0') | |
1341 | pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname); | |
1342 | else | |
1343 | pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d"); | |
1344 | ret = ioctl(fd, TUNSETIFF, (void *) &ifr); | |
1345 | if (ret != 0) { | |
1346 | fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n"); | |
1347 | close(fd); | |
1348 | return -1; | |
1349 | } | |
1350 | pstrcpy(ifname, ifname_size, ifr.ifr_name); | |
1351 | fcntl(fd, F_SETFL, O_NONBLOCK); | |
1352 | return fd; | |
1353 | } | |
1354 | #endif | |
1355 | ||
1356 | static int launch_script(const char *setup_script, const char *ifname, int fd) | |
1357 | { | |
7c3370d4 | 1358 | sigset_t oldmask, mask; |
63a01ef8 AL |
1359 | int pid, status; |
1360 | char *args[3]; | |
1361 | char **parg; | |
1362 | ||
7c3370d4 JK |
1363 | sigemptyset(&mask); |
1364 | sigaddset(&mask, SIGCHLD); | |
1365 | sigprocmask(SIG_BLOCK, &mask, &oldmask); | |
1366 | ||
1367 | /* try to launch network script */ | |
1368 | pid = fork(); | |
1369 | if (pid == 0) { | |
1370 | int open_max = sysconf(_SC_OPEN_MAX), i; | |
1371 | ||
1372 | for (i = 0; i < open_max; i++) { | |
1373 | if (i != STDIN_FILENO && | |
1374 | i != STDOUT_FILENO && | |
1375 | i != STDERR_FILENO && | |
1376 | i != fd) { | |
1377 | close(i); | |
63a01ef8 AL |
1378 | } |
1379 | } | |
7c3370d4 JK |
1380 | parg = args; |
1381 | *parg++ = (char *)setup_script; | |
1382 | *parg++ = (char *)ifname; | |
1383 | *parg++ = NULL; | |
1384 | execv(setup_script, args); | |
1385 | _exit(1); | |
1386 | } else if (pid > 0) { | |
1387 | while (waitpid(pid, &status, 0) != pid) { | |
1388 | /* loop */ | |
1389 | } | |
1390 | sigprocmask(SIG_SETMASK, &oldmask, NULL); | |
1391 | ||
1392 | if (WIFEXITED(status) && WEXITSTATUS(status) == 0) { | |
1393 | return 0; | |
1394 | } | |
1395 | } | |
1396 | fprintf(stderr, "%s: could not launch network script\n", setup_script); | |
1397 | return -1; | |
63a01ef8 AL |
1398 | } |
1399 | ||
4a77b25e MM |
1400 | static TAPState *net_tap_init(VLANState *vlan, const char *model, |
1401 | const char *name, const char *ifname1, | |
1402 | const char *setup_script, const char *down_script) | |
63a01ef8 AL |
1403 | { |
1404 | TAPState *s; | |
1405 | int fd; | |
1406 | char ifname[128]; | |
1407 | ||
1408 | if (ifname1 != NULL) | |
1409 | pstrcpy(ifname, sizeof(ifname), ifname1); | |
1410 | else | |
1411 | ifname[0] = '\0'; | |
1412 | TFR(fd = tap_open(ifname, sizeof(ifname))); | |
1413 | if (fd < 0) | |
4a77b25e | 1414 | return NULL; |
63a01ef8 AL |
1415 | |
1416 | if (!setup_script || !strcmp(setup_script, "no")) | |
1417 | setup_script = ""; | |
4a77b25e MM |
1418 | if (setup_script[0] != '\0' && |
1419 | launch_script(setup_script, ifname, fd)) { | |
1420 | return NULL; | |
63a01ef8 | 1421 | } |
7a9f6e4a | 1422 | s = net_tap_fd_init(vlan, model, name, fd); |
63a01ef8 | 1423 | snprintf(s->vc->info_str, sizeof(s->vc->info_str), |
7cb7434b AL |
1424 | "ifname=%s,script=%s,downscript=%s", |
1425 | ifname, setup_script, down_script); | |
973cbd37 | 1426 | if (down_script && strcmp(down_script, "no")) { |
63a01ef8 | 1427 | snprintf(s->down_script, sizeof(s->down_script), "%s", down_script); |
973cbd37 AL |
1428 | snprintf(s->down_script_arg, sizeof(s->down_script_arg), "%s", ifname); |
1429 | } | |
4a77b25e | 1430 | return s; |
63a01ef8 AL |
1431 | } |
1432 | ||
1433 | #endif /* !_WIN32 */ | |
1434 | ||
1435 | #if defined(CONFIG_VDE) | |
1436 | typedef struct VDEState { | |
1437 | VLANClientState *vc; | |
1438 | VDECONN *vde; | |
1439 | } VDEState; | |
1440 | ||
1441 | static void vde_to_qemu(void *opaque) | |
1442 | { | |
1443 | VDEState *s = opaque; | |
1444 | uint8_t buf[4096]; | |
1445 | int size; | |
1446 | ||
cc63bb0f | 1447 | size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0); |
63a01ef8 AL |
1448 | if (size > 0) { |
1449 | qemu_send_packet(s->vc, buf, size); | |
1450 | } | |
1451 | } | |
1452 | ||
4f1c942b | 1453 | static ssize_t vde_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
63a01ef8 | 1454 | { |
e3f5ec2b | 1455 | VDEState *s = vc->opaque; |
068daedd | 1456 | ssize_t ret; |
4f1c942b MM |
1457 | |
1458 | do { | |
1459 | ret = vde_send(s->vde, (const char *)buf, size, 0); | |
1460 | } while (ret < 0 && errno == EINTR); | |
1461 | ||
1462 | return ret; | |
63a01ef8 AL |
1463 | } |
1464 | ||
b946a153 AL |
1465 | static void vde_cleanup(VLANClientState *vc) |
1466 | { | |
1467 | VDEState *s = vc->opaque; | |
1468 | qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL); | |
1469 | vde_close(s->vde); | |
1470 | qemu_free(s); | |
1471 | } | |
1472 | ||
7a9f6e4a AL |
1473 | static int net_vde_init(VLANState *vlan, const char *model, |
1474 | const char *name, const char *sock, | |
bf38c1a0 | 1475 | int port, const char *group, int mode) |
63a01ef8 AL |
1476 | { |
1477 | VDEState *s; | |
1478 | char *init_group = strlen(group) ? (char *)group : NULL; | |
1479 | char *init_sock = strlen(sock) ? (char *)sock : NULL; | |
1480 | ||
1481 | struct vde_open_args args = { | |
1482 | .port = port, | |
1483 | .group = init_group, | |
1484 | .mode = mode, | |
1485 | }; | |
1486 | ||
1487 | s = qemu_mallocz(sizeof(VDEState)); | |
cc63bb0f | 1488 | s->vde = vde_open(init_sock, (char *)"QEMU", &args); |
63a01ef8 AL |
1489 | if (!s->vde){ |
1490 | free(s); | |
1491 | return -1; | |
1492 | } | |
e3f5ec2b | 1493 | s->vc = qemu_new_vlan_client(vlan, model, name, NULL, vde_receive, |
b946a153 | 1494 | NULL, vde_cleanup, s); |
63a01ef8 | 1495 | qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s); |
7cb7434b | 1496 | snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d", |
63a01ef8 AL |
1497 | sock, vde_datafd(s->vde)); |
1498 | return 0; | |
1499 | } | |
1500 | #endif | |
1501 | ||
1502 | /* network connection */ | |
1503 | typedef struct NetSocketState { | |
1504 | VLANClientState *vc; | |
1505 | int fd; | |
1506 | int state; /* 0 = getting length, 1 = getting data */ | |
abcd2baa AL |
1507 | unsigned int index; |
1508 | unsigned int packet_len; | |
63a01ef8 AL |
1509 | uint8_t buf[4096]; |
1510 | struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */ | |
1511 | } NetSocketState; | |
1512 | ||
1513 | typedef struct NetSocketListenState { | |
1514 | VLANState *vlan; | |
bf38c1a0 | 1515 | char *model; |
7a9f6e4a | 1516 | char *name; |
63a01ef8 AL |
1517 | int fd; |
1518 | } NetSocketListenState; | |
1519 | ||
1520 | /* XXX: we consider we can send the whole packet without blocking */ | |
4f1c942b | 1521 | static ssize_t net_socket_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
63a01ef8 | 1522 | { |
e3f5ec2b | 1523 | NetSocketState *s = vc->opaque; |
63a01ef8 AL |
1524 | uint32_t len; |
1525 | len = htonl(size); | |
1526 | ||
1527 | send_all(s->fd, (const uint8_t *)&len, sizeof(len)); | |
4f1c942b | 1528 | return send_all(s->fd, buf, size); |
63a01ef8 AL |
1529 | } |
1530 | ||
4f1c942b | 1531 | static ssize_t net_socket_receive_dgram(VLANClientState *vc, const uint8_t *buf, size_t size) |
63a01ef8 | 1532 | { |
e3f5ec2b | 1533 | NetSocketState *s = vc->opaque; |
4f1c942b | 1534 | |
70503264 | 1535 | return sendto(s->fd, (const void *)buf, size, 0, |
4f1c942b | 1536 | (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst)); |
63a01ef8 AL |
1537 | } |
1538 | ||
1539 | static void net_socket_send(void *opaque) | |
1540 | { | |
1541 | NetSocketState *s = opaque; | |
abcd2baa AL |
1542 | int size, err; |
1543 | unsigned l; | |
63a01ef8 AL |
1544 | uint8_t buf1[4096]; |
1545 | const uint8_t *buf; | |
1546 | ||
c5b76b38 | 1547 | size = recv(s->fd, (void *)buf1, sizeof(buf1), 0); |
63a01ef8 AL |
1548 | if (size < 0) { |
1549 | err = socket_error(); | |
1550 | if (err != EWOULDBLOCK) | |
1551 | goto eoc; | |
1552 | } else if (size == 0) { | |
1553 | /* end of connection */ | |
1554 | eoc: | |
1555 | qemu_set_fd_handler(s->fd, NULL, NULL, NULL); | |
1556 | closesocket(s->fd); | |
1557 | return; | |
1558 | } | |
1559 | buf = buf1; | |
1560 | while (size > 0) { | |
1561 | /* reassemble a packet from the network */ | |
1562 | switch(s->state) { | |
1563 | case 0: | |
1564 | l = 4 - s->index; | |
1565 | if (l > size) | |
1566 | l = size; | |
1567 | memcpy(s->buf + s->index, buf, l); | |
1568 | buf += l; | |
1569 | size -= l; | |
1570 | s->index += l; | |
1571 | if (s->index == 4) { | |
1572 | /* got length */ | |
1573 | s->packet_len = ntohl(*(uint32_t *)s->buf); | |
1574 | s->index = 0; | |
1575 | s->state = 1; | |
1576 | } | |
1577 | break; | |
1578 | case 1: | |
1579 | l = s->packet_len - s->index; | |
1580 | if (l > size) | |
1581 | l = size; | |
abcd2baa AL |
1582 | if (s->index + l <= sizeof(s->buf)) { |
1583 | memcpy(s->buf + s->index, buf, l); | |
1584 | } else { | |
1585 | fprintf(stderr, "serious error: oversized packet received," | |
1586 | "connection terminated.\n"); | |
1587 | s->state = 0; | |
1588 | goto eoc; | |
1589 | } | |
1590 | ||
63a01ef8 AL |
1591 | s->index += l; |
1592 | buf += l; | |
1593 | size -= l; | |
1594 | if (s->index >= s->packet_len) { | |
1595 | qemu_send_packet(s->vc, s->buf, s->packet_len); | |
1596 | s->index = 0; | |
1597 | s->state = 0; | |
1598 | } | |
1599 | break; | |
1600 | } | |
1601 | } | |
1602 | } | |
1603 | ||
1604 | static void net_socket_send_dgram(void *opaque) | |
1605 | { | |
1606 | NetSocketState *s = opaque; | |
1607 | int size; | |
1608 | ||
c5b76b38 | 1609 | size = recv(s->fd, (void *)s->buf, sizeof(s->buf), 0); |
63a01ef8 AL |
1610 | if (size < 0) |
1611 | return; | |
1612 | if (size == 0) { | |
1613 | /* end of connection */ | |
1614 | qemu_set_fd_handler(s->fd, NULL, NULL, NULL); | |
1615 | return; | |
1616 | } | |
1617 | qemu_send_packet(s->vc, s->buf, size); | |
1618 | } | |
1619 | ||
1620 | static int net_socket_mcast_create(struct sockaddr_in *mcastaddr) | |
1621 | { | |
1622 | struct ip_mreq imr; | |
1623 | int fd; | |
1624 | int val, ret; | |
1625 | if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) { | |
1626 | fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n", | |
1627 | inet_ntoa(mcastaddr->sin_addr), | |
1628 | (int)ntohl(mcastaddr->sin_addr.s_addr)); | |
1629 | return -1; | |
1630 | ||
1631 | } | |
1632 | fd = socket(PF_INET, SOCK_DGRAM, 0); | |
1633 | if (fd < 0) { | |
1634 | perror("socket(PF_INET, SOCK_DGRAM)"); | |
1635 | return -1; | |
1636 | } | |
1637 | ||
1638 | val = 1; | |
1639 | ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, | |
1640 | (const char *)&val, sizeof(val)); | |
1641 | if (ret < 0) { | |
1642 | perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)"); | |
1643 | goto fail; | |
1644 | } | |
1645 | ||
1646 | ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr)); | |
1647 | if (ret < 0) { | |
1648 | perror("bind"); | |
1649 | goto fail; | |
1650 | } | |
1651 | ||
1652 | /* Add host to multicast group */ | |
1653 | imr.imr_multiaddr = mcastaddr->sin_addr; | |
1654 | imr.imr_interface.s_addr = htonl(INADDR_ANY); | |
1655 | ||
1656 | ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, | |
1657 | (const char *)&imr, sizeof(struct ip_mreq)); | |
1658 | if (ret < 0) { | |
1659 | perror("setsockopt(IP_ADD_MEMBERSHIP)"); | |
1660 | goto fail; | |
1661 | } | |
1662 | ||
1663 | /* Force mcast msgs to loopback (eg. several QEMUs in same host */ | |
1664 | val = 1; | |
1665 | ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP, | |
1666 | (const char *)&val, sizeof(val)); | |
1667 | if (ret < 0) { | |
1668 | perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)"); | |
1669 | goto fail; | |
1670 | } | |
1671 | ||
1672 | socket_set_nonblock(fd); | |
1673 | return fd; | |
1674 | fail: | |
1675 | if (fd >= 0) | |
1676 | closesocket(fd); | |
1677 | return -1; | |
1678 | } | |
1679 | ||
b946a153 AL |
1680 | static void net_socket_cleanup(VLANClientState *vc) |
1681 | { | |
1682 | NetSocketState *s = vc->opaque; | |
1683 | qemu_set_fd_handler(s->fd, NULL, NULL, NULL); | |
1684 | close(s->fd); | |
1685 | qemu_free(s); | |
1686 | } | |
1687 | ||
7a9f6e4a AL |
1688 | static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan, |
1689 | const char *model, | |
1690 | const char *name, | |
bf38c1a0 | 1691 | int fd, int is_connected) |
63a01ef8 AL |
1692 | { |
1693 | struct sockaddr_in saddr; | |
1694 | int newfd; | |
1695 | socklen_t saddr_len; | |
1696 | NetSocketState *s; | |
1697 | ||
1698 | /* fd passed: multicast: "learn" dgram_dst address from bound address and save it | |
1699 | * Because this may be "shared" socket from a "master" process, datagrams would be recv() | |
1700 | * by ONLY ONE process: we must "clone" this dgram socket --jjo | |
1701 | */ | |
1702 | ||
1703 | if (is_connected) { | |
1704 | if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) { | |
1705 | /* must be bound */ | |
1706 | if (saddr.sin_addr.s_addr==0) { | |
1707 | fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n", | |
1708 | fd); | |
1709 | return NULL; | |
1710 | } | |
1711 | /* clone dgram socket */ | |
1712 | newfd = net_socket_mcast_create(&saddr); | |
1713 | if (newfd < 0) { | |
1714 | /* error already reported by net_socket_mcast_create() */ | |
1715 | close(fd); | |
1716 | return NULL; | |
1717 | } | |
1718 | /* clone newfd to fd, close newfd */ | |
1719 | dup2(newfd, fd); | |
1720 | close(newfd); | |
1721 | ||
1722 | } else { | |
1723 | fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n", | |
1724 | fd, strerror(errno)); | |
1725 | return NULL; | |
1726 | } | |
1727 | } | |
1728 | ||
1729 | s = qemu_mallocz(sizeof(NetSocketState)); | |
63a01ef8 AL |
1730 | s->fd = fd; |
1731 | ||
463af534 | 1732 | s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive_dgram, |
b946a153 | 1733 | NULL, net_socket_cleanup, s); |
63a01ef8 AL |
1734 | qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s); |
1735 | ||
1736 | /* mcast: save bound address as dst */ | |
1737 | if (is_connected) s->dgram_dst=saddr; | |
1738 | ||
1739 | snprintf(s->vc->info_str, sizeof(s->vc->info_str), | |
1740 | "socket: fd=%d (%s mcast=%s:%d)", | |
1741 | fd, is_connected? "cloned" : "", | |
1742 | inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); | |
1743 | return s; | |
1744 | } | |
1745 | ||
1746 | static void net_socket_connect(void *opaque) | |
1747 | { | |
1748 | NetSocketState *s = opaque; | |
1749 | qemu_set_fd_handler(s->fd, net_socket_send, NULL, s); | |
1750 | } | |
1751 | ||
7a9f6e4a AL |
1752 | static NetSocketState *net_socket_fd_init_stream(VLANState *vlan, |
1753 | const char *model, | |
1754 | const char *name, | |
bf38c1a0 | 1755 | int fd, int is_connected) |
63a01ef8 AL |
1756 | { |
1757 | NetSocketState *s; | |
1758 | s = qemu_mallocz(sizeof(NetSocketState)); | |
63a01ef8 | 1759 | s->fd = fd; |
463af534 | 1760 | s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive, |
b946a153 | 1761 | NULL, net_socket_cleanup, s); |
63a01ef8 AL |
1762 | snprintf(s->vc->info_str, sizeof(s->vc->info_str), |
1763 | "socket: fd=%d", fd); | |
1764 | if (is_connected) { | |
1765 | net_socket_connect(s); | |
1766 | } else { | |
1767 | qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s); | |
1768 | } | |
1769 | return s; | |
1770 | } | |
1771 | ||
7a9f6e4a AL |
1772 | static NetSocketState *net_socket_fd_init(VLANState *vlan, |
1773 | const char *model, const char *name, | |
bf38c1a0 | 1774 | int fd, int is_connected) |
63a01ef8 AL |
1775 | { |
1776 | int so_type=-1, optlen=sizeof(so_type); | |
1777 | ||
1778 | if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type, | |
1779 | (socklen_t *)&optlen)< 0) { | |
1780 | fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd); | |
1781 | return NULL; | |
1782 | } | |
1783 | switch(so_type) { | |
1784 | case SOCK_DGRAM: | |
7a9f6e4a | 1785 | return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected); |
63a01ef8 | 1786 | case SOCK_STREAM: |
7a9f6e4a | 1787 | return net_socket_fd_init_stream(vlan, model, name, fd, is_connected); |
63a01ef8 AL |
1788 | default: |
1789 | /* who knows ... this could be a eg. a pty, do warn and continue as stream */ | |
1790 | fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd); | |
7a9f6e4a | 1791 | return net_socket_fd_init_stream(vlan, model, name, fd, is_connected); |
63a01ef8 AL |
1792 | } |
1793 | return NULL; | |
1794 | } | |
1795 | ||
1796 | static void net_socket_accept(void *opaque) | |
1797 | { | |
1798 | NetSocketListenState *s = opaque; | |
1799 | NetSocketState *s1; | |
1800 | struct sockaddr_in saddr; | |
1801 | socklen_t len; | |
1802 | int fd; | |
1803 | ||
1804 | for(;;) { | |
1805 | len = sizeof(saddr); | |
1806 | fd = accept(s->fd, (struct sockaddr *)&saddr, &len); | |
1807 | if (fd < 0 && errno != EINTR) { | |
1808 | return; | |
1809 | } else if (fd >= 0) { | |
1810 | break; | |
1811 | } | |
1812 | } | |
7a9f6e4a | 1813 | s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1); |
63a01ef8 AL |
1814 | if (!s1) { |
1815 | closesocket(fd); | |
1816 | } else { | |
1817 | snprintf(s1->vc->info_str, sizeof(s1->vc->info_str), | |
1818 | "socket: connection from %s:%d", | |
1819 | inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); | |
1820 | } | |
1821 | } | |
1822 | ||
7a9f6e4a AL |
1823 | static int net_socket_listen_init(VLANState *vlan, |
1824 | const char *model, | |
1825 | const char *name, | |
bf38c1a0 | 1826 | const char *host_str) |
63a01ef8 AL |
1827 | { |
1828 | NetSocketListenState *s; | |
1829 | int fd, val, ret; | |
1830 | struct sockaddr_in saddr; | |
1831 | ||
1832 | if (parse_host_port(&saddr, host_str) < 0) | |
1833 | return -1; | |
1834 | ||
1835 | s = qemu_mallocz(sizeof(NetSocketListenState)); | |
63a01ef8 AL |
1836 | |
1837 | fd = socket(PF_INET, SOCK_STREAM, 0); | |
1838 | if (fd < 0) { | |
1839 | perror("socket"); | |
1840 | return -1; | |
1841 | } | |
1842 | socket_set_nonblock(fd); | |
1843 | ||
1844 | /* allow fast reuse */ | |
1845 | val = 1; | |
1846 | setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val)); | |
1847 | ||
1848 | ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)); | |
1849 | if (ret < 0) { | |
1850 | perror("bind"); | |
1851 | return -1; | |
1852 | } | |
1853 | ret = listen(fd, 0); | |
1854 | if (ret < 0) { | |
1855 | perror("listen"); | |
1856 | return -1; | |
1857 | } | |
1858 | s->vlan = vlan; | |
bf38c1a0 | 1859 | s->model = strdup(model); |
ea053add | 1860 | s->name = name ? strdup(name) : NULL; |
63a01ef8 AL |
1861 | s->fd = fd; |
1862 | qemu_set_fd_handler(fd, net_socket_accept, NULL, s); | |
1863 | return 0; | |
1864 | } | |
1865 | ||
7a9f6e4a AL |
1866 | static int net_socket_connect_init(VLANState *vlan, |
1867 | const char *model, | |
1868 | const char *name, | |
bf38c1a0 | 1869 | const char *host_str) |
63a01ef8 AL |
1870 | { |
1871 | NetSocketState *s; | |
1872 | int fd, connected, ret, err; | |
1873 | struct sockaddr_in saddr; | |
1874 | ||
1875 | if (parse_host_port(&saddr, host_str) < 0) | |
1876 | return -1; | |
1877 | ||
1878 | fd = socket(PF_INET, SOCK_STREAM, 0); | |
1879 | if (fd < 0) { | |
1880 | perror("socket"); | |
1881 | return -1; | |
1882 | } | |
1883 | socket_set_nonblock(fd); | |
1884 | ||
1885 | connected = 0; | |
1886 | for(;;) { | |
1887 | ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr)); | |
1888 | if (ret < 0) { | |
1889 | err = socket_error(); | |
1890 | if (err == EINTR || err == EWOULDBLOCK) { | |
1891 | } else if (err == EINPROGRESS) { | |
1892 | break; | |
1893 | #ifdef _WIN32 | |
1894 | } else if (err == WSAEALREADY) { | |
1895 | break; | |
1896 | #endif | |
1897 | } else { | |
1898 | perror("connect"); | |
1899 | closesocket(fd); | |
1900 | return -1; | |
1901 | } | |
1902 | } else { | |
1903 | connected = 1; | |
1904 | break; | |
1905 | } | |
1906 | } | |
7a9f6e4a | 1907 | s = net_socket_fd_init(vlan, model, name, fd, connected); |
63a01ef8 AL |
1908 | if (!s) |
1909 | return -1; | |
1910 | snprintf(s->vc->info_str, sizeof(s->vc->info_str), | |
1911 | "socket: connect to %s:%d", | |
1912 | inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); | |
1913 | return 0; | |
1914 | } | |
1915 | ||
7a9f6e4a AL |
1916 | static int net_socket_mcast_init(VLANState *vlan, |
1917 | const char *model, | |
1918 | const char *name, | |
bf38c1a0 | 1919 | const char *host_str) |
63a01ef8 AL |
1920 | { |
1921 | NetSocketState *s; | |
1922 | int fd; | |
1923 | struct sockaddr_in saddr; | |
1924 | ||
1925 | if (parse_host_port(&saddr, host_str) < 0) | |
1926 | return -1; | |
1927 | ||
1928 | ||
1929 | fd = net_socket_mcast_create(&saddr); | |
1930 | if (fd < 0) | |
1931 | return -1; | |
1932 | ||
7a9f6e4a | 1933 | s = net_socket_fd_init(vlan, model, name, fd, 0); |
63a01ef8 AL |
1934 | if (!s) |
1935 | return -1; | |
1936 | ||
1937 | s->dgram_dst = saddr; | |
1938 | ||
1939 | snprintf(s->vc->info_str, sizeof(s->vc->info_str), | |
1940 | "socket: mcast=%s:%d", | |
1941 | inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); | |
1942 | return 0; | |
1943 | ||
1944 | } | |
1945 | ||
bb9ea79e AL |
1946 | typedef struct DumpState { |
1947 | VLANClientState *pcap_vc; | |
1948 | int fd; | |
1949 | int pcap_caplen; | |
1950 | } DumpState; | |
1951 | ||
1952 | #define PCAP_MAGIC 0xa1b2c3d4 | |
1953 | ||
1954 | struct pcap_file_hdr { | |
1955 | uint32_t magic; | |
1956 | uint16_t version_major; | |
1957 | uint16_t version_minor; | |
1958 | int32_t thiszone; | |
1959 | uint32_t sigfigs; | |
1960 | uint32_t snaplen; | |
1961 | uint32_t linktype; | |
1962 | }; | |
1963 | ||
1964 | struct pcap_sf_pkthdr { | |
1965 | struct { | |
1966 | int32_t tv_sec; | |
1967 | int32_t tv_usec; | |
1968 | } ts; | |
1969 | uint32_t caplen; | |
1970 | uint32_t len; | |
1971 | }; | |
1972 | ||
4f1c942b | 1973 | static ssize_t dump_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
bb9ea79e | 1974 | { |
e3f5ec2b | 1975 | DumpState *s = vc->opaque; |
bb9ea79e AL |
1976 | struct pcap_sf_pkthdr hdr; |
1977 | int64_t ts; | |
1978 | int caplen; | |
1979 | ||
1980 | /* Early return in case of previous error. */ | |
1981 | if (s->fd < 0) { | |
4f1c942b | 1982 | return size; |
bb9ea79e AL |
1983 | } |
1984 | ||
37cb6fc3 | 1985 | ts = muldiv64(qemu_get_clock(vm_clock), 1000000, ticks_per_sec); |
bb9ea79e AL |
1986 | caplen = size > s->pcap_caplen ? s->pcap_caplen : size; |
1987 | ||
37cb6fc3 | 1988 | hdr.ts.tv_sec = ts / 1000000; |
bb9ea79e AL |
1989 | hdr.ts.tv_usec = ts % 1000000; |
1990 | hdr.caplen = caplen; | |
1991 | hdr.len = size; | |
1992 | if (write(s->fd, &hdr, sizeof(hdr)) != sizeof(hdr) || | |
1993 | write(s->fd, buf, caplen) != caplen) { | |
1994 | qemu_log("-net dump write error - stop dump\n"); | |
1995 | close(s->fd); | |
1996 | s->fd = -1; | |
1997 | } | |
4f1c942b MM |
1998 | |
1999 | return size; | |
bb9ea79e AL |
2000 | } |
2001 | ||
2002 | static void net_dump_cleanup(VLANClientState *vc) | |
2003 | { | |
2004 | DumpState *s = vc->opaque; | |
2005 | ||
2006 | close(s->fd); | |
2007 | qemu_free(s); | |
2008 | } | |
2009 | ||
10ae5a7a | 2010 | static int net_dump_init(Monitor *mon, VLANState *vlan, const char *device, |
bb9ea79e AL |
2011 | const char *name, const char *filename, int len) |
2012 | { | |
2013 | struct pcap_file_hdr hdr; | |
2014 | DumpState *s; | |
2015 | ||
2016 | s = qemu_malloc(sizeof(DumpState)); | |
2017 | ||
024431b3 | 2018 | s->fd = open(filename, O_CREAT | O_WRONLY | O_BINARY, 0644); |
bb9ea79e | 2019 | if (s->fd < 0) { |
10ae5a7a | 2020 | config_error(mon, "-net dump: can't open %s\n", filename); |
bb9ea79e AL |
2021 | return -1; |
2022 | } | |
2023 | ||
2024 | s->pcap_caplen = len; | |
2025 | ||
2026 | hdr.magic = PCAP_MAGIC; | |
2027 | hdr.version_major = 2; | |
2028 | hdr.version_minor = 4; | |
2029 | hdr.thiszone = 0; | |
2030 | hdr.sigfigs = 0; | |
2031 | hdr.snaplen = s->pcap_caplen; | |
2032 | hdr.linktype = 1; | |
2033 | ||
2034 | if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) { | |
10ae5a7a | 2035 | config_error(mon, "-net dump write error: %s\n", strerror(errno)); |
bb9ea79e AL |
2036 | close(s->fd); |
2037 | qemu_free(s); | |
2038 | return -1; | |
2039 | } | |
2040 | ||
463af534 | 2041 | s->pcap_vc = qemu_new_vlan_client(vlan, device, name, NULL, dump_receive, NULL, |
bb9ea79e AL |
2042 | net_dump_cleanup, s); |
2043 | snprintf(s->pcap_vc->info_str, sizeof(s->pcap_vc->info_str), | |
2044 | "dump to %s (len=%d)", filename, len); | |
2045 | return 0; | |
2046 | } | |
2047 | ||
63a01ef8 AL |
2048 | /* find or alloc a new VLAN */ |
2049 | VLANState *qemu_find_vlan(int id) | |
2050 | { | |
2051 | VLANState **pvlan, *vlan; | |
2052 | for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { | |
2053 | if (vlan->id == id) | |
2054 | return vlan; | |
2055 | } | |
2056 | vlan = qemu_mallocz(sizeof(VLANState)); | |
63a01ef8 AL |
2057 | vlan->id = id; |
2058 | vlan->next = NULL; | |
2059 | pvlan = &first_vlan; | |
2060 | while (*pvlan != NULL) | |
2061 | pvlan = &(*pvlan)->next; | |
2062 | *pvlan = vlan; | |
2063 | return vlan; | |
2064 | } | |
2065 | ||
7697079b AL |
2066 | static int nic_get_free_idx(void) |
2067 | { | |
2068 | int index; | |
2069 | ||
2070 | for (index = 0; index < MAX_NICS; index++) | |
2071 | if (!nd_table[index].used) | |
2072 | return index; | |
2073 | return -1; | |
2074 | } | |
2075 | ||
d07f22c5 AL |
2076 | void qemu_check_nic_model(NICInfo *nd, const char *model) |
2077 | { | |
2078 | const char *models[2]; | |
2079 | ||
2080 | models[0] = model; | |
2081 | models[1] = NULL; | |
2082 | ||
2083 | qemu_check_nic_model_list(nd, models, model); | |
2084 | } | |
2085 | ||
2086 | void qemu_check_nic_model_list(NICInfo *nd, const char * const *models, | |
2087 | const char *default_model) | |
2088 | { | |
2089 | int i, exit_status = 0; | |
2090 | ||
2091 | if (!nd->model) | |
2092 | nd->model = strdup(default_model); | |
2093 | ||
2094 | if (strcmp(nd->model, "?") != 0) { | |
2095 | for (i = 0 ; models[i]; i++) | |
2096 | if (strcmp(nd->model, models[i]) == 0) | |
2097 | return; | |
2098 | ||
2099 | fprintf(stderr, "qemu: Unsupported NIC model: %s\n", nd->model); | |
2100 | exit_status = 1; | |
2101 | } | |
2102 | ||
2103 | fprintf(stderr, "qemu: Supported NIC models: "); | |
2104 | for (i = 0 ; models[i]; i++) | |
2105 | fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n'); | |
2106 | ||
2107 | exit(exit_status); | |
2108 | } | |
2109 | ||
10ae5a7a | 2110 | int net_client_init(Monitor *mon, const char *device, const char *p) |
63a01ef8 AL |
2111 | { |
2112 | char buf[1024]; | |
2113 | int vlan_id, ret; | |
2114 | VLANState *vlan; | |
7a9f6e4a | 2115 | char *name = NULL; |
63a01ef8 AL |
2116 | |
2117 | vlan_id = 0; | |
2118 | if (get_param_value(buf, sizeof(buf), "vlan", p)) { | |
2119 | vlan_id = strtol(buf, NULL, 0); | |
2120 | } | |
2121 | vlan = qemu_find_vlan(vlan_id); | |
9036de1a | 2122 | |
7a9f6e4a | 2123 | if (get_param_value(buf, sizeof(buf), "name", p)) { |
10ae5a7a | 2124 | name = qemu_strdup(buf); |
7a9f6e4a | 2125 | } |
63a01ef8 | 2126 | if (!strcmp(device, "nic")) { |
8e4416af | 2127 | static const char * const nic_params[] = { |
ffe6370c | 2128 | "vlan", "name", "macaddr", "model", "addr", "vectors", NULL |
8e4416af | 2129 | }; |
63a01ef8 AL |
2130 | NICInfo *nd; |
2131 | uint8_t *macaddr; | |
7697079b | 2132 | int idx = nic_get_free_idx(); |
63a01ef8 | 2133 | |
0aa7a205 | 2134 | if (check_params(buf, sizeof(buf), nic_params, p) < 0) { |
10ae5a7a JK |
2135 | config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p); |
2136 | ret = -1; | |
2137 | goto out; | |
8e4416af | 2138 | } |
7697079b | 2139 | if (idx == -1 || nb_nics >= MAX_NICS) { |
10ae5a7a | 2140 | config_error(mon, "Too Many NICs\n"); |
771f1339 AL |
2141 | ret = -1; |
2142 | goto out; | |
63a01ef8 | 2143 | } |
7697079b | 2144 | nd = &nd_table[idx]; |
63a01ef8 AL |
2145 | macaddr = nd->macaddr; |
2146 | macaddr[0] = 0x52; | |
2147 | macaddr[1] = 0x54; | |
2148 | macaddr[2] = 0x00; | |
2149 | macaddr[3] = 0x12; | |
2150 | macaddr[4] = 0x34; | |
7697079b | 2151 | macaddr[5] = 0x56 + idx; |
63a01ef8 AL |
2152 | |
2153 | if (get_param_value(buf, sizeof(buf), "macaddr", p)) { | |
2154 | if (parse_macaddr(macaddr, buf) < 0) { | |
10ae5a7a | 2155 | config_error(mon, "invalid syntax for ethernet address\n"); |
771f1339 AL |
2156 | ret = -1; |
2157 | goto out; | |
63a01ef8 AL |
2158 | } |
2159 | } | |
2160 | if (get_param_value(buf, sizeof(buf), "model", p)) { | |
2161 | nd->model = strdup(buf); | |
2162 | } | |
5607c388 MA |
2163 | if (get_param_value(buf, sizeof(buf), "addr", p)) { |
2164 | nd->devaddr = strdup(buf); | |
2165 | } | |
ffe6370c MT |
2166 | nd->nvectors = NIC_NVECTORS_UNSPECIFIED; |
2167 | if (get_param_value(buf, sizeof(buf), "vectors", p)) { | |
2168 | char *endptr; | |
2169 | long vectors = strtol(buf, &endptr, 0); | |
2170 | if (*endptr) { | |
2171 | config_error(mon, "invalid syntax for # of vectors\n"); | |
2172 | ret = -1; | |
2173 | goto out; | |
2174 | } | |
2175 | if (vectors < 0 || vectors > 0x7ffffff) { | |
2176 | config_error(mon, "invalid # of vectors\n"); | |
2177 | ret = -1; | |
2178 | goto out; | |
2179 | } | |
2180 | nd->nvectors = vectors; | |
2181 | } | |
63a01ef8 | 2182 | nd->vlan = vlan; |
7a9f6e4a | 2183 | nd->name = name; |
7697079b | 2184 | nd->used = 1; |
7a9f6e4a | 2185 | name = NULL; |
63a01ef8 AL |
2186 | nb_nics++; |
2187 | vlan->nb_guest_devs++; | |
4d73cd3b | 2188 | ret = idx; |
63a01ef8 AL |
2189 | } else |
2190 | if (!strcmp(device, "none")) { | |
8e4416af | 2191 | if (*p != '\0') { |
10ae5a7a JK |
2192 | config_error(mon, "'none' takes no parameters\n"); |
2193 | ret = -1; | |
2194 | goto out; | |
8e4416af | 2195 | } |
63a01ef8 AL |
2196 | /* does nothing. It is needed to signal that no network cards |
2197 | are wanted */ | |
2198 | ret = 0; | |
2199 | } else | |
2200 | #ifdef CONFIG_SLIRP | |
2201 | if (!strcmp(device, "user")) { | |
8e4416af AL |
2202 | static const char * const slirp_params[] = { |
2203 | "vlan", "name", "hostname", "restrict", "ip", NULL | |
2204 | }; | |
b8e8af38 JK |
2205 | int restricted = 0; |
2206 | char *ip = NULL; | |
2207 | ||
0aa7a205 | 2208 | if (check_params(buf, sizeof(buf), slirp_params, p) < 0) { |
10ae5a7a JK |
2209 | config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p); |
2210 | ret = -1; | |
2211 | goto out; | |
8e4416af | 2212 | } |
63a01ef8 AL |
2213 | if (get_param_value(buf, sizeof(buf), "hostname", p)) { |
2214 | pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf); | |
2215 | } | |
49ec9b40 | 2216 | if (get_param_value(buf, sizeof(buf), "restrict", p)) { |
b8e8af38 | 2217 | restricted = (buf[0] == 'y') ? 1 : 0; |
49ec9b40 AL |
2218 | } |
2219 | if (get_param_value(buf, sizeof(buf), "ip", p)) { | |
b8e8af38 | 2220 | ip = qemu_strdup(buf); |
49ec9b40 | 2221 | } |
63a01ef8 | 2222 | vlan->nb_host_devs++; |
b8e8af38 JK |
2223 | ret = net_slirp_init(vlan, device, name, restricted, ip); |
2224 | qemu_free(ip); | |
8ca9217d AL |
2225 | } else if (!strcmp(device, "channel")) { |
2226 | long port; | |
2227 | char name[20], *devname; | |
2228 | struct VMChannel *vmc; | |
2229 | ||
2230 | port = strtol(p, &devname, 10); | |
2231 | devname++; | |
2232 | if (port < 1 || port > 65535) { | |
10ae5a7a | 2233 | config_error(mon, "vmchannel wrong port number\n"); |
771f1339 AL |
2234 | ret = -1; |
2235 | goto out; | |
8ca9217d AL |
2236 | } |
2237 | vmc = malloc(sizeof(struct VMChannel)); | |
2238 | snprintf(name, 20, "vmchannel%ld", port); | |
2239 | vmc->hd = qemu_chr_open(name, devname, NULL); | |
2240 | if (!vmc->hd) { | |
10ae5a7a JK |
2241 | config_error(mon, "could not open vmchannel device '%s'\n", |
2242 | devname); | |
771f1339 AL |
2243 | ret = -1; |
2244 | goto out; | |
8ca9217d AL |
2245 | } |
2246 | vmc->port = port; | |
2247 | slirp_add_exec(3, vmc->hd, 4, port); | |
2248 | qemu_chr_add_handlers(vmc->hd, vmchannel_can_read, vmchannel_read, | |
2249 | NULL, vmc); | |
2250 | ret = 0; | |
63a01ef8 AL |
2251 | } else |
2252 | #endif | |
2253 | #ifdef _WIN32 | |
2254 | if (!strcmp(device, "tap")) { | |
8e4416af AL |
2255 | static const char * const tap_params[] = { |
2256 | "vlan", "name", "ifname", NULL | |
2257 | }; | |
63a01ef8 | 2258 | char ifname[64]; |
8e4416af | 2259 | |
0aa7a205 | 2260 | if (check_params(buf, sizeof(buf), tap_params, p) < 0) { |
10ae5a7a JK |
2261 | config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p); |
2262 | ret = -1; | |
2263 | goto out; | |
8e4416af | 2264 | } |
63a01ef8 | 2265 | if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) { |
10ae5a7a | 2266 | config_error(mon, "tap: no interface name\n"); |
771f1339 AL |
2267 | ret = -1; |
2268 | goto out; | |
63a01ef8 AL |
2269 | } |
2270 | vlan->nb_host_devs++; | |
7a9f6e4a | 2271 | ret = tap_win32_init(vlan, device, name, ifname); |
63a01ef8 | 2272 | } else |
b29fe3ed | 2273 | #elif defined (_AIX) |
63a01ef8 AL |
2274 | #else |
2275 | if (!strcmp(device, "tap")) { | |
0aa7a205 | 2276 | char ifname[64], chkbuf[64]; |
63a01ef8 | 2277 | char setup_script[1024], down_script[1024]; |
4a77b25e | 2278 | TAPState *s; |
63a01ef8 AL |
2279 | int fd; |
2280 | vlan->nb_host_devs++; | |
2281 | if (get_param_value(buf, sizeof(buf), "fd", p) > 0) { | |
0df0ff6d MM |
2282 | static const char * const fd_params[] = { |
2283 | "vlan", "name", "fd", "sndbuf", NULL | |
2284 | }; | |
0aa7a205 | 2285 | if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) { |
10ae5a7a JK |
2286 | config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); |
2287 | ret = -1; | |
2288 | goto out; | |
8e4416af | 2289 | } |
63a01ef8 AL |
2290 | fd = strtol(buf, NULL, 0); |
2291 | fcntl(fd, F_SETFL, O_NONBLOCK); | |
4a77b25e | 2292 | s = net_tap_fd_init(vlan, device, name, fd); |
63a01ef8 | 2293 | } else { |
8e4416af | 2294 | static const char * const tap_params[] = { |
0df0ff6d | 2295 | "vlan", "name", "ifname", "script", "downscript", "sndbuf", NULL |
8e4416af | 2296 | }; |
0aa7a205 | 2297 | if (check_params(chkbuf, sizeof(chkbuf), tap_params, p) < 0) { |
10ae5a7a JK |
2298 | config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); |
2299 | ret = -1; | |
2300 | goto out; | |
8e4416af | 2301 | } |
63a01ef8 AL |
2302 | if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) { |
2303 | ifname[0] = '\0'; | |
2304 | } | |
2305 | if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) { | |
2306 | pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT); | |
2307 | } | |
2308 | if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) { | |
2309 | pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT); | |
2310 | } | |
4a77b25e MM |
2311 | s = net_tap_init(vlan, device, name, ifname, setup_script, down_script); |
2312 | } | |
2313 | if (s != NULL) { | |
0df0ff6d MM |
2314 | if (get_param_value(buf, sizeof(buf), "sndbuf", p)) { |
2315 | tap_set_sndbuf(s, atoi(buf), mon); | |
2316 | } | |
4a77b25e MM |
2317 | ret = 0; |
2318 | } else { | |
2319 | ret = -1; | |
63a01ef8 AL |
2320 | } |
2321 | } else | |
2322 | #endif | |
2323 | if (!strcmp(device, "socket")) { | |
0aa7a205 | 2324 | char chkbuf[64]; |
63a01ef8 | 2325 | if (get_param_value(buf, sizeof(buf), "fd", p) > 0) { |
0df0ff6d MM |
2326 | static const char * const fd_params[] = { |
2327 | "vlan", "name", "fd", NULL | |
2328 | }; | |
63a01ef8 | 2329 | int fd; |
0aa7a205 | 2330 | if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) { |
10ae5a7a JK |
2331 | config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); |
2332 | ret = -1; | |
2333 | goto out; | |
8e4416af | 2334 | } |
63a01ef8 AL |
2335 | fd = strtol(buf, NULL, 0); |
2336 | ret = -1; | |
7a9f6e4a | 2337 | if (net_socket_fd_init(vlan, device, name, fd, 1)) |
63a01ef8 AL |
2338 | ret = 0; |
2339 | } else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) { | |
8e4416af AL |
2340 | static const char * const listen_params[] = { |
2341 | "vlan", "name", "listen", NULL | |
2342 | }; | |
0aa7a205 | 2343 | if (check_params(chkbuf, sizeof(chkbuf), listen_params, p) < 0) { |
10ae5a7a JK |
2344 | config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); |
2345 | ret = -1; | |
2346 | goto out; | |
8e4416af | 2347 | } |
7a9f6e4a | 2348 | ret = net_socket_listen_init(vlan, device, name, buf); |
63a01ef8 | 2349 | } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) { |
8e4416af AL |
2350 | static const char * const connect_params[] = { |
2351 | "vlan", "name", "connect", NULL | |
2352 | }; | |
0aa7a205 | 2353 | if (check_params(chkbuf, sizeof(chkbuf), connect_params, p) < 0) { |
10ae5a7a JK |
2354 | config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); |
2355 | ret = -1; | |
2356 | goto out; | |
8e4416af | 2357 | } |
7a9f6e4a | 2358 | ret = net_socket_connect_init(vlan, device, name, buf); |
63a01ef8 | 2359 | } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) { |
8e4416af AL |
2360 | static const char * const mcast_params[] = { |
2361 | "vlan", "name", "mcast", NULL | |
2362 | }; | |
0aa7a205 | 2363 | if (check_params(chkbuf, sizeof(chkbuf), mcast_params, p) < 0) { |
10ae5a7a JK |
2364 | config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); |
2365 | ret = -1; | |
2366 | goto out; | |
8e4416af | 2367 | } |
7a9f6e4a | 2368 | ret = net_socket_mcast_init(vlan, device, name, buf); |
63a01ef8 | 2369 | } else { |
10ae5a7a | 2370 | config_error(mon, "Unknown socket options: %s\n", p); |
771f1339 AL |
2371 | ret = -1; |
2372 | goto out; | |
63a01ef8 AL |
2373 | } |
2374 | vlan->nb_host_devs++; | |
2375 | } else | |
2376 | #ifdef CONFIG_VDE | |
2377 | if (!strcmp(device, "vde")) { | |
8e4416af AL |
2378 | static const char * const vde_params[] = { |
2379 | "vlan", "name", "sock", "port", "group", "mode", NULL | |
2380 | }; | |
63a01ef8 AL |
2381 | char vde_sock[1024], vde_group[512]; |
2382 | int vde_port, vde_mode; | |
8e4416af | 2383 | |
0aa7a205 | 2384 | if (check_params(buf, sizeof(buf), vde_params, p) < 0) { |
10ae5a7a JK |
2385 | config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p); |
2386 | ret = -1; | |
2387 | goto out; | |
8e4416af | 2388 | } |
63a01ef8 AL |
2389 | vlan->nb_host_devs++; |
2390 | if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) { | |
2391 | vde_sock[0] = '\0'; | |
2392 | } | |
2393 | if (get_param_value(buf, sizeof(buf), "port", p) > 0) { | |
2394 | vde_port = strtol(buf, NULL, 10); | |
2395 | } else { | |
2396 | vde_port = 0; | |
2397 | } | |
2398 | if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) { | |
2399 | vde_group[0] = '\0'; | |
2400 | } | |
2401 | if (get_param_value(buf, sizeof(buf), "mode", p) > 0) { | |
2402 | vde_mode = strtol(buf, NULL, 8); | |
2403 | } else { | |
2404 | vde_mode = 0700; | |
2405 | } | |
7a9f6e4a | 2406 | ret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode); |
63a01ef8 AL |
2407 | } else |
2408 | #endif | |
bb9ea79e AL |
2409 | if (!strcmp(device, "dump")) { |
2410 | int len = 65536; | |
2411 | ||
2412 | if (get_param_value(buf, sizeof(buf), "len", p) > 0) { | |
2413 | len = strtol(buf, NULL, 0); | |
2414 | } | |
2415 | if (!get_param_value(buf, sizeof(buf), "file", p)) { | |
2416 | snprintf(buf, sizeof(buf), "qemu-vlan%d.pcap", vlan_id); | |
2417 | } | |
10ae5a7a | 2418 | ret = net_dump_init(mon, vlan, device, name, buf, len); |
bb9ea79e | 2419 | } else { |
10ae5a7a | 2420 | config_error(mon, "Unknown network device: %s\n", device); |
771f1339 AL |
2421 | ret = -1; |
2422 | goto out; | |
63a01ef8 AL |
2423 | } |
2424 | if (ret < 0) { | |
10ae5a7a | 2425 | config_error(mon, "Could not initialize device '%s'\n", device); |
63a01ef8 | 2426 | } |
771f1339 | 2427 | out: |
10ae5a7a | 2428 | qemu_free(name); |
63a01ef8 AL |
2429 | return ret; |
2430 | } | |
2431 | ||
8b13c4a7 AL |
2432 | void net_client_uninit(NICInfo *nd) |
2433 | { | |
2434 | nd->vlan->nb_guest_devs--; | |
2435 | nb_nics--; | |
2436 | nd->used = 0; | |
2437 | free((void *)nd->model); | |
2438 | } | |
2439 | ||
6f338c34 AL |
2440 | static int net_host_check_device(const char *device) |
2441 | { | |
2442 | int i; | |
bb9ea79e | 2443 | const char *valid_param_list[] = { "tap", "socket", "dump" |
6f338c34 AL |
2444 | #ifdef CONFIG_SLIRP |
2445 | ,"user" | |
2446 | #endif | |
2447 | #ifdef CONFIG_VDE | |
2448 | ,"vde" | |
2449 | #endif | |
2450 | }; | |
2451 | for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) { | |
2452 | if (!strncmp(valid_param_list[i], device, | |
2453 | strlen(valid_param_list[i]))) | |
2454 | return 1; | |
2455 | } | |
2456 | ||
2457 | return 0; | |
2458 | } | |
2459 | ||
376253ec | 2460 | void net_host_device_add(Monitor *mon, const char *device, const char *opts) |
6f338c34 AL |
2461 | { |
2462 | if (!net_host_check_device(device)) { | |
376253ec | 2463 | monitor_printf(mon, "invalid host network device %s\n", device); |
6f338c34 AL |
2464 | return; |
2465 | } | |
10ae5a7a | 2466 | if (net_client_init(mon, device, opts ? opts : "") < 0) { |
5c8be678 AL |
2467 | monitor_printf(mon, "adding host network device %s failed\n", device); |
2468 | } | |
6f338c34 AL |
2469 | } |
2470 | ||
376253ec | 2471 | void net_host_device_remove(Monitor *mon, int vlan_id, const char *device) |
6f338c34 AL |
2472 | { |
2473 | VLANState *vlan; | |
2474 | VLANClientState *vc; | |
2475 | ||
6f338c34 | 2476 | vlan = qemu_find_vlan(vlan_id); |
6f338c34 | 2477 | |
e8f1f9db AL |
2478 | for (vc = vlan->first_client; vc != NULL; vc = vc->next) { |
2479 | if (!strcmp(vc->name, device)) { | |
6f338c34 | 2480 | break; |
e8f1f9db AL |
2481 | } |
2482 | } | |
6f338c34 AL |
2483 | |
2484 | if (!vc) { | |
376253ec | 2485 | monitor_printf(mon, "can't find device %s\n", device); |
6f338c34 AL |
2486 | return; |
2487 | } | |
e8f1f9db AL |
2488 | if (!net_host_check_device(vc->model)) { |
2489 | monitor_printf(mon, "invalid host network device %s\n", device); | |
2490 | return; | |
2491 | } | |
6f338c34 AL |
2492 | qemu_del_vlan_client(vc); |
2493 | } | |
2494 | ||
63a01ef8 AL |
2495 | int net_client_parse(const char *str) |
2496 | { | |
2497 | const char *p; | |
2498 | char *q; | |
2499 | char device[64]; | |
2500 | ||
2501 | p = str; | |
2502 | q = device; | |
2503 | while (*p != '\0' && *p != ',') { | |
2504 | if ((q - device) < sizeof(device) - 1) | |
2505 | *q++ = *p; | |
2506 | p++; | |
2507 | } | |
2508 | *q = '\0'; | |
2509 | if (*p == ',') | |
2510 | p++; | |
2511 | ||
10ae5a7a | 2512 | return net_client_init(NULL, device, p); |
63a01ef8 AL |
2513 | } |
2514 | ||
406c8df3 GC |
2515 | void net_set_boot_mask(int net_boot_mask) |
2516 | { | |
2517 | int i; | |
2518 | ||
2519 | /* Only the first four NICs may be bootable */ | |
2520 | net_boot_mask = net_boot_mask & 0xF; | |
2521 | ||
2522 | for (i = 0; i < nb_nics; i++) { | |
2523 | if (net_boot_mask & (1 << i)) { | |
2524 | nd_table[i].bootable = 1; | |
2525 | net_boot_mask &= ~(1 << i); | |
2526 | } | |
2527 | } | |
2528 | ||
2529 | if (net_boot_mask) { | |
2530 | fprintf(stderr, "Cannot boot from non-existent NIC\n"); | |
2531 | exit(1); | |
2532 | } | |
2533 | } | |
2534 | ||
376253ec | 2535 | void do_info_network(Monitor *mon) |
63a01ef8 AL |
2536 | { |
2537 | VLANState *vlan; | |
2538 | VLANClientState *vc; | |
2539 | ||
2540 | for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { | |
376253ec | 2541 | monitor_printf(mon, "VLAN %d devices:\n", vlan->id); |
63a01ef8 | 2542 | for(vc = vlan->first_client; vc != NULL; vc = vc->next) |
376253ec | 2543 | monitor_printf(mon, " %s: %s\n", vc->name, vc->info_str); |
63a01ef8 AL |
2544 | } |
2545 | } | |
2546 | ||
376253ec | 2547 | int do_set_link(Monitor *mon, const char *name, const char *up_or_down) |
436e5e53 AL |
2548 | { |
2549 | VLANState *vlan; | |
2550 | VLANClientState *vc = NULL; | |
2551 | ||
2552 | for (vlan = first_vlan; vlan != NULL; vlan = vlan->next) | |
2553 | for (vc = vlan->first_client; vc != NULL; vc = vc->next) | |
2554 | if (strcmp(vc->name, name) == 0) | |
dd5de373 EI |
2555 | goto done; |
2556 | done: | |
436e5e53 AL |
2557 | |
2558 | if (!vc) { | |
376253ec | 2559 | monitor_printf(mon, "could not find network device '%s'", name); |
436e5e53 AL |
2560 | return 0; |
2561 | } | |
2562 | ||
2563 | if (strcmp(up_or_down, "up") == 0) | |
2564 | vc->link_down = 0; | |
2565 | else if (strcmp(up_or_down, "down") == 0) | |
2566 | vc->link_down = 1; | |
2567 | else | |
376253ec AL |
2568 | monitor_printf(mon, "invalid link status '%s'; only 'up' or 'down' " |
2569 | "valid\n", up_or_down); | |
436e5e53 | 2570 | |
34b25ca7 AL |
2571 | if (vc->link_status_changed) |
2572 | vc->link_status_changed(vc); | |
2573 | ||
436e5e53 AL |
2574 | return 1; |
2575 | } | |
2576 | ||
63a01ef8 AL |
2577 | void net_cleanup(void) |
2578 | { | |
2579 | VLANState *vlan; | |
2580 | ||
63a01ef8 AL |
2581 | /* close network clients */ |
2582 | for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { | |
b946a153 | 2583 | VLANClientState *vc = vlan->first_client; |
63a01ef8 | 2584 | |
b946a153 AL |
2585 | while (vc) { |
2586 | VLANClientState *next = vc->next; | |
63a01ef8 | 2587 | |
b946a153 AL |
2588 | qemu_del_vlan_client(vc); |
2589 | ||
2590 | vc = next; | |
63a01ef8 AL |
2591 | } |
2592 | } | |
63a01ef8 AL |
2593 | } |
2594 | ||
2595 | void net_client_check(void) | |
2596 | { | |
2597 | VLANState *vlan; | |
2598 | ||
2599 | for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { | |
2600 | if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0) | |
2601 | continue; | |
2602 | if (vlan->nb_guest_devs == 0) | |
2603 | fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id); | |
2604 | if (vlan->nb_host_devs == 0) | |
2605 | fprintf(stderr, | |
2606 | "Warning: vlan %d is not connected to host network\n", | |
2607 | vlan->id); | |
2608 | } | |
2609 | } |