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Commit | Line | Data |
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305b0eb2 AL |
1 | /* |
2 | * inet and unix socket functions for qemu | |
3 | * | |
4 | * (c) 2008 Gerd Hoffmann <kraxel@redhat.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; under version 2 of the License. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | */ | |
d247d25f AL |
15 | #include <stdio.h> |
16 | #include <stdlib.h> | |
17 | #include <string.h> | |
18 | #include <ctype.h> | |
19 | #include <errno.h> | |
20 | #include <unistd.h> | |
21 | ||
22 | #include "qemu_socket.h" | |
47398b9c | 23 | #include "qemu-common.h" /* for qemu_isdigit */ |
d247d25f AL |
24 | |
25 | #ifndef AI_ADDRCONFIG | |
26 | # define AI_ADDRCONFIG 0 | |
27 | #endif | |
28 | ||
d247d25f AL |
29 | static const int on=1, off=0; |
30 | ||
2af2bf67 | 31 | /* used temporarely until all users are converted to QemuOpts */ |
c1390903 | 32 | static QemuOptsList dummy_opts = { |
2af2bf67 | 33 | .name = "dummy", |
72cf2d4f | 34 | .head = QTAILQ_HEAD_INITIALIZER(dummy_opts.head), |
2af2bf67 GH |
35 | .desc = { |
36 | { | |
37 | .name = "path", | |
38 | .type = QEMU_OPT_STRING, | |
f4c94c7c GH |
39 | },{ |
40 | .name = "host", | |
41 | .type = QEMU_OPT_STRING, | |
42 | },{ | |
43 | .name = "port", | |
44 | .type = QEMU_OPT_STRING, | |
45 | },{ | |
46 | .name = "to", | |
47 | .type = QEMU_OPT_NUMBER, | |
48 | },{ | |
49 | .name = "ipv4", | |
50 | .type = QEMU_OPT_BOOL, | |
51 | },{ | |
52 | .name = "ipv6", | |
53 | .type = QEMU_OPT_BOOL, | |
2af2bf67 GH |
54 | }, |
55 | { /* end if list */ } | |
56 | }, | |
57 | }; | |
58 | ||
d247d25f AL |
59 | static int inet_getport(struct addrinfo *e) |
60 | { | |
61 | struct sockaddr_in *i4; | |
62 | struct sockaddr_in6 *i6; | |
63 | ||
64 | switch (e->ai_family) { | |
65 | case PF_INET6: | |
66 | i6 = (void*)e->ai_addr; | |
67 | return ntohs(i6->sin6_port); | |
68 | case PF_INET: | |
69 | i4 = (void*)e->ai_addr; | |
70 | return ntohs(i4->sin_port); | |
71 | default: | |
72 | return 0; | |
73 | } | |
74 | } | |
75 | ||
76 | static void inet_setport(struct addrinfo *e, int port) | |
77 | { | |
78 | struct sockaddr_in *i4; | |
79 | struct sockaddr_in6 *i6; | |
80 | ||
81 | switch (e->ai_family) { | |
82 | case PF_INET6: | |
83 | i6 = (void*)e->ai_addr; | |
84 | i6->sin6_port = htons(port); | |
85 | break; | |
86 | case PF_INET: | |
87 | i4 = (void*)e->ai_addr; | |
88 | i4->sin_port = htons(port); | |
89 | break; | |
90 | } | |
91 | } | |
92 | ||
c9c4b34e | 93 | const char *inet_strfamily(int family) |
d247d25f AL |
94 | { |
95 | switch (family) { | |
96 | case PF_INET6: return "ipv6"; | |
97 | case PF_INET: return "ipv4"; | |
98 | case PF_UNIX: return "unix"; | |
99 | } | |
c445321e | 100 | return "unknown"; |
d247d25f AL |
101 | } |
102 | ||
e5bc776f | 103 | int inet_listen_opts(QemuOpts *opts, int port_offset) |
d247d25f AL |
104 | { |
105 | struct addrinfo ai,*res,*e; | |
e5bc776f | 106 | const char *addr; |
d247d25f AL |
107 | char port[33]; |
108 | char uaddr[INET6_ADDRSTRLEN+1]; | |
109 | char uport[33]; | |
e5bc776f | 110 | int slisten,rc,to,try_next; |
d247d25f AL |
111 | |
112 | memset(&ai,0, sizeof(ai)); | |
113 | ai.ai_flags = AI_PASSIVE | AI_ADDRCONFIG; | |
114 | ai.ai_family = PF_UNSPEC; | |
e5bc776f | 115 | ai.ai_socktype = SOCK_STREAM; |
d247d25f | 116 | |
e23a22e6 JO |
117 | if ((qemu_opt_get(opts, "host") == NULL) || |
118 | (qemu_opt_get(opts, "port") == NULL)) { | |
e5bc776f GH |
119 | fprintf(stderr, "%s: host and/or port not specified\n", __FUNCTION__); |
120 | return -1; | |
d247d25f | 121 | } |
e5bc776f GH |
122 | pstrcpy(port, sizeof(port), qemu_opt_get(opts, "port")); |
123 | addr = qemu_opt_get(opts, "host"); | |
d247d25f | 124 | |
e5bc776f GH |
125 | to = qemu_opt_get_number(opts, "to", 0); |
126 | if (qemu_opt_get_bool(opts, "ipv4", 0)) | |
d247d25f | 127 | ai.ai_family = PF_INET; |
e5bc776f | 128 | if (qemu_opt_get_bool(opts, "ipv6", 0)) |
d247d25f AL |
129 | ai.ai_family = PF_INET6; |
130 | ||
131 | /* lookup */ | |
132 | if (port_offset) | |
133 | snprintf(port, sizeof(port), "%d", atoi(port) + port_offset); | |
134 | rc = getaddrinfo(strlen(addr) ? addr : NULL, port, &ai, &res); | |
135 | if (rc != 0) { | |
e5bc776f GH |
136 | fprintf(stderr,"getaddrinfo(%s,%s): %s\n", addr, port, |
137 | gai_strerror(rc)); | |
d247d25f AL |
138 | return -1; |
139 | } | |
d247d25f AL |
140 | |
141 | /* create socket + bind */ | |
142 | for (e = res; e != NULL; e = e->ai_next) { | |
39b6efc8 | 143 | getnameinfo((struct sockaddr*)e->ai_addr,e->ai_addrlen, |
144 | uaddr,INET6_ADDRSTRLEN,uport,32, | |
145 | NI_NUMERICHOST | NI_NUMERICSERV); | |
40ff6d7e | 146 | slisten = qemu_socket(e->ai_family, e->ai_socktype, e->ai_protocol); |
39b6efc8 | 147 | if (slisten < 0) { |
d247d25f AL |
148 | fprintf(stderr,"%s: socket(%s): %s\n", __FUNCTION__, |
149 | inet_strfamily(e->ai_family), strerror(errno)); | |
39b6efc8 | 150 | continue; |
151 | } | |
d247d25f AL |
152 | |
153 | setsockopt(slisten,SOL_SOCKET,SO_REUSEADDR,(void*)&on,sizeof(on)); | |
154 | #ifdef IPV6_V6ONLY | |
155 | if (e->ai_family == PF_INET6) { | |
156 | /* listen on both ipv4 and ipv6 */ | |
39b6efc8 | 157 | setsockopt(slisten,IPPROTO_IPV6,IPV6_V6ONLY,(void*)&off, |
158 | sizeof(off)); | |
d247d25f AL |
159 | } |
160 | #endif | |
161 | ||
162 | for (;;) { | |
163 | if (bind(slisten, e->ai_addr, e->ai_addrlen) == 0) { | |
d247d25f AL |
164 | goto listen; |
165 | } | |
166 | try_next = to && (inet_getport(e) <= to + port_offset); | |
136faa36 | 167 | if (!try_next) |
d247d25f AL |
168 | fprintf(stderr,"%s: bind(%s,%s,%d): %s\n", __FUNCTION__, |
169 | inet_strfamily(e->ai_family), uaddr, inet_getport(e), | |
170 | strerror(errno)); | |
171 | if (try_next) { | |
172 | inet_setport(e, inet_getport(e) + 1); | |
173 | continue; | |
174 | } | |
175 | break; | |
176 | } | |
177 | closesocket(slisten); | |
178 | } | |
179 | fprintf(stderr, "%s: FAILED\n", __FUNCTION__); | |
180 | freeaddrinfo(res); | |
181 | return -1; | |
182 | ||
183 | listen: | |
184 | if (listen(slisten,1) != 0) { | |
185 | perror("listen"); | |
186 | closesocket(slisten); | |
39b6efc8 | 187 | freeaddrinfo(res); |
d247d25f AL |
188 | return -1; |
189 | } | |
e5bc776f GH |
190 | snprintf(uport, sizeof(uport), "%d", inet_getport(e) - port_offset); |
191 | qemu_opt_set(opts, "host", uaddr); | |
192 | qemu_opt_set(opts, "port", uport); | |
193 | qemu_opt_set(opts, "ipv6", (e->ai_family == PF_INET6) ? "on" : "off"); | |
194 | qemu_opt_set(opts, "ipv4", (e->ai_family != PF_INET6) ? "on" : "off"); | |
d247d25f AL |
195 | freeaddrinfo(res); |
196 | return slisten; | |
197 | } | |
198 | ||
f4c94c7c | 199 | int inet_connect_opts(QemuOpts *opts) |
d247d25f AL |
200 | { |
201 | struct addrinfo ai,*res,*e; | |
f4c94c7c GH |
202 | const char *addr; |
203 | const char *port; | |
d247d25f AL |
204 | char uaddr[INET6_ADDRSTRLEN+1]; |
205 | char uport[33]; | |
206 | int sock,rc; | |
207 | ||
208 | memset(&ai,0, sizeof(ai)); | |
209 | ai.ai_flags = AI_CANONNAME | AI_ADDRCONFIG; | |
210 | ai.ai_family = PF_UNSPEC; | |
f4c94c7c | 211 | ai.ai_socktype = SOCK_STREAM; |
d247d25f | 212 | |
f4c94c7c GH |
213 | addr = qemu_opt_get(opts, "host"); |
214 | port = qemu_opt_get(opts, "port"); | |
215 | if (addr == NULL || port == NULL) { | |
216 | fprintf(stderr, "inet_connect: host and/or port not specified\n"); | |
217 | return -1; | |
d247d25f AL |
218 | } |
219 | ||
f4c94c7c | 220 | if (qemu_opt_get_bool(opts, "ipv4", 0)) |
d247d25f | 221 | ai.ai_family = PF_INET; |
f4c94c7c | 222 | if (qemu_opt_get_bool(opts, "ipv6", 0)) |
d247d25f AL |
223 | ai.ai_family = PF_INET6; |
224 | ||
225 | /* lookup */ | |
226 | if (0 != (rc = getaddrinfo(addr, port, &ai, &res))) { | |
f4c94c7c GH |
227 | fprintf(stderr,"getaddrinfo(%s,%s): %s\n", addr, port, |
228 | gai_strerror(rc)); | |
d247d25f AL |
229 | return -1; |
230 | } | |
d247d25f AL |
231 | |
232 | for (e = res; e != NULL; e = e->ai_next) { | |
39b6efc8 | 233 | if (getnameinfo((struct sockaddr*)e->ai_addr,e->ai_addrlen, |
234 | uaddr,INET6_ADDRSTRLEN,uport,32, | |
235 | NI_NUMERICHOST | NI_NUMERICSERV) != 0) { | |
d247d25f | 236 | fprintf(stderr,"%s: getnameinfo: oops\n", __FUNCTION__); |
39b6efc8 | 237 | continue; |
238 | } | |
40ff6d7e | 239 | sock = qemu_socket(e->ai_family, e->ai_socktype, e->ai_protocol); |
39b6efc8 | 240 | if (sock < 0) { |
d247d25f | 241 | fprintf(stderr,"%s: socket(%s): %s\n", __FUNCTION__, |
39b6efc8 | 242 | inet_strfamily(e->ai_family), strerror(errno)); |
243 | continue; | |
244 | } | |
d247d25f AL |
245 | setsockopt(sock,SOL_SOCKET,SO_REUSEADDR,(void*)&on,sizeof(on)); |
246 | ||
39b6efc8 | 247 | /* connect to peer */ |
248 | if (connect(sock,e->ai_addr,e->ai_addrlen) < 0) { | |
136faa36 | 249 | if (NULL == e->ai_next) |
d247d25f AL |
250 | fprintf(stderr, "%s: connect(%s,%s,%s,%s): %s\n", __FUNCTION__, |
251 | inet_strfamily(e->ai_family), | |
252 | e->ai_canonname, uaddr, uport, strerror(errno)); | |
253 | closesocket(sock); | |
39b6efc8 | 254 | continue; |
255 | } | |
d247d25f | 256 | freeaddrinfo(res); |
39b6efc8 | 257 | return sock; |
d247d25f AL |
258 | } |
259 | freeaddrinfo(res); | |
260 | return -1; | |
261 | } | |
262 | ||
7e1b35b4 GH |
263 | int inet_dgram_opts(QemuOpts *opts) |
264 | { | |
265 | struct addrinfo ai, *peer = NULL, *local = NULL; | |
266 | const char *addr; | |
267 | const char *port; | |
268 | char uaddr[INET6_ADDRSTRLEN+1]; | |
269 | char uport[33]; | |
270 | int sock = -1, rc; | |
271 | ||
272 | /* lookup peer addr */ | |
273 | memset(&ai,0, sizeof(ai)); | |
274 | ai.ai_flags = AI_CANONNAME | AI_ADDRCONFIG; | |
275 | ai.ai_family = PF_UNSPEC; | |
276 | ai.ai_socktype = SOCK_DGRAM; | |
277 | ||
278 | addr = qemu_opt_get(opts, "host"); | |
279 | port = qemu_opt_get(opts, "port"); | |
280 | if (addr == NULL || strlen(addr) == 0) { | |
281 | addr = "localhost"; | |
282 | } | |
283 | if (port == NULL || strlen(port) == 0) { | |
284 | fprintf(stderr, "inet_dgram: port not specified\n"); | |
285 | return -1; | |
286 | } | |
287 | ||
288 | if (qemu_opt_get_bool(opts, "ipv4", 0)) | |
289 | ai.ai_family = PF_INET; | |
290 | if (qemu_opt_get_bool(opts, "ipv6", 0)) | |
291 | ai.ai_family = PF_INET6; | |
292 | ||
293 | if (0 != (rc = getaddrinfo(addr, port, &ai, &peer))) { | |
294 | fprintf(stderr,"getaddrinfo(%s,%s): %s\n", addr, port, | |
295 | gai_strerror(rc)); | |
296 | return -1; | |
297 | } | |
7e1b35b4 GH |
298 | |
299 | /* lookup local addr */ | |
300 | memset(&ai,0, sizeof(ai)); | |
301 | ai.ai_flags = AI_PASSIVE; | |
302 | ai.ai_family = peer->ai_family; | |
303 | ai.ai_socktype = SOCK_DGRAM; | |
304 | ||
305 | addr = qemu_opt_get(opts, "localaddr"); | |
306 | port = qemu_opt_get(opts, "localport"); | |
307 | if (addr == NULL || strlen(addr) == 0) { | |
308 | addr = NULL; | |
309 | } | |
310 | if (!port || strlen(port) == 0) | |
311 | port = "0"; | |
312 | ||
313 | if (0 != (rc = getaddrinfo(addr, port, &ai, &local))) { | |
314 | fprintf(stderr,"getaddrinfo(%s,%s): %s\n", addr, port, | |
315 | gai_strerror(rc)); | |
316 | return -1; | |
317 | } | |
7e1b35b4 GH |
318 | |
319 | /* create socket */ | |
40ff6d7e | 320 | sock = qemu_socket(peer->ai_family, peer->ai_socktype, peer->ai_protocol); |
7e1b35b4 GH |
321 | if (sock < 0) { |
322 | fprintf(stderr,"%s: socket(%s): %s\n", __FUNCTION__, | |
323 | inet_strfamily(peer->ai_family), strerror(errno)); | |
324 | goto err; | |
325 | } | |
326 | setsockopt(sock,SOL_SOCKET,SO_REUSEADDR,(void*)&on,sizeof(on)); | |
327 | ||
328 | /* bind socket */ | |
329 | if (getnameinfo((struct sockaddr*)local->ai_addr,local->ai_addrlen, | |
330 | uaddr,INET6_ADDRSTRLEN,uport,32, | |
331 | NI_NUMERICHOST | NI_NUMERICSERV) != 0) { | |
332 | fprintf(stderr, "%s: getnameinfo: oops\n", __FUNCTION__); | |
333 | goto err; | |
334 | } | |
335 | if (bind(sock, local->ai_addr, local->ai_addrlen) < 0) { | |
336 | fprintf(stderr,"%s: bind(%s,%s,%d): OK\n", __FUNCTION__, | |
337 | inet_strfamily(local->ai_family), uaddr, inet_getport(local)); | |
338 | goto err; | |
339 | } | |
340 | ||
341 | /* connect to peer */ | |
342 | if (getnameinfo((struct sockaddr*)peer->ai_addr, peer->ai_addrlen, | |
343 | uaddr, INET6_ADDRSTRLEN, uport, 32, | |
344 | NI_NUMERICHOST | NI_NUMERICSERV) != 0) { | |
345 | fprintf(stderr, "%s: getnameinfo: oops\n", __FUNCTION__); | |
346 | goto err; | |
347 | } | |
348 | if (connect(sock,peer->ai_addr,peer->ai_addrlen) < 0) { | |
349 | fprintf(stderr, "%s: connect(%s,%s,%s,%s): %s\n", __FUNCTION__, | |
350 | inet_strfamily(peer->ai_family), | |
351 | peer->ai_canonname, uaddr, uport, strerror(errno)); | |
352 | goto err; | |
353 | } | |
354 | ||
355 | freeaddrinfo(local); | |
356 | freeaddrinfo(peer); | |
357 | return sock; | |
358 | ||
359 | err: | |
360 | if (-1 != sock) | |
361 | closesocket(sock); | |
362 | if (local) | |
363 | freeaddrinfo(local); | |
364 | if (peer) | |
365 | freeaddrinfo(peer); | |
366 | return -1; | |
367 | } | |
368 | ||
f4c94c7c GH |
369 | /* compatibility wrapper */ |
370 | static int inet_parse(QemuOpts *opts, const char *str) | |
371 | { | |
372 | const char *optstr, *h; | |
373 | char addr[64]; | |
374 | char port[33]; | |
375 | int pos; | |
376 | ||
377 | /* parse address */ | |
378 | if (str[0] == ':') { | |
379 | /* no host given */ | |
380 | addr[0] = '\0'; | |
381 | if (1 != sscanf(str,":%32[^,]%n",port,&pos)) { | |
382 | fprintf(stderr, "%s: portonly parse error (%s)\n", | |
383 | __FUNCTION__, str); | |
384 | return -1; | |
385 | } | |
386 | } else if (str[0] == '[') { | |
387 | /* IPv6 addr */ | |
388 | if (2 != sscanf(str,"[%64[^]]]:%32[^,]%n",addr,port,&pos)) { | |
389 | fprintf(stderr, "%s: ipv6 parse error (%s)\n", | |
390 | __FUNCTION__, str); | |
391 | return -1; | |
392 | } | |
2198a62e | 393 | qemu_opt_set(opts, "ipv6", "on"); |
f4c94c7c GH |
394 | } else if (qemu_isdigit(str[0])) { |
395 | /* IPv4 addr */ | |
396 | if (2 != sscanf(str,"%64[0-9.]:%32[^,]%n",addr,port,&pos)) { | |
397 | fprintf(stderr, "%s: ipv4 parse error (%s)\n", | |
398 | __FUNCTION__, str); | |
399 | return -1; | |
400 | } | |
2198a62e | 401 | qemu_opt_set(opts, "ipv4", "on"); |
f4c94c7c GH |
402 | } else { |
403 | /* hostname */ | |
404 | if (2 != sscanf(str,"%64[^:]:%32[^,]%n",addr,port,&pos)) { | |
405 | fprintf(stderr, "%s: hostname parse error (%s)\n", | |
406 | __FUNCTION__, str); | |
407 | return -1; | |
408 | } | |
409 | } | |
410 | qemu_opt_set(opts, "host", addr); | |
411 | qemu_opt_set(opts, "port", port); | |
412 | ||
413 | /* parse options */ | |
414 | optstr = str + pos; | |
415 | h = strstr(optstr, ",to="); | |
416 | if (h) | |
417 | qemu_opt_set(opts, "to", h+4); | |
418 | if (strstr(optstr, ",ipv4")) | |
2198a62e | 419 | qemu_opt_set(opts, "ipv4", "on"); |
f4c94c7c | 420 | if (strstr(optstr, ",ipv6")) |
2198a62e | 421 | qemu_opt_set(opts, "ipv6", "on"); |
f4c94c7c GH |
422 | return 0; |
423 | } | |
424 | ||
e5bc776f GH |
425 | int inet_listen(const char *str, char *ostr, int olen, |
426 | int socktype, int port_offset) | |
427 | { | |
428 | QemuOpts *opts; | |
429 | char *optstr; | |
430 | int sock = -1; | |
431 | ||
432 | opts = qemu_opts_create(&dummy_opts, NULL, 0); | |
433 | if (inet_parse(opts, str) == 0) { | |
434 | sock = inet_listen_opts(opts, port_offset); | |
435 | if (sock != -1 && ostr) { | |
436 | optstr = strchr(str, ','); | |
437 | if (qemu_opt_get_bool(opts, "ipv6", 0)) { | |
438 | snprintf(ostr, olen, "[%s]:%s%s", | |
439 | qemu_opt_get(opts, "host"), | |
440 | qemu_opt_get(opts, "port"), | |
441 | optstr ? optstr : ""); | |
442 | } else { | |
443 | snprintf(ostr, olen, "%s:%s%s", | |
444 | qemu_opt_get(opts, "host"), | |
445 | qemu_opt_get(opts, "port"), | |
446 | optstr ? optstr : ""); | |
447 | } | |
448 | } | |
449 | } | |
450 | qemu_opts_del(opts); | |
451 | return sock; | |
452 | } | |
453 | ||
f4c94c7c GH |
454 | int inet_connect(const char *str, int socktype) |
455 | { | |
456 | QemuOpts *opts; | |
457 | int sock = -1; | |
458 | ||
459 | opts = qemu_opts_create(&dummy_opts, NULL, 0); | |
460 | if (inet_parse(opts, str) == 0) | |
461 | sock = inet_connect_opts(opts); | |
462 | qemu_opts_del(opts); | |
463 | return sock; | |
464 | } | |
465 | ||
d247d25f AL |
466 | #ifndef _WIN32 |
467 | ||
62b6adfb | 468 | int unix_listen_opts(QemuOpts *opts) |
d247d25f AL |
469 | { |
470 | struct sockaddr_un un; | |
62b6adfb GH |
471 | const char *path = qemu_opt_get(opts, "path"); |
472 | int sock, fd; | |
d247d25f | 473 | |
40ff6d7e | 474 | sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0); |
d247d25f | 475 | if (sock < 0) { |
39b6efc8 | 476 | perror("socket(unix)"); |
477 | return -1; | |
d247d25f AL |
478 | } |
479 | ||
d247d25f AL |
480 | memset(&un, 0, sizeof(un)); |
481 | un.sun_family = AF_UNIX; | |
482 | if (path && strlen(path)) { | |
483 | snprintf(un.sun_path, sizeof(un.sun_path), "%s", path); | |
484 | } else { | |
485 | char *tmpdir = getenv("TMPDIR"); | |
486 | snprintf(un.sun_path, sizeof(un.sun_path), "%s/qemu-socket-XXXXXX", | |
487 | tmpdir ? tmpdir : "/tmp"); | |
488 | /* | |
489 | * This dummy fd usage silences the mktemp() unsecure warning. | |
490 | * Using mkstemp() doesn't make things more secure here | |
491 | * though. bind() complains about existing files, so we have | |
492 | * to unlink first and thus re-open the race window. The | |
493 | * worst case possible is bind() failing, i.e. a DoS attack. | |
494 | */ | |
495 | fd = mkstemp(un.sun_path); close(fd); | |
62b6adfb | 496 | qemu_opt_set(opts, "path", un.sun_path); |
d247d25f | 497 | } |
d247d25f AL |
498 | |
499 | unlink(un.sun_path); | |
500 | if (bind(sock, (struct sockaddr*) &un, sizeof(un)) < 0) { | |
501 | fprintf(stderr, "bind(unix:%s): %s\n", un.sun_path, strerror(errno)); | |
502 | goto err; | |
503 | } | |
504 | if (listen(sock, 1) < 0) { | |
505 | fprintf(stderr, "listen(unix:%s): %s\n", un.sun_path, strerror(errno)); | |
506 | goto err; | |
507 | } | |
508 | ||
d247d25f AL |
509 | return sock; |
510 | ||
511 | err: | |
d247d25f AL |
512 | closesocket(sock); |
513 | return -1; | |
514 | } | |
515 | ||
2af2bf67 | 516 | int unix_connect_opts(QemuOpts *opts) |
d247d25f AL |
517 | { |
518 | struct sockaddr_un un; | |
2af2bf67 | 519 | const char *path = qemu_opt_get(opts, "path"); |
d247d25f AL |
520 | int sock; |
521 | ||
2af2bf67 GH |
522 | if (NULL == path) { |
523 | fprintf(stderr, "unix connect: no path specified\n"); | |
524 | return -1; | |
525 | } | |
526 | ||
40ff6d7e | 527 | sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0); |
d247d25f | 528 | if (sock < 0) { |
39b6efc8 | 529 | perror("socket(unix)"); |
530 | return -1; | |
d247d25f AL |
531 | } |
532 | ||
533 | memset(&un, 0, sizeof(un)); | |
534 | un.sun_family = AF_UNIX; | |
535 | snprintf(un.sun_path, sizeof(un.sun_path), "%s", path); | |
536 | if (connect(sock, (struct sockaddr*) &un, sizeof(un)) < 0) { | |
537 | fprintf(stderr, "connect(unix:%s): %s\n", path, strerror(errno)); | |
9d947472 | 538 | close(sock); |
d247d25f AL |
539 | return -1; |
540 | } | |
541 | ||
d247d25f AL |
542 | return sock; |
543 | } | |
544 | ||
2af2bf67 | 545 | /* compatibility wrapper */ |
62b6adfb GH |
546 | int unix_listen(const char *str, char *ostr, int olen) |
547 | { | |
548 | QemuOpts *opts; | |
549 | char *path, *optstr; | |
550 | int sock, len; | |
551 | ||
552 | opts = qemu_opts_create(&dummy_opts, NULL, 0); | |
553 | ||
554 | optstr = strchr(str, ','); | |
555 | if (optstr) { | |
556 | len = optstr - str; | |
557 | if (len) { | |
7267c094 | 558 | path = g_malloc(len+1); |
62b6adfb GH |
559 | snprintf(path, len+1, "%.*s", len, str); |
560 | qemu_opt_set(opts, "path", path); | |
7267c094 | 561 | g_free(path); |
62b6adfb GH |
562 | } |
563 | } else { | |
564 | qemu_opt_set(opts, "path", str); | |
565 | } | |
566 | ||
567 | sock = unix_listen_opts(opts); | |
568 | ||
569 | if (sock != -1 && ostr) | |
570 | snprintf(ostr, olen, "%s%s", qemu_opt_get(opts, "path"), optstr ? optstr : ""); | |
571 | qemu_opts_del(opts); | |
572 | return sock; | |
573 | } | |
574 | ||
2af2bf67 GH |
575 | int unix_connect(const char *path) |
576 | { | |
577 | QemuOpts *opts; | |
578 | int sock; | |
579 | ||
580 | opts = qemu_opts_create(&dummy_opts, NULL, 0); | |
581 | qemu_opt_set(opts, "path", path); | |
582 | sock = unix_connect_opts(opts); | |
583 | qemu_opts_del(opts); | |
584 | return sock; | |
585 | } | |
586 | ||
d247d25f AL |
587 | #else |
588 | ||
108af7b9 GH |
589 | int unix_listen_opts(QemuOpts *opts) |
590 | { | |
591 | fprintf(stderr, "unix sockets are not available on windows\n"); | |
b82eac92 | 592 | errno = ENOTSUP; |
108af7b9 GH |
593 | return -1; |
594 | } | |
595 | ||
596 | int unix_connect_opts(QemuOpts *opts) | |
597 | { | |
598 | fprintf(stderr, "unix sockets are not available on windows\n"); | |
b82eac92 | 599 | errno = ENOTSUP; |
108af7b9 GH |
600 | return -1; |
601 | } | |
602 | ||
d247d25f AL |
603 | int unix_listen(const char *path, char *ostr, int olen) |
604 | { | |
605 | fprintf(stderr, "unix sockets are not available on windows\n"); | |
b82eac92 | 606 | errno = ENOTSUP; |
d247d25f AL |
607 | return -1; |
608 | } | |
609 | ||
610 | int unix_connect(const char *path) | |
611 | { | |
612 | fprintf(stderr, "unix sockets are not available on windows\n"); | |
b82eac92 | 613 | errno = ENOTSUP; |
d247d25f AL |
614 | return -1; |
615 | } | |
616 | ||
617 | #endif | |
0706a4dc PB |
618 | |
619 | #ifdef _WIN32 | |
620 | static void socket_cleanup(void) | |
621 | { | |
622 | WSACleanup(); | |
623 | } | |
624 | #endif | |
625 | ||
626 | int socket_init(void) | |
627 | { | |
628 | #ifdef _WIN32 | |
629 | WSADATA Data; | |
630 | int ret, err; | |
631 | ||
632 | ret = WSAStartup(MAKEWORD(2,2), &Data); | |
633 | if (ret != 0) { | |
634 | err = WSAGetLastError(); | |
635 | fprintf(stderr, "WSAStartup: %d\n", err); | |
636 | return -1; | |
637 | } | |
638 | atexit(socket_cleanup); | |
639 | #endif | |
640 | return 0; | |
641 | } |