d3372da9 |
1 | /* |
2 | * Dolda Connect - Modular multiuser Direct Connect-style client |
3 | * Copyright (C) 2004 Fredrik Tolf (fredrik@dolda2000.com) |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify |
6 | * it under the terms of the GNU General Public License as published by |
7 | * the Free Software Foundation; either version 2 of the License, or |
8 | * (at your option) any later version. |
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 | * |
15 | * You should have received a copy of the GNU General Public License |
16 | * along with this program; if not, write to the Free Software |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
18 | */ |
19 | /* XXX: Implement SOCKS proxyability */ |
20 | |
21 | #ifdef HAVE_CONFIG_H |
22 | #include <config.h> |
23 | #endif |
24 | #include <string.h> |
25 | #include <stdlib.h> |
26 | #include <unistd.h> |
27 | #include <fcntl.h> |
28 | #include <sys/ioctl.h> |
29 | #include <sys/socket.h> |
30 | #include <sys/un.h> |
31 | #include <sys/poll.h> |
32 | #include <arpa/inet.h> |
33 | #include <netinet/in.h> |
34 | #include <netdb.h> |
35 | #include <sys/signal.h> |
d3372da9 |
36 | #ifdef HAVE_LINUX_SOCKIOS_H |
37 | #include <linux/sockios.h> |
38 | #endif |
39 | #include <errno.h> |
40 | #include <net/if.h> |
41 | |
42 | #include "conf.h" |
43 | #include "net.h" |
44 | #include "module.h" |
45 | #include "log.h" |
46 | #include "utils.h" |
47 | #include "sysevents.h" |
48 | |
49 | static struct configvar myvars[] = |
50 | { |
51 | /* 0 = Direct mode, 1 = Passive mode, 2 = SOCKS proxy */ |
52 | {CONF_VAR_INT, "mode", {.num = 0}}, |
347d6d76 |
53 | {CONF_VAR_BOOL, "reuseaddr", {.num = 0}}, |
d3372da9 |
54 | /* Only for direct mode */ |
55 | {CONF_VAR_IPV4, "visibleipv4", {.ipv4 = {0}}}, |
56 | {CONF_VAR_STRING, "publicif", {.str = L""}}, |
b020fb3d |
57 | /* Diffserv should be supported on IPv4, too, but I don't know the |
58 | * API to do that. */ |
59 | {CONF_VAR_INT, "diffserv-mincost", {.num = 0}}, |
60 | {CONF_VAR_INT, "diffserv-maxrel", {.num = 0}}, |
61 | {CONF_VAR_INT, "diffserv-maxtp", {.num = 0}}, |
62 | {CONF_VAR_INT, "diffserv-mindelay", {.num = 0}}, |
d3372da9 |
63 | {CONF_VAR_END} |
64 | }; |
65 | |
66 | static struct socket *sockets = NULL; |
67 | int numsocks = 0; |
68 | |
69 | /* XXX: Get autoconf for all this... */ |
70 | int getpublicaddr(int af, struct sockaddr **addr, socklen_t *lenbuf) |
71 | { |
72 | struct sockaddr_in *ipv4; |
73 | struct configvar *var; |
74 | void *bufend; |
75 | int sock; |
76 | struct ifconf conf; |
77 | struct ifreq *ifr, req; |
78 | char *pif; |
79 | |
80 | if(af == AF_INET) |
81 | { |
82 | var = confgetvar("net", "visibleipv4"); |
83 | if(var->val.ipv4.s_addr != 0) |
84 | { |
85 | ipv4 = smalloc(sizeof(*ipv4)); |
86 | ipv4->sin_family = AF_INET; |
87 | ipv4->sin_addr.s_addr = var->val.ipv4.s_addr; |
88 | *addr = (struct sockaddr *)ipv4; |
89 | *lenbuf = sizeof(*ipv4); |
90 | return(0); |
91 | } |
bcb73bb3 |
92 | if((pif = icswcstombs(confgetstr("net", "publicif"), NULL, NULL)) == NULL) |
d3372da9 |
93 | { |
94 | flog(LOG_ERR, "could not convert net.publicif into local charset: %s", strerror(errno)); |
95 | return(-1); |
96 | } |
6fb0c6ac |
97 | if(!strcmp(pif, "")) |
98 | return(1); |
d3372da9 |
99 | if((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) |
100 | return(-1); |
101 | conf.ifc_buf = smalloc(conf.ifc_len = 65536); |
102 | if(ioctl(sock, SIOCGIFCONF, &conf) < 0) |
103 | { |
104 | free(conf.ifc_buf); |
105 | close(sock); |
106 | return(-1); |
107 | } |
108 | bufend = ((char *)conf.ifc_buf) + conf.ifc_len; |
109 | ipv4 = NULL; |
110 | for(ifr = conf.ifc_ifcu.ifcu_req; (void *)ifr < bufend; ifr++) |
111 | { |
1315d02a |
112 | if(strcmp(ifr->ifr_name, pif)) |
6fb0c6ac |
113 | continue; |
d3372da9 |
114 | memset(&req, 0, sizeof(req)); |
115 | memcpy(req.ifr_name, ifr->ifr_name, sizeof(ifr->ifr_name)); |
116 | if(ioctl(sock, SIOCGIFFLAGS, &req) < 0) |
6fb0c6ac |
117 | break; |
118 | if(!(req.ifr_flags & IFF_UP)) |
d3372da9 |
119 | { |
6fb0c6ac |
120 | flog(LOG_WARNING, "public interface is down"); |
121 | break; |
d3372da9 |
122 | } |
6fb0c6ac |
123 | if(ifr->ifr_addr.sa_family != AF_INET) |
d3372da9 |
124 | { |
6fb0c6ac |
125 | flog(LOG_WARNING, "address of the public interface is not AF_INET"); |
126 | break; |
d3372da9 |
127 | } |
6fb0c6ac |
128 | ipv4 = smalloc(sizeof(*ipv4)); |
129 | memcpy(ipv4, &ifr->ifr_addr, sizeof(ifr->ifr_addr)); |
130 | break; |
d3372da9 |
131 | } |
bcb73bb3 |
132 | free(conf.ifc_buf); |
d3372da9 |
133 | close(sock); |
134 | if(ipv4 != NULL) |
135 | { |
136 | *addr = (struct sockaddr *)ipv4; |
137 | *lenbuf = sizeof(*ipv4); |
138 | return(0); |
139 | } |
140 | errno = ENETDOWN; |
141 | return(-1); |
142 | } |
6fb0c6ac |
143 | return(1); |
d3372da9 |
144 | } |
145 | |
146 | static struct socket *newsock(int type) |
147 | { |
148 | struct socket *new; |
149 | |
150 | new = smalloc(sizeof(*new)); |
151 | new->refcount = 2; |
152 | new->fd = -1; |
153 | new->isrealsocket = 1; |
154 | new->family = -1; |
155 | new->tos = 0; |
156 | new->type = type; |
157 | new->state = -1; |
158 | new->ignread = 0; |
159 | new->close = 0; |
160 | new->remote = NULL; |
161 | new->remotelen = 0; |
162 | switch(type) |
163 | { |
164 | case SOCK_STREAM: |
165 | new->outbuf.s.buf = NULL; |
166 | new->outbuf.s.bufsize = 0; |
167 | new->outbuf.s.datasize = 0; |
168 | new->inbuf.s.buf = NULL; |
169 | new->inbuf.s.bufsize = 0; |
170 | new->inbuf.s.datasize = 0; |
171 | break; |
172 | case SOCK_DGRAM: |
173 | new->outbuf.d.f = new->outbuf.d.l = NULL; |
174 | new->inbuf.d.f = new->inbuf.d.l = NULL; |
175 | break; |
176 | } |
177 | new->conncb = NULL; |
178 | new->errcb = NULL; |
179 | new->readcb = NULL; |
180 | new->writecb = NULL; |
181 | new->acceptcb = NULL; |
182 | new->next = sockets; |
183 | new->prev = NULL; |
184 | if(sockets != NULL) |
185 | sockets->prev = new; |
186 | sockets = new; |
187 | numsocks++; |
188 | return(new); |
189 | } |
190 | |
191 | static struct socket *mksock(int domain, int type) |
192 | { |
193 | int fd; |
194 | struct socket *new; |
195 | |
196 | if((fd = socket(domain, type, 0)) < 0) |
197 | { |
198 | flog(LOG_CRIT, "could not create socket: %s", strerror(errno)); |
199 | return(NULL); |
200 | } |
201 | new = newsock(type); |
202 | new->fd = fd; |
203 | new->family = domain; |
204 | fcntl(fd, F_SETFL, fcntl(fd, F_GETFL) | O_NONBLOCK); |
205 | return(new); |
206 | } |
207 | |
208 | struct socket *wrapsock(int fd) |
209 | { |
210 | struct socket *new; |
211 | |
212 | new = newsock(SOCK_STREAM); |
213 | new->fd = fd; |
214 | new->state = SOCK_EST; |
215 | new->isrealsocket = 0; |
216 | fcntl(fd, F_SETFL, fcntl(fd, F_GETFL) | O_NONBLOCK); |
217 | return(new); |
218 | } |
219 | |
220 | static void unlinksock(struct socket *sk) |
221 | { |
222 | if(sk->prev != NULL) |
223 | sk->prev->next = sk->next; |
224 | if(sk->next != NULL) |
225 | sk->next->prev = sk->prev; |
226 | if(sk == sockets) |
227 | sockets = sk->next; |
228 | putsock(sk); |
229 | numsocks--; |
230 | } |
231 | |
232 | void getsock(struct socket *sk) |
233 | { |
234 | sk->refcount++; |
235 | } |
236 | |
237 | void putsock(struct socket *sk) |
238 | { |
239 | struct dgrambuf *buf; |
240 | |
241 | if(--(sk->refcount) == 0) |
242 | { |
243 | switch(sk->type) |
244 | { |
245 | case SOCK_STREAM: |
246 | if(sk->outbuf.s.buf != NULL) |
247 | free(sk->outbuf.s.buf); |
248 | if(sk->inbuf.s.buf != NULL) |
249 | free(sk->inbuf.s.buf); |
250 | break; |
251 | case SOCK_DGRAM: |
252 | while((buf = sk->outbuf.d.f) != NULL) |
253 | { |
254 | sk->outbuf.d.f = buf->next; |
255 | free(buf->data); |
256 | free(buf); |
257 | } |
258 | while((buf = sk->inbuf.d.f) != NULL) |
259 | { |
260 | sk->inbuf.d.f = buf->next; |
261 | free(buf->data); |
262 | free(buf); |
263 | } |
264 | break; |
265 | } |
266 | if(sk->fd >= 0) |
267 | close(sk->fd); |
268 | if(sk->remote != NULL) |
269 | free(sk->remote); |
270 | free(sk); |
271 | } |
272 | } |
273 | |
336539c2 |
274 | void sockpushdata(struct socket *sk, void *buf, size_t size) |
275 | { |
276 | switch(sk->type) |
277 | { |
278 | case SOCK_STREAM: |
279 | sizebuf(&sk->inbuf.s.buf, &sk->inbuf.s.bufsize, sk->inbuf.s.datasize + size, 1, 1); |
280 | memmove(sk->inbuf.s.buf + size, sk->inbuf.s.buf, sk->inbuf.s.datasize); |
281 | memcpy(sk->inbuf.s.buf, buf, size); |
282 | sk->inbuf.s.datasize += size; |
283 | break; |
284 | case SOCK_DGRAM: |
285 | /* XXX */ |
286 | break; |
287 | } |
288 | return; |
289 | } |
290 | |
d3372da9 |
291 | void *sockgetinbuf(struct socket *sk, size_t *size) |
292 | { |
293 | void *buf; |
294 | struct dgrambuf *dbuf; |
295 | |
296 | switch(sk->type) |
297 | { |
298 | case SOCK_STREAM: |
299 | if((sk->inbuf.s.buf == NULL) || (sk->inbuf.s.datasize == 0)) |
300 | { |
301 | *size = 0; |
302 | return(NULL); |
303 | } |
304 | buf = sk->inbuf.s.buf; |
305 | *size = sk->inbuf.s.datasize; |
306 | sk->inbuf.s.buf = NULL; |
307 | sk->inbuf.s.bufsize = sk->inbuf.s.datasize = 0; |
308 | return(buf); |
309 | case SOCK_DGRAM: |
310 | if((dbuf = sk->inbuf.d.f) == NULL) |
311 | return(NULL); |
312 | sk->inbuf.d.f = dbuf->next; |
313 | if(dbuf->next == NULL) |
314 | sk->inbuf.d.l = NULL; |
315 | buf = dbuf->data; |
316 | *size = dbuf->size; |
317 | free(dbuf->addr); |
318 | free(dbuf); |
319 | return(buf); |
320 | } |
321 | return(NULL); |
322 | } |
323 | |
324 | static void sockrecv(struct socket *sk) |
325 | { |
326 | int ret, inq; |
327 | struct dgrambuf *dbuf; |
328 | |
329 | switch(sk->type) |
330 | { |
331 | case SOCK_STREAM: |
332 | #if defined(HAVE_LINUX_SOCKIOS_H) && defined(SIOCINQ) |
333 | /* SIOCINQ is Linux-specific AFAIK, but I really have no idea |
334 | * how to read the inqueue size on other OSs */ |
335 | if(ioctl(sk->fd, SIOCINQ, &inq)) |
336 | { |
337 | /* I don't really know what could go wrong here, so let's |
338 | * assume it's transient. */ |
339 | flog(LOG_WARNING, "SIOCINQ return %s on socket %i, falling back to 2048 bytes", strerror(errno), sk->fd); |
340 | inq = 2048; |
341 | } |
342 | #else |
343 | inq = 2048; |
344 | #endif |
345 | if(inq > 65536) |
346 | inq = 65536; |
347 | sizebuf(&sk->inbuf.s.buf, &sk->inbuf.s.bufsize, sk->inbuf.s.datasize + inq, 1, 1); |
348 | ret = read(sk->fd, sk->inbuf.s.buf + sk->inbuf.s.datasize, inq); |
349 | if(ret < 0) |
350 | { |
351 | if((errno == EINTR) || (errno == EAGAIN)) |
352 | return; |
353 | if(sk->errcb != NULL) |
354 | sk->errcb(sk, errno, sk->data); |
355 | closesock(sk); |
356 | return; |
357 | } |
358 | if(ret == 0) |
359 | { |
360 | if(sk->errcb != NULL) |
361 | sk->errcb(sk, 0, sk->data); |
362 | closesock(sk); |
363 | return; |
364 | } |
365 | sk->inbuf.s.datasize += ret; |
366 | if(sk->readcb != NULL) |
367 | sk->readcb(sk, sk->data); |
368 | break; |
369 | case SOCK_DGRAM: |
370 | if(ioctl(sk->fd, SIOCINQ, &inq)) |
371 | { |
372 | /* I don't really know what could go wrong here, so let's |
373 | * assume it's transient. */ |
374 | flog(LOG_WARNING, "SIOCINQ return %s on socket %i", strerror(errno), sk->fd); |
375 | return; |
376 | } |
377 | dbuf = smalloc(sizeof(*dbuf)); |
378 | dbuf->data = smalloc(inq); |
379 | dbuf->addr = smalloc(dbuf->addrlen = sizeof(struct sockaddr_storage)); |
380 | ret = recvfrom(sk->fd, dbuf->data, inq, 0, dbuf->addr, &dbuf->addrlen); |
381 | if(ret < 0) |
382 | { |
383 | free(dbuf->addr); |
384 | free(dbuf->data); |
385 | free(dbuf); |
386 | if((errno == EINTR) || (errno == EAGAIN)) |
387 | return; |
388 | if(sk->errcb != NULL) |
389 | sk->errcb(sk, errno, sk->data); |
390 | closesock(sk); |
391 | return; |
392 | } |
393 | /* On UDP/IPv[46], ret == 0 doesn't mean EOF (since UDP can't |
394 | * have EOF), but rather an empty packet. I don't know if any |
395 | * other potential DGRAM protocols might have an EOF |
396 | * condition, so let's play safe. */ |
397 | if(ret == 0) |
398 | { |
399 | free(dbuf->addr); |
400 | free(dbuf->data); |
401 | free(dbuf); |
402 | if(!((sk->family == AF_INET) || (sk->family == AF_INET6))) |
403 | { |
404 | if(sk->errcb != NULL) |
405 | sk->errcb(sk, 0, sk->data); |
406 | closesock(sk); |
407 | } |
408 | return; |
409 | } |
410 | dbuf->addr = srealloc(dbuf->addr, dbuf->addrlen); |
411 | dbuf->data = srealloc(dbuf->data, dbuf->size = ret); |
412 | dbuf->next = NULL; |
413 | if(sk->inbuf.d.l != NULL) |
414 | sk->inbuf.d.l->next = dbuf; |
415 | else |
416 | sk->inbuf.d.f = dbuf; |
417 | sk->inbuf.d.l = dbuf; |
418 | if(sk->readcb != NULL) |
419 | sk->readcb(sk, sk->data); |
420 | break; |
421 | } |
422 | } |
423 | |
424 | static void sockflush(struct socket *sk) |
425 | { |
426 | int ret; |
427 | struct dgrambuf *dbuf; |
428 | |
429 | switch(sk->type) |
430 | { |
431 | case SOCK_STREAM: |
432 | if(sk->isrealsocket) |
433 | ret = send(sk->fd, sk->outbuf.s.buf, sk->outbuf.s.datasize, MSG_DONTWAIT | MSG_NOSIGNAL); |
434 | else |
435 | ret = write(sk->fd, sk->outbuf.s.buf, sk->outbuf.s.datasize); |
436 | if(ret < 0) |
437 | { |
438 | /* For now, assume transient error, since |
439 | * the socket is polled for errors */ |
440 | break; |
441 | } |
442 | if(ret > 0) |
443 | { |
444 | memmove(sk->outbuf.s.buf, ((char *)sk->outbuf.s.buf) + ret, sk->outbuf.s.datasize -= ret); |
445 | if(sk->writecb != NULL) |
446 | sk->writecb(sk, sk->data); |
447 | } |
448 | break; |
449 | case SOCK_DGRAM: |
450 | dbuf = sk->outbuf.d.f; |
451 | if((sk->outbuf.d.f = dbuf->next) == NULL) |
452 | sk->outbuf.d.l = NULL; |
453 | sendto(sk->fd, dbuf->data, dbuf->size, MSG_DONTWAIT | MSG_NOSIGNAL, dbuf->addr, dbuf->addrlen); |
454 | free(dbuf->data); |
455 | free(dbuf->addr); |
456 | free(dbuf); |
457 | if(sk->writecb != NULL) |
458 | sk->writecb(sk, sk->data); |
459 | break; |
460 | } |
461 | } |
462 | |
463 | void closesock(struct socket *sk) |
464 | { |
465 | sk->state = SOCK_STL; |
466 | close(sk->fd); |
467 | sk->fd = -1; |
468 | sk->close = 0; |
469 | } |
470 | |
471 | void sockqueue(struct socket *sk, void *data, size_t size) |
472 | { |
473 | struct dgrambuf *new; |
474 | |
475 | if(sk->state == SOCK_STL) |
476 | return; |
477 | switch(sk->type) |
478 | { |
479 | case SOCK_STREAM: |
480 | sizebuf(&(sk->outbuf.s.buf), &(sk->outbuf.s.bufsize), sk->outbuf.s.datasize + size, 1, 1); |
481 | memcpy(sk->outbuf.s.buf + sk->outbuf.s.datasize, data, size); |
482 | sk->outbuf.s.datasize += size; |
483 | break; |
484 | case SOCK_DGRAM: |
485 | if(sk->remote == NULL) |
486 | return; |
487 | new = smalloc(sizeof(*new)); |
488 | new->next = NULL; |
489 | memcpy(new->data = smalloc(size), data, new->size = size); |
490 | memcpy(new->addr = smalloc(sk->remotelen), sk->remote, new->addrlen = sk->remotelen); |
491 | if(sk->outbuf.d.l == NULL) |
492 | { |
493 | sk->outbuf.d.l = sk->outbuf.d.f = new; |
494 | } else { |
495 | sk->outbuf.d.l->next = new; |
496 | sk->outbuf.d.l = new; |
497 | } |
498 | break; |
499 | } |
500 | } |
501 | |
502 | size_t sockgetdatalen(struct socket *sk) |
503 | { |
504 | struct dgrambuf *b; |
505 | size_t ret; |
506 | |
507 | switch(sk->type) |
508 | { |
509 | case SOCK_STREAM: |
510 | ret = sk->inbuf.s.datasize; |
511 | break; |
512 | case SOCK_DGRAM: |
513 | ret = 0; |
514 | for(b = sk->inbuf.d.f; b != NULL; b = b->next) |
515 | ret += b->size; |
516 | break; |
517 | } |
518 | return(ret); |
519 | } |
520 | |
521 | size_t sockqueuesize(struct socket *sk) |
522 | { |
523 | struct dgrambuf *b; |
524 | size_t ret; |
525 | |
526 | switch(sk->type) |
527 | { |
528 | case SOCK_STREAM: |
529 | ret = sk->outbuf.s.datasize; |
530 | break; |
531 | case SOCK_DGRAM: |
532 | ret = 0; |
533 | for(b = sk->outbuf.d.f; b != NULL; b = b->next) |
534 | ret += b->size; |
535 | break; |
536 | } |
537 | return(ret); |
538 | } |
539 | |
d3372da9 |
540 | /* |
541 | * The difference between netcslisten() and netcslistenlocal() is that |
542 | * netcslistenlocal() always listens on the local host, instead of |
543 | * following proxy/passive mode directions. It is suitable for eg. the |
544 | * UI channel, while the file sharing networks should, naturally, use |
545 | * netcslisten() instead. |
546 | */ |
547 | |
548 | struct socket *netcslistenlocal(int type, struct sockaddr *name, socklen_t namelen, void (*func)(struct socket *, struct socket *, void *), void *data) |
549 | { |
550 | struct socket *sk; |
66c517d2 |
551 | int intbuf; |
d3372da9 |
552 | |
553 | /* I don't know if this is actually correct (it probably isn't), |
554 | * but since, at on least Linux systems, PF_* are specifically |
555 | * #define'd to their AF_* counterparts, it allows for a severely |
556 | * smoother implementation. If it breaks something on your |
557 | * platform, please tell me so. |
558 | */ |
559 | if((sk = mksock(name->sa_family, type)) == NULL) |
560 | return(NULL); |
561 | sk->state = SOCK_LST; |
687b2ee2 |
562 | if(confgetint("net", "reuseaddr")) |
563 | { |
564 | intbuf = 1; |
565 | setsockopt(sk->fd, SOL_SOCKET, SO_REUSEADDR, &intbuf, sizeof(intbuf)); |
566 | } |
d3372da9 |
567 | if(bind(sk->fd, name, namelen) < 0) |
568 | { |
569 | putsock(sk); |
570 | return(NULL); |
571 | } |
572 | if(listen(sk->fd, 16) < 0) |
573 | { |
574 | putsock(sk); |
575 | return(NULL); |
576 | } |
577 | sk->acceptcb = func; |
578 | sk->data = data; |
579 | return(sk); |
580 | } |
581 | |
c23acc61 |
582 | struct socket *netcslisten(int type, struct sockaddr *name, socklen_t namelen, void (*func)(struct socket *, struct socket *, void *), void *data) |
583 | { |
584 | if(confgetint("net", "mode") == 1) |
585 | { |
586 | errno = EOPNOTSUPP; |
587 | return(NULL); |
588 | } |
c23acc61 |
589 | if(confgetint("net", "mode") == 0) |
590 | return(netcslistenlocal(type, name, namelen, func, data)); |
591 | errno = EOPNOTSUPP; |
592 | return(NULL); |
593 | } |
594 | |
0a1bc5b1 |
595 | struct socket *netcstcplisten(int port, int local, void (*func)(struct socket *, struct socket *, void *), void *data) |
596 | { |
597 | struct sockaddr_in addr; |
598 | #ifdef HAVE_IPV6 |
599 | struct sockaddr_in6 addr6; |
600 | #endif |
601 | struct socket *(*csfunc)(int, struct sockaddr *, socklen_t, void (*)(struct socket *, struct socket *, void *), void *); |
602 | struct socket *ret; |
603 | |
604 | if(local) |
605 | csfunc = netcslistenlocal; |
606 | else |
607 | csfunc = netcslisten; |
608 | #ifdef HAVE_IPV6 |
609 | memset(&addr6, 0, sizeof(addr6)); |
610 | addr6.sin6_family = AF_INET6; |
611 | addr6.sin6_port = htons(port); |
612 | addr6.sin6_addr = in6addr_any; |
613 | if((ret = csfunc(SOCK_STREAM, (struct sockaddr *)&addr6, sizeof(addr6), func, data)) != NULL) |
614 | return(ret); |
615 | if((ret == NULL) && (errno != EAFNOSUPPORT)) |
616 | return(NULL); |
617 | #endif |
618 | memset(&addr, 0, sizeof(addr)); |
619 | addr.sin_family = AF_INET; |
620 | addr.sin_port = htons(port); |
621 | return(csfunc(SOCK_STREAM, (struct sockaddr *)&addr, sizeof(addr), func, data)); |
622 | } |
623 | |
d3372da9 |
624 | struct socket *netcsdgram(struct sockaddr *name, socklen_t namelen) |
625 | { |
626 | struct socket *sk; |
627 | int mode; |
628 | |
629 | mode = confgetint("net", "mode"); |
630 | if((mode == 0) || (mode == 1)) |
631 | { |
632 | if((sk = mksock(name->sa_family, SOCK_DGRAM)) == NULL) |
633 | return(NULL); |
634 | if(bind(sk->fd, name, namelen) < 0) |
635 | { |
636 | putsock(sk); |
637 | return(NULL); |
638 | } |
639 | sk->state = SOCK_EST; |
640 | return(sk); |
641 | } |
642 | errno = EOPNOTSUPP; |
643 | return(NULL); |
644 | } |
645 | |
646 | struct socket *netdupsock(struct socket *sk) |
647 | { |
648 | struct socket *newsk; |
649 | |
650 | newsk = newsock(sk->type); |
651 | if((newsk->fd = dup(sk->fd)) < 0) |
652 | { |
653 | flog(LOG_WARNING, "could not dup() socket: %s", strerror(errno)); |
654 | putsock(newsk); |
655 | return(NULL); |
656 | } |
657 | newsk->state = sk->state; |
658 | newsk->ignread = sk->ignread; |
659 | if(sk->remote != NULL) |
660 | memcpy(newsk->remote = smalloc(sk->remotelen), sk->remote, newsk->remotelen = sk->remotelen); |
661 | return(newsk); |
662 | } |
663 | |
664 | void netdgramconn(struct socket *sk, struct sockaddr *addr, socklen_t addrlen) |
665 | { |
666 | if(sk->remote != NULL) |
667 | free(sk->remote); |
668 | memcpy(sk->remote = smalloc(addrlen), addr, sk->remotelen = addrlen); |
669 | sk->ignread = 1; |
670 | } |
671 | |
672 | struct socket *netcsconn(struct sockaddr *addr, socklen_t addrlen, void (*func)(struct socket *, int, void *), void *data) |
673 | { |
674 | struct socket *sk; |
675 | int mode; |
676 | |
677 | mode = confgetint("net", "mode"); |
678 | if((mode == 0) || (mode == 1)) |
679 | { |
680 | if((sk = mksock(addr->sa_family, SOCK_STREAM)) == NULL) |
681 | return(NULL); |
682 | memcpy(sk->remote = smalloc(addrlen), addr, sk->remotelen = addrlen); |
683 | if(!connect(sk->fd, addr, addrlen)) |
684 | { |
685 | sk->state = SOCK_EST; |
686 | func(sk, 0, data); |
687 | return(sk); |
688 | } |
689 | if(errno == EINPROGRESS) |
690 | { |
691 | sk->state = SOCK_SYN; |
692 | sk->conncb = func; |
693 | sk->data = data; |
694 | return(sk); |
695 | } |
696 | putsock(sk); |
697 | return(NULL); |
698 | } |
699 | errno = EOPNOTSUPP; |
700 | return(NULL); |
701 | } |
702 | |
703 | int pollsocks(int timeout) |
704 | { |
705 | int i, num, ret, retlen; |
706 | int newfd; |
707 | struct pollfd *pfds; |
708 | struct socket *sk, *next, *newsk; |
709 | struct sockaddr_storage ss; |
710 | socklen_t sslen; |
711 | |
712 | pfds = smalloc(sizeof(*pfds) * (num = numsocks)); |
713 | for(i = 0, sk = sockets; i < num; sk = sk->next) |
714 | { |
715 | if(sk->state == SOCK_STL) |
716 | { |
717 | num--; |
718 | continue; |
719 | } |
720 | pfds[i].fd = sk->fd; |
721 | pfds[i].events = 0; |
722 | if(!sk->ignread) |
723 | pfds[i].events |= POLLIN; |
724 | if((sk->state == SOCK_SYN) || (sockqueuesize(sk) > 0)) |
725 | pfds[i].events |= POLLOUT; |
726 | pfds[i].revents = 0; |
727 | i++; |
728 | } |
729 | ret = poll(pfds, num, timeout); |
730 | if(ret < 0) |
731 | { |
732 | if(errno != EINTR) |
733 | { |
734 | flog(LOG_CRIT, "pollsocks: poll errored out: %s", strerror(errno)); |
735 | /* To avoid CPU hogging in case it's bad, which it |
736 | * probably is. */ |
737 | sleep(1); |
738 | } |
739 | free(pfds); |
740 | return(1); |
741 | } |
742 | for(sk = sockets; sk != NULL; sk = next) |
743 | { |
744 | next = sk->next; |
745 | for(i = 0; i < num; i++) |
746 | { |
747 | if(pfds[i].fd == sk->fd) |
748 | break; |
749 | } |
750 | if(i == num) |
751 | continue; |
752 | switch(sk->state) |
753 | { |
754 | case SOCK_LST: |
755 | if(pfds[i].revents & POLLIN) |
756 | { |
757 | sslen = sizeof(ss); |
758 | if((newfd = accept(sk->fd, (struct sockaddr *)&ss, &sslen)) < 0) |
759 | { |
760 | if(sk->errcb != NULL) |
761 | sk->errcb(sk, errno, sk->data); |
762 | } |
763 | newsk = newsock(sk->type); |
764 | newsk->fd = newfd; |
765 | newsk->family = sk->family; |
766 | newsk->state = SOCK_EST; |
767 | memcpy(newsk->remote = smalloc(sslen), &ss, sslen); |
768 | newsk->remotelen = sslen; |
769 | putsock(newsk); |
770 | if(sk->acceptcb != NULL) |
771 | sk->acceptcb(sk, newsk, sk->data); |
772 | } |
773 | if(pfds[i].revents & POLLERR) |
774 | { |
775 | retlen = sizeof(ret); |
776 | getsockopt(sk->fd, SOL_SOCKET, SO_ERROR, &ret, &retlen); |
777 | if(sk->errcb != NULL) |
778 | sk->errcb(sk, ret, sk->data); |
779 | continue; |
780 | } |
781 | break; |
782 | case SOCK_SYN: |
783 | if(pfds[i].revents & POLLERR) |
784 | { |
785 | retlen = sizeof(ret); |
786 | getsockopt(sk->fd, SOL_SOCKET, SO_ERROR, &ret, &retlen); |
787 | if(sk->conncb != NULL) |
788 | sk->conncb(sk, ret, sk->data); |
789 | closesock(sk); |
790 | continue; |
791 | } |
792 | if(pfds[i].revents & (POLLIN | POLLOUT)) |
793 | { |
794 | sk->state = SOCK_EST; |
795 | if(sk->conncb != NULL) |
796 | sk->conncb(sk, 0, sk->data); |
797 | } |
798 | break; |
799 | case SOCK_EST: |
800 | if(pfds[i].revents & POLLERR) |
801 | { |
802 | retlen = sizeof(ret); |
803 | getsockopt(sk->fd, SOL_SOCKET, SO_ERROR, &ret, &retlen); |
804 | if(sk->errcb != NULL) |
805 | sk->errcb(sk, ret, sk->data); |
806 | closesock(sk); |
807 | continue; |
808 | } |
809 | if(pfds[i].revents & POLLIN) |
810 | sockrecv(sk); |
811 | if(pfds[i].revents & POLLOUT) |
812 | { |
813 | if(sockqueuesize(sk) > 0) |
814 | sockflush(sk); |
815 | } |
816 | break; |
817 | } |
818 | if(pfds[i].revents & POLLNVAL) |
819 | { |
820 | flog(LOG_CRIT, "BUG: stale socket struct on fd %i", sk->fd); |
821 | sk->state = SOCK_STL; |
822 | unlinksock(sk); |
823 | continue; |
824 | } |
825 | if(pfds[i].revents & POLLHUP) |
826 | { |
827 | if(sk->errcb != NULL) |
828 | sk->errcb(sk, 0, sk->data); |
829 | closesock(sk); |
830 | unlinksock(sk); |
831 | continue; |
832 | } |
833 | } |
834 | free(pfds); |
835 | for(sk = sockets; sk != NULL; sk = next) |
836 | { |
837 | next = sk->next; |
838 | if(sk->refcount == 1 && (sockqueuesize(sk) == 0)) |
839 | { |
840 | unlinksock(sk); |
841 | continue; |
842 | } |
843 | if(sk->close && (sockqueuesize(sk) == 0)) |
844 | closesock(sk); |
845 | if(sk->state == SOCK_STL) |
846 | { |
847 | unlinksock(sk); |
848 | continue; |
849 | } |
850 | } |
851 | return(1); |
852 | } |
853 | |
854 | int socksettos(struct socket *sk, int tos) |
855 | { |
b020fb3d |
856 | int buf; |
857 | |
d3372da9 |
858 | if(sk->family == AF_INET) |
859 | { |
b020fb3d |
860 | switch(tos) |
861 | { |
b198bed6 |
862 | case 0: |
863 | buf = 0; |
864 | break; |
b020fb3d |
865 | case SOCK_TOS_MINCOST: |
18c1ae1d |
866 | buf = 0x02; |
b020fb3d |
867 | break; |
868 | case SOCK_TOS_MAXREL: |
18c1ae1d |
869 | buf = 0x04; |
b020fb3d |
870 | break; |
871 | case SOCK_TOS_MAXTP: |
18c1ae1d |
872 | buf = 0x08; |
b020fb3d |
873 | break; |
874 | case SOCK_TOS_MINDELAY: |
18c1ae1d |
875 | buf = 0x10; |
b020fb3d |
876 | break; |
877 | default: |
878 | flog(LOG_WARNING, "attempted to set unknown TOS value %i to IPv4 sock", tos); |
879 | return(-1); |
880 | } |
881 | if(setsockopt(sk->fd, SOL_IP, IP_TOS, &buf, sizeof(buf)) < 0) |
d3372da9 |
882 | { |
883 | flog(LOG_WARNING, "could not set sock TOS to %i: %s", tos, strerror(errno)); |
884 | return(-1); |
885 | } |
886 | return(0); |
887 | } |
b020fb3d |
888 | if(sk->family == AF_INET6) |
889 | { |
890 | switch(tos) |
891 | { |
b198bed6 |
892 | case 0: |
893 | buf = 0; |
b020fb3d |
894 | case SOCK_TOS_MINCOST: |
895 | buf = confgetint("net", "diffserv-mincost"); |
896 | break; |
897 | case SOCK_TOS_MAXREL: |
898 | buf = confgetint("net", "diffserv-maxrel"); |
899 | break; |
900 | case SOCK_TOS_MAXTP: |
901 | buf = confgetint("net", "diffserv-maxtp"); |
902 | break; |
903 | case SOCK_TOS_MINDELAY: |
904 | buf = confgetint("net", "diffserv-mindelay"); |
905 | break; |
906 | default: |
907 | flog(LOG_WARNING, "attempted to set unknown TOS value %i to IPv4 sock", tos); |
908 | return(-1); |
909 | } |
910 | /* |
911 | On Linux, the API IPv6 flow label management doesn't seem to |
912 | be entirely complete, so I guess this will have to wait. |
913 | |
914 | if(setsockopt(...) < 0) |
915 | { |
916 | flog(LOG_WARNING, "could not set sock traffic class to %i: %s", tos, strerror(errno)); |
917 | return(-1); |
918 | } |
919 | */ |
920 | return(0); |
921 | } |
d3372da9 |
922 | flog(LOG_WARNING, "could not set TOS on sock of family %i", sk->family); |
923 | return(1); |
924 | } |
925 | |
926 | struct resolvedata |
927 | { |
928 | int fd; |
929 | void (*callback)(struct sockaddr *addr, int addrlen, void *data); |
930 | void *data; |
931 | struct sockaddr_storage addr; |
932 | int addrlen; |
933 | }; |
934 | |
935 | static void resolvecb(pid_t pid, int status, struct resolvedata *data) |
936 | { |
937 | static char buf[80]; |
938 | int ret; |
939 | struct sockaddr_in *ipv4; |
940 | |
941 | if(!status) |
942 | { |
943 | if((ret = read(data->fd, buf, sizeof(buf))) != 4) |
944 | { |
945 | errno = ENONET; |
946 | data->callback(NULL, 0, data->data); |
947 | } else { |
948 | ipv4 = (struct sockaddr_in *)&data->addr; |
949 | memcpy(&ipv4->sin_addr, buf, 4); |
950 | data->callback((struct sockaddr *)ipv4, sizeof(*ipv4), data->data); |
951 | } |
952 | } else { |
953 | errno = ENONET; |
954 | data->callback(NULL, 0, data->data); |
955 | } |
956 | close(data->fd); |
957 | free(data); |
958 | } |
959 | |
960 | int netresolve(char *addr, void (*callback)(struct sockaddr *addr, int addrlen, void *data), void *data) |
961 | { |
962 | int i; |
963 | char *p; |
964 | int port; |
965 | int pfd[2]; |
966 | pid_t child; |
967 | struct resolvedata *rdata; |
968 | struct sockaddr_in ipv4; |
969 | struct hostent *he; |
970 | sigset_t sigset; |
971 | |
972 | /* IPv4 */ |
973 | port = -1; |
974 | if((p = strchr(addr, ':')) != NULL) |
975 | { |
976 | *p = 0; |
977 | port = atoi(p + 1); |
978 | } |
979 | ipv4.sin_family = AF_INET; |
980 | ipv4.sin_port = htons(port); |
981 | if(inet_aton(addr, &ipv4.sin_addr)) |
982 | { |
983 | callback((struct sockaddr *)&ipv4, sizeof(ipv4), data); |
984 | } else { |
985 | sigemptyset(&sigset); |
986 | sigaddset(&sigset, SIGCHLD); |
987 | sigprocmask(SIG_BLOCK, &sigset, NULL); |
988 | if((pipe(pfd) < 0) || ((child = fork()) < 0)) |
989 | { |
990 | sigprocmask(SIG_UNBLOCK, &sigset, NULL); |
991 | return(-1); |
992 | } |
993 | if(child == 0) |
994 | { |
995 | sigprocmask(SIG_UNBLOCK, &sigset, NULL); |
996 | for(i = 3; i < FD_SETSIZE; i++) |
997 | { |
998 | if(i != pfd[1]) |
999 | close(i); |
1000 | } |
1001 | signal(SIGALRM, SIG_DFL); |
1002 | alarm(30); |
1003 | if((he = gethostbyname(addr)) == NULL) |
1004 | exit(1); |
1005 | write(pfd[1], he->h_addr_list[0], 4); |
1006 | exit(0); |
1007 | } else { |
1008 | close(pfd[1]); |
1009 | fcntl(pfd[0], F_SETFL, fcntl(pfd[0], F_GETFL) | O_NONBLOCK); |
1010 | rdata = smalloc(sizeof(*rdata)); |
1011 | rdata->fd = pfd[0]; |
1012 | rdata->callback = callback; |
1013 | rdata->data = data; |
1014 | memcpy(&rdata->addr, &ipv4, rdata->addrlen = sizeof(ipv4)); |
1015 | childcallback(child, (void (*)(pid_t, int, void *))resolvecb, rdata); |
1016 | sigprocmask(SIG_UNBLOCK, &sigset, NULL); |
1017 | return(1); |
1018 | } |
1019 | } |
1020 | return(0); |
1021 | } |
1022 | |
1023 | int sockgetlocalname(struct socket *sk, struct sockaddr **namebuf, socklen_t *lenbuf) |
1024 | { |
1025 | socklen_t len; |
1026 | struct sockaddr_storage name; |
1027 | |
1028 | *namebuf = NULL; |
1029 | if((sk->state == SOCK_STL) || (sk->fd < 0)) |
1030 | return(-1); |
1031 | len = sizeof(name); |
1032 | if(getsockname(sk->fd, (struct sockaddr *)&name, &len) < 0) |
1033 | { |
6fb0c6ac |
1034 | flog(LOG_ERR, "BUG: alive socket with dead fd in sockgetlocalname (%s)", strerror(errno)); |
d3372da9 |
1035 | return(-1); |
1036 | } |
1037 | *namebuf = memcpy(smalloc(len), &name, len); |
1038 | *lenbuf = len; |
1039 | return(0); |
1040 | } |
1041 | |
1042 | int sockgetremotename(struct socket *sk, struct sockaddr **namebuf, socklen_t *lenbuf) |
1043 | { |
6fb0c6ac |
1044 | int ret; |
d3372da9 |
1045 | socklen_t len; |
6fb0c6ac |
1046 | struct sockaddr *name; |
d3372da9 |
1047 | |
1048 | switch(confgetint("net", "mode")) |
1049 | { |
1050 | case 0: |
1051 | *namebuf = NULL; |
1052 | if((sk->state == SOCK_STL) || (sk->fd < 0)) |
1053 | return(-1); |
6fb0c6ac |
1054 | if((ret = getpublicaddr(sk->family, &name, &len)) < 0) |
d3372da9 |
1055 | { |
6fb0c6ac |
1056 | flog(LOG_ERR, "could not get public address: %s", strerror(errno)); |
d3372da9 |
1057 | return(-1); |
1058 | } |
6fb0c6ac |
1059 | if(ret == 0) |
d3372da9 |
1060 | { |
6fb0c6ac |
1061 | *namebuf = name; |
1062 | *lenbuf = len; |
1063 | return(0); |
d3372da9 |
1064 | } |
6fb0c6ac |
1065 | if(!sockgetlocalname(sk, &name, &len)) |
1066 | { |
1067 | *namebuf = name; |
1068 | *lenbuf = len; |
1069 | return(0); |
1070 | } |
1071 | flog(LOG_ERR, "could not get remotely accessible name by any means"); |
1072 | return(-1); |
d3372da9 |
1073 | case 1: |
1074 | errno = EOPNOTSUPP; |
1075 | return(-1); |
1076 | default: |
1077 | flog(LOG_CRIT, "unknown net mode %i active", confgetint("net", "mode")); |
1078 | errno = EOPNOTSUPP; |
1079 | return(-1); |
1080 | } |
1081 | } |
1082 | |
99a28d47 |
1083 | int addreq(struct sockaddr *x, struct sockaddr *y) |
1084 | { |
1085 | struct sockaddr_un *u1, *u2; |
1086 | struct sockaddr_in *n1, *n2; |
1087 | #ifdef HAVE_IPV6 |
1088 | struct sockaddr_in6 *s1, *s2; |
1089 | #endif |
1090 | |
1091 | if(x->sa_family != y->sa_family) |
1092 | return(0); |
1093 | switch(x->sa_family) { |
1094 | case AF_UNIX: |
1095 | u1 = (struct sockaddr_un *)x; u2 = (struct sockaddr_un *)y; |
1096 | if(strncmp(u1->sun_path, u2->sun_path, sizeof(u1->sun_path))) |
1097 | return(0); |
1098 | break; |
1099 | case AF_INET: |
1100 | n1 = (struct sockaddr_in *)x; n2 = (struct sockaddr_in *)y; |
1101 | if(n1->sin_port != n2->sin_port) |
1102 | return(0); |
1103 | if(n1->sin_addr.s_addr != n2->sin_addr.s_addr) |
1104 | return(0); |
1105 | break; |
1106 | case AF_INET6: |
1107 | s1 = (struct sockaddr_in6 *)x; s2 = (struct sockaddr_in6 *)y; |
1108 | if(s1->sin6_port != s2->sin6_port) |
1109 | return(0); |
1110 | if(memcmp(s1->sin6_addr.s6_addr, s2->sin6_addr.s6_addr, sizeof(s1->sin6_addr.s6_addr))) |
1111 | return(0); |
1112 | break; |
1113 | } |
1114 | return(1); |
1115 | } |
1116 | |
d3372da9 |
1117 | char *formataddress(struct sockaddr *arg, socklen_t arglen) |
1118 | { |
1119 | struct sockaddr_un *UNIX; /* Some wise guy has #defined unix with |
1120 | * lowercase letters to 1, so I do this |
1121 | * instead. */ |
1122 | struct sockaddr_in *ipv4; |
1123 | #ifdef HAVE_IPV6 |
1124 | struct sockaddr_in6 *ipv6; |
1125 | #endif |
1126 | static char *ret = NULL; |
1127 | char buf[1024]; |
1128 | |
1129 | if(ret != NULL) |
1130 | free(ret); |
1131 | ret = NULL; |
1132 | switch(arg->sa_family) |
1133 | { |
1134 | case AF_UNIX: |
1135 | UNIX = (struct sockaddr_un *)arg; |
1136 | ret = sprintf2("%s", UNIX->sun_path); |
1137 | break; |
1138 | case AF_INET: |
1139 | ipv4 = (struct sockaddr_in *)arg; |
1140 | if(inet_ntop(AF_INET, &ipv4->sin_addr, buf, sizeof(buf)) == NULL) |
1141 | return(NULL); |
1142 | ret = sprintf2("%s:%i", buf, (int)ntohs(ipv4->sin_port)); |
1143 | break; |
1144 | #ifdef HAVE_IPV6 |
1145 | case AF_INET6: |
1146 | ipv6 = (struct sockaddr_in6 *)arg; |
1147 | if(inet_ntop(AF_INET6, &ipv6->sin6_addr, buf, sizeof(buf)) == NULL) |
1148 | return(NULL); |
fc7f7735 |
1149 | ret = sprintf2("[%s]:%i", buf, (int)ntohs(ipv6->sin6_port)); |
d3372da9 |
1150 | break; |
1151 | #endif |
1152 | default: |
1153 | errno = EPFNOSUPPORT; |
1154 | break; |
1155 | } |
1156 | return(ret); |
1157 | } |
1158 | |
1159 | #if 0 |
1160 | |
1161 | /* |
1162 | * It was very nice to use this, but it seems |
1163 | * to mess things up, so I guess it has to go... :-( |
1164 | */ |
1165 | |
1166 | static int formataddress(FILE *stream, const struct printf_info *info, const void *const *args) |
1167 | { |
1168 | struct sockaddr *arg; |
1169 | socklen_t arglen; |
1170 | struct sockaddr_un *UNIX; /* Some wise guy has #defined unix with |
1171 | * lowercase letters to 1, so I do this |
1172 | * instead. */ |
1173 | struct sockaddr_in *ipv4; |
1174 | int ret; |
1175 | |
1176 | arg = *(struct sockaddr **)(args[0]); |
1177 | arglen = *(socklen_t *)(args[1]); |
1178 | switch(arg->sa_family) |
1179 | { |
1180 | case AF_UNIX: |
1181 | UNIX = (struct sockaddr_un *)arg; |
1182 | ret = fprintf(stream, "%s", UNIX->sun_path); |
1183 | break; |
1184 | case AF_INET: |
1185 | ipv4 = (struct sockaddr_in *)arg; |
1186 | ret = fprintf(stream, "%s:%i", inet_ntoa(ipv4->sin_addr), (int)ntohs(ipv4->sin_port)); |
1187 | break; |
1188 | default: |
1189 | ret = -1; |
1190 | errno = EPFNOSUPPORT; |
1191 | break; |
1192 | } |
1193 | return(ret); |
1194 | } |
1195 | |
1196 | static int formataddress_arginfo(const struct printf_info *info, size_t n, int *argtypes) |
1197 | { |
1198 | if(n > 0) |
1199 | argtypes[0] = PA_POINTER; |
1200 | if(n > 1) |
1201 | argtypes[1] = PA_INT; /* Sources tell me that socklen_t _must_ |
1202 | * be an int, so I guess this should be |
1203 | * safe. */ |
1204 | return(2); |
1205 | } |
1206 | #endif |
1207 | |
1208 | static int init(int hup) |
1209 | { |
1210 | if(!hup) |
1211 | { |
1212 | /* |
1213 | if(register_printf_function('N', formataddress, formataddress_arginfo)) |
1214 | { |
1215 | flog(LOG_CRIT, "could not register printf handler %%N: %s", strerror(errno)); |
1216 | return(1); |
1217 | } |
1218 | */ |
1219 | } |
1220 | return(0); |
1221 | } |
1222 | |
1223 | static void terminate(void) |
1224 | { |
1225 | while(sockets != NULL) |
1226 | unlinksock(sockets); |
1227 | } |
1228 | |
1229 | static struct module me = |
1230 | { |
1231 | .name = "net", |
1232 | .conf = |
1233 | { |
1234 | .vars = myvars |
1235 | }, |
1236 | .init = init, |
1237 | .terminate = terminate |
1238 | }; |
1239 | |
1240 | MODULE(me) |