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 | } |
97 | if((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) |
98 | return(-1); |
99 | conf.ifc_buf = smalloc(conf.ifc_len = 65536); |
100 | if(ioctl(sock, SIOCGIFCONF, &conf) < 0) |
101 | { |
102 | free(conf.ifc_buf); |
103 | close(sock); |
104 | return(-1); |
105 | } |
106 | bufend = ((char *)conf.ifc_buf) + conf.ifc_len; |
107 | ipv4 = NULL; |
108 | for(ifr = conf.ifc_ifcu.ifcu_req; (void *)ifr < bufend; ifr++) |
109 | { |
110 | memset(&req, 0, sizeof(req)); |
111 | memcpy(req.ifr_name, ifr->ifr_name, sizeof(ifr->ifr_name)); |
112 | if(ioctl(sock, SIOCGIFFLAGS, &req) < 0) |
113 | { |
114 | free(conf.ifc_buf); |
115 | close(sock); |
116 | return(-1); |
117 | } |
118 | if(!(req.ifr_flags & IFF_UP)) |
119 | continue; |
120 | if(ifr->ifr_addr.sa_family == AF_INET) |
121 | { |
122 | if(ntohl(((struct sockaddr_in *)&ifr->ifr_addr)->sin_addr.s_addr) == 0x7f000001) |
123 | continue; |
124 | if(ipv4 == NULL) |
125 | { |
126 | ipv4 = smalloc(sizeof(*ipv4)); |
127 | memcpy(ipv4, &ifr->ifr_addr, sizeof(ifr->ifr_addr)); |
128 | } else { |
129 | free(ipv4); |
bcb73bb3 |
130 | free(conf.ifc_buf); |
d3372da9 |
131 | flog(LOG_WARNING, "could not locate an unambiguous interface for determining your public IP address - set net.publicif"); |
132 | errno = ENFILE; /* XXX: There's no appropriate one for this... */ |
133 | return(-1); |
134 | } |
135 | } |
136 | } |
bcb73bb3 |
137 | free(conf.ifc_buf); |
d3372da9 |
138 | close(sock); |
139 | if(ipv4 != NULL) |
140 | { |
141 | *addr = (struct sockaddr *)ipv4; |
142 | *lenbuf = sizeof(*ipv4); |
143 | return(0); |
144 | } |
145 | errno = ENETDOWN; |
146 | return(-1); |
147 | } |
148 | errno = EPFNOSUPPORT; |
149 | return(-1); |
150 | } |
151 | |
152 | static struct socket *newsock(int type) |
153 | { |
154 | struct socket *new; |
155 | |
156 | new = smalloc(sizeof(*new)); |
157 | new->refcount = 2; |
158 | new->fd = -1; |
159 | new->isrealsocket = 1; |
160 | new->family = -1; |
161 | new->tos = 0; |
162 | new->type = type; |
163 | new->state = -1; |
164 | new->ignread = 0; |
165 | new->close = 0; |
166 | new->remote = NULL; |
167 | new->remotelen = 0; |
168 | switch(type) |
169 | { |
170 | case SOCK_STREAM: |
171 | new->outbuf.s.buf = NULL; |
172 | new->outbuf.s.bufsize = 0; |
173 | new->outbuf.s.datasize = 0; |
174 | new->inbuf.s.buf = NULL; |
175 | new->inbuf.s.bufsize = 0; |
176 | new->inbuf.s.datasize = 0; |
177 | break; |
178 | case SOCK_DGRAM: |
179 | new->outbuf.d.f = new->outbuf.d.l = NULL; |
180 | new->inbuf.d.f = new->inbuf.d.l = NULL; |
181 | break; |
182 | } |
183 | new->conncb = NULL; |
184 | new->errcb = NULL; |
185 | new->readcb = NULL; |
186 | new->writecb = NULL; |
187 | new->acceptcb = NULL; |
188 | new->next = sockets; |
189 | new->prev = NULL; |
190 | if(sockets != NULL) |
191 | sockets->prev = new; |
192 | sockets = new; |
193 | numsocks++; |
194 | return(new); |
195 | } |
196 | |
197 | static struct socket *mksock(int domain, int type) |
198 | { |
199 | int fd; |
200 | struct socket *new; |
201 | |
202 | if((fd = socket(domain, type, 0)) < 0) |
203 | { |
204 | flog(LOG_CRIT, "could not create socket: %s", strerror(errno)); |
205 | return(NULL); |
206 | } |
207 | new = newsock(type); |
208 | new->fd = fd; |
209 | new->family = domain; |
210 | fcntl(fd, F_SETFL, fcntl(fd, F_GETFL) | O_NONBLOCK); |
211 | return(new); |
212 | } |
213 | |
214 | struct socket *wrapsock(int fd) |
215 | { |
216 | struct socket *new; |
217 | |
218 | new = newsock(SOCK_STREAM); |
219 | new->fd = fd; |
220 | new->state = SOCK_EST; |
221 | new->isrealsocket = 0; |
222 | fcntl(fd, F_SETFL, fcntl(fd, F_GETFL) | O_NONBLOCK); |
223 | return(new); |
224 | } |
225 | |
226 | static void unlinksock(struct socket *sk) |
227 | { |
228 | if(sk->prev != NULL) |
229 | sk->prev->next = sk->next; |
230 | if(sk->next != NULL) |
231 | sk->next->prev = sk->prev; |
232 | if(sk == sockets) |
233 | sockets = sk->next; |
234 | putsock(sk); |
235 | numsocks--; |
236 | } |
237 | |
238 | void getsock(struct socket *sk) |
239 | { |
240 | sk->refcount++; |
241 | } |
242 | |
243 | void putsock(struct socket *sk) |
244 | { |
245 | struct dgrambuf *buf; |
246 | |
247 | if(--(sk->refcount) == 0) |
248 | { |
249 | switch(sk->type) |
250 | { |
251 | case SOCK_STREAM: |
252 | if(sk->outbuf.s.buf != NULL) |
253 | free(sk->outbuf.s.buf); |
254 | if(sk->inbuf.s.buf != NULL) |
255 | free(sk->inbuf.s.buf); |
256 | break; |
257 | case SOCK_DGRAM: |
258 | while((buf = sk->outbuf.d.f) != NULL) |
259 | { |
260 | sk->outbuf.d.f = buf->next; |
261 | free(buf->data); |
262 | free(buf); |
263 | } |
264 | while((buf = sk->inbuf.d.f) != NULL) |
265 | { |
266 | sk->inbuf.d.f = buf->next; |
267 | free(buf->data); |
268 | free(buf); |
269 | } |
270 | break; |
271 | } |
272 | if(sk->fd >= 0) |
273 | close(sk->fd); |
274 | if(sk->remote != NULL) |
275 | free(sk->remote); |
276 | free(sk); |
277 | } |
278 | } |
279 | |
336539c2 |
280 | void sockpushdata(struct socket *sk, void *buf, size_t size) |
281 | { |
282 | switch(sk->type) |
283 | { |
284 | case SOCK_STREAM: |
285 | sizebuf(&sk->inbuf.s.buf, &sk->inbuf.s.bufsize, sk->inbuf.s.datasize + size, 1, 1); |
286 | memmove(sk->inbuf.s.buf + size, sk->inbuf.s.buf, sk->inbuf.s.datasize); |
287 | memcpy(sk->inbuf.s.buf, buf, size); |
288 | sk->inbuf.s.datasize += size; |
289 | break; |
290 | case SOCK_DGRAM: |
291 | /* XXX */ |
292 | break; |
293 | } |
294 | return; |
295 | } |
296 | |
d3372da9 |
297 | void *sockgetinbuf(struct socket *sk, size_t *size) |
298 | { |
299 | void *buf; |
300 | struct dgrambuf *dbuf; |
301 | |
302 | switch(sk->type) |
303 | { |
304 | case SOCK_STREAM: |
305 | if((sk->inbuf.s.buf == NULL) || (sk->inbuf.s.datasize == 0)) |
306 | { |
307 | *size = 0; |
308 | return(NULL); |
309 | } |
310 | buf = sk->inbuf.s.buf; |
311 | *size = sk->inbuf.s.datasize; |
312 | sk->inbuf.s.buf = NULL; |
313 | sk->inbuf.s.bufsize = sk->inbuf.s.datasize = 0; |
314 | return(buf); |
315 | case SOCK_DGRAM: |
316 | if((dbuf = sk->inbuf.d.f) == NULL) |
317 | return(NULL); |
318 | sk->inbuf.d.f = dbuf->next; |
319 | if(dbuf->next == NULL) |
320 | sk->inbuf.d.l = NULL; |
321 | buf = dbuf->data; |
322 | *size = dbuf->size; |
323 | free(dbuf->addr); |
324 | free(dbuf); |
325 | return(buf); |
326 | } |
327 | return(NULL); |
328 | } |
329 | |
330 | static void sockrecv(struct socket *sk) |
331 | { |
332 | int ret, inq; |
333 | struct dgrambuf *dbuf; |
334 | |
335 | switch(sk->type) |
336 | { |
337 | case SOCK_STREAM: |
338 | #if defined(HAVE_LINUX_SOCKIOS_H) && defined(SIOCINQ) |
339 | /* SIOCINQ is Linux-specific AFAIK, but I really have no idea |
340 | * how to read the inqueue size on other OSs */ |
341 | if(ioctl(sk->fd, SIOCINQ, &inq)) |
342 | { |
343 | /* I don't really know what could go wrong here, so let's |
344 | * assume it's transient. */ |
345 | flog(LOG_WARNING, "SIOCINQ return %s on socket %i, falling back to 2048 bytes", strerror(errno), sk->fd); |
346 | inq = 2048; |
347 | } |
348 | #else |
349 | inq = 2048; |
350 | #endif |
351 | if(inq > 65536) |
352 | inq = 65536; |
353 | sizebuf(&sk->inbuf.s.buf, &sk->inbuf.s.bufsize, sk->inbuf.s.datasize + inq, 1, 1); |
354 | ret = read(sk->fd, sk->inbuf.s.buf + sk->inbuf.s.datasize, inq); |
355 | if(ret < 0) |
356 | { |
357 | if((errno == EINTR) || (errno == EAGAIN)) |
358 | return; |
359 | if(sk->errcb != NULL) |
360 | sk->errcb(sk, errno, sk->data); |
361 | closesock(sk); |
362 | return; |
363 | } |
364 | if(ret == 0) |
365 | { |
366 | if(sk->errcb != NULL) |
367 | sk->errcb(sk, 0, sk->data); |
368 | closesock(sk); |
369 | return; |
370 | } |
371 | sk->inbuf.s.datasize += ret; |
372 | if(sk->readcb != NULL) |
373 | sk->readcb(sk, sk->data); |
374 | break; |
375 | case SOCK_DGRAM: |
376 | if(ioctl(sk->fd, SIOCINQ, &inq)) |
377 | { |
378 | /* I don't really know what could go wrong here, so let's |
379 | * assume it's transient. */ |
380 | flog(LOG_WARNING, "SIOCINQ return %s on socket %i", strerror(errno), sk->fd); |
381 | return; |
382 | } |
383 | dbuf = smalloc(sizeof(*dbuf)); |
384 | dbuf->data = smalloc(inq); |
385 | dbuf->addr = smalloc(dbuf->addrlen = sizeof(struct sockaddr_storage)); |
386 | ret = recvfrom(sk->fd, dbuf->data, inq, 0, dbuf->addr, &dbuf->addrlen); |
387 | if(ret < 0) |
388 | { |
389 | free(dbuf->addr); |
390 | free(dbuf->data); |
391 | free(dbuf); |
392 | if((errno == EINTR) || (errno == EAGAIN)) |
393 | return; |
394 | if(sk->errcb != NULL) |
395 | sk->errcb(sk, errno, sk->data); |
396 | closesock(sk); |
397 | return; |
398 | } |
399 | /* On UDP/IPv[46], ret == 0 doesn't mean EOF (since UDP can't |
400 | * have EOF), but rather an empty packet. I don't know if any |
401 | * other potential DGRAM protocols might have an EOF |
402 | * condition, so let's play safe. */ |
403 | if(ret == 0) |
404 | { |
405 | free(dbuf->addr); |
406 | free(dbuf->data); |
407 | free(dbuf); |
408 | if(!((sk->family == AF_INET) || (sk->family == AF_INET6))) |
409 | { |
410 | if(sk->errcb != NULL) |
411 | sk->errcb(sk, 0, sk->data); |
412 | closesock(sk); |
413 | } |
414 | return; |
415 | } |
416 | dbuf->addr = srealloc(dbuf->addr, dbuf->addrlen); |
417 | dbuf->data = srealloc(dbuf->data, dbuf->size = ret); |
418 | dbuf->next = NULL; |
419 | if(sk->inbuf.d.l != NULL) |
420 | sk->inbuf.d.l->next = dbuf; |
421 | else |
422 | sk->inbuf.d.f = dbuf; |
423 | sk->inbuf.d.l = dbuf; |
424 | if(sk->readcb != NULL) |
425 | sk->readcb(sk, sk->data); |
426 | break; |
427 | } |
428 | } |
429 | |
430 | static void sockflush(struct socket *sk) |
431 | { |
432 | int ret; |
433 | struct dgrambuf *dbuf; |
434 | |
435 | switch(sk->type) |
436 | { |
437 | case SOCK_STREAM: |
438 | if(sk->isrealsocket) |
439 | ret = send(sk->fd, sk->outbuf.s.buf, sk->outbuf.s.datasize, MSG_DONTWAIT | MSG_NOSIGNAL); |
440 | else |
441 | ret = write(sk->fd, sk->outbuf.s.buf, sk->outbuf.s.datasize); |
442 | if(ret < 0) |
443 | { |
444 | /* For now, assume transient error, since |
445 | * the socket is polled for errors */ |
446 | break; |
447 | } |
448 | if(ret > 0) |
449 | { |
450 | memmove(sk->outbuf.s.buf, ((char *)sk->outbuf.s.buf) + ret, sk->outbuf.s.datasize -= ret); |
451 | if(sk->writecb != NULL) |
452 | sk->writecb(sk, sk->data); |
453 | } |
454 | break; |
455 | case SOCK_DGRAM: |
456 | dbuf = sk->outbuf.d.f; |
457 | if((sk->outbuf.d.f = dbuf->next) == NULL) |
458 | sk->outbuf.d.l = NULL; |
459 | sendto(sk->fd, dbuf->data, dbuf->size, MSG_DONTWAIT | MSG_NOSIGNAL, dbuf->addr, dbuf->addrlen); |
460 | free(dbuf->data); |
461 | free(dbuf->addr); |
462 | free(dbuf); |
463 | if(sk->writecb != NULL) |
464 | sk->writecb(sk, sk->data); |
465 | break; |
466 | } |
467 | } |
468 | |
469 | void closesock(struct socket *sk) |
470 | { |
471 | sk->state = SOCK_STL; |
472 | close(sk->fd); |
473 | sk->fd = -1; |
474 | sk->close = 0; |
475 | } |
476 | |
477 | void sockqueue(struct socket *sk, void *data, size_t size) |
478 | { |
479 | struct dgrambuf *new; |
480 | |
481 | if(sk->state == SOCK_STL) |
482 | return; |
483 | switch(sk->type) |
484 | { |
485 | case SOCK_STREAM: |
486 | sizebuf(&(sk->outbuf.s.buf), &(sk->outbuf.s.bufsize), sk->outbuf.s.datasize + size, 1, 1); |
487 | memcpy(sk->outbuf.s.buf + sk->outbuf.s.datasize, data, size); |
488 | sk->outbuf.s.datasize += size; |
489 | break; |
490 | case SOCK_DGRAM: |
491 | if(sk->remote == NULL) |
492 | return; |
493 | new = smalloc(sizeof(*new)); |
494 | new->next = NULL; |
495 | memcpy(new->data = smalloc(size), data, new->size = size); |
496 | memcpy(new->addr = smalloc(sk->remotelen), sk->remote, new->addrlen = sk->remotelen); |
497 | if(sk->outbuf.d.l == NULL) |
498 | { |
499 | sk->outbuf.d.l = sk->outbuf.d.f = new; |
500 | } else { |
501 | sk->outbuf.d.l->next = new; |
502 | sk->outbuf.d.l = new; |
503 | } |
504 | break; |
505 | } |
506 | } |
507 | |
508 | size_t sockgetdatalen(struct socket *sk) |
509 | { |
510 | struct dgrambuf *b; |
511 | size_t ret; |
512 | |
513 | switch(sk->type) |
514 | { |
515 | case SOCK_STREAM: |
516 | ret = sk->inbuf.s.datasize; |
517 | break; |
518 | case SOCK_DGRAM: |
519 | ret = 0; |
520 | for(b = sk->inbuf.d.f; b != NULL; b = b->next) |
521 | ret += b->size; |
522 | break; |
523 | } |
524 | return(ret); |
525 | } |
526 | |
527 | size_t sockqueuesize(struct socket *sk) |
528 | { |
529 | struct dgrambuf *b; |
530 | size_t ret; |
531 | |
532 | switch(sk->type) |
533 | { |
534 | case SOCK_STREAM: |
535 | ret = sk->outbuf.s.datasize; |
536 | break; |
537 | case SOCK_DGRAM: |
538 | ret = 0; |
539 | for(b = sk->outbuf.d.f; b != NULL; b = b->next) |
540 | ret += b->size; |
541 | break; |
542 | } |
543 | return(ret); |
544 | } |
545 | |
d3372da9 |
546 | /* |
547 | * The difference between netcslisten() and netcslistenlocal() is that |
548 | * netcslistenlocal() always listens on the local host, instead of |
549 | * following proxy/passive mode directions. It is suitable for eg. the |
550 | * UI channel, while the file sharing networks should, naturally, use |
551 | * netcslisten() instead. |
552 | */ |
553 | |
554 | struct socket *netcslistenlocal(int type, struct sockaddr *name, socklen_t namelen, void (*func)(struct socket *, struct socket *, void *), void *data) |
555 | { |
556 | struct socket *sk; |
66c517d2 |
557 | int intbuf; |
d3372da9 |
558 | |
559 | /* I don't know if this is actually correct (it probably isn't), |
560 | * but since, at on least Linux systems, PF_* are specifically |
561 | * #define'd to their AF_* counterparts, it allows for a severely |
562 | * smoother implementation. If it breaks something on your |
563 | * platform, please tell me so. |
564 | */ |
565 | if((sk = mksock(name->sa_family, type)) == NULL) |
566 | return(NULL); |
567 | sk->state = SOCK_LST; |
687b2ee2 |
568 | if(confgetint("net", "reuseaddr")) |
569 | { |
570 | intbuf = 1; |
571 | setsockopt(sk->fd, SOL_SOCKET, SO_REUSEADDR, &intbuf, sizeof(intbuf)); |
572 | } |
d3372da9 |
573 | if(bind(sk->fd, name, namelen) < 0) |
574 | { |
575 | putsock(sk); |
576 | return(NULL); |
577 | } |
578 | if(listen(sk->fd, 16) < 0) |
579 | { |
580 | putsock(sk); |
581 | return(NULL); |
582 | } |
583 | sk->acceptcb = func; |
584 | sk->data = data; |
585 | return(sk); |
586 | } |
587 | |
c23acc61 |
588 | struct socket *netcslisten(int type, struct sockaddr *name, socklen_t namelen, void (*func)(struct socket *, struct socket *, void *), void *data) |
589 | { |
590 | if(confgetint("net", "mode") == 1) |
591 | { |
592 | errno = EOPNOTSUPP; |
593 | return(NULL); |
594 | } |
c23acc61 |
595 | if(confgetint("net", "mode") == 0) |
596 | return(netcslistenlocal(type, name, namelen, func, data)); |
597 | errno = EOPNOTSUPP; |
598 | return(NULL); |
599 | } |
600 | |
0a1bc5b1 |
601 | struct socket *netcstcplisten(int port, int local, void (*func)(struct socket *, struct socket *, void *), void *data) |
602 | { |
603 | struct sockaddr_in addr; |
604 | #ifdef HAVE_IPV6 |
605 | struct sockaddr_in6 addr6; |
606 | #endif |
607 | struct socket *(*csfunc)(int, struct sockaddr *, socklen_t, void (*)(struct socket *, struct socket *, void *), void *); |
608 | struct socket *ret; |
609 | |
610 | if(local) |
611 | csfunc = netcslistenlocal; |
612 | else |
613 | csfunc = netcslisten; |
614 | #ifdef HAVE_IPV6 |
615 | memset(&addr6, 0, sizeof(addr6)); |
616 | addr6.sin6_family = AF_INET6; |
617 | addr6.sin6_port = htons(port); |
618 | addr6.sin6_addr = in6addr_any; |
619 | if((ret = csfunc(SOCK_STREAM, (struct sockaddr *)&addr6, sizeof(addr6), func, data)) != NULL) |
620 | return(ret); |
621 | if((ret == NULL) && (errno != EAFNOSUPPORT)) |
622 | return(NULL); |
623 | #endif |
624 | memset(&addr, 0, sizeof(addr)); |
625 | addr.sin_family = AF_INET; |
626 | addr.sin_port = htons(port); |
627 | return(csfunc(SOCK_STREAM, (struct sockaddr *)&addr, sizeof(addr), func, data)); |
628 | } |
629 | |
d3372da9 |
630 | struct socket *netcsdgram(struct sockaddr *name, socklen_t namelen) |
631 | { |
632 | struct socket *sk; |
633 | int mode; |
634 | |
635 | mode = confgetint("net", "mode"); |
636 | if((mode == 0) || (mode == 1)) |
637 | { |
638 | if((sk = mksock(name->sa_family, SOCK_DGRAM)) == NULL) |
639 | return(NULL); |
640 | if(bind(sk->fd, name, namelen) < 0) |
641 | { |
642 | putsock(sk); |
643 | return(NULL); |
644 | } |
645 | sk->state = SOCK_EST; |
646 | return(sk); |
647 | } |
648 | errno = EOPNOTSUPP; |
649 | return(NULL); |
650 | } |
651 | |
652 | struct socket *netdupsock(struct socket *sk) |
653 | { |
654 | struct socket *newsk; |
655 | |
656 | newsk = newsock(sk->type); |
657 | if((newsk->fd = dup(sk->fd)) < 0) |
658 | { |
659 | flog(LOG_WARNING, "could not dup() socket: %s", strerror(errno)); |
660 | putsock(newsk); |
661 | return(NULL); |
662 | } |
663 | newsk->state = sk->state; |
664 | newsk->ignread = sk->ignread; |
665 | if(sk->remote != NULL) |
666 | memcpy(newsk->remote = smalloc(sk->remotelen), sk->remote, newsk->remotelen = sk->remotelen); |
667 | return(newsk); |
668 | } |
669 | |
670 | void netdgramconn(struct socket *sk, struct sockaddr *addr, socklen_t addrlen) |
671 | { |
672 | if(sk->remote != NULL) |
673 | free(sk->remote); |
674 | memcpy(sk->remote = smalloc(addrlen), addr, sk->remotelen = addrlen); |
675 | sk->ignread = 1; |
676 | } |
677 | |
678 | struct socket *netcsconn(struct sockaddr *addr, socklen_t addrlen, void (*func)(struct socket *, int, void *), void *data) |
679 | { |
680 | struct socket *sk; |
681 | int mode; |
682 | |
683 | mode = confgetint("net", "mode"); |
684 | if((mode == 0) || (mode == 1)) |
685 | { |
686 | if((sk = mksock(addr->sa_family, SOCK_STREAM)) == NULL) |
687 | return(NULL); |
688 | memcpy(sk->remote = smalloc(addrlen), addr, sk->remotelen = addrlen); |
689 | if(!connect(sk->fd, addr, addrlen)) |
690 | { |
691 | sk->state = SOCK_EST; |
692 | func(sk, 0, data); |
693 | return(sk); |
694 | } |
695 | if(errno == EINPROGRESS) |
696 | { |
697 | sk->state = SOCK_SYN; |
698 | sk->conncb = func; |
699 | sk->data = data; |
700 | return(sk); |
701 | } |
702 | putsock(sk); |
703 | return(NULL); |
704 | } |
705 | errno = EOPNOTSUPP; |
706 | return(NULL); |
707 | } |
708 | |
709 | int pollsocks(int timeout) |
710 | { |
711 | int i, num, ret, retlen; |
712 | int newfd; |
713 | struct pollfd *pfds; |
714 | struct socket *sk, *next, *newsk; |
715 | struct sockaddr_storage ss; |
716 | socklen_t sslen; |
717 | |
718 | pfds = smalloc(sizeof(*pfds) * (num = numsocks)); |
719 | for(i = 0, sk = sockets; i < num; sk = sk->next) |
720 | { |
721 | if(sk->state == SOCK_STL) |
722 | { |
723 | num--; |
724 | continue; |
725 | } |
726 | pfds[i].fd = sk->fd; |
727 | pfds[i].events = 0; |
728 | if(!sk->ignread) |
729 | pfds[i].events |= POLLIN; |
730 | if((sk->state == SOCK_SYN) || (sockqueuesize(sk) > 0)) |
731 | pfds[i].events |= POLLOUT; |
732 | pfds[i].revents = 0; |
733 | i++; |
734 | } |
735 | ret = poll(pfds, num, timeout); |
736 | if(ret < 0) |
737 | { |
738 | if(errno != EINTR) |
739 | { |
740 | flog(LOG_CRIT, "pollsocks: poll errored out: %s", strerror(errno)); |
741 | /* To avoid CPU hogging in case it's bad, which it |
742 | * probably is. */ |
743 | sleep(1); |
744 | } |
745 | free(pfds); |
746 | return(1); |
747 | } |
748 | for(sk = sockets; sk != NULL; sk = next) |
749 | { |
750 | next = sk->next; |
751 | for(i = 0; i < num; i++) |
752 | { |
753 | if(pfds[i].fd == sk->fd) |
754 | break; |
755 | } |
756 | if(i == num) |
757 | continue; |
758 | switch(sk->state) |
759 | { |
760 | case SOCK_LST: |
761 | if(pfds[i].revents & POLLIN) |
762 | { |
763 | sslen = sizeof(ss); |
764 | if((newfd = accept(sk->fd, (struct sockaddr *)&ss, &sslen)) < 0) |
765 | { |
766 | if(sk->errcb != NULL) |
767 | sk->errcb(sk, errno, sk->data); |
768 | } |
769 | newsk = newsock(sk->type); |
770 | newsk->fd = newfd; |
771 | newsk->family = sk->family; |
772 | newsk->state = SOCK_EST; |
773 | memcpy(newsk->remote = smalloc(sslen), &ss, sslen); |
774 | newsk->remotelen = sslen; |
775 | putsock(newsk); |
776 | if(sk->acceptcb != NULL) |
777 | sk->acceptcb(sk, newsk, sk->data); |
778 | } |
779 | if(pfds[i].revents & POLLERR) |
780 | { |
781 | retlen = sizeof(ret); |
782 | getsockopt(sk->fd, SOL_SOCKET, SO_ERROR, &ret, &retlen); |
783 | if(sk->errcb != NULL) |
784 | sk->errcb(sk, ret, sk->data); |
785 | continue; |
786 | } |
787 | break; |
788 | case SOCK_SYN: |
789 | if(pfds[i].revents & POLLERR) |
790 | { |
791 | retlen = sizeof(ret); |
792 | getsockopt(sk->fd, SOL_SOCKET, SO_ERROR, &ret, &retlen); |
793 | if(sk->conncb != NULL) |
794 | sk->conncb(sk, ret, sk->data); |
795 | closesock(sk); |
796 | continue; |
797 | } |
798 | if(pfds[i].revents & (POLLIN | POLLOUT)) |
799 | { |
800 | sk->state = SOCK_EST; |
801 | if(sk->conncb != NULL) |
802 | sk->conncb(sk, 0, sk->data); |
803 | } |
804 | break; |
805 | case SOCK_EST: |
806 | if(pfds[i].revents & POLLERR) |
807 | { |
808 | retlen = sizeof(ret); |
809 | getsockopt(sk->fd, SOL_SOCKET, SO_ERROR, &ret, &retlen); |
810 | if(sk->errcb != NULL) |
811 | sk->errcb(sk, ret, sk->data); |
812 | closesock(sk); |
813 | continue; |
814 | } |
815 | if(pfds[i].revents & POLLIN) |
816 | sockrecv(sk); |
817 | if(pfds[i].revents & POLLOUT) |
818 | { |
819 | if(sockqueuesize(sk) > 0) |
820 | sockflush(sk); |
821 | } |
822 | break; |
823 | } |
824 | if(pfds[i].revents & POLLNVAL) |
825 | { |
826 | flog(LOG_CRIT, "BUG: stale socket struct on fd %i", sk->fd); |
827 | sk->state = SOCK_STL; |
828 | unlinksock(sk); |
829 | continue; |
830 | } |
831 | if(pfds[i].revents & POLLHUP) |
832 | { |
833 | if(sk->errcb != NULL) |
834 | sk->errcb(sk, 0, sk->data); |
835 | closesock(sk); |
836 | unlinksock(sk); |
837 | continue; |
838 | } |
839 | } |
840 | free(pfds); |
841 | for(sk = sockets; sk != NULL; sk = next) |
842 | { |
843 | next = sk->next; |
844 | if(sk->refcount == 1 && (sockqueuesize(sk) == 0)) |
845 | { |
846 | unlinksock(sk); |
847 | continue; |
848 | } |
849 | if(sk->close && (sockqueuesize(sk) == 0)) |
850 | closesock(sk); |
851 | if(sk->state == SOCK_STL) |
852 | { |
853 | unlinksock(sk); |
854 | continue; |
855 | } |
856 | } |
857 | return(1); |
858 | } |
859 | |
860 | int socksettos(struct socket *sk, int tos) |
861 | { |
b020fb3d |
862 | int buf; |
863 | |
d3372da9 |
864 | if(sk->family == AF_INET) |
865 | { |
b020fb3d |
866 | switch(tos) |
867 | { |
b198bed6 |
868 | case 0: |
869 | buf = 0; |
870 | break; |
b020fb3d |
871 | case SOCK_TOS_MINCOST: |
18c1ae1d |
872 | buf = 0x02; |
b020fb3d |
873 | break; |
874 | case SOCK_TOS_MAXREL: |
18c1ae1d |
875 | buf = 0x04; |
b020fb3d |
876 | break; |
877 | case SOCK_TOS_MAXTP: |
18c1ae1d |
878 | buf = 0x08; |
b020fb3d |
879 | break; |
880 | case SOCK_TOS_MINDELAY: |
18c1ae1d |
881 | buf = 0x10; |
b020fb3d |
882 | break; |
883 | default: |
884 | flog(LOG_WARNING, "attempted to set unknown TOS value %i to IPv4 sock", tos); |
885 | return(-1); |
886 | } |
887 | if(setsockopt(sk->fd, SOL_IP, IP_TOS, &buf, sizeof(buf)) < 0) |
d3372da9 |
888 | { |
889 | flog(LOG_WARNING, "could not set sock TOS to %i: %s", tos, strerror(errno)); |
890 | return(-1); |
891 | } |
892 | return(0); |
893 | } |
b020fb3d |
894 | if(sk->family == AF_INET6) |
895 | { |
896 | switch(tos) |
897 | { |
b198bed6 |
898 | case 0: |
899 | buf = 0; |
b020fb3d |
900 | case SOCK_TOS_MINCOST: |
901 | buf = confgetint("net", "diffserv-mincost"); |
902 | break; |
903 | case SOCK_TOS_MAXREL: |
904 | buf = confgetint("net", "diffserv-maxrel"); |
905 | break; |
906 | case SOCK_TOS_MAXTP: |
907 | buf = confgetint("net", "diffserv-maxtp"); |
908 | break; |
909 | case SOCK_TOS_MINDELAY: |
910 | buf = confgetint("net", "diffserv-mindelay"); |
911 | break; |
912 | default: |
913 | flog(LOG_WARNING, "attempted to set unknown TOS value %i to IPv4 sock", tos); |
914 | return(-1); |
915 | } |
916 | /* |
917 | On Linux, the API IPv6 flow label management doesn't seem to |
918 | be entirely complete, so I guess this will have to wait. |
919 | |
920 | if(setsockopt(...) < 0) |
921 | { |
922 | flog(LOG_WARNING, "could not set sock traffic class to %i: %s", tos, strerror(errno)); |
923 | return(-1); |
924 | } |
925 | */ |
926 | return(0); |
927 | } |
d3372da9 |
928 | flog(LOG_WARNING, "could not set TOS on sock of family %i", sk->family); |
929 | return(1); |
930 | } |
931 | |
932 | struct resolvedata |
933 | { |
934 | int fd; |
935 | void (*callback)(struct sockaddr *addr, int addrlen, void *data); |
936 | void *data; |
937 | struct sockaddr_storage addr; |
938 | int addrlen; |
939 | }; |
940 | |
941 | static void resolvecb(pid_t pid, int status, struct resolvedata *data) |
942 | { |
943 | static char buf[80]; |
944 | int ret; |
945 | struct sockaddr_in *ipv4; |
946 | |
947 | if(!status) |
948 | { |
949 | if((ret = read(data->fd, buf, sizeof(buf))) != 4) |
950 | { |
951 | errno = ENONET; |
952 | data->callback(NULL, 0, data->data); |
953 | } else { |
954 | ipv4 = (struct sockaddr_in *)&data->addr; |
955 | memcpy(&ipv4->sin_addr, buf, 4); |
956 | data->callback((struct sockaddr *)ipv4, sizeof(*ipv4), data->data); |
957 | } |
958 | } else { |
959 | errno = ENONET; |
960 | data->callback(NULL, 0, data->data); |
961 | } |
962 | close(data->fd); |
963 | free(data); |
964 | } |
965 | |
966 | int netresolve(char *addr, void (*callback)(struct sockaddr *addr, int addrlen, void *data), void *data) |
967 | { |
968 | int i; |
969 | char *p; |
970 | int port; |
971 | int pfd[2]; |
972 | pid_t child; |
973 | struct resolvedata *rdata; |
974 | struct sockaddr_in ipv4; |
975 | struct hostent *he; |
976 | sigset_t sigset; |
977 | |
978 | /* IPv4 */ |
979 | port = -1; |
980 | if((p = strchr(addr, ':')) != NULL) |
981 | { |
982 | *p = 0; |
983 | port = atoi(p + 1); |
984 | } |
985 | ipv4.sin_family = AF_INET; |
986 | ipv4.sin_port = htons(port); |
987 | if(inet_aton(addr, &ipv4.sin_addr)) |
988 | { |
989 | callback((struct sockaddr *)&ipv4, sizeof(ipv4), data); |
990 | } else { |
991 | sigemptyset(&sigset); |
992 | sigaddset(&sigset, SIGCHLD); |
993 | sigprocmask(SIG_BLOCK, &sigset, NULL); |
994 | if((pipe(pfd) < 0) || ((child = fork()) < 0)) |
995 | { |
996 | sigprocmask(SIG_UNBLOCK, &sigset, NULL); |
997 | return(-1); |
998 | } |
999 | if(child == 0) |
1000 | { |
1001 | sigprocmask(SIG_UNBLOCK, &sigset, NULL); |
1002 | for(i = 3; i < FD_SETSIZE; i++) |
1003 | { |
1004 | if(i != pfd[1]) |
1005 | close(i); |
1006 | } |
1007 | signal(SIGALRM, SIG_DFL); |
1008 | alarm(30); |
1009 | if((he = gethostbyname(addr)) == NULL) |
1010 | exit(1); |
1011 | write(pfd[1], he->h_addr_list[0], 4); |
1012 | exit(0); |
1013 | } else { |
1014 | close(pfd[1]); |
1015 | fcntl(pfd[0], F_SETFL, fcntl(pfd[0], F_GETFL) | O_NONBLOCK); |
1016 | rdata = smalloc(sizeof(*rdata)); |
1017 | rdata->fd = pfd[0]; |
1018 | rdata->callback = callback; |
1019 | rdata->data = data; |
1020 | memcpy(&rdata->addr, &ipv4, rdata->addrlen = sizeof(ipv4)); |
1021 | childcallback(child, (void (*)(pid_t, int, void *))resolvecb, rdata); |
1022 | sigprocmask(SIG_UNBLOCK, &sigset, NULL); |
1023 | return(1); |
1024 | } |
1025 | } |
1026 | return(0); |
1027 | } |
1028 | |
1029 | int sockgetlocalname(struct socket *sk, struct sockaddr **namebuf, socklen_t *lenbuf) |
1030 | { |
1031 | socklen_t len; |
1032 | struct sockaddr_storage name; |
1033 | |
1034 | *namebuf = NULL; |
1035 | if((sk->state == SOCK_STL) || (sk->fd < 0)) |
1036 | return(-1); |
1037 | len = sizeof(name); |
1038 | if(getsockname(sk->fd, (struct sockaddr *)&name, &len) < 0) |
1039 | { |
1040 | flog(LOG_ERR, "BUG: alive socket with dead fd in sockgetlocalname"); |
1041 | return(-1); |
1042 | } |
1043 | *namebuf = memcpy(smalloc(len), &name, len); |
1044 | *lenbuf = len; |
1045 | return(0); |
1046 | } |
1047 | |
1048 | int sockgetremotename(struct socket *sk, struct sockaddr **namebuf, socklen_t *lenbuf) |
1049 | { |
1050 | socklen_t len; |
1051 | struct sockaddr_storage name; |
1052 | struct sockaddr_in *ipv4; |
1053 | struct sockaddr *pname; |
1054 | socklen_t pnamelen; |
1055 | |
1056 | switch(confgetint("net", "mode")) |
1057 | { |
1058 | case 0: |
1059 | *namebuf = NULL; |
1060 | if((sk->state == SOCK_STL) || (sk->fd < 0)) |
1061 | return(-1); |
1062 | len = sizeof(name); |
1063 | if(getsockname(sk->fd, (struct sockaddr *)&name, &len) < 0) |
1064 | { |
1065 | flog(LOG_ERR, "BUG: alive socket with dead fd in sockgetremotename"); |
1066 | return(-1); |
1067 | } |
1068 | if(name.ss_family == AF_INET) |
1069 | { |
1070 | ipv4 = (struct sockaddr_in *)&name; |
1071 | if(getpublicaddr(AF_INET, &pname, &pnamelen) < 0) |
1072 | { |
1073 | flog(LOG_WARNING, "could not determine public IP address - strange things may happen"); |
1074 | return(-1); |
1075 | } |
1076 | ipv4->sin_addr.s_addr = ((struct sockaddr_in *)pname)->sin_addr.s_addr; |
1077 | free(pname); |
1078 | } |
1079 | *namebuf = memcpy(smalloc(len), &name, len); |
1080 | *lenbuf = len; |
1081 | return(0); |
1082 | case 1: |
1083 | errno = EOPNOTSUPP; |
1084 | return(-1); |
1085 | default: |
1086 | flog(LOG_CRIT, "unknown net mode %i active", confgetint("net", "mode")); |
1087 | errno = EOPNOTSUPP; |
1088 | return(-1); |
1089 | } |
1090 | } |
1091 | |
99a28d47 |
1092 | int addreq(struct sockaddr *x, struct sockaddr *y) |
1093 | { |
1094 | struct sockaddr_un *u1, *u2; |
1095 | struct sockaddr_in *n1, *n2; |
1096 | #ifdef HAVE_IPV6 |
1097 | struct sockaddr_in6 *s1, *s2; |
1098 | #endif |
1099 | |
1100 | if(x->sa_family != y->sa_family) |
1101 | return(0); |
1102 | switch(x->sa_family) { |
1103 | case AF_UNIX: |
1104 | u1 = (struct sockaddr_un *)x; u2 = (struct sockaddr_un *)y; |
1105 | if(strncmp(u1->sun_path, u2->sun_path, sizeof(u1->sun_path))) |
1106 | return(0); |
1107 | break; |
1108 | case AF_INET: |
1109 | n1 = (struct sockaddr_in *)x; n2 = (struct sockaddr_in *)y; |
1110 | if(n1->sin_port != n2->sin_port) |
1111 | return(0); |
1112 | if(n1->sin_addr.s_addr != n2->sin_addr.s_addr) |
1113 | return(0); |
1114 | break; |
1115 | case AF_INET6: |
1116 | s1 = (struct sockaddr_in6 *)x; s2 = (struct sockaddr_in6 *)y; |
1117 | if(s1->sin6_port != s2->sin6_port) |
1118 | return(0); |
1119 | if(memcmp(s1->sin6_addr.s6_addr, s2->sin6_addr.s6_addr, sizeof(s1->sin6_addr.s6_addr))) |
1120 | return(0); |
1121 | break; |
1122 | } |
1123 | return(1); |
1124 | } |
1125 | |
d3372da9 |
1126 | char *formataddress(struct sockaddr *arg, socklen_t arglen) |
1127 | { |
1128 | struct sockaddr_un *UNIX; /* Some wise guy has #defined unix with |
1129 | * lowercase letters to 1, so I do this |
1130 | * instead. */ |
1131 | struct sockaddr_in *ipv4; |
1132 | #ifdef HAVE_IPV6 |
1133 | struct sockaddr_in6 *ipv6; |
1134 | #endif |
1135 | static char *ret = NULL; |
1136 | char buf[1024]; |
1137 | |
1138 | if(ret != NULL) |
1139 | free(ret); |
1140 | ret = NULL; |
1141 | switch(arg->sa_family) |
1142 | { |
1143 | case AF_UNIX: |
1144 | UNIX = (struct sockaddr_un *)arg; |
1145 | ret = sprintf2("%s", UNIX->sun_path); |
1146 | break; |
1147 | case AF_INET: |
1148 | ipv4 = (struct sockaddr_in *)arg; |
1149 | if(inet_ntop(AF_INET, &ipv4->sin_addr, buf, sizeof(buf)) == NULL) |
1150 | return(NULL); |
1151 | ret = sprintf2("%s:%i", buf, (int)ntohs(ipv4->sin_port)); |
1152 | break; |
1153 | #ifdef HAVE_IPV6 |
1154 | case AF_INET6: |
1155 | ipv6 = (struct sockaddr_in6 *)arg; |
1156 | if(inet_ntop(AF_INET6, &ipv6->sin6_addr, buf, sizeof(buf)) == NULL) |
1157 | return(NULL); |
fc7f7735 |
1158 | ret = sprintf2("[%s]:%i", buf, (int)ntohs(ipv6->sin6_port)); |
d3372da9 |
1159 | break; |
1160 | #endif |
1161 | default: |
1162 | errno = EPFNOSUPPORT; |
1163 | break; |
1164 | } |
1165 | return(ret); |
1166 | } |
1167 | |
1168 | #if 0 |
1169 | |
1170 | /* |
1171 | * It was very nice to use this, but it seems |
1172 | * to mess things up, so I guess it has to go... :-( |
1173 | */ |
1174 | |
1175 | static int formataddress(FILE *stream, const struct printf_info *info, const void *const *args) |
1176 | { |
1177 | struct sockaddr *arg; |
1178 | socklen_t arglen; |
1179 | struct sockaddr_un *UNIX; /* Some wise guy has #defined unix with |
1180 | * lowercase letters to 1, so I do this |
1181 | * instead. */ |
1182 | struct sockaddr_in *ipv4; |
1183 | int ret; |
1184 | |
1185 | arg = *(struct sockaddr **)(args[0]); |
1186 | arglen = *(socklen_t *)(args[1]); |
1187 | switch(arg->sa_family) |
1188 | { |
1189 | case AF_UNIX: |
1190 | UNIX = (struct sockaddr_un *)arg; |
1191 | ret = fprintf(stream, "%s", UNIX->sun_path); |
1192 | break; |
1193 | case AF_INET: |
1194 | ipv4 = (struct sockaddr_in *)arg; |
1195 | ret = fprintf(stream, "%s:%i", inet_ntoa(ipv4->sin_addr), (int)ntohs(ipv4->sin_port)); |
1196 | break; |
1197 | default: |
1198 | ret = -1; |
1199 | errno = EPFNOSUPPORT; |
1200 | break; |
1201 | } |
1202 | return(ret); |
1203 | } |
1204 | |
1205 | static int formataddress_arginfo(const struct printf_info *info, size_t n, int *argtypes) |
1206 | { |
1207 | if(n > 0) |
1208 | argtypes[0] = PA_POINTER; |
1209 | if(n > 1) |
1210 | argtypes[1] = PA_INT; /* Sources tell me that socklen_t _must_ |
1211 | * be an int, so I guess this should be |
1212 | * safe. */ |
1213 | return(2); |
1214 | } |
1215 | #endif |
1216 | |
1217 | static int init(int hup) |
1218 | { |
1219 | if(!hup) |
1220 | { |
1221 | /* |
1222 | if(register_printf_function('N', formataddress, formataddress_arginfo)) |
1223 | { |
1224 | flog(LOG_CRIT, "could not register printf handler %%N: %s", strerror(errno)); |
1225 | return(1); |
1226 | } |
1227 | */ |
1228 | } |
1229 | return(0); |
1230 | } |
1231 | |
1232 | static void terminate(void) |
1233 | { |
1234 | while(sockets != NULL) |
1235 | unlinksock(sockets); |
1236 | } |
1237 | |
1238 | static struct module me = |
1239 | { |
1240 | .name = "net", |
1241 | .conf = |
1242 | { |
1243 | .vars = myvars |
1244 | }, |
1245 | .init = init, |
1246 | .terminate = terminate |
1247 | }; |
1248 | |
1249 | MODULE(me) |