File: | src/usr.sbin/ripd/ripd.c |
Warning: | line 191, column 14 Access to field 'opts' results in a dereference of a null pointer (loaded from variable 'conf') |
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1 | /* $OpenBSD: ripd.c,v 1.37 2023/03/08 04:43:15 guenther Exp $ */ | |||
2 | ||||
3 | /* | |||
4 | * Copyright (c) 2006 Michele Marchetto <mydecay@openbeer.it> | |||
5 | * Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org> | |||
6 | * Copyright (c) 2004 Esben Norby <norby@openbsd.org> | |||
7 | * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org> | |||
8 | * | |||
9 | * Permission to use, copy, modify, and distribute this software for any | |||
10 | * purpose with or without fee is hereby granted, provided that the above | |||
11 | * copyright notice and this permission notice appear in all copies. | |||
12 | * | |||
13 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |||
14 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |||
15 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |||
16 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |||
17 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |||
18 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |||
19 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |||
20 | */ | |||
21 | ||||
22 | #include <sys/types.h> | |||
23 | #include <sys/socket.h> | |||
24 | #include <sys/queue.h> | |||
25 | #include <sys/time.h> | |||
26 | #include <sys/stat.h> | |||
27 | #include <sys/wait.h> | |||
28 | #include <sys/sysctl.h> | |||
29 | ||||
30 | #include <netinet/in.h> | |||
31 | #include <arpa/inet.h> | |||
32 | ||||
33 | #include <event.h> | |||
34 | #include <err.h> | |||
35 | #include <errno(*__errno()).h> | |||
36 | #include <pwd.h> | |||
37 | #include <stdio.h> | |||
38 | #include <stdlib.h> | |||
39 | #include <string.h> | |||
40 | #include <signal.h> | |||
41 | #include <unistd.h> | |||
42 | ||||
43 | #include "rip.h" | |||
44 | #include "ripd.h" | |||
45 | #include "ripe.h" | |||
46 | #include "log.h" | |||
47 | #include "control.h" | |||
48 | #include "rde.h" | |||
49 | ||||
50 | __dead__attribute__((__noreturn__)) void usage(void); | |||
51 | void main_sig_handler(int, short, void *); | |||
52 | __dead__attribute__((__noreturn__)) void ripd_shutdown(void); | |||
53 | void main_dispatch_ripe(int, short, void *); | |||
54 | void main_dispatch_rde(int, short, void *); | |||
55 | ||||
56 | int pipe_parent2ripe[2]; | |||
57 | int pipe_parent2rde[2]; | |||
58 | int pipe_ripe2rde[2]; | |||
59 | ||||
60 | struct ripd_conf *conf = NULL((void *)0); | |||
61 | static struct imsgev *iev_ripe; | |||
62 | static struct imsgev *iev_rde; | |||
63 | ||||
64 | pid_t ripe_pid = 0; | |||
65 | pid_t rde_pid = 0; | |||
66 | ||||
67 | __dead__attribute__((__noreturn__)) void | |||
68 | usage(void) | |||
69 | { | |||
70 | extern char *__progname; | |||
71 | ||||
72 | fprintf(stderr(&__sF[2]), | |||
73 | "usage: %s [-dnv] [-D macro=value] [-f file] [-s socket]\n", | |||
74 | __progname); | |||
75 | exit(1); | |||
76 | } | |||
77 | ||||
78 | void | |||
79 | main_sig_handler(int sig, short event, void *arg) | |||
80 | { | |||
81 | /* signal handler rules don't apply, libevent decouples for us */ | |||
82 | switch (sig) { | |||
83 | case SIGTERM15: | |||
84 | case SIGINT2: | |||
85 | ripd_shutdown(); | |||
86 | /* NOTREACHED */ | |||
87 | case SIGHUP1: | |||
88 | /* reconfigure */ | |||
89 | /* ... */ | |||
90 | break; | |||
91 | default: | |||
92 | fatalx("unexpected signal"); | |||
93 | /* NOTREACHED */ | |||
94 | } | |||
95 | } | |||
96 | ||||
97 | int | |||
98 | main(int argc, char *argv[]) | |||
99 | { | |||
100 | struct event ev_sigint, ev_sigterm, ev_sighup; | |||
101 | int mib[4]; | |||
102 | int debug = 0; | |||
103 | int ipforwarding; | |||
104 | int ch; | |||
105 | int opts = 0; | |||
106 | char *conffile; | |||
107 | char *sockname; | |||
108 | size_t len; | |||
109 | ||||
110 | conffile = CONF_FILE"/etc/ripd.conf"; | |||
111 | log_procname = "parent"; | |||
112 | sockname = RIPD_SOCKET"/var/run/ripd.sock"; | |||
113 | ||||
114 | log_init(1); /* log to stderr until daemonized */ | |||
115 | log_verbose(1); | |||
116 | ||||
117 | while ((ch = getopt(argc, argv, "cdD:f:ns:v")) != -1) { | |||
| ||||
118 | switch (ch) { | |||
119 | case 'c': | |||
120 | opts |= RIPD_OPT_FORCE_DEMOTE0x00000008; | |||
121 | break; | |||
122 | case 'd': | |||
123 | debug = 1; | |||
124 | break; | |||
125 | case 'D': | |||
126 | if (cmdline_symset(optarg) < 0) | |||
127 | log_warnx("could not parse macro definition %s", | |||
128 | optarg); | |||
129 | break; | |||
130 | case 'f': | |||
131 | conffile = optarg; | |||
132 | break; | |||
133 | case 'n': | |||
134 | opts |= RIPD_OPT_NOACTION0x00000004; | |||
135 | break; | |||
136 | case 's': | |||
137 | sockname = optarg; | |||
138 | break; | |||
139 | case 'v': | |||
140 | if (opts & RIPD_OPT_VERBOSE0x00000001) | |||
141 | opts |= RIPD_OPT_VERBOSE20x00000002; | |||
142 | opts |= RIPD_OPT_VERBOSE0x00000001; | |||
143 | break; | |||
144 | default: | |||
145 | usage(); | |||
146 | /* NOTREACHED */ | |||
147 | } | |||
148 | } | |||
149 | ||||
150 | argc -= optind; | |||
151 | argv += optind; | |||
152 | if (argc > 0) | |||
153 | usage(); | |||
154 | ||||
155 | mib[0] = CTL_NET4; | |||
156 | mib[1] = PF_INET2; | |||
157 | mib[2] = IPPROTO_IP0; | |||
158 | mib[3] = IPCTL_FORWARDING1; | |||
159 | len = sizeof(ipforwarding); | |||
160 | if (sysctl(mib, 4, &ipforwarding, &len, NULL((void *)0), 0) == -1) | |||
161 | err(1, "sysctl"); | |||
162 | ||||
163 | if (!ipforwarding) | |||
164 | log_warnx("WARNING: IP forwarding NOT enabled"); | |||
165 | ||||
166 | /* fetch interfaces early */ | |||
167 | kif_init(); | |||
168 | ||||
169 | /* parse config file */ | |||
170 | if ((conf = parse_config(conffile, opts)) == NULL((void *)0) ) | |||
171 | exit(1); | |||
172 | conf->csock = sockname; | |||
173 | ||||
174 | if (conf->opts & RIPD_OPT_NOACTION0x00000004) { | |||
175 | if (conf->opts & RIPD_OPT_VERBOSE0x00000001) | |||
176 | print_config(conf); | |||
177 | else | |||
178 | fprintf(stderr(&__sF[2]), "configuration OK\n"); | |||
179 | exit(0); | |||
180 | } | |||
181 | ||||
182 | /* check for root privileges */ | |||
183 | if (geteuid()) | |||
184 | errx(1, "need root privileges"); | |||
185 | ||||
186 | /* check for ripd user */ | |||
187 | if (getpwnam(RIPD_USER"_ripd") == NULL((void *)0)) | |||
188 | errx(1, "unknown user %s", RIPD_USER"_ripd"); | |||
189 | ||||
190 | log_init(debug); | |||
191 | log_verbose(conf->opts & RIPD_OPT_VERBOSE0x00000001); | |||
| ||||
192 | ||||
193 | if (!debug) | |||
194 | daemon(1, 0); | |||
195 | ||||
196 | log_info("startup"); | |||
197 | ||||
198 | if (socketpair(AF_UNIX1, SOCK_STREAM1 | SOCK_CLOEXEC0x8000 | SOCK_NONBLOCK0x4000, | |||
199 | PF_UNSPEC0, pipe_parent2ripe) == -1) | |||
200 | fatal("socketpair"); | |||
201 | if (socketpair(AF_UNIX1, SOCK_STREAM1 | SOCK_CLOEXEC0x8000 | SOCK_NONBLOCK0x4000, | |||
202 | PF_UNSPEC0, pipe_parent2rde) == -1) | |||
203 | fatal("socketpair"); | |||
204 | if (socketpair(AF_UNIX1, SOCK_STREAM1 | SOCK_CLOEXEC0x8000 | SOCK_NONBLOCK0x4000, | |||
205 | PF_UNSPEC0, pipe_ripe2rde) == -1) | |||
206 | fatal("socketpair"); | |||
207 | ||||
208 | /* start children */ | |||
209 | rde_pid = rde(conf, pipe_parent2rde, pipe_ripe2rde, pipe_parent2ripe); | |||
210 | ripe_pid = ripe(conf, pipe_parent2ripe, pipe_ripe2rde, pipe_parent2rde); | |||
211 | ||||
212 | /* no filesystem visibility */ | |||
213 | if (unveil("/", "") == -1) | |||
214 | fatal("unveil /"); | |||
215 | if (unveil(NULL((void *)0), NULL((void *)0)) == -1) | |||
216 | fatal("unveil"); | |||
217 | ||||
218 | event_init(); | |||
219 | ||||
220 | /* setup signal handler */ | |||
221 | signal_set(&ev_sigint, SIGINT, main_sig_handler, NULL)event_set(&ev_sigint, 2, 0x08|0x10, main_sig_handler, ((void *)0)); | |||
222 | signal_set(&ev_sigterm, SIGTERM, main_sig_handler, NULL)event_set(&ev_sigterm, 15, 0x08|0x10, main_sig_handler, ( (void *)0)); | |||
223 | signal_set(&ev_sighup, SIGHUP, main_sig_handler, NULL)event_set(&ev_sighup, 1, 0x08|0x10, main_sig_handler, ((void *)0)); | |||
224 | signal_add(&ev_sigint, NULL)event_add(&ev_sigint, ((void *)0)); | |||
225 | signal_add(&ev_sigterm, NULL)event_add(&ev_sigterm, ((void *)0)); | |||
226 | signal_add(&ev_sighup, NULL)event_add(&ev_sighup, ((void *)0)); | |||
227 | signal(SIGPIPE13, SIG_IGN(void (*)(int))1); | |||
228 | ||||
229 | /* setup pipes to children */ | |||
230 | close(pipe_parent2ripe[1]); | |||
231 | close(pipe_parent2rde[1]); | |||
232 | close(pipe_ripe2rde[0]); | |||
233 | close(pipe_ripe2rde[1]); | |||
234 | ||||
235 | if ((iev_ripe = malloc(sizeof(struct imsgev))) == NULL((void *)0) || | |||
236 | (iev_rde = malloc(sizeof(struct imsgev))) == NULL((void *)0)) | |||
237 | fatal(NULL((void *)0)); | |||
238 | imsg_init(&iev_ripe->ibuf, pipe_parent2ripe[0]); | |||
239 | iev_ripe->handler = main_dispatch_ripe; | |||
240 | imsg_init(&iev_rde->ibuf, pipe_parent2rde[0]); | |||
241 | iev_rde->handler = main_dispatch_rde; | |||
242 | ||||
243 | /* setup event handler */ | |||
244 | iev_ripe->events = EV_READ0x02; | |||
245 | event_set(&iev_ripe->ev, iev_ripe->ibuf.fd, iev_ripe->events, | |||
246 | iev_ripe->handler, iev_ripe); | |||
247 | event_add(&iev_ripe->ev, NULL((void *)0)); | |||
248 | ||||
249 | iev_rde->events = EV_READ0x02; | |||
250 | event_set(&iev_rde->ev, iev_rde->ibuf.fd, iev_rde->events, | |||
251 | iev_rde->handler, iev_rde); | |||
252 | event_add(&iev_rde->ev, NULL((void *)0)); | |||
253 | ||||
254 | if (kr_init(!(conf->flags & RIPD_FLAG_NO_FIB_UPDATE0x0001), | |||
255 | conf->rdomain, conf->fib_priority) == -1) | |||
256 | fatalx("kr_init failed"); | |||
257 | ||||
258 | event_dispatch(); | |||
259 | ||||
260 | ripd_shutdown(); | |||
261 | /* NOTREACHED */ | |||
262 | return (0); | |||
263 | } | |||
264 | ||||
265 | __dead__attribute__((__noreturn__)) void | |||
266 | ripd_shutdown(void) | |||
267 | { | |||
268 | struct iface *i; | |||
269 | pid_t pid; | |||
270 | int status; | |||
271 | ||||
272 | /* close pipes */ | |||
273 | msgbuf_clear(&iev_ripe->ibuf.w); | |||
274 | close(iev_ripe->ibuf.fd); | |||
275 | msgbuf_clear(&iev_rde->ibuf.w); | |||
276 | close(iev_rde->ibuf.fd); | |||
277 | ||||
278 | while ((i = LIST_FIRST(&conf->iface_list)((&conf->iface_list)->lh_first)) != NULL((void *)0)) { | |||
279 | LIST_REMOVE(i, entry)do { if ((i)->entry.le_next != ((void *)0)) (i)->entry. le_next->entry.le_prev = (i)->entry.le_prev; *(i)->entry .le_prev = (i)->entry.le_next; ; ; } while (0); | |||
280 | if_del(i); | |||
281 | } | |||
282 | ||||
283 | kr_shutdown(); | |||
284 | ||||
285 | log_debug("waiting for children to terminate"); | |||
286 | do { | |||
287 | pid = wait(&status); | |||
288 | if (pid == -1) { | |||
289 | if (errno(*__errno()) != EINTR4 && errno(*__errno()) != ECHILD10) | |||
290 | fatal("wait"); | |||
291 | } else if (WIFSIGNALED(status)(((status) & 0177) != 0177 && ((status) & 0177 ) != 0)) | |||
292 | log_warnx("%s terminated; signal %d", | |||
293 | (pid == rde_pid) ? "route decision engine" : | |||
294 | "rip engine", WTERMSIG(status)(((status) & 0177))); | |||
295 | } while (pid != -1 || (pid == -1 && errno(*__errno()) == EINTR4)); | |||
296 | ||||
297 | free(iev_ripe); | |||
298 | free(iev_rde); | |||
299 | free(conf); | |||
300 | ||||
301 | log_info("terminating"); | |||
302 | exit(0); | |||
303 | } | |||
304 | ||||
305 | /* imsg handling */ | |||
306 | void | |||
307 | main_dispatch_ripe(int fd, short event, void *bula) | |||
308 | { | |||
309 | struct imsgev *iev = bula; | |||
310 | struct imsgbuf *ibuf = &iev->ibuf; | |||
311 | struct imsg imsg; | |||
312 | struct demote_msg dmsg; | |||
313 | ssize_t n; | |||
314 | int shut = 0, verbose; | |||
315 | ||||
316 | if (event & EV_READ0x02) { | |||
317 | if ((n = imsg_read(ibuf)) == -1 && errno(*__errno()) != EAGAIN35) | |||
318 | fatal("imsg_read error"); | |||
319 | if (n == 0) /* connection closed */ | |||
320 | shut = 1; | |||
321 | } | |||
322 | if (event & EV_WRITE0x04) { | |||
323 | if ((n = msgbuf_write(&ibuf->w)) == -1 && errno(*__errno()) != EAGAIN35) | |||
324 | fatal("msgbuf_write"); | |||
325 | if (n == 0) /* connection closed */ | |||
326 | shut = 1; | |||
327 | } | |||
328 | ||||
329 | for (;;) { | |||
330 | if ((n = imsg_get(ibuf, &imsg)) == -1) | |||
331 | fatal("imsg_get"); | |||
332 | ||||
333 | if (n == 0) | |||
334 | break; | |||
335 | ||||
336 | switch (imsg.hdr.type) { | |||
337 | case IMSG_CTL_RELOAD: | |||
338 | /* XXX reconfig */ | |||
339 | break; | |||
340 | case IMSG_CTL_FIB_COUPLE: | |||
341 | kr_fib_couple(); | |||
342 | break; | |||
343 | case IMSG_CTL_FIB_DECOUPLE: | |||
344 | kr_fib_decouple(); | |||
345 | break; | |||
346 | case IMSG_CTL_KROUTE: | |||
347 | case IMSG_CTL_KROUTE_ADDR: | |||
348 | kr_show_route(&imsg); | |||
349 | break; | |||
350 | case IMSG_CTL_IFINFO: | |||
351 | if (imsg.hdr.len == IMSG_HEADER_SIZEsizeof(struct imsg_hdr)) | |||
352 | kr_ifinfo(NULL((void *)0), imsg.hdr.pid); | |||
353 | else if (imsg.hdr.len == IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + IFNAMSIZ16) | |||
354 | kr_ifinfo(imsg.data, imsg.hdr.pid); | |||
355 | else | |||
356 | log_warnx("IFINFO request with wrong len"); | |||
357 | break; | |||
358 | case IMSG_DEMOTE: | |||
359 | if (imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr) != sizeof(dmsg)) | |||
360 | fatalx("invalid size of OE request"); | |||
361 | memcpy(&dmsg, imsg.data, sizeof(dmsg)); | |||
362 | carp_demote_set(dmsg.demote_group, dmsg.level); | |||
363 | break; | |||
364 | case IMSG_CTL_LOG_VERBOSE: | |||
365 | /* already checked by ripe */ | |||
366 | memcpy(&verbose, imsg.data, sizeof(verbose)); | |||
367 | log_verbose(verbose); | |||
368 | break; | |||
369 | default: | |||
370 | log_debug("main_dispatch_ripe: error handling imsg %d", | |||
371 | imsg.hdr.type); | |||
372 | break; | |||
373 | } | |||
374 | imsg_free(&imsg); | |||
375 | } | |||
376 | if (!shut) | |||
377 | imsg_event_add(iev); | |||
378 | else { | |||
379 | /* this pipe is dead, so remove the event handler */ | |||
380 | event_del(&iev->ev); | |||
381 | event_loopexit(NULL((void *)0)); | |||
382 | } | |||
383 | } | |||
384 | ||||
385 | void | |||
386 | main_dispatch_rde(int fd, short event, void *bula) | |||
387 | { | |||
388 | struct imsgev *iev = bula; | |||
389 | struct imsgbuf *ibuf = &iev->ibuf; | |||
390 | struct imsg imsg; | |||
391 | ssize_t n; | |||
392 | int shut = 0; | |||
393 | ||||
394 | if (event & EV_READ0x02) { | |||
395 | if ((n = imsg_read(ibuf)) == -1 && errno(*__errno()) != EAGAIN35) | |||
396 | fatal("imsg_read error"); | |||
397 | if (n == 0) /* connection closed */ | |||
398 | shut = 1; | |||
399 | } | |||
400 | if (event & EV_WRITE0x04) { | |||
401 | if ((n = msgbuf_write(&ibuf->w)) == -1 && errno(*__errno()) != EAGAIN35) | |||
402 | fatal("msgbuf_write"); | |||
403 | if (n == 0) /* connection closed */ | |||
404 | shut = 1; | |||
405 | } | |||
406 | ||||
407 | for (;;) { | |||
408 | if ((n = imsg_get(ibuf, &imsg)) == -1) | |||
409 | fatal("imsg_get"); | |||
410 | ||||
411 | if (n == 0) | |||
412 | break; | |||
413 | ||||
414 | switch (imsg.hdr.type) { | |||
415 | case IMSG_KROUTE_CHANGE: | |||
416 | if (kr_change(imsg.data)) | |||
417 | log_warn("main_dispatch_rde: error changing " | |||
418 | "route"); | |||
419 | break; | |||
420 | case IMSG_KROUTE_DELETE: | |||
421 | if (kr_delete(imsg.data)) | |||
422 | log_warn("main_dispatch_rde: error deleting " | |||
423 | "route"); | |||
424 | break; | |||
425 | default: | |||
426 | log_debug("main_dispatch_rde: error handling imsg %d", | |||
427 | imsg.hdr.type); | |||
428 | break; | |||
429 | } | |||
430 | imsg_free(&imsg); | |||
431 | } | |||
432 | if (!shut) | |||
433 | imsg_event_add(iev); | |||
434 | else { | |||
435 | /* this pipe is dead, so remove the event handler */ | |||
436 | event_del(&iev->ev); | |||
437 | event_loopexit(NULL((void *)0)); | |||
438 | } | |||
439 | } | |||
440 | ||||
441 | void | |||
442 | main_imsg_compose_ripe(int type, pid_t pid, void *data, u_int16_t datalen) | |||
443 | { | |||
444 | imsg_compose_event(iev_ripe, type, 0, pid, -1, data, datalen); | |||
445 | } | |||
446 | ||||
447 | void | |||
448 | main_imsg_compose_rde(int type, pid_t pid, void *data, u_int16_t datalen) | |||
449 | { | |||
450 | imsg_compose_event(iev_rde, type, 0, pid, -1, data, datalen); | |||
451 | } | |||
452 | ||||
453 | int | |||
454 | rip_redistribute(struct kroute *kr) | |||
455 | { | |||
456 | struct redistribute *r; | |||
457 | u_int8_t is_default = 0; | |||
458 | ||||
459 | if (kr->flags & F_RIPD_INSERTED0x0001) | |||
460 | return (1); | |||
461 | ||||
462 | /* only allow 0.0.0.0/0 via REDIST_DEFAULT */ | |||
463 | if (kr->prefix.s_addr == INADDR_ANY((u_int32_t)(0x00000000)) && kr->netmask.s_addr == INADDR_ANY((u_int32_t)(0x00000000))) | |||
464 | is_default = 1; | |||
465 | ||||
466 | SIMPLEQ_FOREACH(r, &conf->redist_list, entry)for((r) = ((&conf->redist_list)->sqh_first); (r) != ((void *)0); (r) = ((r)->entry.sqe_next)) { | |||
467 | switch (r->type & ~REDIST_NO0x20) { | |||
468 | case REDIST_LABEL0x04: | |||
469 | if (kr->rtlabel == r->label) | |||
470 | return (r->type & REDIST_NO0x20 ? 0 : 1); | |||
471 | break; | |||
472 | case REDIST_STATIC0x02: | |||
473 | /* | |||
474 | * Dynamic routes are not redistributable. Placed here | |||
475 | * so that link local addresses can be redistributed | |||
476 | * via a rtlabel. | |||
477 | */ | |||
478 | if (is_default) | |||
479 | continue; | |||
480 | if (kr->flags & F_DYNAMIC0x0040) | |||
481 | continue; | |||
482 | if (kr->flags & F_STATIC0x0020) | |||
483 | return (r->type & REDIST_NO0x20 ? 0 : 1); | |||
484 | break; | |||
485 | case REDIST_CONNECTED0x01: | |||
486 | if (is_default) | |||
487 | continue; | |||
488 | if (kr->flags & F_DYNAMIC0x0040) | |||
489 | continue; | |||
490 | if (kr->flags & F_CONNECTED0x0008) | |||
491 | return (r->type & REDIST_NO0x20 ? 0 : 1); | |||
492 | break; | |||
493 | case REDIST_ADDR0x08: | |||
494 | if (kr->flags & F_DYNAMIC0x0040) | |||
495 | continue; | |||
496 | ||||
497 | if (r->addr.s_addr == INADDR_ANY((u_int32_t)(0x00000000)) && | |||
498 | r->mask.s_addr == INADDR_ANY((u_int32_t)(0x00000000))) { | |||
499 | if (is_default) | |||
500 | return (r->type & REDIST_NO0x20? 0 : 1); | |||
501 | else | |||
502 | return (0); | |||
503 | } | |||
504 | ||||
505 | if ((kr->prefix.s_addr & r->mask.s_addr) == | |||
506 | (r->addr.s_addr & r->mask.s_addr) && | |||
507 | (kr->netmask.s_addr & r->mask.s_addr) == | |||
508 | r->mask.s_addr) | |||
509 | return (r->type & REDIST_NO0x20? 0 : 1); | |||
510 | break; | |||
511 | case REDIST_DEFAULT0x10: | |||
512 | if (is_default) | |||
513 | return (r->type & REDIST_NO0x20? 0 : 1); | |||
514 | break; | |||
515 | } | |||
516 | } | |||
517 | ||||
518 | return (0); | |||
519 | } | |||
520 | ||||
521 | void | |||
522 | imsg_event_add(struct imsgev *iev) | |||
523 | { | |||
524 | if (iev->handler == NULL((void *)0)) { | |||
525 | imsg_flush(&iev->ibuf); | |||
526 | return; | |||
527 | } | |||
528 | ||||
529 | iev->events = EV_READ0x02; | |||
530 | if (iev->ibuf.w.queued) | |||
531 | iev->events |= EV_WRITE0x04; | |||
532 | ||||
533 | event_del(&iev->ev); | |||
534 | event_set(&iev->ev, iev->ibuf.fd, iev->events, iev->handler, iev); | |||
535 | event_add(&iev->ev, NULL((void *)0)); | |||
536 | } | |||
537 | ||||
538 | int | |||
539 | imsg_compose_event(struct imsgev *iev, u_int16_t type, | |||
540 | u_int32_t peerid, pid_t pid, int fd, void *data, u_int16_t datalen) | |||
541 | { | |||
542 | int ret; | |||
543 | ||||
544 | if ((ret = imsg_compose(&iev->ibuf, type, peerid, | |||
545 | pid, fd, data, datalen)) != -1) | |||
546 | imsg_event_add(iev); | |||
547 | return (ret); | |||
548 | } |