File: | src/usr.sbin/ospfd/ospfd.c |
Warning: | line 217, column 17 Access to field 'opts' results in a dereference of a null pointer (loaded from variable 'ospfd_conf') |
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1 | /* $OpenBSD: ospfd.c,v 1.117 2023/03/08 04:43:14 guenther Exp $ */ | |||
2 | ||||
3 | /* | |||
4 | * Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org> | |||
5 | * Copyright (c) 2004 Esben Norby <norby@openbsd.org> | |||
6 | * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org> | |||
7 | * | |||
8 | * Permission to use, copy, modify, and distribute this software for any | |||
9 | * purpose with or without fee is hereby granted, provided that the above | |||
10 | * copyright notice and this permission notice appear in all copies. | |||
11 | * | |||
12 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |||
13 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |||
14 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |||
15 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |||
16 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |||
17 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |||
18 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |||
19 | */ | |||
20 | ||||
21 | #include <sys/types.h> | |||
22 | #include <sys/socket.h> | |||
23 | #include <sys/queue.h> | |||
24 | #include <sys/time.h> | |||
25 | #include <sys/stat.h> | |||
26 | #include <sys/wait.h> | |||
27 | #include <sys/sysctl.h> | |||
28 | #include <syslog.h> | |||
29 | ||||
30 | #include <netinet/in.h> | |||
31 | #include <arpa/inet.h> | |||
32 | #include <net/if_types.h> | |||
33 | ||||
34 | #include <event.h> | |||
35 | #include <err.h> | |||
36 | #include <errno(*__errno()).h> | |||
37 | #include <pwd.h> | |||
38 | #include <stdio.h> | |||
39 | #include <stdlib.h> | |||
40 | #include <string.h> | |||
41 | #include <signal.h> | |||
42 | #include <unistd.h> | |||
43 | ||||
44 | #include "ospfd.h" | |||
45 | #include "ospf.h" | |||
46 | #include "ospfe.h" | |||
47 | #include "control.h" | |||
48 | #include "log.h" | |||
49 | #include "rde.h" | |||
50 | ||||
51 | void main_sig_handler(int, short, void *); | |||
52 | __dead__attribute__((__noreturn__)) void usage(void); | |||
53 | __dead__attribute__((__noreturn__)) void ospfd_shutdown(void); | |||
54 | ||||
55 | void main_dispatch_ospfe(int, short, void *); | |||
56 | void main_dispatch_rde(int, short, void *); | |||
57 | ||||
58 | int ospf_reload(void); | |||
59 | int ospf_sendboth(enum imsg_type, void *, u_int16_t); | |||
60 | int merge_interfaces(struct area *, struct area *); | |||
61 | struct iface *iface_lookup(struct area *, struct iface *); | |||
62 | ||||
63 | int pipe_parent2ospfe[2]; | |||
64 | int pipe_parent2rde[2]; | |||
65 | int pipe_ospfe2rde[2]; | |||
66 | ||||
67 | enum ospfd_process ospfd_process; | |||
68 | struct ospfd_conf *ospfd_conf = NULL((void *)0); | |||
69 | static struct imsgev *iev_ospfe; | |||
70 | static struct imsgev *iev_rde; | |||
71 | char *conffile; | |||
72 | ||||
73 | pid_t ospfe_pid = 0; | |||
74 | pid_t rde_pid = 0; | |||
75 | ||||
76 | void | |||
77 | main_sig_handler(int sig, short event, void *arg) | |||
78 | { | |||
79 | /* signal handler rules don't apply, libevent decouples for us */ | |||
80 | switch (sig) { | |||
81 | case SIGTERM15: | |||
82 | case SIGINT2: | |||
83 | ospfd_shutdown(); | |||
84 | /* NOTREACHED */ | |||
85 | case SIGHUP1: | |||
86 | if (ospf_reload() == -1) | |||
87 | log_warnx("configuration reload failed"); | |||
88 | else | |||
89 | log_debug("configuration reloaded"); | |||
90 | break; | |||
91 | default: | |||
92 | fatalx("unexpected signal"); | |||
93 | /* NOTREACHED */ | |||
94 | } | |||
95 | } | |||
96 | ||||
97 | __dead__attribute__((__noreturn__)) void | |||
98 | usage(void) | |||
99 | { | |||
100 | extern char *__progname; | |||
101 | ||||
102 | fprintf(stderr(&__sF[2]), "usage: %s [-cdnv] [-D macro=value]" | |||
103 | " [-f file] [-s socket]\n", | |||
104 | __progname); | |||
105 | exit(1); | |||
106 | } | |||
107 | ||||
108 | int | |||
109 | main(int argc, char *argv[]) | |||
110 | { | |||
111 | struct event ev_sigint, ev_sigterm, ev_sighup; | |||
112 | struct area *a; | |||
113 | int ch, opts = 0; | |||
114 | int debug = 0; | |||
115 | int ipforwarding; | |||
116 | int mib[4]; | |||
117 | size_t len; | |||
118 | char *sockname = NULL((void *)0); | |||
119 | int control_fd; | |||
120 | ||||
121 | conffile = CONF_FILE"/etc/ospfd.conf"; | |||
122 | ospfd_process = PROC_MAIN; | |||
123 | ||||
124 | log_init(1, LOG_DAEMON(3<<3)); /* log to stderr until daemonized */ | |||
125 | log_procinit(log_procnames[ospfd_process]); | |||
126 | ||||
127 | while ((ch = getopt(argc, argv, "cdD:f:ns:v")) != -1) { | |||
| ||||
128 | switch (ch) { | |||
129 | case 'c': | |||
130 | opts |= OSPFD_OPT_FORCE_DEMOTE0x00000010; | |||
131 | break; | |||
132 | case 'd': | |||
133 | debug = 1; | |||
134 | break; | |||
135 | case 'D': | |||
136 | if (cmdline_symset(optarg) < 0) | |||
137 | log_warnx("could not parse macro definition %s", | |||
138 | optarg); | |||
139 | break; | |||
140 | case 'f': | |||
141 | conffile = optarg; | |||
142 | break; | |||
143 | case 'n': | |||
144 | opts |= OSPFD_OPT_NOACTION0x00000004; | |||
145 | break; | |||
146 | case 's': | |||
147 | sockname = optarg; | |||
148 | break; | |||
149 | case 'v': | |||
150 | if (opts & OSPFD_OPT_VERBOSE0x00000001) | |||
151 | opts |= OSPFD_OPT_VERBOSE20x00000002; | |||
152 | opts |= OSPFD_OPT_VERBOSE0x00000001; | |||
153 | log_setverbose(1); | |||
154 | break; | |||
155 | default: | |||
156 | usage(); | |||
157 | /* NOTREACHED */ | |||
158 | } | |||
159 | } | |||
160 | ||||
161 | argc -= optind; | |||
162 | argv += optind; | |||
163 | if (argc > 0) | |||
164 | usage(); | |||
165 | ||||
166 | mib[0] = CTL_NET4; | |||
167 | mib[1] = PF_INET2; | |||
168 | mib[2] = IPPROTO_IP0; | |||
169 | mib[3] = IPCTL_FORWARDING1; | |||
170 | len = sizeof(ipforwarding); | |||
171 | if (sysctl(mib, 4, &ipforwarding, &len, NULL((void *)0), 0) == -1) | |||
172 | err(1, "sysctl"); | |||
173 | ||||
174 | if (ipforwarding != 1) { | |||
175 | log_warnx("WARNING: IP forwarding NOT enabled, " | |||
176 | "running as stub router"); | |||
177 | opts |= OSPFD_OPT_STUB_ROUTER0x00000008; | |||
178 | } | |||
179 | ||||
180 | /* fetch interfaces early */ | |||
181 | kif_init(); | |||
182 | ||||
183 | /* parse config file */ | |||
184 | if ((ospfd_conf = parse_config(conffile, opts)) == NULL((void *)0)) { | |||
185 | kif_clear(); | |||
186 | exit(1); | |||
187 | } | |||
188 | if (ospfd_conf->rtr_id.s_addr == 0) | |||
189 | ospfd_conf->rtr_id.s_addr = get_rtr_id(); | |||
190 | ||||
191 | if (sockname
| |||
192 | if (asprintf(&sockname, "%s.%d", OSPFD_SOCKET"/var/run/ospfd.sock", | |||
193 | ospfd_conf->rdomain) == -1) | |||
194 | err(1, "asprintf"); | |||
195 | } | |||
196 | ||||
197 | ospfd_conf->csock = sockname; | |||
198 | ||||
199 | if (ospfd_conf->opts & OSPFD_OPT_NOACTION0x00000004) { | |||
200 | if (ospfd_conf->opts & OSPFD_OPT_VERBOSE0x00000001) | |||
201 | print_config(ospfd_conf); | |||
202 | else | |||
203 | fprintf(stderr(&__sF[2]), "configuration OK\n"); | |||
204 | kif_clear(); | |||
205 | exit(0); | |||
206 | } | |||
207 | ||||
208 | /* check for root privileges */ | |||
209 | if (geteuid()) | |||
210 | errx(1, "need root privileges"); | |||
211 | ||||
212 | /* check for ospfd user */ | |||
213 | if (getpwnam(OSPFD_USER"_ospfd") == NULL((void *)0)) | |||
214 | errx(1, "unknown user %s", OSPFD_USER"_ospfd"); | |||
215 | ||||
216 | log_init(debug, LOG_DAEMON(3<<3)); | |||
217 | log_setverbose(ospfd_conf->opts & OSPFD_OPT_VERBOSE0x00000001); | |||
| ||||
218 | ||||
219 | if ((control_check(ospfd_conf->csock)) == -1) | |||
220 | fatalx("ospfd already running"); | |||
221 | ||||
222 | if (!debug) | |||
223 | daemon(1, 0); | |||
224 | ||||
225 | log_info("startup"); | |||
226 | ||||
227 | if (socketpair(AF_UNIX1, SOCK_STREAM1 | SOCK_CLOEXEC0x8000 | SOCK_NONBLOCK0x4000, | |||
228 | PF_UNSPEC0, pipe_parent2ospfe) == -1) | |||
229 | fatal("socketpair"); | |||
230 | if (socketpair(AF_UNIX1, SOCK_STREAM1 | SOCK_CLOEXEC0x8000 | SOCK_NONBLOCK0x4000, | |||
231 | PF_UNSPEC0, pipe_parent2rde) == -1) | |||
232 | fatal("socketpair"); | |||
233 | if (socketpair(AF_UNIX1, SOCK_STREAM1 | SOCK_CLOEXEC0x8000 | SOCK_NONBLOCK0x4000, | |||
234 | PF_UNSPEC0, pipe_ospfe2rde) == -1) | |||
235 | fatal("socketpair"); | |||
236 | ||||
237 | /* start children */ | |||
238 | rde_pid = rde(ospfd_conf, pipe_parent2rde, pipe_ospfe2rde, | |||
239 | pipe_parent2ospfe); | |||
240 | ospfe_pid = ospfe(ospfd_conf, pipe_parent2ospfe, pipe_ospfe2rde, | |||
241 | pipe_parent2rde); | |||
242 | ||||
243 | event_init(); | |||
244 | ||||
245 | /* setup signal handler */ | |||
246 | signal_set(&ev_sigint, SIGINT, main_sig_handler, NULL)event_set(&ev_sigint, 2, 0x08|0x10, main_sig_handler, ((void *)0)); | |||
247 | signal_set(&ev_sigterm, SIGTERM, main_sig_handler, NULL)event_set(&ev_sigterm, 15, 0x08|0x10, main_sig_handler, ( (void *)0)); | |||
248 | signal_set(&ev_sighup, SIGHUP, main_sig_handler, NULL)event_set(&ev_sighup, 1, 0x08|0x10, main_sig_handler, ((void *)0)); | |||
249 | signal_add(&ev_sigint, NULL)event_add(&ev_sigint, ((void *)0)); | |||
250 | signal_add(&ev_sigterm, NULL)event_add(&ev_sigterm, ((void *)0)); | |||
251 | signal_add(&ev_sighup, NULL)event_add(&ev_sighup, ((void *)0)); | |||
252 | signal(SIGPIPE13, SIG_IGN(void (*)(int))1); | |||
253 | ||||
254 | /* setup pipes to children */ | |||
255 | close(pipe_parent2ospfe[1]); | |||
256 | close(pipe_parent2rde[1]); | |||
257 | close(pipe_ospfe2rde[0]); | |||
258 | close(pipe_ospfe2rde[1]); | |||
259 | ||||
260 | if ((iev_ospfe = malloc(sizeof(struct imsgev))) == NULL((void *)0) || | |||
261 | (iev_rde = malloc(sizeof(struct imsgev))) == NULL((void *)0)) | |||
262 | fatal(NULL((void *)0)); | |||
263 | imsg_init(&iev_ospfe->ibuf, pipe_parent2ospfe[0]); | |||
264 | iev_ospfe->handler = main_dispatch_ospfe; | |||
265 | imsg_init(&iev_rde->ibuf, pipe_parent2rde[0]); | |||
266 | iev_rde->handler = main_dispatch_rde; | |||
267 | ||||
268 | /* setup event handler */ | |||
269 | iev_ospfe->events = EV_READ0x02; | |||
270 | event_set(&iev_ospfe->ev, iev_ospfe->ibuf.fd, iev_ospfe->events, | |||
271 | iev_ospfe->handler, iev_ospfe); | |||
272 | event_add(&iev_ospfe->ev, NULL((void *)0)); | |||
273 | ||||
274 | iev_rde->events = EV_READ0x02; | |||
275 | event_set(&iev_rde->ev, iev_rde->ibuf.fd, iev_rde->events, | |||
276 | iev_rde->handler, iev_rde); | |||
277 | event_add(&iev_rde->ev, NULL((void *)0)); | |||
278 | ||||
279 | if ((control_fd = control_init(ospfd_conf->csock)) == -1) | |||
280 | fatalx("control socket setup failed"); | |||
281 | main_imsg_compose_ospfe_fd(IMSG_CONTROLFD, 0, control_fd); | |||
282 | ||||
283 | if (unveil("/", "r") == -1) | |||
284 | fatal("unveil /"); | |||
285 | if (unveil(NULL((void *)0), NULL((void *)0)) == -1) | |||
286 | fatal("unveil"); | |||
287 | ||||
288 | if (kr_init(!(ospfd_conf->flags & OSPFD_FLAG_NO_FIB_UPDATE0x0001), | |||
289 | ospfd_conf->rdomain, ospfd_conf->redist_label_or_prefix, | |||
290 | ospfd_conf->fib_priority) == -1) | |||
291 | fatalx("kr_init failed"); | |||
292 | ||||
293 | /* remove unneeded stuff from config */ | |||
294 | while ((a = LIST_FIRST(&ospfd_conf->area_list)((&ospfd_conf->area_list)->lh_first)) != NULL((void *)0)) { | |||
295 | LIST_REMOVE(a, entry)do { if ((a)->entry.le_next != ((void *)0)) (a)->entry. le_next->entry.le_prev = (a)->entry.le_prev; *(a)->entry .le_prev = (a)->entry.le_next; ; ; } while (0); | |||
296 | area_del(a); | |||
297 | } | |||
298 | ||||
299 | event_dispatch(); | |||
300 | ||||
301 | ospfd_shutdown(); | |||
302 | /* NOTREACHED */ | |||
303 | return (0); | |||
304 | } | |||
305 | ||||
306 | __dead__attribute__((__noreturn__)) void | |||
307 | ospfd_shutdown(void) | |||
308 | { | |||
309 | pid_t pid; | |||
310 | int status; | |||
311 | struct redistribute *r; | |||
312 | ||||
313 | /* close pipes */ | |||
314 | msgbuf_clear(&iev_ospfe->ibuf.w); | |||
315 | close(iev_ospfe->ibuf.fd); | |||
316 | msgbuf_clear(&iev_rde->ibuf.w); | |||
317 | close(iev_rde->ibuf.fd); | |||
318 | ||||
319 | control_cleanup(); | |||
320 | while ((r = SIMPLEQ_FIRST(&ospfd_conf->redist_list)((&ospfd_conf->redist_list)->sqh_first)) != NULL((void *)0)) { | |||
321 | SIMPLEQ_REMOVE_HEAD(&ospfd_conf->redist_list, entry)do { if (((&ospfd_conf->redist_list)->sqh_first = ( &ospfd_conf->redist_list)->sqh_first->entry.sqe_next ) == ((void *)0)) (&ospfd_conf->redist_list)->sqh_last = &(&ospfd_conf->redist_list)->sqh_first; } while (0); | |||
322 | free(r); | |||
323 | } | |||
324 | kr_shutdown(); | |||
325 | carp_demote_shutdown(); | |||
326 | ||||
327 | log_debug("waiting for children to terminate"); | |||
328 | do { | |||
329 | pid = wait(&status); | |||
330 | if (pid == -1) { | |||
331 | if (errno(*__errno()) != EINTR4 && errno(*__errno()) != ECHILD10) | |||
332 | fatal("wait"); | |||
333 | } else if (WIFSIGNALED(status)(((status) & 0177) != 0177 && ((status) & 0177 ) != 0)) | |||
334 | log_warnx("%s terminated; signal %d", | |||
335 | (pid == rde_pid) ? "route decision engine" : | |||
336 | "ospf engine", WTERMSIG(status)(((status) & 0177))); | |||
337 | } while (pid != -1 || (pid == -1 && errno(*__errno()) == EINTR4)); | |||
338 | ||||
339 | free(iev_ospfe); | |||
340 | free(iev_rde); | |||
341 | free(ospfd_conf); | |||
342 | ||||
343 | log_info("terminating"); | |||
344 | exit(0); | |||
345 | } | |||
346 | ||||
347 | /* imsg handling */ | |||
348 | void | |||
349 | main_dispatch_ospfe(int fd, short event, void *bula) | |||
350 | { | |||
351 | struct imsgev *iev = bula; | |||
352 | struct imsgbuf *ibuf; | |||
353 | struct imsg imsg; | |||
354 | struct demote_msg dmsg; | |||
355 | ssize_t n; | |||
356 | int shut = 0, verbose; | |||
357 | ||||
358 | ibuf = &iev->ibuf; | |||
359 | ||||
360 | if (event & EV_READ0x02) { | |||
361 | if ((n = imsg_read(ibuf)) == -1 && errno(*__errno()) != EAGAIN35) | |||
362 | fatal("imsg_read error"); | |||
363 | if (n == 0) /* connection closed */ | |||
364 | shut = 1; | |||
365 | } | |||
366 | if (event & EV_WRITE0x04) { | |||
367 | if ((n = msgbuf_write(&ibuf->w)) == -1 && errno(*__errno()) != EAGAIN35) | |||
368 | fatal("msgbuf_write"); | |||
369 | if (n == 0) /* connection closed */ | |||
370 | shut = 1; | |||
371 | } | |||
372 | ||||
373 | for (;;) { | |||
374 | if ((n = imsg_get(ibuf, &imsg)) == -1) | |||
375 | fatal("imsg_get"); | |||
376 | ||||
377 | if (n == 0) | |||
378 | break; | |||
379 | ||||
380 | switch (imsg.hdr.type) { | |||
381 | case IMSG_CTL_RELOAD: | |||
382 | if (ospf_reload() == -1) | |||
383 | log_warnx("configuration reload failed"); | |||
384 | else | |||
385 | log_debug("configuration reloaded"); | |||
386 | break; | |||
387 | case IMSG_CTL_FIB_COUPLE: | |||
388 | kr_fib_couple(); | |||
389 | break; | |||
390 | case IMSG_CTL_FIB_DECOUPLE: | |||
391 | kr_fib_decouple(); | |||
392 | break; | |||
393 | case IMSG_CTL_FIB_RELOAD: | |||
394 | kr_fib_reload(); | |||
395 | break; | |||
396 | case IMSG_CTL_KROUTE: | |||
397 | case IMSG_CTL_KROUTE_ADDR: | |||
398 | kr_show_route(&imsg); | |||
399 | break; | |||
400 | case IMSG_CTL_IFINFO: | |||
401 | if (imsg.hdr.len == IMSG_HEADER_SIZEsizeof(struct imsg_hdr)) | |||
402 | kr_ifinfo(NULL((void *)0), imsg.hdr.pid); | |||
403 | else if (imsg.hdr.len == IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + IFNAMSIZ16) | |||
404 | kr_ifinfo(imsg.data, imsg.hdr.pid); | |||
405 | else | |||
406 | log_warnx("IFINFO request with wrong len"); | |||
407 | break; | |||
408 | case IMSG_DEMOTE: | |||
409 | if (imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr) != sizeof(dmsg)) | |||
410 | fatalx("invalid size of OE request"); | |||
411 | memcpy(&dmsg, imsg.data, sizeof(dmsg)); | |||
412 | carp_demote_set(dmsg.demote_group, dmsg.level); | |||
413 | break; | |||
414 | case IMSG_CTL_LOG_VERBOSE: | |||
415 | /* already checked by ospfe */ | |||
416 | memcpy(&verbose, imsg.data, sizeof(verbose)); | |||
417 | log_setverbose(verbose); | |||
418 | break; | |||
419 | default: | |||
420 | log_debug("main_dispatch_ospfe: error handling imsg %d", | |||
421 | imsg.hdr.type); | |||
422 | break; | |||
423 | } | |||
424 | imsg_free(&imsg); | |||
425 | } | |||
426 | if (!shut) | |||
427 | imsg_event_add(iev); | |||
428 | else { | |||
429 | /* this pipe is dead, so remove the event handler */ | |||
430 | event_del(&iev->ev); | |||
431 | event_loopexit(NULL((void *)0)); | |||
432 | } | |||
433 | } | |||
434 | ||||
435 | void | |||
436 | main_dispatch_rde(int fd, short event, void *bula) | |||
437 | { | |||
438 | struct imsgev *iev = bula; | |||
439 | struct imsgbuf *ibuf; | |||
440 | struct imsg imsg; | |||
441 | ssize_t n; | |||
442 | int count, shut = 0; | |||
443 | ||||
444 | ibuf = &iev->ibuf; | |||
445 | ||||
446 | if (event & EV_READ0x02) { | |||
447 | if ((n = imsg_read(ibuf)) == -1 && errno(*__errno()) != EAGAIN35) | |||
448 | fatal("imsg_read error"); | |||
449 | if (n == 0) /* connection closed */ | |||
450 | shut = 1; | |||
451 | } | |||
452 | if (event & EV_WRITE0x04) { | |||
453 | if ((n = msgbuf_write(&ibuf->w)) == -1 && errno(*__errno()) != EAGAIN35) | |||
454 | fatal("msgbuf_write"); | |||
455 | if (n == 0) /* connection closed */ | |||
456 | shut = 1; | |||
457 | } | |||
458 | ||||
459 | for (;;) { | |||
460 | if ((n = imsg_get(ibuf, &imsg)) == -1) | |||
461 | fatal("imsg_get"); | |||
462 | ||||
463 | if (n == 0) | |||
464 | break; | |||
465 | ||||
466 | switch (imsg.hdr.type) { | |||
467 | case IMSG_KROUTE_CHANGE: | |||
468 | count = (imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr)) / | |||
469 | sizeof(struct kroute); | |||
470 | if (kr_change(imsg.data, count)) | |||
471 | log_warn("main_dispatch_rde: error changing " | |||
472 | "route"); | |||
473 | break; | |||
474 | case IMSG_KROUTE_DELETE: | |||
475 | if (kr_delete(imsg.data)) | |||
476 | log_warn("main_dispatch_rde: error deleting " | |||
477 | "route"); | |||
478 | break; | |||
479 | default: | |||
480 | log_debug("main_dispatch_rde: error handling imsg %d", | |||
481 | imsg.hdr.type); | |||
482 | break; | |||
483 | } | |||
484 | imsg_free(&imsg); | |||
485 | } | |||
486 | if (!shut) | |||
487 | imsg_event_add(iev); | |||
488 | else { | |||
489 | /* this pipe is dead, so remove the event handler */ | |||
490 | event_del(&iev->ev); | |||
491 | event_loopexit(NULL((void *)0)); | |||
492 | } | |||
493 | } | |||
494 | ||||
495 | void | |||
496 | main_imsg_compose_ospfe(int type, pid_t pid, void *data, u_int16_t datalen) | |||
497 | { | |||
498 | if (iev_ospfe) | |||
499 | imsg_compose_event(iev_ospfe, type, 0, pid, -1, data, datalen); | |||
500 | } | |||
501 | ||||
502 | void | |||
503 | main_imsg_compose_ospfe_fd(int type, pid_t pid, int fd) | |||
504 | { | |||
505 | if (iev_ospfe) | |||
506 | imsg_compose_event(iev_ospfe, type, 0, pid, fd, NULL((void *)0), 0); | |||
507 | } | |||
508 | ||||
509 | void | |||
510 | main_imsg_compose_rde(int type, pid_t pid, void *data, u_int16_t datalen) | |||
511 | { | |||
512 | if (iev_rde) | |||
513 | imsg_compose_event(iev_rde, type, 0, pid, -1, data, datalen); | |||
514 | } | |||
515 | ||||
516 | void | |||
517 | imsg_event_add(struct imsgev *iev) | |||
518 | { | |||
519 | iev->events = EV_READ0x02; | |||
520 | if (iev->ibuf.w.queued) | |||
521 | iev->events |= EV_WRITE0x04; | |||
522 | ||||
523 | event_del(&iev->ev); | |||
524 | event_set(&iev->ev, iev->ibuf.fd, iev->events, iev->handler, iev); | |||
525 | event_add(&iev->ev, NULL((void *)0)); | |||
526 | } | |||
527 | ||||
528 | int | |||
529 | imsg_compose_event(struct imsgev *iev, u_int16_t type, u_int32_t peerid, | |||
530 | pid_t pid, int fd, void *data, u_int16_t datalen) | |||
531 | { | |||
532 | int ret; | |||
533 | ||||
534 | if ((ret = imsg_compose(&iev->ibuf, type, peerid, | |||
535 | pid, fd, data, datalen)) != -1) | |||
536 | imsg_event_add(iev); | |||
537 | return (ret); | |||
538 | } | |||
539 | ||||
540 | int | |||
541 | ospf_redistribute(struct kroute *kr, u_int32_t *metric) | |||
542 | { | |||
543 | struct in_addr addr; | |||
544 | struct kif *kif; | |||
545 | struct redistribute *r; | |||
546 | int is_default, depend_ok; | |||
547 | ||||
548 | bzero(&addr, sizeof(addr)); | |||
549 | ||||
550 | /* only allow 0.0.0.0/0 via REDIST_DEFAULT */ | |||
551 | is_default = (kr->prefix.s_addr == INADDR_ANY((u_int32_t)(0x00000000)) && kr->prefixlen == 0); | |||
552 | ||||
553 | SIMPLEQ_FOREACH(r, &ospfd_conf->redist_list, entry)for((r) = ((&ospfd_conf->redist_list)->sqh_first); ( r) != ((void *)0); (r) = ((r)->entry.sqe_next)) { | |||
554 | if (r->dependon[0] != '\0') { | |||
555 | if ((kif = kif_findname(r->dependon, addr, NULL((void *)0)))) | |||
556 | depend_ok = ifstate_is_up(kif); | |||
557 | else | |||
558 | depend_ok = 0; | |||
559 | } else | |||
560 | depend_ok = 1; | |||
561 | ||||
562 | switch (r->type & ~REDIST_NO0x10) { | |||
563 | case REDIST_LABEL0x04: | |||
564 | if (kr->rtlabel == r->label) { | |||
565 | *metric = depend_ok ? r->metric : | |||
566 | r->metric | MAX_METRIC65535; | |||
567 | return (r->type & REDIST_NO0x10 ? 0 : 1); | |||
568 | } | |||
569 | break; | |||
570 | case REDIST_STATIC0x02: | |||
571 | /* | |||
572 | * Dynamic routes are not redistributable. Placed here | |||
573 | * so that link local addresses can be redistributed | |||
574 | * via a rtlabel. | |||
575 | */ | |||
576 | if (is_default) | |||
577 | continue; | |||
578 | if (kr->flags & F_DYNAMIC0x0010) | |||
579 | continue; | |||
580 | if (kr->flags & F_STATIC0x0008) { | |||
581 | *metric = depend_ok ? r->metric : | |||
582 | r->metric | MAX_METRIC65535; | |||
583 | return (r->type & REDIST_NO0x10 ? 0 : 1); | |||
584 | } | |||
585 | break; | |||
586 | case REDIST_CONNECTED0x01: | |||
587 | if (is_default) | |||
588 | continue; | |||
589 | if (kr->flags & F_DYNAMIC0x0010) | |||
590 | continue; | |||
591 | if (kr->flags & F_CONNECTED0x0004) { | |||
592 | *metric = depend_ok ? r->metric : | |||
593 | r->metric | MAX_METRIC65535; | |||
594 | return (r->type & REDIST_NO0x10 ? 0 : 1); | |||
595 | } | |||
596 | break; | |||
597 | case REDIST_ADDR0x08: | |||
598 | if (kr->flags & F_DYNAMIC0x0010) | |||
599 | continue; | |||
600 | ||||
601 | if (r->addr.s_addr == INADDR_ANY((u_int32_t)(0x00000000)) && | |||
602 | r->mask.s_addr == INADDR_ANY((u_int32_t)(0x00000000))) { | |||
603 | if (is_default) { | |||
604 | *metric = depend_ok ? r->metric : | |||
605 | r->metric | MAX_METRIC65535; | |||
606 | return (r->type & REDIST_NO0x10 ? 0 : 1); | |||
607 | } else | |||
608 | return (0); | |||
609 | } | |||
610 | ||||
611 | if ((kr->prefix.s_addr & r->mask.s_addr) == | |||
612 | (r->addr.s_addr & r->mask.s_addr) && | |||
613 | kr->prefixlen >= mask2prefixlen(r->mask.s_addr)) { | |||
614 | *metric = depend_ok ? r->metric : | |||
615 | r->metric | MAX_METRIC65535; | |||
616 | return (r->type & REDIST_NO0x10 ? 0 : 1); | |||
617 | } | |||
618 | break; | |||
619 | case REDIST_DEFAULT0x20: | |||
620 | if (is_default) { | |||
621 | *metric = depend_ok ? r->metric : | |||
622 | r->metric | MAX_METRIC65535; | |||
623 | return (r->type & REDIST_NO0x10 ? 0 : 1); | |||
624 | } | |||
625 | break; | |||
626 | } | |||
627 | } | |||
628 | ||||
629 | return (0); | |||
630 | } | |||
631 | ||||
632 | int | |||
633 | ospf_reload(void) | |||
634 | { | |||
635 | struct area *area; | |||
636 | struct iface *iface; | |||
637 | struct ospfd_conf *xconf; | |||
638 | struct redistribute *r; | |||
639 | ||||
640 | if ((xconf = parse_config(conffile, ospfd_conf->opts)) == NULL((void *)0)) | |||
641 | return (-1); | |||
642 | ||||
643 | /* No router-id was specified, keep existing value */ | |||
644 | if (xconf->rtr_id.s_addr == 0) | |||
645 | xconf->rtr_id.s_addr = ospfd_conf->rtr_id.s_addr; | |||
646 | ||||
647 | /* Abort the reload if rtr_id changed */ | |||
648 | if (ospfd_conf->rtr_id.s_addr != xconf->rtr_id.s_addr) { | |||
649 | log_warnx("router-id changed: restart required"); | |||
650 | return (-1); | |||
651 | } | |||
652 | ||||
653 | /* send config to childs */ | |||
654 | if (ospf_sendboth(IMSG_RECONF_CONF, xconf, sizeof(*xconf)) == -1) | |||
655 | return (-1); | |||
656 | ||||
657 | /* send interfaces */ | |||
658 | LIST_FOREACH(area, &xconf->area_list, entry)for((area) = ((&xconf->area_list)->lh_first); (area )!= ((void *)0); (area) = ((area)->entry.le_next)) { | |||
659 | if (ospf_sendboth(IMSG_RECONF_AREA, area, sizeof(*area)) == -1) | |||
660 | return (-1); | |||
661 | ||||
662 | SIMPLEQ_FOREACH(r, &area->redist_list, entry)for((r) = ((&area->redist_list)->sqh_first); (r) != ((void *)0); (r) = ((r)->entry.sqe_next)) { | |||
663 | main_imsg_compose_rde(IMSG_RECONF_REDIST, 0, r, | |||
664 | sizeof(*r)); | |||
665 | } | |||
666 | LIST_FOREACH(iface, &area->iface_list, entry)for((iface) = ((&area->iface_list)->lh_first); (iface )!= ((void *)0); (iface) = ((iface)->entry.le_next)) { | |||
667 | if (ospf_sendboth(IMSG_RECONF_IFACE, iface, | |||
668 | sizeof(*iface)) == -1) | |||
669 | return (-1); | |||
670 | if (iface->auth_type == AUTH_CRYPT) | |||
671 | if (md_list_send(&iface->auth_md_list, | |||
672 | iev_ospfe) == -1) | |||
673 | return (-1); | |||
674 | } | |||
675 | } | |||
676 | ||||
677 | if (ospf_sendboth(IMSG_RECONF_END, NULL((void *)0), 0) == -1) | |||
678 | return (-1); | |||
679 | ||||
680 | merge_config(ospfd_conf, xconf); | |||
681 | /* update redistribute lists */ | |||
682 | kr_reload(ospfd_conf->redist_label_or_prefix); | |||
683 | return (0); | |||
684 | } | |||
685 | ||||
686 | int | |||
687 | ospf_sendboth(enum imsg_type type, void *buf, u_int16_t len) | |||
688 | { | |||
689 | if (imsg_compose_event(iev_ospfe, type, 0, 0, -1, buf, len) == -1) | |||
690 | return (-1); | |||
691 | if (imsg_compose_event(iev_rde, type, 0, 0, -1, buf, len) == -1) | |||
692 | return (-1); | |||
693 | return (0); | |||
694 | } | |||
695 | ||||
696 | void | |||
697 | merge_config(struct ospfd_conf *conf, struct ospfd_conf *xconf) | |||
698 | { | |||
699 | struct area *a, *xa, *na; | |||
700 | struct iface *iface; | |||
701 | struct redistribute *r; | |||
702 | int rchange = 0; | |||
703 | ||||
704 | conf->flags = xconf->flags; | |||
705 | conf->spf_delay = xconf->spf_delay; | |||
706 | conf->spf_hold_time = xconf->spf_hold_time; | |||
707 | if (SIMPLEQ_EMPTY(&conf->redist_list)(((&conf->redist_list)->sqh_first) == ((void *)0)) != | |||
708 | SIMPLEQ_EMPTY(&xconf->redist_list)(((&xconf->redist_list)->sqh_first) == ((void *)0))) | |||
709 | rchange = 1; | |||
710 | conf->rfc1583compat = xconf->rfc1583compat; | |||
711 | conf->redist_label_or_prefix = xconf->redist_label_or_prefix; | |||
712 | ||||
713 | if (ospfd_process == PROC_MAIN) { | |||
714 | /* main process does neither use areas nor interfaces */ | |||
715 | while ((r = SIMPLEQ_FIRST(&conf->redist_list)((&conf->redist_list)->sqh_first)) != NULL((void *)0)) { | |||
716 | SIMPLEQ_REMOVE_HEAD(&conf->redist_list, entry)do { if (((&conf->redist_list)->sqh_first = (&conf ->redist_list)->sqh_first->entry.sqe_next) == ((void *)0)) (&conf->redist_list)->sqh_last = &(& conf->redist_list)->sqh_first; } while (0); | |||
717 | free(r); | |||
718 | } | |||
719 | SIMPLEQ_CONCAT(&conf->redist_list, &xconf->redist_list)do { if (!((((&xconf->redist_list))->sqh_first) == ( (void *)0))) { *(&conf->redist_list)->sqh_last = (& xconf->redist_list)->sqh_first; (&conf->redist_list )->sqh_last = (&xconf->redist_list)->sqh_last; do { ((&xconf->redist_list))->sqh_first = ((void *)0) ; ((&xconf->redist_list))->sqh_last = &((&xconf ->redist_list))->sqh_first; } while (0); } } while (0); | |||
720 | ||||
721 | /* adjust FIB priority if changed */ | |||
722 | if (conf->fib_priority != xconf->fib_priority) { | |||
723 | kr_fib_decouple(); | |||
724 | kr_fib_update_prio(xconf->fib_priority); | |||
725 | conf->fib_priority = xconf->fib_priority; | |||
726 | kr_fib_couple(); | |||
727 | } | |||
728 | ||||
729 | goto done; | |||
730 | } | |||
731 | ||||
732 | /* merge areas and interfaces */ | |||
733 | for (a = LIST_FIRST(&conf->area_list)((&conf->area_list)->lh_first); a != NULL((void *)0); a = na) { | |||
734 | na = LIST_NEXT(a, entry)((a)->entry.le_next); | |||
735 | /* find deleted areas */ | |||
736 | if ((xa = area_find(xconf, a->id)) == NULL((void *)0)) { | |||
737 | if (ospfd_process == PROC_OSPF_ENGINE) { | |||
738 | LIST_FOREACH(iface, &a->iface_list, entry)for((iface) = ((&a->iface_list)->lh_first); (iface) != ((void *)0); (iface) = ((iface)->entry.le_next)) | |||
739 | if_fsm(iface, IF_EVT_DOWN); | |||
740 | } | |||
741 | LIST_REMOVE(a, entry)do { if ((a)->entry.le_next != ((void *)0)) (a)->entry. le_next->entry.le_prev = (a)->entry.le_prev; *(a)->entry .le_prev = (a)->entry.le_next; ; ; } while (0); | |||
742 | area_del(a); | |||
743 | } | |||
744 | } | |||
745 | ||||
746 | for (xa = LIST_FIRST(&xconf->area_list)((&xconf->area_list)->lh_first); xa != NULL((void *)0); xa = na) { | |||
747 | na = LIST_NEXT(xa, entry)((xa)->entry.le_next); | |||
748 | if ((a = area_find(conf, xa->id)) == NULL((void *)0)) { | |||
749 | LIST_REMOVE(xa, entry)do { if ((xa)->entry.le_next != ((void *)0)) (xa)->entry .le_next->entry.le_prev = (xa)->entry.le_prev; *(xa)-> entry.le_prev = (xa)->entry.le_next; ; ; } while (0); | |||
750 | LIST_INSERT_HEAD(&conf->area_list, xa, entry)do { if (((xa)->entry.le_next = (&conf->area_list)-> lh_first) != ((void *)0)) (&conf->area_list)->lh_first ->entry.le_prev = &(xa)->entry.le_next; (&conf-> area_list)->lh_first = (xa); (xa)->entry.le_prev = & (&conf->area_list)->lh_first; } while (0); | |||
751 | if (ospfd_process == PROC_OSPF_ENGINE) { | |||
752 | /* start interfaces */ | |||
753 | ospfe_demote_area(xa, 0); | |||
754 | LIST_FOREACH(iface, &xa->iface_list, entry)for((iface) = ((&xa->iface_list)->lh_first); (iface )!= ((void *)0); (iface) = ((iface)->entry.le_next)) { | |||
755 | if_init(conf, iface); | |||
756 | if (if_fsm(iface, IF_EVT_UP)) { | |||
757 | log_debug("error starting " | |||
758 | "interface %s", | |||
759 | iface->name); | |||
760 | } | |||
761 | } | |||
762 | } | |||
763 | /* no need to merge interfaces */ | |||
764 | continue; | |||
765 | } | |||
766 | /* | |||
767 | * stub is not yet used but switching between stub and normal | |||
768 | * will be another painful job. | |||
769 | */ | |||
770 | if (a->stub != xa->stub && ospfd_process == PROC_OSPF_ENGINE) | |||
771 | a->dirty = 1; /* force rtr LSA update */ | |||
772 | if (xa->stub && ospfd_process == PROC_RDE_ENGINE) { | |||
773 | while ((r = SIMPLEQ_FIRST(&a->redist_list)((&a->redist_list)->sqh_first)) != NULL((void *)0)) { | |||
774 | SIMPLEQ_REMOVE_HEAD(&a->redist_list, entry)do { if (((&a->redist_list)->sqh_first = (&a-> redist_list)->sqh_first->entry.sqe_next) == ((void *)0) ) (&a->redist_list)->sqh_last = &(&a->redist_list )->sqh_first; } while (0); | |||
775 | free(r); | |||
776 | } | |||
777 | ||||
778 | SIMPLEQ_CONCAT(&a->redist_list, &xa->redist_list)do { if (!((((&xa->redist_list))->sqh_first) == ((void *)0))) { *(&a->redist_list)->sqh_last = (&xa-> redist_list)->sqh_first; (&a->redist_list)->sqh_last = (&xa->redist_list)->sqh_last; do { ((&xa-> redist_list))->sqh_first = ((void *)0); ((&xa->redist_list ))->sqh_last = &((&xa->redist_list))->sqh_first ; } while (0); } } while (0); | |||
779 | } | |||
780 | ||||
781 | a->stub = xa->stub; | |||
782 | a->stub_default_cost = xa->stub_default_cost; | |||
783 | if (ospfd_process == PROC_RDE_ENGINE) | |||
784 | a->dirty = 1; /* force SPF tree recalculation */ | |||
785 | ||||
786 | /* merge interfaces */ | |||
787 | if (merge_interfaces(a, xa) && | |||
788 | ospfd_process == PROC_OSPF_ENGINE) | |||
789 | a->dirty = 1; /* force rtr LSA update */ | |||
790 | } | |||
791 | ||||
792 | if (ospfd_process == PROC_OSPF_ENGINE) { | |||
793 | LIST_FOREACH(a, &conf->area_list, entry)for((a) = ((&conf->area_list)->lh_first); (a)!= ((void *)0); (a) = ((a)->entry.le_next)) { | |||
794 | LIST_FOREACH(iface, &a->iface_list, entry)for((iface) = ((&a->iface_list)->lh_first); (iface) != ((void *)0); (iface) = ((iface)->entry.le_next)) { | |||
795 | if (iface->state == IF_STA_NEW0x00) { | |||
796 | iface->state = IF_STA_DOWN0x01; | |||
797 | if_init(conf, iface); | |||
798 | if (if_fsm(iface, IF_EVT_UP)) { | |||
799 | log_debug("error starting " | |||
800 | "interface %s", | |||
801 | iface->name); | |||
802 | } | |||
803 | } | |||
804 | } | |||
805 | if (a->dirty || rchange) { | |||
806 | a->dirty = 0; | |||
807 | orig_rtr_lsa(a); | |||
808 | } | |||
809 | } | |||
810 | } | |||
811 | if (ospfd_process == PROC_RDE_ENGINE) { | |||
812 | LIST_FOREACH(a, &conf->area_list, entry)for((a) = ((&conf->area_list)->lh_first); (a)!= ((void *)0); (a) = ((a)->entry.le_next)) { | |||
813 | if (a->dirty) { | |||
814 | start_spf_timer(); | |||
815 | break; | |||
816 | } | |||
817 | } | |||
818 | } | |||
819 | ||||
820 | done: | |||
821 | while ((a = LIST_FIRST(&xconf->area_list)((&xconf->area_list)->lh_first)) != NULL((void *)0)) { | |||
822 | LIST_REMOVE(a, entry)do { if ((a)->entry.le_next != ((void *)0)) (a)->entry. le_next->entry.le_prev = (a)->entry.le_prev; *(a)->entry .le_prev = (a)->entry.le_next; ; ; } while (0); | |||
823 | area_del(a); | |||
824 | } | |||
825 | free(xconf); | |||
826 | } | |||
827 | ||||
828 | int | |||
829 | merge_interfaces(struct area *a, struct area *xa) | |||
830 | { | |||
831 | struct iface *i, *xi, *ni; | |||
832 | int dirty = 0; | |||
833 | ||||
834 | /* problems: | |||
835 | * - new interfaces (easy) | |||
836 | * - deleted interfaces | |||
837 | * - changing passive (painful?) | |||
838 | */ | |||
839 | for (i = LIST_FIRST(&a->iface_list)((&a->iface_list)->lh_first); i != NULL((void *)0); i = ni) { | |||
840 | ni = LIST_NEXT(i, entry)((i)->entry.le_next); | |||
841 | if (iface_lookup(xa, i) == NULL((void *)0)) { | |||
842 | log_debug("merge_interfaces: proc %d area %s removing " | |||
843 | "interface %s", ospfd_process, inet_ntoa(a->id), | |||
844 | i->name); | |||
845 | if (ospfd_process == PROC_OSPF_ENGINE) | |||
846 | if_fsm(i, IF_EVT_DOWN); | |||
847 | else if (ospfd_process == PROC_RDE_ENGINE) | |||
848 | rde_nbr_iface_del(i); | |||
849 | 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); | |||
850 | if_del(i); | |||
851 | dirty = 1; /* force rtr LSA update */ | |||
852 | } | |||
853 | } | |||
854 | ||||
855 | for (xi = LIST_FIRST(&xa->iface_list)((&xa->iface_list)->lh_first); xi != NULL((void *)0); xi = ni) { | |||
856 | ni = LIST_NEXT(xi, entry)((xi)->entry.le_next); | |||
857 | if ((i = iface_lookup(a, xi)) == NULL((void *)0)) { | |||
858 | /* new interface but delay initialisation */ | |||
859 | log_debug("merge_interfaces: proc %d area %s adding " | |||
860 | "interface %s", ospfd_process, inet_ntoa(a->id), | |||
861 | xi->name); | |||
862 | LIST_REMOVE(xi, entry)do { if ((xi)->entry.le_next != ((void *)0)) (xi)->entry .le_next->entry.le_prev = (xi)->entry.le_prev; *(xi)-> entry.le_prev = (xi)->entry.le_next; ; ; } while (0); | |||
863 | LIST_INSERT_HEAD(&a->iface_list, xi, entry)do { if (((xi)->entry.le_next = (&a->iface_list)-> lh_first) != ((void *)0)) (&a->iface_list)->lh_first ->entry.le_prev = &(xi)->entry.le_next; (&a-> iface_list)->lh_first = (xi); (xi)->entry.le_prev = & (&a->iface_list)->lh_first; } while (0); | |||
864 | xi->area = a; | |||
865 | if (ospfd_process == PROC_OSPF_ENGINE) | |||
866 | xi->state = IF_STA_NEW0x00; | |||
867 | continue; | |||
868 | } | |||
869 | log_debug("merge_interfaces: proc %d area %s merging " | |||
870 | "interface %s", ospfd_process, inet_ntoa(a->id), i->name); | |||
871 | i->dst = xi->dst; | |||
872 | i->abr_id = xi->abr_id; | |||
873 | i->baudrate = xi->baudrate; | |||
874 | i->dead_interval = xi->dead_interval; | |||
875 | i->mtu = xi->mtu; | |||
876 | i->transmit_delay = xi->transmit_delay; | |||
877 | i->hello_interval = xi->hello_interval; | |||
878 | i->rxmt_interval = xi->rxmt_interval; | |||
879 | if (i->metric != xi->metric) | |||
880 | dirty = 1; | |||
881 | i->metric = xi->metric; | |||
882 | i->priority = xi->priority; | |||
883 | if (i->self) | |||
884 | i->self->priority = i->priority; | |||
885 | i->flags = xi->flags; /* needed? */ | |||
886 | i->if_type = xi->if_type; /* needed? */ | |||
887 | i->linkstate = xi->linkstate; /* needed? */ | |||
888 | ||||
889 | i->auth_type = xi->auth_type; | |||
890 | strncpy(i->auth_key, xi->auth_key, MAX_SIMPLE_AUTH_LEN8); | |||
891 | md_list_clr(&i->auth_md_list); | |||
892 | md_list_copy(&i->auth_md_list, &xi->auth_md_list); | |||
893 | ||||
894 | strlcpy(i->dependon, xi->dependon, | |||
895 | sizeof(i->dependon)); | |||
896 | i->depend_ok = xi->depend_ok; | |||
897 | ||||
898 | if (i->passive != xi->passive) { | |||
899 | /* need to restart interface to cope with this change */ | |||
900 | if (ospfd_process == PROC_OSPF_ENGINE) | |||
901 | if_fsm(i, IF_EVT_DOWN); | |||
902 | i->passive = xi->passive; | |||
903 | if (ospfd_process == PROC_OSPF_ENGINE) | |||
904 | if_fsm(i, IF_EVT_UP); | |||
905 | } | |||
906 | ||||
907 | if (i->type != xi->type) { | |||
908 | /* restart interface to enable or disable DR election */ | |||
909 | if (ospfd_process == PROC_OSPF_ENGINE) | |||
910 | if_fsm(i, IF_EVT_DOWN); | |||
911 | i->type = xi->type; | |||
912 | if (ospfd_process == PROC_OSPF_ENGINE) | |||
913 | if_fsm(i, IF_EVT_UP); | |||
914 | } | |||
915 | } | |||
916 | return (dirty); | |||
917 | } | |||
918 | ||||
919 | struct iface * | |||
920 | iface_lookup(struct area *area, struct iface *iface) | |||
921 | { | |||
922 | struct iface *i; | |||
923 | ||||
924 | LIST_FOREACH(i, &area->iface_list, entry)for((i) = ((&area->iface_list)->lh_first); (i)!= (( void *)0); (i) = ((i)->entry.le_next)) | |||
925 | if (i->ifindex == iface->ifindex && | |||
926 | i->addr.s_addr == iface->addr.s_addr && | |||
927 | i->mask.s_addr == iface->mask.s_addr) | |||
928 | return (i); | |||
929 | return (NULL((void *)0)); | |||
930 | } | |||
931 | ||||
932 | int | |||
933 | ifstate_is_up(struct kif *kif) | |||
934 | { | |||
935 | if (!(kif->flags & IFF_UP0x1)) | |||
936 | return (0); | |||
937 | if (kif->if_type == IFT_CARP0xf7 && | |||
938 | kif->link_state == LINK_STATE_UNKNOWN0) | |||
939 | return (0); | |||
940 | return LINK_STATE_IS_UP(kif->link_state)((kif->link_state) >= 4 || (kif->link_state) == 0); | |||
941 | } |