File: | src/usr.sbin/ospfd/ospfd.c |
Warning: | line 218, 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 1.116 2021/09/06 13:32:18 deraadt 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 | /* ARGSUSED */ | |||
77 | void | |||
78 | main_sig_handler(int sig, short event, void *arg) | |||
79 | { | |||
80 | /* signal handler rules don't apply, libevent decouples for us */ | |||
81 | switch (sig) { | |||
82 | case SIGTERM15: | |||
83 | case SIGINT2: | |||
84 | ospfd_shutdown(); | |||
85 | /* NOTREACHED */ | |||
86 | case SIGHUP1: | |||
87 | if (ospf_reload() == -1) | |||
88 | log_warnx("configuration reload failed"); | |||
89 | else | |||
90 | log_debug("configuration reloaded"); | |||
91 | break; | |||
92 | default: | |||
93 | fatalx("unexpected signal"); | |||
94 | /* NOTREACHED */ | |||
95 | } | |||
96 | } | |||
97 | ||||
98 | __dead__attribute__((__noreturn__)) void | |||
99 | usage(void) | |||
100 | { | |||
101 | extern char *__progname; | |||
102 | ||||
103 | fprintf(stderr(&__sF[2]), "usage: %s [-cdnv] [-D macro=value]" | |||
104 | " [-f file] [-s socket]\n", | |||
105 | __progname); | |||
106 | exit(1); | |||
107 | } | |||
108 | ||||
109 | int | |||
110 | main(int argc, char *argv[]) | |||
111 | { | |||
112 | struct event ev_sigint, ev_sigterm, ev_sighup; | |||
113 | struct area *a; | |||
114 | int ch, opts = 0; | |||
115 | int debug = 0; | |||
116 | int ipforwarding; | |||
117 | int mib[4]; | |||
118 | size_t len; | |||
119 | char *sockname = NULL((void*)0); | |||
120 | int control_fd; | |||
121 | ||||
122 | conffile = CONF_FILE"/etc/ospfd.conf"; | |||
123 | ospfd_process = PROC_MAIN; | |||
124 | ||||
125 | log_init(1, LOG_DAEMON(3<<3)); /* log to stderr until daemonized */ | |||
126 | log_procinit(log_procnames[ospfd_process]); | |||
127 | ||||
128 | while ((ch = getopt(argc, argv, "cdD:f:ns:v")) != -1) { | |||
| ||||
129 | switch (ch) { | |||
130 | case 'c': | |||
131 | opts |= OSPFD_OPT_FORCE_DEMOTE0x00000010; | |||
132 | break; | |||
133 | case 'd': | |||
134 | debug = 1; | |||
135 | break; | |||
136 | case 'D': | |||
137 | if (cmdline_symset(optarg) < 0) | |||
138 | log_warnx("could not parse macro definition %s", | |||
139 | optarg); | |||
140 | break; | |||
141 | case 'f': | |||
142 | conffile = optarg; | |||
143 | break; | |||
144 | case 'n': | |||
145 | opts |= OSPFD_OPT_NOACTION0x00000004; | |||
146 | break; | |||
147 | case 's': | |||
148 | sockname = optarg; | |||
149 | break; | |||
150 | case 'v': | |||
151 | if (opts & OSPFD_OPT_VERBOSE0x00000001) | |||
152 | opts |= OSPFD_OPT_VERBOSE20x00000002; | |||
153 | opts |= OSPFD_OPT_VERBOSE0x00000001; | |||
154 | log_setverbose(1); | |||
155 | break; | |||
156 | default: | |||
157 | usage(); | |||
158 | /* NOTREACHED */ | |||
159 | } | |||
160 | } | |||
161 | ||||
162 | argc -= optind; | |||
163 | argv += optind; | |||
164 | if (argc > 0) | |||
165 | usage(); | |||
166 | ||||
167 | mib[0] = CTL_NET4; | |||
168 | mib[1] = PF_INET2; | |||
169 | mib[2] = IPPROTO_IP0; | |||
170 | mib[3] = IPCTL_FORWARDING1; | |||
171 | len = sizeof(ipforwarding); | |||
172 | if (sysctl(mib, 4, &ipforwarding, &len, NULL((void*)0), 0) == -1) | |||
173 | err(1, "sysctl"); | |||
174 | ||||
175 | if (ipforwarding != 1) { | |||
176 | log_warnx("WARNING: IP forwarding NOT enabled, " | |||
177 | "running as stub router"); | |||
178 | opts |= OSPFD_OPT_STUB_ROUTER0x00000008; | |||
179 | } | |||
180 | ||||
181 | /* fetch interfaces early */ | |||
182 | kif_init(); | |||
183 | ||||
184 | /* parse config file */ | |||
185 | if ((ospfd_conf = parse_config(conffile, opts)) == NULL((void*)0)) { | |||
186 | kif_clear(); | |||
187 | exit(1); | |||
188 | } | |||
189 | if (ospfd_conf->rtr_id.s_addr == 0) | |||
190 | ospfd_conf->rtr_id.s_addr = get_rtr_id(); | |||
191 | ||||
192 | if (sockname
| |||
193 | if (asprintf(&sockname, "%s.%d", OSPFD_SOCKET"/var/run/ospfd.sock", | |||
194 | ospfd_conf->rdomain) == -1) | |||
195 | err(1, "asprintf"); | |||
196 | } | |||
197 | ||||
198 | ospfd_conf->csock = sockname; | |||
199 | ||||
200 | if (ospfd_conf->opts & OSPFD_OPT_NOACTION0x00000004) { | |||
201 | if (ospfd_conf->opts & OSPFD_OPT_VERBOSE0x00000001) | |||
202 | print_config(ospfd_conf); | |||
203 | else | |||
204 | fprintf(stderr(&__sF[2]), "configuration OK\n"); | |||
205 | kif_clear(); | |||
206 | exit(0); | |||
207 | } | |||
208 | ||||
209 | /* check for root privileges */ | |||
210 | if (geteuid()) | |||
211 | errx(1, "need root privileges"); | |||
212 | ||||
213 | /* check for ospfd user */ | |||
214 | if (getpwnam(OSPFD_USER"_ospfd") == NULL((void*)0)) | |||
215 | errx(1, "unknown user %s", OSPFD_USER"_ospfd"); | |||
216 | ||||
217 | log_init(debug, LOG_DAEMON(3<<3)); | |||
218 | log_setverbose(ospfd_conf->opts & OSPFD_OPT_VERBOSE0x00000001); | |||
| ||||
219 | ||||
220 | if ((control_check(ospfd_conf->csock)) == -1) | |||
221 | fatalx("ospfd already running"); | |||
222 | ||||
223 | if (!debug) | |||
224 | daemon(1, 0); | |||
225 | ||||
226 | log_info("startup"); | |||
227 | ||||
228 | if (socketpair(AF_UNIX1, SOCK_STREAM1 | SOCK_CLOEXEC0x8000 | SOCK_NONBLOCK0x4000, | |||
229 | PF_UNSPEC0, pipe_parent2ospfe) == -1) | |||
230 | fatal("socketpair"); | |||
231 | if (socketpair(AF_UNIX1, SOCK_STREAM1 | SOCK_CLOEXEC0x8000 | SOCK_NONBLOCK0x4000, | |||
232 | PF_UNSPEC0, pipe_parent2rde) == -1) | |||
233 | fatal("socketpair"); | |||
234 | if (socketpair(AF_UNIX1, SOCK_STREAM1 | SOCK_CLOEXEC0x8000 | SOCK_NONBLOCK0x4000, | |||
235 | PF_UNSPEC0, pipe_ospfe2rde) == -1) | |||
236 | fatal("socketpair"); | |||
237 | ||||
238 | /* start children */ | |||
239 | rde_pid = rde(ospfd_conf, pipe_parent2rde, pipe_ospfe2rde, | |||
240 | pipe_parent2ospfe); | |||
241 | ospfe_pid = ospfe(ospfd_conf, pipe_parent2ospfe, pipe_ospfe2rde, | |||
242 | pipe_parent2rde); | |||
243 | ||||
244 | event_init(); | |||
245 | ||||
246 | /* setup signal handler */ | |||
247 | signal_set(&ev_sigint, SIGINT, main_sig_handler, NULL)event_set(&ev_sigint, 2, 0x08|0x10, main_sig_handler, ((void *)0)); | |||
248 | signal_set(&ev_sigterm, SIGTERM, main_sig_handler, NULL)event_set(&ev_sigterm, 15, 0x08|0x10, main_sig_handler, ( (void*)0)); | |||
249 | signal_set(&ev_sighup, SIGHUP, main_sig_handler, NULL)event_set(&ev_sighup, 1, 0x08|0x10, main_sig_handler, ((void *)0)); | |||
250 | signal_add(&ev_sigint, NULL)event_add(&ev_sigint, ((void*)0)); | |||
251 | signal_add(&ev_sigterm, NULL)event_add(&ev_sigterm, ((void*)0)); | |||
252 | signal_add(&ev_sighup, NULL)event_add(&ev_sighup, ((void*)0)); | |||
253 | signal(SIGPIPE13, SIG_IGN(void (*)(int))1); | |||
254 | ||||
255 | /* setup pipes to children */ | |||
256 | close(pipe_parent2ospfe[1]); | |||
257 | close(pipe_parent2rde[1]); | |||
258 | close(pipe_ospfe2rde[0]); | |||
259 | close(pipe_ospfe2rde[1]); | |||
260 | ||||
261 | if ((iev_ospfe = malloc(sizeof(struct imsgev))) == NULL((void*)0) || | |||
262 | (iev_rde = malloc(sizeof(struct imsgev))) == NULL((void*)0)) | |||
263 | fatal(NULL((void*)0)); | |||
264 | imsg_init(&iev_ospfe->ibuf, pipe_parent2ospfe[0]); | |||
265 | iev_ospfe->handler = main_dispatch_ospfe; | |||
266 | imsg_init(&iev_rde->ibuf, pipe_parent2rde[0]); | |||
267 | iev_rde->handler = main_dispatch_rde; | |||
268 | ||||
269 | /* setup event handler */ | |||
270 | iev_ospfe->events = EV_READ0x02; | |||
271 | event_set(&iev_ospfe->ev, iev_ospfe->ibuf.fd, iev_ospfe->events, | |||
272 | iev_ospfe->handler, iev_ospfe); | |||
273 | event_add(&iev_ospfe->ev, NULL((void*)0)); | |||
274 | ||||
275 | iev_rde->events = EV_READ0x02; | |||
276 | event_set(&iev_rde->ev, iev_rde->ibuf.fd, iev_rde->events, | |||
277 | iev_rde->handler, iev_rde); | |||
278 | event_add(&iev_rde->ev, NULL((void*)0)); | |||
279 | ||||
280 | if ((control_fd = control_init(ospfd_conf->csock)) == -1) | |||
281 | fatalx("control socket setup failed"); | |||
282 | main_imsg_compose_ospfe_fd(IMSG_CONTROLFD, 0, control_fd); | |||
283 | ||||
284 | if (unveil("/", "r") == -1) | |||
285 | fatal("unveil /"); | |||
286 | if (unveil(NULL((void*)0), NULL((void*)0)) == -1) | |||
287 | fatal("unveil"); | |||
288 | ||||
289 | if (kr_init(!(ospfd_conf->flags & OSPFD_FLAG_NO_FIB_UPDATE0x0001), | |||
290 | ospfd_conf->rdomain, ospfd_conf->redist_label_or_prefix, | |||
291 | ospfd_conf->fib_priority) == -1) | |||
292 | fatalx("kr_init failed"); | |||
293 | ||||
294 | /* remove unneeded stuff from config */ | |||
295 | while ((a = LIST_FIRST(&ospfd_conf->area_list)((&ospfd_conf->area_list)->lh_first)) != NULL((void*)0)) { | |||
296 | 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); | |||
297 | area_del(a); | |||
298 | } | |||
299 | ||||
300 | event_dispatch(); | |||
301 | ||||
302 | ospfd_shutdown(); | |||
303 | /* NOTREACHED */ | |||
304 | return (0); | |||
305 | } | |||
306 | ||||
307 | __dead__attribute__((__noreturn__)) void | |||
308 | ospfd_shutdown(void) | |||
309 | { | |||
310 | pid_t pid; | |||
311 | int status; | |||
312 | struct redistribute *r; | |||
313 | ||||
314 | /* close pipes */ | |||
315 | msgbuf_clear(&iev_ospfe->ibuf.w); | |||
316 | close(iev_ospfe->ibuf.fd); | |||
317 | msgbuf_clear(&iev_rde->ibuf.w); | |||
318 | close(iev_rde->ibuf.fd); | |||
319 | ||||
320 | control_cleanup(); | |||
321 | while ((r = SIMPLEQ_FIRST(&ospfd_conf->redist_list)((&ospfd_conf->redist_list)->sqh_first)) != NULL((void*)0)) { | |||
322 | 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); | |||
323 | free(r); | |||
324 | } | |||
325 | kr_shutdown(); | |||
326 | carp_demote_shutdown(); | |||
327 | ||||
328 | log_debug("waiting for children to terminate"); | |||
329 | do { | |||
330 | pid = wait(&status); | |||
331 | if (pid == -1) { | |||
332 | if (errno(*__errno()) != EINTR4 && errno(*__errno()) != ECHILD10) | |||
333 | fatal("wait"); | |||
334 | } else if (WIFSIGNALED(status)(((status) & 0177) != 0177 && ((status) & 0177 ) != 0)) | |||
335 | log_warnx("%s terminated; signal %d", | |||
336 | (pid == rde_pid) ? "route decision engine" : | |||
337 | "ospf engine", WTERMSIG(status)(((status) & 0177))); | |||
338 | } while (pid != -1 || (pid == -1 && errno(*__errno()) == EINTR4)); | |||
339 | ||||
340 | free(iev_ospfe); | |||
341 | free(iev_rde); | |||
342 | free(ospfd_conf); | |||
343 | ||||
344 | log_info("terminating"); | |||
345 | exit(0); | |||
346 | } | |||
347 | ||||
348 | /* imsg handling */ | |||
349 | /* ARGSUSED */ | |||
350 | void | |||
351 | main_dispatch_ospfe(int fd, short event, void *bula) | |||
352 | { | |||
353 | struct imsgev *iev = bula; | |||
354 | struct imsgbuf *ibuf; | |||
355 | struct imsg imsg; | |||
356 | struct demote_msg dmsg; | |||
357 | ssize_t n; | |||
358 | int shut = 0, verbose; | |||
359 | ||||
360 | ibuf = &iev->ibuf; | |||
361 | ||||
362 | if (event & EV_READ0x02) { | |||
363 | if ((n = imsg_read(ibuf)) == -1 && errno(*__errno()) != EAGAIN35) | |||
364 | fatal("imsg_read error"); | |||
365 | if (n == 0) /* connection closed */ | |||
366 | shut = 1; | |||
367 | } | |||
368 | if (event & EV_WRITE0x04) { | |||
369 | if ((n = msgbuf_write(&ibuf->w)) == -1 && errno(*__errno()) != EAGAIN35) | |||
370 | fatal("msgbuf_write"); | |||
371 | if (n == 0) /* connection closed */ | |||
372 | shut = 1; | |||
373 | } | |||
374 | ||||
375 | for (;;) { | |||
376 | if ((n = imsg_get(ibuf, &imsg)) == -1) | |||
377 | fatal("imsg_get"); | |||
378 | ||||
379 | if (n == 0) | |||
380 | break; | |||
381 | ||||
382 | switch (imsg.hdr.type) { | |||
383 | case IMSG_CTL_RELOAD: | |||
384 | if (ospf_reload() == -1) | |||
385 | log_warnx("configuration reload failed"); | |||
386 | else | |||
387 | log_debug("configuration reloaded"); | |||
388 | break; | |||
389 | case IMSG_CTL_FIB_COUPLE: | |||
390 | kr_fib_couple(); | |||
391 | break; | |||
392 | case IMSG_CTL_FIB_DECOUPLE: | |||
393 | kr_fib_decouple(); | |||
394 | break; | |||
395 | case IMSG_CTL_FIB_RELOAD: | |||
396 | kr_fib_reload(); | |||
397 | break; | |||
398 | case IMSG_CTL_KROUTE: | |||
399 | case IMSG_CTL_KROUTE_ADDR: | |||
400 | kr_show_route(&imsg); | |||
401 | break; | |||
402 | case IMSG_CTL_IFINFO: | |||
403 | if (imsg.hdr.len == IMSG_HEADER_SIZEsizeof(struct imsg_hdr)) | |||
404 | kr_ifinfo(NULL((void*)0), imsg.hdr.pid); | |||
405 | else if (imsg.hdr.len == IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + IFNAMSIZ16) | |||
406 | kr_ifinfo(imsg.data, imsg.hdr.pid); | |||
407 | else | |||
408 | log_warnx("IFINFO request with wrong len"); | |||
409 | break; | |||
410 | case IMSG_DEMOTE: | |||
411 | if (imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr) != sizeof(dmsg)) | |||
412 | fatalx("invalid size of OE request"); | |||
413 | memcpy(&dmsg, imsg.data, sizeof(dmsg)); | |||
414 | carp_demote_set(dmsg.demote_group, dmsg.level); | |||
415 | break; | |||
416 | case IMSG_CTL_LOG_VERBOSE: | |||
417 | /* already checked by ospfe */ | |||
418 | memcpy(&verbose, imsg.data, sizeof(verbose)); | |||
419 | log_setverbose(verbose); | |||
420 | break; | |||
421 | default: | |||
422 | log_debug("main_dispatch_ospfe: error handling imsg %d", | |||
423 | imsg.hdr.type); | |||
424 | break; | |||
425 | } | |||
426 | imsg_free(&imsg); | |||
427 | } | |||
428 | if (!shut) | |||
429 | imsg_event_add(iev); | |||
430 | else { | |||
431 | /* this pipe is dead, so remove the event handler */ | |||
432 | event_del(&iev->ev); | |||
433 | event_loopexit(NULL((void*)0)); | |||
434 | } | |||
435 | } | |||
436 | ||||
437 | /* ARGSUSED */ | |||
438 | void | |||
439 | main_dispatch_rde(int fd, short event, void *bula) | |||
440 | { | |||
441 | struct imsgev *iev = bula; | |||
442 | struct imsgbuf *ibuf; | |||
443 | struct imsg imsg; | |||
444 | ssize_t n; | |||
445 | int count, shut = 0; | |||
446 | ||||
447 | ibuf = &iev->ibuf; | |||
448 | ||||
449 | if (event & EV_READ0x02) { | |||
450 | if ((n = imsg_read(ibuf)) == -1 && errno(*__errno()) != EAGAIN35) | |||
451 | fatal("imsg_read error"); | |||
452 | if (n == 0) /* connection closed */ | |||
453 | shut = 1; | |||
454 | } | |||
455 | if (event & EV_WRITE0x04) { | |||
456 | if ((n = msgbuf_write(&ibuf->w)) == -1 && errno(*__errno()) != EAGAIN35) | |||
457 | fatal("msgbuf_write"); | |||
458 | if (n == 0) /* connection closed */ | |||
459 | shut = 1; | |||
460 | } | |||
461 | ||||
462 | for (;;) { | |||
463 | if ((n = imsg_get(ibuf, &imsg)) == -1) | |||
464 | fatal("imsg_get"); | |||
465 | ||||
466 | if (n == 0) | |||
467 | break; | |||
468 | ||||
469 | switch (imsg.hdr.type) { | |||
470 | case IMSG_KROUTE_CHANGE: | |||
471 | count = (imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr)) / | |||
472 | sizeof(struct kroute); | |||
473 | if (kr_change(imsg.data, count)) | |||
474 | log_warn("main_dispatch_rde: error changing " | |||
475 | "route"); | |||
476 | break; | |||
477 | case IMSG_KROUTE_DELETE: | |||
478 | if (kr_delete(imsg.data)) | |||
479 | log_warn("main_dispatch_rde: error deleting " | |||
480 | "route"); | |||
481 | break; | |||
482 | default: | |||
483 | log_debug("main_dispatch_rde: error handling imsg %d", | |||
484 | imsg.hdr.type); | |||
485 | break; | |||
486 | } | |||
487 | imsg_free(&imsg); | |||
488 | } | |||
489 | if (!shut) | |||
490 | imsg_event_add(iev); | |||
491 | else { | |||
492 | /* this pipe is dead, so remove the event handler */ | |||
493 | event_del(&iev->ev); | |||
494 | event_loopexit(NULL((void*)0)); | |||
495 | } | |||
496 | } | |||
497 | ||||
498 | void | |||
499 | main_imsg_compose_ospfe(int type, pid_t pid, void *data, u_int16_t datalen) | |||
500 | { | |||
501 | if (iev_ospfe) | |||
502 | imsg_compose_event(iev_ospfe, type, 0, pid, -1, data, datalen); | |||
503 | } | |||
504 | ||||
505 | void | |||
506 | main_imsg_compose_ospfe_fd(int type, pid_t pid, int fd) | |||
507 | { | |||
508 | if (iev_ospfe) | |||
509 | imsg_compose_event(iev_ospfe, type, 0, pid, fd, NULL((void*)0), 0); | |||
510 | } | |||
511 | ||||
512 | void | |||
513 | main_imsg_compose_rde(int type, pid_t pid, void *data, u_int16_t datalen) | |||
514 | { | |||
515 | if (iev_rde) | |||
516 | imsg_compose_event(iev_rde, type, 0, pid, -1, data, datalen); | |||
517 | } | |||
518 | ||||
519 | void | |||
520 | imsg_event_add(struct imsgev *iev) | |||
521 | { | |||
522 | iev->events = EV_READ0x02; | |||
523 | if (iev->ibuf.w.queued) | |||
524 | iev->events |= EV_WRITE0x04; | |||
525 | ||||
526 | event_del(&iev->ev); | |||
527 | event_set(&iev->ev, iev->ibuf.fd, iev->events, iev->handler, iev); | |||
528 | event_add(&iev->ev, NULL((void*)0)); | |||
529 | } | |||
530 | ||||
531 | int | |||
532 | imsg_compose_event(struct imsgev *iev, u_int16_t type, u_int32_t peerid, | |||
533 | pid_t pid, int fd, void *data, u_int16_t datalen) | |||
534 | { | |||
535 | int ret; | |||
536 | ||||
537 | if ((ret = imsg_compose(&iev->ibuf, type, peerid, | |||
538 | pid, fd, data, datalen)) != -1) | |||
539 | imsg_event_add(iev); | |||
540 | return (ret); | |||
541 | } | |||
542 | ||||
543 | int | |||
544 | ospf_redistribute(struct kroute *kr, u_int32_t *metric) | |||
545 | { | |||
546 | struct in_addr addr; | |||
547 | struct kif *kif; | |||
548 | struct redistribute *r; | |||
549 | int is_default, depend_ok; | |||
550 | ||||
551 | bzero(&addr, sizeof(addr)); | |||
552 | ||||
553 | /* only allow 0.0.0.0/0 via REDIST_DEFAULT */ | |||
554 | is_default = (kr->prefix.s_addr == INADDR_ANY((u_int32_t)(0x00000000)) && kr->prefixlen == 0); | |||
555 | ||||
556 | SIMPLEQ_FOREACH(r, &ospfd_conf->redist_list, entry)for((r) = ((&ospfd_conf->redist_list)->sqh_first); ( r) != ((void*)0); (r) = ((r)->entry.sqe_next)) { | |||
557 | if (r->dependon[0] != '\0') { | |||
558 | if ((kif = kif_findname(r->dependon, addr, NULL((void*)0)))) | |||
559 | depend_ok = ifstate_is_up(kif); | |||
560 | else | |||
561 | depend_ok = 0; | |||
562 | } else | |||
563 | depend_ok = 1; | |||
564 | ||||
565 | switch (r->type & ~REDIST_NO0x10) { | |||
566 | case REDIST_LABEL0x04: | |||
567 | if (kr->rtlabel == r->label) { | |||
568 | *metric = depend_ok ? r->metric : | |||
569 | r->metric | MAX_METRIC65535; | |||
570 | return (r->type & REDIST_NO0x10 ? 0 : 1); | |||
571 | } | |||
572 | break; | |||
573 | case REDIST_STATIC0x02: | |||
574 | /* | |||
575 | * Dynamic routes are not redistributable. Placed here | |||
576 | * so that link local addresses can be redistributed | |||
577 | * via a rtlabel. | |||
578 | */ | |||
579 | if (is_default) | |||
580 | continue; | |||
581 | if (kr->flags & F_DYNAMIC0x0010) | |||
582 | continue; | |||
583 | if (kr->flags & F_STATIC0x0008) { | |||
584 | *metric = depend_ok ? r->metric : | |||
585 | r->metric | MAX_METRIC65535; | |||
586 | return (r->type & REDIST_NO0x10 ? 0 : 1); | |||
587 | } | |||
588 | break; | |||
589 | case REDIST_CONNECTED0x01: | |||
590 | if (is_default) | |||
591 | continue; | |||
592 | if (kr->flags & F_DYNAMIC0x0010) | |||
593 | continue; | |||
594 | if (kr->flags & F_CONNECTED0x0004) { | |||
595 | *metric = depend_ok ? r->metric : | |||
596 | r->metric | MAX_METRIC65535; | |||
597 | return (r->type & REDIST_NO0x10 ? 0 : 1); | |||
598 | } | |||
599 | break; | |||
600 | case REDIST_ADDR0x08: | |||
601 | if (kr->flags & F_DYNAMIC0x0010) | |||
602 | continue; | |||
603 | ||||
604 | if (r->addr.s_addr == INADDR_ANY((u_int32_t)(0x00000000)) && | |||
605 | r->mask.s_addr == INADDR_ANY((u_int32_t)(0x00000000))) { | |||
606 | if (is_default) { | |||
607 | *metric = depend_ok ? r->metric : | |||
608 | r->metric | MAX_METRIC65535; | |||
609 | return (r->type & REDIST_NO0x10 ? 0 : 1); | |||
610 | } else | |||
611 | return (0); | |||
612 | } | |||
613 | ||||
614 | if ((kr->prefix.s_addr & r->mask.s_addr) == | |||
615 | (r->addr.s_addr & r->mask.s_addr) && | |||
616 | kr->prefixlen >= mask2prefixlen(r->mask.s_addr)) { | |||
617 | *metric = depend_ok ? r->metric : | |||
618 | r->metric | MAX_METRIC65535; | |||
619 | return (r->type & REDIST_NO0x10 ? 0 : 1); | |||
620 | } | |||
621 | break; | |||
622 | case REDIST_DEFAULT0x20: | |||
623 | if (is_default) { | |||
624 | *metric = depend_ok ? r->metric : | |||
625 | r->metric | MAX_METRIC65535; | |||
626 | return (r->type & REDIST_NO0x10 ? 0 : 1); | |||
627 | } | |||
628 | break; | |||
629 | } | |||
630 | } | |||
631 | ||||
632 | return (0); | |||
633 | } | |||
634 | ||||
635 | int | |||
636 | ospf_reload(void) | |||
637 | { | |||
638 | struct area *area; | |||
639 | struct iface *iface; | |||
640 | struct ospfd_conf *xconf; | |||
641 | struct redistribute *r; | |||
642 | ||||
643 | if ((xconf = parse_config(conffile, ospfd_conf->opts)) == NULL((void*)0)) | |||
644 | return (-1); | |||
645 | ||||
646 | /* No router-id was specified, keep existing value */ | |||
647 | if (xconf->rtr_id.s_addr == 0) | |||
648 | xconf->rtr_id.s_addr = ospfd_conf->rtr_id.s_addr; | |||
649 | ||||
650 | /* Abort the reload if rtr_id changed */ | |||
651 | if (ospfd_conf->rtr_id.s_addr != xconf->rtr_id.s_addr) { | |||
652 | log_warnx("router-id changed: restart required"); | |||
653 | return (-1); | |||
654 | } | |||
655 | ||||
656 | /* send config to childs */ | |||
657 | if (ospf_sendboth(IMSG_RECONF_CONF, xconf, sizeof(*xconf)) == -1) | |||
658 | return (-1); | |||
659 | ||||
660 | /* send interfaces */ | |||
661 | LIST_FOREACH(area, &xconf->area_list, entry)for((area) = ((&xconf->area_list)->lh_first); (area )!= ((void*)0); (area) = ((area)->entry.le_next)) { | |||
662 | if (ospf_sendboth(IMSG_RECONF_AREA, area, sizeof(*area)) == -1) | |||
663 | return (-1); | |||
664 | ||||
665 | SIMPLEQ_FOREACH(r, &area->redist_list, entry)for((r) = ((&area->redist_list)->sqh_first); (r) != ((void*)0); (r) = ((r)->entry.sqe_next)) { | |||
666 | main_imsg_compose_rde(IMSG_RECONF_REDIST, 0, r, | |||
667 | sizeof(*r)); | |||
668 | } | |||
669 | LIST_FOREACH(iface, &area->iface_list, entry)for((iface) = ((&area->iface_list)->lh_first); (iface )!= ((void*)0); (iface) = ((iface)->entry.le_next)) { | |||
670 | if (ospf_sendboth(IMSG_RECONF_IFACE, iface, | |||
671 | sizeof(*iface)) == -1) | |||
672 | return (-1); | |||
673 | if (iface->auth_type == AUTH_CRYPT) | |||
674 | if (md_list_send(&iface->auth_md_list, | |||
675 | iev_ospfe) == -1) | |||
676 | return (-1); | |||
677 | } | |||
678 | } | |||
679 | ||||
680 | if (ospf_sendboth(IMSG_RECONF_END, NULL((void*)0), 0) == -1) | |||
681 | return (-1); | |||
682 | ||||
683 | merge_config(ospfd_conf, xconf); | |||
684 | /* update redistribute lists */ | |||
685 | kr_reload(ospfd_conf->redist_label_or_prefix); | |||
686 | return (0); | |||
687 | } | |||
688 | ||||
689 | int | |||
690 | ospf_sendboth(enum imsg_type type, void *buf, u_int16_t len) | |||
691 | { | |||
692 | if (imsg_compose_event(iev_ospfe, type, 0, 0, -1, buf, len) == -1) | |||
693 | return (-1); | |||
694 | if (imsg_compose_event(iev_rde, type, 0, 0, -1, buf, len) == -1) | |||
695 | return (-1); | |||
696 | return (0); | |||
697 | } | |||
698 | ||||
699 | void | |||
700 | merge_config(struct ospfd_conf *conf, struct ospfd_conf *xconf) | |||
701 | { | |||
702 | struct area *a, *xa, *na; | |||
703 | struct iface *iface; | |||
704 | struct redistribute *r; | |||
705 | int rchange = 0; | |||
706 | ||||
707 | conf->flags = xconf->flags; | |||
708 | conf->spf_delay = xconf->spf_delay; | |||
709 | conf->spf_hold_time = xconf->spf_hold_time; | |||
710 | if (SIMPLEQ_EMPTY(&conf->redist_list)(((&conf->redist_list)->sqh_first) == ((void*)0)) != | |||
711 | SIMPLEQ_EMPTY(&xconf->redist_list)(((&xconf->redist_list)->sqh_first) == ((void*)0))) | |||
712 | rchange = 1; | |||
713 | conf->rfc1583compat = xconf->rfc1583compat; | |||
714 | conf->redist_label_or_prefix = xconf->redist_label_or_prefix; | |||
715 | ||||
716 | if (ospfd_process == PROC_MAIN) { | |||
717 | /* main process does neither use areas nor interfaces */ | |||
718 | while ((r = SIMPLEQ_FIRST(&conf->redist_list)((&conf->redist_list)->sqh_first)) != NULL((void*)0)) { | |||
719 | 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); | |||
720 | free(r); | |||
721 | } | |||
722 | 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); | |||
723 | ||||
724 | /* adjust FIB priority if changed */ | |||
725 | if (conf->fib_priority != xconf->fib_priority) { | |||
726 | kr_fib_decouple(); | |||
727 | kr_fib_update_prio(xconf->fib_priority); | |||
728 | conf->fib_priority = xconf->fib_priority; | |||
729 | kr_fib_couple(); | |||
730 | } | |||
731 | ||||
732 | goto done; | |||
733 | } | |||
734 | ||||
735 | /* merge areas and interfaces */ | |||
736 | for (a = LIST_FIRST(&conf->area_list)((&conf->area_list)->lh_first); a != NULL((void*)0); a = na) { | |||
737 | na = LIST_NEXT(a, entry)((a)->entry.le_next); | |||
738 | /* find deleted areas */ | |||
739 | if ((xa = area_find(xconf, a->id)) == NULL((void*)0)) { | |||
740 | if (ospfd_process == PROC_OSPF_ENGINE) { | |||
741 | LIST_FOREACH(iface, &a->iface_list, entry)for((iface) = ((&a->iface_list)->lh_first); (iface) != ((void*)0); (iface) = ((iface)->entry.le_next)) | |||
742 | if_fsm(iface, IF_EVT_DOWN); | |||
743 | } | |||
744 | 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); | |||
745 | area_del(a); | |||
746 | } | |||
747 | } | |||
748 | ||||
749 | for (xa = LIST_FIRST(&xconf->area_list)((&xconf->area_list)->lh_first); xa != NULL((void*)0); xa = na) { | |||
750 | na = LIST_NEXT(xa, entry)((xa)->entry.le_next); | |||
751 | if ((a = area_find(conf, xa->id)) == NULL((void*)0)) { | |||
752 | 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); | |||
753 | 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); | |||
754 | if (ospfd_process == PROC_OSPF_ENGINE) { | |||
755 | /* start interfaces */ | |||
756 | ospfe_demote_area(xa, 0); | |||
757 | LIST_FOREACH(iface, &xa->iface_list, entry)for((iface) = ((&xa->iface_list)->lh_first); (iface )!= ((void*)0); (iface) = ((iface)->entry.le_next)) { | |||
758 | if_init(conf, iface); | |||
759 | if (if_fsm(iface, IF_EVT_UP)) { | |||
760 | log_debug("error starting " | |||
761 | "interface %s", | |||
762 | iface->name); | |||
763 | } | |||
764 | } | |||
765 | } | |||
766 | /* no need to merge interfaces */ | |||
767 | continue; | |||
768 | } | |||
769 | /* | |||
770 | * stub is not yet used but switching between stub and normal | |||
771 | * will be another painful job. | |||
772 | */ | |||
773 | if (a->stub != xa->stub && ospfd_process == PROC_OSPF_ENGINE) | |||
774 | a->dirty = 1; /* force rtr LSA update */ | |||
775 | if (xa->stub && ospfd_process == PROC_RDE_ENGINE) { | |||
776 | while ((r = SIMPLEQ_FIRST(&a->redist_list)((&a->redist_list)->sqh_first)) != NULL((void*)0)) { | |||
777 | 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); | |||
778 | free(r); | |||
779 | } | |||
780 | ||||
781 | 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); | |||
782 | } | |||
783 | ||||
784 | a->stub = xa->stub; | |||
785 | a->stub_default_cost = xa->stub_default_cost; | |||
786 | if (ospfd_process == PROC_RDE_ENGINE) | |||
787 | a->dirty = 1; /* force SPF tree recalculation */ | |||
788 | ||||
789 | /* merge interfaces */ | |||
790 | if (merge_interfaces(a, xa) && | |||
791 | ospfd_process == PROC_OSPF_ENGINE) | |||
792 | a->dirty = 1; /* force rtr LSA update */ | |||
793 | } | |||
794 | ||||
795 | if (ospfd_process == PROC_OSPF_ENGINE) { | |||
796 | LIST_FOREACH(a, &conf->area_list, entry)for((a) = ((&conf->area_list)->lh_first); (a)!= ((void *)0); (a) = ((a)->entry.le_next)) { | |||
797 | LIST_FOREACH(iface, &a->iface_list, entry)for((iface) = ((&a->iface_list)->lh_first); (iface) != ((void*)0); (iface) = ((iface)->entry.le_next)) { | |||
798 | if (iface->state == IF_STA_NEW0x00) { | |||
799 | iface->state = IF_STA_DOWN0x01; | |||
800 | if_init(conf, iface); | |||
801 | if (if_fsm(iface, IF_EVT_UP)) { | |||
802 | log_debug("error starting " | |||
803 | "interface %s", | |||
804 | iface->name); | |||
805 | } | |||
806 | } | |||
807 | } | |||
808 | if (a->dirty || rchange) { | |||
809 | a->dirty = 0; | |||
810 | orig_rtr_lsa(a); | |||
811 | } | |||
812 | } | |||
813 | } | |||
814 | if (ospfd_process == PROC_RDE_ENGINE) { | |||
815 | LIST_FOREACH(a, &conf->area_list, entry)for((a) = ((&conf->area_list)->lh_first); (a)!= ((void *)0); (a) = ((a)->entry.le_next)) { | |||
816 | if (a->dirty) { | |||
817 | start_spf_timer(); | |||
818 | break; | |||
819 | } | |||
820 | } | |||
821 | } | |||
822 | ||||
823 | done: | |||
824 | while ((a = LIST_FIRST(&xconf->area_list)((&xconf->area_list)->lh_first)) != NULL((void*)0)) { | |||
825 | 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); | |||
826 | area_del(a); | |||
827 | } | |||
828 | free(xconf); | |||
829 | } | |||
830 | ||||
831 | int | |||
832 | merge_interfaces(struct area *a, struct area *xa) | |||
833 | { | |||
834 | struct iface *i, *xi, *ni; | |||
835 | int dirty = 0; | |||
836 | ||||
837 | /* problems: | |||
838 | * - new interfaces (easy) | |||
839 | * - deleted interfaces | |||
840 | * - changing passive (painful?) | |||
841 | */ | |||
842 | for (i = LIST_FIRST(&a->iface_list)((&a->iface_list)->lh_first); i != NULL((void*)0); i = ni) { | |||
843 | ni = LIST_NEXT(i, entry)((i)->entry.le_next); | |||
844 | if (iface_lookup(xa, i) == NULL((void*)0)) { | |||
845 | log_debug("merge_interfaces: proc %d area %s removing " | |||
846 | "interface %s", ospfd_process, inet_ntoa(a->id), | |||
847 | i->name); | |||
848 | if (ospfd_process == PROC_OSPF_ENGINE) | |||
849 | if_fsm(i, IF_EVT_DOWN); | |||
850 | else if (ospfd_process == PROC_RDE_ENGINE) | |||
851 | rde_nbr_iface_del(i); | |||
852 | 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); | |||
853 | if_del(i); | |||
854 | dirty = 1; /* force rtr LSA update */ | |||
855 | } | |||
856 | } | |||
857 | ||||
858 | for (xi = LIST_FIRST(&xa->iface_list)((&xa->iface_list)->lh_first); xi != NULL((void*)0); xi = ni) { | |||
859 | ni = LIST_NEXT(xi, entry)((xi)->entry.le_next); | |||
860 | if ((i = iface_lookup(a, xi)) == NULL((void*)0)) { | |||
861 | /* new interface but delay initialisation */ | |||
862 | log_debug("merge_interfaces: proc %d area %s adding " | |||
863 | "interface %s", ospfd_process, inet_ntoa(a->id), | |||
864 | xi->name); | |||
865 | 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); | |||
866 | 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); | |||
867 | xi->area = a; | |||
868 | if (ospfd_process == PROC_OSPF_ENGINE) | |||
869 | xi->state = IF_STA_NEW0x00; | |||
870 | continue; | |||
871 | } | |||
872 | log_debug("merge_interfaces: proc %d area %s merging " | |||
873 | "interface %s", ospfd_process, inet_ntoa(a->id), i->name); | |||
874 | i->dst = xi->dst; | |||
875 | i->abr_id = xi->abr_id; | |||
876 | i->baudrate = xi->baudrate; | |||
877 | i->dead_interval = xi->dead_interval; | |||
878 | i->mtu = xi->mtu; | |||
879 | i->transmit_delay = xi->transmit_delay; | |||
880 | i->hello_interval = xi->hello_interval; | |||
881 | i->rxmt_interval = xi->rxmt_interval; | |||
882 | if (i->metric != xi->metric) | |||
883 | dirty = 1; | |||
884 | i->metric = xi->metric; | |||
885 | i->priority = xi->priority; | |||
886 | if (i->self) | |||
887 | i->self->priority = i->priority; | |||
888 | i->flags = xi->flags; /* needed? */ | |||
889 | i->if_type = xi->if_type; /* needed? */ | |||
890 | i->linkstate = xi->linkstate; /* needed? */ | |||
891 | ||||
892 | i->auth_type = xi->auth_type; | |||
893 | strncpy(i->auth_key, xi->auth_key, MAX_SIMPLE_AUTH_LEN8); | |||
894 | md_list_clr(&i->auth_md_list); | |||
895 | md_list_copy(&i->auth_md_list, &xi->auth_md_list); | |||
896 | ||||
897 | strlcpy(i->dependon, xi->dependon, | |||
898 | sizeof(i->dependon)); | |||
899 | i->depend_ok = xi->depend_ok; | |||
900 | ||||
901 | if (i->passive != xi->passive) { | |||
902 | /* need to restart interface to cope with this change */ | |||
903 | if (ospfd_process == PROC_OSPF_ENGINE) | |||
904 | if_fsm(i, IF_EVT_DOWN); | |||
905 | i->passive = xi->passive; | |||
906 | if (ospfd_process == PROC_OSPF_ENGINE) | |||
907 | if_fsm(i, IF_EVT_UP); | |||
908 | } | |||
909 | ||||
910 | if (i->type != xi->type) { | |||
911 | /* restart interface to enable or disable DR election */ | |||
912 | if (ospfd_process == PROC_OSPF_ENGINE) | |||
913 | if_fsm(i, IF_EVT_DOWN); | |||
914 | i->type = xi->type; | |||
915 | if (ospfd_process == PROC_OSPF_ENGINE) | |||
916 | if_fsm(i, IF_EVT_UP); | |||
917 | } | |||
918 | } | |||
919 | return (dirty); | |||
920 | } | |||
921 | ||||
922 | struct iface * | |||
923 | iface_lookup(struct area *area, struct iface *iface) | |||
924 | { | |||
925 | struct iface *i; | |||
926 | ||||
927 | LIST_FOREACH(i, &area->iface_list, entry)for((i) = ((&area->iface_list)->lh_first); (i)!= (( void*)0); (i) = ((i)->entry.le_next)) | |||
928 | if (i->ifindex == iface->ifindex && | |||
929 | i->addr.s_addr == iface->addr.s_addr && | |||
930 | i->mask.s_addr == iface->mask.s_addr) | |||
931 | return (i); | |||
932 | return (NULL((void*)0)); | |||
933 | } | |||
934 | ||||
935 | int | |||
936 | ifstate_is_up(struct kif *kif) | |||
937 | { | |||
938 | if (!(kif->flags & IFF_UP0x1)) | |||
939 | return (0); | |||
940 | if (kif->if_type == IFT_CARP0xf7 && | |||
941 | kif->link_state == LINK_STATE_UNKNOWN0) | |||
942 | return (0); | |||
943 | return LINK_STATE_IS_UP(kif->link_state)((kif->link_state) >= 4 || (kif->link_state) == 0); | |||
944 | } |