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8429abe0 RW |
1 | /* $OpenBSD$ */ |
2 | ||
3 | /* | |
4 | * Copyright (c) 2013, 2016 Renato Westphal <renato@openbsd.org> | |
5 | * Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org> | |
6 | * Copyright (c) 2004, 2008 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 | ||
eac6e3f0 | 22 | #include <zebra.h> |
8429abe0 | 23 | #include <sys/wait.h> |
8429abe0 RW |
24 | |
25 | #include "ldpd.h" | |
26 | #include "ldpe.h" | |
27 | #include "lde.h" | |
28 | #include "log.h" | |
eac6e3f0 RW |
29 | #include "ldp_vty.h" |
30 | #include "ldp_debug.h" | |
31 | ||
32 | #include <lib/version.h> | |
33 | #include <lib/log.h> | |
34 | #include "getopt.h" | |
35 | #include "vty.h" | |
36 | #include "command.h" | |
37 | #include "memory.h" | |
38 | #include "privs.h" | |
39 | #include "sigevent.h" | |
40 | #include "zclient.h" | |
41 | #include "vrf.h" | |
4af8997d | 42 | #include "qobj.h" |
eac6e3f0 RW |
43 | |
44 | static void ldpd_shutdown(void); | |
45 | static pid_t start_child(enum ldpd_process, char *, int, | |
46 | const char *, const char *); | |
47 | static int main_dispatch_ldpe(struct thread *); | |
48 | static int main_dispatch_lde(struct thread *); | |
8429abe0 RW |
49 | static int main_imsg_send_ipc_sockets(struct imsgbuf *, |
50 | struct imsgbuf *); | |
51 | static void main_imsg_send_net_sockets(int); | |
52 | static void main_imsg_send_net_socket(int, enum socket_type); | |
53 | static int main_imsg_send_config(struct ldpd_conf *); | |
b67c140b RW |
54 | static void ldp_config_normalize(struct ldpd_conf *, void **); |
55 | static void ldp_config_reset_main(struct ldpd_conf *, void **); | |
56 | static void ldp_config_reset_af(struct ldpd_conf *, int, void **); | |
57 | static void merge_config_ref(struct ldpd_conf *, struct ldpd_conf *, void **); | |
8429abe0 RW |
58 | static void merge_global(struct ldpd_conf *, struct ldpd_conf *); |
59 | static void merge_af(int, struct ldpd_af_conf *, | |
60 | struct ldpd_af_conf *); | |
b67c140b | 61 | static void merge_ifaces(struct ldpd_conf *, struct ldpd_conf *, void **); |
8429abe0 | 62 | static void merge_iface_af(struct iface_af *, struct iface_af *); |
b67c140b RW |
63 | static void merge_tnbrs(struct ldpd_conf *, struct ldpd_conf *, void **); |
64 | static void merge_nbrps(struct ldpd_conf *, struct ldpd_conf *, void **); | |
65 | static void merge_l2vpns(struct ldpd_conf *, struct ldpd_conf *, void **); | |
8429abe0 | 66 | static void merge_l2vpn(struct ldpd_conf *, struct l2vpn *, |
b67c140b | 67 | struct l2vpn *, void **); |
8429abe0 | 68 | |
4af8997d RW |
69 | DEFINE_QOBJ_TYPE(iface) |
70 | DEFINE_QOBJ_TYPE(tnbr) | |
71 | DEFINE_QOBJ_TYPE(nbr_params) | |
72 | DEFINE_QOBJ_TYPE(l2vpn_if) | |
73 | DEFINE_QOBJ_TYPE(l2vpn_pw) | |
74 | DEFINE_QOBJ_TYPE(l2vpn) | |
75 | DEFINE_QOBJ_TYPE(ldpd_conf) | |
76 | ||
8429abe0 RW |
77 | struct ldpd_global global; |
78 | struct ldpd_conf *ldpd_conf; | |
79 | ||
8429abe0 RW |
80 | static struct imsgev *iev_ldpe; |
81 | static struct imsgev *iev_lde; | |
82 | static pid_t ldpe_pid; | |
83 | static pid_t lde_pid; | |
84 | ||
eac6e3f0 RW |
85 | #define LDP_DEFAULT_CONFIG "ldpd.conf" |
86 | #define LDP_VTY_PORT 2612 | |
87 | ||
88 | /* Master of threads. */ | |
89 | struct thread_master *master; | |
90 | ||
91 | /* Process ID saved for use by init system */ | |
92 | static const char *pid_file = PATH_LDPD_PID; | |
93 | ||
94 | /* Configuration filename and directory. */ | |
95 | static char config_default[] = SYSCONFDIR LDP_DEFAULT_CONFIG; | |
96 | ||
97 | /* ldpd privileges */ | |
98 | static zebra_capabilities_t _caps_p [] = | |
8429abe0 | 99 | { |
eac6e3f0 RW |
100 | ZCAP_BIND, |
101 | ZCAP_NET_ADMIN | |
102 | }; | |
103 | ||
104 | struct zebra_privs_t ldpd_privs = | |
105 | { | |
106 | #if defined(QUAGGA_USER) && defined(QUAGGA_GROUP) | |
107 | .user = QUAGGA_USER, | |
108 | .group = QUAGGA_GROUP, | |
109 | #endif | |
110 | #if defined(VTY_GROUP) | |
111 | .vty_group = VTY_GROUP, | |
112 | #endif | |
113 | .caps_p = _caps_p, | |
114 | .cap_num_p = array_size(_caps_p), | |
115 | .cap_num_i = 0 | |
116 | }; | |
117 | ||
118 | /* LDPd options. */ | |
119 | static struct option longopts[] = | |
120 | { | |
121 | { "daemon", no_argument, NULL, 'd'}, | |
122 | { "config_file", required_argument, NULL, 'f'}, | |
123 | { "pid_file", required_argument, NULL, 'i'}, | |
124 | { "socket", required_argument, NULL, 'z'}, | |
125 | { "dryrun", no_argument, NULL, 'C'}, | |
126 | { "help", no_argument, NULL, 'h'}, | |
127 | { "vty_addr", required_argument, NULL, 'A'}, | |
128 | { "vty_port", required_argument, NULL, 'P'}, | |
129 | { "user", required_argument, NULL, 'u'}, | |
130 | { "group", required_argument, NULL, 'g'}, | |
131 | { "version", no_argument, NULL, 'v'}, | |
132 | { 0 } | |
133 | }; | |
134 | ||
135 | /* Help information display. */ | |
136 | static void __attribute__ ((noreturn)) | |
137 | usage(char *progname, int status) | |
138 | { | |
139 | if (status != 0) | |
140 | fprintf(stderr, "Try `%s --help' for more information.\n", | |
141 | progname); | |
142 | else { | |
143 | printf("Usage : %s [OPTION...]\n\ | |
144 | Daemon which manages LDP.\n\n\ | |
145 | -d, --daemon Runs in daemon mode\n\ | |
146 | -f, --config_file Set configuration file name\n\ | |
147 | -i, --pid_file Set process identifier file name\n\ | |
148 | -z, --socket Set path of zebra socket\n\ | |
149 | -A, --vty_addr Set vty's bind address\n\ | |
150 | -P, --vty_port Set vty's port number\n\ | |
151 | -u, --user User to run as\n\ | |
152 | -g, --group Group to run as\n\ | |
153 | -v, --version Print program version\n\ | |
154 | -C, --dryrun Check configuration for validity and exit\n\ | |
155 | -h, --help Display this help and exit\n\ | |
156 | \n\ | |
157 | Report bugs to %s\n", progname, ZEBRA_BUG_ADDRESS); | |
8429abe0 | 158 | } |
eac6e3f0 RW |
159 | |
160 | exit(status); | |
8429abe0 RW |
161 | } |
162 | ||
eac6e3f0 RW |
163 | /* SIGHUP handler. */ |
164 | static void | |
165 | sighup(void) | |
166 | { | |
167 | log_info("SIGHUP received"); | |
168 | } | |
169 | ||
170 | /* SIGINT / SIGTERM handler. */ | |
171 | static void | |
172 | sigint(void) | |
8429abe0 | 173 | { |
eac6e3f0 RW |
174 | log_info("SIGINT received"); |
175 | ldpd_shutdown(); | |
176 | } | |
8429abe0 | 177 | |
eac6e3f0 RW |
178 | /* SIGUSR1 handler. */ |
179 | static void | |
180 | sigusr1(void) | |
181 | { | |
182 | zlog_rotate(NULL); | |
8429abe0 RW |
183 | } |
184 | ||
eac6e3f0 RW |
185 | static struct quagga_signal_t ldp_signals[] = |
186 | { | |
187 | { | |
188 | .signal = SIGHUP, | |
189 | .handler = &sighup, | |
190 | }, | |
191 | { | |
192 | .signal = SIGINT, | |
193 | .handler = &sigint, | |
194 | }, | |
195 | { | |
196 | .signal = SIGTERM, | |
197 | .handler = &sigint, | |
198 | }, | |
199 | { | |
200 | .signal = SIGUSR1, | |
201 | .handler = &sigusr1, | |
202 | } | |
203 | }; | |
204 | ||
8429abe0 RW |
205 | int |
206 | main(int argc, char *argv[]) | |
207 | { | |
8429abe0 | 208 | char *saved_argv0; |
eac6e3f0 | 209 | int lflag = 0, eflag = 0; |
8429abe0 RW |
210 | int pipe_parent2ldpe[2]; |
211 | int pipe_parent2lde[2]; | |
eac6e3f0 RW |
212 | char *p; |
213 | char *vty_addr = NULL; | |
214 | int vty_port = LDP_VTY_PORT; | |
215 | int daemon_mode = 0; | |
216 | const char *user = NULL; | |
217 | const char *group = NULL; | |
218 | char *config_file = NULL; | |
219 | char *progname; | |
220 | struct thread thread; | |
221 | int dryrun = 0; | |
8429abe0 | 222 | |
8429abe0 RW |
223 | ldpd_process = PROC_MAIN; |
224 | ||
eac6e3f0 RW |
225 | /* Set umask before anything for security */ |
226 | umask(0027); | |
227 | ||
228 | /* get program name */ | |
229 | progname = ((p = strrchr(argv[0], '/')) ? ++p : argv[0]); | |
8429abe0 RW |
230 | |
231 | saved_argv0 = argv[0]; | |
232 | if (saved_argv0 == NULL) | |
eac6e3f0 | 233 | saved_argv0 = (char *)"ldpd"; |
8429abe0 | 234 | |
eac6e3f0 RW |
235 | while (1) { |
236 | int opt; | |
237 | ||
238 | opt = getopt_long(argc, argv, "df:i:z:hA:P:u:g:vCLE", | |
239 | longopts, 0); | |
240 | ||
241 | if (opt == EOF) | |
8429abe0 | 242 | break; |
eac6e3f0 RW |
243 | |
244 | switch (opt) { | |
245 | case 0: | |
246 | break; | |
247 | case 'd': | |
248 | daemon_mode = 1; | |
8429abe0 RW |
249 | break; |
250 | case 'f': | |
eac6e3f0 RW |
251 | config_file = optarg; |
252 | break; | |
253 | case 'A': | |
254 | vty_addr = optarg; | |
255 | break; | |
256 | case 'i': | |
257 | pid_file = optarg; | |
258 | break; | |
259 | case 'z': | |
260 | zclient_serv_path_set(optarg); | |
261 | break; | |
262 | case 'P': | |
263 | /* | |
264 | * Deal with atoi() returning 0 on failure, and ldpd | |
265 | * not listening on ldpd port. | |
266 | */ | |
267 | if (strcmp(optarg, "0") == 0) { | |
268 | vty_port = 0; | |
269 | break; | |
270 | } | |
271 | vty_port = atoi(optarg); | |
272 | if (vty_port <= 0 || vty_port > 0xffff) | |
273 | vty_port = LDP_VTY_PORT; | |
274 | break; | |
275 | case 'u': | |
276 | user = optarg; | |
8429abe0 | 277 | break; |
eac6e3f0 RW |
278 | case 'g': |
279 | group = optarg; | |
8429abe0 RW |
280 | break; |
281 | case 'v': | |
eac6e3f0 RW |
282 | print_version(progname); |
283 | exit(0); | |
284 | break; | |
285 | case 'C': | |
286 | dryrun = 1; | |
287 | break; | |
288 | case 'h': | |
289 | usage(progname, 0); | |
8429abe0 RW |
290 | break; |
291 | case 'L': | |
292 | lflag = 1; | |
293 | break; | |
294 | case 'E': | |
295 | eflag = 1; | |
296 | break; | |
297 | default: | |
eac6e3f0 RW |
298 | usage(progname, 1); |
299 | break; | |
8429abe0 RW |
300 | } |
301 | } | |
302 | ||
303 | argc -= optind; | |
304 | argv += optind; | |
305 | if (argc > 0 || (lflag && eflag)) | |
eac6e3f0 | 306 | usage(progname, 1); |
8429abe0 | 307 | |
eac6e3f0 RW |
308 | /* check for root privileges */ |
309 | if (geteuid() != 0) { | |
310 | errno = EPERM; | |
311 | perror(progname); | |
8429abe0 RW |
312 | exit(1); |
313 | } | |
314 | ||
eac6e3f0 RW |
315 | zlog_default = openzlog(progname, ZLOG_LDP, 0, |
316 | LOG_CONS | LOG_NDELAY | LOG_PID, LOG_DAEMON); | |
8429abe0 | 317 | |
eac6e3f0 RW |
318 | if (lflag) |
319 | lde(user, group); | |
320 | else if (eflag) | |
321 | ldpe(user, group); | |
8429abe0 | 322 | |
eac6e3f0 | 323 | master = thread_master_create(); |
8429abe0 | 324 | |
eac6e3f0 | 325 | cmd_init(1); |
0b47280e | 326 | vty_config_lockless (); |
eac6e3f0 RW |
327 | vty_init(master); |
328 | vrf_init(); | |
329 | ldp_vty_init(); | |
330 | ldp_vty_if_init(); | |
8429abe0 | 331 | |
eac6e3f0 RW |
332 | /* Get configuration file. */ |
333 | ldpd_conf = config_new_empty(); | |
b67c140b | 334 | ldp_config_reset_main(ldpd_conf, NULL); |
eac6e3f0 | 335 | vty_read_config(config_file, config_default); |
8429abe0 | 336 | |
eac6e3f0 RW |
337 | /* Start execution only if not in dry-run mode */ |
338 | if (dryrun) | |
339 | exit(0); | |
340 | ||
4af8997d RW |
341 | QOBJ_REG (ldpd_conf, ldpd_conf); |
342 | ||
eac6e3f0 RW |
343 | if (daemon_mode && daemon(0, 0) < 0) { |
344 | log_warn("LDPd daemon failed"); | |
345 | exit(1); | |
346 | } | |
8429abe0 | 347 | |
eac6e3f0 | 348 | if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe_parent2ldpe) == -1) |
8429abe0 | 349 | fatal("socketpair"); |
eac6e3f0 | 350 | if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe_parent2lde) == -1) |
8429abe0 | 351 | fatal("socketpair"); |
eac6e3f0 RW |
352 | sock_set_nonblock(pipe_parent2ldpe[0]); |
353 | sock_set_cloexec(pipe_parent2ldpe[0]); | |
354 | sock_set_nonblock(pipe_parent2ldpe[1]); | |
355 | sock_set_cloexec(pipe_parent2ldpe[1]); | |
356 | sock_set_nonblock(pipe_parent2lde[0]); | |
357 | sock_set_cloexec(pipe_parent2lde[0]); | |
358 | sock_set_nonblock(pipe_parent2lde[1]); | |
359 | sock_set_cloexec(pipe_parent2lde[1]); | |
8429abe0 RW |
360 | |
361 | /* start children */ | |
362 | lde_pid = start_child(PROC_LDE_ENGINE, saved_argv0, | |
eac6e3f0 | 363 | pipe_parent2lde[1], user, group); |
8429abe0 | 364 | ldpe_pid = start_child(PROC_LDP_ENGINE, saved_argv0, |
eac6e3f0 | 365 | pipe_parent2ldpe[1], user, group); |
8429abe0 | 366 | |
eac6e3f0 RW |
367 | /* drop privileges */ |
368 | if (user) | |
369 | ldpd_privs.user = user; | |
370 | if (group) | |
371 | ldpd_privs.group = group; | |
372 | zprivs_init(&ldpd_privs); | |
8429abe0 RW |
373 | |
374 | /* setup signal handler */ | |
eac6e3f0 RW |
375 | signal_init(master, array_size(ldp_signals), ldp_signals); |
376 | ||
377 | /* library inits */ | |
378 | ldp_zebra_init(master); | |
8429abe0 RW |
379 | |
380 | /* setup pipes to children */ | |
381 | if ((iev_ldpe = malloc(sizeof(struct imsgev))) == NULL || | |
382 | (iev_lde = malloc(sizeof(struct imsgev))) == NULL) | |
383 | fatal(NULL); | |
384 | imsg_init(&iev_ldpe->ibuf, pipe_parent2ldpe[0]); | |
eac6e3f0 RW |
385 | iev_ldpe->handler_read = main_dispatch_ldpe; |
386 | iev_ldpe->ev_read = thread_add_read(master, iev_ldpe->handler_read, | |
387 | iev_ldpe, iev_ldpe->ibuf.fd); | |
388 | iev_ldpe->handler_write = ldp_write_handler; | |
389 | iev_ldpe->ev_write = NULL; | |
8429abe0 | 390 | |
eac6e3f0 RW |
391 | imsg_init(&iev_lde->ibuf, pipe_parent2lde[0]); |
392 | iev_lde->handler_read = main_dispatch_lde; | |
393 | iev_lde->ev_read = thread_add_read(master, iev_lde->handler_read, | |
394 | iev_lde, iev_lde->ibuf.fd); | |
395 | iev_lde->handler_write = ldp_write_handler; | |
396 | iev_lde->ev_write = NULL; | |
8429abe0 RW |
397 | |
398 | if (main_imsg_send_ipc_sockets(&iev_ldpe->ibuf, &iev_lde->ibuf)) | |
399 | fatal("could not establish imsg links"); | |
eac6e3f0 RW |
400 | main_imsg_compose_both(IMSG_DEBUG_UPDATE, &ldp_debug, |
401 | sizeof(ldp_debug)); | |
8429abe0 RW |
402 | main_imsg_send_config(ldpd_conf); |
403 | ||
8429abe0 RW |
404 | if (ldpd_conf->ipv4.flags & F_LDPD_AF_ENABLED) |
405 | main_imsg_send_net_sockets(AF_INET); | |
406 | if (ldpd_conf->ipv6.flags & F_LDPD_AF_ENABLED) | |
407 | main_imsg_send_net_sockets(AF_INET6); | |
408 | ||
eac6e3f0 RW |
409 | /* Process id file create. */ |
410 | pid_output(pid_file); | |
8429abe0 | 411 | |
eac6e3f0 RW |
412 | /* Create VTY socket */ |
413 | vty_serv_sock(vty_addr, vty_port, LDP_VTYSH_PATH); | |
414 | ||
415 | /* Print banner. */ | |
416 | log_notice("LDPd %s starting: vty@%d", QUAGGA_VERSION, vty_port); | |
417 | ||
418 | /* Fetch next active thread. */ | |
419 | while (thread_fetch(master, &thread)) | |
420 | thread_call(&thread); | |
8429abe0 | 421 | |
8429abe0 RW |
422 | /* NOTREACHED */ |
423 | return (0); | |
424 | } | |
425 | ||
eac6e3f0 | 426 | static void |
8429abe0 RW |
427 | ldpd_shutdown(void) |
428 | { | |
429 | pid_t pid; | |
430 | int status; | |
431 | ||
432 | /* close pipes */ | |
433 | msgbuf_clear(&iev_ldpe->ibuf.w); | |
434 | close(iev_ldpe->ibuf.fd); | |
435 | msgbuf_clear(&iev_lde->ibuf.w); | |
436 | close(iev_lde->ibuf.fd); | |
437 | ||
8429abe0 RW |
438 | config_clear(ldpd_conf); |
439 | ||
440 | log_debug("waiting for children to terminate"); | |
441 | do { | |
442 | pid = wait(&status); | |
443 | if (pid == -1) { | |
444 | if (errno != EINTR && errno != ECHILD) | |
445 | fatal("wait"); | |
446 | } else if (WIFSIGNALED(status)) | |
447 | log_warnx("%s terminated; signal %d", | |
448 | (pid == lde_pid) ? "label decision engine" : | |
449 | "ldp engine", WTERMSIG(status)); | |
450 | } while (pid != -1 || (pid == -1 && errno == EINTR)); | |
451 | ||
452 | free(iev_ldpe); | |
453 | free(iev_lde); | |
454 | ||
455 | log_info("terminating"); | |
456 | exit(0); | |
457 | } | |
458 | ||
459 | static pid_t | |
eac6e3f0 RW |
460 | start_child(enum ldpd_process p, char *argv0, int fd, const char *user, |
461 | const char *group) | |
8429abe0 | 462 | { |
eac6e3f0 | 463 | char *argv[7]; |
8429abe0 RW |
464 | int argc = 0; |
465 | pid_t pid; | |
466 | ||
467 | switch (pid = fork()) { | |
468 | case -1: | |
469 | fatal("cannot fork"); | |
470 | case 0: | |
471 | break; | |
472 | default: | |
473 | close(fd); | |
474 | return (pid); | |
475 | } | |
476 | ||
477 | if (dup2(fd, 3) == -1) | |
478 | fatal("cannot setup imsg fd"); | |
479 | ||
480 | argv[argc++] = argv0; | |
481 | switch (p) { | |
482 | case PROC_MAIN: | |
483 | fatalx("Can not start main process"); | |
484 | case PROC_LDE_ENGINE: | |
eac6e3f0 | 485 | argv[argc++] = (char *)"-L"; |
8429abe0 RW |
486 | break; |
487 | case PROC_LDP_ENGINE: | |
eac6e3f0 | 488 | argv[argc++] = (char *)"-E"; |
8429abe0 RW |
489 | break; |
490 | } | |
eac6e3f0 RW |
491 | if (user) { |
492 | argv[argc++] = (char *)"-u"; | |
493 | argv[argc++] = (char *)user; | |
494 | } | |
495 | if (group) { | |
496 | argv[argc++] = (char *)"-g"; | |
497 | argv[argc++] = (char *)group; | |
498 | } | |
8429abe0 RW |
499 | argv[argc++] = NULL; |
500 | ||
501 | execvp(argv0, argv); | |
502 | fatal("execvp"); | |
503 | } | |
504 | ||
505 | /* imsg handling */ | |
506 | /* ARGSUSED */ | |
eac6e3f0 RW |
507 | static int |
508 | main_dispatch_ldpe(struct thread *thread) | |
8429abe0 | 509 | { |
eac6e3f0 | 510 | struct imsgev *iev = THREAD_ARG(thread); |
8429abe0 RW |
511 | struct imsgbuf *ibuf = &iev->ibuf; |
512 | struct imsg imsg; | |
513 | int af; | |
514 | ssize_t n; | |
eac6e3f0 | 515 | int shut = 0; |
8429abe0 | 516 | |
eac6e3f0 RW |
517 | iev->ev_read = NULL; |
518 | ||
519 | if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN) | |
520 | fatal("imsg_read error"); | |
521 | if (n == 0) /* connection closed */ | |
522 | shut = 1; | |
8429abe0 RW |
523 | |
524 | for (;;) { | |
525 | if ((n = imsg_get(ibuf, &imsg)) == -1) | |
526 | fatal("imsg_get"); | |
527 | ||
528 | if (n == 0) | |
529 | break; | |
530 | ||
531 | switch (imsg.hdr.type) { | |
eac6e3f0 RW |
532 | case IMSG_LOG: |
533 | logit(imsg.hdr.pid, "%s", (const char *)imsg.data); | |
534 | break; | |
8429abe0 RW |
535 | case IMSG_REQUEST_SOCKETS: |
536 | af = imsg.hdr.pid; | |
537 | main_imsg_send_net_sockets(af); | |
538 | break; | |
8429abe0 RW |
539 | default: |
540 | log_debug("%s: error handling imsg %d", __func__, | |
541 | imsg.hdr.type); | |
542 | break; | |
543 | } | |
544 | imsg_free(&imsg); | |
545 | } | |
546 | if (!shut) | |
547 | imsg_event_add(iev); | |
548 | else { | |
eac6e3f0 RW |
549 | /* this pipe is dead, so remove the event handlers and exit */ |
550 | THREAD_READ_OFF(iev->ev_read); | |
551 | THREAD_WRITE_OFF(iev->ev_write); | |
552 | ldpe_pid = 0; | |
553 | if (lde_pid == 0) | |
554 | ldpd_shutdown(); | |
555 | else | |
556 | kill(lde_pid, SIGTERM); | |
8429abe0 | 557 | } |
eac6e3f0 RW |
558 | |
559 | return (0); | |
8429abe0 RW |
560 | } |
561 | ||
562 | /* ARGSUSED */ | |
eac6e3f0 RW |
563 | static int |
564 | main_dispatch_lde(struct thread *thread) | |
8429abe0 | 565 | { |
eac6e3f0 | 566 | struct imsgev *iev = THREAD_ARG(thread); |
8429abe0 RW |
567 | struct imsgbuf *ibuf = &iev->ibuf; |
568 | struct imsg imsg; | |
569 | ssize_t n; | |
570 | int shut = 0; | |
571 | ||
eac6e3f0 RW |
572 | iev->ev_read = NULL; |
573 | ||
574 | if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN) | |
575 | fatal("imsg_read error"); | |
576 | if (n == 0) /* connection closed */ | |
577 | shut = 1; | |
8429abe0 RW |
578 | |
579 | for (;;) { | |
580 | if ((n = imsg_get(ibuf, &imsg)) == -1) | |
581 | fatal("imsg_get"); | |
582 | ||
583 | if (n == 0) | |
584 | break; | |
585 | ||
586 | switch (imsg.hdr.type) { | |
eac6e3f0 RW |
587 | case IMSG_LOG: |
588 | logit(imsg.hdr.pid, "%s", (const char *)imsg.data); | |
589 | break; | |
8429abe0 RW |
590 | case IMSG_KLABEL_CHANGE: |
591 | if (imsg.hdr.len - IMSG_HEADER_SIZE != | |
592 | sizeof(struct kroute)) | |
593 | fatalx("invalid size of IMSG_KLABEL_CHANGE"); | |
594 | if (kr_change(imsg.data)) | |
595 | log_warnx("%s: error changing route", __func__); | |
596 | break; | |
597 | case IMSG_KLABEL_DELETE: | |
598 | if (imsg.hdr.len - IMSG_HEADER_SIZE != | |
599 | sizeof(struct kroute)) | |
600 | fatalx("invalid size of IMSG_KLABEL_DELETE"); | |
601 | if (kr_delete(imsg.data)) | |
602 | log_warnx("%s: error deleting route", __func__); | |
603 | break; | |
604 | case IMSG_KPWLABEL_CHANGE: | |
605 | if (imsg.hdr.len - IMSG_HEADER_SIZE != | |
606 | sizeof(struct kpw)) | |
607 | fatalx("invalid size of IMSG_KPWLABEL_CHANGE"); | |
608 | if (kmpw_set(imsg.data)) | |
609 | log_warnx("%s: error changing pseudowire", | |
610 | __func__); | |
611 | break; | |
612 | case IMSG_KPWLABEL_DELETE: | |
613 | if (imsg.hdr.len - IMSG_HEADER_SIZE != | |
614 | sizeof(struct kpw)) | |
615 | fatalx("invalid size of IMSG_KPWLABEL_DELETE"); | |
616 | if (kmpw_unset(imsg.data)) | |
617 | log_warnx("%s: error unsetting pseudowire", | |
618 | __func__); | |
619 | break; | |
620 | default: | |
621 | log_debug("%s: error handling imsg %d", __func__, | |
622 | imsg.hdr.type); | |
623 | break; | |
624 | } | |
625 | imsg_free(&imsg); | |
626 | } | |
627 | if (!shut) | |
628 | imsg_event_add(iev); | |
629 | else { | |
eac6e3f0 RW |
630 | /* this pipe is dead, so remove the event handlers and exit */ |
631 | THREAD_READ_OFF(iev->ev_read); | |
632 | THREAD_WRITE_OFF(iev->ev_write); | |
633 | lde_pid = 0; | |
634 | if (ldpe_pid == 0) | |
635 | ldpd_shutdown(); | |
636 | else | |
637 | kill(ldpe_pid, SIGTERM); | |
8429abe0 | 638 | } |
eac6e3f0 RW |
639 | |
640 | return (0); | |
641 | } | |
642 | ||
643 | /* ARGSUSED */ | |
644 | int | |
645 | ldp_write_handler(struct thread *thread) | |
646 | { | |
647 | struct imsgev *iev = THREAD_ARG(thread); | |
648 | struct imsgbuf *ibuf = &iev->ibuf; | |
649 | ssize_t n; | |
650 | ||
651 | iev->ev_write = NULL; | |
652 | ||
653 | if ((n = msgbuf_write(&ibuf->w)) == -1 && errno != EAGAIN) | |
654 | fatal("msgbuf_write"); | |
655 | if (n == 0) { | |
656 | /* this pipe is dead, so remove the event handlers */ | |
657 | THREAD_READ_OFF(iev->ev_read); | |
658 | THREAD_WRITE_OFF(iev->ev_write); | |
659 | return (0); | |
660 | } | |
661 | ||
662 | imsg_event_add(iev); | |
663 | ||
664 | return (0); | |
8429abe0 RW |
665 | } |
666 | ||
667 | void | |
668 | main_imsg_compose_ldpe(int type, pid_t pid, void *data, uint16_t datalen) | |
669 | { | |
670 | if (iev_ldpe == NULL) | |
671 | return; | |
672 | imsg_compose_event(iev_ldpe, type, 0, pid, -1, data, datalen); | |
673 | } | |
674 | ||
675 | void | |
676 | main_imsg_compose_lde(int type, pid_t pid, void *data, uint16_t datalen) | |
677 | { | |
678 | imsg_compose_event(iev_lde, type, 0, pid, -1, data, datalen); | |
679 | } | |
680 | ||
eac6e3f0 | 681 | int |
8429abe0 RW |
682 | main_imsg_compose_both(enum imsg_type type, void *buf, uint16_t len) |
683 | { | |
eac6e3f0 RW |
684 | if (iev_ldpe == NULL || iev_lde == NULL) |
685 | return (0); | |
8429abe0 RW |
686 | if (imsg_compose_event(iev_ldpe, type, 0, 0, -1, buf, len) == -1) |
687 | return (-1); | |
688 | if (imsg_compose_event(iev_lde, type, 0, 0, -1, buf, len) == -1) | |
689 | return (-1); | |
690 | return (0); | |
691 | } | |
692 | ||
693 | void | |
694 | imsg_event_add(struct imsgev *iev) | |
695 | { | |
eac6e3f0 RW |
696 | THREAD_READ_ON(master, iev->ev_read, iev->handler_read, iev, |
697 | iev->ibuf.fd); | |
8429abe0 | 698 | |
eac6e3f0 RW |
699 | if (iev->ibuf.w.queued) |
700 | THREAD_WRITE_ON(master, iev->ev_write, iev->handler_write, iev, | |
701 | iev->ibuf.fd); | |
8429abe0 RW |
702 | } |
703 | ||
704 | int | |
705 | imsg_compose_event(struct imsgev *iev, uint16_t type, uint32_t peerid, | |
706 | pid_t pid, int fd, void *data, uint16_t datalen) | |
707 | { | |
708 | int ret; | |
709 | ||
710 | if ((ret = imsg_compose(&iev->ibuf, type, peerid, | |
711 | pid, fd, data, datalen)) != -1) | |
712 | imsg_event_add(iev); | |
713 | return (ret); | |
714 | } | |
715 | ||
716 | void | |
717 | evbuf_enqueue(struct evbuf *eb, struct ibuf *buf) | |
718 | { | |
719 | ibuf_close(&eb->wbuf, buf); | |
720 | evbuf_event_add(eb); | |
721 | } | |
722 | ||
723 | void | |
724 | evbuf_event_add(struct evbuf *eb) | |
725 | { | |
726 | if (eb->wbuf.queued) | |
eac6e3f0 RW |
727 | THREAD_WRITE_ON(master, eb->ev, eb->handler, eb->arg, |
728 | eb->wbuf.fd); | |
8429abe0 RW |
729 | } |
730 | ||
731 | void | |
eac6e3f0 | 732 | evbuf_init(struct evbuf *eb, int fd, int (*handler)(struct thread *), |
8429abe0 RW |
733 | void *arg) |
734 | { | |
735 | msgbuf_init(&eb->wbuf); | |
736 | eb->wbuf.fd = fd; | |
eac6e3f0 RW |
737 | eb->handler = handler; |
738 | eb->arg = arg; | |
8429abe0 RW |
739 | } |
740 | ||
741 | void | |
742 | evbuf_clear(struct evbuf *eb) | |
743 | { | |
eac6e3f0 | 744 | THREAD_WRITE_OFF(eb->ev); |
8429abe0 RW |
745 | msgbuf_clear(&eb->wbuf); |
746 | eb->wbuf.fd = -1; | |
747 | } | |
748 | ||
749 | static int | |
750 | main_imsg_send_ipc_sockets(struct imsgbuf *ldpe_buf, struct imsgbuf *lde_buf) | |
751 | { | |
752 | int pipe_ldpe2lde[2]; | |
753 | ||
eac6e3f0 | 754 | if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe_ldpe2lde) == -1) |
8429abe0 | 755 | return (-1); |
eac6e3f0 RW |
756 | sock_set_nonblock(pipe_ldpe2lde[0]); |
757 | sock_set_nonblock(pipe_ldpe2lde[1]); | |
8429abe0 RW |
758 | |
759 | if (imsg_compose(ldpe_buf, IMSG_SOCKET_IPC, 0, 0, pipe_ldpe2lde[0], | |
760 | NULL, 0) == -1) | |
761 | return (-1); | |
762 | if (imsg_compose(lde_buf, IMSG_SOCKET_IPC, 0, 0, pipe_ldpe2lde[1], | |
763 | NULL, 0) == -1) | |
764 | return (-1); | |
765 | ||
766 | return (0); | |
767 | } | |
768 | ||
769 | static void | |
770 | main_imsg_send_net_sockets(int af) | |
771 | { | |
eac6e3f0 RW |
772 | if (!ldp_addrisset(af, &(ldp_af_conf_get(ldpd_conf, af))->trans_addr)) |
773 | return; | |
774 | ||
8429abe0 RW |
775 | main_imsg_send_net_socket(af, LDP_SOCKET_DISC); |
776 | main_imsg_send_net_socket(af, LDP_SOCKET_EDISC); | |
777 | main_imsg_send_net_socket(af, LDP_SOCKET_SESSION); | |
778 | imsg_compose_event(iev_ldpe, IMSG_SETUP_SOCKETS, af, 0, -1, NULL, 0); | |
779 | } | |
780 | ||
781 | static void | |
782 | main_imsg_send_net_socket(int af, enum socket_type type) | |
783 | { | |
784 | int fd; | |
785 | ||
786 | fd = ldp_create_socket(af, type); | |
787 | if (fd == -1) { | |
788 | log_warnx("%s: failed to create %s socket for address-family " | |
789 | "%s", __func__, socket_name(type), af_name(af)); | |
790 | return; | |
791 | } | |
792 | ||
793 | imsg_compose_event(iev_ldpe, IMSG_SOCKET_NET, af, 0, fd, &type, | |
794 | sizeof(type)); | |
795 | } | |
796 | ||
797 | struct ldpd_af_conf * | |
798 | ldp_af_conf_get(struct ldpd_conf *xconf, int af) | |
799 | { | |
800 | switch (af) { | |
801 | case AF_INET: | |
802 | return (&xconf->ipv4); | |
803 | case AF_INET6: | |
804 | return (&xconf->ipv6); | |
805 | default: | |
806 | fatalx("ldp_af_conf_get: unknown af"); | |
807 | } | |
808 | } | |
809 | ||
810 | struct ldpd_af_global * | |
811 | ldp_af_global_get(struct ldpd_global *xglobal, int af) | |
812 | { | |
813 | switch (af) { | |
814 | case AF_INET: | |
815 | return (&xglobal->ipv4); | |
816 | case AF_INET6: | |
817 | return (&xglobal->ipv6); | |
818 | default: | |
819 | fatalx("ldp_af_global_get: unknown af"); | |
820 | } | |
821 | } | |
822 | ||
823 | int | |
824 | ldp_is_dual_stack(struct ldpd_conf *xconf) | |
825 | { | |
826 | return ((xconf->ipv4.flags & F_LDPD_AF_ENABLED) && | |
827 | (xconf->ipv6.flags & F_LDPD_AF_ENABLED)); | |
828 | } | |
829 | ||
eac6e3f0 RW |
830 | in_addr_t |
831 | ldp_rtr_id_get(struct ldpd_conf *xconf) | |
832 | { | |
833 | if (xconf->rtr_id.s_addr != INADDR_ANY) | |
834 | return (xconf->rtr_id.s_addr); | |
835 | else | |
836 | return (global.rtr_id.s_addr); | |
837 | } | |
838 | ||
8429abe0 RW |
839 | static int |
840 | main_imsg_send_config(struct ldpd_conf *xconf) | |
841 | { | |
842 | struct iface *iface; | |
843 | struct tnbr *tnbr; | |
844 | struct nbr_params *nbrp; | |
845 | struct l2vpn *l2vpn; | |
846 | struct l2vpn_if *lif; | |
847 | struct l2vpn_pw *pw; | |
848 | ||
849 | if (main_imsg_compose_both(IMSG_RECONF_CONF, xconf, | |
850 | sizeof(*xconf)) == -1) | |
851 | return (-1); | |
852 | ||
7d3d7491 | 853 | RB_FOREACH(iface, iface_head, &xconf->iface_tree) { |
8429abe0 RW |
854 | if (main_imsg_compose_both(IMSG_RECONF_IFACE, iface, |
855 | sizeof(*iface)) == -1) | |
856 | return (-1); | |
857 | } | |
858 | ||
7989cdba | 859 | RB_FOREACH(tnbr, tnbr_head, &xconf->tnbr_tree) { |
8429abe0 RW |
860 | if (main_imsg_compose_both(IMSG_RECONF_TNBR, tnbr, |
861 | sizeof(*tnbr)) == -1) | |
862 | return (-1); | |
863 | } | |
864 | ||
76c4abd1 | 865 | RB_FOREACH(nbrp, nbrp_head, &xconf->nbrp_tree) { |
8429abe0 RW |
866 | if (main_imsg_compose_both(IMSG_RECONF_NBRP, nbrp, |
867 | sizeof(*nbrp)) == -1) | |
868 | return (-1); | |
869 | } | |
870 | ||
90d7e7bd | 871 | RB_FOREACH(l2vpn, l2vpn_head, &xconf->l2vpn_tree) { |
8429abe0 RW |
872 | if (main_imsg_compose_both(IMSG_RECONF_L2VPN, l2vpn, |
873 | sizeof(*l2vpn)) == -1) | |
874 | return (-1); | |
875 | ||
029c1958 | 876 | RB_FOREACH(lif, l2vpn_if_head, &l2vpn->if_tree) { |
8429abe0 RW |
877 | if (main_imsg_compose_both(IMSG_RECONF_L2VPN_IF, lif, |
878 | sizeof(*lif)) == -1) | |
879 | return (-1); | |
880 | } | |
881 | LIST_FOREACH(pw, &l2vpn->pw_list, entry) { | |
882 | if (main_imsg_compose_both(IMSG_RECONF_L2VPN_PW, pw, | |
883 | sizeof(*pw)) == -1) | |
884 | return (-1); | |
885 | } | |
eac6e3f0 RW |
886 | LIST_FOREACH(pw, &l2vpn->pw_inactive_list, entry) { |
887 | if (main_imsg_compose_both(IMSG_RECONF_L2VPN_IPW, pw, | |
888 | sizeof(*pw)) == -1) | |
889 | return (-1); | |
890 | } | |
8429abe0 RW |
891 | } |
892 | ||
893 | if (main_imsg_compose_both(IMSG_RECONF_END, NULL, 0) == -1) | |
894 | return (-1); | |
895 | ||
896 | return (0); | |
897 | } | |
898 | ||
eac6e3f0 | 899 | int |
b67c140b | 900 | ldp_reload_ref(struct ldpd_conf *xconf, void **ref) |
8429abe0 | 901 | { |
b67c140b | 902 | ldp_config_normalize(xconf, ref); |
8429abe0 RW |
903 | |
904 | if (main_imsg_send_config(xconf) == -1) | |
905 | return (-1); | |
906 | ||
b67c140b | 907 | merge_config_ref(ldpd_conf, xconf, ref); |
8429abe0 RW |
908 | |
909 | return (0); | |
910 | } | |
911 | ||
b67c140b RW |
912 | int |
913 | ldp_reload(struct ldpd_conf *xconf) | |
914 | { | |
915 | return ldp_reload_ref(xconf, NULL); | |
916 | } | |
917 | ||
eac6e3f0 | 918 | static void |
b67c140b | 919 | ldp_config_normalize(struct ldpd_conf *xconf, void **ref) |
eac6e3f0 RW |
920 | { |
921 | struct l2vpn *l2vpn; | |
922 | struct l2vpn_pw *pw; | |
923 | ||
924 | if (!(xconf->flags & F_LDPD_ENABLED)) | |
b67c140b | 925 | ldp_config_reset_main(xconf, ref); |
eac6e3f0 RW |
926 | else { |
927 | if (!(xconf->ipv4.flags & F_LDPD_AF_ENABLED)) | |
b67c140b | 928 | ldp_config_reset_af(xconf, AF_INET, ref); |
eac6e3f0 | 929 | if (!(xconf->ipv6.flags & F_LDPD_AF_ENABLED)) |
b67c140b | 930 | ldp_config_reset_af(xconf, AF_INET6, ref); |
eac6e3f0 RW |
931 | } |
932 | ||
90d7e7bd | 933 | RB_FOREACH(l2vpn, l2vpn_head, &xconf->l2vpn_tree) { |
eac6e3f0 RW |
934 | LIST_FOREACH(pw, &l2vpn->pw_list, entry) { |
935 | if (pw->flags & F_PW_STATIC_NBR_ADDR) | |
936 | continue; | |
937 | ||
938 | pw->af = AF_INET; | |
939 | pw->addr.v4 = pw->lsr_id; | |
940 | } | |
941 | LIST_FOREACH(pw, &l2vpn->pw_inactive_list, entry) { | |
942 | if (pw->flags & F_PW_STATIC_NBR_ADDR) | |
943 | continue; | |
944 | ||
945 | pw->af = AF_INET; | |
946 | pw->addr.v4 = pw->lsr_id; | |
947 | } | |
948 | } | |
949 | } | |
950 | ||
951 | static void | |
b67c140b | 952 | ldp_config_reset_main(struct ldpd_conf *conf, void **ref) |
eac6e3f0 RW |
953 | { |
954 | struct iface *iface; | |
955 | struct nbr_params *nbrp; | |
956 | ||
7d3d7491 | 957 | while ((iface = RB_ROOT(&conf->iface_tree)) != NULL) { |
b67c140b RW |
958 | if (ref && *ref == iface) |
959 | *ref = NULL; | |
7d3d7491 | 960 | RB_REMOVE(iface_head, &conf->iface_tree, iface); |
eac6e3f0 RW |
961 | free(iface); |
962 | } | |
963 | ||
76c4abd1 | 964 | while ((nbrp = RB_ROOT(&conf->nbrp_tree)) != NULL) { |
b67c140b RW |
965 | if (ref && *ref == nbrp) |
966 | *ref = NULL; | |
76c4abd1 | 967 | RB_REMOVE(nbrp_head, &conf->nbrp_tree, nbrp); |
eac6e3f0 RW |
968 | free(nbrp); |
969 | } | |
970 | ||
971 | conf->rtr_id.s_addr = INADDR_ANY; | |
b67c140b RW |
972 | ldp_config_reset_af(conf, AF_INET, ref); |
973 | ldp_config_reset_af(conf, AF_INET6, ref); | |
eac6e3f0 RW |
974 | conf->lhello_holdtime = LINK_DFLT_HOLDTIME; |
975 | conf->lhello_interval = DEFAULT_HELLO_INTERVAL; | |
976 | conf->thello_holdtime = TARGETED_DFLT_HOLDTIME; | |
977 | conf->thello_interval = DEFAULT_HELLO_INTERVAL; | |
978 | conf->trans_pref = DUAL_STACK_LDPOV6; | |
979 | conf->flags = 0; | |
980 | } | |
981 | ||
982 | static void | |
b67c140b | 983 | ldp_config_reset_af(struct ldpd_conf *conf, int af, void **ref) |
eac6e3f0 RW |
984 | { |
985 | struct ldpd_af_conf *af_conf; | |
986 | struct iface *iface; | |
987 | struct iface_af *ia; | |
988 | struct tnbr *tnbr, *ttmp; | |
989 | ||
7d3d7491 | 990 | RB_FOREACH(iface, iface_head, &conf->iface_tree) { |
eac6e3f0 RW |
991 | ia = iface_af_get(iface, af); |
992 | ia->enabled = 0; | |
993 | } | |
994 | ||
7989cdba | 995 | RB_FOREACH_SAFE(tnbr, tnbr_head, &conf->tnbr_tree, ttmp) { |
eac6e3f0 RW |
996 | if (tnbr->af != af) |
997 | continue; | |
998 | ||
b67c140b RW |
999 | if (ref && *ref == tnbr) |
1000 | *ref = NULL; | |
7989cdba | 1001 | RB_REMOVE(tnbr_head, &conf->tnbr_tree, tnbr); |
eac6e3f0 RW |
1002 | free(tnbr); |
1003 | } | |
1004 | ||
1005 | af_conf = ldp_af_conf_get(conf, af); | |
1006 | af_conf->keepalive = 180; | |
1007 | af_conf->lhello_holdtime = 0; | |
1008 | af_conf->lhello_interval = 0; | |
1009 | af_conf->thello_holdtime = 0; | |
1010 | af_conf->thello_interval = 0; | |
1011 | memset(&af_conf->trans_addr, 0, sizeof(af_conf->trans_addr)); | |
1012 | af_conf->flags = 0; | |
1013 | } | |
1014 | ||
1015 | struct ldpd_conf * | |
b67c140b | 1016 | ldp_dup_config_ref(struct ldpd_conf *conf, void **ref) |
eac6e3f0 RW |
1017 | { |
1018 | struct ldpd_conf *xconf; | |
1019 | struct iface *iface, *xi; | |
1020 | struct tnbr *tnbr, *xt; | |
1021 | struct nbr_params *nbrp, *xn; | |
1022 | struct l2vpn *l2vpn, *xl; | |
1023 | struct l2vpn_if *lif, *xf; | |
1024 | struct l2vpn_pw *pw, *xp; | |
1025 | ||
b67c140b RW |
1026 | #define COPY(a, b) do { \ |
1027 | a = calloc(1, sizeof(*a)); \ | |
1028 | if (a == NULL) \ | |
1029 | fatal(__func__); \ | |
1030 | *a = *b; \ | |
1031 | if (ref && *ref == b) *ref = a; \ | |
1032 | } while (0) | |
1033 | ||
1034 | COPY(xconf, conf); | |
7d3d7491 | 1035 | RB_INIT(&xconf->iface_tree); |
7989cdba | 1036 | RB_INIT(&xconf->tnbr_tree); |
76c4abd1 | 1037 | RB_INIT(&xconf->nbrp_tree); |
90d7e7bd | 1038 | RB_INIT(&xconf->l2vpn_tree); |
eac6e3f0 | 1039 | |
7d3d7491 | 1040 | RB_FOREACH(iface, iface_head, &conf->iface_tree) { |
b67c140b | 1041 | COPY(xi, iface); |
eac6e3f0 RW |
1042 | xi->ipv4.iface = xi; |
1043 | xi->ipv6.iface = xi; | |
7d3d7491 | 1044 | RB_INSERT(iface_head, &xconf->iface_tree, xi); |
eac6e3f0 | 1045 | } |
7989cdba | 1046 | RB_FOREACH(tnbr, tnbr_head, &conf->tnbr_tree) { |
b67c140b | 1047 | COPY(xt, tnbr); |
7989cdba | 1048 | RB_INSERT(tnbr_head, &xconf->tnbr_tree, xt); |
eac6e3f0 | 1049 | } |
76c4abd1 | 1050 | RB_FOREACH(nbrp, nbrp_head, &conf->nbrp_tree) { |
b67c140b | 1051 | COPY(xn, nbrp); |
76c4abd1 | 1052 | RB_INSERT(nbrp_head, &xconf->nbrp_tree, xn); |
eac6e3f0 | 1053 | } |
90d7e7bd | 1054 | RB_FOREACH(l2vpn, l2vpn_head, &conf->l2vpn_tree) { |
b67c140b | 1055 | COPY(xl, l2vpn); |
029c1958 | 1056 | RB_INIT(&xl->if_tree); |
eac6e3f0 RW |
1057 | LIST_INIT(&xl->pw_list); |
1058 | LIST_INIT(&xl->pw_inactive_list); | |
90d7e7bd | 1059 | RB_INSERT(l2vpn_head, &xconf->l2vpn_tree, xl); |
eac6e3f0 | 1060 | |
029c1958 | 1061 | RB_FOREACH(lif, l2vpn_if_head, &l2vpn->if_tree) { |
b67c140b | 1062 | COPY(xf, lif); |
eac6e3f0 | 1063 | xf->l2vpn = xl; |
029c1958 | 1064 | RB_INSERT(l2vpn_if_head, &xl->if_tree, xf); |
eac6e3f0 RW |
1065 | } |
1066 | LIST_FOREACH(pw, &l2vpn->pw_list, entry) { | |
b67c140b | 1067 | COPY(xp, pw); |
eac6e3f0 RW |
1068 | xp->l2vpn = xl; |
1069 | LIST_INSERT_HEAD(&xl->pw_list, xp, entry); | |
1070 | } | |
1071 | LIST_FOREACH(pw, &l2vpn->pw_inactive_list, entry) { | |
b67c140b | 1072 | COPY(xp, pw); |
eac6e3f0 RW |
1073 | xp->l2vpn = xl; |
1074 | LIST_INSERT_HEAD(&xl->pw_inactive_list, xp, entry); | |
1075 | } | |
1076 | } | |
b67c140b | 1077 | #undef COPY |
eac6e3f0 RW |
1078 | |
1079 | return (xconf); | |
1080 | } | |
1081 | ||
b67c140b RW |
1082 | struct ldpd_conf * |
1083 | ldp_dup_config(struct ldpd_conf *conf) | |
1084 | { | |
1085 | return ldp_dup_config_ref(conf, NULL); | |
1086 | } | |
1087 | ||
eac6e3f0 RW |
1088 | void |
1089 | ldp_clear_config(struct ldpd_conf *xconf) | |
1090 | { | |
1091 | struct iface *iface; | |
1092 | struct tnbr *tnbr; | |
1093 | struct nbr_params *nbrp; | |
1094 | struct l2vpn *l2vpn; | |
1095 | ||
7d3d7491 RW |
1096 | while ((iface = RB_ROOT(&xconf->iface_tree)) != NULL) { |
1097 | RB_REMOVE(iface_head, &xconf->iface_tree, iface); | |
eac6e3f0 RW |
1098 | free(iface); |
1099 | } | |
7989cdba RW |
1100 | while ((tnbr = RB_ROOT(&xconf->tnbr_tree)) != NULL) { |
1101 | RB_REMOVE(tnbr_head, &xconf->tnbr_tree, tnbr); | |
eac6e3f0 RW |
1102 | free(tnbr); |
1103 | } | |
76c4abd1 RW |
1104 | while ((nbrp = RB_ROOT(&xconf->nbrp_tree)) != NULL) { |
1105 | RB_REMOVE(nbrp_head, &xconf->nbrp_tree, nbrp); | |
eac6e3f0 RW |
1106 | free(nbrp); |
1107 | } | |
90d7e7bd RW |
1108 | while ((l2vpn = RB_ROOT(&xconf->l2vpn_tree)) != NULL) { |
1109 | RB_REMOVE(l2vpn_head, &xconf->l2vpn_tree, l2vpn); | |
eac6e3f0 RW |
1110 | l2vpn_del(l2vpn); |
1111 | } | |
1112 | ||
1113 | free(xconf); | |
1114 | } | |
1115 | ||
b67c140b RW |
1116 | static void |
1117 | merge_config_ref(struct ldpd_conf *conf, struct ldpd_conf *xconf, void **ref) | |
8429abe0 RW |
1118 | { |
1119 | merge_global(conf, xconf); | |
1120 | merge_af(AF_INET, &conf->ipv4, &xconf->ipv4); | |
1121 | merge_af(AF_INET6, &conf->ipv6, &xconf->ipv6); | |
b67c140b RW |
1122 | merge_ifaces(conf, xconf, ref); |
1123 | merge_tnbrs(conf, xconf, ref); | |
1124 | merge_nbrps(conf, xconf, ref); | |
1125 | merge_l2vpns(conf, xconf, ref); | |
1126 | if (ref && *ref == xconf) | |
1127 | *ref = conf; | |
8429abe0 RW |
1128 | free(xconf); |
1129 | } | |
1130 | ||
b67c140b RW |
1131 | void |
1132 | merge_config(struct ldpd_conf *conf, struct ldpd_conf *xconf) | |
1133 | { | |
1134 | merge_config_ref(conf, xconf, NULL); | |
1135 | } | |
1136 | ||
8429abe0 RW |
1137 | static void |
1138 | merge_global(struct ldpd_conf *conf, struct ldpd_conf *xconf) | |
1139 | { | |
1140 | /* change of router-id requires resetting all neighborships */ | |
1141 | if (conf->rtr_id.s_addr != xconf->rtr_id.s_addr) { | |
1142 | if (ldpd_process == PROC_LDP_ENGINE) { | |
1143 | ldpe_reset_nbrs(AF_INET); | |
1144 | ldpe_reset_nbrs(AF_INET6); | |
1145 | if (conf->rtr_id.s_addr == INADDR_ANY || | |
1146 | xconf->rtr_id.s_addr == INADDR_ANY) { | |
1147 | if_update_all(AF_UNSPEC); | |
1148 | tnbr_update_all(AF_UNSPEC); | |
1149 | } | |
1150 | } | |
1151 | conf->rtr_id = xconf->rtr_id; | |
1152 | } | |
1153 | ||
eac6e3f0 RW |
1154 | conf->lhello_holdtime = xconf->lhello_holdtime; |
1155 | conf->lhello_interval = xconf->lhello_interval; | |
1156 | conf->thello_holdtime = xconf->thello_holdtime; | |
1157 | conf->thello_interval = xconf->thello_interval; | |
1158 | ||
8429abe0 RW |
1159 | if (conf->trans_pref != xconf->trans_pref) { |
1160 | if (ldpd_process == PROC_LDP_ENGINE) | |
1161 | ldpe_reset_ds_nbrs(); | |
1162 | conf->trans_pref = xconf->trans_pref; | |
1163 | } | |
1164 | ||
1165 | if ((conf->flags & F_LDPD_DS_CISCO_INTEROP) != | |
1166 | (xconf->flags & F_LDPD_DS_CISCO_INTEROP)) { | |
1167 | if (ldpd_process == PROC_LDP_ENGINE) | |
1168 | ldpe_reset_ds_nbrs(); | |
1169 | } | |
1170 | ||
1171 | conf->flags = xconf->flags; | |
1172 | } | |
1173 | ||
1174 | static void | |
1175 | merge_af(int af, struct ldpd_af_conf *af_conf, struct ldpd_af_conf *xa) | |
1176 | { | |
1177 | int egress_label_changed = 0; | |
1178 | int update_sockets = 0; | |
1179 | ||
1180 | if (af_conf->keepalive != xa->keepalive) { | |
1181 | af_conf->keepalive = xa->keepalive; | |
1182 | if (ldpd_process == PROC_LDP_ENGINE) | |
1183 | ldpe_stop_init_backoff(af); | |
1184 | } | |
eac6e3f0 RW |
1185 | |
1186 | af_conf->lhello_holdtime = xa->lhello_holdtime; | |
1187 | af_conf->lhello_interval = xa->lhello_interval; | |
8429abe0 RW |
1188 | af_conf->thello_holdtime = xa->thello_holdtime; |
1189 | af_conf->thello_interval = xa->thello_interval; | |
1190 | ||
1191 | /* update flags */ | |
1192 | if (ldpd_process == PROC_LDP_ENGINE && | |
1193 | (af_conf->flags & F_LDPD_AF_THELLO_ACCEPT) && | |
1194 | !(xa->flags & F_LDPD_AF_THELLO_ACCEPT)) | |
1195 | ldpe_remove_dynamic_tnbrs(af); | |
1196 | ||
1197 | if ((af_conf->flags & F_LDPD_AF_NO_GTSM) != | |
1198 | (xa->flags & F_LDPD_AF_NO_GTSM)) { | |
1199 | if (af == AF_INET6) | |
1200 | /* need to set/unset IPV6_MINHOPCOUNT */ | |
1201 | update_sockets = 1; | |
1202 | else if (ldpd_process == PROC_LDP_ENGINE) | |
1203 | /* for LDPv4 just resetting the neighbors is enough */ | |
1204 | ldpe_reset_nbrs(af); | |
1205 | } | |
1206 | ||
1207 | if ((af_conf->flags & F_LDPD_AF_EXPNULL) != | |
1208 | (xa->flags & F_LDPD_AF_EXPNULL)) | |
1209 | egress_label_changed = 1; | |
1210 | ||
1211 | af_conf->flags = xa->flags; | |
1212 | ||
1213 | if (egress_label_changed) { | |
1214 | switch (ldpd_process) { | |
1215 | case PROC_LDE_ENGINE: | |
1216 | lde_change_egress_label(af, af_conf->flags & | |
1217 | F_LDPD_AF_EXPNULL); | |
1218 | break; | |
8429abe0 RW |
1219 | default: |
1220 | break; | |
1221 | } | |
1222 | } | |
1223 | ||
1224 | if (ldp_addrcmp(af, &af_conf->trans_addr, &xa->trans_addr)) { | |
1225 | af_conf->trans_addr = xa->trans_addr; | |
1226 | update_sockets = 1; | |
1227 | } | |
1228 | ||
eac6e3f0 | 1229 | if (ldpd_process == PROC_MAIN && iev_ldpe && update_sockets) |
8429abe0 RW |
1230 | imsg_compose_event(iev_ldpe, IMSG_CLOSE_SOCKETS, af, 0, -1, |
1231 | NULL, 0); | |
1232 | } | |
1233 | ||
1234 | static void | |
b67c140b | 1235 | merge_ifaces(struct ldpd_conf *conf, struct ldpd_conf *xconf, void **ref) |
8429abe0 RW |
1236 | { |
1237 | struct iface *iface, *itmp, *xi; | |
1238 | ||
7d3d7491 | 1239 | RB_FOREACH_SAFE(iface, iface_head, &conf->iface_tree, itmp) { |
8429abe0 | 1240 | /* find deleted interfaces */ |
eac6e3f0 | 1241 | if ((xi = if_lookup_name(xconf, iface->name)) == NULL) { |
7d3d7491 | 1242 | RB_REMOVE(iface_head, &conf->iface_tree, iface); |
4af8997d RW |
1243 | |
1244 | switch (ldpd_process) { | |
1245 | case PROC_LDE_ENGINE: | |
1246 | break; | |
1247 | case PROC_LDP_ENGINE: | |
8429abe0 | 1248 | if_exit(iface); |
4af8997d RW |
1249 | break; |
1250 | case PROC_MAIN: | |
1251 | QOBJ_UNREG (iface); | |
1252 | break; | |
1253 | } | |
8429abe0 RW |
1254 | free(iface); |
1255 | } | |
1256 | } | |
7d3d7491 | 1257 | RB_FOREACH_SAFE(xi, iface_head, &xconf->iface_tree, itmp) { |
8429abe0 | 1258 | /* find new interfaces */ |
eac6e3f0 | 1259 | if ((iface = if_lookup_name(conf, xi->name)) == NULL) { |
7d3d7491 RW |
1260 | RB_REMOVE(iface_head, &xconf->iface_tree, xi); |
1261 | RB_INSERT(iface_head, &conf->iface_tree, xi); | |
8429abe0 | 1262 | |
4af8997d RW |
1263 | if (ldpd_process == PROC_MAIN) { |
1264 | QOBJ_REG (xi, iface); | |
1265 | /* resend addresses to activate new interfaces */ | |
8429abe0 | 1266 | kif_redistribute(xi->name); |
4af8997d | 1267 | } |
8429abe0 RW |
1268 | continue; |
1269 | } | |
1270 | ||
1271 | /* update existing interfaces */ | |
1272 | merge_iface_af(&iface->ipv4, &xi->ipv4); | |
1273 | merge_iface_af(&iface->ipv6, &xi->ipv6); | |
7d3d7491 | 1274 | RB_REMOVE(iface_head, &xconf->iface_tree, xi); |
b67c140b RW |
1275 | if (ref && *ref == xi) |
1276 | *ref = iface; | |
8429abe0 RW |
1277 | free(xi); |
1278 | } | |
1279 | } | |
1280 | ||
1281 | static void | |
1282 | merge_iface_af(struct iface_af *ia, struct iface_af *xi) | |
1283 | { | |
1284 | if (ia->enabled != xi->enabled) { | |
1285 | ia->enabled = xi->enabled; | |
1286 | if (ldpd_process == PROC_LDP_ENGINE) | |
1287 | if_update(ia->iface, ia->af); | |
1288 | } | |
1289 | ia->hello_holdtime = xi->hello_holdtime; | |
1290 | ia->hello_interval = xi->hello_interval; | |
1291 | } | |
1292 | ||
1293 | static void | |
b67c140b | 1294 | merge_tnbrs(struct ldpd_conf *conf, struct ldpd_conf *xconf, void **ref) |
8429abe0 RW |
1295 | { |
1296 | struct tnbr *tnbr, *ttmp, *xt; | |
1297 | ||
7989cdba | 1298 | RB_FOREACH_SAFE(tnbr, tnbr_head, &conf->tnbr_tree, ttmp) { |
8429abe0 RW |
1299 | if (!(tnbr->flags & F_TNBR_CONFIGURED)) |
1300 | continue; | |
1301 | ||
1302 | /* find deleted tnbrs */ | |
1303 | if ((xt = tnbr_find(xconf, tnbr->af, &tnbr->addr)) == NULL) { | |
4af8997d RW |
1304 | switch (ldpd_process) { |
1305 | case PROC_LDE_ENGINE: | |
7989cdba | 1306 | RB_REMOVE(tnbr_head, &conf->tnbr_tree, tnbr); |
4af8997d RW |
1307 | free(tnbr); |
1308 | break; | |
1309 | case PROC_LDP_ENGINE: | |
8429abe0 | 1310 | tnbr->flags &= ~F_TNBR_CONFIGURED; |
7989cdba | 1311 | tnbr_check(conf, tnbr); |
4af8997d RW |
1312 | break; |
1313 | case PROC_MAIN: | |
7989cdba | 1314 | RB_REMOVE(tnbr_head, &conf->tnbr_tree, tnbr); |
4af8997d | 1315 | QOBJ_UNREG (tnbr); |
8429abe0 | 1316 | free(tnbr); |
4af8997d | 1317 | break; |
8429abe0 RW |
1318 | } |
1319 | } | |
1320 | } | |
7989cdba | 1321 | RB_FOREACH_SAFE(xt, tnbr_head, &xconf->tnbr_tree, ttmp) { |
8429abe0 RW |
1322 | /* find new tnbrs */ |
1323 | if ((tnbr = tnbr_find(conf, xt->af, &xt->addr)) == NULL) { | |
7989cdba RW |
1324 | RB_REMOVE(tnbr_head, &xconf->tnbr_tree, xt); |
1325 | RB_INSERT(tnbr_head, &conf->tnbr_tree, xt); | |
8429abe0 | 1326 | |
4af8997d RW |
1327 | switch (ldpd_process) { |
1328 | case PROC_LDE_ENGINE: | |
1329 | break; | |
1330 | case PROC_LDP_ENGINE: | |
8429abe0 | 1331 | tnbr_update(xt); |
4af8997d RW |
1332 | break; |
1333 | case PROC_MAIN: | |
1334 | QOBJ_REG (xt, tnbr); | |
1335 | break; | |
1336 | } | |
8429abe0 RW |
1337 | continue; |
1338 | } | |
1339 | ||
1340 | /* update existing tnbrs */ | |
1341 | if (!(tnbr->flags & F_TNBR_CONFIGURED)) | |
1342 | tnbr->flags |= F_TNBR_CONFIGURED; | |
7989cdba | 1343 | RB_REMOVE(tnbr_head, &xconf->tnbr_tree, xt); |
b67c140b RW |
1344 | if (ref && *ref == xt) |
1345 | *ref = tnbr; | |
8429abe0 RW |
1346 | free(xt); |
1347 | } | |
1348 | } | |
1349 | ||
1350 | static void | |
b67c140b | 1351 | merge_nbrps(struct ldpd_conf *conf, struct ldpd_conf *xconf, void **ref) |
8429abe0 RW |
1352 | { |
1353 | struct nbr_params *nbrp, *ntmp, *xn; | |
1354 | struct nbr *nbr; | |
1355 | int nbrp_changed; | |
1356 | ||
76c4abd1 | 1357 | RB_FOREACH_SAFE(nbrp, nbrp_head, &conf->nbrp_tree, ntmp) { |
8429abe0 RW |
1358 | /* find deleted nbrps */ |
1359 | if ((xn = nbr_params_find(xconf, nbrp->lsr_id)) == NULL) { | |
4af8997d RW |
1360 | switch (ldpd_process) { |
1361 | case PROC_LDE_ENGINE: | |
1362 | break; | |
1363 | case PROC_LDP_ENGINE: | |
8429abe0 RW |
1364 | nbr = nbr_find_ldpid(nbrp->lsr_id.s_addr); |
1365 | if (nbr) { | |
1366 | session_shutdown(nbr, S_SHUTDOWN, 0, 0); | |
eac6e3f0 | 1367 | #ifdef __OpenBSD__ |
8429abe0 | 1368 | pfkey_remove(nbr); |
eac6e3f0 RW |
1369 | #else |
1370 | sock_set_md5sig( | |
1371 | (ldp_af_global_get(&global, | |
1372 | nbr->af))->ldp_session_socket, | |
1373 | nbr->af, &nbr->raddr, NULL); | |
1374 | #endif | |
8429abe0 RW |
1375 | if (nbr_session_active_role(nbr)) |
1376 | nbr_establish_connection(nbr); | |
1377 | } | |
4af8997d RW |
1378 | break; |
1379 | case PROC_MAIN: | |
1380 | QOBJ_UNREG (nbrp); | |
1381 | break; | |
8429abe0 | 1382 | } |
76c4abd1 | 1383 | RB_REMOVE(nbrp_head, &conf->nbrp_tree, nbrp); |
8429abe0 RW |
1384 | free(nbrp); |
1385 | } | |
1386 | } | |
76c4abd1 | 1387 | RB_FOREACH_SAFE(xn, nbrp_head, &xconf->nbrp_tree, ntmp) { |
8429abe0 RW |
1388 | /* find new nbrps */ |
1389 | if ((nbrp = nbr_params_find(conf, xn->lsr_id)) == NULL) { | |
76c4abd1 RW |
1390 | RB_REMOVE(nbrp_head, &xconf->nbrp_tree, xn); |
1391 | RB_INSERT(nbrp_head, &conf->nbrp_tree, xn); | |
8429abe0 | 1392 | |
4af8997d RW |
1393 | switch (ldpd_process) { |
1394 | case PROC_LDE_ENGINE: | |
1395 | break; | |
1396 | case PROC_LDP_ENGINE: | |
8429abe0 RW |
1397 | nbr = nbr_find_ldpid(xn->lsr_id.s_addr); |
1398 | if (nbr) { | |
1399 | session_shutdown(nbr, S_SHUTDOWN, 0, 0); | |
eac6e3f0 | 1400 | #ifdef __OpenBSD__ |
8429abe0 RW |
1401 | if (pfkey_establish(nbr, xn) == -1) |
1402 | fatalx("pfkey setup failed"); | |
eac6e3f0 RW |
1403 | #else |
1404 | sock_set_md5sig( | |
1405 | (ldp_af_global_get(&global, | |
1406 | nbr->af))->ldp_session_socket, | |
1407 | nbr->af, &nbr->raddr, | |
1408 | xn->auth.md5key); | |
1409 | #endif | |
8429abe0 RW |
1410 | if (nbr_session_active_role(nbr)) |
1411 | nbr_establish_connection(nbr); | |
1412 | } | |
4af8997d RW |
1413 | break; |
1414 | case PROC_MAIN: | |
1415 | QOBJ_REG (xn, nbr_params); | |
1416 | break; | |
8429abe0 RW |
1417 | } |
1418 | continue; | |
1419 | } | |
1420 | ||
1421 | /* update existing nbrps */ | |
1422 | if (nbrp->flags != xn->flags || | |
1423 | nbrp->keepalive != xn->keepalive || | |
1424 | nbrp->gtsm_enabled != xn->gtsm_enabled || | |
1425 | nbrp->gtsm_hops != xn->gtsm_hops || | |
1426 | nbrp->auth.method != xn->auth.method || | |
1427 | strcmp(nbrp->auth.md5key, xn->auth.md5key) != 0) | |
1428 | nbrp_changed = 1; | |
1429 | else | |
1430 | nbrp_changed = 0; | |
1431 | ||
1432 | nbrp->keepalive = xn->keepalive; | |
1433 | nbrp->gtsm_enabled = xn->gtsm_enabled; | |
1434 | nbrp->gtsm_hops = xn->gtsm_hops; | |
1435 | nbrp->auth.method = xn->auth.method; | |
1436 | strlcpy(nbrp->auth.md5key, xn->auth.md5key, | |
1437 | sizeof(nbrp->auth.md5key)); | |
1438 | nbrp->auth.md5key_len = xn->auth.md5key_len; | |
1439 | nbrp->flags = xn->flags; | |
1440 | ||
1441 | if (ldpd_process == PROC_LDP_ENGINE) { | |
1442 | nbr = nbr_find_ldpid(nbrp->lsr_id.s_addr); | |
1443 | if (nbr && nbrp_changed) { | |
1444 | session_shutdown(nbr, S_SHUTDOWN, 0, 0); | |
eac6e3f0 | 1445 | #ifdef __OpenBSD__ |
8429abe0 RW |
1446 | pfkey_remove(nbr); |
1447 | if (pfkey_establish(nbr, nbrp) == -1) | |
1448 | fatalx("pfkey setup failed"); | |
eac6e3f0 RW |
1449 | #else |
1450 | sock_set_md5sig((ldp_af_global_get(&global, | |
1451 | nbr->af))->ldp_session_socket, nbr->af, | |
1452 | &nbr->raddr, nbrp->auth.md5key); | |
1453 | #endif | |
8429abe0 RW |
1454 | if (nbr_session_active_role(nbr)) |
1455 | nbr_establish_connection(nbr); | |
1456 | } | |
1457 | } | |
76c4abd1 | 1458 | RB_REMOVE(nbrp_head, &xconf->nbrp_tree, xn); |
b67c140b RW |
1459 | if (ref && *ref == xn) |
1460 | *ref = nbrp; | |
8429abe0 RW |
1461 | free(xn); |
1462 | } | |
1463 | } | |
1464 | ||
1465 | static void | |
b67c140b | 1466 | merge_l2vpns(struct ldpd_conf *conf, struct ldpd_conf *xconf, void **ref) |
8429abe0 RW |
1467 | { |
1468 | struct l2vpn *l2vpn, *ltmp, *xl; | |
4af8997d RW |
1469 | struct l2vpn_if *lif; |
1470 | struct l2vpn_pw *pw; | |
8429abe0 | 1471 | |
90d7e7bd | 1472 | RB_FOREACH_SAFE(l2vpn, l2vpn_head, &conf->l2vpn_tree, ltmp) { |
8429abe0 RW |
1473 | /* find deleted l2vpns */ |
1474 | if ((xl = l2vpn_find(xconf, l2vpn->name)) == NULL) { | |
90d7e7bd | 1475 | RB_REMOVE(l2vpn_head, &conf->l2vpn_tree, l2vpn); |
8429abe0 RW |
1476 | |
1477 | switch (ldpd_process) { | |
1478 | case PROC_LDE_ENGINE: | |
1479 | l2vpn_exit(l2vpn); | |
1480 | break; | |
1481 | case PROC_LDP_ENGINE: | |
1482 | ldpe_l2vpn_exit(l2vpn); | |
1483 | break; | |
1484 | case PROC_MAIN: | |
029c1958 | 1485 | RB_FOREACH(lif, l2vpn_if_head, &l2vpn->if_tree) |
4af8997d RW |
1486 | QOBJ_UNREG (lif); |
1487 | LIST_FOREACH(pw, &l2vpn->pw_list, entry) | |
1488 | QOBJ_UNREG (pw); | |
1489 | LIST_FOREACH(pw, &l2vpn->pw_inactive_list, entry) | |
1490 | QOBJ_UNREG (pw); | |
1491 | QOBJ_UNREG (l2vpn); | |
8429abe0 RW |
1492 | break; |
1493 | } | |
1494 | l2vpn_del(l2vpn); | |
1495 | } | |
1496 | } | |
90d7e7bd | 1497 | RB_FOREACH_SAFE(xl, l2vpn_head, &xconf->l2vpn_tree, ltmp) { |
8429abe0 RW |
1498 | /* find new l2vpns */ |
1499 | if ((l2vpn = l2vpn_find(conf, xl->name)) == NULL) { | |
90d7e7bd RW |
1500 | RB_REMOVE(l2vpn_head, &xconf->l2vpn_tree, xl); |
1501 | RB_INSERT(l2vpn_head, &conf->l2vpn_tree, xl); | |
8429abe0 RW |
1502 | |
1503 | switch (ldpd_process) { | |
1504 | case PROC_LDE_ENGINE: | |
1505 | l2vpn_init(xl); | |
1506 | break; | |
1507 | case PROC_LDP_ENGINE: | |
1508 | ldpe_l2vpn_init(xl); | |
1509 | break; | |
1510 | case PROC_MAIN: | |
4af8997d | 1511 | QOBJ_REG (xl, l2vpn); |
8429abe0 RW |
1512 | break; |
1513 | } | |
1514 | continue; | |
1515 | } | |
1516 | ||
1517 | /* update existing l2vpns */ | |
b67c140b | 1518 | merge_l2vpn(conf, l2vpn, xl, ref); |
90d7e7bd | 1519 | RB_REMOVE(l2vpn_head, &xconf->l2vpn_tree, xl); |
b67c140b RW |
1520 | if (ref && *ref == xl) |
1521 | *ref = l2vpn; | |
8429abe0 RW |
1522 | free(xl); |
1523 | } | |
1524 | } | |
1525 | ||
1526 | static void | |
b67c140b | 1527 | merge_l2vpn(struct ldpd_conf *xconf, struct l2vpn *l2vpn, struct l2vpn *xl, void **ref) |
8429abe0 RW |
1528 | { |
1529 | struct l2vpn_if *lif, *ftmp, *xf; | |
1530 | struct l2vpn_pw *pw, *ptmp, *xp; | |
1531 | struct nbr *nbr; | |
1532 | int reset_nbr, reinstall_pwfec, reinstall_tnbr; | |
eac6e3f0 | 1533 | LIST_HEAD(, l2vpn_pw) pw_aux_list; |
8429abe0 RW |
1534 | int previous_pw_type, previous_mtu; |
1535 | ||
1536 | previous_pw_type = l2vpn->pw_type; | |
1537 | previous_mtu = l2vpn->mtu; | |
1538 | ||
1539 | /* merge intefaces */ | |
029c1958 | 1540 | RB_FOREACH_SAFE(lif, l2vpn_if_head, &l2vpn->if_tree, ftmp) { |
8429abe0 | 1541 | /* find deleted interfaces */ |
eac6e3f0 | 1542 | if ((xf = l2vpn_if_find_name(xl, lif->ifname)) == NULL) { |
4af8997d RW |
1543 | if (ldpd_process == PROC_MAIN) |
1544 | QOBJ_UNREG (lif); | |
029c1958 | 1545 | RB_REMOVE(l2vpn_if_head, &l2vpn->if_tree, lif); |
8429abe0 RW |
1546 | free(lif); |
1547 | } | |
1548 | } | |
029c1958 | 1549 | RB_FOREACH_SAFE(xf, l2vpn_if_head, &xl->if_tree, ftmp) { |
8429abe0 | 1550 | /* find new interfaces */ |
eac6e3f0 | 1551 | if ((lif = l2vpn_if_find_name(l2vpn, xf->ifname)) == NULL) { |
029c1958 RW |
1552 | RB_REMOVE(l2vpn_if_head, &xl->if_tree, xf); |
1553 | RB_INSERT(l2vpn_if_head, &l2vpn->if_tree, xf); | |
8429abe0 | 1554 | xf->l2vpn = l2vpn; |
4af8997d RW |
1555 | if (ldpd_process == PROC_MAIN) |
1556 | QOBJ_REG (xf, l2vpn_if); | |
8429abe0 RW |
1557 | continue; |
1558 | } | |
1559 | ||
029c1958 | 1560 | RB_REMOVE(l2vpn_if_head, &xl->if_tree, xf); |
b67c140b RW |
1561 | if (ref && *ref == xf) |
1562 | *ref = lif; | |
8429abe0 RW |
1563 | free(xf); |
1564 | } | |
1565 | ||
eac6e3f0 RW |
1566 | /* merge active pseudowires */ |
1567 | LIST_INIT(&pw_aux_list); | |
8429abe0 | 1568 | LIST_FOREACH_SAFE(pw, &l2vpn->pw_list, entry, ptmp) { |
eac6e3f0 RW |
1569 | /* find deleted active pseudowires */ |
1570 | if ((xp = l2vpn_pw_find_name(xl, pw->ifname)) == NULL) { | |
8429abe0 RW |
1571 | switch (ldpd_process) { |
1572 | case PROC_LDE_ENGINE: | |
1573 | l2vpn_pw_exit(pw); | |
1574 | break; | |
1575 | case PROC_LDP_ENGINE: | |
1576 | ldpe_l2vpn_pw_exit(pw); | |
1577 | break; | |
1578 | case PROC_MAIN: | |
4af8997d | 1579 | QOBJ_UNREG (pw); |
8429abe0 RW |
1580 | break; |
1581 | } | |
1582 | ||
1583 | LIST_REMOVE(pw, entry); | |
1584 | free(pw); | |
1585 | } | |
1586 | } | |
1587 | LIST_FOREACH_SAFE(xp, &xl->pw_list, entry, ptmp) { | |
eac6e3f0 RW |
1588 | /* find new active pseudowires */ |
1589 | if ((pw = l2vpn_pw_find_name(l2vpn, xp->ifname)) == NULL) { | |
8429abe0 RW |
1590 | LIST_REMOVE(xp, entry); |
1591 | LIST_INSERT_HEAD(&l2vpn->pw_list, xp, entry); | |
1592 | xp->l2vpn = l2vpn; | |
1593 | ||
1594 | switch (ldpd_process) { | |
1595 | case PROC_LDE_ENGINE: | |
1596 | l2vpn_pw_init(xp); | |
1597 | break; | |
1598 | case PROC_LDP_ENGINE: | |
1599 | ldpe_l2vpn_pw_init(xp); | |
1600 | break; | |
1601 | case PROC_MAIN: | |
4af8997d | 1602 | QOBJ_REG (xp, l2vpn_pw); |
8429abe0 RW |
1603 | break; |
1604 | } | |
1605 | continue; | |
1606 | } | |
1607 | ||
eac6e3f0 | 1608 | /* update existing active pseudowire */ |
8429abe0 RW |
1609 | if (pw->af != xp->af || |
1610 | ldp_addrcmp(pw->af, &pw->addr, &xp->addr)) | |
1611 | reinstall_tnbr = 1; | |
1612 | else | |
1613 | reinstall_tnbr = 0; | |
1614 | ||
1615 | /* changes that require a session restart */ | |
1616 | if ((pw->flags & (F_PW_STATUSTLV_CONF|F_PW_CWORD_CONF)) != | |
1617 | (xp->flags & (F_PW_STATUSTLV_CONF|F_PW_CWORD_CONF))) | |
1618 | reset_nbr = 1; | |
1619 | else | |
1620 | reset_nbr = 0; | |
1621 | ||
1622 | if (l2vpn->pw_type != xl->pw_type || l2vpn->mtu != xl->mtu || | |
1623 | pw->pwid != xp->pwid || reinstall_tnbr || reset_nbr || | |
1624 | pw->lsr_id.s_addr != xp->lsr_id.s_addr) | |
1625 | reinstall_pwfec = 1; | |
1626 | else | |
1627 | reinstall_pwfec = 0; | |
1628 | ||
eac6e3f0 RW |
1629 | /* check if the pseudowire should be disabled */ |
1630 | if (xp->lsr_id.s_addr == INADDR_ANY || xp->pwid == 0) { | |
1631 | reinstall_tnbr = 0; | |
1632 | reset_nbr = 0; | |
1633 | reinstall_pwfec = 0; | |
1634 | ||
1635 | switch (ldpd_process) { | |
1636 | case PROC_LDE_ENGINE: | |
1637 | l2vpn_pw_exit(pw); | |
1638 | break; | |
1639 | case PROC_LDP_ENGINE: | |
1640 | ldpe_l2vpn_pw_exit(pw); | |
1641 | break; | |
1642 | case PROC_MAIN: | |
1643 | break; | |
1644 | } | |
1645 | ||
1646 | /* remove from active list */ | |
1647 | LIST_REMOVE(pw, entry); | |
1648 | LIST_INSERT_HEAD(&pw_aux_list, pw, entry); | |
1649 | } | |
1650 | ||
8429abe0 RW |
1651 | if (ldpd_process == PROC_LDP_ENGINE) { |
1652 | if (reinstall_tnbr) | |
1653 | ldpe_l2vpn_pw_exit(pw); | |
1654 | if (reset_nbr) { | |
1655 | nbr = nbr_find_ldpid(pw->lsr_id.s_addr); | |
1656 | if (nbr && nbr->state == NBR_STA_OPER) | |
1657 | session_shutdown(nbr, S_SHUTDOWN, 0, 0); | |
1658 | } | |
1659 | } | |
1660 | if (ldpd_process == PROC_LDE_ENGINE && | |
1661 | !reset_nbr && reinstall_pwfec) | |
1662 | l2vpn_pw_exit(pw); | |
1663 | pw->lsr_id = xp->lsr_id; | |
1664 | pw->af = xp->af; | |
1665 | pw->addr = xp->addr; | |
1666 | pw->pwid = xp->pwid; | |
1667 | strlcpy(pw->ifname, xp->ifname, sizeof(pw->ifname)); | |
1668 | pw->ifindex = xp->ifindex; | |
1669 | if (xp->flags & F_PW_CWORD_CONF) | |
1670 | pw->flags |= F_PW_CWORD_CONF; | |
1671 | else | |
1672 | pw->flags &= ~F_PW_CWORD_CONF; | |
1673 | if (xp->flags & F_PW_STATUSTLV_CONF) | |
1674 | pw->flags |= F_PW_STATUSTLV_CONF; | |
1675 | else | |
1676 | pw->flags &= ~F_PW_STATUSTLV_CONF; | |
eac6e3f0 RW |
1677 | if (xp->flags & F_PW_STATIC_NBR_ADDR) |
1678 | pw->flags |= F_PW_STATIC_NBR_ADDR; | |
1679 | else | |
1680 | pw->flags &= ~F_PW_STATIC_NBR_ADDR; | |
8429abe0 RW |
1681 | if (ldpd_process == PROC_LDP_ENGINE && reinstall_tnbr) |
1682 | ldpe_l2vpn_pw_init(pw); | |
1683 | if (ldpd_process == PROC_LDE_ENGINE && | |
1684 | !reset_nbr && reinstall_pwfec) { | |
1685 | l2vpn->pw_type = xl->pw_type; | |
1686 | l2vpn->mtu = xl->mtu; | |
1687 | l2vpn_pw_init(pw); | |
1688 | l2vpn->pw_type = previous_pw_type; | |
1689 | l2vpn->mtu = previous_mtu; | |
1690 | } | |
1691 | ||
1692 | LIST_REMOVE(xp, entry); | |
b67c140b RW |
1693 | if (ref && *ref == xp) |
1694 | *ref = pw; | |
8429abe0 RW |
1695 | free(xp); |
1696 | } | |
1697 | ||
eac6e3f0 RW |
1698 | /* merge inactive pseudowires */ |
1699 | LIST_FOREACH_SAFE(pw, &l2vpn->pw_inactive_list, entry, ptmp) { | |
1700 | /* find deleted inactive pseudowires */ | |
1701 | if ((xp = l2vpn_pw_find_name(xl, pw->ifname)) == NULL) { | |
1702 | LIST_REMOVE(pw, entry); | |
4af8997d RW |
1703 | if (ldpd_process == PROC_MAIN) |
1704 | QOBJ_UNREG (pw); | |
eac6e3f0 RW |
1705 | free(pw); |
1706 | } | |
1707 | } | |
1708 | LIST_FOREACH_SAFE(xp, &xl->pw_inactive_list, entry, ptmp) { | |
1709 | /* find new inactive pseudowires */ | |
1710 | if ((pw = l2vpn_pw_find_name(l2vpn, xp->ifname)) == NULL) { | |
1711 | LIST_REMOVE(xp, entry); | |
1712 | LIST_INSERT_HEAD(&l2vpn->pw_inactive_list, xp, entry); | |
1713 | xp->l2vpn = l2vpn; | |
4af8997d RW |
1714 | if (ldpd_process == PROC_MAIN) |
1715 | QOBJ_REG (xp, l2vpn_pw); | |
eac6e3f0 RW |
1716 | continue; |
1717 | } | |
1718 | ||
1719 | /* update existing inactive pseudowire */ | |
1720 | pw->lsr_id.s_addr = xp->lsr_id.s_addr; | |
1721 | pw->af = xp->af; | |
1722 | pw->addr = xp->addr; | |
1723 | pw->pwid = xp->pwid; | |
1724 | strlcpy(pw->ifname, xp->ifname, sizeof(pw->ifname)); | |
1725 | pw->ifindex = xp->ifindex; | |
1726 | pw->flags = xp->flags; | |
1727 | ||
1728 | /* check if the pseudowire should be activated */ | |
1729 | if (pw->lsr_id.s_addr != INADDR_ANY && pw->pwid != 0) { | |
1730 | /* remove from inactive list */ | |
1731 | LIST_REMOVE(pw, entry); | |
1732 | LIST_INSERT_HEAD(&l2vpn->pw_list, pw, entry); | |
1733 | ||
1734 | switch (ldpd_process) { | |
1735 | case PROC_LDE_ENGINE: | |
1736 | l2vpn_pw_init(pw); | |
1737 | break; | |
1738 | case PROC_LDP_ENGINE: | |
1739 | ldpe_l2vpn_pw_init(pw); | |
1740 | break; | |
1741 | case PROC_MAIN: | |
1742 | break; | |
1743 | } | |
1744 | } | |
1745 | ||
1746 | LIST_REMOVE(xp, entry); | |
b67c140b RW |
1747 | if (ref && *ref == xp) |
1748 | *ref = pw; | |
eac6e3f0 RW |
1749 | free(xp); |
1750 | } | |
1751 | ||
1752 | /* insert pseudowires that were disabled in the inactive list */ | |
1753 | LIST_FOREACH_SAFE(pw, &pw_aux_list, entry, ptmp) { | |
1754 | LIST_REMOVE(pw, entry); | |
1755 | LIST_INSERT_HEAD(&l2vpn->pw_inactive_list, pw, entry); | |
1756 | } | |
1757 | ||
8429abe0 RW |
1758 | l2vpn->pw_type = xl->pw_type; |
1759 | l2vpn->mtu = xl->mtu; | |
1760 | strlcpy(l2vpn->br_ifname, xl->br_ifname, sizeof(l2vpn->br_ifname)); | |
1761 | l2vpn->br_ifindex = xl->br_ifindex; | |
1762 | } | |
1763 | ||
1764 | struct ldpd_conf * | |
1765 | config_new_empty(void) | |
1766 | { | |
1767 | struct ldpd_conf *xconf; | |
1768 | ||
1769 | xconf = calloc(1, sizeof(*xconf)); | |
1770 | if (xconf == NULL) | |
1771 | fatal(NULL); | |
1772 | ||
7d3d7491 | 1773 | RB_INIT(&xconf->iface_tree); |
7989cdba | 1774 | RB_INIT(&xconf->tnbr_tree); |
76c4abd1 | 1775 | RB_INIT(&xconf->nbrp_tree); |
90d7e7bd | 1776 | RB_INIT(&xconf->l2vpn_tree); |
8429abe0 RW |
1777 | |
1778 | return (xconf); | |
1779 | } | |
1780 | ||
1781 | void | |
1782 | config_clear(struct ldpd_conf *conf) | |
1783 | { | |
1784 | struct ldpd_conf *xconf; | |
1785 | ||
1786 | /* | |
1787 | * Merge current config with an empty config, this will deactivate | |
1788 | * and deallocate all the interfaces, pseudowires and so on. Before | |
1789 | * merging, copy the router-id and other variables to avoid some | |
1790 | * unnecessary operations, like trying to reset the neighborships. | |
1791 | */ | |
1792 | xconf = config_new_empty(); | |
1793 | xconf->ipv4 = conf->ipv4; | |
1794 | xconf->ipv6 = conf->ipv6; | |
1795 | xconf->rtr_id = conf->rtr_id; | |
1796 | xconf->trans_pref = conf->trans_pref; | |
1797 | xconf->flags = conf->flags; | |
1798 | merge_config(conf, xconf); | |
4af8997d RW |
1799 | if (ldpd_process == PROC_MAIN) |
1800 | QOBJ_UNREG (conf); | |
8429abe0 RW |
1801 | free(conf); |
1802 | } |