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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" | |
45a8eba9 | 42 | #include "filter.h" |
4af8997d | 43 | #include "qobj.h" |
4f04a76b | 44 | #include "libfrr.h" |
eac6e3f0 RW |
45 | |
46 | static void ldpd_shutdown(void); | |
28e8294c | 47 | static pid_t start_child(enum ldpd_process, char *, int, int, |
372b8bd3 | 48 | const char *, const char *, const char *); |
eac6e3f0 RW |
49 | static int main_dispatch_ldpe(struct thread *); |
50 | static int main_dispatch_lde(struct thread *); | |
8429abe0 RW |
51 | static int main_imsg_send_ipc_sockets(struct imsgbuf *, |
52 | struct imsgbuf *); | |
53 | static void main_imsg_send_net_sockets(int); | |
54 | static void main_imsg_send_net_socket(int, enum socket_type); | |
55 | static int main_imsg_send_config(struct ldpd_conf *); | |
b67c140b RW |
56 | static void ldp_config_normalize(struct ldpd_conf *, void **); |
57 | static void ldp_config_reset_main(struct ldpd_conf *, void **); | |
58 | static void ldp_config_reset_af(struct ldpd_conf *, int, void **); | |
59 | static void merge_config_ref(struct ldpd_conf *, struct ldpd_conf *, void **); | |
8429abe0 RW |
60 | static void merge_global(struct ldpd_conf *, struct ldpd_conf *); |
61 | static void merge_af(int, struct ldpd_af_conf *, | |
62 | struct ldpd_af_conf *); | |
b67c140b | 63 | static void merge_ifaces(struct ldpd_conf *, struct ldpd_conf *, void **); |
8429abe0 | 64 | static void merge_iface_af(struct iface_af *, struct iface_af *); |
b67c140b RW |
65 | static void merge_tnbrs(struct ldpd_conf *, struct ldpd_conf *, void **); |
66 | static void merge_nbrps(struct ldpd_conf *, struct ldpd_conf *, void **); | |
67 | static void merge_l2vpns(struct ldpd_conf *, struct ldpd_conf *, void **); | |
8429abe0 | 68 | static void merge_l2vpn(struct ldpd_conf *, struct l2vpn *, |
b67c140b | 69 | struct l2vpn *, void **); |
8429abe0 | 70 | |
4af8997d RW |
71 | DEFINE_QOBJ_TYPE(iface) |
72 | DEFINE_QOBJ_TYPE(tnbr) | |
73 | DEFINE_QOBJ_TYPE(nbr_params) | |
74 | DEFINE_QOBJ_TYPE(l2vpn_if) | |
75 | DEFINE_QOBJ_TYPE(l2vpn_pw) | |
76 | DEFINE_QOBJ_TYPE(l2vpn) | |
77 | DEFINE_QOBJ_TYPE(ldpd_conf) | |
78 | ||
8429abe0 RW |
79 | struct ldpd_global global; |
80 | struct ldpd_conf *ldpd_conf; | |
81 | ||
28e8294c RW |
82 | static struct imsgev *iev_ldpe, *iev_ldpe_sync; |
83 | static struct imsgev *iev_lde, *iev_lde_sync; | |
8429abe0 RW |
84 | static pid_t ldpe_pid; |
85 | static pid_t lde_pid; | |
86 | ||
eac6e3f0 RW |
87 | #define LDP_DEFAULT_CONFIG "ldpd.conf" |
88 | #define LDP_VTY_PORT 2612 | |
89 | ||
90 | /* Master of threads. */ | |
91 | struct thread_master *master; | |
92 | ||
93 | /* Process ID saved for use by init system */ | |
94 | static const char *pid_file = PATH_LDPD_PID; | |
95 | ||
96 | /* Configuration filename and directory. */ | |
97 | static char config_default[] = SYSCONFDIR LDP_DEFAULT_CONFIG; | |
98 | ||
99 | /* ldpd privileges */ | |
100 | static zebra_capabilities_t _caps_p [] = | |
8429abe0 | 101 | { |
eac6e3f0 RW |
102 | ZCAP_BIND, |
103 | ZCAP_NET_ADMIN | |
104 | }; | |
105 | ||
106 | struct zebra_privs_t ldpd_privs = | |
107 | { | |
b2f36157 DL |
108 | #if defined(FRR_USER) && defined(FRR_GROUP) |
109 | .user = FRR_USER, | |
110 | .group = FRR_GROUP, | |
eac6e3f0 RW |
111 | #endif |
112 | #if defined(VTY_GROUP) | |
113 | .vty_group = VTY_GROUP, | |
114 | #endif | |
115 | .caps_p = _caps_p, | |
116 | .cap_num_p = array_size(_caps_p), | |
117 | .cap_num_i = 0 | |
118 | }; | |
119 | ||
372b8bd3 RW |
120 | /* CTL Socket path */ |
121 | char ctl_sock_path[MAXPATHLEN] = LDPD_SOCKET; | |
122 | ||
eac6e3f0 | 123 | /* LDPd options. */ |
372b8bd3 | 124 | #define OPTION_CTLSOCK 1001 |
eac6e3f0 RW |
125 | static struct option longopts[] = |
126 | { | |
127 | { "daemon", no_argument, NULL, 'd'}, | |
128 | { "config_file", required_argument, NULL, 'f'}, | |
129 | { "pid_file", required_argument, NULL, 'i'}, | |
130 | { "socket", required_argument, NULL, 'z'}, | |
131 | { "dryrun", no_argument, NULL, 'C'}, | |
372b8bd3 | 132 | { "ctl_socket", required_argument, NULL, OPTION_CTLSOCK}, |
eac6e3f0 RW |
133 | { 0 } |
134 | }; | |
135 | ||
eac6e3f0 RW |
136 | /* SIGHUP handler. */ |
137 | static void | |
138 | sighup(void) | |
139 | { | |
140 | log_info("SIGHUP received"); | |
141 | } | |
142 | ||
143 | /* SIGINT / SIGTERM handler. */ | |
144 | static void | |
145 | sigint(void) | |
8429abe0 | 146 | { |
eac6e3f0 RW |
147 | log_info("SIGINT received"); |
148 | ldpd_shutdown(); | |
149 | } | |
8429abe0 | 150 | |
eac6e3f0 RW |
151 | /* SIGUSR1 handler. */ |
152 | static void | |
153 | sigusr1(void) | |
154 | { | |
155 | zlog_rotate(NULL); | |
8429abe0 RW |
156 | } |
157 | ||
eac6e3f0 RW |
158 | static struct quagga_signal_t ldp_signals[] = |
159 | { | |
160 | { | |
161 | .signal = SIGHUP, | |
162 | .handler = &sighup, | |
163 | }, | |
164 | { | |
165 | .signal = SIGINT, | |
166 | .handler = &sigint, | |
167 | }, | |
168 | { | |
169 | .signal = SIGTERM, | |
170 | .handler = &sigint, | |
171 | }, | |
172 | { | |
173 | .signal = SIGUSR1, | |
174 | .handler = &sigusr1, | |
175 | } | |
176 | }; | |
177 | ||
4f04a76b DL |
178 | FRR_DAEMON_INFO(ldpd, LDP, |
179 | .vty_port = LDP_VTY_PORT, | |
180 | ||
181 | .proghelp = "Implementation of the LDP protocol.", | |
182 | ||
183 | .signals = ldp_signals, | |
184 | .n_signals = array_size(ldp_signals), | |
185 | ||
186 | .privs = &ldpd_privs, | |
187 | ) | |
188 | ||
8429abe0 RW |
189 | int |
190 | main(int argc, char *argv[]) | |
191 | { | |
8429abe0 | 192 | char *saved_argv0; |
eac6e3f0 | 193 | int lflag = 0, eflag = 0; |
28e8294c RW |
194 | int pipe_parent2ldpe[2], pipe_parent2ldpe_sync[2]; |
195 | int pipe_parent2lde[2], pipe_parent2lde_sync[2]; | |
372b8bd3 RW |
196 | char *ctl_sock_custom_path = NULL; |
197 | char *ctl_sock_name; | |
eac6e3f0 RW |
198 | int daemon_mode = 0; |
199 | const char *user = NULL; | |
200 | const char *group = NULL; | |
201 | char *config_file = NULL; | |
eac6e3f0 RW |
202 | struct thread thread; |
203 | int dryrun = 0; | |
8429abe0 | 204 | |
8429abe0 RW |
205 | ldpd_process = PROC_MAIN; |
206 | ||
8429abe0 RW |
207 | saved_argv0 = argv[0]; |
208 | if (saved_argv0 == NULL) | |
eac6e3f0 | 209 | saved_argv0 = (char *)"ldpd"; |
8429abe0 | 210 | |
4f04a76b DL |
211 | frr_preinit(&ldpd_di, argc, argv); |
212 | frr_opt_add("df:i:z:CLE", longopts, | |
213 | " -d, --daemon Runs in daemon mode\n" | |
214 | " -f, --config_file Set configuration file name\n" | |
215 | " -i, --pid_file Set process identifier file name\n" | |
216 | " -z, --socket Set path of zebra socket\n" | |
217 | " --ctl_socket Override ctl socket path\n" | |
218 | " -C, --dryrun Check configuration for validity and exit\n"); | |
219 | ||
eac6e3f0 RW |
220 | while (1) { |
221 | int opt; | |
222 | ||
4f04a76b | 223 | opt = frr_getopt(argc, argv, NULL); |
eac6e3f0 RW |
224 | |
225 | if (opt == EOF) | |
8429abe0 | 226 | break; |
eac6e3f0 RW |
227 | |
228 | switch (opt) { | |
229 | case 0: | |
230 | break; | |
231 | case 'd': | |
232 | daemon_mode = 1; | |
8429abe0 RW |
233 | break; |
234 | case 'f': | |
eac6e3f0 RW |
235 | config_file = optarg; |
236 | break; | |
eac6e3f0 RW |
237 | case 'i': |
238 | pid_file = optarg; | |
239 | break; | |
240 | case 'z': | |
241 | zclient_serv_path_set(optarg); | |
242 | break; | |
372b8bd3 RW |
243 | case OPTION_CTLSOCK: |
244 | ctl_sock_name = strrchr(LDPD_SOCKET, '/'); | |
245 | if (ctl_sock_name) | |
246 | /* skip '/' */ | |
247 | ctl_sock_name++; | |
248 | else | |
249 | /* | |
250 | * LDPD_SOCKET configured as relative path | |
251 | * during config? Should really never happen for | |
252 | * sensible config | |
253 | */ | |
254 | ctl_sock_name = (char *)LDPD_SOCKET; | |
255 | ctl_sock_custom_path = optarg; | |
256 | strlcpy(ctl_sock_path, ctl_sock_custom_path, | |
257 | sizeof(ctl_sock_path)); | |
258 | strlcat(ctl_sock_path, "/", sizeof(ctl_sock_path)); | |
259 | strlcat(ctl_sock_path, ctl_sock_name, | |
260 | sizeof(ctl_sock_path)); | |
261 | break; | |
eac6e3f0 RW |
262 | case 'C': |
263 | dryrun = 1; | |
264 | break; | |
8429abe0 RW |
265 | case 'L': |
266 | lflag = 1; | |
267 | break; | |
268 | case 'E': | |
269 | eflag = 1; | |
270 | break; | |
271 | default: | |
4f04a76b | 272 | frr_help_exit(1); |
eac6e3f0 | 273 | break; |
8429abe0 RW |
274 | } |
275 | } | |
276 | ||
4f04a76b DL |
277 | user = ldpd_privs.user; |
278 | group = ldpd_privs.group; | |
279 | ||
8429abe0 RW |
280 | argc -= optind; |
281 | argv += optind; | |
282 | if (argc > 0 || (lflag && eflag)) | |
4f04a76b | 283 | frr_help_exit(1); |
8429abe0 | 284 | |
eac6e3f0 RW |
285 | /* check for root privileges */ |
286 | if (geteuid() != 0) { | |
287 | errno = EPERM; | |
4f04a76b | 288 | perror(ldpd_di.progname); |
8429abe0 RW |
289 | exit(1); |
290 | } | |
291 | ||
4f04a76b | 292 | zlog_default = openzlog(ldpd_di.progname, ZLOG_LDP, 0, |
eac6e3f0 | 293 | LOG_CONS | LOG_NDELAY | LOG_PID, LOG_DAEMON); |
8429abe0 | 294 | |
eac6e3f0 RW |
295 | if (lflag) |
296 | lde(user, group); | |
297 | else if (eflag) | |
372b8bd3 | 298 | ldpe(user, group, ctl_sock_path); |
8429abe0 | 299 | |
eac6e3f0 | 300 | master = thread_master_create(); |
8429abe0 | 301 | |
eac6e3f0 | 302 | cmd_init(1); |
0b47280e | 303 | vty_config_lockless (); |
eac6e3f0 RW |
304 | vty_init(master); |
305 | vrf_init(); | |
45a8eba9 | 306 | access_list_init (); |
eac6e3f0 RW |
307 | ldp_vty_init(); |
308 | ldp_vty_if_init(); | |
8429abe0 | 309 | |
eac6e3f0 RW |
310 | /* Get configuration file. */ |
311 | ldpd_conf = config_new_empty(); | |
b67c140b | 312 | ldp_config_reset_main(ldpd_conf, NULL); |
eac6e3f0 | 313 | vty_read_config(config_file, config_default); |
8429abe0 | 314 | |
eac6e3f0 RW |
315 | /* Start execution only if not in dry-run mode */ |
316 | if (dryrun) | |
317 | exit(0); | |
318 | ||
4af8997d RW |
319 | QOBJ_REG (ldpd_conf, ldpd_conf); |
320 | ||
eac6e3f0 RW |
321 | if (daemon_mode && daemon(0, 0) < 0) { |
322 | log_warn("LDPd daemon failed"); | |
323 | exit(1); | |
324 | } | |
8429abe0 | 325 | |
eac6e3f0 | 326 | if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe_parent2ldpe) == -1) |
8429abe0 | 327 | fatal("socketpair"); |
28e8294c RW |
328 | if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, |
329 | pipe_parent2ldpe_sync) == -1) | |
330 | fatal("socketpair"); | |
eac6e3f0 | 331 | if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe_parent2lde) == -1) |
8429abe0 | 332 | fatal("socketpair"); |
28e8294c RW |
333 | if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, |
334 | pipe_parent2lde_sync) == -1) | |
335 | fatal("socketpair"); | |
eac6e3f0 RW |
336 | sock_set_nonblock(pipe_parent2ldpe[0]); |
337 | sock_set_cloexec(pipe_parent2ldpe[0]); | |
338 | sock_set_nonblock(pipe_parent2ldpe[1]); | |
339 | sock_set_cloexec(pipe_parent2ldpe[1]); | |
28e8294c RW |
340 | sock_set_nonblock(pipe_parent2ldpe_sync[0]); |
341 | sock_set_cloexec(pipe_parent2ldpe_sync[0]); | |
342 | sock_set_cloexec(pipe_parent2ldpe_sync[1]); | |
eac6e3f0 RW |
343 | sock_set_nonblock(pipe_parent2lde[0]); |
344 | sock_set_cloexec(pipe_parent2lde[0]); | |
345 | sock_set_nonblock(pipe_parent2lde[1]); | |
346 | sock_set_cloexec(pipe_parent2lde[1]); | |
28e8294c RW |
347 | sock_set_nonblock(pipe_parent2lde_sync[0]); |
348 | sock_set_cloexec(pipe_parent2lde_sync[0]); | |
349 | sock_set_cloexec(pipe_parent2lde_sync[1]); | |
8429abe0 RW |
350 | |
351 | /* start children */ | |
352 | lde_pid = start_child(PROC_LDE_ENGINE, saved_argv0, | |
1a35e2e5 DS |
353 | pipe_parent2lde[1], pipe_parent2lde_sync[1], |
354 | user, group, ctl_sock_custom_path); | |
8429abe0 | 355 | ldpe_pid = start_child(PROC_LDP_ENGINE, saved_argv0, |
1a35e2e5 DS |
356 | pipe_parent2ldpe[1], pipe_parent2ldpe_sync[1], |
357 | user, group, ctl_sock_custom_path); | |
8429abe0 | 358 | |
eac6e3f0 | 359 | /* drop privileges */ |
eac6e3f0 | 360 | zprivs_init(&ldpd_privs); |
8429abe0 RW |
361 | |
362 | /* setup signal handler */ | |
eac6e3f0 RW |
363 | signal_init(master, array_size(ldp_signals), ldp_signals); |
364 | ||
365 | /* library inits */ | |
366 | ldp_zebra_init(master); | |
8429abe0 RW |
367 | |
368 | /* setup pipes to children */ | |
28e8294c RW |
369 | if ((iev_ldpe = calloc(1, sizeof(struct imsgev))) == NULL || |
370 | (iev_ldpe_sync = calloc(1, sizeof(struct imsgev))) == NULL || | |
371 | (iev_lde = calloc(1, sizeof(struct imsgev))) == NULL || | |
372 | (iev_lde_sync = calloc(1, sizeof(struct imsgev))) == NULL) | |
8429abe0 RW |
373 | fatal(NULL); |
374 | imsg_init(&iev_ldpe->ibuf, pipe_parent2ldpe[0]); | |
eac6e3f0 RW |
375 | iev_ldpe->handler_read = main_dispatch_ldpe; |
376 | iev_ldpe->ev_read = thread_add_read(master, iev_ldpe->handler_read, | |
377 | iev_ldpe, iev_ldpe->ibuf.fd); | |
378 | iev_ldpe->handler_write = ldp_write_handler; | |
28e8294c RW |
379 | |
380 | imsg_init(&iev_ldpe_sync->ibuf, pipe_parent2ldpe_sync[0]); | |
381 | iev_ldpe_sync->handler_read = main_dispatch_ldpe; | |
382 | iev_ldpe_sync->ev_read = thread_add_read(master, | |
383 | iev_ldpe_sync->handler_read, iev_ldpe_sync, iev_ldpe_sync->ibuf.fd); | |
384 | iev_ldpe_sync->handler_write = ldp_write_handler; | |
8429abe0 | 385 | |
eac6e3f0 RW |
386 | imsg_init(&iev_lde->ibuf, pipe_parent2lde[0]); |
387 | iev_lde->handler_read = main_dispatch_lde; | |
388 | iev_lde->ev_read = thread_add_read(master, iev_lde->handler_read, | |
389 | iev_lde, iev_lde->ibuf.fd); | |
390 | iev_lde->handler_write = ldp_write_handler; | |
28e8294c RW |
391 | |
392 | imsg_init(&iev_lde_sync->ibuf, pipe_parent2lde_sync[0]); | |
393 | iev_lde_sync->handler_read = main_dispatch_lde; | |
394 | iev_lde_sync->ev_read = thread_add_read(master, | |
395 | iev_lde_sync->handler_read, iev_lde_sync, iev_lde_sync->ibuf.fd); | |
396 | iev_lde_sync->handler_write = ldp_write_handler; | |
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 | 412 | /* Create VTY socket */ |
4f04a76b | 413 | frr_vty_serv(LDP_VTYSH_PATH); |
eac6e3f0 RW |
414 | |
415 | /* Print banner. */ | |
4f04a76b | 416 | log_notice("LDPd %s starting: vty@%d", FRR_VERSION, ldpd_di.vty_port); |
eac6e3f0 RW |
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"); | |
64dffe25 RW |
456 | |
457 | vrf_terminate(); | |
45a8eba9 | 458 | access_list_reset(); |
64dffe25 RW |
459 | cmd_terminate(); |
460 | vty_terminate(); | |
461 | ldp_zebra_destroy(); | |
462 | zprivs_terminate(&ldpd_privs); | |
463 | thread_master_free(master); | |
464 | closezlog(zlog_default); | |
465 | ||
8429abe0 RW |
466 | exit(0); |
467 | } | |
468 | ||
469 | static pid_t | |
28e8294c | 470 | start_child(enum ldpd_process p, char *argv0, int fd_async, int fd_sync, |
1a35e2e5 | 471 | const char *user, const char *group, const char *ctl_sock_custom_path) |
8429abe0 | 472 | { |
372b8bd3 | 473 | char *argv[9]; |
8429abe0 RW |
474 | int argc = 0; |
475 | pid_t pid; | |
476 | ||
477 | switch (pid = fork()) { | |
478 | case -1: | |
479 | fatal("cannot fork"); | |
480 | case 0: | |
481 | break; | |
482 | default: | |
28e8294c RW |
483 | close(fd_async); |
484 | close(fd_sync); | |
8429abe0 RW |
485 | return (pid); |
486 | } | |
487 | ||
28e8294c RW |
488 | if (dup2(fd_async, LDPD_FD_ASYNC) == -1) |
489 | fatal("cannot setup imsg async fd"); | |
490 | if (dup2(fd_sync, LDPD_FD_SYNC) == -1) | |
491 | fatal("cannot setup imsg sync fd"); | |
8429abe0 RW |
492 | |
493 | argv[argc++] = argv0; | |
494 | switch (p) { | |
495 | case PROC_MAIN: | |
496 | fatalx("Can not start main process"); | |
497 | case PROC_LDE_ENGINE: | |
eac6e3f0 | 498 | argv[argc++] = (char *)"-L"; |
8429abe0 RW |
499 | break; |
500 | case PROC_LDP_ENGINE: | |
eac6e3f0 | 501 | argv[argc++] = (char *)"-E"; |
8429abe0 RW |
502 | break; |
503 | } | |
eac6e3f0 RW |
504 | if (user) { |
505 | argv[argc++] = (char *)"-u"; | |
506 | argv[argc++] = (char *)user; | |
507 | } | |
508 | if (group) { | |
509 | argv[argc++] = (char *)"-g"; | |
510 | argv[argc++] = (char *)group; | |
511 | } | |
372b8bd3 RW |
512 | if (ctl_sock_custom_path) { |
513 | argv[argc++] = (char *)"--ctl_socket"; | |
514 | argv[argc++] = (char *)ctl_sock_custom_path; | |
515 | } | |
8429abe0 RW |
516 | argv[argc++] = NULL; |
517 | ||
518 | execvp(argv0, argv); | |
519 | fatal("execvp"); | |
520 | } | |
521 | ||
522 | /* imsg handling */ | |
523 | /* ARGSUSED */ | |
eac6e3f0 RW |
524 | static int |
525 | main_dispatch_ldpe(struct thread *thread) | |
8429abe0 | 526 | { |
eac6e3f0 | 527 | struct imsgev *iev = THREAD_ARG(thread); |
8429abe0 RW |
528 | struct imsgbuf *ibuf = &iev->ibuf; |
529 | struct imsg imsg; | |
530 | int af; | |
531 | ssize_t n; | |
eac6e3f0 | 532 | int shut = 0; |
8429abe0 | 533 | |
eac6e3f0 RW |
534 | iev->ev_read = NULL; |
535 | ||
536 | if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN) | |
537 | fatal("imsg_read error"); | |
538 | if (n == 0) /* connection closed */ | |
539 | shut = 1; | |
8429abe0 RW |
540 | |
541 | for (;;) { | |
542 | if ((n = imsg_get(ibuf, &imsg)) == -1) | |
543 | fatal("imsg_get"); | |
544 | ||
545 | if (n == 0) | |
546 | break; | |
547 | ||
548 | switch (imsg.hdr.type) { | |
eac6e3f0 RW |
549 | case IMSG_LOG: |
550 | logit(imsg.hdr.pid, "%s", (const char *)imsg.data); | |
551 | break; | |
8429abe0 RW |
552 | case IMSG_REQUEST_SOCKETS: |
553 | af = imsg.hdr.pid; | |
554 | main_imsg_send_net_sockets(af); | |
555 | break; | |
45a8eba9 RW |
556 | case IMSG_ACL_CHECK: |
557 | if (imsg.hdr.len != IMSG_HEADER_SIZE + | |
558 | sizeof(struct acl_check)) | |
559 | fatalx("IMSG_ACL_CHECK imsg with wrong len"); | |
560 | ldp_acl_reply(iev, (struct acl_check *)imsg.data); | |
561 | break; | |
8429abe0 RW |
562 | default: |
563 | log_debug("%s: error handling imsg %d", __func__, | |
564 | imsg.hdr.type); | |
565 | break; | |
566 | } | |
567 | imsg_free(&imsg); | |
568 | } | |
569 | if (!shut) | |
570 | imsg_event_add(iev); | |
571 | else { | |
eac6e3f0 RW |
572 | /* this pipe is dead, so remove the event handlers and exit */ |
573 | THREAD_READ_OFF(iev->ev_read); | |
574 | THREAD_WRITE_OFF(iev->ev_write); | |
575 | ldpe_pid = 0; | |
576 | if (lde_pid == 0) | |
577 | ldpd_shutdown(); | |
578 | else | |
579 | kill(lde_pid, SIGTERM); | |
8429abe0 | 580 | } |
eac6e3f0 RW |
581 | |
582 | return (0); | |
8429abe0 RW |
583 | } |
584 | ||
585 | /* ARGSUSED */ | |
eac6e3f0 RW |
586 | static int |
587 | main_dispatch_lde(struct thread *thread) | |
8429abe0 | 588 | { |
eac6e3f0 | 589 | struct imsgev *iev = THREAD_ARG(thread); |
8429abe0 RW |
590 | struct imsgbuf *ibuf = &iev->ibuf; |
591 | struct imsg imsg; | |
592 | ssize_t n; | |
593 | int shut = 0; | |
594 | ||
eac6e3f0 RW |
595 | iev->ev_read = NULL; |
596 | ||
597 | if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN) | |
598 | fatal("imsg_read error"); | |
599 | if (n == 0) /* connection closed */ | |
600 | shut = 1; | |
8429abe0 RW |
601 | |
602 | for (;;) { | |
603 | if ((n = imsg_get(ibuf, &imsg)) == -1) | |
604 | fatal("imsg_get"); | |
605 | ||
606 | if (n == 0) | |
607 | break; | |
608 | ||
609 | switch (imsg.hdr.type) { | |
eac6e3f0 RW |
610 | case IMSG_LOG: |
611 | logit(imsg.hdr.pid, "%s", (const char *)imsg.data); | |
612 | break; | |
8429abe0 RW |
613 | case IMSG_KLABEL_CHANGE: |
614 | if (imsg.hdr.len - IMSG_HEADER_SIZE != | |
615 | sizeof(struct kroute)) | |
616 | fatalx("invalid size of IMSG_KLABEL_CHANGE"); | |
617 | if (kr_change(imsg.data)) | |
618 | log_warnx("%s: error changing route", __func__); | |
619 | break; | |
620 | case IMSG_KLABEL_DELETE: | |
621 | if (imsg.hdr.len - IMSG_HEADER_SIZE != | |
622 | sizeof(struct kroute)) | |
623 | fatalx("invalid size of IMSG_KLABEL_DELETE"); | |
624 | if (kr_delete(imsg.data)) | |
625 | log_warnx("%s: error deleting route", __func__); | |
626 | break; | |
627 | case IMSG_KPWLABEL_CHANGE: | |
628 | if (imsg.hdr.len - IMSG_HEADER_SIZE != | |
629 | sizeof(struct kpw)) | |
630 | fatalx("invalid size of IMSG_KPWLABEL_CHANGE"); | |
631 | if (kmpw_set(imsg.data)) | |
632 | log_warnx("%s: error changing pseudowire", | |
633 | __func__); | |
634 | break; | |
635 | case IMSG_KPWLABEL_DELETE: | |
636 | if (imsg.hdr.len - IMSG_HEADER_SIZE != | |
637 | sizeof(struct kpw)) | |
638 | fatalx("invalid size of IMSG_KPWLABEL_DELETE"); | |
639 | if (kmpw_unset(imsg.data)) | |
640 | log_warnx("%s: error unsetting pseudowire", | |
641 | __func__); | |
642 | break; | |
45a8eba9 RW |
643 | case IMSG_ACL_CHECK: |
644 | if (imsg.hdr.len != IMSG_HEADER_SIZE + | |
645 | sizeof(struct acl_check)) | |
646 | fatalx("IMSG_ACL_CHECK imsg with wrong len"); | |
647 | ldp_acl_reply(iev, (struct acl_check *)imsg.data); | |
648 | break; | |
8429abe0 RW |
649 | default: |
650 | log_debug("%s: error handling imsg %d", __func__, | |
651 | imsg.hdr.type); | |
652 | break; | |
653 | } | |
654 | imsg_free(&imsg); | |
655 | } | |
656 | if (!shut) | |
657 | imsg_event_add(iev); | |
658 | else { | |
eac6e3f0 RW |
659 | /* this pipe is dead, so remove the event handlers and exit */ |
660 | THREAD_READ_OFF(iev->ev_read); | |
661 | THREAD_WRITE_OFF(iev->ev_write); | |
662 | lde_pid = 0; | |
663 | if (ldpe_pid == 0) | |
664 | ldpd_shutdown(); | |
665 | else | |
666 | kill(ldpe_pid, SIGTERM); | |
8429abe0 | 667 | } |
eac6e3f0 RW |
668 | |
669 | return (0); | |
670 | } | |
671 | ||
672 | /* ARGSUSED */ | |
673 | int | |
674 | ldp_write_handler(struct thread *thread) | |
675 | { | |
676 | struct imsgev *iev = THREAD_ARG(thread); | |
677 | struct imsgbuf *ibuf = &iev->ibuf; | |
678 | ssize_t n; | |
679 | ||
680 | iev->ev_write = NULL; | |
681 | ||
682 | if ((n = msgbuf_write(&ibuf->w)) == -1 && errno != EAGAIN) | |
683 | fatal("msgbuf_write"); | |
684 | if (n == 0) { | |
685 | /* this pipe is dead, so remove the event handlers */ | |
686 | THREAD_READ_OFF(iev->ev_read); | |
687 | THREAD_WRITE_OFF(iev->ev_write); | |
688 | return (0); | |
689 | } | |
690 | ||
691 | imsg_event_add(iev); | |
692 | ||
693 | return (0); | |
8429abe0 RW |
694 | } |
695 | ||
696 | void | |
697 | main_imsg_compose_ldpe(int type, pid_t pid, void *data, uint16_t datalen) | |
698 | { | |
699 | if (iev_ldpe == NULL) | |
700 | return; | |
701 | imsg_compose_event(iev_ldpe, type, 0, pid, -1, data, datalen); | |
702 | } | |
703 | ||
704 | void | |
705 | main_imsg_compose_lde(int type, pid_t pid, void *data, uint16_t datalen) | |
706 | { | |
707 | imsg_compose_event(iev_lde, type, 0, pid, -1, data, datalen); | |
708 | } | |
709 | ||
eac6e3f0 | 710 | int |
8429abe0 RW |
711 | main_imsg_compose_both(enum imsg_type type, void *buf, uint16_t len) |
712 | { | |
eac6e3f0 RW |
713 | if (iev_ldpe == NULL || iev_lde == NULL) |
714 | return (0); | |
8429abe0 RW |
715 | if (imsg_compose_event(iev_ldpe, type, 0, 0, -1, buf, len) == -1) |
716 | return (-1); | |
717 | if (imsg_compose_event(iev_lde, type, 0, 0, -1, buf, len) == -1) | |
718 | return (-1); | |
719 | return (0); | |
720 | } | |
721 | ||
722 | void | |
723 | imsg_event_add(struct imsgev *iev) | |
724 | { | |
28e8294c RW |
725 | if (iev->handler_read) |
726 | THREAD_READ_ON(master, iev->ev_read, iev->handler_read, iev, | |
727 | iev->ibuf.fd); | |
8429abe0 | 728 | |
28e8294c | 729 | if (iev->handler_write && iev->ibuf.w.queued) |
eac6e3f0 RW |
730 | THREAD_WRITE_ON(master, iev->ev_write, iev->handler_write, iev, |
731 | iev->ibuf.fd); | |
8429abe0 RW |
732 | } |
733 | ||
734 | int | |
735 | imsg_compose_event(struct imsgev *iev, uint16_t type, uint32_t peerid, | |
736 | pid_t pid, int fd, void *data, uint16_t datalen) | |
737 | { | |
738 | int ret; | |
739 | ||
740 | if ((ret = imsg_compose(&iev->ibuf, type, peerid, | |
741 | pid, fd, data, datalen)) != -1) | |
742 | imsg_event_add(iev); | |
743 | return (ret); | |
744 | } | |
745 | ||
746 | void | |
747 | evbuf_enqueue(struct evbuf *eb, struct ibuf *buf) | |
748 | { | |
749 | ibuf_close(&eb->wbuf, buf); | |
750 | evbuf_event_add(eb); | |
751 | } | |
752 | ||
753 | void | |
754 | evbuf_event_add(struct evbuf *eb) | |
755 | { | |
756 | if (eb->wbuf.queued) | |
eac6e3f0 RW |
757 | THREAD_WRITE_ON(master, eb->ev, eb->handler, eb->arg, |
758 | eb->wbuf.fd); | |
8429abe0 RW |
759 | } |
760 | ||
761 | void | |
eac6e3f0 | 762 | evbuf_init(struct evbuf *eb, int fd, int (*handler)(struct thread *), |
8429abe0 RW |
763 | void *arg) |
764 | { | |
765 | msgbuf_init(&eb->wbuf); | |
766 | eb->wbuf.fd = fd; | |
eac6e3f0 RW |
767 | eb->handler = handler; |
768 | eb->arg = arg; | |
8429abe0 RW |
769 | } |
770 | ||
771 | void | |
772 | evbuf_clear(struct evbuf *eb) | |
773 | { | |
eac6e3f0 | 774 | THREAD_WRITE_OFF(eb->ev); |
8429abe0 RW |
775 | msgbuf_clear(&eb->wbuf); |
776 | eb->wbuf.fd = -1; | |
777 | } | |
778 | ||
779 | static int | |
780 | main_imsg_send_ipc_sockets(struct imsgbuf *ldpe_buf, struct imsgbuf *lde_buf) | |
781 | { | |
782 | int pipe_ldpe2lde[2]; | |
783 | ||
eac6e3f0 | 784 | if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe_ldpe2lde) == -1) |
8429abe0 | 785 | return (-1); |
eac6e3f0 RW |
786 | sock_set_nonblock(pipe_ldpe2lde[0]); |
787 | sock_set_nonblock(pipe_ldpe2lde[1]); | |
8429abe0 RW |
788 | |
789 | if (imsg_compose(ldpe_buf, IMSG_SOCKET_IPC, 0, 0, pipe_ldpe2lde[0], | |
790 | NULL, 0) == -1) | |
791 | return (-1); | |
792 | if (imsg_compose(lde_buf, IMSG_SOCKET_IPC, 0, 0, pipe_ldpe2lde[1], | |
793 | NULL, 0) == -1) | |
794 | return (-1); | |
795 | ||
796 | return (0); | |
797 | } | |
798 | ||
799 | static void | |
800 | main_imsg_send_net_sockets(int af) | |
801 | { | |
eac6e3f0 RW |
802 | if (!ldp_addrisset(af, &(ldp_af_conf_get(ldpd_conf, af))->trans_addr)) |
803 | return; | |
804 | ||
8429abe0 RW |
805 | main_imsg_send_net_socket(af, LDP_SOCKET_DISC); |
806 | main_imsg_send_net_socket(af, LDP_SOCKET_EDISC); | |
807 | main_imsg_send_net_socket(af, LDP_SOCKET_SESSION); | |
808 | imsg_compose_event(iev_ldpe, IMSG_SETUP_SOCKETS, af, 0, -1, NULL, 0); | |
809 | } | |
810 | ||
811 | static void | |
812 | main_imsg_send_net_socket(int af, enum socket_type type) | |
813 | { | |
814 | int fd; | |
815 | ||
816 | fd = ldp_create_socket(af, type); | |
817 | if (fd == -1) { | |
818 | log_warnx("%s: failed to create %s socket for address-family " | |
819 | "%s", __func__, socket_name(type), af_name(af)); | |
820 | return; | |
821 | } | |
822 | ||
823 | imsg_compose_event(iev_ldpe, IMSG_SOCKET_NET, af, 0, fd, &type, | |
824 | sizeof(type)); | |
825 | } | |
826 | ||
45a8eba9 RW |
827 | int |
828 | ldp_acl_request(struct imsgev *iev, char *acl_name, int af, | |
829 | union ldpd_addr *addr, uint8_t prefixlen) | |
830 | { | |
831 | struct imsg imsg; | |
832 | ssize_t n; | |
833 | struct acl_check acl_check; | |
834 | ||
835 | if (acl_name[0] == '\0') | |
836 | return FILTER_PERMIT; | |
837 | ||
838 | /* build request */ | |
839 | strlcpy(acl_check.acl, acl_name, sizeof(acl_check.acl)); | |
840 | acl_check.af = af; | |
841 | acl_check.addr = *addr; | |
842 | acl_check.prefixlen = prefixlen; | |
843 | ||
844 | /* send (blocking) */ | |
845 | imsg_compose_event(iev, IMSG_ACL_CHECK, 0, 0, -1, &acl_check, | |
846 | sizeof(acl_check)); | |
847 | imsg_flush(&iev->ibuf); | |
848 | ||
849 | /* receive (blocking) and parse result */ | |
850 | if ((n = imsg_read(&iev->ibuf)) == -1) | |
851 | fatal("imsg_read error"); | |
852 | if ((n = imsg_get(&iev->ibuf, &imsg)) == -1) | |
853 | fatal("imsg_get"); | |
854 | if (imsg.hdr.type != IMSG_ACL_CHECK || | |
855 | imsg.hdr.len != IMSG_HEADER_SIZE + sizeof(int)) | |
856 | fatalx("ldp_acl_request: invalid response"); | |
857 | ||
858 | return (*((int *)imsg.data)); | |
859 | } | |
860 | ||
861 | void | |
862 | ldp_acl_reply(struct imsgev *iev, struct acl_check *acl_check) | |
863 | { | |
864 | struct access_list *alist; | |
865 | struct prefix prefix; | |
866 | int result; | |
867 | ||
868 | alist = access_list_lookup(family2afi(acl_check->af), acl_check->acl); | |
869 | if (alist == NULL) | |
870 | result = FILTER_DENY; | |
871 | else { | |
872 | prefix.family = acl_check->af; | |
873 | switch (prefix.family) { | |
874 | case AF_INET: | |
875 | prefix.u.prefix4 = acl_check->addr.v4; | |
876 | break; | |
877 | case AF_INET6: | |
878 | prefix.u.prefix6 = acl_check->addr.v6; | |
879 | break; | |
880 | default: | |
881 | fatalx("ldp_acl_reply: unknown af"); | |
882 | } | |
883 | prefix.prefixlen = acl_check->prefixlen; | |
884 | result = access_list_apply(alist, &prefix); | |
885 | } | |
886 | ||
887 | imsg_compose_event(iev, IMSG_ACL_CHECK, 0, 0, -1, &result, | |
888 | sizeof(result)); | |
889 | } | |
890 | ||
8429abe0 RW |
891 | struct ldpd_af_conf * |
892 | ldp_af_conf_get(struct ldpd_conf *xconf, int af) | |
893 | { | |
894 | switch (af) { | |
895 | case AF_INET: | |
896 | return (&xconf->ipv4); | |
897 | case AF_INET6: | |
898 | return (&xconf->ipv6); | |
899 | default: | |
900 | fatalx("ldp_af_conf_get: unknown af"); | |
901 | } | |
902 | } | |
903 | ||
904 | struct ldpd_af_global * | |
905 | ldp_af_global_get(struct ldpd_global *xglobal, int af) | |
906 | { | |
907 | switch (af) { | |
908 | case AF_INET: | |
909 | return (&xglobal->ipv4); | |
910 | case AF_INET6: | |
911 | return (&xglobal->ipv6); | |
912 | default: | |
913 | fatalx("ldp_af_global_get: unknown af"); | |
914 | } | |
915 | } | |
916 | ||
917 | int | |
918 | ldp_is_dual_stack(struct ldpd_conf *xconf) | |
919 | { | |
920 | return ((xconf->ipv4.flags & F_LDPD_AF_ENABLED) && | |
921 | (xconf->ipv6.flags & F_LDPD_AF_ENABLED)); | |
922 | } | |
923 | ||
eac6e3f0 RW |
924 | in_addr_t |
925 | ldp_rtr_id_get(struct ldpd_conf *xconf) | |
926 | { | |
927 | if (xconf->rtr_id.s_addr != INADDR_ANY) | |
928 | return (xconf->rtr_id.s_addr); | |
929 | else | |
930 | return (global.rtr_id.s_addr); | |
931 | } | |
932 | ||
8429abe0 RW |
933 | static int |
934 | main_imsg_send_config(struct ldpd_conf *xconf) | |
935 | { | |
936 | struct iface *iface; | |
937 | struct tnbr *tnbr; | |
938 | struct nbr_params *nbrp; | |
939 | struct l2vpn *l2vpn; | |
940 | struct l2vpn_if *lif; | |
941 | struct l2vpn_pw *pw; | |
942 | ||
943 | if (main_imsg_compose_both(IMSG_RECONF_CONF, xconf, | |
944 | sizeof(*xconf)) == -1) | |
945 | return (-1); | |
946 | ||
7d3d7491 | 947 | RB_FOREACH(iface, iface_head, &xconf->iface_tree) { |
8429abe0 RW |
948 | if (main_imsg_compose_both(IMSG_RECONF_IFACE, iface, |
949 | sizeof(*iface)) == -1) | |
950 | return (-1); | |
951 | } | |
952 | ||
7989cdba | 953 | RB_FOREACH(tnbr, tnbr_head, &xconf->tnbr_tree) { |
8429abe0 RW |
954 | if (main_imsg_compose_both(IMSG_RECONF_TNBR, tnbr, |
955 | sizeof(*tnbr)) == -1) | |
956 | return (-1); | |
957 | } | |
958 | ||
76c4abd1 | 959 | RB_FOREACH(nbrp, nbrp_head, &xconf->nbrp_tree) { |
8429abe0 RW |
960 | if (main_imsg_compose_both(IMSG_RECONF_NBRP, nbrp, |
961 | sizeof(*nbrp)) == -1) | |
962 | return (-1); | |
963 | } | |
964 | ||
90d7e7bd | 965 | RB_FOREACH(l2vpn, l2vpn_head, &xconf->l2vpn_tree) { |
8429abe0 RW |
966 | if (main_imsg_compose_both(IMSG_RECONF_L2VPN, l2vpn, |
967 | sizeof(*l2vpn)) == -1) | |
968 | return (-1); | |
969 | ||
029c1958 | 970 | RB_FOREACH(lif, l2vpn_if_head, &l2vpn->if_tree) { |
8429abe0 RW |
971 | if (main_imsg_compose_both(IMSG_RECONF_L2VPN_IF, lif, |
972 | sizeof(*lif)) == -1) | |
973 | return (-1); | |
974 | } | |
20bacaeb | 975 | RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_tree) { |
8429abe0 RW |
976 | if (main_imsg_compose_both(IMSG_RECONF_L2VPN_PW, pw, |
977 | sizeof(*pw)) == -1) | |
978 | return (-1); | |
979 | } | |
20bacaeb | 980 | RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_inactive_tree) { |
eac6e3f0 RW |
981 | if (main_imsg_compose_both(IMSG_RECONF_L2VPN_IPW, pw, |
982 | sizeof(*pw)) == -1) | |
983 | return (-1); | |
984 | } | |
8429abe0 RW |
985 | } |
986 | ||
987 | if (main_imsg_compose_both(IMSG_RECONF_END, NULL, 0) == -1) | |
988 | return (-1); | |
989 | ||
990 | return (0); | |
991 | } | |
992 | ||
eac6e3f0 | 993 | int |
b67c140b | 994 | ldp_reload_ref(struct ldpd_conf *xconf, void **ref) |
8429abe0 | 995 | { |
b67c140b | 996 | ldp_config_normalize(xconf, ref); |
8429abe0 RW |
997 | |
998 | if (main_imsg_send_config(xconf) == -1) | |
999 | return (-1); | |
1000 | ||
b67c140b | 1001 | merge_config_ref(ldpd_conf, xconf, ref); |
8429abe0 RW |
1002 | |
1003 | return (0); | |
1004 | } | |
1005 | ||
b67c140b RW |
1006 | int |
1007 | ldp_reload(struct ldpd_conf *xconf) | |
1008 | { | |
1009 | return ldp_reload_ref(xconf, NULL); | |
1010 | } | |
1011 | ||
eac6e3f0 | 1012 | static void |
b67c140b | 1013 | ldp_config_normalize(struct ldpd_conf *xconf, void **ref) |
eac6e3f0 RW |
1014 | { |
1015 | struct l2vpn *l2vpn; | |
1016 | struct l2vpn_pw *pw; | |
1017 | ||
1018 | if (!(xconf->flags & F_LDPD_ENABLED)) | |
b67c140b | 1019 | ldp_config_reset_main(xconf, ref); |
eac6e3f0 RW |
1020 | else { |
1021 | if (!(xconf->ipv4.flags & F_LDPD_AF_ENABLED)) | |
b67c140b | 1022 | ldp_config_reset_af(xconf, AF_INET, ref); |
eac6e3f0 | 1023 | if (!(xconf->ipv6.flags & F_LDPD_AF_ENABLED)) |
b67c140b | 1024 | ldp_config_reset_af(xconf, AF_INET6, ref); |
eac6e3f0 RW |
1025 | } |
1026 | ||
90d7e7bd | 1027 | RB_FOREACH(l2vpn, l2vpn_head, &xconf->l2vpn_tree) { |
20bacaeb | 1028 | RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_tree) { |
eac6e3f0 RW |
1029 | if (pw->flags & F_PW_STATIC_NBR_ADDR) |
1030 | continue; | |
1031 | ||
1032 | pw->af = AF_INET; | |
1033 | pw->addr.v4 = pw->lsr_id; | |
1034 | } | |
20bacaeb | 1035 | RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_inactive_tree) { |
eac6e3f0 RW |
1036 | if (pw->flags & F_PW_STATIC_NBR_ADDR) |
1037 | continue; | |
1038 | ||
1039 | pw->af = AF_INET; | |
1040 | pw->addr.v4 = pw->lsr_id; | |
1041 | } | |
1042 | } | |
1043 | } | |
1044 | ||
1045 | static void | |
b67c140b | 1046 | ldp_config_reset_main(struct ldpd_conf *conf, void **ref) |
eac6e3f0 RW |
1047 | { |
1048 | struct iface *iface; | |
1049 | struct nbr_params *nbrp; | |
1050 | ||
7d3d7491 | 1051 | while ((iface = RB_ROOT(&conf->iface_tree)) != NULL) { |
b67c140b RW |
1052 | if (ref && *ref == iface) |
1053 | *ref = NULL; | |
7d3d7491 | 1054 | RB_REMOVE(iface_head, &conf->iface_tree, iface); |
eac6e3f0 RW |
1055 | free(iface); |
1056 | } | |
1057 | ||
76c4abd1 | 1058 | while ((nbrp = RB_ROOT(&conf->nbrp_tree)) != NULL) { |
b67c140b RW |
1059 | if (ref && *ref == nbrp) |
1060 | *ref = NULL; | |
76c4abd1 | 1061 | RB_REMOVE(nbrp_head, &conf->nbrp_tree, nbrp); |
eac6e3f0 RW |
1062 | free(nbrp); |
1063 | } | |
1064 | ||
1065 | conf->rtr_id.s_addr = INADDR_ANY; | |
b67c140b RW |
1066 | ldp_config_reset_af(conf, AF_INET, ref); |
1067 | ldp_config_reset_af(conf, AF_INET6, ref); | |
eac6e3f0 RW |
1068 | conf->lhello_holdtime = LINK_DFLT_HOLDTIME; |
1069 | conf->lhello_interval = DEFAULT_HELLO_INTERVAL; | |
1070 | conf->thello_holdtime = TARGETED_DFLT_HOLDTIME; | |
1071 | conf->thello_interval = DEFAULT_HELLO_INTERVAL; | |
1072 | conf->trans_pref = DUAL_STACK_LDPOV6; | |
1073 | conf->flags = 0; | |
1074 | } | |
1075 | ||
1076 | static void | |
b67c140b | 1077 | ldp_config_reset_af(struct ldpd_conf *conf, int af, void **ref) |
eac6e3f0 RW |
1078 | { |
1079 | struct ldpd_af_conf *af_conf; | |
1080 | struct iface *iface; | |
1081 | struct iface_af *ia; | |
1082 | struct tnbr *tnbr, *ttmp; | |
1083 | ||
7d3d7491 | 1084 | RB_FOREACH(iface, iface_head, &conf->iface_tree) { |
eac6e3f0 RW |
1085 | ia = iface_af_get(iface, af); |
1086 | ia->enabled = 0; | |
1087 | } | |
1088 | ||
7989cdba | 1089 | RB_FOREACH_SAFE(tnbr, tnbr_head, &conf->tnbr_tree, ttmp) { |
eac6e3f0 RW |
1090 | if (tnbr->af != af) |
1091 | continue; | |
1092 | ||
b67c140b RW |
1093 | if (ref && *ref == tnbr) |
1094 | *ref = NULL; | |
7989cdba | 1095 | RB_REMOVE(tnbr_head, &conf->tnbr_tree, tnbr); |
eac6e3f0 RW |
1096 | free(tnbr); |
1097 | } | |
1098 | ||
1099 | af_conf = ldp_af_conf_get(conf, af); | |
1100 | af_conf->keepalive = 180; | |
1101 | af_conf->lhello_holdtime = 0; | |
1102 | af_conf->lhello_interval = 0; | |
1103 | af_conf->thello_holdtime = 0; | |
1104 | af_conf->thello_interval = 0; | |
1105 | memset(&af_conf->trans_addr, 0, sizeof(af_conf->trans_addr)); | |
1106 | af_conf->flags = 0; | |
1107 | } | |
1108 | ||
1109 | struct ldpd_conf * | |
b67c140b | 1110 | ldp_dup_config_ref(struct ldpd_conf *conf, void **ref) |
eac6e3f0 RW |
1111 | { |
1112 | struct ldpd_conf *xconf; | |
1113 | struct iface *iface, *xi; | |
1114 | struct tnbr *tnbr, *xt; | |
1115 | struct nbr_params *nbrp, *xn; | |
1116 | struct l2vpn *l2vpn, *xl; | |
1117 | struct l2vpn_if *lif, *xf; | |
1118 | struct l2vpn_pw *pw, *xp; | |
1119 | ||
b67c140b RW |
1120 | #define COPY(a, b) do { \ |
1121 | a = calloc(1, sizeof(*a)); \ | |
1122 | if (a == NULL) \ | |
1123 | fatal(__func__); \ | |
1124 | *a = *b; \ | |
1125 | if (ref && *ref == b) *ref = a; \ | |
1126 | } while (0) | |
1127 | ||
1128 | COPY(xconf, conf); | |
7d3d7491 | 1129 | RB_INIT(&xconf->iface_tree); |
7989cdba | 1130 | RB_INIT(&xconf->tnbr_tree); |
76c4abd1 | 1131 | RB_INIT(&xconf->nbrp_tree); |
90d7e7bd | 1132 | RB_INIT(&xconf->l2vpn_tree); |
eac6e3f0 | 1133 | |
7d3d7491 | 1134 | RB_FOREACH(iface, iface_head, &conf->iface_tree) { |
b67c140b | 1135 | COPY(xi, iface); |
eac6e3f0 RW |
1136 | xi->ipv4.iface = xi; |
1137 | xi->ipv6.iface = xi; | |
7d3d7491 | 1138 | RB_INSERT(iface_head, &xconf->iface_tree, xi); |
eac6e3f0 | 1139 | } |
7989cdba | 1140 | RB_FOREACH(tnbr, tnbr_head, &conf->tnbr_tree) { |
b67c140b | 1141 | COPY(xt, tnbr); |
7989cdba | 1142 | RB_INSERT(tnbr_head, &xconf->tnbr_tree, xt); |
eac6e3f0 | 1143 | } |
76c4abd1 | 1144 | RB_FOREACH(nbrp, nbrp_head, &conf->nbrp_tree) { |
b67c140b | 1145 | COPY(xn, nbrp); |
76c4abd1 | 1146 | RB_INSERT(nbrp_head, &xconf->nbrp_tree, xn); |
eac6e3f0 | 1147 | } |
90d7e7bd | 1148 | RB_FOREACH(l2vpn, l2vpn_head, &conf->l2vpn_tree) { |
b67c140b | 1149 | COPY(xl, l2vpn); |
029c1958 | 1150 | RB_INIT(&xl->if_tree); |
20bacaeb RW |
1151 | RB_INIT(&xl->pw_tree); |
1152 | RB_INIT(&xl->pw_inactive_tree); | |
90d7e7bd | 1153 | RB_INSERT(l2vpn_head, &xconf->l2vpn_tree, xl); |
eac6e3f0 | 1154 | |
029c1958 | 1155 | RB_FOREACH(lif, l2vpn_if_head, &l2vpn->if_tree) { |
b67c140b | 1156 | COPY(xf, lif); |
eac6e3f0 | 1157 | xf->l2vpn = xl; |
029c1958 | 1158 | RB_INSERT(l2vpn_if_head, &xl->if_tree, xf); |
eac6e3f0 | 1159 | } |
20bacaeb | 1160 | RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_tree) { |
b67c140b | 1161 | COPY(xp, pw); |
eac6e3f0 | 1162 | xp->l2vpn = xl; |
20bacaeb | 1163 | RB_INSERT(l2vpn_pw_head, &xl->pw_tree, xp); |
eac6e3f0 | 1164 | } |
20bacaeb | 1165 | RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_inactive_tree) { |
b67c140b | 1166 | COPY(xp, pw); |
eac6e3f0 | 1167 | xp->l2vpn = xl; |
20bacaeb | 1168 | RB_INSERT(l2vpn_pw_head, &xl->pw_inactive_tree, xp); |
eac6e3f0 RW |
1169 | } |
1170 | } | |
b67c140b | 1171 | #undef COPY |
eac6e3f0 RW |
1172 | |
1173 | return (xconf); | |
1174 | } | |
1175 | ||
b67c140b RW |
1176 | struct ldpd_conf * |
1177 | ldp_dup_config(struct ldpd_conf *conf) | |
1178 | { | |
1179 | return ldp_dup_config_ref(conf, NULL); | |
1180 | } | |
1181 | ||
eac6e3f0 RW |
1182 | void |
1183 | ldp_clear_config(struct ldpd_conf *xconf) | |
1184 | { | |
1185 | struct iface *iface; | |
1186 | struct tnbr *tnbr; | |
1187 | struct nbr_params *nbrp; | |
1188 | struct l2vpn *l2vpn; | |
1189 | ||
7d3d7491 RW |
1190 | while ((iface = RB_ROOT(&xconf->iface_tree)) != NULL) { |
1191 | RB_REMOVE(iface_head, &xconf->iface_tree, iface); | |
eac6e3f0 RW |
1192 | free(iface); |
1193 | } | |
7989cdba RW |
1194 | while ((tnbr = RB_ROOT(&xconf->tnbr_tree)) != NULL) { |
1195 | RB_REMOVE(tnbr_head, &xconf->tnbr_tree, tnbr); | |
eac6e3f0 RW |
1196 | free(tnbr); |
1197 | } | |
76c4abd1 RW |
1198 | while ((nbrp = RB_ROOT(&xconf->nbrp_tree)) != NULL) { |
1199 | RB_REMOVE(nbrp_head, &xconf->nbrp_tree, nbrp); | |
eac6e3f0 RW |
1200 | free(nbrp); |
1201 | } | |
90d7e7bd RW |
1202 | while ((l2vpn = RB_ROOT(&xconf->l2vpn_tree)) != NULL) { |
1203 | RB_REMOVE(l2vpn_head, &xconf->l2vpn_tree, l2vpn); | |
eac6e3f0 RW |
1204 | l2vpn_del(l2vpn); |
1205 | } | |
1206 | ||
1207 | free(xconf); | |
1208 | } | |
1209 | ||
b67c140b RW |
1210 | static void |
1211 | merge_config_ref(struct ldpd_conf *conf, struct ldpd_conf *xconf, void **ref) | |
8429abe0 RW |
1212 | { |
1213 | merge_global(conf, xconf); | |
1214 | merge_af(AF_INET, &conf->ipv4, &xconf->ipv4); | |
1215 | merge_af(AF_INET6, &conf->ipv6, &xconf->ipv6); | |
b67c140b RW |
1216 | merge_ifaces(conf, xconf, ref); |
1217 | merge_tnbrs(conf, xconf, ref); | |
1218 | merge_nbrps(conf, xconf, ref); | |
1219 | merge_l2vpns(conf, xconf, ref); | |
1220 | if (ref && *ref == xconf) | |
1221 | *ref = conf; | |
8429abe0 RW |
1222 | free(xconf); |
1223 | } | |
1224 | ||
b67c140b RW |
1225 | void |
1226 | merge_config(struct ldpd_conf *conf, struct ldpd_conf *xconf) | |
1227 | { | |
1228 | merge_config_ref(conf, xconf, NULL); | |
1229 | } | |
1230 | ||
8429abe0 RW |
1231 | static void |
1232 | merge_global(struct ldpd_conf *conf, struct ldpd_conf *xconf) | |
1233 | { | |
1234 | /* change of router-id requires resetting all neighborships */ | |
1235 | if (conf->rtr_id.s_addr != xconf->rtr_id.s_addr) { | |
1236 | if (ldpd_process == PROC_LDP_ENGINE) { | |
45a8eba9 | 1237 | ldpe_reset_nbrs(AF_UNSPEC); |
8429abe0 RW |
1238 | if (conf->rtr_id.s_addr == INADDR_ANY || |
1239 | xconf->rtr_id.s_addr == INADDR_ANY) { | |
1240 | if_update_all(AF_UNSPEC); | |
1241 | tnbr_update_all(AF_UNSPEC); | |
1242 | } | |
1243 | } | |
1244 | conf->rtr_id = xconf->rtr_id; | |
1245 | } | |
1246 | ||
eac6e3f0 RW |
1247 | conf->lhello_holdtime = xconf->lhello_holdtime; |
1248 | conf->lhello_interval = xconf->lhello_interval; | |
1249 | conf->thello_holdtime = xconf->thello_holdtime; | |
1250 | conf->thello_interval = xconf->thello_interval; | |
1251 | ||
8429abe0 RW |
1252 | if (conf->trans_pref != xconf->trans_pref) { |
1253 | if (ldpd_process == PROC_LDP_ENGINE) | |
1254 | ldpe_reset_ds_nbrs(); | |
1255 | conf->trans_pref = xconf->trans_pref; | |
1256 | } | |
1257 | ||
1258 | if ((conf->flags & F_LDPD_DS_CISCO_INTEROP) != | |
1259 | (xconf->flags & F_LDPD_DS_CISCO_INTEROP)) { | |
1260 | if (ldpd_process == PROC_LDP_ENGINE) | |
1261 | ldpe_reset_ds_nbrs(); | |
1262 | } | |
1263 | ||
1264 | conf->flags = xconf->flags; | |
1265 | } | |
1266 | ||
1267 | static void | |
1268 | merge_af(int af, struct ldpd_af_conf *af_conf, struct ldpd_af_conf *xa) | |
1269 | { | |
45a8eba9 RW |
1270 | int stop_init_backoff = 0; |
1271 | int remove_dynamic_tnbrs = 0; | |
1272 | int change_egress_label = 0; | |
1273 | int reset_nbrs_ipv4 = 0; | |
1274 | int reset_nbrs = 0; | |
1275 | int update_sockets = 0; | |
1276 | ||
1277 | /* update timers */ | |
8429abe0 RW |
1278 | if (af_conf->keepalive != xa->keepalive) { |
1279 | af_conf->keepalive = xa->keepalive; | |
45a8eba9 | 1280 | stop_init_backoff = 1; |
8429abe0 | 1281 | } |
eac6e3f0 RW |
1282 | af_conf->lhello_holdtime = xa->lhello_holdtime; |
1283 | af_conf->lhello_interval = xa->lhello_interval; | |
8429abe0 RW |
1284 | af_conf->thello_holdtime = xa->thello_holdtime; |
1285 | af_conf->thello_interval = xa->thello_interval; | |
1286 | ||
1287 | /* update flags */ | |
45a8eba9 | 1288 | if ((af_conf->flags & F_LDPD_AF_THELLO_ACCEPT) && |
8429abe0 | 1289 | !(xa->flags & F_LDPD_AF_THELLO_ACCEPT)) |
45a8eba9 | 1290 | remove_dynamic_tnbrs = 1; |
8429abe0 RW |
1291 | if ((af_conf->flags & F_LDPD_AF_NO_GTSM) != |
1292 | (xa->flags & F_LDPD_AF_NO_GTSM)) { | |
1293 | if (af == AF_INET6) | |
1294 | /* need to set/unset IPV6_MINHOPCOUNT */ | |
1295 | update_sockets = 1; | |
45a8eba9 | 1296 | else |
8429abe0 | 1297 | /* for LDPv4 just resetting the neighbors is enough */ |
45a8eba9 | 1298 | reset_nbrs_ipv4 = 1; |
8429abe0 | 1299 | } |
8429abe0 RW |
1300 | if ((af_conf->flags & F_LDPD_AF_EXPNULL) != |
1301 | (xa->flags & F_LDPD_AF_EXPNULL)) | |
45a8eba9 | 1302 | change_egress_label = 1; |
8429abe0 RW |
1303 | af_conf->flags = xa->flags; |
1304 | ||
45a8eba9 | 1305 | /* update the transport address */ |
8429abe0 RW |
1306 | if (ldp_addrcmp(af, &af_conf->trans_addr, &xa->trans_addr)) { |
1307 | af_conf->trans_addr = xa->trans_addr; | |
1308 | update_sockets = 1; | |
1309 | } | |
1310 | ||
45a8eba9 RW |
1311 | /* update ACLs */ |
1312 | if (strcmp(af_conf->acl_label_advertise_to, | |
1313 | xa->acl_label_advertise_to) || | |
1314 | strcmp(af_conf->acl_label_advertise_for, | |
1315 | xa->acl_label_advertise_for) || | |
1316 | strcmp(af_conf->acl_label_accept_from, | |
1317 | xa->acl_label_accept_from) || | |
1318 | strcmp(af_conf->acl_label_accept_for, | |
1319 | xa->acl_label_accept_for)) | |
1320 | reset_nbrs = 1; | |
1321 | if (strcmp(af_conf->acl_thello_accept_from, xa->acl_thello_accept_from)) | |
1322 | remove_dynamic_tnbrs = 1; | |
1323 | if (strcmp(af_conf->acl_label_expnull_for, xa->acl_label_expnull_for)) | |
1324 | change_egress_label = 1; | |
1325 | strlcpy(af_conf->acl_thello_accept_from, xa->acl_thello_accept_from, | |
1326 | sizeof(af_conf->acl_thello_accept_from)); | |
1327 | strlcpy(af_conf->acl_label_allocate_for, xa->acl_label_allocate_for, | |
1328 | sizeof(af_conf->acl_label_allocate_for)); | |
1329 | strlcpy(af_conf->acl_label_advertise_to, xa->acl_label_advertise_to, | |
1330 | sizeof(af_conf->acl_label_advertise_to)); | |
1331 | strlcpy(af_conf->acl_label_advertise_for, xa->acl_label_advertise_for, | |
1332 | sizeof(af_conf->acl_label_advertise_for)); | |
1333 | strlcpy(af_conf->acl_label_accept_from, xa->acl_label_accept_from, | |
1334 | sizeof(af_conf->acl_label_accept_from)); | |
1335 | strlcpy(af_conf->acl_label_accept_for, xa->acl_label_accept_for, | |
1336 | sizeof(af_conf->acl_label_accept_for)); | |
1337 | strlcpy(af_conf->acl_label_expnull_for, xa->acl_label_expnull_for, | |
1338 | sizeof(af_conf->acl_label_expnull_for)); | |
1339 | ||
1340 | /* apply the new configuration */ | |
1341 | switch (ldpd_process) { | |
1342 | case PROC_LDE_ENGINE: | |
1343 | if (change_egress_label) | |
1344 | lde_change_egress_label(af); | |
1345 | break; | |
1346 | case PROC_LDP_ENGINE: | |
1347 | if (stop_init_backoff) | |
1348 | ldpe_stop_init_backoff(af); | |
1349 | if (remove_dynamic_tnbrs) | |
1350 | ldpe_remove_dynamic_tnbrs(af); | |
1351 | if (reset_nbrs) | |
1352 | ldpe_reset_nbrs(AF_UNSPEC); | |
1353 | else if (reset_nbrs_ipv4) | |
1354 | ldpe_reset_nbrs(AF_INET); | |
1355 | break; | |
1356 | case PROC_MAIN: | |
1357 | if (update_sockets && iev_ldpe) | |
1358 | imsg_compose_event(iev_ldpe, IMSG_CLOSE_SOCKETS, af, | |
1359 | 0, -1, NULL, 0); | |
1360 | break; | |
1361 | } | |
8429abe0 RW |
1362 | } |
1363 | ||
1364 | static void | |
b67c140b | 1365 | merge_ifaces(struct ldpd_conf *conf, struct ldpd_conf *xconf, void **ref) |
8429abe0 RW |
1366 | { |
1367 | struct iface *iface, *itmp, *xi; | |
1368 | ||
7d3d7491 | 1369 | RB_FOREACH_SAFE(iface, iface_head, &conf->iface_tree, itmp) { |
8429abe0 | 1370 | /* find deleted interfaces */ |
eac6e3f0 | 1371 | if ((xi = if_lookup_name(xconf, iface->name)) == NULL) { |
7d3d7491 | 1372 | RB_REMOVE(iface_head, &conf->iface_tree, iface); |
4af8997d RW |
1373 | |
1374 | switch (ldpd_process) { | |
1375 | case PROC_LDE_ENGINE: | |
1376 | break; | |
1377 | case PROC_LDP_ENGINE: | |
8429abe0 | 1378 | if_exit(iface); |
4af8997d RW |
1379 | break; |
1380 | case PROC_MAIN: | |
1381 | QOBJ_UNREG (iface); | |
1382 | break; | |
1383 | } | |
8429abe0 RW |
1384 | free(iface); |
1385 | } | |
1386 | } | |
7d3d7491 | 1387 | RB_FOREACH_SAFE(xi, iface_head, &xconf->iface_tree, itmp) { |
8429abe0 | 1388 | /* find new interfaces */ |
eac6e3f0 | 1389 | if ((iface = if_lookup_name(conf, xi->name)) == NULL) { |
7d3d7491 RW |
1390 | RB_REMOVE(iface_head, &xconf->iface_tree, xi); |
1391 | RB_INSERT(iface_head, &conf->iface_tree, xi); | |
8429abe0 | 1392 | |
4af8997d RW |
1393 | if (ldpd_process == PROC_MAIN) { |
1394 | QOBJ_REG (xi, iface); | |
1395 | /* resend addresses to activate new interfaces */ | |
8429abe0 | 1396 | kif_redistribute(xi->name); |
4af8997d | 1397 | } |
8429abe0 RW |
1398 | continue; |
1399 | } | |
1400 | ||
1401 | /* update existing interfaces */ | |
1402 | merge_iface_af(&iface->ipv4, &xi->ipv4); | |
1403 | merge_iface_af(&iface->ipv6, &xi->ipv6); | |
7d3d7491 | 1404 | RB_REMOVE(iface_head, &xconf->iface_tree, xi); |
b67c140b RW |
1405 | if (ref && *ref == xi) |
1406 | *ref = iface; | |
8429abe0 RW |
1407 | free(xi); |
1408 | } | |
1409 | } | |
1410 | ||
1411 | static void | |
1412 | merge_iface_af(struct iface_af *ia, struct iface_af *xi) | |
1413 | { | |
1414 | if (ia->enabled != xi->enabled) { | |
1415 | ia->enabled = xi->enabled; | |
1416 | if (ldpd_process == PROC_LDP_ENGINE) | |
1417 | if_update(ia->iface, ia->af); | |
1418 | } | |
1419 | ia->hello_holdtime = xi->hello_holdtime; | |
1420 | ia->hello_interval = xi->hello_interval; | |
1421 | } | |
1422 | ||
1423 | static void | |
b67c140b | 1424 | merge_tnbrs(struct ldpd_conf *conf, struct ldpd_conf *xconf, void **ref) |
8429abe0 RW |
1425 | { |
1426 | struct tnbr *tnbr, *ttmp, *xt; | |
1427 | ||
7989cdba | 1428 | RB_FOREACH_SAFE(tnbr, tnbr_head, &conf->tnbr_tree, ttmp) { |
8429abe0 RW |
1429 | if (!(tnbr->flags & F_TNBR_CONFIGURED)) |
1430 | continue; | |
1431 | ||
1432 | /* find deleted tnbrs */ | |
1433 | if ((xt = tnbr_find(xconf, tnbr->af, &tnbr->addr)) == NULL) { | |
4af8997d RW |
1434 | switch (ldpd_process) { |
1435 | case PROC_LDE_ENGINE: | |
7989cdba | 1436 | RB_REMOVE(tnbr_head, &conf->tnbr_tree, tnbr); |
4af8997d RW |
1437 | free(tnbr); |
1438 | break; | |
1439 | case PROC_LDP_ENGINE: | |
8429abe0 | 1440 | tnbr->flags &= ~F_TNBR_CONFIGURED; |
7989cdba | 1441 | tnbr_check(conf, tnbr); |
4af8997d RW |
1442 | break; |
1443 | case PROC_MAIN: | |
7989cdba | 1444 | RB_REMOVE(tnbr_head, &conf->tnbr_tree, tnbr); |
4af8997d | 1445 | QOBJ_UNREG (tnbr); |
8429abe0 | 1446 | free(tnbr); |
4af8997d | 1447 | break; |
8429abe0 RW |
1448 | } |
1449 | } | |
1450 | } | |
7989cdba | 1451 | RB_FOREACH_SAFE(xt, tnbr_head, &xconf->tnbr_tree, ttmp) { |
8429abe0 RW |
1452 | /* find new tnbrs */ |
1453 | if ((tnbr = tnbr_find(conf, xt->af, &xt->addr)) == NULL) { | |
7989cdba RW |
1454 | RB_REMOVE(tnbr_head, &xconf->tnbr_tree, xt); |
1455 | RB_INSERT(tnbr_head, &conf->tnbr_tree, xt); | |
8429abe0 | 1456 | |
4af8997d RW |
1457 | switch (ldpd_process) { |
1458 | case PROC_LDE_ENGINE: | |
1459 | break; | |
1460 | case PROC_LDP_ENGINE: | |
8429abe0 | 1461 | tnbr_update(xt); |
4af8997d RW |
1462 | break; |
1463 | case PROC_MAIN: | |
1464 | QOBJ_REG (xt, tnbr); | |
1465 | break; | |
1466 | } | |
8429abe0 RW |
1467 | continue; |
1468 | } | |
1469 | ||
1470 | /* update existing tnbrs */ | |
1471 | if (!(tnbr->flags & F_TNBR_CONFIGURED)) | |
1472 | tnbr->flags |= F_TNBR_CONFIGURED; | |
7989cdba | 1473 | RB_REMOVE(tnbr_head, &xconf->tnbr_tree, xt); |
b67c140b RW |
1474 | if (ref && *ref == xt) |
1475 | *ref = tnbr; | |
8429abe0 RW |
1476 | free(xt); |
1477 | } | |
1478 | } | |
1479 | ||
1480 | static void | |
b67c140b | 1481 | merge_nbrps(struct ldpd_conf *conf, struct ldpd_conf *xconf, void **ref) |
8429abe0 RW |
1482 | { |
1483 | struct nbr_params *nbrp, *ntmp, *xn; | |
1484 | struct nbr *nbr; | |
1485 | int nbrp_changed; | |
1486 | ||
76c4abd1 | 1487 | RB_FOREACH_SAFE(nbrp, nbrp_head, &conf->nbrp_tree, ntmp) { |
8429abe0 RW |
1488 | /* find deleted nbrps */ |
1489 | if ((xn = nbr_params_find(xconf, nbrp->lsr_id)) == NULL) { | |
4af8997d RW |
1490 | switch (ldpd_process) { |
1491 | case PROC_LDE_ENGINE: | |
1492 | break; | |
1493 | case PROC_LDP_ENGINE: | |
8429abe0 RW |
1494 | nbr = nbr_find_ldpid(nbrp->lsr_id.s_addr); |
1495 | if (nbr) { | |
1496 | session_shutdown(nbr, S_SHUTDOWN, 0, 0); | |
eac6e3f0 | 1497 | #ifdef __OpenBSD__ |
8429abe0 | 1498 | pfkey_remove(nbr); |
eac6e3f0 RW |
1499 | #else |
1500 | sock_set_md5sig( | |
1501 | (ldp_af_global_get(&global, | |
1502 | nbr->af))->ldp_session_socket, | |
1503 | nbr->af, &nbr->raddr, NULL); | |
1504 | #endif | |
8429abe0 RW |
1505 | if (nbr_session_active_role(nbr)) |
1506 | nbr_establish_connection(nbr); | |
1507 | } | |
4af8997d RW |
1508 | break; |
1509 | case PROC_MAIN: | |
1510 | QOBJ_UNREG (nbrp); | |
1511 | break; | |
8429abe0 | 1512 | } |
76c4abd1 | 1513 | RB_REMOVE(nbrp_head, &conf->nbrp_tree, nbrp); |
8429abe0 RW |
1514 | free(nbrp); |
1515 | } | |
1516 | } | |
76c4abd1 | 1517 | RB_FOREACH_SAFE(xn, nbrp_head, &xconf->nbrp_tree, ntmp) { |
8429abe0 RW |
1518 | /* find new nbrps */ |
1519 | if ((nbrp = nbr_params_find(conf, xn->lsr_id)) == NULL) { | |
76c4abd1 RW |
1520 | RB_REMOVE(nbrp_head, &xconf->nbrp_tree, xn); |
1521 | RB_INSERT(nbrp_head, &conf->nbrp_tree, xn); | |
8429abe0 | 1522 | |
4af8997d RW |
1523 | switch (ldpd_process) { |
1524 | case PROC_LDE_ENGINE: | |
1525 | break; | |
1526 | case PROC_LDP_ENGINE: | |
8429abe0 RW |
1527 | nbr = nbr_find_ldpid(xn->lsr_id.s_addr); |
1528 | if (nbr) { | |
1529 | session_shutdown(nbr, S_SHUTDOWN, 0, 0); | |
eac6e3f0 | 1530 | #ifdef __OpenBSD__ |
8429abe0 RW |
1531 | if (pfkey_establish(nbr, xn) == -1) |
1532 | fatalx("pfkey setup failed"); | |
eac6e3f0 RW |
1533 | #else |
1534 | sock_set_md5sig( | |
1535 | (ldp_af_global_get(&global, | |
1536 | nbr->af))->ldp_session_socket, | |
1537 | nbr->af, &nbr->raddr, | |
1538 | xn->auth.md5key); | |
1539 | #endif | |
8429abe0 RW |
1540 | if (nbr_session_active_role(nbr)) |
1541 | nbr_establish_connection(nbr); | |
1542 | } | |
4af8997d RW |
1543 | break; |
1544 | case PROC_MAIN: | |
1545 | QOBJ_REG (xn, nbr_params); | |
1546 | break; | |
8429abe0 RW |
1547 | } |
1548 | continue; | |
1549 | } | |
1550 | ||
1551 | /* update existing nbrps */ | |
1552 | if (nbrp->flags != xn->flags || | |
1553 | nbrp->keepalive != xn->keepalive || | |
1554 | nbrp->gtsm_enabled != xn->gtsm_enabled || | |
1555 | nbrp->gtsm_hops != xn->gtsm_hops || | |
1556 | nbrp->auth.method != xn->auth.method || | |
1557 | strcmp(nbrp->auth.md5key, xn->auth.md5key) != 0) | |
1558 | nbrp_changed = 1; | |
1559 | else | |
1560 | nbrp_changed = 0; | |
1561 | ||
1562 | nbrp->keepalive = xn->keepalive; | |
1563 | nbrp->gtsm_enabled = xn->gtsm_enabled; | |
1564 | nbrp->gtsm_hops = xn->gtsm_hops; | |
1565 | nbrp->auth.method = xn->auth.method; | |
1566 | strlcpy(nbrp->auth.md5key, xn->auth.md5key, | |
1567 | sizeof(nbrp->auth.md5key)); | |
1568 | nbrp->auth.md5key_len = xn->auth.md5key_len; | |
1569 | nbrp->flags = xn->flags; | |
1570 | ||
1571 | if (ldpd_process == PROC_LDP_ENGINE) { | |
1572 | nbr = nbr_find_ldpid(nbrp->lsr_id.s_addr); | |
1573 | if (nbr && nbrp_changed) { | |
1574 | session_shutdown(nbr, S_SHUTDOWN, 0, 0); | |
eac6e3f0 | 1575 | #ifdef __OpenBSD__ |
8429abe0 RW |
1576 | pfkey_remove(nbr); |
1577 | if (pfkey_establish(nbr, nbrp) == -1) | |
1578 | fatalx("pfkey setup failed"); | |
eac6e3f0 RW |
1579 | #else |
1580 | sock_set_md5sig((ldp_af_global_get(&global, | |
1581 | nbr->af))->ldp_session_socket, nbr->af, | |
1582 | &nbr->raddr, nbrp->auth.md5key); | |
1583 | #endif | |
8429abe0 RW |
1584 | if (nbr_session_active_role(nbr)) |
1585 | nbr_establish_connection(nbr); | |
1586 | } | |
1587 | } | |
76c4abd1 | 1588 | RB_REMOVE(nbrp_head, &xconf->nbrp_tree, xn); |
b67c140b RW |
1589 | if (ref && *ref == xn) |
1590 | *ref = nbrp; | |
8429abe0 RW |
1591 | free(xn); |
1592 | } | |
1593 | } | |
1594 | ||
1595 | static void | |
b67c140b | 1596 | merge_l2vpns(struct ldpd_conf *conf, struct ldpd_conf *xconf, void **ref) |
8429abe0 RW |
1597 | { |
1598 | struct l2vpn *l2vpn, *ltmp, *xl; | |
4af8997d RW |
1599 | struct l2vpn_if *lif; |
1600 | struct l2vpn_pw *pw; | |
8429abe0 | 1601 | |
90d7e7bd | 1602 | RB_FOREACH_SAFE(l2vpn, l2vpn_head, &conf->l2vpn_tree, ltmp) { |
8429abe0 RW |
1603 | /* find deleted l2vpns */ |
1604 | if ((xl = l2vpn_find(xconf, l2vpn->name)) == NULL) { | |
90d7e7bd | 1605 | RB_REMOVE(l2vpn_head, &conf->l2vpn_tree, l2vpn); |
8429abe0 RW |
1606 | |
1607 | switch (ldpd_process) { | |
1608 | case PROC_LDE_ENGINE: | |
1609 | l2vpn_exit(l2vpn); | |
1610 | break; | |
1611 | case PROC_LDP_ENGINE: | |
1612 | ldpe_l2vpn_exit(l2vpn); | |
1613 | break; | |
1614 | case PROC_MAIN: | |
029c1958 | 1615 | RB_FOREACH(lif, l2vpn_if_head, &l2vpn->if_tree) |
4af8997d | 1616 | QOBJ_UNREG (lif); |
20bacaeb | 1617 | RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_tree) |
4af8997d | 1618 | QOBJ_UNREG (pw); |
20bacaeb | 1619 | RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_inactive_tree) |
4af8997d RW |
1620 | QOBJ_UNREG (pw); |
1621 | QOBJ_UNREG (l2vpn); | |
8429abe0 RW |
1622 | break; |
1623 | } | |
1624 | l2vpn_del(l2vpn); | |
1625 | } | |
1626 | } | |
90d7e7bd | 1627 | RB_FOREACH_SAFE(xl, l2vpn_head, &xconf->l2vpn_tree, ltmp) { |
8429abe0 RW |
1628 | /* find new l2vpns */ |
1629 | if ((l2vpn = l2vpn_find(conf, xl->name)) == NULL) { | |
90d7e7bd RW |
1630 | RB_REMOVE(l2vpn_head, &xconf->l2vpn_tree, xl); |
1631 | RB_INSERT(l2vpn_head, &conf->l2vpn_tree, xl); | |
8429abe0 RW |
1632 | |
1633 | switch (ldpd_process) { | |
1634 | case PROC_LDE_ENGINE: | |
1635 | l2vpn_init(xl); | |
1636 | break; | |
1637 | case PROC_LDP_ENGINE: | |
1638 | ldpe_l2vpn_init(xl); | |
1639 | break; | |
1640 | case PROC_MAIN: | |
4af8997d | 1641 | QOBJ_REG (xl, l2vpn); |
8429abe0 RW |
1642 | break; |
1643 | } | |
1644 | continue; | |
1645 | } | |
1646 | ||
1647 | /* update existing l2vpns */ | |
b67c140b | 1648 | merge_l2vpn(conf, l2vpn, xl, ref); |
90d7e7bd | 1649 | RB_REMOVE(l2vpn_head, &xconf->l2vpn_tree, xl); |
b67c140b RW |
1650 | if (ref && *ref == xl) |
1651 | *ref = l2vpn; | |
8429abe0 RW |
1652 | free(xl); |
1653 | } | |
1654 | } | |
1655 | ||
1656 | static void | |
b67c140b | 1657 | merge_l2vpn(struct ldpd_conf *xconf, struct l2vpn *l2vpn, struct l2vpn *xl, void **ref) |
8429abe0 RW |
1658 | { |
1659 | struct l2vpn_if *lif, *ftmp, *xf; | |
1660 | struct l2vpn_pw *pw, *ptmp, *xp; | |
1661 | struct nbr *nbr; | |
1662 | int reset_nbr, reinstall_pwfec, reinstall_tnbr; | |
20bacaeb | 1663 | struct l2vpn_pw_head pw_aux_list; |
8429abe0 RW |
1664 | int previous_pw_type, previous_mtu; |
1665 | ||
1666 | previous_pw_type = l2vpn->pw_type; | |
1667 | previous_mtu = l2vpn->mtu; | |
1668 | ||
1669 | /* merge intefaces */ | |
029c1958 | 1670 | RB_FOREACH_SAFE(lif, l2vpn_if_head, &l2vpn->if_tree, ftmp) { |
8429abe0 | 1671 | /* find deleted interfaces */ |
eac6e3f0 | 1672 | if ((xf = l2vpn_if_find_name(xl, lif->ifname)) == NULL) { |
4af8997d RW |
1673 | if (ldpd_process == PROC_MAIN) |
1674 | QOBJ_UNREG (lif); | |
029c1958 | 1675 | RB_REMOVE(l2vpn_if_head, &l2vpn->if_tree, lif); |
8429abe0 RW |
1676 | free(lif); |
1677 | } | |
1678 | } | |
029c1958 | 1679 | RB_FOREACH_SAFE(xf, l2vpn_if_head, &xl->if_tree, ftmp) { |
8429abe0 | 1680 | /* find new interfaces */ |
eac6e3f0 | 1681 | if ((lif = l2vpn_if_find_name(l2vpn, xf->ifname)) == NULL) { |
029c1958 RW |
1682 | RB_REMOVE(l2vpn_if_head, &xl->if_tree, xf); |
1683 | RB_INSERT(l2vpn_if_head, &l2vpn->if_tree, xf); | |
8429abe0 | 1684 | xf->l2vpn = l2vpn; |
4af8997d RW |
1685 | if (ldpd_process == PROC_MAIN) |
1686 | QOBJ_REG (xf, l2vpn_if); | |
8429abe0 RW |
1687 | continue; |
1688 | } | |
1689 | ||
029c1958 | 1690 | RB_REMOVE(l2vpn_if_head, &xl->if_tree, xf); |
b67c140b RW |
1691 | if (ref && *ref == xf) |
1692 | *ref = lif; | |
8429abe0 RW |
1693 | free(xf); |
1694 | } | |
1695 | ||
eac6e3f0 | 1696 | /* merge active pseudowires */ |
20bacaeb RW |
1697 | RB_INIT(&pw_aux_list); |
1698 | RB_FOREACH_SAFE(pw, l2vpn_pw_head, &l2vpn->pw_tree, ptmp) { | |
eac6e3f0 RW |
1699 | /* find deleted active pseudowires */ |
1700 | if ((xp = l2vpn_pw_find_name(xl, pw->ifname)) == NULL) { | |
8429abe0 RW |
1701 | switch (ldpd_process) { |
1702 | case PROC_LDE_ENGINE: | |
1703 | l2vpn_pw_exit(pw); | |
1704 | break; | |
1705 | case PROC_LDP_ENGINE: | |
1706 | ldpe_l2vpn_pw_exit(pw); | |
1707 | break; | |
1708 | case PROC_MAIN: | |
4af8997d | 1709 | QOBJ_UNREG (pw); |
8429abe0 RW |
1710 | break; |
1711 | } | |
1712 | ||
20bacaeb | 1713 | RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_tree, pw); |
8429abe0 RW |
1714 | free(pw); |
1715 | } | |
1716 | } | |
20bacaeb | 1717 | RB_FOREACH_SAFE(xp, l2vpn_pw_head, &xl->pw_tree, ptmp) { |
eac6e3f0 RW |
1718 | /* find new active pseudowires */ |
1719 | if ((pw = l2vpn_pw_find_name(l2vpn, xp->ifname)) == NULL) { | |
20bacaeb RW |
1720 | RB_REMOVE(l2vpn_pw_head, &xl->pw_tree, xp); |
1721 | RB_INSERT(l2vpn_pw_head, &l2vpn->pw_tree, xp); | |
8429abe0 RW |
1722 | xp->l2vpn = l2vpn; |
1723 | ||
1724 | switch (ldpd_process) { | |
1725 | case PROC_LDE_ENGINE: | |
1726 | l2vpn_pw_init(xp); | |
1727 | break; | |
1728 | case PROC_LDP_ENGINE: | |
1729 | ldpe_l2vpn_pw_init(xp); | |
1730 | break; | |
1731 | case PROC_MAIN: | |
4af8997d | 1732 | QOBJ_REG (xp, l2vpn_pw); |
8429abe0 RW |
1733 | break; |
1734 | } | |
1735 | continue; | |
1736 | } | |
1737 | ||
eac6e3f0 | 1738 | /* update existing active pseudowire */ |
8429abe0 RW |
1739 | if (pw->af != xp->af || |
1740 | ldp_addrcmp(pw->af, &pw->addr, &xp->addr)) | |
1741 | reinstall_tnbr = 1; | |
1742 | else | |
1743 | reinstall_tnbr = 0; | |
1744 | ||
1745 | /* changes that require a session restart */ | |
1746 | if ((pw->flags & (F_PW_STATUSTLV_CONF|F_PW_CWORD_CONF)) != | |
1747 | (xp->flags & (F_PW_STATUSTLV_CONF|F_PW_CWORD_CONF))) | |
1748 | reset_nbr = 1; | |
1749 | else | |
1750 | reset_nbr = 0; | |
1751 | ||
1752 | if (l2vpn->pw_type != xl->pw_type || l2vpn->mtu != xl->mtu || | |
1753 | pw->pwid != xp->pwid || reinstall_tnbr || reset_nbr || | |
1754 | pw->lsr_id.s_addr != xp->lsr_id.s_addr) | |
1755 | reinstall_pwfec = 1; | |
1756 | else | |
1757 | reinstall_pwfec = 0; | |
1758 | ||
eac6e3f0 RW |
1759 | /* check if the pseudowire should be disabled */ |
1760 | if (xp->lsr_id.s_addr == INADDR_ANY || xp->pwid == 0) { | |
1761 | reinstall_tnbr = 0; | |
1762 | reset_nbr = 0; | |
1763 | reinstall_pwfec = 0; | |
1764 | ||
1765 | switch (ldpd_process) { | |
1766 | case PROC_LDE_ENGINE: | |
1767 | l2vpn_pw_exit(pw); | |
1768 | break; | |
1769 | case PROC_LDP_ENGINE: | |
1770 | ldpe_l2vpn_pw_exit(pw); | |
1771 | break; | |
1772 | case PROC_MAIN: | |
1773 | break; | |
1774 | } | |
1775 | ||
1776 | /* remove from active list */ | |
20bacaeb RW |
1777 | RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_tree, pw); |
1778 | RB_INSERT(l2vpn_pw_head, &pw_aux_list, pw); | |
eac6e3f0 RW |
1779 | } |
1780 | ||
8429abe0 RW |
1781 | if (ldpd_process == PROC_LDP_ENGINE) { |
1782 | if (reinstall_tnbr) | |
1783 | ldpe_l2vpn_pw_exit(pw); | |
1784 | if (reset_nbr) { | |
1785 | nbr = nbr_find_ldpid(pw->lsr_id.s_addr); | |
1786 | if (nbr && nbr->state == NBR_STA_OPER) | |
1787 | session_shutdown(nbr, S_SHUTDOWN, 0, 0); | |
1788 | } | |
1789 | } | |
1790 | if (ldpd_process == PROC_LDE_ENGINE && | |
1791 | !reset_nbr && reinstall_pwfec) | |
1792 | l2vpn_pw_exit(pw); | |
1793 | pw->lsr_id = xp->lsr_id; | |
1794 | pw->af = xp->af; | |
1795 | pw->addr = xp->addr; | |
1796 | pw->pwid = xp->pwid; | |
1797 | strlcpy(pw->ifname, xp->ifname, sizeof(pw->ifname)); | |
1798 | pw->ifindex = xp->ifindex; | |
1799 | if (xp->flags & F_PW_CWORD_CONF) | |
1800 | pw->flags |= F_PW_CWORD_CONF; | |
1801 | else | |
1802 | pw->flags &= ~F_PW_CWORD_CONF; | |
1803 | if (xp->flags & F_PW_STATUSTLV_CONF) | |
1804 | pw->flags |= F_PW_STATUSTLV_CONF; | |
1805 | else | |
1806 | pw->flags &= ~F_PW_STATUSTLV_CONF; | |
eac6e3f0 RW |
1807 | if (xp->flags & F_PW_STATIC_NBR_ADDR) |
1808 | pw->flags |= F_PW_STATIC_NBR_ADDR; | |
1809 | else | |
1810 | pw->flags &= ~F_PW_STATIC_NBR_ADDR; | |
8429abe0 RW |
1811 | if (ldpd_process == PROC_LDP_ENGINE && reinstall_tnbr) |
1812 | ldpe_l2vpn_pw_init(pw); | |
1813 | if (ldpd_process == PROC_LDE_ENGINE && | |
1814 | !reset_nbr && reinstall_pwfec) { | |
1815 | l2vpn->pw_type = xl->pw_type; | |
1816 | l2vpn->mtu = xl->mtu; | |
1817 | l2vpn_pw_init(pw); | |
1818 | l2vpn->pw_type = previous_pw_type; | |
1819 | l2vpn->mtu = previous_mtu; | |
1820 | } | |
1821 | ||
20bacaeb | 1822 | RB_REMOVE(l2vpn_pw_head, &xl->pw_tree, xp); |
b67c140b RW |
1823 | if (ref && *ref == xp) |
1824 | *ref = pw; | |
8429abe0 RW |
1825 | free(xp); |
1826 | } | |
1827 | ||
eac6e3f0 | 1828 | /* merge inactive pseudowires */ |
20bacaeb | 1829 | RB_FOREACH_SAFE(pw, l2vpn_pw_head, &l2vpn->pw_inactive_tree, ptmp) { |
eac6e3f0 RW |
1830 | /* find deleted inactive pseudowires */ |
1831 | if ((xp = l2vpn_pw_find_name(xl, pw->ifname)) == NULL) { | |
20bacaeb | 1832 | RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_inactive_tree, pw); |
4af8997d RW |
1833 | if (ldpd_process == PROC_MAIN) |
1834 | QOBJ_UNREG (pw); | |
eac6e3f0 RW |
1835 | free(pw); |
1836 | } | |
1837 | } | |
20bacaeb | 1838 | RB_FOREACH_SAFE(xp, l2vpn_pw_head, &xl->pw_inactive_tree, ptmp) { |
eac6e3f0 RW |
1839 | /* find new inactive pseudowires */ |
1840 | if ((pw = l2vpn_pw_find_name(l2vpn, xp->ifname)) == NULL) { | |
20bacaeb RW |
1841 | RB_REMOVE(l2vpn_pw_head, &xl->pw_inactive_tree, xp); |
1842 | RB_INSERT(l2vpn_pw_head, &l2vpn->pw_inactive_tree, xp); | |
eac6e3f0 | 1843 | xp->l2vpn = l2vpn; |
4af8997d RW |
1844 | if (ldpd_process == PROC_MAIN) |
1845 | QOBJ_REG (xp, l2vpn_pw); | |
eac6e3f0 RW |
1846 | continue; |
1847 | } | |
1848 | ||
1849 | /* update existing inactive pseudowire */ | |
1850 | pw->lsr_id.s_addr = xp->lsr_id.s_addr; | |
1851 | pw->af = xp->af; | |
1852 | pw->addr = xp->addr; | |
1853 | pw->pwid = xp->pwid; | |
1854 | strlcpy(pw->ifname, xp->ifname, sizeof(pw->ifname)); | |
1855 | pw->ifindex = xp->ifindex; | |
1856 | pw->flags = xp->flags; | |
1857 | ||
1858 | /* check if the pseudowire should be activated */ | |
1859 | if (pw->lsr_id.s_addr != INADDR_ANY && pw->pwid != 0) { | |
1860 | /* remove from inactive list */ | |
20bacaeb RW |
1861 | RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_inactive_tree, pw); |
1862 | RB_INSERT(l2vpn_pw_head, &l2vpn->pw_tree, pw); | |
eac6e3f0 RW |
1863 | |
1864 | switch (ldpd_process) { | |
1865 | case PROC_LDE_ENGINE: | |
1866 | l2vpn_pw_init(pw); | |
1867 | break; | |
1868 | case PROC_LDP_ENGINE: | |
1869 | ldpe_l2vpn_pw_init(pw); | |
1870 | break; | |
1871 | case PROC_MAIN: | |
1872 | break; | |
1873 | } | |
1874 | } | |
1875 | ||
20bacaeb | 1876 | RB_REMOVE(l2vpn_pw_head, &xl->pw_inactive_tree, xp); |
b67c140b RW |
1877 | if (ref && *ref == xp) |
1878 | *ref = pw; | |
eac6e3f0 RW |
1879 | free(xp); |
1880 | } | |
1881 | ||
1882 | /* insert pseudowires that were disabled in the inactive list */ | |
20bacaeb RW |
1883 | RB_FOREACH_SAFE(pw, l2vpn_pw_head, &pw_aux_list, ptmp) { |
1884 | RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_tree, pw); | |
1885 | RB_INSERT(l2vpn_pw_head, &l2vpn->pw_inactive_tree, pw); | |
eac6e3f0 RW |
1886 | } |
1887 | ||
8429abe0 RW |
1888 | l2vpn->pw_type = xl->pw_type; |
1889 | l2vpn->mtu = xl->mtu; | |
1890 | strlcpy(l2vpn->br_ifname, xl->br_ifname, sizeof(l2vpn->br_ifname)); | |
1891 | l2vpn->br_ifindex = xl->br_ifindex; | |
1892 | } | |
1893 | ||
1894 | struct ldpd_conf * | |
1895 | config_new_empty(void) | |
1896 | { | |
1897 | struct ldpd_conf *xconf; | |
1898 | ||
1899 | xconf = calloc(1, sizeof(*xconf)); | |
1900 | if (xconf == NULL) | |
1901 | fatal(NULL); | |
1902 | ||
7d3d7491 | 1903 | RB_INIT(&xconf->iface_tree); |
7989cdba | 1904 | RB_INIT(&xconf->tnbr_tree); |
76c4abd1 | 1905 | RB_INIT(&xconf->nbrp_tree); |
90d7e7bd | 1906 | RB_INIT(&xconf->l2vpn_tree); |
8429abe0 RW |
1907 | |
1908 | return (xconf); | |
1909 | } | |
1910 | ||
1911 | void | |
1912 | config_clear(struct ldpd_conf *conf) | |
1913 | { | |
1914 | struct ldpd_conf *xconf; | |
1915 | ||
1916 | /* | |
1917 | * Merge current config with an empty config, this will deactivate | |
1918 | * and deallocate all the interfaces, pseudowires and so on. Before | |
1919 | * merging, copy the router-id and other variables to avoid some | |
1920 | * unnecessary operations, like trying to reset the neighborships. | |
1921 | */ | |
1922 | xconf = config_new_empty(); | |
1923 | xconf->ipv4 = conf->ipv4; | |
1924 | xconf->ipv6 = conf->ipv6; | |
1925 | xconf->rtr_id = conf->rtr_id; | |
1926 | xconf->trans_pref = conf->trans_pref; | |
1927 | xconf->flags = conf->flags; | |
1928 | merge_config(conf, xconf); | |
4af8997d RW |
1929 | if (ldpd_process == PROC_MAIN) |
1930 | QOBJ_UNREG (conf); | |
8429abe0 RW |
1931 | free(conf); |
1932 | } |