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Commit | Line | Data |
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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" |
1e404099 | 45 | #include "lib_errors.h" |
eac6e3f0 RW |
46 | |
47 | static void ldpd_shutdown(void); | |
274f5abf | 48 | static pid_t start_child(enum ldpd_process, char *, int, int); |
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 *); | |
56b8a8d2 | 56 | static void ldp_config_normalize(struct ldpd_conf *); |
e4a82008 | 57 | static void ldp_config_reset(struct ldpd_conf *); |
56b8a8d2 RW |
58 | static void ldp_config_reset_main(struct ldpd_conf *); |
59 | static void ldp_config_reset_af(struct ldpd_conf *, int); | |
1d75a89d | 60 | static void ldp_config_reset_l2vpns(struct ldpd_conf *); |
8429abe0 RW |
61 | static void merge_global(struct ldpd_conf *, struct ldpd_conf *); |
62 | static void merge_af(int, struct ldpd_af_conf *, | |
63 | struct ldpd_af_conf *); | |
56b8a8d2 | 64 | static void merge_ifaces(struct ldpd_conf *, struct ldpd_conf *); |
8429abe0 | 65 | static void merge_iface_af(struct iface_af *, struct iface_af *); |
56b8a8d2 RW |
66 | static void merge_tnbrs(struct ldpd_conf *, struct ldpd_conf *); |
67 | static void merge_nbrps(struct ldpd_conf *, struct ldpd_conf *); | |
68 | static void merge_l2vpns(struct ldpd_conf *, struct ldpd_conf *); | |
8429abe0 | 69 | static void merge_l2vpn(struct ldpd_conf *, struct l2vpn *, |
56b8a8d2 | 70 | struct l2vpn *); |
8429abe0 | 71 | |
4af8997d RW |
72 | DEFINE_QOBJ_TYPE(iface) |
73 | DEFINE_QOBJ_TYPE(tnbr) | |
74 | DEFINE_QOBJ_TYPE(nbr_params) | |
75 | DEFINE_QOBJ_TYPE(l2vpn_if) | |
76 | DEFINE_QOBJ_TYPE(l2vpn_pw) | |
77 | DEFINE_QOBJ_TYPE(l2vpn) | |
78 | DEFINE_QOBJ_TYPE(ldpd_conf) | |
79 | ||
8429abe0 | 80 | struct ldpd_global global; |
274f5abf | 81 | struct ldpd_init init; |
56b8a8d2 | 82 | struct ldpd_conf *ldpd_conf, *vty_conf; |
8429abe0 | 83 | |
28e8294c RW |
84 | static struct imsgev *iev_ldpe, *iev_ldpe_sync; |
85 | static struct imsgev *iev_lde, *iev_lde_sync; | |
8429abe0 RW |
86 | static pid_t ldpe_pid; |
87 | static pid_t lde_pid; | |
88 | ||
54ca644b RK |
89 | enum ldpd_process ldpd_process; |
90 | ||
eac6e3f0 RW |
91 | #define LDP_DEFAULT_CONFIG "ldpd.conf" |
92 | #define LDP_VTY_PORT 2612 | |
93 | ||
94 | /* Master of threads. */ | |
95 | struct thread_master *master; | |
96 | ||
dbce3582 RW |
97 | static struct frr_daemon_info ldpd_di; |
98 | ||
eac6e3f0 RW |
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 | 120 | /* CTL Socket path */ |
0d675e49 | 121 | char ctl_sock_path[MAXPATHLEN]; |
372b8bd3 | 122 | |
eac6e3f0 | 123 | /* LDPd options. */ |
372b8bd3 | 124 | #define OPTION_CTLSOCK 1001 |
2b64873d | 125 | static const struct option longopts[] = |
eac6e3f0 | 126 | { |
372b8bd3 | 127 | { "ctl_socket", required_argument, NULL, OPTION_CTLSOCK}, |
fea12efb | 128 | { "instance", required_argument, NULL, 'n'}, |
eac6e3f0 RW |
129 | { 0 } |
130 | }; | |
131 | ||
eac6e3f0 RW |
132 | /* SIGHUP handler. */ |
133 | static void | |
134 | sighup(void) | |
135 | { | |
136 | log_info("SIGHUP received"); | |
dbce3582 | 137 | |
dbce3582 | 138 | /* |
e4a82008 RW |
139 | * Do a full configuration reload. In other words, reset vty_conf |
140 | * and build a new configuartion from scratch. | |
dbce3582 | 141 | */ |
e4a82008 | 142 | ldp_config_reset(vty_conf); |
1c2facd1 | 143 | vty_read_config(NULL, ldpd_di.config_file, config_default); |
e4a82008 | 144 | ldp_config_apply(NULL, vty_conf); |
eac6e3f0 RW |
145 | } |
146 | ||
147 | /* SIGINT / SIGTERM handler. */ | |
148 | static void | |
149 | sigint(void) | |
8429abe0 | 150 | { |
eac6e3f0 RW |
151 | log_info("SIGINT received"); |
152 | ldpd_shutdown(); | |
153 | } | |
8429abe0 | 154 | |
eac6e3f0 RW |
155 | /* SIGUSR1 handler. */ |
156 | static void | |
157 | sigusr1(void) | |
158 | { | |
dd8376fe | 159 | zlog_rotate(); |
8429abe0 RW |
160 | } |
161 | ||
eac6e3f0 RW |
162 | static struct quagga_signal_t ldp_signals[] = |
163 | { | |
164 | { | |
165 | .signal = SIGHUP, | |
166 | .handler = &sighup, | |
167 | }, | |
168 | { | |
169 | .signal = SIGINT, | |
170 | .handler = &sigint, | |
171 | }, | |
172 | { | |
173 | .signal = SIGTERM, | |
174 | .handler = &sigint, | |
175 | }, | |
176 | { | |
177 | .signal = SIGUSR1, | |
178 | .handler = &sigusr1, | |
179 | } | |
180 | }; | |
181 | ||
0d8c7a26 | 182 | static const struct frr_yang_module_info *const ldpd_yang_modules[] = { |
fb7f5aa8 | 183 | &frr_filter_info, |
6fd8972a | 184 | &frr_vrf_info, |
8fcdd0d6 RW |
185 | }; |
186 | ||
4f04a76b DL |
187 | FRR_DAEMON_INFO(ldpd, LDP, |
188 | .vty_port = LDP_VTY_PORT, | |
189 | ||
190 | .proghelp = "Implementation of the LDP protocol.", | |
191 | ||
192 | .signals = ldp_signals, | |
193 | .n_signals = array_size(ldp_signals), | |
194 | ||
195 | .privs = &ldpd_privs, | |
8fcdd0d6 RW |
196 | |
197 | .yang_modules = ldpd_yang_modules, | |
198 | .n_yang_modules = array_size(ldpd_yang_modules), | |
4f04a76b DL |
199 | ) |
200 | ||
9124048d DS |
201 | static int ldp_config_fork_apply(struct thread *t) |
202 | { | |
203 | /* | |
204 | * So the frr_config_fork() function schedules | |
205 | * the read of the vty config( if there is a | |
206 | * non-integrated config ) to be after the | |
207 | * end of startup and we are starting the | |
208 | * main process loop. We need to schedule | |
209 | * the application of this if necessary | |
210 | * after the read in of the config. | |
211 | */ | |
212 | ldp_config_apply(NULL, vty_conf); | |
213 | ||
214 | return 0; | |
215 | } | |
216 | ||
8429abe0 RW |
217 | int |
218 | main(int argc, char *argv[]) | |
219 | { | |
8429abe0 | 220 | char *saved_argv0; |
eac6e3f0 | 221 | int lflag = 0, eflag = 0; |
28e8294c RW |
222 | int pipe_parent2ldpe[2], pipe_parent2ldpe_sync[2]; |
223 | int pipe_parent2lde[2], pipe_parent2lde_sync[2]; | |
372b8bd3 | 224 | char *ctl_sock_name; |
9124048d | 225 | struct thread *thread = NULL; |
0d675e49 DS |
226 | bool ctl_sock_used = false; |
227 | ||
228 | snprintf(ctl_sock_path, sizeof(ctl_sock_path), LDPD_SOCKET, | |
229 | "", ""); | |
8429abe0 | 230 | |
8429abe0 | 231 | ldpd_process = PROC_MAIN; |
fa68f9da | 232 | log_procname = log_procnames[ldpd_process]; |
8429abe0 | 233 | |
8429abe0 RW |
234 | saved_argv0 = argv[0]; |
235 | if (saved_argv0 == NULL) | |
eac6e3f0 | 236 | saved_argv0 = (char *)"ldpd"; |
8429abe0 | 237 | |
4f04a76b | 238 | frr_preinit(&ldpd_di, argc, argv); |
fea12efb | 239 | frr_opt_add("LEn:", longopts, |
240 | " --ctl_socket Override ctl socket path\n" | |
7991dc32 | 241 | " -n, --instance Instance id\n"); |
4f04a76b | 242 | |
eac6e3f0 RW |
243 | while (1) { |
244 | int opt; | |
245 | ||
4f04a76b | 246 | opt = frr_getopt(argc, argv, NULL); |
eac6e3f0 RW |
247 | |
248 | if (opt == EOF) | |
8429abe0 | 249 | break; |
eac6e3f0 RW |
250 | |
251 | switch (opt) { | |
252 | case 0: | |
253 | break; | |
372b8bd3 | 254 | case OPTION_CTLSOCK: |
0d675e49 | 255 | ctl_sock_used = true; |
372b8bd3 RW |
256 | ctl_sock_name = strrchr(LDPD_SOCKET, '/'); |
257 | if (ctl_sock_name) | |
258 | /* skip '/' */ | |
259 | ctl_sock_name++; | |
260 | else | |
261 | /* | |
262 | * LDPD_SOCKET configured as relative path | |
263 | * during config? Should really never happen for | |
264 | * sensible config | |
265 | */ | |
266 | ctl_sock_name = (char *)LDPD_SOCKET; | |
274f5abf | 267 | strlcpy(ctl_sock_path, optarg, sizeof(ctl_sock_path)); |
372b8bd3 RW |
268 | strlcat(ctl_sock_path, "/", sizeof(ctl_sock_path)); |
269 | strlcat(ctl_sock_path, ctl_sock_name, | |
270 | sizeof(ctl_sock_path)); | |
271 | break; | |
fea12efb | 272 | case 'n': |
274f5abf RW |
273 | init.instance = atoi(optarg); |
274 | if (init.instance < 1) | |
fea12efb | 275 | exit(0); |
276 | break; | |
8429abe0 RW |
277 | case 'L': |
278 | lflag = 1; | |
279 | break; | |
280 | case 'E': | |
281 | eflag = 1; | |
282 | break; | |
283 | default: | |
4f04a76b | 284 | frr_help_exit(1); |
eac6e3f0 | 285 | break; |
8429abe0 RW |
286 | } |
287 | } | |
288 | ||
0d675e49 DS |
289 | if (ldpd_di.pathspace && !ctl_sock_used) |
290 | snprintf(ctl_sock_path, sizeof(ctl_sock_path), LDPD_SOCKET, | |
291 | "/", ldpd_di.pathspace); | |
292 | ||
274f5abf RW |
293 | strlcpy(init.user, ldpd_privs.user, sizeof(init.user)); |
294 | strlcpy(init.group, ldpd_privs.group, sizeof(init.group)); | |
295 | strlcpy(init.ctl_sock_path, ctl_sock_path, sizeof(init.ctl_sock_path)); | |
689f5a8c | 296 | strlcpy(init.zclient_serv_path, frr_zclientpath, |
274f5abf | 297 | sizeof(init.zclient_serv_path)); |
4f04a76b | 298 | |
8429abe0 | 299 | argc -= optind; |
8429abe0 | 300 | if (argc > 0 || (lflag && eflag)) |
4f04a76b | 301 | frr_help_exit(1); |
8429abe0 | 302 | |
eac6e3f0 RW |
303 | /* check for root privileges */ |
304 | if (geteuid() != 0) { | |
305 | errno = EPERM; | |
4f04a76b | 306 | perror(ldpd_di.progname); |
8429abe0 RW |
307 | exit(1); |
308 | } | |
309 | ||
0bdeb5e5 DL |
310 | if (lflag || eflag) { |
311 | struct zprivs_ids_t ids; | |
312 | ||
313 | zprivs_preinit(&ldpd_privs); | |
314 | zprivs_get_ids(&ids); | |
315 | ||
316 | zlog_init(ldpd_di.progname, "LDP", 0, | |
317 | ids.uid_normal, ids.gid_normal); | |
318 | } | |
eac6e3f0 | 319 | if (lflag) |
274f5abf | 320 | lde(); |
eac6e3f0 | 321 | else if (eflag) |
274f5abf | 322 | ldpe(); |
8429abe0 | 323 | |
eac6e3f0 | 324 | if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe_parent2ldpe) == -1) |
8429abe0 | 325 | fatal("socketpair"); |
28e8294c RW |
326 | if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, |
327 | pipe_parent2ldpe_sync) == -1) | |
328 | fatal("socketpair"); | |
eac6e3f0 | 329 | if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe_parent2lde) == -1) |
8429abe0 | 330 | fatal("socketpair"); |
28e8294c RW |
331 | if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, |
332 | pipe_parent2lde_sync) == -1) | |
333 | fatal("socketpair"); | |
eac6e3f0 RW |
334 | sock_set_nonblock(pipe_parent2ldpe[0]); |
335 | sock_set_cloexec(pipe_parent2ldpe[0]); | |
336 | sock_set_nonblock(pipe_parent2ldpe[1]); | |
337 | sock_set_cloexec(pipe_parent2ldpe[1]); | |
28e8294c RW |
338 | sock_set_nonblock(pipe_parent2ldpe_sync[0]); |
339 | sock_set_cloexec(pipe_parent2ldpe_sync[0]); | |
340 | sock_set_cloexec(pipe_parent2ldpe_sync[1]); | |
eac6e3f0 RW |
341 | sock_set_nonblock(pipe_parent2lde[0]); |
342 | sock_set_cloexec(pipe_parent2lde[0]); | |
343 | sock_set_nonblock(pipe_parent2lde[1]); | |
344 | sock_set_cloexec(pipe_parent2lde[1]); | |
28e8294c RW |
345 | sock_set_nonblock(pipe_parent2lde_sync[0]); |
346 | sock_set_cloexec(pipe_parent2lde_sync[0]); | |
347 | sock_set_cloexec(pipe_parent2lde_sync[1]); | |
8429abe0 RW |
348 | |
349 | /* start children */ | |
350 | lde_pid = start_child(PROC_LDE_ENGINE, saved_argv0, | |
274f5abf | 351 | pipe_parent2lde[1], pipe_parent2lde_sync[1]); |
8429abe0 | 352 | ldpe_pid = start_child(PROC_LDP_ENGINE, saved_argv0, |
274f5abf | 353 | pipe_parent2ldpe[1], pipe_parent2ldpe_sync[1]); |
8429abe0 | 354 | |
16156c10 | 355 | master = frr_init(); |
83139e57 | 356 | |
ecbc5a37 | 357 | vrf_init(NULL, NULL, NULL, NULL, NULL); |
83139e57 RW |
358 | access_list_init(); |
359 | ldp_vty_init(); | |
eac6e3f0 | 360 | ldp_zebra_init(master); |
8429abe0 | 361 | |
56b8a8d2 | 362 | /* |
e4a82008 RW |
363 | * Create base configuration with sane defaults. All configuration |
364 | * requests (e.g. CLI) act on vty_conf and then call ldp_config_apply() | |
365 | * to merge the changes into ldpd_conf, which contains the actual | |
366 | * running configuration. | |
56b8a8d2 | 367 | */ |
e4a82008 | 368 | ldpd_conf = config_new_empty(); |
1d75a89d | 369 | vty_conf = config_new_empty(); |
1d75a89d | 370 | QOBJ_REG(vty_conf, ldpd_conf); |
56b8a8d2 RW |
371 | |
372 | /* read configuration file and daemonize */ | |
83139e57 RW |
373 | frr_config_fork(); |
374 | ||
e4a82008 | 375 | /* apply configuration */ |
9124048d | 376 | thread_add_event(master, ldp_config_fork_apply, NULL, 0, &thread); |
e4a82008 | 377 | |
8429abe0 | 378 | /* setup pipes to children */ |
28e8294c RW |
379 | if ((iev_ldpe = calloc(1, sizeof(struct imsgev))) == NULL || |
380 | (iev_ldpe_sync = calloc(1, sizeof(struct imsgev))) == NULL || | |
381 | (iev_lde = calloc(1, sizeof(struct imsgev))) == NULL || | |
382 | (iev_lde_sync = calloc(1, sizeof(struct imsgev))) == NULL) | |
8429abe0 RW |
383 | fatal(NULL); |
384 | imsg_init(&iev_ldpe->ibuf, pipe_parent2ldpe[0]); | |
eac6e3f0 | 385 | iev_ldpe->handler_read = main_dispatch_ldpe; |
66e78ae6 QY |
386 | iev_ldpe->ev_read = NULL; |
387 | thread_add_read(master, iev_ldpe->handler_read, iev_ldpe, iev_ldpe->ibuf.fd, | |
388 | &iev_ldpe->ev_read); | |
eac6e3f0 | 389 | iev_ldpe->handler_write = ldp_write_handler; |
28e8294c RW |
390 | |
391 | imsg_init(&iev_ldpe_sync->ibuf, pipe_parent2ldpe_sync[0]); | |
392 | iev_ldpe_sync->handler_read = main_dispatch_ldpe; | |
66e78ae6 QY |
393 | iev_ldpe_sync->ev_read = NULL; |
394 | thread_add_read(master, iev_ldpe_sync->handler_read, iev_ldpe_sync, iev_ldpe_sync->ibuf.fd, | |
395 | &iev_ldpe_sync->ev_read); | |
28e8294c | 396 | iev_ldpe_sync->handler_write = ldp_write_handler; |
8429abe0 | 397 | |
eac6e3f0 RW |
398 | imsg_init(&iev_lde->ibuf, pipe_parent2lde[0]); |
399 | iev_lde->handler_read = main_dispatch_lde; | |
66e78ae6 QY |
400 | iev_lde->ev_read = NULL; |
401 | thread_add_read(master, iev_lde->handler_read, iev_lde, iev_lde->ibuf.fd, | |
402 | &iev_lde->ev_read); | |
eac6e3f0 | 403 | iev_lde->handler_write = ldp_write_handler; |
28e8294c RW |
404 | |
405 | imsg_init(&iev_lde_sync->ibuf, pipe_parent2lde_sync[0]); | |
406 | iev_lde_sync->handler_read = main_dispatch_lde; | |
66e78ae6 QY |
407 | iev_lde_sync->ev_read = NULL; |
408 | thread_add_read(master, iev_lde_sync->handler_read, iev_lde_sync, iev_lde_sync->ibuf.fd, | |
409 | &iev_lde_sync->ev_read); | |
28e8294c | 410 | iev_lde_sync->handler_write = ldp_write_handler; |
8429abe0 RW |
411 | |
412 | if (main_imsg_send_ipc_sockets(&iev_ldpe->ibuf, &iev_lde->ibuf)) | |
413 | fatal("could not establish imsg links"); | |
eac6e3f0 RW |
414 | main_imsg_compose_both(IMSG_DEBUG_UPDATE, &ldp_debug, |
415 | sizeof(ldp_debug)); | |
08e4b244 | 416 | main_imsg_compose_both(IMSG_INIT, &init, sizeof(init)); |
8429abe0 RW |
417 | main_imsg_send_config(ldpd_conf); |
418 | ||
8429abe0 RW |
419 | if (ldpd_conf->ipv4.flags & F_LDPD_AF_ENABLED) |
420 | main_imsg_send_net_sockets(AF_INET); | |
421 | if (ldpd_conf->ipv6.flags & F_LDPD_AF_ENABLED) | |
422 | main_imsg_send_net_sockets(AF_INET6); | |
423 | ||
16077f2f | 424 | frr_run(master); |
8429abe0 | 425 | |
8429abe0 RW |
426 | /* NOTREACHED */ |
427 | return (0); | |
428 | } | |
429 | ||
eac6e3f0 | 430 | static void |
8429abe0 RW |
431 | ldpd_shutdown(void) |
432 | { | |
433 | pid_t pid; | |
434 | int status; | |
435 | ||
03951374 DL |
436 | frr_early_fini(); |
437 | ||
8429abe0 RW |
438 | /* close pipes */ |
439 | msgbuf_clear(&iev_ldpe->ibuf.w); | |
440 | close(iev_ldpe->ibuf.fd); | |
441 | msgbuf_clear(&iev_lde->ibuf.w); | |
442 | close(iev_lde->ibuf.fd); | |
443 | ||
8429abe0 | 444 | config_clear(ldpd_conf); |
1d75a89d | 445 | |
e4a82008 | 446 | ldp_config_reset(vty_conf); |
1d75a89d RW |
447 | QOBJ_UNREG(vty_conf); |
448 | free(vty_conf); | |
8429abe0 RW |
449 | |
450 | log_debug("waiting for children to terminate"); | |
0e8d7233 | 451 | |
452 | while (true) { | |
453 | /* Wait for child process. */ | |
8429abe0 RW |
454 | pid = wait(&status); |
455 | if (pid == -1) { | |
0e8d7233 | 456 | /* We got interrupted, try again. */ |
457 | if (errno == EINTR) | |
458 | continue; | |
459 | /* No more processes were found. */ | |
a0c49f50 | 460 | if (errno == ECHILD) |
0e8d7233 | 461 | break; |
462 | ||
463 | /* Unhandled errno condition. */ | |
464 | fatal("wait"); | |
465 | /* UNREACHABLE */ | |
466 | } | |
467 | ||
468 | /* We found something, lets announce it. */ | |
469 | if (WIFSIGNALED(status)) | |
8429abe0 | 470 | log_warnx("%s terminated; signal %d", |
0e8d7233 | 471 | (pid == lde_pid ? "label decision engine" |
472 | : "ldp engine"), | |
473 | WTERMSIG(status)); | |
474 | ||
475 | /* Repeat until there are no more child processes. */ | |
476 | } | |
8429abe0 RW |
477 | |
478 | free(iev_ldpe); | |
479 | free(iev_lde); | |
480 | ||
481 | log_info("terminating"); | |
64dffe25 RW |
482 | |
483 | vrf_terminate(); | |
45a8eba9 | 484 | access_list_reset(); |
64dffe25 | 485 | ldp_zebra_destroy(); |
64dffe25 | 486 | |
03951374 | 487 | frr_fini(); |
8429abe0 RW |
488 | exit(0); |
489 | } | |
490 | ||
491 | static pid_t | |
274f5abf | 492 | start_child(enum ldpd_process p, char *argv0, int fd_async, int fd_sync) |
8429abe0 | 493 | { |
0bdeb5e5 | 494 | char *argv[7]; |
547322cb | 495 | int argc = 0, nullfd; |
8429abe0 RW |
496 | pid_t pid; |
497 | ||
b12a63f1 MS |
498 | pid = fork(); |
499 | switch (pid) { | |
8429abe0 RW |
500 | case -1: |
501 | fatal("cannot fork"); | |
502 | case 0: | |
503 | break; | |
504 | default: | |
28e8294c RW |
505 | close(fd_async); |
506 | close(fd_sync); | |
8429abe0 RW |
507 | return (pid); |
508 | } | |
509 | ||
547322cb | 510 | nullfd = open("/dev/null", O_RDONLY | O_NOCTTY); |
993bab89 | 511 | if (nullfd == -1) { |
450971aa | 512 | flog_err_sys(EC_LIB_SYSTEM_CALL, |
09c866e3 QY |
513 | "%s: failed to open /dev/null: %s", __func__, |
514 | safe_strerror(errno)); | |
993bab89 RW |
515 | } else { |
516 | dup2(nullfd, 0); | |
517 | dup2(nullfd, 1); | |
518 | dup2(nullfd, 2); | |
519 | close(nullfd); | |
520 | } | |
547322cb | 521 | |
28e8294c RW |
522 | if (dup2(fd_async, LDPD_FD_ASYNC) == -1) |
523 | fatal("cannot setup imsg async fd"); | |
524 | if (dup2(fd_sync, LDPD_FD_SYNC) == -1) | |
525 | fatal("cannot setup imsg sync fd"); | |
8429abe0 RW |
526 | |
527 | argv[argc++] = argv0; | |
528 | switch (p) { | |
529 | case PROC_MAIN: | |
530 | fatalx("Can not start main process"); | |
531 | case PROC_LDE_ENGINE: | |
eac6e3f0 | 532 | argv[argc++] = (char *)"-L"; |
8429abe0 RW |
533 | break; |
534 | case PROC_LDP_ENGINE: | |
eac6e3f0 | 535 | argv[argc++] = (char *)"-E"; |
8429abe0 RW |
536 | break; |
537 | } | |
0bdeb5e5 DL |
538 | |
539 | argv[argc++] = (char *)"-u"; | |
540 | argv[argc++] = (char *)ldpd_privs.user; | |
541 | argv[argc++] = (char *)"-g"; | |
542 | argv[argc++] = (char *)ldpd_privs.group; | |
8429abe0 RW |
543 | argv[argc++] = NULL; |
544 | ||
545 | execvp(argv0, argv); | |
546 | fatal("execvp"); | |
547 | } | |
548 | ||
549 | /* imsg handling */ | |
550 | /* ARGSUSED */ | |
eac6e3f0 RW |
551 | static int |
552 | main_dispatch_ldpe(struct thread *thread) | |
8429abe0 | 553 | { |
eac6e3f0 | 554 | struct imsgev *iev = THREAD_ARG(thread); |
8429abe0 RW |
555 | struct imsgbuf *ibuf = &iev->ibuf; |
556 | struct imsg imsg; | |
557 | int af; | |
558 | ssize_t n; | |
eac6e3f0 | 559 | int shut = 0; |
8429abe0 | 560 | |
eac6e3f0 RW |
561 | iev->ev_read = NULL; |
562 | ||
563 | if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN) | |
564 | fatal("imsg_read error"); | |
565 | if (n == 0) /* connection closed */ | |
566 | shut = 1; | |
8429abe0 RW |
567 | |
568 | for (;;) { | |
569 | if ((n = imsg_get(ibuf, &imsg)) == -1) | |
570 | fatal("imsg_get"); | |
571 | ||
572 | if (n == 0) | |
573 | break; | |
574 | ||
575 | switch (imsg.hdr.type) { | |
eac6e3f0 RW |
576 | case IMSG_LOG: |
577 | logit(imsg.hdr.pid, "%s", (const char *)imsg.data); | |
578 | break; | |
8429abe0 RW |
579 | case IMSG_REQUEST_SOCKETS: |
580 | af = imsg.hdr.pid; | |
581 | main_imsg_send_net_sockets(af); | |
582 | break; | |
45a8eba9 RW |
583 | case IMSG_ACL_CHECK: |
584 | if (imsg.hdr.len != IMSG_HEADER_SIZE + | |
585 | sizeof(struct acl_check)) | |
586 | fatalx("IMSG_ACL_CHECK imsg with wrong len"); | |
587 | ldp_acl_reply(iev, (struct acl_check *)imsg.data); | |
588 | break; | |
e1894ff7 KS |
589 | case IMSG_LDP_SYNC_IF_STATE_UPDATE: |
590 | if (imsg.hdr.len != IMSG_HEADER_SIZE + | |
591 | sizeof(struct ldp_igp_sync_if_state)) | |
592 | fatalx("IMSG_LDP_SYNC_IF_STATE_UPDATE imsg with wrong len"); | |
593 | ||
594 | ldp_sync_zebra_send_state_update((struct ldp_igp_sync_if_state *)imsg.data); | |
595 | break; | |
8429abe0 RW |
596 | default: |
597 | log_debug("%s: error handling imsg %d", __func__, | |
598 | imsg.hdr.type); | |
599 | break; | |
600 | } | |
601 | imsg_free(&imsg); | |
602 | } | |
603 | if (!shut) | |
604 | imsg_event_add(iev); | |
605 | else { | |
eac6e3f0 | 606 | /* this pipe is dead, so remove the event handlers and exit */ |
50478845 MS |
607 | thread_cancel(&iev->ev_read); |
608 | thread_cancel(&iev->ev_write); | |
eac6e3f0 RW |
609 | ldpe_pid = 0; |
610 | if (lde_pid == 0) | |
611 | ldpd_shutdown(); | |
612 | else | |
613 | kill(lde_pid, SIGTERM); | |
8429abe0 | 614 | } |
eac6e3f0 RW |
615 | |
616 | return (0); | |
8429abe0 RW |
617 | } |
618 | ||
619 | /* ARGSUSED */ | |
eac6e3f0 RW |
620 | static int |
621 | main_dispatch_lde(struct thread *thread) | |
8429abe0 | 622 | { |
eac6e3f0 | 623 | struct imsgev *iev = THREAD_ARG(thread); |
8429abe0 RW |
624 | struct imsgbuf *ibuf = &iev->ibuf; |
625 | struct imsg imsg; | |
626 | ssize_t n; | |
627 | int shut = 0; | |
077d336a | 628 | struct zapi_rlfa_response *rlfa_labels; |
8429abe0 | 629 | |
eac6e3f0 RW |
630 | iev->ev_read = NULL; |
631 | ||
632 | if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN) | |
633 | fatal("imsg_read error"); | |
634 | if (n == 0) /* connection closed */ | |
635 | shut = 1; | |
8429abe0 RW |
636 | |
637 | for (;;) { | |
638 | if ((n = imsg_get(ibuf, &imsg)) == -1) | |
639 | fatal("imsg_get"); | |
640 | ||
641 | if (n == 0) | |
642 | break; | |
643 | ||
644 | switch (imsg.hdr.type) { | |
eac6e3f0 RW |
645 | case IMSG_LOG: |
646 | logit(imsg.hdr.pid, "%s", (const char *)imsg.data); | |
647 | break; | |
8429abe0 RW |
648 | case IMSG_KLABEL_CHANGE: |
649 | if (imsg.hdr.len - IMSG_HEADER_SIZE != | |
650 | sizeof(struct kroute)) | |
651 | fatalx("invalid size of IMSG_KLABEL_CHANGE"); | |
652 | if (kr_change(imsg.data)) | |
653 | log_warnx("%s: error changing route", __func__); | |
654 | break; | |
655 | case IMSG_KLABEL_DELETE: | |
656 | if (imsg.hdr.len - IMSG_HEADER_SIZE != | |
657 | sizeof(struct kroute)) | |
658 | fatalx("invalid size of IMSG_KLABEL_DELETE"); | |
659 | if (kr_delete(imsg.data)) | |
660 | log_warnx("%s: error deleting route", __func__); | |
661 | break; | |
87b5f1b7 RW |
662 | case IMSG_KPW_ADD: |
663 | case IMSG_KPW_DELETE: | |
664 | case IMSG_KPW_SET: | |
665 | case IMSG_KPW_UNSET: | |
8429abe0 | 666 | if (imsg.hdr.len - IMSG_HEADER_SIZE != |
87b5f1b7 | 667 | sizeof(struct zapi_pw)) |
8429abe0 | 668 | fatalx("invalid size of IMSG_KPWLABEL_CHANGE"); |
87b5f1b7 RW |
669 | |
670 | switch (imsg.hdr.type) { | |
671 | case IMSG_KPW_ADD: | |
672 | if (kmpw_add(imsg.data)) | |
3efd0893 | 673 | log_warnx("%s: error adding pseudowire", __func__); |
87b5f1b7 RW |
674 | break; |
675 | case IMSG_KPW_DELETE: | |
676 | if (kmpw_del(imsg.data)) | |
3efd0893 | 677 | log_warnx("%s: error deleting pseudowire", __func__); |
87b5f1b7 RW |
678 | break; |
679 | case IMSG_KPW_SET: | |
680 | if (kmpw_set(imsg.data)) | |
3efd0893 | 681 | log_warnx("%s: error setting pseudowire", __func__); |
87b5f1b7 RW |
682 | break; |
683 | case IMSG_KPW_UNSET: | |
684 | if (kmpw_unset(imsg.data)) | |
3efd0893 | 685 | log_warnx("%s: error unsetting pseudowire", __func__); |
87b5f1b7 RW |
686 | break; |
687 | } | |
8429abe0 | 688 | break; |
45a8eba9 RW |
689 | case IMSG_ACL_CHECK: |
690 | if (imsg.hdr.len != IMSG_HEADER_SIZE + | |
691 | sizeof(struct acl_check)) | |
692 | fatalx("IMSG_ACL_CHECK imsg with wrong len"); | |
693 | ldp_acl_reply(iev, (struct acl_check *)imsg.data); | |
694 | break; | |
077d336a RW |
695 | case IMSG_RLFA_LABELS: |
696 | if (imsg.hdr.len != IMSG_HEADER_SIZE + | |
697 | sizeof(struct zapi_rlfa_response)) { | |
698 | log_warnx("%s: wrong imsg len", __func__); | |
699 | break; | |
700 | } | |
701 | rlfa_labels = imsg.data; | |
702 | ldp_zebra_send_rlfa_labels(rlfa_labels); | |
703 | break; | |
8429abe0 RW |
704 | default: |
705 | log_debug("%s: error handling imsg %d", __func__, | |
706 | imsg.hdr.type); | |
707 | break; | |
708 | } | |
709 | imsg_free(&imsg); | |
710 | } | |
711 | if (!shut) | |
712 | imsg_event_add(iev); | |
713 | else { | |
eac6e3f0 | 714 | /* this pipe is dead, so remove the event handlers and exit */ |
50478845 MS |
715 | thread_cancel(&iev->ev_read); |
716 | thread_cancel(&iev->ev_write); | |
eac6e3f0 RW |
717 | lde_pid = 0; |
718 | if (ldpe_pid == 0) | |
719 | ldpd_shutdown(); | |
720 | else | |
721 | kill(ldpe_pid, SIGTERM); | |
8429abe0 | 722 | } |
eac6e3f0 RW |
723 | |
724 | return (0); | |
725 | } | |
726 | ||
727 | /* ARGSUSED */ | |
728 | int | |
729 | ldp_write_handler(struct thread *thread) | |
730 | { | |
731 | struct imsgev *iev = THREAD_ARG(thread); | |
732 | struct imsgbuf *ibuf = &iev->ibuf; | |
733 | ssize_t n; | |
734 | ||
735 | iev->ev_write = NULL; | |
736 | ||
737 | if ((n = msgbuf_write(&ibuf->w)) == -1 && errno != EAGAIN) | |
738 | fatal("msgbuf_write"); | |
739 | if (n == 0) { | |
740 | /* this pipe is dead, so remove the event handlers */ | |
50478845 MS |
741 | thread_cancel(&iev->ev_read); |
742 | thread_cancel(&iev->ev_write); | |
eac6e3f0 RW |
743 | return (0); |
744 | } | |
745 | ||
746 | imsg_event_add(iev); | |
747 | ||
748 | return (0); | |
8429abe0 RW |
749 | } |
750 | ||
751 | void | |
752 | main_imsg_compose_ldpe(int type, pid_t pid, void *data, uint16_t datalen) | |
753 | { | |
754 | if (iev_ldpe == NULL) | |
755 | return; | |
756 | imsg_compose_event(iev_ldpe, type, 0, pid, -1, data, datalen); | |
757 | } | |
758 | ||
759 | void | |
760 | main_imsg_compose_lde(int type, pid_t pid, void *data, uint16_t datalen) | |
761 | { | |
762 | imsg_compose_event(iev_lde, type, 0, pid, -1, data, datalen); | |
763 | } | |
764 | ||
eac6e3f0 | 765 | int |
8429abe0 RW |
766 | main_imsg_compose_both(enum imsg_type type, void *buf, uint16_t len) |
767 | { | |
eac6e3f0 RW |
768 | if (iev_ldpe == NULL || iev_lde == NULL) |
769 | return (0); | |
8429abe0 RW |
770 | if (imsg_compose_event(iev_ldpe, type, 0, 0, -1, buf, len) == -1) |
771 | return (-1); | |
772 | if (imsg_compose_event(iev_lde, type, 0, 0, -1, buf, len) == -1) | |
773 | return (-1); | |
774 | return (0); | |
775 | } | |
776 | ||
777 | void | |
778 | imsg_event_add(struct imsgev *iev) | |
779 | { | |
28e8294c | 780 | if (iev->handler_read) |
ffa2c898 QY |
781 | thread_add_read(master, iev->handler_read, iev, iev->ibuf.fd, |
782 | &iev->ev_read); | |
8429abe0 | 783 | |
28e8294c | 784 | if (iev->handler_write && iev->ibuf.w.queued) |
ffa2c898 QY |
785 | thread_add_write(master, iev->handler_write, iev, |
786 | iev->ibuf.fd, &iev->ev_write); | |
8429abe0 RW |
787 | } |
788 | ||
789 | int | |
790 | imsg_compose_event(struct imsgev *iev, uint16_t type, uint32_t peerid, | |
791 | pid_t pid, int fd, void *data, uint16_t datalen) | |
792 | { | |
793 | int ret; | |
794 | ||
795 | if ((ret = imsg_compose(&iev->ibuf, type, peerid, | |
796 | pid, fd, data, datalen)) != -1) | |
797 | imsg_event_add(iev); | |
798 | return (ret); | |
799 | } | |
800 | ||
801 | void | |
802 | evbuf_enqueue(struct evbuf *eb, struct ibuf *buf) | |
803 | { | |
804 | ibuf_close(&eb->wbuf, buf); | |
805 | evbuf_event_add(eb); | |
806 | } | |
807 | ||
808 | void | |
809 | evbuf_event_add(struct evbuf *eb) | |
810 | { | |
811 | if (eb->wbuf.queued) | |
ffa2c898 QY |
812 | thread_add_write(master, eb->handler, eb->arg, eb->wbuf.fd, |
813 | &eb->ev); | |
8429abe0 RW |
814 | } |
815 | ||
816 | void | |
eac6e3f0 | 817 | evbuf_init(struct evbuf *eb, int fd, int (*handler)(struct thread *), |
8429abe0 RW |
818 | void *arg) |
819 | { | |
820 | msgbuf_init(&eb->wbuf); | |
821 | eb->wbuf.fd = fd; | |
eac6e3f0 RW |
822 | eb->handler = handler; |
823 | eb->arg = arg; | |
8429abe0 RW |
824 | } |
825 | ||
826 | void | |
827 | evbuf_clear(struct evbuf *eb) | |
828 | { | |
50478845 | 829 | thread_cancel(&eb->ev); |
8429abe0 RW |
830 | msgbuf_clear(&eb->wbuf); |
831 | eb->wbuf.fd = -1; | |
832 | } | |
833 | ||
834 | static int | |
835 | main_imsg_send_ipc_sockets(struct imsgbuf *ldpe_buf, struct imsgbuf *lde_buf) | |
836 | { | |
837 | int pipe_ldpe2lde[2]; | |
838 | ||
eac6e3f0 | 839 | if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe_ldpe2lde) == -1) |
8429abe0 | 840 | return (-1); |
eac6e3f0 RW |
841 | sock_set_nonblock(pipe_ldpe2lde[0]); |
842 | sock_set_nonblock(pipe_ldpe2lde[1]); | |
8429abe0 RW |
843 | |
844 | if (imsg_compose(ldpe_buf, IMSG_SOCKET_IPC, 0, 0, pipe_ldpe2lde[0], | |
845 | NULL, 0) == -1) | |
846 | return (-1); | |
847 | if (imsg_compose(lde_buf, IMSG_SOCKET_IPC, 0, 0, pipe_ldpe2lde[1], | |
848 | NULL, 0) == -1) | |
849 | return (-1); | |
850 | ||
851 | return (0); | |
852 | } | |
853 | ||
854 | static void | |
855 | main_imsg_send_net_sockets(int af) | |
856 | { | |
eac6e3f0 RW |
857 | if (!ldp_addrisset(af, &(ldp_af_conf_get(ldpd_conf, af))->trans_addr)) |
858 | return; | |
859 | ||
8429abe0 RW |
860 | main_imsg_send_net_socket(af, LDP_SOCKET_DISC); |
861 | main_imsg_send_net_socket(af, LDP_SOCKET_EDISC); | |
862 | main_imsg_send_net_socket(af, LDP_SOCKET_SESSION); | |
863 | imsg_compose_event(iev_ldpe, IMSG_SETUP_SOCKETS, af, 0, -1, NULL, 0); | |
864 | } | |
865 | ||
866 | static void | |
867 | main_imsg_send_net_socket(int af, enum socket_type type) | |
868 | { | |
869 | int fd; | |
870 | ||
871 | fd = ldp_create_socket(af, type); | |
872 | if (fd == -1) { | |
3efd0893 | 873 | log_warnx("%s: failed to create %s socket for address-family %s", __func__, socket_name(type), af_name(af)); |
8429abe0 RW |
874 | return; |
875 | } | |
876 | ||
877 | imsg_compose_event(iev_ldpe, IMSG_SOCKET_NET, af, 0, fd, &type, | |
878 | sizeof(type)); | |
879 | } | |
880 | ||
45a8eba9 RW |
881 | int |
882 | ldp_acl_request(struct imsgev *iev, char *acl_name, int af, | |
883 | union ldpd_addr *addr, uint8_t prefixlen) | |
884 | { | |
885 | struct imsg imsg; | |
45a8eba9 RW |
886 | struct acl_check acl_check; |
887 | ||
888 | if (acl_name[0] == '\0') | |
889 | return FILTER_PERMIT; | |
890 | ||
891 | /* build request */ | |
892 | strlcpy(acl_check.acl, acl_name, sizeof(acl_check.acl)); | |
893 | acl_check.af = af; | |
894 | acl_check.addr = *addr; | |
895 | acl_check.prefixlen = prefixlen; | |
896 | ||
897 | /* send (blocking) */ | |
898 | imsg_compose_event(iev, IMSG_ACL_CHECK, 0, 0, -1, &acl_check, | |
899 | sizeof(acl_check)); | |
900 | imsg_flush(&iev->ibuf); | |
901 | ||
902 | /* receive (blocking) and parse result */ | |
f67de3ee | 903 | if (imsg_read(&iev->ibuf) == -1) |
45a8eba9 | 904 | fatal("imsg_read error"); |
f67de3ee | 905 | if (imsg_get(&iev->ibuf, &imsg) == -1) |
45a8eba9 RW |
906 | fatal("imsg_get"); |
907 | if (imsg.hdr.type != IMSG_ACL_CHECK || | |
908 | imsg.hdr.len != IMSG_HEADER_SIZE + sizeof(int)) | |
909 | fatalx("ldp_acl_request: invalid response"); | |
910 | ||
911 | return (*((int *)imsg.data)); | |
912 | } | |
913 | ||
914 | void | |
915 | ldp_acl_reply(struct imsgev *iev, struct acl_check *acl_check) | |
916 | { | |
917 | struct access_list *alist; | |
918 | struct prefix prefix; | |
919 | int result; | |
920 | ||
921 | alist = access_list_lookup(family2afi(acl_check->af), acl_check->acl); | |
922 | if (alist == NULL) | |
923 | result = FILTER_DENY; | |
924 | else { | |
925 | prefix.family = acl_check->af; | |
926 | switch (prefix.family) { | |
927 | case AF_INET: | |
928 | prefix.u.prefix4 = acl_check->addr.v4; | |
929 | break; | |
930 | case AF_INET6: | |
931 | prefix.u.prefix6 = acl_check->addr.v6; | |
932 | break; | |
933 | default: | |
934 | fatalx("ldp_acl_reply: unknown af"); | |
935 | } | |
936 | prefix.prefixlen = acl_check->prefixlen; | |
937 | result = access_list_apply(alist, &prefix); | |
938 | } | |
939 | ||
940 | imsg_compose_event(iev, IMSG_ACL_CHECK, 0, 0, -1, &result, | |
941 | sizeof(result)); | |
942 | } | |
943 | ||
8429abe0 RW |
944 | struct ldpd_af_conf * |
945 | ldp_af_conf_get(struct ldpd_conf *xconf, int af) | |
946 | { | |
947 | switch (af) { | |
948 | case AF_INET: | |
949 | return (&xconf->ipv4); | |
950 | case AF_INET6: | |
951 | return (&xconf->ipv6); | |
952 | default: | |
953 | fatalx("ldp_af_conf_get: unknown af"); | |
954 | } | |
955 | } | |
956 | ||
957 | struct ldpd_af_global * | |
958 | ldp_af_global_get(struct ldpd_global *xglobal, int af) | |
959 | { | |
960 | switch (af) { | |
961 | case AF_INET: | |
962 | return (&xglobal->ipv4); | |
963 | case AF_INET6: | |
964 | return (&xglobal->ipv6); | |
965 | default: | |
966 | fatalx("ldp_af_global_get: unknown af"); | |
967 | } | |
968 | } | |
969 | ||
970 | int | |
971 | ldp_is_dual_stack(struct ldpd_conf *xconf) | |
972 | { | |
973 | return ((xconf->ipv4.flags & F_LDPD_AF_ENABLED) && | |
974 | (xconf->ipv6.flags & F_LDPD_AF_ENABLED)); | |
975 | } | |
976 | ||
eac6e3f0 RW |
977 | in_addr_t |
978 | ldp_rtr_id_get(struct ldpd_conf *xconf) | |
979 | { | |
980 | if (xconf->rtr_id.s_addr != INADDR_ANY) | |
981 | return (xconf->rtr_id.s_addr); | |
982 | else | |
983 | return (global.rtr_id.s_addr); | |
984 | } | |
985 | ||
8429abe0 RW |
986 | static int |
987 | main_imsg_send_config(struct ldpd_conf *xconf) | |
988 | { | |
989 | struct iface *iface; | |
990 | struct tnbr *tnbr; | |
991 | struct nbr_params *nbrp; | |
992 | struct l2vpn *l2vpn; | |
993 | struct l2vpn_if *lif; | |
994 | struct l2vpn_pw *pw; | |
995 | ||
996 | if (main_imsg_compose_both(IMSG_RECONF_CONF, xconf, | |
997 | sizeof(*xconf)) == -1) | |
998 | return (-1); | |
999 | ||
7d3d7491 | 1000 | RB_FOREACH(iface, iface_head, &xconf->iface_tree) { |
8429abe0 RW |
1001 | if (main_imsg_compose_both(IMSG_RECONF_IFACE, iface, |
1002 | sizeof(*iface)) == -1) | |
1003 | return (-1); | |
1004 | } | |
1005 | ||
7989cdba | 1006 | RB_FOREACH(tnbr, tnbr_head, &xconf->tnbr_tree) { |
8429abe0 RW |
1007 | if (main_imsg_compose_both(IMSG_RECONF_TNBR, tnbr, |
1008 | sizeof(*tnbr)) == -1) | |
1009 | return (-1); | |
1010 | } | |
1011 | ||
76c4abd1 | 1012 | RB_FOREACH(nbrp, nbrp_head, &xconf->nbrp_tree) { |
8429abe0 RW |
1013 | if (main_imsg_compose_both(IMSG_RECONF_NBRP, nbrp, |
1014 | sizeof(*nbrp)) == -1) | |
1015 | return (-1); | |
1016 | } | |
1017 | ||
90d7e7bd | 1018 | RB_FOREACH(l2vpn, l2vpn_head, &xconf->l2vpn_tree) { |
8429abe0 RW |
1019 | if (main_imsg_compose_both(IMSG_RECONF_L2VPN, l2vpn, |
1020 | sizeof(*l2vpn)) == -1) | |
1021 | return (-1); | |
1022 | ||
029c1958 | 1023 | RB_FOREACH(lif, l2vpn_if_head, &l2vpn->if_tree) { |
8429abe0 RW |
1024 | if (main_imsg_compose_both(IMSG_RECONF_L2VPN_IF, lif, |
1025 | sizeof(*lif)) == -1) | |
1026 | return (-1); | |
1027 | } | |
20bacaeb | 1028 | RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_tree) { |
8429abe0 RW |
1029 | if (main_imsg_compose_both(IMSG_RECONF_L2VPN_PW, pw, |
1030 | sizeof(*pw)) == -1) | |
1031 | return (-1); | |
1032 | } | |
20bacaeb | 1033 | RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_inactive_tree) { |
eac6e3f0 RW |
1034 | if (main_imsg_compose_both(IMSG_RECONF_L2VPN_IPW, pw, |
1035 | sizeof(*pw)) == -1) | |
1036 | return (-1); | |
1037 | } | |
8429abe0 RW |
1038 | } |
1039 | ||
1040 | if (main_imsg_compose_both(IMSG_RECONF_END, NULL, 0) == -1) | |
1041 | return (-1); | |
1042 | ||
1043 | return (0); | |
1044 | } | |
1045 | ||
eac6e3f0 | 1046 | int |
e4a82008 | 1047 | ldp_config_apply(struct vty *vty, struct ldpd_conf *xconf) |
8429abe0 | 1048 | { |
e4a82008 RW |
1049 | /* |
1050 | * When reading from a configuration file (startup and sighup), we | |
1051 | * call merge_config() only once after the whole config has been read. | |
1052 | * This is the optimal and least disruptive way to update the running | |
1053 | * configuration. | |
1054 | */ | |
1055 | if (vty && vty->type == VTY_FILE) | |
dbce3582 RW |
1056 | return (0); |
1057 | ||
56b8a8d2 | 1058 | ldp_config_normalize(xconf); |
8429abe0 RW |
1059 | |
1060 | if (main_imsg_send_config(xconf) == -1) | |
1061 | return (-1); | |
1062 | ||
56b8a8d2 | 1063 | merge_config(ldpd_conf, xconf); |
8429abe0 | 1064 | |
56b8a8d2 | 1065 | return (0); |
b67c140b RW |
1066 | } |
1067 | ||
eac6e3f0 | 1068 | static void |
56b8a8d2 | 1069 | ldp_config_normalize(struct ldpd_conf *xconf) |
eac6e3f0 | 1070 | { |
7d0eeac1 RW |
1071 | struct iface *iface, *itmp; |
1072 | struct nbr_params *nbrp, *ntmp; | |
eac6e3f0 | 1073 | struct l2vpn *l2vpn; |
7d0eeac1 | 1074 | struct l2vpn_pw *pw, *ptmp; |
eac6e3f0 RW |
1075 | |
1076 | if (!(xconf->flags & F_LDPD_ENABLED)) | |
56b8a8d2 | 1077 | ldp_config_reset_main(xconf); |
eac6e3f0 RW |
1078 | else { |
1079 | if (!(xconf->ipv4.flags & F_LDPD_AF_ENABLED)) | |
56b8a8d2 | 1080 | ldp_config_reset_af(xconf, AF_INET); |
eac6e3f0 | 1081 | if (!(xconf->ipv6.flags & F_LDPD_AF_ENABLED)) |
56b8a8d2 | 1082 | ldp_config_reset_af(xconf, AF_INET6); |
eac6e3f0 | 1083 | |
7d0eeac1 RW |
1084 | RB_FOREACH_SAFE(iface, iface_head, &xconf->iface_tree, itmp) { |
1085 | if (iface->ipv4.enabled || iface->ipv6.enabled) | |
eac6e3f0 RW |
1086 | continue; |
1087 | ||
1d75a89d | 1088 | QOBJ_UNREG(iface); |
7d0eeac1 RW |
1089 | RB_REMOVE(iface_head, &vty_conf->iface_tree, iface); |
1090 | free(iface); | |
eac6e3f0 | 1091 | } |
7d0eeac1 RW |
1092 | |
1093 | RB_FOREACH_SAFE(nbrp, nbrp_head, &xconf->nbrp_tree, ntmp) { | |
1094 | if (nbrp->flags & (F_NBRP_KEEPALIVE|F_NBRP_GTSM)) | |
1095 | continue; | |
1096 | if (nbrp->auth.method != AUTH_NONE) | |
1097 | continue; | |
1098 | ||
1d75a89d | 1099 | QOBJ_UNREG(nbrp); |
7d0eeac1 RW |
1100 | RB_REMOVE(nbrp_head, &vty_conf->nbrp_tree, nbrp); |
1101 | free(nbrp); | |
1102 | } | |
1103 | } | |
1104 | ||
1105 | RB_FOREACH(l2vpn, l2vpn_head, &xconf->l2vpn_tree) { | |
1106 | RB_FOREACH_SAFE(pw, l2vpn_pw_head, &l2vpn->pw_tree, ptmp) { | |
1107 | if (!(pw->flags & F_PW_STATIC_NBR_ADDR)) { | |
1108 | pw->af = AF_INET; | |
1109 | pw->addr.v4 = pw->lsr_id; | |
1110 | } | |
1111 | ||
1112 | if (pw->lsr_id.s_addr != INADDR_ANY && pw->pwid != 0) | |
eac6e3f0 | 1113 | continue; |
7d0eeac1 RW |
1114 | RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_tree, pw); |
1115 | RB_INSERT(l2vpn_pw_head, &l2vpn->pw_inactive_tree, pw); | |
1116 | } | |
1117 | RB_FOREACH_SAFE(pw, l2vpn_pw_head, &l2vpn->pw_inactive_tree, | |
1118 | ptmp) { | |
1119 | if (!(pw->flags & F_PW_STATIC_NBR_ADDR)) { | |
1120 | pw->af = AF_INET; | |
1121 | pw->addr.v4 = pw->lsr_id; | |
1122 | } | |
eac6e3f0 | 1123 | |
7d0eeac1 RW |
1124 | if (pw->lsr_id.s_addr == INADDR_ANY || pw->pwid == 0) |
1125 | continue; | |
1126 | RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_inactive_tree, pw); | |
1127 | RB_INSERT(l2vpn_pw_head, &l2vpn->pw_tree, pw); | |
eac6e3f0 RW |
1128 | } |
1129 | } | |
1130 | } | |
1131 | ||
e4a82008 RW |
1132 | static void |
1133 | ldp_config_reset(struct ldpd_conf *conf) | |
1134 | { | |
1135 | ldp_config_reset_main(conf); | |
1136 | ldp_config_reset_l2vpns(conf); | |
1137 | } | |
1138 | ||
eac6e3f0 | 1139 | static void |
56b8a8d2 | 1140 | ldp_config_reset_main(struct ldpd_conf *conf) |
eac6e3f0 RW |
1141 | { |
1142 | struct iface *iface; | |
1143 | struct nbr_params *nbrp; | |
1144 | ||
55cd0f61 DS |
1145 | while (!RB_EMPTY(iface_head, &conf->iface_tree)) { |
1146 | iface = RB_ROOT(iface_head, &conf->iface_tree); | |
1147 | ||
1d75a89d | 1148 | QOBJ_UNREG(iface); |
7d3d7491 | 1149 | RB_REMOVE(iface_head, &conf->iface_tree, iface); |
eac6e3f0 RW |
1150 | free(iface); |
1151 | } | |
1152 | ||
55cd0f61 DS |
1153 | while (!RB_EMPTY(nbrp_head, &conf->nbrp_tree)) { |
1154 | nbrp = RB_ROOT(nbrp_head, &conf->nbrp_tree); | |
1155 | ||
1d75a89d | 1156 | QOBJ_UNREG(nbrp); |
76c4abd1 | 1157 | RB_REMOVE(nbrp_head, &conf->nbrp_tree, nbrp); |
eac6e3f0 RW |
1158 | free(nbrp); |
1159 | } | |
1160 | ||
1161 | conf->rtr_id.s_addr = INADDR_ANY; | |
56b8a8d2 RW |
1162 | ldp_config_reset_af(conf, AF_INET); |
1163 | ldp_config_reset_af(conf, AF_INET6); | |
eac6e3f0 RW |
1164 | conf->lhello_holdtime = LINK_DFLT_HOLDTIME; |
1165 | conf->lhello_interval = DEFAULT_HELLO_INTERVAL; | |
1166 | conf->thello_holdtime = TARGETED_DFLT_HOLDTIME; | |
1167 | conf->thello_interval = DEFAULT_HELLO_INTERVAL; | |
e1894ff7 | 1168 | conf->wait_for_sync_interval = DFLT_WAIT_FOR_SYNC; |
eac6e3f0 RW |
1169 | conf->trans_pref = DUAL_STACK_LDPOV6; |
1170 | conf->flags = 0; | |
1171 | } | |
1172 | ||
1173 | static void | |
56b8a8d2 | 1174 | ldp_config_reset_af(struct ldpd_conf *conf, int af) |
eac6e3f0 RW |
1175 | { |
1176 | struct ldpd_af_conf *af_conf; | |
1177 | struct iface *iface; | |
1178 | struct iface_af *ia; | |
1179 | struct tnbr *tnbr, *ttmp; | |
1180 | ||
7d3d7491 | 1181 | RB_FOREACH(iface, iface_head, &conf->iface_tree) { |
eac6e3f0 RW |
1182 | ia = iface_af_get(iface, af); |
1183 | ia->enabled = 0; | |
1184 | } | |
1185 | ||
7989cdba | 1186 | RB_FOREACH_SAFE(tnbr, tnbr_head, &conf->tnbr_tree, ttmp) { |
eac6e3f0 RW |
1187 | if (tnbr->af != af) |
1188 | continue; | |
1189 | ||
1d75a89d | 1190 | QOBJ_UNREG(tnbr); |
7989cdba | 1191 | RB_REMOVE(tnbr_head, &conf->tnbr_tree, tnbr); |
eac6e3f0 RW |
1192 | free(tnbr); |
1193 | } | |
1194 | ||
1195 | af_conf = ldp_af_conf_get(conf, af); | |
1196 | af_conf->keepalive = 180; | |
1197 | af_conf->lhello_holdtime = 0; | |
1198 | af_conf->lhello_interval = 0; | |
1199 | af_conf->thello_holdtime = 0; | |
1200 | af_conf->thello_interval = 0; | |
1201 | memset(&af_conf->trans_addr, 0, sizeof(af_conf->trans_addr)); | |
1202 | af_conf->flags = 0; | |
1203 | } | |
1204 | ||
1d75a89d RW |
1205 | static void |
1206 | ldp_config_reset_l2vpns(struct ldpd_conf *conf) | |
eac6e3f0 | 1207 | { |
1d75a89d RW |
1208 | struct l2vpn *l2vpn; |
1209 | struct l2vpn_if *lif; | |
1210 | struct l2vpn_pw *pw; | |
eac6e3f0 | 1211 | |
55cd0f61 DS |
1212 | while (!RB_EMPTY(l2vpn_head, &conf->l2vpn_tree)) { |
1213 | l2vpn = RB_ROOT(l2vpn_head, &conf->l2vpn_tree); | |
1214 | while (!RB_EMPTY(l2vpn_if_head, &l2vpn->if_tree)) { | |
1215 | lif = RB_ROOT(l2vpn_if_head, &l2vpn->if_tree); | |
1216 | ||
1d75a89d RW |
1217 | QOBJ_UNREG(lif); |
1218 | RB_REMOVE(l2vpn_if_head, &l2vpn->if_tree, lif); | |
1219 | free(lif); | |
eac6e3f0 | 1220 | } |
55cd0f61 DS |
1221 | while (!RB_EMPTY(l2vpn_pw_head, &l2vpn->pw_tree)) { |
1222 | pw = RB_ROOT(l2vpn_pw_head, &l2vpn->pw_tree); | |
1223 | ||
1d75a89d RW |
1224 | QOBJ_UNREG(pw); |
1225 | RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_tree, pw); | |
1226 | free(pw); | |
eac6e3f0 | 1227 | } |
55cd0f61 DS |
1228 | while (!RB_EMPTY(l2vpn_pw_head, &l2vpn->pw_inactive_tree)) { |
1229 | pw = RB_ROOT(l2vpn_pw_head, &l2vpn->pw_inactive_tree); | |
1230 | ||
1d75a89d RW |
1231 | QOBJ_UNREG(pw); |
1232 | RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_inactive_tree, pw); | |
1233 | free(pw); | |
eac6e3f0 | 1234 | } |
1d75a89d RW |
1235 | QOBJ_UNREG(l2vpn); |
1236 | RB_REMOVE(l2vpn_head, &conf->l2vpn_tree, l2vpn); | |
1237 | free(l2vpn); | |
eac6e3f0 | 1238 | } |
eac6e3f0 RW |
1239 | } |
1240 | ||
1241 | void | |
1242 | ldp_clear_config(struct ldpd_conf *xconf) | |
1243 | { | |
1244 | struct iface *iface; | |
1245 | struct tnbr *tnbr; | |
1246 | struct nbr_params *nbrp; | |
1247 | struct l2vpn *l2vpn; | |
1248 | ||
55cd0f61 DS |
1249 | while (!RB_EMPTY(iface_head, &xconf->iface_tree)) { |
1250 | iface = RB_ROOT(iface_head, &xconf->iface_tree); | |
1251 | ||
7d3d7491 | 1252 | RB_REMOVE(iface_head, &xconf->iface_tree, iface); |
eac6e3f0 RW |
1253 | free(iface); |
1254 | } | |
55cd0f61 DS |
1255 | while (!RB_EMPTY(tnbr_head, &xconf->tnbr_tree)) { |
1256 | tnbr = RB_ROOT(tnbr_head, &xconf->tnbr_tree); | |
1257 | ||
7989cdba | 1258 | RB_REMOVE(tnbr_head, &xconf->tnbr_tree, tnbr); |
eac6e3f0 RW |
1259 | free(tnbr); |
1260 | } | |
55cd0f61 DS |
1261 | while (!RB_EMPTY(nbrp_head, &xconf->nbrp_tree)) { |
1262 | nbrp = RB_ROOT(nbrp_head, &xconf->nbrp_tree); | |
1263 | ||
76c4abd1 | 1264 | RB_REMOVE(nbrp_head, &xconf->nbrp_tree, nbrp); |
eac6e3f0 RW |
1265 | free(nbrp); |
1266 | } | |
55cd0f61 DS |
1267 | while (!RB_EMPTY(l2vpn_head, &xconf->l2vpn_tree)) { |
1268 | l2vpn = RB_ROOT(l2vpn_head, &xconf->l2vpn_tree); | |
1269 | ||
90d7e7bd | 1270 | RB_REMOVE(l2vpn_head, &xconf->l2vpn_tree, l2vpn); |
eac6e3f0 RW |
1271 | l2vpn_del(l2vpn); |
1272 | } | |
1273 | ||
1274 | free(xconf); | |
1275 | } | |
1276 | ||
1d75a89d RW |
1277 | #define COPY(a, b) do { \ |
1278 | a = malloc(sizeof(*a)); \ | |
1279 | if (a == NULL) \ | |
1280 | fatal(__func__); \ | |
1281 | *a = *b; \ | |
1282 | } while (0) | |
1283 | ||
56b8a8d2 RW |
1284 | void |
1285 | merge_config(struct ldpd_conf *conf, struct ldpd_conf *xconf) | |
8429abe0 RW |
1286 | { |
1287 | merge_global(conf, xconf); | |
1288 | merge_af(AF_INET, &conf->ipv4, &xconf->ipv4); | |
1289 | merge_af(AF_INET6, &conf->ipv6, &xconf->ipv6); | |
56b8a8d2 RW |
1290 | merge_ifaces(conf, xconf); |
1291 | merge_tnbrs(conf, xconf); | |
1292 | merge_nbrps(conf, xconf); | |
1293 | merge_l2vpns(conf, xconf); | |
8429abe0 RW |
1294 | } |
1295 | ||
1296 | static void | |
1297 | merge_global(struct ldpd_conf *conf, struct ldpd_conf *xconf) | |
1298 | { | |
e1894ff7 KS |
1299 | /* Removing global LDP config requires resetting LDP IGP Sync FSM */ |
1300 | if ((conf->flags & F_LDPD_ENABLED) && | |
1301 | (!(xconf->flags & F_LDPD_ENABLED))) | |
1302 | { | |
1303 | if (ldpd_process == PROC_LDP_ENGINE) | |
1304 | ldp_sync_fsm_reset_all(); | |
1305 | } | |
1306 | ||
8429abe0 RW |
1307 | /* change of router-id requires resetting all neighborships */ |
1308 | if (conf->rtr_id.s_addr != xconf->rtr_id.s_addr) { | |
1309 | if (ldpd_process == PROC_LDP_ENGINE) { | |
45a8eba9 | 1310 | ldpe_reset_nbrs(AF_UNSPEC); |
8429abe0 RW |
1311 | if (conf->rtr_id.s_addr == INADDR_ANY || |
1312 | xconf->rtr_id.s_addr == INADDR_ANY) { | |
1313 | if_update_all(AF_UNSPEC); | |
1314 | tnbr_update_all(AF_UNSPEC); | |
1315 | } | |
1316 | } | |
1317 | conf->rtr_id = xconf->rtr_id; | |
1318 | } | |
1319 | ||
aff1743c KS |
1320 | /* |
1321 | * Configuration of ordered-control or independent-control | |
1322 | * requires resetting all neighborships. | |
1323 | */ | |
1324 | if ((conf->flags & F_LDPD_ORDERED_CONTROL) != | |
1325 | (xconf->flags & F_LDPD_ORDERED_CONTROL)) | |
1326 | ldpe_reset_nbrs(AF_UNSPEC); | |
1327 | ||
eac6e3f0 RW |
1328 | conf->lhello_holdtime = xconf->lhello_holdtime; |
1329 | conf->lhello_interval = xconf->lhello_interval; | |
1330 | conf->thello_holdtime = xconf->thello_holdtime; | |
1331 | conf->thello_interval = xconf->thello_interval; | |
e1894ff7 | 1332 | conf->wait_for_sync_interval = xconf->wait_for_sync_interval; |
eac6e3f0 | 1333 | |
8429abe0 RW |
1334 | if (conf->trans_pref != xconf->trans_pref) { |
1335 | if (ldpd_process == PROC_LDP_ENGINE) | |
1336 | ldpe_reset_ds_nbrs(); | |
1337 | conf->trans_pref = xconf->trans_pref; | |
1338 | } | |
1339 | ||
1340 | if ((conf->flags & F_LDPD_DS_CISCO_INTEROP) != | |
1341 | (xconf->flags & F_LDPD_DS_CISCO_INTEROP)) { | |
1342 | if (ldpd_process == PROC_LDP_ENGINE) | |
1343 | ldpe_reset_ds_nbrs(); | |
1344 | } | |
1345 | ||
1346 | conf->flags = xconf->flags; | |
1347 | } | |
1348 | ||
1349 | static void | |
1350 | merge_af(int af, struct ldpd_af_conf *af_conf, struct ldpd_af_conf *xa) | |
1351 | { | |
45a8eba9 RW |
1352 | int stop_init_backoff = 0; |
1353 | int remove_dynamic_tnbrs = 0; | |
1354 | int change_egress_label = 0; | |
86753560 | 1355 | int change_host_label = 0; |
45a8eba9 RW |
1356 | int reset_nbrs_ipv4 = 0; |
1357 | int reset_nbrs = 0; | |
1358 | int update_sockets = 0; | |
95535717 | 1359 | int change_ldp_disabled = 0; |
45a8eba9 RW |
1360 | |
1361 | /* update timers */ | |
8429abe0 RW |
1362 | if (af_conf->keepalive != xa->keepalive) { |
1363 | af_conf->keepalive = xa->keepalive; | |
45a8eba9 | 1364 | stop_init_backoff = 1; |
8429abe0 | 1365 | } |
eac6e3f0 RW |
1366 | af_conf->lhello_holdtime = xa->lhello_holdtime; |
1367 | af_conf->lhello_interval = xa->lhello_interval; | |
8429abe0 RW |
1368 | af_conf->thello_holdtime = xa->thello_holdtime; |
1369 | af_conf->thello_interval = xa->thello_interval; | |
1370 | ||
1371 | /* update flags */ | |
45a8eba9 | 1372 | if ((af_conf->flags & F_LDPD_AF_THELLO_ACCEPT) && |
8429abe0 | 1373 | !(xa->flags & F_LDPD_AF_THELLO_ACCEPT)) |
45a8eba9 | 1374 | remove_dynamic_tnbrs = 1; |
8429abe0 RW |
1375 | if ((af_conf->flags & F_LDPD_AF_NO_GTSM) != |
1376 | (xa->flags & F_LDPD_AF_NO_GTSM)) { | |
1377 | if (af == AF_INET6) | |
1378 | /* need to set/unset IPV6_MINHOPCOUNT */ | |
1379 | update_sockets = 1; | |
45a8eba9 | 1380 | else |
8429abe0 | 1381 | /* for LDPv4 just resetting the neighbors is enough */ |
45a8eba9 | 1382 | reset_nbrs_ipv4 = 1; |
8429abe0 | 1383 | } |
8429abe0 RW |
1384 | if ((af_conf->flags & F_LDPD_AF_EXPNULL) != |
1385 | (xa->flags & F_LDPD_AF_EXPNULL)) | |
45a8eba9 | 1386 | change_egress_label = 1; |
86753560 | 1387 | |
1388 | /* changing config of host only fec filtering */ | |
1389 | if ((af_conf->flags & F_LDPD_AF_ALLOCHOSTONLY) | |
1390 | != (xa->flags & F_LDPD_AF_ALLOCHOSTONLY)) | |
1391 | change_host_label = 1; | |
1392 | ||
95535717 | 1393 | /* disabling LDP for address family */ |
1394 | if ((af_conf->flags & F_LDPD_AF_ENABLED) && | |
1395 | !(xa->flags & F_LDPD_AF_ENABLED)) | |
1396 | change_ldp_disabled = 1; | |
1397 | ||
8429abe0 RW |
1398 | af_conf->flags = xa->flags; |
1399 | ||
45a8eba9 | 1400 | /* update the transport address */ |
8429abe0 RW |
1401 | if (ldp_addrcmp(af, &af_conf->trans_addr, &xa->trans_addr)) { |
1402 | af_conf->trans_addr = xa->trans_addr; | |
1403 | update_sockets = 1; | |
1404 | } | |
1405 | ||
45a8eba9 | 1406 | /* update ACLs */ |
2d1aa1e8 | 1407 | if (strcmp(af_conf->acl_label_allocate_for, xa->acl_label_allocate_for)) |
86753560 | 1408 | change_host_label = 1; |
1409 | ||
45a8eba9 RW |
1410 | if (strcmp(af_conf->acl_label_advertise_to, |
1411 | xa->acl_label_advertise_to) || | |
1412 | strcmp(af_conf->acl_label_advertise_for, | |
1413 | xa->acl_label_advertise_for) || | |
1414 | strcmp(af_conf->acl_label_accept_from, | |
1415 | xa->acl_label_accept_from) || | |
1416 | strcmp(af_conf->acl_label_accept_for, | |
1417 | xa->acl_label_accept_for)) | |
1418 | reset_nbrs = 1; | |
1419 | if (strcmp(af_conf->acl_thello_accept_from, xa->acl_thello_accept_from)) | |
1420 | remove_dynamic_tnbrs = 1; | |
1421 | if (strcmp(af_conf->acl_label_expnull_for, xa->acl_label_expnull_for)) | |
1422 | change_egress_label = 1; | |
1423 | strlcpy(af_conf->acl_thello_accept_from, xa->acl_thello_accept_from, | |
1424 | sizeof(af_conf->acl_thello_accept_from)); | |
1425 | strlcpy(af_conf->acl_label_allocate_for, xa->acl_label_allocate_for, | |
1426 | sizeof(af_conf->acl_label_allocate_for)); | |
1427 | strlcpy(af_conf->acl_label_advertise_to, xa->acl_label_advertise_to, | |
1428 | sizeof(af_conf->acl_label_advertise_to)); | |
1429 | strlcpy(af_conf->acl_label_advertise_for, xa->acl_label_advertise_for, | |
1430 | sizeof(af_conf->acl_label_advertise_for)); | |
1431 | strlcpy(af_conf->acl_label_accept_from, xa->acl_label_accept_from, | |
1432 | sizeof(af_conf->acl_label_accept_from)); | |
1433 | strlcpy(af_conf->acl_label_accept_for, xa->acl_label_accept_for, | |
1434 | sizeof(af_conf->acl_label_accept_for)); | |
1435 | strlcpy(af_conf->acl_label_expnull_for, xa->acl_label_expnull_for, | |
1436 | sizeof(af_conf->acl_label_expnull_for)); | |
1437 | ||
1438 | /* apply the new configuration */ | |
1439 | switch (ldpd_process) { | |
1440 | case PROC_LDE_ENGINE: | |
1441 | if (change_egress_label) | |
1442 | lde_change_egress_label(af); | |
86753560 | 1443 | if (change_host_label) |
2d1aa1e8 | 1444 | lde_change_allocate_filter(af); |
95535717 | 1445 | if (change_ldp_disabled) |
1446 | lde_route_update_release_all(af); | |
1447 | ||
45a8eba9 RW |
1448 | break; |
1449 | case PROC_LDP_ENGINE: | |
1450 | if (stop_init_backoff) | |
1451 | ldpe_stop_init_backoff(af); | |
1452 | if (remove_dynamic_tnbrs) | |
1453 | ldpe_remove_dynamic_tnbrs(af); | |
1454 | if (reset_nbrs) | |
1455 | ldpe_reset_nbrs(AF_UNSPEC); | |
1456 | else if (reset_nbrs_ipv4) | |
1457 | ldpe_reset_nbrs(AF_INET); | |
1458 | break; | |
1459 | case PROC_MAIN: | |
1460 | if (update_sockets && iev_ldpe) | |
1461 | imsg_compose_event(iev_ldpe, IMSG_CLOSE_SOCKETS, af, | |
1462 | 0, -1, NULL, 0); | |
1463 | break; | |
1464 | } | |
8429abe0 RW |
1465 | } |
1466 | ||
1467 | static void | |
56b8a8d2 | 1468 | merge_ifaces(struct ldpd_conf *conf, struct ldpd_conf *xconf) |
8429abe0 RW |
1469 | { |
1470 | struct iface *iface, *itmp, *xi; | |
1471 | ||
7d3d7491 | 1472 | RB_FOREACH_SAFE(iface, iface_head, &conf->iface_tree, itmp) { |
95535717 | 1473 | /* find deleted interfaces, which occurs when LDP is removed |
1474 | * for all address families | |
1475 | */ | |
f67de3ee | 1476 | if (if_lookup_name(xconf, iface->name) == NULL) { |
4af8997d | 1477 | switch (ldpd_process) { |
4af8997d | 1478 | case PROC_LDP_ENGINE: |
1d75a89d | 1479 | ldpe_if_exit(iface); |
4af8997d | 1480 | break; |
1d75a89d | 1481 | case PROC_LDE_ENGINE: |
95535717 | 1482 | if (iface->ipv4.enabled) |
1483 | lde_route_update_release(iface, | |
1484 | AF_INET); | |
1485 | if (iface->ipv6.enabled) | |
1486 | lde_route_update_release(iface, | |
1487 | AF_INET6); | |
1488 | break; | |
4af8997d | 1489 | case PROC_MAIN: |
4af8997d RW |
1490 | break; |
1491 | } | |
1d75a89d | 1492 | RB_REMOVE(iface_head, &conf->iface_tree, iface); |
8429abe0 RW |
1493 | free(iface); |
1494 | } | |
1495 | } | |
7d3d7491 | 1496 | RB_FOREACH_SAFE(xi, iface_head, &xconf->iface_tree, itmp) { |
8429abe0 | 1497 | /* find new interfaces */ |
eac6e3f0 | 1498 | if ((iface = if_lookup_name(conf, xi->name)) == NULL) { |
1d75a89d RW |
1499 | COPY(iface, xi); |
1500 | RB_INSERT(iface_head, &conf->iface_tree, iface); | |
8429abe0 | 1501 | |
1d75a89d RW |
1502 | switch (ldpd_process) { |
1503 | case PROC_LDP_ENGINE: | |
1504 | ldpe_if_init(iface); | |
1505 | break; | |
1506 | case PROC_LDE_ENGINE: | |
1507 | break; | |
1508 | case PROC_MAIN: | |
4af8997d | 1509 | /* resend addresses to activate new interfaces */ |
1d75a89d RW |
1510 | kif_redistribute(iface->name); |
1511 | break; | |
4af8997d | 1512 | } |
8429abe0 RW |
1513 | continue; |
1514 | } | |
1515 | ||
95535717 | 1516 | /* update labels when adding or removing ldp on an |
1517 | * interface | |
1518 | */ | |
1519 | if (ldpd_process == PROC_LDE_ENGINE) { | |
1520 | /* if we are removing lpd config for an address | |
1521 | * family on an interface then advertise routes | |
1522 | * learned over this interface as if they were | |
1523 | * connected routes | |
1524 | */ | |
1525 | if (iface->ipv4.enabled && !xi->ipv4.enabled) | |
1526 | lde_route_update_release(iface, AF_INET); | |
1527 | if (iface->ipv6.enabled && !xi->ipv6.enabled) | |
1528 | lde_route_update_release(iface, AF_INET6); | |
1529 | ||
1530 | /* if we are adding lpd config for an address | |
1531 | * family on an interface then add proper labels | |
1532 | */ | |
1533 | if (!iface->ipv4.enabled && xi->ipv4.enabled) | |
1534 | lde_route_update(iface, AF_INET); | |
1535 | if (!iface->ipv6.enabled && xi->ipv6.enabled) | |
1536 | lde_route_update(iface, AF_INET6); | |
1537 | } | |
1538 | ||
8429abe0 RW |
1539 | /* update existing interfaces */ |
1540 | merge_iface_af(&iface->ipv4, &xi->ipv4); | |
1541 | merge_iface_af(&iface->ipv6, &xi->ipv6); | |
8429abe0 RW |
1542 | } |
1543 | } | |
1544 | ||
1545 | static void | |
1546 | merge_iface_af(struct iface_af *ia, struct iface_af *xi) | |
1547 | { | |
1548 | if (ia->enabled != xi->enabled) { | |
1549 | ia->enabled = xi->enabled; | |
1550 | if (ldpd_process == PROC_LDP_ENGINE) | |
61cd1100 | 1551 | ldp_if_update(ia->iface, ia->af); |
8429abe0 RW |
1552 | } |
1553 | ia->hello_holdtime = xi->hello_holdtime; | |
1554 | ia->hello_interval = xi->hello_interval; | |
1555 | } | |
1556 | ||
1557 | static void | |
56b8a8d2 | 1558 | merge_tnbrs(struct ldpd_conf *conf, struct ldpd_conf *xconf) |
8429abe0 RW |
1559 | { |
1560 | struct tnbr *tnbr, *ttmp, *xt; | |
1561 | ||
7989cdba | 1562 | RB_FOREACH_SAFE(tnbr, tnbr_head, &conf->tnbr_tree, ttmp) { |
8429abe0 RW |
1563 | if (!(tnbr->flags & F_TNBR_CONFIGURED)) |
1564 | continue; | |
1565 | ||
1566 | /* find deleted tnbrs */ | |
f67de3ee | 1567 | if (tnbr_find(xconf, tnbr->af, &tnbr->addr) == NULL) { |
4af8997d | 1568 | switch (ldpd_process) { |
4af8997d | 1569 | case PROC_LDP_ENGINE: |
8429abe0 | 1570 | tnbr->flags &= ~F_TNBR_CONFIGURED; |
7989cdba | 1571 | tnbr_check(conf, tnbr); |
4af8997d | 1572 | break; |
1d75a89d | 1573 | case PROC_LDE_ENGINE: |
4af8997d | 1574 | case PROC_MAIN: |
7989cdba | 1575 | RB_REMOVE(tnbr_head, &conf->tnbr_tree, tnbr); |
8429abe0 | 1576 | free(tnbr); |
4af8997d | 1577 | break; |
8429abe0 RW |
1578 | } |
1579 | } | |
1580 | } | |
7989cdba | 1581 | RB_FOREACH_SAFE(xt, tnbr_head, &xconf->tnbr_tree, ttmp) { |
8429abe0 RW |
1582 | /* find new tnbrs */ |
1583 | if ((tnbr = tnbr_find(conf, xt->af, &xt->addr)) == NULL) { | |
1d75a89d RW |
1584 | COPY(tnbr, xt); |
1585 | RB_INSERT(tnbr_head, &conf->tnbr_tree, tnbr); | |
8429abe0 | 1586 | |
4af8997d | 1587 | switch (ldpd_process) { |
4af8997d | 1588 | case PROC_LDP_ENGINE: |
1d75a89d | 1589 | tnbr_update(tnbr); |
4af8997d | 1590 | break; |
1d75a89d | 1591 | case PROC_LDE_ENGINE: |
4af8997d | 1592 | case PROC_MAIN: |
4af8997d RW |
1593 | break; |
1594 | } | |
8429abe0 RW |
1595 | continue; |
1596 | } | |
1597 | ||
1598 | /* update existing tnbrs */ | |
1599 | if (!(tnbr->flags & F_TNBR_CONFIGURED)) | |
1600 | tnbr->flags |= F_TNBR_CONFIGURED; | |
8429abe0 RW |
1601 | } |
1602 | } | |
1603 | ||
1604 | static void | |
56b8a8d2 | 1605 | merge_nbrps(struct ldpd_conf *conf, struct ldpd_conf *xconf) |
8429abe0 RW |
1606 | { |
1607 | struct nbr_params *nbrp, *ntmp, *xn; | |
1608 | struct nbr *nbr; | |
1609 | int nbrp_changed; | |
1610 | ||
76c4abd1 | 1611 | RB_FOREACH_SAFE(nbrp, nbrp_head, &conf->nbrp_tree, ntmp) { |
8429abe0 | 1612 | /* find deleted nbrps */ |
61b5ae3d DS |
1613 | if (nbr_params_find(xconf, nbrp->lsr_id) != NULL) |
1614 | continue; | |
1615 | ||
1616 | switch (ldpd_process) { | |
1617 | case PROC_LDP_ENGINE: | |
1618 | nbr = nbr_find_ldpid(nbrp->lsr_id.s_addr); | |
1619 | if (nbr) { | |
1620 | session_shutdown(nbr, S_SHUTDOWN, 0, 0); | |
eac6e3f0 | 1621 | #ifdef __OpenBSD__ |
61b5ae3d | 1622 | pfkey_remove(nbr); |
eac6e3f0 | 1623 | #else |
61b5ae3d DS |
1624 | sock_set_md5sig( |
1625 | (ldp_af_global_get(&global, nbr->af)) | |
1626 | ->ldp_session_socket, | |
1627 | nbr->af, &nbr->raddr, NULL); | |
eac6e3f0 | 1628 | #endif |
61b5ae3d DS |
1629 | nbr->auth.method = AUTH_NONE; |
1630 | if (nbr_session_active_role(nbr)) | |
1631 | nbr_establish_connection(nbr); | |
8429abe0 | 1632 | } |
61b5ae3d DS |
1633 | break; |
1634 | case PROC_LDE_ENGINE: | |
1635 | case PROC_MAIN: | |
1636 | break; | |
8429abe0 | 1637 | } |
61b5ae3d DS |
1638 | RB_REMOVE(nbrp_head, &conf->nbrp_tree, nbrp); |
1639 | free(nbrp); | |
8429abe0 | 1640 | } |
61b5ae3d | 1641 | |
76c4abd1 | 1642 | RB_FOREACH_SAFE(xn, nbrp_head, &xconf->nbrp_tree, ntmp) { |
8429abe0 RW |
1643 | /* find new nbrps */ |
1644 | if ((nbrp = nbr_params_find(conf, xn->lsr_id)) == NULL) { | |
1d75a89d RW |
1645 | COPY(nbrp, xn); |
1646 | RB_INSERT(nbrp_head, &conf->nbrp_tree, nbrp); | |
8429abe0 | 1647 | |
4af8997d | 1648 | switch (ldpd_process) { |
4af8997d | 1649 | case PROC_LDP_ENGINE: |
1d75a89d | 1650 | nbr = nbr_find_ldpid(nbrp->lsr_id.s_addr); |
8429abe0 RW |
1651 | if (nbr) { |
1652 | session_shutdown(nbr, S_SHUTDOWN, 0, 0); | |
1d75a89d | 1653 | nbr->auth.method = nbrp->auth.method; |
eac6e3f0 | 1654 | #ifdef __OpenBSD__ |
1d75a89d | 1655 | if (pfkey_establish(nbr, nbrp) == -1) |
8429abe0 | 1656 | fatalx("pfkey setup failed"); |
eac6e3f0 RW |
1657 | #else |
1658 | sock_set_md5sig( | |
1659 | (ldp_af_global_get(&global, | |
1660 | nbr->af))->ldp_session_socket, | |
1661 | nbr->af, &nbr->raddr, | |
1d75a89d | 1662 | nbrp->auth.md5key); |
eac6e3f0 | 1663 | #endif |
8429abe0 RW |
1664 | if (nbr_session_active_role(nbr)) |
1665 | nbr_establish_connection(nbr); | |
1666 | } | |
4af8997d | 1667 | break; |
1d75a89d | 1668 | case PROC_LDE_ENGINE: |
4af8997d | 1669 | case PROC_MAIN: |
4af8997d | 1670 | break; |
8429abe0 RW |
1671 | } |
1672 | continue; | |
1673 | } | |
1674 | ||
1675 | /* update existing nbrps */ | |
1676 | if (nbrp->flags != xn->flags || | |
1677 | nbrp->keepalive != xn->keepalive || | |
1678 | nbrp->gtsm_enabled != xn->gtsm_enabled || | |
1679 | nbrp->gtsm_hops != xn->gtsm_hops || | |
1680 | nbrp->auth.method != xn->auth.method || | |
1681 | strcmp(nbrp->auth.md5key, xn->auth.md5key) != 0) | |
1682 | nbrp_changed = 1; | |
1683 | else | |
1684 | nbrp_changed = 0; | |
1685 | ||
1686 | nbrp->keepalive = xn->keepalive; | |
1687 | nbrp->gtsm_enabled = xn->gtsm_enabled; | |
1688 | nbrp->gtsm_hops = xn->gtsm_hops; | |
1689 | nbrp->auth.method = xn->auth.method; | |
1690 | strlcpy(nbrp->auth.md5key, xn->auth.md5key, | |
1691 | sizeof(nbrp->auth.md5key)); | |
1692 | nbrp->auth.md5key_len = xn->auth.md5key_len; | |
1693 | nbrp->flags = xn->flags; | |
1694 | ||
1695 | if (ldpd_process == PROC_LDP_ENGINE) { | |
1696 | nbr = nbr_find_ldpid(nbrp->lsr_id.s_addr); | |
1697 | if (nbr && nbrp_changed) { | |
1698 | session_shutdown(nbr, S_SHUTDOWN, 0, 0); | |
eac6e3f0 | 1699 | #ifdef __OpenBSD__ |
8429abe0 | 1700 | pfkey_remove(nbr); |
0f7b5df9 | 1701 | nbr->auth.method = nbrp->auth.method; |
8429abe0 RW |
1702 | if (pfkey_establish(nbr, nbrp) == -1) |
1703 | fatalx("pfkey setup failed"); | |
eac6e3f0 | 1704 | #else |
0f7b5df9 | 1705 | nbr->auth.method = nbrp->auth.method; |
eac6e3f0 RW |
1706 | sock_set_md5sig((ldp_af_global_get(&global, |
1707 | nbr->af))->ldp_session_socket, nbr->af, | |
1708 | &nbr->raddr, nbrp->auth.md5key); | |
1709 | #endif | |
8429abe0 RW |
1710 | if (nbr_session_active_role(nbr)) |
1711 | nbr_establish_connection(nbr); | |
1712 | } | |
1713 | } | |
8429abe0 RW |
1714 | } |
1715 | } | |
1716 | ||
1717 | static void | |
56b8a8d2 | 1718 | merge_l2vpns(struct ldpd_conf *conf, struct ldpd_conf *xconf) |
8429abe0 RW |
1719 | { |
1720 | struct l2vpn *l2vpn, *ltmp, *xl; | |
1721 | ||
90d7e7bd | 1722 | RB_FOREACH_SAFE(l2vpn, l2vpn_head, &conf->l2vpn_tree, ltmp) { |
8429abe0 | 1723 | /* find deleted l2vpns */ |
f67de3ee | 1724 | if (l2vpn_find(xconf, l2vpn->name) == NULL) { |
8429abe0 RW |
1725 | switch (ldpd_process) { |
1726 | case PROC_LDE_ENGINE: | |
1727 | l2vpn_exit(l2vpn); | |
1728 | break; | |
1729 | case PROC_LDP_ENGINE: | |
1730 | ldpe_l2vpn_exit(l2vpn); | |
1731 | break; | |
1732 | case PROC_MAIN: | |
1733 | break; | |
1734 | } | |
1d75a89d | 1735 | RB_REMOVE(l2vpn_head, &conf->l2vpn_tree, l2vpn); |
8429abe0 RW |
1736 | l2vpn_del(l2vpn); |
1737 | } | |
1738 | } | |
90d7e7bd | 1739 | RB_FOREACH_SAFE(xl, l2vpn_head, &xconf->l2vpn_tree, ltmp) { |
8429abe0 RW |
1740 | /* find new l2vpns */ |
1741 | if ((l2vpn = l2vpn_find(conf, xl->name)) == NULL) { | |
1d75a89d RW |
1742 | COPY(l2vpn, xl); |
1743 | RB_INSERT(l2vpn_head, &conf->l2vpn_tree, l2vpn); | |
45926e58 RZ |
1744 | RB_INIT(l2vpn_if_head, &l2vpn->if_tree); |
1745 | RB_INIT(l2vpn_pw_head, &l2vpn->pw_tree); | |
1746 | RB_INIT(l2vpn_pw_head, &l2vpn->pw_inactive_tree); | |
8429abe0 RW |
1747 | |
1748 | switch (ldpd_process) { | |
1749 | case PROC_LDE_ENGINE: | |
1d75a89d | 1750 | l2vpn_init(l2vpn); |
8429abe0 RW |
1751 | break; |
1752 | case PROC_LDP_ENGINE: | |
1d75a89d | 1753 | ldpe_l2vpn_init(l2vpn); |
8429abe0 RW |
1754 | break; |
1755 | case PROC_MAIN: | |
1756 | break; | |
1757 | } | |
8429abe0 RW |
1758 | } |
1759 | ||
1760 | /* update existing l2vpns */ | |
56b8a8d2 | 1761 | merge_l2vpn(conf, l2vpn, xl); |
8429abe0 RW |
1762 | } |
1763 | } | |
1764 | ||
1765 | static void | |
56b8a8d2 | 1766 | merge_l2vpn(struct ldpd_conf *xconf, struct l2vpn *l2vpn, struct l2vpn *xl) |
8429abe0 RW |
1767 | { |
1768 | struct l2vpn_if *lif, *ftmp, *xf; | |
1769 | struct l2vpn_pw *pw, *ptmp, *xp; | |
1770 | struct nbr *nbr; | |
1771 | int reset_nbr, reinstall_pwfec, reinstall_tnbr; | |
1772 | int previous_pw_type, previous_mtu; | |
1773 | ||
1774 | previous_pw_type = l2vpn->pw_type; | |
1775 | previous_mtu = l2vpn->mtu; | |
1776 | ||
1777 | /* merge intefaces */ | |
029c1958 | 1778 | RB_FOREACH_SAFE(lif, l2vpn_if_head, &l2vpn->if_tree, ftmp) { |
8429abe0 | 1779 | /* find deleted interfaces */ |
f67de3ee | 1780 | if (l2vpn_if_find(xl, lif->ifname) == NULL) { |
029c1958 | 1781 | RB_REMOVE(l2vpn_if_head, &l2vpn->if_tree, lif); |
8429abe0 RW |
1782 | free(lif); |
1783 | } | |
1784 | } | |
029c1958 | 1785 | RB_FOREACH_SAFE(xf, l2vpn_if_head, &xl->if_tree, ftmp) { |
8429abe0 | 1786 | /* find new interfaces */ |
865c8d5c | 1787 | if (l2vpn_if_find(l2vpn, xf->ifname) == NULL) { |
1d75a89d RW |
1788 | COPY(lif, xf); |
1789 | RB_INSERT(l2vpn_if_head, &l2vpn->if_tree, lif); | |
1790 | lif->l2vpn = l2vpn; | |
1791 | ||
1792 | switch (ldpd_process) { | |
1793 | case PROC_LDP_ENGINE: | |
1794 | case PROC_LDE_ENGINE: | |
1795 | break; | |
1796 | case PROC_MAIN: | |
1797 | kif_redistribute(lif->ifname); | |
1798 | break; | |
52b530fc | 1799 | } |
8429abe0 | 1800 | } |
8429abe0 RW |
1801 | } |
1802 | ||
eac6e3f0 | 1803 | /* merge active pseudowires */ |
20bacaeb | 1804 | RB_FOREACH_SAFE(pw, l2vpn_pw_head, &l2vpn->pw_tree, ptmp) { |
eac6e3f0 | 1805 | /* find deleted active pseudowires */ |
f67de3ee | 1806 | if (l2vpn_pw_find_active(xl, pw->ifname) == NULL) { |
8429abe0 RW |
1807 | switch (ldpd_process) { |
1808 | case PROC_LDE_ENGINE: | |
1809 | l2vpn_pw_exit(pw); | |
1810 | break; | |
1811 | case PROC_LDP_ENGINE: | |
1812 | ldpe_l2vpn_pw_exit(pw); | |
1813 | break; | |
1814 | case PROC_MAIN: | |
1815 | break; | |
1816 | } | |
1817 | ||
20bacaeb | 1818 | RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_tree, pw); |
8429abe0 RW |
1819 | free(pw); |
1820 | } | |
1821 | } | |
20bacaeb | 1822 | RB_FOREACH_SAFE(xp, l2vpn_pw_head, &xl->pw_tree, ptmp) { |
eac6e3f0 | 1823 | /* find new active pseudowires */ |
5c3f00af | 1824 | if ((pw = l2vpn_pw_find_active(l2vpn, xp->ifname)) == NULL) { |
1d75a89d RW |
1825 | COPY(pw, xp); |
1826 | RB_INSERT(l2vpn_pw_head, &l2vpn->pw_tree, pw); | |
1827 | pw->l2vpn = l2vpn; | |
8429abe0 RW |
1828 | |
1829 | switch (ldpd_process) { | |
1830 | case PROC_LDE_ENGINE: | |
1d75a89d | 1831 | l2vpn_pw_init(pw); |
8429abe0 RW |
1832 | break; |
1833 | case PROC_LDP_ENGINE: | |
1d75a89d | 1834 | ldpe_l2vpn_pw_init(pw); |
8429abe0 RW |
1835 | break; |
1836 | case PROC_MAIN: | |
1d75a89d | 1837 | kif_redistribute(pw->ifname); |
8429abe0 RW |
1838 | break; |
1839 | } | |
1840 | continue; | |
1841 | } | |
1842 | ||
eac6e3f0 | 1843 | /* update existing active pseudowire */ |
8429abe0 RW |
1844 | if (pw->af != xp->af || |
1845 | ldp_addrcmp(pw->af, &pw->addr, &xp->addr)) | |
1846 | reinstall_tnbr = 1; | |
1847 | else | |
1848 | reinstall_tnbr = 0; | |
1849 | ||
1850 | /* changes that require a session restart */ | |
1851 | if ((pw->flags & (F_PW_STATUSTLV_CONF|F_PW_CWORD_CONF)) != | |
1852 | (xp->flags & (F_PW_STATUSTLV_CONF|F_PW_CWORD_CONF))) | |
1853 | reset_nbr = 1; | |
1854 | else | |
1855 | reset_nbr = 0; | |
1856 | ||
1857 | if (l2vpn->pw_type != xl->pw_type || l2vpn->mtu != xl->mtu || | |
1858 | pw->pwid != xp->pwid || reinstall_tnbr || reset_nbr || | |
1859 | pw->lsr_id.s_addr != xp->lsr_id.s_addr) | |
1860 | reinstall_pwfec = 1; | |
1861 | else | |
1862 | reinstall_pwfec = 0; | |
1863 | ||
1864 | if (ldpd_process == PROC_LDP_ENGINE) { | |
1865 | if (reinstall_tnbr) | |
1866 | ldpe_l2vpn_pw_exit(pw); | |
1867 | if (reset_nbr) { | |
1868 | nbr = nbr_find_ldpid(pw->lsr_id.s_addr); | |
1869 | if (nbr && nbr->state == NBR_STA_OPER) | |
1870 | session_shutdown(nbr, S_SHUTDOWN, 0, 0); | |
1871 | } | |
1872 | } | |
be0fbdeb | 1873 | if (ldpd_process == PROC_LDE_ENGINE && reinstall_pwfec) |
8429abe0 RW |
1874 | l2vpn_pw_exit(pw); |
1875 | pw->lsr_id = xp->lsr_id; | |
1876 | pw->af = xp->af; | |
1877 | pw->addr = xp->addr; | |
1878 | pw->pwid = xp->pwid; | |
1879 | strlcpy(pw->ifname, xp->ifname, sizeof(pw->ifname)); | |
1880 | pw->ifindex = xp->ifindex; | |
1881 | if (xp->flags & F_PW_CWORD_CONF) | |
1882 | pw->flags |= F_PW_CWORD_CONF; | |
1883 | else | |
1884 | pw->flags &= ~F_PW_CWORD_CONF; | |
1885 | if (xp->flags & F_PW_STATUSTLV_CONF) | |
1886 | pw->flags |= F_PW_STATUSTLV_CONF; | |
1887 | else | |
1888 | pw->flags &= ~F_PW_STATUSTLV_CONF; | |
eac6e3f0 RW |
1889 | if (xp->flags & F_PW_STATIC_NBR_ADDR) |
1890 | pw->flags |= F_PW_STATIC_NBR_ADDR; | |
1891 | else | |
1892 | pw->flags &= ~F_PW_STATIC_NBR_ADDR; | |
8429abe0 RW |
1893 | if (ldpd_process == PROC_LDP_ENGINE && reinstall_tnbr) |
1894 | ldpe_l2vpn_pw_init(pw); | |
be0fbdeb | 1895 | if (ldpd_process == PROC_LDE_ENGINE && reinstall_pwfec) { |
8429abe0 RW |
1896 | l2vpn->pw_type = xl->pw_type; |
1897 | l2vpn->mtu = xl->mtu; | |
1898 | l2vpn_pw_init(pw); | |
1899 | l2vpn->pw_type = previous_pw_type; | |
1900 | l2vpn->mtu = previous_mtu; | |
1901 | } | |
8429abe0 RW |
1902 | } |
1903 | ||
eac6e3f0 | 1904 | /* merge inactive pseudowires */ |
20bacaeb | 1905 | RB_FOREACH_SAFE(pw, l2vpn_pw_head, &l2vpn->pw_inactive_tree, ptmp) { |
eac6e3f0 | 1906 | /* find deleted inactive pseudowires */ |
f67de3ee | 1907 | if (l2vpn_pw_find_inactive(xl, pw->ifname) == NULL) { |
20bacaeb | 1908 | RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_inactive_tree, pw); |
eac6e3f0 RW |
1909 | free(pw); |
1910 | } | |
1911 | } | |
20bacaeb | 1912 | RB_FOREACH_SAFE(xp, l2vpn_pw_head, &xl->pw_inactive_tree, ptmp) { |
eac6e3f0 | 1913 | /* find new inactive pseudowires */ |
5c3f00af | 1914 | if ((pw = l2vpn_pw_find_inactive(l2vpn, xp->ifname)) == NULL) { |
1d75a89d RW |
1915 | COPY(pw, xp); |
1916 | RB_INSERT(l2vpn_pw_head, &l2vpn->pw_inactive_tree, pw); | |
1917 | pw->l2vpn = l2vpn; | |
1918 | ||
1919 | switch (ldpd_process) { | |
1920 | case PROC_LDE_ENGINE: | |
1921 | case PROC_LDP_ENGINE: | |
1922 | break; | |
1923 | case PROC_MAIN: | |
1924 | kif_redistribute(pw->ifname); | |
1925 | break; | |
52b530fc | 1926 | } |
eac6e3f0 RW |
1927 | continue; |
1928 | } | |
1929 | ||
1930 | /* update existing inactive pseudowire */ | |
1931 | pw->lsr_id.s_addr = xp->lsr_id.s_addr; | |
1932 | pw->af = xp->af; | |
1933 | pw->addr = xp->addr; | |
1934 | pw->pwid = xp->pwid; | |
1935 | strlcpy(pw->ifname, xp->ifname, sizeof(pw->ifname)); | |
1936 | pw->ifindex = xp->ifindex; | |
1937 | pw->flags = xp->flags; | |
eac6e3f0 | 1938 | } |
eac6e3f0 | 1939 | |
8429abe0 RW |
1940 | l2vpn->pw_type = xl->pw_type; |
1941 | l2vpn->mtu = xl->mtu; | |
1942 | strlcpy(l2vpn->br_ifname, xl->br_ifname, sizeof(l2vpn->br_ifname)); | |
1943 | l2vpn->br_ifindex = xl->br_ifindex; | |
1944 | } | |
1945 | ||
1946 | struct ldpd_conf * | |
1947 | config_new_empty(void) | |
1948 | { | |
1949 | struct ldpd_conf *xconf; | |
1950 | ||
1951 | xconf = calloc(1, sizeof(*xconf)); | |
1952 | if (xconf == NULL) | |
1953 | fatal(NULL); | |
1954 | ||
45926e58 RZ |
1955 | RB_INIT(iface_head, &xconf->iface_tree); |
1956 | RB_INIT(tnbr_head, &xconf->tnbr_tree); | |
1957 | RB_INIT(nbrp_head, &xconf->nbrp_tree); | |
1958 | RB_INIT(l2vpn_head, &xconf->l2vpn_tree); | |
8429abe0 | 1959 | |
e4a82008 RW |
1960 | /* set default values */ |
1961 | ldp_config_reset(xconf); | |
1962 | ||
8429abe0 RW |
1963 | return (xconf); |
1964 | } | |
1965 | ||
1966 | void | |
1967 | config_clear(struct ldpd_conf *conf) | |
1968 | { | |
1969 | struct ldpd_conf *xconf; | |
1970 | ||
1971 | /* | |
1972 | * Merge current config with an empty config, this will deactivate | |
1973 | * and deallocate all the interfaces, pseudowires and so on. Before | |
1974 | * merging, copy the router-id and other variables to avoid some | |
1975 | * unnecessary operations, like trying to reset the neighborships. | |
1976 | */ | |
1977 | xconf = config_new_empty(); | |
1978 | xconf->ipv4 = conf->ipv4; | |
1979 | xconf->ipv6 = conf->ipv6; | |
1980 | xconf->rtr_id = conf->rtr_id; | |
1981 | xconf->trans_pref = conf->trans_pref; | |
1982 | xconf->flags = conf->flags; | |
1983 | merge_config(conf, xconf); | |
1d75a89d | 1984 | free(xconf); |
8429abe0 RW |
1985 | free(conf); |
1986 | } |