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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 | ||
eac6e3f0 RW |
89 | #define LDP_DEFAULT_CONFIG "ldpd.conf" |
90 | #define LDP_VTY_PORT 2612 | |
91 | ||
92 | /* Master of threads. */ | |
93 | struct thread_master *master; | |
94 | ||
dbce3582 RW |
95 | static struct frr_daemon_info ldpd_di; |
96 | ||
eac6e3f0 RW |
97 | /* ldpd privileges */ |
98 | static zebra_capabilities_t _caps_p [] = | |
8429abe0 | 99 | { |
eac6e3f0 RW |
100 | ZCAP_BIND, |
101 | ZCAP_NET_ADMIN | |
102 | }; | |
103 | ||
104 | struct zebra_privs_t ldpd_privs = | |
105 | { | |
b2f36157 DL |
106 | #if defined(FRR_USER) && defined(FRR_GROUP) |
107 | .user = FRR_USER, | |
108 | .group = FRR_GROUP, | |
eac6e3f0 RW |
109 | #endif |
110 | #if defined(VTY_GROUP) | |
111 | .vty_group = VTY_GROUP, | |
112 | #endif | |
113 | .caps_p = _caps_p, | |
114 | .cap_num_p = array_size(_caps_p), | |
115 | .cap_num_i = 0 | |
116 | }; | |
117 | ||
372b8bd3 RW |
118 | /* CTL Socket path */ |
119 | char ctl_sock_path[MAXPATHLEN] = LDPD_SOCKET; | |
120 | ||
eac6e3f0 | 121 | /* LDPd options. */ |
372b8bd3 | 122 | #define OPTION_CTLSOCK 1001 |
eac6e3f0 RW |
123 | static struct option longopts[] = |
124 | { | |
372b8bd3 | 125 | { "ctl_socket", required_argument, NULL, OPTION_CTLSOCK}, |
fea12efb | 126 | { "instance", required_argument, NULL, 'n'}, |
eac6e3f0 RW |
127 | { 0 } |
128 | }; | |
129 | ||
eac6e3f0 RW |
130 | /* SIGHUP handler. */ |
131 | static void | |
132 | sighup(void) | |
133 | { | |
134 | log_info("SIGHUP received"); | |
dbce3582 | 135 | |
dbce3582 | 136 | /* |
e4a82008 RW |
137 | * Do a full configuration reload. In other words, reset vty_conf |
138 | * and build a new configuartion from scratch. | |
dbce3582 | 139 | */ |
e4a82008 RW |
140 | ldp_config_reset(vty_conf); |
141 | vty_read_config(ldpd_di.config_file, config_default); | |
142 | ldp_config_apply(NULL, vty_conf); | |
eac6e3f0 RW |
143 | } |
144 | ||
145 | /* SIGINT / SIGTERM handler. */ | |
146 | static void | |
147 | sigint(void) | |
8429abe0 | 148 | { |
eac6e3f0 RW |
149 | log_info("SIGINT received"); |
150 | ldpd_shutdown(); | |
151 | } | |
8429abe0 | 152 | |
eac6e3f0 RW |
153 | /* SIGUSR1 handler. */ |
154 | static void | |
155 | sigusr1(void) | |
156 | { | |
dd8376fe | 157 | zlog_rotate(); |
8429abe0 RW |
158 | } |
159 | ||
eac6e3f0 RW |
160 | static struct quagga_signal_t ldp_signals[] = |
161 | { | |
162 | { | |
163 | .signal = SIGHUP, | |
164 | .handler = &sighup, | |
165 | }, | |
166 | { | |
167 | .signal = SIGINT, | |
168 | .handler = &sigint, | |
169 | }, | |
170 | { | |
171 | .signal = SIGTERM, | |
172 | .handler = &sigint, | |
173 | }, | |
174 | { | |
175 | .signal = SIGUSR1, | |
176 | .handler = &sigusr1, | |
177 | } | |
178 | }; | |
179 | ||
4f04a76b DL |
180 | FRR_DAEMON_INFO(ldpd, LDP, |
181 | .vty_port = LDP_VTY_PORT, | |
182 | ||
183 | .proghelp = "Implementation of the LDP protocol.", | |
184 | ||
185 | .signals = ldp_signals, | |
186 | .n_signals = array_size(ldp_signals), | |
187 | ||
188 | .privs = &ldpd_privs, | |
189 | ) | |
190 | ||
9124048d DS |
191 | static int ldp_config_fork_apply(struct thread *t) |
192 | { | |
193 | /* | |
194 | * So the frr_config_fork() function schedules | |
195 | * the read of the vty config( if there is a | |
196 | * non-integrated config ) to be after the | |
197 | * end of startup and we are starting the | |
198 | * main process loop. We need to schedule | |
199 | * the application of this if necessary | |
200 | * after the read in of the config. | |
201 | */ | |
202 | ldp_config_apply(NULL, vty_conf); | |
203 | ||
204 | return 0; | |
205 | } | |
206 | ||
8429abe0 RW |
207 | int |
208 | main(int argc, char *argv[]) | |
209 | { | |
8429abe0 | 210 | char *saved_argv0; |
eac6e3f0 | 211 | int lflag = 0, eflag = 0; |
28e8294c RW |
212 | int pipe_parent2ldpe[2], pipe_parent2ldpe_sync[2]; |
213 | int pipe_parent2lde[2], pipe_parent2lde_sync[2]; | |
372b8bd3 | 214 | char *ctl_sock_name; |
9124048d | 215 | struct thread *thread = NULL; |
8429abe0 | 216 | |
8429abe0 | 217 | ldpd_process = PROC_MAIN; |
fa68f9da | 218 | log_procname = log_procnames[ldpd_process]; |
8429abe0 | 219 | |
8429abe0 RW |
220 | saved_argv0 = argv[0]; |
221 | if (saved_argv0 == NULL) | |
eac6e3f0 | 222 | saved_argv0 = (char *)"ldpd"; |
8429abe0 | 223 | |
4f04a76b | 224 | frr_preinit(&ldpd_di, argc, argv); |
fea12efb | 225 | frr_opt_add("LEn:", longopts, |
226 | " --ctl_socket Override ctl socket path\n" | |
7991dc32 | 227 | " -n, --instance Instance id\n"); |
4f04a76b | 228 | |
eac6e3f0 RW |
229 | while (1) { |
230 | int opt; | |
231 | ||
4f04a76b | 232 | opt = frr_getopt(argc, argv, NULL); |
eac6e3f0 RW |
233 | |
234 | if (opt == EOF) | |
8429abe0 | 235 | break; |
eac6e3f0 RW |
236 | |
237 | switch (opt) { | |
238 | case 0: | |
239 | break; | |
372b8bd3 RW |
240 | case OPTION_CTLSOCK: |
241 | ctl_sock_name = strrchr(LDPD_SOCKET, '/'); | |
242 | if (ctl_sock_name) | |
243 | /* skip '/' */ | |
244 | ctl_sock_name++; | |
245 | else | |
246 | /* | |
247 | * LDPD_SOCKET configured as relative path | |
248 | * during config? Should really never happen for | |
249 | * sensible config | |
250 | */ | |
251 | ctl_sock_name = (char *)LDPD_SOCKET; | |
274f5abf | 252 | strlcpy(ctl_sock_path, optarg, sizeof(ctl_sock_path)); |
372b8bd3 RW |
253 | strlcat(ctl_sock_path, "/", sizeof(ctl_sock_path)); |
254 | strlcat(ctl_sock_path, ctl_sock_name, | |
255 | sizeof(ctl_sock_path)); | |
256 | break; | |
fea12efb | 257 | case 'n': |
274f5abf RW |
258 | init.instance = atoi(optarg); |
259 | if (init.instance < 1) | |
fea12efb | 260 | exit(0); |
261 | break; | |
8429abe0 RW |
262 | case 'L': |
263 | lflag = 1; | |
264 | break; | |
265 | case 'E': | |
266 | eflag = 1; | |
267 | break; | |
268 | default: | |
4f04a76b | 269 | frr_help_exit(1); |
eac6e3f0 | 270 | break; |
8429abe0 RW |
271 | } |
272 | } | |
273 | ||
274f5abf RW |
274 | strlcpy(init.user, ldpd_privs.user, sizeof(init.user)); |
275 | strlcpy(init.group, ldpd_privs.group, sizeof(init.group)); | |
276 | strlcpy(init.ctl_sock_path, ctl_sock_path, sizeof(init.ctl_sock_path)); | |
689f5a8c | 277 | strlcpy(init.zclient_serv_path, frr_zclientpath, |
274f5abf | 278 | sizeof(init.zclient_serv_path)); |
4f04a76b | 279 | |
8429abe0 | 280 | argc -= optind; |
8429abe0 | 281 | if (argc > 0 || (lflag && eflag)) |
4f04a76b | 282 | frr_help_exit(1); |
8429abe0 | 283 | |
eac6e3f0 RW |
284 | /* check for root privileges */ |
285 | if (geteuid() != 0) { | |
286 | errno = EPERM; | |
4f04a76b | 287 | perror(ldpd_di.progname); |
8429abe0 RW |
288 | exit(1); |
289 | } | |
290 | ||
16156c10 DL |
291 | if (lflag || eflag) |
292 | openzlog(ldpd_di.progname, "LDP", 0, | |
293 | LOG_CONS | LOG_NDELAY | LOG_PID, LOG_DAEMON); | |
eac6e3f0 | 294 | if (lflag) |
274f5abf | 295 | lde(); |
eac6e3f0 | 296 | else if (eflag) |
274f5abf | 297 | ldpe(); |
8429abe0 | 298 | |
eac6e3f0 | 299 | if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe_parent2ldpe) == -1) |
8429abe0 | 300 | fatal("socketpair"); |
28e8294c RW |
301 | if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, |
302 | pipe_parent2ldpe_sync) == -1) | |
303 | fatal("socketpair"); | |
eac6e3f0 | 304 | if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe_parent2lde) == -1) |
8429abe0 | 305 | fatal("socketpair"); |
28e8294c RW |
306 | if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, |
307 | pipe_parent2lde_sync) == -1) | |
308 | fatal("socketpair"); | |
eac6e3f0 RW |
309 | sock_set_nonblock(pipe_parent2ldpe[0]); |
310 | sock_set_cloexec(pipe_parent2ldpe[0]); | |
311 | sock_set_nonblock(pipe_parent2ldpe[1]); | |
312 | sock_set_cloexec(pipe_parent2ldpe[1]); | |
28e8294c RW |
313 | sock_set_nonblock(pipe_parent2ldpe_sync[0]); |
314 | sock_set_cloexec(pipe_parent2ldpe_sync[0]); | |
315 | sock_set_cloexec(pipe_parent2ldpe_sync[1]); | |
eac6e3f0 RW |
316 | sock_set_nonblock(pipe_parent2lde[0]); |
317 | sock_set_cloexec(pipe_parent2lde[0]); | |
318 | sock_set_nonblock(pipe_parent2lde[1]); | |
319 | sock_set_cloexec(pipe_parent2lde[1]); | |
28e8294c RW |
320 | sock_set_nonblock(pipe_parent2lde_sync[0]); |
321 | sock_set_cloexec(pipe_parent2lde_sync[0]); | |
322 | sock_set_cloexec(pipe_parent2lde_sync[1]); | |
8429abe0 RW |
323 | |
324 | /* start children */ | |
325 | lde_pid = start_child(PROC_LDE_ENGINE, saved_argv0, | |
274f5abf | 326 | pipe_parent2lde[1], pipe_parent2lde_sync[1]); |
8429abe0 | 327 | ldpe_pid = start_child(PROC_LDP_ENGINE, saved_argv0, |
274f5abf | 328 | pipe_parent2ldpe[1], pipe_parent2ldpe_sync[1]); |
8429abe0 | 329 | |
16156c10 | 330 | master = frr_init(); |
83139e57 | 331 | |
83139e57 | 332 | vty_config_lockless(); |
6df85364 | 333 | vrf_init(NULL, NULL, NULL, NULL); |
83139e57 RW |
334 | access_list_init(); |
335 | ldp_vty_init(); | |
eac6e3f0 | 336 | ldp_zebra_init(master); |
8429abe0 | 337 | |
56b8a8d2 | 338 | /* |
e4a82008 RW |
339 | * Create base configuration with sane defaults. All configuration |
340 | * requests (e.g. CLI) act on vty_conf and then call ldp_config_apply() | |
341 | * to merge the changes into ldpd_conf, which contains the actual | |
342 | * running configuration. | |
56b8a8d2 | 343 | */ |
e4a82008 | 344 | ldpd_conf = config_new_empty(); |
1d75a89d | 345 | vty_conf = config_new_empty(); |
1d75a89d | 346 | QOBJ_REG(vty_conf, ldpd_conf); |
56b8a8d2 RW |
347 | |
348 | /* read configuration file and daemonize */ | |
83139e57 RW |
349 | frr_config_fork(); |
350 | ||
e4a82008 | 351 | /* apply configuration */ |
9124048d | 352 | thread_add_event(master, ldp_config_fork_apply, NULL, 0, &thread); |
e4a82008 | 353 | |
8429abe0 | 354 | /* setup pipes to children */ |
28e8294c RW |
355 | if ((iev_ldpe = calloc(1, sizeof(struct imsgev))) == NULL || |
356 | (iev_ldpe_sync = calloc(1, sizeof(struct imsgev))) == NULL || | |
357 | (iev_lde = calloc(1, sizeof(struct imsgev))) == NULL || | |
358 | (iev_lde_sync = calloc(1, sizeof(struct imsgev))) == NULL) | |
8429abe0 RW |
359 | fatal(NULL); |
360 | imsg_init(&iev_ldpe->ibuf, pipe_parent2ldpe[0]); | |
eac6e3f0 | 361 | iev_ldpe->handler_read = main_dispatch_ldpe; |
66e78ae6 QY |
362 | iev_ldpe->ev_read = NULL; |
363 | thread_add_read(master, iev_ldpe->handler_read, iev_ldpe, iev_ldpe->ibuf.fd, | |
364 | &iev_ldpe->ev_read); | |
eac6e3f0 | 365 | iev_ldpe->handler_write = ldp_write_handler; |
28e8294c RW |
366 | |
367 | imsg_init(&iev_ldpe_sync->ibuf, pipe_parent2ldpe_sync[0]); | |
368 | iev_ldpe_sync->handler_read = main_dispatch_ldpe; | |
66e78ae6 QY |
369 | iev_ldpe_sync->ev_read = NULL; |
370 | thread_add_read(master, iev_ldpe_sync->handler_read, iev_ldpe_sync, iev_ldpe_sync->ibuf.fd, | |
371 | &iev_ldpe_sync->ev_read); | |
28e8294c | 372 | iev_ldpe_sync->handler_write = ldp_write_handler; |
8429abe0 | 373 | |
eac6e3f0 RW |
374 | imsg_init(&iev_lde->ibuf, pipe_parent2lde[0]); |
375 | iev_lde->handler_read = main_dispatch_lde; | |
66e78ae6 QY |
376 | iev_lde->ev_read = NULL; |
377 | thread_add_read(master, iev_lde->handler_read, iev_lde, iev_lde->ibuf.fd, | |
378 | &iev_lde->ev_read); | |
eac6e3f0 | 379 | iev_lde->handler_write = ldp_write_handler; |
28e8294c RW |
380 | |
381 | imsg_init(&iev_lde_sync->ibuf, pipe_parent2lde_sync[0]); | |
382 | iev_lde_sync->handler_read = main_dispatch_lde; | |
66e78ae6 QY |
383 | iev_lde_sync->ev_read = NULL; |
384 | thread_add_read(master, iev_lde_sync->handler_read, iev_lde_sync, iev_lde_sync->ibuf.fd, | |
385 | &iev_lde_sync->ev_read); | |
28e8294c | 386 | iev_lde_sync->handler_write = ldp_write_handler; |
8429abe0 RW |
387 | |
388 | if (main_imsg_send_ipc_sockets(&iev_ldpe->ibuf, &iev_lde->ibuf)) | |
389 | fatal("could not establish imsg links"); | |
eac6e3f0 RW |
390 | main_imsg_compose_both(IMSG_DEBUG_UPDATE, &ldp_debug, |
391 | sizeof(ldp_debug)); | |
08e4b244 | 392 | main_imsg_compose_both(IMSG_INIT, &init, sizeof(init)); |
8429abe0 RW |
393 | main_imsg_send_config(ldpd_conf); |
394 | ||
8429abe0 RW |
395 | if (ldpd_conf->ipv4.flags & F_LDPD_AF_ENABLED) |
396 | main_imsg_send_net_sockets(AF_INET); | |
397 | if (ldpd_conf->ipv6.flags & F_LDPD_AF_ENABLED) | |
398 | main_imsg_send_net_sockets(AF_INET6); | |
399 | ||
16077f2f | 400 | frr_run(master); |
8429abe0 | 401 | |
8429abe0 RW |
402 | /* NOTREACHED */ |
403 | return (0); | |
404 | } | |
405 | ||
eac6e3f0 | 406 | static void |
8429abe0 RW |
407 | ldpd_shutdown(void) |
408 | { | |
409 | pid_t pid; | |
410 | int status; | |
411 | ||
03951374 DL |
412 | frr_early_fini(); |
413 | ||
8429abe0 RW |
414 | /* close pipes */ |
415 | msgbuf_clear(&iev_ldpe->ibuf.w); | |
416 | close(iev_ldpe->ibuf.fd); | |
417 | msgbuf_clear(&iev_lde->ibuf.w); | |
418 | close(iev_lde->ibuf.fd); | |
419 | ||
8429abe0 | 420 | config_clear(ldpd_conf); |
1d75a89d | 421 | |
e4a82008 | 422 | ldp_config_reset(vty_conf); |
1d75a89d RW |
423 | QOBJ_UNREG(vty_conf); |
424 | free(vty_conf); | |
8429abe0 RW |
425 | |
426 | log_debug("waiting for children to terminate"); | |
0e8d7233 | 427 | |
428 | while (true) { | |
429 | /* Wait for child process. */ | |
8429abe0 RW |
430 | pid = wait(&status); |
431 | if (pid == -1) { | |
0e8d7233 | 432 | /* We got interrupted, try again. */ |
433 | if (errno == EINTR) | |
434 | continue; | |
435 | /* No more processes were found. */ | |
436 | if (errno != ECHILD) | |
437 | break; | |
438 | ||
439 | /* Unhandled errno condition. */ | |
440 | fatal("wait"); | |
441 | /* UNREACHABLE */ | |
442 | } | |
443 | ||
444 | /* We found something, lets announce it. */ | |
445 | if (WIFSIGNALED(status)) | |
8429abe0 | 446 | log_warnx("%s terminated; signal %d", |
0e8d7233 | 447 | (pid == lde_pid ? "label decision engine" |
448 | : "ldp engine"), | |
449 | WTERMSIG(status)); | |
450 | ||
451 | /* Repeat until there are no more child processes. */ | |
452 | } | |
8429abe0 RW |
453 | |
454 | free(iev_ldpe); | |
455 | free(iev_lde); | |
456 | ||
457 | log_info("terminating"); | |
64dffe25 RW |
458 | |
459 | vrf_terminate(); | |
45a8eba9 | 460 | access_list_reset(); |
64dffe25 | 461 | ldp_zebra_destroy(); |
64dffe25 | 462 | |
03951374 | 463 | frr_fini(); |
8429abe0 RW |
464 | exit(0); |
465 | } | |
466 | ||
467 | static pid_t | |
274f5abf | 468 | start_child(enum ldpd_process p, char *argv0, int fd_async, int fd_sync) |
8429abe0 | 469 | { |
274f5abf | 470 | char *argv[3]; |
547322cb | 471 | int argc = 0, nullfd; |
8429abe0 RW |
472 | pid_t pid; |
473 | ||
474 | switch (pid = fork()) { | |
475 | case -1: | |
476 | fatal("cannot fork"); | |
477 | case 0: | |
478 | break; | |
479 | default: | |
28e8294c RW |
480 | close(fd_async); |
481 | close(fd_sync); | |
8429abe0 RW |
482 | return (pid); |
483 | } | |
484 | ||
547322cb | 485 | nullfd = open("/dev/null", O_RDONLY | O_NOCTTY); |
993bab89 | 486 | if (nullfd == -1) { |
1e404099 DS |
487 | zlog_ferr(LIB_ERR_SYSTEM_CALL, |
488 | "%s: failed to open /dev/null: %s", __func__, | |
489 | safe_strerror(errno)); | |
993bab89 RW |
490 | } else { |
491 | dup2(nullfd, 0); | |
492 | dup2(nullfd, 1); | |
493 | dup2(nullfd, 2); | |
494 | close(nullfd); | |
495 | } | |
547322cb | 496 | |
28e8294c RW |
497 | if (dup2(fd_async, LDPD_FD_ASYNC) == -1) |
498 | fatal("cannot setup imsg async fd"); | |
499 | if (dup2(fd_sync, LDPD_FD_SYNC) == -1) | |
500 | fatal("cannot setup imsg sync fd"); | |
8429abe0 RW |
501 | |
502 | argv[argc++] = argv0; | |
503 | switch (p) { | |
504 | case PROC_MAIN: | |
505 | fatalx("Can not start main process"); | |
506 | case PROC_LDE_ENGINE: | |
eac6e3f0 | 507 | argv[argc++] = (char *)"-L"; |
8429abe0 RW |
508 | break; |
509 | case PROC_LDP_ENGINE: | |
eac6e3f0 | 510 | argv[argc++] = (char *)"-E"; |
8429abe0 RW |
511 | break; |
512 | } | |
8429abe0 RW |
513 | argv[argc++] = NULL; |
514 | ||
515 | execvp(argv0, argv); | |
516 | fatal("execvp"); | |
517 | } | |
518 | ||
519 | /* imsg handling */ | |
520 | /* ARGSUSED */ | |
eac6e3f0 RW |
521 | static int |
522 | main_dispatch_ldpe(struct thread *thread) | |
8429abe0 | 523 | { |
eac6e3f0 | 524 | struct imsgev *iev = THREAD_ARG(thread); |
8429abe0 RW |
525 | struct imsgbuf *ibuf = &iev->ibuf; |
526 | struct imsg imsg; | |
527 | int af; | |
528 | ssize_t n; | |
eac6e3f0 | 529 | int shut = 0; |
8429abe0 | 530 | |
eac6e3f0 RW |
531 | iev->ev_read = NULL; |
532 | ||
533 | if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN) | |
534 | fatal("imsg_read error"); | |
535 | if (n == 0) /* connection closed */ | |
536 | shut = 1; | |
8429abe0 RW |
537 | |
538 | for (;;) { | |
539 | if ((n = imsg_get(ibuf, &imsg)) == -1) | |
540 | fatal("imsg_get"); | |
541 | ||
542 | if (n == 0) | |
543 | break; | |
544 | ||
545 | switch (imsg.hdr.type) { | |
eac6e3f0 RW |
546 | case IMSG_LOG: |
547 | logit(imsg.hdr.pid, "%s", (const char *)imsg.data); | |
548 | break; | |
8429abe0 RW |
549 | case IMSG_REQUEST_SOCKETS: |
550 | af = imsg.hdr.pid; | |
551 | main_imsg_send_net_sockets(af); | |
552 | break; | |
45a8eba9 RW |
553 | case IMSG_ACL_CHECK: |
554 | if (imsg.hdr.len != IMSG_HEADER_SIZE + | |
555 | sizeof(struct acl_check)) | |
556 | fatalx("IMSG_ACL_CHECK imsg with wrong len"); | |
557 | ldp_acl_reply(iev, (struct acl_check *)imsg.data); | |
558 | break; | |
8429abe0 RW |
559 | default: |
560 | log_debug("%s: error handling imsg %d", __func__, | |
561 | imsg.hdr.type); | |
562 | break; | |
563 | } | |
564 | imsg_free(&imsg); | |
565 | } | |
566 | if (!shut) | |
567 | imsg_event_add(iev); | |
568 | else { | |
eac6e3f0 RW |
569 | /* this pipe is dead, so remove the event handlers and exit */ |
570 | THREAD_READ_OFF(iev->ev_read); | |
571 | THREAD_WRITE_OFF(iev->ev_write); | |
572 | ldpe_pid = 0; | |
573 | if (lde_pid == 0) | |
574 | ldpd_shutdown(); | |
575 | else | |
576 | kill(lde_pid, SIGTERM); | |
8429abe0 | 577 | } |
eac6e3f0 RW |
578 | |
579 | return (0); | |
8429abe0 RW |
580 | } |
581 | ||
582 | /* ARGSUSED */ | |
eac6e3f0 RW |
583 | static int |
584 | main_dispatch_lde(struct thread *thread) | |
8429abe0 | 585 | { |
eac6e3f0 | 586 | struct imsgev *iev = THREAD_ARG(thread); |
8429abe0 RW |
587 | struct imsgbuf *ibuf = &iev->ibuf; |
588 | struct imsg imsg; | |
589 | ssize_t n; | |
590 | int shut = 0; | |
591 | ||
eac6e3f0 RW |
592 | iev->ev_read = NULL; |
593 | ||
594 | if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN) | |
595 | fatal("imsg_read error"); | |
596 | if (n == 0) /* connection closed */ | |
597 | shut = 1; | |
8429abe0 RW |
598 | |
599 | for (;;) { | |
600 | if ((n = imsg_get(ibuf, &imsg)) == -1) | |
601 | fatal("imsg_get"); | |
602 | ||
603 | if (n == 0) | |
604 | break; | |
605 | ||
606 | switch (imsg.hdr.type) { | |
eac6e3f0 RW |
607 | case IMSG_LOG: |
608 | logit(imsg.hdr.pid, "%s", (const char *)imsg.data); | |
609 | break; | |
8429abe0 RW |
610 | case IMSG_KLABEL_CHANGE: |
611 | if (imsg.hdr.len - IMSG_HEADER_SIZE != | |
612 | sizeof(struct kroute)) | |
613 | fatalx("invalid size of IMSG_KLABEL_CHANGE"); | |
614 | if (kr_change(imsg.data)) | |
615 | log_warnx("%s: error changing route", __func__); | |
616 | break; | |
617 | case IMSG_KLABEL_DELETE: | |
618 | if (imsg.hdr.len - IMSG_HEADER_SIZE != | |
619 | sizeof(struct kroute)) | |
620 | fatalx("invalid size of IMSG_KLABEL_DELETE"); | |
621 | if (kr_delete(imsg.data)) | |
622 | log_warnx("%s: error deleting route", __func__); | |
623 | break; | |
87b5f1b7 RW |
624 | case IMSG_KPW_ADD: |
625 | case IMSG_KPW_DELETE: | |
626 | case IMSG_KPW_SET: | |
627 | case IMSG_KPW_UNSET: | |
8429abe0 | 628 | if (imsg.hdr.len - IMSG_HEADER_SIZE != |
87b5f1b7 | 629 | sizeof(struct zapi_pw)) |
8429abe0 | 630 | fatalx("invalid size of IMSG_KPWLABEL_CHANGE"); |
87b5f1b7 RW |
631 | |
632 | switch (imsg.hdr.type) { | |
633 | case IMSG_KPW_ADD: | |
634 | if (kmpw_add(imsg.data)) | |
635 | log_warnx("%s: error adding " | |
636 | "pseudowire", __func__); | |
637 | break; | |
638 | case IMSG_KPW_DELETE: | |
639 | if (kmpw_del(imsg.data)) | |
640 | log_warnx("%s: error deleting " | |
641 | "pseudowire", __func__); | |
642 | break; | |
643 | case IMSG_KPW_SET: | |
644 | if (kmpw_set(imsg.data)) | |
645 | log_warnx("%s: error setting " | |
646 | "pseudowire", __func__); | |
647 | break; | |
648 | case IMSG_KPW_UNSET: | |
649 | if (kmpw_unset(imsg.data)) | |
650 | log_warnx("%s: error unsetting " | |
651 | "pseudowire", __func__); | |
652 | break; | |
653 | } | |
8429abe0 | 654 | break; |
45a8eba9 RW |
655 | case IMSG_ACL_CHECK: |
656 | if (imsg.hdr.len != IMSG_HEADER_SIZE + | |
657 | sizeof(struct acl_check)) | |
658 | fatalx("IMSG_ACL_CHECK imsg with wrong len"); | |
659 | ldp_acl_reply(iev, (struct acl_check *)imsg.data); | |
660 | break; | |
8429abe0 RW |
661 | default: |
662 | log_debug("%s: error handling imsg %d", __func__, | |
663 | imsg.hdr.type); | |
664 | break; | |
665 | } | |
666 | imsg_free(&imsg); | |
667 | } | |
668 | if (!shut) | |
669 | imsg_event_add(iev); | |
670 | else { | |
eac6e3f0 RW |
671 | /* this pipe is dead, so remove the event handlers and exit */ |
672 | THREAD_READ_OFF(iev->ev_read); | |
673 | THREAD_WRITE_OFF(iev->ev_write); | |
674 | lde_pid = 0; | |
675 | if (ldpe_pid == 0) | |
676 | ldpd_shutdown(); | |
677 | else | |
678 | kill(ldpe_pid, SIGTERM); | |
8429abe0 | 679 | } |
eac6e3f0 RW |
680 | |
681 | return (0); | |
682 | } | |
683 | ||
684 | /* ARGSUSED */ | |
685 | int | |
686 | ldp_write_handler(struct thread *thread) | |
687 | { | |
688 | struct imsgev *iev = THREAD_ARG(thread); | |
689 | struct imsgbuf *ibuf = &iev->ibuf; | |
690 | ssize_t n; | |
691 | ||
692 | iev->ev_write = NULL; | |
693 | ||
694 | if ((n = msgbuf_write(&ibuf->w)) == -1 && errno != EAGAIN) | |
695 | fatal("msgbuf_write"); | |
696 | if (n == 0) { | |
697 | /* this pipe is dead, so remove the event handlers */ | |
698 | THREAD_READ_OFF(iev->ev_read); | |
699 | THREAD_WRITE_OFF(iev->ev_write); | |
700 | return (0); | |
701 | } | |
702 | ||
703 | imsg_event_add(iev); | |
704 | ||
705 | return (0); | |
8429abe0 RW |
706 | } |
707 | ||
708 | void | |
709 | main_imsg_compose_ldpe(int type, pid_t pid, void *data, uint16_t datalen) | |
710 | { | |
711 | if (iev_ldpe == NULL) | |
712 | return; | |
713 | imsg_compose_event(iev_ldpe, type, 0, pid, -1, data, datalen); | |
714 | } | |
715 | ||
716 | void | |
717 | main_imsg_compose_lde(int type, pid_t pid, void *data, uint16_t datalen) | |
718 | { | |
719 | imsg_compose_event(iev_lde, type, 0, pid, -1, data, datalen); | |
720 | } | |
721 | ||
eac6e3f0 | 722 | int |
8429abe0 RW |
723 | main_imsg_compose_both(enum imsg_type type, void *buf, uint16_t len) |
724 | { | |
eac6e3f0 RW |
725 | if (iev_ldpe == NULL || iev_lde == NULL) |
726 | return (0); | |
8429abe0 RW |
727 | if (imsg_compose_event(iev_ldpe, type, 0, 0, -1, buf, len) == -1) |
728 | return (-1); | |
729 | if (imsg_compose_event(iev_lde, type, 0, 0, -1, buf, len) == -1) | |
730 | return (-1); | |
731 | return (0); | |
732 | } | |
733 | ||
734 | void | |
735 | imsg_event_add(struct imsgev *iev) | |
736 | { | |
28e8294c | 737 | if (iev->handler_read) |
ffa2c898 QY |
738 | thread_add_read(master, iev->handler_read, iev, iev->ibuf.fd, |
739 | &iev->ev_read); | |
8429abe0 | 740 | |
28e8294c | 741 | if (iev->handler_write && iev->ibuf.w.queued) |
ffa2c898 QY |
742 | thread_add_write(master, iev->handler_write, iev, |
743 | iev->ibuf.fd, &iev->ev_write); | |
8429abe0 RW |
744 | } |
745 | ||
746 | int | |
747 | imsg_compose_event(struct imsgev *iev, uint16_t type, uint32_t peerid, | |
748 | pid_t pid, int fd, void *data, uint16_t datalen) | |
749 | { | |
750 | int ret; | |
751 | ||
752 | if ((ret = imsg_compose(&iev->ibuf, type, peerid, | |
753 | pid, fd, data, datalen)) != -1) | |
754 | imsg_event_add(iev); | |
755 | return (ret); | |
756 | } | |
757 | ||
758 | void | |
759 | evbuf_enqueue(struct evbuf *eb, struct ibuf *buf) | |
760 | { | |
761 | ibuf_close(&eb->wbuf, buf); | |
762 | evbuf_event_add(eb); | |
763 | } | |
764 | ||
765 | void | |
766 | evbuf_event_add(struct evbuf *eb) | |
767 | { | |
768 | if (eb->wbuf.queued) | |
ffa2c898 QY |
769 | thread_add_write(master, eb->handler, eb->arg, eb->wbuf.fd, |
770 | &eb->ev); | |
8429abe0 RW |
771 | } |
772 | ||
773 | void | |
eac6e3f0 | 774 | evbuf_init(struct evbuf *eb, int fd, int (*handler)(struct thread *), |
8429abe0 RW |
775 | void *arg) |
776 | { | |
777 | msgbuf_init(&eb->wbuf); | |
778 | eb->wbuf.fd = fd; | |
eac6e3f0 RW |
779 | eb->handler = handler; |
780 | eb->arg = arg; | |
8429abe0 RW |
781 | } |
782 | ||
783 | void | |
784 | evbuf_clear(struct evbuf *eb) | |
785 | { | |
eac6e3f0 | 786 | THREAD_WRITE_OFF(eb->ev); |
8429abe0 RW |
787 | msgbuf_clear(&eb->wbuf); |
788 | eb->wbuf.fd = -1; | |
789 | } | |
790 | ||
791 | static int | |
792 | main_imsg_send_ipc_sockets(struct imsgbuf *ldpe_buf, struct imsgbuf *lde_buf) | |
793 | { | |
794 | int pipe_ldpe2lde[2]; | |
795 | ||
eac6e3f0 | 796 | if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe_ldpe2lde) == -1) |
8429abe0 | 797 | return (-1); |
eac6e3f0 RW |
798 | sock_set_nonblock(pipe_ldpe2lde[0]); |
799 | sock_set_nonblock(pipe_ldpe2lde[1]); | |
8429abe0 RW |
800 | |
801 | if (imsg_compose(ldpe_buf, IMSG_SOCKET_IPC, 0, 0, pipe_ldpe2lde[0], | |
802 | NULL, 0) == -1) | |
803 | return (-1); | |
804 | if (imsg_compose(lde_buf, IMSG_SOCKET_IPC, 0, 0, pipe_ldpe2lde[1], | |
805 | NULL, 0) == -1) | |
806 | return (-1); | |
807 | ||
808 | return (0); | |
809 | } | |
810 | ||
811 | static void | |
812 | main_imsg_send_net_sockets(int af) | |
813 | { | |
eac6e3f0 RW |
814 | if (!ldp_addrisset(af, &(ldp_af_conf_get(ldpd_conf, af))->trans_addr)) |
815 | return; | |
816 | ||
8429abe0 RW |
817 | main_imsg_send_net_socket(af, LDP_SOCKET_DISC); |
818 | main_imsg_send_net_socket(af, LDP_SOCKET_EDISC); | |
819 | main_imsg_send_net_socket(af, LDP_SOCKET_SESSION); | |
820 | imsg_compose_event(iev_ldpe, IMSG_SETUP_SOCKETS, af, 0, -1, NULL, 0); | |
821 | } | |
822 | ||
823 | static void | |
824 | main_imsg_send_net_socket(int af, enum socket_type type) | |
825 | { | |
826 | int fd; | |
827 | ||
828 | fd = ldp_create_socket(af, type); | |
829 | if (fd == -1) { | |
830 | log_warnx("%s: failed to create %s socket for address-family " | |
831 | "%s", __func__, socket_name(type), af_name(af)); | |
832 | return; | |
833 | } | |
834 | ||
835 | imsg_compose_event(iev_ldpe, IMSG_SOCKET_NET, af, 0, fd, &type, | |
836 | sizeof(type)); | |
837 | } | |
838 | ||
45a8eba9 RW |
839 | int |
840 | ldp_acl_request(struct imsgev *iev, char *acl_name, int af, | |
841 | union ldpd_addr *addr, uint8_t prefixlen) | |
842 | { | |
843 | struct imsg imsg; | |
844 | ssize_t n; | |
845 | struct acl_check acl_check; | |
846 | ||
847 | if (acl_name[0] == '\0') | |
848 | return FILTER_PERMIT; | |
849 | ||
850 | /* build request */ | |
851 | strlcpy(acl_check.acl, acl_name, sizeof(acl_check.acl)); | |
852 | acl_check.af = af; | |
853 | acl_check.addr = *addr; | |
854 | acl_check.prefixlen = prefixlen; | |
855 | ||
856 | /* send (blocking) */ | |
857 | imsg_compose_event(iev, IMSG_ACL_CHECK, 0, 0, -1, &acl_check, | |
858 | sizeof(acl_check)); | |
859 | imsg_flush(&iev->ibuf); | |
860 | ||
861 | /* receive (blocking) and parse result */ | |
862 | if ((n = imsg_read(&iev->ibuf)) == -1) | |
863 | fatal("imsg_read error"); | |
864 | if ((n = imsg_get(&iev->ibuf, &imsg)) == -1) | |
865 | fatal("imsg_get"); | |
866 | if (imsg.hdr.type != IMSG_ACL_CHECK || | |
867 | imsg.hdr.len != IMSG_HEADER_SIZE + sizeof(int)) | |
868 | fatalx("ldp_acl_request: invalid response"); | |
869 | ||
870 | return (*((int *)imsg.data)); | |
871 | } | |
872 | ||
873 | void | |
874 | ldp_acl_reply(struct imsgev *iev, struct acl_check *acl_check) | |
875 | { | |
876 | struct access_list *alist; | |
877 | struct prefix prefix; | |
878 | int result; | |
879 | ||
880 | alist = access_list_lookup(family2afi(acl_check->af), acl_check->acl); | |
881 | if (alist == NULL) | |
882 | result = FILTER_DENY; | |
883 | else { | |
884 | prefix.family = acl_check->af; | |
885 | switch (prefix.family) { | |
886 | case AF_INET: | |
887 | prefix.u.prefix4 = acl_check->addr.v4; | |
888 | break; | |
889 | case AF_INET6: | |
890 | prefix.u.prefix6 = acl_check->addr.v6; | |
891 | break; | |
892 | default: | |
893 | fatalx("ldp_acl_reply: unknown af"); | |
894 | } | |
895 | prefix.prefixlen = acl_check->prefixlen; | |
896 | result = access_list_apply(alist, &prefix); | |
897 | } | |
898 | ||
899 | imsg_compose_event(iev, IMSG_ACL_CHECK, 0, 0, -1, &result, | |
900 | sizeof(result)); | |
901 | } | |
902 | ||
8429abe0 RW |
903 | struct ldpd_af_conf * |
904 | ldp_af_conf_get(struct ldpd_conf *xconf, int af) | |
905 | { | |
906 | switch (af) { | |
907 | case AF_INET: | |
908 | return (&xconf->ipv4); | |
909 | case AF_INET6: | |
910 | return (&xconf->ipv6); | |
911 | default: | |
912 | fatalx("ldp_af_conf_get: unknown af"); | |
913 | } | |
914 | } | |
915 | ||
916 | struct ldpd_af_global * | |
917 | ldp_af_global_get(struct ldpd_global *xglobal, int af) | |
918 | { | |
919 | switch (af) { | |
920 | case AF_INET: | |
921 | return (&xglobal->ipv4); | |
922 | case AF_INET6: | |
923 | return (&xglobal->ipv6); | |
924 | default: | |
925 | fatalx("ldp_af_global_get: unknown af"); | |
926 | } | |
927 | } | |
928 | ||
929 | int | |
930 | ldp_is_dual_stack(struct ldpd_conf *xconf) | |
931 | { | |
932 | return ((xconf->ipv4.flags & F_LDPD_AF_ENABLED) && | |
933 | (xconf->ipv6.flags & F_LDPD_AF_ENABLED)); | |
934 | } | |
935 | ||
eac6e3f0 RW |
936 | in_addr_t |
937 | ldp_rtr_id_get(struct ldpd_conf *xconf) | |
938 | { | |
939 | if (xconf->rtr_id.s_addr != INADDR_ANY) | |
940 | return (xconf->rtr_id.s_addr); | |
941 | else | |
942 | return (global.rtr_id.s_addr); | |
943 | } | |
944 | ||
8429abe0 RW |
945 | static int |
946 | main_imsg_send_config(struct ldpd_conf *xconf) | |
947 | { | |
948 | struct iface *iface; | |
949 | struct tnbr *tnbr; | |
950 | struct nbr_params *nbrp; | |
951 | struct l2vpn *l2vpn; | |
952 | struct l2vpn_if *lif; | |
953 | struct l2vpn_pw *pw; | |
954 | ||
955 | if (main_imsg_compose_both(IMSG_RECONF_CONF, xconf, | |
956 | sizeof(*xconf)) == -1) | |
957 | return (-1); | |
958 | ||
7d3d7491 | 959 | RB_FOREACH(iface, iface_head, &xconf->iface_tree) { |
8429abe0 RW |
960 | if (main_imsg_compose_both(IMSG_RECONF_IFACE, iface, |
961 | sizeof(*iface)) == -1) | |
962 | return (-1); | |
963 | } | |
964 | ||
7989cdba | 965 | RB_FOREACH(tnbr, tnbr_head, &xconf->tnbr_tree) { |
8429abe0 RW |
966 | if (main_imsg_compose_both(IMSG_RECONF_TNBR, tnbr, |
967 | sizeof(*tnbr)) == -1) | |
968 | return (-1); | |
969 | } | |
970 | ||
76c4abd1 | 971 | RB_FOREACH(nbrp, nbrp_head, &xconf->nbrp_tree) { |
8429abe0 RW |
972 | if (main_imsg_compose_both(IMSG_RECONF_NBRP, nbrp, |
973 | sizeof(*nbrp)) == -1) | |
974 | return (-1); | |
975 | } | |
976 | ||
90d7e7bd | 977 | RB_FOREACH(l2vpn, l2vpn_head, &xconf->l2vpn_tree) { |
8429abe0 RW |
978 | if (main_imsg_compose_both(IMSG_RECONF_L2VPN, l2vpn, |
979 | sizeof(*l2vpn)) == -1) | |
980 | return (-1); | |
981 | ||
029c1958 | 982 | RB_FOREACH(lif, l2vpn_if_head, &l2vpn->if_tree) { |
8429abe0 RW |
983 | if (main_imsg_compose_both(IMSG_RECONF_L2VPN_IF, lif, |
984 | sizeof(*lif)) == -1) | |
985 | return (-1); | |
986 | } | |
20bacaeb | 987 | RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_tree) { |
8429abe0 RW |
988 | if (main_imsg_compose_both(IMSG_RECONF_L2VPN_PW, pw, |
989 | sizeof(*pw)) == -1) | |
990 | return (-1); | |
991 | } | |
20bacaeb | 992 | RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_inactive_tree) { |
eac6e3f0 RW |
993 | if (main_imsg_compose_both(IMSG_RECONF_L2VPN_IPW, pw, |
994 | sizeof(*pw)) == -1) | |
995 | return (-1); | |
996 | } | |
8429abe0 RW |
997 | } |
998 | ||
999 | if (main_imsg_compose_both(IMSG_RECONF_END, NULL, 0) == -1) | |
1000 | return (-1); | |
1001 | ||
1002 | return (0); | |
1003 | } | |
1004 | ||
eac6e3f0 | 1005 | int |
e4a82008 | 1006 | ldp_config_apply(struct vty *vty, struct ldpd_conf *xconf) |
8429abe0 | 1007 | { |
e4a82008 RW |
1008 | /* |
1009 | * When reading from a configuration file (startup and sighup), we | |
1010 | * call merge_config() only once after the whole config has been read. | |
1011 | * This is the optimal and least disruptive way to update the running | |
1012 | * configuration. | |
1013 | */ | |
1014 | if (vty && vty->type == VTY_FILE) | |
dbce3582 RW |
1015 | return (0); |
1016 | ||
56b8a8d2 | 1017 | ldp_config_normalize(xconf); |
8429abe0 RW |
1018 | |
1019 | if (main_imsg_send_config(xconf) == -1) | |
1020 | return (-1); | |
1021 | ||
56b8a8d2 | 1022 | merge_config(ldpd_conf, xconf); |
8429abe0 | 1023 | |
56b8a8d2 | 1024 | return (0); |
b67c140b RW |
1025 | } |
1026 | ||
eac6e3f0 | 1027 | static void |
56b8a8d2 | 1028 | ldp_config_normalize(struct ldpd_conf *xconf) |
eac6e3f0 | 1029 | { |
7d0eeac1 RW |
1030 | struct iface *iface, *itmp; |
1031 | struct nbr_params *nbrp, *ntmp; | |
eac6e3f0 | 1032 | struct l2vpn *l2vpn; |
7d0eeac1 | 1033 | struct l2vpn_pw *pw, *ptmp; |
eac6e3f0 RW |
1034 | |
1035 | if (!(xconf->flags & F_LDPD_ENABLED)) | |
56b8a8d2 | 1036 | ldp_config_reset_main(xconf); |
eac6e3f0 RW |
1037 | else { |
1038 | if (!(xconf->ipv4.flags & F_LDPD_AF_ENABLED)) | |
56b8a8d2 | 1039 | ldp_config_reset_af(xconf, AF_INET); |
eac6e3f0 | 1040 | if (!(xconf->ipv6.flags & F_LDPD_AF_ENABLED)) |
56b8a8d2 | 1041 | ldp_config_reset_af(xconf, AF_INET6); |
eac6e3f0 | 1042 | |
7d0eeac1 RW |
1043 | RB_FOREACH_SAFE(iface, iface_head, &xconf->iface_tree, itmp) { |
1044 | if (iface->ipv4.enabled || iface->ipv6.enabled) | |
eac6e3f0 RW |
1045 | continue; |
1046 | ||
1d75a89d | 1047 | QOBJ_UNREG(iface); |
7d0eeac1 RW |
1048 | RB_REMOVE(iface_head, &vty_conf->iface_tree, iface); |
1049 | free(iface); | |
eac6e3f0 | 1050 | } |
7d0eeac1 RW |
1051 | |
1052 | RB_FOREACH_SAFE(nbrp, nbrp_head, &xconf->nbrp_tree, ntmp) { | |
1053 | if (nbrp->flags & (F_NBRP_KEEPALIVE|F_NBRP_GTSM)) | |
1054 | continue; | |
1055 | if (nbrp->auth.method != AUTH_NONE) | |
1056 | continue; | |
1057 | ||
1d75a89d | 1058 | QOBJ_UNREG(nbrp); |
7d0eeac1 RW |
1059 | RB_REMOVE(nbrp_head, &vty_conf->nbrp_tree, nbrp); |
1060 | free(nbrp); | |
1061 | } | |
1062 | } | |
1063 | ||
1064 | RB_FOREACH(l2vpn, l2vpn_head, &xconf->l2vpn_tree) { | |
1065 | RB_FOREACH_SAFE(pw, l2vpn_pw_head, &l2vpn->pw_tree, ptmp) { | |
1066 | if (!(pw->flags & F_PW_STATIC_NBR_ADDR)) { | |
1067 | pw->af = AF_INET; | |
1068 | pw->addr.v4 = pw->lsr_id; | |
1069 | } | |
1070 | ||
1071 | if (pw->lsr_id.s_addr != INADDR_ANY && pw->pwid != 0) | |
eac6e3f0 | 1072 | continue; |
7d0eeac1 RW |
1073 | RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_tree, pw); |
1074 | RB_INSERT(l2vpn_pw_head, &l2vpn->pw_inactive_tree, pw); | |
1075 | } | |
1076 | RB_FOREACH_SAFE(pw, l2vpn_pw_head, &l2vpn->pw_inactive_tree, | |
1077 | ptmp) { | |
1078 | if (!(pw->flags & F_PW_STATIC_NBR_ADDR)) { | |
1079 | pw->af = AF_INET; | |
1080 | pw->addr.v4 = pw->lsr_id; | |
1081 | } | |
eac6e3f0 | 1082 | |
7d0eeac1 RW |
1083 | if (pw->lsr_id.s_addr == INADDR_ANY || pw->pwid == 0) |
1084 | continue; | |
1085 | RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_inactive_tree, pw); | |
1086 | RB_INSERT(l2vpn_pw_head, &l2vpn->pw_tree, pw); | |
eac6e3f0 RW |
1087 | } |
1088 | } | |
1089 | } | |
1090 | ||
e4a82008 RW |
1091 | static void |
1092 | ldp_config_reset(struct ldpd_conf *conf) | |
1093 | { | |
1094 | ldp_config_reset_main(conf); | |
1095 | ldp_config_reset_l2vpns(conf); | |
1096 | } | |
1097 | ||
eac6e3f0 | 1098 | static void |
56b8a8d2 | 1099 | ldp_config_reset_main(struct ldpd_conf *conf) |
eac6e3f0 RW |
1100 | { |
1101 | struct iface *iface; | |
1102 | struct nbr_params *nbrp; | |
1103 | ||
55cd0f61 DS |
1104 | while (!RB_EMPTY(iface_head, &conf->iface_tree)) { |
1105 | iface = RB_ROOT(iface_head, &conf->iface_tree); | |
1106 | ||
1d75a89d | 1107 | QOBJ_UNREG(iface); |
7d3d7491 | 1108 | RB_REMOVE(iface_head, &conf->iface_tree, iface); |
eac6e3f0 RW |
1109 | free(iface); |
1110 | } | |
1111 | ||
55cd0f61 DS |
1112 | while (!RB_EMPTY(nbrp_head, &conf->nbrp_tree)) { |
1113 | nbrp = RB_ROOT(nbrp_head, &conf->nbrp_tree); | |
1114 | ||
1d75a89d | 1115 | QOBJ_UNREG(nbrp); |
76c4abd1 | 1116 | RB_REMOVE(nbrp_head, &conf->nbrp_tree, nbrp); |
eac6e3f0 RW |
1117 | free(nbrp); |
1118 | } | |
1119 | ||
1120 | conf->rtr_id.s_addr = INADDR_ANY; | |
56b8a8d2 RW |
1121 | ldp_config_reset_af(conf, AF_INET); |
1122 | ldp_config_reset_af(conf, AF_INET6); | |
eac6e3f0 RW |
1123 | conf->lhello_holdtime = LINK_DFLT_HOLDTIME; |
1124 | conf->lhello_interval = DEFAULT_HELLO_INTERVAL; | |
1125 | conf->thello_holdtime = TARGETED_DFLT_HOLDTIME; | |
1126 | conf->thello_interval = DEFAULT_HELLO_INTERVAL; | |
1127 | conf->trans_pref = DUAL_STACK_LDPOV6; | |
1128 | conf->flags = 0; | |
1129 | } | |
1130 | ||
1131 | static void | |
56b8a8d2 | 1132 | ldp_config_reset_af(struct ldpd_conf *conf, int af) |
eac6e3f0 RW |
1133 | { |
1134 | struct ldpd_af_conf *af_conf; | |
1135 | struct iface *iface; | |
1136 | struct iface_af *ia; | |
1137 | struct tnbr *tnbr, *ttmp; | |
1138 | ||
7d3d7491 | 1139 | RB_FOREACH(iface, iface_head, &conf->iface_tree) { |
eac6e3f0 RW |
1140 | ia = iface_af_get(iface, af); |
1141 | ia->enabled = 0; | |
1142 | } | |
1143 | ||
7989cdba | 1144 | RB_FOREACH_SAFE(tnbr, tnbr_head, &conf->tnbr_tree, ttmp) { |
eac6e3f0 RW |
1145 | if (tnbr->af != af) |
1146 | continue; | |
1147 | ||
1d75a89d | 1148 | QOBJ_UNREG(tnbr); |
7989cdba | 1149 | RB_REMOVE(tnbr_head, &conf->tnbr_tree, tnbr); |
eac6e3f0 RW |
1150 | free(tnbr); |
1151 | } | |
1152 | ||
1153 | af_conf = ldp_af_conf_get(conf, af); | |
1154 | af_conf->keepalive = 180; | |
1155 | af_conf->lhello_holdtime = 0; | |
1156 | af_conf->lhello_interval = 0; | |
1157 | af_conf->thello_holdtime = 0; | |
1158 | af_conf->thello_interval = 0; | |
1159 | memset(&af_conf->trans_addr, 0, sizeof(af_conf->trans_addr)); | |
1160 | af_conf->flags = 0; | |
1161 | } | |
1162 | ||
1d75a89d RW |
1163 | static void |
1164 | ldp_config_reset_l2vpns(struct ldpd_conf *conf) | |
eac6e3f0 | 1165 | { |
1d75a89d RW |
1166 | struct l2vpn *l2vpn; |
1167 | struct l2vpn_if *lif; | |
1168 | struct l2vpn_pw *pw; | |
eac6e3f0 | 1169 | |
55cd0f61 DS |
1170 | while (!RB_EMPTY(l2vpn_head, &conf->l2vpn_tree)) { |
1171 | l2vpn = RB_ROOT(l2vpn_head, &conf->l2vpn_tree); | |
1172 | while (!RB_EMPTY(l2vpn_if_head, &l2vpn->if_tree)) { | |
1173 | lif = RB_ROOT(l2vpn_if_head, &l2vpn->if_tree); | |
1174 | ||
1d75a89d RW |
1175 | QOBJ_UNREG(lif); |
1176 | RB_REMOVE(l2vpn_if_head, &l2vpn->if_tree, lif); | |
1177 | free(lif); | |
eac6e3f0 | 1178 | } |
55cd0f61 DS |
1179 | while (!RB_EMPTY(l2vpn_pw_head, &l2vpn->pw_tree)) { |
1180 | pw = RB_ROOT(l2vpn_pw_head, &l2vpn->pw_tree); | |
1181 | ||
1d75a89d RW |
1182 | QOBJ_UNREG(pw); |
1183 | RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_tree, pw); | |
1184 | free(pw); | |
eac6e3f0 | 1185 | } |
55cd0f61 DS |
1186 | while (!RB_EMPTY(l2vpn_pw_head, &l2vpn->pw_inactive_tree)) { |
1187 | pw = RB_ROOT(l2vpn_pw_head, &l2vpn->pw_inactive_tree); | |
1188 | ||
1d75a89d RW |
1189 | QOBJ_UNREG(pw); |
1190 | RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_inactive_tree, pw); | |
1191 | free(pw); | |
eac6e3f0 | 1192 | } |
1d75a89d RW |
1193 | QOBJ_UNREG(l2vpn); |
1194 | RB_REMOVE(l2vpn_head, &conf->l2vpn_tree, l2vpn); | |
1195 | free(l2vpn); | |
eac6e3f0 | 1196 | } |
eac6e3f0 RW |
1197 | } |
1198 | ||
1199 | void | |
1200 | ldp_clear_config(struct ldpd_conf *xconf) | |
1201 | { | |
1202 | struct iface *iface; | |
1203 | struct tnbr *tnbr; | |
1204 | struct nbr_params *nbrp; | |
1205 | struct l2vpn *l2vpn; | |
1206 | ||
55cd0f61 DS |
1207 | while (!RB_EMPTY(iface_head, &xconf->iface_tree)) { |
1208 | iface = RB_ROOT(iface_head, &xconf->iface_tree); | |
1209 | ||
7d3d7491 | 1210 | RB_REMOVE(iface_head, &xconf->iface_tree, iface); |
eac6e3f0 RW |
1211 | free(iface); |
1212 | } | |
55cd0f61 DS |
1213 | while (!RB_EMPTY(tnbr_head, &xconf->tnbr_tree)) { |
1214 | tnbr = RB_ROOT(tnbr_head, &xconf->tnbr_tree); | |
1215 | ||
7989cdba | 1216 | RB_REMOVE(tnbr_head, &xconf->tnbr_tree, tnbr); |
eac6e3f0 RW |
1217 | free(tnbr); |
1218 | } | |
55cd0f61 DS |
1219 | while (!RB_EMPTY(nbrp_head, &xconf->nbrp_tree)) { |
1220 | nbrp = RB_ROOT(nbrp_head, &xconf->nbrp_tree); | |
1221 | ||
76c4abd1 | 1222 | RB_REMOVE(nbrp_head, &xconf->nbrp_tree, nbrp); |
eac6e3f0 RW |
1223 | free(nbrp); |
1224 | } | |
55cd0f61 DS |
1225 | while (!RB_EMPTY(l2vpn_head, &xconf->l2vpn_tree)) { |
1226 | l2vpn = RB_ROOT(l2vpn_head, &xconf->l2vpn_tree); | |
1227 | ||
90d7e7bd | 1228 | RB_REMOVE(l2vpn_head, &xconf->l2vpn_tree, l2vpn); |
eac6e3f0 RW |
1229 | l2vpn_del(l2vpn); |
1230 | } | |
1231 | ||
1232 | free(xconf); | |
1233 | } | |
1234 | ||
1d75a89d RW |
1235 | #define COPY(a, b) do { \ |
1236 | a = malloc(sizeof(*a)); \ | |
1237 | if (a == NULL) \ | |
1238 | fatal(__func__); \ | |
1239 | *a = *b; \ | |
1240 | } while (0) | |
1241 | ||
56b8a8d2 RW |
1242 | void |
1243 | merge_config(struct ldpd_conf *conf, struct ldpd_conf *xconf) | |
8429abe0 RW |
1244 | { |
1245 | merge_global(conf, xconf); | |
1246 | merge_af(AF_INET, &conf->ipv4, &xconf->ipv4); | |
1247 | merge_af(AF_INET6, &conf->ipv6, &xconf->ipv6); | |
56b8a8d2 RW |
1248 | merge_ifaces(conf, xconf); |
1249 | merge_tnbrs(conf, xconf); | |
1250 | merge_nbrps(conf, xconf); | |
1251 | merge_l2vpns(conf, xconf); | |
8429abe0 RW |
1252 | } |
1253 | ||
1254 | static void | |
1255 | merge_global(struct ldpd_conf *conf, struct ldpd_conf *xconf) | |
1256 | { | |
1257 | /* change of router-id requires resetting all neighborships */ | |
1258 | if (conf->rtr_id.s_addr != xconf->rtr_id.s_addr) { | |
1259 | if (ldpd_process == PROC_LDP_ENGINE) { | |
45a8eba9 | 1260 | ldpe_reset_nbrs(AF_UNSPEC); |
8429abe0 RW |
1261 | if (conf->rtr_id.s_addr == INADDR_ANY || |
1262 | xconf->rtr_id.s_addr == INADDR_ANY) { | |
1263 | if_update_all(AF_UNSPEC); | |
1264 | tnbr_update_all(AF_UNSPEC); | |
1265 | } | |
1266 | } | |
1267 | conf->rtr_id = xconf->rtr_id; | |
1268 | } | |
1269 | ||
eac6e3f0 RW |
1270 | conf->lhello_holdtime = xconf->lhello_holdtime; |
1271 | conf->lhello_interval = xconf->lhello_interval; | |
1272 | conf->thello_holdtime = xconf->thello_holdtime; | |
1273 | conf->thello_interval = xconf->thello_interval; | |
1274 | ||
8429abe0 RW |
1275 | if (conf->trans_pref != xconf->trans_pref) { |
1276 | if (ldpd_process == PROC_LDP_ENGINE) | |
1277 | ldpe_reset_ds_nbrs(); | |
1278 | conf->trans_pref = xconf->trans_pref; | |
1279 | } | |
1280 | ||
1281 | if ((conf->flags & F_LDPD_DS_CISCO_INTEROP) != | |
1282 | (xconf->flags & F_LDPD_DS_CISCO_INTEROP)) { | |
1283 | if (ldpd_process == PROC_LDP_ENGINE) | |
1284 | ldpe_reset_ds_nbrs(); | |
1285 | } | |
1286 | ||
1287 | conf->flags = xconf->flags; | |
1288 | } | |
1289 | ||
1290 | static void | |
1291 | merge_af(int af, struct ldpd_af_conf *af_conf, struct ldpd_af_conf *xa) | |
1292 | { | |
45a8eba9 RW |
1293 | int stop_init_backoff = 0; |
1294 | int remove_dynamic_tnbrs = 0; | |
1295 | int change_egress_label = 0; | |
1296 | int reset_nbrs_ipv4 = 0; | |
1297 | int reset_nbrs = 0; | |
1298 | int update_sockets = 0; | |
1299 | ||
1300 | /* update timers */ | |
8429abe0 RW |
1301 | if (af_conf->keepalive != xa->keepalive) { |
1302 | af_conf->keepalive = xa->keepalive; | |
45a8eba9 | 1303 | stop_init_backoff = 1; |
8429abe0 | 1304 | } |
eac6e3f0 RW |
1305 | af_conf->lhello_holdtime = xa->lhello_holdtime; |
1306 | af_conf->lhello_interval = xa->lhello_interval; | |
8429abe0 RW |
1307 | af_conf->thello_holdtime = xa->thello_holdtime; |
1308 | af_conf->thello_interval = xa->thello_interval; | |
1309 | ||
1310 | /* update flags */ | |
45a8eba9 | 1311 | if ((af_conf->flags & F_LDPD_AF_THELLO_ACCEPT) && |
8429abe0 | 1312 | !(xa->flags & F_LDPD_AF_THELLO_ACCEPT)) |
45a8eba9 | 1313 | remove_dynamic_tnbrs = 1; |
8429abe0 RW |
1314 | if ((af_conf->flags & F_LDPD_AF_NO_GTSM) != |
1315 | (xa->flags & F_LDPD_AF_NO_GTSM)) { | |
1316 | if (af == AF_INET6) | |
1317 | /* need to set/unset IPV6_MINHOPCOUNT */ | |
1318 | update_sockets = 1; | |
45a8eba9 | 1319 | else |
8429abe0 | 1320 | /* for LDPv4 just resetting the neighbors is enough */ |
45a8eba9 | 1321 | reset_nbrs_ipv4 = 1; |
8429abe0 | 1322 | } |
8429abe0 RW |
1323 | if ((af_conf->flags & F_LDPD_AF_EXPNULL) != |
1324 | (xa->flags & F_LDPD_AF_EXPNULL)) | |
45a8eba9 | 1325 | change_egress_label = 1; |
8429abe0 RW |
1326 | af_conf->flags = xa->flags; |
1327 | ||
45a8eba9 | 1328 | /* update the transport address */ |
8429abe0 RW |
1329 | if (ldp_addrcmp(af, &af_conf->trans_addr, &xa->trans_addr)) { |
1330 | af_conf->trans_addr = xa->trans_addr; | |
1331 | update_sockets = 1; | |
1332 | } | |
1333 | ||
45a8eba9 RW |
1334 | /* update ACLs */ |
1335 | if (strcmp(af_conf->acl_label_advertise_to, | |
1336 | xa->acl_label_advertise_to) || | |
1337 | strcmp(af_conf->acl_label_advertise_for, | |
1338 | xa->acl_label_advertise_for) || | |
1339 | strcmp(af_conf->acl_label_accept_from, | |
1340 | xa->acl_label_accept_from) || | |
1341 | strcmp(af_conf->acl_label_accept_for, | |
1342 | xa->acl_label_accept_for)) | |
1343 | reset_nbrs = 1; | |
1344 | if (strcmp(af_conf->acl_thello_accept_from, xa->acl_thello_accept_from)) | |
1345 | remove_dynamic_tnbrs = 1; | |
1346 | if (strcmp(af_conf->acl_label_expnull_for, xa->acl_label_expnull_for)) | |
1347 | change_egress_label = 1; | |
1348 | strlcpy(af_conf->acl_thello_accept_from, xa->acl_thello_accept_from, | |
1349 | sizeof(af_conf->acl_thello_accept_from)); | |
1350 | strlcpy(af_conf->acl_label_allocate_for, xa->acl_label_allocate_for, | |
1351 | sizeof(af_conf->acl_label_allocate_for)); | |
1352 | strlcpy(af_conf->acl_label_advertise_to, xa->acl_label_advertise_to, | |
1353 | sizeof(af_conf->acl_label_advertise_to)); | |
1354 | strlcpy(af_conf->acl_label_advertise_for, xa->acl_label_advertise_for, | |
1355 | sizeof(af_conf->acl_label_advertise_for)); | |
1356 | strlcpy(af_conf->acl_label_accept_from, xa->acl_label_accept_from, | |
1357 | sizeof(af_conf->acl_label_accept_from)); | |
1358 | strlcpy(af_conf->acl_label_accept_for, xa->acl_label_accept_for, | |
1359 | sizeof(af_conf->acl_label_accept_for)); | |
1360 | strlcpy(af_conf->acl_label_expnull_for, xa->acl_label_expnull_for, | |
1361 | sizeof(af_conf->acl_label_expnull_for)); | |
1362 | ||
1363 | /* apply the new configuration */ | |
1364 | switch (ldpd_process) { | |
1365 | case PROC_LDE_ENGINE: | |
1366 | if (change_egress_label) | |
1367 | lde_change_egress_label(af); | |
1368 | break; | |
1369 | case PROC_LDP_ENGINE: | |
1370 | if (stop_init_backoff) | |
1371 | ldpe_stop_init_backoff(af); | |
1372 | if (remove_dynamic_tnbrs) | |
1373 | ldpe_remove_dynamic_tnbrs(af); | |
1374 | if (reset_nbrs) | |
1375 | ldpe_reset_nbrs(AF_UNSPEC); | |
1376 | else if (reset_nbrs_ipv4) | |
1377 | ldpe_reset_nbrs(AF_INET); | |
1378 | break; | |
1379 | case PROC_MAIN: | |
1380 | if (update_sockets && iev_ldpe) | |
1381 | imsg_compose_event(iev_ldpe, IMSG_CLOSE_SOCKETS, af, | |
1382 | 0, -1, NULL, 0); | |
1383 | break; | |
1384 | } | |
8429abe0 RW |
1385 | } |
1386 | ||
1387 | static void | |
56b8a8d2 | 1388 | merge_ifaces(struct ldpd_conf *conf, struct ldpd_conf *xconf) |
8429abe0 RW |
1389 | { |
1390 | struct iface *iface, *itmp, *xi; | |
1391 | ||
7d3d7491 | 1392 | RB_FOREACH_SAFE(iface, iface_head, &conf->iface_tree, itmp) { |
8429abe0 | 1393 | /* find deleted interfaces */ |
eac6e3f0 | 1394 | if ((xi = if_lookup_name(xconf, iface->name)) == NULL) { |
4af8997d | 1395 | switch (ldpd_process) { |
4af8997d | 1396 | case PROC_LDP_ENGINE: |
1d75a89d | 1397 | ldpe_if_exit(iface); |
4af8997d | 1398 | break; |
1d75a89d | 1399 | case PROC_LDE_ENGINE: |
4af8997d | 1400 | case PROC_MAIN: |
4af8997d RW |
1401 | break; |
1402 | } | |
1d75a89d | 1403 | RB_REMOVE(iface_head, &conf->iface_tree, iface); |
8429abe0 RW |
1404 | free(iface); |
1405 | } | |
1406 | } | |
7d3d7491 | 1407 | RB_FOREACH_SAFE(xi, iface_head, &xconf->iface_tree, itmp) { |
8429abe0 | 1408 | /* find new interfaces */ |
eac6e3f0 | 1409 | if ((iface = if_lookup_name(conf, xi->name)) == NULL) { |
1d75a89d RW |
1410 | COPY(iface, xi); |
1411 | RB_INSERT(iface_head, &conf->iface_tree, iface); | |
8429abe0 | 1412 | |
1d75a89d RW |
1413 | switch (ldpd_process) { |
1414 | case PROC_LDP_ENGINE: | |
1415 | ldpe_if_init(iface); | |
1416 | break; | |
1417 | case PROC_LDE_ENGINE: | |
1418 | break; | |
1419 | case PROC_MAIN: | |
4af8997d | 1420 | /* resend addresses to activate new interfaces */ |
1d75a89d RW |
1421 | kif_redistribute(iface->name); |
1422 | break; | |
4af8997d | 1423 | } |
8429abe0 RW |
1424 | continue; |
1425 | } | |
1426 | ||
1427 | /* update existing interfaces */ | |
1428 | merge_iface_af(&iface->ipv4, &xi->ipv4); | |
1429 | merge_iface_af(&iface->ipv6, &xi->ipv6); | |
8429abe0 RW |
1430 | } |
1431 | } | |
1432 | ||
1433 | static void | |
1434 | merge_iface_af(struct iface_af *ia, struct iface_af *xi) | |
1435 | { | |
1436 | if (ia->enabled != xi->enabled) { | |
1437 | ia->enabled = xi->enabled; | |
1438 | if (ldpd_process == PROC_LDP_ENGINE) | |
61cd1100 | 1439 | ldp_if_update(ia->iface, ia->af); |
8429abe0 RW |
1440 | } |
1441 | ia->hello_holdtime = xi->hello_holdtime; | |
1442 | ia->hello_interval = xi->hello_interval; | |
1443 | } | |
1444 | ||
1445 | static void | |
56b8a8d2 | 1446 | merge_tnbrs(struct ldpd_conf *conf, struct ldpd_conf *xconf) |
8429abe0 RW |
1447 | { |
1448 | struct tnbr *tnbr, *ttmp, *xt; | |
1449 | ||
7989cdba | 1450 | RB_FOREACH_SAFE(tnbr, tnbr_head, &conf->tnbr_tree, ttmp) { |
8429abe0 RW |
1451 | if (!(tnbr->flags & F_TNBR_CONFIGURED)) |
1452 | continue; | |
1453 | ||
1454 | /* find deleted tnbrs */ | |
1455 | if ((xt = tnbr_find(xconf, tnbr->af, &tnbr->addr)) == NULL) { | |
4af8997d | 1456 | switch (ldpd_process) { |
4af8997d | 1457 | case PROC_LDP_ENGINE: |
8429abe0 | 1458 | tnbr->flags &= ~F_TNBR_CONFIGURED; |
7989cdba | 1459 | tnbr_check(conf, tnbr); |
4af8997d | 1460 | break; |
1d75a89d | 1461 | case PROC_LDE_ENGINE: |
4af8997d | 1462 | case PROC_MAIN: |
7989cdba | 1463 | RB_REMOVE(tnbr_head, &conf->tnbr_tree, tnbr); |
8429abe0 | 1464 | free(tnbr); |
4af8997d | 1465 | break; |
8429abe0 RW |
1466 | } |
1467 | } | |
1468 | } | |
7989cdba | 1469 | RB_FOREACH_SAFE(xt, tnbr_head, &xconf->tnbr_tree, ttmp) { |
8429abe0 RW |
1470 | /* find new tnbrs */ |
1471 | if ((tnbr = tnbr_find(conf, xt->af, &xt->addr)) == NULL) { | |
1d75a89d RW |
1472 | COPY(tnbr, xt); |
1473 | RB_INSERT(tnbr_head, &conf->tnbr_tree, tnbr); | |
8429abe0 | 1474 | |
4af8997d | 1475 | switch (ldpd_process) { |
4af8997d | 1476 | case PROC_LDP_ENGINE: |
1d75a89d | 1477 | tnbr_update(tnbr); |
4af8997d | 1478 | break; |
1d75a89d | 1479 | case PROC_LDE_ENGINE: |
4af8997d | 1480 | case PROC_MAIN: |
4af8997d RW |
1481 | break; |
1482 | } | |
8429abe0 RW |
1483 | continue; |
1484 | } | |
1485 | ||
1486 | /* update existing tnbrs */ | |
1487 | if (!(tnbr->flags & F_TNBR_CONFIGURED)) | |
1488 | tnbr->flags |= F_TNBR_CONFIGURED; | |
8429abe0 RW |
1489 | } |
1490 | } | |
1491 | ||
1492 | static void | |
56b8a8d2 | 1493 | merge_nbrps(struct ldpd_conf *conf, struct ldpd_conf *xconf) |
8429abe0 RW |
1494 | { |
1495 | struct nbr_params *nbrp, *ntmp, *xn; | |
1496 | struct nbr *nbr; | |
1497 | int nbrp_changed; | |
1498 | ||
76c4abd1 | 1499 | RB_FOREACH_SAFE(nbrp, nbrp_head, &conf->nbrp_tree, ntmp) { |
8429abe0 RW |
1500 | /* find deleted nbrps */ |
1501 | if ((xn = nbr_params_find(xconf, nbrp->lsr_id)) == NULL) { | |
4af8997d | 1502 | switch (ldpd_process) { |
4af8997d | 1503 | case PROC_LDP_ENGINE: |
8429abe0 RW |
1504 | nbr = nbr_find_ldpid(nbrp->lsr_id.s_addr); |
1505 | if (nbr) { | |
1506 | session_shutdown(nbr, S_SHUTDOWN, 0, 0); | |
eac6e3f0 | 1507 | #ifdef __OpenBSD__ |
8429abe0 | 1508 | pfkey_remove(nbr); |
eac6e3f0 RW |
1509 | #else |
1510 | sock_set_md5sig( | |
1511 | (ldp_af_global_get(&global, | |
1512 | nbr->af))->ldp_session_socket, | |
1513 | nbr->af, &nbr->raddr, NULL); | |
1514 | #endif | |
0f7b5df9 | 1515 | nbr->auth.method = AUTH_NONE; |
8429abe0 RW |
1516 | if (nbr_session_active_role(nbr)) |
1517 | nbr_establish_connection(nbr); | |
1518 | } | |
4af8997d | 1519 | break; |
1d75a89d | 1520 | case PROC_LDE_ENGINE: |
4af8997d | 1521 | case PROC_MAIN: |
4af8997d | 1522 | break; |
8429abe0 | 1523 | } |
76c4abd1 | 1524 | RB_REMOVE(nbrp_head, &conf->nbrp_tree, nbrp); |
8429abe0 RW |
1525 | free(nbrp); |
1526 | } | |
1527 | } | |
76c4abd1 | 1528 | RB_FOREACH_SAFE(xn, nbrp_head, &xconf->nbrp_tree, ntmp) { |
8429abe0 RW |
1529 | /* find new nbrps */ |
1530 | if ((nbrp = nbr_params_find(conf, xn->lsr_id)) == NULL) { | |
1d75a89d RW |
1531 | COPY(nbrp, xn); |
1532 | RB_INSERT(nbrp_head, &conf->nbrp_tree, nbrp); | |
8429abe0 | 1533 | |
4af8997d | 1534 | switch (ldpd_process) { |
4af8997d | 1535 | case PROC_LDP_ENGINE: |
1d75a89d | 1536 | nbr = nbr_find_ldpid(nbrp->lsr_id.s_addr); |
8429abe0 RW |
1537 | if (nbr) { |
1538 | session_shutdown(nbr, S_SHUTDOWN, 0, 0); | |
1d75a89d | 1539 | nbr->auth.method = nbrp->auth.method; |
eac6e3f0 | 1540 | #ifdef __OpenBSD__ |
1d75a89d | 1541 | if (pfkey_establish(nbr, nbrp) == -1) |
8429abe0 | 1542 | fatalx("pfkey setup failed"); |
eac6e3f0 RW |
1543 | #else |
1544 | sock_set_md5sig( | |
1545 | (ldp_af_global_get(&global, | |
1546 | nbr->af))->ldp_session_socket, | |
1547 | nbr->af, &nbr->raddr, | |
1d75a89d | 1548 | nbrp->auth.md5key); |
eac6e3f0 | 1549 | #endif |
8429abe0 RW |
1550 | if (nbr_session_active_role(nbr)) |
1551 | nbr_establish_connection(nbr); | |
1552 | } | |
4af8997d | 1553 | break; |
1d75a89d | 1554 | case PROC_LDE_ENGINE: |
4af8997d | 1555 | case PROC_MAIN: |
4af8997d | 1556 | break; |
8429abe0 RW |
1557 | } |
1558 | continue; | |
1559 | } | |
1560 | ||
1561 | /* update existing nbrps */ | |
1562 | if (nbrp->flags != xn->flags || | |
1563 | nbrp->keepalive != xn->keepalive || | |
1564 | nbrp->gtsm_enabled != xn->gtsm_enabled || | |
1565 | nbrp->gtsm_hops != xn->gtsm_hops || | |
1566 | nbrp->auth.method != xn->auth.method || | |
1567 | strcmp(nbrp->auth.md5key, xn->auth.md5key) != 0) | |
1568 | nbrp_changed = 1; | |
1569 | else | |
1570 | nbrp_changed = 0; | |
1571 | ||
1572 | nbrp->keepalive = xn->keepalive; | |
1573 | nbrp->gtsm_enabled = xn->gtsm_enabled; | |
1574 | nbrp->gtsm_hops = xn->gtsm_hops; | |
1575 | nbrp->auth.method = xn->auth.method; | |
1576 | strlcpy(nbrp->auth.md5key, xn->auth.md5key, | |
1577 | sizeof(nbrp->auth.md5key)); | |
1578 | nbrp->auth.md5key_len = xn->auth.md5key_len; | |
1579 | nbrp->flags = xn->flags; | |
1580 | ||
1581 | if (ldpd_process == PROC_LDP_ENGINE) { | |
1582 | nbr = nbr_find_ldpid(nbrp->lsr_id.s_addr); | |
1583 | if (nbr && nbrp_changed) { | |
1584 | session_shutdown(nbr, S_SHUTDOWN, 0, 0); | |
eac6e3f0 | 1585 | #ifdef __OpenBSD__ |
8429abe0 | 1586 | pfkey_remove(nbr); |
0f7b5df9 | 1587 | nbr->auth.method = nbrp->auth.method; |
8429abe0 RW |
1588 | if (pfkey_establish(nbr, nbrp) == -1) |
1589 | fatalx("pfkey setup failed"); | |
eac6e3f0 | 1590 | #else |
0f7b5df9 | 1591 | nbr->auth.method = nbrp->auth.method; |
eac6e3f0 RW |
1592 | sock_set_md5sig((ldp_af_global_get(&global, |
1593 | nbr->af))->ldp_session_socket, nbr->af, | |
1594 | &nbr->raddr, nbrp->auth.md5key); | |
1595 | #endif | |
8429abe0 RW |
1596 | if (nbr_session_active_role(nbr)) |
1597 | nbr_establish_connection(nbr); | |
1598 | } | |
1599 | } | |
8429abe0 RW |
1600 | } |
1601 | } | |
1602 | ||
1603 | static void | |
56b8a8d2 | 1604 | merge_l2vpns(struct ldpd_conf *conf, struct ldpd_conf *xconf) |
8429abe0 RW |
1605 | { |
1606 | struct l2vpn *l2vpn, *ltmp, *xl; | |
1607 | ||
90d7e7bd | 1608 | RB_FOREACH_SAFE(l2vpn, l2vpn_head, &conf->l2vpn_tree, ltmp) { |
8429abe0 RW |
1609 | /* find deleted l2vpns */ |
1610 | if ((xl = l2vpn_find(xconf, l2vpn->name)) == NULL) { | |
8429abe0 RW |
1611 | switch (ldpd_process) { |
1612 | case PROC_LDE_ENGINE: | |
1613 | l2vpn_exit(l2vpn); | |
1614 | break; | |
1615 | case PROC_LDP_ENGINE: | |
1616 | ldpe_l2vpn_exit(l2vpn); | |
1617 | break; | |
1618 | case PROC_MAIN: | |
1619 | break; | |
1620 | } | |
1d75a89d | 1621 | RB_REMOVE(l2vpn_head, &conf->l2vpn_tree, l2vpn); |
8429abe0 RW |
1622 | l2vpn_del(l2vpn); |
1623 | } | |
1624 | } | |
90d7e7bd | 1625 | RB_FOREACH_SAFE(xl, l2vpn_head, &xconf->l2vpn_tree, ltmp) { |
8429abe0 RW |
1626 | /* find new l2vpns */ |
1627 | if ((l2vpn = l2vpn_find(conf, xl->name)) == NULL) { | |
1d75a89d RW |
1628 | COPY(l2vpn, xl); |
1629 | RB_INSERT(l2vpn_head, &conf->l2vpn_tree, l2vpn); | |
45926e58 RZ |
1630 | RB_INIT(l2vpn_if_head, &l2vpn->if_tree); |
1631 | RB_INIT(l2vpn_pw_head, &l2vpn->pw_tree); | |
1632 | RB_INIT(l2vpn_pw_head, &l2vpn->pw_inactive_tree); | |
8429abe0 RW |
1633 | |
1634 | switch (ldpd_process) { | |
1635 | case PROC_LDE_ENGINE: | |
1d75a89d | 1636 | l2vpn_init(l2vpn); |
8429abe0 RW |
1637 | break; |
1638 | case PROC_LDP_ENGINE: | |
1d75a89d | 1639 | ldpe_l2vpn_init(l2vpn); |
8429abe0 RW |
1640 | break; |
1641 | case PROC_MAIN: | |
1642 | break; | |
1643 | } | |
8429abe0 RW |
1644 | } |
1645 | ||
1646 | /* update existing l2vpns */ | |
56b8a8d2 | 1647 | merge_l2vpn(conf, l2vpn, xl); |
8429abe0 RW |
1648 | } |
1649 | } | |
1650 | ||
1651 | static void | |
56b8a8d2 | 1652 | merge_l2vpn(struct ldpd_conf *xconf, struct l2vpn *l2vpn, struct l2vpn *xl) |
8429abe0 RW |
1653 | { |
1654 | struct l2vpn_if *lif, *ftmp, *xf; | |
1655 | struct l2vpn_pw *pw, *ptmp, *xp; | |
1656 | struct nbr *nbr; | |
1657 | int reset_nbr, reinstall_pwfec, reinstall_tnbr; | |
1658 | int previous_pw_type, previous_mtu; | |
1659 | ||
1660 | previous_pw_type = l2vpn->pw_type; | |
1661 | previous_mtu = l2vpn->mtu; | |
1662 | ||
1663 | /* merge intefaces */ | |
029c1958 | 1664 | RB_FOREACH_SAFE(lif, l2vpn_if_head, &l2vpn->if_tree, ftmp) { |
8429abe0 | 1665 | /* find deleted interfaces */ |
52bd4c23 | 1666 | if ((xf = l2vpn_if_find(xl, lif->ifname)) == NULL) { |
029c1958 | 1667 | RB_REMOVE(l2vpn_if_head, &l2vpn->if_tree, lif); |
8429abe0 RW |
1668 | free(lif); |
1669 | } | |
1670 | } | |
029c1958 | 1671 | RB_FOREACH_SAFE(xf, l2vpn_if_head, &xl->if_tree, ftmp) { |
8429abe0 | 1672 | /* find new interfaces */ |
52bd4c23 | 1673 | if ((lif = l2vpn_if_find(l2vpn, xf->ifname)) == NULL) { |
1d75a89d RW |
1674 | COPY(lif, xf); |
1675 | RB_INSERT(l2vpn_if_head, &l2vpn->if_tree, lif); | |
1676 | lif->l2vpn = l2vpn; | |
1677 | ||
1678 | switch (ldpd_process) { | |
1679 | case PROC_LDP_ENGINE: | |
1680 | case PROC_LDE_ENGINE: | |
1681 | break; | |
1682 | case PROC_MAIN: | |
1683 | kif_redistribute(lif->ifname); | |
1684 | break; | |
52b530fc | 1685 | } |
8429abe0 | 1686 | } |
8429abe0 RW |
1687 | } |
1688 | ||
eac6e3f0 | 1689 | /* merge active pseudowires */ |
20bacaeb | 1690 | RB_FOREACH_SAFE(pw, l2vpn_pw_head, &l2vpn->pw_tree, ptmp) { |
eac6e3f0 | 1691 | /* find deleted active pseudowires */ |
5c3f00af | 1692 | if ((xp = l2vpn_pw_find_active(xl, pw->ifname)) == NULL) { |
8429abe0 RW |
1693 | switch (ldpd_process) { |
1694 | case PROC_LDE_ENGINE: | |
1695 | l2vpn_pw_exit(pw); | |
1696 | break; | |
1697 | case PROC_LDP_ENGINE: | |
1698 | ldpe_l2vpn_pw_exit(pw); | |
1699 | break; | |
1700 | case PROC_MAIN: | |
1701 | break; | |
1702 | } | |
1703 | ||
20bacaeb | 1704 | RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_tree, pw); |
8429abe0 RW |
1705 | free(pw); |
1706 | } | |
1707 | } | |
20bacaeb | 1708 | RB_FOREACH_SAFE(xp, l2vpn_pw_head, &xl->pw_tree, ptmp) { |
eac6e3f0 | 1709 | /* find new active pseudowires */ |
5c3f00af | 1710 | if ((pw = l2vpn_pw_find_active(l2vpn, xp->ifname)) == NULL) { |
1d75a89d RW |
1711 | COPY(pw, xp); |
1712 | RB_INSERT(l2vpn_pw_head, &l2vpn->pw_tree, pw); | |
1713 | pw->l2vpn = l2vpn; | |
8429abe0 RW |
1714 | |
1715 | switch (ldpd_process) { | |
1716 | case PROC_LDE_ENGINE: | |
1d75a89d | 1717 | l2vpn_pw_init(pw); |
8429abe0 RW |
1718 | break; |
1719 | case PROC_LDP_ENGINE: | |
1d75a89d | 1720 | ldpe_l2vpn_pw_init(pw); |
8429abe0 RW |
1721 | break; |
1722 | case PROC_MAIN: | |
1d75a89d | 1723 | kif_redistribute(pw->ifname); |
8429abe0 RW |
1724 | break; |
1725 | } | |
1726 | continue; | |
1727 | } | |
1728 | ||
eac6e3f0 | 1729 | /* update existing active pseudowire */ |
8429abe0 RW |
1730 | if (pw->af != xp->af || |
1731 | ldp_addrcmp(pw->af, &pw->addr, &xp->addr)) | |
1732 | reinstall_tnbr = 1; | |
1733 | else | |
1734 | reinstall_tnbr = 0; | |
1735 | ||
1736 | /* changes that require a session restart */ | |
1737 | if ((pw->flags & (F_PW_STATUSTLV_CONF|F_PW_CWORD_CONF)) != | |
1738 | (xp->flags & (F_PW_STATUSTLV_CONF|F_PW_CWORD_CONF))) | |
1739 | reset_nbr = 1; | |
1740 | else | |
1741 | reset_nbr = 0; | |
1742 | ||
1743 | if (l2vpn->pw_type != xl->pw_type || l2vpn->mtu != xl->mtu || | |
1744 | pw->pwid != xp->pwid || reinstall_tnbr || reset_nbr || | |
1745 | pw->lsr_id.s_addr != xp->lsr_id.s_addr) | |
1746 | reinstall_pwfec = 1; | |
1747 | else | |
1748 | reinstall_pwfec = 0; | |
1749 | ||
1750 | if (ldpd_process == PROC_LDP_ENGINE) { | |
1751 | if (reinstall_tnbr) | |
1752 | ldpe_l2vpn_pw_exit(pw); | |
1753 | if (reset_nbr) { | |
1754 | nbr = nbr_find_ldpid(pw->lsr_id.s_addr); | |
1755 | if (nbr && nbr->state == NBR_STA_OPER) | |
1756 | session_shutdown(nbr, S_SHUTDOWN, 0, 0); | |
1757 | } | |
1758 | } | |
be0fbdeb | 1759 | if (ldpd_process == PROC_LDE_ENGINE && reinstall_pwfec) |
8429abe0 RW |
1760 | l2vpn_pw_exit(pw); |
1761 | pw->lsr_id = xp->lsr_id; | |
1762 | pw->af = xp->af; | |
1763 | pw->addr = xp->addr; | |
1764 | pw->pwid = xp->pwid; | |
1765 | strlcpy(pw->ifname, xp->ifname, sizeof(pw->ifname)); | |
1766 | pw->ifindex = xp->ifindex; | |
1767 | if (xp->flags & F_PW_CWORD_CONF) | |
1768 | pw->flags |= F_PW_CWORD_CONF; | |
1769 | else | |
1770 | pw->flags &= ~F_PW_CWORD_CONF; | |
1771 | if (xp->flags & F_PW_STATUSTLV_CONF) | |
1772 | pw->flags |= F_PW_STATUSTLV_CONF; | |
1773 | else | |
1774 | pw->flags &= ~F_PW_STATUSTLV_CONF; | |
eac6e3f0 RW |
1775 | if (xp->flags & F_PW_STATIC_NBR_ADDR) |
1776 | pw->flags |= F_PW_STATIC_NBR_ADDR; | |
1777 | else | |
1778 | pw->flags &= ~F_PW_STATIC_NBR_ADDR; | |
8429abe0 RW |
1779 | if (ldpd_process == PROC_LDP_ENGINE && reinstall_tnbr) |
1780 | ldpe_l2vpn_pw_init(pw); | |
be0fbdeb | 1781 | if (ldpd_process == PROC_LDE_ENGINE && reinstall_pwfec) { |
8429abe0 RW |
1782 | l2vpn->pw_type = xl->pw_type; |
1783 | l2vpn->mtu = xl->mtu; | |
1784 | l2vpn_pw_init(pw); | |
1785 | l2vpn->pw_type = previous_pw_type; | |
1786 | l2vpn->mtu = previous_mtu; | |
1787 | } | |
8429abe0 RW |
1788 | } |
1789 | ||
eac6e3f0 | 1790 | /* merge inactive pseudowires */ |
20bacaeb | 1791 | RB_FOREACH_SAFE(pw, l2vpn_pw_head, &l2vpn->pw_inactive_tree, ptmp) { |
eac6e3f0 | 1792 | /* find deleted inactive pseudowires */ |
5c3f00af | 1793 | if ((xp = l2vpn_pw_find_inactive(xl, pw->ifname)) == NULL) { |
20bacaeb | 1794 | RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_inactive_tree, pw); |
eac6e3f0 RW |
1795 | free(pw); |
1796 | } | |
1797 | } | |
20bacaeb | 1798 | RB_FOREACH_SAFE(xp, l2vpn_pw_head, &xl->pw_inactive_tree, ptmp) { |
eac6e3f0 | 1799 | /* find new inactive pseudowires */ |
5c3f00af | 1800 | if ((pw = l2vpn_pw_find_inactive(l2vpn, xp->ifname)) == NULL) { |
1d75a89d RW |
1801 | COPY(pw, xp); |
1802 | RB_INSERT(l2vpn_pw_head, &l2vpn->pw_inactive_tree, pw); | |
1803 | pw->l2vpn = l2vpn; | |
1804 | ||
1805 | switch (ldpd_process) { | |
1806 | case PROC_LDE_ENGINE: | |
1807 | case PROC_LDP_ENGINE: | |
1808 | break; | |
1809 | case PROC_MAIN: | |
1810 | kif_redistribute(pw->ifname); | |
1811 | break; | |
52b530fc | 1812 | } |
eac6e3f0 RW |
1813 | continue; |
1814 | } | |
1815 | ||
1816 | /* update existing inactive pseudowire */ | |
1817 | pw->lsr_id.s_addr = xp->lsr_id.s_addr; | |
1818 | pw->af = xp->af; | |
1819 | pw->addr = xp->addr; | |
1820 | pw->pwid = xp->pwid; | |
1821 | strlcpy(pw->ifname, xp->ifname, sizeof(pw->ifname)); | |
1822 | pw->ifindex = xp->ifindex; | |
1823 | pw->flags = xp->flags; | |
eac6e3f0 | 1824 | } |
eac6e3f0 | 1825 | |
8429abe0 RW |
1826 | l2vpn->pw_type = xl->pw_type; |
1827 | l2vpn->mtu = xl->mtu; | |
1828 | strlcpy(l2vpn->br_ifname, xl->br_ifname, sizeof(l2vpn->br_ifname)); | |
1829 | l2vpn->br_ifindex = xl->br_ifindex; | |
1830 | } | |
1831 | ||
1832 | struct ldpd_conf * | |
1833 | config_new_empty(void) | |
1834 | { | |
1835 | struct ldpd_conf *xconf; | |
1836 | ||
1837 | xconf = calloc(1, sizeof(*xconf)); | |
1838 | if (xconf == NULL) | |
1839 | fatal(NULL); | |
1840 | ||
45926e58 RZ |
1841 | RB_INIT(iface_head, &xconf->iface_tree); |
1842 | RB_INIT(tnbr_head, &xconf->tnbr_tree); | |
1843 | RB_INIT(nbrp_head, &xconf->nbrp_tree); | |
1844 | RB_INIT(l2vpn_head, &xconf->l2vpn_tree); | |
8429abe0 | 1845 | |
e4a82008 RW |
1846 | /* set default values */ |
1847 | ldp_config_reset(xconf); | |
1848 | ||
8429abe0 RW |
1849 | return (xconf); |
1850 | } | |
1851 | ||
1852 | void | |
1853 | config_clear(struct ldpd_conf *conf) | |
1854 | { | |
1855 | struct ldpd_conf *xconf; | |
1856 | ||
1857 | /* | |
1858 | * Merge current config with an empty config, this will deactivate | |
1859 | * and deallocate all the interfaces, pseudowires and so on. Before | |
1860 | * merging, copy the router-id and other variables to avoid some | |
1861 | * unnecessary operations, like trying to reset the neighborships. | |
1862 | */ | |
1863 | xconf = config_new_empty(); | |
1864 | xconf->ipv4 = conf->ipv4; | |
1865 | xconf->ipv6 = conf->ipv6; | |
1866 | xconf->rtr_id = conf->rtr_id; | |
1867 | xconf->trans_pref = conf->trans_pref; | |
1868 | xconf->flags = conf->flags; | |
1869 | merge_config(conf, xconf); | |
1d75a89d | 1870 | free(xconf); |
8429abe0 RW |
1871 | free(conf); |
1872 | } |