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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" |
eac6e3f0 RW |
45 | |
46 | static void ldpd_shutdown(void); | |
28e8294c | 47 | static pid_t start_child(enum ldpd_process, char *, int, int, |
372b8bd3 | 48 | const char *, const char *, const char *); |
eac6e3f0 RW |
49 | static int main_dispatch_ldpe(struct thread *); |
50 | static int main_dispatch_lde(struct thread *); | |
8429abe0 RW |
51 | static int main_imsg_send_ipc_sockets(struct imsgbuf *, |
52 | struct imsgbuf *); | |
53 | static void main_imsg_send_net_sockets(int); | |
54 | static void main_imsg_send_net_socket(int, enum socket_type); | |
55 | static int main_imsg_send_config(struct ldpd_conf *); | |
b67c140b RW |
56 | static void ldp_config_normalize(struct ldpd_conf *, void **); |
57 | static void ldp_config_reset_main(struct ldpd_conf *, void **); | |
58 | static void ldp_config_reset_af(struct ldpd_conf *, int, void **); | |
59 | static void merge_config_ref(struct ldpd_conf *, struct ldpd_conf *, void **); | |
8429abe0 RW |
60 | static void merge_global(struct ldpd_conf *, struct ldpd_conf *); |
61 | static void merge_af(int, struct ldpd_af_conf *, | |
62 | struct ldpd_af_conf *); | |
b67c140b | 63 | static void merge_ifaces(struct ldpd_conf *, struct ldpd_conf *, void **); |
8429abe0 | 64 | static void merge_iface_af(struct iface_af *, struct iface_af *); |
b67c140b RW |
65 | static void merge_tnbrs(struct ldpd_conf *, struct ldpd_conf *, void **); |
66 | static void merge_nbrps(struct ldpd_conf *, struct ldpd_conf *, void **); | |
67 | static void merge_l2vpns(struct ldpd_conf *, struct ldpd_conf *, void **); | |
8429abe0 | 68 | static void merge_l2vpn(struct ldpd_conf *, struct l2vpn *, |
b67c140b | 69 | struct l2vpn *, void **); |
8429abe0 | 70 | |
4af8997d RW |
71 | DEFINE_QOBJ_TYPE(iface) |
72 | DEFINE_QOBJ_TYPE(tnbr) | |
73 | DEFINE_QOBJ_TYPE(nbr_params) | |
74 | DEFINE_QOBJ_TYPE(l2vpn_if) | |
75 | DEFINE_QOBJ_TYPE(l2vpn_pw) | |
76 | DEFINE_QOBJ_TYPE(l2vpn) | |
77 | DEFINE_QOBJ_TYPE(ldpd_conf) | |
78 | ||
8429abe0 RW |
79 | struct ldpd_global global; |
80 | struct ldpd_conf *ldpd_conf; | |
81 | ||
28e8294c RW |
82 | static struct imsgev *iev_ldpe, *iev_ldpe_sync; |
83 | static struct imsgev *iev_lde, *iev_lde_sync; | |
8429abe0 RW |
84 | static pid_t ldpe_pid; |
85 | static pid_t lde_pid; | |
86 | ||
eac6e3f0 RW |
87 | #define LDP_DEFAULT_CONFIG "ldpd.conf" |
88 | #define LDP_VTY_PORT 2612 | |
89 | ||
90 | /* Master of threads. */ | |
91 | struct thread_master *master; | |
92 | ||
eac6e3f0 RW |
93 | /* ldpd privileges */ |
94 | static zebra_capabilities_t _caps_p [] = | |
8429abe0 | 95 | { |
eac6e3f0 RW |
96 | ZCAP_BIND, |
97 | ZCAP_NET_ADMIN | |
98 | }; | |
99 | ||
100 | struct zebra_privs_t ldpd_privs = | |
101 | { | |
b2f36157 DL |
102 | #if defined(FRR_USER) && defined(FRR_GROUP) |
103 | .user = FRR_USER, | |
104 | .group = FRR_GROUP, | |
eac6e3f0 RW |
105 | #endif |
106 | #if defined(VTY_GROUP) | |
107 | .vty_group = VTY_GROUP, | |
108 | #endif | |
109 | .caps_p = _caps_p, | |
110 | .cap_num_p = array_size(_caps_p), | |
111 | .cap_num_i = 0 | |
112 | }; | |
113 | ||
372b8bd3 RW |
114 | /* CTL Socket path */ |
115 | char ctl_sock_path[MAXPATHLEN] = LDPD_SOCKET; | |
116 | ||
eac6e3f0 | 117 | /* LDPd options. */ |
372b8bd3 | 118 | #define OPTION_CTLSOCK 1001 |
eac6e3f0 RW |
119 | static struct option longopts[] = |
120 | { | |
372b8bd3 | 121 | { "ctl_socket", required_argument, NULL, OPTION_CTLSOCK}, |
eac6e3f0 RW |
122 | { 0 } |
123 | }; | |
124 | ||
eac6e3f0 RW |
125 | /* SIGHUP handler. */ |
126 | static void | |
127 | sighup(void) | |
128 | { | |
129 | log_info("SIGHUP received"); | |
130 | } | |
131 | ||
132 | /* SIGINT / SIGTERM handler. */ | |
133 | static void | |
134 | sigint(void) | |
8429abe0 | 135 | { |
eac6e3f0 RW |
136 | log_info("SIGINT received"); |
137 | ldpd_shutdown(); | |
138 | } | |
8429abe0 | 139 | |
eac6e3f0 RW |
140 | /* SIGUSR1 handler. */ |
141 | static void | |
142 | sigusr1(void) | |
143 | { | |
dd8376fe | 144 | zlog_rotate(); |
8429abe0 RW |
145 | } |
146 | ||
eac6e3f0 RW |
147 | static struct quagga_signal_t ldp_signals[] = |
148 | { | |
149 | { | |
150 | .signal = SIGHUP, | |
151 | .handler = &sighup, | |
152 | }, | |
153 | { | |
154 | .signal = SIGINT, | |
155 | .handler = &sigint, | |
156 | }, | |
157 | { | |
158 | .signal = SIGTERM, | |
159 | .handler = &sigint, | |
160 | }, | |
161 | { | |
162 | .signal = SIGUSR1, | |
163 | .handler = &sigusr1, | |
164 | } | |
165 | }; | |
166 | ||
4f04a76b DL |
167 | FRR_DAEMON_INFO(ldpd, LDP, |
168 | .vty_port = LDP_VTY_PORT, | |
169 | ||
170 | .proghelp = "Implementation of the LDP protocol.", | |
171 | ||
172 | .signals = ldp_signals, | |
173 | .n_signals = array_size(ldp_signals), | |
174 | ||
175 | .privs = &ldpd_privs, | |
176 | ) | |
177 | ||
8429abe0 RW |
178 | int |
179 | main(int argc, char *argv[]) | |
180 | { | |
8429abe0 | 181 | char *saved_argv0; |
eac6e3f0 | 182 | int lflag = 0, eflag = 0; |
28e8294c RW |
183 | int pipe_parent2ldpe[2], pipe_parent2ldpe_sync[2]; |
184 | int pipe_parent2lde[2], pipe_parent2lde_sync[2]; | |
372b8bd3 RW |
185 | char *ctl_sock_custom_path = NULL; |
186 | char *ctl_sock_name; | |
eac6e3f0 RW |
187 | const char *user = NULL; |
188 | const char *group = NULL; | |
8429abe0 | 189 | |
8429abe0 RW |
190 | ldpd_process = PROC_MAIN; |
191 | ||
8429abe0 RW |
192 | saved_argv0 = argv[0]; |
193 | if (saved_argv0 == NULL) | |
eac6e3f0 | 194 | saved_argv0 = (char *)"ldpd"; |
8429abe0 | 195 | |
4f04a76b | 196 | frr_preinit(&ldpd_di, argc, argv); |
eb05883f DL |
197 | frr_opt_add("LE", longopts, |
198 | " --ctl_socket Override ctl socket path\n"); | |
4f04a76b | 199 | |
eac6e3f0 RW |
200 | while (1) { |
201 | int opt; | |
202 | ||
4f04a76b | 203 | opt = frr_getopt(argc, argv, NULL); |
eac6e3f0 RW |
204 | |
205 | if (opt == EOF) | |
8429abe0 | 206 | break; |
eac6e3f0 RW |
207 | |
208 | switch (opt) { | |
209 | case 0: | |
210 | break; | |
372b8bd3 RW |
211 | case OPTION_CTLSOCK: |
212 | ctl_sock_name = strrchr(LDPD_SOCKET, '/'); | |
213 | if (ctl_sock_name) | |
214 | /* skip '/' */ | |
215 | ctl_sock_name++; | |
216 | else | |
217 | /* | |
218 | * LDPD_SOCKET configured as relative path | |
219 | * during config? Should really never happen for | |
220 | * sensible config | |
221 | */ | |
222 | ctl_sock_name = (char *)LDPD_SOCKET; | |
223 | ctl_sock_custom_path = optarg; | |
224 | strlcpy(ctl_sock_path, ctl_sock_custom_path, | |
225 | sizeof(ctl_sock_path)); | |
226 | strlcat(ctl_sock_path, "/", sizeof(ctl_sock_path)); | |
227 | strlcat(ctl_sock_path, ctl_sock_name, | |
228 | sizeof(ctl_sock_path)); | |
229 | break; | |
8429abe0 RW |
230 | case 'L': |
231 | lflag = 1; | |
232 | break; | |
233 | case 'E': | |
234 | eflag = 1; | |
235 | break; | |
236 | default: | |
4f04a76b | 237 | frr_help_exit(1); |
eac6e3f0 | 238 | break; |
8429abe0 RW |
239 | } |
240 | } | |
241 | ||
4f04a76b DL |
242 | user = ldpd_privs.user; |
243 | group = ldpd_privs.group; | |
244 | ||
8429abe0 RW |
245 | argc -= optind; |
246 | argv += optind; | |
247 | if (argc > 0 || (lflag && eflag)) | |
4f04a76b | 248 | frr_help_exit(1); |
8429abe0 | 249 | |
eac6e3f0 RW |
250 | /* check for root privileges */ |
251 | if (geteuid() != 0) { | |
252 | errno = EPERM; | |
4f04a76b | 253 | perror(ldpd_di.progname); |
8429abe0 RW |
254 | exit(1); |
255 | } | |
256 | ||
bf1013e6 | 257 | openzlog(ldpd_di.progname, "LDP", 0, |
eac6e3f0 | 258 | LOG_CONS | LOG_NDELAY | LOG_PID, LOG_DAEMON); |
8429abe0 | 259 | |
eac6e3f0 RW |
260 | if (lflag) |
261 | lde(user, group); | |
262 | else if (eflag) | |
372b8bd3 | 263 | ldpe(user, group, ctl_sock_path); |
8429abe0 | 264 | |
eac6e3f0 | 265 | master = thread_master_create(); |
8429abe0 | 266 | |
eac6e3f0 | 267 | cmd_init(1); |
0b47280e | 268 | vty_config_lockless (); |
eac6e3f0 RW |
269 | vty_init(master); |
270 | vrf_init(); | |
45a8eba9 | 271 | access_list_init (); |
eac6e3f0 RW |
272 | ldp_vty_init(); |
273 | ldp_vty_if_init(); | |
8429abe0 | 274 | |
eac6e3f0 RW |
275 | /* Get configuration file. */ |
276 | ldpd_conf = config_new_empty(); | |
b67c140b | 277 | ldp_config_reset_main(ldpd_conf, NULL); |
8429abe0 | 278 | |
eb05883f | 279 | frr_config_fork(); |
eac6e3f0 | 280 | |
4af8997d RW |
281 | QOBJ_REG (ldpd_conf, ldpd_conf); |
282 | ||
eac6e3f0 | 283 | if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe_parent2ldpe) == -1) |
8429abe0 | 284 | fatal("socketpair"); |
28e8294c RW |
285 | if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, |
286 | pipe_parent2ldpe_sync) == -1) | |
287 | fatal("socketpair"); | |
eac6e3f0 | 288 | if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe_parent2lde) == -1) |
8429abe0 | 289 | fatal("socketpair"); |
28e8294c RW |
290 | if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, |
291 | pipe_parent2lde_sync) == -1) | |
292 | fatal("socketpair"); | |
eac6e3f0 RW |
293 | sock_set_nonblock(pipe_parent2ldpe[0]); |
294 | sock_set_cloexec(pipe_parent2ldpe[0]); | |
295 | sock_set_nonblock(pipe_parent2ldpe[1]); | |
296 | sock_set_cloexec(pipe_parent2ldpe[1]); | |
28e8294c RW |
297 | sock_set_nonblock(pipe_parent2ldpe_sync[0]); |
298 | sock_set_cloexec(pipe_parent2ldpe_sync[0]); | |
299 | sock_set_cloexec(pipe_parent2ldpe_sync[1]); | |
eac6e3f0 RW |
300 | sock_set_nonblock(pipe_parent2lde[0]); |
301 | sock_set_cloexec(pipe_parent2lde[0]); | |
302 | sock_set_nonblock(pipe_parent2lde[1]); | |
303 | sock_set_cloexec(pipe_parent2lde[1]); | |
28e8294c RW |
304 | sock_set_nonblock(pipe_parent2lde_sync[0]); |
305 | sock_set_cloexec(pipe_parent2lde_sync[0]); | |
306 | sock_set_cloexec(pipe_parent2lde_sync[1]); | |
8429abe0 RW |
307 | |
308 | /* start children */ | |
309 | lde_pid = start_child(PROC_LDE_ENGINE, saved_argv0, | |
1a35e2e5 DS |
310 | pipe_parent2lde[1], pipe_parent2lde_sync[1], |
311 | user, group, ctl_sock_custom_path); | |
8429abe0 | 312 | ldpe_pid = start_child(PROC_LDP_ENGINE, saved_argv0, |
1a35e2e5 DS |
313 | pipe_parent2ldpe[1], pipe_parent2ldpe_sync[1], |
314 | user, group, ctl_sock_custom_path); | |
8429abe0 | 315 | |
eac6e3f0 | 316 | /* drop privileges */ |
eac6e3f0 | 317 | zprivs_init(&ldpd_privs); |
8429abe0 RW |
318 | |
319 | /* setup signal handler */ | |
eac6e3f0 RW |
320 | signal_init(master, array_size(ldp_signals), ldp_signals); |
321 | ||
322 | /* library inits */ | |
323 | ldp_zebra_init(master); | |
8429abe0 RW |
324 | |
325 | /* setup pipes to children */ | |
28e8294c RW |
326 | if ((iev_ldpe = calloc(1, sizeof(struct imsgev))) == NULL || |
327 | (iev_ldpe_sync = calloc(1, sizeof(struct imsgev))) == NULL || | |
328 | (iev_lde = calloc(1, sizeof(struct imsgev))) == NULL || | |
329 | (iev_lde_sync = calloc(1, sizeof(struct imsgev))) == NULL) | |
8429abe0 RW |
330 | fatal(NULL); |
331 | imsg_init(&iev_ldpe->ibuf, pipe_parent2ldpe[0]); | |
eac6e3f0 RW |
332 | iev_ldpe->handler_read = main_dispatch_ldpe; |
333 | iev_ldpe->ev_read = thread_add_read(master, iev_ldpe->handler_read, | |
334 | iev_ldpe, iev_ldpe->ibuf.fd); | |
335 | iev_ldpe->handler_write = ldp_write_handler; | |
28e8294c RW |
336 | |
337 | imsg_init(&iev_ldpe_sync->ibuf, pipe_parent2ldpe_sync[0]); | |
338 | iev_ldpe_sync->handler_read = main_dispatch_ldpe; | |
339 | iev_ldpe_sync->ev_read = thread_add_read(master, | |
340 | iev_ldpe_sync->handler_read, iev_ldpe_sync, iev_ldpe_sync->ibuf.fd); | |
341 | iev_ldpe_sync->handler_write = ldp_write_handler; | |
8429abe0 | 342 | |
eac6e3f0 RW |
343 | imsg_init(&iev_lde->ibuf, pipe_parent2lde[0]); |
344 | iev_lde->handler_read = main_dispatch_lde; | |
345 | iev_lde->ev_read = thread_add_read(master, iev_lde->handler_read, | |
346 | iev_lde, iev_lde->ibuf.fd); | |
347 | iev_lde->handler_write = ldp_write_handler; | |
28e8294c RW |
348 | |
349 | imsg_init(&iev_lde_sync->ibuf, pipe_parent2lde_sync[0]); | |
350 | iev_lde_sync->handler_read = main_dispatch_lde; | |
351 | iev_lde_sync->ev_read = thread_add_read(master, | |
352 | iev_lde_sync->handler_read, iev_lde_sync, iev_lde_sync->ibuf.fd); | |
353 | iev_lde_sync->handler_write = ldp_write_handler; | |
8429abe0 RW |
354 | |
355 | if (main_imsg_send_ipc_sockets(&iev_ldpe->ibuf, &iev_lde->ibuf)) | |
356 | fatal("could not establish imsg links"); | |
eac6e3f0 RW |
357 | main_imsg_compose_both(IMSG_DEBUG_UPDATE, &ldp_debug, |
358 | sizeof(ldp_debug)); | |
8429abe0 RW |
359 | main_imsg_send_config(ldpd_conf); |
360 | ||
8429abe0 RW |
361 | if (ldpd_conf->ipv4.flags & F_LDPD_AF_ENABLED) |
362 | main_imsg_send_net_sockets(AF_INET); | |
363 | if (ldpd_conf->ipv6.flags & F_LDPD_AF_ENABLED) | |
364 | main_imsg_send_net_sockets(AF_INET6); | |
365 | ||
16077f2f | 366 | frr_run(master); |
8429abe0 | 367 | |
8429abe0 RW |
368 | /* NOTREACHED */ |
369 | return (0); | |
370 | } | |
371 | ||
eac6e3f0 | 372 | static void |
8429abe0 RW |
373 | ldpd_shutdown(void) |
374 | { | |
375 | pid_t pid; | |
376 | int status; | |
377 | ||
378 | /* close pipes */ | |
379 | msgbuf_clear(&iev_ldpe->ibuf.w); | |
380 | close(iev_ldpe->ibuf.fd); | |
381 | msgbuf_clear(&iev_lde->ibuf.w); | |
382 | close(iev_lde->ibuf.fd); | |
383 | ||
8429abe0 RW |
384 | config_clear(ldpd_conf); |
385 | ||
386 | log_debug("waiting for children to terminate"); | |
387 | do { | |
388 | pid = wait(&status); | |
389 | if (pid == -1) { | |
390 | if (errno != EINTR && errno != ECHILD) | |
391 | fatal("wait"); | |
392 | } else if (WIFSIGNALED(status)) | |
393 | log_warnx("%s terminated; signal %d", | |
394 | (pid == lde_pid) ? "label decision engine" : | |
395 | "ldp engine", WTERMSIG(status)); | |
396 | } while (pid != -1 || (pid == -1 && errno == EINTR)); | |
397 | ||
398 | free(iev_ldpe); | |
399 | free(iev_lde); | |
400 | ||
401 | log_info("terminating"); | |
64dffe25 RW |
402 | |
403 | vrf_terminate(); | |
45a8eba9 | 404 | access_list_reset(); |
64dffe25 RW |
405 | cmd_terminate(); |
406 | vty_terminate(); | |
407 | ldp_zebra_destroy(); | |
408 | zprivs_terminate(&ldpd_privs); | |
409 | thread_master_free(master); | |
bf1013e6 | 410 | closezlog(); |
64dffe25 | 411 | |
8429abe0 RW |
412 | exit(0); |
413 | } | |
414 | ||
415 | static pid_t | |
28e8294c | 416 | start_child(enum ldpd_process p, char *argv0, int fd_async, int fd_sync, |
1a35e2e5 | 417 | const char *user, const char *group, const char *ctl_sock_custom_path) |
8429abe0 | 418 | { |
372b8bd3 | 419 | char *argv[9]; |
8429abe0 RW |
420 | int argc = 0; |
421 | pid_t pid; | |
422 | ||
423 | switch (pid = fork()) { | |
424 | case -1: | |
425 | fatal("cannot fork"); | |
426 | case 0: | |
427 | break; | |
428 | default: | |
28e8294c RW |
429 | close(fd_async); |
430 | close(fd_sync); | |
8429abe0 RW |
431 | return (pid); |
432 | } | |
433 | ||
28e8294c RW |
434 | if (dup2(fd_async, LDPD_FD_ASYNC) == -1) |
435 | fatal("cannot setup imsg async fd"); | |
436 | if (dup2(fd_sync, LDPD_FD_SYNC) == -1) | |
437 | fatal("cannot setup imsg sync fd"); | |
8429abe0 RW |
438 | |
439 | argv[argc++] = argv0; | |
440 | switch (p) { | |
441 | case PROC_MAIN: | |
442 | fatalx("Can not start main process"); | |
443 | case PROC_LDE_ENGINE: | |
eac6e3f0 | 444 | argv[argc++] = (char *)"-L"; |
8429abe0 RW |
445 | break; |
446 | case PROC_LDP_ENGINE: | |
eac6e3f0 | 447 | argv[argc++] = (char *)"-E"; |
8429abe0 RW |
448 | break; |
449 | } | |
eac6e3f0 RW |
450 | if (user) { |
451 | argv[argc++] = (char *)"-u"; | |
452 | argv[argc++] = (char *)user; | |
453 | } | |
454 | if (group) { | |
455 | argv[argc++] = (char *)"-g"; | |
456 | argv[argc++] = (char *)group; | |
457 | } | |
372b8bd3 RW |
458 | if (ctl_sock_custom_path) { |
459 | argv[argc++] = (char *)"--ctl_socket"; | |
460 | argv[argc++] = (char *)ctl_sock_custom_path; | |
461 | } | |
8429abe0 RW |
462 | argv[argc++] = NULL; |
463 | ||
464 | execvp(argv0, argv); | |
465 | fatal("execvp"); | |
466 | } | |
467 | ||
468 | /* imsg handling */ | |
469 | /* ARGSUSED */ | |
eac6e3f0 RW |
470 | static int |
471 | main_dispatch_ldpe(struct thread *thread) | |
8429abe0 | 472 | { |
eac6e3f0 | 473 | struct imsgev *iev = THREAD_ARG(thread); |
8429abe0 RW |
474 | struct imsgbuf *ibuf = &iev->ibuf; |
475 | struct imsg imsg; | |
476 | int af; | |
477 | ssize_t n; | |
eac6e3f0 | 478 | int shut = 0; |
8429abe0 | 479 | |
eac6e3f0 RW |
480 | iev->ev_read = NULL; |
481 | ||
482 | if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN) | |
483 | fatal("imsg_read error"); | |
484 | if (n == 0) /* connection closed */ | |
485 | shut = 1; | |
8429abe0 RW |
486 | |
487 | for (;;) { | |
488 | if ((n = imsg_get(ibuf, &imsg)) == -1) | |
489 | fatal("imsg_get"); | |
490 | ||
491 | if (n == 0) | |
492 | break; | |
493 | ||
494 | switch (imsg.hdr.type) { | |
eac6e3f0 RW |
495 | case IMSG_LOG: |
496 | logit(imsg.hdr.pid, "%s", (const char *)imsg.data); | |
497 | break; | |
8429abe0 RW |
498 | case IMSG_REQUEST_SOCKETS: |
499 | af = imsg.hdr.pid; | |
500 | main_imsg_send_net_sockets(af); | |
501 | break; | |
45a8eba9 RW |
502 | case IMSG_ACL_CHECK: |
503 | if (imsg.hdr.len != IMSG_HEADER_SIZE + | |
504 | sizeof(struct acl_check)) | |
505 | fatalx("IMSG_ACL_CHECK imsg with wrong len"); | |
506 | ldp_acl_reply(iev, (struct acl_check *)imsg.data); | |
507 | break; | |
8429abe0 RW |
508 | default: |
509 | log_debug("%s: error handling imsg %d", __func__, | |
510 | imsg.hdr.type); | |
511 | break; | |
512 | } | |
513 | imsg_free(&imsg); | |
514 | } | |
515 | if (!shut) | |
516 | imsg_event_add(iev); | |
517 | else { | |
eac6e3f0 RW |
518 | /* this pipe is dead, so remove the event handlers and exit */ |
519 | THREAD_READ_OFF(iev->ev_read); | |
520 | THREAD_WRITE_OFF(iev->ev_write); | |
521 | ldpe_pid = 0; | |
522 | if (lde_pid == 0) | |
523 | ldpd_shutdown(); | |
524 | else | |
525 | kill(lde_pid, SIGTERM); | |
8429abe0 | 526 | } |
eac6e3f0 RW |
527 | |
528 | return (0); | |
8429abe0 RW |
529 | } |
530 | ||
531 | /* ARGSUSED */ | |
eac6e3f0 RW |
532 | static int |
533 | main_dispatch_lde(struct thread *thread) | |
8429abe0 | 534 | { |
eac6e3f0 | 535 | struct imsgev *iev = THREAD_ARG(thread); |
8429abe0 RW |
536 | struct imsgbuf *ibuf = &iev->ibuf; |
537 | struct imsg imsg; | |
538 | ssize_t n; | |
539 | int shut = 0; | |
540 | ||
eac6e3f0 RW |
541 | iev->ev_read = NULL; |
542 | ||
543 | if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN) | |
544 | fatal("imsg_read error"); | |
545 | if (n == 0) /* connection closed */ | |
546 | shut = 1; | |
8429abe0 RW |
547 | |
548 | for (;;) { | |
549 | if ((n = imsg_get(ibuf, &imsg)) == -1) | |
550 | fatal("imsg_get"); | |
551 | ||
552 | if (n == 0) | |
553 | break; | |
554 | ||
555 | switch (imsg.hdr.type) { | |
eac6e3f0 RW |
556 | case IMSG_LOG: |
557 | logit(imsg.hdr.pid, "%s", (const char *)imsg.data); | |
558 | break; | |
8429abe0 RW |
559 | case IMSG_KLABEL_CHANGE: |
560 | if (imsg.hdr.len - IMSG_HEADER_SIZE != | |
561 | sizeof(struct kroute)) | |
562 | fatalx("invalid size of IMSG_KLABEL_CHANGE"); | |
563 | if (kr_change(imsg.data)) | |
564 | log_warnx("%s: error changing route", __func__); | |
565 | break; | |
566 | case IMSG_KLABEL_DELETE: | |
567 | if (imsg.hdr.len - IMSG_HEADER_SIZE != | |
568 | sizeof(struct kroute)) | |
569 | fatalx("invalid size of IMSG_KLABEL_DELETE"); | |
570 | if (kr_delete(imsg.data)) | |
571 | log_warnx("%s: error deleting route", __func__); | |
572 | break; | |
573 | case IMSG_KPWLABEL_CHANGE: | |
574 | if (imsg.hdr.len - IMSG_HEADER_SIZE != | |
575 | sizeof(struct kpw)) | |
576 | fatalx("invalid size of IMSG_KPWLABEL_CHANGE"); | |
577 | if (kmpw_set(imsg.data)) | |
578 | log_warnx("%s: error changing pseudowire", | |
579 | __func__); | |
580 | break; | |
581 | case IMSG_KPWLABEL_DELETE: | |
582 | if (imsg.hdr.len - IMSG_HEADER_SIZE != | |
583 | sizeof(struct kpw)) | |
584 | fatalx("invalid size of IMSG_KPWLABEL_DELETE"); | |
585 | if (kmpw_unset(imsg.data)) | |
586 | log_warnx("%s: error unsetting pseudowire", | |
587 | __func__); | |
588 | break; | |
45a8eba9 RW |
589 | case IMSG_ACL_CHECK: |
590 | if (imsg.hdr.len != IMSG_HEADER_SIZE + | |
591 | sizeof(struct acl_check)) | |
592 | fatalx("IMSG_ACL_CHECK imsg with wrong len"); | |
593 | ldp_acl_reply(iev, (struct acl_check *)imsg.data); | |
594 | break; | |
8429abe0 RW |
595 | default: |
596 | log_debug("%s: error handling imsg %d", __func__, | |
597 | imsg.hdr.type); | |
598 | break; | |
599 | } | |
600 | imsg_free(&imsg); | |
601 | } | |
602 | if (!shut) | |
603 | imsg_event_add(iev); | |
604 | else { | |
eac6e3f0 RW |
605 | /* this pipe is dead, so remove the event handlers and exit */ |
606 | THREAD_READ_OFF(iev->ev_read); | |
607 | THREAD_WRITE_OFF(iev->ev_write); | |
608 | lde_pid = 0; | |
609 | if (ldpe_pid == 0) | |
610 | ldpd_shutdown(); | |
611 | else | |
612 | kill(ldpe_pid, SIGTERM); | |
8429abe0 | 613 | } |
eac6e3f0 RW |
614 | |
615 | return (0); | |
616 | } | |
617 | ||
618 | /* ARGSUSED */ | |
619 | int | |
620 | ldp_write_handler(struct thread *thread) | |
621 | { | |
622 | struct imsgev *iev = THREAD_ARG(thread); | |
623 | struct imsgbuf *ibuf = &iev->ibuf; | |
624 | ssize_t n; | |
625 | ||
626 | iev->ev_write = NULL; | |
627 | ||
628 | if ((n = msgbuf_write(&ibuf->w)) == -1 && errno != EAGAIN) | |
629 | fatal("msgbuf_write"); | |
630 | if (n == 0) { | |
631 | /* this pipe is dead, so remove the event handlers */ | |
632 | THREAD_READ_OFF(iev->ev_read); | |
633 | THREAD_WRITE_OFF(iev->ev_write); | |
634 | return (0); | |
635 | } | |
636 | ||
637 | imsg_event_add(iev); | |
638 | ||
639 | return (0); | |
8429abe0 RW |
640 | } |
641 | ||
642 | void | |
643 | main_imsg_compose_ldpe(int type, pid_t pid, void *data, uint16_t datalen) | |
644 | { | |
645 | if (iev_ldpe == NULL) | |
646 | return; | |
647 | imsg_compose_event(iev_ldpe, type, 0, pid, -1, data, datalen); | |
648 | } | |
649 | ||
650 | void | |
651 | main_imsg_compose_lde(int type, pid_t pid, void *data, uint16_t datalen) | |
652 | { | |
653 | imsg_compose_event(iev_lde, type, 0, pid, -1, data, datalen); | |
654 | } | |
655 | ||
eac6e3f0 | 656 | int |
8429abe0 RW |
657 | main_imsg_compose_both(enum imsg_type type, void *buf, uint16_t len) |
658 | { | |
eac6e3f0 RW |
659 | if (iev_ldpe == NULL || iev_lde == NULL) |
660 | return (0); | |
8429abe0 RW |
661 | if (imsg_compose_event(iev_ldpe, type, 0, 0, -1, buf, len) == -1) |
662 | return (-1); | |
663 | if (imsg_compose_event(iev_lde, type, 0, 0, -1, buf, len) == -1) | |
664 | return (-1); | |
665 | return (0); | |
666 | } | |
667 | ||
668 | void | |
669 | imsg_event_add(struct imsgev *iev) | |
670 | { | |
28e8294c RW |
671 | if (iev->handler_read) |
672 | THREAD_READ_ON(master, iev->ev_read, iev->handler_read, iev, | |
673 | iev->ibuf.fd); | |
8429abe0 | 674 | |
28e8294c | 675 | if (iev->handler_write && iev->ibuf.w.queued) |
eac6e3f0 RW |
676 | THREAD_WRITE_ON(master, iev->ev_write, iev->handler_write, iev, |
677 | iev->ibuf.fd); | |
8429abe0 RW |
678 | } |
679 | ||
680 | int | |
681 | imsg_compose_event(struct imsgev *iev, uint16_t type, uint32_t peerid, | |
682 | pid_t pid, int fd, void *data, uint16_t datalen) | |
683 | { | |
684 | int ret; | |
685 | ||
686 | if ((ret = imsg_compose(&iev->ibuf, type, peerid, | |
687 | pid, fd, data, datalen)) != -1) | |
688 | imsg_event_add(iev); | |
689 | return (ret); | |
690 | } | |
691 | ||
692 | void | |
693 | evbuf_enqueue(struct evbuf *eb, struct ibuf *buf) | |
694 | { | |
695 | ibuf_close(&eb->wbuf, buf); | |
696 | evbuf_event_add(eb); | |
697 | } | |
698 | ||
699 | void | |
700 | evbuf_event_add(struct evbuf *eb) | |
701 | { | |
702 | if (eb->wbuf.queued) | |
eac6e3f0 RW |
703 | THREAD_WRITE_ON(master, eb->ev, eb->handler, eb->arg, |
704 | eb->wbuf.fd); | |
8429abe0 RW |
705 | } |
706 | ||
707 | void | |
eac6e3f0 | 708 | evbuf_init(struct evbuf *eb, int fd, int (*handler)(struct thread *), |
8429abe0 RW |
709 | void *arg) |
710 | { | |
711 | msgbuf_init(&eb->wbuf); | |
712 | eb->wbuf.fd = fd; | |
eac6e3f0 RW |
713 | eb->handler = handler; |
714 | eb->arg = arg; | |
8429abe0 RW |
715 | } |
716 | ||
717 | void | |
718 | evbuf_clear(struct evbuf *eb) | |
719 | { | |
eac6e3f0 | 720 | THREAD_WRITE_OFF(eb->ev); |
8429abe0 RW |
721 | msgbuf_clear(&eb->wbuf); |
722 | eb->wbuf.fd = -1; | |
723 | } | |
724 | ||
725 | static int | |
726 | main_imsg_send_ipc_sockets(struct imsgbuf *ldpe_buf, struct imsgbuf *lde_buf) | |
727 | { | |
728 | int pipe_ldpe2lde[2]; | |
729 | ||
eac6e3f0 | 730 | if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe_ldpe2lde) == -1) |
8429abe0 | 731 | return (-1); |
eac6e3f0 RW |
732 | sock_set_nonblock(pipe_ldpe2lde[0]); |
733 | sock_set_nonblock(pipe_ldpe2lde[1]); | |
8429abe0 RW |
734 | |
735 | if (imsg_compose(ldpe_buf, IMSG_SOCKET_IPC, 0, 0, pipe_ldpe2lde[0], | |
736 | NULL, 0) == -1) | |
737 | return (-1); | |
738 | if (imsg_compose(lde_buf, IMSG_SOCKET_IPC, 0, 0, pipe_ldpe2lde[1], | |
739 | NULL, 0) == -1) | |
740 | return (-1); | |
741 | ||
742 | return (0); | |
743 | } | |
744 | ||
745 | static void | |
746 | main_imsg_send_net_sockets(int af) | |
747 | { | |
eac6e3f0 RW |
748 | if (!ldp_addrisset(af, &(ldp_af_conf_get(ldpd_conf, af))->trans_addr)) |
749 | return; | |
750 | ||
8429abe0 RW |
751 | main_imsg_send_net_socket(af, LDP_SOCKET_DISC); |
752 | main_imsg_send_net_socket(af, LDP_SOCKET_EDISC); | |
753 | main_imsg_send_net_socket(af, LDP_SOCKET_SESSION); | |
754 | imsg_compose_event(iev_ldpe, IMSG_SETUP_SOCKETS, af, 0, -1, NULL, 0); | |
755 | } | |
756 | ||
757 | static void | |
758 | main_imsg_send_net_socket(int af, enum socket_type type) | |
759 | { | |
760 | int fd; | |
761 | ||
762 | fd = ldp_create_socket(af, type); | |
763 | if (fd == -1) { | |
764 | log_warnx("%s: failed to create %s socket for address-family " | |
765 | "%s", __func__, socket_name(type), af_name(af)); | |
766 | return; | |
767 | } | |
768 | ||
769 | imsg_compose_event(iev_ldpe, IMSG_SOCKET_NET, af, 0, fd, &type, | |
770 | sizeof(type)); | |
771 | } | |
772 | ||
45a8eba9 RW |
773 | int |
774 | ldp_acl_request(struct imsgev *iev, char *acl_name, int af, | |
775 | union ldpd_addr *addr, uint8_t prefixlen) | |
776 | { | |
777 | struct imsg imsg; | |
778 | ssize_t n; | |
779 | struct acl_check acl_check; | |
780 | ||
781 | if (acl_name[0] == '\0') | |
782 | return FILTER_PERMIT; | |
783 | ||
784 | /* build request */ | |
785 | strlcpy(acl_check.acl, acl_name, sizeof(acl_check.acl)); | |
786 | acl_check.af = af; | |
787 | acl_check.addr = *addr; | |
788 | acl_check.prefixlen = prefixlen; | |
789 | ||
790 | /* send (blocking) */ | |
791 | imsg_compose_event(iev, IMSG_ACL_CHECK, 0, 0, -1, &acl_check, | |
792 | sizeof(acl_check)); | |
793 | imsg_flush(&iev->ibuf); | |
794 | ||
795 | /* receive (blocking) and parse result */ | |
796 | if ((n = imsg_read(&iev->ibuf)) == -1) | |
797 | fatal("imsg_read error"); | |
798 | if ((n = imsg_get(&iev->ibuf, &imsg)) == -1) | |
799 | fatal("imsg_get"); | |
800 | if (imsg.hdr.type != IMSG_ACL_CHECK || | |
801 | imsg.hdr.len != IMSG_HEADER_SIZE + sizeof(int)) | |
802 | fatalx("ldp_acl_request: invalid response"); | |
803 | ||
804 | return (*((int *)imsg.data)); | |
805 | } | |
806 | ||
807 | void | |
808 | ldp_acl_reply(struct imsgev *iev, struct acl_check *acl_check) | |
809 | { | |
810 | struct access_list *alist; | |
811 | struct prefix prefix; | |
812 | int result; | |
813 | ||
814 | alist = access_list_lookup(family2afi(acl_check->af), acl_check->acl); | |
815 | if (alist == NULL) | |
816 | result = FILTER_DENY; | |
817 | else { | |
818 | prefix.family = acl_check->af; | |
819 | switch (prefix.family) { | |
820 | case AF_INET: | |
821 | prefix.u.prefix4 = acl_check->addr.v4; | |
822 | break; | |
823 | case AF_INET6: | |
824 | prefix.u.prefix6 = acl_check->addr.v6; | |
825 | break; | |
826 | default: | |
827 | fatalx("ldp_acl_reply: unknown af"); | |
828 | } | |
829 | prefix.prefixlen = acl_check->prefixlen; | |
830 | result = access_list_apply(alist, &prefix); | |
831 | } | |
832 | ||
833 | imsg_compose_event(iev, IMSG_ACL_CHECK, 0, 0, -1, &result, | |
834 | sizeof(result)); | |
835 | } | |
836 | ||
8429abe0 RW |
837 | struct ldpd_af_conf * |
838 | ldp_af_conf_get(struct ldpd_conf *xconf, int af) | |
839 | { | |
840 | switch (af) { | |
841 | case AF_INET: | |
842 | return (&xconf->ipv4); | |
843 | case AF_INET6: | |
844 | return (&xconf->ipv6); | |
845 | default: | |
846 | fatalx("ldp_af_conf_get: unknown af"); | |
847 | } | |
848 | } | |
849 | ||
850 | struct ldpd_af_global * | |
851 | ldp_af_global_get(struct ldpd_global *xglobal, int af) | |
852 | { | |
853 | switch (af) { | |
854 | case AF_INET: | |
855 | return (&xglobal->ipv4); | |
856 | case AF_INET6: | |
857 | return (&xglobal->ipv6); | |
858 | default: | |
859 | fatalx("ldp_af_global_get: unknown af"); | |
860 | } | |
861 | } | |
862 | ||
863 | int | |
864 | ldp_is_dual_stack(struct ldpd_conf *xconf) | |
865 | { | |
866 | return ((xconf->ipv4.flags & F_LDPD_AF_ENABLED) && | |
867 | (xconf->ipv6.flags & F_LDPD_AF_ENABLED)); | |
868 | } | |
869 | ||
eac6e3f0 RW |
870 | in_addr_t |
871 | ldp_rtr_id_get(struct ldpd_conf *xconf) | |
872 | { | |
873 | if (xconf->rtr_id.s_addr != INADDR_ANY) | |
874 | return (xconf->rtr_id.s_addr); | |
875 | else | |
876 | return (global.rtr_id.s_addr); | |
877 | } | |
878 | ||
8429abe0 RW |
879 | static int |
880 | main_imsg_send_config(struct ldpd_conf *xconf) | |
881 | { | |
882 | struct iface *iface; | |
883 | struct tnbr *tnbr; | |
884 | struct nbr_params *nbrp; | |
885 | struct l2vpn *l2vpn; | |
886 | struct l2vpn_if *lif; | |
887 | struct l2vpn_pw *pw; | |
888 | ||
889 | if (main_imsg_compose_both(IMSG_RECONF_CONF, xconf, | |
890 | sizeof(*xconf)) == -1) | |
891 | return (-1); | |
892 | ||
7d3d7491 | 893 | RB_FOREACH(iface, iface_head, &xconf->iface_tree) { |
8429abe0 RW |
894 | if (main_imsg_compose_both(IMSG_RECONF_IFACE, iface, |
895 | sizeof(*iface)) == -1) | |
896 | return (-1); | |
897 | } | |
898 | ||
7989cdba | 899 | RB_FOREACH(tnbr, tnbr_head, &xconf->tnbr_tree) { |
8429abe0 RW |
900 | if (main_imsg_compose_both(IMSG_RECONF_TNBR, tnbr, |
901 | sizeof(*tnbr)) == -1) | |
902 | return (-1); | |
903 | } | |
904 | ||
76c4abd1 | 905 | RB_FOREACH(nbrp, nbrp_head, &xconf->nbrp_tree) { |
8429abe0 RW |
906 | if (main_imsg_compose_both(IMSG_RECONF_NBRP, nbrp, |
907 | sizeof(*nbrp)) == -1) | |
908 | return (-1); | |
909 | } | |
910 | ||
90d7e7bd | 911 | RB_FOREACH(l2vpn, l2vpn_head, &xconf->l2vpn_tree) { |
8429abe0 RW |
912 | if (main_imsg_compose_both(IMSG_RECONF_L2VPN, l2vpn, |
913 | sizeof(*l2vpn)) == -1) | |
914 | return (-1); | |
915 | ||
029c1958 | 916 | RB_FOREACH(lif, l2vpn_if_head, &l2vpn->if_tree) { |
8429abe0 RW |
917 | if (main_imsg_compose_both(IMSG_RECONF_L2VPN_IF, lif, |
918 | sizeof(*lif)) == -1) | |
919 | return (-1); | |
920 | } | |
20bacaeb | 921 | RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_tree) { |
8429abe0 RW |
922 | if (main_imsg_compose_both(IMSG_RECONF_L2VPN_PW, pw, |
923 | sizeof(*pw)) == -1) | |
924 | return (-1); | |
925 | } | |
20bacaeb | 926 | RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_inactive_tree) { |
eac6e3f0 RW |
927 | if (main_imsg_compose_both(IMSG_RECONF_L2VPN_IPW, pw, |
928 | sizeof(*pw)) == -1) | |
929 | return (-1); | |
930 | } | |
8429abe0 RW |
931 | } |
932 | ||
933 | if (main_imsg_compose_both(IMSG_RECONF_END, NULL, 0) == -1) | |
934 | return (-1); | |
935 | ||
936 | return (0); | |
937 | } | |
938 | ||
eac6e3f0 | 939 | int |
b67c140b | 940 | ldp_reload_ref(struct ldpd_conf *xconf, void **ref) |
8429abe0 | 941 | { |
b67c140b | 942 | ldp_config_normalize(xconf, ref); |
8429abe0 RW |
943 | |
944 | if (main_imsg_send_config(xconf) == -1) | |
945 | return (-1); | |
946 | ||
b67c140b | 947 | merge_config_ref(ldpd_conf, xconf, ref); |
8429abe0 RW |
948 | |
949 | return (0); | |
950 | } | |
951 | ||
b67c140b RW |
952 | int |
953 | ldp_reload(struct ldpd_conf *xconf) | |
954 | { | |
955 | return ldp_reload_ref(xconf, NULL); | |
956 | } | |
957 | ||
eac6e3f0 | 958 | static void |
b67c140b | 959 | ldp_config_normalize(struct ldpd_conf *xconf, void **ref) |
eac6e3f0 RW |
960 | { |
961 | struct l2vpn *l2vpn; | |
962 | struct l2vpn_pw *pw; | |
963 | ||
964 | if (!(xconf->flags & F_LDPD_ENABLED)) | |
b67c140b | 965 | ldp_config_reset_main(xconf, ref); |
eac6e3f0 RW |
966 | else { |
967 | if (!(xconf->ipv4.flags & F_LDPD_AF_ENABLED)) | |
b67c140b | 968 | ldp_config_reset_af(xconf, AF_INET, ref); |
eac6e3f0 | 969 | if (!(xconf->ipv6.flags & F_LDPD_AF_ENABLED)) |
b67c140b | 970 | ldp_config_reset_af(xconf, AF_INET6, ref); |
eac6e3f0 RW |
971 | } |
972 | ||
90d7e7bd | 973 | RB_FOREACH(l2vpn, l2vpn_head, &xconf->l2vpn_tree) { |
20bacaeb | 974 | RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_tree) { |
eac6e3f0 RW |
975 | if (pw->flags & F_PW_STATIC_NBR_ADDR) |
976 | continue; | |
977 | ||
978 | pw->af = AF_INET; | |
979 | pw->addr.v4 = pw->lsr_id; | |
980 | } | |
20bacaeb | 981 | RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_inactive_tree) { |
eac6e3f0 RW |
982 | if (pw->flags & F_PW_STATIC_NBR_ADDR) |
983 | continue; | |
984 | ||
985 | pw->af = AF_INET; | |
986 | pw->addr.v4 = pw->lsr_id; | |
987 | } | |
988 | } | |
989 | } | |
990 | ||
991 | static void | |
b67c140b | 992 | ldp_config_reset_main(struct ldpd_conf *conf, void **ref) |
eac6e3f0 RW |
993 | { |
994 | struct iface *iface; | |
995 | struct nbr_params *nbrp; | |
996 | ||
7d3d7491 | 997 | while ((iface = RB_ROOT(&conf->iface_tree)) != NULL) { |
b67c140b RW |
998 | if (ref && *ref == iface) |
999 | *ref = NULL; | |
7d3d7491 | 1000 | RB_REMOVE(iface_head, &conf->iface_tree, iface); |
eac6e3f0 RW |
1001 | free(iface); |
1002 | } | |
1003 | ||
76c4abd1 | 1004 | while ((nbrp = RB_ROOT(&conf->nbrp_tree)) != NULL) { |
b67c140b RW |
1005 | if (ref && *ref == nbrp) |
1006 | *ref = NULL; | |
76c4abd1 | 1007 | RB_REMOVE(nbrp_head, &conf->nbrp_tree, nbrp); |
eac6e3f0 RW |
1008 | free(nbrp); |
1009 | } | |
1010 | ||
1011 | conf->rtr_id.s_addr = INADDR_ANY; | |
b67c140b RW |
1012 | ldp_config_reset_af(conf, AF_INET, ref); |
1013 | ldp_config_reset_af(conf, AF_INET6, ref); | |
eac6e3f0 RW |
1014 | conf->lhello_holdtime = LINK_DFLT_HOLDTIME; |
1015 | conf->lhello_interval = DEFAULT_HELLO_INTERVAL; | |
1016 | conf->thello_holdtime = TARGETED_DFLT_HOLDTIME; | |
1017 | conf->thello_interval = DEFAULT_HELLO_INTERVAL; | |
1018 | conf->trans_pref = DUAL_STACK_LDPOV6; | |
1019 | conf->flags = 0; | |
1020 | } | |
1021 | ||
1022 | static void | |
b67c140b | 1023 | ldp_config_reset_af(struct ldpd_conf *conf, int af, void **ref) |
eac6e3f0 RW |
1024 | { |
1025 | struct ldpd_af_conf *af_conf; | |
1026 | struct iface *iface; | |
1027 | struct iface_af *ia; | |
1028 | struct tnbr *tnbr, *ttmp; | |
1029 | ||
7d3d7491 | 1030 | RB_FOREACH(iface, iface_head, &conf->iface_tree) { |
eac6e3f0 RW |
1031 | ia = iface_af_get(iface, af); |
1032 | ia->enabled = 0; | |
1033 | } | |
1034 | ||
7989cdba | 1035 | RB_FOREACH_SAFE(tnbr, tnbr_head, &conf->tnbr_tree, ttmp) { |
eac6e3f0 RW |
1036 | if (tnbr->af != af) |
1037 | continue; | |
1038 | ||
b67c140b RW |
1039 | if (ref && *ref == tnbr) |
1040 | *ref = NULL; | |
7989cdba | 1041 | RB_REMOVE(tnbr_head, &conf->tnbr_tree, tnbr); |
eac6e3f0 RW |
1042 | free(tnbr); |
1043 | } | |
1044 | ||
1045 | af_conf = ldp_af_conf_get(conf, af); | |
1046 | af_conf->keepalive = 180; | |
1047 | af_conf->lhello_holdtime = 0; | |
1048 | af_conf->lhello_interval = 0; | |
1049 | af_conf->thello_holdtime = 0; | |
1050 | af_conf->thello_interval = 0; | |
1051 | memset(&af_conf->trans_addr, 0, sizeof(af_conf->trans_addr)); | |
1052 | af_conf->flags = 0; | |
1053 | } | |
1054 | ||
1055 | struct ldpd_conf * | |
b67c140b | 1056 | ldp_dup_config_ref(struct ldpd_conf *conf, void **ref) |
eac6e3f0 RW |
1057 | { |
1058 | struct ldpd_conf *xconf; | |
1059 | struct iface *iface, *xi; | |
1060 | struct tnbr *tnbr, *xt; | |
1061 | struct nbr_params *nbrp, *xn; | |
1062 | struct l2vpn *l2vpn, *xl; | |
1063 | struct l2vpn_if *lif, *xf; | |
1064 | struct l2vpn_pw *pw, *xp; | |
1065 | ||
b67c140b RW |
1066 | #define COPY(a, b) do { \ |
1067 | a = calloc(1, sizeof(*a)); \ | |
1068 | if (a == NULL) \ | |
1069 | fatal(__func__); \ | |
1070 | *a = *b; \ | |
1071 | if (ref && *ref == b) *ref = a; \ | |
1072 | } while (0) | |
1073 | ||
1074 | COPY(xconf, conf); | |
7d3d7491 | 1075 | RB_INIT(&xconf->iface_tree); |
7989cdba | 1076 | RB_INIT(&xconf->tnbr_tree); |
76c4abd1 | 1077 | RB_INIT(&xconf->nbrp_tree); |
90d7e7bd | 1078 | RB_INIT(&xconf->l2vpn_tree); |
eac6e3f0 | 1079 | |
7d3d7491 | 1080 | RB_FOREACH(iface, iface_head, &conf->iface_tree) { |
b67c140b | 1081 | COPY(xi, iface); |
eac6e3f0 RW |
1082 | xi->ipv4.iface = xi; |
1083 | xi->ipv6.iface = xi; | |
7d3d7491 | 1084 | RB_INSERT(iface_head, &xconf->iface_tree, xi); |
eac6e3f0 | 1085 | } |
7989cdba | 1086 | RB_FOREACH(tnbr, tnbr_head, &conf->tnbr_tree) { |
b67c140b | 1087 | COPY(xt, tnbr); |
7989cdba | 1088 | RB_INSERT(tnbr_head, &xconf->tnbr_tree, xt); |
eac6e3f0 | 1089 | } |
76c4abd1 | 1090 | RB_FOREACH(nbrp, nbrp_head, &conf->nbrp_tree) { |
b67c140b | 1091 | COPY(xn, nbrp); |
76c4abd1 | 1092 | RB_INSERT(nbrp_head, &xconf->nbrp_tree, xn); |
eac6e3f0 | 1093 | } |
90d7e7bd | 1094 | RB_FOREACH(l2vpn, l2vpn_head, &conf->l2vpn_tree) { |
b67c140b | 1095 | COPY(xl, l2vpn); |
029c1958 | 1096 | RB_INIT(&xl->if_tree); |
20bacaeb RW |
1097 | RB_INIT(&xl->pw_tree); |
1098 | RB_INIT(&xl->pw_inactive_tree); | |
90d7e7bd | 1099 | RB_INSERT(l2vpn_head, &xconf->l2vpn_tree, xl); |
eac6e3f0 | 1100 | |
029c1958 | 1101 | RB_FOREACH(lif, l2vpn_if_head, &l2vpn->if_tree) { |
b67c140b | 1102 | COPY(xf, lif); |
eac6e3f0 | 1103 | xf->l2vpn = xl; |
029c1958 | 1104 | RB_INSERT(l2vpn_if_head, &xl->if_tree, xf); |
eac6e3f0 | 1105 | } |
20bacaeb | 1106 | RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_tree) { |
b67c140b | 1107 | COPY(xp, pw); |
eac6e3f0 | 1108 | xp->l2vpn = xl; |
20bacaeb | 1109 | RB_INSERT(l2vpn_pw_head, &xl->pw_tree, xp); |
eac6e3f0 | 1110 | } |
20bacaeb | 1111 | RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_inactive_tree) { |
b67c140b | 1112 | COPY(xp, pw); |
eac6e3f0 | 1113 | xp->l2vpn = xl; |
20bacaeb | 1114 | RB_INSERT(l2vpn_pw_head, &xl->pw_inactive_tree, xp); |
eac6e3f0 RW |
1115 | } |
1116 | } | |
b67c140b | 1117 | #undef COPY |
eac6e3f0 RW |
1118 | |
1119 | return (xconf); | |
1120 | } | |
1121 | ||
b67c140b RW |
1122 | struct ldpd_conf * |
1123 | ldp_dup_config(struct ldpd_conf *conf) | |
1124 | { | |
1125 | return ldp_dup_config_ref(conf, NULL); | |
1126 | } | |
1127 | ||
eac6e3f0 RW |
1128 | void |
1129 | ldp_clear_config(struct ldpd_conf *xconf) | |
1130 | { | |
1131 | struct iface *iface; | |
1132 | struct tnbr *tnbr; | |
1133 | struct nbr_params *nbrp; | |
1134 | struct l2vpn *l2vpn; | |
1135 | ||
7d3d7491 RW |
1136 | while ((iface = RB_ROOT(&xconf->iface_tree)) != NULL) { |
1137 | RB_REMOVE(iface_head, &xconf->iface_tree, iface); | |
eac6e3f0 RW |
1138 | free(iface); |
1139 | } | |
7989cdba RW |
1140 | while ((tnbr = RB_ROOT(&xconf->tnbr_tree)) != NULL) { |
1141 | RB_REMOVE(tnbr_head, &xconf->tnbr_tree, tnbr); | |
eac6e3f0 RW |
1142 | free(tnbr); |
1143 | } | |
76c4abd1 RW |
1144 | while ((nbrp = RB_ROOT(&xconf->nbrp_tree)) != NULL) { |
1145 | RB_REMOVE(nbrp_head, &xconf->nbrp_tree, nbrp); | |
eac6e3f0 RW |
1146 | free(nbrp); |
1147 | } | |
90d7e7bd RW |
1148 | while ((l2vpn = RB_ROOT(&xconf->l2vpn_tree)) != NULL) { |
1149 | RB_REMOVE(l2vpn_head, &xconf->l2vpn_tree, l2vpn); | |
eac6e3f0 RW |
1150 | l2vpn_del(l2vpn); |
1151 | } | |
1152 | ||
1153 | free(xconf); | |
1154 | } | |
1155 | ||
b67c140b RW |
1156 | static void |
1157 | merge_config_ref(struct ldpd_conf *conf, struct ldpd_conf *xconf, void **ref) | |
8429abe0 RW |
1158 | { |
1159 | merge_global(conf, xconf); | |
1160 | merge_af(AF_INET, &conf->ipv4, &xconf->ipv4); | |
1161 | merge_af(AF_INET6, &conf->ipv6, &xconf->ipv6); | |
b67c140b RW |
1162 | merge_ifaces(conf, xconf, ref); |
1163 | merge_tnbrs(conf, xconf, ref); | |
1164 | merge_nbrps(conf, xconf, ref); | |
1165 | merge_l2vpns(conf, xconf, ref); | |
1166 | if (ref && *ref == xconf) | |
1167 | *ref = conf; | |
8429abe0 RW |
1168 | free(xconf); |
1169 | } | |
1170 | ||
b67c140b RW |
1171 | void |
1172 | merge_config(struct ldpd_conf *conf, struct ldpd_conf *xconf) | |
1173 | { | |
1174 | merge_config_ref(conf, xconf, NULL); | |
1175 | } | |
1176 | ||
8429abe0 RW |
1177 | static void |
1178 | merge_global(struct ldpd_conf *conf, struct ldpd_conf *xconf) | |
1179 | { | |
1180 | /* change of router-id requires resetting all neighborships */ | |
1181 | if (conf->rtr_id.s_addr != xconf->rtr_id.s_addr) { | |
1182 | if (ldpd_process == PROC_LDP_ENGINE) { | |
45a8eba9 | 1183 | ldpe_reset_nbrs(AF_UNSPEC); |
8429abe0 RW |
1184 | if (conf->rtr_id.s_addr == INADDR_ANY || |
1185 | xconf->rtr_id.s_addr == INADDR_ANY) { | |
1186 | if_update_all(AF_UNSPEC); | |
1187 | tnbr_update_all(AF_UNSPEC); | |
1188 | } | |
1189 | } | |
1190 | conf->rtr_id = xconf->rtr_id; | |
1191 | } | |
1192 | ||
eac6e3f0 RW |
1193 | conf->lhello_holdtime = xconf->lhello_holdtime; |
1194 | conf->lhello_interval = xconf->lhello_interval; | |
1195 | conf->thello_holdtime = xconf->thello_holdtime; | |
1196 | conf->thello_interval = xconf->thello_interval; | |
1197 | ||
8429abe0 RW |
1198 | if (conf->trans_pref != xconf->trans_pref) { |
1199 | if (ldpd_process == PROC_LDP_ENGINE) | |
1200 | ldpe_reset_ds_nbrs(); | |
1201 | conf->trans_pref = xconf->trans_pref; | |
1202 | } | |
1203 | ||
1204 | if ((conf->flags & F_LDPD_DS_CISCO_INTEROP) != | |
1205 | (xconf->flags & F_LDPD_DS_CISCO_INTEROP)) { | |
1206 | if (ldpd_process == PROC_LDP_ENGINE) | |
1207 | ldpe_reset_ds_nbrs(); | |
1208 | } | |
1209 | ||
1210 | conf->flags = xconf->flags; | |
1211 | } | |
1212 | ||
1213 | static void | |
1214 | merge_af(int af, struct ldpd_af_conf *af_conf, struct ldpd_af_conf *xa) | |
1215 | { | |
45a8eba9 RW |
1216 | int stop_init_backoff = 0; |
1217 | int remove_dynamic_tnbrs = 0; | |
1218 | int change_egress_label = 0; | |
1219 | int reset_nbrs_ipv4 = 0; | |
1220 | int reset_nbrs = 0; | |
1221 | int update_sockets = 0; | |
1222 | ||
1223 | /* update timers */ | |
8429abe0 RW |
1224 | if (af_conf->keepalive != xa->keepalive) { |
1225 | af_conf->keepalive = xa->keepalive; | |
45a8eba9 | 1226 | stop_init_backoff = 1; |
8429abe0 | 1227 | } |
eac6e3f0 RW |
1228 | af_conf->lhello_holdtime = xa->lhello_holdtime; |
1229 | af_conf->lhello_interval = xa->lhello_interval; | |
8429abe0 RW |
1230 | af_conf->thello_holdtime = xa->thello_holdtime; |
1231 | af_conf->thello_interval = xa->thello_interval; | |
1232 | ||
1233 | /* update flags */ | |
45a8eba9 | 1234 | if ((af_conf->flags & F_LDPD_AF_THELLO_ACCEPT) && |
8429abe0 | 1235 | !(xa->flags & F_LDPD_AF_THELLO_ACCEPT)) |
45a8eba9 | 1236 | remove_dynamic_tnbrs = 1; |
8429abe0 RW |
1237 | if ((af_conf->flags & F_LDPD_AF_NO_GTSM) != |
1238 | (xa->flags & F_LDPD_AF_NO_GTSM)) { | |
1239 | if (af == AF_INET6) | |
1240 | /* need to set/unset IPV6_MINHOPCOUNT */ | |
1241 | update_sockets = 1; | |
45a8eba9 | 1242 | else |
8429abe0 | 1243 | /* for LDPv4 just resetting the neighbors is enough */ |
45a8eba9 | 1244 | reset_nbrs_ipv4 = 1; |
8429abe0 | 1245 | } |
8429abe0 RW |
1246 | if ((af_conf->flags & F_LDPD_AF_EXPNULL) != |
1247 | (xa->flags & F_LDPD_AF_EXPNULL)) | |
45a8eba9 | 1248 | change_egress_label = 1; |
8429abe0 RW |
1249 | af_conf->flags = xa->flags; |
1250 | ||
45a8eba9 | 1251 | /* update the transport address */ |
8429abe0 RW |
1252 | if (ldp_addrcmp(af, &af_conf->trans_addr, &xa->trans_addr)) { |
1253 | af_conf->trans_addr = xa->trans_addr; | |
1254 | update_sockets = 1; | |
1255 | } | |
1256 | ||
45a8eba9 RW |
1257 | /* update ACLs */ |
1258 | if (strcmp(af_conf->acl_label_advertise_to, | |
1259 | xa->acl_label_advertise_to) || | |
1260 | strcmp(af_conf->acl_label_advertise_for, | |
1261 | xa->acl_label_advertise_for) || | |
1262 | strcmp(af_conf->acl_label_accept_from, | |
1263 | xa->acl_label_accept_from) || | |
1264 | strcmp(af_conf->acl_label_accept_for, | |
1265 | xa->acl_label_accept_for)) | |
1266 | reset_nbrs = 1; | |
1267 | if (strcmp(af_conf->acl_thello_accept_from, xa->acl_thello_accept_from)) | |
1268 | remove_dynamic_tnbrs = 1; | |
1269 | if (strcmp(af_conf->acl_label_expnull_for, xa->acl_label_expnull_for)) | |
1270 | change_egress_label = 1; | |
1271 | strlcpy(af_conf->acl_thello_accept_from, xa->acl_thello_accept_from, | |
1272 | sizeof(af_conf->acl_thello_accept_from)); | |
1273 | strlcpy(af_conf->acl_label_allocate_for, xa->acl_label_allocate_for, | |
1274 | sizeof(af_conf->acl_label_allocate_for)); | |
1275 | strlcpy(af_conf->acl_label_advertise_to, xa->acl_label_advertise_to, | |
1276 | sizeof(af_conf->acl_label_advertise_to)); | |
1277 | strlcpy(af_conf->acl_label_advertise_for, xa->acl_label_advertise_for, | |
1278 | sizeof(af_conf->acl_label_advertise_for)); | |
1279 | strlcpy(af_conf->acl_label_accept_from, xa->acl_label_accept_from, | |
1280 | sizeof(af_conf->acl_label_accept_from)); | |
1281 | strlcpy(af_conf->acl_label_accept_for, xa->acl_label_accept_for, | |
1282 | sizeof(af_conf->acl_label_accept_for)); | |
1283 | strlcpy(af_conf->acl_label_expnull_for, xa->acl_label_expnull_for, | |
1284 | sizeof(af_conf->acl_label_expnull_for)); | |
1285 | ||
1286 | /* apply the new configuration */ | |
1287 | switch (ldpd_process) { | |
1288 | case PROC_LDE_ENGINE: | |
1289 | if (change_egress_label) | |
1290 | lde_change_egress_label(af); | |
1291 | break; | |
1292 | case PROC_LDP_ENGINE: | |
1293 | if (stop_init_backoff) | |
1294 | ldpe_stop_init_backoff(af); | |
1295 | if (remove_dynamic_tnbrs) | |
1296 | ldpe_remove_dynamic_tnbrs(af); | |
1297 | if (reset_nbrs) | |
1298 | ldpe_reset_nbrs(AF_UNSPEC); | |
1299 | else if (reset_nbrs_ipv4) | |
1300 | ldpe_reset_nbrs(AF_INET); | |
1301 | break; | |
1302 | case PROC_MAIN: | |
1303 | if (update_sockets && iev_ldpe) | |
1304 | imsg_compose_event(iev_ldpe, IMSG_CLOSE_SOCKETS, af, | |
1305 | 0, -1, NULL, 0); | |
1306 | break; | |
1307 | } | |
8429abe0 RW |
1308 | } |
1309 | ||
1310 | static void | |
b67c140b | 1311 | merge_ifaces(struct ldpd_conf *conf, struct ldpd_conf *xconf, void **ref) |
8429abe0 RW |
1312 | { |
1313 | struct iface *iface, *itmp, *xi; | |
1314 | ||
7d3d7491 | 1315 | RB_FOREACH_SAFE(iface, iface_head, &conf->iface_tree, itmp) { |
8429abe0 | 1316 | /* find deleted interfaces */ |
eac6e3f0 | 1317 | if ((xi = if_lookup_name(xconf, iface->name)) == NULL) { |
7d3d7491 | 1318 | RB_REMOVE(iface_head, &conf->iface_tree, iface); |
4af8997d RW |
1319 | |
1320 | switch (ldpd_process) { | |
1321 | case PROC_LDE_ENGINE: | |
1322 | break; | |
1323 | case PROC_LDP_ENGINE: | |
8429abe0 | 1324 | if_exit(iface); |
4af8997d RW |
1325 | break; |
1326 | case PROC_MAIN: | |
1327 | QOBJ_UNREG (iface); | |
1328 | break; | |
1329 | } | |
8429abe0 RW |
1330 | free(iface); |
1331 | } | |
1332 | } | |
7d3d7491 | 1333 | RB_FOREACH_SAFE(xi, iface_head, &xconf->iface_tree, itmp) { |
8429abe0 | 1334 | /* find new interfaces */ |
eac6e3f0 | 1335 | if ((iface = if_lookup_name(conf, xi->name)) == NULL) { |
7d3d7491 RW |
1336 | RB_REMOVE(iface_head, &xconf->iface_tree, xi); |
1337 | RB_INSERT(iface_head, &conf->iface_tree, xi); | |
8429abe0 | 1338 | |
4af8997d RW |
1339 | if (ldpd_process == PROC_MAIN) { |
1340 | QOBJ_REG (xi, iface); | |
1341 | /* resend addresses to activate new interfaces */ | |
8429abe0 | 1342 | kif_redistribute(xi->name); |
4af8997d | 1343 | } |
8429abe0 RW |
1344 | continue; |
1345 | } | |
1346 | ||
1347 | /* update existing interfaces */ | |
1348 | merge_iface_af(&iface->ipv4, &xi->ipv4); | |
1349 | merge_iface_af(&iface->ipv6, &xi->ipv6); | |
7d3d7491 | 1350 | RB_REMOVE(iface_head, &xconf->iface_tree, xi); |
b67c140b RW |
1351 | if (ref && *ref == xi) |
1352 | *ref = iface; | |
8429abe0 RW |
1353 | free(xi); |
1354 | } | |
1355 | } | |
1356 | ||
1357 | static void | |
1358 | merge_iface_af(struct iface_af *ia, struct iface_af *xi) | |
1359 | { | |
1360 | if (ia->enabled != xi->enabled) { | |
1361 | ia->enabled = xi->enabled; | |
1362 | if (ldpd_process == PROC_LDP_ENGINE) | |
1363 | if_update(ia->iface, ia->af); | |
1364 | } | |
1365 | ia->hello_holdtime = xi->hello_holdtime; | |
1366 | ia->hello_interval = xi->hello_interval; | |
1367 | } | |
1368 | ||
1369 | static void | |
b67c140b | 1370 | merge_tnbrs(struct ldpd_conf *conf, struct ldpd_conf *xconf, void **ref) |
8429abe0 RW |
1371 | { |
1372 | struct tnbr *tnbr, *ttmp, *xt; | |
1373 | ||
7989cdba | 1374 | RB_FOREACH_SAFE(tnbr, tnbr_head, &conf->tnbr_tree, ttmp) { |
8429abe0 RW |
1375 | if (!(tnbr->flags & F_TNBR_CONFIGURED)) |
1376 | continue; | |
1377 | ||
1378 | /* find deleted tnbrs */ | |
1379 | if ((xt = tnbr_find(xconf, tnbr->af, &tnbr->addr)) == NULL) { | |
4af8997d RW |
1380 | switch (ldpd_process) { |
1381 | case PROC_LDE_ENGINE: | |
7989cdba | 1382 | RB_REMOVE(tnbr_head, &conf->tnbr_tree, tnbr); |
4af8997d RW |
1383 | free(tnbr); |
1384 | break; | |
1385 | case PROC_LDP_ENGINE: | |
8429abe0 | 1386 | tnbr->flags &= ~F_TNBR_CONFIGURED; |
7989cdba | 1387 | tnbr_check(conf, tnbr); |
4af8997d RW |
1388 | break; |
1389 | case PROC_MAIN: | |
7989cdba | 1390 | RB_REMOVE(tnbr_head, &conf->tnbr_tree, tnbr); |
4af8997d | 1391 | QOBJ_UNREG (tnbr); |
8429abe0 | 1392 | free(tnbr); |
4af8997d | 1393 | break; |
8429abe0 RW |
1394 | } |
1395 | } | |
1396 | } | |
7989cdba | 1397 | RB_FOREACH_SAFE(xt, tnbr_head, &xconf->tnbr_tree, ttmp) { |
8429abe0 RW |
1398 | /* find new tnbrs */ |
1399 | if ((tnbr = tnbr_find(conf, xt->af, &xt->addr)) == NULL) { | |
7989cdba RW |
1400 | RB_REMOVE(tnbr_head, &xconf->tnbr_tree, xt); |
1401 | RB_INSERT(tnbr_head, &conf->tnbr_tree, xt); | |
8429abe0 | 1402 | |
4af8997d RW |
1403 | switch (ldpd_process) { |
1404 | case PROC_LDE_ENGINE: | |
1405 | break; | |
1406 | case PROC_LDP_ENGINE: | |
8429abe0 | 1407 | tnbr_update(xt); |
4af8997d RW |
1408 | break; |
1409 | case PROC_MAIN: | |
1410 | QOBJ_REG (xt, tnbr); | |
1411 | break; | |
1412 | } | |
8429abe0 RW |
1413 | continue; |
1414 | } | |
1415 | ||
1416 | /* update existing tnbrs */ | |
1417 | if (!(tnbr->flags & F_TNBR_CONFIGURED)) | |
1418 | tnbr->flags |= F_TNBR_CONFIGURED; | |
7989cdba | 1419 | RB_REMOVE(tnbr_head, &xconf->tnbr_tree, xt); |
b67c140b RW |
1420 | if (ref && *ref == xt) |
1421 | *ref = tnbr; | |
8429abe0 RW |
1422 | free(xt); |
1423 | } | |
1424 | } | |
1425 | ||
1426 | static void | |
b67c140b | 1427 | merge_nbrps(struct ldpd_conf *conf, struct ldpd_conf *xconf, void **ref) |
8429abe0 RW |
1428 | { |
1429 | struct nbr_params *nbrp, *ntmp, *xn; | |
1430 | struct nbr *nbr; | |
1431 | int nbrp_changed; | |
1432 | ||
76c4abd1 | 1433 | RB_FOREACH_SAFE(nbrp, nbrp_head, &conf->nbrp_tree, ntmp) { |
8429abe0 RW |
1434 | /* find deleted nbrps */ |
1435 | if ((xn = nbr_params_find(xconf, nbrp->lsr_id)) == NULL) { | |
4af8997d RW |
1436 | switch (ldpd_process) { |
1437 | case PROC_LDE_ENGINE: | |
1438 | break; | |
1439 | case PROC_LDP_ENGINE: | |
8429abe0 RW |
1440 | nbr = nbr_find_ldpid(nbrp->lsr_id.s_addr); |
1441 | if (nbr) { | |
1442 | session_shutdown(nbr, S_SHUTDOWN, 0, 0); | |
eac6e3f0 | 1443 | #ifdef __OpenBSD__ |
8429abe0 | 1444 | pfkey_remove(nbr); |
eac6e3f0 RW |
1445 | #else |
1446 | sock_set_md5sig( | |
1447 | (ldp_af_global_get(&global, | |
1448 | nbr->af))->ldp_session_socket, | |
1449 | nbr->af, &nbr->raddr, NULL); | |
1450 | #endif | |
8429abe0 RW |
1451 | if (nbr_session_active_role(nbr)) |
1452 | nbr_establish_connection(nbr); | |
1453 | } | |
4af8997d RW |
1454 | break; |
1455 | case PROC_MAIN: | |
1456 | QOBJ_UNREG (nbrp); | |
1457 | break; | |
8429abe0 | 1458 | } |
76c4abd1 | 1459 | RB_REMOVE(nbrp_head, &conf->nbrp_tree, nbrp); |
8429abe0 RW |
1460 | free(nbrp); |
1461 | } | |
1462 | } | |
76c4abd1 | 1463 | RB_FOREACH_SAFE(xn, nbrp_head, &xconf->nbrp_tree, ntmp) { |
8429abe0 RW |
1464 | /* find new nbrps */ |
1465 | if ((nbrp = nbr_params_find(conf, xn->lsr_id)) == NULL) { | |
76c4abd1 RW |
1466 | RB_REMOVE(nbrp_head, &xconf->nbrp_tree, xn); |
1467 | RB_INSERT(nbrp_head, &conf->nbrp_tree, xn); | |
8429abe0 | 1468 | |
4af8997d RW |
1469 | switch (ldpd_process) { |
1470 | case PROC_LDE_ENGINE: | |
1471 | break; | |
1472 | case PROC_LDP_ENGINE: | |
8429abe0 RW |
1473 | nbr = nbr_find_ldpid(xn->lsr_id.s_addr); |
1474 | if (nbr) { | |
1475 | session_shutdown(nbr, S_SHUTDOWN, 0, 0); | |
eac6e3f0 | 1476 | #ifdef __OpenBSD__ |
8429abe0 RW |
1477 | if (pfkey_establish(nbr, xn) == -1) |
1478 | fatalx("pfkey setup failed"); | |
eac6e3f0 RW |
1479 | #else |
1480 | sock_set_md5sig( | |
1481 | (ldp_af_global_get(&global, | |
1482 | nbr->af))->ldp_session_socket, | |
1483 | nbr->af, &nbr->raddr, | |
1484 | xn->auth.md5key); | |
1485 | #endif | |
8429abe0 RW |
1486 | if (nbr_session_active_role(nbr)) |
1487 | nbr_establish_connection(nbr); | |
1488 | } | |
4af8997d RW |
1489 | break; |
1490 | case PROC_MAIN: | |
1491 | QOBJ_REG (xn, nbr_params); | |
1492 | break; | |
8429abe0 RW |
1493 | } |
1494 | continue; | |
1495 | } | |
1496 | ||
1497 | /* update existing nbrps */ | |
1498 | if (nbrp->flags != xn->flags || | |
1499 | nbrp->keepalive != xn->keepalive || | |
1500 | nbrp->gtsm_enabled != xn->gtsm_enabled || | |
1501 | nbrp->gtsm_hops != xn->gtsm_hops || | |
1502 | nbrp->auth.method != xn->auth.method || | |
1503 | strcmp(nbrp->auth.md5key, xn->auth.md5key) != 0) | |
1504 | nbrp_changed = 1; | |
1505 | else | |
1506 | nbrp_changed = 0; | |
1507 | ||
1508 | nbrp->keepalive = xn->keepalive; | |
1509 | nbrp->gtsm_enabled = xn->gtsm_enabled; | |
1510 | nbrp->gtsm_hops = xn->gtsm_hops; | |
1511 | nbrp->auth.method = xn->auth.method; | |
1512 | strlcpy(nbrp->auth.md5key, xn->auth.md5key, | |
1513 | sizeof(nbrp->auth.md5key)); | |
1514 | nbrp->auth.md5key_len = xn->auth.md5key_len; | |
1515 | nbrp->flags = xn->flags; | |
1516 | ||
1517 | if (ldpd_process == PROC_LDP_ENGINE) { | |
1518 | nbr = nbr_find_ldpid(nbrp->lsr_id.s_addr); | |
1519 | if (nbr && nbrp_changed) { | |
1520 | session_shutdown(nbr, S_SHUTDOWN, 0, 0); | |
eac6e3f0 | 1521 | #ifdef __OpenBSD__ |
8429abe0 RW |
1522 | pfkey_remove(nbr); |
1523 | if (pfkey_establish(nbr, nbrp) == -1) | |
1524 | fatalx("pfkey setup failed"); | |
eac6e3f0 RW |
1525 | #else |
1526 | sock_set_md5sig((ldp_af_global_get(&global, | |
1527 | nbr->af))->ldp_session_socket, nbr->af, | |
1528 | &nbr->raddr, nbrp->auth.md5key); | |
1529 | #endif | |
8429abe0 RW |
1530 | if (nbr_session_active_role(nbr)) |
1531 | nbr_establish_connection(nbr); | |
1532 | } | |
1533 | } | |
76c4abd1 | 1534 | RB_REMOVE(nbrp_head, &xconf->nbrp_tree, xn); |
b67c140b RW |
1535 | if (ref && *ref == xn) |
1536 | *ref = nbrp; | |
8429abe0 RW |
1537 | free(xn); |
1538 | } | |
1539 | } | |
1540 | ||
1541 | static void | |
b67c140b | 1542 | merge_l2vpns(struct ldpd_conf *conf, struct ldpd_conf *xconf, void **ref) |
8429abe0 RW |
1543 | { |
1544 | struct l2vpn *l2vpn, *ltmp, *xl; | |
4af8997d RW |
1545 | struct l2vpn_if *lif; |
1546 | struct l2vpn_pw *pw; | |
8429abe0 | 1547 | |
90d7e7bd | 1548 | RB_FOREACH_SAFE(l2vpn, l2vpn_head, &conf->l2vpn_tree, ltmp) { |
8429abe0 RW |
1549 | /* find deleted l2vpns */ |
1550 | if ((xl = l2vpn_find(xconf, l2vpn->name)) == NULL) { | |
90d7e7bd | 1551 | RB_REMOVE(l2vpn_head, &conf->l2vpn_tree, l2vpn); |
8429abe0 RW |
1552 | |
1553 | switch (ldpd_process) { | |
1554 | case PROC_LDE_ENGINE: | |
1555 | l2vpn_exit(l2vpn); | |
1556 | break; | |
1557 | case PROC_LDP_ENGINE: | |
1558 | ldpe_l2vpn_exit(l2vpn); | |
1559 | break; | |
1560 | case PROC_MAIN: | |
029c1958 | 1561 | RB_FOREACH(lif, l2vpn_if_head, &l2vpn->if_tree) |
4af8997d | 1562 | QOBJ_UNREG (lif); |
20bacaeb | 1563 | RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_tree) |
4af8997d | 1564 | QOBJ_UNREG (pw); |
20bacaeb | 1565 | RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_inactive_tree) |
4af8997d RW |
1566 | QOBJ_UNREG (pw); |
1567 | QOBJ_UNREG (l2vpn); | |
8429abe0 RW |
1568 | break; |
1569 | } | |
1570 | l2vpn_del(l2vpn); | |
1571 | } | |
1572 | } | |
90d7e7bd | 1573 | RB_FOREACH_SAFE(xl, l2vpn_head, &xconf->l2vpn_tree, ltmp) { |
8429abe0 RW |
1574 | /* find new l2vpns */ |
1575 | if ((l2vpn = l2vpn_find(conf, xl->name)) == NULL) { | |
90d7e7bd RW |
1576 | RB_REMOVE(l2vpn_head, &xconf->l2vpn_tree, xl); |
1577 | RB_INSERT(l2vpn_head, &conf->l2vpn_tree, xl); | |
8429abe0 RW |
1578 | |
1579 | switch (ldpd_process) { | |
1580 | case PROC_LDE_ENGINE: | |
1581 | l2vpn_init(xl); | |
1582 | break; | |
1583 | case PROC_LDP_ENGINE: | |
1584 | ldpe_l2vpn_init(xl); | |
1585 | break; | |
1586 | case PROC_MAIN: | |
4af8997d | 1587 | QOBJ_REG (xl, l2vpn); |
8429abe0 RW |
1588 | break; |
1589 | } | |
1590 | continue; | |
1591 | } | |
1592 | ||
1593 | /* update existing l2vpns */ | |
b67c140b | 1594 | merge_l2vpn(conf, l2vpn, xl, ref); |
90d7e7bd | 1595 | RB_REMOVE(l2vpn_head, &xconf->l2vpn_tree, xl); |
b67c140b RW |
1596 | if (ref && *ref == xl) |
1597 | *ref = l2vpn; | |
8429abe0 RW |
1598 | free(xl); |
1599 | } | |
1600 | } | |
1601 | ||
1602 | static void | |
b67c140b | 1603 | merge_l2vpn(struct ldpd_conf *xconf, struct l2vpn *l2vpn, struct l2vpn *xl, void **ref) |
8429abe0 RW |
1604 | { |
1605 | struct l2vpn_if *lif, *ftmp, *xf; | |
1606 | struct l2vpn_pw *pw, *ptmp, *xp; | |
1607 | struct nbr *nbr; | |
1608 | int reset_nbr, reinstall_pwfec, reinstall_tnbr; | |
20bacaeb | 1609 | struct l2vpn_pw_head pw_aux_list; |
8429abe0 RW |
1610 | int previous_pw_type, previous_mtu; |
1611 | ||
1612 | previous_pw_type = l2vpn->pw_type; | |
1613 | previous_mtu = l2vpn->mtu; | |
1614 | ||
1615 | /* merge intefaces */ | |
029c1958 | 1616 | RB_FOREACH_SAFE(lif, l2vpn_if_head, &l2vpn->if_tree, ftmp) { |
8429abe0 | 1617 | /* find deleted interfaces */ |
eac6e3f0 | 1618 | if ((xf = l2vpn_if_find_name(xl, lif->ifname)) == NULL) { |
4af8997d RW |
1619 | if (ldpd_process == PROC_MAIN) |
1620 | QOBJ_UNREG (lif); | |
029c1958 | 1621 | RB_REMOVE(l2vpn_if_head, &l2vpn->if_tree, lif); |
8429abe0 RW |
1622 | free(lif); |
1623 | } | |
1624 | } | |
029c1958 | 1625 | RB_FOREACH_SAFE(xf, l2vpn_if_head, &xl->if_tree, ftmp) { |
8429abe0 | 1626 | /* find new interfaces */ |
eac6e3f0 | 1627 | if ((lif = l2vpn_if_find_name(l2vpn, xf->ifname)) == NULL) { |
029c1958 RW |
1628 | RB_REMOVE(l2vpn_if_head, &xl->if_tree, xf); |
1629 | RB_INSERT(l2vpn_if_head, &l2vpn->if_tree, xf); | |
8429abe0 | 1630 | xf->l2vpn = l2vpn; |
4af8997d RW |
1631 | if (ldpd_process == PROC_MAIN) |
1632 | QOBJ_REG (xf, l2vpn_if); | |
8429abe0 RW |
1633 | continue; |
1634 | } | |
1635 | ||
029c1958 | 1636 | RB_REMOVE(l2vpn_if_head, &xl->if_tree, xf); |
b67c140b RW |
1637 | if (ref && *ref == xf) |
1638 | *ref = lif; | |
8429abe0 RW |
1639 | free(xf); |
1640 | } | |
1641 | ||
eac6e3f0 | 1642 | /* merge active pseudowires */ |
20bacaeb RW |
1643 | RB_INIT(&pw_aux_list); |
1644 | RB_FOREACH_SAFE(pw, l2vpn_pw_head, &l2vpn->pw_tree, ptmp) { | |
eac6e3f0 RW |
1645 | /* find deleted active pseudowires */ |
1646 | if ((xp = l2vpn_pw_find_name(xl, pw->ifname)) == NULL) { | |
8429abe0 RW |
1647 | switch (ldpd_process) { |
1648 | case PROC_LDE_ENGINE: | |
1649 | l2vpn_pw_exit(pw); | |
1650 | break; | |
1651 | case PROC_LDP_ENGINE: | |
1652 | ldpe_l2vpn_pw_exit(pw); | |
1653 | break; | |
1654 | case PROC_MAIN: | |
4af8997d | 1655 | QOBJ_UNREG (pw); |
8429abe0 RW |
1656 | break; |
1657 | } | |
1658 | ||
20bacaeb | 1659 | RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_tree, pw); |
8429abe0 RW |
1660 | free(pw); |
1661 | } | |
1662 | } | |
20bacaeb | 1663 | RB_FOREACH_SAFE(xp, l2vpn_pw_head, &xl->pw_tree, ptmp) { |
eac6e3f0 RW |
1664 | /* find new active pseudowires */ |
1665 | if ((pw = l2vpn_pw_find_name(l2vpn, xp->ifname)) == NULL) { | |
20bacaeb RW |
1666 | RB_REMOVE(l2vpn_pw_head, &xl->pw_tree, xp); |
1667 | RB_INSERT(l2vpn_pw_head, &l2vpn->pw_tree, xp); | |
8429abe0 RW |
1668 | xp->l2vpn = l2vpn; |
1669 | ||
1670 | switch (ldpd_process) { | |
1671 | case PROC_LDE_ENGINE: | |
1672 | l2vpn_pw_init(xp); | |
1673 | break; | |
1674 | case PROC_LDP_ENGINE: | |
1675 | ldpe_l2vpn_pw_init(xp); | |
1676 | break; | |
1677 | case PROC_MAIN: | |
4af8997d | 1678 | QOBJ_REG (xp, l2vpn_pw); |
8429abe0 RW |
1679 | break; |
1680 | } | |
1681 | continue; | |
1682 | } | |
1683 | ||
eac6e3f0 | 1684 | /* update existing active pseudowire */ |
8429abe0 RW |
1685 | if (pw->af != xp->af || |
1686 | ldp_addrcmp(pw->af, &pw->addr, &xp->addr)) | |
1687 | reinstall_tnbr = 1; | |
1688 | else | |
1689 | reinstall_tnbr = 0; | |
1690 | ||
1691 | /* changes that require a session restart */ | |
1692 | if ((pw->flags & (F_PW_STATUSTLV_CONF|F_PW_CWORD_CONF)) != | |
1693 | (xp->flags & (F_PW_STATUSTLV_CONF|F_PW_CWORD_CONF))) | |
1694 | reset_nbr = 1; | |
1695 | else | |
1696 | reset_nbr = 0; | |
1697 | ||
1698 | if (l2vpn->pw_type != xl->pw_type || l2vpn->mtu != xl->mtu || | |
1699 | pw->pwid != xp->pwid || reinstall_tnbr || reset_nbr || | |
1700 | pw->lsr_id.s_addr != xp->lsr_id.s_addr) | |
1701 | reinstall_pwfec = 1; | |
1702 | else | |
1703 | reinstall_pwfec = 0; | |
1704 | ||
eac6e3f0 RW |
1705 | /* check if the pseudowire should be disabled */ |
1706 | if (xp->lsr_id.s_addr == INADDR_ANY || xp->pwid == 0) { | |
1707 | reinstall_tnbr = 0; | |
1708 | reset_nbr = 0; | |
1709 | reinstall_pwfec = 0; | |
1710 | ||
1711 | switch (ldpd_process) { | |
1712 | case PROC_LDE_ENGINE: | |
1713 | l2vpn_pw_exit(pw); | |
1714 | break; | |
1715 | case PROC_LDP_ENGINE: | |
1716 | ldpe_l2vpn_pw_exit(pw); | |
1717 | break; | |
1718 | case PROC_MAIN: | |
1719 | break; | |
1720 | } | |
1721 | ||
1722 | /* remove from active list */ | |
20bacaeb RW |
1723 | RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_tree, pw); |
1724 | RB_INSERT(l2vpn_pw_head, &pw_aux_list, pw); | |
eac6e3f0 RW |
1725 | } |
1726 | ||
8429abe0 RW |
1727 | if (ldpd_process == PROC_LDP_ENGINE) { |
1728 | if (reinstall_tnbr) | |
1729 | ldpe_l2vpn_pw_exit(pw); | |
1730 | if (reset_nbr) { | |
1731 | nbr = nbr_find_ldpid(pw->lsr_id.s_addr); | |
1732 | if (nbr && nbr->state == NBR_STA_OPER) | |
1733 | session_shutdown(nbr, S_SHUTDOWN, 0, 0); | |
1734 | } | |
1735 | } | |
1736 | if (ldpd_process == PROC_LDE_ENGINE && | |
1737 | !reset_nbr && reinstall_pwfec) | |
1738 | l2vpn_pw_exit(pw); | |
1739 | pw->lsr_id = xp->lsr_id; | |
1740 | pw->af = xp->af; | |
1741 | pw->addr = xp->addr; | |
1742 | pw->pwid = xp->pwid; | |
1743 | strlcpy(pw->ifname, xp->ifname, sizeof(pw->ifname)); | |
1744 | pw->ifindex = xp->ifindex; | |
1745 | if (xp->flags & F_PW_CWORD_CONF) | |
1746 | pw->flags |= F_PW_CWORD_CONF; | |
1747 | else | |
1748 | pw->flags &= ~F_PW_CWORD_CONF; | |
1749 | if (xp->flags & F_PW_STATUSTLV_CONF) | |
1750 | pw->flags |= F_PW_STATUSTLV_CONF; | |
1751 | else | |
1752 | pw->flags &= ~F_PW_STATUSTLV_CONF; | |
eac6e3f0 RW |
1753 | if (xp->flags & F_PW_STATIC_NBR_ADDR) |
1754 | pw->flags |= F_PW_STATIC_NBR_ADDR; | |
1755 | else | |
1756 | pw->flags &= ~F_PW_STATIC_NBR_ADDR; | |
8429abe0 RW |
1757 | if (ldpd_process == PROC_LDP_ENGINE && reinstall_tnbr) |
1758 | ldpe_l2vpn_pw_init(pw); | |
1759 | if (ldpd_process == PROC_LDE_ENGINE && | |
1760 | !reset_nbr && reinstall_pwfec) { | |
1761 | l2vpn->pw_type = xl->pw_type; | |
1762 | l2vpn->mtu = xl->mtu; | |
1763 | l2vpn_pw_init(pw); | |
1764 | l2vpn->pw_type = previous_pw_type; | |
1765 | l2vpn->mtu = previous_mtu; | |
1766 | } | |
1767 | ||
20bacaeb | 1768 | RB_REMOVE(l2vpn_pw_head, &xl->pw_tree, xp); |
b67c140b RW |
1769 | if (ref && *ref == xp) |
1770 | *ref = pw; | |
8429abe0 RW |
1771 | free(xp); |
1772 | } | |
1773 | ||
eac6e3f0 | 1774 | /* merge inactive pseudowires */ |
20bacaeb | 1775 | RB_FOREACH_SAFE(pw, l2vpn_pw_head, &l2vpn->pw_inactive_tree, ptmp) { |
eac6e3f0 RW |
1776 | /* find deleted inactive pseudowires */ |
1777 | if ((xp = l2vpn_pw_find_name(xl, pw->ifname)) == NULL) { | |
20bacaeb | 1778 | RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_inactive_tree, pw); |
4af8997d RW |
1779 | if (ldpd_process == PROC_MAIN) |
1780 | QOBJ_UNREG (pw); | |
eac6e3f0 RW |
1781 | free(pw); |
1782 | } | |
1783 | } | |
20bacaeb | 1784 | RB_FOREACH_SAFE(xp, l2vpn_pw_head, &xl->pw_inactive_tree, ptmp) { |
eac6e3f0 RW |
1785 | /* find new inactive pseudowires */ |
1786 | if ((pw = l2vpn_pw_find_name(l2vpn, xp->ifname)) == NULL) { | |
20bacaeb RW |
1787 | RB_REMOVE(l2vpn_pw_head, &xl->pw_inactive_tree, xp); |
1788 | RB_INSERT(l2vpn_pw_head, &l2vpn->pw_inactive_tree, xp); | |
eac6e3f0 | 1789 | xp->l2vpn = l2vpn; |
4af8997d RW |
1790 | if (ldpd_process == PROC_MAIN) |
1791 | QOBJ_REG (xp, l2vpn_pw); | |
eac6e3f0 RW |
1792 | continue; |
1793 | } | |
1794 | ||
1795 | /* update existing inactive pseudowire */ | |
1796 | pw->lsr_id.s_addr = xp->lsr_id.s_addr; | |
1797 | pw->af = xp->af; | |
1798 | pw->addr = xp->addr; | |
1799 | pw->pwid = xp->pwid; | |
1800 | strlcpy(pw->ifname, xp->ifname, sizeof(pw->ifname)); | |
1801 | pw->ifindex = xp->ifindex; | |
1802 | pw->flags = xp->flags; | |
1803 | ||
1804 | /* check if the pseudowire should be activated */ | |
1805 | if (pw->lsr_id.s_addr != INADDR_ANY && pw->pwid != 0) { | |
1806 | /* remove from inactive list */ | |
20bacaeb RW |
1807 | RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_inactive_tree, pw); |
1808 | RB_INSERT(l2vpn_pw_head, &l2vpn->pw_tree, pw); | |
eac6e3f0 RW |
1809 | |
1810 | switch (ldpd_process) { | |
1811 | case PROC_LDE_ENGINE: | |
1812 | l2vpn_pw_init(pw); | |
1813 | break; | |
1814 | case PROC_LDP_ENGINE: | |
1815 | ldpe_l2vpn_pw_init(pw); | |
1816 | break; | |
1817 | case PROC_MAIN: | |
1818 | break; | |
1819 | } | |
1820 | } | |
1821 | ||
20bacaeb | 1822 | RB_REMOVE(l2vpn_pw_head, &xl->pw_inactive_tree, xp); |
b67c140b RW |
1823 | if (ref && *ref == xp) |
1824 | *ref = pw; | |
eac6e3f0 RW |
1825 | free(xp); |
1826 | } | |
1827 | ||
1828 | /* insert pseudowires that were disabled in the inactive list */ | |
20bacaeb RW |
1829 | RB_FOREACH_SAFE(pw, l2vpn_pw_head, &pw_aux_list, ptmp) { |
1830 | RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_tree, pw); | |
1831 | RB_INSERT(l2vpn_pw_head, &l2vpn->pw_inactive_tree, pw); | |
eac6e3f0 RW |
1832 | } |
1833 | ||
8429abe0 RW |
1834 | l2vpn->pw_type = xl->pw_type; |
1835 | l2vpn->mtu = xl->mtu; | |
1836 | strlcpy(l2vpn->br_ifname, xl->br_ifname, sizeof(l2vpn->br_ifname)); | |
1837 | l2vpn->br_ifindex = xl->br_ifindex; | |
1838 | } | |
1839 | ||
1840 | struct ldpd_conf * | |
1841 | config_new_empty(void) | |
1842 | { | |
1843 | struct ldpd_conf *xconf; | |
1844 | ||
1845 | xconf = calloc(1, sizeof(*xconf)); | |
1846 | if (xconf == NULL) | |
1847 | fatal(NULL); | |
1848 | ||
7d3d7491 | 1849 | RB_INIT(&xconf->iface_tree); |
7989cdba | 1850 | RB_INIT(&xconf->tnbr_tree); |
76c4abd1 | 1851 | RB_INIT(&xconf->nbrp_tree); |
90d7e7bd | 1852 | RB_INIT(&xconf->l2vpn_tree); |
8429abe0 RW |
1853 | |
1854 | return (xconf); | |
1855 | } | |
1856 | ||
1857 | void | |
1858 | config_clear(struct ldpd_conf *conf) | |
1859 | { | |
1860 | struct ldpd_conf *xconf; | |
1861 | ||
1862 | /* | |
1863 | * Merge current config with an empty config, this will deactivate | |
1864 | * and deallocate all the interfaces, pseudowires and so on. Before | |
1865 | * merging, copy the router-id and other variables to avoid some | |
1866 | * unnecessary operations, like trying to reset the neighborships. | |
1867 | */ | |
1868 | xconf = config_new_empty(); | |
1869 | xconf->ipv4 = conf->ipv4; | |
1870 | xconf->ipv6 = conf->ipv6; | |
1871 | xconf->rtr_id = conf->rtr_id; | |
1872 | xconf->trans_pref = conf->trans_pref; | |
1873 | xconf->flags = conf->flags; | |
1874 | merge_config(conf, xconf); | |
4af8997d RW |
1875 | if (ldpd_process == PROC_MAIN) |
1876 | QOBJ_UNREG (conf); | |
8429abe0 RW |
1877 | free(conf); |
1878 | } |