]>
Commit | Line | Data |
---|---|---|
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 RW |
23 | |
24 | #include "ldpd.h" | |
25 | #include "ldpe.h" | |
26 | #include "lde.h" | |
27 | #include "control.h" | |
28 | #include "log.h" | |
eac6e3f0 RW |
29 | #include "ldp_debug.h" |
30 | ||
31 | #include <lib/log.h> | |
32 | #include "memory.h" | |
33 | #include "privs.h" | |
34 | #include "sigevent.h" | |
35 | ||
36 | static void ldpe_shutdown(void); | |
37 | static int ldpe_dispatch_main(struct thread *); | |
38 | static int ldpe_dispatch_lde(struct thread *); | |
39 | #ifdef __OpenBSD__ | |
40 | static int ldpe_dispatch_pfkey(struct thread *); | |
41 | #endif | |
8429abe0 RW |
42 | static void ldpe_setup_sockets(int, int, int, int); |
43 | static void ldpe_close_sockets(int); | |
44 | static void ldpe_iface_af_ctl(struct ctl_conn *, int, unsigned int); | |
45 | ||
46 | struct ldpd_conf *leconf; | |
eac6e3f0 | 47 | #ifdef __OpenBSD__ |
8429abe0 | 48 | struct ldpd_sysdep sysdep; |
eac6e3f0 | 49 | #endif |
8429abe0 | 50 | |
28e8294c | 51 | static struct imsgev *iev_main, *iev_main_sync; |
8429abe0 | 52 | static struct imsgev *iev_lde; |
eac6e3f0 RW |
53 | #ifdef __OpenBSD__ |
54 | static struct thread *pfkey_ev; | |
55 | #endif | |
8429abe0 | 56 | |
eac6e3f0 RW |
57 | /* Master of threads. */ |
58 | struct thread_master *master; | |
59 | ||
60 | /* ldpe privileges */ | |
61 | static zebra_capabilities_t _caps_p [] = | |
62 | { | |
63 | ZCAP_BIND, | |
64 | ZCAP_NET_ADMIN | |
65 | }; | |
66 | ||
67 | struct zebra_privs_t ldpe_privs = | |
68 | { | |
eac6e3f0 RW |
69 | #if defined(VTY_GROUP) |
70 | .vty_group = VTY_GROUP, | |
71 | #endif | |
72 | .caps_p = _caps_p, | |
73 | .cap_num_p = array_size(_caps_p), | |
74 | .cap_num_i = 0 | |
75 | }; | |
76 | ||
77 | /* SIGINT / SIGTERM handler. */ | |
8429abe0 | 78 | static void |
eac6e3f0 | 79 | sigint(void) |
8429abe0 | 80 | { |
eac6e3f0 | 81 | ldpe_shutdown(); |
8429abe0 RW |
82 | } |
83 | ||
eac6e3f0 RW |
84 | static struct quagga_signal_t ldpe_signals[] = |
85 | { | |
1e7e440f RW |
86 | { |
87 | .signal = SIGHUP, | |
88 | /* ignore */ | |
89 | }, | |
eac6e3f0 RW |
90 | { |
91 | .signal = SIGINT, | |
92 | .handler = &sigint, | |
93 | }, | |
94 | { | |
95 | .signal = SIGTERM, | |
96 | .handler = &sigint, | |
97 | }, | |
98 | }; | |
99 | ||
8429abe0 RW |
100 | /* label distribution protocol engine */ |
101 | void | |
274f5abf | 102 | ldpe(void) |
8429abe0 | 103 | { |
eac6e3f0 | 104 | struct thread thread; |
8429abe0 | 105 | |
eac6e3f0 | 106 | #ifdef HAVE_SETPROCTITLE |
8429abe0 | 107 | setproctitle("ldp engine"); |
eac6e3f0 | 108 | #endif |
8429abe0 | 109 | ldpd_process = PROC_LDP_ENGINE; |
fa68f9da | 110 | log_procname = log_procnames[ldpd_process]; |
8429abe0 | 111 | |
972a411c | 112 | master = thread_master_create(NULL); |
8429abe0 RW |
113 | |
114 | /* setup signal handler */ | |
eac6e3f0 | 115 | signal_init(master, array_size(ldpe_signals), ldpe_signals); |
8429abe0 | 116 | |
28e8294c RW |
117 | /* setup pipes and event handlers to the parent process */ |
118 | if ((iev_main = calloc(1, sizeof(struct imsgev))) == NULL) | |
8429abe0 | 119 | fatal(NULL); |
28e8294c | 120 | imsg_init(&iev_main->ibuf, LDPD_FD_ASYNC); |
eac6e3f0 | 121 | iev_main->handler_read = ldpe_dispatch_main; |
66e78ae6 QY |
122 | iev_main->ev_read = NULL; |
123 | thread_add_read(master, iev_main->handler_read, iev_main, iev_main->ibuf.fd, | |
124 | &iev_main->ev_read); | |
eac6e3f0 | 125 | iev_main->handler_write = ldp_write_handler; |
28e8294c RW |
126 | |
127 | if ((iev_main_sync = calloc(1, sizeof(struct imsgev))) == NULL) | |
128 | fatal(NULL); | |
129 | imsg_init(&iev_main_sync->ibuf, LDPD_FD_SYNC); | |
eac6e3f0 | 130 | |
274f5abf RW |
131 | /* create base configuration */ |
132 | leconf = config_new_empty(); | |
133 | ||
134 | /* Fetch next active thread. */ | |
135 | while (thread_fetch(master, &thread)) | |
136 | thread_call(&thread); | |
137 | } | |
138 | ||
139 | void | |
140 | ldpe_init(struct ldpd_init *init) | |
141 | { | |
142 | /* drop privileges */ | |
af7e63a3 RW |
143 | ldpe_privs.user = init->user; |
144 | ldpe_privs.group = init->group; | |
37a1f2fb | 145 | zprivs_preinit(&ldpe_privs); |
274f5abf RW |
146 | zprivs_init(&ldpe_privs); |
147 | ||
148 | /* listen on ldpd control socket */ | |
149 | strlcpy(ctl_sock_path, init->ctl_sock_path, sizeof(ctl_sock_path)); | |
150 | if (control_init(ctl_sock_path) == -1) | |
151 | fatalx("control socket setup failed"); | |
152 | TAILQ_INIT(&ctl_conns); | |
153 | control_listen(); | |
154 | ||
274f5abf | 155 | LIST_INIT(&global.addr_list); |
45926e58 | 156 | RB_INIT(global_adj_head, &global.adj_tree); |
274f5abf RW |
157 | TAILQ_INIT(&global.pending_conns); |
158 | if (inet_pton(AF_INET, AllRouters_v4, &global.mcast_addr_v4) != 1) | |
159 | fatal("inet_pton"); | |
160 | if (inet_pton(AF_INET6, AllRouters_v6, &global.mcast_addr_v6) != 1) | |
161 | fatal("inet_pton"); | |
eac6e3f0 | 162 | #ifdef __OpenBSD__ |
274f5abf | 163 | global.pfkeysock = pfkey_init(); |
66e78ae6 QY |
164 | if (sysdep.no_pfkey == 0) { |
165 | pfkey_ev = NULL; | |
166 | thread_add_read(master, ldpe_dispatch_pfkey, NULL, global.pfkeysock, | |
167 | &pfkey_ev); | |
168 | } | |
eac6e3f0 | 169 | #endif |
8429abe0 RW |
170 | |
171 | /* mark sockets as closed */ | |
172 | global.ipv4.ldp_disc_socket = -1; | |
173 | global.ipv4.ldp_edisc_socket = -1; | |
174 | global.ipv4.ldp_session_socket = -1; | |
175 | global.ipv6.ldp_disc_socket = -1; | |
176 | global.ipv6.ldp_edisc_socket = -1; | |
177 | global.ipv6.ldp_session_socket = -1; | |
178 | ||
8429abe0 RW |
179 | if ((pkt_ptr = calloc(1, IBUF_READ_SIZE)) == NULL) |
180 | fatal(__func__); | |
181 | ||
274f5abf | 182 | accept_init(); |
8429abe0 RW |
183 | } |
184 | ||
eac6e3f0 | 185 | static void |
8429abe0 RW |
186 | ldpe_shutdown(void) |
187 | { | |
188 | struct if_addr *if_addr; | |
189 | struct adj *adj; | |
190 | ||
191 | /* close pipes */ | |
835a7376 RW |
192 | if (iev_lde) { |
193 | msgbuf_write(&iev_lde->ibuf.w); | |
194 | msgbuf_clear(&iev_lde->ibuf.w); | |
195 | close(iev_lde->ibuf.fd); | |
196 | } | |
8429abe0 RW |
197 | msgbuf_write(&iev_main->ibuf.w); |
198 | msgbuf_clear(&iev_main->ibuf.w); | |
199 | close(iev_main->ibuf.fd); | |
28e8294c RW |
200 | msgbuf_clear(&iev_main_sync->ibuf.w); |
201 | close(iev_main_sync->ibuf.fd); | |
8429abe0 | 202 | |
274f5abf | 203 | control_cleanup(ctl_sock_path); |
8429abe0 RW |
204 | config_clear(leconf); |
205 | ||
eac6e3f0 | 206 | #ifdef __OpenBSD__ |
8429abe0 | 207 | if (sysdep.no_pfkey == 0) { |
eac6e3f0 | 208 | THREAD_READ_OFF(pfkey_ev); |
8429abe0 RW |
209 | close(global.pfkeysock); |
210 | } | |
eac6e3f0 | 211 | #endif |
8429abe0 RW |
212 | ldpe_close_sockets(AF_INET); |
213 | ldpe_close_sockets(AF_INET6); | |
214 | ||
215 | /* remove addresses from global list */ | |
216 | while ((if_addr = LIST_FIRST(&global.addr_list)) != NULL) { | |
217 | LIST_REMOVE(if_addr, entry); | |
218 | free(if_addr); | |
219 | } | |
45926e58 | 220 | while ((adj = RB_ROOT(global_adj_head, &global.adj_tree)) != NULL) |
8429abe0 RW |
221 | adj_del(adj, S_SHUTDOWN); |
222 | ||
223 | /* clean up */ | |
835a7376 RW |
224 | if (iev_lde) |
225 | free(iev_lde); | |
8429abe0 | 226 | free(iev_main); |
28e8294c | 227 | free(iev_main_sync); |
8429abe0 RW |
228 | free(pkt_ptr); |
229 | ||
230 | log_info("ldp engine exiting"); | |
231 | exit(0); | |
232 | } | |
233 | ||
234 | /* imesg */ | |
235 | int | |
236 | ldpe_imsg_compose_parent(int type, pid_t pid, void *data, uint16_t datalen) | |
237 | { | |
238 | return (imsg_compose_event(iev_main, type, 0, pid, -1, data, datalen)); | |
239 | } | |
240 | ||
f2232fdf RW |
241 | void |
242 | ldpe_imsg_compose_parent_sync(int type, pid_t pid, void *data, uint16_t datalen) | |
243 | { | |
244 | imsg_compose_event(iev_main_sync, type, 0, pid, -1, data, datalen); | |
245 | imsg_flush(&iev_main_sync->ibuf); | |
246 | } | |
247 | ||
8429abe0 RW |
248 | int |
249 | ldpe_imsg_compose_lde(int type, uint32_t peerid, pid_t pid, void *data, | |
250 | uint16_t datalen) | |
251 | { | |
252 | return (imsg_compose_event(iev_lde, type, peerid, pid, -1, | |
253 | data, datalen)); | |
254 | } | |
255 | ||
256 | /* ARGSUSED */ | |
eac6e3f0 RW |
257 | static int |
258 | ldpe_dispatch_main(struct thread *thread) | |
8429abe0 RW |
259 | { |
260 | static struct ldpd_conf *nconf; | |
261 | struct iface *niface; | |
262 | struct tnbr *ntnbr; | |
263 | struct nbr_params *nnbrp; | |
26519d8c | 264 | static struct l2vpn *l2vpn, *nl2vpn; |
52b530fc RW |
265 | struct l2vpn_if *lif, *nlif; |
266 | struct l2vpn_pw *pw, *npw; | |
8429abe0 | 267 | struct imsg imsg; |
eac6e3f0 RW |
268 | int fd = THREAD_FD(thread); |
269 | struct imsgev *iev = THREAD_ARG(thread); | |
8429abe0 RW |
270 | struct imsgbuf *ibuf = &iev->ibuf; |
271 | struct iface *iface = NULL; | |
272 | struct kif *kif; | |
273 | int af; | |
274 | enum socket_type *socket_type; | |
275 | static int disc_socket = -1; | |
276 | static int edisc_socket = -1; | |
277 | static int session_socket = -1; | |
278 | struct nbr *nbr; | |
eac6e3f0 | 279 | #ifdef __OpenBSD__ |
8429abe0 | 280 | struct nbr_params *nbrp; |
eac6e3f0 | 281 | #endif |
8429abe0 RW |
282 | int n, shut = 0; |
283 | ||
eac6e3f0 RW |
284 | iev->ev_read = NULL; |
285 | ||
286 | if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN) | |
287 | fatal("imsg_read error"); | |
288 | if (n == 0) /* connection closed */ | |
289 | shut = 1; | |
8429abe0 RW |
290 | |
291 | for (;;) { | |
292 | if ((n = imsg_get(ibuf, &imsg)) == -1) | |
293 | fatal("ldpe_dispatch_main: imsg_get error"); | |
294 | if (n == 0) | |
295 | break; | |
296 | ||
297 | switch (imsg.hdr.type) { | |
298 | case IMSG_IFSTATUS: | |
299 | if (imsg.hdr.len != IMSG_HEADER_SIZE + | |
300 | sizeof(struct kif)) | |
301 | fatalx("IFSTATUS imsg with wrong len"); | |
302 | kif = imsg.data; | |
303 | ||
eac6e3f0 | 304 | iface = if_lookup_name(leconf, kif->ifname); |
26519d8c RW |
305 | if (iface) { |
306 | if_update_info(iface, kif); | |
61cd1100 | 307 | ldp_if_update(iface, AF_UNSPEC); |
8429abe0 | 308 | break; |
26519d8c | 309 | } |
8429abe0 | 310 | |
26519d8c | 311 | RB_FOREACH(l2vpn, l2vpn_head, &leconf->l2vpn_tree) { |
52bd4c23 | 312 | lif = l2vpn_if_find(l2vpn, kif->ifname); |
26519d8c | 313 | if (lif) { |
52b530fc | 314 | l2vpn_if_update_info(lif, kif); |
26519d8c RW |
315 | l2vpn_if_update(lif); |
316 | break; | |
317 | } | |
52b530fc RW |
318 | pw = l2vpn_pw_find(l2vpn, kif->ifname); |
319 | if (pw) { | |
320 | l2vpn_pw_update_info(pw, kif); | |
321 | break; | |
322 | } | |
26519d8c | 323 | } |
8429abe0 RW |
324 | break; |
325 | case IMSG_NEWADDR: | |
326 | if (imsg.hdr.len != IMSG_HEADER_SIZE + | |
327 | sizeof(struct kaddr)) | |
328 | fatalx("NEWADDR imsg with wrong len"); | |
329 | ||
330 | if_addr_add(imsg.data); | |
331 | break; | |
332 | case IMSG_DELADDR: | |
333 | if (imsg.hdr.len != IMSG_HEADER_SIZE + | |
334 | sizeof(struct kaddr)) | |
335 | fatalx("DELADDR imsg with wrong len"); | |
336 | ||
337 | if_addr_del(imsg.data); | |
338 | break; | |
339 | case IMSG_SOCKET_IPC: | |
340 | if (iev_lde) { | |
341 | log_warnx("%s: received unexpected imsg fd " | |
342 | "to lde", __func__); | |
343 | break; | |
344 | } | |
345 | if ((fd = imsg.fd) == -1) { | |
346 | log_warnx("%s: expected to receive imsg fd to " | |
347 | "lde but didn't receive any", __func__); | |
348 | break; | |
349 | } | |
350 | ||
351 | if ((iev_lde = malloc(sizeof(struct imsgev))) == NULL) | |
352 | fatal(NULL); | |
353 | imsg_init(&iev_lde->ibuf, fd); | |
eac6e3f0 | 354 | iev_lde->handler_read = ldpe_dispatch_lde; |
66e78ae6 QY |
355 | iev_lde->ev_read = NULL; |
356 | thread_add_read(master, iev_lde->handler_read, iev_lde, iev_lde->ibuf.fd, | |
357 | &iev_lde->ev_read); | |
eac6e3f0 RW |
358 | iev_lde->handler_write = ldp_write_handler; |
359 | iev_lde->ev_write = NULL; | |
8429abe0 | 360 | break; |
274f5abf RW |
361 | case IMSG_INIT: |
362 | if (imsg.hdr.len != IMSG_HEADER_SIZE + | |
363 | sizeof(struct ldpd_init)) | |
364 | fatalx("INIT imsg with wrong len"); | |
365 | ||
366 | memcpy(&init, imsg.data, sizeof(init)); | |
367 | ldpe_init(&init); | |
368 | break; | |
8429abe0 RW |
369 | case IMSG_CLOSE_SOCKETS: |
370 | af = imsg.hdr.peerid; | |
371 | ||
372 | RB_FOREACH(nbr, nbr_id_head, &nbrs_by_id) { | |
373 | if (nbr->af != af) | |
374 | continue; | |
375 | session_shutdown(nbr, S_SHUTDOWN, 0, 0); | |
eac6e3f0 | 376 | #ifdef __OpenBSD__ |
8429abe0 | 377 | pfkey_remove(nbr); |
eac6e3f0 | 378 | #endif |
0f7b5df9 | 379 | nbr->auth.method = AUTH_NONE; |
8429abe0 RW |
380 | } |
381 | ldpe_close_sockets(af); | |
382 | if_update_all(af); | |
383 | tnbr_update_all(af); | |
384 | ||
385 | disc_socket = -1; | |
386 | edisc_socket = -1; | |
387 | session_socket = -1; | |
388 | if ((ldp_af_conf_get(leconf, af))->flags & | |
389 | F_LDPD_AF_ENABLED) | |
390 | ldpe_imsg_compose_parent(IMSG_REQUEST_SOCKETS, | |
391 | af, NULL, 0); | |
392 | break; | |
393 | case IMSG_SOCKET_NET: | |
394 | if (imsg.hdr.len != IMSG_HEADER_SIZE + | |
395 | sizeof(enum socket_type)) | |
396 | fatalx("SOCKET_NET imsg with wrong len"); | |
397 | socket_type = imsg.data; | |
398 | ||
399 | switch (*socket_type) { | |
400 | case LDP_SOCKET_DISC: | |
401 | disc_socket = imsg.fd; | |
402 | break; | |
403 | case LDP_SOCKET_EDISC: | |
404 | edisc_socket = imsg.fd; | |
405 | break; | |
406 | case LDP_SOCKET_SESSION: | |
407 | session_socket = imsg.fd; | |
408 | break; | |
409 | } | |
410 | break; | |
411 | case IMSG_SETUP_SOCKETS: | |
412 | af = imsg.hdr.peerid; | |
413 | if (disc_socket == -1 || edisc_socket == -1 || | |
414 | session_socket == -1) { | |
415 | if (disc_socket != -1) | |
416 | close(disc_socket); | |
417 | if (edisc_socket != -1) | |
418 | close(edisc_socket); | |
419 | if (session_socket != -1) | |
420 | close(session_socket); | |
421 | break; | |
422 | } | |
423 | ||
424 | ldpe_setup_sockets(af, disc_socket, edisc_socket, | |
425 | session_socket); | |
426 | if_update_all(af); | |
427 | tnbr_update_all(af); | |
428 | RB_FOREACH(nbr, nbr_id_head, &nbrs_by_id) { | |
429 | if (nbr->af != af) | |
430 | continue; | |
431 | nbr->laddr = (ldp_af_conf_get(leconf, | |
432 | af))->trans_addr; | |
eac6e3f0 | 433 | #ifdef __OpenBSD__ |
8429abe0 | 434 | nbrp = nbr_params_find(leconf, nbr->id); |
0f7b5df9 RW |
435 | if (nbrp) { |
436 | nbr->auth.method = nbrp->auth.method; | |
437 | if (pfkey_establish(nbr, nbrp) == -1) | |
438 | fatalx("pfkey setup failed"); | |
439 | } | |
eac6e3f0 | 440 | #endif |
8429abe0 RW |
441 | if (nbr_session_active_role(nbr)) |
442 | nbr_establish_connection(nbr); | |
443 | } | |
444 | break; | |
eac6e3f0 RW |
445 | case IMSG_RTRID_UPDATE: |
446 | memcpy(&global.rtr_id, imsg.data, | |
447 | sizeof(global.rtr_id)); | |
448 | if (leconf->rtr_id.s_addr == INADDR_ANY) { | |
45a8eba9 | 449 | ldpe_reset_nbrs(AF_UNSPEC); |
eac6e3f0 RW |
450 | } |
451 | if_update_all(AF_UNSPEC); | |
452 | tnbr_update_all(AF_UNSPEC); | |
453 | break; | |
8429abe0 RW |
454 | case IMSG_RECONF_CONF: |
455 | if ((nconf = malloc(sizeof(struct ldpd_conf))) == | |
456 | NULL) | |
457 | fatal(NULL); | |
458 | memcpy(nconf, imsg.data, sizeof(struct ldpd_conf)); | |
459 | ||
45926e58 RZ |
460 | RB_INIT(iface_head, &nconf->iface_tree); |
461 | RB_INIT(tnbr_head, &nconf->tnbr_tree); | |
462 | RB_INIT(nbrp_head, &nconf->nbrp_tree); | |
463 | RB_INIT(l2vpn_head, &nconf->l2vpn_tree); | |
8429abe0 RW |
464 | break; |
465 | case IMSG_RECONF_IFACE: | |
466 | if ((niface = malloc(sizeof(struct iface))) == NULL) | |
467 | fatal(NULL); | |
468 | memcpy(niface, imsg.data, sizeof(struct iface)); | |
469 | ||
7d3d7491 | 470 | RB_INSERT(iface_head, &nconf->iface_tree, niface); |
8429abe0 RW |
471 | break; |
472 | case IMSG_RECONF_TNBR: | |
473 | if ((ntnbr = malloc(sizeof(struct tnbr))) == NULL) | |
474 | fatal(NULL); | |
475 | memcpy(ntnbr, imsg.data, sizeof(struct tnbr)); | |
476 | ||
7989cdba | 477 | RB_INSERT(tnbr_head, &nconf->tnbr_tree, ntnbr); |
8429abe0 RW |
478 | break; |
479 | case IMSG_RECONF_NBRP: | |
480 | if ((nnbrp = malloc(sizeof(struct nbr_params))) == NULL) | |
481 | fatal(NULL); | |
482 | memcpy(nnbrp, imsg.data, sizeof(struct nbr_params)); | |
483 | ||
76c4abd1 | 484 | RB_INSERT(nbrp_head, &nconf->nbrp_tree, nnbrp); |
8429abe0 RW |
485 | break; |
486 | case IMSG_RECONF_L2VPN: | |
487 | if ((nl2vpn = malloc(sizeof(struct l2vpn))) == NULL) | |
488 | fatal(NULL); | |
489 | memcpy(nl2vpn, imsg.data, sizeof(struct l2vpn)); | |
490 | ||
45926e58 RZ |
491 | RB_INIT(l2vpn_if_head, &nl2vpn->if_tree); |
492 | RB_INIT(l2vpn_pw_head, &nl2vpn->pw_tree); | |
493 | RB_INIT(l2vpn_pw_head, &nl2vpn->pw_inactive_tree); | |
8429abe0 | 494 | |
90d7e7bd | 495 | RB_INSERT(l2vpn_head, &nconf->l2vpn_tree, nl2vpn); |
8429abe0 RW |
496 | break; |
497 | case IMSG_RECONF_L2VPN_IF: | |
498 | if ((nlif = malloc(sizeof(struct l2vpn_if))) == NULL) | |
499 | fatal(NULL); | |
500 | memcpy(nlif, imsg.data, sizeof(struct l2vpn_if)); | |
501 | ||
029c1958 | 502 | RB_INSERT(l2vpn_if_head, &nl2vpn->if_tree, nlif); |
8429abe0 RW |
503 | break; |
504 | case IMSG_RECONF_L2VPN_PW: | |
505 | if ((npw = malloc(sizeof(struct l2vpn_pw))) == NULL) | |
506 | fatal(NULL); | |
507 | memcpy(npw, imsg.data, sizeof(struct l2vpn_pw)); | |
508 | ||
20bacaeb | 509 | RB_INSERT(l2vpn_pw_head, &nl2vpn->pw_tree, npw); |
8429abe0 | 510 | break; |
eac6e3f0 RW |
511 | case IMSG_RECONF_L2VPN_IPW: |
512 | if ((npw = malloc(sizeof(struct l2vpn_pw))) == NULL) | |
513 | fatal(NULL); | |
514 | memcpy(npw, imsg.data, sizeof(struct l2vpn_pw)); | |
515 | ||
20bacaeb | 516 | RB_INSERT(l2vpn_pw_head, &nl2vpn->pw_inactive_tree, npw); |
eac6e3f0 | 517 | break; |
8429abe0 RW |
518 | case IMSG_RECONF_END: |
519 | merge_config(leconf, nconf); | |
1d75a89d | 520 | ldp_clear_config(nconf); |
8429abe0 RW |
521 | nconf = NULL; |
522 | global.conf_seqnum++; | |
523 | break; | |
8429abe0 RW |
524 | case IMSG_CTL_END: |
525 | control_imsg_relay(&imsg); | |
526 | break; | |
eac6e3f0 RW |
527 | case IMSG_DEBUG_UPDATE: |
528 | if (imsg.hdr.len != IMSG_HEADER_SIZE + | |
529 | sizeof(ldp_debug)) { | |
530 | log_warnx("%s: wrong imsg len", __func__); | |
531 | break; | |
532 | } | |
533 | memcpy(&ldp_debug, imsg.data, sizeof(ldp_debug)); | |
534 | break; | |
8429abe0 RW |
535 | default: |
536 | log_debug("ldpe_dispatch_main: error handling imsg %d", | |
537 | imsg.hdr.type); | |
538 | break; | |
539 | } | |
540 | imsg_free(&imsg); | |
541 | } | |
542 | if (!shut) | |
543 | imsg_event_add(iev); | |
544 | else { | |
eac6e3f0 RW |
545 | /* this pipe is dead, so remove the event handlers and exit */ |
546 | THREAD_READ_OFF(iev->ev_read); | |
547 | THREAD_WRITE_OFF(iev->ev_write); | |
548 | ldpe_shutdown(); | |
8429abe0 | 549 | } |
eac6e3f0 RW |
550 | |
551 | return (0); | |
8429abe0 RW |
552 | } |
553 | ||
554 | /* ARGSUSED */ | |
eac6e3f0 RW |
555 | static int |
556 | ldpe_dispatch_lde(struct thread *thread) | |
8429abe0 | 557 | { |
eac6e3f0 | 558 | struct imsgev *iev = THREAD_ARG(thread); |
8429abe0 RW |
559 | struct imsgbuf *ibuf = &iev->ibuf; |
560 | struct imsg imsg; | |
236c6935 RW |
561 | struct map *map; |
562 | struct notify_msg *nm; | |
563 | struct nbr *nbr; | |
8429abe0 | 564 | int n, shut = 0; |
8429abe0 | 565 | |
eac6e3f0 RW |
566 | iev->ev_read = NULL; |
567 | ||
568 | if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN) | |
569 | fatal("imsg_read error"); | |
570 | if (n == 0) /* connection closed */ | |
571 | shut = 1; | |
8429abe0 RW |
572 | |
573 | for (;;) { | |
574 | if ((n = imsg_get(ibuf, &imsg)) == -1) | |
575 | fatal("ldpe_dispatch_lde: imsg_get error"); | |
576 | if (n == 0) | |
577 | break; | |
578 | ||
579 | switch (imsg.hdr.type) { | |
580 | case IMSG_MAPPING_ADD: | |
581 | case IMSG_RELEASE_ADD: | |
582 | case IMSG_REQUEST_ADD: | |
583 | case IMSG_WITHDRAW_ADD: | |
236c6935 RW |
584 | if (imsg.hdr.len - IMSG_HEADER_SIZE != |
585 | sizeof(struct map)) | |
8429abe0 | 586 | fatalx("invalid size of map request"); |
236c6935 | 587 | map = imsg.data; |
8429abe0 RW |
588 | |
589 | nbr = nbr_find_peerid(imsg.hdr.peerid); | |
590 | if (nbr == NULL) { | |
591 | log_debug("ldpe_dispatch_lde: cannot find " | |
592 | "neighbor"); | |
593 | break; | |
594 | } | |
595 | if (nbr->state != NBR_STA_OPER) | |
596 | break; | |
597 | ||
598 | switch (imsg.hdr.type) { | |
599 | case IMSG_MAPPING_ADD: | |
236c6935 | 600 | mapping_list_add(&nbr->mapping_list, map); |
8429abe0 RW |
601 | break; |
602 | case IMSG_RELEASE_ADD: | |
236c6935 | 603 | mapping_list_add(&nbr->release_list, map); |
8429abe0 RW |
604 | break; |
605 | case IMSG_REQUEST_ADD: | |
236c6935 | 606 | mapping_list_add(&nbr->request_list, map); |
8429abe0 RW |
607 | break; |
608 | case IMSG_WITHDRAW_ADD: | |
236c6935 | 609 | mapping_list_add(&nbr->withdraw_list, map); |
8429abe0 RW |
610 | break; |
611 | } | |
612 | break; | |
613 | case IMSG_MAPPING_ADD_END: | |
614 | case IMSG_RELEASE_ADD_END: | |
615 | case IMSG_REQUEST_ADD_END: | |
616 | case IMSG_WITHDRAW_ADD_END: | |
617 | nbr = nbr_find_peerid(imsg.hdr.peerid); | |
618 | if (nbr == NULL) { | |
619 | log_debug("ldpe_dispatch_lde: cannot find " | |
620 | "neighbor"); | |
621 | break; | |
622 | } | |
623 | if (nbr->state != NBR_STA_OPER) | |
624 | break; | |
625 | ||
626 | switch (imsg.hdr.type) { | |
627 | case IMSG_MAPPING_ADD_END: | |
628 | send_labelmessage(nbr, MSG_TYPE_LABELMAPPING, | |
629 | &nbr->mapping_list); | |
630 | break; | |
631 | case IMSG_RELEASE_ADD_END: | |
632 | send_labelmessage(nbr, MSG_TYPE_LABELRELEASE, | |
633 | &nbr->release_list); | |
634 | break; | |
635 | case IMSG_REQUEST_ADD_END: | |
636 | send_labelmessage(nbr, MSG_TYPE_LABELREQUEST, | |
637 | &nbr->request_list); | |
638 | break; | |
639 | case IMSG_WITHDRAW_ADD_END: | |
640 | send_labelmessage(nbr, MSG_TYPE_LABELWITHDRAW, | |
641 | &nbr->withdraw_list); | |
642 | break; | |
643 | } | |
644 | break; | |
645 | case IMSG_NOTIFICATION_SEND: | |
236c6935 RW |
646 | if (imsg.hdr.len - IMSG_HEADER_SIZE != |
647 | sizeof(struct notify_msg)) | |
8429abe0 | 648 | fatalx("invalid size of OE request"); |
236c6935 | 649 | nm = imsg.data; |
8429abe0 RW |
650 | |
651 | nbr = nbr_find_peerid(imsg.hdr.peerid); | |
652 | if (nbr == NULL) { | |
653 | log_debug("ldpe_dispatch_lde: cannot find " | |
654 | "neighbor"); | |
655 | break; | |
656 | } | |
657 | if (nbr->state != NBR_STA_OPER) | |
658 | break; | |
659 | ||
236c6935 | 660 | send_notification_full(nbr->tcp, nm); |
8429abe0 RW |
661 | break; |
662 | case IMSG_CTL_END: | |
0f7b5df9 RW |
663 | case IMSG_CTL_SHOW_LIB_BEGIN: |
664 | case IMSG_CTL_SHOW_LIB_RCVD: | |
665 | case IMSG_CTL_SHOW_LIB_SENT: | |
666 | case IMSG_CTL_SHOW_LIB_END: | |
8429abe0 RW |
667 | case IMSG_CTL_SHOW_L2VPN_PW: |
668 | case IMSG_CTL_SHOW_L2VPN_BINDING: | |
669 | control_imsg_relay(&imsg); | |
670 | break; | |
671 | default: | |
672 | log_debug("ldpe_dispatch_lde: error handling imsg %d", | |
673 | imsg.hdr.type); | |
674 | break; | |
675 | } | |
676 | imsg_free(&imsg); | |
677 | } | |
678 | if (!shut) | |
679 | imsg_event_add(iev); | |
680 | else { | |
eac6e3f0 RW |
681 | /* this pipe is dead, so remove the event handlers and exit */ |
682 | THREAD_READ_OFF(iev->ev_read); | |
683 | THREAD_WRITE_OFF(iev->ev_write); | |
684 | ldpe_shutdown(); | |
8429abe0 | 685 | } |
eac6e3f0 RW |
686 | |
687 | return (0); | |
8429abe0 RW |
688 | } |
689 | ||
eac6e3f0 | 690 | #ifdef __OpenBSD__ |
8429abe0 | 691 | /* ARGSUSED */ |
eac6e3f0 RW |
692 | static int |
693 | ldpe_dispatch_pfkey(struct thread *thread) | |
8429abe0 | 694 | { |
eac6e3f0 RW |
695 | int fd = THREAD_FD(thread); |
696 | ||
66e78ae6 QY |
697 | pfkey_ev = NULL; |
698 | thread_add_read(master, ldpe_dispatch_pfkey, NULL, global.pfkeysock, | |
699 | &pfkey_ev); | |
eac6e3f0 RW |
700 | |
701 | if (pfkey_read(fd, NULL) == -1) | |
702 | fatal("pfkey_read failed, exiting..."); | |
703 | ||
704 | return (0); | |
8429abe0 | 705 | } |
eac6e3f0 | 706 | #endif /* __OpenBSD__ */ |
8429abe0 RW |
707 | |
708 | static void | |
709 | ldpe_setup_sockets(int af, int disc_socket, int edisc_socket, | |
710 | int session_socket) | |
711 | { | |
712 | struct ldpd_af_global *af_global; | |
713 | ||
714 | af_global = ldp_af_global_get(&global, af); | |
715 | ||
716 | /* discovery socket */ | |
717 | af_global->ldp_disc_socket = disc_socket; | |
66e78ae6 QY |
718 | af_global->disc_ev = NULL; |
719 | thread_add_read(master, disc_recv_packet, &af_global->disc_ev, af_global->ldp_disc_socket, | |
720 | &af_global->disc_ev); | |
8429abe0 RW |
721 | |
722 | /* extended discovery socket */ | |
723 | af_global->ldp_edisc_socket = edisc_socket; | |
66e78ae6 QY |
724 | af_global->edisc_ev = NULL; |
725 | thread_add_read(master, disc_recv_packet, &af_global->edisc_ev, af_global->ldp_edisc_socket, | |
726 | &af_global->edisc_ev); | |
8429abe0 RW |
727 | |
728 | /* session socket */ | |
729 | af_global->ldp_session_socket = session_socket; | |
730 | accept_add(af_global->ldp_session_socket, session_accept, NULL); | |
731 | } | |
732 | ||
733 | static void | |
734 | ldpe_close_sockets(int af) | |
735 | { | |
736 | struct ldpd_af_global *af_global; | |
737 | ||
738 | af_global = ldp_af_global_get(&global, af); | |
739 | ||
740 | /* discovery socket */ | |
eac6e3f0 | 741 | THREAD_READ_OFF(af_global->disc_ev); |
8429abe0 RW |
742 | if (af_global->ldp_disc_socket != -1) { |
743 | close(af_global->ldp_disc_socket); | |
744 | af_global->ldp_disc_socket = -1; | |
745 | } | |
746 | ||
747 | /* extended discovery socket */ | |
eac6e3f0 | 748 | THREAD_READ_OFF(af_global->edisc_ev); |
8429abe0 RW |
749 | if (af_global->ldp_edisc_socket != -1) { |
750 | close(af_global->ldp_edisc_socket); | |
751 | af_global->ldp_edisc_socket = -1; | |
752 | } | |
753 | ||
754 | /* session socket */ | |
755 | if (af_global->ldp_session_socket != -1) { | |
756 | accept_del(af_global->ldp_session_socket); | |
757 | close(af_global->ldp_session_socket); | |
758 | af_global->ldp_session_socket = -1; | |
759 | } | |
760 | } | |
761 | ||
45a8eba9 RW |
762 | int |
763 | ldpe_acl_check(char *acl_name, int af, union ldpd_addr *addr, uint8_t prefixlen) | |
764 | { | |
765 | return ldp_acl_request(iev_main_sync, acl_name, af, addr, prefixlen); | |
766 | } | |
767 | ||
8429abe0 RW |
768 | void |
769 | ldpe_reset_nbrs(int af) | |
770 | { | |
771 | struct nbr *nbr; | |
772 | ||
773 | RB_FOREACH(nbr, nbr_id_head, &nbrs_by_id) { | |
45a8eba9 | 774 | if (af == AF_UNSPEC || nbr->af == af) |
8429abe0 RW |
775 | session_shutdown(nbr, S_SHUTDOWN, 0, 0); |
776 | } | |
777 | } | |
778 | ||
779 | void | |
780 | ldpe_reset_ds_nbrs(void) | |
781 | { | |
782 | struct nbr *nbr; | |
783 | ||
784 | RB_FOREACH(nbr, nbr_id_head, &nbrs_by_id) { | |
785 | if (nbr->ds_tlv) | |
786 | session_shutdown(nbr, S_SHUTDOWN, 0, 0); | |
787 | } | |
788 | } | |
789 | ||
790 | void | |
791 | ldpe_remove_dynamic_tnbrs(int af) | |
792 | { | |
793 | struct tnbr *tnbr, *safe; | |
794 | ||
7989cdba | 795 | RB_FOREACH_SAFE(tnbr, tnbr_head, &leconf->tnbr_tree, safe) { |
8429abe0 RW |
796 | if (tnbr->af != af) |
797 | continue; | |
798 | ||
799 | tnbr->flags &= ~F_TNBR_DYNAMIC; | |
7989cdba | 800 | tnbr_check(leconf, tnbr); |
8429abe0 RW |
801 | } |
802 | } | |
803 | ||
804 | void | |
805 | ldpe_stop_init_backoff(int af) | |
806 | { | |
807 | struct nbr *nbr; | |
808 | ||
809 | RB_FOREACH(nbr, nbr_id_head, &nbrs_by_id) { | |
810 | if (nbr->af == af && nbr_pending_idtimer(nbr)) { | |
811 | nbr_stop_idtimer(nbr); | |
812 | nbr_establish_connection(nbr); | |
813 | } | |
814 | } | |
815 | } | |
816 | ||
817 | static void | |
818 | ldpe_iface_af_ctl(struct ctl_conn *c, int af, unsigned int idx) | |
819 | { | |
820 | struct iface *iface; | |
821 | struct iface_af *ia; | |
822 | struct ctl_iface *ictl; | |
823 | ||
7d3d7491 | 824 | RB_FOREACH(iface, iface_head, &leconf->iface_tree) { |
8429abe0 RW |
825 | if (idx == 0 || idx == iface->ifindex) { |
826 | ia = iface_af_get(iface, af); | |
827 | if (!ia->enabled) | |
828 | continue; | |
829 | ||
830 | ictl = if_to_ctl(ia); | |
05aac414 | 831 | imsg_compose_event(&c->iev, IMSG_CTL_SHOW_INTERFACE, |
8429abe0 RW |
832 | 0, 0, -1, ictl, sizeof(struct ctl_iface)); |
833 | } | |
834 | } | |
835 | } | |
836 | ||
837 | void | |
838 | ldpe_iface_ctl(struct ctl_conn *c, unsigned int idx) | |
839 | { | |
840 | ldpe_iface_af_ctl(c, AF_INET, idx); | |
841 | ldpe_iface_af_ctl(c, AF_INET6, idx); | |
842 | } | |
843 | ||
844 | void | |
845 | ldpe_adj_ctl(struct ctl_conn *c) | |
bc0eb287 RW |
846 | { |
847 | struct adj *adj; | |
848 | struct ctl_adj *actl; | |
849 | ||
850 | RB_FOREACH(adj, global_adj_head, &global.adj_tree) { | |
851 | actl = adj_to_ctl(adj); | |
852 | imsg_compose_event(&c->iev, IMSG_CTL_SHOW_DISCOVERY, 0, 0, | |
853 | -1, actl, sizeof(struct ctl_adj)); | |
854 | } | |
855 | ||
856 | imsg_compose_event(&c->iev, IMSG_CTL_END, 0, 0, -1, NULL, 0); | |
857 | } | |
858 | ||
859 | void | |
860 | ldpe_adj_detail_ctl(struct ctl_conn *c) | |
8429abe0 | 861 | { |
eac6e3f0 RW |
862 | struct iface *iface; |
863 | struct tnbr *tnbr; | |
864 | struct adj *adj; | |
865 | struct ctl_adj *actl; | |
866 | struct ctl_disc_if ictl; | |
867 | struct ctl_disc_tnbr tctl; | |
8429abe0 | 868 | |
eac6e3f0 RW |
869 | imsg_compose_event(&c->iev, IMSG_CTL_SHOW_DISCOVERY, 0, 0, -1, NULL, 0); |
870 | ||
7d3d7491 | 871 | RB_FOREACH(iface, iface_head, &leconf->iface_tree) { |
eac6e3f0 RW |
872 | memset(&ictl, 0, sizeof(ictl)); |
873 | ictl.active_v4 = (iface->ipv4.state == IF_STA_ACTIVE); | |
874 | ictl.active_v6 = (iface->ipv6.state == IF_STA_ACTIVE); | |
875 | ||
876 | if (!ictl.active_v4 && !ictl.active_v6) | |
877 | continue; | |
878 | ||
879 | strlcpy(ictl.name, iface->name, sizeof(ictl.name)); | |
45926e58 RZ |
880 | if (RB_EMPTY(ia_adj_head, &iface->ipv4.adj_tree) && |
881 | RB_EMPTY(ia_adj_head, &iface->ipv6.adj_tree)) | |
eac6e3f0 RW |
882 | ictl.no_adj = 1; |
883 | imsg_compose_event(&c->iev, IMSG_CTL_SHOW_DISC_IFACE, 0, 0, | |
884 | -1, &ictl, sizeof(ictl)); | |
885 | ||
057d48bd | 886 | RB_FOREACH(adj, ia_adj_head, &iface->ipv4.adj_tree) { |
8429abe0 | 887 | actl = adj_to_ctl(adj); |
eac6e3f0 RW |
888 | imsg_compose_event(&c->iev, IMSG_CTL_SHOW_DISC_ADJ, |
889 | 0, 0, -1, actl, sizeof(struct ctl_adj)); | |
890 | } | |
057d48bd | 891 | RB_FOREACH(adj, ia_adj_head, &iface->ipv6.adj_tree) { |
eac6e3f0 RW |
892 | actl = adj_to_ctl(adj); |
893 | imsg_compose_event(&c->iev, IMSG_CTL_SHOW_DISC_ADJ, | |
8429abe0 RW |
894 | 0, 0, -1, actl, sizeof(struct ctl_adj)); |
895 | } | |
896 | } | |
eac6e3f0 | 897 | |
7989cdba | 898 | RB_FOREACH(tnbr, tnbr_head, &leconf->tnbr_tree) { |
eac6e3f0 RW |
899 | memset(&tctl, 0, sizeof(tctl)); |
900 | tctl.af = tnbr->af; | |
901 | tctl.addr = tnbr->addr; | |
902 | if (tnbr->adj == NULL) | |
903 | tctl.no_adj = 1; | |
904 | ||
905 | imsg_compose_event(&c->iev, IMSG_CTL_SHOW_DISC_TNBR, 0, 0, | |
906 | -1, &tctl, sizeof(tctl)); | |
907 | ||
908 | if (tnbr->adj == NULL) | |
8429abe0 RW |
909 | continue; |
910 | ||
eac6e3f0 RW |
911 | actl = adj_to_ctl(tnbr->adj); |
912 | imsg_compose_event(&c->iev, IMSG_CTL_SHOW_DISC_ADJ, 0, 0, | |
8429abe0 RW |
913 | -1, actl, sizeof(struct ctl_adj)); |
914 | } | |
915 | ||
916 | imsg_compose_event(&c->iev, IMSG_CTL_END, 0, 0, -1, NULL, 0); | |
917 | } | |
918 | ||
919 | void | |
920 | ldpe_nbr_ctl(struct ctl_conn *c) | |
921 | { | |
eac6e3f0 RW |
922 | struct adj *adj; |
923 | struct ctl_adj *actl; | |
8429abe0 RW |
924 | struct nbr *nbr; |
925 | struct ctl_nbr *nctl; | |
926 | ||
927 | RB_FOREACH(nbr, nbr_addr_head, &nbrs_by_addr) { | |
eac6e3f0 RW |
928 | if (nbr->state == NBR_STA_PRESENT) |
929 | continue; | |
930 | ||
8429abe0 RW |
931 | nctl = nbr_to_ctl(nbr); |
932 | imsg_compose_event(&c->iev, IMSG_CTL_SHOW_NBR, 0, 0, -1, nctl, | |
933 | sizeof(struct ctl_nbr)); | |
eac6e3f0 | 934 | |
057d48bd | 935 | RB_FOREACH(adj, nbr_adj_head, &nbr->adj_tree) { |
eac6e3f0 RW |
936 | actl = adj_to_ctl(adj); |
937 | imsg_compose_event(&c->iev, IMSG_CTL_SHOW_NBR_DISC, | |
938 | 0, 0, -1, actl, sizeof(struct ctl_adj)); | |
939 | } | |
940 | ||
941 | imsg_compose_event(&c->iev, IMSG_CTL_SHOW_NBR_END, 0, 0, -1, | |
942 | NULL, 0); | |
8429abe0 RW |
943 | } |
944 | imsg_compose_event(&c->iev, IMSG_CTL_END, 0, 0, -1, NULL, 0); | |
945 | } | |
946 | ||
947 | void | |
948 | mapping_list_add(struct mapping_head *mh, struct map *map) | |
949 | { | |
950 | struct mapping_entry *me; | |
951 | ||
952 | me = calloc(1, sizeof(*me)); | |
953 | if (me == NULL) | |
954 | fatal(__func__); | |
955 | me->map = *map; | |
956 | ||
957 | TAILQ_INSERT_TAIL(mh, me, entry); | |
958 | } | |
959 | ||
960 | void | |
961 | mapping_list_clr(struct mapping_head *mh) | |
962 | { | |
963 | struct mapping_entry *me; | |
964 | ||
965 | while ((me = TAILQ_FIRST(mh)) != NULL) { | |
966 | TAILQ_REMOVE(mh, me, entry); | |
967 | free(me); | |
968 | } | |
969 | } |