File: | src/usr.sbin/ospf6d/ospfe.c |
Warning: | line 1104, column 2 The left operand of '&' is a garbage value |
Press '?' to see keyboard shortcuts
Keyboard shortcuts:
1 | /* $OpenBSD: ospfe.c,v 1.71 2023/12/13 15:34:43 claudio Exp $ */ | |||
2 | ||||
3 | /* | |||
4 | * Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org> | |||
5 | * Copyright (c) 2004 Esben Norby <norby@openbsd.org> | |||
6 | * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org> | |||
7 | * | |||
8 | * Permission to use, copy, modify, and distribute this software for any | |||
9 | * purpose with or without fee is hereby granted, provided that the above | |||
10 | * copyright notice and this permission notice appear in all copies. | |||
11 | * | |||
12 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |||
13 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |||
14 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |||
15 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |||
16 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |||
17 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |||
18 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |||
19 | */ | |||
20 | ||||
21 | #include <sys/types.h> | |||
22 | #include <sys/socket.h> | |||
23 | #include <sys/queue.h> | |||
24 | #include <netinet/in.h> | |||
25 | #include <arpa/inet.h> | |||
26 | #include <net/if_types.h> | |||
27 | #include <stdlib.h> | |||
28 | #include <signal.h> | |||
29 | #include <string.h> | |||
30 | #include <fcntl.h> | |||
31 | #include <pwd.h> | |||
32 | #include <unistd.h> | |||
33 | #include <event.h> | |||
34 | #include <err.h> | |||
35 | #include <errno(*__errno()).h> | |||
36 | #include <stdio.h> | |||
37 | ||||
38 | #include "ospf6.h" | |||
39 | #include "ospf6d.h" | |||
40 | #include "ospfe.h" | |||
41 | #include "rde.h" | |||
42 | #include "control.h" | |||
43 | #include "log.h" | |||
44 | ||||
45 | void ospfe_sig_handler(int, short, void *); | |||
46 | __dead__attribute__((__noreturn__)) void ospfe_shutdown(void); | |||
47 | void orig_rtr_lsa_all(struct area *); | |||
48 | struct iface *find_vlink(struct abr_rtr *); | |||
49 | ||||
50 | struct ospfd_conf *oeconf = NULL((void *)0), *noeconf; | |||
51 | static struct imsgev *iev_main; | |||
52 | static struct imsgev *iev_rde; | |||
53 | int oe_nofib; | |||
54 | ||||
55 | void | |||
56 | ospfe_sig_handler(int sig, short event, void *bula) | |||
57 | { | |||
58 | switch (sig) { | |||
59 | case SIGINT2: | |||
60 | case SIGTERM15: | |||
61 | ospfe_shutdown(); | |||
62 | /* NOTREACHED */ | |||
63 | default: | |||
64 | fatalx("unexpected signal"); | |||
65 | } | |||
66 | } | |||
67 | ||||
68 | /* ospf engine */ | |||
69 | pid_t | |||
70 | ospfe(struct ospfd_conf *xconf, int pipe_parent2ospfe[2], int pipe_ospfe2rde[2], | |||
71 | int pipe_parent2rde[2]) | |||
72 | { | |||
73 | struct area *area; | |||
74 | struct iface *iface; | |||
75 | struct passwd *pw; | |||
76 | struct event ev_sigint, ev_sigterm; | |||
77 | pid_t pid; | |||
78 | ||||
79 | switch (pid = fork()) { | |||
80 | case -1: | |||
81 | fatal("cannot fork"); | |||
82 | case 0: | |||
83 | break; | |||
84 | default: | |||
85 | return (pid); | |||
86 | } | |||
87 | ||||
88 | /* create the raw ip socket */ | |||
89 | if ((xconf->ospf_socket = socket(AF_INET624, | |||
90 | SOCK_RAW3 | SOCK_CLOEXEC0x8000 | SOCK_NONBLOCK0x4000, IPPROTO_OSPF89)) == -1) | |||
91 | fatal("error creating raw socket"); | |||
92 | ||||
93 | /* set some defaults */ | |||
94 | if (if_set_mcast_loop(xconf->ospf_socket) == -1) | |||
95 | fatal("if_set_mcast_loop"); | |||
96 | if (if_set_ipv6_checksum(xconf->ospf_socket) == -1) | |||
97 | fatal("if_set_ipv6_checksum"); | |||
98 | if (if_set_ipv6_pktinfo(xconf->ospf_socket, 1) == -1) | |||
99 | fatal("if_set_ipv6_pktinfo"); | |||
100 | if_set_sockbuf(xconf->ospf_socket); | |||
101 | ||||
102 | oeconf = xconf; | |||
103 | if (oeconf->flags & OSPFD_FLAG_NO_FIB_UPDATE0x0001) | |||
104 | oe_nofib = 1; | |||
105 | ||||
106 | if ((pw = getpwnam(OSPF6D_USER"_ospf6d")) == NULL((void *)0)) | |||
107 | fatal("getpwnam"); | |||
108 | ||||
109 | if (chroot(pw->pw_dir) == -1) | |||
110 | fatal("chroot"); | |||
111 | if (chdir("/") == -1) | |||
112 | fatal("chdir(\"/\")"); | |||
113 | ||||
114 | setproctitle("ospf engine"); | |||
115 | /* | |||
116 | * XXX needed with fork+exec | |||
117 | * log_init(debug, LOG_DAEMON); | |||
118 | * log_setverbose(verbose); | |||
119 | */ | |||
120 | ||||
121 | ospfd_process = PROC_OSPF_ENGINE; | |||
122 | log_procinit(log_procnames[ospfd_process]); | |||
123 | ||||
124 | if (setgroups(1, &pw->pw_gid) || | |||
125 | setresgid(pw->pw_gid, pw->pw_gid, pw->pw_gid) || | |||
126 | setresuid(pw->pw_uid, pw->pw_uid, pw->pw_uid)) | |||
127 | fatal("can't drop privileges"); | |||
128 | ||||
129 | if (pledge("stdio inet mcast recvfd", NULL((void *)0)) == -1) | |||
130 | fatal("pledge"); | |||
131 | ||||
132 | event_init(); | |||
133 | nbr_init(NBR_HASHSIZE128); | |||
134 | lsa_cache_init(LSA_HASHSIZE512); | |||
135 | ||||
136 | /* setup signal handler */ | |||
137 | signal_set(&ev_sigint, SIGINT, ospfe_sig_handler, NULL)event_set(&ev_sigint, 2, 0x08|0x10, ospfe_sig_handler, (( void *)0)); | |||
138 | signal_set(&ev_sigterm, SIGTERM, ospfe_sig_handler, NULL)event_set(&ev_sigterm, 15, 0x08|0x10, ospfe_sig_handler, ( (void *)0)); | |||
139 | signal_add(&ev_sigint, NULL)event_add(&ev_sigint, ((void *)0)); | |||
140 | signal_add(&ev_sigterm, NULL)event_add(&ev_sigterm, ((void *)0)); | |||
141 | signal(SIGPIPE13, SIG_IGN(void (*)(int))1); | |||
142 | signal(SIGHUP1, SIG_IGN(void (*)(int))1); | |||
143 | ||||
144 | /* setup pipes */ | |||
145 | close(pipe_parent2ospfe[0]); | |||
146 | close(pipe_ospfe2rde[1]); | |||
147 | close(pipe_parent2rde[0]); | |||
148 | close(pipe_parent2rde[1]); | |||
149 | ||||
150 | if ((iev_rde = malloc(sizeof(struct imsgev))) == NULL((void *)0) || | |||
151 | (iev_main = malloc(sizeof(struct imsgev))) == NULL((void *)0)) | |||
152 | fatal(NULL((void *)0)); | |||
153 | imsg_init(&iev_rde->ibuf, pipe_ospfe2rde[0]); | |||
154 | iev_rde->handler = ospfe_dispatch_rde; | |||
155 | imsg_init(&iev_main->ibuf, pipe_parent2ospfe[1]); | |||
156 | iev_main->handler = ospfe_dispatch_main; | |||
157 | ||||
158 | /* setup event handler */ | |||
159 | iev_rde->events = EV_READ0x02; | |||
160 | event_set(&iev_rde->ev, iev_rde->ibuf.fd, iev_rde->events, | |||
161 | iev_rde->handler, iev_rde); | |||
162 | event_add(&iev_rde->ev, NULL((void *)0)); | |||
163 | ||||
164 | iev_main->events = EV_READ0x02; | |||
165 | event_set(&iev_main->ev, iev_main->ibuf.fd, iev_main->events, | |||
166 | iev_main->handler, iev_main); | |||
167 | event_add(&iev_main->ev, NULL((void *)0)); | |||
168 | ||||
169 | event_set(&oeconf->ev, oeconf->ospf_socket, EV_READ0x02|EV_PERSIST0x10, | |||
170 | recv_packet, oeconf); | |||
171 | event_add(&oeconf->ev, NULL((void *)0)); | |||
172 | ||||
173 | /* remove unneeded config stuff */ | |||
174 | conf_clear_redist_list(&oeconf->redist_list); | |||
175 | ||||
176 | /* start interfaces */ | |||
177 | LIST_FOREACH(area, &oeconf->area_list, entry)for((area) = ((&oeconf->area_list)->lh_first); (area )!= ((void *)0); (area) = ((area)->entry.le_next)) { | |||
178 | ospfe_demote_area(area, 0); | |||
179 | LIST_FOREACH(iface, &area->iface_list, entry)for((iface) = ((&area->iface_list)->lh_first); (iface )!= ((void *)0); (iface) = ((iface)->entry.le_next)) | |||
180 | if_start(xconf, iface); | |||
181 | } | |||
182 | ||||
183 | event_dispatch(); | |||
184 | ||||
185 | ospfe_shutdown(); | |||
186 | /* NOTREACHED */ | |||
187 | return (0); | |||
188 | } | |||
189 | ||||
190 | __dead__attribute__((__noreturn__)) void | |||
191 | ospfe_shutdown(void) | |||
192 | { | |||
193 | struct area *area; | |||
194 | struct iface *iface; | |||
195 | ||||
196 | /* close pipes */ | |||
197 | msgbuf_write(&iev_rde->ibuf.w); | |||
198 | msgbuf_clear(&iev_rde->ibuf.w); | |||
199 | close(iev_rde->ibuf.fd); | |||
200 | msgbuf_write(&iev_main->ibuf.w); | |||
201 | msgbuf_clear(&iev_main->ibuf.w); | |||
202 | close(iev_main->ibuf.fd); | |||
203 | ||||
204 | /* stop all interfaces and remove all areas */ | |||
205 | while ((area = LIST_FIRST(&oeconf->area_list)((&oeconf->area_list)->lh_first)) != NULL((void *)0)) { | |||
206 | LIST_FOREACH(iface, &area->iface_list, entry)for((iface) = ((&area->iface_list)->lh_first); (iface )!= ((void *)0); (iface) = ((iface)->entry.le_next)) { | |||
207 | if (if_fsm(iface, IF_EVT_DOWN)) { | |||
208 | log_debug("error stopping interface %s", | |||
209 | iface->name); | |||
210 | } | |||
211 | } | |||
212 | LIST_REMOVE(area, entry)do { if ((area)->entry.le_next != ((void *)0)) (area)-> entry.le_next->entry.le_prev = (area)->entry.le_prev; * (area)->entry.le_prev = (area)->entry.le_next; ; ; } while (0); | |||
213 | area_del(area); | |||
214 | } | |||
215 | ||||
216 | close(oeconf->ospf_socket); | |||
217 | ||||
218 | /* clean up */ | |||
219 | free(iev_rde); | |||
220 | free(iev_main); | |||
221 | free(oeconf); | |||
222 | ||||
223 | log_info("ospf engine exiting"); | |||
224 | _exit(0); | |||
225 | } | |||
226 | ||||
227 | /* imesg */ | |||
228 | int | |||
229 | ospfe_imsg_compose_parent(int type, pid_t pid, void *data, u_int16_t datalen) | |||
230 | { | |||
231 | return (imsg_compose_event(iev_main, type, 0, pid, -1, data, datalen)); | |||
232 | } | |||
233 | ||||
234 | int | |||
235 | ospfe_imsg_compose_rde(int type, u_int32_t peerid, pid_t pid, | |||
236 | void *data, u_int16_t datalen) | |||
237 | { | |||
238 | return (imsg_compose_event(iev_rde, type, peerid, pid, -1, | |||
239 | data, datalen)); | |||
240 | } | |||
241 | ||||
242 | void | |||
243 | ospfe_dispatch_main(int fd, short event, void *bula) | |||
244 | { | |||
245 | static struct area *narea; | |||
246 | struct area *area; | |||
247 | struct iface *iface, *ifp, *i; | |||
248 | struct ifaddrchange *ifc; | |||
249 | struct iface_addr *ia, *nia; | |||
250 | struct imsg imsg; | |||
251 | struct imsgev *iev = bula; | |||
252 | struct imsgbuf *ibuf = &iev->ibuf; | |||
253 | int n, stub_changed, shut = 0, isvalid, wasvalid; | |||
254 | ||||
255 | if (event & EV_READ0x02) { | |||
| ||||
256 | if ((n = imsg_read(ibuf)) == -1 && errno(*__errno()) != EAGAIN35) | |||
257 | fatal("imsg_read error"); | |||
258 | if (n == 0) /* connection closed */ | |||
259 | shut = 1; | |||
260 | } | |||
261 | if (event & EV_WRITE0x04) { | |||
262 | if ((n = msgbuf_write(&ibuf->w)) == -1 && errno(*__errno()) != EAGAIN35) | |||
263 | fatal("msgbuf_write"); | |||
264 | if (n == 0) /* connection closed */ | |||
265 | shut = 1; | |||
266 | } | |||
267 | ||||
268 | for (;;) { | |||
269 | if ((n = imsg_get(ibuf, &imsg)) == -1) | |||
270 | fatal("ospfe_dispatch_main: imsg_get error"); | |||
271 | if (n == 0) | |||
272 | break; | |||
273 | ||||
274 | switch (imsg.hdr.type) { | |||
275 | case IMSG_IFINFO: | |||
276 | if (imsg.hdr.len != IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + | |||
277 | sizeof(struct iface)) | |||
278 | fatalx("IFINFO imsg with wrong len"); | |||
279 | ifp = imsg.data; | |||
280 | ||||
281 | LIST_FOREACH(area, &oeconf->area_list, entry)for((area) = ((&oeconf->area_list)->lh_first); (area )!= ((void *)0); (area) = ((area)->entry.le_next)) { | |||
282 | LIST_FOREACH(i, &area->iface_list, entry)for((i) = ((&area->iface_list)->lh_first); (i)!= (( void *)0); (i) = ((i)->entry.le_next)) { | |||
283 | if (strcmp(i->dependon, | |||
284 | ifp->name) == 0) { | |||
285 | log_warnx("interface %s" | |||
286 | " changed state, %s" | |||
287 | " depends on it", | |||
288 | ifp->name, i->name); | |||
289 | i->depend_ok = | |||
290 | ifstate_is_up(ifp); | |||
291 | if (ifstate_is_up(i)) | |||
292 | orig_rtr_lsa(i->area); | |||
293 | } | |||
294 | } | |||
295 | } | |||
296 | ||||
297 | if (!(ifp->cflags & F_IFACE_CONFIGURED0x02)) | |||
298 | break; | |||
299 | iface = if_find(ifp->ifindex); | |||
300 | if (iface == NULL((void *)0)) | |||
301 | fatalx("interface lost in ospfe"); | |||
302 | ||||
303 | wasvalid = (iface->flags & IFF_UP0x1) && | |||
304 | LINK_STATE_IS_UP(iface->linkstate)((iface->linkstate) >= 4 || (iface->linkstate) == 0); | |||
305 | ||||
306 | if_update(iface, ifp->mtu, ifp->flags, ifp->if_type, | |||
307 | ifp->linkstate, ifp->baudrate, ifp->rdomain); | |||
308 | ||||
309 | isvalid = (iface->flags & IFF_UP0x1) && | |||
310 | LINK_STATE_IS_UP(iface->linkstate)((iface->linkstate) >= 4 || (iface->linkstate) == 0); | |||
311 | ||||
312 | if (wasvalid == isvalid) | |||
313 | break; | |||
314 | ||||
315 | if (isvalid) { | |||
316 | if_fsm(iface, IF_EVT_UP); | |||
317 | log_warnx("interface %s up", iface->name); | |||
318 | } else { | |||
319 | if_fsm(iface, IF_EVT_DOWN); | |||
320 | log_warnx("interface %s down", iface->name); | |||
321 | } | |||
322 | break; | |||
323 | case IMSG_IFADDRNEW: | |||
324 | if (imsg.hdr.len != IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + | |||
325 | sizeof(struct ifaddrchange)) | |||
326 | fatalx("IFADDRNEW imsg with wrong len"); | |||
327 | ifc = imsg.data; | |||
328 | ||||
329 | iface = if_find(ifc->ifindex); | |||
330 | if (iface == NULL((void *)0)) | |||
331 | fatalx("IFADDRNEW interface lost in ospfe"); | |||
332 | ||||
333 | if ((ia = calloc(1, sizeof(struct iface_addr))) == | |||
334 | NULL((void *)0)) | |||
335 | fatal("ospfe_dispatch_main IFADDRNEW"); | |||
336 | ia->addr = ifc->addr; | |||
337 | ia->dstbrd = ifc->dstbrd; | |||
338 | ia->prefixlen = ifc->prefixlen; | |||
339 | ||||
340 | TAILQ_INSERT_TAIL(&iface->ifa_list, ia, entry)do { (ia)->entry.tqe_next = ((void *)0); (ia)->entry.tqe_prev = (&iface->ifa_list)->tqh_last; *(&iface->ifa_list )->tqh_last = (ia); (&iface->ifa_list)->tqh_last = &(ia)->entry.tqe_next; } while (0); | |||
341 | orig_link_lsa(iface); | |||
342 | break; | |||
343 | case IMSG_IFADDRDEL: | |||
344 | if (imsg.hdr.len != IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + | |||
345 | sizeof(struct ifaddrchange)) | |||
346 | fatalx("IFADDRDEL imsg with wrong len"); | |||
347 | ifc = imsg.data; | |||
348 | ||||
349 | iface = if_find(ifc->ifindex); | |||
350 | if (iface == NULL((void *)0)) | |||
351 | fatalx("IFADDRDEL interface lost in ospfe"); | |||
352 | ||||
353 | for (ia = TAILQ_FIRST(&iface->ifa_list)((&iface->ifa_list)->tqh_first); ia != NULL((void *)0); | |||
354 | ia = nia) { | |||
355 | nia = TAILQ_NEXT(ia, entry)((ia)->entry.tqe_next); | |||
356 | ||||
357 | if (IN6_ARE_ADDR_EQUAL(&ia->addr,(memcmp(&(&ia->addr)->__u6_addr.__u6_addr8[0], & (&ifc->addr)->__u6_addr.__u6_addr8[0], sizeof(struct in6_addr)) == 0) | |||
358 | &ifc->addr)(memcmp(&(&ia->addr)->__u6_addr.__u6_addr8[0], & (&ifc->addr)->__u6_addr.__u6_addr8[0], sizeof(struct in6_addr)) == 0)) { | |||
359 | TAILQ_REMOVE(&iface->ifa_list, ia,do { if (((ia)->entry.tqe_next) != ((void *)0)) (ia)->entry .tqe_next->entry.tqe_prev = (ia)->entry.tqe_prev; else ( &iface->ifa_list)->tqh_last = (ia)->entry.tqe_prev ; *(ia)->entry.tqe_prev = (ia)->entry.tqe_next; ; ; } while (0) | |||
360 | entry)do { if (((ia)->entry.tqe_next) != ((void *)0)) (ia)->entry .tqe_next->entry.tqe_prev = (ia)->entry.tqe_prev; else ( &iface->ifa_list)->tqh_last = (ia)->entry.tqe_prev ; *(ia)->entry.tqe_prev = (ia)->entry.tqe_next; ; ; } while (0); | |||
361 | free(ia); | |||
362 | break; | |||
363 | } | |||
364 | } | |||
365 | orig_link_lsa(iface); | |||
366 | break; | |||
367 | case IMSG_RECONF_CONF: | |||
368 | if ((noeconf = malloc(sizeof(struct ospfd_conf))) == | |||
369 | NULL((void *)0)) | |||
370 | fatal(NULL((void *)0)); | |||
371 | memcpy(noeconf, imsg.data, sizeof(struct ospfd_conf)); | |||
372 | ||||
373 | LIST_INIT(&noeconf->area_list)do { ((&noeconf->area_list)->lh_first) = ((void *)0 ); } while (0); | |||
374 | LIST_INIT(&noeconf->cand_list)do { ((&noeconf->cand_list)->lh_first) = ((void *)0 ); } while (0); | |||
375 | break; | |||
376 | case IMSG_RECONF_AREA: | |||
377 | if ((narea = area_new()) == NULL((void *)0)) | |||
378 | fatal(NULL((void *)0)); | |||
379 | memcpy(narea, imsg.data, sizeof(struct area)); | |||
380 | ||||
381 | LIST_INIT(&narea->iface_list)do { ((&narea->iface_list)->lh_first) = ((void *)0) ; } while (0); | |||
382 | LIST_INIT(&narea->nbr_list)do { ((&narea->nbr_list)->lh_first) = ((void *)0); } while (0); | |||
383 | RB_INIT(&narea->lsa_tree)do { (&narea->lsa_tree)->rbh_root = ((void *)0); } while (0); | |||
384 | ||||
385 | LIST_INSERT_HEAD(&noeconf->area_list, narea, entry)do { if (((narea)->entry.le_next = (&noeconf->area_list )->lh_first) != ((void *)0)) (&noeconf->area_list)-> lh_first->entry.le_prev = &(narea)->entry.le_next; ( &noeconf->area_list)->lh_first = (narea); (narea)-> entry.le_prev = &(&noeconf->area_list)->lh_first ; } while (0); | |||
386 | break; | |||
387 | case IMSG_RECONF_END: | |||
388 | if ((oeconf->flags & OSPFD_FLAG_STUB_ROUTER0x0002) != | |||
389 | (noeconf->flags & OSPFD_FLAG_STUB_ROUTER0x0002)) | |||
390 | stub_changed = 1; | |||
391 | else | |||
392 | stub_changed = 0; | |||
393 | merge_config(oeconf, noeconf); | |||
394 | noeconf = NULL((void *)0); | |||
395 | if (stub_changed) | |||
396 | orig_rtr_lsa_all(NULL((void *)0)); | |||
397 | break; | |||
398 | case IMSG_CTL_KROUTE: | |||
399 | case IMSG_CTL_KROUTE_ADDR: | |||
400 | case IMSG_CTL_END: | |||
401 | control_imsg_relay(&imsg); | |||
402 | break; | |||
403 | case IMSG_CONTROLFD: | |||
404 | if ((fd = imsg_get_fd(&imsg)) == -1) | |||
405 | fatalx("%s: expected to receive imsg control" | |||
406 | "fd but didn't receive any", __func__); | |||
407 | /* Listen on control socket. */ | |||
408 | control_listen(fd); | |||
409 | if (pledge("stdio inet mcast", NULL((void *)0)) == -1) | |||
410 | fatal("pledge"); | |||
411 | break; | |||
412 | default: | |||
413 | log_debug("ospfe_dispatch_main: error handling imsg %d", | |||
414 | imsg.hdr.type); | |||
415 | break; | |||
416 | } | |||
417 | imsg_free(&imsg); | |||
418 | } | |||
419 | if (!shut) | |||
420 | imsg_event_add(iev); | |||
421 | else { | |||
422 | /* this pipe is dead, so remove the event handler */ | |||
423 | event_del(&iev->ev); | |||
424 | event_loopexit(NULL((void *)0)); | |||
425 | } | |||
426 | } | |||
427 | ||||
428 | void | |||
429 | ospfe_dispatch_rde(int fd, short event, void *bula) | |||
430 | { | |||
431 | struct lsa_hdr lsa_hdr; | |||
432 | struct lsa_link lsa_link; | |||
433 | struct imsgev *iev = bula; | |||
434 | struct imsgbuf *ibuf = &iev->ibuf; | |||
435 | struct nbr *nbr; | |||
436 | struct lsa_hdr *lhp; | |||
437 | struct lsa_ref *ref; | |||
438 | struct area *area; | |||
439 | struct iface *iface; | |||
440 | struct lsa_entry *le; | |||
441 | struct imsg imsg; | |||
442 | struct abr_rtr ar; | |||
443 | int n, noack = 0, shut = 0; | |||
444 | u_int16_t l, age; | |||
445 | ||||
446 | if (event & EV_READ0x02) { | |||
447 | if ((n = imsg_read(ibuf)) == -1 && errno(*__errno()) != EAGAIN35) | |||
448 | fatal("imsg_read error"); | |||
449 | if (n == 0) /* connection closed */ | |||
450 | shut = 1; | |||
451 | } | |||
452 | if (event & EV_WRITE0x04) { | |||
453 | if ((n = msgbuf_write(&ibuf->w)) == -1 && errno(*__errno()) != EAGAIN35) | |||
454 | fatal("msgbuf_write"); | |||
455 | if (n == 0) /* connection closed */ | |||
456 | shut = 1; | |||
457 | } | |||
458 | ||||
459 | for (;;) { | |||
460 | if ((n = imsg_get(ibuf, &imsg)) == -1) | |||
461 | fatal("ospfe_dispatch_rde: imsg_get error"); | |||
462 | if (n == 0) | |||
463 | break; | |||
464 | ||||
465 | switch (imsg.hdr.type) { | |||
466 | case IMSG_DD: | |||
467 | nbr = nbr_find_peerid(imsg.hdr.peerid); | |||
468 | if (nbr == NULL((void *)0)) | |||
469 | break; | |||
470 | ||||
471 | /* put these on my ls_req_list for retrieval */ | |||
472 | lhp = lsa_hdr_new(); | |||
473 | memcpy(lhp, imsg.data, sizeof(*lhp)); | |||
474 | ls_req_list_add(nbr, lhp); | |||
475 | break; | |||
476 | case IMSG_DD_END: | |||
477 | nbr = nbr_find_peerid(imsg.hdr.peerid); | |||
478 | if (nbr == NULL((void *)0)) | |||
479 | break; | |||
480 | ||||
481 | nbr->dd_pending--; | |||
482 | if (nbr->dd_pending == 0 && nbr->state & NBR_STA_LOAD0x0080) { | |||
483 | if (ls_req_list_empty(nbr)) | |||
484 | nbr_fsm(nbr, NBR_EVT_LOAD_DONE); | |||
485 | else | |||
486 | start_ls_req_tx_timer(nbr); | |||
487 | } | |||
488 | break; | |||
489 | case IMSG_DB_SNAPSHOT: | |||
490 | nbr = nbr_find_peerid(imsg.hdr.peerid); | |||
491 | if (nbr == NULL((void *)0)) | |||
492 | break; | |||
493 | if (nbr->state != NBR_STA_SNAP0x0020) /* discard */ | |||
494 | break; | |||
495 | ||||
496 | /* add LSA header to the neighbor db_sum_list */ | |||
497 | lhp = lsa_hdr_new(); | |||
498 | memcpy(lhp, imsg.data, sizeof(*lhp)); | |||
499 | db_sum_list_add(nbr, lhp); | |||
500 | break; | |||
501 | case IMSG_DB_END: | |||
502 | nbr = nbr_find_peerid(imsg.hdr.peerid); | |||
503 | if (nbr == NULL((void *)0)) | |||
504 | break; | |||
505 | ||||
506 | nbr->dd_snapshot = 0; | |||
507 | if (nbr->state != NBR_STA_SNAP0x0020) | |||
508 | break; | |||
509 | ||||
510 | /* snapshot done, start tx of dd packets */ | |||
511 | nbr_fsm(nbr, NBR_EVT_SNAP_DONE); | |||
512 | break; | |||
513 | case IMSG_LS_FLOOD: | |||
514 | nbr = nbr_find_peerid(imsg.hdr.peerid); | |||
515 | if (nbr == NULL((void *)0)) | |||
516 | break; | |||
517 | ||||
518 | l = imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr); | |||
519 | if (l < sizeof(lsa_hdr)) | |||
520 | fatalx("ospfe_dispatch_rde: " | |||
521 | "bad imsg size"); | |||
522 | memcpy(&lsa_hdr, imsg.data, sizeof(lsa_hdr)); | |||
523 | ||||
524 | ref = lsa_cache_add(imsg.data, l); | |||
525 | ||||
526 | if (lsa_hdr.type == htons(LSA_TYPE_EXTERNAL)(__uint16_t)(__builtin_constant_p(0x4005) ? (__uint16_t)(((__uint16_t )(0x4005) & 0xffU) << 8 | ((__uint16_t)(0x4005) & 0xff00U) >> 8) : __swap16md(0x4005))) { | |||
527 | /* | |||
528 | * flood on all areas but stub areas and | |||
529 | * virtual links | |||
530 | */ | |||
531 | LIST_FOREACH(area, &oeconf->area_list, entry)for((area) = ((&oeconf->area_list)->lh_first); (area )!= ((void *)0); (area) = ((area)->entry.le_next)) { | |||
532 | if (area->stub) | |||
533 | continue; | |||
534 | LIST_FOREACH(iface, &area->iface_list,for((iface) = ((&area->iface_list)->lh_first); (iface )!= ((void *)0); (iface) = ((iface)->entry.le_next)) | |||
535 | entry)for((iface) = ((&area->iface_list)->lh_first); (iface )!= ((void *)0); (iface) = ((iface)->entry.le_next)) { | |||
536 | noack += lsa_flood(iface, nbr, | |||
537 | &lsa_hdr, imsg.data); | |||
538 | } | |||
539 | } | |||
540 | } else if (lsa_hdr.type == htons(LSA_TYPE_LINK)(__uint16_t)(__builtin_constant_p(0x0008) ? (__uint16_t)(((__uint16_t )(0x0008) & 0xffU) << 8 | ((__uint16_t)(0x0008) & 0xff00U) >> 8) : __swap16md(0x0008))) { | |||
541 | /* | |||
542 | * Save link-LSA options of neighbor. | |||
543 | * This is needed to originate network-LSA. | |||
544 | */ | |||
545 | if (l - sizeof(lsa_hdr) < sizeof(lsa_link)) | |||
546 | fatalx("ospfe_dispatch_rde: " | |||
547 | "bad imsg link size"); | |||
548 | memcpy(&lsa_link, (char *)imsg.data + | |||
549 | sizeof(lsa_hdr), sizeof(lsa_link)); | |||
550 | nbr->link_options = lsa_link.opts & | |||
551 | htonl(LSA_24_MASK)(__uint32_t)(__builtin_constant_p(0xffffff) ? (__uint32_t)((( __uint32_t)(0xffffff) & 0xff) << 24 | ((__uint32_t) (0xffffff) & 0xff00) << 8 | ((__uint32_t)(0xffffff) & 0xff0000) >> 8 | ((__uint32_t)(0xffffff) & 0xff000000 ) >> 24) : __swap32md(0xffffff)); | |||
552 | ||||
553 | /* | |||
554 | * flood on interface only | |||
555 | */ | |||
556 | noack += lsa_flood(nbr->iface, nbr, | |||
557 | &lsa_hdr, imsg.data); | |||
558 | } else { | |||
559 | /* | |||
560 | * flood on all area interfaces on | |||
561 | * area 0.0.0.0 include also virtual links. | |||
562 | */ | |||
563 | LIST_FOREACH(iface,for((iface) = ((&nbr->iface->area->iface_list)-> lh_first); (iface)!= ((void *)0); (iface) = ((iface)->entry .le_next)) | |||
564 | &nbr->iface->area->iface_list, entry)for((iface) = ((&nbr->iface->area->iface_list)-> lh_first); (iface)!= ((void *)0); (iface) = ((iface)->entry .le_next)) { | |||
565 | noack += lsa_flood(iface, nbr, | |||
566 | &lsa_hdr, imsg.data); | |||
567 | } | |||
568 | /* XXX virtual links */ | |||
569 | } | |||
570 | ||||
571 | /* remove from ls_req_list */ | |||
572 | le = ls_req_list_get(nbr, &lsa_hdr); | |||
573 | if (!(nbr->state & NBR_STA_FULL0x0100) && le != NULL((void *)0)) { | |||
574 | ls_req_list_free(nbr, le); | |||
575 | /* | |||
576 | * XXX no need to ack requested lsa | |||
577 | * the problem is that the RFC is very | |||
578 | * unclear about this. | |||
579 | */ | |||
580 | noack = 1; | |||
581 | } | |||
582 | ||||
583 | if (!noack && nbr->iface != NULL((void *)0) && | |||
584 | nbr->iface->self != nbr) { | |||
585 | if (!(nbr->iface->state & IF_STA_BACKUP0x20) || | |||
586 | nbr->iface->dr == nbr) { | |||
587 | /* delayed ack */ | |||
588 | lhp = lsa_hdr_new(); | |||
589 | memcpy(lhp, &lsa_hdr, sizeof(*lhp)); | |||
590 | ls_ack_list_add(nbr->iface, lhp); | |||
591 | } | |||
592 | } | |||
593 | ||||
594 | lsa_cache_put(ref, nbr); | |||
595 | break; | |||
596 | case IMSG_LS_UPD: | |||
597 | case IMSG_LS_SNAP: | |||
598 | /* | |||
599 | * IMSG_LS_UPD is used in two cases: | |||
600 | * 1. as response to ls requests | |||
601 | * 2. as response to ls updates where the DB | |||
602 | * is newer then the sent LSA | |||
603 | * IMSG_LS_SNAP is used in one case: | |||
604 | * in EXSTART when the LSA has age MaxAge | |||
605 | */ | |||
606 | l = imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr); | |||
607 | if (l < sizeof(lsa_hdr)) | |||
608 | fatalx("ospfe_dispatch_rde: " | |||
609 | "bad imsg size"); | |||
610 | ||||
611 | nbr = nbr_find_peerid(imsg.hdr.peerid); | |||
612 | if (nbr == NULL((void *)0)) | |||
613 | break; | |||
614 | ||||
615 | if (nbr->iface->self == nbr) | |||
616 | break; | |||
617 | ||||
618 | if (imsg.hdr.type == IMSG_LS_SNAP && | |||
619 | nbr->state != NBR_STA_SNAP0x0020) | |||
620 | break; | |||
621 | ||||
622 | memcpy(&age, imsg.data, sizeof(age)); | |||
623 | ref = lsa_cache_add(imsg.data, l); | |||
624 | if (ntohs(age)(__uint16_t)(__builtin_constant_p(age) ? (__uint16_t)(((__uint16_t )(age) & 0xffU) << 8 | ((__uint16_t)(age) & 0xff00U ) >> 8) : __swap16md(age)) >= MAX_AGE3600) | |||
625 | /* add to retransmit list */ | |||
626 | ls_retrans_list_add(nbr, imsg.data, 0, 0); | |||
627 | else | |||
628 | ls_retrans_list_add(nbr, imsg.data, 0, 1); | |||
629 | ||||
630 | lsa_cache_put(ref, nbr); | |||
631 | break; | |||
632 | case IMSG_LS_ACK: | |||
633 | /* | |||
634 | * IMSG_LS_ACK is used in two cases: | |||
635 | * 1. LSA was a duplicate | |||
636 | * 2. LS age is MaxAge and there is no current | |||
637 | * instance in the DB plus no neighbor in state | |||
638 | * Exchange or Loading | |||
639 | */ | |||
640 | nbr = nbr_find_peerid(imsg.hdr.peerid); | |||
641 | if (nbr == NULL((void *)0)) | |||
642 | break; | |||
643 | ||||
644 | if (nbr->iface->self == nbr) | |||
645 | break; | |||
646 | ||||
647 | if (imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr) != sizeof(lsa_hdr)) | |||
648 | fatalx("ospfe_dispatch_rde: bad imsg size"); | |||
649 | memcpy(&lsa_hdr, imsg.data, sizeof(lsa_hdr)); | |||
650 | ||||
651 | /* for case one check for implied acks */ | |||
652 | if (nbr->iface->state & IF_STA_DROTHER0x10) | |||
653 | if (ls_retrans_list_del(nbr->iface->self, | |||
654 | &lsa_hdr) == 0) | |||
655 | break; | |||
656 | if (ls_retrans_list_del(nbr, &lsa_hdr) == 0) | |||
657 | break; | |||
658 | ||||
659 | /* send a direct acknowledgement */ | |||
660 | send_direct_ack(nbr->iface, nbr->addr, imsg.data, | |||
661 | imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr)); | |||
662 | ||||
663 | break; | |||
664 | case IMSG_LS_BADREQ: | |||
665 | nbr = nbr_find_peerid(imsg.hdr.peerid); | |||
666 | if (nbr == NULL((void *)0)) | |||
667 | break; | |||
668 | ||||
669 | if (nbr->iface->self == nbr) | |||
670 | fatalx("ospfe_dispatch_rde: " | |||
671 | "dummy neighbor got BADREQ"); | |||
672 | ||||
673 | nbr_fsm(nbr, NBR_EVT_BAD_LS_REQ); | |||
674 | break; | |||
675 | case IMSG_ABR_UP: | |||
676 | memcpy(&ar, imsg.data, sizeof(ar)); | |||
677 | ||||
678 | if ((iface = find_vlink(&ar)) != NULL((void *)0) && | |||
679 | iface->state == IF_STA_DOWN0x01) | |||
680 | if (if_fsm(iface, IF_EVT_UP)) { | |||
681 | log_debug("error starting interface %s", | |||
682 | iface->name); | |||
683 | } | |||
684 | break; | |||
685 | case IMSG_ABR_DOWN: | |||
686 | memcpy(&ar, imsg.data, sizeof(ar)); | |||
687 | ||||
688 | if ((iface = find_vlink(&ar)) != NULL((void *)0) && | |||
689 | iface->state == IF_STA_POINTTOPOINT0x08) | |||
690 | if (if_fsm(iface, IF_EVT_DOWN)) { | |||
691 | log_debug("error stopping interface %s", | |||
692 | iface->name); | |||
693 | } | |||
694 | break; | |||
695 | case IMSG_CTL_AREA: | |||
696 | case IMSG_CTL_IFACE: | |||
697 | case IMSG_CTL_END: | |||
698 | case IMSG_CTL_SHOW_DATABASE: | |||
699 | case IMSG_CTL_SHOW_DB_EXT: | |||
700 | case IMSG_CTL_SHOW_DB_LINK: | |||
701 | case IMSG_CTL_SHOW_DB_NET: | |||
702 | case IMSG_CTL_SHOW_DB_RTR: | |||
703 | case IMSG_CTL_SHOW_DB_INTRA: | |||
704 | case IMSG_CTL_SHOW_DB_SELF: | |||
705 | case IMSG_CTL_SHOW_DB_SUM: | |||
706 | case IMSG_CTL_SHOW_DB_ASBR: | |||
707 | case IMSG_CTL_SHOW_RIB: | |||
708 | case IMSG_CTL_SHOW_SUM: | |||
709 | case IMSG_CTL_SHOW_SUM_AREA: | |||
710 | control_imsg_relay(&imsg); | |||
711 | break; | |||
712 | default: | |||
713 | log_debug("ospfe_dispatch_rde: error handling imsg %d", | |||
714 | imsg.hdr.type); | |||
715 | break; | |||
716 | } | |||
717 | imsg_free(&imsg); | |||
718 | } | |||
719 | if (!shut) | |||
720 | imsg_event_add(iev); | |||
721 | else { | |||
722 | /* this pipe is dead, so remove the event handler */ | |||
723 | event_del(&iev->ev); | |||
724 | event_loopexit(NULL((void *)0)); | |||
725 | } | |||
726 | } | |||
727 | ||||
728 | struct iface * | |||
729 | find_vlink(struct abr_rtr *ar) | |||
730 | { | |||
731 | struct area *area; | |||
732 | struct iface *iface = NULL((void *)0); | |||
733 | ||||
734 | LIST_FOREACH(area, &oeconf->area_list, entry)for((area) = ((&oeconf->area_list)->lh_first); (area )!= ((void *)0); (area) = ((area)->entry.le_next)) | |||
735 | LIST_FOREACH(iface, &area->iface_list, entry)for((iface) = ((&area->iface_list)->lh_first); (iface )!= ((void *)0); (iface) = ((iface)->entry.le_next)) | |||
736 | if (iface->abr_id.s_addr == ar->abr_id.s_addr && | |||
737 | iface->type == IF_TYPE_VIRTUALLINK && | |||
738 | iface->area->id.s_addr == ar->area.s_addr) { | |||
739 | iface->dst = ar->dst_ip; | |||
740 | iface->addr = ar->addr; | |||
741 | iface->metric = ar->metric; | |||
742 | ||||
743 | return (iface); | |||
744 | } | |||
745 | ||||
746 | return (iface); | |||
747 | } | |||
748 | ||||
749 | void | |||
750 | orig_rtr_lsa_all(struct area *area) | |||
751 | { | |||
752 | struct area *a; | |||
753 | ||||
754 | /* | |||
755 | * update all router LSA in all areas except area itself, | |||
756 | * as this update is already running. | |||
757 | */ | |||
758 | LIST_FOREACH(a, &oeconf->area_list, entry)for((a) = ((&oeconf->area_list)->lh_first); (a)!= ( (void *)0); (a) = ((a)->entry.le_next)) | |||
759 | if (a != area) | |||
760 | orig_rtr_lsa(a); | |||
761 | } | |||
762 | ||||
763 | void | |||
764 | orig_rtr_lsa(struct area *area) | |||
765 | { | |||
766 | struct lsa_hdr lsa_hdr; | |||
767 | struct lsa_rtr lsa_rtr; | |||
768 | struct lsa_rtr_link rtr_link; | |||
769 | struct iface *iface; | |||
770 | struct ibuf *buf; | |||
771 | struct nbr *nbr, *self = NULL((void *)0); | |||
772 | u_int32_t flags; | |||
773 | u_int16_t chksum; | |||
774 | u_int8_t border, virtual = 0; | |||
775 | ||||
776 | log_debug("orig_rtr_lsa: area %s", inet_ntoa(area->id)); | |||
777 | ||||
778 | /* XXX IBUF_READ_SIZE */ | |||
779 | if ((buf = ibuf_dynamic(sizeof(lsa_hdr), IBUF_READ_SIZE65535)) == NULL((void *)0)) | |||
780 | fatal("orig_rtr_lsa"); | |||
781 | ||||
782 | /* reserve space for LSA header and LSA Router header */ | |||
783 | if (ibuf_add_zero(buf, sizeof(lsa_hdr)) == -1) | |||
784 | fatal("orig_rtr_lsa: ibuf_add_zero failed"); | |||
785 | ||||
786 | if (ibuf_add_zero(buf, sizeof(lsa_rtr)) == -1) | |||
787 | fatal("orig_rtr_lsa: ibuf_add_zero failed"); | |||
788 | ||||
789 | /* links */ | |||
790 | LIST_FOREACH(iface, &area->iface_list, entry)for((iface) = ((&area->iface_list)->lh_first); (iface )!= ((void *)0); (iface) = ((iface)->entry.le_next)) { | |||
791 | if (self == NULL((void *)0) && iface->self != NULL((void *)0)) | |||
792 | self = iface->self; | |||
793 | ||||
794 | bzero(&rtr_link, sizeof(rtr_link)); | |||
795 | ||||
796 | switch (iface->type) { | |||
797 | case IF_TYPE_POINTOPOINT: | |||
798 | LIST_FOREACH(nbr, &iface->nbr_list, entry)for((nbr) = ((&iface->nbr_list)->lh_first); (nbr)!= ((void *)0); (nbr) = ((nbr)->entry.le_next)) | |||
799 | if (nbr != iface->self && | |||
800 | nbr->state & NBR_STA_FULL0x0100) | |||
801 | break; | |||
802 | if (nbr && iface->state & IF_STA_POINTTOPOINT0x08) { | |||
803 | log_debug("orig_rtr_lsa: point-to-point, " | |||
804 | "interface %s", iface->name); | |||
805 | rtr_link.type = LINK_TYPE_POINTTOPOINT1; | |||
806 | if (iface->dependon[0] != '\0' && | |||
807 | iface->depend_ok == 0) | |||
808 | rtr_link.metric = MAX_METRIC65535; | |||
809 | else | |||
810 | rtr_link.metric = htons(iface->metric)(__uint16_t)(__builtin_constant_p(iface->metric) ? (__uint16_t )(((__uint16_t)(iface->metric) & 0xffU) << 8 | ( (__uint16_t)(iface->metric) & 0xff00U) >> 8) : __swap16md (iface->metric)); | |||
811 | rtr_link.iface_id = htonl(iface->ifindex)(__uint32_t)(__builtin_constant_p(iface->ifindex) ? (__uint32_t )(((__uint32_t)(iface->ifindex) & 0xff) << 24 | ( (__uint32_t)(iface->ifindex) & 0xff00) << 8 | (( __uint32_t)(iface->ifindex) & 0xff0000) >> 8 | ( (__uint32_t)(iface->ifindex) & 0xff000000) >> 24 ) : __swap32md(iface->ifindex)); | |||
812 | rtr_link.nbr_iface_id = htonl(nbr->iface_id)(__uint32_t)(__builtin_constant_p(nbr->iface_id) ? (__uint32_t )(((__uint32_t)(nbr->iface_id) & 0xff) << 24 | ( (__uint32_t)(nbr->iface_id) & 0xff00) << 8 | ((__uint32_t )(nbr->iface_id) & 0xff0000) >> 8 | ((__uint32_t )(nbr->iface_id) & 0xff000000) >> 24) : __swap32md (nbr->iface_id)); | |||
813 | rtr_link.nbr_rtr_id = nbr->id.s_addr; | |||
814 | if (ibuf_add(buf, &rtr_link, sizeof(rtr_link))) | |||
815 | fatalx("orig_rtr_lsa: ibuf_add failed"); | |||
816 | } | |||
817 | continue; | |||
818 | case IF_TYPE_BROADCAST: | |||
819 | case IF_TYPE_NBMA: | |||
820 | if ((iface->state & IF_STA_MULTI(0x10 | 0x20 | 0x40))) { | |||
821 | if (iface->dr == iface->self) { | |||
822 | LIST_FOREACH(nbr, &iface->nbr_list,for((nbr) = ((&iface->nbr_list)->lh_first); (nbr)!= ((void *)0); (nbr) = ((nbr)->entry.le_next)) | |||
823 | entry)for((nbr) = ((&iface->nbr_list)->lh_first); (nbr)!= ((void *)0); (nbr) = ((nbr)->entry.le_next)) | |||
824 | if (nbr != iface->self && | |||
825 | nbr->state & NBR_STA_FULL0x0100) | |||
826 | break; | |||
827 | } else | |||
828 | nbr = iface->dr; | |||
829 | ||||
830 | if (nbr && nbr->state & NBR_STA_FULL0x0100) { | |||
831 | log_debug("orig_rtr_lsa: transit net, " | |||
832 | "interface %s", iface->name); | |||
833 | ||||
834 | rtr_link.type = LINK_TYPE_TRANSIT_NET2; | |||
835 | if (iface->dependon[0] != '\0' && | |||
836 | iface->depend_ok == 0) | |||
837 | rtr_link.metric = MAX_METRIC65535; | |||
838 | else | |||
839 | rtr_link.metric = | |||
840 | htons(iface->metric)(__uint16_t)(__builtin_constant_p(iface->metric) ? (__uint16_t )(((__uint16_t)(iface->metric) & 0xffU) << 8 | ( (__uint16_t)(iface->metric) & 0xff00U) >> 8) : __swap16md (iface->metric)); | |||
841 | rtr_link.iface_id = htonl(iface->ifindex)(__uint32_t)(__builtin_constant_p(iface->ifindex) ? (__uint32_t )(((__uint32_t)(iface->ifindex) & 0xff) << 24 | ( (__uint32_t)(iface->ifindex) & 0xff00) << 8 | (( __uint32_t)(iface->ifindex) & 0xff0000) >> 8 | ( (__uint32_t)(iface->ifindex) & 0xff000000) >> 24 ) : __swap32md(iface->ifindex)); | |||
842 | rtr_link.nbr_iface_id = htonl(iface->dr->iface_id)(__uint32_t)(__builtin_constant_p(iface->dr->iface_id) ? (__uint32_t)(((__uint32_t)(iface->dr->iface_id) & 0xff ) << 24 | ((__uint32_t)(iface->dr->iface_id) & 0xff00) << 8 | ((__uint32_t)(iface->dr->iface_id ) & 0xff0000) >> 8 | ((__uint32_t)(iface->dr-> iface_id) & 0xff000000) >> 24) : __swap32md(iface-> dr->iface_id)); | |||
843 | rtr_link.nbr_rtr_id = iface->dr->id.s_addr; | |||
844 | if (ibuf_add(buf, &rtr_link, | |||
845 | sizeof(rtr_link))) | |||
846 | fatalx("orig_rtr_lsa: " | |||
847 | "ibuf_add failed"); | |||
848 | break; | |||
849 | } | |||
850 | } | |||
851 | break; | |||
852 | #if 0 /* TODO virtualllink/pointtomulti */ | |||
853 | case IF_TYPE_VIRTUALLINK: | |||
854 | LIST_FOREACH(nbr, &iface->nbr_list, entry)for((nbr) = ((&iface->nbr_list)->lh_first); (nbr)!= ((void *)0); (nbr) = ((nbr)->entry.le_next)) { | |||
855 | if (nbr != iface->self && | |||
856 | nbr->state & NBR_STA_FULL0x0100) | |||
857 | break; | |||
858 | } | |||
859 | if (nbr) { | |||
860 | rtr_link.id = nbr->id.s_addr; | |||
861 | //XXX rtr_link.data = iface->addr.s_addr; | |||
862 | rtr_link.type = LINK_TYPE_VIRTUAL4; | |||
863 | /* RFC 3137: stub router support */ | |||
864 | if (oeconf->flags & OSPFD_FLAG_STUB_ROUTER0x0002 || | |||
865 | oe_nofib) | |||
866 | rtr_link.metric = 0xffff; | |||
867 | else | |||
868 | rtr_link.metric = htons(iface->metric)(__uint16_t)(__builtin_constant_p(iface->metric) ? (__uint16_t )(((__uint16_t)(iface->metric) & 0xffU) << 8 | ( (__uint16_t)(iface->metric) & 0xff00U) >> 8) : __swap16md (iface->metric)); | |||
869 | virtual = 1; | |||
870 | if (ibuf_add(buf, &rtr_link, sizeof(rtr_link))) | |||
871 | fatalx("orig_rtr_lsa: ibuf_add failed"); | |||
872 | ||||
873 | log_debug("orig_rtr_lsa: virtual link, " | |||
874 | "interface %s", iface->name); | |||
875 | } | |||
876 | continue; | |||
877 | case IF_TYPE_POINTOMULTIPOINT: | |||
878 | log_debug("orig_rtr_lsa: stub net, " | |||
879 | "interface %s", iface->name); | |||
880 | //XXX rtr_link.id = iface->addr.s_addr; | |||
881 | rtr_link.data = 0xffffffff; | |||
882 | rtr_link.type = LINK_TYPE_STUB_NET; | |||
883 | rtr_link.metric = htons(iface->metric)(__uint16_t)(__builtin_constant_p(iface->metric) ? (__uint16_t )(((__uint16_t)(iface->metric) & 0xffU) << 8 | ( (__uint16_t)(iface->metric) & 0xff00U) >> 8) : __swap16md (iface->metric)); | |||
884 | if (ibuf_add(buf, &rtr_link, sizeof(rtr_link))) | |||
885 | fatalx("orig_rtr_lsa: ibuf_add failed"); | |||
886 | ||||
887 | LIST_FOREACH(nbr, &iface->nbr_list, entry)for((nbr) = ((&iface->nbr_list)->lh_first); (nbr)!= ((void *)0); (nbr) = ((nbr)->entry.le_next)) { | |||
888 | if (nbr != iface->self && | |||
889 | nbr->state & NBR_STA_FULL0x0100) { | |||
890 | bzero(&rtr_link, sizeof(rtr_link)); | |||
891 | log_debug("orig_rtr_lsa: " | |||
892 | "point-to-multipoint, interface %s", | |||
893 | iface->name); | |||
894 | //XXX rtr_link.id = nbr->addr.s_addr; | |||
895 | //XXX rtr_link.data = iface->addr.s_addr; | |||
896 | rtr_link.type = LINK_TYPE_POINTTOPOINT1; | |||
897 | /* RFC 3137: stub router support */ | |||
898 | if (oe_nofib || oeconf->flags & | |||
899 | OSPFD_FLAG_STUB_ROUTER0x0002) | |||
900 | rtr_link.metric = MAX_METRIC65535; | |||
901 | else if (iface->dependon[0] != '\0' && | |||
902 | iface->dependon_ok == 0) | |||
903 | rtr_link.metric = MAX_METRIC65535; | |||
904 | else | |||
905 | rtr_link.metric = | |||
906 | htons(iface->metric)(__uint16_t)(__builtin_constant_p(iface->metric) ? (__uint16_t )(((__uint16_t)(iface->metric) & 0xffU) << 8 | ( (__uint16_t)(iface->metric) & 0xff00U) >> 8) : __swap16md (iface->metric)); | |||
907 | if (ibuf_add(buf, &rtr_link, | |||
908 | sizeof(rtr_link))) | |||
909 | fatalx("orig_rtr_lsa: " | |||
910 | "ibuf_add failed"); | |||
911 | } | |||
912 | } | |||
913 | continue; | |||
914 | #endif /* TODO virtualllink/pointtomulti */ | |||
915 | default: | |||
916 | fatalx("orig_rtr_lsa: unknown interface type"); | |||
917 | } | |||
918 | } | |||
919 | ||||
920 | /* LSA router header */ | |||
921 | lsa_rtr.opts = 0; | |||
922 | flags = 0; | |||
923 | ||||
924 | /* | |||
925 | * Set the E bit as soon as an as-ext lsa may be redistributed, only | |||
926 | * setting it in case we redistribute something is not worth the fuss. | |||
927 | */ | |||
928 | if (oeconf->redistribute && !area->stub) | |||
929 | flags |= OSPF_RTR_E0x02; | |||
930 | ||||
931 | border = (area_border_router(oeconf) != 0); | |||
932 | if (border != oeconf->border) { | |||
933 | oeconf->border = border; | |||
934 | orig_rtr_lsa_all(area); | |||
935 | } | |||
936 | ||||
937 | if (oeconf->border) | |||
938 | flags |= OSPF_RTR_B0x01; | |||
939 | /* TODO set V flag if a active virtual link ends here and the | |||
940 | * area is the transit area for this link. */ | |||
941 | if (virtual) | |||
942 | flags |= OSPF_RTR_V0x04; | |||
943 | ||||
944 | LSA_24_SETLO(lsa_rtr.opts, area_ospf_options(area))((lsa_rtr.opts) = ((area_ospf_options(area)) & 0xffffff) | ((lsa_rtr.opts) & ~0xffffff)); | |||
945 | LSA_24_SETHI(lsa_rtr.opts, flags)((lsa_rtr.opts) = ((lsa_rtr.opts) & 0xffffff) | (((flags) & 0xff) << 24)); | |||
946 | lsa_rtr.opts = htonl(lsa_rtr.opts)(__uint32_t)(__builtin_constant_p(lsa_rtr.opts) ? (__uint32_t )(((__uint32_t)(lsa_rtr.opts) & 0xff) << 24 | ((__uint32_t )(lsa_rtr.opts) & 0xff00) << 8 | ((__uint32_t)(lsa_rtr .opts) & 0xff0000) >> 8 | ((__uint32_t)(lsa_rtr.opts ) & 0xff000000) >> 24) : __swap32md(lsa_rtr.opts)); | |||
947 | if (ibuf_set(buf, sizeof(lsa_hdr), &lsa_rtr, sizeof(lsa_rtr)) == -1) | |||
948 | fatal("orig_rtr_lsa: ibuf_set failed"); | |||
949 | ||||
950 | /* LSA header */ | |||
951 | lsa_hdr.age = htons(DEFAULT_AGE)(__uint16_t)(__builtin_constant_p(0) ? (__uint16_t)(((__uint16_t )(0) & 0xffU) << 8 | ((__uint16_t)(0) & 0xff00U ) >> 8) : __swap16md(0)); | |||
952 | lsa_hdr.type = htons(LSA_TYPE_ROUTER)(__uint16_t)(__builtin_constant_p(0x2001) ? (__uint16_t)(((__uint16_t )(0x2001) & 0xffU) << 8 | ((__uint16_t)(0x2001) & 0xff00U) >> 8) : __swap16md(0x2001)); | |||
953 | /* XXX needs to be fixed if multiple router-lsa need to be announced */ | |||
954 | lsa_hdr.ls_id = 0; | |||
955 | lsa_hdr.adv_rtr = oeconf->rtr_id.s_addr; | |||
956 | lsa_hdr.seq_num = htonl(INIT_SEQ_NUM)(__uint32_t)(__builtin_constant_p(0x80000001U) ? (__uint32_t) (((__uint32_t)(0x80000001U) & 0xff) << 24 | ((__uint32_t )(0x80000001U) & 0xff00) << 8 | ((__uint32_t)(0x80000001U ) & 0xff0000) >> 8 | ((__uint32_t)(0x80000001U) & 0xff000000) >> 24) : __swap32md(0x80000001U)); | |||
957 | lsa_hdr.len = htons(ibuf_size(buf))(__uint16_t)(__builtin_constant_p(ibuf_size(buf)) ? (__uint16_t )(((__uint16_t)(ibuf_size(buf)) & 0xffU) << 8 | ((__uint16_t )(ibuf_size(buf)) & 0xff00U) >> 8) : __swap16md(ibuf_size (buf))); | |||
958 | lsa_hdr.ls_chksum = 0; /* updated later */ | |||
959 | if (ibuf_set(buf, 0, &lsa_hdr, sizeof(lsa_hdr)) == -1) | |||
960 | fatal("orig_rtr_lsa: ibuf_set failed"); | |||
961 | ||||
962 | chksum = iso_cksum(ibuf_data(buf), ibuf_size(buf), LS_CKSUM_OFFSET__builtin_offsetof(struct lsa_hdr, ls_chksum)); | |||
963 | if (ibuf_set_n16(buf, LS_CKSUM_OFFSET__builtin_offsetof(struct lsa_hdr, ls_chksum), chksum) == -1) | |||
964 | fatal("orig_rtr_lsa: ibuf_set_n16 failed"); | |||
965 | ||||
966 | if (self) | |||
967 | imsg_compose_event(iev_rde, IMSG_LS_UPD, self->peerid, 0, | |||
968 | -1, ibuf_data(buf), ibuf_size(buf)); | |||
969 | else | |||
970 | log_warnx("orig_rtr_lsa: empty area %s", | |||
971 | inet_ntoa(area->id)); | |||
972 | ||||
973 | ibuf_free(buf); | |||
974 | } | |||
975 | ||||
976 | void | |||
977 | orig_net_lsa(struct iface *iface) | |||
978 | { | |||
979 | struct lsa_hdr lsa_hdr; | |||
980 | struct nbr *nbr; | |||
981 | struct ibuf *buf; | |||
982 | struct lsa_net lsa_net; | |||
983 | int num_rtr = 0; | |||
984 | u_int16_t chksum; | |||
985 | ||||
986 | /* XXX IBUF_READ_SIZE */ | |||
987 | if ((buf = ibuf_dynamic(sizeof(lsa_hdr), IBUF_READ_SIZE65535)) == NULL((void *)0)) | |||
988 | fatal("orig_net_lsa"); | |||
989 | ||||
990 | /* reserve space for LSA header and options field */ | |||
991 | if (ibuf_add_zero(buf, sizeof(lsa_hdr) + sizeof(lsa_net)) == -1) | |||
992 | fatal("orig_net_lsa: ibuf_add_zero failed"); | |||
993 | ||||
994 | lsa_net.opts = 0; | |||
995 | /* fully adjacent neighbors + self */ | |||
996 | LIST_FOREACH(nbr, &iface->nbr_list, entry)for((nbr) = ((&iface->nbr_list)->lh_first); (nbr)!= ((void *)0); (nbr) = ((nbr)->entry.le_next)) | |||
997 | if (nbr->state & NBR_STA_FULL0x0100) { | |||
998 | if (ibuf_add(buf, &nbr->id, sizeof(nbr->id))) | |||
999 | fatal("orig_net_lsa: ibuf_add failed"); | |||
1000 | lsa_net.opts |= nbr->link_options; | |||
1001 | num_rtr++; | |||
1002 | } | |||
1003 | ||||
1004 | if (num_rtr == 1) { | |||
1005 | /* non transit net therefore no need to generate a net lsa */ | |||
1006 | ibuf_free(buf); | |||
1007 | return; | |||
1008 | } | |||
1009 | ||||
1010 | /* LSA header */ | |||
1011 | if (iface->state & IF_STA_DR0x40) | |||
1012 | lsa_hdr.age = htons(DEFAULT_AGE)(__uint16_t)(__builtin_constant_p(0) ? (__uint16_t)(((__uint16_t )(0) & 0xffU) << 8 | ((__uint16_t)(0) & 0xff00U ) >> 8) : __swap16md(0)); | |||
1013 | else | |||
1014 | lsa_hdr.age = htons(MAX_AGE)(__uint16_t)(__builtin_constant_p(3600) ? (__uint16_t)(((__uint16_t )(3600) & 0xffU) << 8 | ((__uint16_t)(3600) & 0xff00U ) >> 8) : __swap16md(3600)); | |||
1015 | ||||
1016 | lsa_hdr.type = htons(LSA_TYPE_NETWORK)(__uint16_t)(__builtin_constant_p(0x2002) ? (__uint16_t)(((__uint16_t )(0x2002) & 0xffU) << 8 | ((__uint16_t)(0x2002) & 0xff00U) >> 8) : __swap16md(0x2002)); | |||
1017 | /* for network LSAs, the link state ID equals the interface ID */ | |||
1018 | lsa_hdr.ls_id = htonl(iface->ifindex)(__uint32_t)(__builtin_constant_p(iface->ifindex) ? (__uint32_t )(((__uint32_t)(iface->ifindex) & 0xff) << 24 | ( (__uint32_t)(iface->ifindex) & 0xff00) << 8 | (( __uint32_t)(iface->ifindex) & 0xff0000) >> 8 | ( (__uint32_t)(iface->ifindex) & 0xff000000) >> 24 ) : __swap32md(iface->ifindex)); | |||
1019 | lsa_hdr.adv_rtr = oeconf->rtr_id.s_addr; | |||
1020 | lsa_hdr.seq_num = htonl(INIT_SEQ_NUM)(__uint32_t)(__builtin_constant_p(0x80000001U) ? (__uint32_t) (((__uint32_t)(0x80000001U) & 0xff) << 24 | ((__uint32_t )(0x80000001U) & 0xff00) << 8 | ((__uint32_t)(0x80000001U ) & 0xff0000) >> 8 | ((__uint32_t)(0x80000001U) & 0xff000000) >> 24) : __swap32md(0x80000001U)); | |||
1021 | lsa_hdr.len = htons(ibuf_size(buf))(__uint16_t)(__builtin_constant_p(ibuf_size(buf)) ? (__uint16_t )(((__uint16_t)(ibuf_size(buf)) & 0xffU) << 8 | ((__uint16_t )(ibuf_size(buf)) & 0xff00U) >> 8) : __swap16md(ibuf_size (buf))); | |||
1022 | lsa_hdr.ls_chksum = 0; /* updated later */ | |||
1023 | if (ibuf_set(buf, 0, &lsa_hdr, sizeof(lsa_hdr)) == -1) | |||
1024 | fatal("orig_net_lsa: ibuf_set failed"); | |||
1025 | ||||
1026 | lsa_net.opts &= lsa_net.opts & htonl(LSA_24_MASK)(__uint32_t)(__builtin_constant_p(0xffffff) ? (__uint32_t)((( __uint32_t)(0xffffff) & 0xff) << 24 | ((__uint32_t) (0xffffff) & 0xff00) << 8 | ((__uint32_t)(0xffffff) & 0xff0000) >> 8 | ((__uint32_t)(0xffffff) & 0xff000000 ) >> 24) : __swap32md(0xffffff)); | |||
1027 | if (ibuf_set(buf, sizeof(lsa_hdr), &lsa_net, sizeof(lsa_net)) == -1) | |||
1028 | fatal("orig_net_lsa: ibuf_set failed"); | |||
1029 | ||||
1030 | chksum = iso_cksum(ibuf_data(buf), ibuf_size(buf), LS_CKSUM_OFFSET__builtin_offsetof(struct lsa_hdr, ls_chksum)); | |||
1031 | if (ibuf_set_n16(buf, LS_CKSUM_OFFSET__builtin_offsetof(struct lsa_hdr, ls_chksum), chksum) == -1) | |||
1032 | fatal("orig_net_lsa: ibuf_set_n16 failed"); | |||
1033 | ||||
1034 | imsg_compose_event(iev_rde, IMSG_LS_UPD, iface->self->peerid, 0, | |||
1035 | -1, ibuf_data(buf), ibuf_size(buf)); | |||
1036 | ||||
1037 | ibuf_free(buf); | |||
1038 | } | |||
1039 | ||||
1040 | void | |||
1041 | orig_link_lsa(struct iface *iface) | |||
1042 | { | |||
1043 | struct lsa_hdr lsa_hdr; | |||
1044 | struct lsa_link lsa_link; | |||
1045 | struct lsa_prefix lsa_prefix; | |||
1046 | struct ibuf *buf; | |||
1047 | struct iface_addr *ia; | |||
1048 | struct in6_addr prefix; | |||
1049 | unsigned int num_prefix = 0; | |||
1050 | u_int16_t chksum; | |||
1051 | u_int32_t options; | |||
1052 | ||||
1053 | log_debug("orig_link_lsa: interface %s", iface->name); | |||
1054 | ||||
1055 | switch (iface->type) { | |||
1056 | case IF_TYPE_VIRTUALLINK: /* forbidden by rfc5340 */ | |||
1057 | return; | |||
1058 | case IF_TYPE_BROADCAST: | |||
1059 | case IF_TYPE_NBMA: | |||
1060 | if ((iface->state & IF_STA_MULTI(0x10 | 0x20 | 0x40)) == 0) | |||
1061 | return; | |||
1062 | break; | |||
1063 | case IF_TYPE_POINTOPOINT: | |||
1064 | case IF_TYPE_POINTOMULTIPOINT: | |||
1065 | if ((iface->state & IF_STA_POINTTOPOINT0x08) == 0) | |||
1066 | return; | |||
1067 | break; | |||
1068 | default: | |||
1069 | fatalx("orig_link_lsa: unknown interface type"); | |||
1070 | } | |||
1071 | ||||
1072 | /* XXX IBUF_READ_SIZE */ | |||
1073 | if ((buf = ibuf_dynamic(sizeof(lsa_hdr) + sizeof(lsa_link), | |||
1074 | IBUF_READ_SIZE65535)) == NULL((void *)0)) | |||
1075 | fatal("orig_link_lsa"); | |||
1076 | ||||
1077 | /* reserve space for LSA header and LSA link header */ | |||
1078 | if (ibuf_add_zero(buf, sizeof(lsa_hdr) + sizeof(lsa_link)) == -1) | |||
1079 | fatal("orig_link_lsa: ibuf_add_zero failed"); | |||
1080 | ||||
1081 | /* link-local address, and all prefixes configured on interface */ | |||
1082 | TAILQ_FOREACH(ia, &iface->ifa_list, entry)for((ia) = ((&iface->ifa_list)->tqh_first); (ia) != ((void *)0); (ia) = ((ia)->entry.tqe_next)) { | |||
1083 | if (IN6_IS_ADDR_LINKLOCAL(&ia->addr)(((&ia->addr)->__u6_addr.__u6_addr8[0] == 0xfe) && (((&ia->addr)->__u6_addr.__u6_addr8[1] & 0xc0) == 0x80))) { | |||
1084 | log_debug("orig_link_lsa: link local address %s", | |||
1085 | log_in6addr(&ia->addr)); | |||
1086 | lsa_link.lladdr = ia->addr; | |||
1087 | continue; | |||
1088 | } | |||
1089 | ||||
1090 | lsa_prefix.prefixlen = ia->prefixlen; | |||
1091 | lsa_prefix.options = 0; | |||
1092 | lsa_prefix.metric = 0; | |||
1093 | inet6applymask(&prefix, &ia->addr, ia->prefixlen); | |||
1094 | log_debug("orig_link_lsa: prefix %s", log_in6addr(&prefix)); | |||
1095 | if (ibuf_add(buf, &lsa_prefix, sizeof(lsa_prefix))) | |||
1096 | fatal("orig_link_lsa: ibuf_add failed"); | |||
1097 | if (ibuf_add(buf, &prefix.s6_addr__u6_addr.__u6_addr8[0], | |||
1098 | LSA_PREFIXSIZE(ia->prefixlen)(((ia->prefixlen) + 31)/32 * 4))) | |||
1099 | fatal("orig_link_lsa: ibuf_add failed"); | |||
1100 | num_prefix++; | |||
1101 | } | |||
1102 | ||||
1103 | /* LSA link header (lladdr has already been filled in above) */ | |||
1104 | LSA_24_SETHI(lsa_link.opts, iface->priority)((lsa_link.opts) = ((lsa_link.opts) & 0xffffff) | (((iface ->priority) & 0xff) << 24)); | |||
| ||||
1105 | options = area_ospf_options(iface->area); | |||
1106 | LSA_24_SETLO(lsa_link.opts, options)((lsa_link.opts) = ((options) & 0xffffff) | ((lsa_link.opts ) & ~0xffffff)); | |||
1107 | lsa_link.opts = htonl(lsa_link.opts)(__uint32_t)(__builtin_constant_p(lsa_link.opts) ? (__uint32_t )(((__uint32_t)(lsa_link.opts) & 0xff) << 24 | ((__uint32_t )(lsa_link.opts) & 0xff00) << 8 | ((__uint32_t)(lsa_link .opts) & 0xff0000) >> 8 | ((__uint32_t)(lsa_link.opts ) & 0xff000000) >> 24) : __swap32md(lsa_link.opts)); | |||
1108 | lsa_link.numprefix = htonl(num_prefix)(__uint32_t)(__builtin_constant_p(num_prefix) ? (__uint32_t)( ((__uint32_t)(num_prefix) & 0xff) << 24 | ((__uint32_t )(num_prefix) & 0xff00) << 8 | ((__uint32_t)(num_prefix ) & 0xff0000) >> 8 | ((__uint32_t)(num_prefix) & 0xff000000) >> 24) : __swap32md(num_prefix)); | |||
1109 | if (ibuf_set(buf, sizeof(lsa_hdr), &lsa_link, sizeof(lsa_link)) == -1) | |||
1110 | fatal("orig_link_lsa: ibuf_set failed"); | |||
1111 | ||||
1112 | /* LSA header */ | |||
1113 | lsa_hdr.age = htons(DEFAULT_AGE)(__uint16_t)(__builtin_constant_p(0) ? (__uint16_t)(((__uint16_t )(0) & 0xffU) << 8 | ((__uint16_t)(0) & 0xff00U ) >> 8) : __swap16md(0)); | |||
1114 | lsa_hdr.type = htons(LSA_TYPE_LINK)(__uint16_t)(__builtin_constant_p(0x0008) ? (__uint16_t)(((__uint16_t )(0x0008) & 0xffU) << 8 | ((__uint16_t)(0x0008) & 0xff00U) >> 8) : __swap16md(0x0008)); | |||
1115 | /* for link LSAs, the link state ID equals the interface ID */ | |||
1116 | lsa_hdr.ls_id = htonl(iface->ifindex)(__uint32_t)(__builtin_constant_p(iface->ifindex) ? (__uint32_t )(((__uint32_t)(iface->ifindex) & 0xff) << 24 | ( (__uint32_t)(iface->ifindex) & 0xff00) << 8 | (( __uint32_t)(iface->ifindex) & 0xff0000) >> 8 | ( (__uint32_t)(iface->ifindex) & 0xff000000) >> 24 ) : __swap32md(iface->ifindex)); | |||
1117 | lsa_hdr.adv_rtr = oeconf->rtr_id.s_addr; | |||
1118 | lsa_hdr.seq_num = htonl(INIT_SEQ_NUM)(__uint32_t)(__builtin_constant_p(0x80000001U) ? (__uint32_t) (((__uint32_t)(0x80000001U) & 0xff) << 24 | ((__uint32_t )(0x80000001U) & 0xff00) << 8 | ((__uint32_t)(0x80000001U ) & 0xff0000) >> 8 | ((__uint32_t)(0x80000001U) & 0xff000000) >> 24) : __swap32md(0x80000001U)); | |||
1119 | lsa_hdr.len = htons(ibuf_size(buf))(__uint16_t)(__builtin_constant_p(ibuf_size(buf)) ? (__uint16_t )(((__uint16_t)(ibuf_size(buf)) & 0xffU) << 8 | ((__uint16_t )(ibuf_size(buf)) & 0xff00U) >> 8) : __swap16md(ibuf_size (buf))); | |||
1120 | lsa_hdr.ls_chksum = 0; /* updated later */ | |||
1121 | if (ibuf_set(buf, 0, &lsa_hdr, sizeof(lsa_hdr)) == -1) | |||
1122 | fatal("orig_link_lsa: ibuf_set failed"); | |||
1123 | ||||
1124 | chksum = iso_cksum(ibuf_data(buf), ibuf_size(buf), LS_CKSUM_OFFSET__builtin_offsetof(struct lsa_hdr, ls_chksum)); | |||
1125 | if (ibuf_set_n16(buf, LS_CKSUM_OFFSET__builtin_offsetof(struct lsa_hdr, ls_chksum), chksum) == -1) | |||
1126 | fatal("orig_link_lsa: ibuf_set_n16 failed"); | |||
1127 | ||||
1128 | imsg_compose_event(iev_rde, IMSG_LS_UPD, iface->self->peerid, 0, | |||
1129 | -1, ibuf_data(buf), ibuf_size(buf)); | |||
1130 | ||||
1131 | ibuf_free(buf); | |||
1132 | } | |||
1133 | ||||
1134 | u_int32_t | |||
1135 | ospfe_router_id(void) | |||
1136 | { | |||
1137 | return (oeconf->rtr_id.s_addr); | |||
1138 | } | |||
1139 | ||||
1140 | void | |||
1141 | ospfe_fib_update(int type) | |||
1142 | { | |||
1143 | int old = oe_nofib; | |||
1144 | ||||
1145 | if (type == IMSG_CTL_FIB_COUPLE) | |||
1146 | oe_nofib = 0; | |||
1147 | if (type == IMSG_CTL_FIB_DECOUPLE) | |||
1148 | oe_nofib = 1; | |||
1149 | if (old != oe_nofib) | |||
1150 | orig_rtr_lsa_all(NULL((void *)0)); | |||
1151 | } | |||
1152 | ||||
1153 | void | |||
1154 | ospfe_iface_ctl(struct ctl_conn *c, unsigned int idx) | |||
1155 | { | |||
1156 | struct area *area; | |||
1157 | struct iface *iface; | |||
1158 | struct ctl_iface *ictl; | |||
1159 | ||||
1160 | LIST_FOREACH(area, &oeconf->area_list, entry)for((area) = ((&oeconf->area_list)->lh_first); (area )!= ((void *)0); (area) = ((area)->entry.le_next)) | |||
1161 | LIST_FOREACH(iface, &area->iface_list, entry)for((iface) = ((&area->iface_list)->lh_first); (iface )!= ((void *)0); (iface) = ((iface)->entry.le_next)) | |||
1162 | if (idx == 0 || idx == iface->ifindex) { | |||
1163 | ictl = if_to_ctl(iface); | |||
1164 | imsg_compose_event(&c->iev, | |||
1165 | IMSG_CTL_SHOW_INTERFACE, 0, 0, -1, | |||
1166 | ictl, sizeof(struct ctl_iface)); | |||
1167 | } | |||
1168 | } | |||
1169 | ||||
1170 | void | |||
1171 | ospfe_nbr_ctl(struct ctl_conn *c) | |||
1172 | { | |||
1173 | struct area *area; | |||
1174 | struct iface *iface; | |||
1175 | struct nbr *nbr; | |||
1176 | struct ctl_nbr *nctl; | |||
1177 | ||||
1178 | LIST_FOREACH(area, &oeconf->area_list, entry)for((area) = ((&oeconf->area_list)->lh_first); (area )!= ((void *)0); (area) = ((area)->entry.le_next)) | |||
1179 | LIST_FOREACH(iface, &area->iface_list, entry)for((iface) = ((&area->iface_list)->lh_first); (iface )!= ((void *)0); (iface) = ((iface)->entry.le_next)) | |||
1180 | LIST_FOREACH(nbr, &iface->nbr_list, entry)for((nbr) = ((&iface->nbr_list)->lh_first); (nbr)!= ((void *)0); (nbr) = ((nbr)->entry.le_next)) { | |||
1181 | if (iface->self != nbr) { | |||
1182 | nctl = nbr_to_ctl(nbr); | |||
1183 | imsg_compose_event(&c->iev, | |||
1184 | IMSG_CTL_SHOW_NBR, 0, 0, -1, nctl, | |||
1185 | sizeof(struct ctl_nbr)); | |||
1186 | } | |||
1187 | } | |||
1188 | ||||
1189 | imsg_compose_event(&c->iev, IMSG_CTL_END, 0, 0, -1, NULL((void *)0), 0); | |||
1190 | } | |||
1191 | ||||
1192 | void | |||
1193 | ospfe_demote_area(struct area *area, int active) | |||
1194 | { | |||
1195 | struct demote_msg dmsg; | |||
1196 | ||||
1197 | if (ospfd_process != PROC_OSPF_ENGINE || | |||
1198 | area->demote_group[0] == '\0') | |||
1199 | return; | |||
1200 | ||||
1201 | bzero(&dmsg, sizeof(dmsg)); | |||
1202 | strlcpy(dmsg.demote_group, area->demote_group, | |||
1203 | sizeof(dmsg.demote_group)); | |||
1204 | dmsg.level = area->demote_level; | |||
1205 | if (active) | |||
1206 | dmsg.level = -dmsg.level; | |||
1207 | ||||
1208 | ospfe_imsg_compose_parent(IMSG_DEMOTE, 0, &dmsg, sizeof(dmsg)); | |||
1209 | } | |||
1210 | ||||
1211 | void | |||
1212 | ospfe_demote_iface(struct iface *iface, int active) | |||
1213 | { | |||
1214 | struct demote_msg dmsg; | |||
1215 | ||||
1216 | if (ospfd_process != PROC_OSPF_ENGINE || | |||
1217 | iface->demote_group[0] == '\0') | |||
1218 | return; | |||
1219 | ||||
1220 | bzero(&dmsg, sizeof(dmsg)); | |||
1221 | strlcpy(dmsg.demote_group, iface->demote_group, | |||
1222 | sizeof(dmsg.demote_group)); | |||
1223 | if (active) | |||
1224 | dmsg.level = -1; | |||
1225 | else | |||
1226 | dmsg.level = 1; | |||
1227 | ||||
1228 | log_warnx("ospfe_demote_iface: group %s level %d", dmsg.demote_group, | |||
1229 | dmsg.level); | |||
1230 | ||||
1231 | ospfe_imsg_compose_parent(IMSG_DEMOTE, 0, &dmsg, sizeof(dmsg)); | |||
1232 | } |