| File: | src/usr.sbin/ldpd/ldpd.c |
| Warning: | line 1114, column 8 Although the value stored to 'xp' is used in the enclosing expression, the value is never actually read from 'xp' |
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| 1 | /* $OpenBSD: ldpd.c,v 1.69 2023/03/08 04:43:13 guenther Exp $ */ |
| 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 | |
| 22 | #include <sys/types.h> |
| 23 | #include <sys/wait.h> |
| 24 | #include <err.h> |
| 25 | #include <errno(*__errno()).h> |
| 26 | #include <fcntl.h> |
| 27 | #include <pwd.h> |
| 28 | #include <stdio.h> |
| 29 | #include <stdlib.h> |
| 30 | #include <string.h> |
| 31 | #include <signal.h> |
| 32 | #include <unistd.h> |
| 33 | |
| 34 | #include "ldpd.h" |
| 35 | #include "ldpe.h" |
| 36 | #include "lde.h" |
| 37 | #include "log.h" |
| 38 | |
| 39 | static void main_sig_handler(int, short, void *); |
| 40 | static __dead__attribute__((__noreturn__)) void usage(void); |
| 41 | static __dead__attribute__((__noreturn__)) void ldpd_shutdown(void); |
| 42 | static pid_t start_child(enum ldpd_process, char *, int, int, int, |
| 43 | char *); |
| 44 | static void main_dispatch_ldpe(int, short, void *); |
| 45 | static void main_dispatch_lde(int, short, void *); |
| 46 | static int main_imsg_compose_both(enum imsg_type, void *, |
| 47 | uint16_t); |
| 48 | static int main_imsg_send_ipc_sockets(struct imsgbuf *, |
| 49 | struct imsgbuf *); |
| 50 | static void main_imsg_send_net_sockets(int); |
| 51 | static void main_imsg_send_net_socket(int, enum socket_type); |
| 52 | static int main_imsg_send_config(struct ldpd_conf *); |
| 53 | static int ldp_reload(void); |
| 54 | static void merge_global(struct ldpd_conf *, struct ldpd_conf *); |
| 55 | static void merge_af(int, struct ldpd_af_conf *, |
| 56 | struct ldpd_af_conf *); |
| 57 | static void merge_ifaces(struct ldpd_conf *, struct ldpd_conf *); |
| 58 | static void merge_iface_af(struct iface_af *, struct iface_af *); |
| 59 | static void merge_tnbrs(struct ldpd_conf *, struct ldpd_conf *); |
| 60 | static void merge_nbrps(struct ldpd_conf *, struct ldpd_conf *); |
| 61 | static void merge_l2vpns(struct ldpd_conf *, struct ldpd_conf *); |
| 62 | static void merge_l2vpn(struct ldpd_conf *, struct l2vpn *, |
| 63 | struct l2vpn *); |
| 64 | static void merge_auths(struct ldpd_conf *, struct ldpd_conf *); |
| 65 | |
| 66 | enum ldpd_process ldpd_process; |
| 67 | struct ldpd_global global; |
| 68 | struct ldpd_conf *ldpd_conf; |
| 69 | |
| 70 | static char *conffile; |
| 71 | static struct imsgev *iev_ldpe; |
| 72 | static struct imsgev *iev_lde; |
| 73 | static pid_t ldpe_pid; |
| 74 | static pid_t lde_pid; |
| 75 | |
| 76 | static void |
| 77 | main_sig_handler(int sig, short event, void *arg) |
| 78 | { |
| 79 | /* signal handler rules don't apply, libevent decouples for us */ |
| 80 | switch (sig) { |
| 81 | case SIGTERM15: |
| 82 | case SIGINT2: |
| 83 | ldpd_shutdown(); |
| 84 | /* NOTREACHED */ |
| 85 | case SIGHUP1: |
| 86 | if (ldp_reload() == -1) |
| 87 | log_warnx("configuration reload failed"); |
| 88 | else |
| 89 | log_debug("configuration reloaded"); |
| 90 | break; |
| 91 | default: |
| 92 | fatalx("unexpected signal"); |
| 93 | /* NOTREACHED */ |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | static __dead__attribute__((__noreturn__)) void |
| 98 | usage(void) |
| 99 | { |
| 100 | extern char *__progname; |
| 101 | |
| 102 | fprintf(stderr(&__sF[2]), "usage: %s [-dnv] [-D macro=value] [-f file]" |
| 103 | " [-s socket]\n", __progname); |
| 104 | exit(1); |
| 105 | } |
| 106 | |
| 107 | int |
| 108 | main(int argc, char *argv[]) |
| 109 | { |
| 110 | struct event ev_sigint, ev_sigterm, ev_sighup; |
| 111 | char *saved_argv0; |
| 112 | int ch; |
| 113 | int debug = 0, lflag = 0, eflag = 0; |
| 114 | char *sockname; |
| 115 | int pipe_parent2ldpe[2]; |
| 116 | int pipe_parent2lde[2]; |
| 117 | |
| 118 | conffile = CONF_FILE"/etc/ldpd.conf"; |
| 119 | ldpd_process = PROC_MAIN; |
| 120 | log_procname = "parent"; |
| 121 | sockname = LDPD_SOCKET"/var/run/ldpd.sock"; |
| 122 | |
| 123 | log_init(1); /* log to stderr until daemonized */ |
| 124 | log_verbose(1); |
| 125 | |
| 126 | saved_argv0 = argv[0]; |
| 127 | if (saved_argv0 == NULL((void *)0)) |
| 128 | saved_argv0 = "ldpd"; |
| 129 | |
| 130 | while ((ch = getopt(argc, argv, "dD:f:ns:vLE")) != -1) { |
| 131 | switch (ch) { |
| 132 | case 'd': |
| 133 | debug = 1; |
| 134 | break; |
| 135 | case 'D': |
| 136 | if (cmdline_symset(optarg) < 0) |
| 137 | log_warnx("could not parse macro definition %s", |
| 138 | optarg); |
| 139 | break; |
| 140 | case 'f': |
| 141 | conffile = optarg; |
| 142 | break; |
| 143 | case 'n': |
| 144 | global.cmd_opts |= LDPD_OPT_NOACTION0x00000004; |
| 145 | break; |
| 146 | case 's': |
| 147 | sockname = optarg; |
| 148 | break; |
| 149 | case 'v': |
| 150 | if (global.cmd_opts & LDPD_OPT_VERBOSE0x00000001) |
| 151 | global.cmd_opts |= LDPD_OPT_VERBOSE20x00000002; |
| 152 | global.cmd_opts |= LDPD_OPT_VERBOSE0x00000001; |
| 153 | break; |
| 154 | case 'L': |
| 155 | lflag = 1; |
| 156 | break; |
| 157 | case 'E': |
| 158 | eflag = 1; |
| 159 | break; |
| 160 | default: |
| 161 | usage(); |
| 162 | /* NOTREACHED */ |
| 163 | } |
| 164 | } |
| 165 | |
| 166 | argc -= optind; |
| 167 | argv += optind; |
| 168 | if (argc > 0 || (lflag && eflag)) |
| 169 | usage(); |
| 170 | |
| 171 | if (lflag) |
| 172 | lde(debug, global.cmd_opts & LDPD_OPT_VERBOSE0x00000001); |
| 173 | else if (eflag) |
| 174 | ldpe(debug, global.cmd_opts & LDPD_OPT_VERBOSE0x00000001, sockname); |
| 175 | |
| 176 | /* fetch interfaces early */ |
| 177 | kif_init(); |
| 178 | |
| 179 | /* parse config file */ |
| 180 | if ((ldpd_conf = parse_config(conffile)) == NULL((void *)0) ) { |
| 181 | kif_clear(); |
| 182 | exit(1); |
| 183 | } |
| 184 | |
| 185 | if (global.cmd_opts & LDPD_OPT_NOACTION0x00000004) { |
| 186 | if (global.cmd_opts & LDPD_OPT_VERBOSE0x00000001) |
| 187 | print_config(ldpd_conf); |
| 188 | else |
| 189 | fprintf(stderr(&__sF[2]), "configuration OK\n"); |
| 190 | kif_clear(); |
| 191 | exit(0); |
| 192 | } |
| 193 | |
| 194 | /* check for root privileges */ |
| 195 | if (geteuid()) |
| 196 | errx(1, "need root privileges"); |
| 197 | |
| 198 | /* check for ldpd user */ |
| 199 | if (getpwnam(LDPD_USER"_ldpd") == NULL((void *)0)) |
| 200 | errx(1, "unknown user %s", LDPD_USER"_ldpd"); |
| 201 | |
| 202 | log_init(debug); |
| 203 | log_verbose(global.cmd_opts & (LDPD_OPT_VERBOSE0x00000001 | LDPD_OPT_VERBOSE20x00000002)); |
| 204 | |
| 205 | if (!debug) |
| 206 | daemon(1, 0); |
| 207 | |
| 208 | log_info("startup"); |
| 209 | |
| 210 | if (socketpair(AF_UNIX1, SOCK_STREAM1 | SOCK_NONBLOCK0x4000 | SOCK_CLOEXEC0x8000, |
| 211 | PF_UNSPEC0, pipe_parent2ldpe) == -1) |
| 212 | fatal("socketpair"); |
| 213 | if (socketpair(AF_UNIX1, SOCK_STREAM1 | SOCK_NONBLOCK0x4000 | SOCK_CLOEXEC0x8000, |
| 214 | PF_UNSPEC0, pipe_parent2lde) == -1) |
| 215 | fatal("socketpair"); |
| 216 | |
| 217 | /* start children */ |
| 218 | lde_pid = start_child(PROC_LDE_ENGINE, saved_argv0, |
| 219 | pipe_parent2lde[1], debug, global.cmd_opts & LDPD_OPT_VERBOSE0x00000001, |
| 220 | NULL((void *)0)); |
| 221 | ldpe_pid = start_child(PROC_LDP_ENGINE, saved_argv0, |
| 222 | pipe_parent2ldpe[1], debug, global.cmd_opts & LDPD_OPT_VERBOSE0x00000001, |
| 223 | sockname); |
| 224 | |
| 225 | if (unveil("/", "r") == -1) |
| 226 | fatal("unveil /"); |
| 227 | if (unveil(NULL((void *)0), NULL((void *)0)) == -1) |
| 228 | fatal("unveil"); |
| 229 | |
| 230 | event_init(); |
| 231 | |
| 232 | /* setup signal handler */ |
| 233 | signal_set(&ev_sigint, SIGINT, main_sig_handler, NULL)event_set(&ev_sigint, 2, 0x08|0x10, main_sig_handler, ((void *)0)); |
| 234 | signal_set(&ev_sigterm, SIGTERM, main_sig_handler, NULL)event_set(&ev_sigterm, 15, 0x08|0x10, main_sig_handler, ( (void *)0)); |
| 235 | signal_set(&ev_sighup, SIGHUP, main_sig_handler, NULL)event_set(&ev_sighup, 1, 0x08|0x10, main_sig_handler, ((void *)0)); |
| 236 | signal_add(&ev_sigint, NULL)event_add(&ev_sigint, ((void *)0)); |
| 237 | signal_add(&ev_sigterm, NULL)event_add(&ev_sigterm, ((void *)0)); |
| 238 | signal_add(&ev_sighup, NULL)event_add(&ev_sighup, ((void *)0)); |
| 239 | signal(SIGPIPE13, SIG_IGN(void (*)(int))1); |
| 240 | |
| 241 | /* setup pipes to children */ |
| 242 | if ((iev_ldpe = malloc(sizeof(struct imsgev))) == NULL((void *)0) || |
| 243 | (iev_lde = malloc(sizeof(struct imsgev))) == NULL((void *)0)) |
| 244 | fatal(NULL((void *)0)); |
| 245 | imsg_init(&iev_ldpe->ibuf, pipe_parent2ldpe[0]); |
| 246 | iev_ldpe->handler = main_dispatch_ldpe; |
| 247 | imsg_init(&iev_lde->ibuf, pipe_parent2lde[0]); |
| 248 | iev_lde->handler = main_dispatch_lde; |
| 249 | |
| 250 | /* setup event handler */ |
| 251 | iev_ldpe->events = EV_READ0x02; |
| 252 | event_set(&iev_ldpe->ev, iev_ldpe->ibuf.fd, iev_ldpe->events, |
| 253 | iev_ldpe->handler, iev_ldpe); |
| 254 | event_add(&iev_ldpe->ev, NULL((void *)0)); |
| 255 | |
| 256 | iev_lde->events = EV_READ0x02; |
| 257 | event_set(&iev_lde->ev, iev_lde->ibuf.fd, iev_lde->events, |
| 258 | iev_lde->handler, iev_lde); |
| 259 | event_add(&iev_lde->ev, NULL((void *)0)); |
| 260 | |
| 261 | if (main_imsg_send_ipc_sockets(&iev_ldpe->ibuf, &iev_lde->ibuf)) |
| 262 | fatal("could not establish imsg links"); |
| 263 | main_imsg_send_config(ldpd_conf); |
| 264 | |
| 265 | if (kr_init(!(ldpd_conf->flags & F_LDPD_NO_FIB_UPDATE0x0001), |
| 266 | ldpd_conf->rdomain) == -1) |
| 267 | fatalx("kr_init failed"); |
| 268 | |
| 269 | /* notify ldpe about existing interfaces and addresses */ |
| 270 | kif_redistribute(NULL((void *)0)); |
| 271 | |
| 272 | if (ldpd_conf->ipv4.flags & F_LDPD_AF_ENABLED0x0001) |
| 273 | main_imsg_send_net_sockets(AF_INET2); |
| 274 | if (ldpd_conf->ipv6.flags & F_LDPD_AF_ENABLED0x0001) |
| 275 | main_imsg_send_net_sockets(AF_INET624); |
| 276 | |
| 277 | /* remove unneeded stuff from config */ |
| 278 | /* ... */ |
| 279 | |
| 280 | event_dispatch(); |
| 281 | |
| 282 | ldpd_shutdown(); |
| 283 | /* NOTREACHED */ |
| 284 | return (0); |
| 285 | } |
| 286 | |
| 287 | static __dead__attribute__((__noreturn__)) void |
| 288 | ldpd_shutdown(void) |
| 289 | { |
| 290 | pid_t pid; |
| 291 | int status; |
| 292 | |
| 293 | /* close pipes */ |
| 294 | msgbuf_clear(&iev_ldpe->ibuf.w); |
| 295 | close(iev_ldpe->ibuf.fd); |
| 296 | msgbuf_clear(&iev_lde->ibuf.w); |
| 297 | close(iev_lde->ibuf.fd); |
| 298 | |
| 299 | kr_shutdown(); |
| 300 | config_clear(ldpd_conf); |
| 301 | |
| 302 | log_debug("waiting for children to terminate"); |
| 303 | do { |
| 304 | pid = wait(&status); |
| 305 | if (pid == -1) { |
| 306 | if (errno(*__errno()) != EINTR4 && errno(*__errno()) != ECHILD10) |
| 307 | fatal("wait"); |
| 308 | } else if (WIFSIGNALED(status)(((status) & 0177) != 0177 && ((status) & 0177 ) != 0)) |
| 309 | log_warnx("%s terminated; signal %d", |
| 310 | (pid == lde_pid) ? "label decision engine" : |
| 311 | "ldp engine", WTERMSIG(status)(((status) & 0177))); |
| 312 | } while (pid != -1 || (pid == -1 && errno(*__errno()) == EINTR4)); |
| 313 | |
| 314 | free(iev_ldpe); |
| 315 | free(iev_lde); |
| 316 | |
| 317 | log_info("terminating"); |
| 318 | exit(0); |
| 319 | } |
| 320 | |
| 321 | static pid_t |
| 322 | start_child(enum ldpd_process p, char *argv0, int fd, int debug, int verbose, |
| 323 | char *sockname) |
| 324 | { |
| 325 | char *argv[7]; |
| 326 | int argc = 0; |
| 327 | pid_t pid; |
| 328 | |
| 329 | switch (pid = fork()) { |
| 330 | case -1: |
| 331 | fatal("cannot fork"); |
| 332 | case 0: |
| 333 | break; |
| 334 | default: |
| 335 | close(fd); |
| 336 | return (pid); |
| 337 | } |
| 338 | |
| 339 | if (fd != 3) { |
| 340 | if (dup2(fd, 3) == -1) |
| 341 | fatal("cannot setup imsg fd"); |
| 342 | } else if (fcntl(fd, F_SETFD2, 0) == -1) |
| 343 | fatal("cannot setup imsg fd"); |
| 344 | |
| 345 | argv[argc++] = argv0; |
| 346 | switch (p) { |
| 347 | case PROC_MAIN: |
| 348 | fatalx("Can not start main process"); |
| 349 | case PROC_LDE_ENGINE: |
| 350 | argv[argc++] = "-L"; |
| 351 | break; |
| 352 | case PROC_LDP_ENGINE: |
| 353 | argv[argc++] = "-E"; |
| 354 | break; |
| 355 | } |
| 356 | if (debug) |
| 357 | argv[argc++] = "-d"; |
| 358 | if (verbose) |
| 359 | argv[argc++] = "-v"; |
| 360 | if (sockname) { |
| 361 | argv[argc++] = "-s"; |
| 362 | argv[argc++] = sockname; |
| 363 | } |
| 364 | argv[argc++] = NULL((void *)0); |
| 365 | |
| 366 | execvp(argv0, argv); |
| 367 | fatal("execvp"); |
| 368 | } |
| 369 | |
| 370 | /* imsg handling */ |
| 371 | static void |
| 372 | main_dispatch_ldpe(int fd, short event, void *bula) |
| 373 | { |
| 374 | struct imsgev *iev = bula; |
| 375 | struct imsgbuf *ibuf = &iev->ibuf; |
| 376 | struct imsg imsg; |
| 377 | int af; |
| 378 | ssize_t n; |
| 379 | int shut = 0, verbose; |
| 380 | |
| 381 | if (event & EV_READ0x02) { |
| 382 | if ((n = imsg_read(ibuf)) == -1 && errno(*__errno()) != EAGAIN35) |
| 383 | fatal("imsg_read error"); |
| 384 | if (n == 0) /* connection closed */ |
| 385 | shut = 1; |
| 386 | } |
| 387 | if (event & EV_WRITE0x04) { |
| 388 | if ((n = msgbuf_write(&ibuf->w)) == -1 && errno(*__errno()) != EAGAIN35) |
| 389 | fatal("msgbuf_write"); |
| 390 | if (n == 0) |
| 391 | shut = 1; |
| 392 | } |
| 393 | |
| 394 | for (;;) { |
| 395 | if ((n = imsg_get(ibuf, &imsg)) == -1) |
| 396 | fatal("imsg_get"); |
| 397 | |
| 398 | if (n == 0) |
| 399 | break; |
| 400 | |
| 401 | switch (imsg.hdr.type) { |
| 402 | case IMSG_REQUEST_SOCKETS: |
| 403 | af = imsg.hdr.pid; |
| 404 | main_imsg_send_net_sockets(af); |
| 405 | break; |
| 406 | case IMSG_CTL_RELOAD: |
| 407 | if (ldp_reload() == -1) |
| 408 | log_warnx("configuration reload failed"); |
| 409 | else |
| 410 | log_debug("configuration reloaded"); |
| 411 | break; |
| 412 | case IMSG_CTL_FIB_COUPLE: |
| 413 | kr_fib_couple(); |
| 414 | break; |
| 415 | case IMSG_CTL_FIB_DECOUPLE: |
| 416 | kr_fib_decouple(); |
| 417 | break; |
| 418 | case IMSG_CTL_KROUTE: |
| 419 | case IMSG_CTL_KROUTE_ADDR: |
| 420 | kr_show_route(&imsg); |
| 421 | break; |
| 422 | case IMSG_CTL_IFINFO: |
| 423 | if (imsg.hdr.len == IMSG_HEADER_SIZEsizeof(struct imsg_hdr)) |
| 424 | kr_ifinfo(NULL((void *)0), imsg.hdr.pid); |
| 425 | else if (imsg.hdr.len == IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + IFNAMSIZ16) |
| 426 | kr_ifinfo(imsg.data, imsg.hdr.pid); |
| 427 | else |
| 428 | log_warnx("IFINFO request with wrong len"); |
| 429 | break; |
| 430 | case IMSG_CTL_LOG_VERBOSE: |
| 431 | /* already checked by ldpe */ |
| 432 | memcpy(&verbose, imsg.data, sizeof(verbose)); |
| 433 | log_verbose(verbose); |
| 434 | break; |
| 435 | default: |
| 436 | log_debug("%s: error handling imsg %d", __func__, |
| 437 | imsg.hdr.type); |
| 438 | break; |
| 439 | } |
| 440 | imsg_free(&imsg); |
| 441 | } |
| 442 | if (!shut) |
| 443 | imsg_event_add(iev); |
| 444 | else { |
| 445 | /* this pipe is dead, so remove the event handler */ |
| 446 | event_del(&iev->ev); |
| 447 | event_loopexit(NULL((void *)0)); |
| 448 | } |
| 449 | } |
| 450 | |
| 451 | static void |
| 452 | main_dispatch_lde(int fd, short event, void *bula) |
| 453 | { |
| 454 | struct imsgev *iev = bula; |
| 455 | struct imsgbuf *ibuf = &iev->ibuf; |
| 456 | struct imsg imsg; |
| 457 | ssize_t n; |
| 458 | int shut = 0; |
| 459 | |
| 460 | if (event & EV_READ0x02) { |
| 461 | if ((n = imsg_read(ibuf)) == -1 && errno(*__errno()) != EAGAIN35) |
| 462 | fatal("imsg_read error"); |
| 463 | if (n == 0) /* connection closed */ |
| 464 | shut = 1; |
| 465 | } |
| 466 | if (event & EV_WRITE0x04) { |
| 467 | if ((n = msgbuf_write(&ibuf->w)) == -1 && errno(*__errno()) != EAGAIN35) |
| 468 | fatal("msgbuf_write"); |
| 469 | if (n == 0) |
| 470 | shut = 1; |
| 471 | } |
| 472 | |
| 473 | for (;;) { |
| 474 | if ((n = imsg_get(ibuf, &imsg)) == -1) |
| 475 | fatal("imsg_get"); |
| 476 | |
| 477 | if (n == 0) |
| 478 | break; |
| 479 | |
| 480 | switch (imsg.hdr.type) { |
| 481 | case IMSG_KLABEL_CHANGE: |
| 482 | if (imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr) != |
| 483 | sizeof(struct kroute)) |
| 484 | fatalx("invalid size of IMSG_KLABEL_CHANGE"); |
| 485 | if (kr_change(imsg.data)) |
| 486 | log_warnx("%s: error changing route", __func__); |
| 487 | break; |
| 488 | case IMSG_KLABEL_DELETE: |
| 489 | if (imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr) != |
| 490 | sizeof(struct kroute)) |
| 491 | fatalx("invalid size of IMSG_KLABEL_DELETE"); |
| 492 | if (kr_delete(imsg.data)) |
| 493 | log_warnx("%s: error deleting route", __func__); |
| 494 | break; |
| 495 | case IMSG_KPWLABEL_CHANGE: |
| 496 | if (imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr) != |
| 497 | sizeof(struct kpw)) |
| 498 | fatalx("invalid size of IMSG_KPWLABEL_CHANGE"); |
| 499 | if (kmpw_set(imsg.data)) |
| 500 | log_warnx("%s: error changing pseudowire", |
| 501 | __func__); |
| 502 | break; |
| 503 | case IMSG_KPWLABEL_DELETE: |
| 504 | if (imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr) != |
| 505 | sizeof(struct kpw)) |
| 506 | fatalx("invalid size of IMSG_KPWLABEL_DELETE"); |
| 507 | if (kmpw_unset(imsg.data)) |
| 508 | log_warnx("%s: error unsetting pseudowire", |
| 509 | __func__); |
| 510 | break; |
| 511 | default: |
| 512 | log_debug("%s: error handling imsg %d", __func__, |
| 513 | imsg.hdr.type); |
| 514 | break; |
| 515 | } |
| 516 | imsg_free(&imsg); |
| 517 | } |
| 518 | if (!shut) |
| 519 | imsg_event_add(iev); |
| 520 | else { |
| 521 | /* this pipe is dead, so remove the event handler */ |
| 522 | event_del(&iev->ev); |
| 523 | event_loopexit(NULL((void *)0)); |
| 524 | } |
| 525 | } |
| 526 | |
| 527 | void |
| 528 | main_imsg_compose_ldpe(int type, pid_t pid, void *data, uint16_t datalen) |
| 529 | { |
| 530 | if (iev_ldpe == NULL((void *)0)) |
| 531 | return; |
| 532 | imsg_compose_event(iev_ldpe, type, 0, pid, -1, data, datalen); |
| 533 | } |
| 534 | |
| 535 | void |
| 536 | main_imsg_compose_lde(int type, pid_t pid, void *data, uint16_t datalen) |
| 537 | { |
| 538 | imsg_compose_event(iev_lde, type, 0, pid, -1, data, datalen); |
| 539 | } |
| 540 | |
| 541 | static int |
| 542 | main_imsg_compose_both(enum imsg_type type, void *buf, uint16_t len) |
| 543 | { |
| 544 | if (imsg_compose_event(iev_ldpe, type, 0, 0, -1, buf, len) == -1) |
| 545 | return (-1); |
| 546 | if (imsg_compose_event(iev_lde, type, 0, 0, -1, buf, len) == -1) |
| 547 | return (-1); |
| 548 | return (0); |
| 549 | } |
| 550 | |
| 551 | void |
| 552 | imsg_event_add(struct imsgev *iev) |
| 553 | { |
| 554 | iev->events = EV_READ0x02; |
| 555 | if (iev->ibuf.w.queued) |
| 556 | iev->events |= EV_WRITE0x04; |
| 557 | |
| 558 | event_del(&iev->ev); |
| 559 | event_set(&iev->ev, iev->ibuf.fd, iev->events, iev->handler, iev); |
| 560 | event_add(&iev->ev, NULL((void *)0)); |
| 561 | } |
| 562 | |
| 563 | int |
| 564 | imsg_compose_event(struct imsgev *iev, uint16_t type, uint32_t peerid, |
| 565 | pid_t pid, int fd, void *data, uint16_t datalen) |
| 566 | { |
| 567 | int ret; |
| 568 | |
| 569 | if ((ret = imsg_compose(&iev->ibuf, type, peerid, |
| 570 | pid, fd, data, datalen)) != -1) |
| 571 | imsg_event_add(iev); |
| 572 | return (ret); |
| 573 | } |
| 574 | |
| 575 | void |
| 576 | evbuf_enqueue(struct evbuf *eb, struct ibuf *buf) |
| 577 | { |
| 578 | ibuf_close(&eb->wbuf, buf); |
| 579 | evbuf_event_add(eb); |
| 580 | } |
| 581 | |
| 582 | void |
| 583 | evbuf_event_add(struct evbuf *eb) |
| 584 | { |
| 585 | if (eb->wbuf.queued) |
| 586 | event_add(&eb->ev, NULL((void *)0)); |
| 587 | } |
| 588 | |
| 589 | void |
| 590 | evbuf_init(struct evbuf *eb, int fd, void (*handler)(int, short, void *), |
| 591 | void *arg) |
| 592 | { |
| 593 | msgbuf_init(&eb->wbuf); |
| 594 | eb->wbuf.fd = fd; |
| 595 | event_set(&eb->ev, eb->wbuf.fd, EV_WRITE0x04, handler, arg); |
| 596 | } |
| 597 | |
| 598 | void |
| 599 | evbuf_clear(struct evbuf *eb) |
| 600 | { |
| 601 | event_del(&eb->ev); |
| 602 | msgbuf_clear(&eb->wbuf); |
| 603 | eb->wbuf.fd = -1; |
| 604 | } |
| 605 | |
| 606 | static int |
| 607 | main_imsg_send_ipc_sockets(struct imsgbuf *ldpe_buf, struct imsgbuf *lde_buf) |
| 608 | { |
| 609 | int pipe_ldpe2lde[2]; |
| 610 | |
| 611 | if (socketpair(AF_UNIX1, SOCK_STREAM1 | SOCK_CLOEXEC0x8000 | SOCK_NONBLOCK0x4000, |
| 612 | PF_UNSPEC0, pipe_ldpe2lde) == -1) |
| 613 | return (-1); |
| 614 | |
| 615 | if (imsg_compose(ldpe_buf, IMSG_SOCKET_IPC, 0, 0, pipe_ldpe2lde[0], |
| 616 | NULL((void *)0), 0) == -1) |
| 617 | return (-1); |
| 618 | if (imsg_compose(lde_buf, IMSG_SOCKET_IPC, 0, 0, pipe_ldpe2lde[1], |
| 619 | NULL((void *)0), 0) == -1) |
| 620 | return (-1); |
| 621 | |
| 622 | return (0); |
| 623 | } |
| 624 | |
| 625 | static void |
| 626 | main_imsg_send_net_sockets(int af) |
| 627 | { |
| 628 | main_imsg_send_net_socket(af, LDP_SOCKET_DISC); |
| 629 | main_imsg_send_net_socket(af, LDP_SOCKET_EDISC); |
| 630 | main_imsg_send_net_socket(af, LDP_SOCKET_SESSION); |
| 631 | imsg_compose_event(iev_ldpe, IMSG_SETUP_SOCKETS, af, 0, -1, NULL((void *)0), 0); |
| 632 | } |
| 633 | |
| 634 | static void |
| 635 | main_imsg_send_net_socket(int af, enum socket_type type) |
| 636 | { |
| 637 | int fd; |
| 638 | |
| 639 | fd = ldp_create_socket(af, type); |
| 640 | if (fd == -1) { |
| 641 | log_warnx("%s: failed to create %s socket for address-family " |
| 642 | "%s", __func__, socket_name(type), af_name(af)); |
| 643 | return; |
| 644 | } |
| 645 | |
| 646 | imsg_compose_event(iev_ldpe, IMSG_SOCKET_NET, af, 0, fd, &type, |
| 647 | sizeof(type)); |
| 648 | } |
| 649 | |
| 650 | struct ldpd_af_conf * |
| 651 | ldp_af_conf_get(struct ldpd_conf *xconf, int af) |
| 652 | { |
| 653 | switch (af) { |
| 654 | case AF_INET2: |
| 655 | return (&xconf->ipv4); |
| 656 | case AF_INET624: |
| 657 | return (&xconf->ipv6); |
| 658 | default: |
| 659 | fatalx("ldp_af_conf_get: unknown af"); |
| 660 | } |
| 661 | } |
| 662 | |
| 663 | struct ldpd_af_global * |
| 664 | ldp_af_global_get(struct ldpd_global *xglobal, int af) |
| 665 | { |
| 666 | switch (af) { |
| 667 | case AF_INET2: |
| 668 | return (&xglobal->ipv4); |
| 669 | case AF_INET624: |
| 670 | return (&xglobal->ipv6); |
| 671 | default: |
| 672 | fatalx("ldp_af_global_get: unknown af"); |
| 673 | } |
| 674 | } |
| 675 | |
| 676 | int |
| 677 | ldp_is_dual_stack(struct ldpd_conf *xconf) |
| 678 | { |
| 679 | return ((xconf->ipv4.flags & F_LDPD_AF_ENABLED0x0001) && |
| 680 | (xconf->ipv6.flags & F_LDPD_AF_ENABLED0x0001)); |
| 681 | } |
| 682 | |
| 683 | static int |
| 684 | main_imsg_send_config(struct ldpd_conf *xconf) |
| 685 | { |
| 686 | struct iface *iface; |
| 687 | struct tnbr *tnbr; |
| 688 | struct nbr_params *nbrp; |
| 689 | struct l2vpn *l2vpn; |
| 690 | struct l2vpn_if *lif; |
| 691 | struct l2vpn_pw *pw; |
| 692 | struct ldp_auth *auth; |
| 693 | |
| 694 | if (main_imsg_compose_both(IMSG_RECONF_CONF, xconf, |
| 695 | sizeof(*xconf)) == -1) |
| 696 | return (-1); |
| 697 | |
| 698 | LIST_FOREACH(auth, &xconf->auth_list, entry)for((auth) = ((&xconf->auth_list)->lh_first); (auth )!= ((void *)0); (auth) = ((auth)->entry.le_next)) { |
| 699 | if (main_imsg_compose_both(IMSG_RECONF_CONF_AUTH, |
| 700 | auth, sizeof(*auth)) == -1) |
| 701 | return (-1); |
| 702 | } |
| 703 | |
| 704 | LIST_FOREACH(iface, &xconf->iface_list, entry)for((iface) = ((&xconf->iface_list)->lh_first); (iface )!= ((void *)0); (iface) = ((iface)->entry.le_next)) { |
| 705 | if (main_imsg_compose_both(IMSG_RECONF_IFACE, iface, |
| 706 | sizeof(*iface)) == -1) |
| 707 | return (-1); |
| 708 | } |
| 709 | |
| 710 | LIST_FOREACH(tnbr, &xconf->tnbr_list, entry)for((tnbr) = ((&xconf->tnbr_list)->lh_first); (tnbr )!= ((void *)0); (tnbr) = ((tnbr)->entry.le_next)) { |
| 711 | if (main_imsg_compose_both(IMSG_RECONF_TNBR, tnbr, |
| 712 | sizeof(*tnbr)) == -1) |
| 713 | return (-1); |
| 714 | } |
| 715 | |
| 716 | LIST_FOREACH(nbrp, &xconf->nbrp_list, entry)for((nbrp) = ((&xconf->nbrp_list)->lh_first); (nbrp )!= ((void *)0); (nbrp) = ((nbrp)->entry.le_next)) { |
| 717 | if (main_imsg_compose_both(IMSG_RECONF_NBRP, nbrp, |
| 718 | sizeof(*nbrp)) == -1) |
| 719 | return (-1); |
| 720 | } |
| 721 | |
| 722 | LIST_FOREACH(l2vpn, &xconf->l2vpn_list, entry)for((l2vpn) = ((&xconf->l2vpn_list)->lh_first); (l2vpn )!= ((void *)0); (l2vpn) = ((l2vpn)->entry.le_next)) { |
| 723 | if (main_imsg_compose_both(IMSG_RECONF_L2VPN, l2vpn, |
| 724 | sizeof(*l2vpn)) == -1) |
| 725 | return (-1); |
| 726 | |
| 727 | LIST_FOREACH(lif, &l2vpn->if_list, entry)for((lif) = ((&l2vpn->if_list)->lh_first); (lif)!= ( (void *)0); (lif) = ((lif)->entry.le_next)) { |
| 728 | if (main_imsg_compose_both(IMSG_RECONF_L2VPN_IF, lif, |
| 729 | sizeof(*lif)) == -1) |
| 730 | return (-1); |
| 731 | } |
| 732 | LIST_FOREACH(pw, &l2vpn->pw_list, entry)for((pw) = ((&l2vpn->pw_list)->lh_first); (pw)!= (( void *)0); (pw) = ((pw)->entry.le_next)) { |
| 733 | if (main_imsg_compose_both(IMSG_RECONF_L2VPN_PW, pw, |
| 734 | sizeof(*pw)) == -1) |
| 735 | return (-1); |
| 736 | } |
| 737 | } |
| 738 | |
| 739 | if (main_imsg_compose_both(IMSG_RECONF_END, NULL((void *)0), 0) == -1) |
| 740 | return (-1); |
| 741 | |
| 742 | return (0); |
| 743 | } |
| 744 | |
| 745 | static int |
| 746 | ldp_reload(void) |
| 747 | { |
| 748 | struct ldpd_conf *xconf; |
| 749 | |
| 750 | if ((xconf = parse_config(conffile)) == NULL((void *)0)) |
| 751 | return (-1); |
| 752 | |
| 753 | if (main_imsg_send_config(xconf) == -1) |
| 754 | return (-1); |
| 755 | |
| 756 | merge_config(ldpd_conf, xconf); |
| 757 | |
| 758 | return (0); |
| 759 | } |
| 760 | |
| 761 | void |
| 762 | merge_config(struct ldpd_conf *conf, struct ldpd_conf *xconf) |
| 763 | { |
| 764 | merge_global(conf, xconf); |
| 765 | merge_auths(conf, xconf); |
| 766 | merge_af(AF_INET2, &conf->ipv4, &xconf->ipv4); |
| 767 | merge_af(AF_INET624, &conf->ipv6, &xconf->ipv6); |
| 768 | merge_ifaces(conf, xconf); |
| 769 | merge_tnbrs(conf, xconf); |
| 770 | merge_nbrps(conf, xconf); |
| 771 | merge_l2vpns(conf, xconf); |
| 772 | free(xconf); |
| 773 | } |
| 774 | |
| 775 | static void |
| 776 | merge_global(struct ldpd_conf *conf, struct ldpd_conf *xconf) |
| 777 | { |
| 778 | /* change of router-id requires resetting all neighborships */ |
| 779 | if (conf->rtr_id.s_addr != xconf->rtr_id.s_addr) { |
| 780 | if (ldpd_process == PROC_LDP_ENGINE) { |
| 781 | ldpe_reset_nbrs(AF_INET2); |
| 782 | ldpe_reset_nbrs(AF_INET624); |
| 783 | if (conf->rtr_id.s_addr == INADDR_ANY((u_int32_t)(0x00000000)) || |
| 784 | xconf->rtr_id.s_addr == INADDR_ANY((u_int32_t)(0x00000000))) { |
| 785 | if_update_all(AF_UNSPEC0); |
| 786 | tnbr_update_all(AF_UNSPEC0); |
| 787 | } |
| 788 | } |
| 789 | conf->rtr_id = xconf->rtr_id; |
| 790 | } |
| 791 | |
| 792 | conf->rdomain= xconf->rdomain; |
| 793 | |
| 794 | if (conf->trans_pref != xconf->trans_pref) { |
| 795 | if (ldpd_process == PROC_LDP_ENGINE) |
| 796 | ldpe_reset_ds_nbrs(); |
| 797 | conf->trans_pref = xconf->trans_pref; |
| 798 | } |
| 799 | |
| 800 | if ((conf->flags & F_LDPD_DS_CISCO_INTEROP0x0002) != |
| 801 | (xconf->flags & F_LDPD_DS_CISCO_INTEROP0x0002)) { |
| 802 | if (ldpd_process == PROC_LDP_ENGINE) |
| 803 | ldpe_reset_ds_nbrs(); |
| 804 | } |
| 805 | |
| 806 | conf->flags = xconf->flags; |
| 807 | } |
| 808 | |
| 809 | static void |
| 810 | merge_af(int af, struct ldpd_af_conf *af_conf, struct ldpd_af_conf *xa) |
| 811 | { |
| 812 | int egress_label_changed = 0; |
| 813 | int update_sockets = 0; |
| 814 | |
| 815 | if (af_conf->keepalive != xa->keepalive) { |
| 816 | af_conf->keepalive = xa->keepalive; |
| 817 | if (ldpd_process == PROC_LDP_ENGINE) |
| 818 | ldpe_stop_init_backoff(af); |
| 819 | } |
| 820 | af_conf->thello_holdtime = xa->thello_holdtime; |
| 821 | af_conf->thello_interval = xa->thello_interval; |
| 822 | |
| 823 | /* update flags */ |
| 824 | if (ldpd_process == PROC_LDP_ENGINE && |
| 825 | (af_conf->flags & F_LDPD_AF_THELLO_ACCEPT0x0002) && |
| 826 | !(xa->flags & F_LDPD_AF_THELLO_ACCEPT0x0002)) |
| 827 | ldpe_remove_dynamic_tnbrs(af); |
| 828 | |
| 829 | if ((af_conf->flags & F_LDPD_AF_NO_GTSM0x0008) != |
| 830 | (xa->flags & F_LDPD_AF_NO_GTSM0x0008)) { |
| 831 | if (af == AF_INET624) |
| 832 | /* need to set/unset IPV6_MINHOPCOUNT */ |
| 833 | update_sockets = 1; |
| 834 | else if (ldpd_process == PROC_LDP_ENGINE) |
| 835 | /* for LDPv4 just resetting the neighbors is enough */ |
| 836 | ldpe_reset_nbrs(af); |
| 837 | } |
| 838 | |
| 839 | if ((af_conf->flags & F_LDPD_AF_EXPNULL0x0004) != |
| 840 | (xa->flags & F_LDPD_AF_EXPNULL0x0004)) |
| 841 | egress_label_changed = 1; |
| 842 | |
| 843 | af_conf->flags = xa->flags; |
| 844 | |
| 845 | if (egress_label_changed) { |
| 846 | switch (ldpd_process) { |
| 847 | case PROC_LDE_ENGINE: |
| 848 | lde_change_egress_label(af, af_conf->flags & |
| 849 | F_LDPD_AF_EXPNULL0x0004); |
| 850 | break; |
| 851 | case PROC_MAIN: |
| 852 | kr_change_egress_label(af, af_conf->flags & |
| 853 | F_LDPD_AF_EXPNULL0x0004); |
| 854 | break; |
| 855 | default: |
| 856 | break; |
| 857 | } |
| 858 | } |
| 859 | |
| 860 | if (ldp_addrcmp(af, &af_conf->trans_addr, &xa->trans_addr)) { |
| 861 | af_conf->trans_addr = xa->trans_addr; |
| 862 | update_sockets = 1; |
| 863 | } |
| 864 | |
| 865 | if (ldpd_process == PROC_MAIN && update_sockets) |
| 866 | imsg_compose_event(iev_ldpe, IMSG_CLOSE_SOCKETS, af, 0, -1, |
| 867 | NULL((void *)0), 0); |
| 868 | } |
| 869 | |
| 870 | static void |
| 871 | merge_ifaces(struct ldpd_conf *conf, struct ldpd_conf *xconf) |
| 872 | { |
| 873 | struct iface *iface, *itmp, *xi; |
| 874 | |
| 875 | LIST_FOREACH_SAFE(iface, &conf->iface_list, entry, itmp)for ((iface) = ((&conf->iface_list)->lh_first); (iface ) && ((itmp) = ((iface)->entry.le_next), 1); (iface ) = (itmp)) { |
| 876 | /* find deleted interfaces */ |
| 877 | if ((xi = if_lookup(xconf, iface->ifindex)) == NULL((void *)0)) { |
| 878 | LIST_REMOVE(iface, entry)do { if ((iface)->entry.le_next != ((void *)0)) (iface)-> entry.le_next->entry.le_prev = (iface)->entry.le_prev; * (iface)->entry.le_prev = (iface)->entry.le_next; ; ; } while (0); |
| 879 | if (ldpd_process == PROC_LDP_ENGINE) |
| 880 | if_exit(iface); |
| 881 | free(iface); |
| 882 | } |
| 883 | } |
| 884 | LIST_FOREACH_SAFE(xi, &xconf->iface_list, entry, itmp)for ((xi) = ((&xconf->iface_list)->lh_first); (xi) && ((itmp) = ((xi)->entry.le_next), 1); (xi) = (itmp)) { |
| 885 | /* find new interfaces */ |
| 886 | if ((iface = if_lookup(conf, xi->ifindex)) == NULL((void *)0)) { |
| 887 | LIST_REMOVE(xi, entry)do { if ((xi)->entry.le_next != ((void *)0)) (xi)->entry .le_next->entry.le_prev = (xi)->entry.le_prev; *(xi)-> entry.le_prev = (xi)->entry.le_next; ; ; } while (0); |
| 888 | LIST_INSERT_HEAD(&conf->iface_list, xi, entry)do { if (((xi)->entry.le_next = (&conf->iface_list) ->lh_first) != ((void *)0)) (&conf->iface_list)-> lh_first->entry.le_prev = &(xi)->entry.le_next; (& conf->iface_list)->lh_first = (xi); (xi)->entry.le_prev = &(&conf->iface_list)->lh_first; } while (0); |
| 889 | |
| 890 | /* resend addresses to activate new interfaces */ |
| 891 | if (ldpd_process == PROC_MAIN) |
| 892 | kif_redistribute(xi->name); |
| 893 | continue; |
| 894 | } |
| 895 | |
| 896 | /* update existing interfaces */ |
| 897 | merge_iface_af(&iface->ipv4, &xi->ipv4); |
| 898 | merge_iface_af(&iface->ipv6, &xi->ipv6); |
| 899 | LIST_REMOVE(xi, entry)do { if ((xi)->entry.le_next != ((void *)0)) (xi)->entry .le_next->entry.le_prev = (xi)->entry.le_prev; *(xi)-> entry.le_prev = (xi)->entry.le_next; ; ; } while (0); |
| 900 | free(xi); |
| 901 | } |
| 902 | } |
| 903 | |
| 904 | static void |
| 905 | merge_iface_af(struct iface_af *ia, struct iface_af *xi) |
| 906 | { |
| 907 | if (ia->enabled != xi->enabled) { |
| 908 | ia->enabled = xi->enabled; |
| 909 | if (ldpd_process == PROC_LDP_ENGINE) |
| 910 | if_update(ia->iface, ia->af); |
| 911 | } |
| 912 | ia->hello_holdtime = xi->hello_holdtime; |
| 913 | ia->hello_interval = xi->hello_interval; |
| 914 | } |
| 915 | |
| 916 | static void |
| 917 | merge_tnbrs(struct ldpd_conf *conf, struct ldpd_conf *xconf) |
| 918 | { |
| 919 | struct tnbr *tnbr, *ttmp, *xt; |
| 920 | |
| 921 | LIST_FOREACH_SAFE(tnbr, &conf->tnbr_list, entry, ttmp)for ((tnbr) = ((&conf->tnbr_list)->lh_first); (tnbr ) && ((ttmp) = ((tnbr)->entry.le_next), 1); (tnbr) = (ttmp)) { |
| 922 | if (!(tnbr->flags & F_TNBR_CONFIGURED0x01)) |
| 923 | continue; |
| 924 | |
| 925 | /* find deleted tnbrs */ |
| 926 | if ((xt = tnbr_find(xconf, tnbr->af, &tnbr->addr)) == NULL((void *)0)) { |
| 927 | if (ldpd_process == PROC_LDP_ENGINE) { |
| 928 | tnbr->flags &= ~F_TNBR_CONFIGURED0x01; |
| 929 | tnbr_check(tnbr); |
| 930 | } else { |
| 931 | LIST_REMOVE(tnbr, entry)do { if ((tnbr)->entry.le_next != ((void *)0)) (tnbr)-> entry.le_next->entry.le_prev = (tnbr)->entry.le_prev; * (tnbr)->entry.le_prev = (tnbr)->entry.le_next; ; ; } while (0); |
| 932 | free(tnbr); |
| 933 | } |
| 934 | } |
| 935 | } |
| 936 | LIST_FOREACH_SAFE(xt, &xconf->tnbr_list, entry, ttmp)for ((xt) = ((&xconf->tnbr_list)->lh_first); (xt) && ((ttmp) = ((xt)->entry.le_next), 1); (xt) = (ttmp)) { |
| 937 | /* find new tnbrs */ |
| 938 | if ((tnbr = tnbr_find(conf, xt->af, &xt->addr)) == NULL((void *)0)) { |
| 939 | LIST_REMOVE(xt, entry)do { if ((xt)->entry.le_next != ((void *)0)) (xt)->entry .le_next->entry.le_prev = (xt)->entry.le_prev; *(xt)-> entry.le_prev = (xt)->entry.le_next; ; ; } while (0); |
| 940 | LIST_INSERT_HEAD(&conf->tnbr_list, xt, entry)do { if (((xt)->entry.le_next = (&conf->tnbr_list)-> lh_first) != ((void *)0)) (&conf->tnbr_list)->lh_first ->entry.le_prev = &(xt)->entry.le_next; (&conf-> tnbr_list)->lh_first = (xt); (xt)->entry.le_prev = & (&conf->tnbr_list)->lh_first; } while (0); |
| 941 | |
| 942 | if (ldpd_process == PROC_LDP_ENGINE) |
| 943 | tnbr_update(xt); |
| 944 | continue; |
| 945 | } |
| 946 | |
| 947 | /* update existing tnbrs */ |
| 948 | if (!(tnbr->flags & F_TNBR_CONFIGURED0x01)) |
| 949 | tnbr->flags |= F_TNBR_CONFIGURED0x01; |
| 950 | tnbr->hello_holdtime = xt->hello_holdtime; |
| 951 | tnbr->hello_interval = xt->hello_interval; |
| 952 | LIST_REMOVE(xt, entry)do { if ((xt)->entry.le_next != ((void *)0)) (xt)->entry .le_next->entry.le_prev = (xt)->entry.le_prev; *(xt)-> entry.le_prev = (xt)->entry.le_next; ; ; } while (0); |
| 953 | free(xt); |
| 954 | } |
| 955 | } |
| 956 | |
| 957 | static void |
| 958 | merge_nbrps(struct ldpd_conf *conf, struct ldpd_conf *xconf) |
| 959 | { |
| 960 | struct nbr_params *nbrp, *ntmp, *xn; |
| 961 | struct nbr *nbr; |
| 962 | int nbrp_changed; |
| 963 | |
| 964 | LIST_FOREACH_SAFE(nbrp, &conf->nbrp_list, entry, ntmp)for ((nbrp) = ((&conf->nbrp_list)->lh_first); (nbrp ) && ((ntmp) = ((nbrp)->entry.le_next), 1); (nbrp) = (ntmp)) { |
| 965 | /* find deleted nbrps */ |
| 966 | if ((xn = nbr_params_find(xconf, nbrp->lsr_id)) == NULL((void *)0)) { |
| 967 | if (ldpd_process == PROC_LDP_ENGINE) { |
| 968 | nbr = nbr_find_ldpid(nbrp->lsr_id.s_addr); |
| 969 | if (nbr) { |
| 970 | session_shutdown(nbr, S_SHUTDOWN0x8000000A, 0, 0); |
| 971 | pfkey_remove(nbr); |
| 972 | if (nbr_session_active_role(nbr)) |
| 973 | nbr_establish_connection(nbr); |
| 974 | } |
| 975 | } |
| 976 | LIST_REMOVE(nbrp, entry)do { if ((nbrp)->entry.le_next != ((void *)0)) (nbrp)-> entry.le_next->entry.le_prev = (nbrp)->entry.le_prev; * (nbrp)->entry.le_prev = (nbrp)->entry.le_next; ; ; } while (0); |
| 977 | free(nbrp); |
| 978 | } |
| 979 | } |
| 980 | LIST_FOREACH_SAFE(xn, &xconf->nbrp_list, entry, ntmp)for ((xn) = ((&xconf->nbrp_list)->lh_first); (xn) && ((ntmp) = ((xn)->entry.le_next), 1); (xn) = (ntmp)) { |
| 981 | /* find new nbrps */ |
| 982 | if ((nbrp = nbr_params_find(conf, xn->lsr_id)) == NULL((void *)0)) { |
| 983 | LIST_REMOVE(xn, entry)do { if ((xn)->entry.le_next != ((void *)0)) (xn)->entry .le_next->entry.le_prev = (xn)->entry.le_prev; *(xn)-> entry.le_prev = (xn)->entry.le_next; ; ; } while (0); |
| 984 | LIST_INSERT_HEAD(&conf->nbrp_list, xn, entry)do { if (((xn)->entry.le_next = (&conf->nbrp_list)-> lh_first) != ((void *)0)) (&conf->nbrp_list)->lh_first ->entry.le_prev = &(xn)->entry.le_next; (&conf-> nbrp_list)->lh_first = (xn); (xn)->entry.le_prev = & (&conf->nbrp_list)->lh_first; } while (0); |
| 985 | |
| 986 | if (ldpd_process == PROC_LDP_ENGINE) { |
| 987 | nbr = nbr_find_ldpid(xn->lsr_id.s_addr); |
| 988 | if (nbr) { |
| 989 | session_shutdown(nbr, S_SHUTDOWN0x8000000A, 0, 0); |
| 990 | if (pfkey_establish(conf, nbr) == -1) |
| 991 | fatalx("pfkey setup failed"); |
| 992 | if (nbr_session_active_role(nbr)) |
| 993 | nbr_establish_connection(nbr); |
| 994 | } |
| 995 | } |
| 996 | continue; |
| 997 | } |
| 998 | |
| 999 | /* update existing nbrps */ |
| 1000 | if (nbrp->flags != xn->flags || |
| 1001 | nbrp->keepalive != xn->keepalive || |
| 1002 | nbrp->gtsm_enabled != xn->gtsm_enabled || |
| 1003 | nbrp->gtsm_hops != xn->gtsm_hops) |
| 1004 | nbrp_changed = 1; |
| 1005 | else |
| 1006 | nbrp_changed = 0; |
| 1007 | |
| 1008 | nbrp->keepalive = xn->keepalive; |
| 1009 | nbrp->gtsm_enabled = xn->gtsm_enabled; |
| 1010 | nbrp->gtsm_hops = xn->gtsm_hops; |
| 1011 | nbrp->flags = xn->flags; |
| 1012 | |
| 1013 | if (ldpd_process == PROC_LDP_ENGINE) { |
| 1014 | nbr = nbr_find_ldpid(nbrp->lsr_id.s_addr); |
| 1015 | if (nbr && nbrp_changed) { |
| 1016 | session_shutdown(nbr, S_SHUTDOWN0x8000000A, 0, 0); |
| 1017 | pfkey_remove(nbr); |
| 1018 | if (pfkey_establish(conf, nbr) == -1) |
| 1019 | fatalx("pfkey setup failed"); |
| 1020 | if (nbr_session_active_role(nbr)) |
| 1021 | nbr_establish_connection(nbr); |
| 1022 | } |
| 1023 | } |
| 1024 | LIST_REMOVE(xn, entry)do { if ((xn)->entry.le_next != ((void *)0)) (xn)->entry .le_next->entry.le_prev = (xn)->entry.le_prev; *(xn)-> entry.le_prev = (xn)->entry.le_next; ; ; } while (0); |
| 1025 | free(xn); |
| 1026 | } |
| 1027 | } |
| 1028 | |
| 1029 | static void |
| 1030 | merge_l2vpns(struct ldpd_conf *conf, struct ldpd_conf *xconf) |
| 1031 | { |
| 1032 | struct l2vpn *l2vpn, *ltmp, *xl; |
| 1033 | |
| 1034 | LIST_FOREACH_SAFE(l2vpn, &conf->l2vpn_list, entry, ltmp)for ((l2vpn) = ((&conf->l2vpn_list)->lh_first); (l2vpn ) && ((ltmp) = ((l2vpn)->entry.le_next), 1); (l2vpn ) = (ltmp)) { |
| 1035 | /* find deleted l2vpns */ |
| 1036 | if ((xl = l2vpn_find(xconf, l2vpn->name)) == NULL((void *)0)) { |
| 1037 | LIST_REMOVE(l2vpn, entry)do { if ((l2vpn)->entry.le_next != ((void *)0)) (l2vpn)-> entry.le_next->entry.le_prev = (l2vpn)->entry.le_prev; * (l2vpn)->entry.le_prev = (l2vpn)->entry.le_next; ; ; } while (0); |
| 1038 | |
| 1039 | switch (ldpd_process) { |
| 1040 | case PROC_LDE_ENGINE: |
| 1041 | l2vpn_exit(l2vpn); |
| 1042 | break; |
| 1043 | case PROC_LDP_ENGINE: |
| 1044 | ldpe_l2vpn_exit(l2vpn); |
| 1045 | break; |
| 1046 | case PROC_MAIN: |
| 1047 | break; |
| 1048 | } |
| 1049 | l2vpn_del(l2vpn); |
| 1050 | } |
| 1051 | } |
| 1052 | LIST_FOREACH_SAFE(xl, &xconf->l2vpn_list, entry, ltmp)for ((xl) = ((&xconf->l2vpn_list)->lh_first); (xl) && ((ltmp) = ((xl)->entry.le_next), 1); (xl) = (ltmp)) { |
| 1053 | /* find new l2vpns */ |
| 1054 | if ((l2vpn = l2vpn_find(conf, xl->name)) == NULL((void *)0)) { |
| 1055 | LIST_REMOVE(xl, entry)do { if ((xl)->entry.le_next != ((void *)0)) (xl)->entry .le_next->entry.le_prev = (xl)->entry.le_prev; *(xl)-> entry.le_prev = (xl)->entry.le_next; ; ; } while (0); |
| 1056 | LIST_INSERT_HEAD(&conf->l2vpn_list, xl, entry)do { if (((xl)->entry.le_next = (&conf->l2vpn_list) ->lh_first) != ((void *)0)) (&conf->l2vpn_list)-> lh_first->entry.le_prev = &(xl)->entry.le_next; (& conf->l2vpn_list)->lh_first = (xl); (xl)->entry.le_prev = &(&conf->l2vpn_list)->lh_first; } while (0); |
| 1057 | |
| 1058 | switch (ldpd_process) { |
| 1059 | case PROC_LDE_ENGINE: |
| 1060 | l2vpn_init(xl); |
| 1061 | break; |
| 1062 | case PROC_LDP_ENGINE: |
| 1063 | ldpe_l2vpn_init(xl); |
| 1064 | break; |
| 1065 | case PROC_MAIN: |
| 1066 | break; |
| 1067 | } |
| 1068 | continue; |
| 1069 | } |
| 1070 | |
| 1071 | /* update existing l2vpns */ |
| 1072 | merge_l2vpn(conf, l2vpn, xl); |
| 1073 | LIST_REMOVE(xl, entry)do { if ((xl)->entry.le_next != ((void *)0)) (xl)->entry .le_next->entry.le_prev = (xl)->entry.le_prev; *(xl)-> entry.le_prev = (xl)->entry.le_next; ; ; } while (0); |
| 1074 | free(xl); |
| 1075 | } |
| 1076 | } |
| 1077 | |
| 1078 | static void |
| 1079 | merge_l2vpn(struct ldpd_conf *xconf, struct l2vpn *l2vpn, struct l2vpn *xl) |
| 1080 | { |
| 1081 | struct l2vpn_if *lif, *ftmp, *xf; |
| 1082 | struct l2vpn_pw *pw, *ptmp, *xp; |
| 1083 | struct nbr *nbr; |
| 1084 | int reset_nbr, reinstall_pwfec, reinstall_tnbr; |
| 1085 | int previous_pw_type, previous_mtu; |
| 1086 | |
| 1087 | previous_pw_type = l2vpn->pw_type; |
| 1088 | previous_mtu = l2vpn->mtu; |
| 1089 | |
| 1090 | /* merge intefaces */ |
| 1091 | LIST_FOREACH_SAFE(lif, &l2vpn->if_list, entry, ftmp)for ((lif) = ((&l2vpn->if_list)->lh_first); (lif) && ((ftmp) = ((lif)->entry.le_next), 1); (lif) = (ftmp)) { |
| 1092 | /* find deleted interfaces */ |
| 1093 | if ((xf = l2vpn_if_find(xl, lif->ifindex)) == NULL((void *)0)) { |
| 1094 | LIST_REMOVE(lif, entry)do { if ((lif)->entry.le_next != ((void *)0)) (lif)->entry .le_next->entry.le_prev = (lif)->entry.le_prev; *(lif)-> entry.le_prev = (lif)->entry.le_next; ; ; } while (0); |
| 1095 | free(lif); |
| 1096 | } |
| 1097 | } |
| 1098 | LIST_FOREACH_SAFE(xf, &xl->if_list, entry, ftmp)for ((xf) = ((&xl->if_list)->lh_first); (xf) && ((ftmp) = ((xf)->entry.le_next), 1); (xf) = (ftmp)) { |
| 1099 | /* find new interfaces */ |
| 1100 | if ((lif = l2vpn_if_find(l2vpn, xf->ifindex)) == NULL((void *)0)) { |
| 1101 | LIST_REMOVE(xf, entry)do { if ((xf)->entry.le_next != ((void *)0)) (xf)->entry .le_next->entry.le_prev = (xf)->entry.le_prev; *(xf)-> entry.le_prev = (xf)->entry.le_next; ; ; } while (0); |
| 1102 | LIST_INSERT_HEAD(&l2vpn->if_list, xf, entry)do { if (((xf)->entry.le_next = (&l2vpn->if_list)-> lh_first) != ((void *)0)) (&l2vpn->if_list)->lh_first ->entry.le_prev = &(xf)->entry.le_next; (&l2vpn ->if_list)->lh_first = (xf); (xf)->entry.le_prev = & (&l2vpn->if_list)->lh_first; } while (0); |
| 1103 | xf->l2vpn = l2vpn; |
| 1104 | continue; |
| 1105 | } |
| 1106 | |
| 1107 | LIST_REMOVE(xf, entry)do { if ((xf)->entry.le_next != ((void *)0)) (xf)->entry .le_next->entry.le_prev = (xf)->entry.le_prev; *(xf)-> entry.le_prev = (xf)->entry.le_next; ; ; } while (0); |
| 1108 | free(xf); |
| 1109 | } |
| 1110 | |
| 1111 | /* merge pseudowires */ |
| 1112 | LIST_FOREACH_SAFE(pw, &l2vpn->pw_list, entry, ptmp)for ((pw) = ((&l2vpn->pw_list)->lh_first); (pw) && ((ptmp) = ((pw)->entry.le_next), 1); (pw) = (ptmp)) { |
| 1113 | /* find deleted pseudowires */ |
| 1114 | if ((xp = l2vpn_pw_find(xl, pw->ifindex)) == NULL((void *)0)) { |
Although the value stored to 'xp' is used in the enclosing expression, the value is never actually read from 'xp' | |
| 1115 | switch (ldpd_process) { |
| 1116 | case PROC_LDE_ENGINE: |
| 1117 | l2vpn_pw_exit(pw); |
| 1118 | break; |
| 1119 | case PROC_LDP_ENGINE: |
| 1120 | ldpe_l2vpn_pw_exit(pw); |
| 1121 | break; |
| 1122 | case PROC_MAIN: |
| 1123 | break; |
| 1124 | } |
| 1125 | |
| 1126 | LIST_REMOVE(pw, entry)do { if ((pw)->entry.le_next != ((void *)0)) (pw)->entry .le_next->entry.le_prev = (pw)->entry.le_prev; *(pw)-> entry.le_prev = (pw)->entry.le_next; ; ; } while (0); |
| 1127 | free(pw); |
| 1128 | } |
| 1129 | } |
| 1130 | LIST_FOREACH_SAFE(xp, &xl->pw_list, entry, ptmp)for ((xp) = ((&xl->pw_list)->lh_first); (xp) && ((ptmp) = ((xp)->entry.le_next), 1); (xp) = (ptmp)) { |
| 1131 | /* find new pseudowires */ |
| 1132 | if ((pw = l2vpn_pw_find(l2vpn, xp->ifindex)) == NULL((void *)0)) { |
| 1133 | LIST_REMOVE(xp, entry)do { if ((xp)->entry.le_next != ((void *)0)) (xp)->entry .le_next->entry.le_prev = (xp)->entry.le_prev; *(xp)-> entry.le_prev = (xp)->entry.le_next; ; ; } while (0); |
| 1134 | LIST_INSERT_HEAD(&l2vpn->pw_list, xp, entry)do { if (((xp)->entry.le_next = (&l2vpn->pw_list)-> lh_first) != ((void *)0)) (&l2vpn->pw_list)->lh_first ->entry.le_prev = &(xp)->entry.le_next; (&l2vpn ->pw_list)->lh_first = (xp); (xp)->entry.le_prev = & (&l2vpn->pw_list)->lh_first; } while (0); |
| 1135 | xp->l2vpn = l2vpn; |
| 1136 | |
| 1137 | switch (ldpd_process) { |
| 1138 | case PROC_LDE_ENGINE: |
| 1139 | l2vpn_pw_init(xp); |
| 1140 | break; |
| 1141 | case PROC_LDP_ENGINE: |
| 1142 | ldpe_l2vpn_pw_init(xp); |
| 1143 | break; |
| 1144 | case PROC_MAIN: |
| 1145 | break; |
| 1146 | } |
| 1147 | continue; |
| 1148 | } |
| 1149 | |
| 1150 | /* update existing pseudowire */ |
| 1151 | if (pw->af != xp->af || |
| 1152 | ldp_addrcmp(pw->af, &pw->addr, &xp->addr)) |
| 1153 | reinstall_tnbr = 1; |
| 1154 | else |
| 1155 | reinstall_tnbr = 0; |
| 1156 | |
| 1157 | /* changes that require a session restart */ |
| 1158 | if ((pw->flags & (F_PW_STATUSTLV_CONF0x01|F_PW_CWORD_CONF0x04)) != |
| 1159 | (xp->flags & (F_PW_STATUSTLV_CONF0x01|F_PW_CWORD_CONF0x04))) |
| 1160 | reset_nbr = 1; |
| 1161 | else |
| 1162 | reset_nbr = 0; |
| 1163 | |
| 1164 | if (l2vpn->pw_type != xl->pw_type || l2vpn->mtu != xl->mtu || |
| 1165 | pw->pwid != xp->pwid || reinstall_tnbr || reset_nbr || |
| 1166 | pw->lsr_id.s_addr != xp->lsr_id.s_addr) |
| 1167 | reinstall_pwfec = 1; |
| 1168 | else |
| 1169 | reinstall_pwfec = 0; |
| 1170 | |
| 1171 | if (ldpd_process == PROC_LDP_ENGINE) { |
| 1172 | if (reinstall_tnbr) |
| 1173 | ldpe_l2vpn_pw_exit(pw); |
| 1174 | if (reset_nbr) { |
| 1175 | nbr = nbr_find_ldpid(pw->lsr_id.s_addr); |
| 1176 | if (nbr && nbr->state == NBR_STA_OPER0x0010) |
| 1177 | session_shutdown(nbr, S_SHUTDOWN0x8000000A, 0, 0); |
| 1178 | } |
| 1179 | } |
| 1180 | if (ldpd_process == PROC_LDE_ENGINE && |
| 1181 | !reset_nbr && reinstall_pwfec) |
| 1182 | l2vpn_pw_exit(pw); |
| 1183 | pw->lsr_id = xp->lsr_id; |
| 1184 | pw->af = xp->af; |
| 1185 | pw->addr = xp->addr; |
| 1186 | pw->pwid = xp->pwid; |
| 1187 | strlcpy(pw->ifname, xp->ifname, sizeof(pw->ifname)); |
| 1188 | pw->ifindex = xp->ifindex; |
| 1189 | if (xp->flags & F_PW_CWORD_CONF0x04) |
| 1190 | pw->flags |= F_PW_CWORD_CONF0x04; |
| 1191 | else |
| 1192 | pw->flags &= ~F_PW_CWORD_CONF0x04; |
| 1193 | if (xp->flags & F_PW_STATUSTLV_CONF0x01) |
| 1194 | pw->flags |= F_PW_STATUSTLV_CONF0x01; |
| 1195 | else |
| 1196 | pw->flags &= ~F_PW_STATUSTLV_CONF0x01; |
| 1197 | if (ldpd_process == PROC_LDP_ENGINE && reinstall_tnbr) |
| 1198 | ldpe_l2vpn_pw_init(pw); |
| 1199 | if (ldpd_process == PROC_LDE_ENGINE && |
| 1200 | !reset_nbr && reinstall_pwfec) { |
| 1201 | l2vpn->pw_type = xl->pw_type; |
| 1202 | l2vpn->mtu = xl->mtu; |
| 1203 | l2vpn_pw_init(pw); |
| 1204 | l2vpn->pw_type = previous_pw_type; |
| 1205 | l2vpn->mtu = previous_mtu; |
| 1206 | } |
| 1207 | |
| 1208 | LIST_REMOVE(xp, entry)do { if ((xp)->entry.le_next != ((void *)0)) (xp)->entry .le_next->entry.le_prev = (xp)->entry.le_prev; *(xp)-> entry.le_prev = (xp)->entry.le_next; ; ; } while (0); |
| 1209 | free(xp); |
| 1210 | } |
| 1211 | |
| 1212 | l2vpn->pw_type = xl->pw_type; |
| 1213 | l2vpn->mtu = xl->mtu; |
| 1214 | strlcpy(l2vpn->br_ifname, xl->br_ifname, sizeof(l2vpn->br_ifname)); |
| 1215 | l2vpn->br_ifindex = xl->br_ifindex; |
| 1216 | } |
| 1217 | |
| 1218 | static struct ldp_auth * |
| 1219 | auth_find(struct ldpd_conf *conf, const struct ldp_auth *needle) |
| 1220 | { |
| 1221 | struct ldp_auth *auth; |
| 1222 | |
| 1223 | LIST_FOREACH(auth, &conf->auth_list, entry)for((auth) = ((&conf->auth_list)->lh_first); (auth) != ((void *)0); (auth) = ((auth)->entry.le_next)) { |
| 1224 | in_addr_t mask; |
| 1225 | if (needle->md5key_len != auth->md5key_len) |
| 1226 | continue; |
| 1227 | if (needle->idlen != auth->idlen) |
| 1228 | continue; |
| 1229 | |
| 1230 | if (memcmp(needle->md5key, auth->md5key, |
| 1231 | needle->md5key_len) != 0) |
| 1232 | continue; |
| 1233 | |
| 1234 | mask = prefixlen2mask(auth->idlen); |
| 1235 | if ((needle->id.s_addr & mask) != (auth->id.s_addr & mask)) |
| 1236 | continue; |
| 1237 | |
| 1238 | return (auth); |
| 1239 | } |
| 1240 | |
| 1241 | return (NULL((void *)0)); |
| 1242 | } |
| 1243 | |
| 1244 | static void |
| 1245 | merge_auths(struct ldpd_conf *conf, struct ldpd_conf *xconf) |
| 1246 | { |
| 1247 | struct ldp_auth *auth, *nauth, *xauth; |
| 1248 | |
| 1249 | /* find deleted auths */ |
| 1250 | LIST_FOREACH_SAFE(auth, &conf->auth_list, entry, nauth)for ((auth) = ((&conf->auth_list)->lh_first); (auth ) && ((nauth) = ((auth)->entry.le_next), 1); (auth ) = (nauth)) { |
| 1251 | xauth = auth_find(xconf, auth); |
| 1252 | if (xauth == NULL((void *)0)) |
| 1253 | continue; |
| 1254 | |
| 1255 | LIST_REMOVE(auth, entry)do { if ((auth)->entry.le_next != ((void *)0)) (auth)-> entry.le_next->entry.le_prev = (auth)->entry.le_prev; * (auth)->entry.le_prev = (auth)->entry.le_next; ; ; } while (0); |
| 1256 | |
| 1257 | free(auth); |
| 1258 | } |
| 1259 | |
| 1260 | /* find new auths */ |
| 1261 | LIST_FOREACH_SAFE(xauth, &xconf->auth_list, entry, nauth)for ((xauth) = ((&xconf->auth_list)->lh_first); (xauth ) && ((nauth) = ((xauth)->entry.le_next), 1); (xauth ) = (nauth)) { |
| 1262 | LIST_REMOVE(xauth, entry)do { if ((xauth)->entry.le_next != ((void *)0)) (xauth)-> entry.le_next->entry.le_prev = (xauth)->entry.le_prev; * (xauth)->entry.le_prev = (xauth)->entry.le_next; ; ; } while (0); |
| 1263 | |
| 1264 | auth = auth_find(conf, xauth); |
| 1265 | if (auth == NULL((void *)0)) { |
| 1266 | LIST_INSERT_HEAD(&conf->auth_list, xauth, entry)do { if (((xauth)->entry.le_next = (&conf->auth_list )->lh_first) != ((void *)0)) (&conf->auth_list)-> lh_first->entry.le_prev = &(xauth)->entry.le_next; ( &conf->auth_list)->lh_first = (xauth); (xauth)-> entry.le_prev = &(&conf->auth_list)->lh_first; } while (0); |
| 1267 | continue; |
| 1268 | } |
| 1269 | |
| 1270 | free(xauth); |
| 1271 | } |
| 1272 | } |
| 1273 | |
| 1274 | struct ldpd_conf * |
| 1275 | config_new_empty(void) |
| 1276 | { |
| 1277 | struct ldpd_conf *xconf; |
| 1278 | |
| 1279 | xconf = calloc(1, sizeof(*xconf)); |
| 1280 | if (xconf == NULL((void *)0)) |
| 1281 | fatal(NULL((void *)0)); |
| 1282 | |
| 1283 | LIST_INIT(&xconf->iface_list)do { ((&xconf->iface_list)->lh_first) = ((void *)0) ; } while (0); |
| 1284 | LIST_INIT(&xconf->tnbr_list)do { ((&xconf->tnbr_list)->lh_first) = ((void *)0); } while (0); |
| 1285 | LIST_INIT(&xconf->nbrp_list)do { ((&xconf->nbrp_list)->lh_first) = ((void *)0); } while (0); |
| 1286 | LIST_INIT(&xconf->l2vpn_list)do { ((&xconf->l2vpn_list)->lh_first) = ((void *)0) ; } while (0); |
| 1287 | LIST_INIT(&xconf->auth_list)do { ((&xconf->auth_list)->lh_first) = ((void *)0); } while (0); |
| 1288 | |
| 1289 | return (xconf); |
| 1290 | } |
| 1291 | |
| 1292 | void |
| 1293 | config_clear(struct ldpd_conf *conf) |
| 1294 | { |
| 1295 | struct ldpd_conf *xconf; |
| 1296 | |
| 1297 | /* |
| 1298 | * Merge current config with an empty config, this will deactivate |
| 1299 | * and deallocate all the interfaces, pseudowires and so on. Before |
| 1300 | * merging, copy the router-id and other variables to avoid some |
| 1301 | * unnecessary operations, like trying to reset the neighborships. |
| 1302 | */ |
| 1303 | xconf = config_new_empty(); |
| 1304 | xconf->ipv4 = conf->ipv4; |
| 1305 | xconf->ipv6 = conf->ipv6; |
| 1306 | xconf->rtr_id = conf->rtr_id; |
| 1307 | xconf->trans_pref = conf->trans_pref; |
| 1308 | xconf->flags = conf->flags; |
| 1309 | merge_config(conf, xconf); |
| 1310 | free(conf); |
| 1311 | } |