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718e3744 | 1 | /* |
2 | * OSPFd main routine. | |
3 | * Copyright (C) 1998, 99 Kunihiro Ishiguro, Toshiaki Takada | |
4 | * | |
5 | * This file is part of GNU Zebra. | |
6 | * | |
7 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2, or (at your option) any | |
10 | * later version. | |
11 | * | |
12 | * GNU Zebra is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with GNU Zebra; see the file COPYING. If not, write to the Free | |
19 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
20 | * 02111-1307, USA. | |
21 | */ | |
22 | ||
23 | #include <zebra.h> | |
24 | ||
5e4fa164 | 25 | #include <lib/version.h> |
718e3744 | 26 | #include "getopt.h" |
27 | #include "thread.h" | |
28 | #include "prefix.h" | |
29 | #include "linklist.h" | |
30 | #include "if.h" | |
31 | #include "vector.h" | |
32 | #include "vty.h" | |
33 | #include "command.h" | |
34 | #include "filter.h" | |
35 | #include "plist.h" | |
36 | #include "stream.h" | |
37 | #include "log.h" | |
38 | #include "memory.h" | |
fc7948fa | 39 | #include "memory_vty.h" |
edd7c245 | 40 | #include "privs.h" |
2d75d052 | 41 | #include "sigevent.h" |
b5114685 | 42 | #include "zclient.h" |
6a69b354 | 43 | #include "vrf.h" |
ff1c42fb | 44 | #include "sockopt.h" |
718e3744 | 45 | |
46 | #include "ospfd/ospfd.h" | |
47 | #include "ospfd/ospf_interface.h" | |
48 | #include "ospfd/ospf_asbr.h" | |
49 | #include "ospfd/ospf_lsa.h" | |
50 | #include "ospfd/ospf_lsdb.h" | |
51 | #include "ospfd/ospf_neighbor.h" | |
52 | #include "ospfd/ospf_dump.h" | |
53 | #include "ospfd/ospf_zebra.h" | |
54 | #include "ospfd/ospf_vty.h" | |
7f342629 | 55 | #include "ospfd/ospf_bfd.h" |
718e3744 | 56 | |
edd7c245 | 57 | /* ospfd privileges */ |
58 | zebra_capabilities_t _caps_p [] = | |
59 | { | |
ceacedba | 60 | ZCAP_NET_RAW, |
edd7c245 | 61 | ZCAP_BIND, |
ceacedba | 62 | ZCAP_NET_ADMIN, |
edd7c245 | 63 | }; |
64 | ||
65 | struct zebra_privs_t ospfd_privs = | |
66 | { | |
b2f36157 DL |
67 | #if defined(FRR_USER) && defined(FRR_GROUP) |
68 | .user = FRR_USER, | |
69 | .group = FRR_GROUP, | |
edd7c245 | 70 | #endif |
71 | #if defined(VTY_GROUP) | |
72 | .vty_group = VTY_GROUP, | |
73 | #endif | |
74 | .caps_p = _caps_p, | |
837d16cc | 75 | .cap_num_p = array_size(_caps_p), |
edd7c245 | 76 | .cap_num_i = 0 |
77 | }; | |
78 | ||
718e3744 | 79 | /* Configuration filename and directory. */ |
7c8ff89e | 80 | char config_default[100]; |
718e3744 | 81 | |
82 | /* OSPFd options. */ | |
9cbb9630 | 83 | #define OPTION_VTYSOCK 1000 |
718e3744 | 84 | struct option longopts[] = |
85 | { | |
86 | { "daemon", no_argument, NULL, 'd'}, | |
7c8ff89e | 87 | { "instance", required_argument, NULL, 'n'}, |
718e3744 | 88 | { "config_file", required_argument, NULL, 'f'}, |
89 | { "pid_file", required_argument, NULL, 'i'}, | |
b5114685 | 90 | { "socket", required_argument, NULL, 'z'}, |
876b8be0 | 91 | { "dryrun", no_argument, NULL, 'C'}, |
718e3744 | 92 | { "help", no_argument, NULL, 'h'}, |
93 | { "vty_addr", required_argument, NULL, 'A'}, | |
94 | { "vty_port", required_argument, NULL, 'P'}, | |
9cbb9630 | 95 | { "vty_socket", required_argument, NULL, OPTION_VTYSOCK}, |
edd7c245 | 96 | { "user", required_argument, NULL, 'u'}, |
c065230a | 97 | { "group", required_argument, NULL, 'g'}, |
c3abdb72 | 98 | { "apiserver", no_argument, NULL, 'a'}, |
718e3744 | 99 | { "version", no_argument, NULL, 'v'}, |
100 | { 0 } | |
101 | }; | |
102 | ||
103 | /* OSPFd program name */ | |
104 | ||
9cbb9630 MW |
105 | /* VTY Socket prefix */ |
106 | char vty_sock_path[MAXPATHLEN] = OSPF_VTYSH_PATH; | |
107 | ||
718e3744 | 108 | /* Master of threads. */ |
109 | struct thread_master *master; | |
110 | ||
111 | /* Process ID saved for use by init system */ | |
7c8ff89e | 112 | char pid_file[100]; |
718e3744 | 113 | |
d68614db | 114 | #ifdef SUPPORT_OSPF_API |
f4d58ce5 | 115 | extern int ospf_apiserver_enable; |
d68614db | 116 | #endif /* SUPPORT_OSPF_API */ |
c3abdb72 | 117 | |
718e3744 | 118 | /* Help information display. */ |
4dadc291 | 119 | static void __attribute__ ((noreturn)) |
718e3744 | 120 | usage (char *progname, int status) |
121 | { | |
122 | if (status != 0) | |
123 | fprintf (stderr, "Try `%s --help' for more information.\n", progname); | |
124 | else | |
125 | { | |
126 | printf ("Usage : %s [OPTION...]\n\ | |
127 | Daemon which manages OSPF.\n\n\ | |
128 | -d, --daemon Runs in daemon mode\n\ | |
7c8ff89e | 129 | -n, --instance Set the instance id\n\ |
718e3744 | 130 | -f, --config_file Set configuration file name\n\ |
131 | -i, --pid_file Set process identifier file name\n\ | |
b5114685 | 132 | -z, --socket Set path of zebra socket\n\ |
718e3744 | 133 | -A, --vty_addr Set vty's bind address\n\ |
134 | -P, --vty_port Set vty's port number\n\ | |
9cbb9630 | 135 | --vty_socket Override vty socket path\n\ |
c065230a | 136 | -u, --user User to run as\n\ |
137 | -g, --group Group to run as\n\ | |
c3abdb72 | 138 | -a. --apiserver Enable OSPF apiserver\n\ |
718e3744 | 139 | -v, --version Print program version\n\ |
876b8be0 | 140 | -C, --dryrun Check configuration for validity and exit\n\ |
718e3744 | 141 | -h, --help Display this help and exit\n\ |
142 | \n\ | |
b2f36157 | 143 | Report bugs to %s\n", progname, FRR_BUG_ADDRESS); |
718e3744 | 144 | } |
145 | exit (status); | |
146 | } | |
6b0655a2 | 147 | |
718e3744 | 148 | /* SIGHUP handler. */ |
4dadc291 | 149 | static void |
2d75d052 | 150 | sighup (void) |
718e3744 | 151 | { |
152 | zlog (NULL, LOG_INFO, "SIGHUP received"); | |
153 | } | |
154 | ||
88d6cf37 | 155 | /* SIGINT / SIGTERM handler. */ |
156 | static void | |
2d75d052 | 157 | sigint (void) |
718e3744 | 158 | { |
887c44a4 | 159 | zlog_notice ("Terminating on signal"); |
718e3744 | 160 | ospf_terminate (); |
718e3744 | 161 | } |
162 | ||
163 | /* SIGUSR1 handler. */ | |
4dadc291 | 164 | static void |
2d75d052 | 165 | sigusr1 (void) |
718e3744 | 166 | { |
167 | zlog_rotate (NULL); | |
168 | } | |
169 | ||
2d75d052 | 170 | struct quagga_signal_t ospf_signals[] = |
718e3744 | 171 | { |
2d75d052 | 172 | { |
173 | .signal = SIGHUP, | |
174 | .handler = &sighup, | |
175 | }, | |
176 | { | |
177 | .signal = SIGUSR1, | |
178 | .handler = &sigusr1, | |
179 | }, | |
180 | { | |
181 | .signal = SIGINT, | |
182 | .handler = &sigint, | |
183 | }, | |
f571dab0 | 184 | { |
185 | .signal = SIGTERM, | |
186 | .handler = &sigint, | |
187 | }, | |
2d75d052 | 188 | }; |
6b0655a2 | 189 | |
718e3744 | 190 | /* OSPFd main routine. */ |
191 | int | |
192 | main (int argc, char **argv) | |
193 | { | |
194 | char *p; | |
195 | char *vty_addr = NULL; | |
4fc4e7ab | 196 | int vty_port = OSPF_VTY_PORT; |
7c8ff89e | 197 | char vty_path[100]; |
718e3744 | 198 | int daemon_mode = 0; |
199 | char *config_file = NULL; | |
200 | char *progname; | |
7c8ff89e | 201 | u_short instance = 0; |
718e3744 | 202 | struct thread thread; |
876b8be0 | 203 | int dryrun = 0; |
718e3744 | 204 | |
205 | /* Set umask before anything for security */ | |
206 | umask (0027); | |
207 | ||
822d8f55 DL |
208 | #ifdef SUPPORT_OSPF_API |
209 | /* OSPF apiserver is disabled by default. */ | |
210 | ospf_apiserver_enable = 0; | |
211 | #endif /* SUPPORT_OSPF_API */ | |
212 | ||
bb5ea4a6 | 213 | strcpy(pid_file, PATH_OSPFD_PID); |
214 | ||
718e3744 | 215 | /* get program name */ |
216 | progname = ((p = strrchr (argv[0], '/')) ? ++p : argv[0]); | |
217 | ||
718e3744 | 218 | while (1) |
219 | { | |
220 | int opt; | |
221 | ||
7c8ff89e | 222 | opt = getopt_long (argc, argv, "df:i:n:z:hA:P:u:g:avC", longopts, 0); |
718e3744 | 223 | |
224 | if (opt == EOF) | |
225 | break; | |
226 | ||
227 | switch (opt) | |
228 | { | |
7c8ff89e DS |
229 | case 'n': |
230 | instance = atoi(optarg); | |
988225dd | 231 | if (instance < 1) |
7c8ff89e DS |
232 | exit(0); |
233 | break; | |
718e3744 | 234 | case 0: |
235 | break; | |
236 | case 'd': | |
237 | daemon_mode = 1; | |
238 | break; | |
239 | case 'f': | |
240 | config_file = optarg; | |
241 | break; | |
242 | case 'A': | |
243 | vty_addr = optarg; | |
244 | break; | |
245 | case 'i': | |
7c8ff89e | 246 | strcpy(pid_file,optarg); |
718e3744 | 247 | break; |
b5114685 VT |
248 | case 'z': |
249 | zclient_serv_path_set (optarg); | |
250 | break; | |
718e3744 | 251 | case 'P': |
4fc4e7ab | 252 | /* Deal with atoi() returning 0 on failure, and ospfd not |
253 | listening on ospfd port... */ | |
254 | if (strcmp(optarg, "0") == 0) | |
255 | { | |
256 | vty_port = 0; | |
257 | break; | |
258 | } | |
259 | vty_port = atoi (optarg); | |
0d6b2ee2 PJ |
260 | if (vty_port <= 0 || vty_port > 0xffff) |
261 | vty_port = OSPF_VTY_PORT; | |
4fc4e7ab | 262 | break; |
9cbb9630 MW |
263 | case OPTION_VTYSOCK: |
264 | set_socket_path(vty_sock_path, OSPF_VTYSH_PATH, optarg, sizeof (vty_sock_path)); | |
265 | break; | |
c3abdb72 | 266 | case 'u': |
c065230a | 267 | ospfd_privs.user = optarg; |
268 | break; | |
269 | case 'g': | |
270 | ospfd_privs.group = optarg; | |
c3abdb72 | 271 | break; |
d68614db | 272 | #ifdef SUPPORT_OSPF_API |
c3abdb72 | 273 | case 'a': |
274 | ospf_apiserver_enable = 1; | |
275 | break; | |
d68614db | 276 | #endif /* SUPPORT_OSPF_API */ |
718e3744 | 277 | case 'v': |
278 | print_version (progname); | |
279 | exit (0); | |
280 | break; | |
876b8be0 PJ |
281 | case 'C': |
282 | dryrun = 1; | |
283 | break; | |
718e3744 | 284 | case 'h': |
285 | usage (progname, 0); | |
286 | break; | |
287 | default: | |
288 | usage (progname, 1); | |
289 | break; | |
290 | } | |
291 | } | |
292 | ||
b5114685 VT |
293 | /* Invoked by a priviledged user? -- endo. */ |
294 | if (geteuid () != 0) | |
295 | { | |
296 | errno = EPERM; | |
297 | perror (progname); | |
298 | exit (1); | |
299 | } | |
300 | ||
7c8ff89e | 301 | zlog_default = openzlog (progname, ZLOG_OSPF, instance, |
b5114685 | 302 | LOG_CONS|LOG_NDELAY|LOG_PID, LOG_DAEMON); |
2caa9b39 | 303 | zprivs_init (&ospfd_privs); |
c05795b1 SK |
304 | #if defined(HAVE_CUMULUS) |
305 | zlog_set_level (NULL, ZLOG_DEST_SYSLOG, zlog_default->default_lvl); | |
306 | #endif | |
b5114685 VT |
307 | |
308 | /* OSPF master init. */ | |
309 | ospf_master_init (); | |
310 | ||
718e3744 | 311 | /* Initializations. */ |
020709f9 | 312 | master = om->master; |
718e3744 | 313 | |
314 | /* Library inits. */ | |
837d16cc | 315 | signal_init (master, array_size(ospf_signals), ospf_signals); |
718e3744 | 316 | cmd_init (1); |
317 | debug_init (); | |
b21b19c5 | 318 | vty_init (master); |
718e3744 | 319 | memory_init (); |
6a69b354 | 320 | vrf_init (); |
718e3744 | 321 | |
322 | access_list_init (); | |
323 | prefix_list_init (); | |
324 | ||
325 | /* OSPFd inits. */ | |
718e3744 | 326 | ospf_if_init (); |
4140ca4d | 327 | ospf_zebra_init(master, instance); |
718e3744 | 328 | |
329 | /* OSPF vty inits. */ | |
330 | ospf_vty_init (); | |
331 | ospf_vty_show_init (); | |
09f35f8c | 332 | ospf_vty_clear_init (); |
718e3744 | 333 | |
7f342629 DS |
334 | /* OSPF BFD init */ |
335 | ospf_bfd_init(); | |
336 | ||
718e3744 | 337 | ospf_route_map_init (); |
338 | #ifdef HAVE_SNMP | |
339 | ospf_snmp_init (); | |
340 | #endif /* HAVE_SNMP */ | |
718e3744 | 341 | ospf_opaque_init (); |
718e3744 | 342 | |
6dae198f DS |
343 | /* Need to initialize the default ospf structure, so the interface mode |
344 | commands can be duly processed if they are received before 'router ospf', | |
345 | when quagga(ospfd) is restarted */ | |
7c8ff89e | 346 | if (!ospf_get_instance(instance)) |
6dae198f DS |
347 | { |
348 | zlog_err("OSPF instance init failed: %s", strerror(errno)); | |
349 | exit (1); | |
350 | } | |
351 | ||
718e3744 | 352 | /* Get configuration file. */ |
7c8ff89e DS |
353 | if (instance) |
354 | sprintf(config_default, "%sospfd-%d.conf", SYSCONFDIR, instance); | |
355 | else | |
356 | sprintf(config_default, "%s%s", SYSCONFDIR, OSPF_DEFAULT_CONFIG); | |
320ec10a | 357 | vty_read_config (config_file, config_default); |
718e3744 | 358 | |
876b8be0 PJ |
359 | /* Start execution only if not in dry-run mode */ |
360 | if (dryrun) | |
361 | return(0); | |
362 | ||
718e3744 | 363 | /* Change to the daemon program. */ |
065de903 SH |
364 | if (daemon_mode && daemon (0, 0) < 0) |
365 | { | |
366 | zlog_err("OSPFd daemon failed: %s", strerror(errno)); | |
367 | exit (1); | |
368 | } | |
718e3744 | 369 | |
9cbb9630 MW |
370 | /* Create PID file */ |
371 | if (instance) | |
372 | { | |
373 | char pidfile_temp[100]; | |
374 | ||
375 | /* Override the single file with file including instance | |
376 | number in case of multi-instance */ | |
377 | if (strrchr(pid_file, '/') != NULL) | |
378 | /* cut of pid_file at last / char * to get directory */ | |
379 | *strrchr(pid_file, '/') = '\0'; | |
380 | else | |
381 | /* pid_file contains no directory - should never happen, but deal with it anyway */ | |
382 | /* throw-away all pid_file and assume it's only the filename */ | |
383 | pid_file[0] = '\0'; | |
384 | ||
385 | snprintf(pidfile_temp, sizeof(pidfile_temp), "%s/ospfd-%d.pid", pid_file, instance ); | |
67e5d676 | 386 | strlcpy(pid_file, pidfile_temp, sizeof(pid_file)); |
9cbb9630 MW |
387 | } |
388 | /* Process id file create. */ | |
389 | pid_output (pid_file); | |
390 | ||
7c8ff89e DS |
391 | /* Create VTY socket */ |
392 | if (instance) | |
393 | { | |
9cbb9630 MW |
394 | /* Multi-Instance. Use only path section of vty_sock_path with new file incl instance */ |
395 | if (strrchr(vty_sock_path, '/') != NULL) | |
396 | { | |
397 | /* cut of pid_file at last / char * to get directory */ | |
398 | *strrchr(vty_sock_path, '/') = '\0'; | |
399 | } | |
400 | else | |
401 | { | |
402 | /* pid_file contains no directory - should never happen, but deal with it anyway */ | |
403 | /* throw-away all pid_file and assume it's only the filename */ | |
404 | vty_sock_path[0] = '\0'; | |
405 | } | |
406 | snprintf(vty_path, sizeof(vty_path), "%s/ospfd-%d.vty", vty_sock_path, instance ); | |
7c8ff89e DS |
407 | } |
408 | else | |
409 | { | |
9cbad1d7 | 410 | strlcpy(vty_path, vty_sock_path, sizeof(vty_path)); |
7c8ff89e | 411 | } |
7c8ff89e | 412 | vty_serv_sock (vty_addr, vty_port, vty_path); |
718e3744 | 413 | |
414 | /* Print banner. */ | |
b2f36157 | 415 | zlog_notice ("OSPFd %s starting: vty@%d, %s", FRR_VERSION, vty_port, vty_path); |
718e3744 | 416 | |
417 | /* Fetch next active thread. */ | |
418 | while (thread_fetch (master, &thread)) | |
419 | thread_call (&thread); | |
420 | ||
421 | /* Not reached. */ | |
e8e1946e | 422 | return (0); |
718e3744 | 423 | } |
424 |