Annotation of embedaddon/quagga/ospfd/ospf_main.c, revision 1.1.1.3
1.1 misho 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:
25: #include <lib/version.h>
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"
39: #include "privs.h"
40: #include "sigevent.h"
1.1.1.2 misho 41: #include "zclient.h"
1.1 misho 42:
43: #include "ospfd/ospfd.h"
44: #include "ospfd/ospf_interface.h"
45: #include "ospfd/ospf_asbr.h"
46: #include "ospfd/ospf_lsa.h"
47: #include "ospfd/ospf_lsdb.h"
48: #include "ospfd/ospf_neighbor.h"
49: #include "ospfd/ospf_dump.h"
50: #include "ospfd/ospf_zebra.h"
51: #include "ospfd/ospf_vty.h"
52:
53: /* ospfd privileges */
54: zebra_capabilities_t _caps_p [] =
55: {
56: ZCAP_NET_RAW,
57: ZCAP_BIND,
58: ZCAP_NET_ADMIN,
59: };
60:
61: struct zebra_privs_t ospfd_privs =
62: {
63: #if defined(QUAGGA_USER) && defined(QUAGGA_GROUP)
64: .user = QUAGGA_USER,
65: .group = QUAGGA_GROUP,
66: #endif
67: #if defined(VTY_GROUP)
68: .vty_group = VTY_GROUP,
69: #endif
70: .caps_p = _caps_p,
1.1.1.3 ! misho 71: .cap_num_p = array_size(_caps_p),
1.1 misho 72: .cap_num_i = 0
73: };
74:
75: /* Configuration filename and directory. */
76: char config_default[] = SYSCONFDIR OSPF_DEFAULT_CONFIG;
77:
78: /* OSPFd options. */
79: struct option longopts[] =
80: {
81: { "daemon", no_argument, NULL, 'd'},
82: { "config_file", required_argument, NULL, 'f'},
83: { "pid_file", required_argument, NULL, 'i'},
1.1.1.2 misho 84: { "socket", required_argument, NULL, 'z'},
1.1 misho 85: { "dryrun", no_argument, NULL, 'C'},
86: { "help", no_argument, NULL, 'h'},
87: { "vty_addr", required_argument, NULL, 'A'},
88: { "vty_port", required_argument, NULL, 'P'},
89: { "user", required_argument, NULL, 'u'},
90: { "group", required_argument, NULL, 'g'},
91: { "apiserver", no_argument, NULL, 'a'},
92: { "version", no_argument, NULL, 'v'},
93: { 0 }
94: };
95:
96: /* OSPFd program name */
97:
98: /* Master of threads. */
99: struct thread_master *master;
100:
101: /* Process ID saved for use by init system */
102: const char *pid_file = PATH_OSPFD_PID;
103:
104: #ifdef SUPPORT_OSPF_API
105: extern int ospf_apiserver_enable;
106: #endif /* SUPPORT_OSPF_API */
107:
108: /* Help information display. */
109: static void __attribute__ ((noreturn))
110: usage (char *progname, int status)
111: {
112: if (status != 0)
113: fprintf (stderr, "Try `%s --help' for more information.\n", progname);
114: else
115: {
116: printf ("Usage : %s [OPTION...]\n\
117: Daemon which manages OSPF.\n\n\
118: -d, --daemon Runs in daemon mode\n\
119: -f, --config_file Set configuration file name\n\
120: -i, --pid_file Set process identifier file name\n\
1.1.1.2 misho 121: -z, --socket Set path of zebra socket\n\
1.1 misho 122: -A, --vty_addr Set vty's bind address\n\
123: -P, --vty_port Set vty's port number\n\
124: -u, --user User to run as\n\
125: -g, --group Group to run as\n\
126: -a. --apiserver Enable OSPF apiserver\n\
127: -v, --version Print program version\n\
128: -C, --dryrun Check configuration for validity and exit\n\
129: -h, --help Display this help and exit\n\
130: \n\
131: Report bugs to %s\n", progname, ZEBRA_BUG_ADDRESS);
132: }
133: exit (status);
134: }
135:
136: /* SIGHUP handler. */
137: static void
138: sighup (void)
139: {
140: zlog (NULL, LOG_INFO, "SIGHUP received");
141: }
142:
143: /* SIGINT / SIGTERM handler. */
144: static void
145: sigint (void)
146: {
147: zlog_notice ("Terminating on signal");
148: ospf_terminate ();
149: }
150:
151: /* SIGUSR1 handler. */
152: static void
153: sigusr1 (void)
154: {
155: zlog_rotate (NULL);
156: }
157:
158: struct quagga_signal_t ospf_signals[] =
159: {
160: {
161: .signal = SIGHUP,
162: .handler = &sighup,
163: },
164: {
165: .signal = SIGUSR1,
166: .handler = &sigusr1,
167: },
168: {
169: .signal = SIGINT,
170: .handler = &sigint,
171: },
172: {
173: .signal = SIGTERM,
174: .handler = &sigint,
175: },
176: };
177:
178: /* OSPFd main routine. */
179: int
180: main (int argc, char **argv)
181: {
182: char *p;
183: char *vty_addr = NULL;
184: int vty_port = OSPF_VTY_PORT;
185: int daemon_mode = 0;
186: char *config_file = NULL;
187: char *progname;
188: struct thread thread;
189: int dryrun = 0;
190:
191: /* Set umask before anything for security */
192: umask (0027);
193:
1.1.1.3 ! misho 194: #ifdef SUPPORT_OSPF_API
! 195: /* OSPF apiserver is disabled by default. */
! 196: ospf_apiserver_enable = 0;
! 197: #endif /* SUPPORT_OSPF_API */
! 198:
1.1 misho 199: /* get program name */
200: progname = ((p = strrchr (argv[0], '/')) ? ++p : argv[0]);
201:
202: while (1)
203: {
204: int opt;
205:
1.1.1.2 misho 206: opt = getopt_long (argc, argv, "df:i:z:hA:P:u:g:avC", longopts, 0);
1.1 misho 207:
208: if (opt == EOF)
209: break;
210:
211: switch (opt)
212: {
213: case 0:
214: break;
215: case 'd':
216: daemon_mode = 1;
217: break;
218: case 'f':
219: config_file = optarg;
220: break;
221: case 'A':
222: vty_addr = optarg;
223: break;
224: case 'i':
225: pid_file = optarg;
226: break;
1.1.1.2 misho 227: case 'z':
228: zclient_serv_path_set (optarg);
229: break;
1.1 misho 230: case 'P':
231: /* Deal with atoi() returning 0 on failure, and ospfd not
232: listening on ospfd port... */
233: if (strcmp(optarg, "0") == 0)
234: {
235: vty_port = 0;
236: break;
237: }
238: vty_port = atoi (optarg);
239: if (vty_port <= 0 || vty_port > 0xffff)
240: vty_port = OSPF_VTY_PORT;
241: break;
242: case 'u':
243: ospfd_privs.user = optarg;
244: break;
245: case 'g':
246: ospfd_privs.group = optarg;
247: break;
248: #ifdef SUPPORT_OSPF_API
249: case 'a':
250: ospf_apiserver_enable = 1;
251: break;
252: #endif /* SUPPORT_OSPF_API */
253: case 'v':
254: print_version (progname);
255: exit (0);
256: break;
257: case 'C':
258: dryrun = 1;
259: break;
260: case 'h':
261: usage (progname, 0);
262: break;
263: default:
264: usage (progname, 1);
265: break;
266: }
267: }
268:
1.1.1.2 misho 269: /* Invoked by a priviledged user? -- endo. */
270: if (geteuid () != 0)
271: {
272: errno = EPERM;
273: perror (progname);
274: exit (1);
275: }
276:
277: zlog_default = openzlog (progname, ZLOG_OSPF,
278: LOG_CONS|LOG_NDELAY|LOG_PID, LOG_DAEMON);
279:
280: /* OSPF master init. */
281: ospf_master_init ();
282:
1.1 misho 283: /* Initializations. */
284: master = om->master;
285:
286: /* Library inits. */
287: zprivs_init (&ospfd_privs);
1.1.1.3 ! misho 288: signal_init (master, array_size(ospf_signals), ospf_signals);
1.1 misho 289: cmd_init (1);
290: debug_init ();
291: vty_init (master);
292: memory_init ();
293:
294: access_list_init ();
295: prefix_list_init ();
296:
297: /* OSPFd inits. */
298: ospf_if_init ();
299: ospf_zebra_init ();
300:
301: /* OSPF vty inits. */
302: ospf_vty_init ();
303: ospf_vty_show_init ();
304:
305: ospf_route_map_init ();
306: #ifdef HAVE_SNMP
307: ospf_snmp_init ();
308: #endif /* HAVE_SNMP */
309: #ifdef HAVE_OPAQUE_LSA
310: ospf_opaque_init ();
311: #endif /* HAVE_OPAQUE_LSA */
312:
313: sort_node ();
314:
315: /* Get configuration file. */
316: vty_read_config (config_file, config_default);
317:
318: /* Start execution only if not in dry-run mode */
319: if (dryrun)
320: return(0);
321:
322: /* Change to the daemon program. */
323: if (daemon_mode && daemon (0, 0) < 0)
324: {
325: zlog_err("OSPFd daemon failed: %s", strerror(errno));
326: exit (1);
327: }
328:
329: /* Process id file create. */
330: pid_output (pid_file);
331:
332: /* Create VTY socket */
333: vty_serv_sock (vty_addr, vty_port, OSPF_VTYSH_PATH);
334:
335: /* Print banner. */
336: zlog_notice ("OSPFd %s starting: vty@%d", QUAGGA_VERSION, vty_port);
337:
338: /* Fetch next active thread. */
339: while (thread_fetch (master, &thread))
340: thread_call (&thread);
341:
342: /* Not reached. */
343: return (0);
344: }
345:
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