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