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718e3744 | 1 | /* |
2 | * RIPngd main routine. | |
3 | * Copyright (C) 1998, 1999 Kunihiro Ishiguro | |
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 "vector.h" | |
28 | #include "vty.h" | |
29 | #include "command.h" | |
a94434b6 | 30 | #include "memory.h" |
718e3744 | 31 | #include "thread.h" |
32 | #include "log.h" | |
33 | #include "prefix.h" | |
34 | #include "if.h" | |
edd7c245 | 35 | #include "privs.h" |
2d75d052 | 36 | #include "sigevent.h" |
718e3744 | 37 | |
38 | #include "ripngd/ripngd.h" | |
39 | ||
40 | /* Configuration filename and directory. */ | |
718e3744 | 41 | char config_default[] = SYSCONFDIR RIPNG_DEFAULT_CONFIG; |
a94434b6 | 42 | char *config_file = NULL; |
718e3744 | 43 | |
44 | /* RIPngd options. */ | |
45 | struct option longopts[] = | |
46 | { | |
47 | { "daemon", no_argument, NULL, 'd'}, | |
48 | { "config_file", required_argument, NULL, 'f'}, | |
49 | { "pid_file", required_argument, NULL, 'i'}, | |
50 | { "log_mode", no_argument, NULL, 'l'}, | |
876b8be0 | 51 | { "dryrun", no_argument, NULL, 'C'}, |
718e3744 | 52 | { "help", no_argument, NULL, 'h'}, |
53 | { "vty_addr", required_argument, NULL, 'A'}, | |
54 | { "vty_port", required_argument, NULL, 'P'}, | |
55 | { "retain", no_argument, NULL, 'r'}, | |
edd7c245 | 56 | { "user", required_argument, NULL, 'u'}, |
c065230a | 57 | { "group", required_argument, NULL, 'g'}, |
718e3744 | 58 | { "version", no_argument, NULL, 'v'}, |
59 | { 0 } | |
60 | }; | |
61 | ||
edd7c245 | 62 | /* ripngd privileges */ |
63 | zebra_capabilities_t _caps_p [] = | |
64 | { | |
ceacedba | 65 | ZCAP_NET_RAW, |
edd7c245 | 66 | ZCAP_BIND |
67 | }; | |
68 | ||
69 | struct zebra_privs_t ripngd_privs = | |
70 | { | |
d81fadfd | 71 | #if defined(QUAGGA_USER) |
72 | .user = QUAGGA_USER, | |
edd7c245 | 73 | #endif |
d81fadfd | 74 | #if defined QUAGGA_GROUP |
75 | .group = QUAGGA_GROUP, | |
76 | #endif | |
77 | #ifdef VTY_GROUP | |
78 | .vty_group = VTY_GROUP, | |
edd7c245 | 79 | #endif |
80 | .caps_p = _caps_p, | |
81 | .cap_num_p = 2, | |
82 | .cap_num_i = 0 | |
83 | }; | |
84 | ||
85 | ||
718e3744 | 86 | /* RIPngd program name */ |
87 | ||
88 | /* Route retain mode flag. */ | |
89 | int retain_mode = 0; | |
90 | ||
a94434b6 | 91 | /* RIPng VTY bind address. */ |
92 | char *vty_addr = NULL; | |
93 | ||
94 | /* RIPng VTY connection port. */ | |
95 | int vty_port = RIPNG_VTY_PORT; | |
96 | ||
718e3744 | 97 | /* Master of threads. */ |
98 | struct thread_master *master; | |
99 | ||
100 | /* Process ID saved for use by init system */ | |
7a1d583c | 101 | const char *pid_file = PATH_RIPNGD_PID; |
718e3744 | 102 | |
103 | /* Help information display. */ | |
104 | static void | |
105 | usage (char *progname, int status) | |
106 | { | |
107 | if (status != 0) | |
108 | fprintf (stderr, "Try `%s --help' for more information.\n", progname); | |
109 | else | |
110 | { | |
111 | printf ("Usage : %s [OPTION...]\n\ | |
112 | Daemon which manages RIPng.\n\n\ | |
113 | -d, --daemon Runs in daemon mode\n\ | |
114 | -f, --config_file Set configuration file name\n\ | |
115 | -i, --pid_file Set process identifier file name\n\ | |
116 | -l. --log_mode Set verbose log mode flag\n\ | |
117 | -A, --vty_addr Set vty's bind address\n\ | |
118 | -P, --vty_port Set vty's port number\n\ | |
119 | -r, --retain When program terminates, retain added route by ripngd.\n\ | |
c065230a | 120 | -u, --user User to run as\n\ |
121 | -g, --group Group to run as\n\ | |
718e3744 | 122 | -v, --version Print program version\n\ |
876b8be0 | 123 | -C, --dryrun Check configuration for validity and exit\n\ |
718e3744 | 124 | -h, --help Display this help and exit\n\ |
125 | \n\ | |
126 | Report bugs to %s\n", progname, ZEBRA_BUG_ADDRESS); | |
127 | } | |
128 | exit (status); | |
129 | } | |
130 | \f | |
131 | /* SIGHUP handler. */ | |
132 | void | |
2d75d052 | 133 | sighup (void) |
718e3744 | 134 | { |
a94434b6 | 135 | zlog_info ("SIGHUP received"); |
136 | ripng_clean (); | |
137 | ripng_reset (); | |
a94434b6 | 138 | |
139 | /* Reload config file. */ | |
320ec10a | 140 | vty_read_config (config_file, config_default); |
a94434b6 | 141 | /* Create VTY's socket */ |
142 | vty_serv_sock (vty_addr, vty_port, RIPNG_VTYSH_PATH); | |
143 | ||
144 | /* Try to return to normal operation. */ | |
718e3744 | 145 | } |
146 | ||
147 | /* SIGINT handler. */ | |
148 | void | |
2d75d052 | 149 | sigint (void) |
718e3744 | 150 | { |
887c44a4 | 151 | zlog_notice ("Terminating on signal"); |
718e3744 | 152 | |
153 | if (! retain_mode) | |
a94434b6 | 154 | ripng_clean (); |
718e3744 | 155 | |
156 | exit (0); | |
157 | } | |
158 | ||
159 | /* SIGUSR1 handler. */ | |
160 | void | |
2d75d052 | 161 | sigusr1 (void) |
718e3744 | 162 | { |
163 | zlog_rotate (NULL); | |
164 | } | |
165 | ||
2d75d052 | 166 | struct quagga_signal_t ripng_signals[] = |
718e3744 | 167 | { |
2d75d052 | 168 | { |
169 | .signal = SIGHUP, | |
170 | .handler = &sighup, | |
171 | }, | |
172 | { | |
173 | .signal = SIGUSR1, | |
174 | .handler = &sigusr1, | |
175 | }, | |
176 | { | |
177 | .signal = SIGINT, | |
178 | .handler = &sigint, | |
179 | }, | |
f571dab0 | 180 | { |
181 | .signal = SIGTERM, | |
182 | .handler = &sigint, | |
183 | }, | |
2d75d052 | 184 | }; |
718e3744 | 185 | \f |
186 | /* RIPngd main routine. */ | |
187 | int | |
188 | main (int argc, char **argv) | |
189 | { | |
190 | char *p; | |
4fc4e7ab | 191 | int vty_port = RIPNG_VTY_PORT; |
718e3744 | 192 | int daemon_mode = 0; |
718e3744 | 193 | char *progname; |
194 | struct thread thread; | |
876b8be0 | 195 | int dryrun = 0; |
718e3744 | 196 | |
197 | /* Set umask before anything for security */ | |
198 | umask (0027); | |
199 | ||
200 | /* get program name */ | |
201 | progname = ((p = strrchr (argv[0], '/')) ? ++p : argv[0]); | |
202 | ||
274a4a44 | 203 | zlog_default = openzlog(progname, ZLOG_RIPNG, |
718e3744 | 204 | LOG_CONS|LOG_NDELAY|LOG_PID, LOG_DAEMON); |
205 | ||
206 | while (1) | |
207 | { | |
208 | int opt; | |
209 | ||
876b8be0 | 210 | opt = getopt_long (argc, argv, "dlf:i:hA:P:u:g:vC", longopts, 0); |
718e3744 | 211 | |
212 | if (opt == EOF) | |
213 | break; | |
214 | ||
215 | switch (opt) | |
216 | { | |
217 | case 0: | |
218 | break; | |
219 | case 'd': | |
220 | daemon_mode = 1; | |
221 | break; | |
222 | case 'l': | |
223 | /* log_mode = 1; */ | |
224 | break; | |
225 | case 'f': | |
226 | config_file = optarg; | |
227 | break; | |
228 | case 'A': | |
229 | vty_addr = optarg; | |
230 | break; | |
231 | case 'i': | |
232 | pid_file = optarg; | |
4fc4e7ab | 233 | break; |
718e3744 | 234 | case 'P': |
4fc4e7ab | 235 | /* Deal with atoi() returning 0 on failure, and ripngd not |
236 | listening on ripngd port... */ | |
237 | if (strcmp(optarg, "0") == 0) | |
238 | { | |
239 | vty_port = 0; | |
240 | break; | |
241 | } | |
242 | vty_port = atoi (optarg); | |
243 | vty_port = (vty_port ? vty_port : RIPNG_VTY_PORT); | |
244 | break; | |
718e3744 | 245 | case 'r': |
246 | retain_mode = 1; | |
247 | break; | |
c065230a | 248 | case 'u': |
249 | ripngd_privs.user = optarg; | |
250 | break; | |
251 | case 'g': | |
252 | ripngd_privs.group = optarg; | |
253 | break; | |
718e3744 | 254 | case 'v': |
255 | print_version (progname); | |
256 | exit (0); | |
257 | break; | |
876b8be0 PJ |
258 | case 'C': |
259 | dryrun = 1; | |
260 | break; | |
718e3744 | 261 | case 'h': |
262 | usage (progname, 0); | |
263 | break; | |
264 | default: | |
265 | usage (progname, 1); | |
266 | break; | |
267 | } | |
268 | } | |
269 | ||
270 | master = thread_master_create (); | |
271 | ||
272 | /* Library inits. */ | |
edd7c245 | 273 | zprivs_init (&ripngd_privs); |
2d75d052 | 274 | signal_init (master, Q_SIGC(ripng_signals), ripng_signals); |
718e3744 | 275 | cmd_init (1); |
b21b19c5 | 276 | vty_init (master); |
a94434b6 | 277 | memory_init (); |
718e3744 | 278 | |
279 | /* RIPngd inits. */ | |
280 | ripng_init (); | |
281 | zebra_init (); | |
a94434b6 | 282 | ripng_peer_init (); |
283 | ||
284 | /* Sort all installed commands. */ | |
718e3744 | 285 | sort_node (); |
286 | ||
287 | /* Get configuration file. */ | |
320ec10a | 288 | vty_read_config (config_file, config_default); |
718e3744 | 289 | |
876b8be0 PJ |
290 | /* Start execution only if not in dry-run mode */ |
291 | if(dryrun) | |
292 | return(0); | |
293 | ||
718e3744 | 294 | /* Change to the daemon program. */ |
295 | if (daemon_mode) | |
296 | daemon (0, 0); | |
297 | ||
298 | /* Create VTY socket */ | |
4fc4e7ab | 299 | vty_serv_sock (vty_addr, vty_port, RIPNG_VTYSH_PATH); |
718e3744 | 300 | |
301 | /* Process id file create. */ | |
302 | pid_output (pid_file); | |
303 | ||
887c44a4 | 304 | /* Print banner. */ |
305 | zlog_notice ("RIPNGd %s starting: vty@%d", QUAGGA_VERSION, vty_port); | |
306 | ||
718e3744 | 307 | /* Fetch next active thread. */ |
308 | while (thread_fetch (master, &thread)) | |
309 | thread_call (&thread); | |
310 | ||
311 | /* Not reached. */ | |
e8e1946e | 312 | return 0; |
718e3744 | 313 | } |