]>
Commit | Line | Data |
---|---|---|
718e3744 | 1 | /* RIPd main routine. |
2 | * Copyright (C) 1997, 98 Kunihiro Ishiguro <kunihiro@zebra.org> | |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with GNU Zebra; see the file COPYING. If not, write to the Free | |
18 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
19 | * 02111-1307, USA. | |
20 | */ | |
21 | ||
22 | #include <zebra.h> | |
23 | ||
5e4fa164 | 24 | #include <lib/version.h> |
718e3744 | 25 | #include "getopt.h" |
26 | #include "thread.h" | |
27 | #include "command.h" | |
28 | #include "memory.h" | |
29 | #include "prefix.h" | |
30 | #include "filter.h" | |
31 | #include "keychain.h" | |
32 | #include "log.h" | |
edd7c245 | 33 | #include "privs.h" |
2d75d052 | 34 | #include "sigevent.h" |
718e3744 | 35 | |
36 | #include "ripd/ripd.h" | |
37 | ||
38 | /* ripd options. */ | |
39 | static struct option longopts[] = | |
40 | { | |
41 | { "daemon", no_argument, NULL, 'd'}, | |
42 | { "config_file", required_argument, NULL, 'f'}, | |
43 | { "pid_file", required_argument, NULL, 'i'}, | |
44 | { "help", no_argument, NULL, 'h'}, | |
45 | { "vty_addr", required_argument, NULL, 'A'}, | |
46 | { "vty_port", required_argument, NULL, 'P'}, | |
47 | { "retain", no_argument, NULL, 'r'}, | |
edd7c245 | 48 | { "user", required_argument, NULL, 'u'}, |
718e3744 | 49 | { "version", no_argument, NULL, 'v'}, |
50 | { 0 } | |
51 | }; | |
52 | ||
edd7c245 | 53 | /* ripd privileges */ |
54 | zebra_capabilities_t _caps_p [] = | |
55 | { | |
56 | ZCAP_RAW, | |
57 | ZCAP_BIND | |
58 | }; | |
59 | ||
60 | struct zebra_privs_t ripd_privs = | |
61 | { | |
d81fadfd | 62 | #if defined(QUAGGA_USER) |
63 | .user = QUAGGA_USER, | |
edd7c245 | 64 | #endif |
d81fadfd | 65 | #if defined QUAGGA_GROUP |
66 | .group = QUAGGA_GROUP, | |
67 | #endif | |
68 | #ifdef VTY_GROUP | |
69 | .vty_group = VTY_GROUP, | |
edd7c245 | 70 | #endif |
71 | .caps_p = _caps_p, | |
72 | .cap_num_p = 2, | |
73 | .cap_num_i = 0 | |
74 | }; | |
75 | ||
718e3744 | 76 | /* Configuration file and directory. */ |
718e3744 | 77 | char config_default[] = SYSCONFDIR RIPD_DEFAULT_CONFIG; |
78 | char *config_file = NULL; | |
79 | ||
80 | /* ripd program name */ | |
81 | ||
82 | /* Route retain mode flag. */ | |
83 | int retain_mode = 0; | |
84 | ||
85 | /* RIP VTY bind address. */ | |
86 | char *vty_addr = NULL; | |
87 | ||
88 | /* RIP VTY connection port. */ | |
89 | int vty_port = RIP_VTY_PORT; | |
90 | ||
91 | /* Master of threads. */ | |
92 | struct thread_master *master; | |
93 | ||
94 | /* Process ID saved for use by init system */ | |
8a676be3 | 95 | const char *pid_file = PATH_RIPD_PID; |
718e3744 | 96 | |
97 | /* Help information display. */ | |
98 | static void | |
99 | usage (char *progname, int status) | |
100 | { | |
101 | if (status != 0) | |
102 | fprintf (stderr, "Try `%s --help' for more information.\n", progname); | |
103 | else | |
104 | { | |
105 | printf ("Usage : %s [OPTION...]\n\ | |
106 | Daemon which manages RIP version 1 and 2.\n\n\ | |
107 | -d, --daemon Runs in daemon mode\n\ | |
108 | -f, --config_file Set configuration file name\n\ | |
109 | -i, --pid_file Set process identifier file name\n\ | |
110 | -A, --vty_addr Set vty's bind address\n\ | |
111 | -P, --vty_port Set vty's port number\n\ | |
112 | -r, --retain When program terminates, retain added route by ripd.\n\ | |
edd7c245 | 113 | -u, --user User and group to run as\n\ |
718e3744 | 114 | -v, --version Print program version\n\ |
115 | -h, --help Display this help and exit\n\ | |
116 | \n\ | |
117 | Report bugs to %s\n", progname, ZEBRA_BUG_ADDRESS); | |
118 | } | |
119 | ||
120 | exit (status); | |
121 | } | |
122 | \f | |
718e3744 | 123 | /* SIGHUP handler. */ |
124 | void | |
2d75d052 | 125 | sighup (void) |
718e3744 | 126 | { |
127 | zlog_info ("SIGHUP received"); | |
128 | rip_clean (); | |
129 | rip_reset (); | |
130 | zlog_info ("ripd restarting!"); | |
131 | ||
132 | /* Reload config file. */ | |
320ec10a | 133 | vty_read_config (config_file, config_default); |
718e3744 | 134 | |
135 | /* Create VTY's socket */ | |
136 | vty_serv_sock (vty_addr, vty_port, RIP_VTYSH_PATH); | |
137 | ||
138 | /* Try to return to normal operation. */ | |
139 | } | |
140 | ||
141 | /* SIGINT handler. */ | |
142 | void | |
2d75d052 | 143 | sigint (void) |
718e3744 | 144 | { |
145 | zlog (NULL, LOG_INFO, "Terminating on signal"); | |
146 | ||
147 | if (! retain_mode) | |
148 | rip_clean (); | |
149 | ||
150 | exit (0); | |
151 | } | |
152 | ||
153 | /* SIGUSR1 handler. */ | |
154 | void | |
2d75d052 | 155 | sigusr1 (void) |
718e3744 | 156 | { |
157 | zlog_rotate (NULL); | |
158 | } | |
159 | ||
2d75d052 | 160 | struct quagga_signal_t ripd_signals[] = |
718e3744 | 161 | { |
2d75d052 | 162 | { |
163 | .signal = SIGHUP, | |
164 | .handler = &sighup, | |
165 | }, | |
166 | { | |
167 | .signal = SIGUSR1, | |
168 | .handler = &sigusr1, | |
169 | }, | |
170 | { | |
171 | .signal = SIGINT, | |
8c903fbb | 172 | .handler = &sigint, |
2d75d052 | 173 | }, |
f571dab0 | 174 | { |
175 | .signal = SIGTERM, | |
176 | .handler = &sigint, | |
177 | }, | |
2d75d052 | 178 | }; |
718e3744 | 179 | \f |
180 | /* Main routine of ripd. */ | |
181 | int | |
182 | main (int argc, char **argv) | |
183 | { | |
184 | char *p; | |
185 | int daemon_mode = 0; | |
186 | char *progname; | |
187 | struct thread thread; | |
188 | ||
189 | /* Set umask before anything for security */ | |
190 | umask (0027); | |
191 | ||
192 | /* Get program name. */ | |
193 | progname = ((p = strrchr (argv[0], '/')) ? ++p : argv[0]); | |
194 | ||
195 | /* First of all we need logging init. */ | |
196 | zlog_default = openzlog (progname, ZLOG_NOLOG, ZLOG_RIP, | |
197 | LOG_CONS|LOG_NDELAY|LOG_PID, LOG_DAEMON); | |
198 | ||
199 | /* Command line option parse. */ | |
200 | while (1) | |
201 | { | |
202 | int opt; | |
203 | ||
96735eea | 204 | opt = getopt_long (argc, argv, "df:i:hA:P:u:rv", longopts, 0); |
718e3744 | 205 | |
206 | if (opt == EOF) | |
207 | break; | |
208 | ||
209 | switch (opt) | |
210 | { | |
211 | case 0: | |
212 | break; | |
213 | case 'd': | |
214 | daemon_mode = 1; | |
215 | break; | |
216 | case 'f': | |
217 | config_file = optarg; | |
218 | break; | |
219 | case 'A': | |
220 | vty_addr = optarg; | |
221 | break; | |
222 | case 'i': | |
223 | pid_file = optarg; | |
224 | break; | |
225 | case 'P': | |
4fc4e7ab | 226 | /* Deal with atoi() returning 0 on failure, and ripd not |
227 | listening on rip port... */ | |
228 | if (strcmp(optarg, "0") == 0) | |
229 | { | |
230 | vty_port = 0; | |
231 | break; | |
232 | } | |
233 | vty_port = atoi (optarg); | |
234 | vty_port = (vty_port ? vty_port : RIP_VTY_PORT); | |
718e3744 | 235 | break; |
236 | case 'r': | |
237 | retain_mode = 1; | |
238 | break; | |
edd7c245 | 239 | case 'u': |
240 | ripd_privs.group = ripd_privs.user = optarg; | |
241 | break; | |
718e3744 | 242 | case 'v': |
243 | print_version (progname); | |
244 | exit (0); | |
245 | break; | |
246 | case 'h': | |
247 | usage (progname, 0); | |
248 | break; | |
249 | default: | |
250 | usage (progname, 1); | |
251 | break; | |
252 | } | |
253 | } | |
254 | ||
255 | /* Prepare master thread. */ | |
256 | master = thread_master_create (); | |
257 | ||
258 | /* Library initialization. */ | |
edd7c245 | 259 | zprivs_init (&ripd_privs); |
2d75d052 | 260 | signal_init (master, Q_SIGC(ripd_signals), ripd_signals); |
718e3744 | 261 | cmd_init (1); |
b21b19c5 | 262 | vty_init (master); |
718e3744 | 263 | memory_init (); |
264 | keychain_init (); | |
265 | ||
266 | /* RIP related initialization. */ | |
267 | rip_init (); | |
268 | rip_if_init (); | |
269 | rip_zclient_init (); | |
270 | rip_peer_init (); | |
271 | ||
272 | /* Sort all installed commands. */ | |
273 | sort_node (); | |
274 | ||
275 | /* Get configuration file. */ | |
320ec10a | 276 | vty_read_config (config_file, config_default); |
718e3744 | 277 | |
278 | /* Change to the daemon program. */ | |
279 | if (daemon_mode) | |
280 | daemon (0, 0); | |
281 | ||
282 | /* Pid file create. */ | |
283 | pid_output (pid_file); | |
284 | ||
285 | /* Create VTY's socket */ | |
286 | vty_serv_sock (vty_addr, vty_port, RIP_VTYSH_PATH); | |
287 | ||
288 | /* Execute each thread. */ | |
289 | while (thread_fetch (master, &thread)) | |
290 | thread_call (&thread); | |
291 | ||
292 | /* Not reached. */ | |
293 | exit (0); | |
294 | } |