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 along
17 * with this program; see the file COPYING; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include <zebra.h>
22
23 #include <lib/version.h>
24 #include "getopt.h"
25 #include "thread.h"
26 #include "command.h"
27 #include "memory.h"
28 #include "prefix.h"
29 #include "filter.h"
30 #include "keychain.h"
31 #include "log.h"
32 #include "privs.h"
33 #include "sigevent.h"
34 #include "zclient.h"
35 #include "vrf.h"
36 #include "if_rmap.h"
37 #include "libfrr.h"
38 #include "routemap.h"
39
40 #include "ripd/ripd.h"
41 #include "ripd/rip_nb.h"
42 #include "ripd/rip_errors.h"
43
44 /* ripd options. */
45 static struct option longopts[] = {{0}};
46
47 /* ripd privileges */
48 zebra_capabilities_t _caps_p[] = {ZCAP_NET_RAW, ZCAP_BIND, ZCAP_SYS_ADMIN};
49
50 struct zebra_privs_t ripd_privs = {
51 #if defined(FRR_USER)
52 .user = FRR_USER,
53 #endif
54 #if defined FRR_GROUP
55 .group = FRR_GROUP,
56 #endif
57 #ifdef VTY_GROUP
58 .vty_group = VTY_GROUP,
59 #endif
60 .caps_p = _caps_p,
61 .cap_num_p = array_size(_caps_p),
62 .cap_num_i = 0};
63
64 /* Master of threads. */
65 struct thread_master *master;
66
67 static struct frr_daemon_info ripd_di;
68
69 /* SIGHUP handler. */
sighup(void)70 static void sighup(void)
71 {
72 zlog_info("SIGHUP received");
73
74 /* Reload config file. */
75 vty_read_config(NULL, ripd_di.config_file, config_default);
76 }
77
78 /* SIGINT handler. */
sigint(void)79 static void sigint(void)
80 {
81 zlog_notice("Terminating on signal");
82
83 rip_vrf_terminate();
84 if_rmap_terminate();
85 rip_zclient_stop();
86 frr_fini();
87
88 exit(0);
89 }
90
91 /* SIGUSR1 handler. */
sigusr1(void)92 static void sigusr1(void)
93 {
94 zlog_rotate();
95 }
96
97 static struct quagga_signal_t ripd_signals[] = {
98 {
99 .signal = SIGHUP,
100 .handler = &sighup,
101 },
102 {
103 .signal = SIGUSR1,
104 .handler = &sigusr1,
105 },
106 {
107 .signal = SIGINT,
108 .handler = &sigint,
109 },
110 {
111 .signal = SIGTERM,
112 .handler = &sigint,
113 },
114 };
115
116 static const struct frr_yang_module_info *const ripd_yang_modules[] = {
117 &frr_filter_info,
118 &frr_interface_info,
119 &frr_ripd_info,
120 &frr_route_map_info,
121 &frr_vrf_info,
122 };
123
124 FRR_DAEMON_INFO(ripd, RIP, .vty_port = RIP_VTY_PORT,
125
126 .proghelp = "Implementation of the RIP routing protocol.",
127
128 .signals = ripd_signals, .n_signals = array_size(ripd_signals),
129
130 .privs = &ripd_privs, .yang_modules = ripd_yang_modules,
131 .n_yang_modules = array_size(ripd_yang_modules), )
132
133 #define DEPRECATED_OPTIONS ""
134
135 /* Main routine of ripd. */
main(int argc,char ** argv)136 int main(int argc, char **argv)
137 {
138 frr_preinit(&ripd_di, argc, argv);
139
140 frr_opt_add("" DEPRECATED_OPTIONS, longopts, "");
141
142 /* Command line option parse. */
143 while (1) {
144 int opt;
145
146 opt = frr_getopt(argc, argv, NULL);
147
148 if (opt && opt < 128 && strchr(DEPRECATED_OPTIONS, opt)) {
149 fprintf(stderr,
150 "The -%c option no longer exists.\nPlease refer to the manual.\n",
151 opt);
152 continue;
153 }
154
155 if (opt == EOF)
156 break;
157
158 switch (opt) {
159 case 0:
160 break;
161 default:
162 frr_help_exit(1);
163 break;
164 }
165 }
166
167 /* Prepare master thread. */
168 master = frr_init();
169
170 /* Library initialization. */
171 rip_error_init();
172 keychain_init();
173 rip_vrf_init();
174
175 /* RIP related initialization. */
176 rip_init();
177 rip_if_init();
178 rip_cli_init();
179 rip_zclient_init(master);
180
181 frr_config_fork();
182 frr_run(master);
183
184 /* Not reached. */
185 return 0;
186 }
187