Line data Source code
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 along
18 : * with this program; see the file COPYING; if not, write to the Free Software
19 : * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 : */
21 :
22 : #include <zebra.h>
23 :
24 : #include <lib/version.h>
25 : #include "bfd.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 : #include "libfrr.h"
44 : #include "routemap.h"
45 :
46 : #include "ospfd/ospfd.h"
47 : #include "ospfd/ospf_interface.h"
48 : #include "ospfd/ospf_asbr.h"
49 : #include "ospfd/ospf_lsa.h"
50 : #include "ospfd/ospf_lsdb.h"
51 : #include "ospfd/ospf_neighbor.h"
52 : #include "ospfd/ospf_dump.h"
53 : #include "ospfd/ospf_route.h"
54 : #include "ospfd/ospf_zebra.h"
55 : #include "ospfd/ospf_vty.h"
56 : #include "ospfd/ospf_bfd.h"
57 : #include "ospfd/ospf_gr.h"
58 : #include "ospfd/ospf_errors.h"
59 : #include "ospfd/ospf_ldp_sync.h"
60 : #include "ospfd/ospf_routemap_nb.h"
61 :
62 : /* ospfd privileges */
63 : zebra_capabilities_t _caps_p[] = {ZCAP_NET_RAW, ZCAP_BIND, ZCAP_NET_ADMIN,
64 : ZCAP_SYS_ADMIN};
65 :
66 : struct zebra_privs_t ospfd_privs = {
67 : #if defined(FRR_USER) && defined(FRR_GROUP)
68 : .user = FRR_USER,
69 : .group = FRR_GROUP,
70 : #endif
71 : #if defined(VTY_GROUP)
72 : .vty_group = VTY_GROUP,
73 : #endif
74 : .caps_p = _caps_p,
75 : .cap_num_p = array_size(_caps_p),
76 : .cap_num_i = 0};
77 :
78 : /* OSPFd options. */
79 : const struct option longopts[] = {
80 : {"instance", required_argument, NULL, 'n'},
81 : {"apiserver", no_argument, NULL, 'a'},
82 : {0}
83 : };
84 :
85 : /* OSPFd program name */
86 :
87 : /* Master of threads. */
88 : struct thread_master *master;
89 :
90 : #ifdef SUPPORT_OSPF_API
91 : extern int ospf_apiserver_enable;
92 : #endif /* SUPPORT_OSPF_API */
93 :
94 : /* SIGHUP handler. */
95 0 : static void sighup(void)
96 : {
97 0 : zlog_info("SIGHUP received");
98 0 : }
99 :
100 : /* SIGINT / SIGTERM handler. */
101 4 : static void sigint(void)
102 : {
103 4 : zlog_notice("Terminating on signal");
104 4 : bfd_protocol_integration_set_shutdown(true);
105 4 : ospf_terminate();
106 0 : exit(0);
107 : }
108 :
109 : /* SIGUSR1 handler. */
110 0 : static void sigusr1(void)
111 : {
112 0 : zlog_rotate();
113 0 : }
114 :
115 : struct frr_signal_t ospf_signals[] = {
116 : {
117 : .signal = SIGHUP,
118 : .handler = &sighup,
119 : },
120 : {
121 : .signal = SIGUSR1,
122 : .handler = &sigusr1,
123 : },
124 : {
125 : .signal = SIGINT,
126 : .handler = &sigint,
127 : },
128 : {
129 : .signal = SIGTERM,
130 : .handler = &sigint,
131 : },
132 : };
133 :
134 : static const struct frr_yang_module_info *const ospfd_yang_modules[] = {
135 : &frr_filter_info,
136 : &frr_interface_info,
137 : &frr_route_map_info,
138 : &frr_vrf_info,
139 : &frr_ospf_route_map_info,
140 : };
141 :
142 4 : FRR_DAEMON_INFO(ospfd, OSPF, .vty_port = OSPF_VTY_PORT,
143 :
144 : .proghelp = "Implementation of the OSPFv2 routing protocol.",
145 :
146 : .signals = ospf_signals, .n_signals = array_size(ospf_signals),
147 :
148 : .privs = &ospfd_privs, .yang_modules = ospfd_yang_modules,
149 : .n_yang_modules = array_size(ospfd_yang_modules),
150 : );
151 :
152 : /* OSPFd main routine. */
153 4 : int main(int argc, char **argv)
154 : {
155 : #ifdef SUPPORT_OSPF_API
156 : /* OSPF apiserver is disabled by default. */
157 4 : ospf_apiserver_enable = 0;
158 : #endif /* SUPPORT_OSPF_API */
159 :
160 4 : frr_preinit(&ospfd_di, argc, argv);
161 4 : frr_opt_add("n:a", longopts,
162 : " -n, --instance Set the instance id\n"
163 : " -a, --apiserver Enable OSPF apiserver\n");
164 :
165 4 : while (1) {
166 4 : int opt;
167 :
168 4 : opt = frr_getopt(argc, argv, NULL);
169 :
170 4 : if (opt == EOF)
171 : break;
172 :
173 0 : switch (opt) {
174 0 : case 'n':
175 0 : ospfd_di.instance = ospf_instance = atoi(optarg);
176 0 : if (ospf_instance < 1)
177 0 : exit(0);
178 : break;
179 : case 0:
180 : break;
181 : #ifdef SUPPORT_OSPF_API
182 0 : case 'a':
183 0 : ospf_apiserver_enable = 1;
184 0 : break;
185 : #endif /* SUPPORT_OSPF_API */
186 0 : default:
187 0 : frr_help_exit(1);
188 : }
189 : }
190 :
191 : /* Invoked by a priviledged user? -- endo. */
192 4 : if (geteuid() != 0) {
193 0 : errno = EPERM;
194 0 : perror(ospfd_di.progname);
195 0 : exit(1);
196 : }
197 :
198 : /* OSPF master init. */
199 4 : ospf_master_init(frr_init());
200 :
201 : /* Initializations. */
202 4 : master = om->master;
203 :
204 : /* Library inits. */
205 4 : ospf_debug_init();
206 4 : ospf_vrf_init();
207 :
208 4 : access_list_init();
209 4 : prefix_list_init();
210 :
211 : /* OSPFd inits. */
212 4 : ospf_if_init();
213 4 : ospf_zebra_init(master, ospf_instance);
214 :
215 : /* OSPF vty inits. */
216 4 : ospf_vty_init();
217 4 : ospf_vty_show_init();
218 4 : ospf_vty_clear_init();
219 :
220 : /* OSPF BFD init */
221 4 : ospf_bfd_init(master);
222 :
223 : /* OSPF LDP IGP Sync init */
224 4 : ospf_ldp_sync_init();
225 :
226 4 : ospf_route_map_init();
227 4 : ospf_opaque_init();
228 4 : ospf_gr_init();
229 4 : ospf_gr_helper_init();
230 :
231 : /* OSPF errors init */
232 4 : ospf_error_init();
233 :
234 4 : frr_config_fork();
235 4 : frr_run(master);
236 :
237 : /* Not reached. */
238 0 : return 0;
239 : }
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