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718e3744 1/*
2 * Copyright (C) 1999 Yasuhiro Ohara
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 *
896014f4
DL
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
718e3744 19 */
20
21#include <zebra.h>
3b4cd3a9 22#include <lib/version.h>
c3c0ac83 23#include <stdlib.h>
508e53e2 24
718e3744 25#include "getopt.h"
26#include "thread.h"
27#include "log.h"
718e3744 28#include "command.h"
29#include "vty.h"
30#include "memory.h"
fc7948fa 31#include "memory_vty.h"
508e53e2 32#include "if.h"
33#include "filter.h"
34#include "prefix.h"
35#include "plist.h"
edd7c245 36#include "privs.h"
e42f5a37 37#include "sigevent.h"
87362ceb 38#include "zclient.h"
6a69b354 39#include "vrf.h"
567b877d 40#include "bfd.h"
4f04a76b 41#include "libfrr.h"
718e3744 42
43#include "ospf6d.h"
87362ceb
DO
44#include "ospf6_top.h"
45#include "ospf6_message.h"
46#include "ospf6_asbr.h"
47#include "ospf6_lsa.h"
d9628728
CF
48#include "ospf6_interface.h"
49#include "ospf6_zebra.h"
718e3744 50
51/* Default configuration file name for ospf6d. */
52#define OSPF6_DEFAULT_CONFIG "ospf6d.conf"
508e53e2 53
718e3744 54/* Default port values. */
55#define OSPF6_VTY_PORT 2606
56
edd7c245 57/* ospf6d privileges */
d62a17ae 58zebra_capabilities_t _caps_p[] = {ZCAP_NET_RAW, ZCAP_BIND};
edd7c245 59
d62a17ae 60struct zebra_privs_t ospf6d_privs = {
b2f36157 61#if defined(FRR_USER)
d62a17ae 62 .user = FRR_USER,
edd7c245 63#endif
b2f36157 64#if defined FRR_GROUP
d62a17ae 65 .group = FRR_GROUP,
d81fadfd 66#endif
67#ifdef VTY_GROUP
d62a17ae 68 .vty_group = VTY_GROUP,
edd7c245 69#endif
d62a17ae 70 .caps_p = _caps_p,
71 .cap_num_p = 2,
72 .cap_num_i = 0};
edd7c245 73
718e3744 74/* ospf6d options, we use GNU getopt library. */
d62a17ae 75struct option longopts[] = {{0}};
718e3744 76
718e3744 77/* Master of threads. */
78struct thread_master *master;
79
d62a17ae 80static void __attribute__((noreturn)) ospf6_exit(int status)
ae2254aa 81{
f4e14fdb 82 struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT);
d62a17ae 83 struct interface *ifp;
ae2254aa 84
03951374
DL
85 frr_early_fini();
86
d62a17ae 87 if (ospf6)
88 ospf6_delete(ospf6);
ae2254aa 89
d62a17ae 90 bfd_gbl_exit();
567b877d 91
451fda4f 92 FOR_ALL_INTERFACES (vrf, ifp)
d62a17ae 93 if (ifp->info != NULL)
94 ospf6_interface_delete(ifp->info);
d9628728 95
d62a17ae 96 ospf6_message_terminate();
97 ospf6_asbr_terminate();
98 ospf6_lsa_terminate();
ae2254aa 99
856ae1eb
CS
100 /* reverse access_list_init */
101 access_list_reset();
102
103 /* reverse prefix_list_init */
104 prefix_list_add_hook(NULL);
105 prefix_list_delete_hook(NULL);
106 prefix_list_reset();
107
d62a17ae 108 vrf_terminate();
ae2254aa 109
d62a17ae 110 if (zclient) {
111 zclient_stop(zclient);
112 zclient_free(zclient);
113 }
ae2254aa 114
03951374 115 frr_fini();
d62a17ae 116 exit(status);
ae2254aa
TG
117}
118
718e3744 119/* SIGHUP handler. */
d62a17ae 120static void sighup(void)
718e3744 121{
d62a17ae 122 zlog_info("SIGHUP received");
718e3744 123}
124
125/* SIGINT handler. */
d62a17ae 126static void sigint(void)
718e3744 127{
d62a17ae 128 zlog_notice("Terminating on signal SIGINT");
129 ospf6_exit(0);
718e3744 130}
131
132/* SIGTERM handler. */
d62a17ae 133static void sigterm(void)
718e3744 134{
d62a17ae 135 zlog_notice("Terminating on signal SIGTERM");
d62a17ae 136 ospf6_exit(0);
718e3744 137}
138
139/* SIGUSR1 handler. */
d62a17ae 140static void sigusr1(void)
718e3744 141{
d62a17ae 142 zlog_info("SIGUSR1 received");
143 zlog_rotate();
718e3744 144}
145
d62a17ae 146struct quagga_signal_t ospf6_signals[] = {
147 {
148 .signal = SIGHUP,
149 .handler = &sighup,
150 },
151 {
152 .signal = SIGINT,
153 .handler = &sigint,
154 },
155 {
156 .signal = SIGTERM,
157 .handler = &sigterm,
158 },
159 {
160 .signal = SIGUSR1,
161 .handler = &sigusr1,
162 },
e42f5a37 163};
508e53e2 164
d62a17ae 165FRR_DAEMON_INFO(ospf6d, OSPF6, .vty_port = OSPF6_VTY_PORT,
4f04a76b 166
d62a17ae 167 .proghelp = "Implementation of the OSPFv3 routing protocol.",
4f04a76b 168
d62a17ae 169 .signals = ospf6_signals,
170 .n_signals = array_size(ospf6_signals),
4f04a76b 171
d62a17ae 172 .privs = &ospf6d_privs, )
4f04a76b 173
508e53e2 174/* Main routine of ospf6d. Treatment of argument and starting ospf finite
718e3744 175 state machine is handled here. */
d62a17ae 176int main(int argc, char *argv[], char *envp[])
718e3744 177{
d62a17ae 178 int opt;
179
180 frr_preinit(&ospf6d_di, argc, argv);
181 frr_opt_add("", longopts, "");
718e3744 182
d62a17ae 183 /* Command line argument treatment. */
184 while (1) {
185 opt = frr_getopt(argc, argv, NULL);
508e53e2 186
d62a17ae 187 if (opt == EOF)
188 break;
189
190 switch (opt) {
191 case 0:
192 break;
193 default:
194 frr_help_exit(1);
195 break;
196 }
197 }
198
199 if (geteuid() != 0) {
200 errno = EPERM;
201 perror(ospf6d_di.progname);
202 exit(1);
203 }
204
78c6ba61
CS
205 /* OSPF6 master init. */
206 ospf6_master_init();
207
d62a17ae 208 /* thread master */
209 master = frr_init();
210
ecbc5a37 211 vrf_init(NULL, NULL, NULL, NULL, NULL);
d62a17ae 212 access_list_init();
213 prefix_list_init();
214
215 /* initialize ospf6 */
216 ospf6_init();
217
218 frr_config_fork();
219 frr_run(master);
220
221 /* Not reached. */
222 ospf6_exit(0);
223}