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eb5d44eb 1/*
2 * IS-IS Rout(e)ing protocol - isis_main.c
3 *
4 * Copyright (C) 2001,2002 Sampo Saaristo
d62a17ae 5 * Tampere University of Technology
eb5d44eb 6 * Institute of Communications Engineering
7 *
d62a17ae 8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public Licenseas published by the Free
10 * Software Foundation; either version 2 of the License, or (at your option)
eb5d44eb 11 * any later version.
12 *
d62a17ae 13 * This program is distributed in the hope that it will be useful,but WITHOUT
14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
eb5d44eb 16 * more details.
896014f4
DL
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with this program; see the file COPYING; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
eb5d44eb 21 */
22
eb5d44eb 23#include <zebra.h>
eb5d44eb 24
25#include "getopt.h"
26#include "thread.h"
27#include "log.h"
5e4fa164 28#include <lib/version.h>
eb5d44eb 29#include "command.h"
30#include "vty.h"
31#include "memory.h"
fc7948fa 32#include "memory_vty.h"
eb5d44eb 33#include "stream.h"
34#include "if.h"
9e867fe6 35#include "privs.h"
2d75d052 36#include "sigevent.h"
c729c650 37#include "filter.h"
f3ccedaa 38#include "plist.h"
48d8bea8 39#include "zclient.h"
6a69b354 40#include "vrf.h"
676a4ea3 41#include "qobj.h"
4f04a76b 42#include "libfrr.h"
eb5d44eb 43
eb5d44eb 44#include "isisd/isis_constants.h"
45#include "isisd/isis_common.h"
46#include "isisd/isis_flags.h"
47#include "isisd/isis_circuit.h"
48#include "isisd/isisd.h"
49#include "isisd/isis_dynhn.h"
3f045a08
JB
50#include "isisd/isis_spf.h"
51#include "isisd/isis_route.h"
f3ccedaa 52#include "isisd/isis_routemap.h"
3f045a08 53#include "isisd/isis_zebra.h"
f8c06e2c 54#include "isisd/isis_te.h"
54ece698 55#include "isisd/isis_errors.h"
52df8228 56#include "isisd/isis_bfd.h"
a5b5e946 57#include "isisd/isis_lsp.h"
d56afe53 58#include "isisd/isis_mt.h"
2cd971af 59#include "isisd/fabricd.h"
2a1c520e 60#include "isisd/isis_nb.h"
eb5d44eb 61
62/* Default configuration file name */
63#define ISISD_DEFAULT_CONFIG "isisd.conf"
64/* Default vty port */
fc58e874 65#define ISISD_VTY_PORT 2608
7c0cbd0e 66#define FABRICD_VTY_PORT 2618
eb5d44eb 67
9e867fe6 68/* isisd privileges */
d62a17ae 69zebra_capabilities_t _caps_p[] = {ZCAP_NET_RAW, ZCAP_BIND};
9e867fe6 70
f390d2c7 71struct zebra_privs_t isisd_privs = {
b2f36157 72#if defined(FRR_USER)
d62a17ae 73 .user = FRR_USER,
9e867fe6 74#endif
b2f36157 75#if defined FRR_GROUP
d62a17ae 76 .group = FRR_GROUP,
9e867fe6 77#endif
78#ifdef VTY_GROUP
d62a17ae 79 .vty_group = VTY_GROUP,
9e867fe6 80#endif
d62a17ae 81 .caps_p = _caps_p,
97b5d752 82 .cap_num_p = array_size(_caps_p),
d62a17ae 83 .cap_num_i = 0};
9e867fe6 84
eb5d44eb 85/* isisd options */
d62a17ae 86struct option longopts[] = {{0}};
eb5d44eb 87
eb5d44eb 88/* Master of threads. */
89struct thread_master *master;
90
41b36e90
PJ
91/*
92 * Prototypes.
93 */
41b36e90
PJ
94void sighup(void);
95void sigint(void);
96void sigterm(void);
97void sigusr1(void);
98
99
d62a17ae 100static __attribute__((__noreturn__)) void terminate(int i)
eb5d44eb 101{
d62a17ae 102 isis_zebra_stop();
103 exit(i);
eb5d44eb 104}
105
106/*
107 * Signal handlers
108 */
98cbd0f2 109#ifdef FABRICD
d62a17ae 110void sighup(void)
eb5d44eb 111{
98cbd0f2 112 zlog_notice("SIGHUP/reload is not implemented for fabricd");
d62a17ae 113 return;
eb5d44eb 114}
98cbd0f2
EDP
115#else
116static struct frr_daemon_info isisd_di;
117void sighup(void)
118{
119 zlog_info("SIGHUP received");
120
121 /* Reload config file. */
122 vty_read_config(NULL, isisd_di.config_file, config_default);
123}
124
125#endif
eb5d44eb 126
d62a17ae 127__attribute__((__noreturn__)) void sigint(void)
eb5d44eb 128{
d62a17ae 129 zlog_notice("Terminating on signal SIGINT");
130 terminate(0);
eb5d44eb 131}
132
d62a17ae 133__attribute__((__noreturn__)) void sigterm(void)
eb5d44eb 134{
d62a17ae 135 zlog_notice("Terminating on signal SIGTERM");
136 terminate(0);
eb5d44eb 137}
138
d62a17ae 139void sigusr1(void)
eb5d44eb 140{
d62a17ae 141 zlog_debug("SIGUSR1 received");
142 zlog_rotate();
eb5d44eb 143}
144
d62a17ae 145struct quagga_signal_t isisd_signals[] = {
146 {
147 .signal = SIGHUP,
148 .handler = &sighup,
149 },
150 {
151 .signal = SIGUSR1,
152 .handler = &sigusr1,
153 },
154 {
155 .signal = SIGINT,
156 .handler = &sigint,
157 },
158 {
159 .signal = SIGTERM,
160 .handler = &sigterm,
161 },
2d75d052 162};
eb5d44eb 163
20bd27e2 164
0d8c7a26 165static const struct frr_yang_module_info *const isisd_yang_modules[] = {
a4bed468 166 &frr_interface_info,
20bd27e2
EDP
167#ifndef FABRICD
168 &frr_isisd_info,
169#endif /* ifndef FABRICD */
8fcdd0d6
RW
170};
171
7c0cbd0e
CF
172#ifdef FABRICD
173FRR_DAEMON_INFO(fabricd, OPEN_FABRIC, .vty_port = FABRICD_VTY_PORT,
174
175 .proghelp = "Implementation of the OpenFabric routing protocol.",
176#else
d62a17ae 177FRR_DAEMON_INFO(isisd, ISIS, .vty_port = ISISD_VTY_PORT,
4f04a76b 178
d62a17ae 179 .proghelp = "Implementation of the IS-IS routing protocol.",
7c0cbd0e 180#endif
d62a17ae 181 .copyright =
182 "Copyright (c) 2001-2002 Sampo Saaristo,"
183 " Ofer Wald and Hannes Gredler",
4f04a76b 184
d62a17ae 185 .signals = isisd_signals,
186 .n_signals = array_size(isisd_signals),
4f04a76b 187
8fcdd0d6
RW
188 .privs = &isisd_privs, .yang_modules = isisd_yang_modules,
189 .n_yang_modules = array_size(isisd_yang_modules), )
4f04a76b 190
eb5d44eb 191/*
192 * Main routine of isisd. Parse arguments and handle IS-IS state machine.
193 */
d62a17ae 194int main(int argc, char **argv, char **envp)
eb5d44eb 195{
d62a17ae 196 int opt;
eb5d44eb 197
7c0cbd0e
CF
198#ifdef FABRICD
199 frr_preinit(&fabricd_di, argc, argv);
200#else
d62a17ae 201 frr_preinit(&isisd_di, argc, argv);
7c0cbd0e 202#endif
d62a17ae 203 frr_opt_add("", longopts, "");
4f04a76b 204
d62a17ae 205 /* Command line argument treatment. */
206 while (1) {
207 opt = frr_getopt(argc, argv, NULL);
f390d2c7 208
d62a17ae 209 if (opt == EOF)
210 break;
f390d2c7 211
d62a17ae 212 switch (opt) {
213 case 0:
214 break;
215 default:
216 frr_help_exit(1);
217 break;
218 }
f390d2c7 219 }
d62a17ae 220
d62a17ae 221 /* thread master */
222 master = frr_init();
223
224 /*
225 * initializations
226 */
54ece698 227 isis_error_init();
d62a17ae 228 access_list_init();
ecbc5a37 229 vrf_init(NULL, NULL, NULL, NULL, NULL);
d62a17ae 230 prefix_list_init();
231 isis_init();
232 isis_circuit_init();
f2971ce3
RZ
233#ifdef FABRICD
234 isis_vty_daemon_init();
235#endif /* FABRICD */
20bd27e2
EDP
236#ifndef FABRICD
237 isis_cli_init();
238#endif /* ifdef FABRICD */
d62a17ae 239 isis_spf_cmds_init();
240 isis_redist_init();
241 isis_route_map_init();
242 isis_mpls_te_init();
a5b5e946 243 lsp_init();
d56afe53 244 mt_init();
d62a17ae 245
246 /* create the global 'isis' instance */
260fcb95 247 isis_new(1, VRF_DEFAULT);
d62a17ae 248
249 isis_zebra_init(master);
52df8228 250 isis_bfd_init();
2cd971af 251 fabricd_init();
d62a17ae 252
253 frr_config_fork();
254 frr_run(master);
255
256 /* Not reached. */
257 exit(0);
eb5d44eb 258}