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/*
* IS-IS Rout(e)ing protocol - isis_main.c
*
* Copyright (C) 2001,2002 Sampo Saaristo
* Tampere University of Technology
* Institute of Communications Engineering
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public Licenseas published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <zebra.h>
#include "getopt.h"
#include "thread.h"
#include "log.h"
#include <lib/version.h>
#include "command.h"
#include "vty.h"
#include "memory.h"
#include "memory_vty.h"
#include "stream.h"
#include "if.h"
#include "privs.h"
#include "sigevent.h"
#include "filter.h"
#include "plist.h"
#include "zclient.h"
#include "vrf.h"
#include "qobj.h"
#include "libfrr.h"
#include "isisd/dict.h"
#include "isisd/isis_constants.h"
#include "isisd/isis_common.h"
#include "isisd/isis_flags.h"
#include "isisd/isis_circuit.h"
#include "isisd/isisd.h"
#include "isisd/isis_dynhn.h"
#include "isisd/isis_spf.h"
#include "isisd/isis_route.h"
#include "isisd/isis_routemap.h"
#include "isisd/isis_zebra.h"
#include "isisd/isis_tlv.h"
#include "isisd/isis_te.h"
/* Default configuration file name */
#define ISISD_DEFAULT_CONFIG "isisd.conf"
/* Default vty port */
#define ISISD_VTY_PORT 2608
/* isisd privileges */
zebra_capabilities_t _caps_p[] = {ZCAP_NET_RAW, ZCAP_BIND};
struct zebra_privs_t isisd_privs = {
#if defined(FRR_USER)
.user = FRR_USER,
#endif
#if defined FRR_GROUP
.group = FRR_GROUP,
#endif
#ifdef VTY_GROUP
.vty_group = VTY_GROUP,
#endif
.caps_p = _caps_p,
.cap_num_p = sizeof(_caps_p) / sizeof(*_caps_p),
.cap_num_i = 0};
/* isisd options */
struct option longopts[] = {{0}};
/* Master of threads. */
struct thread_master *master;
/*
* Prototypes.
*/
void sighup(void);
void sigint(void);
void sigterm(void);
void sigusr1(void);
static __attribute__((__noreturn__)) void terminate(int i)
{
exit(i);
}
/*
* Signal handlers
*/
void sighup(void)
{
zlog_err("SIGHUP/reload is not implemented for isisd");
return;
}
__attribute__((__noreturn__)) void sigint(void)
{
zlog_notice("Terminating on signal SIGINT");
terminate(0);
}
__attribute__((__noreturn__)) void sigterm(void)
{
zlog_notice("Terminating on signal SIGTERM");
terminate(0);
}
void sigusr1(void)
{
zlog_debug("SIGUSR1 received");
zlog_rotate();
}
struct quagga_signal_t isisd_signals[] = {
{
.signal = SIGHUP,
.handler = &sighup,
},
{
.signal = SIGUSR1,
.handler = &sigusr1,
},
{
.signal = SIGINT,
.handler = &sigint,
},
{
.signal = SIGTERM,
.handler = &sigterm,
},
};
FRR_DAEMON_INFO(isisd, ISIS, .vty_port = ISISD_VTY_PORT,
.proghelp = "Implementation of the IS-IS routing protocol.",
.copyright =
"Copyright (c) 2001-2002 Sampo Saaristo,"
" Ofer Wald and Hannes Gredler",
.signals = isisd_signals,
.n_signals = array_size(isisd_signals),
.privs = &isisd_privs, )
/*
* Main routine of isisd. Parse arguments and handle IS-IS state machine.
*/
int main(int argc, char **argv, char **envp)
{
int opt;
frr_preinit(&isisd_di, argc, argv);
frr_opt_add("", longopts, "");
/* Command line argument treatment. */
while (1) {
opt = frr_getopt(argc, argv, NULL);
if (opt == EOF)
break;
switch (opt) {
case 0:
break;
default:
frr_help_exit(1);
break;
}
}
vty_config_lockless();
/* thread master */
master = frr_init();
/*
* initializations
*/
access_list_init();
vrf_init();
prefix_list_init();
isis_init();
isis_circuit_init();
isis_spf_cmds_init();
isis_redist_init();
isis_route_map_init();
isis_mpls_te_init();
/* create the global 'isis' instance */
isis_new(1);
isis_zebra_init(master);
frr_config_fork();
frr_run(master);
/* Not reached. */
exit(0);
}
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