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/* main routine.
* Copyright (C) 1997, 98 Kunihiro Ishiguro
*
* GNU Zebra is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* GNU Zebra 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 GNU Zebra; see the file COPYING. If not, write to the Free
* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#include <zebra.h>
#include <lib/version.h>
#include "getopt.h"
#include "command.h"
#include "thread.h"
#include "filter.h"
#include "memory.h"
#include "zebra_memory.h"
#include "memory_vty.h"
#include "prefix.h"
#include "log.h"
#include "privs.h"
#include "sigevent.h"
#include "vrf.h"
#include "zebra/rib.h"
#include "zebra/zebra_ns.h"
#include "zebra/zserv.h"
#include "zebra/zebra_vrf.h"
#include "zebra/debug.h"
#include "zebra/router-id.h"
#include "zebra/interface.h"
/* Zebra instance */
struct zebra_t zebrad =
{
.rtm_table_default = 0,
};
/* process id. */
pid_t pid;
/* Allow non-quagga entities to delete quagga routes */
int allow_delete = 0;
/* zebra_rib's workqueue hold time. Private export for use by test code only */
extern int rib_process_hold_time;
/* Pacify zclient.o in libzebra, which expects this variable. */
struct thread_master *master;
/* Command line options. */
struct option longopts[] =
{
{ "batch", no_argument, NULL, 'b'},
{ "daemon", no_argument, NULL, 'd'},
{ "allow_delete", no_argument, NULL, 'a'},
{ "config_file", required_argument, NULL, 'f'},
{ "help", no_argument, NULL, 'h'},
{ "vty_addr", required_argument, NULL, 'A'},
{ "vty_port", required_argument, NULL, 'P'},
{ "version", no_argument, NULL, 'v'},
{ "rib_hold", required_argument, NULL, 'r'},
{ 0 }
};
zebra_capabilities_t _caps_p [] =
{
ZCAP_NET_ADMIN,
ZCAP_SYS_ADMIN,
ZCAP_NET_RAW,
};
/* Default configuration file path. */
char config_default[] = SYSCONFDIR DEFAULT_CONFIG_FILE;
/* Process ID saved for use by init system */
const char *pid_file = PATH_ZEBRA_PID;
/* Help information display. */
static void
usage (char *progname, int status)
{
if (status != 0)
fprintf (stderr, "Try `%s --help' for more information.\n", progname);
else
{
printf ("Usage : %s [OPTION...]\n\n"\
"Daemon which manages kernel routing table management and "\
"redistribution between different routing protocols.\n\n"\
"-b, --batch Runs in batch mode\n"\
"-d, --daemon Runs in daemon mode\n"\
"-a, --allow_delete Allow other processes to delete Quagga Routes\n" \
"-f, --config_file Set configuration file name\n"\
"-A, --vty_addr Set vty's bind address\n"\
"-P, --vty_port Set vty's port number\n"\
"-r, --rib_hold Set rib-queue hold time\n"\
"-v, --version Print program version\n"\
"-h, --help Display this help and exit\n"\
"\n"\
"Report bugs to %s\n", progname, ZEBRA_BUG_ADDRESS);
}
exit (status);
}
static ifindex_t test_ifindex = 0;
/* testrib commands */
DEFUN (test_interface_state,
test_interface_state_cmd,
"state (up|down)",
"configure interface\n"
"up\n"
"down\n")
{
struct interface *ifp;
if (argc < 1)
return CMD_WARNING;
ifp = vty->index;
if (ifp->ifindex == IFINDEX_INTERNAL)
{
ifp->ifindex = ++test_ifindex;
ifp->mtu = 1500;
ifp->flags = IFF_BROADCAST|IFF_MULTICAST;
}
switch (argv[0]->arg[0])
{
case 'u':
SET_FLAG (ifp->flags, IFF_UP);
if_add_update (ifp);
printf ("up\n");
break;
case 'd':
UNSET_FLAG (ifp->flags, IFF_UP);
if_delete_update (ifp);
printf ("down\n");
break;
default:
return CMD_WARNING;
}
return CMD_SUCCESS;
}
static void
test_cmd_init (void)
{
install_element (INTERFACE_NODE, &test_interface_state_cmd);
}
/* SIGHUP handler. */
static void
sighup (void)
{
zlog_info ("SIGHUP received");
/* Reload of config file. */
;
}
/* SIGINT handler. */
static void
sigint (void)
{
zlog_notice ("Terminating on signal");
exit (0);
}
/* SIGUSR1 handler. */
static void
sigusr1 (void)
{
zlog_rotate (NULL);
}
struct quagga_signal_t zebra_signals[] =
{
{
.signal = SIGHUP,
.handler = &sighup,
},
{
.signal = SIGUSR1,
.handler = &sigusr1,
},
{
.signal = SIGINT,
.handler = &sigint,
},
{
.signal = SIGTERM,
.handler = &sigint,
},
};
/* Main startup routine. */
int
main (int argc, char **argv)
{
char *p;
char *vty_addr = NULL;
int vty_port = 0;
int batch_mode = 0;
int daemon_mode = 0;
char *config_file = NULL;
char *progname;
struct thread thread;
/* Set umask before anything for security */
umask (0027);
/* preserve my name */
progname = ((p = strrchr (argv[0], '/')) ? ++p : argv[0]);
zlog_default = openzlog (progname, ZLOG_ZEBRA, 0,
LOG_CONS|LOG_NDELAY|LOG_PID, LOG_DAEMON);
while (1)
{
int opt;
opt = getopt_long (argc, argv, "bdaf:hA:P:r:v", longopts, 0);
if (opt == EOF)
break;
switch (opt)
{
case 0:
break;
case 'b':
batch_mode = 1;
case 'd':
daemon_mode = 1;
break;
case 'a':
allow_delete =1;
break;
case 'f':
config_file = optarg;
break;
case 'A':
vty_addr = optarg;
break;
case 'P':
/* Deal with atoi() returning 0 on failure, and zebra not
listening on zebra port... */
if (strcmp(optarg, "0") == 0)
{
vty_port = 0;
break;
}
vty_port = atoi (optarg);
break;
case 'r':
rib_process_hold_time = atoi(optarg);
break;
case 'v':
print_version (progname);
exit (0);
break;
case 'h':
usage (progname, 0);
break;
default:
usage (progname, 1);
break;
}
}
/* port and conf file mandatory */
if (!vty_port || !config_file)
{
fprintf (stderr, "Error: --vty_port and --config_file arguments"
" are both required\n");
usage (progname, 1);
}
/* Make master thread emulator. */
zebrad.master = thread_master_create ();
/* Vty related initialize. */
signal_init (zebrad.master, array_size(zebra_signals), zebra_signals);
cmd_init (1);
vty_init (zebrad.master);
memory_init ();
zebra_debug_init ();
zebra_if_init ();
test_cmd_init ();
/* Zebra related initialize. */
rib_init ();
access_list_init ();
/* Make kernel routing socket. */
zebra_vrf_init ();
zebra_vty_init();
/* Configuration file read*/
vty_read_config (config_file, config_default);
/* Clean up rib. */
rib_weed_tables ();
/* Exit when zebra is working in batch mode. */
if (batch_mode)
exit (0);
/* Daemonize. */
if (daemon_mode && daemon (0, 0) < 0)
{
perror("daemon start failed");
exit (1);
}
/* Needed for BSD routing socket. */
pid = getpid ();
/* Make vty server socket. */
vty_serv_sock (vty_addr, vty_port, "/tmp/test_zebra");
/* Print banner. */
zlog_notice ("Zebra %s starting: vty@%d", QUAGGA_VERSION, vty_port);
while (thread_fetch (zebrad.master, &thread))
thread_call (&thread);
/* Not reached... */
return 0;
}
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