* IS-IS Rout(e)ing protocol - isis_main.c
*
* Copyright (C) 2001,2002 Sampo Saaristo
- * Tampere University of Technology
+ * 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)
+ * 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
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; see the file COPYING; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <zebra.h>
#include "zclient.h"
#include "vrf.h"
#include "qobj.h"
+#include "libfrr.h"
#include "isisd/dict.h"
#include "isisd/isis_constants.h"
#define ISISD_VTY_PORT 2608
/* isisd privileges */
-zebra_capabilities_t _caps_p[] = {
- ZCAP_NET_RAW,
- ZCAP_BIND
-};
+zebra_capabilities_t _caps_p[] = {ZCAP_NET_RAW, ZCAP_BIND};
struct zebra_privs_t isisd_privs = {
#if defined(FRR_USER)
- .user = FRR_USER,
+ .user = FRR_USER,
#endif
#if defined FRR_GROUP
- .group = FRR_GROUP,
+ .group = FRR_GROUP,
#endif
#ifdef VTY_GROUP
- .vty_group = VTY_GROUP,
+ .vty_group = VTY_GROUP,
#endif
- .caps_p = _caps_p,
- .cap_num_p = sizeof (_caps_p) / sizeof (*_caps_p),
- .cap_num_i = 0
-};
+ .caps_p = _caps_p,
+ .cap_num_p = sizeof(_caps_p) / sizeof(*_caps_p),
+ .cap_num_i = 0};
/* isisd options */
-struct option longopts[] = {
- {"daemon", no_argument, NULL, 'd'},
- {"config_file", required_argument, NULL, 'f'},
- {"pid_file", required_argument, NULL, 'i'},
- {"socket", required_argument, NULL, 'z'},
- {"vty_addr", required_argument, NULL, 'A'},
- {"vty_port", required_argument, NULL, 'P'},
- {"user", required_argument, NULL, 'u'},
- {"group", required_argument, NULL, 'g'},
- {"version", no_argument, NULL, 'v'},
- {"dryrun", no_argument, NULL, 'C'},
- {"help", no_argument, NULL, 'h'},
- {0}
-};
-
-/* Configuration file and directory. */
-char config_default[] = SYSCONFDIR ISISD_DEFAULT_CONFIG;
-char *config_file = NULL;
-
-/* isisd program name. */
-char *progname;
-
-int daemon_mode = 0;
+struct option longopts[] = {{0}};
/* Master of threads. */
struct thread_master *master;
-/* Process ID saved for use by init system */
-const char *pid_file = PATH_ISISD_PID;
-
-/* for reload */
-char _cwd[MAXPATHLEN];
-char _progpath[MAXPATHLEN];
-int _argc;
-char **_argv;
-char **_envp;
-
/*
* Prototypes.
*/
-void reload(void);
void sighup(void);
void sigint(void);
void sigterm(void);
void sigusr1(void);
-/* Help information display. */
-static void
-usage (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 IS-IS routing\n\n\
--d, --daemon Runs in daemon mode\n\
--f, --config_file Set configuration file name\n\
--i, --pid_file Set process identifier file name\n\
--z, --socket Set path of zebra socket\n\
--A, --vty_addr Set vty's bind address\n\
--P, --vty_port Set vty's port number\n\
--u, --user User to run as\n\
--g, --group Group to run as\n\
--v, --version Print program version\n\
--C, --dryrun Check configuration for validity and exit\n\
--h, --help Display this help and exit\n\
-\n\
-Report bugs to %s\n", progname, FRR_BUG_ADDRESS);
- }
-
- exit (status);
-}
-
-
-void
-reload ()
-{
- zlog_debug ("Reload");
- /* FIXME: Clean up func call here */
- vty_reset ();
- (void) isisd_privs.change (ZPRIVS_RAISE);
- execve (_progpath, _argv, _envp);
- zlog_err ("Reload failed: cannot exec %s: %s", _progpath,
- safe_strerror (errno));
-}
-
-static __attribute__((__noreturn__)) void
-terminate (int i)
+static __attribute__((__noreturn__)) void terminate(int i)
{
- exit (i);
+ isis_zebra_stop();
+ exit(i);
}
/*
* Signal handlers
*/
-void
-sighup (void)
+void sighup(void)
{
- zlog_debug ("SIGHUP received");
- reload ();
-
- return;
+ zlog_err("SIGHUP/reload is not implemented for isisd");
+ return;
}
-__attribute__((__noreturn__)) void
-sigint (void)
+__attribute__((__noreturn__)) void sigint(void)
{
- zlog_notice ("Terminating on signal SIGINT");
- terminate (0);
+ zlog_notice("Terminating on signal SIGINT");
+ terminate(0);
}
-__attribute__((__noreturn__)) void
-sigterm (void)
+__attribute__((__noreturn__)) void sigterm(void)
{
- zlog_notice ("Terminating on signal SIGTERM");
- terminate (0);
+ zlog_notice("Terminating on signal SIGTERM");
+ terminate(0);
}
-void
-sigusr1 (void)
+void sigusr1(void)
{
- zlog_debug ("SIGUSR1 received");
- zlog_rotate (NULL);
+ 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,
- },
+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 main(int argc, char **argv, char **envp)
{
- char *p;
- int opt, vty_port = ISISD_VTY_PORT;
- struct thread thread;
- char *config_file = NULL;
- char *vty_addr = NULL;
- int dryrun = 0;
-
- /* Get the programname without the preceding path. */
- progname = ((p = strrchr (argv[0], '/')) ? ++p : argv[0]);
-
- zlog_default = openzlog (progname, ZLOG_ISIS, 0,
- LOG_CONS | LOG_NDELAY | LOG_PID, LOG_DAEMON);
- zprivs_init (&isisd_privs);
-#if defined(HAVE_CUMULUS)
- zlog_set_level (NULL, ZLOG_DEST_SYSLOG, zlog_default->default_lvl);
-#endif
+ int opt;
- /* for reload */
- _argc = argc;
- _argv = argv;
- _envp = envp;
- if (getcwd (_cwd, sizeof (_cwd)) == NULL)
- {
- zlog_err ("ISISd: Unable to determine CWD: %d", errno);
- exit (1);
- }
-
- if (*argv[0] == '.')
- snprintf (_progpath, sizeof (_progpath), "%s/%s", _cwd, _argv[0]);
- else
- snprintf (_progpath, sizeof (_progpath), "%s", argv[0]);
-
- /* Command line argument treatment. */
- while (1)
- {
- opt = getopt_long (argc, argv, "df:i:z:hA:p:P:u:g:vC", longopts, 0);
-
- if (opt == EOF)
- break;
-
- switch (opt)
- {
- case 0:
- break;
- case 'd':
- daemon_mode = 1;
- break;
- case 'f':
- config_file = optarg;
- break;
- case 'i':
- pid_file = optarg;
- break;
- case 'z':
- zclient_serv_path_set (optarg);
- break;
- case 'A':
- vty_addr = optarg;
- break;
- case 'P':
- /* Deal with atoi() returning 0 on failure, and isisd not
- listening on isisd port... */
- if (strcmp (optarg, "0") == 0)
- {
- vty_port = 0;
- break;
- }
- vty_port = atoi (optarg);
- vty_port = (vty_port ? vty_port : ISISD_VTY_PORT);
- break;
- case 'u':
- isisd_privs.user = optarg;
- break;
- case 'g':
- isisd_privs.group = optarg;
- break;
- case 'v':
- printf ("ISISd version %s\n", ISISD_VERSION);
- printf ("Copyright (c) 2001-2002 Sampo Saaristo,"
- " Ofer Wald and Hannes Gredler\n");
- print_version ("Zebra");
- exit (0);
- break;
- case 'C':
- dryrun = 1;
- break;
- case 'h':
- usage (0);
- break;
- default:
- usage (1);
- break;
+ 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;
+ }
}
- }
-
- /* thread master */
- master = thread_master_create ();
-
- /* random seed from time */
- srandom (time (NULL));
-
- /*
- * initializations
- */
- signal_init (master, array_size (isisd_signals), isisd_signals);
- cmd_init (1);
- vty_config_lockless ();
- vty_init (master);
- memory_init ();
- 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);
-
- /* parse config file */
- /* this is needed three times! because we have interfaces before the areas */
- vty_read_config (config_file, config_default);
-
- /* Start execution only if not in dry-run mode */
- if (dryrun)
- return(0);
-
- /* demonize */
- if (daemon_mode && daemon (0, 0) < 0)
- {
- zlog_err("ISISd daemon failed: %s", strerror(errno));
- return (1);
- }
-
- /* Process ID file creation. */
- if (pid_file[0] != '\0')
- pid_output (pid_file);
-
- /* Make isis vty socket. */
- vty_serv_sock (vty_addr, vty_port, ISIS_VTYSH_PATH);
-
- /* Print banner. */
- zlog_notice ("Quagga-ISISd %s starting: vty@%d", FRR_VERSION, vty_port);
-
- /* Start finite state machine. */
- while (thread_fetch (master, &thread))
- thread_call (&thread);
-
- /* Not reached. */
- exit (0);
+
+ vty_config_lockless();
+ /* thread master */
+ master = frr_init();
+
+ /*
+ * initializations
+ */
+ access_list_init();
+ vrf_init(NULL, NULL, NULL, NULL);
+ 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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