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-rw-r--r--ospf6d/ospf6_main.c326
1 files changed, 326 insertions, 0 deletions
diff --git a/ospf6d/ospf6_main.c b/ospf6d/ospf6_main.c
new file mode 100644
index 000000000..5ab517f36
--- /dev/null
+++ b/ospf6d/ospf6_main.c
@@ -0,0 +1,326 @@
+/*
+ * Copyright (C) 1999 Yasuhiro Ohara
+ *
+ * This file is part of GNU Zebra.
+ *
+ * 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 "getopt.h"
+#include "thread.h"
+#include "log.h"
+#include "version.h"
+#include "command.h"
+#include "vty.h"
+#include "memory.h"
+
+#include "ospf6d.h"
+#include "ospf6_network.h"
+
+void ospf6_init ();
+void ospf6_terminate ();
+void nexthop_init ();
+int ospf6_receive (struct thread *);
+
+extern int ospf6_sock;
+
+/* Default configuration file name for ospf6d. */
+#define OSPF6_DEFAULT_CONFIG "ospf6d.conf"
+/* Default port values. */
+#define OSPF6_VTY_PORT 2606
+
+/* ospf6d options, we use GNU getopt library. */
+struct option longopts[] =
+{
+ { "daemon", no_argument, NULL, 'd'},
+ { "config_file", required_argument, NULL, 'f'},
+ { "pid_file", required_argument, NULL, 'i'},
+ { "vty_addr", required_argument, NULL, 'A'},
+ { "vty_port", required_argument, NULL, 'P'},
+ { "version", no_argument, NULL, 'v'},
+ { "help", no_argument, NULL, 'h'},
+ { 0 }
+};
+
+/* Configuration file and directory. */
+char config_current[] = OSPF6_DEFAULT_CONFIG;
+char config_default[] = SYSCONFDIR OSPF6_DEFAULT_CONFIG;
+
+/* ospf6d program name. */
+
+/* is daemon? */
+int daemon_mode = 0;
+
+/* Master of threads. */
+struct thread_master *master;
+
+/* Process ID saved for use by init system */
+char *pid_file = PATH_OSPF6D_PID;
+
+/* for reload */
+char _cwd[64];
+char _progpath[64];
+int _argc;
+char **_argv;
+char **_envp;
+
+/* 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 OSPF version 3.\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\
+-A, --vty_addr Set vty's bind address\n\
+-P, --vty_port Set vty's port number\n\
+-v, --version Print program version\n\
+-h, --help Display this help and exit\n\
+\n\
+Report bugs to yasu@sfc.wide.ad.jp\n", progname);
+ }
+
+ exit (status);
+}
+
+
+void
+_reload ()
+{
+ zlog_notice ("OSPF6d (Zebra-%s ospf6d-%s) reloaded",
+ ZEBRA_VERSION, OSPF6_DAEMON_VERSION);
+ ospf6_zebra_finish ();
+ vty_finish ();
+ execve (_progpath, _argv, _envp);
+}
+
+void
+terminate (int i)
+{
+ ospf6_delete (ospf6);
+ unlink (PATH_OSPF6D_PID);
+ zlog_notice ("OSPF6d (Zebra-%s ospf6d-%s) terminated",
+ ZEBRA_VERSION, OSPF6_DAEMON_VERSION);
+ exit (i);
+}
+
+/* SIGHUP handler. */
+void
+sighup (int sig)
+{
+ zlog_info ("SIGHUP received");
+ _reload ();
+}
+
+/* SIGINT handler. */
+void
+sigint (int sig)
+{
+ zlog_info ("SIGINT received");
+ terminate (0);
+}
+
+/* SIGTERM handler. */
+void
+sigterm (int sig)
+{
+ zlog_info ("SIGTERM received");
+ terminate (0);
+}
+
+/* SIGUSR1 handler. */
+void
+sigusr1 (int sig)
+{
+ zlog_info ("SIGUSR1 received");
+ zlog_rotate (NULL);
+}
+
+/* Signale wrapper. */
+RETSIGTYPE *
+signal_set (int signo, void (*func)(int))
+{
+ int ret;
+ struct sigaction sig;
+ struct sigaction osig;
+
+ sig.sa_handler = func;
+ sigemptyset (&sig.sa_mask);
+ sig.sa_flags = 0;
+#ifdef SA_RESTART
+ sig.sa_flags |= SA_RESTART;
+#endif /* SA_RESTART */
+
+ ret = sigaction (signo, &sig, &osig);
+
+ if (ret < 0)
+ return (SIG_ERR);
+ else
+ return (osig.sa_handler);
+}
+
+/* Initialization of signal handles. */
+void
+signal_init ()
+{
+ signal_set (SIGHUP, sighup);
+ signal_set (SIGINT, sigint);
+ signal_set (SIGTERM, sigterm);
+ signal_set (SIGPIPE, SIG_IGN);
+#ifdef SIGTSTP
+ signal_set (SIGTSTP, SIG_IGN);
+#endif
+#ifdef SIGTTIN
+ signal_set (SIGTTIN, SIG_IGN);
+#endif
+#ifdef SIGTTOU
+ signal_set (SIGTTOU, SIG_IGN);
+#endif
+ signal_set (SIGUSR1, sigusr1);
+}
+
+/* Main routine of ospf6d. Treatment of argument and start ospf finite
+ state machine is handled here. */
+int
+main (int argc, char *argv[], char *envp[])
+{
+ char *p;
+ int opt;
+ char *vty_addr = NULL;
+ int vty_port = 0;
+ char *config_file = NULL;
+ char *progname;
+ struct thread thread;
+ int flag;
+
+ /* Set umask before anything for security */
+ umask (0027);
+
+ /* Preserve name of myself. */
+ progname = ((p = strrchr (argv[0], '/')) ? ++p : argv[0]);
+
+ /* for reload */
+ _argc = argc;
+ _argv = argv;
+ _envp = envp;
+ getcwd (_cwd, sizeof (_cwd));
+ 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:hp:A:P:v", longopts, 0);
+
+ if (opt == EOF)
+ break;
+
+ switch (opt)
+ {
+ case 0:
+ break;
+ case 'd':
+ daemon_mode = 1;
+ break;
+ case 'f':
+ config_file = optarg;
+ break;
+ case 'A':
+ vty_addr = optarg;
+ break;
+ case 'i':
+ pid_file = optarg;
+ break;
+ case 'P':
+ vty_port = atoi (optarg);
+ break;
+ case 'v':
+ print_version (progname);
+ exit (0);
+ break;
+ case 'h':
+ usage (progname, 0);
+ break;
+ default:
+ usage (progname, 1);
+ break;
+ }
+ }
+
+ /* thread master */
+ master = thread_master_create ();
+
+ /* Initializations. */
+ if (! daemon_mode)
+ flag = ZLOG_STDOUT;
+ else
+ flag = 0;
+
+ zlog_default = openzlog (progname, flag, ZLOG_OSPF6,
+ LOG_CONS|LOG_NDELAY|LOG_PERROR|LOG_PID,
+ LOG_DAEMON);
+ signal_init ();
+ cmd_init (1);
+ vty_init ();
+ ospf6_init ();
+ memory_init ();
+ sort_node ();
+
+ /* parse config file */
+ vty_read_config (config_file, config_current, config_default);
+
+ if (daemon_mode)
+ daemon (0, 0);
+
+ /* pid file create */
+#if 0
+ pid_output_lock (pid_file);
+#else
+ pid_output (pid_file);
+#endif
+
+ /* Make ospf protocol socket. */
+ ospf6_serv_sock ();
+ thread_add_read (master, ospf6_receive, NULL, ospf6_sock);
+
+ /* Make ospf vty socket. */
+ vty_serv_sock (vty_addr,
+ vty_port ? vty_port : OSPF6_VTY_PORT, OSPF6_VTYSH_PATH);
+
+ /* Print start message */
+ zlog_notice ("OSPF6d (Zebra-%s ospf6d-%s) starts",
+ ZEBRA_VERSION, OSPF6_DAEMON_VERSION);
+
+ /* Start finite state machine, here we go! */
+ while (thread_fetch (master, &thread))
+ thread_call (&thread);
+
+ /* Log in case thread failed */
+ zlog_warn ("Thread failed");
+ terminate (0);
+
+ /* Not reached. */
+ exit (0);
+}
+
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