Line data    Source code

       1             : /* RIPd main routine.
       2             :  * Copyright (C) 1997, 98 Kunihiro Ishiguro <kunihiro@zebra.org>
       3             :  *
       4             :  * This file is part of GNU Zebra.
       5             :  *
       6             :  * GNU Zebra is free software; you can redistribute it and/or modify it
       7             :  * under the terms of the GNU General Public License as published by the
       8             :  * Free Software Foundation; either version 2, or (at your option) any
       9             :  * later version.
      10             :  *
      11             :  * GNU Zebra is distributed in the hope that it will be useful, but
      12             :  * WITHOUT ANY WARRANTY; without even the implied warranty of
      13             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14             :  * General Public License for more details.
      15             :  *
      16             :  * You should have received a copy of the GNU General Public License along
      17             :  * with this program; see the file COPYING; if not, write to the Free Software
      18             :  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
      19             :  */
      20             : 
      21             : #include <zebra.h>
      22             : 
      23             : #include <lib/version.h>
      24             : #include "getopt.h"
      25             : #include "thread.h"
      26             : #include "command.h"
      27             : #include "memory.h"
      28             : #include "prefix.h"
      29             : #include "filter.h"
      30             : #include "keychain.h"
      31             : #include "log.h"
      32             : #include "privs.h"
      33             : #include "sigevent.h"
      34             : #include "zclient.h"
      35             : #include "vrf.h"
      36             : #include "if_rmap.h"
      37             : #include "libfrr.h"
      38             : #include "routemap.h"
      39             : 
      40             : #include "ripd/ripd.h"
      41             : #include "ripd/rip_nb.h"
      42             : #include "ripd/rip_errors.h"
      43             : 
      44             : /* ripd options. */
      45             : static struct option longopts[] = {{0}};
      46             : 
      47             : /* ripd privileges */
      48             : zebra_capabilities_t _caps_p[] = {ZCAP_NET_RAW, ZCAP_BIND, ZCAP_SYS_ADMIN};
      49             : 
      50             : struct zebra_privs_t ripd_privs = {
      51             : #if defined(FRR_USER)
      52             :         .user = FRR_USER,
      53             : #endif
      54             : #if defined FRR_GROUP
      55             :         .group = FRR_GROUP,
      56             : #endif
      57             : #ifdef VTY_GROUP
      58             :         .vty_group = VTY_GROUP,
      59             : #endif
      60             :         .caps_p = _caps_p,
      61             :         .cap_num_p = array_size(_caps_p),
      62             :         .cap_num_i = 0};
      63             : 
      64             : /* Master of threads. */
      65             : struct thread_master *master;
      66             : 
      67             : static struct frr_daemon_info ripd_di;
      68             : 
      69             : /* SIGHUP handler. */
      70           0 : static void sighup(void)
      71             : {
      72           0 :         zlog_info("SIGHUP received");
      73             : 
      74             :         /* Reload config file. */
      75           0 :         vty_read_config(NULL, ripd_di.config_file, config_default);
      76           0 : }
      77             : 
      78             : /* SIGINT handler. */
      79           1 : static void sigint(void)
      80             : {
      81           1 :         zlog_notice("Terminating on signal");
      82             : 
      83           1 :         rip_vrf_terminate();
      84           1 :         if_rmap_terminate();
      85           1 :         rip_zclient_stop();
      86           1 :         frr_fini();
      87             : 
      88           1 :         exit(0);
      89             : }
      90             : 
      91             : /* SIGUSR1 handler. */
      92           0 : static void sigusr1(void)
      93             : {
      94           0 :         zlog_rotate();
      95           0 : }
      96             : 
      97             : static struct frr_signal_t ripd_signals[] = {
      98             :         {
      99             :                 .signal = SIGHUP,
     100             :                 .handler = &sighup,
     101             :         },
     102             :         {
     103             :                 .signal = SIGUSR1,
     104             :                 .handler = &sigusr1,
     105             :         },
     106             :         {
     107             :                 .signal = SIGINT,
     108             :                 .handler = &sigint,
     109             :         },
     110             :         {
     111             :                 .signal = SIGTERM,
     112             :                 .handler = &sigint,
     113             :         },
     114             : };
     115             : 
     116             : static const struct frr_yang_module_info *const ripd_yang_modules[] = {
     117             :         &frr_filter_info,
     118             :         &frr_interface_info,
     119             :         &frr_ripd_info,
     120             :         &frr_route_map_info,
     121             :         &frr_vrf_info,
     122             : };
     123             : 
     124           1 : FRR_DAEMON_INFO(ripd, RIP, .vty_port = RIP_VTY_PORT,
     125             : 
     126             :                 .proghelp = "Implementation of the RIP routing protocol.",
     127             : 
     128             :                 .signals = ripd_signals, .n_signals = array_size(ripd_signals),
     129             : 
     130             :                 .privs = &ripd_privs, .yang_modules = ripd_yang_modules,
     131             :                 .n_yang_modules = array_size(ripd_yang_modules),
     132             : );
     133             : 
     134             : #define DEPRECATED_OPTIONS ""
     135             : 
     136             : /* Main routine of ripd. */
     137           1 : int main(int argc, char **argv)
     138             : {
     139           1 :         frr_preinit(&ripd_di, argc, argv);
     140             : 
     141           1 :         frr_opt_add("" DEPRECATED_OPTIONS, longopts, "");
     142             : 
     143             :         /* Command line option parse. */
     144           1 :         while (1) {
     145           1 :                 int opt;
     146             : 
     147           1 :                 opt = frr_getopt(argc, argv, NULL);
     148             : 
     149           1 :                 if (opt && opt < 128 && strchr(DEPRECATED_OPTIONS, opt)) {
     150           0 :                         fprintf(stderr,
     151             :                                 "The -%c option no longer exists.\nPlease refer to the manual.\n",
     152             :                                 opt);
     153           0 :                         continue;
     154             :                 }
     155             : 
     156           1 :                 if (opt == EOF)
     157             :                         break;
     158             : 
     159           0 :                 switch (opt) {
     160             :                 case 0:
     161             :                         break;
     162           0 :                 default:
     163           0 :                         frr_help_exit(1);
     164             :                 }
     165             :         }
     166             : 
     167             :         /* Prepare master thread. */
     168           1 :         master = frr_init();
     169             : 
     170             :         /* Library initialization. */
     171           1 :         rip_error_init();
     172           1 :         keychain_init();
     173           1 :         rip_vrf_init();
     174             : 
     175             :         /* RIP related initialization. */
     176           1 :         rip_init();
     177           1 :         rip_if_init();
     178           1 :         rip_cli_init();
     179           1 :         rip_zclient_init(master);
     180             : 
     181           1 :         frr_config_fork();
     182           1 :         frr_run(master);
     183             : 
     184             :         /* Not reached. */
     185           0 :         return 0;
     186             : }