eigrpd/eigrp_main.c

   1 /*
   2  * EIGRP Main Routine.
   3  * Copyright (C) 2013-2015
   4  * Authors:
   5  *   Donnie Savage
   6  *   Jan Janovic
   7  *   Matej Perina
   8  *   Peter Orsag
   9  *   Peter Paluch
  10  *   Frantisek Gazo
  11  *   Tomas Hvorkovy
  12  *   Martin Kontsek
  13  *   Lukas Koribsky
  14  *
  15  * This file is part of GNU Zebra.
  16  *
  17  * GNU Zebra is free software; you can redistribute it and/or modify it
  18  * under the terms of the GNU General Public License as published by the
  19  * Free Software Foundation; either version 2, or (at your option) any
  20  * later version.
  21  *
  22  * GNU Zebra is distributed in the hope that it will be useful, but
  23  * WITHOUT ANY WARRANTY; without even the implied warranty of
  24  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  25  * General Public License for more details.
  26  *
  27  * You should have received a copy of the GNU General Public License along
  28  * with this program; see the file COPYING; if not, write to the Free Software
  29  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  30  */
  31 #include <zebra.h>
  32
  33 #include <lib/version.h>
  34 #include "getopt.h"
  35 #include "thread.h"
  36 #include "prefix.h"
  37 #include "linklist.h"
  38 #include "if.h"
  39 #include "vector.h"
  40 #include "vty.h"
  41 #include "command.h"
  42 #include "filter.h"
  43 #include "plist.h"
  44 #include "stream.h"
  45 #include "log.h"
  46 #include "memory.h"
  47 #include "privs.h"
  48 #include "sigevent.h"
  49 #include "zclient.h"
  50 #include "keychain.h"
  51 #include "distribute.h"
  52 #include "libfrr.h"
  53 #include "routemap.h"
  54 //#include "if_rmap.h"
  55
  56 #include "eigrpd/eigrp_structs.h"
  57 #include "eigrpd/eigrpd.h"
  58 #include "eigrpd/eigrp_dump.h"
  59 #include "eigrpd/eigrp_interface.h"
  60 #include "eigrpd/eigrp_neighbor.h"
  61 #include "eigrpd/eigrp_packet.h"
  62 #include "eigrpd/eigrp_vty.h"
  63 #include "eigrpd/eigrp_zebra.h"
  64 #include "eigrpd/eigrp_network.h"
  65 #include "eigrpd/eigrp_snmp.h"
  66 #include "eigrpd/eigrp_filter.h"
  67 #include "eigrpd/eigrp_errors.h"
  68 #include "eigrpd/eigrp_vrf.h"
  69 //#include "eigrpd/eigrp_routemap.h"
  70
  71 /* eigprd privileges */
  72 zebra_capabilities_t _caps_p[] = {
  73         ZCAP_NET_RAW, ZCAP_BIND, ZCAP_NET_ADMIN,
  74 };
  75
  76 struct zebra_privs_t eigrpd_privs = {
  77 #if defined(FRR_USER) && defined(FRR_GROUP)
  78         .user = FRR_USER,
  79         .group = FRR_GROUP,
  80 #endif
  81 #if defined(VTY_GROUP)
  82         .vty_group = VTY_GROUP,
  83 #endif
  84         .caps_p = _caps_p,
  85         .cap_num_p = array_size(_caps_p),
  86         .cap_num_i = 0};
  87
  88 /* EIGRPd options. */
  89 struct option longopts[] = {{0}};
  90
  91 /* Master of threads. */
  92 struct thread_master *master;
  93
  94 /* Forward declaration of daemon info structure. */
  95 static struct frr_daemon_info eigrpd_di;
  96
  97 /* SIGHUP handler. */
  98 static void sighup(void)
  99 {
 100         zlog_info("SIGHUP received");
 101
 102         /* Reload config file. */
 103         vty_read_config(NULL, eigrpd_di.config_file, config_default);
 104 }
 105
 106 /* SIGINT / SIGTERM handler. */
 107 static void sigint(void)
 108 {
 109         zlog_notice("Terminating on signal");
 110         eigrp_terminate();
 111
 112         exit(0);
 113 }
 114
 115 /* SIGUSR1 handler. */
 116 static void sigusr1(void)
 117 {
 118         zlog_rotate();
 119 }
 120
 121 struct quagga_signal_t eigrp_signals[] = {
 122         {
 123                 .signal = SIGHUP,
 124                 .handler = &sighup,
 125         },
 126         {
 127                 .signal = SIGUSR1,
 128                 .handler = &sigusr1,
 129         },
 130         {
 131                 .signal = SIGINT,
 132                 .handler = &sigint,
 133         },
 134         {
 135                 .signal = SIGTERM,
 136                 .handler = &sigint,
 137         },
 138 };
 139
 140 static const struct frr_yang_module_info *const eigrpd_yang_modules[] = {
 141         &frr_eigrpd_info,
 142         &frr_interface_info,
 143 };
 144
 145 FRR_DAEMON_INFO(eigrpd, EIGRP, .vty_port = EIGRP_VTY_PORT,
 146
 147                 .proghelp = "Implementation of the EIGRP routing protocol.",
 148
 149                 .signals = eigrp_signals,
 150                 .n_signals = array_size(eigrp_signals),
 151
 152                 .privs = &eigrpd_privs, .yang_modules = eigrpd_yang_modules,
 153                 .n_yang_modules = array_size(eigrpd_yang_modules), )
 154
 155 /* EIGRPd main routine. */
 156 int main(int argc, char **argv, char **envp)
 157 {
 158         frr_preinit(&eigrpd_di, argc, argv);
 159         frr_opt_add("", longopts, "");
 160
 161         while (1) {
 162                 int opt;
 163
 164                 opt = frr_getopt(argc, argv, NULL);
 165
 166                 if (opt == EOF)
 167                         break;
 168
 169                 switch (opt) {
 170                 case 0:
 171                         break;
 172                 default:
 173                         frr_help_exit(1);
 174                         break;
 175                 }
 176         }
 177
 178         eigrp_sw_version_initialize();
 179
 180         /* EIGRP master init. */
 181         eigrp_master_init();
 182         eigrp_om->master = frr_init();
 183         master = eigrp_om->master;
 184
 185         eigrp_error_init();
 186         eigrp_vrf_init();
 187         vrf_init(NULL, NULL, NULL, NULL, NULL);
 188
 189         /*EIGRPd init*/
 190         eigrp_if_init();
 191         eigrp_zebra_init();
 192         eigrp_debug_init();
 193
 194         /* Get configuration file. */
 195         /* EIGRP VTY inits */
 196         eigrp_vty_init();
 197         keychain_init();
 198         eigrp_vty_show_init();
 199         eigrp_cli_init();
 200
 201 #ifdef HAVE_SNMP
 202         eigrp_snmp_init();
 203 #endif /* HAVE_SNMP */
 204
 205         /* Access list install. */
 206         access_list_init();
 207         access_list_add_hook(eigrp_distribute_update_all_wrapper);
 208         access_list_delete_hook(eigrp_distribute_update_all_wrapper);
 209
 210         /* Prefix list initialize.*/
 211         prefix_list_init();
 212         prefix_list_add_hook(eigrp_distribute_update_all);
 213         prefix_list_delete_hook(eigrp_distribute_update_all);
 214
 215         /*
 216          * XXX: This is just to get the CLI installed to suppress VTYSH errors.
 217          * Routemaps in EIGRP are not yet functional.
 218          */
 219         route_map_init();
 220         /*eigrp_route_map_init();
 221           route_map_add_hook (eigrp_rmap_update);
 222           route_map_delete_hook (eigrp_rmap_update);*/
 223         /*if_rmap_init (EIGRP_NODE); */
 224         /* Distribute list install. */
 225         distribute_list_init(EIGRP_NODE);
 226
 227         frr_config_fork();
 228         frr_run(master);
 229
 230         /* Not reached. */
 231         return (0);
 232 }