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_routemap.h"
  69
  70 /* eigprd privileges */
  71 zebra_capabilities_t _caps_p[] = {
  72         ZCAP_NET_RAW, ZCAP_BIND, ZCAP_NET_ADMIN,
  73 };
  74
  75 struct zebra_privs_t eigrpd_privs = {
  76 #if defined(FRR_USER) && defined(FRR_GROUP)
  77         .user = FRR_USER,
  78         .group = FRR_GROUP,
  79 #endif
  80 #if defined(VTY_GROUP)
  81         .vty_group = VTY_GROUP,
  82 #endif
  83         .caps_p = _caps_p,
  84         .cap_num_p = array_size(_caps_p),
  85         .cap_num_i = 0};
  86
  87 /* EIGRPd options. */
  88 struct option longopts[] = {{0}};
  89
  90 /* Master of threads. */
  91 struct thread_master *master;
  92
  93 /* SIGHUP handler. */
  94 static void sighup(void)
  95 {
  96         zlog_info("SIGHUP received");
  97 }
  98
  99 /* SIGINT / SIGTERM handler. */
 100 static void sigint(void)
 101 {
 102         zlog_notice("Terminating on signal");
 103         eigrp_terminate();
 104
 105         exit(0);
 106 }
 107
 108 /* SIGUSR1 handler. */
 109 static void sigusr1(void)
 110 {
 111         zlog_rotate();
 112 }
 113
 114 struct quagga_signal_t eigrp_signals[] = {
 115         {
 116                 .signal = SIGHUP,
 117                 .handler = &sighup,
 118         },
 119         {
 120                 .signal = SIGUSR1,
 121                 .handler = &sigusr1,
 122         },
 123         {
 124                 .signal = SIGINT,
 125                 .handler = &sigint,
 126         },
 127         {
 128                 .signal = SIGTERM,
 129                 .handler = &sigint,
 130         },
 131 };
 132
 133 static const struct frr_yang_module_info *eigrpd_yang_modules[] = {
 134         &frr_interface_info,
 135 };
 136
 137 FRR_DAEMON_INFO(eigrpd, EIGRP, .vty_port = EIGRP_VTY_PORT,
 138
 139                 .proghelp = "Implementation of the EIGRP routing protocol.",
 140
 141                 .signals = eigrp_signals,
 142                 .n_signals = array_size(eigrp_signals),
 143
 144                 .privs = &eigrpd_privs, .yang_modules = eigrpd_yang_modules,
 145                 .n_yang_modules = array_size(eigrpd_yang_modules), )
 146
 147 /* EIGRPd main routine. */
 148 int main(int argc, char **argv, char **envp)
 149 {
 150         frr_preinit(&eigrpd_di, argc, argv);
 151         frr_opt_add("", longopts, "");
 152
 153         while (1) {
 154                 int opt;
 155
 156                 opt = frr_getopt(argc, argv, NULL);
 157
 158                 if (opt == EOF)
 159                         break;
 160
 161                 switch (opt) {
 162                 case 0:
 163                         break;
 164                 default:
 165                         frr_help_exit(1);
 166                         break;
 167                 }
 168         }
 169
 170         eigrp_sw_version_initialize();
 171
 172         /* EIGRP master init. */
 173         eigrp_master_init();
 174         eigrp_om->master = frr_init();
 175         master = eigrp_om->master;
 176
 177         eigrp_error_init();
 178         vrf_init(NULL, NULL, NULL, NULL, NULL);
 179
 180         /*EIGRPd init*/
 181         eigrp_if_init();
 182         eigrp_zebra_init();
 183         eigrp_debug_init();
 184
 185         /* Get configuration file. */
 186         /* EIGRP VTY inits */
 187         eigrp_vty_init();
 188         keychain_init();
 189         eigrp_vty_show_init();
 190         eigrp_vty_if_init();
 191
 192 #ifdef HAVE_SNMP
 193         eigrp_snmp_init();
 194 #endif /* HAVE_SNMP */
 195
 196         /* Access list install. */
 197         access_list_init();
 198         access_list_add_hook(eigrp_distribute_update_all_wrapper);
 199         access_list_delete_hook(eigrp_distribute_update_all_wrapper);
 200
 201         /* Prefix list initialize.*/
 202         prefix_list_init();
 203         prefix_list_add_hook(eigrp_distribute_update_all);
 204         prefix_list_delete_hook(eigrp_distribute_update_all);
 205
 206         /*
 207          * XXX: This is just to get the CLI installed to suppress VTYSH errors.
 208          * Routemaps in EIGRP are not yet functional.
 209          */
 210         route_map_init();
 211         /*eigrp_route_map_init();
 212           route_map_add_hook (eigrp_rmap_update);
 213           route_map_delete_hook (eigrp_rmap_update);*/
 214         /*if_rmap_init (EIGRP_NODE);
 215           if_rmap_hook_add (eigrp_if_rmap_update);
 216           if_rmap_hook_delete (eigrp_if_rmap_update);*/
 217
 218         /* Distribute list install. */
 219         distribute_list_init(EIGRP_NODE);
 220         distribute_list_add_hook(eigrp_distribute_update);
 221         distribute_list_delete_hook(eigrp_distribute_update);
 222
 223         frr_config_fork();
 224         frr_run(master);
 225
 226         /* Not reached. */
 227         return (0);
 228 }