ripngd/ripng_main.c

   1 /*
   2  * RIPngd main routine.
   3  * Copyright (C) 1998, 1999 Kunihiro Ishiguro
   4  *
   5  * This file is part of GNU Zebra.
   6  *
   7  * GNU Zebra is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published by the
   9  * Free Software Foundation; either version 2, or (at your option) any
  10  * later version.
  11  *
  12  * GNU Zebra is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; see the file COPYING; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22 #include <zebra.h>
  23
  24 #include <lib/version.h>
  25 #include "getopt.h"
  26 #include "vector.h"
  27 #include "vty.h"
  28 #include "command.h"
  29 #include "memory.h"
  30 #include "thread.h"
  31 #include "log.h"
  32 #include "prefix.h"
  33 #include "if.h"
  34 #include "privs.h"
  35 #include "sigevent.h"
  36 #include "vrf.h"
  37 #include "if_rmap.h"
  38 #include "libfrr.h"
  39
  40 #include "ripngd/ripngd.h"
  41 #include "ripngd/ripng_nb.h"
  42
  43 /* RIPngd options. */
  44 struct option longopts[] = {{0}};
  45
  46 /* ripngd privileges */
  47 zebra_capabilities_t _caps_p[] = {ZCAP_NET_RAW, ZCAP_BIND, ZCAP_SYS_ADMIN};
  48
  49 struct zebra_privs_t ripngd_privs = {
  50 #if defined(FRR_USER)
  51         .user = FRR_USER,
  52 #endif
  53 #if defined FRR_GROUP
  54         .group = FRR_GROUP,
  55 #endif
  56 #ifdef VTY_GROUP
  57         .vty_group = VTY_GROUP,
  58 #endif
  59         .caps_p = _caps_p,
  60         .cap_num_p = array_size(_caps_p),
  61         .cap_num_i = 0};
  62
  63
  64 /* Master of threads. */
  65 struct thread_master *master;
  66
  67 static struct frr_daemon_info ripngd_di;
  68
  69 /* SIGHUP handler. */
  70 static void sighup(void)
  71 {
  72         zlog_info("SIGHUP received");
  73
  74         /* Reload config file. */
  75         vty_read_config(NULL, ripngd_di.config_file, config_default);
  76 }
  77
  78 /* SIGINT handler. */
  79 static void sigint(void)
  80 {
  81         zlog_notice("Terminating on signal");
  82
  83         ripng_vrf_terminate();
  84         if_rmap_terminate();
  85         ripng_zebra_stop();
  86         frr_fini();
  87         exit(0);
  88 }
  89
  90 /* SIGUSR1 handler. */
  91 static void sigusr1(void)
  92 {
  93         zlog_rotate();
  94 }
  95
  96 struct quagga_signal_t ripng_signals[] = {
  97         {
  98                 .signal = SIGHUP,
  99                 .handler = &sighup,
 100         },
 101         {
 102                 .signal = SIGUSR1,
 103                 .handler = &sigusr1,
 104         },
 105         {
 106                 .signal = SIGINT,
 107                 .handler = &sigint,
 108         },
 109         {
 110                 .signal = SIGTERM,
 111                 .handler = &sigint,
 112         },
 113 };
 114
 115 static const struct frr_yang_module_info *const ripngd_yang_modules[] = {
 116         &frr_interface_info,
 117         &frr_ripngd_info,
 118 };
 119
 120 FRR_DAEMON_INFO(ripngd, RIPNG, .vty_port = RIPNG_VTY_PORT,
 121
 122                 .proghelp = "Implementation of the RIPng routing protocol.",
 123
 124                 .signals = ripng_signals,
 125                 .n_signals = array_size(ripng_signals),
 126
 127                 .privs = &ripngd_privs,
 128
 129                 .yang_modules = ripngd_yang_modules,
 130                 .n_yang_modules = array_size(ripngd_yang_modules), )
 131
 132 #define DEPRECATED_OPTIONS ""
 133
 134 /* RIPngd main routine. */
 135 int main(int argc, char **argv)
 136 {
 137         frr_preinit(&ripngd_di, argc, argv);
 138
 139         frr_opt_add("" DEPRECATED_OPTIONS, longopts, "");
 140
 141         while (1) {
 142                 int opt;
 143
 144                 opt = frr_getopt(argc, argv, NULL);
 145
 146                 if (opt && opt < 128 && strchr(DEPRECATED_OPTIONS, opt)) {
 147                         fprintf(stderr,
 148                                 "The -%c option no longer exists.\nPlease refer to the manual.\n",
 149                                 opt);
 150                         continue;
 151                 }
 152
 153                 if (opt == EOF)
 154                         break;
 155
 156                 switch (opt) {
 157                 case 0:
 158                         break;
 159                 default:
 160                         frr_help_exit(1);
 161                         break;
 162                 }
 163         }
 164
 165         master = frr_init();
 166
 167         /* Library inits. */
 168         ripng_vrf_init();
 169
 170         /* RIPngd inits. */
 171         ripng_init();
 172         ripng_cli_init();
 173         zebra_init(master);
 174
 175         frr_config_fork();
 176         frr_run(master);
 177
 178         /* Not reached. */
 179         return 0;
 180 }