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 "memory_vty.h"
  31 #include "thread.h"
  32 #include "log.h"
  33 #include "prefix.h"
  34 #include "if.h"
  35 #include "privs.h"
  36 #include "sigevent.h"
  37 #include "vrf.h"
  38 #include "libfrr.h"
  39
  40 #include "ripngd/ripngd.h"
  41
  42 /* RIPngd options. */
  43 #if CONFDATE > 20190521
  44         CPP_NOTICE("-r / --retain has reached deprecation EOL, remove")
  45 #endif
  46 struct option longopts[] = {{"retain", no_argument, NULL, 'r'}, {0}};
  47
  48 /* ripngd privileges */
  49 zebra_capabilities_t _caps_p[] = {ZCAP_NET_RAW, ZCAP_BIND};
  50
  51 struct zebra_privs_t ripngd_privs = {
  52 #if defined(FRR_USER)
  53         .user = FRR_USER,
  54 #endif
  55 #if defined FRR_GROUP
  56         .group = FRR_GROUP,
  57 #endif
  58 #ifdef VTY_GROUP
  59         .vty_group = VTY_GROUP,
  60 #endif
  61         .caps_p = _caps_p,
  62         .cap_num_p = 2,
  63         .cap_num_i = 0};
  64
  65
  66 /* Master of threads. */
  67 struct thread_master *master;
  68
  69 static struct frr_daemon_info ripngd_di;
  70
  71 /* SIGHUP handler. */
  72 static void sighup(void)
  73 {
  74         zlog_info("SIGHUP received");
  75
  76         /* Reload config file. */
  77         vty_read_config(NULL, ripngd_di.config_file, config_default);
  78 }
  79
  80 /* SIGINT handler. */
  81 static void sigint(void)
  82 {
  83         zlog_notice("Terminating on signal");
  84
  85         ripng_clean();
  86
  87         ripng_zebra_stop();
  88         frr_fini();
  89         exit(0);
  90 }
  91
  92 /* SIGUSR1 handler. */
  93 static void sigusr1(void)
  94 {
  95         zlog_rotate();
  96 }
  97
  98 struct quagga_signal_t ripng_signals[] = {
  99         {
 100                 .signal = SIGHUP,
 101                 .handler = &sighup,
 102         },
 103         {
 104                 .signal = SIGUSR1,
 105                 .handler = &sigusr1,
 106         },
 107         {
 108                 .signal = SIGINT,
 109                 .handler = &sigint,
 110         },
 111         {
 112                 .signal = SIGTERM,
 113                 .handler = &sigint,
 114         },
 115 };
 116
 117 static const struct frr_yang_module_info *ripngd_yang_modules[] = {
 118         &frr_interface_info,
 119         &frr_ripngd_info,
 120 };
 121
 122 FRR_DAEMON_INFO(ripngd, RIPNG, .vty_port = RIPNG_VTY_PORT,
 123
 124                 .proghelp = "Implementation of the RIPng routing protocol.",
 125
 126                 .signals = ripng_signals,
 127                 .n_signals = array_size(ripng_signals),
 128
 129                 .privs = &ripngd_privs,
 130
 131                 .yang_modules = ripngd_yang_modules,
 132                 .n_yang_modules = array_size(ripngd_yang_modules), )
 133
 134 #if CONFDATE > 20190521
 135 CPP_NOTICE("-r / --retain has reached deprecation EOL, remove")
 136 #endif
 137 #define DEPRECATED_OPTIONS "r"
 138
 139 /* RIPngd main routine. */
 140 int main(int argc, char **argv)
 141 {
 142         frr_preinit(&ripngd_di, argc, argv);
 143
 144         frr_opt_add("" DEPRECATED_OPTIONS, longopts, "");
 145
 146         while (1) {
 147                 int opt;
 148
 149                 opt = frr_getopt(argc, argv, NULL);
 150
 151                 if (opt && opt < 128 && strchr(DEPRECATED_OPTIONS, opt)) {
 152                         fprintf(stderr,
 153                                 "The -%c option no longer exists.\nPlease refer to the manual.\n",
 154                                 opt);
 155                         continue;
 156                 }
 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         master = frr_init();
 171
 172         /* Library inits. */
 173         vrf_init(NULL, NULL, NULL, NULL, NULL);
 174
 175         /* RIPngd inits. */
 176         ripng_init();
 177         ripng_cli_init();
 178         zebra_init(master);
 179         ripng_peer_init();
 180
 181         frr_config_fork();
 182         frr_run(master);
 183
 184         /* Not reached. */
 185         return 0;
 186 }