ripngd/ripng_main.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * RIPngd main routine.
   4  * Copyright (C) 1998, 1999 Kunihiro Ishiguro
   5  */
   6
   7 #include <zebra.h>
   8
   9 #include <lib/version.h>
  10 #include "getopt.h"
  11 #include "vector.h"
  12 #include "vty.h"
  13 #include "command.h"
  14 #include "memory.h"
  15 #include "frrevent.h"
  16 #include "log.h"
  17 #include "prefix.h"
  18 #include "if.h"
  19 #include "privs.h"
  20 #include "sigevent.h"
  21 #include "vrf.h"
  22 #include "if_rmap.h"
  23 #include "libfrr.h"
  24 #include "routemap.h"
  25
  26 #include "ripngd/ripngd.h"
  27 #include "ripngd/ripng_nb.h"
  28
  29 /* RIPngd options. */
  30 struct option longopts[] = {{0}};
  31
  32 /* ripngd privileges */
  33 zebra_capabilities_t _caps_p[] = {ZCAP_NET_RAW, ZCAP_BIND, ZCAP_SYS_ADMIN};
  34
  35 uint32_t zebra_ecmp_count = MULTIPATH_NUM;
  36
  37 struct zebra_privs_t ripngd_privs = {
  38 #if defined(FRR_USER)
  39         .user = FRR_USER,
  40 #endif
  41 #if defined FRR_GROUP
  42         .group = FRR_GROUP,
  43 #endif
  44 #ifdef VTY_GROUP
  45         .vty_group = VTY_GROUP,
  46 #endif
  47         .caps_p = _caps_p,
  48         .cap_num_p = array_size(_caps_p),
  49         .cap_num_i = 0};
  50
  51
  52 /* Master of threads. */
  53 struct event_loop *master;
  54
  55 static struct frr_daemon_info ripngd_di;
  56
  57 /* SIGHUP handler. */
  58 static void sighup(void)
  59 {
  60         zlog_info("SIGHUP received");
  61
  62         /* Reload config file. */
  63         vty_read_config(NULL, ripngd_di.config_file, config_default);
  64 }
  65
  66 /* SIGINT handler. */
  67 static void sigint(void)
  68 {
  69         zlog_notice("Terminating on signal");
  70
  71         ripng_vrf_terminate();
  72         if_rmap_terminate();
  73         ripng_zebra_stop();
  74         frr_fini();
  75         exit(0);
  76 }
  77
  78 /* SIGUSR1 handler. */
  79 static void sigusr1(void)
  80 {
  81         zlog_rotate();
  82 }
  83
  84 struct frr_signal_t ripng_signals[] = {
  85         {
  86                 .signal = SIGHUP,
  87                 .handler = &sighup,
  88         },
  89         {
  90                 .signal = SIGUSR1,
  91                 .handler = &sigusr1,
  92         },
  93         {
  94                 .signal = SIGINT,
  95                 .handler = &sigint,
  96         },
  97         {
  98                 .signal = SIGTERM,
  99                 .handler = &sigint,
 100         },
 101 };
 102
 103 static const struct frr_yang_module_info *const ripngd_yang_modules[] = {
 104         &frr_filter_info,
 105         &frr_interface_info,
 106         &frr_ripngd_info,
 107         &frr_route_map_info,
 108         &frr_vrf_info,
 109 };
 110
 111 FRR_DAEMON_INFO(ripngd, RIPNG, .vty_port = RIPNG_VTY_PORT,
 112
 113                 .proghelp = "Implementation of the RIPng routing protocol.",
 114
 115                 .signals = ripng_signals,
 116                 .n_signals = array_size(ripng_signals),
 117
 118                 .privs = &ripngd_privs,
 119
 120                 .yang_modules = ripngd_yang_modules,
 121                 .n_yang_modules = array_size(ripngd_yang_modules),
 122 );
 123
 124 #define DEPRECATED_OPTIONS ""
 125
 126 /* RIPngd main routine. */
 127 int main(int argc, char **argv)
 128 {
 129         frr_preinit(&ripngd_di, argc, argv);
 130
 131         frr_opt_add("" DEPRECATED_OPTIONS, longopts, "");
 132
 133         while (1) {
 134                 int opt;
 135
 136                 opt = frr_getopt(argc, argv, NULL);
 137
 138                 if (opt && opt < 128 && strchr(DEPRECATED_OPTIONS, opt)) {
 139                         fprintf(stderr,
 140                                 "The -%c option no longer exists.\nPlease refer to the manual.\n",
 141                                 opt);
 142                         continue;
 143                 }
 144
 145                 if (opt == EOF)
 146                         break;
 147
 148                 switch (opt) {
 149                 case 0:
 150                         break;
 151                 default:
 152                         frr_help_exit(1);
 153                 }
 154         }
 155
 156         master = frr_init();
 157
 158         /* Library inits. */
 159         ripng_vrf_init();
 160
 161         /* RIPngd inits. */
 162         ripng_init();
 163         ripng_cli_init();
 164         zebra_init(master);
 165
 166         frr_config_fork();
 167         frr_run(master);
 168
 169         /* Not reached. */
 170         return 0;
 171 }