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 "thread.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 struct zebra_privs_t ripngd_privs = {
  36 #if defined(FRR_USER)
  37         .user = FRR_USER,
  38 #endif
  39 #if defined FRR_GROUP
  40         .group = FRR_GROUP,
  41 #endif
  42 #ifdef VTY_GROUP
  43         .vty_group = VTY_GROUP,
  44 #endif
  45         .caps_p = _caps_p,
  46         .cap_num_p = array_size(_caps_p),
  47         .cap_num_i = 0};
  48
  49
  50 /* Master of threads. */
  51 struct thread_master *master;
  52
  53 static struct frr_daemon_info ripngd_di;
  54
  55 /* SIGHUP handler. */
  56 static void sighup(void)
  57 {
  58         zlog_info("SIGHUP received");
  59
  60         /* Reload config file. */
  61         vty_read_config(NULL, ripngd_di.config_file, config_default);
  62 }
  63
  64 /* SIGINT handler. */
  65 static void sigint(void)
  66 {
  67         zlog_notice("Terminating on signal");
  68
  69         ripng_vrf_terminate();
  70         if_rmap_terminate();
  71         ripng_zebra_stop();
  72         frr_fini();
  73         exit(0);
  74 }
  75
  76 /* SIGUSR1 handler. */
  77 static void sigusr1(void)
  78 {
  79         zlog_rotate();
  80 }
  81
  82 struct frr_signal_t ripng_signals[] = {
  83         {
  84                 .signal = SIGHUP,
  85                 .handler = &sighup,
  86         },
  87         {
  88                 .signal = SIGUSR1,
  89                 .handler = &sigusr1,
  90         },
  91         {
  92                 .signal = SIGINT,
  93                 .handler = &sigint,
  94         },
  95         {
  96                 .signal = SIGTERM,
  97                 .handler = &sigint,
  98         },
  99 };
 100
 101 static const struct frr_yang_module_info *const ripngd_yang_modules[] = {
 102         &frr_filter_info,
 103         &frr_interface_info,
 104         &frr_ripngd_info,
 105         &frr_route_map_info,
 106         &frr_vrf_info,
 107 };
 108
 109 FRR_DAEMON_INFO(ripngd, RIPNG, .vty_port = RIPNG_VTY_PORT,
 110
 111                 .proghelp = "Implementation of the RIPng routing protocol.",
 112
 113                 .signals = ripng_signals,
 114                 .n_signals = array_size(ripng_signals),
 115
 116                 .privs = &ripngd_privs,
 117
 118                 .yang_modules = ripngd_yang_modules,
 119                 .n_yang_modules = array_size(ripngd_yang_modules),
 120 );
 121
 122 #define DEPRECATED_OPTIONS ""
 123
 124 /* RIPngd main routine. */
 125 int main(int argc, char **argv)
 126 {
 127         frr_preinit(&ripngd_di, argc, argv);
 128
 129         frr_opt_add("" DEPRECATED_OPTIONS, longopts, "");
 130
 131         while (1) {
 132                 int opt;
 133
 134                 opt = frr_getopt(argc, argv, NULL);
 135
 136                 if (opt && opt < 128 && strchr(DEPRECATED_OPTIONS, opt)) {
 137                         fprintf(stderr,
 138                                 "The -%c option no longer exists.\nPlease refer to the manual.\n",
 139                                 opt);
 140                         continue;
 141                 }
 142
 143                 if (opt == EOF)
 144                         break;
 145
 146                 switch (opt) {
 147                 case 0:
 148                         break;
 149                 default:
 150                         frr_help_exit(1);
 151                 }
 152         }
 153
 154         master = frr_init();
 155
 156         /* Library inits. */
 157         ripng_vrf_init();
 158
 159         /* RIPngd inits. */
 160         ripng_init();
 161         ripng_cli_init();
 162         zebra_init(master);
 163
 164         frr_config_fork();
 165         frr_run(master);
 166
 167         /* Not reached. */
 168         return 0;
 169 }