sharpd/sharp_main.c

   1 /*
   2  * SHARP - main code
   3  * Copyright (C) Cumulus Networks, Inc.
   4  *               Donald Sharp
   5  *
   6  * This file is part of FRR.
   7  *
   8  * FRR is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by the
  10  * Free Software Foundation; either version 2, or (at your option) any
  11  * later version.
  12  *
  13  * FRR is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with this program; see the file COPYING; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  21  */
  22 #include <zebra.h>
  23
  24 #include <lib/version.h>
  25 #include "getopt.h"
  26 #include "thread.h"
  27 #include "prefix.h"
  28 #include "linklist.h"
  29 #include "if.h"
  30 #include "vector.h"
  31 #include "vty.h"
  32 #include "command.h"
  33 #include "filter.h"
  34 #include "plist.h"
  35 #include "stream.h"
  36 #include "log.h"
  37 #include "memory.h"
  38 #include "privs.h"
  39 #include "sigevent.h"
  40 #include "zclient.h"
  41 #include "keychain.h"
  42 #include "distribute.h"
  43 #include "libfrr.h"
  44 #include "routemap.h"
  45 #include "nexthop_group.h"
  46
  47 #include "sharp_zebra.h"
  48 #include "sharp_vty.h"
  49 #include "sharp_globals.h"
  50
  51 zebra_capabilities_t _caps_p[] = {
  52 };
  53
  54 struct zebra_privs_t sharp_privs = {
  55 #if defined(FRR_USER) && defined(FRR_GROUP)
  56         .user = FRR_USER,
  57         .group = FRR_GROUP,
  58 #endif
  59 #if defined(VTY_GROUP)
  60         .vty_group = VTY_GROUP,
  61 #endif
  62         .caps_p = _caps_p,
  63         .cap_num_p = array_size(_caps_p),
  64         .cap_num_i = 0};
  65
  66 struct option longopts[] = {{0}};
  67
  68 /* Master of threads. */
  69 struct thread_master *master;
  70
  71 /* SIGHUP handler. */
  72 static void sighup(void)
  73 {
  74         zlog_info("SIGHUP received");
  75 }
  76
  77 /* SIGINT / SIGTERM handler. */
  78 static void sigint(void)
  79 {
  80         zlog_notice("Terminating on signal");
  81
  82         exit(0);
  83 }
  84
  85 /* SIGUSR1 handler. */
  86 static void sigusr1(void)
  87 {
  88         zlog_rotate();
  89 }
  90
  91 struct quagga_signal_t sharp_signals[] = {
  92         {
  93                 .signal = SIGHUP,
  94                 .handler = &sighup,
  95         },
  96         {
  97                 .signal = SIGUSR1,
  98                 .handler = &sigusr1,
  99         },
 100         {
 101                 .signal = SIGINT,
 102                 .handler = &sigint,
 103         },
 104         {
 105                 .signal = SIGTERM,
 106                 .handler = &sigint,
 107         },
 108 };
 109
 110 #define SHARP_VTY_PORT 2614
 111
 112 static const struct frr_yang_module_info *sharpd_yang_modules[] = {
 113 };
 114
 115 FRR_DAEMON_INFO(sharpd, SHARP, .vty_port = SHARP_VTY_PORT,
 116
 117                 .proghelp = "Implementation of a Sharp of routes daemon.",
 118
 119                 .signals = sharp_signals,
 120                 .n_signals = array_size(sharp_signals),
 121
 122                 .privs = &sharp_privs, .yang_modules = sharpd_yang_modules,
 123                 .n_yang_modules = array_size(sharpd_yang_modules), )
 124
 125 struct sharp_global sg;
 126
 127 static void sharp_global_init(void)
 128 {
 129         memset(&sg, 0, sizeof(sg));
 130 }
 131
 132 int main(int argc, char **argv, char **envp)
 133 {
 134         frr_preinit(&sharpd_di, argc, argv);
 135         frr_opt_add("", longopts, "");
 136
 137         while (1) {
 138                 int opt;
 139
 140                 opt = frr_getopt(argc, argv, NULL);
 141
 142                 if (opt == EOF)
 143                         break;
 144
 145                 switch (opt) {
 146                 case 0:
 147                         break;
 148                 default:
 149                         frr_help_exit(1);
 150                         break;
 151                 }
 152         }
 153
 154         master = frr_init();
 155
 156         sharp_global_init();
 157
 158         nexthop_group_init(NULL, NULL, NULL, NULL);
 159         vrf_init(NULL, NULL, NULL, NULL, NULL);
 160
 161         access_list_init();
 162         route_map_init();
 163
 164         sharp_zebra_init();
 165
 166         /* Get configuration file. */
 167         sharp_vty_init();
 168
 169         frr_config_fork();
 170         frr_run(master);
 171
 172         /* Not reached. */
 173         return 0;
 174 }