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
  46 #include "sharp_zebra.h"
  47 #include "sharp_vty.h"
  48
  49 uint32_t total_routes = 0;
  50 uint32_t installed_routes = 0;
  51 uint32_t removed_routes = 0;
  52
  53 zebra_capabilities_t _caps_p[] = {
  54 };
  55
  56 struct zebra_privs_t sharp_privs = {
  57 #if defined(FRR_USER) && defined(FRR_GROUP)
  58         .user = FRR_USER,
  59         .group = FRR_GROUP,
  60 #endif
  61 #if defined(VTY_GROUP)
  62         .vty_group = VTY_GROUP,
  63 #endif
  64         .caps_p = _caps_p,
  65         .cap_num_p = array_size(_caps_p),
  66         .cap_num_i = 0};
  67
  68 struct option longopts[] = {{0}};
  69
  70 /* Master of threads. */
  71 struct thread_master *master;
  72
  73 /* SIGHUP handler. */
  74 static void sighup(void)
  75 {
  76         zlog_info("SIGHUP received");
  77 }
  78
  79 /* SIGINT / SIGTERM handler. */
  80 static void sigint(void)
  81 {
  82         zlog_notice("Terminating on signal");
  83
  84         exit(0);
  85 }
  86
  87 /* SIGUSR1 handler. */
  88 static void sigusr1(void)
  89 {
  90         zlog_rotate();
  91 }
  92
  93 struct quagga_signal_t sharp_signals[] = {
  94         {
  95                 .signal = SIGHUP,
  96                 .handler = &sighup,
  97         },
  98         {
  99                 .signal = SIGUSR1,
 100                 .handler = &sigusr1,
 101         },
 102         {
 103                 .signal = SIGINT,
 104                 .handler = &sigint,
 105         },
 106         {
 107                 .signal = SIGTERM,
 108                 .handler = &sigint,
 109         },
 110 };
 111
 112 #define SHARP_VTY_PORT 2614
 113
 114 FRR_DAEMON_INFO(sharpd, SHARP, .vty_port = SHARP_VTY_PORT,
 115
 116                 .proghelp = "Implementation of a Sharp of routes daemon.",
 117
 118                 .signals = sharp_signals,
 119                 .n_signals = array_size(sharp_signals),
 120
 121                 .privs = &sharp_privs, )
 122
 123 extern void sharp_vty_init(void);
 124
 125 int main(int argc, char **argv, char **envp)
 126 {
 127         frr_preinit(&sharpd_di, argc, argv);
 128         frr_opt_add("", longopts, "");
 129
 130         while (1) {
 131                 int opt;
 132
 133                 opt = frr_getopt(argc, argv, NULL);
 134
 135                 if (opt == EOF)
 136                         break;
 137
 138                 switch (opt) {
 139                 case 0:
 140                         break;
 141                 default:
 142                         frr_help_exit(1);
 143                         break;
 144                 }
 145         }
 146
 147         master = frr_init();
 148
 149         vrf_init(NULL, NULL, NULL, NULL, NULL);
 150
 151         access_list_init();
 152         route_map_init();
 153
 154         sharp_zebra_init();
 155
 156         /* Get configuration file. */
 157         sharp_vty_init();
 158
 159         frr_config_fork();
 160         frr_run(master);
 161
 162         /* Not reached. */
 163         return 0;
 164 }