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         ZCAP_NET_RAW, ZCAP_BIND, ZCAP_NET_ADMIN,
  55 };
  56
  57 struct zebra_privs_t sharp_privs = {
  58 #if defined(FRR_USER) && defined(FRR_GROUP)
  59         .user = FRR_USER,
  60         .group = FRR_GROUP,
  61 #endif
  62 #if defined(VTY_GROUP)
  63         .vty_group = VTY_GROUP,
  64 #endif
  65         .caps_p = _caps_p,
  66         .cap_num_p = array_size(_caps_p),
  67         .cap_num_i = 0};
  68
  69 struct option longopts[] = {{0}};
  70
  71 /* Master of threads. */
  72 struct thread_master *master;
  73
  74 /* SIGHUP handler. */
  75 static void sighup(void)
  76 {
  77         zlog_info("SIGHUP received");
  78 }
  79
  80 /* SIGINT / SIGTERM handler. */
  81 static void sigint(void)
  82 {
  83         zlog_notice("Terminating on signal");
  84
  85         exit(0);
  86 }
  87
  88 /* SIGUSR1 handler. */
  89 static void sigusr1(void)
  90 {
  91         zlog_rotate();
  92 }
  93
  94 struct quagga_signal_t sharp_signals[] = {
  95         {
  96                 .signal = SIGHUP,
  97                 .handler = &sighup,
  98         },
  99         {
 100                 .signal = SIGUSR1,
 101                 .handler = &sigusr1,
 102         },
 103         {
 104                 .signal = SIGINT,
 105                 .handler = &sigint,
 106         },
 107         {
 108                 .signal = SIGTERM,
 109                 .handler = &sigint,
 110         },
 111 };
 112
 113 #define SHARP_VTY_PORT 2614
 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, )
 123
 124 extern void sharp_vty_init(void);
 125
 126 int main(int argc, char **argv, char **envp)
 127 {
 128         frr_preinit(&sharpd_di, argc, argv);
 129         frr_opt_add("", longopts, "");
 130
 131         while (1) {
 132                 int opt;
 133
 134                 opt = frr_getopt(argc, argv, NULL);
 135
 136                 if (opt == EOF)
 137                         break;
 138
 139                 switch (opt) {
 140                 case 0:
 141                         break;
 142                 default:
 143                         frr_help_exit(1);
 144                         break;
 145                 }
 146         }
 147
 148         master = frr_init();
 149
 150         vrf_init(NULL, NULL, NULL, NULL);
 151
 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 }