staticd/static_main.c

   1 /*
   2  * STATICd - main code
   3  * Copyright (C) 2018 Cumulus Networks, Inc.
   4  *               Donald Sharp
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the Free
   8  * Software Foundation; either version 2 of the License, or (at your option)
   9  * any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14  * more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; see the file COPYING; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20 #include <zebra.h>
  21
  22 #include <lib/version.h>
  23 #include "getopt.h"
  24 #include "thread.h"
  25 #include "command.h"
  26 #include "log.h"
  27 #include "memory.h"
  28 #include "privs.h"
  29 #include "sigevent.h"
  30 #include "libfrr.h"
  31 #include "vrf.h"
  32 #include "nexthop.h"
  33 #include "filter.h"
  34
  35 #include "static_vrf.h"
  36 #include "static_vty.h"
  37 #include "static_routes.h"
  38 #include "static_zebra.h"
  39
  40 char backup_config_file[256];
  41
  42 bool mpls_enabled;
  43
  44 zebra_capabilities_t _caps_p[] = {
  45 };
  46
  47 struct zebra_privs_t static_privs = {
  48 #if defined(FRR_USER) && defined(FRR_GROUP)
  49         .user = FRR_USER,
  50         .group = FRR_GROUP,
  51 #endif
  52 #if defined(VTY_GROUP)
  53         .vty_group = VTY_GROUP,
  54 #endif
  55         .caps_p = _caps_p,
  56         .cap_num_p = array_size(_caps_p),
  57         .cap_num_i = 0};
  58
  59 struct option longopts[] = { { 0 } };
  60
  61 /* Master of threads. */
  62 struct thread_master *master;
  63
  64 /* SIGHUP handler. */
  65 static void sighup(void)
  66 {
  67         zlog_info("SIGHUP received");
  68 }
  69
  70 /* SIGINT / SIGTERM handler. */
  71 static void sigint(void)
  72 {
  73         zlog_notice("Terminating on signal");
  74
  75         exit(0);
  76 }
  77
  78 /* SIGUSR1 handler. */
  79 static void sigusr1(void)
  80 {
  81         zlog_rotate();
  82 }
  83
  84 struct quagga_signal_t static_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 #define STATIC_VTY_PORT 2616
 104
 105 FRR_DAEMON_INFO(staticd, STATIC, .vty_port = STATIC_VTY_PORT,
 106
 107                 .proghelp = "Implementation of STATIC.",
 108
 109                 .signals = static_signals,
 110                 .n_signals = array_size(static_signals),
 111
 112                 .privs = &static_privs,
 113 )
 114
 115 int main(int argc, char **argv, char **envp)
 116 {
 117         frr_preinit(&staticd_di, argc, argv);
 118         frr_opt_add("", longopts, "");
 119
 120         while (1) {
 121                 int opt;
 122
 123                 opt = frr_getopt(argc, argv, NULL);
 124
 125                 if (opt == EOF)
 126                         break;
 127
 128                 switch (opt) {
 129                 case 0:
 130                         break;
 131                 default:
 132                         frr_help_exit(1);
 133                         break;
 134                 }
 135         }
 136
 137         master = frr_init();
 138
 139         access_list_init();
 140         static_vrf_init();
 141
 142         static_zebra_init();
 143         static_vty_init();
 144
 145         snprintf(backup_config_file, sizeof(backup_config_file),
 146                  "%s/zebra.conf", frr_sysconfdir);
 147         staticd_di.backup_config_file = backup_config_file;
 148
 149         frr_config_fork();
 150         frr_run(master);
 151
 152         /* Not reached. */
 153         return 0;
 154 }