zebra/test_main.c

   1 /* main routine.
   2  * Copyright (C) 1997, 98 Kunihiro Ishiguro
   3  *
   4  * GNU Zebra is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License as published by the
   6  * Free Software Foundation; either version 2, or (at your option) any
   7  * later version.
   8  *
   9  * GNU Zebra is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with GNU Zebra; see the file COPYING.  If not, write to the Free
  16  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  17  * 02111-1307, USA.
  18  */
  19
  20 #include <zebra.h>
  21
  22 #include <lib/version.h>
  23 #include "getopt.h"
  24 #include "command.h"
  25 #include "thread.h"
  26 #include "filter.h"
  27 #include "memory.h"
  28 #include "prefix.h"
  29 #include "log.h"
  30 #include "privs.h"
  31 #include "sigevent.h"
  32
  33 #include "zebra/rib.h"
  34 #include "zebra/zserv.h"
  35 #include "zebra/debug.h"
  36 #include "zebra/router-id.h"
  37 #include "zebra/interface.h"
  38
  39 /* Zebra instance */
  40 struct zebra_t zebrad =
  41 {
  42   .rtm_table_default = 0,
  43 };
  44
  45 /* process id. */
  46 pid_t pid;
  47
  48 /* zebra_rib's workqueue hold time. Private export for use by test code only */
  49 extern int rib_process_hold_time;
  50
  51 /* Pacify zclient.o in libzebra, which expects this variable. */
  52 struct thread_master *master;
  53
  54 /* Command line options. */
  55 struct option longopts[] =
  56 {
  57   { "batch",       no_argument,       NULL, 'b'},
  58   { "daemon",      no_argument,       NULL, 'd'},
  59   { "log_mode",    no_argument,       NULL, 'l'},
  60   { "config_file", required_argument, NULL, 'f'},
  61   { "help",        no_argument,       NULL, 'h'},
  62   { "vty_addr",    required_argument, NULL, 'A'},
  63   { "vty_port",    required_argument, NULL, 'P'},
  64   { "version",     no_argument,       NULL, 'v'},
  65   { "rib_hold",    required_argument, NULL, 'r'},
  66   { 0 }
  67 };
  68
  69 zebra_capabilities_t _caps_p [] =
  70 {
  71   ZCAP_NET_ADMIN,
  72   ZCAP_SYS_ADMIN,
  73   ZCAP_NET_RAW,
  74 };
  75
  76 /* Default configuration file path. */
  77 char config_default[] = SYSCONFDIR DEFAULT_CONFIG_FILE;
  78
  79 /* Process ID saved for use by init system */
  80 const char *pid_file = PATH_ZEBRA_PID;
  81
  82 /* Help information display. */
  83 static void
  84 usage (char *progname, int status)
  85 {
  86   if (status != 0)
  87     fprintf (stderr, "Try `%s --help' for more information.\n", progname);
  88   else
  89     {
  90       printf ("Usage : %s [OPTION...]\n\n"\
  91               "Daemon which manages kernel routing table management and "\
  92               "redistribution between different routing protocols.\n\n"\
  93               "-b, --batch        Runs in batch mode\n"\
  94               "-d, --daemon       Runs in daemon mode\n"\
  95               "-f, --config_file  Set configuration file name\n"\
  96               "-l, --log_mode     Set verbose log mode flag\n"\
  97               "-A, --vty_addr     Set vty's bind address\n"\
  98               "-P, --vty_port     Set vty's port number\n"\
  99               "-r, --rib_hold     Set rib-queue hold time\n"\
 100               "-v, --version      Print program version\n"\
 101               "-h, --help         Display this help and exit\n"\
 102               "\n"\
 103               "Report bugs to %s\n", progname, ZEBRA_BUG_ADDRESS);
 104     }
 105
 106   exit (status);
 107 }
 108 \f
 109 static unsigned int test_ifindex = 0;
 110
 111 /* testrib commands */
 112 DEFUN (test_interface_state,
 113        test_interface_state_cmd,
 114        "state (up|down)",
 115        "configure interface\n"
 116        "up\n"
 117        "down\n")
 118 {
 119   struct interface *ifp;
 120   if (argc < 1)
 121     return CMD_WARNING;
 122
 123   ifp = vty->index;
 124   if (ifp->ifindex == IFINDEX_INTERNAL)
 125     {
 126       ifp->ifindex = ++test_ifindex;
 127       ifp->mtu = 1500;
 128       ifp->flags = IFF_BROADCAST|IFF_MULTICAST;
 129     }
 130
 131   switch (argv[0][0])
 132     {
 133       case 'u':
 134         SET_FLAG (ifp->flags, IFF_UP);
 135         if_add_update (ifp);
 136         printf ("up\n");
 137         break;
 138       case 'd':
 139         UNSET_FLAG (ifp->flags, IFF_UP);
 140         if_delete_update (ifp);
 141         printf ("down\n");
 142         break;
 143       default:
 144         return CMD_WARNING;
 145     }
 146   return CMD_SUCCESS;
 147 }
 148
 149 static void
 150 test_cmd_init (void)
 151 {
 152   install_element (INTERFACE_NODE, &test_interface_state_cmd);
 153 }
 154 \f
 155 /* SIGHUP handler. */
 156 static void
 157 sighup (void)
 158 {
 159   zlog_info ("SIGHUP received");
 160
 161   /* Reload of config file. */
 162   ;
 163 }
 164
 165 /* SIGINT handler. */
 166 static void
 167 sigint (void)
 168 {
 169   zlog_notice ("Terminating on signal");
 170
 171   exit (0);
 172 }
 173
 174 /* SIGUSR1 handler. */
 175 static void
 176 sigusr1 (void)
 177 {
 178   zlog_rotate (NULL);
 179 }
 180
 181 struct quagga_signal_t zebra_signals[] =
 182 {
 183   {
 184     .signal = SIGHUP,
 185     .handler = &sighup,
 186   },
 187   {
 188     .signal = SIGUSR1,
 189     .handler = &sigusr1,
 190   },
 191   {
 192     .signal = SIGINT,
 193     .handler = &sigint,
 194   },
 195   {
 196     .signal = SIGTERM,
 197     .handler = &sigint,
 198   },
 199 };
 200 \f
 201 /* Main startup routine. */
 202 int
 203 main (int argc, char **argv)
 204 {
 205   char *p;
 206   char *vty_addr = NULL;
 207   int vty_port = 0;
 208   int batch_mode = 0;
 209   int daemon_mode = 0;
 210   char *config_file = NULL;
 211   char *progname;
 212   struct thread thread;
 213
 214   /* Set umask before anything for security */
 215   umask (0027);
 216
 217   /* preserve my name */
 218   progname = ((p = strrchr (argv[0], '/')) ? ++p : argv[0]);
 219
 220   zlog_default = openzlog (progname, ZLOG_ZEBRA,
 221                            LOG_CONS|LOG_NDELAY|LOG_PID, LOG_DAEMON);
 222
 223   while (1)
 224     {
 225       int opt;
 226
 227       opt = getopt_long (argc, argv, "bdlf:hA:P:r:v", longopts, 0);
 228
 229       if (opt == EOF)
 230         break;
 231
 232       switch (opt)
 233         {
 234         case 0:
 235           break;
 236         case 'b':
 237           batch_mode = 1;
 238         case 'd':
 239           daemon_mode = 1;
 240           break;
 241         case 'l':
 242           /* log_mode = 1; */
 243           break;
 244         case 'f':
 245           config_file = optarg;
 246           break;
 247         case 'A':
 248           vty_addr = optarg;
 249           break;
 250         case 'P':
 251           /* Deal with atoi() returning 0 on failure, and zebra not
 252              listening on zebra port... */
 253           if (strcmp(optarg, "0") == 0)
 254             {
 255               vty_port = 0;
 256               break;
 257             }
 258           vty_port = atoi (optarg);
 259           break;
 260         case 'r':
 261           rib_process_hold_time = atoi(optarg);
 262           break;
 263         case 'v':
 264           print_version (progname);
 265           exit (0);
 266           break;
 267         case 'h':
 268           usage (progname, 0);
 269           break;
 270         default:
 271           usage (progname, 1);
 272           break;
 273         }
 274     }
 275
 276   /* port and conf file mandatory */
 277   if (!vty_port || !config_file)
 278     usage (progname, 1);
 279
 280   /* Make master thread emulator. */
 281   zebrad.master = thread_master_create ();
 282
 283   /* Vty related initialize. */
 284   signal_init (zebrad.master, Q_SIGC(zebra_signals), zebra_signals);
 285   cmd_init (1);
 286   vty_init (zebrad.master);
 287   memory_init ();
 288   if_init();
 289   zebra_debug_init ();
 290   zebra_if_init ();
 291   test_cmd_init ();
 292
 293   /* Zebra related initialize. */
 294   rib_init ();
 295   access_list_init ();
 296
 297   /* Make kernel routing socket. */
 298   kernel_init ();
 299   route_read ();
 300   zebra_vty_init();
 301
 302   /* Sort VTY commands. */
 303   sort_node ();
 304
 305   /* Configuration file read*/
 306   vty_read_config (config_file, config_default);
 307
 308   /* Clean up rib. */
 309   rib_weed_tables ();
 310
 311   /* Exit when zebra is working in batch mode. */
 312   if (batch_mode)
 313     exit (0);
 314
 315   /* Daemonize. */
 316   if (daemon_mode)
 317     daemon (0, 0);
 318
 319   /* Needed for BSD routing socket. */
 320   pid = getpid ();
 321
 322   /* Make vty server socket. */
 323   vty_serv_sock (vty_addr, vty_port, "/tmp/test_zebra");
 324
 325   /* Print banner. */
 326   zlog_notice ("Zebra %s starting: vty@%d", QUAGGA_VERSION, vty_port);
 327
 328   while (thread_fetch (zebrad.master, &thread))
 329     thread_call (&thread);
 330
 331   /* Not reached... */
 332   return 0;
 333 }