command.c

大名鼎鼎的路由器源码。程序分ZEBRA、OSPFRIP等3个包。程序框架采用一个路由协议一个进程的方式

	    if ((*node->func) (vty))
	      vty_out (vty, "!%s", VTY_NEWLINE);
	  }
    }
  else
    {
      vty_out (vty, "%sCurrent configuration:%s", VTY_NEWLINE,
	       VTY_NEWLINE);
      vty_out (vty, "!%s", VTY_NEWLINE);

      for (i = 0; i < vector_max (cmdvec); i++)
	if ((node = vector_slot (cmdvec, i)) && node->func)
	  {
	    if ((*node->func) (vty))
	      vty_out (vty, "!%s", VTY_NEWLINE);
	  }
      vty_out (vty, "end%s",VTY_NEWLINE);
    }
  return CMD_SUCCESS;
}

/* Write current configuration into the terminal. */
ALIAS (config_write_terminal,
       show_running_config_cmd,
       "show running-config",
       SHOW_STR
       "running configuration\n");

/* Write startup configuration into the terminal. */
DEFUN (show_startup_config,
       show_startup_config_cmd,
       "show startup-config",
       SHOW_STR
       "Contentes of startup configuration\n")
{
  char buf[BUFSIZ];
  FILE *confp;

  confp = fopen (host.config, "r");
  if (confp == NULL)
    {
      vty_out (vty, "Can't open configuration file [%s]%s",
	       host.config, VTY_NEWLINE);
      return CMD_WARNING;
    }

  while (fgets (buf, BUFSIZ, confp))
    {
      char *cp = buf;

      while (*cp != '\r' && *cp != '\n' && *cp != '\0')
	cp++;
      *cp = '\0';

      vty_out (vty, "%s%s", buf, VTY_NEWLINE);
    }

  fclose (confp);

  return CMD_SUCCESS;
}

/* Hostname configuration */
DEFUN (config_hostname, 
       hostname_cmd,
       "hostname WORD",
       "Set system's network name\n"
       "This system's network name\n")
{
  if (!isalpha((int) *argv[0]))
    {
      vty_out (vty, "Please specify string starting with alphabet%s", VTY_NEWLINE);
      return CMD_WARNING;
    }

  if (host.name)
    XFREE (0, host.name);
    
  host.name = strdup (argv[0]);
  return CMD_SUCCESS;
}

DEFUN (config_no_hostname, 
       no_hostname_cmd,
       "no hostname [HOSTNAME]",
       NO_STR
       "Reset system's network name\n"
       "Host name of this router\n")
{
  if (host.name)
    XFREE (0, host.name);
  host.name = NULL;
  return CMD_SUCCESS;
}

/* VTY interface password set. */
DEFUN (config_password, password_cmd,
       "password (8|) WORD",
       "Assign the terminal connection password\n"
       "Specifies a HIDDEN password will follow\n"
       "dummy string \n"
       "The HIDDEN line password string\n")
{
  /* Argument check. */
  if (argc == 0)
    {
      vty_out (vty, "Please specify password.%s", VTY_NEWLINE);
      return CMD_WARNING;
    }

  if (argc == 2)
    {
      if (*argv[0] == '8')
	{
	  if (host.password)
	    XFREE (0, host.password);
	  host.password = NULL;
	  if (host.password_encrypt)
	    XFREE (0, host.password_encrypt);
	  host.password_encrypt = XSTRDUP (0, strdup (argv[1]));
	  return CMD_SUCCESS;
	}
      else
	{
	  vty_out (vty, "Unknown encryption type.%s", VTY_NEWLINE);
	  return CMD_WARNING;
	}
    }

  if (!isalnum ((int) *argv[0]))
    {
      vty_out (vty, 
	       "Please specify string starting with alphanumeric%s", VTY_NEWLINE);
      return CMD_WARNING;
    }

  if (host.password)
    XFREE (0, host.password);
  host.password = NULL;

  if (host.encrypt)
    {
      if (host.password_encrypt)
	XFREE (0, host.password_encrypt);
      host.password_encrypt = XSTRDUP (0, zencrypt (argv[0]));
    }
  else
    host.password = XSTRDUP (0, argv[0]);

  return CMD_SUCCESS;
}

ALIAS (config_password, password_text_cmd,
       "password LINE",
       "Assign the terminal connection password\n"
       "The UNENCRYPTED (cleartext) line password\n");

/* VTY enable password set. */
DEFUN (config_enable_password, enable_password_cmd,
       "enable password (8|) WORD",
       "Modify enable password parameters\n"
       "Assign the privileged level password\n"
       "Specifies a HIDDEN password will follow\n"
       "dummy string \n"
       "The HIDDEN 'enable' password string\n")
{
  /* Argument check. */
  if (argc == 0)
    {
      vty_out (vty, "Please specify password.%s", VTY_NEWLINE);
      return CMD_WARNING;
    }

  /* Crypt type is specified. */
  if (argc == 2)
    {
      if (*argv[0] == '8')
	{
	  if (host.enable)
	    XFREE (0, host.enable);
	  host.enable = NULL;

	  if (host.enable_encrypt)
	    XFREE (0, host.enable_encrypt);
	  host.enable_encrypt = XSTRDUP (0, argv[1]);

	  return CMD_SUCCESS;
	}
      else
	{
	  vty_out (vty, "Unknown encryption type.%s", VTY_NEWLINE);
	  return CMD_WARNING;
	}
    }

  if (!isalnum ((int) *argv[0]))
    {
      vty_out (vty, 
	       "Please specify string starting with alphanumeric%s", VTY_NEWLINE);
      return CMD_WARNING;
    }

  if (host.enable)
    XFREE (0, host.enable);
  host.enable = NULL;

  /* Plain password input. */
  if (host.encrypt)
    {
      if (host.enable_encrypt)
	XFREE (0, host.enable_encrypt);
      host.enable_encrypt = XSTRDUP (0, zencrypt (argv[0]));
    }
  else
    host.enable = XSTRDUP (0, argv[0]);

  return CMD_SUCCESS;
}

ALIAS (config_enable_password,
       enable_password_text_cmd,
       "enable password LINE",
       "Modify enable password parameters\n"
       "Assign the privileged level password\n"
       "The UNENCRYPTED (cleartext) 'enable' password\n");

/* VTY enable password delete. */
DEFUN (no_config_enable_password, no_enable_password_cmd,
       "no enable password",
       NO_STR
       "Modify enable password parameters\n"
       "Assign the privileged level password\n")
{
  if (host.enable)
    XFREE (0, host.enable);
  host.enable = NULL;

  if (host.enable_encrypt)
    XFREE (0, host.enable_encrypt);
  host.enable_encrypt = NULL;

  return CMD_SUCCESS;
}
	
DEFUN (service_password_encrypt,
       service_password_encrypt_cmd,
       "service password-encryption",
       "Set up miscellaneous service\n"
       "Enable encrypted passwords\n")
{
  if (host.encrypt)
    return CMD_SUCCESS;

  host.encrypt = 1;

  if (host.password)
    {
      if (host.password_encrypt)
	XFREE (0, host.password_encrypt);
      host.password_encrypt = XSTRDUP (0, zencrypt (host.password));
    }
  if (host.enable)
    {
      if (host.enable_encrypt)
	XFREE (0, host.enable_encrypt);
      host.enable_encrypt = XSTRDUP (0, zencrypt (host.enable));
    }

  return CMD_SUCCESS;
}

DEFUN (no_service_password_encrypt,
       no_service_password_encrypt_cmd,
       "no service password-encryption",
       NO_STR
       "Set up miscellaneous service\n"
       "Enable encrypted passwords\n")
{
  if (! host.encrypt)
    return CMD_SUCCESS;

  host.encrypt = 0;

  if (host.password_encrypt)
    XFREE (0, host.password_encrypt);
  host.password_encrypt = NULL;

  if (host.enable_encrypt)
    XFREE (0, host.enable_encrypt);
  host.enable_encrypt = NULL;

  return CMD_SUCCESS;
}

DEFUN (config_terminal_length, config_terminal_length_cmd,
       "terminal length <0-512>",
       "Set terminal line parameters\n"
       "Set number of lines on a screen\n"
       "Number of lines on screen (0 for no pausing)\n")
{
  int lines;
  char *endptr = NULL;

  lines = strtol (argv[0], &endptr, 10);
  if (lines < 0 || lines > 512 || *endptr != '\0')
    {
      vty_out (vty, "length is malformed%s", VTY_NEWLINE);
      return CMD_WARNING;
    }
  vty->lines = lines;

  return CMD_SUCCESS;
}

DEFUN (config_terminal_no_length, config_terminal_no_length_cmd,
       "terminal no length",
       "Set terminal line parameters\n"
       NO_STR
       "Set number of lines on a screen\n")
{
  vty->lines = -1;
  return CMD_SUCCESS;
}

DEFUN (service_terminal_length, service_terminal_length_cmd,
       "service terminal-length <0-512>",
       "Set up miscellaneous service\n"
       "System wide terminal length configuration\n"
       "Number of lines of VTY (0 means no line control)\n")
{
  int lines;
  char *endptr = NULL;

  lines = strtol (argv[0], &endptr, 10);
  if (lines < 0 || lines > 512 || *endptr != '\0')
    {
      vty_out (vty, "length is malformed%s", VTY_NEWLINE);
      return CMD_WARNING;
    }
  host.lines = lines;

  return CMD_SUCCESS;
}

DEFUN (no_service_terminal_length, no_service_terminal_length_cmd,
       "no service terminal-length [<0-512>]",
       NO_STR
       "Set up miscellaneous service\n"
       "System wide terminal length configuration\n"
       "Number of lines of VTY (0 means no line control)\n")
{
  host.lines = -1;
  return CMD_SUCCESS;
}

DEFUN (config_log_stdout,
       config_log_stdout_cmd,
       "log stdout",
       "Logging control\n"
       "Logging goes to stdout\n")
{
  zlog_set_flag (NULL, ZLOG_STDOUT);
  host.log_stdout = 1;
  return CMD_SUCCESS;
}

DEFUN (no_config_log_stdout,
       no_config_log_stdout_cmd,
       "no log stdout",
       NO_STR
       "Logging control\n"
       "Cancel logging to stdout\n")
{
  zlog_reset_flag (NULL, ZLOG_STDOUT);
  host.log_stdout = 0;
  return CMD_SUCCESS;
}

DEFUN (config_log_file,
       config_log_file_cmd,
       "log file FILENAME",
       "Logging control\n"
       "Logging to file\n"
       "Logging filename\n")
{
  int ret;
  char *cwd;
  char *fullpath;

  /* Path detection. */
  if (! IS_DIRECTORY_SEP (*argv[0]))
    {
      cwd = getcwd (NULL, MAXPATHLEN);
      fullpath = XMALLOC (MTYPE_TMP,
			  strlen (cwd) + strlen (argv[0]) + 2);
      sprintf (fullpath, "%s/%s", cwd, argv[0]);
    }
  else
    fullpath = argv[0];

  ret = zlog_set_file (NULL, ZLOG_FILE, fullpath);

  if (!ret)
    {
      vty_out (vty, "can't open logfile %s\n", argv[0]);
      return CMD_WARNING;
    }

  if (host.logfile)
    XFREE (MTYPE_TMP, host.logfile);

  host.logfile = strdup (argv[0]);

  return CMD_SUCCESS;
}

DEFUN (no_config_log_file,
       no_config_log_file_cmd,
       "no log file [FILENAME]",
       NO_STR
       "Logging control\n"
       "Cancel logging to file\n"
       "Logging file name\n")
{
  zlog_reset_file (NULL);

  if (host.logfile)
    XFREE (MTYPE_TMP, host.logfile);

  host.logfile = NULL;

  return CMD_SUCCESS;
}

DEFUN (config_log_syslog,
       config_log_syslog_cmd,
       "log syslog",
       "Logging control\n"
       "Logging goes to syslog\n")
{
  zlog_set_flag (NULL, ZLOG_SYSLOG);
  host.log_syslog = 1;
  zlog_default->facility = LOG_DAEMON;
  return CMD_SUCCESS;
}

DEFUN (config_log_syslog_facility,
       config_log_syslog_facility_cmd,
       "log syslog facility (kern|user|mail|daemon|auth|syslog|lpr|news|uucp|cron|local0|local1|local2|local3|local4|local5|local6|local7)",
       "Logging control\n"
       "Logging goes to syslog\n"
       "Facility parameter for syslog messages\n"
       "Kernel\n"
       "User process\n"
       "Mail system\n"
       "System daemons\n"
       "Authorization system\n"
       "Syslog itself\n"
       "Line printer system\n"
       "USENET news\n"
       "Unix-to-Unix copy system\n"
       "Cron/at facility\n"
       "Local use\n"
       "Local use\n"
       "Local use\n"
       "Local use\n"
       "Local use\n"
       "Local use\n"
       "Local use\n"
       "Local use\n")
{
  int facility = LOG_DAEMON;

  zlog_set_flag (NULL, ZLOG_SYSLOG);
  host.log_syslog = 1;

  if (strncmp (argv[0], "kern", 1) == 0)
    facility = LOG_KERN;
  else if (strncmp (argv[0], "user", 2) == 0)
    facility = LOG_USER;
  else if (strncmp (argv[0], "mail", 1) == 0)
    facility = LOG_MAIL;
  else if (strncmp (argv[0], "daemon", 1) == 0)
    facility = LOG_DAEMON;
  else if (strncmp (argv[0], "auth", 1) == 0)
    facility = LOG_AUTH;
  else if (strncmp (argv[0], "syslog", 1) == 0)
    facility = LOG_SYSLOG;
  else if (strncmp (argv[0], "lpr", 2) == 0)
    facility = LOG_LPR;
  else if (strncmp (argv[0], "news", 1) == 0)
    facility = LOG_NEWS;
  else if (strncmp (argv[0], "uucp", 2) == 0)
    facility = LOG_UUCP;
  else if (strncmp (argv[0], "cron", 1) == 0)
    facility = LOG_CRON;
  else if (strncmp (argv[0], "local0", 6) == 0)
    facility = LOG_LOCAL0;
  else if (strncmp (argv[0], "local1", 6) == 0)
    facility = LOG_LOCAL1;
  else if (strncmp (argv[0], "local2", 6) == 0)
    facility = LOG_LOCAL2;
  else if (strncmp (argv[0], "local3", 6) == 0)
    facility = LOG_LOCAL3;
  else if (strncmp (argv[0], "local4", 6) == 0)
    facility = LOG_LOCAL4;
  else if (strncmp (argv[0], "local5", 6) == 0)
    facility = LOG_LOCAL5;
  else if (strncmp (argv[0], "local6", 6) == 0)
    facility = LOG_LOCAL6;
  else if (strncmp (argv[0], "local7", 6) == 0)
    facility = LOG_LOCAL7;

  zlog_default->facility = facility;

  return CMD_SUCCESS;
}

DEFUN (no_config_log_syslog,
       no_config_log_syslog_cmd,
       "no log syslog",
       NO_STR
       "Logging control\n"
       "Cancel logging to syslog\n")
{
  zlog_reset_flag (NULL, ZLOG_SYSLOG);
  host.log_syslog = 0;
  zlog_default->facility = LOG_DAEMON;
  return CMD_SUCCESS;
}

ALIAS (no_config_log_syslog,
       no_config_log_syslog_facility_cmd,
       "no log syslog facility (kern|user|mail|daemon|auth|syslog|lpr|news|uucp|cron|local0|local1|local2|local3|local4|local5|local6|local7)",
       NO_STR
       "Logging control\n"
       "Logging goes to syslog\n"
       "Facility parameter for syslog messages\n"
       "Kernel\n"
       "User process\n"
       "Mail system\n"
       "System daemons\n"
       "Authorization system\n"
       "Syslog itself\n"
       "Line printer system\n"
       "USENET news\n"
       "Unix-to-Unix copy system\n"
       "Cron/at facility\n"
       "Local use\n"
       "Local use\n"
       "Local use\n"
       "Local use\n"
       "Local use\n"
       "Local use\n"
       "Local use\n"
       "Local use\n");

DEFUN (config_log_trap,
       config_log_trap_cmd,
       "log trap (emergencies|alerts|critical|errors|warnings|notifications|informational|debugging)",
       "Logging control\n"
       "Limit logging to specifed level\n")
{
  int new_level ;
  
  for ( new_level = 0 ; zlog_priority [new_level] != NULL ; new_level ++ )
    {
    if ( strcmp ( argv[0], zlog_priority [new_level] ) == 0 )
      /* found new logging level */
      {
      zlog_default->maskpri = new_level;
      return CMD_SUCCESS;
      }
    }
  return CMD_ERR_NO_MATCH;
}

DEFUN (no_config_log_trap,
       no_config_log_trap_cmd,
       "no log trap",
       NO_STR
       "Logging control\n"
       "Permit all logging information\n")
{
  zlog_default->maskpri = LOG_DEBUG;
  return CMD_SUCCESS;
}

DEFUN (config_log_record_priority,
       config_log_record_priority_cmd,
       "log record-priority",
       "Logging control\n"
       "Log the priority of the message within the message\n")
{
  zlog_default->record_priority = 1 ;
  return CMD_SUCCESS;
}

DEFUN (no_config_log_record_priority,
       no_config_log_record_priority_cmd,
       "no log record-priority",
       NO_STR
       "Logging control\n"
       "Do not log the priority of the message within the message\