/* RIP debug routines
 * Copyright (C) 1999 Kunihiro Ishiguro <kunihiro@zebra.org>
 *
 * This file is part of GNU Zebra.
 *
 * GNU Zebra is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2, or (at your option) any
 * later version.
 *
 * GNU Zebra is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; see the file COPYING; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include <zebra.h>
#include "command.h"
#include "ripd/rip_debug.h"

/* For debug statement. */
unsigned long rip_debug_event = 0;
unsigned long rip_debug_packet = 0;
unsigned long rip_debug_zebra = 0;

DEFUN (show_debugging_rip,
       show_debugging_rip_cmd,
       "show debugging rip",
       SHOW_STR
       DEBUG_STR
       RIP_STR)
{
  vty_out (vty, "RIP debugging status:%s", VTY_NEWLINE);

  if (IS_RIP_DEBUG_EVENT)
    vty_out (vty, "  RIP event debugging is on%s", VTY_NEWLINE);

  if (IS_RIP_DEBUG_PACKET)
    {
      if (IS_RIP_DEBUG_SEND && IS_RIP_DEBUG_RECV)
	{
	  vty_out (vty, "  RIP packet debugging is on%s",
		   VTY_NEWLINE);
	}
      else
	{
	  if (IS_RIP_DEBUG_SEND)
	    vty_out (vty, "  RIP packet send debugging is on%s",
		     VTY_NEWLINE);
	  else
	    vty_out (vty, "  RIP packet receive debugging is on%s",
		     VTY_NEWLINE);
	}
    }

  if (IS_RIP_DEBUG_ZEBRA)
    vty_out (vty, "  RIP zebra debugging is on%s", VTY_NEWLINE);

  return CMD_SUCCESS;
}

DEFUN (debug_rip_events,
       debug_rip_events_cmd,
       "debug rip events",
       DEBUG_STR
       RIP_STR
       "RIP events\n")
{
  rip_debug_event = RIP_DEBUG_EVENT;
  return CMD_WARNING;
}

DEFUN (debug_rip_packet,
       debug_rip_packet_cmd,
       "debug rip packet",
       DEBUG_STR
       RIP_STR
       "RIP packet\n")
{
  rip_debug_packet = RIP_DEBUG_PACKET;
  rip_debug_packet |= RIP_DEBUG_SEND;
  rip_debug_packet |= RIP_DEBUG_RECV;
  return CMD_SUCCESS;
}

DEFUN (debug_rip_packet_direct,
       debug_rip_packet_direct_cmd,
       "debug rip packet <recv|send>",
       DEBUG_STR
       RIP_STR
       "RIP packet\n"
       "RIP receive packet\n"
       "RIP send packet\n")
{
  int idx_recv_send = 3;
  rip_debug_packet |= RIP_DEBUG_PACKET;
  if (strncmp ("send", argv[idx_recv_send]->arg, strlen (argv[idx_recv_send]->arg)) == 0)
    rip_debug_packet |= RIP_DEBUG_SEND;
  if (strncmp ("recv", argv[idx_recv_send]->arg, strlen (argv[idx_recv_send]->arg)) == 0)
    rip_debug_packet |= RIP_DEBUG_RECV;
  return CMD_SUCCESS;
}

DEFUN (debug_rip_zebra,
       debug_rip_zebra_cmd,
       "debug rip zebra",
       DEBUG_STR
       RIP_STR
       "RIP and ZEBRA communication\n")
{
  rip_debug_zebra = RIP_DEBUG_ZEBRA;
  return CMD_WARNING;
}

DEFUN (no_debug_rip_events,
       no_debug_rip_events_cmd,
       "no debug rip events",
       NO_STR
       DEBUG_STR
       RIP_STR
       "RIP events\n")
{
  rip_debug_event = 0;
  return CMD_SUCCESS;
}

DEFUN (no_debug_rip_packet,
       no_debug_rip_packet_cmd,
       "no debug rip packet",
       NO_STR
       DEBUG_STR
       RIP_STR
       "RIP packet\n")
{
  rip_debug_packet = 0;
  return CMD_SUCCESS;
}

DEFUN (no_debug_rip_packet_direct,
       no_debug_rip_packet_direct_cmd,
       "no debug rip packet <recv|send>",
       NO_STR
       DEBUG_STR
       RIP_STR
       "RIP packet\n"
       "RIP option set for receive packet\n"
       "RIP option set for send packet\n")
{
  int idx_recv_send = 4;
  if (strncmp ("send", argv[idx_recv_send]->arg, strlen (argv[idx_recv_send]->arg)) == 0)
    {
      if (IS_RIP_DEBUG_RECV)
       rip_debug_packet &= ~RIP_DEBUG_SEND;
      else
       rip_debug_packet = 0;
    }
  else if (strncmp ("recv", argv[idx_recv_send]->arg, strlen (argv[idx_recv_send]->arg)) == 0)
    {
      if (IS_RIP_DEBUG_SEND)
       rip_debug_packet &= ~RIP_DEBUG_RECV;
      else
       rip_debug_packet = 0;
    }
  return CMD_SUCCESS;
}

DEFUN (no_debug_rip_zebra,
       no_debug_rip_zebra_cmd,
       "no debug rip zebra",
       NO_STR
       DEBUG_STR
       RIP_STR
       "RIP and ZEBRA communication\n")
{
  rip_debug_zebra = 0;
  return CMD_WARNING;
}

/* Debug node. */
static struct cmd_node debug_node =
{
  DEBUG_NODE,
  "",				/* Debug node has no interface. */
  1
};

static int
config_write_debug (struct vty *vty)
{
  int write = 0;

  if (IS_RIP_DEBUG_EVENT)
    {
      vty_out (vty, "debug rip events%s", VTY_NEWLINE);
      write++;
    }
  if (IS_RIP_DEBUG_PACKET)
    {
      if (IS_RIP_DEBUG_SEND && IS_RIP_DEBUG_RECV)
	{
	  vty_out (vty, "debug rip packet%s",
		   VTY_NEWLINE);
	  write++;
	}
      else
	{
	  if (IS_RIP_DEBUG_SEND)
	    vty_out (vty, "debug rip packet send%s",
		     VTY_NEWLINE);
	  else
	    vty_out (vty, "debug rip packet recv%s",
		     VTY_NEWLINE);
	  write++;
	}
    }
  if (IS_RIP_DEBUG_ZEBRA)
    {
      vty_out (vty, "debug rip zebra%s", VTY_NEWLINE);
      write++;
    }
  return write;
}

void
rip_debug_reset (void)
{
  rip_debug_event = 0;
  rip_debug_packet = 0;
  rip_debug_zebra = 0;
}

void
rip_debug_init (void)
{
  rip_debug_event = 0;
  rip_debug_packet = 0;
  rip_debug_zebra = 0;

  install_node (&debug_node, config_write_debug);

  install_element (ENABLE_NODE, &show_debugging_rip_cmd);
  install_element (ENABLE_NODE, &debug_rip_events_cmd);
  install_element (ENABLE_NODE, &debug_rip_packet_cmd);
  install_element (ENABLE_NODE, &debug_rip_packet_direct_cmd);
  install_element (ENABLE_NODE, &debug_rip_zebra_cmd);
  install_element (ENABLE_NODE, &no_debug_rip_events_cmd);
  install_element (ENABLE_NODE, &no_debug_rip_packet_cmd);
  install_element (ENABLE_NODE, &no_debug_rip_packet_direct_cmd);
  install_element (ENABLE_NODE, &no_debug_rip_zebra_cmd);

  install_element (CONFIG_NODE, &debug_rip_events_cmd);
  install_element (CONFIG_NODE, &debug_rip_packet_cmd);
  install_element (CONFIG_NODE, &debug_rip_packet_direct_cmd);
  install_element (CONFIG_NODE, &debug_rip_zebra_cmd);
  install_element (CONFIG_NODE, &no_debug_rip_events_cmd);
  install_element (CONFIG_NODE, &no_debug_rip_packet_cmd);
  install_element (CONFIG_NODE, &no_debug_rip_packet_direct_cmd);
  install_element (CONFIG_NODE, &no_debug_rip_zebra_cmd);
}