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/* 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_NOSH (show_debugging_rip,
	    show_debugging_rip_cmd,
	    "show debugging [rip]",
	    SHOW_STR
	    DEBUG_STR
	    RIP_STR)
{
	vty_out(vty, "RIP debugging status:\n");

	if (IS_RIP_DEBUG_EVENT)
		vty_out(vty, "  RIP event debugging is on\n");

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

	if (IS_RIP_DEBUG_ZEBRA)
		vty_out(vty, "  RIP zebra debugging is on\n");

	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_SUCCESS;
}

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 (strcmp("send", argv[idx_recv_send]->text) == 0)
		rip_debug_packet |= RIP_DEBUG_SEND;
	if (strcmp("recv", argv[idx_recv_send]->text) == 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_SUCCESS;
}

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 (strcmp("send", argv[idx_recv_send]->text) == 0) {
		if (IS_RIP_DEBUG_RECV)
			rip_debug_packet &= ~RIP_DEBUG_SEND;
		else
			rip_debug_packet = 0;
	} else if (strcmp("recv", argv[idx_recv_send]->text) == 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_SUCCESS;
}

/* 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\n");
		write++;
	}
	if (IS_RIP_DEBUG_PACKET) {
		if (IS_RIP_DEBUG_SEND && IS_RIP_DEBUG_RECV) {
			vty_out(vty, "debug rip packet\n");
			write++;
		} else {
			if (IS_RIP_DEBUG_SEND)
				vty_out(vty, "debug rip packet send\n");
			else
				vty_out(vty, "debug rip packet recv\n");
			write++;
		}
	}
	if (IS_RIP_DEBUG_ZEBRA) {
		vty_out(vty, "debug rip zebra\n");
		write++;
	}
	return write;
}

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);
}