freebsd-dev/sys/net/if_debug.c

/*-
 * Copyright (c) 2010 Bjoern A. Zeeb <bz@FreeBSD.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

#include "opt_ddb.h"

#include <sys/param.h>
#include <sys/socket.h>
#include <sys/types.h>

#ifdef DDB
#include <ddb/ddb.h>
#endif

#include <net/if.h>
#include <net/if_types.h>
#include <net/if_var.h>
#include <net/vnet.h>

#ifdef DDB
struct ifindex_entry {
	struct  ifnet *ife_ifnet;
};
VNET_DECLARE(struct ifindex_entry *, ifindex_table);
#define	V_ifindex_table		VNET(ifindex_table)

static void
if_show_ifnet(struct ifnet *ifp)
{

	if (ifp == NULL)
		return;
	db_printf("%s:\n", ifp->if_xname);
#define	IF_DB_PRINTF(f, e)	db_printf("   %s = " f "\n", #e, ifp->e);
	IF_DB_PRINTF("%s", if_dname);
	IF_DB_PRINTF("%d", if_dunit);
	IF_DB_PRINTF("%s", if_description);
	IF_DB_PRINTF("%u", if_index);
	IF_DB_PRINTF("%u", if_refcount);
	IF_DB_PRINTF("%d", if_index_reserved);
	IF_DB_PRINTF("%p", if_softc);
	IF_DB_PRINTF("%p", if_l2com);
	IF_DB_PRINTF("%p", if_vnet);
	IF_DB_PRINTF("%p", if_home_vnet);
	IF_DB_PRINTF("%p", if_addr);
	IF_DB_PRINTF("%p", if_llsoftc);
	IF_DB_PRINTF("%p", if_label);
	IF_DB_PRINTF("%u", if_pcount);
	IF_DB_PRINTF("0x%08x", if_flags);
	IF_DB_PRINTF("0x%08x", if_drv_flags);
	IF_DB_PRINTF("0x%08x", if_capabilities);
	IF_DB_PRINTF("0x%08x", if_capenable);
	IF_DB_PRINTF("%p", if_snd.ifq_head);
	IF_DB_PRINTF("%p", if_snd.ifq_tail);
	IF_DB_PRINTF("%d", if_snd.ifq_len);
	IF_DB_PRINTF("%d", if_snd.ifq_maxlen);
	IF_DB_PRINTF("%d", if_snd.ifq_drops);
	IF_DB_PRINTF("%p", if_snd.ifq_drv_head);
	IF_DB_PRINTF("%p", if_snd.ifq_drv_tail);
	IF_DB_PRINTF("%d", if_snd.ifq_drv_len);
	IF_DB_PRINTF("%d", if_snd.ifq_drv_maxlen);
	IF_DB_PRINTF("%d", if_snd.altq_type);
	IF_DB_PRINTF("%x", if_snd.altq_flags);
	IF_DB_PRINTF("%u", if_fib);
#undef IF_DB_PRINTF
}

DB_SHOW_COMMAND(ifnet, db_show_ifnet)
{

	if (!have_addr) {
		db_printf("usage: show ifnet <struct ifnet *>\n");
		return;
	}

	if_show_ifnet((struct ifnet *)addr);
}

DB_SHOW_ALL_COMMAND(ifnets, db_show_all_ifnets)
{
	VNET_ITERATOR_DECL(vnet_iter);
	struct ifnet *ifp;
	u_short idx;

	VNET_FOREACH(vnet_iter) {
		CURVNET_SET_QUIET(vnet_iter);
#ifdef VIMAGE
		db_printf("vnet=%p\n", curvnet);
#endif
		for (idx = 1; idx <= V_if_index; idx++) {
			ifp = V_ifindex_table[idx].ife_ifnet;
			if (ifp == NULL)
				continue;
			db_printf( "%20s ifp=%p\n", ifp->if_xname, ifp);
			if (db_pager_quit)
				break;
		}
		CURVNET_RESTORE();
	}
}
#endif