freebsd-skq/sys/net/if_debug.c
bz 491af1942e Factor out DDB commands from r204145, r204279 into if_debug.c for further
enhancements (1).  Switch to a standard 2-clause BSD license for this (2).

Unfortunately we have to un-static the ifindex_table for this but do not
publicly export it.

Suggested by:	rwatson (1) a while back.
Approved by:	thompsa (2) for the change from r204279.
MFC after:	6 days
2010-10-25 08:30:19 +00:00

126 lines
3.6 KiB
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);
#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