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Add ddb support to the "new" link layer code ("new-arp"):

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- show all lltables [1] (optional flag to also show the llentries as well)
 - show lltable <struct lltable *>
 - show llentry <struct llentry *>

MFC after:	6 days
This commit is contained in:
Bjoern A. Zeeb 2010-03-18 09:09:59 +00:00
parent ee48488f0b
commit 335b943f8e
1 changed files with 136 additions and 0 deletions
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136
sys/net/if_llatbl.c
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@ -27,6 +27,7 @@
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_ddb.h"
#include "opt_inet.h"
#include "opt_inet6.h"
@ -42,6 +43,10 @@ __FBSDID("$FreeBSD$");
#include <sys/mutex.h>
#include <sys/rwlock.h>
#ifdef DDB
#include <ddb/ddb.h>
#endif
#include <vm/uma.h>
#include <netinet/in.h>
@ -382,3 +387,134 @@ vnet_lltable_init()
VNET_SYSINIT(vnet_lltable_init, SI_SUB_PSEUDO, SI_ORDER_FIRST,
vnet_lltable_init, NULL);
#ifdef DDB
struct llentry_sa {
struct llentry base;
struct sockaddr l3_addr;
};
static void
llatbl_lle_show(struct llentry_sa *la)
{
struct llentry *lle;
uint8_t octet[6];
lle = &la->base;
db_printf("lle=%p\n", lle);
db_printf(" lle_next=%p\n", lle->lle_next.le_next);
db_printf(" lle_lock=%p\n", &lle->lle_lock);
db_printf(" lle_tbl=%p\n", lle->lle_tbl);
db_printf(" lle_head=%p\n", lle->lle_head);
db_printf(" la_hold=%p\n", lle->la_hold);
db_printf(" la_expire=%ju\n", (uintmax_t)lle->la_expire);
db_printf(" la_flags=0x%04x\n", lle->la_flags);
db_printf(" la_asked=%u\n", lle->la_asked);
db_printf(" la_preempt=%u\n", lle->la_preempt);
db_printf(" ln_byhint=%u\n", lle->ln_byhint);
db_printf(" ln_state=%d\n", lle->ln_state);
db_printf(" ln_router=%u\n", lle->ln_router);
db_printf(" ln_ntick=%ju\n", (uintmax_t)lle->ln_ntick);
db_printf(" lle_refcnt=%d\n", lle->lle_refcnt);
bcopy(&lle->ll_addr.mac16, octet, sizeof(octet));
db_printf(" ll_addr=%02x:%02x:%02x:%02x:%02x:%02x\n",
octet[0], octet[1], octet[2], octet[3], octet[4], octet[5]);
db_printf(" la_timer=%p\n", &lle->la_timer);
switch (la->l3_addr.sa_family) {
#ifdef INET
case AF_INET:
{
struct sockaddr_in *sin;
char l3s[INET_ADDRSTRLEN];
sin = (struct sockaddr_in *)&la->l3_addr;
inet_ntoa_r(sin->sin_addr, l3s);
db_printf(" l3_addr=%s\n", l3s);
break;
}
#endif
#ifdef INET6
case AF_INET6:
{
struct sockaddr_in6 *sin6;
char l3s[INET6_ADDRSTRLEN];
sin6 = (struct sockaddr_in6 *)&la->l3_addr;
ip6_sprintf(l3s, &sin6->sin6_addr);
db_printf(" l3_addr=%s\n", l3s);
break;
}
#endif
default:
db_printf(" l3_addr=N/A (af=%d)\n", la->l3_addr.sa_family);
break;
}
}
DB_SHOW_COMMAND(llentry, db_show_llentry)
{
if (!have_addr) {
db_printf("usage: show llentry <struct llentry *>\n");
return;
}
llatbl_lle_show((struct llentry_sa *)addr);
}
static void
llatbl_llt_show(struct lltable *llt)
{
int i;
struct llentry *lle;
db_printf("llt=%p llt_af=%d llt_ifp=%p\n",
llt, llt->llt_af, llt->llt_ifp);
for (i = 0; i < LLTBL_HASHTBL_SIZE; i++) {
LIST_FOREACH(lle, &llt->lle_head[i], lle_next) {
llatbl_lle_show((struct llentry_sa *)lle);
if (db_pager_quit)
return;
}
}
}
DB_SHOW_COMMAND(lltable, db_show_lltable)
{
if (!have_addr) {
db_printf("usage: show lltable <struct lltable *>\n");
return;
}
llatbl_llt_show((struct lltable *)addr);
}
DB_SHOW_ALL_COMMAND(lltables, db_show_all_lltables)
{
VNET_ITERATOR_DECL(vnet_iter);
struct lltable *llt;
VNET_FOREACH(vnet_iter) {
CURVNET_SET_QUIET(vnet_iter);
#ifdef VIMAGE
db_printf("vnet=%p\n", curvnet);
#endif
SLIST_FOREACH(llt, &V_lltables, llt_link) {
db_printf("llt=%p llt_af=%d llt_ifp=%p(%s)\n",
llt, llt->llt_af, llt->llt_ifp,
(llt->llt_ifp != NULL) ?
llt->llt_ifp->if_xname : "?");
if (have_addr && addr != 0) /* verbose */
llatbl_llt_show(llt);
if (db_pager_quit) {
CURVNET_RESTORE();
return;
}
}
CURVNET_RESTORE();
}
}
#endif