Author: bz
Date: Thu Mar 18 09:09:59 2010
New Revision: 205276
URL: http://svn.freebsd.org/changeset/base/205276
Log:
Add ddb support to the "new" link layer code ("new-arp"):
- 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
Modified:
head/sys/net/if_llatbl.c
Modified: head/sys/net/if_llatbl.c
==============================================================================
--- head/sys/net/if_llatbl.c Thu Mar 18 07:35:20 2010 (r205275)
+++ head/sys/net/if_llatbl.c Thu Mar 18 09:09:59 2010 (r205276)
@@ -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
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