From 491af1942e7b255ff4e89c5c3e46c0cafeeb1e04 Mon Sep 17 00:00:00 2001
From: bz <bz@FreeBSD.org>
Date: Mon, 25 Oct 2010 08:30:19 +0000
Subject: 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
---
sys/net/if_debug.c | 125 +++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 125 insertions(+)
create mode 100644 sys/net/if_debug.c
(limited to 'sys/net/if_debug.c')
diff --git a/sys/net/if_debug.c b/sys/net/if_debug.c
new file mode 100644
index 0000000..dcf504e
--- /dev/null
+++ b/sys/net/if_debug.c
@@ -0,0 +1,125 @@
+/*-
+ * 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
--
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