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Date: Thu, 5 Apr 2012 12:38:56 +0200
From: Antonio Quartulli <ordex@...istici.org>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, b.a.t.m.a.n@...ts.open-mesh.org,
Simon Wunderlich <simon.wunderlich@...03.tu-chemnitz.de>,
Simon Wunderlich <siwu@....tu-chemnitz.de>,
Antonio Quartulli <ordex@...istici.org>
Subject: [PATCH 10/16] batman-adv: export claim tables through debugfs
From: Simon Wunderlich <simon.wunderlich@...03.tu-chemnitz.de>
Signed-off-by: Simon Wunderlich <siwu@....tu-chemnitz.de>
Signed-off-by: Antonio Quartulli <ordex@...istici.org>
---
Documentation/networking/batman-adv.txt | 5 ++-
net/batman-adv/bat_debugfs.c | 10 ++++++
net/batman-adv/bridge_loop_avoidance.c | 53 +++++++++++++++++++++++++++++++
net/batman-adv/bridge_loop_avoidance.h | 1 +
4 files changed, 66 insertions(+), 3 deletions(-)
diff --git a/Documentation/networking/batman-adv.txt b/Documentation/networking/batman-adv.txt
index 9523e9e..220a58c 100644
--- a/Documentation/networking/batman-adv.txt
+++ b/Documentation/networking/batman-adv.txt
@@ -77,9 +77,8 @@ folder:
There is a special folder for debugging information:
# ls /sys/kernel/debug/batman_adv/bat0/
-# gateways socket transtable_global vis_data
-# originators softif_neigh transtable_local
-
+# bla_claim_table log socket transtable_local
+# gateways originators transtable_global vis_data
Some of the files contain all sort of status information regard-
ing the mesh network. For example, you can view the table of
diff --git a/net/batman-adv/bat_debugfs.c b/net/batman-adv/bat_debugfs.c
index 165ff62..0e35177 100644
--- a/net/batman-adv/bat_debugfs.c
+++ b/net/batman-adv/bat_debugfs.c
@@ -32,6 +32,7 @@
#include "soft-interface.h"
#include "vis.h"
#include "icmp_socket.h"
+#include "bridge_loop_avoidance.h"
static struct dentry *bat_debugfs;
@@ -244,6 +245,13 @@ static int transtable_global_open(struct inode *inode, struct file *file)
return single_open(file, tt_global_seq_print_text, net_dev);
}
+static int bla_claim_table_open(struct inode *inode, struct file *file)
+{
+ struct net_device *net_dev = (struct net_device *)inode->i_private;
+ return single_open(file, bla_claim_table_seq_print_text, net_dev);
+}
+
+
static int transtable_local_open(struct inode *inode, struct file *file)
{
struct net_device *net_dev = (struct net_device *)inode->i_private;
@@ -277,6 +285,7 @@ static BAT_DEBUGINFO(routing_algos, S_IRUGO, bat_algorithms_open);
static BAT_DEBUGINFO(originators, S_IRUGO, originators_open);
static BAT_DEBUGINFO(gateways, S_IRUGO, gateways_open);
static BAT_DEBUGINFO(transtable_global, S_IRUGO, transtable_global_open);
+static BAT_DEBUGINFO(bla_claim_table, S_IRUGO, bla_claim_table_open);
static BAT_DEBUGINFO(transtable_local, S_IRUGO, transtable_local_open);
static BAT_DEBUGINFO(vis_data, S_IRUGO, vis_data_open);
@@ -284,6 +293,7 @@ static struct bat_debuginfo *mesh_debuginfos[] = {
&bat_debuginfo_originators,
&bat_debuginfo_gateways,
&bat_debuginfo_transtable_global,
+ &bat_debuginfo_bla_claim_table,
&bat_debuginfo_transtable_local,
&bat_debuginfo_vis_data,
NULL,
diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
index e86cc90..e8b4435 100644
--- a/net/batman-adv/bridge_loop_avoidance.c
+++ b/net/batman-adv/bridge_loop_avoidance.c
@@ -1299,3 +1299,56 @@ out:
claim_free_ref(claim);
return ret;
}
+
+int bla_claim_table_seq_print_text(struct seq_file *seq, void *offset)
+{
+ struct net_device *net_dev = (struct net_device *)seq->private;
+ struct bat_priv *bat_priv = netdev_priv(net_dev);
+ struct hashtable_t *hash = bat_priv->claim_hash;
+ struct claim *claim;
+ struct hard_iface *primary_if;
+ struct hlist_node *node;
+ struct hlist_head *head;
+ uint32_t i;
+ bool is_own;
+ int ret = 0;
+
+ primary_if = primary_if_get_selected(bat_priv);
+ if (!primary_if) {
+ ret = seq_printf(seq,
+ "BATMAN mesh %s disabled - please specify interfaces to enable it\n",
+ net_dev->name);
+ goto out;
+ }
+
+ if (primary_if->if_status != IF_ACTIVE) {
+ ret = seq_printf(seq,
+ "BATMAN mesh %s disabled - primary interface not active\n",
+ net_dev->name);
+ goto out;
+ }
+
+ seq_printf(seq, "Claims announced for the mesh %s (orig %pM)\n",
+ net_dev->name, primary_if->net_dev->dev_addr);
+ seq_printf(seq, " %-17s %-5s %-17s [o] (%-4s)\n",
+ "Client", "VID", "Originator", "CRC");
+ for (i = 0; i < hash->size; i++) {
+ head = &hash->table[i];
+
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(claim, node, head, hash_entry) {
+ is_own = compare_eth(claim->backbone_gw->orig,
+ primary_if->net_dev->dev_addr);
+ seq_printf(seq, " * %pM on % 5d by %pM [%c] (%04x)\n",
+ claim->addr, claim->vid,
+ claim->backbone_gw->orig,
+ (is_own ? 'x' : ' '),
+ claim->backbone_gw->crc);
+ }
+ rcu_read_unlock();
+ }
+out:
+ if (primary_if)
+ hardif_free_ref(primary_if);
+ return ret;
+}
diff --git a/net/batman-adv/bridge_loop_avoidance.h b/net/batman-adv/bridge_loop_avoidance.h
index 488d778..d9e3480 100644
--- a/net/batman-adv/bridge_loop_avoidance.h
+++ b/net/batman-adv/bridge_loop_avoidance.h
@@ -26,6 +26,7 @@ int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid);
int bla_tx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid);
int bla_is_backbone_gw(struct sk_buff *skb,
struct orig_node *orig_node, int hdr_size);
+int bla_claim_table_seq_print_text(struct seq_file *seq, void *offset);
void bla_update_orig_address(struct bat_priv *bat_priv,
struct hard_iface *primary_if,
struct hard_iface *oldif);
--
1.7.9.4
--
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