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batman-adv: export claim tables through debugfs

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Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
This commit is contained in:
Simon Wunderlich 2012-01-22 20:00:21 +01:00 committed by Antonio Quartulli
parent c867305509
commit 9bf8e4d425
4 changed files with 66 additions and 3 deletions
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5
Documentation/networking/batman-adv.txt
View File

@ -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

10
net/batman-adv/bat_debugfs.c
View File

@ -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,

53
net/batman-adv/bridge_loop_avoidance.c
View File

@ -1294,3 +1294,56 @@ int bla_tx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid)
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;
}

1
net/batman-adv/bridge_loop_avoidance.h
View File

@ -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);