This is especially useful if there are no claims yet, but we still want
to know which gateways are using bridge loop avoidance in the network.
Signed-off-by: Simon Wunderlich s...@hrz.tu-chemnitz.de
---
[EDIT: forgot to rename the function ...]
---
bridge_loop_avoidance.c | 68 +++
bridge_loop_avoidance.h |8 ++
debugfs.c | 12 +
3 files changed, 88 insertions(+)
diff --git a/bridge_loop_avoidance.c b/bridge_loop_avoidance.c
index 38aab1e..75587af 100644
--- a/bridge_loop_avoidance.c
+++ b/bridge_loop_avoidance.c
@@ -1592,3 +1592,71 @@ out:
batadv_hardif_free_ref(primary_if);
return ret;
}
+
+int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq, void
*offset)
+{
+ struct net_device *net_dev = (struct net_device *)seq-private;
+ struct batadv_priv *bat_priv = netdev_priv(net_dev);
+ struct batadv_hashtable *hash = bat_priv-backbone_hash;
+ struct batadv_backbone_gw *backbone_gw;
+ struct batadv_hard_iface *primary_if;
+ struct hlist_node *node;
+ struct hlist_head *head;
+ int last_seen_secs;
+ int last_seen_msecs;
+ uint32_t i;
+ bool is_own;
+ int ret = 0;
+ uint8_t *primary_addr;
+
+ primary_if = batadv_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 != BATADV_IF_ACTIVE) {
+ ret = seq_printf(seq,
+BATMAN mesh %s disabled - primary interface
not active\n,
+net_dev-name);
+ goto out;
+ }
+
+ primary_addr = primary_if-net_dev-dev_addr;
+ seq_printf(seq,
+ Backbones announced for the mesh %s (orig %pM, group id
%04x)\n,
+ net_dev-name, primary_addr,
+ ntohs(bat_priv-claim_dest.group));
+ seq_printf(seq,%-17s%-5s %-9s (%-4s)\n,
+ Originator, VID, last seen, CRC);
+ for (i = 0; i hash-size; i++) {
+ head = hash-table[i];
+
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(backbone_gw, node, head, hash_entry) {
+ last_seen_msecs = jiffies_to_msecs(jiffies -
+ backbone_gw-lasttime);
+ last_seen_secs = last_seen_msecs / 1000;
+ last_seen_msecs = last_seen_msecs % 1000;
+
+
+ is_own = batadv_compare_eth(backbone_gw-orig,
+ primary_addr);
+ if (is_own)
+ continue;
+
+ seq_printf(seq,
+ * %pM on % 5d % 4i.%03is (%04x)\n,
+ backbone_gw-orig, backbone_gw-vid,
+ last_seen_secs, last_seen_msecs,
+ backbone_gw-crc);
+ }
+ rcu_read_unlock();
+ }
+out:
+ if (primary_if)
+ batadv_hardif_free_ref(primary_if);
+ return ret;
+}
diff --git a/bridge_loop_avoidance.h b/bridge_loop_avoidance.h
index 08d13cb..58015ce 100644
--- a/bridge_loop_avoidance.h
+++ b/bridge_loop_avoidance.h
@@ -26,6 +26,8 @@ int batadv_bla_tx(struct batadv_priv *bat_priv, struct
sk_buff *skb, short vid);
int batadv_bla_is_backbone_gw(struct sk_buff *skb,
struct batadv_orig_node *orig_node, int hdr_size);
int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset);
+int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
+void *offset);
int batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, uint8_t
*orig);
int batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
struct batadv_bcast_packet *bcast_packet,
@@ -64,6 +66,12 @@ static inline int
batadv_bla_claim_table_seq_print_text(struct seq_file *seq,
return 0;
}
+static inline int batadv_bla_backbone_table_seq_print_text(struct seq_file
*seq,
+ void *offset)
+{
+ return 0;
+}
+
static inline int batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv,
uint8_t *orig)
{
diff --git a/debugfs.c b/debugfs.c
index e45cf0e..ee8b322 100644
--- a/debugfs.c
+++ b/debugfs.c
@@ -263,6 +263,15 @@ static int batadv_bla_claim_table_open(struct inode
*inode, struct file *file)
return single_open(file, batadv_bla_claim_table_seq_print_text,
net_dev);
}
