batman-adv: Distributed ARP Table - implement local storage

Since batman-adv cannot inter-operate with the host ARP table, this patch
introduces a batman-adv private storage for ARP entries exchanged within DAT.
This storage will represent the node local cache in the DAT protocol.

Signed-off-by: Antonio Quartulli <ordex@autistici.org>

1 files changed, 15 insertions, 0 deletions

diff --git a/net/batman-adv/debugfs.c b/net/batman-adv/debugfs.c
index bd032bc4e262..ebc5f4d1f53c 100644
--- a/net/batman-adv/debugfs.c
+++ b/net/batman-adv/debugfs.c
@@ -31,6 +31,7 @@
 #include "vis.h"
 #include "icmp_socket.h"
 #include "bridge_loop_avoidance.h"
+#include "distributed-arp-table.h"
 
 static struct dentry *batadv_debugfs;
 
@@ -280,6 +281,18 @@ static int batadv_bla_backbone_table_open(struct inode *inode,
 
 #endif
 
+/**
+ * batadv_dat_cache_open - Prepare file handler for reads from dat_chache
+ * @inode: inode which was opened
+ * @file: file handle to be initialized
+ */
+static int batadv_dat_cache_open(struct inode *inode, struct file *file)
+{
+        struct net_device *net_dev = (struct net_device *)inode->i_private;
+        return single_open(file, batadv_dat_cache_seq_print_text, net_dev);
+}
+
+
 static int batadv_transtable_local_open(struct inode *inode, struct file *file)
 {
         struct net_device *net_dev = (struct net_device *)inode->i_private;
@@ -319,6 +332,7 @@ static BATADV_DEBUGINFO(bla_claim_table, S_IRUGO, batadv_bla_claim_table_open);
 static BATADV_DEBUGINFO(bla_backbone_table, S_IRUGO,
                         batadv_bla_backbone_table_open);
 #endif
+static BATADV_DEBUGINFO(dat_cache, S_IRUGO, batadv_dat_cache_open);
 static BATADV_DEBUGINFO(transtable_local, S_IRUGO,
                         batadv_transtable_local_open);
 static BATADV_DEBUGINFO(vis_data, S_IRUGO, batadv_vis_data_open);
@@ -331,6 +345,7 @@ static struct batadv_debuginfo *batadv_mesh_debuginfos[] = {
         &batadv_debuginfo_bla_claim_table,
         &batadv_debuginfo_bla_backbone_table,
 #endif
+        &batadv_debuginfo_dat_cache,
         &batadv_debuginfo_transtable_local,
         &batadv_debuginfo_vis_data,
         NULL,