batman-adv: export claim tables through debugfs (9bf8e4d4) · Commits · e / devices / android_kernel_fairphone_FP4

Documentation/networking/batman-adv.txt

+2 −3

Original line number	Diff line number	Diff line
		@@ -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 −0

Original line number	Diff line number	Diff line
		@@ -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 −0

Original line number	Diff line number	Diff line
		@@ -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 −0

Original line number	Diff line number	Diff line
		@@ -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);