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Date: Wed, 16 Dec 2015 15:49:26 +0800
From: Antonio Quartulli <antonio@...hcoding.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, b.a.t.m.a.n@...ts.open-mesh.org,
Marek Lindner <mareklindner@...mailbox.ch>,
Antonio Quartulli <antonio@...hcoding.com>
Subject: [PATCH 05/12] batman-adv: export single hop neighbor list via debugfs
From: Marek Lindner <mareklindner@...mailbox.ch>
Signed-off-by: Marek Lindner <mareklindner@...mailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@...hcoding.com>
---
net/batman-adv/bat_iv_ogm.c | 53 +++++++++++++++++++++++++++++++++++++++++++++
net/batman-adv/debugfs.c | 9 ++++++++
net/batman-adv/originator.c | 34 +++++++++++++++++++++++++++++
net/batman-adv/originator.h | 2 ++
net/batman-adv/types.h | 2 ++
5 files changed, 100 insertions(+)
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 912d9c3..1efdb5c 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -1862,6 +1862,58 @@ next:
}
/**
+ * batadv_iv_hardif_neigh_print - print a single hop neighbour node
+ * @seq: neighbour table seq_file struct
+ * @hardif_neigh: hardif neighbour information
+ */
+static void
+batadv_iv_hardif_neigh_print(struct seq_file *seq,
+ struct batadv_hardif_neigh_node *hardif_neigh)
+{
+ int last_secs, last_msecs;
+
+ last_secs = jiffies_to_msecs(jiffies - hardif_neigh->last_seen) / 1000;
+ last_msecs = jiffies_to_msecs(jiffies - hardif_neigh->last_seen) % 1000;
+
+ seq_printf(seq, " %10s %pM %4i.%03is\n",
+ hardif_neigh->if_incoming->net_dev->name,
+ hardif_neigh->addr, last_secs, last_msecs);
+}
+
+/**
+ * batadv_iv_ogm_neigh_print - print the single hop neighbour list
+ * @bat_priv: the bat priv with all the soft interface information
+ * @seq: neighbour table seq_file struct
+ */
+static void batadv_iv_neigh_print(struct batadv_priv *bat_priv,
+ struct seq_file *seq)
+{
+ struct net_device *net_dev = (struct net_device *)seq->private;
+ struct batadv_hardif_neigh_node *hardif_neigh;
+ struct batadv_hard_iface *hard_iface;
+ int batman_count = 0;
+
+ seq_printf(seq, " %10s %-13s %s\n",
+ "IF", "Neighbor", "last-seen");
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {
+ if (hard_iface->soft_iface != net_dev)
+ continue;
+
+ hlist_for_each_entry_rcu(hardif_neigh,
+ &hard_iface->neigh_list, list) {
+ batadv_iv_hardif_neigh_print(seq, hardif_neigh);
+ batman_count++;
+ }
+ }
+ rcu_read_unlock();
+
+ if (batman_count == 0)
+ seq_puts(seq, "No batman nodes in range ...\n");
+}
+
+/**
* batadv_iv_ogm_neigh_cmp - compare the metrics of two neighbors
* @neigh1: the first neighbor object of the comparison
* @if_outgoing1: outgoing interface for the first neighbor
@@ -1954,6 +2006,7 @@ static struct batadv_algo_ops batadv_batman_iv __read_mostly = {
.bat_ogm_emit = batadv_iv_ogm_emit,
.bat_neigh_cmp = batadv_iv_ogm_neigh_cmp,
.bat_neigh_is_equiv_or_better = batadv_iv_ogm_neigh_is_eob,
+ .bat_neigh_print = batadv_iv_neigh_print,
.bat_orig_print = batadv_iv_ogm_orig_print,
.bat_orig_free = batadv_iv_ogm_orig_free,
.bat_orig_add_if = batadv_iv_ogm_orig_add_if,
diff --git a/net/batman-adv/debugfs.c b/net/batman-adv/debugfs.c
index c4c1e80..037ad0a 100644
--- a/net/batman-adv/debugfs.c
+++ b/net/batman-adv/debugfs.c
@@ -262,6 +262,13 @@ static int batadv_algorithms_open(struct inode *inode, struct file *file)
return single_open(file, batadv_algo_seq_print_text, NULL);
}
+static int neighbors_open(struct inode *inode, struct file *file)
+{
+ struct net_device *net_dev = (struct net_device *)inode->i_private;
+
+ return single_open(file, batadv_hardif_neigh_seq_print_text, net_dev);
+}
+
static int batadv_originators_open(struct inode *inode, struct file *file)
{
struct net_device *net_dev = (struct net_device *)inode->i_private;
@@ -375,6 +382,7 @@ static struct batadv_debuginfo *batadv_general_debuginfos[] = {
};
/* The following attributes are per soft interface */
+static BATADV_DEBUGINFO(neighbors, S_IRUGO, neighbors_open);
static BATADV_DEBUGINFO(originators, S_IRUGO, batadv_originators_open);
static BATADV_DEBUGINFO(gateways, S_IRUGO, batadv_gateways_open);
static BATADV_DEBUGINFO(transtable_global, S_IRUGO,
@@ -394,6 +402,7 @@ static BATADV_DEBUGINFO(nc_nodes, S_IRUGO, batadv_nc_nodes_open);
#endif
static struct batadv_debuginfo *batadv_mesh_debuginfos[] = {
+ &batadv_debuginfo_neighbors,
&batadv_debuginfo_originators,
&batadv_debuginfo_gateways,
&batadv_debuginfo_transtable_global,
diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index 27dd326..3c782a33 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -693,6 +693,40 @@ out:
}
/**
+ * batadv_hardif_neigh_seq_print_text - print the single hop neighbour list
+ * @seq: neighbour table seq_file struct
+ * @offset: not used
+ *
+ * Always returns 0.
+ */
+int batadv_hardif_neigh_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_hard_iface *primary_if;
+
+ primary_if = batadv_seq_print_text_primary_if_get(seq);
+ if (!primary_if)
+ return 0;
+
+ seq_printf(seq, "[B.A.T.M.A.N. adv %s, MainIF/MAC: %s/%pM (%s %s)]\n",
+ BATADV_SOURCE_VERSION, primary_if->net_dev->name,
+ primary_if->net_dev->dev_addr, net_dev->name,
+ bat_priv->bat_algo_ops->name);
+
+ batadv_hardif_free_ref(primary_if);
+
+ if (!bat_priv->bat_algo_ops->bat_neigh_print) {
+ seq_puts(seq,
+ "No printing function for this routing protocol\n");
+ return 0;
+ }
+
+ bat_priv->bat_algo_ops->bat_neigh_print(bat_priv, seq);
+ return 0;
+}
+
+/**
* batadv_orig_ifinfo_free_rcu - free the orig_ifinfo object
* @rcu: rcu pointer of the orig_ifinfo object
*/
diff --git a/net/batman-adv/originator.h b/net/batman-adv/originator.h
index eae0557..2955775 100644
--- a/net/batman-adv/originator.h
+++ b/net/batman-adv/originator.h
@@ -62,6 +62,8 @@ batadv_neigh_ifinfo_get(struct batadv_neigh_node *neigh,
struct batadv_hard_iface *if_outgoing);
void batadv_neigh_ifinfo_free_ref(struct batadv_neigh_ifinfo *neigh_ifinfo);
+int batadv_hardif_neigh_seq_print_text(struct seq_file *seq, void *offset);
+
struct batadv_orig_ifinfo *
batadv_orig_ifinfo_get(struct batadv_orig_node *orig_node,
struct batadv_hard_iface *if_outgoing);
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 838d55e..815c960 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -1159,6 +1159,7 @@ struct batadv_forw_packet {
* @bat_neigh_is_equiv_or_better: check if neigh1 is equally good or better
* than neigh2 for their respective outgoing interface from the metric
* prospective
+ * @bat_neigh_print: print the single hop neighbor list (optional)
* @bat_neigh_free: free the resources allocated by the routing algorithm for a
* neigh_node object
* @bat_orig_print: print the originator table (optional)
@@ -1189,6 +1190,7 @@ struct batadv_algo_ops {
struct batadv_hard_iface *if_outgoing1,
struct batadv_neigh_node *neigh2,
struct batadv_hard_iface *if_outgoing2);
+ void (*bat_neigh_print)(struct batadv_priv *priv, struct seq_file *seq);
void (*bat_neigh_free)(struct batadv_neigh_node *neigh);
/* orig_node handling API */
void (*bat_orig_print)(struct batadv_priv *priv, struct seq_file *seq,
--
2.6.4
--
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