[B.A.T.M.A.N.] [RFC 23/23] batman-adv: B.A.T.M.A.N. V - implement bat_orig_print API

Antonio Quartulli
2014-02-11T12:48:23Z

From: Antonio Quartulli <antonio@open-mesh.com>

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
---
bat_v.c | 98 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 98 insertions(+)

diff --git a/bat_v.c b/bat_v.c
index d05d548..6b21afe 100644
--- a/bat_v.c
+++ b/bat_v.c
@@ -64,6 +64,103 @@ static void batadv_v_ogm_emit(struct batadv_forw_packet *forw_packet)
{
}

+/**
+ * batadv_v_orig_print_neigh - print neighbors for the originator table
+ * @orig_node: the orig_node for which the neighbors are printed
+ * @if_outgoing: outgoing interface for these entries
+ * @seq: debugfs table seq_file struct
+ *
+ * Must be called while holding an rcu lock.
+ */
+static void
+batadv_v_orig_print_neigh(struct batadv_orig_node *orig_node,
+ struct batadv_hard_iface *if_outgoing,
+ struct seq_file *seq)
+{
+ struct batadv_neigh_node *neigh_node;
+ struct batadv_neigh_ifinfo *n_ifinfo;
+
+ hlist_for_each_entry_rcu(neigh_node, &orig_node->neigh_list, list) {
+ n_ifinfo = batadv_neigh_ifinfo_get(neigh_node, if_outgoing);
+ if (!n_ifinfo)
+ continue;
+
+ seq_printf(seq, " %pM (%9u.%1u)",
+ neigh_node->addr,
+ n_ifinfo->bat_v.metric / 10,
+ n_ifinfo->bat_v.metric % 10);
+
+ batadv_neigh_ifinfo_free_ref(n_ifinfo);
+ }
+}
+
+/**
+ * batadv_v_orig_print - print the originator table
+ * @bat_priv: the bat priv with all the soft interface information
+ * @seq: debugfs table seq_file struct
+ * @if_outgoing: the outgoing interface for which this should be printed
+ */
+static void batadv_v_orig_print(struct batadv_priv *bat_priv,
+ struct seq_file *seq,
+ struct batadv_hard_iface *if_outgoing)
+{
+ struct batadv_neigh_node *neigh_node;
+ struct batadv_hashtable *hash = bat_priv->orig_hash;
+ int last_seen_msecs, last_seen_secs;
+ struct batadv_orig_node *orig_node;
+ struct batadv_neigh_ifinfo *n_ifinfo;
+ unsigned long last_seen_jiffies;
+ struct hlist_head *head;
+ int batman_count = 0;
+ uint32_t i;
+
+ seq_printf(seq, " %-15s %s (%11s) %17s [%10s]: %20s ...\n",
+ "Originator", "last-seen", "metric", "Nexthop",
+ "outgoingIF", "Potential nexthops");
+
+ for (i = 0; i < hash->size; i++) {
+ head = &hash->table[i];
+
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(orig_node, head, hash_entry) {
+ neigh_node = batadv_orig_router_get(orig_node,
+ if_outgoing);
+ if (!neigh_node)
+ continue;
+
+ n_ifinfo = batadv_neigh_ifinfo_get(neigh_node,
+ if_outgoing);
+ if (!n_ifinfo)
+ goto next;
+
+ last_seen_jiffies = jiffies - orig_node->last_seen;
+ last_seen_msecs = jiffies_to_msecs(last_seen_jiffies);
+ last_seen_secs = last_seen_msecs / 1000;
+ last_seen_msecs = last_seen_msecs % 1000;
+
+ seq_printf(seq, "%pM %4i.%03is (%9u.%1u) %pM [%10s]:",
+ orig_node->orig, last_seen_secs,
+ last_seen_msecs, n_ifinfo->bat_v.metric / 10,
+ n_ifinfo->bat_v.metric % 10,
+ neigh_node->addr,
+ neigh_node->if_incoming->net_dev->name);
+
+ batadv_v_orig_print_neigh(orig_node, if_outgoing, seq);
+ seq_puts(seq, "\n");
+ batman_count++;
+
+next:
+ batadv_neigh_node_free_ref(neigh_node);
+ if (n_ifinfo)
+ batadv_neigh_ifinfo_free_ref(n_ifinfo);
+ }
+ rcu_read_unlock();
+ }
+
+ if (batman_count == 0)
+ seq_puts(seq, "No batman nodes in range ...\n");
+}
+
static int batadv_v_neigh_cmp(struct batadv_neigh_node *neigh1,
struct batadv_hard_iface *if_outgoing1,
struct batadv_neigh_node *neigh2,
@@ -112,6 +209,7 @@ static struct batadv_algo_ops batadv_batman_v __read_mostly = {
.bat_primary_iface_set = batadv_v_primary_iface_set,
.bat_ogm_emit = batadv_v_ogm_emit,
.bat_ogm_schedule = batadv_v_ogm_schedule,
+ .bat_orig_print = batadv_v_orig_print,
.bat_neigh_cmp = batadv_v_neigh_cmp,
.bat_neigh_is_equiv_or_better = batadv_v_neigh_is_eob,
.bat_neigh_free = batadv_v_neigh_free,
--
1.8.5.3