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Diffstat (limited to 'net/batman-adv/routing.c')
-rw-r--r--net/batman-adv/routing.c67
1 files changed, 39 insertions, 28 deletions
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 1b1dd41f5fe6..79f63cf11be4 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -1,5 +1,4 @@
-/*
- * Copyright (C) 2007-2012 B.A.T.M.A.N. contributors:
+/* Copyright (C) 2007-2012 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
*
@@ -16,7 +15,6 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA
- *
*/
#include "main.h"
@@ -165,8 +163,7 @@ void batadv_bonding_candidate_add(struct orig_node *orig_node,
if (neigh_node->tq_avg < router->tq_avg - BONDING_TQ_THRESHOLD)
goto candidate_del;
- /**
- * check if we have another candidate with the same mac address or
+ /* check if we have another candidate with the same mac address or
* interface. If we do, we won't select this candidate because of
* possible interference.
*/
@@ -177,7 +174,8 @@ void batadv_bonding_candidate_add(struct orig_node *orig_node,
continue;
/* we only care if the other candidate is even
- * considered as candidate. */
+ * considered as candidate.
+ */
if (list_empty(&tmp_neigh_node->bonding_list))
continue;
@@ -398,9 +396,7 @@ int batadv_recv_icmp_packet(struct sk_buff *skb, struct hard_iface *recv_if)
int hdr_size = sizeof(struct icmp_packet);
int ret = NET_RX_DROP;
- /**
- * we truncate all incoming icmp packets if they don't match our size
- */
+ /* we truncate all incoming icmp packets if they don't match our size */
if (skb->len >= sizeof(struct icmp_packet_rr))
hdr_size = sizeof(struct icmp_packet_rr);
@@ -474,7 +470,8 @@ out:
* robin fashion over the remaining interfaces.
*
* This method rotates the bonding list and increases the
- * returned router's refcount. */
+ * returned router's refcount.
+ */
static struct neigh_node *find_bond_router(struct orig_node *primary_orig,
const struct hard_iface *recv_if)
{
@@ -507,10 +504,12 @@ static struct neigh_node *find_bond_router(struct orig_node *primary_orig,
goto out;
/* selected should point to the next element
- * after the current router */
+ * after the current router
+ */
spin_lock_bh(&primary_orig->neigh_list_lock);
/* this is a list_move(), which unfortunately
- * does not exist as rcu version */
+ * does not exist as rcu version
+ */
list_del_rcu(&primary_orig->bond_list);
list_add_rcu(&primary_orig->bond_list,
&router->bonding_list);
@@ -525,7 +524,8 @@ out:
* remaining candidates which are not using
* this interface.
*
- * Increases the returned router's refcount */
+ * Increases the returned router's refcount
+ */
static struct neigh_node *find_ifalter_router(struct orig_node *primary_orig,
const struct hard_iface *recv_if)
{
@@ -546,11 +546,13 @@ static struct neigh_node *find_ifalter_router(struct orig_node *primary_orig,
continue;
/* if we don't have a router yet
- * or this one is better, choose it. */
+ * or this one is better, choose it.
+ */
if ((!router) ||
(tmp_neigh_node->tq_avg > router->tq_avg)) {
/* decrement refcount of
- * previously selected router */
+ * previously selected router
+ */
if (router)
batadv_neigh_node_free_ref(router);
@@ -602,7 +604,8 @@ int batadv_recv_tt_query(struct sk_buff *skb, struct hard_iface *recv_if)
batadv_inc_counter(bat_priv, BAT_CNT_TT_REQUEST_RX);
/* If we cannot provide an answer the tt_request is
- * forwarded */
+ * forwarded
+ */
if (!batadv_send_tt_response(bat_priv, tt_query)) {
bat_dbg(DBG_TT, bat_priv,
"Routing TT_REQUEST to %pM [%c]\n",
@@ -616,7 +619,8 @@ int batadv_recv_tt_query(struct sk_buff *skb, struct hard_iface *recv_if)
if (batadv_is_my_mac(tt_query->dst)) {
/* packet needs to be linearized to access the TT
- * changes */
+ * changes
+ */
if (skb_linearize(skb) < 0)
goto out;
/* skb_linearize() possibly changed skb->data */
@@ -694,7 +698,8 @@ int batadv_recv_roam_adv(struct sk_buff *skb, struct hard_iface *recv_if)
/* Roaming phase starts: I have new information but the ttvn has not
* been incremented yet. This flag will make me check all the incoming
- * packets for the correct destination. */
+ * packets for the correct destination.
+ */
bat_priv->tt_poss_change = true;
batadv_orig_node_free_ref(orig_node);
@@ -705,7 +710,8 @@ out:
/* find a suitable router for this originator, and use
* bonding if possible. increases the found neighbors
- * refcount.*/
+ * refcount.
+ */
struct neigh_node *batadv_find_router(struct bat_priv *bat_priv,
struct orig_node *orig_node,
const struct hard_iface *recv_if)
@@ -724,7 +730,8 @@ struct neigh_node *batadv_find_router(struct bat_priv *bat_priv,
goto err;
/* without bonding, the first node should
- * always choose the default router. */
+ * always choose the default router.
+ */
bonding_enabled = atomic_read(&bat_priv->bonding);
rcu_read_lock();
@@ -737,13 +744,14 @@ struct neigh_node *batadv_find_router(struct bat_priv *bat_priv,
goto return_router;
/* if we have something in the primary_addr, we can search
- * for a potential bonding candidate. */
+ * for a potential bonding candidate.
+ */
if (compare_eth(router_orig->primary_addr, zero_mac))
goto return_router;
/* find the orig_node which has the primary interface. might
- * even be the same as our router_orig in many cases */
-
+ * even be the same as our router_orig in many cases
+ */
if (compare_eth(router_orig->primary_addr, router_orig->orig)) {
primary_orig_node = router_orig;
} else {
@@ -756,14 +764,15 @@ struct neigh_node *batadv_find_router(struct bat_priv *bat_priv,
}
/* with less than 2 candidates, we can't do any
- * bonding and prefer the original router. */
+ * bonding and prefer the original router.
+ */
if (atomic_read(&primary_orig_node->bond_candidates) < 2)
goto return_router;
/* all nodes between should choose a candidate which
* is is not on the interface where the packet came
- * in. */
-
+ * in.
+ */
batadv_neigh_node_free_ref(router);
if (bonding_enabled)
@@ -1089,7 +1098,8 @@ int batadv_recv_bcast_packet(struct sk_buff *skb, struct hard_iface *recv_if)
goto spin_unlock;
/* mark broadcast in flood history, update window position
- * if required. */
+ * if required.
+ */
if (batadv_bit_get_packet(bat_priv, orig_node->bcast_bits, seq_diff, 1))
orig_node->last_bcast_seqno = ntohl(bcast_packet->seqno);
@@ -1165,6 +1175,7 @@ int batadv_recv_vis_packet(struct sk_buff *skb, struct hard_iface *recv_if)
}
/* We take a copy of the data in the packet, so we should
- always free the skbuf. */
+ * always free the skbuf.
+ */
return NET_RX_DROP;
}