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Commit 627d2cc0 authored by David S. Miller's avatar David S. Miller
Browse files

Merge tag 'batman-adv-fix-for-davem' of git://git.open-mesh.org/linux-merge 



Included changes:
- ensure bonding is used (if enabled) for packets coming in the soft
  interface
- fix race condition to avoid orig_nodes to be deleted right after
  being added
- avoid false positive lockdep splats by assigning lockclass to
  the proper hashtable lock objects
- avoid miscounting of multicast 'disabled' nodes in the network
- fix memory leak in the Global Translation Table in case of
  originator interval change

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents 07ff890d 9d31b3ce

net/batman-adv/multicast.c

+7 −4
Original line number Diff line number Diff line
@@ -685,11 +685,13 @@ static void batadv_mcast_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv, 
		if (orig_initialized)

			atomic_dec(&bat_priv->mcast.num_disabled);

		orig->capabilities |= BATADV_ORIG_CAPA_HAS_MCAST;

	/* If mcast support is being switched off increase the disabled

	 * mcast node counter.

	/* If mcast support is being switched off or if this is an initial

	 * OGM without mcast support then increase the disabled mcast

	 * node counter.

	 */

	} else if (!orig_mcast_enabled &&

		   orig->capabilities & BATADV_ORIG_CAPA_HAS_MCAST) {

		   (orig->capabilities & BATADV_ORIG_CAPA_HAS_MCAST ||

		    !orig_initialized)) {

		atomic_inc(&bat_priv->mcast.num_disabled);

		orig->capabilities &= ~BATADV_ORIG_CAPA_HAS_MCAST;

	}
@@ -738,7 +740,8 @@ void batadv_mcast_purge_orig(struct batadv_orig_node *orig) 
{

	struct batadv_priv *bat_priv = orig->bat_priv;



	if (!(orig->capabilities & BATADV_ORIG_CAPA_HAS_MCAST))

	if (!(orig->capabilities & BATADV_ORIG_CAPA_HAS_MCAST) &&

	    orig->capa_initialized & BATADV_ORIG_CAPA_HAS_MCAST)

		atomic_dec(&bat_priv->mcast.num_disabled);



	batadv_mcast_want_unsnoop_update(bat_priv, orig, BATADV_NO_FLAGS);

net/batman-adv/network-coding.c

+1 −1
Original line number Diff line number Diff line
@@ -133,7 +133,7 @@ int batadv_nc_mesh_init(struct batadv_priv *bat_priv) 
	if (!bat_priv->nc.decoding_hash)

		goto err;



	batadv_hash_set_lock_class(bat_priv->nc.coding_hash,

	batadv_hash_set_lock_class(bat_priv->nc.decoding_hash,

				   &batadv_nc_decoding_hash_lock_class_key);



	INIT_DELAYED_WORK(&bat_priv->nc.work, batadv_nc_worker);

net/batman-adv/originator.c

+4 −3
Original line number Diff line number Diff line
@@ -570,9 +570,6 @@ static void batadv_orig_node_free_rcu(struct rcu_head *rcu) 


	batadv_frag_purge_orig(orig_node, NULL);



	batadv_tt_global_del_orig(orig_node->bat_priv, orig_node, -1,

				  "originator timed out");



	if (orig_node->bat_priv->bat_algo_ops->bat_orig_free)

		orig_node->bat_priv->bat_algo_ops->bat_orig_free(orig_node);
@@ -678,6 +675,7 @@ struct batadv_orig_node *batadv_orig_node_new(struct batadv_priv *bat_priv, 
	atomic_set(&orig_node->last_ttvn, 0);

	orig_node->tt_buff = NULL;

	orig_node->tt_buff_len = 0;

	orig_node->last_seen = jiffies;

	reset_time = jiffies - 1 - msecs_to_jiffies(BATADV_RESET_PROTECTION_MS);

	orig_node->bcast_seqno_reset = reset_time;

#ifdef CONFIG_BATMAN_ADV_MCAST
@@ -977,6 +975,9 @@ static void _batadv_purge_orig(struct batadv_priv *bat_priv) 
			if (batadv_purge_orig_node(bat_priv, orig_node)) {

				batadv_gw_node_delete(bat_priv, orig_node);

				hlist_del_rcu(&orig_node->hash_entry);

				batadv_tt_global_del_orig(orig_node->bat_priv,

							  orig_node, -1,

							  "originator timed out");

				batadv_orig_node_free_ref(orig_node);

				continue;

			}

net/batman-adv/routing.c

+4 −2
Original line number Diff line number Diff line
@@ -443,11 +443,13 @@ batadv_find_router(struct batadv_priv *bat_priv, 


	router = batadv_orig_router_get(orig_node, recv_if);



	if (!router)

		return router;



	/* only consider bonding for recv_if == BATADV_IF_DEFAULT (first hop)

	 * and if activated.

	 */

	if (recv_if == BATADV_IF_DEFAULT || !atomic_read(&bat_priv->bonding) ||

	    !router)

	if (!(recv_if == BATADV_IF_DEFAULT && atomic_read(&bat_priv->bonding)))

		return router;



	/* bonding: loop through the list of possible routers found