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54 lines
1.5 KiB
54 lines
1.5 KiB
From: Henning Rogge <hrogge@gmail.com>
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Date: Wed, 3 Feb 2016 13:58:36 +0100
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Subject: [PATCH] mac80211: Remove MPP table entries with MPath
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Make the mesh_path_del() function remove all mpp table entries
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that are proxied by the removed mesh path.
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Acked-by: Bob Copeland <me@bobcopeland.com>
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Signed-off-by: Henning Rogge <henning.rogge@fkie.fraunhofer.de>
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Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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---
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--- a/net/mac80211/mesh_pathtbl.c
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+++ b/net/mac80211/mesh_pathtbl.c
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@@ -835,6 +835,29 @@ void mesh_path_flush_by_nexthop(struct s
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rcu_read_unlock();
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}
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+static void mpp_flush_by_proxy(struct ieee80211_sub_if_data *sdata,
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+ const u8 *proxy)
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+{
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+ struct mesh_table *tbl;
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+ struct mesh_path *mpp;
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+ struct mpath_node *node;
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+ int i;
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+
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+ rcu_read_lock();
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+ read_lock_bh(&pathtbl_resize_lock);
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+ tbl = resize_dereference_mpp_paths();
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+ for_each_mesh_entry(tbl, node, i) {
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+ mpp = node->mpath;
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+ if (ether_addr_equal(mpp->mpp, proxy)) {
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+ spin_lock(&tbl->hashwlock[i]);
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+ __mesh_path_del(tbl, node);
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+ spin_unlock(&tbl->hashwlock[i]);
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+ }
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+ }
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+ read_unlock_bh(&pathtbl_resize_lock);
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+ rcu_read_unlock();
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+}
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+
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static void table_flush_by_iface(struct mesh_table *tbl,
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struct ieee80211_sub_if_data *sdata)
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{
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@@ -892,6 +915,9 @@ int mesh_path_del(struct ieee80211_sub_i
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int hash_idx;
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int err = 0;
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+ /* flush relevant mpp entries first */
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+ mpp_flush_by_proxy(sdata, addr);
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+
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read_lock_bh(&pathtbl_resize_lock);
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tbl = resize_dereference_mesh_paths();
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hash_idx = mesh_table_hash(addr, sdata, tbl);
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