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mesh: Fixes existing friend lookup in Friend Request handling

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Currently, when handling a Friend Request message with `prev_addr` set,
we look up existing friend entry using `prev_addr` as the address.
However, `prev_addr` is the address of the requesting node's previous
friend, NOT the address of the requesting node itself. Therefore, we
should always look up existing friend entry using `rx->ctx.addr` as the
address.
This commit is contained in:
Michał Narajowski
2019-01-30 15:14:24 +01:00
parent 0b18846387
commit a25ef6092c
1 changed files with 1 additions and 7 deletions
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nimble/host/mesh/src/friend.c
+1 -7
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@@ -858,13 +858,7 @@ int bt_mesh_friend_req(struct bt_mesh_net_rx *rx, struct os_mbuf *buf)
}
old_friend = sys_be16_to_cpu(msg->prev_addr);
if (BT_MESH_ADDR_IS_UNICAST(old_friend)) {
frnd = bt_mesh_friend_find(rx->sub->net_idx, old_friend,
true, false);
} else {
frnd = bt_mesh_friend_find(rx->sub->net_idx, rx->ctx.addr,
true, false);
}
frnd = bt_mesh_friend_find(rx->sub->net_idx, rx->ctx.addr, true, false);
if (frnd) {
BT_WARN("Existing LPN re-requesting Friendship");