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Bluetooth: Mesh: Fix retries when establishing Friendship as LPN

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The Mesh Specification recommends retrying up to 6 times the Friend
Poll when establishing Friendship as LPN.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Johan Hedberg 2017-11-05 21:45:54 +02:00 committed by Johan Hedberg
parent b18f023e31
commit f51797335d
1 changed files with 11 additions and 0 deletions
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11
subsys/bluetooth/host/mesh/lpn.c
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@ -251,6 +251,10 @@ static void req_sent(struct net_buf *buf, int err)
{
struct bt_mesh_lpn *lpn = &bt_mesh.lpn;
#if defined(CONFIG_BT_MESH_DEBUG_LOW_POWER)
BT_DBG("buf %p err %d state %s", buf, err, state2str(lpn->state));
#endif
if (err) {
BT_ERR("Sending request failed (err %d)", err);
lpn->sent_req = 0;
@ -629,6 +633,13 @@ static void lpn_timeout(struct k_work *work)
k_delayed_work_submit(&lpn->timer, FRIEND_REQ_RETRY_TIMEOUT);
break;
case BT_MESH_LPN_ESTABLISHING:
if (lpn->req_attempts < 6) {
BT_WARN("Retrying first Friend Poll");
if (send_friend_poll() == 0) {
break;
}
}
BT_ERR("Timed out waiting for first Friend Update");
clear_friendship(false);
break;