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Bluetooth: host: GATT Lazyloading cleanup at disconnect

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Mark the ram version of the ccc_cfg as free after ccc has been
stored when a bonded device disconnects.
If the device use lazy loading of settings then ccc_cfg was not
cleaned up properly when a bonded device disconnects. This
resulted in the ccc system ran out of ccc_cfg resources after
having disconnected CONFIG_BT_MAX_CONN times.

Signed-off-by: Kim Sekkelund <ksek@oticon.com>
This commit is contained in:
Kim Sekkelund 2020-07-23 15:09:34 +02:00 • committed by Johan Hedberg
commit 41842dd174
1 changed files with 12 additions and 0 deletions
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12
subsys/bluetooth/host/gatt.c
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@ -4979,6 +4979,18 @@ void bt_gatt_disconnected(struct bt_conn *conn)
bt_gatt_store_cf(conn);
}
/* Make sure to clear the CCC entry when using lazy loading */
if (IS_ENABLED(CONFIG_BT_SETTINGS_CCC_LAZY_LOADING) &&
bt_addr_le_is_bonded(conn->id, &conn->le.dst)) {
struct addr_with_id addr_with_id = {
.addr = &conn->le.dst,
.id = conn->id,
};
bt_gatt_foreach_attr(0x0001, 0xffff,
remove_peer_from_attr,
&addr_with_id);
}
#if defined(CONFIG_BT_GATT_CLIENT)
remove_subscriptions(conn);
#endif /* CONFIG_BT_GATT_CLIENT */