def _is_matching_le_flow_control_credit(packet, cid):
frame = L2capMatchers.le_control_frame_with_code(
packet, LeCommandCode.LE_FLOW_CONTROL_CREDIT)
if frame is None:
return False
request = l2cap_packets.LeFlowControlCreditView(frame)
return request.GetCid() == cid
def _on_credit(self, l2cap_le_control_view):
credit_view = l2cap_packets.LeFlowControlCreditView(
l2cap_le_control_view)
cid = credit_view.GetCid()
if cid not in self._cid_to_cert_channels:
return
self._cid_to_cert_channels[
cid]._credits_left += credit_view.GetCredits()