Bluetooth: controller: Defer encryption setup if in conn update (2e365424) · Commits · Wenxi XU / zephyr

Workaround, defer peer initiated encryption while local initiated procedure with instant is not complete. Peer master has sent CONN_UPDATE_IND in response to CONN_PARAM_REQ, and also has initiated a Encryption Setup thereafter. In this case, avoid corruption of the connection update context by deferring the Encryption Setup. Signed-off-by:

Vinayak Kariappa Chettimada <vich@nordicsemi.no>

subsys/bluetooth/controller/ll_sw/ctrl.c

+11 −0

Original line number	Diff line number	Diff line
		@@ -2665,6 +2665,17 @@ isr_rx_conn_pkt_ctrl(struct radio_pdu_node_rx *node_rx,
		goto isr_rx_conn_unknown_rsp_send;
		}

		/* NOTE: workaround to defer peer initiated encryption while
		* local initiated procedure with instant is not complete.
		* Peer master has sent CONN_UPDATE_IND in response to
		* CONN_PARAM_REQ, and also has initiated a Encryption
		* Setup thereafter.
		*/
		if (_radio.conn_curr->llcp_req != _radio.conn_curr->llcp_ack) {
		nack = 1U;
		break;
		}

		#if defined(CONFIG_BT_CTLR_FAST_ENC)
		/* TODO: BT Spec. text: may finalize the sending of additional
		* data channel PDUs queued in the controller.

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