Bluetooth: BAP: Update encrypt_state when BIG synced after bad code

Max Emde · Max Emde · commit 9cee0da2a5db · 2025-04-22T12:40:01.000+02:00
- When encrypt_state in a receive state of the scan delegator is
  BT_BAP_BIG_ENC_STATE_BAD_CODE, make sure that on synchronization
  encrypt_state is updated to BT_BAP_BIG_ENC_STATE_DEC, as this
  implies that a correct code was provided, so that the broadcast
  assistant is not asked for a correct code any longer.

Signed-off-by: Max Emde &lt;mxem@demant.com&gt;
diff --git a/subsys/bluetooth/audio/bap_broadcast_sink.c b/subsys/bluetooth/audio/bap_broadcast_sink.c
@@ -122,7 +122,8 @@ static void update_recv_state_big_synced(const struct bt_bap_broadcast_sink *sin
 		subgroup_param->bis_sync = sink_subgroup->bis_indexes & sink->indexes_bitfield;
 	}
 
-	if (recv_state->encrypt_state == BT_BAP_BIG_ENC_STATE_BCODE_REQ) {
+	if (recv_state->encrypt_state == BT_BAP_BIG_ENC_STATE_BCODE_REQ ||
+		recv_state->encrypt_state == BT_BAP_BIG_ENC_STATE_BAD_CODE) {
 		mod_src_param.encrypt_state = BT_BAP_BIG_ENC_STATE_DEC;
 	} else {
 		mod_src_param.encrypt_state = recv_state->encrypt_state;

Original file line number	Diff line number	Diff line change
`@@ -122,7 +122,8 @@ static void update_recv_state_big_synced(const struct bt_bap_broadcast_sink *sin`
`122`	`122`	`subgroup_param->bis_sync = sink_subgroup->bis_indexes & sink->indexes_bitfield;`
`123`	`123`	`}`
`124`	`124`
`125`		`- if (recv_state->encrypt_state == BT_BAP_BIG_ENC_STATE_BCODE_REQ) {`
	`125`	`+ if (recv_state->encrypt_state == BT_BAP_BIG_ENC_STATE_BCODE_REQ \|\|`
	`126`	`+ recv_state->encrypt_state == BT_BAP_BIG_ENC_STATE_BAD_CODE) {`
`126`	`127`	`mod_src_param.encrypt_state = BT_BAP_BIG_ENC_STATE_DEC;`
`127`	`128`	`} else {`
`128`	`129`	`mod_src_param.encrypt_state = recv_state->encrypt_state;`