bluetooth: tester: Add support for missing BTP L2CAP listen param

BTP_L2CAP_CONNECTION_RESPONSE_INSUFF_ENCRYPTION is used to indicate
encryption is required (but not authentication).

Signed-off-by: Szymon Janc <[email protected]>

Author: sjanc

tests/bluetooth/tester/src/btp/btp_l2cap.h

@@ -52,6 +52,7 @@ struct btp_l2cap_send_data_cmd {
 #define BTP_L2CAP_CONNECTION_RESPONSE_INSUFF_AUTHEN	0x01
 #define BTP_L2CAP_CONNECTION_RESPONSE_INSUFF_AUTHOR	0x02
 #define BTP_L2CAP_CONNECTION_RESPONSE_INSUFF_ENC_KEY	0x03
+#define BTP_L2CAP_CONNECTION_RESPONSE_INSUFF_ENCRYPTION 0x04
 
 #define BTP_L2CAP_LISTEN				0x05
 struct btp_l2cap_listen_cmd {

tests/bluetooth/tester/src/btp_l2cap.c

@@ -471,13 +471,22 @@ static uint8_t listen(const void *cmd, uint16_t cmd_len,
 	server->accept = accept;
 	server->psm = psm;
 
-	if (cp->response == BTP_L2CAP_CONNECTION_RESPONSE_INSUFF_ENC_KEY) {
+	switch (cp->response) {
+	case BTP_L2CAP_CONNECTION_RESPONSE_INSUFF_ENC_KEY:
 		/* TSPX_psm_encryption_key_size_required */
 		req_keysize = 16;
-	} else if (cp->response == BTP_L2CAP_CONNECTION_RESPONSE_INSUFF_AUTHOR) {
+		break;
+	case BTP_L2CAP_CONNECTION_RESPONSE_INSUFF_AUTHOR:
 		authorize_flag = true;
-	} else if (cp->response == BTP_L2CAP_CONNECTION_RESPONSE_INSUFF_AUTHEN) {
+		break;
+	case BTP_L2CAP_CONNECTION_RESPONSE_INSUFF_AUTHEN:
 		server->sec_level = BT_SECURITY_L3;
+		break;
+	case BTP_L2CAP_CONNECTION_RESPONSE_INSUFF_ENCRYPTION:
+		server->sec_level = BT_SECURITY_L2;
+		break;
+	default:
+		return BTP_STATUS_FAILED;
 	}
 
 	if (bt_l2cap_server_register(server) < 0) {