1 /** 2 * --------- 3 * |.##> <##.| Open Smart Card Development Platform (www.openscdp.org) 4 * |# #| 5 * |# #| Copyright (c) 1999-2018 CardContact Software & System Consulting 6 * |'##> <##'| Andreas Schwier, 32429 Minden, Germany (www.cardcontact.de) 7 * --------- 8 * 9 * This file is part of OpenSCDP. 10 * 11 * OpenSCDP is free software; you can redistribute it and/or modify 12 * it under the terms of the GNU General Public License version 2 as 13 * published by the Free Software Foundation. 14 * 15 * OpenSCDP is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with OpenSCDP; if not, write to the Free Software 22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 23 * 24 * @fileoverview Implementation of a ISO 7816-4 file system simulation 25 */ 26 27 var APDU = require('scsh/cardsim/APDU').APDU; 28 var FCP = require('scsh/cardsim/FCP').FCP; 29 var FSNode = require('scsh/cardsim/FSNode').FSNode; 30 31 32 33 /** 34 * Creates a LinearEF 35 * 36 * @class Class implementing linear EFs 37 * @constructor 38 * @param {FCP} the file control parameter 39 * @param {ByteString[]} records the array of records 40 */ 41 function LinearEF(fcp, records) { 42 if (!(fcp instanceof FCP)) { 43 throw new GPError("LinearEF", GPError.INVALID_TYPE, APDU.SW_GENERALERROR, "Argument 1 must be of type FCP"); 44 } 45 // print(typeof(records)); 46 if ((typeof(records) != "undefined") && (records != null) && (typeof(records) != "object")) { 47 throw new GPError("LinearEF", GPError.INVALID_TYPE, APDU.SW_GENERALERROR, "Argument 2 must be of type ByteString[]"); 48 } 49 50 FSNode.call(this, fcp); 51 this.records = records; 52 } 53 54 LinearEF.prototype = new FSNode(); 55 LinearEF.prototype.constructor = LinearEF; 56 57 exports.LinearEF = LinearEF; 58 59 60 61 /** 62 * Reads a record from a linear EF 63 * 64 * @param {APDU} apdu the APDU used for reading 65 * @param {Number} recno the record number 66 * @param {Number} qualifier the qualifier as encoded in bit b3 - b1 of P1 67 * @param {Number} length the length in bytes or 0 for all in short APDU or 65536 for all in extended APDUs 68 * @type ByteString 69 * @return the data read 70 */ 71 LinearEF.prototype.readRecord = function(apdu, recno, qualifier, length) { 72 if (typeof(recno) != "number") { 73 throw new GPError("LinearEF", GPError.INVALID_TYPE, APDU.SW_GENERALERROR, "Record number must be type Number"); 74 } 75 if (typeof(qualifier) != "number") { 76 throw new GPError("LinearEF", GPError.INVALID_TYPE, APDU.SW_GENERALERROR, "Qualifier must be type Number"); 77 } 78 79 if (recno == 0) { 80 throw new GPError("LinearEF", GPError.INVALID_DATA, APDU.SW_INCP1P2, "Current record referencing with P1=00 not support"); 81 } 82 recno--; 83 84 if (recno >= this.records.length) { 85 throw new GPError("LinearEF", GPError.INVALID_DATA, APDU.SW_RECORDNOTFOUND, "Record number exeeds number of defined records"); 86 } 87 88 if (qualifier != 4) { 89 throw new GPError("LinearEF", GPError.INVALID_DATA, APDU.SW_INCP1P2, "Only absolute record references supported"); 90 } 91 92 var record = this.records[recno]; 93 94 var rlen = length; 95 if ((length == 0) || (length == 65536)) { 96 rlen = record.length; 97 if ((length == 0) && (rlen > 256)) { 98 rlen = 256; 99 } 100 } 101 102 if (rlen > record.length) { 103 apdu.setSW(APDU.SW_EOF); 104 rlen = record.length; 105 } else { 106 apdu.setSW(APDU.SW_OK); 107 } 108 109 return record.left(rlen); 110 } 111