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Commit	Line	Data
	1	//-----------------------------------------------------------------------------\r
	2	// Merlok - June 2011, 2012\r
	3	// Gerhard de Koning Gans - May 2008\r
	4	// Hagen Fritsch - June 2010\r
	5	// Midnitesnake - Dec 2013\r
	6	// Andy Davies - Apr 2014\r
	7	// Iceman - May 2014,2015,2016\r
	8	//\r
	9	// This code is licensed to you under the terms of the GNU GPL, version 2 or,\r
	10	// at your option, any later version. See the LICENSE.txt file for the text of\r
	11	// the license.\r
	12	//-----------------------------------------------------------------------------\r
	13	// Routines to support ISO 14443 type A.\r
	14	//-----------------------------------------------------------------------------\r
	15	\r
	16	#include "mifarecmd.h"\r
	17	\r
	18	//-----------------------------------------------------------------------------\r
	19	// Select, Authenticate, Read a MIFARE tag. \r
	20	// read block\r
	21	//-----------------------------------------------------------------------------\r
	22	void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)\r
	23	{\r
	24	// params\r
	25	uint8_t blockNo = arg0;\r
	26	uint8_t keyType = arg1;\r
	27	uint64_t ui64Key = 0;\r
	28	ui64Key = bytes_to_num(datain, 6);\r
	29	\r
	30	// variables\r
	31	byte_t isOK = 0;\r
	32	byte_t dataoutbuf[16] = {0x00};\r
	33	uint8_t uid[10] = {0x00};\r
	34	uint32_t cuid = 0;\r
	35	struct Crypto1State mpcs = {0, 0};\r
	36	struct Crypto1State *pcs;\r
	37	pcs = &mpcs;\r
	38	\r
	39	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
	40	\r
	41	clear_trace();\r
	42	set_tracing(true);\r
	43	\r
	44	LED_A_ON();\r
	45	LED_B_OFF();\r
	46	LED_C_OFF();\r
	47	\r
	48	while (true) {\r
	49	if(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) {\r
	50	if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");\r
	51	break;\r
	52	};\r
	53	\r
	54	if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {\r
	55	if (MF_DBGLEVEL >= 1) Dbprintf("Auth error");\r
	56	break;\r
	57	};\r
	58	\r
	59	if(mifare_classic_readblock(pcs, cuid, blockNo, dataoutbuf)) {\r
	60	if (MF_DBGLEVEL >= 1) Dbprintf("Read block error");\r
	61	break;\r
	62	};\r
	63	\r
	64	if(mifare_classic_halt(pcs, cuid)) {\r
	65	if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");\r
	66	break;\r
	67	};\r
	68	\r
	69	isOK = 1;\r
	70	break;\r
	71	}\r
	72	\r
	73	crypto1_destroy(pcs);\r
	74	\r
	75	if (MF_DBGLEVEL >= 2) DbpString("READ BLOCK FINISHED");\r
	76	\r
	77	LED_B_ON();\r
	78	cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16);\r
	79	LED_B_OFF();\r
	80	\r
	81	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
	82	LEDsoff();\r
	83	}\r
	84	\r
	85	void MifareUC_Auth(uint8_t arg0, uint8_t *keybytes){\r
	86	\r
	87	bool turnOffField = (arg0 == 1);\r
	88	\r
	89	LED_A_ON(); LED_B_OFF(); LED_C_OFF();\r
	90	\r
	91	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
	92	\r
	93	clear_trace();\r
	94	set_tracing(true);\r
	95	\r
	96	if(!iso14443a_select_card(NULL, NULL, NULL, true, 0)) {\r
	97	if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card");\r
	98	OnError(0);\r
	99	return;\r
	100	};\r
	101	\r
	102	if(!mifare_ultra_auth(keybytes)){\r
	103	if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication failed");\r
	104	OnError(1);\r
	105	return;\r
	106	}\r
	107	\r
	108	if (turnOffField) {\r
	109	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
	110	LEDsoff();\r
	111	}\r
	112	cmd_send(CMD_ACK,1,0,0,0,0);\r
	113	}\r
	114	\r
	115	// Arg0 = BlockNo,\r
	116	// Arg1 = UsePwd bool\r
	117	// datain = PWD bytes,\r
	118	void MifareUReadBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain)\r
	119	{\r
	120	uint8_t blockNo = arg0;\r
	121	byte_t dataout[16] = {0x00};\r
	122	bool useKey = (arg1 == 1); //UL_C\r
	123	bool usePwd = (arg1 == 2); //UL_EV1/NTAG\r
	124	\r
	125	LEDsoff();\r
	126	LED_A_ON();\r
	127	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
	128	\r
	129	clear_trace();\r
	130	set_tracing(true);\r
	131	\r
	132	int len = iso14443a_select_card(NULL, NULL, NULL, true, 0);\r
	133	if(!len) {\r
	134	if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%02X)",len);\r
	135	OnError(1);\r
	136	return;\r
	137	}\r
	138	\r
	139	// UL-C authentication\r
	140	if ( useKey ) {\r
	141	uint8_t key[16] = {0x00};\r
	142	memcpy(key, datain, sizeof(key) );\r
	143	\r
	144	if ( !mifare_ultra_auth(key) ) {\r
	145	OnError(1);\r
	146	return;\r
	147	}\r
	148	}\r
	149	\r
	150	// UL-EV1 / NTAG authentication\r
	151	if ( usePwd ) {\r
	152	uint8_t pwd[4] = {0x00};\r
	153	memcpy(pwd, datain, 4);\r
	154	uint8_t pack[4] = {0,0,0,0};\r
	155	if (!mifare_ul_ev1_auth(pwd, pack)) {\r
	156	OnError(1);\r
	157	return;\r
	158	}\r
	159	} \r
	160	\r
	161	if( mifare_ultra_readblock(blockNo, dataout) ) {\r
	162	if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block error");\r
	163	OnError(2);\r
	164	return;\r
	165	}\r
	166	\r
	167	if( mifare_ultra_halt() ) {\r
	168	if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error");\r
	169	OnError(3);\r
	170	return;\r
	171	}\r
	172	\r
	173	cmd_send(CMD_ACK,1,0,0,dataout,16);\r
	174	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
	175	LEDsoff();\r
	176	}\r
	177	\r
	178	//-----------------------------------------------------------------------------\r
	179	// Select, Authenticate, Read a MIFARE tag. \r
	180	// read sector (data = 4 x 16 bytes = 64 bytes, or 16 x 16 bytes = 256 bytes)\r
	181	//-----------------------------------------------------------------------------\r
	182	void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)\r
	183	{\r
	184	// params\r
	185	uint8_t sectorNo = arg0;\r
	186	uint8_t keyType = arg1;\r
	187	uint64_t ui64Key = 0;\r
	188	ui64Key = bytes_to_num(datain, 6);\r
	189	\r
	190	// variables\r
	191	byte_t isOK = 0;\r
	192	byte_t dataoutbuf[16 * 16];\r
	193	uint8_t uid[10] = {0x00};\r
	194	uint32_t cuid = 0;\r
	195	struct Crypto1State mpcs = {0, 0};\r
	196	struct Crypto1State *pcs;\r
	197	pcs = &mpcs;\r
	198	\r
	199	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
	200	\r
	201	clear_trace();\r
	202	set_tracing(true);\r
	203	\r
	204	LED_A_ON();\r
	205	LED_B_OFF();\r
	206	LED_C_OFF();\r
	207	\r
	208	isOK = 1;\r
	209	if(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) {\r
	210	isOK = 0;\r
	211	if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");\r
	212	}\r
	213	\r
	214	\r
	215	if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {\r
	216	isOK = 0;\r
	217	if (MF_DBGLEVEL >= 1) Dbprintf("Auth error");\r
	218	}\r
	219	\r
	220	for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {\r
	221	if(mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf + 16 * blockNo)) {\r
	222	isOK = 0;\r
	223	if (MF_DBGLEVEL >= 1) Dbprintf("Read sector %2d block %2d error", sectorNo, blockNo);\r
	224	break;\r
	225	}\r
	226	}\r
	227	\r
	228	if(mifare_classic_halt(pcs, cuid)) {\r
	229	if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");\r
	230	}\r
	231	\r
	232	if (MF_DBGLEVEL >= 2) DbpString("READ SECTOR FINISHED");\r
	233	\r
	234	crypto1_destroy(pcs);\r
	235	\r
	236	LED_B_ON();\r
	237	cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16*NumBlocksPerSector(sectorNo));\r
	238	LED_B_OFF();\r
	239	\r
	240	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
	241	LEDsoff();\r
	242	set_tracing(FALSE);\r
	243	}\r
	244	\r
	245	// arg0 = blockNo (start)\r
	246	// arg1 = Pages (number of blocks)\r
	247	// arg2 = useKey\r
	248	// datain = KEY bytes\r
	249	void MifareUReadCard(uint8_t arg0, uint16_t arg1, uint8_t arg2, uint8_t *datain)\r
	250	{\r
	251	LEDsoff();\r
	252	LED_A_ON();\r
	253	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
	254	\r
	255	// free eventually allocated BigBuf memory\r
	256	BigBuf_free(); BigBuf_Clear_ext(false);\r
	257	clear_trace();\r
	258	set_tracing(true);\r
	259	\r
	260	// params\r
	261	uint8_t blockNo = arg0;\r
	262	uint16_t blocks = arg1;\r
	263	bool useKey = (arg2 == 1); //UL_C\r
	264	bool usePwd = (arg2 == 2); //UL_EV1/NTAG\r
	265	uint32_t countblocks = 0;\r
	266	uint8_t *dataout = BigBuf_malloc(CARD_MEMORY_SIZE);\r
	267	if (dataout == NULL){\r
	268	Dbprintf("out of memory");\r
	269	OnError(1);\r
	270	return;\r
	271	}\r
	272	\r
	273	int len = iso14443a_select_card(NULL, NULL, NULL, true, 0);\r
	274	if (!len) {\r
	275	if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%d)",len);\r
	276	OnError(1);\r
	277	return;\r
	278	}\r
	279	\r
	280	// UL-C authentication\r
	281	if ( useKey ) {\r
	282	uint8_t key[16] = {0x00};\r
	283	memcpy(key, datain, sizeof(key) );\r
	284	\r
	285	if ( !mifare_ultra_auth(key) ) {\r
	286	OnError(1);\r
	287	return;\r
	288	}\r
	289	}\r
	290	\r
	291	// UL-EV1 / NTAG authentication\r
	292	if (usePwd) {\r
	293	uint8_t pwd[4] = {0x00};\r
	294	memcpy(pwd, datain, sizeof(pwd));\r
	295	uint8_t pack[4] = {0,0,0,0};\r
	296	\r
	297	if (!mifare_ul_ev1_auth(pwd, pack)){\r
	298	OnError(1);\r
	299	return; \r
	300	}\r
	301	}\r
	302	\r
	303	for (int i = 0; i < blocks; i++){\r
	304	if ((i*4) + 4 >= CARD_MEMORY_SIZE) {\r
	305	Dbprintf("Data exceeds buffer!!");\r
	306	break;\r
	307	}\r
	308	\r
	309	len = mifare_ultra_readblock(blockNo + i, dataout + 4 * i);\r
	310	\r
	311	if (len) {\r
	312	if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block %d error",i);\r
	313	// if no blocks read - error out\r
	314	if (i==0){\r
	315	OnError(2);\r
	316	return;\r
	317	} else {\r
	318	//stop at last successful read block and return what we got\r
	319	break;\r
	320	}\r
	321	} else {\r
	322	countblocks++;\r
	323	}\r
	324	}\r
	325	\r
	326	len = mifare_ultra_halt();\r
	327	if (len) {\r
	328	if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error");\r
	329	OnError(3);\r
	330	return;\r
	331	}\r
	332	\r
	333	if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Blocks read %d", countblocks);\r
	334	\r
	335	countblocks *= 4;\r
	336	\r
	337	cmd_send(CMD_ACK, 1, countblocks, BigBuf_max_traceLen(), 0, 0);\r
	338	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
	339	LEDsoff();\r
	340	BigBuf_free();\r
	341	set_tracing(FALSE);\r
	342	}\r
	343	\r
	344	//-----------------------------------------------------------------------------\r
	345	// Select, Authenticate, Write a MIFARE tag. \r
	346	// read block\r
	347	//-----------------------------------------------------------------------------\r
	348	void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)\r
	349	{\r
	350	// params\r
	351	uint8_t blockNo = arg0;\r
	352	uint8_t keyType = arg1;\r
	353	uint64_t ui64Key = 0;\r
	354	byte_t blockdata[16] = {0x00};\r
	355	\r
	356	ui64Key = bytes_to_num(datain, 6);\r
	357	memcpy(blockdata, datain + 10, 16);\r
	358	\r
	359	// variables\r
	360	byte_t isOK = 0;\r
	361	uint8_t uid[10] = {0x00};\r
	362	uint32_t cuid = 0;\r
	363	struct Crypto1State mpcs = {0, 0};\r
	364	struct Crypto1State *pcs;\r
	365	pcs = &mpcs;\r
	366	\r
	367	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
	368	\r
	369	clear_trace();\r
	370	set_tracing(true);\r
	371	\r
	372	LED_A_ON();\r
	373	LED_B_OFF();\r
	374	LED_C_OFF();\r
	375	\r
	376	while (true) {\r
	377	if(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) {\r
	378	if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");\r
	379	break;\r
	380	};\r
	381	\r
	382	if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {\r
	383	if (MF_DBGLEVEL >= 1) Dbprintf("Auth error");\r
	384	break;\r
	385	};\r
	386	\r
	387	if(mifare_classic_writeblock(pcs, cuid, blockNo, blockdata)) {\r
	388	if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");\r
	389	break;\r
	390	};\r
	391	\r
	392	if(mifare_classic_halt(pcs, cuid)) {\r
	393	if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");\r
	394	break;\r
	395	};\r
	396	\r
	397	isOK = 1;\r
	398	break;\r
	399	}\r
	400	\r
	401	crypto1_destroy(pcs);\r
	402	\r
	403	if (MF_DBGLEVEL >= 2) DbpString("WRITE BLOCK FINISHED");\r
	404	\r
	405	cmd_send(CMD_ACK,isOK,0,0,0,0);\r
	406	\r
	407	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
	408	LEDsoff();\r
	409	set_tracing(FALSE);\r
	410	}\r
	411	\r
	412	/* // Command not needed but left for future testing \r
	413	void MifareUWriteBlockCompat(uint8_t arg0, uint8_t *datain)\r
	414	{\r
	415	uint8_t blockNo = arg0;\r
	416	byte_t blockdata[16] = {0x00};\r
	417	\r
	418	memcpy(blockdata, datain, 16);\r
	419	\r
	420	uint8_t uid[10] = {0x00};\r
	421	\r
	422	LED_A_ON(); LED_B_OFF(); LED_C_OFF();\r
	423	\r
	424	clear_trace();\r
	425	set_tracing(true);\r
	426	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
	427	\r
	428	if(!iso14443a_select_card(uid, NULL, NULL, true, 0)) {\r
	429	if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");\r
	430	OnError(0);\r
	431	return;\r
	432	};\r
	433	\r
	434	if(mifare_ultra_writeblock_compat(blockNo, blockdata)) {\r
	435	if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");\r
	436	OnError(0);\r
	437	return; };\r
	438	\r
	439	if(mifare_ultra_halt()) {\r
	440	if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");\r
	441	OnError(0);\r
	442	return;\r
	443	};\r
	444	\r
	445	if (MF_DBGLEVEL >= 2) DbpString("WRITE BLOCK FINISHED");\r
	446	\r
	447	cmd_send(CMD_ACK,1,0,0,0,0);\r
	448	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
	449	LEDsoff();\r
	450	}\r
	451	*/\r
	452	\r
	453	// Arg0 : Block to write to.\r
	454	// Arg1 : 0 = use no authentication.\r
	455	// 1 = use 0x1A authentication.\r
	456	// 2 = use 0x1B authentication.\r
	457	// datain : 4 first bytes is data to be written.\r
	458	// : 4/16 next bytes is authentication key.\r
	459	void MifareUWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain)\r
	460	{\r
	461	uint8_t blockNo = arg0;\r
	462	bool useKey = (arg1 == 1); //UL_C\r
	463	bool usePwd = (arg1 == 2); //UL_EV1/NTAG\r
	464	byte_t blockdata[4] = {0x00};\r
	465	\r
	466	memcpy(blockdata, datain,4);\r
	467	\r
	468	LEDsoff();\r
	469	LED_A_ON();\r
	470	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
	471	\r
	472	clear_trace();\r
	473	set_tracing(true);\r
	474	\r
	475	if(!iso14443a_select_card(NULL, NULL, NULL, true, 0)) {\r
	476	if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");\r
	477	OnError(0);\r
	478	return;\r
	479	};\r
	480	\r
	481	// UL-C authentication\r
	482	if ( useKey ) {\r
	483	uint8_t key[16] = {0x00}; \r
	484	memcpy(key, datain+4, sizeof(key) );\r
	485	\r
	486	if ( !mifare_ultra_auth(key) ) {\r
	487	OnError(1);\r
	488	return; \r
	489	}\r
	490	}\r
	491	\r
	492	// UL-EV1 / NTAG authentication\r
	493	if (usePwd) { \r
	494	uint8_t pwd[4] = {0x00};\r
	495	memcpy(pwd, datain+4, 4);\r
	496	uint8_t pack[4] = {0,0,0,0};\r
	497	if (!mifare_ul_ev1_auth(pwd, pack)) {\r
	498	OnError(1);\r
	499	return; \r
	500	}\r
	501	}\r
	502	\r
	503	if(mifare_ultra_writeblock(blockNo, blockdata)) {\r
	504	if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");\r
	505	OnError(0);\r
	506	return;\r
	507	};\r
	508	\r
	509	if(mifare_ultra_halt()) {\r
	510	if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");\r
	511	OnError(0);\r
	512	return;\r
	513	};\r
	514	\r
	515	if (MF_DBGLEVEL >= 2) DbpString("WRITE BLOCK FINISHED");\r
	516	\r
	517	cmd_send(CMD_ACK,1,0,0,0,0);\r
	518	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
	519	LEDsoff();\r
	520	set_tracing(FALSE);\r
	521	}\r
	522	\r
	523	void MifareUSetPwd(uint8_t arg0, uint8_t *datain){\r
	524	\r
	525	uint8_t pwd[16] = {0x00};\r
	526	byte_t blockdata[4] = {0x00};\r
	527	\r
	528	memcpy(pwd, datain, 16);\r
	529	\r
	530	LED_A_ON(); LED_B_OFF(); LED_C_OFF();\r
	531	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
	532	\r
	533	clear_trace();\r
	534	set_tracing(true);\r
	535	\r
	536	if(!iso14443a_select_card(NULL, NULL, NULL, true, 0)) {\r
	537	if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");\r
	538	OnError(0);\r
	539	return;\r
	540	};\r
	541	\r
	542	blockdata[0] = pwd[7];\r
	543	blockdata[1] = pwd[6];\r
	544	blockdata[2] = pwd[5];\r
	545	blockdata[3] = pwd[4];\r
	546	if(mifare_ultra_writeblock( 44, blockdata)) {\r
	547	if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");\r
	548	OnError(44);\r
	549	return;\r
	550	};\r
	551	\r
	552	blockdata[0] = pwd[3];\r
	553	blockdata[1] = pwd[2];\r
	554	blockdata[2] = pwd[1];\r
	555	blockdata[3] = pwd[0];\r
	556	if(mifare_ultra_writeblock( 45, blockdata)) {\r
	557	if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");\r
	558	OnError(45);\r
	559	return;\r
	560	};\r
	561	\r
	562	blockdata[0] = pwd[15];\r
	563	blockdata[1] = pwd[14];\r
	564	blockdata[2] = pwd[13];\r
	565	blockdata[3] = pwd[12];\r
	566	if(mifare_ultra_writeblock( 46, blockdata)) {\r
	567	if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");\r
	568	OnError(46);\r
	569	return;\r
	570	};\r
	571	\r
	572	blockdata[0] = pwd[11];\r
	573	blockdata[1] = pwd[10];\r
	574	blockdata[2] = pwd[9];\r
	575	blockdata[3] = pwd[8];\r
	576	if(mifare_ultra_writeblock( 47, blockdata)) {\r
	577	if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");\r
	578	OnError(47);\r
	579	return;\r
	580	}; \r
	581	\r
	582	if(mifare_ultra_halt()) {\r
	583	if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");\r
	584	OnError(0);\r
	585	return;\r
	586	};\r
	587	\r
	588	cmd_send(CMD_ACK,1,0,0,0,0);\r
	589	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
	590	LEDsoff();\r
	591	set_tracing(FALSE);\r
	592	}\r
	593	\r
	594	// Return 1 if the nonce is invalid else return 0\r
	595	int valid_nonce(uint32_t Nt, uint32_t NtEnc, uint32_t Ks1, uint8_t *parity) {\r
	596	return ((oddparity8((Nt >> 24) & 0xFF) == ((parity[0]) ^ oddparity8((NtEnc >> 24) & 0xFF) ^ BIT(Ks1,16))) & \\r
	597	(oddparity8((Nt >> 16) & 0xFF) == ((parity[1]) ^ oddparity8((NtEnc >> 16) & 0xFF) ^ BIT(Ks1,8))) & \\r
	598	(oddparity8((Nt >> 8) & 0xFF) == ((parity[2]) ^ oddparity8((NtEnc >> 8) & 0xFF) ^ BIT(Ks1,0)))) ? 1 : 0;\r
	599	}\r
	600	\r
	601	\r
	602	//-----------------------------------------------------------------------------\r
	603	// acquire encrypted nonces in order to perform the attack described in\r
	604	// Carlo Meijer, Roel Verdult, "Ciphertext-only Cryptanalysis on Hardened\r
	605	// Mifare Classic Cards" in Proceedings of the 22nd ACM SIGSAC Conference on \r
	606	// Computer and Communications Security, 2015\r
	607	//-----------------------------------------------------------------------------\r
	608	#define AUTHENTICATION_TIMEOUT 848 //848 // card times out 1ms after wrong authentication (according to NXP documentation)\r
	609	#define PRE_AUTHENTICATION_LEADTIME 400 // some (non standard) cards need a pause after select before they are ready for first authentication \r
	610	\r
	611	void MifareAcquireEncryptedNonces(uint32_t arg0, uint32_t arg1, uint32_t flags, uint8_t *datain)\r
	612	{\r
	613	uint64_t ui64Key = 0;\r
	614	uint8_t uid[10] = {0x00};\r
	615	uint32_t cuid = 0;\r
	616	uint8_t cascade_levels = 0;\r
	617	struct Crypto1State mpcs = {0, 0};\r
	618	struct Crypto1State *pcs;\r
	619	pcs = &mpcs;\r
	620	uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE] = {0x00};\r
	621	int16_t isOK = 0;\r
	622	uint8_t par_enc[1] = {0x00};\r
	623	uint8_t nt_par_enc = 0;\r
	624	uint8_t buf[USB_CMD_DATA_SIZE] = {0x00};\r
	625	uint32_t timeout = 0;\r
	626	\r
	627	uint8_t blockNo = arg0 & 0xff;\r
	628	uint8_t keyType = (arg0 >> 8) & 0xff;\r
	629	uint8_t targetBlockNo = arg1 & 0xff;\r
	630	uint8_t targetKeyType = (arg1 >> 8) & 0xff;\r
	631	ui64Key = bytes_to_num(datain, 6);\r
	632	bool initialize = flags & 0x0001;\r
	633	bool slow = flags & 0x0002;\r
	634	bool field_off = flags & 0x0004;\r
	635	\r
	636	LED_A_ON();\r
	637	LED_C_OFF();\r
	638	\r
	639	BigBuf_free(); BigBuf_Clear_ext(false); \r
	640	clear_trace();\r
	641	set_tracing(FALSE);\r
	642	\r
	643	if (initialize) {\r
	644	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
	645	}\r
	646	\r
	647	LED_C_ON();\r
	648	\r
	649	uint8_t dummy_answer = 0; \r
	650	uint16_t num_nonces = 0;\r
	651	bool have_uid = false;\r
	652	for (uint16_t i = 0; i <= USB_CMD_DATA_SIZE - 9; ) {\r
	653	\r
	654	// Test if the action was cancelled\r
	655	if(BUTTON_PRESS()) {\r
	656	isOK = 2;\r
	657	field_off = true;\r
	658	break;\r
	659	}\r
	660	\r
	661	if (!have_uid) { // need a full select cycle to get the uid first\r
	662	iso14a_card_select_t card_info; \r
	663	if(!iso14443a_select_card(uid, &card_info, &cuid, true, 0)) {\r
	664	if (MF_DBGLEVEL >= 1) Dbprintf("AcquireNonces: Can't select card (ALL)");\r
	665	continue;\r
	666	}\r
	667	switch (card_info.uidlen) {\r
	668	case 4 : cascade_levels = 1; break;\r
	669	case 7 : cascade_levels = 2; break;\r
	670	case 10: cascade_levels = 3; break;\r
	671	default: break;\r
	672	}\r
	673	have_uid = true; \r
	674	} else { // no need for anticollision. We can directly select the card\r
	675	if(!iso14443a_select_card(uid, NULL, NULL, false, cascade_levels)) {\r
	676	if (MF_DBGLEVEL >= 1) Dbprintf("AcquireNonces: Can't select card (UID)");\r
	677	continue;\r
	678	}\r
	679	}\r
	680	\r
	681	if (slow) {\r
	682	timeout = GetCountSspClk() + PRE_AUTHENTICATION_LEADTIME;\r
	683	while(GetCountSspClk() < timeout);\r
	684	}\r
	685	\r
	686	uint32_t nt1;\r
	687	if (mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, NULL)) {\r
	688	if (MF_DBGLEVEL >= 1) Dbprintf("AcquireNonces: Auth1 error");\r
	689	continue;\r
	690	}\r
	691	\r
	692	// nested authentication\r
	693	uint16_t len = mifare_sendcmd_short(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, par_enc, NULL);\r
	694	if (len != 4) {\r
	695	if (MF_DBGLEVEL >= 1) Dbprintf("AcquireNonces: Auth2 error len=%d", len);\r
	696	continue;\r
	697	}\r
	698	\r
	699	// send a dummy byte as reader response in order to trigger the cards authentication timeout\r
	700	ReaderTransmit(&dummy_answer, 1, NULL);\r
	701	timeout = GetCountSspClk() + AUTHENTICATION_TIMEOUT;\r
	702	\r
	703	num_nonces++;\r
	704	if (num_nonces % 2) {\r
	705	memcpy(buf+i, receivedAnswer, 4);\r
	706	nt_par_enc = par_enc[0] & 0xf0;\r
	707	} else {\r
	708	nt_par_enc \|= par_enc[0] >> 4;\r
	709	memcpy(buf+i+4, receivedAnswer, 4);\r
	710	memcpy(buf+i+8, &nt_par_enc, 1);\r
	711	i += 9;\r
	712	}\r
	713	// wait for the card to become ready again\r
	714	while(GetCountSspClk() < timeout); \r
	715	}\r
	716	\r
	717	LED_C_OFF();\r
	718	crypto1_destroy(pcs); \r
	719	LED_B_ON();\r
	720	cmd_send(CMD_ACK, isOK, cuid, num_nonces, buf, sizeof(buf));\r
	721	LED_B_OFF();\r
	722	\r
	723	if (MF_DBGLEVEL >= 3) DbpString("AcquireEncryptedNonces finished");\r
	724	\r
	725	if (field_off) {\r
	726	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
	727	LEDsoff();\r
	728	set_tracing(FALSE);\r
	729	}\r
	730	}\r
	731	\r
	732	\r
	733	//-----------------------------------------------------------------------------\r
	734	// MIFARE nested authentication. \r
	735	// \r
	736	//-----------------------------------------------------------------------------\r
	737	void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *datain)\r
	738	{\r
	739	// params\r
	740	uint8_t blockNo = arg0 & 0xff;\r
	741	uint8_t keyType = (arg0 >> 8) & 0xff;\r
	742	uint8_t targetBlockNo = arg1 & 0xff;\r
	743	uint8_t targetKeyType = (arg1 >> 8) & 0xff;\r
	744	uint64_t ui64Key = 0;\r
	745	\r
	746	ui64Key = bytes_to_num(datain, 6);\r
	747	\r
	748	// variables\r
	749	uint16_t rtr, i, j, len;\r
	750	uint16_t davg = 0;\r
	751	static uint16_t dmin, dmax;\r
	752	uint8_t uid[10] = {0x00};\r
	753	uint32_t cuid = 0, nt1, nt2, nttmp, nttest, ks1;\r
	754	uint8_t par[1] = {0x00};\r
	755	uint32_t target_nt[2] = {0x00}, target_ks[2] = {0x00};\r
	756	\r
	757	uint8_t par_array[4] = {0x00};\r
	758	uint16_t ncount = 0;\r
	759	struct Crypto1State mpcs = {0, 0};\r
	760	struct Crypto1State *pcs;\r
	761	pcs = &mpcs;\r
	762	uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE] = {0x00};\r
	763	\r
	764	uint32_t auth1_time, auth2_time;\r
	765	static uint16_t delta_time = 0;\r
	766	\r
	767	LED_A_ON();\r
	768	LED_C_OFF();\r
	769	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
	770	\r
	771	// free eventually allocated BigBuf memory\r
	772	BigBuf_free(); BigBuf_Clear_ext(false);\r
	773	\r
	774	if (calibrate) clear_trace();\r
	775	set_tracing(true);\r
	776	\r
	777	// statistics on nonce distance\r
	778	int16_t isOK = 0;\r
	779	#define NESTED_MAX_TRIES 12\r
	780	uint16_t unsuccessfull_tries = 0;\r
	781	if (calibrate) { // for first call only. Otherwise reuse previous calibration\r
	782	LED_B_ON();\r
	783	WDT_HIT();\r
	784	\r
	785	davg = dmax = 0;\r
	786	dmin = 2000;\r
	787	delta_time = 0;\r
	788	\r
	789	for (rtr = 0; rtr < 17; rtr++) {\r
	790	\r
	791	// Test if the action was cancelled\r
	792	if(BUTTON_PRESS()) {\r
	793	isOK = -2;\r
	794	break;\r
	795	}\r
	796	\r
	797	// prepare next select. No need to power down the card.\r
	798	if(mifare_classic_halt(pcs, cuid)) {\r
	799	if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Halt error");\r
	800	rtr--;\r
	801	continue;\r
	802	}\r
	803	\r
	804	if(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) {\r
	805	if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Can't select card");\r
	806	rtr--;\r
	807	continue;\r
	808	};\r
	809	\r
	810	auth1_time = 0;\r
	811	if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, &auth1_time)) {\r
	812	if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Auth1 error");\r
	813	rtr--;\r
	814	continue;\r
	815	};\r
	816	auth2_time = (delta_time) ? auth1_time + delta_time : 0;\r
	817	\r
	818	if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_NESTED, &nt2, &auth2_time)) {\r
	819	if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Auth2 error");\r
	820	rtr--;\r
	821	continue;\r
	822	};\r
	823	\r
	824	nttmp = prng_successor(nt1, 100); //NXP Mifare is typical around 840,but for some unlicensed/compatible mifare card this can be 160\r
	825	for (i = 101; i < 1200; i++) {\r
	826	nttmp = prng_successor(nttmp, 1);\r
	827	if (nttmp == nt2) break;\r
	828	}\r
	829	\r
	830	if (i != 1200) {\r
	831	if (rtr != 0) {\r
	832	davg += i;\r
	833	dmin = MIN(dmin, i);\r
	834	dmax = MAX(dmax, i);\r
	835	}\r
	836	else {\r
	837	delta_time = auth2_time - auth1_time + 32; // allow some slack for proper timing\r
	838	}\r
	839	if (MF_DBGLEVEL >= 3) Dbprintf("Nested: calibrating... ntdist=%d", i);\r
	840	} else {\r
	841	unsuccessfull_tries++;\r
	842	if (unsuccessfull_tries > NESTED_MAX_TRIES) { // card isn't vulnerable to nested attack (random numbers are not predictable)\r
	843	isOK = -3;\r
	844	}\r
	845	}\r
	846	}\r
	847	\r
	848	davg = (davg + (rtr - 1)/2) / (rtr - 1);\r
	849	\r
	850	if (MF_DBGLEVEL >= 3) Dbprintf("rtr=%d isOK=%d min=%d max=%d avg=%d, delta_time=%d", rtr, isOK, dmin, dmax, davg, delta_time);\r
	851	\r
	852	dmin = davg - 2;\r
	853	dmax = davg + 2;\r
	854	\r
	855	LED_B_OFF();\r
	856	}\r
	857	// ------------------------------------------------------------------------------------------------- \r
	858	\r
	859	LED_C_ON();\r
	860	\r
	861	// get crypted nonces for target sector\r
	862	for(i=0; i < 2 && !isOK; i++) { // look for exactly two different nonces\r
	863	\r
	864	target_nt[i] = 0;\r
	865	while(target_nt[i] == 0) { // continue until we have an unambiguous nonce\r
	866	\r
	867	// prepare next select. No need to power down the card.\r
	868	if(mifare_classic_halt(pcs, cuid)) {\r
	869	if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Halt error");\r
	870	continue;\r
	871	}\r
	872	\r
	873	if(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) {\r
	874	if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Can't select card");\r
	875	continue;\r
	876	};\r
	877	\r
	878	auth1_time = 0;\r
	879	if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, &auth1_time)) {\r
	880	if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Auth1 error");\r
	881	continue;\r
	882	};\r
	883	\r
	884	// nested authentication\r
	885	auth2_time = auth1_time + delta_time;\r
	886	\r
	887	len = mifare_sendcmd_short(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, par, &auth2_time);\r
	888	if (len != 4) {\r
	889	if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Auth2 error len=%d", len);\r
	890	continue;\r
	891	};\r
	892	\r
	893	nt2 = bytes_to_num(receivedAnswer, 4); \r
	894	if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: Testing nt1=%08x nt2enc=%08x nt2par=%02x", i+1, nt1, nt2, par[0]);\r
	895	\r
	896	// Parity validity check\r
	897	// for (j = 0; j < 4; j++) {\r
	898	// par_array[j] = (oddparity8(receivedAnswer[j]) != ((par[0] >> (7-j)) & 0x01));\r
	899	// }\r
	900	par_array[0] = (oddparity8(receivedAnswer[0]) != ((par[0] >> (7-0)) & 0x01));\r
	901	par_array[1] = (oddparity8(receivedAnswer[1]) != ((par[0] >> (7-1)) & 0x01));\r
	902	par_array[2] = (oddparity8(receivedAnswer[2]) != ((par[0] >> (7-2)) & 0x01));\r
	903	par_array[3] = (oddparity8(receivedAnswer[3]) != ((par[0] >> (7-3)) & 0x01));\r
	904	\r
	905	ncount = 0;\r
	906	nttest = prng_successor(nt1, dmin - 1);\r
	907	for (j = dmin; j < dmax + 1; j++) {\r
	908	nttest = prng_successor(nttest, 1);\r
	909	ks1 = nt2 ^ nttest;\r
	910	\r
	911	if (valid_nonce(nttest, nt2, ks1, par_array)){\r
	912	if (ncount > 0) { // we are only interested in disambiguous nonces, try again\r
	913	if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: dismissed (ambigous), ntdist=%d", i+1, j);\r
	914	target_nt[i] = 0;\r
	915	break;\r
	916	}\r
	917	target_nt[i] = nttest;\r
	918	target_ks[i] = ks1;\r
	919	ncount++;\r
	920	if (i == 1 && target_nt[1] == target_nt[0]) { // we need two different nonces\r
	921	target_nt[i] = 0;\r
	922	if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#2: dismissed (= nonce#1), ntdist=%d", j);\r
	923	break;\r
	924	}\r
	925	if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: valid, ntdist=%d", i+1, j);\r
	926	}\r
	927	}\r
	928	if (target_nt[i] == 0 && j == dmax+1 && MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: dismissed (all invalid)", i+1);\r
	929	}\r
	930	}\r
	931	\r
	932	LED_C_OFF();\r
	933	\r
	934	crypto1_destroy(pcs);\r
	935	\r
	936	byte_t buf[4 + 4 * 4] = {0};\r
	937	memcpy(buf, &cuid, 4);\r
	938	memcpy(buf+4, &target_nt[0], 4);\r
	939	memcpy(buf+8, &target_ks[0], 4);\r
	940	memcpy(buf+12, &target_nt[1], 4);\r
	941	memcpy(buf+16, &target_ks[1], 4);\r
	942	\r
	943	LED_B_ON();\r
	944	cmd_send(CMD_ACK, isOK, 0, targetBlockNo + (targetKeyType * 0x100), buf, sizeof(buf));\r
	945	LED_B_OFF();\r
	946	\r
	947	if (MF_DBGLEVEL >= 3) DbpString("NESTED FINISHED");\r
	948	\r
	949	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
	950	LEDsoff();\r
	951	set_tracing(FALSE);\r
	952	}\r
	953	\r
	954	//-----------------------------------------------------------------------------\r
	955	// MIFARE check keys. key count up to 85. \r
	956	// \r
	957	//-----------------------------------------------------------------------------\r
	958	void MifareChkKeys(uint16_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain) {\r
	959	uint8_t blockNo = arg0 & 0xff;\r
	960	uint8_t keyType = (arg0 >> 8) & 0xff;\r
	961	bool clearTrace = arg1;\r
	962	uint8_t keyCount = arg2;\r
	963	uint64_t ui64Key = 0;\r
	964	\r
	965	bool have_uid = FALSE;\r
	966	uint8_t cascade_levels = 0;\r
	967	uint32_t timeout = 0;\r
	968	\r
	969	int i;\r
	970	byte_t isOK = 0;\r
	971	uint8_t uid[10] = {0x00};\r
	972	uint32_t cuid = 0;\r
	973	struct Crypto1State mpcs = {0, 0};\r
	974	struct Crypto1State *pcs;\r
	975	pcs = &mpcs;\r
	976	\r
	977	// save old debuglevel, and tempory turn off dbg printing. speedissues.\r
	978	int OLD_MF_DBGLEVEL = MF_DBGLEVEL; \r
	979	MF_DBGLEVEL = MF_DBG_NONE;\r
	980	\r
	981	LEDsoff();\r
	982	LED_A_ON();\r
	983	\r
	984	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
	985	\r
	986	if (clearTrace) \r
	987	clear_trace();\r
	988	\r
	989	set_tracing(TRUE);\r
	990	\r
	991	for (i = 0; i < keyCount; ++i) {\r
	992	\r
	993	//mifare_classic_halt(pcs, cuid);\r
	994	\r
	995	// this part is from Piwi's faster nonce collecting part in Hardnested.\r
	996	if (!have_uid) { // need a full select cycle to get the uid first\r
	997	iso14a_card_select_t card_info; \r
	998	if(!iso14443a_select_card(uid, &card_info, &cuid, true, 0)) {\r
	999	if (MF_DBGLEVEL >= 1) Dbprintf("ChkKeys: Can't select card (ALL)");\r
	1000	break;\r
	1001	}\r
	1002	switch (card_info.uidlen) {\r
	1003	case 4 : cascade_levels = 1; break;\r
	1004	case 7 : cascade_levels = 2; break;\r
	1005	case 10: cascade_levels = 3; break;\r
	1006	default: break;\r
	1007	}\r
	1008	have_uid = TRUE; \r
	1009	} else { // no need for anticollision. We can directly select the card\r
	1010	if(!iso14443a_select_card(uid, NULL, NULL, false, cascade_levels)) {\r
	1011	if (MF_DBGLEVEL >= 1) Dbprintf("ChkKeys: Can't select card (UID)");\r
	1012	continue;\r
	1013	}\r
	1014	}\r
	1015	\r
	1016	ui64Key = bytes_to_num(datain + i * 6, 6);\r
	1017	\r
	1018	if (mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {\r
	1019	\r
	1020	uint8_t dummy_answer = 0;\r
	1021	ReaderTransmit(&dummy_answer, 1, NULL);\r
	1022	timeout = GetCountSspClk() + AUTHENTICATION_TIMEOUT;\r
	1023	\r
	1024	// wait for the card to become ready again\r
	1025	while(GetCountSspClk() < timeout);\r
	1026	\r
	1027	continue;\r
	1028	}\r
	1029	isOK = 1;\r
	1030	break;\r
	1031	}\r
	1032	\r
	1033	LED_B_ON();\r
	1034	cmd_send(CMD_ACK, isOK, 0, 0, datain + i * 6, 6);\r
	1035	\r
	1036	// restore debug level\r
	1037	MF_DBGLEVEL = OLD_MF_DBGLEVEL; \r
	1038	\r
	1039	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
	1040	LEDsoff();\r
	1041	set_tracing(FALSE);\r
	1042	crypto1_destroy(pcs);\r
	1043	}\r
	1044	\r
	1045	//-----------------------------------------------------------------------------\r
	1046	// MIFARE commands set debug level\r
	1047	// \r
	1048	//-----------------------------------------------------------------------------\r
	1049	void MifareSetDbgLvl(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\r
	1050	MF_DBGLEVEL = arg0;\r
	1051	Dbprintf("Debug level: %d", MF_DBGLEVEL);\r
	1052	}\r
	1053	\r
	1054	//-----------------------------------------------------------------------------\r
	1055	// Work with emulator memory\r
	1056	// \r
	1057	// Note: we call FpgaDownloadAndGo(FPGA_BITSTREAM_HF) here although FPGA is not\r
	1058	// involved in dealing with emulator memory. But if it is called later, it might\r
	1059	// destroy the Emulator Memory.\r
	1060	//-----------------------------------------------------------------------------\r
	1061	\r
	1062	void MifareEMemClr(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\r
	1063	FpgaDownloadAndGo(FPGA_BITSTREAM_HF);\r
	1064	emlClearMem();\r
	1065	}\r
	1066	\r
	1067	void MifareEMemSet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\r
	1068	FpgaDownloadAndGo(FPGA_BITSTREAM_HF);\r
	1069	if (arg2==0) arg2 = 16; // backwards compat... default bytewidth\r
	1070	emlSetMem_xt(datain, arg0, arg1, arg2); // data, block num, blocks count, block byte width\r
	1071	}\r
	1072	\r
	1073	void MifareEMemGet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\r
	1074	FpgaDownloadAndGo(FPGA_BITSTREAM_HF);\r
	1075	byte_t buf[USB_CMD_DATA_SIZE] = {0x00};\r
	1076	emlGetMem(buf, arg0, arg1); // data, block num, blocks count (max 4)\r
	1077	\r
	1078	LED_B_ON();\r
	1079	cmd_send(CMD_ACK,arg0,arg1,0,buf,USB_CMD_DATA_SIZE);\r
	1080	LED_B_OFF();\r
	1081	}\r
	1082	\r
	1083	//-----------------------------------------------------------------------------\r
	1084	// Load a card into the emulator memory\r
	1085	// \r
	1086	//-----------------------------------------------------------------------------\r
	1087	void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\r
	1088	uint8_t numSectors = arg0;\r
	1089	uint8_t keyType = arg1;\r
	1090	uint64_t ui64Key = 0;\r
	1091	uint32_t cuid = 0;\r
	1092	struct Crypto1State mpcs = {0, 0};\r
	1093	struct Crypto1State *pcs;\r
	1094	pcs = &mpcs;\r
	1095	\r
	1096	// variables\r
	1097	byte_t dataoutbuf[16] = {0x00};\r
	1098	byte_t dataoutbuf2[16] = {0x00};\r
	1099	uint8_t uid[10] = {0x00};\r
	1100	\r
	1101	LED_A_ON();\r
	1102	LED_B_OFF();\r
	1103	LED_C_OFF();\r
	1104	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
	1105	\r
	1106	clear_trace();\r
	1107	set_tracing(TRUE);\r
	1108	\r
	1109	bool isOK = true;\r
	1110	\r
	1111	if(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) {\r
	1112	isOK = false;\r
	1113	if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");\r
	1114	}\r
	1115	\r
	1116	for (uint8_t sectorNo = 0; isOK && sectorNo < numSectors; sectorNo++) {\r
	1117	ui64Key = emlGetKey(sectorNo, keyType);\r
	1118	if (sectorNo == 0){\r
	1119	if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {\r
	1120	isOK = false;\r
	1121	if (MF_DBGLEVEL >= 1) Dbprintf("Sector[%2d]. Auth error", sectorNo);\r
	1122	break;\r
	1123	}\r
	1124	} else {\r
	1125	if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_NESTED)) {\r
	1126	isOK = false;\r
	1127	if (MF_DBGLEVEL >= 1) Dbprintf("Sector[%2d]. Auth nested error", sectorNo);\r
	1128	break;\r
	1129	}\r
	1130	}\r
	1131	\r
	1132	for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {\r
	1133	if(isOK && mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf)) {\r
	1134	isOK = false;\r
	1135	if (MF_DBGLEVEL >= 1) Dbprintf("Error reading sector %2d block %2d", sectorNo, blockNo);\r
	1136	break;\r
	1137	}\r
	1138	if (isOK) {\r
	1139	if (blockNo < NumBlocksPerSector(sectorNo) - 1) {\r
	1140	emlSetMem(dataoutbuf, FirstBlockOfSector(sectorNo) + blockNo, 1);\r
	1141	} else { // sector trailer, keep the keys, set only the AC\r
	1142	emlGetMem(dataoutbuf2, FirstBlockOfSector(sectorNo) + blockNo, 1);\r
	1143	memcpy(&dataoutbuf2[6], &dataoutbuf[6], 4);\r
	1144	emlSetMem(dataoutbuf2, FirstBlockOfSector(sectorNo) + blockNo, 1);\r
	1145	}\r
	1146	}\r
	1147	}\r
	1148	\r
	1149	}\r
	1150	\r
	1151	if(mifare_classic_halt(pcs, cuid))\r
	1152	if (MF_DBGLEVEL >= 1)\r
	1153	Dbprintf("Halt error");\r
	1154	\r
	1155	// ----------------------------- crypto1 destroy\r
	1156	crypto1_destroy(pcs);\r
	1157	\r
	1158	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
	1159	LEDsoff();\r
	1160	\r
	1161	if (MF_DBGLEVEL >= 2) DbpString("EMUL FILL SECTORS FINISHED");\r
	1162	\r
	1163	set_tracing(FALSE);\r
	1164	}\r
	1165	\r
	1166	\r
	1167	//-----------------------------------------------------------------------------\r
	1168	// Work with "magic Chinese" card (email him: ouyangweidaxian@live.cn)\r
	1169	// \r
	1170	// PARAMS - workFlags\r
	1171	// bit 0 - need get UID\r
	1172	// bit 1 - need wupC\r
	1173	// bit 2 - need HALT after sequence\r
	1174	// bit 3 - need turn on FPGA before sequence\r
	1175	// bit 4 - need turn off FPGA\r
	1176	// bit 5 - need to set datain instead of issuing USB reply (called via ARM for StandAloneMode14a)\r
	1177	// bit 6 - wipe tag.\r
	1178	//-----------------------------------------------------------------------------\r
	1179	// magic uid card generation 1 commands\r
	1180	uint8_t wupC1[] = { MIFARE_MAGICWUPC1 }; \r
	1181	uint8_t wupC2[] = { MIFARE_MAGICWUPC2 }; \r
	1182	uint8_t wipeC[] = { MIFARE_MAGICWIPEC }; \r
	1183	\r
	1184	void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint8_t *datain){\r
	1185	\r
	1186	// params\r
	1187	uint8_t workFlags = arg0;\r
	1188	uint8_t blockNo = arg1;\r
	1189	\r
	1190	// variables\r
	1191	bool isOK = false; //assume we will get an error\r
	1192	uint8_t errormsg = 0x00;\r
	1193	uint8_t uid[10] = {0x00};\r
	1194	uint8_t data[18] = {0x00};\r
	1195	uint32_t cuid = 0;\r
	1196	\r
	1197	uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE] = {0x00};\r
	1198	uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE] = {0x00};\r
	1199	\r
	1200	if (workFlags & MAGIC_INIT) {\r
	1201	LED_A_ON();\r
	1202	LED_B_OFF();\r
	1203	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
	1204	clear_trace();\r
	1205	set_tracing(TRUE);\r
	1206	}\r
	1207	\r
	1208	//loop doesn't loop just breaks out if error\r
	1209	while (true) {\r
	1210	// read UID and return to client with write\r
	1211	if (workFlags & MAGIC_UID) {\r
	1212	if(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) {\r
	1213	if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card");\r
	1214	errormsg = MAGIC_UID;\r
	1215	}\r
	1216	mifare_classic_halt_ex(NULL);\r
	1217	break;\r
	1218	}\r
	1219	\r
	1220	// wipe tag, fill it with zeros\r
	1221	if (workFlags & MAGIC_WIPE){\r
	1222	ReaderTransmitBitsPar(wupC1, 7, NULL, NULL);\r
	1223	if(!ReaderReceive(receivedAnswer, receivedAnswerPar) \|\| (receivedAnswer[0] != 0x0a)) {\r
	1224	if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("wupC1 error");\r
	1225	errormsg = MAGIC_WIPE;\r
	1226	break;\r
	1227	}\r
	1228	\r
	1229	ReaderTransmit(wipeC, sizeof(wipeC), NULL);\r
	1230	if(!ReaderReceive(receivedAnswer, receivedAnswerPar) \|\| (receivedAnswer[0] != 0x0a)) {\r
	1231	if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("wipeC error");\r
	1232	errormsg = MAGIC_WIPE;\r
	1233	break;\r
	1234	}\r
	1235	\r
	1236	mifare_classic_halt_ex(NULL);\r
	1237	} \r
	1238	\r
	1239	// write block\r
	1240	if (workFlags & MAGIC_WUPC) {\r
	1241	ReaderTransmitBitsPar(wupC1, 7, NULL, NULL);\r
	1242	if(!ReaderReceive(receivedAnswer, receivedAnswerPar) \|\| (receivedAnswer[0] != 0x0a)) {\r
	1243	if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("wupC1 error");\r
	1244	errormsg = MAGIC_WUPC;\r
	1245	break;\r
	1246	}\r
	1247	\r
	1248	ReaderTransmit(wupC2, sizeof(wupC2), NULL);\r
	1249	if(!ReaderReceive(receivedAnswer, receivedAnswerPar) \|\| (receivedAnswer[0] != 0x0a)) {\r
	1250	if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("wupC2 error");\r
	1251	errormsg = MAGIC_WUPC;\r
	1252	break;\r
	1253	}\r
	1254	}\r
	1255	\r
	1256	if ((mifare_sendcmd_short(NULL, 0, ISO14443A_CMD_WRITEBLOCK, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 1) \|\| (receivedAnswer[0] != 0x0a)) {\r
	1257	if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("write block send command error");\r
	1258	errormsg = 4;\r
	1259	break;\r
	1260	}\r
	1261	\r
	1262	memcpy(data, datain, 16);\r
	1263	AppendCrc14443a(data, 16);\r
	1264	\r
	1265	ReaderTransmit(data, sizeof(data), NULL);\r
	1266	if ((ReaderReceive(receivedAnswer, receivedAnswerPar) != 1) \|\| (receivedAnswer[0] != 0x0a)) {\r
	1267	if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("write block send data error");\r
	1268	errormsg = 0;\r
	1269	break;\r
	1270	} \r
	1271	\r
	1272	if (workFlags & MAGIC_OFF) \r
	1273	mifare_classic_halt_ex(NULL);\r
	1274	\r
	1275	isOK = true;\r
	1276	break;\r
	1277	\r
	1278	} // end while \r
	1279	\r
	1280	if (isOK )\r
	1281	cmd_send(CMD_ACK,1,0,0,uid,sizeof(uid));\r
	1282	else\r
	1283	OnErrorMagic(errormsg);\r
	1284	\r
	1285	if (workFlags & MAGIC_OFF)\r
	1286	OnSuccessMagic();\r
	1287	}\r
	1288	\r
	1289	void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint8_t *datain){\r
	1290	\r
	1291	uint8_t workFlags = arg0;\r
	1292	uint8_t blockNo = arg1;\r
	1293	uint8_t errormsg = 0x00;\r
	1294	bool isOK = false; //assume we will get an error\r
	1295	\r
	1296	// variables\r
	1297	uint8_t data[MAX_MIFARE_FRAME_SIZE];\r
	1298	uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE] = {0x00};\r
	1299	uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE] = {0x00};\r
	1300	\r
	1301	memset(data, 0x00, sizeof(data));\r
	1302	\r
	1303	if (workFlags & MAGIC_INIT) {\r
	1304	LED_A_ON();\r
	1305	LED_B_OFF();\r
	1306	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); \r
	1307	clear_trace();\r
	1308	set_tracing(TRUE);\r
	1309	}\r
	1310	\r
	1311	//loop doesn't loop just breaks out if error or done\r
	1312	while (true) {\r
	1313	if (workFlags & MAGIC_WUPC) {\r
	1314	ReaderTransmitBitsPar(wupC1, 7, NULL, NULL);\r
	1315	if(!ReaderReceive(receivedAnswer, receivedAnswerPar) \|\| (receivedAnswer[0] != 0x0a)) {\r
	1316	if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("wupC1 error");\r
	1317	errormsg = MAGIC_WUPC;\r
	1318	break;\r
	1319	}\r
	1320	\r
	1321	ReaderTransmit(wupC2, sizeof(wupC2), NULL);\r
	1322	if(!ReaderReceive(receivedAnswer, receivedAnswerPar) \|\| (receivedAnswer[0] != 0x0a)) {\r
	1323	if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("wupC2 error");\r
	1324	errormsg = MAGIC_WUPC;\r
	1325	break;\r
	1326	}\r
	1327	}\r
	1328	\r
	1329	// read block \r
	1330	if ((mifare_sendcmd_short(NULL, 0, ISO14443A_CMD_READBLOCK, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 18)) {\r
	1331	if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("read block send command error");\r
	1332	errormsg = 0;\r
	1333	break;\r
	1334	}\r
	1335	\r
	1336	memcpy(data, receivedAnswer, sizeof(data));\r
	1337	\r
	1338	// send HALT\r
	1339	if (workFlags & MAGIC_HALT)\r
	1340	mifare_classic_halt_ex(NULL);\r
	1341	\r
	1342	isOK = true;\r
	1343	break;\r
	1344	}\r
	1345	// if MAGIC_DATAIN, the data stays on device side.\r
	1346	if (workFlags & MAGIC_DATAIN) {\r
	1347	if (isOK)\r
	1348	memcpy(datain, data, sizeof(data));\r
	1349	} else {\r
	1350	if (isOK) \r
	1351	cmd_send(CMD_ACK,1,0,0,data,sizeof(data)); \r
	1352	else \r
	1353	OnErrorMagic(errormsg); \r
	1354	}\r
	1355	\r
	1356	if (workFlags & MAGIC_OFF)\r
	1357	OnSuccessMagic();\r
	1358	}\r
	1359	\r
	1360	void MifareCIdent(){\r
	1361	\r
	1362	// variables\r
	1363	bool isOK = true; \r
	1364	uint8_t receivedAnswer[1] = {0x00};\r
	1365	uint8_t receivedAnswerPar[1] = {0x00};\r
	1366	\r
	1367	ReaderTransmitBitsPar(wupC1, 7, NULL, NULL);\r
	1368	if(!ReaderReceive(receivedAnswer, receivedAnswerPar) \|\| (receivedAnswer[0] != 0x0a)) {\r
	1369	isOK = false;\r
	1370	}\r
	1371	\r
	1372	ReaderTransmit(wupC2, sizeof(wupC2), NULL);\r
	1373	if(!ReaderReceive(receivedAnswer, receivedAnswerPar) \|\| (receivedAnswer[0] != 0x0a)) {\r
	1374	isOK = false;\r
	1375	}\r
	1376	\r
	1377	// removed the if, since some magic tags misbehavies and send an answer to it.\r
	1378	mifare_classic_halt(NULL, 0);\r
	1379	cmd_send(CMD_ACK,isOK,0,0,0,0);\r
	1380	}\r
	1381	\r
	1382	void OnSuccessMagic(){\r
	1383	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
	1384	LEDsoff();\r
	1385	set_tracing(FALSE); \r
	1386	}\r
	1387	void OnErrorMagic(uint8_t reason){\r
	1388	// ACK, ISOK, reason,0,0,0\r
	1389	cmd_send(CMD_ACK,0,reason,0,0,0);\r
	1390	OnSuccessMagic();\r
	1391	}\r
	1392	//\r
	1393	// DESFIRE\r
	1394	//\r
	1395	void Mifare_DES_Auth1(uint8_t arg0, uint8_t *datain){\r
	1396	byte_t dataout[12] = {0x00};\r
	1397	uint8_t uid[10] = {0x00};\r
	1398	uint32_t cuid = 0;\r
	1399	\r
	1400	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
	1401	clear_trace();\r
	1402	set_tracing(true);\r
	1403	\r
	1404	int len = iso14443a_select_card(uid, NULL, &cuid, true, 0);\r
	1405	if(!len) {\r
	1406	if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card");\r
	1407	OnError(1);\r
	1408	return;\r
	1409	};\r
	1410	\r
	1411	if(mifare_desfire_des_auth1(cuid, dataout)){\r
	1412	if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication part1: Fail.");\r
	1413	OnError(4);\r
	1414	return;\r
	1415	}\r
	1416	\r
	1417	if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 1 FINISHED");\r
	1418	cmd_send(CMD_ACK, 1, cuid, 0, dataout, sizeof(dataout));\r
	1419	}\r
	1420	\r
	1421	void Mifare_DES_Auth2(uint32_t arg0, uint8_t *datain){\r
	1422	uint32_t cuid = arg0;\r
	1423	uint8_t key[16] = {0x00};\r
	1424	byte_t dataout[12] = {0x00};\r
	1425	byte_t isOK = 0;\r
	1426	\r
	1427	memcpy(key, datain, 16);\r
	1428	\r
	1429	isOK = mifare_desfire_des_auth2(cuid, key, dataout);\r
	1430	\r
	1431	if( isOK) {\r
	1432	if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Authentication part2: Failed"); \r
	1433	OnError(4);\r
	1434	return;\r
	1435	}\r
	1436	\r
	1437	if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 2 FINISHED");\r
	1438	\r
	1439	cmd_send(CMD_ACK, isOK, 0, 0, dataout, sizeof(dataout));\r
	1440	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
	1441	LEDsoff();\r
	1442	set_tracing(FALSE);\r
	1443	}