X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/8258f409697ab41a6858ef9bdcdf406989223bbb..5a6a7affc50e3e85c02c2da63b2f85803790f36f:/armsrc/mifarecmd.c diff --git a/armsrc/mifarecmd.c b/armsrc/mifarecmd.c index 1f8f4ee8..a3d6609d 100644 --- a/armsrc/mifarecmd.c +++ b/armsrc/mifarecmd.c @@ -16,7 +16,6 @@ #include "mifarecmd.h" #include "apps.h" #include "util.h" - #include "crc.h" // the block number for the ISO14443-4 PCB @@ -24,7 +23,6 @@ uint8_t pcb_blocknum = 0; // Deselect card by sending a s-block. the crc is precalced for speed static uint8_t deselect_cmd[] = {0xc2,0xe0,0xb4}; - //----------------------------------------------------------------------------- // Select, Authenticate, Read a MIFARE tag. // read block @@ -46,10 +44,10 @@ void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain) struct Crypto1State *pcs; pcs = &mpcs; - // clear trace - clear_trace(); iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + clear_trace(); + LED_A_ON(); LED_B_OFF(); LED_C_OFF(); @@ -97,26 +95,28 @@ void MifareUC_Auth(uint8_t arg0, uint8_t *keybytes){ bool turnOffField = (arg0 == 1); LED_A_ON(); LED_B_OFF(); LED_C_OFF(); - clear_trace(); + iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + clear_trace(); + if(!iso14443a_select_card(NULL, NULL, NULL)) { if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card"); OnError(0); return; }; - if(mifare_ultra_auth(keybytes) == 1){ + if(!mifare_ultra_auth(keybytes)){ if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication failed"); OnError(1); return; } - cmd_send(CMD_ACK,1,0,0,0,0); if (turnOffField) { FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); LEDsoff(); } + cmd_send(CMD_ACK,1,0,0,0,0); } // Arg0 = BlockNo, @@ -131,9 +131,10 @@ void MifareUReadBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain) LEDsoff(); LED_A_ON(); - clear_trace(); iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + clear_trace(); + int len = iso14443a_select_card(NULL, NULL, NULL); if(!len) { if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%02X)",len); @@ -146,7 +147,7 @@ void MifareUReadBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain) uint8_t key[16] = {0x00}; memcpy(key, datain, sizeof(key) ); - if ( mifare_ultra_auth(key) == 1 ) { + if ( !mifare_ultra_auth(key) ) { OnError(1); return; } @@ -157,7 +158,7 @@ void MifareUReadBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain) uint8_t pwd[4] = {0x00}; memcpy(pwd, datain, 4); uint8_t pack[4] = {0,0,0,0}; - if (mifare_ul_ev1_auth(pwd, pack) == 1) { + if (!mifare_ul_ev1_auth(pwd, pack)) { OnError(1); return; } @@ -201,11 +202,10 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain) struct Crypto1State *pcs; pcs = &mpcs; - // clear trace - clear_trace(); - iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + clear_trace(); + LED_A_ON(); LED_B_OFF(); LED_C_OFF(); @@ -248,20 +248,32 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain) LEDsoff(); } +// arg0 = blockNo (start) +// arg1 = Pages (number of blocks) +// arg2 = useKey +// datain = KEY bytes void MifareUReadCard(uint8_t arg0, uint16_t arg1, uint8_t arg2, uint8_t *datain) { + LEDsoff(); + LED_A_ON(); + iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + + // free eventually allocated BigBuf memory + BigBuf_free(); + clear_trace(); + // params uint8_t blockNo = arg0; uint16_t blocks = arg1; bool useKey = (arg2 == 1); //UL_C bool usePwd = (arg2 == 2); //UL_EV1/NTAG - int countblocks = 0; - uint8_t dataout[176] = {0x00}; - - LEDsoff(); - LED_A_ON(); - clear_trace(); - iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + uint32_t countblocks = 0; + uint8_t *dataout = BigBuf_malloc(CARD_MEMORY_SIZE); + if (dataout == NULL){ + Dbprintf("out of memory"); + OnError(1); + return; + } int len = iso14443a_select_card(NULL, NULL, NULL); if (!len) { @@ -275,7 +287,7 @@ void MifareUReadCard(uint8_t arg0, uint16_t arg1, uint8_t arg2, uint8_t *datain) uint8_t key[16] = {0x00}; memcpy(key, datain, sizeof(key) ); - if ( mifare_ultra_auth(key) == 1 ) { + if ( !mifare_ultra_auth(key) ) { OnError(1); return; } @@ -287,19 +299,30 @@ void MifareUReadCard(uint8_t arg0, uint16_t arg1, uint8_t arg2, uint8_t *datain) memcpy(pwd, datain, sizeof(pwd)); uint8_t pack[4] = {0,0,0,0}; - if (mifare_ul_ev1_auth(pwd, pack) == 1){ + if (!mifare_ul_ev1_auth(pwd, pack)){ OnError(1); return; } } for (int i = 0; i < blocks; i++){ - len = mifare_ultra_readblock(blockNo * 4 + i, dataout + 4 * i); + if ((i*4) + 4 >= CARD_MEMORY_SIZE) { + Dbprintf("Data exceeds buffer!!"); + break; + } + + len = mifare_ultra_readblock(blockNo + i, dataout + 4 * i); if (len) { if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block %d error",i); - OnError(2); - return; + // if no blocks read - error out + if (i==0){ + OnError(2); + return; + } else { + //stop at last successful read block and return what we got + break; + } } else { countblocks++; } @@ -314,11 +337,12 @@ void MifareUReadCard(uint8_t arg0, uint16_t arg1, uint8_t arg2, uint8_t *datain) if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Blocks read %d", countblocks); - len = blocks * 4; + countblocks *= 4; - cmd_send(CMD_ACK, 1, len, 0, dataout, len); + cmd_send(CMD_ACK, 1, countblocks, BigBuf_max_traceLen(), 0, 0); FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); LEDsoff(); + BigBuf_free(); } //----------------------------------------------------------------------------- @@ -344,11 +368,10 @@ void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain) struct Crypto1State *pcs; pcs = &mpcs; - // clear trace - clear_trace(); - iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + clear_trace(); + LED_A_ON(); LED_B_OFF(); LED_C_OFF(); @@ -393,7 +416,8 @@ void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain) LEDsoff(); } -void MifareUWriteBlock(uint8_t arg0, uint8_t *datain) +/* // Command not needed but left for future testing +void MifareUWriteBlockCompat(uint8_t arg0, uint8_t *datain) { uint8_t blockNo = arg0; byte_t blockdata[16] = {0x00}; @@ -413,7 +437,7 @@ void MifareUWriteBlock(uint8_t arg0, uint8_t *datain) return; }; - if(mifare_ultra_writeblock(blockNo, blockdata)) { + if(mifare_ultra_writeblock_compat(blockNo, blockdata)) { if (MF_DBGLEVEL >= 1) Dbprintf("Write block error"); OnError(0); return; }; @@ -430,26 +454,58 @@ void MifareUWriteBlock(uint8_t arg0, uint8_t *datain) FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); LEDsoff(); } - -void MifareUWriteBlock_Special(uint8_t arg0, uint8_t *datain) +*/ + +// Arg0 : Block to write to. +// Arg1 : 0 = use no authentication. +// 1 = use 0x1A authentication. +// 2 = use 0x1B authentication. +// datain : 4 first bytes is data to be written. +// : 4/16 next bytes is authentication key. +void MifareUWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain) { uint8_t blockNo = arg0; + bool useKey = (arg1 == 1); //UL_C + bool usePwd = (arg1 == 2); //UL_EV1/NTAG byte_t blockdata[4] = {0x00}; memcpy(blockdata, datain,4); LEDsoff(); LED_A_ON(); - clear_trace(); iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + clear_trace(); + if(!iso14443a_select_card(NULL, NULL, NULL)) { if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card"); OnError(0); return; }; - if(mifare_ultra_special_writeblock(blockNo, blockdata)) { + // UL-C authentication + if ( useKey ) { + uint8_t key[16] = {0x00}; + memcpy(key, datain+4, sizeof(key) ); + + if ( !mifare_ultra_auth(key) ) { + OnError(1); + return; + } + } + + // UL-EV1 / NTAG authentication + if (usePwd) { + uint8_t pwd[4] = {0x00}; + memcpy(pwd, datain+4, 4); + uint8_t pack[4] = {0,0,0,0}; + if (!mifare_ul_ev1_auth(pwd, pack)) { + OnError(1); + return; + } + } + + if(mifare_ultra_writeblock(blockNo, blockdata)) { if (MF_DBGLEVEL >= 1) Dbprintf("Write block error"); OnError(0); return; @@ -476,9 +532,10 @@ void MifareUSetPwd(uint8_t arg0, uint8_t *datain){ memcpy(pwd, datain, 16); LED_A_ON(); LED_B_OFF(); LED_C_OFF(); - clear_trace(); iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + clear_trace(); + if(!iso14443a_select_card(NULL, NULL, NULL)) { if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card"); OnError(0); @@ -489,7 +546,7 @@ void MifareUSetPwd(uint8_t arg0, uint8_t *datain){ blockdata[1] = pwd[6]; blockdata[2] = pwd[5]; blockdata[3] = pwd[4]; - if(mifare_ultra_special_writeblock( 44, blockdata)) { + if(mifare_ultra_writeblock( 44, blockdata)) { if (MF_DBGLEVEL >= 1) Dbprintf("Write block error"); OnError(44); return; @@ -499,7 +556,7 @@ void MifareUSetPwd(uint8_t arg0, uint8_t *datain){ blockdata[1] = pwd[2]; blockdata[2] = pwd[1]; blockdata[3] = pwd[0]; - if(mifare_ultra_special_writeblock( 45, blockdata)) { + if(mifare_ultra_writeblock( 45, blockdata)) { if (MF_DBGLEVEL >= 1) Dbprintf("Write block error"); OnError(45); return; @@ -509,7 +566,7 @@ void MifareUSetPwd(uint8_t arg0, uint8_t *datain){ blockdata[1] = pwd[14]; blockdata[2] = pwd[13]; blockdata[3] = pwd[12]; - if(mifare_ultra_special_writeblock( 46, blockdata)) { + if(mifare_ultra_writeblock( 46, blockdata)) { if (MF_DBGLEVEL >= 1) Dbprintf("Write block error"); OnError(46); return; @@ -519,7 +576,7 @@ void MifareUSetPwd(uint8_t arg0, uint8_t *datain){ blockdata[1] = pwd[10]; blockdata[2] = pwd[9]; blockdata[3] = pwd[8]; - if(mifare_ultra_special_writeblock( 47, blockdata)) { + if(mifare_ultra_writeblock( 47, blockdata)) { if (MF_DBGLEVEL >= 1) Dbprintf("Write block error"); OnError(47); return; @@ -578,19 +635,20 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat uint32_t auth1_time, auth2_time; static uint16_t delta_time; - // free eventually allocated BigBuf memory - BigBuf_free(); - // clear trace - clear_trace(); - set_tracing(false); - - iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); - LED_A_ON(); LED_C_OFF(); + iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + // free eventually allocated BigBuf memory + BigBuf_free(); + if (calibrate) clear_trace(); + set_tracing(true); + // statistics on nonce distance + int16_t isOK = 0; + #define NESTED_MAX_TRIES 12 + uint16_t unsuccessfull_tries = 0; if (calibrate) { // for first call only. Otherwise reuse previous calibration LED_B_ON(); WDT_HIT(); @@ -601,6 +659,12 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat for (rtr = 0; rtr < 17; rtr++) { + // Test if the action was cancelled + if(BUTTON_PRESS()) { + isOK = -2; + break; + } + // prepare next select. No need to power down the card. if(mifare_classic_halt(pcs, cuid)) { if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Halt error"); @@ -648,14 +712,17 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat delta_time = auth2_time - auth1_time + 32; // allow some slack for proper timing } if (MF_DBGLEVEL >= 3) Dbprintf("Nested: calibrating... ntdist=%d", i); + } else { + unsuccessfull_tries++; + if (unsuccessfull_tries > NESTED_MAX_TRIES) { // card isn't vulnerable to nested attack (random numbers are not predictable) + isOK = -3; + } } } - - if (rtr <= 1) return; davg = (davg + (rtr - 1)/2) / (rtr - 1); - if (MF_DBGLEVEL >= 3) Dbprintf("min=%d max=%d avg=%d, delta_time=%d", dmin, dmax, davg, delta_time); + 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); dmin = davg - 2; dmax = davg + 2; @@ -663,12 +730,12 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat LED_B_OFF(); } -// ------------------------------------------------------------------------------------------------- + // ------------------------------------------------------------------------------------------------- LED_C_ON(); // get crypted nonces for target sector - for(i=0; i < 2; i++) { // look for exactly two different nonces + for(i=0; i < 2 && !isOK; i++) { // look for exactly two different nonces target_nt[i] = 0; while(target_nt[i] == 0) { // continue until we have an unambiguous nonce @@ -692,7 +759,7 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat // nested authentication auth2_time = auth1_time + delta_time; - len = mifare_sendcmd_shortex(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, par, &auth2_time); + len = mifare_sendcmd_short(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, par, &auth2_time); if (len != 4) { if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Auth2 error len=%d", len); continue; @@ -746,25 +813,25 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat memcpy(buf+16, &target_ks[1], 4); LED_B_ON(); - cmd_send(CMD_ACK, 0, 2, targetBlockNo + (targetKeyType * 0x100), buf, sizeof(buf)); + cmd_send(CMD_ACK, isOK, 0, targetBlockNo + (targetKeyType * 0x100), buf, sizeof(buf)); LED_B_OFF(); if (MF_DBGLEVEL >= 3) DbpString("NESTED FINISHED"); FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); LEDsoff(); - set_tracing(TRUE); } //----------------------------------------------------------------------------- // MIFARE check keys. key count up to 85. // //----------------------------------------------------------------------------- -void MifareChkKeys(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain) +void MifareChkKeys(uint16_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain) { // params - uint8_t blockNo = arg0; - uint8_t keyType = arg1; + uint8_t blockNo = arg0 & 0xff; + uint8_t keyType = (arg0 >> 8) & 0xff; + bool clearTrace = arg1; uint8_t keyCount = arg2; uint64_t ui64Key = 0; @@ -781,15 +848,13 @@ void MifareChkKeys(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain) int OLD_MF_DBGLEVEL = MF_DBGLEVEL; MF_DBGLEVEL = MF_DBG_NONE; - // clear trace - clear_trace(); - set_tracing(TRUE); - - iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); - LED_A_ON(); LED_B_OFF(); LED_C_OFF(); + iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + + if (clearTrace) clear_trace(); + set_tracing(TRUE); for (i = 0; i < keyCount; i++) { if(mifare_classic_halt(pcs, cuid)) { @@ -836,16 +901,23 @@ void MifareSetDbgLvl(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai //----------------------------------------------------------------------------- // Work with emulator memory // +// Note: we call FpgaDownloadAndGo(FPGA_BITSTREAM_HF) here although FPGA is not +// involved in dealing with emulator memory. But if it is called later, it might +// destroy the Emulator Memory. //----------------------------------------------------------------------------- + void MifareEMemClr(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){ + FpgaDownloadAndGo(FPGA_BITSTREAM_HF); emlClearMem(); } void MifareEMemSet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){ + FpgaDownloadAndGo(FPGA_BITSTREAM_HF); emlSetMem(datain, arg0, arg1); // data, block num, blocks count } void MifareEMemGet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){ + FpgaDownloadAndGo(FPGA_BITSTREAM_HF); byte_t buf[USB_CMD_DATA_SIZE]; emlGetMem(buf, arg0, arg1); // data, block num, blocks count (max 4) @@ -872,15 +944,13 @@ void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai byte_t dataoutbuf2[16]; uint8_t uid[10]; - // clear trace - clear_trace(); - set_tracing(false); - - iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); - LED_A_ON(); LED_B_OFF(); LED_C_OFF(); + iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + + clear_trace(); + set_tracing(false); bool isOK = true; @@ -974,10 +1044,10 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai LED_A_ON(); LED_B_OFF(); LED_C_OFF(); + iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); clear_trace(); set_tracing(TRUE); - iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); } while (true) { @@ -1073,6 +1143,7 @@ void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai // bit 2 - need HALT after sequence // bit 3 - need init FPGA and field before sequence // bit 4 - need reset FPGA and LED + // bit 5 - need to set datain instead of issuing USB reply (called via ARM for StandAloneMode14a) uint8_t workFlags = arg0; uint8_t blockNo = arg2; @@ -1092,10 +1163,10 @@ void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai LED_A_ON(); LED_B_OFF(); LED_C_OFF(); - + iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + clear_trace(); set_tracing(TRUE); - iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); } while (true) { @@ -1132,7 +1203,12 @@ void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai } LED_B_ON(); - cmd_send(CMD_ACK,isOK,0,0,data,18); + if (workFlags & 0x20) { + if (isOK) + memcpy(datain, data, 18); + } + else + cmd_send(CMD_ACK,isOK,0,0,data,18); LED_B_OFF(); if ((workFlags & 0x10) || (!isOK)) { @@ -1170,7 +1246,7 @@ void MifareCIdent(){ cmd_send(CMD_ACK,isOK,0,0,0,0); } - // +// // DESFIRE // @@ -1180,8 +1256,8 @@ void Mifare_DES_Auth1(uint8_t arg0, uint8_t *datain){ uint8_t uid[10] = {0x00}; uint32_t cuid; - clear_trace(); iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + clear_trace(); int len = iso14443a_select_card(uid, NULL, &cuid); if(!len) { @@ -1212,14 +1288,12 @@ void Mifare_DES_Auth2(uint32_t arg0, uint8_t *datain){ isOK = mifare_desfire_des_auth2(cuid, key, dataout); if( isOK) { - if (MF_DBGLEVEL >= MF_DBG_EXTENDED) - Dbprintf("Authentication part2: Failed"); - //OnError(4); + if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Authentication part2: Failed"); + OnError(4); return; } - if (MF_DBGLEVEL >= MF_DBG_EXTENDED) - DbpString("AUTH 2 FINISHED"); + if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 2 FINISHED"); cmd_send(CMD_ACK, isOK, 0, 0, dataout, sizeof(dataout)); FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);