X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/dc3e2acf33a1f62b530d3a199073c1b9bfebf9b5..994f21fe017fd0f2373399ff7cfb9843bfd303df:/client/cmdhfmfp.c diff --git a/client/cmdhfmfp.c b/client/cmdhfmfp.c index 34abbed0..1e5bbe1a 100644 --- a/client/cmdhfmfp.c +++ b/client/cmdhfmfp.c @@ -1,5 +1,6 @@ //----------------------------------------------------------------------------- // Copyright (C) 2018 Merlok +// Copyright (C) 2018 drHatson // // This code is licensed to you under the terms of the GNU GPL, version 2 or, // at your option, any later version. See the LICENSE.txt file for the text of @@ -21,9 +22,109 @@ #include "ui.h" #include "cmdhf14a.h" #include "mifare.h" +#include "mifare4.h" +#include "cliparser/cliparser.h" +#include "crypto/libpcrypto.h" + +static const uint8_t DefaultKey[16] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; + +typedef struct { + uint8_t Code; + const char *Description; +} PlusErrorsElm; + +static const PlusErrorsElm PlusErrors[] = { + {0xFF, ""}, + {0x00, "Transfer cannot be granted within the current authentication."}, + {0x06, "Access Conditions not fulfilled. Block does not exist, block is not a value block."}, + {0x07, "Too many read or write commands in the session or in the transaction."}, + {0x08, "Invalid MAC in command or response"}, + {0x09, "Block Number is not valid"}, + {0x0a, "Invalid block number, not existing block number"}, + {0x0b, "The current command code not available at the current card state."}, + {0x0c, "Length error"}, + {0x0f, "General Manipulation Error. Failure in the operation of the PICC (cannot write to the data block), etc."}, + {0x90, "OK"}, +}; +int PlusErrorsLen = sizeof(PlusErrors) / sizeof(PlusErrorsElm); + +const char * GetErrorDescription(uint8_t errorCode) { + for(int i = 0; i < PlusErrorsLen; i++) + if (errorCode == PlusErrors[i].Code) + return PlusErrors[i].Description; + + return PlusErrors[0].Description; +} static int CmdHelp(const char *Cmd); +static bool VerboseMode = false; +void SetVerboseMode(bool verbose) { + VerboseMode = verbose; +} + +int intExchangeRAW14aPlus(uint8_t *datain, int datainlen, bool activateField, bool leaveSignalON, uint8_t *dataout, int maxdataoutlen, int *dataoutlen) { + if(VerboseMode) + PrintAndLog(">>> %s", sprint_hex(datain, datainlen)); + + int res = ExchangeRAW14a(datain, datainlen, activateField, leaveSignalON, dataout, maxdataoutlen, dataoutlen); + + if(VerboseMode) + PrintAndLog("<<< %s", sprint_hex(dataout, *dataoutlen)); + + return res; +} + +int MFPWritePerso(uint8_t *keyNum, uint8_t *key, bool activateField, bool leaveSignalON, uint8_t *dataout, int maxdataoutlen, int *dataoutlen) { + uint8_t rcmd[3 + 16] = {0xa8, keyNum[1], keyNum[0], 0x00}; + memmove(&rcmd[3], key, 16); + + return intExchangeRAW14aPlus(rcmd, sizeof(rcmd), activateField, leaveSignalON, dataout, maxdataoutlen, dataoutlen); +} + +int MFPCommitPerso(bool activateField, bool leaveSignalON, uint8_t *dataout, int maxdataoutlen, int *dataoutlen) { + uint8_t rcmd[1] = {0xaa}; + + return intExchangeRAW14aPlus(rcmd, sizeof(rcmd), activateField, leaveSignalON, dataout, maxdataoutlen, dataoutlen); +} + +int MFPReadBlock(mf4Session *session, bool plain, uint8_t blockNum, uint8_t blockCount, bool activateField, bool leaveSignalON, uint8_t *dataout, int maxdataoutlen, int *dataoutlen, uint8_t *mac) { + uint8_t rcmd[4 + 8] = {(plain?(0x37):(0x33)), blockNum, 0x00, blockCount}; + if (!plain && session) + CalculateMAC(session, mtypReadCmd, blockNum, blockCount, rcmd, 4, &rcmd[4], VerboseMode); + + int res = intExchangeRAW14aPlus(rcmd, plain?4:sizeof(rcmd), activateField, leaveSignalON, dataout, maxdataoutlen, dataoutlen); + if(res) + return res; + + if (session) + session->R_Ctr++; + + if(session && mac && *dataoutlen > 11) + CalculateMAC(session, mtypReadResp, blockNum, blockCount, dataout, *dataoutlen - 8 - 2, mac, VerboseMode); + + return 0; +} + +int MFPWriteBlock(mf4Session *session, uint8_t blockNum, uint8_t *data, bool activateField, bool leaveSignalON, uint8_t *dataout, int maxdataoutlen, int *dataoutlen, uint8_t *mac) { + uint8_t rcmd[1 + 2 + 16 + 8] = {0xA3, blockNum, 0x00}; + memmove(&rcmd[3], data, 16); + if (session) + CalculateMAC(session, mtypWriteCmd, blockNum, 1, rcmd, 19, &rcmd[19], VerboseMode); + + int res = intExchangeRAW14aPlus(rcmd, sizeof(rcmd), activateField, leaveSignalON, dataout, maxdataoutlen, dataoutlen); + if(res) + return res; + + if (session) + session->W_Ctr++; + + if(session && mac && *dataoutlen > 3) + CalculateMAC(session, mtypWriteResp, blockNum, 1, dataout, *dataoutlen, mac, VerboseMode); + + return 0; +} + int CmdHFMFPInfo(const char *cmd) { if (cmd && strlen(cmd) > 0) @@ -103,10 +204,546 @@ int CmdHFMFPInfo(const char *cmd) { return 0; } +int CmdHFMFPWritePerso(const char *cmd) { + uint8_t keyNum[64] = {0}; + int keyNumLen = 0; + uint8_t key[64] = {0}; + int keyLen = 0; + + CLIParserInit("hf mfp wrp", + "Executes Write Perso command. Can be used in SL0 mode only.", + "Usage:\n\thf mfp wrp 4000 000102030405060708090a0b0c0d0e0f -> write key (00..0f) to key number 4000 \n" + "\thf mfp wrp 4000 -> write default key(0xff..0xff) to key number 4000"); + + void* argtable[] = { + arg_param_begin, + arg_lit0("vV", "verbose", "show internal data."), + arg_str1(NULL, NULL, "", NULL), + arg_strx0(NULL, NULL, "", NULL), + arg_param_end + }; + CLIExecWithReturn(cmd, argtable, true); + + bool verbose = arg_get_lit(1); + CLIGetHexWithReturn(2, keyNum, &keyNumLen); + CLIGetHexWithReturn(3, key, &keyLen); + CLIParserFree(); + + SetVerboseMode(verbose); + + if (!keyLen) { + memmove(key, DefaultKey, 16); + keyLen = 16; + } + + if (keyNumLen != 2) { + PrintAndLog("Key number length must be 2 bytes instead of: %d", keyNumLen); + return 1; + } + if (keyLen != 16) { + PrintAndLog("Key length must be 16 bytes instead of: %d", keyLen); + return 1; + } + + uint8_t data[250] = {0}; + int datalen = 0; + + int res = MFPWritePerso(keyNum, key, true, false, data, sizeof(data), &datalen); + if (res) { + PrintAndLog("Exchange error: %d", res); + return res; + } + + if (datalen != 3) { + PrintAndLog("Command must return 3 bytes instead of: %d", datalen); + return 1; + } + + if (data[0] != 0x90) { + PrintAndLog("Command error: %02x %s", data[0], GetErrorDescription(data[0])); + return 1; + } + PrintAndLog("Write OK."); + + return 0; +} + +uint16_t CardAddresses[] = {0x9000, 0x9001, 0x9002, 0x9003, 0x9004, 0xA000, 0xA001, 0xA080, 0xA081, 0xC000, 0xC001}; + +int CmdHFMFPInitPerso(const char *cmd) { + int res; + uint8_t key[256] = {0}; + int keyLen = 0; + uint8_t keyNum[2] = {0}; + uint8_t data[250] = {0}; + int datalen = 0; + + CLIParserInit("hf mfp initp", + "Executes Write Perso command for all card's keys. Can be used in SL0 mode only.", + "Usage:\n\thf mfp initp 000102030405060708090a0b0c0d0e0f -> fill all the keys with key (00..0f)\n" + "\thf mfp initp -vv -> fill all the keys with default key(0xff..0xff) and show all the data exchange"); + + void* argtable[] = { + arg_param_begin, + arg_litn("vV", "verbose", 0, 2, "show internal data."), + arg_strx0(NULL, NULL, "", NULL), + arg_param_end + }; + CLIExecWithReturn(cmd, argtable, true); + + bool verbose = arg_get_lit(1); + bool verbose2 = arg_get_lit(1) > 1; + CLIGetHexWithReturn(2, key, &keyLen); + CLIParserFree(); + + if (keyLen && keyLen != 16) { + PrintAndLog("Key length must be 16 bytes instead of: %d", keyLen); + return 1; + } + + if (!keyLen) + memmove(key, DefaultKey, 16); + + SetVerboseMode(verbose2); + for (uint16_t sn = 0x4000; sn < 0x4050; sn++) { + keyNum[0] = sn >> 8; + keyNum[1] = sn & 0xff; + res = MFPWritePerso(keyNum, key, (sn == 0x4000), true, data, sizeof(data), &datalen); + if (!res && (datalen == 3) && data[0] == 0x09) { + PrintAndLog("2k card detected."); + break; + } + if (res || (datalen != 3) || data[0] != 0x90) { + PrintAndLog("Write error on address %04x", sn); + break; + } + } + + SetVerboseMode(verbose); + for (int i = 0; i < sizeof(CardAddresses) / 2; i++) { + keyNum[0] = CardAddresses[i] >> 8; + keyNum[1] = CardAddresses[i] & 0xff; + res = MFPWritePerso(keyNum, key, false, true, data, sizeof(data), &datalen); + if (!res && (datalen == 3) && data[0] == 0x09) { + PrintAndLog("Skipped[%04x]...", CardAddresses[i]); + } else { + if (res || (datalen != 3) || data[0] != 0x90) { + PrintAndLog("Write error on address %04x", CardAddresses[i]); + break; + } + } + } + + DropField(); + + if (res) + return res; + + PrintAndLog("Done."); + + return 0; +} + +int CmdHFMFPCommitPerso(const char *cmd) { + CLIParserInit("hf mfp commitp", + "Executes Commit Perso command. Can be used in SL0 mode only.", + "Usage:\n\thf mfp commitp -> \n"); + + void* argtable[] = { + arg_param_begin, + arg_lit0("vV", "verbose", "show internal data."), + arg_int0(NULL, NULL, "SL mode", NULL), + arg_param_end + }; + CLIExecWithReturn(cmd, argtable, true); + + bool verbose = arg_get_lit(1); + CLIParserFree(); + + SetVerboseMode(verbose); + + uint8_t data[250] = {0}; + int datalen = 0; + + int res = MFPCommitPerso(true, false, data, sizeof(data), &datalen); + if (res) { + PrintAndLog("Exchange error: %d", res); + return res; + } + + if (datalen != 3) { + PrintAndLog("Command must return 3 bytes instead of: %d", datalen); + return 1; + } + + if (data[0] != 0x90) { + PrintAndLog("Command error: %02x %s", data[0], GetErrorDescription(data[0])); + return 1; + } + PrintAndLog("Switch level OK."); + + return 0; +} + +int CmdHFMFPAuth(const char *cmd) { + uint8_t keyn[250] = {0}; + int keynlen = 0; + uint8_t key[250] = {0}; + int keylen = 0; + + CLIParserInit("hf mfp auth", + "Executes AES authentication command for Mifare Plus card", + "Usage:\n\thf mfp auth 4000 000102030405060708090a0b0c0d0e0f -> executes authentication\n" + "\thf mfp auth 9003 FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF -v -> executes authentication and shows all the system data\n"); + + void* argtable[] = { + arg_param_begin, + arg_lit0("vV", "verbose", "show internal data."), + arg_str1(NULL, NULL, "", NULL), + arg_str1(NULL, NULL, "", NULL), + arg_param_end + }; + CLIExecWithReturn(cmd, argtable, true); + + bool verbose = arg_get_lit(1); + CLIGetHexWithReturn(2, keyn, &keynlen); + CLIGetHexWithReturn(3, key, &keylen); + CLIParserFree(); + + if (keynlen != 2) { + PrintAndLog("ERROR: must be 2 bytes long instead of: %d", keynlen); + return 1; + } + + if (keylen != 16) { + PrintAndLog("ERROR: must be 16 bytes long instead of: %d", keylen); + return 1; + } + + return MifareAuth4(NULL, keyn, key, true, false, verbose); +} + +int CmdHFMFPRdbl(const char *cmd) { + uint8_t keyn[2] = {0}; + uint8_t key[250] = {0}; + int keylen = 0; + + CLIParserInit("hf mfp rdbl", + "Reads several blocks from Mifare Plus card.", + "Usage:\n\thf mfp rdbl 0 000102030405060708090a0b0c0d0e0f -> executes authentication and read block 0 data\n" + "\thf mfp rdbl 1 -v -> executes authentication and shows sector 1 data with default key 0xFF..0xFF and some additional data\n"); + + void* argtable[] = { + arg_param_begin, + arg_lit0("vV", "verbose", "show internal data."), + arg_int0("nN", "count", "blocks count (by default 1).", NULL), + arg_lit0("bB", "keyb", "use key B (by default keyA)."), + arg_lit0("pP", "plain", "plain communication mode between reader and card."), + arg_int1(NULL, NULL, "", NULL), + arg_str0(NULL, NULL, "", NULL), + arg_param_end + }; + CLIExecWithReturn(cmd, argtable, false); + + bool verbose = arg_get_lit(1); + int blocksCount = arg_get_int_def(2, 1); + bool keyB = arg_get_lit(3); + int plain = arg_get_lit(4); + uint32_t blockn = arg_get_int(5); + CLIGetHexWithReturn(6, key, &keylen); + CLIParserFree(); + + SetVerboseMode(verbose); + + if (!keylen) { + memmove(key, DefaultKey, 16); + keylen = 16; + } + + if (blockn > 255) { + PrintAndLog("ERROR: must be in range [0..255] instead of: %d", blockn); + return 1; + } + + if (keylen != 16) { + PrintAndLog("ERROR: must be 16 bytes long instead of: %d", keylen); + return 1; + } + + // 3 blocks - wo iso14443-4 chaining + if (blocksCount > 3) { + PrintAndLog("ERROR: blocks count must be less than 3 instead of: %d", blocksCount); + return 1; + } + + if (blocksCount > 1 && mfIsSectorTrailer(blockn)) { + PrintAndLog("WARNING: trailer!"); + } + + uint8_t sectorNum = mfSectorNum(blockn & 0xff); + uint16_t uKeyNum = 0x4000 + sectorNum * 2 + (keyB ? 1 : 0); + keyn[0] = uKeyNum >> 8; + keyn[1] = uKeyNum & 0xff; + if (verbose) + PrintAndLog("--block:%d sector[%d]:%02x key:%04x", blockn, mfNumBlocksPerSector(sectorNum), sectorNum, uKeyNum); + + mf4Session session; + int res = MifareAuth4(&session, keyn, key, true, true, verbose); + if (res) { + PrintAndLog("Authentication error: %d", res); + return res; + } + + uint8_t data[250] = {0}; + int datalen = 0; + uint8_t mac[8] = {0}; + res = MFPReadBlock(&session, plain, blockn & 0xff, blocksCount, false, false, data, sizeof(data), &datalen, mac); + if (res) { + PrintAndLog("Read error: %d", res); + return res; + } + + if (datalen && data[0] != 0x90) { + PrintAndLog("Card read error: %02x %s", data[0], GetErrorDescription(data[0])); + return 6; + } + + if (datalen != 1 + blocksCount * 16 + 8 + 2) { + PrintAndLog("Error return length:%d", datalen); + return 5; + } + + int indx = blockn; + for(int i = 0; i < blocksCount; i++) { + PrintAndLog("data[%03d]: %s", indx, sprint_hex(&data[1 + i * 16], 16)); + indx++; + if (mfIsSectorTrailer(indx) && i != blocksCount - 1){ + PrintAndLog("data[%03d]: ------------------- trailer -------------------", indx); + indx++; + } + } + + if (memcmp(&data[blocksCount * 16 + 1], mac, 8)) { + PrintAndLog("WARNING: mac not equal..."); + PrintAndLog("MAC card: %s", sprint_hex(&data[blocksCount * 16 + 1], 8)); + PrintAndLog("MAC reader: %s", sprint_hex(mac, 8)); + } else { + if(verbose) + PrintAndLog("MAC: %s", sprint_hex(&data[blocksCount * 16 + 1], 8)); + } + + return 0; +} + +int CmdHFMFPRdsc(const char *cmd) { + uint8_t keyn[2] = {0}; + uint8_t key[250] = {0}; + int keylen = 0; + + CLIParserInit("hf mfp rdsc", + "Reads one sector from Mifare Plus card.", + "Usage:\n\thf mfp rdsc 0 000102030405060708090a0b0c0d0e0f -> executes authentication and read sector 0 data\n" + "\thf mfp rdsc 1 -v -> executes authentication and shows sector 1 data with default key 0xFF..0xFF and some additional data\n"); + + void* argtable[] = { + arg_param_begin, + arg_lit0("vV", "verbose", "show internal data."), + arg_lit0("bB", "keyb", "use key B (by default keyA)."), + arg_lit0("pP", "plain", "plain communication mode between reader and card."), + arg_int1(NULL, NULL, "", NULL), + arg_str0(NULL, NULL, "", NULL), + arg_param_end + }; + CLIExecWithReturn(cmd, argtable, false); + + bool verbose = arg_get_lit(1); + bool keyB = arg_get_lit(2); + bool plain = arg_get_lit(3); + uint32_t sectorNum = arg_get_int(4); + CLIGetHexWithReturn(5, key, &keylen); + CLIParserFree(); + + SetVerboseMode(verbose); + + if (!keylen) { + memmove(key, DefaultKey, 16); + keylen = 16; + } + + if (sectorNum > 39) { + PrintAndLog("ERROR: must be in range [0..39] instead of: %d", sectorNum); + return 1; + } + + if (keylen != 16) { + PrintAndLog("ERROR: must be 16 bytes long instead of: %d", keylen); + return 1; + } + + uint16_t uKeyNum = 0x4000 + sectorNum * 2 + (keyB ? 1 : 0); + keyn[0] = uKeyNum >> 8; + keyn[1] = uKeyNum & 0xff; + if (verbose) + PrintAndLog("--sector[%d]:%02x key:%04x", mfNumBlocksPerSector(sectorNum), sectorNum, uKeyNum); + + mf4Session session; + int res = MifareAuth4(&session, keyn, key, true, true, verbose); + if (res) { + PrintAndLog("Authentication error: %d", res); + return res; + } + + uint8_t data[250] = {0}; + int datalen = 0; + uint8_t mac[8] = {0}; + for(int n = mfFirstBlockOfSector(sectorNum); n < mfFirstBlockOfSector(sectorNum) + mfNumBlocksPerSector(sectorNum); n++) { + res = MFPReadBlock(&session, plain, n & 0xff, 1, false, true, data, sizeof(data), &datalen, mac); + if (res) { + PrintAndLog("Read error: %d", res); + DropField(); + return res; + } + + if (datalen && data[0] != 0x90) { + PrintAndLog("Card read error: %02x %s", data[0], GetErrorDescription(data[0])); + DropField(); + return 6; + } + if (datalen != 1 + 16 + 8 + 2) { + PrintAndLog("Error return length:%d", datalen); + DropField(); + return 5; + } + + PrintAndLog("data[%03d]: %s", n, sprint_hex(&data[1], 16)); + + if (memcmp(&data[1 + 16], mac, 8)) { + PrintAndLog("WARNING: mac on block %d not equal...", n); + PrintAndLog("MAC card: %s", sprint_hex(&data[1 + 16], 8)); + PrintAndLog("MAC reader: %s", sprint_hex(mac, 8)); + } else { + if(verbose) + PrintAndLog("MAC: %s", sprint_hex(&data[1 + 16], 8)); + } + } + DropField(); + + return 0; +} + +int CmdHFMFPWrbl(const char *cmd) { + uint8_t keyn[2] = {0}; + uint8_t key[250] = {0}; + int keylen = 0; + uint8_t datain[250] = {0}; + int datainlen = 0; + + CLIParserInit("hf mfp wrbl", + "Writes one block to Mifare Plus card.", + "Usage:\n\thf mfp wrbl 1 ff0000000000000000000000000000ff 000102030405060708090a0b0c0d0e0f -> writes block 1 data\n" + "\thf mfp wrbl 2 ff0000000000000000000000000000ff -v -> writes block 2 data with default key 0xFF..0xFF and some additional data\n"); + + void* argtable[] = { + arg_param_begin, + arg_lit0("vV", "verbose", "show internal data."), + arg_lit0("bB", "keyb", "use key B (by default keyA)."), + arg_int1(NULL, NULL, "", NULL), + arg_str1(NULL, NULL, "", NULL), + arg_str0(NULL, NULL, "", NULL), + arg_param_end + }; + CLIExecWithReturn(cmd, argtable, false); + + bool verbose = arg_get_lit(1); + bool keyB = arg_get_lit(2); + uint32_t blockNum = arg_get_int(3); + CLIGetHexWithReturn(4, datain, &datainlen); + CLIGetHexWithReturn(5, key, &keylen); + CLIParserFree(); + + SetVerboseMode(verbose); + + if (!keylen) { + memmove(key, DefaultKey, 16); + keylen = 16; + } + + if (blockNum > 39) { + PrintAndLog("ERROR: must be in range [0..255] instead of: %d", blockNum); + return 1; + } + + if (keylen != 16) { + PrintAndLog("ERROR: must be 16 bytes long instead of: %d", keylen); + return 1; + } + + if (datainlen != 16) { + PrintAndLog("ERROR: must be 16 bytes long instead of: %d", datainlen); + return 1; + } + + uint8_t sectorNum = mfSectorNum(blockNum & 0xff); + uint16_t uKeyNum = 0x4000 + sectorNum * 2 + (keyB ? 1 : 0); + keyn[0] = uKeyNum >> 8; + keyn[1] = uKeyNum & 0xff; + if (verbose) + PrintAndLog("--block:%d sector[%d]:%02x key:%04x", blockNum & 0xff, mfNumBlocksPerSector(sectorNum), sectorNum, uKeyNum); + + mf4Session session; + int res = MifareAuth4(&session, keyn, key, true, true, verbose); + if (res) { + PrintAndLog("Authentication error: %d", res); + return res; + } + + uint8_t data[250] = {0}; + int datalen = 0; + uint8_t mac[8] = {0}; + res = MFPWriteBlock(&session, blockNum & 0xff, datain, false, false, data, sizeof(data), &datalen, mac); + if (res) { + PrintAndLog("Write error: %d", res); + DropField(); + return res; + } + + if (datalen != 3 && (datalen != 3 + 8)) { + PrintAndLog("Error return length:%d", datalen); + DropField(); + return 5; + } + + if (datalen && data[0] != 0x90) { + PrintAndLog("Card write error: %02x %s", data[0], GetErrorDescription(data[0])); + DropField(); + return 6; + } + + if (memcmp(&data[1], mac, 8)) { + PrintAndLog("WARNING: mac not equal..."); + PrintAndLog("MAC card: %s", sprint_hex(&data[1], 8)); + PrintAndLog("MAC reader: %s", sprint_hex(mac, 8)); + } else { + if(verbose) + PrintAndLog("MAC: %s", sprint_hex(&data[1], 8)); + } + + DropField(); + PrintAndLog("Write OK."); + return 0; +} + static command_t CommandTable[] = { {"help", CmdHelp, 1, "This help"}, {"info", CmdHFMFPInfo, 0, "Info about Mifare Plus tag"}, + {"wrp", CmdHFMFPWritePerso, 0, "Write Perso command"}, + {"initp", CmdHFMFPInitPerso, 0, "Fills all the card's keys"}, + {"commitp", CmdHFMFPCommitPerso, 0, "Move card to SL1 or SL3 mode"}, + {"auth", CmdHFMFPAuth, 0, "Authentication"}, + {"rdbl", CmdHFMFPRdbl, 0, "Read blocks"}, + {"rdsc", CmdHFMFPRdsc, 0, "Read sectors"}, + {"wrbl", CmdHFMFPWrbl, 0, "Write blocks"}, {NULL, NULL, 0, NULL} };