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proxmark3/client/src/cmdlfhitag.c
Doridian 789f807e83 100
2022-06-11 15:32:08 -07:00

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//-----------------------------------------------------------------------------
// Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// See LICENSE.txt for the text of the license.
//-----------------------------------------------------------------------------
// Low frequency Hitag support
//-----------------------------------------------------------------------------
#include "cmdlfhitag.h"
#include <ctype.h>
#include "cmdparser.h" // command_t
#include "comms.h"
#include "cmdtrace.h"
#include "commonutil.h"
#include "hitag.h"
#include "fileutils.h" // savefile
#include "protocols.h" // defines
#include "cliparser.h"
#include "crc.h"
static int CmdHelp(const char *Cmd);
static const char *getHitagTypeStr(uint32_t uid) {
//uid s/n ********
uint8_t type = (uid >> 4) & 0xF;
switch (type) {
case 1:
return "PCF 7936";
case 2:
return "PCF 7946";
case 3:
return "PCF 7947";
case 4:
return "PCF 7942/44";
case 5:
return "PCF 7943";
case 6:
return "PCF 7941";
case 7:
return "PCF 7952";
case 9:
return "PCF 7945";
default:
return "";
}
}
/*
static size_t nbytes(size_t nbits) {
return (nbits / 8) + ((nbits % 8) > 0);
}
*/
static int CmdLFHitagList(const char *Cmd) {
return CmdTraceListAlias(Cmd, "lf hitag", "hitag2");
/*
uint8_t *got = calloc(PM3_CMD_DATA_SIZE, sizeof(uint8_t));
if (!got) {
PrintAndLogEx(WARNING, "Cannot allocate memory for trace");
return PM3_EMALLOC;
}
// Query for the actual size of the trace
PacketResponseNG response;
if (!GetFromDevice(BIG_BUF, got, PM3_CMD_DATA_SIZE, 0, NULL, 0, &response, 2500, false)) {
PrintAndLogEx(WARNING, "command execution time out");
free(got);
return PM3_ETIMEOUT;
}
uint16_t traceLen = response.arg[2];
if (traceLen > PM3_CMD_DATA_SIZE) {
uint8_t *p = realloc(got, traceLen);
if (p == NULL) {
PrintAndLogEx(WARNING, "Cannot allocate memory for trace");
free(got);
return PM3_EMALLOC;
}
got = p;
if (!GetFromDevice(BIG_BUF, got, traceLen, 0, NULL, 0, NULL, 2500, false)) {
PrintAndLogEx(WARNING, "command execution time out");
free(got);
return PM3_ETIMEOUT;
}
}
PrintAndLogEx(NORMAL, "recorded activity (TraceLen = %d bytes):");
PrintAndLogEx(NORMAL, " ETU :nbits: who bytes");
PrintAndLogEx(NORMAL, "---------+-----+----+-----------");
int i = 0;
int prev = -1;
int len = strlen(Cmd);
char filename[FILE_PATH_SIZE] = { 0x00 };
FILE *f = NULL;
if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
memcpy(filename, Cmd, len);
if (strlen(filename) > 0) {
f = fopen(filename, "wb");
if (!f) {
PrintAndLogEx(ERR, "Error: Could not open file [%s]", filename);
return PM3_EFILE;
}
}
for (;;) {
if (i >= traceLen) { break; }
bool isResponse;
int timestamp = *((uint32_t *)(got + i));
if (timestamp & 0x80000000) {
timestamp &= 0x7fffffff;
isResponse = 1;
} else {
isResponse = 0;
}
int parityBits = *((uint32_t *)(got + i + 4));
// 4 bytes of additional information...
// maximum of 32 additional parity bit information
//
// TODO:
// at each quarter bit period we can send power level (16 levels)
// or each half bit period in 256 levels.
int bits = got[i + 8];
int len = nbytes(got[i + 8]);
if (len > 100) {
break;
}
if (i + len > traceLen) { break;}
uint8_t *frame = (got + i + 9);
// Break and stick with current result if buffer was not completely full
if (frame[0] == 0x44 && frame[1] == 0x44 && frame[3] == 0x44) { break; }
char line[1000] = "";
int j;
for (j = 0; j < len; j++) {
int offset = j * 4;
//if((parityBits >> (len - j - 1)) & 0x01) {
if (isResponse && (oddparity8(frame[j]) != ((parityBits >> (len - j - 1)) & 0x01))) {
snprintf(line + offset, sizeof(line) - offset, "%02x! ", frame[j]);
} else {
snprintf(line + offset, sizeof(line) - offset, "%02x ", frame[j]);
}
}
PrintAndLogEx(NORMAL, " +%7d: %3d: %s %s",
(prev < 0 ? 0 : (timestamp - prev)),
bits,
(isResponse ? "TAG" : " "),
line);
if (f) {
fprintf(f, " +%7d: %3d: %s %s\n",
(prev < 0 ? 0 : (timestamp - prev)),
bits,
(isResponse ? "TAG" : " "),
line);
}
prev = timestamp;
i += (len + 9);
}
if (f) {
fclose(f);
PrintAndLogEx(NORMAL, "Recorded activity successfully written to file: %s", filename);
}
free(got);
return PM3_SUCCES;
*/
}
static int CmdLFHitagSniff(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "lf hitag sniff",
"Sniff traffic between Hitag reader and tag.\n"
"Use " _YELLOW_("`lf hitag list`")" to view collected data.",
"lf hitag sniff"
);
void *argtable[] = {
arg_param_begin,
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, true);
CLIParserFree(ctx);
clearCommandBuffer();
SendCommandNG(CMD_LF_HITAG_SNIFF, NULL, 0);
PrintAndLogEx(HINT, "HINT: Try " _YELLOW_("`lf hitag list`")" to view collected data");
return PM3_SUCCESS;
}
// eload , to be implemented
static int CmdLFHitagEload(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "lf hitag eload",
"Loads hitag tag dump into emulator memory on device",
"lf hitag eload -2 -f lf-hitag-11223344-dump.bin\n");
void *argtable[] = {
arg_param_begin,
arg_str1("f", "file", "<fn>", "Specfiy dump filename"),
arg_lit0("1", NULL, "Card type Hitag1"),
arg_lit0("2", NULL, "Card type Hitag2"),
arg_lit0("s", NULL, "Card type HitagS"),
arg_lit0("m", NULL, "Card type HitagM"),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, false);
int fnlen = 0;
char filename[FILE_PATH_SIZE] = {0};
CLIParamStrToBuf(arg_get_str(ctx, 1), (uint8_t *)filename, FILE_PATH_SIZE, &fnlen);
bool use_ht1 = arg_get_lit(ctx, 2);
bool use_ht2 = arg_get_lit(ctx, 3);
bool use_hts = arg_get_lit(ctx, 4);
bool use_htm = arg_get_lit(ctx, 5);
CLIParserFree(ctx);
uint8_t n = (use_ht1 + use_ht2 + use_hts + use_htm);
if (n != 1) {
PrintAndLogEx(ERR, "error, only specify one Hitag type");
return PM3_EINVARG;
}
// read dump file
uint8_t *dump = NULL;
size_t bytes_read = (4 * 64);
int res = pm3_load_dump(filename, (void **)&dump, &bytes_read, (4 * 64));
if (res != PM3_SUCCESS) {
return res;
}
// check dump len..
if (bytes_read == 48 || bytes_read == 4 * 64) {
lf_hitag_t *payload = calloc(1, sizeof(lf_hitag_t) + bytes_read);
if (use_ht1)
payload->type = 1;
if (use_ht2)
payload->type = 2;
if (use_hts)
payload->type = 3;
if (use_htm)
payload->type = 4;
payload->len = bytes_read;
memcpy(payload->data, dump, bytes_read);
clearCommandBuffer();
SendCommandNG(CMD_LF_HITAG_ELOAD, (uint8_t *)payload, 3 + bytes_read);
free(payload);
} else {
PrintAndLogEx(ERR, "error, wrong dump file size. got %zu", bytes_read);
}
free(dump);
return PM3_SUCCESS;
}
static int CmdLFHitagSim(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "lf hitag sim",
"Simulate Hitag2 / HitagS transponder\n"
"You need to `lf hitag eload` first",
"lf hitag sim -2"
);
void *argtable[] = {
arg_param_begin,
arg_lit0("1", NULL, "simulate Hitag1"),
arg_lit0("2", NULL, "simulate Hitag2"),
arg_lit0("s", NULL, "simulate HitagS"),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, true);
bool use_ht1 = arg_get_lit(ctx, 1);
bool use_ht2 = arg_get_lit(ctx, 2);
bool use_hts = arg_get_lit(ctx, 3);
CLIParserFree(ctx);
if ((use_ht1 + use_ht2 + use_hts) > 1) {
PrintAndLogEx(ERR, "error, Only specify one Hitag type");
return PM3_EINVARG;
}
uint16_t cmd = CMD_LF_HITAG_SIMULATE;
// if (use_ht1)
// cmd = CMD_LF_HITAG1_SIMULATE;
if (use_hts)
cmd = CMD_LF_HITAGS_SIMULATE;
clearCommandBuffer();
SendCommandMIX(cmd, 0, 0, 0, NULL, 0);
return PM3_SUCCESS;
}
static void printHitag2Configuration(uint8_t config) {
char msg[100];
memset(msg, 0, sizeof(msg));
char bits[9];
char *bs = bits;
for (uint8_t i = 0 ; i < 8 ; i++) {
snprintf(bs, sizeof(bits) - i, "%1d", (config >> (7 - i)) & 1);
bs++;
}
PrintAndLogEx(INFO, "\n\nHitag2 tag information ");
PrintAndLogEx(INFO, "------------------------------------");
//configuration byte
PrintAndLogEx(SUCCESS, "Config byte : 0x%02X [ %s ]", config, bits);
// encoding
strcat(msg, "Encoding : ");
if (config & 0x1) {
strcat(msg + strlen(msg), _YELLOW_("Biphase"));
} else {
strcat(msg + strlen(msg), _YELLOW_("Manchester"));
}
PrintAndLogEx(SUCCESS, "%s", msg);
memset(msg, 0, sizeof(msg));
// version
strcat(msg, "Coding in HITAG 2 operation: %s");
uint8_t foo = (config & 0x6) >> 1;
switch (foo) {
case 0:
PrintAndLogEx(SUCCESS, "Version : public mode B, Coding: biphase");
PrintAndLogEx(SUCCESS, msg, (config & 0x1) ? "biphase" : "manchester");
break;
case 1:
PrintAndLogEx(SUCCESS, "Version : public mode A, Coding: manchester");
PrintAndLogEx(SUCCESS, msg, (config & 0x1) ? "biphase" : "manchester");
break;
case 2:
PrintAndLogEx(SUCCESS, "Version : public mode C, Coding: biphase");
PrintAndLogEx(SUCCESS, msg, (config & 0x1) ? "biphase" : "manchester");
break;
case 3:
PrintAndLogEx(SUCCESS, "Version : Hitag2");
PrintAndLogEx(SUCCESS, msg, (config & 0x1) ? "biphase" : "manchester");
break;
}
memset(msg, 0, sizeof(msg));
// mode
strcat(msg, "Tag is in : ");
if (config & 0x8) {
strcat(msg + strlen(msg), _YELLOW_("Crypto mode"));
} else {
strcat(msg + strlen(msg), _YELLOW_("Password mode"));
}
PrintAndLogEx(SUCCESS, "%s", msg);
memset(msg, 0, sizeof(msg));
// page access
strcat(msg, "Page 6,7 : ");
if (config & 0x10) {
strcat(msg + strlen(msg), "read only");
} else {
strcat(msg + strlen(msg), _GREEN_("RW"));
}
PrintAndLogEx(SUCCESS, "%s", msg);
memset(msg, 0, sizeof(msg));
// page access
strcat(msg, "Page 4,5 : ");
if (config & 0x20) {
strcat(msg + strlen(msg), "read only");
} else {
strcat(msg + strlen(msg), _GREEN_("RW"));
}
PrintAndLogEx(SUCCESS, "%s", msg);
memset(msg, 0, sizeof(msg));
// OTP
strcat(msg, "Page 3 : ");
if (config & 0x40) {
strcat(msg + strlen(msg), "read only. Configuration byte and password tag " _RED_("FIXED / IRREVERSIBLE"));
} else {
strcat(msg + strlen(msg), _GREEN_("RW"));
}
PrintAndLogEx(SUCCESS, "%s", msg);
memset(msg, 0, sizeof(msg));
// OTP
if (config & 0x80) {
strcat(msg, "Page 1 : " _RED_("locked") "\n");
strcat(msg + strlen(msg), "Page 2 : ");
if (config & 0x8) {
strcat(msg + strlen(msg), _RED_("locked"));
} else {
strcat(msg + strlen(msg), "read only");
}
} else {
strcat(msg, "Page 1,2 : " _GREEN_("RW"));
}
PrintAndLogEx(SUCCESS, "%s", msg);
PrintAndLogEx(INFO, "------------------------------------");
}
static bool getHitag2Uid(uint32_t *uid) {
hitag_data htd;
memset(&htd, 0, sizeof(htd));
clearCommandBuffer();
SendCommandMIX(CMD_LF_HITAG_READER, RHT2F_UID_ONLY, 0, 0, &htd, sizeof(htd));
PacketResponseNG resp;
if (!WaitForResponseTimeout(CMD_ACK, &resp, 2500)) {
PrintAndLogEx(WARNING, "timeout while waiting for reply.");
return false;
}
if (resp.oldarg[0] == false) {
PrintAndLogEx(DEBUG, "DEBUG: Error - failed getting UID");
return false;
}
if (uid)
*uid = bytes_to_num(resp.data.asBytes, 4);
return true;
}
static int CmdLFHitagInfo(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "lf hitag info",
"Hitag2 tag information",
"lf hitag info"
);
void *argtable[] = {
arg_param_begin,
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, true);
CLIParserFree(ctx);
// read UID
uint32_t uid = 0;
if (getHitag2Uid(&uid) == false)
return PM3_ESOFT;
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(INFO, "--- " _CYAN_("Tag Information") " ---------------------------");
PrintAndLogEx(INFO, "-------------------------------------------------------------");
PrintAndLogEx(SUCCESS, " UID: " _GREEN_("%08X"), uid);
PrintAndLogEx(SUCCESS, " TYPE: " _GREEN_("%s"), getHitagTypeStr(uid));
// how to determine Hitag types?
// read block3, get configuration byte.
// common configurations.
// printHitag2Configuration(0x06);
//printHitag2Configuration( 0x0E );
//printHitag2Configuration( 0x02 );
//printHitag2Configuration( 0x00 );
//printHitag2Configuration( 0x04 );
PrintAndLogEx(INFO, "-------------------------------------------------------------");
return PM3_SUCCESS;
}
// TODO: iceman
// Hitag2 reader, problem is that this command mixes up stuff. So 26 give uid. 21 etc will also give you a memory dump !?
//
static int CmdLFHitagReader(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "lf hitag reader",
"Act like a Hitag Reader",
"Hitag S\n"
" lf hitag reader --01 --nrar 0102030411223344\n"
" lf hitag reader --02 -k 4F4E4D494B52\n"
"Hitag 2\n"
" lf hitag reader --21 -k 4D494B52\n"
" lf hitag reader --22 --nrar 0102030411223344\n"
" lf hitag reader --23 -k 4F4E4D494B52\n"
" lf hitag reader --26\n"
);
void *argtable[] = {
arg_param_begin,
arg_lit0(NULL, "01", "HitagS, read all pages, challenge mode"),
arg_lit0(NULL, "02", "HitagS, read all pages, crypto mode. Set key=0 for no auth"),
arg_lit0(NULL, "21", "Hitag2, read all pages, password mode. def 4D494B52 (MIKR)"),
arg_lit0(NULL, "22", "Hitag2, read all pages, challenge mode"),
arg_lit0(NULL, "23", "Hitag2, read all pages, crypto mode. Key ISK high + ISK low. def 4F4E4D494B52 (ONMIKR)"),
arg_lit0(NULL, "25", "Hitag2, test recorded authentications (replay?)"),
arg_lit0(NULL, "26", "Hitag2, read UID"),
arg_str0("k", "key", "<hex>", "key, 4 or 6 hex bytes"),
arg_str0(NULL, "nrar", "<hex>", "nonce / answer reader, 8 hex bytes"),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, false);
// Hitag S
bool s01 = arg_get_lit(ctx, 1);
bool s02 = arg_get_lit(ctx, 2);
// Hitag 2
bool h21 = arg_get_lit(ctx, 3);
bool h22 = arg_get_lit(ctx, 4);
bool h23 = arg_get_lit(ctx, 5);
bool h25 = arg_get_lit(ctx, 6);
bool h26 = arg_get_lit(ctx, 7);
uint8_t key[6];
int keylen = 0;
int res = CLIParamHexToBuf(arg_get_str(ctx, 8), key, sizeof(key), &keylen);
if (res != 0) {
CLIParserFree(ctx);
return PM3_EINVARG;
}
uint8_t nrar[8];
int nalen = 0;
res = CLIParamHexToBuf(arg_get_str(ctx, 9), nrar, sizeof(nrar), &nalen);
CLIParserFree(ctx);
if (res != 0) {
return PM3_EINVARG;
}
// sanity checks
if (keylen != 0 && keylen != 4 && keylen != 6) {
PrintAndLogEx(WARNING, "Wrong KEY len expected 0, 4 or 6, got %d", keylen);
return PM3_EINVARG;
}
if (nalen != 0 && nalen != 8) {
PrintAndLogEx(WARNING, "Wrong NR/AR len expected 0 or 8, got %d", nalen);
return PM3_EINVARG;
}
uint8_t foo = (s01 + s02 + h21 + h22 + h23 + h25 + h26);
if (foo > 1) {
PrintAndLogEx(WARNING, "Only specify one HITAG reader cmd");
return PM3_EINVARG;
} else if (foo == 0) {
PrintAndLogEx(WARNING, "Specify one HITAG reader cms");
return PM3_EINVARG;
}
hitag_function htf;
hitag_data htd;
memset(&htd, 0, sizeof(htd));
uint16_t cmd = CMD_LF_HITAG_READER;
if (s01) {
cmd = CMD_LF_HITAGS_READ;
htf = RHTSF_CHALLENGE;
memcpy(htd.auth.NrAr, nrar, sizeof(nrar));
}
if (s02) {
cmd = CMD_LF_HITAGS_READ;
htf = RHTSF_KEY;
memcpy(htd.crypto.key, key, sizeof(key));
}
if (h21) {
htf = RHT2F_PASSWORD;
memcpy(htd.pwd.password, key, 4);
}
if (h22) {
htf = RHT2F_AUTHENTICATE;
memcpy(htd.auth.NrAr, nrar, sizeof(nrar));
}
if (h23) {
htf = RHT2F_CRYPTO;
memcpy(htd.crypto.key, key, sizeof(key));
}
if (h25) {
htf = RHT2F_TEST_AUTH_ATTEMPTS;
}
if (h26) {
htf = RHT2F_UID_ONLY;
}
clearCommandBuffer();
SendCommandMIX(cmd, htf, 0, 0, &htd, sizeof(htd));
PacketResponseNG resp;
if (WaitForResponseTimeout(CMD_ACK, &resp, 2000) == false) {
PrintAndLogEx(WARNING, "timeout while waiting for reply.");
return PM3_ETIMEOUT;
}
if (resp.oldarg[0] == false) {
PrintAndLogEx(DEBUG, "DEBUG: Error - hitag failed");
return PM3_ESOFT;
}
uint32_t id = bytes_to_num(resp.data.asBytes, 4);
uint8_t *data = resp.data.asBytes;
PrintAndLogEx(SUCCESS, " UID: " _YELLOW_("%08x"), id);
if (htf != RHT2F_UID_ONLY) {
// block3, 1 byte
printHitag2Configuration(data[4 * 3]);
}
return PM3_SUCCESS;
}
static int CmdLFHitagCheckChallenges(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "lf hitag cc",
"Check challenges, load a file with saved hitag crypto challenges and test them all.\n"
"The file should be 8 * 60 bytes long, the file extension defaults to " _YELLOW_("`.cc`") " ",
"lf hitag cc -f my_hitag_challenges"
);
void *argtable[] = {
arg_param_begin,
arg_str1("f", "file", "<fn>", "filename to load ( w/o ext )"),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, true);
int fnlen = 0;
char filename[FILE_PATH_SIZE] = {0};
CLIParamStrToBuf(arg_get_str(ctx, 1), (uint8_t *)filename, FILE_PATH_SIZE, &fnlen);
CLIParserFree(ctx);
clearCommandBuffer();
uint8_t *data = NULL;
size_t datalen = 0;
int res = loadFile_safe(filename, ".cc", (void **)&data, &datalen);
if (res == PM3_SUCCESS) {
if (datalen % 8 == 0) {
SendCommandMIX(CMD_LF_HITAGS_TEST_TRACES, datalen, 0, 0, data, datalen);
} else {
PrintAndLogEx(ERR, "Error, file length mismatch. Expected multiple of 8, got %zu", datalen);
}
}
if (data) {
free(data);
}
return PM3_SUCCESS;
}
static int CmdLFHitagWriter(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "lf hitag writer",
"Act like a Hitag writer"
"In password mode the default key is 4D494B52 (MIKR)\n"
"In crypto mode the default key is 4F4E4D494B52 (ONMIKR) format: ISK high + ISK low.",
"Hitag S\n"
" lf hitag writer --03 --nrar 0102030411223344 -p 3 -d 01020304\n"
" lf hitag writer --04 -k 4F4E4D494B52 -p 3 -d 01020304\n"
"Hitag 2\n"
" lf hitag writer --24 -k 4F4E4D494B52 -p 3 -d 01020304\n"
" lf hitag writer --27 -k 4D494B52 -p 3 -d 01020304\n"
);
void *argtable[] = {
arg_param_begin,
arg_lit0(NULL, "03", "HitagS, write page, challenge mode"),
arg_lit0(NULL, "04", "HitagS, write page, crypto mode. Set key=0 for no auth"),
arg_lit0(NULL, "24", "Hitag2, write page, crypto mode."),
arg_lit0(NULL, "27", "Hitag2, write page, password mode"),
arg_int1("p", "page", "<dec>", "page address to write to"),
arg_str0("d", "data", "<hex>", "data, 4 hex bytes"),
arg_str0("k", "key", "<hex>", "key, 4 or 6 hex bytes"),
arg_str0(NULL, "nrar", "<hex>", "nonce / answer writer, 8 hex bytes"),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, false);
// Hitag S
bool s03 = arg_get_lit(ctx, 1);
bool s04 = arg_get_lit(ctx, 2);
// Hitag 2
bool h24 = arg_get_lit(ctx, 3);
bool h27 = arg_get_lit(ctx, 4);
uint32_t page = arg_get_u32_def(ctx, 5, 0);
uint8_t data[4];
int dlen = 0;
int res = CLIParamHexToBuf(arg_get_str(ctx, 6), data, sizeof(data), &dlen);
if (res != 0) {
CLIParserFree(ctx);
return PM3_EINVARG;
}
uint8_t key[6];
int keylen = 0;
res = CLIParamHexToBuf(arg_get_str(ctx, 7), key, sizeof(key), &keylen);
if (res != 0) {
CLIParserFree(ctx);
return PM3_EINVARG;
}
uint8_t nrar[8];
int nalen = 0;
res = CLIParamHexToBuf(arg_get_str(ctx, 8), nrar, sizeof(nrar), &nalen);
CLIParserFree(ctx);
if (res != 0) {
return PM3_EINVARG;
}
// sanity checks
if (dlen != sizeof(data)) {
PrintAndLogEx(WARNING, "Wrong DATA len expected 4, got %d", dlen);
return PM3_EINVARG;
}
if (keylen != 0 && keylen != 6 && keylen != 4) {
PrintAndLogEx(WARNING, "Wrong KEY len expected 0, 4 or 6, got %d", keylen);
return PM3_EINVARG;
}
if (nalen != 0 && nalen != 8) {
PrintAndLogEx(WARNING, "Wrong NR/AR len expected 0 or 8, got %d", nalen);
return PM3_EINVARG;
}
uint8_t foo = (s03 + s04 + h24 + h27);
if (foo > 1) {
PrintAndLogEx(WARNING, "Only specify one HITAG write cmd");
return PM3_EINVARG;
} else if (foo == 0) {
PrintAndLogEx(WARNING, "Specify one HITAG write cmd");
return PM3_EINVARG;
}
hitag_function htf;
hitag_data htd;
memset(&htd, 0, sizeof(htd));
if (s03) {
htf = WHTSF_CHALLENGE;
memcpy(htd.auth.NrAr, nrar, sizeof(nrar));
memcpy(htd.auth.data, data, sizeof(data));
}
if (s04) {
htf = WHTSF_KEY;
memcpy(htd.crypto.key, key, sizeof(key));
memcpy(htd.crypto.data, data, sizeof(data));
}
if (h24) {
htf = WHT2F_CRYPTO;
memcpy(htd.pwd.password, key, 4);
memcpy(htd.crypto.data, data, sizeof(data));
}
if (h27) {
htf = WHT2F_PASSWORD;
memcpy(htd.pwd.password, key, 4);
memcpy(htd.crypto.data, data, sizeof(data));
}
clearCommandBuffer();
SendCommandMIX(CMD_LF_HITAGS_WRITE, htf, 0, page, &htd, sizeof(htd));
PacketResponseNG resp;
if (WaitForResponseTimeout(CMD_ACK, &resp, 4000) == false) {
PrintAndLogEx(WARNING, "timeout while waiting for reply.");
return PM3_ETIMEOUT;
}
if (resp.oldarg[0] == false) {
PrintAndLogEx(DEBUG, "DEBUG: Error - hitag write failed");
return PM3_ESOFT;
}
return PM3_SUCCESS;
}
static int CmdLFHitag2Dump(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "lf hitag dump",
"Read all card memory and save to file"
"In password mode the default key is 4D494B52 (MIKR)\n"
"In crypto mode the default key is 4F4E4D494B52 (ONMIKR) format: ISK high + ISK low.",
"lf hitag dump -k 4F4E4D494B52\n"
"lf hitag dump -k 4D494B52\n"
);
void *argtable[] = {
arg_param_begin,
arg_str0("f", "file", "<fn>", "specify file name"),
arg_str0("k", "key", "<hex>", "key, 4 or 6 hex bytes"),
arg_str0(NULL, "nrar", "<hex>", "nonce / answer reader, 8 hex bytes"),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, false);
uint8_t filename[FILE_PATH_SIZE] = {0};
int fnlen = 0;
int res = CLIParamHexToBuf(arg_get_str(ctx, 1), filename, sizeof(filename), &fnlen);
if (res != 0) {
CLIParserFree(ctx);
return PM3_EINVARG;
}
uint8_t key[6];
int keylen = 0;
res = CLIParamHexToBuf(arg_get_str(ctx, 2), key, sizeof(key), &keylen);
if (res != 0) {
CLIParserFree(ctx);
return PM3_EINVARG;
}
uint8_t nrar[8];
int nalen = 0;
res = CLIParamHexToBuf(arg_get_str(ctx, 3), nrar, sizeof(nrar), &nalen);
CLIParserFree(ctx);
if (res != 0) {
return PM3_EINVARG;
}
PrintAndLogEx(WARNING, "to be implemented...");
/*
PrintAndLogEx(SUCCESS, "Dumping tag memory...");
clearCommandBuffer();
//SendCommandNG(CMD_LF_HITAG_DUMP, &htd, sizeof(htd));
PacketResponseNG resp;
uint8_t *data = resp.data.asBytes;
if (fnlen < 1) {
char *fptr = filename + snprintf(filename, sizeof(filename), "lf-hitag-");
FillFileNameByUID(fptr, data, "-dump", 4);
}
pm3_save_dump(filename, data, 48, jsfHitag, 4);
*/
return PM3_SUCCESS;
}
// Annotate HITAG protocol
void annotateHitag1(char *exp, size_t size, const uint8_t *cmd, uint8_t cmdsize, bool is_response) {
}
void annotateHitag2(char *exp, size_t size, const uint8_t *cmd, uint8_t cmdsize, bool is_response) {
// iceman: live decrypt of trace?
if (is_response) {
uint8_t cmdbits = (cmd[0] & 0xC0) >> 6;
if (cmdsize == 1) {
if (cmdbits == HITAG2_START_AUTH) {
snprintf(exp, size, "START AUTH");
return;
}
if (cmdbits == HITAG2_HALT) {
snprintf(exp, size, "HALT");
return;
}
}
if (cmdsize == 3) {
if (cmdbits == HITAG2_START_AUTH) {
// C 1 C 0
// 1100 0 00 1 1100 000
uint8_t page = (cmd[0] & 0x38) >> 3;
uint8_t inv_page = ((cmd[0] & 0x1) << 2) | ((cmd[1] & 0xC0) >> 6);
snprintf(exp, size, "READ page(%x) %x", page, inv_page);
return;
}
if (cmdbits == HITAG2_WRITE_PAGE) {
uint8_t page = (cmd[0] & 0x38) >> 3;
uint8_t inv_page = ((cmd[0] & 0x1) << 2) | ((cmd[1] & 0xC0) >> 6);
snprintf(exp, size, "WRITE page(%x) %x", page, inv_page);
return;
}
}
if (cmdsize == 9) {
snprintf(exp, size, "Nr Ar Is response");
return;
}
} else {
if (cmdsize == 9) {
snprintf(exp, size, "Nr Ar");
return;
}
}
}
void annotateHitagS(char *exp, size_t size, const uint8_t *cmd, uint8_t cmdsize, bool is_response) {
}
static command_t CommandTable[] = {
{"help", CmdHelp, AlwaysAvailable, "This help"},
{"eload", CmdLFHitagEload, IfPm3Hitag, "Load Hitag dump file into emulator memory"},
{"list", CmdLFHitagList, AlwaysAvailable, "List Hitag trace history"},
{"info", CmdLFHitagInfo, IfPm3Hitag, "Hitag2 tag information"},
{"reader", CmdLFHitagReader, IfPm3Hitag, "Act like a Hitag reader"},
{"sim", CmdLFHitagSim, IfPm3Hitag, "Simulate Hitag transponder"},
{"sniff", CmdLFHitagSniff, IfPm3Hitag, "Eavesdrop Hitag communication"},
{"writer", CmdLFHitagWriter, IfPm3Hitag, "Act like a Hitag writer"},
{"dump", CmdLFHitag2Dump, IfPm3Hitag, "Dump Hitag2 tag"},
{"cc", CmdLFHitagCheckChallenges, IfPm3Hitag, "Test all challenges"},
{ NULL, NULL, 0, NULL }
};
static int CmdHelp(const char *Cmd) {
(void)Cmd; // Cmd is not used so far
CmdsHelp(CommandTable);
return PM3_SUCCESS;
}
int CmdLFHitag(const char *Cmd) {
clearCommandBuffer();
return CmdsParse(CommandTable, Cmd);
}
int readHitagUid(void) {
return (CmdLFHitagReader("--26") == PM3_SUCCESS);
}
uint8_t hitag1_CRC_check(uint8_t *d, uint32_t nbit) {
if (nbit < 9) return 2;
return (CRC8Hitag1Bits(d, nbit) == 0);
}
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