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proxmark3/client/src/cmdhflegic.c

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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.
//-----------------------------------------------------------------------------
// High frequency Legic commands
//-----------------------------------------------------------------------------
#include "cmdhflegic.h"
#include <ctype.h> // tolower
#include "pm3line.h" // pm3line_read, pm3line_free
#include "cliparser.h"
#include "cmdparser.h" // command_t
#include "comms.h" // clearCommandBuffer
#include "cmdtrace.h"
#include "crc.h"
#include "crc16.h"
#include "fileutils.h" //saveFile
static int CmdHelp(const char *Cmd);
#define LEGIC_PRIME_MIM22 22
#define LEGIC_PRIME_MIM256 256
#define LEGIC_PRIME_MIM1024 1024
#define LEGIC_BLOCK_SIZE 8
#define LEGIC_PACKET_SIZE (PM3_CMD_DATA_SIZE - sizeof(legic_packet_t))
static bool legic_xor(uint8_t *data, uint16_t cardsize) {
if (cardsize <= 22) {
PrintAndLogEx(INFO, "No obsfuscation such small dump");
return false;
}
uint8_t crc = data[4];
uint32_t calc_crc = CRC8Legic(data, 4);
if (crc != calc_crc) {
PrintAndLogEx(INFO, "CRC mismatch, obsfuscation not possible");
return false;
}
for (uint16_t i = 22; i < cardsize; i++) {
data[i] ^= crc;
}
PrintAndLogEx(SUCCESS, "Applying xoring of data done!");
return true;
}
/*
* Output BigBuf and deobfuscate LEGIC RF tag data.
* This is based on information given in the talk held
* by Henryk Ploetz and Karsten Nohl at 26c3
*/
static int CmdLegicInfo(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "hf legic info",
"Gets information from a LEGIC Prime tag like systemarea, user areas, etc",
"hf legic info");
void *argtable[] = {
arg_param_begin,
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, true);
CLIParserFree(ctx);
int i = 0, k = 0, segmentNum = 0, segment_len = 0, segment_flag = 0;
int crc = 0, wrp = 0, wrc = 0;
uint8_t stamp_len = 0;
uint16_t datalen = 0;
char token_type[6] = {0, 0, 0, 0, 0, 0};
int dcf = 0;
int bIsSegmented = 0;
// tagtype
legic_card_select_t card;
if (legic_get_type(&card) != PM3_SUCCESS) {
PrintAndLogEx(WARNING, "Failed to identify tagtype");
return PM3_ESOFT;
}
PrintAndLogEx(SUCCESS, "Reading full tag memory of " _YELLOW_("%d") " bytes...", card.cardsize);
// allocate receiver buffer
uint8_t *data = calloc(card.cardsize, sizeof(uint8_t));
if (!data) {
PrintAndLogEx(WARNING, "Cannot allocate memory");
return PM3_EMALLOC;
}
int status = legic_read_mem(0, card.cardsize, 0x55, data, &datalen);
if (status != PM3_SUCCESS) {
PrintAndLogEx(WARNING, "Failed reading memory");
free(data);
return status;
}
// Output CDF System area (9 bytes) plus remaining header area (12 bytes)
crc = data[4];
uint32_t calc_crc = CRC8Legic(data, 4);
PrintAndLogEx(SUCCESS, " " _CYAN_("CDF: System Area"));
PrintAndLogEx(NORMAL, "------------------------------------------------------");
PrintAndLogEx(SUCCESS, "MCD: " _GREEN_("%02X") " MSN: " _GREEN_("%s") " MCC: " _GREEN_("%02X") " ( %s )",
data[0],
sprint_hex(data + 1, 3),
data[4],
(calc_crc == crc) ? _GREEN_("ok") : _RED_("fail")
);
// MCD = Manufacturer ID (should be list meaning something?)
token_type[0] = 0;
dcf = ((int)data[6] << 8) | (int)data[5];
// New unwritten media?
if (dcf == 0xFFFF) {
PrintAndLogEx(SUCCESS, "DCF: %d (%02x %02x), Token Type=NM (New Media)",
dcf,
data[5],
data[6]
);
} else if (dcf > 60000) { // Master token?
int fl = 0;
if (data[6] == 0xec) {
strncpy(token_type, "XAM", sizeof(token_type) - 1);
fl = 1;
stamp_len = 0x0c - (data[5] >> 4);
} else {
switch (data[5] & 0x7f) {
case 0x00 ... 0x2f:
strncpy(token_type, "IAM", sizeof(token_type) - 1);
fl = (0x2f - (data[5] & 0x7f)) + 1;
break;
case 0x30 ... 0x6f:
strncpy(token_type, "SAM", sizeof(token_type) - 1);
fl = (0x6f - (data[5] & 0x7f)) + 1;
break;
case 0x70 ... 0x7f:
strncpy(token_type, "GAM", sizeof(token_type) - 1);
fl = (0x7f - (data[5] & 0x7f)) + 1;
break;
}
stamp_len = 0xfc - data[6];
}
PrintAndLogEx(SUCCESS, "DCF: %d (%02x %02x), Token Type=" _YELLOW_("%s") " (OLE=%01u), OL=%02u, FL=%02u",
dcf,
data[5],
data[6],
token_type,
(data[5] & 0x80) >> 7,
stamp_len,
fl
);
} else { // Is IM(-S) type of card...
if (data[7] == 0x9F && data[8] == 0xFF) {
bIsSegmented = 1;
strncpy(token_type, "IM-S", sizeof(token_type) - 1);
} else {
strncpy(token_type, "IM", sizeof(token_type) - 1);
}
PrintAndLogEx(SUCCESS, "DCF: %d (%02x %02x), Token Type = %s (OLE = %01u)",
dcf,
data[5],
data[6],
token_type,
(data[5] & 0x80) >> 7
);
}
// Makes no sense to show this on blank media...
if (dcf != 0xFFFF) {
if (bIsSegmented) {
PrintAndLogEx(SUCCESS, "WRP = %02u, WRC = %01u, RD = %01u, SSC = %02X",
data[7] & 0x0f,
(data[7] & 0x70) >> 4,
(data[7] & 0x80) >> 7,
data[8]
);
}
// Header area is only available on IM-S cards, on master tokens this data is the master token data itself
if (bIsSegmented || dcf > 60000) {
if (dcf > 60000) {
PrintAndLogEx(SUCCESS, "Master token data");
PrintAndLogEx(SUCCESS, "%s", sprint_hex(data + 8, 14));
} else {
PrintAndLogEx(SUCCESS, "Remaining Header Area");
PrintAndLogEx(SUCCESS, "%s", sprint_hex(data + 9, 13));
}
}
}
PrintAndLogEx(NORMAL, "------------------------------------------------------");
uint8_t segCrcBytes[8] = {0, 0, 0, 0, 0, 0, 0, 0};
uint32_t segCalcCRC = 0;
uint32_t segCRC = 0;
// Not Data card?
if (dcf > 60000)
goto out;
PrintAndLogEx(SUCCESS, _CYAN_("ADF: User Area"));
PrintAndLogEx(NORMAL, "------------------------------------------------------");
if (bIsSegmented) {
// Data start point on segmented cards
i = 22;
// decode segments
for (segmentNum = 1; segmentNum < 128; segmentNum++) {
segment_len = ((data[i + 1] ^ crc) & 0x0f) * 256 + (data[i] ^ crc);
segment_flag = ((data[i + 1] ^ crc) & 0xf0) >> 4;
wrp = (data[i + 2] ^ crc);
wrc = ((data[i + 3] ^ crc) & 0x70) >> 4;
bool hasWRC = (wrc > 0);
bool hasWRP = (wrp > wrc);
int wrp_len = (wrp - wrc);
int remain_seg_payload_len = (segment_len - wrp - 5);
// validate segment-crc
segCrcBytes[0] = data[0]; //uid0
segCrcBytes[1] = data[1]; //uid1
segCrcBytes[2] = data[2]; //uid2
segCrcBytes[3] = data[3]; //uid3
segCrcBytes[4] = (data[i] ^ crc); //hdr0
segCrcBytes[5] = (data[i + 1] ^ crc); //hdr1
segCrcBytes[6] = (data[i + 2] ^ crc); //hdr2
segCrcBytes[7] = (data[i + 3] ^ crc); //hdr3
segCalcCRC = CRC8Legic(segCrcBytes, 8);
segCRC = data[i + 4] ^ crc;
PrintAndLogEx(SUCCESS, "Segment | " _YELLOW_("%02u"), segmentNum);
PrintAndLogEx(SUCCESS, "raw header | 0x%02X 0x%02X 0x%02X 0x%02X",
data[i] ^ crc,
data[i + 1] ^ crc,
data[i + 2] ^ crc,
data[i + 3] ^ crc
);
PrintAndLogEx(SUCCESS, "Segment len | %u, Flag: 0x%X (valid:%01u, last:%01u)",
segment_len,
segment_flag,
(segment_flag & 0x4) >> 2,
(segment_flag & 0x8) >> 3
);
PrintAndLogEx(SUCCESS, " | WRP: %02u, WRC: %02u, RD: %01u, CRC: 0x%02X ( %s )",
wrp,
wrc,
((data[i + 3] ^ crc) & 0x80) >> 7,
segCRC,
(segCRC == segCalcCRC) ? _GREEN_("ok") : _RED_("fail")
);
i += 5;
if (hasWRC) {
PrintAndLogEx(SUCCESS, "\nWRC protected area: (I %d | K %d| WRC %d)", i, k, wrc);
PrintAndLogEx(NORMAL, "\nrow | data");
PrintAndLogEx(NORMAL, "-----+------------------------------------------------");
for (k = i; k < (i + wrc); ++k)
data[k] ^= crc;
print_hex_break(data + i, wrc, 16);
PrintAndLogEx(NORMAL, "-----+------------------------------------------------\n");
i += wrc;
}
if (hasWRP) {
PrintAndLogEx(SUCCESS, "Remaining write protected area: (I %d | K %d | WRC %d | WRP %d WRP_LEN %d)", i, k, wrc, wrp, wrp_len);
PrintAndLogEx(NORMAL, "\nrow | data");
PrintAndLogEx(NORMAL, "-----+------------------------------------------------");
for (k = i; k < (i + wrp_len); ++k)
data[k] ^= crc;
print_hex_break(data + i, wrp_len, 16);
PrintAndLogEx(NORMAL, "-----+------------------------------------------------\n");
i += wrp_len;
// does this one work? (Answer: Only if KGH/BGH is used with BCD encoded card number! So maybe this will show just garbage...)
if (wrp_len == 8) {
PrintAndLogEx(SUCCESS, "Card ID: " _YELLOW_("%2X%02X%02X"),
data[i - 4] ^ crc,
data[i - 3] ^ crc,
data[i - 2] ^ crc
);
}
}
if (remain_seg_payload_len > 0) {
PrintAndLogEx(SUCCESS, "Remaining segment payload: (I %d | K %d | Remain LEN %d)", i, k, remain_seg_payload_len);
PrintAndLogEx(NORMAL, "\nrow | data");
PrintAndLogEx(NORMAL, "-----+------------------------------------------------");
for (k = i; k < (i + remain_seg_payload_len); ++k)
data[k] ^= crc;
print_hex_break(data + i, remain_seg_payload_len, 16);
PrintAndLogEx(NORMAL, "-----+------------------------------------------------\n");
i += remain_seg_payload_len;
}
// end with last segment
if (segment_flag & 0x8)
goto out;
} // end for loop
} else {
// Data start point on unsegmented cards
i = 8;
wrp = data[7] & 0x0F;
wrc = (data[7] & 0x70) >> 4;
bool hasWRC = (wrc > 0);
bool hasWRP = (wrp > wrc);
int wrp_len = (wrp - wrc);
int remain_seg_payload_len = (card.cardsize - 22 - wrp);
PrintAndLogEx(SUCCESS, "Unsegmented card - WRP: %02u, WRC: %02u, RD: %01u",
wrp,
wrc,
(data[7] & 0x80) >> 7
);
if (hasWRC) {
PrintAndLogEx(SUCCESS, "WRC protected area: (I %d | WRC %d)", i, wrc);
PrintAndLogEx(NORMAL, "\nrow | data");
PrintAndLogEx(NORMAL, "-----+------------------------------------------------");
print_hex_break(data + i, wrc, 16);
PrintAndLogEx(NORMAL, "-----+------------------------------------------------\n");
i += wrc;
}
if (hasWRP) {
PrintAndLogEx(SUCCESS, "Remaining write protected area: (I %d | WRC %d | WRP %d | WRP_LEN %d)", i, wrc, wrp, wrp_len);
PrintAndLogEx(NORMAL, "\nrow | data");
PrintAndLogEx(NORMAL, "-----+------------------------------------------------");
print_hex_break(data + i, wrp_len, 16);
PrintAndLogEx(NORMAL, "-----+------------------------------------------------\n");
i += wrp_len;
// Q: does this one work?
// A: Only if KGH/BGH is used with BCD encoded card number. Maybe this will show just garbage
if (wrp_len == 8) {
PrintAndLogEx(SUCCESS, "Card ID: " _YELLOW_("%2X%02X%02X"),
data[i - 4],
data[i - 3],
data[i - 2]
);
}
}
if (remain_seg_payload_len > 0) {
PrintAndLogEx(SUCCESS, "Remaining segment payload: (I %d | Remain LEN %d)", i, remain_seg_payload_len);
PrintAndLogEx(NORMAL, "\nrow | data");
PrintAndLogEx(NORMAL, "-----+------------------------------------------------");
print_hex_break(data + i, remain_seg_payload_len, 16);
PrintAndLogEx(NORMAL, "-----+------------------------------------------------\n");
}
}
out:
free(data);
return PM3_SUCCESS;
}
// params:
// offset in data memory
// number of bytes to read
static int CmdLegicRdbl(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "hf legic rdbl",
"Read data from a LEGIC Prime tag",
"hf legic rdbl -o 0 -l 16 -> read 16 bytes from offset 0 (system header)\n"
"hf legic rdbl -o 0 -l 4 --iv 55 -> read 4 bytes from offset 0\n"
"hf legic rdbl -o 0 -l 256 --iv 55 -> read 256 bytes from offset 0");
void *argtable[] = {
arg_param_begin,
arg_int0("o", "offset", "<dec>", "offset in data array to start download from"),
arg_int0("l", "length", "<dec>", "number of bytes to read"),
arg_str0(NULL, "iv", "<hex>", "Initialization vector to use. Must be odd and 7bits max"),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, false);
int offset = arg_get_int_def(ctx, 1, 0);
int len = arg_get_int_def(ctx, 2, 16);
int iv_len = 0;
uint8_t iv[1] = {0x01};
CLIGetHexWithReturn(ctx, 3, iv, &iv_len);
CLIParserFree(ctx);
// sanity checks
if (len + offset >= LEGIC_PRIME_MIM1024) {
PrintAndLogEx(WARNING, "Out-of-bounds, Cardsize = %d, [offset+len = %d ]", LEGIC_PRIME_MIM1024, len + offset);
return PM3_EOUTOFBOUND;
}
PrintAndLogEx(SUCCESS, "Reading %d bytes, from offset %d", len, offset);
// allocate receiver buffer
uint8_t *data = calloc(len, sizeof(uint8_t));
if (!data) {
PrintAndLogEx(WARNING, "Cannot allocate memory");
return PM3_EMALLOC;
}
uint16_t datalen = 0;
int status = legic_read_mem(offset, len, iv[0], data, &datalen);
if (status == PM3_SUCCESS) {
PrintAndLogEx(INFO, "## | 0 1 2 3 4 5 6 7 8 9 A B C D E F | ascii");
PrintAndLogEx(INFO, "---+-------------------------------------------------+-----------------");
print_hex_break(data, datalen, 16);
}
free(data);
return status;
}
static int CmdLegicSim(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "hf legic sim",
"Simulates a LEGIC Prime tag.\n"
"Following types supported (MIM22, MIM256, MIM1024)",
"hf legic sim --22\n"
);
void *argtable[] = {
arg_param_begin,
arg_lit0(NULL, "22", "LEGIC Prime MIM22"),
arg_lit0(NULL, "256", "LEGIC Prime MIM256 (def)"),
arg_lit0(NULL, "1024", "LEGIC Prime MIM1024"),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, true);
bool m1 = arg_get_lit(ctx, 1);
bool m2 = arg_get_lit(ctx, 2);
bool m3 = arg_get_lit(ctx, 3);
CLIParserFree(ctx);
// validations
if (m1 + m2 + m3 > 1) {
PrintAndLogEx(WARNING, "Only specify one LEGIC Prime Type");
return PM3_EINVARG;
} else if (m1 + m2 + m3 == 0) {
m2 = true;
}
struct {
uint8_t tagtype;
bool send_reply;
} PACKED payload;
payload.send_reply = true;
if (m1)
payload.tagtype = 0;
else if (m2)
payload.tagtype = 1;
else if (m3)
payload.tagtype = 2;
clearCommandBuffer();
SendCommandNG(CMD_HF_LEGIC_SIMULATE, (uint8_t *)&payload, sizeof(payload));
PacketResponseNG resp;
PrintAndLogEx(INFO, "Press pm3-button to abort simulation");
bool keypress = kbd_enter_pressed();
while (keypress == false) {
keypress = kbd_enter_pressed();
if (WaitForResponseTimeout(CMD_HF_LEGIC_SIMULATE, &resp, 1500)) {
break;
}
}
if (keypress)
SendCommandNG(CMD_BREAK_LOOP, NULL, 0);
PrintAndLogEx(INFO, "Done");
return PM3_SUCCESS;
}
static int CmdLegicWrbl(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "hf legic wrbl",
"Write data to a LEGIC Prime tag. It autodetects tagsize to ensure proper write",
"hf legic wrbl -o 0 -d 11223344 -> Write 0x11223344 starting from offset 0)\n"
"hf legic wrbl -o 10 -d DEADBEEF -> Write 0xdeadbeef starting from offset 10");
void *argtable[] = {
arg_param_begin,
arg_int1("o", "offset", "<dec>", "offset in data array to start writing"),
arg_str1("d", "data", "<hex>", "data to write"),
arg_lit0(NULL, "danger", "Auto-confirm dangerous operations"),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, false);
int offset = arg_get_int_def(ctx, 1, 0);
int dlen = 0;
uint8_t data[LEGIC_PRIME_MIM1024] = {0};
CLIGetHexWithReturn(ctx, 2, data, &dlen);
bool autoconfirm = arg_get_lit(ctx, 3);
CLIParserFree(ctx);
// OUT-OF-BOUNDS checks
// UID 4+1 bytes can't be written to.
if (offset < 5) {
PrintAndLogEx(WARNING, "Out-of-bounds, bytes 0-1-2-3-4 can't be written to. Offset = %d", offset);
return PM3_EOUTOFBOUND;
}
// tagtype
legic_card_select_t card;
if (legic_get_type(&card) != PM3_SUCCESS) {
PrintAndLogEx(WARNING, "Failed to identify tagtype");
return PM3_ESOFT;
}
legic_print_type(card.cardsize, 0);
if (dlen + offset > card.cardsize) {
PrintAndLogEx(WARNING, "Out-of-bounds, Cardsize = %d, [offset+len = %d ]", card.cardsize, dlen + offset);
return PM3_EOUTOFBOUND;
}
if ((offset == 5 || offset == 6) && (! autoconfirm)) {
PrintAndLogEx(INFO, "############# DANGER ################");
PrintAndLogEx(WARNING, "# changing the DCF is irreversible #");
PrintAndLogEx(INFO, "#####################################");
const char *confirm = "Do you really want to continue? y(es)/n(o) : ";
bool overwrite = false;
char *answer = pm3line_read(confirm);
overwrite = (answer[0] == 'y' || answer[0] == 'Y');
pm3line_free(answer);
if (overwrite == false) {
PrintAndLogEx(WARNING, "command cancelled");
return PM3_EOPABORTED;
}
}
uint32_t IV = 0x55;
legic_chk_iv(&IV);
PrintAndLogEx(SUCCESS, "Writing to tag to offset %i", offset);
legic_packet_t *payload = calloc(1, sizeof(legic_packet_t) + dlen);
payload->offset = (offset & 0xFFFF);
payload->iv = (IV & 0x7F);
payload->len = dlen;
memcpy(payload->data, data, dlen);
PacketResponseNG resp;
clearCommandBuffer();
SendCommandNG(CMD_HF_LEGIC_WRITER, (uint8_t *)payload, sizeof(legic_packet_t) + dlen);
free(payload);
uint8_t timeout = 0;
while (WaitForResponseTimeout(CMD_HF_LEGIC_WRITER, &resp, 2000) == false) {
++timeout;
PrintAndLogEx(NORMAL, "." NOLF);
if (timeout > 10) {
PrintAndLogEx(WARNING, "\ncommand execution time out");
return PM3_ETIMEOUT;
}
}
PrintAndLogEx(NORMAL, "");
if (resp.status != PM3_SUCCESS) {
PrintAndLogEx(WARNING, "Failed writing tag");
return PM3_ERFTRANS;
}
return PM3_SUCCESS;
}
static int CmdLegicCalcCrc(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "hf legic crc",
"Calculates the legic crc8/crc16 on the given data",
"hf legic crc -d deadbeef1122\n"
"hf legic crc -d deadbeef1122 --mcc 9A -t 16 -> CRC Type 16");
void *argtable[] = {
arg_param_begin,
arg_str1("d", "data", "<hex>", "bytes to calculate crc over"),
arg_str0(NULL, "mcc", "<hex>", "MCC hex byte (UID CRC)"),
arg_int0("t", "type", "<dec>", "CRC Type (default: 8)"),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, false);
int data_len = 0;
uint8_t data[4096] = {0};
CLIGetHexWithReturn(ctx, 1, data, &data_len);
int mcc_len = 0;
uint8_t mcc[1] = {0}; // formerly uidcrc
CLIGetHexWithReturn(ctx, 2, mcc, &mcc_len);
int type = arg_get_int_def(ctx, 3, 0);
CLIParserFree(ctx);
switch (type) {
case 16:
init_table(CRC_LEGIC);
PrintAndLogEx(SUCCESS, "Legic crc16: %X", crc16_legic(data, data_len, mcc[0]));
break;
default:
PrintAndLogEx(SUCCESS, "Legic crc8: %X", CRC8Legic(data, data_len));
break;
}
return PM3_SUCCESS;
}
int legic_read_mem(uint32_t offset, uint32_t len, uint32_t iv, uint8_t *out, uint16_t *outlen) {
legic_chk_iv(&iv);
legic_packet_t *payload = calloc(1, sizeof(legic_packet_t));
payload->offset = (offset & 0xFFFF);
payload->iv = iv;
payload->len = len;
clearCommandBuffer();
SendCommandNG(CMD_HF_LEGIC_READER, (uint8_t *)payload, sizeof(legic_packet_t));
free(payload);
PacketResponseNG resp;
uint8_t timeout = 0;
while (WaitForResponseTimeout(CMD_HF_LEGIC_READER, &resp, 1000) == false) {
++timeout;
PrintAndLogEx(NORMAL, "." NOLF);
if (timeout > 14) {
PrintAndLogEx(WARNING, "\ncommand execution time out");
return PM3_ETIMEOUT;
}
}
PrintAndLogEx(NORMAL, "");
*outlen = resp.data.asDwords[0];
if (resp.status != PM3_SUCCESS) {
PrintAndLogEx(WARNING, "Failed reading tag");
return PM3_ESOFT;
}
if (*outlen != len)
PrintAndLogEx(WARNING, "Fail, only managed to read %u bytes", *outlen);
// copy data from device
if (GetFromDevice(BIG_BUF_EML, out, *outlen, 0, NULL, 0, NULL, 2500, false) == false) {
PrintAndLogEx(WARNING, "Fail, transfer from device time-out");
return PM3_ETIMEOUT;
}
return PM3_SUCCESS;
}
int legic_print_type(uint32_t tagtype, uint8_t spaces) {
char spc[11] = " ";
spc[10] = 0x00;
char *spacer = spc + (10 - spaces);
if (tagtype == LEGIC_PRIME_MIM22)
PrintAndLogEx(SUCCESS, "%sTYPE: " _YELLOW_("MIM%d card (outdated)"), spacer, tagtype);
else if (tagtype == LEGIC_PRIME_MIM256)
PrintAndLogEx(SUCCESS, "%sTYPE: " _YELLOW_("MIM%d card (234 bytes)"), spacer, tagtype);
else if (tagtype == LEGIC_PRIME_MIM1024)
PrintAndLogEx(SUCCESS, "%sTYPE: " _YELLOW_("MIM%d card (1002 bytes)"), spacer, tagtype);
else
PrintAndLogEx(INFO, "%sTYPE: " _YELLOW_("Unknown %06x"), spacer, tagtype);
return PM3_SUCCESS;
}
int legic_get_type(legic_card_select_t *card) {
if (card == NULL)
return PM3_EINVARG;
clearCommandBuffer();
SendCommandNG(CMD_HF_LEGIC_INFO, NULL, 0);
PacketResponseNG resp;
if (WaitForResponseTimeout(CMD_HF_LEGIC_INFO, &resp, 1500) == false)
return PM3_ETIMEOUT;
if (resp.status != PM3_SUCCESS)
return PM3_ESOFT;
memcpy(card, resp.data.asBytes, sizeof(legic_card_select_t));
return PM3_SUCCESS;
}
void legic_chk_iv(uint32_t *iv) {
if ((*iv & 0x7F) != *iv) {
*iv &= 0x7F;
PrintAndLogEx(INFO, "Truncating IV to 7bits, %u", *iv);
}
// IV must be odd
if ((*iv & 1) == 0) {
*iv |= 0x01;
PrintAndLogEx(INFO, "LSB of IV must be SET %u", *iv);
}
}
void legic_seteml(uint8_t *src, uint32_t offset, uint32_t numofbytes) {
// fast push mode
g_conn.block_after_ACK = true;
for (size_t i = offset; i < numofbytes; i += LEGIC_PACKET_SIZE) {
size_t len = MIN((numofbytes - i), LEGIC_PACKET_SIZE);
if (len == numofbytes - i) {
// Disable fast mode on last packet
g_conn.block_after_ACK = false;
}
legic_packet_t *payload = calloc(1, sizeof(legic_packet_t) + len);
payload->offset = i;
payload->len = len;
memcpy(payload->data, src + i, len);
clearCommandBuffer();
SendCommandNG(CMD_HF_LEGIC_ESET, (uint8_t *)payload, sizeof(legic_packet_t) + len);
free(payload);
}
}
static int CmdLegicReader(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "hf legic reader",
"Read UID and type information from a LEGIC Prime tag",
"hf legic reader");
void *argtable[] = {
arg_param_begin,
arg_lit0("@", NULL, "optional - continuous reader mode"),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, true);
bool cm = arg_get_lit(ctx, 1);
CLIParserFree(ctx);
if (cm) {
PrintAndLogEx(INFO, "Press " _GREEN_("<Enter>") " to exit");
}
return readLegicUid(cm, true);
}
static int CmdLegicDump(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "hf legic dump",
"Read all memory from LEGIC Prime tags and saves to (bin/eml/json) dump file\n"
"It autodetects card type (MIM22, MIM256, MIM1024)",
"hf legic dump --> use UID as filename\n"
"hf legic dump -f myfile \n"
"hf legic dump --de --> use UID as filename and deobfuscate data");
void *argtable[] = {
arg_param_begin,
arg_str0("f", "file", "<fn>", "Dump filename"),
arg_lit0(NULL, "de", "deobfuscate dump data (xor with MCC)"),
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);
bool shall_deobsfuscate = arg_get_lit(ctx, 2);
CLIParserFree(ctx);
// tagtype
legic_card_select_t card;
if (legic_get_type(&card) != PM3_SUCCESS) {
PrintAndLogEx(WARNING, "Failed to identify tagtype");
return PM3_ESOFT;
}
uint16_t dumplen = card.cardsize;
legic_print_type(dumplen, 0);
PrintAndLogEx(SUCCESS, "Reading tag memory %d b...", dumplen);
legic_packet_t *payload = calloc(1, sizeof(legic_packet_t));
payload->offset = 0;
payload->iv = 0x55;
payload->len = dumplen;
clearCommandBuffer();
SendCommandNG(CMD_HF_LEGIC_READER, (uint8_t *)payload, sizeof(legic_packet_t));
free(payload);
PacketResponseNG resp;
uint8_t timeout = 0;
while (WaitForResponseTimeout(CMD_HF_LEGIC_READER, &resp, 2000) == false) {
++timeout;
PrintAndLogEx(NORMAL, "." NOLF);
if (timeout > 10) {
PrintAndLogEx(WARNING, "\ncommand execution time out");
return PM3_ETIMEOUT;
}
}
PrintAndLogEx(NORMAL, "");
if (resp.status != PM3_SUCCESS) {
PrintAndLogEx(WARNING, "Failed dumping tag data");
return PM3_ERFTRANS;
}
uint16_t readlen = resp.data.asDwords[0];
uint8_t *data = calloc(readlen, sizeof(uint8_t));
if (!data) {
PrintAndLogEx(WARNING, "Fail, cannot allocate memory");
return PM3_EMALLOC;
}
if (readlen != dumplen)
PrintAndLogEx(WARNING, "Fail, only managed to read 0x%02X bytes of 0x%02X", readlen, dumplen);
// copy data from device
if (GetFromDevice(BIG_BUF_EML, data, readlen, 0, NULL, 0, NULL, 2500, false) == false) {
PrintAndLogEx(WARNING, "Fail, transfer from device time-out");
free(data);
return PM3_ETIMEOUT;
}
if (shall_deobsfuscate) {
// Deobfuscate the whole dump. Unused data (after the last sector) will be MCC since
// 0x00 ^ MCC = MCC. Finding the end of used data is not part of this function.
if (legic_xor(data, dumplen) == false) {
PrintAndLogEx(FAILED, "Deobsfuscate failed, exiting...");
PrintAndLogEx(HINT, "Try running command without `--de` parameter");
free(data);
return PM3_EFAILED;
}
}
// user supplied filename?
if (fnlen < 1) {
PrintAndLogEx(INFO, "Using UID as filename");
strcat(filename, "hf-legic-");
FillFileNameByUID(filename, data, "-dump", 4);
}
pm3_save_dump(filename, data, readlen, jsfLegic, LEGIC_BLOCK_SIZE);
free(data);
return PM3_SUCCESS;
}
static int CmdLegicRestore(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "hf legic restore",
"Reads (bin/eml/json) file and it autodetects card type and verifies that the file has the same size\n"
"Then write the data back to card. All bytes except the first 7bytes [UID(4) MCC(1) DCF(2)]",
"hf legic restore -f myfile --> use user specified filename\n"
"hf legic restore -f myfile --ob --> use UID as filename and obfuscate data");
void *argtable[] = {
arg_param_begin,
arg_str1("f", "file", "<fn>", "Filename to restore"),
arg_lit0(NULL, "ob", "obfuscate dump data (xor with MCC)"),
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 shall_obsfuscate = arg_get_lit(ctx, 2);
CLIParserFree(ctx);
// tagtype
legic_card_select_t card;
if (legic_get_type(&card) != PM3_SUCCESS) {
PrintAndLogEx(WARNING, "Failed to identify tagtype");
return PM3_ESOFT;
}
legic_print_type(card.cardsize, 0);
// read dump file
uint8_t *dump = NULL;
size_t bytes_read = 0;
int res = pm3_load_dump(filename, (void **)&dump, &bytes_read, LEGIC_PRIME_MIM1024);
if (res != PM3_SUCCESS) {
return res;
}
// validation
if (card.cardsize != bytes_read) {
PrintAndLogEx(WARNING, "Fail, filesize and cardsize is not equal. [%u != %zu]", card.cardsize, bytes_read);
free(dump);
return PM3_EFILE;
}
if (shall_obsfuscate) {
if (legic_xor(dump, card.cardsize) == false) {
PrintAndLogEx(FAILED, "Obsfuscate failed, exiting...");
PrintAndLogEx(HINT, "Try running command without `--ob` parameter");
free(dump);
return PM3_EFAILED;
}
}
PrintAndLogEx(SUCCESS, "Restoring to card");
// fast push mode
g_conn.block_after_ACK = true;
// transfer to device
PacketResponseNG resp;
// 7 = skip UID bytes and MCC
for (size_t i = 7; i < bytes_read; i += LEGIC_PACKET_SIZE) {
size_t len = MIN((bytes_read - i), LEGIC_PACKET_SIZE);
if (len == bytes_read - i) {
// Disable fast mode on last packet
g_conn.block_after_ACK = false;
}
legic_packet_t *payload = calloc(1, sizeof(legic_packet_t) + len);
payload->offset = i;
payload->iv = 0x55;
payload->len = len;
memcpy(payload->data, dump + i, len);
clearCommandBuffer();
SendCommandNG(CMD_HF_LEGIC_WRITER, (uint8_t *)payload, sizeof(legic_packet_t) + len);
free(payload);
uint8_t timeout = 0;
while (WaitForResponseTimeout(CMD_HF_LEGIC_WRITER, &resp, 2000) == false) {
++timeout;
PrintAndLogEx(NORMAL, "." NOLF);
if (timeout > 10) {
PrintAndLogEx(WARNING, "\ncommand execution time out");
free(dump);
return PM3_ETIMEOUT;
}
}
PrintAndLogEx(NORMAL, "");
if (resp.status != PM3_SUCCESS) {
PrintAndLogEx(WARNING, "Failed writing tag");
free(dump);
return PM3_ERFTRANS;
}
PrintAndLogEx(SUCCESS, "Wrote chunk [offset %zu | len %zu | total %zu", i, len, i + len);
}
free(dump);
PrintAndLogEx(SUCCESS, "Done!");
return PM3_SUCCESS;
}
static int CmdLegicELoad(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "hf legic eload",
"Loads a LEGIC Prime dump file into emulator memory",
"hf legic eload -f myfile\n"
"hf legic eload -f myfile --obfuscate\n"
);
void *argtable[] = {
arg_param_begin,
arg_str1("f", "file", "<fn>", "Filename to load"),
arg_lit0(NULL, "obfuscate", "Obfuscate dump data (xor with MCC)"),
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 shall_obsfuscate = arg_get_lit(ctx, 2);
CLIParserFree(ctx);
// read dump file
uint8_t *dump = NULL;
size_t bytes_read = 0;
int res = pm3_load_dump(filename, (void **)&dump, &bytes_read, LEGIC_PRIME_MIM1024);
if (res != PM3_SUCCESS) {
return res;
}
// validation
if (bytes_read != LEGIC_PRIME_MIM22 &&
bytes_read != LEGIC_PRIME_MIM256 &&
bytes_read != LEGIC_PRIME_MIM1024) {
PrintAndLogEx(ERR, "File content error. Read %zu bytes", bytes_read);
free(dump);
return PM3_EFILE;
}
if (shall_obsfuscate) {
legic_xor(dump, bytes_read);
}
PrintAndLogEx(SUCCESS, "Uploading to emulator memory");
legic_seteml(dump, 0, bytes_read);
free(dump);
PrintAndLogEx(SUCCESS, "Done!");
return PM3_SUCCESS;
}
static int CmdLegicESave(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "hf legic esave",
"Saves a (bin/eml/json) dump file of emulator memory",
"hf legic esave --> uses UID as filename\n"
"hf legic esave -f myfile --22\n"
"hf legic esave -f myfile --22 --de\n"
);
void *argtable[] = {
arg_param_begin,
arg_str0("f", "file", "<fn>", "Filename to save"),
arg_lit0(NULL, "22", "LEGIC Prime MIM22"),
arg_lit0(NULL, "256", "LEGIC Prime MIM256 (def)"),
arg_lit0(NULL, "1024", "LEGIC Prime MIM1024"),
arg_lit0(NULL, "de", "De-obfuscate dump data (xor with MCC)"),
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);
bool m1 = arg_get_lit(ctx, 2);
bool m2 = arg_get_lit(ctx, 3);
bool m3 = arg_get_lit(ctx, 4);
bool shall_deobsfuscate = arg_get_lit(ctx, 5);
CLIParserFree(ctx);
// validations
if (m1 + m2 + m3 > 1) {
PrintAndLogEx(WARNING, "Only specify one LEGIC Prime Type");
return PM3_EINVARG;
} else if (m1 + m2 + m3 == 0) {
m2 = true;
}
size_t numofbytes = LEGIC_PRIME_MIM256;
if (m1)
numofbytes = LEGIC_PRIME_MIM22;
else if (m2)
numofbytes = LEGIC_PRIME_MIM256;
else if (m3)
numofbytes = LEGIC_PRIME_MIM1024;
// set up buffer
uint8_t *data = calloc(numofbytes, sizeof(uint8_t));
if (data == NULL) {
PrintAndLogEx(WARNING, "Fail, cannot allocate memory");
return PM3_EMALLOC;
}
// download emulator memory
PrintAndLogEx(SUCCESS, "Reading emulator memory...");
if (GetFromDevice(BIG_BUF_EML, data, numofbytes, 0, NULL, 0, NULL, 2500, false) == false) {
PrintAndLogEx(WARNING, "Fail, transfer from device time-out");
free(data);
return PM3_ETIMEOUT;
}
// user supplied filename?
if (fnlen < 1) {
PrintAndLogEx(INFO, "Using UID as filename");
strcat(filename, "hf-legic-");
FillFileNameByUID(filename, data, "-dump", 4);
}
if (shall_deobsfuscate) {
legic_xor(data, numofbytes);
}
pm3_save_dump(filename, data, numofbytes, jsfLegic, LEGIC_BLOCK_SIZE);
return PM3_SUCCESS;
}
static int CmdLegicEView(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "hf legic eview",
"It displays emulator memory",
"hf legic eview\n"
"hf legic eview --22\n"
);
void *argtable[] = {
arg_param_begin,
arg_lit0(NULL, "22", "LEGIC Prime MIM22"),
arg_lit0(NULL, "256", "LEGIC Prime MIM256 (def)"),
arg_lit0(NULL, "1024", "LEGIC Prime MIM1024"),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, true);
bool m1 = arg_get_lit(ctx, 1);
bool m2 = arg_get_lit(ctx, 2);
bool m3 = arg_get_lit(ctx, 3);
CLIParserFree(ctx);
// validations
if (m1 + m2 + m3 > 1) {
PrintAndLogEx(WARNING, "Only specify one LEGIC Prime Type");
return PM3_EINVARG;
} else if (m1 + m2 + m3 == 0) {
m2 = true;
}
size_t bytes = LEGIC_PRIME_MIM256;
if (m1)
bytes = LEGIC_PRIME_MIM22;
else if (m2)
bytes = LEGIC_PRIME_MIM256;
else if (m3)
bytes = LEGIC_PRIME_MIM1024;
uint8_t *dump = calloc(bytes, sizeof(uint8_t));
if (dump == NULL) {
PrintAndLogEx(WARNING, "Fail, cannot allocate memory");
return PM3_EMALLOC;
}
PrintAndLogEx(INFO, "downloading emulator memory");
if (GetFromDevice(BIG_BUF_EML, dump, bytes, 0, NULL, 0, NULL, 2500, false) == false) {
PrintAndLogEx(WARNING, "Fail, transfer from device time-out");
free(dump);
return PM3_ETIMEOUT;
}
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(INFO, "## | 0 1 2 3 4 5 6 7 8 9 A B C D E F | ascii");
PrintAndLogEx(INFO, "---+-------------------------------------------------+-----------------");
print_hex_break(dump, bytes, 16);
free(dump);
return PM3_SUCCESS;
}
static int CmdLegicWipe(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "hf legic wipe",
"Fills a LEGIC Prime tags memory with zeros. From byte7 and to the end\n"
"It autodetects card type",
"hf legic wipe");
void *argtable[] = {
arg_param_begin,
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, true);
CLIParserFree(ctx);
// tagtype
legic_card_select_t card;
if (legic_get_type(&card) != PM3_SUCCESS) {
PrintAndLogEx(WARNING, "Failed to identify tagtype");
return PM3_ESOFT;
}
// set up buffer
uint8_t *data = calloc(card.cardsize, sizeof(uint8_t));
if (!data) {
PrintAndLogEx(WARNING, "Fail, cannot allocate memory");
return PM3_EMALLOC;
}
legic_print_type(card.cardsize, 0);
PrintAndLogEx(SUCCESS, "Erasing");
// fast push mode
g_conn.block_after_ACK = true;
// transfer to device
PacketResponseNG resp;
for (size_t i = 7; i < card.cardsize; i += LEGIC_PACKET_SIZE) {
PrintAndLogEx(NORMAL, "." NOLF);
size_t len = MIN((card.cardsize - i), LEGIC_PACKET_SIZE);
if (len == card.cardsize - i) {
// Disable fast mode on last packet
g_conn.block_after_ACK = false;
}
legic_packet_t *payload = calloc(1, sizeof(legic_packet_t) + len);
payload->offset = i;
payload->iv = 0x55;
payload->len = len;
memcpy(payload->data, data + i, len);
clearCommandBuffer();
SendCommandNG(CMD_HF_LEGIC_WRITER, (uint8_t *)payload, sizeof(legic_packet_t) + len);
free(payload);
uint8_t timeout = 0;
while (WaitForResponseTimeout(CMD_HF_LEGIC_WRITER, &resp, 2000) == false) {
++timeout;
PrintAndLogEx(NORMAL, "." NOLF);
if (timeout > 10) {
PrintAndLogEx(WARNING, "\ncommand execution time out");
free(data);
return PM3_ETIMEOUT;
}
}
PrintAndLogEx(NORMAL, "");
if (resp.status != PM3_SUCCESS) {
PrintAndLogEx(WARNING, "failed writing tag");
free(data);
return PM3_ERFTRANS;
}
}
PrintAndLogEx(SUCCESS, "Done!\n");
free(data);
return PM3_SUCCESS;
}
static int CmdLegicList(const char *Cmd) {
return CmdTraceListAlias(Cmd, "hf legic", "legic");
}
static int CmdLegicView(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "hf legic view",
"Print a LEGIC Prime dump file (bin/eml/json)",
"hf legic view -f hf-legic-01020304-dump.bin"
);
void *argtable[] = {
arg_param_begin,
arg_str1("f", "file", "<fn>", "Filename of dump"),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, false);
int fnlen = 0;
char filename[FILE_PATH_SIZE];
CLIParamStrToBuf(arg_get_str(ctx, 1), (uint8_t *)filename, FILE_PATH_SIZE, &fnlen);
CLIParserFree(ctx);
// read dump file
uint8_t *dump = NULL;
size_t bytes_read = 0;
int res = pm3_load_dump(filename, (void **)&dump, &bytes_read, LEGIC_PRIME_MIM1024);
if (res != PM3_SUCCESS) {
return res;
}
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(INFO, "## | 0 1 2 3 4 5 6 7 8 9 A B C D E F | ascii");
PrintAndLogEx(INFO, "---+-------------------------------------------------+-----------------");
print_hex_break(dump, bytes_read, 16);
free(dump);
return PM3_SUCCESS;
}
static command_t CommandTable[] = {
{"-----------", CmdHelp, AlwaysAvailable, "--------------------- " _CYAN_("operations") " ---------------------"},
{"help", CmdHelp, AlwaysAvailable, "This help"},
{"dump", CmdLegicDump, IfPm3Legicrf, "Dump LEGIC Prime tag to binary file"},
{"info", CmdLegicInfo, IfPm3Legicrf, "Display deobfuscated and decoded LEGIC Prime tag data"},
{"list", CmdLegicList, AlwaysAvailable, "List LEGIC history"},
{"rdbl", CmdLegicRdbl, IfPm3Legicrf, "Read bytes from a LEGIC Prime tag"},
{"reader", CmdLegicReader, IfPm3Legicrf, "LEGIC Prime Reader UID and tag info"},
{"restore", CmdLegicRestore, IfPm3Legicrf, "Restore a dump file onto a LEGIC Prime tag"},
{"wipe", CmdLegicWipe, IfPm3Legicrf, "Wipe a LEGIC Prime tag"},
{"wrbl", CmdLegicWrbl, IfPm3Legicrf, "Write data to a LEGIC Prime tag"},
{"-----------", CmdHelp, AlwaysAvailable, "--------------------- " _CYAN_("simulation") " ---------------------"},
{"sim", CmdLegicSim, IfPm3Legicrf, "Start tag simulator"},
{"eload", CmdLegicELoad, IfPm3Legicrf, "Load binary dump to emulator memory"},
{"esave", CmdLegicESave, IfPm3Legicrf, "Save emulator memory to binary file"},
{"eview", CmdLegicEView, IfPm3Legicrf, "View emulator memory"},
{"-----------", CmdHelp, AlwaysAvailable, "--------------------- " _CYAN_("utils") " ---------------------"},
{"crc", CmdLegicCalcCrc, AlwaysAvailable, "Calculate Legic CRC over given bytes"},
{"view", CmdLegicView, AlwaysAvailable, "Display content from tag dump file"},
{NULL, NULL, NULL, NULL}
};
static int CmdHelp(const char *Cmd) {
(void)Cmd; // Cmd is not used so far
CmdsHelp(CommandTable);
return PM3_SUCCESS;
}
int CmdHFLegic(const char *Cmd) {
clearCommandBuffer();
return CmdsParse(CommandTable, Cmd);
}
int readLegicUid(bool loop, bool verbose) {
do {
legic_card_select_t card;
int resp = legic_get_type(&card);
if (loop) {
if (resp != PM3_SUCCESS) {
continue;
}
} else {
switch (resp) {
case PM3_EINVARG:
return PM3_EINVARG;
case PM3_ETIMEOUT:
if (verbose) PrintAndLogEx(WARNING, "command execution time out");
return PM3_ETIMEOUT;
case PM3_ESOFT:
if (verbose) PrintAndLogEx(WARNING, "legic card select failed");
return PM3_ESOFT;
default:
break;
}
}
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(SUCCESS, " MCD: " _GREEN_("%02X"), card.uid[0]);
PrintAndLogEx(SUCCESS, " MSN: " _GREEN_("%s"), sprint_hex(card.uid + 1, sizeof(card.uid) - 1));
legic_print_type(card.cardsize, 0);
} while (loop && kbd_enter_pressed() == false);
return PM3_SUCCESS;
}
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