proxmark3/armsrc/mifarecmd.c

981 lines
25 KiB
C

//-----------------------------------------------------------------------------
// Merlok - June 2011, 2012
// Gerhard de Koning Gans - May 2008
// Hagen Fritsch - June 2010
//
// 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
// the license.
//-----------------------------------------------------------------------------
// Routines to support ISO 14443 type A.
//-----------------------------------------------------------------------------
#include "mifarecmd.h"
#include "apps.h"
//-----------------------------------------------------------------------------
// Select, Authenticaate, Read an MIFARE tag.
// read block
//-----------------------------------------------------------------------------
void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
{
// params
uint8_t blockNo = arg0;
uint8_t keyType = arg1;
uint64_t ui64Key = 0;
ui64Key = bytes_to_num(datain, 6);
// variables
byte_t isOK = 0;
byte_t dataoutbuf[16];
uint8_t uid[8];
uint32_t cuid;
struct Crypto1State mpcs = {0, 0};
struct Crypto1State *pcs;
pcs = &mpcs;
// clear trace
iso14a_clear_trace();
// iso14a_set_tracing(false);
iso14443a_setup();
LED_A_ON();
LED_B_OFF();
LED_C_OFF();
while (true) {
if(!iso14443a_select_card(uid, NULL, &cuid)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
break;
};
if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Auth error");
break;
};
if(mifare_classic_readblock(pcs, cuid, blockNo, dataoutbuf)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Read block error");
break;
};
if(mifare_classic_halt(pcs, cuid)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
break;
};
isOK = 1;
break;
}
// ----------------------------- crypto1 destroy
crypto1_destroy(pcs);
if (MF_DBGLEVEL >= 2) DbpString("READ BLOCK FINISHED");
// add trace trailer
memset(uid, 0x44, 4);
LogTrace(uid, 4, 0, 0, TRUE);
// UsbCommand ack = {CMD_ACK, {isOK, 0, 0}};
// memcpy(ack.d.asBytes, dataoutbuf, 16);
LED_B_ON();
cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16);
// UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
LED_B_OFF();
// Thats it...
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LEDsoff();
// iso14a_set_tracing(TRUE);
}
//-----------------------------------------------------------------------------
// Select, Authenticaate, Read an MIFARE tag.
// read sector (data = 4 x 16 bytes = 64 bytes)
//-----------------------------------------------------------------------------
void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
{
// params
uint8_t sectorNo = arg0;
uint8_t keyType = arg1;
uint64_t ui64Key = 0;
ui64Key = bytes_to_num(datain, 6);
// variables
byte_t isOK = 0;
byte_t dataoutbuf[16 * 4];
uint8_t uid[8];
uint32_t cuid;
struct Crypto1State mpcs = {0, 0};
struct Crypto1State *pcs;
pcs = &mpcs;
// clear trace
iso14a_clear_trace();
// iso14a_set_tracing(false);
iso14443a_setup();
LED_A_ON();
LED_B_OFF();
LED_C_OFF();
while (true) {
if(!iso14443a_select_card(uid, NULL, &cuid)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
break;
};
if(mifare_classic_auth(pcs, cuid, sectorNo * 4, keyType, ui64Key, AUTH_FIRST)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Auth error");
break;
};
if(mifare_classic_readblock(pcs, cuid, sectorNo * 4 + 0, dataoutbuf + 16 * 0)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Read block 0 error");
break;
};
if(mifare_classic_readblock(pcs, cuid, sectorNo * 4 + 1, dataoutbuf + 16 * 1)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Read block 1 error");
break;
};
if(mifare_classic_readblock(pcs, cuid, sectorNo * 4 + 2, dataoutbuf + 16 * 2)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Read block 2 error");
break;
};
if(mifare_classic_readblock(pcs, cuid, sectorNo * 4 + 3, dataoutbuf + 16 * 3)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Read block 3 error");
break;
};
if(mifare_classic_halt(pcs, cuid)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
break;
};
isOK = 1;
break;
}
// ----------------------------- crypto1 destroy
crypto1_destroy(pcs);
if (MF_DBGLEVEL >= 2) DbpString("READ SECTOR FINISHED");
// add trace trailer
memset(uid, 0x44, 4);
LogTrace(uid, 4, 0, 0, TRUE);
// UsbCommand ack = {CMD_ACK, {isOK, 0, 0}};
// memcpy(ack.d.asBytes, dataoutbuf, 16 * 2);
LED_B_ON();
cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,32);
// UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
// SpinDelay(100);
// memcpy(ack.d.asBytes, dataoutbuf + 16 * 2, 16 * 2);
// UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
cmd_send(CMD_ACK,isOK,0,0,dataoutbuf+32, 32);
LED_B_OFF();
// Thats it...
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LEDsoff();
// iso14a_set_tracing(TRUE);
}
//-----------------------------------------------------------------------------
// Select, Authenticaate, Read an MIFARE tag.
// read block
//-----------------------------------------------------------------------------
void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
{
// params
uint8_t blockNo = arg0;
uint8_t keyType = arg1;
uint64_t ui64Key = 0;
byte_t blockdata[16];
ui64Key = bytes_to_num(datain, 6);
memcpy(blockdata, datain + 10, 16);
// variables
byte_t isOK = 0;
uint8_t uid[8];
uint32_t cuid;
struct Crypto1State mpcs = {0, 0};
struct Crypto1State *pcs;
pcs = &mpcs;
// clear trace
iso14a_clear_trace();
// iso14a_set_tracing(false);
iso14443a_setup();
LED_A_ON();
LED_B_OFF();
LED_C_OFF();
while (true) {
if(!iso14443a_select_card(uid, NULL, &cuid)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
break;
};
if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Auth error");
break;
};
if(mifare_classic_writeblock(pcs, cuid, blockNo, blockdata)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
break;
};
if(mifare_classic_halt(pcs, cuid)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
break;
};
isOK = 1;
break;
}
// ----------------------------- crypto1 destroy
crypto1_destroy(pcs);
if (MF_DBGLEVEL >= 2) DbpString("WRITE BLOCK FINISHED");
// add trace trailer
memset(uid, 0x44, 4);
LogTrace(uid, 4, 0, 0, TRUE);
// UsbCommand ack = {CMD_ACK, {isOK, 0, 0}};
LED_B_ON();
cmd_send(CMD_ACK,isOK,0,0,0,0);
// UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
LED_B_OFF();
// Thats it...
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LEDsoff();
// iso14a_set_tracing(TRUE);
}
// Return 1 if the nonce is invalid else return 0
int valid_nonce(uint32_t Nt, uint32_t NtEnc, uint32_t Ks1, byte_t * parity) {
return ((oddparity((Nt >> 24) & 0xFF) == ((parity[0]) ^ oddparity((NtEnc >> 24) & 0xFF) ^ BIT(Ks1,16))) & \
(oddparity((Nt >> 16) & 0xFF) == ((parity[1]) ^ oddparity((NtEnc >> 16) & 0xFF) ^ BIT(Ks1,8))) & \
(oddparity((Nt >> 8) & 0xFF) == ((parity[2]) ^ oddparity((NtEnc >> 8) & 0xFF) ^ BIT(Ks1,0)))) ? 1 : 0;
}
//-----------------------------------------------------------------------------
// MIFARE nested authentication.
//
//-----------------------------------------------------------------------------
void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain)
{
// params
uint8_t blockNo = arg0;
uint8_t keyType = arg1;
uint8_t targetBlockNo = arg2 & 0xff;
uint8_t targetKeyType = (arg2 >> 8) & 0xff;
uint64_t ui64Key = 0;
ui64Key = bytes_to_num(datain, 6);
// variables
int rtr, i, j, m, len;
int davg, dmin, dmax;
uint8_t uid[8];
uint32_t cuid, nt1, nt2, nttmp, nttest, par, ks1;
uint8_t par_array[4];
nestedVector nvector[NES_MAX_INFO + 1][11];
int nvectorcount[NES_MAX_INFO + 1];
int ncount = 0;
struct Crypto1State mpcs = {0, 0};
struct Crypto1State *pcs;
pcs = &mpcs;
uint8_t* receivedAnswer = mifare_get_bigbufptr();
//init
for (i = 0; i < NES_MAX_INFO + 1; i++) nvectorcount[i] = 11; // 11 - empty block;
// clear trace
iso14a_clear_trace();
iso14a_set_tracing(false);
iso14443a_setup();
LED_A_ON();
LED_B_ON();
LED_C_OFF();
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
SpinDelay(200);
davg = dmax = 0;
dmin = 2000;
// test nonce distance
for (rtr = 0; rtr < 10; rtr++) {
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
SpinDelay(100);
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
// Test if the action was cancelled
if(BUTTON_PRESS()) {
break;
}
if(!iso14443a_select_card(uid, NULL, &cuid)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
break;
};
if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Auth1 error");
break;
};
if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_NESTED, &nt2)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Auth2 error");
break;
};
nttmp = prng_successor(nt1, 500);
for (i = 501; i < 2000; i++) {
nttmp = prng_successor(nttmp, 1);
if (nttmp == nt2) break;
}
if (i != 2000) {
davg += i;
if (dmin > i) dmin = i;
if (dmax < i) dmax = i;
if (MF_DBGLEVEL >= 4) Dbprintf("r=%d nt1=%08x nt2=%08x distance=%d", rtr, nt1, nt2, i);
}
}
if (rtr == 0) return;
davg = davg / rtr;
if (MF_DBGLEVEL >= 3) Dbprintf("distance: min=%d max=%d avg=%d", dmin, dmax, davg);
LED_B_OFF();
// -------------------------------------------------------------------------------------------------
LED_C_ON();
// get crypted nonces for target sector
for (rtr = 0; rtr < NS_RETRIES_GETNONCE; rtr++) {
if (MF_DBGLEVEL >= 4) Dbprintf("------------------------------");
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
SpinDelay(100);
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
// Test if the action was cancelled
if(BUTTON_PRESS()) {
break;
}
if(!iso14443a_select_card(uid, NULL, &cuid)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
break;
};
if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Auth1 error");
break;
};
// nested authentication
len = mifare_sendcmd_shortex(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, &par);
if (len != 4) {
if (MF_DBGLEVEL >= 1) Dbprintf("Auth2 error len=%d", len);
break;
};
nt2 = bytes_to_num(receivedAnswer, 4);
if (MF_DBGLEVEL >= 4) Dbprintf("r=%d nt1=%08x nt2enc=%08x nt2par=%08x", rtr, nt1, nt2, par);
// Parity validity check
for (i = 0; i < 4; i++) {
par_array[i] = (oddparity(receivedAnswer[i]) != ((par & 0x08) >> 3));
par = par << 1;
}
ncount = 0;
nttest = prng_successor(nt1, dmin - NS_TOLERANCE);
for (m = dmin - NS_TOLERANCE + 1; m < dmax + NS_TOLERANCE; m++) {
nttest = prng_successor(nttest, 1);
ks1 = nt2 ^ nttest;
if (valid_nonce(nttest, nt2, ks1, par_array) && (ncount < 11)){
nvector[NES_MAX_INFO][ncount].nt = nttest;
nvector[NES_MAX_INFO][ncount].ks1 = ks1;
ncount++;
nvectorcount[NES_MAX_INFO] = ncount;
if (MF_DBGLEVEL >= 4) Dbprintf("valid m=%d ks1=%08x nttest=%08x", m, ks1, nttest);
}
}
// select vector with length less than got
if (nvectorcount[NES_MAX_INFO] != 0) {
m = NES_MAX_INFO;
for (i = 0; i < NES_MAX_INFO; i++)
if (nvectorcount[i] > 10) {
m = i;
break;
}
if (m == NES_MAX_INFO)
for (i = 0; i < NES_MAX_INFO; i++)
if (nvectorcount[NES_MAX_INFO] < nvectorcount[i]) {
m = i;
break;
}
if (m != NES_MAX_INFO) {
for (i = 0; i < nvectorcount[m]; i++) {
nvector[m][i] = nvector[NES_MAX_INFO][i];
}
nvectorcount[m] = nvectorcount[NES_MAX_INFO];
}
}
}
LED_C_OFF();
// ----------------------------- crypto1 destroy
crypto1_destroy(pcs);
// add trace trailer
memset(uid, 0x44, 4);
LogTrace(uid, 4, 0, 0, TRUE);
// UsbCommand ack = {CMD_ACK, {0, 0, 0}};
for (i = 0; i < NES_MAX_INFO; i++) {
if (nvectorcount[i] > 10) continue;
for (j = 0; j < nvectorcount[i]; j += 5) {
ncount = nvectorcount[i] - j;
if (ncount > 5) ncount = 5;
// ack.arg[0] = 0; // isEOF = 0
// ack.arg[1] = ncount;
// ack.arg[2] = targetBlockNo + (targetKeyType * 0x100);
// memset(ack.d.asBytes, 0x00, sizeof(ack.d.asBytes));
byte_t buf[48];
memset(buf, 0x00, sizeof(buf));
memcpy(buf, &cuid, 4);
for (m = 0; m < ncount; m++) {
memcpy(buf + 8 + m * 8 + 0, &nvector[i][m + j].nt, 4);
memcpy(buf + 8 + m * 8 + 4, &nvector[i][m + j].ks1, 4);
}
LED_B_ON();
// SpinDelay(100);
cmd_send(CMD_ACK,0,ncount,targetBlockNo + (targetKeyType * 0x100),buf,48);
// UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
LED_B_OFF();
}
}
// finalize list
// ack.arg[0] = 1; // isEOF = 1
// ack.arg[1] = 0;
// ack.arg[2] = 0;
// memset(ack.d.asBytes, 0x00, sizeof(ack.d.asBytes));
LED_B_ON();
// SpinDelay(300);
// UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
cmd_send(CMD_ACK,1,0,0,0,0);
LED_B_OFF();
if (MF_DBGLEVEL >= 4) DbpString("NESTED FINISHED");
// Thats it...
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LEDsoff();
iso14a_set_tracing(TRUE);
}
//-----------------------------------------------------------------------------
// MIFARE check keys. key count up to 8.
//
//-----------------------------------------------------------------------------
void MifareChkKeys(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
{
// params
uint8_t blockNo = arg0;
uint8_t keyType = arg1;
uint8_t keyCount = arg2;
uint64_t ui64Key = 0;
// variables
int i;
byte_t isOK = 0;
uint8_t uid[8];
uint32_t cuid;
struct Crypto1State mpcs = {0, 0};
struct Crypto1State *pcs;
pcs = &mpcs;
// clear debug level
int OLD_MF_DBGLEVEL = MF_DBGLEVEL;
MF_DBGLEVEL = MF_DBG_NONE;
// clear trace
iso14a_clear_trace();
iso14a_set_tracing(TRUE);
iso14443a_setup();
LED_A_ON();
LED_B_OFF();
LED_C_OFF();
SpinDelay(300);
for (i = 0; i < keyCount; i++) {
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
SpinDelay(100);
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
if(!iso14443a_select_card(uid, NULL, &cuid)) {
if (OLD_MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
break;
};
ui64Key = bytes_to_num(datain + i * 6, 6);
if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
continue;
};
isOK = 1;
break;
}
// ----------------------------- crypto1 destroy
crypto1_destroy(pcs);
// add trace trailer
memset(uid, 0x44, 4);
LogTrace(uid, 4, 0, 0, TRUE);
// UsbCommand ack = {CMD_ACK, {isOK, 0, 0}};
// if (isOK) memcpy(ack.d.asBytes, datain + i * 6, 6);
LED_B_ON();
cmd_send(CMD_ACK,isOK,0,0,datain + i * 6,6);
// UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
LED_B_OFF();
// Thats it...
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LEDsoff();
// restore debug level
MF_DBGLEVEL = OLD_MF_DBGLEVEL;
}
//-----------------------------------------------------------------------------
// MIFARE commands set debug level
//
//-----------------------------------------------------------------------------
void MifareSetDbgLvl(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
MF_DBGLEVEL = arg0;
Dbprintf("Debug level: %d", MF_DBGLEVEL);
}
//-----------------------------------------------------------------------------
// Work with emulator memory
//
//-----------------------------------------------------------------------------
void MifareEMemClr(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
emlClearMem();
}
void MifareEMemSet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
emlSetMem(datain, arg0, arg1); // data, block num, blocks count
}
void MifareEMemGet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
// UsbCommand ack = {CMD_ACK, {arg0, arg1, 0}};
byte_t buf[48];
emlGetMem(buf, arg0, arg1); // data, block num, blocks count
LED_B_ON();
cmd_send(CMD_ACK,arg0,arg1,0,buf,48);
// UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
LED_B_OFF();
}
//-----------------------------------------------------------------------------
// Load a card into the emulator memory
//
//-----------------------------------------------------------------------------
void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
int i;
uint8_t sectorNo = 0;
uint8_t keyType = arg1;
uint64_t ui64Key = 0;
uint32_t cuid;
struct Crypto1State mpcs = {0, 0};
struct Crypto1State *pcs;
pcs = &mpcs;
// variables
byte_t dataoutbuf[16];
byte_t dataoutbuf2[16];
uint8_t uid[8];
// clear trace
iso14a_clear_trace();
iso14a_set_tracing(false);
iso14443a_setup();
LED_A_ON();
LED_B_OFF();
LED_C_OFF();
while (true) {
if(!iso14443a_select_card(uid, NULL, &cuid)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
break;
};
for (i = 0; i < 16; i++) {
sectorNo = i;
ui64Key = emlGetKey(sectorNo, keyType);
if (!i){
if(mifare_classic_auth(pcs, cuid, sectorNo * 4, keyType, ui64Key, AUTH_FIRST)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Sector[%d]. Auth error", i);
break;
}
} else {
if(mifare_classic_auth(pcs, cuid, sectorNo * 4, keyType, ui64Key, AUTH_NESTED)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Sector[%d]. Auth nested error", i);
break;
}
}
if(mifare_classic_readblock(pcs, cuid, sectorNo * 4 + 0, dataoutbuf)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Read block 0 error");
break;
};
emlSetMem(dataoutbuf, sectorNo * 4 + 0, 1);
if(mifare_classic_readblock(pcs, cuid, sectorNo * 4 + 1, dataoutbuf)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Read block 1 error");
break;
};
emlSetMem(dataoutbuf, sectorNo * 4 + 1, 1);
if(mifare_classic_readblock(pcs, cuid, sectorNo * 4 + 2, dataoutbuf)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Read block 2 error");
break;
};
emlSetMem(dataoutbuf, sectorNo * 4 + 2, 1);
// get block 3 bytes 6-9
if(mifare_classic_readblock(pcs, cuid, sectorNo * 4 + 3, dataoutbuf)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Read block 3 error");
break;
};
emlGetMem(dataoutbuf2, sectorNo * 4 + 3, 1);
memcpy(&dataoutbuf2[6], &dataoutbuf[6], 4);
emlSetMem(dataoutbuf2, sectorNo * 4 + 3, 1);
}
if(mifare_classic_halt(pcs, cuid)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
break;
};
break;
}
// ----------------------------- crypto1 destroy
crypto1_destroy(pcs);
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LEDsoff();
if (MF_DBGLEVEL >= 2) DbpString("EMUL FILL SECTORS FINISHED");
// add trace trailer
memset(uid, 0x44, 4);
LogTrace(uid, 4, 0, 0, TRUE);
}
//-----------------------------------------------------------------------------
// MIFARE 1k emulator
//
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// Work with "magic Chinese" card (email him: ouyangweidaxian@live.cn)
//
//-----------------------------------------------------------------------------
void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
// params
uint8_t needWipe = arg0;
// bit 0 - need get UID
// bit 1 - need wupC
// bit 2 - need HALT after sequence
// bit 3 - need init FPGA and field before sequence
// bit 4 - need reset FPGA and LED
uint8_t workFlags = arg1;
uint8_t blockNo = arg2;
// card commands
uint8_t wupC1[] = { 0x40 };
uint8_t wupC2[] = { 0x43 };
uint8_t wipeC[] = { 0x41 };
// variables
byte_t isOK = 0;
uint8_t uid[8];
uint8_t d_block[18];
uint32_t cuid;
memset(uid, 0x00, 8);
uint8_t* receivedAnswer = mifare_get_bigbufptr();
if (workFlags & 0x08) {
// clear trace
iso14a_clear_trace();
iso14a_set_tracing(TRUE);
iso14443a_setup();
LED_A_ON();
LED_B_OFF();
LED_C_OFF();
SpinDelay(300);
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
SpinDelay(100);
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
}
while (true) {
// get UID from chip
if (workFlags & 0x01) {
if(!iso14443a_select_card(uid, NULL, &cuid)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
break;
};
if(mifare_classic_halt(NULL, cuid)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
break;
};
};
// reset chip
if (needWipe){
ReaderTransmitBitsPar(wupC1,7,0);
if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) {
if (MF_DBGLEVEL >= 1) Dbprintf("wupC1 error");
break;
};
ReaderTransmit(wipeC, sizeof(wipeC));
if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) {
if (MF_DBGLEVEL >= 1) Dbprintf("wipeC error");
break;
};
if(mifare_classic_halt(NULL, cuid)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
break;
};
};
// write block
if (workFlags & 0x02) {
ReaderTransmitBitsPar(wupC1,7,0);
if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) {
if (MF_DBGLEVEL >= 1) Dbprintf("wupC1 error");
break;
};
ReaderTransmit(wupC2, sizeof(wupC2));
if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) {
if (MF_DBGLEVEL >= 1) Dbprintf("wupC2 error");
break;
};
}
if ((mifare_sendcmd_short(NULL, 0, 0xA0, blockNo, receivedAnswer) != 1) || (receivedAnswer[0] != 0x0a)) {
if (MF_DBGLEVEL >= 1) Dbprintf("write block send command error");
break;
};
memcpy(d_block, datain, 16);
AppendCrc14443a(d_block, 16);
ReaderTransmit(d_block, sizeof(d_block));
if ((ReaderReceive(receivedAnswer) != 1) || (receivedAnswer[0] != 0x0a)) {
if (MF_DBGLEVEL >= 1) Dbprintf("write block send data error");
break;
};
if (workFlags & 0x04) {
if (mifare_classic_halt(NULL, cuid)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
break;
};
}
isOK = 1;
break;
}
// UsbCommand ack = {CMD_ACK, {isOK, 0, 0}};
// if (isOK) memcpy(ack.d.asBytes, uid, 4);
// add trace trailer
/**
* Removed by Martin, the uid is overwritten with 0x44,
* which can 't be intended.
*
* memset(uid, 0x44, 4);
* LogTrace(uid, 4, 0, 0, TRUE);
**/
LED_B_ON();
cmd_send(CMD_ACK,isOK,0,0,uid,4);
// UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
LED_B_OFF();
if ((workFlags & 0x10) || (!isOK)) {
// Thats it...
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LEDsoff();
}
}
void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
// params
// bit 1 - need wupC
// bit 2 - need HALT after sequence
// bit 3 - need init FPGA and field before sequence
// bit 4 - need reset FPGA and LED
uint8_t workFlags = arg0;
uint8_t blockNo = arg2;
// card commands
uint8_t wupC1[] = { 0x40 };
uint8_t wupC2[] = { 0x43 };
// variables
byte_t isOK = 0;
uint8_t data[18];
uint32_t cuid = 0;
memset(data, 0x00, 18);
uint8_t* receivedAnswer = mifare_get_bigbufptr();
if (workFlags & 0x08) {
// clear trace
iso14a_clear_trace();
iso14a_set_tracing(TRUE);
iso14443a_setup();
LED_A_ON();
LED_B_OFF();
LED_C_OFF();
SpinDelay(300);
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
SpinDelay(100);
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
}
while (true) {
if (workFlags & 0x02) {
ReaderTransmitBitsPar(wupC1,7,0);
if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) {
if (MF_DBGLEVEL >= 1) Dbprintf("wupC1 error");
break;
};
ReaderTransmit(wupC2, sizeof(wupC2));
if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) {
if (MF_DBGLEVEL >= 1) Dbprintf("wupC2 error");
break;
};
}
// read block
if ((mifare_sendcmd_short(NULL, 0, 0x30, blockNo, receivedAnswer) != 18)) {
if (MF_DBGLEVEL >= 1) Dbprintf("read block send command error");
break;
};
memcpy(data, receivedAnswer, 18);
if (workFlags & 0x04) {
if (mifare_classic_halt(NULL, cuid)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
break;
};
}
isOK = 1;
break;
}
// UsbCommand ack = {CMD_ACK, {isOK, 0, 0}};
// if (isOK) memcpy(ack.d.asBytes, data, 18);
// add trace trailer
/*
* Removed by Martin, this piece of overwrites the 'data' variable
* which is sent two lines down, and is obviously not correct.
*
* memset(data, 0x44, 4);
* LogTrace(data, 4, 0, 0, TRUE);
*/
LED_B_ON();
cmd_send(CMD_ACK,isOK,0,0,data,18);
// UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
LED_B_OFF();
if ((workFlags & 0x10) || (!isOK)) {
// Thats it...
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LEDsoff();
}
}