#include "string.h"
#include "common.h"
#include "cmd.h"
+#include "iso14443a.h"
// Needed for CRC in emulation mode;
// same construction as in ISO 14443;
// different initial value (CRC_ICLASS)
#include "iso14443crc.h"
#include "iso15693tools.h"
+#include "protocols.h"
+#include "optimized_cipher.h"
+#include "usb_cdc.h" // for usb_poll_validate_length
static int timeout = 4096;
// The command (reader -> tag) that we're receiving.
// The length of a received command will in most cases be no more than 18 bytes.
// So 32 should be enough!
- uint8_t *readerToTagCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET);
+ #define ICLASS_BUFFER_SIZE 32
+ uint8_t readerToTagCmd[ICLASS_BUFFER_SIZE];
// The response (tag -> reader) that we're receiving.
- uint8_t *tagToReaderResponse = (((uint8_t *)BigBuf) + RECV_RESP_OFFSET);
+ uint8_t tagToReaderResponse[ICLASS_BUFFER_SIZE];
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
- // reset traceLen to 0
- iso14a_set_tracing(TRUE);
- iso14a_clear_trace();
+ // free all BigBuf memory
+ BigBuf_free();
+ // The DMA buffer, used to stream samples from the FPGA
+ uint8_t *dmaBuf = BigBuf_malloc(DMA_BUFFER_SIZE);
+
+ set_tracing(TRUE);
+ clear_trace();
iso14a_set_trigger(FALSE);
- // The DMA buffer, used to stream samples from the FPGA
- int8_t *dmaBuf = ((int8_t *)BigBuf) + DMA_BUFFER_OFFSET;
- int lastRxCounter;
- int8_t *upTo;
+ int lastRxCounter;
+ uint8_t *upTo;
int smpl;
int maxBehindBy = 0;
(DMA_BUFFER_SIZE-1);
if(behindBy > maxBehindBy) {
maxBehindBy = behindBy;
- if(behindBy > 400) {
+ if(behindBy > (9 * DMA_BUFFER_SIZE / 10)) {
Dbprintf("blew circular buffer! behindBy=0x%x", behindBy);
goto done;
}
DbpString("COMMAND FINISHED");
Dbprintf("%x %x %x", maxBehindBy, Uart.state, Uart.byteCnt);
- Dbprintf("%x %x %x", Uart.byteCntMax, traceLen, (int)Uart.output[0]);
+ Dbprintf("%x %x %x", Uart.byteCntMax, BigBuf_get_traceLen(), (int)Uart.output[0]);
done:
AT91C_BASE_PDC_SSC->PDC_PTCR = AT91C_PDC_RXTDIS;
Dbprintf("%x %x %x", maxBehindBy, Uart.state, Uart.byteCnt);
- Dbprintf("%x %x %x", Uart.byteCntMax, traceLen, (int)Uart.output[0]);
+ Dbprintf("%x %x %x", Uart.byteCntMax, BigBuf_get_traceLen(), (int)Uart.output[0]);
LED_A_OFF();
LED_B_OFF();
LED_C_OFF();
* - A 1-bit input to the FPGA becomes 8 pulses on 423.5kHz (fc/32) (18.88us).
* - A 0-bit inptu to the FPGA becomes an unmodulated time of 18.88us
*
- * In thist mode the SOF can be written as 00011101 = 0x1D
+ * In this mode the SOF can be written as 00011101 = 0x1D
* The EOF can be written as 10111000 = 0xb8
* A logic 1 is 01
* A logic 0 is 10
// Convert from last byte pos to length
ToSendMax++;
}
+#define MODE_SIM_CSN 0
+#define MODE_EXIT_AFTER_MAC 1
+#define MODE_FULLSIM 2
-int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader_mac_buf);
+int doIClassSimulation(int simulationMode, uint8_t *reader_mac_buf);
/**
* @brief SimulateIClass simulates an iClass card.
* @param arg0 type of simulation
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
// Enable and clear the trace
- iso14a_set_tracing(TRUE);
- iso14a_clear_trace();
+ set_tracing(TRUE);
+ clear_trace();
+ //Use the emulator memory for SIM
+ uint8_t *emulator = BigBuf_get_EM_addr();
- uint8_t csn_crc[] = { 0x03, 0x1f, 0xec, 0x8a, 0xf7, 0xff, 0x12, 0xe0, 0x00, 0x00 };
if(simType == 0) {
// Use the CSN from commandline
- memcpy(csn_crc, datain, 8);
- doIClassSimulation(csn_crc,0,NULL);
+ memcpy(emulator, datain, 8);
+ doIClassSimulation(MODE_SIM_CSN,NULL);
}else if(simType == 1)
{
- doIClassSimulation(csn_crc,0,NULL);
+ //Default CSN
+ uint8_t csn_crc[] = { 0x03, 0x1f, 0xec, 0x8a, 0xf7, 0xff, 0x12, 0xe0, 0x00, 0x00 };
+ // Use the CSN from commandline
+ memcpy(emulator, csn_crc, 8);
+ doIClassSimulation(MODE_SIM_CSN,NULL);
}
else if(simType == 2)
{
{
// The usb data is 512 bytes, fitting 65 8-byte CSNs in there.
- memcpy(csn_crc, datain+(i*8), 8);
- if(doIClassSimulation(csn_crc,1,mac_responses+i*8))
+ memcpy(emulator, datain+(i*8), 8);
+ if(doIClassSimulation(MODE_EXIT_AFTER_MAC,mac_responses+i*8))
{
cmd_send(CMD_ACK,CMD_SIMULATE_TAG_ICLASS,i,0,mac_responses,i*8);
return; // Button pressed
}
cmd_send(CMD_ACK,CMD_SIMULATE_TAG_ICLASS,i,0,mac_responses,i*8);
+ }else if(simType == 3){
+ //This is 'full sim' mode, where we use the emulator storage for data.
+ doIClassSimulation(MODE_FULLSIM, NULL);
}
else{
// We may want a mode here where we hardcode the csns to use (from proxclone).
Dbprintf("Done...");
}
+void AppendCrc(uint8_t* data, int len)
+{
+ ComputeCrc14443(CRC_ICLASS,data,len,data+len,data+len+1);
+}
+
/**
* @brief Does the actual simulation
* @param csn - csn to use
* @param breakAfterMacReceived if true, returns after reader MAC has been received.
*/
-int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader_mac_buf)
+int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf)
{
-
+ // free eventually allocated BigBuf memory
+ BigBuf_free_keep_EM();
+
+ State cipher_state;
+// State cipher_state_reserve;
+ uint8_t *csn = BigBuf_get_EM_addr();
+ uint8_t *emulator = csn;
+ uint8_t sof_data[] = { 0x0F} ;
// CSN followed by two CRC bytes
- uint8_t response1[] = { 0x0F} ;
- uint8_t response2[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
- uint8_t response3[] = { 0,0,0,0,0,0,0,0,0,0};
- memcpy(response3,csn,sizeof(response3));
+ uint8_t anticoll_data[10] = { 0 };
+ uint8_t csn_data[10] = { 0 };
+ memcpy(csn_data,csn,sizeof(csn_data));
Dbprintf("Simulating CSN %02x%02x%02x%02x%02x%02x%02x%02x",csn[0],csn[1],csn[2],csn[3],csn[4],csn[5],csn[6],csn[7]);
- // e-Purse
- uint8_t response4[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
// Construct anticollision-CSN
- rotateCSN(response3,response2);
+ rotateCSN(csn_data,anticoll_data);
// Compute CRC on both CSNs
- ComputeCrc14443(CRC_ICLASS, response2, 8, &response2[8], &response2[9]);
- ComputeCrc14443(CRC_ICLASS, response3, 8, &response3[8], &response3[9]);
+ ComputeCrc14443(CRC_ICLASS, anticoll_data, 8, &anticoll_data[8], &anticoll_data[9]);
+ ComputeCrc14443(CRC_ICLASS, csn_data, 8, &csn_data[8], &csn_data[9]);
+
+ uint8_t diversified_key[8] = { 0 };
+ // e-Purse
+ uint8_t card_challenge_data[8] = { 0x00 };
+ if(simulationMode == MODE_FULLSIM)
+ {
+ //The diversified key should be stored on block 3
+ //Get the diversified key from emulator memory
+ memcpy(diversified_key, emulator+(8*3),8);
+
+ //Card challenge, a.k.a e-purse is on block 2
+ memcpy(card_challenge_data,emulator + (8 * 2) , 8);
+ //Precalculate the cipher state, feeding it the CC
+ cipher_state = opt_doTagMAC_1(card_challenge_data,diversified_key);
+
+ }
int exitLoop = 0;
// Reader 0a
// Tag CSN
uint8_t *modulated_response;
- int modulated_response_size;
+ int modulated_response_size = 0;
uint8_t* trace_data = NULL;
int trace_data_size = 0;
- //uint8_t sof = 0x0f;
+
// Respond SOF -- takes 1 bytes
- uint8_t *resp1 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET);
- int resp1Len;
+ uint8_t *resp_sof = BigBuf_malloc(2);
+ int resp_sof_Len;
// Anticollision CSN (rotated CSN)
// 22: Takes 2 bytes for SOF/EOF and 10 * 2 = 20 bytes (2 bytes/byte)
- uint8_t *resp2 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + 2);
- int resp2Len;
+ uint8_t *resp_anticoll = BigBuf_malloc(28);
+ int resp_anticoll_len;
// CSN
// 22: Takes 2 bytes for SOF/EOF and 10 * 2 = 20 bytes (2 bytes/byte)
- uint8_t *resp3 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + 30);
- int resp3Len;
+ uint8_t *resp_csn = BigBuf_malloc(30);
+ int resp_csn_len;
// e-Purse
- // 18: Takes 2 bytes for SOF/EOF and 8 * 2 = 16 bytes (2 bytes/byte)
- uint8_t *resp4 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + 60);
- int resp4Len;
+ // 18: Takes 2 bytes for SOF/EOF and 8 * 2 = 16 bytes (2 bytes/bit)
+ uint8_t *resp_cc = BigBuf_malloc(20);
+ int resp_cc_len;
- // + 1720..
- uint8_t *receivedCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET);
- memset(receivedCmd, 0x44, MAX_FRAME_SIZE);
+ uint8_t *receivedCmd = BigBuf_malloc(MAX_FRAME_SIZE);
int len;
// Prepare card messages
// First card answer: SOF
CodeIClassTagSOF();
- memcpy(resp1, ToSend, ToSendMax); resp1Len = ToSendMax;
+ memcpy(resp_sof, ToSend, ToSendMax); resp_sof_Len = ToSendMax;
// Anticollision CSN
- CodeIClassTagAnswer(response2, sizeof(response2));
- memcpy(resp2, ToSend, ToSendMax); resp2Len = ToSendMax;
+ CodeIClassTagAnswer(anticoll_data, sizeof(anticoll_data));
+ memcpy(resp_anticoll, ToSend, ToSendMax); resp_anticoll_len = ToSendMax;
// CSN
- CodeIClassTagAnswer(response3, sizeof(response3));
- memcpy(resp3, ToSend, ToSendMax); resp3Len = ToSendMax;
+ CodeIClassTagAnswer(csn_data, sizeof(csn_data));
+ memcpy(resp_csn, ToSend, ToSendMax); resp_csn_len = ToSendMax;
// e-Purse
- CodeIClassTagAnswer(response4, sizeof(response4));
- memcpy(resp4, ToSend, ToSendMax); resp4Len = ToSendMax;
+ CodeIClassTagAnswer(card_challenge_data, sizeof(card_challenge_data));
+ memcpy(resp_cc, ToSend, ToSendMax); resp_cc_len = ToSendMax;
+ //This is used for responding to READ-block commands or other data which is dynamically generated
+ //First the 'trace'-data, not encoded for FPGA
+ uint8_t *data_generic_trace = BigBuf_malloc(8 + 2);//8 bytes data + 2byte CRC is max tag answer
+ //Then storage for the modulated data
+ //Each bit is doubled when modulated for FPGA, and we also have SOF and EOF (2 bytes)
+ uint8_t *data_response = BigBuf_malloc( (8+2) * 2 + 2);
// Start from off (no field generated)
//FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LED_A_ON();
bool buttonPressed = false;
-
+ uint8_t response_delay = 1;
while(!exitLoop) {
-
+ response_delay = 1;
LED_B_OFF();
//Signal tracer
// Can be used to get a trigger for an oscilloscope..
LED_C_ON();
// Okay, look at the command now.
- if(receivedCmd[0] == 0x0a ) {
+ if(receivedCmd[0] == ICLASS_CMD_ACTALL ) {
// Reader in anticollission phase
- modulated_response = resp1; modulated_response_size = resp1Len; //order = 1;
- trace_data = response1;
- trace_data_size = sizeof(response1);
- } else if(receivedCmd[0] == 0x0c) {
+ modulated_response = resp_sof; modulated_response_size = resp_sof_Len; //order = 1;
+ trace_data = sof_data;
+ trace_data_size = sizeof(sof_data);
+ } else if(receivedCmd[0] == ICLASS_CMD_READ_OR_IDENTIFY && len == 1) {
// Reader asks for anticollission CSN
- modulated_response = resp2; modulated_response_size = resp2Len; //order = 2;
- trace_data = response2;
- trace_data_size = sizeof(response2);
+ modulated_response = resp_anticoll; modulated_response_size = resp_anticoll_len; //order = 2;
+ trace_data = anticoll_data;
+ trace_data_size = sizeof(anticoll_data);
//DbpString("Reader requests anticollission CSN:");
- } else if(receivedCmd[0] == 0x81) {
+ } else if(receivedCmd[0] == ICLASS_CMD_SELECT) {
// Reader selects anticollission CSN.
// Tag sends the corresponding real CSN
- modulated_response = resp3; modulated_response_size = resp3Len; //order = 3;
- trace_data = response3;
- trace_data_size = sizeof(response3);
+ modulated_response = resp_csn; modulated_response_size = resp_csn_len; //order = 3;
+ trace_data = csn_data;
+ trace_data_size = sizeof(csn_data);
//DbpString("Reader selects anticollission CSN:");
- } else if(receivedCmd[0] == 0x88) {
+ } else if(receivedCmd[0] == ICLASS_CMD_READCHECK_KD) {
// Read e-purse (88 02)
- modulated_response = resp4; modulated_response_size = resp4Len; //order = 4;
- trace_data = response4;
- trace_data_size = sizeof(response4);
+ modulated_response = resp_cc; modulated_response_size = resp_cc_len; //order = 4;
+ trace_data = card_challenge_data;
+ trace_data_size = sizeof(card_challenge_data);
LED_B_ON();
- } else if(receivedCmd[0] == 0x05) {
+ } else if(receivedCmd[0] == ICLASS_CMD_CHECK) {
// Reader random and reader MAC!!!
- // Do not respond
- // We do not know what to answer, so lets keep quiet
- modulated_response = resp1; modulated_response_size = 0; //order = 5;
- trace_data = NULL;
- trace_data_size = 0;
- if (breakAfterMacReceived){
- // dbprintf:ing ...
- Dbprintf("CSN: %02x %02x %02x %02x %02x %02x %02x %02x"
- ,csn[0],csn[1],csn[2],csn[3],csn[4],csn[5],csn[6],csn[7]);
- Dbprintf("RDR: (len=%02d): %02x %02x %02x %02x %02x %02x %02x %02x %02x",len,
- receivedCmd[0], receivedCmd[1], receivedCmd[2],
- receivedCmd[3], receivedCmd[4], receivedCmd[5],
- receivedCmd[6], receivedCmd[7], receivedCmd[8]);
- if (reader_mac_buf != NULL)
- {
- memcpy(reader_mac_buf,receivedCmd+1,8);
+ if(simulationMode == MODE_FULLSIM)
+ {
+ //NR, from reader, is in receivedCmd +1
+ opt_doTagMAC_2(cipher_state,receivedCmd+1,data_generic_trace,diversified_key);
+
+ trace_data = data_generic_trace;
+ trace_data_size = 4;
+ CodeIClassTagAnswer(trace_data , trace_data_size);
+ memcpy(data_response, ToSend, ToSendMax);
+ modulated_response = data_response;
+ modulated_response_size = ToSendMax;
+ response_delay = 0;//We need to hurry here...
+ //exitLoop = true;
+ }else
+ { //Not fullsim, we don't respond
+ // We do not know what to answer, so lets keep quiet
+ modulated_response = resp_sof; modulated_response_size = 0;
+ trace_data = NULL;
+ trace_data_size = 0;
+ if (simulationMode == MODE_EXIT_AFTER_MAC){
+ // dbprintf:ing ...
+ Dbprintf("CSN: %02x %02x %02x %02x %02x %02x %02x %02x"
+ ,csn[0],csn[1],csn[2],csn[3],csn[4],csn[5],csn[6],csn[7]);
+ Dbprintf("RDR: (len=%02d): %02x %02x %02x %02x %02x %02x %02x %02x %02x",len,
+ receivedCmd[0], receivedCmd[1], receivedCmd[2],
+ receivedCmd[3], receivedCmd[4], receivedCmd[5],
+ receivedCmd[6], receivedCmd[7], receivedCmd[8]);
+ if (reader_mac_buf != NULL)
+ {
+ memcpy(reader_mac_buf,receivedCmd+1,8);
+ }
+ exitLoop = true;
}
- exitLoop = true;
}
- } else if(receivedCmd[0] == 0x00 && len == 1) {
+
+ } else if(receivedCmd[0] == ICLASS_CMD_HALT && len == 1) {
// Reader ends the session
- modulated_response = resp1; modulated_response_size = 0; //order = 0;
+ modulated_response = resp_sof; modulated_response_size = 0; //order = 0;
trace_data = NULL;
trace_data_size = 0;
- } else {
+ } else if(simulationMode == MODE_FULLSIM && receivedCmd[0] == ICLASS_CMD_READ_OR_IDENTIFY && len == 4){
+ //Read block
+ uint16_t blk = receivedCmd[1];
+ //Take the data...
+ memcpy(data_generic_trace, emulator+(blk << 3),8);
+ //Add crc
+ AppendCrc(data_generic_trace, 8);
+ trace_data = data_generic_trace;
+ trace_data_size = 10;
+ CodeIClassTagAnswer(trace_data , trace_data_size);
+ memcpy(data_response, ToSend, ToSendMax);
+ modulated_response = data_response;
+ modulated_response_size = ToSendMax;
+ }else if(receivedCmd[0] == ICLASS_CMD_UPDATE && simulationMode == MODE_FULLSIM)
+ {//Probably the reader wants to update the nonce. Let's just ignore that for now.
+ // OBS! If this is implemented, don't forget to regenerate the cipher_state
+ //We're expected to respond with the data+crc, exactly what's already in the receivedcmd
+ //receivedcmd is now UPDATE 1b | ADDRESS 1b| DATA 8b| Signature 4b or CRC 2b|
+
+ //Take the data...
+ memcpy(data_generic_trace, receivedCmd+2,8);
+ //Add crc
+ AppendCrc(data_generic_trace, 8);
+ trace_data = data_generic_trace;
+ trace_data_size = 10;
+ CodeIClassTagAnswer(trace_data , trace_data_size);
+ memcpy(data_response, ToSend, ToSendMax);
+ modulated_response = data_response;
+ modulated_response_size = ToSendMax;
+ }
+ else if(receivedCmd[0] == ICLASS_CMD_PAGESEL)
+ {//Pagesel
+ //Pagesel enables to select a page in the selected chip memory and return its configuration block
+ //Chips with a single page will not answer to this command
+ // It appears we're fine ignoring this.
+ //Otherwise, we should answer 8bytes (block) + 2bytes CRC
+ }
+ else {
//#db# Unknown command received from reader (len=5): 26 1 0 f6 a 44 44 44 44
// Never seen this command before
Dbprintf("Unknown command received from reader (len=%d): %x %x %x %x %x %x %x %x %x",
receivedCmd[3], receivedCmd[4], receivedCmd[5],
receivedCmd[6], receivedCmd[7], receivedCmd[8]);
// Do not respond
- modulated_response = resp1; modulated_response_size = 0; //order = 0;
+ modulated_response = resp_sof; modulated_response_size = 0; //order = 0;
trace_data = NULL;
trace_data_size = 0;
}
cmdsRecvd++;
}
/**
- After changes to parity calculation
- Time between reader EOT and pm3 SOF
- delay 21 -> 480uS
- delay 10 -> 220us
- delay 16 -> 388us
- A legit tag has about 380us.
+ A legit tag has about 380us delay between reader EOT and tag SOF.
**/
if(modulated_response_size > 0) {
- SendIClassAnswer(modulated_response, modulated_response_size, 1);
+ SendIClassAnswer(modulated_response, modulated_response_size, response_delay);
t2r_time = GetCountSspClk();
}
}
}
- memset(receivedCmd, 0x44, MAX_FRAME_SIZE);
}
//Dbprintf("%x", cmdsRecvd);
}
WDT_HIT();
}
- if (samples) *samples = (c + *wait) << 3;
+ if (samples && wait) *samples = (c + *wait) << 3;
}
for(j = 0; j < 4; j++) {
for(k = 0; k < 4; k++) {
if(k == (b & 3)) {
- ToSend[++ToSendMax] = 0x0f;
+ ToSend[++ToSendMax] = 0xf0;
}
else {
ToSend[++ToSendMax] = 0x00;
{
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
// Reset trace buffer
- iso14a_set_tracing(TRUE);
- iso14a_clear_trace();
+ set_tracing(TRUE);
+ clear_trace();
// Setup SSC
FpgaSetupSsc();
}
-size_t sendCmdGetResponseWithRetries(uint8_t* command, size_t cmdsize, uint8_t* resp, uint8_t expected_size, uint8_t retries)
+bool sendCmdGetResponseWithRetries(uint8_t* command, size_t cmdsize, uint8_t* resp, uint8_t expected_size, uint8_t retries)
{
while(retries-- > 0)
{
ReaderTransmitIClass(command, cmdsize);
if(expected_size == ReaderReceiveIClass(resp)){
- return 0;
+ return true;
}
}
- return 1;//Error
+ return false;//Error
}
/**
* 1 = Got CSN
* 2 = Got CSN and CC
*/
-uint8_t handshakeIclassTag(uint8_t *card_data)
+uint8_t handshakeIclassTag_ext(uint8_t *card_data, bool use_credit_key)
{
static uint8_t act_all[] = { 0x0a };
- static uint8_t identify[] = { 0x0c };
+ //static uint8_t identify[] = { 0x0c };
+ static uint8_t identify[] = { 0x0c, 0x00, 0x73, 0x33 };
static uint8_t select[] = { 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
static uint8_t readcheck_cc[]= { 0x88, 0x02 };
- uint8_t *resp = (((uint8_t *)BigBuf) + RECV_RESP_OFFSET);
+ if (use_credit_key)
+ readcheck_cc[0] = 0x18;
+ else
+ readcheck_cc[0] = 0x88;
+
+ uint8_t resp[ICLASS_BUFFER_SIZE];
uint8_t read_status = 0;
//Flag that we got to at least stage 1, read CSN
read_status = 1;
- // Card selected, now read e-purse (cc)
+ // Card selected, now read e-purse (cc) (only 8 bytes no CRC)
ReaderTransmitIClass(readcheck_cc, sizeof(readcheck_cc));
if(ReaderReceiveIClass(resp) == 8) {
//Save CC (e-purse) in response data
memcpy(card_data+8,resp,8);
-
- //Got both
- read_status = 2;
+ read_status++;
}
return read_status;
}
+uint8_t handshakeIclassTag(uint8_t *card_data) {
+ return handshakeIclassTag_ext(card_data, false);
+}
+
// Reader iClass Anticollission
void ReaderIClass(uint8_t arg0) {
- uint8_t card_data[24]={0};
- uint8_t last_csn[8]={0};
-
- int read_status= 0;
- bool abort_after_read = arg0 & FLAG_ICLASS_READER_ONLY_ONCE;
- bool get_cc = arg0 & FLAG_ICLASS_READER_GET_CC;
-
- setupIclassReader();
-
- size_t datasize = 0;
- while(!BUTTON_PRESS())
- {
-
- if(traceLen > TRACE_SIZE) {
+ uint8_t card_data[6 * 8]={0};
+ memset(card_data, 0xFF, sizeof(card_data));
+ uint8_t last_csn[8]={0,0,0,0,0,0,0,0};
+ uint8_t resp[ICLASS_BUFFER_SIZE];
+ memset(resp, 0xFF, sizeof(resp));
+ //Read conf block CRC(0x01) => 0xfa 0x22
+ uint8_t readConf[] = { ICLASS_CMD_READ_OR_IDENTIFY,0x01, 0xfa, 0x22};
+ //Read App Issuer Area block CRC(0x05) => 0xde 0x64
+ uint8_t readAA[] = { ICLASS_CMD_READ_OR_IDENTIFY,0x05, 0xde, 0x64};
+
+ int read_status= 0;
+ uint8_t result_status = 0;
+ // flag to read until one tag is found successfully
+ bool abort_after_read = arg0 & FLAG_ICLASS_READER_ONLY_ONCE;
+ // flag to only try 5 times to find one tag then return
+ bool try_once = arg0 & FLAG_ICLASS_READER_ONE_TRY;
+ // if neither abort_after_read nor try_once then continue reading until button pressed.
+
+ bool use_credit_key = arg0 & FLAG_ICLASS_READER_CEDITKEY;
+ // test flags for what blocks to be sure to read
+ uint8_t flagReadConfig = arg0 & FLAG_ICLASS_READER_CONF;
+ uint8_t flagReadCC = arg0 & FLAG_ICLASS_READER_CC;
+ uint8_t flagReadAA = arg0 & FLAG_ICLASS_READER_AA;
+
+ set_tracing(true);
+ setupIclassReader();
+
+ uint16_t tryCnt=0;
+ bool userCancelled = BUTTON_PRESS() || usb_poll_validate_length();
+ while(!userCancelled)
+ {
+ // if only looking for one card try 2 times if we missed it the first time
+ if (try_once && tryCnt > 2) break;
+ tryCnt++;
+ if(!tracing) {
DbpString("Trace full");
break;
}
WDT_HIT();
- read_status = handshakeIclassTag(card_data);
+ read_status = handshakeIclassTag_ext(card_data, use_credit_key);
if(read_status == 0) continue;
- if(read_status == 1) datasize = 8;
- if(read_status == 2) datasize = 16;
+ if(read_status == 1) result_status = FLAG_ICLASS_READER_CSN;
+ if(read_status == 2) result_status = FLAG_ICLASS_READER_CSN|FLAG_ICLASS_READER_CC;
+
+ // handshakeIclass returns CSN|CC, but the actual block
+ // layout is CSN|CONFIG|CC, so here we reorder the data,
+ // moving CC forward 8 bytes
+ memcpy(card_data+16,card_data+8, 8);
+ //Read block 1, config
+ if(flagReadConfig) {
+ if(sendCmdGetResponseWithRetries(readConf, sizeof(readConf), resp, 10, 10))
+ {
+ result_status |= FLAG_ICLASS_READER_CONF;
+ memcpy(card_data+8, resp, 8);
+ } else {
+ Dbprintf("Failed to dump config block");
+ }
+ }
+
+ //Read block 5, AA
+ if(flagReadAA) {
+ if(sendCmdGetResponseWithRetries(readAA, sizeof(readAA), resp, 10, 10))
+ {
+ result_status |= FLAG_ICLASS_READER_AA;
+ memcpy(card_data+(8*5), resp, 8);
+ } else {
+ //Dbprintf("Failed to dump AA block");
+ }
+ }
+
+ // 0 : CSN
+ // 1 : Configuration
+ // 2 : e-purse
+ // (3,4 write-only, kc and kd)
+ // 5 Application issuer area
+ //
+ //Then we can 'ship' back the 8 * 6 bytes of data,
+ // with 0xFF:s in block 3 and 4.
LED_B_ON();
- //Send back to client, but don't bother if we already sent this
+ //Send back to client, but don't bother if we already sent this -
+ // only useful if looping in arm (not try_once && not abort_after_read)
if(memcmp(last_csn, card_data, 8) != 0)
{
-
- if(!get_cc || (get_cc && read_status == 2))
- {
- cmd_send(CMD_ACK,read_status,0,0,card_data,datasize);
+ // If caller requires that we get Conf, CC, AA, continue until we got it
+ if( (result_status ^ FLAG_ICLASS_READER_CSN ^ flagReadConfig ^ flagReadCC ^ flagReadAA) == 0) {
+ cmd_send(CMD_ACK,result_status,0,0,card_data,sizeof(card_data));
if(abort_after_read) {
LED_A_OFF();
+ LED_B_OFF();
return;
}
//Save that we already sent this....
memcpy(last_csn, card_data, 8);
}
- //If 'get_cc' was specified and we didn't get a CC, we'll just keep trying...
+
}
LED_B_OFF();
- }
- cmd_send(CMD_ACK,0,0,0,card_data, 0);
- LED_A_OFF();
+ userCancelled = BUTTON_PRESS() || usb_poll_validate_length();
+ }
+ if (userCancelled) {
+ cmd_send(CMD_ACK,0xFF,0,0,card_data, 0);
+ } else {
+ cmd_send(CMD_ACK,0,0,0,card_data, 0);
+ }
+ LED_A_OFF();
}
void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {
int keyaccess;
} memory;
- uint8_t* resp = (((uint8_t *)BigBuf) + RECV_RESP_OFFSET);
+ uint8_t resp[ICLASS_BUFFER_SIZE];
setupIclassReader();
-
+ set_tracing(TRUE);
while(!BUTTON_PRESS()) {
WDT_HIT();
- if(traceLen > TRACE_SIZE) {
+ if(!tracing) {
DbpString("Trace full");
break;
}
//for now replay captured auth (as cc not updated)
memcpy(check+5,MAC,4);
- if(sendCmdGetResponseWithRetries(check, sizeof(check),resp, 4, 5))
+ if(!sendCmdGetResponseWithRetries(check, sizeof(check),resp, 4, 5))
{
Dbprintf("Error: Authentication Fail!");
continue;
read[2] = crc >> 8;
read[3] = crc & 0xff;
- if(sendCmdGetResponseWithRetries(read, sizeof(read),resp, 10, 10))
+ if(!sendCmdGetResponseWithRetries(read, sizeof(read),resp, 10, 10))
{
Dbprintf("Dump config (block 1) failed");
continue;
//Set card_data to all zeroes, we'll fill it with data
memset(card_data,0x0,USB_CMD_DATA_SIZE);
uint8_t failedRead =0;
- uint8_t stored_data_length =0;
+ uint32_t stored_data_length =0;
//then loop around remaining blocks
for(int block=0; block < cardsize; block++){
read[2] = crc >> 8;
read[3] = crc & 0xff;
- if(!sendCmdGetResponseWithRetries(read, sizeof(read), resp, 10, 10))
+ if(sendCmdGetResponseWithRetries(read, sizeof(read), resp, 10, 10))
{
Dbprintf(" %02x: %02x %02x %02x %02x %02x %02x %02x %02x",
block, resp[0], resp[1], resp[2],
//Fill up the buffer
memcpy(card_data+stored_data_length,resp,8);
stored_data_length += 8;
-
if(stored_data_length +8 > USB_CMD_DATA_SIZE)
{//Time to send this off and start afresh
cmd_send(CMD_ACK,
Dbprintf("Failed to dump block %d", block);
}
}
+
//Send off any remaining data
if(stored_data_length > 0)
{
LED_A_OFF();
}
-//2. Create Read method (cut-down from above) based off responses from 1.
-// Since we have the MAC could continue to use replay function.
-//3. Create Write method
-/*
-void IClass_iso14443A_write(uint8_t arg0, uint8_t blockNo, uint8_t *data, uint8_t *MAC) {
- uint8_t act_all[] = { 0x0a };
- uint8_t identify[] = { 0x0c };
- uint8_t select[] = { 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
- uint8_t readcheck_cc[]= { 0x88, 0x02 };
- uint8_t check[] = { 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
- uint8_t read[] = { 0x0c, 0x00, 0x00, 0x00 };
- uint8_t write[] = { 0x87, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
-
- uint16_t crc = 0;
-
- uint8_t* resp = (((uint8_t *)BigBuf) + 3560);
+void iClass_ReadCheck(uint8_t blockNo, uint8_t keyType) {
+ uint8_t readcheck[] = { keyType, blockNo };
+ uint8_t resp[] = {0,0,0,0,0,0,0,0};
+ size_t isOK = 0;
+ isOK = sendCmdGetResponseWithRetries(readcheck, sizeof(readcheck), resp, sizeof(resp), 6);
+ cmd_send(CMD_ACK,isOK,0,0,0,0);
+}
+
+void iClass_Authentication(uint8_t *MAC) {
+ uint8_t check[] = { ICLASS_CMD_CHECK, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+ uint8_t resp[ICLASS_BUFFER_SIZE];
+ memcpy(check+5,MAC,4);
+ bool isOK;
+ isOK = sendCmdGetResponseWithRetries(check, sizeof(check), resp, 4, 6);
+ cmd_send(CMD_ACK,isOK,0,0,0,0);
+}
+bool iClass_ReadBlock(uint8_t blockNo, uint8_t *readdata) {
+ uint8_t readcmd[] = {ICLASS_CMD_READ_OR_IDENTIFY, blockNo, 0x00, 0x00}; //0x88, 0x00 // can i use 0C?
+ char bl = blockNo;
+ uint16_t rdCrc = iclass_crc16(&bl, 1);
+ readcmd[2] = rdCrc >> 8;
+ readcmd[3] = rdCrc & 0xff;
+ uint8_t resp[] = {0,0,0,0,0,0,0,0,0,0};
+ bool isOK = false;
+
+ //readcmd[1] = blockNo;
+ isOK = sendCmdGetResponseWithRetries(readcmd, sizeof(readcmd), resp, 10, 10);
+ memcpy(readdata, resp, sizeof(resp));
+
+ return isOK;
+}
- // Reset trace buffer
- memset(trace, 0x44, RECV_CMD_OFFSET);
- traceLen = 0;
+void iClass_ReadBlk(uint8_t blockno) {
+ uint8_t readblockdata[] = {0,0,0,0,0,0,0,0,0,0};
+ bool isOK = false;
+ isOK = iClass_ReadBlock(blockno, readblockdata);
+ cmd_send(CMD_ACK, isOK, 0, 0, readblockdata, 8);
+}
- // Setup SSC
- FpgaSetupSsc();
- // Start from off (no field generated)
- // Signal field is off with the appropriate LED
- LED_D_OFF();
+void iClass_Dump(uint8_t blockno, uint8_t numblks) {
+ uint8_t readblockdata[] = {0,0,0,0,0,0,0,0,0,0};
+ bool isOK = false;
+ uint8_t blkCnt = 0;
+
+ BigBuf_free();
+ uint8_t *dataout = BigBuf_malloc(255*8);
+ if (dataout == NULL){
+ Dbprintf("out of memory");
+ OnError(1);
+ return;
+ }
+ memset(dataout,0xFF,255*8);
+
+ for (;blkCnt < numblks; blkCnt++) {
+ isOK = iClass_ReadBlock(blockno+blkCnt, readblockdata);
+ if (!isOK || (readblockdata[0] == 0xBB || readblockdata[7] == 0xBB || readblockdata[2] == 0xBB)) { //try again
+ isOK = iClass_ReadBlock(blockno+blkCnt, readblockdata);
+ if (!isOK) {
+ Dbprintf("Block %02X failed to read", blkCnt+blockno);
+ break;
+ }
+ }
+ memcpy(dataout+(blkCnt*8),readblockdata,8);
+ }
+ //return pointer to dump memory in arg3
+ cmd_send(CMD_ACK,isOK,blkCnt,BigBuf_max_traceLen(),0,0);
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- SpinDelay(200);
-
- SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
+ LEDsoff();
+ BigBuf_free();
+}
- // Now give it time to spin up.
- // Signal field is on with the appropriate LED
- FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
- SpinDelay(200);
+bool iClass_WriteBlock_ext(uint8_t blockNo, uint8_t *data) {
+ uint8_t write[] = { ICLASS_CMD_UPDATE, blockNo, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+ //uint8_t readblockdata[10];
+ //write[1] = blockNo;
+ memcpy(write+2, data, 12); // data + mac
+ char *wrCmd = (char *)(write+1);
+ uint16_t wrCrc = iclass_crc16(wrCmd, 13);
+ write[14] = wrCrc >> 8;
+ write[15] = wrCrc & 0xff;
+ uint8_t resp[] = {0,0,0,0,0,0,0,0,0,0};
+ bool isOK = false;
+
+ isOK = sendCmdGetResponseWithRetries(write,sizeof(write),resp,sizeof(resp),10);
+ if (isOK) { //if reader responded correctly
+ //Dbprintf("WriteResp: %02X%02X%02X%02X%02X%02X%02X%02X%02X%02X",resp[0],resp[1],resp[2],resp[3],resp[4],resp[5],resp[6],resp[7],resp[8],resp[9]);
+ if (memcmp(write+2,resp,8)) { //if response is not equal to write values
+ if (blockNo != 3 && blockNo != 4) { //if not programming key areas (note key blocks don't get programmed with actual key data it is xor data)
+ //error try again
+ isOK = sendCmdGetResponseWithRetries(write,sizeof(write),resp,sizeof(resp),10);
+ }
+
+ }
+ }
+ return isOK;
+}
- LED_A_ON();
+void iClass_WriteBlock(uint8_t blockNo, uint8_t *data) {
+ bool isOK = iClass_WriteBlock_ext(blockNo, data);
+ if (isOK){
+ Dbprintf("Write block [%02x] successful",blockNo);
+ } else {
+ Dbprintf("Write block [%02x] failed",blockNo);
+ }
+ cmd_send(CMD_ACK,isOK,0,0,0,0);
+}
- for(int i=0;i<1;i++) {
-
- if(traceLen > TRACE_SIZE) {
- DbpString("Trace full");
- break;
- }
-
- if (BUTTON_PRESS()) break;
-
- // Send act_all
- ReaderTransmitIClass(act_all, 1);
- // Card present?
- if(ReaderReceiveIClass(resp)) {
- ReaderTransmitIClass(identify, 1);
- if(ReaderReceiveIClass(resp) == 10) {
- // Select card
- memcpy(&select[1],resp,8);
- ReaderTransmitIClass(select, sizeof(select));
-
- if(ReaderReceiveIClass(resp) == 10) {
- Dbprintf(" Selected CSN: %02x %02x %02x %02x %02x %02x %02x %02x",
- resp[0], resp[1], resp[2],
- resp[3], resp[4], resp[5],
- resp[6], resp[7]);
- }
- // Card selected
- Dbprintf("Readcheck on Sector 2");
- ReaderTransmitIClass(readcheck_cc, sizeof(readcheck_cc));
- if(ReaderReceiveIClass(resp) == 8) {
- Dbprintf(" CC: %02x %02x %02x %02x %02x %02x %02x %02x",
- resp[0], resp[1], resp[2],
- resp[3], resp[4], resp[5],
- resp[6], resp[7]);
- }else return;
- Dbprintf("Authenticate");
- //for now replay captured auth (as cc not updated)
- memcpy(check+5,MAC,4);
- Dbprintf(" AA: %02x %02x %02x %02x",
- check[5], check[6], check[7],check[8]);
- ReaderTransmitIClass(check, sizeof(check));
- if(ReaderReceiveIClass(resp) == 4) {
- Dbprintf(" AR: %02x %02x %02x %02x",
- resp[0], resp[1], resp[2],resp[3]);
- }else {
- Dbprintf("Error: Authentication Fail!");
- return;
- }
- Dbprintf("Write Block");
-
- //read configuration for max block number
- read_success=false;
- read[1]=1;
- uint8_t *blockno=&read[1];
- crc = iclass_crc16((char *)blockno,1);
- read[2] = crc >> 8;
- read[3] = crc & 0xff;
- while(!read_success){
- ReaderTransmitIClass(read, sizeof(read));
- if(ReaderReceiveIClass(resp) == 10) {
- read_success=true;
- mem=resp[5];
- memory.k16= (mem & 0x80);
- memory.book= (mem & 0x20);
- memory.k2= (mem & 0x8);
- memory.lockauth= (mem & 0x2);
- memory.keyaccess= (mem & 0x1);
-
- }
- }
- if (memory.k16){
- cardsize=255;
- }else cardsize=32;
- //check card_size
-
- memcpy(write+1,blockNo,1);
- memcpy(write+2,data,8);
- memcpy(write+10,mac,4);
- while(!send_success){
- ReaderTransmitIClass(write, sizeof(write));
- if(ReaderReceiveIClass(resp) == 10) {
- write_success=true;
- }
- }//
+void iClass_Clone(uint8_t startblock, uint8_t endblock, uint8_t *data) {
+ int i;
+ int written = 0;
+ int total_block = (endblock - startblock) + 1;
+ for (i = 0; i < total_block;i++){
+ // block number
+ if (iClass_WriteBlock_ext(i+startblock, data+(i*12))){
+ Dbprintf("Write block [%02x] successful",i + startblock);
+ written++;
+ } else {
+ if (iClass_WriteBlock_ext(i+startblock, data+(i*12))){
+ Dbprintf("Write block [%02x] successful",i + startblock);
+ written++;
+ } else {
+ Dbprintf("Write block [%02x] failed",i + startblock);
+ }
}
- WDT_HIT();
}
-
- LED_A_OFF();
-}*/
+ if (written == total_block)
+ Dbprintf("Clone complete");
+ else
+ Dbprintf("Clone incomplete");
+
+ cmd_send(CMD_ACK,1,0,0,0,0);
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+ LEDsoff();
+}
projects / proxmark3-svn / blobdiff