X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/912a3e94e48952b6a117b4ec9c9623c0ceea1270..refs/pull/40/head:/armsrc/iclass.c?ds=inline
diff --git a/armsrc/iclass.c b/armsrc/iclass.c
index e4b1a488..ea9af7d4 100644
--- a/armsrc/iclass.c
+++ b/armsrc/iclass.c
@@ -41,40 +41,15 @@
#include "util.h"
#include "string.h"
#include "common.h"
+#include "cmd.h"
// Needed for CRC in emulation mode;
// same construction as in ISO 14443;
// different initial value (CRC_ICLASS)
#include "iso14443crc.h"
+#include "iso15693tools.h"
static int timeout = 4096;
-// CARD TO READER
-// Sequence D: 11110000 modulation with subcarrier during first half
-// Sequence E: 00001111 modulation with subcarrier during second half
-// Sequence F: 00000000 no modulation with subcarrier
-// READER TO CARD
-// Sequence X: 00001100 drop after half a period
-// Sequence Y: 00000000 no drop
-// Sequence Z: 11000000 drop at start
-#define SEC_X 0x0c
-#define SEC_Y 0x00
-#define SEC_Z 0xc0
-
-// SAME AS IN iso14443a.
-#define RECV_CMD_OFFSET 3032
-#define RECV_RES_OFFSET 3096
-#define DMA_BUFFER_OFFSET 3160
-#define DMA_BUFFER_SIZE 4096
-#define TRACE_LENGTH 3000
-
-uint32_t SwapBits(uint32_t value, int nrbits) {
- int i;
- uint32_t newvalue = 0;
- for(i = 0; i < nrbits; i++) {
- newvalue ^= ((value >> i) & 1) << (nrbits - 1 - i);
- }
- return newvalue;
-}
static int SendIClassAnswer(uint8_t *resp, int respLen, int delay);
@@ -96,14 +71,13 @@ static struct {
int nOutOfCnt;
int OutOfCnt;
int syncBit;
- int parityBits;
int samples;
int highCnt;
int swapper;
int counter;
int bitBuffer;
int dropPosition;
- uint8_t *output;
+ uint8_t *output;
} Uart;
static RAMFUNC int OutOfNDecoding(int bit)
@@ -162,11 +136,8 @@ static RAMFUNC int OutOfNDecoding(int bit)
if(Uart.byteCnt == 0) {
// Its not straightforward to show single EOFs
// So just leave it and do not return TRUE
- Uart.output[Uart.byteCnt] = 0xf0;
+ Uart.output[0] = 0xf0;
Uart.byteCnt++;
-
- // Calculate the parity bit for the client...
- Uart.parityBits = 1;
}
else {
return TRUE;
@@ -248,11 +219,6 @@ static RAMFUNC int OutOfNDecoding(int bit)
if(Uart.bitCnt == 8) {
Uart.output[Uart.byteCnt] = (Uart.shiftReg & 0xff);
Uart.byteCnt++;
-
- // Calculate the parity bit for the client...
- Uart.parityBits <<= 1;
- Uart.parityBits ^= OddByteParity[(Uart.shiftReg & 0xff)];
-
Uart.bitCnt = 0;
Uart.shiftReg = 0;
}
@@ -271,11 +237,6 @@ static RAMFUNC int OutOfNDecoding(int bit)
Uart.dropPosition--;
Uart.output[Uart.byteCnt] = (Uart.dropPosition & 0xff);
Uart.byteCnt++;
-
- // Calculate the parity bit for the client...
- Uart.parityBits <<= 1;
- Uart.parityBits ^= OddByteParity[(Uart.dropPosition & 0xff)];
-
Uart.bitCnt = 0;
Uart.shiftReg = 0;
Uart.nOutOfCnt = 0;
@@ -336,7 +297,6 @@ static RAMFUNC int OutOfNDecoding(int bit)
Uart.state = STATE_START_OF_COMMUNICATION;
Uart.bitCnt = 0;
Uart.byteCnt = 0;
- Uart.parityBits = 0;
Uart.nOutOfCnt = 0;
Uart.OutOfCnt = 4; // Start at 1/4, could switch to 1/256
Uart.dropPosition = 0;
@@ -378,7 +338,6 @@ static struct {
int bitCount;
int posCount;
int syncBit;
- int parityBits;
uint16_t shiftReg;
int buffer;
int buffer2;
@@ -392,7 +351,7 @@ static struct {
SUB_SECOND_HALF,
SUB_BOTH
} sub;
- uint8_t *output;
+ uint8_t *output;
} Demod;
static RAMFUNC int ManchesterDecoding(int v)
@@ -445,7 +404,6 @@ static RAMFUNC int ManchesterDecoding(int v)
Demod.sub = SUB_FIRST_HALF;
Demod.bitCount = 0;
Demod.shiftReg = 0;
- Demod.parityBits = 0;
Demod.samples = 0;
if(Demod.posCount) {
//if(trigger) LED_A_OFF(); // Not useful in this case...
@@ -475,7 +433,6 @@ static RAMFUNC int ManchesterDecoding(int v)
else {
modulation = bit & Demod.syncBit;
modulation |= ((bit << 1) ^ ((Demod.buffer & 0x08) >> 3)) & Demod.syncBit;
- //modulation = ((bit << 1) ^ ((Demod.buffer & 0x08) >> 3)) & Demod.syncBit;
Demod.samples += 4;
@@ -510,8 +467,6 @@ static RAMFUNC int ManchesterDecoding(int v)
if(Demod.state == DEMOD_SOF_COMPLETE) {
Demod.output[Demod.len] = 0x0f;
Demod.len++;
- Demod.parityBits <<= 1;
- Demod.parityBits ^= OddByteParity[0x0f];
Demod.state = DEMOD_UNSYNCD;
// error = 0x0f;
return TRUE;
@@ -592,11 +547,9 @@ static RAMFUNC int ManchesterDecoding(int v)
// Tag response does not need to be a complete byte!
if(Demod.len > 0 || Demod.bitCount > 0) {
if(Demod.bitCount > 1) { // was > 0, do not interpret last closing bit, is part of EOF
- Demod.shiftReg >>= (9 - Demod.bitCount);
+ Demod.shiftReg >>= (9 - Demod.bitCount); // right align data
Demod.output[Demod.len] = Demod.shiftReg & 0xff;
Demod.len++;
- // No parity bit, so just shift a 0
- Demod.parityBits <<= 1;
}
Demod.state = DEMOD_UNSYNCD;
@@ -633,11 +586,6 @@ static RAMFUNC int ManchesterDecoding(int v)
Demod.shiftReg >>= 1;
Demod.output[Demod.len] = (Demod.shiftReg & 0xff);
Demod.len++;
-
- // FOR ISO15639 PARITY NOT SEND OTA, JUST CALCULATE IT FOR THE CLIENT
- Demod.parityBits <<= 1;
- Demod.parityBits ^= OddByteParity[(Demod.shiftReg & 0xff)];
-
Demod.bitCount = 0;
Demod.shiftReg = 0;
}
@@ -682,12 +630,7 @@ static RAMFUNC int ManchesterDecoding(int v)
//-----------------------------------------------------------------------------
void RAMFUNC SnoopIClass(void)
{
-// DEFINED ABOVE
-// #define RECV_CMD_OFFSET 3032
-// #define RECV_RES_OFFSET 3096
-// #define DMA_BUFFER_OFFSET 3160
-// #define DMA_BUFFER_SIZE 4096
-// #define TRACE_LENGTH 3000
+
// We won't start recording the frames that we acquire until we trigger;
// a good trigger condition to get started is probably when we see a
@@ -697,17 +640,15 @@ void RAMFUNC SnoopIClass(void)
// 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 *receivedCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET);
+ uint8_t *readerToTagCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET);
// The response (tag -> reader) that we're receiving.
- uint8_t *receivedResponse = (((uint8_t *)BigBuf) + RECV_RES_OFFSET);
-
- // As we receive stuff, we copy it from receivedCmd or receivedResponse
- // into trace, along with its length and other annotations.
- //uint8_t *trace = (uint8_t *)BigBuf;
-
+ uint8_t *tagToReaderResponse = (((uint8_t *)BigBuf) + RECV_RESP_OFFSET);
+
+ FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
+
// reset traceLen to 0
iso14a_set_tracing(TRUE);
- iso14a_clear_tracelen();
+ iso14a_clear_trace();
iso14a_set_trigger(FALSE);
// The DMA buffer, used to stream samples from the FPGA
@@ -722,10 +663,8 @@ void RAMFUNC SnoopIClass(void)
int samples = 0;
rsamples = 0;
- memset(trace, 0x44, RECV_CMD_OFFSET);
-
// Set up the demodulator for tag -> reader responses.
- Demod.output = receivedResponse;
+ Demod.output = tagToReaderResponse;
Demod.len = 0;
Demod.state = DEMOD_UNSYNCD;
@@ -737,7 +676,7 @@ void RAMFUNC SnoopIClass(void)
// And the reader -> tag commands
memset(&Uart, 0, sizeof(Uart));
- Uart.output = receivedCmd;
+ Uart.output = readerToTagCmd;
Uart.byteCntMax = 32; // was 100 (greg)////////////////////////////////////////////////////////////////////////
Uart.state = STATE_UNSYNCD;
@@ -747,6 +686,9 @@ void RAMFUNC SnoopIClass(void)
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_SNIFFER);
SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
+ uint32_t time_0 = GetCountSspClk();
+
+
int div = 0;
//int div2 = 0;
int decbyte = 0;
@@ -780,20 +722,13 @@ void RAMFUNC SnoopIClass(void)
//samples += 4;
samples += 1;
- //div2++;
- //if(div2 > 3) {
- //div2 = 0;
- //decbyte ^= ((smpl & 0x01) << (3 - div));
- //decbyte ^= (((smpl & 0x01) | ((smpl & 0x02) >> 1)) << (3 - div)); // better already...
- //decbyte ^= (((smpl & 0x01) | ((smpl & 0x02) >> 1) | ((smpl & 0x04) >> 2)) << (3 - div)); // even better...
if(smpl & 0xF) {
decbyte ^= (1 << (3 - div));
}
- //decbyte ^= (MajorityNibble[(smpl & 0x0F)] << (3 - div));
// FOR READER SIDE COMMUMICATION...
- //decbyte ^= ((smpl & 0x10) << (3 - div));
+
decbyter <<= 2;
decbyter ^= (smpl & 0x30);
@@ -804,21 +739,17 @@ void RAMFUNC SnoopIClass(void)
if(OutOfNDecoding((smpl & 0xF0) >> 4)) {
rsamples = samples - Uart.samples;
LED_C_ON();
- //if(triggered) {
- trace[traceLen++] = ((rsamples >> 0) & 0xff);
- trace[traceLen++] = ((rsamples >> 8) & 0xff);
- trace[traceLen++] = ((rsamples >> 16) & 0xff);
- trace[traceLen++] = ((rsamples >> 24) & 0xff);
- trace[traceLen++] = ((Uart.parityBits >> 0) & 0xff);
- trace[traceLen++] = ((Uart.parityBits >> 8) & 0xff);
- trace[traceLen++] = ((Uart.parityBits >> 16) & 0xff);
- trace[traceLen++] = ((Uart.parityBits >> 24) & 0xff);
- trace[traceLen++] = Uart.byteCnt;
- memcpy(trace+traceLen, receivedCmd, Uart.byteCnt);
- traceLen += Uart.byteCnt;
- if(traceLen > TRACE_LENGTH) break;
- //}
- /* And ready to receive another command. */
+
+ //if(!LogTrace(Uart.output,Uart.byteCnt, rsamples, Uart.parityBits,TRUE)) break;
+ //if(!LogTrace(NULL, 0, Uart.endTime*16 - DELAY_READER_AIR2ARM_AS_SNIFFER, 0, TRUE)) break;
+ if(tracing) {
+ uint8_t parity[MAX_PARITY_SIZE];
+ GetParity(Uart.output, Uart.byteCnt, parity);
+ LogTrace(Uart.output,Uart.byteCnt, (GetCountSspClk()-time_0) << 4, (GetCountSspClk()-time_0) << 4, parity, TRUE);
+ }
+
+
+ /* And ready to receive another command. */
Uart.state = STATE_UNSYNCD;
/* And also reset the demod code, which might have been */
/* false-triggered by the commands from the reader. */
@@ -835,26 +766,16 @@ void RAMFUNC SnoopIClass(void)
rsamples = samples - Demod.samples;
LED_B_ON();
- // timestamp, as a count of samples
- trace[traceLen++] = ((rsamples >> 0) & 0xff);
- trace[traceLen++] = ((rsamples >> 8) & 0xff);
- trace[traceLen++] = ((rsamples >> 16) & 0xff);
- trace[traceLen++] = 0x80 | ((rsamples >> 24) & 0xff);
- trace[traceLen++] = ((Demod.parityBits >> 0) & 0xff);
- trace[traceLen++] = ((Demod.parityBits >> 8) & 0xff);
- trace[traceLen++] = ((Demod.parityBits >> 16) & 0xff);
- trace[traceLen++] = ((Demod.parityBits >> 24) & 0xff);
- // length
- trace[traceLen++] = Demod.len;
- memcpy(trace+traceLen, receivedResponse, Demod.len);
- traceLen += Demod.len;
- if(traceLen > TRACE_LENGTH) break;
-
- //triggered = TRUE;
+ if(tracing) {
+ uint8_t parity[MAX_PARITY_SIZE];
+ GetParity(Demod.output, Demod.len, parity);
+ LogTrace(Demod.output, Demod.len, (GetCountSspClk()-time_0) << 4, (GetCountSspClk()-time_0) << 4, parity, FALSE);
+ }
+
// And ready to receive another response.
memset(&Demod, 0, sizeof(Demod));
- Demod.output = receivedResponse;
+ Demod.output = tagToReaderResponse;
Demod.state = DEMOD_UNSYNCD;
LED_C_OFF();
}
@@ -920,10 +841,7 @@ static int GetIClassCommandFromReader(uint8_t *received, int *len, int maxLen)
}
if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
uint8_t b = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
- /*if(OutOfNDecoding((b & 0xf0) >> 4)) {
- *len = Uart.byteCnt;
- return TRUE;
- }*/
+
if(OutOfNDecoding(b & 0x0f)) {
*len = Uart.byteCnt;
return TRUE;
@@ -938,6 +856,8 @@ static int GetIClassCommandFromReader(uint8_t *received, int *len, int maxLen)
//-----------------------------------------------------------------------------
static void CodeIClassTagAnswer(const uint8_t *cmd, int len)
{
+ //So far a dummy implementation, not used
+ //int lastProxToAirDuration =0;
int i;
ToSendReset();
@@ -946,7 +866,7 @@ static void CodeIClassTagAnswer(const uint8_t *cmd, int len)
ToSend[++ToSendMax] = 0x00;
ToSend[++ToSendMax] = 0x00;
ToSend[++ToSendMax] = 0x00;
- ToSend[++ToSendMax] = 0xff;
+ ToSend[++ToSendMax] = 0xff;//Proxtoair duration starts here
ToSend[++ToSendMax] = 0xff;
ToSend[++ToSendMax] = 0xff;
ToSend[++ToSendMax] = 0x00;
@@ -974,11 +894,13 @@ static void CodeIClassTagAnswer(const uint8_t *cmd, int len)
ToSend[++ToSendMax] = 0x00;
ToSend[++ToSendMax] = 0xff;
ToSend[++ToSendMax] = 0xff;
- ToSend[++ToSendMax] = 0xff;
+ ToSend[++ToSendMax] = 0xff;
ToSend[++ToSendMax] = 0x00;
ToSend[++ToSendMax] = 0x00;
ToSend[++ToSendMax] = 0x00;
+ //lastProxToAirDuration = 8*ToSendMax - 3*8 - 3*8;//Not counting zeroes in the beginning or end
+
// Convert from last byte pos to length
ToSendMax++;
}
@@ -986,8 +908,10 @@ static void CodeIClassTagAnswer(const uint8_t *cmd, int len)
// Only SOF
static void CodeIClassTagSOF()
{
- ToSendReset();
+ //So far a dummy implementation, not used
+ //int lastProxToAirDuration =0;
+ ToSendReset();
// Send SOF
ToSend[++ToSendMax] = 0x00;
ToSend[++ToSendMax] = 0x00;
@@ -997,31 +921,89 @@ static void CodeIClassTagSOF()
ToSend[++ToSendMax] = 0xff;
ToSend[++ToSendMax] = 0x00;
ToSend[++ToSendMax] = 0xff;
+
+// lastProxToAirDuration = 8*ToSendMax - 3*8;//Not counting zeroes in the beginning
+
// Convert from last byte pos to length
ToSendMax++;
}
-
-//-----------------------------------------------------------------------------
-// Simulate iClass Card
-// Only CSN (Card Serial Number)
-//
-//-----------------------------------------------------------------------------
-void SimulateIClass(uint8_t arg0, uint8_t *datain)
+int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader_mac_buf);
+/**
+ * @brief SimulateIClass simulates an iClass card.
+ * @param arg0 type of simulation
+ * - 0 uses the first 8 bytes in usb data as CSN
+ * - 2 "dismantling iclass"-attack. This mode iterates through all CSN's specified
+ * in the usb data. This mode collects MAC from the reader, in order to do an offline
+ * attack on the keys. For more info, see "dismantling iclass" and proxclone.com.
+ * - Other : Uses the default CSN (031fec8af7ff12e0)
+ * @param arg1 - number of CSN's contained in datain (applicable for mode 2 only)
+ * @param arg2
+ * @param datain
+ */
+void SimulateIClass(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain)
{
- uint8_t simType = arg0;
+ uint32_t simType = arg0;
+ uint32_t numberOfCSNS = arg1;
+ FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
- // CSN followed by two CRC bytes
- uint8_t response2[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
- uint8_t response3[] = { 0x03, 0x1f, 0xec, 0x8a, 0xf7, 0xff, 0x12, 0xe0, 0x00, 0x00 };
-
- // e-Purse
- uint8_t response4[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+ // Enable and clear the trace
+ iso14a_set_tracing(TRUE);
+ iso14a_clear_trace();
+ uint8_t csn_crc[] = { 0x03, 0x1f, 0xec, 0x8a, 0xf7, 0xff, 0x12, 0xe0, 0x00, 0x00 };
if(simType == 0) {
// Use the CSN from commandline
- memcpy(response3, datain, 8);
+ memcpy(csn_crc, datain, 8);
+ doIClassSimulation(csn_crc,0,NULL);
+ }else if(simType == 1)
+ {
+ doIClassSimulation(csn_crc,0,NULL);
+ }
+ else if(simType == 2)
+ {
+
+ uint8_t mac_responses[64] = { 0 };
+ Dbprintf("Going into attack mode, %d CSNS sent", numberOfCSNS);
+ // In this mode, a number of csns are within datain. We'll simulate each one, one at a time
+ // in order to collect MAC's from the reader. This can later be used in an offlne-attack
+ // in order to obtain the keys, as in the "dismantling iclass"-paper.
+ int i = 0;
+ for( ; i < numberOfCSNS && i*8+8 < USB_CMD_DATA_SIZE; i++)
+ {
+ // 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))
+ {
+ return; // Button pressed
+ }
+ }
+ cmd_send(CMD_ACK,CMD_SIMULATE_TAG_ICLASS,i,0,mac_responses,i*8);
+
+ }
+ else{
+ // We may want a mode here where we hardcode the csns to use (from proxclone).
+ // That will speed things up a little, but not required just yet.
+ Dbprintf("The mode is not implemented, reserved for future use");
}
+ Dbprintf("Done...");
+
+}
+/**
+ * @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)
+{
+ // CSN followed by two CRC bytes
+ 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));
+ 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);
@@ -1030,6 +1012,7 @@ void SimulateIClass(uint8_t arg0, uint8_t *datain)
ComputeCrc14443(CRC_ICLASS, response2, 8, &response2[8], &response2[9]);
ComputeCrc14443(CRC_ICLASS, response3, 8, &response3[8], &response3[9]);
+ int exitLoop = 0;
// Reader 0a
// Tag 0f
// Reader 0c
@@ -1037,31 +1020,34 @@ void SimulateIClass(uint8_t arg0, uint8_t *datain)
// Reader 81 anticoll. CSN
// Tag CSN
- uint8_t *resp;
- int respLen;
+ uint8_t *resp;
+ int respLen;
+ uint8_t* respdata = NULL;
+ int respsize = 0;
+ uint8_t sof = 0x0f;
// Respond SOF -- takes 8 bytes
- uint8_t *resp1 = (((uint8_t *)BigBuf) + 800);
+ uint8_t *resp1 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET);
int resp1Len;
// Anticollision CSN (rotated CSN)
// 176: Takes 16 bytes for SOF/EOF and 10 * 16 = 160 bytes (2 bytes/bit)
- uint8_t *resp2 = (((uint8_t *)BigBuf) + 810);
+ uint8_t *resp2 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + 10);
int resp2Len;
// CSN
// 176: Takes 16 bytes for SOF/EOF and 10 * 16 = 160 bytes (2 bytes/bit)
- uint8_t *resp3 = (((uint8_t *)BigBuf) + 990);
+ uint8_t *resp3 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + 190);
int resp3Len;
// e-Purse
// 144: Takes 16 bytes for SOF/EOF and 8 * 16 = 128 bytes (2 bytes/bit)
- uint8_t *resp4 = (((uint8_t *)BigBuf) + 1170);
+ uint8_t *resp4 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + 370);
int resp4Len;
// + 1720..
- uint8_t *receivedCmd = (uint8_t *)BigBuf;
- memset(receivedCmd, 0x44, 400);
+ uint8_t *receivedCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET);
+ memset(receivedCmd, 0x44, MAX_FRAME_SIZE);
int len;
// Prepare card messages
@@ -1083,65 +1069,99 @@ void SimulateIClass(uint8_t arg0, uint8_t *datain)
CodeIClassTagAnswer(response4, sizeof(response4));
memcpy(resp4, ToSend, ToSendMax); resp4Len = ToSendMax;
+
+ // Start from off (no field generated)
+ //FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+ //SpinDelay(200);
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_LISTEN);
+ SpinDelay(100);
+ StartCountSspClk();
// We need to listen to the high-frequency, peak-detected path.
SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
FpgaSetupSsc();
// To control where we are in the protocol
int cmdsRecvd = 0;
+ uint32_t time_0 = GetCountSspClk();
+ uint32_t t2r_time =0;
+ uint32_t r2t_time =0;
LED_A_ON();
- for(;;) {
+ bool buttonPressed = false;
+
+ /** Hack for testing
+ memcpy(reader_mac_buf,csn,8);
+ exitLoop = true;
+ end hack **/
+
+ while(!exitLoop) {
+
LED_B_OFF();
+ //Signal tracer
+ // Can be used to get a trigger for an oscilloscope..
+ LED_C_OFF();
+
if(!GetIClassCommandFromReader(receivedCmd, &len, 100)) {
- DbpString("button press");
+ buttonPressed = true;
break;
- }
+ }
+ r2t_time = GetCountSspClk();
+ //Signal tracer
+ LED_C_ON();
- // Okay, look at the command now.
- if(receivedCmd[0] == 0x0a) {
+ // Okay, look at the command now.
+ if(receivedCmd[0] == 0x0a ) {
// Reader in anticollission phase
resp = resp1; respLen = resp1Len; //order = 1;
- //resp = resp2; respLen = resp2Len; order = 2;
- //DbpString("Hello request from reader:");
+ respdata = &sof;
+ respsize = sizeof(sof);
} else if(receivedCmd[0] == 0x0c) {
// Reader asks for anticollission CSN
resp = resp2; respLen = resp2Len; //order = 2;
+ respdata = response2;
+ respsize = sizeof(response2);
//DbpString("Reader requests anticollission CSN:");
} else if(receivedCmd[0] == 0x81) {
// Reader selects anticollission CSN.
// Tag sends the corresponding real CSN
resp = resp3; respLen = resp3Len; //order = 3;
+ respdata = response3;
+ respsize = sizeof(response3);
//DbpString("Reader selects anticollission CSN:");
} else if(receivedCmd[0] == 0x88) {
// Read e-purse (88 02)
resp = resp4; respLen = resp4Len; //order = 4;
+ respdata = response4;
+ respsize = sizeof(response4);
LED_B_ON();
} else if(receivedCmd[0] == 0x05) {
// Reader random and reader MAC!!!
- // Lets store this ;-)
- Dbprintf(" CSN: %02x %02x %02x %02x %02x %02x %02x %02x",
- response3[0], response3[1], response3[2],
- response3[3], response3[4], response3[5],
- response3[6], response3[7]);
- Dbprintf("READER AUTH (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]);
-
// Do not respond
- // We do not know what to answer, so lets keep quit
+ // We do not know what to answer, so lets keep quiet
resp = resp1; respLen = 0; //order = 5;
+ respdata = NULL;
+ respsize = 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);
+ }
+ exitLoop = true;
+ }
} else if(receivedCmd[0] == 0x00 && len == 1) {
// Reader ends the session
resp = resp1; respLen = 0; //order = 0;
-/* } else if(receivedCmd[0] == 0x50) {
- // Received a HALT
- resp = resp1; respLen = 0; order = 5; // Do nothing
- DbpString("Reader requested we HALT!:");
-*/
- } else {
+ respdata = NULL;
+ respsize = 0;
+ } 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",
len,
@@ -1150,65 +1170,81 @@ void SimulateIClass(uint8_t arg0, uint8_t *datain)
receivedCmd[6], receivedCmd[7], receivedCmd[8]);
// Do not respond
resp = resp1; respLen = 0; //order = 0;
+ respdata = NULL;
+ respsize = 0;
}
- memset(receivedCmd, 0x44, 32);
-
- if(cmdsRecvd > 999) {
- DbpString("1000 commands later...");
- break;
+ if(cmdsRecvd > 100) {
+ //DbpString("100 commands later...");
+ //break;
}
else {
cmdsRecvd++;
}
- if(respLen <= 0) continue;
+ if(respLen > 0) {
+ SendIClassAnswer(resp, respLen, 21);
+ t2r_time = GetCountSspClk();
+ }
- SendIClassAnswer(resp, respLen, 21);
- }
+ if (tracing) {
+ uint8_t parity[MAX_PARITY_SIZE];
+ GetParity(receivedCmd, len, parity);
+ LogTrace(receivedCmd,len, (r2t_time-time_0)<< 4, (r2t_time-time_0) << 4, parity, TRUE);
- Dbprintf("%x", cmdsRecvd);
+ if (respdata != NULL) {
+ GetParity(respdata, respsize, parity);
+ LogTrace(respdata, respsize, (t2r_time-time_0) << 4, (t2r_time-time_0) << 4, parity, FALSE);
+ }
+ if(!tracing) {
+ DbpString("Trace full");
+ //break;
+ }
+
+ }
+ memset(receivedCmd, 0x44, MAX_FRAME_SIZE);
+ }
+
+ //Dbprintf("%x", cmdsRecvd);
LED_A_OFF();
LED_B_OFF();
+ if(buttonPressed)
+ {
+ DbpString("Button pressed");
+ }
+ return buttonPressed;
}
static int SendIClassAnswer(uint8_t *resp, int respLen, int delay)
{
- int i = 0, u = 0, d = 0;
+ int i = 0, d=0;//, u = 0, d = 0;
uint8_t b = 0;
- // return 0;
- // Modulate Manchester
- // FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_MOD424);
- FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_MOD);
+
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_SIMULATOR|FPGA_HF_SIMULATOR_MODULATE_424K);
+
AT91C_BASE_SSC->SSC_THR = 0x00;
FpgaSetupSsc();
-
- // send cycle
- for(;;) {
- if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
- volatile uint8_t b = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
- (void)b;
+ while(!BUTTON_PRESS()) {
+ if((AT91C_BASE_SSC->SSC_SR & AT91C_SSC_RXRDY)){
+ b = AT91C_BASE_SSC->SSC_RHR; (void) b;
}
- if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
+ if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)){
+ b = 0x00;
if(d < delay) {
- b = 0x00;
d++;
}
- else if(i >= respLen) {
- b = 0x00;
- u++;
- } else {
- b = resp[i];
- u++;
- if(u > 1) { i++; u = 0; }
+ else {
+ if( i < respLen){
+ b = resp[i];
+ //Hack
+ //b = 0xAC;
+ }
+ i++;
}
AT91C_BASE_SSC->SSC_THR = b;
-
- if(u > 4) break;
- }
- if(BUTTON_PRESS()) {
- break;
}
+
+ if (i > respLen +4) break;
}
return 0;
@@ -1222,26 +1258,28 @@ static int SendIClassAnswer(uint8_t *resp, int respLen, int delay)
static void TransmitIClassCommand(const uint8_t *cmd, int len, int *samples, int *wait)
{
int c;
-
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
AT91C_BASE_SSC->SSC_THR = 0x00;
FpgaSetupSsc();
if (wait)
- if(*wait < 10)
- *wait = 10;
+ {
+ if(*wait < 10) *wait = 10;
+
+ for(c = 0; c < *wait;) {
+ if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
+ AT91C_BASE_SSC->SSC_THR = 0x00; // For exact timing!
+ c++;
+ }
+ if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
+ volatile uint32_t r = AT91C_BASE_SSC->SSC_RHR;
+ (void)r;
+ }
+ WDT_HIT();
+ }
+
+ }
- for(c = 0; c < *wait;) {
- if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
- AT91C_BASE_SSC->SSC_THR = 0x00; // For exact timing!
- c++;
- }
- if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
- volatile uint32_t r = AT91C_BASE_SSC->SSC_RHR;
- (void)r;
- }
- WDT_HIT();
- }
uint8_t sendbyte;
bool firstpart = TRUE;
@@ -1298,12 +1336,12 @@ void CodeIClassCommand(const uint8_t * cmd, int len)
b = cmd[i];
for(j = 0; j < 4; j++) {
for(k = 0; k < 4; k++) {
- if(k == (b & 3)) {
- ToSend[++ToSendMax] = 0x0f;
- }
- else {
- ToSend[++ToSendMax] = 0x00;
- }
+ if(k == (b & 3)) {
+ ToSend[++ToSendMax] = 0x0f;
+ }
+ else {
+ ToSend[++ToSendMax] = 0x00;
+ }
}
b >>= 2;
}
@@ -1321,21 +1359,23 @@ void CodeIClassCommand(const uint8_t * cmd, int len)
void ReaderTransmitIClass(uint8_t* frame, int len)
{
- int wait = 0;
- int samples = 0;
- int par = 0;
-
- // This is tied to other size changes
- // uint8_t* frame_addr = ((uint8_t*)BigBuf) + 2024;
- CodeIClassCommand(frame,len);
-
- // Select the card
- TransmitIClassCommand(ToSend, ToSendMax, &samples, &wait);
- if(trigger)
- LED_A_ON();
-
- // Store reader command in buffer
- if (tracing) LogTrace(frame,len,0,par,TRUE);
+ int wait = 0;
+ int samples = 0;
+
+ // This is tied to other size changes
+ CodeIClassCommand(frame,len);
+
+ // Select the card
+ TransmitIClassCommand(ToSend, ToSendMax, &samples, &wait);
+ if(trigger)
+ LED_A_ON();
+
+ // Store reader command in buffer
+ if (tracing) {
+ uint8_t par[MAX_PARITY_SIZE];
+ GetParity(frame, len, par);
+ LogTrace(frame, len, rsamples, rsamples, par, TRUE);
+ }
}
//-----------------------------------------------------------------------------
@@ -1377,10 +1417,7 @@ static int GetIClassAnswer(uint8_t *receivedResponse, int maxLen, int *samples,
b = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
skip = !skip;
if(skip) continue;
- /*if(ManchesterDecoding((b>>4) & 0xf)) {
- *samples = ((c - 1) << 3) + 4;
- return TRUE;
- }*/
+
if(ManchesterDecoding(b & 0x0f)) {
*samples = c << 3;
return TRUE;
@@ -1393,21 +1430,316 @@ int ReaderReceiveIClass(uint8_t* receivedAnswer)
{
int samples = 0;
if (!GetIClassAnswer(receivedAnswer,160,&samples,0)) return FALSE;
- if (tracing) LogTrace(receivedAnswer,Demod.len,samples,Demod.parityBits,FALSE);
+ rsamples += samples;
+ if (tracing) {
+ uint8_t parity[MAX_PARITY_SIZE];
+ GetParity(receivedAnswer, Demod.len, parity);
+ LogTrace(receivedAnswer,Demod.len,rsamples,rsamples,parity,FALSE);
+ }
if(samples == 0) return FALSE;
return Demod.len;
}
+void setupIclassReader()
+{
+ FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
+ // Reset trace buffer
+ iso14a_set_tracing(TRUE);
+ iso14a_clear_trace();
+
+ // Setup SSC
+ FpgaSetupSsc();
+ // Start from off (no field generated)
+ // Signal field is off with the appropriate LED
+ LED_D_OFF();
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+ SpinDelay(200);
+
+ SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
+
+ // 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);
+ LED_A_ON();
+
+}
+
+size_t 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 1;//Error
+}
+
+/**
+ * @brief Talks to an iclass tag, sends the commands to get CSN and CC.
+ * @param card_data where the CSN and CC are stored for return
+ * @return 0 = fail
+ * 1 = Got CSN
+ * 2 = Got CSN and CC
+ */
+uint8_t handshakeIclassTag(uint8_t *card_data)
+{
+ static uint8_t act_all[] = { 0x0a };
+ static uint8_t identify[] = { 0x0c };
+ 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);
+
+ uint8_t read_status = 0;
+
+ // Send act_all
+ ReaderTransmitIClass(act_all, 1);
+ // Card present?
+ if(!ReaderReceiveIClass(resp)) return read_status;//Fail
+ //Send Identify
+ ReaderTransmitIClass(identify, 1);
+ //We expect a 10-byte response here, 8 byte anticollision-CSN and 2 byte CRC
+ uint8_t len = ReaderReceiveIClass(resp);
+ if(len != 10) return read_status;//Fail
+
+ //Copy the Anti-collision CSN to our select-packet
+ memcpy(&select[1],resp,8);
+ //Select the card
+ ReaderTransmitIClass(select, sizeof(select));
+ //We expect a 10-byte response here, 8 byte CSN and 2 byte CRC
+ len = ReaderReceiveIClass(resp);
+ if(len != 10) return read_status;//Fail
+
+ //Success - level 1, we got CSN
+ //Save CSN in response data
+ memcpy(card_data,resp,8);
+
+ //Flag that we got to at least stage 1, read CSN
+ read_status = 1;
+
+ // Card selected, now read e-purse (cc)
+ 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;
+ }
+
+ return read_status;
+}
+
// 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) {
+ DbpString("Trace full");
+ break;
+ }
+ WDT_HIT();
+
+ read_status = handshakeIclassTag(card_data);
+
+ if(read_status == 0) continue;
+ if(read_status == 1) datasize = 8;
+ if(read_status == 2) datasize = 16;
+
+ LED_B_ON();
+ //Send back to client, but don't bother if we already sent this
+ 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(abort_after_read) {
+ LED_A_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();
+}
+
+void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {
+
+ uint8_t card_data[USB_CMD_DATA_SIZE]={0};
+ uint16_t block_crc_LUT[255] = {0};
+
+ {//Generate a lookup table for block crc
+ for(int block = 0; block < 255; block++){
+ char bl = block;
+ block_crc_LUT[block] = iclass_crc16(&bl ,1);
+ }
+ }
+ //Dbprintf("Lookup table: %02x %02x %02x" ,block_crc_LUT[0],block_crc_LUT[1],block_crc_LUT[2]);
+
+ uint8_t check[] = { 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+ uint8_t read[] = { 0x0c, 0x00, 0x00, 0x00 };
+
+ uint16_t crc = 0;
+ uint8_t cardsize=0;
+ uint8_t mem=0;
+
+ static struct memory_t{
+ int k16;
+ int book;
+ int k2;
+ int lockauth;
+ int keyaccess;
+ } memory;
+
+ uint8_t* resp = (((uint8_t *)BigBuf) + RECV_RESP_OFFSET);
+
+ setupIclassReader();
+
+
+ while(!BUTTON_PRESS()) {
+
+ WDT_HIT();
+
+ if(traceLen > TRACE_SIZE) {
+ DbpString("Trace full");
+ break;
+ }
+
+ uint8_t read_status = handshakeIclassTag(card_data);
+ if(read_status < 2) continue;
+
+ //for now replay captured auth (as cc not updated)
+ memcpy(check+5,MAC,4);
+
+ if(sendCmdGetResponseWithRetries(check, sizeof(check),resp, 4, 5))
+ {
+ Dbprintf("Error: Authentication Fail!");
+ continue;
+ }
+
+ //first get configuration block (block 1)
+ crc = block_crc_LUT[1];
+ read[1]=1;
+ read[2] = crc >> 8;
+ read[3] = crc & 0xff;
+
+ if(sendCmdGetResponseWithRetries(read, sizeof(read),resp, 10, 10))
+ {
+ Dbprintf("Dump config (block 1) failed");
+ continue;
+ }
+
+ mem=resp[5];
+ memory.k16= (mem & 0x80);
+ memory.book= (mem & 0x20);
+ memory.k2= (mem & 0x8);
+ memory.lockauth= (mem & 0x2);
+ memory.keyaccess= (mem & 0x1);
+
+ cardsize = memory.k16 ? 255 : 32;
+ WDT_HIT();
+ //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;
+ //then loop around remaining blocks
+ for(int block=0; block < cardsize; block++){
+
+ read[1]= block;
+ crc = block_crc_LUT[block];
+ read[2] = crc >> 8;
+ read[3] = crc & 0xff;
+
+ 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],
+ resp[3], resp[4], resp[5],
+ resp[6], resp[7]);
+
+ //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,
+ stored_data_length,//data length
+ failedRead,//Failed blocks?
+ 0,//Not used ATM
+ card_data, stored_data_length);
+ //reset
+ stored_data_length = 0;
+ failedRead = 0;
+ }
+
+ }else{
+ failedRead = 1;
+ stored_data_length +=8;//Otherwise, data becomes misaligned
+ Dbprintf("Failed to dump block %d", block);
+ }
+ }
+ //Send off any remaining data
+ if(stored_data_length > 0)
+ {
+ cmd_send(CMD_ACK,
+ stored_data_length,//data length
+ failedRead,//Failed blocks?
+ 0,//Not used ATM
+ card_data, stored_data_length);
+ }
+ //If we got here, let's break
+ break;
+ }
+ //Signal end of transmission
+ cmd_send(CMD_ACK,
+ 0,//data length
+ 0,//Failed blocks?
+ 0,//Not used ATM
+ card_data, 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* resp = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes
+ 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);
// Reset trace buffer
- memset(trace, 0x44, RECV_CMD_OFFSET);
+ memset(trace, 0x44, RECV_CMD_OFFSET);
traceLen = 0;
// Setup SSC
@@ -1427,75 +1759,92 @@ void ReaderIClass(uint8_t arg0) {
LED_A_ON();
- for(;;) {
- if(traceLen > TRACE_LENGTH || BUTTON_PRESS()) break;
+ 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)) {
- //ReaderTransmitIClass(select, sizeof(select));
- }
+ 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;
+ }
+ }//
}
WDT_HIT();
}
LED_A_OFF();
-
-/* if(resp_data)
- memcpy(resp_data->atqa, resp, 2);
-
- // OK we will select at least at cascade 1, lets see if first byte of UID was 0x88 in
- // which case we need to make a cascade 2 request and select - this is a long UID
- // While the UID is not complete, the 3nd bit (from the right) is set in the SAK.
- for(; sak & 0x04; cascade_level++)
- {
- // SELECT_* (L1: 0x93, L2: 0x95, L3: 0x97)
- sel_uid[0] = sel_all[0] = 0x93 + cascade_level * 2;
-
- // SELECT_ALL
- ReaderTransmit(sel_all,sizeof(sel_all));
- if (!ReaderReceive(resp)) return 0;
- if(uid_ptr) memcpy(uid_ptr + cascade_level*4, resp, 4);
-
- // calculate crypto UID
- if(cuid_ptr) *cuid_ptr = bytes_to_num(resp, 4);
-
- // Construct SELECT UID command
- memcpy(sel_uid+2,resp,5);
- AppendCrc14443a(sel_uid,7);
- ReaderTransmit(sel_uid,sizeof(sel_uid));
-
- // Receive the SAK
- if (!ReaderReceive(resp)) return 0;
- sak = resp[0];
- }
- if(resp_data) {
- resp_data->sak = sak;
- resp_data->ats_len = 0;
- }
- //-- this byte not UID, it CT. http://www.nxp.com/documents/application_note/AN10927.pdf page 3
- if (uid_ptr[0] == 0x88) {
- memcpy(uid_ptr, uid_ptr + 1, 7);
- uid_ptr[7] = 0;
- }
-
- if( (sak & 0x20) == 0)
- return 2; // non iso14443a compliant tag
-
- // Request for answer to select
- if(resp_data) { // JCOP cards - if reader sent RATS then there is no MIFARE session at all!!!
- AppendCrc14443a(rats, 2);
- ReaderTransmit(rats, sizeof(rats));
-
- if (!(len = ReaderReceive(resp))) return 0;
-
- memcpy(resp_data->ats, resp, sizeof(resp_data->ats));
- resp_data->ats_len = len;
- }
-*/
-}
-
-
+}*/