// pointer to the emulator memory.
static uint8_t *emulator_memory = NULL;
-// trace related global variables
-// (only one left). ToDo: make this static as well?
-uint16_t traceLen = 0;
-
+// trace related variables
+static uint16_t traceLen = 0;
+int tracing = 1; //Last global one.. todo static?
// get the address of BigBuf
uint8_t *BigBuf_get_addr(void)
{
return BigBuf_hi;
}
+
+void clear_trace() {
+ uint8_t *trace = BigBuf_get_addr();
+ uint16_t max_traceLen = BigBuf_max_traceLen();
+ memset(trace, 0x44, max_traceLen);
+ traceLen = 0;
+}
+
+void set_tracing(bool enable) {
+ tracing = enable;
+}
+
+/**
+ * Get the number of bytes traced
+ * @return
+ */
+uint16_t BigBuf_get_traceLen(void)
+{
+ return traceLen;
+}
+
+/**
+ This is a function to store traces. All protocols can use this generic tracer-function.
+ The traces produced by calling this function can be fetched on the client-side
+ by 'hf list raw', alternatively 'hf list <proto>' for protocol-specific
+ annotation of commands/responses.
+
+**/
+bool RAMFUNC LogTrace(const uint8_t *btBytes, uint16_t iLen, uint32_t timestamp_start, uint32_t timestamp_end, uint8_t *parity, bool readerToTag)
+{
+ if (!tracing) return FALSE;
+
+ uint8_t *trace = BigBuf_get_addr();
+
+ uint16_t num_paritybytes = (iLen-1)/8 + 1; // number of valid paritybytes in *parity
+ uint16_t duration = timestamp_end - timestamp_start;
+
+ // Return when trace is full
+ uint16_t max_traceLen = BigBuf_max_traceLen();
+
+ if (traceLen + sizeof(iLen) + sizeof(timestamp_start) + sizeof(duration) + num_paritybytes + iLen >= max_traceLen) {
+ tracing = FALSE; // don't trace any more
+ return FALSE;
+ }
+ // Traceformat:
+ // 32 bits timestamp (little endian)
+ // 16 bits duration (little endian)
+ // 16 bits data length (little endian, Highest Bit used as readerToTag flag)
+ // y Bytes data
+ // x Bytes parity (one byte per 8 bytes data)
+
+ // timestamp (start)
+ trace[traceLen++] = ((timestamp_start >> 0) & 0xff);
+ trace[traceLen++] = ((timestamp_start >> 8) & 0xff);
+ trace[traceLen++] = ((timestamp_start >> 16) & 0xff);
+ trace[traceLen++] = ((timestamp_start >> 24) & 0xff);
+
+ // duration
+ trace[traceLen++] = ((duration >> 0) & 0xff);
+ trace[traceLen++] = ((duration >> 8) & 0xff);
+
+ // data length
+ trace[traceLen++] = ((iLen >> 0) & 0xff);
+ trace[traceLen++] = ((iLen >> 8) & 0xff);
+
+ // readerToTag flag
+ if (!readerToTag) {
+ trace[traceLen - 1] |= 0x80;
+ }
+
+ // data bytes
+ if (btBytes != NULL && iLen != 0) {
+ memcpy(trace + traceLen, btBytes, iLen);
+ }
+ traceLen += iLen;
+
+ // parity bytes
+ if (parity != NULL && iLen != 0) {
+ memcpy(trace + traceLen, parity, num_paritybytes);
+ }
+ traceLen += num_paritybytes;
+
+ if(traceLen +4 < max_traceLen)
+ { //If it hadn't been cleared, for whatever reason..
+ memset(trace+traceLen,0x44, 4);
+ }
+
+ return TRUE;
+}
extern void BigBuf_free(void);
extern void BigBuf_free_keep_EM(void);
-extern uint16_t traceLen;
+uint16_t BigBuf_get_traceLen(void);
+void clear_trace();
+void set_tracing(bool enable);
+bool RAMFUNC LogTrace(const uint8_t *btBytes, uint16_t iLen, uint32_t timestamp_start, uint32_t timestamp_end, uint8_t *parity, bool readerToTag);
#endif /* __BIGBUF_H */
#include "legicrf.h"
#include <hitag2.h>
#include "lfsampling.h"
+#include "BigBuf.h"
#ifdef WITH_LCD
#include "LCD.h"
#endif
uint8_t *BigBuf = BigBuf_get_addr();
for(size_t i=0; i<c->arg[1]; i += USB_CMD_DATA_SIZE) {
size_t len = MIN((c->arg[1] - i),USB_CMD_DATA_SIZE);
- cmd_send(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K,i,len,traceLen,BigBuf+c->arg[0]+i,len);
+ cmd_send(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K,i,len,BigBuf_get_traceLen(),BigBuf+c->arg[0]+i,len);
}
// Trigger a finish downloading signal with an ACK frame
- cmd_send(CMD_ACK,1,0,traceLen,getSamplingConfig(),sizeof(sample_config));
+ cmd_send(CMD_ACK,1,0,BigBuf_get_traceLen(),getSamplingConfig(),sizeof(sample_config));
LED_B_OFF();
break;
bool RAMFUNC LogTrace(const uint8_t *btBytes, uint16_t len, uint32_t timestamp_start, uint32_t timestamp_end, uint8_t *parity, bool readerToTag);
void GetParity(const uint8_t *pbtCmd, uint16_t len, uint8_t *parity);
void iso14a_set_trigger(bool enable);
-void iso14a_clear_trace();
-void iso14a_set_tracing(bool enable);
+
void RAMFUNC SniffMifare(uint8_t param);
/// epa.h
memset(auth_table, 0x00, AUTH_TABLE_LENGTH);
// Clean up trace and prepare it for storing frames
- iso14a_set_tracing(TRUE);
- iso14a_clear_trace();
+ set_tracing(TRUE);
+ clear_trace();
DbpString("Starting Hitag2 snoop");
LED_D_ON();
memset(auth_table, 0x00, AUTH_TABLE_LENGTH);
// Clean up trace and prepare it for storing frames
- iso14a_set_tracing(TRUE);
- iso14a_clear_trace();
+ set_tracing(TRUE);
+ clear_trace();
DbpString("Starting Hitag2 simulation");
LED_D_ON();
bSuccessful = false;
// Clean up trace and prepare it for storing frames
- iso14a_set_tracing(TRUE);
- iso14a_clear_trace();
+ set_tracing(TRUE);
+ clear_trace();
DbpString("Starting Hitag reader family");
// The DMA buffer, used to stream samples from the FPGA
uint8_t *dmaBuf = BigBuf_malloc(DMA_BUFFER_SIZE);
- // reset traceLen to 0
- iso14a_set_tracing(TRUE);
- iso14a_clear_trace();
+ set_tracing(TRUE);
+ clear_trace();
iso14a_set_trigger(FALSE);
int lastRxCounter;
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();
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
// Enable and clear the trace
- iso14a_set_tracing(TRUE);
- iso14a_clear_trace();
+ set_tracing(TRUE);
+ clear_trace();
uint8_t csn_crc[] = { 0x03, 0x1f, 0xec, 0x8a, 0xf7, 0xff, 0x12, 0xe0, 0x00, 0x00 };
if(simType == 0) {
{
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
// Reset trace buffer
- iso14a_set_tracing(TRUE);
- iso14a_clear_trace();
+ set_tracing(TRUE);
+ clear_trace();
// Setup SSC
FpgaSetupSsc();
int read_status= 0;
bool abort_after_read = arg0 & FLAG_ICLASS_READER_ONLY_ONCE;
bool get_cc = arg0 & FLAG_ICLASS_READER_GET_CC;
-
+ set_tracing(TRUE);
setupIclassReader();
size_t datasize = 0;
while(!BUTTON_PRESS())
{
- if(traceLen > BigBuf_max_traceLen()) {
+ if(!tracing) {
DbpString("Trace full");
break;
}
uint8_t resp[ICLASS_BUFFER_SIZE];
setupIclassReader();
-
+ set_tracing(TRUE);
while(!BUTTON_PRESS()) {
WDT_HIT();
- if(traceLen > BigBuf_max_traceLen()) {
+ if(!tracing) {
DbpString("Trace full");
break;
}
Dbprintf(" Uart State: %x", Uart.state);
Dbprintf(" Uart ByteCnt: %i", Uart.byteCnt);
Dbprintf(" Uart ByteCntMax: %i", Uart.byteCntMax);
- Dbprintf(" Trace length: %i", traceLen);
+ Dbprintf(" Trace length: %i", BigBuf_get_traceLen());
}
/*
#include "iso14443a.h"
#include "crapto1.h"
#include "mifareutil.h"
-
+#include "BigBuf.h"
static uint32_t iso14a_timeout;
int rsamples = 0;
uint8_t trigger = 0;
uint8_t *dmaBuf = BigBuf_malloc(DMA_BUFFER_SIZE);
// init trace buffer
- iso14a_clear_trace();
- iso14a_set_tracing(TRUE);
+ clear_trace();
+ set_tracing(TRUE);
uint8_t *data = dmaBuf;
uint8_t previous_data = 0;
FpgaDisableSscDma();
Dbprintf("maxDataLen=%d, Uart.state=%x, Uart.len=%d", maxDataLen, Uart.state, Uart.len);
- Dbprintf("traceLen=%d, Uart.output[0]=%08x", traceLen, (uint32_t)Uart.output[0]);
+ Dbprintf("traceLen=%d, Uart.output[0]=%08x", BigBuf_get_traceLen(), (uint32_t)Uart.output[0]);
LEDsoff();
}
free_buffer_pointer = BigBuf_malloc(ALLOCATED_TAG_MODULATION_BUFFER_SIZE);
// clear trace
- iso14a_clear_trace();
- iso14a_set_tracing(TRUE);
+ clear_trace();
+ set_tracing(TRUE);
// Prepare the responses of the anticollision phase
// there will be not enough time to do this at the moment the reader sends it REQA
uint8_t par[MAX_PARITY_SIZE];
if(param & ISO14A_CONNECT) {
- iso14a_clear_trace();
+ clear_trace();
}
- iso14a_set_tracing(TRUE);
+ set_tracing(TRUE);
if(param & ISO14A_REQUEST_TRIGGER) {
iso14a_set_trigger(TRUE);
// free eventually allocated BigBuf memory. We want all for tracing.
BigBuf_free();
- iso14a_clear_trace();
- iso14a_set_tracing(TRUE);
+ clear_trace();
+ set_tracing(TRUE);
byte_t nt_diff = 0;
uint8_t par[1] = {0}; // maximum 8 Bytes to be sent here, 1 byte parity is therefore enough
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LEDsoff();
- iso14a_set_tracing(FALSE);
+ set_tracing(FALSE);
}
/**
// free eventually allocated BigBuf memory but keep Emulator Memory
BigBuf_free_keep_EM();
// clear trace
- iso14a_clear_trace();
- iso14a_set_tracing(TRUE);
+ clear_trace();
+ set_tracing(TRUE);
// Authenticate response - nonce
uint32_t nonce = bytes_to_num(rAUTH_NT, 4);
}
}
}
- if (MF_DBGLEVEL >= 1) Dbprintf("Emulator stopped. Tracing: %d trace length: %d ", tracing, traceLen);
+ if (MF_DBGLEVEL >= 1) Dbprintf("Emulator stopped. Tracing: %d trace length: %d ", tracing, BigBuf_get_traceLen());
}
// C(red) A(yellow) B(green)
LEDsoff();
// init trace buffer
- iso14a_clear_trace();
- iso14a_set_tracing(TRUE);
+ clear_trace();
+ set_tracing(TRUE);
// The command (reader -> tag) that we're receiving.
// The length of a received command will in most cases be no more than 18 bytes.
pcs = &mpcs;\r
\r
// clear trace\r
- iso14a_clear_trace();\r
+ clear_trace();\r
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
\r
LED_A_ON();\r
LED_B_OFF();\r
LED_C_OFF();\r
\r
- iso14a_clear_trace();\r
+ clear_trace();\r
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
\r
if(!iso14443a_select_card(uid, NULL, &cuid)) {\r
LED_B_OFF();\r
LED_C_OFF();\r
\r
- iso14a_clear_trace();\r
+ clear_trace();\r
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
\r
int len = iso14443a_select_card(uid, NULL, &cuid);\r
pcs = &mpcs;\r
\r
// clear trace\r
- iso14a_clear_trace();\r
+ clear_trace();\r
\r
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
\r
if (MF_DBGLEVEL >= MF_DBG_ALL) \r
Dbprintf("Pages %d",Pages);\r
\r
- iso14a_clear_trace();\r
+ clear_trace();\r
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
\r
int len = iso14443a_select_card(uid, NULL, &cuid);\r
pcs = &mpcs;\r
\r
// clear trace\r
- iso14a_clear_trace();\r
+ clear_trace();\r
\r
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
\r
uint8_t uid[10] = {0x00};\r
uint32_t cuid;\r
\r
- iso14a_clear_trace();\r
+ clear_trace();\r
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
\r
LED_A_ON();\r
uint8_t uid[10] = {0x00};\r
uint32_t cuid;\r
\r
- iso14a_clear_trace();\r
+ clear_trace();\r
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
\r
LED_A_ON();\r
// free eventually allocated BigBuf memory\r
BigBuf_free();\r
// clear trace\r
- iso14a_clear_trace();\r
- iso14a_set_tracing(false);\r
+ clear_trace();\r
+ set_tracing(false);\r
\r
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
\r
\r
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
LEDsoff();\r
- iso14a_set_tracing(TRUE);\r
+ set_tracing(TRUE);\r
}\r
\r
//-----------------------------------------------------------------------------\r
MF_DBGLEVEL = MF_DBG_NONE;\r
\r
// clear trace\r
- iso14a_clear_trace();\r
- iso14a_set_tracing(TRUE);\r
+ clear_trace();\r
+ set_tracing(TRUE);\r
\r
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
\r
uint8_t uid[10];\r
\r
// clear trace\r
- iso14a_clear_trace();\r
- iso14a_set_tracing(false);\r
+ clear_trace();\r
+ set_tracing(false);\r
\r
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
\r
LED_B_OFF();\r
LED_C_OFF();\r
\r
- iso14a_clear_trace();\r
- iso14a_set_tracing(TRUE);\r
+ clear_trace();\r
+ set_tracing(TRUE);\r
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
}\r
\r
LED_B_OFF();\r
LED_C_OFF();\r
\r
- iso14a_clear_trace();\r
- iso14a_set_tracing(TRUE);\r
+ clear_trace();\r
+ set_tracing(TRUE);\r
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
}\r
\r
uint8_t uid[10] = {0x00};\r
uint32_t cuid;\r
\r
- iso14a_clear_trace();\r
+ clear_trace();\r
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
\r
int len = iso14443a_select_card(uid, NULL, &cuid);\r
cmd_send(CMD_ACK, isOK, 0, 0, dataout, sizeof(dataout));\r
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
LEDsoff();\r
-}
+}\r
}\r
\r
bool RAMFUNC MfSniffSend(uint16_t maxTimeoutMs) {\r
- if (traceLen && (GetTickCount() > timerData + maxTimeoutMs)) {\r
+ if (BigBuf_get_traceLen() && (GetTickCount() > timerData + maxTimeoutMs)) {\r
return intMfSniffSend();\r
}\r
return FALSE;\r
bool intMfSniffSend() {\r
\r
int pckSize = 0;\r
- int pckLen = traceLen;\r
+ int pckLen = BigBuf_get_traceLen();\r
int pckNum = 0;\r
uint8_t *trace = BigBuf_get_addr();\r
\r
while (pckLen > 0) {\r
pckSize = MIN(USB_CMD_DATA_SIZE, pckLen);\r
LED_B_ON();\r
- cmd_send(CMD_ACK, 1, traceLen, pckSize, trace + traceLen - pckLen, pckSize);\r
+ cmd_send(CMD_ACK, 1, BigBuf_get_traceLen(), pckSize, trace + BigBuf_get_traceLen() - pckLen, pckSize);\r
LED_B_OFF();\r
\r
pckLen -= pckSize;\r
cmd_send(CMD_ACK,2,0,0,0,0);\r
LED_B_OFF();\r
\r
- iso14a_clear_trace();\r
+ clear_trace();\r
\r
return TRUE;\r
}\r
#include "apps.h"
#include "BigBuf.h"
-int tracing = TRUE;
void print_result(char *name, uint8_t *buf, size_t len) {
return tmp_count;
}
}
-void iso14a_clear_trace() {
- clear_trace();
-}
-
-void iso14a_set_tracing(bool enable) {
- set_tracing(enable);
-}
-
-void clear_trace() {
- uint8_t *trace = BigBuf_get_addr();
- uint16_t max_traceLen = BigBuf_max_traceLen();
- memset(trace, 0x44, max_traceLen);
- traceLen = 0;
-}
-
-void set_tracing(bool enable) {
- tracing = enable;
-}
-
-/**
- This is a function to store traces. All protocols can use this generic tracer-function.
- The traces produced by calling this function can be fetched on the client-side
- by 'hf list raw', alternatively 'hf list <proto>' for protocol-specific
- annotation of commands/responses.
-
-**/
-bool RAMFUNC LogTrace(const uint8_t *btBytes, uint16_t iLen, uint32_t timestamp_start, uint32_t timestamp_end, uint8_t *parity, bool readerToTag)
-{
- if (!tracing) return FALSE;
-
- uint8_t *trace = BigBuf_get_addr();
-
- uint16_t num_paritybytes = (iLen-1)/8 + 1; // number of valid paritybytes in *parity
- uint16_t duration = timestamp_end - timestamp_start;
-
- // Return when trace is full
- uint16_t max_traceLen = BigBuf_max_traceLen();
-
- if (traceLen + sizeof(iLen) + sizeof(timestamp_start) + sizeof(duration) + num_paritybytes + iLen >= max_traceLen) {
- tracing = FALSE; // don't trace any more
- return FALSE;
- }
- // Traceformat:
- // 32 bits timestamp (little endian)
- // 16 bits duration (little endian)
- // 16 bits data length (little endian, Highest Bit used as readerToTag flag)
- // y Bytes data
- // x Bytes parity (one byte per 8 bytes data)
-
- // timestamp (start)
- trace[traceLen++] = ((timestamp_start >> 0) & 0xff);
- trace[traceLen++] = ((timestamp_start >> 8) & 0xff);
- trace[traceLen++] = ((timestamp_start >> 16) & 0xff);
- trace[traceLen++] = ((timestamp_start >> 24) & 0xff);
-
- // duration
- trace[traceLen++] = ((duration >> 0) & 0xff);
- trace[traceLen++] = ((duration >> 8) & 0xff);
-
- // data length
- trace[traceLen++] = ((iLen >> 0) & 0xff);
- trace[traceLen++] = ((iLen >> 8) & 0xff);
-
- // readerToTag flag
- if (!readerToTag) {
- trace[traceLen - 1] |= 0x80;
- }
-
- // data bytes
- if (btBytes != NULL && iLen != 0) {
- memcpy(trace + traceLen, btBytes, iLen);
- }
- traceLen += iLen;
-
- // parity bytes
- if (parity != NULL && iLen != 0) {
- memcpy(trace + traceLen, parity, num_paritybytes);
- }
- traceLen += num_paritybytes;
-
- if(traceLen +4 < max_traceLen)
- { //If it hadn't been cleared, for whatever reason..
- memset(trace+traceLen,0x44, 4);
- }
-
- return TRUE;
-}
int BUTTON_CLICKED(int ms);
int BUTTON_HELD(int ms);
void FormatVersionInformation(char *dst, int len, const char *prefix, void *version_information);
-// @deprecated
-void iso14a_clear_trace();
-// @deprecated
-void iso14a_set_tracing(bool enable);
-void clear_trace();
-void set_tracing(bool enable);
-
-// The function LogTrace() is also used by the iClass implementation in iclass.c and both iso14443a, iso14443b and mifare
-bool RAMFUNC LogTrace(const uint8_t *btBytes, uint16_t iLen, uint32_t timestamp_start, uint32_t timestamp_end, uint8_t *parity, bool readerToTag);
void StartTickCount();
uint32_t RAMFUNC GetTickCount();