//-----------------------------------------------------------------------------
+// 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.
+//-----------------------------------------------------------------------------
// Miscellaneous routines for low frequency tag operations.
// Tags supported here so far are Texas Instruments (TI), HID
// Also routines for raw mode reading/simulating of LF waveform
-//
//-----------------------------------------------------------------------------
+
#include "proxmark3.h"
#include "apps.h"
#include "util.h"
{
int i;
uint8_t *tab = (uint8_t *)BigBuf;
-
- FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_SIMULATOR);
-
+
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_EDGE_DETECT);
+
AT91C_BASE_PIOA->PIO_PER = GPIO_SSC_DOUT | GPIO_SSC_CLK;
-
+
AT91C_BASE_PIOA->PIO_OER = GPIO_SSC_DOUT;
AT91C_BASE_PIOA->PIO_ODR = GPIO_SSC_CLK;
-
+
#define SHORT_COIL() LOW(GPIO_SSC_DOUT)
#define OPEN_COIL() HIGH(GPIO_SSC_DOUT)
-
+
i = 0;
for(;;) {
while(!(AT91C_BASE_PIOA->PIO_PDSR & GPIO_SSC_CLK)) {
}
WDT_HIT();
}
-
+
if (ledcontrol)
LED_D_ON();
-
+
if(tab[i])
OPEN_COIL();
else
SHORT_COIL();
-
+
if (ledcontrol)
LED_D_OFF();
-
+
while(AT91C_BASE_PIOA->PIO_PDSR & GPIO_SSC_CLK) {
if(BUTTON_PRESS()) {
DbpString("Stopped");
}
WDT_HIT();
}
-
+
i++;
if(i == period) {
i = 0;
}
}
-/* Provides a framework for bidirectional LF tag communication
- * Encoding is currently Hitag2, but the general idea can probably
- * be transferred to other encodings.
- *
- * The new FPGA code will, for the LF simulator mode, give on SSC_FRAME
- * (PA15) a thresholded version of the signal from the ADC. Setting the
- * ADC path to the low frequency peak detection signal, will enable a
- * somewhat reasonable receiver for modulation on the carrier signal
- * that is generated by the reader. The signal is low when the reader
- * field is switched off, and high when the reader field is active. Due
- * to the way that the signal looks like, mostly only the rising edge is
- * useful, your mileage may vary.
- *
- * Neat perk: PA15 can not only be used as a bit-banging GPIO, but is also
- * TIOA1, which can be used as the capture input for timer 1. This should
- * make it possible to measure the exact edge-to-edge time, without processor
- * intervention.
- *
- * Arguments: divisor is the divisor to be sent to the FPGA (e.g. 95 for 125kHz)
- * t0 is the carrier frequency cycle duration in terms of MCK (384 for 125kHz)
- *
- * The following defines are in carrier periods:
- */
-#define HITAG_T_0_MIN 15 /* T[0] should be 18..22 */
-#define HITAG_T_1_MIN 24 /* T[1] should be 26..30 */
-#define HITAG_T_EOF 40 /* T_EOF should be > 36 */
-#define HITAG_T_WRESP 208 /* T_wresp should be 204..212 */
-
-static void hitag_handle_frame(int t0, int frame_len, char *frame);
-//#define DEBUG_RA_VALUES 1
#define DEBUG_FRAME_CONTENTS 1
void SimulateTagLowFrequencyBidir(int divisor, int t0)
{
-#if DEBUG_RA_VALUES || DEBUG_FRAME_CONTENTS
- int i = 0;
-#endif
- char frame[10];
- int frame_pos=0;
-
- DbpString("Starting Hitag2 emulator, press button to end");
- hitag2_init();
-
- /* Set up simulator mode, frequency divisor which will drive the FPGA
- * and analog mux selection.
- */
- FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_SIMULATOR);
- FpgaSendCommand(FPGA_CMD_SET_DIVISOR, divisor);
- SetAdcMuxFor(GPIO_MUXSEL_LOPKD);
- RELAY_OFF();
-
- /* Set up Timer 1:
- * Capture mode, timer source MCK/2 (TIMER_CLOCK1), TIOA is external trigger,
- * external trigger rising edge, load RA on rising edge of TIOA, load RB on rising
- * edge of TIOA. Assign PA15 to TIOA1 (peripheral B)
- */
-
- AT91C_BASE_PMC->PMC_PCER = (1 << AT91C_ID_TC1);
- AT91C_BASE_PIOA->PIO_BSR = GPIO_SSC_FRAME;
- AT91C_BASE_TC1->TC_CCR = AT91C_TC_CLKDIS;
- AT91C_BASE_TC1->TC_CMR = TC_CMR_TCCLKS_TIMER_CLOCK1 |
- AT91C_TC_ETRGEDG_RISING |
- AT91C_TC_ABETRG |
- AT91C_TC_LDRA_RISING |
- AT91C_TC_LDRB_RISING;
- AT91C_BASE_TC1->TC_CCR = AT91C_TC_CLKEN |
- AT91C_TC_SWTRG;
-
- /* calculate the new value for the carrier period in terms of TC1 values */
- t0 = t0/2;
-
- int overflow = 0;
- while(!BUTTON_PRESS()) {
- WDT_HIT();
- if(AT91C_BASE_TC1->TC_SR & AT91C_TC_LDRAS) {
- int ra = AT91C_BASE_TC1->TC_RA;
- if((ra > t0*HITAG_T_EOF) | overflow) ra = t0*HITAG_T_EOF+1;
-#if DEBUG_RA_VALUES
- if(ra > 255 || overflow) ra = 255;
- ((char*)BigBuf)[i] = ra;
- i = (i+1) % 8000;
-#endif
-
- if(overflow || (ra > t0*HITAG_T_EOF) || (ra < t0*HITAG_T_0_MIN)) {
- /* Ignore */
- } else if(ra >= t0*HITAG_T_1_MIN ) {
- /* '1' bit */
- if(frame_pos < 8*sizeof(frame)) {
- frame[frame_pos / 8] |= 1<<( 7-(frame_pos%8) );
- frame_pos++;
- }
- } else if(ra >= t0*HITAG_T_0_MIN) {
- /* '0' bit */
- if(frame_pos < 8*sizeof(frame)) {
- frame[frame_pos / 8] |= 0<<( 7-(frame_pos%8) );
- frame_pos++;
- }
- }
-
- overflow = 0;
- LED_D_ON();
- } else {
- if(AT91C_BASE_TC1->TC_CV > t0*HITAG_T_EOF) {
- /* Minor nuisance: In Capture mode, the timer can not be
- * stopped by a Compare C. There's no way to stop the clock
- * in software, so we'll just have to note the fact that an
- * overflow happened and the next loaded timer value might
- * have wrapped. Also, this marks the end of frame, and the
- * still running counter can be used to determine the correct
- * time for the start of the reply.
- */
- overflow = 1;
-
- if(frame_pos > 0) {
- /* Have a frame, do something with it */
-#if DEBUG_FRAME_CONTENTS
- ((char*)BigBuf)[i++] = frame_pos;
- memcpy( ((char*)BigBuf)+i, frame, 7);
- i+=7;
- i = i % sizeof(BigBuf);
-#endif
- hitag_handle_frame(t0, frame_pos, frame);
- memset(frame, 0, sizeof(frame));
- }
- frame_pos = 0;
-
- }
- LED_D_OFF();
- }
- }
- DbpString("All done");
-}
-
-static void hitag_send_bit(int t0, int bit) {
- if(bit == 1) {
- /* Manchester: Loaded, then unloaded */
- LED_A_ON();
- SHORT_COIL();
- while(AT91C_BASE_TC1->TC_CV < t0*15);
- OPEN_COIL();
- while(AT91C_BASE_TC1->TC_CV < t0*31);
- LED_A_OFF();
- } else if(bit == 0) {
- /* Manchester: Unloaded, then loaded */
- LED_B_ON();
- OPEN_COIL();
- while(AT91C_BASE_TC1->TC_CV < t0*15);
- SHORT_COIL();
- while(AT91C_BASE_TC1->TC_CV < t0*31);
- LED_B_OFF();
- }
- AT91C_BASE_TC1->TC_CCR = AT91C_TC_SWTRG; /* Reset clock for the next bit */
-
-}
-static void hitag_send_frame(int t0, int frame_len, const char const * frame, int fdt)
-{
- OPEN_COIL();
- AT91C_BASE_PIOA->PIO_OER = GPIO_SSC_DOUT;
-
- /* Wait for HITAG_T_WRESP carrier periods after the last reader bit,
- * not that since the clock counts since the rising edge, but T_wresp is
- * with respect to the falling edge, we need to wait actually (T_wresp - T_g)
- * periods. The gap time T_g varies (4..10).
- */
- while(AT91C_BASE_TC1->TC_CV < t0*(fdt-8));
-
- int saved_cmr = AT91C_BASE_TC1->TC_CMR;
- AT91C_BASE_TC1->TC_CMR &= ~AT91C_TC_ETRGEDG; /* Disable external trigger for the clock */
- AT91C_BASE_TC1->TC_CCR = AT91C_TC_SWTRG; /* Reset the clock and use it for response timing */
-
- int i;
- for(i=0; i<5; i++)
- hitag_send_bit(t0, 1); /* Start of frame */
-
- for(i=0; i<frame_len; i++) {
- hitag_send_bit(t0, !!(frame[i/ 8] & (1<<( 7-(i%8) ))) );
- }
-
- OPEN_COIL();
- AT91C_BASE_TC1->TC_CMR = saved_cmr;
-}
-
-/* Callback structure to cleanly separate tag emulation code from the radio layer. */
-static int hitag_cb(const char* response_data, const int response_length, const int fdt, void *cb_cookie)
-{
- hitag_send_frame(*(int*)cb_cookie, response_length, response_data, fdt);
- return 0;
-}
-/* Frame length in bits, frame contents in MSBit first format */
-static void hitag_handle_frame(int t0, int frame_len, char *frame)
-{
- hitag2_handle_command(frame, frame_len, hitag_cb, &t0);
}
// compose fc/8 fc/10 waveform
WDT_HIT();
}
}
+
+/*------------------------------
+ * T5555/T5557/T5567 routines
+ *------------------------------
+ */
+
+/* T55x7 configuration register definitions */
+#define T55x7_POR_DELAY 0x00000001
+#define T55x7_ST_TERMINATOR 0x00000008
+#define T55x7_PWD 0x00000010
+#define T55x7_MAXBLOCK_SHIFT 5
+#define T55x7_AOR 0x00000200
+#define T55x7_PSKCF_RF_2 0
+#define T55x7_PSKCF_RF_4 0x00000400
+#define T55x7_PSKCF_RF_8 0x00000800
+#define T55x7_MODULATION_DIRECT 0
+#define T55x7_MODULATION_PSK1 0x00001000
+#define T55x7_MODULATION_PSK2 0x00002000
+#define T55x7_MODULATION_PSK3 0x00003000
+#define T55x7_MODULATION_FSK1 0x00004000
+#define T55x7_MODULATION_FSK2 0x00005000
+#define T55x7_MODULATION_FSK1a 0x00006000
+#define T55x7_MODULATION_FSK2a 0x00007000
+#define T55x7_MODULATION_MANCHESTER 0x00008000
+#define T55x7_MODULATION_BIPHASE 0x00010000
+#define T55x7_BITRATE_RF_8 0
+#define T55x7_BITRATE_RF_16 0x00040000
+#define T55x7_BITRATE_RF_32 0x00080000
+#define T55x7_BITRATE_RF_40 0x000C0000
+#define T55x7_BITRATE_RF_50 0x00100000
+#define T55x7_BITRATE_RF_64 0x00140000
+#define T55x7_BITRATE_RF_100 0x00180000
+#define T55x7_BITRATE_RF_128 0x001C0000
+
+/* T5555 (Q5) configuration register definitions */
+#define T5555_ST_TERMINATOR 0x00000001
+#define T5555_MAXBLOCK_SHIFT 0x00000001
+#define T5555_MODULATION_MANCHESTER 0
+#define T5555_MODULATION_PSK1 0x00000010
+#define T5555_MODULATION_PSK2 0x00000020
+#define T5555_MODULATION_PSK3 0x00000030
+#define T5555_MODULATION_FSK1 0x00000040
+#define T5555_MODULATION_FSK2 0x00000050
+#define T5555_MODULATION_BIPHASE 0x00000060
+#define T5555_MODULATION_DIRECT 0x00000070
+#define T5555_INVERT_OUTPUT 0x00000080
+#define T5555_PSK_RF_2 0
+#define T5555_PSK_RF_4 0x00000100
+#define T5555_PSK_RF_8 0x00000200
+#define T5555_USE_PWD 0x00000400
+#define T5555_USE_AOR 0x00000800
+#define T5555_BITRATE_SHIFT 12
+#define T5555_FAST_WRITE 0x00004000
+#define T5555_PAGE_SELECT 0x00008000
+
+/*
+ * Relevant times in microsecond
+ * To compensate antenna falling times shorten the write times
+ * and enlarge the gap ones.
+ */
+#define START_GAP 250
+#define WRITE_GAP 160
+#define WRITE_0 144 // 192
+#define WRITE_1 400 // 432 for T55x7; 448 for E5550
+
+// Write one bit to card
+void T55xxWriteBit(int bit)
+{
+ FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER);
+ if (bit == 0)
+ SpinDelayUs(WRITE_0);
+ else
+ SpinDelayUs(WRITE_1);
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+ SpinDelayUs(WRITE_GAP);
+}
+
+// Write one card block in page 0, no lock
+void T55xxWriteBlock(int Data, int Block)
+{
+ unsigned int i;
+
+ FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER);
+
+ // Give it a bit of time for the resonant antenna to settle.
+ // And for the tag to fully power up
+ SpinDelay(150);
+
+ // Now start writting
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+ SpinDelayUs(START_GAP);
+
+ // Opcode
+ T55xxWriteBit(1);
+ T55xxWriteBit(0); //Page 0
+ // Lock bit
+ T55xxWriteBit(0);
+
+ // Data
+ for (i = 0x80000000; i != 0; i >>= 1)
+ T55xxWriteBit(Data & i);
+
+ // Page
+ for (i = 0x04; i != 0; i >>= 1)
+ T55xxWriteBit(Block & i);
+
+ // Now perform write (nominal is 5.6 ms for T55x7 and 18ms for E5550,
+ // so wait a little more)
+ FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER);
+ SpinDelay(20);
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+}
+
+// Copy HID id to card and setup block 0 config
+void CopyHIDtoT55x7(int hi, int lo)
+{
+ int data1, data2, data3;
+
+ // Ensure no more than 44 bits supplied
+ if (hi>0xFFF) {
+ DbpString("Tags can only have 44 bits.");
+ return;
+ }
+
+ // Build the 3 data blocks for supplied 44bit ID
+ data1 = 0x1D000000; // load preamble
+
+ for (int i=0;i<12;i++) {
+ if (hi & (1<<(11-i)))
+ data1 |= (1<<(((11-i)*2)+1)); // 1 -> 10
+ else
+ data1 |= (1<<((11-i)*2)); // 0 -> 01
+ }
+
+ data2 = 0;
+ for (int i=0;i<16;i++) {
+ if (lo & (1<<(31-i)))
+ data2 |= (1<<(((15-i)*2)+1)); // 1 -> 10
+ else
+ data2 |= (1<<((15-i)*2)); // 0 -> 01
+ }
+
+ data3 = 0;
+ for (int i=0;i<16;i++) {
+ if (lo & (1<<(15-i)))
+ data3 |= (1<<(((15-i)*2)+1)); // 1 -> 10
+ else
+ data3 |= (1<<((15-i)*2)); // 0 -> 01
+ }
+
+ // Program the 3 data blocks for supplied 44bit ID
+ // and the block 0 for HID format
+ T55xxWriteBlock(data1,1);
+ T55xxWriteBlock(data2,2);
+ T55xxWriteBlock(data3,3);
+
+ // Config for HID (RF/50, FSK2a, Maxblock=3)
+ T55xxWriteBlock(T55x7_BITRATE_RF_50 |
+ T55x7_MODULATION_FSK2a |
+ 3 << T55x7_MAXBLOCK_SHIFT,
+ 0);
+
+ DbpString("DONE!");
+}
+
+// Define 9bit header for EM410x tags
+#define EM410X_HEADER 0x1FF
+#define EM410X_ID_LENGTH 40
+
+void WriteEM410x(uint32_t card, uint32_t id_hi, uint32_t id_lo)
+{
+ int i, id_bit;
+ uint64_t id = EM410X_HEADER;
+ uint64_t rev_id = 0; // reversed ID
+ int c_parity[4]; // column parity
+ int r_parity = 0; // row parity
+
+ // Reverse ID bits given as parameter (for simpler operations)
+ for (i = 0; i < EM410X_ID_LENGTH; ++i) {
+ if (i < 32) {
+ rev_id = (rev_id << 1) | (id_lo & 1);
+ id_lo >>= 1;
+ } else {
+ rev_id = (rev_id << 1) | (id_hi & 1);
+ id_hi >>= 1;
+ }
+ }
+
+ for (i = 0; i < EM410X_ID_LENGTH; ++i) {
+ id_bit = rev_id & 1;
+
+ if (i % 4 == 0) {
+ // Don't write row parity bit at start of parsing
+ if (i)
+ id = (id << 1) | r_parity;
+ // Start counting parity for new row
+ r_parity = id_bit;
+ } else {
+ // Count row parity
+ r_parity ^= id_bit;
+ }
+
+ // First elements in column?
+ if (i < 4)
+ // Fill out first elements
+ c_parity[i] = id_bit;
+ else
+ // Count column parity
+ c_parity[i % 4] ^= id_bit;
+
+ // Insert ID bit
+ id = (id << 1) | id_bit;
+ rev_id >>= 1;
+ }
+
+ // Insert parity bit of last row
+ id = (id << 1) | r_parity;
+
+ // Fill out column parity at the end of tag
+ for (i = 0; i < 4; ++i)
+ id = (id << 1) | c_parity[i];
+
+ // Add stop bit
+ id <<= 1;
+
+ Dbprintf("Started writing %s tag ...", card ? "T55x7":"T5555");
+ LED_D_ON();
+
+ // Write EM410x ID
+ T55xxWriteBlock((uint32_t)(id >> 32), 1);
+ T55xxWriteBlock((uint32_t)id, 2);
+
+ // Config for EM410x (RF/64, Manchester, Maxblock=2)
+ if (card)
+ // Writing configuration for T55x7 tag
+ T55xxWriteBlock(T55x7_BITRATE_RF_64 |
+ T55x7_MODULATION_MANCHESTER |
+ 2 << T55x7_MAXBLOCK_SHIFT,
+ 0);
+ else
+ // Writing configuration for T5555(Q5) tag
+ T55xxWriteBlock(0x1F << T5555_BITRATE_SHIFT |
+ T5555_MODULATION_MANCHESTER |
+ 2 << T5555_MAXBLOCK_SHIFT,
+ 0);
+
+ LED_D_OFF();
+ Dbprintf("Tag %s written with 0x%08x%08x\n", card ? "T55x7":"T5555",
+ (uint32_t)(id >> 32), (uint32_t)id);
+}
+
+// Clone Indala 64-bit tag by UID to T55x7
+void CopyIndala64toT55x7(int hi, int lo)
+{
+
+ //Program the 2 data blocks for supplied 64bit UID
+ // and the block 0 for Indala64 format
+ T55xxWriteBlock(hi,1);
+ T55xxWriteBlock(lo,2);
+ //Config for Indala (RF/32;PSK1 with RF/2;Maxblock=2)
+ T55xxWriteBlock(T55x7_BITRATE_RF_32 |
+ T55x7_MODULATION_PSK1 |
+ 2 << T55x7_MAXBLOCK_SHIFT,
+ 0);
+ //Alternative config for Indala (Extended mode;RF/32;PSK1 with RF/2;Maxblock=2;Inverse data)
+// T5567WriteBlock(0x603E1042,0);
+
+ DbpString("DONE!");
+
+}
+
+void CopyIndala224toT55x7(int uid1, int uid2, int uid3, int uid4, int uid5, int uid6, int uid7)
+{
+
+ //Program the 7 data blocks for supplied 224bit UID
+ // and the block 0 for Indala224 format
+ T55xxWriteBlock(uid1,1);
+ T55xxWriteBlock(uid2,2);
+ T55xxWriteBlock(uid3,3);
+ T55xxWriteBlock(uid4,4);
+ T55xxWriteBlock(uid5,5);
+ T55xxWriteBlock(uid6,6);
+ T55xxWriteBlock(uid7,7);
+ //Config for Indala (RF/32;PSK1 with RF/2;Maxblock=7)
+ T55xxWriteBlock(T55x7_BITRATE_RF_32 |
+ T55x7_MODULATION_PSK1 |
+ 7 << T55x7_MAXBLOCK_SHIFT,
+ 0);
+ //Alternative config for Indala (Extended mode;RF/32;PSK1 with RF/2;Maxblock=7;Inverse data)
+// T5567WriteBlock(0x603E10E2,0);
+
+ DbpString("DONE!");
+
+}
projects / proxmark3-svn / blobdiff