]> git.zerfleddert.de Git - proxmark3-svn/blobdiff - armsrc/lfops.c
target and bitstream back to front!
[proxmark3-svn] / armsrc / lfops.c
index e4ebacb02d8ad2219f46aa647833f1a56ca4d87a..5ef01dcf2536d545debd99f82fb2f0c748f69229 100644 (file)
@@ -1,15 +1,21 @@
 //-----------------------------------------------------------------------------
+// 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"
 #include "hitag2.h"
 #include "crc16.h"
+#include "string.h"
 
-void AcquireRawAdcSamples125k(BOOL at134khz)
+void AcquireRawAdcSamples125k(int at134khz)
 {
        if (at134khz)
                FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 88); //134.8Khz
@@ -34,7 +40,7 @@ void AcquireRawAdcSamples125k(BOOL at134khz)
 // split into two routines so we can avoid timing issues after sending commands //
 void DoAcquisition125k(void)
 {
-       BYTE *dest = (BYTE *)BigBuf;
+       uint8_t *dest = (uint8_t *)BigBuf;
        int n = sizeof(BigBuf);
        int i;
 
@@ -46,7 +52,7 @@ void DoAcquisition125k(void)
                        LED_D_ON();
                }
                if (AT91C_BASE_SSC->SSC_SR & AT91C_SSC_RXRDY) {
-                       dest[i] = (BYTE)AT91C_BASE_SSC->SSC_RHR;
+                       dest[i] = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
                        i++;
                        LED_D_OFF();
                        if (i >= n) break;
@@ -56,9 +62,9 @@ void DoAcquisition125k(void)
                        dest[0], dest[1], dest[2], dest[3], dest[4], dest[5], dest[6], dest[7]);
 }
 
-void ModThenAcquireRawAdcSamples125k(int delay_off, int period_0, int period_1, BYTE *command)
+void ModThenAcquireRawAdcSamples125k(int delay_off, int period_0, int period_1, uint8_t *command)
 {
-       BOOL at134khz;
+       int at134khz;
 
        /* Make sure the tag is reset */
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
@@ -141,13 +147,13 @@ void ReadTItag(void)
 //     int n = GraphTraceLen;
 
        // 128 bit shift register [shift3:shift2:shift1:shift0]
-       DWORD shift3 = 0, shift2 = 0, shift1 = 0, shift0 = 0;
+       uint32_t shift3 = 0, shift2 = 0, shift1 = 0, shift0 = 0;
 
        int i, cycles=0, samples=0;
        // how many sample points fit in 16 cycles of each frequency
-       DWORD sampleslo = (FSAMPLE<<4)/FREQLO, sampleshi = (FSAMPLE<<4)/FREQHI;
+       uint32_t sampleslo = (FSAMPLE<<4)/FREQLO, sampleshi = (FSAMPLE<<4)/FREQHI;
        // when to tell if we're close enough to one freq or another
-       DWORD threshold = (sampleslo - sampleshi + 1)>>1;
+       uint32_t threshold = (sampleslo - sampleshi + 1)>>1;
 
        // TI tags charge at 134.2Khz
        FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 88); //134.8Khz
@@ -236,7 +242,7 @@ void ReadTItag(void)
                // i'm 99% sure the crc algorithm is correct, but it may need to eat the
                // bytes in reverse or something
                // calculate CRC
-               DWORD crc=0;
+               uint32_t crc=0;
 
                crc = update_crc16(crc, (shift0)&0xff);
                crc = update_crc16(crc, (shift0>>8)&0xff);
@@ -257,7 +263,7 @@ void ReadTItag(void)
        }
 }
 
-void WriteTIbyte(BYTE b)
+void WriteTIbyte(uint8_t b)
 {
        int i = 0;
 
@@ -286,7 +292,7 @@ void AcquireTiType(void)
 {
        int i, j, n;
        // tag transmission is <20ms, sampling at 2M gives us 40K samples max
-       // each sample is 1 bit stuffed into a DWORD so we need 1250 DWORDS
+       // each sample is 1 bit stuffed into a uint32_t so we need 1250 uint32_t
        #define TIBUFLEN 1250
 
        // clear buffer
@@ -355,7 +361,7 @@ void AcquireTiType(void)
 // arguments: 64bit data split into 32bit idhi:idlo and optional 16bit crc
 // if crc provided, it will be written with the data verbatim (even if bogus)
 // if not provided a valid crc will be computed from the data and written.
-void WriteTItag(DWORD idhi, DWORD idlo, WORD crc)
+void WriteTItag(uint32_t idhi, uint32_t idlo, uint16_t crc)
 {
        if(crc == 0) {
                crc = update_crc16(crc, (idlo)&0xff);
@@ -426,7 +432,7 @@ void WriteTItag(DWORD idhi, DWORD idlo, WORD crc)
 void SimulateTagLowFrequency(int period, int gap, int ledcontrol)
 {
        int i;
-       BYTE *tab = (BYTE *)BigBuf;
+       uint8_t *tab = (uint8_t *)BigBuf;
 
        FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_SIMULATOR);
 
@@ -537,7 +543,7 @@ void SimulateTagLowFrequencyBidir(int divisor, int t0)
        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_BASE_TC1->TC_CMR =        AT91C_TC_CLKS_TIMER_DIV1_CLOCK |
                                                                AT91C_TC_ETRGEDG_RISING |
                                                                AT91C_TC_ABETRG |
                                                                AT91C_TC_LDRA_RISING |
@@ -673,7 +679,7 @@ static void hitag_handle_frame(int t0, int frame_len, char *frame)
 
 // compose fc/8 fc/10 waveform
 static void fc(int c, int *n) {
-       BYTE *dest = (BYTE *)BigBuf;
+       uint8_t *dest = (uint8_t *)BigBuf;
        int idx;
 
        // for when we want an fc8 pattern every 4 logical bits
@@ -778,9 +784,9 @@ void CmdHIDsimTAG(int hi, int lo, int ledcontrol)
 // loop to capture raw HID waveform then FSK demodulate the TAG ID from it
 void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
 {
-       BYTE *dest = (BYTE *)BigBuf;
+       uint8_t *dest = (uint8_t *)BigBuf;
        int m=0, n=0, i=0, idx=0, found=0, lastval=0;
-       DWORD hi=0, lo=0;
+       uint32_t hi=0, lo=0;
 
        FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz
        FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER);
@@ -815,7 +821,7 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
                                        LED_D_ON();
                        }
                        if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
-                               dest[i] = (BYTE)AT91C_BASE_SSC->SSC_RHR;
+                               dest[i] = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
                                // we don't care about actual value, only if it's more or less than a
                                // threshold essentially we capture zero crossings for later analysis
                                if(dest[i] < 127) dest[i] = 0; else dest[i] = 1;
@@ -969,3 +975,300 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
                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!");
+
+}
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