// s = format start bit, o = odd parity of last 7 bits
// f = facility code, c = card number
// w = wiegand parity, x = extra space for other formats
- // p = unknown checksum
+ // p = CRC8maxim checksum
// (26 bit format shown)
//get bytes for checksum calc
// s = format start bit, o = odd parity of last 7 bits
// f = facility code, c = card number
// w = wiegand parity, x = extra space for other formats
- // p = unknown checksum
+ // p = CRC8-Maxim checksum
// (26 bit format shown)
//find start bit to get fmtLen
int j;
- for (j=0; j<size; j++){
+ for (j=0; j < size; ++j){
if(BitStream[j]) break;
}
+
uint8_t fmtLen = size-j-8;
uint32_t fc = 0;
uint32_t cardnum = 0;
uint32_t code1 = 0;
- if (fmtLen==26){
+
+ if ( fmtLen == 26 ){
fc = bytebits_to_byte(BitStream+73, 8);
cardnum = bytebits_to_byte(BitStream+81, 16);
code1 = bytebits_to_byte(BitStream+72,fmtLen);
PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi3, rawHi2, rawHi, rawLo);
- } else if (fmtLen==45){
- fmtLen=42; //end = 10 bits not 7 like 26 bit fmt
+ } else if (fmtLen == 45) {
+ fmtLen = 42; //end = 10 bits not 7 like 26 bit fmt
fc = bytebits_to_byte(BitStream+53, 10);
cardnum = bytebits_to_byte(BitStream+63, 32);
PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
} else {
cardnum = bytebits_to_byte(BitStream+81, 16);
- if (fmtLen>32){
- //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32);
- //code2 = bytebits_to_byte(BitStream+(size-32),32);
+ if (fmtLen > 32)
PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
- } else{
- //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen);
+ else
PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
- }
}
if (checksum == checkCS)
PrintAndLog("Checksum %02x passed", checksum);
--- /dev/null
+//-----------------------------------------------------------------------------
+//
+// 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.
+//-----------------------------------------------------------------------------
+// Low frequency Farpoint / Pyramid tag commands
+//-----------------------------------------------------------------------------
+#include <string.h>
+#include <inttypes.h>
+#include "cmdlfpyramid.h"
+static int CmdHelp(const char *Cmd);
+
+int usage_lf_pyramid_clone(void){
+ PrintAndLog("clone a Farepointe/Pyramid tag to a T55x7 tag.");
+ PrintAndLog("Per pyramid format, the facility-code is 8-bit and the card number is 16-bit. Larger values are truncated.");
+ PrintAndLog("");
+ PrintAndLog("Usage: lf pyramid clone <Facility-Code> <Card-Number>");
+ PrintAndLog("Options :");
+ PrintAndLog(" <Facility-Code> : 8-bit value facility code");
+ PrintAndLog(" <Card Number> : 16-bit value card number");
+ PrintAndLog("");
+ PrintAndLog("Sample : lf pyramid clone 123 11223");
+ return 0;
+}
+
+int usage_lf_pyramid_sim(void) {
+ PrintAndLog("Enables simulation of Farepointe/Pyramid card with specified card number.");
+ PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
+ PrintAndLog("Per pyramid format, the facility-code is 8-bit and the card number is 16-bit. Larger values are truncated.");
+ PrintAndLog("");
+ PrintAndLog("Usage: lf pyramid sim <Card-Number>");
+ PrintAndLog("Options :");
+ PrintAndLog(" <Facility-Code> : 8-bit value facility code");
+ PrintAndLog(" <Card Number> : 16-bit value card number");
+ PrintAndLog("");
+ PrintAndLog("Sample : lf pyramid sim 123 11223");
+ return 0;
+}
+
+// calc checksum
+int GetWiegandFromPyramid(const char *id, uint32_t *fc, uint32_t *cn) {
+ return 0;
+}
+
+int GetPyramidBits(uint32_t fc, uint32_t cn, uint8_t *pyramidBits) {
+
+ uint8_t pre[128];
+ memset(pre, 0x00, sizeof(pre));
+
+ // add preamble
+ pyramidBits[7]=1;
+ num_to_bytebits(26, 8, pre);
+
+ // get wiegand
+ uint8_t wiegand[24];
+ num_to_bytebits(fc, 8, wiegand);
+ num_to_bytebits(cn, 16, wiegand+8);
+
+ // add wiegand parity bits
+ wiegand_add_parity(pre+8, wiegand, 24);
+
+ // add paritybits
+ addParity(pre, pyramidBits+8, 66, 4, 1);
+
+ // add checksum
+ // this is wrong.
+ uint32_t crc = CRC8Maxim(wiegand, 13);
+ num_to_bytebits(crc, 8, pre+120);
+
+ return 1;
+}
+
+int CmdPyramidRead(const char *Cmd) {
+ // read lf silently
+ CmdLFRead("s");
+ // get samples silently
+ getSamples("30000",false);
+ // demod and output Pyramid ID
+ return CmdFSKdemodPyramid("");
+}
+
+int CmdPyramidClone(const char *Cmd) {
+
+ char cmdp = param_getchar(Cmd, 0);
+ if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_pyramid_clone();
+
+ uint32_t facilitycode=0, cardnumber=0;
+ uint8_t bits[128];
+ uint8_t *bs = bits;
+ memset(bs,0,sizeof(bits));
+ //Pyramid - compat mode, FSK2a, data rate 50, 4 data blocks
+ uint32_t blocks[5] = {T55x7_MODULATION_FSK2a | T55x7_BITRATE_RF_50 | 4<<T55x7_MAXBLOCK_SHIFT, 0, 0, 0, 0};
+
+// if (param_getchar(Cmd, 3) == 'Q' || param_getchar(Cmd, 3) == 'q')
+// blocks[0] = T5555_MODULATION_FSK2 | 50<<T5555_BITRATE_SHIFT | 4<<T5555_MAXBLOCK_SHIFT;
+
+ // get wiegand from printed number.
+ GetWiegandFromPyramid(Cmd, &facilitycode, &cardnumber);
+
+ if ((facilitycode & 0xFF) != facilitycode) {
+ facilitycode &= 0xFF;
+ PrintAndLog("Facility Code Truncated to 8-bits (Pyramid): %u", facilitycode);
+ }
+
+ if ((cardnumber & 0xFFFF) != cardnumber) {
+ cardnumber &= 0xFFFF;
+ PrintAndLog("Card Number Truncated to 16-bits (Pyramid): %u", cardnumber);
+ }
+
+ if ( !GetPyramidBits(facilitycode, cardnumber, bs)) {
+ PrintAndLog("Error with tag bitstream generation.");
+ return 1;
+ }
+
+ blocks[1] = bytebits_to_byte(bs,32);
+ blocks[2] = bytebits_to_byte(bs+32,32);
+ blocks[3] = bytebits_to_byte(bs+64,32);
+ blocks[4] = bytebits_to_byte(bs+96,32);
+
+ PrintAndLog("Preparing to clone Farepointe/Pyramid to T55x7 with Facility Code: %u, Card Number: %u", facilitycode, cardnumber);
+ PrintAndLog("Blk | Data ");
+ PrintAndLog("----+------------");
+ for ( uint8_t i=0; i<5; ++i )
+ PrintAndLog(" %02d | 0x%08x",i , blocks[i]);
+
+ UsbCommand resp;
+ //UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};
+
+ for ( uint8_t i=0; i<5; ++i ) {
+ //c.arg[0] = blocks[i];
+ //c.arg[1] = i;
+ clearCommandBuffer();
+ // SendCommand(&c);
+ if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){
+ PrintAndLog("Error occurred, device did not respond during write operation.");
+ return -1;
+ }
+ }
+ return 0;
+}
+
+int CmdPyramidSim(const char *Cmd) {
+ // uint32_t id = 0;
+ // uint64_t rawID = 0;
+ // uint8_t clk = 50, encoding = 1, separator = 0, invert = 0;
+
+ char cmdp = param_getchar(Cmd, 0);
+ if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_pyramid_sim();
+
+ // id = param_get32ex(Cmd, 0, 0, 16);
+ // if (id == 0) return usage_lf_pyramid_sim();
+
+ //rawID = getPyramidBits(id);
+
+ // uint16_t arg1, arg2;
+ // size_t size = 64;
+ // arg1 = clk << 8 | encoding;
+ // arg2 = invert << 8 | separator;
+
+ // PrintAndLog("Simulating - ID: %08X, Raw: %08X%08X",id,(uint32_t)(rawID >> 32),(uint32_t) (rawID & 0xFFFFFFFF));
+
+ // UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};
+ // num_to_bytebits(rawID, size, c.d.asBytes);
+ // clearCommandBuffer();
+ // SendCommand(&c);
+ return 0;
+}
+
+static command_t CommandTable[] = {
+ {"help", CmdHelp, 1, "This help"},
+ {"read", CmdPyramidRead, 0, "Attempt to read and extract tag data"},
+ {"clone", CmdPyramidClone, 0, "<Facility-Code> <Card Number> clone pyramid tag"},
+ {"sim", CmdPyramidSim, 0, "<Facility-Code> <Card Number> simulate pyramid tag"},
+ {NULL, NULL, 0, NULL}
+};
+
+int CmdLFPyramid(const char *Cmd) {
+ clearCommandBuffer();
+ CmdsParse(CommandTable, Cmd);
+ return 0;
+}
+
+int CmdHelp(const char *Cmd) {
+ CmdsHelp(CommandTable);
+ return 0;
+}
projects / proxmark3-svn / commitdiff