X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/31e8a4f21b7aeaada71bacffb45bdd2d5e70825f..6923d3f14ff7c6439d708470f4da2edcc3eca854:/client/cmdlfpyramid.c

diff --git a/client/cmdlfpyramid.c b/client/cmdlfpyramid.c
new file mode 100644
index 00000000..990dccbb
--- /dev/null
+++ b/client/cmdlfpyramid.c
@@ -0,0 +1,185 @@
+//-----------------------------------------------------------------------------
+//
+// 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 Farpointe/Pyramid tag to a T55x7 tag.");
+	PrintAndLog("The facility-code is 8-bit and the card number is 16-bit.  Larger values are truncated. ");
+	PrintAndLog("Currently work only on 26bit");
+	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 Farpointe/Pyramid card with specified card number.");
+	PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
+	PrintAndLog("The facility-code is 8-bit and the card number is 16-bit.  Larger values are truncated.");
+	PrintAndLog("Currently work only on 26bit");
+	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;
+}
+
+// Works for 26bits.
+int GetPyramidBits(uint32_t fc, uint32_t cn, uint8_t *pyramidBits) {
+
+	uint8_t pre[128];
+	memset(pre, 0x00, sizeof(pre));
+
+	// format start bit
+	pre[79] = 1;
+	
+	// Get 26 wiegand from FacilityCode, CardNumber	
+	uint8_t wiegand[24];
+	memset(wiegand, 0x00, sizeof(wiegand));
+	num_to_bytebits(fc, 8, wiegand);
+	num_to_bytebits(cn, 16, wiegand+8);
+
+	// add wiegand parity bits (dest, source, len)
+	wiegand_add_parity(pre+80, wiegand, 24);
+	
+	// add paritybits	(bitsource, dest, sourcelen, paritylen, parityType (odd, even,)
+	addParity(pre+8, pyramidBits+8, 102, 8, 1);
+
+	// add checksum		
+	uint8_t csBuff[13];
+	for (uint8_t i = 0; i < 13; i++)
+		csBuff[i] = bytebits_to_byte(pyramidBits + 16 + (i*8), 8);
+
+	uint32_t crc = CRC8Maxim(csBuff, 13);
+	num_to_bytebits(crc, 8, pyramidBits+120);
+	return 1;
+}
+
+int CmdPyramidRead(const char *Cmd) {
+	CmdLFRead("s");
+	getSamples("30000",false);
+	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, fc = 0, cn = 0;
+	uint32_t blocks[5];
+	uint8_t i;
+	uint8_t bs[128];
+	memset(bs, 0x00, sizeof(bs));
+
+	if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_pyramid_clone();
+
+	facilitycode = (fc & 0x000000FF);
+	cardnumber = (cn & 0x0000FFFF);
+	
+	if ( !GetPyramidBits(facilitycode, cardnumber, bs)) {
+		PrintAndLog("Error with tag bitstream generation.");
+		return 1;
+	}	
+
+//	if (param_getchar(Cmd, 3) == 'Q' || param_getchar(Cmd, 3) == 'q')
+//		blocks[0] = T5555_MODULATION_FSK2 | 50<<T5555_BITRATE_SHIFT | 4<<T5555_MAXBLOCK_SHIFT;
+
+	//Pyramid - compat mode, FSK2a, data rate 50, 4 data blocks
+	blocks[0] = T55x7_MODULATION_FSK2a | T55x7_BITRATE_RF_50 | 4<<T55x7_MAXBLOCK_SHIFT;
+	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 Farpointe/Pyramid to T55x7 with Facility Code: %u, Card Number: %u", facilitycode, cardnumber);
+	PrintAndLog("Blk | Data ");
+	PrintAndLog("----+------------");
+	for ( i = 0; i<5; ++i )
+		PrintAndLog(" %02d | %08" PRIx32, i, blocks[i]);
+
+	UsbCommand resp;
+	UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};
+
+	for ( 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) {
+
+	char cmdp = param_getchar(Cmd, 0);
+	if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_pyramid_sim();
+
+	uint32_t facilitycode = 0, cardnumber = 0, fc = 0, cn = 0;
+	
+	uint8_t bs[128];
+	size_t size = sizeof(bs);
+	memset(bs, 0x00, size);
+	
+	// Pyramid uses:  fcHigh: 10, fcLow: 8, clk: 50, invert: 0
+	uint64_t arg1, arg2;
+	arg1 = (10 << 8) + 8;
+	arg2 = 50 | 0;
+
+	if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_pyramid_sim();
+
+	facilitycode = (fc & 0x000000FF);
+	cardnumber = (cn & 0x0000FFFF);
+	
+	if ( !GetPyramidBits(facilitycode, cardnumber, bs)) {
+		PrintAndLog("Error with tag bitstream generation.");
+		return 1;
+	}	
+
+	PrintAndLog("Simulating Farpointe/Pyramid - Facility Code: %u, CardNumber: %u", facilitycode, cardnumber );
+	
+	UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};
+	memcpy(c.d.asBytes, bs, size);
+	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;
+}