X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/488d309804afbf92e0e2ebba7e80612e84edca21..5bce72d5e3b5921ac7d8f08eeaa406fd2a53d4b0:/client/cmdlfparadox.c

diff --git a/client/cmdlfparadox.c b/client/cmdlfparadox.c
new file mode 100644
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--- /dev/null
+++ b/client/cmdlfparadox.c
@@ -0,0 +1,97 @@
+//-----------------------------------------------------------------------------
+//
+// 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 Paradox tag commands
+//-----------------------------------------------------------------------------
+#include <stdio.h>
+#include <string.h>
+#include <inttypes.h>
+#include "cmdlfparadox.h"
+#include "proxmark3.h"
+#include "ui.h"
+#include "util.h"
+#include "graph.h"
+#include "cmdparser.h"
+#include "cmddata.h"
+#include "cmdlf.h"
+#include "lfdemod.h"
+static int CmdHelp(const char *Cmd);
+
+//by marshmellow
+//Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded)
+//print full Paradox Prox ID and some bit format details if found
+int CmdFSKdemodParadox(const char *Cmd)
+{
+	//raw fsk demod no manchester decoding no start bit finding just get binary from wave
+	uint32_t hi2=0, hi=0, lo=0;
+
+	uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+	size_t BitLen = getFromGraphBuf(BitStream);
+	if (BitLen==0) return 0;
+	//get binary from fsk wave
+	int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
+	if (idx<0){
+		if (g_debugMode){
+			if (idx==-1){
+				PrintAndLog("DEBUG: Just Noise Detected");     
+			} else if (idx == -2) {
+				PrintAndLog("DEBUG: Error demoding fsk");
+			} else if (idx == -3) {
+				PrintAndLog("DEBUG: Preamble not found");
+			} else if (idx == -4) {
+				PrintAndLog("DEBUG: Error in Manchester data");
+			} else {
+				PrintAndLog("DEBUG: Error demoding fsk %d", idx);
+			}
+		}
+		return 0;
+	}
+	if (hi2==0 && hi==0 && lo==0){
+		if (g_debugMode) PrintAndLog("DEBUG: Error - no value found");
+		return 0;
+	}
+	uint32_t fc = ((hi & 0x3)<<6) | (lo>>26);
+	uint32_t cardnum = (lo>>10)&0xFFFF;
+	uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
+	uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
+	uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
+
+	PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x",
+		hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo);
+	setDemodBuf(BitStream,BitLen,idx);
+	if (g_debugMode){ 
+		PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen);
+		printDemodBuff();
+	}
+	return 1;
+}
+//by marshmellow
+//see ASKDemod for what args are accepted
+int CmdParadoxRead(const char *Cmd) {
+	// read lf silently
+	CmdLFRead("s");
+	// get samples silently
+	getSamples("10000",false);
+	// demod and output viking ID	
+	return CmdFSKdemodParadox(Cmd);
+}
+
+static command_t CommandTable[] = {
+	{"help",  CmdHelp,            1, "This help"},
+	{"demod", CmdFSKdemodParadox, 1, "Demodulate a Paradox FSK tag from the GraphBuffer"},
+	{"read",  CmdParadoxRead,     0, "Attempt to read and Extract tag data from the antenna"},
+	{NULL, NULL, 0, NULL}
+};
+
+int CmdLFParadox(const char *Cmd) {
+	CmdsParse(CommandTable, Cmd);
+	return 0;
+}
+
+int CmdHelp(const char *Cmd) {
+	CmdsHelp(CommandTable);
+	return 0;
+}