// Data and Graph commands
//-----------------------------------------------------------------------------
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <limits.h>
-#include "proxmark3.h"
-#include "data.h"
-#include "ui.h"
-#include "graph.h"
-#include "cmdparser.h"
+#include <stdio.h> // also included in util.h
+#include <string.h> // also included in util.h
+#include <inttypes.h>
+#include <limits.h> // for CmdNorm INT_MIN && INT_MAX
+#include "data.h" // also included in util.h
+#include "cmddata.h"
#include "util.h"
#include "cmdmain.h"
-#include "cmddata.h"
-#include "lfdemod.h"
-#include "usb_cmd.h"
-#include "crc.h"
+#include "proxmark3.h"
+#include "ui.h" // for show graph controls
+#include "graph.h" // for graph data
+#include "cmdparser.h"// already included in cmdmain.h
+#include "usb_cmd.h" // already included in cmdmain.h and proxmark3.h
+#include "lfdemod.h" // for demod code
+#include "crc.h" // for pyramid checksum maxim
+#include "crc16.h" // for FDXB demod checksum
+#include "loclass/cipherutils.h" // for decimating samples in getsamples
uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
-uint8_t g_debugMode;
-int DemodBufferLen;
+uint8_t g_debugMode=0;
+size_t DemodBufferLen=0;
static int CmdHelp(const char *Cmd);
//set the demod buffer with given array of binary (one bit per byte)
return 1;
}
+int usage_data_printdemodbuf(){
+ PrintAndLog("Usage: data printdemodbuffer x o <offset> l <length>");
+ PrintAndLog("Options: ");
+ PrintAndLog(" h This help");
+ PrintAndLog(" x output in hex (omit for binary output)");
+ PrintAndLog(" o <offset> enter offset in # of bits");
+ PrintAndLog(" l <length> enter length to print in # of bits or hex characters respectively");
+ return 0;
+}
+
//by marshmellow
void printDemodBuff(void)
{
int CmdPrintDemodBuff(const char *Cmd)
{
- char hex;
- char printBuff[512]={0x00};
- uint8_t numBits = DemodBufferLen & 0xFFFC;
- sscanf(Cmd, "%c", &hex);
- if (hex == 'h'){
- PrintAndLog("Usage: data printdemodbuffer [x]");
- PrintAndLog("Options: ");
- PrintAndLog(" h This help");
- PrintAndLog(" x output in hex (omit for binary output)");
- return 0;
+ char hex[512]={0x00};
+ bool hexMode = false;
+ bool errors = false;
+ uint32_t offset = 0; //could be size_t but no param_get16...
+ uint32_t length = 512;
+ char cmdp = 0;
+ while(param_getchar(Cmd, cmdp) != 0x00)
+ {
+ switch(param_getchar(Cmd, cmdp))
+ {
+ case 'h':
+ case 'H':
+ return usage_data_printdemodbuf();
+ case 'x':
+ case 'X':
+ hexMode = true;
+ cmdp++;
+ break;
+ case 'o':
+ case 'O':
+ offset = param_get32ex(Cmd, cmdp+1, 0, 10);
+ if (!offset) errors = true;
+ cmdp += 2;
+ break;
+ case 'l':
+ case 'L':
+ length = param_get32ex(Cmd, cmdp+1, 512, 10);
+ if (!length) errors = true;
+ cmdp += 2;
+ break;
+ default:
+ PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+ errors = true;
+ break;
+ }
+ if(errors) break;
}
- if (hex == 'x'){
- numBits = binarraytohex(printBuff, (char *)DemodBuffer, numBits);
+ //Validations
+ if(errors) return usage_data_printdemodbuf();
+ length = (length > (DemodBufferLen-offset)) ? DemodBufferLen-offset : length;
+ int numBits = (length) & 0x00FFC; //make sure we don't exceed our string
+
+ if (hexMode){
+ char *buf = (char *) (DemodBuffer + offset);
+ numBits = (numBits > sizeof(hex)) ? sizeof(hex) : numBits;
+ numBits = binarraytohex(hex, buf, numBits);
if (numBits==0) return 0;
- PrintAndLog("DemodBuffer: %s",printBuff);
+ PrintAndLog("DemodBuffer: %s",hex);
} else {
- printDemodBuff();
+ PrintAndLog("DemodBuffer:\n%s", sprint_bin_break(DemodBuffer+offset,numBits,16));
}
return 1;
}
}
if (hi){
//output 88 bit em id
- PrintAndLog("\nEM TAG ID : %06X%016llX", hi, id);
+ PrintAndLog("\nEM TAG ID : %06X%016" PRIX64, hi, id);
} else{
//output 40 bit em id
- PrintAndLog("\nEM TAG ID : %010llX", id);
- PrintAndLog("Unique TAG ID : %010llX", id2lo);
+ PrintAndLog("\nEM TAG ID : %010" PRIX64, id);
PrintAndLog("\nPossible de-scramble patterns");
+ PrintAndLog("Unique TAG ID : %010" PRIX64, id2lo);
PrintAndLog("HoneyWell IdentKey {");
- PrintAndLog("DEZ 8 : %08lld",id & 0xFFFFFF);
- PrintAndLog("DEZ 10 : %010lld",id & 0xFFFFFFFF);
- PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id>>16LL) & 0xFFFF,(id & 0xFFFF));
- PrintAndLog("DEZ 3.5A : %03lld.%05lld",(id>>32ll),(id & 0xFFFF));
- PrintAndLog("DEZ 3.5B : %03lld.%05lld",(id & 0xFF000000) >> 24,(id & 0xFFFF));
- PrintAndLog("DEZ 3.5C : %03lld.%05lld",(id & 0xFF0000) >> 16,(id & 0xFFFF));
- PrintAndLog("DEZ 14/IK2 : %014lld",id);
- PrintAndLog("DEZ 15/IK3 : %015lld",id2lo);
- PrintAndLog("DEZ 20/ZK : %02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld",
+ PrintAndLog("DEZ 8 : %08" PRIu64,id & 0xFFFFFF);
+ PrintAndLog("DEZ 10 : %010" PRIu64,id & 0xFFFFFFFF);
+ PrintAndLog("DEZ 5.5 : %05lld.%05" PRIu64,(id>>16LL) & 0xFFFF,(id & 0xFFFF));
+ PrintAndLog("DEZ 3.5A : %03lld.%05" PRIu64,(id>>32ll),(id & 0xFFFF));
+ PrintAndLog("DEZ 3.5B : %03lld.%05" PRIu64,(id & 0xFF000000) >> 24,(id & 0xFFFF));
+ PrintAndLog("DEZ 3.5C : %03lld.%05" PRIu64,(id & 0xFF0000) >> 16,(id & 0xFFFF));
+ PrintAndLog("DEZ 14/IK2 : %014" PRIu64,id);
+ PrintAndLog("DEZ 15/IK3 : %015" PRIu64,id2lo);
+ PrintAndLog("DEZ 20/ZK : %02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64,
(id2lo & 0xf000000000) >> 36,
(id2lo & 0x0f00000000) >> 32,
(id2lo & 0x00f0000000) >> 28,
(id2lo & 0x000000000f)
);
uint64_t paxton = (((id>>32) << 24) | (id & 0xffffff)) + 0x143e00;
- PrintAndLog("}\nOther : %05lld_%03lld_%08lld",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF));
- PrintAndLog("Pattern Paxton : %lld [0x%llX]", paxton, paxton);
+ PrintAndLog("}\nOther : %05" PRIu64 "_%03" PRIu64 "_%08" PRIu64 "",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF));
+ PrintAndLog("Pattern Paxton : %" PRIu64 " [0x%" PRIX64 "]", paxton, paxton);
uint32_t p1id = (id & 0xFFFFFF);
uint8_t arr[32] = {0x00};
return;
}
-
-int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo)
+int AskEm410xDecode(bool verbose, uint32_t *hi, uint64_t *lo )
{
- int ans = ASKmanDemod(Cmd, FALSE, FALSE);
- if (!ans) return 0;
-
- size_t idx=0;
- if (Em410xDecode(DemodBuffer,(size_t *) &DemodBufferLen, &idx, hi, lo)){
+ size_t idx = 0;
+ size_t BitLen = DemodBufferLen;
+ uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+ memcpy(BitStream, DemodBuffer, BitLen);
+ if (Em410xDecode(BitStream, &BitLen, &idx, hi, lo)){
+ //set GraphBuffer for clone or sim command
+ setDemodBuf(BitStream, BitLen, idx);
if (g_debugMode){
- PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, DemodBufferLen);
+ PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
printDemodBuff();
}
+ if (verbose){
+ PrintAndLog("EM410x pattern found: ");
+ printEM410x(*hi, *lo);
+ }
return 1;
}
return 0;
}
+
+int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo, bool verbose)
+{
+ bool st = true;
+ if (!ASKDemod_ext(Cmd, false, false, 1, &st)) return 0;
+ return AskEm410xDecode(verbose, hi, lo);
+}
+
//by marshmellow
//takes 3 arguments - clock, invert and maxErr as integers
//attempts to demodulate ask while decoding manchester
PrintAndLog(" : data askem410xdemod 64 1 0 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/64 and inverting data and allowing 0 demod errors");
return 0;
}
- uint32_t hi = 0;
uint64_t lo = 0;
- if (AskEm410xDemod(Cmd, &hi, &lo)) {
- PrintAndLog("EM410x pattern found: ");
- printEM410x(hi, lo);
- return 1;
- }
- return 0;
+ uint32_t hi = 0;
+ return AskEm410xDemod(Cmd, &hi, &lo, true);
}
-int ASKmanDemod(const char *Cmd, bool verbose, bool emSearch)
-{
+//by marshmellow
+//Cmd Args: Clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
+// (amp may not be needed anymore)
+//verbose will print results and demoding messages
+//emSearch will auto search for EM410x format in bitstream
+//askType switches decode: ask/raw = 0, ask/manchester = 1
+int ASKDemod_ext(const char *Cmd, bool verbose, bool emSearch, uint8_t askType, bool *stCheck) {
int invert=0;
int clk=0;
int maxErr=100;
- int maxLen=512*64;
- //param_getdec(Cmd, 0, &clk);
- //param_getdec(Cmd, 1, &invert);
- //maxErr = param_get32ex(Cmd, 2, 0xFFFFFFFF, 10);
- //if (maxErr == 0xFFFFFFFF) maxErr=100;
+ int maxLen=0;
+ uint8_t askamp = 0;
+ char amp = param_getchar(Cmd, 0);
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
- sscanf(Cmd, "%i %i %i %i", &clk, &invert, &maxErr, &maxLen);
+ sscanf(Cmd, "%i %i %i %i %c", &clk, &invert, &maxErr, &maxLen, &);
+ if (!maxLen) maxLen = BIGBUF_SIZE;
if (invert != 0 && invert != 1) {
PrintAndLog("Invalid argument: %s", Cmd);
return 0;
}
size_t BitLen = getFromGraphBuf(BitStream);
if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen);
- if (!BitLen) return 0;
- if (maxLen<BitLen && maxLen != 0) BitLen = maxLen;
- int errCnt = askmandemod(BitStream, &BitLen, &clk, &invert, maxErr);
- if (errCnt<0||BitLen<16){ //if fatal error (or -1)
+ if (BitLen < 255) return 0;
+ if (maxLen < BitLen && maxLen != 0) BitLen = maxLen;
+ int foundclk = 0;
+ //amp before ST check
+ if (amp == 'a' || amp == 'A') {
+ askAmp(BitStream, BitLen);
+ }
+ bool st = false;
+ size_t ststart = 0, stend = 0;
+ if (*stCheck) st = DetectST_ext(BitStream, &BitLen, &foundclk, &ststart, &stend);
+ if (st) {
+ *stCheck = st;
+ clk = (clk == 0) ? foundclk : clk;
+ CursorCPos = ststart;
+ CursorDPos = stend;
+ if (verbose || g_debugMode) PrintAndLog("\nFound Sequence Terminator - First one is shown by orange and blue graph markers");
+ }
+ int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, askamp, askType);
+ if (errCnt<0 || BitLen<16){ //if fatal error (or -1)
if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
return 0;
}
- if (errCnt>maxErr){
+ if (errCnt > maxErr){
if (g_debugMode) PrintAndLog("DEBUG: Too many errors found, errors:%d, bits:%d, clock:%d",errCnt, BitLen, clk);
return 0;
}
if (verbose || g_debugMode) PrintAndLog("\nUsing Clock:%d, Invert:%d, Bits Found:%d",clk,invert,BitLen);
//output
- if (errCnt>0){
- if (verbose || g_debugMode) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
- }
- if (verbose || g_debugMode) PrintAndLog("ASK/Manchester decoded bitstream:");
- // Now output the bitstream to the scrollback by line of 16 bits
setDemodBuf(BitStream,BitLen,0);
- if (verbose || g_debugMode) printDemodBuff();
- uint64_t lo =0;
- uint32_t hi =0;
- size_t idx=0;
+ if (verbose || g_debugMode){
+ if (errCnt>0) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
+ if (askType) PrintAndLog("ASK/Manchester - Clock: %d - Decoded bitstream:",clk);
+ else PrintAndLog("ASK/Raw - Clock: %d - Decoded bitstream:",clk);
+ // Now output the bitstream to the scrollback by line of 16 bits
+ printDemodBuff();
+
+ }
+ uint64_t lo = 0;
+ uint32_t hi = 0;
if (emSearch){
- if (Em410xDecode(BitStream, &BitLen, &idx, &hi, &lo)){
- //set GraphBuffer for clone or sim command
- setDemodBuf(BitStream, BitLen, idx);
- if (g_debugMode){
- PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
- printDemodBuff();
- }
- if (verbose) PrintAndLog("EM410x pattern found: ");
- if (verbose) printEM410x(hi, lo);
- return 1;
- }
+ AskEm410xDecode(true, &hi, &lo);
}
return 1;
}
+int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType) {
+ bool st = false;
+ return ASKDemod_ext(Cmd, verbose, emSearch, askType, &st);
+}
//by marshmellow
-//takes 3 arguments - clock, invert, maxErr as integers
+//takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
//attempts to demodulate ask while decoding manchester
//prints binary found and saves in graphbuffer for further commands
int Cmdaskmandemod(const char *Cmd)
{
char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H') {
- PrintAndLog("Usage: data rawdemod am [clock] <0|1> [maxError] [setSmplLen]");
- PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
- PrintAndLog(" <invert>, 1 for invert output");
- PrintAndLog(" [set maximum allowed errors], default = 100.");
- PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64).");
+ if (strlen(Cmd) > 45 || cmdp == 'h' || cmdp == 'H') {
+ PrintAndLog("Usage: data rawdemod am <s> [clock] <invert> [maxError] [maxLen] [amplify]");
+ PrintAndLog(" ['s'] optional, check for Sequence Terminator");
+ PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
+ PrintAndLog(" <invert>, 1 to invert output");
+ PrintAndLog(" [set maximum allowed errors], default = 100");
+ PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)");
+ PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
PrintAndLog("");
PrintAndLog(" sample: data rawdemod am = demod an ask/manchester tag from GraphBuffer");
PrintAndLog(" : data rawdemod am 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32");
PrintAndLog(" : data rawdemod am 64 1 0 = demod an ask/manchester tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
return 0;
}
- return ASKmanDemod(Cmd, TRUE, TRUE);
+ bool st = true;
+ if (Cmd[0]=='s')
+ return ASKDemod_ext(Cmd++, true, true, 1, &st);
+ else if (Cmd[1] == 's')
+ return ASKDemod_ext(Cmd+=2, true, true, 1, &st);
+ else
+ return ASKDemod(Cmd, true, true, 1);
}
//by marshmellow
int i =0;
int errCnt=0;
size_t size=0;
- size_t maxErr = 20;
+ int invert=0;
+ int maxErr = 20;
char cmdp = param_getchar(Cmd, 0);
if (strlen(Cmd) > 5 || cmdp == 'h' || cmdp == 'H') {
- PrintAndLog("Usage: data manrawdecode [maxErr]");
+ PrintAndLog("Usage: data manrawdecode [invert] [maxErr]");
PrintAndLog(" Takes 10 and 01 and converts to 0 and 1 respectively");
PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
+ PrintAndLog(" [invert] invert output");
PrintAndLog(" [maxErr] set number of errors allowed (default = 20)");
PrintAndLog("");
PrintAndLog(" sample: data manrawdecode = decode manchester bitstream from the demodbuffer");
return 0;
}
- sscanf(Cmd, "%i", &maxErr);
+ sscanf(Cmd, "%i %i", &invert, &maxErr);
size=i;
- errCnt=manrawdecode(BitStream, &size);
+ errCnt=manrawdecode(BitStream, &size, invert);
if (errCnt>=maxErr){
PrintAndLog("Too many errors: %d",errCnt);
return 0;
return 1;
}
-//by marshmellow
-//takes 4 arguments - clock, invert, maxErr as integers and amplify as char
-//attempts to demodulate ask only
-//prints binary found and saves in graphbuffer for further commands
-int ASKrawDemod(const char *Cmd, bool verbose)
-{
- int invert=0;
- int clk=0;
- int maxErr=100;
- uint8_t askAmp = 0;
- char amp = param_getchar(Cmd, 0);
- uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
- sscanf(Cmd, "%i %i %i %c", &clk, &invert, &maxErr, &);
- if (invert != 0 && invert != 1) {
- if (verbose || g_debugMode) PrintAndLog("Invalid argument: %s", Cmd);
- return 0;
- }
- if (clk==1){
- invert=1;
- clk=0;
- }
- if (amp == 'a' || amp == 'A') askAmp=1;
- size_t BitLen = getFromGraphBuf(BitStream);
- if (BitLen==0) return 0;
- int errCnt = askrawdemod(BitStream, &BitLen, &clk, &invert, maxErr, askAmp);
- if (errCnt==-1||BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
- if (verbose || g_debugMode) PrintAndLog("no data found");
- if (g_debugMode) PrintAndLog("errCnt: %d, BitLen: %d, clk: %d, invert: %d", errCnt, BitLen, clk, invert);
- return 0;
- }
- if (errCnt>maxErr) {
- if (g_debugMode)
- PrintAndLog("Too many errors found, errCnt: %d, BitLen: %d, clk: %d, invert: %d", errCnt, BitLen, clk, invert);
- return 0;
- }
- if (verbose || g_debugMode)
- PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d", clk, invert, BitLen);
-
- //move BitStream back to DemodBuffer
- setDemodBuf(BitStream,BitLen,0);
-
- //output
- if (errCnt>0 && (verbose || g_debugMode)){
- PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d", errCnt);
- }
- if (verbose || g_debugMode){
- PrintAndLog("ASK demoded bitstream:");
- // Now output the bitstream to the scrollback by line of 16 bits
- printDemodBuff();
- }
- return 1;
-}
-
//by marshmellow
// - ASK Demod then Biphase decode GraphBuffer samples
int ASKbiphaseDemod(const char *Cmd, bool verbose)
{
//ask raw demod GraphBuffer first
- int offset=0, clk=0, invert=0, maxErr=0, ans=0;
- ans = sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr);
- if (ans>0)
- ans = ASKrawDemod(Cmd+1, FALSE);
- else
- ans = ASKrawDemod(Cmd, FALSE);
- if (!ans) {
- if (g_debugMode || verbose) PrintAndLog("Error AskrawDemod: %d", ans);
- return 0;
- }
-
- //attempt to Biphase decode DemodBuffer
- size_t size = DemodBufferLen;
- uint8_t BitStream[MAX_DEMOD_BUF_LEN];
- memcpy(BitStream, DemodBuffer, DemodBufferLen);
+ int offset=0, clk=0, invert=0, maxErr=0;
+ sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr);
+
+ uint8_t BitStream[MAX_DEMOD_BUF_LEN];
+ size_t size = getFromGraphBuf(BitStream);
+ //invert here inverts the ask raw demoded bits which has no effect on the demod, but we need the pointer
+ int errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
+ if ( errCnt < 0 || errCnt > maxErr ) {
+ if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk);
+ return 0;
+ }
- int errCnt = BiphaseRawDecode(BitStream, &size, offset, invert);
+ //attempt to Biphase decode BitStream
+ errCnt = BiphaseRawDecode(BitStream, &size, offset, invert);
if (errCnt < 0){
if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode: %d", errCnt);
return 0;
//success set DemodBuffer and return
setDemodBuf(BitStream, size, 0);
if (g_debugMode || verbose){
- PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset,errCnt);
+ PrintAndLog("Biphase Decoded using offset: %d - clock: %d - # errors:%d - data:",offset,clk,errCnt);
printDemodBuff();
}
return 1;
int Cmdaskbiphdemod(const char *Cmd)
{
char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 12 || cmdp == 'h' || cmdp == 'H') {
- PrintAndLog("Usage: data rawdemod ab [offset] [clock] <invert> [maxError] <amplify>");
+ if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') {
+ PrintAndLog("Usage: data rawdemod ab [offset] [clock] <invert> [maxError]
[maxLen] <amplify>");
PrintAndLog(" [offset], offset to begin biphase, default=0");
PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
PrintAndLog(" <invert>, 1 to invert output");
PrintAndLog(" [set maximum allowed errors], default = 100");
+ PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)");
PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
PrintAndLog(" NOTE: <invert> can be entered as second or third argument");
PrintAndLog(" NOTE: <amplify> can be entered as first, second or last argument");
PrintAndLog("");
PrintAndLog(" NOTE: --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester");
PrintAndLog("");
- PrintAndLog(" sample: data rawdemod ab = demod an ask/biph tag from GraphBuffer");
- PrintAndLog(" : data rawdemod ab a = demod an ask/biph tag from GraphBuffer, amplified");
- PrintAndLog(" : data rawdemod ab 1 32 = demod an ask/biph tag from GraphBuffer using an offset of 1 and a clock of RF/32");
- PrintAndLog(" : data rawdemod ab 0 32 1 = demod an ask/biph tag from GraphBuffer using a clock of RF/32 and inverting data");
- PrintAndLog(" : data rawdemod ab 0 1 = demod an ask/biph tag from GraphBuffer while inverting data");
- PrintAndLog(" : data rawdemod ab 0 64 1 0 = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
- PrintAndLog(" : data rawdemod ab 0 64 1 0 a = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp");
+ PrintAndLog(" sample: data rawdemod ab = demod an ask/biph tag from GraphBuffer");
+ PrintAndLog(" : data rawdemod ab 0 a = demod an ask/biph tag from GraphBuffer, amplified");
+ PrintAndLog(" : data rawdemod ab 1 32 = demod an ask/biph tag from GraphBuffer using an offset of 1 and a clock of RF/32");
+ PrintAndLog(" : data rawdemod ab 0 32 1 = demod an ask/biph tag from GraphBuffer using a clock of RF/32 and inverting data");
+ PrintAndLog(" : data rawdemod ab 0 1 = demod an ask/biph tag from GraphBuffer while inverting data");
+ PrintAndLog(" : data rawdemod ab 0 64 1 0 = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
+ PrintAndLog(" : data rawdemod ab 0 64 1 0 0 a = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp");
return 0;
}
- return ASKbiphaseDemod(Cmd, TRUE);
+ return ASKbiphaseDemod(Cmd, true);
}
//by marshmellow
//if successful it will push askraw data back to demod buffer ready for emulation
int CmdG_Prox_II_Demod(const char *Cmd)
{
- if (!ASKbiphaseDemod(Cmd, FALSE)){
- if (g_debugMode) PrintAndLog("ASKbiphaseDemod failed 1st try");
+ if (!ASKbiphaseDemod(Cmd, false)){
+ if (g_debugMode) PrintAndLog("Error gProxII: ASKbiphaseDemod failed 1st try");
return 0;
}
size_t size = DemodBufferLen;
if (g_debugMode) PrintAndLog("Error gProxII_Demod");
return 0;
}
- //got a good demod
- uint32_t ByteStream[65] = {0x00};
+ //got a good demod of 96 bits
+ uint8_t ByteStream[8] = {0x00};
uint8_t xorKey=0;
- uint8_t keyCnt=0;
- uint8_t bitCnt=0;
- uint8_t ByteCnt=0;
- size_t startIdx = ans + 6; //start after preamble
- for (size_t idx = 0; idx<size-6; idx++){
- if ((idx+1) % 5 == 0){
- //spacer bit - should be 0
- if (DemodBuffer[startIdx+idx] != 0) {
- if (g_debugMode) PrintAndLog("Error spacer not 0: %d, pos: %d",DemodBuffer[startIdx+idx],startIdx+idx);
- return 0;
- }
- continue;
- }
- if (keyCnt<8){ //lsb first
- xorKey = xorKey | (DemodBuffer[startIdx+idx]<<keyCnt);
- keyCnt++;
- if (keyCnt==8 && g_debugMode) PrintAndLog("xorKey Found: %02x", xorKey);
- continue;
- }
- //lsb first
- ByteStream[ByteCnt] = ByteStream[ByteCnt] | (DemodBuffer[startIdx+idx]<<bitCnt);
- bitCnt++;
- if (bitCnt % 8 == 0){
- if (g_debugMode) PrintAndLog("byte %d: %02x",ByteCnt,ByteStream[ByteCnt]);
- bitCnt=0;
- ByteCnt++;
- }
+ size_t startIdx = ans + 6; //start after 6 bit preamble
+
+ uint8_t bits_no_spacer[90];
+ //so as to not mess with raw DemodBuffer copy to a new sample array
+ memcpy(bits_no_spacer, DemodBuffer + startIdx, 90);
+ // remove the 18 (90/5=18) parity bits (down to 72 bits (96-6-18=72))
+ size_t bitLen = removeParity(bits_no_spacer, 0, 5, 3, 90); //source, startloc, paritylen, ptype, length_to_run
+ if (bitLen != 72) {
+ if (g_debugMode) PrintAndLog("Error gProxII: spacer removal did not produce 72 bits: %u, start: %u", bitLen, startIdx);
+ return 0;
}
- for (uint8_t i = 0; i < ByteCnt; i++){
- ByteStream[i] ^= xorKey; //xor
- if (g_debugMode) PrintAndLog("byte %d after xor: %02x", i, ByteStream[i]);
+ // get key and then get all 8 bytes of payload decoded
+ xorKey = (uint8_t)bytebits_to_byteLSBF(bits_no_spacer, 8);
+ for (size_t idx = 0; idx < 8; idx++) {
+ ByteStream[idx] = ((uint8_t)bytebits_to_byteLSBF(bits_no_spacer+8 + (idx*8),8)) ^ xorKey;
+ if (g_debugMode) PrintAndLog("byte %u after xor: %02x", (unsigned int)idx, ByteStream[idx]);
}
- //now ByteStream contains 64 bytes of decrypted raw tag data
+ //now ByteStream contains 8 Bytes (64 bits) of decrypted raw tag data
//
uint8_t fmtLen = ByteStream[0]>>2;
uint32_t FC = 0;
uint32_t Card = 0;
+ //get raw 96 bits to print
uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32);
uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32);
if (fmtLen==36){
FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1);
Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5);
- PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card);
+ PrintAndLog("G-Prox-II Found: FmtLen %d, FC %u, Card %u", (int)fmtLen, FC, Card);
} else if(fmtLen==26){
FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7);
Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7);
- PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card);
+ PrintAndLog("G-Prox-II Found: FmtLen %d, FC %u, Card %u", (int)fmtLen, FC, Card);
} else {
- PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",fmtLen);
+ PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",(int)fmtLen);
+ PrintAndLog("Decoded Raw: %s", sprint_hex(ByteStream, 8));
}
PrintAndLog("Raw: %08x%08x%08x", raw1,raw2,raw3);
setDemodBuf(DemodBuffer+ans, 96, 0);
return 1;
}
-//by marshmellow - see ASKrawDemod
+//by marshmellow
+//see ASKDemod for what args are accepted
+int CmdVikingDemod(const char *Cmd)
+{
+ if (!ASKDemod(Cmd, false, false, 1)) {
+ if (g_debugMode) PrintAndLog("ASKDemod failed");
+ return 0;
+ }
+ size_t size = DemodBufferLen;
+ //call lfdemod.c demod for Viking
+ int ans = VikingDemod_AM(DemodBuffer, &size);
+ if (ans < 0) {
+ if (g_debugMode) PrintAndLog("Error Viking_Demod %d", ans);
+ return 0;
+ }
+ //got a good demod
+ uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans, 32);
+ uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
+ uint32_t cardid = bytebits_to_byte(DemodBuffer+ans+24, 32);
+ uint8_t checksum = bytebits_to_byte(DemodBuffer+ans+32+24, 8);
+ PrintAndLog("Viking Tag Found: Card ID %08X, Checksum: %02X", cardid, (unsigned int) checksum);
+ PrintAndLog("Raw: %08X%08X", raw1,raw2);
+ setDemodBuf(DemodBuffer+ans, 64, 0);
+ return 1;
+}
+
+//by marshmellow - see ASKDemod
int Cmdaskrawdemod(const char *Cmd)
{
char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 12 || cmdp == 'h' || cmdp == 'H') {
- PrintAndLog("Usage: data rawdemod ar [clock] <invert> [maxError] [amplify]");
+ if (strlen(Cmd) > 35 || cmdp == 'h' || cmdp == 'H') {
+ PrintAndLog("Usage: data rawdemod ar [clock] <invert> [maxError] [maxLen] [amplify]");
PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
PrintAndLog(" <invert>, 1 to invert output");
PrintAndLog(" [set maximum allowed errors], default = 100");
+ PrintAndLog(" [set maximum Samples to read], default = 32768 (1024 bits at rf/64)");
PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
PrintAndLog("");
- PrintAndLog(" sample: data rawdemod ar = demod an ask tag from GraphBuffer");
- PrintAndLog(" : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified");
- PrintAndLog(" : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32");
- PrintAndLog(" : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data");
- PrintAndLog(" : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data");
- PrintAndLog(" : data rawdemod ar 64 1 0 = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
- PrintAndLog(" : data rawdemod ar 64 1 0 a = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp");
+ PrintAndLog(" sample: data rawdemod ar = demod an ask tag from GraphBuffer");
+ PrintAndLog(" : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified");
+ PrintAndLog(" : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32");
+ PrintAndLog(" : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data");
+ PrintAndLog(" : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data");
+ PrintAndLog(" : data rawdemod ar 64 1 0 = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
+ PrintAndLog(" : data rawdemod ar 64 1 0 0 a = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp");
return 0;
}
- return ASKrawDemod(Cmd, TRUE);
+ return ASKDemod(Cmd, true, false, 0);
}
int AutoCorrelate(int window, bool SaveGrph, bool verbose)
return usage_data_autocorr();
int window = 4000; //set default
char grph=0;
- bool updateGrph = FALSE;
+ bool updateGrph = false;
sscanf(Cmd, "%i %c", &window, &grph);
if (window >= GraphTraceLen) {
GraphTraceLen);
return 0;
}
- if (grph == 'g') updateGrph=TRUE;
- return AutoCorrelate(window, updateGrph, TRUE);
+ if (grph == 'g') updateGrph=true;
+ return AutoCorrelate(window, updateGrph, true);
}
int CmdBitsamples(const char *Cmd)
uint8_t factor = param_get8ex(Cmd, 0,2, 10);
//We have memory, don't we?
int swap[MAX_GRAPH_TRACE_LEN] = { 0 };
- uint32_t g_index = 0 ,s_index = 0;
- while(g_index < GraphTraceLen && s_index < MAX_GRAPH_TRACE_LEN)
+ uint32_t g_index = 0, s_index = 0;
+ while(g_index < GraphTraceLen && s_index + factor < MAX_GRAPH_TRACE_LEN)
{
int count = 0;
- for(count = 0; count < factor && s_index+count < MAX_GRAPH_TRACE_LEN; count ++)
+ for(count = 0; count < factor && s_index + count < MAX_GRAPH_TRACE_LEN; count++)
swap[s_index+count] = GraphBuffer[g_index];
- s_index+=count;
+
+ s_index += count;
+ g_index++;
}
- memcpy(GraphBuffer,swap, s_index * sizeof(int));
+ memcpy(GraphBuffer, swap, s_index * sizeof(int));
GraphTraceLen = s_index;
RepaintGraphWindow();
return 0;
int CmdAskEdgeDetect(const char *Cmd)
{
int thresLen = 25;
+ int Last = 0;
sscanf(Cmd, "%i", &thresLen);
- int shift = 127;
for(int i = 1; i<GraphTraceLen; i++){
if (GraphBuffer[i]-GraphBuffer[i-1]>=thresLen) //large jump up
- GraphBuffer[i-1] = 127;
+ Last = 127;
else if(GraphBuffer[i]-GraphBuffer[i-1]<=-1*thresLen) //large jump down
- GraphBuffer[i-1] = -127;
+ Last = -127;
+ GraphBuffer[i-1] = Last;
}
RepaintGraphWindow();
return 0;
int CmdDetectClockRate(const char *Cmd)
{
char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 3 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') {
- PrintAndLog("Usage: data detectclock [modulation]");
+ if (strlen(Cmd) > 6 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') {
+ PrintAndLog("Usage: data detectclock [modulation] <clock>");
PrintAndLog(" [modulation as char], specify the modulation type you want to detect the clock of");
+ PrintAndLog(" <clock> , specify the clock (optional - to get best start position only)");
PrintAndLog(" 'a' = ask, 'f' = fsk, 'n' = nrz/direct, 'p' = psk");
PrintAndLog("");
PrintAndLog(" sample: data detectclock a = detect the clock of an ask modulated wave in the GraphBuffer");
}
int ans=0;
if (cmdp == 'a'){
- ans = GetAskClock("", true, false);
+ ans = GetAskClock(Cmd+1, true, false);
} else if (cmdp == 'f'){
ans = GetFskClock("", true, false);
} else if (cmdp == 'n'){
char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert)
{
- char *fskType;
+ static char fType[8];
+ memset(fType, 0x00, 8);
+ char *fskType = fType;
if (fchigh==10 && fclow==8){
if (invert) //fsk2a
- fskType = "FSK2a";
+ memcpy(fskType, "FSK2a", 5);
else //fsk2
- fskType = "FSK2";
+ memcpy(fskType, "FSK2", 4);
} else if (fchigh == 8 && fclow == 5) {
if (invert)
- fskType = "FSK1";
+ memcpy(fskType, "FSK1", 4);
else
- fskType = "FSK1a";
+ memcpy(fskType, "FSK1a", 5);
} else {
- fskType = "FSK??";
+ memcpy(fskType, "FSK??", 5);
}
return fskType;
}
int FSKrawDemod(const char *Cmd, bool verbose)
{
//raw fsk demod no manchester decoding no start bit finding just get binary from wave
+ uint8_t rfLen, invert, fchigh, fclow;
//set defaults
- int rfLen = 0;
- int invert = 0;
- int fchigh = 0;
- int fclow = 0;
-
//set options from parameters entered with the command
- sscanf(Cmd, "%i %i %i %i", &rfLen, &invert, &fchigh, &fclow);
+ rfLen = param_get8(Cmd, 0);
+ invert = param_get8(Cmd, 1);
+ fchigh = param_get8(Cmd, 2);
+ fclow = param_get8(Cmd, 3);
if (strlen(Cmd)>0 && strlen(Cmd)<=2) {
- if (rfLen==1){
+ if (rfLen==1) {
invert = 1; //if invert option only is used
rfLen = 0;
- }
+ }
}
-
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
size_t BitLen = getFromGraphBuf(BitStream);
if (BitLen==0) return 0;
//get field clock lengths
uint16_t fcs=0;
- if (fchigh==0 || fclow == 0){
+ if (!fchigh || !fclow) {
fcs = countFC(BitStream, BitLen, 1);
- if (fcs==0){
- fchigh=10;
- fclow=8;
- }else{
- fchigh = (fcs >> 8) & 0xFF;
- fclow = fcs & 0xFF;
+ if (!fcs) {
+ fchigh = 10;
+ fclow = 8;
+ } else {
+ fchigh = (fcs >> 8) & 0x00FF;
+ fclow = fcs & 0x00FF;
}
}
//get bit clock length
- if (rfLen==0){
+ if (!rfLen) {
rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow);
- if (rfLen == 0) rfLen = 50;
+ if (!rfLen) rfLen = 50;
}
- int size = fskdemod(BitStream,BitLen,(uint8_t)rfLen,(uint8_t)invert,(uint8_t)fchigh,(uint8_t)fclow);
- if (size>0){
+ int size = fskdemod(BitStream, BitLen, rfLen, invert, fchigh, fclow);
+ if (size > 0) {
setDemodBuf(BitStream,size,0);
// Now output the bitstream to the scrollback by line of 16 bits
if (verbose || g_debugMode) {
- PrintAndLog("\nUsing Clock:%d, invert:%d, fchigh:%d, fclow:%d", rfLen, invert, fchigh, fclow);
+ PrintAndLog("\nUsing Clock:%u, invert:%u, fchigh:%u, fclow:%u", (unsigned int)rfLen, (unsigned int)invert, (unsigned int)fchigh, (unsigned int)fclow);
PrintAndLog("%s decoded bitstream:",GetFSKType(fchigh,fclow,invert));
printDemodBuff();
}
return 1;
- } else{
+ } else {
if (g_debugMode) PrintAndLog("no FSK data found");
}
return 0;
int CmdFSKrawdemod(const char *Cmd)
{
char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
+ if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H') {
PrintAndLog("Usage: data rawdemod fs [clock] <invert> [fchigh] [fclow]");
PrintAndLog(" [set clock as integer] optional, omit for autodetect.");
PrintAndLog(" <invert>, 1 for invert output, can be used even if the clock is omitted");
PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");
return 0;
}
- return FSKrawDemod(Cmd, TRUE);
+ return FSKrawDemod(Cmd, true);
}
//by marshmellow (based on existing demod + holiman's refactor)
//print ioprox ID and some format details
int CmdFSKdemodIO(const char *Cmd)
{
- //raw fsk demod no manchester decoding no start bit finding just get binary from wave
- //set defaults
int idx=0;
//something in graphbuffer?
if (GraphTraceLen < 65) {
//print full AWID Prox ID and some bit format details if found
int CmdFSKdemodAWID(const char *Cmd)
{
-
- //int verbose=1;
- //sscanf(Cmd, "%i", &verbose);
-
- //raw fsk demod no manchester decoding no start bit finding just get binary from wave
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
size_t size = getFromGraphBuf(BitStream);
if (size==0) return 0;
//get binary from fsk wave
int idx = AWIDdemodFSK(BitStream, &size);
if (idx<=0){
- if (g_debugMode==1){
+ if (g_debugMode){
if (idx == -1)
PrintAndLog("DEBUG: Error - not enough samples");
else if (idx == -2)
size = removeParity(BitStream, idx+8, 4, 1, 88);
if (size != 66){
- if (g_debugMode==1) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");
+ if (g_debugMode) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");
return 0;
}
// ok valid card found!
//get binary from fsk wave
int idx = PyramiddemodFSK(BitStream, &size);
if (idx < 0){
- if (g_debugMode==1){
+ if (g_debugMode){
if (idx == -5)
PrintAndLog("DEBUG: Error - not enough samples");
else if (idx == -1)
size = removeParity(BitStream, idx+8, 8, 1, 120);
if (size != 105){
- if (g_debugMode==1)
+ if (g_debugMode)
PrintAndLog("DEBUG: Error at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size, idx, rawHi3);
return 0;
}
uint32_t fc = 0;
uint32_t cardnum = 0;
uint32_t code1 = 0;
- //uint32_t code2 = 0;
if (fmtLen==26){
fc = bytebits_to_byte(BitStream+73, 8);
cardnum = bytebits_to_byte(BitStream+81, 16);
return 1;
}
+// FDX-B ISO11784/85 demod (aka animal tag) BIPHASE, inverted, rf/32, with preamble of 00000000001 (128bits)
+// 8 databits + 1 parity (1)
+// CIITT 16 chksum
+// NATIONAL CODE, ICAR database
+// COUNTRY CODE (ISO3166) or http://cms.abvma.ca/uploads/ManufacturersISOsandCountryCodes.pdf
+// FLAG (animal/non-animal)
+/*
+38 IDbits
+10 country code
+1 extra app bit
+14 reserved bits
+1 animal bit
+16 ccitt CRC chksum over 64bit ID CODE.
+24 appli bits.
+
+-- sample: 985121004515220 [ 37FF65B88EF94 ]
+*/
+int CmdFDXBdemodBI(const char *Cmd){
+
+ int invert = 1;
+ int clk = 32;
+ int errCnt = 0;
+ int maxErr = 0;
+ uint8_t BitStream[MAX_DEMOD_BUF_LEN];
+ size_t size = getFromGraphBuf(BitStream);
+
+ errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
+ if ( errCnt < 0 || errCnt > maxErr ) {
+ if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk);
+ return 0;
+ }
+
+ errCnt = BiphaseRawDecode(BitStream, &size, maxErr, 1);
+ if (errCnt < 0 || errCnt > maxErr ) {
+ if (g_debugMode) PrintAndLog("Error BiphaseRawDecode: %d", errCnt);
+ return 0;
+ }
+
+ int preambleIndex = FDXBdemodBI(BitStream, &size);
+ if (preambleIndex < 0){
+ if (g_debugMode) PrintAndLog("Error FDXBDemod , no startmarker found :: %d",preambleIndex);
+ return 0;
+ }
+ if (size != 128) {
+ if (g_debugMode) PrintAndLog("Error incorrect data length found");
+ return 0;
+ }
+
+ setDemodBuf(BitStream, 128, preambleIndex);
+
+ // remove marker bits (1's every 9th digit after preamble) (pType = 2)
+ size = removeParity(BitStream, preambleIndex + 11, 9, 2, 117);
+ if ( size != 104 ) {
+ if (g_debugMode) PrintAndLog("Error removeParity:: %d", size);
+ return 0;
+ }
+ if (g_debugMode) {
+ char *bin = sprint_bin_break(BitStream,size,16);
+ PrintAndLog("DEBUG BinStream:\n%s",bin);
+ }
+ PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found:");
+ if (g_debugMode) PrintAndLog("Start marker %d; Size %d", preambleIndex, size);
+
+ //got a good demod
+ uint64_t NationalCode = ((uint64_t)(bytebits_to_byteLSBF(BitStream+32,6)) << 32) | bytebits_to_byteLSBF(BitStream,32);
+ uint32_t countryCode = bytebits_to_byteLSBF(BitStream+38,10);
+ uint8_t dataBlockBit = BitStream[48];
+ uint32_t reservedCode = bytebits_to_byteLSBF(BitStream+49,14);
+ uint8_t animalBit = BitStream[63];
+ uint32_t crc16 = bytebits_to_byteLSBF(BitStream+64,16);
+ uint32_t extended = bytebits_to_byteLSBF(BitStream+80,24);
+
+ uint64_t rawid = ((uint64_t)bytebits_to_byte(BitStream,32)<<32) | bytebits_to_byte(BitStream+32,32);
+ uint8_t raw[8];
+ num_to_bytes(rawid, 8, raw);
+
+ if (g_debugMode) PrintAndLog("Raw ID Hex: %s", sprint_hex(raw,8));
+
+ uint16_t calcCrc = crc16_ccitt_kermit(raw, 8);
+ PrintAndLog("Animal ID: %04u-%012" PRIu64, countryCode, NationalCode);
+ PrintAndLog("National Code: %012" PRIu64, NationalCode);
+ PrintAndLog("CountryCode: %04u", countryCode);
+ PrintAndLog("Extended Data: %s", dataBlockBit ? "True" : "False");
+ PrintAndLog("reserved Code: %u", reservedCode);
+ PrintAndLog("Animal Tag: %s", animalBit ? "True" : "False");
+ PrintAndLog("CRC: 0x%04X - [%04X] - %s", crc16, calcCrc, (calcCrc == crc16) ? "Passed" : "Failed");
+ PrintAndLog("Extended: 0x%X\n", extended);
+
+ return 1;
+}
+
+
//by marshmellow
//attempt to psk1 demod graph buffer
int PSKDemod(const char *Cmd, bool verbose)
clk=0;
}
if (invert != 0 && invert != 1) {
- if (verbose) PrintAndLog("Invalid argument: %s", Cmd);
+ if (g_debugMode || verbose) PrintAndLog("Invalid argument: %s", Cmd);
return 0;
}
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
size_t BitLen = getFromGraphBuf(BitStream);
- if (BitLen==0) return -1;
+ if (BitLen==0) return 0;
uint8_t carrier=countFC(BitStream, BitLen, 0);
if (carrier!=2 && carrier!=4 && carrier!=8){
//invalid carrier
return 0;
}
+ if (g_debugMode){
+ PrintAndLog("Carrier: rf/%d",carrier);
+ }
int errCnt=0;
errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert);
if (errCnt > maxErr){
}
if (!ans){
- if (g_debugMode==1)
+ if (g_debugMode)
PrintAndLog("Error1: %d",ans);
return 0;
}
uint8_t invert=0;
- ans = indala26decode(DemodBuffer,(size_t *) &DemodBufferLen, &invert);
- if (ans < 1) {
- if (g_debugMode==1)
+ size_t size = DemodBufferLen;
+ int startIdx = indala26decode(DemodBuffer, &size, &invert);
+ if (startIdx < 0 || size > 224) {
+ if (g_debugMode)
PrintAndLog("Error2: %d",ans);
return -1;
}
- char showbits[251]={0x00};
+ setDemodBuf(DemodBuffer, size, (size_t)startIdx);
if (invert)
- if (g_debugMode==1)
+ if (g_debugMode)
PrintAndLog("Had to invert bits");
+ PrintAndLog("BitLen: %d",DemodBufferLen);
//convert UID to HEX
uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7;
- int idx;
- uid1=0;
- uid2=0;
- PrintAndLog("BitLen: %d",DemodBufferLen);
- if (DemodBufferLen==64){
- for( idx=0; idx<64; idx++) {
- uid1=(uid1<<1)|(uid2>>31);
- if (DemodBuffer[idx] == 0) {
- uid2=(uid2<<1)|0;
- showbits[idx]='0';
- } else {
- uid2=(uid2<<1)|1;
- showbits[idx]='1';
- }
- }
- showbits[idx]='\0';
- PrintAndLog("Indala UID=%s (%x%08x)", showbits, uid1, uid2);
- }
- else {
- uid3=0;
- uid4=0;
- uid5=0;
- uid6=0;
- uid7=0;
- for( idx=0; idx<DemodBufferLen; idx++) {
- uid1=(uid1<<1)|(uid2>>31);
- uid2=(uid2<<1)|(uid3>>31);
- uid3=(uid3<<1)|(uid4>>31);
- uid4=(uid4<<1)|(uid5>>31);
- uid5=(uid5<<1)|(uid6>>31);
- uid6=(uid6<<1)|(uid7>>31);
- if (DemodBuffer[idx] == 0) {
- uid7=(uid7<<1)|0;
- showbits[idx]='0';
- }
- else {
- uid7=(uid7<<1)|1;
- showbits[idx]='1';
- }
- }
- showbits[idx]='\0';
- PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits, uid1, uid2, uid3, uid4, uid5, uid6, uid7);
+ uid1=bytebits_to_byte(DemodBuffer,32);
+ uid2=bytebits_to_byte(DemodBuffer+32,32);
+ if (DemodBufferLen==64) {
+ PrintAndLog("Indala UID=%s (%x%08x)", sprint_bin_break(DemodBuffer,DemodBufferLen,16), uid1, uid2);
+ } else {
+ uid3=bytebits_to_byte(DemodBuffer+64,32);
+ uid4=bytebits_to_byte(DemodBuffer+96,32);
+ uid5=bytebits_to_byte(DemodBuffer+128,32);
+ uid6=bytebits_to_byte(DemodBuffer+160,32);
+ uid7=bytebits_to_byte(DemodBuffer+192,32);
+ PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)",
+ sprint_bin_break(DemodBuffer,DemodBufferLen,16), uid1, uid2, uid3, uid4, uid5, uid6, uid7);
}
if (g_debugMode){
PrintAndLog("DEBUG: printing demodbuffer:");
return 1;
}
+int CmdPSKNexWatch(const char *Cmd)
+{
+ if (!PSKDemod("", false)) return 0;
+ uint8_t preamble[28] = {0,0,0,0,0,1,0,1,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
+ size_t startIdx = 0, size = DemodBufferLen;
+ bool invert = false;
+ if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)){
+ // if didn't find preamble try again inverting
+ if (!PSKDemod("1", false)) return 0;
+ size = DemodBufferLen;
+ if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)) return 0;
+ invert = true;
+ }
+ if (size != 128) return 0;
+ setDemodBuf(DemodBuffer, size, startIdx+4);
+ startIdx = 8+32; //4 = extra i added, 8 = preamble, 32 = reserved bits (always 0)
+ //get ID
+ uint32_t ID = 0;
+ for (uint8_t wordIdx=0; wordIdx<4; wordIdx++){
+ for (uint8_t idx=0; idx<8; idx++){
+ ID = (ID << 1) | DemodBuffer[startIdx+wordIdx+(idx*4)];
+ }
+ }
+ //parity check (TBD)
+
+ //checksum check (TBD)
+
+ //output
+ PrintAndLog("NexWatch ID: %d", ID);
+ if (invert){
+ PrintAndLog("Had to Invert - probably NexKey");
+ for (uint8_t idx=0; idx<size; idx++)
+ DemodBuffer[idx] ^= 1;
+ }
+
+ CmdPrintDemodBuff("x");
+ return 1;
+}
+
// by marshmellow
// takes 3 arguments - clock, invert, maxErr as integers
// attempts to demodulate nrz only
// prints binary found and saves in demodbuffer for further commands
-
int NRZrawDemod(const char *Cmd, bool verbose)
{
int invert=0;
size_t BitLen = getFromGraphBuf(BitStream);
if (BitLen==0) return 0;
int errCnt=0;
- errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert, maxErr);
+ errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert);
if (errCnt > maxErr){
if (g_debugMode) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
return 0;
int CmdNRZrawDemod(const char *Cmd)
{
char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
+ if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') {
PrintAndLog("Usage: data rawdemod nr [clock] <0|1> [maxError]");
PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
PrintAndLog(" <invert>, 1 for invert output");
PrintAndLog(" : data rawdemod nr 64 1 0 = demod a nrz/direct tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
return 0;
}
- return NRZrawDemod(Cmd, TRUE);
+ return NRZrawDemod(Cmd, true);
}
// by marshmellow
{
int ans;
char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
+ if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') {
PrintAndLog("Usage: data rawdemod p1 [clock] <0|1> [maxError]");
PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
PrintAndLog(" <invert>, 1 for invert output");
PrintAndLog(" : data rawdemod p1 64 1 0 = demod a psk1 tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
return 0;
}
- ans = PSKDemod(Cmd, TRUE);
+ ans = PSKDemod(Cmd, true);
//output
if (!ans){
if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
{
int ans=0;
char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
+ if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') {
PrintAndLog("Usage: data rawdemod p2 [clock] <0|1> [maxError]");
PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
PrintAndLog(" <invert>, 1 for invert output");
PrintAndLog(" : data rawdemod p2 64 1 0 = demod a psk2 tag from GraphBuffer using a clock of RF/64, inverting output and allowing 0 demod errors");
return 0;
}
- ans=PSKDemod(Cmd, TRUE);
+ ans=PSKDemod(Cmd, true);
if (!ans){
if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
return 0;
{
char cmdp = Cmd[0]; //param_getchar(Cmd, 0);
- if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd)<2) {
+ if (strlen(Cmd) > 35 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd)<2) {
PrintAndLog("Usage: data rawdemod [modulation] <help>|<options>");
PrintAndLog(" [modulation] as 2 char, 'ab' for ask/biphase, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, ...");
PrintAndLog(" 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2");
return 0;
}
+int CmdSetGraphMarkers(const char *Cmd) {
+ sscanf(Cmd, "%i %i", &CursorCPos, &CursorDPos);
+ RepaintGraphWindow();
+ return 0;
+}
+
int CmdHexsamples(const char *Cmd)
{
int i, j;
RepaintGraphWindow();
return 0;
}
-typedef struct {
- uint8_t * buffer;
- uint32_t numbits;
- uint32_t position;
-}BitstreamOut;
-
-bool _headBit( BitstreamOut *stream)
-{
- int bytepos = stream->position >> 3; // divide by 8
- int bitpos = (stream->position++) & 7; // mask out 00000111
- return (*(stream->buffer + bytepos) >> (7-bitpos)) & 1;
-}
-uint8_t getByte(uint8_t bits_per_sample, BitstreamOut* b)
+uint8_t getByte(uint8_t bits_per_sample, BitstreamIn* b)
{
int i;
uint8_t val = 0;
for(i =0 ; i < bits_per_sample; i++)
{
- val |= (_headBit(b) << (7-i));
+ val |= (headBit(b) << (7-i));
}
return val;
}
int n = strtol(Cmd, NULL, 0);
- if (n == 0)
- n = sizeof(got);
-
- if (n > sizeof(got))
+ if (n == 0 || n > sizeof(got))
n = sizeof(got);
PrintAndLog("Reading %d bytes from device memory\n", n);
if(bits_per_sample < 8)
{
PrintAndLog("Unpacking...");
- BitstreamOut bout = { got, bits_per_sample * n, 0};
+ BitstreamIn bout = { got, bits_per_sample * n, 0};
int j =0;
- for (j = 0; j * bits_per_sample < n * 8 && j < sizeof(GraphBuffer); j++) {
+ for (j = 0; j * bits_per_sample < n * 8 && j < n; j++) {
uint8_t sample = getByte(bits_per_sample, &bout);
GraphBuffer[j] = ((int) sample )- 128;
}
int CmdTuneSamples(const char *Cmd)
{
- int timeout = 0;
+ int timeout = 0, arg = FLAG_TUNE_ALL;
+
+ if(*Cmd == 'l') {
+ arg = FLAG_TUNE_LF;
+ } else if (*Cmd == 'h') {
+ arg = FLAG_TUNE_HF;
+ } else if (*Cmd != '\0') {
+ PrintAndLog("use 'tune' or 'tune l' or 'tune h'");
+ return 0;
+ }
+
printf("\nMeasuring antenna characteristics, please wait...");
- UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING};
+ UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING, {arg, 0, 0}};
SendCommand(&c);
UsbCommand resp;
return 0;
}
+// trim graph (middle) piece
+int CmdMtrim(const char *Cmd) {
+ int start = 0, stop = 0;
+ sscanf(Cmd, "%i %i", &start, &stop);
+
+ if (start > GraphTraceLen || stop > GraphTraceLen || start > stop) return 0;
+ start++; //leave start position sample
+
+ GraphTraceLen -= stop - start;
+ for (int i = 0; i < GraphTraceLen; i++) {
+ GraphBuffer[start+i] = GraphBuffer[stop+i];
+ }
+ return 0;
+}
+
+
int CmdNorm(const char *Cmd)
{
int i;
return 0;
}
+int usage_data_bin2hex(){
+ PrintAndLog("Usage: data bin2hex <binary_digits>");
+ PrintAndLog(" This function will ignore all characters not 1 or 0 (but stop reading on whitespace)");
+ return 0;
+}
+
+/**
+ * @brief Utility for conversion via cmdline.
+ * @param Cmd
+ * @return
+ */
+int Cmdbin2hex(const char *Cmd)
+{
+ int bg =0, en =0;
+ if(param_getptr(Cmd, &bg, &en, 0))
+ {
+ return usage_data_bin2hex();
+ }
+ //Number of digits supplied as argument
+ size_t length = en - bg +1;
+ size_t bytelen = (length+7) / 8;
+ uint8_t* arr = (uint8_t *) malloc(bytelen);
+ memset(arr, 0, bytelen);
+ BitstreamOut bout = { arr, 0, 0 };
+
+ for(; bg <= en ;bg++)
+ {
+ char c = Cmd[bg];
+ if( c == '1') pushBit(&bout, 1);
+ else if( c == '0') pushBit(&bout, 0);
+ else PrintAndLog("Ignoring '%c'", c);
+ }
+
+ if(bout.numbits % 8 != 0)
+ {
+ printf("[padded with %d zeroes]\n", 8-(bout.numbits % 8));
+ }
+
+ //Uses printf instead of PrintAndLog since the latter
+ // adds linebreaks to each printout - this way was more convenient since we don't have to
+ // allocate a string and write to that first...
+ for(size_t x = 0; x < bytelen ; x++)
+ {
+ printf("%02X", arr[x]);
+ }
+ printf("\n");
+ free(arr);
+ return 0;
+}
+
+int usage_data_hex2bin() {
+ PrintAndLog("Usage: data hex2bin <hex_digits>");
+ PrintAndLog(" This function will ignore all non-hexadecimal characters (but stop reading on whitespace)");
+ return 0;
+
+}
+
+int Cmdhex2bin(const char *Cmd)
+{
+ int bg =0, en =0;
+ if(param_getptr(Cmd, &bg, &en, 0))
+ {
+ return usage_data_hex2bin();
+ }
+
+
+ while(bg <= en )
+ {
+ char x = Cmd[bg++];
+ // capitalize
+ if (x >= 'a' && x <= 'f')
+ x -= 32;
+ // convert to numeric value
+ if (x >= '0' && x <= '9')
+ x -= '0';
+ else if (x >= 'A' && x <= 'F')
+ x -= 'A' - 10;
+ else
+ continue;
+
+ //Uses printf instead of PrintAndLog since the latter
+ // adds linebreaks to each printout - this way was more convenient since we don't have to
+ // allocate a string and write to that first...
+
+ for(int i= 0 ; i < 4 ; ++i)
+ printf("%d",(x >> (3 - i)) & 1);
+ }
+ printf("\n");
+
+ return 0;
+}
+
static command_t CommandTable[] =
{
{"help", CmdHelp, 1, "This help"},
{"askedgedetect", CmdAskEdgeDetect, 1, "[threshold] Adjust Graph for manual ask demod using the length of sample differences to detect the edge of a wave (use 20-45, def:25)"},
{"askem410xdemod", CmdAskEM410xDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"},
{"askgproxiidemod", CmdG_Prox_II_Demod, 1, "Demodulate a G Prox II tag from GraphBuffer"},
+ {"askvikingdemod", CmdVikingDemod, 1, "Demodulate a Viking tag from GraphBuffer"},
{"autocorr", CmdAutoCorr, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"},
- {"biphaserawdecode",CmdBiphaseDecodeRaw,1,"[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"},
+ {"biphaserawdecode",CmdBiphaseDecodeRaw,1, "[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"},
+ {"bin2hex", Cmdbin2hex, 1, "bin2hex <digits> -- Converts binary to hexadecimal"},
{"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"},
{"buffclear", CmdBuffClear, 1, "Clear sample buffer and graph window"},
{"dec", CmdDec, 1, "Decimate samples"},
{"detectclock", CmdDetectClockRate, 1, "[modulation] Detect clock rate of wave in GraphBuffer (options: 'a','f','n','p' for ask, fsk, nrz, psk respectively)"},
+ {"fdxbdemod", CmdFDXBdemodBI , 1, "Demodulate a FDX-B ISO11784/85 Biphase tag from GraphBuffer"},
{"fskawiddemod", CmdFSKdemodAWID, 1, "Demodulate an AWID FSK tag from GraphBuffer"},
//{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"},
{"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate a HID FSK tag from GraphBuffer"},
{"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"},
{"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
{"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
+ {"hex2bin", Cmdhex2bin, 1, "hex2bin <hexadecimal> -- Converts hexadecimal to binary"},
{"hide", CmdHide, 1, "Hide graph window"},
{"hpf", CmdHpf, 1, "Remove DC offset from trace"},
{"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"},
{"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"},
{"rtrim", CmdRtrim, 1, "<location to end trace> -- Trim samples from right of trace"},
- {"manrawdecode", Cmdmandecoderaw, 1, "[maxErr] -- Manchester decode binary stream in DemodBuffer"},
+ {"mtrim", CmdMtrim, 1, "<start> <stop> -- Trim out samples from the specified start to the specified stop"},
+ {"manrawdecode", Cmdmandecoderaw, 1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"},
{"norm", CmdNorm, 1, "Normalize max/min to +/-128"},
{"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"},
- {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] -- print the data in the DemodBuffer - 'x' for hex output"},
+ {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] [o] <offset> [l] <length> -- print the data in the DemodBuffer - 'x' for hex output"},
{"pskindalademod", CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"},
+ {"psknexwatchdemod",CmdPSKNexWatch, 1, "Demodulate a NexWatch tag (nexkey, quadrakey) (PSK1) from GraphBuffer"},
{"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"},
{"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"},
{"save", CmdSave, 1, "<filename> -- Save trace (from graph window)"},
+ {"setgraphmarkers", CmdSetGraphMarkers, 1, "[orange_marker] [blue_marker] (in graph window)"},
{"scale", CmdScale, 1, "<int> -- Set cursor display scale"},
- {"setdebugmode", CmdSetDebugMode, 1, "<0|1> -- Turn on or off Debugging Mode for demods"},
+ {"setdebugmode", CmdSetDebugMode, 1, "<0|1|2> -- Turn on or off Debugging Level for lf demods"},
{"shiftgraphzero", CmdGraphShiftZero, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},
{"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
{"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"},
projects / proxmark3-svn / blobdiff