}
//by marshmellow
//print 64 bit EM410x ID in multiple formats
-void printEM410x(uint64_t id)
+void printEM410x(uint32_t hi, uint64_t id)
{
- if (id !=0){
+ if (id || hi){
uint64_t iii=1;
uint64_t id2lo=0;
uint32_t ii=0;
id2lo=(id2lo<<1LL) | ((id & (iii << (i+((ii-1)*8)))) >> (i+((ii-1)*8)));
}
}
- //output em id
- PrintAndLog("EM TAG ID : %010llx", id);
- PrintAndLog("Unique TAG ID: %010llx", id2lo);
- PrintAndLog("DEZ 8 : %08lld",id & 0xFFFFFF);
- PrintAndLog("DEZ 10 : %010lld",id & 0xFFFFFF);
- PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id>>16LL) & 0xFFFF,(id & 0xFFFF));
- PrintAndLog("DEZ 3.5A : %03lld.%05lld",(id>>32ll),(id & 0xFFFF));
- PrintAndLog("DEZ 14/IK2 : %014lld",id);
- PrintAndLog("DEZ 15/IK3 : %015lld",id2lo);
- PrintAndLog("Other : %05lld_%03lld_%08lld",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF));
+ if (hi){
+ //output 88 bit em id
+ PrintAndLog("EM TAG ID : %06x%016llx", hi, id);
+ } else{
+ //output 40 bit em id
+ PrintAndLog("EM TAG ID : %010llx", id);
+ PrintAndLog("Unique TAG ID: %010llx", id2lo);
+ PrintAndLog("DEZ 8 : %08lld",id & 0xFFFFFF);
+ PrintAndLog("DEZ 10 : %010lld",id & 0xFFFFFF);
+ PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id>>16LL) & 0xFFFF,(id & 0xFFFF));
+ PrintAndLog("DEZ 3.5A : %03lld.%05lld",(id>>32ll),(id & 0xFFFF));
+ PrintAndLog("DEZ 14/IK2 : %014lld",id);
+ PrintAndLog("DEZ 15/IK3 : %015lld",id2lo);
+ PrintAndLog("Other : %05lld_%03lld_%08lld",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF));
+ }
}
return;
}
//prints binary found and saves in graphbuffer for further commands
int CmdAskEM410xDemod(const char *Cmd)
{
- int invert=0;
- int clk=0;
- int maxErr=100;
char cmdp = param_getchar(Cmd, 0);
if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
PrintAndLog("Usage: data askem410xdemod [clock] <0|1> [maxError]");
PrintAndLog(" : data askem410xdemod 32 1 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32 and inverting data");
PrintAndLog(" : data askem410xdemod 1 = demod an EM410x Tag ID from GraphBuffer while inverting data");
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;
- }
-
-
- uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
- sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
- if (invert != 0 && invert != 1) {
- PrintAndLog("Invalid argument: %s", Cmd);
- return 0;
- }
- size_t BitLen = getFromGraphBuf(BitStream);
-
- if (g_debugMode==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen);
- if (BitLen==0) return 0;
- int errCnt=0;
- errCnt = askmandemod(BitStream, &BitLen, &clk, &invert, maxErr);
- if (errCnt<0||BitLen<16){ //if fatal error (or -1)
- if (g_debugMode==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
return 0;
}
- PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,BitLen);
+ int ans = ASKmanDemod(Cmd, FALSE, FALSE);
+ if (!ans) return 0;
- //output
- if (errCnt>0){
- PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
- }
- //PrintAndLog("ASK/Manchester decoded bitstream:");
- // Now output the bitstream to the scrollback by line of 16 bits
- setDemodBuf(BitStream,BitLen,0);
- //printDemodBuff();
uint64_t lo =0;
+ uint32_t hi =0;
size_t idx=0;
- lo = Em410xDecode(BitStream, &BitLen, &idx);
- if (lo>0){
- //set GraphBuffer for clone or sim command
- setDemodBuf(BitStream, BitLen, idx);
+ if (Em410xDecode(DemodBuffer,(size_t *) &DemodBufferLen, &idx, &hi, &lo)){
if (g_debugMode){
- PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
+ PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, DemodBufferLen);
printDemodBuff();
}
PrintAndLog("EM410x pattern found: ");
- if (BitLen > 64) PrintAndLog("\nWarning! Length not what is expected - Length: %d bits\n",BitLen);
- printEM410x(lo);
+ printEM410x(hi, lo);
return 1;
}
return 0;
if (g_debugMode==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
return 0;
}
- if (verbose) PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,BitLen);
+ if (verbose || g_debugMode) PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,BitLen);
//output
if (errCnt>0){
- if (verbose) PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
+ if (verbose || g_debugMode) PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
}
- if (verbose) PrintAndLog("ASK/Manchester decoded bitstream:");
+ 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) printDemodBuff();
+ if (verbose || g_debugMode) printDemodBuff();
uint64_t lo =0;
+ uint32_t hi =0;
size_t idx=0;
if (emSearch){
- lo = Em410xDecode(BitStream, &BitLen, &idx);
- if (lo>0){
+ if (Em410xDecode(BitStream, &BitLen, &idx, &hi, &lo)){
//set GraphBuffer for clone or sim command
setDemodBuf(BitStream, BitLen, idx);
if (g_debugMode){
printDemodBuff();
}
if (verbose) PrintAndLog("EM410x pattern found: ");
- if (verbose) printEM410x(lo);
+ if (verbose) printEM410x(hi, lo);
return 1;
}
}
printBitStream(BitStream, size);
if (errCnt==0){
uint64_t id = 0;
+ uint32_t hi = 0;
size_t idx=0;
- id = Em410xDecode(BitStream, &size, &idx);
- if (id>0){
+ if (Em410xDecode(BitStream, &size, &idx, &hi, &id)){
//need to adjust to set bitstream back to manchester encoded data
//setDemodBuf(BitStream, size, idx);
- printEM410x(id);
+ printEM410x(hi, id);
}
}
return 1;
// width waves vs small width waves to help the decode positioning) or askbiphdemod
int CmdBiphaseDecodeRaw(const char *Cmd)
{
- int i = 0;
- int errCnt=0;
size_t size=0;
- int offset=0;
- int invert=0;
- int high=0, low=0;
+ int offset=0, invert=0, maxErr=20, errCnt=0;
char cmdp = param_getchar(Cmd, 0);
if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') {
- PrintAndLog("Usage: data biphaserawdecode [offset] <invert>");
- PrintAndLog(" Converts 10 or 01 to 0 and 11 or 00 to 1");
+ PrintAndLog("Usage: data biphaserawdecode [offset] [invert] [maxErr]");
+ PrintAndLog(" Converts 10 or 01 to 1 and 11 or 00 to 0");
PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
PrintAndLog("");
PrintAndLog(" [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position");
PrintAndLog(" [invert <0|1>], set to 1 to invert output");
+ PrintAndLog(" [maxErr int], set max errors tolerated - default=20");
PrintAndLog("");
PrintAndLog(" sample: data biphaserawdecode = decode biphase bitstream from the demodbuffer");
PrintAndLog(" sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output");
return 0;
}
- sscanf(Cmd, "%i %i", &offset, &invert);
- if (DemodBufferLen==0) return 0;
- uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
- //get graphbuffer & high and low
- for (;i<DemodBufferLen;++i){
- if(DemodBuffer[i]>high)high=DemodBuffer[i];
- else if(DemodBuffer[i]<low)low=DemodBuffer[i];
- BitStream[i]=DemodBuffer[i];
- }
- if (high>1 || low <0){
- PrintAndLog("Error: please raw demod the wave first then decode");
+ sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr);
+ if (DemodBufferLen==0){
+ PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first");
return 0;
}
- size=i;
+ uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+ memcpy(BitStream, DemodBuffer, DemodBufferLen);
+ size = DemodBufferLen;
errCnt=BiphaseRawDecode(BitStream, &size, offset, invert);
- if (errCnt>=20){
+ if (errCnt<0){
+ PrintAndLog("Error during decode:%d", errCnt);
+ return 0;
+ }
+ if (errCnt>maxErr){
PrintAndLog("Too many errors attempting to decode: %d",errCnt);
return 0;
}
- PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset,errCnt);
+
+ if (errCnt>0){
+ PrintAndLog("# Errors found during Demod (shown as 77 in bit stream): %d",errCnt);
+ }
+ PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset,invert);
printBitStream(BitStream, size);
- PrintAndLog("\nif bitstream does not look right try offset=1");
- if (offset == 1) setDemodBuf(DemodBuffer,DemodBufferLen-1,1); //remove first bit from raw demod
+
+ if (offset) setDemodBuf(DemodBuffer,DemodBufferLen-offset, offset); //remove first bit from raw demod
return 1;
}
// set demod buffer back to raw after biphase demod
-void setBiphaseDemodBuf(uint8_t *BitStream, size_t size)
+void setBiphasetoRawDemodBuf(uint8_t *BitStream, size_t size)
{
uint8_t rawStream[512]={0x00};
size_t i=0;
setDemodBuf(rawStream,i,0);
return;
}
+
//by marshmellow
//takes 4 arguments - clock, invert, maxErr as integers and amplify as char
//attempts to demodulate ask only
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
sscanf(Cmd, "%i %i %i %c", &clk, &invert, &maxErr, &);
if (invert != 0 && invert != 1) {
- if (verbose) PrintAndLog("Invalid argument: %s", Cmd);
+ if (verbose || g_debugMode) PrintAndLog("Invalid argument: %s", Cmd);
return 0;
}
if (clk==1){
int errCnt=0;
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) PrintAndLog("no data found");
- if (g_debugMode==1 && verbose) PrintAndLog("errCnt: %d, BitLen: %d, clk: %d, invert: %d", errCnt, BitLen, clk, invert);
+ 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 (verbose) PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d", clk, invert, BitLen);
+ 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){
+ if (errCnt>0 && (verbose || g_debugMode)){
PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d", errCnt);
}
- if (verbose){
+ if (verbose || g_debugMode){
PrintAndLog("ASK demoded bitstream:");
// Now output the bitstream to the scrollback by line of 16 bits
printBitStream(BitStream,BitLen);
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+2, 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 errCnt = BiphaseRawDecode(BitStream, &size, offset, invert);
+ if (errCnt < 0){
+ if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode: %d", errCnt);
+ return 0;
+ }
+ if (errCnt > maxErr) {
+ if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode too many errors: %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);
+ printDemodBuff();
+ }
+ return 1;
+}
+//by marshmellow - see ASKbiphaseDemod
+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>");
+ 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(" <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(" NOTE: any other arg must have previous args set to work");
+ 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");
+ return 0;
+ }
+ return ASKbiphaseDemod(Cmd, TRUE);
+}
+
//by marshmellow
//attempts to demodulate and identify a G_Prox_II verex/chubb card
//WARNING: if it fails during some points it will destroy the DemodBuffer data
//if successful it will push askraw data back to demod buffer ready for emulation
int CmdG_Prox_II_Demod(const char *Cmd)
{
- int ans = ASKrawDemod(Cmd, FALSE);
- if (ans <= 0) {
- if (g_debugMode) PrintAndLog("Error AskrawDemod: %d",ans);
- return 0; //ans;
+ if (!ASKbiphaseDemod(Cmd, FALSE)){
+ if (g_debugMode) PrintAndLog("ASKbiphaseDemod failed 1st try");
+ return 0;
}
size_t size = DemodBufferLen;
- ans = BiphaseRawDecode(DemodBuffer, &size, 0, 0);
- if (ans !=0) {
- if (g_debugMode) PrintAndLog("Error BiphaseRawDecode: %d",ans);
- return 0; //ans;
- }
//call lfdemod.c demod for gProxII
- ans = gProxII_Demod(DemodBuffer, &size);
+ int ans = gProxII_Demod(DemodBuffer, &size);
if (ans < 0){
- if (g_debugMode) PrintAndLog("Error gProxII_Demod 1st Try: %d",ans);
- //try biphase again
- ans = BiphaseRawDecode(DemodBuffer, &size, 1, 0);
- if (ans != 0) {
- if (g_debugMode) PrintAndLog("Error BiphaseRawDecode: %d",ans);
- return 0;//ans;
- }
- ans = gProxII_Demod(DemodBuffer, &size);
- if (ans < 0) {
- if (g_debugMode) PrintAndLog("Error gProxII_Demod 1st Try: %d",ans);
- return ans;
- }
+ if (g_debugMode) PrintAndLog("Error gProxII_Demod");
+ return 0;
}
//got a good demod
uint32_t ByteStream[65] = {0x00};
//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 -1;
+ return 0;
}
continue;
}
PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",fmtLen);
}
PrintAndLog("Raw: %08x%08x%08x", raw1,raw2,raw3);
- setBiphaseDemodBuf(DemodBuffer+ans, 96);
+ setDemodBuf(DemodBuffer+ans, 96, 0);
return 1;
}
if (strlen(Cmd) > 14 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd)<2) {
PrintAndLog("Usage: data rawdemod [modulation] <help>|<options>");
- PrintAndLog(" [modulation] as 2 char, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2");
+ 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");
PrintAndLog(" <help> as 'h', prints the help for the specific modulation");
PrintAndLog(" <options> see specific modulation help for optional parameters");
PrintAndLog("");
PrintAndLog(" sample: data rawdemod fs h = print help for ask/raw demod");
PrintAndLog(" : data rawdemod fs = demod GraphBuffer using: fsk - autodetect");
+ PrintAndLog(" : data rawdemod ab = demod GraphBuffer using: ask/biphase - autodetect");
PrintAndLog(" : data rawdemod am = demod GraphBuffer using: ask/manchester - autodetect");
PrintAndLog(" : data rawdemod ar = demod GraphBuffer using: ask/raw - autodetect");
PrintAndLog(" : data rawdemod nr = demod GraphBuffer using: nrz/direct - autodetect");
int ans = 0;
if (cmdp == 'f' && cmdp2 == 's'){
ans = CmdFSKrawdemod(Cmd+3);
+ } else if(cmdp == 'a' && cmdp2 == 'b'){
+ ans = Cmdaskbiphdemod(Cmd+3);
} else if(cmdp == 'a' && cmdp2 == 'm'){
ans = Cmdaskmandemod(Cmd+3);
} else if(cmdp == 'a' && cmdp2 == 'r'){
projects / proxmark3-svn / blobdiff