X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/b8d34d0598d48ed365053acc2830f1b883c732a0..refs/pull/148/head:/client/cmddata.c?ds=inline
diff --git a/client/cmddata.c b/client/cmddata.c
index bec1b5aa..4dd08008 100644
--- a/client/cmddata.c
+++ b/client/cmddata.c
@@ -24,10 +24,11 @@
#include "usb_cmd.h"
#include "crc.h"
#include "crc16.h"
+#include "loclass/cipherutils.h"
uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
-uint8_t g_debugMode;
-size_t 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)
@@ -636,6 +637,32 @@ int CmdG_Prox_II_Demod(const char *Cmd)
return 1;
}
+//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, checksum);
+ PrintAndLog("Raw: %08X%08X", raw1,raw2);
+ setDemodBuf(DemodBuffer+ans, 64, 0);
+ return 1;
+}
+
//by marshmellow - see ASKDemod
int Cmdaskrawdemod(const char *Cmd)
{
@@ -1129,8 +1156,6 @@ int CmdFSKdemodParadox(const char *Cmd)
//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) {
@@ -1219,11 +1244,6 @@ int CmdFSKdemodIO(const char *Cmd)
//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;
@@ -1422,7 +1442,6 @@ int CmdFSKdemodPyramid(const char *Cmd)
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);
@@ -1488,12 +1507,16 @@ int CmdFDXBdemodBI(const char *Cmd){
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 but don't verify parity. (pType = 2)
+ // remove marker bits (1's every 9th digit after preamble) (pType = 2)
size = removeParity(BitStream, preambleIndex + 11, 9, 2, 117);
- if ( size <= 103 ) {
+ if ( size != 104 ) {
if (g_debugMode) PrintAndLog("Error removeParity:: %d", size);
return 0;
}
@@ -1596,61 +1619,33 @@ int CmdIndalaDecode(const char *Cmd)
return 0;
}
uint8_t invert=0;
- ans = indala26decode(DemodBuffer, &DemodBufferLen, &invert);
- if (ans < 1) {
+ size_t size = DemodBufferLen;
+ size_t startIdx = indala26decode(DemodBuffer, &size, &invert);
+ if (startIdx < 1) {
if (g_debugMode==1)
PrintAndLog("Error2: %d",ans);
return -1;
}
- char showbits[251]={0x00};
+ setDemodBuf(DemodBuffer, size, startIdx);
if (invert)
if (g_debugMode==1)
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(DemodBuffer,DemodBufferLen), 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(DemodBuffer,DemodBufferLen), uid1, uid2, uid3, uid4, uid5, uid6, uid7);
}
if (g_debugMode){
PrintAndLog("DEBUG: printing demodbuffer:");
@@ -1720,7 +1715,7 @@ int NRZrawDemod(const char *Cmd, bool verbose)
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;
@@ -1943,26 +1938,14 @@ int CmdHpf(const char *Cmd)
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;
}
@@ -2002,7 +1985,7 @@ int getSamples(const char *Cmd, bool silent)
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 < n; j++) {
uint8_t sample = getByte(bits_per_sample, &bout);
@@ -2265,14 +2248,109 @@ int CmdZerocrossings(const char *Cmd)
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 bin2hex <binary_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)"},
+ {"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"},
@@ -2287,6 +2365,7 @@ static command_t CommandTable[] =
{"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"},