// 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 <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 "crc16.h"
-#include "loclass/cipherutils.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=0;
size_t DemodBufferLen=0;
static int CmdHelp(const char *Cmd);
+int usage_data_printdemodbuf(void){
+ 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;
+}
+int usage_data_askem410xdemod(void){
+ PrintAndLog("Usage: data askem410xdemod [clock] <0|1> [maxError]");
+ PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
+ PrintAndLog(" <invert>, 1 for invert output");
+ PrintAndLog(" [set maximum allowed errors], default = 100.");
+ PrintAndLog("");
+ PrintAndLog(" sample: data askem410xdemod = demod an EM410x Tag ID from GraphBuffer");
+ PrintAndLog(" : data askem410xdemod 32 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32");
+ 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;
+}
+int usage_data_manrawdecode(void){
+ 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;
+}
+int usage_data_biphaserawdecode(void){
+ 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(" --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester");
+ 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;
+}
+int usage_data_rawdemod(void){
+ 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");
+ 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 specific to fsk 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");
+ PrintAndLog(" : data rawdemod p1 = demod GraphBuffer using: psk1 - autodetect");
+ PrintAndLog(" : data rawdemod p2 = demod GraphBuffer using: psk2 - autodetect");
+ return 0;
+}
+int usage_data_rawdemod_am(void){
+ 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 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data");
+ PrintAndLog(" : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data");
+ 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;
+}
+int usage_data_rawdemod_ab(void){
+ 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(" NOTE: any other arg must have previous args set to work");
+ 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 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;
+}
+int usage_data_rawdemod_ar(void){
+ 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 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;
+}
+int usage_data_rawdemod_fs(void){
+ 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(" [fchigh], larger field clock length, omit for autodetect");
+ PrintAndLog(" [fclow], small field clock length, omit for autodetect");
+ PrintAndLog("");
+ PrintAndLog(" sample: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect");
+ PrintAndLog(" : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc");
+ PrintAndLog(" : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output");
+ PrintAndLog(" : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc");
+ PrintAndLog(" : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer");
+ PrintAndLog(" : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer");
+ PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");
+ return 0;
+}
+int usage_data_rawdemod_nr(void){
+ 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(" [set maximum allowed errors], default = 100.");
+ PrintAndLog("");
+ PrintAndLog(" sample: data rawdemod nr = demod a nrz/direct tag from GraphBuffer");
+ PrintAndLog(" : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32");
+ PrintAndLog(" : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data");
+ PrintAndLog(" : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data");
+ 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;
+}
+int usage_data_rawdemod_p1(void){
+ 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(" [set maximum allowed errors], default = 100.");
+ PrintAndLog("");
+ PrintAndLog(" sample: data rawdemod p1 = demod a psk1 tag from GraphBuffer");
+ PrintAndLog(" : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32");
+ PrintAndLog(" : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data");
+ PrintAndLog(" : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data");
+ 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;
+}
+int usage_data_rawdemod_p2(void){
+ 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(" [set maximum allowed errors], default = 100.");
+ PrintAndLog("");
+ PrintAndLog(" sample: data rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock");
+ PrintAndLog(" : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32");
+ PrintAndLog(" : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output");
+ PrintAndLog(" : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and 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;
+}
+int usage_data_autocorr(void) {
+ PrintAndLog("Usage: data autocorr [window] [g]");
+ PrintAndLog("Options:");
+ PrintAndLog(" h This help");
+ PrintAndLog(" [window] window length for correlation - default = 4000");
+ PrintAndLog(" g save back to GraphBuffer (overwrite)");
+ return 0;
+}
+int usage_data_undecimate(void){
+ PrintAndLog("Usage: data undec [factor]");
+ PrintAndLog("This function performs un-decimation, by repeating each sample N times");
+ PrintAndLog("Options: ");
+ PrintAndLog(" h This help");
+ PrintAndLog(" factor The number of times to repeat each sample.[default:2]");
+ PrintAndLog("Example: 'data undec 3'");
+ return 0;
+}
+int usage_data_detectclock(void){
+ 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");
+ PrintAndLog(" data detectclock f = detect the clock of an fsk modulated wave in the GraphBuffer");
+ PrintAndLog(" data detectclock p = detect the clock of an psk modulated wave in the GraphBuffer");
+ PrintAndLog(" data detectclock n = detect the clock of an nrz/direct modulated wave in the GraphBuffer");
+ return 0;
+}
+int usage_data_hex2bin(void){
+ PrintAndLog("Usage: data hex2bin <hex_digits>");
+ PrintAndLog(" This function will ignore all non-hexadecimal characters (but stop reading on whitespace)");
+ return 0;
+}
+int usage_data_bin2hex(void){
+ PrintAndLog("Usage: data bin2hex <binary_digits>");
+ PrintAndLog(" This function will ignore all characters not 1 or 0 (but stop reading on whitespace)");
+ return 0;
+}
+
//set the demod buffer with given array of binary (one bit per byte)
//by marshmellow
void setDemodBuf(uint8_t *buff, size_t size, size_t startIdx)
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)
{
}
if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty
- char *bin = sprint_bin_break(DemodBuffer,bitLen,16);
+ char *bin = sprint_bin_break(DemodBuffer, bitLen,16);
PrintAndLog("%s",bin);
return;
int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo, bool verbose)
{
- if (!ASKDemod(Cmd, FALSE, FALSE, 1)) return 0;
+ bool st = TRUE;
+ if (!ASKDemod_ext(Cmd, FALSE, FALSE, 1, &st)) return 0;
return AskEm410xDecode(verbose, hi, lo);
}
int CmdAskEM410xDemod(const char *Cmd)
{
char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
- PrintAndLog("Usage: data askem410xdemod [clock] <0|1> [maxError]");
- PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
- PrintAndLog(" <invert>, 1 for invert output");
- PrintAndLog(" [set maximum allowed errors], default = 100.");
- PrintAndLog("");
- PrintAndLog(" sample: data askem410xdemod = demod an EM410x Tag ID from GraphBuffer");
- PrintAndLog(" : data askem410xdemod 32 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32");
- 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;
- }
+ if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H')
+ return usage_data_askem410xdemod();
+
uint64_t lo = 0;
uint32_t hi = 0;
return AskEm410xDemod(Cmd, &hi, &lo, true);
//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(const char *Cmd, bool verbose, bool emSearch, uint8_t askType)
-{
+int ASKDemod_ext(const char *Cmd, bool verbose, bool emSearch, uint8_t askType, bool *stCheck) {
int invert=0;
int clk=0;
int maxErr=100;
if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen);
if (BitLen<255) return 0;
if (maxLen<BitLen && maxLen != 0) BitLen = maxLen;
-
+ int foundclk = 0;
+ bool st = false;
+ if (*stCheck) st = DetectST(BitStream, &BitLen, &foundclk);
+ if (st) {
+ *stCheck = st;
+ clk = (clk == 0) ? foundclk : clk;
+ if (verbose || g_debugMode) PrintAndLog("\nFound Sequence Terminator");
+ }
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 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 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
int Cmdaskmandemod(const char *Cmd)
{
char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') {
- PrintAndLog("Usage: data rawdemod am [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 (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 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data");
- PrintAndLog(" : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data");
- 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;
- }
+ if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H')
+ return usage_data_rawdemod_am();
+
+ 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);
}
int invert=0;
int maxErr = 20;
char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 5 || cmdp == 'h' || cmdp == 'H') {
- 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;
- }
+ if (strlen(Cmd) > 5 || cmdp == 'h' || cmdp == 'H')
+ return usage_data_manrawdecode();
+
if (DemodBufferLen==0) return 0;
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
int high=0,low=0;
size_t size=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] [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(" --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester");
- 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;
- }
+ if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H')
+ return usage_data_biphaserawdecode();
+
sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr);
if (DemodBufferLen==0){
PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first");
sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr);
uint8_t BitStream[MAX_DEMOD_BUF_LEN];
- size_t size = getFromGraphBuf(BitStream);
+ size_t size = getFromGraphBuf(BitStream);
+ if (size == 0 ) {
+ if (g_debugMode) PrintAndLog("DEBUG: no data in graphbuf");
+ return 0;
+ }
//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 ) {
int Cmdaskbiphdemod(const char *Cmd)
{
char cmdp = param_getchar(Cmd, 0);
- 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(" NOTE: any other arg must have previous args set to work");
- 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 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;
- }
+ if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H')
+ return usage_data_rawdemod_ab();
+
return ASKbiphaseDemod(Cmd, TRUE);
}
int CmdG_Prox_II_Demod(const char *Cmd)
{
if (!ASKbiphaseDemod(Cmd, FALSE)){
- if (g_debugMode) PrintAndLog("ASKbiphaseDemod failed 1st try");
+ 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);
+ 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;
}
- 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++;
- }
- }
- 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);
//call lfdemod.c demod for Viking
int ans = VikingDemod_AM(DemodBuffer, &size);
if (ans < 0) {
- if (g_debugMode) PrintAndLog("Error Viking_Demod %d", ans);
+ if (g_debugMode) PrintAndLog("Error Viking_Demod %d %s", ans, (ans == -5)?"[chksum error]":"");
return 0;
}
//got a good demod
int Cmdaskrawdemod(const char *Cmd)
{
char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 25 || 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 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;
- }
+ if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H')
+ return usage_data_rawdemod_ar();
+
return ASKDemod(Cmd, TRUE, FALSE, 0);
}
return Correlation;
}
-int usage_data_autocorr(void)
-{
- //print help
- PrintAndLog("Usage: data autocorr [window] [g]");
- PrintAndLog("Options: ");
- PrintAndLog(" h This help");
- PrintAndLog(" [window] window length for correlation - default = 4000");
- PrintAndLog(" g save back to GraphBuffer (overwrite)");
- return 0;
-}
-
int CmdAutoCorr(const char *Cmd)
{
char cmdp = param_getchar(Cmd, 0);
- if (cmdp == 'h' || cmdp == 'H')
- return usage_data_autocorr();
+ if (cmdp == 'h' || cmdp == 'H') return usage_data_autocorr();
int window = 4000; //set default
char grph=0;
bool updateGrph = FALSE;
int cnt = 0;
uint8_t got[12288];
- GetFromBigBuf(got,sizeof(got),0);
- WaitForResponse(CMD_ACK,NULL);
+ GetFromBigBuf(got, sizeof(got), 0);
+ WaitForResponse(CMD_ACK, NULL);
- for (int j = 0; j < sizeof(got); j++) {
- for (int k = 0; k < 8; k++) {
- if(got[j] & (1 << (7 - k))) {
- GraphBuffer[cnt++] = 1;
- } else {
- GraphBuffer[cnt++] = 0;
- }
+ for (int j = 0; j < sizeof(got); j++) {
+ for (int k = 0; k < 8; k++) {
+ if(got[j] & (1 << (7 - k))) {
+ GraphBuffer[cnt++] = 1;
+ } else {
+ GraphBuffer[cnt++] = 0;
}
+ }
}
GraphTraceLen = cnt;
RepaintGraphWindow();
int CmdBuffClear(const char *Cmd)
{
- UsbCommand c = {CMD_BUFF_CLEAR};
+ UsbCommand c = {CMD_BUFF_CLEAR, {0,0,0}};
SendCommand(&c);
ClearGraph(true);
return 0;
int CmdDec(const char *Cmd)
{
- for (int i = 0; i < (GraphTraceLen / 2); ++i)
+ for (int i = 0; i < (GraphTraceLen >> 2); ++i)
GraphBuffer[i] = GraphBuffer[i * 2];
- GraphTraceLen /= 2;
+
+ GraphTraceLen >>= 2;
PrintAndLog("decimated by 2");
RepaintGraphWindow();
return 0;
*/
int CmdUndec(const char *Cmd)
{
- if(param_getchar(Cmd, 0) == 'h')
- {
- PrintAndLog("Usage: data undec [factor]");
- PrintAndLog("This function performs un-decimation, by repeating each sample N times");
- PrintAndLog("Options: ");
- PrintAndLog(" h This help");
- PrintAndLog(" factor The number of times to repeat each sample.[default:2]");
- PrintAndLog("Example: 'data undec 3'");
- return 0;
- }
+ char cmdp = param_getchar(Cmd, 0);
+ if (cmdp == 'h' || cmdp == 'H')
+ return usage_data_undecimate();
+
+ uint8_t factor = param_get8ex(Cmd, 0, 2, 10);
- 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)
+ 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;
//shift graph zero up or down based on input + or -
int CmdGraphShiftZero(const char *Cmd)
{
-
int shift=0;
//set options from parameters entered with the command
sscanf(Cmd, "%i", &shift);
int CmdAskEdgeDetect(const char *Cmd)
{
int thresLen = 25;
+ int last = 0;
sscanf(Cmd, "%i", &thresLen);
- for(int i = 1; i<GraphTraceLen; i++){
- if (GraphBuffer[i]-GraphBuffer[i-1]>=thresLen) //large jump up
- GraphBuffer[i-1] = 127;
- else if(GraphBuffer[i]-GraphBuffer[i-1]<=-1*thresLen) //large jump down
- GraphBuffer[i-1] = -127;
+ for(int i = 1; i < GraphTraceLen; ++i){
+ if (GraphBuffer[i] - GraphBuffer[i-1] >= thresLen) //large jump up
+ last = 127;
+ else if(GraphBuffer[i] - GraphBuffer[i-1] <= -1 * thresLen) //large jump down
+ last = -127;
+
+ GraphBuffer[i-1] = last;
}
RepaintGraphWindow();
return 0;
int CmdDetectClockRate(const char *Cmd)
{
char cmdp = param_getchar(Cmd, 0);
- 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");
- PrintAndLog(" data detectclock f = detect the clock of an fsk modulated wave in the GraphBuffer");
- PrintAndLog(" data detectclock p = detect the clock of an psk modulated wave in the GraphBuffer");
- PrintAndLog(" data detectclock n = detect the clock of an nrz/direct modulated wave in the GraphBuffer");
- }
- int ans=0;
- if (cmdp == 'a'){
- ans = GetAskClock(Cmd+1, true, false);
- } else if (cmdp == 'f'){
- ans = GetFskClock("", true, false);
- } else if (cmdp == 'n'){
- ans = GetNrzClock("", true, false);
- } else if (cmdp == 'p'){
- ans = GetPskClock("", true, false);
- } else {
- PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help");
+ if (strlen(Cmd) > 6 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H')
+ return usage_data_detectclock();
+
+ int ans = 0;
+ switch ( cmdp ) {
+ case 'a' :
+ case 'A' :
+ ans = GetAskClock(Cmd+1, true, false);
+ break;
+ case 'f' :
+ case 'F' :
+ ans = GetFskClock("", true, false);
+ break;
+ case 'n' :
+ case 'N' :
+ ans = GetNrzClock("", true, false);
+ break;
+ case 'p' :
+ case 'P' :
+ ans = GetPskClock("", true, false);
+ break;
+ default :
+ PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help");
+ break;
}
return ans;
}
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;
}
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
- uint8_t fc1=0, fc2=0, rf1=0;
+ uint16_t fcs=0;
if (!fchigh || !fclow) {
- uint8_t ans = fskClocks(&fc1, &fc2, &rf1, false);
- if (ans == 0) {
- if (g_debugMode) PrintAndLog("\nError: cannot detect valid fsk field clocks");
- return 0; // can't detect field clock
+ fcs = countFC(BitStream, BitLen, 1);
+ if (!fcs) {
+ fchigh = 10;
+ fclow = 8;
+ } else {
+ fchigh = (fcs >> 8) & 0x00FF;
+ fclow = fcs & 0x00FF;
}
- fchigh = fc1;
- fclow = fc2;
- if (rfLen == 0) rfLen = rf1;
}
//get bit clock length
- if (!rfLen){
+ if (!rfLen) {
rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow);
if (!rfLen) rfLen = 50;
}
int size = fskdemod(BitStream, BitLen, rfLen, invert, fchigh, fclow);
- if (size > 0){
+ 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:%u, invert:%u, fchigh:%u, fclow:%u", 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();
}
int CmdFSKrawdemod(const char *Cmd)
{
char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 10 || 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(" [fchigh], larger field clock length, omit for autodetect");
- PrintAndLog(" [fclow], small field clock length, omit for autodetect");
- PrintAndLog("");
- PrintAndLog(" sample: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect");
- PrintAndLog(" : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc");
- PrintAndLog(" : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output");
- PrintAndLog(" : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc");
- PrintAndLog(" : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer");
- PrintAndLog(" : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer");
- PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");
- return 0;
- }
+ if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H')
+ return usage_data_rawdemod_fs();
+
return FSKrawDemod(Cmd, TRUE);
}
//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!
// 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
// bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
// |26 bit| |-117--| |-----142------|
+ //
+ // 00110010 0 0000111110100000 00000000000100010010100010000111 1 000000000
+ // bbbbbbbb w ffffffffffffffff cccccccccccccccccccccccccccccccc w xxxxxxxxx
+ // |50 bit| |----4000------| |-----------2248975------------|
// b = format bit len, o = odd parity of last 3 bits
// f = facility code, c = card number
// w = wiegand parity
- // (26 bit format shown)
uint32_t fc = 0;
uint32_t cardnum = 0;
uint32_t code1 = 0;
uint32_t code2 = 0;
- uint8_t fmtLen = bytebits_to_byte(BitStream,8);
- if (fmtLen==26){
- fc = bytebits_to_byte(BitStream+9, 8);
- cardnum = bytebits_to_byte(BitStream+17, 16);
- code1 = bytebits_to_byte(BitStream+8,fmtLen);
- PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);
- } else {
- cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
- if (fmtLen>32){
- code1 = bytebits_to_byte(BitStream+8,fmtLen-32);
- code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);
- PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
- } else{
- code1 = bytebits_to_byte(BitStream+8,fmtLen);
- PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);
- }
+ uint8_t fmtLen = bytebits_to_byte(BitStream, 8);
+ switch(fmtLen) {
+ case 26:
+ fc = bytebits_to_byte(BitStream + 9, 8);
+ cardnum = bytebits_to_byte(BitStream + 17, 16);
+ code1 = bytebits_to_byte(BitStream + 8,fmtLen);
+ PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);
+ break;
+ case 50:
+ fc = bytebits_to_byte(BitStream + 9, 16);
+ cardnum = bytebits_to_byte(BitStream + 25, 32);
+ code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
+ code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
+ PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
+ break;
+ default:
+ if (fmtLen > 32 ) {
+ cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
+ code1 = bytebits_to_byte(BitStream+8,fmtLen-32);
+ code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);
+ PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%u) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
+ } else {
+ cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
+ code1 = bytebits_to_byte(BitStream+8,fmtLen);
+ PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%u) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);
+ }
+ break;
}
+
if (g_debugMode){
PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx, 96);
printDemodBuff();
}
- //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands
return 1;
}
//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)
// s = format start bit, o = odd parity of last 7 bits
// f = facility code, c = card number
// w = wiegand parity, x = extra space for other formats
- // p = unknown checksum
+ // p = CRC8maxim checksum
// (26 bit format shown)
//get bytes for checksum calc
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;
}
// s = format start bit, o = odd parity of last 7 bits
// f = facility code, c = card number
// w = wiegand parity, x = extra space for other formats
- // p = unknown checksum
+ // p = CRC8-Maxim checksum
// (26 bit format shown)
//find start bit to get fmtLen
int j;
- for (j=0; j<size; j++){
+ for (j=0; j < size; ++j){
if(BitStream[j]) break;
}
+
uint8_t fmtLen = size-j-8;
uint32_t fc = 0;
uint32_t cardnum = 0;
uint32_t code1 = 0;
- if (fmtLen==26){
+
+ if ( fmtLen == 26 ){
fc = bytebits_to_byte(BitStream+73, 8);
cardnum = bytebits_to_byte(BitStream+81, 16);
code1 = bytebits_to_byte(BitStream+72,fmtLen);
PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi3, rawHi2, rawHi, rawLo);
- } else if (fmtLen==45){
- fmtLen=42; //end = 10 bits not 7 like 26 bit fmt
+ } else if (fmtLen == 45) {
+ fmtLen = 42; //end = 10 bits not 7 like 26 bit fmt
fc = bytebits_to_byte(BitStream+53, 10);
cardnum = bytebits_to_byte(BitStream+63, 32);
PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
} else {
cardnum = bytebits_to_byte(BitStream+81, 16);
- if (fmtLen>32){
- //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32);
- //code2 = bytebits_to_byte(BitStream+(size-32),32);
- PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
- } else{
- //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen);
- PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
- }
+ PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
}
if (checksum == checkCS)
PrintAndLog("Checksum %02x passed", checksum);
}
if (!ans){
- if (g_debugMode==1)
+ if (g_debugMode)
PrintAndLog("Error1: %d",ans);
return 0;
}
uint8_t invert=0;
size_t size = DemodBufferLen;
- size_t startIdx = indala26decode(DemodBuffer, &size, &invert);
- if (startIdx < 1 || size > 224) {
- if (g_debugMode==1)
+ int startIdx = indala26decode(DemodBuffer, &size, &invert);
+ if (startIdx < 0 || size > 224) {
+ if (g_debugMode)
PrintAndLog("Error2: %d",ans);
return -1;
}
- setDemodBuf(DemodBuffer, size, startIdx);
+ setDemodBuf(DemodBuffer, size, (size_t)startIdx);
if (invert)
- if (g_debugMode==1)
+ if (g_debugMode)
PrintAndLog("Had to invert bits");
PrintAndLog("BitLen: %d",DemodBufferLen);
int CmdNRZrawDemod(const char *Cmd)
{
char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 10 || 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(" [set maximum allowed errors], default = 100.");
- PrintAndLog("");
- PrintAndLog(" sample: data rawdemod nr = demod a nrz/direct tag from GraphBuffer");
- PrintAndLog(" : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32");
- PrintAndLog(" : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data");
- PrintAndLog(" : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data");
- 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;
- }
+ if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H')
+ return usage_data_rawdemod_nr();
+
return NRZrawDemod(Cmd, TRUE);
}
{
int ans;
char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 10 || 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(" [set maximum allowed errors], default = 100.");
- PrintAndLog("");
- PrintAndLog(" sample: data rawdemod p1 = demod a psk1 tag from GraphBuffer");
- PrintAndLog(" : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32");
- PrintAndLog(" : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data");
- PrintAndLog(" : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data");
- 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;
- }
+ if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H')
+ return usage_data_rawdemod_p1();
+
ans = PSKDemod(Cmd, TRUE);
//output
if (!ans){
{
int ans=0;
char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 10 || 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(" [set maximum allowed errors], default = 100.");
- PrintAndLog("");
- PrintAndLog(" sample: data rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock");
- PrintAndLog(" : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32");
- PrintAndLog(" : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output");
- PrintAndLog(" : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and 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;
- }
+ if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H')
+ return usage_data_rawdemod_p2();
+
ans=PSKDemod(Cmd, TRUE);
if (!ans){
if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
int CmdRawDemod(const char *Cmd)
{
char cmdp = Cmd[0]; //param_getchar(Cmd, 0);
-
- if (strlen(Cmd) > 20 || 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");
- 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 specific to fsk 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");
- PrintAndLog(" : data rawdemod p1 = demod GraphBuffer using: psk1 - autodetect");
- PrintAndLog(" : data rawdemod p2 = demod GraphBuffer using: psk2 - autodetect");
- return 0;
- }
char cmdp2 = Cmd[1];
int ans = 0;
- if (cmdp == 'f' && cmdp2 == 's'){
+
+ if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd) < 2)
+ return usage_data_rawdemod();
+
+ if (cmdp == 'f' && cmdp2 == 's')
ans = CmdFSKrawdemod(Cmd+2);
- } else if(cmdp == 'a' && cmdp2 == 'b'){
+ else if(cmdp == 'a' && cmdp2 == 'b')
ans = Cmdaskbiphdemod(Cmd+2);
- } else if(cmdp == 'a' && cmdp2 == 'm'){
+ else if(cmdp == 'a' && cmdp2 == 'm')
ans = Cmdaskmandemod(Cmd+2);
- } else if(cmdp == 'a' && cmdp2 == 'r'){
+ else if(cmdp == 'a' && cmdp2 == 'r')
ans = Cmdaskrawdemod(Cmd+2);
- } else if(cmdp == 'n' && cmdp2 == 'r'){
+ else if(cmdp == 'n' && cmdp2 == 'r')
ans = CmdNRZrawDemod(Cmd+2);
- } else if(cmdp == 'p' && cmdp2 == '1'){
+ else if(cmdp == 'p' && cmdp2 == '1')
ans = CmdPSK1rawDemod(Cmd+2);
- } else if(cmdp == 'p' && cmdp2 == '2'){
+ else if(cmdp == 'p' && cmdp2 == '2')
ans = CmdPSK2rawDemod(Cmd+2);
- } else {
+ else
PrintAndLog("unknown modulation entered - see help ('h') for parameter structure");
- }
+
return ans;
}
-
+//iceman: diff sizes on the plotwindow?
int CmdGrid(const char *Cmd)
{
sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY);
- PlotGridXdefault= PlotGridX;
- PlotGridYdefault= PlotGridY;
+ PlotGridXdefault = PlotGridX;
+ PlotGridYdefault = PlotGridY;
RepaintGraphWindow();
return 0;
}
for (i = 10; i < GraphTraceLen; ++i)
accum += GraphBuffer[i];
+
accum /= (GraphTraceLen - 10);
+
for (i = 0; i < GraphTraceLen; ++i)
GraphBuffer[i] -= accum;
{
int i;
uint8_t val = 0;
- for(i =0 ; i < bits_per_sample; i++)
- {
+ for(i = 0 ; i < bits_per_sample; i++)
val |= (_headBit(b) << (7-i));
- }
+
return val;
}
uint8_t bits_per_sample = 8;
//Old devices without this feature would send 0 at arg[0]
- if(response.arg[0] > 0)
- {
+ if (response.arg[0] > 0) {
sample_config *sc = (sample_config *) response.d.asBytes;
PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample, sc->decimation);
bits_per_sample = sc->bits_per_sample;
}
- if(bits_per_sample < 8)
- {
+
+ if (bits_per_sample < 8) {
PrintAndLog("Unpacking...");
BitstreamOut bout = { got, bits_per_sample * n, 0};
int j =0;
}
GraphTraceLen = j;
PrintAndLog("Unpacked %d samples" , j );
- }else
- {
+ } else {
for (int j = 0; j < n; j++) {
GraphBuffer[j] = ((int)got[j]) - 128;
}
clearCommandBuffer();
SendCommand(&c);
UsbCommand resp;
- while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING,&resp,1000)) {
+ while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING, &resp, 2000)) {
timeout++;
printf(".");
if (timeout > 7) {
return 0;
}
-
int CmdLoad(const char *Cmd)
{
char filename[FILE_PATH_SIZE] = {0x00};
int max = INT_MIN, min = INT_MAX;
for (i = 10; i < GraphTraceLen; ++i) {
- if (GraphBuffer[i] > max)
- max = GraphBuffer[i];
- if (GraphBuffer[i] < min)
- min = GraphBuffer[i];
+ if (GraphBuffer[i] > max) max = GraphBuffer[i];
+ if (GraphBuffer[i] < min) min = GraphBuffer[i];
}
if (max != min) {
for (i = 0; i < GraphTraceLen; ++i) {
- GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 /
- (max - min);
- //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
+ GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 / (max - min);
+ //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
}
}
RepaintGraphWindow();
{
lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
GraphBuffer[i] = GraphBuffer[i-1];
-
}
}
GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample.
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
{
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;
memset(arr, 0, bytelen);
BitstreamOut bout = { arr, 0, 0 };
- for(; bg <= en ;bg++)
- {
+ 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)
- {
+ 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();
- }
-
+ if(param_getptr(Cmd, &bg, &en, 0)) return usage_data_hex2bin();
- while(bg <= en )
- {
+ while (bg <= en ) {
char x = Cmd[bg++];
// capitalize
if (x >= 'a' && x <= 'f')
return 0;
}
+int CmdDataIIR(const char *Cmd){
+ iceIIR_Butterworth(GraphBuffer, GraphTraceLen);
+ RepaintGraphWindow();
+ return 0;
+}
+
static command_t CommandTable[] =
{
{"help", CmdHelp, 1, "This help"},
{"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"},
{"undec", CmdUndec, 1, "Un-decimate samples by 2"},
{"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"},
+ {"iir", CmdDataIIR, 0, "apply IIR buttersworth filter on plotdata"},
{NULL, NULL, 0, NULL}
};
-int CmdData(const char *Cmd)
-{
+int CmdData(const char *Cmd){
+ clearCommandBuffer();
CmdsParse(CommandTable, Cmd);
return 0;
}
projects / proxmark3-svn / blobdiff