X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/1fe0992d069311ad3647edd87366e7a22922013d..b98827ffc3b2d8ced5e750d763f077c509641e5c:/client/cmddata.c?ds=sidebyside diff --git a/client/cmddata.c b/client/cmddata.c index e3226a77..eb12fc84 100644 --- a/client/cmddata.c +++ b/client/cmddata.c @@ -8,29 +8,242 @@ // Data and Graph commands //----------------------------------------------------------------------------- -#include -#include -#include -#include -#include "proxmark3.h" -#include "data.h" -#include "ui.h" -#include "graph.h" -#include "cmdparser.h" +#include // also included in util.h +#include // also included in util.h +#include // 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 l "); + PrintAndLog("Options:"); + PrintAndLog(" h This help"); + PrintAndLog(" x output in hex (omit for binary output)"); + PrintAndLog(" o enter offset in # of bits"); + PrintAndLog(" l 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(" , 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] |"); + 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(" as 'h', prints the help for the specific modulation"); + PrintAndLog(" 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 [clock] [maxError] [maxLen] [amplify]"); + PrintAndLog(" ['s'] optional, check for Sequence Terminator"); + PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); + PrintAndLog(" , 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(" , '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] [maxError] [maxLen] "); + PrintAndLog(" [offset], offset to begin biphase, default=0"); + PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); + PrintAndLog(" , 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(" , 'a' to attempt demod with ask amplification, default = no amp"); + PrintAndLog(" NOTE: can be entered as second or third argument"); + PrintAndLog(" NOTE: 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] [maxError] [maxLen] [amplify]"); + PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); + PrintAndLog(" , 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(" , '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] [fchigh] [fclow]"); + PrintAndLog(" [set clock as integer] optional, omit for autodetect."); + PrintAndLog(" , 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(" , 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(" , 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(" , 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] "); + PrintAndLog(" [modulation as char], specify the modulation type you want to detect the clock of"); + PrintAndLog(" , 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 "); + 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 "); + 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) @@ -45,8 +258,7 @@ void setDemodBuf(uint8_t *buff, size_t size, size_t startIdx) for (; i < size; i++){ DemodBuffer[i]=buff[startIdx++]; } - DemodBufferLen=size; - return; + DemodBufferLen = size; } int CmdSetDebugMode(const char *Cmd) @@ -57,16 +269,6 @@ int CmdSetDebugMode(const char *Cmd) return 1; } -int usage_data_printdemodbuf(){ - PrintAndLog("Usage: data printdemodbuffer x o l "); - PrintAndLog("Options:"); - PrintAndLog(" h This help"); - PrintAndLog(" x output in hex (omit for binary output)"); - PrintAndLog(" o enter offset in # of bits"); - PrintAndLog(" l enter length to print in # of bits or hex characters respectively"); - return 0; -} - //by marshmellow void printDemodBuff(void) { @@ -77,7 +279,7 @@ 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; @@ -277,7 +479,8 @@ int AskEm410xDecode(bool verbose, uint32_t *hi, uint64_t *lo ) 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); } @@ -288,19 +491,9 @@ int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo, bool verbose) 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(" , 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); @@ -312,8 +505,7 @@ int CmdAskEM410xDemod(const char *Cmd) //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; @@ -336,7 +528,14 @@ int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType) if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen); if (BitLen<255) return 0; if (maxLen 25 || cmdp == 'h' || cmdp == 'H') { - PrintAndLog("Usage: data rawdemod am [clock] [maxError] [maxLen] [amplify]"); - PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); - PrintAndLog(" , 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(" , '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); } @@ -402,16 +599,9 @@ int Cmdmandecoderaw(const char *Cmd) 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; @@ -459,20 +649,9 @@ int CmdBiphaseDecodeRaw(const char *Cmd) 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"); @@ -510,7 +689,11 @@ int ASKbiphaseDemod(const char *Cmd, bool verbose) 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 ) { @@ -540,29 +723,9 @@ int ASKbiphaseDemod(const char *Cmd, bool verbose) 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] [maxError] [maxLen] "); - PrintAndLog(" [offset], offset to begin biphase, default=0"); - PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); - PrintAndLog(" , 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(" , 'a' to attempt demod with ask amplification, default = no amp"); - PrintAndLog(" NOTE: can be entered as second or third argument"); - PrintAndLog(" NOTE: 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); } @@ -574,7 +737,7 @@ int Cmdaskbiphdemod(const char *Cmd) 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; @@ -584,46 +747,32 @@ int CmdG_Prox_II_Demod(const char *Cmd) 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>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); @@ -631,13 +780,14 @@ int CmdG_Prox_II_Demod(const char *Cmd) 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); @@ -656,7 +806,7 @@ int CmdVikingDemod(const char *Cmd) //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 @@ -674,23 +824,9 @@ int CmdVikingDemod(const char *Cmd) 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] [maxError] [maxLen] [amplify]"); - PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); - PrintAndLog(" , 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(" , '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); } @@ -738,22 +874,10 @@ int AutoCorrelate(int window, bool SaveGrph, bool verbose) 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; @@ -773,17 +897,17 @@ int CmdBitsamples(const char *Cmd) 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(); @@ -792,7 +916,7 @@ int CmdBitsamples(const char *Cmd) int CmdBuffClear(const char *Cmd) { - UsbCommand c = {CMD_BUFF_CLEAR}; + UsbCommand c = {CMD_BUFF_CLEAR, {0,0,0}}; SendCommand(&c); ClearGraph(true); return 0; @@ -800,9 +924,10 @@ int CmdBuffClear(const char *Cmd) 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; @@ -816,18 +941,12 @@ int CmdDec(const char *Cmd) */ 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); + //We have memory, don't we? int swap[MAX_GRAPH_TRACE_LEN] = { 0 }; uint32_t g_index = 0 ,s_index = 0; @@ -850,7 +969,6 @@ int CmdUndec(const char *Cmd) //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); @@ -874,13 +992,16 @@ int CmdGraphShiftZero(const char *Cmd) int CmdAskEdgeDetect(const char *Cmd) { int thresLen = 25; + int last = 0; sscanf(Cmd, "%i", &thresLen); - for(int i = 1; i=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; @@ -892,28 +1013,30 @@ int CmdAskEdgeDetect(const char *Cmd) 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] "); - PrintAndLog(" [modulation as char], specify the modulation type you want to detect the clock of"); - PrintAndLog(" , 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; } @@ -964,7 +1087,6 @@ int FSKrawDemod(const char *Cmd, bool verbose) uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; size_t BitLen = getFromGraphBuf(BitStream); if (BitLen==0) return 0; - if (g_debugMode==2) PrintAndLog("DEBUG: Got samples"); //get field clock lengths uint16_t fcs=0; if (!fchigh || !fclow) { @@ -1007,22 +1129,9 @@ int FSKrawDemod(const char *Cmd, bool verbose) 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] [fchigh] [fclow]"); - PrintAndLog(" [set clock as integer] optional, omit for autodetect."); - PrintAndLog(" , 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); } @@ -1261,7 +1370,7 @@ int CmdFSKdemodAWID(const char *Cmd) //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) @@ -1299,7 +1408,7 @@ int CmdFSKdemodAWID(const char *Cmd) 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! @@ -1312,37 +1421,51 @@ int CmdFSKdemodAWID(const char *Cmd) // 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; } @@ -1359,7 +1482,7 @@ int CmdFSKdemodPyramid(const char *Cmd) //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) @@ -1393,7 +1516,7 @@ int CmdFSKdemodPyramid(const char *Cmd) // 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 @@ -1415,7 +1538,7 @@ int CmdFSKdemodPyramid(const char *Cmd) 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; } @@ -1440,38 +1563,33 @@ int CmdFSKdemodPyramid(const char *Cmd) // 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; j32){ - //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); @@ -1638,21 +1756,22 @@ int CmdIndalaDecode(const char *Cmd) } if (!ans){ - if (g_debugMode==1) + if (g_debugMode) PrintAndLog("Error1: %d",ans); return 0; } - uint8_t invert=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); @@ -1681,12 +1800,18 @@ int CmdIndalaDecode(const char *Cmd) 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; + + // sanity check. + if ( size < sizeof(preamble) + 100) return 0; + 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; @@ -1764,19 +1889,9 @@ int NRZrawDemod(const char *Cmd, bool verbose) 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(" , 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); } @@ -1788,26 +1903,15 @@ int CmdPSK1rawDemod(const char *Cmd) { 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(" , 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){ if (g_debugMode) PrintAndLog("Error demoding: %d",ans); return 0; } - PrintAndLog("PSK1 demoded bitstream:"); // Now output the bitstream to the scrollback by line of 16 bits printDemodBuff(); @@ -1818,22 +1922,12 @@ int CmdPSK1rawDemod(const char *Cmd) // takes same args as cmdpsk1rawdemod int CmdPSK2rawDemod(const char *Cmd) { - int ans=0; + 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(" , 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; - } - ans=PSKDemod(Cmd, TRUE); + 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); return 0; @@ -1849,51 +1943,37 @@ int CmdPSK2rawDemod(const char *Cmd) 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] |"); - 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(" as 'h', prints the help for the specific modulation"); - PrintAndLog(" 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; } @@ -1955,7 +2035,9 @@ int CmdHpf(const char *Cmd) for (i = 10; i < GraphTraceLen; ++i) accum += GraphBuffer[i]; + accum /= (GraphTraceLen - 10); + for (i = 0; i < GraphTraceLen; ++i) GraphBuffer[i] -= accum; @@ -1974,10 +2056,9 @@ uint8_t getByte(uint8_t bits_per_sample, BitstreamOut* b) { 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; } @@ -2007,14 +2088,13 @@ int getSamples(const char *Cmd, bool silent) 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; @@ -2024,8 +2104,7 @@ int getSamples(const char *Cmd, bool silent) } GraphTraceLen = j; PrintAndLog("Unpacked %d samples" , j ); - }else - { + } else { for (int j = 0; j < n; j++) { GraphBuffer[j] = ((int)got[j]) - 128; } @@ -2067,10 +2146,14 @@ int CmdTuneSamples(const char *Cmd) peakf = resp.arg[2] & 0xffff; peakv = resp.arg[2] >> 16; PrintAndLog(""); - PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0); - PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0); - PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1)); - PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0); + if ( vLf125 > 0 ) + PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0); + if ( vLf134 > 0 ) + PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0); + if ( peakv > 0 && peakf > 0 ) + PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1)); + if ( vHf > 0 ) + PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0); #define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher. #define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher. @@ -2099,7 +2182,6 @@ int CmdTuneSamples(const char *Cmd) return 0; } - int CmdLoad(const char *Cmd) { char filename[FILE_PATH_SIZE] = {0x00}; @@ -2156,17 +2238,14 @@ int CmdNorm(const char *Cmd) 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(); @@ -2241,7 +2320,6 @@ int CmdDirectionalThreshold(const char *Cmd) { lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. GraphBuffer[i] = GraphBuffer[i-1]; - } } GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample. @@ -2278,12 +2356,6 @@ int CmdZerocrossings(const char *Cmd) return 0; } -int usage_data_bin2hex(){ - PrintAndLog("Usage: data bin2hex "); - 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 @@ -2293,9 +2365,8 @@ 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; @@ -2303,44 +2374,33 @@ int Cmdbin2hex(const char *Cmd) 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 hex2bin "); - 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 ) - { + while (bg <= en ) { char x = Cmd[bg++]; // capitalize if (x >= 'a' && x <= 'f') @@ -2365,20 +2425,29 @@ int Cmdhex2bin(const char *Cmd) return 0; } +int CmdDataIIR(const char *Cmd){ + + uint8_t k = param_get8(Cmd,0); + //iceIIR_Butterworth(GraphBuffer, GraphTraceLen); + iceSimple_Filter(GraphBuffer, GraphTraceLen, k); + RepaintGraphWindow(); + 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)"}, + {"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 AM 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 -- Converts binary to hexadecimal"}, + {"bin2hex", Cmdbin2hex, 1, " -- 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)"}, + {"detectclock", CmdDetectClockRate, 1, "[] Detect ASK, FSK, NRZ, PSK clock rate of wave in GraphBuffer"}, {"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"}, @@ -2389,7 +2458,7 @@ static command_t CommandTable[] = {"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"}, {"grid", CmdGrid, 1, " -- overlay grid on graph window, use zero value to turn off either"}, {"hexsamples", CmdHexsamples, 0, " [] -- Dump big buffer as hex bytes"}, - {"hex2bin", Cmdhex2bin, 1, "hex2bin -- Converts hexadecimal to binary"}, + {"hex2bin", Cmdhex2bin, 1, " -- Converts hexadecimal to binary"}, {"hide", CmdHide, 1, "Hide graph window"}, {"hpf", CmdHpf, 1, "Remove DC offset from trace"}, {"load", CmdLoad, 1, " -- Load trace (to graph window"}, @@ -2411,6 +2480,7 @@ static command_t CommandTable[] = {"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} };