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442 lines
12 KiB
C
442 lines
12 KiB
C
//-----------------------------------------------------------------------------
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// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>, Hagen Fritsch
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// Copyright (C) 2011 Gerhard de Koning Gans
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//
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// This code is licensed to you under the terms of the GNU GPL, version 2 or,
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// at your option, any later version. See the LICENSE.txt file for the text of
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// the license.
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//-----------------------------------------------------------------------------
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// High frequency iClass commands
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//-----------------------------------------------------------------------------
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "iso14443crc.h" // Can also be used for iClass, using 0xE012 as CRC-type
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#include "data.h"
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//#include "proxusb.h"
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#include "proxmark3.h"
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#include "ui.h"
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#include "cmdparser.h"
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#include "cmdhficlass.h"
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#include "common.h"
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#include "util.h"
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#include "cmdmain.h"
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static int CmdHelp(const char *Cmd);
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int xorbits_8(uint8_t val)
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{
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uint8_t res = val ^ (val >> 1); //1st pass
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res = res ^ (res >> 1); // 2nd pass
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res = res ^ (res >> 2); // 3rd pass
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res = res ^ (res >> 4); // 4th pass
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return res & 1;
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}
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int CmdHFiClassList(const char *Cmd)
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{
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bool ShowWaitCycles = false;
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char param = param_getchar(Cmd, 0);
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if (param != 0) {
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PrintAndLog("List data in trace buffer.");
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PrintAndLog("Usage: hf iclass list");
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PrintAndLog("h - help");
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PrintAndLog("sample: hf iclass list");
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return 0;
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}
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uint8_t got[1920];
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GetFromBigBuf(got,sizeof(got),0);
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WaitForResponse(CMD_ACK,NULL);
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PrintAndLog("Recorded Activity");
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PrintAndLog("");
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PrintAndLog("Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer");
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PrintAndLog("All times are in carrier periods (1/13.56Mhz)");
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PrintAndLog("");
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PrintAndLog(" Start | End | Src | Data");
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PrintAndLog("-----------|-----------|-----|--------");
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int i;
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uint32_t first_timestamp = 0;
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uint32_t timestamp;
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bool tagToReader;
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uint32_t parityBits;
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uint8_t len;
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uint8_t *frame;
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uint32_t EndOfTransmissionTimestamp = 0;
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for( i=0; i < 1900;)
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{
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//First 32 bits contain
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// isResponse (1 bit)
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// timestamp (remaining)
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//Then paritybits
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//Then length
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timestamp = *((uint32_t *)(got+i));
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parityBits = *((uint32_t *)(got+i+4));
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len = got[i+8];
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frame = (got+i+9);
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uint32_t next_timestamp = (*((uint32_t *)(got+i+9))) & 0x7fffffff;
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tagToReader = timestamp & 0x80000000;
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timestamp &= 0x7fffffff;
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if(i==0) {
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first_timestamp = timestamp;
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}
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// Break and stick with current result if buffer was not completely full
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if (frame[0] == 0x44 && frame[1] == 0x44 && frame[2] == 0x44 && frame[3] == 0x44) break;
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char line[1000] = "";
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if(len)//We have some data to display
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{
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int j,oddparity;
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for(j = 0; j < len ; j++)
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{
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oddparity = 0x01 ^ xorbits_8(frame[j] & 0xFF);
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if (tagToReader && (oddparity != ((parityBits >> (len - j - 1)) & 0x01))) {
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sprintf(line+(j*4), "%02x! ", frame[j]);
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} else {
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sprintf(line+(j*4), "%02x ", frame[j]);
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}
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}
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}else
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{
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if (ShowWaitCycles) {
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sprintf(line, "fdt (Frame Delay Time): %d", (next_timestamp - timestamp));
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}
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}
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char *crc = "";
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if(len > 2)
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{
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uint8_t b1, b2;
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if(!tagToReader && len == 4) {
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// Rough guess that this is a command from the reader
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// For iClass the command byte is not part of the CRC
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ComputeCrc14443(CRC_ICLASS, &frame[1], len-3, &b1, &b2);
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}
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else {
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// For other data.. CRC might not be applicable (UPDATE commands etc.)
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ComputeCrc14443(CRC_ICLASS, frame, len-2, &b1, &b2);
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}
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if (b1 != frame[len-2] || b2 != frame[len-1]) {
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crc = (tagToReader & (len < 8)) ? "" : " !crc";
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}
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}
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i += (len + 9);
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EndOfTransmissionTimestamp = (*((uint32_t *)(got+i))) & 0x7fffffff;
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// Not implemented for iclass on the ARM-side
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//if (!ShowWaitCycles) i += 9;
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PrintAndLog(" %9d | %9d | %s | %s %s",
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(timestamp - first_timestamp),
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(EndOfTransmissionTimestamp - first_timestamp),
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(len?(tagToReader ? "Tag" : "Rdr"):" "),
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line, crc);
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}
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return 0;
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}
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int CmdHFiClassListOld(const char *Cmd)
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{
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uint8_t got[1920];
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GetFromBigBuf(got,sizeof(got),0);
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PrintAndLog("recorded activity:");
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PrintAndLog(" ETU :rssi: who bytes");
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PrintAndLog("---------+----+----+-----------");
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int i = 0;
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int prev = -1;
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for (;;) {
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if(i >= 1900) {
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break;
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}
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bool isResponse;
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int timestamp = *((uint32_t *)(got+i));
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if (timestamp & 0x80000000) {
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timestamp &= 0x7fffffff;
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isResponse = 1;
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} else {
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isResponse = 0;
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}
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int metric = 0;
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int parityBits = *((uint32_t *)(got+i+4));
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// 4 bytes of additional information...
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// maximum of 32 additional parity bit information
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//
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// TODO:
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// at each quarter bit period we can send power level (16 levels)
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// or each half bit period in 256 levels.
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int len = got[i+8];
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if (len > 100) {
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break;
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}
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if (i + len >= 1900) {
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break;
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}
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uint8_t *frame = (got+i+9);
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// Break and stick with current result if buffer was not completely full
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if (frame[0] == 0x44 && frame[1] == 0x44 && frame[3] == 0x44) { break; }
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char line[1000] = "";
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int j;
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for (j = 0; j < len; j++) {
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int oddparity = 0x01;
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int k;
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for (k=0;k<8;k++) {
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oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01);
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}
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//if((parityBits >> (len - j - 1)) & 0x01) {
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if (isResponse && (oddparity != ((parityBits >> (len - j - 1)) & 0x01))) {
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sprintf(line+(j*4), "%02x! ", frame[j]);
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}
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else {
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sprintf(line+(j*4), "%02x ", frame[j]);
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}
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}
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char *crc;
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crc = "";
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if (len > 2) {
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uint8_t b1, b2;
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for (j = 0; j < (len - 1); j++) {
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// gives problems... search for the reason..
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/*if(frame[j] == 0xAA) {
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switch(frame[j+1]) {
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case 0x01:
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crc = "[1] Two drops close after each other";
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break;
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case 0x02:
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crc = "[2] Potential SOC with a drop in second half of bitperiod";
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break;
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case 0x03:
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crc = "[3] Segment Z after segment X is not possible";
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break;
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case 0x04:
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crc = "[4] Parity bit of a fully received byte was wrong";
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break;
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default:
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crc = "[?] Unknown error";
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break;
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}
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break;
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}*/
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}
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if (strlen(crc)==0) {
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if(!isResponse && len == 4) {
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// Rough guess that this is a command from the reader
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// For iClass the command byte is not part of the CRC
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ComputeCrc14443(CRC_ICLASS, &frame[1], len-3, &b1, &b2);
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}
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else {
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// For other data.. CRC might not be applicable (UPDATE commands etc.)
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ComputeCrc14443(CRC_ICLASS, frame, len-2, &b1, &b2);
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}
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//printf("%1x %1x",(unsigned)b1,(unsigned)b2);
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if (b1 != frame[len-2] || b2 != frame[len-1]) {
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crc = (isResponse & (len < 8)) ? "" : " !crc";
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} else {
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crc = "";
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}
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}
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} else {
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crc = ""; // SHORT
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}
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char metricString[100];
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if (isResponse) {
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sprintf(metricString, "%3d", metric);
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} else {
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strcpy(metricString, " ");
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}
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PrintAndLog(" +%7d: %s: %s %s %s",
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(prev < 0 ? 0 : (timestamp - prev)),
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metricString,
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(isResponse ? "TAG" : " "), line, crc);
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prev = timestamp;
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i += (len + 9);
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}
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return 0;
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}
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/*void iso14a_set_timeout(uint32_t timeout) {
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UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_SET_TIMEOUT, 0, timeout}};
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SendCommand(&c);
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}*/
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int CmdHFiClassSnoop(const char *Cmd)
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{
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UsbCommand c = {CMD_SNOOP_ICLASS};
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SendCommand(&c);
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return 0;
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}
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int CmdHFiClassSim(const char *Cmd)
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{
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uint8_t simType = 0;
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uint8_t CSN[8] = {0, 0, 0, 0, 0, 0, 0, 0};
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if (strlen(Cmd)<1) {
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PrintAndLog("Usage: hf iclass sim [0 <CSN>] | x");
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PrintAndLog(" options");
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PrintAndLog(" 0 <CSN> simulate the given CSN");
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PrintAndLog(" 1 simulate default CSN");
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PrintAndLog(" 2 iterate CSNs, gather MACs");
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PrintAndLog(" sample: hf iclass sim 0 031FEC8AF7FF12E0");
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PrintAndLog(" sample: hf iclass sim 2");
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return 0;
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}
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simType = param_get8(Cmd, 0);
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if(simType == 0)
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{
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if (param_gethex(Cmd, 1, CSN, 16)) {
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PrintAndLog("A CSN should consist of 16 HEX symbols");
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return 1;
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}
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PrintAndLog("--simtype:%02x csn:%s", simType, sprint_hex(CSN, 8));
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}
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if(simType > 2)
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{
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PrintAndLog("Undefined simptype %d", simType);
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return 1;
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}
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uint8_t numberOfCSNs=0;
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UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType,numberOfCSNs}};
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memcpy(c.d.asBytes, CSN, 8);
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if(simType == 2)
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{
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c.arg[1] = 10;//10 CSNs
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uint8_t csns[] ={
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/* Order Simulated CSN HASH1 Recovered key bytes */
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/* 1 */ 0x00,0x0B,0x0F,0xFF,0xF7,0xFF,0x12,0xE0,// 0101000045014545 00,01 45
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/* 2 */ 0x03,0x0B,0x0E,0xFE,0xF7,0xFF,0x12,0xE0,// 0202000045014545 02
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/* 3 */ 0x04,0x0D,0x0D,0xFD,0xF7,0xFF,0x12,0xE0,// 0303000045014545 03
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/* 4 */ 0x04,0x0F,0x0F,0xF7,0xF7,0xFF,0x12,0xE0,// 0901000045014545 09
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/* 5 */ 0x01,0x13,0x10,0xF4,0xF7,0xFF,0x12,0xE0,// 0C00000045014545 0C
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/* 6 */ 0x02,0x14,0x10,0xF2,0xF7,0xFF,0x12,0xE0,// 0E00000045014545 0E
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/* 7 */ 0x05,0x17,0x10,0xEC,0xF7,0xFF,0x12,0xE0,// 1400000045014545 14
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/* 8 */ 0x00,0x6B,0x6F,0xDF,0xF7,0xFF,0x12,0xE0,// 2121000045014545 21
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/* 9 */ 0x03,0x6B,0x6E,0xDE,0xF7,0xFF,0x12,0xE0,// 2222000045014545 22
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/* 10 */ 0x04,0x6D,0x6D,0xDD,0xF7,0xFF,0x12,0xE0,// 2323000045014545 23
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/* 11 */ 0x00,0x4F,0x4B,0x43,0xF7,0xFF,0x12,0xE0,// 3D45000045014545 3D
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/* 12 */ 0x00,0x4B,0x4F,0x3F,0xF7,0xFF,0x12,0xE0,// 4141000045014545 41
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/* 13 */ 0x03,0x4B,0x4E,0x3E,0xF7,0xFF,0x12,0xE0,// 4242000045014545 42
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/* 14 */ 0x04,0x4D,0x4D,0x3D,0xF7,0xFF,0x12,0xE0,// 4343000045014545 43
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/* 15 */ 0x04,0x37,0x37,0x7F,0xF7,0xFF,0x12,0xE0,// 0159000045014545 59
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/* 16 */ 0x00,0x2B,0x2F,0x9F,0xF7,0xFF,0x12,0xE0,// 6161000045014545 61
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/* 17 */ 0x03,0x2B,0x2E,0x9E,0xF7,0xFF,0x12,0xE0,// 6262000045014545 62
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/* 18 */ 0x04,0x2D,0x2D,0x9D,0xF7,0xFF,0x12,0xE0,// 6363000045014545 63
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/* 19 */ 0x00,0x27,0x23,0xBB,0xF7,0xFF,0x12,0xE0,// 456D000045014545 6D
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/* 20 */ 0x02,0x52,0xAA,0x80,0xF7,0xFF,0x12,0xE0,// 0066000045014545 66
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/* 21 */ 0x00,0x5C,0xA6,0x80,0xF7,0xFF,0x12,0xE0,// 006A000045014545 6A
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/* 22 */ 0x01,0x5F,0xA4,0x80,0xF7,0xFF,0x12,0xE0,// 006C000045014545 6C
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/* 23 */ 0x06,0x5E,0xA2,0x80,0xF7,0xFF,0x12,0xE0,// 006E000045014545 6E
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/* 24 */ 0x02,0x0E,0x0E,0xFC,0xF7,0xFF,0x12,0xE0,// 0402000045014545 04
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/* 25 */ 0x05,0x0D,0x0E,0xFA,0xF7,0xFF,0x12,0xE0,// 0602000045014545 06
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/* 26 */ 0x06,0x0F,0x0D,0xF9,0xF7,0xFF,0x12,0xE0,// 0703000045014545 07
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/* 27 */ 0x00,0x01,0x05,0x1D,0xF7,0xFF,0x12,0xE0,// 630B000045014545 0B
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/* 28 */ 0x02,0x07,0x01,0x1D,0xF7,0xFF,0x12,0xE0,// 630F000045014545 0F
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/* 29 */ 0x04,0x7F,0x7F,0xA7,0xF7,0xFF,0x12,0xE0,// 5911000045014545 11
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/* 30 */ 0x04,0x60,0x6E,0xE8,0xF7,0xFF,0x12,0xE0,// 1822000045014545 18
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};
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memcpy(c.d.asBytes, csns, sizeof(c.d.asBytes));
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}
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SendCommand(&c);
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/*UsbCommand * resp = WaitForResponseTimeout(CMD_ACK, 1500);
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if (resp != NULL) {
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uint8_t isOK = resp->arg[0] & 0xff;
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PrintAndLog("isOk:%02x", isOK);
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} else {
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PrintAndLog("Command execute timeout");
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}*/
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return 0;
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}
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int CmdHFiClassReader(const char *Cmd)
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{
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uint8_t readerType = 0;
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if (strlen(Cmd)<1) {
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PrintAndLog("Usage: hf iclass reader <reader type>");
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PrintAndLog(" sample: hf iclass reader 0");
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return 0;
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}
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readerType = param_get8(Cmd, 0);
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PrintAndLog("--readertype:%02x", readerType);
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UsbCommand c = {CMD_READER_ICLASS, {readerType}};
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//memcpy(c.d.asBytes, CSN, 8);
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SendCommand(&c);
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/*UsbCommand * resp = WaitForResponseTimeout(CMD_ACK, 1500);
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if (resp != NULL) {
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uint8_t isOK = resp->arg[0] & 0xff;
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PrintAndLog("isOk:%02x", isOK);
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} else {
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PrintAndLog("Command execute timeout");
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}*/
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return 0;
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}
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static command_t CommandTable[] =
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{
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{"help", CmdHelp, 1, "This help"},
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{"list", CmdHFiClassList, 0, "List iClass history"},
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{"snoop", CmdHFiClassSnoop, 0, "Eavesdrop iClass communication"},
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{"sim", CmdHFiClassSim, 0, "Simulate iClass tag"},
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{"reader", CmdHFiClassReader, 0, "Read an iClass tag"},
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{NULL, NULL, 0, NULL}
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};
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int CmdHFiClass(const char *Cmd)
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{
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CmdsParse(CommandTable, Cmd);
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return 0;
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}
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int CmdHelp(const char *Cmd)
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{
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CmdsHelp(CommandTable);
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return 0;
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}
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