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proxmark3/client/cmdhf.c

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//-----------------------------------------------------------------------------
// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
//
// This code is licensed to you under the terms of the GNU GPL, version 2 or,
// at your option, any later version. See the LICENSE.txt file for the text of
// the license.
//-----------------------------------------------------------------------------
// High frequency commands
//-----------------------------------------------------------------------------
#include <stdio.h>
#include <string.h>
#include "proxmark3.h"
#include "graph.h"
#include "ui.h"
#include "cmdparser.h"
#include "cmdhf.h"
#include "cmdhf14a.h"
#include "cmdhf14b.h"
#include "cmdhf15.h"
#include "cmdhfepa.h"
#include "cmdhflegic.h"
#include "cmdhficlass.h"
#include "cmdhfmf.h"
#include "cmdhfmfu.h"
#include "cmdhfmfdes.h"
#include "cmdhftopaz.h"
#include "protocols.h"
static int CmdHelp(const char *Cmd);
int CmdHFTune(const char *Cmd) {
PrintAndLog("Measuring HF antenna, press button to exit");
UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING_HF};
clearCommandBuffer();
SendCommand(&c);
return 0;
}
int applyIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) {
switch ( cmd[0] ){
case ISO14443A_CMD_WUPA: snprintf(exp,size,"WUPA"); break;
case ISO14443A_CMD_ANTICOLL_OR_SELECT:{
// 93 20 = Anticollision (usage: 9320 - answer: 4bytes UID+1byte UID-bytes-xor)
// 93 70 = Select (usage: 9370+5bytes 9320 answer - answer: 1byte SAK)
if(cmd[1] == 0x70)
snprintf(exp,size,"SELECT_UID");
else
snprintf(exp,size,"ANTICOLL");
break;
}
case ISO14443A_CMD_ANTICOLL_OR_SELECT_2:{
//95 20 = Anticollision of cascade level2
//95 70 = Select of cascade level2
if(cmd[2] == 0x70)
snprintf(exp,size,"SELECT_UID-2");
else
snprintf(exp,size,"ANTICOLL-2");
break;
}
case ISO14443A_CMD_REQA: snprintf(exp,size,"REQA"); break;
case ISO14443A_CMD_READBLOCK: snprintf(exp,size,"READBLOCK(%d)",cmd[1]); break;
case ISO14443A_CMD_WRITEBLOCK: snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]); break;
case ISO14443A_CMD_HALT: snprintf(exp,size,"HALT"); break;
case ISO14443A_CMD_RATS: snprintf(exp,size,"RATS"); break;
case MIFARE_CMD_INC: snprintf(exp,size,"INC(%d)",cmd[1]); break;
case MIFARE_CMD_DEC: snprintf(exp,size,"DEC(%d)",cmd[1]); break;
case MIFARE_CMD_RESTORE: snprintf(exp,size,"RESTORE(%d)",cmd[1]); break;
case MIFARE_CMD_TRANSFER: snprintf(exp,size,"TRANSFER(%d)",cmd[1]); break;
case MIFARE_AUTH_KEYA:{
if ( cmdsize > 3)
snprintf(exp,size,"AUTH-A(%d)",cmd[1]);
else
// case MIFARE_ULEV1_VERSION : both 0x60.
snprintf(exp,size,"EV1 VERSION");
break;
}
case MIFARE_AUTH_KEYB: snprintf(exp,size,"AUTH-B(%d)",cmd[1]); break;
case MIFARE_MAGICWUPC1: snprintf(exp,size,"MAGIC WUPC1"); break;
case MIFARE_MAGICWUPC2: snprintf(exp,size,"MAGIC WUPC2"); break;
case MIFARE_MAGICWIPEC: snprintf(exp,size,"MAGIC WIPEC"); break;
case MIFARE_ULC_AUTH_1 : snprintf(exp,size,"AUTH "); break;
case MIFARE_ULC_AUTH_2 : snprintf(exp,size,"AUTH_ANSW"); break;
case MIFARE_ULEV1_AUTH :
if ( cmdsize == 7 )
snprintf(exp,size,"PWD-AUTH KEY: 0x%02x%02x%02x%02x", cmd[1], cmd[2], cmd[3], cmd[4] );
else
snprintf(exp,size,"PWD-AUTH");
break;
case MIFARE_ULEV1_FASTREAD : {
if ( cmdsize >=3 && cmd[2] <= 0xE6)
snprintf(exp,size,"READ RANGE (%d-%d)",cmd[1],cmd[2]);
else
snprintf(exp,size,"?");
break;
}
case MIFARE_ULC_WRITE : {
if ( cmd[1] < 0x21 )
snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]);
else
snprintf(exp,size,"?");
break;
}
case MIFARE_ULEV1_READ_CNT :{
if ( cmd[1] < 5 )
snprintf(exp,size,"READ CNT(%d)",cmd[1]);
else
snprintf(exp,size,"?");
break;
}
case MIFARE_ULEV1_INCR_CNT : {
if ( cmd[1] < 5 )
snprintf(exp,size,"INCR(%d)",cmd[1]);
else
snprintf(exp,size,"?");
break;
}
case MIFARE_ULEV1_READSIG : snprintf(exp,size,"READ_SIG"); break;
case MIFARE_ULEV1_CHECKTEAR : snprintf(exp,size,"CHK_TEARING(%d)",cmd[1]); break;
case MIFARE_ULEV1_VCSL : snprintf(exp,size,"VCSL"); break;
default: return 0;
}
return 1;
}
void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) {
applyIso14443a(exp, size, cmd, cmdsize);
}
void annotateIclass(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) {
switch (cmd[0]) {
case ICLASS_CMD_ACTALL: snprintf(exp,size,"ACTALL"); break;
case ICLASS_CMD_READ_OR_IDENTIFY:{
if(cmdsize > 1){
snprintf(exp,size,"READ(%d)",cmd[1]);
}else{
snprintf(exp,size,"IDENTIFY");
}
break;
}
case ICLASS_CMD_SELECT: snprintf(exp,size,"SELECT"); break;
case ICLASS_CMD_PAGESEL: snprintf(exp,size,"PAGESEL(%d)", cmd[1]); break;
case ICLASS_CMD_READCHECK_KC:snprintf(exp,size,"READCHECK[Kc](%d)", cmd[1]); break;
case ICLASS_CMD_READCHECK_KD:snprintf(exp,size,"READCHECK[Kd](%d)", cmd[1]); break;
case ICLASS_CMD_CHECK: snprintf(exp,size,"CHECK"); break;
case ICLASS_CMD_DETECT: snprintf(exp,size,"DETECT"); break;
case ICLASS_CMD_HALT: snprintf(exp,size,"HALT"); break;
case ICLASS_CMD_UPDATE: snprintf(exp,size,"UPDATE(%d)",cmd[1]); break;
case ICLASS_CMD_ACT: snprintf(exp,size,"ACT"); break;
case ICLASS_CMD_READ4: snprintf(exp,size,"READ4(%d)",cmd[1]); break;
default: snprintf(exp,size,"?"); break;
}
return;
}
void annotateIso15693(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) {
if(cmd[0] == 0x26) {
switch(cmd[1]){
case ISO15693_INVENTORY :snprintf(exp, size, "INVENTORY");break;
case ISO15693_STAYQUIET :snprintf(exp, size, "STAY_QUIET");break;
default :snprintf(exp,size,"?"); break;
}
} else if(cmd[0] == 0x02) {
switch (cmd[1]) {
case ISO15693_READBLOCK :snprintf(exp, size, "READBLOCK");break;
case ISO15693_WRITEBLOCK :snprintf(exp, size, "WRITEBLOCK");break;
case ISO15693_LOCKBLOCK :snprintf(exp, size, "LOCKBLOCK");break;
case ISO15693_READ_MULTI_BLOCK :snprintf(exp, size, "READ_MULTI_BLOCK");break;
case ISO15693_SELECT :snprintf(exp, size, "SELECT");break;
case ISO15693_RESET_TO_READY :snprintf(exp, size, "RESET_TO_READY");break;
case ISO15693_WRITE_AFI :snprintf(exp, size, "WRITE_AFI");break;
case ISO15693_LOCK_AFI :snprintf(exp, size, "LOCK_AFI");break;
case ISO15693_WRITE_DSFID :snprintf(exp, size, "WRITE_DSFID");break;
case ISO15693_LOCK_DSFID :snprintf(exp, size, "LOCK_DSFID");break;
case ISO15693_GET_SYSTEM_INFO :snprintf(exp, size, "GET_SYSTEM_INFO");break;
case ISO15693_READ_MULTI_SECSTATUS :snprintf(exp, size, "READ_MULTI_SECSTATUS");break;
default: snprintf(exp,size,"?"); break;
}
}
}
void annotateTopaz(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize){
switch(cmd[0]) {
case TOPAZ_REQA :snprintf(exp, size, "REQA");break;
case TOPAZ_WUPA :snprintf(exp, size, "WUPA");break;
case TOPAZ_RID :snprintf(exp, size, "RID");break;
case TOPAZ_RALL :snprintf(exp, size, "RALL");break;
case TOPAZ_READ :snprintf(exp, size, "READ");break;
case TOPAZ_WRITE_E :snprintf(exp, size, "WRITE-E");break;
case TOPAZ_WRITE_NE :snprintf(exp, size, "WRITE-NE");break;
case TOPAZ_RSEG :snprintf(exp, size, "RSEG");break;
case TOPAZ_READ8 :snprintf(exp, size, "READ8");break;
case TOPAZ_WRITE_E8 :snprintf(exp, size, "WRITE-E8");break;
case TOPAZ_WRITE_NE8 :snprintf(exp, size, "WRITE-NE8");break;
default :snprintf(exp,size,"?"); break;
}
}
// iso 7816-3
void annotateIso7816(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize){
// S-block
if ( (cmd[0] & 0xC0) && (cmdsize == 3) ) {
switch ( (cmd[0] & 0x3f) ) {
case 0x00 : snprintf(exp, size, "S-block RESYNCH req"); break;
case 0x20 : snprintf(exp, size, "S-block RESYNCH resp"); break;
case 0x01 : snprintf(exp, size, "S-block IFS req"); break;
case 0x21 : snprintf(exp, size, "S-block IFS resp"); break;
case 0x02 : snprintf(exp, size, "S-block ABORT req"); break;
case 0x22 : snprintf(exp, size, "S-block ABORT resp"); break;
case 0x03 : snprintf(exp, size, "S-block WTX reqt"); break;
case 0x23 : snprintf(exp, size, "S-block WTX resp"); break;
default : snprintf(exp, size, "S-block"); break;
}
}
// R-block (ack)
else if ( ((cmd[0] & 0xD0) == 0x80) && ( cmdsize > 2) ) {
if ( (cmd[0] & 0x10) == 0 )
snprintf(exp, size, "R-block ACK");
else
snprintf(exp, size, "R-block NACK");
}
// I-block
else {
int pos = (cmd[0] == 2 || cmd[0] == 3) ? 2 : 3;
switch ( cmd[pos] ){
case ISO7816_READ_BINARY :snprintf(exp, size, "READ BIN");break;
case ISO7816_WRITE_BINARY :snprintf(exp, size, "WRITE BIN");break;
case ISO7816_UPDATE_BINARY :snprintf(exp, size, "UPDATE BIN");break;
case ISO7816_ERASE_BINARY :snprintf(exp, size, "ERASE BIN");break;
case ISO7816_READ_RECORDS :snprintf(exp, size, "READ RECORDS");break;
case ISO7816_WRITE_RECORDS :snprintf(exp, size, "WRITE RECORDS");break;
case ISO7816_APPEND_RECORD :snprintf(exp, size, "APPEND RECORD");break;
case ISO7816_UPDATE_RECORD :snprintf(exp, size, "UPDATE RECORD");break;
case ISO7816_GET_DATA :snprintf(exp, size, "GET DATA");break;
case ISO7816_PUT_DATA :snprintf(exp, size, "PUT DATA");break;
case ISO7816_SELECT_FILE :snprintf(exp, size, "SELECT FILE");break;
case ISO7816_VERIFY :snprintf(exp, size, "VERIFY");break;
case ISO7816_INTERNAL_AUTHENTICATION :snprintf(exp, size, "INTERNAL AUTH");break;
case ISO7816_EXTERNAL_AUTHENTICATION :snprintf(exp, size, "EXTERNAL AUTH");break;
case ISO7816_GET_CHALLENGE :snprintf(exp, size, "GET CHALLENGE");break;
case ISO7816_MANAGE_CHANNEL :snprintf(exp, size, "MANAGE CHANNEL");break;
default :snprintf(exp,size,"?"); break;
}
}
}
// MIFARE DESFire
void annotateMfDesfire(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize){
// it's basically a ISO14443a tag, so try annotation from there
if (!applyIso14443a(exp, size, cmd, cmdsize)){
//PrintAndLog("rest");
//PrintAndLog("(%d)",cmd[0]);
// S-block 11xxx010
if ( (cmd[0] & 0xC0) && (cmdsize == 3) ) {
switch ( (cmd[0] & 0x30) ) {
case 0x30 : snprintf(exp, size, "S-block DESELECT"); break;
case 0x00 : snprintf(exp, size, "S-block WTX"); break;
default : snprintf(exp, size, "S-block"); break;
}
}
// R-block (ack) 101xx01x
else if ( ((cmd[0] & 0xB0) == 0xA0) && ( cmdsize > 2) ) {
if ( (cmd[0] & 0x10) == 0 )
snprintf(exp, size, "R-block ACK(%d)", (cmd[0] & 0x01));
else
snprintf(exp, size, "R-block NACK(%d)", (cmd[0] & 0x01));
}
// I-block 000xCN1x
else if ( (cmd[0] & 0xC0) == 0x00){
// PCB [CID] [NAD] [INF] CRC CRC
int pos = 1;
if ( (cmd[0] & 0x08) == 0x08) // cid byte following
pos = pos + 1;
if ( (cmd[0] & 0x04) == 0x04) // nad byte following
pos = pos + 1;
//PrintAndLog("[%d]",pos);
switch ( cmd[pos] ){
case MFDES_CREATE_APPLICATION :snprintf(exp, size, "CREATE APPLICATION");break;
case MFDES_DELETE_APPLICATION :snprintf(exp, size, "DELETE APPLICATION");break;
case MFDES_GET_APPLICATION_IDS :snprintf(exp, size, "GET APPLICATION IDS");break;
case MFDES_SELECT_APPLICATION :snprintf(exp, size, "SELECT APPLICATION");break;
case MFDES_FORMAT_PICC :snprintf(exp, size, "FORMAT PICC");break;
case MFDES_GET_VERSION :snprintf(exp, size, "GET VERSION");break;
case MFDES_READ_DATA :snprintf(exp, size, "READ DATA");break;
case MFDES_WRITE_DATA :snprintf(exp, size, "WRITE DATA");break;
case MFDES_GET_VALUE :snprintf(exp, size, "GET VALUE");break;
case MFDES_CREDIT :snprintf(exp, size, "CREDIT");break;
case MFDES_DEBIT :snprintf(exp, size, "DEBIT");break;
case MFDES_LIMITED_CREDIT :snprintf(exp, size, "LIMITED CREDIT");break;
case MFDES_WRITE_RECORD :snprintf(exp, size, "WRITE RECORD");break;
case MFDES_READ_RECORDS :snprintf(exp, size, "READ RECORDS");break;
case MFDES_CLEAR_RECORD_FILE :snprintf(exp, size, "CLEAR RECORD FILE");break;
case MFDES_COMMIT_TRANSACTION :snprintf(exp, size, "COMMIT TRANSACTION");break;
case MFDES_ABORT_TRANSACTION :snprintf(exp, size, "ABORT TRANSACTION");break;
case MFDES_GET_FREE_MEMORY :snprintf(exp, size, "GET FREE MEMORY");break;
case MFDES_GET_FILE_IDS :snprintf(exp, size, "GET FILE IDS");break;
case MFDES_GET_ISOFILE_IDS :snprintf(exp, size, "GET ISOFILE IDS");break;
case MFDES_GET_FILE_SETTINGS :snprintf(exp, size, "GET FILE SETTINGS");break;
case MFDES_CHANGE_FILE_SETTINGS :snprintf(exp, size, "CHANGE FILE SETTINGS");break;
case MFDES_CREATE_STD_DATA_FILE :snprintf(exp, size, "CREATE STD DATA FILE");break;
case MFDES_CREATE_BACKUP_DATA_FILE :snprintf(exp, size, "CREATE BACKUP DATA FILE");break;
case MFDES_CREATE_VALUE_FILE :snprintf(exp, size, "CREATE VALUE FILE");break;
case MFDES_CREATE_LINEAR_RECORD_FILE :snprintf(exp, size, "CREATE LINEAR RECORD FILE");break;
case MFDES_CREATE_CYCLIC_RECORD_FILE :snprintf(exp, size, "CREATE CYCLIC RECORD FILE");break;
case MFDES_DELETE_FILE :snprintf(exp, size, "DELETE FILE");break;
case MFDES_AUTHENTICATE :snprintf(exp, size, "AUTH NATIVE (keyNo %d)", cmd[pos+1]);break; // AUTHENTICATE_NATIVE
case MFDES_AUTHENTICATE_ISO :snprintf(exp, size, "AUTH ISO (keyNo %d)", cmd[pos+1]);break; // AUTHENTICATE_STANDARD
case MFDES_AUTHENTICATE_AES :snprintf(exp, size, "AUTH AES (keyNo %d)", cmd[pos+1]);break;
case MFDES_CHANGE_KEY_SETTINGS :snprintf(exp, size, "CHANGE KEY SETTINGS");break;
case MFDES_GET_KEY_SETTINGS :snprintf(exp, size, "GET KEY SETTINGS");break;
case MFDES_CHANGE_KEY :snprintf(exp, size, "CHANGE KEY");break;
case MFDES_GET_KEY_VERSION :snprintf(exp, size, "GET KEY VERSION");break;
case MFDES_AUTHENTICATION_FRAME :snprintf(exp, size, "AUTH FRAME / NEXT FRAME");break;
default :break;
}
}else{
// anything else
snprintf(exp,size,"?");
}
}
}
/**
06 00 = INITIATE
0E xx = SELECT ID (xx = Chip-ID)
0B = Get UID
08 yy = Read Block (yy = block number)
09 yy dd dd dd dd = Write Block (yy = block number; dd dd dd dd = data to be written)
0C = Reset to Inventory
0F = Completion
0A 11 22 33 44 55 66 = Authenticate (11 22 33 44 55 66 = data to authenticate)
**/
void annotateIso14443b(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) {
switch(cmd[0]){
case ISO14443B_REQB : {
switch ( cmd[2] & 0x07 ) {
case 0: snprintf(exp, size,"1 slot ");break;
case 1: snprintf(exp, size,"2 slots ");break;
case 2: snprintf(exp, size,"4 slots ");break;
case 3: snprintf(exp, size,"8 slots ");break;
default: snprintf(exp, size,"16 slots ");break;
}
if ( (cmd[2] & 0x8) )
snprintf(exp, size,"WUPB");
else
snprintf(exp, size,"REQB");
break;
}
case ISO14443B_ATTRIB : snprintf(exp,size,"ATTRIB");break;
case ISO14443B_HALT : snprintf(exp,size,"HALT");break;
case ISO14443B_INITIATE : snprintf(exp,size,"INITIATE");break;
case ISO14443B_SELECT : snprintf(exp,size,"SELECT(%d)",cmd[1]);break;
case ISO14443B_GET_UID : snprintf(exp,size,"GET UID");break;
case ISO14443B_READ_BLK : snprintf(exp,size,"READ_BLK(%d)", cmd[1]);break;
case ISO14443B_WRITE_BLK : snprintf(exp,size,"WRITE_BLK(%d)",cmd[1]);break;
case ISO14443B_RESET : snprintf(exp,size,"RESET");break;
case ISO14443B_COMPLETION : snprintf(exp,size,"COMPLETION");break;
case ISO14443B_AUTHENTICATE : snprintf(exp,size,"AUTHENTICATE");break;
case ISO14443B_PING : snprintf(exp,size,"PING");break;
case ISO14443B_PONG : snprintf(exp,size,"PONG");break;
default : snprintf(exp,size ,"?");break;
}
}
// LEGIC
// 1 = read
// 0 = write
// Quite simpel tag
void annotateLegic(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize){
uint8_t bitsend = cmd[0];
switch (bitsend){
case 7:
snprintf(exp, size, "IV 0x%02X", cmd[1]);
break;
case 6: {
switch ( cmd[1] ) {
case LEGIC_MIM_22: snprintf(exp, size, "MIM22"); break;
case LEGIC_MIM_256: snprintf(exp, size, "MIM256"); break;
case LEGIC_MIM_1024: snprintf(exp, size, "MIM1024"); break;
case LEGIC_ACK_22: snprintf(exp, size, "ACK 22"); break;
case LEGIC_ACK_256: snprintf(exp, size, "ACK 256/1024"); break;
}
break;
}
case 9:
case 11: {
uint8_t cmdBit = (cmd[1] & 1);
uint8_t address = (cmd[2] << 7) | cmd[1] >> 1;
if (cmdBit == LEGIC_READ)
snprintf(exp, size, "READ Byte(%d)", address);
if (cmdBit == LEGIC_WRITE )
snprintf(exp, size, "WRITE Byte(%d)", address);
break;
}
case 12:
default:
break;
}
}
/**
* @brief iso14443A_CRC_check Checks CRC in command or response
* @param isResponse
* @param data
* @param len
* @return 0 : CRC-command, CRC not ok
* 1 : CRC-command, CRC ok
* 2 : Not crc-command
*/
uint8_t iso14443A_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
{
uint8_t b1,b2;
if(len <= 2) return 2;
if(isResponse & (len < 6)) return 2;
ComputeCrc14443(CRC_14443_A, data, len-2, &b1, &b2);
if (b1 != data[len-2] || b2 != data[len-1]) {
return 0;
} else {
return 1;
}
}
/**
* @brief iso14443B_CRC_check Checks CRC in command or response
* @param isResponse
* @param data
* @param len
* @return 0 : CRC-command, CRC not ok
* 1 : CRC-command, CRC ok
* 2 : Not crc-command
*/
uint8_t iso14443B_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
{
uint8_t b1,b2;
if(len <= 2) return 2;
ComputeCrc14443(CRC_14443_B, data, len-2, &b1, &b2);
if(b1 != data[len-2] || b2 != data[len-1]) {
return 0;
}
return 1;
}
/**
* @brief iclass_CRC_Ok Checks CRC in command or response
* @param isResponse
* @param data
* @param len
* @return 0 : CRC-command, CRC not ok
* 1 : CRC-command, CRC ok
* 2 : Not crc-command
*/
uint8_t iclass_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
{
if(len < 4) return 2;//CRC commands (and responses) are all at least 4 bytes
uint8_t b1, b2;
if(!isResponse)//Commands to tag
{
/**
These commands should have CRC. Total length leftmost
4 READ
4 READ4
12 UPDATE - unsecured, ends with CRC16
14 UPDATE - secured, ends with signature instead
4 PAGESEL
**/
if(len == 4 || len == 12)//Covers three of them
{
//Don't include the command byte
ComputeCrc14443(CRC_ICLASS, (data+1), len-3, &b1, &b2);
return b1 == data[len -2] && b2 == data[len-1];
}
return 2;
}else{
/**
These tag responses should have CRC. Total length leftmost
10 READ data[8] crc[2]
34 READ4 data[32]crc[2]
10 UPDATE data[8] crc[2]
10 SELECT csn[8] crc[2]
10 IDENTIFY asnb[8] crc[2]
10 PAGESEL block1[8] crc[2]
10 DETECT csn[8] crc[2]
These should not
4 CHECK chip_response[4]
8 READCHECK data[8]
1 ACTALL sof[1]
1 ACT sof[1]
In conclusion, without looking at the command; any response
of length 10 or 34 should have CRC
**/
if(len != 10 && len != 34) return true;
ComputeCrc14443(CRC_ICLASS, data, len-2, &b1, &b2);
return b1 == data[len -2] && b2 == data[len-1];
}
}
uint8_t legic_CRC_check(bool isResponse, uint8_t* data, uint8_t len){
if (len > 2) return 2;
uint8_t calccrc = CRC8Legic(data, len);
return 0;
// crc_init(&legic_crc, 4, 0x19 >> 1, 0x5, 0);
// crc_clear(&legic_crc);
// crc_update(&legic_crc, 1, 1); /* CMD_READ */
// crc_update(&legic_crc, byte_index, cmd_sz-1);
// crc_update(&legic_crc, value, 8);
// return crc_finish(&legic_crc);
}
bool is_last_record(uint16_t tracepos, uint8_t *trace, uint16_t traceLen)
{
return(tracepos + sizeof(uint32_t) + sizeof(uint16_t) + sizeof(uint16_t) >= traceLen);
}
bool next_record_is_response(uint16_t tracepos, uint8_t *trace)
{
uint16_t next_records_datalen = *((uint16_t *)(trace + tracepos + sizeof(uint32_t) + sizeof(uint16_t)));
return(next_records_datalen & 0x8000);
}
bool merge_topaz_reader_frames(uint32_t timestamp, uint32_t *duration, uint16_t *tracepos, uint16_t traceLen, uint8_t *trace, uint8_t *frame, uint8_t *topaz_reader_command, uint16_t *data_len)
{
#define MAX_TOPAZ_READER_CMD_LEN 16
uint32_t last_timestamp = timestamp + *duration;
if ((*data_len != 1) || (frame[0] == TOPAZ_WUPA) || (frame[0] == TOPAZ_REQA)) return false;
memcpy(topaz_reader_command, frame, *data_len);
while (!is_last_record(*tracepos, trace, traceLen) && !next_record_is_response(*tracepos, trace)) {
uint32_t next_timestamp = *((uint32_t *)(trace + *tracepos));
*tracepos += sizeof(uint32_t);
uint16_t next_duration = *((uint16_t *)(trace + *tracepos));
*tracepos += sizeof(uint16_t);
uint16_t next_data_len = *((uint16_t *)(trace + *tracepos)) & 0x7FFF;
*tracepos += sizeof(uint16_t);
uint8_t *next_frame = (trace + *tracepos);
*tracepos += next_data_len;
if ((next_data_len == 1) && (*data_len + next_data_len <= MAX_TOPAZ_READER_CMD_LEN)) {
memcpy(topaz_reader_command + *data_len, next_frame, next_data_len);
*data_len += next_data_len;
last_timestamp = next_timestamp + next_duration;
} else {
// rewind and exit
*tracepos = *tracepos - next_data_len - sizeof(uint16_t) - sizeof(uint16_t) - sizeof(uint32_t);
break;
}
uint16_t next_parity_len = (next_data_len-1)/8 + 1;
*tracepos += next_parity_len;
}
*duration = last_timestamp - timestamp;
return true;
}
uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, uint8_t protocol, bool showWaitCycles, bool markCRCBytes)
{
bool isResponse;
uint16_t data_len, parity_len;
uint32_t duration;
uint8_t topaz_reader_command[9];
uint32_t timestamp, first_timestamp, EndOfTransmissionTimestamp;
char explanation[30] = {0};
if (tracepos + sizeof(uint32_t) + sizeof(uint16_t) + sizeof(uint16_t) > traceLen) return traceLen;
first_timestamp = *((uint32_t *)(trace));
timestamp = *((uint32_t *)(trace + tracepos));
tracepos += 4;
duration = *((uint16_t *)(trace + tracepos));
tracepos += 2;
data_len = *((uint16_t *)(trace + tracepos));
tracepos += 2;
if (data_len & 0x8000) {
data_len &= 0x7fff;
isResponse = true;
} else {
isResponse = false;
}
parity_len = (data_len-1)/8 + 1;
if (tracepos + data_len + parity_len > traceLen) {
return traceLen;
}
uint8_t *frame = trace + tracepos;
tracepos += data_len;
uint8_t *parityBytes = trace + tracepos;
tracepos += parity_len;
if (protocol == TOPAZ && !isResponse) {
// topaz reader commands come in 1 or 9 separate frames with 7 or 8 Bits each.
// merge them:
if (merge_topaz_reader_frames(timestamp, &duration, &tracepos, traceLen, trace, frame, topaz_reader_command, &data_len)) {
frame = topaz_reader_command;
}
}
//Check the CRC status
uint8_t crcStatus = 2;
if (data_len > 2) {
switch (protocol) {
case ICLASS:
crcStatus = iclass_CRC_check(isResponse, frame, data_len);
break;
case ISO_14443B:
case TOPAZ:
crcStatus = iso14443B_CRC_check(isResponse, frame, data_len);
break;
case ISO_14443A:
case MFDES:
crcStatus = iso14443A_CRC_check(isResponse, frame, data_len);
break;
default:
break;
}
} else if ( data_len == 2 && protocol == LEGIC ){
crcStatus = legic_CRC_check(isResponse, frame, data_len);
}
//0 CRC-command, CRC not ok
//1 CRC-command, CRC ok
//2 Not crc-command
//--- Draw the data column
char line[16][110];
for (int j = 0; j < data_len && j/16 < 16; j++) {
int oddparity = 0x01;
int k;
for (k=0 ; k<8 ; k++) {
oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01);
}
uint8_t parityBits = parityBytes[j>>3];
if (protocol != ISO_14443B && protocol != ISO_7816_4 && (isResponse || protocol == ISO_14443A) && (oddparity != ((parityBits >> (7-(j&0x0007))) & 0x01))) {
snprintf(line[j/16]+(( j % 16) * 4),110, "%02x! ", frame[j]);
} else {
snprintf(line[j/16]+(( j % 16) * 4),110, "%02x ", frame[j]);
}
}
if (markCRCBytes) {
//CRC-command
if(crcStatus == 0 || crcStatus == 1) {
char *pos1 = line[(data_len-2)/16]+(((data_len-2) % 16) * 4);
(*pos1) = '[';
char *pos2 = line[(data_len)/16]+(((data_len) % 16) * 4);
sprintf(pos2, "%c", ']');
}
}
if (data_len == 0 ) {
sprintf(line[0],"<empty trace - possible error>");
return tracepos;
}
// Draw the CRC column
char *crc = (crcStatus == 0 ? "!crc" : (crcStatus == 1 ? " ok " : " "));
EndOfTransmissionTimestamp = timestamp + duration;
// Always annotate LEGIC read/tag
if ( protocol == LEGIC )
annotateLegic(explanation,sizeof(explanation),frame,data_len);
if (!isResponse) {
switch(protocol) {
case ICLASS: annotateIclass(explanation,sizeof(explanation),frame,data_len); break;
case ISO_14443A: annotateIso14443a(explanation,sizeof(explanation),frame,data_len); break;
case MFDES: annotateMfDesfire(explanation,sizeof(explanation),frame,data_len); break;
case ISO_14443B: annotateIso14443b(explanation,sizeof(explanation),frame,data_len); break;
case TOPAZ: annotateTopaz(explanation,sizeof(explanation),frame,data_len); break;
case ISO_7816_4: annotateIso7816(explanation,sizeof(explanation),frame,data_len); break;
default: break;
}
}
int num_lines = MIN((data_len - 1)/16 + 1, 16);
for (int j = 0; j < num_lines ; j++) {
if (j == 0) {
PrintAndLog(" %10u | %10u | %s |%-64s | %s| %s",
(timestamp - first_timestamp),
(EndOfTransmissionTimestamp - first_timestamp),
(isResponse ? "Tag" : "Rdr"),
line[j],
(j == num_lines-1) ? crc : " ",
(j == num_lines-1) ? explanation : "");
} else {
PrintAndLog(" | | |%-64s | %s| %s",
line[j],
(j == num_lines-1) ? crc : " ",
(j == num_lines-1) ? explanation : "");
}
}
if (is_last_record(tracepos, trace, traceLen)) return traceLen;
if (showWaitCycles && !isResponse && next_record_is_response(tracepos, trace)) {
uint32_t next_timestamp = *((uint32_t *)(trace + tracepos));
PrintAndLog(" %10u | %10u | %s |fdt (Frame Delay Time): %d",
(EndOfTransmissionTimestamp - first_timestamp),
(next_timestamp - first_timestamp),
" ",
(next_timestamp - EndOfTransmissionTimestamp));
}
return tracepos;
}
int usage_hf_list(){
PrintAndLog("List protocol data in trace buffer.");
PrintAndLog("Usage: hf list <protocol> [f][c]");
PrintAndLog(" f - show frame delay times as well");
PrintAndLog(" c - mark CRC bytes");
PrintAndLog("Supported <protocol> values:");
PrintAndLog(" raw - just show raw data without annotations");
PrintAndLog(" 14a - interpret data as iso14443a communications");
PrintAndLog(" 14b - interpret data as iso14443b communications");
PrintAndLog(" des - interpret data as DESFire communications");
PrintAndLog(" iclass - interpret data as iclass communications");
PrintAndLog(" topaz - interpret data as topaz communications");
PrintAndLog(" 7816 - interpret data as iso7816-4 communications");
PrintAndLog(" legic - interpret data as LEGIC communications");
PrintAndLog("");
PrintAndLog("example: hf list 14a f");
PrintAndLog(" hf list iclass");
return 0;
}
int usage_hf_search(){
PrintAndLog("Usage: hf search");
PrintAndLog("Will try to find a HF read out of the unknown tag. Stops when found.");
PrintAndLog("Options:");
PrintAndLog(" h - This help");
PrintAndLog("");
return 0;
}
int usage_hf_snoop(){
PrintAndLog("Usage: hf snoop <skip pairs> <skip triggers>");
PrintAndLog("The high frequence snoop will assign all available memory on device for snooped data");
PrintAndLog("User the 'data samples' command to download from device, and 'data plot' to look at it");
PrintAndLog("Press button to quit the snooping.");
PrintAndLog("Options:");
PrintAndLog(" h - This help");
PrintAndLog(" <skip pairs> - skip sample pairs");
PrintAndLog(" <skip triggers> - skip number of triggers");
PrintAndLog("");
PrintAndLog("example: hf snoop");
PrintAndLog(" hf snoop 1000 0");
return 0;
}
int CmdHFList(const char *Cmd) {
clearCommandBuffer();
bool showWaitCycles = false;
bool markCRCBytes = false;
char type[10] = {0};
//int tlen = param_getstr(Cmd,0,type);
char param1 = param_getchar(Cmd, 1);
char param2 = param_getchar(Cmd, 2);
bool errors = false;
uint8_t protocol = 0;
//Validate params H or empty
if (strlen(Cmd) < 1 || param1 == 'h' || param1 == 'H') return usage_hf_list();
//Validate params F,C
if(
(param1 != 0 && param1 != 'f' && param1 != 'c') ||
(param2 != 0 && param2 != 'f' && param2 != 'c')
) {
return usage_hf_list();
}
param_getstr(Cmd,0,type);
// validate type of output
if(strcmp(type, "iclass") == 0) protocol = ICLASS;
else if(strcmp(type, "14a") == 0) protocol = ISO_14443A;
else if(strcmp(type, "14b") == 0) protocol = ISO_14443B;
else if(strcmp(type, "topaz")== 0) protocol = TOPAZ;
else if(strcmp(type, "7816")== 0) protocol = ISO_7816_4;
else if(strcmp(type,"des")== 0) protocol = MFDES;
else if(strcmp(type,"legic")==0) protocol = LEGIC;
else if(strcmp(type, "raw")== 0) protocol = -1;//No crc, no annotations
else errors = true;
if (errors) return usage_hf_list();
if (param1 == 'f' || param2 == 'f') showWaitCycles = true;
if (param1 == 'c' || param2 == 'c') markCRCBytes = true;
uint8_t *trace;
uint16_t tracepos = 0;
trace = malloc(USB_CMD_DATA_SIZE);
// Query for the size of the trace
UsbCommand response;
GetFromBigBuf(trace, USB_CMD_DATA_SIZE, 0);
WaitForResponse(CMD_ACK, &response);
uint16_t traceLen = response.arg[2];
if (traceLen > USB_CMD_DATA_SIZE) {
uint8_t *p = realloc(trace, traceLen);
if (p == NULL) {
PrintAndLog("Cannot allocate memory for trace");
free(trace);
return 2;
}
trace = p;
GetFromBigBuf(trace, traceLen, 0);
WaitForResponse(CMD_ACK, NULL);
}
PrintAndLog("Recorded Activity (TraceLen = %d bytes)", traceLen);
PrintAndLog("");
PrintAndLog("Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer");
PrintAndLog("iso14443a - All times are in carrier periods (1/13.56Mhz)");
PrintAndLog("iClass - Timings are not as accurate");
PrintAndLog("");
PrintAndLog(" Start | End | Src | Data (! denotes parity error) | CRC | Annotation |");
PrintAndLog("------------|------------|-----|-----------------------------------------------------------------|-----|--------------------|");
while(tracepos < traceLen) {
tracepos = printTraceLine(tracepos, traceLen, trace, protocol, showWaitCycles, markCRCBytes);
}
free(trace);
return 0;
}
int CmdHFSearch(const char *Cmd){
char cmdp = param_getchar(Cmd, 0);
if (cmdp == 'h' || cmdp == 'H') return usage_hf_search();
PrintAndLog("");
int ans = CmdHF14AReader("s");
if (ans > 0) {
PrintAndLog("\nValid ISO14443-A Tag Found - Quiting Search\n");
return ans;
}
ans = CmdHF14BReader("s");
if (ans) {
PrintAndLog("\nValid ISO14443-B Tag Found - Quiting Search\n");
return ans;
}
ans = HFiClassReader("", false, false);
if (ans) {
PrintAndLog("\nValid iClass Tag (or PicoPass Tag) Found - Quiting Search\n");
return ans;
}
ans = HF15Reader("", false);
if (ans) {
PrintAndLog("\nValid ISO15693 Tag Found - Quiting Search\n");
return ans;
}
ans = CmdHFTopazReader("s");
if (ans == 0) {
PrintAndLog("\nValid Topaz Tag Found - Quiting Search\n");
return 1;
}
ans = HFLegicInfo("", false);
if ( ans == 0) {
PrintAndLog("\nValid LEGIC Tag Found - Quiting Search\n");
return 1;
}
PrintAndLog("\nno known/supported 13.56 MHz tags found\n");
return 0;
}
int CmdHFSnoop(const char *Cmd) {
char cmdp = param_getchar(Cmd, 0);
if (cmdp == 'h' || cmdp == 'H') return usage_hf_snoop();
int skippairs = param_get32ex(Cmd, 0, 0, 10);
int skiptriggers = param_get32ex(Cmd, 1, 0, 10);
UsbCommand c = {CMD_HF_SNIFFER, {skippairs, skiptriggers, 0}};
clearCommandBuffer();
SendCommand(&c);
return 0;
}
static command_t CommandTable[] = {
{"help", CmdHelp, 1, "This help"},
{"14a", CmdHF14A, 1, "{ ISO14443A RFIDs... }"},
{"14b", CmdHF14B, 1, "{ ISO14443B RFIDs... }"},
{"15", CmdHF15, 1, "{ ISO15693 RFIDs... }"},
{"epa", CmdHFEPA, 1, "{ German Identification Card... }"},
{"legic", CmdHFLegic, 1, "{ LEGIC RFIDs... }"},
{"iclass", CmdHFiClass, 1, "{ ICLASS RFIDs... }"},
{"mf", CmdHFMF, 1, "{ MIFARE RFIDs... }"},
{"mfu", CmdHFMFUltra, 1, "{ MIFARE Ultralight RFIDs... }"},
{"mfdes", CmdHFMFDes, 1, "{ MIFARE Desfire RFIDs... }"},
{"topaz", CmdHFTopaz, 1, "{ TOPAZ (NFC Type 1) RFIDs... }"},
{"tune", CmdHFTune, 0, "Continuously measure HF antenna tuning"},
{"list", CmdHFList, 1, "List protocol data in trace buffer"},
{"search", CmdHFSearch, 1, "Search for known HF tags [preliminary]"},
{"snoop", CmdHFSnoop, 0, "<samples to skip (10000)> <triggers to skip (1)> Generic LF/HF Snoop in Testing stage"},
{NULL, NULL, 0, NULL}
};
int CmdHF(const char *Cmd) {
clearCommandBuffer();
CmdsParse(CommandTable, Cmd);
return 0;
}
int CmdHelp(const char *Cmd) {
CmdsHelp(CommandTable);
return 0;
}
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