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revert change "hf list topaz" to "hf list nfc"

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refactored Startbit detection in MillerDecoding()
relaxed startbit detection in MillerDecoding()
fixed CRC checking and CRC bytes marking in hf list
fixed topaz multi frame command listing in hf list topaz
This commit is contained in:
pwpiwi 2015-03-17 07:41:08 +01:00
commit ef00343cb1
3 changed files with 84 additions and 63 deletions
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89
client/cmdhf.c
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@ -189,7 +189,34 @@ void annotateIso14443b(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
}
/**
* @brief iso14443B_CRC_Ok Checks CRC in command or response
* @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
@ -206,9 +233,10 @@ uint8_t iso14443B_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
ComputeCrc14443(CRC_14443_B, data, len-2, &b1, &b2);
if(b1 != data[len-2] || b2 != data[len-1]) {
return 0;
return 0;
} else {
return 1;
}
return 1;
}
/**
@ -287,33 +315,42 @@ bool next_record_is_response(uint16_t tracepos, uint8_t *trace)
}
void 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)
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 9
uint32_t last_timestamp = timestamp + *duration;
memcpy(topaz_reader_command, frame, MIN(*data_len, MAX_TOPAZ_READER_CMD_LEN));
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);
last_timestamp = next_timestamp + *((uint16_t *)(trace + *tracepos));
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 (*data_len + next_data_len <= MAX_TOPAZ_READER_CMD_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;
}
@ -354,32 +391,27 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
tracepos += parity_len;
if (protocol == TOPAZ && !isResponse) {
// topaz reader commands come in 1 or 9 separate frames with 8 Bits each.
// topaz reader commands come in 1 or 9 separate frames with 7 or 8 Bits each.
// merge them:
merge_topaz_reader_frames(timestamp, &duration, &tracepos, traceLen, trace, frame, topaz_reader_command, &data_len);
frame = topaz_reader_command;
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) {
uint8_t b1, b2;
switch (protocol) {
case ICLASS:
crcStatus = iclass_CRC_check(isResponse, frame, data_len);
break;
case ISO_14443B:
case TOPAZ:
case TOPAZ:
crcStatus = iso14443B_CRC_check(isResponse, frame, data_len);
break;
case ISO_14443A:
ComputeCrc14443(CRC_14443_A, frame, data_len-2, &b1, &b2);
if (b1 != frame[data_len-2] || b2 != frame[data_len-1]) {
if(!(isResponse & (data_len < 6))) {
crcStatus = 0;
}
}
crcStatus = iso14443A_CRC_check(isResponse, frame, data_len);
break;
default:
break;
@ -403,19 +435,18 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
}
uint8_t parityBits = parityBytes[j>>3];
if (isResponse && (oddparity != ((parityBits >> (7-(j&0x0007))) & 0x01))) {
snprintf(line[j/16]+(( j % 16) * 4),110, "%02x! ", frame[j]);
snprintf(line[j/16]+(( j % 16) * 4), 110, " %02x!", frame[j]);
} else {
snprintf(line[j/16]+(( j % 16) * 4),110, "%02x ", frame[j]);
snprintf(line[j/16]+(( j % 16) * 4), 110, " %02x ", frame[j]);
}
}
if(crcStatus == 1 || crcStatus == 2)
if(crcStatus == 0 || crcStatus == 1)
{//CRC-command
char *pos1 = line[(data_len-2)/16]+(((data_len-2) % 16) * 4)-1;
char *pos1 = line[(data_len-2)/16]+(((data_len-2) % 16) * 4);
(*pos1) = '[';
char *pos2 = line[(data_len)/16]+(((data_len) % 16) * 4)-2;
(*pos2) = ']';
char *pos2 = line[(data_len)/16]+(((data_len) % 16) * 4);
sprintf(pos2, "%c", ']');
}
if(data_len == 0)
{
@ -443,7 +474,7 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
int num_lines = MIN((data_len - 1)/16 + 1, 16);
for (int j = 0; j < num_lines ; j++) {
if (j == 0) {
PrintAndLog(" %9d | %9d | %s | %-64s| %s| %s",
PrintAndLog(" %9d | %9d | %s |%-64s | %s| %s",
(timestamp - first_timestamp),
(EndOfTransmissionTimestamp - first_timestamp),
(isResponse ? "Tag" : "Rdr"),
@ -451,7 +482,7 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
(j == num_lines-1) ? crc : " ",
(j == num_lines-1) ? explanation : "");
} else {
PrintAndLog(" | | | %-64s| %s| %s",
PrintAndLog(" | | |%-64s | %s| %s",
line[j],
(j == num_lines-1) ? crc : " ",
(j == num_lines-1) ? explanation : "");
@ -498,7 +529,7 @@ int CmdHFList(const char *Cmd)
protocol = ISO_14443A;
} else if(strcmp(type, "14b") == 0) {
protocol = ISO_14443B;
} else if(strcmp(type,"nfc")== 0) {
} else if(strcmp(type,"topaz")== 0) {
protocol = TOPAZ;
} else if(strcmp(type,"raw")== 0) {
protocol = -1;//No crc, no annotations