-/**
- * @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;
- } else {
- 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];
- }
-}
-
-
-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};
- uint8_t mfData[32] = {0};
- size_t mfDataLen = 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 PROTO_MIFARE:
- crcStatus = mifare_CRC_check(isResponse, frame, data_len);
- break;
- case ISO_14443A:
- crcStatus = iso14443A_CRC_check(isResponse, frame, data_len);
- break;
- default:
- break;
- }
- }
- //0 CRC-command, CRC not ok
- //1 CRC-command, CRC ok
- //2 Not crc-command
-
- //--- Draw the data column
- //char line[16][110];
- char line[16][110];
-
- for (int j = 0; j < data_len && j/16 < 16; j++) {
-
- uint8_t parityBits = parityBytes[j>>3];
- if (protocol != ISO_14443B && (isResponse || protocol == ISO_14443A) && (oddparity8(frame[j]) != ((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) {
- if(crcStatus == 0 || crcStatus == 1)
- {//CRC-command
- 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)
- {
- if(data_len == 0){
- sprintf(line[0],"<empty trace - possible error>");
- }
- }
- //--- Draw the CRC column
-
- char *crc = (crcStatus == 0 ? "!crc" : (crcStatus == 1 ? " ok " : " "));
-
- EndOfTransmissionTimestamp = timestamp + duration;
-
- if (protocol == PROTO_MIFARE)
- annotateMifare(explanation, sizeof(explanation), frame, data_len, parityBytes, parity_len, isResponse);
-
- 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 ISO_14443B: annotateIso14443b(explanation,sizeof(explanation),frame,data_len); break;
- case TOPAZ: annotateTopaz(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(" %10d | %10d | %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 (DecodeMifareData(frame, data_len, parityBytes, isResponse, mfData, &mfDataLen)) {
- memset(explanation, 0x00, sizeof(explanation));
- if (!isResponse) {
- explanation[0] = '>';
- annotateIso14443a(&explanation[1], sizeof(explanation) - 1, mfData, mfDataLen);
- }
- uint8_t crcc = iso14443A_CRC_check(isResponse, mfData, mfDataLen);
- PrintAndLog(" | * | dec |%-64s | %-4s| %s",
- sprint_hex(mfData, mfDataLen),
- (crcc == 0 ? "!crc" : (crcc == 1 ? " ok " : " ")),
- (true) ? 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(" %10d | %10d | %s | fdt (Frame Delay Time): %d",
- (EndOfTransmissionTimestamp - first_timestamp),
- (next_timestamp - first_timestamp),
- " ",
- (next_timestamp - EndOfTransmissionTimestamp));
- }
-
- return tracepos;
-}
-
-
-int CmdHFList(const char *Cmd)
-{
- bool showWaitCycles = false;
- bool markCRCBytes = false;
- bool loadFromFile = false;
- bool saveToFile = false;
- char param1 = '\0';
- char param2 = '\0';
- char param3 = '\0';
- char type[40] = {0};
- char filename[FILE_PATH_SIZE] = {0};
- uint8_t protocol = 0;
-
- // parse command line
- int tlen = param_getstr(Cmd, 0, type, sizeof(type));
- if (param_getlength(Cmd, 1) == 1) {
- param1 = param_getchar(Cmd, 1);
- } else {
- param_getstr(Cmd, 1, filename, sizeof(filename));
- }
- if (param_getlength(Cmd, 2) == 1) {
- param2 = param_getchar(Cmd, 2);
- } else if (strlen(filename) == 0) {
- param_getstr(Cmd, 2, filename, sizeof(filename));
- }
- if (param_getlength(Cmd, 3) == 1) {
- param3 = param_getchar(Cmd, 3);
- } else if (strlen(filename) == 0) {
- param_getstr(Cmd, 3, filename, sizeof(filename));
- }
-
- // Validate param1
- bool errors = false;
-
- if(tlen == 0) {
- errors = true;
- }
-
- if(param1 == 'h'
- || (param1 != 0 && param1 != 'f' && param1 != 'c' && param1 != 'l')
- || (param2 != 0 && param2 != 'f' && param2 != 'c' && param2 != 'l')
- || (param3 != 0 && param3 != 'f' && param3 != 'c' && param3 != 'l')) {
- errors = true;
- }
-
- if(!errors) {
- if(strcmp(type, "iclass") == 0) {
- protocol = ICLASS;
- } else if(strcmp(type, "mf") == 0) {
- protocol = PROTO_MIFARE;
- } 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,"raw") == 0) {
- protocol = -1; //No crc, no annotations
- } else if (strcmp(type, "save") == 0) {
- saveToFile = true;
- } else {
- errors = true;
- }
- }
-
- if (param1 == 'f' || param2 == 'f' || param3 == 'f') {
- showWaitCycles = true;
- }
-
- if (param1 == 'c' || param2 == 'c' || param3 == 'c') {
- markCRCBytes = true;
- }
-
- if (param1 == 'l' || param2 == 'l' || param3 == 'l') {
- loadFromFile = true;
- }
-
- if ((loadFromFile || saveToFile) && strlen(filename) == 0) {
- errors = true;
- }
-
- if (loadFromFile && saveToFile) {
- errors = true;
- }
-
- if (errors) {
- PrintAndLog("List or save protocol data.");
- PrintAndLog("Usage: hf list <protocol> [f] [c] [l <filename>]");
- PrintAndLog(" hf list save <filename>");
- PrintAndLog(" f - show frame delay times as well");
- PrintAndLog(" c - mark CRC bytes");
- PrintAndLog(" l - load data from file instead of trace buffer");
- PrintAndLog(" save - save data to file");
- PrintAndLog("Supported <protocol> values:");
- PrintAndLog(" raw - just show raw data without annotations");
- PrintAndLog(" 14a - interpret data as iso14443a communications");
- PrintAndLog(" mf - interpret data as iso14443a communications and decrypt crypto1 stream");
- PrintAndLog(" 14b - interpret data as iso14443b communications");
- PrintAndLog(" iclass - interpret data as iclass communications");
- PrintAndLog(" topaz - interpret data as topaz communications");
- PrintAndLog("");
- PrintAndLog("example: hf list 14a f");
- PrintAndLog("example: hf list iclass");
- PrintAndLog("example: hf list save myCardTrace.trc");
- PrintAndLog("example: hf list 14a l myCardTrace.trc");
- return 0;
- }
-
-
- uint8_t *trace;
- uint32_t tracepos = 0;
- uint32_t traceLen = 0;
-
- if (loadFromFile) {
- #define TRACE_CHUNK_SIZE (1<<16) // 64K to start with. Will be enough for BigBuf and some room for future extensions
- FILE *tracefile = NULL;
- size_t bytes_read;
- trace = malloc(TRACE_CHUNK_SIZE);
- if (trace == NULL) {
- PrintAndLog("Cannot allocate memory for trace");
- return 2;
- }
- if ((tracefile = fopen(filename,"rb")) == NULL) {
- PrintAndLog("Could not open file %s", filename);
- free(trace);
- return 0;
- }
- while (!feof(tracefile)) {
- bytes_read = fread(trace+traceLen, 1, TRACE_CHUNK_SIZE, tracefile);
- traceLen += bytes_read;
- if (!feof(tracefile)) {
- uint8_t *p = realloc(trace, traceLen + TRACE_CHUNK_SIZE);
- if (p == NULL) {
- PrintAndLog("Cannot allocate memory for trace");
- free(trace);
- fclose(tracefile);
- return 2;
- }
- trace = p;
- }
- }
- fclose(tracefile);
- } else {
- trace = malloc(USB_CMD_DATA_SIZE);
- // Query for the size of the trace
- UsbCommand response;
- GetFromBigBuf(trace, USB_CMD_DATA_SIZE, 0, &response, -1, false);
- 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, NULL, -1, false);
- }
- }
-
- if (saveToFile) {
- FILE *tracefile = NULL;
- if ((tracefile = fopen(filename,"wb")) == NULL) {
- PrintAndLog("Could not create file %s", filename);
- return 1;
- }
- fwrite(trace, 1, traceLen, tracefile);
- PrintAndLog("Recorded Activity (TraceLen = %d bytes) written to file %s", traceLen, filename);
- fclose(tracefile);
- } else {
- 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("------------|------------|-----|-----------------------------------------------------------------|-----|--------------------|");
-
- ClearAuthData();
- while(tracepos < traceLen)
- {
- tracepos = printTraceLine(tracepos, traceLen, trace, protocol, showWaitCycles, markCRCBytes);
- }
- }
-
- free(trace);
- return 0;
-}
-
projects / proxmark3-svn / blobdiff