+
+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, uint32_t *prev_EOT, bool times_in_us) {
+ bool isResponse;
+ uint16_t data_len, parity_len;
+ uint32_t duration;
+ uint8_t topaz_reader_command[9];
+ uint32_t timestamp, first_timestamp;
+ uint32_t EndOfTransmissionTimestamp = 0;
+ 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;
+ }
+ }
+
+ // adjust for different time scales
+ if (protocol == ICLASS || protocol == ISO_15693) {
+ duration *= 32;
+ }
+
+ //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;
+ case ISO_14443_4:
+ crcStatus = iso14443_4_CRC_check(frame, data_len);
+ break;
+ case ISO_15693:
+ crcStatus = iso15693_CRC_check(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];
+
+ for (int j = 0; j < data_len && j/16 < 16; j++) {
+ uint8_t parityBits = parityBytes[j>>3];
+ if (protocol != ISO_14443B
+ && protocol != ISO_15693
+ && protocol != ICLASS
+ && protocol != ISO_7816_4
+ && (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", ']');
+ }
+ }
+
+ // mark short bytes (less than 8 Bit + Parity)
+ if (protocol == ISO_14443A || protocol == PROTO_MIFARE) {
+ if (duration < 128 * (9 * data_len)) {
+ line[(data_len-1)/16][((data_len-1)%16) * 4 + 3] = '\'';
+ }
+ }
+
+ if (data_len == 0) {
+ if (protocol == ICLASS && duration == 2048) {
+ sprintf(line[0], " <SOF>");
+ } else if (protocol == ISO_15693 && duration == 512) {
+ sprintf(line[0], " <EOF>");
+ } else {
+ sprintf(line[0], " <empty trace - possible error>");
+ }
+ }
+
+ //--- Draw the CRC column
+ char *crc = (crcStatus == 0 ? "!crc" : (crcStatus == 1 ? " ok " : " "));
+
+ 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;
+ case ISO_15693: annotateIso15693(explanation,sizeof(explanation),frame,data_len); break;
+ case ISO_7816_4: annotateIso7816(explanation, sizeof(explanation), frame, data_len); break;
+ case ISO_14443_4: annotateIso14443_4(explanation, sizeof(explanation), frame, data_len); break;
+ default: break;
+ }
+ }
+
+ uint32_t previousEndOfTransmissionTimestamp = 0;
+ if (prev_EOT) {
+ if (*prev_EOT) {
+ previousEndOfTransmissionTimestamp = *prev_EOT;
+ } else {
+ previousEndOfTransmissionTimestamp = timestamp;
+ }
+ }
+ EndOfTransmissionTimestamp = timestamp + duration;
+ if (prev_EOT) *prev_EOT = EndOfTransmissionTimestamp;
+
+ int num_lines = MIN((data_len - 1)/16 + 1, 16);
+ for (int j = 0; j < num_lines ; j++) {
+ if (j == 0) {
+ uint32_t time1 = timestamp - first_timestamp;
+ uint32_t time2 = EndOfTransmissionTimestamp - first_timestamp;
+ if (prev_EOT) {
+ time1 = timestamp - previousEndOfTransmissionTimestamp;
+ time2 = duration;
+ }
+ if (times_in_us) {
+ PrintAndLog(" %10.1f | %10.1f | %s |%-64s | %s| %s",
+ (float)time1/13.56,
+ (float)time2/13.56,
+ isResponse ? "Tag" : "Rdr",
+ line[j],
+ (j == num_lines-1) ? crc : " ",
+ (j == num_lines-1) ? explanation : "");
+ } else {
+ PrintAndLog(" %10" PRIu32 " | %10" PRIu32 " | %s |%-64s | %s| %s",
+ time1,
+ time2,
+ 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) {
+
+ CLIParserInit("hf list", "\nList or save protocol data.",
+ "examples: hf list 14a -f -- interpret as ISO14443A communication and display Frame Delay Times\n"\
+ " hf list iclass -- interpret as iClass trace\n"\
+ " hf list -s myCardTrace.trc -- save trace for later use\n"\
+ " hf list 14a -l myCardTrace.trc -- load trace and interpret as ISO14443A communication\n");
+ void* argtable[] = {
+ arg_param_begin,
+ arg_lit0("f", "fdt", "display fdt (frame delay times)"),
+ arg_lit0("r", "relative", "show relative times (gap and duration)"),
+ arg_lit0("c", "crc" , "mark CRC bytes"),
+ arg_lit0("p", "pcsc", "show trace buffer from PCSC card reader instead of PM3"),
+ arg_str0("l", "load", "<filename>", "load trace from file"),
+ arg_str0("s", "save", "<filename>", "save trace to file"),
+ arg_lit0("u", "us", "display times in microseconds instead of clock cycles"),
+ arg_str0(NULL, NULL, "<protocol>", "protocol to interpret. Possible values:\n"\
+ "\traw - just show raw data without annotations (default)\n"\
+ "\t14a - interpret data as ISO14443A communications\n"\
+ "\tmf - interpret data as ISO14443A communications and decrypt Mifare Crypto1 stream\n"\
+ "\t14b - interpret data as ISO14443B communications\n"\
+ "\t15 - interpret data as ISO15693 communications\n"\
+ "\ticlass - interpret data as iClass communications\n"\
+ "\ttopaz - interpret data as Topaz communications\n"\
+ "\t7816 - interpret data as 7816-4 APDU communications\n"\
+ "\t14-4 - interpret data as ISO14443-4 communications"),
+ arg_param_end
+ };
+
+ if (CLIParserParseString(Cmd, argtable, arg_getsize(argtable), true)){
+ CLIParserFree();
+ return 0;
+ }
+
+ bool showWaitCycles = arg_get_lit(1);
+ bool relative_times = arg_get_lit(2);
+ bool markCRCBytes = arg_get_lit(3);
+ bool PCSCtrace = arg_get_lit(4);
+ bool loadFromFile = arg_get_str_len(5);
+ bool saveToFile = arg_get_str_len(6);
+ bool times_in_us = arg_get_lit(7);
+
+ uint32_t previous_EOT = 0;
+ uint32_t *prev_EOT = NULL;
+ if (relative_times) {
+ prev_EOT = &previous_EOT;
+ }
+
+ char load_filename[FILE_PATH_SIZE+1] = {0};
+ if (loadFromFile) {
+ strncpy(load_filename, arg_get_str(5)->sval[0], FILE_PATH_SIZE);
+ }
+ char save_filename[FILE_PATH_SIZE+1] = {0};
+ if (saveToFile) {
+ strncpy(save_filename, arg_get_str(6)->sval[0], FILE_PATH_SIZE);
+ }
+
+ uint8_t protocol = -1;
+ if (arg_get_str_len(8)) {
+ if (strcmp(arg_get_str(8)->sval[0], "iclass") == 0) protocol = ICLASS;
+ else if(strcmp(arg_get_str(8)->sval[0], "14a") == 0) protocol = ISO_14443A;
+ else if(strcmp(arg_get_str(8)->sval[0], "mf") == 0) protocol = PROTO_MIFARE;
+ else if(strcmp(arg_get_str(8)->sval[0], "14b") == 0) protocol = ISO_14443B;
+ else if(strcmp(arg_get_str(8)->sval[0], "topaz") == 0) protocol = TOPAZ;
+ else if(strcmp(arg_get_str(8)->sval[0], "7816") == 0) protocol = ISO_7816_4;
+ else if(strcmp(arg_get_str(8)->sval[0], "14-4") == 0) protocol = ISO_14443_4;
+ else if(strcmp(arg_get_str(8)->sval[0], "15") == 0) protocol = ISO_15693;
+ else if(strcmp(arg_get_str(8)->sval[0], "raw") == 0) protocol = -1;//No crc, no annotations
+ else {
+ PrintAndLog("hf list: invalid argument \"%s\"\nTry 'hf list --help' for more information.", arg_get_str(8)->sval[0]);
+ CLIParserFree();
+ return 0;
+ }
+ }
+
+ CLIParserFree();
+
+
+ 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(load_filename,"rb")) == NULL) {
+ PrintAndLog("Could not open file %s", load_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 if (PCSCtrace) {
+ trace = pcsc_get_trace_addr();
+ traceLen = pcsc_get_traceLen();
+ } else {
+ trace = malloc(USB_CMD_DATA_SIZE);
+ // Query for the size of the trace
+ UsbCommand response;
+ if (!(GetFromBigBuf(trace, USB_CMD_DATA_SIZE, 0, &response, 500, false))) {
+ return 1;
+ }
+ 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;
+ if (!(GetFromBigBuf(trace, traceLen, 0, NULL, 500, false))) {
+ return 1;
+ }
+ }
+ }
+
+ if (saveToFile) {
+ FILE *tracefile = NULL;
+ if ((tracefile = fopen(save_filename,"wb")) == NULL) {
+ PrintAndLog("Could not create file %s", save_filename);
+ return 1;
+ }
+ fwrite(trace, 1, traceLen, tracefile);
+ PrintAndLog("Recorded Activity (TraceLen = %d bytes) written to file %s", traceLen, save_filename);
+ fclose(tracefile);
+ } else {
+ PrintAndLog("Recorded Activity (TraceLen = %d bytes)", traceLen);
+ PrintAndLog("");
+ if (relative_times) {
+ PrintAndLog("Gap = time between transfers. Duration = duration of data transfer. Src = Source of transfer");
+ } else {
+ PrintAndLog("Start = Start of Frame, End = End of Frame. Src = Source of transfer");
+ }
+ if (times_in_us) {
+ PrintAndLog("All times are in microseconds");
+ } else {
+ PrintAndLog("All times are in carrier periods (1/13.56Mhz)");
+ }
+ PrintAndLog("");
+ if (relative_times) {
+ PrintAndLog(" Gap | Duration | Src | Data (! denotes parity error, ' denotes short bytes) | CRC | Annotation |");
+ } else {
+ PrintAndLog(" Start | End | Src | Data (! denotes parity error, ' denotes short bytes) | CRC | Annotation |");
+ }
+ PrintAndLog("------------|------------|-----|-----------------------------------------------------------------|-----|--------------------|");
+
+ ClearAuthData();
+ while(tracepos < traceLen) {
+ tracepos = printTraceLine(tracepos, traceLen, trace, protocol, showWaitCycles, markCRCBytes, prev_EOT, times_in_us);
+ }
+ }
+
+ free(trace);
+ return 0;
+}
+
projects / proxmark3-svn / blobdiff