+
+void annotateIso14443a(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"); break;
+ }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"); break;
+ }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: snprintf(exp,size,"AUTH-A(%d)",cmd[1]); break;
+ case MIFARE_AUTH_KEYB: snprintf(exp,size,"AUTH-B(%d)",cmd[1]); break;
+ case MIFARE_MAGICMODE: snprintf(exp,size,"MAGIC"); break;
+ default: snprintf(exp,size,"?"); break;
+ }
+ return;
+}
+
+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;
+ }
+ }
+}
+
+/**
+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 : 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;
+ default : snprintf(exp,size ,"?");break;
+ }
+
+}
+
+/**
+ * @brief iso14443B_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 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];
+ }
+}
+
+uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, uint8_t protocol, bool showWaitCycles)
+{
+ bool isResponse;
+ uint16_t duration, data_len, parity_len;
+
+ 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;
+
+
+ //--- Draw the data column
+ //char line[16][110];
+ 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 (isResponse && (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(data_len == 0)
+ {
+ if(data_len == 0){
+ sprintf(line[0],"<empty trace - possible error>");
+ }
+ }
+ //--- Draw the CRC column
+ uint8_t crcStatus = 2;
+
+ if (data_len > 2) {
+ uint8_t b1, b2;
+ if(protocol == ICLASS)
+ {
+ crcStatus = iclass_CRC_check(isResponse, frame, data_len);
+
+ }else if (protocol == ISO_14443B)
+ {
+ crcStatus = iso14443B_CRC_check(isResponse, frame, data_len);
+ }
+ else if (protocol == ISO_14443A){//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;
+ }
+ }
+ }
+ }
+ //0 CRC-command, CRC not ok
+ //1 CRC-command, CRC ok
+ //2 Not crc-command
+ char *crc = (crcStatus == 0 ? "!crc" : (crcStatus == 1 ? " ok " : " "));
+
+ EndOfTransmissionTimestamp = timestamp + duration;
+
+ if(!isResponse)
+ {
+ if(protocol == ICLASS)
+ annotateIclass(explanation,sizeof(explanation),frame,data_len);
+ else if (protocol == ISO_14443A)
+ annotateIso14443a(explanation,sizeof(explanation),frame,data_len);
+ else if(protocol == ISO_14443B)
+ annotateIso14443b(explanation,sizeof(explanation),frame,data_len);
+ }
+
+ 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",
+ (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 (tracepos + sizeof(uint32_t) + sizeof(uint16_t) + sizeof(uint16_t) > traceLen) return traceLen;
+
+ bool next_isResponse = *((uint16_t *)(trace + tracepos + 6)) & 0x8000;
+
+ if (showWaitCycles && !isResponse && next_isResponse) {
+ uint32_t next_timestamp = *((uint32_t *)(trace + tracepos));
+ if (next_timestamp != 0x44444444) {
+ PrintAndLog(" %9d | %9d | %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;
+ char type[40] = {0};
+ int tlen = param_getstr(Cmd,0,type);
+ char param = param_getchar(Cmd, 1);
+ bool errors = false;
+ uint8_t protocol = 0;
+ //Validate params
+ if(tlen == 0)
+ {
+ errors = true;
+ }
+ if(param == 'h' || (param !=0 && param != 'f'))
+ {
+ errors = true;
+ }
+ if(!errors)
+ {
+ 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,"raw")== 0)
+ {
+ protocol = -1;//No crc, no annotations
+ }else{
+ errors = true;
+ }
+ }
+
+ if (errors) {
+ PrintAndLog("List protocol data in trace buffer.");
+ PrintAndLog("Usage: hf list <protocol> [f]");
+ PrintAndLog(" f - show frame delay times as well");
+ 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(" iclass - interpret data as iclass communications");
+ PrintAndLog("");
+ PrintAndLog("example: hf list 14a f");
+ PrintAndLog("example: hf list iclass");
+ return 0;
+ }
+
+
+ if (param == 'f') {
+ showWaitCycles = 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);
+ }
+
+ free(trace);
+ return 0;
+}
+
+
projects / proxmark3-svn / blobdiff