]> git.zerfleddert.de Git - proxmark3-svn/blobdiff - client/cmdhflist.c
Merge branch 'master' into fix_iso15693_fpga
[proxmark3-svn] / client / cmdhflist.c
index 07a286cc3e89d7d5ac8ea476ce387bc0ab8c51a0..4bca17a778c80bb59775fed3dff58ea203802bc6 100644 (file)
@@ -18,6 +18,7 @@
 #include <stdbool.h>
 #include "util.h"
 #include "ui.h"
+#include "cliparser/cliparser.h"
 #include "comms.h"
 #include "iso14443crc.h"
 #include "iso15693tools.h"
@@ -242,32 +243,34 @@ void annotateIclass(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) {
 }
 
 
-void annotateIso15693(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
-{
-       switch(cmd[1]){
-               // Mandatory Commands, all Tags must support them:
-               case ISO15693_INVENTORY             :snprintf(exp, size, "INVENTORY");return;
-               case ISO15693_STAYQUIET             :snprintf(exp, size, "STAY_QUIET");return;
-               // Optional Commands, Tags may support them:
-               case ISO15693_READBLOCK             :snprintf(exp, size, "READBLOCK");return;
-               case ISO15693_WRITEBLOCK            :snprintf(exp, size, "WRITEBLOCK");return;
-               case ISO15693_LOCKBLOCK             :snprintf(exp, size, "LOCKBLOCK");return;
-               case ISO15693_READ_MULTI_BLOCK      :snprintf(exp, size, "READ_MULTI_BLOCK");return;
-               case ISO15693_SELECT                :snprintf(exp, size, "SELECT");return;
-               case ISO15693_RESET_TO_READY        :snprintf(exp, size, "RESET_TO_READY");return;
-               case ISO15693_WRITE_AFI             :snprintf(exp, size, "WRITE_AFI");return;
-               case ISO15693_LOCK_AFI              :snprintf(exp, size, "LOCK_AFI");return;
-               case ISO15693_WRITE_DSFID           :snprintf(exp, size, "WRITE_DSFID");return;
-               case ISO15693_LOCK_DSFID            :snprintf(exp, size, "LOCK_DSFID");return;
-               case ISO15693_GET_SYSTEM_INFO       :snprintf(exp, size, "GET_SYSTEM_INFO");return;
-               case ISO15693_READ_MULTI_SECSTATUS  :snprintf(exp, size, "READ_MULTI_SECSTATUS");return;
-               default: break;
-       }
+void annotateIso15693(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) {
+       if (cmdsize >= 2) {
+               switch (cmd[1]) {
+                       // Mandatory Commands, all Tags must support them:
+                       case ISO15693_INVENTORY             :snprintf(exp, size, "INVENTORY");return;
+                       case ISO15693_STAYQUIET             :snprintf(exp, size, "STAY_QUIET");return;
+                       // Optional Commands, Tags may support them:
+                       case ISO15693_READBLOCK             :snprintf(exp, size, "READBLOCK");return;
+                       case ISO15693_WRITEBLOCK            :snprintf(exp, size, "WRITEBLOCK");return;
+                       case ISO15693_LOCKBLOCK             :snprintf(exp, size, "LOCKBLOCK");return;
+                       case ISO15693_READ_MULTI_BLOCK      :snprintf(exp, size, "READ_MULTI_BLOCK");return;
+                       case ISO15693_WRITE_MULTI_BLOCK     :snprintf(exp, size, "WRITE_MULTI_BLOCK");return;
+                       case ISO15693_SELECT                :snprintf(exp, size, "SELECT");return;
+                       case ISO15693_RESET_TO_READY        :snprintf(exp, size, "RESET_TO_READY");return;
+                       case ISO15693_WRITE_AFI             :snprintf(exp, size, "WRITE_AFI");return;
+                       case ISO15693_LOCK_AFI              :snprintf(exp, size, "LOCK_AFI");return;
+                       case ISO15693_WRITE_DSFID           :snprintf(exp, size, "WRITE_DSFID");return;
+                       case ISO15693_LOCK_DSFID            :snprintf(exp, size, "LOCK_DSFID");return;
+                       case ISO15693_GET_SYSTEM_INFO       :snprintf(exp, size, "GET_SYSTEM_INFO");return;
+                       case ISO15693_READ_MULTI_SECSTATUS  :snprintf(exp, size, "READ_MULTI_SECSTATUS");return;
+                       default: break;
+               }
 
-       if (cmd[1] > ISO15693_STAYQUIET && cmd[1] < ISO15693_READBLOCK) snprintf(exp, size, "Mandatory RFU");
-       else if (cmd[1] > ISO15693_READ_MULTI_SECSTATUS && cmd[1] <= 0x9F) snprintf(exp, size, "Optional RFU");
-       else if ( cmd[1] >= 0xA0 && cmd[1] <= 0xDF ) snprintf(exp, size, "Custom command");
-       else if ( cmd[1] >= 0xE0 && cmd[1] <= 0xFF ) snprintf(exp, size, "Proprietary command");
+               if (cmd[1] > ISO15693_STAYQUIET && cmd[1] < ISO15693_READBLOCK) snprintf(exp, size, "Mandatory RFU");
+               else if (cmd[1] > ISO15693_READ_MULTI_SECSTATUS && cmd[1] <= 0x9F) snprintf(exp, size, "Optional RFU");
+               else if ( cmd[1] >= 0xA0 && cmd[1] <= 0xDF ) snprintf(exp, size, "Custom command");
+               else if ( cmd[1] >= 0xE0 && cmd[1] <= 0xFF ) snprintf(exp, size, "Proprietary command");
+       }
 }
 
 
@@ -317,7 +320,7 @@ void annotateIso7816(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
 }
 
 
-void annotateIso14443_4(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize){
+void annotateIso14443_4(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) {
        // S-block
        if ((cmd[0] & 0xc3) == 0xc2) {
                switch (cmd[0] & 0x30) {
@@ -364,8 +367,7 @@ void annotateIso14443_4(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize){
 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)
-{
+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;
@@ -383,8 +385,7 @@ void annotateIso14443b(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
 
 }
 
-void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
-{
+void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) {
        switch(cmd[0])
        {
        case ISO14443A_CMD_WUPA:
@@ -802,22 +803,18 @@ static bool DecodeMifareData(uint8_t *cmd, uint8_t cmdsize, uint8_t *parity, boo
 }
 
 
-bool is_last_record(uint16_t tracepos, uint8_t *trace, uint16_t traceLen)
-{
+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)
-{
+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)
-{
+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
 
@@ -855,13 +852,13 @@ bool merge_topaz_reader_frames(uint32_t timestamp, uint32_t *duration, uint16_t
 }
 
 
-uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, uint8_t protocol, bool showWaitCycles, bool markCRCBytes)
-{
+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, EndOfTransmissionTimestamp;
+       uint32_t timestamp, first_timestamp;
+       uint32_t EndOfTransmissionTimestamp = 0;
        char explanation[30] = {0};
        uint8_t mfData[32] = {0};
        size_t mfDataLen = 0;
@@ -903,8 +900,6 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
 
        // adjust for different time scales
        if (protocol == ICLASS || protocol == ISO_15693) {
-               first_timestamp *= 32;
-               timestamp *= 32;
                duration *= 32;
        }
 
@@ -976,6 +971,8 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
        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>");
                }
@@ -984,8 +981,6 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
        //--- 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);
 
@@ -1002,16 +997,43 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
                }
        }
 
+       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) {
-                       PrintAndLog(" %10" PRIu32 " | %10" PRIu32 " | %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 : "");
+                       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],
@@ -1037,10 +1059,6 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
 
        if (showWaitCycles && !isResponse && next_record_is_response(tracepos, trace)) {
                uint32_t next_timestamp = *((uint32_t *)(trace + tracepos));
-               // adjust for different time scales
-               if (protocol == ICLASS || protocol == ISO_15693) {
-                       next_timestamp *= 32;
-               }
 
                PrintAndLog(" %10d | %10d | %s | fdt (Frame Delay Time): %d",
                        (EndOfTransmissionTimestamp - first_timestamp),
@@ -1053,129 +1071,88 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
 }
 
 
-int CmdHFList(const char *Cmd)
-{
-       bool showWaitCycles = false;
-       bool markCRCBytes = false;
-       bool loadFromFile = false;
-       bool PCSCtrace = false;
-       bool saveToFile = false;
-       char param1 = '\0';
-       char param2 = '\0';
-       char param3 = '\0';
-       char param4 = '\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));
-       }
-       if (param_getlength(Cmd, 4) == 1) {
-               param4 = param_getchar(Cmd, 4);
-       } else if (strlen(filename) == 0) {
-               param_getstr(Cmd, 4, filename, sizeof(filename));
-       }
-
-       // Validate params
-       bool errors = false;
-
-       if(tlen == 0) {
-               errors = true;
-       }
-
-       if(param1 == 'h'
-                       || (param1 != 0 && param1 != 'f' && param1 != 'c' && param1 != 'l' && param1 != 'p')
-                       || (param2 != 0 && param2 != 'f' && param2 != 'c' && param2 != 'l' && param1 != 'p')
-                       || (param3 != 0 && param3 != 'f' && param3 != 'c' && param3 != 'l' && param1 != 'p')
-                       || (param4 != 0 && param4 != 'f' && param4 != 'c' && param4 != 'l' && param4 != 'p')) {
-               errors = true;
-       }
-
-       if(!errors) {
-               if (strcmp(type,     "iclass") == 0)    protocol = ICLASS;
-               else if(strcmp(type, "14a") == 0)       protocol = ISO_14443A;
-               else if(strcmp(type, "mf") == 0)        protocol = PROTO_MIFARE;
-               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, "14-4") == 0)      protocol = ISO_14443_4;
-               else if(strcmp(type, "15") == 0)        protocol = ISO_15693;
-               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' || param4 == 'f') {
-               showWaitCycles = true;
-       }
+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 (param1 == 'c' || param2 == 'c' || param3 == 'c' || param4 == 'c') {
-               markCRCBytes = true;
+       if (CLIParserParseString(Cmd, argtable, arg_getsize(argtable), true)){
+               CLIParserFree();
+               return 0;
        }
 
-       if (param1 == 'l' || param2 == 'l' || param3 == 'l' || param4 == 'l') {
-               loadFromFile = true;
+       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;
        }
-
-       if (param1 == 'p' || param2 == 'p' || param3 == 'p' || param4 == 'p') {
-               PCSCtrace = true;
+       
+       char load_filename[FILE_PATH_SIZE+1] = {0};
+       if (loadFromFile) {
+               strncpy(load_filename, arg_get_str(5)->sval[0], FILE_PATH_SIZE);
        }
-
-       if ((loadFromFile || saveToFile) && strlen(filename) == 0) {
-               errors = true;
+       char save_filename[FILE_PATH_SIZE+1] = {0};
+       if (saveToFile) {
+               strncpy(save_filename, arg_get_str(6)->sval[0], FILE_PATH_SIZE);
        }
-
-       if (loadFromFile && saveToFile) {
-               errors = true;
+       
+       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;
+               }
        }
 
-       if (errors) {
-               PrintAndLog("List or save protocol data.");
-               PrintAndLog("Usage:  hf list <protocol> [f] [c] [p] [l <filename>]");
-               PrintAndLog("        hf list save <filename>");
-               PrintAndLog("    f      - show frame delay times as well");
-               PrintAndLog("    c      - mark CRC bytes");
-               PrintAndLog("    p      - use trace buffer from PCSC card reader instead of PM3");
-               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("    15     - interpret data as iso15693 communications");
-               PrintAndLog("    iclass - interpret data as iclass communications");
-               PrintAndLog("    topaz  - interpret data as topaz communications");
-               PrintAndLog("    7816   - interpret data as 7816-4 APDU communications");
-               PrintAndLog("    14-4   - interpret data as ISO14443-4 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;
-       }
+       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;
@@ -1185,8 +1162,8 @@ int CmdHFList(const char *Cmd)
                        PrintAndLog("Cannot allocate memory for trace");
                        return 2;
                }
-               if ((tracefile = fopen(filename,"rb")) == NULL) {
-                       PrintAndLog("Could not open file %s", filename);
+               if ((tracefile = fopen(load_filename,"rb")) == NULL) {
+                       PrintAndLog("Could not open file %s", load_filename);
                        free(trace);
                        return 0;
                }
@@ -1212,7 +1189,9 @@ int CmdHFList(const char *Cmd)
                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);
+               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);
@@ -1222,33 +1201,45 @@ int CmdHFList(const char *Cmd)
                                return 2;
                        }
                        trace = p;
-                       GetFromBigBuf(trace, traceLen, 0, NULL, -1, false);
+                       if (!(GetFromBigBuf(trace, traceLen, 0, NULL, 500, false))) {
+                               return 1;
+                       }
                }
        }
 
        if (saveToFile) {
                FILE *tracefile = NULL;
-               if ((tracefile = fopen(filename,"wb")) == NULL) {
-                       PrintAndLog("Could not create file %s", filename);
+               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, filename);
+               PrintAndLog("Recorded Activity (TraceLen = %d bytes) written to file %s", traceLen, save_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");
+               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("");
-               PrintAndLog("      Start |        End | Src | Data (! denotes parity error, ' denotes short bytes)            | CRC | Annotation         |");
+               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);
+               while(tracepos < traceLen) {
+                       tracepos = printTraceLine(tracepos, traceLen, trace, protocol, showWaitCycles, markCRCBytes, prev_EOT, times_in_us);
                }
        }
 
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