]> git.zerfleddert.de Git - proxmark3-svn/blobdiff - client/cmdhf.c
add: annotage Mifare Desfire. from https://github.com/JohannesStoye/proxmark3/commi...
[proxmark3-svn] / client / cmdhf.c
index 91743c465102eba7872c5e911722186fbcff5e6b..0cbca7514f59afd0175f36286c382ea1dda7743b 100644 (file)
 
 static int CmdHelp(const char *Cmd);
 
-int CmdHFTune(const char *Cmd)
-{
-  UsbCommand c={CMD_MEASURE_ANTENNA_TUNING_HF};
-  SendCommand(&c);
-  return 0;
+int CmdHFTune(const char *Cmd) {
+       PrintAndLog("Measuring HF antenna, press button to exit");
+       UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING_HF};
+       clearCommandBuffer();
+       SendCommand(&c);
+       return 0;
 }
 
 
-void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
+int applyIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
 {
        switch(cmd[0])
        {
@@ -46,23 +47,19 @@ void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
                // 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;
-               }
+                       snprintf(exp,size,"SELECT_UID");
+               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;
-               }
+                       snprintf(exp,size,"SELECT_UID-2");
+               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;
@@ -124,9 +121,13 @@ void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
        case MIFARE_ULEV1_READSIG :             snprintf(exp,size,"READ_SIG"); break;
        case MIFARE_ULEV1_CHECKTEAR :   snprintf(exp,size,"CHK_TEARING(%d)",cmd[1]); break;
        case MIFARE_ULEV1_VCSL :                snprintf(exp,size,"VCSL"); break;
-       default:                                                snprintf(exp,size,"?"); break;
+       default:                                                return 0;
        }
-       return;
+       return 1;
+}
+
+void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize){
+       applyIso14443a(exp, size, cmd, cmdsize);
 }
 
 void annotateIclass(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
@@ -256,6 +257,83 @@ void annotateIso7816(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize){
        }
 }
 
+// MIFARE DESFire
+void annotateMfDesfire(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize){
+       
+       // it's basically a ISO14443a tag, so try annotation from there
+       if (!applyIso14443a(exp, size, cmd, cmdsize)){
+               //PrintAndLog("rest");
+               //PrintAndLog("(%d)",cmd[0]);
+               // S-block 11xxx010
+               if ( (cmd[0] & 0xC0) && (cmdsize == 3) ) {              
+                       switch ( (cmd[0] & 0x30)  ) {
+                               case 0x30       : snprintf(exp, size, "S-block DESELECT"); break;
+                               case 0x00       : snprintf(exp, size, "S-block WTX"); break;
+                               default         : snprintf(exp, size, "S-block"); break;
+                       }               
+               }
+               // R-block (ack) 101xx01x
+               else if ( ((cmd[0] & 0xB0) == 0xA0) && ( cmdsize > 2) ) {
+                       if ( (cmd[0] & 0x10) == 0 ) 
+                               snprintf(exp, size, "R-block ACK(%d)", (cmd[0] & 0x01));
+                       else
+                               snprintf(exp, size, "R-block NACK(%d)", (cmd[0] & 0x01));
+               }
+               // I-block 000xCN1x
+               else if ( (cmd[0] & 0xC0) == 0x00){
+                       // PCB [CID] [NAD] [INF] CRC CRC
+                       int pos = 1;
+                       if ( (cmd[0] & 0x08) == 0x08) // cid byte following
+                               pos = pos + 1;
+                       if ( (cmd[0] & 0x04) == 0x04) // nad byte following
+                               pos = pos + 1;
+                       //PrintAndLog("[%d]",pos);
+                       switch ( cmd[pos] ){
+                               case MFDES_CREATE_APPLICATION                   :snprintf(exp, size, "CREATE APPLICATION");break;
+                               case MFDES_DELETE_APPLICATION                   :snprintf(exp, size, "DELETE APPLICATION");break;
+                               case MFDES_GET_APPLICATION_IDS                  :snprintf(exp, size, "GET APPLICATION IDS");break;
+                               case MFDES_SELECT_APPLICATION                   :snprintf(exp, size, "SELECT APPLICATION");break;
+                               case MFDES_FORMAT_PICC                                  :snprintf(exp, size, "FORMAT PICC");break;
+                               case MFDES_GET_VERSION                                  :snprintf(exp, size, "GET VERSION");break;
+                               case MFDES_READ_DATA                                    :snprintf(exp, size, "READ DATA");break;
+                               case MFDES_WRITE_DATA                                   :snprintf(exp, size, "WRITE DATA");break;
+                               case MFDES_GET_VALUE                                    :snprintf(exp, size, "GET VALUE");break;
+                               case MFDES_CREDIT                                               :snprintf(exp, size, "CREDIT");break;
+                               case MFDES_DEBIT                                                :snprintf(exp, size, "DEBIT");break;
+                               case MFDES_LIMITED_CREDIT                               :snprintf(exp, size, "LIMITED CREDIT");break;
+                               case MFDES_WRITE_RECORD                                 :snprintf(exp, size, "WRITE RECORD");break;
+                               case MFDES_READ_RECORDS                                 :snprintf(exp, size, "READ RECORDS");break;
+                               case MFDES_CLEAR_RECORD_FILE                    :snprintf(exp, size, "CLEAR RECORD FILE");break;
+                               case MFDES_COMMIT_TRANSACTION                   :snprintf(exp, size, "COMMIT TRANSACTION");break;
+                               case MFDES_ABORT_TRANSACTION                    :snprintf(exp, size, "ABORT TRANSACTION");break;
+                               case MFDES_GET_FREE_MEMORY                              :snprintf(exp, size, "GET FREE MEMORY");break;
+                               case MFDES_GET_FILE_IDS                                 :snprintf(exp, size, "GET FILE IDS");break;
+                               case MFDES_GET_ISOFILE_IDS                              :snprintf(exp, size, "GET ISOFILE IDS");break;
+                               case MFDES_GET_FILE_SETTINGS                    :snprintf(exp, size, "GET FILE SETTINGS");break;
+                               case MFDES_CHANGE_FILE_SETTINGS                 :snprintf(exp, size, "CHANGE FILE SETTINGS");break;
+                               case MFDES_CREATE_STD_DATA_FILE                 :snprintf(exp, size, "CREATE STD DATA FILE");break;
+                               case MFDES_CREATE_BACKUP_DATA_FILE              :snprintf(exp, size, "CREATE BACKUP DATA FILE");break;
+                               case MFDES_CREATE_VALUE_FILE                    :snprintf(exp, size, "CREATE VALUE FILE");break;
+                               case MFDES_CREATE_LINEAR_RECORD_FILE    :snprintf(exp, size, "CREATE LINEAR RECORD FILE");break;
+                               case MFDES_CREATE_CYCLIC_RECORD_FILE    :snprintf(exp, size, "CREATE CYCLIC RECORD FILE");break;
+                               case MFDES_DELETE_FILE                                  :snprintf(exp, size, "DELETE FILE");break;
+                               case MFDES_AUTHENTICATE                                 :snprintf(exp, size, "AUTH NATIVE (keyNo %d)", cmd[pos+1]);break;  // AUTHENTICATE_NATIVE
+                               case MFDES_AUTHENTICATE_ISO                             :snprintf(exp, size, "AUTH ISO (keyNo %d)", cmd[pos+1]);break;  // AUTHENTICATE_STANDARD
+                               case MFDES_AUTHENTICATE_AES                             :snprintf(exp, size, "AUTH AES (keyNo %d)", cmd[pos+1]);break;
+                               case MFDES_CHANGE_KEY_SETTINGS                  :snprintf(exp, size, "CHANGE KEY SETTINGS");break;
+                               case MFDES_GET_KEY_SETTINGS                             :snprintf(exp, size, "GET KEY SETTINGS");break;
+                               case MFDES_CHANGE_KEY                                   :snprintf(exp, size, "CHANGE KEY");break;
+                               case MFDES_GET_KEY_VERSION                              :snprintf(exp, size, "GET KEY VERSION");break;
+                               case MFDES_AUTHENTICATION_FRAME                 :snprintf(exp, size, "AUTH FRAME / NEXT FRAME");break;
+                               default                                                                 :break;
+                       }
+               }else{
+                       // anything else
+                       snprintf(exp,size,"?");
+               }
+       }
+}
+
 /**
 06 00 = INITIATE
 0E xx = SELECT ID (xx = Chip-ID)
@@ -270,7 +348,21 @@ void annotateIso7816(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_REQB             : {
+                       
+                       switch ( cmd[2] & 0x07 ) {
+                               case 0: snprintf(exp, size,"1 slot ");break;
+                               case 1: snprintf(exp, size,"2 slots ");break; 
+                               case 2: snprintf(exp, size,"4 slots ");break;
+                               case 3: snprintf(exp, size,"8 slots ");break;
+                               default: snprintf(exp, size,"16 slots ");break;
+                       }                       
+                       if ( (cmd[2] & 0x8) )
+                               snprintf(exp, size,"WUPB");
+                       else
+                               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;
@@ -509,6 +601,7 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
                                crcStatus = iso14443B_CRC_check(isResponse, frame, data_len);
                                break;
                        case ISO_14443A:
+                       case MFDES:
                                crcStatus = iso14443A_CRC_check(isResponse, frame, data_len);
                                break;                          
                        default: 
@@ -531,7 +624,7 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
                        oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01);
                }
                uint8_t parityBits = parityBytes[j>>3];
-               if (protocol != ISO_14443B && isResponse && (oddparity != ((parityBits >> (7-(j&0x0007))) & 0x01))) {
+               if (protocol != ISO_14443B && protocol != ISO_7816_4 &&  (isResponse || protocol == ISO_14443A)  && (oddparity != ((parityBits >> (7-(j&0x0007))) & 0x01))) {
                        snprintf(line[j/16]+(( j % 16) * 4),110, "%02x! ", frame[j]);
 
                } else {
@@ -550,9 +643,10 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
                }
        }
 
-       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 " : "    "));
 
@@ -563,6 +657,7 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
                switch(protocol) {
                        case ICLASS:            annotateIclass(explanation,sizeof(explanation),frame,data_len); break;
                        case ISO_14443A:        annotateIso14443a(explanation,sizeof(explanation),frame,data_len); break;
+                       case MFDES:                     annotateMfDesfire(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_7816_4:        annotateIso7816(explanation,sizeof(explanation),frame,data_len); break;
@@ -602,73 +697,87 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
        return tracepos;
 }
 
+int usage_hf_list(){
+       PrintAndLog("List protocol data in trace buffer.");
+       PrintAndLog("Usage:  hf list <protocol> [f][c]");
+       PrintAndLog("    f      - show frame delay times as well");
+       PrintAndLog("    c      - mark CRC bytes");
+       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("    des    - interpret data as DESFire communications");
+       PrintAndLog("    iclass - interpret data as iclass communications");
+       PrintAndLog("    topaz  - interpret data as topaz communications");
+       PrintAndLog("    7816   - interpret data as iso7816-4 communications");
+       PrintAndLog("");
+       PrintAndLog("example:   hf list 14a f");
+       PrintAndLog("                   hf list iclass");
+       return 0;
+}
+int usage_hf_search(){
+       PrintAndLog("Usage: hf search");
+       PrintAndLog("Will try to find a HF read out of the unknown tag. Stops when found.");
+       PrintAndLog("Options:");
+       PrintAndLog("       h   - This help");
+       PrintAndLog("");
+       return 0;
+}
+int usage_hf_snoop(){
+       PrintAndLog("Usage: hf snoop <skip pairs> <skip triggers>");
+       PrintAndLog("The high frequence snoop will assign all available memory on device for snooped data");
+       PrintAndLog("User the 'data samples' command to download from device,  and 'data plot' to look at it");
+       PrintAndLog("Press button to quit the snooping.");
+       PrintAndLog("Options:");
+       PrintAndLog("       h                           - This help");
+       PrintAndLog("       <skip pairs>        - skip sample pairs");
+       PrintAndLog("       <skip triggers>     - skip number of triggers");
+       PrintAndLog("");
+       PrintAndLog("example:   hf snoop");
+       PrintAndLog("           hf snoop 1000 0");
+       return 0;
+}
 
 int CmdHFList(const char *Cmd)
 {
+       clearCommandBuffer();
+               
        bool showWaitCycles = false;
        bool markCRCBytes = false;
-       char type[40] = {0};
-       int tlen = param_getstr(Cmd,0,type);
+       char type[10] = {0};
+       //int tlen = param_getstr(Cmd,0,type);
        char param1 = param_getchar(Cmd, 1);
        char param2 = param_getchar(Cmd, 2);
        bool errors = false;
        uint8_t protocol = 0;
-       //Validate params
-
-       if(tlen == 0) {
-               errors = true;
-       }
-
-       if(param1 == 'h'
-                       || (param1 != 0 && param1 != 'f' && param1 != 'c')
-                       || (param2 != 0 && param2 != 'f' && param2 != 'c')) {
-               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,"topaz")== 0) {
-                       protocol = TOPAZ;
-               } else if(strcmp(type,"7816")== 0) {
-                       protocol = ISO_7816_4;                  
-               } 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][c]");
-               PrintAndLog("    f      - show frame delay times as well");
-               PrintAndLog("    c      - mark CRC bytes");
-               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("    topaz  - interpret data as topaz communications");
-               PrintAndLog("    7816   - interpret data as iso7816-4 communications");
-               PrintAndLog("");
-               PrintAndLog("example: hf list 14a f");
-               PrintAndLog("example: hf list iclass");
-               return 0;
+       //Validate params H or empty
+       if (strlen(Cmd) < 1 || param1 == 'h' || param1 == 'H') return usage_hf_list();
+       
+       //Validate params  F,C
+       if(
+               (param1 != 0 && param1 != 'f' && param1 != 'c') || 
+               (param2 != 0 && param2 != 'f' && param2 != 'c')
+               ) {
+               return usage_hf_list();
        }
 
+       param_getstr(Cmd,0,type);
+       
+       // validate type of output
+       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, "topaz")== 0)      protocol = TOPAZ;
+       else if(strcmp(type, "7816")== 0)       protocol = ISO_7816_4;  
+       else if(strcmp(type,"des")== 0)         protocol = MFDES;                       
+       else if(strcmp(type, "raw")== 0)        protocol = -1;//No crc, no annotations
+       else errors = true;
 
-       if (param1 == 'f' || param2 == 'f') {
-               showWaitCycles = true;
-       }
+       if (errors) return usage_hf_list();
 
-       if (param1 == 'c' || param2 == 'c') {
-               markCRCBytes = true;
-       }
+       if (param1 == 'f' || param2 == 'f') showWaitCycles = true;
+       if (param1 == 'c' || param2 == 'c') markCRCBytes = true;
 
        uint8_t *trace;
        uint16_t tracepos = 0;
@@ -710,16 +819,20 @@ int CmdHFList(const char *Cmd)
 }
 
 int CmdHFSearch(const char *Cmd){
-       int ans = 0;
+
+       char cmdp = param_getchar(Cmd, 0);      
+       if (cmdp == 'h' || cmdp == 'H') return usage_hf_search();
+       
        PrintAndLog("");
-       ans = CmdHF14AReader("s");
+       int ans = CmdHF14AReader("s");
+
        if (ans > 0) {
-               PrintAndLog("\nValid ISO14443A Tag Found - Quiting Search\n");
+               PrintAndLog("\nValid ISO14443-A Tag Found - Quiting Search\n");
                return ans;
        } 
-       ans = HF14BInfo(false);
+       ans = CmdHF14BReader("s");
        if (ans) {
-               PrintAndLog("\nValid ISO14443B Tag Found - Quiting Search\n");
+               PrintAndLog("\nValid ISO14443-B Tag Found - Quiting Search\n");
                return ans;
        }
        ans = HFiClassReader("", false, false);
@@ -732,37 +845,55 @@ int CmdHFSearch(const char *Cmd){
                PrintAndLog("\nValid ISO15693 Tag Found - Quiting Search\n");
                return ans;
        }
+       ans = CmdHFTopazReader("s");
+       if (ans == 0) {
+               PrintAndLog("\nValid Topaz Tag Found - Quiting Search\n");
+               return 1;
+       }
        PrintAndLog("\nno known/supported 13.56 MHz tags found\n");
        return 0;
 }
 
-static command_t CommandTable[] = 
+int CmdHFSnoop(const char *Cmd)
 {
-  {"help",        CmdHelp,          1, "This help"},
-  {"14a",         CmdHF14A,         1, "{ ISO14443A RFIDs... }"},
-  {"14b",         CmdHF14B,         1, "{ ISO14443B RFIDs... }"},
-  {"15",          CmdHF15,          1, "{ ISO15693 RFIDs... }"},
-  {"epa",         CmdHFEPA,         1, "{ German Identification Card... }"},
-  {"legic",       CmdHFLegic,       0, "{ LEGIC RFIDs... }"},
-  {"iclass",      CmdHFiClass,      1, "{ ICLASS RFIDs... }"},
-  {"mf",               CmdHFMF,                1, "{ MIFARE RFIDs... }"},
-  {"mfu",         CmdHFMFUltra,     1, "{ MIFARE Ultralight RFIDs... }"},
-  {"mfdes",                    CmdHFMFDes,             1, "{ MIFARE Desfire RFIDs... }"},
-  {"topaz",                    CmdHFTopaz,             1, "{ TOPAZ (NFC Type 1) RFIDs... }"},
-  {"tune",                     CmdHFTune,      0, "Continuously measure HF antenna tuning"},
-  {"list",        CmdHFList,        1, "List protocol data in trace buffer"},
-  {"search",      CmdHFSearch,      1, "Search for known HF tags [preliminary]"},
+       char cmdp = param_getchar(Cmd, 0);      
+       if (cmdp == 'h' || cmdp == 'H') return usage_hf_snoop();
+       
+       int skippairs =  param_get32ex(Cmd, 0, 0, 10);
+       int skiptriggers =  param_get32ex(Cmd, 1, 0, 10);
+       
+       UsbCommand c = {CMD_HF_SNIFFER, {skippairs, skiptriggers, 0}};
+       clearCommandBuffer();
+       SendCommand(&c);
+       return 0;
+}
+
+static command_t CommandTable[] = {
+       {"help",        CmdHelp,          1, "This help"},
+       {"14a",         CmdHF14A,         1, "{ ISO14443A RFIDs... }"},
+       {"14b",         CmdHF14B,         1, "{ ISO14443B RFIDs... }"},
+       {"15",          CmdHF15,          1, "{ ISO15693 RFIDs... }"},
+       {"epa",         CmdHFEPA,         1, "{ German Identification Card... }"},
+       {"legic",       CmdHFLegic,       1, "{ LEGIC RFIDs... }"},
+       {"iclass",      CmdHFiClass,      1, "{ ICLASS RFIDs... }"},
+       {"mf",          CmdHFMF,                  1, "{ MIFARE RFIDs... }"},
+       {"mfu",         CmdHFMFUltra,     1, "{ MIFARE Ultralight RFIDs... }"},
+       {"mfdes",               CmdHFMFDes,               1, "{ MIFARE Desfire RFIDs... }"},
+       {"topaz",               CmdHFTopaz,               1, "{ TOPAZ (NFC Type 1) RFIDs... }"},
+       {"tune",                CmdHFTune,            0, "Continuously measure HF antenna tuning"},
+       {"list",        CmdHFList,        1, "List protocol data in trace buffer"},
+       {"search",      CmdHFSearch,      1, "Search for known HF tags [preliminary]"},
+       {"snoop",       CmdHFSnoop,       0, "<samples to skip (10000)> <triggers to skip (1)> Generic LF/HF Snoop in Testing stage"},
        {NULL, NULL, 0, NULL}
 };
 
-int CmdHF(const char *Cmd)
-{
-  CmdsParse(CommandTable, Cmd);
-  return 0; 
+int CmdHF(const char *Cmd) {
+       clearCommandBuffer();
+       CmdsParse(CommandTable, Cmd);
+       return 0; 
 }
 
-int CmdHelp(const char *Cmd)
-{
-  CmdsHelp(CommandTable);
-  return 0;
+int CmdHelp(const char *Cmd) {
+       CmdsHelp(CommandTable);
+       return 0;
 }
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