1 //-----------------------------------------------------------------------------
3 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
4 // at your option, any later version. See the LICENSE.txt file for the text of
6 //-----------------------------------------------------------------------------
7 // Low frequency T55xx commands
8 //-----------------------------------------------------------------------------
13 #include "proxmark3.h"
17 #include "cmdparser.h"
20 #include "cmdlft55xx.h"
24 #include "../common/crc.h"
26 #define LF_TRACE_BUFF_SIZE 20000 // 32 x 32 x 10 (32 bit times numofblock (7), times clock skip..)
27 #define LF_BITSSTREAM_LEN 1000 // more then 1000 bits shouldn't happend.. 8block * 4 bytes * 8bits =
31 // Default configuration: ASK, not inversed.
32 t55xx_conf_block_t config
= { .modulation
= 2, .inversed
= FALSE
, .block0
= 0x00};
34 int usage_t55xx_config(){
35 PrintAndLog("Usage: lf t55xx config [d <demodulation>] [i 1]");
36 PrintAndLog("Options: ");
37 PrintAndLog(" h This help");
38 PrintAndLog(" d <FSK|ASK|PSK|NZ|BI> Set demodulation FSK / ASK / PSK / NZ / Biphase");
39 PrintAndLog(" i [1] Inverse data signal, defaults to normal");
41 PrintAndLog("Examples:");
42 PrintAndLog(" lf t55xx config d FSK - FSK demodulation");
43 PrintAndLog(" lf t55xx config d FSK i 1 - FSK demodulation, inverse data");
47 int usage_t55xx_read(){
48 PrintAndLog("Usage: lf t55xx read <block> <password>");
49 PrintAndLog(" <block>, block number to read. Between 0-7");
50 PrintAndLog(" <password>, OPTIONAL password (8 hex characters)");
52 PrintAndLog("Examples:");
53 PrintAndLog(" lf t55xx read 0 - read data from block 0");
54 PrintAndLog(" lf t55xx read 0 feedbeef - read data from block 0 password feedbeef");
58 int usage_t55xx_write(){
59 PrintAndLog("Usage: lf t55xx wr <block> <data> [password]");
60 PrintAndLog(" <block>, block number to read. Between 0-7");
61 PrintAndLog(" <data>, 4 bytes of data to write (8 hex characters)");
62 PrintAndLog(" [password], OPTIONAL password 4bytes (8 hex characters)");
64 PrintAndLog("Examples:");
65 PrintAndLog(" lf t55xx wd 3 11223344 - write 11223344 to block 3");
66 PrintAndLog(" lf t55xx wd 3 11223344 feedbeef - write 11223344 to block 3 password feedbeef");
70 int usage_t55xx_trace() {
71 PrintAndLog("Usage: lf t55xx trace [1]");
72 PrintAndLog(" [graph buffer data], if set, use Graphbuffer otherwise read data from tag.");
74 PrintAndLog("Examples:");
75 PrintAndLog(" lf t55xx trace");
76 PrintAndLog(" lf t55xx trace 1");
80 int usage_t55xx_info() {
81 PrintAndLog("Usage: lf t55xx info [1]");
82 PrintAndLog(" [graph buffer data], if set, use Graphbuffer otherwise read data from tag.");
84 PrintAndLog("Examples:");
85 PrintAndLog(" lf t55xx info");
86 PrintAndLog(" lf t55xx info 1");
90 int usage_t55xx_dump(){
91 PrintAndLog("Usage: lf t55xx dump <password>");
92 PrintAndLog(" <password>, OPTIONAL password 4bytes (8 hex symbols)");
94 PrintAndLog("Examples:");
95 PrintAndLog(" lf t55xx dump");
96 PrintAndLog(" lf t55xx dump feedbeef");
100 int usage_t55xx_detect(){
101 PrintAndLog("Usage: lf t55xx detect");
103 PrintAndLog("Examples:");
104 PrintAndLog(" lf t55xx detect");
105 PrintAndLog(" lf t55xx detect 1");
110 static int CmdHelp(const char *Cmd
);
112 int CmdT55xxSetConfig(const char *Cmd
){
115 int foundModulation
= 2;
116 bool inverse
= FALSE
;
119 char modulation
[4] = {0x00};
121 while(param_getchar(Cmd
, cmdp
) != 0x00 && !errors
)
123 switch(param_getchar(Cmd
, cmdp
))
127 return usage_t55xx_config();
129 len
= param_getstr(Cmd
, cmdp
+1, modulation
);
132 if ( strcmp(modulation
, "FSK" ) == 0)
134 else if ( strcmp(modulation
, "ASK" ) == 0)
136 else if ( strcmp(modulation
, "PSK" ) == 0)
138 else if ( strcmp(modulation
, "NZ" ) == 0)
140 else if ( strcmp(modulation
, "BI" ) == 0)
143 PrintAndLog("Unknown modulation '%s'", modulation
);
148 inverse
= param_getchar(Cmd
,cmdp
+1) == '1';
152 PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd
, cmdp
));
159 printConfiguration( config
);
164 return usage_t55xx_config();
166 config
.modulation
= foundModulation
;
167 config
.inversed
= inverse
;
172 int CmdT55xxReadBlock(const char *Cmd
)
175 int password
= 0xFFFFFFFF; //default to blank Block 7
177 char cmdp
= param_getchar(Cmd
, 0);
178 if (cmdp
== 'h' || cmdp
== 'H')
179 return usage_t55xx_read();
181 int res
= sscanf(Cmd
, "%d %x", &block
, &password
);
183 if ( res
< 1 || res
> 2 )
184 return usage_t55xx_read();
187 if ((block
< 0) | (block
> 7)) {
188 PrintAndLog("Block must be between 0 and 7");
192 UsbCommand c
= {CMD_T55XX_READ_BLOCK
, {0, block
, 0}};
193 c
.d
.asBytes
[0] = 0x0;
198 c
.d
.asBytes
[0] = 0x1;
202 if ( !WaitForResponseTimeout(CMD_ACK
,NULL
,2500) ) {
203 PrintAndLog("command execution time out");
208 GetFromBigBuf(got
,sizeof(got
),0);
209 WaitForResponse(CMD_ACK
,NULL
);
210 setGraphBuf(got
, 12000);
217 void DecodeT55xxBlock(){
219 char buf
[6] = {0x00};
222 // use the configuration
223 switch( config
.modulation
){
225 sprintf(cmdStr
,"0 %d", config
.inversed
);
226 FSKrawDemod(cmdStr
, FALSE
);
229 sprintf(cmdStr
,"0 %d 1", config
.inversed
);
230 ASKmanDemod(cmdStr
, FALSE
, FALSE
);
233 sprintf(cmdStr
,"0 %d 1", config
.inversed
);
234 PSKDemod(cmdStr
, FALSE
);
237 sprintf(cmdStr
,"0 %d 1", config
.inversed
);
238 NRZrawDemod(cmdStr
, FALSE
);
241 //BiphaseRawDecode("0",FALSE);
248 int CmdT55xxDetect(const char *Cmd
){
249 char cmdp
= param_getchar(Cmd
, 0);
250 if (cmdp
== 'h' || cmdp
== 'H')
251 return usage_t55xx_detect();
253 // read block 0, Page 0. Configuration.
254 UsbCommand c
= {CMD_T55XX_READ_BLOCK
, {0, 0, 0}};
255 c
.d
.asBytes
[0] = 0x0;
259 // c.arg[2] = password;
260 // c.d.asBytes[0] = 0x1;
264 if ( !WaitForResponseTimeout(CMD_ACK
,NULL
,2500) ) {
265 PrintAndLog("command execution time out");
270 GetFromBigBuf(got
,sizeof(got
),0);
271 WaitForResponse(CMD_ACK
,NULL
);
272 setGraphBuf(got
, 12000);
274 if ( !tryDetectModulation() ){
275 PrintAndLog("Could not detect modulation automatically. Try setting it manually with \'lf t55xx config\'");
280 // detect configuration?
281 bool tryDetectModulation(){
284 t55xx_conf_block_t tests
[10];
286 if (GetFskClock("", FALSE
, FALSE
)){
287 if ( FSKrawDemod("0 0", FALSE
) && test()){
288 tests
[hits
].modulation
= 1;
289 tests
[hits
].inversed
= 0;
292 if ( FSKrawDemod("0 1", FALSE
) && test()) {
293 tests
[hits
].modulation
= 1;
294 tests
[hits
].inversed
= 1;
298 if ( ASKmanDemod("0 0 1", FALSE
, FALSE
) && test()) {
299 tests
[hits
].modulation
= 2;
300 tests
[hits
].inversed
= 0;
304 if ( ASKmanDemod("0 1 1", FALSE
, FALSE
) && test()) {
305 tests
[hits
].modulation
= 2;
306 tests
[hits
].inversed
= 1;
310 if ( NRZrawDemod("0 0 1", FALSE
) && test()) {
311 tests
[hits
].modulation
= 3;
312 tests
[hits
].inversed
= 0;
316 if ( NRZrawDemod("0 1 1", FALSE
) && test()) {
317 tests
[hits
].modulation
= 3;
318 tests
[hits
].inversed
= 1;
322 if ( PSKDemod("0 0 1", FALSE
) && test()) {
323 tests
[hits
].modulation
= 4;
324 tests
[hits
].inversed
= 0;
328 if ( PSKDemod("0 1 1", FALSE
) && test()) {
329 tests
[++hits
].modulation
= 4;
330 tests
[hits
].inversed
= 1;
334 // if (!BiphaseRawDecode("0",FALSE) && test()) {
335 // tests[++hits].modulation = 5;
336 // tests[hits].inversed = 0;
338 // if (!BiphaseRawDecode("1",FALSE) && test()) {
339 // tests[++hits].modulation = 5;
340 // tests[hits].inversed = 1;
344 config
.modulation
= tests
[0].modulation
;
345 config
.inversed
= tests
[0].inversed
;
346 printConfiguration( config
);
351 PrintAndLog("Found [%d] possible matches for modulation.",hits
);
352 for(int i
=0; i
<hits
; ++i
){
353 printConfiguration( tests
[i
] );
361 if ( !DemodBufferLen
)
365 uint8_t safer
= PackBits(si
, 4, DemodBuffer
); si
+= 4;
366 uint8_t resv
= PackBits(si
, 7, DemodBuffer
); si
+= 7+3;
367 uint8_t extend
= PackBits(si
, 1, DemodBuffer
); si
+= 1;
369 //PrintAndLog("test: %X %X %X ", safer, resv, extend);
371 // 2nibble must be zeroed.
372 if ( resv
> 0x00) return FALSE
;
374 if ( safer
== 0x6 || safer
== 0x9){
378 if ( resv
== 0x00) return TRUE
;
382 void printT55xxBlock(const char *demodStr
){
384 uint32_t blockData
= 0;
385 uint8_t bits
[MAX_GRAPH_TRACE_LEN
] = {0x00};
387 if ( !DemodBufferLen
)
391 for (;i
<DemodBufferLen
;++i
)
392 bits
[i
]=DemodBuffer
[i
];
394 blockData
= PackBits(1, 32, bits
);
395 PrintAndLog("0x%08X %s [%s]", blockData
, sprint_bin(bits
+1,32), demodStr
);
398 void printConfiguration( t55xx_conf_block_t b
){
399 PrintAndLog("Modulation : %s", GetSelectedModulationStr(b
.modulation
) );
400 PrintAndLog("Inverted : %s", (b
.inversed
) ? "Yes" : "No" );
401 PrintAndLog("Block0 : %08X", b
.block0
);
407 size = fskdemod(dest, size, 32, 0, 8, 10); // fsk1 RF/32
408 size = fskdemod(dest, size, 32, 1, 8, 10); // fsk1a RF/32
411 size = fskdemod(dest, size, 32, 0, 10, 8); // fsk2 RF/32
412 size = fskdemod(dest, size, 32, 1, 10, 8); // fsk2a RF/32
413 size = fskdemod(dest, size, 50, 1, 10, 8); // fsk2a RF/50
414 size = fskdemod(dest, size, 64, 1, 10, 8); // FSK2a RF/64
417 errCnt = pskRawDemod(bits, &bitlen, 32, 0);
419 int CmdT55xxWriteBlock(const char *Cmd
)
421 int block
= 8; //default to invalid block
422 int data
= 0xFFFFFFFF; //default to blank Block
423 int password
= 0xFFFFFFFF; //default to blank Block 7
425 char cmdp
= param_getchar(Cmd
, 0);
426 if (cmdp
== 'h' || cmdp
== 'H') {
431 int res
= sscanf(Cmd
, "%d %x %x",&block
, &data
, &password
);
433 if ( res
< 2 || res
> 3) {
439 PrintAndLog("Block must be between 0 and 7");
443 UsbCommand c
= {CMD_T55XX_WRITE_BLOCK
, {data
, block
, 0}};
444 c
.d
.asBytes
[0] = 0x0;
446 PrintAndLog("Writing to T55x7");
447 PrintAndLog("block : %d", block
);
448 PrintAndLog("data : 0x%08X", data
);
453 c
.d
.asBytes
[0] = 0x1;
454 PrintAndLog("pwd : 0x%08X", password
);
460 int CmdT55xxReadTrace(const char *Cmd
)
462 char cmdp
= param_getchar(Cmd
, 0);
464 if (strlen(Cmd
) > 1 || cmdp
== 'h' || cmdp
== 'H')
465 return usage_t55xx_trace();
467 if ( strlen(Cmd
)==0){
469 UsbCommand c
= {CMD_T55XX_READ_TRACE
, {0, 0, 0}};
471 if ( !WaitForResponseTimeout(CMD_ACK
,NULL
,2500) ) {
472 PrintAndLog("command execution time out");
477 GetFromBigBuf(got
,sizeof(got
),0);
478 WaitForResponse(CMD_ACK
,NULL
);
479 setGraphBuf(got
, 12000);
484 if ( !DemodBufferLen
)
487 RepaintGraphWindow();
490 uint32_t bl0
= PackBits(si
, 32, DemodBuffer
);
491 uint32_t bl1
= PackBits(si
+32, 32, DemodBuffer
);
493 uint32_t acl
= PackBits(si
, 8, DemodBuffer
); si
+= 8;
494 uint32_t mfc
= PackBits(si
, 8, DemodBuffer
); si
+= 8;
495 uint32_t cid
= PackBits(si
, 5, DemodBuffer
); si
+= 5;
496 uint32_t icr
= PackBits(si
, 3, DemodBuffer
); si
+= 3;
497 uint32_t year
= PackBits(si
, 4, DemodBuffer
); si
+= 4;
498 uint32_t quarter
= PackBits(si
, 2, DemodBuffer
); si
+= 2;
499 uint32_t lotid
= PackBits(si
, 12, DemodBuffer
); si
+= 12;
500 uint32_t wafer
= PackBits(si
, 5, DemodBuffer
); si
+= 5;
501 uint32_t dw
= PackBits(si
, 15, DemodBuffer
);
506 PrintAndLog("-- T55xx Trace Information ----------------------------------");
507 PrintAndLog("-------------------------------------------------------------");
508 PrintAndLog(" ACL Allocation class (ISO/IEC 15963-1) : 0x%02X (%d)", acl
, acl
);
509 PrintAndLog(" MFC Manufacturer ID (ISO/IEC 7816-6) : 0x%02X (%d)", mfc
, mfc
);
510 PrintAndLog(" CID : 0x%02X (%d)", cid
, cid
);
511 PrintAndLog(" ICR IC Revision : %d",icr
);
512 PrintAndLog(" Manufactured");
513 PrintAndLog(" Year/Quarter : %d/%d",year
, quarter
);
514 PrintAndLog(" Lot ID : %d", lotid
);
515 PrintAndLog(" Wafer number : %d", wafer
);
516 PrintAndLog(" Die Number : %d", dw
);
517 PrintAndLog("-------------------------------------------------------------");
518 PrintAndLog(" Raw Data - Page 1");
519 PrintAndLog(" Block 0 : 0x%08X %s", bl0
, sprint_bin(DemodBuffer
+5,32) );
520 PrintAndLog(" Block 0 : 0x%08X %s", bl1
, sprint_bin(DemodBuffer
+37,32) );
521 PrintAndLog("-------------------------------------------------------------");
525 1-8 ACL Allocation class (ISO/IEC 15963-1) 0xE0
526 9-16 MFC Manufacturer ID (ISO/IEC 7816-6) 0x15 Atmel Corporation
527 17-21 CID 0x1 = Atmel ATA5577M1 0x2 = Atmel ATA5577M2
528 22-24 ICR IC revision
529 25-28 YEAR (BCD encoded) 9 (= 2009)
530 29-30 QUARTER 1,2,3,4
536 18-32 DW, die number sequential
542 int CmdT55xxInfo(const char *Cmd
){
544 Page 0 Block 0 Configuration data.
548 char cmdp
= param_getchar(Cmd
, 0);
550 if (cmdp
== 'h' || cmdp
== 'H')
551 return usage_t55xx_info();
555 // read block 0, Page 0. Configuration.
556 UsbCommand c
= {CMD_T55XX_READ_BLOCK
, {0, 0, 0}};
557 c
.d
.asBytes
[0] = 0x0;
561 // c.arg[2] = password;
562 // c.d.asBytes[0] = 0x1;
566 if ( !WaitForResponseTimeout(CMD_ACK
,NULL
,2500) ) {
567 PrintAndLog("command execution time out");
572 GetFromBigBuf(got
,sizeof(got
),0);
573 WaitForResponse(CMD_ACK
,NULL
);
574 setGraphBuf(got
, 12000);
579 if ( !DemodBufferLen
)
584 uint32_t bl0
= PackBits(si
, 32, DemodBuffer
);
586 uint32_t safer
= PackBits(si
, 4, DemodBuffer
); si
+= 4;
587 uint32_t resv
= PackBits(si
, 7, DemodBuffer
); si
+= 7;
588 uint32_t dbr
= PackBits(si
, 3, DemodBuffer
); si
+= 3;
589 uint32_t extend
= PackBits(si
, 1, DemodBuffer
); si
+= 1;
590 uint32_t datamod
= PackBits(si
, 5, DemodBuffer
); si
+= 5;
591 uint32_t pskcf
= PackBits(si
, 2, DemodBuffer
); si
+= 2;
592 uint32_t aor
= PackBits(si
, 1, DemodBuffer
); si
+= 1;
593 uint32_t otp
= PackBits(si
, 1, DemodBuffer
); si
+= 1;
594 uint32_t maxblk
= PackBits(si
, 3, DemodBuffer
); si
+= 3;
595 uint32_t pwd
= PackBits(si
, 1, DemodBuffer
); si
+= 1;
596 uint32_t sst
= PackBits(si
, 1, DemodBuffer
); si
+= 1;
597 uint32_t fw
= PackBits(si
, 1, DemodBuffer
); si
+= 1;
598 uint32_t inv
= PackBits(si
, 1, DemodBuffer
); si
+= 1;
599 uint32_t por
= PackBits(si
, 1, DemodBuffer
); si
+= 1;
602 PrintAndLog("-- T55xx Configuration & Tag Information --------------------");
603 PrintAndLog("-------------------------------------------------------------");
604 PrintAndLog(" Safer key : %s", GetSaferStr(safer
));
605 PrintAndLog(" reserved : %d", resv
);
606 PrintAndLog(" Data bit rate : %s", GetBitRateStr(dbr
));
607 PrintAndLog(" eXtended mode : %s", (extend
) ? "Yes - Warning":"No");
608 PrintAndLog(" Modulation : %s", GetModulationStr(datamod
));
609 PrintAndLog(" PSK clock freq : %d", pskcf
);
610 PrintAndLog(" AOR - Answer on Request : %s", (aor
) ? "Yes":"No");
611 PrintAndLog(" OTP - One Time Pad : %s", (otp
) ? "Yes - Warning":"No" );
612 PrintAndLog(" Max block : %d", maxblk
);
613 PrintAndLog(" Password mode : %s", (pwd
) ? "Yes":"No");
614 PrintAndLog(" Sequence Start Terminator : %s", (sst
) ? "Yes":"No");
615 PrintAndLog(" Fast Write : %s", (fw
) ? "Yes":"No");
616 PrintAndLog(" Inverse data : %s", (inv
) ? "Yes":"No");
617 PrintAndLog(" POR-Delay : %s", (por
) ? "Yes":"No");
618 PrintAndLog("-------------------------------------------------------------");
619 PrintAndLog(" Raw Data - Page 0");
620 PrintAndLog(" Block 0 : 0x%08X %s", bl0
, sprint_bin(DemodBuffer
+5,32) );
621 PrintAndLog("-------------------------------------------------------------");
626 int CmdT55xxDump(const char *Cmd
){
629 uint8_t pwd
[4] = {0x00};
631 char cmdp
= param_getchar(Cmd
, 0);
632 if ( cmdp
== 'h' || cmdp
== 'H') {
637 bool hasPwd
= ( strlen(Cmd
) > 0);
639 if (param_gethex(Cmd
, 0, pwd
, 8)) {
640 PrintAndLog("password must include 8 HEX symbols");
645 for ( int i
= 0; i
<8; ++i
){
646 memset(s
,0,sizeof(s
));
648 sprintf(s
,"%d %02x%02x%02x%02x", i
, pwd
[0],pwd
[1],pwd
[2],pwd
[3]);
652 CmdT55xxReadBlock(s
);
657 char * GetBitRateStr(uint32_t id
){
662 sprintf(retStr
,"%d - RF/8",id
);
665 sprintf(retStr
,"%d - RF/16",id
);
668 sprintf(retStr
,"%d - RF/32",id
);
671 sprintf(retStr
,"%d - RF/40",id
);
674 sprintf(retStr
,"%d - RF/50",id
);
677 sprintf(retStr
,"%d - RF/64",id
);
680 sprintf(retStr
,"%d - RF/100",id
);
683 sprintf(retStr
,"%d - RF/128",id
);
686 sprintf(retStr
,"%d - (Unknown)",id
);
693 char * GetSaferStr(uint32_t id
){
697 sprintf(retStr
,"%d",id
);
699 sprintf(retStr
,"%d - passwd",id
);
702 sprintf(retStr
,"%d - testmode",id
);
707 char * GetModulationStr( uint32_t id
){
713 sprintf(retStr
,"%d - DIRECT (ASK/NRZ)",id
);
716 sprintf(retStr
,"%d - PSK 1 phase change when input changes",id
);
719 sprintf(retStr
,"%d - PSK 2 phase change on bitclk if input high",id
);
722 sprintf(retStr
,"%d - PSK 3 phase change on rising edge of input",id
);
725 sprintf(retStr
,"%d - FSK 1 RF/8 RF/5",id
);
728 sprintf(retStr
,"%d - FSK 2 RF/8 RF/10",id
);
731 sprintf(retStr
,"%d - FSK 1a RF/5 RF/8",id
);
734 sprintf(retStr
,"%d - FSK 2a RF/10 RF/8",id
);
737 sprintf(retStr
,"%d - Manschester",id
);
740 sprintf(retStr
,"%d - Biphase",id
);
743 sprintf(retStr
,"%d - Reserved",id
);
746 sprintf(retStr
,"0x%02X (Unknown)",id
);
752 char * GetSelectedModulationStr( uint8_t id
){
759 sprintf(retStr
,"FSK (%d)",id
);
762 sprintf(retStr
,"ASK (%d)",id
);
765 sprintf(retStr
,"DIRECT/NRZ (%d)",id
);
768 sprintf(retStr
,"PSK (%d)",id
);
771 sprintf(retStr
,"BIPHASE (%d)",id
);
774 sprintf(retStr
,"(Unknown)");
780 uint32_t PackBits(uint8_t start
, uint8_t len
, uint8_t* bits
){
788 for (; j
>= 0; --j
, ++i
){
794 static command_t CommandTable
[] =
796 {"help", CmdHelp
, 1, "This help"},
797 {"config", CmdT55xxSetConfig
, 1, "Set T55XX config for modulation, inversed data"},
798 {"detect", CmdT55xxDetect
, 0, "Try detecting the tag modulation from reading the configuration block."},
799 {"read", CmdT55xxReadBlock
, 0, "<block> [password] -- Read T55xx block data (page 0) [optional password]"},
800 {"write", CmdT55xxWriteBlock
,0, "<block> <data> [password] -- Write T55xx block data (page 0) [optional password]"},
801 {"trace", CmdT55xxReadTrace
, 0, "[1] Show T55xx traceability data (page 1/ blk 0-1)"},
802 {"info", CmdT55xxInfo
, 0, "[1] Show T55xx configuration data (page 0/ blk 0)"},
803 {"dump", CmdT55xxDump
, 0, "[password] Dump T55xx card block 0-7. [optional password]"},
804 {NULL
, NULL
, 0, NULL
}
807 int CmdLFT55XX(const char *Cmd
)
809 CmdsParse(CommandTable
, Cmd
);
813 int CmdHelp(const char *Cmd
)
815 CmdsHelp(CommandTable
);