git.zerfleddert.de Git - proxmark3-svn/blobdiff

// High frequency Legic commands

//-----------------------------------------------------------------------------

// High frequency Legic commands

//-----------------------------------------------------------------------------

+#include "cmdhflegic.h"

+

#include <stdio.h>

#include <string.h>

#include <stdio.h>

#include <string.h>

-//#include "proxusb.h"

-#include "proxmark3.h"

-#include "data.h"

+#include <inttypes.h>

+#include "comms.h"

#include "ui.h"

#include "cmdparser.h"

#include "ui.h"

#include "cmdparser.h"

-#include "cmdhflegic.h"

#include "cmdmain.h"

+#include "util.h"

+#include "../include/legic.h"

static int CmdHelp(const char *Cmd);

-static command_t CommandTable[] =

+static command_t CommandTable[] =

{

- {"help", CmdHelp, 1, "This help"},

- {"decode", CmdLegicDecode, 0, "Display deobfuscated and decoded LEGIC RF tag data (use after hf legic reader)"},

- {"reader", CmdLegicRFRead, 0, "[offset [length]] -- read bytes from a LEGIC card"},

- {"save", CmdLegicSave, 0, "<filename> [<length>] -- Store samples"},

- {"load", CmdLegicLoad, 0, "<filename> -- Restore samples"},

- {"sim", CmdLegicRfSim, 0, "[phase drift [frame drift [req/resp drift]]] Start tag simulator (use after load or read)"},

- {"write", CmdLegicRfWrite,0, "<offset> <length> -- Write sample buffer (user after load or read)"},

- {"fill", CmdLegicRfFill, 0, "<offset> <length> <value> -- Fill/Write tag with constant value"},

- {NULL, NULL, 0, NULL}

+ {"help", CmdHelp, 1, "This help"},

+ {"decode", CmdLegicDecode, 0, "Display deobfuscated and decoded LEGIC RF tag data (use after hf legic reader)"},

+ {"reader", CmdLegicRFRead, 0, "[offset [length]] -- read bytes from a LEGIC card"},

+ {"save", CmdLegicSave, 0, "<filename> [<length>] -- Store samples"},

+ {"load", CmdLegicLoad, 0, "<filename> -- Restore samples"},

+ {"sim", CmdLegicRfSim, 0, "[tagtype, 0:MIM22, 1:MIM256, 2:MIM1024] Start tag simulator (use after load or read)"},

+ {"write", CmdLegicRfWrite,0, "<offset> <length> -- Write sample buffer (user after load or read)"},

+ {"fill", CmdLegicRfFill, 0, "<offset> <length> <value> -- Fill/Write tag with constant value"},

+ {NULL, NULL, 0, NULL}

};

int CmdHFLegic(const char *Cmd)

{

};

int CmdHFLegic(const char *Cmd)

{

- CmdsParse(CommandTable, Cmd);

- return 0;

+ CmdsParse(CommandTable, Cmd);

+ return 0;

}

int CmdHelp(const char *Cmd)

{

}

int CmdHelp(const char *Cmd)

{

- CmdsHelp(CommandTable);

- return 0;

+ CmdsHelp(CommandTable);

+ return 0;

}

/*

}

/*

*/

int CmdLegicDecode(const char *Cmd)

{

*/

int CmdLegicDecode(const char *Cmd)

{

- int h, i, j, k, n;

- int segment_len = 0;

- int segment_flag = 0;

- int stamp_len = 0;

- int crc = 0;

- int wrp = 0;

- int wrc = 0;

- int data_buf[1032]; // receiver buffer

- char out_string[3076]; // just use big buffer - bad practice

- char token_type[4];

- int delivered = 0;

-

- h = 0;

-

- // copy data from proxmark into buffer

- for (i = 0; i < 256; i += 12, h += 48) {

- UsbCommand c = {CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K, {i, 0, 0}};

- SendCommand(&c);

- WaitForResponse(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K, NULL);

-

- for (j = 0; j < 48; j += 8) {

- for (k = 0; k < 8; k++) {

- data_buf[h+j+k] = sample_buf[j+k];

- }

- delivered += 8;

- if (delivered >= 1024)

- break;

- }

-

- // Output CDF System area (9 bytes) plus remaining header area (12 bytes)

-

- PrintAndLog("\nCDF: System Area");

-

- PrintAndLog("MCD: %02x, MSN: %02x %02x %02x, MCC: %02x",

- data_buf[0],

- data_buf[1],

- data_buf[2],

- data_buf[3],

- data_buf[4]

- );

-

- crc = data_buf[4];

-

- switch (data_buf[5]&0x7f) {

- case 0x00 ... 0x2f:

- strncpy(token_type, "IAM",sizeof(token_type));

- break;

- case 0x30 ... 0x6f:

- strcpy(token_type, "SAM");

- break;

- case 0x70 ... 0x7f:

- strcpy(token_type, "GAM");

- break;

- default:

- strcpy(token_type, "???");

- break;

- }

-

- stamp_len = 0xfc - data_buf[6];

-

- PrintAndLog("DCF: %02x %02x, Token_Type=%s (OLE=%01u), Stamp_len=%02u",

- data_buf[5],

- data_buf[6],

- token_type,

- (data_buf[5]&0x80)>>7,

- stamp_len

- );

-

- PrintAndLog("WRP=%02u, WRC=%01u, RD=%01u, raw=%02x, SSC=%02x",

- data_buf[7]&0x0f,

- (data_buf[7]&0x70)>>4,

- (data_buf[7]&0x80)>>7,

- data_buf[7],

- data_buf[8]

- );

-

- PrintAndLog("Remaining Header Area");

-

- PrintAndLog("%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x",

- data_buf[9],

- data_buf[10],

- data_buf[11],

- data_buf[12],

- data_buf[13],

- data_buf[14],

- data_buf[15],

- data_buf[16],

- data_buf[17],

- data_buf[18],

- data_buf[19],

- data_buf[20],

- data_buf[21]

- );

-

- PrintAndLog("\nADF: User Area");

-

- i = 22;

- for (n=0; n<64; n++) {

- segment_len = ((data_buf[i+1]^crc)&0x0f) * 256 + (data_buf[i]^crc);

- segment_flag = ((data_buf[i+1]^crc)&0xf0)>>4;

-

- wrp = (data_buf[i+2]^crc);

- wrc = ((data_buf[i+3]^crc)&0x70)>>4;

-

- PrintAndLog("Segment %02u: raw header=%02x %02x %02x %02x, flag=%01x (valid=%01u, last=%01u), len=%04u, WRP=%02u, WRC=%02u, RD=%01u, CRC=%02x",

- n,

- data_buf[i]^crc,

- data_buf[i+1]^crc,

- data_buf[i+2]^crc,

- data_buf[i+3]^crc,

- segment_flag,

- (segment_flag&0x4)>>2,

- (segment_flag&0x8)>>3,

- segment_len,

- wrp,

- wrc,

- ((data_buf[i+3]^crc)&0x80)>>7,

- (data_buf[i+4]^crc)

- );

-

- i+=5;

-

- if (wrc>0) {

- PrintAndLog("WRC protected area:");

- for (k=0, j=0; k < wrc && j<(sizeof(out_string)-3); k++, i++, j += 3) {

- sprintf(&out_string[j], "%02x", (data_buf[i]^crc));

- out_string[j+2] = ' ';

- };

-

- out_string[j] = '\0';

-

- PrintAndLog("%s", out_string);

- }

-

- if (wrp>wrc) {

- PrintAndLog("Remaining write protected area:");

-

- for (k=0, j=0; k < (wrp-wrc) && j<(sizeof(out_string)-3); k++, i++, j += 3) {

- sprintf(&out_string[j], "%02x", (data_buf[i]^crc));

- out_string[j+2] = ' ';

- };

-

- out_string[j] = '\0';

-

- PrintAndLog("%s", out_string);

- if((wrp-wrc) == 8) {

- sprintf(out_string,"Card ID: %2X%02X%02X",data_buf[i-4]^crc,data_buf[i-3]^crc,data_buf[i-2]^crc);

- PrintAndLog("%s", out_string);

- }

-

- PrintAndLog("Remaining segment payload:");

- for (k=0, j=0; k < (segment_len - wrp - 5) && j<(sizeof(out_string)-3); k++, i++, j += 3) {

- sprintf(&out_string[j], "%02x", (data_buf[i]^crc));

- out_string[j+2] = ' ';

- };

-

- out_string[j] = '\0';

-

- PrintAndLog("%s", out_string);

-

- // end with last segment

- if (segment_flag & 0x8)

- return 0;

- };

- return 0;

+ int i, j, k, n;

+ int segment_len = 0;

+ int segment_flag = 0;

+ int stamp_len = 0;

+ int crc = 0;

+ int wrp = 0;

+ int wrc = 0;

+ uint8_t data_buf[1053]; // receiver buffer

+ char out_string[3076]; // just use big buffer - bad practice

+ char token_type[4];

+

+ // copy data from proxmark into buffer

+ GetFromBigBuf(data_buf, sizeof(data_buf), 0, NULL, -1, false);

+

+ // Output CDF System area (9 bytes) plus remaining header area (12 bytes)

+

+ PrintAndLog("\nCDF: System Area");

+

+ PrintAndLog("MCD: %02x, MSN: %02x %02x %02x, MCC: %02x",

+ data_buf[0],

+ data_buf[1],

+ data_buf[2],

+ data_buf[3],

+ data_buf[4]

+ );

+

+ crc = data_buf[4];

+

+ switch (data_buf[5]&0x7f) {

+ case 0x00 ... 0x2f:

+ strncpy(token_type, "IAM",sizeof(token_type));

+ break;

+ case 0x30 ... 0x6f:

+ strcpy(token_type, "SAM");

+ break;

+ case 0x70 ... 0x7f:

+ strcpy(token_type, "GAM");

+ break;

+ default:

+ strcpy(token_type, "???");

+ break;

+ }

+

+ stamp_len = 0xfc - data_buf[6];

+

+ PrintAndLog("DCF: %02x %02x, Token_Type=%s (OLE=%01u), Stamp_len=%02u",

+ data_buf[5],

+ data_buf[6],

+ token_type,

+ (data_buf[5]&0x80)>>7,

+ stamp_len

+ );

+

+ PrintAndLog("WRP=%02u, WRC=%01u, RD=%01u, raw=%02x, SSC=%02x",

+ data_buf[7]&0x0f,

+ (data_buf[7]&0x70)>>4,

+ (data_buf[7]&0x80)>>7,

+ data_buf[7],

+ data_buf[8]

+ );

+

+ PrintAndLog("Remaining Header Area");

+

+ PrintAndLog("%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x",

+ data_buf[9],

+ data_buf[10],

+ data_buf[11],

+ data_buf[12],

+ data_buf[13],

+ data_buf[14],

+ data_buf[15],

+ data_buf[16],

+ data_buf[17],

+ data_buf[18],

+ data_buf[19],

+ data_buf[20],

+ data_buf[21]

+ );

+

+ PrintAndLog("\nADF: User Area");

+

+ i = 22;

+ for (n=0; n<64; n++) {

+ segment_len = ((data_buf[i+1]^crc)&0x0f) * 256 + (data_buf[i]^crc);

+ segment_flag = ((data_buf[i+1]^crc)&0xf0)>>4;

+

+ wrp = (data_buf[i+2]^crc);

+ wrc = ((data_buf[i+3]^crc)&0x70)>>4;

+

+ PrintAndLog("Segment %02u: raw header=%02x %02x %02x %02x, flag=%01x (valid=%01u, last=%01u), len=%04u, WRP=%02u, WRC=%02u, RD=%01u, CRC=%02x",

+ n,

+ data_buf[i]^crc,

+ data_buf[i+1]^crc,

+ data_buf[i+2]^crc,

+ data_buf[i+3]^crc,

+ segment_flag,

+ (segment_flag&0x4)>>2,

+ (segment_flag&0x8)>>3,

+ segment_len,

+ wrp,

+ wrc,

+ ((data_buf[i+3]^crc)&0x80)>>7,

+ (data_buf[i+4]^crc)

+ );

+

+ i+=5;

+

+ if (wrc>0) {

+ PrintAndLog("WRC protected area:");

+ for (k=0, j=0; k < wrc && j<(sizeof(out_string)-3); k++, i++, j += 3) {

+ sprintf(&out_string[j], "%02x", (data_buf[i]^crc));

+ out_string[j+2] = ' ';

+ };

+

+ out_string[j] = '\0';

+

+ PrintAndLog("%s", out_string);

+ }

+

+ if (wrp>wrc) {

+ PrintAndLog("Remaining write protected area:");

+

+ for (k=0, j=0; k < (wrp-wrc) && j<(sizeof(out_string)-3); k++, i++, j += 3) {

+ sprintf(&out_string[j], "%02x", (data_buf[i]^crc));

+ out_string[j+2] = ' ';

+ };

+

+ out_string[j] = '\0';

+

+ PrintAndLog("%s", out_string);

+ if((wrp-wrc) == 8) {

+ sprintf(out_string,"Card ID: %2X%02X%02X",data_buf[i-4]^crc,data_buf[i-3]^crc,data_buf[i-2]^crc);

+ PrintAndLog("%s", out_string);

+ }

+

+ PrintAndLog("Remaining segment payload:");

+ for (k=0, j=0; k < (segment_len - wrp - 5) && j<(sizeof(out_string)-3); k++, i++, j += 3) {

+ sprintf(&out_string[j], "%02x", (data_buf[i]^crc));

+ out_string[j+2] = ' ';

+ };

+

+ out_string[j] = '\0';

+

+ PrintAndLog("%s", out_string);

+

+ // end with last segment

+ if (segment_flag & 0x8)

+ return 0;

+ };

+ return 0;

}

int CmdLegicRFRead(const char *Cmd)

{

}

int CmdLegicRFRead(const char *Cmd)

{

- int byte_count=0,offset=0;

- sscanf(Cmd, "%i %i", &offset, &byte_count);

- if(byte_count == 0) byte_count = -1;

- if(byte_count + offset > 1024) byte_count = 1024 - offset;

- UsbCommand c={CMD_READER_LEGIC_RF, {offset, byte_count, 0}};

- SendCommand(&c);

- return 0;

+ int byte_count=0,offset=0;

+ sscanf(Cmd, "%i %i", &offset, &byte_count);

+ if(byte_count == 0) byte_count = -1;

+ if(byte_count + offset > 1024) byte_count = 1024 - offset;

+ UsbCommand c={CMD_READER_LEGIC_RF, {offset, byte_count, 0}};

+ SendCommand(&c);

+ UsbCommand resp;

+ WaitForResponse(CMD_ACK,&resp);

+ switch (resp.arg[0]) {

+ legic_card_select_t card;

+ case 0:

+ memcpy(&card, resp.d.asBytes, sizeof(card));

+ PrintAndLog("Card (MIM %i) read, use 'hf legic decode' or", card.cardsize);

+ PrintAndLog("'data hexsamples %d' to view results", (resp.arg[1] + 7) & ~7);

+ break;

+ case 1:

+ PrintAndLog("No or unknown card found, aborting");

+ break;

+ case 2:

+ PrintAndLog("operation failed @ 0x%03.3x", resp.arg[1]);

+ break;

+ }

+ return resp.arg[0];

}

int CmdLegicLoad(const char *Cmd)

{

}

int CmdLegicLoad(const char *Cmd)

{

- FILE *f = fopen(Cmd, "r");

- if(!f) {

- PrintAndLog("couldn't open '%s'", Cmd);

- return -1;

- }

- char line[80]; int offset = 0; unsigned int data[8];

- while(fgets(line, sizeof(line), f)) {

- int res = sscanf(line, "%x %x %x %x %x %x %x %x",

- &data[0], &data[1], &data[2], &data[3],

- &data[4], &data[5], &data[6], &data[7]);

- if(res != 8) {

- PrintAndLog("Error: could not read samples");

- fclose(f);

- return -1;

- }

- UsbCommand c={CMD_DOWNLOADED_SIM_SAMPLES_125K, {offset, 0, 0}};

- int j; for(j = 0; j < 8; j++) {

- c.d.asBytes[j] = data[j];

- }

- SendCommand(&c);

- WaitForResponse(CMD_ACK, NULL);

- offset += 8;

- }

- fclose(f);

- PrintAndLog("loaded %u samples", offset);

- return 0;

+ char filename[FILE_PATH_SIZE] = {0x00};

+ int len = 0;

+

+ if (param_getchar(Cmd, 0) == 'h' || param_getchar(Cmd, 0)== 0x00) {

+ PrintAndLog("It loads datasamples from the file `filename`");

+ PrintAndLog("Usage: hf legic load <file name>");

+ PrintAndLog(" sample: hf legic load filename");

+ return 0;

+ }

+

+ len = strlen(Cmd);

+ if (len > FILE_PATH_SIZE) {

+ PrintAndLog("Filepath too long (was %s bytes), max allowed is %s ", len, FILE_PATH_SIZE);

+ return 0;

+ }

+ memcpy(filename, Cmd, len);

+

+ FILE *f = fopen(filename, "r");

+ if (!f) {

+ PrintAndLog("couldn't open '%s'", Cmd);

+ return -1;

+ }

+ char line[80]; int offset = 0; unsigned int data[8];

+ while (fgets(line, sizeof(line), f)) {

+ int res = sscanf(line, "%x %x %x %x %x %x %x %x",

+ &data[0], &data[1], &data[2], &data[3],

+ &data[4], &data[5], &data[6], &data[7]);

+ if (res != 8) {

+ PrintAndLog("Error: could not read samples");

+ fclose(f);

+ return -1;

+ }

+ UsbCommand c={CMD_DOWNLOADED_SIM_SAMPLES_125K, {offset, 1, 0}};

+ int j; for(j = 0; j < 8; j++) {

+ c.d.asBytes[j] = data[j];

+ }

+ SendCommand(&c);

+ WaitForResponse(CMD_ACK, NULL);

+ offset += 8;

+ }

+ fclose(f);

+ PrintAndLog("loaded %u samples", offset);

+ return 0;

}

int CmdLegicSave(const char *Cmd)

{

}

int CmdLegicSave(const char *Cmd)

{

- int n;

- int requested = 1024;

- int offset = 0;

- char filename[1024];

- sscanf(Cmd, " %s %i %i", filename, &requested, &offset);

- if (offset % 4 != 0) {

- PrintAndLog("Offset must be a multiple of 4");

- return 0;

- }

- offset = offset/4;

-

- int delivered = 0;

-

- if (requested == 0) {

- n = 12;

- requested = 12;

- } else {

- n = requested/4;

- }

-

- FILE *f = fopen(filename, "w");

- if(!f) {

- PrintAndLog("couldn't open '%s'", Cmd+1);

- return -1;

- }

-

- for (int i = offset; i < n+offset; i += 12) {

- UsbCommand c = {CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K, {i, 0, 0}};

- SendCommand(&c);

- WaitForResponse(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K, NULL);

- for (int j = 0; j < 48; j += 8) {

- fprintf(f, "%02x %02x %02x %02x %02x %02x %02x %02x\n",

- sample_buf[j+0],

- sample_buf[j+1],

- sample_buf[j+2],

- sample_buf[j+3],

- sample_buf[j+4],

- sample_buf[j+5],

- sample_buf[j+6],

- sample_buf[j+7]

- );

- delivered += 8;

- if (delivered >= requested)

- break;

- }

- if (delivered >= requested)

- break;

- }

-

- fclose(f);

- PrintAndLog("saved %u samples", delivered);

- return 0;

+ int requested = 1024;

+ int offset = 0;

+ int delivered = 0;

+ char filename[FILE_PATH_SIZE];

+ uint8_t got[1024];

+

+ sscanf(Cmd, " %s %i %i", filename, &requested, &offset);

+

+ /* If no length given save entire legic read buffer */

+ /* round up to nearest 8 bytes so the saved data can be used with legicload */

+ if (requested == 0) {

+ requested = 1024;

+ }

+ if (requested % 8 != 0) {

+ int remainder = requested % 8;

+ requested = requested + 8 - remainder;

+ }

+ if (offset + requested > sizeof(got)) {

+ PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > 1024");

+ return 0;

+ }

+

+ FILE *f = fopen(filename, "w");

+ if (!f) {

+ PrintAndLog("couldn't open '%s'", Cmd+1);

+ return -1;

+ }

+

+ GetFromBigBuf(got, requested, offset, NULL, -1, false);

+

+ for (int j = 0; j < requested; j += 8) {

+ fprintf(f, "%02x %02x %02x %02x %02x %02x %02x %02x\n",

+ got[j+0],

+ got[j+1],

+ got[j+2],

+ got[j+3],

+ got[j+4],

+ got[j+5],

+ got[j+6],

+ got[j+7]

+ );

+ delivered += 8;

+ if (delivered >= requested)

+ break;

+ }

+

+ fclose(f);

+ PrintAndLog("saved %u samples", delivered);

+ return 0;

}

int CmdLegicRfSim(const char *Cmd)

{

UsbCommand c={CMD_SIMULATE_TAG_LEGIC_RF};

}

int CmdLegicRfSim(const char *Cmd)

{

UsbCommand c={CMD_SIMULATE_TAG_LEGIC_RF};

- c.arg[0] = 6;

- c.arg[1] = 3;

- c.arg[2] = 0;

- sscanf(Cmd, " %lli %lli %lli", &c.arg[0], &c.arg[1], &c.arg[2]);

+ c.arg[0] = 1;

+ sscanf(Cmd, " %" SCNi64, &c.arg[0]);

SendCommand(&c);

return 0;

}

int CmdLegicRfWrite(const char *Cmd)

{

SendCommand(&c);

return 0;

}

int CmdLegicRfWrite(const char *Cmd)

{

- UsbCommand c={CMD_WRITER_LEGIC_RF};

- int res = sscanf(Cmd, " 0x%"llx" 0x%"llx, &c.arg[0], &c.arg[1]);

- if(res != 2) {

+ UsbCommand c={CMD_WRITER_LEGIC_RF};

+ int res = sscanf(Cmd, " 0x%" SCNx64 " 0x%" SCNx64, &c.arg[0], &c.arg[1]);

+ if (res != 2) {

PrintAndLog("Please specify the offset and length as two hex strings");

- return -1;

- }

- SendCommand(&c);

- return 0;

+ return -1;

+ }

+ SendCommand(&c);

+ return 0;

}

int CmdLegicRfFill(const char *Cmd)

{

}

int CmdLegicRfFill(const char *Cmd)

{

- UsbCommand cmd ={CMD_WRITER_LEGIC_RF};

- int res = sscanf(Cmd, " 0x%llx 0x%llx 0x%llx", &cmd.arg[0], &cmd.arg[1], &cmd.arg[2]);

- if(res != 3) {

- PrintAndLog("Please specify the offset, length and value as two hex strings");

- return -1;

- }

-

- int i;

- UsbCommand c={CMD_DOWNLOADED_SIM_SAMPLES_125K, {0, 0, 0}};

- for(i = 0; i < 48; i++) {

- c.d.asBytes[i] = cmd.arg[2];

- }

- for(i = 0; i < 22; i++) {

- c.arg[0] = i*48;

- SendCommand(&c);

- WaitForResponse(CMD_ACK,NULL);

- }

- SendCommand(&cmd);

- return 0;

+ UsbCommand cmd ={CMD_WRITER_LEGIC_RF};

+ int res = sscanf(Cmd, " 0x%" SCNx64 " 0x%" SCNx64 " 0x%" SCNx64, &cmd.arg[0], &cmd.arg[1], &cmd.arg[2]);

+ if (res != 3) {

+ PrintAndLog("Please specify the offset, length and value as two hex strings");

+ return -1;

+ }

+

+ int i;

+ UsbCommand c={CMD_DOWNLOADED_SIM_SAMPLES_125K, {0, 1, 0}};

+ for (i = 0; i < 48; i++) {

+ c.d.asBytes[i] = cmd.arg[2];

+ }

+ for (i = 0; i < 22; i++) {

+ c.arg[0] = i*48;

+ SendCommand(&c);

+ WaitForResponse(CMD_ACK,NULL);

+ }

+ SendCommand(&cmd);

+ return 0;

}