#define MAX_LENGTH 1024
int usage_legic_calccrc(void){
- PrintAndLog("Calculates the legic crc8/crc16 on the input hexbytes.");
+ PrintAndLog("Calculates the legic crc8/crc16 on the given data.");
PrintAndLog("There must be an even number of hexsymbols as input.");
- PrintAndLog("Usage: hf legic crc [h] b <hexbytes> u <uidcrc> c <crc type>");
+ PrintAndLog("Usage: hf legic crc [h] d <data> u <uidcrc> c <8|16>");
PrintAndLog("Options:");
PrintAndLog(" h : this help");
- PrintAndLog(" b <hexbytes> : hex bytes");
+ PrintAndLog(" d <data> : (hex symbols) bytes to calculate crc over");
PrintAndLog(" u <uidcrc> : MCC hexbyte");
- PrintAndLog(" c <crc type> : 8|16 bit crc size");
+ PrintAndLog(" c <8|16> : Crc type");
PrintAndLog("");
PrintAndLog("Samples:");
PrintAndLog(" hf legic crc b deadbeef1122");
PrintAndLog(" hf legic crc b deadbeef1122 u 9A c 16");
return 0;
}
-int usage_legic_load(void){
- PrintAndLog("It loads datasamples from the file `filename` to device memory");
- PrintAndLog("Usage: hf legic load [h] <file name>");
- PrintAndLog("Options:");
- PrintAndLog(" h : this help");
- PrintAndLog(" <filename> : Name of file to load");
- PrintAndLog("");
- PrintAndLog("Samples:");
- PrintAndLog(" hf legic load filename");
- return 0;
-}
int usage_legic_rdmem(void){
PrintAndLog("Read data from a legic tag.");
PrintAndLog("Usage: hf legic rdmem [h] <offset> <length> <IV>");
PrintAndLog("Options:");
- PrintAndLog(" h : this help");
- PrintAndLog(" <offset> : offset in data array to start download from (hex)");
- PrintAndLog(" <length> : number of bytes to read (hex)");
- PrintAndLog(" <IV> : (optional) Initialization vector to use (hex, odd and 7bits)");
+ PrintAndLog(" h : this help");
+ PrintAndLog(" <offset> : (hex) offset in data array to start download from");
+ PrintAndLog(" <length> : (hex) number of bytes to read");
+ PrintAndLog(" <IV> : (hex) (optional) Initialization vector to use. Must be odd and 7bits max");
PrintAndLog("");
PrintAndLog("Samples:");
- PrintAndLog(" hf legic rdmem 0 21 - reads from byte[0] 21 bytes(system header)");
- PrintAndLog(" hf legic rdmem 0 4 55 - reads from byte[0] 4 bytes with IV 0x55");
- PrintAndLog(" hf legic rdmem 0 100 55 - reads 256bytes with IV 0x55");
+ PrintAndLog(" hf legic rdmem 0 16 - reads from byte[0] 0x16 bytes(system header)");
+ PrintAndLog(" hf legic rdmem 0 4 55 - reads from byte[0] 0x4 bytes with IV 0x55");
+ PrintAndLog(" hf legic rdmem 0 100 55 - reads 0x100 bytes with IV 0x55");
return 0;
}
int usage_legic_sim(void){
- PrintAndLog("Missing help text.");
+ PrintAndLog("Simulates a LEGIC Prime tag. MIM22, MIM256, MIM1024 types can be emulated");
+ PrintAndLog("Use eload/esave to upload a dump into emulator memory");
+ PrintAndLog("Usage: hf legic sim [h] <tagtype> <phase> <frame> <reqresp>");
+ PrintAndLog("Options:");
+ PrintAndLog(" h : this help");
+ PrintAndLog(" <tagtype> : 0 = MIM22");
+ PrintAndLog(" : 1 = MIM256 (default)");
+ PrintAndLog(" : 2 = MIM1024");
+ PrintAndLog(" <phase> : phase drift");
+ PrintAndLog(" <frame> : frame drift");
+ PrintAndLog(" <reqresp> : reqresp drift");
+ PrintAndLog("");
+ PrintAndLog("Samples:");
+ PrintAndLog(" hf legic sim");
+ PrintAndLog(" hf legic sim ");
return 0;
}
int usage_legic_write(void){
- PrintAndLog(" Write sample buffer to a legic tag. (use after load or read)");
+ PrintAndLog("Write data to a LEGIC Prime tag. It autodetects tagsize to make sure size");
PrintAndLog("Usage: hf legic write [h] o <offset> d <data (hex symbols)>");
PrintAndLog("Options:");
- PrintAndLog(" h : this help");
- PrintAndLog(" o <offset> : offset in data array to start writing");
+ PrintAndLog(" h : this help");
+ PrintAndLog(" o <offset> : (hex) offset in data array to start writing");
//PrintAndLog(" <IV> : (optional) Initialization vector to use (ODD and 7bits)");
- PrintAndLog(" d <data> : bytes to write (hex symbols)");
+ PrintAndLog(" d <data> : (hex symbols) bytes to write ");
PrintAndLog("");
PrintAndLog("Samples:");
PrintAndLog(" hf legic write o 10 d 11223344 - Write 0x11223344 starting from offset 0x10");
PrintAndLog("Read UID and type information from a legic tag.");
PrintAndLog("Usage: hf legic reader [h]");
PrintAndLog("Options:");
- PrintAndLog(" h : this help");
+ PrintAndLog(" h : this help");
PrintAndLog("");
PrintAndLog("Samples:");
PrintAndLog(" hf legic reader");
PrintAndLog("Shows systemarea, user areas etc");
PrintAndLog("Usage: hf legic info [h]");
PrintAndLog("Options:");
- PrintAndLog(" h : this help");
+ PrintAndLog(" h : this help");
PrintAndLog("");
PrintAndLog("Samples:");
PrintAndLog(" hf legic info");
return 0;
}
int usage_legic_dump(void){
- PrintAndLog("Reads all pages from LEGIC MIM22, MIM256, MIM1024");
+ PrintAndLog("Reads all pages from LEGIC Prime MIM22, MIM256, MIM1024");
PrintAndLog("and saves binary dump into the file `filename.bin` or `cardUID.bin`");
PrintAndLog("It autodetects card type.\n");
PrintAndLog("Usage: hf legic dump [h] o <filename w/o .bin>");
PrintAndLog("Options:");
- PrintAndLog(" h : this help");
- PrintAndLog(" n <FN> : filename w/o .bin to save the dump as");
+ PrintAndLog(" h : this help");
+ PrintAndLog(" o <filename> : filename w/o '.bin' to dump bytes");
PrintAndLog("");
PrintAndLog("Samples:");
PrintAndLog(" hf legic dump");
PrintAndLog(" hf legic dump o myfile");
return 0;
}
+int usage_legic_restore(void){
+ PrintAndLog("Reads binary file and it autodetects card type and verifies that the file has the same size");
+ PrintAndLog("Then write the data back to card. All bytes except the first 7bytes [UID(4) MCC(1) DCF(2)]\n");
+ PrintAndLog("Usage: hf legic restore [h] i <filename w/o .bin>");
+ PrintAndLog("Options:");
+ PrintAndLog(" h : this help");
+ PrintAndLog(" i <filename> : filename w/o '.bin' to restore bytes on to card from");
+ PrintAndLog("");
+ PrintAndLog("Samples:");
+ PrintAndLog(" hf legic restore i myfile");
+ return 0;
+}
int usage_legic_eload(void){
PrintAndLog("It loads binary dump from the file `filename.bin`");
PrintAndLog("Usage: hf legic eload [h] [card memory] <file name w/o `.bin`>");
PrintAndLog("Options:");
- PrintAndLog(" h : this help");
- PrintAndLog(" [card memory] : 0 = MIM22");
- PrintAndLog(" : 1 = MIM256 (default)");
- PrintAndLog(" : 2 = MIM1024");
- PrintAndLog(" <filename> : filename w/o .bin to load");
+ PrintAndLog(" h : this help");
+ PrintAndLog(" [card memory] : 0 = MIM22");
+ PrintAndLog(" : 1 = MIM256 (default)");
+ PrintAndLog(" : 2 = MIM1024");
+ PrintAndLog(" <filename> : filename w/o .bin to load");
PrintAndLog("");
PrintAndLog("Samples:");
- PrintAndLog(" hf legic eload filename");
- PrintAndLog(" hf legic eload 2 filename");
+ PrintAndLog(" hf legic eload 2 myfile");
return 0;
}
int usage_legic_esave(void){
PrintAndLog("It saves binary dump into the file `filename.bin` or `cardID.bin`");
PrintAndLog(" Usage: hf legic esave [h] [card memory] [file name w/o `.bin`]");
PrintAndLog("Options:");
- PrintAndLog(" h : this help");
- PrintAndLog(" [card memory] : 0 = MIM22");
- PrintAndLog(" : 1 = MIM256 (default)");
- PrintAndLog(" : 2 = MIM1024");
- PrintAndLog(" <filename> : filename w/o .bin to load");
+ PrintAndLog(" h : this help");
+ PrintAndLog(" [card memory] : 0 = MIM22");
+ PrintAndLog(" : 1 = MIM256 (default)");
+ PrintAndLog(" : 2 = MIM1024");
+ PrintAndLog(" <filename> : filename w/o .bin to load");
PrintAndLog("");
PrintAndLog("Samples:");
- PrintAndLog(" hf legic esave ");
- PrintAndLog(" hf legic esave 2");
- PrintAndLog(" hf legic esave 2 filename");
+ PrintAndLog(" hf legic esave 2 myfile");
return 0;
}
data[6]
);
- } else if(dcf > 60000) { // Master token?
+ } else if (dcf > 60000) { // Master token?
int fl = 0;
uint32_t offset = 0, len = 0, IV = 1;
sscanf(Cmd, "%x %x %x", &offset, &len, &IV);
+ // tagtype
+ legic_card_select_t card;
+ if (legic_get_type(&card)) {
+ PrintAndLog("Failed to identify tagtype");
+ return 1;
+ }
+
+ legic_print_type(card.cardsize, 0);
+
// OUT-OF-BOUNDS check
- if ( len + offset > MAX_LENGTH ) {
- len = MAX_LENGTH - offset;
- PrintAndLog("Out-of-bound, shorten len to %d (0x%02X)", len, len);
+ // UID 4 bytes can't be written to.
+ if ( len + offset >= card.cardsize ) {
+ len = card.cardsize - offset;
+ PrintAndLog("Out-of-bounds, Cardsize = %d, Trunc offset+len = %d", card.cardsize, len + offset);
}
legic_chk_iv(&IV);
return 0;
}
-// load, filename (ascii hex textfile)
-// uploads it to device mem
-int CmdLegicLoad(const char *Cmd) {
-
-// iceman: potential bug, where all filepaths or filename which starts with H or h will print the helptext :)
- char cmdp = param_getchar(Cmd, 0);
- if ( cmdp == 'H' || cmdp == 'h' || cmdp == 0x00) return usage_legic_load();
-
- char filename[FILE_PATH_SIZE] = {0x00};
- int 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;
- uint8_t data[USB_CMD_DATA_SIZE] = {0x00};
- int index = 0;
- int totalbytes = 0;
- while ( fgets(line, sizeof(line), f) ) {
- int res = sscanf(line, "%x %x %x %x %x %x %x %x",
- (unsigned int *)&data[index],
- (unsigned int *)&data[index + 1],
- (unsigned int *)&data[index + 2],
- (unsigned int *)&data[index + 3],
- (unsigned int *)&data[index + 4],
- (unsigned int *)&data[index + 5],
- (unsigned int *)&data[index + 6],
- (unsigned int *)&data[index + 7]);
-
- if(res != 8) {
- PrintAndLog("Error: could not read samples");
- fclose(f);
- return -1;
- }
- index += res;
-
- if ( index == USB_CMD_DATA_SIZE ){
- UsbCommand c = { CMD_DOWNLOADED_SIM_SAMPLES_125K, {offset, 0, 0}};
- memcpy(c.d.asBytes, data, sizeof(data));
- clearCommandBuffer();
- SendCommand(&c);
- if ( !WaitForResponseTimeout(CMD_ACK, NULL, 1500)){
- PrintAndLog("Command execute timeout");
- fclose(f);
- return 1;
- }
- offset += index;
- totalbytes += index;
- index = 0;
- }
- }
- fclose(f);
-
- // left over bytes?
- if ( index != 0 ) {
- UsbCommand c = { CMD_DOWNLOADED_SIM_SAMPLES_125K, {offset, 0, 0}};
- memcpy(c.d.asBytes, data, 8);
- clearCommandBuffer();
- SendCommand(&c);
- if ( !WaitForResponseTimeout(CMD_ACK, NULL, 1500)){
- PrintAndLog("Command execute timeout");
- return 1;
- }
- totalbytes += index;
- }
-
- PrintAndLog("loaded %u samples", totalbytes);
- return 0;
-}
-
-// Save, filename, num of bytes, starting offset. (in decimal)
-// ie: "hf legic save nnn.txt 100 0 (saves the first 100bytes)
-// (ascii hex textfile)
-int CmdLegicSave(const char *Cmd) {
- int requested = 1024;
- int offset = 0;
- int delivered = 0;
- char filename[FILE_PATH_SIZE] = {0x00};
- uint8_t got[1024] = {0x00};
-
- memset(filename, 0, FILE_PATH_SIZE);
-
- 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;
- }
-
- GetFromBigBuf(got, requested, offset);
- if ( !WaitForResponseTimeout(CMD_ACK, NULL, 2000)){
- PrintAndLog("Command execute timeout");
- return 1;
- }
-
- FILE *f = fopen(filename, "w");
- if(!f) {
- PrintAndLog("couldn't open '%s'", Cmd+1);
- return -1;
- }
-
- 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;
-}
-
-//TODO: write a help text (iceman)
// should say which tagtype
// should load a tag to device mem.
+// int phase, int frame, int reqresp
int CmdLegicRfSim(const char *Cmd) {
UsbCommand c = {CMD_SIMULATE_TAG_LEGIC_RF, {6,3,0}};
sscanf(Cmd, " %"lli" %"lli" %"lli, &c.arg[0], &c.arg[1], &c.arg[2]);
break;
case 'o':
case 'O':
- offset = param_get32ex(Cmd, cmdp+1, 4, 10);
+ offset = param_get32ex(Cmd, cmdp+1, 4, 16);
cmdp += 2;
break;
case 'h':
legic_print_type(card.cardsize, 0);
- // OUT-OF-BOUNDS check
+ // OUT-OF-BOUNDS checks
// UID 4 bytes can't be written to.
+ if ( offset < 4 ) {
+ PrintAndLog("Out-of-bounds, UID 4bytes can't be written to. Offset = %d", offset);
+ return -2;
+ }
+
if ( len + offset + 4 >= card.cardsize ) {
PrintAndLog("Out-of-bounds, Cardsize = %d, [offset+len = %d ]", card.cardsize, len + offset + 4);
return -2;
}
/*
-int CmdLegicRfRawWrite(const char *Cmd) {
PrintAndLog("############# DANGER !! #############");
PrintAndLog("# changing the DCF is irreversible #");
PrintAndLog("#####################################");
// if (scanf(" %c", &answer) > 0 && (answer == 'y' || answer == 'Y')) {
// return 0;
// }
- return 0;
-}
*/
int CmdLegicCalcCrc(const char *Cmd){
memcpy(c.d.asBytes, src+i, len);
clearCommandBuffer();
SendCommand(&c);
- PrintAndLog("ICE: offset %d | len %d", i, len);
}
}
return 0;
}
+int CmdLegicRestore(const char *Cmd){
+
+ FILE *f;
+ char filename[FILE_PATH_SIZE] = {0x00};
+ char *fnameptr = filename;
+ size_t fileNlen = 0;
+ bool errors = false;
+ uint16_t numofbytes;
+ uint8_t cmdp = 0;
+
+ memset(filename, 0, sizeof(filename));
+
+ while(param_getchar(Cmd, cmdp) != 0x00) {
+ switch(param_getchar(Cmd, cmdp)) {
+ case 'h':
+ case 'H':
+ errors = true;
+ break;
+ case 'i':
+ case 'I':
+ fileNlen = param_getstr(Cmd, cmdp+1, filename);
+ if (!fileNlen)
+ errors = true;
+ if (fileNlen > FILE_PATH_SIZE-5)
+ fileNlen = FILE_PATH_SIZE-5;
+ cmdp += 2;
+ break;
+ default:
+ PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+ errors = true;
+ break;
+ }
+ if(errors) break;
+ }
+
+ //Validations
+ if(errors) return usage_legic_restore();
+
+ // tagtype
+ legic_card_select_t card;
+ if (legic_get_type(&card)) {
+ PrintAndLog("Failed to identify tagtype");
+ return 1;
+ }
+ numofbytes = card.cardsize;
+
+ // set up buffer
+ uint8_t *data = malloc(numofbytes);
+ if (!data) {
+ PrintAndLog("Fail, cannot allocate memory");
+ return 3;
+ }
+ memset(data, 0, numofbytes);
+
+ legic_print_type(numofbytes, 0);
+
+ // set up file
+ fnameptr += fileNlen;
+ sprintf(fnameptr, ".bin");
+
+ PrintAndLog("Reading binary file...");
+
+ if ((f = fopen(filename,"rb")) == NULL) {
+ PrintAndLog("File %s not found or locked", filename);
+ return 2;
+ }
+
+ // verify size of dumpfile is the same as card.
+
+ // load file
+ size_t bytes_read = fread(data, 1, numofbytes, f);
+ if ( bytes_read == 0){
+ PrintAndLog("File reading error");
+ free(data);
+ fclose(f);
+ return 2;
+ }
+ fclose(f);
+
+ PrintAndLog("Restoring %s to card", filename);
+
+ //loop writing :)
+
+ //endloop
+
+ free(data);
+ PrintAndLog("\nLoaded %d bytes from file: %s to emulator memory", numofbytes, filename);
+ return 0;
+}
+
int CmdLegicELoad(const char *Cmd) {
FILE * f;
char filename[FILE_PATH_SIZE];
if (len > FILE_PATH_SIZE - 5)
len = FILE_PATH_SIZE - 5;
fnameptr += len;
- sprintf(fnameptr, ".bin");
+ sprintf(fnameptr, ".bin");
// open file
if ((f = fopen(filename,"rb")) == NULL) {
PrintAndLog("\nSaved %d bytes from emulator memory to file: %s", numofbytes, filename);
return 0;
}
-
+
+int CmdLegicList(const char *Cmd) {
+ CmdHFList("legic");
+ return 0;
+}
+
static command_t CommandTable[] = {
{"help", CmdHelp, 1, "This help"},
- {"reader", CmdLegicReader, 1, "LEGIC Prime Reader UID and Type tag info"},
+ {"reader", CmdLegicReader, 1, "LEGIC Prime Reader UID and tag info"},
{"info", CmdLegicInfo, 0, "Display deobfuscated and decoded LEGIC Prime tag data"},
- {"dump", CmdLegicDump, 0, "Dump LEGIC Prime card to binary file"},
- {"rdmem", CmdLegicRdmem, 0, "[offset][length] <iv> -- 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, "Write data to tag"},
- {"crc", CmdLegicCalcCrc, 1, "Calculate Legic CRC over given hexbytes"},
+ {"dump", CmdLegicDump, 0, "Dump LEGIC Prime tag to binary file"},
+ {"restore", CmdLegicRestore, 0, "Restore a dump onto a LEGIC Prime tag"},
+ {"rdmem", CmdLegicRdmem, 0, "Read bytes from a LEGIC Prime tag"},
+ {"sim", CmdLegicRfSim, 0, "Start tag simulator"},
+ {"write", CmdLegicRfWrite, 0, "Write data to a LEGIC Prime tag"},
+ {"crc", CmdLegicCalcCrc, 1, "Calculate Legic CRC over given bytes"},
{"eload", CmdLegicELoad, 1, "Load binary dump to emulator memory"},
{"esave", CmdLegicESave, 1, "Save emulator memory to binary file"},
+ {"list", CmdLegicList, 1, "[Deprecated] List LEGIC history"},
{NULL, NULL, 0, NULL}
};
projects / proxmark3-svn / commitdiff