int usage_lf_em410x_sim(void) {
PrintAndLog("Simulating EM410x tag");
PrintAndLog("");
- PrintAndLog("Usage: lf em4x em410xsim [h] <uid> <clock>");
+ PrintAndLog("Usage: lf em 410xsim [h] <uid> <clock>");
PrintAndLog("Options:");
PrintAndLog(" h - this help");
PrintAndLog(" uid - uid (10 HEX symbols)");
PrintAndLog(" clock - clock (32|64) (optional)");
PrintAndLog("samples:");
- PrintAndLog(" lf em4x em410xsim 0F0368568B");
- PrintAndLog(" lf em4x em410xsim 0F0368568B 32");
+ PrintAndLog(" lf em 410xsim 0F0368568B");
+ PrintAndLog(" lf em 410xsim 0F0368568B 32");
return 0;
}
}
CmdLFRead("s");
- getSamples("8201",true); //capture enough to get 2 complete preambles (4096*2+9)
+ getSamples("6144",true);
} while (!CmdEM410xRead(""));
return 0;
{
// loops if the captured ID was in XL-format.
CmdEM410xWatch(Cmd);
- PrintAndLog("# Replaying captured ID: %llu", g_em410xid);
+ PrintAndLog("# Replaying captured ID: %" PRIu64 , g_em410xid);
CmdLFaskSim("");
return 0;
}
bool EM_EndParityTest(uint8_t *BitStream, size_t size, uint8_t rows, uint8_t cols, uint8_t pType)
{
- if (rows*cols>size) return false;
+ if (rows*cols>size) return FALSE;
uint8_t colP=0;
//assume last col is a parity and do not test
for (uint8_t colNum = 0; colNum < cols-1; colNum++) {
for (uint8_t rowNum = 0; rowNum < rows; rowNum++) {
colP ^= BitStream[(rowNum*cols)+colNum];
}
- if (colP != pType) return false;
+ if (colP != pType) return FALSE;
}
- return true;
+ return TRUE;
}
bool EM_ByteParityTest(uint8_t *BitStream, size_t size, uint8_t rows, uint8_t cols, uint8_t pType)
{
- if (rows*cols>size) return false;
+ if (rows*cols>size) return FALSE;
uint8_t rowP=0;
//assume last row is a parity row and do not test
for (uint8_t rowNum = 0; rowNum < rows-1; rowNum++) {
for (uint8_t colNum = 0; colNum < cols; colNum++) {
rowP ^= BitStream[(rowNum*cols)+colNum];
}
- if (rowP != pType) return false;
+ if (rowP != pType) return FALSE;
+ }
+ return TRUE;
+}
+
+// EM word parity test.
+// 9*5 = 45 bits in total
+// 012345678|r1
+// 012345678|r2
+// 012345678|r3
+// 012345678|r4
+// ------------
+//c012345678| 0
+// |- must be zero
+
+bool EMwordparitytest(uint8_t *bits){
+
+ // last row/col parity must be 0
+ if (bits[44] != 0 ) return FALSE;
+
+ // col parity check
+ uint8_t c1 = bytebits_to_byte(bits, 8) ^ bytebits_to_byte(bits+9, 8) ^ bytebits_to_byte(bits+18, 8) ^ bytebits_to_byte(bits+27, 8);
+ uint8_t c2 = bytebits_to_byte(bits+36, 8);
+ if ( c1 != c2 ) return FALSE;
+
+ // row parity check
+ uint8_t rowP = 0;
+ for ( uint8_t i = 0; i < 36; ++i ) {
+
+ rowP ^= bits[i];
+ if ( i>0 && (i % 9) == 0) {
+
+ if ( rowP != EVEN )
+ return FALSE;
+
+ rowP = 0;
+ }
}
- return true;
+ // all checks ok.
+ return TRUE;
}
if ( ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x50_read();
return EM4x50Read(Cmd, true);
}
-
int CmdEM4x50Write(const char *Cmd){
uint8_t ctmp = param_getchar(Cmd, 0);
if ( ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x50_write();
}
#define EM_PREAMBLE_LEN 6
-// download samples from device
-// and copy them to Graphbuffer
+// download samples from device and copy to Graphbuffer
bool downloadSamplesEM(){
// 8 bit preamble + 32 bit word response (max clock (128) * 40bits = 5120 samples)
setGraphBuf(got, sizeof(got));
return TRUE;
}
-//search for given preamble in given BitStream and return success=1 or fail=0 and startIndex
+
+// em_demod
bool doPreambleSearch(size_t *startIdx){
// sanity check
if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305 demodbuffer too small");
return FALSE;
}
-
- // skip first two 0 bits as they might have been missed in the demod
- uint8_t preamble[EM_PREAMBLE_LEN] = {0,0,1,0,1,0};
-
- // set size to 15 to only test first 4 positions for the preamble
- size_t size = (15 > DemodBufferLen) ? DemodBufferLen : 15;
+
+ // set size to 20 to only test first 14 positions for the preamble
+ size_t size = (20 > DemodBufferLen) ? DemodBufferLen : 20;
*startIdx = 0;
- uint8_t found = 0;
-
- // em only sends preamble once, so look for it once in the first x bits
- for (int idx = 0; idx < size - EM_PREAMBLE_LEN; idx++){
- if (memcmp(DemodBuffer+idx, preamble, EM_PREAMBLE_LEN) == 0){
- //first index found
- *startIdx = idx;
- found = 1;
- break;
- }
- }
+ // skip first two 0 bits as they might have been missed in the demod
+ uint8_t preamble[EM_PREAMBLE_LEN] = {0,0,1,0,1,0};
- if ( !found) {
+ if ( !preambleSearchEx(DemodBuffer, preamble, EM_PREAMBLE_LEN, &size, startIdx, TRUE)) {
if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305 preamble not found :: %d", *startIdx);
return FALSE;
}
bool setDemodBufferEM(uint32_t *word, size_t idx){
//test for even parity bits.
- size_t size = removeParity(DemodBuffer, idx + EM_PREAMBLE_LEN, 9, 0, 44);
- if (!size) {
- if (g_debugMode) PrintAndLog("DEBUG: Error -EM Parity not detected");
+ uint8_t parity[45] = {0};
+ memcpy( parity, DemodBuffer, 45);
+ if (!EMwordparitytest(parity) ){
+ PrintAndLog("DEBUG: Error - EM Parity tests failed");
return FALSE;
}
-
- //todo test last 8 bits for even parity || (xor)
- setDemodBuf(DemodBuffer, 40, 0);
-
+
+ // test for even parity bits and remove them. (leave out the end row of parities so 36 bits)
+ if (!removeParity(DemodBuffer, idx + EM_PREAMBLE_LEN, 9, 0, 36)) {
+ if (g_debugMode) PrintAndLog("DEBUG: Error - EM, failed removing parity");
+ return FALSE;
+ }
+ setDemodBuf(DemodBuffer, 32, 0);
*word = bytebits_to_byteLSBF(DemodBuffer, 32);
-
- uint8_t lo = (uint8_t) bytebits_to_byteLSBF(DemodBuffer , 8);
- uint8_t lo2 = (uint8_t) bytebits_to_byteLSBF(DemodBuffer + 8, 8);
- uint8_t hi = (uint8_t) bytebits_to_byteLSBF(DemodBuffer + 16, 8);
- uint8_t hi2 = (uint8_t) bytebits_to_byteLSBF(DemodBuffer + 24, 8);
- uint8_t cs = (uint8_t) bytebits_to_byteLSBF(DemodBuffer + 32, 8);
- uint8_t cs2 = lo ^ lo2 ^ hi ^ hi2;
- if (g_debugMode) PrintAndLog("EM4x05/4x69 : %08X CS: %02X %s"
- , *word
- , cs
- , (cs2==cs) ? "Passed" : "Failed"
- );
-
- return (cs2==cs);
+ return TRUE;
}
// FSK, PSK, ASK/MANCHESTER, ASK/BIPHASE, ASK/DIPHASE
PrintAndLog(" lf em 4x05write 1 deadc0de 11223344");
return 0;
}
+int usage_lf_em4x05_info(void) {
+ PrintAndLog("Tag information EM4205/4305/4469//4569 tags. Tag must be on antenna.");
+ PrintAndLog("");
+ PrintAndLog("Usage: lf em 4x05info [h] <pwd>");
+ PrintAndLog("Options:");
+ PrintAndLog(" h - this help");
+ PrintAndLog(" pwd - password (hex) (optional)");
+ PrintAndLog("samples:");
+ PrintAndLog(" lf em 4x05info");
+ PrintAndLog(" lf em 4x05info deadc0de");
+ return 0;
+}
int CmdEM4x05Dump(const char *Cmd) {
uint8_t addr = 0;
- uint32_t pwd;
+ uint32_t pwd = 0;
bool usePwd = false;
uint8_t ctmp = param_getchar(Cmd, 0);
if ( ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x05_dump();
usePwd = true;
int success = 1;
+ PrintAndLog("Addr | data | ascii");
+ PrintAndLog("-----+--------+------");
for (; addr < 16; addr++) {
if (addr == 2) {
if (usePwd) {
- PrintAndLog("PWD Address %02u | %08X", addr, pwd);
+ PrintAndLog(" %02u | %08X", addr, pwd);
} else {
- PrintAndLog("PWD Address 02 | cannot read");
+ PrintAndLog(" 02 | cannot read");
}
} else {
//success &= EM4x05Read(addr, pwd, usePwd);
if (!downloadSamplesEM())
return -1;
- //todo: check response for 00001010 then write data for write confirmation!
-
+
//attempt demod:
//need 0 bits demoded (after preamble) to verify write cmd
uint32_t dummy = 0;
int isOk = demodEM4x05resp(&dummy);
if (isOk)
PrintAndLog("Write Verified");
-
+ else
+ PrintAndLog("Write could not be verified");
return isOk;
}
+void printEM4x05config(uint32_t wordData) {
+ uint16_t datarate = (((wordData & 0x3F)+1)*2);
+ uint8_t encoder = ((wordData >> 6) & 0xF);
+ char enc[14];
+ memset(enc,0,sizeof(enc));
+
+ uint8_t PSKcf = (wordData >> 10) & 0x3;
+ char cf[10];
+ memset(cf,0,sizeof(cf));
+ uint8_t delay = (wordData >> 12) & 0x3;
+ char cdelay[33];
+ memset(cdelay,0,sizeof(cdelay));
+ uint8_t LWR = (wordData >> 14) & 0xF; //last word read
+
+ switch (encoder) {
+ case 0: snprintf(enc,sizeof(enc),"NRZ"); break;
+ case 1: snprintf(enc,sizeof(enc),"Manchester"); break;
+ case 2: snprintf(enc,sizeof(enc),"Biphase"); break;
+ case 3: snprintf(enc,sizeof(enc),"Miller"); break;
+ case 4: snprintf(enc,sizeof(enc),"PSK1"); break;
+ case 5: snprintf(enc,sizeof(enc),"PSK2"); break;
+ case 6: snprintf(enc,sizeof(enc),"PSK3"); break;
+ case 7: snprintf(enc,sizeof(enc),"Unknown"); break;
+ case 8: snprintf(enc,sizeof(enc),"FSK1"); break;
+ case 9: snprintf(enc,sizeof(enc),"FSK2"); break;
+ default: snprintf(enc,sizeof(enc),"Unknown"); break;
+ }
+
+ switch (PSKcf) {
+ case 0: snprintf(cf,sizeof(cf),"RF/2"); break;
+ case 1: snprintf(cf,sizeof(cf),"RF/8"); break;
+ case 2: snprintf(cf,sizeof(cf),"RF/4"); break;
+ case 3: snprintf(cf,sizeof(cf),"unknown"); break;
+ }
+
+ switch (delay) {
+ case 0: snprintf(cdelay, sizeof(cdelay),"no delay"); break;
+ case 1: snprintf(cdelay, sizeof(cdelay),"BP/8 or 1/8th bit period delay"); break;
+ case 2: snprintf(cdelay, sizeof(cdelay),"BP/4 or 1/4th bit period delay"); break;
+ case 3: snprintf(cdelay, sizeof(cdelay),"no delay"); break;
+ }
+ PrintAndLog("ConfigWord: %08X (Word 4)\n", wordData);
+ PrintAndLog("Config Breakdown:", wordData);
+ PrintAndLog(" Data Rate: %02u | RF/%u", wordData & 0x3F, datarate);
+ PrintAndLog(" Encoder: %u | %s", encoder, enc);
+ PrintAndLog(" PSK CF: %u | %s", PSKcf, cf);
+ PrintAndLog(" Delay: %u | %s", delay, cdelay);
+ PrintAndLog(" LastWordR: %02u | Address of last word for default read", LWR);
+ PrintAndLog(" ReadLogin: %u | Read Login is %s", (wordData & 0x40000)>>18, (wordData & 0x40000) ? "Required" : "Not Required");
+ PrintAndLog(" ReadHKL: %u | Read Housekeeping Words Login is %s", (wordData & 0x80000)>>19, (wordData & 0x80000) ? "Required" : "Not Required");
+ PrintAndLog("WriteLogin: %u | Write Login is %s", (wordData & 0x100000)>>20, (wordData & 0x100000) ? "Required" : "Not Required");
+ PrintAndLog(" WriteHKL: %u | Write Housekeeping Words Login is %s", (wordData & 0x200000)>>21, (wordData & 0x200000) ? "Required" : "Not Required");
+ PrintAndLog(" R.A.W.: %u | Read After Write is %s", (wordData & 0x400000)>>22, (wordData & 0x400000) ? "On" : "Off");
+ PrintAndLog(" Disable: %u | Disable Command is %s", (wordData & 0x800000)>>23, (wordData & 0x800000) ? "Accepted" : "Not Accepted");
+ PrintAndLog(" R.T.F.: %u | Reader Talk First is %s", (wordData & 0x1000000)>>24, (wordData & 0x1000000) ? "Enabled" : "Disabled");
+ PrintAndLog(" Pigeon: %u | Pigeon Mode is %s\n", (wordData & 0x4000000)>>26, (wordData & 0x4000000) ? "Enabled" : "Disabled");
+}
+
+void printEM4x05info(uint8_t chipType, uint8_t cap, uint16_t custCode, uint32_t serial) {
+ switch (chipType) {
+ case 9: PrintAndLog("\n Chip Type: %u | EM4305", chipType); break;
+ case 4: PrintAndLog(" Chip Type: %u | Unknown", chipType); break;
+ case 2: PrintAndLog(" Chip Type: %u | EM4469", chipType); break;
+ //add more here when known
+ default: PrintAndLog(" Chip Type: %u Unknown", chipType); break;
+ }
+
+ switch (cap) {
+ case 3: PrintAndLog(" Cap Type: %u | 330pF",cap); break;
+ case 2: PrintAndLog(" Cap Type: %u | %spF",cap, (chipType==2)? "75":"210"); break;
+ case 1: PrintAndLog(" Cap Type: %u | 250pF",cap); break;
+ case 0: PrintAndLog(" Cap Type: %u | no resonant capacitor",cap); break;
+ default: PrintAndLog(" Cap Type: %u | unknown",cap); break;
+ }
+
+ PrintAndLog(" Cust Code: %03u | %s", custCode, (custCode == 0x200) ? "Default": "Unknown");
+ if (serial != 0) {
+ PrintAndLog("\n Serial #: %08X\n", serial);
+ }
+}
+
+void printEM4x05ProtectionBits(uint32_t wordData) {
+ for (uint8_t i = 0; i < 15; i++) {
+ PrintAndLog(" Word: %02u | %s", i, (((1 << i) & wordData ) || i < 2) ? "Is Write Locked" : "Is Not Write Locked");
+ if (i==14) {
+ PrintAndLog(" Word: %02u | %s", i+1, (((1 << i) & wordData ) || i < 2) ? "Is Write Locked" : "Is Not Write Locked");
+ }
+ }
+}
+
+//quick test for EM4x05/EM4x69 tag
+bool EM4x05Block0Test(uint32_t *wordData) {
+// return (EM4x05ReadWord_ext(0,0,false,wordData) == 1);
+ return false;
+}
+
+int CmdEM4x05Info(const char *Cmd) {
+ /*
+ uint32_t pwd;
+ uint32_t wordData = 0;
+ bool usePwd = false;
+ uint8_t ctmp = param_getchar(Cmd, 0);
+ if ( ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x05_info();
+
+ // for now use default input of 1 as invalid (unlikely 1 will be a valid password...)
+ pwd = param_get32ex(Cmd, 0, 1, 16);
+
+ if ( pwd != 1 )
+ usePwd = true;
+
+ // read word 0 (chip info)
+ // block 0 can be read even without a password.
+ if ( !EM4x05Block0Test(&wordData) )
+ return -1;
+
+ uint8_t chipType = (wordData >> 1) & 0xF;
+ uint8_t cap = (wordData >> 5) & 3;
+ uint16_t custCode = (wordData >> 9) & 0x3FF;
+
+ // read word 1 (serial #) doesn't need pwd
+ wordData = 0;
+ if (EM4x05ReadWord_ext(1, 0, false, &wordData) != 1) {
+ //failed, but continue anyway...
+ }
+ printEM4x05info(chipType, cap, custCode, wordData);
+
+ // read word 4 (config block)
+ // needs password if one is set
+ wordData = 0;
+ if ( EM4x05ReadWord_ext(4, pwd, usePwd, &wordData) != 1 )
+ return 0;
+
+ printEM4x05config(wordData);
+
+ // read word 14 and 15 to see which is being used for the protection bits
+ wordData = 0;
+ if ( EM4x05ReadWord_ext(14, pwd, usePwd, &wordData) != 1 ) {
+ return 0;
+ }
+ // if status bit says this is not the used protection word
+ if (!(wordData & 0x8000)) {
+ if ( EM4x05ReadWord_ext(15, pwd, usePwd, &wordData) != 1 ) {
+ return 0;
+ }
+ }
+ if (!(wordData & 0x8000)) {
+ //something went wrong
+ return 0;
+ }
+ printEM4x05ProtectionBits(wordData);
+
+ */
+ return 1;
+}
+
static command_t CommandTable[] = {
{"help", CmdHelp, 1, "This help"},
{"410xdemod", CmdEMdemodASK, 0, "[findone] -- Extract ID from EM410x tag (option 0 for continuous loop, 1 for only 1 tag)"},
{"410xread", CmdEM410xRead, 1, "[clock rate] -- Extract ID from EM410x tag in GraphBuffer"},
- {"410xsim", CmdEM410xSim, 0, "<UID> -- Simulate EM410x tag"},
+ {"410xsim", CmdEM410xSim, 0, "simulate EM410x tag"},
{"410xwatch", CmdEM410xWatch, 0, "['h'] -- Watches for EM410x 125/134 kHz tags (option 'h' for 134)"},
{"410xspoof", CmdEM410xWatchnSpoof, 0, "['h'] --- Watches for EM410x 125/134 kHz tags, and replays them. (option 'h' for 134)" },
{"410xwrite", CmdEM410xWrite, 0, "<UID> <'0' T5555> <'1' T55x7> [clock rate] -- Write EM410x UID to T5555(Q5) or T55x7 tag, optionally setting clock rate"},
+ {"4x05dump", CmdEM4x05Dump, 0, "dump EM4205/4305 tag"},
+ {"4x05info", CmdEM4x05Info, 0, "tag information EM4x05/EM4x69"},
{"4x05read", CmdEM4x05Read, 0, "read word data from EM4205/4305"},
{"4x05write", CmdEM4x05Write, 0, "write word data to EM4205/4305"},
- {"4x05dump", CmdEM4x05Dump, 0, "dump EM4205/4305 tag"},
{"4x50read", CmdEM4x50Read, 0, "read word data from EM4x50"},
{"4x50write", CmdEM4x50Write, 0, "write word data to EM4x50"},
{"4x50dump", CmdEM4x50Dump, 0, "dump EM4x50 tag"},
projects / proxmark3-svn / blobdiff