+//////////////// 4205 / 4305 commands
+int usage_lf_em4x05_dump(void) {
+ PrintAndLog("Dump EM4x05/EM4x69. Tag must be on antenna. ");
+ PrintAndLog("");
+ PrintAndLog("Usage: lf em 4x05dump [h] <pwd>");
+ PrintAndLog("Options:");
+ PrintAndLog(" h - this help");
+ PrintAndLog(" pwd - password (hex) (optional)");
+ PrintAndLog("samples:");
+ PrintAndLog(" lf em 4x05dump");
+ PrintAndLog(" lf em 4x05dump 11223344");
+ return 0;
+}
+int usage_lf_em4x05_read(void) {
+ PrintAndLog("Read EM4x05/EM4x69. Tag must be on antenna. ");
+ PrintAndLog("");
+ PrintAndLog("Usage: lf em 4x05read [h] <address> <pwd>");
+ PrintAndLog("Options:");
+ PrintAndLog(" h - this help");
+ PrintAndLog(" address - memory address to read. (0-15)");
+ PrintAndLog(" pwd - password (hex) (optional)");
+ PrintAndLog("samples:");
+ PrintAndLog(" lf em 4x05read 1");
+ PrintAndLog(" lf em 4x05read 1 11223344");
+ return 0;
+}
+int usage_lf_em4x05_write(void) {
+ PrintAndLog("Write EM4x05/4x69. Tag must be on antenna. ");
+ PrintAndLog("");
+ PrintAndLog("Usage: lf em 4x05write [h] <address> <data> <pwd>");
+ PrintAndLog("Options:");
+ PrintAndLog(" h - this help");
+ PrintAndLog(" address - memory address to write to. (0-15)");
+ PrintAndLog(" data - data to write (hex)");
+ PrintAndLog(" pwd - password (hex) (optional)");
+ PrintAndLog("samples:");
+ PrintAndLog(" lf em 4x05write 1 deadc0de");
+ 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 EM4x05ReadWord_ext(uint8_t addr, uint32_t pwd, bool usePwd, uint32_t *word) {
+ UsbCommand c = {CMD_EM4X_READ_WORD, {addr, pwd, usePwd}};
+ clearCommandBuffer();
+ SendCommand(&c);
+ UsbCommand resp;
+ if (!WaitForResponseTimeout(CMD_ACK, &resp, 2500)){
+ PrintAndLog("Command timed out");
+ return -1;
+ }
+ if ( !downloadSamplesEM() ) {
+ return -1;
+ }
+ int testLen = (GraphTraceLen < 1000) ? GraphTraceLen : 1000;
+ if (graphJustNoise(GraphBuffer, testLen)) {
+ PrintAndLog("no tag found");
+ return -1;
+ }
+ return demodEM4x05resp(word);
+}
+
+int CmdEM4x05Dump(const char *Cmd) {
+ uint8_t addr = 0;
+ uint32_t pwd = 0;
+ bool usePwd = false;
+ uint8_t ctmp = param_getchar(Cmd, 0);
+ if ( ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x05_dump();
+
+ // 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;
+
+ int success = 1;
+ uint32_t word = 0;
+ PrintAndLog("Addr | data | ascii");
+ PrintAndLog("-----+--------+------");
+ for (; addr < 16; addr++) {
+
+ if (addr == 2) {
+ if (usePwd) {
+ PrintAndLog(" %02u | %08X", addr, pwd, word );
+ } else {
+ PrintAndLog(" 02 | cannot read");
+ }
+ } else {
+ success &= EM4x05ReadWord_ext(addr, pwd, usePwd, &word);
+ }
+ }
+
+ return success;
+}
+
+int CmdEM4x05Read(const char *Cmd) {
+ uint8_t addr;
+ uint32_t pwd;
+ bool usePwd = false;
+ uint8_t ctmp = param_getchar(Cmd, 0);
+ if ( strlen(Cmd) == 0 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x05_read();
+
+ addr = param_get8ex(Cmd, 0, 50, 10);
+ pwd = param_get32ex(Cmd, 1, 1, 16);
+
+ if (addr > 15) {
+ PrintAndLog("Address must be between 0 and 15");
+ return 1;
+ }
+ if ( pwd == 1 ) {
+ PrintAndLog("Reading address %02u", addr);
+ }
+ else {
+ usePwd = true;
+ PrintAndLog("Reading address %02u | password %08X", addr, pwd);
+ }
+
+ uint32_t word = 0;
+ int isOk = EM4x05ReadWord_ext(addr, pwd, usePwd, &word);
+ if (isOk)
+ PrintAndLog("Address %02d | %08X - %s", addr, word, (addr > 13) ? "Lock" : "");
+ else
+ PrintAndLog("Read Address %02d | failed",addr);
+ return isOk;
+}
+
+int CmdEM4x05Write(const char *Cmd) {
+ uint8_t ctmp = param_getchar(Cmd, 0);
+ if ( strlen(Cmd) == 0 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x05_write();
+
+ bool usePwd = false;
+ uint8_t addr = 50; // default to invalid address
+ uint32_t data = 0; // default to blank data
+ uint32_t pwd = 1; // default to blank password
+
+ addr = param_get8ex(Cmd, 0, 50, 10);
+ data = param_get32ex(Cmd, 1, 0, 16);
+ pwd = param_get32ex(Cmd, 2, 1, 16);
+
+ if ( addr > 15 ) {
+ PrintAndLog("Address must be between 0 and 15");
+ return 1;
+ }
+ if ( pwd == 1 )
+ PrintAndLog("Writing address %d data %08X", addr, data);
+ else {
+ usePwd = true;
+ PrintAndLog("Writing address %d data %08X using password %08X", addr, data, pwd);
+ }
+
+ uint16_t flag = (addr << 8 ) | usePwd;
+
+ UsbCommand c = {CMD_EM4X_WRITE_WORD, {flag, data, pwd}};
+ clearCommandBuffer();
+ SendCommand(&c);
+ UsbCommand resp;
+ if (!WaitForResponseTimeout(CMD_ACK, &resp, 2000)){
+ PrintAndLog("Error occurred, device did not respond during write operation.");
+ return -1;
+ }
+
+ if (!downloadSamplesEM())
+ return -1;
+
+ //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(uint32_t block0, uint32_t serial) {
+
+ uint8_t chipType = (block0 >> 1) & 0xF;
+ uint8_t cap = (block0 >> 5) & 3;
+ uint16_t custCode = (block0 >> 9) & 0x3FF;
+
+ switch (chipType) {
+ case 9: PrintAndLog("\n Chip Type: %u | EM4305", chipType); break;
+ case 8: PrintAndLog("\n Chip Type: %u | EM4205", 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 word) {
+ for (uint8_t i = 0; i < 15; i++) {
+ PrintAndLog(" Word: %02u | %s", i, (((1 << i) & word ) || i < 2) ? "Is Write Locked" : "Is Not Write Locked");
+ if (i==14)
+ PrintAndLog(" Word: %02u | %s", i+1, (((1 << i) & word ) || i < 2) ? "Is Write Locked" : "Is Not Write Locked");
+ }
+}
+
+//quick test for EM4x05/EM4x69 tag
+bool EM4x05IsBlock0(uint32_t *word) {
+ return EM4x05ReadWord_ext(0, 0, FALSE, word);
+}
+
+int CmdEM4x05Info(const char *Cmd) {
+#define EM_SERIAL_BLOCK 1
+#define EM_CONFIG_BLOCK 4
+#define EM_PROT1_BLOCK 14
+#define EM_PROT2_BLOCK 15
+ uint32_t pwd;
+ uint32_t word = 0, block0 = 0, serial = 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 ( !EM4x05IsBlock0(&block0) )
+ return -1;
+
+ // read word 1 (serial #) doesn't need pwd
+ // continue if failed, .. non blocking fail.
+ EM4x05ReadWord_ext(EM_SERIAL_BLOCK, 0, false, &serial);
+ printEM4x05info(block0, serial);
+
+ // read word 4 (config block)
+ // needs password if one is set
+ if ( EM4x05ReadWord_ext(EM_CONFIG_BLOCK, pwd, usePwd, &word) != 1 )
+ return 0;
+
+ printEM4x05config(word);
+
+ // read word 14 and 15 to see which is being used for the protection bits
+ if ( EM4x05ReadWord_ext(EM_PROT1_BLOCK, pwd, usePwd, &word) != 1 ) {
+ return 0;
+ }
+ // if status bit says this is not the used protection word
+ if (!(word & 0x8000)) {
+ if ( EM4x05ReadWord_ext(EM_PROT2_BLOCK, pwd, usePwd, &word) != 1 )
+ return 0;
+ }
+ //something went wrong
+ if (!(word & 0x8000)) return 0;
+ printEM4x05ProtectionBits(word);
+ 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, "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"},
+ {"4x50read", CmdEM4x50Read, 0, "read word data from EM4x50"},
+ {"4x50write", CmdEM4x50Write, 0, "write word data to EM4x50"},
+ {"4x50dump", CmdEM4x50Dump, 0, "dump EM4x50 tag"},
+ {NULL, NULL, 0, NULL}