X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/b8d34d0598d48ed365053acc2830f1b883c732a0..7906cb41ff3566aa1c27b71e457a59b4ca3e749a:/client/cmdhf14b.c diff --git a/client/cmdhf14b.c b/client/cmdhf14b.c index 496267cd..36932cbd 100644 --- a/client/cmdhf14b.c +++ b/client/cmdhf14b.c @@ -22,6 +22,7 @@ #include "cmdparser.h" #include "cmdhf14b.h" #include "cmdmain.h" +#include "cmdhf14a.h" static int CmdHelp(const char *Cmd); @@ -35,6 +36,7 @@ int CmdHF14BList(const char *Cmd) int CmdHF14BSim(const char *Cmd) { UsbCommand c={CMD_SIMULATE_TAG_ISO_14443B}; + clearCommandBuffer(); SendCommand(&c); return 0; } @@ -42,6 +44,7 @@ int CmdHF14BSim(const char *Cmd) int CmdHF14BSnoop(const char *Cmd) { UsbCommand c = {CMD_SNOOP_ISO_14443B}; + clearCommandBuffer(); SendCommand(&c); return 0; } @@ -53,6 +56,7 @@ int CmdHF14BSnoop(const char *Cmd) int CmdSri512Read(const char *Cmd) { UsbCommand c = {CMD_READ_SRI512_TAG, {strtol(Cmd, NULL, 0), 0, 0}}; + clearCommandBuffer(); SendCommand(&c); return 0; } @@ -64,129 +68,559 @@ int CmdSri512Read(const char *Cmd) int CmdSrix4kRead(const char *Cmd) { UsbCommand c = {CMD_READ_SRIX4K_TAG, {strtol(Cmd, NULL, 0), 0, 0}}; + clearCommandBuffer(); SendCommand(&c); return 0; } -int CmdHF14BCmdRaw (const char *cmd) { - UsbCommand resp; - uint8_t *recv; - UsbCommand c = {CMD_ISO_14443B_COMMAND, {0, 0, 0}}; // len,recv? - uint8_t reply=1; - uint8_t crc=0; - uint8_t power=0; - char buf[5]=""; - int i=0; - uint8_t data[100] = {0x00}; - unsigned int datalen=0, temp; - char *hexout; - - if (strlen(cmd)<3) { - PrintAndLog("Usage: hf 14b raw [-r] [-c] [-p] <0A 0B 0C ... hex>"); - PrintAndLog(" -r do not read response"); - PrintAndLog(" -c calculate and append CRC"); - PrintAndLog(" -p leave the field on after receive"); - return 0; - } - - // strip - while (*cmd==' ' || *cmd=='\t') cmd++; - - while (cmd[i]!='\0') { - if (cmd[i]==' ' || cmd[i]=='\t') { i++; continue; } - if (cmd[i]=='-') { - switch (cmd[i+1]) { - case 'r': - case 'R': - reply=0; - break; - case 'c': - case 'C': - crc=1; - break; - case 'p': - case 'P': - power=1; - break; - default: - PrintAndLog("Invalid option"); - return 0; - } - i+=2; - continue; - } - if ((cmd[i]>='0' && cmd[i]<='9') || - (cmd[i]>='a' && cmd[i]<='f') || - (cmd[i]>='A' && cmd[i]<='F') ) { - buf[strlen(buf)+1]=0; - buf[strlen(buf)]=cmd[i]; - i++; - - if (strlen(buf)>=2) { - sscanf(buf,"%x",&temp); - data[datalen]=(uint8_t)(temp & 0xff); - datalen++; - *buf=0; - } - continue; - } - PrintAndLog("Invalid char on input"); - return 1; - } - if (datalen == 0) - { - PrintAndLog("Missing data input"); - return 0; - } - if(crc) - { - uint8_t first, second; - ComputeCrc14443(CRC_14443_B, data, datalen, &first, &second); - data[datalen++] = first; - data[datalen++] = second; - } - - c.arg[0] = datalen; - c.arg[1] = reply; - c.arg[2] = power; - memcpy(c.d.asBytes,data,datalen); - - SendCommand(&c); - - if (reply) { - if (WaitForResponseTimeout(CMD_ACK,&resp,1000)) { - recv = resp.d.asBytes; - PrintAndLog("received %i octets",resp.arg[0]); - if(resp.arg[0] == 0) - return 0; - hexout = (char *)malloc(resp.arg[0] * 3 + 1); - if (hexout != NULL) { - uint8_t first, second; - for (int i = 0; i < resp.arg[0]; i++) { // data in hex - sprintf(&hexout[i * 3], "%02X ", recv[i]); - } - PrintAndLog("%s", hexout); - free(hexout); - if (resp.arg[0] > 2) { - ComputeCrc14443(CRC_14443_B, recv, resp.arg[0]-2, &first, &second); - if(recv[resp.arg[0]-2]==first && recv[resp.arg[0]-1]==second) { - PrintAndLog("CRC OK"); - } else { - PrintAndLog("CRC failed"); +int rawClose(void){ + UsbCommand resp; + UsbCommand c = {CMD_ISO_14443B_COMMAND, {0, 0, 0}}; + clearCommandBuffer(); + SendCommand(&c); + if (!WaitForResponseTimeout(CMD_ACK,&resp,1000)) { + return 0; + } + return 0; +} + +int HF14BCmdRaw(bool reply, bool *crc, bool power, uint8_t *data, uint8_t *datalen, bool verbose){ + UsbCommand resp; + UsbCommand c = {CMD_ISO_14443B_COMMAND, {0, 0, 0}}; // len,recv,power + if(*crc) + { + uint8_t first, second; + ComputeCrc14443(CRC_14443_B, data, *datalen, &first, &second); + data[*datalen] = first; + data[*datalen + 1] = second; + *datalen += 2; + } + + c.arg[0] = *datalen; + c.arg[1] = reply; + c.arg[2] = power; + memcpy(c.d.asBytes,data,*datalen); + clearCommandBuffer(); + SendCommand(&c); + + if (!reply) return 1; + + if (!WaitForResponseTimeout(CMD_ACK,&resp,1000)) { + if (verbose) PrintAndLog("timeout while waiting for reply."); + return 0; + } + *datalen = resp.arg[0]; + if (verbose) PrintAndLog("received %u octets", *datalen); + if(*datalen<2) return 0; + + memcpy(data, resp.d.asBytes, *datalen); + if (verbose) PrintAndLog("%s", sprint_hex(data, *datalen)); + + uint8_t first, second; + ComputeCrc14443(CRC_14443_B, data, *datalen-2, &first, &second); + if(data[*datalen-2] == first && data[*datalen-1] == second) { + if (verbose) PrintAndLog("CRC OK"); + *crc = true; + } else { + if (verbose) PrintAndLog("CRC failed"); + *crc = false; + } + return 1; +} + +int CmdHF14BCmdRaw (const char *Cmd) { + bool reply = true; + bool crc = false; + bool power = false; + bool select = false; + bool SRx = false; + char buf[5] = ""; + uint8_t data[100] = {0x00}; + uint8_t datalen = 0; + unsigned int temp; + int i = 0; + if (strlen(Cmd)<3) { + PrintAndLog("Usage: hf 14b raw [-r] [-c] [-p] [-s || -ss] <0A 0B 0C ... hex>"); + PrintAndLog(" -r do not read response"); + PrintAndLog(" -c calculate and append CRC"); + PrintAndLog(" -p leave the field on after receive"); + PrintAndLog(" -s active signal field ON with select"); + PrintAndLog(" -ss active signal field ON with select for SRx ST Microelectronics tags"); + return 0; + } + + // strip + while (*Cmd==' ' || *Cmd=='\t') Cmd++; + + while (Cmd[i]!='\0') { + if (Cmd[i]==' ' || Cmd[i]=='\t') { i++; continue; } + if (Cmd[i]=='-') { + switch (Cmd[i+1]) { + case 'r': + case 'R': + reply = false; + break; + case 'c': + case 'C': + crc = true; + break; + case 'p': + case 'P': + power = true; + break; + case 's': + case 'S': + select = true; + if (Cmd[i+2]=='s' || Cmd[i+2]=='S') { + SRx = true; + i++; } - } - } else { - PrintAndLog("malloc failed your client has low memory?"); - } - } else { - PrintAndLog("timeout while waiting for reply."); - } - } // if reply - return 0; + break; + default: + PrintAndLog("Invalid option"); + return 0; + } + i+=2; + continue; + } + if ((Cmd[i]>='0' && Cmd[i]<='9') || + (Cmd[i]>='a' && Cmd[i]<='f') || + (Cmd[i]>='A' && Cmd[i]<='F') ) { + buf[strlen(buf)+1]=0; + buf[strlen(buf)]=Cmd[i]; + i++; + + if (strlen(buf)>=2) { + sscanf(buf,"%x",&temp); + data[datalen++]=(uint8_t)(temp & 0xff); + *buf=0; + } + continue; + } + PrintAndLog("Invalid char on input"); + return 0; + } + if (datalen == 0) + { + PrintAndLog("Missing data input"); + return 0; + } + + if (select){ //auto select 14b tag + uint8_t cmd2[16]; + bool crc2 = true; + uint8_t cmdLen; + + if (SRx) { + // REQ SRx + cmdLen = 2; + cmd2[0] = 0x06; + cmd2[1] = 0x00; + } else { + cmdLen = 3; + // REQB + cmd2[0] = 0x05; + cmd2[1] = 0x00; + cmd2[2] = 0x08; + } + + if (HF14BCmdRaw(true, &crc2, true, cmd2, &cmdLen, false)==0) return rawClose(); + + if ( SRx && (cmdLen != 3 || !crc2) ) return rawClose(); + else if (cmd2[0] != 0x50 || cmdLen != 14 || !crc2) return rawClose(); + + uint8_t chipID = 0; + if (SRx) { + // select + chipID = cmd2[0]; + cmd2[0] = 0x0E; + cmd2[1] = chipID; + cmdLen = 2; + } else { + // attrib + cmd2[0] = 0x1D; + // UID from cmd2[1 - 4] + cmd2[5] = 0x00; + cmd2[6] = 0x08; + cmd2[7] = 0x01; + cmd2[8] = 0x00; + cmdLen = 9; + } + + if (HF14BCmdRaw(true, &crc2, true, cmd2, &cmdLen, false)==0) return rawClose(); + + if (cmdLen != 3 || !crc2) return rawClose(); + if (SRx && cmd2[0] != chipID) return rawClose(); + } + return HF14BCmdRaw(reply, &crc, power, data, &datalen, true); +} + +// print full atqb info +static void print_atqb_resp(uint8_t *data){ + //PrintAndLog (" UID: %s", sprint_hex(data+1,4)); + PrintAndLog (" App Data: %s", sprint_hex(data+5,4)); + PrintAndLog (" Protocol: %s", sprint_hex(data+9,3)); + uint8_t BitRate = data[9]; + if (!BitRate) + PrintAndLog (" Bit Rate: 106 kbit/s only PICC <-> PCD"); + if (BitRate & 0x10) + PrintAndLog (" Bit Rate: 212 kbit/s PICC -> PCD supported"); + if (BitRate & 0x20) + PrintAndLog (" Bit Rate: 424 kbit/s PICC -> PCD supported"); + if (BitRate & 0x40) + PrintAndLog (" Bit Rate: 847 kbit/s PICC -> PCD supported"); + if (BitRate & 0x01) + PrintAndLog (" Bit Rate: 212 kbit/s PICC <- PCD supported"); + if (BitRate & 0x02) + PrintAndLog (" Bit Rate: 424 kbit/s PICC <- PCD supported"); + if (BitRate & 0x04) + PrintAndLog (" Bit Rate: 847 kbit/s PICC <- PCD supported"); + if (BitRate & 0x80) + PrintAndLog (" Same bit rate <-> required"); + + uint16_t maxFrame = data[10]>>4; + if (maxFrame < 5) + maxFrame = 8*maxFrame + 16; + else if (maxFrame == 5) + maxFrame = 64; + else if (maxFrame == 6) + maxFrame = 96; + else if (maxFrame == 7) + maxFrame = 128; + else if (maxFrame == 8) + maxFrame = 256; + else + maxFrame = 257; + + PrintAndLog ("Max Frame Size: %u%s",maxFrame, (maxFrame == 257) ? "+ RFU" : ""); + + uint8_t protocolT = data[10] & 0xF; + PrintAndLog (" Protocol Type: Protocol is %scompliant with ISO/IEC 14443-4",(protocolT) ? "" : "not " ); + PrintAndLog ("Frame Wait Int: %u", data[11]>>4); + PrintAndLog (" App Data Code: Application is %s",(data[11]&4) ? "Standard" : "Proprietary"); + PrintAndLog (" Frame Options: NAD is %ssupported",(data[11]&2) ? "" : "not "); + PrintAndLog (" Frame Options: CID is %ssupported",(data[11]&1) ? "" : "not "); + PrintAndLog ("Max Buf Length: %u (MBLI) %s",data[14]>>4, (data[14] & 0xF0) ? "" : "not supported"); + + return; +} + +// get SRx chip model (from UID) // from ST Microelectronics +char *get_ST_Chip_Model(uint8_t data){ + static char model[20]; + char *retStr = model; + memset(model,0, sizeof(model)); + + switch (data) { + case 0x0: sprintf(retStr, "SRIX4K (Special)"); break; + case 0x2: sprintf(retStr, "SR176"); break; + case 0x3: sprintf(retStr, "SRIX4K"); break; + case 0x4: sprintf(retStr, "SRIX512"); break; + case 0x6: sprintf(retStr, "SRI512"); break; + case 0x7: sprintf(retStr, "SRI4K"); break; + case 0xC: sprintf(retStr, "SRT512"); break; + default : sprintf(retStr, "Unknown"); break; + } + return retStr; +} + +int print_ST_Lock_info(uint8_t model){ + //assume connection open and tag selected... + uint8_t data[16] = {0x00}; + uint8_t datalen = 2; + bool crc = true; + uint8_t resplen; + uint8_t blk1; + data[0] = 0x08; + + if (model == 0x2) { //SR176 has special command: + data[1] = 0xf; + resplen = 4; + } else { + data[1] = 0xff; + resplen = 6; + } + + //std read cmd + if (HF14BCmdRaw(true, &crc, true, data, &datalen, false)==0) return rawClose(); + + if (datalen != resplen || !crc) return rawClose(); + + PrintAndLog("Chip Write Protection Bits:"); + // now interpret the data + switch (model){ + case 0x0: //fall through (SRIX4K special) + case 0x3: //fall through (SRIx4K) + case 0x7: // (SRI4K) + //only need data[3] + blk1 = 9; + PrintAndLog(" raw: %s",printBits(1,data+3)); + PrintAndLog(" 07/08:%slocked", (data[3] & 1) ? " not " : " " ); + for (uint8_t i = 1; i<8; i++){ + PrintAndLog(" %02u:%slocked", blk1, (data[3] & (1 << i)) ? " not " : " " ); + blk1++; + } + break; + case 0x4: //fall through (SRIX512) + case 0x6: //fall through (SRI512) + case 0xC: // (SRT512) + //need data[2] and data[3] + blk1 = 0; + PrintAndLog(" raw: %s",printBits(2,data+2)); + for (uint8_t b=2; b<4; b++){ + for (uint8_t i=0; i<8; i++){ + PrintAndLog(" %02u:%slocked", blk1, (data[b] & (1 << i)) ? " not " : " " ); + blk1++; + } + } + break; + case 0x2: // (SR176) + //need data[2] + blk1 = 0; + PrintAndLog(" raw: %s",printBits(1,data+2)); + for (uint8_t i = 0; i<8; i++){ + PrintAndLog(" %02u/%02u:%slocked", blk1, blk1+1, (data[2] & (1 << i)) ? " " : " not " ); + blk1+=2; + } + break; + default: + return rawClose(); + } + return 1; +} + +// print UID info from SRx chips (ST Microelectronics) +static void print_st_general_info(uint8_t *data){ + //uid = first 8 bytes in data + PrintAndLog(" UID: %s", sprint_hex(SwapEndian64(data,8,8),8)); + PrintAndLog(" MFG: %02X, %s", data[6], getTagInfo(data[6])); + PrintAndLog(" Chip: %02X, %s", data[5]>>2, get_ST_Chip_Model(data[5]>>2)); + return; +} + +// 14b get and print UID only (general info) +int HF14BStdReader(uint8_t *data, uint8_t *datalen){ + //05 00 00 = find one tag in field + //1d xx xx xx xx 00 08 01 00 = attrib xx=UID (resp 10 [f9 e0]) + //a3 = ? (resp 03 [e2 c2]) + //02 = ? (resp 02 [6a d3]) + // 022b (resp 02 67 00 [29 5b]) + // 0200a40400 (resp 02 67 00 [29 5b]) + // 0200a4040c07a0000002480300 (resp 02 67 00 [29 5b]) + // 0200a4040c07a0000002480200 (resp 02 67 00 [29 5b]) + // 0200a4040006a0000000010100 (resp 02 6a 82 [4b 4c]) + // 0200a4040c09d27600002545500200 (resp 02 67 00 [29 5b]) + // 0200a404000cd2760001354b414e4d30310000 (resp 02 6a 82 [4b 4c]) + // 0200a404000ca000000063504b43532d313500 (resp 02 6a 82 [4b 4c]) + // 0200a4040010a000000018300301000000000000000000 (resp 02 6a 82 [4b 4c]) + //03 = ? (resp 03 [e3 c2]) + //c2 = ? (resp c2 [66 15]) + //b2 = ? (resp a3 [e9 67]) + //a2 = ? (resp 02 [6a d3]) + bool crc = true; + *datalen = 3; + //std read cmd + data[0] = 0x05; + data[1] = 0x00; + data[2] = 0x08; + + if (HF14BCmdRaw(true, &crc, true, data, datalen, false)==0) return rawClose(); + + if (data[0] != 0x50 || *datalen != 14 || !crc) return rawClose(); + + PrintAndLog ("\n14443-3b tag found:"); + PrintAndLog (" UID: %s", sprint_hex(data+1,4)); + + uint8_t cmd2[16]; + uint8_t cmdLen = 3; + bool crc2 = true; + + cmd2[0] = 0x1D; + // UID from data[1 - 4] + cmd2[1] = data[1]; + cmd2[2] = data[2]; + cmd2[3] = data[3]; + cmd2[4] = data[4]; + cmd2[5] = 0x00; + cmd2[6] = 0x08; + cmd2[7] = 0x01; + cmd2[8] = 0x00; + cmdLen = 9; + + // attrib + if (HF14BCmdRaw(true, &crc2, true, cmd2, &cmdLen, false)==0) return rawClose(); + + if (cmdLen != 3 || !crc2) return rawClose(); + // add attrib responce to data + data[14] = cmd2[0]; + rawClose(); + return 1; +} + +// 14b get and print Full Info (as much as we know) +int HF14BStdInfo(uint8_t *data, uint8_t *datalen){ + if (!HF14BStdReader(data,datalen)) return 0; + + //add more info here + print_atqb_resp(data); + + + return 1; +} + +// SRx get and print general info about SRx chip from UID +int HF14B_ST_Reader(uint8_t *data, uint8_t *datalen, bool closeCon){ + bool crc = true; + *datalen = 2; + //wake cmd + data[0] = 0x06; + data[1] = 0x00; + + //leave power on + // verbose on for now for testing - turn off when functional + if (HF14BCmdRaw(true, &crc, true, data, datalen, false)==0) return rawClose(); + + if (*datalen != 3 || !crc) return rawClose(); + + uint8_t chipID = data[0]; + // select + data[0] = 0x0E; + data[1] = chipID; + *datalen = 2; + + //leave power on + if (HF14BCmdRaw(true, &crc, true, data, datalen, false)==0) return rawClose(); + + if (*datalen != 3 || !crc || data[0] != chipID) return rawClose(); + + // get uid + data[0] = 0x0B; + *datalen = 1; + + //leave power on + if (HF14BCmdRaw(true, &crc, true, data, datalen, false)==0) return rawClose(); + + if (*datalen != 10 || !crc) return rawClose(); + + //power off ? + if (closeCon) rawClose(); + + PrintAndLog("\n14443-3b ST tag found:"); + print_st_general_info(data); + return 1; +} + +// SRx get and print full info (needs more info...) +int HF14B_ST_Info(uint8_t *data, uint8_t *datalen){ + if (!HF14B_ST_Reader(data, datalen, false)) return 0; + + //add locking bit information here. + if (print_ST_Lock_info(data[5]>>2)) + rawClose(); + + return 1; } -int CmdHF14BWrite( const char *Cmd){ +// test for other 14b type tags (mimic another reader - don't have tags to identify) +int HF14B_Other_Reader(uint8_t *data, uint8_t *datalen){ + bool crc = true; + *datalen = 4; + //std read cmd + data[0] = 0x00; + data[1] = 0x0b; + data[2] = 0x3f; + data[3] = 0x80; + + if (HF14BCmdRaw(true, &crc, true, data, datalen, false)!=0) { + if (*datalen > 2 || !crc) { + PrintAndLog ("\n14443-3b tag found:"); + PrintAndLog ("Unknown tag type answered to a 0x000b3f80 command ans:"); + PrintAndLog ("%s",sprint_hex(data,*datalen)); + rawClose(); + return 1; + } + } + + crc = false; + *datalen = 1; + data[0] = 0x0a; + + if (HF14BCmdRaw(true, &crc, true, data, datalen, false)!=0) { + if (*datalen > 0) { + PrintAndLog ("\n14443-3b tag found:"); + PrintAndLog ("Unknown tag type answered to a 0x0A command ans:"); + PrintAndLog ("%s",sprint_hex(data,*datalen)); + rawClose(); + return 1; + } + } + + crc = false; + *datalen = 1; + data[0] = 0x0c; + + if (HF14BCmdRaw(true, &crc, true, data, datalen, false)!=0) { + if (*datalen > 0) { + PrintAndLog ("\n14443-3b tag found:"); + PrintAndLog ("Unknown tag type answered to a 0x0C command ans:"); + PrintAndLog ("%s",sprint_hex(data,*datalen)); + rawClose(); + return 1; + } + } + rawClose(); + return 0; +} + +// get and print all info known about any known 14b tag +int HF14BInfo(bool verbose){ + uint8_t data[100]; + uint8_t datalen = 5; + + // try std 14b (atqb) + if (HF14BStdInfo(data, &datalen)) return 1; + + // try st 14b + if (HF14B_ST_Info(data, &datalen)) return 1; + + // try unknown 14b read commands (to be identified later) + // could be read of calypso, CEPAS, moneo, or pico pass. + if (HF14B_Other_Reader(data, &datalen)) return 1; + + if (verbose) PrintAndLog("no 14443B tag found"); + return 0; +} + +// menu command to get and print all info known about any known 14b tag +int CmdHF14Binfo(const char *Cmd){ + return HF14BInfo(true); +} + +// get and print general info about all known 14b chips +int HF14BReader(bool verbose){ + uint8_t data[100]; + uint8_t datalen = 5; + + // try std 14b (atqb) + if (HF14BStdReader(data, &datalen)) return 1; + + // try st 14b + if (HF14B_ST_Reader(data, &datalen, true)) return 1; + + // try unknown 14b read commands (to be identified later) + // could be read of calypso, CEPAS, moneo, or pico pass. + if (HF14B_Other_Reader(data, &datalen)) return 1; + + if (verbose) PrintAndLog("no 14443B tag found"); + return 0; +} + +// menu command to get and print general info about all known 14b chips +int CmdHF14BReader(const char *Cmd){ + return HF14BReader(true); +} +int CmdSriWrite( const char *Cmd){ /* * For SRIX4K blocks 00 - 7F * hf 14b raw -c -p 09 $srix4kwblock $srix4kwdata @@ -256,13 +690,15 @@ int CmdHF14BWrite( const char *Cmd){ static command_t CommandTable[] = { {"help", CmdHelp, 1, "This help"}, - {"list", CmdHF14BList, 0, "[Deprecated] List ISO 14443b history"}, + {"info", CmdHF14Binfo, 0, "Find and print details about a 14443B tag"}, + {"list", CmdHF14BList, 0, "[Deprecated] List ISO 14443B history"}, + {"reader", CmdHF14BReader, 0, "Act as a 14443B reader to identify a tag"}, {"sim", CmdHF14BSim, 0, "Fake ISO 14443B tag"}, {"snoop", CmdHF14BSnoop, 0, "Eavesdrop ISO 14443B"}, {"sri512read", CmdSri512Read, 0, "Read contents of a SRI512 tag"}, {"srix4kread", CmdSrix4kRead, 0, "Read contents of a SRIX4K tag"}, + {"sriwrite", CmdSriWrite, 0, "Write data to a SRI512 | SRIX4K tag"}, {"raw", CmdHF14BCmdRaw, 0, "Send raw hex data to tag"}, - {"write", CmdHF14BWrite, 0, "Write data to a SRI512 | SRIX4K tag"}, {NULL, NULL, 0, NULL} };