#include <stdio.h>
#include <string.h>
#include <inttypes.h>
+#include "cmdlfem4x.h"
#include "proxmark3.h"
#include "ui.h"
#include "util.h"
#include "cmdlf.h"
#include "cmdmain.h"
#include "lfdemod.h"
+#include "protocols.h"
uint64_t g_em410xId=0;
int AskEm410xDecode(bool verbose, uint32_t *hi, uint64_t *lo )
{
size_t idx = 0;
- size_t BitLen = DemodBufferLen;
- uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
- memcpy(BitStream, DemodBuffer, BitLen);
- if (Em410xDecode(BitStream, &BitLen, &idx, hi, lo)){
+ uint8_t BitStream[512]={0};
+ size_t BitLen = sizeof(BitStream);
+ if ( !getDemodBuf(BitStream, &BitLen) ) return 0;
+
+ if (Em410xDecode(BitStream, &BitLen, &idx, hi, lo)) {
//set GraphBuffer for clone or sim command
- setDemodBuf(BitStream, BitLen, idx);
- if (g_debugMode){
+ setDemodBuf(DemodBuffer, (BitLen==40) ? 64 : 128, idx+1);
+ setClockGrid(g_DemodClock, g_DemodStartIdx + ((idx+1)*g_DemodClock));
+
+ if (g_debugMode) {
PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
printDemodBuff();
}
- if (verbose){
+ if (verbose) {
PrintAndLog("EM410x pattern found: ");
printEM410x(*hi, *lo);
g_em410xId = *lo;
printf("\naborted via keyboard!\n");
break;
}
-
- CmdLFRead("s");
- getSamples("8201",true);
+ lf_read(true, 8201);
} while (!CmdAskEM410xDemod(""));
return 0;
}
setDemodBuf(DemodBuffer, 32, 0);
+ //setClockGrid(0,0);
+
*word = bytebits_to_byteLSBF(DemodBuffer, 32);
}
return true;
int usage_lf_em_write(void) {
PrintAndLog("Write EM4x05/EM4x69. Tag must be on antenna. ");
PrintAndLog("");
- PrintAndLog("Usage: lf em 4x05writeword [h] [s] <address> <data> <pwd>");
+ PrintAndLog("Usage: lf em 4x05writeword [h] a <address> d <data> p <pwd> [s] [i]");
PrintAndLog("Options:");
- PrintAndLog(" h - this help");
- PrintAndLog(" s - swap data bit order before write");
- PrintAndLog(" address - memory address to write to. (0-15)");
- PrintAndLog(" data - data to write (hex)");
- PrintAndLog(" pwd - password (hex) (optional)");
+ PrintAndLog(" h - this help");
+ PrintAndLog(" a <address> - memory address to write to. (0-15)");
+ PrintAndLog(" d <data> - data to write (hex)");
+ PrintAndLog(" p <pwd> - password (hex) (optional)");
+ PrintAndLog(" s - swap the data bit order before write");
+ PrintAndLog(" i - invert the data bits before write");
PrintAndLog("samples:");
- PrintAndLog(" lf em 4x05writeword 1");
- PrintAndLog(" lf em 4x05writeword 1 deadc0de 11223344");
+ PrintAndLog(" lf em 4x05writeword a 5 d 11223344");
+ PrintAndLog(" lf em 4x05writeword a 5 p deadc0de d 11223344 s i");
return 0;
}
-int CmdEM4x05WriteWord(const char *Cmd) {
- uint8_t ctmp = param_getchar(Cmd, 0);
- if ( strlen(Cmd) == 0 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_em_write();
-
- bool usePwd = false;
-
- uint8_t addr = 16; // default to invalid address
- uint32_t data = 0xFFFFFFFF; // default to blank data
- uint32_t pwd = 0xFFFFFFFF; // default to blank password
- char swap = 0;
+// note: em4x05 doesn't have a way to invert data output so we must invert the data prior to writing
+// it if invertion is needed. (example FSK2a vs FSK)
+// also em4x05 requires swapping word data when compared to the data used for t55xx chips.
+int EM4x05WriteWord(uint8_t addr, uint32_t data, uint32_t pwd, bool usePwd, bool swap, bool invert) {
+ if (swap) data = SwapBits(data, 32);
- int p = 0;
- swap = param_getchar(Cmd, 0);
- if (swap == 's' || swap=='S') p++;
- addr = param_get8ex(Cmd, p++, 16, 10);
- data = param_get32ex(Cmd, p++, 0, 16);
- pwd = param_get32ex(Cmd, p++, 1, 16);
-
- if (swap == 's' || swap=='S') data = SwapBits(data, 32);
+ if (invert) data ^= 0xFFFFFFFF;
if ( (addr > 15) ) {
PrintAndLog("Address must be between 0 and 15");
- return 1;
+ return -1;
}
- if ( pwd == 1 )
- PrintAndLog("Writing address %d data %08X", addr, data);
- else {
- usePwd = true;
+ if ( !usePwd ) {
+ PrintAndLog("Writing address %d data %08X", addr, data);
+ } else {
PrintAndLog("Writing address %d data %08X using password %08X", addr, data, pwd);
}
return result;
}
+int CmdEM4x05WriteWord(const char *Cmd) {
+ bool errors = false;
+ bool usePwd = false;
+ uint32_t data = 0xFFFFFFFF;
+ uint32_t pwd = 0xFFFFFFFF;
+ bool swap = false;
+ bool invert = false;
+ uint8_t addr = 16; // default to invalid address
+ bool gotData = false;
+ char cmdp = 0;
+ while(param_getchar(Cmd, cmdp) != 0x00)
+ {
+ switch(param_getchar(Cmd, cmdp))
+ {
+ case 'h':
+ case 'H':
+ return usage_lf_em_write();
+ case 'a':
+ case 'A':
+ addr = param_get8ex(Cmd, cmdp+1, 16, 10);
+ cmdp += 2;
+ break;
+ case 'd':
+ case 'D':
+ data = param_get32ex(Cmd, cmdp+1, 0, 16);
+ gotData = true;
+ cmdp += 2;
+ break;
+ case 'i':
+ case 'I':
+ invert = true;
+ cmdp++;
+ break;
+ case 'p':
+ case 'P':
+ pwd = param_get32ex(Cmd, cmdp+1, 1, 16);
+ if (pwd == 1) {
+ PrintAndLog("invalid pwd");
+ errors = true;
+ }
+ usePwd = true;
+ cmdp += 2;
+ break;
+ case 's':
+ case 'S':
+ swap = true;
+ cmdp++;
+ break;
+ default:
+ PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+ errors = true;
+ break;
+ }
+ if(errors) break;
+ }
+ //Validations
+ if(errors) return usage_lf_em_write();
+
+ if ( strlen(Cmd) == 0 ) return usage_lf_em_write();
+
+ if (!gotData) {
+ PrintAndLog("You must enter the data you want to write");
+ return usage_lf_em_write();
+ }
+ return EM4x05WriteWord(addr, data, pwd, usePwd, swap, invert);
+}
+
void printEM4x05config(uint32_t wordData) {
- uint16_t datarate = (((wordData & 0x3F)+1)*2);
+ uint16_t datarate = EM4x05_GET_BITRATE(wordData);
uint8_t encoder = ((wordData >> 6) & 0xF);
char enc[14];
memset(enc,0,sizeof(enc));
uint8_t delay = (wordData >> 12) & 0x3;
char cdelay[33];
memset(cdelay,0,sizeof(cdelay));
- uint8_t LWR = (wordData >> 14) & 0xF; //last word read
-
+ uint8_t numblks = EM4x05_GET_NUM_BLOCKS(wordData);
+ uint8_t LWR = numblks+5-1; //last word read
switch (encoder) {
case 0: snprintf(enc,sizeof(enc),"NRZ"); break;
case 1: snprintf(enc,sizeof(enc),"Manchester"); 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;
}
+ uint8_t readLogin = (wordData & EM4x05_READ_LOGIN_REQ)>>18;
+ uint8_t readHKL = (wordData & EM4x05_READ_HK_LOGIN_REQ)>>19;
+ uint8_t writeLogin = (wordData & EM4x05_WRITE_LOGIN_REQ)>>20;
+ uint8_t writeHKL = (wordData & EM4x05_WRITE_HK_LOGIN_REQ)>>21;
+ uint8_t raw = (wordData & EM4x05_READ_AFTER_WRITE)>>22;
+ uint8_t disable = (wordData & EM4x05_DISABLE_ALLOWED)>>23;
+ uint8_t rtf = (wordData & EM4x05_READER_TALK_FIRST)>>24;
+ uint8_t pigeon = (wordData & (1<<26))>>26;
PrintAndLog("ConfigWord: %08X (Word 4)\n", wordData);
- PrintAndLog("Config Breakdown:", wordData);
+ PrintAndLog("Config Breakdown:");
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");
+ PrintAndLog(" LastWordR: %02u | Address of last word for default read - meaning %u blocks are output", LWR, numblks);
+ PrintAndLog(" ReadLogin: %u | Read Login is %s", readLogin, readLogin ? "Required" : "Not Required");
+ PrintAndLog(" ReadHKL: %u | Read Housekeeping Words Login is %s", readHKL, readHKL ? "Required" : "Not Required");
+ PrintAndLog("WriteLogin: %u | Write Login is %s", writeLogin, writeLogin ? "Required" : "Not Required");
+ PrintAndLog(" WriteHKL: %u | Write Housekeeping Words Login is %s", writeHKL, writeHKL ? "Required" : "Not Required");
+ PrintAndLog(" R.A.W.: %u | Read After Write is %s", raw, raw ? "On" : "Off");
+ PrintAndLog(" Disable: %u | Disable Command is %s", disable, disable ? "Accepted" : "Not Accepted");
+ PrintAndLog(" R.T.F.: %u | Reader Talk First is %s", rtf, rtf ? "Enabled" : "Disabled");
+ PrintAndLog(" Pigeon: %u | Pigeon Mode is %s\n", pigeon, pigeon ? "Enabled" : "Disabled");
}
void printEM4x05info(uint8_t chipType, uint8_t cap, uint16_t custCode, uint32_t serial) {
wordData = 0;
if ( EM4x05ReadWord_ext(4, pwd, usePwd, &wordData) != 1 ) {
//failed
+ PrintAndLog("Config block read failed - might be password protected.");
return 0;
}
printEM4x05config(wordData);
projects / proxmark3-svn / blobdiff