#include "proxmark3.h"
#include "ui.h"
#include "util.h"
+#include "data.h"
#include "graph.h"
#include "cmdparser.h"
#include "cmddata.h"
return 1;
}
+int usage_lf_em410x_sim(void) {
+ PrintAndLog("Simulating EM410x tag");
+ PrintAndLog("");
+ 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 em 410xsim 0F0368568B");
+ PrintAndLog(" lf em 410xsim 0F0368568B 32");
+ return 0;
+}
+
// emulate an EM410X tag
int CmdEM410xSim(const char *Cmd)
{
char cmdp = param_getchar(Cmd, 0);
uint8_t uid[5] = {0x00};
- if (cmdp == 'h' || cmdp == 'H') {
- PrintAndLog("Usage: lf em4x em410xsim <UID> <clock>");
- PrintAndLog("");
- PrintAndLog(" sample: lf em4x em410xsim 0F0368568B");
- return 0;
- }
+ if (cmdp == 'h' || cmdp == 'H') return usage_lf_em410x_sim();
/* clock is 64 in EM410x tags */
uint8_t clock = 64;
int card = 0xFF; // invalid card value
unsigned int clock = 0; // invalid clock value
- sscanf(Cmd, "%" PRIx64 " %d %d", &id, &card, &clock);
+ sscanf(Cmd, "%" SCNx64 " %d %d", &id, &card, &clock);
// Check ID
if (id == 0xFFFFFFFFFFFFFFFF) {
}
bool EM4x05testDemodReadData(uint32_t *word, bool readCmd) {
- // em4x05/em4x69 preamble is 00001010
+ // em4x05/em4x69 command response preamble is 00001010
// skip first two 0 bits as they might have been missed in the demod
uint8_t preamble[] = {0,0,1,0,1,0};
size_t startIdx = 0;
- // set size to 20 to only test first 14 positions for the preamble
- size_t size = (20 > DemodBufferLen) ? DemodBufferLen : 20;
- //test preamble
- if ( !onePreambleSearch(DemodBuffer, preamble, sizeof(preamble), size, &startIdx) ) {
+ // set size to 20 to only test first 14 positions for the preamble or less if not a read command
+ size_t size = (readCmd) ? 20 : 11;
+ // sanity check
+ size = (size > DemodBufferLen) ? DemodBufferLen : size;
+ // test preamble
+ if ( !preambleSearchEx(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx, true) ) {
if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305 preamble not found :: %d", startIdx);
return false;
}
if (g_debugMode) PrintAndLog("DEBUG: Error - End Parity check failed");
return false;
}
- //test for even parity bits.
- if ( removeParity(DemodBuffer, startIdx + sizeof(preamble),9,0,44) == 0 ) {
+ // test for even parity bits and remove them. (leave out the end row of parities so 36 bits)
+ if ( removeParity(DemodBuffer, startIdx + sizeof(preamble),9,0,36) == 0 ) {
if (g_debugMode) PrintAndLog("DEBUG: Error - Parity not detected");
return false;
}
- setDemodBuf(DemodBuffer, 40, 0);
+ setDemodBuf(DemodBuffer, 32, 0);
*word = bytebits_to_byteLSBF(DemodBuffer, 32);
}
return true;
uint32_t wordData = 0;
int success = EM4x05ReadWord_ext(addr, pwd, usePwd, &wordData);
if (success == 1)
- PrintAndLog(" Got Address %02d | %08X",addr,wordData);
+ PrintAndLog("%s Address %02d | %08X", (addr>13) ? "Lock":" Got",addr,wordData);
else
PrintAndLog("Read Address %02d | failed",addr);
int usage_lf_em_write(void) {
PrintAndLog("Write EM4x05/EM4x69. Tag must be on antenna. ");
PrintAndLog("");
- PrintAndLog("Usage: lf em 4x05writeword [h] <address> <data> <pwd>");
+ PrintAndLog("Usage: lf em 4x05writeword [h]
[s] <address> <data> <pwd>");
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)");
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
-
- addr = param_get8ex(Cmd, 0, 16, 10);
- data = param_get32ex(Cmd, 1, 0, 16);
- pwd = param_get32ex(Cmd, 2, 1, 16);
-
-
+ char swap = 0;
+
+ 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 ( (addr > 15) ) {
PrintAndLog("Address must be between 0 and 15");
return 1;
PrintAndLog("Writing address %d data %08X", addr, data);
else {
usePwd = true;
- PrintAndLog("Writing address %d data %08X using password %08X", addr, data, pwd);
+ 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;
+ UsbCommand resp;
if (!WaitForResponseTimeout(CMD_ACK, &resp, 2000)){
PrintAndLog("Error occurred, device did not respond during write operation.");
return -1;
if ( !downloadSamplesEM() ) {
return -1;
}
- //check response for 00001010 for write confirmation!
+ //check response for 00001010 for write confirmation!
//attempt demod:
uint32_t dummy = 0;
int result = demodEM4x05resp(&dummy,false);
if (result == 1) {
PrintAndLog("Write Verified");
+ } else {
+ PrintAndLog("Write could not be verified");
}
return result;
}
}
PrintAndLog("ConfigWord: %08X (Word 4)\n", wordData);
PrintAndLog("Config Breakdown:", wordData);
- PrintAndLog(" Data Rate: %02X | RF/%u", wordData & 0x3F, datarate);
+ 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 default word read", LWR);
+ 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");
}
}
+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) {
if (EM4x05ReadWord_ext(0,0,false,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 ) {
+ //failed
+ return 0;
+ }
+ // if status bit says this is not the used protection word
+ if (!(wordData & 0x8000)) {
+ if ( EM4x05ReadWord_ext(15, pwd, usePwd, &wordData) != 1 ) {
+ //failed
+ return 0;
+ }
+ }
+ if (!(wordData & 0x8000)) {
+ //something went wrong
+ return 0;
+ }
+ printEM4x05ProtectionBits(wordData);
+
return 1;
}
projects / proxmark3-svn / blobdiff