#include "cmdparser.h"
#include "cmddata.h"
#include "cmdlf.h"
+#include "cmdmain.h"
#include "cmdlfem4x.h"
#include "lfdemod.h"
+
char *global_em410xId;
static int CmdHelp(const char *Cmd);
int CmdEMdemodASK(const char *Cmd)
{
char cmdp = param_getchar(Cmd, 0);
- int findone = (cmdp == '1') ? 1 : 0;
+ int findone = (cmdp == '1') ? 1 : 0;
UsbCommand c={CMD_EM410X_DEMOD};
c.arg[0]=findone;
SendCommand(&c);
uint32_t hi=0;
uint64_t lo=0;
- if(!AskEm410xDemod("", &hi, &lo)) return 0;
+ if(!AskEm410xDemod("", &hi, &lo, false)) return 0;
PrintAndLog("EM410x pattern found: ");
printEM410x(hi, lo);
if (hi){
return 0;
}
char id[12] = {0x00};
- sprintf(id, "%010llx",lo);
+ sprintf(id, "%010"PRIx64,lo);
global_em410xId = id;
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 410xsim <UID>");
- PrintAndLog("");
- PrintAndLog(" sample: lf em4x 410xsim 0F0368568B");
- return 0;
- }
+ if (cmdp == 'h' || cmdp == 'H') return usage_lf_em410x_sim();
+ /* clock is 64 in EM410x tags */
+ uint8_t clock = 64;
if (param_gethex(Cmd, 0, uid, 10)) {
PrintAndLog("UID must include 10 HEX symbols");
return 0;
}
-
- PrintAndLog("Starting simulating UID %02X%02X%02X%02X%02X", uid[0],uid[1],uid[2],uid[3],uid[4]);
+ param_getdec(Cmd,1, &clock);
+
+ PrintAndLog("Starting simulating UID %02X%02X%02X%02X%02X clock: %d", uid[0],uid[1],uid[2],uid[3],uid[4],clock);
PrintAndLog("Press pm3-button to about simulation");
- /* clock is 64 in EM410x tags */
- int clock = 64;
/* clear our graph */
ClearGraph(0);
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) {
}
// Check Clock
- if (card == 1)
- {
- // Default: 64
- if (clock == 0)
- clock = 64;
-
- // Allowed clock rates: 16, 32 and 64
- if ((clock != 16) && (clock != 32) && (clock != 64)) {
- PrintAndLog("Error! Clock rate %d not valid. Supported clock rates are 16, 32 and 64.\n", clock);
- return 0;
- }
- }
- else if (clock != 0)
- {
- PrintAndLog("Error! Clock rate is only supported on T55x7 tags.\n");
+ // Default: 64
+ if (clock == 0)
+ clock = 64;
+
+ // Allowed clock rates: 16, 32, 40 and 64
+ if ((clock != 16) && (clock != 32) && (clock != 64) && (clock != 40)) {
+ PrintAndLog("Error! Clock rate %d not valid. Supported clock rates are 16, 32, 40 and 64.\n", clock);
return 0;
}
// provide for backwards-compatibility for older firmware, and to avoid
// having to add another argument to CMD_EM410X_WRITE_TAG, we just store
// the clock rate in bits 8-15 of the card value
- card = (card & 0xFF) | (((uint64_t)clock << 8) & 0xFF00);
- }
- else if (card == 0)
+ card = (card & 0xFF) | ((clock << 8) & 0xFF00);
+ } else if (card == 0) {
PrintAndLog("Writing %s tag with UID 0x%010" PRIx64, "T5555", id, clock);
- else {
+ card = (card & 0xFF) | ((clock << 8) & 0xFF00);
+ } else {
PrintAndLog("Error! Bad card type selected.\n");
return 0;
}
return 0;
}
+//**************** Start of EM4x50 Code ************************
bool EM_EndParityTest(uint8_t *BitStream, size_t size, uint8_t rows, uint8_t cols, uint8_t pType)
{
if (rows*cols>size) return false;
uint8_t colP=0;
- //assume last row is a parity row and do not test
+ //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];
code = code<<8 | bytebits_to_byte(BitStream+27,8);
if (verbose || g_debugMode){
for (uint8_t i = 0; i<5; i++){
- if (i == 4) PrintAndLog("");
+ if (i == 4) PrintAndLog(""); //parity byte spacer
PrintAndLog("%d%d%d%d%d%d%d%d %d -> 0x%02x",
BitStream[i*9],
BitStream[i*9+1],
else
PrintAndLog("Parity Failed");
}
- //PrintAndLog("Code: %08x",code);
return code;
}
-/* Read the transmitted data of an EM4x50 tag
+/* Read the transmitted data of an EM4x50 tag from the graphbuffer
* Format:
*
* XXXXXXXX [row parity bit (even)] <- 8 bits plus parity
* is stored in the blocks defined in the control word First and Last
* Word Read values. UID is stored in block 32.
*/
+ //completed by Marshmellow
int EM4x50Read(const char *Cmd, bool verbose)
{
- uint8_t fndClk[]={0,8,16,32,40,50,64};
+ uint8_t fndClk[] = {8,16,32,40,50,64,128};
int clk = 0;
int invert = 0;
- sscanf(Cmd, "%i %i", &clk, &invert);
int tol = 0;
int i, j, startblock, skip, block, start, end, low, high, minClk;
- bool complete= false;
+ bool complete = false;
int tmpbuff[MAX_GRAPH_TRACE_LEN / 64];
- save_restoreGB(1);
uint32_t Code[6];
char tmp[6];
-
char tmp2[20];
- high= low= 0;
+ int phaseoff;
+ high = low = 0;
memset(tmpbuff, 0, MAX_GRAPH_TRACE_LEN / 64);
-
+
+ // get user entry if any
+ sscanf(Cmd, "%i %i", &clk, &invert);
+
+ // save GraphBuffer - to restore it later
+ save_restoreGB(1);
+
// first get high and low values
- for (i = 0; i < GraphTraceLen; i++)
- {
+ for (i = 0; i < GraphTraceLen; i++) {
if (GraphBuffer[i] > high)
high = GraphBuffer[i];
else if (GraphBuffer[i] < low)
low = GraphBuffer[i];
}
- // populate a buffer with pulse lengths
- i= 0;
- j= 0;
- minClk= 255;
- while (i < GraphTraceLen)
- {
+ i = 0;
+ j = 0;
+ minClk = 255;
+ // get to first full low to prime loop and skip incomplete first pulse
+ while ((GraphBuffer[i] < high) && (i < GraphTraceLen))
+ ++i;
+ while ((GraphBuffer[i] > low) && (i < GraphTraceLen))
+ ++i;
+ skip = i;
+
+ // populate tmpbuff buffer with pulse lengths
+ while (i < GraphTraceLen) {
// measure from low to low
- while ((GraphBuffer[i] > low) && (i<GraphTraceLen))
+ while ((GraphBuffer[i] > low) && (i < GraphTraceLen))
++i;
start= i;
- while ((GraphBuffer[i] < high) && (i<GraphTraceLen))
+ while ((GraphBuffer[i] < high) && (i < GraphTraceLen))
++i;
- while ((GraphBuffer[i] > low) && (i<GraphTraceLen))
+ while ((GraphBuffer[i] > low) && (i < GraphTraceLen))
++i;
if (j>=(MAX_GRAPH_TRACE_LEN/64)) {
break;
}
tmpbuff[j++]= i - start;
- if (i-start < minClk) minClk = i-start;
+ if (i-start < minClk && i < GraphTraceLen) {
+ minClk = i - start;
+ }
}
// set clock
- if (!clk){
+ if (!clk) {
for (uint8_t clkCnt = 0; clkCnt<7; clkCnt++) {
tol = fndClk[clkCnt]/8;
- if (fndClk[clkCnt]-tol >= minClk) {
+ if (minClk >= fndClk[clkCnt]-tol && minClk <= fndClk[clkCnt]+1) {
clk=fndClk[clkCnt];
break;
}
}
+ if (!clk) return 0;
} else tol = clk/8;
// look for data start - should be 2 pairs of LW (pulses of clk*3,clk*2)
- start= -1;
- skip= 0;
- for (i= 0; i < j - 4 ; ++i)
- {
+ start = -1;
+ for (i= 0; i < j - 4 ; ++i) {
skip += tmpbuff[i];
- if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol)
- if (tmpbuff[i+1] >= clk*2-tol && tmpbuff[i+1] <= clk*2+tol)
- if (tmpbuff[i+2] >= clk*3-tol && tmpbuff[i+2] <= clk*3+tol)
- if (tmpbuff[i+3] >= clk-tol)
+ if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol) //3 clocks
+ if (tmpbuff[i+1] >= clk*2-tol && tmpbuff[i+1] <= clk*2+tol) //2 clocks
+ if (tmpbuff[i+2] >= clk*3-tol && tmpbuff[i+2] <= clk*3+tol) //3 clocks
+ if (tmpbuff[i+3] >= clk-tol) //1.5 to 2 clocks - depends on bit following
{
start= i + 4;
break;
}
}
- startblock= i + 4;
+ startblock = i + 4;
// skip over the remainder of LW
- skip += tmpbuff[i+1] + tmpbuff[i+2] + clk + clk/8;
-
- int phaseoff = tmpbuff[i+3]-clk;
-
+ skip += tmpbuff[i+1] + tmpbuff[i+2] + clk;
+ if (tmpbuff[i+3]>clk)
+ phaseoff = tmpbuff[i+3]-clk;
+ else
+ phaseoff = 0;
// now do it again to find the end
end = skip;
- for (i += 3; i < j - 4 ; ++i)
- {
+ for (i += 3; i < j - 4 ; ++i) {
end += tmpbuff[i];
- if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3 + tol)
- if (tmpbuff[i+1] >= clk*2-tol && tmpbuff[i+1] <= clk*2 + tol)
- if (tmpbuff[i+2] >= clk*3-tol && tmpbuff[i+2] <= clk*3 + tol)
- if (tmpbuff[i+3] >= clk-tol)
+ if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol) //3 clocks
+ if (tmpbuff[i+1] >= clk*2-tol && tmpbuff[i+1] <= clk*2+tol) //2 clocks
+ if (tmpbuff[i+2] >= clk*3-tol && tmpbuff[i+2] <= clk*3+tol) //3 clocks
+ if (tmpbuff[i+3] >= clk-tol) //1.5 to 2 clocks - depends on bit following
{
complete= true;
break;
// report back
if (verbose || g_debugMode) {
if (start >= 0) {
- PrintAndLog("\nNote: should print 45 bits then 0177 (end of block)");
- PrintAndLog(" for each block");
- PrintAndLog(" Also, sometimes the demod gets out of sync and ");
- PrintAndLog(" inverts the output - when this happens the 0177");
- PrintAndLog(" will be 3 extra 1's at the end");
- PrintAndLog(" 'data askedge' command may fix that");
+ PrintAndLog("\nNote: one block = 50 bits (32 data, 12 parity, 6 marker)");
} else {
- PrintAndLog("No data found!");
+ PrintAndLog("No data found!, clock tried:%d",clk);
PrintAndLog("Try again with more samples.");
+ PrintAndLog(" or after a 'data askedge' command to clean up the read");
return 0;
}
- if (!complete)
- {
- PrintAndLog("*** Warning!");
- PrintAndLog("Partial data - no end found!");
- PrintAndLog("Try again with more samples.");
- }
} else if (start < 0) return 0;
- start=skip;
+ start = skip;
snprintf(tmp2, sizeof(tmp2),"%d %d 1000 %d", clk, invert, clk*47);
// get rid of leading crap
- snprintf(tmp, sizeof(tmp),"%i",skip);
+ snprintf(tmp, sizeof(tmp), "%i", skip);
CmdLtrim(tmp);
bool pTest;
- bool AllPTest=true;
+ bool AllPTest = true;
// now work through remaining buffer printing out data blocks
block = 0;
i = startblock;
- while (block < 6)
- {
+ while (block < 6) {
if (verbose || g_debugMode) PrintAndLog("\nBlock %i:", block);
skip = phaseoff;
// look for LW before start of next block
- for ( ; i < j - 4 ; ++i)
- {
+ for ( ; i < j - 4 ; ++i) {
skip += tmpbuff[i];
if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol)
if (tmpbuff[i+1] >= clk-tol)
break;
}
+ if (i >= j-4) break; //next LW not found
skip += clk;
- phaseoff = tmpbuff[i+1]-clk;
+ if (tmpbuff[i+1]>clk)
+ phaseoff = tmpbuff[i+1]-clk;
+ else
+ phaseoff = 0;
i += 2;
- if (ASKmanDemod(tmp2, false, false)<1) return 0;
+ if (ASKDemod(tmp2, false, false, 1) < 1) {
+ save_restoreGB(0);
+ return 0;
+ }
//set DemodBufferLen to just one block
DemodBufferLen = skip/clk;
//test parities
pTest &= EM_EndParityTest(DemodBuffer,DemodBufferLen,5,9,0);
AllPTest &= pTest;
//get output
- Code[block]=OutputEM4x50_Block(DemodBuffer,DemodBufferLen,verbose, pTest);
- if (g_debugMode) PrintAndLog("\nskipping %d samples, bits:%d",start, skip/clk);
+ Code[block] = OutputEM4x50_Block(DemodBuffer,DemodBufferLen,verbose, pTest);
+ if (g_debugMode) PrintAndLog("\nskipping %d samples, bits:%d", skip, skip/clk);
//skip to start of next block
snprintf(tmp,sizeof(tmp),"%i",skip);
CmdLtrim(tmp);
block++;
- if (i>=end) break; //in case chip doesn't output 6 blocks
+ if (i >= end) break; //in case chip doesn't output 6 blocks
}
//print full code:
if (verbose || g_debugMode || AllPTest){
- PrintAndLog("Found data at sample: %i - using clock: %i",skip,clk);
- //PrintAndLog("\nSummary:");
- end=block;
- for (block=0; block<end; block++){
+ if (!complete) {
+ PrintAndLog("*** Warning!");
+ PrintAndLog("Partial data - no end found!");
+ PrintAndLog("Try again with more samples.");
+ }
+ PrintAndLog("Found data at sample: %i - using clock: %i", start, clk);
+ end = block;
+ for (block=0; block < end; block++){
PrintAndLog("Block %d: %08x",block,Code[block]);
}
- if (AllPTest)
+ if (AllPTest) {
PrintAndLog("Parities Passed");
- else
+ } else {
PrintAndLog("Parities Failed");
+ PrintAndLog("Try cleaning the read samples with 'data askedge'");
+ }
}
//restore GraphBuffer
return EM4x50Read(Cmd, true);
}
-int CmdReadWord(const char *Cmd)
-{
- int Word = -1; //default to invalid word
- UsbCommand c;
-
- sscanf(Cmd, "%d", &Word);
-
- if ( (Word > 15) | (Word < 0) ) {
- PrintAndLog("Word must be between 0 and 15");
- return 1;
+//**************** Start of EM4x05/EM4x69 Code ************************
+int usage_lf_em_read(void) {
+ PrintAndLog("Read EM4x05/EM4x69. Tag must be on antenna. ");
+ PrintAndLog("");
+ PrintAndLog("Usage: lf em 4x05readword [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 4x05readword 1");
+ PrintAndLog(" lf em 4x05readword 1 11223344");
+ return 0;
+}
+
+// for command responses from em4x05 or em4x69
+// download samples from device and copy them to the Graphbuffer
+bool downloadSamplesEM() {
+ // 8 bit preamble + 32 bit word response (max clock (128) * 40bits = 5120 samples)
+ uint8_t got[6000];
+ GetFromBigBuf(got, sizeof(got), 0);
+ if ( !WaitForResponseTimeout(CMD_ACK, NULL, 4000) ) {
+ PrintAndLog("command execution time out");
+ return false;
}
-
- PrintAndLog("Reading word %d", Word);
-
- c.cmd = CMD_EM4X_READ_WORD;
- c.d.asBytes[0] = 0x0; //Normal mode
- c.arg[0] = 0;
- c.arg[1] = Word;
- c.arg[2] = 0;
+ setGraphBuf(got, sizeof(got));
+ return true;
+}
+
+bool EM4x05testDemodReadData(uint32_t *word, bool readCmd) {
+ // 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 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 this is a readword command, get the read bytes and test the parities
+ if (readCmd) {
+ if (!EM_EndParityTest(DemodBuffer + startIdx + sizeof(preamble), 45, 5, 9, 0)) {
+ if (g_debugMode) PrintAndLog("DEBUG: Error - End Parity check failed");
+ return false;
+ }
+ // 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, 32, 0);
+ *word = bytebits_to_byteLSBF(DemodBuffer, 32);
+ }
+ return true;
+}
+
+// FSK, PSK, ASK/MANCHESTER, ASK/BIPHASE, ASK/DIPHASE
+// should cover 90% of known used configs
+// the rest will need to be manually demoded for now...
+int demodEM4x05resp(uint32_t *word, bool readCmd) {
+ int ans = 0;
+
+ // test for FSK wave (easiest to 99% ID)
+ if (GetFskClock("", false, false)) {
+ //valid fsk clocks found
+ ans = FSKrawDemod("0 0", false);
+ if (!ans) {
+ if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305: FSK Demod failed, ans: %d", ans);
+ } else {
+ if (EM4x05testDemodReadData(word, readCmd)) {
+ return 1;
+ }
+ }
+ }
+ // PSK clocks should be easy to detect ( but difficult to demod a non-repeating pattern... )
+ ans = GetPskClock("", false, false);
+ if (ans>0) {
+ //try psk1
+ ans = PSKDemod("0 0 6", false);
+ if (!ans) {
+ if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305: PSK1 Demod failed, ans: %d", ans);
+ } else {
+ if (EM4x05testDemodReadData(word, readCmd)) {
+ return 1;
+ } else {
+ //try psk2
+ psk1TOpsk2(DemodBuffer, DemodBufferLen);
+ if (EM4x05testDemodReadData(word, readCmd)) {
+ return 1;
+ }
+ }
+ //try psk1 inverted
+ ans = PSKDemod("0 1 6", false);
+ if (!ans) {
+ if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305: PSK1 Demod failed, ans: %d", ans);
+ } else {
+ if (EM4x05testDemodReadData(word, readCmd)) {
+ return 1;
+ } else {
+ //try psk2
+ psk1TOpsk2(DemodBuffer, DemodBufferLen);
+ if (EM4x05testDemodReadData(word, readCmd)) {
+ return 1;
+ }
+ }
+ }
+ }
+ }
+
+ // manchester is more common than biphase... try first
+ bool stcheck = false;
+ // try manchester - NOTE: ST only applies to T55x7 tags.
+ ans = ASKDemod_ext("0,0,1", false, false, 1, &stcheck);
+ if (!ans) {
+ if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305: ASK/Manchester Demod failed, ans: %d", ans);
+ } else {
+ if (EM4x05testDemodReadData(word, readCmd)) {
+ return 1;
+ }
+ }
+
+ //try biphase
+ ans = ASKbiphaseDemod("0 0 1", false);
+ if (!ans) {
+ if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305: ASK/biphase Demod failed, ans: %d", ans);
+ } else {
+ if (EM4x05testDemodReadData(word, readCmd)) {
+ return 1;
+ }
+ }
+
+ //try diphase (differential biphase or inverted)
+ ans = ASKbiphaseDemod("0 1 1", false);
+ if (!ans) {
+ if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305: ASK/biphase Demod failed, ans: %d", ans);
+ } else {
+ if (EM4x05testDemodReadData(word, readCmd)) {
+ return 1;
+ }
+ }
+
+ return -1;
+}
+
+int EM4x05ReadWord_ext(uint8_t addr, uint32_t pwd, bool usePwd, uint32_t *wordData) {
+ UsbCommand c = {CMD_EM4X_READ_WORD, {addr, pwd, usePwd}};
+ clearCommandBuffer();
SendCommand(&c);
- return 0;
+ 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 not found");
+ return -1;
+ }
+ //attempt demod:
+ return demodEM4x05resp(wordData, true);
}
-int CmdReadWordPWD(const char *Cmd)
-{
- int Word = -1; //default to invalid word
- int Password = 0xFFFFFFFF; //default to blank password
- UsbCommand c;
-
- sscanf(Cmd, "%d %x", &Word, &Password);
+int EM4x05ReadWord(uint8_t addr, uint32_t pwd, bool usePwd) {
+ uint32_t wordData = 0;
+ int success = EM4x05ReadWord_ext(addr, pwd, usePwd, &wordData);
+ if (success == 1)
+ PrintAndLog("%s Address %02d | %08X", (addr>13) ? "Lock":" Got",addr,wordData);
+ else
+ PrintAndLog("Read Address %02d | failed",addr);
+
+ return success;
+}
+
+int CmdEM4x05ReadWord(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_em_read();
+
+ addr = param_get8ex(Cmd, 0, 50, 10);
+ // for now use default input of 1 as invalid (unlikely 1 will be a valid password...)
+ pwd = param_get32ex(Cmd, 1, 1, 16);
- if ( (Word > 15) | (Word < 0) ) {
- PrintAndLog("Word must be between 0 and 15");
+ 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);
+ }
+
+ return EM4x05ReadWord(addr, pwd, usePwd);
+}
+
+int usage_lf_em_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 CmdEM4x05dump(const char *Cmd) {
+ uint8_t addr = 0;
+ uint32_t pwd;
+ bool usePwd = false;
+ uint8_t ctmp = param_getchar(Cmd, 0);
+ if ( ctmp == 'H' || ctmp == 'h' ) return usage_lf_em_dump();
+
+ // for now use default input of 1 as invalid (unlikely 1 will be a valid password...)
+ pwd = param_get32ex(Cmd, 0, 1, 16);
- PrintAndLog("Reading word %d with password %08X", Word, Password);
-
- c.cmd = CMD_EM4X_READ_WORD;
- c.d.asBytes[0] = 0x1; //Password mode
- c.arg[0] = 0;
- c.arg[1] = Word;
- c.arg[2] = Password;
- SendCommand(&c);
+ if ( pwd != 1 ) {
+ usePwd = true;
+ }
+ int success = 1;
+ for (; addr < 16; addr++) {
+ if (addr == 2) {
+ if (usePwd) {
+ PrintAndLog(" PWD Address %02u | %08X",addr,pwd);
+ } else {
+ PrintAndLog(" PWD Address 02 | cannot read");
+ }
+ } else {
+ success &= EM4x05ReadWord(addr, pwd, usePwd);
+ }
+ }
+
+ return success;
+}
+
+
+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("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 4x05writeword 1");
+ PrintAndLog(" lf em 4x05writeword 1 deadc0de 11223344");
return 0;
}
-int CmdWriteWord(const char *Cmd)
-{
- int Word = 16; //default to invalid block
- int Data = 0xFFFFFFFF; //default to blank data
- UsbCommand c;
+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);
- sscanf(Cmd, "%x %d", &Data, &Word);
- if (Word > 15) {
- PrintAndLog("Word must be between 0 and 15");
+ 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);
+ }
- PrintAndLog("Writing word %d with data %08X", Word, Data);
+ uint16_t flag = (addr << 8 ) | usePwd;
- c.cmd = CMD_EM4X_WRITE_WORD;
- c.d.asBytes[0] = 0x0; //Normal mode
- c.arg[0] = Data;
- c.arg[1] = Word;
- c.arg[2] = 0;
+ UsbCommand c = {CMD_EM4X_WRITE_WORD, {flag, data, pwd}};
+ clearCommandBuffer();
SendCommand(&c);
- return 0;
+ 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!
+ //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;
}
-int CmdWriteWordPWD(const char *Cmd)
-{
- int Word = 16; //default to invalid word
- int Data = 0xFFFFFFFF; //default to blank data
- int Password = 0xFFFFFFFF; //default to blank password
- UsbCommand c;
-
- sscanf(Cmd, "%x %d %x", &Data, &Word, &Password);
+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) {
+ if (EM4x05ReadWord_ext(0,0,false,wordData) == 1) {
+ return true;
+ }
+ return false;
+}
+
+int CmdEM4x05info(const char *Cmd) {
+ //uint8_t addr = 0;
+ 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_em_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 (Word > 15) {
- PrintAndLog("Word must be between 0 and 15");
- return 1;
+ if ( pwd != 1 ) {
+ usePwd = true;
}
+
+ // read word 0 (chip info)
+ // block 0 can be read even without a password.
+ if ( !EM4x05Block0Test(&wordData) )
+ return -1;
- PrintAndLog("Writing word %d with data %08X and password %08X", Word, Data, Password);
+ uint8_t chipType = (wordData >> 1) & 0xF;
+ uint8_t cap = (wordData >> 5) & 3;
+ uint16_t custCode = (wordData >> 9) & 0x3FF;
- c.cmd = CMD_EM4X_WRITE_WORD;
- c.d.asBytes[0] = 0x1; //Password mode
- c.arg[0] = Data;
- c.arg[1] = Word;
- c.arg[2] = Password;
- SendCommand(&c);
- return 0;
+ // 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 ) {
+ //failed
+ 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;
}
+
static command_t CommandTable[] =
{
{"help", CmdHelp, 1, "This help"},
- {"em410xdemod", CmdEMdemodASK, 0, "[findone] -- Extract ID from EM410x tag (option 0 for continuous loop, 1 for only 1 tag)"},
- {"em410xread", CmdEM410xRead, 1, "[clock rate] -- Extract ID from EM410x tag"},
- {"em410xsim", CmdEM410xSim, 0, "<UID> -- Simulate EM410x tag"},
- {"em410xwatch", CmdEM410xWatch, 0, "['h'] -- Watches for EM410x 125/134 kHz tags (option 'h' for 134)"},
- {"em410xspoof", CmdEM410xWatchnSpoof, 0, "['h'] --- Watches for EM410x 125/134 kHz tags, and replays them. (option 'h' for 134)" },
- {"em410xwrite", CmdEM410xWrite, 1, "<UID> <'0' T5555> <'1' T55x7> [clock rate] -- Write EM410x UID to T5555(Q5) or T55x7 tag, optionally setting clock rate"},
- {"em4x50read", CmdEM4x50Read, 1, "Extract data from EM4x50 tag"},
- {"readword", CmdReadWord, 1, "<Word> -- Read EM4xxx word data"},
- {"readwordPWD", CmdReadWordPWD, 1, "<Word> <Password> -- Read EM4xxx word data in password mode"},
- {"writeword", CmdWriteWord, 1, "<Data> <Word> -- Write EM4xxx word data"},
- {"writewordPWD", CmdWriteWordPWD, 1, "<Data> <Word> <Password> -- Write EM4xxx word data in password mode"},
+ {"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> [clock rate] -- 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, "(pwd) -- Read EM4x05/EM4x69 all word data"},
+ {"4x05info", CmdEM4x05info, 0, "(pwd) -- Get info from EM4x05/EM4x69 tag"},
+ {"4x05readword", CmdEM4x05ReadWord, 0, "<Word> (pwd) -- Read EM4x05/EM4x69 word data"},
+ {"4x05writeword", CmdEM4x05WriteWord, 0, "<Word> <data> (pwd) -- Write EM4x05/EM4x69 word data"},
+ {"4x50read", CmdEM4x50Read, 1, "demod data from EM4x50 tag from the graph buffer"},
{NULL, NULL, 0, NULL}
};
projects / proxmark3-svn / blobdiff