add 'lf nexwatch clone' - uses raw hex to clone to t55x7

This commit is contained in:
iceman1001 2019-09-26 21:15:38 +02:00
parent 0a967f7733
commit 4e166cfd15
2 changed files with 60 additions and 6 deletions

View file

@ -9,16 +9,33 @@
//-----------------------------------------------------------------------------
#include "cmdlfnexwatch.h"
#include <ctype.h> // tolower
#include "commonutil.h" // ARRAYLEN
#include "cmdparser.h" // command_t
#include "comms.h"
#include "ui.h"
#include "cmddata.h" // preamblesearch
#include "cmdlf.h"
#include "lfdemod.h"
#include "protocols.h" // t55xx defines
#include "cmdlft55xx.h" // clone..
static int CmdHelp(const char *Cmd);
static int usage_lf_nexwatch_clone(void) {
PrintAndLogEx(NORMAL, "clone a Nexwatch tag to a T55x7 tag.");
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "Usage: lf nexwatch clone [h] [b <raw hex>]");
PrintAndLogEx(NORMAL, "Options:");
PrintAndLogEx(NORMAL, " h : this help");
PrintAndLogEx(NORMAL, " b <raw hex> : raw hex data. 12 bytes max");
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "Examples:");
PrintAndLogEx(NORMAL, " lf nexwatch clone b 5600000000213C9F8F150C0000000000");
return PM3_SUCCESS;
}
static int CmdNexWatchDemod(const char *Cmd) {
(void)Cmd; // Cmd is not used so far
@ -37,7 +54,7 @@ static int CmdNexWatchDemod(const char *Cmd) {
// else if (idx == -3)
// PrintAndLogEx(DEBUG, "DEBUG: Error - NexWatch problem during PSK demod");
else if (idx == -4)
PrintAndLogEx(DEBUG, "DEBUG: Error - NexWatch preamble not found");
PrintAndLogEx(DEBUG, "DEBUG: Error - NexWatch preamble not found");
// else if (idx == -5)
// PrintAndLogEx(DEBUG, "DEBUG: Error - NexWatch size not correct: %d", size);
else
@ -47,7 +64,7 @@ static int CmdNexWatchDemod(const char *Cmd) {
}
setDemodBuff(DemodBuffer, size, idx + 4);
setClockGrid(g_DemodClock, g_DemodStartIdx + ((idx + 4)*g_DemodClock));
setClockGrid(g_DemodClock, g_DemodStartIdx + ((idx + 4) * g_DemodClock));
// idx = 8 + 32; // 8 = preamble, 32 = reserved bits (always 0)
@ -82,10 +99,47 @@ static int CmdNexWatchRead(const char *Cmd) {
}
static int CmdNexWatchClone(const char *Cmd) {
// 56000000 00213C9F 8F150C00 00000000
uint32_t blocks[5];
bool errors = false;
uint8_t cmdp = 0;
int datalen = 0;
while (param_getchar(Cmd, cmdp) != 0x00 && !errors) {
switch (tolower(param_getchar(Cmd, cmdp))) {
case 'h':
return usage_lf_nexwatch_clone();
case 'b': {
// skip first block, 4*4 = 16 bytes left
uint8_t rawhex[16] = {0};
int res = param_gethex_to_eol(Cmd, cmdp + 1, rawhex, sizeof(rawhex), &datalen);
if ( res != 0 )
errors = true;
for(uint8_t i = 1; i < ARRAYLEN(blocks); i++) {
blocks[i] = bytes_to_num(rawhex + ( (i - 1) * 4 ), sizeof(uint32_t));
}
cmdp += 2;
break;
}
default:
PrintAndLogEx(WARNING, "Unknown parameter '%c'", param_getchar(Cmd, cmdp));
errors = true;
break;
}
}
if (errors || cmdp == 0) return usage_lf_nexwatch_clone();
//Nexwatch - compat mode, PSK, data rate 40, 3 data blocks
blocks[0] = T55x7_MODULATION_PSK1 | T55x7_BITRATE_RF_32 | 4 << T55x7_MAXBLOCK_SHIFT;
PrintAndLogEx(INFO, "Preparing to clone NexWatch to T55x7 with raw hex");
print_blocks(blocks, ARRAYLEN(blocks));
return clone_t55xx_tag(blocks, ARRAYLEN(blocks));
// should be able to clone the raw hex.
PrintAndLogEx(INFO, " To be implemented, feel free to contribute!");
return PM3_SUCCESS;
}
static int CmdNexWatchSim(const char *Cmd) {

View file

@ -141,7 +141,7 @@ static int CmdSecurakeyClone(const char *Cmd) {
case 'h':
return usage_lf_securakey_clone();
case 'b': {
// skip first block, 3*4 =12 bytes left
// skip first block, 3*4 = 12 bytes left
uint8_t rawhex[12] = {0};
int res = param_gethex_to_eol(Cmd, cmdp + 1, rawhex, sizeof(rawhex), &datalen);
if ( res != 0 )