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send raw data and compose raw data from id

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This commit is contained in:
merlokk 2022-07-03 23:21:20 +03:00
commit d2e671b7d1
1 changed files with 39 additions and 10 deletions
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49
client/src/cmdhftexkom.c
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@ -554,12 +554,16 @@ static int CmdHFTexkomSim(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "hf texkom sim",
"Simulate a texkom tag",
"hf texkom sim");
"hf texkom sim \r\n"
"hf texkom sim --raw FFFF638C7DC45553 -> simulate TK13 tag with id 8C7DC455\r\n"
"hf texkom sim --id 8C7DC455 -> simulate TK13 tag with id 8C7DC455");
void *argtable[] = {
arg_param_begin,
arg_lit0("v", "verbose", "Verbose work"),
arg_lit0("t", "tk17", "Use TK-17 modulation (TK-13 by default)"),
arg_lit0("t", "tk17", "Use TK-17 modulation (TK-13 by default)"),
arg_str0(NULL, "raw", "<hex 8 bytes>", "Raw data for texkom card, 8 bytes. Manual modulation select."),
arg_str0(NULL, "id", "<hex 4 bytes>", "Raw data for texkom card, 8 bytes. Manual modulation select."),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, true);
@ -570,18 +574,43 @@ static int CmdHFTexkomSim(const char *Cmd) {
if (arg_get_lit(ctx, 2))
modulation = 1; //tk-17
uint8_t rawdata[250] = {0};
int rawdatalen = 0;
CLIGetHexWithReturn(ctx, 3, rawdata, &rawdatalen);
uint8_t iddata[250] = {0};
int iddatalen = 0;
CLIGetHexWithReturn(ctx, 4, iddata, &iddatalen);
CLIParserFree(ctx);
if (rawdatalen == 0 && iddatalen == 0) {
PrintAndLogEx(ERR, "<raw data> or <id> must be specified to simulate");
return PM3_EINVARG;
}
if (iddatalen > 0 && iddatalen != 4) {
PrintAndLogEx(ERR, "<id> must be 4 bytes long instead of: %d", iddatalen);
return PM3_EINVARG;
}
if (iddatalen == 4) {
rawdata[0] = 0xff;
rawdata[1] = 0xff;
rawdata[2] = (modulation == 0) ? 0x63 : 0xca;
memcpy(&rawdata[3], iddata, 4);
rawdata[7] = (modulation == 0) ? TexcomTK13CRC(iddata) : TexcomTK17CRC(iddata);
rawdatalen = 8;
}
if (rawdatalen > 0 && rawdatalen != 8) {
PrintAndLogEx(ERR, "<raw data> must be 8 bytes long instead of: %d", rawdatalen);
return PM3_EINVARG;
}
// <texkom 8bytes><modulation 1b><timeout 4b>
uint8_t data[13] = {0};
data[0] = 0xFF;
data[1] = 0xFF;
data[2] = 0x63;
data[3] = 0x8C;
data[4] = 0x7D;
data[5] = 0xC4;
data[6] = 0x55;
data[7] = 0x53;
memcpy(data, rawdata, 8);
data[8] = modulation;
memcpy(&data[9], &cmdtimeout, 4);