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lf viking clone - now supports clone to EM4305/4469 (untested)

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This commit is contained in:
iceman1001 2020-11-25 15:13:32 +01:00
commit b7c0d6aa5e
4 changed files with 28 additions and 10 deletions
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26
client/src/cmdlfviking.c
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@ -88,15 +88,17 @@ static int CmdVikingClone(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "lf viking clone",
"clone a Viking AM tag to a T55x7 or Q5/T5555 tag.",
"clone a Viking AM tag to a T55x7, Q5/T5555 or EM4305/4469 tag.",
"lf viking clone --cn 01A337\n"
"lf viking clone --cn 01A337 --q5 -> encode for Q5/T5555 tag"
"lf viking clone --cn 112233 --em -> encode for EM4305/4469"
);
void *argtable[] = {
arg_param_begin,
arg_strx0(NULL, "cn", "<hex>", "8 digit hex viking card number"),
arg_lit0(NULL, "q5", "optional - specify writing to Q5/T5555 tag"),
arg_lit0(NULL, "em", "optional - specify writing to EM4305/4469 tag"),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, false);
@ -104,29 +106,41 @@ static int CmdVikingClone(const char *Cmd) {
int raw_len = 0;
uint8_t raw[4] = {0};
CLIGetHexWithReturn(ctx, 1, raw, &raw_len);
bool q5 = arg_get_lit(ctx, 2);
bool em = arg_get_lit(ctx, 3);
CLIParserFree(ctx);
uint32_t id = bytes_to_num(raw, raw_len);
if (id == 0) {
PrintAndLogEx(ERR, "Cardnumber can't be zero");
CLIParserFree(ctx);
return PM3_EINVARG;
}
bool q5 = arg_get_lit(ctx, 2);
CLIParserFree(ctx);
if (q5 && em) {
PrintAndLogEx(FAILED, "Can't specify both Q5 and EM4305 at the same time");
return PM3_EINVARG;
}
uint64_t rawID = getVikingBits(id);
struct p {
bool Q5;
bool EM;
uint8_t blocks[8];
} PACKED payload;
payload.Q5 = q5;
payload.EM = em;
num_to_bytes(rawID, 8, &payload.blocks[0]);
char cardtype[16] = {"T55x7"};
if (q5)
snprintf(cardtype, sizeof(cardtype), "Q5/T5555");
else if (em)
snprintf(cardtype, sizeof(cardtype), "EM4305/4469");
PrintAndLogEx(INFO, "Preparing to clone Viking tag on " _YELLOW_("%s") " - ID " _YELLOW_("%08X")" raw " _YELLOW_("%s")
, (q5) ? "Q5/T5555" : "T55x7"
, cardtype
, id
, sprint_hex(payload.blocks, sizeof(payload.blocks))
);
@ -228,7 +242,7 @@ uint64_t getVikingBits(uint32_t id) {
ret |= checksum;
return ret;
}
// by marshmellow
// find viking preamble 0xF200 in already demoded data
int detectViking(uint8_t *src, size_t *size) {
//make sure buffer has data