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lf psksim - correct swapping with user data or demodbuffer data

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This commit is contained in:
iceman1001 2021-02-02 09:13:13 +01:00
commit edc8165576
1 changed files with 12 additions and 12 deletions
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24
client/src/cmdlf.c
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@ -1202,24 +1202,23 @@ int CmdLFpskSim(const char *Cmd) {
if (use_psk3) if (use_psk3)
psk_type = 3; psk_type = 3;
// to detect if raw_hex was supplied or of
uint8_t bs[256] = {0x00}; // No args
int bs_len = hextobinarray((char *)bs, raw); if (raw_len == 0 && DemodBufferLen == 0) {
if (bs_len == 0) { PrintAndLogEx(ERR, "No user supplied nor any data to found inside Demodbuffer");
PrintAndLogEx(ERR, "Failed to convert to binary string array");
return PM3_EINVARG; return PM3_EINVARG;
} }
// No args
//if (DemodBufferLen == 0)
// errors = true;
uint8_t bs[256] = {0x00};
int bs_len = hextobinarray((char *)bs, raw);
if (bs_len == 0) { if (bs_len == 0) {
// Using data from DemodBuffer // Using data from DemodBuffer
// might be able to autodetect FC and clock from Graphbuffer if using demod buffer // might be able to autodetect FC and clock from Graphbuffer if using demod buffer
// will need carrier, clock, and bitstream // will need carrier, clock, and bitstream
PrintAndLogEx(INFO, "Getting Clocks"); PrintAndLogEx(INFO, "No user supplied data, using Demodbuffer...");
int res = 0; int res = 0;
if (clk == 0) { if (clk == 0) {
@ -1239,29 +1238,30 @@ int CmdLFpskSim(const char *Cmd) {
carrier = (uint8_t)res; carrier = (uint8_t)res;
} }
} }
PrintAndLogEx(INFO, "Using clk: %u, carrier: %u", clk, carrier);
PrintAndLogEx(DEBUG, "Detected FC/%u, RC/%u, n %zu ", clk, carrier, DemodBufferLen);
} else { } else {
setDemodBuff(bs, bs_len, 0); setDemodBuff(bs, bs_len, 0);
} }
if (clk == 0) { if (clk == 0) {
PrintAndLogEx(INFO, "Autodetection of clock failed, falling back to FC/32"); PrintAndLogEx(DEBUG, "Autodetection of clock failed, falling back to FC/32");
clk = 32; clk = 32;
} }
if (psk_type == 2) { if (psk_type == 2) {
//need to convert psk2 to psk1 data before sim //need to convert psk2 to psk1 data before sim
psk2TOpsk1(DemodBuffer, DemodBufferLen); psk2TOpsk1(DemodBuffer, DemodBufferLen);
} else if (psk_type == 3) { } else if (psk_type == 3) {
PrintAndLogEx(WARNING, "PSK3 not yet available. Falling back to PSK1"); PrintAndLogEx(INFO, "PSK3 not yet available. Falling back to PSK1");
psk_type = 1; psk_type = 1;
} }
size_t size = DemodBufferLen; size_t size = DemodBufferLen;
if (size > (PM3_CMD_DATA_SIZE - sizeof(lf_psksim_t))) { if (size > (PM3_CMD_DATA_SIZE - sizeof(lf_psksim_t))) {
PrintAndLogEx(WARNING, "DemodBuffer too long for current implementation - length: %zu - max: %zu", size, PM3_CMD_DATA_SIZE - sizeof(lf_psksim_t)); PrintAndLogEx(WARNING, "DemodBuffer too long for current implementation - length: %zu - max: %zu", size, PM3_CMD_DATA_SIZE - sizeof(lf_psksim_t));
PrintAndLogEx(INFO, "Continuing with trimmed down data");
size = PM3_CMD_DATA_SIZE - sizeof(lf_psksim_t); size = PM3_CMD_DATA_SIZE - sizeof(lf_psksim_t);
} }