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LF: rework internal APIs

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This commit is contained in:
Philippe Teuwen 2020-09-28 11:50:20 +02:00
parent 74050af8c2
commit dfb7eaf061
51 changed files with 468 additions and 387 deletions
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54
client/src/cmdlfindala.c
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@ -151,25 +151,17 @@ static void decodeHeden2L(uint8_t *bits) {
// Indala 26 bit decode
// by marshmellow, martinbeier
// optional arguments - same as PSKDemod (clock & invert & maxerr)
static int CmdIndalaDemod(const char *Cmd) {
char cmdp = tolower(param_getchar(Cmd, 0));
if (cmdp == 'h') return usage_lf_indala_demod();
int ans;
if (strlen(Cmd) > 0)
ans = PSKDemod(Cmd, true);
else
ans = PSKDemod("32", true);
int demodIndalaEx(int clk, int invert, int maxErr, bool verbose) {
(void) verbose; // unused so far
int ans = PSKDemod(clk, invert, maxErr, true);
if (ans != PM3_SUCCESS) {
PrintAndLogEx(DEBUG, "DEBUG: Error - Indala can't demod signal: %d", ans);
return PM3_ESOFT;
}
uint8_t invert = 0;
uint8_t inv = 0;
size_t size = DemodBufferLen;
int idx = detectIndala(DemodBuffer, &size, &invert);
int idx = detectIndala(DemodBuffer, &size, &inv);
if (idx < 0) {
if (idx == -1)
PrintAndLogEx(DEBUG, "DEBUG: Error - Indala: not enough samples");
@ -281,6 +273,29 @@ static int CmdIndalaDemod(const char *Cmd) {
return PM3_SUCCESS;
}
int demodIndala(bool verbose) {
return demodIndalaEx(32, 0, 100, verbose);
}
static int CmdIndalaDemod(const char *Cmd) {
char cmdp = tolower(param_getchar(Cmd, 0));
if (cmdp == 'h') return usage_lf_indala_demod();
int clk = 32, invert = 0, maxErr = 100;
if (strlen(Cmd) > 0) {
sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
}
if (clk == 1) {
invert = 1;
clk = 0;
}
if (invert != 0 && invert != 1) {
PrintAndLogEx(WARNING, "Invalid value for invert: %i", invert);
return PM3_EINVARG;
}
return demodIndalaEx(clk, invert, maxErr, true);
}
// older alternative indala demodulate (has some positives and negatives)
// returns false positives more often - but runs against more sets of samples
// poor psk signal can be difficult to demod this approach might succeed when the other fails
@ -485,8 +500,15 @@ static int CmdIndalaDemodAlt(const char *Cmd) {
// this read is the "normal" read, which download lf signal and tries to demod here.
static int CmdIndalaRead(const char *Cmd) {
char cmdp = tolower(param_getchar(Cmd, 0));
if (cmdp == 'h') return usage_lf_indala_demod();
int clk = 32, invert = 0, maxErr = 100;
if (strlen(Cmd) > 0) {
sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
}
lf_read(false, 30000);
return CmdIndalaDemod(Cmd);
return demodIndalaEx(clk, invert, maxErr, true);
}
static int CmdIndalaSim(const char *Cmd) {
@ -865,7 +887,3 @@ out:
return (int) idx;
}
int demodIndala(void) {
return CmdIndalaDemod("");
}