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chg: 'hf sniff' - remake to mallc and report back size, also use NG

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iceman1001
2020-06-18 11:54:19 +02:00
parent be9a5920d8
commit e1f0f89240
3 changed files with 93 additions and 29 deletions
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50
client/src/cmdhf.c
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@@ -241,15 +241,59 @@ int CmdHFTune(const char *Cmd) {
return PM3_SUCCESS;
}
// Collects pars of u8,
// uses 16bit transfers from FPGA for speed
// Takes all available bigbuff memory
// data sample to download? Not sure what we can do with the data.
int CmdHFSniff(const char *Cmd) {
char cmdp = tolower(param_getchar(Cmd, 0));
if (cmdp == 'h') return usage_hf_sniff();
int skippairs = param_get32ex(Cmd, 0, 0, 10);
int skiptriggers = param_get32ex(Cmd, 1, 0, 10);
struct {
uint32_t samplesToSkip;
uint32_t triggersToSkip;
} PACKED params;
params.samplesToSkip = param_get32ex(Cmd, 0, 0, 10);
params.triggersToSkip = param_get32ex(Cmd, 1, 0, 10);
clearCommandBuffer();
SendCommandMIX(CMD_HF_SNIFF, skippairs, skiptriggers, 0, NULL, 0);
SendCommandNG(CMD_HF_SNIFF, (uint8_t*)&params, sizeof(params));
for (;;) {
if (kbd_enter_pressed()) {
PrintAndLogEx(INFO, "User aborted");
break;
}
PacketResponseNG resp;
if (WaitForResponseTimeout(CMD_HF_SNIFF, &resp, 4000)) {
if (resp.status == PM3_EOPABORTED) {
break;
}
if (resp.status == PM3_SUCCESS) {
uint16_t len = resp.data.asDwords[0] & 0xFFFF;
PrintAndLogEx(INFO, "HF sniff len %u bytes", len);
PrintAndLogEx(HINT, "Use `" _YELLOW_("data plot") "` to view");
PrintAndLogEx(HINT, "Use `" _YELLOW_("data save") "` to save");
// download bigbuf_malloced..
// it reservs mem from the higher range. ie we can't start from beginning idx 0.
// but from
uint32_t start = pm3_capabilities.bigbuf_size - len;
int res = getSamplesEx(start, start + len, false);
if (res != PM3_SUCCESS) {
PrintAndLogEx(WARNING, "failed to download samples to client");
return res;
}
break;
}
}
}
PrintAndLogEx(INFO, "Done.");
return PM3_SUCCESS;
}