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Update cmdlft55xx.c

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fix toggle of ST INV and Q5/T55
fix lf t55xx brute for all downlink modes
fix lf t55xx chk -f <password file>
fix lf t55xx chk for all downlink modes
This commit is contained in:
mwalker33 2021-03-08 13:40:06 +11:00
parent 1614d920b2
commit 0a3c05c02c
1 changed files with 20 additions and 18 deletions
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38
client/src/cmdlft55xx.c
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@ -526,16 +526,18 @@ static int CmdT55xxSetConfig(const char *Cmd) {
}
// validate user specific T5555 / Q5
config.Q5 = use_q5;
config.Q5 = use_q5 ^ config.Q5;
// validate user specific sequence terminator
config.ST = use_st;
if (use_st) {
if (use_st) {
config.ST ^= use_st;
config.block0 = ((config.block0 & ~(0x8)) | (config.ST << 3));
}
// validate user specific invert
config.inverted = invert;
// In theory this should also be set in the config block 0; butit requries the extend mode config, which will change other things.
// as such, leave in user config for decoding the data until a full fix can be added.
config.inverted = invert ^ config.inverted ;
// validate user specific downlink mode
uint8_t downlink_mode = config.downlink_mode;
@ -3052,7 +3054,7 @@ static int CmdT55xxChkPwds(const char *Cmd) {
}
uint8_t downlink_mode = config.downlink_mode;
if (r0)
if (r0 || ra) // ra should start downlink mode ad fixed bit to loop through all modes correctly
downlink_mode = refFixedBit;
else if (r1)
downlink_mode = refLongLeading;
@ -3062,7 +3064,9 @@ static int CmdT55xxChkPwds(const char *Cmd) {
downlink_mode = ref1of4;
bool use_pwd_file = false;
if (strlen(filename) == 0) {
if (strlen(filename) != 0)
use_pwd_file = true;
else if (strlen(filename) == 0) {
snprintf(filename, sizeof(filename), "t55xx_default_pwds");
use_pwd_file = true;
}
@ -3181,18 +3185,14 @@ static int CmdT55xxChkPwds(const char *Cmd) {
PrintAndLogEx(INFO, "testing %08"PRIX32, curr_password);
for (dl_mode = downlink_mode; dl_mode <= 3; dl_mode++) {
if (!AcquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, true, curr_password, dl_mode)) {
continue;
if (AcquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, true, curr_password, dl_mode)) {
found = t55xxTryDetectModulationEx(dl_mode, T55XX_PrintConfig, 0, curr_password);
if (found) {
PrintAndLogEx(SUCCESS, "found valid password: [ " _GREEN_("%08"PRIX32) " ]", curr_password);
break;
}
}
found = t55xxTryDetectModulationEx(dl_mode, T55XX_PrintConfig, 0, curr_password);
if (found) {
PrintAndLogEx(SUCCESS, "found valid password: [ " _GREEN_("%08"PRIX32) " ]", curr_password);
break;
}
if (ra == false) // Exit loop if not trying all downlink modes
if (!ra) // Exit loop if not trying all downlink modes
break;
}
}
@ -3258,7 +3258,7 @@ static int CmdT55xxBruteForce(const char *Cmd) {
}
uint8_t downlink_mode = config.downlink_mode;
if (r0)
if (r0 || ra) // if try all (ra) then start at fixed bit for correct try all
downlink_mode = refFixedBit;
else if (r1)
downlink_mode = refLongLeading;
@ -3266,6 +3266,8 @@ static int CmdT55xxBruteForce(const char *Cmd) {
downlink_mode = refLeading0;
else if (r3)
downlink_mode = ref1of4;
else // no downlink mode so try default fixedbit only (as most likly)
downlink_mode = refFixedBit;
uint32_t curr = 0;
uint8_t found = 0; // > 0 if found xx1 xx downlink needed, 1 found