BTCPrivate
/
trezor-mcu
mirror of https://github.com/BTCPrivate/trezor-mcu.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

rework pin handling

This commit is contained in:
Pavol Rusnak 2015-01-26 22:03:33 +01:00
parent 012d38a9a0
commit 40efefc571
2 changed files with 9 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
firmware/protect.c
View File

@ -145,24 +145,26 @@ bool protectPin(bool use_cached)
if (!storage.has_pin || strlen(storage.pin) == 0 || (use_cached && session_isPinCached())) { if (!storage.has_pin || strlen(storage.pin) == 0 || (use_cached && session_isPinCached())) {
return true; return true;
} }
const char *pin; uint32_t fails = storage_getPinFails();
uint32_t wait = storage_getPinFails(); if (fails) {
if (wait) { if (fails > 2) {
if (wait > 2) {
layoutDialogSwipe(DIALOG_ICON_INFO, NULL, NULL, NULL, "Wrong PIN entered", NULL, "Please wait ...", NULL, NULL, NULL); layoutDialogSwipe(DIALOG_ICON_INFO, NULL, NULL, NULL, "Wrong PIN entered", NULL, "Please wait ...", NULL, NULL, NULL);
} }
wait = (wait < 32) ? (1u << wait) : 0xFFFFFFFF; uint32_t wait;
wait = (fails < 32) ? (1u << fails) : 0xFFFFFFFF;
while (--wait > 0) { while (--wait > 0) {
delay(10000000); delay(10000000);
} }
} }
storage_increasePinFails(); storage_increasePinFails();
bool increase_failed = (fails >= storage_getPinFails());
const char *pin;
pin = requestPin(PinMatrixRequestType_PinMatrixRequestType_Current, "Please enter current PIN:"); pin = requestPin(PinMatrixRequestType_PinMatrixRequestType_Current, "Please enter current PIN:");
if (!pin) { if (!pin) {
fsm_sendFailure(FailureType_Failure_PinCancelled, "PIN Cancelled"); fsm_sendFailure(FailureType_Failure_PinCancelled, "PIN Cancelled");
return false; return false;
} }
if (storage_isPinCorrect(pin)) { if (storage_isPinCorrect(pin) && !increase_failed) {
session_cachePin(pin); session_cachePin(pin);
storage_resetPinFails(); storage_resetPinFails();
return true; return true;

1
firmware/storage.c
View File

@ -350,6 +350,7 @@ void storage_increasePinFails(void)
uint32_t storage_getPinFails(void) uint32_t storage_getPinFails(void)
{ {
storage_from_flash(STORAGE_VERSION); // reload from flash
return storage.has_pin_failed_attempts ? storage.pin_failed_attempts : 0; return storage.has_pin_failed_attempts ? storage.pin_failed_attempts : 0;
} }