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config: Cache auto-lock delay.

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Andrew Kozlik 2019-02-12 17:56:33 +01:00 committed by Pavol Rusnak
parent 0e48a1a39a
commit dc848be167
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GPG Key ID: 91F3B339B9A02A3D
2 changed files with 22 additions and 8 deletions
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28
firmware/config.c
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@ -111,12 +111,15 @@ be added to the storage u2f_counter to get the real counter value.
* This corresponds to the number of cleared bits in the U2FAREA.
*/
static bool sessionSeedCached, sessionSeedUsesPassphrase;
static uint8_t CONFIDENTIAL sessionSeed[64];
static bool sessionPassphraseCached = false;
static char CONFIDENTIAL sessionPassphrase[51];
#define autoLockDelayMsDefault (10 * 60 * 1000U) // 10 minutes
static secbool autoLockDelayMsCached = secfalse;
static uint32_t autoLockDelayMs = autoLockDelayMsDefault;
static const uint32_t CONFIG_VERSION = 10;
static const uint8_t FALSE_BYTE = '\x00';
@ -851,19 +854,29 @@ void config_setU2FCounter(uint32_t u2fcounter)
uint32_t config_getAutoLockDelayMs()
{
const uint32_t default_delay_ms = 10 * 60 * 1000U; // 10 minutes
uint32_t delay_ms = 0;
if (config_get_uint32(KEY_AUTO_LOCK_DELAY_MS, &delay_ms)) {
return delay_ms;
if (sectrue == autoLockDelayMsCached) {
return autoLockDelayMs;
}
return default_delay_ms;
if (sectrue != storage_is_unlocked()) {
return autoLockDelayMsDefault;
}
if (!config_get_uint32(KEY_AUTO_LOCK_DELAY_MS, &autoLockDelayMs)) {
autoLockDelayMs = autoLockDelayMsDefault;
}
autoLockDelayMsCached = sectrue;
return autoLockDelayMs;
}
void config_setAutoLockDelayMs(uint32_t auto_lock_delay_ms)
{
const uint32_t min_delay_ms = 10 * 1000U; // 10 seconds
auto_lock_delay_ms = MAX(auto_lock_delay_ms, min_delay_ms);
storage_set(KEY_AUTO_LOCK_DELAY_MS, &auto_lock_delay_ms, sizeof(auto_lock_delay_ms));
if (sectrue == storage_set(KEY_AUTO_LOCK_DELAY_MS, &auto_lock_delay_ms, sizeof(auto_lock_delay_ms))) {
autoLockDelayMs = auto_lock_delay_ms;
autoLockDelayMsCached = sectrue;
}
}
void config_wipe(void)
@ -872,6 +885,7 @@ void config_wipe(void)
storage_unlock(PIN_EMPTY);
random_buffer((uint8_t *)config_uuid, sizeof(config_uuid));
data2hex(config_uuid, sizeof(config_uuid), config_uuid_str);
autoLockDelayMsCached = secfalse;
storage_set(KEY_UUID, config_uuid, sizeof(config_uuid));
storage_set(KEY_VERSION, &CONFIG_VERSION, sizeof(CONFIG_VERSION));
session_clear(false);

2
vendor/trezor-storage vendored

@ -1 +1 @@
Subproject commit f05a2ff9ccb4562ba4bd8a75a3607bbf24a0c074
Subproject commit 13b256ab2c11791e0c13696a8c507787a374884f