diff options
| -rw-r--r-- | hal_internal.h | 3 | ||||
| -rw-r--r-- | rpc_misc.c | 22 |
2 files changed, 19 insertions, 6 deletions
diff --git a/hal_internal.h b/hal_internal.h index 0c38c00..bd8e97d 100644 --- a/hal_internal.h +++ b/hal_internal.h @@ -316,6 +316,9 @@ typedef struct { } hal_ks_keydb_t; +extern hal_error_t hal_set_pin_default_iterations(const hal_client_handle_t client, + const uint32_t iterations); + /* * Internal functions within the keystore implementation. Think of * these as concrete methods for the keystore API subclassed onto @@ -85,6 +85,8 @@ typedef struct { #define HAL_PIN_DEFAULT_ITERATIONS 20000 #endif +static uint32_t hal_pin_default_iterations = HAL_PIN_DEFAULT_ITERATIONS; + #ifndef HAL_STATIC_CLIENT_STATE_BLOCKS #define HAL_STATIC_CLIENT_STATE_BLOCKS 10 #endif @@ -135,7 +137,7 @@ static hal_error_t login(const hal_client_handle_t client, return err; uint8_t buf[sizeof(p->pin)]; - const uint32_t iterations = p->iterations == 0 ? HAL_PIN_DEFAULT_ITERATIONS : p->iterations; + const uint32_t iterations = p->iterations == 0 ? hal_pin_default_iterations : p->iterations; if ((err = hal_pbkdf2(NULL, hal_hash_sha256, (const uint8_t *) pin, pin_len, p->salt, sizeof(p->salt), buf, sizeof(buf), iterations)) != HAL_OK) @@ -210,11 +212,7 @@ static hal_error_t set_pin(const hal_client_handle_t client, hal_ks_pin_t p = *pp; - /* - * Another all-zeros vs all-ones disagreement between drivers. - */ - if (p.iterations == 0x00000000 || p.iterations == 0xffffffff) - p.iterations = HAL_PIN_DEFAULT_ITERATIONS; + p.iterations = hal_pin_default_iterations; if ((err = hal_get_random(NULL, p.salt, sizeof(p.salt))) != HAL_OK || (err = hal_pbkdf2(NULL, hal_hash_sha256, @@ -227,6 +225,18 @@ static hal_error_t set_pin(const hal_client_handle_t client, return HAL_OK; } +hal_error_t hal_set_pin_default_iterations(const hal_client_handle_t client, + const uint32_t iterations) +{ + if ((is_logged_in(client, HAL_USER_WHEEL) != HAL_OK) && + (is_logged_in(client, HAL_USER_SO) != HAL_OK)) + return HAL_ERROR_FORBIDDEN; + + /* should probably store this in flash somewhere */ + hal_pin_default_iterations = (iterations == 0) ? HAL_PIN_DEFAULT_ITERATIONS : iterations; + return HAL_OK; +} + const hal_rpc_misc_dispatch_t hal_rpc_local_misc_dispatch = { set_pin, login, |