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Implement half of bootup_misc_mmio()

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This commit is contained in:
Michael Scire 2018-03-02 12:16:30 -08:00
parent b3dbfd8ee0
commit e7e62ef90b
9 changed files with 151 additions and 4 deletions
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32
exosphere/src/se.c
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@ -16,6 +16,9 @@ static unsigned int (*g_se_callback)(void);
static unsigned int g_se_modulus_sizes[KEYSLOT_RSA_MAX];
static unsigned int g_se_exp_sizes[KEYSLOT_RSA_MAX];
static bool g_se_generated_vector = false;
static uint8_t g_se_stored_test_vector[0x10];
/* Initialize a SE linked list. */
void ll_init(se_ll_t *ll, void *buffer, size_t size) {
@ -71,6 +74,35 @@ void se_verify_flags_cleared(void) {
}
}
void se_generate_test_vector(void *vector) {
/* TODO: Implement real test vector generation. */
memset(vector, 0, 0x10);
}
void se_validate_stored_vector(void) {
if (!g_se_generated_vector) {
generic_panic();
}
uint8_t calc_vector[0x10];
se_generate_test_vector(calc_vector);
/* Ensure nobody's messed with the security engine while we slept. */
if (memcmp(calc_vector, g_se_stored_test_vector, 0x10) != 0) {
generic_panic();
}
}
void se_generate_stored_vector(void) {
if (g_se_generated_vector) {
generic_panic();
}
se_generate_test_vector(g_se_stored_test_vector);
g_se_generated_vector = true;
}
/* Set the flags for an AES keyslot. */
void set_aes_keyslot_flags(unsigned int keyslot, unsigned int flags) {
if (keyslot >= KEYSLOT_AES_MAX) {