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se: Simplify oneshot execute calls

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This commit is contained in:
CTCaer 2020-06-14 03:10:04 +03:00
parent f2f995af17
commit af30904624
4 changed files with 52 additions and 28 deletions
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39
bootloader/sec/se.c
View file

@ -98,10 +98,9 @@ static int _se_execute(u32 op, void *dst, u32 dst_size, const void *src, u32 src
SE(SE_OPERATION_REG_OFFSET) = SE_OPERATION(op);
int res = 1;
if (is_oneshot)
{
res = _se_wait();
int res = _se_wait();
bpmp_mmu_maintenance(BPMP_MMU_MAINT_CLN_INV_WAY, false);
@ -109,9 +108,11 @@ static int _se_execute(u32 op, void *dst, u32 dst_size, const void *src, u32 src
free(ll_src);
if (dst)
free(ll_dst);
}
return res;
}
return 1;
}
static int _se_execute_finalize()
@ -134,6 +135,11 @@ static int _se_execute_finalize()
return res;
}
static int _se_execute_oneshot(u32 op, void *dst, u32 dst_size, const void *src, u32 src_size)
{
return _se_execute(op, dst, dst_size, src, src_size, true);
}
static int _se_execute_one_block(u32 op, void *dst, u32 dst_size, const void *src, u32 src_size)
{
if (!src || !dst)
@ -145,7 +151,7 @@ static int _se_execute_one_block(u32 op, void *dst, u32 dst_size, const void *sr
SE(SE_BLOCK_COUNT_REG_OFFSET) = 0;
memcpy(block, src, src_size);
int res = _se_execute(op, block, 0x10, block, 0x10, true);
int res = _se_execute_oneshot(op, block, 0x10, block, 0x10);
memcpy(dst, block, dst_size);
free(block);
@ -177,6 +183,11 @@ void se_key_acc_ctrl(u32 ks, u32 flags)
SE(SE_KEY_TABLE_ACCESS_LOCK_OFFSET) &= ~(1 << ks);
}
u32 se_key_acc_ctrl_get(u32 ks)
{
return SE(SE_KEY_TABLE_ACCESS_REG_OFFSET + 4 * ks);
}
void se_aes_key_set(u32 ks, void *key, u32 size)
{
u32 *data = (u32 *)key;
@ -203,7 +214,7 @@ int se_aes_unwrap_key(u32 ks_dst, u32 ks_src, const void *input)
SE(SE_BLOCK_COUNT_REG_OFFSET) = 0;
SE(SE_CRYPTO_KEYTABLE_DST_REG_OFFSET) = SE_CRYPTO_KEYTABLE_DST_KEY_INDEX(ks_dst);
return _se_execute(OP_START, NULL, 0, input, 0x10, true);
return _se_execute_oneshot(OP_START, NULL, 0, input, 0x10);
}
int se_aes_crypt_ecb(u32 ks, u32 enc, void *dst, u32 dst_size, const void *src, u32 src_size)
@ -219,7 +230,7 @@ int se_aes_crypt_ecb(u32 ks, u32 enc, void *dst, u32 dst_size, const void *src,
SE(SE_CRYPTO_REG_OFFSET) = SE_CRYPTO_KEY_INDEX(ks) | SE_CRYPTO_CORE_SEL(CORE_DECRYPT);
}
SE(SE_BLOCK_COUNT_REG_OFFSET) = (src_size >> 4) - 1;
return _se_execute(OP_START, dst, dst_size, src, src_size, true);
return _se_execute_oneshot(OP_START, dst, dst_size, src, src_size);
}
int se_aes_crypt_cbc(u32 ks, u32 enc, void *dst, u32 dst_size, const void *src, u32 src_size)
@ -237,7 +248,7 @@ int se_aes_crypt_cbc(u32 ks, u32 enc, void *dst, u32 dst_size, const void *src,
SE_CRYPTO_CORE_SEL(CORE_DECRYPT) | SE_CRYPTO_XOR_POS(XOR_BOTTOM);
}
SE(SE_BLOCK_COUNT_REG_OFFSET) = (src_size >> 4) - 1;
return _se_execute(OP_START, dst, dst_size, src, src_size, true);
return _se_execute_oneshot(OP_START, dst, dst_size, src, src_size);
}
int se_aes_crypt_block_ecb(u32 ks, u32 enc, void *dst, const void *src)
@ -259,7 +270,7 @@ int se_aes_crypt_ctr(u32 ks, void *dst, u32 dst_size, const void *src, u32 src_s
if (src_size_aligned)
{
SE(SE_BLOCK_COUNT_REG_OFFSET) = (src_size >> 4) - 1;
if (!_se_execute(OP_START, dst, dst_size, src, src_size_aligned, true))
if (!_se_execute_oneshot(OP_START, dst, dst_size, src, src_size_aligned))
return 0;
}
@ -419,7 +430,7 @@ int se_gen_prng128(void *dst)
SE(SE_BLOCK_COUNT_REG_OFFSET) = (16 >> 4) - 1;
// Trigger the operation.
return _se_execute(OP_START, dst, 16, NULL, 0, true);
return _se_execute_oneshot(OP_START, dst, 16, NULL, 0);
}
void se_get_aes_keys(u8 *buf, u8 *keys, u32 keysize)
@ -431,7 +442,7 @@ void se_get_aes_keys(u8 *buf, u8 *keys, u32 keysize)
SE(SE_CRYPTO_REG_OFFSET) = SE_CRYPTO_KEY_INDEX(0) | SE_CRYPTO_CORE_SEL(CORE_ENCRYPT) | SE_CRYPTO_INPUT_SEL(INPUT_RANDOM);
SE(SE_RNG_CONFIG_REG_OFFSET) = SE_RNG_CONFIG_SRC(RNG_SRC_ENTROPY) | SE_RNG_CONFIG_MODE(RNG_MODE_FORCE_RESEED);
SE(SE_CRYPTO_LAST_BLOCK) = 0;
_se_execute(OP_START, NULL, 0, NULL, 0, true);
_se_execute_oneshot(OP_START, NULL, 0, NULL, 0);
// Save AES keys.
SE(SE_CONFIG_REG_OFFSET) = SE_CONFIG_ENC_MODE(MODE_KEY128) | SE_CONFIG_ENC_ALG(ALG_AES_ENC) | SE_CONFIG_DST(DST_MEMORY);
@ -442,7 +453,7 @@ void se_get_aes_keys(u8 *buf, u8 *keys, u32 keysize)
(i << SE_KEY_INDEX_SHIFT) | SE_CONTEXT_SAVE_WORD_QUAD(KEYS_0_3);
SE(SE_CRYPTO_LAST_BLOCK) = 0;
_se_execute(OP_CTX_SAVE, aligned_buf, 0x10, NULL, 0, true);
_se_execute_oneshot(OP_CTX_SAVE, aligned_buf, 0x10, NULL, 0);
memcpy(keys + i * keysize, aligned_buf, 0x10);
if (keysize > 0x10)
@ -451,7 +462,7 @@ void se_get_aes_keys(u8 *buf, u8 *keys, u32 keysize)
(i << SE_KEY_INDEX_SHIFT) | SE_CONTEXT_SAVE_WORD_QUAD(KEYS_4_7);
SE(SE_CRYPTO_LAST_BLOCK) = 0;
_se_execute(OP_CTX_SAVE, aligned_buf, 0x10, NULL, 0, true);
_se_execute_oneshot(OP_CTX_SAVE, aligned_buf, 0x10, NULL, 0);
memcpy(keys + i * keysize + 0x10, aligned_buf, 0x10);
}
}
@ -459,11 +470,11 @@ void se_get_aes_keys(u8 *buf, u8 *keys, u32 keysize)
// Save SRK to PMC secure scratches.
SE(SE_CONTEXT_SAVE_CONFIG_REG_OFFSET) = SE_CONTEXT_SAVE_SRC(SRK);
SE(0x80) = 0; // SE_CRYPTO_LAST_BLOCK
_se_execute(OP_CTX_SAVE, NULL, 0, NULL, 0, true);
_se_execute_oneshot(OP_CTX_SAVE, NULL, 0, NULL, 0);
// End context save.
SE(SE_CONFIG_REG_OFFSET) = 0;
_se_execute(OP_CTX_SAVE, NULL, 0, NULL, 0, true);
_se_execute_oneshot(OP_CTX_SAVE, NULL, 0, NULL, 0);
// Get SRK.
u32 srk[4];

1
bootloader/sec/se.h
View file

@ -21,6 +21,7 @@
void se_rsa_acc_ctrl(u32 rs, u32 flags);
void se_key_acc_ctrl(u32 ks, u32 flags);
u32 se_key_acc_ctrl_get(u32 ks);
void se_get_aes_keys(u8 *buf, u8 *keys, u32 keysize);
void se_aes_key_set(u32 ks, void *key, u32 size);
void se_aes_key_clear(u32 ks);

39
nyx/nyx_gui/sec/se.c
View file

@ -98,10 +98,9 @@ static int _se_execute(u32 op, void *dst, u32 dst_size, const void *src, u32 src
SE(SE_OPERATION_REG_OFFSET) = SE_OPERATION(op);
int res = 1;
if (is_oneshot)
{
res = _se_wait();
int res = _se_wait();
bpmp_mmu_maintenance(BPMP_MMU_MAINT_CLN_INV_WAY, false);
@ -109,9 +108,11 @@ static int _se_execute(u32 op, void *dst, u32 dst_size, const void *src, u32 src
free(ll_src);
if (dst)
free(ll_dst);
}
return res;
}
return 1;
}
static int _se_execute_finalize()
@ -134,6 +135,11 @@ static int _se_execute_finalize()
return res;
}
static int _se_execute_oneshot(u32 op, void *dst, u32 dst_size, const void *src, u32 src_size)
{
return _se_execute(op, dst, dst_size, src, src_size, true);
}
static int _se_execute_one_block(u32 op, void *dst, u32 dst_size, const void *src, u32 src_size)
{
if (!src || !dst)
@ -145,7 +151,7 @@ static int _se_execute_one_block(u32 op, void *dst, u32 dst_size, const void *sr
SE(SE_BLOCK_COUNT_REG_OFFSET) = 0;
memcpy(block, src, src_size);
int res = _se_execute(op, block, 0x10, block, 0x10, true);
int res = _se_execute_oneshot(op, block, 0x10, block, 0x10);
memcpy(dst, block, dst_size);
free(block);
@ -177,6 +183,11 @@ void se_key_acc_ctrl(u32 ks, u32 flags)
SE(SE_KEY_TABLE_ACCESS_LOCK_OFFSET) &= ~(1 << ks);
}
u32 se_key_acc_ctrl_get(u32 ks)
{
return SE(SE_KEY_TABLE_ACCESS_REG_OFFSET + 4 * ks);
}
void se_aes_key_set(u32 ks, void *key, u32 size)
{
u32 *data = (u32 *)key;
@ -203,7 +214,7 @@ int se_aes_unwrap_key(u32 ks_dst, u32 ks_src, const void *input)
SE(SE_BLOCK_COUNT_REG_OFFSET) = 0;
SE(SE_CRYPTO_KEYTABLE_DST_REG_OFFSET) = SE_CRYPTO_KEYTABLE_DST_KEY_INDEX(ks_dst);
return _se_execute(OP_START, NULL, 0, input, 0x10, true);
return _se_execute_oneshot(OP_START, NULL, 0, input, 0x10);
}
int se_aes_crypt_ecb(u32 ks, u32 enc, void *dst, u32 dst_size, const void *src, u32 src_size)
@ -219,7 +230,7 @@ int se_aes_crypt_ecb(u32 ks, u32 enc, void *dst, u32 dst_size, const void *src,
SE(SE_CRYPTO_REG_OFFSET) = SE_CRYPTO_KEY_INDEX(ks) | SE_CRYPTO_CORE_SEL(CORE_DECRYPT);
}
SE(SE_BLOCK_COUNT_REG_OFFSET) = (src_size >> 4) - 1;
return _se_execute(OP_START, dst, dst_size, src, src_size, true);
return _se_execute_oneshot(OP_START, dst, dst_size, src, src_size);
}
int se_aes_crypt_cbc(u32 ks, u32 enc, void *dst, u32 dst_size, const void *src, u32 src_size)
@ -237,7 +248,7 @@ int se_aes_crypt_cbc(u32 ks, u32 enc, void *dst, u32 dst_size, const void *src,
SE_CRYPTO_CORE_SEL(CORE_DECRYPT) | SE_CRYPTO_XOR_POS(XOR_BOTTOM);
}
SE(SE_BLOCK_COUNT_REG_OFFSET) = (src_size >> 4) - 1;
return _se_execute(OP_START, dst, dst_size, src, src_size, true);
return _se_execute_oneshot(OP_START, dst, dst_size, src, src_size);
}
int se_aes_crypt_block_ecb(u32 ks, u32 enc, void *dst, const void *src)
@ -259,7 +270,7 @@ int se_aes_crypt_ctr(u32 ks, void *dst, u32 dst_size, const void *src, u32 src_s
if (src_size_aligned)
{
SE(SE_BLOCK_COUNT_REG_OFFSET) = (src_size >> 4) - 1;
if (!_se_execute(OP_START, dst, dst_size, src, src_size_aligned, true))
if (!_se_execute_oneshot(OP_START, dst, dst_size, src, src_size_aligned))
return 0;
}
@ -419,7 +430,7 @@ int se_gen_prng128(void *dst)
SE(SE_BLOCK_COUNT_REG_OFFSET) = (16 >> 4) - 1;
// Trigger the operation.
return _se_execute(OP_START, dst, 16, NULL, 0, true);
return _se_execute_oneshot(OP_START, dst, 16, NULL, 0);
}
void se_get_aes_keys(u8 *buf, u8 *keys, u32 keysize)
@ -431,7 +442,7 @@ void se_get_aes_keys(u8 *buf, u8 *keys, u32 keysize)
SE(SE_CRYPTO_REG_OFFSET) = SE_CRYPTO_KEY_INDEX(0) | SE_CRYPTO_CORE_SEL(CORE_ENCRYPT) | SE_CRYPTO_INPUT_SEL(INPUT_RANDOM);
SE(SE_RNG_CONFIG_REG_OFFSET) = SE_RNG_CONFIG_SRC(RNG_SRC_ENTROPY) | SE_RNG_CONFIG_MODE(RNG_MODE_FORCE_RESEED);
SE(SE_CRYPTO_LAST_BLOCK) = 0;
_se_execute(OP_START, NULL, 0, NULL, 0, true);
_se_execute_oneshot(OP_START, NULL, 0, NULL, 0);
// Save AES keys.
SE(SE_CONFIG_REG_OFFSET) = SE_CONFIG_ENC_MODE(MODE_KEY128) | SE_CONFIG_ENC_ALG(ALG_AES_ENC) | SE_CONFIG_DST(DST_MEMORY);
@ -442,7 +453,7 @@ void se_get_aes_keys(u8 *buf, u8 *keys, u32 keysize)
(i << SE_KEY_INDEX_SHIFT) | SE_CONTEXT_SAVE_WORD_QUAD(KEYS_0_3);
SE(SE_CRYPTO_LAST_BLOCK) = 0;
_se_execute(OP_CTX_SAVE, aligned_buf, 0x10, NULL, 0, true);
_se_execute_oneshot(OP_CTX_SAVE, aligned_buf, 0x10, NULL, 0);
memcpy(keys + i * keysize, aligned_buf, 0x10);
if (keysize > 0x10)
@ -451,7 +462,7 @@ void se_get_aes_keys(u8 *buf, u8 *keys, u32 keysize)
(i << SE_KEY_INDEX_SHIFT) | SE_CONTEXT_SAVE_WORD_QUAD(KEYS_4_7);
SE(SE_CRYPTO_LAST_BLOCK) = 0;
_se_execute(OP_CTX_SAVE, aligned_buf, 0x10, NULL, 0, true);
_se_execute_oneshot(OP_CTX_SAVE, aligned_buf, 0x10, NULL, 0);
memcpy(keys + i * keysize + 0x10, aligned_buf, 0x10);
}
}
@ -459,11 +470,11 @@ void se_get_aes_keys(u8 *buf, u8 *keys, u32 keysize)
// Save SRK to PMC secure scratches.
SE(SE_CONTEXT_SAVE_CONFIG_REG_OFFSET) = SE_CONTEXT_SAVE_SRC(SRK);
SE(0x80) = 0; // SE_CRYPTO_LAST_BLOCK
_se_execute(OP_CTX_SAVE, NULL, 0, NULL, 0, true);
_se_execute_oneshot(OP_CTX_SAVE, NULL, 0, NULL, 0);
// End context save.
SE(SE_CONFIG_REG_OFFSET) = 0;
_se_execute(OP_CTX_SAVE, NULL, 0, NULL, 0, true);
_se_execute_oneshot(OP_CTX_SAVE, NULL, 0, NULL, 0);
// Get SRK.
u32 srk[4];

1
nyx/nyx_gui/sec/se.h
View file

@ -21,6 +21,7 @@
void se_rsa_acc_ctrl(u32 rs, u32 flags);
void se_key_acc_ctrl(u32 ks, u32 flags);
u32 se_key_acc_ctrl_get(u32 ks);
void se_get_aes_keys(u8 *buf, u8 *keys, u32 keysize);
void se_aes_key_set(u32 ks, void *key, u32 size);
void se_aes_key_clear(u32 ks);