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crypto: ccree - remove bitlocker cipher

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Remove the bitlocker cipher which is not supported by
the kernel.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Gilad Ben-Yossef 2020-08-05 09:23:01 +03:00 committed by Herbert Xu
parent a93492cae3
commit 1d8b41ff69
2 changed files with 3 additions and 47 deletions
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49
drivers/crypto/ccree/cc_cipher.c
View File

@ -75,8 +75,7 @@ static int validate_keys_sizes(struct cc_cipher_ctx *ctx_p, u32 size)
switch (size) {
case CC_AES_128_BIT_KEY_SIZE:
case CC_AES_192_BIT_KEY_SIZE:
if (ctx_p->cipher_mode != DRV_CIPHER_XTS &&
ctx_p->cipher_mode != DRV_CIPHER_BITLOCKER)
if (ctx_p->cipher_mode != DRV_CIPHER_XTS)
return 0;
break;
case CC_AES_256_BIT_KEY_SIZE:
@ -84,8 +83,7 @@ static int validate_keys_sizes(struct cc_cipher_ctx *ctx_p, u32 size)
case (CC_AES_192_BIT_KEY_SIZE * 2):
case (CC_AES_256_BIT_KEY_SIZE * 2):
if (ctx_p->cipher_mode == DRV_CIPHER_XTS ||
ctx_p->cipher_mode == DRV_CIPHER_ESSIV ||
ctx_p->cipher_mode == DRV_CIPHER_BITLOCKER)
ctx_p->cipher_mode == DRV_CIPHER_ESSIV)
return 0;
break;
default:
@ -122,7 +120,6 @@ static int validate_data_size(struct cc_cipher_ctx *ctx_p,
case DRV_CIPHER_ECB:
case DRV_CIPHER_CBC:
case DRV_CIPHER_ESSIV:
case DRV_CIPHER_BITLOCKER:
if (IS_ALIGNED(size, AES_BLOCK_SIZE))
return 0;
break;
@ -348,8 +345,7 @@ static int cc_cipher_sethkey(struct crypto_skcipher *sktfm, const u8 *key,
}
if (ctx_p->cipher_mode == DRV_CIPHER_XTS ||
ctx_p->cipher_mode == DRV_CIPHER_ESSIV ||
ctx_p->cipher_mode == DRV_CIPHER_BITLOCKER) {
ctx_p->cipher_mode == DRV_CIPHER_ESSIV) {
if (hki.hw_key1 == hki.hw_key2) {
dev_err(dev, "Illegal hw key numbers (%d,%d)\n",
hki.hw_key1, hki.hw_key2);
@ -547,7 +543,6 @@ static void cc_setup_readiv_desc(struct crypto_tfm *tfm,
break;
case DRV_CIPHER_XTS:
case DRV_CIPHER_ESSIV:
case DRV_CIPHER_BITLOCKER:
/* IV */
hw_desc_init(&desc[*seq_size]);
set_setup_mode(&desc[*seq_size], SETUP_WRITE_STATE1);
@ -602,7 +597,6 @@ static void cc_setup_state_desc(struct crypto_tfm *tfm,
break;
case DRV_CIPHER_XTS:
case DRV_CIPHER_ESSIV:
case DRV_CIPHER_BITLOCKER:
break;
default:
dev_err(dev, "Unsupported cipher mode (%d)\n", cipher_mode);
@ -636,7 +630,6 @@ static void cc_setup_xex_state_desc(struct crypto_tfm *tfm,
break;
case DRV_CIPHER_XTS:
case DRV_CIPHER_ESSIV:
case DRV_CIPHER_BITLOCKER:
if (cipher_mode == DRV_CIPHER_ESSIV)
key_len = SHA256_DIGEST_SIZE;
@ -750,7 +743,6 @@ static void cc_setup_key_desc(struct crypto_tfm *tfm,
break;
case DRV_CIPHER_XTS:
case DRV_CIPHER_ESSIV:
case DRV_CIPHER_BITLOCKER:
/* Load AES key */
hw_desc_init(&desc[*seq_size]);
set_cipher_mode(&desc[*seq_size], cipher_mode);
@ -1048,24 +1040,6 @@ static const struct cc_alg_template skcipher_algs[] = {
.std_body = CC_STD_NIST,
.sec_func = true,
},
{
.name = "bitlocker(paes)",
.driver_name = "bitlocker-paes-ccree",
.blocksize = AES_BLOCK_SIZE,
.template_skcipher = {
.setkey = cc_cipher_sethkey,
.encrypt = cc_cipher_encrypt,
.decrypt = cc_cipher_decrypt,
.min_keysize = CC_HW_KEY_SIZE,
.max_keysize = CC_HW_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
},
.cipher_mode = DRV_CIPHER_BITLOCKER,
.flow_mode = S_DIN_to_AES,
.min_hw_rev = CC_HW_REV_712,
.std_body = CC_STD_NIST,
.sec_func = true,
},
{
.name = "ecb(paes)",
.driver_name = "ecb-paes-ccree",
@ -1194,23 +1168,6 @@ static const struct cc_alg_template skcipher_algs[] = {
.min_hw_rev = CC_HW_REV_712,
.std_body = CC_STD_NIST,
},
{
.name = "bitlocker(aes)",
.driver_name = "bitlocker-aes-ccree",
.blocksize = AES_BLOCK_SIZE,
.template_skcipher = {
.setkey = cc_cipher_setkey,
.encrypt = cc_cipher_encrypt,
.decrypt = cc_cipher_decrypt,
.min_keysize = AES_MIN_KEY_SIZE * 2,
.max_keysize = AES_MAX_KEY_SIZE * 2,
.ivsize = AES_BLOCK_SIZE,
},
.cipher_mode = DRV_CIPHER_BITLOCKER,
.flow_mode = S_DIN_to_AES,
.min_hw_rev = CC_HW_REV_712,
.std_body = CC_STD_NIST,
},
{
.name = "ecb(aes)",
.driver_name = "ecb-aes-ccree",

1
drivers/crypto/ccree/cc_crypto_ctx.h
View File

@ -108,7 +108,6 @@ enum drv_cipher_mode {
DRV_CIPHER_CBC_CTS = 11,
DRV_CIPHER_GCTR = 12,
DRV_CIPHER_ESSIV = 13,
DRV_CIPHER_BITLOCKER = 14,
DRV_CIPHER_RESERVE32B = S32_MAX
};