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Date: Fri, 27 Mar 2015 23:52:50 +0100
From: Stephan Mueller <smueller@...onox.de>
To: 'Herbert Xu <herbert@...dor.apana.org.au>
Cc: linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 05/20] crypto: mark AES-NI helper ciphers
Flag all AES-NI helper ciphers as internal ciphers to prevent them from
being called by normal users.
Signed-off-by: Stephan Mueller <smueller@...onox.de>
---
arch/x86/crypto/aesni-intel_glue.c | 23 +++++++++++++++--------
1 file changed, 15 insertions(+), 8 deletions(-)
diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c
index 6893f49..f9a78f3 100644
--- a/arch/x86/crypto/aesni-intel_glue.c
+++ b/arch/x86/crypto/aesni-intel_glue.c
@@ -797,7 +797,9 @@ static int rfc4106_init(struct crypto_tfm *tfm)
PTR_ALIGN((u8 *)crypto_tfm_ctx(tfm), AESNI_ALIGN);
struct crypto_aead *cryptd_child;
struct aesni_rfc4106_gcm_ctx *child_ctx;
- cryptd_tfm = cryptd_alloc_aead("__driver-gcm-aes-aesni", 0, 0);
+ cryptd_tfm = cryptd_alloc_aead("__driver-gcm-aes-aesni",
+ CRYPTO_ALG_INTERNAL,
+ CRYPTO_ALG_INTERNAL);
if (IS_ERR(cryptd_tfm))
return PTR_ERR(cryptd_tfm);
@@ -1262,7 +1264,7 @@ static struct crypto_alg aesni_algs[] = { {
.cra_name = "__aes-aesni",
.cra_driver_name = "__driver-aes-aesni",
.cra_priority = 0,
- .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
+ .cra_flags = CRYPTO_ALG_TYPE_CIPHER | CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct crypto_aes_ctx) +
AESNI_ALIGN - 1,
@@ -1281,7 +1283,8 @@ static struct crypto_alg aesni_algs[] = { {
.cra_name = "__ecb-aes-aesni",
.cra_driver_name = "__driver-ecb-aes-aesni",
.cra_priority = 0,
- .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
+ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
+ CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct crypto_aes_ctx) +
AESNI_ALIGN - 1,
@@ -1301,7 +1304,8 @@ static struct crypto_alg aesni_algs[] = { {
.cra_name = "__cbc-aes-aesni",
.cra_driver_name = "__driver-cbc-aes-aesni",
.cra_priority = 0,
- .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
+ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
+ CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct crypto_aes_ctx) +
AESNI_ALIGN - 1,
@@ -1365,7 +1369,8 @@ static struct crypto_alg aesni_algs[] = { {
.cra_name = "__ctr-aes-aesni",
.cra_driver_name = "__driver-ctr-aes-aesni",
.cra_priority = 0,
- .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
+ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
+ CRYPTO_ALG_INTERNAL,
.cra_blocksize = 1,
.cra_ctxsize = sizeof(struct crypto_aes_ctx) +
AESNI_ALIGN - 1,
@@ -1409,7 +1414,7 @@ static struct crypto_alg aesni_algs[] = { {
.cra_name = "__gcm-aes-aesni",
.cra_driver_name = "__driver-gcm-aes-aesni",
.cra_priority = 0,
- .cra_flags = CRYPTO_ALG_TYPE_AEAD,
+ .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_INTERNAL,
.cra_blocksize = 1,
.cra_ctxsize = sizeof(struct aesni_rfc4106_gcm_ctx) +
AESNI_ALIGN,
@@ -1479,7 +1484,8 @@ static struct crypto_alg aesni_algs[] = { {
.cra_name = "__lrw-aes-aesni",
.cra_driver_name = "__driver-lrw-aes-aesni",
.cra_priority = 0,
- .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
+ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
+ CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct aesni_lrw_ctx),
.cra_alignmask = 0,
@@ -1500,7 +1506,8 @@ static struct crypto_alg aesni_algs[] = { {
.cra_name = "__xts-aes-aesni",
.cra_driver_name = "__driver-xts-aes-aesni",
.cra_priority = 0,
- .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
+ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
+ CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct aesni_xts_ctx),
.cra_alignmask = 0,
--
2.1.0
--
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