AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-16 04:17:27 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

crypto: x86/sha - Eliminate casts on asm implementations

Browse Source 
In order to avoid CFI function prototype mismatches, this removes the
casts on assembly implementations of sha1/256/512 accelerators. The
safety checks from BUILD_BUG_ON() remain.

Additionally, this renames various arguments for clarity, as suggested
by Eric Biggers.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Kees Cook 2020-01-14 19:57:29 -08:00 committed by Herbert Xu
parent e0437dc647
commit 41419a2890
11 changed files with 102 additions and 102 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/x86/crypto/sha1_avx2_x86_64_asm.S
View File

@ -62,11 +62,11 @@
*Visit http://software.intel.com/en-us/articles/
*and refer to improving-the-performance-of-the-secure-hash-algorithm-1/
*
*Updates 20-byte SHA-1 record in 'hash' for even number of
*'num_blocks' consecutive 64-byte blocks
*Updates 20-byte SHA-1 record at start of 'state', from 'input', for
*even number of 'blocks' consecutive 64-byte blocks.
*
*extern "C" void sha1_transform_avx2(
* int *hash, const char* input, size_t num_blocks );
* struct sha1_state *state, const u8* input, int blocks );
*/
#include <linux/linkage.h>

14
arch/x86/crypto/sha1_ssse3_asm.S
View File

@ -457,9 +457,13 @@ W_PRECALC_SSSE3
movdqu \a,\b
.endm
/* SSSE3 optimized implementation:
* extern "C" void sha1_transform_ssse3(u32 *digest, const char *data, u32 *ws,
* unsigned int rounds);
/*
* SSSE3 optimized implementation:
*
* extern "C" void sha1_transform_ssse3(struct sha1_state *state,
* const u8 *data, int blocks);
*
* Note that struct sha1_state is assumed to begin with u32 state[5].
*/
SHA1_VECTOR_ASM sha1_transform_ssse3
@ -545,8 +549,8 @@ W_PRECALC_AVX
/* AVX optimized implementation:
* extern "C" void sha1_transform_avx(u32 *digest, const char *data, u32 *ws,
* unsigned int rounds);
* extern "C" void sha1_transform_avx(struct sha1_state *state,
* const u8 *data, int blocks);
*/
SHA1_VECTOR_ASM sha1_transform_avx

70
arch/x86/crypto/sha1_ssse3_glue.c
View File

@ -27,11 +27,8 @@
#include <crypto/sha1_base.h>
#include <asm/simd.h>
typedef void (sha1_transform_fn)(u32 *digest, const char *data,
unsigned int rounds);
static int sha1_update(struct shash_desc *desc, const u8 *data,
unsigned int len, sha1_transform_fn *sha1_xform)
unsigned int len, sha1_block_fn *sha1_xform)
{
struct sha1_state *sctx = shash_desc_ctx(desc);
@ -39,48 +36,47 @@ static int sha1_update(struct shash_desc *desc, const u8 *data,
(sctx->count % SHA1_BLOCK_SIZE) + len < SHA1_BLOCK_SIZE)
return crypto_sha1_update(desc, data, len);
/* make sure casting to sha1_block_fn() is safe */
/*
* Make sure struct sha1_state begins directly with the SHA1
* 160-bit internal state, as this is what the asm functions expect.
*/
BUILD_BUG_ON(offsetof(struct sha1_state, state) != 0);
kernel_fpu_begin();
sha1_base_do_update(desc, data, len,
(sha1_block_fn *)sha1_xform);
sha1_base_do_update(desc, data, len, sha1_xform);
kernel_fpu_end();
return 0;
}
static int sha1_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out, sha1_transform_fn *sha1_xform)
unsigned int len, u8 *out, sha1_block_fn *sha1_xform)
{
if (!crypto_simd_usable())
return crypto_sha1_finup(desc, data, len, out);
kernel_fpu_begin();
if (len)
sha1_base_do_update(desc, data, len,
(sha1_block_fn *)sha1_xform);
sha1_base_do_finalize(desc, (sha1_block_fn *)sha1_xform);
sha1_base_do_update(desc, data, len, sha1_xform);
sha1_base_do_finalize(desc, sha1_xform);
kernel_fpu_end();
return sha1_base_finish(desc, out);
}
asmlinkage void sha1_transform_ssse3(u32 *digest, const char *data,
unsigned int rounds);
asmlinkage void sha1_transform_ssse3(struct sha1_state *state,
const u8 *data, int blocks);
static int sha1_ssse3_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
return sha1_update(desc, data, len,
(sha1_transform_fn *) sha1_transform_ssse3);
return sha1_update(desc, data, len, sha1_transform_ssse3);
}
static int sha1_ssse3_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
return sha1_finup(desc, data, len, out,
(sha1_transform_fn *) sha1_transform_ssse3);
return sha1_finup(desc, data, len, out, sha1_transform_ssse3);
}
/* Add padding and return the message digest. */
@ -119,21 +115,19 @@ static void unregister_sha1_ssse3(void)
}
#ifdef CONFIG_AS_AVX
asmlinkage void sha1_transform_avx(u32 *digest, const char *data,
unsigned int rounds);
asmlinkage void sha1_transform_avx(struct sha1_state *state,
const u8 *data, int blocks);
static int sha1_avx_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
return sha1_update(desc, data, len,
(sha1_transform_fn *) sha1_transform_avx);
return sha1_update(desc, data, len, sha1_transform_avx);
}
static int sha1_avx_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
return sha1_finup(desc, data, len, out,
(sha1_transform_fn *) sha1_transform_avx);
return sha1_finup(desc, data, len, out, sha1_transform_avx);
}
static int sha1_avx_final(struct shash_desc *desc, u8 *out)
@ -190,8 +184,8 @@ static inline void unregister_sha1_avx(void) { }
#if defined(CONFIG_AS_AVX2) && (CONFIG_AS_AVX)
#define SHA1_AVX2_BLOCK_OPTSIZE 4 /* optimal 4*64 bytes of SHA1 blocks */
asmlinkage void sha1_transform_avx2(u32 *digest, const char *data,
unsigned int rounds);
asmlinkage void sha1_transform_avx2(struct sha1_state *state,
const u8 *data, int blocks);
static bool avx2_usable(void)
{
@ -203,28 +197,26 @@ static bool avx2_usable(void)
return false;
}
static void sha1_apply_transform_avx2(u32 *digest, const char *data,
unsigned int rounds)
static void sha1_apply_transform_avx2(struct sha1_state *state,
const u8 *data, int blocks)
{
/* Select the optimal transform based on data block size */
if (rounds >= SHA1_AVX2_BLOCK_OPTSIZE)
sha1_transform_avx2(digest, data, rounds);
if (blocks >= SHA1_AVX2_BLOCK_OPTSIZE)
sha1_transform_avx2(state, data, blocks);
else
sha1_transform_avx(digest, data, rounds);
sha1_transform_avx(state, data, blocks);
}
static int sha1_avx2_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
return sha1_update(desc, data, len,
(sha1_transform_fn *) sha1_apply_transform_avx2);
return sha1_update(desc, data, len, sha1_apply_transform_avx2);
}
static int sha1_avx2_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
return sha1_finup(desc, data, len, out,
(sha1_transform_fn *) sha1_apply_transform_avx2);
return sha1_finup(desc, data, len, out, sha1_apply_transform_avx2);
}
static int sha1_avx2_final(struct shash_desc *desc, u8 *out)
@ -267,21 +259,19 @@ static inline void unregister_sha1_avx2(void) { }
#endif
#ifdef CONFIG_AS_SHA1_NI
asmlinkage void sha1_ni_transform(u32 *digest, const char *data,
unsigned int rounds);
asmlinkage void sha1_ni_transform(struct sha1_state *digest, const u8 *data,
int rounds);
static int sha1_ni_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
return sha1_update(desc, data, len,
(sha1_transform_fn *) sha1_ni_transform);
return sha1_update(desc, data, len, sha1_ni_transform);
}
static int sha1_ni_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
return sha1_finup(desc, data, len, out,
(sha1_transform_fn *) sha1_ni_transform);
return sha1_finup(desc, data, len, out, sha1_ni_transform);
}
static int sha1_ni_final(struct shash_desc *desc, u8 *out)

4
arch/x86/crypto/sha256-avx-asm.S
View File

@ -341,8 +341,8 @@ a = TMP_
.endm
########################################################################
## void sha256_transform_avx(void *input_data, UINT32 digest[8], UINT64 num_blks)
## arg 1 : pointer to digest
## void sha256_transform_avx(state sha256_state *state, const u8 *data, int blocks)
## arg 1 : pointer to state
## arg 2 : pointer to input data
## arg 3 : Num blocks
########################################################################

4
arch/x86/crypto/sha256-avx2-asm.S
View File

@ -520,8 +520,8 @@ STACK_SIZE = _RSP + _RSP_SIZE
.endm
########################################################################
## void sha256_transform_rorx(void *input_data, UINT32 digest[8], UINT64 num_blks)
## arg 1 : pointer to digest
## void sha256_transform_rorx(struct sha256_state *state, const u8 *data, int blocks)
## arg 1 : pointer to state
## arg 2 : pointer to input data
## arg 3 : Num blocks
########################################################################

6
arch/x86/crypto/sha256-ssse3-asm.S
View File

@ -347,8 +347,10 @@ a = TMP_
.endm
########################################################################
## void sha256_transform_ssse3(void *input_data, UINT32 digest[8], UINT64 num_blks)
## arg 1 : pointer to digest
## void sha256_transform_ssse3(struct sha256_state *state, const u8 *data,
## int blocks);
## arg 1 : pointer to state
## (struct sha256_state is assumed to begin with u32 state[8])
## arg 2 : pointer to input data
## arg 3 : Num blocks
########################################################################

34
arch/x86/crypto/sha256_ssse3_glue.c
View File

@ -41,12 +41,11 @@
#include <linux/string.h>
#include <asm/simd.h>
asmlinkage void sha256_transform_ssse3(u32 *digest, const char *data,
u64 rounds);
typedef void (sha256_transform_fn)(u32 *digest, const char *data, u64 rounds);
asmlinkage void sha256_transform_ssse3(struct sha256_state *state,
const u8 *data, int blocks);
static int _sha256_update(struct shash_desc *desc, const u8 *data,
unsigned int len, sha256_transform_fn *sha256_xform)
unsigned int len, sha256_block_fn *sha256_xform)
{
struct sha256_state *sctx = shash_desc_ctx(desc);
@ -54,28 +53,29 @@ static int _sha256_update(struct shash_desc *desc, const u8 *data,
(sctx->count % SHA256_BLOCK_SIZE) + len < SHA256_BLOCK_SIZE)
return crypto_sha256_update(desc, data, len);
/* make sure casting to sha256_block_fn() is safe */
/*
* Make sure struct sha256_state begins directly with the SHA256
* 256-bit internal state, as this is what the asm functions expect.
*/
BUILD_BUG_ON(offsetof(struct sha256_state, state) != 0);
kernel_fpu_begin();
sha256_base_do_update(desc, data, len,
(sha256_block_fn *)sha256_xform);
sha256_base_do_update(desc, data, len, sha256_xform);
kernel_fpu_end();
return 0;
}
static int sha256_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out, sha256_transform_fn *sha256_xform)
unsigned int len, u8 *out, sha256_block_fn *sha256_xform)
{
if (!crypto_simd_usable())
return crypto_sha256_finup(desc, data, len, out);
kernel_fpu_begin();
if (len)
sha256_base_do_update(desc, data, len,
(sha256_block_fn *)sha256_xform);
sha256_base_do_finalize(desc, (sha256_block_fn *)sha256_xform);
sha256_base_do_update(desc, data, len, sha256_xform);
sha256_base_do_finalize(desc, sha256_xform);
kernel_fpu_end();
return sha256_base_finish(desc, out);
@ -145,8 +145,8 @@ static void unregister_sha256_ssse3(void)
}
#ifdef CONFIG_AS_AVX
asmlinkage void sha256_transform_avx(u32 *digest, const char *data,
u64 rounds);
asmlinkage void sha256_transform_avx(struct sha256_state *state,
const u8 *data, int blocks);
static int sha256_avx_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
@ -227,8 +227,8 @@ static inline void unregister_sha256_avx(void) { }
#endif
#if defined(CONFIG_AS_AVX2) && defined(CONFIG_AS_AVX)
asmlinkage void sha256_transform_rorx(u32 *digest, const char *data,
u64 rounds);
asmlinkage void sha256_transform_rorx(struct sha256_state *state,
const u8 *data, int blocks);
static int sha256_avx2_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
@ -307,8 +307,8 @@ static inline void unregister_sha256_avx2(void) { }
#endif
#ifdef CONFIG_AS_SHA256_NI
asmlinkage void sha256_ni_transform(u32 *digest, const char *data,
u64 rounds); /*unsigned int rounds);*/
asmlinkage void sha256_ni_transform(struct sha256_state *digest,
const u8 *data, int rounds);
static int sha256_ni_update(struct shash_desc *desc, const u8 *data,
unsigned int len)

11
arch/x86/crypto/sha512-avx-asm.S
View File

@ -271,11 +271,12 @@ frame_size = frame_GPRSAVE + GPRSAVE_SIZE
.endm
########################################################################
# void sha512_transform_avx(void* D, const void* M, u64 L)
# Purpose: Updates the SHA512 digest stored at D with the message stored in M.
# The size of the message pointed to by M must be an integer multiple of SHA512
# message blocks.
# L is the message length in SHA512 blocks
# void sha512_transform_avx(sha512_state *state, const u8 *data, int blocks)
# Purpose: Updates the SHA512 digest stored at "state" with the message
# stored in "data".
# The size of the message pointed to by "data" must be an integer multiple
# of SHA512 message blocks.
# "blocks" is the message length in SHA512 blocks
########################################################################
SYM_FUNC_START(sha512_transform_avx)
cmp $0, msglen

11
arch/x86/crypto/sha512-avx2-asm.S
View File

@ -563,11 +563,12 @@ frame_size = frame_GPRSAVE + GPRSAVE_SIZE
.endm
########################################################################
# void sha512_transform_rorx(void* D, const void* M, uint64_t L)#
# Purpose: Updates the SHA512 digest stored at D with the message stored in M.
# The size of the message pointed to by M must be an integer multiple of SHA512
# message blocks.
# L is the message length in SHA512 blocks
# void sha512_transform_rorx(sha512_state *state, const u8 *data, int blocks)
# Purpose: Updates the SHA512 digest stored at "state" with the message
# stored in "data".
# The size of the message pointed to by "data" must be an integer multiple
# of SHA512 message blocks.
# "blocks" is the message length in SHA512 blocks
########################################################################
SYM_FUNC_START(sha512_transform_rorx)
# Allocate Stack Space

13
arch/x86/crypto/sha512-ssse3-asm.S
View File

@ -269,11 +269,14 @@ frame_size = frame_GPRSAVE + GPRSAVE_SIZE
.endm
########################################################################
# void sha512_transform_ssse3(void* D, const void* M, u64 L)#
# Purpose: Updates the SHA512 digest stored at D with the message stored in M.
# The size of the message pointed to by M must be an integer multiple of SHA512
# message blocks.
# L is the message length in SHA512 blocks.
## void sha512_transform_ssse3(struct sha512_state *state, const u8 *data,
## int blocks);
# (struct sha512_state is assumed to begin with u64 state[8])
# Purpose: Updates the SHA512 digest stored at "state" with the message
# stored in "data".
# The size of the message pointed to by "data" must be an integer multiple
# of SHA512 message blocks.
# "blocks" is the message length in SHA512 blocks.
########################################################################
SYM_FUNC_START(sha512_transform_ssse3)

31
arch/x86/crypto/sha512_ssse3_glue.c
View File

@ -39,13 +39,11 @@
#include <crypto/sha512_base.h>
#include <asm/simd.h>
asmlinkage void sha512_transform_ssse3(u64 *digest, const char *data,
u64 rounds);
typedef void (sha512_transform_fn)(u64 *digest, const char *data, u64 rounds);
asmlinkage void sha512_transform_ssse3(struct sha512_state *state,
const u8 *data, int blocks);
static int sha512_update(struct shash_desc *desc, const u8 *data,
unsigned int len, sha512_transform_fn *sha512_xform)
unsigned int len, sha512_block_fn *sha512_xform)
{
struct sha512_state *sctx = shash_desc_ctx(desc);
@ -53,28 +51,29 @@ static int sha512_update(struct shash_desc *desc, const u8 *data,
(sctx->count[0] % SHA512_BLOCK_SIZE) + len < SHA512_BLOCK_SIZE)
return crypto_sha512_update(desc, data, len);
/* make sure casting to sha512_block_fn() is safe */
/*
* Make sure struct sha512_state begins directly with the SHA512
* 512-bit internal state, as this is what the asm functions expect.
*/
BUILD_BUG_ON(offsetof(struct sha512_state, state) != 0);
kernel_fpu_begin();
sha512_base_do_update(desc, data, len,
(sha512_block_fn *)sha512_xform);
sha512_base_do_update(desc, data, len, sha512_xform);
kernel_fpu_end();
return 0;
}
static int sha512_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out, sha512_transform_fn *sha512_xform)
unsigned int len, u8 *out, sha512_block_fn *sha512_xform)
{
if (!crypto_simd_usable())
return crypto_sha512_finup(desc, data, len, out);
kernel_fpu_begin();
if (len)
sha512_base_do_update(desc, data, len,
(sha512_block_fn *)sha512_xform);
sha512_base_do_finalize(desc, (sha512_block_fn *)sha512_xform);
sha512_base_do_update(desc, data, len, sha512_xform);
sha512_base_do_finalize(desc, sha512_xform);
kernel_fpu_end();
return sha512_base_finish(desc, out);
@ -144,8 +143,8 @@ static void unregister_sha512_ssse3(void)
}
#ifdef CONFIG_AS_AVX
asmlinkage void sha512_transform_avx(u64 *digest, const char *data,
u64 rounds);
asmlinkage void sha512_transform_avx(struct sha512_state *state,
const u8 *data, int blocks);
static bool avx_usable(void)
{
if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL)) {
@ -225,8 +224,8 @@ static inline void unregister_sha512_avx(void) { }
#endif
#if defined(CONFIG_AS_AVX2) && defined(CONFIG_AS_AVX)
asmlinkage void sha512_transform_rorx(u64 *digest, const char *data,
u64 rounds);
asmlinkage void sha512_transform_rorx(struct sha512_state *state,
const u8 *data, int blocks);
static int sha512_avx2_update(struct shash_desc *desc, const u8 *data,
unsigned int len)