diff options
Diffstat (limited to 'arch/x86/include/asm/crypto')
| -rw-r--r-- | arch/x86/include/asm/crypto/aes.h | 12 | ||||
| -rw-r--r-- | arch/x86/include/asm/crypto/camellia.h | 96 | ||||
| -rw-r--r-- | arch/x86/include/asm/crypto/glue_helper.h | 122 | ||||
| -rw-r--r-- | arch/x86/include/asm/crypto/serpent-avx.h | 42 | ||||
| -rw-r--r-- | arch/x86/include/asm/crypto/serpent-sse2.h | 64 | ||||
| -rw-r--r-- | arch/x86/include/asm/crypto/twofish.h | 28 |
6 files changed, 364 insertions, 0 deletions
diff --git a/arch/x86/include/asm/crypto/aes.h b/arch/x86/include/asm/crypto/aes.h new file mode 100644 index 000000000..c508521dd --- /dev/null +++ b/arch/x86/include/asm/crypto/aes.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef ASM_X86_AES_H +#define ASM_X86_AES_H + +#include <linux/crypto.h> +#include <crypto/aes.h> + +void crypto_aes_encrypt_x86(struct crypto_aes_ctx *ctx, u8 *dst, + const u8 *src); +void crypto_aes_decrypt_x86(struct crypto_aes_ctx *ctx, u8 *dst, + const u8 *src); +#endif diff --git a/arch/x86/include/asm/crypto/camellia.h b/arch/x86/include/asm/crypto/camellia.h new file mode 100644 index 000000000..a5d86fc05 --- /dev/null +++ b/arch/x86/include/asm/crypto/camellia.h @@ -0,0 +1,96 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef ASM_X86_CAMELLIA_H +#define ASM_X86_CAMELLIA_H + +#include <crypto/b128ops.h> +#include <linux/crypto.h> +#include <linux/kernel.h> + +#define CAMELLIA_MIN_KEY_SIZE 16 +#define CAMELLIA_MAX_KEY_SIZE 32 +#define CAMELLIA_BLOCK_SIZE 16 +#define CAMELLIA_TABLE_BYTE_LEN 272 +#define CAMELLIA_PARALLEL_BLOCKS 2 + +struct crypto_skcipher; + +struct camellia_ctx { + u64 key_table[CAMELLIA_TABLE_BYTE_LEN / sizeof(u64)]; + u32 key_length; +}; + +struct camellia_xts_ctx { + struct camellia_ctx tweak_ctx; + struct camellia_ctx crypt_ctx; +}; + +extern int __camellia_setkey(struct camellia_ctx *cctx, + const unsigned char *key, + unsigned int key_len, u32 *flags); + +extern int xts_camellia_setkey(struct crypto_skcipher *tfm, const u8 *key, + unsigned int keylen); + +/* regular block cipher functions */ +asmlinkage void __camellia_enc_blk(struct camellia_ctx *ctx, u8 *dst, + const u8 *src, bool xor); +asmlinkage void camellia_dec_blk(struct camellia_ctx *ctx, u8 *dst, + const u8 *src); + +/* 2-way parallel cipher functions */ +asmlinkage void __camellia_enc_blk_2way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src, bool xor); +asmlinkage void camellia_dec_blk_2way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src); + +/* 16-way parallel cipher functions (avx/aes-ni) */ +asmlinkage void camellia_ecb_enc_16way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src); +asmlinkage void camellia_ecb_dec_16way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src); + +asmlinkage void camellia_cbc_dec_16way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src); +asmlinkage void camellia_ctr_16way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); + +asmlinkage void camellia_xts_enc_16way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); +asmlinkage void camellia_xts_dec_16way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); + +static inline void camellia_enc_blk(struct camellia_ctx *ctx, u8 *dst, + const u8 *src) +{ + __camellia_enc_blk(ctx, dst, src, false); +} + +static inline void camellia_enc_blk_xor(struct camellia_ctx *ctx, u8 *dst, + const u8 *src) +{ + __camellia_enc_blk(ctx, dst, src, true); +} + +static inline void camellia_enc_blk_2way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src) +{ + __camellia_enc_blk_2way(ctx, dst, src, false); +} + +static inline void camellia_enc_blk_xor_2way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src) +{ + __camellia_enc_blk_2way(ctx, dst, src, true); +} + +/* glue helpers */ +extern void camellia_decrypt_cbc_2way(void *ctx, u128 *dst, const u128 *src); +extern void camellia_crypt_ctr(void *ctx, u128 *dst, const u128 *src, + le128 *iv); +extern void camellia_crypt_ctr_2way(void *ctx, u128 *dst, const u128 *src, + le128 *iv); + +extern void camellia_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv); +extern void camellia_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv); + +#endif /* ASM_X86_CAMELLIA_H */ diff --git a/arch/x86/include/asm/crypto/glue_helper.h b/arch/x86/include/asm/crypto/glue_helper.h new file mode 100644 index 000000000..d1818634a --- /dev/null +++ b/arch/x86/include/asm/crypto/glue_helper.h @@ -0,0 +1,122 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Shared glue code for 128bit block ciphers + */ + +#ifndef _CRYPTO_GLUE_HELPER_H +#define _CRYPTO_GLUE_HELPER_H + +#include <crypto/internal/skcipher.h> +#include <linux/kernel.h> +#include <asm/fpu/api.h> +#include <crypto/b128ops.h> + +typedef void (*common_glue_func_t)(void *ctx, u8 *dst, const u8 *src); +typedef void (*common_glue_cbc_func_t)(void *ctx, u128 *dst, const u128 *src); +typedef void (*common_glue_ctr_func_t)(void *ctx, u128 *dst, const u128 *src, + le128 *iv); +typedef void (*common_glue_xts_func_t)(void *ctx, u128 *dst, const u128 *src, + le128 *iv); + +#define GLUE_FUNC_CAST(fn) ((common_glue_func_t)(fn)) +#define GLUE_CBC_FUNC_CAST(fn) ((common_glue_cbc_func_t)(fn)) +#define GLUE_CTR_FUNC_CAST(fn) ((common_glue_ctr_func_t)(fn)) +#define GLUE_XTS_FUNC_CAST(fn) ((common_glue_xts_func_t)(fn)) + +struct common_glue_func_entry { + unsigned int num_blocks; /* number of blocks that @fn will process */ + union { + common_glue_func_t ecb; + common_glue_cbc_func_t cbc; + common_glue_ctr_func_t ctr; + common_glue_xts_func_t xts; + } fn_u; +}; + +struct common_glue_ctx { + unsigned int num_funcs; + int fpu_blocks_limit; /* -1 means fpu not needed at all */ + + /* + * First funcs entry must have largest num_blocks and last funcs entry + * must have num_blocks == 1! + */ + struct common_glue_func_entry funcs[]; +}; + +static inline bool glue_fpu_begin(unsigned int bsize, int fpu_blocks_limit, + struct skcipher_walk *walk, + bool fpu_enabled, unsigned int nbytes) +{ + if (likely(fpu_blocks_limit < 0)) + return false; + + if (fpu_enabled) + return true; + + /* + * Vector-registers are only used when chunk to be processed is large + * enough, so do not enable FPU until it is necessary. + */ + if (nbytes < bsize * (unsigned int)fpu_blocks_limit) + return false; + + /* prevent sleeping if FPU is in use */ + skcipher_walk_atomise(walk); + + kernel_fpu_begin(); + return true; +} + +static inline void glue_fpu_end(bool fpu_enabled) +{ + if (fpu_enabled) + kernel_fpu_end(); +} + +static inline void le128_to_be128(be128 *dst, const le128 *src) +{ + dst->a = cpu_to_be64(le64_to_cpu(src->a)); + dst->b = cpu_to_be64(le64_to_cpu(src->b)); +} + +static inline void be128_to_le128(le128 *dst, const be128 *src) +{ + dst->a = cpu_to_le64(be64_to_cpu(src->a)); + dst->b = cpu_to_le64(be64_to_cpu(src->b)); +} + +static inline void le128_inc(le128 *i) +{ + u64 a = le64_to_cpu(i->a); + u64 b = le64_to_cpu(i->b); + + b++; + if (!b) + a++; + + i->a = cpu_to_le64(a); + i->b = cpu_to_le64(b); +} + +extern int glue_ecb_req_128bit(const struct common_glue_ctx *gctx, + struct skcipher_request *req); + +extern int glue_cbc_encrypt_req_128bit(const common_glue_func_t fn, + struct skcipher_request *req); + +extern int glue_cbc_decrypt_req_128bit(const struct common_glue_ctx *gctx, + struct skcipher_request *req); + +extern int glue_ctr_req_128bit(const struct common_glue_ctx *gctx, + struct skcipher_request *req); + +extern int glue_xts_req_128bit(const struct common_glue_ctx *gctx, + struct skcipher_request *req, + common_glue_func_t tweak_fn, void *tweak_ctx, + void *crypt_ctx); + +extern void glue_xts_crypt_128bit_one(void *ctx, u128 *dst, const u128 *src, + le128 *iv, common_glue_func_t fn); + +#endif /* _CRYPTO_GLUE_HELPER_H */ diff --git a/arch/x86/include/asm/crypto/serpent-avx.h b/arch/x86/include/asm/crypto/serpent-avx.h new file mode 100644 index 000000000..db7c9cc32 --- /dev/null +++ b/arch/x86/include/asm/crypto/serpent-avx.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef ASM_X86_SERPENT_AVX_H +#define ASM_X86_SERPENT_AVX_H + +#include <crypto/b128ops.h> +#include <crypto/serpent.h> +#include <linux/types.h> + +struct crypto_skcipher; + +#define SERPENT_PARALLEL_BLOCKS 8 + +struct serpent_xts_ctx { + struct serpent_ctx tweak_ctx; + struct serpent_ctx crypt_ctx; +}; + +asmlinkage void serpent_ecb_enc_8way_avx(struct serpent_ctx *ctx, u8 *dst, + const u8 *src); +asmlinkage void serpent_ecb_dec_8way_avx(struct serpent_ctx *ctx, u8 *dst, + const u8 *src); + +asmlinkage void serpent_cbc_dec_8way_avx(struct serpent_ctx *ctx, u8 *dst, + const u8 *src); +asmlinkage void serpent_ctr_8way_avx(struct serpent_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); + +asmlinkage void serpent_xts_enc_8way_avx(struct serpent_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); +asmlinkage void serpent_xts_dec_8way_avx(struct serpent_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); + +extern void __serpent_crypt_ctr(void *ctx, u128 *dst, const u128 *src, + le128 *iv); + +extern void serpent_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv); +extern void serpent_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv); + +extern int xts_serpent_setkey(struct crypto_skcipher *tfm, const u8 *key, + unsigned int keylen); + +#endif diff --git a/arch/x86/include/asm/crypto/serpent-sse2.h b/arch/x86/include/asm/crypto/serpent-sse2.h new file mode 100644 index 000000000..1a345e8a7 --- /dev/null +++ b/arch/x86/include/asm/crypto/serpent-sse2.h @@ -0,0 +1,64 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef ASM_X86_SERPENT_SSE2_H +#define ASM_X86_SERPENT_SSE2_H + +#include <linux/crypto.h> +#include <crypto/serpent.h> + +#ifdef CONFIG_X86_32 + +#define SERPENT_PARALLEL_BLOCKS 4 + +asmlinkage void __serpent_enc_blk_4way(struct serpent_ctx *ctx, u8 *dst, + const u8 *src, bool xor); +asmlinkage void serpent_dec_blk_4way(struct serpent_ctx *ctx, u8 *dst, + const u8 *src); + +static inline void serpent_enc_blk_xway(struct serpent_ctx *ctx, u8 *dst, + const u8 *src) +{ + __serpent_enc_blk_4way(ctx, dst, src, false); +} + +static inline void serpent_enc_blk_xway_xor(struct serpent_ctx *ctx, u8 *dst, + const u8 *src) +{ + __serpent_enc_blk_4way(ctx, dst, src, true); +} + +static inline void serpent_dec_blk_xway(struct serpent_ctx *ctx, u8 *dst, + const u8 *src) +{ + serpent_dec_blk_4way(ctx, dst, src); +} + +#else + +#define SERPENT_PARALLEL_BLOCKS 8 + +asmlinkage void __serpent_enc_blk_8way(struct serpent_ctx *ctx, u8 *dst, + const u8 *src, bool xor); +asmlinkage void serpent_dec_blk_8way(struct serpent_ctx *ctx, u8 *dst, + const u8 *src); + +static inline void serpent_enc_blk_xway(struct serpent_ctx *ctx, u8 *dst, + const u8 *src) +{ + __serpent_enc_blk_8way(ctx, dst, src, false); +} + +static inline void serpent_enc_blk_xway_xor(struct serpent_ctx *ctx, u8 *dst, + const u8 *src) +{ + __serpent_enc_blk_8way(ctx, dst, src, true); +} + +static inline void serpent_dec_blk_xway(struct serpent_ctx *ctx, u8 *dst, + const u8 *src) +{ + serpent_dec_blk_8way(ctx, dst, src); +} + +#endif + +#endif diff --git a/arch/x86/include/asm/crypto/twofish.h b/arch/x86/include/asm/crypto/twofish.h new file mode 100644 index 000000000..f618bf272 --- /dev/null +++ b/arch/x86/include/asm/crypto/twofish.h @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef ASM_X86_TWOFISH_H +#define ASM_X86_TWOFISH_H + +#include <linux/crypto.h> +#include <crypto/twofish.h> +#include <crypto/b128ops.h> + +/* regular block cipher functions from twofish_x86_64 module */ +asmlinkage void twofish_enc_blk(struct twofish_ctx *ctx, u8 *dst, + const u8 *src); +asmlinkage void twofish_dec_blk(struct twofish_ctx *ctx, u8 *dst, + const u8 *src); + +/* 3-way parallel cipher functions */ +asmlinkage void __twofish_enc_blk_3way(struct twofish_ctx *ctx, u8 *dst, + const u8 *src, bool xor); +asmlinkage void twofish_dec_blk_3way(struct twofish_ctx *ctx, u8 *dst, + const u8 *src); + +/* helpers from twofish_x86_64-3way module */ +extern void twofish_dec_blk_cbc_3way(void *ctx, u128 *dst, const u128 *src); +extern void twofish_enc_blk_ctr(void *ctx, u128 *dst, const u128 *src, + le128 *iv); +extern void twofish_enc_blk_ctr_3way(void *ctx, u128 *dst, const u128 *src, + le128 *iv); + +#endif /* ASM_X86_TWOFISH_H */ |