diff options
Diffstat (limited to 'arch/x86/crypto/serpent_avx_glue.c')
| -rw-r--r-- | arch/x86/crypto/serpent_avx_glue.c | 62 |
1 files changed, 42 insertions, 20 deletions
diff --git a/arch/x86/crypto/serpent_avx_glue.c b/arch/x86/crypto/serpent_avx_glue.c index 0f8519cf4ac2..9ae83cf8d21e 100644 --- a/arch/x86/crypto/serpent_avx_glue.c +++ b/arch/x86/crypto/serpent_avx_glue.c @@ -41,7 +41,32 @@ #include <asm/crypto/ablk_helper.h> #include <asm/crypto/glue_helper.h> -static void serpent_crypt_ctr(void *ctx, u128 *dst, const u128 *src, le128 *iv) +/* 8-way parallel cipher functions */ +asmlinkage void serpent_ecb_enc_8way_avx(struct serpent_ctx *ctx, u8 *dst, + const u8 *src); +EXPORT_SYMBOL_GPL(serpent_ecb_enc_8way_avx); + +asmlinkage void serpent_ecb_dec_8way_avx(struct serpent_ctx *ctx, u8 *dst, + const u8 *src); +EXPORT_SYMBOL_GPL(serpent_ecb_dec_8way_avx); + +asmlinkage void serpent_cbc_dec_8way_avx(struct serpent_ctx *ctx, u8 *dst, + const u8 *src); +EXPORT_SYMBOL_GPL(serpent_cbc_dec_8way_avx); + +asmlinkage void serpent_ctr_8way_avx(struct serpent_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); +EXPORT_SYMBOL_GPL(serpent_ctr_8way_avx); + +asmlinkage void serpent_xts_enc_8way_avx(struct serpent_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); +EXPORT_SYMBOL_GPL(serpent_xts_enc_8way_avx); + +asmlinkage void serpent_xts_dec_8way_avx(struct serpent_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); +EXPORT_SYMBOL_GPL(serpent_xts_dec_8way_avx); + +void __serpent_crypt_ctr(void *ctx, u128 *dst, const u128 *src, le128 *iv) { be128 ctrblk; @@ -51,18 +76,22 @@ static void serpent_crypt_ctr(void *ctx, u128 *dst, const u128 *src, le128 *iv) __serpent_encrypt(ctx, (u8 *)&ctrblk, (u8 *)&ctrblk); u128_xor(dst, src, (u128 *)&ctrblk); } +EXPORT_SYMBOL_GPL(__serpent_crypt_ctr); -static void serpent_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv) +void serpent_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv) { glue_xts_crypt_128bit_one(ctx, dst, src, iv, GLUE_FUNC_CAST(__serpent_encrypt)); } +EXPORT_SYMBOL_GPL(serpent_xts_enc); -static void serpent_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv) +void serpent_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv) { glue_xts_crypt_128bit_one(ctx, dst, src, iv, GLUE_FUNC_CAST(__serpent_decrypt)); } +EXPORT_SYMBOL_GPL(serpent_xts_dec); + static const struct common_glue_ctx serpent_enc = { .num_funcs = 2, @@ -86,7 +115,7 @@ static const struct common_glue_ctx serpent_ctr = { .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(serpent_ctr_8way_avx) } }, { .num_blocks = 1, - .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(serpent_crypt_ctr) } + .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(__serpent_crypt_ctr) } } } }; @@ -224,13 +253,8 @@ static void decrypt_callback(void *priv, u8 *srcdst, unsigned int nbytes) __serpent_decrypt(ctx->ctx, srcdst, srcdst); } -struct serpent_lrw_ctx { - struct lrw_table_ctx lrw_table; - struct serpent_ctx serpent_ctx; -}; - -static int lrw_serpent_setkey(struct crypto_tfm *tfm, const u8 *key, - unsigned int keylen) +int lrw_serpent_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int keylen) { struct serpent_lrw_ctx *ctx = crypto_tfm_ctx(tfm); int err; @@ -243,6 +267,7 @@ static int lrw_serpent_setkey(struct crypto_tfm *tfm, const u8 *key, return lrw_init_table(&ctx->lrw_table, key + keylen - SERPENT_BLOCK_SIZE); } +EXPORT_SYMBOL_GPL(lrw_serpent_setkey); static int lrw_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes) @@ -296,20 +321,16 @@ static int lrw_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, return ret; } -static void lrw_exit_tfm(struct crypto_tfm *tfm) +void lrw_serpent_exit_tfm(struct crypto_tfm *tfm) { struct serpent_lrw_ctx *ctx = crypto_tfm_ctx(tfm); lrw_free_table(&ctx->lrw_table); } +EXPORT_SYMBOL_GPL(lrw_serpent_exit_tfm); -struct serpent_xts_ctx { - struct serpent_ctx tweak_ctx; - struct serpent_ctx crypt_ctx; -}; - -static int xts_serpent_setkey(struct crypto_tfm *tfm, const u8 *key, - unsigned int keylen) +int xts_serpent_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int keylen) { struct serpent_xts_ctx *ctx = crypto_tfm_ctx(tfm); u32 *flags = &tfm->crt_flags; @@ -331,6 +352,7 @@ static int xts_serpent_setkey(struct crypto_tfm *tfm, const u8 *key, /* second half of xts-key is for tweak */ return __serpent_setkey(&ctx->tweak_ctx, key + keylen / 2, keylen / 2); } +EXPORT_SYMBOL_GPL(xts_serpent_setkey); static int xts_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes) @@ -420,7 +442,7 @@ static struct crypto_alg serpent_algs[10] = { { .cra_alignmask = 0, .cra_type = &crypto_blkcipher_type, .cra_module = THIS_MODULE, - .cra_exit = lrw_exit_tfm, + .cra_exit = lrw_serpent_exit_tfm, .cra_u = { .blkcipher = { .min_keysize = SERPENT_MIN_KEY_SIZE + |