diff options
Diffstat (limited to 'arch/x86/crypto/twofish_glue_3way.c')
| -rw-r--r-- | arch/x86/crypto/twofish_glue_3way.c | 46 |
1 files changed, 16 insertions, 30 deletions
diff --git a/arch/x86/crypto/twofish_glue_3way.c b/arch/x86/crypto/twofish_glue_3way.c index 25bf5e9b0067..15f9347316c8 100644 --- a/arch/x86/crypto/twofish_glue_3way.c +++ b/arch/x86/crypto/twofish_glue_3way.c @@ -28,22 +28,12 @@ #include <crypto/algapi.h> #include <crypto/twofish.h> #include <crypto/b128ops.h> +#include <asm/crypto/twofish.h> #include <asm/crypto/glue_helper.h> #include <crypto/lrw.h> #include <crypto/xts.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); EXPORT_SYMBOL_GPL(__twofish_enc_blk_3way); -asmlinkage void twofish_dec_blk_3way(struct twofish_ctx *ctx, u8 *dst, - const u8 *src); EXPORT_SYMBOL_GPL(twofish_dec_blk_3way); static inline void twofish_enc_blk_3way(struct twofish_ctx *ctx, u8 *dst, @@ -58,7 +48,7 @@ static inline void twofish_enc_blk_xor_3way(struct twofish_ctx *ctx, u8 *dst, __twofish_enc_blk_3way(ctx, dst, src, true); } -static void twofish_dec_blk_cbc_3way(void *ctx, u128 *dst, const u128 *src) +void twofish_dec_blk_cbc_3way(void *ctx, u128 *dst, const u128 *src) { u128 ivs[2]; @@ -70,8 +60,9 @@ static void twofish_dec_blk_cbc_3way(void *ctx, u128 *dst, const u128 *src) u128_xor(&dst[1], &dst[1], &ivs[0]); u128_xor(&dst[2], &dst[2], &ivs[1]); } +EXPORT_SYMBOL_GPL(twofish_dec_blk_cbc_3way); -static void twofish_enc_blk_ctr(void *ctx, u128 *dst, const u128 *src, u128 *iv) +void twofish_enc_blk_ctr(void *ctx, u128 *dst, const u128 *src, u128 *iv) { be128 ctrblk; @@ -84,8 +75,9 @@ static void twofish_enc_blk_ctr(void *ctx, u128 *dst, const u128 *src, u128 *iv) twofish_enc_blk(ctx, (u8 *)&ctrblk, (u8 *)&ctrblk); u128_xor(dst, dst, (u128 *)&ctrblk); } +EXPORT_SYMBOL_GPL(twofish_enc_blk_ctr); -static void twofish_enc_blk_ctr_3way(void *ctx, u128 *dst, const u128 *src, +void twofish_enc_blk_ctr_3way(void *ctx, u128 *dst, const u128 *src, u128 *iv) { be128 ctrblks[3]; @@ -105,6 +97,7 @@ static void twofish_enc_blk_ctr_3way(void *ctx, u128 *dst, const u128 *src, twofish_enc_blk_xor_3way(ctx, (u8 *)dst, (u8 *)ctrblks); } +EXPORT_SYMBOL_GPL(twofish_enc_blk_ctr_3way); static const struct common_glue_ctx twofish_enc = { .num_funcs = 2, @@ -220,13 +213,8 @@ static void decrypt_callback(void *priv, u8 *srcdst, unsigned int nbytes) twofish_dec_blk(ctx, srcdst, srcdst); } -struct twofish_lrw_ctx { - struct lrw_table_ctx lrw_table; - struct twofish_ctx twofish_ctx; -}; - -static int lrw_twofish_setkey(struct crypto_tfm *tfm, const u8 *key, - unsigned int keylen) +int lrw_twofish_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int keylen) { struct twofish_lrw_ctx *ctx = crypto_tfm_ctx(tfm); int err; @@ -238,6 +226,7 @@ static int lrw_twofish_setkey(struct crypto_tfm *tfm, const u8 *key, return lrw_init_table(&ctx->lrw_table, key + keylen - TF_BLOCK_SIZE); } +EXPORT_SYMBOL_GPL(lrw_twofish_setkey); static int lrw_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes) @@ -273,20 +262,16 @@ static int lrw_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, return lrw_crypt(desc, dst, src, nbytes, &req); } -static void lrw_exit_tfm(struct crypto_tfm *tfm) +void lrw_twofish_exit_tfm(struct crypto_tfm *tfm) { struct twofish_lrw_ctx *ctx = crypto_tfm_ctx(tfm); lrw_free_table(&ctx->lrw_table); } +EXPORT_SYMBOL_GPL(lrw_twofish_exit_tfm); -struct twofish_xts_ctx { - struct twofish_ctx tweak_ctx; - struct twofish_ctx crypt_ctx; -}; - -static int xts_twofish_setkey(struct crypto_tfm *tfm, const u8 *key, - unsigned int keylen) +int xts_twofish_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int keylen) { struct twofish_xts_ctx *ctx = crypto_tfm_ctx(tfm); u32 *flags = &tfm->crt_flags; @@ -309,6 +294,7 @@ static int xts_twofish_setkey(struct crypto_tfm *tfm, const u8 *key, return __twofish_setkey(&ctx->tweak_ctx, key + keylen / 2, keylen / 2, flags); } +EXPORT_SYMBOL_GPL(xts_twofish_setkey); static int xts_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes) @@ -419,7 +405,7 @@ static struct crypto_alg tf_algs[5] = { { .cra_type = &crypto_blkcipher_type, .cra_module = THIS_MODULE, .cra_list = LIST_HEAD_INIT(tf_algs[3].cra_list), - .cra_exit = lrw_exit_tfm, + .cra_exit = lrw_twofish_exit_tfm, .cra_u = { .blkcipher = { .min_keysize = TF_MIN_KEY_SIZE + TF_BLOCK_SIZE, |