From: Eric Biggers <ebigg...@google.com>
Convert the x86 asm implementation of Camellia from the (deprecated)
blkcipher interface over to the skcipher interface.
Signed-off-by: Eric Biggers <ebigg...@google.com>
---
arch/x86/crypto/camellia_glue.c | 162 ++++++++++++++++++++--------------------
crypto/Kconfig | 2 +-
2 files changed, 80 insertions(+), 84 deletions(-)
diff --git a/arch/x86/crypto/camellia_glue.c b/arch/x86/crypto/camellia_glue.c
index 804ca69d5d0af..dcd5e0f71b00d 100644
--- a/arch/x86/crypto/camellia_glue.c
+++ b/arch/x86/crypto/camellia_glue.c
@@ -23,7 +23,6 @@
*
*/
-#include <asm/processor.h>
#include <asm/unaligned.h>
#include <linux/crypto.h>
#include <linux/init.h>
@@ -1270,13 +1269,19 @@ int __camellia_setkey(struct camellia_ctx *cctx, const
unsigned char *key,
}
EXPORT_SYMBOL_GPL(__camellia_setkey);
-static int camellia_setkey(struct crypto_tfm *tfm, const u8 *in_key,
+static int camellia_setkey(struct crypto_tfm *tfm, const u8 *key,
unsigned int key_len)
{
- return __camellia_setkey(crypto_tfm_ctx(tfm), in_key, key_len,
+ return __camellia_setkey(crypto_tfm_ctx(tfm), key, key_len,
&tfm->crt_flags);
}
+static int camellia_setkey_skcipher(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int key_len)
+{
+ return camellia_setkey(&tfm->base, key, key_len);
+}
+
void camellia_decrypt_cbc_2way(void *ctx, u128 *dst, const u128 *src)
{
u128 iv = *src;
@@ -1371,39 +1376,33 @@ static const struct common_glue_ctx camellia_dec_cbc = {
} }
};
-static int ecb_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
+static int ecb_encrypt(struct skcipher_request *req)
{
- return glue_ecb_crypt_128bit(&camellia_enc, desc, dst, src, nbytes);
+ return glue_ecb_req_128bit(&camellia_enc, req);
}
-static int ecb_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
+static int ecb_decrypt(struct skcipher_request *req)
{
- return glue_ecb_crypt_128bit(&camellia_dec, desc, dst, src, nbytes);
+ return glue_ecb_req_128bit(&camellia_dec, req);
}
-static int cbc_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
+static int cbc_encrypt(struct skcipher_request *req)
{
- return glue_cbc_encrypt_128bit(GLUE_FUNC_CAST(camellia_enc_blk), desc,
- dst, src, nbytes);
+ return glue_cbc_encrypt_req_128bit(GLUE_FUNC_CAST(camellia_enc_blk),
+ req);
}
-static int cbc_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
+static int cbc_decrypt(struct skcipher_request *req)
{
- return glue_cbc_decrypt_128bit(&camellia_dec_cbc, desc, dst, src,
- nbytes);
+ return glue_cbc_decrypt_req_128bit(&camellia_dec_cbc, req);
}
-static int ctr_crypt(struct blkcipher_desc *desc, struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
+static int ctr_crypt(struct skcipher_request *req)
{
- return glue_ctr_crypt_128bit(&camellia_ctr, desc, dst, src, nbytes);
+ return glue_ctr_req_128bit(&camellia_ctr, req);
}
-static struct crypto_alg camellia_algs[] = { {
+static struct crypto_alg camellia_cipher_alg = {
.cra_name = "camellia",
.cra_driver_name = "camellia-asm",
.cra_priority = 200,
@@ -1421,66 +1420,50 @@ static struct crypto_alg camellia_algs[] = { {
.cia_decrypt = camellia_decrypt
}
}
-}, {
- .cra_name = "ecb(camellia)",
- .cra_driver_name = "ecb-camellia-asm",
- .cra_priority = 300,
- .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
- .cra_blocksize = CAMELLIA_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct camellia_ctx),
- .cra_alignmask = 0,
- .cra_type = &crypto_blkcipher_type,
- .cra_module = THIS_MODULE,
- .cra_u = {
- .blkcipher = {
- .min_keysize = CAMELLIA_MIN_KEY_SIZE,
- .max_keysize = CAMELLIA_MAX_KEY_SIZE,
- .setkey = camellia_setkey,
- .encrypt = ecb_encrypt,
- .decrypt = ecb_decrypt,
- },
- },
-}, {
- .cra_name = "cbc(camellia)",
- .cra_driver_name = "cbc-camellia-asm",
- .cra_priority = 300,
- .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
- .cra_blocksize = CAMELLIA_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct camellia_ctx),
- .cra_alignmask = 0,
- .cra_type = &crypto_blkcipher_type,
- .cra_module = THIS_MODULE,
- .cra_u = {
- .blkcipher = {
- .min_keysize = CAMELLIA_MIN_KEY_SIZE,
- .max_keysize = CAMELLIA_MAX_KEY_SIZE,
- .ivsize = CAMELLIA_BLOCK_SIZE,
- .setkey = camellia_setkey,
- .encrypt = cbc_encrypt,
- .decrypt = cbc_decrypt,
- },
- },
-}, {
- .cra_name = "ctr(camellia)",
- .cra_driver_name = "ctr-camellia-asm",
- .cra_priority = 300,
- .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
- .cra_blocksize = 1,
- .cra_ctxsize = sizeof(struct camellia_ctx),
- .cra_alignmask = 0,
- .cra_type = &crypto_blkcipher_type,
- .cra_module = THIS_MODULE,
- .cra_u = {
- .blkcipher = {
- .min_keysize = CAMELLIA_MIN_KEY_SIZE,
- .max_keysize = CAMELLIA_MAX_KEY_SIZE,
- .ivsize = CAMELLIA_BLOCK_SIZE,
- .setkey = camellia_setkey,
- .encrypt = ctr_crypt,
- .decrypt = ctr_crypt,
- },
- },
-} };
+};
+
+static struct skcipher_alg camellia_skcipher_algs[] = {
+ {
+ .base.cra_name = "ecb(camellia)",
+ .base.cra_driver_name = "ecb-camellia-asm",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = CAMELLIA_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct camellia_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = CAMELLIA_MIN_KEY_SIZE,
+ .max_keysize = CAMELLIA_MAX_KEY_SIZE,
+ .setkey = camellia_setkey_skcipher,
+ .encrypt = ecb_encrypt,
+ .decrypt = ecb_decrypt,
+ }, {
+ .base.cra_name = "cbc(camellia)",
+ .base.cra_driver_name = "cbc-camellia-asm",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = CAMELLIA_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct camellia_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = CAMELLIA_MIN_KEY_SIZE,
+ .max_keysize = CAMELLIA_MAX_KEY_SIZE,
+ .ivsize = CAMELLIA_BLOCK_SIZE,
+ .setkey = camellia_setkey_skcipher,
+ .encrypt = cbc_encrypt,
+ .decrypt = cbc_decrypt,
+ }, {
+ .base.cra_name = "ctr(camellia)",
+ .base.cra_driver_name = "ctr-camellia-asm",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct camellia_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = CAMELLIA_MIN_KEY_SIZE,
+ .max_keysize = CAMELLIA_MAX_KEY_SIZE,
+ .ivsize = CAMELLIA_BLOCK_SIZE,
+ .chunksize = CAMELLIA_BLOCK_SIZE,
+ .setkey = camellia_setkey_skcipher,
+ .encrypt = ctr_crypt,
+ .decrypt = ctr_crypt,
+ }
+};
static bool is_blacklisted_cpu(void)
{
@@ -1506,6 +1489,8 @@ MODULE_PARM_DESC(force, "Force module load, ignore CPU
blacklist");
static int __init init(void)
{
+ int err;
+
if (!force && is_blacklisted_cpu()) {
printk(KERN_INFO
"camellia-x86_64: performance on this CPU "
@@ -1514,12 +1499,23 @@ static int __init init(void)
return -ENODEV;
}
- return crypto_register_algs(camellia_algs, ARRAY_SIZE(camellia_algs));
+ err = crypto_register_alg(&camellia_cipher_alg);
+ if (err)
+ return err;
+
+ err = crypto_register_skciphers(camellia_skcipher_algs,
+ ARRAY_SIZE(camellia_skcipher_algs));
+ if (err)
+ crypto_unregister_alg(&camellia_cipher_alg);
+
+ return err;
}
static void __exit fini(void)
{
- crypto_unregister_algs(camellia_algs, ARRAY_SIZE(camellia_algs));
+ crypto_unregister_alg(&camellia_cipher_alg);
+ crypto_unregister_skciphers(camellia_skcipher_algs,
+ ARRAY_SIZE(camellia_skcipher_algs));
}
module_init(init);
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 354ee503fae2c..4129deeb19e7a 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1145,7 +1145,7 @@ config CRYPTO_CAMELLIA_X86_64
tristate "Camellia cipher algorithm (x86_64)"
depends on X86 && 64BIT
depends on CRYPTO
- select CRYPTO_ALGAPI
+ select CRYPTO_BLKCIPHER
select CRYPTO_GLUE_HELPER_X86
help
Camellia cipher algorithm module (x86_64).
--
2.16.2
