mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-20 19:23:57 +08:00
crypto: padlock-aes - convert to skcipher API
Convert the VIA PadLock implementations of AES-ECB and AES-CBC from the deprecated "blkcipher" API to the "skcipher" API. This is needed in order for the blkcipher API to be removed. Signed-off-by: Eric Biggers <ebiggers@google.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Eric Biggers
Herbert Xu
parent
fabdf25388
commit
713b2e7203
@ -10,6 +10,7 @@
|
||||
|
||||
#include <crypto/algapi.h>
|
||||
#include <crypto/aes.h>
|
||||
#include <crypto/internal/skcipher.h>
|
||||
#include <crypto/padlock.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
@ -97,9 +98,9 @@ static inline struct aes_ctx *aes_ctx(struct crypto_tfm *tfm)
|
||||
return aes_ctx_common(crypto_tfm_ctx(tfm));
|
||||
}
|
||||
|
||||
static inline struct aes_ctx *blk_aes_ctx(struct crypto_blkcipher *tfm)
|
||||
static inline struct aes_ctx *skcipher_aes_ctx(struct crypto_skcipher *tfm)
|
||||
{
|
||||
return aes_ctx_common(crypto_blkcipher_ctx(tfm));
|
||||
return aes_ctx_common(crypto_skcipher_ctx(tfm));
|
||||
}
|
||||
|
||||
static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
|
||||
@ -162,6 +163,12 @@ ok:
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int aes_set_key_skcipher(struct crypto_skcipher *tfm, const u8 *in_key,
|
||||
unsigned int key_len)
|
||||
{
|
||||
return aes_set_key(crypto_skcipher_tfm(tfm), in_key, key_len);
|
||||
}
|
||||
|
||||
/* ====== Encryption/decryption routines ====== */
|
||||
|
||||
/* These are the real call to PadLock. */
|
||||
@ -338,25 +345,24 @@ static struct crypto_alg aes_alg = {
|
||||
}
|
||||
};
|
||||
|
||||
static int ecb_aes_encrypt(struct blkcipher_desc *desc,
|
||||
struct scatterlist *dst, struct scatterlist *src,
|
||||
unsigned int nbytes)
|
||||
static int ecb_aes_encrypt(struct skcipher_request *req)
|
||||
{
|
||||
struct aes_ctx *ctx = blk_aes_ctx(desc->tfm);
|
||||
struct blkcipher_walk walk;
|
||||
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
|
||||
struct aes_ctx *ctx = skcipher_aes_ctx(tfm);
|
||||
struct skcipher_walk walk;
|
||||
unsigned int nbytes;
|
||||
int err;
|
||||
|
||||
padlock_reset_key(&ctx->cword.encrypt);
|
||||
|
||||
blkcipher_walk_init(&walk, dst, src, nbytes);
|
||||
err = blkcipher_walk_virt(desc, &walk);
|
||||
err = skcipher_walk_virt(&walk, req, false);
|
||||
|
||||
while ((nbytes = walk.nbytes)) {
|
||||
while ((nbytes = walk.nbytes) != 0) {
|
||||
padlock_xcrypt_ecb(walk.src.virt.addr, walk.dst.virt.addr,
|
||||
ctx->E, &ctx->cword.encrypt,
|
||||
nbytes / AES_BLOCK_SIZE);
|
||||
nbytes &= AES_BLOCK_SIZE - 1;
|
||||
err = blkcipher_walk_done(desc, &walk, nbytes);
|
||||
err = skcipher_walk_done(&walk, nbytes);
|
||||
}
|
||||
|
||||
padlock_store_cword(&ctx->cword.encrypt);
|
||||
@ -364,25 +370,24 @@ static int ecb_aes_encrypt(struct blkcipher_desc *desc,
|
||||
return err;
|
||||
}
|
||||
|
||||
static int ecb_aes_decrypt(struct blkcipher_desc *desc,
|
||||
struct scatterlist *dst, struct scatterlist *src,
|
||||
unsigned int nbytes)
|
||||
static int ecb_aes_decrypt(struct skcipher_request *req)
|
||||
{
|
||||
struct aes_ctx *ctx = blk_aes_ctx(desc->tfm);
|
||||
struct blkcipher_walk walk;
|
||||
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
|
||||
struct aes_ctx *ctx = skcipher_aes_ctx(tfm);
|
||||
struct skcipher_walk walk;
|
||||
unsigned int nbytes;
|
||||
int err;
|
||||
|
||||
padlock_reset_key(&ctx->cword.decrypt);
|
||||
|
||||
blkcipher_walk_init(&walk, dst, src, nbytes);
|
||||
err = blkcipher_walk_virt(desc, &walk);
|
||||
err = skcipher_walk_virt(&walk, req, false);
|
||||
|
||||
while ((nbytes = walk.nbytes)) {
|
||||
while ((nbytes = walk.nbytes) != 0) {
|
||||
padlock_xcrypt_ecb(walk.src.virt.addr, walk.dst.virt.addr,
|
||||
ctx->D, &ctx->cword.decrypt,
|
||||
nbytes / AES_BLOCK_SIZE);
|
||||
nbytes &= AES_BLOCK_SIZE - 1;
|
||||
err = blkcipher_walk_done(desc, &walk, nbytes);
|
||||
err = skcipher_walk_done(&walk, nbytes);
|
||||
}
|
||||
|
||||
padlock_store_cword(&ctx->cword.encrypt);
|
||||
@ -390,48 +395,41 @@ static int ecb_aes_decrypt(struct blkcipher_desc *desc,
|
||||
return err;
|
||||
}
|
||||
|
||||
static struct crypto_alg ecb_aes_alg = {
|
||||
.cra_name = "ecb(aes)",
|
||||
.cra_driver_name = "ecb-aes-padlock",
|
||||
.cra_priority = PADLOCK_COMPOSITE_PRIORITY,
|
||||
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
|
||||
.cra_blocksize = AES_BLOCK_SIZE,
|
||||
.cra_ctxsize = sizeof(struct aes_ctx),
|
||||
.cra_alignmask = PADLOCK_ALIGNMENT - 1,
|
||||
.cra_type = &crypto_blkcipher_type,
|
||||
.cra_module = THIS_MODULE,
|
||||
.cra_u = {
|
||||
.blkcipher = {
|
||||
.min_keysize = AES_MIN_KEY_SIZE,
|
||||
.max_keysize = AES_MAX_KEY_SIZE,
|
||||
.setkey = aes_set_key,
|
||||
.encrypt = ecb_aes_encrypt,
|
||||
.decrypt = ecb_aes_decrypt,
|
||||
}
|
||||
}
|
||||
static struct skcipher_alg ecb_aes_alg = {
|
||||
.base.cra_name = "ecb(aes)",
|
||||
.base.cra_driver_name = "ecb-aes-padlock",
|
||||
.base.cra_priority = PADLOCK_COMPOSITE_PRIORITY,
|
||||
.base.cra_blocksize = AES_BLOCK_SIZE,
|
||||
.base.cra_ctxsize = sizeof(struct aes_ctx),
|
||||
.base.cra_alignmask = PADLOCK_ALIGNMENT - 1,
|
||||
.base.cra_module = THIS_MODULE,
|
||||
.min_keysize = AES_MIN_KEY_SIZE,
|
||||
.max_keysize = AES_MAX_KEY_SIZE,
|
||||
.setkey = aes_set_key_skcipher,
|
||||
.encrypt = ecb_aes_encrypt,
|
||||
.decrypt = ecb_aes_decrypt,
|
||||
};
|
||||
|
||||
static int cbc_aes_encrypt(struct blkcipher_desc *desc,
|
||||
struct scatterlist *dst, struct scatterlist *src,
|
||||
unsigned int nbytes)
|
||||
static int cbc_aes_encrypt(struct skcipher_request *req)
|
||||
{
|
||||
struct aes_ctx *ctx = blk_aes_ctx(desc->tfm);
|
||||
struct blkcipher_walk walk;
|
||||
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
|
||||
struct aes_ctx *ctx = skcipher_aes_ctx(tfm);
|
||||
struct skcipher_walk walk;
|
||||
unsigned int nbytes;
|
||||
int err;
|
||||
|
||||
padlock_reset_key(&ctx->cword.encrypt);
|
||||
|
||||
blkcipher_walk_init(&walk, dst, src, nbytes);
|
||||
err = blkcipher_walk_virt(desc, &walk);
|
||||
err = skcipher_walk_virt(&walk, req, false);
|
||||
|
||||
while ((nbytes = walk.nbytes)) {
|
||||
while ((nbytes = walk.nbytes) != 0) {
|
||||
u8 *iv = padlock_xcrypt_cbc(walk.src.virt.addr,
|
||||
walk.dst.virt.addr, ctx->E,
|
||||
walk.iv, &ctx->cword.encrypt,
|
||||
nbytes / AES_BLOCK_SIZE);
|
||||
memcpy(walk.iv, iv, AES_BLOCK_SIZE);
|
||||
nbytes &= AES_BLOCK_SIZE - 1;
|
||||
err = blkcipher_walk_done(desc, &walk, nbytes);
|
||||
err = skcipher_walk_done(&walk, nbytes);
|
||||
}
|
||||
|
||||
padlock_store_cword(&ctx->cword.decrypt);
|
||||
@ -439,25 +437,24 @@ static int cbc_aes_encrypt(struct blkcipher_desc *desc,
|
||||
return err;
|
||||
}
|
||||
|
||||
static int cbc_aes_decrypt(struct blkcipher_desc *desc,
|
||||
struct scatterlist *dst, struct scatterlist *src,
|
||||
unsigned int nbytes)
|
||||
static int cbc_aes_decrypt(struct skcipher_request *req)
|
||||
{
|
||||
struct aes_ctx *ctx = blk_aes_ctx(desc->tfm);
|
||||
struct blkcipher_walk walk;
|
||||
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
|
||||
struct aes_ctx *ctx = skcipher_aes_ctx(tfm);
|
||||
struct skcipher_walk walk;
|
||||
unsigned int nbytes;
|
||||
int err;
|
||||
|
||||
padlock_reset_key(&ctx->cword.encrypt);
|
||||
|
||||
blkcipher_walk_init(&walk, dst, src, nbytes);
|
||||
err = blkcipher_walk_virt(desc, &walk);
|
||||
err = skcipher_walk_virt(&walk, req, false);
|
||||
|
||||
while ((nbytes = walk.nbytes)) {
|
||||
while ((nbytes = walk.nbytes) != 0) {
|
||||
padlock_xcrypt_cbc(walk.src.virt.addr, walk.dst.virt.addr,
|
||||
ctx->D, walk.iv, &ctx->cword.decrypt,
|
||||
nbytes / AES_BLOCK_SIZE);
|
||||
nbytes &= AES_BLOCK_SIZE - 1;
|
||||
err = blkcipher_walk_done(desc, &walk, nbytes);
|
||||
err = skcipher_walk_done(&walk, nbytes);
|
||||
}
|
||||
|
||||
padlock_store_cword(&ctx->cword.encrypt);
|
||||
@ -465,26 +462,20 @@ static int cbc_aes_decrypt(struct blkcipher_desc *desc,
|
||||
return err;
|
||||
}
|
||||
|
||||
static struct crypto_alg cbc_aes_alg = {
|
||||
.cra_name = "cbc(aes)",
|
||||
.cra_driver_name = "cbc-aes-padlock",
|
||||
.cra_priority = PADLOCK_COMPOSITE_PRIORITY,
|
||||
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
|
||||
.cra_blocksize = AES_BLOCK_SIZE,
|
||||
.cra_ctxsize = sizeof(struct aes_ctx),
|
||||
.cra_alignmask = PADLOCK_ALIGNMENT - 1,
|
||||
.cra_type = &crypto_blkcipher_type,
|
||||
.cra_module = THIS_MODULE,
|
||||
.cra_u = {
|
||||
.blkcipher = {
|
||||
.min_keysize = AES_MIN_KEY_SIZE,
|
||||
.max_keysize = AES_MAX_KEY_SIZE,
|
||||
.ivsize = AES_BLOCK_SIZE,
|
||||
.setkey = aes_set_key,
|
||||
.encrypt = cbc_aes_encrypt,
|
||||
.decrypt = cbc_aes_decrypt,
|
||||
}
|
||||
}
|
||||
static struct skcipher_alg cbc_aes_alg = {
|
||||
.base.cra_name = "cbc(aes)",
|
||||
.base.cra_driver_name = "cbc-aes-padlock",
|
||||
.base.cra_priority = PADLOCK_COMPOSITE_PRIORITY,
|
||||
.base.cra_blocksize = AES_BLOCK_SIZE,
|
||||
.base.cra_ctxsize = sizeof(struct aes_ctx),
|
||||
.base.cra_alignmask = PADLOCK_ALIGNMENT - 1,
|
||||
.base.cra_module = THIS_MODULE,
|
||||
.min_keysize = AES_MIN_KEY_SIZE,
|
||||
.max_keysize = AES_MAX_KEY_SIZE,
|
||||
.ivsize = AES_BLOCK_SIZE,
|
||||
.setkey = aes_set_key_skcipher,
|
||||
.encrypt = cbc_aes_encrypt,
|
||||
.decrypt = cbc_aes_decrypt,
|
||||
};
|
||||
|
||||
static const struct x86_cpu_id padlock_cpu_id[] = {
|
||||
@ -506,13 +497,13 @@ static int __init padlock_init(void)
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
if ((ret = crypto_register_alg(&aes_alg)))
|
||||
if ((ret = crypto_register_alg(&aes_alg)) != 0)
|
||||
goto aes_err;
|
||||
|
||||
if ((ret = crypto_register_alg(&ecb_aes_alg)))
|
||||
if ((ret = crypto_register_skcipher(&ecb_aes_alg)) != 0)
|
||||
goto ecb_aes_err;
|
||||
|
||||
if ((ret = crypto_register_alg(&cbc_aes_alg)))
|
||||
if ((ret = crypto_register_skcipher(&cbc_aes_alg)) != 0)
|
||||
goto cbc_aes_err;
|
||||
|
||||
printk(KERN_NOTICE PFX "Using VIA PadLock ACE for AES algorithm.\n");
|
||||
@ -527,7 +518,7 @@ out:
|
||||
return ret;
|
||||
|
||||
cbc_aes_err:
|
||||
crypto_unregister_alg(&ecb_aes_alg);
|
||||
crypto_unregister_skcipher(&ecb_aes_alg);
|
||||
ecb_aes_err:
|
||||
crypto_unregister_alg(&aes_alg);
|
||||
aes_err:
|
||||
@ -537,8 +528,8 @@ aes_err:
|
||||
|
||||
static void __exit padlock_fini(void)
|
||||
{
|
||||
crypto_unregister_alg(&cbc_aes_alg);
|
||||
crypto_unregister_alg(&ecb_aes_alg);
|
||||
crypto_unregister_skcipher(&cbc_aes_alg);
|
||||
crypto_unregister_skcipher(&ecb_aes_alg);
|
||||
crypto_unregister_alg(&aes_alg);
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user