crypto: sparc/camellia - convert to skcipher API
Convert the glue code for the SPARC64 Camellia opcodes implementations of Camellia-ECB and Camellia-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> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>alistair/sunxi64-5.5-dsi
Eric Biggers
Herbert Xu
parent
64db5e7439
commit
c72a26ef6b
|
|
@ -12,6 +12,7 @@
|
|||
#include <linux/mm.h>
|
||||
#include <linux/types.h>
|
||||
#include <crypto/algapi.h>
|
||||
#include <crypto/internal/skcipher.h>
|
||||
|
||||
#include <asm/fpumacro.h>
|
||||
#include <asm/pstate.h>
|
||||
|
|
@ -52,6 +53,12 @@ static int camellia_set_key(struct crypto_tfm *tfm, const u8 *_in_key,
|
|||
return 0;
|
||||
}
|
||||
|
||||
static int camellia_set_key_skcipher(struct crypto_skcipher *tfm,
|
||||
const u8 *in_key, unsigned int key_len)
|
||||
{
|
||||
return camellia_set_key(crypto_skcipher_tfm(tfm), in_key, key_len);
|
||||
}
|
||||
|
||||
extern void camellia_sparc64_crypt(const u64 *key, const u32 *input,
|
||||
u32 *output, unsigned int key_len);
|
||||
|
||||
|
|
@ -81,61 +88,46 @@ typedef void ecb_crypt_op(const u64 *input, u64 *output, unsigned int len,
|
|||
extern ecb_crypt_op camellia_sparc64_ecb_crypt_3_grand_rounds;
|
||||
extern ecb_crypt_op camellia_sparc64_ecb_crypt_4_grand_rounds;
|
||||
|
||||
#define CAMELLIA_BLOCK_MASK (~(CAMELLIA_BLOCK_SIZE - 1))
|
||||
|
||||
static int __ecb_crypt(struct blkcipher_desc *desc,
|
||||
struct scatterlist *dst, struct scatterlist *src,
|
||||
unsigned int nbytes, bool encrypt)
|
||||
static int __ecb_crypt(struct skcipher_request *req, bool encrypt)
|
||||
{
|
||||
struct camellia_sparc64_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
|
||||
struct blkcipher_walk walk;
|
||||
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
|
||||
const struct camellia_sparc64_ctx *ctx = crypto_skcipher_ctx(tfm);
|
||||
struct skcipher_walk walk;
|
||||
ecb_crypt_op *op;
|
||||
const u64 *key;
|
||||
unsigned int nbytes;
|
||||
int err;
|
||||
|
||||
op = camellia_sparc64_ecb_crypt_3_grand_rounds;
|
||||
if (ctx->key_len != 16)
|
||||
op = camellia_sparc64_ecb_crypt_4_grand_rounds;
|
||||
|
||||
blkcipher_walk_init(&walk, dst, src, nbytes);
|
||||
err = blkcipher_walk_virt(desc, &walk);
|
||||
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
|
||||
err = skcipher_walk_virt(&walk, req, true);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
if (encrypt)
|
||||
key = &ctx->encrypt_key[0];
|
||||
else
|
||||
key = &ctx->decrypt_key[0];
|
||||
camellia_sparc64_load_keys(key, ctx->key_len);
|
||||
while ((nbytes = walk.nbytes)) {
|
||||
unsigned int block_len = nbytes & CAMELLIA_BLOCK_MASK;
|
||||
|
||||
if (likely(block_len)) {
|
||||
const u64 *src64;
|
||||
u64 *dst64;
|
||||
|
||||
src64 = (const u64 *)walk.src.virt.addr;
|
||||
dst64 = (u64 *) walk.dst.virt.addr;
|
||||
op(src64, dst64, block_len, key);
|
||||
}
|
||||
nbytes &= CAMELLIA_BLOCK_SIZE - 1;
|
||||
err = blkcipher_walk_done(desc, &walk, nbytes);
|
||||
while ((nbytes = walk.nbytes) != 0) {
|
||||
op(walk.src.virt.addr, walk.dst.virt.addr,
|
||||
round_down(nbytes, CAMELLIA_BLOCK_SIZE), key);
|
||||
err = skcipher_walk_done(&walk, nbytes % CAMELLIA_BLOCK_SIZE);
|
||||
}
|
||||
fprs_write(0);
|
||||
return err;
|
||||
}
|
||||
|
||||
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 __ecb_crypt(desc, dst, src, nbytes, true);
|
||||
return __ecb_crypt(req, true);
|
||||
}
|
||||
|
||||
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 __ecb_crypt(desc, dst, src, nbytes, false);
|
||||
return __ecb_crypt(req, false);
|
||||
}
|
||||
|
||||
typedef void cbc_crypt_op(const u64 *input, u64 *output, unsigned int len,
|
||||
|
|
@ -146,85 +138,65 @@ extern cbc_crypt_op camellia_sparc64_cbc_encrypt_4_grand_rounds;
|
|||
extern cbc_crypt_op camellia_sparc64_cbc_decrypt_3_grand_rounds;
|
||||
extern cbc_crypt_op camellia_sparc64_cbc_decrypt_4_grand_rounds;
|
||||
|
||||
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)
|
||||
{
|
||||
struct camellia_sparc64_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
|
||||
struct blkcipher_walk walk;
|
||||
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
|
||||
const struct camellia_sparc64_ctx *ctx = crypto_skcipher_ctx(tfm);
|
||||
struct skcipher_walk walk;
|
||||
cbc_crypt_op *op;
|
||||
const u64 *key;
|
||||
unsigned int nbytes;
|
||||
int err;
|
||||
|
||||
op = camellia_sparc64_cbc_encrypt_3_grand_rounds;
|
||||
if (ctx->key_len != 16)
|
||||
op = camellia_sparc64_cbc_encrypt_4_grand_rounds;
|
||||
|
||||
blkcipher_walk_init(&walk, dst, src, nbytes);
|
||||
err = blkcipher_walk_virt(desc, &walk);
|
||||
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
|
||||
err = skcipher_walk_virt(&walk, req, true);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
key = &ctx->encrypt_key[0];
|
||||
camellia_sparc64_load_keys(key, ctx->key_len);
|
||||
while ((nbytes = walk.nbytes)) {
|
||||
unsigned int block_len = nbytes & CAMELLIA_BLOCK_MASK;
|
||||
|
||||
if (likely(block_len)) {
|
||||
const u64 *src64;
|
||||
u64 *dst64;
|
||||
|
||||
src64 = (const u64 *)walk.src.virt.addr;
|
||||
dst64 = (u64 *) walk.dst.virt.addr;
|
||||
op(src64, dst64, block_len, key,
|
||||
(u64 *) walk.iv);
|
||||
}
|
||||
nbytes &= CAMELLIA_BLOCK_SIZE - 1;
|
||||
err = blkcipher_walk_done(desc, &walk, nbytes);
|
||||
while ((nbytes = walk.nbytes) != 0) {
|
||||
op(walk.src.virt.addr, walk.dst.virt.addr,
|
||||
round_down(nbytes, CAMELLIA_BLOCK_SIZE), key, walk.iv);
|
||||
err = skcipher_walk_done(&walk, nbytes % CAMELLIA_BLOCK_SIZE);
|
||||
}
|
||||
fprs_write(0);
|
||||
return err;
|
||||
}
|
||||
|
||||
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)
|
||||
{
|
||||
struct camellia_sparc64_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
|
||||
struct blkcipher_walk walk;
|
||||
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
|
||||
const struct camellia_sparc64_ctx *ctx = crypto_skcipher_ctx(tfm);
|
||||
struct skcipher_walk walk;
|
||||
cbc_crypt_op *op;
|
||||
const u64 *key;
|
||||
unsigned int nbytes;
|
||||
int err;
|
||||
|
||||
op = camellia_sparc64_cbc_decrypt_3_grand_rounds;
|
||||
if (ctx->key_len != 16)
|
||||
op = camellia_sparc64_cbc_decrypt_4_grand_rounds;
|
||||
|
||||
blkcipher_walk_init(&walk, dst, src, nbytes);
|
||||
err = blkcipher_walk_virt(desc, &walk);
|
||||
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
|
||||
err = skcipher_walk_virt(&walk, req, true);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
key = &ctx->decrypt_key[0];
|
||||
camellia_sparc64_load_keys(key, ctx->key_len);
|
||||
while ((nbytes = walk.nbytes)) {
|
||||
unsigned int block_len = nbytes & CAMELLIA_BLOCK_MASK;
|
||||
|
||||
if (likely(block_len)) {
|
||||
const u64 *src64;
|
||||
u64 *dst64;
|
||||
|
||||
src64 = (const u64 *)walk.src.virt.addr;
|
||||
dst64 = (u64 *) walk.dst.virt.addr;
|
||||
op(src64, dst64, block_len, key,
|
||||
(u64 *) walk.iv);
|
||||
}
|
||||
nbytes &= CAMELLIA_BLOCK_SIZE - 1;
|
||||
err = blkcipher_walk_done(desc, &walk, nbytes);
|
||||
while ((nbytes = walk.nbytes) != 0) {
|
||||
op(walk.src.virt.addr, walk.dst.virt.addr,
|
||||
round_down(nbytes, CAMELLIA_BLOCK_SIZE), key, walk.iv);
|
||||
err = skcipher_walk_done(&walk, nbytes % CAMELLIA_BLOCK_SIZE);
|
||||
}
|
||||
fprs_write(0);
|
||||
return err;
|
||||
}
|
||||
|
||||
static struct crypto_alg algs[] = { {
|
||||
static struct crypto_alg cipher_alg = {
|
||||
.cra_name = "camellia",
|
||||
.cra_driver_name = "camellia-sparc64",
|
||||
.cra_priority = SPARC_CR_OPCODE_PRIORITY,
|
||||
|
|
@ -242,46 +214,37 @@ static struct crypto_alg algs[] = { {
|
|||
.cia_decrypt = camellia_decrypt
|
||||
}
|
||||
}
|
||||
}, {
|
||||
.cra_name = "ecb(camellia)",
|
||||
.cra_driver_name = "ecb-camellia-sparc64",
|
||||
.cra_priority = SPARC_CR_OPCODE_PRIORITY,
|
||||
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
|
||||
.cra_blocksize = CAMELLIA_BLOCK_SIZE,
|
||||
.cra_ctxsize = sizeof(struct camellia_sparc64_ctx),
|
||||
.cra_alignmask = 7,
|
||||
.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_set_key,
|
||||
.encrypt = ecb_encrypt,
|
||||
.decrypt = ecb_decrypt,
|
||||
},
|
||||
},
|
||||
}, {
|
||||
.cra_name = "cbc(camellia)",
|
||||
.cra_driver_name = "cbc-camellia-sparc64",
|
||||
.cra_priority = SPARC_CR_OPCODE_PRIORITY,
|
||||
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
|
||||
.cra_blocksize = CAMELLIA_BLOCK_SIZE,
|
||||
.cra_ctxsize = sizeof(struct camellia_sparc64_ctx),
|
||||
.cra_alignmask = 7,
|
||||
.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_set_key,
|
||||
.encrypt = cbc_encrypt,
|
||||
.decrypt = cbc_decrypt,
|
||||
},
|
||||
},
|
||||
}
|
||||
};
|
||||
|
||||
static struct skcipher_alg skcipher_algs[] = {
|
||||
{
|
||||
.base.cra_name = "ecb(camellia)",
|
||||
.base.cra_driver_name = "ecb-camellia-sparc64",
|
||||
.base.cra_priority = SPARC_CR_OPCODE_PRIORITY,
|
||||
.base.cra_blocksize = CAMELLIA_BLOCK_SIZE,
|
||||
.base.cra_ctxsize = sizeof(struct camellia_sparc64_ctx),
|
||||
.base.cra_alignmask = 7,
|
||||
.base.cra_module = THIS_MODULE,
|
||||
.min_keysize = CAMELLIA_MIN_KEY_SIZE,
|
||||
.max_keysize = CAMELLIA_MAX_KEY_SIZE,
|
||||
.setkey = camellia_set_key_skcipher,
|
||||
.encrypt = ecb_encrypt,
|
||||
.decrypt = ecb_decrypt,
|
||||
}, {
|
||||
.base.cra_name = "cbc(camellia)",
|
||||
.base.cra_driver_name = "cbc-camellia-sparc64",
|
||||
.base.cra_priority = SPARC_CR_OPCODE_PRIORITY,
|
||||
.base.cra_blocksize = CAMELLIA_BLOCK_SIZE,
|
||||
.base.cra_ctxsize = sizeof(struct camellia_sparc64_ctx),
|
||||
.base.cra_alignmask = 7,
|
||||
.base.cra_module = THIS_MODULE,
|
||||
.min_keysize = CAMELLIA_MIN_KEY_SIZE,
|
||||
.max_keysize = CAMELLIA_MAX_KEY_SIZE,
|
||||
.ivsize = CAMELLIA_BLOCK_SIZE,
|
||||
.setkey = camellia_set_key_skcipher,
|
||||
.encrypt = cbc_encrypt,
|
||||
.decrypt = cbc_decrypt,
|
||||
}
|
||||
};
|
||||
|
||||
static bool __init sparc64_has_camellia_opcode(void)
|
||||
|
|
@ -300,17 +263,27 @@ static bool __init sparc64_has_camellia_opcode(void)
|
|||
|
||||
static int __init camellia_sparc64_mod_init(void)
|
||||
{
|
||||
if (sparc64_has_camellia_opcode()) {
|
||||
pr_info("Using sparc64 camellia opcodes optimized CAMELLIA implementation\n");
|
||||
return crypto_register_algs(algs, ARRAY_SIZE(algs));
|
||||
int err;
|
||||
|
||||
if (!sparc64_has_camellia_opcode()) {
|
||||
pr_info("sparc64 camellia opcodes not available.\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
pr_info("sparc64 camellia opcodes not available.\n");
|
||||
return -ENODEV;
|
||||
pr_info("Using sparc64 camellia opcodes optimized CAMELLIA implementation\n");
|
||||
err = crypto_register_alg(&cipher_alg);
|
||||
if (err)
|
||||
return err;
|
||||
err = crypto_register_skciphers(skcipher_algs,
|
||||
ARRAY_SIZE(skcipher_algs));
|
||||
if (err)
|
||||
crypto_unregister_alg(&cipher_alg);
|
||||
return err;
|
||||
}
|
||||
|
||||
static void __exit camellia_sparc64_mod_fini(void)
|
||||
{
|
||||
crypto_unregister_algs(algs, ARRAY_SIZE(algs));
|
||||
crypto_unregister_alg(&cipher_alg);
|
||||
crypto_unregister_skciphers(skcipher_algs, ARRAY_SIZE(skcipher_algs));
|
||||
}
|
||||
|
||||
module_init(camellia_sparc64_mod_init);
|
||||
|
|
|
|||
|
|
@ -1275,6 +1275,7 @@ config CRYPTO_CAMELLIA_SPARC64
|
|||
depends on SPARC64
|
||||
depends on CRYPTO
|
||||
select CRYPTO_ALGAPI
|
||||
select CRYPTO_BLKCIPHER
|
||||
help
|
||||
Camellia cipher algorithm module (SPARC64).
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue