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crypto: vmx - Reindent to kernel style

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This patch reidents the vmx code-base to the kernel coding style.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu
2015-06-15 16:55:46 +08:00
parent 0903e435ba
commit 4beb106045
6 changed files with 484 additions and 460 deletions
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240
drivers/crypto/vmx/aes_cbc.c
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@@ -31,154 +31,162 @@
#include "aesp8-ppc.h"
struct p8_aes_cbc_ctx {
struct crypto_blkcipher *fallback;
struct aes_key enc_key;
struct aes_key dec_key;
struct crypto_blkcipher *fallback;
struct aes_key enc_key;
struct aes_key dec_key;
};
static int p8_aes_cbc_init(struct crypto_tfm *tfm)
{
const char *alg;
struct crypto_blkcipher *fallback;
struct p8_aes_cbc_ctx *ctx = crypto_tfm_ctx(tfm);
const char *alg;
struct crypto_blkcipher *fallback;
struct p8_aes_cbc_ctx *ctx = crypto_tfm_ctx(tfm);
if (!(alg = crypto_tfm_alg_name(tfm))) {
printk(KERN_ERR "Failed to get algorithm name.\n");
return -ENOENT;
}
if (!(alg = crypto_tfm_alg_name(tfm))) {
printk(KERN_ERR "Failed to get algorithm name.\n");
return -ENOENT;
}
fallback = crypto_alloc_blkcipher(alg, 0 ,CRYPTO_ALG_NEED_FALLBACK);
if (IS_ERR(fallback)) {
printk(KERN_ERR "Failed to allocate transformation for '%s': %ld\n",
alg, PTR_ERR(fallback));
return PTR_ERR(fallback);
}
printk(KERN_INFO "Using '%s' as fallback implementation.\n",
crypto_tfm_alg_driver_name((struct crypto_tfm *) fallback));
fallback =
crypto_alloc_blkcipher(alg, 0, CRYPTO_ALG_NEED_FALLBACK);
if (IS_ERR(fallback)) {
printk(KERN_ERR
"Failed to allocate transformation for '%s': %ld\n",
alg, PTR_ERR(fallback));
return PTR_ERR(fallback);
}
printk(KERN_INFO "Using '%s' as fallback implementation.\n",
crypto_tfm_alg_driver_name((struct crypto_tfm *) fallback));
crypto_blkcipher_set_flags(fallback,
crypto_blkcipher_get_flags((struct crypto_blkcipher *) tfm));
ctx->fallback = fallback;
crypto_blkcipher_set_flags(
fallback,
crypto_blkcipher_get_flags((struct crypto_blkcipher *)tfm));
ctx->fallback = fallback;
return 0;
return 0;
}
static void p8_aes_cbc_exit(struct crypto_tfm *tfm)
{
struct p8_aes_cbc_ctx *ctx = crypto_tfm_ctx(tfm);
struct p8_aes_cbc_ctx *ctx = crypto_tfm_ctx(tfm);
if (ctx->fallback) {
crypto_free_blkcipher(ctx->fallback);
ctx->fallback = NULL;
}
if (ctx->fallback) {
crypto_free_blkcipher(ctx->fallback);
ctx->fallback = NULL;
}
}
static int p8_aes_cbc_setkey(struct crypto_tfm *tfm, const u8 *key,
unsigned int keylen)
unsigned int keylen)
{
int ret;
struct p8_aes_cbc_ctx *ctx = crypto_tfm_ctx(tfm);
int ret;
struct p8_aes_cbc_ctx *ctx = crypto_tfm_ctx(tfm);
pagefault_disable();
enable_kernel_altivec();
ret = aes_p8_set_encrypt_key(key, keylen * 8, &ctx->enc_key);
ret += aes_p8_set_decrypt_key(key, keylen * 8, &ctx->dec_key);
pagefault_enable();
pagefault_disable();
enable_kernel_altivec();
ret = aes_p8_set_encrypt_key(key, keylen * 8, &ctx->enc_key);
ret += aes_p8_set_decrypt_key(key, keylen * 8, &ctx->dec_key);
pagefault_enable();
ret += crypto_blkcipher_setkey(ctx->fallback, key, keylen);
return ret;
ret += crypto_blkcipher_setkey(ctx->fallback, key, keylen);
return ret;
}
static int p8_aes_cbc_encrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
{
int ret;
struct blkcipher_walk walk;
struct p8_aes_cbc_ctx *ctx = crypto_tfm_ctx(
crypto_blkcipher_tfm(desc->tfm));
struct blkcipher_desc fallback_desc = {
.tfm = ctx->fallback,
.info = desc->info,
.flags = desc->flags
};
int ret;
struct blkcipher_walk walk;
struct p8_aes_cbc_ctx *ctx =
crypto_tfm_ctx(crypto_blkcipher_tfm(desc->tfm));
struct blkcipher_desc fallback_desc = {
.tfm = ctx->fallback,
.info = desc->info,
.flags = desc->flags
};
if (in_interrupt()) {
ret = crypto_blkcipher_encrypt(&fallback_desc, dst, src, nbytes);
} else {
pagefault_disable();
enable_kernel_altivec();
if (in_interrupt()) {
ret = crypto_blkcipher_encrypt(&fallback_desc, dst, src,
nbytes);
} else {
pagefault_disable();
enable_kernel_altivec();
blkcipher_walk_init(&walk, dst, src, nbytes);
ret = blkcipher_walk_virt(desc, &walk);
while ((nbytes = walk.nbytes)) {
aes_p8_cbc_encrypt(walk.src.virt.addr, walk.dst.virt.addr,
nbytes & AES_BLOCK_MASK, &ctx->enc_key, walk.iv, 1);
nbytes &= AES_BLOCK_SIZE - 1;
ret = blkcipher_walk_done(desc, &walk, nbytes);
}
pagefault_enable();
}
return ret;
}
static int p8_aes_cbc_decrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
{
int ret;
struct blkcipher_walk walk;
struct p8_aes_cbc_ctx *ctx = crypto_tfm_ctx(
crypto_blkcipher_tfm(desc->tfm));
struct blkcipher_desc fallback_desc = {
.tfm = ctx->fallback,
.info = desc->info,
.flags = desc->flags
};
if (in_interrupt()) {
ret = crypto_blkcipher_decrypt(&fallback_desc, dst, src, nbytes);
} else {
pagefault_disable();
enable_kernel_altivec();
blkcipher_walk_init(&walk, dst, src, nbytes);
ret = blkcipher_walk_virt(desc, &walk);
while ((nbytes = walk.nbytes)) {
aes_p8_cbc_encrypt(walk.src.virt.addr, walk.dst.virt.addr,
nbytes & AES_BLOCK_MASK, &ctx->dec_key, walk.iv, 0);
blkcipher_walk_init(&walk, dst, src, nbytes);
ret = blkcipher_walk_virt(desc, &walk);
while ((nbytes = walk.nbytes)) {
aes_p8_cbc_encrypt(walk.src.virt.addr,
walk.dst.virt.addr,
nbytes & AES_BLOCK_MASK,
&ctx->enc_key, walk.iv, 1);
nbytes &= AES_BLOCK_SIZE - 1;
ret = blkcipher_walk_done(desc, &walk, nbytes);
}
pagefault_enable();
}
pagefault_enable();
}
return ret;
return ret;
}
static int p8_aes_cbc_decrypt(struct blkcipher_desc *desc,
struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
{
int ret;
struct blkcipher_walk walk;
struct p8_aes_cbc_ctx *ctx =
crypto_tfm_ctx(crypto_blkcipher_tfm(desc->tfm));
struct blkcipher_desc fallback_desc = {
.tfm = ctx->fallback,
.info = desc->info,
.flags = desc->flags
};
if (in_interrupt()) {
ret = crypto_blkcipher_decrypt(&fallback_desc, dst, src,
nbytes);
} else {
pagefault_disable();
enable_kernel_altivec();
blkcipher_walk_init(&walk, dst, src, nbytes);
ret = blkcipher_walk_virt(desc, &walk);
while ((nbytes = walk.nbytes)) {
aes_p8_cbc_encrypt(walk.src.virt.addr,
walk.dst.virt.addr,
nbytes & AES_BLOCK_MASK,
&ctx->dec_key, walk.iv, 0);
nbytes &= AES_BLOCK_SIZE - 1;
ret = blkcipher_walk_done(desc, &walk, nbytes);
}
pagefault_enable();
}
return ret;
}
struct crypto_alg p8_aes_cbc_alg = {
.cra_name = "cbc(aes)",
.cra_driver_name = "p8_aes_cbc",
.cra_module = THIS_MODULE,
.cra_priority = 1000,
.cra_type = &crypto_blkcipher_type,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER | CRYPTO_ALG_NEED_FALLBACK,
.cra_alignmask = 0,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct p8_aes_cbc_ctx),
.cra_init = p8_aes_cbc_init,
.cra_exit = p8_aes_cbc_exit,
.cra_blkcipher = {
.ivsize = 0,
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.setkey = p8_aes_cbc_setkey,
.encrypt = p8_aes_cbc_encrypt,
.decrypt = p8_aes_cbc_decrypt,
},
.cra_name = "cbc(aes)",
.cra_driver_name = "p8_aes_cbc",
.cra_module = THIS_MODULE,
.cra_priority = 1000,
.cra_type = &crypto_blkcipher_type,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER | CRYPTO_ALG_NEED_FALLBACK,
.cra_alignmask = 0,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct p8_aes_cbc_ctx),
.cra_init = p8_aes_cbc_init,
.cra_exit = p8_aes_cbc_exit,
.cra_blkcipher = {
.ivsize = 0,
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.setkey = p8_aes_cbc_setkey,
.encrypt = p8_aes_cbc_encrypt,
.decrypt = p8_aes_cbc_decrypt,
},
};