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[CRYPTO] api: Remove deprecated interface

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This patch removes the old cipher interface and related code.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2007-01-27 10:05:15 +11:00
parent ba8da2a948
commit f1ddcaf339
9 changed files with 17 additions and 663 deletions
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2
crypto/algapi.c
View file

@ -396,7 +396,7 @@ struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn)
return ERR_PTR(-EAGAIN);
}
tfm = __crypto_alloc_tfm(alg, 0);
tfm = __crypto_alloc_tfm(alg);
if (IS_ERR(tfm))
crypto_mod_put(alg);

63
crypto/api.c
View file

@ -212,25 +212,6 @@ struct crypto_alg *crypto_alg_mod_lookup(const char *name, u32 type, u32 mask)
}
EXPORT_SYMBOL_GPL(crypto_alg_mod_lookup);
static int crypto_init_flags(struct crypto_tfm *tfm, u32 flags)
{
tfm->crt_flags = flags & CRYPTO_TFM_REQ_MASK;
flags &= ~CRYPTO_TFM_REQ_MASK;
switch (crypto_tfm_alg_type(tfm)) {
case CRYPTO_ALG_TYPE_CIPHER:
return crypto_init_cipher_flags(tfm, flags);
case CRYPTO_ALG_TYPE_DIGEST:
return crypto_init_digest_flags(tfm, flags);
case CRYPTO_ALG_TYPE_COMPRESS:
return crypto_init_compress_flags(tfm, flags);
}
return 0;
}
static int crypto_init_ops(struct crypto_tfm *tfm)
{
const struct crypto_type *type = tfm->__crt_alg->cra_type;
@ -285,7 +266,7 @@ static void crypto_exit_ops(struct crypto_tfm *tfm)
}
}
static unsigned int crypto_ctxsize(struct crypto_alg *alg, int flags)
static unsigned int crypto_ctxsize(struct crypto_alg *alg)
{
const struct crypto_type *type = alg->cra_type;
unsigned int len;
@ -299,15 +280,15 @@ static unsigned int crypto_ctxsize(struct crypto_alg *alg, int flags)
BUG();
case CRYPTO_ALG_TYPE_CIPHER:
len += crypto_cipher_ctxsize(alg, flags);
len += crypto_cipher_ctxsize(alg);
break;
case CRYPTO_ALG_TYPE_DIGEST:
len += crypto_digest_ctxsize(alg, flags);
len += crypto_digest_ctxsize(alg);
break;
case CRYPTO_ALG_TYPE_COMPRESS:
len += crypto_compress_ctxsize(alg, flags);
len += crypto_compress_ctxsize(alg);
break;
}
@ -322,23 +303,19 @@ void crypto_shoot_alg(struct crypto_alg *alg)
}
EXPORT_SYMBOL_GPL(crypto_shoot_alg);
struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 flags)
struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg)
{
struct crypto_tfm *tfm = NULL;
unsigned int tfm_size;
int err = -ENOMEM;
tfm_size = sizeof(*tfm) + crypto_ctxsize(alg, flags);
tfm_size = sizeof(*tfm) + crypto_ctxsize(alg);
tfm = kzalloc(tfm_size, GFP_KERNEL);
if (tfm == NULL)
goto out_err;
tfm->__crt_alg = alg;
err = crypto_init_flags(tfm, flags);
if (err)
goto out_free_tfm;
err = crypto_init_ops(tfm);
if (err)
goto out_free_tfm;
@ -362,31 +339,6 @@ out:
}
EXPORT_SYMBOL_GPL(__crypto_alloc_tfm);
struct crypto_tfm *crypto_alloc_tfm(const char *name, u32 flags)
{
struct crypto_tfm *tfm = NULL;
int err;
do {
struct crypto_alg *alg;
alg = crypto_alg_mod_lookup(name, 0, CRYPTO_ALG_ASYNC);
err = PTR_ERR(alg);
if (IS_ERR(alg))
continue;
tfm = __crypto_alloc_tfm(alg, flags);
err = 0;
if (IS_ERR(tfm)) {
crypto_mod_put(alg);
err = PTR_ERR(tfm);
tfm = NULL;
}
} while (err == -EAGAIN && !signal_pending(current));
return tfm;
}
/*
* crypto_alloc_base - Locate algorithm and allocate transform
* @alg_name: Name of algorithm
@ -420,7 +372,7 @@ struct crypto_tfm *crypto_alloc_base(const char *alg_name, u32 type, u32 mask)
goto err;
}
tfm = __crypto_alloc_tfm(alg, 0);
tfm = __crypto_alloc_tfm(alg);
if (!IS_ERR(tfm))
return tfm;
@ -466,7 +418,6 @@ void crypto_free_tfm(struct crypto_tfm *tfm)
kfree(tfm);
}
EXPORT_SYMBOL_GPL(crypto_alloc_tfm);
EXPORT_SYMBOL_GPL(crypto_free_tfm);
int crypto_has_alg(const char *name, u32 type, u32 mask)

447
crypto/cipher.c
View file

@ -12,274 +12,13 @@
* any later version.
*
*/
#include <linux/compiler.h>
#include <linux/kernel.h>
#include <linux/crypto.h>
#include <linux/errno.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/scatterlist.h>
#include <linux/string.h>
#include <asm/scatterlist.h>
#include "internal.h"
#include "scatterwalk.h"
struct cipher_alg_compat {
unsigned int cia_min_keysize;
unsigned int cia_max_keysize;
int (*cia_setkey)(struct crypto_tfm *tfm, const u8 *key,
unsigned int keylen);
void (*cia_encrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
void (*cia_decrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
unsigned int (*cia_encrypt_ecb)(const struct cipher_desc *desc,
u8 *dst, const u8 *src,
unsigned int nbytes);
unsigned int (*cia_decrypt_ecb)(const struct cipher_desc *desc,
u8 *dst, const u8 *src,
unsigned int nbytes);
unsigned int (*cia_encrypt_cbc)(const struct cipher_desc *desc,
u8 *dst, const u8 *src,
unsigned int nbytes);
unsigned int (*cia_decrypt_cbc)(const struct cipher_desc *desc,
u8 *dst, const u8 *src,
unsigned int nbytes);
};
static inline void xor_64(u8 *a, const u8 *b)
{
((u32 *)a)[0] ^= ((u32 *)b)[0];
((u32 *)a)[1] ^= ((u32 *)b)[1];
}
static inline void xor_128(u8 *a, const u8 *b)
{
((u32 *)a)[0] ^= ((u32 *)b)[0];
((u32 *)a)[1] ^= ((u32 *)b)[1];
((u32 *)a)[2] ^= ((u32 *)b)[2];
((u32 *)a)[3] ^= ((u32 *)b)[3];
}
static unsigned int crypt_slow(const struct cipher_desc *desc,
struct scatter_walk *in,
struct scatter_walk *out, unsigned int bsize)
{
unsigned long alignmask = crypto_tfm_alg_alignmask(desc->tfm);
u8 buffer[bsize * 2 + alignmask];
u8 *src = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
u8 *dst = src + bsize;
scatterwalk_copychunks(src, in, bsize, 0);
desc->prfn(desc, dst, src, bsize);
scatterwalk_copychunks(dst, out, bsize, 1);
return bsize;
}
static inline unsigned int crypt_fast(const struct cipher_desc *desc,
struct scatter_walk *in,
struct scatter_walk *out,
unsigned int nbytes, u8 *tmp)
{
u8 *src, *dst;
u8 *real_src, *real_dst;
real_src = scatterwalk_map(in, 0);
real_dst = scatterwalk_map(out, 1);
src = real_src;
dst = scatterwalk_samebuf(in, out) ? src : real_dst;
if (tmp) {
memcpy(tmp, src, nbytes);
src = tmp;
dst = tmp;
}
nbytes = desc->prfn(desc, dst, src, nbytes);
if (tmp)
memcpy(real_dst, tmp, nbytes);
scatterwalk_unmap(real_src, 0);
scatterwalk_unmap(real_dst, 1);
scatterwalk_advance(in, nbytes);
scatterwalk_advance(out, nbytes);
return nbytes;
}
/*
* Generic encrypt/decrypt wrapper for ciphers, handles operations across
* multiple page boundaries by using temporary blocks. In user context,
* the kernel is given a chance to schedule us once per page.
*/
static int crypt(const struct cipher_desc *desc,
struct scatterlist *dst,
struct scatterlist *src,
unsigned int nbytes)
{
struct scatter_walk walk_in, walk_out;
struct crypto_tfm *tfm = desc->tfm;
const unsigned int bsize = crypto_tfm_alg_blocksize(tfm);
unsigned int alignmask = crypto_tfm_alg_alignmask(tfm);
unsigned long buffer = 0;
if (!nbytes)
return 0;
if (nbytes % bsize) {
tfm->crt_flags |= CRYPTO_TFM_RES_BAD_BLOCK_LEN;
return -EINVAL;
}
scatterwalk_start(&walk_in, src);
scatterwalk_start(&walk_out, dst);
for(;;) {
unsigned int n = nbytes;
u8 *tmp = NULL;
if (!scatterwalk_aligned(&walk_in, alignmask) ||
!scatterwalk_aligned(&walk_out, alignmask)) {
if (!buffer) {
buffer = __get_free_page(GFP_ATOMIC);
if (!buffer)
n = 0;
}
tmp = (u8 *)buffer;
}
n = scatterwalk_clamp(&walk_in, n);
n = scatterwalk_clamp(&walk_out, n);
if (likely(n >= bsize))
n = crypt_fast(desc, &walk_in, &walk_out, n, tmp);
else
n = crypt_slow(desc, &walk_in, &walk_out, bsize);
nbytes -= n;
scatterwalk_done(&walk_in, 0, nbytes);
scatterwalk_done(&walk_out, 1, nbytes);
if (!nbytes)
break;
crypto_yield(tfm->crt_flags);
}
if (buffer)
free_page(buffer);
return 0;
}
static int crypt_iv_unaligned(struct cipher_desc *desc,
struct scatterlist *dst,
struct scatterlist *src,
unsigned int nbytes)
{
struct crypto_tfm *tfm = desc->tfm;
unsigned long alignmask = crypto_tfm_alg_alignmask(tfm);
u8 *iv = desc->info;
if (unlikely(((unsigned long)iv & alignmask))) {
unsigned int ivsize = tfm->crt_cipher.cit_ivsize;
u8 buffer[ivsize + alignmask];
u8 *tmp = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
int err;
desc->info = memcpy(tmp, iv, ivsize);
err = crypt(desc, dst, src, nbytes);
memcpy(iv, tmp, ivsize);
return err;
}
return crypt(desc, dst, src, nbytes);
}
static unsigned int cbc_process_encrypt(const struct cipher_desc *desc,
u8 *dst, const u8 *src,
unsigned int nbytes)
{
struct crypto_tfm *tfm = desc->tfm;
void (*xor)(u8 *, const u8 *) = tfm->crt_u.cipher.cit_xor_block;
int bsize = crypto_tfm_alg_blocksize(tfm);
void (*fn)(struct crypto_tfm *, u8 *, const u8 *) = desc->crfn;
u8 *iv = desc->info;
unsigned int done = 0;
nbytes -= bsize;
do {
xor(iv, src);
fn(tfm, dst, iv);
memcpy(iv, dst, bsize);
src += bsize;
dst += bsize;
} while ((done += bsize) <= nbytes);
return done;
}
static unsigned int cbc_process_decrypt(const struct cipher_desc *desc,
u8 *dst, const u8 *src,
unsigned int nbytes)
{
struct crypto_tfm *tfm = desc->tfm;
void (*xor)(u8 *, const u8 *) = tfm->crt_u.cipher.cit_xor_block;
int bsize = crypto_tfm_alg_blocksize(tfm);
unsigned long alignmask = crypto_tfm_alg_alignmask(desc->tfm);
u8 stack[src == dst ? bsize + alignmask : 0];
u8 *buf = (u8 *)ALIGN((unsigned long)stack, alignmask + 1);
u8 **dst_p = src == dst ? &buf : &dst;
void (*fn)(struct crypto_tfm *, u8 *, const u8 *) = desc->crfn;
u8 *iv = desc->info;
unsigned int done = 0;
nbytes -= bsize;
do {
u8 *tmp_dst = *dst_p;
fn(tfm, tmp_dst, src);
xor(tmp_dst, iv);
memcpy(iv, src, bsize);
if (tmp_dst != dst)
memcpy(dst, tmp_dst, bsize);
src += bsize;
dst += bsize;
} while ((done += bsize) <= nbytes);
return done;
}
static unsigned int ecb_process(const struct cipher_desc *desc, u8 *dst,
const u8 *src, unsigned int nbytes)
{
struct crypto_tfm *tfm = desc->tfm;
int bsize = crypto_tfm_alg_blocksize(tfm);
void (*fn)(struct crypto_tfm *, u8 *, const u8 *) = desc->crfn;
unsigned int done = 0;
nbytes -= bsize;
do {
fn(tfm, dst, src);
src += bsize;
dst += bsize;
} while ((done += bsize) <= nbytes);
return done;
}
static int setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen)
{
@ -293,122 +32,6 @@ static int setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen)
return cia->cia_setkey(tfm, key, keylen);
}
static int ecb_encrypt(struct crypto_tfm *tfm,
struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
{
struct cipher_desc desc;
struct cipher_alg_compat *cipher = (void *)&tfm->__crt_alg->cra_cipher;
desc.tfm = tfm;
desc.crfn = cipher->cia_encrypt;
desc.prfn = cipher->cia_encrypt_ecb ?: ecb_process;
return crypt(&desc, dst, src, nbytes);
}
static int ecb_decrypt(struct crypto_tfm *tfm,
struct scatterlist *dst,
struct scatterlist *src,
unsigned int nbytes)
{
struct cipher_desc desc;
struct cipher_alg_compat *cipher = (void *)&tfm->__crt_alg->cra_cipher;
desc.tfm = tfm;
desc.crfn = cipher->cia_decrypt;
desc.prfn = cipher->cia_decrypt_ecb ?: ecb_process;
return crypt(&desc, dst, src, nbytes);
}
static int cbc_encrypt(struct crypto_tfm *tfm,
struct scatterlist *dst,
struct scatterlist *src,
unsigned int nbytes)
{
struct cipher_desc desc;
struct cipher_alg_compat *cipher = (void *)&tfm->__crt_alg->cra_cipher;
desc.tfm = tfm;
desc.crfn = cipher->cia_encrypt;
desc.prfn = cipher->cia_encrypt_cbc ?: cbc_process_encrypt;
desc.info = tfm->crt_cipher.cit_iv;
return crypt(&desc, dst, src, nbytes);
}
static int cbc_encrypt_iv(struct crypto_tfm *tfm,
struct scatterlist *dst,
struct scatterlist *src,
unsigned int nbytes, u8 *iv)
{
struct cipher_desc desc;
struct cipher_alg_compat *cipher = (void *)&tfm->__crt_alg->cra_cipher;
desc.tfm = tfm;
desc.crfn = cipher->cia_encrypt;
desc.prfn = cipher->cia_encrypt_cbc ?: cbc_process_encrypt;
desc.info = iv;
return crypt_iv_unaligned(&desc, dst, src, nbytes);
}
static int cbc_decrypt(struct crypto_tfm *tfm,
struct scatterlist *dst,
struct scatterlist *src,
unsigned int nbytes)
{
struct cipher_desc desc;
struct cipher_alg_compat *cipher = (void *)&tfm->__crt_alg->cra_cipher;
desc.tfm = tfm;
desc.crfn = cipher->cia_decrypt;
desc.prfn = cipher->cia_decrypt_cbc ?: cbc_process_decrypt;
desc.info = tfm->crt_cipher.cit_iv;
return crypt(&desc, dst, src, nbytes);
}
static int cbc_decrypt_iv(struct crypto_tfm *tfm,
struct scatterlist *dst,
struct scatterlist *src,
unsigned int nbytes, u8 *iv)
{
struct cipher_desc desc;
struct cipher_alg_compat *cipher = (void *)&tfm->__crt_alg->cra_cipher;
desc.tfm = tfm;
desc.crfn = cipher->cia_decrypt;
desc.prfn = cipher->cia_decrypt_cbc ?: cbc_process_decrypt;
desc.info = iv;
return crypt_iv_unaligned(&desc, dst, src, nbytes);
}
static int nocrypt(struct crypto_tfm *tfm,
struct scatterlist *dst,
struct scatterlist *src,
unsigned int nbytes)
{
return -ENOSYS;
}
static int nocrypt_iv(struct crypto_tfm *tfm,
struct scatterlist *dst,
struct scatterlist *src,
unsigned int nbytes, u8 *iv)
{
return -ENOSYS;
}
int crypto_init_cipher_flags(struct crypto_tfm *tfm, u32 flags)
{
u32 mode = flags & CRYPTO_TFM_MODE_MASK;
tfm->crt_cipher.cit_mode = mode ? mode : CRYPTO_TFM_MODE_ECB;
return 0;
}
static void cipher_crypt_unaligned(void (*fn)(struct crypto_tfm *, u8 *,
const u8 *),
struct crypto_tfm *tfm,
@ -454,7 +77,6 @@ static void cipher_decrypt_unaligned(struct crypto_tfm *tfm,
int crypto_init_cipher_ops(struct crypto_tfm *tfm)
{
int ret = 0;
struct cipher_tfm *ops = &tfm->crt_cipher;
struct cipher_alg *cipher = &tfm->__crt_alg->cra_cipher;
@ -464,70 +86,7 @@ int crypto_init_cipher_ops(struct crypto_tfm *tfm)
ops->cit_decrypt_one = crypto_tfm_alg_alignmask(tfm) ?
cipher_decrypt_unaligned : cipher->cia_decrypt;
switch (tfm->crt_cipher.cit_mode) {
case CRYPTO_TFM_MODE_ECB:
ops->cit_encrypt = ecb_encrypt;
ops->cit_decrypt = ecb_decrypt;
ops->cit_encrypt_iv = nocrypt_iv;
ops->cit_decrypt_iv = nocrypt_iv;
break;
case CRYPTO_TFM_MODE_CBC:
ops->cit_encrypt = cbc_encrypt;
ops->cit_decrypt = cbc_decrypt;
ops->cit_encrypt_iv = cbc_encrypt_iv;
ops->cit_decrypt_iv = cbc_decrypt_iv;
break;
case CRYPTO_TFM_MODE_CFB:
ops->cit_encrypt = nocrypt;
ops->cit_decrypt = nocrypt;
ops->cit_encrypt_iv = nocrypt_iv;
ops->cit_decrypt_iv = nocrypt_iv;
break;
case CRYPTO_TFM_MODE_CTR:
ops->cit_encrypt = nocrypt;
ops->cit_decrypt = nocrypt;
ops->cit_encrypt_iv = nocrypt_iv;
ops->cit_decrypt_iv = nocrypt_iv;
break;
default:
BUG();
}
if (ops->cit_mode == CRYPTO_TFM_MODE_CBC) {
unsigned long align;
unsigned long addr;
switch (crypto_tfm_alg_blocksize(tfm)) {
case 8:
ops->cit_xor_block = xor_64;
break;
case 16:
ops->cit_xor_block = xor_128;
break;
default:
printk(KERN_WARNING "%s: block size %u not supported\n",
crypto_tfm_alg_name(tfm),
crypto_tfm_alg_blocksize(tfm));
ret = -EINVAL;
goto out;
}
ops->cit_ivsize = crypto_tfm_alg_blocksize(tfm);
align = crypto_tfm_alg_alignmask(tfm) + 1;
addr = (unsigned long)crypto_tfm_ctx(tfm);
addr = ALIGN(addr, align);
addr += ALIGN(tfm->__crt_alg->cra_ctxsize, align);
ops->cit_iv = (void *)addr;
}
out:
return ret;
return 0;
}
void crypto_exit_cipher_ops(struct crypto_tfm *tfm)

5
crypto/compress.c
View file

@ -34,11 +34,6 @@ static int crypto_decompress(struct crypto_tfm *tfm,
dlen);
}
int crypto_init_compress_flags(struct crypto_tfm *tfm, u32 flags)
{
return flags ? -EINVAL : 0;
}
int crypto_init_compress_ops(struct crypto_tfm *tfm)
{
struct compress_tfm *ops = &tfm->crt_compress;

5
crypto/digest.c
View file

@ -136,11 +136,6 @@ static int digest(struct hash_desc *desc,
return final(desc, out);
}
int crypto_init_digest_flags(struct crypto_tfm *tfm, u32 flags)
{
return flags ? -EINVAL : 0;
}
int crypto_init_digest_ops(struct crypto_tfm *tfm)
{
struct hash_tfm *ops = &tfm->crt_hash;

26
crypto/internal.h
View file

@ -83,8 +83,7 @@ static inline void crypto_exit_proc(void)
{ }
#endif
static inline unsigned int crypto_digest_ctxsize(struct crypto_alg *alg,
int flags)
static inline unsigned int crypto_digest_ctxsize(struct crypto_alg *alg)
{
unsigned int len = alg->cra_ctxsize;
@ -96,23 +95,12 @@ static inline unsigned int crypto_digest_ctxsize(struct crypto_alg *alg,
return len;
}
static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg,
int flags)
static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg)
{
unsigned int len = alg->cra_ctxsize;
switch (flags & CRYPTO_TFM_MODE_MASK) {
case CRYPTO_TFM_MODE_CBC:
len = ALIGN(len, (unsigned long)alg->cra_alignmask + 1);
len += alg->cra_blocksize;
break;
}
return len;
return alg->cra_ctxsize;
}
static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg,
int flags)
static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg)
{
return alg->cra_ctxsize;
}
@ -121,10 +109,6 @@ struct crypto_alg *crypto_mod_get(struct crypto_alg *alg);
struct crypto_alg *__crypto_alg_lookup(const char *name, u32 type, u32 mask);
struct crypto_alg *crypto_alg_mod_lookup(const char *name, u32 type, u32 mask);
int crypto_init_digest_flags(struct crypto_tfm *tfm, u32 flags);
int crypto_init_cipher_flags(struct crypto_tfm *tfm, u32 flags);
int crypto_init_compress_flags(struct crypto_tfm *tfm, u32 flags);
int crypto_init_digest_ops(struct crypto_tfm *tfm);
int crypto_init_cipher_ops(struct crypto_tfm *tfm);
int crypto_init_compress_ops(struct crypto_tfm *tfm);
@ -136,7 +120,7 @@ void crypto_exit_compress_ops(struct crypto_tfm *tfm);
void crypto_larval_error(const char *name, u32 type, u32 mask);
void crypto_shoot_alg(struct crypto_alg *alg);
struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 flags);
struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg);
int crypto_register_instance(struct crypto_template *tmpl,
struct crypto_instance *inst);

4
fs/ecryptfs/crypto.c
View file

@ -828,9 +828,7 @@ int ecryptfs_init_crypt_ctx(struct ecryptfs_crypt_stat *crypt_stat)
mutex_unlock(&crypt_stat->cs_tfm_mutex);
goto out;
}
crypto_blkcipher_set_flags(crypt_stat->tfm,
(ECRYPTFS_DEFAULT_CHAINING_MODE
| CRYPTO_TFM_REQ_WEAK_KEY));
crypto_blkcipher_set_flags(crypt_stat->tfm, CRYPTO_TFM_REQ_WEAK_KEY);
mutex_unlock(&crypt_stat->cs_tfm_mutex);
rc = 0;
out:

1
fs/ecryptfs/ecryptfs_kernel.h
View file

@ -176,7 +176,6 @@ ecryptfs_get_key_payload_data(struct key *key)
#define ECRYPTFS_FILE_SIZE_BYTES 8
#define ECRYPTFS_DEFAULT_CIPHER "aes"
#define ECRYPTFS_DEFAULT_KEY_BYTES 16
#define ECRYPTFS_DEFAULT_CHAINING_MODE CRYPTO_TFM_MODE_CBC
#define ECRYPTFS_DEFAULT_HASH "md5"
#define ECRYPTFS_TAG_3_PACKET_TYPE 0x8C
#define ECRYPTFS_TAG_11_PACKET_TYPE 0xED

127
include/linux/crypto.h
View file

@ -51,15 +51,9 @@
/*
* Transform masks and values (for crt_flags).
*/
#define CRYPTO_TFM_MODE_MASK 0x000000ff
#define CRYPTO_TFM_REQ_MASK 0x000fff00
#define CRYPTO_TFM_RES_MASK 0xfff00000
#define CRYPTO_TFM_MODE_ECB 0x00000001
#define CRYPTO_TFM_MODE_CBC 0x00000002
#define CRYPTO_TFM_MODE_CFB 0x00000004
#define CRYPTO_TFM_MODE_CTR 0x00000008
#define CRYPTO_TFM_REQ_WEAK_KEY 0x00000100
#define CRYPTO_TFM_REQ_MAY_SLEEP 0x00000200
#define CRYPTO_TFM_RES_WEAK_KEY 0x00100000
@ -71,12 +65,8 @@
/*
* Miscellaneous stuff.
*/
#define CRYPTO_UNSPEC 0
#define CRYPTO_MAX_ALG_NAME 64
#define CRYPTO_DIR_ENCRYPT 1
#define CRYPTO_DIR_DECRYPT 0
/*
* The macro CRYPTO_MINALIGN_ATTR (along with the void * type in the actual
* declaration) is used to ensure that the crypto_tfm context structure is
@ -148,19 +138,6 @@ struct cipher_alg {
unsigned int keylen);
void (*cia_encrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
void (*cia_decrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
unsigned int (*cia_encrypt_ecb)(const struct cipher_desc *desc,
u8 *dst, const u8 *src,
unsigned int nbytes) __deprecated;
unsigned int (*cia_decrypt_ecb)(const struct cipher_desc *desc,
u8 *dst, const u8 *src,
unsigned int nbytes) __deprecated;
unsigned int (*cia_encrypt_cbc)(const struct cipher_desc *desc,
u8 *dst, const u8 *src,
unsigned int nbytes) __deprecated;
unsigned int (*cia_decrypt_cbc)(const struct cipher_desc *desc,
u8 *dst, const u8 *src,
unsigned int nbytes) __deprecated;
};
struct digest_alg {
@ -243,11 +220,6 @@ int crypto_unregister_alg(struct crypto_alg *alg);
#ifdef CONFIG_CRYPTO
int crypto_has_alg(const char *name, u32 type, u32 mask);
#else
static inline int crypto_alg_available(const char *name, u32 flags)
{
return 0;
}
static inline int crypto_has_alg(const char *name, u32 type, u32 mask)
{
return 0;
@ -395,40 +367,11 @@ static inline u32 crypto_tfm_alg_type(struct crypto_tfm *tfm)
return tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK;
}
static unsigned int crypto_tfm_alg_min_keysize(struct crypto_tfm *tfm)
__deprecated;
static inline unsigned int crypto_tfm_alg_min_keysize(struct crypto_tfm *tfm)
{
BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
return tfm->__crt_alg->cra_cipher.cia_min_keysize;
}
static unsigned int crypto_tfm_alg_max_keysize(struct crypto_tfm *tfm)
__deprecated;
static inline unsigned int crypto_tfm_alg_max_keysize(struct crypto_tfm *tfm)
{
BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
return tfm->__crt_alg->cra_cipher.cia_max_keysize;
}
static unsigned int crypto_tfm_alg_ivsize(struct crypto_tfm *tfm) __deprecated;
static inline unsigned int crypto_tfm_alg_ivsize(struct crypto_tfm *tfm)
{
BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
return tfm->crt_cipher.cit_ivsize;
}
static inline unsigned int crypto_tfm_alg_blocksize(struct crypto_tfm *tfm)
{
return tfm->__crt_alg->cra_blocksize;
}
static inline unsigned int crypto_tfm_alg_digestsize(struct crypto_tfm *tfm)
{
BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_DIGEST);
return tfm->__crt_alg->cra_digest.dia_digestsize;
}
static inline unsigned int crypto_tfm_alg_alignmask(struct crypto_tfm *tfm)
{
return tfm->__crt_alg->cra_alignmask;
@ -809,76 +752,6 @@ static inline int crypto_hash_setkey(struct crypto_hash *hash,
return crypto_hash_crt(hash)->setkey(hash, key, keylen);
}
static int crypto_cipher_encrypt(struct crypto_tfm *tfm,
struct scatterlist *dst,
struct scatterlist *src,
unsigned int nbytes) __deprecated;
static inline int crypto_cipher_encrypt(struct crypto_tfm *tfm,
struct scatterlist *dst,
struct scatterlist *src,
unsigned int nbytes)
{
BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
return tfm->crt_cipher.cit_encrypt(tfm, dst, src, nbytes);
}
static int crypto_cipher_encrypt_iv(struct crypto_tfm *tfm,
struct scatterlist *dst,
struct scatterlist *src,
unsigned int nbytes, u8 *iv) __deprecated;
static inline int crypto_cipher_encrypt_iv(struct crypto_tfm *tfm,
struct scatterlist *dst,
struct scatterlist *src,
unsigned int nbytes, u8 *iv)
{
BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
return tfm->crt_cipher.cit_encrypt_iv(tfm, dst, src, nbytes, iv);
}
static int crypto_cipher_decrypt(struct crypto_tfm *tfm,
struct scatterlist *dst,
struct scatterlist *src,
unsigned int nbytes) __deprecated;
static inline int crypto_cipher_decrypt(struct crypto_tfm *tfm,
struct scatterlist *dst,
struct scatterlist *src,
unsigned int nbytes)
{
BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
return tfm->crt_cipher.cit_decrypt(tfm, dst, src, nbytes);
}
static int crypto_cipher_decrypt_iv(struct crypto_tfm *tfm,
struct scatterlist *dst,
struct scatterlist *src,
unsigned int nbytes, u8 *iv) __deprecated;
static inline int crypto_cipher_decrypt_iv(struct crypto_tfm *tfm,
struct scatterlist *dst,
struct scatterlist *src,
unsigned int nbytes, u8 *iv)
{
BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
return tfm->crt_cipher.cit_decrypt_iv(tfm, dst, src, nbytes, iv);
}
static void crypto_cipher_set_iv(struct crypto_tfm *tfm,
const u8 *src, unsigned int len) __deprecated;
static inline void crypto_cipher_set_iv(struct crypto_tfm *tfm,
const u8 *src, unsigned int len)
{
BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
memcpy(tfm->crt_cipher.cit_iv, src, len);
}
static void crypto_cipher_get_iv(struct crypto_tfm *tfm,
u8 *dst, unsigned int len) __deprecated;
static inline void crypto_cipher_get_iv(struct crypto_tfm *tfm,
u8 *dst, unsigned int len)
{
BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
memcpy(dst, tfm->crt_cipher.cit_iv, len);
}
static inline struct crypto_comp *__crypto_comp_cast(struct crypto_tfm *tfm)
{
return (struct crypto_comp *)tfm;