Merge master.kernel.org:/pub/scm/linux/kernel/git/herbert/crypto-2.6

Conflicts:

	crypto/Kconfig
This commit is contained in:
David S. Miller 2007-07-14 23:47:04 -07:00
commit d09f51b699
8 changed files with 125 additions and 34 deletions

View file

@ -12,9 +12,7 @@ source "crypto/async_tx/Kconfig"
# #
# Cryptographic API Configuration # Cryptographic API Configuration
# #
menu "Cryptographic options" menuconfig CRYPTO
config CRYPTO
bool "Cryptographic API" bool "Cryptographic API"
help help
This option provides the core Cryptographic API. This option provides the core Cryptographic API.
@ -473,5 +471,3 @@ config CRYPTO_TEST
source "drivers/crypto/Kconfig" source "drivers/crypto/Kconfig"
endif # if CRYPTO endif # if CRYPTO
endmenu

View file

@ -19,16 +19,41 @@
#include <linux/module.h> #include <linux/module.h>
#include <linux/seq_file.h> #include <linux/seq_file.h>
static int setkey_unaligned(struct crypto_ablkcipher *tfm, const u8 *key, unsigned int keylen)
{
struct ablkcipher_alg *cipher = crypto_ablkcipher_alg(tfm);
unsigned long alignmask = crypto_ablkcipher_alignmask(tfm);
int ret;
u8 *buffer, *alignbuffer;
unsigned long absize;
absize = keylen + alignmask;
buffer = kmalloc(absize, GFP_ATOMIC);
if (!buffer)
return -ENOMEM;
alignbuffer = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
memcpy(alignbuffer, key, keylen);
ret = cipher->setkey(tfm, alignbuffer, keylen);
memset(alignbuffer, 0, absize);
kfree(buffer);
return ret;
}
static int setkey(struct crypto_ablkcipher *tfm, const u8 *key, static int setkey(struct crypto_ablkcipher *tfm, const u8 *key,
unsigned int keylen) unsigned int keylen)
{ {
struct ablkcipher_alg *cipher = crypto_ablkcipher_alg(tfm); struct ablkcipher_alg *cipher = crypto_ablkcipher_alg(tfm);
unsigned long alignmask = crypto_ablkcipher_alignmask(tfm);
if (keylen < cipher->min_keysize || keylen > cipher->max_keysize) { if (keylen < cipher->min_keysize || keylen > cipher->max_keysize) {
crypto_ablkcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN); crypto_ablkcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL; return -EINVAL;
} }
if ((unsigned long)key & alignmask)
return setkey_unaligned(tfm, key, keylen);
return cipher->setkey(tfm, key, keylen); return cipher->setkey(tfm, key, keylen);
} }
@ -66,8 +91,10 @@ static void crypto_ablkcipher_show(struct seq_file *m, struct crypto_alg *alg)
seq_printf(m, "min keysize : %u\n", ablkcipher->min_keysize); seq_printf(m, "min keysize : %u\n", ablkcipher->min_keysize);
seq_printf(m, "max keysize : %u\n", ablkcipher->max_keysize); seq_printf(m, "max keysize : %u\n", ablkcipher->max_keysize);
seq_printf(m, "ivsize : %u\n", ablkcipher->ivsize); seq_printf(m, "ivsize : %u\n", ablkcipher->ivsize);
seq_printf(m, "qlen : %u\n", ablkcipher->queue->qlen); if (ablkcipher->queue) {
seq_printf(m, "max qlen : %u\n", ablkcipher->queue->max_qlen); seq_printf(m, "qlen : %u\n", ablkcipher->queue->qlen);
seq_printf(m, "max qlen : %u\n", ablkcipher->queue->max_qlen);
}
} }
const struct crypto_type crypto_ablkcipher_type = { const struct crypto_type crypto_ablkcipher_type = {

View file

@ -34,7 +34,7 @@ void crypto_larval_error(const char *name, u32 type, u32 mask)
if (alg) { if (alg) {
if (crypto_is_larval(alg)) { if (crypto_is_larval(alg)) {
struct crypto_larval *larval = (void *)alg; struct crypto_larval *larval = (void *)alg;
complete(&larval->completion); complete_all(&larval->completion);
} }
crypto_mod_put(alg); crypto_mod_put(alg);
} }
@ -164,7 +164,7 @@ static int __crypto_register_alg(struct crypto_alg *alg,
continue; continue;
larval->adult = alg; larval->adult = alg;
complete(&larval->completion); complete_all(&larval->completion);
continue; continue;
} }

View file

@ -144,7 +144,7 @@ static void crypto_larval_kill(struct crypto_alg *alg)
down_write(&crypto_alg_sem); down_write(&crypto_alg_sem);
list_del(&alg->cra_list); list_del(&alg->cra_list);
up_write(&crypto_alg_sem); up_write(&crypto_alg_sem);
complete(&larval->completion); complete_all(&larval->completion);
crypto_alg_put(alg); crypto_alg_put(alg);
} }

View file

@ -336,16 +336,41 @@ static int blkcipher_walk_first(struct blkcipher_desc *desc,
return blkcipher_walk_next(desc, walk); return blkcipher_walk_next(desc, walk);
} }
static int setkey_unaligned(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen)
{
struct blkcipher_alg *cipher = &tfm->__crt_alg->cra_blkcipher;
unsigned long alignmask = crypto_tfm_alg_alignmask(tfm);
int ret;
u8 *buffer, *alignbuffer;
unsigned long absize;
absize = keylen + alignmask;
buffer = kmalloc(absize, GFP_ATOMIC);
if (!buffer)
return -ENOMEM;
alignbuffer = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
memcpy(alignbuffer, key, keylen);
ret = cipher->setkey(tfm, alignbuffer, keylen);
memset(alignbuffer, 0, absize);
kfree(buffer);
return ret;
}
static int setkey(struct crypto_tfm *tfm, const u8 *key, static int setkey(struct crypto_tfm *tfm, const u8 *key,
unsigned int keylen) unsigned int keylen)
{ {
struct blkcipher_alg *cipher = &tfm->__crt_alg->cra_blkcipher; struct blkcipher_alg *cipher = &tfm->__crt_alg->cra_blkcipher;
unsigned long alignmask = crypto_tfm_alg_alignmask(tfm);
if (keylen < cipher->min_keysize || keylen > cipher->max_keysize) { if (keylen < cipher->min_keysize || keylen > cipher->max_keysize) {
tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
return -EINVAL; return -EINVAL;
} }
if ((unsigned long)key & alignmask)
return setkey_unaligned(tfm, key, keylen);
return cipher->setkey(tfm, key, keylen); return cipher->setkey(tfm, key, keylen);
} }

View file

@ -20,16 +20,43 @@
#include <linux/string.h> #include <linux/string.h>
#include "internal.h" #include "internal.h"
static int setkey_unaligned(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen)
{
struct cipher_alg *cia = &tfm->__crt_alg->cra_cipher;
unsigned long alignmask = crypto_tfm_alg_alignmask(tfm);
int ret;
u8 *buffer, *alignbuffer;
unsigned long absize;
absize = keylen + alignmask;
buffer = kmalloc(absize, GFP_ATOMIC);
if (!buffer)
return -ENOMEM;
alignbuffer = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
memcpy(alignbuffer, key, keylen);
ret = cia->cia_setkey(tfm, alignbuffer, keylen);
memset(alignbuffer, 0, absize);
kfree(buffer);
return ret;
}
static int setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) static int setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen)
{ {
struct cipher_alg *cia = &tfm->__crt_alg->cra_cipher; struct cipher_alg *cia = &tfm->__crt_alg->cra_cipher;
unsigned long alignmask = crypto_tfm_alg_alignmask(tfm);
tfm->crt_flags &= ~CRYPTO_TFM_RES_MASK; tfm->crt_flags &= ~CRYPTO_TFM_RES_MASK;
if (keylen < cia->cia_min_keysize || keylen > cia->cia_max_keysize) { if (keylen < cia->cia_min_keysize || keylen > cia->cia_max_keysize) {
tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
return -EINVAL; return -EINVAL;
} else }
return cia->cia_setkey(tfm, key, keylen);
if ((unsigned long)key & alignmask)
return setkey_unaligned(tfm, key, keylen);
return cia->cia_setkey(tfm, key, keylen);
} }
static void cipher_crypt_unaligned(void (*fn)(struct crypto_tfm *, u8 *, static void cipher_crypt_unaligned(void (*fn)(struct crypto_tfm *, u8 *,

View file

@ -22,6 +22,42 @@ static unsigned int crypto_hash_ctxsize(struct crypto_alg *alg, u32 type,
return alg->cra_ctxsize; return alg->cra_ctxsize;
} }
static int hash_setkey_unaligned(struct crypto_hash *crt, const u8 *key,
unsigned int keylen)
{
struct crypto_tfm *tfm = crypto_hash_tfm(crt);
struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
unsigned long alignmask = crypto_hash_alignmask(crt);
int ret;
u8 *buffer, *alignbuffer;
unsigned long absize;
absize = keylen + alignmask;
buffer = kmalloc(absize, GFP_ATOMIC);
if (!buffer)
return -ENOMEM;
alignbuffer = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
memcpy(alignbuffer, key, keylen);
ret = alg->setkey(crt, alignbuffer, keylen);
memset(alignbuffer, 0, absize);
kfree(buffer);
return ret;
}
static int hash_setkey(struct crypto_hash *crt, const u8 *key,
unsigned int keylen)
{
struct crypto_tfm *tfm = crypto_hash_tfm(crt);
struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
unsigned long alignmask = crypto_hash_alignmask(crt);
if ((unsigned long)key & alignmask)
return hash_setkey_unaligned(crt, key, keylen);
return alg->setkey(crt, key, keylen);
}
static int crypto_init_hash_ops(struct crypto_tfm *tfm, u32 type, u32 mask) static int crypto_init_hash_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
{ {
struct hash_tfm *crt = &tfm->crt_hash; struct hash_tfm *crt = &tfm->crt_hash;
@ -34,7 +70,7 @@ static int crypto_init_hash_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
crt->update = alg->update; crt->update = alg->update;
crt->final = alg->final; crt->final = alg->final;
crt->digest = alg->digest; crt->digest = alg->digest;
crt->setkey = alg->setkey; crt->setkey = hash_setkey;
crt->digestsize = alg->digestsize; crt->digestsize = alg->digestsize;
return 0; return 0;

View file

@ -295,28 +295,8 @@ struct blkcipher_tfm {
}; };
struct cipher_tfm { struct cipher_tfm {
void *cit_iv;
unsigned int cit_ivsize;
u32 cit_mode;
int (*cit_setkey)(struct crypto_tfm *tfm, int (*cit_setkey)(struct crypto_tfm *tfm,
const u8 *key, unsigned int keylen); const u8 *key, unsigned int keylen);
int (*cit_encrypt)(struct crypto_tfm *tfm,
struct scatterlist *dst,
struct scatterlist *src,
unsigned int nbytes);
int (*cit_encrypt_iv)(struct crypto_tfm *tfm,
struct scatterlist *dst,
struct scatterlist *src,
unsigned int nbytes, u8 *iv);
int (*cit_decrypt)(struct crypto_tfm *tfm,
struct scatterlist *dst,
struct scatterlist *src,
unsigned int nbytes);
int (*cit_decrypt_iv)(struct crypto_tfm *tfm,
struct scatterlist *dst,
struct scatterlist *src,
unsigned int nbytes, u8 *iv);
void (*cit_xor_block)(u8 *dst, const u8 *src);
void (*cit_encrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src); void (*cit_encrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
void (*cit_decrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src); void (*cit_decrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
}; };