* Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
*
* Portions derived from Cryptoapi, by Alexander Kjeldaas <astor@fast.no>
- * and Nettle, by Niels Möller.
+ * and Nettle, by Niels Möller.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
#define CRYPTO_ALG_TYPE_DIGEST 0x00000002
#define CRYPTO_ALG_TYPE_HASH 0x00000003
#define CRYPTO_ALG_TYPE_BLKCIPHER 0x00000004
-#define CRYPTO_ALG_TYPE_COMPRESS 0x00000005
+#define CRYPTO_ALG_TYPE_ABLKCIPHER 0x00000005
+#define CRYPTO_ALG_TYPE_GIVCIPHER 0x00000006
+#define CRYPTO_ALG_TYPE_COMPRESS 0x00000008
+#define CRYPTO_ALG_TYPE_AEAD 0x00000009
#define CRYPTO_ALG_TYPE_HASH_MASK 0x0000000e
+#define CRYPTO_ALG_TYPE_BLKCIPHER_MASK 0x0000000c
#define CRYPTO_ALG_LARVAL 0x00000010
#define CRYPTO_ALG_DEAD 0x00000020
struct scatterlist;
struct crypto_ablkcipher;
struct crypto_async_request;
+struct crypto_aead;
struct crypto_blkcipher;
struct crypto_hash;
-struct crypto_queue;
struct crypto_tfm;
struct crypto_type;
+struct skcipher_givcrypt_request;
typedef void (*crypto_completion_t)(struct crypto_async_request *req, int err);
void *__ctx[] CRYPTO_MINALIGN_ATTR;
};
+/**
+ * struct aead_request - AEAD request
+ * @base: Common attributes for async crypto requests
+ * @assoclen: Length in bytes of associated data for authentication
+ * @cryptlen: Length of data to be encrypted or decrypted
+ * @iv: Initialisation vector
+ * @assoc: Associated data
+ * @src: Source data
+ * @dst: Destination data
+ * @__ctx: Start of private context data
+ */
+struct aead_request {
+ struct crypto_async_request base;
+
+ unsigned int assoclen;
+ unsigned int cryptlen;
+
+ u8 *iv;
+
+ struct scatterlist *assoc;
+ struct scatterlist *src;
+ struct scatterlist *dst;
+
+ void *__ctx[] CRYPTO_MINALIGN_ATTR;
+};
+
struct blkcipher_desc {
struct crypto_blkcipher *tfm;
void *info;
unsigned int keylen);
int (*encrypt)(struct ablkcipher_request *req);
int (*decrypt)(struct ablkcipher_request *req);
-
- struct crypto_queue *queue;
+ int (*givencrypt)(struct skcipher_givcrypt_request *req);
+ int (*givdecrypt)(struct skcipher_givcrypt_request *req);
unsigned int min_keysize;
unsigned int max_keysize;
unsigned int ivsize;
};
+struct aead_alg {
+ int (*setkey)(struct crypto_aead *tfm, const u8 *key,
+ unsigned int keylen);
+ int (*setauthsize)(struct crypto_aead *tfm, unsigned int authsize);
+ int (*encrypt)(struct aead_request *req);
+ int (*decrypt)(struct aead_request *req);
+
+ unsigned int ivsize;
+ unsigned int maxauthsize;
+};
+
struct blkcipher_alg {
int (*setkey)(struct crypto_tfm *tfm, const u8 *key,
unsigned int keylen);
};
#define cra_ablkcipher cra_u.ablkcipher
+#define cra_aead cra_u.aead
#define cra_blkcipher cra_u.blkcipher
#define cra_cipher cra_u.cipher
#define cra_digest cra_u.digest
union {
struct ablkcipher_alg ablkcipher;
+ struct aead_alg aead;
struct blkcipher_alg blkcipher;
struct cipher_alg cipher;
struct digest_alg digest;
unsigned int keylen);
int (*encrypt)(struct ablkcipher_request *req);
int (*decrypt)(struct ablkcipher_request *req);
+ int (*givencrypt)(struct skcipher_givcrypt_request *req);
+ int (*givdecrypt)(struct skcipher_givcrypt_request *req);
+
unsigned int ivsize;
unsigned int reqsize;
};
+struct aead_tfm {
+ int (*setkey)(struct crypto_aead *tfm, const u8 *key,
+ unsigned int keylen);
+ int (*encrypt)(struct aead_request *req);
+ int (*decrypt)(struct aead_request *req);
+ unsigned int ivsize;
+ unsigned int authsize;
+ unsigned int reqsize;
+};
+
struct blkcipher_tfm {
void *iv;
int (*setkey)(struct crypto_tfm *tfm, const u8 *key,
};
#define crt_ablkcipher crt_u.ablkcipher
+#define crt_aead crt_u.aead
#define crt_blkcipher crt_u.blkcipher
#define crt_cipher crt_u.cipher
#define crt_hash crt_u.hash
union {
struct ablkcipher_tfm ablkcipher;
+ struct aead_tfm aead;
struct blkcipher_tfm blkcipher;
struct cipher_tfm cipher;
struct hash_tfm hash;
struct crypto_tfm base;
};
+struct crypto_aead {
+ struct crypto_tfm base;
+};
+
struct crypto_blkcipher {
struct crypto_tfm base;
};
CRYPTOA_UNSPEC,
CRYPTOA_ALG,
CRYPTOA_TYPE,
+ CRYPTOA_U32,
__CRYPTOA_MAX,
};
#define CRYPTOA_MAX (__CRYPTOA_MAX - 1)
+/* Maximum number of (rtattr) parameters for each template. */
+#define CRYPTO_MAX_ATTRS 32
+
struct crypto_attr_alg {
char name[CRYPTO_MAX_ALG_NAME];
};
u32 mask;
};
+struct crypto_attr_u32 {
+ u32 num;
+};
+
/*
* Transform user interface.
*/
return (struct crypto_ablkcipher *)tfm;
}
-static inline struct crypto_ablkcipher *crypto_alloc_ablkcipher(
- const char *alg_name, u32 type, u32 mask)
+static inline u32 crypto_skcipher_type(u32 type)
{
type &= ~CRYPTO_ALG_TYPE_MASK;
type |= CRYPTO_ALG_TYPE_BLKCIPHER;
- mask |= CRYPTO_ALG_TYPE_MASK;
+ return type;
+}
+
+static inline u32 crypto_skcipher_mask(u32 mask)
+{
+ mask &= ~CRYPTO_ALG_TYPE_MASK;
+ mask |= CRYPTO_ALG_TYPE_BLKCIPHER_MASK;
+ return mask;
+}
+static inline struct crypto_ablkcipher *crypto_alloc_ablkcipher(
+ const char *alg_name, u32 type, u32 mask)
+{
return __crypto_ablkcipher_cast(
- crypto_alloc_base(alg_name, type, mask));
+ crypto_alloc_base(alg_name, crypto_skcipher_type(type),
+ crypto_skcipher_mask(mask)));
}
static inline struct crypto_tfm *crypto_ablkcipher_tfm(
static inline int crypto_has_ablkcipher(const char *alg_name, u32 type,
u32 mask)
{
- type &= ~CRYPTO_ALG_TYPE_MASK;
- type |= CRYPTO_ALG_TYPE_BLKCIPHER;
- mask |= CRYPTO_ALG_TYPE_MASK;
-
- return crypto_has_alg(alg_name, type, mask);
+ return crypto_has_alg(alg_name, crypto_skcipher_type(type),
+ crypto_skcipher_mask(mask));
}
static inline struct ablkcipher_tfm *crypto_ablkcipher_crt(
return crt->decrypt(req);
}
-static inline int crypto_ablkcipher_reqsize(struct crypto_ablkcipher *tfm)
+static inline unsigned int crypto_ablkcipher_reqsize(
+ struct crypto_ablkcipher *tfm)
{
return crypto_ablkcipher_crt(tfm)->reqsize;
}
req->info = iv;
}
+static inline struct crypto_aead *__crypto_aead_cast(struct crypto_tfm *tfm)
+{
+ return (struct crypto_aead *)tfm;
+}
+
+static inline struct crypto_aead *crypto_alloc_aead(const char *alg_name,
+ u32 type, u32 mask)
+{
+ type &= ~CRYPTO_ALG_TYPE_MASK;
+ type |= CRYPTO_ALG_TYPE_AEAD;
+ mask |= CRYPTO_ALG_TYPE_MASK;
+
+ return __crypto_aead_cast(crypto_alloc_base(alg_name, type, mask));
+}
+
+static inline struct crypto_tfm *crypto_aead_tfm(struct crypto_aead *tfm)
+{
+ return &tfm->base;
+}
+
+static inline void crypto_free_aead(struct crypto_aead *tfm)
+{
+ crypto_free_tfm(crypto_aead_tfm(tfm));
+}
+
+static inline struct aead_tfm *crypto_aead_crt(struct crypto_aead *tfm)
+{
+ return &crypto_aead_tfm(tfm)->crt_aead;
+}
+
+static inline unsigned int crypto_aead_ivsize(struct crypto_aead *tfm)
+{
+ return crypto_aead_crt(tfm)->ivsize;
+}
+
+static inline unsigned int crypto_aead_authsize(struct crypto_aead *tfm)
+{
+ return crypto_aead_crt(tfm)->authsize;
+}
+
+static inline unsigned int crypto_aead_blocksize(struct crypto_aead *tfm)
+{
+ return crypto_tfm_alg_blocksize(crypto_aead_tfm(tfm));
+}
+
+static inline unsigned int crypto_aead_alignmask(struct crypto_aead *tfm)
+{
+ return crypto_tfm_alg_alignmask(crypto_aead_tfm(tfm));
+}
+
+static inline u32 crypto_aead_get_flags(struct crypto_aead *tfm)
+{
+ return crypto_tfm_get_flags(crypto_aead_tfm(tfm));
+}
+
+static inline void crypto_aead_set_flags(struct crypto_aead *tfm, u32 flags)
+{
+ crypto_tfm_set_flags(crypto_aead_tfm(tfm), flags);
+}
+
+static inline void crypto_aead_clear_flags(struct crypto_aead *tfm, u32 flags)
+{
+ crypto_tfm_clear_flags(crypto_aead_tfm(tfm), flags);
+}
+
+static inline int crypto_aead_setkey(struct crypto_aead *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ return crypto_aead_crt(tfm)->setkey(tfm, key, keylen);
+}
+
+int crypto_aead_setauthsize(struct crypto_aead *tfm, unsigned int authsize);
+
+static inline struct crypto_aead *crypto_aead_reqtfm(struct aead_request *req)
+{
+ return __crypto_aead_cast(req->base.tfm);
+}
+
+static inline int crypto_aead_encrypt(struct aead_request *req)
+{
+ return crypto_aead_crt(crypto_aead_reqtfm(req))->encrypt(req);
+}
+
+static inline int crypto_aead_decrypt(struct aead_request *req)
+{
+ return crypto_aead_crt(crypto_aead_reqtfm(req))->decrypt(req);
+}
+
+static inline unsigned int crypto_aead_reqsize(struct crypto_aead *tfm)
+{
+ return crypto_aead_crt(tfm)->reqsize;
+}
+
+static inline void aead_request_set_tfm(struct aead_request *req,
+ struct crypto_aead *tfm)
+{
+ req->base.tfm = crypto_aead_tfm(tfm);
+}
+
+static inline struct aead_request *aead_request_alloc(struct crypto_aead *tfm,
+ gfp_t gfp)
+{
+ struct aead_request *req;
+
+ req = kmalloc(sizeof(*req) + crypto_aead_reqsize(tfm), gfp);
+
+ if (likely(req))
+ aead_request_set_tfm(req, tfm);
+
+ return req;
+}
+
+static inline void aead_request_free(struct aead_request *req)
+{
+ kfree(req);
+}
+
+static inline void aead_request_set_callback(struct aead_request *req,
+ u32 flags,
+ crypto_completion_t complete,
+ void *data)
+{
+ req->base.complete = complete;
+ req->base.data = data;
+ req->base.flags = flags;
+}
+
+static inline void aead_request_set_crypt(struct aead_request *req,
+ struct scatterlist *src,
+ struct scatterlist *dst,
+ unsigned int cryptlen, u8 *iv)
+{
+ req->src = src;
+ req->dst = dst;
+ req->cryptlen = cryptlen;
+ req->iv = iv;
+}
+
+static inline void aead_request_set_assoc(struct aead_request *req,
+ struct scatterlist *assoc,
+ unsigned int assoclen)
+{
+ req->assoc = assoc;
+ req->assoclen = assoclen;
+}
+
static inline struct crypto_blkcipher *__crypto_blkcipher_cast(
struct crypto_tfm *tfm)
{
static inline struct crypto_blkcipher *crypto_alloc_blkcipher(
const char *alg_name, u32 type, u32 mask)
{
- type &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_ASYNC);
+ type &= ~CRYPTO_ALG_TYPE_MASK;
type |= CRYPTO_ALG_TYPE_BLKCIPHER;
- mask |= CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_ASYNC;
+ mask |= CRYPTO_ALG_TYPE_MASK;
return __crypto_blkcipher_cast(crypto_alloc_base(alg_name, type, mask));
}
static inline int crypto_has_blkcipher(const char *alg_name, u32 type, u32 mask)
{
- type &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_ASYNC);
+ type &= ~CRYPTO_ALG_TYPE_MASK;
type |= CRYPTO_ALG_TYPE_BLKCIPHER;
- mask |= CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_ASYNC;
+ mask |= CRYPTO_ALG_TYPE_MASK;
return crypto_has_alg(alg_name, type, mask);
}
u32 type, u32 mask)
{
type &= ~CRYPTO_ALG_TYPE_MASK;
+ mask &= ~CRYPTO_ALG_TYPE_MASK;
type |= CRYPTO_ALG_TYPE_HASH;
mask |= CRYPTO_ALG_TYPE_HASH_MASK;
static inline int crypto_has_hash(const char *alg_name, u32 type, u32 mask)
{
type &= ~CRYPTO_ALG_TYPE_MASK;
+ mask &= ~CRYPTO_ALG_TYPE_MASK;
type |= CRYPTO_ALG_TYPE_HASH;
mask |= CRYPTO_ALG_TYPE_HASH_MASK;
Code Review / linux-2.6.git / blobdiff