#define CRYPTO_ALG_TYPE_MASK 0x0000000f
#define CRYPTO_ALG_TYPE_CIPHER 0x00000001
#define CRYPTO_ALG_TYPE_DIGEST 0x00000002
+#define CRYPTO_ALG_TYPE_BLKCIPHER 0x00000003
#define CRYPTO_ALG_TYPE_COMPRESS 0x00000004
#define CRYPTO_ALG_LARVAL 0x00000010
#endif
struct scatterlist;
+struct crypto_blkcipher;
struct crypto_tfm;
struct crypto_type;
+struct blkcipher_desc {
+ struct crypto_blkcipher *tfm;
+ void *info;
+ u32 flags;
+};
+
struct cipher_desc {
struct crypto_tfm *tfm;
void (*crfn)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
* Algorithms: modular crypto algorithm implementations, managed
* via crypto_register_alg() and crypto_unregister_alg().
*/
+struct blkcipher_alg {
+ int (*setkey)(struct crypto_tfm *tfm, const u8 *key,
+ unsigned int keylen);
+ int (*encrypt)(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes);
+ int (*decrypt)(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes);
+
+ unsigned int min_keysize;
+ unsigned int max_keysize;
+ unsigned int ivsize;
+};
+
struct cipher_alg {
unsigned int cia_min_keysize;
unsigned int cia_max_keysize;
unsigned int slen, u8 *dst, unsigned int *dlen);
};
+#define cra_blkcipher cra_u.blkcipher
#define cra_cipher cra_u.cipher
#define cra_digest cra_u.digest
#define cra_compress cra_u.compress
const struct crypto_type *cra_type;
union {
+ struct blkcipher_alg blkcipher;
struct cipher_alg cipher;
struct digest_alg digest;
struct compress_alg compress;
* crypto_free_*(), as well as the various helpers below.
*/
+struct blkcipher_tfm {
+ void *iv;
+ int (*setkey)(struct crypto_tfm *tfm, const u8 *key,
+ unsigned int keylen);
+ int (*encrypt)(struct blkcipher_desc *desc, struct scatterlist *dst,
+ struct scatterlist *src, unsigned int nbytes);
+ int (*decrypt)(struct blkcipher_desc *desc, struct scatterlist *dst,
+ struct scatterlist *src, unsigned int nbytes);
+};
+
struct cipher_tfm {
void *cit_iv;
unsigned int cit_ivsize;
u8 *dst, unsigned int *dlen);
};
+#define crt_blkcipher crt_u.blkcipher
#define crt_cipher crt_u.cipher
#define crt_digest crt_u.digest
#define crt_compress crt_u.compress
u32 crt_flags;
union {
+ struct blkcipher_tfm blkcipher;
struct cipher_tfm cipher;
struct digest_tfm digest;
struct compress_tfm compress;
#define crypto_cipher crypto_tfm
+struct crypto_blkcipher {
+ struct crypto_tfm base;
+};
+
enum {
CRYPTOA_UNSPEC,
CRYPTOA_ALG,
/*
* API wrappers.
*/
+static inline struct crypto_blkcipher *__crypto_blkcipher_cast(
+ struct crypto_tfm *tfm)
+{
+ return (struct crypto_blkcipher *)tfm;
+}
+
+static inline struct crypto_blkcipher *crypto_blkcipher_cast(
+ struct crypto_tfm *tfm)
+{
+ BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_BLKCIPHER);
+ return __crypto_blkcipher_cast(tfm);
+}
+
+static inline struct crypto_blkcipher *crypto_alloc_blkcipher(
+ 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_blkcipher_cast(crypto_alloc_base(alg_name, type, mask));
+}
+
+static inline struct crypto_tfm *crypto_blkcipher_tfm(
+ struct crypto_blkcipher *tfm)
+{
+ return &tfm->base;
+}
+
+static inline void crypto_free_blkcipher(struct crypto_blkcipher *tfm)
+{
+ crypto_free_tfm(crypto_blkcipher_tfm(tfm));
+}
+
+static inline const char *crypto_blkcipher_name(struct crypto_blkcipher *tfm)
+{
+ return crypto_tfm_alg_name(crypto_blkcipher_tfm(tfm));
+}
+
+static inline struct blkcipher_tfm *crypto_blkcipher_crt(
+ struct crypto_blkcipher *tfm)
+{
+ return &crypto_blkcipher_tfm(tfm)->crt_blkcipher;
+}
+
+static inline struct blkcipher_alg *crypto_blkcipher_alg(
+ struct crypto_blkcipher *tfm)
+{
+ return &crypto_blkcipher_tfm(tfm)->__crt_alg->cra_blkcipher;
+}
+
+static inline unsigned int crypto_blkcipher_ivsize(struct crypto_blkcipher *tfm)
+{
+ return crypto_blkcipher_alg(tfm)->ivsize;
+}
+
+static inline unsigned int crypto_blkcipher_blocksize(
+ struct crypto_blkcipher *tfm)
+{
+ return crypto_tfm_alg_blocksize(crypto_blkcipher_tfm(tfm));
+}
+
+static inline unsigned int crypto_blkcipher_alignmask(
+ struct crypto_blkcipher *tfm)
+{
+ return crypto_tfm_alg_alignmask(crypto_blkcipher_tfm(tfm));
+}
+
+static inline u32 crypto_blkcipher_get_flags(struct crypto_blkcipher *tfm)
+{
+ return crypto_tfm_get_flags(crypto_blkcipher_tfm(tfm));
+}
+
+static inline void crypto_blkcipher_set_flags(struct crypto_blkcipher *tfm,
+ u32 flags)
+{
+ crypto_tfm_set_flags(crypto_blkcipher_tfm(tfm), flags);
+}
+
+static inline void crypto_blkcipher_clear_flags(struct crypto_blkcipher *tfm,
+ u32 flags)
+{
+ crypto_tfm_clear_flags(crypto_blkcipher_tfm(tfm), flags);
+}
+
+static inline int crypto_blkcipher_setkey(struct crypto_blkcipher *tfm,
+ const u8 *key, unsigned int keylen)
+{
+ return crypto_blkcipher_crt(tfm)->setkey(crypto_blkcipher_tfm(tfm),
+ key, keylen);
+}
+
+static inline int crypto_blkcipher_encrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst,
+ struct scatterlist *src,
+ unsigned int nbytes)
+{
+ desc->info = crypto_blkcipher_crt(desc->tfm)->iv;
+ return crypto_blkcipher_crt(desc->tfm)->encrypt(desc, dst, src, nbytes);
+}
+
+static inline int crypto_blkcipher_encrypt_iv(struct blkcipher_desc *desc,
+ struct scatterlist *dst,
+ struct scatterlist *src,
+ unsigned int nbytes)
+{
+ return crypto_blkcipher_crt(desc->tfm)->encrypt(desc, dst, src, nbytes);
+}
+
+static inline int crypto_blkcipher_decrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst,
+ struct scatterlist *src,
+ unsigned int nbytes)
+{
+ desc->info = crypto_blkcipher_crt(desc->tfm)->iv;
+ return crypto_blkcipher_crt(desc->tfm)->decrypt(desc, dst, src, nbytes);
+}
+
+static inline int crypto_blkcipher_decrypt_iv(struct blkcipher_desc *desc,
+ struct scatterlist *dst,
+ struct scatterlist *src,
+ unsigned int nbytes)
+{
+ return crypto_blkcipher_crt(desc->tfm)->decrypt(desc, dst, src, nbytes);
+}
+
+static inline void crypto_blkcipher_set_iv(struct crypto_blkcipher *tfm,
+ const u8 *src, unsigned int len)
+{
+ memcpy(crypto_blkcipher_crt(tfm)->iv, src, len);
+}
+
+static inline void crypto_blkcipher_get_iv(struct crypto_blkcipher *tfm,
+ u8 *dst, unsigned int len)
+{
+ memcpy(dst, crypto_blkcipher_crt(tfm)->iv, len);
+}
+
static inline struct crypto_cipher *__crypto_cipher_cast(struct crypto_tfm *tfm)
{
return (struct crypto_cipher *)tfm;
projects / powerpc.git / blobdiff