829 lines
22 KiB
C
829 lines
22 KiB
C
/*
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* Scatterlist Cryptographic API.
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*
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* Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
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* Copyright (c) 2002 David S. Miller (davem@redhat.com)
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* Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
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*
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* Portions derived from Cryptoapi, by Alexander Kjeldaas <astor@fast.no>
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* and Nettle, by Niels Möller.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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*/
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#ifndef _LINUX_CRYPTO_H
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#define _LINUX_CRYPTO_H
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#include <asm/atomic.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/list.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/uaccess.h>
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/*
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* Algorithm masks and types.
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*/
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#define CRYPTO_ALG_TYPE_MASK 0x0000000f
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#define CRYPTO_ALG_TYPE_CIPHER 0x00000001
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#define CRYPTO_ALG_TYPE_DIGEST 0x00000002
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#define CRYPTO_ALG_TYPE_HASH 0x00000003
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#define CRYPTO_ALG_TYPE_BLKCIPHER 0x00000004
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#define CRYPTO_ALG_TYPE_COMPRESS 0x00000005
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#define CRYPTO_ALG_TYPE_HASH_MASK 0x0000000e
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#define CRYPTO_ALG_LARVAL 0x00000010
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#define CRYPTO_ALG_DEAD 0x00000020
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#define CRYPTO_ALG_DYING 0x00000040
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#define CRYPTO_ALG_ASYNC 0x00000080
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/*
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* Set this bit if and only if the algorithm requires another algorithm of
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* the same type to handle corner cases.
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*/
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#define CRYPTO_ALG_NEED_FALLBACK 0x00000100
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/*
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* Transform masks and values (for crt_flags).
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*/
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#define CRYPTO_TFM_REQ_MASK 0x000fff00
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#define CRYPTO_TFM_RES_MASK 0xfff00000
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#define CRYPTO_TFM_REQ_WEAK_KEY 0x00000100
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#define CRYPTO_TFM_REQ_MAY_SLEEP 0x00000200
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#define CRYPTO_TFM_RES_WEAK_KEY 0x00100000
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#define CRYPTO_TFM_RES_BAD_KEY_LEN 0x00200000
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#define CRYPTO_TFM_RES_BAD_KEY_SCHED 0x00400000
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#define CRYPTO_TFM_RES_BAD_BLOCK_LEN 0x00800000
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#define CRYPTO_TFM_RES_BAD_FLAGS 0x01000000
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/*
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* Miscellaneous stuff.
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*/
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#define CRYPTO_MAX_ALG_NAME 64
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/*
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* The macro CRYPTO_MINALIGN_ATTR (along with the void * type in the actual
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* declaration) is used to ensure that the crypto_tfm context structure is
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* aligned correctly for the given architecture so that there are no alignment
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* faults for C data types. In particular, this is required on platforms such
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* as arm where pointers are 32-bit aligned but there are data types such as
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* u64 which require 64-bit alignment.
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*/
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#if defined(ARCH_KMALLOC_MINALIGN)
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#define CRYPTO_MINALIGN ARCH_KMALLOC_MINALIGN
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#elif defined(ARCH_SLAB_MINALIGN)
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#define CRYPTO_MINALIGN ARCH_SLAB_MINALIGN
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#endif
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#ifdef CRYPTO_MINALIGN
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#define CRYPTO_MINALIGN_ATTR __attribute__ ((__aligned__(CRYPTO_MINALIGN)))
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#else
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#define CRYPTO_MINALIGN_ATTR
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#endif
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struct scatterlist;
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struct crypto_blkcipher;
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struct crypto_hash;
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struct crypto_tfm;
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struct crypto_type;
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struct blkcipher_desc {
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struct crypto_blkcipher *tfm;
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void *info;
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u32 flags;
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};
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struct cipher_desc {
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struct crypto_tfm *tfm;
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void (*crfn)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
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unsigned int (*prfn)(const struct cipher_desc *desc, u8 *dst,
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const u8 *src, unsigned int nbytes);
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void *info;
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};
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struct hash_desc {
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struct crypto_hash *tfm;
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u32 flags;
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};
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/*
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* Algorithms: modular crypto algorithm implementations, managed
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* via crypto_register_alg() and crypto_unregister_alg().
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*/
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struct blkcipher_alg {
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int (*setkey)(struct crypto_tfm *tfm, const u8 *key,
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unsigned int keylen);
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int (*encrypt)(struct blkcipher_desc *desc,
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struct scatterlist *dst, struct scatterlist *src,
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unsigned int nbytes);
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int (*decrypt)(struct blkcipher_desc *desc,
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struct scatterlist *dst, struct scatterlist *src,
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unsigned int nbytes);
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unsigned int min_keysize;
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unsigned int max_keysize;
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unsigned int ivsize;
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};
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struct cipher_alg {
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unsigned int cia_min_keysize;
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unsigned int cia_max_keysize;
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int (*cia_setkey)(struct crypto_tfm *tfm, const u8 *key,
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unsigned int keylen);
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void (*cia_encrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
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void (*cia_decrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
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};
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struct digest_alg {
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unsigned int dia_digestsize;
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void (*dia_init)(struct crypto_tfm *tfm);
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void (*dia_update)(struct crypto_tfm *tfm, const u8 *data,
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unsigned int len);
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void (*dia_final)(struct crypto_tfm *tfm, u8 *out);
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int (*dia_setkey)(struct crypto_tfm *tfm, const u8 *key,
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unsigned int keylen);
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};
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struct hash_alg {
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int (*init)(struct hash_desc *desc);
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int (*update)(struct hash_desc *desc, struct scatterlist *sg,
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unsigned int nbytes);
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int (*final)(struct hash_desc *desc, u8 *out);
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int (*digest)(struct hash_desc *desc, struct scatterlist *sg,
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unsigned int nbytes, u8 *out);
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int (*setkey)(struct crypto_hash *tfm, const u8 *key,
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unsigned int keylen);
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unsigned int digestsize;
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};
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struct compress_alg {
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int (*coa_compress)(struct crypto_tfm *tfm, const u8 *src,
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unsigned int slen, u8 *dst, unsigned int *dlen);
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int (*coa_decompress)(struct crypto_tfm *tfm, const u8 *src,
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unsigned int slen, u8 *dst, unsigned int *dlen);
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};
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#define cra_blkcipher cra_u.blkcipher
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#define cra_cipher cra_u.cipher
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#define cra_digest cra_u.digest
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#define cra_hash cra_u.hash
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#define cra_compress cra_u.compress
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struct crypto_alg {
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struct list_head cra_list;
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struct list_head cra_users;
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u32 cra_flags;
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unsigned int cra_blocksize;
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unsigned int cra_ctxsize;
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unsigned int cra_alignmask;
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int cra_priority;
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atomic_t cra_refcnt;
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char cra_name[CRYPTO_MAX_ALG_NAME];
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char cra_driver_name[CRYPTO_MAX_ALG_NAME];
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const struct crypto_type *cra_type;
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union {
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struct blkcipher_alg blkcipher;
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struct cipher_alg cipher;
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struct digest_alg digest;
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struct hash_alg hash;
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struct compress_alg compress;
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} cra_u;
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int (*cra_init)(struct crypto_tfm *tfm);
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void (*cra_exit)(struct crypto_tfm *tfm);
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void (*cra_destroy)(struct crypto_alg *alg);
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struct module *cra_module;
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};
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/*
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* Algorithm registration interface.
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*/
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int crypto_register_alg(struct crypto_alg *alg);
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int crypto_unregister_alg(struct crypto_alg *alg);
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/*
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* Algorithm query interface.
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*/
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#ifdef CONFIG_CRYPTO
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int crypto_has_alg(const char *name, u32 type, u32 mask);
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#else
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static inline int crypto_has_alg(const char *name, u32 type, u32 mask)
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{
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return 0;
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}
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#endif
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/*
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* Transforms: user-instantiated objects which encapsulate algorithms
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* and core processing logic. Managed via crypto_alloc_*() and
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* crypto_free_*(), as well as the various helpers below.
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*/
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struct blkcipher_tfm {
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void *iv;
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int (*setkey)(struct crypto_tfm *tfm, const u8 *key,
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unsigned int keylen);
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int (*encrypt)(struct blkcipher_desc *desc, struct scatterlist *dst,
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struct scatterlist *src, unsigned int nbytes);
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int (*decrypt)(struct blkcipher_desc *desc, struct scatterlist *dst,
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struct scatterlist *src, unsigned int nbytes);
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};
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struct cipher_tfm {
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void *cit_iv;
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unsigned int cit_ivsize;
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u32 cit_mode;
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int (*cit_setkey)(struct crypto_tfm *tfm,
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const u8 *key, unsigned int keylen);
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int (*cit_encrypt)(struct crypto_tfm *tfm,
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struct scatterlist *dst,
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struct scatterlist *src,
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unsigned int nbytes);
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int (*cit_encrypt_iv)(struct crypto_tfm *tfm,
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struct scatterlist *dst,
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struct scatterlist *src,
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unsigned int nbytes, u8 *iv);
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int (*cit_decrypt)(struct crypto_tfm *tfm,
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struct scatterlist *dst,
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struct scatterlist *src,
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unsigned int nbytes);
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int (*cit_decrypt_iv)(struct crypto_tfm *tfm,
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struct scatterlist *dst,
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struct scatterlist *src,
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unsigned int nbytes, u8 *iv);
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void (*cit_xor_block)(u8 *dst, const u8 *src);
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void (*cit_encrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
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void (*cit_decrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
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};
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struct hash_tfm {
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int (*init)(struct hash_desc *desc);
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int (*update)(struct hash_desc *desc,
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struct scatterlist *sg, unsigned int nsg);
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int (*final)(struct hash_desc *desc, u8 *out);
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int (*digest)(struct hash_desc *desc, struct scatterlist *sg,
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unsigned int nsg, u8 *out);
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int (*setkey)(struct crypto_hash *tfm, const u8 *key,
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unsigned int keylen);
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unsigned int digestsize;
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};
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struct compress_tfm {
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int (*cot_compress)(struct crypto_tfm *tfm,
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const u8 *src, unsigned int slen,
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u8 *dst, unsigned int *dlen);
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int (*cot_decompress)(struct crypto_tfm *tfm,
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const u8 *src, unsigned int slen,
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u8 *dst, unsigned int *dlen);
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};
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#define crt_blkcipher crt_u.blkcipher
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#define crt_cipher crt_u.cipher
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#define crt_hash crt_u.hash
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#define crt_compress crt_u.compress
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struct crypto_tfm {
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u32 crt_flags;
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union {
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struct blkcipher_tfm blkcipher;
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struct cipher_tfm cipher;
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struct hash_tfm hash;
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struct compress_tfm compress;
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} crt_u;
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struct crypto_alg *__crt_alg;
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void *__crt_ctx[] CRYPTO_MINALIGN_ATTR;
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};
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struct crypto_blkcipher {
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struct crypto_tfm base;
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};
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struct crypto_cipher {
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struct crypto_tfm base;
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};
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struct crypto_comp {
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struct crypto_tfm base;
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};
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struct crypto_hash {
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struct crypto_tfm base;
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};
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enum {
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CRYPTOA_UNSPEC,
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CRYPTOA_ALG,
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};
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struct crypto_attr_alg {
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char name[CRYPTO_MAX_ALG_NAME];
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};
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/*
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* Transform user interface.
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*/
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struct crypto_tfm *crypto_alloc_tfm(const char *alg_name, u32 tfm_flags);
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struct crypto_tfm *crypto_alloc_base(const char *alg_name, u32 type, u32 mask);
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void crypto_free_tfm(struct crypto_tfm *tfm);
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/*
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* Transform helpers which query the underlying algorithm.
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*/
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static inline const char *crypto_tfm_alg_name(struct crypto_tfm *tfm)
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{
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return tfm->__crt_alg->cra_name;
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}
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static inline const char *crypto_tfm_alg_driver_name(struct crypto_tfm *tfm)
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{
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return tfm->__crt_alg->cra_driver_name;
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}
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static inline int crypto_tfm_alg_priority(struct crypto_tfm *tfm)
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{
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return tfm->__crt_alg->cra_priority;
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}
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static inline const char *crypto_tfm_alg_modname(struct crypto_tfm *tfm)
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{
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return module_name(tfm->__crt_alg->cra_module);
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}
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static inline u32 crypto_tfm_alg_type(struct crypto_tfm *tfm)
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{
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return tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK;
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}
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static inline unsigned int crypto_tfm_alg_blocksize(struct crypto_tfm *tfm)
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{
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return tfm->__crt_alg->cra_blocksize;
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}
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static inline unsigned int crypto_tfm_alg_alignmask(struct crypto_tfm *tfm)
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{
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return tfm->__crt_alg->cra_alignmask;
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}
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static inline u32 crypto_tfm_get_flags(struct crypto_tfm *tfm)
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{
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return tfm->crt_flags;
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}
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static inline void crypto_tfm_set_flags(struct crypto_tfm *tfm, u32 flags)
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{
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tfm->crt_flags |= flags;
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}
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static inline void crypto_tfm_clear_flags(struct crypto_tfm *tfm, u32 flags)
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{
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tfm->crt_flags &= ~flags;
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}
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static inline void *crypto_tfm_ctx(struct crypto_tfm *tfm)
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{
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return tfm->__crt_ctx;
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}
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static inline unsigned int crypto_tfm_ctx_alignment(void)
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{
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struct crypto_tfm *tfm;
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return __alignof__(tfm->__crt_ctx);
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}
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/*
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* API wrappers.
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*/
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static inline struct crypto_blkcipher *__crypto_blkcipher_cast(
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struct crypto_tfm *tfm)
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{
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return (struct crypto_blkcipher *)tfm;
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}
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static inline struct crypto_blkcipher *crypto_blkcipher_cast(
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struct crypto_tfm *tfm)
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{
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BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_BLKCIPHER);
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return __crypto_blkcipher_cast(tfm);
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}
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static inline struct crypto_blkcipher *crypto_alloc_blkcipher(
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const char *alg_name, u32 type, u32 mask)
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{
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type &= ~CRYPTO_ALG_TYPE_MASK;
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type |= CRYPTO_ALG_TYPE_BLKCIPHER;
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mask |= CRYPTO_ALG_TYPE_MASK;
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return __crypto_blkcipher_cast(crypto_alloc_base(alg_name, type, mask));
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}
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static inline struct crypto_tfm *crypto_blkcipher_tfm(
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struct crypto_blkcipher *tfm)
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{
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return &tfm->base;
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}
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static inline void crypto_free_blkcipher(struct crypto_blkcipher *tfm)
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{
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crypto_free_tfm(crypto_blkcipher_tfm(tfm));
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}
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static inline int crypto_has_blkcipher(const char *alg_name, u32 type, u32 mask)
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{
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type &= ~CRYPTO_ALG_TYPE_MASK;
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type |= CRYPTO_ALG_TYPE_BLKCIPHER;
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mask |= CRYPTO_ALG_TYPE_MASK;
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return crypto_has_alg(alg_name, type, mask);
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}
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static inline const char *crypto_blkcipher_name(struct crypto_blkcipher *tfm)
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{
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return crypto_tfm_alg_name(crypto_blkcipher_tfm(tfm));
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}
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static inline struct blkcipher_tfm *crypto_blkcipher_crt(
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struct crypto_blkcipher *tfm)
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{
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return &crypto_blkcipher_tfm(tfm)->crt_blkcipher;
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}
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static inline struct blkcipher_alg *crypto_blkcipher_alg(
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struct crypto_blkcipher *tfm)
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{
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return &crypto_blkcipher_tfm(tfm)->__crt_alg->cra_blkcipher;
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}
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static inline unsigned int crypto_blkcipher_ivsize(struct crypto_blkcipher *tfm)
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{
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return crypto_blkcipher_alg(tfm)->ivsize;
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}
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static inline unsigned int crypto_blkcipher_blocksize(
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struct crypto_blkcipher *tfm)
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{
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return crypto_tfm_alg_blocksize(crypto_blkcipher_tfm(tfm));
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}
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static inline unsigned int crypto_blkcipher_alignmask(
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struct crypto_blkcipher *tfm)
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{
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return crypto_tfm_alg_alignmask(crypto_blkcipher_tfm(tfm));
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}
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static inline u32 crypto_blkcipher_get_flags(struct crypto_blkcipher *tfm)
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{
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return crypto_tfm_get_flags(crypto_blkcipher_tfm(tfm));
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}
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static inline void crypto_blkcipher_set_flags(struct crypto_blkcipher *tfm,
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u32 flags)
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{
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crypto_tfm_set_flags(crypto_blkcipher_tfm(tfm), flags);
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}
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static inline void crypto_blkcipher_clear_flags(struct crypto_blkcipher *tfm,
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u32 flags)
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{
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crypto_tfm_clear_flags(crypto_blkcipher_tfm(tfm), flags);
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}
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static inline int crypto_blkcipher_setkey(struct crypto_blkcipher *tfm,
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const u8 *key, unsigned int keylen)
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{
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return crypto_blkcipher_crt(tfm)->setkey(crypto_blkcipher_tfm(tfm),
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key, keylen);
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}
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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;
|
|
}
|
|
|
|
static inline struct crypto_cipher *crypto_cipher_cast(struct crypto_tfm *tfm)
|
|
{
|
|
BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
|
|
return __crypto_cipher_cast(tfm);
|
|
}
|
|
|
|
static inline struct crypto_cipher *crypto_alloc_cipher(const char *alg_name,
|
|
u32 type, u32 mask)
|
|
{
|
|
type &= ~CRYPTO_ALG_TYPE_MASK;
|
|
type |= CRYPTO_ALG_TYPE_CIPHER;
|
|
mask |= CRYPTO_ALG_TYPE_MASK;
|
|
|
|
return __crypto_cipher_cast(crypto_alloc_base(alg_name, type, mask));
|
|
}
|
|
|
|
static inline struct crypto_tfm *crypto_cipher_tfm(struct crypto_cipher *tfm)
|
|
{
|
|
return &tfm->base;
|
|
}
|
|
|
|
static inline void crypto_free_cipher(struct crypto_cipher *tfm)
|
|
{
|
|
crypto_free_tfm(crypto_cipher_tfm(tfm));
|
|
}
|
|
|
|
static inline int crypto_has_cipher(const char *alg_name, u32 type, u32 mask)
|
|
{
|
|
type &= ~CRYPTO_ALG_TYPE_MASK;
|
|
type |= CRYPTO_ALG_TYPE_CIPHER;
|
|
mask |= CRYPTO_ALG_TYPE_MASK;
|
|
|
|
return crypto_has_alg(alg_name, type, mask);
|
|
}
|
|
|
|
static inline struct cipher_tfm *crypto_cipher_crt(struct crypto_cipher *tfm)
|
|
{
|
|
return &crypto_cipher_tfm(tfm)->crt_cipher;
|
|
}
|
|
|
|
static inline unsigned int crypto_cipher_blocksize(struct crypto_cipher *tfm)
|
|
{
|
|
return crypto_tfm_alg_blocksize(crypto_cipher_tfm(tfm));
|
|
}
|
|
|
|
static inline unsigned int crypto_cipher_alignmask(struct crypto_cipher *tfm)
|
|
{
|
|
return crypto_tfm_alg_alignmask(crypto_cipher_tfm(tfm));
|
|
}
|
|
|
|
static inline u32 crypto_cipher_get_flags(struct crypto_cipher *tfm)
|
|
{
|
|
return crypto_tfm_get_flags(crypto_cipher_tfm(tfm));
|
|
}
|
|
|
|
static inline void crypto_cipher_set_flags(struct crypto_cipher *tfm,
|
|
u32 flags)
|
|
{
|
|
crypto_tfm_set_flags(crypto_cipher_tfm(tfm), flags);
|
|
}
|
|
|
|
static inline void crypto_cipher_clear_flags(struct crypto_cipher *tfm,
|
|
u32 flags)
|
|
{
|
|
crypto_tfm_clear_flags(crypto_cipher_tfm(tfm), flags);
|
|
}
|
|
|
|
static inline int crypto_cipher_setkey(struct crypto_cipher *tfm,
|
|
const u8 *key, unsigned int keylen)
|
|
{
|
|
return crypto_cipher_crt(tfm)->cit_setkey(crypto_cipher_tfm(tfm),
|
|
key, keylen);
|
|
}
|
|
|
|
static inline void crypto_cipher_encrypt_one(struct crypto_cipher *tfm,
|
|
u8 *dst, const u8 *src)
|
|
{
|
|
crypto_cipher_crt(tfm)->cit_encrypt_one(crypto_cipher_tfm(tfm),
|
|
dst, src);
|
|
}
|
|
|
|
static inline void crypto_cipher_decrypt_one(struct crypto_cipher *tfm,
|
|
u8 *dst, const u8 *src)
|
|
{
|
|
crypto_cipher_crt(tfm)->cit_decrypt_one(crypto_cipher_tfm(tfm),
|
|
dst, src);
|
|
}
|
|
|
|
static inline struct crypto_hash *__crypto_hash_cast(struct crypto_tfm *tfm)
|
|
{
|
|
return (struct crypto_hash *)tfm;
|
|
}
|
|
|
|
static inline struct crypto_hash *crypto_hash_cast(struct crypto_tfm *tfm)
|
|
{
|
|
BUG_ON((crypto_tfm_alg_type(tfm) ^ CRYPTO_ALG_TYPE_HASH) &
|
|
CRYPTO_ALG_TYPE_HASH_MASK);
|
|
return __crypto_hash_cast(tfm);
|
|
}
|
|
|
|
static inline struct crypto_hash *crypto_alloc_hash(const char *alg_name,
|
|
u32 type, u32 mask)
|
|
{
|
|
type &= ~CRYPTO_ALG_TYPE_MASK;
|
|
type |= CRYPTO_ALG_TYPE_HASH;
|
|
mask |= CRYPTO_ALG_TYPE_HASH_MASK;
|
|
|
|
return __crypto_hash_cast(crypto_alloc_base(alg_name, type, mask));
|
|
}
|
|
|
|
static inline struct crypto_tfm *crypto_hash_tfm(struct crypto_hash *tfm)
|
|
{
|
|
return &tfm->base;
|
|
}
|
|
|
|
static inline void crypto_free_hash(struct crypto_hash *tfm)
|
|
{
|
|
crypto_free_tfm(crypto_hash_tfm(tfm));
|
|
}
|
|
|
|
static inline int crypto_has_hash(const char *alg_name, u32 type, u32 mask)
|
|
{
|
|
type &= ~CRYPTO_ALG_TYPE_MASK;
|
|
type |= CRYPTO_ALG_TYPE_HASH;
|
|
mask |= CRYPTO_ALG_TYPE_HASH_MASK;
|
|
|
|
return crypto_has_alg(alg_name, type, mask);
|
|
}
|
|
|
|
static inline struct hash_tfm *crypto_hash_crt(struct crypto_hash *tfm)
|
|
{
|
|
return &crypto_hash_tfm(tfm)->crt_hash;
|
|
}
|
|
|
|
static inline unsigned int crypto_hash_blocksize(struct crypto_hash *tfm)
|
|
{
|
|
return crypto_tfm_alg_blocksize(crypto_hash_tfm(tfm));
|
|
}
|
|
|
|
static inline unsigned int crypto_hash_alignmask(struct crypto_hash *tfm)
|
|
{
|
|
return crypto_tfm_alg_alignmask(crypto_hash_tfm(tfm));
|
|
}
|
|
|
|
static inline unsigned int crypto_hash_digestsize(struct crypto_hash *tfm)
|
|
{
|
|
return crypto_hash_crt(tfm)->digestsize;
|
|
}
|
|
|
|
static inline u32 crypto_hash_get_flags(struct crypto_hash *tfm)
|
|
{
|
|
return crypto_tfm_get_flags(crypto_hash_tfm(tfm));
|
|
}
|
|
|
|
static inline void crypto_hash_set_flags(struct crypto_hash *tfm, u32 flags)
|
|
{
|
|
crypto_tfm_set_flags(crypto_hash_tfm(tfm), flags);
|
|
}
|
|
|
|
static inline void crypto_hash_clear_flags(struct crypto_hash *tfm, u32 flags)
|
|
{
|
|
crypto_tfm_clear_flags(crypto_hash_tfm(tfm), flags);
|
|
}
|
|
|
|
static inline int crypto_hash_init(struct hash_desc *desc)
|
|
{
|
|
return crypto_hash_crt(desc->tfm)->init(desc);
|
|
}
|
|
|
|
static inline int crypto_hash_update(struct hash_desc *desc,
|
|
struct scatterlist *sg,
|
|
unsigned int nbytes)
|
|
{
|
|
return crypto_hash_crt(desc->tfm)->update(desc, sg, nbytes);
|
|
}
|
|
|
|
static inline int crypto_hash_final(struct hash_desc *desc, u8 *out)
|
|
{
|
|
return crypto_hash_crt(desc->tfm)->final(desc, out);
|
|
}
|
|
|
|
static inline int crypto_hash_digest(struct hash_desc *desc,
|
|
struct scatterlist *sg,
|
|
unsigned int nbytes, u8 *out)
|
|
{
|
|
return crypto_hash_crt(desc->tfm)->digest(desc, sg, nbytes, out);
|
|
}
|
|
|
|
static inline int crypto_hash_setkey(struct crypto_hash *hash,
|
|
const u8 *key, unsigned int keylen)
|
|
{
|
|
return crypto_hash_crt(hash)->setkey(hash, key, keylen);
|
|
}
|
|
|
|
static inline struct crypto_comp *__crypto_comp_cast(struct crypto_tfm *tfm)
|
|
{
|
|
return (struct crypto_comp *)tfm;
|
|
}
|
|
|
|
static inline struct crypto_comp *crypto_comp_cast(struct crypto_tfm *tfm)
|
|
{
|
|
BUG_ON((crypto_tfm_alg_type(tfm) ^ CRYPTO_ALG_TYPE_COMPRESS) &
|
|
CRYPTO_ALG_TYPE_MASK);
|
|
return __crypto_comp_cast(tfm);
|
|
}
|
|
|
|
static inline struct crypto_comp *crypto_alloc_comp(const char *alg_name,
|
|
u32 type, u32 mask)
|
|
{
|
|
type &= ~CRYPTO_ALG_TYPE_MASK;
|
|
type |= CRYPTO_ALG_TYPE_COMPRESS;
|
|
mask |= CRYPTO_ALG_TYPE_MASK;
|
|
|
|
return __crypto_comp_cast(crypto_alloc_base(alg_name, type, mask));
|
|
}
|
|
|
|
static inline struct crypto_tfm *crypto_comp_tfm(struct crypto_comp *tfm)
|
|
{
|
|
return &tfm->base;
|
|
}
|
|
|
|
static inline void crypto_free_comp(struct crypto_comp *tfm)
|
|
{
|
|
crypto_free_tfm(crypto_comp_tfm(tfm));
|
|
}
|
|
|
|
static inline int crypto_has_comp(const char *alg_name, u32 type, u32 mask)
|
|
{
|
|
type &= ~CRYPTO_ALG_TYPE_MASK;
|
|
type |= CRYPTO_ALG_TYPE_COMPRESS;
|
|
mask |= CRYPTO_ALG_TYPE_MASK;
|
|
|
|
return crypto_has_alg(alg_name, type, mask);
|
|
}
|
|
|
|
static inline const char *crypto_comp_name(struct crypto_comp *tfm)
|
|
{
|
|
return crypto_tfm_alg_name(crypto_comp_tfm(tfm));
|
|
}
|
|
|
|
static inline struct compress_tfm *crypto_comp_crt(struct crypto_comp *tfm)
|
|
{
|
|
return &crypto_comp_tfm(tfm)->crt_compress;
|
|
}
|
|
|
|
static inline int crypto_comp_compress(struct crypto_comp *tfm,
|
|
const u8 *src, unsigned int slen,
|
|
u8 *dst, unsigned int *dlen)
|
|
{
|
|
return crypto_comp_crt(tfm)->cot_compress(crypto_comp_tfm(tfm),
|
|
src, slen, dst, dlen);
|
|
}
|
|
|
|
static inline int crypto_comp_decompress(struct crypto_comp *tfm,
|
|
const u8 *src, unsigned int slen,
|
|
u8 *dst, unsigned int *dlen)
|
|
{
|
|
return crypto_comp_crt(tfm)->cot_decompress(crypto_comp_tfm(tfm),
|
|
src, slen, dst, dlen);
|
|
}
|
|
|
|
#endif /* _LINUX_CRYPTO_H */
|
|
|