1269 lines
32 KiB
C
1269 lines
32 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_ABLKCIPHER 0x00000005
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#define CRYPTO_ALG_TYPE_GIVCIPHER 0x00000006
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#define CRYPTO_ALG_TYPE_COMPRESS 0x00000008
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#define CRYPTO_ALG_TYPE_AEAD 0x00000009
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#define CRYPTO_ALG_TYPE_HASH_MASK 0x0000000e
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#define CRYPTO_ALG_TYPE_BLKCIPHER_MASK 0x0000000c
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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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* This bit is set for symmetric key ciphers that have already been wrapped
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* with a generic IV generator to prevent them from being wrapped again.
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*/
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#define CRYPTO_ALG_GENIV 0x00000200
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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_REQ_MAY_BACKLOG 0x00000400
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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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#else
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#define CRYPTO_MINALIGN __alignof__(unsigned long long)
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#endif
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#define CRYPTO_MINALIGN_ATTR __attribute__ ((__aligned__(CRYPTO_MINALIGN)))
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struct scatterlist;
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struct crypto_ablkcipher;
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struct crypto_async_request;
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struct crypto_aead;
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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 aead_givcrypt_request;
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struct skcipher_givcrypt_request;
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typedef void (*crypto_completion_t)(struct crypto_async_request *req, int err);
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struct crypto_async_request {
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struct list_head list;
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crypto_completion_t complete;
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void *data;
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struct crypto_tfm *tfm;
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u32 flags;
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};
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struct ablkcipher_request {
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struct crypto_async_request base;
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unsigned int nbytes;
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void *info;
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struct scatterlist *src;
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struct scatterlist *dst;
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void *__ctx[] CRYPTO_MINALIGN_ATTR;
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};
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/**
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* struct aead_request - AEAD request
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* @base: Common attributes for async crypto requests
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* @assoclen: Length in bytes of associated data for authentication
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* @cryptlen: Length of data to be encrypted or decrypted
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* @iv: Initialisation vector
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* @assoc: Associated data
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* @src: Source data
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* @dst: Destination data
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* @__ctx: Start of private context data
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*/
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struct aead_request {
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struct crypto_async_request base;
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unsigned int assoclen;
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unsigned int cryptlen;
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u8 *iv;
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struct scatterlist *assoc;
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struct scatterlist *src;
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struct scatterlist *dst;
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void *__ctx[] CRYPTO_MINALIGN_ATTR;
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};
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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 ablkcipher_alg {
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int (*setkey)(struct crypto_ablkcipher *tfm, const u8 *key,
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unsigned int keylen);
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int (*encrypt)(struct ablkcipher_request *req);
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int (*decrypt)(struct ablkcipher_request *req);
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int (*givencrypt)(struct skcipher_givcrypt_request *req);
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int (*givdecrypt)(struct skcipher_givcrypt_request *req);
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const char *geniv;
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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 aead_alg {
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int (*setkey)(struct crypto_aead *tfm, const u8 *key,
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unsigned int keylen);
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int (*setauthsize)(struct crypto_aead *tfm, unsigned int authsize);
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int (*encrypt)(struct aead_request *req);
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int (*decrypt)(struct aead_request *req);
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int (*givencrypt)(struct aead_givcrypt_request *req);
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int (*givdecrypt)(struct aead_givcrypt_request *req);
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const char *geniv;
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unsigned int ivsize;
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unsigned int maxauthsize;
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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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const char *geniv;
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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_ablkcipher cra_u.ablkcipher
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#define cra_aead cra_u.aead
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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 ablkcipher_alg ablkcipher;
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struct aead_alg aead;
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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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int crypto_has_alg(const char *name, u32 type, u32 mask);
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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 ablkcipher_tfm {
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int (*setkey)(struct crypto_ablkcipher *tfm, const u8 *key,
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unsigned int keylen);
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int (*encrypt)(struct ablkcipher_request *req);
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int (*decrypt)(struct ablkcipher_request *req);
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int (*givencrypt)(struct skcipher_givcrypt_request *req);
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int (*givdecrypt)(struct skcipher_givcrypt_request *req);
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struct crypto_ablkcipher *base;
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unsigned int ivsize;
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unsigned int reqsize;
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};
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struct aead_tfm {
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int (*setkey)(struct crypto_aead *tfm, const u8 *key,
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unsigned int keylen);
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int (*encrypt)(struct aead_request *req);
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int (*decrypt)(struct aead_request *req);
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int (*givencrypt)(struct aead_givcrypt_request *req);
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int (*givdecrypt)(struct aead_givcrypt_request *req);
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struct crypto_aead *base;
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unsigned int ivsize;
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unsigned int authsize;
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unsigned int reqsize;
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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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int (*cit_setkey)(struct crypto_tfm *tfm,
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const u8 *key, unsigned int keylen);
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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_ablkcipher crt_u.ablkcipher
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#define crt_aead crt_u.aead
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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 ablkcipher_tfm ablkcipher;
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struct aead_tfm aead;
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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_ablkcipher {
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struct crypto_tfm base;
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};
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struct crypto_aead {
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struct crypto_tfm base;
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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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CRYPTOA_TYPE,
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CRYPTOA_U32,
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__CRYPTOA_MAX,
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};
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#define CRYPTOA_MAX (__CRYPTOA_MAX - 1)
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/* Maximum number of (rtattr) parameters for each template. */
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#define CRYPTO_MAX_ATTRS 32
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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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struct crypto_attr_type {
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u32 type;
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u32 mask;
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};
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struct crypto_attr_u32 {
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u32 num;
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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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{
|
|
tfm->crt_flags |= flags;
|
|
}
|
|
|
|
static inline void crypto_tfm_clear_flags(struct crypto_tfm *tfm, u32 flags)
|
|
{
|
|
tfm->crt_flags &= ~flags;
|
|
}
|
|
|
|
static inline void *crypto_tfm_ctx(struct crypto_tfm *tfm)
|
|
{
|
|
return tfm->__crt_ctx;
|
|
}
|
|
|
|
static inline unsigned int crypto_tfm_ctx_alignment(void)
|
|
{
|
|
struct crypto_tfm *tfm;
|
|
return __alignof__(tfm->__crt_ctx);
|
|
}
|
|
|
|
/*
|
|
* API wrappers.
|
|
*/
|
|
static inline struct crypto_ablkcipher *__crypto_ablkcipher_cast(
|
|
struct crypto_tfm *tfm)
|
|
{
|
|
return (struct crypto_ablkcipher *)tfm;
|
|
}
|
|
|
|
static inline u32 crypto_skcipher_type(u32 type)
|
|
{
|
|
type &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
|
|
type |= CRYPTO_ALG_TYPE_BLKCIPHER;
|
|
return type;
|
|
}
|
|
|
|
static inline u32 crypto_skcipher_mask(u32 mask)
|
|
{
|
|
mask &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
|
|
mask |= CRYPTO_ALG_TYPE_BLKCIPHER_MASK;
|
|
return mask;
|
|
}
|
|
|
|
struct crypto_ablkcipher *crypto_alloc_ablkcipher(const char *alg_name,
|
|
u32 type, u32 mask);
|
|
|
|
static inline struct crypto_tfm *crypto_ablkcipher_tfm(
|
|
struct crypto_ablkcipher *tfm)
|
|
{
|
|
return &tfm->base;
|
|
}
|
|
|
|
static inline void crypto_free_ablkcipher(struct crypto_ablkcipher *tfm)
|
|
{
|
|
crypto_free_tfm(crypto_ablkcipher_tfm(tfm));
|
|
}
|
|
|
|
static inline int crypto_has_ablkcipher(const char *alg_name, u32 type,
|
|
u32 mask)
|
|
{
|
|
return crypto_has_alg(alg_name, crypto_skcipher_type(type),
|
|
crypto_skcipher_mask(mask));
|
|
}
|
|
|
|
static inline struct ablkcipher_tfm *crypto_ablkcipher_crt(
|
|
struct crypto_ablkcipher *tfm)
|
|
{
|
|
return &crypto_ablkcipher_tfm(tfm)->crt_ablkcipher;
|
|
}
|
|
|
|
static inline unsigned int crypto_ablkcipher_ivsize(
|
|
struct crypto_ablkcipher *tfm)
|
|
{
|
|
return crypto_ablkcipher_crt(tfm)->ivsize;
|
|
}
|
|
|
|
static inline unsigned int crypto_ablkcipher_blocksize(
|
|
struct crypto_ablkcipher *tfm)
|
|
{
|
|
return crypto_tfm_alg_blocksize(crypto_ablkcipher_tfm(tfm));
|
|
}
|
|
|
|
static inline unsigned int crypto_ablkcipher_alignmask(
|
|
struct crypto_ablkcipher *tfm)
|
|
{
|
|
return crypto_tfm_alg_alignmask(crypto_ablkcipher_tfm(tfm));
|
|
}
|
|
|
|
static inline u32 crypto_ablkcipher_get_flags(struct crypto_ablkcipher *tfm)
|
|
{
|
|
return crypto_tfm_get_flags(crypto_ablkcipher_tfm(tfm));
|
|
}
|
|
|
|
static inline void crypto_ablkcipher_set_flags(struct crypto_ablkcipher *tfm,
|
|
u32 flags)
|
|
{
|
|
crypto_tfm_set_flags(crypto_ablkcipher_tfm(tfm), flags);
|
|
}
|
|
|
|
static inline void crypto_ablkcipher_clear_flags(struct crypto_ablkcipher *tfm,
|
|
u32 flags)
|
|
{
|
|
crypto_tfm_clear_flags(crypto_ablkcipher_tfm(tfm), flags);
|
|
}
|
|
|
|
static inline int crypto_ablkcipher_setkey(struct crypto_ablkcipher *tfm,
|
|
const u8 *key, unsigned int keylen)
|
|
{
|
|
struct ablkcipher_tfm *crt = crypto_ablkcipher_crt(tfm);
|
|
|
|
return crt->setkey(crt->base, key, keylen);
|
|
}
|
|
|
|
static inline struct crypto_ablkcipher *crypto_ablkcipher_reqtfm(
|
|
struct ablkcipher_request *req)
|
|
{
|
|
return __crypto_ablkcipher_cast(req->base.tfm);
|
|
}
|
|
|
|
static inline int crypto_ablkcipher_encrypt(struct ablkcipher_request *req)
|
|
{
|
|
struct ablkcipher_tfm *crt =
|
|
crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req));
|
|
return crt->encrypt(req);
|
|
}
|
|
|
|
static inline int crypto_ablkcipher_decrypt(struct ablkcipher_request *req)
|
|
{
|
|
struct ablkcipher_tfm *crt =
|
|
crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req));
|
|
return crt->decrypt(req);
|
|
}
|
|
|
|
static inline unsigned int crypto_ablkcipher_reqsize(
|
|
struct crypto_ablkcipher *tfm)
|
|
{
|
|
return crypto_ablkcipher_crt(tfm)->reqsize;
|
|
}
|
|
|
|
static inline void ablkcipher_request_set_tfm(
|
|
struct ablkcipher_request *req, struct crypto_ablkcipher *tfm)
|
|
{
|
|
req->base.tfm = crypto_ablkcipher_tfm(crypto_ablkcipher_crt(tfm)->base);
|
|
}
|
|
|
|
static inline struct ablkcipher_request *ablkcipher_request_cast(
|
|
struct crypto_async_request *req)
|
|
{
|
|
return container_of(req, struct ablkcipher_request, base);
|
|
}
|
|
|
|
static inline struct ablkcipher_request *ablkcipher_request_alloc(
|
|
struct crypto_ablkcipher *tfm, gfp_t gfp)
|
|
{
|
|
struct ablkcipher_request *req;
|
|
|
|
req = kmalloc(sizeof(struct ablkcipher_request) +
|
|
crypto_ablkcipher_reqsize(tfm), gfp);
|
|
|
|
if (likely(req))
|
|
ablkcipher_request_set_tfm(req, tfm);
|
|
|
|
return req;
|
|
}
|
|
|
|
static inline void ablkcipher_request_free(struct ablkcipher_request *req)
|
|
{
|
|
kfree(req);
|
|
}
|
|
|
|
static inline void ablkcipher_request_set_callback(
|
|
struct ablkcipher_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 ablkcipher_request_set_crypt(
|
|
struct ablkcipher_request *req,
|
|
struct scatterlist *src, struct scatterlist *dst,
|
|
unsigned int nbytes, void *iv)
|
|
{
|
|
req->src = src;
|
|
req->dst = dst;
|
|
req->nbytes = nbytes;
|
|
req->info = iv;
|
|
}
|
|
|
|
static inline struct crypto_aead *__crypto_aead_cast(struct crypto_tfm *tfm)
|
|
{
|
|
return (struct crypto_aead *)tfm;
|
|
}
|
|
|
|
struct crypto_aead *crypto_alloc_aead(const char *alg_name, u32 type, u32 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)
|
|
{
|
|
struct aead_tfm *crt = crypto_aead_crt(tfm);
|
|
|
|
return crt->setkey(crt->base, 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(crypto_aead_crt(tfm)->base);
|
|
}
|
|
|
|
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)
|
|
{
|
|
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 int crypto_has_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_has_alg(alg_name, type, mask);
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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;
|
|
mask &= ~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;
|
|
mask &= ~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 */
|
|
|