-/*
- * Cryptographic API for algorithms (i.e., low-level API).
- *
- * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
- */
#ifndef _CRYPTO_ALGAPI_H
#define _CRYPTO_ALGAPI_H
#include <linux/crypto.h>
-#include <linux/device.h>
-#include <linux/list.h>
-#include <linux/kernel.h>
-#include <linux/kthread.h>
-
-struct crypto_aead;
-struct crypto_instance;
-struct module;
-struct rtattr;
-struct seq_file;
-struct sk_buff;
-
-struct crypto_type {
- unsigned int (*ctxsize)(struct crypto_alg *alg, u32 type, u32 mask);
- unsigned int (*extsize)(struct crypto_alg *alg);
- int (*init)(struct crypto_tfm *tfm, u32 type, u32 mask);
- int (*init_tfm)(struct crypto_tfm *tfm);
- void (*show)(struct seq_file *m, struct crypto_alg *alg);
- struct crypto_alg *(*lookup)(const char *name, u32 type, u32 mask);
- void (*free)(struct crypto_instance *inst);
-
- unsigned int type;
- unsigned int maskclear;
- unsigned int maskset;
- unsigned int tfmsize;
-};
-
-struct crypto_instance {
- struct crypto_alg alg;
-
- struct crypto_template *tmpl;
- struct hlist_node list;
-
- void *__ctx[] CRYPTO_MINALIGN_ATTR;
-};
-
-struct crypto_template {
- struct list_head list;
- struct hlist_head instances;
- struct module *module;
-
- struct crypto_instance *(*alloc)(struct rtattr **tb);
- void (*free)(struct crypto_instance *inst);
- int (*create)(struct crypto_template *tmpl, struct rtattr **tb);
-
- char name[CRYPTO_MAX_ALG_NAME];
-};
-
-struct scatter_walk {
- struct scatterlist *sg;
- unsigned int offset;
-};
-
-struct blkcipher_walk {
- union {
- struct {
- struct page *page;
- unsigned long offset;
- } phys;
-
- struct {
- u8 *page;
- u8 *addr;
- } virt;
- } src, dst;
-
- struct scatter_walk in;
- unsigned int nbytes;
-
- struct scatter_walk out;
- unsigned int total;
-
- void *page;
- u8 *buffer;
- u8 *iv;
- unsigned int ivsize;
-
- int flags;
- unsigned int walk_blocksize;
- unsigned int cipher_blocksize;
- unsigned int alignmask;
-};
-
-extern const struct crypto_type crypto_blkcipher_type;
-
-struct crypto_attr_type *crypto_get_attr_type(struct rtattr **tb);
-int crypto_check_attr_type(struct rtattr **tb, u32 type);
-const char *crypto_attr_alg_name(struct rtattr *rta);
-struct crypto_alg *crypto_attr_alg2(struct rtattr *rta,
- const struct crypto_type *frontend,
- u32 type, u32 mask);
-
-static inline struct crypto_alg *crypto_attr_alg(struct rtattr *rta,
- u32 type, u32 mask)
-{
- return crypto_attr_alg2(rta, NULL, type, mask);
-}
-
-int crypto_attr_u32(struct rtattr *rta, u32 *num);
-
-/* These functions require the input/output to be aligned as u32. */
-void crypto_inc(u8 *a, unsigned int size);
-void crypto_xor(u8 *dst, const u8 *src, unsigned int size);
-
-int blkcipher_walk_done(struct blkcipher_desc *desc,
- struct blkcipher_walk *walk, int err);
-int blkcipher_walk_virt(struct blkcipher_desc *desc,
- struct blkcipher_walk *walk);
-int blkcipher_walk_phys(struct blkcipher_desc *desc,
- struct blkcipher_walk *walk);
-int blkcipher_walk_virt_block(struct blkcipher_desc *desc,
- struct blkcipher_walk *walk,
- unsigned int blocksize);
-int blkcipher_aead_walk_virt_block(struct blkcipher_desc *desc,
- struct blkcipher_walk *walk,
- struct crypto_aead *tfm,
- unsigned int blocksize);
-
-static inline void *crypto_tfm_ctx_aligned(struct crypto_tfm *tfm)
-{
- return PTR_ALIGN(crypto_tfm_ctx(tfm),
- crypto_tfm_alg_alignmask(tfm) + 1);
-}
-
-static inline struct crypto_instance *crypto_tfm_alg_instance(
- struct crypto_tfm *tfm)
-{
- return container_of(tfm->__crt_alg, struct crypto_instance, alg);
-}
-
-static inline void *crypto_instance_ctx(struct crypto_instance *inst)
-{
- return inst->__ctx;
-}
-
-static inline void *crypto_blkcipher_ctx(struct crypto_blkcipher *tfm)
-{
- return crypto_tfm_ctx(&tfm->base);
-}
-
-static inline void *crypto_blkcipher_ctx_aligned(struct crypto_blkcipher *tfm)
-{
- return crypto_tfm_ctx_aligned(&tfm->base);
-}
-
-static inline struct cipher_alg *crypto_cipher_alg(struct crypto_cipher *tfm)
-{
- return &crypto_cipher_tfm(tfm)->__crt_alg->cra_cipher;
-}
-
-static inline void blkcipher_walk_init(struct blkcipher_walk *walk,
- struct scatterlist *dst,
- struct scatterlist *src,
- unsigned int nbytes)
-{
- walk->in.sg = src;
- walk->out.sg = dst;
- walk->total = nbytes;
-}
-
-static inline struct crypto_alg *crypto_get_attr_alg(struct rtattr **tb,
- u32 type, u32 mask)
-{
- return crypto_attr_alg(tb[1], type, mask);
-}
-
-static inline int crypto_requires_sync(u32 type, u32 mask)
-{
- return (type ^ CRYPTO_ALG_ASYNC) & mask & CRYPTO_ALG_ASYNC;
-}
-
-noinline unsigned long __crypto_memneq(const void *a, const void *b, size_t size);
-
-/**
- * crypto_memneq - Compare two areas of memory without leaking
- * timing information.
- *
- * @a: One area of memory
- * @b: Another area of memory
- * @size: The size of the area.
- *
- * Returns 0 when data is equal, 1 otherwise.
- */
-static inline int crypto_memneq(const void *a, const void *b, size_t size)
-{
- return __crypto_memneq(a, b, size) != 0UL ? 1 : 0;
-}
-
-static inline void crypto_yield(u32 flags)
-{
-#if !defined(CONFIG_PREEMPT) || defined(CONFIG_PREEMPT_VOLUNTARY)
- if (flags & CRYPTO_TFM_REQ_MAY_SLEEP)
- cond_resched();
-#endif
-}
+#include <crypto/skcipher.h>
#endif /* _CRYPTO_ALGAPI_H */
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