mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 20:53:53 +08:00
70dec235d8
When scatterwalk is built as a module digest.c was broken because it requires the crypto_km_types structure which is in scatterwalk. This patch removes the crypto_km_types structure by encoding the logic into crypto_kmap_type directly. In fact, this even saves a few bytes of code (not to mention the data structure itself) on i386 which is about the only place where it's needed. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
175 lines
4.2 KiB
C
175 lines
4.2 KiB
C
/*
|
|
* Cryptographic API.
|
|
*
|
|
* Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
|
|
* Copyright (c) 2005 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_INTERNAL_H
|
|
#define _CRYPTO_INTERNAL_H
|
|
|
|
#include <crypto/algapi.h>
|
|
#include <linux/completion.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/highmem.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/init.h>
|
|
#include <linux/list.h>
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/notifier.h>
|
|
#include <linux/rwsem.h>
|
|
#include <linux/slab.h>
|
|
#include <asm/kmap_types.h>
|
|
|
|
/* Crypto notification events. */
|
|
enum {
|
|
CRYPTO_MSG_ALG_REQUEST,
|
|
CRYPTO_MSG_ALG_REGISTER,
|
|
CRYPTO_MSG_ALG_UNREGISTER,
|
|
CRYPTO_MSG_TMPL_REGISTER,
|
|
CRYPTO_MSG_TMPL_UNREGISTER,
|
|
};
|
|
|
|
struct crypto_instance;
|
|
struct crypto_template;
|
|
|
|
struct crypto_larval {
|
|
struct crypto_alg alg;
|
|
struct crypto_alg *adult;
|
|
struct completion completion;
|
|
u32 mask;
|
|
};
|
|
|
|
extern struct list_head crypto_alg_list;
|
|
extern struct rw_semaphore crypto_alg_sem;
|
|
extern struct blocking_notifier_head crypto_chain;
|
|
|
|
static inline enum km_type crypto_kmap_type(int out)
|
|
{
|
|
enum km_type type;
|
|
|
|
if (in_softirq())
|
|
type = out * (KM_SOFTIRQ1 - KM_SOFTIRQ0) + KM_SOFTIRQ0;
|
|
else
|
|
type = out * (KM_USER1 - KM_USER0) + KM_USER0;
|
|
|
|
return type;
|
|
}
|
|
|
|
static inline void *crypto_kmap(struct page *page, int out)
|
|
{
|
|
return kmap_atomic(page, crypto_kmap_type(out));
|
|
}
|
|
|
|
static inline void crypto_kunmap(void *vaddr, int out)
|
|
{
|
|
kunmap_atomic(vaddr, crypto_kmap_type(out));
|
|
}
|
|
|
|
static inline void crypto_yield(u32 flags)
|
|
{
|
|
if (flags & CRYPTO_TFM_REQ_MAY_SLEEP)
|
|
cond_resched();
|
|
}
|
|
|
|
#ifdef CONFIG_PROC_FS
|
|
void __init crypto_init_proc(void);
|
|
void __exit crypto_exit_proc(void);
|
|
#else
|
|
static inline void crypto_init_proc(void)
|
|
{ }
|
|
static inline void crypto_exit_proc(void)
|
|
{ }
|
|
#endif
|
|
|
|
static inline unsigned int crypto_digest_ctxsize(struct crypto_alg *alg)
|
|
{
|
|
unsigned int len = alg->cra_ctxsize;
|
|
|
|
if (alg->cra_alignmask) {
|
|
len = ALIGN(len, (unsigned long)alg->cra_alignmask + 1);
|
|
len += alg->cra_digest.dia_digestsize;
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg)
|
|
{
|
|
return alg->cra_ctxsize;
|
|
}
|
|
|
|
static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg)
|
|
{
|
|
return alg->cra_ctxsize;
|
|
}
|
|
|
|
struct crypto_alg *crypto_mod_get(struct crypto_alg *alg);
|
|
struct crypto_alg *__crypto_alg_lookup(const char *name, u32 type, u32 mask);
|
|
struct crypto_alg *crypto_alg_mod_lookup(const char *name, u32 type, u32 mask);
|
|
|
|
int crypto_init_digest_ops(struct crypto_tfm *tfm);
|
|
int crypto_init_cipher_ops(struct crypto_tfm *tfm);
|
|
int crypto_init_compress_ops(struct crypto_tfm *tfm);
|
|
|
|
void crypto_exit_digest_ops(struct crypto_tfm *tfm);
|
|
void crypto_exit_cipher_ops(struct crypto_tfm *tfm);
|
|
void crypto_exit_compress_ops(struct crypto_tfm *tfm);
|
|
|
|
void crypto_larval_error(const char *name, u32 type, u32 mask);
|
|
|
|
void crypto_shoot_alg(struct crypto_alg *alg);
|
|
struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
|
|
u32 mask);
|
|
|
|
int crypto_register_instance(struct crypto_template *tmpl,
|
|
struct crypto_instance *inst);
|
|
|
|
int crypto_register_notifier(struct notifier_block *nb);
|
|
int crypto_unregister_notifier(struct notifier_block *nb);
|
|
|
|
static inline void crypto_alg_put(struct crypto_alg *alg)
|
|
{
|
|
if (atomic_dec_and_test(&alg->cra_refcnt) && alg->cra_destroy)
|
|
alg->cra_destroy(alg);
|
|
}
|
|
|
|
static inline int crypto_tmpl_get(struct crypto_template *tmpl)
|
|
{
|
|
return try_module_get(tmpl->module);
|
|
}
|
|
|
|
static inline void crypto_tmpl_put(struct crypto_template *tmpl)
|
|
{
|
|
module_put(tmpl->module);
|
|
}
|
|
|
|
static inline int crypto_is_larval(struct crypto_alg *alg)
|
|
{
|
|
return alg->cra_flags & CRYPTO_ALG_LARVAL;
|
|
}
|
|
|
|
static inline int crypto_is_dead(struct crypto_alg *alg)
|
|
{
|
|
return alg->cra_flags & CRYPTO_ALG_DEAD;
|
|
}
|
|
|
|
static inline int crypto_is_moribund(struct crypto_alg *alg)
|
|
{
|
|
return alg->cra_flags & (CRYPTO_ALG_DEAD | CRYPTO_ALG_DYING);
|
|
}
|
|
|
|
static inline int crypto_notify(unsigned long val, void *v)
|
|
{
|
|
return blocking_notifier_call_chain(&crypto_chain, val, v);
|
|
}
|
|
|
|
#endif /* _CRYPTO_INTERNAL_H */
|
|
|