cregit-Linux how code gets into the kernel

Release 4.12 include/crypto/algapi.h

Directory: include/crypto
/*
 * 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/list.h>
#include <linux/kernel.h>
#include <linux/skbuff.h>

struct crypto_aead;
struct crypto_instance;
struct module;
struct rtattr;
struct seq_file;


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);
	
int (*report)(struct sk_buff *skb, 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 crypto_spawn {
	
struct list_head list;
	
struct crypto_alg *alg;
	
struct crypto_instance *inst;
	
const struct crypto_type *frontend;
	
u32 mask;
};


struct crypto_queue {
	
struct list_head list;
	
struct list_head *backlog;

	
unsigned int qlen;
	
unsigned int max_qlen;
};


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;
};


struct ablkcipher_walk {
	struct {
		
struct page *page;
		
unsigned int offset;
	

} src, dst;

	
struct scatter_walk	in;
	
unsigned int		nbytes;
	
struct scatter_walk	out;
	
unsigned int		total;
	
struct list_head	buffers;
	
u8			*iv_buffer;
	
u8			*iv;
	
int			flags;
	
unsigned int		blocksize;
};

extern const struct crypto_type crypto_ablkcipher_type;
extern const struct crypto_type crypto_blkcipher_type;

void crypto_mod_put(struct crypto_alg *alg);

int crypto_register_template(struct crypto_template *tmpl);
void crypto_unregister_template(struct crypto_template *tmpl);
struct crypto_template *crypto_lookup_template(const char *name);

int crypto_register_instance(struct crypto_template *tmpl,
			     struct crypto_instance *inst);
int crypto_unregister_instance(struct crypto_instance *inst);

int crypto_init_spawn(struct crypto_spawn *spawn, struct crypto_alg *alg,
		      struct crypto_instance *inst, u32 mask);
int crypto_init_spawn2(struct crypto_spawn *spawn, struct crypto_alg *alg,
		       struct crypto_instance *inst,
		       const struct crypto_type *frontend);
int crypto_grab_spawn(struct crypto_spawn *spawn, const char *name,
		      u32 type, u32 mask);

void crypto_drop_spawn(struct crypto_spawn *spawn);
struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn, u32 type,
				    u32 mask);
void *crypto_spawn_tfm2(struct crypto_spawn *spawn);


static inline void crypto_set_spawn(struct crypto_spawn *spawn, struct crypto_instance *inst) { spawn->inst = inst; }

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Herbert Xu23100.00%1100.00%
Total23100.00%1100.00%

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); }

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Herbert Xu32100.00%1100.00%
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int crypto_attr_u32(struct rtattr *rta, u32 *num); int crypto_inst_setname(struct crypto_instance *inst, const char *name, struct crypto_alg *alg); void *crypto_alloc_instance2(const char *name, struct crypto_alg *alg, unsigned int head); struct crypto_instance *crypto_alloc_instance(const char *name, struct crypto_alg *alg); void crypto_init_queue(struct crypto_queue *queue, unsigned int max_qlen); int crypto_enqueue_request(struct crypto_queue *queue, struct crypto_async_request *request); struct crypto_async_request *crypto_dequeue_request(struct crypto_queue *queue); int crypto_tfm_in_queue(struct crypto_queue *queue, struct crypto_tfm *tfm);
static inline unsigned int crypto_queue_len(struct crypto_queue *queue) { return queue->qlen; }

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Baolin Wang18100.00%1100.00%
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void crypto_inc(u8 *a, unsigned int size); void __crypto_xor(u8 *dst, const u8 *src, unsigned int size);
static inline void crypto_xor(u8 *dst, const u8 *src, unsigned int size) { if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && __builtin_constant_p(size) && (size % sizeof(unsigned long)) == 0) { unsigned long *d = (unsigned long *)dst; unsigned long *s = (unsigned long *)src; while (size > 0) { *d++ ^= *s++; size -= sizeof(unsigned long); } } else { __crypto_xor(dst, src, size); } }

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Ard Biesheuvel106100.00%1100.00%
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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); int ablkcipher_walk_done(struct ablkcipher_request *req, struct ablkcipher_walk *walk, int err); int ablkcipher_walk_phys(struct ablkcipher_request *req, struct ablkcipher_walk *walk); void __ablkcipher_walk_complete(struct ablkcipher_walk *walk);
static inline void *crypto_tfm_ctx_aligned(struct crypto_tfm *tfm) { return PTR_ALIGN(crypto_tfm_ctx(tfm), crypto_tfm_alg_alignmask(tfm) + 1); }

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Herbert Xu29100.00%2100.00%
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static inline struct crypto_instance *crypto_tfm_alg_instance( struct crypto_tfm *tfm) { return container_of(tfm->__crt_alg, struct crypto_instance, alg); }

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Herbert Xu27100.00%1100.00%
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static inline void *crypto_instance_ctx(struct crypto_instance *inst) { return inst->__ctx; }

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Herbert Xu18100.00%1100.00%
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static inline struct ablkcipher_alg *crypto_ablkcipher_alg( struct crypto_ablkcipher *tfm) { return &crypto_ablkcipher_tfm(tfm)->__crt_alg->cra_ablkcipher; }

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Herbert Xu25100.00%1100.00%
Total25100.00%1100.00%


static inline void *crypto_ablkcipher_ctx(struct crypto_ablkcipher *tfm) { return crypto_tfm_ctx(&tfm->base); }

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Herbert Xu22100.00%1100.00%
Total22100.00%1100.00%


static inline void *crypto_ablkcipher_ctx_aligned(struct crypto_ablkcipher *tfm) { return crypto_tfm_ctx_aligned(&tfm->base); }

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Sebastian Andrzej Siewior22100.00%1100.00%
Total22100.00%1100.00%


static inline struct crypto_blkcipher *crypto_spawn_blkcipher( struct crypto_spawn *spawn) { u32 type = CRYPTO_ALG_TYPE_BLKCIPHER; u32 mask = CRYPTO_ALG_TYPE_MASK; return __crypto_blkcipher_cast(crypto_spawn_tfm(spawn, type, mask)); }

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Herbert Xu37100.00%1100.00%
Total37100.00%1100.00%


static inline void *crypto_blkcipher_ctx(struct crypto_blkcipher *tfm) { return crypto_tfm_ctx(&tfm->base); }

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Herbert Xu22100.00%1100.00%
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static inline void *crypto_blkcipher_ctx_aligned(struct crypto_blkcipher *tfm) { return crypto_tfm_ctx_aligned(&tfm->base); }

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Herbert Xu22100.00%1100.00%
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static inline struct crypto_cipher *crypto_spawn_cipher( struct crypto_spawn *spawn) { u32 type = CRYPTO_ALG_TYPE_CIPHER; u32 mask = CRYPTO_ALG_TYPE_MASK; return __crypto_cipher_cast(crypto_spawn_tfm(spawn, type, mask)); }

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Herbert Xu37100.00%1100.00%
Total37100.00%1100.00%


static inline struct cipher_alg *crypto_cipher_alg(struct crypto_cipher *tfm) { return &crypto_cipher_tfm(tfm)->__crt_alg->cra_cipher; }

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Herbert Xu25100.00%1100.00%
Total25100.00%1100.00%


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; }

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Herbert Xu48100.00%1100.00%
Total48100.00%1100.00%


static inline void ablkcipher_walk_init(struct ablkcipher_walk *walk, struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes) { walk->in.sg = src; walk->out.sg = dst; walk->total = nbytes; INIT_LIST_HEAD(&walk->buffers); }

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David S. Miller56100.00%1100.00%
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static inline void ablkcipher_walk_complete(struct ablkcipher_walk *walk) { if (unlikely(!list_empty(&walk->buffers))) __ablkcipher_walk_complete(walk); }

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David S. Miller31100.00%1100.00%
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static inline struct crypto_async_request *crypto_get_backlog( struct crypto_queue *queue) { return queue->backlog == &queue->list ? NULL : container_of(queue->backlog, struct crypto_async_request, list); }

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Herbert Xu38100.00%1100.00%
Total38100.00%1100.00%


static inline int ablkcipher_enqueue_request(struct crypto_queue *queue, struct ablkcipher_request *request) { return crypto_enqueue_request(queue, &request->base); }

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Herbert Xu28100.00%2100.00%
Total28100.00%2100.00%


static inline struct ablkcipher_request *ablkcipher_dequeue_request( struct crypto_queue *queue) { return ablkcipher_request_cast(crypto_dequeue_request(queue)); }

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Herbert Xu23100.00%2100.00%
Total23100.00%2100.00%


static inline void *ablkcipher_request_ctx(struct ablkcipher_request *req) { return req->__ctx; }

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Herbert Xu18100.00%1100.00%
Total18100.00%1100.00%


static inline int ablkcipher_tfm_in_queue(struct crypto_queue *queue, struct crypto_ablkcipher *tfm) { return crypto_tfm_in_queue(queue, crypto_ablkcipher_tfm(tfm)); }

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Herbert Xu28100.00%2100.00%
Total28100.00%2100.00%


static inline struct crypto_alg *crypto_get_attr_alg(struct rtattr **tb, u32 type, u32 mask) { return crypto_attr_alg(tb[1], type, mask); }

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Herbert Xu34100.00%1100.00%
Total34100.00%1100.00%


static inline int crypto_requires_off(u32 type, u32 mask, u32 off) { return (type ^ off) & mask & off; }

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Herbert Xu27100.00%1100.00%
Total27100.00%1100.00%

/* * Returns CRYPTO_ALG_ASYNC if type/mask requires the use of sync algorithms. * Otherwise returns zero. */
static inline int crypto_requires_sync(u32 type, u32 mask) { return crypto_requires_off(type, mask, CRYPTO_ALG_ASYNC); }

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Herbert Xu23100.00%2100.00%
Total23100.00%2100.00%

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; }

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James Yonan36100.00%1100.00%
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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 }

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Marek Vašut1957.58%150.00%
Herbert Xu1442.42%150.00%
Total33100.00%2100.00%

#endif /* _CRYPTO_ALGAPI_H */

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Herbert Xu143575.41%3577.78%
David S. Miller1839.62%12.22%
Ard Biesheuvel1437.51%36.67%
James Yonan562.94%12.22%
Steffen Klassert271.42%24.44%
Sebastian Andrzej Siewior221.16%12.22%
Marek Vašut191.00%12.22%
Baolin Wang180.95%12.22%
Total1903100.00%45100.00%
Directory: include/crypto
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