[mirror_ubuntu-jammy-kernel.git] / include / crypto / algapi.h

/*
 * 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>

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,
				const struct crypto_type *frontend);
	int (*init)(struct crypto_tfm *tfm, u32 type, u32 mask);
	int (*init_tfm)(struct crypto_tfm *tfm,
		        const struct crypto_type *frontend);
	void (*show)(struct seq_file *m, struct crypto_alg *alg);
	struct crypto_alg *(*lookup)(const char *name, u32 type, u32 mask);

	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;
	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;

	int flags;
	unsigned int blocksize;
};

extern const struct crypto_type crypto_ablkcipher_type;
extern const struct crypto_type crypto_aead_type;
extern const struct crypto_type crypto_blkcipher_type;
extern const struct crypto_type crypto_hash_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_init_spawn(struct crypto_spawn *spawn, struct crypto_alg *alg,
		      struct crypto_instance *inst, u32 mask);
void crypto_drop_spawn(struct crypto_spawn *spawn);
struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn, u32 type,
				    u32 mask);

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

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_alg(struct rtattr *rta, u32 type, u32 mask);
int crypto_attr_u32(struct rtattr *rta, u32 *num);
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);

/* 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);

static inline void *crypto_tfm_ctx_aligned(struct crypto_tfm *tfm)
{
	unsigned long addr = (unsigned long)crypto_tfm_ctx(tfm);
	unsigned long align = crypto_tfm_alg_alignmask(tfm);

	if (align <= crypto_tfm_ctx_alignment())
		align = 1;
	return (void *)ALIGN(addr, align);
}

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 struct ablkcipher_alg *crypto_ablkcipher_alg(
	struct crypto_ablkcipher *tfm)
{
	return &crypto_ablkcipher_tfm(tfm)->__crt_alg->cra_ablkcipher;
}

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

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

static inline struct aead_alg *crypto_aead_alg(struct crypto_aead *tfm)
{
	return &crypto_aead_tfm(tfm)->__crt_alg->cra_aead;
}

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

static inline struct crypto_instance *crypto_aead_alg_instance(
	struct crypto_aead *aead)
{
	return crypto_tfm_alg_instance(&aead->base);
}

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));
}

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 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));
}

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

static inline struct crypto_hash *crypto_spawn_hash(struct crypto_spawn *spawn)
{
	u32 type = CRYPTO_ALG_TYPE_HASH;
	u32 mask = CRYPTO_ALG_TYPE_HASH_MASK;

	return __crypto_hash_cast(crypto_spawn_tfm(spawn, type, mask));
}

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

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

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_async_request *crypto_get_backlog(
	struct crypto_queue *queue)
{
	return queue->backlog == &queue->list ? NULL :
	       container_of(queue->backlog, struct crypto_async_request, list);
}

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

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

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

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));
}

static inline void *aead_request_ctx(struct aead_request *req)
{
	return req->__ctx;
}

static inline void aead_request_complete(struct aead_request *req, int err)
{
	req->base.complete(&req->base, err);
}

static inline u32 aead_request_flags(struct aead_request *req)
{
	return req->base.flags;
}

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

/*
 * 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 (type ^ CRYPTO_ALG_ASYNC) & mask & CRYPTO_ALG_ASYNC;
}

#endif	/* _CRYPTO_ALGAPI_H */
Commit	Line	Data
cce9e06d HX	1	/*
	2	* Cryptographic API for algorithms (i.e., low-level API).
	3	*
	4	* Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au>
	5	*
	6	* This program is free software; you can redistribute it and/or modify it
	7	* under the terms of the GNU General Public License as published by the Free
	8	* Software Foundation; either version 2 of the License, or (at your option)
	9	* any later version.
	10	*
	11	*/
	12	#ifndef _CRYPTO_ALGAPI_H
	13	#define _CRYPTO_ALGAPI_H
	14
	15	#include <linux/crypto.h>
b5b7f088 HX	16	#include <linux/list.h>
b5b7f088 HX	17	#include <linux/kernel.h>
cce9e06d	18
4cc7720c	19	struct module;
ebc610e5	20	struct rtattr;
e853c3cf HX	21	struct seq_file;
	22
	23	struct crypto_type {
27d2a330	24	unsigned int (ctxsize)(struct crypto_alg alg, u32 type, u32 mask);
7b0bac64 HX	25	unsigned int (extsize)(struct crypto_alg alg,
7b0bac64 HX	26	const struct crypto_type *frontend);
27d2a330	27	int (init)(struct crypto_tfm tfm, u32 type, u32 mask);
7b0bac64 HX	28	int (init_tfm)(struct crypto_tfm tfm,
7b0bac64 HX	29	const struct crypto_type *frontend);
e853c3cf	30	void (show)(struct seq_file m, struct crypto_alg *alg);
7b0bac64 HX	31	struct crypto_alg (lookup)(const char *name, u32 type, u32 mask);
	32
	33	unsigned int type;
	34	unsigned int maskclear;
	35	unsigned int maskset;
	36	unsigned int tfmsize;
e853c3cf	37	};
4cc7720c HX	38
	39	struct crypto_instance {
	40	struct crypto_alg alg;
	41
	42	struct crypto_template *tmpl;
	43	struct hlist_node list;
	44
	45	void *__ctx[] CRYPTO_MINALIGN_ATTR;
	46	};
	47
	48	struct crypto_template {
	49	struct list_head list;
	50	struct hlist_head instances;
	51	struct module *module;
	52
ebc610e5	53	struct crypto_instance (alloc)(struct rtattr **tb);
4cc7720c	54	void (free)(struct crypto_instance inst);
f2ac72e8	55	int (create)(struct crypto_template tmpl, struct rtattr **tb);
4cc7720c HX	56
	57	char name[CRYPTO_MAX_ALG_NAME];
	58	};
	59
6bfd4809 HX	60	struct crypto_spawn {
	61	struct list_head list;
	62	struct crypto_alg *alg;
	63	struct crypto_instance *inst;
a73e6996	64	u32 mask;
6bfd4809 HX	65	};
6bfd4809 HX	66
b5b7f088 HX	67	struct crypto_queue {
	68	struct list_head list;
	69	struct list_head *backlog;
	70
	71	unsigned int qlen;
	72	unsigned int max_qlen;
	73	};
	74
5c64097a HX	75	struct scatter_walk {
	76	struct scatterlist *sg;
	77	unsigned int offset;
	78	};
	79
5cde0af2 HX	80	struct blkcipher_walk {
	81	union {
	82	struct {
	83	struct page *page;
	84	unsigned long offset;
	85	} phys;
	86
	87	struct {
	88	u8 *page;
	89	u8 *addr;
	90	} virt;
	91	} src, dst;
	92
	93	struct scatter_walk in;
	94	unsigned int nbytes;
	95
	96	struct scatter_walk out;
	97	unsigned int total;
	98
	99	void *page;
	100	u8 *buffer;
	101	u8 *iv;
	102
	103	int flags;
7607bd8f	104	unsigned int blocksize;
5cde0af2 HX	105	};
5cde0af2 HX	106
b5b7f088	107	extern const struct crypto_type crypto_ablkcipher_type;
1ae97820	108	extern const struct crypto_type crypto_aead_type;
5cde0af2	109	extern const struct crypto_type crypto_blkcipher_type;
055bcee3	110	extern const struct crypto_type crypto_hash_type;
5cde0af2	111
db131ef9 HX	112	void crypto_mod_put(struct crypto_alg *alg);
db131ef9 HX	113
4cc7720c HX	114	int crypto_register_template(struct crypto_template *tmpl);
	115	void crypto_unregister_template(struct crypto_template *tmpl);
	116	struct crypto_template crypto_lookup_template(const char name);
	117
6bfd4809	118	int crypto_init_spawn(struct crypto_spawn spawn, struct crypto_alg alg,
a73e6996	119	struct crypto_instance *inst, u32 mask);
6bfd4809	120	void crypto_drop_spawn(struct crypto_spawn *spawn);
2e306ee0 HX	121	struct crypto_tfm crypto_spawn_tfm(struct crypto_spawn spawn, u32 type,
2e306ee0 HX	122	u32 mask);
6bfd4809	123
378f4f51 HX	124	static inline void crypto_set_spawn(struct crypto_spawn *spawn,
	125	struct crypto_instance *inst)
	126	{
	127	spawn->inst = inst;
	128	}
	129
ebc610e5 HX	130	struct crypto_attr_type crypto_get_attr_type(struct rtattr *tb);
ebc610e5 HX	131	int crypto_check_attr_type(struct rtattr **tb, u32 type);
68b6c7d6	132	const char crypto_attr_alg_name(struct rtattr rta);
3c09f17c HX	133	struct crypto_alg crypto_attr_alg(struct rtattr rta, u32 type, u32 mask);
3c09f17c HX	134	int crypto_attr_u32(struct rtattr rta, u32 num);
70ec7bb9 HX	135	void crypto_alloc_instance2(const char name, struct crypto_alg *alg,
70ec7bb9 HX	136	unsigned int head);
7fed0bf2 HX	137	struct crypto_instance crypto_alloc_instance(const char name,
	138	struct crypto_alg *alg);
	139
b5b7f088 HX	140	void crypto_init_queue(struct crypto_queue *queue, unsigned int max_qlen);
	141	int crypto_enqueue_request(struct crypto_queue *queue,
	142	struct crypto_async_request *request);
	143	struct crypto_async_request crypto_dequeue_request(struct crypto_queue queue);
	144	int crypto_tfm_in_queue(struct crypto_queue queue, struct crypto_tfm tfm);
	145
7613636d HX	146	/* These functions require the input/output to be aligned as u32. */
	147	void crypto_inc(u8 *a, unsigned int size);
	148	void crypto_xor(u8 dst, const u8 src, unsigned int size);
	149
5cde0af2 HX	150	int blkcipher_walk_done(struct blkcipher_desc *desc,
	151	struct blkcipher_walk *walk, int err);
	152	int blkcipher_walk_virt(struct blkcipher_desc *desc,
	153	struct blkcipher_walk *walk);
	154	int blkcipher_walk_phys(struct blkcipher_desc *desc,
	155	struct blkcipher_walk *walk);
7607bd8f HX	156	int blkcipher_walk_virt_block(struct blkcipher_desc *desc,
	157	struct blkcipher_walk *walk,
	158	unsigned int blocksize);
5cde0af2 HX	159
	160	static inline void crypto_tfm_ctx_aligned(struct crypto_tfm tfm)
	161	{
	162	unsigned long addr = (unsigned long)crypto_tfm_ctx(tfm);
	163	unsigned long align = crypto_tfm_alg_alignmask(tfm);
	164
	165	if (align <= crypto_tfm_ctx_alignment())
	166	align = 1;
	167	return (void *)ALIGN(addr, align);
	168	}
	169
124b53d0 HX	170	static inline struct crypto_instance *crypto_tfm_alg_instance(
	171	struct crypto_tfm *tfm)
	172	{
	173	return container_of(tfm->__crt_alg, struct crypto_instance, alg);
	174	}
	175
4cc7720c HX	176	static inline void crypto_instance_ctx(struct crypto_instance inst)
	177	{
	178	return inst->__ctx;
	179	}
	180
b5b7f088 HX	181	static inline struct ablkcipher_alg *crypto_ablkcipher_alg(
	182	struct crypto_ablkcipher *tfm)
	183	{
	184	return &crypto_ablkcipher_tfm(tfm)->__crt_alg->cra_ablkcipher;
	185	}
	186
	187	static inline void crypto_ablkcipher_ctx(struct crypto_ablkcipher tfm)
	188	{
	189	return crypto_tfm_ctx(&tfm->base);
	190	}
	191
aa379a6a SS	192	static inline void crypto_ablkcipher_ctx_aligned(struct crypto_ablkcipher tfm)
	193	{
	194	return crypto_tfm_ctx_aligned(&tfm->base);
	195	}
	196
1ae97820 HX	197	static inline struct aead_alg crypto_aead_alg(struct crypto_aead tfm)
	198	{
	199	return &crypto_aead_tfm(tfm)->__crt_alg->cra_aead;
	200	}
	201
3c09f17c HX	202	static inline void crypto_aead_ctx(struct crypto_aead tfm)
	203	{
	204	return crypto_tfm_ctx(&tfm->base);
	205	}
	206
	207	static inline struct crypto_instance *crypto_aead_alg_instance(
	208	struct crypto_aead *aead)
	209	{
	210	return crypto_tfm_alg_instance(&aead->base);
	211	}
	212
124b53d0 HX	213	static inline struct crypto_blkcipher *crypto_spawn_blkcipher(
	214	struct crypto_spawn *spawn)
	215	{
	216	u32 type = CRYPTO_ALG_TYPE_BLKCIPHER;
332f8840	217	u32 mask = CRYPTO_ALG_TYPE_MASK;
124b53d0 HX	218
	219	return __crypto_blkcipher_cast(crypto_spawn_tfm(spawn, type, mask));
	220	}
	221
5cde0af2 HX	222	static inline void crypto_blkcipher_ctx(struct crypto_blkcipher tfm)
	223	{
	224	return crypto_tfm_ctx(&tfm->base);
	225	}
	226
	227	static inline void crypto_blkcipher_ctx_aligned(struct crypto_blkcipher tfm)
	228	{
	229	return crypto_tfm_ctx_aligned(&tfm->base);
	230	}
	231
2e306ee0 HX	232	static inline struct crypto_cipher *crypto_spawn_cipher(
	233	struct crypto_spawn *spawn)
	234	{
	235	u32 type = CRYPTO_ALG_TYPE_CIPHER;
	236	u32 mask = CRYPTO_ALG_TYPE_MASK;
	237
	238	return __crypto_cipher_cast(crypto_spawn_tfm(spawn, type, mask));
	239	}
	240
f28776a3 HX	241	static inline struct cipher_alg crypto_cipher_alg(struct crypto_cipher tfm)
	242	{
	243	return &crypto_cipher_tfm(tfm)->__crt_alg->cra_cipher;
	244	}
	245
2e306ee0 HX	246	static inline struct crypto_hash crypto_spawn_hash(struct crypto_spawn spawn)
	247	{
	248	u32 type = CRYPTO_ALG_TYPE_HASH;
	249	u32 mask = CRYPTO_ALG_TYPE_HASH_MASK;
	250
	251	return __crypto_hash_cast(crypto_spawn_tfm(spawn, type, mask));
	252	}
	253
5f7082ed HX	254	static inline void crypto_hash_ctx(struct crypto_hash tfm)
	255	{
	256	return crypto_tfm_ctx(&tfm->base);
	257	}
	258
055bcee3 HX	259	static inline void crypto_hash_ctx_aligned(struct crypto_hash tfm)
	260	{
	261	return crypto_tfm_ctx_aligned(&tfm->base);
	262	}
	263
5cde0af2 HX	264	static inline void blkcipher_walk_init(struct blkcipher_walk *walk,
	265	struct scatterlist *dst,
	266	struct scatterlist *src,
	267	unsigned int nbytes)
	268	{
	269	walk->in.sg = src;
	270	walk->out.sg = dst;
	271	walk->total = nbytes;
	272	}
	273
b5b7f088 HX	274	static inline struct crypto_async_request *crypto_get_backlog(
	275	struct crypto_queue *queue)
	276	{
	277	return queue->backlog == &queue->list ? NULL :
	278	container_of(queue->backlog, struct crypto_async_request, list);
	279	}
	280
2de98e75	281	static inline int ablkcipher_enqueue_request(struct crypto_queue *queue,
b5b7f088 HX	282	struct ablkcipher_request *request)
b5b7f088 HX	283	{
2de98e75	284	return crypto_enqueue_request(queue, &request->base);
b5b7f088 HX	285	}
	286
	287	static inline struct ablkcipher_request *ablkcipher_dequeue_request(
2de98e75	288	struct crypto_queue *queue)
b5b7f088	289	{
2de98e75	290	return ablkcipher_request_cast(crypto_dequeue_request(queue));
b5b7f088 HX	291	}
	292
	293	static inline void ablkcipher_request_ctx(struct ablkcipher_request req)
	294	{
	295	return req->__ctx;
	296	}
	297
2de98e75 HX	298	static inline int ablkcipher_tfm_in_queue(struct crypto_queue *queue,
2de98e75 HX	299	struct crypto_ablkcipher *tfm)
b5b7f088	300	{
2de98e75	301	return crypto_tfm_in_queue(queue, crypto_ablkcipher_tfm(tfm));
b5b7f088 HX	302	}
b5b7f088 HX	303
3c09f17c HX	304	static inline void aead_request_ctx(struct aead_request req)
	305	{
	306	return req->__ctx;
	307	}
	308
	309	static inline void aead_request_complete(struct aead_request *req, int err)
	310	{
	311	req->base.complete(&req->base, err);
	312	}
	313
	314	static inline u32 aead_request_flags(struct aead_request *req)
	315	{
	316	return req->base.flags;
	317	}
	318
	319	static inline struct crypto_alg crypto_get_attr_alg(struct rtattr *tb,
	320	u32 type, u32 mask)
	321	{
	322	return crypto_attr_alg(tb[1], type, mask);
	323	}
	324
378f4f51 HX	325	/*
	326	* Returns CRYPTO_ALG_ASYNC if type/mask requires the use of sync algorithms.
	327	* Otherwise returns zero.
	328	*/
	329	static inline int crypto_requires_sync(u32 type, u32 mask)
	330	{
	331	return (type ^ CRYPTO_ALG_ASYNC) & mask & CRYPTO_ALG_ASYNC;
	332	}
	333
cce9e06d HX	334	#endif /* _CRYPTO_ALGAPI_H */
cce9e06d HX	335