FM / crypto

/usr/src/kernels/4.18.0-553.121.1.el8_10.x86_64/include/crypto/

/usr/src/kernels/4.18.0-553.121.1.el8_10.x86_64/include/crypto

Name	Size	Mode	Actions
internal/	-	0755	rm
acompress.h	8120	0644	edit dl rm
aead.h	18729	0644	edit dl rm
aes.h	1058	0644	edit dl rm
akcipher.h	11989	0644	edit dl rm
algapi.h	12163	0644	edit dl rm
arc4.h	484	0644	edit dl rm
authenc.h	845	0644	edit dl rm
b128ops.h	2471	0644	edit dl rm
blowfish.h	415	0644	edit dl rm
cast5.h	590	0644	edit dl rm
cast6.h	636	0644	edit dl rm
cast_common.h	232	0644	edit dl rm
cbc.h	3562	0644	edit dl rm
chacha20.h	638	0644	edit dl rm
cryptd.h	2562	0644	edit dl rm
crypto_wq.h	161	0644	edit dl rm
ctr.h	1666	0644	edit dl rm
des.h	1403	0644	edit dl rm
dh.h	2784	0644	edit dl rm
drbg.h	9160	0644	edit dl rm
ecdh.h	2733	0644	edit dl rm
engine.h	4202	0644	edit dl rm
gcm.h	140	0644	edit dl rm
gf128mul.h	9647	0644	edit dl rm
ghash.h	381	0644	edit dl rm
hash.h	33386	0644	edit dl rm
hash_info.h	1153	0644	edit dl rm
hmac.h	173	0644	edit dl rm
if_alg.h	7128	0644	edit dl rm
kpp.h	9926	0644	edit dl rm
md5.h	497	0644	edit dl rm
morus640_glue.h	4585	0644	edit dl rm
morus1280_glue.h	4647	0644	edit dl rm
morus_common.h	720	0644	edit dl rm
null.h	341	0644	edit dl rm
padlock.h	649	0644	edit dl rm
pcrypt.h	1435	0644	edit dl rm
pkcs7.h	1388	0644	edit dl rm
poly1305.h	920	0644	edit dl rm
public_key.h	2126	0644	edit dl rm
rng.h	6820	0644	edit dl rm
scatterwalk.h	4732	0644	edit dl rm
serpent.h	712	0644	edit dl rm
sha.h	4350	0644	edit dl rm
sha1_base.h	2532	0644	edit dl rm
sha3.h	879	0644	edit dl rm
sha256_base.h	2629	0644	edit dl rm
sha512_base.h	3271	0644	edit dl rm
skcipher.h	23381	0644	edit dl rm
sm3.h	833	0644	edit dl rm
sm3_base.h	3024	0644	edit dl rm
sm4.h	754	0644	edit dl rm
speck.h	1357	0644	edit dl rm
twofish.h	755	0644	edit dl rm
xts.h	1385	0644	edit dl rm

Edit: /usr/src/kernels/4.18.0-553.121.1.el8_10.x86_64/include/crypto/acompress.h (8120B)

/*
 * Asynchronous Compression operations
 *
 * Copyright (c) 2016, Intel Corporation
 * Authors: Weigang Li <weigang.li@intel.com>
 *          Giovanni Cabiddu <giovanni.cabiddu@intel.com>
 *
 * 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_ACOMP_H
#define _CRYPTO_ACOMP_H
#include <linux/crypto.h>

#define CRYPTO_ACOMP_ALLOC_OUTPUT	0x00000001
#define CRYPTO_ACOMP_DST_MAX		131072

/**
 * struct acomp_req - asynchronous (de)compression request
 *
 * @base:	Common attributes for asynchronous crypto requests
 * @src:	Source Data
 * @dst:	Destination data
 * @slen:	Size of the input buffer
 * @dlen:	Size of the output buffer and number of bytes produced
 * @flags:	Internal flags
 * @__ctx:	Start of private context data
 */
struct acomp_req {
	struct crypto_async_request base;
	struct scatterlist *src;
	struct scatterlist *dst;
	unsigned int slen;
	unsigned int dlen;
	u32 flags;
	void *__ctx[] CRYPTO_MINALIGN_ATTR;
};

/**
 * struct crypto_acomp - user-instantiated objects which encapsulate
 * algorithms and core processing logic
 *
 * @compress:		Function performs a compress operation
 * @decompress:		Function performs a de-compress operation
 * @dst_free:		Frees destination buffer if allocated inside the
 *			algorithm
 * @reqsize:		Context size for (de)compression requests
 * @base:		Common crypto API algorithm data structure
 */
struct crypto_acomp {
	int (*compress)(struct acomp_req *req);
	int (*decompress)(struct acomp_req *req);
	void (*dst_free)(struct scatterlist *dst);
	unsigned int reqsize;
	struct crypto_tfm base;
};

/**
 * struct acomp_alg - asynchronous compression algorithm
 *
 * @compress:	Function performs a compress operation
 * @decompress:	Function performs a de-compress operation
 * @dst_free:	Frees destination buffer if allocated inside the algorithm
 * @init:	Initialize the cryptographic transformation object.
 *		This function is used to initialize the cryptographic
 *		transformation object. This function is called only once at
 *		the instantiation time, right after the transformation context
 *		was allocated. In case the cryptographic hardware has some
 *		special requirements which need to be handled by software, this
 *		function shall check for the precise requirement of the
 *		transformation and put any software fallbacks in place.
 * @exit:	Deinitialize the cryptographic transformation object. This is a
 *		counterpart to @init, used to remove various changes set in
 *		@init.
 *
 * @reqsize:	Context size for (de)compression requests
 * @base:	Common crypto API algorithm data structure
 */
struct acomp_alg {
	int (*compress)(struct acomp_req *req);
	int (*decompress)(struct acomp_req *req);
	void (*dst_free)(struct scatterlist *dst);
	int (*init)(struct crypto_acomp *tfm);
	void (*exit)(struct crypto_acomp *tfm);
	unsigned int reqsize;
	struct crypto_alg base;
};

/**
 * DOC: Asynchronous Compression API
 *
 * The Asynchronous Compression API is used with the algorithms of type
 * CRYPTO_ALG_TYPE_ACOMPRESS (listed as type "acomp" in /proc/crypto)
 */

/**
 * crypto_alloc_acomp() -- allocate ACOMPRESS tfm handle
 * @alg_name:	is the cra_name / name or cra_driver_name / driver name of the
 *		compression algorithm e.g. "deflate"
 * @type:	specifies the type of the algorithm
 * @mask:	specifies the mask for the algorithm
 *
 * Allocate a handle for a compression algorithm. The returned struct
 * crypto_acomp is the handle that is required for any subsequent
 * API invocation for the compression operations.
 *
 * Return:	allocated handle in case of success; IS_ERR() is true in case
 *		of an error, PTR_ERR() returns the error code.
 */
struct crypto_acomp *crypto_alloc_acomp(const char *alg_name, u32 type,
					u32 mask);

static inline struct crypto_tfm *crypto_acomp_tfm(struct crypto_acomp *tfm)
{
	return &tfm->base;
}

static inline struct acomp_alg *__crypto_acomp_alg(struct crypto_alg *alg)
{
	return container_of(alg, struct acomp_alg, base);
}

static inline struct crypto_acomp *__crypto_acomp_tfm(struct crypto_tfm *tfm)
{
	return container_of(tfm, struct crypto_acomp, base);
}

static inline struct acomp_alg *crypto_acomp_alg(struct crypto_acomp *tfm)
{
	return __crypto_acomp_alg(crypto_acomp_tfm(tfm)->__crt_alg);
}

static inline unsigned int crypto_acomp_reqsize(struct crypto_acomp *tfm)
{
	return tfm->reqsize;
}

static inline void acomp_request_set_tfm(struct acomp_req *req,
					 struct crypto_acomp *tfm)
{
	req->base.tfm = crypto_acomp_tfm(tfm);
}

static inline struct crypto_acomp *crypto_acomp_reqtfm(struct acomp_req *req)
{
	return __crypto_acomp_tfm(req->base.tfm);
}

/**
 * crypto_free_acomp() -- free ACOMPRESS tfm handle
 *
 * @tfm:	ACOMPRESS tfm handle allocated with crypto_alloc_acomp()
 *
 * If @tfm is a NULL or error pointer, this function does nothing.
 */
static inline void crypto_free_acomp(struct crypto_acomp *tfm)
{
	crypto_destroy_tfm(tfm, crypto_acomp_tfm(tfm));
}

static inline int crypto_has_acomp(const char *alg_name, u32 type, u32 mask)
{
	type &= ~CRYPTO_ALG_TYPE_MASK;
	type |= CRYPTO_ALG_TYPE_ACOMPRESS;
	mask |= CRYPTO_ALG_TYPE_MASK;

return crypto_has_alg(alg_name, type, mask);
}

/**
 * acomp_request_alloc() -- allocates asynchronous (de)compression request
 *
 * @tfm:	ACOMPRESS tfm handle allocated with crypto_alloc_acomp()
 *
 * Return:	allocated handle in case of success or NULL in case of an error
 */
struct acomp_req *acomp_request_alloc(struct crypto_acomp *tfm);

/**
 * acomp_request_free() -- zeroize and free asynchronous (de)compression
 *			   request as well as the output buffer if allocated
 *			   inside the algorithm
 *
 * @req:	request to free
 */
void acomp_request_free(struct acomp_req *req);

/**
 * acomp_request_set_callback() -- Sets an asynchronous callback
 *
 * Callback will be called when an asynchronous operation on a given
 * request is finished.
 *
 * @req:	request that the callback will be set for
 * @flgs:	specify for instance if the operation may backlog
 * @cmlp:	callback which will be called
 * @data:	private data used by the caller
 */
static inline void acomp_request_set_callback(struct acomp_req *req,
					      u32 flgs,
					      crypto_completion_t cmpl,
					      void *data)
{
	req->base.complete = cmpl;
	req->base.data = data;
	req->base.flags = flgs;
}

/**
 * acomp_request_set_params() -- Sets request parameters
 *
 * Sets parameters required by an acomp operation
 *
 * @req:	asynchronous compress request
 * @src:	pointer to input buffer scatterlist
 * @dst:	pointer to output buffer scatterlist. If this is NULL, the
 *		acomp layer will allocate the output memory
 * @slen:	size of the input buffer
 * @dlen:	size of the output buffer. If dst is NULL, this can be used by
 *		the user to specify the maximum amount of memory to allocate
 */
static inline void acomp_request_set_params(struct acomp_req *req,
					    struct scatterlist *src,
					    struct scatterlist *dst,
					    unsigned int slen,
					    unsigned int dlen)
{
	req->src = src;
	req->dst = dst;
	req->slen = slen;
	req->dlen = dlen;

if (!req->dst)
		req->flags |= CRYPTO_ACOMP_ALLOC_OUTPUT;
}

/**
 * crypto_acomp_compress() -- Invoke asynchronous compress operation
 *
 * Function invokes the asynchronous compress operation
 *
 * @req:	asynchronous compress request
 *
 * Return:	zero on success; error code in case of error
 */
static inline int crypto_acomp_compress(struct acomp_req *req)
{
	struct crypto_acomp *tfm = crypto_acomp_reqtfm(req);

return tfm->compress(req);
}

/**
 * crypto_acomp_decompress() -- Invoke asynchronous decompress operation
 *
 * Function invokes the asynchronous decompress operation
 *
 * @req:	asynchronous compress request
 *
 * Return:	zero on success; error code in case of error
 */
static inline int crypto_acomp_decompress(struct acomp_req *req)
{
	struct crypto_acomp *tfm = crypto_acomp_reqtfm(req);

return tfm->decompress(req);
}

#endif

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