Release 4.12 include/crypto/if_alg.h

/*
 * if_alg: User-space algorithm interface
 *
 * Copyright (c) 2010 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_IF_ALG_H

#define _CRYPTO_IF_ALG_H

#include <linux/compiler.h>
#include <linux/completion.h>
#include <linux/if_alg.h>
#include <linux/scatterlist.h>
#include <linux/types.h>
#include <net/sock.h>


#define ALG_MAX_PAGES			16

struct crypto_async_request;


struct alg_sock {
	/* struct sock must be the first member of struct alg_sock */
	
struct sock sk;

	
struct sock *parent;

	
unsigned int refcnt;
	
unsigned int nokey_refcnt;

	
const struct af_alg_type *type;
	
void *private;
};


struct af_alg_completion {
	
struct completion completion;
	
int err;
};


struct af_alg_control {
	
struct af_alg_iv *iv;
	
int op;
	
unsigned int aead_assoclen;
};


struct af_alg_type {
	
void *(*bind)(const char *name, u32 type, u32 mask);
	
void (*release)(void *private);
	
int (*setkey)(void *private, const u8 *key, unsigned int keylen);
	
int (*accept)(void *private, struct sock *sk);
	
int (*accept_nokey)(void *private, struct sock *sk);
	
int (*setauthsize)(void *private, unsigned int authsize);

	
struct proto_ops *ops;
	
struct proto_ops *ops_nokey;
	
struct module *owner;
	
char name[14];
};


struct af_alg_sgl {
	
struct scatterlist sg[ALG_MAX_PAGES + 1];
	
struct page *pages[ALG_MAX_PAGES];
	
unsigned int npages;
};

int af_alg_register_type(const struct af_alg_type *type);
int af_alg_unregister_type(const struct af_alg_type *type);

int af_alg_release(struct socket *sock);
void af_alg_release_parent(struct sock *sk);
int af_alg_accept(struct sock *sk, struct socket *newsock, bool kern);

int af_alg_make_sg(struct af_alg_sgl *sgl, struct iov_iter *iter, int len);
void af_alg_free_sg(struct af_alg_sgl *sgl);
void af_alg_link_sg(struct af_alg_sgl *sgl_prev, struct af_alg_sgl *sgl_new);

int af_alg_cmsg_send(struct msghdr *msg, struct af_alg_control *con);

int af_alg_wait_for_completion(int err, struct af_alg_completion *completion);
void af_alg_complete(struct crypto_async_request *req, int err);



static inline struct alg_sock *alg_sk(struct sock *sk)
{
	return (struct alg_sock *)sk;
}

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Herbert Xu
22
100.00%
1
100.00%
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22
100.00%
1
100.00%



static inline void af_alg_init_completion(struct af_alg_completion *completion)
{
	init_completion(&completion->completion);
}

Contributors
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20
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1
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20
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#endif	/* _CRYPTO_IF_ALG_H */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Herbert Xu
373
88.60%
4
40.00%
Tadeusz Struk
20
4.75%
1
10.00%
Stephan Mueller
19
4.51%
2
20.00%
Alexey Dobriyan
3
0.71%
1
10.00%
Al Viro
3
0.71%
1
10.00%
David Howells
3
0.71%
1
10.00%
Total
421
100.00%
10
100.00%
Directory: include/crypto

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