mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 12:43:55 +08:00
66db37391d
Allow to link af_alg sgls. Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
97 lines
2.4 KiB
C
97 lines
2.4 KiB
C
/*
|
|
* 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;
|
|
|
|
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 (*setauthsize)(void *private, unsigned int authsize);
|
|
|
|
struct proto_ops *ops;
|
|
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);
|
|
int af_alg_accept(struct sock *sk, struct socket *newsock);
|
|
|
|
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;
|
|
}
|
|
|
|
static inline void af_alg_release_parent(struct sock *sk)
|
|
{
|
|
sock_put(alg_sk(sk)->parent);
|
|
}
|
|
|
|
static inline void af_alg_init_completion(struct af_alg_completion *completion)
|
|
{
|
|
init_completion(&completion->completion);
|
|
}
|
|
|
|
#endif /* _CRYPTO_IF_ALG_H */
|