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97 lines
2.5 KiB
97 lines
2.5 KiB
/* |
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* if_alg: User-space algorithm interface |
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* |
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* Copyright (c) 2010 Herbert Xu <[email protected]> |
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* |
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* This program is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License as published by the Free |
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* Software Foundation; either version 2 of the License, or (at your option) |
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* any later version. |
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* |
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*/ |
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#ifndef _CRYPTO_IF_ALG_H |
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#define _CRYPTO_IF_ALG_H |
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#include <linux/compiler.h> |
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#include <linux/completion.h> |
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#include <linux/if_alg.h> |
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#include <linux/scatterlist.h> |
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#include <linux/types.h> |
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#include <net/sock.h> |
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#define ALG_MAX_PAGES 16 |
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struct crypto_async_request; |
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struct alg_sock { |
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/* struct sock must be the first member of struct alg_sock */ |
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struct sock sk; |
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struct sock *parent; |
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unsigned int refcnt; |
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unsigned int nokey_refcnt; |
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const struct af_alg_type *type; |
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void *private; |
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}; |
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struct af_alg_completion { |
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struct completion completion; |
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int err; |
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}; |
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struct af_alg_control { |
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struct af_alg_iv *iv; |
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int op; |
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unsigned int aead_assoclen; |
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}; |
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struct af_alg_type { |
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void *(*bind)(const char *name, u32 type, u32 mask); |
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void (*release)(void *private); |
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int (*setkey)(void *private, const u8 *key, unsigned int keylen); |
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int (*accept)(void *private, struct sock *sk); |
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int (*accept_nokey)(void *private, struct sock *sk); |
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int (*setauthsize)(void *private, unsigned int authsize); |
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struct proto_ops *ops; |
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struct proto_ops *ops_nokey; |
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struct module *owner; |
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char name[14]; |
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}; |
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struct af_alg_sgl { |
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struct scatterlist sg[ALG_MAX_PAGES + 1]; |
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struct page *pages[ALG_MAX_PAGES]; |
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unsigned int npages; |
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}; |
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int af_alg_register_type(const struct af_alg_type *type); |
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int af_alg_unregister_type(const struct af_alg_type *type); |
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int af_alg_release(struct socket *sock); |
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void af_alg_release_parent(struct sock *sk); |
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int af_alg_accept(struct sock *sk, struct socket *newsock); |
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int af_alg_make_sg(struct af_alg_sgl *sgl, struct iov_iter *iter, int len); |
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void af_alg_free_sg(struct af_alg_sgl *sgl); |
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void af_alg_link_sg(struct af_alg_sgl *sgl_prev, struct af_alg_sgl *sgl_new); |
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int af_alg_cmsg_send(struct msghdr *msg, struct af_alg_control *con); |
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int af_alg_wait_for_completion(int err, struct af_alg_completion *completion); |
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void af_alg_complete(struct crypto_async_request *req, int err); |
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static inline struct alg_sock *alg_sk(struct sock *sk) |
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{ |
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return (struct alg_sock *)sk; |
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} |
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static inline void af_alg_init_completion(struct af_alg_completion *completion) |
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{ |
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init_completion(&completion->completion); |
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} |
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#endif /* _CRYPTO_IF_ALG_H */
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