diff options
Diffstat (limited to 'include/crypto/if_alg.h')
| -rw-r--r-- | include/crypto/if_alg.h | 54 |
1 files changed, 24 insertions, 30 deletions
diff --git a/include/crypto/if_alg.h b/include/crypto/if_alg.h index 482461d8931d..107b797c33ec 100644 --- a/include/crypto/if_alg.h +++ b/include/crypto/if_alg.h @@ -1,13 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * 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 @@ -26,16 +21,14 @@ #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; + atomic_t refcnt; + atomic_t nokey_refcnt; const struct af_alg_type *type; void *private; @@ -51,6 +44,7 @@ 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 (*setentropy)(void *private, sockptr_t entropy, unsigned int len); int (*accept)(void *private, struct sock *sk); int (*accept_nokey)(void *private, struct sock *sk); int (*setauthsize)(void *private, unsigned int authsize); @@ -62,16 +56,16 @@ struct af_alg_type { }; struct af_alg_sgl { - struct scatterlist sg[ALG_MAX_PAGES + 1]; - struct page *pages[ALG_MAX_PAGES]; - unsigned int npages; + struct sg_table sgt; + struct scatterlist sgl[ALG_MAX_PAGES + 1]; + bool need_unpin; }; /* TX SGL entry */ struct af_alg_tsgl { struct list_head list; unsigned int cur; /* Last processed SG entry */ - struct scatterlist sg[0]; /* Array of SGs forming the SGL */ + struct scatterlist sg[]; /* Array of SGs forming the SGL */ }; #define MAX_SGL_ENTS ((4096 - sizeof(struct af_alg_tsgl)) / \ @@ -127,6 +121,7 @@ struct af_alg_async_req { * * @tsgl_list: Link to TX SGL * @iv: IV for cipher operation + * @state: Existing state for continuing operation * @aead_assoclen: Length of AAD for AEAD cipher operations * @completion: Work queue for synchronous operation * @used: TX bytes sent to kernel. This variable is used to @@ -140,12 +135,16 @@ struct af_alg_async_req { * SG? * @enc: Cryptographic operation to be performed when * recvmsg is invoked. + * @write: True if we are in the middle of a write. + * @init: True if metadata has been sent. * @len: Length of memory allocated for this data structure. + * @inflight: Non-zero when AIO requests are in flight. */ struct af_alg_ctx { struct list_head tsgl_list; void *iv; + void *state; size_t aead_assoclen; struct crypto_wait wait; @@ -153,11 +152,15 @@ struct af_alg_ctx { size_t used; atomic_t rcvused; - bool more; - bool merge; - bool enc; + bool more:1, + merge:1, + enc:1, + write:1, + init:1; unsigned int len; + + unsigned int inflight; }; int af_alg_register_type(const struct af_alg_type *type); @@ -165,13 +168,10 @@ 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_accept(struct sock *sk, struct socket *newsock, + struct proto_accept_arg *arg); -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); static inline struct alg_sock *alg_sk(struct sock *sk) { @@ -230,21 +230,15 @@ static inline bool af_alg_readable(struct sock *sk) return PAGE_SIZE <= af_alg_rcvbuf(sk); } -int af_alg_alloc_tsgl(struct sock *sk); unsigned int af_alg_count_tsgl(struct sock *sk, size_t bytes, size_t offset); void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst, size_t dst_offset); -void af_alg_free_areq_sgls(struct af_alg_async_req *areq); -int af_alg_wait_for_wmem(struct sock *sk, unsigned int flags); void af_alg_wmem_wakeup(struct sock *sk); -int af_alg_wait_for_data(struct sock *sk, unsigned flags); -void af_alg_data_wakeup(struct sock *sk); +int af_alg_wait_for_data(struct sock *sk, unsigned flags, unsigned min); int af_alg_sendmsg(struct socket *sock, struct msghdr *msg, size_t size, unsigned int ivsize); -ssize_t af_alg_sendpage(struct socket *sock, struct page *page, - int offset, size_t size, int flags); void af_alg_free_resources(struct af_alg_async_req *areq); -void af_alg_async_cb(struct crypto_async_request *_req, int err); +void af_alg_async_cb(void *data, int err); __poll_t af_alg_poll(struct file *file, struct socket *sock, poll_table *wait); struct af_alg_async_req *af_alg_alloc_areq(struct sock *sk, |