LXR linux/include/crypto/pkcs7.h

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/* PKCS#7 crypto data parser
   3 *
   4 * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
   5 * Written by David Howells (dhowells@redhat.com)
   6 */
   7
   8#ifndef _CRYPTO_PKCS7_H
   9#define _CRYPTO_PKCS7_H
  10
  11#include <linux/verification.h>
  12#include <linux/hash_info.h>
  13#include <crypto/public_key.h>
  14
  15struct key;
  16struct pkcs7_message;
  17
  18/*
  19 * pkcs7_parser.c
  20 */
  21extern struct pkcs7_message *pkcs7_parse_message(const void *data,
  22                                                 size_t datalen);
  23extern void pkcs7_free_message(struct pkcs7_message *pkcs7);
  24
  25extern int pkcs7_get_content_data(const struct pkcs7_message *pkcs7,
  26                                  const void **_data, size_t *_datalen,
  27                                  size_t *_headerlen);
  28
  29/*
  30 * pkcs7_trust.c
  31 */
  32extern int pkcs7_validate_trust(struct pkcs7_message *pkcs7,
  33                                struct key *trust_keyring);
  34
  35/*
  36 * pkcs7_verify.c
  37 */
  38extern int pkcs7_verify(struct pkcs7_message *pkcs7,
  39                        enum key_being_used_for usage);
  40
  41extern int pkcs7_supply_detached_data(struct pkcs7_message *pkcs7,
  42                                      const void *data, size_t datalen);
  43
  44extern int pkcs7_get_digest(struct pkcs7_message *pkcs7, const u8 **buf,
  45                            u32 *len, enum hash_algo *hash_algo);
  46
  47#endif /* _CRYPTO_PKCS7_H */
  48