162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-or-later */
262306a36Sopenharmony_ci/* PKCS#7 crypto data parser
362306a36Sopenharmony_ci *
462306a36Sopenharmony_ci * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
562306a36Sopenharmony_ci * Written by David Howells (dhowells@redhat.com)
662306a36Sopenharmony_ci */
762306a36Sopenharmony_ci
862306a36Sopenharmony_ci#ifndef _CRYPTO_PKCS7_H
962306a36Sopenharmony_ci#define _CRYPTO_PKCS7_H
1062306a36Sopenharmony_ci
1162306a36Sopenharmony_ci#include <linux/verification.h>
1262306a36Sopenharmony_ci#include <linux/hash_info.h>
1362306a36Sopenharmony_ci#include <crypto/public_key.h>
1462306a36Sopenharmony_ci
1562306a36Sopenharmony_cistruct key;
1662306a36Sopenharmony_cistruct pkcs7_message;
1762306a36Sopenharmony_ci
1862306a36Sopenharmony_ci/*
1962306a36Sopenharmony_ci * pkcs7_parser.c
2062306a36Sopenharmony_ci */
2162306a36Sopenharmony_ciextern struct pkcs7_message *pkcs7_parse_message(const void *data,
2262306a36Sopenharmony_ci						 size_t datalen);
2362306a36Sopenharmony_ciextern void pkcs7_free_message(struct pkcs7_message *pkcs7);
2462306a36Sopenharmony_ci
2562306a36Sopenharmony_ciextern int pkcs7_get_content_data(const struct pkcs7_message *pkcs7,
2662306a36Sopenharmony_ci				  const void **_data, size_t *_datalen,
2762306a36Sopenharmony_ci				  size_t *_headerlen);
2862306a36Sopenharmony_ci
2962306a36Sopenharmony_ci/*
3062306a36Sopenharmony_ci * pkcs7_trust.c
3162306a36Sopenharmony_ci */
3262306a36Sopenharmony_ciextern int pkcs7_validate_trust(struct pkcs7_message *pkcs7,
3362306a36Sopenharmony_ci				struct key *trust_keyring);
3462306a36Sopenharmony_ci
3562306a36Sopenharmony_ci/*
3662306a36Sopenharmony_ci * pkcs7_verify.c
3762306a36Sopenharmony_ci */
3862306a36Sopenharmony_ciextern int pkcs7_verify(struct pkcs7_message *pkcs7,
3962306a36Sopenharmony_ci			enum key_being_used_for usage);
4062306a36Sopenharmony_ci
4162306a36Sopenharmony_ciextern int pkcs7_supply_detached_data(struct pkcs7_message *pkcs7,
4262306a36Sopenharmony_ci				      const void *data, size_t datalen);
4362306a36Sopenharmony_ci
4462306a36Sopenharmony_ciextern int pkcs7_get_digest(struct pkcs7_message *pkcs7, const u8 **buf,
4562306a36Sopenharmony_ci			    u32 *len, enum hash_algo *hash_algo);
4662306a36Sopenharmony_ci
4762306a36Sopenharmony_ci#endif /* _CRYPTO_PKCS7_H */
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