/* SPDX-License-Identifier: GPL-2.0-or-later *//* PKCS#7 crypto data parser * * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) */ #ifndef _CRYPTO_PKCS7_H#define _CRYPTO_PKCS7_H #include <linux/verification.h>#include <linux/hash_info.h>#include <crypto/public_key.h> struct key;struct pkcs7_message; /* * pkcs7_parser.c */extern struct pkcs7_message *pkcs7_parse_message(const void *data,						 size_t datalen);extern void pkcs7_free_message(struct pkcs7_message *pkcs7); extern int pkcs7_get_content_data(const struct pkcs7_message *pkcs7,				  const void **_data, size_t *_datalen,				  size_t *_headerlen); /* * pkcs7_trust.c */extern int pkcs7_validate_trust(struct pkcs7_message *pkcs7,				struct key *trust_keyring); /* * pkcs7_verify.c */extern int pkcs7_verify(struct pkcs7_message *pkcs7,			enum key_being_used_for usage); extern int pkcs7_supply_detached_data(struct pkcs7_message *pkcs7,				      const void *data, size_t datalen); extern int pkcs7_get_digest(struct pkcs7_message *pkcs7, const u8 **buf,			    u32 *len, enum hash_algo *hash_algo); #endif /* _CRYPTO_PKCS7_H */