/* SPDX-License-Identifier: GPL-2.0-or-later */
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/* Signature verification
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*
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* Copyright (C) 2014 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*/
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#ifndef _LINUX_VERIFICATION_H
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#define _LINUX_VERIFICATION_H
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/*
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* Indicate that both builtin trusted keys and secondary trusted keys
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* should be used.
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*/
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#define VERIFY_USE_SECONDARY_KEYRING ((struct key *)1UL)
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#define VERIFY_USE_PLATFORM_KEYRING ((struct key *)2UL)
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/*
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* The use to which an asymmetric key is being put.
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*/
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enum key_being_used_for {
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VERIFYING_MODULE_SIGNATURE,
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VERIFYING_FIRMWARE_SIGNATURE,
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VERIFYING_KEXEC_PE_SIGNATURE,
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VERIFYING_KEY_SIGNATURE,
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VERIFYING_KEY_SELF_SIGNATURE,
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VERIFYING_UNSPECIFIED_SIGNATURE,
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NR__KEY_BEING_USED_FOR
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};
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extern const char *const key_being_used_for[NR__KEY_BEING_USED_FOR];
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#ifdef CONFIG_SYSTEM_DATA_VERIFICATION
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struct key;
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struct pkcs7_message;
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extern int verify_pkcs7_signature(const void *data, size_t len,
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const void *raw_pkcs7, size_t pkcs7_len,
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struct key *trusted_keys,
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enum key_being_used_for usage,
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int (*view_content)(void *ctx,
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const void *data, size_t len,
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size_t asn1hdrlen),
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void *ctx);
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extern int verify_pkcs7_message_sig(const void *data, size_t len,
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struct pkcs7_message *pkcs7,
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struct key *trusted_keys,
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enum key_being_used_for usage,
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int (*view_content)(void *ctx,
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const void *data,
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size_t len,
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size_t asn1hdrlen),
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void *ctx);
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#ifdef CONFIG_SIGNED_PE_FILE_VERIFICATION
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extern int verify_pefile_signature(const void *pebuf, unsigned pelen,
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struct key *trusted_keys,
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enum key_being_used_for usage);
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#endif
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#endif /* CONFIG_SYSTEM_DATA_VERIFICATION */
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#endif /* _LINUX_VERIFY_PEFILE_H */
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