forked from mirrors/linux
bda850cd21
Make the determination of the trustworthiness of a key dependent on whether a key that can verify it is present in the supplied ring of trusted keys rather than whether or not the verifying key has KEY_FLAG_TRUSTED set. verify_pkcs7_signature() will return -ENOKEY if the PKCS#7 message trust chain cannot be verified. Signed-off-by: David Howells <dhowells@redhat.com>
49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
/* 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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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public Licence
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* as published by the Free Software Foundation; either version
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* 2 of the Licence, or (at your option) any later version.
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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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* 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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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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#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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