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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/include/linux/verification.h
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@@ -1,12 +1,8 @@
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+/* 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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- * 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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@@ -17,6 +13,7 @@
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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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@@ -35,6 +32,7 @@
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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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@@ -44,6 +42,15 @@
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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,