[GitHub/moto-9609/android_kernel_motorola_exynos9610.git] / include / linux / verification.h

/* Signature verification
 *
 * Copyright (C) 2014 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (dhowells@redhat.com)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public Licence
 * as published by the Free Software Foundation; either version
 * 2 of the Licence, or (at your option) any later version.
 */

#ifndef _LINUX_VERIFICATION_H
#define _LINUX_VERIFICATION_H

/*
 * Indicate that both builtin trusted keys and secondary trusted keys
 * should be used.
 */
#define VERIFY_USE_SECONDARY_KEYRING ((struct key *)1UL)

/*
 * The use to which an asymmetric key is being put.
 */
enum key_being_used_for {
	VERIFYING_MODULE_SIGNATURE,
	VERIFYING_FIRMWARE_SIGNATURE,
	VERIFYING_KEXEC_PE_SIGNATURE,
	VERIFYING_KEY_SIGNATURE,
	VERIFYING_KEY_SELF_SIGNATURE,
	VERIFYING_UNSPECIFIED_SIGNATURE,
	NR__KEY_BEING_USED_FOR
};
extern const char *const key_being_used_for[NR__KEY_BEING_USED_FOR];

struct key;
struct public_key_signature;

extern int verify_signature_one(const struct public_key_signature *sig,
			   struct key *trusted_keys, const char *keyid);

#ifdef CONFIG_SYSTEM_DATA_VERIFICATION

extern int verify_pkcs7_signature(const void *data, size_t len,
				  const void *raw_pkcs7, size_t pkcs7_len,
				  struct key *trusted_keys,
				  enum key_being_used_for usage,
				  int (*view_content)(void *ctx,
						      const void *data, size_t len,
						      size_t asn1hdrlen),
				  void *ctx);

#ifdef CONFIG_SIGNED_PE_FILE_VERIFICATION
extern int verify_pefile_signature(const void *pebuf, unsigned pelen,
				   struct key *trusted_keys,
				   enum key_being_used_for usage);
#endif

#endif /* CONFIG_SYSTEM_DATA_VERIFICATION */
#endif /* _LINUX_VERIFY_PEFILE_H */
Commit	Line	Data
e68503bd DH	1	/* Signature verification
	2	*
	3	* Copyright (C) 2014 Red Hat, Inc. All Rights Reserved.
	4	* Written by David Howells (dhowells@redhat.com)
	5	*
	6	* This program is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU General Public Licence
	8	* as published by the Free Software Foundation; either version
	9	* 2 of the Licence, or (at your option) any later version.
	10	*/
	11
	12	#ifndef _LINUX_VERIFICATION_H
	13	#define _LINUX_VERIFICATION_H
	14
f70805be YS	15	/*
	16	* Indicate that both builtin trusted keys and secondary trusted keys
	17	* should be used.
	18	*/
	19	#define VERIFY_USE_SECONDARY_KEYRING ((struct key *)1UL)
	20
e68503bd DH	21	/*
	22	* The use to which an asymmetric key is being put.
	23	*/
	24	enum key_being_used_for {
	25	VERIFYING_MODULE_SIGNATURE,
	26	VERIFYING_FIRMWARE_SIGNATURE,
	27	VERIFYING_KEXEC_PE_SIGNATURE,
	28	VERIFYING_KEY_SIGNATURE,
	29	VERIFYING_KEY_SELF_SIGNATURE,
	30	VERIFYING_UNSPECIFIED_SIGNATURE,
	31	NR__KEY_BEING_USED_FOR
	32	};
	33	extern const char *const key_being_used_for[NR__KEY_BEING_USED_FOR];
	34
e68503bd	35	struct key;
cded2782 SP	36	struct public_key_signature;
	37
	38	extern int verify_signature_one(const struct public_key_signature *sig,
	39	struct key trusted_keys, const char keyid);
	40
	41	#ifdef CONFIG_SYSTEM_DATA_VERIFICATION
e68503bd DH	42
	43	extern int verify_pkcs7_signature(const void *data, size_t len,
	44	const void *raw_pkcs7, size_t pkcs7_len,
	45	struct key *trusted_keys,
e68503bd DH	46	enum key_being_used_for usage,
	47	int (view_content)(void ctx,
	48	const void *data, size_t len,
	49	size_t asn1hdrlen),
	50	void *ctx);
	51
	52	#ifdef CONFIG_SIGNED_PE_FILE_VERIFICATION
	53	extern int verify_pefile_signature(const void *pebuf, unsigned pelen,
	54	struct key *trusted_keys,
	55	enum key_being_used_for usage);
	56	#endif
	57
	58	#endif /* CONFIG_SYSTEM_DATA_VERIFICATION */
	59	#endif /* _LINUX_VERIFY_PEFILE_H */