1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Copyright (C) 2010 IBM Corporation
 4 * Author: David Safford <safford@us.ibm.com>
 5 */
 6
 7#ifndef _KEYS_TRUSTED_TYPE_H
 8#define _KEYS_TRUSTED_TYPE_H
 9
10#include <linux/key.h>
11#include <linux/rcupdate.h>
12#include <linux/tpm.h>
13
14#define MIN_KEY_SIZE			32
15#define MAX_KEY_SIZE			128
16#define MAX_BLOB_SIZE			512
17#define MAX_PCRINFO_SIZE		64
18#define MAX_DIGEST_SIZE			64
19
20struct trusted_key_payload {
21	struct rcu_head rcu;
22	unsigned int key_len;
23	unsigned int blob_len;
24	unsigned char migratable;
25	unsigned char key[MAX_KEY_SIZE + 1];
26	unsigned char blob[MAX_BLOB_SIZE];
27};
28
29struct trusted_key_options {
30	uint16_t keytype;
31	uint32_t keyhandle;
32	unsigned char keyauth[TPM_DIGEST_SIZE];
33	unsigned char blobauth[TPM_DIGEST_SIZE];
34	uint32_t pcrinfo_len;
35	unsigned char pcrinfo[MAX_PCRINFO_SIZE];
36	int pcrlock;
37	uint32_t hash;
38	uint32_t policydigest_len;
39	unsigned char policydigest[MAX_DIGEST_SIZE];
40	uint32_t policyhandle;
41};
42
43extern struct key_type key_type_trusted;
44
45#endif /* _KEYS_TRUSTED_TYPE_H */