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 
20 struct 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 
29 struct 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 
43 extern struct key_type key_type_trusted;
44 
45 #endif /* _KEYS_TRUSTED_TYPE_H */
46