1 /*
2  * Copyright (C) 2010 IBM Corporation
3  * Author: David Safford <safford@us.ibm.com>
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation, version 2 of the License.
8  */
9 
10 #ifndef _KEYS_TRUSTED_TYPE_H
11 #define _KEYS_TRUSTED_TYPE_H
12 
13 #include <linux/key.h>
14 #include <linux/rcupdate.h>
15 #include <linux/tpm.h>
16 
17 #define MIN_KEY_SIZE			32
18 #define MAX_KEY_SIZE			128
19 #define MAX_BLOB_SIZE			512
20 #define MAX_PCRINFO_SIZE		64
21 #define MAX_DIGEST_SIZE			64
22 
23 struct trusted_key_payload {
24 	struct rcu_head rcu;
25 	unsigned int key_len;
26 	unsigned int blob_len;
27 	unsigned char migratable;
28 	unsigned char key[MAX_KEY_SIZE + 1];
29 	unsigned char blob[MAX_BLOB_SIZE];
30 };
31 
32 struct trusted_key_options {
33 	uint16_t keytype;
34 	uint32_t keyhandle;
35 	unsigned char keyauth[TPM_DIGEST_SIZE];
36 	unsigned char blobauth[TPM_DIGEST_SIZE];
37 	uint32_t pcrinfo_len;
38 	unsigned char pcrinfo[MAX_PCRINFO_SIZE];
39 	int pcrlock;
40 	uint32_t hash;
41 	uint32_t policydigest_len;
42 	unsigned char policydigest[MAX_DIGEST_SIZE];
43 	uint32_t policyhandle;
44 };
45 
46 extern struct key_type key_type_trusted;
47 
48 #endif /* _KEYS_TRUSTED_TYPE_H */
49