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 old_format; 26 unsigned char key[MAX_KEY_SIZE + 1]; 27 unsigned char blob[MAX_BLOB_SIZE]; 28 }; 29 30 struct trusted_key_options { 31 uint16_t keytype; 32 uint32_t keyhandle; 33 unsigned char keyauth[TPM_DIGEST_SIZE]; 34 uint32_t blobauth_len; 35 unsigned char blobauth[TPM_DIGEST_SIZE]; 36 uint32_t pcrinfo_len; 37 unsigned char pcrinfo[MAX_PCRINFO_SIZE]; 38 int pcrlock; 39 uint32_t hash; 40 uint32_t policydigest_len; 41 unsigned char policydigest[MAX_DIGEST_SIZE]; 42 uint32_t policyhandle; 43 }; 44 45 extern struct key_type key_type_trusted; 46 47 #endif /* _KEYS_TRUSTED_TYPE_H */ 48