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 uint32_t blobauth_len; 34 unsigned char blobauth[TPM_DIGEST_SIZE]; 35 uint32_t pcrinfo_len; 36 unsigned char pcrinfo[MAX_PCRINFO_SIZE]; 37 int pcrlock; 38 uint32_t hash; 39 uint32_t policydigest_len; 40 unsigned char policydigest[MAX_DIGEST_SIZE]; 41 uint32_t policyhandle; 42 }; 43 44 extern struct key_type key_type_trusted; 45 46 #endif /* _KEYS_TRUSTED_TYPE_H */ 47