/*
   * Copyright (C) 2010 IBM Corporation
   * Author: David Safford <safford@us.ibm.com>
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation, version 2 of the License.
   */
  
  #ifndef _KEYS_TRUSTED_TYPE_H
  #define _KEYS_TRUSTED_TYPE_H
  
  #include <linux/key.h>
  #include <linux/rcupdate.h>

  #include <linux/tpm.h>

  
  #define MIN_KEY_SIZE			32
  #define MAX_KEY_SIZE			128

  #define MAX_BLOB_SIZE			512

  #define MAX_PCRINFO_SIZE		64

  #define MAX_DIGEST_SIZE			64

  
  struct trusted_key_payload {
  	struct rcu_head rcu;
  	unsigned int key_len;
  	unsigned int blob_len;
  	unsigned char migratable;
  	unsigned char key[MAX_KEY_SIZE + 1];
  	unsigned char blob[MAX_BLOB_SIZE];
  };

  struct trusted_key_options {
  	uint16_t keytype;
  	uint32_t keyhandle;
  	unsigned char keyauth[TPM_DIGEST_SIZE];
  	unsigned char blobauth[TPM_DIGEST_SIZE];
  	uint32_t pcrinfo_len;
  	unsigned char pcrinfo[MAX_PCRINFO_SIZE];
  	int pcrlock;

  	uint32_t hash;

  	uint32_t policydigest_len;

  	unsigned char policydigest[MAX_DIGEST_SIZE];
  	uint32_t policyhandle;

  };

  extern struct key_type key_type_trusted;
  
  #endif /* _KEYS_TRUSTED_TYPE_H */