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/*
* Copyright (c) 2010-2012 United States Government, as represented by
* the Secretary of Defense. All rights reserved.
*
* based off of the original tools/vtpm_manager code base which is:
* Copyright (c) 2005, Intel Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef VTPMMGR_H
#define VTPMMGR_H
#include <mini-os/tpmback.h>
#include <polarssl/entropy.h>
#include <polarssl/ctr_drbg.h>
#include "uuid.h"
#include "tcg.h"
#include "vtpm_manager.h"
#define RSA_KEY_SIZE 0x0800
#define RSA_CIPHER_SIZE (RSA_KEY_SIZE / 8)
struct vtpm_globals {
int tpm_fd;
TPM_KEY storage_key;
TPM_HANDLE storage_key_handle; // Key used by persistent store
TPM_AUTH_SESSION oiap; // OIAP session for storageKey
TPM_AUTHDATA storage_key_usage_auth;
TPM_AUTHDATA owner_auth;
TPM_AUTHDATA srk_auth;
entropy_context entropy;
ctr_drbg_context ctr_drbg;
};
// --------------------------- Global Values --------------------------
extern struct vtpm_globals vtpm_globals; // Key info and DMI states
TPM_RESULT vtpmmgr_init(int argc, char** argv);
void vtpmmgr_shutdown(void);
TPM_RESULT vtpmmgr_handle_cmd(const uuid_t uuid, tpmcmd_t* tpmcmd);
inline TPM_RESULT vtpmmgr_rand(unsigned char* bytes, size_t num_bytes) {
return ctr_drbg_random(&vtpm_globals.ctr_drbg, bytes, num_bytes) == 0 ? 0 : TPM_FAIL;
}
#endif
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