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86 lines
3.5 KiB
C
86 lines
3.5 KiB
C
/*
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* Copyright (C) 2011-2016 Intel Corporation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/**
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* File: helper.h
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* Description: Header file to some helper function to extract some enclave information
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*
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* Wrap functions to get PPID, PWK, PSID, PSVN, PSK and seal/unseal function
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*/
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#ifndef _HELPER_CPP
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#define _HELPER_CPP
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#include "se_cdefs.h"
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#include "ae_ipp.h"
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#include "sgx_tseal.h"
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#include "provision_msg.h"
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#include "epid/common/errors.h"
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/*Function to get PvE PPID: AES-128-CMAC using Provisioning Key with both CPUSVN,ISVSVN to be 0*/
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/* return PVEC_SUCCESS on success*/
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pve_status_t get_ppid(
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ppid_t* ppid);
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/*Function to retrive PWK2
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return PVEC_SUCCESS on success*/
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pve_status_t get_pwk2(
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const psvn_t* psvn,
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const uint8_t n2[NONCE_2_SIZE],
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sgx_key_128bit_t* wrap_key);
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/*Function to get PSK for Provision Enclave.
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The key is used to seal the private parameter f before sending to backend server
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return PVEC_SUCCESS on success*/
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pve_status_t get_pve_psk(const psvn_t *psvn, /*input PSVN, must not be NULL*/
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sgx_key_128bit_t *seal_key); /*output PSK*/
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/*define the struct so that we could use the pointer of it to external memory only
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It is used to prevent mixing the internal and external memory pointer together*/
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typedef struct _external_memory_byte_t{
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uint8_t byte;
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}external_memory_byte_t;
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/*Function to copy out or copy in between external memory and EPC
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to increase the readability and also to take advantage of compile time checking*/
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void pve_memcpy_out(external_memory_byte_t *dst, const void *src, uint32_t size);
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void pve_memcpy_in(void *dst, const external_memory_byte_t *src, uint32_t size);
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/*a helper function to transform sgx_read_rand error code into pve error code*/
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pve_status_t se_read_rand_error_to_pve_error(sgx_status_t error);
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/*a helper function to transform ipp error code into pve error code*/
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pve_status_t ipp_error_to_pve_error(IppStatus status);
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pve_status_t sgx_error_to_pve_error(sgx_status_t status);
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pve_status_t epid_error_to_pve_error(EpidStatus epid_result);
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#endif
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