| // Copyright (C) 2017-2018 Baidu, Inc. 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 Baidu, Inc., 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. |
| |
| #include "Enclave.h" |
| |
| #include <iostream> |
| |
| using namespace util; |
| using namespace std; |
| |
| Enclave* Enclave::instance = NULL; |
| |
| Enclave::Enclave() {} |
| |
| Enclave* Enclave::getInstance() { |
| if (instance == NULL) { |
| instance = new Enclave(); |
| } |
| |
| return instance; |
| } |
| |
| |
| Enclave::~Enclave() { |
| sgx_destroy_enclave(enclave_id); |
| } |
| |
| |
| sgx_status_t Enclave::createEnclave() { |
| sgx_status_t ret; |
| int launch_token_update = 0; |
| sgx_launch_token_t launch_token = {0}; |
| |
| memset(&launch_token, 0, sizeof(sgx_launch_token_t)); |
| |
| ret = sgx_create_enclave(this->enclave_path, |
| SGX_DEBUG_FLAG, |
| &launch_token, |
| &launch_token_update, |
| &this->enclave_id, NULL); |
| |
| if (SGX_SUCCESS != ret) { |
| Log("Error, call sgx_create_enclave fail", log::error); |
| print_error_message(ret); |
| } else { |
| Log("Enclave created, ID: %llx", this->enclave_id); |
| } |
| |
| return ret; |
| } |
| |
| sgx_status_t Enclave::raInit(sgx_ra_context_t *ra_context) { |
| sgx_status_t ret; |
| sgx_status_t status; |
| sgx_ra_context_t context = INT_MAX; |
| int enclave_lost_retry_time = 1; |
| |
| if (ra_context == NULL) { |
| Log("Error, call raInit fail", log::error); |
| return SGX_ERROR_INVALID_PARAMETER; |
| } |
| |
| do { |
| ret = enclave_init_ra(this->enclave_id, |
| &status, |
| false, |
| &context); |
| } while (SGX_ERROR_ENCLAVE_LOST == ret && enclave_lost_retry_time--); |
| |
| if (SGX_SUCCESS != ret || status) { |
| Log("Error, call enclave_ra_init fail", log::error); |
| } else { |
| Log("Call enclave_ra_init success"); |
| *ra_context = context; |
| } |
| return ret; |
| } |
| |
| void Enclave::raClose(sgx_ra_context_t ra_context) { |
| int ret = -1; |
| |
| if (INT_MAX != ra_context) { |
| int ret_save = -1; |
| sgx_status_t status; |
| ret = enclave_ra_close(enclave_id, &status, ra_context); |
| if (SGX_SUCCESS != ret || status) { |
| ret = -1; |
| Log("Error, call enclave_ra_close fail", log::error); |
| } else { |
| // enclave_ra_close was successful, let's restore the value that |
| // led us to this point in the code. |
| ret = ret_save; |
| Log("Call enclave_ra_close success"); |
| } |
| } |
| } |
| |
| sgx_enclave_id_t Enclave::getID() { |
| return this->enclave_id; |
| } |