Systemsicherheit/Assignment 7 - SGX Hands-on/SGX101_sample_code-master/RemoteAttestation/Enclave/Enclave.cpp

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#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() {
int ret = -1;
if (INT_MAX != context) {
int ret_save = -1;
ret = enclave_ra_close(enclave_id, &status, 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_destroy_enclave(enclave_id);
}
sgx_status_t Enclave::createEnclave() {
sgx_status_t ret;
int launch_token_update = 0;
int enclave_lost_retry_time = 1;
sgx_launch_token_t launch_token = {0};
memset(&launch_token, 0, sizeof(sgx_launch_token_t));
do {
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);
break;
} else {
Log("Call sgx_create_enclave success");
ret = enclave_init_ra(this->enclave_id,
&this->status,
false,
&this->context);
}
} while (SGX_ERROR_ENCLAVE_LOST == ret && enclave_lost_retry_time--);
if (ret == SGX_SUCCESS)
Log("Enclave created, ID: %llx", this->enclave_id);
return ret;
}
sgx_enclave_id_t Enclave::getID() {
return this->enclave_id;
}
sgx_status_t Enclave::getStatus() {
return this->status;
}
sgx_ra_context_t Enclave::getContext() {
return this->context;
}