Add sgx build, documentation, verify-enclave

sgx-jvm/jvm-enclave/standalone/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.5)
+project(standalone_sgx_verify)
+
+#
+# Enclave library
+#
+add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/../enclave ${CMAKE_CURRENT_SOURCE_DIR}/../enclave/build)
+
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -g")
+set(CMAKE_CXX_FLAGS_DEBUG "-DNDEBUG -DEDEBUG -UDEBUG -g")   # For "pre-release" mode
+
+#
+# SGX SDK
+#
+include_directories("${SGX_SDK}/include")
+
+add_library(urtslib SHARED IMPORTED)
+set_target_properties(urtslib PROPERTIES IMPORTED_LOCATION ${SGX_LIBRARY_PATH}/lib${URTS_LIB}.so)
+
+set(THREADS_PREFER_PTHREAD_FLAG ON)
+find_package(Threads REQUIRED)
+
+
+#
+# Untrusted loader app
+#
+
+include_directories(${GENERATED_RPC_DIR})
+include_directories(${CMAKE_CURRENT_SOURCE_DIR})
+include_directories(${CMAKE_CURRENT_BINARY_DIR})
+include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../common)
+# TODO: Do the "-fPIC -wno-attributes" flags matter?
+
+set(SOURCE_FILES main.cpp)
+set_source_files_properties(${GENERATED_RPC_DIR}/java_u.c PROPERTIES GENERATED TRUE)
+add_executable(standalone_sgx_verify ${SOURCE_FILES} $<TARGET_OBJECTS:common>)
+target_include_directories(standalone_sgx_verify PUBLIC ${SGX_SDK_INCLUDE})
+target_link_libraries(standalone_sgx_verify urtslib Threads::Threads)
+add_dependencies(standalone_sgx_verify enclave)

sgx-jvm/jvm-enclave/standalone/main.cpp

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+#include <sgx_urts.h>
+#include <iostream>
+#include <vector>
+#include <fstream>
+#include "sgx_utilities.h"
+#include "java_u.h"
+
+int main(int argc, char **argv) {
+    sgx_launch_token_t token = {0};
+    sgx_enclave_id_t enclave_id = {0};
+    int updated = 0;
+
+    CHECK_SGX(sgx_create_enclave("../../enclave/build/cordaenclave.signed.so", SGX_DEBUG_FLAG, &token, &updated, &enclave_id, NULL));
+
+    if (argc < 2) {
+        printf("Usage: <executable> /path/to/req/file\n");
+        exit(1);
+    }
+    std::ifstream file(argv[1]);
+    std::vector<char> reqbytes;
+    if (!file.eof() && !file.fail()) {
+        file.seekg(0, std::ios_base::end);
+        std::streampos fileSize = file.tellg();
+        reqbytes.resize(fileSize);
+
+        file.seekg(0, std::ios_base::beg);
+        file.read(&reqbytes[0], fileSize);
+    }
+    if (reqbytes.size() == 0) {
+        printf("Could not load %s\n", argv[1]);
+    }
+
+    char error[1024];
+    CHECK_SGX(check_transaction(enclave_id, reqbytes.data(), reqbytes.size(), &error[0]));
+
+    sgx_destroy_enclave(enclave_id);
+
+    return 0;
+}