| // Copyright (c) 2017 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. |
| |
| #![crate_name = "enclave"] |
| #![crate_type = "staticlib"] |
| |
| #![no_std] |
| |
| #[macro_use] |
| extern crate sgx_tstd as std; |
| extern crate sgx_rand; |
| #[macro_use] |
| extern crate sgx_rand_derive; |
| extern crate sgx_serialize; |
| #[macro_use] |
| extern crate sgx_serialize_derive; |
| |
| use std::fs::SgxFile; |
| use std::io::{Read, Write}; |
| |
| use sgx_serialize::{SerializeHelper, DeSerializeHelper}; |
| |
| #[derive(Copy, Clone, Default, Debug, Serializable, DeSerializable, Rand)] |
| struct RandData { |
| key: u32, |
| rand: u32, |
| } |
| |
| #[no_mangle] |
| pub extern "C" fn write_file() -> i32 { |
| |
| let rand = sgx_rand::random::<RandData>(); |
| |
| let helper = SerializeHelper::new(); |
| let data = match helper.encode(rand) { |
| Some(d) => d, |
| None => { |
| println!("encode data failed."); |
| return 1; |
| }, |
| }; |
| |
| let mut file = match SgxFile::create("sgx_file") { |
| Ok(f) => f, |
| Err(_) => { |
| println!("SgxFile::create failed."); |
| return 2; |
| }, |
| }; |
| |
| let write_size = match file.write(data.as_slice()) { |
| Ok(len) => len, |
| Err(_) => { |
| println!("SgxFile::write failed."); |
| return 3; |
| }, |
| }; |
| |
| println!("write file success, write size: {}, {:?}.", write_size, rand); |
| 0 |
| } |
| |
| #[no_mangle] |
| pub extern "C" fn read_file() -> i32 { |
| |
| let mut data = [0_u8; 10]; |
| |
| let mut file = match SgxFile::open("sgx_file") { |
| Ok(f) => f, |
| Err(_) => { |
| println!("SgxFile::open failed."); |
| return 1; |
| }, |
| }; |
| |
| let read_size = match file.read(&mut data) { |
| Ok(len) => len, |
| Err(_) => { |
| println!("SgxFile::read failed."); |
| return 2; |
| }, |
| }; |
| |
| let helper = DeSerializeHelper::<RandData>::new(data.to_vec()); |
| let rand = match helper.decode() { |
| Some(d) => d, |
| None => { |
| println!("decode data failed."); |
| return 3; |
| }, |
| }; |
| |
| println!("read file success, read size: {}, {:?}.", read_size, rand); |
| 0 |
| } |