| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/root/sunhe/incubator-teaclave/third_party/rust-sgx-sdk/sgx_urts/src/enclave/init.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>init.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../../normalize.css"><link rel="stylesheet" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../ayu.css" disabled><link rel="stylesheet" href="../../../dark.css" disabled><link rel="stylesheet" href="../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../storage.js"></script><script defer src="../../../source-script.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../main.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../sgx_urts/index.html"><div class="logo-container"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../sgx_urts/index.html"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| </pre><pre class="rust"><code><span class="comment">// Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License.. |
| |
| </span><span class="attribute">#![allow(dead_code)] |
| |
| </span><span class="kw">use </span><span class="kw">crate</span>::enclave::SgxEnclave; |
| <span class="kw">use </span>sgx_types::error::SgxResult; |
| <span class="kw">use </span>sgx_types::function::sgx_ecall; |
| <span class="kw">use </span>sgx_types::types::EnclaveId; |
| <span class="kw">use </span>std::alloc::{Allocator, Global}; |
| <span class="kw">use </span>std::env; |
| <span class="kw">use </span>std::mem; |
| <span class="kw">use </span>std::os::unix::ffi::OsStrExt; |
| <span class="kw">use </span>std::path::PathBuf; |
| <span class="kw">use </span>std::ptr; |
| <span class="kw">use </span>std::slice; |
| <span class="kw">use </span>std::vec; |
| |
| <span class="kw">impl </span>SgxEnclave { |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>init(<span class="kw-2">&</span><span class="self">self</span>) -> SgxResult { |
| <span class="kw">const </span>ECMD_INIT: i32 = i32::MAX; |
| |
| <span class="kw">let </span>env = env(); |
| <span class="kw">let </span>args = args(); |
| <span class="macro">cfg_if! </span>{ |
| <span class="kw">if </span><span class="attribute">#[cfg(feature = <span class="string">"hyper"</span>)] </span>{ |
| <span class="kw">use </span><span class="kw">crate</span>::msbuf::MsBufAlloc; |
| <span class="kw">use </span>sgx_types::error::SgxStatus; |
| |
| <span class="kw">let </span>alloc = MsBufAlloc::new(<span class="self">self</span>.eid()); |
| <span class="kw">let </span>remain_size = alloc.remain_size(); |
| |
| <span class="kw">let </span>info = InitInfo::new_with_allocator(<span class="self">self</span>.eid(), <span class="self">self</span>.path(), env, alloc); |
| <span class="macro">ensure!</span>(info.len() < remain_size, SgxStatus::OutOfMemory); |
| |
| <span class="kw">let </span>bytes = info.into_bytes_with_allocator(); |
| } <span class="kw">else </span>{ |
| <span class="kw">let </span>info = InitInfo::new(<span class="self">self</span>.eid(), <span class="self">self</span>.path(), env, args); |
| <span class="kw">let </span>bytes = info.into_bytes(); |
| } |
| } |
| |
| <span class="kw">let </span>status = |
| <span class="kw">unsafe </span>{ sgx_ecall(<span class="self">self</span>.eid(), ECMD_INIT, ptr::null(), bytes.as_ptr().cast()) }; |
| |
| <span class="kw">if </span>status.is_success() { |
| <span class="prelude-val">Ok</span>(()) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Err</span>(status) |
| } |
| } |
| } |
| |
| <span class="kw">pub fn </span>env() -> Vec<u8> { |
| <span class="kw">let </span><span class="kw-2">mut </span>result = Vec::new(); |
| <span class="kw">for </span>var <span class="kw">in </span>env::vars() { |
| result.extend_from_slice(var.<span class="number">0</span>.as_bytes()); |
| result.push(<span class="string">b'='</span>); |
| result.extend_from_slice(var.<span class="number">1</span>.as_bytes()); |
| result.push(<span class="number">0</span>); |
| } |
| result |
| } |
| |
| <span class="kw">pub fn </span>args() -> Vec<u8> { |
| <span class="kw">let </span><span class="kw-2">mut </span>result = Vec::new(); |
| <span class="kw">for </span>arg <span class="kw">in </span>env::args() { |
| result.extend_from_slice(arg.as_bytes()); |
| result.push(<span class="number">0</span>); |
| } |
| result |
| } |
| |
| <span class="attribute">#[derive(Debug)] |
| </span><span class="kw">pub struct </span>InitInfo<A: Allocator = Global> { |
| eid: EnclaveId, |
| path: <span class="prelude-ty">Option</span><PathBuf>, |
| env: Vec<u8>, |
| args: Vec<u8>, |
| alloc: A, |
| } |
| |
| <span class="kw">impl </span>InitInfo<Global> { |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>new(eid: EnclaveId, path: <span class="prelude-ty">Option</span><PathBuf>, env: Vec<u8>, args: Vec<u8>) -> InitInfo { |
| <span class="self">Self</span>::new_with_allocator(eid, path, env, args, Global) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>into_bytes(<span class="self">self</span>) -> Vec<u8> { |
| <span class="self">self</span>.into_bytes_with_allocator() |
| } |
| } |
| |
| <span class="kw">impl</span><A: Allocator> InitInfo<A> { |
| <span class="kw">pub fn </span>new_with_allocator( |
| eid: EnclaveId, |
| path: <span class="prelude-ty">Option</span><PathBuf>, |
| env: Vec<u8>, |
| args: Vec<u8>, |
| alloc: A, |
| ) -> InitInfo<A> { |
| InitInfo { |
| eid, |
| path, |
| env, |
| args, |
| alloc, |
| } |
| } |
| |
| <span class="kw">pub fn </span>len(<span class="kw-2">&</span><span class="self">self</span>) -> usize { |
| <span class="kw">let </span>path = <span class="self">self |
| </span>.path |
| .as_ref() |
| .map(|path| path.as_path().as_os_str().as_bytes()) |
| .unwrap_or(<span class="kw-2">&</span>[<span class="number">0</span>]); |
| <span class="kw">let </span>path_len = path.len(); |
| <span class="kw">let </span>env_len = <span class="self">self</span>.env.len(); |
| <span class="kw">let </span>args_len = <span class="self">self</span>.args.len(); |
| |
| mem::size_of::<InfoHeader>() + path_len + env_len + args_len |
| } |
| |
| <span class="kw">pub fn </span>into_bytes_with_allocator(<span class="self">self</span>) -> Vec<u8, A> { |
| <span class="kw">let </span>path = <span class="self">self |
| </span>.path |
| .as_ref() |
| .map(|path| path.as_path().as_os_str().as_bytes()) |
| .unwrap_or(<span class="kw-2">&</span>[<span class="number">0</span>]); |
| <span class="kw">let </span>path_len = path.len(); |
| <span class="kw">let </span>env_len = <span class="self">self</span>.env.len(); |
| <span class="kw">let </span>args_len = <span class="self">self</span>.args.len(); |
| <span class="kw">let </span>header_len = mem::size_of::<InfoHeader>(); |
| |
| <span class="kw">let </span>info_size = header_len + path_len + env_len + args_len; |
| <span class="kw">let </span><span class="kw-2">mut </span>bytes = vec::from_elem_in(<span class="number">0_u8</span>, info_size, <span class="self">self</span>.alloc); |
| |
| <span class="kw">let </span>raw_info = InfoHeader { |
| eid: <span class="self">self</span>.eid, |
| info_size, |
| path_len, |
| env_len, |
| args_len, |
| }; |
| bytes[..header_len].copy_from_slice(raw_info.as_ref()); |
| bytes[header_len..header_len + path_len].copy_from_slice(path); |
| bytes[header_len + path_len..header_len + path_len + env_len] |
| .copy_from_slice(<span class="self">self</span>.env.as_slice()); |
| bytes[header_len + path_len + env_len..].copy_from_slice(<span class="self">self</span>.args.as_slice()); |
| |
| bytes |
| } |
| } |
| |
| <span class="attribute">#[repr(C)] |
| #[derive(Clone, Copy, Debug)] |
| </span><span class="kw">pub struct </span>InfoHeader { |
| eid: EnclaveId, |
| info_size: usize, |
| path_len: usize, |
| env_len: usize, |
| args_len: usize, |
| } |
| |
| <span class="kw">impl </span>AsRef<[u8]> <span class="kw">for </span>InfoHeader { |
| <span class="kw">fn </span>as_ref(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>[u8] { |
| <span class="kw">unsafe </span>{ |
| slice::from_raw_parts(<span class="self">self </span><span class="kw">as </span><span class="kw-2">*const </span><span class="kw">_ as </span><span class="kw-2">*const </span>u8, mem::size_of::<InfoHeader>()) |
| } |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="sgx_urts" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
