| <!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 `services/utils/service_app_utils/src/lib.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>lib.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="../../teaclave_service_app_utils/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="../../teaclave_service_app_utils/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="kw">use </span>anyhow::{bail, Context, <span class="prelude-ty">Result</span>}; |
| <span class="kw">use </span>std::path::Path; |
| <span class="kw">use </span>std::sync::atomic::{AtomicBool, Ordering}; |
| <span class="kw">use </span>std::sync::Arc; |
| <span class="kw">use </span>std::thread; |
| <span class="kw">use </span>teaclave_binder::proto::{ECallCommand, StartServiceInput, StartServiceOutput}; |
| <span class="kw">use </span>teaclave_binder::TeeBinder; |
| <span class="kw">use </span>teaclave_config::RuntimeConfig; |
| <span class="kw">use </span>teaclave_types::{TeeServiceError, TeeServiceResult}; |
| |
| <span class="kw">extern </span><span class="string">"C" </span>{ |
| <span class="kw">fn </span>_exit(status: i32) -> !; |
| } |
| |
| <span class="kw">struct </span>TeaclaveServiceLauncher { |
| tee: TeeBinder, |
| config: RuntimeConfig, |
| } |
| |
| <span class="kw">impl </span>TeaclaveServiceLauncher { |
| <span class="kw">pub fn </span>new<P: AsRef<Path>>(package_name: <span class="kw-2">&</span>str, config_path: P) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>> { |
| <span class="kw">let </span>config = RuntimeConfig::from_toml(config_path.as_ref()) |
| .context(<span class="string">"Failed to load config file."</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>tee = TeeBinder::new(package_name).context(<span class="string">"Failed to new the enclave."</span>)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(<span class="self">Self </span>{ tee, config }) |
| } |
| |
| <span class="kw">pub fn </span>start(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><String> { |
| <span class="kw">let </span>input = StartServiceInput::new(<span class="self">self</span>.config.clone()); |
| <span class="kw">let </span>command = ECallCommand::StartService; |
| <span class="kw">match </span><span class="self">self |
| </span>.tee |
| .invoke::<StartServiceInput, TeeServiceResult<StartServiceOutput>>(command, input) |
| { |
| <span class="prelude-val">Err</span>(e) => <span class="macro">bail!</span>(<span class="string">"TEE invocation error: {:?}"</span>, e), |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">Err</span>(TeeServiceError::EnclaveForceTermination)) => { |
| <span class="macro">log::info!</span>(<span class="string">"Exit"</span>); |
| <span class="kw">if </span><span class="macro">cfg!</span>(sgx_sim) { |
| <span class="comment">// use _exit to force exit in simulation mode to avoid SIGSEG |
| </span><span class="kw">unsafe </span>{ |
| _exit(<span class="number">1</span>); |
| } |
| } <span class="kw">else </span>{ |
| std::process::exit(<span class="number">1</span>); |
| } |
| } |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">Err</span>(e)) => <span class="macro">bail!</span>(<span class="string">"Service exit with error: {:?}"</span>, e), |
| <span class="kw">_ </span>=> <span class="prelude-val">Ok</span>(String::from(<span class="string">"Service successfully exit"</span>)), |
| } |
| } |
| |
| <span class="kw">pub fn </span>finalize(<span class="kw-2">&</span><span class="self">self</span>) { |
| <span class="self">self</span>.tee.finalize(); |
| } |
| |
| <span class="doccomment">/// # Safety |
| /// Force to destroy current enclave. |
| </span><span class="kw">pub unsafe fn </span>destroy(<span class="kw-2">&</span><span class="self">self</span>) { |
| <span class="self">self</span>.tee.destroy(); |
| } |
| } |
| |
| <span class="kw">pub fn </span>launch_teaclave_service(host_package_name: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Result</span><()> { |
| env_logger::init_from_env( |
| env_logger::Env::new() |
| .filter_or(<span class="string">"TEACLAVE_LOG"</span>, <span class="string">"RUST_LOG"</span>) |
| .write_style_or(<span class="string">"TEACLAVE_LOG_STYLE"</span>, <span class="string">"RUST_LOG_STYLE"</span>), |
| ); |
| |
| <span class="kw">let </span>launcher = Arc::new(TeaclaveServiceLauncher::new( |
| host_package_name, |
| <span class="string">"runtime.config.toml"</span>, |
| )<span class="question-mark">?</span>); |
| <span class="kw">let </span>launcher_ref = launcher.clone(); |
| thread::spawn(<span class="kw">move </span>|| { |
| <span class="kw">let _ </span>= launcher_ref.start(); |
| <span class="kw">unsafe </span>{ libc::raise(signal_hook::SIGTERM) } |
| }); |
| |
| <span class="kw">let </span>term = Arc::new(AtomicBool::new(<span class="bool-val">false</span>)); |
| register_signals(term.clone()).context(<span class="string">"Failed to register signal handler"</span>)<span class="question-mark">?</span>; |
| |
| <span class="kw">while </span>!term.load(Ordering::Relaxed) { |
| thread::park(); |
| } |
| |
| launcher.finalize(); |
| <span class="kw">unsafe </span>{ |
| launcher.destroy(); <span class="comment">// force to destroy the enclave |
| </span>} |
| |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="kw">fn </span>register_signals(term: Arc<AtomicBool>) -> <span class="prelude-ty">Result</span><()> { |
| <span class="kw">for </span>signal <span class="kw">in </span><span class="kw-2">&</span>[ |
| signal_hook::SIGTERM, |
| signal_hook::SIGINT, |
| signal_hook::SIGHUP, |
| ] { |
| <span class="kw">let </span>term_ref = term.clone(); |
| <span class="kw">let </span>thread = std::thread::current(); |
| <span class="kw">unsafe </span>{ |
| signal_hook::register(<span class="kw-2">*</span>signal, <span class="kw">move </span>|| { |
| term_ref.store(<span class="bool-val">true</span>, Ordering::Relaxed); |
| thread.unpark(); |
| })<span class="question-mark">?</span>; |
| } |
| } |
| |
| <span class="prelude-val">Ok</span>(()) |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="teaclave_service_app_utils" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
