| <!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/mod.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>mod.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="kw">use </span>sgx_types::error::{SgxResult, SgxStatus}; |
| <span class="kw">use </span>sgx_types::function::<span class="kw-2">*</span>; |
| <span class="kw">use </span>sgx_types::metadata::MetaData; |
| <span class="kw">use </span>sgx_types::types::EnclaveMode; |
| <span class="kw">use </span>sgx_types::types::MAX_EXT_FEATURES_COUNT; |
| <span class="kw">use </span>sgx_types::types::{c_char, c_void}; |
| <span class="kw">use </span>sgx_types::types::{EnclaveId, KssConfig, MiscAttribute, SwitchlessConfig, TargetInfo}; |
| <span class="kw">use </span>std::ffi::CString; |
| <span class="kw">use </span>std::io; |
| <span class="kw">use </span>std::mem::MaybeUninit; |
| <span class="kw">use </span>std::os::unix::ffi::OsStrExt; |
| <span class="kw">use </span>std::path::{Path, PathBuf}; |
| <span class="kw">use </span>std::ptr; |
| |
| <span class="kw">mod </span>init; |
| <span class="kw">mod </span>uninit; |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>init::{args, env}; |
| |
| <span class="attribute">#[derive(Clone, Debug, Default)] |
| </span><span class="kw">pub struct </span>SgxEnclave { |
| eid: EnclaveId, |
| path: <span class="prelude-ty">Option</span><PathBuf>, |
| misc_attr: <span class="prelude-ty">Option</span><MiscAttribute>, |
| } |
| |
| <span class="kw">fn </span>cstr(path: <span class="kw-2">&</span>Path) -> io::Result<CString> { |
| <span class="prelude-val">Ok</span>(CString::new(path.as_os_str().as_bytes())<span class="question-mark">?</span>) |
| } |
| |
| <span class="kw">impl </span>SgxEnclave { |
| <span class="kw">pub fn </span>create<P: AsRef<Path>>(path: P, debug: bool) -> SgxResult<SgxEnclave> { |
| <span class="kw">let </span>pathname: CString = cstr(path.as_ref()).map_err(|<span class="kw">_</span>| SgxStatus::InvalidEnclave)<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>eid: EnclaveId = <span class="number">0</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>misc_attr: MiscAttribute = Default::default(); |
| <span class="kw">let </span>status = <span class="kw">unsafe </span>{ |
| sgx_create_enclave( |
| pathname.as_c_str().as_ptr() <span class="kw">as </span><span class="kw-2">*const </span>c_char, |
| i32::from(debug), |
| ptr::null_mut(), |
| ptr::null_mut(), |
| <span class="kw-2">&mut </span>eid <span class="kw">as </span><span class="kw-2">*mut </span>EnclaveId, |
| <span class="kw-2">&mut </span>misc_attr <span class="kw">as </span><span class="kw-2">*mut </span>MiscAttribute, |
| ) |
| }; |
| <span class="macro">ensure!</span>(status.is_success(), status); |
| |
| <span class="kw">let </span>enclave = SgxEnclave { |
| eid, |
| path: <span class="prelude-val">Some</span>(path.as_ref().to_owned()), |
| misc_attr: <span class="prelude-val">Some</span>(misc_attr), |
| }; |
| <span class="kw">let _ </span>= enclave.init(); |
| |
| <span class="prelude-val">Ok</span>(enclave) |
| } |
| |
| <span class="attribute">#[cfg_attr(feature = <span class="string">"hyper"</span>, allow(unused_variables))] |
| </span><span class="kw">pub fn </span>create_with_features<P: AsRef<Path>>( |
| path: P, |
| debug: bool, |
| features: ExtFeatures, |
| ) -> SgxResult<SgxEnclave> { |
| <span class="kw">let </span>pathname: CString = cstr(path.as_ref()).map_err(|<span class="kw">_</span>| SgxStatus::InvalidEnclave)<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>eid: EnclaveId = <span class="number">0</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>misc_attr: MiscAttribute = Default::default(); |
| <span class="kw">let </span><span class="kw-2">mut </span>features_p: [<span class="kw-2">*const </span>c_void; MAX_EXT_FEATURES_COUNT] = |
| [ptr::null(); MAX_EXT_FEATURES_COUNT]; |
| |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(<span class="kw-2">ref </span>kss) = features.kss { |
| <span class="macro">assert!</span>(features.bits.contains(ExtFeatureBits::KSS)); |
| features_p[KSS_BIT_IDX] = kss <span class="kw">as </span><span class="kw-2">*const </span><span class="kw">_ as </span><span class="kw-2">*const </span>c_void; |
| } |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(<span class="kw-2">ref </span>switchless) = features.switchless { |
| <span class="macro">cfg_if! </span>{ |
| <span class="kw">if </span><span class="attribute">#[cfg(not(feature = <span class="string">"hyper"</span>))] </span>{ |
| <span class="macro">assert!</span>(features.bits.contains(ExtFeatureBits::SWITCHLESS)); |
| features_p[SWITCHLESS_BIT_IDX] = switchless <span class="kw">as </span><span class="kw-2">*const </span><span class="kw">_ as </span><span class="kw-2">*const </span>c_void; |
| } <span class="kw">else </span>{ |
| <span class="macro">bail!</span>(SgxStatus::UnsupportedFeature); |
| } |
| } |
| } |
| |
| <span class="kw">let </span>status = <span class="kw">unsafe </span>{ |
| sgx_create_enclave_ex( |
| pathname.as_c_str().as_ptr() <span class="kw">as </span><span class="kw-2">*const </span>c_char, |
| i32::from(debug), |
| ptr::null_mut(), |
| ptr::null_mut(), |
| <span class="kw-2">&mut </span>eid <span class="kw">as </span><span class="kw-2">*mut </span>EnclaveId, |
| <span class="kw-2">&mut </span>misc_attr <span class="kw">as </span><span class="kw-2">*mut </span>MiscAttribute, |
| features.bits.bits(), |
| <span class="kw-2">&</span>features_p <span class="kw">as </span><span class="kw-2">*const </span><span class="kw">_</span>, |
| ) |
| }; |
| <span class="macro">ensure!</span>(status.is_success(), status); |
| |
| <span class="kw">let </span>enclave = SgxEnclave { |
| eid, |
| path: <span class="prelude-val">Some</span>(path.as_ref().to_owned()), |
| misc_attr: <span class="prelude-val">Some</span>(misc_attr), |
| }; |
| <span class="kw">let _ </span>= enclave.init(); |
| |
| <span class="prelude-val">Ok</span>(enclave) |
| } |
| |
| <span class="attribute">#[cfg_attr(feature = <span class="string">"hyper"</span>, allow(unused_variables))] |
| </span><span class="kw">pub fn </span>create_from_buffer<B: AsRef<[u8]>>( |
| buffer: B, |
| debug: bool, |
| features: ExtFeatures, |
| ) -> SgxResult<SgxEnclave> { |
| <span class="kw">let </span>buffer = buffer.as_ref(); |
| <span class="macro">ensure!</span>(!buffer.is_empty(), SgxStatus::InvalidParameter); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>eid: EnclaveId = <span class="number">0</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>misc_attr: MiscAttribute = Default::default(); |
| <span class="kw">let </span><span class="kw-2">mut </span>features_p: [<span class="kw-2">*const </span>c_void; MAX_EXT_FEATURES_COUNT] = |
| [ptr::null(); MAX_EXT_FEATURES_COUNT]; |
| |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(<span class="kw-2">ref </span>kss) = features.kss { |
| <span class="macro">assert!</span>(features.bits.contains(ExtFeatureBits::KSS)); |
| features_p[KSS_BIT_IDX] = kss <span class="kw">as </span><span class="kw-2">*const </span><span class="kw">_ as </span><span class="kw-2">*const </span>c_void; |
| } |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(<span class="kw-2">ref </span>switchless) = features.switchless { |
| <span class="macro">cfg_if! </span>{ |
| <span class="kw">if </span><span class="attribute">#[cfg(not(feature = <span class="string">"hyper"</span>))] </span>{ |
| <span class="macro">assert!</span>(features.bits.contains(ExtFeatureBits::SWITCHLESS)); |
| features_p[SWITCHLESS_BIT_IDX] = switchless <span class="kw">as </span><span class="kw-2">*const </span><span class="kw">_ as </span><span class="kw-2">*const </span>c_void; |
| } <span class="kw">else </span>{ |
| <span class="macro">bail!</span>(SgxStatus::UnsupportedFeature); |
| } |
| } |
| } |
| |
| <span class="kw">let </span>status = <span class="kw">unsafe </span>{ |
| sgx_create_enclave_from_buffer_ex( |
| buffer.as_ptr(), |
| buffer.len(), |
| i32::from(debug), |
| <span class="kw-2">&mut </span>eid <span class="kw">as </span><span class="kw-2">*mut </span>EnclaveId, |
| <span class="kw-2">&mut </span>misc_attr <span class="kw">as </span><span class="kw-2">*mut </span>MiscAttribute, |
| features.bits.bits(), |
| <span class="kw-2">&</span>features_p <span class="kw">as </span><span class="kw-2">*const </span><span class="kw">_</span>, |
| ) |
| }; |
| <span class="macro">ensure!</span>(status.is_success(), status); |
| |
| <span class="kw">let </span>enclave = SgxEnclave { |
| eid, |
| path: <span class="prelude-val">None</span>, |
| misc_attr: <span class="prelude-val">Some</span>(misc_attr), |
| }; |
| <span class="kw">let _ </span>= enclave.init(); |
| |
| <span class="prelude-val">Ok</span>(enclave) |
| } |
| |
| <span class="attribute">#[cfg(not(feature = <span class="string">"hyper"</span>))] |
| </span><span class="kw">pub fn </span>create_with_switchless<P: AsRef<Path>>( |
| path: P, |
| debug: bool, |
| uworkers: u32, |
| tworkers: u32, |
| ) -> SgxResult<SgxEnclave> { |
| <span class="kw">let </span>config = SwitchlessConfig { |
| uworkers, |
| tworkers, |
| ..Default::default() |
| }; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>features = ExtFeatures::new(); |
| features.set_switchless(config); |
| |
| <span class="self">Self</span>::create_with_features(path, debug, features) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>eid(<span class="kw-2">&</span><span class="self">self</span>) -> EnclaveId { |
| <span class="self">self</span>.eid |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>path(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><PathBuf> { |
| <span class="self">self</span>.path.clone() |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>misc_attr(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><MiscAttribute> { |
| <span class="self">self</span>.misc_attr |
| } |
| |
| <span class="kw">pub fn </span>target_info(<span class="kw-2">&</span><span class="self">self</span>) -> SgxResult<TargetInfo> { |
| <span class="kw">let </span><span class="kw-2">mut </span>target: TargetInfo = Default::default(); |
| <span class="kw">let </span>status = <span class="kw">unsafe </span>{ sgx_get_target_info(<span class="self">self</span>.eid, <span class="kw-2">&mut </span>target <span class="kw">as </span><span class="kw-2">*mut </span>TargetInfo) }; |
| <span class="kw">if </span>status.is_success() { |
| <span class="prelude-val">Ok</span>(target) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Err</span>(status) |
| } |
| } |
| |
| <span class="kw">pub fn </span>metadata<P: AsRef<Path>>(path: P) -> SgxResult<MetaData> { |
| <span class="kw">let </span>pathname: CString = cstr(path.as_ref()).map_err(|<span class="kw">_</span>| SgxStatus::InvalidEnclave)<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>data = MaybeUninit::zeroed(); |
| <span class="kw">let </span>status = <span class="kw">unsafe </span>{ |
| sgx_get_metadata( |
| pathname.as_c_str().as_ptr() <span class="kw">as </span><span class="kw-2">*const </span>c_char, |
| data.as_mut_ptr(), |
| ) |
| }; |
| |
| <span class="kw">if </span>status.is_success() { |
| <span class="prelude-val">Ok</span>(<span class="kw">unsafe </span>{ data.assume_init() }) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Err</span>(status) |
| } |
| } |
| |
| <span class="kw">pub fn </span>mode() -> EnclaveMode { |
| <span class="macro">cfg_if! </span>{ |
| <span class="kw">if </span><span class="attribute">#[cfg(feature = <span class="string">"sim"</span>)] </span>{ |
| EnclaveMode::Sim |
| } <span class="kw">else if </span><span class="attribute">#[cfg(feature = <span class="string">"hyper"</span>)] </span>{ |
| EnclaveMode::Hyper |
| } <span class="kw">else </span>{ |
| EnclaveMode::Hw |
| } |
| } |
| } |
| |
| <span class="attribute">#[allow(dead_code)] |
| #[inline] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">unsafe fn </span>from_eid(eid: EnclaveId) -> SgxEnclave { |
| SgxEnclave { |
| eid, |
| path: <span class="prelude-val">None</span>, |
| misc_attr: <span class="prelude-val">None</span>, |
| } |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>destroy(<span class="kw-2">&mut </span><span class="self">self</span>) -> SgxResult { |
| <span class="kw">let </span>status = <span class="kw">unsafe </span>{ sgx_destroy_enclave(<span class="self">self</span>.eid) }; |
| <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">impl </span>Drop <span class="kw">for </span>SgxEnclave { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>drop(<span class="kw-2">&mut </span><span class="self">self</span>) { |
| <span class="kw">let _ </span>= <span class="self">self</span>.exit(); |
| <span class="kw">let _ </span>= <span class="self">self</span>.destroy(); |
| } |
| } |
| |
| <span class="macro">impl_bitflags! </span>{ |
| <span class="attribute">#[repr(C)] |
| #[derive(Clone, Copy, Debug, Eq, PartialEq)] |
| </span><span class="kw">pub struct </span>ExtFeatureBits: u32 { |
| <span class="kw">const </span>PCL = <span class="number">1 </span><< PCL_BIT_IDX; |
| <span class="kw">const </span>SWITCHLESS = <span class="number">1 </span><< SWITCHLESS_BIT_IDX; |
| <span class="kw">const </span>KSS = <span class="number">1 </span><< KSS_BIT_IDX; |
| } |
| } |
| |
| <span class="kw">pub const </span>PCL_BIT_IDX: usize = <span class="number">0</span>; |
| <span class="kw">pub const </span>SWITCHLESS_BIT_IDX: usize = <span class="number">1</span>; |
| <span class="kw">pub const </span>KSS_BIT_IDX: usize = <span class="number">2</span>; |
| <span class="kw">pub const </span>LAST_BIT_IDX: usize = <span class="number">2</span>; |
| |
| <span class="attribute">#[derive(Debug, Default)] |
| </span><span class="kw">pub struct </span>ExtFeatures { |
| bits: ExtFeatureBits, |
| kss: <span class="prelude-ty">Option</span><KssConfig>, |
| switchless: <span class="prelude-ty">Option</span><SwitchlessConfig>, |
| } |
| |
| <span class="kw">impl </span>ExtFeatures { |
| <span class="kw">pub fn </span>new() -> ExtFeatures { |
| ExtFeatures { |
| bits: ExtFeatureBits::empty(), |
| kss: <span class="prelude-val">None</span>, |
| switchless: <span class="prelude-val">None</span>, |
| } |
| } |
| |
| <span class="kw">pub fn </span>set_kss(<span class="kw-2">&mut </span><span class="self">self</span>, kss: KssConfig) { |
| <span class="self">self</span>.bits |= ExtFeatureBits::KSS; |
| <span class="self">self</span>.kss = <span class="prelude-val">Some</span>(kss); |
| } |
| |
| <span class="attribute">#[cfg(not(feature = <span class="string">"hyper"</span>))] |
| </span><span class="kw">pub fn </span>set_switchless(<span class="kw-2">&mut </span><span class="self">self</span>, switchless: SwitchlessConfig) { |
| <span class="self">self</span>.bits |= ExtFeatureBits::SWITCHLESS; |
| <span class="self">self</span>.switchless = <span class="prelude-val">Some</span>(switchless); |
| } |
| } |
| </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> |
