| <!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 `src/extension.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>extension.rs - source</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings" ></script><script src="../../storage.js"></script><script src="../../crates.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"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></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"><div class="sidebar-menu" role="button">☰</div><a href='../../optee_teec/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu" title="themes"><img width="18" height="18" alt="Pick another theme!" src="../../brush.svg"></button><div id="theme-choices" role="menu"></div></div><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" id="help-button" title="help">?</button><a id="settings-menu" href="../../settings.html" title="settings"><img width="18" height="18" alt="Change settings" src="../../wheel.svg"></a></div></form></nav><section id="main" class="content"><div class="example-wrap"><pre class="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</span> |
| <span class="comment">// or more contributor license agreements. See the NOTICE file</span> |
| <span class="comment">// distributed with this work for additional information</span> |
| <span class="comment">// regarding copyright ownership. The ASF licenses this file</span> |
| <span class="comment">// to you under the Apache License, Version 2.0 (the</span> |
| <span class="comment">// "License"); you may not use this file except in compliance</span> |
| <span class="comment">// with the License. You may obtain a copy of the License at</span> |
| <span class="comment">//</span> |
| <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="comment">//</span> |
| <span class="comment">// Unless required by applicable law or agreed to in writing,</span> |
| <span class="comment">// software distributed under the License is distributed on an</span> |
| <span class="comment">// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span> |
| <span class="comment">// KIND, either express or implied. See the License for the</span> |
| <span class="comment">// specific language governing permissions and limitations</span> |
| <span class="comment">// under the License.</span> |
| |
| <span class="kw">use</span> <span class="ident">optee_teec_sys</span> <span class="kw">as</span> <span class="ident">raw</span>; |
| <span class="kw">use</span> <span class="ident">libc</span>::{<span class="ident">c_char</span>}; |
| <span class="kw">use</span> <span class="kw">crate</span>::{<span class="prelude-ty">Result</span>, <span class="ident">Error</span>, <span class="ident">ErrorKind</span>}; |
| |
| <span class="attribute">#[<span class="ident">repr</span>(<span class="ident">C</span>)]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">PluginMethod</span> { |
| <span class="kw">pub</span> <span class="ident">name</span>: <span class="kw-2">*</span><span class="kw">const</span> <span class="ident">c_char</span>, |
| <span class="kw">pub</span> <span class="ident">uuid</span>: <span class="ident">raw::TEEC_UUID</span>, |
| <span class="kw">pub</span> <span class="ident">init</span>: <span class="kw">fn</span>() <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">invoke</span>: <span class="kw">fn</span>( |
| <span class="ident">cmd</span>: <span class="ident">u32</span>, |
| <span class="ident">sub_cmd</span>: <span class="ident">u32</span>, |
| <span class="ident">data</span>: <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">c_char</span>, |
| <span class="ident">in_len</span>: <span class="ident">u32</span>, |
| <span class="ident">out_len</span>: <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">u32</span>, |
| ) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span>, |
| } |
| |
| <span class="doccomment">/// struct PluginParameters {</span> |
| <span class="doccomment">/// @cmd: u32, plugin cmd, defined in proto/</span> |
| <span class="doccomment">/// @sub_cmd: u32, plugin subcmd, defined in proto/</span> |
| <span class="doccomment">/// @inout: &'a mut [u8], input/output buffer shared with TA and plugin</span> |
| <span class="doccomment">/// @outlen, length of output sent to TA</span> |
| <span class="doccomment">/// }</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">PluginParameters</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span> { |
| <span class="kw">pub</span> <span class="ident">cmd</span>: <span class="ident">u32</span>, |
| <span class="kw">pub</span> <span class="ident">sub_cmd</span>: <span class="ident">u32</span>, |
| <span class="kw">pub</span> <span class="ident">inout</span>: <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="kw-2">mut</span> [<span class="ident">u8</span>], |
| <span class="ident">outlen</span>: <span class="ident">usize</span>, |
| } |
| <span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span> <span class="ident">PluginParameters</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span> { |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>(<span class="ident">cmd</span>: <span class="ident">u32</span>, <span class="ident">sub_cmd</span>: <span class="ident">u32</span>, <span class="ident">inout</span>: <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="kw-2">mut</span> [<span class="ident">u8</span>]) <span class="op">-</span><span class="op">></span> <span class="self">Self</span> { |
| <span class="self">Self</span> { |
| <span class="ident">cmd</span>: <span class="ident">cmd</span>, |
| <span class="ident">sub_cmd</span>: <span class="ident">sub_cmd</span>, |
| <span class="ident">inout</span>: <span class="ident">inout</span>, |
| <span class="ident">outlen</span>: <span class="number">0</span> <span class="kw">as</span> <span class="ident">usize</span>, |
| } |
| } |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">set_buf_from_slice</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">sendslice</span>: <span class="kw-2">&</span>[<span class="ident">u8</span>]) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="kw">if</span> <span class="self">self</span>.<span class="ident">inout</span>.<span class="ident">len</span>() <span class="op"><</span> <span class="ident">sendslice</span>.<span class="ident">len</span>() { |
| <span class="macro">println!</span>(<span class="string">"Overflow: Input length is less than output length"</span>); |
| <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">Error::new</span>(<span class="ident">ErrorKind::Security</span>)); |
| } |
| <span class="self">self</span>.<span class="ident">outlen</span> <span class="op">=</span> <span class="ident">sendslice</span>.<span class="ident">len</span>() <span class="kw">as</span> <span class="ident">usize</span>; |
| <span class="self">self</span>.<span class="ident">inout</span>[..<span class="self">self</span>.<span class="ident">outlen</span>].<span class="ident">copy_from_slice</span>(<span class="kw-2">&</span><span class="ident">sendslice</span>); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_out_slice</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="kw-2">&</span>[<span class="ident">u8</span>] { |
| <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">inout</span>[..<span class="self">self</span>.<span class="ident">outlen</span>] |
| } |
| } |
| </code></pre></div> |
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