| <!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/error.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>error.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">std::fmt</span>; |
| |
| <span class="doccomment">/// A specialized [`Result`](https://doc.rust-lang.org/std/result/enum.Result.html)</span> |
| <span class="doccomment">/// type for TEE operations.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// # Examples</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// ``` no_run</span> |
| <span class="doccomment">/// fn main() -> optee_teec::Result<()> {</span> |
| <span class="doccomment">/// let mut ctx = Context::new()?;</span> |
| <span class="doccomment">/// }</span> |
| <span class="doccomment">/// ````</span> |
| <span class="kw">pub</span> <span class="kw">type</span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> <span class="op">=</span> <span class="ident">std::result::Result</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">Error</span><span class="op">></span>; |
| |
| <span class="doccomment">/// The error type for TEE operations of [`Context`] and [`Session`].</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// [`Context`]: struct.Context.html</span> |
| <span class="doccomment">/// [`Session`]: struct.Session.html</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Error</span> { |
| <span class="ident">code</span>: <span class="ident">u32</span>, |
| } |
| |
| <span class="doccomment">/// A list specifying general categories of TEE client error and its</span> |
| <span class="doccomment">/// corresponding code in OP-TEE client library.</span> |
| <span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Clone</span>, <span class="ident">Copy</span>, <span class="ident">Debug</span>, <span class="ident">Eq</span>, <span class="ident">Hash</span>, <span class="ident">Ord</span>, <span class="ident">PartialEq</span>, <span class="ident">PartialOrd</span>)]</span> |
| <span class="attribute">#[<span class="ident">repr</span>(<span class="ident">u32</span>)]</span> |
| <span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">ErrorKind</span> { |
| <span class="doccomment">/// Non-specific cause.</span> |
| <span class="ident">Generic</span> <span class="op">=</span> <span class="number">0xFFFF0000</span>, |
| <span class="doccomment">/// Access privileges are not sufficient.</span> |
| <span class="ident">AccessDenied</span> <span class="op">=</span> <span class="number">0xFFFF0001</span>, |
| <span class="doccomment">/// The operation was canceled.</span> |
| <span class="ident">Cancel</span> <span class="op">=</span> <span class="number">0xFFFF0002</span>, |
| <span class="doccomment">/// Concurrent accesses caused conflict.</span> |
| <span class="ident">AccessConflict</span> <span class="op">=</span> <span class="number">0xFFFF0003</span>, |
| <span class="doccomment">/// Too much data for the requested operation was passed.</span> |
| <span class="ident">ExcessData</span> <span class="op">=</span> <span class="number">0xFFFF0004</span>, |
| <span class="doccomment">/// Input data was of invalid format.</span> |
| <span class="ident">BadFormat</span> <span class="op">=</span> <span class="number">0xFFFF0005</span>, |
| <span class="doccomment">/// Input parameters were invalid.</span> |
| <span class="ident">BadParameters</span> <span class="op">=</span> <span class="number">0xFFFF0006</span>, |
| <span class="doccomment">/// Operation is not valid in the current state.</span> |
| <span class="ident">BadState</span> <span class="op">=</span> <span class="number">0xFFFF0007</span>, |
| <span class="doccomment">/// The requested data item is not found.</span> |
| <span class="ident">ItemNotFound</span> <span class="op">=</span> <span class="number">0xFFFF0008</span>, |
| <span class="doccomment">/// The requested operation should exist but is not yet implemented.</span> |
| <span class="ident">NotImplemented</span> <span class="op">=</span> <span class="number">0xFFFF0009</span>, |
| <span class="doccomment">/// The requested operation is valid but is not supported in this implementation.</span> |
| <span class="ident">NotSupported</span> <span class="op">=</span> <span class="number">0xFFFF000A</span>, |
| <span class="doccomment">/// Expected data was missing.</span> |
| <span class="ident">NoData</span> <span class="op">=</span> <span class="number">0xFFFF000B</span>, |
| <span class="doccomment">/// System ran out of resources.</span> |
| <span class="ident">OutOfMemory</span> <span class="op">=</span> <span class="number">0xFFFF000C</span>, |
| <span class="doccomment">/// The system is busy working on something else.</span> |
| <span class="ident">Busy</span> <span class="op">=</span> <span class="number">0xFFFF000D</span>, |
| <span class="doccomment">/// Communication with a remote party failed.</span> |
| <span class="ident">Communication</span> <span class="op">=</span> <span class="number">0xFFFF000E</span>, |
| <span class="doccomment">/// A security fault was detected.</span> |
| <span class="ident">Security</span> <span class="op">=</span> <span class="number">0xFFFF000F</span>, |
| <span class="doccomment">/// The supplied buffer is too short for the generated output.</span> |
| <span class="ident">ShortBuffer</span> <span class="op">=</span> <span class="number">0xFFFF0010</span>, |
| <span class="doccomment">/// Implementation defined error code.</span> |
| <span class="ident">ExternalCancel</span> <span class="op">=</span> <span class="number">0xFFFF0011</span>, |
| <span class="doccomment">/// Implementation defined error code: trusted Application has panicked during the operation.</span> |
| <span class="ident">TargetDead</span> <span class="op">=</span> <span class="number">0xFFFF3024</span>, |
| <span class="doccomment">/// Unknown error.</span> |
| <span class="ident">Unknown</span>, |
| } |
| |
| <span class="kw">impl</span> <span class="ident">ErrorKind</span> { |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">as_str</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="lifetime">'static</span> <span class="ident">str</span> { |
| <span class="kw">match</span> <span class="kw-2">*</span><span class="self">self</span> { |
| <span class="ident">ErrorKind::Generic</span> <span class="op">=</span><span class="op">></span> <span class="string">"Non-specific cause."</span>, |
| <span class="ident">ErrorKind::AccessDenied</span> <span class="op">=</span><span class="op">></span> <span class="string">"Access privileges are not sufficient."</span>, |
| <span class="ident">ErrorKind::Cancel</span> <span class="op">=</span><span class="op">></span> <span class="string">"The operation was canceled."</span>, |
| <span class="ident">ErrorKind::AccessConflict</span> <span class="op">=</span><span class="op">></span> <span class="string">"Concurrent accesses caused conflict."</span>, |
| <span class="ident">ErrorKind::ExcessData</span> <span class="op">=</span><span class="op">></span> <span class="string">"Too much data for the requested operation was passed."</span>, |
| <span class="ident">ErrorKind::BadFormat</span> <span class="op">=</span><span class="op">></span> <span class="string">"Input data was of invalid format."</span>, |
| <span class="ident">ErrorKind::BadParameters</span> <span class="op">=</span><span class="op">></span> <span class="string">"Input parameters were invalid."</span>, |
| <span class="ident">ErrorKind::BadState</span> <span class="op">=</span><span class="op">></span> <span class="string">"Operation is not valid in the current state."</span>, |
| <span class="ident">ErrorKind::ItemNotFound</span> <span class="op">=</span><span class="op">></span> <span class="string">"The requested data item is not found."</span>, |
| <span class="ident">ErrorKind::NotImplemented</span> <span class="op">=</span><span class="op">></span> { |
| <span class="string">"The requested operation should exist but is not yet implemented."</span> |
| } |
| <span class="ident">ErrorKind::NotSupported</span> <span class="op">=</span><span class="op">></span> { |
| <span class="string">"The requested operation is valid but is not supported in this implementation."</span> |
| } |
| <span class="ident">ErrorKind::NoData</span> <span class="op">=</span><span class="op">></span> <span class="string">"Expected data was missing."</span>, |
| <span class="ident">ErrorKind::OutOfMemory</span> <span class="op">=</span><span class="op">></span> <span class="string">"System ran out of resources."</span>, |
| <span class="ident">ErrorKind::Busy</span> <span class="op">=</span><span class="op">></span> <span class="string">"The system is busy working on something else."</span>, |
| <span class="ident">ErrorKind::Communication</span> <span class="op">=</span><span class="op">></span> <span class="string">"Communication with a remote party failed."</span>, |
| <span class="ident">ErrorKind::Security</span> <span class="op">=</span><span class="op">></span> <span class="string">"A security fault was detected."</span>, |
| <span class="ident">ErrorKind::ShortBuffer</span> <span class="op">=</span><span class="op">></span> <span class="string">"The supplied buffer is too short for the generated output."</span>, |
| <span class="ident">ErrorKind::ExternalCancel</span> <span class="op">=</span><span class="op">></span> <span class="string">"Undocumented."</span>, |
| <span class="ident">ErrorKind::TargetDead</span> <span class="op">=</span><span class="op">></span> <span class="string">"Trusted Application has panicked during the operation."</span>, |
| <span class="ident">ErrorKind::Unknown</span> <span class="op">=</span><span class="op">></span> <span class="string">"Unknown error."</span>, |
| } |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Error</span> { |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>(<span class="ident">kind</span>: <span class="ident">ErrorKind</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Error</span> { |
| <span class="ident">Error</span> { <span class="ident">code</span>: <span class="ident">kind</span> <span class="kw">as</span> <span class="ident">u32</span> } |
| } |
| <span class="doccomment">/// Creates a new instance of an `Error` from a particular TEE error code.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// # Examples</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// ``` no_run</span> |
| <span class="doccomment">/// use optee_teec;</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// let error = optee_teec::Error::from_raw_error(0xFFFF000F);</span> |
| <span class="doccomment">/// assert_eq!(error.kind(), optee_teec::ErrorKind::Security);</span> |
| <span class="doccomment">/// ```</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">from_raw_error</span>(<span class="ident">code</span>: <span class="ident">u32</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Error</span> { |
| <span class="ident">Error</span> { <span class="ident">code</span> } |
| } |
| |
| <span class="doccomment">/// Returns the corresponding `ErrorKind` for this error.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// # Examples</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// ``` no_run</span> |
| <span class="doccomment">/// use optee_teec;</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// let error = optee_teec::Error::new(optee_teec::ErrorKind::Security);</span> |
| <span class="doccomment">/// ```</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">kind</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">ErrorKind</span> { |
| <span class="kw">match</span> <span class="self">self</span>.<span class="ident">code</span> { |
| <span class="ident">raw::TEEC_ERROR_GENERIC</span> <span class="op">=</span><span class="op">></span> <span class="ident">ErrorKind::Generic</span>, |
| <span class="ident">raw::TEEC_ERROR_ACCESS_DENIED</span> <span class="op">=</span><span class="op">></span> <span class="ident">ErrorKind::AccessDenied</span>, |
| <span class="ident">raw::TEEC_ERROR_CANCEL</span> <span class="op">=</span><span class="op">></span> <span class="ident">ErrorKind::Cancel</span>, |
| <span class="ident">raw::TEEC_ERROR_ACCESS_CONFLICT</span> <span class="op">=</span><span class="op">></span> <span class="ident">ErrorKind::AccessConflict</span>, |
| <span class="ident">raw::TEEC_ERROR_EXCESS_DATA</span> <span class="op">=</span><span class="op">></span> <span class="ident">ErrorKind::ExcessData</span>, |
| <span class="ident">raw::TEEC_ERROR_BAD_FORMAT</span> <span class="op">=</span><span class="op">></span> <span class="ident">ErrorKind::BadFormat</span>, |
| <span class="ident">raw::TEEC_ERROR_BAD_PARAMETERS</span> <span class="op">=</span><span class="op">></span> <span class="ident">ErrorKind::BadParameters</span>, |
| <span class="ident">raw::TEEC_ERROR_BAD_STATE</span> <span class="op">=</span><span class="op">></span> <span class="ident">ErrorKind::BadState</span>, |
| <span class="ident">raw::TEEC_ERROR_ITEM_NOT_FOUND</span> <span class="op">=</span><span class="op">></span> <span class="ident">ErrorKind::ItemNotFound</span>, |
| <span class="ident">raw::TEEC_ERROR_NOT_IMPLEMENTED</span> <span class="op">=</span><span class="op">></span> <span class="ident">ErrorKind::NotImplemented</span>, |
| <span class="ident">raw::TEEC_ERROR_NOT_SUPPORTED</span> <span class="op">=</span><span class="op">></span> <span class="ident">ErrorKind::NotSupported</span>, |
| <span class="ident">raw::TEEC_ERROR_NO_DATA</span> <span class="op">=</span><span class="op">></span> <span class="ident">ErrorKind::NoData</span>, |
| <span class="ident">raw::TEEC_ERROR_OUT_OF_MEMORY</span> <span class="op">=</span><span class="op">></span> <span class="ident">ErrorKind::OutOfMemory</span>, |
| <span class="ident">raw::TEEC_ERROR_BUSY</span> <span class="op">=</span><span class="op">></span> <span class="ident">ErrorKind::Busy</span>, |
| <span class="ident">raw::TEEC_ERROR_COMMUNICATION</span> <span class="op">=</span><span class="op">></span> <span class="ident">ErrorKind::Communication</span>, |
| <span class="ident">raw::TEEC_ERROR_SECURITY</span> <span class="op">=</span><span class="op">></span> <span class="ident">ErrorKind::Security</span>, |
| <span class="ident">raw::TEEC_ERROR_SHORT_BUFFER</span> <span class="op">=</span><span class="op">></span> <span class="ident">ErrorKind::ShortBuffer</span>, |
| <span class="ident">raw::TEEC_ERROR_EXTERNAL_CANCEL</span> <span class="op">=</span><span class="op">></span> <span class="ident">ErrorKind::ExternalCancel</span>, |
| <span class="ident">raw::TEEC_ERROR_TARGET_DEAD</span> <span class="op">=</span><span class="op">></span> <span class="ident">ErrorKind::TargetDead</span>, |
| <span class="kw">_</span> <span class="op">=</span><span class="op">></span> <span class="ident">ErrorKind::Unknown</span>, |
| } |
| } |
| |
| <span class="doccomment">/// Returns raw code of this error.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">raw_code</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">u32</span> { |
| <span class="self">self</span>.<span class="ident">code</span> |
| } |
| |
| <span class="doccomment">/// Returns corresponding error message of this error.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">message</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">str</span> { |
| <span class="self">self</span>.<span class="ident">kind</span>().<span class="ident">as_str</span>() |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">fmt::Debug</span> <span class="kw">for</span> <span class="ident">Error</span> { |
| <span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">fmt</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">fmt::Formatter</span>) <span class="op">-</span><span class="op">></span> <span class="ident">fmt::Result</span> { |
| <span class="macro">write!</span>(<span class="ident">fmt</span>, <span class="string">"{} (error code 0x{:x})"</span>, <span class="self">self</span>.<span class="ident">message</span>(), <span class="self">self</span>.<span class="ident">code</span>) |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">fmt::Display</span> <span class="kw">for</span> <span class="ident">Error</span> { |
| <span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">fmt</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">fmt::Formatter</span>) <span class="op">-</span><span class="op">></span> <span class="ident">fmt::Result</span> { |
| <span class="macro">write!</span>(<span class="ident">fmt</span>, <span class="string">"{} (error code 0x{:x})"</span>, <span class="self">self</span>.<span class="ident">message</span>(), <span class="self">self</span>.<span class="ident">code</span>) |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">std::error::Error</span> <span class="kw">for</span> <span class="ident">Error</span> { |
| <span class="kw">fn</span> <span class="ident">description</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">str</span> { |
| <span class="self">self</span>.<span class="ident">message</span>() |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">From</span><span class="op"><</span><span class="ident">ErrorKind</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Error</span> { |
| <span class="attribute">#[<span class="ident">inline</span>]</span> |
| <span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">kind</span>: <span class="ident">ErrorKind</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Error</span> { |
| <span class="ident">Error</span> { <span class="ident">code</span>: <span class="ident">kind</span> <span class="kw">as</span> <span class="ident">u32</span> } |
| } |
| } |
| </code></pre></div> |
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