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<!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="API documentation for the Rust `init_module` fn in crate `nix`."><meta name="keywords" content="rust, rustlang, rust-lang, init_module"><title>nix::kmod::init_module - Rust</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="../../dark.css"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><script src="../../storage.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="shortcut icon" href="../../favicon.ico"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc fn"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../../nix/index.html'><div class='logo-container'><img src='../../rust-logo.png' alt='logo'></div></a><div class="sidebar-elems"><p class='location'><a href='../index.html'>nix</a>::<wbr><a href='index.html'>kmod</a></p><script>window.sidebarCurrent = {name: 'init_module', ty: 'fn', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>−</span>]</a></span><a class='srclink' href='../../src/nix/kmod.rs.html#46-57' title='goto source code'>[src]</a></span><span class='in-band'>Function <a href='../index.html'>nix</a>::<wbr><a href='index.html'>kmod</a>::<wbr><a class="fn" href=''>init_module</a></span></h1><pre class='rust fn'>pub fn init_module(module_image: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>, param_values: &<a class="struct" href="https://doc.rust-lang.org/nightly/std/ffi/c_str/struct.CStr.html" title="struct std::ffi::c_str::CStr">CStr</a>) -> <a class="type" href="../../nix/type.Result.html" title="type nix::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></pre><div class='docblock'><p>Loads a kernel module from a buffer.</p>
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<p>It loads an ELF image into kernel space,
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performs any necessary symbol relocations,
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initializes module parameters to values provided by the caller,
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and then runs the module's init function.</p>
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<p>This function requires <code>CAP_SYS_MODULE</code> privilege.</p>
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<p>The <code>module_image</code> argument points to a buffer containing the binary image
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to be loaded. The buffer should contain a valid ELF image
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built for the running kernel.</p>
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<p>The <code>param_values</code> argument is a string containing space-delimited specifications
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of the values for module parameters.
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Each of the parameter specifications has the form:</p>
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<p><code>name[=value[,value...]]</code></p>
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<h1 id="example" class="section-header"><a href="#example">Example</a></h1>
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<div class="example-wrap"><pre class="rust rust-example-rendered">
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<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">fs</span>::<span class="ident">File</span>;
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<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">io</span>::<span class="ident">Read</span>;
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<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">ffi</span>::<span class="ident">CString</span>;
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<span class="kw">use</span> <span class="ident">nix</span>::<span class="ident">kmod</span>::<span class="ident">init_module</span>;
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<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">f</span> <span class="op">=</span> <span class="ident">File</span>::<span class="ident">open</span>(<span class="string">"mykernel.ko"</span>).<span class="ident">unwrap</span>();
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<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">contents</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">u8</span><span class="op">></span> <span class="op">=</span> <span class="ident">Vec</span>::<span class="ident">new</span>();
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<span class="ident">f</span>.<span class="ident">read_to_end</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">contents</span>).<span class="ident">unwrap</span>();
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<span class="ident">init_module</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">contents</span>, <span class="kw-2">&</span><span class="ident">CString</span>::<span class="ident">new</span>(<span class="string">"who=Rust when=Now,12"</span>).<span class="ident">unwrap</span>()).<span class="ident">unwrap</span>();</pre></div>
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<p>See <a href="http://man7.org/linux/man-pages/man2/init_module.2.html"><code>man init_module(2)</code></a> for more information.</p>
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