| <!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_libc/src/linux/ocall/fd.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>fd.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_libc/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_libc/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><span class="kw">crate</span>::linux::<span class="kw-2">*</span>; |
| <span class="kw">use </span>alloc::vec::Vec; |
| <span class="kw">use </span>core::mem; |
| <span class="kw">use </span>core::slice; |
| <span class="kw">use </span>sgx_oc::linux::ocall; |
| <span class="kw">use </span>sgx_trts::trts::is_within_enclave; |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>read(fd: c_int, buf: <span class="kw-2">*mut </span>c_void, count: size_t) -> ssize_t { |
| <span class="kw">if </span>buf.is_null() { |
| set_errno(EINVAL); |
| <span class="kw">return </span>-<span class="number">1</span>; |
| } |
| |
| <span class="kw">let </span>buf = slice::from_raw_parts_mut(buf <span class="kw">as </span><span class="kw-2">*mut </span>u8, count); |
| <span class="kw">if let </span><span class="prelude-val">Ok</span>(rsize) = ocall::read(fd, buf) { |
| rsize <span class="kw">as </span>ssize_t |
| } <span class="kw">else </span>{ |
| -<span class="number">1 |
| </span>} |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pread64( |
| fd: c_int, |
| buf: <span class="kw-2">*mut </span>c_void, |
| count: size_t, |
| offset: off64_t, |
| ) -> ssize_t { |
| <span class="kw">if </span>buf.is_null() { |
| set_errno(EINVAL); |
| <span class="kw">return </span>-<span class="number">1</span>; |
| } |
| |
| <span class="kw">let </span>buf = slice::from_raw_parts_mut(buf <span class="kw">as </span><span class="kw-2">*mut </span>u8, count); |
| <span class="kw">if let </span><span class="prelude-val">Ok</span>(rsize) = ocall::pread64(fd, buf, offset) { |
| rsize <span class="kw">as </span>ssize_t |
| } <span class="kw">else </span>{ |
| -<span class="number">1 |
| </span>} |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>readv(fd: c_int, iov: <span class="kw-2">*const </span>iovec, iovcnt: c_int) -> ssize_t { |
| <span class="kw">if </span>iov.is_null() |
| || iovcnt < <span class="number">0 |
| </span>|| !is_within_enclave(iov <span class="kw">as </span><span class="kw-2">*const </span>u8, iovcnt <span class="kw">as </span>usize * mem::size_of::<iovec>()) |
| { |
| set_errno(EINVAL); |
| <span class="kw">return </span>-<span class="number">1</span>; |
| } |
| |
| <span class="kw">let </span>iov = slice::from_raw_parts(iov, iovcnt <span class="kw">as </span>usize); |
| <span class="kw">let </span><span class="kw-2">mut </span>iovec: Vec<<span class="kw-2">&mut </span>[u8]> = Vec::with_capacity(iovcnt <span class="kw">as </span>usize); |
| <span class="kw">for </span>v <span class="kw">in </span>iov { |
| <span class="kw">if </span>v.iov_base.is_null() { |
| set_errno(EINVAL); |
| <span class="kw">return </span>-<span class="number">1</span>; |
| } |
| iovec.push(slice::from_raw_parts_mut(v.iov_base <span class="kw">as </span><span class="kw-2">*mut </span>u8, v.iov_len)); |
| } |
| |
| <span class="kw">if let </span><span class="prelude-val">Ok</span>(rsize) = ocall::readv(fd, iovec) { |
| rsize <span class="kw">as </span>ssize_t |
| } <span class="kw">else </span>{ |
| -<span class="number">1 |
| </span>} |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>preadv64( |
| fd: c_int, |
| iov: <span class="kw-2">*const </span>iovec, |
| iovcnt: c_int, |
| offset: off64_t, |
| ) -> ssize_t { |
| <span class="kw">if </span>iov.is_null() |
| || iovcnt < <span class="number">0 |
| </span>|| !is_within_enclave(iov <span class="kw">as </span><span class="kw-2">*const </span>u8, iovcnt <span class="kw">as </span>usize * mem::size_of::<iovec>()) |
| { |
| set_errno(EINVAL); |
| <span class="kw">return </span>-<span class="number">1</span>; |
| } |
| |
| <span class="kw">let </span>iov = slice::from_raw_parts(iov, iovcnt <span class="kw">as </span>usize); |
| <span class="kw">let </span><span class="kw-2">mut </span>iovec: Vec<<span class="kw-2">&mut </span>[u8]> = Vec::with_capacity(iovcnt <span class="kw">as </span>usize); |
| <span class="kw">for </span>v <span class="kw">in </span>iov { |
| <span class="kw">if </span>v.iov_base.is_null() { |
| set_errno(EINVAL); |
| <span class="kw">return </span>-<span class="number">1</span>; |
| } |
| iovec.push(slice::from_raw_parts_mut(v.iov_base <span class="kw">as </span><span class="kw-2">*mut </span>u8, v.iov_len)); |
| } |
| |
| <span class="kw">if let </span><span class="prelude-val">Ok</span>(rsize) = ocall::preadv64(fd, iovec, offset) { |
| rsize <span class="kw">as </span>ssize_t |
| } <span class="kw">else </span>{ |
| -<span class="number">1 |
| </span>} |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>write(fd: c_int, buf: <span class="kw-2">*const </span>c_void, count: size_t) -> ssize_t { |
| <span class="kw">if </span>buf.is_null() { |
| set_errno(EINVAL); |
| <span class="kw">return </span>-<span class="number">1</span>; |
| } |
| |
| <span class="kw">let </span>buf = slice::from_raw_parts(buf <span class="kw">as </span><span class="kw-2">*const </span>u8, count); |
| <span class="kw">if let </span><span class="prelude-val">Ok</span>(rsize) = ocall::write(fd, buf) { |
| rsize <span class="kw">as </span>ssize_t |
| } <span class="kw">else </span>{ |
| -<span class="number">1 |
| </span>} |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pwrite64( |
| fd: c_int, |
| buf: <span class="kw-2">*const </span>c_void, |
| count: size_t, |
| offset: off64_t, |
| ) -> ssize_t { |
| <span class="kw">if </span>buf.is_null() { |
| set_errno(EINVAL); |
| <span class="kw">return </span>-<span class="number">1</span>; |
| } |
| |
| <span class="kw">let </span>buf = slice::from_raw_parts(buf <span class="kw">as </span><span class="kw-2">*const </span>u8, count); |
| <span class="kw">if let </span><span class="prelude-val">Ok</span>(rsize) = ocall::pwrite64(fd, buf, offset) { |
| rsize <span class="kw">as </span>ssize_t |
| } <span class="kw">else </span>{ |
| -<span class="number">1 |
| </span>} |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>writev(fd: c_int, iov: <span class="kw-2">*const </span>iovec, iovcnt: c_int) -> ssize_t { |
| <span class="kw">if </span>iov.is_null() |
| || iovcnt < <span class="number">0 |
| </span>|| !is_within_enclave(iov <span class="kw">as </span><span class="kw-2">*const </span>u8, iovcnt <span class="kw">as </span>usize * mem::size_of::<iovec>()) |
| { |
| set_errno(EINVAL); |
| <span class="kw">return </span>-<span class="number">1</span>; |
| } |
| |
| <span class="kw">let </span>iov = slice::from_raw_parts(iov, iovcnt <span class="kw">as </span>usize); |
| <span class="kw">let </span><span class="kw-2">mut </span>iovec: Vec<<span class="kw-2">&</span>[u8]> = Vec::with_capacity(iovcnt <span class="kw">as </span>usize); |
| <span class="kw">for </span>v <span class="kw">in </span>iov { |
| <span class="kw">if </span>v.iov_base.is_null() { |
| set_errno(EINVAL); |
| <span class="kw">return </span>-<span class="number">1</span>; |
| } |
| iovec.push(slice::from_raw_parts(v.iov_base <span class="kw">as </span><span class="kw-2">*const </span>u8, v.iov_len)); |
| } |
| |
| <span class="kw">if let </span><span class="prelude-val">Ok</span>(rsize) = ocall::writev(fd, iovec) { |
| rsize <span class="kw">as </span>ssize_t |
| } <span class="kw">else </span>{ |
| -<span class="number">1 |
| </span>} |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pwritev64( |
| fd: c_int, |
| iov: <span class="kw-2">*const </span>iovec, |
| iovcnt: c_int, |
| offset: off64_t, |
| ) -> ssize_t { |
| <span class="kw">if </span>iov.is_null() |
| || iovcnt < <span class="number">0 |
| </span>|| !is_within_enclave(iov <span class="kw">as </span><span class="kw-2">*const </span>u8, iovcnt <span class="kw">as </span>usize * mem::size_of::<iovec>()) |
| { |
| set_errno(EINVAL); |
| <span class="kw">return </span>-<span class="number">1</span>; |
| } |
| |
| <span class="kw">let </span>iov = slice::from_raw_parts(iov, iovcnt <span class="kw">as </span>usize); |
| <span class="kw">let </span><span class="kw-2">mut </span>iovec: Vec<<span class="kw-2">&</span>[u8]> = Vec::with_capacity(iovcnt <span class="kw">as </span>usize); |
| <span class="kw">for </span>v <span class="kw">in </span>iov { |
| <span class="kw">if </span>v.iov_base.is_null() { |
| set_errno(EINVAL); |
| <span class="kw">return </span>-<span class="number">1</span>; |
| } |
| iovec.push(slice::from_raw_parts(v.iov_base <span class="kw">as </span><span class="kw-2">*const </span>u8, v.iov_len)); |
| } |
| |
| <span class="kw">if let </span><span class="prelude-val">Ok</span>(rsize) = ocall::pwritev64(fd, iovec, offset) { |
| rsize <span class="kw">as </span>ssize_t |
| } <span class="kw">else </span>{ |
| -<span class="number">1 |
| </span>} |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>sendfile( |
| out_fd: c_int, |
| in_fd: c_int, |
| offset: <span class="kw-2">*mut </span>off_t, |
| count: size_t, |
| ) -> ssize_t { |
| <span class="kw">let </span>offset = <span class="kw">if </span>!offset.is_null() { |
| <span class="prelude-val">Some</span>(<span class="kw-2">&mut *</span>offset) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">None |
| </span>}; |
| |
| <span class="kw">if let </span><span class="prelude-val">Ok</span>(rsize) = ocall::sendfile(out_fd, in_fd, offset, count) { |
| rsize <span class="kw">as </span>ssize_t |
| } <span class="kw">else </span>{ |
| -<span class="number">1 |
| </span>} |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>copy_file_range( |
| fd_in: c_int, |
| off_in: <span class="kw-2">*mut </span>off64_t, |
| fd_out: c_int, |
| off_out: <span class="kw-2">*mut </span>off64_t, |
| len: size_t, |
| flags: c_uint, |
| ) -> ssize_t { |
| <span class="kw">let </span>off_in = <span class="kw">if </span>!off_in.is_null() { |
| <span class="prelude-val">Some</span>(<span class="kw-2">&mut *</span>off_in) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">None |
| </span>}; |
| |
| <span class="kw">let </span>off_out = <span class="kw">if </span>!off_out.is_null() { |
| <span class="prelude-val">Some</span>(<span class="kw-2">&mut *</span>off_out) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">None |
| </span>}; |
| |
| <span class="kw">if let </span><span class="prelude-val">Ok</span>(rsize) = ocall::copy_file_range(fd_in, off_in, fd_out, off_out, len, flags) { |
| rsize <span class="kw">as </span>ssize_t |
| } <span class="kw">else </span>{ |
| -<span class="number">1 |
| </span>} |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>splice( |
| fd_in: c_int, |
| off_in: <span class="kw-2">*mut </span>off64_t, |
| fd_out: c_int, |
| off_out: <span class="kw-2">*mut </span>off64_t, |
| len: size_t, |
| flags: c_uint, |
| ) -> ssize_t { |
| <span class="kw">let </span>off_in = <span class="kw">if </span>!off_in.is_null() { |
| <span class="prelude-val">Some</span>(<span class="kw-2">&mut *</span>off_in) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">None |
| </span>}; |
| |
| <span class="kw">let </span>off_out = <span class="kw">if </span>!off_out.is_null() { |
| <span class="prelude-val">Some</span>(<span class="kw-2">&mut *</span>off_out) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">None |
| </span>}; |
| |
| <span class="kw">if let </span><span class="prelude-val">Ok</span>(rsize) = ocall::splice(fd_in, off_in, fd_out, off_out, len, flags) { |
| rsize <span class="kw">as </span>ssize_t |
| } <span class="kw">else </span>{ |
| -<span class="number">1 |
| </span>} |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>fcntl(fd: c_int, cmd: c_int, arg: c_long) -> c_int { |
| <span class="kw">if let </span><span class="prelude-val">Ok</span>(ret) = ocall::fcntl(fd, cmd, arg) { |
| ret |
| } <span class="kw">else </span>{ |
| -<span class="number">1 |
| </span>} |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>fcntl_arg0(fd: c_int, cmd: c_int) -> c_int { |
| <span class="kw">if let </span><span class="prelude-val">Ok</span>(ret) = ocall::fcntl_arg0(fd, cmd) { |
| ret |
| } <span class="kw">else </span>{ |
| -<span class="number">1 |
| </span>} |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>fcntl_arg1(fd: c_int, cmd: c_int, arg: c_int) -> c_int { |
| <span class="kw">if let </span><span class="prelude-val">Ok</span>(ret) = ocall::fcntl_arg1(fd, cmd, arg) { |
| ret |
| } <span class="kw">else </span>{ |
| -<span class="number">1 |
| </span>} |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>ioctl_arg0(fd: c_int, request: c_ulong) -> c_int { |
| <span class="kw">if </span>ocall::ioctl_arg0(fd, request).is_ok() { |
| <span class="number">0 |
| </span>} <span class="kw">else </span>{ |
| -<span class="number">1 |
| </span>} |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>ioctl_arg1(fd: c_int, request: c_ulong, arg: <span class="kw-2">*mut </span>c_int) -> c_int { |
| <span class="kw">if </span>arg.is_null() { |
| set_errno(EINVAL); |
| <span class="kw">return </span>-<span class="number">1</span>; |
| } |
| |
| <span class="kw">if </span>ocall::ioctl_arg1(fd, request, <span class="kw-2">&mut *</span>arg).is_ok() { |
| <span class="number">0 |
| </span>} <span class="kw">else </span>{ |
| -<span class="number">1 |
| </span>} |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>close(fd: c_int) -> c_int { |
| <span class="kw">if </span>ocall::close(fd).is_ok() { |
| <span class="number">0 |
| </span>} <span class="kw">else </span>{ |
| -<span class="number">1 |
| </span>} |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>isatty(fd: c_int) -> c_int { |
| i32::from(ocall::isatty(fd).is_ok()) |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>dup(oldfd: c_int) -> c_int { |
| <span class="kw">if let </span><span class="prelude-val">Ok</span>(fd) = ocall::dup(oldfd) { |
| fd |
| } <span class="kw">else </span>{ |
| -<span class="number">1 |
| </span>} |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>eventfd(initval: c_uint, flags: c_int) -> c_int { |
| <span class="kw">if let </span><span class="prelude-val">Ok</span>(fd) = ocall::eventfd(initval, flags) { |
| fd |
| } <span class="kw">else </span>{ |
| -<span class="number">1 |
| </span>} |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>futimens(fd: c_int, times: <span class="kw-2">*const </span>[timespec; <span class="number">2</span>]) -> c_int { |
| <span class="kw">if </span>times.is_null() { |
| set_errno(EINVAL); |
| <span class="kw">return </span>-<span class="number">1</span>; |
| } |
| |
| <span class="kw">if </span>ocall::futimens(fd, <span class="kw-2">&*</span>times).is_ok() { |
| <span class="number">0 |
| </span>} <span class="kw">else </span>{ |
| -<span class="number">1 |
| </span>} |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../../" data-current-crate="sgx_libc" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |