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更新libclamav库1.0.0版本

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2023-01-14 18:28:39 +08:00
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{"files":{"CHANGELOG.md":"b451593f0440f2bbc63cd2e98535614151e9ab12f877dd8bd9f60dd3ca2b9a36","Cargo.toml":"2b7510bf73cf20e993411333b2301574d72dd6d6ce3a1c558b5c458b12d8cd33","LICENSE-APACHE":"a9040321c3712d8fd0b09cf52b17445de04a23a10165049ae187cd39e5c86be5","LICENSE-MIT":"904801faf3f1850328af8e1aa1047b9190cc22ed40df5c87f2d93d17f847ef67","README.md":"c991281c8d1525279b90dffd452bd731116eebc456ee3a23b9c997df402e8bf7","src/aarch64.rs":"697e8048929cbee0248657da956e8cc627d59ee3fc96729068fec6e7b089b7b6","src/lib.rs":"5b2e7c89dab1d2bed08a4fe09aaf9c5f17ccaa8316d31d5af545b86e7d6a6947","src/miri.rs":"acf1a7e7ae31a1de07941084c6b589a2d4c6ea5f87012c811592c865d04c02cb","src/x86.rs":"380575e3383ece930fea661c6f54201b04c23e4753154dab96031290f398709b","tests/aarch64.rs":"bdabbe67316c128b57003ba5faa07707b5f339b1f3e984da4bc383cc93c2bedd","tests/x86.rs":"fcf476ca6ebd0845ab547cea4fe40c2ba2a2324c024264d9a86f666586f3a480"},"package":"28d997bd5e24a5928dd43e46dc529867e207907fe0b239c3477d924f7f2ca320"}

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# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## 0.2.5 (2022-09-04)
### Fixed
- Add workaround for [CPUID bug] in `std` ([#800])
[CPUID bug]: https://github.com/rust-lang/rust/issues/101346
[#800]: https://github.com/RustCrypto/utils/pull/800
## 0.2.4 (2022-08-22)
- Re-release v0.2.3 without any changes to fix [#795] ([#796])
[#795]: https://github.com/RustCrypto/utils/issues/795
[#796]: https://github.com/RustCrypto/utils/pull/796
## 0.2.3 (2022-08-18)
### Changed
- Update `libc` version to v0.2.95 ([#789])
- Disable all target features under MIRI ([#779])
- Check AVX availability when detecting AVX2 and FMA ([#792])
[#779]: https://github.com/RustCrypto/utils/pull/779
[#789]: https://github.com/RustCrypto/utils/pull/789
[#792]: https://github.com/RustCrypto/utils/pull/792
## 0.2.2 (2022-03-18)
### Added
- Support for Android on `aarch64` ([#752])
### Removed
- Vestigial code around `crypto` target feature ([#600])
[#600]: https://github.com/RustCrypto/utils/pull/600
[#752]: https://github.com/RustCrypto/utils/pull/752
## 0.2.1 (2021-08-26)
### Changed
- Revert [#583] "Use from_bytes_with_nul for string check" ([#597])
[#583]: https://github.com/RustCrypto/utils/pull/583
[#597]: https://github.com/RustCrypto/utils/pull/597
## 0.2.0 (2021-08-26) [YANKED]
### Removed
- AArch64 `crypto` target feature ([#594])
[#594]: https://github.com/RustCrypto/utils/pull/594
## 0.1.5 (2021-06-21)
### Added
- iOS support ([#435], [#501])
### Changed
- Map `aarch64` HWCAPs to target features; add `crypto` ([#456])
[#435]: https://github.com/RustCrypto/utils/pull/435
[#456]: https://github.com/RustCrypto/utils/pull/456
[#501]: https://github.com/RustCrypto/utils/pull/501
## 0.1.4 (2021-05-14)
### Added
- Support compiling on non-Linux/macOS aarch64 targets ([#408])
[#408]: https://github.com/RustCrypto/utils/pull/408
## 0.1.3 (2021-05-13)
### Removed
- `neon` on `aarch64` targets: already enabled by default ([#406])
[#406]: https://github.com/RustCrypto/utils/pull/406
## 0.1.2 (2021-05-13) [YANKED]
### Added
- `neon` feature detection on `aarch64` targets ([#403])
### Fixed
- Support for `musl`-based targets ([#403])
[#403]: https://github.com/RustCrypto/utils/pull/403
## 0.1.1 (2021-05-06)
### Added
- `aarch64` support for Linux and macOS/M4 targets ([#393])
[#393]: https://github.com/RustCrypto/utils/pull/393
## 0.1.0 (2021-04-29)
- Initial release

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# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies.
#
# If you are reading this file be aware that the original Cargo.toml
# will likely look very different (and much more reasonable).
# See Cargo.toml.orig for the original contents.
[package]
edition = "2018"
name = "cpufeatures"
version = "0.2.5"
authors = ["RustCrypto Developers"]
description = """
Lightweight runtime CPU feature detection for x86/x86_64 and aarch64 with
no_std support and support for mobile targets including Android and iOS
"""
documentation = "https://docs.rs/cpufeatures"
readme = "README.md"
keywords = [
"cpuid",
"target-feature",
]
categories = ["no-std"]
license = "MIT OR Apache-2.0"
repository = "https://github.com/RustCrypto/utils"
[target.aarch64-apple-darwin.dependencies.libc]
version = "0.2.95"
[target.aarch64-linux-android.dependencies.libc]
version = "0.2.95"
[target."cfg(all(target_arch = \"aarch64\", target_os = \"linux\"))".dependencies.libc]
version = "0.2.95"

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Copyright (c) 2020 The RustCrypto Project Developers
Permission is hereby granted, free of charge, to any
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DEALINGS IN THE SOFTWARE.

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# [RustCrypto]: CPU Feature Detection
[![crate][crate-image]][crate-link]
[![Docs][docs-image]][docs-link]
![Apache2/MIT licensed][license-image]
![Rust Version][rustc-image]
[![Project Chat][chat-image]][chat-link]
[![Build Status][build-image]][build-link]
Lightweight and efficient runtime CPU feature detection for `aarch64` and
`x86`/`x86_64` targets.
Supports `no_std` as well as mobile targets including iOS and Android,
providing an alternative to the `std`-dependent `is_x86_feature_detected!`
macro.
[Documentation][docs-link]
## Supported architectures
### `aarch64`: Android, iOS, Linux, and macOS/M4 only
Note: ARM64 does not support OS-independent feature detection, so support must
be implemented on an OS-by-OS basis.
Target features:
- `aes`
- `sha2`
- `sha3`
Note: please open a GitHub Issue to request support for additional features.
### `x86`/`x86_64`: OS independent and `no_std`-friendly
Target features:
- `adx`
- `aes`
- `avx`
- `avx2`
- `bmi1`
- `bmi2`
- `fma`
- `mmx`
- `pclmulqdq`
- `popcnt`
- `rdrand`
- `rdseed`
- `sgx`
- `sha`
- `sse`
- `sse2`
- `sse3`
- `sse4.1`
- `sse4.2`
- `ssse3`
## License
Licensed under either of:
* [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0)
* [MIT license](http://opensource.org/licenses/MIT)
at your option.
### Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
dual licensed as above, without any additional terms or conditions.
[//]: # (badges)
[crate-image]: https://img.shields.io/crates/v/cpufeatures.svg
[crate-link]: https://crates.io/crates/cpufeatures
[docs-image]: https://docs.rs/cpufeatures/badge.svg
[docs-link]: https://docs.rs/cpufeatures/
[license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
[rustc-image]: https://img.shields.io/badge/rustc-1.40+-blue.svg
[chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
[chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260052-utils
[build-image]: https://github.com/RustCrypto/utils/workflows/cpufeatures/badge.svg?branch=master&event=push
[build-link]: https://github.com/RustCrypto/utils/actions/workflows/cpufeatures.yml
[//]: # (general links)
[RustCrypto]: https://github.com/rustcrypto
[RustCrypto/utils#378]: https://github.com/RustCrypto/utils/issues/378

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//! ARM64 CPU feature detection support.
//!
//! Unfortunately ARM instructions to detect CPU features cannot be called from
//! unprivileged userspace code, so this implementation relies on OS-specific
//! APIs for feature detection.
// Evaluate the given `$body` expression any of the supplied target features
// are not enabled. Otherwise returns true.
#[macro_export]
#[doc(hidden)]
macro_rules! __unless_target_features {
($($tf:tt),+ => $body:expr ) => {
{
#[cfg(not(all($(target_feature=$tf,)*)))]
$body
#[cfg(all($(target_feature=$tf,)*))]
true
}
};
}
// Linux runtime detection of target CPU features using `getauxval`.
#[cfg(any(target_os = "linux", target_os = "android"))]
#[macro_export]
#[doc(hidden)]
macro_rules! __detect_target_features {
($($tf:tt),+) => {{
let hwcaps = $crate::aarch64::getauxval_hwcap();
$($crate::check!(hwcaps, $tf) & )+ true
}};
}
/// Linux helper function for calling `getauxval` to get `AT_HWCAP`.
#[cfg(any(target_os = "linux", target_os = "android"))]
pub fn getauxval_hwcap() -> u64 {
unsafe { libc::getauxval(libc::AT_HWCAP) }
}
// MacOS runtime detection of target CPU features using `sysctlbyname`.
#[cfg(target_os = "macos")]
#[macro_export]
#[doc(hidden)]
macro_rules! __detect_target_features {
($($tf:tt),+) => {{
$($crate::check!($tf) & )+ true
}};
}
// Linux `expand_check_macro`
#[cfg(any(target_os = "linux", target_os = "android"))]
macro_rules! __expand_check_macro {
($(($name:tt, $hwcap:ident)),* $(,)?) => {
#[macro_export]
#[doc(hidden)]
macro_rules! check {
$(
($hwcaps:expr, $name) => {
(($hwcaps & $crate::aarch64::hwcaps::$hwcap) != 0)
};
)*
}
};
}
// Linux `expand_check_macro`
#[cfg(any(target_os = "linux", target_os = "android"))]
__expand_check_macro! {
("aes", AES), // Enable AES support.
("sha2", SHA2), // Enable SHA1 and SHA256 support.
("sha3", SHA3), // Enable SHA512 and SHA3 support.
}
/// Linux hardware capabilities mapped to target features.
///
/// Note that LLVM target features are coarser grained than what Linux supports
/// and imply more capabilities under each feature. This module attempts to
/// provide that mapping accordingly.
///
/// See this issue for more info: <https://github.com/RustCrypto/utils/issues/395>
#[cfg(any(target_os = "linux", target_os = "android"))]
pub mod hwcaps {
use libc::c_ulong;
pub const AES: c_ulong = libc::HWCAP_AES | libc::HWCAP_PMULL;
pub const SHA2: c_ulong = libc::HWCAP_SHA2;
pub const SHA3: c_ulong = libc::HWCAP_SHA3 | libc::HWCAP_SHA512;
}
// macOS `check!` macro.
//
// NOTE: several of these instructions (e.g. `aes`, `sha2`) can be assumed to
// be present on all Apple ARM64 hardware.
//
// Newer CPU instructions now have nodes within sysctl's `hw.optional`
// namespace, however the ones that do not can safely be assumed to be
// present on all Apple ARM64 devices, now and for the foreseeable future.
//
// See discussion on this issue for more information:
// <https://github.com/RustCrypto/utils/issues/378>
#[cfg(target_os = "macos")]
#[macro_export]
#[doc(hidden)]
macro_rules! check {
("aes") => {
true
};
("sha2") => {
true
};
("sha3") => {
unsafe {
// `sha3` target feature implies SHA-512 as well
$crate::aarch64::sysctlbyname(b"hw.optional.armv8_2_sha512\0")
&& $crate::aarch64::sysctlbyname(b"hw.optional.armv8_2_sha3\0")
}
};
}
/// macOS helper function for calling `sysctlbyname`.
#[cfg(target_os = "macos")]
pub unsafe fn sysctlbyname(name: &[u8]) -> bool {
assert_eq!(
name.last().cloned(),
Some(0),
"name is not NUL terminated: {:?}",
name
);
let mut value: u32 = 0;
let mut size = core::mem::size_of::<u32>();
let rc = libc::sysctlbyname(
name.as_ptr() as *const i8,
&mut value as *mut _ as *mut libc::c_void,
&mut size,
core::ptr::null_mut(),
0,
);
assert_eq!(size, 4, "unexpected sysctlbyname(3) result size");
assert_eq!(rc, 0, "sysctlbyname returned error code: {}", rc);
value != 0
}
// iOS `check!` macro.
//
// Unfortunately iOS does not provide access to the `sysctl(3)` API which means
// we can only return static values for CPU features which can be assumed to
// be present on all Apple ARM64 hardware.
//
// See discussion on this issue for more information:
// <https://github.com/RustCrypto/utils/issues/378>
#[cfg(target_os = "ios")]
#[macro_export]
#[doc(hidden)]
macro_rules! check {
("aes") => {
true
};
("sha2") => {
true
};
("sha3") => {
false
};
}
// On other targets, runtime CPU feature detection is unavailable
#[cfg(not(any(
target_os = "ios",
target_os = "linux",
target_os = "android",
target_os = "macos"
)))]
#[macro_export]
#[doc(hidden)]
macro_rules! __detect_target_features {
($($tf:tt),+) => {
false
};
}

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//! This crate provides macros for runtime CPU feature detection. It's intended
//! as a stopgap until Rust [RFC 2725] adding first-class target feature detection
//! macros to `libcore` is implemented.
//!
//! Supported target architectures:
//! - `aarch64`: Linux and macOS/M4 only (ARM64 does not support OS-independent feature detection)
//! - Target features: `aes`, `sha2`, `sha3`
//! - `x86`/`x86_64`: OS independent and `no_std`-friendly
//! - Target features: `adx`, `aes`, `avx`, `avx2`, `bmi1`, `bmi2`, `fma`,
//! `mmx`, `pclmulqdq`, `popcnt`, `rdrand`, `rdseed`, `sgx`, `sha`, `sse`,
//! `sse2`, `sse3`, `sse4.1`, `sse4.2`, `ssse3`
//!
//! If you would like detection support for a target feature which is not on
//! this list, please [open a GitHub issue][gh].
//!
//! # Example
//! ```
//! # #[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
//! # {
//! // This macro creates `cpuid_aes_sha` module
//! cpufeatures::new!(cpuid_aes_sha, "aes", "sha");
//!
//! // `token` is a Zero Sized Type (ZST) value, which guarantees
//! // that underlying static storage got properly initialized,
//! // which allows to omit initialization branch
//! let token: cpuid_aes_sha::InitToken = cpuid_aes_sha::init();
//!
//! if token.get() {
//! println!("CPU supports both SHA and AES extensions");
//! } else {
//! println!("SHA and AES extensions are not supported");
//! }
//!
//! // If stored value needed only once you can get stored value
//! // omitting the token
//! let val = cpuid_aes_sha::get();
//! assert_eq!(val, token.get());
//!
//! // Additionally you can get both token and value
//! let (token, val) = cpuid_aes_sha::init_get();
//! assert_eq!(val, token.get());
//! # }
//! ```
//!
//! Note that if all tested target features are enabled via compiler options
//! (e.g. by using `RUSTFLAGS`), the `get` method will always return `true`
//! and `init` will not use CPUID instruction. Such behavior allows
//! compiler to completely eliminate fallback code.
//!
//! After first call macro caches result and returns it in subsequent
//! calls, thus runtime overhead for them is minimal.
//!
//! [RFC 2725]: https://github.com/rust-lang/rfcs/pull/2725
//! [gh]: https://github.com/RustCrypto/utils/issues/new?title=cpufeatures:%20requesting%20support%20for%20CHANGEME%20target%20feature
#![no_std]
#![doc(
html_logo_url = "https://raw.githubusercontent.com/RustCrypto/media/6ee8e381/logo.svg",
html_favicon_url = "https://raw.githubusercontent.com/RustCrypto/media/6ee8e381/logo.svg"
)]
#[cfg(not(miri))]
#[cfg(all(target_arch = "aarch64"))]
#[doc(hidden)]
pub mod aarch64;
#[cfg(not(miri))]
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
mod x86;
#[cfg(miri)]
mod miri;
#[cfg(not(any(target_arch = "aarch64", target_arch = "x86", target_arch = "x86_64")))]
compile_error!("This crate works only on `aarch64`, `x86`, and `x86-64` targets.");
/// Create module with CPU feature detection code.
#[macro_export]
macro_rules! new {
($mod_name:ident, $($tf:tt),+ $(,)?) => {
mod $mod_name {
use core::sync::atomic::{AtomicU8, Ordering::Relaxed};
const UNINIT: u8 = u8::max_value();
static STORAGE: AtomicU8 = AtomicU8::new(UNINIT);
/// Initialization token
#[derive(Copy, Clone, Debug)]
pub struct InitToken(());
impl InitToken {
/// Get initialized value
#[inline(always)]
pub fn get(&self) -> bool {
$crate::__unless_target_features! {
$($tf),+ => {
STORAGE.load(Relaxed) == 1
}
}
}
}
/// Initialize underlying storage if needed and get
/// stored value and initialization token.
#[inline]
pub fn init_get() -> (InitToken, bool) {
let res = $crate::__unless_target_features! {
$($tf),+ => {
// Relaxed ordering is fine, as we only have a single atomic variable.
let val = STORAGE.load(Relaxed);
if val == UNINIT {
let res = $crate::__detect_target_features!($($tf),+);
STORAGE.store(res as u8, Relaxed);
res
} else {
val == 1
}
}
};
(InitToken(()), res)
}
/// Initialize underlying storage if needed and get
/// initialization token.
#[inline]
pub fn init() -> InitToken {
init_get().0
}
/// Initialize underlying storage if needed and get
/// stored value.
#[inline]
pub fn get() -> bool {
init_get().1
}
}
};
}

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//! Minimal miri support.
//!
//! Miri is an interpreter, and though it tries to emulate the target CPU
//! it does not support any target features.
#[macro_export]
#[doc(hidden)]
macro_rules! __unless_target_features {
($($tf:tt),+ => $body:expr ) => {
false
};
}
#[macro_export]
#[doc(hidden)]
macro_rules! __detect_target_features {
($($tf:tt),+) => {
false
};
}

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//! x86/x86-64 CPU feature detection support.
//!
//! Portable, `no_std`-friendly implementation that relies on the x86 `CPUID`
//! instruction for feature detection.
// Evaluate the given `$body` expression any of the supplied target features
// are not enabled. Otherwise returns true.
//
// The `$body` expression is not evaluated on SGX targets, and returns false
// on these targets unless *all* supplied target features are enabled.
#[macro_export]
#[doc(hidden)]
macro_rules! __unless_target_features {
($($tf:tt),+ => $body:expr ) => {{
#[cfg(not(all($(target_feature=$tf,)*)))]
{
#[cfg(not(target_env = "sgx"))]
$body
// CPUID is not available on SGX targets
#[cfg(target_env = "sgx")]
false
}
#[cfg(all($(target_feature=$tf,)*))]
true
}};
}
// Use CPUID to detect the presence of all supplied target features.
#[macro_export]
#[doc(hidden)]
macro_rules! __detect_target_features {
($($tf:tt),+) => {{
#[cfg(target_arch = "x86")]
use core::arch::x86::{__cpuid, __cpuid_count, CpuidResult};
#[cfg(target_arch = "x86_64")]
use core::arch::x86_64::{__cpuid, __cpuid_count, CpuidResult};
// These wrappers are workarounds around
// https://github.com/rust-lang/rust/issues/101346
//
// DO NOT remove it until MSRV is bumped to a version
// with the issue fix (at least 1.64).
#[inline(never)]
unsafe fn cpuid(leaf: u32) -> CpuidResult {
__cpuid(leaf)
}
#[inline(never)]
unsafe fn cpuid_count(leaf: u32, sub_leaf: u32) -> CpuidResult {
__cpuid_count(leaf, sub_leaf)
}
let cr = unsafe {
[cpuid(1), cpuid_count(7, 0)]
};
$($crate::check!(cr, $tf) & )+ true
}};
}
macro_rules! __expand_check_macro {
($(($name:tt $(, $i:expr, $reg:ident, $offset:expr)*)),* $(,)?) => {
#[macro_export]
#[doc(hidden)]
macro_rules! check {
$(
($cr:expr, $name) => {
true
$(
& ($cr[$i].$reg & (1 << $offset) != 0)
)*
};
)*
}
};
}
// Note that according to the [Intel manual][0] AVX2 and FMA require
// that we check availability of AVX before using them.
//
// [0]: https://www.intel.com/content/dam/develop/external/us/en/documents/36945
__expand_check_macro! {
("mmx", 0, edx, 23),
("sse", 0, edx, 25),
("sse2", 0, edx, 26),
("sse3", 0, ecx, 0),
("pclmulqdq", 0, ecx, 1),
("ssse3", 0, ecx, 9),
("fma", 0, ecx, 28, 0, ecx, 12),
("sse4.1", 0, ecx, 19),
("sse4.2", 0, ecx, 20),
("popcnt", 0, ecx, 23),
("aes", 0, ecx, 25),
("avx", 0, ecx, 28),
("rdrand", 0, ecx, 30),
("sgx", 1, ebx, 2),
("bmi1", 1, ebx, 3),
("avx2", 0, ecx, 28, 1, ebx, 5),
("bmi2", 1, ebx, 8),
("rdseed", 1, ebx, 18),
("adx", 1, ebx, 19),
("sha", 1, ebx, 29),
}

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//! ARM64 tests
#![cfg(target_arch = "aarch64")]
cpufeatures::new!(armcaps, "aes", "sha2", "sha3");
#[test]
fn init() {
let token: armcaps::InitToken = armcaps::init();
assert_eq!(token.get(), armcaps::get());
}
#[test]
fn init_get() {
let (token, val) = armcaps::init_get();
assert_eq!(val, token.get());
}

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//! x86/x86_64 tests
#![cfg(any(target_arch = "x86", target_arch = "x86_64"))]
cpufeatures::new!(cpuid, "aes", "sha");
#[test]
fn init() {
let token: cpuid::InitToken = cpuid::init();
assert_eq!(token.get(), cpuid::get());
}
#[test]
fn init_get() {
let (token, val) = cpuid::init_get();
assert_eq!(val, token.get());
}