rustix/backend/linux_raw/system/
syscalls.rs

1//! linux_raw syscalls supporting `rustix::system`.
2//!
3//! # Safety
4//!
5//! See the `rustix::backend` module documentation for details.
6#![allow(unsafe_code, clippy::undocumented_unsafe_blocks)]
7
8use super::types::RawUname;
9use crate::backend::c;
10use crate::backend::conv::{c_int, ret, ret_infallible, slice};
11use crate::fd::BorrowedFd;
12use crate::ffi::CStr;
13use crate::io;
14use crate::system::{RebootCommand, Sysinfo};
15use core::mem::MaybeUninit;
16
17#[inline]
18pub(crate) fn uname() -> RawUname {
19    let mut uname = MaybeUninit::<RawUname>::uninit();
20    unsafe {
21        ret_infallible(syscall!(__NR_uname, &mut uname));
22        uname.assume_init()
23    }
24}
25
26#[inline]
27pub(crate) fn sysinfo() -> Sysinfo {
28    let mut info = MaybeUninit::<Sysinfo>::uninit();
29    unsafe {
30        ret_infallible(syscall!(__NR_sysinfo, &mut info));
31        info.assume_init()
32    }
33}
34
35#[inline]
36pub(crate) fn sethostname(name: &[u8]) -> io::Result<()> {
37    let (ptr, len) = slice(name);
38    unsafe { ret(syscall_readonly!(__NR_sethostname, ptr, len)) }
39}
40
41#[inline]
42pub(crate) fn setdomainname(name: &[u8]) -> io::Result<()> {
43    let (ptr, len) = slice(name);
44    unsafe { ret(syscall_readonly!(__NR_setdomainname, ptr, len)) }
45}
46
47#[inline]
48pub(crate) fn reboot(cmd: RebootCommand) -> io::Result<()> {
49    unsafe {
50        ret(syscall_readonly!(
51            __NR_reboot,
52            c_int(c::LINUX_REBOOT_MAGIC1),
53            c_int(c::LINUX_REBOOT_MAGIC2),
54            c_int(cmd as i32)
55        ))
56    }
57}
58
59#[inline]
60pub(crate) fn init_module(image: &[u8], param_values: &CStr) -> io::Result<()> {
61    let (image, len) = slice(image);
62    unsafe {
63        ret(syscall_readonly!(
64            __NR_init_module,
65            image,
66            len,
67            param_values
68        ))
69    }
70}
71
72#[inline]
73pub(crate) fn finit_module(
74    fd: BorrowedFd<'_>,
75    param_values: &CStr,
76    flags: c::c_int,
77) -> io::Result<()> {
78    unsafe {
79        ret(syscall_readonly!(
80            __NR_finit_module,
81            fd,
82            param_values,
83            c_int(flags)
84        ))
85    }
86}
87
88#[inline]
89pub(crate) fn delete_module(name: &CStr, flags: c::c_int) -> io::Result<()> {
90    unsafe { ret(syscall_readonly!(__NR_delete_module, name, c_int(flags))) }
91}
rustix/backend/linux_raw/system/syscalls.rs

rustix/backend/linux_raw/system/
syscalls.rs
