Revision control
Copy as Markdown
Other Tools
//! linux_raw syscalls supporting `rustix::system`.
//!
//! # Safety
//!
//! See the `rustix::backend` module documentation for details.
#![allow(unsafe_code, clippy::undocumented_unsafe_blocks)]
use super::types::RawUname;
use crate::backend::c;
use crate::backend::conv::{c_int, ret, ret_infallible, slice};
#[cfg(any(target_os = "linux", target_os = "android"))]
use crate::fd::BorrowedFd;
use crate::ffi::CStr;
use crate::io;
use crate::system::{RebootCommand, Sysinfo};
use core::mem::MaybeUninit;
#[inline]
pub(crate) fn uname() -> RawUname {
let mut uname = MaybeUninit::<RawUname>::uninit();
unsafe {
ret_infallible(syscall!(__NR_uname, &mut uname));
uname.assume_init()
}
}
#[inline]
pub(crate) fn sysinfo() -> Sysinfo {
let mut info = MaybeUninit::<Sysinfo>::uninit();
unsafe {
ret_infallible(syscall!(__NR_sysinfo, &mut info));
info.assume_init()
}
}
#[inline]
pub(crate) fn sethostname(name: &[u8]) -> io::Result<()> {
let (ptr, len) = slice(name);
unsafe { ret(syscall_readonly!(__NR_sethostname, ptr, len)) }
}
#[inline]
pub(crate) fn reboot(cmd: RebootCommand) -> io::Result<()> {
unsafe {
ret(syscall_readonly!(
__NR_reboot,
c_int(c::LINUX_REBOOT_MAGIC1),
c_int(c::LINUX_REBOOT_MAGIC2),
c_int(cmd as i32)
))
}
}
#[inline]
pub(crate) fn init_module(image: &[u8], param_values: &CStr) -> io::Result<()> {
let (image, len) = slice(image);
unsafe {
ret(syscall_readonly!(
__NR_init_module,
image,
len,
param_values
))
}
}
#[inline]
pub(crate) fn finit_module(
fd: BorrowedFd<'_>,
param_values: &CStr,
flags: c::c_int,
) -> io::Result<()> {
unsafe {
ret(syscall_readonly!(
__NR_finit_module,
fd,
param_values,
c_int(flags)
))
}
}
#[inline]
pub(crate) fn delete_module(name: &CStr, flags: c::c_int) -> io::Result<()> {
unsafe { ret(syscall_readonly!(__NR_delete_module, name, c_int(flags))) }
}