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//! Linux `mount`.
use crate::backend::mount::types::{
InternalMountFlags, MountFlags, MountFlagsArg, MountPropagationFlags, UnmountFlags,
};
use crate::ffi::CStr;
use crate::path::{self, option_into_with_c_str};
use crate::{backend, io};
/// `mount(source, target, filesystemtype, mountflags, data)`
///
/// # References
/// - [Linux]
///
#[inline]
pub fn mount<Source: path::Arg, Target: path::Arg, Fs: path::Arg, Data: path::Arg>(
source: Source,
target: Target,
file_system_type: Fs,
flags: MountFlags,
data: Data,
) -> io::Result<()> {
source.into_with_c_str(|source| {
target.into_with_c_str(|target| {
file_system_type.into_with_c_str(|file_system_type| {
data.into_with_c_str(|data| {
backend::mount::syscalls::mount(
Some(source),
target,
Some(file_system_type),
MountFlagsArg(flags.bits()),
Some(data),
)
})
})
})
})
}
/// `mount2(source, target, filesystemtype, mountflags, data)`
///
/// This is same as the [`mount`], except it adds support for
/// the source, target, and data being omitted, and the data
/// is passed as a `CStr` rather than a `path::Arg`.
///
/// # References
/// - [Linux]
///
#[inline]
pub fn mount2<Source: path::Arg, Target: path::Arg, Fs: path::Arg>(
source: Option<Source>,
target: Target,
file_system_type: Option<Fs>,
flags: MountFlags,
data: Option<&CStr>,
) -> io::Result<()> {
option_into_with_c_str(source, |source| {
target.into_with_c_str(|target| {
option_into_with_c_str(file_system_type, |file_system_type| {
backend::mount::syscalls::mount(
source,
target,
file_system_type,
MountFlagsArg(flags.bits()),
data,
)
})
})
})
}
/// `mount(NULL, target, NULL, MS_REMOUNT | mountflags, data)`
///
/// # References
/// - [Linux]
///
#[inline]
#[doc(alias = "mount")]
#[doc(alias = "MS_REMOUNT")]
pub fn mount_remount<Target: path::Arg, Data: path::Arg>(
target: Target,
flags: MountFlags,
data: Data,
) -> io::Result<()> {
target.into_with_c_str(|target| {
data.into_with_c_str(|data| {
backend::mount::syscalls::mount(
None,
target,
None,
MountFlagsArg(InternalMountFlags::REMOUNT.bits() | flags.bits()),
Some(data),
)
})
})
}
/// `mount(source, target, NULL, MS_BIND, NULL)`
///
/// # References
/// - [Linux]
///
#[inline]
#[doc(alias = "mount")]
#[doc(alias = "MS_BIND")]
pub fn mount_bind<Source: path::Arg, Target: path::Arg>(
source: Source,
target: Target,
) -> io::Result<()> {
source.into_with_c_str(|source| {
target.into_with_c_str(|target| {
backend::mount::syscalls::mount(
Some(source),
target,
None,
MountFlagsArg(MountFlags::BIND.bits()),
None,
)
})
})
}
/// `mount(source, target, NULL, MS_BIND | MS_REC, NULL)`
///
/// # References
/// - [Linux]
///
#[inline]
#[doc(alias = "mount")]
#[doc(alias = "MS_REC")]
pub fn mount_recursive_bind<Source: path::Arg, Target: path::Arg>(
source: Source,
target: Target,
) -> io::Result<()> {
source.into_with_c_str(|source| {
target.into_with_c_str(|target| {
backend::mount::syscalls::mount(
Some(source),
target,
None,
MountFlagsArg(MountFlags::BIND.bits() | MountPropagationFlags::REC.bits()),
None,
)
})
})
}
/// `mount(NULL, target, NULL, mountflags, NULL)`
///
/// # References
/// - [Linux]
///
#[inline]
#[doc(alias = "mount")]
pub fn mount_change<Target: path::Arg>(
target: Target,
flags: MountPropagationFlags,
) -> io::Result<()> {
target.into_with_c_str(|target| {
backend::mount::syscalls::mount(None, target, None, MountFlagsArg(flags.bits()), None)
})
}
/// `mount(source, target, NULL, MS_MOVE, NULL)`
///
/// This is not the same as the `move_mount` syscall. If you want to use that,
/// use [`move_mount`] instead.
///
/// # References
/// - [Linux]
///
/// [`move_mount`]: crate::mount::move_mount
#[inline]
#[doc(alias = "mount")]
#[doc(alias = "MS_MOVE")]
pub fn mount_move<Source: path::Arg, Target: path::Arg>(
source: Source,
target: Target,
) -> io::Result<()> {
source.into_with_c_str(|source| {
target.into_with_c_str(|target| {
backend::mount::syscalls::mount(
Some(source),
target,
None,
MountFlagsArg(InternalMountFlags::MOVE.bits()),
None,
)
})
})
}
/// `umount2(target, flags)`
///
/// # References
/// - [Linux]
///
#[inline]
#[doc(alias = "umount", alias = "umount2")]
pub fn unmount<Target: path::Arg>(target: Target, flags: UnmountFlags) -> io::Result<()> {
target.into_with_c_str(|target| backend::mount::syscalls::unmount(target, flags))
}