diff options
Diffstat (limited to 'vendor/rustix/src/fs/ioctl.rs')
| -rw-r--r-- | vendor/rustix/src/fs/ioctl.rs | 169 |
1 files changed, 0 insertions, 169 deletions
diff --git a/vendor/rustix/src/fs/ioctl.rs b/vendor/rustix/src/fs/ioctl.rs deleted file mode 100644 index c126fdd1..00000000 --- a/vendor/rustix/src/fs/ioctl.rs +++ /dev/null @@ -1,169 +0,0 @@ -//! Filesystem-oriented `ioctl` functions. - -#![allow(unsafe_code)] - -#[cfg(linux_kernel)] -use { - crate::backend::c, - crate::fd::AsFd, - crate::{backend, ffi, io, ioctl}, -}; - -use bitflags::bitflags; - -#[cfg(all(linux_kernel, not(any(target_arch = "sparc", target_arch = "sparc64"))))] -use crate::fd::{AsRawFd as _, BorrowedFd}; - -/// `ioctl(fd, BLKSSZGET)`—Returns the logical block size of a block device. -/// -/// This is mentioned in the [Linux `openat` manual page]. -/// -/// [Linux `openat` manual page]: https://man7.org/linux/man-pages/man2/openat.2.html -#[cfg(linux_kernel)] -#[inline] -#[doc(alias = "BLKSSZGET")] -pub fn ioctl_blksszget<Fd: AsFd>(fd: Fd) -> io::Result<u32> { - // SAFETY: `BLZSSZGET` is a getter opcode that gets a `u32`. - unsafe { - let ctl = ioctl::Getter::<{ c::BLKSSZGET }, c::c_uint>::new(); - ioctl::ioctl(fd, ctl) - } -} - -/// `ioctl(fd, BLKPBSZGET)`—Returns the physical block size of a block device. -#[cfg(linux_kernel)] -#[inline] -#[doc(alias = "BLKPBSZGET")] -pub fn ioctl_blkpbszget<Fd: AsFd>(fd: Fd) -> io::Result<u32> { - // SAFETY: `BLKPBSZGET` is a getter opcode that gets a `u32`. - unsafe { - let ctl = ioctl::Getter::<{ c::BLKPBSZGET }, c::c_uint>::new(); - ioctl::ioctl(fd, ctl) - } -} - -/// `ioctl(fd, FICLONE, src_fd)`—Share data between open files. -/// -/// This ioctl is not available on SPARC platforms. -/// -/// # References -/// - [Linux] -/// -/// [Linux]: https://man7.org/linux/man-pages/man2/ioctl_ficlone.2.html -#[cfg(all(linux_kernel, not(any(target_arch = "sparc", target_arch = "sparc64"))))] -#[inline] -#[doc(alias = "FICLONE")] -pub fn ioctl_ficlone<Fd: AsFd, SrcFd: AsFd>(fd: Fd, src_fd: SrcFd) -> io::Result<()> { - unsafe { ioctl::ioctl(fd, Ficlone(src_fd.as_fd())) } -} - -/// `ioctl(fd, EXT4_IOC_RESIZE_FS, blocks)`—Resize ext4 filesystem on fd. -#[cfg(linux_kernel)] -#[inline] -#[doc(alias = "EXT4_IOC_RESIZE_FS")] -pub fn ext4_ioc_resize_fs<Fd: AsFd>(fd: Fd, blocks: u64) -> io::Result<()> { - // SAFETY: `EXT4_IOC_RESIZE_FS` is a pointer setter opcode. - unsafe { - let ctl = ioctl::Setter::<{ backend::fs::EXT4_IOC_RESIZE_FS }, u64>::new(blocks); - ioctl::ioctl(fd, ctl) - } -} - -#[cfg(all(linux_kernel, not(any(target_arch = "sparc", target_arch = "sparc64"))))] -struct Ficlone<'a>(BorrowedFd<'a>); - -#[cfg(all(linux_kernel, not(any(target_arch = "sparc", target_arch = "sparc64"))))] -unsafe impl ioctl::Ioctl for Ficlone<'_> { - type Output = (); - - const IS_MUTATING: bool = false; - - fn opcode(&self) -> ioctl::Opcode { - c::FICLONE as ioctl::Opcode - } - - fn as_ptr(&mut self) -> *mut c::c_void { - self.0.as_raw_fd() as *mut c::c_void - } - - unsafe fn output_from_ptr( - _: ioctl::IoctlOutput, - _: *mut c::c_void, - ) -> io::Result<Self::Output> { - Ok(()) - } -} - -#[cfg(linux_kernel)] -bitflags! { - /// `FS_*` constants for use with [`ioctl_getflags`]. - /// - /// [`ioctl_getflags`]: crate::fs::ioctl::ioctl_getflags - #[repr(transparent)] - #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)] - pub struct IFlags: ffi::c_uint { - /// `FS_APPEND_FL` - const APPEND = linux_raw_sys::general::FS_APPEND_FL; - /// `FS_COMPR_FL` - const COMPRESSED = linux_raw_sys::general::FS_COMPR_FL; - /// `FS_DIRSYNC_FL` - const DIRSYNC = linux_raw_sys::general::FS_DIRSYNC_FL; - /// `FS_IMMUTABLE_FL` - const IMMUTABLE = linux_raw_sys::general::FS_IMMUTABLE_FL; - /// `FS_JOURNAL_DATA_FL` - const JOURNALING = linux_raw_sys::general::FS_JOURNAL_DATA_FL; - /// `FS_NOATIME_FL` - const NOATIME = linux_raw_sys::general::FS_NOATIME_FL; - /// `FS_NOCOW_FL` - const NOCOW = linux_raw_sys::general::FS_NOCOW_FL; - /// `FS_NODUMP_FL` - const NODUMP = linux_raw_sys::general::FS_NODUMP_FL; - /// `FS_NOTAIL_FL` - const NOTAIL = linux_raw_sys::general::FS_NOTAIL_FL; - /// `FS_PROJINHERIT_FL` - const PROJECT_INHERIT = linux_raw_sys::general::FS_PROJINHERIT_FL; - /// `FS_SECRM_FL` - const SECURE_REMOVAL = linux_raw_sys::general::FS_SECRM_FL; - /// `FS_SYNC_FL` - const SYNC = linux_raw_sys::general::FS_SYNC_FL; - /// `FS_TOPDIR_FL` - const TOPDIR = linux_raw_sys::general::FS_TOPDIR_FL; - /// `FS_UNRM_FL` - const UNRM = linux_raw_sys::general::FS_UNRM_FL; - } -} - -/// `ioctl(fd, FS_IOC_GETFLAGS)`—Returns the [inode flags] attributes -/// -/// [inode flags]: https://man7.org/linux/man-pages/man2/ioctl_iflags.2.html -#[cfg(linux_kernel)] -#[inline] -#[doc(alias = "FS_IOC_GETFLAGS")] -pub fn ioctl_getflags<Fd: AsFd>(fd: Fd) -> io::Result<IFlags> { - unsafe { - #[cfg(target_pointer_width = "32")] - let ctl = ioctl::Getter::<{ c::FS_IOC32_GETFLAGS }, u32>::new(); - #[cfg(target_pointer_width = "64")] - let ctl = ioctl::Getter::<{ c::FS_IOC_GETFLAGS }, u32>::new(); - - ioctl::ioctl(fd, ctl).map(IFlags::from_bits_retain) - } -} - -/// `ioctl(fd, FS_IOC_SETFLAGS)`—Modify the [inode flags] attributes -/// -/// [inode flags]: https://man7.org/linux/man-pages/man2/ioctl_iflags.2.html -#[cfg(linux_kernel)] -#[inline] -#[doc(alias = "FS_IOC_SETFLAGS")] -pub fn ioctl_setflags<Fd: AsFd>(fd: Fd, flags: IFlags) -> io::Result<()> { - unsafe { - #[cfg(target_pointer_width = "32")] - let ctl = ioctl::Setter::<{ c::FS_IOC32_SETFLAGS }, u32>::new(flags.bits()); - - #[cfg(target_pointer_width = "64")] - let ctl = ioctl::Setter::<{ c::FS_IOC_SETFLAGS }, u32>::new(flags.bits()); - - ioctl::ioctl(fd, ctl) - } -} |