diff options
Diffstat (limited to 'vendor/rustix/src/backend/linux_raw/mount')
| -rw-r--r-- | vendor/rustix/src/backend/linux_raw/mount/mod.rs | 2 | ||||
| -rw-r--r-- | vendor/rustix/src/backend/linux_raw/mount/syscalls.rs | 239 | ||||
| -rw-r--r-- | vendor/rustix/src/backend/linux_raw/mount/types.rs | 332 | 
3 files changed, 573 insertions, 0 deletions
diff --git a/vendor/rustix/src/backend/linux_raw/mount/mod.rs b/vendor/rustix/src/backend/linux_raw/mount/mod.rs new file mode 100644 index 0000000..1e0181a --- /dev/null +++ b/vendor/rustix/src/backend/linux_raw/mount/mod.rs @@ -0,0 +1,2 @@ +pub(crate) mod syscalls; +pub(crate) mod types; diff --git a/vendor/rustix/src/backend/linux_raw/mount/syscalls.rs b/vendor/rustix/src/backend/linux_raw/mount/syscalls.rs new file mode 100644 index 0000000..5cb80cc --- /dev/null +++ b/vendor/rustix/src/backend/linux_raw/mount/syscalls.rs @@ -0,0 +1,239 @@ +//! linux_raw syscalls supporting `rustix::mount`. +//! +//! # Safety +//! +//! See the `rustix::backend` module documentation for details. +#![allow(unsafe_code)] +#![allow(clippy::undocumented_unsafe_blocks)] + +use crate::backend::conv::ret; +#[cfg(feature = "mount")] +use crate::backend::conv::{ret_owned_fd, slice, zero}; +#[cfg(feature = "mount")] +use crate::fd::{BorrowedFd, OwnedFd}; +use crate::ffi::CStr; +use crate::io; + +#[inline] +pub(crate) fn mount( +    source: Option<&CStr>, +    target: &CStr, +    file_system_type: Option<&CStr>, +    flags: super::types::MountFlagsArg, +    data: Option<&CStr>, +) -> io::Result<()> { +    unsafe { +        ret(syscall_readonly!( +            __NR_mount, +            source, +            target, +            file_system_type, +            flags, +            data +        )) +    } +} + +#[inline] +pub(crate) fn unmount(target: &CStr, flags: super::types::UnmountFlags) -> io::Result<()> { +    unsafe { ret(syscall_readonly!(__NR_umount2, target, flags)) } +} + +#[cfg(feature = "mount")] +#[inline] +pub(crate) fn fsopen(fs_name: &CStr, flags: super::types::FsOpenFlags) -> io::Result<OwnedFd> { +    unsafe { ret_owned_fd(syscall_readonly!(__NR_fsopen, fs_name, flags)) } +} + +#[cfg(feature = "mount")] +#[inline] +pub(crate) fn fsmount( +    fs_fd: BorrowedFd<'_>, +    flags: super::types::FsMountFlags, +    attr_flags: super::types::MountAttrFlags, +) -> io::Result<OwnedFd> { +    unsafe { ret_owned_fd(syscall_readonly!(__NR_fsmount, fs_fd, flags, attr_flags)) } +} + +#[cfg(feature = "mount")] +#[inline] +pub(crate) fn move_mount( +    from_dfd: BorrowedFd<'_>, +    from_pathname: &CStr, +    to_dfd: BorrowedFd<'_>, +    to_pathname: &CStr, +    flags: super::types::MoveMountFlags, +) -> io::Result<()> { +    unsafe { +        ret(syscall_readonly!( +            __NR_move_mount, +            from_dfd, +            from_pathname, +            to_dfd, +            to_pathname, +            flags +        )) +    } +} + +#[cfg(feature = "mount")] +#[inline] +pub(crate) fn open_tree( +    dfd: BorrowedFd<'_>, +    filename: &CStr, +    flags: super::types::OpenTreeFlags, +) -> io::Result<OwnedFd> { +    unsafe { ret_owned_fd(syscall_readonly!(__NR_open_tree, dfd, filename, flags)) } +} + +#[cfg(feature = "mount")] +#[inline] +pub(crate) fn fspick( +    dfd: BorrowedFd<'_>, +    path: &CStr, +    flags: super::types::FsPickFlags, +) -> io::Result<OwnedFd> { +    unsafe { ret_owned_fd(syscall_readonly!(__NR_fspick, dfd, path, flags)) } +} + +#[cfg(feature = "mount")] +#[inline] +pub(crate) fn fsconfig_set_flag(fs_fd: BorrowedFd<'_>, key: &CStr) -> io::Result<()> { +    unsafe { +        ret(syscall_readonly!( +            __NR_fsconfig, +            fs_fd, +            super::types::FsConfigCmd::SetFlag, +            key, +            zero(), +            zero() +        )) +    } +} + +#[cfg(feature = "mount")] +#[inline] +pub(crate) fn fsconfig_set_string( +    fs_fd: BorrowedFd<'_>, +    key: &CStr, +    value: &CStr, +) -> io::Result<()> { +    unsafe { +        ret(syscall_readonly!( +            __NR_fsconfig, +            fs_fd, +            super::types::FsConfigCmd::SetString, +            key, +            value, +            zero() +        )) +    } +} + +#[cfg(feature = "mount")] +#[inline] +pub(crate) fn fsconfig_set_binary( +    fs_fd: BorrowedFd<'_>, +    key: &CStr, +    value: &[u8], +) -> io::Result<()> { +    let (value_addr, value_len) = slice(value); +    unsafe { +        ret(syscall_readonly!( +            __NR_fsconfig, +            fs_fd, +            super::types::FsConfigCmd::SetBinary, +            key, +            value_addr, +            value_len +        )) +    } +} + +#[cfg(feature = "mount")] +#[inline] +pub(crate) fn fsconfig_set_fd( +    fs_fd: BorrowedFd<'_>, +    key: &CStr, +    fd: BorrowedFd<'_>, +) -> io::Result<()> { +    unsafe { +        ret(syscall_readonly!( +            __NR_fsconfig, +            fs_fd, +            super::types::FsConfigCmd::SetFd, +            key, +            zero(), +            fd +        )) +    } +} + +#[cfg(feature = "mount")] +#[inline] +pub(crate) fn fsconfig_set_path( +    fs_fd: BorrowedFd<'_>, +    key: &CStr, +    path: &CStr, +    fd: BorrowedFd<'_>, +) -> io::Result<()> { +    unsafe { +        ret(syscall_readonly!( +            __NR_fsconfig, +            fs_fd, +            super::types::FsConfigCmd::SetPath, +            key, +            path, +            fd +        )) +    } +} + +#[cfg(feature = "mount")] +#[inline] +pub(crate) fn fsconfig_set_path_empty( +    fs_fd: BorrowedFd<'_>, +    key: &CStr, +    fd: BorrowedFd<'_>, +) -> io::Result<()> { +    unsafe { +        ret(syscall_readonly!( +            __NR_fsconfig, +            fs_fd, +            super::types::FsConfigCmd::SetPathEmpty, +            key, +            cstr!(""), +            fd +        )) +    } +} + +#[cfg(feature = "mount")] +#[inline] +pub(crate) fn fsconfig_create(fs_fd: BorrowedFd<'_>) -> io::Result<()> { +    unsafe { +        ret(syscall_readonly!( +            __NR_fsconfig, +            fs_fd, +            super::types::FsConfigCmd::Create, +            zero(), +            zero(), +            zero() +        )) +    } +} + +#[cfg(feature = "mount")] +#[inline] +pub(crate) fn fsconfig_reconfigure(fs_fd: BorrowedFd<'_>) -> io::Result<()> { +    unsafe { +        ret(syscall_readonly!( +            __NR_fsconfig, +            fs_fd, +            super::types::FsConfigCmd::Reconfigure, +            zero(), +            zero(), +            zero() +        )) +    } +} diff --git a/vendor/rustix/src/backend/linux_raw/mount/types.rs b/vendor/rustix/src/backend/linux_raw/mount/types.rs new file mode 100644 index 0000000..43cb8c0 --- /dev/null +++ b/vendor/rustix/src/backend/linux_raw/mount/types.rs @@ -0,0 +1,332 @@ +use crate::backend::c; +use bitflags::bitflags; + +bitflags! { +    /// `MS_*` constants for use with [`mount`]. +    /// +    /// [`mount`]: crate::mount::mount +    #[repr(transparent)] +    #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)] +    pub struct MountFlags: c::c_uint { +        /// `MS_BIND` +        const BIND = linux_raw_sys::general::MS_BIND; + +        /// `MS_DIRSYNC` +        const DIRSYNC = linux_raw_sys::general::MS_DIRSYNC; + +        /// `MS_LAZYTIME` +        const LAZYTIME = linux_raw_sys::general::MS_LAZYTIME; + +        /// `MS_MANDLOCK` +        #[doc(alias = "MANDLOCK")] +        const PERMIT_MANDATORY_FILE_LOCKING = linux_raw_sys::general::MS_MANDLOCK; + +        /// `MS_NOATIME` +        const NOATIME = linux_raw_sys::general::MS_NOATIME; + +        /// `MS_NODEV` +        const NODEV = linux_raw_sys::general::MS_NODEV; + +        /// `MS_NODIRATIME` +        const NODIRATIME = linux_raw_sys::general::MS_NODIRATIME; + +        /// `MS_NOEXEC` +        const NOEXEC = linux_raw_sys::general::MS_NOEXEC; + +        /// `MS_NOSUID` +        const NOSUID = linux_raw_sys::general::MS_NOSUID; + +        /// `MS_RDONLY` +        const RDONLY = linux_raw_sys::general::MS_RDONLY; + +        /// `MS_REC` +        const REC = linux_raw_sys::general::MS_REC; + +        /// `MS_RELATIME` +        const RELATIME = linux_raw_sys::general::MS_RELATIME; + +        /// `MS_SILENT` +        const SILENT = linux_raw_sys::general::MS_SILENT; + +        /// `MS_STRICTATIME` +        const STRICTATIME = linux_raw_sys::general::MS_STRICTATIME; + +        /// `MS_SYNCHRONOUS` +        const SYNCHRONOUS = linux_raw_sys::general::MS_SYNCHRONOUS; + +        /// `MS_NOSYMFOLLOW` +        const NOSYMFOLLOW = linux_raw_sys::general::MS_NOSYMFOLLOW; + +        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags> +        const _ = !0; +    } +} + +bitflags! { +    /// `MNT_*` constants for use with [`unmount`]. +    /// +    /// [`unmount`]: crate::mount::unmount +    #[repr(transparent)] +    #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)] +    pub struct UnmountFlags: c::c_uint { +        /// `MNT_FORCE` +        const FORCE = linux_raw_sys::general::MNT_FORCE; +        /// `MNT_DETACH` +        const DETACH = linux_raw_sys::general::MNT_DETACH; +        /// `MNT_EXPIRE` +        const EXPIRE = linux_raw_sys::general::MNT_EXPIRE; +        /// `UMOUNT_NOFOLLOW` +        const NOFOLLOW = linux_raw_sys::general::UMOUNT_NOFOLLOW; + +        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags> +        const _ = !0; +    } +} + +#[cfg(feature = "mount")] +bitflags! { +    /// `FSOPEN_*` constants for use with [`fsopen`]. +    /// +    /// [`fsopen`]: crate::mount::fsopen +    #[repr(transparent)] +    #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)] +    pub struct FsOpenFlags: c::c_uint { +        /// `FSOPEN_CLOEXEC` +        const FSOPEN_CLOEXEC = linux_raw_sys::general::FSOPEN_CLOEXEC; + +        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags> +        const _ = !0; +    } +} + +#[cfg(feature = "mount")] +bitflags! { +    /// `FSMOUNT_*` constants for use with [`fsmount`]. +    /// +    /// [`fsmount`]: crate::mount::fsmount +    #[repr(transparent)] +    #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)] +    pub struct FsMountFlags: c::c_uint { +        /// `FSMOUNT_CLOEXEC` +        const FSMOUNT_CLOEXEC = linux_raw_sys::general::FSMOUNT_CLOEXEC; + +        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags> +        const _ = !0; +    } +} + +/// `FSCONFIG_*` constants for use with the `fsconfig` syscall. +#[cfg(feature = "mount")] +#[derive(Debug, Copy, Clone, Eq, PartialEq)] +#[repr(u32)] +pub(crate) enum FsConfigCmd { +    /// `FSCONFIG_SET_FLAG` +    SetFlag = linux_raw_sys::general::fsconfig_command::FSCONFIG_SET_FLAG as u32, + +    /// `FSCONFIG_SET_STRING` +    SetString = linux_raw_sys::general::fsconfig_command::FSCONFIG_SET_STRING as u32, + +    /// `FSCONFIG_SET_BINARY` +    SetBinary = linux_raw_sys::general::fsconfig_command::FSCONFIG_SET_BINARY as u32, + +    /// `FSCONFIG_SET_PATH` +    SetPath = linux_raw_sys::general::fsconfig_command::FSCONFIG_SET_PATH as u32, + +    /// `FSCONFIG_SET_PATH_EMPTY` +    SetPathEmpty = linux_raw_sys::general::fsconfig_command::FSCONFIG_SET_PATH_EMPTY as u32, + +    /// `FSCONFIG_SET_FD` +    SetFd = linux_raw_sys::general::fsconfig_command::FSCONFIG_SET_FD as u32, + +    /// `FSCONFIG_CMD_CREATE` +    Create = linux_raw_sys::general::fsconfig_command::FSCONFIG_CMD_CREATE as u32, + +    /// `FSCONFIG_CMD_RECONFIGURE` +    Reconfigure = linux_raw_sys::general::fsconfig_command::FSCONFIG_CMD_RECONFIGURE as u32, +} + +#[cfg(feature = "mount")] +bitflags! { +    /// `MOUNT_ATTR_*` constants for use with [`fsmount`]. +    /// +    /// [`fsmount`]: crate::mount::fsmount +    #[repr(transparent)] +    #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)] +    pub struct MountAttrFlags: c::c_uint { +        /// `MOUNT_ATTR_RDONLY` +        const MOUNT_ATTR_RDONLY = linux_raw_sys::general::MOUNT_ATTR_RDONLY; + +        /// `MOUNT_ATTR_NOSUID` +        const MOUNT_ATTR_NOSUID = linux_raw_sys::general::MOUNT_ATTR_NOSUID; + +        /// `MOUNT_ATTR_NODEV` +        const MOUNT_ATTR_NODEV = linux_raw_sys::general::MOUNT_ATTR_NODEV; + +        /// `MOUNT_ATTR_NOEXEC` +        const MOUNT_ATTR_NOEXEC = linux_raw_sys::general::MOUNT_ATTR_NOEXEC; + +        /// `MOUNT_ATTR__ATIME` +        const MOUNT_ATTR__ATIME = linux_raw_sys::general::MOUNT_ATTR__ATIME; + +        /// `MOUNT_ATTR_RELATIME` +        const MOUNT_ATTR_RELATIME = linux_raw_sys::general::MOUNT_ATTR_RELATIME; + +        /// `MOUNT_ATTR_NOATIME` +        const MOUNT_ATTR_NOATIME = linux_raw_sys::general::MOUNT_ATTR_NOATIME; + +        /// `MOUNT_ATTR_STRICTATIME` +        const MOUNT_ATTR_STRICTATIME = linux_raw_sys::general::MOUNT_ATTR_STRICTATIME; + +        /// `MOUNT_ATTR_NODIRATIME` +        const MOUNT_ATTR_NODIRATIME = linux_raw_sys::general::MOUNT_ATTR_NODIRATIME; + +        /// `MOUNT_ATTR_NOUSER` +        const MOUNT_ATTR_IDMAP = linux_raw_sys::general::MOUNT_ATTR_IDMAP; + +        /// `MOUNT_ATTR__ATIME_FLAGS` +        const MOUNT_ATTR_NOSYMFOLLOW = linux_raw_sys::general::MOUNT_ATTR_NOSYMFOLLOW; + +        /// `MOUNT_ATTR__ATIME_FLAGS` +        const MOUNT_ATTR_SIZE_VER0 = linux_raw_sys::general::MOUNT_ATTR_SIZE_VER0; + +        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags> +        const _ = !0; +    } +} + +#[cfg(feature = "mount")] +bitflags! { +    /// `MOVE_MOUNT_*` constants for use with [`move_mount`]. +    /// +    /// [`move_mount`]: crate::mount::move_mount +    #[repr(transparent)] +    #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)] +    pub struct MoveMountFlags: c::c_uint { +        /// `MOVE_MOUNT_F_EMPTY_PATH` +        const MOVE_MOUNT_F_SYMLINKS = linux_raw_sys::general::MOVE_MOUNT_F_SYMLINKS; + +        /// `MOVE_MOUNT_F_AUTOMOUNTS` +        const MOVE_MOUNT_F_AUTOMOUNTS = linux_raw_sys::general::MOVE_MOUNT_F_AUTOMOUNTS; + +        /// `MOVE_MOUNT_F_EMPTY_PATH` +        const MOVE_MOUNT_F_EMPTY_PATH = linux_raw_sys::general::MOVE_MOUNT_F_EMPTY_PATH; + +        /// `MOVE_MOUNT_T_SYMLINKS` +        const MOVE_MOUNT_T_SYMLINKS = linux_raw_sys::general::MOVE_MOUNT_T_SYMLINKS; + +        /// `MOVE_MOUNT_T_AUTOMOUNTS` +        const MOVE_MOUNT_T_AUTOMOUNTS = linux_raw_sys::general::MOVE_MOUNT_T_AUTOMOUNTS; + +        /// `MOVE_MOUNT_T_EMPTY_PATH` +        const MOVE_MOUNT_T_EMPTY_PATH = linux_raw_sys::general::MOVE_MOUNT_T_EMPTY_PATH; + +        /// `MOVE_MOUNT__MASK` +        const MOVE_MOUNT_SET_GROUP = linux_raw_sys::general::MOVE_MOUNT_SET_GROUP; + +        // TODO: add when Linux 6.5 is released +        // /// `MOVE_MOUNT_BENEATH` +        // const MOVE_MOUNT_BENEATH = linux_raw_sys::general::MOVE_MOUNT_BENEATH; + +        /// `MOVE_MOUNT__MASK` +        const MOVE_MOUNT__MASK = linux_raw_sys::general::MOVE_MOUNT__MASK; + +        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags> +        const _ = !0; +    } +} + +#[cfg(feature = "mount")] +bitflags! { +    /// `OPENTREE_*` constants for use with [`open_tree`]. +    /// +    /// [`open_tree`]: crate::mount::open_tree +    #[repr(transparent)] +    #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)] +    pub struct OpenTreeFlags: c::c_uint { +        /// `OPENTREE_CLONE` +        const OPEN_TREE_CLONE = linux_raw_sys::general::OPEN_TREE_CLONE; + +        /// `OPENTREE_CLOEXEC` +        const OPEN_TREE_CLOEXEC = linux_raw_sys::general::OPEN_TREE_CLOEXEC; + +        /// `AT_EMPTY_PATH` +        const AT_EMPTY_PATH = linux_raw_sys::general::AT_EMPTY_PATH; + +        /// `AT_NO_AUTOMOUNT` +        const AT_NO_AUTOMOUNT = linux_raw_sys::general::AT_NO_AUTOMOUNT; + +        /// `AT_RECURSIVE` +        const AT_RECURSIVE = linux_raw_sys::general::AT_RECURSIVE; + +        /// `AT_SYMLINK_NOFOLLOW` +        const AT_SYMLINK_NOFOLLOW = linux_raw_sys::general::AT_SYMLINK_NOFOLLOW; + +        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags> +        const _ = !0; +    } +} + +#[cfg(feature = "mount")] +bitflags! { +    /// `FSPICK_*` constants for use with [`fspick`]. +    /// +    /// [`fspick`]: crate::mount::fspick +    #[repr(transparent)] +    #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)] +    pub struct FsPickFlags: c::c_uint { +        /// `FSPICK_CLOEXEC` +        const FSPICK_CLOEXEC = linux_raw_sys::general::FSPICK_CLOEXEC; + +        /// `FSPICK_SYMLINK_NOFOLLOW` +        const FSPICK_SYMLINK_NOFOLLOW = linux_raw_sys::general::FSPICK_SYMLINK_NOFOLLOW; + +        /// `FSPICK_NO_AUTOMOUNT` +        const FSPICK_NO_AUTOMOUNT = linux_raw_sys::general::FSPICK_NO_AUTOMOUNT; + +        /// `FSPICK_EMPTY_PATH` +        const FSPICK_EMPTY_PATH = linux_raw_sys::general::FSPICK_EMPTY_PATH; + +        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags> +        const _ = !0; +    } +} + +bitflags! { +    /// `MS_*` constants for use with [`mount_change`]. +    /// +    /// [`mount_change`]: crate::mount::mount_change +    #[repr(transparent)] +    #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)] +    pub struct MountPropagationFlags: c::c_uint { +        /// `MS_SILENT` +        const SILENT = linux_raw_sys::general::MS_SILENT; +        /// `MS_SHARED` +        const SHARED = linux_raw_sys::general::MS_SHARED; +        /// `MS_PRIVATE` +        const PRIVATE = linux_raw_sys::general::MS_PRIVATE; +        /// `MS_SLAVE` +        const SLAVE = linux_raw_sys::general::MS_SLAVE; +        /// `MS_UNBINDABLE` +        const UNBINDABLE = linux_raw_sys::general::MS_UNBINDABLE; +        /// `MS_REC` +        const REC = linux_raw_sys::general::MS_REC; + +        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags> +        const _ = !0; +    } +} + +bitflags! { +    #[repr(transparent)] +    #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)] +    pub(crate) struct InternalMountFlags: c::c_uint { +        const REMOUNT = linux_raw_sys::general::MS_REMOUNT; +        const MOVE = linux_raw_sys::general::MS_MOVE; + +        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags> +        const _ = !0; +    } +} + +#[repr(transparent)] +pub(crate) struct MountFlagsArg(pub(crate) c::c_uint);  | 
