Initial vendor packages

Signed-off-by: Valentin Popov <valentin@popov.link>

3 files changed, 614 insertions, 0 deletions

diff --git a/vendor/rustix/src/backend/libc/mount/mod.rs b/vendor/rustix/src/backend/libc/mount/mod.rs
new file mode 100644
index 0000000..1e0181a
--- /dev/null
+++ b/vendor/rustix/src/backend/libc/mount/mod.rs
@@ -0,0 +1,2 @@
+pub(crate) mod syscalls;
+pub(crate) mod types;
diff --git a/vendor/rustix/src/backend/libc/mount/syscalls.rs b/vendor/rustix/src/backend/libc/mount/syscalls.rs
new file mode 100644
index 0000000..7245114
--- /dev/null
+++ b/vendor/rustix/src/backend/libc/mount/syscalls.rs
@@ -0,0 +1,272 @@
+use crate::backend::c;
+use crate::backend::conv::ret;
+#[cfg(feature = "mount")]
+use crate::backend::conv::{borrowed_fd, c_str, ret_owned_fd};
+#[cfg(feature = "mount")]
+use crate::fd::{BorrowedFd, OwnedFd};
+use crate::ffi::CStr;
+use crate::io;
+use core::ptr::null;
+
+#[cfg(linux_kernel)]
+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(c::mount(
+            source.map_or_else(null, CStr::as_ptr),
+            target.as_ptr(),
+            file_system_type.map_or_else(null, CStr::as_ptr),
+            flags.0,
+            data.map_or_else(null, CStr::as_ptr).cast(),
+        ))
+    }
+}
+
+#[cfg(linux_kernel)]
+pub(crate) fn unmount(target: &CStr, flags: super::types::UnmountFlags) -> io::Result<()> {
+    unsafe { ret(c::umount2(target.as_ptr(), bitflags_bits!(flags))) }
+}
+
+#[cfg(linux_kernel)]
+#[cfg(feature = "mount")]
+pub(crate) fn fsopen(fs_name: &CStr, flags: super::types::FsOpenFlags) -> io::Result<OwnedFd> {
+    syscall! {
+        fn fsopen(
+            fs_name: *const c::c_char,
+            flags: c::c_uint
+        ) via SYS_fsopen -> c::c_int
+    }
+    unsafe { ret_owned_fd(fsopen(c_str(fs_name), flags.bits())) }
+}
+
+#[cfg(linux_kernel)]
+#[cfg(feature = "mount")]
+pub(crate) fn fsmount(
+    fs_fd: BorrowedFd<'_>,
+    flags: super::types::FsMountFlags,
+    attr_flags: super::types::MountAttrFlags,
+) -> io::Result<OwnedFd> {
+    syscall! {
+        fn fsmount(
+            fs_fd: c::c_int,
+            flags: c::c_uint,
+            attr_flags: c::c_uint
+        ) via SYS_fsmount -> c::c_int
+    }
+    unsafe { ret_owned_fd(fsmount(borrowed_fd(fs_fd), flags.bits(), attr_flags.bits())) }
+}
+
+#[cfg(linux_kernel)]
+#[cfg(feature = "mount")]
+pub(crate) fn move_mount(
+    from_dfd: BorrowedFd<'_>,
+    from_pathname: &CStr,
+    to_dfd: BorrowedFd<'_>,
+    to_pathname: &CStr,
+    flags: super::types::MoveMountFlags,
+) -> io::Result<()> {
+    syscall! {
+        fn move_mount(
+            from_dfd: c::c_int,
+            from_pathname: *const c::c_char,
+            to_dfd: c::c_int,
+            to_pathname: *const c::c_char,
+            flags: c::c_uint
+        ) via SYS_move_mount -> c::c_int
+    }
+    unsafe {
+        ret(move_mount(
+            borrowed_fd(from_dfd),
+            c_str(from_pathname),
+            borrowed_fd(to_dfd),
+            c_str(to_pathname),
+            flags.bits(),
+        ))
+    }
+}
+
+#[cfg(linux_kernel)]
+#[cfg(feature = "mount")]
+pub(crate) fn open_tree(
+    dfd: BorrowedFd<'_>,
+    filename: &CStr,
+    flags: super::types::OpenTreeFlags,
+) -> io::Result<OwnedFd> {
+    syscall! {
+        fn open_tree(
+            dfd: c::c_int,
+            filename: *const c::c_char,
+            flags: c::c_uint
+        ) via SYS_open_tree -> c::c_int
+    }
+
+    unsafe { ret_owned_fd(open_tree(borrowed_fd(dfd), c_str(filename), flags.bits())) }
+}
+
+#[cfg(linux_kernel)]
+#[cfg(feature = "mount")]
+pub(crate) fn fspick(
+    dfd: BorrowedFd<'_>,
+    path: &CStr,
+    flags: super::types::FsPickFlags,
+) -> io::Result<OwnedFd> {
+    syscall! {
+        fn fspick(
+            dfd: c::c_int,
+            path: *const c::c_char,
+            flags: c::c_uint
+        ) via SYS_fspick -> c::c_int
+    }
+
+    unsafe { ret_owned_fd(fspick(borrowed_fd(dfd), c_str(path), flags.bits())) }
+}
+
+#[cfg(feature = "mount")]
+#[cfg(linux_kernel)]
+syscall! {
+    fn fsconfig(
+        fs_fd: c::c_int,
+        cmd: c::c_uint,
+        key: *const c::c_char,
+        val: *const c::c_char,
+        aux: c::c_int
+    ) via SYS_fsconfig -> c::c_int
+}
+
+#[cfg(linux_kernel)]
+#[cfg(feature = "mount")]
+pub(crate) fn fsconfig_set_flag(fs_fd: BorrowedFd<'_>, key: &CStr) -> io::Result<()> {
+    unsafe {
+        ret(fsconfig(
+            borrowed_fd(fs_fd),
+            super::types::FsConfigCmd::SetFlag as _,
+            c_str(key),
+            null(),
+            0,
+        ))
+    }
+}
+
+#[cfg(linux_kernel)]
+#[cfg(feature = "mount")]
+pub(crate) fn fsconfig_set_string(
+    fs_fd: BorrowedFd<'_>,
+    key: &CStr,
+    value: &CStr,
+) -> io::Result<()> {
+    unsafe {
+        ret(fsconfig(
+            borrowed_fd(fs_fd),
+            super::types::FsConfigCmd::SetString as _,
+            c_str(key),
+            c_str(value),
+            0,
+        ))
+    }
+}
+
+#[cfg(linux_kernel)]
+#[cfg(feature = "mount")]
+pub(crate) fn fsconfig_set_binary(
+    fs_fd: BorrowedFd<'_>,
+    key: &CStr,
+    value: &[u8],
+) -> io::Result<()> {
+    unsafe {
+        ret(fsconfig(
+            borrowed_fd(fs_fd),
+            super::types::FsConfigCmd::SetBinary as _,
+            c_str(key),
+            value.as_ptr().cast(),
+            value.len().try_into().map_err(|_| io::Errno::OVERFLOW)?,
+        ))
+    }
+}
+
+#[cfg(linux_kernel)]
+#[cfg(feature = "mount")]
+pub(crate) fn fsconfig_set_fd(
+    fs_fd: BorrowedFd<'_>,
+    key: &CStr,
+    fd: BorrowedFd<'_>,
+) -> io::Result<()> {
+    unsafe {
+        ret(fsconfig(
+            borrowed_fd(fs_fd),
+            super::types::FsConfigCmd::SetFd as _,
+            c_str(key),
+            null(),
+            borrowed_fd(fd),
+        ))
+    }
+}
+
+#[cfg(linux_kernel)]
+#[cfg(feature = "mount")]
+pub(crate) fn fsconfig_set_path(
+    fs_fd: BorrowedFd<'_>,
+    key: &CStr,
+    path: &CStr,
+    fd: BorrowedFd<'_>,
+) -> io::Result<()> {
+    unsafe {
+        ret(fsconfig(
+            borrowed_fd(fs_fd),
+            super::types::FsConfigCmd::SetPath as _,
+            c_str(key),
+            c_str(path),
+            borrowed_fd(fd),
+        ))
+    }
+}
+
+#[cfg(linux_kernel)]
+#[cfg(feature = "mount")]
+pub(crate) fn fsconfig_set_path_empty(
+    fs_fd: BorrowedFd<'_>,
+    key: &CStr,
+    fd: BorrowedFd<'_>,
+) -> io::Result<()> {
+    unsafe {
+        ret(fsconfig(
+            borrowed_fd(fs_fd),
+            super::types::FsConfigCmd::SetPathEmpty as _,
+            c_str(key),
+            c_str(cstr!("")),
+            borrowed_fd(fd),
+        ))
+    }
+}
+
+#[cfg(linux_kernel)]
+#[cfg(feature = "mount")]
+pub(crate) fn fsconfig_create(fs_fd: BorrowedFd<'_>) -> io::Result<()> {
+    unsafe {
+        ret(fsconfig(
+            borrowed_fd(fs_fd),
+            super::types::FsConfigCmd::Create as _,
+            null(),
+            null(),
+            0,
+        ))
+    }
+}
+
+#[cfg(linux_kernel)]
+#[cfg(feature = "mount")]
+pub(crate) fn fsconfig_reconfigure(fs_fd: BorrowedFd<'_>) -> io::Result<()> {
+    unsafe {
+        ret(fsconfig(
+            borrowed_fd(fs_fd),
+            super::types::FsConfigCmd::Reconfigure as _,
+            null(),
+            null(),
+            0,
+        ))
+    }
+}
diff --git a/vendor/rustix/src/backend/libc/mount/types.rs b/vendor/rustix/src/backend/libc/mount/types.rs
new file mode 100644
index 0000000..1023686
--- /dev/null
+++ b/vendor/rustix/src/backend/libc/mount/types.rs
@@ -0,0 +1,340 @@
+use crate::backend::c;
+use bitflags::bitflags;
+
+#[cfg(linux_kernel)]
+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_ulong {
+        /// `MS_BIND`
+        const BIND = c::MS_BIND;
+
+        /// `MS_DIRSYNC`
+        const DIRSYNC = c::MS_DIRSYNC;
+
+        /// `MS_LAZYTIME`
+        const LAZYTIME = c::MS_LAZYTIME;
+
+        /// `MS_MANDLOCK`
+        #[doc(alias = "MANDLOCK")]
+        const PERMIT_MANDATORY_FILE_LOCKING = c::MS_MANDLOCK;
+
+        /// `MS_NOATIME`
+        const NOATIME = c::MS_NOATIME;
+
+        /// `MS_NODEV`
+        const NODEV = c::MS_NODEV;
+
+        /// `MS_NODIRATIME`
+        const NODIRATIME = c::MS_NODIRATIME;
+
+        /// `MS_NOEXEC`
+        const NOEXEC = c::MS_NOEXEC;
+
+        /// `MS_NOSUID`
+        const NOSUID = c::MS_NOSUID;
+
+        /// `MS_RDONLY`
+        const RDONLY = c::MS_RDONLY;
+
+        /// `MS_REC`
+        const REC = c::MS_REC;
+
+        /// `MS_RELATIME`
+        const RELATIME = c::MS_RELATIME;
+
+        /// `MS_SILENT`
+        const SILENT = c::MS_SILENT;
+
+        /// `MS_STRICTATIME`
+        const STRICTATIME = c::MS_STRICTATIME;
+
+        /// `MS_SYNCHRONOUS`
+        const SYNCHRONOUS = c::MS_SYNCHRONOUS;
+
+        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags>
+        const _ = !0;
+    }
+}
+
+#[cfg(linux_kernel)]
+bitflags! {
+    /// `MNT_*` constants for use with [`unmount`].
+    ///
+    /// [`unmount`]: crate::mount::unmount
+    #[repr(transparent)]
+    #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
+    pub struct UnmountFlags: u32 {
+        /// `MNT_FORCE`
+        const FORCE = bitcast!(c::MNT_FORCE);
+        /// `MNT_DETACH`
+        const DETACH = bitcast!(c::MNT_DETACH);
+        /// `MNT_EXPIRE`
+        const EXPIRE = bitcast!(c::MNT_EXPIRE);
+        /// `UMOUNT_NOFOLLOW`
+        const NOFOLLOW = bitcast!(c::UMOUNT_NOFOLLOW);
+
+        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags>
+        const _ = !0;
+    }
+}
+
+#[cfg(feature = "mount")]
+#[cfg(linux_kernel)]
+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 = 0x0000_0001;
+
+        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags>
+        const _ = !0;
+    }
+}
+
+#[cfg(feature = "mount")]
+#[cfg(linux_kernel)]
+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 = 0x0000_0001;
+
+        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags>
+        const _ = !0;
+    }
+}
+
+/// `FSCONFIG_*` constants for use with the `fsconfig` syscall.
+#[cfg(feature = "mount")]
+#[cfg(linux_kernel)]
+#[derive(Debug, Copy, Clone, Eq, PartialEq)]
+#[repr(u32)]
+pub(crate) enum FsConfigCmd {
+    /// `FSCONFIG_SET_FLAG`
+    SetFlag = 0,
+
+    /// `FSCONFIG_SET_STRING`
+    SetString = 1,
+
+    /// `FSCONFIG_SET_BINARY`
+    SetBinary = 2,
+
+    /// `FSCONFIG_SET_PATH`
+    SetPath = 3,
+
+    /// `FSCONFIG_SET_PATH_EMPTY`
+    SetPathEmpty = 4,
+
+    /// `FSCONFIG_SET_FD`
+    SetFd = 5,
+
+    /// `FSCONFIG_CMD_CREATE`
+    Create = 6,
+
+    /// `FSCONFIG_CMD_RECONFIGURE`
+    Reconfigure = 7,
+}
+
+#[cfg(feature = "mount")]
+#[cfg(linux_kernel)]
+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 = 0x0000_0001;
+
+        /// `MOUNT_ATTR_NOSUID`
+        const MOUNT_ATTR_NOSUID = 0x0000_0002;
+
+        /// `MOUNT_ATTR_NODEV`
+        const MOUNT_ATTR_NODEV = 0x0000_0004;
+
+        /// `MOUNT_ATTR_NOEXEC`
+        const MOUNT_ATTR_NOEXEC = 0x0000_0008;
+
+        /// `MOUNT_ATTR__ATIME`
+        const MOUNT_ATTR__ATIME = 0x0000_0070;
+
+        /// `MOUNT_ATTR_RELATIME`
+        const MOUNT_ATTR_RELATIME = 0x0000_0000;
+
+        /// `MOUNT_ATTR_NOATIME`
+        const MOUNT_ATTR_NOATIME = 0x0000_0010;
+
+        /// `MOUNT_ATTR_STRICTATIME`
+        const MOUNT_ATTR_STRICTATIME = 0x0000_0020;
+
+        /// `MOUNT_ATTR_NODIRATIME`
+        const MOUNT_ATTR_NODIRATIME = 0x0000_0080;
+
+        /// `MOUNT_ATTR_NOUSER`
+        const MOUNT_ATTR_IDMAP = 0x0010_0000;
+
+        /// `MOUNT_ATTR__ATIME_FLAGS`
+        const MOUNT_ATTR_NOSYMFOLLOW = 0x0020_0000;
+
+        /// `MOUNT_ATTR__ATIME_FLAGS`
+        const MOUNT_ATTR_SIZE_VER0 = 32;
+
+        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags>
+        const _ = !0;
+    }
+}
+
+#[cfg(feature = "mount")]
+#[cfg(linux_kernel)]
+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 = 0x0000_0001;
+
+        /// `MOVE_MOUNT_F_AUTOMOUNTS`
+        const MOVE_MOUNT_F_AUTOMOUNTS = 0x0000_0002;
+
+        /// `MOVE_MOUNT_F_EMPTY_PATH`
+        const MOVE_MOUNT_F_EMPTY_PATH = 0x0000_0004;
+
+        /// `MOVE_MOUNT_T_SYMLINKS`
+        const MOVE_MOUNT_T_SYMLINKS = 0x0000_0010;
+
+        /// `MOVE_MOUNT_T_AUTOMOUNTS`
+        const MOVE_MOUNT_T_AUTOMOUNTS = 0x0000_0020;
+
+        /// `MOVE_MOUNT_T_EMPTY_PATH`
+        const MOVE_MOUNT_T_EMPTY_PATH = 0x0000_0040;
+
+        /// `MOVE_MOUNT__MASK`
+        const MOVE_MOUNT_SET_GROUP = 0x0000_0100;
+
+        // TODO: add when Linux 6.5 is released
+        // /// `MOVE_MOUNT_BENEATH`
+        // const MOVE_MOUNT_BENEATH = 0x0000_0200;
+
+        /// `MOVE_MOUNT__MASK`
+        const MOVE_MOUNT__MASK = 0x0000_0377;
+
+        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags>
+        const _ = !0;
+    }
+}
+
+#[cfg(feature = "mount")]
+#[cfg(linux_kernel)]
+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 = 1;
+
+        /// `OPENTREE_CLOEXEC`
+        const OPEN_TREE_CLOEXEC = c::O_CLOEXEC as c::c_uint;
+
+        /// `AT_EMPTY_PATH`
+        const AT_EMPTY_PATH = c::AT_EMPTY_PATH as c::c_uint;
+
+        /// `AT_NO_AUTOMOUNT`
+        const AT_NO_AUTOMOUNT = c::AT_NO_AUTOMOUNT as c::c_uint;
+
+        /// `AT_RECURSIVE`
+        const AT_RECURSIVE = c::AT_RECURSIVE as c::c_uint;
+
+        /// `AT_SYMLINK_NOFOLLOW`
+        const AT_SYMLINK_NOFOLLOW = c::AT_SYMLINK_NOFOLLOW as c::c_uint;
+
+        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags>
+        const _ = !0;
+    }
+}
+
+#[cfg(feature = "mount")]
+#[cfg(linux_kernel)]
+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 = 0x0000_0001;
+
+        /// `FSPICK_SYMLINK_NOFOLLOW`
+        const FSPICK_SYMLINK_NOFOLLOW = 0x0000_0002;
+
+        /// `FSPICK_NO_AUTOMOUNT`
+        const FSPICK_NO_AUTOMOUNT = 0x0000_0004;
+
+        /// `FSPICK_EMPTY_PATH`
+        const FSPICK_EMPTY_PATH = 0x0000_0008;
+
+        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags>
+        const _ = !0;
+    }
+}
+
+#[cfg(linux_kernel)]
+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_ulong {
+        /// `MS_SILENT`
+        const SILENT = c::MS_SILENT;
+        /// `MS_SHARED`
+        const SHARED = c::MS_SHARED;
+        /// `MS_PRIVATE`
+        const PRIVATE = c::MS_PRIVATE;
+        /// `MS_SLAVE`
+        const SLAVE = c::MS_SLAVE;
+        /// `MS_UNBINDABLE`
+        const UNBINDABLE = c::MS_UNBINDABLE;
+        /// `MS_REC`
+        const REC = c::MS_REC;
+
+        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags>
+        const _ = !0;
+    }
+}
+
+#[cfg(linux_kernel)]
+bitflags! {
+    #[repr(transparent)]
+    #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
+    pub(crate) struct InternalMountFlags: c::c_ulong {
+        const REMOUNT = c::MS_REMOUNT;
+        const MOVE = c::MS_MOVE;
+
+        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags>
+        const _ = !0;
+    }
+}
+
+#[cfg(linux_kernel)]
+pub(crate) struct MountFlagsArg(pub(crate) c::c_ulong);