diff options
Diffstat (limited to 'vendor/rustix/src/thread/setns.rs')
-rw-r--r-- | vendor/rustix/src/thread/setns.rs | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/vendor/rustix/src/thread/setns.rs b/vendor/rustix/src/thread/setns.rs deleted file mode 100644 index ef61d11..0000000 --- a/vendor/rustix/src/thread/setns.rs +++ /dev/null @@ -1,137 +0,0 @@ -use bitflags::bitflags; -use linux_raw_sys::general::{ - CLONE_FILES, CLONE_FS, CLONE_NEWCGROUP, CLONE_NEWIPC, CLONE_NEWNET, CLONE_NEWNS, CLONE_NEWPID, - CLONE_NEWTIME, CLONE_NEWUSER, CLONE_NEWUTS, CLONE_SYSVSEM, -}; - -use crate::backend::c::c_int; -use crate::backend::thread::syscalls; -use crate::fd::BorrowedFd; -use crate::io; - -bitflags! { - /// Thread name space type. - #[repr(transparent)] - #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)] - pub struct ThreadNameSpaceType: u32 { - /// Time name space. - const TIME = CLONE_NEWTIME; - /// Mount name space. - const MOUNT = CLONE_NEWNS; - /// Control group (CGroup) name space. - const CONTROL_GROUP = CLONE_NEWCGROUP; - /// `Host name` and `NIS domain name` (UTS) name space. - const HOST_NAME_AND_NIS_DOMAIN_NAME = CLONE_NEWUTS; - /// Inter-process communication (IPC) name space. - const INTER_PROCESS_COMMUNICATION = CLONE_NEWIPC; - /// User name space. - const USER = CLONE_NEWUSER; - /// Process ID name space. - const PROCESS_ID = CLONE_NEWPID; - /// Network name space. - const NETWORK = CLONE_NEWNET; - - /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags> - const _ = !0; - } -} - -/// Type of name space referred to by a link. -#[derive(Copy, Clone, Debug, Eq, PartialEq)] -#[repr(u32)] -pub enum LinkNameSpaceType { - /// Time name space. - Time = CLONE_NEWTIME, - /// Mount name space. - Mount = CLONE_NEWNS, - /// Control group (CGroup) name space. - ControlGroup = CLONE_NEWCGROUP, - /// `Host name` and `NIS domain name` (UTS) name space. - HostNameAndNISDomainName = CLONE_NEWUTS, - /// Inter-process communication (IPC) name space. - InterProcessCommunication = CLONE_NEWIPC, - /// User name space. - User = CLONE_NEWUSER, - /// Process ID name space. - ProcessID = CLONE_NEWPID, - /// Network name space. - Network = CLONE_NEWNET, -} - -bitflags! { - /// `CLONE_*` for use with [`unshare`]. - #[repr(transparent)] - #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)] - pub struct UnshareFlags: u32 { - /// `CLONE_FILES`. - const FILES = CLONE_FILES; - /// `CLONE_FS`. - const FS = CLONE_FS; - /// `CLONE_NEWCGROUP`. - const NEWCGROUP = CLONE_NEWCGROUP; - /// `CLONE_NEWIPC`. - const NEWIPC = CLONE_NEWIPC; - /// `CLONE_NEWNET`. - const NEWNET = CLONE_NEWNET; - /// `CLONE_NEWNS`. - const NEWNS = CLONE_NEWNS; - /// `CLONE_NEWPID`. - const NEWPID = CLONE_NEWPID; - /// `CLONE_NEWTIME`. - const NEWTIME = CLONE_NEWTIME; - /// `CLONE_NEWUSER`. - const NEWUSER = CLONE_NEWUSER; - /// `CLONE_NEWUTS` - const NEWUTS = CLONE_NEWUTS; - /// `CLONE_SYSVSEM`. - const SYSVSEM = CLONE_SYSVSEM; - - /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags> - const _ = !0; - } -} - -/// Reassociate the calling thread with the namespace associated with link -/// referred to by `fd`. -/// -/// `fd` must refer to one of the magic links in a `/proc/[pid]/ns/` directory, -/// or a bind mount to such a link. -/// -/// # References -/// - [Linux] -/// -/// [Linux]: https://man7.org/linux/man-pages/man2/setns.2.html -pub fn move_into_link_name_space( - fd: BorrowedFd<'_>, - allowed_type: Option<LinkNameSpaceType>, -) -> io::Result<()> { - let allowed_type = allowed_type.map_or(0, |t| t as c_int); - syscalls::setns(fd, allowed_type).map(|_r| ()) -} - -/// Atomically move the calling thread into one or more of the same namespaces -/// as the thread referred to by `fd`. -/// -/// `fd` must refer to a thread ID. See: `pidfd_open` and `clone`. -/// -/// # References -/// - [Linux] -/// -/// [Linux]: https://man7.org/linux/man-pages/man2/setns.2.html -pub fn move_into_thread_name_spaces( - fd: BorrowedFd<'_>, - allowed_types: ThreadNameSpaceType, -) -> io::Result<()> { - syscalls::setns(fd, allowed_types.bits() as c_int).map(|_r| ()) -} - -/// `unshare(flags)`—Disassociate parts of the current thread's execution -/// context with other threads. -/// -/// # References -/// - [Linux] -/// -/// [Linux]: https://man7.org/linux/man-pages/man2/unshare.2.html -pub fn unshare(flags: UnshareFlags) -> io::Result<()> { - syscalls::unshare(flags) -} |