Struct NetClsController

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pub struct NetClsController { /* private fields */ }
Expand description

A controller that allows controlling the net_cls subsystem of a Cgroup.

In esssence, using the net_cls controller, one can attach a custom class to the network packets emitted by the control group’s tasks. This can then later be used in iptables to have custom firewall rules, QoS, etc.

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impl NetClsController

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pub fn new(root: PathBuf) -> Self

Constructs a new NetClsController with root serving as the root of the control group.

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pub fn set_class(&self, class: u64) -> Result<()>

Set the network class id of the outgoing packets of the control group’s tasks.

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pub fn get_class(&self) -> Result<u64>

Get the network class id of the outgoing packets of the control group’s tasks.

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impl Clone for NetClsController

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fn clone(&self) -> NetClsController

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for NetClsController

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<'a> From<&'a Subsystem> for &'a NetClsController

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fn from(sub: &'a Subsystem) -> &'a NetClsController

Converts to this type from the input type.

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> Controller for T
where T: ControllerInternal,

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fn apply(&self, res: &Resources) -> Result<(), Error>

Apply a set of resources to the Controller, invoking its internal functions to pass the kernel the information.

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fn create(&self)

Create this controller

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fn set_notify_on_release(&self, enable: bool) -> Result<(), Error>

Set notify_on_release

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fn set_release_agent(&self, path: &str) -> Result<(), Error>

Set release_agent

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fn exists(&self) -> bool

Does this controller already exist?

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fn delete(&self) -> Result<(), Error>

Delete the controller.

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fn add_task(&self, pid: &CgroupPid) -> Result<(), Error>

Attach a task to this controller.

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fn add_task_by_tgid(&self, pid: &CgroupPid) -> Result<(), Error>

Attach a task to this controller by thread group id.

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fn procs(&self) -> Vec<CgroupPid>

Get the list of procs that this controller has.

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fn tasks(&self) -> Vec<CgroupPid>

Get the list of tasks that this controller has.

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fn set_cgroup_type(&self, cgroup_type: &str) -> Result<(), Error>

set cgroup.type

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fn get_cgroup_type(&self) -> Result<String, Error>

get cgroup.type

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fn control_type(&self) -> Controllers

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fn path(&self) -> &Path

The file system path to the controller.
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fn v2(&self) -> bool

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.