netstack3_udp

Struct UdpStateBuilder

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

A builder for UDP layer state.

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impl UdpStateBuilder

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pub fn send_port_unreachable( &mut self, send_port_unreachable: bool, ) -> &mut Self

Enable or disable sending ICMP Port Unreachable messages in response to inbound UDP packets for which a corresponding local socket does not exist (default: disabled).

Responding with an ICMP Port Unreachable error is a vector for reflected Denial-of-Service (DoS) attacks. The attacker can send a UDP packet to a closed port with the source address set to the address of the victim, and ICMP response will be sent there.

According to RFC 1122 Section 4.1.3.1, “[i]f a datagram arrives addressed to a UDP port for which there is no pending LISTEN call, UDP SHOULD send an ICMP Port Unreachable message.” Since an ICMP response is not mandatory, and due to the security risks described, responses are disabled by default.

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pub fn build<I: IpExt, D: WeakDeviceIdentifier, BT: UdpBindingsTypes>( self, ) -> UdpState<I, D, BT>

Builds a new UdpState for IP version I.

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impl Clone for UdpStateBuilder

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fn clone(&self) -> UdpStateBuilder

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 Default for UdpStateBuilder

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fn default() -> UdpStateBuilder

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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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<O, BC> BuildableCoreContext<BC> for O
where O: Default,

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type Builder = ()

The builder type that can build this core context.
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fn build(_bindings_ctx: &mut BC, _: ()) -> O

Consumes this builder and returns the context.
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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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<CC, BC, Meta> RecvFrameContext<Meta, BC> for CC
where Meta: ReceivableFrameMeta<CC, BC>,

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fn receive_frame<B>(&mut self, bindings_ctx: &mut BC, metadata: Meta, frame: B)
where B: BufferMut + Debug,

Receive a frame. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<CC, BC, Meta> SendFrameContext<BC, Meta> for CC
where Meta: SendableFrameMeta<CC, BC>,

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fn send_frame<S>( &mut self, bindings_ctx: &mut BC, metadata: Meta, frame: S, ) -> Result<(), ErrorAndSerializer<SendFrameErrorReason, S>>
where S: Serializer, <S as Serializer>::Buffer: BufferMut,

Send a frame. Read more
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impl<Id, CC, BC> TimerHandler<BC, Id> for CC
where BC: TimerBindingsTypes, Id: HandleableTimer<CC, BC>,

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fn handle_timer( &mut self, bindings_ctx: &mut BC, dispatch: Id, timer: <BC as TimerBindingsTypes>::UniqueTimerId, )

Handle a timer firing. Read more
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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.
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impl<L, T> UnlockedAccess<L> for T

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type Data = <L as UnlockedAccessMarkerFor<T>>::Data

The type of state being accessed.
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type Guard<'l> = &'l <L as UnlockedAccessMarkerFor<T>>::Data where T: 'l

A guard providing read access to the data.
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fn access(&self) -> <T as UnlockedAccess<L>>::Guard<'_>

How to access the state.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<B, A> LockBefore<B> for A
where B: LockAfter<A>,