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Capability

oxios_kernel::capability::types

Struct Capability 

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pub struct Capability {
    pub id: CapabilityId,
    pub resource: ResourceRef,
    pub rights: Rights,
    pub issuer: Issuer,
}
Expand description

An unforgeable token encoding authority over a specific resource.

A capability binds a set of Rights to a ResourceRef, and records who issued it. Agents present capabilities to the AccessManager to prove they are authorised to perform an action.

§Immutability

Capabilities are immutable once created. To change rights, create a new capability and replace the old one in the CSpace.

Fields§

§id: CapabilityId

Unique identifier for this capability.

§resource: ResourceRef

The resource this capability governs.

§rights: Rights

The rights granted over the resource.

§issuer: Issuer

Who issued this capability.

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impl Capability

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pub fn kernel(resource: ResourceRef, rights: Rights) -> Self

Creates a new kernel-issued capability with the given resource and rights.

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pub fn delegated(resource: ResourceRef, rights: Rights, issuer: AgentId) -> Self

Creates a new agent-issued capability (delegation).

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pub fn grants(&self, required: Rights) -> bool

Returns true if this capability grants the requested rights.

Trait Implementations§

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impl Clone for Capability

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fn clone(&self) -> Capability

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

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

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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<'de> Deserialize<'de> for Capability

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Serialize for Capability

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more

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impl<T> Any for T
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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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Immutably borrows from an owned value. Read more
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🔬This is a nightly-only experimental API. (clone_to_uninit)
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const ALIGN: usize

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The type for initializers.
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