Struct rpki::resources::AsResources

pub struct AsResources(_);

The AS Resources of an RPKI Certificate.

This type contains the ‘Autonomous System Identifier Delegation Extension’ as defined in [RFC 3779] in the restricted form specified in [RFC 6487].

This type contains the resources as represented in an RPKI certificate’s AS resources extension. This extension provides two options: there can be an actual set of AS numbers associated with the certificate – this is the AsResources::Blocks variant –, or the AS resources of the issuer can be inherited – the AsResources::Inherit variant.

Methods

impl AsResources

pub fn is_inherited(&self) -> bool

Returns whether the resources are of the inherited variant.

pub fn as_blocks(&self) -> Option<&AsBlocks>

Returns a reference to the blocks if there are any.

pub fn to_blocks(&self) -> Result<AsBlocks, ValidationError>

Converts the resources into blocks or returns an error.

impl AsResources

pub fn take_from<S: Source>(cons: &mut Constructed<S>) -> Result<Self, S::Err>

Takes the AS resources from the beginning of an encoded value.

The ASN.1 specification for the ASIdentifiers types parsed here is given in section 3.2.3 of RFC 3779 as follows:

ASIdentifiers      ::= SEQUENCE {
    asnum              [0] EXPLICIT AsIdentifierChoice OPTIONAL,
    rdi                [1] EXPLICIT AsIdentifierChoice OPTIONAL }

AsIdentifierChoice ::= CHOICE {
    inherit            NULL,
    asIdsOrRanges      SEQUENCE OF ASIdOrRange }

ASIdOrRange        ::= CHOICE {
    id                 ASId,
    range              ASRange }

ASRange            ::= SEQUENCE {
    min                ASId,
    max                ASId }

ASId               ::= INTEGER

Section 4.8.11 of RFC 6487 limits the ASIdentifiers to the asnum choice. If asIdsOrRanges is chosen, it must include a non-empty set of AS numbers.

This function implements these limitations. It maps the id choice of AsIdOrRange to a range covering one number in order to keep things simpler.

pub fn encode(self) -> impl Values

Trait Implementations

impl Clone for AsResources

fn clone(&self) -> AsResources

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for AsResources

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

Formats the value using the given formatter.