Struct DnsTypeBitmaps 

pub struct DnsTypeBitmaps { /* private fields */ }

A DNSSEC “Type Bit Maps” field: the set of RR types present at an owner name, as carried by NSEC (RFC 4034 Section 4.1.2) and NSEC3 (RFC 5155 Section 3.2.1).

On the wire the field is a sequence of (Window Block #, Bitmap Length, Bitmap) triples in increasing window order. Each window covers 256 RR types (the low 8 bits of the type for that window block); a set bit means the corresponding type is present.

This is a pure wire structure: it preserves the exact set of present type values, including unknown or unassigned codepoints, and re-encodes them deterministically. It performs no resolver, validation, or trust logic.

Implementations

impl DnsTypeBitmaps

pub fn from_types<I>(types: I) -> Self

where I: IntoIterator<Item = u16>,

Build a type-bitmaps field from an explicit set of RR type values.

Duplicate values are collapsed and the set is sorted so the encoded windows are deterministic. Unknown or unassigned type values are preserved verbatim; nothing is rejected here.

pub fn types(&self) -> &[u16]

The present RR type values, sorted ascending.

pub fn contains(&self, record_type: u16) -> bool

True when the given RR type value is marked present.

Trait Implementations

impl Clone for DnsTypeBitmaps

fn clone(&self) -> DnsTypeBitmaps

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DnsTypeBitmaps

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

Formats the value using the given formatter.

impl Default for DnsTypeBitmaps

fn default() -> DnsTypeBitmaps

Returns the “default value” for a type.

impl Eq for DnsTypeBitmaps

impl Hash for DnsTypeBitmaps

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for DnsTypeBitmaps

fn eq(&self, other: &DnsTypeBitmaps) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for DnsTypeBitmaps