Struct Data 

pub struct Data {
    pub name: Arc<Name>,
    /* private fields */
}

An NDN Data packet.

Stores wire-format bytes for zero-copy CS storage and signature verification. The signed region is contiguous in the wire encoding — it is sliced directly from raw without copying.

Fields

name: Arc<Name>

Name — always decoded eagerly.

Implementations

impl Data

pub fn decode(raw: Bytes) -> Result<Data, PacketError>

Decode a Data packet from raw wire bytes.

pub fn signed_region(&self) -> &[u8]

The signed region — a zero-copy slice suitable for signature verification.

pub fn sig_value(&self) -> &[u8]

The signature value bytes — a zero-copy slice.

sig_value_start points to the SignatureValue TLV’s type byte (0x17). This method parses past the type and length to return only the raw value bytes.

pub fn raw(&self) -> &Bytes

pub fn implicit_digest(&self) -> Digest

The implicit SHA-256 digest of this Data packet — the SHA-256 hash of the full wire encoding. Used for exact Data retrieval via ImplicitSha256DigestComponent (type 0x01) in Interest names.

pub fn content(&self) -> Option<&Bytes>

pub fn meta_info(&self) -> Option<&MetaInfo>

pub fn sig_info(&self) -> Option<&SignatureInfo>

pub fn link_delegations(&self) -> Option<Vec<Arc<Name>>>

Parse the delegation list from a Link object (ContentType=LINK).

Per NDN Packet Format v0.3 §6.3.1, when ContentType is LINK the Content field contains one or more Name TLVs. Returns None if this Data is not a Link or has no content.

Trait Implementations

impl Debug for Data

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

Formats the value using the given formatter.