Struct DataFrameHeader 

pub struct DataFrameHeader {
    pub frame_type: FrameType,
    pub flags: FrameFlags,
    pub session_id: SessionId,
    pub nonce_counter: u64,
}

Available on crate feature transport only.

Data frame header (unencrypted portion, used as AAD).

Wire format (16 bytes):

+--------+--------+------------------+--------------------+
| Type   | Flags  | Session ID       | Nonce Counter      |
| 1 byte | 1 byte | 6 bytes          | 8 bytes (LE64)     |
+--------+--------+------------------+--------------------+

Fields

frame_type: FrameType

Frame type (should be Data or Close).

flags: FrameFlags

Frame flags.

session_id: SessionId

Session identifier.

nonce_counter: u64

Nonce counter (per-direction, monotonically increasing).

Implementations

impl DataFrameHeader

pub fn new(session_id: SessionId, nonce_counter: u64) -> Self

Create a new data frame header.

pub fn close(session_id: SessionId, nonce_counter: u64) -> Self

Create a close frame header.

pub fn to_bytes(&self) -> [u8; 16]

Serialize header to bytes (16 bytes).

pub fn from_bytes(bytes: &[u8]) -> Result<Self, FrameError>

Parse header from bytes.

Trait Implementations

impl Clone for DataFrameHeader

fn clone(&self) -> DataFrameHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DataFrameHeader

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

Formats the value using the given formatter.

impl PartialEq for DataFrameHeader

fn eq(&self, other: &DataFrameHeader) -> 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 Copy for DataFrameHeader

impl Eq for DataFrameHeader

impl StructuralPartialEq for DataFrameHeader