Struct PacketHeader 

pub struct PacketHeader {
    pub opcode: OpCode,
    pub key_id: KeyId,
    pub session_id: Option<SessionId>,
    pub hmac: Option<[u8; 32]>,
    pub packet_id: Option<PacketId>,
    pub timestamp: Option<u32>,
}

OpenVPN packet header

Fields

opcode: OpCode

Packet opcode

key_id: KeyId

Key ID for data channel

session_id: Option<SessionId>

Local session ID (for control channel)

hmac: Option<[u8; 32]>

HMAC (if tls-auth enabled)

packet_id: Option<PacketId>

Packet ID (for replay protection with tls-auth)

timestamp: Option<u32>

Timestamp (for tls-auth)

Implementations

impl PacketHeader

pub const MIN_SIZE: usize = 1usize

Minimum header size (opcode only)

pub const CONTROL_HEADER_SIZE: usize = 9usize

Control channel header size (without HMAC)

pub fn parse(data: &[u8], has_tls_auth: bool) -> Result<(Self, usize)>

Parse packet header from bytes

pub fn serialize(&self, buf: &mut BytesMut)

Serialize header to bytes

Trait Implementations

impl Clone for PacketHeader

fn clone(&self) -> PacketHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PacketHeader

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

Formats the value using the given formatter.