Struct OspfLinkStateAdvertisementHeader

pub struct OspfLinkStateAdvertisementHeader {
    pub ls_age: u16,
    pub options: u8,
    pub link_state_type: OspfLinkStateType,
    pub link_state_id: u32,
    pub advertising_router: u32,
    pub ls_seq_number: u32,
    pub ls_checksum: u16,
    pub length: u16,
}

The Link State Advertisement header

All link state advertisements begin with a common 20 byte header. This header contains enough information to uniquely identify the advertisement (LS type, Link State ID, and Advertising Router). Multiple instances of the link state advertisement may exist in the routing domain at the same time. It is then necessary to determine which instance is more recent. This is accomplished by examining the LS age, LS sequence number and LS checksum fields that are also contained in the link state advertisement header.

Fields

ls_age: u16

options: u8

link_state_type: OspfLinkStateType

link_state_id: u32

advertising_router: u32

ls_seq_number: u32

ls_checksum: u16

length: u16

Implementations

impl OspfLinkStateAdvertisementHeader

pub fn link_state_id(&self) -> Ipv4Addr

pub fn advertising_router(&self) -> Ipv4Addr

Trait Implementations

impl Debug for OspfLinkStateAdvertisementHeader

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

Formats the value using the given formatter.

impl<'nom> Parse<&'nom [u8]> for OspfLinkStateAdvertisementHeader

fn parse_be(orig_i: &'nom [u8]) -> IResult<&'nom [u8], Self>

Parse input as Big-Endian

fn parse_le(orig_i: &'nom [u8]) -> IResult<&'nom [u8], Self>

Parse input as Little-Endian

fn parse(orig_i: &'nom [u8]) -> IResult<&'nom [u8], Self>

Parse input, not knowing the endianness