Struct ReportGroupRecordV3Header 

pub struct ReportGroupRecordV3Header {
    pub record_type: ReportGroupRecordType,
    pub aux_data_len: u8,
    pub num_of_sources: u16,
    pub multicast_address: [u8; 4],
}

Header part of an “IGMPv3 Report Group Record”.

The header contains the following parts for the group record:

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+  -
|  Record Type  |  Aux Data Len |     Number of Sources (N)     |  |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+  | part of header and this type
|                       Multicast Address                       |  ↓
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+  -
|                       Source Address [1]                      |
+-                                                             -+
|                       Source Address [2]                      |
+-                                                             -+
.                               .                               .
.                               .                               .
.                               .                               .
+-                                                             -+
|                       Source Address [N]                      |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|                                                               |
.                                                               .
.                         Auxiliary Data                        .
.                                                               .
|                                                               |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

Fields

record_type: ReportGroupRecordType

Identifies what type of record

aux_data_len: u8

The Aux Data Len field contains the length of the Auxiliary Data field in this Group Record, in units of 32-bit words. It may contain zero, to indicate the absence of any auxiliary data.

num_of_sources: u16

The Number of Sources (N) field specifies how many source addresses are present in this Group Record.

multicast_address: [u8; 4]

The Multicast Address field contains the IP multicast address to which this Group Record pertains.

Implementations

impl ReportGroupRecordV3Header

pub const LEN: usize = 8

Number of bytes/octets an ReportGroupRecordV3Header takes up in serialized form.

pub fn from_slice( slice: &[u8], ) -> Result<(ReportGroupRecordV3Header, &[u8]), LenError>

Reads an ReportGroupRecordV3Header from a slice and returns a tuple containing the resulting header and the unused part of the slice.

The “unused part” is the slice that follows the fixed 8 byte header (i.e. the source addresses and auxiliary data of the group record).

Errors

• err::LenError if the slice is shorter than ReportGroupRecordV3Header::LEN (8 bytes).

pub fn to_bytes(&self) -> [u8; 8]

Converts the header to its on-the-wire byte representation.

Trait Implementations

impl Clone for ReportGroupRecordV3Header

fn clone(&self) -> ReportGroupRecordV3Header

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ReportGroupRecordV3Header

impl Debug for ReportGroupRecordV3Header

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

Formats the value using the given formatter.

impl Eq for ReportGroupRecordV3Header

impl Hash for ReportGroupRecordV3Header

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 ReportGroupRecordV3Header

fn eq(&self, other: &ReportGroupRecordV3Header) -> bool

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ReportGroupRecordV3Header