Struct pcap_file::pcap_header::PcapHeader

pub struct PcapHeader {
    pub magic_number: u32,
    pub version_major: u16,
    pub version_minor: u16,
    pub ts_correction: i32,
    pub ts_accuracy: u32,
    pub snaplen: u32,
    pub datalink: Datalink,
}

Struct that represent the global Pcap header of a Pcap file

Fields

magic_number: u32

Magic number

version_major: u16

Major version number

version_minor: u16

Minor version number

ts_correction: i32

GMT to local timezone correction, should always be 0

ts_accuracy: u32

Timestamp accuracy, should always be 0

snaplen: u32

Max length of captured packet, typically 65535

datalink: Datalink

Datalink type (first layer in the packet (u32))

Methods

impl PcapHeader

fn with_datalink(datalink: Datalink) -> PcapHeader

Creates a new PcapHeader with the following parameters:

PcapHeader {

    magic_number : 0xa1b2c3d4,
    version_major : 2,
    version_minor : 4,
    ts_correction : 0,
    ts_accuracy : 0,
    snaplen : 65535,
    datalink : datalink
};

fn from_reader<R: Read>(reader: &mut R) -> ResultChain<PcapHeader>

Parse a Reader and create a new PcapHeader from it if possible

fn to_array<B: ByteOrder>(&self) -> ResultChain<Vec<u8>>

Convert the PcapHeader to a slice of bytes.

fn endianness(&self) -> Endianness

Return the endianness of the global header

Panics

Panics if the magic number is invalid

fn ts_resolution(&self) -> TsResolution

Return the timestamp resolution of the global header

Panics

Panics if the magic number is invalid

Trait Implementations

impl Copy for PcapHeader

impl Clone for PcapHeader

fn clone(&self) -> PcapHeader

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PcapHeader

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.