Enum Header 

pub enum Header<'a> {
    Ethernet(EtherHeaderVlan<'a>),
    Sll(&'a SllHeader),
    Sllv2(&'a Sllv2Header),
    Null(&'a NullHeader),
    Ipv4(Ipv4HeaderOpt<'a>),
    Ipv6(Ipv6HeaderExt<'a>),
    Arp(ArpHeaderFull<'a>),
    Tcp(TcpHeaderOpt<'a>),
    Udp(&'a UdpHeader),
    Sctp(&'a SctpHeader),
    Icmp(&'a IcmpHeader),
    Icmp6(&'a Icmp6Header),
    Vxlan(&'a VxlanHeader),
    Geneve(GeneveHeaderOpt<'a>),
    Gre(GreHeaderOpt<'a>),
    Mpls(MplsLabelStack<'a>),
    Teredo(Box<TeredoPacket<'a>>),
    Gtpv1(Gtpv1HeaderOpt<'a>),
    Gtpv2(Gtpv2HeaderOpt<'a>),
    L2tpv2(L2tpv2HeaderOpt<'a>),
    L2tpv3(L2tpv3SessionHeaderCookie<'a>),
    Nvgre(&'a NvgreHeader),
    Pbb(PbbHeader<'a>),
    Stt(SttPacket<'a>),
    Pptp(PptpGreHeaderOpt<'a>),
    Ipip(IpipTunnel<'a>),
    Unknown {
        proto: UnknownProto,
        data: &'a [u8],
    },
}

Enum wrapper for all supported packet headers

This enum provides a unified way to handle different protocol headers when iterating through a packet’s protocol stack.

Variants

Ethernet(EtherHeaderVlan<'a>)

Ethernet II header (possibly with VLAN tags)

Sll(&'a SllHeader)

Linux cooked capture v1 header

Sllv2(&'a Sllv2Header)

Linux cooked capture v2 header

Null(&'a NullHeader)

BSD Null/Loopback header

Ipv4(Ipv4HeaderOpt<'a>)

IPv4 header with options

Ipv6(Ipv6HeaderExt<'a>)

IPv6 header with extension headers

Arp(ArpHeaderFull<'a>)

ARP header with addresses

Tcp(TcpHeaderOpt<'a>)

TCP header with options

Udp(&'a UdpHeader)

UDP header

Sctp(&'a SctpHeader)

SCTP header

Icmp(&'a IcmpHeader)

ICMPv4 header

Icmp6(&'a Icmp6Header)

ICMPv6 header

Vxlan(&'a VxlanHeader)

VXLAN tunnel header

Geneve(GeneveHeaderOpt<'a>)

Geneve tunnel header with options

Gre(GreHeaderOpt<'a>)

GRE tunnel header with options

Mpls(MplsLabelStack<'a>)

MPLS label stack

Teredo(Box<TeredoPacket<'a>>)

Teredo tunnel (parsed packet includes auth/origin indicators) Boxed to reduce Header enum size (TeredoPacket is 96 bytes)

Gtpv1(Gtpv1HeaderOpt<'a>)

GTPv1 header with options

Gtpv2(Gtpv2HeaderOpt<'a>)

GTPv2 header with options

L2tpv2(L2tpv2HeaderOpt<'a>)

L2TPv2 header with options

L2tpv3(L2tpv3SessionHeaderCookie<'a>)

L2TPv3 session header with cookie

Nvgre(&'a NvgreHeader)

NVGRE header (Network Virtualization using GRE)

Pbb(PbbHeader<'a>)

PBB header (Provider Backbone Bridge / MAC-in-MAC)

Stt(SttPacket<'a>)

STT packet (Stateless Transport Tunneling)

Pptp(PptpGreHeaderOpt<'a>)

PPTP GRE header with options

Ipip(IpipTunnel<'a>)

IP-in-IP tunnel (IPIP, SIT, IP4in6, IP6Tnl)

Unknown

Unknown/unsupported protocol

Contains the protocol identifier and the remaining unparsed data.

Fields

proto: UnknownProto

The protocol that couldn’t be parsed

data: &'a [u8]

The remaining unparsed data

Implementations

impl<'a> Header<'a>

pub fn name(&self) -> &'static str

Returns the name of the protocol

pub fn is_link_layer(&self) -> bool

Returns true if this is a link layer header

pub fn is_network_layer(&self) -> bool

Returns true if this is a network layer header

pub fn is_transport_layer(&self) -> bool

Returns true if this is a transport layer header

pub fn is_tunnel(&self) -> bool

Returns true if this is a tunnel header

pub fn is_unknown(&self) -> bool

Returns true if this is an unknown protocol

Trait Implementations

impl Debug for Header<'_>

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

Formats the value using the given formatter.

impl Display for Header<'_>

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

Formats the value using the given formatter.