IPv6-Frag - Fragment Header for IPv6

pcapkit.protocols.internet.ipv6_frag contains IPv6_Frag only, which implements extractor for Fragment Header for IPv6 (IPv6-Frag) *, whose structure is described as below:

Octets

Bits

Name

Description

0

0

frag.next

Next Header

1

8

Reserved

2

16

frag.offset

Fragment Offset

3

29

Reserved

3

31

frag.mf

More Flag

4

32

frag.id

Identification

class pcapkit.protocols.internet.ipv6_frag.IPv6_Frag(file=None, length=None, **kwargs)[source]

Bases: Internet[IPv6_Frag]

This class implements Fragment Header for IPv6.

Parameters

  • *args (Any) – Arbitrary positional arguments.

  • **kwargs (Any) – Arbitrary keyword arguments.

Return type

Protocol[PT]

__post_init__(file: BinaryIO, length: Optional[int] = None, *, extension: bool = False, **kwargs: Any) → None[source]
__post_init__(**kwargs: Any) → None

Post initialisation hook.

Parameters
Keyword Arguments

  • extension – If the protocol is used as an IPv6 extension header.

  • **kwargs – Arbitrary keyword arguments.

See also

For construction argument, please refer to make().

Return type

None

classmethod __index__()[source]

Numeral registry index of the protocol.

Return type

TransType

Returns

Numeral registry index of the protocol in IANA.

property name: Literal['Fragment Header for IPv6']

Name of current protocol.

Return type

Literal[‘Fragment Header for IPv6’]

property alias: Literal['IPv6-Frag']

Acronym of corresponding protocol.

Return type

Literal[‘IPv6-Frag’]

property length: Literal[8]

Header length of current protocol.

Return type

Literal[8]

property payload: Protocol | NoReturn

Payload of current instance.

Raises

UnsupportedCall – if the protocol is used as an IPv6 extension header

property protocol: Optional[str] | NoReturn

Name of next layer protocol (if any).

Raises

UnsupportedCall – if the protocol is used as an IPv6 extension header

property protochain: ProtoChain | NoReturn

Protocol chain of current instance.

Raises

UnsupportedCall – if the protocol is used as an IPv6 extension header

read(length=None, *, extension=False, **kwargs)[source]

Read Fragment Header for IPv6.

Structure of IPv6-Frag header [RFC 8200]:

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|  Next Header  |   Reserved    |      Fragment Offset    |Res|M|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|                         Identification                        |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Parameters

  • length (Optional[int]) – Length of packet data.

  • extension (bool) – If the packet is used as an IPv6 extension header.

  • **kwargs (Any) – Arbitrary keyword arguments.

Return type

IPv6_Frag

Returns

Parsed packet data.

make(**kwargs)[source]

Make (construct) packet data.

Parameters

**kwargs (Any) – Arbitrary keyword arguments.

Return type

NoReturn

Returns

Constructed packet data.

Data Structures

class pcapkit.protocols.data.internet.ipv6_frag.IPv6_Frag(next, offset, mf, id)[source]

Bases: Info

Data model for IPv6 fragment header.

Parameters

  • *args (VT) – Arbitrary positional arguments.

  • **kwargs (VT) – Arbitrary keyword arguments.

Return type

Info

next: TransType

Next header.

offset: int

Fragment offset.

mf: bool

More flag.

id: int

Identification.

*

https://en.wikipedia.org/wiki/IPv6_packet#Fragment