dnsjit.core.object.gre(3)

Generic Routing Encapsulation (GRE) part of a packet

Section 3 dnsjit bookworm source

Description

dnsjit.core.object.gre

NAME

dnsjit.core.object.gre - Generic Routing Encapsulation (GRE) part of a packet

DESCRIPTION

The GRE part of a packet that usually can be found in the object chain after parsing with, for example, Layer filter. See RFC 1701.

Attributes

gre_flags

The GRE flags.

ether_type

The protocol type of the payload packet.

checksum

The checksum of the GRE header and the payload packet.

key

The Key field contains a four octet number which was inserted by the encapsulator.

sequence

The Sequence Number field contains an unsigned 32 bit integer which is inserted by the encapsulator.

Functions

Gre:type()

Return the textual type of the object.

Gre:prev()

Return the previous object.

Gre:cast()

Cast the object to the underlining object module and return it.

Gre:uncast()

Cast the object to the generic object module and return it.

Gre:copy()

Make a copy of the object and return it.

Gre:free()

Free the object, should only be used on copies or otherwise allocated.

SEE ALSO

dnsjit.core.object(3), dnsjit.filter.layer(3)

AUTHORS and CONTRIBUTORS

Jerry Lundström (DNS-OARC), Tomáš KÅÞek (CZ.NIC), Petr Å paÄek (ISC)

Maintained by DNS-OARC

https://www.dns-oarc.net/

BUGS

For issues and feature requests please use:

https://github.com/DNS-OARC/dnsjit/issues

For question and help please use:

admin@dns-oarc.net