OSPF¶

RFC 2328 OSPF version 2

exception os_ken.lib.packet.ospf.InvalidChecksum¶

class os_ken.lib.packet.ospf.OSPFDBDesc(length=None, router_id='0.0.0.0', area_id='0.0.0.0', au_type=1, authentication=0, checksum=None, version=2, mtu=1500, options=0, i_flag=0, m_flag=0, ms_flag=0, sequence_number=0, lsa_headers=None)¶

classmethod parser(buf)¶

Decode a protocol header.

This method is used only when decoding a packet.

Decode a protocol header at offset 0 in bytearray buf. Returns the following three objects.

• An object to describe the decoded header.
• A packet_base.PacketBase subclass appropriate for the rest of the packet. None when the rest of the packet should be considered as raw payload.
• The rest of packet.

class os_ken.lib.packet.ospf.OSPFHello(length=None, router_id='0.0.0.0', area_id='0.0.0.0', au_type=1, authentication=0, checksum=None, version=2, mask='0.0.0.0', hello_interval=10, options=0, priority=1, dead_interval=40, designated_router='0.0.0.0', backup_router='0.0.0.0', neighbors=None)¶

classmethod parser(buf)¶

Decode a protocol header.

This method is used only when decoding a packet.

Decode a protocol header at offset 0 in bytearray buf. Returns the following three objects.

• An object to describe the decoded header.
• A packet_base.PacketBase subclass appropriate for the rest of the packet. None when the rest of the packet should be considered as raw payload.
• The rest of packet.

class os_ken.lib.packet.ospf.OSPFLSAck(length=None, router_id='0.0.0.0', area_id='0.0.0.0', au_type=1, authentication=0, checksum=None, version=2, lsa_headers=None)¶

classmethod parser(buf)¶

Decode a protocol header.

This method is used only when decoding a packet.

Decode a protocol header at offset 0 in bytearray buf. Returns the following three objects.

• An object to describe the decoded header.
• A packet_base.PacketBase subclass appropriate for the rest of the packet. None when the rest of the packet should be considered as raw payload.
• The rest of packet.

class os_ken.lib.packet.ospf.OSPFLSReq(length=None, router_id='0.0.0.0', area_id='0.0.0.0', au_type=1, authentication=0, checksum=None, version=2, lsa_requests=None)¶

classmethod parser(buf)¶

Decode a protocol header.

This method is used only when decoding a packet.

Decode a protocol header at offset 0 in bytearray buf. Returns the following three objects.

• An object to describe the decoded header.
• A packet_base.PacketBase subclass appropriate for the rest of the packet. None when the rest of the packet should be considered as raw payload.
• The rest of packet.

class os_ken.lib.packet.ospf.OSPFLSUpd(length=None, router_id='0.0.0.0', area_id='0.0.0.0', au_type=1, authentication=0, checksum=None, version=2, lsas=None)¶

classmethod parser(buf)¶

Decode a protocol header.

This method is used only when decoding a packet.

Decode a protocol header at offset 0 in bytearray buf. Returns the following three objects.

• An object to describe the decoded header.
• A packet_base.PacketBase subclass appropriate for the rest of the packet. None when the rest of the packet should be considered as raw payload.
• The rest of packet.

class os_ken.lib.packet.ospf.OSPFMessage(type_, length=None, router_id='0.0.0.0', area_id='0.0.0.0', au_type=1, authentication=0, checksum=None, version=2)¶

Base class for OSPF version 2 messages.

classmethod parser(buf)¶

Decode a protocol header.

This method is used only when decoding a packet.

Decode a protocol header at offset 0 in bytearray buf. Returns the following three objects.

• An object to describe the decoded header.
• A packet_base.PacketBase subclass appropriate for the rest of the packet. None when the rest of the packet should be considered as raw payload.
• The rest of packet.

serialize(payload=None, prev=None)¶

Encode a protocol header.

This method is used only when encoding a packet.

Encode a protocol header. Returns a bytearray which contains the header.

payload is the rest of the packet which will immediately follow this header.

prev is a packet_base.PacketBase subclass for the outer protocol header. prev is None if the current header is the outer-most. For example, prev is ipv4 or ipv6 for tcp.serialize.

os_ken.lib.packet.ospf.ospf¶

alias of os_ken.lib.packet.ospf.OSPFMessage