ostinato.protocols.tcp_pb2 module¶

Configure TCP protocol attributes for packet stream customization in Ostinato. Access and set parameters such as source and destination ports, sequence numbers, checksums, flags, and more using the Tcp object

To add and configure Tcp in a stream, add a protocol to the stream, set the protocol id to ost_pb.Protocol.kTcpFieldNumber and access the Tcp object from the Protocol object's Extensions dictionary using the key tcp_pb2.tcp

from ostinato.protocols import tcp_pb2
...
# stream is an object of type ost_pb.Stream
proto = stream.protocol.add()
proto.protocol_id.id = ost_pb.Protocol.kTcpFieldNumber
my_tcp = proto.Extensions[tcp_pb2.tcp]

You can then set Tcp attributes using my_tcp.<attribute>

Tcp class¶

Class attributes¶

is_override_src_port¶

Tcp.is_override_src_port : boolean

Optional. If not set, defaults to False.

is_override_dst_port¶

Tcp.is_override_dst_port : boolean

Optional. If not set, defaults to False.

is_override_hdrlen¶

Tcp.is_override_hdrlen : boolean

Optional. If not set, defaults to False.

is_override_cksum¶

Tcp.is_override_cksum : boolean

Optional. If not set, defaults to False.

src_port¶

Tcp.src_port : long

Optional. If not set, defaults to 49152.

dst_port¶

Tcp.dst_port : long

Optional. If not set, defaults to 49153.

seq_num¶

Tcp.seq_num : long

Optional. If not set, defaults to 129018.

ack_num¶

Tcp.ack_num : long

Optional. If not set, defaults to 0.

hdrlen_rsvd¶

Tcp.hdrlen_rsvd : long

Optional. If not set, defaults to 80.

flags¶

Tcp.flags : long

Optional. If not set, defaults to 0.

window¶

Tcp.window : long

Optional. If not set, defaults to 1024.

cksum¶

Tcp.cksum : long

Optional. If not set, defaults to 0.

urg_ptr¶

Tcp.urg_ptr : long

Optional. If not set, defaults to 0.