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r: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */ } 
from trex_stl_lib.api import *

class STLS1:

    def create_stream (self):
        base_pkt = Ether()/IP(dst="2.2.0.1")/UDP(dport=12)

        pad = Padding()
        if len(base_pkt) < 64:
            pad_len = 64 - len(base_pkt)
            pad.load = '\x00' * pad_len

        vm = STLVM()

        vm.tuple_var(name="tuple", ip_min="10.0.0.3", ip_max="10.1.134.162", port_min=1025, port_max=1124, limit_flows=10000000)

        vm.write(fv_name="tuple.ip", pkt_offset="IP.src")
        vm.fix_chksum()

        vm.write(fv_name="tuple.port", pkt_offset="UDP.sport")

        pkt = STLPktBuilder(pkt=base_pkt/pad, vm=vm)

        return STLStream(packet=pkt, mode=STLTXCont())

    def get_streams (self, direction = 0, **kwargs):
        return [self.create_stream()]


# dynamic load - used for trex console or simulator
def register():
    return STLS1()