src/plugins/nat/extras/nat_out2in_100ks.py

   1 from trex_stl_lib.api import *
   2
   3 class STLS1:
   4
   5     def create_stream (self):
   6         base_pkt = Ether()/IP(src="2.2.0.1")/UDP(sport=12)
   7
   8         pad = Padding()
   9         if len(base_pkt) < 64:
  10             pad_len = 64 - len(base_pkt)
  11             pad.load = '\x00' * pad_len
  12
  13         vm = STLVM()
  14
  15         vm.tuple_var(name="tuple", ip_min="173.16.1.3", ip_max="173.16.4.234", port_min=1025, port_max=1124, limit_flows = 100000)
  16
  17         vm.write(fv_name="tuple.ip", pkt_offset="IP.dst")
  18         vm.fix_chksum()
  19
  20         vm.write(fv_name="tuple.port", pkt_offset="UDP.dport")
  21
  22         pkt = STLPktBuilder(pkt=base_pkt/pad, vm=vm)
  23
  24         return STLStream(packet=pkt, mode=STLTXCont())
  25
  26     def get_streams (self, direction = 0, **kwargs):
  27         return [self.create_stream()]
  28
  29
  30 # dynamic load - used for trex console or simulator
  31 def register():
  32     return STLS1()
  33
  34
  35