1 from trex_stl_lib.api import *
6 self.ip_range = {'local': {'start': "10.0.0.3", 'end': "10.1.255.255"},
7 'external': {'start': "172.16.1.3", 'end': "172.16.1.3"},
8 'remote': {'start': "2.2.0.1", 'end': "2.2.0.1"}}
9 self.port_range = {'local': {'start': 1025, 'end': 65535},
10 'remote': {'start': 12, 'end': 12}}
12 def create_stream (self, vm):
13 base_pkt = Ether()/IP()/UDP()
15 if len(base_pkt) < 64:
16 pad_len = 64 - len(base_pkt)
18 pad.load = '\x00' * pad_len
19 base_pkt = base_pkt/pad
21 pkt = STLPktBuilder(pkt=base_pkt, vm=vm)
22 return STLStream(packet=pkt, mode=STLTXCont())
24 def get_streams (self, direction = 0, **kwargs):
26 ip_src = self.ip_range['remote']
27 ip_dst = self.ip_range['external']
28 src_port = self.port_range['remote']
29 dst_port = self.port_range['local']
31 ip_src = self.ip_range['local']
32 ip_dst = self.ip_range['remote']
33 src_port = self.port_range['local']
34 dst_port = self.port_range['remote']
38 vm.var(name="ip_src", min_value=ip_src['start'], max_value=ip_src['end'], size=4, op="random")
39 vm.var(name="ip_dst", min_value=ip_dst['start'], max_value=ip_dst['end'], size=4, op="random")
40 vm.var(name="src_port", min_value=src_port['start'], max_value=src_port['end'], size=2, op="random")
41 vm.var(name="dst_port", min_value=dst_port['start'], max_value=dst_port['end'], size=2, op="random")
43 vm.write(fv_name="ip_src", pkt_offset="IP.src")
44 vm.write(fv_name="ip_dst", pkt_offset="IP.dst")
45 vm.write(fv_name="src_port", pkt_offset="UDP.sport")
46 vm.write(fv_name="dst_port", pkt_offset="UDP.dport")
50 return [ self.create_stream(vm) ]
53 # dynamic load - used for trex console or simulator