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from trex_stl_lib.api import *
class STLS1(object):
""" attack 48.0.0.1 at port 80
"""
def __init__ (self):
self.max_pkt_size_l3 =9*1024;
def create_stream (self):
# TCP SYN
base_pkt = Ether()/IP(dst="48.0.0.1")/TCP(dport=80,flags="S")
# vm
vm = STLScVmRaw( [ STLVmFlowVar(name="ip_src",
min_value="16.0.0.0",
max_value="18.0.0.254",
size=4, op="random"),
STLVmFlowVar(name="src_port",
min_value=1025,
max_value=65000,
size=2, op="random"),
STLVmWrFlowVar(fv_name="ip_src", pkt_offset= "IP.src" ),
STLVmFixIpv4(offset = "IP"), # fix checksum
STLVmWrFlowVar(fv_name="src_port",
pkt_offset= "TCP.sport") # fix udp len
]
)
pkt = STLPktBuilder(pkt = base_pkt,
vm = vm)
return STLStream(packet = pkt,
random_seed = 0x1234,# can be remove. will give the same random value any run
mode = STLTXCont())
def get_streams (self, direction = 0, **kwargs):
# create 1 stream
return [ self.create_stream() ]
# dynamic load - used for trex console or simulator
def register():
return STLS1()
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