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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_tcp_syn (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" ),
STLVmWrFlowVar(fv_name="src_port",
pkt_offset= "TCP.sport"), # fix udp len
# must be last
STLVmFixChecksumHw(l3_offset = "IP",
l4_offset = "TCP",
l4_type = CTRexVmInsFixHwCs.L4_TYPE_TCP )# hint, TRex can know that
]
)
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 create_stream_udp1 (self):
# UDP packet
base_pkt = Ether()/IP(dst="48.0.0.1")/UDP(dport=80)/(30*'x')
# 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" ),
STLVmWrFlowVar(fv_name="src_port",
pkt_offset= "UDP.sport"), # fix udp len
# must be last
STLVmFixChecksumHw(l3_offset = "IP",
l4_offset = "UDP",
l4_type = CTRexVmInsFixHwCs.L4_TYPE_UDP )# hint, TRex can know that
]
)
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 create_stream_ipv6_tcp (self):
# UDP packet
base_pkt = Ether()/IPv6(dst="2001:0:4137:9350:8000:f12a:b9c8:2815",src="2001:4860:0:2001::68")/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 ="IPv6.src",offset_fixup=12 ),
STLVmWrFlowVar(fv_name="src_port",
pkt_offset= "TCP.sport"), # fix udp len
# must be last
STLVmFixChecksumHw(l3_offset = "IPv6",
l4_offset = "TCP",
l4_type = CTRexVmInsFixHwCs.L4_TYPE_TCP )# hint, TRex can know that
]
)
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 create_stream_ipv6_udp (self):
# UDP packet
base_pkt = Ether()/IPv6(dst="2001:0:4137:9350:8000:f12a:b9c8:2815",src="2001:4860:0:2001::68")/UDP(dport=80)
# 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 ="IPv6.src",offset_fixup=12 ),
STLVmWrFlowVar(fv_name="src_port",
pkt_offset= "UDP.sport"), # fix udp len
# must be last
STLVmFixChecksumHw(l3_offset = "IPv6",
l4_offset = "UDP",
l4_type = CTRexVmInsFixHwCs.L4_TYPE_UDP )# hint, TRex can know that
]
)
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 create_stream_not_valid (self):
# UDP packet
base_pkt = Ether()/IPv6(dst="2001:0:4137:9350:8000:f12a:b9c8:2815",src="2001:4860:0:2001::68")/UDP(dport=80)
# 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 ="IPv6.src",offset_fixup=12 ),
STLVmWrFlowVar(fv_name="src_port",
pkt_offset= "UDP.sport"), # fix udp len
# must be last
STLVmFixChecksumHw(l3_offset = "IPv6",
l4_offset = "IPv6", # not valid
l4_type = CTRexVmInsFixHwCs.L4_TYPE_UDP )# hint, TRex can know that
]
)
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 create_stream_udp_random (self):
# pkt
p_l2 = Ether();
p_l3 = IP(src="16.0.0.1",dst="48.0.0.1")
p_l4 = UDP(dport=12,sport=1025)
pyld_size = max(0, self.max_pkt_size_l3 - len(p_l3/p_l4));
base_pkt = p_l2/p_l3/p_l4/('\x55'*(pyld_size))
l3_len_fix =-(len(p_l2));
l4_len_fix =-(len(p_l2/p_l3));
# vm
vm = STLScVmRaw( [ STLVmFlowVar(name="fv_rand", min_value=64, max_value=len(base_pkt), size=2, op="random"),
STLVmTrimPktSize("fv_rand"), # total packet size
STLVmWrFlowVar(fv_name="fv_rand", pkt_offset= "IP.len", add_val=l3_len_fix), # fix ip len
STLVmWrFlowVar(fv_name="fv_rand", pkt_offset= "UDP.len", add_val=l4_len_fix), # fix udp len
STLVmFixChecksumHw(l3_offset = "IP",
l4_offset = "UDP", # not valid
l4_type = CTRexVmInsFixHwCs.L4_TYPE_UDP )# hint, TRex can know that
]
)
pkt = STLPktBuilder(pkt = base_pkt,
vm = vm)
return STLStream(packet = pkt,
random_seed = 0x1234,
mode = STLTXCont())
def get_streams (self, direction = 0, **kwargs):
# create 1 stream
#return [ self.create_stream_ipv6_udp(),self.create_stream_tcp_syn(), self.create_stream_udp1(),self.create_stream_ipv6_tcp()]
#return [ self.create_stream_udp_random () ]
return [ self.create_stream_tcp_syn()]
# dynamic load - used for trex console or simulator
def register():
return STLS1()
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