def __parse_flow_match(self, flow_match):
parts = flow_match.split(" ")
match = wildcard_create_bit_repeat(self.format["length"], 3)
num_fields = 0
for part in parts:
if not part.startswith("priority") and part != "":
fv = part.split("=")
field = fv[0]
value = fv[1]
if field == "dl_src" or field == "dl_dst":
'''
m = mac_to_int(value)
if m != 0:
set_header_field(self.format, match, field, m, 0)
'''
pass
elif field == "nw_src" or field == "nw_dst":
num_fields += 1
(ip, subnet) = dotted_subnet_to_int(value)
set_header_field(self.format, match, field, ip,
32 - subnet)
elif field == "nw_tos":
num_fields += 1
set_header_field(self.format, match, field, int(value), 0)
elif field == "dl_type":
num_fields += 1
set_header_field(self.format, match, field,
l2_proto_to_int(value), 0)
if num_fields > 0:
return match
else:
return None
def __parse_flow_match(self,flow_match):
parts = flow_match.split(" ")
match = wildcard_create_bit_repeat(self.format["length"],3)
num_fields = 0
for part in parts:
if not part.startswith("priority") and part != "":
fv = part.split("=")
field = fv[0]
value = fv[1]
if field == "dl_src" or field=="dl_dst":
'''
m = mac_to_int(value)
if m != 0:
set_header_field(self.format, match, field, m, 0)
'''
pass
elif field == "nw_src" or field == "nw_dst":
num_fields += 1
(ip,subnet) = dotted_subnet_to_int(value)
set_header_field(self.format, match, field, ip, 32-subnet)
elif field == "nw_tos":
num_fields += 1
set_header_field(self.format, match, field, int(value), 0)
elif field == "dl_type":
num_fields += 1
set_header_field(self.format, match, field, l2_proto_to_int(value), 0)
if num_fields > 0:
return match
else:
return None
def parse_new_rule_tokens(tokens, mapf, rtr):
in_ports = []
out_ports = []
match = wildcard_create_bit_repeat(HS_FORMAT["length"], 0x3)
mask = None
rw = None
for token in tokens:
parts = token.split("=")
field_name = parts[0]
if field_name.startswith("new"):
if mask == None:
mask = wildcard_create_bit_repeat(HS_FORMAT["length"], 0x2)
rw = wildcard_create_bit_repeat(HS_FORMAT["length"], 0x1)
field_name = field_name[4:]
if field_name in ["ip_src", "ip_dst"]:
[value, left_mask] = dotted_subnet_to_int(parts[1])
right_mask = 32 - left_mask
else:
value = int(parts[1])
right_mask = 0
set_header_field(cisco_router.HS_FORMAT(), mask, field_name, 0,
right_mask)
set_header_field(cisco_router.HS_FORMAT(), rw, field_name,
value, right_mask)
else:
if field_name in ["in_ports", "out_ports"]:
ports = parts[1].split(",")
ports_int = []
for port in ports:
ports_int.append(int(mapf[rtr][port]))
if field_name == "in_ports":
in_ports = ports_int
else:
out_ports = ports_int
else:
if field_name in ["ip_src", "ip_dst"]:
[value, left_mask] = dotted_subnet_to_int(parts[1])
right_mask = 32 - left_mask
else:
value = int(parts[1])
right_mask = 0
set_header_field(cisco_router.HS_FORMAT(), match, field_name,
value, right_mask)
rule = TF.create_standard_rule(in_ports, match, out_ports, mask, rw, "",
[])
return rule
def parse_new_rule_tokens(tokens,mapf,rtr):
in_ports = []
out_ports = []
match = wildcard_create_bit_repeat(HS_FORMAT["length"],0x3)
mask = None
rw = None
for token in tokens:
parts = token.split("=")
field_name = parts[0]
if field_name.startswith("new"):
if mask == None:
mask = wildcard_create_bit_repeat(HS_FORMAT["length"],0x2)
rw = wildcard_create_bit_repeat(HS_FORMAT["length"],0x1)
field_name = field_name[4:]
if field_name in ["ip_src","ip_dst"]:
[value,left_mask] = dotted_subnet_to_int(parts[1])
right_mask = 32 - left_mask
else:
value = int(parts[1])
right_mask = 0
set_header_field(cisco_router.HS_FORMAT(), mask, field_name, 0, right_mask)
set_header_field(cisco_router.HS_FORMAT(), rw, field_name, value, right_mask)
else:
if field_name in ["in_ports","out_ports"]:
ports = parts[1].split(",")
ports_int = []
for port in ports:
ports_int.append(int(mapf[rtr][port]))
if field_name == "in_ports":
in_ports = ports_int
else:
out_ports = ports_int
else:
if field_name in ["ip_src","ip_dst"]:
[value,left_mask] = dotted_subnet_to_int(parts[1])
right_mask = 32 - left_mask
else:
value = int(parts[1])
right_mask = 0
set_header_field(cisco_router.HS_FORMAT(), match, field_name, value, right_mask)
rule = TF.create_standard_rule(in_ports, match, out_ports, mask, rw, "", [])
return rule
def make_header(h_desc):
all_x = wildcard_create_bit_repeat(cisco_router.HS_FORMAT()["length"],0x3)
parts = h_desc.split(",")
fields = ["vlan", "ip_src", "ip_dst", "ip_proto", "transport_src", "transport_dst"]
for part in parts:
tmp = part.split("=")
field = tmp[0]
value = tmp[1]
if field in ["ip_src","ip_dst"]:
(ip,sub) = dotted_subnet_to_int(value)
set_header_field(cisco_router.HS_FORMAT(), all_x, field, ip, 32-sub)
else:
set_header_field(cisco_router.HS_FORMAT(), all_x, field, int(value), 0)
return all_x
def make_header(h_desc):
all_x = wildcard_create_bit_repeat(cisco_router.HS_FORMAT()["length"],0x3)
parts = h_desc.split(",")
fields = ["vlan", "ip_src", "ip_dst", "ip_proto", "transport_src", "transport_dst"]
for part in parts:
tmp = part.split("=")
field = tmp[0]
value = tmp[1]
if field in ["ip_src","ip_dst"]:
(ip,sub) = dotted_subnet_to_int(value)
set_header_field(cisco_router.HS_FORMAT(), all_x, field, ip, 32-sub)
else:
set_header_field(cisco_router.HS_FORMAT(), all_x, field, int(value), 0)
return all_x
