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from ipaddress import IPv4Address, AddressValueError
from vpp_object import VppObject
class AuthMethod:
v = {"rsa-sig": 1, "shared-key": 2}
@staticmethod
def value(key):
return AuthMethod.v[key]
class IDType:
v = {"ip4-addr": 1, "fqdn": 2, "ip6-addr": 5}
@staticmethod
def value(key):
return IDType.v[key]
class Profile(VppObject):
"""IKEv2 profile"""
def __init__(self, test, profile_name):
self.test = test
self.vapi = test.vapi
self.profile_name = profile_name
self.udp_encap = False
self.natt = True
def disable_natt(self):
self.natt = False
def add_auth(self, method, data, is_hex=False):
if isinstance(method, int):
m = method
elif isinstance(method, str):
m = AuthMethod.value(method)
else:
raise Exception("unsupported type {}".format(method))
self.auth = {"auth_method": m, "data": data, "is_hex": is_hex}
def add_local_id(self, id_type, data):
if isinstance(id_type, str):
t = IDType.value(id_type)
self.local_id = {"id_type": t, "data": data, "is_local": True}
def add_remote_id(self, id_type, data):
if isinstance(id_type, str):
t = IDType.value(id_type)
self.remote_id = {"id_type": t, "data": data, "is_local": False}
def add_local_ts(
self, start_addr, end_addr, start_port=0, end_port=0xFFFF, proto=0, is_ip4=True
):
self.ts_is_ip4 = is_ip4
self.local_ts = {
"is_local": True,
"protocol_id": proto,
"start_port": start_port,
"end_port": end_port,
"start_addr": start_addr,
"end_addr": end_addr,
}
def add_remote_ts(
self, start_addr, end_addr, start_port=0, end_port=0xFFFF, proto=0
):
try:
IPv4Address(start_addr)
is_ip4 = True
except AddressValueError:
is_ip4 = False
self.ts_is_ip4 = is_ip4
self.remote_ts = {
"is_local": False,
"protocol_id": proto,
"start_port": start_port,
"end_port": end_port,
"start_addr": start_addr,
"end_addr": end_addr,
}
def add_responder_hostname(self, hn):
self.responder_hostname = hn
def add_responder(self, responder):
self.responder = responder
def add_ike_transforms(self, tr):
self.ike_transforms = tr
def add_esp_transforms(self, tr):
self.esp_transforms = tr
def set_udp_encap(self, udp_encap):
self.udp_encap = udp_encap
def set_lifetime_data(self, data):
self.lifetime_data = data
def set_ipsec_over_udp_port(self, port):
self.ipsec_udp_port = {"is_set": 1, "port": port}
def set_tunnel_interface(self, sw_if_index):
self.tun_itf = sw_if_index
def object_id(self):
return "ikev2-profile-%s" % self.profile_name
def remove_vpp_config(self):
self.vapi.ikev2_profile_add_del(name=self.profile_name, is_add=False)
def add_vpp_config(self):
self.vapi.ikev2_profile_add_del(name=self.profile_name, is_add=True)
if hasattr(self, "auth"):
self.vapi.ikev2_profile_set_auth(
name=self.profile_name, data_len=len(self.auth["data"]), **self.auth
)
if hasattr(self, "local_id"):
self.vapi.ikev2_profile_set_id(
name=self.profile_name,
data_len=len(self.local_id["data"]),
**self.local_id,
)
if hasattr(self, "remote_id"):
self.vapi.ikev2_profile_set_id(
name=self.profile_name,
data_len=len(self.remote_id["data"]),
**self.remote_id,
)
if hasattr(self, "local_ts"):
self.vapi.ikev2_profile_set_ts(name=self.profile_name, ts=self.local_ts)
if hasattr(self, "remote_ts"):
self.vapi.ikev2_profile_set_ts(name=self.profile_name, ts=self.remote_ts)
if hasattr(self, "responder"):
self.vapi.ikev2_set_responder(
name=self.profile_name, responder=self.responder
)
if hasattr(self, "responder_hostname"):
print(self.responder_hostname)
self.vapi.ikev2_set_responder_hostname(
name=self.profile_name, **self.responder_hostname
)
if hasattr(self, "ike_transforms"):
self.vapi.ikev2_set_ike_transforms(
name=self.profile_name, tr=self.ike_transforms
)
if hasattr(self, "esp_transforms"):
self.vapi.ikev2_set_esp_transforms(
name=self.profile_name, tr=self.esp_transforms
)
if self.udp_encap:
self.vapi.ikev2_profile_set_udp_encap(name=self.profile_name)
if hasattr(self, "lifetime_data"):
self.vapi.ikev2_set_sa_lifetime(
name=self.profile_name, **self.lifetime_data
)
if hasattr(self, "ipsec_udp_port"):
self.vapi.ikev2_profile_set_ipsec_udp_port(
name=self.profile_name, **self.ipsec_udp_port
)
if hasattr(self, "tun_itf"):
self.vapi.ikev2_set_tunnel_interface(
name=self.profile_name, sw_if_index=self.tun_itf
)
if not self.natt:
self.vapi.ikev2_profile_disable_natt(name=self.profile_name)
def query_vpp_config(self):
res = self.vapi.ikev2_profile_dump()
for r in res:
if r.profile.name == self.profile_name:
return r.profile
return None
|
