diff options
Diffstat (limited to 'vpp/test/vpp_sub_interface.py')
-rw-r--r-- | vpp/test/vpp_sub_interface.py | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/vpp/test/vpp_sub_interface.py b/vpp/test/vpp_sub_interface.py new file mode 100644 index 00000000..b4c415ca --- /dev/null +++ b/vpp/test/vpp_sub_interface.py @@ -0,0 +1,140 @@ +from scapy.layers.l2 import Ether, Dot1Q +from abc import abstractmethod, ABCMeta +from vpp_interface import VppInterface +from vpp_pg_interface import VppPGInterface + + +class VppSubInterface(VppPGInterface): + __metaclass__ = ABCMeta + + @property + def parent(self): + """Parent interface for this sub-interface""" + return self._parent + + @property + def sub_id(self): + """Sub-interface ID""" + return self._sub_id + + def __init__(self, test, parent, sub_id): + VppInterface.__init__(self, test) + self._parent = parent + self._parent.add_sub_if(self) + self._sub_id = sub_id + + @abstractmethod + def create_arp_req(self): + pass + + @abstractmethod + def create_ndp_req(self): + pass + + def resolve_arp(self): + super(VppSubInterface, self).resolve_arp(self.parent) + + def resolve_ndp(self): + super(VppSubInterface, self).resolve_ndp(self.parent) + + @abstractmethod + def add_dot1_layer(self, pkt): + pass + + def remove_vpp_config(self): + self.test.vapi.delete_subif(self._sw_if_index) + + +class VppDot1QSubint(VppSubInterface): + + @property + def vlan(self): + """VLAN tag""" + return self._vlan + + def __init__(self, test, parent, sub_id, vlan=None): + if vlan is None: + vlan = sub_id + self._vlan = vlan + r = test.vapi.create_vlan_subif(parent.sw_if_index, vlan) + self._sw_if_index = r.sw_if_index + super(VppDot1QSubint, self).__init__(test, parent, sub_id) + + def create_arp_req(self): + packet = VppPGInterface.create_arp_req(self) + return self.add_dot1_layer(packet) + + def create_ndp_req(self): + packet = VppPGInterface.create_ndp_req(self) + return self.add_dot1_layer(packet) + + def add_dot1_layer(self, packet): + payload = packet.payload + packet.remove_payload() + packet.add_payload(Dot1Q(vlan=self.sub_id) / payload) + return packet + + def remove_dot1_layer(self, packet): + payload = packet.payload + self.test.instance().assertEqual(type(payload), Dot1Q) + self.test.instance().assertEqual(payload.vlan, self.vlan) + payload = payload.payload + packet.remove_payload() + packet.add_payload(payload) + return packet + + +class VppDot1ADSubint(VppSubInterface): + + @property + def outer_vlan(self): + """Outer VLAN tag""" + return self._outer_vlan + + @property + def inner_vlan(self): + """Inner VLAN tag""" + return self._inner_vlan + + def __init__(self, test, parent, sub_id, outer_vlan, inner_vlan): + r = test.vapi.create_subif(parent.sw_if_index, sub_id, outer_vlan, + inner_vlan, dot1ad=1, two_tags=1, + exact_match=1) + self._sw_if_index = r.sw_if_index + super(VppDot1ADSubint, self).__init__(test, parent, sub_id) + self.DOT1AD_TYPE = 0x88A8 + self.DOT1Q_TYPE = 0x8100 + self._outer_vlan = outer_vlan + self._inner_vlan = inner_vlan + + def create_arp_req(self): + packet = VppPGInterface.create_arp_req(self) + return self.add_dot1_layer(packet) + + def create_ndp_req(self): + packet = VppPGInterface.create_ndp_req(self) + return self.add_dot1_layer(packet) + + def add_dot1_layer(self, packet): + payload = packet.payload + packet.remove_payload() + packet.add_payload(Dot1Q(vlan=self.outer_vlan) / + Dot1Q(vlan=self.inner_vlan) / payload) + packet.type = self.DOT1AD_TYPE + return packet + + def remove_dot1_layer(self, packet): + self.test.instance().assertEqual(type(packet), Ether) + self.test.instance().assertEqual(packet.type, self.DOT1AD_TYPE) + packet.type = self.DOT1Q_TYPE + packet = Ether(str(packet)) + payload = packet.payload + self.test.instance().assertEqual(type(payload), Dot1Q) + self.test.instance().assertEqual(payload.vlan, self.outer_vlan) + payload = payload.payload + self.test.instance().assertEqual(type(payload), Dot1Q) + self.test.instance().assertEqual(payload.vlan, self.inner_vlan) + payload = payload.payload + packet.remove_payload() + packet.add_payload(payload) + return packet |