1 from scapy.layers.l2 import Dot1Q
4 from vpp_pg_interface import VppPGInterface
5 from vpp_papi_provider import L2_VTR_OP
6 from vpp_interface import VppInterface
9 @six.add_metaclass(abc.ABCMeta)
10 class VppSubInterface(VppPGInterface):
14 """Parent interface for this sub-interface"""
19 """Sub-interface ID"""
34 def __init__(self, test, parent, sub_id):
35 VppInterface.__init__(self, test)
37 self._parent.add_sub_if(self)
39 self.DOT1AD_TYPE = 0x88A8
40 self.DOT1Q_TYPE = 0x8100
42 def set_sw_if_index(self, sw_if_index):
43 super(VppSubInterface, self).set_sw_if_index(sw_if_index)
44 self.set_vtr(L2_VTR_OP.L2_DISABLED)
47 def create_arp_req(self):
51 def create_ndp_req(self):
54 def resolve_arp(self):
55 super(VppSubInterface, self).resolve_arp(self.parent)
57 def resolve_ndp(self):
58 super(VppSubInterface, self).resolve_ndp(self.parent)
61 def add_dot1_layer(self, pkt):
64 def remove_vpp_config(self):
65 self.test.vapi.delete_subif(self.sw_if_index)
67 def _add_tag(self, packet, vlan, tag_type):
68 payload = packet.payload
69 inner_type = packet.type
70 packet.remove_payload()
71 packet.add_payload(Dot1Q(vlan=vlan) / payload)
72 packet.payload.type = inner_type
73 packet.payload.vlan = vlan
74 packet.type = tag_type
77 def _remove_tag(self, packet, vlan=None, tag_type=None):
79 self.test.instance().assertEqual(packet.type, tag_type)
81 payload = packet.payload
83 self.test.instance().assertEqual(payload.vlan, vlan)
84 inner_type = payload.type
85 payload = payload.payload
86 packet.remove_payload()
87 packet.add_payload(payload)
88 packet.type = inner_type
91 def add_dot1q_layer(self, packet, vlan):
92 return self._add_tag(packet, vlan, self.DOT1Q_TYPE)
94 def add_dot1ad_layer(self, packet, outer, inner):
95 p = self._add_tag(packet, inner, self.DOT1Q_TYPE)
96 return self._add_tag(p, outer, self.DOT1AD_TYPE)
98 def remove_dot1q_layer(self, packet, vlan=None):
99 return self._remove_tag(packet, vlan, self.DOT1Q_TYPE)
101 def remove_dot1ad_layer(self, packet, outer=None, inner=None):
102 p = self._remove_tag(packet, outer, self.DOT1AD_TYPE)
103 return self._remove_tag(p, inner, self.DOT1Q_TYPE)
105 def set_vtr(self, vtr, push1q=0, tag=None, inner=None, outer=None):
110 if (vtr == L2_VTR_OP.L2_PUSH_1 or
111 vtr == L2_VTR_OP.L2_TRANSLATE_1_1 or
112 vtr == L2_VTR_OP.L2_TRANSLATE_2_1):
114 self._push1q = push1q
115 if (vtr == L2_VTR_OP.L2_PUSH_2 or
116 vtr == L2_VTR_OP.L2_TRANSLATE_1_2 or
117 vtr == L2_VTR_OP.L2_TRANSLATE_2_2):
120 self._push1q = push1q
122 self.test.vapi.l2_interface_vlan_tag_rewrite(
123 sw_if_index=self.sw_if_index, vtr_op=vtr, push_dot1q=self._push1q,
124 tag1=self._tag1, tag2=self._tag2)
128 class VppDot1QSubint(VppSubInterface):
135 def __init__(self, test, parent, sub_id, vlan=None):
136 super(VppDot1QSubint, self).__init__(test, parent, sub_id)
140 r = test.vapi.create_vlan_subif(parent.sw_if_index, vlan)
141 self.set_sw_if_index(r.sw_if_index)
143 def create_arp_req(self):
144 packet = VppPGInterface.create_arp_req(self)
145 return self.add_dot1_layer(packet)
147 def create_ndp_req(self):
148 packet = VppPGInterface.create_ndp_req(self)
149 return self.add_dot1_layer(packet)
151 # called before sending packet
152 def add_dot1_layer(self, packet):
153 return self.add_dot1q_layer(packet, self.vlan)
155 # called on received packet to "reverse" the add call
156 def remove_dot1_layer(self, packet):
157 return self.remove_dot1q_layer(packet, self.vlan)
160 class VppDot1ADSubint(VppSubInterface):
163 def outer_vlan(self):
165 return self._outer_vlan
168 def inner_vlan(self):
170 return self._inner_vlan
172 def __init__(self, test, parent, sub_id, outer_vlan, inner_vlan):
173 super(VppDot1ADSubint, self).__init__(test, parent, sub_id)
174 r = test.vapi.create_subif(sw_if_index=parent.sw_if_index,
175 sub_id=sub_id, outer_vlan_id=outer_vlan,
176 inner_vlan_id=inner_vlan, two_tags=1,
177 dot1ad=1, exact_match=1)
178 self.set_sw_if_index(r.sw_if_index)
179 self._outer_vlan = outer_vlan
180 self._inner_vlan = inner_vlan
182 def create_arp_req(self):
183 packet = VppPGInterface.create_arp_req(self)
184 return self.add_dot1_layer(packet)
186 def create_ndp_req(self):
187 packet = VppPGInterface.create_ndp_req(self)
188 return self.add_dot1_layer(packet)
190 def add_dot1_layer(self, packet):
191 return self.add_dot1ad_layer(packet, self.outer_vlan, self.inner_vlan)
193 def remove_dot1_layer(self, packet):
194 return self.remove_dot1ad_layer(packet, self.outer_vlan,
198 class VppP2PSubint(VppSubInterface):
200 def __init__(self, test, parent, sub_id, remote_mac):
201 super(VppP2PSubint, self).__init__(test, parent, sub_id)
202 r = test.vapi.p2p_ethernet_add(parent.sw_if_index,
204 self.set_sw_if_index(r.sw_if_index)
205 self.parent_sw_if_index = parent.sw_if_index
206 self.p2p_remote_mac = remote_mac
208 def add_dot1_layer(self, packet):
211 def remove_dot1_layer(self, packet):
214 def create_arp_req(self):
215 packet = VppPGInterface.create_arp_req(self)
218 def create_ndp_req(self):
219 packet = VppPGInterface.create_ndp_req(self)