1 from scapy.layers.l2 import Dot1Q
2 from abc import abstractmethod, ABCMeta
3 from vpp_interface import VppInterface
4 from vpp_pg_interface import VppPGInterface
5 from vpp_papi_provider import L2_VTR_OP
8 class VppSubInterface(VppPGInterface):
9 __metaclass__ = ABCMeta
13 """Parent interface for this sub-interface"""
18 """Sub-interface ID"""
33 def __init__(self, test, parent, sub_id):
34 VppInterface.__init__(self, test)
36 self._parent.add_sub_if(self)
38 self.set_vtr(L2_VTR_OP.L2_DISABLED)
39 self.DOT1AD_TYPE = 0x88A8
40 self.DOT1Q_TYPE = 0x8100
43 def create_arp_req(self):
47 def create_ndp_req(self):
50 def resolve_arp(self):
51 super(VppSubInterface, self).resolve_arp(self.parent)
53 def resolve_ndp(self):
54 super(VppSubInterface, self).resolve_ndp(self.parent)
57 def add_dot1_layer(self, pkt):
60 def remove_vpp_config(self):
61 self.test.vapi.delete_subif(self._sw_if_index)
63 def _add_tag(self, packet, vlan, tag_type):
64 payload = packet.payload
65 inner_type = packet.type
66 packet.remove_payload()
67 packet.add_payload(Dot1Q(vlan=vlan) / payload)
68 packet.payload.type = inner_type
69 packet.payload.vlan = vlan
70 packet.type = tag_type
73 def _remove_tag(self, packet, vlan=None, tag_type=None):
75 self.test.instance().assertEqual(packet.type, tag_type)
77 payload = packet.payload
79 self.test.instance().assertEqual(payload.vlan, vlan)
80 inner_type = payload.type
81 payload = payload.payload
82 packet.remove_payload()
83 packet.add_payload(payload)
84 packet.type = inner_type
87 def add_dot1q_layer(self, packet, vlan):
88 return self._add_tag(packet, vlan, self.DOT1Q_TYPE)
90 def add_dot1ad_layer(self, packet, outer, inner):
91 p = self._add_tag(packet, inner, self.DOT1Q_TYPE)
92 return self._add_tag(p, outer, self.DOT1AD_TYPE)
94 def remove_dot1q_layer(self, packet, vlan=None):
95 return self._remove_tag(packet, vlan, self.DOT1Q_TYPE)
97 def remove_dot1ad_layer(self, packet, outer=None, inner=None):
98 p = self._remove_tag(packet, outer, self.DOT1AD_TYPE)
99 return self._remove_tag(p, inner, self.DOT1Q_TYPE)
101 def set_vtr(self, vtr, push1q=0, tag=None, inner=None, outer=None):
106 if (vtr == L2_VTR_OP.L2_PUSH_1 or
107 vtr == L2_VTR_OP.L2_TRANSLATE_1_1 or
108 vtr == L2_VTR_OP.L2_TRANSLATE_2_1):
110 self._push1q = push1q
111 if (vtr == L2_VTR_OP.L2_PUSH_2 or
112 vtr == L2_VTR_OP.L2_TRANSLATE_1_2 or
113 vtr == L2_VTR_OP.L2_TRANSLATE_2_2):
116 self._push1q = push1q
118 self.test.vapi.sw_interface_set_l2_tag_rewrite(
119 self.sw_if_index, vtr, push=self._push1q,
120 tag1=self._tag1, tag2=self._tag2)
124 class VppDot1QSubint(VppSubInterface):
131 def __init__(self, test, parent, sub_id, vlan=None):
135 r = test.vapi.create_vlan_subif(parent.sw_if_index, vlan)
136 self._sw_if_index = r.sw_if_index
137 super(VppDot1QSubint, self).__init__(test, parent, sub_id)
139 def create_arp_req(self):
140 packet = VppPGInterface.create_arp_req(self)
141 return self.add_dot1_layer(packet)
143 def create_ndp_req(self):
144 packet = VppPGInterface.create_ndp_req(self)
145 return self.add_dot1_layer(packet)
147 # called before sending packet
148 def add_dot1_layer(self, packet):
149 return self.add_dot1q_layer(packet, self.vlan)
151 # called on received packet to "reverse" the add call
152 def remove_dot1_layer(self, packet):
153 return self.remove_dot1q_layer(packet, self.vlan)
156 class VppDot1ADSubint(VppSubInterface):
159 def outer_vlan(self):
161 return self._outer_vlan
164 def inner_vlan(self):
166 return self._inner_vlan
168 def __init__(self, test, parent, sub_id, outer_vlan, inner_vlan):
169 r = test.vapi.create_subif(parent.sw_if_index, sub_id, outer_vlan,
170 inner_vlan, dot1ad=1, two_tags=1,
172 self._sw_if_index = r.sw_if_index
173 self._outer_vlan = outer_vlan
174 self._inner_vlan = inner_vlan
175 super(VppDot1ADSubint, self).__init__(test, parent, sub_id)
177 def create_arp_req(self):
178 packet = VppPGInterface.create_arp_req(self)
179 return self.add_dot1_layer(packet)
181 def create_ndp_req(self):
182 packet = VppPGInterface.create_ndp_req(self)
183 return self.add_dot1_layer(packet)
185 def add_dot1_layer(self, packet):
186 return self.add_dot1ad_layer(packet, self.outer_vlan, self.inner_vlan)
188 def remove_dot1_layer(self, packet):
189 return self.remove_dot1ad_layer(packet, self.outer_vlan,
193 class VppP2PSubint(VppSubInterface):
195 def __init__(self, test, parent, sub_id, remote_mac):
196 r = test.vapi.create_p2pethernet_subif(parent.sw_if_index,
198 self._sw_if_index = r.sw_if_index
199 super(VppP2PSubint, self).__init__(test, parent, sub_id)
201 def add_dot1_layer(self, packet):
204 def remove_dot1_layer(self, packet):
207 def create_arp_req(self):
208 packet = VppPGInterface.create_arp_req(self)
211 def create_ndp_req(self):
212 packet = VppPGInterface.create_ndp_req(self)