+ def remove_vpp_config(self):
+ self.test.vapi.delete_subif(self.sw_if_index)
+
+ def _add_tag(self, packet, vlan, tag_type):
+ payload = packet.payload
+ inner_type = packet.type
+ packet.remove_payload()
+ packet.add_payload(Dot1Q(vlan=vlan) / payload)
+ packet.payload.type = inner_type
+ packet.payload.vlan = vlan
+ packet.type = tag_type
+ return packet
+
+ def _remove_tag(self, packet, vlan=None, tag_type=None):
+ if tag_type:
+ self.test.instance().assertEqual(packet.type, tag_type)
+
+ payload = packet.payload
+ if vlan:
+ self.test.instance().assertEqual(payload.vlan, vlan)
+ inner_type = payload.type
+ payload = payload.payload
+ packet.remove_payload()
+ packet.add_payload(payload)
+ packet.type = inner_type
+ return packet
+
+ def add_dot1q_layer(self, packet, vlan):
+ return self._add_tag(packet, vlan, self.DOT1Q_TYPE)
+
+ def add_dot1ad_layer(self, packet, outer, inner):
+ p = self._add_tag(packet, inner, self.DOT1Q_TYPE)
+ return self._add_tag(p, outer, self.DOT1AD_TYPE)
+
+ def remove_dot1q_layer(self, packet, vlan=None):
+ return self._remove_tag(packet, vlan, self.DOT1Q_TYPE)
+
+ def remove_dot1ad_layer(self, packet, outer=None, inner=None):
+ p = self._remove_tag(packet, outer, self.DOT1AD_TYPE)
+ return self._remove_tag(p, inner, self.DOT1Q_TYPE)
+
+ def set_vtr(self, vtr, push1q=0, tag=None, inner=None, outer=None):
+ self._tag1 = 0
+ self._tag2 = 0
+ self._push1q = 0
+
+ if (vtr == L2_VTR_OP.L2_PUSH_1 or
+ vtr == L2_VTR_OP.L2_TRANSLATE_1_1 or
+ vtr == L2_VTR_OP.L2_TRANSLATE_2_1):
+ self._tag1 = tag
+ self._push1q = push1q
+ if (vtr == L2_VTR_OP.L2_PUSH_2 or
+ vtr == L2_VTR_OP.L2_TRANSLATE_1_2 or
+ vtr == L2_VTR_OP.L2_TRANSLATE_2_2):
+ self._tag1 = outer
+ self._tag2 = inner
+ self._push1q = push1q
+
+ self.test.vapi.l2_interface_vlan_tag_rewrite(
+ sw_if_index=self.sw_if_index, vtr_op=vtr, push_dot1q=self._push1q,
+ tag1=self._tag1, tag2=self._tag2)
+ self._vtr = vtr
+