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from vpp_interface import VppInterface
from vpp_ip_route import VppRoutePath, VppMplsLabel
import socket
class VppMPLSTunnelInterface(VppInterface):
"""
VPP MPLS Tunnel interface
"""
def __init__(self, test, paths, is_multicast=0, is_l2=0):
""" Create MPLS Tunnel interface """
self._sw_if_index = 0
super(VppMPLSTunnelInterface, self).__init__(test)
self._test = test
self.t_paths = paths
self.is_multicast = is_multicast
self.is_l2 = is_l2
def add_vpp_config(self):
self._sw_if_index = 0xffffffff
for path in self.t_paths:
lstack = path.encode_labels()
reply = self.test.vapi.mpls_tunnel_add_del(
self._sw_if_index,
1, # IPv4 next-hop
path.nh_addr,
path.nh_itf,
path.nh_table_id,
path.weight,
next_hop_out_label_stack=lstack,
next_hop_n_out_labels=len(lstack),
is_multicast=self.is_multicast,
l2_only=self.is_l2)
self._sw_if_index = reply.sw_if_index
def remove_vpp_config(self):
for path in self.t_paths:
reply = self.test.vapi.mpls_tunnel_add_del(
self.sw_if_index,
1, # IPv4 next-hop
path.nh_addr,
path.nh_itf,
path.nh_table_id,
path.weight,
next_hop_out_label_stack=path.nh_labels,
next_hop_n_out_labels=len(path.nh_labels),
is_add=0)
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