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"""
IP Routes
object abstractions for representing IP routes in VPP
"""
import socket
# from vnet/vnet/mpls/mpls_types.h
MPLS_IETF_MAX_LABEL = 0xfffff
MPLS_LABEL_INVALID = MPLS_IETF_MAX_LABEL + 1
class RoutePath:
def __init__(self, nh_addr, nh_sw_if_index, nh_table_id=0, labels=[], nh_via_label=MPLS_LABEL_INVALID):
self.nh_addr = socket.inet_pton(socket.AF_INET, nh_addr)
self.nh_itf = nh_sw_if_index
self.nh_table_id = nh_table_id
self.nh_via_label = nh_via_label
self.nh_labels = labels
class IpRoute:
"""
IP Route
"""
def __init__(self, test, dest_addr,
dest_addr_len, paths, table_id=0):
self._test = test
self.paths = paths
self.dest_addr = socket.inet_pton(socket.AF_INET, dest_addr)
self.dest_addr_len = dest_addr_len
self.table_id = table_id
def add_vpp_config(self):
for path in self.paths:
self._test.vapi.ip_add_del_route(self.dest_addr,
self.dest_addr_len,
path.nh_addr,
path.nh_itf,
table_id=self.table_id,
next_hop_out_label_stack=path.nh_labels,
next_hop_n_out_labels=len(
path.nh_labels),
next_hop_via_label=path.nh_via_label)
def remove_vpp_config(self):
for path in self.paths:
self._test.vapi.ip_add_del_route(self.dest_addr,
self.dest_addr_len,
path.nh_addr,
path.nh_itf,
table_id=self.table_id,
is_add=0)
class MplsIpBind:
"""
MPLS to IP Binding
"""
def __init__(self, test, local_label, dest_addr, dest_addr_len):
self._test = test
self.dest_addr = socket.inet_pton(socket.AF_INET, dest_addr)
self.dest_addr_len = dest_addr_len
self.local_label = local_label
def add_vpp_config(self):
self._test.vapi.mpls_ip_bind_unbind(self.local_label,
self.dest_addr,
self.dest_addr_len)
def remove_vpp_config(self):
self._test.vapi.mpls_ip_bind_unbind(self.local_label,
self.dest_addr,
self.dest_addr_len,
is_bind=0)
class MplsRoute:
"""
MPLS Route
"""
def __init__(self, test, local_label, eos_bit, paths, table_id=0):
self._test = test
self.paths = paths
self.local_label = local_label
self.eos_bit = eos_bit
self.table_id = table_id
def add_vpp_config(self):
for path in self.paths:
self._test.vapi.mpls_route_add_del(self.local_label,
self.eos_bit,
1,
path.nh_addr,
path.nh_itf,
table_id=self.table_id,
next_hop_out_label_stack=path.nh_labels,
next_hop_n_out_labels=len(
path.nh_labels),
next_hop_via_label=path.nh_via_label)
def remove_vpp_config(self):
for path in self.paths:
self._test.vapi.mpls_route_add_del(self.local_label,
self.eos_bit,
1,
path.nh_addr,
path.nh_itf,
table_id=self.table_id,
is_add=0)
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