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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(object):
def __init__(
self,
nh_addr,
nh_sw_if_index,
nh_table_id=0,
labels=[],
nh_via_label=MPLS_LABEL_INVALID,
is_ip6=0):
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
if is_ip6:
self.nh_addr = socket.inet_pton(socket.AF_INET6, nh_addr)
else:
self.nh_addr = socket.inet_pton(socket.AF_INET, nh_addr)
class MRoutePath(RoutePath):
def __init__(self, nh_sw_if_index, flags):
super(MRoutePath, self).__init__("0.0.0.0",
nh_sw_if_index)
self.nh_i_flags = flags
class IpRoute:
"""
IP Route
"""
def __init__(self, test, dest_addr,
dest_addr_len, paths, table_id=0, is_ip6=0, is_local=0):
self._test = test
self.paths = paths
self.dest_addr_len = dest_addr_len
self.table_id = table_id
self.is_ip6 = is_ip6
self.is_local = is_local
if is_ip6:
self.dest_addr = socket.inet_pton(socket.AF_INET6, dest_addr)
else:
self.dest_addr = socket.inet_pton(socket.AF_INET, dest_addr)
def add_vpp_config(self):
if self.is_local:
self._test.vapi.ip_add_del_route(
self.dest_addr,
self.dest_addr_len,
socket.inet_pton(socket.AF_INET6, "::"),
0xffffffff,
is_local=1,
table_id=self.table_id,
is_ipv6=self.is_ip6)
else:
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,
is_ipv6=self.is_ip6)
def remove_vpp_config(self):
if self.is_local:
self._test.vapi.ip_add_del_route(
self.dest_addr,
self.dest_addr_len,
socket.inet_pton(socket.AF_INET6, "::"),
0xffffffff,
is_local=1,
is_add=0,
table_id=self.table_id,
is_ipv6=self.is_ip6)
else:
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 IpMRoute:
"""
IP Multicast Route
"""
def __init__(self, test, src_addr, grp_addr,
grp_addr_len, e_flags, paths, table_id=0, is_ip6=0):
self._test = test
self.paths = paths
self.grp_addr_len = grp_addr_len
self.table_id = table_id
self.e_flags = e_flags
self.is_ip6 = is_ip6
if is_ip6:
self.grp_addr = socket.inet_pton(socket.AF_INET6, grp_addr)
self.src_addr = socket.inet_pton(socket.AF_INET6, src_addr)
else:
self.grp_addr = socket.inet_pton(socket.AF_INET, grp_addr)
self.src_addr = socket.inet_pton(socket.AF_INET, src_addr)
def add_vpp_config(self):
for path in self.paths:
self._test.vapi.ip_mroute_add_del(self.src_addr,
self.grp_addr,
self.grp_addr_len,
self.e_flags,
path.nh_itf,
path.nh_i_flags,
table_id=self.table_id,
is_ipv6=self.is_ip6)
def remove_vpp_config(self):
for path in self.paths:
self._test.vapi.ip_mroute_add_del(self.src_addr,
self.grp_addr,
self.grp_addr_len,
self.e_flags,
path.nh_itf,
path.nh_i_flags,
table_id=self.table_id,
is_add=0,
is_ipv6=self.is_ip6)
def update_entry_flags(self, flags):
self.e_flags = flags
self._test.vapi.ip_mroute_add_del(self.src_addr,
self.grp_addr,
self.grp_addr_len,
self.e_flags,
0xffffffff,
0,
table_id=self.table_id,
is_ipv6=self.is_ip6)
def update_path_flags(self, itf, flags):
for path in self.paths:
if path.nh_itf == itf:
path.nh_i_flags = flags
break
self._test.vapi.ip_mroute_add_del(self.src_addr,
self.grp_addr,
self.grp_addr_len,
self.e_flags,
path.nh_itf,
path.nh_i_flags,
table_id=self.table_id,
is_ipv6=self.is_ip6)
class MFibSignal:
def __init__(self, test, route, interface, packet):
self.route = route
self.interface = interface
self.packet = packet
self.test = test
def compare(self, signal):
self.test.assertEqual(self.interface, signal.sw_if_index)
self.test.assertEqual(self.route.table_id, signal.table_id)
self.test.assertEqual(self.route.grp_addr_len,
signal.grp_address_len)
for i in range(self.route.grp_addr_len / 8):
self.test.assertEqual(self.route.grp_addr[i],
signal.grp_address[i])
if (self.route.grp_addr_len > 32):
for i in range(4):
self.test.assertEqual(self.route.src_addr[i],
signal.src_address[i])
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,
next_hop_table_id=path.nh_table_id)
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)
|
