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|
"""
IP Routes
object abstractions for representing IP routes in VPP
"""
from vpp_object import *
from socket import inet_pton, inet_ntop, AF_INET, AF_INET6
# from vnet/vnet/mpls/mpls_types.h
MPLS_IETF_MAX_LABEL = 0xfffff
MPLS_LABEL_INVALID = MPLS_IETF_MAX_LABEL + 1
class MRouteItfFlags:
MFIB_ITF_FLAG_NONE = 0
MFIB_ITF_FLAG_NEGATE_SIGNAL = 1
MFIB_ITF_FLAG_ACCEPT = 2
MFIB_ITF_FLAG_FORWARD = 4
MFIB_ITF_FLAG_SIGNAL_PRESENT = 8
MFIB_ITF_FLAG_INTERNAL_COPY = 16
class MRouteEntryFlags:
MFIB_ENTRY_FLAG_NONE = 0
MFIB_ENTRY_FLAG_SIGNAL = 1
MFIB_ENTRY_FLAG_DROP = 2
MFIB_ENTRY_FLAG_CONNECTED = 4
MFIB_ENTRY_FLAG_INHERIT_ACCEPT = 8
def find_route(test, ip_addr, len, table_id=0, inet=AF_INET):
if inet == AF_INET:
s = 4
routes = test.vapi.ip_fib_dump()
else:
s = 16
routes = test.vapi.ip6_fib_dump()
route_addr = inet_pton(inet, ip_addr)
for e in routes:
if route_addr == e.address[:s] \
and len == e.address_length \
and table_id == e.table_id:
return True
return False
class VppRoutePath(object):
def __init__(
self,
nh_addr,
nh_sw_if_index,
nh_table_id=0,
labels=[],
nh_via_label=MPLS_LABEL_INVALID,
is_ip6=0,
rpf_id=0,
is_interface_rx=0,
is_resolve_host=0,
is_resolve_attached=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
self.weight = 1
self.rpf_id = rpf_id
if is_ip6:
self.nh_addr = inet_pton(AF_INET6, nh_addr)
else:
self.nh_addr = inet_pton(AF_INET, nh_addr)
self.is_resolve_host = is_resolve_host
self.is_resolve_attached = is_resolve_attached
self.is_interface_rx = is_interface_rx
self.is_rpf_id = 0
if rpf_id != 0:
self.is_rpf_id = 1
self.nh_itf = rpf_id
class VppMRoutePath(VppRoutePath):
def __init__(self, nh_sw_if_index, flags):
super(VppMRoutePath, self).__init__("0.0.0.0",
nh_sw_if_index)
self.nh_i_flags = flags
class VppIpRoute(VppObject):
"""
IP Route
"""
def __init__(self, test, dest_addr,
dest_addr_len, paths, table_id=0, is_ip6=0, is_local=0,
is_unreach=0, is_prohibit=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
self.is_unreach = is_unreach
self.is_prohibit = is_prohibit
self.dest_addr_p = dest_addr
if is_ip6:
self.dest_addr = inet_pton(AF_INET6, dest_addr)
else:
self.dest_addr = inet_pton(AF_INET, dest_addr)
def modify(self, paths, is_local=0,
is_unreach=0, is_prohibit=0):
self.paths = paths
self.is_local = is_local
self.is_unreach = is_unreach
self.is_prohibit = is_prohibit
def add_vpp_config(self):
if self.is_local or self.is_unreach or self.is_prohibit:
self._test.vapi.ip_add_del_route(
self.dest_addr,
self.dest_addr_len,
inet_pton(AF_INET6, "::"),
0xffffffff,
is_local=self.is_local,
is_unreach=self.is_unreach,
is_prohibit=self.is_prohibit,
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,
next_hop_table_id=path.nh_table_id,
is_ipv6=self.is_ip6,
is_resolve_host=path.is_resolve_host,
is_resolve_attached=path.is_resolve_attached,
is_multipath=1 if len(self.paths) > 1 else 0)
self._test.registry.register(self, self._test.logger)
def remove_vpp_config(self):
if self.is_local or self.is_unreach or self.is_prohibit:
self._test.vapi.ip_add_del_route(
self.dest_addr,
self.dest_addr_len,
inet_pton(AF_INET6, "::"),
0xffffffff,
is_local=self.is_local,
is_unreach=self.is_unreach,
is_prohibit=self.is_prohibit,
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,
next_hop_table_id=path.nh_table_id,
next_hop_via_label=path.nh_via_label,
is_add=0,
is_ipv6=self.is_ip6)
def query_vpp_config(self):
return find_route(self._test,
self.dest_addr_p,
self.dest_addr_len,
self.table_id,
inet=AF_INET6 if self.is_ip6 == 1 else AF_INET)
def __str__(self):
return self.object_id()
def object_id(self):
return ("%d:%s/%d"
% (self.table_id,
self.dest_addr_p,
self.dest_addr_len))
class VppIpMRoute(VppObject):
"""
IP Multicast Route
"""
def __init__(self, test, src_addr, grp_addr,
grp_addr_len, e_flags, paths, table_id=0,
rpf_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
self.rpf_id = rpf_id
if is_ip6:
self.grp_addr = inet_pton(AF_INET6, grp_addr)
self.src_addr = inet_pton(AF_INET6, src_addr)
else:
self.grp_addr = inet_pton(AF_INET, grp_addr)
self.src_addr = inet_pton(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,
rpf_id=self.rpf_id,
table_id=self.table_id,
is_ipv6=self.is_ip6)
self._test.registry.register(self, self._test.logger)
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_rpf_id(self, rpf_id):
self.rpf_id = rpf_id
self._test.vapi.ip_mroute_add_del(self.src_addr,
self.grp_addr,
self.grp_addr_len,
self.e_flags,
0xffffffff,
0,
rpf_id=self.rpf_id,
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)
def query_vpp_config(self):
dump = self._test.vapi.ip_fib_dump()
for e in dump:
if self.grp_addr == e.address \
and self.grp_addr_len == e.address_length \
and self.table_id == e.table_id:
return True
return False
def __str__(self):
return self.object_id()
def object_id(self):
if self.is_ip6:
return ("%d:(%s,%s/%d)"
% (self.table_id,
inet_ntop(AF_INET6, self.src_addr),
inet_ntop(AF_INET6, self.grp_addr),
self.grp_addr_len))
else:
return ("%d:(%s,%s/%d)"
% (self.table_id,
inet_ntop(AF_INET, self.src_addr),
inet_ntop(AF_INET, self.grp_addr),
self.grp_addr_len))
class VppMFibSignal(object):
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 VppMplsIpBind(VppObject):
"""
MPLS to IP Binding
"""
def __init__(self, test, local_label, dest_addr, dest_addr_len,
table_id=0, ip_table_id=0, is_ip6=0):
self._test = test
self.dest_addr_len = dest_addr_len
self.dest_addr = dest_addr
self.local_label = local_label
self.table_id = table_id
self.ip_table_id = ip_table_id
self.is_ip6 = is_ip6
if is_ip6:
self.dest_addrn = inet_pton(AF_INET6, dest_addr)
else:
self.dest_addrn = inet_pton(AF_INET, dest_addr)
def add_vpp_config(self):
self._test.vapi.mpls_ip_bind_unbind(self.local_label,
self.dest_addrn,
self.dest_addr_len,
table_id=self.table_id,
ip_table_id=self.ip_table_id,
is_ip4=(self.is_ip6 == 0))
self._test.registry.register(self, self._test.logger)
def remove_vpp_config(self):
self._test.vapi.mpls_ip_bind_unbind(self.local_label,
self.dest_addrn,
self.dest_addr_len,
table_id=self.table_id,
ip_table_id=self.ip_table_id,
is_bind=0,
is_ip4=(self.is_ip6 == 0))
def query_vpp_config(self):
dump = self._test.vapi.mpls_fib_dump()
for e in dump:
if self.local_label == e.label \
and self.table_id == e.table_id:
return True
return False
def __str__(self):
return self.object_id()
def object_id(self):
return ("%d:%s binds %d:%s/%d"
% (self.table_id,
self.local_label,
self.ip_table_id,
self.dest_addr,
self.dest_addr_len))
class VppMplsRoute(VppObject):
"""
MPLS Route/LSP
"""
def __init__(self, test, local_label, eos_bit, paths, table_id=0,
is_multicast=0):
self._test = test
self.paths = paths
self.local_label = local_label
self.eos_bit = eos_bit
self.table_id = table_id
self.is_multicast = is_multicast
def add_vpp_config(self):
is_multipath = len(self.paths) > 1
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,
is_multicast=self.is_multicast,
is_multipath=is_multipath,
table_id=self.table_id,
is_interface_rx=path.is_interface_rx,
is_rpf_id=path.is_rpf_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)
self._test.registry.register(self, self._test.logger)
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,
is_rpf_id=path.is_rpf_id,
table_id=self.table_id,
is_add=0)
def query_vpp_config(self):
dump = self._test.vapi.mpls_fib_dump()
for e in dump:
if self.local_label == e.label \
and self.eos_bit == e.eos_bit \
and self.table_id == e.table_id:
return True
return False
def __str__(self):
return self.object_id()
def object_id(self):
return ("%d:%s/%d"
% (self.table_id,
self.local_label,
20+self.eos_bit))
|
