""" 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 class DpoProto: DPO_PROTO_IP4 = 0 DPO_PROTO_IP6 = 1 DPO_PROTO_MPLS = 2 DPO_PROTO_ETHERNET = 3 DPO_PROTO_NSH = 4 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 VppIpTable(VppObject): def __init__(self, test, table_id, is_ip6=0): self._test = test self.table_id = table_id self.is_ip6 = is_ip6 def add_vpp_config(self): self._test.vapi.ip_table_add_del( self.table_id, is_ipv6=self.is_ip6, is_add=1) self._test.registry.register(self, self._test.logger) def remove_vpp_config(self): self._test.vapi.ip_table_add_del( self.table_id, is_ipv6=self.is_ip6, is_add=0) def query_vpp_config(self): # find the default route return find_route(self._test, "::" if self.is_ip6 else "0.0.0.0", 0, 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 ("table-%s-%d" % ("v6" if self.is_ip6 == 1 else "v4", self.table_id)) class VppRoutePath(object): def __init__( self, nh_addr, nh_sw_if_index, nh_table_id=0, labels=[], nh_via_label=MPLS_LABEL_INVALID, rpf_id=0, is_interface_rx=0, is_resolve_host=0, is_resolve_attached=0, is_source_lookup=0, is_udp_encap=0, next_hop_id=0xffffffff, proto=DpoProto.DPO_PROTO_IP4): 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 self.proto = proto if self.proto is DpoProto.DPO_PROTO_IP6: self.nh_addr = inet_pton(AF_INET6, nh_addr) elif self.proto is DpoProto.DPO_PROTO_IP4: self.nh_addr = inet_pton(AF_INET, nh_addr) else: self.nh_addr = inet_pton(AF_INET6, "::") self.is_resolve_host = is_resolve_host self.is_resolve_attached = is_resolve_attached self.is_interface_rx = is_interface_rx self.is_source_lookup = is_source_lookup self.is_rpf_id = 0 if rpf_id != 0: self.is_rpf_id = 1 self.nh_itf = rpf_id self.is_udp_encap = is_udp_encap self.next_hop_id = next_hop_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, next_hop_id=path.next_hop_id, is_ipv6=self.is_ip6, is_l2_bridged=1 if path.proto == DpoProto.DPO_PROTO_ETHERNET else 0, is_resolve_host=path.is_resolve_host, is_resolve_attached=path.is_resolve_attached, is_source_lookup=path.is_source_lookup, is_udp_encap=path.is_udp_encap, 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, next_hop_id=path.next_hop_id, is_add=0, is_udp_encap=path.is_udp_encap, 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 VppMplsTable(VppObject): def __init__(self, test, table_id): self._test = test self.table_id = table_id def add_vpp_config(self): self._test.vapi.mpls_table_add_del( self.table_id, is_add=1) self._test.registry.register(self, self._test.logger) def remove_vpp_config(self): self._test.vapi.mpls_table_add_del( self.table_id, is_add=0) def query_vpp_config(self): # find the default route dump = self._test.vapi.mpls_fib_dump() if len(dump): return True return False def __str__(self): return self.object_id() def object_id(self): return ("table-mpls-%d" % (self.table_id)) 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, path.proto, 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, path.proto, 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))