# Copyright (c) 2019 Cisco and/or its affiliates. # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at: # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. """GBP utilities library.""" from enum import IntEnum from ipaddress import ip_address from resources.libraries.python.IPUtil import IPUtil from resources.libraries.python.L2Util import L2Util from resources.libraries.python.PapiExecutor import PapiSocketExecutor from resources.libraries.python.topology import Topology class GBPEndpointFlags(IntEnum): """GBP Endpoint Flags.""" GBP_API_ENDPOINT_FLAG_NONE = 0 GBP_API_ENDPOINT_FLAG_BOUNCE = 1 GBP_API_ENDPOINT_FLAG_REMOTE = 2 GBP_API_ENDPOINT_FLAG_LEARNT = 4 GBP_API_ENDPOINT_FLAG_EXTERNAL = 8 class GBPBridgeDomainFlags(IntEnum): """GBP Bridge Domain Flags.""" GBP_BD_API_FLAG_NONE = 0 GBP_BD_API_FLAG_DO_NOT_LEARN = 1 GBP_BD_API_FLAG_UU_FWD_DROP = 2 GBP_BD_API_FLAG_MCAST_DROP = 4 GBP_BD_API_FLAG_UCAST_ARP = 8 class GBPSubnetType(IntEnum): """GBP Subnet Type.""" GBP_API_SUBNET_TRANSPORT = 1 GBP_API_SUBNET_STITCHED_INTERNAL = 2 GBP_API_SUBNET_STITCHED_EXTERNAL = 3 GBP_API_SUBNET_L3_OUT = 4 GBP_API_SUBNET_ANON_L3_OUT = 5 class GBPExtItfFlags(IntEnum): """GBP External Interface Flags.""" GBP_API_EXT_ITF_F_NONE = 0 GBP_API_EXT_ITF_F_ANON = 1 class GBPRuleAction(IntEnum): """GBP Rule Action.""" GBP_API_RULE_PERMIT = 1 GBP_API_RULE_DENY = 2 GBP_API_RULE_REDIRECT = 3 class GBP(object): """GBP utilities.""" @staticmethod def gbp_route_domain_add( node, rd_id=1, ip4_table_id=1, ip6_table_id=0, ip4_uu_sw_if_index=0xffffffff, ip6_uu_sw_if_index=0xffffffff): """Add GBP route domain. :param node: Node to add GBP route domain on. :param rd_id: GBP route domain ID. :param ip4_table_id: IPv4 table. :param ip6_table_id: IPv6 table. :param ip4_uu_sw_if_index: IPv4 unicast interface index. :param ip6_uu_sw_if_index: IPv6 unicast interface index. :type node: dict :type rd_id: int :type ip4_table_id: int :type ip6_table_id: int :type ip4_uu_sw_if_index: int :type ip6_uu_sw_if_index: int """ cmd = 'gbp_route_domain_add' err_msg = 'Failed to add GBP route domain on {node}!'\ .format(node=node['host']) args_in = dict( rd = dict ( rd_id = rd_id, ip4_table_id = ip4_table_id, ip6_table_id = ip6_table_id, ip4_uu_sw_if_index = ip4_uu_sw_if_index, ip6_uu_sw_if_index = ip6_uu_sw_if_index ) ) with PapiSocketExecutor(node) as papi_exec: papi_exec.add(cmd, **args_in).get_reply(err_msg) @staticmethod def gbp_bridge_domain_add( node, bvi_sw_if_index, bd_id=1, rd_id=1, uu_fwd_sw_if_index=0xffffffff, bm_flood_sw_if_index=0xffffffff): """Add GBP bridge domain. :param node: Node to add GBP bridge domain on. :param bvi_sw_if_index: SW index of BVI/loopback interface. :param bd_id: GBP bridge domain ID. :param rd_id: GBP route domain ID. :param uu_fwd_sw_if_index: Unicast forward interface index. :param bm_flood_sw_if_index: Bcast/Mcast flood interface index. :type node: dict :type bvi_sw_if_index: int :type bd_id: int :type rd_id: int :type uu_fwd_sw_if_index: int :type bm_flood_sw_if_index: int """ cmd = 'gbp_bridge_domain_add' err_msg = 'Failed to add GBP bridge domain on {node}!'\ .format(node=node['host']) args_in = dict( bd = dict( flags = getattr(GBPBridgeDomainFlags, 'GBP_BD_API_FLAG_NONE').value, bvi_sw_if_index = bvi_sw_if_index, uu_fwd_sw_if_index = uu_fwd_sw_if_index, bm_flood_sw_if_index = bm_flood_sw_if_index, bd_id = bd_id, rd_id = rd_id ) ) with PapiSocketExecutor(node) as papi_exec: papi_exec.add(cmd, **args_in).get_reply(err_msg) @staticmethod def gbp_endpoint_group_add( node, sclass, bd_id=1, rd_id=1, vnid=1, uplink_sw_if_index=0xffffffff, remote_ep_timeout=0xffffffff): """Add GBP endpoint group. :param node: Node to add GBP endpoint group on. :param sclass: Source CLASS. :param bd_id: GBP bridge domain ID. :param rd_id: GBP route domain ID. :param uplink_sw_if_index: Uplink interface index. :param remote_ep_timeout: Remote endpoint interface index. :param vnid: VNID. :type node: dict :type sclass: int :type bd_id: int :type rd_id: int :type vnid: int :type uplink_sw_if_index: int :type remote_ep_timeout: int """ cmd = 'gbp_endpoint_group_add' err_msg = 'Failed to add GBP endpoint group on {node}!'\ .format(node=node['host']) args_in = dict( epg = dict ( uplink_sw_if_index = uplink_sw_if_index, bd_id = bd_id, rd_id = rd_id, vnid = vnid, sclass = sclass, retention = dict ( remote_ep_timeout = remote_ep_timeout ) ) ) with PapiSocketExecutor(node) as papi_exec: papi_exec.add(cmd, **args_in).get_reply(err_msg) @staticmethod def gbp_endpoint_add(node, sw_if_index, ip_addr, mac_addr, sclass): """Add GBP endpoint. :param node: Node to add GBP endpoint on. :param sw_if_index: SW index of interface. :param ip_addr: GBP route domain ID. :param mac_addr: MAC address. :param sclass: Source CLASS. :type node: dict :type sw_if_index: int :type ip_addr: str :type mac_addr: str :type sclass: int """ cmd = 'gbp_endpoint_add' err_msg = 'Failed to add GBP endpoint on {node}!'\ .format(node=node['host']) ips = list() ips.append(IPUtil.create_ip_address_object( ip_address(unicode(ip_addr)))) tun_src = IPUtil.create_ip_address_object( ip_address(unicode('0.0.0.0'))) tun_dst = IPUtil.create_ip_address_object( ip_address(unicode('0.0.0.0'))) args_in = dict( endpoint = dict( sw_if_index = sw_if_index, ips = ips, n_ips = len(ips), mac = L2Util.mac_to_bin(mac_addr), sclass = sclass, flags = getattr(GBPEndpointFlags, 'GBP_API_ENDPOINT_FLAG_EXTERNAL').value, tun = dict( src = tun_src, dst = tun_dst ) ) ) with PapiSocketExecutor(node) as papi_exec: papi_exec.add(cmd, **args_in).get_reply(err_msg) @staticmethod def gbp_ext_itf_add_del(node, sw_if_index, bd_id=1, rd_id=1): """Add external interface to GBP. :param node: Node to add external GBP interface on. :param sw_if_index: SW index of interface. :param bd_id: GBP bridge domain ID. :param rd_id: GBP route domain ID. :type node: dict :type sw_if_index: int :type bd_id: int :type rd_id: int """ cmd = 'gbp_ext_itf_add_del' err_msg = 'Failed to add external GBP interface on {node}!'\ .format(node=node['host']) args_in = dict( is_add = 1, ext_itf = dict( sw_if_index = sw_if_index, bd_id = bd_id, rd_id = rd_id, flags = getattr(GBPExtItfFlags, 'GBP_API_EXT_ITF_F_NONE').value ) ) with PapiSocketExecutor(node) as papi_exec: papi_exec.add(cmd, **args_in).get_reply(err_msg) @staticmethod def gbp_subnet_add_del( node, address, subnet_length, sclass, rd_id=1, sw_if_index=0xffffffff): """Add external interface to GBP. :param node: Node to add GBP subnet on. :param address: IPv4 adddress. :param subnet_length: IPv4 address subnet. :param sclass: Source CLASS. :param rd_id: GBP route domain ID. :param sw_if_index: Interface index. :type node: dict :type address: int :type subnet_length: int :type sclass: int :type rd_id: int :type sw_if_index: int """ cmd = 'gbp_subnet_add_del' err_msg = 'Failed to add GBP subnet on {node}!'\ .format(node=node['host']) args_in = dict( is_add = 1, subnet = dict( type = getattr(GBPSubnetType, 'GBP_API_SUBNET_L3_OUT').value, sw_if_index = sw_if_index, sclass = sclass, prefix = dict( address = IPUtil.create_ip_address_object( ip_address(unicode(address))), len = int(subnet_length) ), rd_id = rd_id ) ) with PapiSocketExecutor(node) as papi_exec: papi_exec.add(cmd, **args_in).get_reply(err_msg) @staticmethod def gbp_contract_add_del(node, sclass, dclass, acl_index=0): """Add GBP contract. :param node: Node to add GBP contract on. :param sclass: Source CLASS. :param dclass: Destination CLASS. :param acl_index: Index of ACL rule. :type node: dict :type sclass: int :type dclass: int :type acl_index: int """ cmd = 'gbp_contract_add_del' err_msg = 'Failed to add GBP contract on {node}!'\ .format(node=node['host']) rule_permit = dict( action = getattr(GBPRuleAction, 'GBP_API_RULE_PERMIT').value, nh_set = dict( hash_mode = list(), n_nhs = 8, nhs = [dict()]*8, ) ) rules = [rule_permit, rule_permit] args_in = dict( is_add = 1, contract = dict( acl_index = acl_index, sclass = sclass, dclass = dclass, n_rules = len(rules), rules = rules, n_ether_types = 16, allowed_ethertypes = [0x800, 0x86dd] + [0]*14 ) ) with PapiSocketExecutor(node) as papi_exec: papi_exec.add(cmd, **args_in).get_reply(err_msg)