Examples with Configuration org.batfish.datamodel.Configuration used on opensource projects

Example 21 with Configuration

use of org.batfish.datamodel.Configuration in project batfish by batfish.

the class CiscoConfiguration method toVendorIndependentConfiguration.

@Override
public Configuration toVendorIndependentConfiguration() {
    final Configuration c = new Configuration(_hostname, _vendor);
    c.getVendorFamily().setCisco(_cf);
    c.setRoles(_roles);
    c.setDefaultInboundAction(LineAction.ACCEPT);
    c.setDefaultCrossZoneAction(LineAction.ACCEPT);
    c.setDnsServers(_dnsServers);
    c.setDnsSourceInterface(_dnsSourceInterface);
    c.setDomainName(_domainName);
    c.setNormalVlanRange(new SubRange(VLAN_NORMAL_MIN_CISCO, VLAN_NORMAL_MAX_CISCO));
    c.setTacacsServers(_tacacsServers);
    c.setTacacsSourceInterface(_tacacsSourceInterface);
    c.setNtpSourceInterface(_ntpSourceInterface);
    if (_cf.getNtp() != null) {
        c.setNtpServers(new TreeSet<>(_cf.getNtp().getServers().keySet()));
    }
    if (_cf.getLogging() != null) {
        c.setLoggingSourceInterface(_cf.getLogging().getSourceInterface());
        c.setLoggingServers(new TreeSet<>(_cf.getLogging().getHosts().keySet()));
    }
    c.setSnmpSourceInterface(_snmpSourceInterface);
    processLines();
    processFailoverSettings();
    // remove line login authentication lists if they don't exist
    for (Line line : _cf.getLines().values()) {
        String list = line.getLoginAuthentication();
        boolean found = false;
        Aaa aaa = _cf.getAaa();
        if (aaa != null) {
            AaaAuthentication authentication = aaa.getAuthentication();
            if (authentication != null) {
                AaaAuthenticationLogin login = authentication.getLogin();
                if (login != null && login.getLists().containsKey(list)) {
                    found = true;
                }
            }
        }
        if (!found) {
            line.setLoginAuthentication(null);
        }
    }
    // initialize vrfs
    for (String vrfName : _vrfs.keySet()) {
        c.getVrfs().put(vrfName, new org.batfish.datamodel.Vrf(vrfName));
    }
    // snmp server
    if (_snmpServer != null) {
        String snmpServerVrf = _snmpServer.getVrf();
        c.getVrfs().get(snmpServerVrf).setSnmpServer(_snmpServer);
    }
    // convert as path access lists to vendor independent format
    for (IpAsPathAccessList pathList : _asPathAccessLists.values()) {
        AsPathAccessList apList = toAsPathAccessList(pathList);
        c.getAsPathAccessLists().put(apList.getName(), apList);
    }
    // convert as-path-sets to vendor independent format
    for (AsPathSet asPathSet : _asPathSets.values()) {
        AsPathAccessList apList = toAsPathAccessList(asPathSet);
        c.getAsPathAccessLists().put(apList.getName(), apList);
    }
    // convert standard/expanded community lists to community lists
    for (StandardCommunityList scList : _standardCommunityLists.values()) {
        ExpandedCommunityList ecList = scList.toExpandedCommunityList();
        CommunityList cList = toCommunityList(ecList);
        c.getCommunityLists().put(cList.getName(), cList);
    }
    for (ExpandedCommunityList ecList : _expandedCommunityLists.values()) {
        CommunityList cList = toCommunityList(ecList);
        c.getCommunityLists().put(cList.getName(), cList);
    }
    // convert prefix lists to route filter lists
    for (PrefixList prefixList : _prefixLists.values()) {
        RouteFilterList newRouteFilterList = toRouteFilterList(prefixList);
        c.getRouteFilterLists().put(newRouteFilterList.getName(), newRouteFilterList);
    }
    // convert ipv6 prefix lists to route6 filter lists
    for (Prefix6List prefixList : _prefix6Lists.values()) {
        Route6FilterList newRouteFilterList = toRoute6FilterList(prefixList);
        c.getRoute6FilterLists().put(newRouteFilterList.getName(), newRouteFilterList);
    }
    // convert standard/extended access lists to access lists or route filter
    // lists
    List<ExtendedAccessList> allACLs = new ArrayList<>();
    for (StandardAccessList saList : _standardAccessLists.values()) {
        ExtendedAccessList eaList = saList.toExtendedAccessList();
        allACLs.add(eaList);
    }
    allACLs.addAll(_extendedAccessLists.values());
    for (ExtendedAccessList eaList : allACLs) {
        if (usedForRouting(eaList)) {
            String msg = "used for routing";
            StandardAccessList parent = eaList.getParent();
            if (parent != null) {
                parent.getReferers().put(this, msg);
            } else {
                eaList.getReferers().put(this, msg);
            }
            RouteFilterList rfList = toRouteFilterList(eaList);
            c.getRouteFilterLists().put(rfList.getName(), rfList);
        }
        IpAccessList ipaList = toIpAccessList(eaList);
        c.getIpAccessLists().put(ipaList.getName(), ipaList);
    }
    // convert standard/extended ipv6 access lists to ipv6 access lists or
    // route6 filter
    // lists
    List<ExtendedIpv6AccessList> allIpv6ACLs = new ArrayList<>();
    for (StandardIpv6AccessList saList : _standardIpv6AccessLists.values()) {
        ExtendedIpv6AccessList eaList = saList.toExtendedIpv6AccessList();
        allIpv6ACLs.add(eaList);
    }
    allIpv6ACLs.addAll(_extendedIpv6AccessLists.values());
    for (ExtendedIpv6AccessList eaList : allIpv6ACLs) {
        if (usedForRouting(eaList)) {
            String msg = "used for routing";
            StandardIpv6AccessList parent = eaList.getParent();
            if (parent != null) {
                parent.getReferers().put(this, msg);
            } else {
                eaList.getReferers().put(this, msg);
            }
            Route6FilterList rfList = toRoute6FilterList(eaList);
            c.getRoute6FilterLists().put(rfList.getName(), rfList);
        }
        Ip6AccessList ipaList = toIp6AccessList(eaList);
        c.getIp6AccessLists().put(ipaList.getName(), ipaList);
    }
    // convert route maps to policy maps
    Set<RouteMap> routingRouteMaps = getRoutingRouteMaps();
    for (RouteMap map : _routeMaps.values()) {
        convertForPurpose(routingRouteMaps, map);
        // convert route maps to RoutingPolicy objects
        RoutingPolicy newPolicy = toRoutingPolicy(c, map);
        c.getRoutingPolicies().put(newPolicy.getName(), newPolicy);
    }
    // convert RoutePolicy to RoutingPolicy
    for (RoutePolicy routePolicy : _routePolicies.values()) {
        RoutingPolicy routingPolicy = toRoutingPolicy(c, routePolicy);
        c.getRoutingPolicies().put(routingPolicy.getName(), routingPolicy);
    }
    // convert interfaces
    _interfaces.forEach((ifaceName, iface) -> {
        org.batfish.datamodel.Interface newInterface = toInterface(iface, c.getIpAccessLists(), c);
        String vrfName = iface.getVrf();
        if (vrfName == null) {
            throw new BatfishException("Missing vrf name for iface: '" + iface.getName() + "'");
        }
        c.getInterfaces().put(ifaceName, newInterface);
        c.getVrfs().get(vrfName).getInterfaces().put(ifaceName, newInterface);
    });
    // apply vrrp settings to interfaces
    applyVrrp(c);
    // get IKE proposals
    for (Entry<String, IsakmpPolicy> e : _isakmpPolicies.entrySet()) {
        c.getIkeProposals().put(e.getKey(), e.getValue().getProposal());
    }
    addIkePoliciesAndGateways(c);
    // ipsec proposals
    for (Entry<String, IpsecTransformSet> e : _ipsecTransformSets.entrySet()) {
        c.getIpsecProposals().put(e.getKey(), e.getValue().getProposal());
    }
    // ipsec policies
    for (Entry<String, IpsecProfile> e : _ipsecProfiles.entrySet()) {
        String name = e.getKey();
        IpsecProfile profile = e.getValue();
        IpsecPolicy policy = new IpsecPolicy(name);
        policy.setPfsKeyGroup(profile.getPfsGroup());
        String transformSetName = profile.getTransformSet();
        if (c.getIpsecProposals().containsKey(transformSetName)) {
            policy.getProposals().put(transformSetName, c.getIpsecProposals().get(transformSetName));
        }
        c.getIpsecPolicies().put(name, policy);
    }
    // ipsec vpns
    for (Entry<String, Interface> e : _interfaces.entrySet()) {
        String name = e.getKey();
        Interface iface = e.getValue();
        Tunnel tunnel = iface.getTunnel();
        if (tunnel != null && tunnel.getMode() == TunnelMode.IPSEC) {
            IpsecVpn ipsecVpn = new IpsecVpn(name, c);
            ipsecVpn.setBindInterface(c.getInterfaces().get(name));
            ipsecVpn.setIpsecPolicy(c.getIpsecPolicies().get(tunnel.getIpsecProfileName()));
            Ip source = tunnel.getSource();
            Ip destination = tunnel.getDestination();
            if (source == null || destination == null) {
                _w.redFlag("Can't match IkeGateway: tunnel source or destination is not set for " + name);
            } else {
                for (IkeGateway ikeGateway : c.getIkeGateways().values()) {
                    if (source.equals(ikeGateway.getLocalIp()) && destination.equals(ikeGateway.getAddress())) {
                        ipsecVpn.setIkeGateway(ikeGateway);
                    }
                }
                if (ipsecVpn.getIkeGateway() == null) {
                    _w.redFlag("Can't find matching IkeGateway for " + name);
                }
            }
            c.getIpsecVpns().put(ipsecVpn.getName(), ipsecVpn);
        }
    }
    // convert routing processes
    _vrfs.forEach((vrfName, vrf) -> {
        org.batfish.datamodel.Vrf newVrf = c.getVrfs().get(vrfName);
        // add snmp trap servers to main list
        if (newVrf.getSnmpServer() != null) {
            c.getSnmpTrapServers().addAll(newVrf.getSnmpServer().getHosts().keySet());
        }
        // convert static routes
        for (StaticRoute staticRoute : vrf.getStaticRoutes()) {
            newVrf.getStaticRoutes().add(toStaticRoute(c, staticRoute));
        }
        // convert rip process
        RipProcess ripProcess = vrf.getRipProcess();
        if (ripProcess != null) {
            org.batfish.datamodel.RipProcess newRipProcess = toRipProcess(ripProcess, vrfName, c, this);
            newVrf.setRipProcess(newRipProcess);
        }
        // convert ospf process
        OspfProcess ospfProcess = vrf.getOspfProcess();
        if (ospfProcess != null) {
            org.batfish.datamodel.OspfProcess newOspfProcess = toOspfProcess(ospfProcess, vrfName, c, this);
            newVrf.setOspfProcess(newOspfProcess);
        }
        // convert isis process
        IsisProcess isisProcess = vrf.getIsisProcess();
        if (isisProcess != null) {
            org.batfish.datamodel.IsisProcess newIsisProcess = toIsisProcess(isisProcess, c, this);
            newVrf.setIsisProcess(newIsisProcess);
        }
        // convert bgp process
        BgpProcess bgpProcess = vrf.getBgpProcess();
        if (bgpProcess != null) {
            org.batfish.datamodel.BgpProcess newBgpProcess = toBgpProcess(c, bgpProcess, vrfName);
            c.getVrfs().get(vrfName).setBgpProcess(newBgpProcess);
        }
    });
    // warn about references to undefined peer groups
    for (Entry<String, Integer> e : _undefinedPeerGroups.entrySet()) {
        String name = e.getKey();
        int line = e.getValue();
        undefined(CiscoStructureType.BGP_PEER_GROUP, name, CiscoStructureUsage.BGP_NEIGHBOR_STATEMENT, line);
    }
    // mark references to IPv4/6 ACLs that may not appear in data model
    markAcls(CiscoStructureUsage.CLASS_MAP_ACCESS_GROUP);
    markIpv4Acls(CiscoStructureUsage.CONTROL_PLANE_ACCESS_GROUP);
    markAcls(CiscoStructureUsage.COPS_LISTENER_ACCESS_LIST);
    markAcls(CiscoStructureUsage.CRYPTO_MAP_IPSEC_ISAKMP_ACL);
    markAcls(CiscoStructureUsage.INTERFACE_IGMP_ACCESS_GROUP_ACL);
    markIpv4Acls(CiscoStructureUsage.INTERFACE_IGMP_STATIC_GROUP_ACL);
    markAcls(CiscoStructureUsage.INTERFACE_IP_INBAND_ACCESS_GROUP);
    markIpv4Acls(CiscoStructureUsage.INTERFACE_IP_VERIFY_ACCESS_LIST);
    markIpv4Acls(CiscoStructureUsage.INTERFACE_PIM_NEIGHBOR_FILTER);
    markIpv4Acls(CiscoStructureUsage.IP_NAT_DESTINATION_ACCESS_LIST);
    markIpv4Acls(CiscoStructureUsage.IP_NAT_SOURCE_ACCESS_LIST);
    markAcls(CiscoStructureUsage.LINE_ACCESS_CLASS_LIST);
    markIpv6Acls(CiscoStructureUsage.LINE_ACCESS_CLASS_LIST6);
    markIpv4Acls(CiscoStructureUsage.MANAGEMENT_TELNET_ACCESS_GROUP);
    markIpv4Acls(CiscoStructureUsage.MSDP_PEER_SA_LIST);
    markIpv4Acls(CiscoStructureUsage.NTP_ACCESS_GROUP);
    markIpv4Acls(CiscoStructureUsage.PIM_ACCEPT_REGISTER_ACL);
    markIpv4Acls(CiscoStructureUsage.PIM_ACCEPT_RP_ACL);
    markIpv4Acls(CiscoStructureUsage.PIM_RP_ADDRESS_ACL);
    markIpv4Acls(CiscoStructureUsage.PIM_RP_ANNOUNCE_FILTER);
    markIpv4Acls(CiscoStructureUsage.PIM_RP_CANDIDATE_ACL);
    markIpv4Acls(CiscoStructureUsage.PIM_SEND_RP_ANNOUNCE_ACL);
    markIpv4Acls(CiscoStructureUsage.PIM_SPT_THRESHOLD_ACL);
    markAcls(CiscoStructureUsage.RIP_DISTRIBUTE_LIST);
    markAcls(CiscoStructureUsage.ROUTER_ISIS_DISTRIBUTE_LIST_ACL);
    markAcls(CiscoStructureUsage.SNMP_SERVER_FILE_TRANSFER_ACL);
    markAcls(CiscoStructureUsage.SNMP_SERVER_TFTP_SERVER_LIST);
    markAcls(CiscoStructureUsage.SNMP_SERVER_COMMUNITY_ACL);
    markIpv4Acls(CiscoStructureUsage.SNMP_SERVER_COMMUNITY_ACL4);
    markIpv6Acls(CiscoStructureUsage.SNMP_SERVER_COMMUNITY_ACL6);
    markAcls(CiscoStructureUsage.SSH_ACL);
    markIpv4Acls(CiscoStructureUsage.SSH_IPV4_ACL);
    markIpv6Acls(CiscoStructureUsage.SSH_IPV6_ACL);
    markAcls(CiscoStructureUsage.WCCP_GROUP_LIST);
    markAcls(CiscoStructureUsage.WCCP_REDIRECT_LIST);
    markAcls(CiscoStructureUsage.WCCP_SERVICE_LIST);
    // mark references to mac-ACLs that may not appear in data model
    // TODO: fill in
    // mark references to route-maps that may not appear in data model
    markRouteMaps(CiscoStructureUsage.BGP_REDISTRIBUTE_OSPFV3_MAP);
    markRouteMaps(CiscoStructureUsage.BGP_ROUTE_MAP_OTHER);
    markRouteMaps(CiscoStructureUsage.BGP_VRF_AGGREGATE_ROUTE_MAP);
    markRouteMaps(CiscoStructureUsage.PIM_ACCEPT_REGISTER_ROUTE_MAP);
    // Cable
    markDepiClasses(CiscoStructureUsage.DEPI_TUNNEL_DEPI_CLASS);
    markDepiTunnels(CiscoStructureUsage.CONTROLLER_DEPI_TUNNEL);
    markDepiTunnels(CiscoStructureUsage.DEPI_TUNNEL_PROTECT_TUNNEL);
    markDocsisPolicies(CiscoStructureUsage.DOCSIS_GROUP_DOCSIS_POLICY);
    markDocsisPolicyRules(CiscoStructureUsage.DOCSIS_POLICY_DOCSIS_POLICY_RULE);
    markServiceClasses(CiscoStructureUsage.QOS_ENFORCE_RULE_SERVICE_CLASS);
    // L2tp
    markL2tpClasses(CiscoStructureUsage.DEPI_TUNNEL_L2TP_CLASS);
    // Vpn
    markIpsecProfiles(CiscoStructureUsage.TUNNEL_PROTECTION_IPSEC_PROFILE);
    markIpsecTransformSets(CiscoStructureUsage.IPSEC_PROFILE_TRANSFORM_SET);
    markKeyrings(CiscoStructureUsage.ISAKMP_PROFILE_KEYRING);
    // warn about unreferenced data structures
    warnUnusedStructure(_asPathSets, CiscoStructureType.AS_PATH_SET);
    warnUnusedCommunityLists();
    warnUnusedStructure(_cf.getDepiClasses(), CiscoStructureType.DEPI_CLASS);
    warnUnusedStructure(_cf.getDepiTunnels(), CiscoStructureType.DEPI_TUNNEL);
    warnUnusedDocsisPolicies();
    warnUnusedDocsisPolicyRules();
    warnUnusedStructure(_asPathAccessLists, CiscoStructureType.AS_PATH_ACCESS_LIST);
    warnUnusedIpAccessLists();
    warnUnusedStructure(_ipsecProfiles, CiscoStructureType.IPSEC_PROFILE);
    warnUnusedStructure(_ipsecTransformSets, CiscoStructureType.IPSEC_TRANSFORM_SET);
    warnUnusedIpv6AccessLists();
    warnUnusedKeyrings();
    warnUnusedStructure(_cf.getL2tpClasses(), CiscoStructureType.L2TP_CLASS);
    warnUnusedStructure(_macAccessLists, CiscoStructureType.MAC_ACCESS_LIST);
    warnUnusedStructure(_natPools, CiscoStructureType.NAT_POOL);
    warnUnusedStructure(_prefixLists, CiscoStructureType.PREFIX_LIST);
    warnUnusedStructure(_prefix6Lists, CiscoStructureType.PREFIX6_LIST);
    warnUnusedPeerGroups();
    warnUnusedPeerSessions();
    warnUnusedStructure(_routeMaps, CiscoStructureType.ROUTE_MAP);
    warnUnusedServiceClasses();
    c.simplifyRoutingPolicies();
    c.computeRoutingPolicySources(_w);
    return c;
}

Example 22 with Configuration

use of org.batfish.datamodel.Configuration in project batfish by batfish.

the class Subnet method toConfigurationNode.

public Configuration toConfigurationNode(AwsConfiguration awsConfiguration, Region region, Warnings warnings) {
    Configuration cfgNode = Utils.newAwsConfiguration(_subnetId, "aws");
    // add one interface that faces the instances
    String instancesIfaceName = _subnetId;
    Ip instancesIfaceIp = computeInstancesIfaceIp();
    InterfaceAddress instancesIfaceAddress = new InterfaceAddress(instancesIfaceIp, _cidrBlock.getPrefixLength());
    Utils.newInterface(instancesIfaceName, cfgNode, instancesIfaceAddress);
    // generate a prefix for the link between the VPC router and the subnet
    Pair<InterfaceAddress, InterfaceAddress> vpcSubnetLinkPrefix = awsConfiguration.getNextGeneratedLinkSubnet();
    InterfaceAddress subnetIfaceAddress = vpcSubnetLinkPrefix.getFirst();
    InterfaceAddress vpcIfaceAddress = vpcSubnetLinkPrefix.getSecond();
    // add an interface that faces the VPC router
    String subnetIfaceName = _vpcId;
    Interface subnetToVpc = Utils.newInterface(subnetIfaceName, cfgNode, subnetIfaceAddress);
    // add a corresponding interface on the VPC router facing the subnet
    Configuration vpcConfigNode = awsConfiguration.getConfigurationNodes().get(_vpcId);
    String vpcIfaceName = _subnetId;
    Utils.newInterface(vpcIfaceName, vpcConfigNode, vpcIfaceAddress);
    // add a static route on the vpc router for this subnet
    StaticRoute.Builder sb = StaticRoute.builder().setAdministrativeCost(Route.DEFAULT_STATIC_ROUTE_ADMIN).setMetric(Route.DEFAULT_STATIC_ROUTE_COST);
    StaticRoute vpcToSubnetRoute = sb.setNetwork(_cidrBlock).setNextHopIp(subnetIfaceAddress.getIp()).build();
    vpcConfigNode.getDefaultVrf().getStaticRoutes().add(vpcToSubnetRoute);
    // Install a default static route towards the VPC router.
    StaticRoute defaultRoute = sb.setNetwork(Prefix.ZERO).setNextHopIp(vpcIfaceAddress.getIp()).build();
    cfgNode.getDefaultVrf().getStaticRoutes().add(defaultRoute);
    NetworkAcl myNetworkAcl = findMyNetworkAcl(region.getNetworkAcls());
    IpAccessList inAcl = myNetworkAcl.getIngressAcl();
    IpAccessList outAcl = myNetworkAcl.getEgressAcl();
    cfgNode.getIpAccessLists().put(inAcl.getName(), inAcl);
    cfgNode.getIpAccessLists().put(outAcl.getName(), outAcl);
    subnetToVpc.setIncomingFilter(inAcl);
    subnetToVpc.setOutgoingFilter(outAcl);
    cfgNode.getVendorFamily().getAws().setVpcId(_vpcId);
    cfgNode.getVendorFamily().getAws().setSubnetId(_subnetId);
    cfgNode.getVendorFamily().getAws().setRegion(region.getName());
    return cfgNode;
}

Example 23 with Configuration

use of org.batfish.datamodel.Configuration in project batfish by batfish.

the class Utils method newAwsConfiguration.

public static Configuration newAwsConfiguration(String name, String domainName) {
    Configuration c = FACTORY.configurationBuilder().setHostname(name).setDomainName(domainName).setConfigurationFormat(ConfigurationFormat.AWS).setDefaultInboundAction(LineAction.ACCEPT).setDefaultCrossZoneAction(LineAction.ACCEPT).build();
    FACTORY.vrfBuilder().setName(Configuration.DEFAULT_VRF_NAME).setOwner(c).build();
    c.getVendorFamily().setAws(new AwsFamily());
    return c;
}

Example 24 with Configuration

use of org.batfish.datamodel.Configuration in project batfish by batfish.

the class VpnConnection method applyToVpnGateway.

public void applyToVpnGateway(AwsConfiguration awsConfiguration, Region region, Warnings warnings) {
    if (!awsConfiguration.getConfigurationNodes().containsKey(_vpnGatewayId)) {
        warnings.redFlag(String.format("VPN Gateway \"%s\" referred by VPN connection \"%s\" not found", _vpnGatewayId, _vpnConnectionId));
        return;
    }
    Configuration vpnGatewayCfgNode = awsConfiguration.getConfigurationNodes().get(_vpnGatewayId);
    for (int i = 0; i < _ipsecTunnels.size(); i++) {
        int idNum = i + 1;
        String vpnId = _vpnConnectionId + "-" + idNum;
        IpsecTunnel ipsecTunnel = _ipsecTunnels.get(i);
        if (ipsecTunnel.getCgwBgpAsn() != -1 && (_staticRoutesOnly || _routes.size() != 0)) {
            throw new BatfishException("Unexpected combination of BGP and static routes for VPN connection: \"" + _vpnConnectionId + "\"");
        }
        // create representation structures and add to configuration node
        IpsecVpn ipsecVpn = new IpsecVpn(vpnId, vpnGatewayCfgNode);
        vpnGatewayCfgNode.getIpsecVpns().put(vpnId, ipsecVpn);
        IpsecPolicy ipsecPolicy = new IpsecPolicy(vpnId);
        vpnGatewayCfgNode.getIpsecPolicies().put(vpnId, ipsecPolicy);
        ipsecVpn.setIpsecPolicy(ipsecPolicy);
        IpsecProposal ipsecProposal = new IpsecProposal(vpnId, -1);
        vpnGatewayCfgNode.getIpsecProposals().put(vpnId, ipsecProposal);
        ipsecPolicy.getProposals().put(vpnId, ipsecProposal);
        IkeGateway ikeGateway = new IkeGateway(vpnId);
        vpnGatewayCfgNode.getIkeGateways().put(vpnId, ikeGateway);
        ipsecVpn.setIkeGateway(ikeGateway);
        IkePolicy ikePolicy = new IkePolicy(vpnId);
        vpnGatewayCfgNode.getIkePolicies().put(vpnId, ikePolicy);
        ikeGateway.setIkePolicy(ikePolicy);
        IkeProposal ikeProposal = new IkeProposal(vpnId, -1);
        vpnGatewayCfgNode.getIkeProposals().put(vpnId, ikeProposal);
        ikePolicy.getProposals().put(vpnId, ikeProposal);
        String externalInterfaceName = "external" + idNum;
        InterfaceAddress externalInterfaceAddress = new InterfaceAddress(ipsecTunnel.getVgwOutsideAddress(), Prefix.MAX_PREFIX_LENGTH);
        Interface externalInterface = Utils.newInterface(externalInterfaceName, vpnGatewayCfgNode, externalInterfaceAddress);
        String vpnInterfaceName = "vpn" + idNum;
        InterfaceAddress vpnInterfaceAddress = new InterfaceAddress(ipsecTunnel.getVgwInsideAddress(), ipsecTunnel.getVgwInsidePrefixLength());
        Interface vpnInterface = Utils.newInterface(vpnInterfaceName, vpnGatewayCfgNode, vpnInterfaceAddress);
        // Set fields within representation structures
        // ipsec
        ipsecVpn.setBindInterface(vpnInterface);
        ipsecPolicy.setPfsKeyGroup(toDiffieHellmanGroup(ipsecTunnel.getIpsecPerfectForwardSecrecy()));
        ipsecProposal.setAuthenticationAlgorithm(toIpsecAuthenticationAlgorithm(ipsecTunnel.getIpsecAuthProtocol()));
        ipsecProposal.setEncryptionAlgorithm(toEncryptionAlgorithm(ipsecTunnel.getIpsecEncryptionProtocol()));
        ipsecProposal.setProtocol(toIpsecProtocol(ipsecTunnel.getIpsecProtocol()));
        ipsecProposal.setLifetimeSeconds(ipsecTunnel.getIpsecLifetime());
        // ike
        ikeGateway.setExternalInterface(externalInterface);
        ikeGateway.setAddress(ipsecTunnel.getCgwOutsideAddress());
        ikeGateway.setLocalIp(externalInterface.getAddress().getIp());
        if (ipsecTunnel.getIkePreSharedKeyHash() != null) {
            ikePolicy.setPreSharedKeyHash(ipsecTunnel.getIkePreSharedKeyHash());
            ikeProposal.setAuthenticationMethod(IkeAuthenticationMethod.PRE_SHARED_KEYS);
        }
        ikeProposal.setAuthenticationAlgorithm(toIkeAuthenticationAlgorithm(ipsecTunnel.getIkeAuthProtocol()));
        ikeProposal.setDiffieHellmanGroup(toDiffieHellmanGroup(ipsecTunnel.getIkePerfectForwardSecrecy()));
        ikeProposal.setEncryptionAlgorithm(toEncryptionAlgorithm(ipsecTunnel.getIkeEncryptionProtocol()));
        ikeProposal.setLifetimeSeconds(ipsecTunnel.getIkeLifetime());
        // bgp (if configured)
        if (ipsecTunnel.getVgwBgpAsn() != -1) {
            BgpProcess proc = vpnGatewayCfgNode.getDefaultVrf().getBgpProcess();
            if (proc == null) {
                proc = new BgpProcess();
                proc.setRouterId(ipsecTunnel.getVgwInsideAddress());
                proc.setMultipathEquivalentAsPathMatchMode(MultipathEquivalentAsPathMatchMode.EXACT_PATH);
                vpnGatewayCfgNode.getDefaultVrf().setBgpProcess(proc);
            }
            BgpNeighbor cgBgpNeighbor = new BgpNeighbor(ipsecTunnel.getCgwInsideAddress(), vpnGatewayCfgNode);
            cgBgpNeighbor.setVrf(Configuration.DEFAULT_VRF_NAME);
            proc.getNeighbors().put(cgBgpNeighbor.getPrefix(), cgBgpNeighbor);
            cgBgpNeighbor.setRemoteAs(ipsecTunnel.getCgwBgpAsn());
            cgBgpNeighbor.setLocalAs(ipsecTunnel.getVgwBgpAsn());
            cgBgpNeighbor.setLocalIp(ipsecTunnel.getVgwInsideAddress());
            cgBgpNeighbor.setDefaultMetric(BGP_NEIGHBOR_DEFAULT_METRIC);
            cgBgpNeighbor.setSendCommunity(false);
            VpnGateway vpnGateway = region.getVpnGateways().get(_vpnGatewayId);
            List<String> attachmentVpcIds = vpnGateway.getAttachmentVpcIds();
            if (attachmentVpcIds.size() != 1) {
                throw new BatfishException("Not sure what routes to advertise since VPN Gateway: \"" + _vpnGatewayId + "\" for VPN connection: \"" + _vpnConnectionId + "\" is linked to multiple VPCs");
            }
            String vpcId = attachmentVpcIds.get(0);
            // iBGP connection to VPC
            Configuration vpcNode = awsConfiguration.getConfigurationNodes().get(vpcId);
            Ip vpcIfaceAddress = vpcNode.getInterfaces().get(_vpnGatewayId).getAddress().getIp();
            Ip vgwToVpcIfaceAddress = vpnGatewayCfgNode.getInterfaces().get(vpcId).getAddress().getIp();
            BgpNeighbor vgwToVpcBgpNeighbor = new BgpNeighbor(vpcIfaceAddress, vpnGatewayCfgNode);
            proc.getNeighbors().put(vgwToVpcBgpNeighbor.getPrefix(), vgwToVpcBgpNeighbor);
            vgwToVpcBgpNeighbor.setVrf(Configuration.DEFAULT_VRF_NAME);
            vgwToVpcBgpNeighbor.setLocalAs(ipsecTunnel.getVgwBgpAsn());
            vgwToVpcBgpNeighbor.setLocalIp(vgwToVpcIfaceAddress);
            vgwToVpcBgpNeighbor.setRemoteAs(ipsecTunnel.getVgwBgpAsn());
            vgwToVpcBgpNeighbor.setDefaultMetric(BGP_NEIGHBOR_DEFAULT_METRIC);
            vgwToVpcBgpNeighbor.setSendCommunity(true);
            // iBGP connection from VPC
            BgpNeighbor vpcToVgwBgpNeighbor = new BgpNeighbor(vgwToVpcIfaceAddress, vpcNode);
            BgpProcess vpcProc = new BgpProcess();
            vpcNode.getDefaultVrf().setBgpProcess(vpcProc);
            vpcProc.setMultipathEquivalentAsPathMatchMode(MultipathEquivalentAsPathMatchMode.EXACT_PATH);
            vpcProc.setRouterId(vpcIfaceAddress);
            vpcProc.getNeighbors().put(vpcToVgwBgpNeighbor.getPrefix(), vpcToVgwBgpNeighbor);
            vpcToVgwBgpNeighbor.setVrf(Configuration.DEFAULT_VRF_NAME);
            vpcToVgwBgpNeighbor.setLocalAs(ipsecTunnel.getVgwBgpAsn());
            vpcToVgwBgpNeighbor.setLocalIp(vpcIfaceAddress);
            vpcToVgwBgpNeighbor.setRemoteAs(ipsecTunnel.getVgwBgpAsn());
            vpcToVgwBgpNeighbor.setDefaultMetric(BGP_NEIGHBOR_DEFAULT_METRIC);
            vpcToVgwBgpNeighbor.setSendCommunity(true);
            String rpRejectAllName = "~REJECT_ALL~";
            String rpAcceptAllEbgpAndSetNextHopSelfName = "~ACCEPT_ALL_EBGP_AND_SET_NEXT_HOP_SELF~";
            If acceptIffEbgp = new If();
            acceptIffEbgp.setGuard(new MatchProtocol(RoutingProtocol.BGP));
            acceptIffEbgp.setTrueStatements(ImmutableList.of(Statements.ExitAccept.toStaticStatement()));
            acceptIffEbgp.setFalseStatements(ImmutableList.of(Statements.ExitReject.toStaticStatement()));
            RoutingPolicy vgwRpAcceptAllBgp = new RoutingPolicy(rpAcceptAllEbgpAndSetNextHopSelfName, vpnGatewayCfgNode);
            vpnGatewayCfgNode.getRoutingPolicies().put(vgwRpAcceptAllBgp.getName(), vgwRpAcceptAllBgp);
            vgwRpAcceptAllBgp.setStatements(ImmutableList.of(new SetNextHop(new SelfNextHop(), false), acceptIffEbgp));
            vgwToVpcBgpNeighbor.setExportPolicy(rpAcceptAllEbgpAndSetNextHopSelfName);
            RoutingPolicy vgwRpRejectAll = new RoutingPolicy(rpRejectAllName, vpnGatewayCfgNode);
            vpnGatewayCfgNode.getRoutingPolicies().put(rpRejectAllName, vgwRpRejectAll);
            vgwToVpcBgpNeighbor.setImportPolicy(rpRejectAllName);
            String rpAcceptAllName = "~ACCEPT_ALL~";
            RoutingPolicy vpcRpAcceptAll = new RoutingPolicy(rpAcceptAllName, vpcNode);
            vpcNode.getRoutingPolicies().put(rpAcceptAllName, vpcRpAcceptAll);
            vpcRpAcceptAll.setStatements(ImmutableList.of(Statements.ExitAccept.toStaticStatement()));
            vpcToVgwBgpNeighbor.setImportPolicy(rpAcceptAllName);
            RoutingPolicy vpcRpRejectAll = new RoutingPolicy(rpRejectAllName, vpcNode);
            vpcNode.getRoutingPolicies().put(rpRejectAllName, vpcRpRejectAll);
            vpcToVgwBgpNeighbor.setExportPolicy(rpRejectAllName);
            Vpc vpc = region.getVpcs().get(vpcId);
            String originationPolicyName = vpnId + "_origination";
            RoutingPolicy originationRoutingPolicy = new RoutingPolicy(originationPolicyName, vpnGatewayCfgNode);
            vpnGatewayCfgNode.getRoutingPolicies().put(originationPolicyName, originationRoutingPolicy);
            cgBgpNeighbor.setExportPolicy(originationPolicyName);
            If originationIf = new If();
            List<Statement> statements = originationRoutingPolicy.getStatements();
            statements.add(originationIf);
            statements.add(Statements.ExitReject.toStaticStatement());
            originationIf.getTrueStatements().add(new SetOrigin(new LiteralOrigin(OriginType.IGP, null)));
            originationIf.getTrueStatements().add(Statements.ExitAccept.toStaticStatement());
            RouteFilterList originationRouteFilter = new RouteFilterList(originationPolicyName);
            vpnGatewayCfgNode.getRouteFilterLists().put(originationPolicyName, originationRouteFilter);
            vpc.getCidrBlockAssociations().forEach(prefix -> {
                RouteFilterLine matchOutgoingPrefix = new RouteFilterLine(LineAction.ACCEPT, prefix, new SubRange(prefix.getPrefixLength(), prefix.getPrefixLength()));
                originationRouteFilter.addLine(matchOutgoingPrefix);
            });
            Conjunction conj = new Conjunction();
            originationIf.setGuard(conj);
            conj.getConjuncts().add(new MatchProtocol(RoutingProtocol.STATIC));
            conj.getConjuncts().add(new MatchPrefixSet(new DestinationNetwork(), new NamedPrefixSet(originationPolicyName)));
        }
        // static routes (if configured)
        for (Prefix staticRoutePrefix : _routes) {
            StaticRoute staticRoute = StaticRoute.builder().setNetwork(staticRoutePrefix).setNextHopIp(ipsecTunnel.getCgwInsideAddress()).setAdministrativeCost(Route.DEFAULT_STATIC_ROUTE_ADMIN).setMetric(Route.DEFAULT_STATIC_ROUTE_COST).build();
            vpnGatewayCfgNode.getDefaultVrf().getStaticRoutes().add(staticRoute);
        }
    }
}

Example 25 with Configuration

use of org.batfish.datamodel.Configuration in project batfish by batfish.

the class VpnGateway method toConfigurationNode.

public Configuration toConfigurationNode(AwsConfiguration awsConfiguration, Region region, Warnings warnings) {
    Configuration cfgNode = Utils.newAwsConfiguration(_vpnGatewayId, "aws");
    cfgNode.getVendorFamily().getAws().setRegion(region.getName());
    for (String vpcId : _attachmentVpcIds) {
        String vgwIfaceName = vpcId;
        Pair<InterfaceAddress, InterfaceAddress> vpcLink = awsConfiguration.getNextGeneratedLinkSubnet();
        InterfaceAddress vgwIfaceAddress = vpcLink.getFirst();
        Utils.newInterface(vgwIfaceName, cfgNode, vgwIfaceAddress);
        // add the interface to the vpc router
        Configuration vpcConfigNode = awsConfiguration.getConfigurationNodes().get(vpcId);
        String vpcIfaceName = _vpnGatewayId;
        Interface vpcIface = new Interface(vpcIfaceName, vpcConfigNode);
        InterfaceAddress vpcIfaceAddress = vpcLink.getSecond();
        vpcIface.setAddress(vpcIfaceAddress);
        Utils.newInterface(vpcIfaceName, vpcConfigNode, vpcIfaceAddress);
        // associate this gateway with the vpc
        region.getVpcs().get(vpcId).setVpnGatewayId(_vpnGatewayId);
        // add a route on the gateway to the vpc
        Vpc vpc = region.getVpcs().get(vpcId);
        vpc.getCidrBlockAssociations().forEach(prefix -> {
            StaticRoute vgwVpcRoute = StaticRoute.builder().setNetwork(prefix).setNextHopIp(vpcIfaceAddress.getIp()).setAdministrativeCost(Route.DEFAULT_STATIC_ROUTE_ADMIN).setMetric(Route.DEFAULT_STATIC_ROUTE_COST).build();
            cfgNode.getDefaultVrf().getStaticRoutes().add(vgwVpcRoute);
        });
    }
    return cfgNode;
}