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/*
* Copyright (c) 2016 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.
*/
package io.fd.hc2vpp.acl.util.ace.extractor;
import io.fd.hc2vpp.common.translate.util.MacTranslator;
import io.fd.vpp.jvpp.acl.types.MacipAclRule;
import java.util.Optional;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev181001.Accept;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev181001.acls.acl.aces.Ace;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev181001.acls.acl.aces.ace.Actions;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev181001.acls.acl.aces.ace.matches.L3;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev181001.acls.acl.aces.ace.matches.l3.Ipv4;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev181001.acls.acl.aces.ace.matches.l3.Ipv4Builder;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev181001.acls.acl.aces.ace.matches.l3.Ipv6;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev181001.acls.acl.aces.ace.matches.l3.Ipv6Builder;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Prefix;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.packet.fields.rev181001.acl.ipv4.header.fields.SourceNetwork;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.packet.fields.rev181001.acl.ipv4.header.fields.source.network.SourceIpv4Network;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.packet.fields.rev181001.acl.ipv4.header.fields.source.network.SourceIpv4NetworkBuilder;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.packet.fields.rev181001.acl.ipv6.header.fields.source.network.SourceIpv6Network;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.packet.fields.rev181001.acl.ipv6.header.fields.source.network.SourceIpv6NetworkBuilder;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.MacAddress;
public interface MacIpAceDataExtractor extends AddressExtractor, MacTranslator {
default byte[] sourceMacAsBytes(final MacAddress mac) {
return macToByteArray(Optional.ofNullable(mac)
.map(MacAddress::getValue)
.orElse(Impl.DEFAULT_MAC));
}
default byte[] sourceMacMaskAsBytes(final MacAddress mac) {
return macToByteArray(Optional.ofNullable(mac)
.map(MacAddress::getValue)
.orElse(Impl.DEFAULT_MAC_MASK));
}
default byte[] ipv4Address(@Nonnull final SourceNetwork network) {
return extractIp4Address(extractV4NetworkAddressOrNull(network));
}
default byte ipv4AddressPrefix(@Nonnull final SourceNetwork network) {
return extractIp4AddressPrefix(extractV4NetworkAddressOrNull(network));
}
static Ipv4Prefix extractV4NetworkAddressOrNull(final @Nonnull SourceNetwork network) {
return Optional.of(network).filter(net -> net instanceof SourceIpv4Network)
.map(SourceIpv4Network.class::cast)
.map(SourceIpv4Network::getSourceIpv4Network)
.orElse(null);
}
default byte[] ipv6Address(
@Nonnull final org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.packet.fields.rev181001.acl.ipv6.header.fields.SourceNetwork network) {
return extractIp6Address(extractV6NetworkAddressOrNull(network));
}
default byte ipv6AddressPrefix(
@Nonnull final org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.packet.fields.rev181001.acl.ipv6.header.fields.SourceNetwork network) {
return extractIp6AddressPrefix(extractV6NetworkAddressOrNull(network));
}
default Ipv6Prefix extractV6NetworkAddressOrNull(
@Nonnull final org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.packet.fields.rev181001.acl.ipv6.header.fields.SourceNetwork network) {
return Optional.of(network).filter(net -> net instanceof SourceIpv6Network)
.map(SourceIpv6Network.class::cast)
.map(SourceIpv6Network::getSourceIpv6Network)
.orElse(null);
}
/**
* Only 0 and 1 are allowed for mac-ip
*/
default byte macIpAction(@Nonnull final Ace ace) {
// action choice itself has default, but nothing stops us from not defining actions container itself
Actions actions = Optional.ofNullable(ace.getActions()).orElseThrow(
() -> new IllegalArgumentException(String.format("Unable to extract Action from %s", ace)));
if (actions.getForwarding() != null) {
if (ace.getActions().getForwarding().equals(Accept.class)) {
return 1;
} else {
return 0;
}
} else {
throw new IllegalArgumentException(
String.format("Unsupported packet-handling action %s for ACE %s", actions, ace));
}
}
default L3 parseMacIpAceL3(@Nonnull final MacipAclRule rule) {
if (rule.isIpv6 == 0) {
return ip4L3(rule);
} else {
return ip6L3(rule);
}
}
default Ipv4 ip4L3(@Nonnull final MacipAclRule rule) {
final Ipv4Builder ipv4Builder = new Ipv4Builder();
if (rule.srcIpAddr != null && rule.srcIpAddr.length != 0) {
ipv4Builder.setIpv4(
new org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev181001.acls.acl.aces.ace.matches.l3.ipv4.Ipv4Builder()
.setSourceNetwork(new SourceIpv4NetworkBuilder()
.setSourceIpv4Network(
toIpv4Prefix(truncateIp4Array(rule.srcIpAddr), rule.srcIpPrefixLen))
.build())
.build());
}
return ipv4Builder.build();
}
default Ipv6 ip6L3(@Nonnull final MacipAclRule rule) {
final Ipv6Builder ipv6Builder = new Ipv6Builder();
if (rule.srcIpAddr != null && rule.srcIpAddr.length != 0) {
ipv6Builder.setIpv6(
new org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev181001.acls.acl.aces.ace.matches.l3.ipv6.Ipv6Builder()
.setSourceNetwork(new SourceIpv6NetworkBuilder()
.setSourceIpv6Network(toIpv6Prefix(rule.srcIpAddr, rule.srcIpPrefixLen))
.build())
.build());
}
return ipv6Builder.build();
}
default MacAddress sourceMac(@Nonnull final MacipAclRule rule) {
return new MacAddress(byteArrayToMacSeparated(rule.srcMac != null
? rule.srcMac
: Impl.DEFAULT_MAC_BYTES));
}
default MacAddress sourceMacMask(@Nonnull final MacipAclRule rule) {
return new MacAddress(byteArrayToMacSeparated(rule.srcMacMask != null
? rule.srcMacMask
: Impl.DEFAULT_MAC_MASK_BYTES));
}
final class Impl {
private static final String DEFAULT_MAC = "00:00:00:00:00:00";
private static final String DEFAULT_MAC_MASK = "00:00:00:00:00:00";
private static final byte[] DEFAULT_MAC_BYTES = {0, 0, 0, 0, 0, 0};
private static final byte[] DEFAULT_MAC_MASK_BYTES = {0, 0, 0, 0, 0, 0};
}
}
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