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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;
import io.fd.hc2vpp.acl.util.AclContextManager;
import io.fd.hc2vpp.acl.util.ace.extractor.MacIpAceDataExtractor;
import io.fd.hc2vpp.acl.util.ace.extractor.StandardAceDataExtractor;
import io.fd.hc2vpp.acl.util.protocol.ProtoPreBindRuleProducer;
import io.fd.honeycomb.translate.MappingContext;
import io.fd.vpp.jvpp.acl.types.AclRule;
import io.fd.vpp.jvpp.acl.types.MacipAclRule;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160708.access.lists.acl.access.list.entries.Ace;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160708.access.lists.acl.access.list.entries.AceBuilder;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160708.access.lists.acl.access.list.entries.AceKey;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160708.access.lists.acl.access.list.entries.ace.MatchesBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.acl.rev170615.access.lists.acl.access.list.entries.ace.matches.ace.type.VppAce;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.acl.rev170615.access.lists.acl.access.list.entries.ace.matches.ace.type.VppAceBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.acl.rev170615.access.lists.acl.access.list.entries.ace.matches.ace.type.VppMacipAce;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.acl.rev170615.access.lists.acl.access.list.entries.ace.matches.ace.type.VppMacipAceBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.acl.rev170615.access.lists.acl.access.list.entries.ace.matches.ace.type.vpp.ace.VppAceNodesBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.acl.rev170615.access.lists.acl.access.list.entries.ace.matches.ace.type.vpp.macip.ace.VppMacipAceNodesBuilder;
/**
* Convert between Ace's and vpp rules.
*/
public interface AceConverter extends MacIpAceDataExtractor, StandardAceDataExtractor, ProtoPreBindRuleProducer {
default MacipAclRule[] toMacIpAclRules(@Nonnull final List<Ace> aces) {
return aces.stream()
.map(ace -> {
final VppMacipAce macIpAce = fromMacIpAce(ace);
MacipAclRule rule = new MacipAclRule();
rule.srcMac = sourceMacAsBytes(macIpAce);
rule.srcMacMask = sourceMacMaskAsBytes(macIpAce);
rule.isPermit = macIpAction(ace);
if (macIpIsIpv6(macIpAce)) {
rule.isIpv6 = 1;
rule.srcIpAddr = ipv6Address(macIpAce);
rule.srcIpPrefixLen = ipv6AddressPrefix(macIpAce);
} else {
rule.isIpv6 = 0;
rule.srcIpAddr = ipv4Address(macIpAce);
rule.srcIpPrefixLen = ipv4AddressPrefix(macIpAce);
}
return rule;
})
.collect(Collectors.toList())
.toArray(new MacipAclRule[aces.size()]);
}
default AclRule[] toStandardAclRules(@Nonnull final List<Ace> aces) {
return aces.stream()
.map(ace -> {
final VppAce standardAce = fromStandardAce(ace);
// pre-bind rule with protocol based attributes (if present)
AclRule rule = createPreBindRule(standardAce);
rule.isPermit = standardAction(ace);
if (standardIsIpv6(standardAce, ace.getMatches())) {
rule.isIpv6 = 1;
rule.srcIpAddr = ipv6SourceAddress(standardAce);
rule.srcIpPrefixLen = ipv6SourceAddressPrefix(standardAce);
rule.dstIpAddr = ipv6DestinationAddress(standardAce);
rule.dstIpPrefixLen = ipv6DestinationAddressPrefix(standardAce);
} else {
rule.isIpv6 = 0;
rule.srcIpAddr = ipv4SourceAddress(standardAce);
rule.srcIpPrefixLen = ipv4SourceAddressPrefix(standardAce);
rule.dstIpAddr = ipv4DestinationAddress(standardAce);
rule.dstIpPrefixLen = ipv4DestinationAddressPrefix(standardAce);
}
return rule;
})
.collect(Collectors.toList())
.toArray(new AclRule[aces.size()]);
}
default List<Ace> toMacIpAces(final String aclName, @Nonnull MacipAclRule[] rules,
@Nonnull final AclContextManager macipAclContext,
@Nonnull final MappingContext mappingContext) {
final List<Ace> aces = new ArrayList<>(rules.length);
int i = 0;
for (final MacipAclRule rule : rules) {
final AceBuilder ace = new AceBuilder();
final VppMacipAceBuilder aceType = new VppMacipAceBuilder();
final VppMacipAceNodesBuilder nodes = new VppMacipAceNodesBuilder();
nodes.setAceIpVersion(ipVersion(rule));
nodes.setSourceMacAddress(sourceMac(rule));
nodes.setSourceMacAddressMask(sourceMacMask(rule));
aceType.setVppMacipAceNodes(nodes.build());
ace.setMatches(new MatchesBuilder().setAceType(aceType.build()).build());
ace.setActions(actions(rule.isPermit));
final String aceName = macipAclContext.getAceName(aclName, i++, mappingContext);
ace.setRuleName(aceName);
ace.withKey(new AceKey(aceName));
aces.add(ace.build());
}
return aces;
}
default List<Ace> toStandardAces(final String aclName, @Nonnull AclRule[] rules,
@Nonnull final AclContextManager standardAclContext,
@Nonnull final MappingContext mappingContext) {
final List<Ace> aces = new ArrayList<>(rules.length);
int i = 0;
for (final AclRule rule : rules) {
final AceBuilder ace = new AceBuilder();
final VppAceBuilder aceType = new VppAceBuilder();
final VppAceNodesBuilder nodes = new VppAceNodesBuilder();
nodes.setAceIpVersion(ipVersion(rule));
nodes.setIpProtocol(parseProtocol(rule));
aceType.setVppAceNodes(nodes.build());
ace.setMatches(new MatchesBuilder().setAceType(aceType.build()).build());
ace.setActions(actions(rule.isPermit));
final String aceName = standardAclContext.getAceName(aclName, i++, mappingContext);
ace.setRuleName(aceName);
ace.withKey(new AceKey(aceName));
aces.add(ace.build());
}
return aces;
}
}
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