diff options
Diffstat (limited to 'v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/interfaces/ip/AddressCustomizer.java')
-rw-r--r-- | v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/interfaces/ip/AddressCustomizer.java | 107 |
1 files changed, 82 insertions, 25 deletions
diff --git a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/interfaces/ip/AddressCustomizer.java b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/interfaces/ip/AddressCustomizer.java index c99fcd29f..0b62bc027 100644 --- a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/interfaces/ip/AddressCustomizer.java +++ b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/interfaces/ip/AddressCustomizer.java @@ -13,6 +13,7 @@ * See the License for the specific language governing permissions and * limitations under the License. */ + package io.fd.honeycomb.v3po.translate.v3po.interfaces.ip; import static com.google.common.base.Preconditions.checkArgument; @@ -34,6 +35,8 @@ import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ip.rev14061 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ip.rev140616.interfaces._interface.ipv4.address.Subnet; import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ip.rev140616.interfaces._interface.ipv4.address.subnet.Netmask; import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ip.rev140616.interfaces._interface.ipv4.address.subnet.PrefixLength; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ip.rev140616.interfaces._interface.ipv4.address.subnet.PrefixLengthBuilder; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.DottedQuad; import org.opendaylight.yangtools.yang.binding.DataObject; import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; import org.openvpp.jvpp.VppBaseCallException; @@ -45,8 +48,6 @@ import org.slf4j.LoggerFactory; /** * Customizer for writing {@link Address} - * - * @author jsrnicek */ public class AddressCustomizer extends FutureJVppCustomizer implements ListWriterCustomizer<Address, AddressKey> { @@ -60,29 +61,30 @@ public class AddressCustomizer extends FutureJVppCustomizer implements ListWrite @Override public void writeCurrentAttributes(InstanceIdentifier<Address> id, Address dataAfter, WriteContext writeContext) - throws WriteFailedException { + throws WriteFailedException { setAddress(true, id, dataAfter, writeContext); } @Override public void updateCurrentAttributes(InstanceIdentifier<Address> id, Address dataBefore, Address dataAfter, - WriteContext writeContext) throws WriteFailedException { - throw new WriteFailedException.UpdateFailedException(id,dataBefore,dataAfter,new UnsupportedOperationException("Operation not supported")); + WriteContext writeContext) throws WriteFailedException { + throw new WriteFailedException.UpdateFailedException(id, dataBefore, dataAfter, + new UnsupportedOperationException("Operation not supported")); } @Override public void deleteCurrentAttributes(InstanceIdentifier<Address> id, Address dataBefore, WriteContext writeContext) - throws WriteFailedException { + throws WriteFailedException { setAddress(false, id, dataBefore, writeContext); } @Override public Optional<List<Address>> extract(InstanceIdentifier<Address> currentId, DataObject parentData) { - return Optional.fromNullable((((Ipv4)parentData).getAddress())); + return Optional.fromNullable((((Ipv4) parentData).getAddress())); } - private void setAddress(boolean add,final InstanceIdentifier<Address> id, final Address address, - final WriteContext writeContext) throws WriteFailedException { + private void setAddress(boolean add, final InstanceIdentifier<Address> id, final Address address, + final WriteContext writeContext) throws WriteFailedException { final String interfaceName = id.firstKeyOf(Interface.class).getName(); final int swIfc = interfaceContext.getIndex(interfaceName, writeContext.getMappingContext()); @@ -90,9 +92,9 @@ public class AddressCustomizer extends FutureJVppCustomizer implements ListWrite Subnet subnet = address.getSubnet(); if (subnet instanceof PrefixLength) { - setPrefixLengthSubnet(add,id, interfaceName, swIfc, address, (PrefixLength) subnet); + setPrefixLengthSubnet(add, id, interfaceName, swIfc, address, (PrefixLength) subnet); } else if (subnet instanceof Netmask) { - setNetmaskSubnet(); + setNetmaskSubnet(add, id, interfaceName, swIfc, address, (Netmask) subnet); } else { // FIXME how does choice extensibility work // FIXME it is not even possible to create a dedicated @@ -105,40 +107,95 @@ public class AddressCustomizer extends FutureJVppCustomizer implements ListWrite } } - private void setNetmaskSubnet() { - // FIXME - throw new UnsupportedOperationException("Unimplemented"); + private void setNetmaskSubnet(final boolean add, final InstanceIdentifier<Address> id, final String name, + final int swIfc, + final Address ipv4Addr, final Netmask subnet) throws WriteFailedException { + LOG.debug("Setting Subnet(subnet-mask) for interface: {}, {}. Subnet: {}, Ipv4: {}", name, swIfc, subnet, + ipv4Addr); + + byte[] addr = TranslateUtils.ipv4AddressNoZoneToArray(ipv4Addr.getIp()); + final DottedQuad netmask = subnet.getNetmask(); + + checkNotNull(addr, "Null address"); + checkNotNull(netmask, "Null netmask"); + + // find netmask bit-length + final short subnetLength = getSubnetMaskLength(netmask.getValue()); + PrefixLengthBuilder lengthBuilder = new PrefixLengthBuilder().setPrefixLength(subnetLength); + + setPrefixLengthSubnet(add, id, name, swIfc, ipv4Addr, lengthBuilder.build()); + } + + /** + * Returns the prefix size in bits of the specified subnet mask. Example: For the subnet mask 255.255.255.128 it + * returns 25 while for 255.0.0.0 it returns 8. If the passed subnetMask array is not complete or contains not only + * leading ones, IllegalArgumentExpression is thrown + * + * @param mask the subnet mask in dot notation 255.255.255.255 + * @return the prefix length as number of bits + */ + private static short getSubnetMaskLength(final String mask) { + String[] maskParts = mask.split("\\."); + + final int DOTTED_QUAD_MASK_LENGHT = 4; + final int IPV4_ADDRESS_PART_BITS_COUNT = 8; + final int NETMASK_PART_LIMIT = 256; // 2 power to 8 + + checkArgument(maskParts.length == DOTTED_QUAD_MASK_LENGHT, + "Network mask %s is not in Quad Dotted Decimal notation!", mask); + + long maskAsNumber = 0; + for (int i = 0; i < DOTTED_QUAD_MASK_LENGHT; i++) { + maskAsNumber <<= IPV4_ADDRESS_PART_BITS_COUNT; + int value = Integer.parseInt(maskParts[i]); + checkArgument(value < NETMASK_PART_LIMIT, "Network mask %s contains invalid number(s) over 255!", mask); + checkArgument(value >= 0, "Network mask %s contains invalid negative number(s)!", mask); + maskAsNumber += value; + } + + String bits = Long.toBinaryString(maskAsNumber); + checkArgument(bits.length() == IPV4_ADDRESS_PART_BITS_COUNT * DOTTED_QUAD_MASK_LENGHT, + "Incorrect network mask %s", mask); + final int leadingOnes = bits.indexOf('0'); + checkArgument(leadingOnes != -1, "Broadcast address %s is not allowed!", mask); + checkArgument(bits.substring(leadingOnes).indexOf('1') == -1, + "Non-contiguous network mask %s is not allowed!", mask); + return (short) leadingOnes; } - private void setPrefixLengthSubnet(boolean add,final InstanceIdentifier<Address> id, final String name, final int swIfc, - final Address address, final PrefixLength subnet) throws WriteFailedException { + private void setPrefixLengthSubnet(boolean add, final InstanceIdentifier<Address> id, final String name, + final int swIfc, + final Address address, final PrefixLength subnet) throws WriteFailedException { try { - Short plen = subnet.getPrefixLength(); LOG.debug("Setting Subnet(prefix-length) for interface: {}, {}. Subnet: {}, Address: {}", name, swIfc, - subnet, address); - - byte[] addr = TranslateUtils.ipv4AddressNoZoneToArray(address.getIp()); + subnet, address); + final Short plen = subnet.getPrefixLength(); checkArgument(plen > 0, "Invalid length"); + + final byte[] addr = TranslateUtils.ipv4AddressNoZoneToArray(address.getIp()); checkNotNull(addr, "Null address"); - final CompletionStage<SwInterfaceAddDelAddressReply> swInterfaceAddDelAddressReplyCompletionStage = getFutureJVpp() - .swInterfaceAddDelAddress(getSwInterfaceAddDelAddressRequest(swIfc, TranslateUtils.booleanToByte(add) /* isAdd */, + final CompletionStage<SwInterfaceAddDelAddressReply> swInterfaceAddDelAddressReplyCompletionStage = + getFutureJVpp() + .swInterfaceAddDelAddress( + getSwInterfaceAddDelAddressRequest(swIfc, TranslateUtils.booleanToByte(add) /* isAdd */, (byte) 0 /* isIpv6 */, (byte) 0 /* delAll */, plen.byteValue(), addr)); TranslateUtils.getReply(swInterfaceAddDelAddressReplyCompletionStage.toCompletableFuture()); LOG.debug("Subnet(prefix-length) set successfully for interface: {}, {}, Subnet: {}, Address: {}", name, - swIfc, subnet, address); + swIfc, subnet, address); } catch (VppBaseCallException e) { LOG.warn("Failed to set Subnet(prefix-length) for interface: {}, {}, Subnet: {}, Address: {}", name, swIfc, - subnet, address); + subnet, address); throw new WriteFailedException(id, "Unable to handle subnet of type " + subnet.getClass(), e); } } private SwInterfaceAddDelAddress getSwInterfaceAddDelAddressRequest(final int swIfc, final byte isAdd, - final byte ipv6, final byte deleteAll, final byte length, final byte[] addr) { + final byte ipv6, final byte deleteAll, + final byte length, final byte[] addr) { final SwInterfaceAddDelAddress swInterfaceAddDelAddress = new SwInterfaceAddDelAddress(); swInterfaceAddDelAddress.swIfIndex = swIfc; swInterfaceAddDelAddress.isAdd = isAdd; |