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Diffstat (limited to 'src/org/xbill/DNS/IPSECKEYRecord.java')
| -rw-r--r-- | src/org/xbill/DNS/IPSECKEYRecord.java | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/src/org/xbill/DNS/IPSECKEYRecord.java b/src/org/xbill/DNS/IPSECKEYRecord.java new file mode 100644 index 0000000..7eb2956 --- /dev/null +++ b/src/org/xbill/DNS/IPSECKEYRecord.java @@ -0,0 +1,231 @@ +// Copyright (c) 2004 Brian Wellington (bwelling@xbill.org) + +package org.xbill.DNS; + +import java.io.*; +import java.net.*; +import org.xbill.DNS.utils.*; + +/** + * IPsec Keying Material (RFC 4025) + * + * @author Brian Wellington + */ + +public class IPSECKEYRecord extends Record { + +private static final long serialVersionUID = 3050449702765909687L; + +public static class Algorithm { + private Algorithm() {} + + public static final int DSA = 1; + public static final int RSA = 2; +} + +public static class Gateway { + private Gateway() {} + + public static final int None = 0; + public static final int IPv4 = 1; + public static final int IPv6 = 2; + public static final int Name = 3; +} + +private int precedence; +private int gatewayType; +private int algorithmType; +private Object gateway; +private byte [] key; + +IPSECKEYRecord() {} + +Record +getObject() { + return new IPSECKEYRecord(); +} + +/** + * Creates an IPSECKEY Record from the given data. + * @param precedence The record's precedence. + * @param gatewayType The record's gateway type. + * @param algorithmType The record's algorithm type. + * @param gateway The record's gateway. + * @param key The record's public key. + */ +public +IPSECKEYRecord(Name name, int dclass, long ttl, int precedence, + int gatewayType, int algorithmType, Object gateway, + byte [] key) +{ + super(name, Type.IPSECKEY, dclass, ttl); + this.precedence = checkU8("precedence", precedence); + this.gatewayType = checkU8("gatewayType", gatewayType); + this.algorithmType = checkU8("algorithmType", algorithmType); + switch (gatewayType) { + case Gateway.None: + this.gateway = null; + break; + case Gateway.IPv4: + if (!(gateway instanceof InetAddress)) + throw new IllegalArgumentException("\"gateway\" " + + "must be an IPv4 " + + "address"); + this.gateway = gateway; + break; + case Gateway.IPv6: + if (!(gateway instanceof Inet6Address)) + throw new IllegalArgumentException("\"gateway\" " + + "must be an IPv6 " + + "address"); + this.gateway = gateway; + break; + case Gateway.Name: + if (!(gateway instanceof Name)) + throw new IllegalArgumentException("\"gateway\" " + + "must be a DNS " + + "name"); + this.gateway = checkName("gateway", (Name) gateway); + break; + default: + throw new IllegalArgumentException("\"gatewayType\" " + + "must be between 0 and 3"); + } + + this.key = key; +} + +void +rrFromWire(DNSInput in) throws IOException { + precedence = in.readU8(); + gatewayType = in.readU8(); + algorithmType = in.readU8(); + switch (gatewayType) { + case Gateway.None: + gateway = null; + break; + case Gateway.IPv4: + gateway = InetAddress.getByAddress(in.readByteArray(4)); + break; + case Gateway.IPv6: + gateway = InetAddress.getByAddress(in.readByteArray(16)); + break; + case Gateway.Name: + gateway = new Name(in); + break; + default: + throw new WireParseException("invalid gateway type"); + } + if (in.remaining() > 0) + key = in.readByteArray(); +} + +void +rdataFromString(Tokenizer st, Name origin) throws IOException { + precedence = st.getUInt8(); + gatewayType = st.getUInt8(); + algorithmType = st.getUInt8(); + switch (gatewayType) { + case Gateway.None: + String s = st.getString(); + if (!s.equals(".")) + throw new TextParseException("invalid gateway format"); + gateway = null; + break; + case Gateway.IPv4: + gateway = st.getAddress(Address.IPv4); + break; + case Gateway.IPv6: + gateway = st.getAddress(Address.IPv6); + break; + case Gateway.Name: + gateway = st.getName(origin); + break; + default: + throw new WireParseException("invalid gateway type"); + } + key = st.getBase64(false); +} + +String +rrToString() { + StringBuffer sb = new StringBuffer(); + sb.append(precedence); + sb.append(" "); + sb.append(gatewayType); + sb.append(" "); + sb.append(algorithmType); + sb.append(" "); + switch (gatewayType) { + case Gateway.None: + sb.append("."); + break; + case Gateway.IPv4: + case Gateway.IPv6: + InetAddress gatewayAddr = (InetAddress) gateway; + sb.append(gatewayAddr.getHostAddress()); + break; + case Gateway.Name: + sb.append(gateway); + break; + } + if (key != null) { + sb.append(" "); + sb.append(base64.toString(key)); + } + return sb.toString(); +} + +/** Returns the record's precedence. */ +public int +getPrecedence() { + return precedence; +} + +/** Returns the record's gateway type. */ +public int +getGatewayType() { + return gatewayType; +} + +/** Returns the record's algorithm type. */ +public int +getAlgorithmType() { + return algorithmType; +} + +/** Returns the record's gateway. */ +public Object +getGateway() { + return gateway; +} + +/** Returns the record's public key */ +public byte [] +getKey() { + return key; +} + +void +rrToWire(DNSOutput out, Compression c, boolean canonical) { + out.writeU8(precedence); + out.writeU8(gatewayType); + out.writeU8(algorithmType); + switch (gatewayType) { + case Gateway.None: + break; + case Gateway.IPv4: + case Gateway.IPv6: + InetAddress gatewayAddr = (InetAddress) gateway; + out.writeByteArray(gatewayAddr.getAddress()); + break; + case Gateway.Name: + Name gatewayName = (Name) gateway; + gatewayName.toWire(out, null, canonical); + break; + } + if (key != null) + out.writeByteArray(key); +} + +} |