diff options
Diffstat (limited to 'src/org/xbill/DNS/SIGBase.java')
-rw-r--r-- | src/org/xbill/DNS/SIGBase.java | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/src/org/xbill/DNS/SIGBase.java b/src/org/xbill/DNS/SIGBase.java new file mode 100644 index 0000000..6e5f12d --- /dev/null +++ b/src/org/xbill/DNS/SIGBase.java @@ -0,0 +1,193 @@ +// Copyright (c) 1999-2004 Brian Wellington (bwelling@xbill.org) + +package org.xbill.DNS; + +import java.io.*; +import java.util.*; +import org.xbill.DNS.utils.*; + +/** + * The base class for SIG/RRSIG records, which have identical formats + * + * @author Brian Wellington + */ + +abstract class SIGBase extends Record { + +private static final long serialVersionUID = -3738444391533812369L; + +protected int covered; +protected int alg, labels; +protected long origttl; +protected Date expire, timeSigned; +protected int footprint; +protected Name signer; +protected byte [] signature; + +protected +SIGBase() {} + +public +SIGBase(Name name, int type, int dclass, long ttl, int covered, int alg, + long origttl, Date expire, Date timeSigned, int footprint, Name signer, + byte [] signature) +{ + super(name, type, dclass, ttl); + Type.check(covered); + TTL.check(origttl); + this.covered = covered; + this.alg = checkU8("alg", alg); + this.labels = name.labels() - 1; + if (name.isWild()) + this.labels--; + this.origttl = origttl; + this.expire = expire; + this.timeSigned = timeSigned; + this.footprint = checkU16("footprint", footprint); + this.signer = checkName("signer", signer); + this.signature = signature; +} + +void +rrFromWire(DNSInput in) throws IOException { + covered = in.readU16(); + alg = in.readU8(); + labels = in.readU8(); + origttl = in.readU32(); + expire = new Date(1000 * in.readU32()); + timeSigned = new Date(1000 * in.readU32()); + footprint = in.readU16(); + signer = new Name(in); + signature = in.readByteArray(); +} + +void +rdataFromString(Tokenizer st, Name origin) throws IOException { + String typeString = st.getString(); + covered = Type.value(typeString); + if (covered < 0) + throw st.exception("Invalid type: " + typeString); + String algString = st.getString(); + alg = DNSSEC.Algorithm.value(algString); + if (alg < 0) + throw st.exception("Invalid algorithm: " + algString); + labels = st.getUInt8(); + origttl = st.getTTL(); + expire = FormattedTime.parse(st.getString()); + timeSigned = FormattedTime.parse(st.getString()); + footprint = st.getUInt16(); + signer = st.getName(origin); + signature = st.getBase64(); +} + +/** Converts the RRSIG/SIG Record to a String */ +String +rrToString() { + StringBuffer sb = new StringBuffer(); + sb.append (Type.string(covered)); + sb.append (" "); + sb.append (alg); + sb.append (" "); + sb.append (labels); + sb.append (" "); + sb.append (origttl); + sb.append (" "); + if (Options.check("multiline")) + sb.append ("(\n\t"); + sb.append (FormattedTime.format(expire)); + sb.append (" "); + sb.append (FormattedTime.format(timeSigned)); + sb.append (" "); + sb.append (footprint); + sb.append (" "); + sb.append (signer); + if (Options.check("multiline")) { + sb.append("\n"); + sb.append(base64.formatString(signature, 64, "\t", + true)); + } else { + sb.append (" "); + sb.append(base64.toString(signature)); + } + return sb.toString(); +} + +/** Returns the RRset type covered by this signature */ +public int +getTypeCovered() { + return covered; +} + +/** + * Returns the cryptographic algorithm of the key that generated the signature + */ +public int +getAlgorithm() { + return alg; +} + +/** + * Returns the number of labels in the signed domain name. This may be + * different than the record's domain name if the record is a wildcard + * record. + */ +public int +getLabels() { + return labels; +} + +/** Returns the original TTL of the RRset */ +public long +getOrigTTL() { + return origttl; +} + +/** Returns the time at which the signature expires */ +public Date +getExpire() { + return expire; +} + +/** Returns the time at which this signature was generated */ +public Date +getTimeSigned() { + return timeSigned; +} + +/** Returns The footprint/key id of the signing key. */ +public int +getFootprint() { + return footprint; +} + +/** Returns the owner of the signing key */ +public Name +getSigner() { + return signer; +} + +/** Returns the binary data representing the signature */ +public byte [] +getSignature() { + return signature; +} + +void +setSignature(byte [] signature) { + this.signature = signature; +} + +void +rrToWire(DNSOutput out, Compression c, boolean canonical) { + out.writeU16(covered); + out.writeU8(alg); + out.writeU8(labels); + out.writeU32(origttl); + out.writeU32(expire.getTime() / 1000); + out.writeU32(timeSigned.getTime() / 1000); + out.writeU16(footprint); + signer.toWire(out, null, canonical); + out.writeByteArray(signature); +} + +} |