/* * TeleStax, Open Source Cloud Communications Copyright 2012. * and individual contributors * by the @authors tag. See the copyright.txt in the distribution for a * full listing of individual contributors. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ package org.mobicents.protocols.ss7.map.service.mobility.authentication; import java.io.IOException; import org.mobicents.protocols.asn.AsnException; import org.mobicents.protocols.asn.AsnInputStream; import org.mobicents.protocols.asn.AsnOutputStream; import org.mobicents.protocols.asn.Tag; import org.mobicents.protocols.ss7.map.api.MAPException; import org.mobicents.protocols.ss7.map.api.MAPParsingComponentException; import org.mobicents.protocols.ss7.map.api.MAPParsingComponentExceptionReason; import org.mobicents.protocols.ss7.map.api.service.mobility.authentication.AuthenticationQuintuplet; import org.mobicents.protocols.ss7.map.primitives.MAPAsnPrimitive; /** * * @author sergey vetyutnev * */ public class AuthenticationQuintupletImpl implements AuthenticationQuintuplet, MAPAsnPrimitive { public static final String _PrimitiveName = "AuthenticationQuintuplet"; private byte[] rand; private byte[] xres; private byte[] ck; private byte[] ik; private byte[] autn; public AuthenticationQuintupletImpl() { } public AuthenticationQuintupletImpl(byte[] rand, byte[] xres, byte[] ck, byte[] ik, byte[] autn) { this.rand = rand; this.xres = xres; this.ck = ck; this.ik = ik; this.autn = autn; } public byte[] getRand() { return rand; } public byte[] getXres() { return xres; } public byte[] getCk() { return ck; } public byte[] getIk() { return ik; } public byte[] getAutn() { return autn; } public int getTag() throws MAPException { return Tag.SEQUENCE; } public int getTagClass() { return Tag.CLASS_UNIVERSAL; } public boolean getIsPrimitive() { return false; } public void decodeAll(AsnInputStream ansIS) throws MAPParsingComponentException { try { int length = ansIS.readLength(); this._decode(ansIS, length); } catch (IOException e) { throw new MAPParsingComponentException("IOException when decoding " + _PrimitiveName + ": " + e.getMessage(), e, MAPParsingComponentExceptionReason.MistypedParameter); } catch (AsnException e) { throw new MAPParsingComponentException("AsnException when decoding " + _PrimitiveName + ": " + e.getMessage(), e, MAPParsingComponentExceptionReason.MistypedParameter); } } public void decodeData(AsnInputStream ansIS, int length) throws MAPParsingComponentException { try { this._decode(ansIS, length); } catch (IOException e) { throw new MAPParsingComponentException("IOException when decoding " + _PrimitiveName + ": " + e.getMessage(), e, MAPParsingComponentExceptionReason.MistypedParameter); } catch (AsnException e) { throw new MAPParsingComponentException("AsnException when decoding " + _PrimitiveName + ": " + e.getMessage(), e, MAPParsingComponentExceptionReason.MistypedParameter); } } private void _decode(AsnInputStream ansIS, int length) throws MAPParsingComponentException, IOException, AsnException { this.rand = null; this.xres = null; this.ck = null; this.ik = null; this.autn = null; AsnInputStream ais = ansIS.readSequenceStreamData(length); int num = 0; while (true) { if (ais.available() == 0) break; int tag = ais.readTag(); switch (num) { case 0: // rand if (ais.getTagClass() != Tag.CLASS_UNIVERSAL || !ais.isTagPrimitive() || tag != Tag.STRING_OCTET) throw new MAPParsingComponentException("Error while decoding " + _PrimitiveName + ".rand: Parameter 0 bad tag or tag class or is not primitive", MAPParsingComponentExceptionReason.MistypedParameter); this.rand = ais.readOctetString(); if (this.rand.length != 16) throw new MAPParsingComponentException("Error while decoding " + _PrimitiveName + ".rand: Bad field length: 16 is needed, found: " + this.rand.length, MAPParsingComponentExceptionReason.MistypedParameter); break; case 1: // xres if (ais.getTagClass() != Tag.CLASS_UNIVERSAL || !ais.isTagPrimitive() || tag != Tag.STRING_OCTET) throw new MAPParsingComponentException("Error while decoding " + _PrimitiveName + ".xres: Parameter 1 bad tag or tag class or is not primitive", MAPParsingComponentExceptionReason.MistypedParameter); this.xres = ais.readOctetString(); if (this.xres.length < 4 || this.xres.length > 16) throw new MAPParsingComponentException("Error while decoding " + _PrimitiveName + ".xres: Bad field length: 4-16 is needed, found: " + this.xres.length, MAPParsingComponentExceptionReason.MistypedParameter); break; case 2: // ck if (ais.getTagClass() != Tag.CLASS_UNIVERSAL || !ais.isTagPrimitive() || tag != Tag.STRING_OCTET) throw new MAPParsingComponentException("Error while decoding " + _PrimitiveName + ".ck: Parameter 2 bad tag or tag class or is not primitive", MAPParsingComponentExceptionReason.MistypedParameter); this.ck = ais.readOctetString(); if (this.ck.length != 16) throw new MAPParsingComponentException("Error while decoding " + _PrimitiveName + ".ck: Bad field length: 16 is needed, found: " + this.ck.length, MAPParsingComponentExceptionReason.MistypedParameter); break; case 3: // ik if (ais.getTagClass() != Tag.CLASS_UNIVERSAL || !ais.isTagPrimitive() || tag != Tag.STRING_OCTET) throw new MAPParsingComponentException("Error while decoding " + _PrimitiveName + ".ik: Parameter 3 bad tag or tag class or is not primitive", MAPParsingComponentExceptionReason.MistypedParameter); this.ik = ais.readOctetString(); if (this.ik.length != 16) throw new MAPParsingComponentException("Error while decoding " + _PrimitiveName + ".ik: Bad field length: 16 is needed, found: " + this.ik.length, MAPParsingComponentExceptionReason.MistypedParameter); break; case 4: // autn if (ais.getTagClass() != Tag.CLASS_UNIVERSAL || !ais.isTagPrimitive() || tag != Tag.STRING_OCTET) throw new MAPParsingComponentException("Error while decoding " + _PrimitiveName + ".autn: Parameter 4 bad tag or tag class or is not primitive", MAPParsingComponentExceptionReason.MistypedParameter); this.autn = ais.readOctetString(); if (this.autn.length != 16) throw new MAPParsingComponentException("Error while decoding " + _PrimitiveName + ".autn: Bad field length: 16 is needed, found: " + this.autn.length, MAPParsingComponentExceptionReason.MistypedParameter); break; } num++; } if (num < 5) throw new MAPParsingComponentException("Error while decoding " + _PrimitiveName + ": Needs at least 5 mandatory parameters, found " + num, MAPParsingComponentExceptionReason.MistypedParameter); } public void encodeAll(AsnOutputStream asnOs) throws MAPException { this.encodeAll(asnOs, this.getTagClass(), this.getTag()); } public void encodeAll(AsnOutputStream asnOs, int tagClass, int tag) throws MAPException { try { asnOs.writeTag(tagClass, false, tag); int pos = asnOs.StartContentDefiniteLength(); this.encodeData(asnOs); asnOs.FinalizeContent(pos); } catch (AsnException e) { throw new MAPException("AsnException when encoding " + _PrimitiveName + ": " + e.getMessage(), e); } } public void encodeData(AsnOutputStream asnOs) throws MAPException { if (this.rand == null || this.xres == null || this.ck == null || this.ik == null || this.autn == null) { throw new MAPException("rand, xres, ck, ik and autn fields must not be null"); } if (this.rand.length != 16) throw new MAPException("Wrong rand field length: must be 16, found " + this.rand.length); if (this.xres.length < 4 || this.xres.length > 16) throw new MAPException("Wrong xres field length: must be from 4 to 16, found " + this.xres.length); if (this.ck.length != 16) throw new MAPException("Wrong ck field length: must be 16, found " + this.ck.length); if (this.ik.length != 16) throw new MAPException("Wrong ik field length: must be 16, found " + this.ik.length); if (this.autn.length != 16) throw new MAPException("Wrong autn field length: must be 16, found " + this.autn.length); try { asnOs.writeOctetString(this.rand); asnOs.writeOctetString(this.xres); asnOs.writeOctetString(this.ck); asnOs.writeOctetString(this.ik); asnOs.writeOctetString(this.autn); } catch (IOException e) { throw new MAPException("IOException when encoding " + _PrimitiveName + ": " + e.getMessage(), e); } catch (AsnException e) { throw new MAPException("AsnException when encoding " + _PrimitiveName + ": " + e.getMessage(), e); } } @Override public String toString() { StringBuilder sb = new StringBuilder(); sb.append("AuthenticationQuintuplet ["); if (this.rand != null) { sb.append("rand=["); sb.append(printDataArr(this.rand)); sb.append("], "); } if (this.xres != null) { sb.append("xres=["); sb.append(printDataArr(this.xres)); sb.append("], "); } if (this.ck != null) { sb.append("ck=["); sb.append(printDataArr(this.ck)); sb.append("], "); } if (this.ik != null) { sb.append("ik=["); sb.append(printDataArr(this.ik)); sb.append("], "); } if (this.autn != null) { sb.append("autn=["); sb.append(printDataArr(this.autn)); sb.append("]"); } sb.append("]"); return sb.toString(); } private String printDataArr(byte[] arr) { StringBuilder sb = new StringBuilder(); for (int b : arr) { sb.append(b); sb.append(", "); } return sb.toString(); } }