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| 1 | +/* | |
| 2 | + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package sun.security.jgss.wrapper; | |
| 27 | + | |
| 28 | +import org.ietf.jgss.*; | |
| 29 | +import java.security.Provider; | |
| 30 | +import java.security.Security; | |
| 31 | +import java.io.IOException; | |
| 32 | +import java.io.UnsupportedEncodingException; | |
| 33 | +import sun.security.jgss.GSSUtil; | |
| 34 | +import sun.security.util.ObjectIdentifier; | |
| 35 | +import sun.security.util.DerInputStream; | |
| 36 | +import sun.security.util.DerOutputStream; | |
| 37 | +import sun.security.jgss.GSSUtil; | |
| 38 | +import sun.security.jgss.GSSExceptionImpl; | |
| 39 | +import sun.security.jgss.spi.GSSNameSpi; | |
| 40 | + | |
| 41 | +/** | |
| 42 | + * This class is essentially a wrapper class for the gss_name_t | |
| 43 | + * structure of the native GSS library. | |
| 44 | + * @author Valerie Peng | |
| 45 | + * @since 1.6 | |
| 46 | + */ | |
| 47 | + | |
| 48 | +public class GSSNameElement implements GSSNameSpi { | |
| 49 | + | |
| 50 | + long pName = 0; // Pointer to the gss_name_t structure | |
| 51 | + private String printableName; | |
| 52 | + private Oid printableType; | |
| 53 | + private GSSLibStub cStub; | |
| 54 | + | |
| 55 | + static final GSSNameElement DEF_ACCEPTOR = new GSSNameElement(); | |
| 56 | + | |
| 57 | + private static Oid getNativeNameType(Oid nameType, GSSLibStub stub) { | |
| 58 | + if (GSSUtil.NT_GSS_KRB5_PRINCIPAL.equals(nameType)) { | |
| 59 | + Oid[] supportedNTs = null; | |
| 60 | + try { | |
| 61 | + supportedNTs = stub.inquireNamesForMech(); | |
| 62 | + } catch (GSSException ge) { | |
| 63 | + if (ge.getMajor() == GSSException.BAD_MECH && | |
| 64 | + GSSUtil.isSpNegoMech(stub.getMech())) { | |
| 65 | + // Workaround known Heimdal issue and retry with KRB5 | |
| 66 | + try { | |
| 67 | + stub = GSSLibStub.getInstance | |
| 68 | + (GSSUtil.GSS_KRB5_MECH_OID); | |
| 69 | + supportedNTs = stub.inquireNamesForMech(); | |
| 70 | + } catch (GSSException ge2) { | |
| 71 | + // Should never happen | |
| 72 | + SunNativeProvider.debug("Name type list unavailable: " + | |
| 73 | + ge2.getMajorString()); | |
| 74 | + } | |
| 75 | + } else { | |
| 76 | + SunNativeProvider.debug("Name type list unavailable: " + | |
| 77 | + ge.getMajorString()); | |
| 78 | + } | |
| 79 | + } | |
| 80 | + if (supportedNTs != null) { | |
| 81 | + for (int i = 0; i < supportedNTs.length; i++) { | |
| 82 | + if (supportedNTs[i].equals(nameType)) return nameType; | |
| 83 | + } | |
| 84 | + // Special handling the specified name type | |
| 85 | + SunNativeProvider.debug("Override " + nameType + | |
| 86 | + " with mechanism default(null)"); | |
| 87 | + return null; // Use mechanism specific default | |
| 88 | + } | |
| 89 | + } | |
| 90 | + return nameType; | |
| 91 | + } | |
| 92 | + | |
| 93 | + private GSSNameElement() { | |
| 94 | + printableName = "<DEFAULT ACCEPTOR>"; | |
| 95 | + } | |
| 96 | + | |
| 97 | + GSSNameElement(long pNativeName, GSSLibStub stub) throws GSSException { | |
| 98 | + assert(stub != null); | |
| 99 | + if (pNativeName == 0) { | |
| 100 | + throw new GSSException(GSSException.BAD_NAME); | |
| 101 | + } | |
| 102 | + // Note: pNativeName is assumed to be a MN. | |
| 103 | + pName = pNativeName; | |
| 104 | + cStub = stub; | |
| 105 | + setPrintables(); | |
| 106 | + } | |
| 107 | + | |
| 108 | + GSSNameElement(byte[] nameBytes, Oid nameType, GSSLibStub stub) | |
| 109 | + throws GSSException { | |
| 110 | + assert(stub != null); | |
| 111 | + if (nameBytes == null) { | |
| 112 | + throw new GSSException(GSSException.BAD_NAME); | |
| 113 | + } | |
| 114 | + cStub = stub; | |
| 115 | + byte[] name = nameBytes; | |
| 116 | + | |
| 117 | + if (nameType != null) { | |
| 118 | + // Special handling the specified name type if | |
| 119 | + // necessary | |
| 120 | + nameType = getNativeNameType(nameType, stub); | |
| 121 | + | |
| 122 | + if (GSSName.NT_EXPORT_NAME.equals(nameType)) { | |
| 123 | + // Need to add back the mech Oid portion (stripped | |
| 124 | + // off by GSSNameImpl class prior to calling this | |
| 125 | + // method) for "NT_EXPORT_NAME" | |
| 126 | + byte[] mechBytes = null; | |
| 127 | + DerOutputStream dout = new DerOutputStream(); | |
| 128 | + Oid mech = cStub.getMech(); | |
| 129 | + try { | |
| 130 | + dout.putOID(new ObjectIdentifier(mech.toString())); | |
| 131 | + } catch (IOException e) { | |
| 132 | + throw new GSSExceptionImpl(GSSException.FAILURE, e); | |
| 133 | + } | |
| 134 | + mechBytes = dout.toByteArray(); | |
| 135 | + name = new byte[2 + 2 + mechBytes.length + 4 + nameBytes.length]; | |
| 136 | + int pos = 0; | |
| 137 | + name[pos++] = 0x04; | |
| 138 | + name[pos++] = 0x01; | |
| 139 | + name[pos++] = (byte) (mechBytes.length>>>8); | |
| 140 | + name[pos++] = (byte) mechBytes.length; | |
| 141 | + System.arraycopy(mechBytes, 0, name, pos, mechBytes.length); | |
| 142 | + pos += mechBytes.length; | |
| 143 | + name[pos++] = (byte) (nameBytes.length>>>24); | |
| 144 | + name[pos++] = (byte) (nameBytes.length>>>16); | |
| 145 | + name[pos++] = (byte) (nameBytes.length>>>8); | |
| 146 | + name[pos++] = (byte) nameBytes.length; | |
| 147 | + System.arraycopy(nameBytes, 0, name, pos, nameBytes.length); | |
| 148 | + } | |
| 149 | + } | |
| 150 | + pName = cStub.importName(name, nameType); | |
| 151 | + setPrintables(); | |
| 152 | + | |
| 153 | + SunNativeProvider.debug("Imported " + printableName + " w/ type " + | |
| 154 | + printableType); | |
| 155 | + } | |
| 156 | + | |
| 157 | + private void setPrintables() throws GSSException { | |
| 158 | + Object[] printables = null; | |
| 159 | + printables = cStub.displayName(pName); | |
| 160 | + assert((printables != null) && (printables.length == 2)); | |
| 161 | + printableName = (String) printables[0]; | |
| 162 | + assert(printableName != null); | |
| 163 | + printableType = (Oid) printables[1]; | |
| 164 | + if (printableType == null) { | |
| 165 | + printableType = GSSName.NT_USER_NAME; | |
| 166 | + } | |
| 167 | + } | |
| 168 | + | |
| 169 | + // Need to be public for GSSUtil.getSubject() | |
| 170 | + public String getKrbName() throws GSSException { | |
| 171 | + long mName = 0; | |
| 172 | + GSSLibStub stub = cStub; | |
| 173 | + if (!GSSUtil.isKerberosMech(cStub.getMech())) { | |
| 174 | + stub = GSSLibStub.getInstance(GSSUtil.GSS_KRB5_MECH_OID); | |
| 175 | + } | |
| 176 | + mName = stub.canonicalizeName(pName); | |
| 177 | + Object[] printables2 = stub.displayName(mName); | |
| 178 | + stub.releaseName(mName); | |
| 179 | + SunNativeProvider.debug("Got kerberized name: " + printables2[0]); | |
| 180 | + return (String) printables2[0]; | |
| 181 | + } | |
| 182 | + | |
| 183 | + public Provider getProvider() { | |
| 184 | + return SunNativeProvider.INSTANCE; | |
| 185 | + } | |
| 186 | + | |
| 187 | + public boolean equals(GSSNameSpi other) throws GSSException { | |
| 188 | + if (!(other instanceof GSSNameElement)) { | |
| 189 | + return false; | |
| 190 | + } | |
| 191 | + return cStub.compareName(pName, ((GSSNameElement)other).pName); | |
| 192 | + } | |
| 193 | + | |
| 194 | + public boolean equals(Object other) { | |
| 195 | + if (!(other instanceof GSSNameElement)) { | |
| 196 | + return false; | |
| 197 | + } | |
| 198 | + try { | |
| 199 | + return equals((GSSNameElement) other); | |
| 200 | + } catch (GSSException ex) { | |
| 201 | + return false; | |
| 202 | + } | |
| 203 | + } | |
| 204 | + | |
| 205 | + public int hashCode() { | |
| 206 | + return new Long(pName).hashCode(); | |
| 207 | + } | |
| 208 | + | |
| 209 | + public byte[] export() throws GSSException { | |
| 210 | + byte[] nameVal = cStub.exportName(pName); | |
| 211 | + | |
| 212 | + // Need to strip off the mech Oid portion of the exported | |
| 213 | + // bytes since GSSNameImpl class will subsequently add it. | |
| 214 | + int pos = 0; | |
| 215 | + if ((nameVal[pos++] != 0x04) || | |
| 216 | + (nameVal[pos++] != 0x01)) | |
| 217 | + throw new GSSException(GSSException.BAD_NAME); | |
| 218 | + | |
| 219 | + int mechOidLen = (((0xFF & nameVal[pos++]) << 8) | | |
| 220 | + (0xFF & nameVal[pos++])); | |
| 221 | + ObjectIdentifier temp = null; | |
| 222 | + try { | |
| 223 | + DerInputStream din = new DerInputStream(nameVal, pos, | |
| 224 | + mechOidLen); | |
| 225 | + temp = new ObjectIdentifier(din); | |
| 226 | + } catch (IOException e) { | |
| 227 | + throw new GSSExceptionImpl(GSSException.BAD_NAME, e); | |
| 228 | + } | |
| 229 | + Oid mech2 = new Oid(temp.toString()); | |
| 230 | + assert(mech2.equals(getMechanism())); | |
| 231 | + pos += mechOidLen; | |
| 232 | + int mechPortionLen = (((0xFF & nameVal[pos++]) << 24) | | |
| 233 | + ((0xFF & nameVal[pos++]) << 16) | | |
| 234 | + ((0xFF & nameVal[pos++]) << 8) | | |
| 235 | + (0xFF & nameVal[pos++])); | |
| 236 | + byte[] mechPortion = new byte[mechPortionLen]; | |
| 237 | + System.arraycopy(nameVal, pos, mechPortion, 0, mechPortionLen); | |
| 238 | + return mechPortion; | |
| 239 | + } | |
| 240 | + | |
| 241 | + public Oid getMechanism() { | |
| 242 | + return cStub.getMech(); | |
| 243 | + } | |
| 244 | + | |
| 245 | + public String toString() { | |
| 246 | + return printableName; | |
| 247 | + } | |
| 248 | + | |
| 249 | + public Oid getStringNameType() { | |
| 250 | + return printableType; | |
| 251 | + } | |
| 252 | + | |
| 253 | + public boolean isAnonymousName() { | |
| 254 | + return (GSSName.NT_ANONYMOUS.equals(printableType)); | |
| 255 | + } | |
| 256 | + | |
| 257 | + public void dispose() { | |
| 258 | + if (pName != 0) { | |
| 259 | + cStub.releaseName(pName); | |
| 260 | + pName = 0; | |
| 261 | + } | |
| 262 | + } | |
| 263 | + | |
| 264 | + protected void finalize() throws Throwable { | |
| 265 | + dispose(); | |
| 266 | + } | |
| 267 | +} | |