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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 | } | ||