author | weijun |
Wed, 09 Nov 2011 09:30:13 +0800 | |
changeset 11011 | d14a696e3ab5 |
parent 7288 | a38f3099e518 |
child 13247 | 74902cfeb9c6 |
permissions | -rw-r--r-- |
2 | 1 |
/* |
2 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
|
3 |
* |
|
4 |
* This code is free software; you can redistribute it and/or modify it |
|
5 |
* under the terms of the GNU General Public License version 2 only, as |
|
5506 | 6 |
* published by the Free Software Foundation. Oracle designates this |
2 | 7 |
* particular file as subject to the "Classpath" exception as provided |
5506 | 8 |
* by Oracle in the LICENSE file that accompanied this code. |
2 | 9 |
* |
10 |
* This code is distributed in the hope that it will be useful, but WITHOUT |
|
11 |
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
|
12 |
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
13 |
* version 2 for more details (a copy is included in the LICENSE file that |
|
14 |
* accompanied this code). |
|
15 |
* |
|
16 |
* You should have received a copy of the GNU General Public License version |
|
17 |
* 2 along with this work; if not, write to the Free Software Foundation, |
|
18 |
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
|
19 |
* |
|
5506 | 20 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
21 |
* or visit www.oracle.com if you need additional information or have any |
|
22 |
* questions. |
|
2 | 23 |
*/ |
24 |
||
25 |
/* |
|
26 |
* |
|
27 |
* (C) Copyright IBM Corp. 1999 All Rights Reserved. |
|
28 |
* Copyright 1997 The Open Group Research Institute. All rights reserved. |
|
29 |
*/ |
|
30 |
||
31 |
package sun.security.krb5.internal.ccache; |
|
32 |
||
33 |
import java.io.IOException; |
|
34 |
import java.io.InputStream; |
|
35 |
import java.util.Hashtable; |
|
36 |
import java.util.Vector; |
|
37 |
import java.util.StringTokenizer; |
|
38 |
import sun.security.krb5.*; |
|
39 |
import sun.security.krb5.internal.*; |
|
40 |
import sun.security.krb5.internal.util.KrbDataInputStream; |
|
41 |
||
42 |
/** |
|
43 |
* This class extends KrbDataInputStream. It is used for parsing FCC-format |
|
44 |
* data from file to memory. |
|
45 |
* |
|
46 |
* @author Yanni Zhang |
|
47 |
* |
|
48 |
*/ |
|
49 |
public class CCacheInputStream extends KrbDataInputStream implements FileCCacheConstants { |
|
50 |
||
51 |
/* |
|
52 |
* FCC version 2 contains type information for principals. FCC |
|
53 |
* version 1 does not. |
|
54 |
* |
|
55 |
* FCC version 3 contains keyblock encryption type information, and is |
|
56 |
* architecture independent. Previous versions are not. |
|
57 |
* |
|
58 |
* The code will accept version 1, 2, and 3 ccaches, and depending |
|
59 |
* what KRB5_FCC_DEFAULT_FVNO is set to, it will create version 1, 2, |
|
60 |
* or 3 FCC caches. |
|
61 |
* |
|
62 |
* The default credentials cache should be type 3 for now (see |
|
63 |
* init_ctx.c). |
|
64 |
*/ |
|
65 |
/* V4 of the credentials cache format allows for header tags */ |
|
66 |
||
67 |
private static boolean DEBUG = Krb5.DEBUG; |
|
68 |
||
69 |
public CCacheInputStream(InputStream is){ |
|
70 |
super(is); |
|
71 |
} |
|
72 |
||
73 |
/* Read tag field introduced in KRB5_FCC_FVNO_4 */ |
|
74 |
// this needs to be public for Kinit. |
|
75 |
public Tag readTag() throws IOException { |
|
76 |
char[] buf = new char[1024]; |
|
77 |
byte[] bytes; |
|
78 |
int len; |
|
79 |
int tag = -1; |
|
80 |
int taglen; |
|
81 |
Integer time_offset = null; |
|
82 |
Integer usec_offset = null; |
|
83 |
||
84 |
len = read(2); |
|
85 |
if (len < 0) { |
|
86 |
throw new IOException("stop."); |
|
87 |
} |
|
88 |
bytes = new byte[len + 2]; |
|
89 |
if (len > buf.length) { |
|
90 |
throw new IOException("Invalid tag length."); |
|
91 |
} |
|
92 |
while (len > 0) { |
|
93 |
tag = read(2); |
|
94 |
taglen = read(2); |
|
95 |
switch (tag) { |
|
96 |
case FCC_TAG_DELTATIME: |
|
97 |
time_offset = new Integer(read(4)); |
|
98 |
usec_offset = new Integer(read(4)); |
|
99 |
break; |
|
100 |
default: |
|
101 |
} |
|
102 |
len = len - (4 + taglen); |
|
103 |
} |
|
104 |
Tag result; |
|
105 |
if (tag == -1) { |
|
106 |
} |
|
107 |
result = new Tag(len, tag, time_offset, usec_offset); |
|
108 |
return result; |
|
109 |
} |
|
110 |
/* |
|
111 |
* In file-based credential cache, the realm name is stored as part of |
|
112 |
* principal name at the first place. |
|
113 |
*/ |
|
114 |
// made public for KinitOptions to call directly |
|
115 |
public PrincipalName readPrincipal(int version) throws IOException, RealmException { |
|
116 |
int type, length, namelength, kret; |
|
117 |
PrincipalName p; |
|
118 |
String[] pname = null; |
|
119 |
String realm; |
|
120 |
/* Read principal type */ |
|
121 |
if (version == KRB5_FCC_FVNO_1) { |
|
122 |
type = KRB5_NT_UNKNOWN; |
|
123 |
} else { |
|
124 |
type = read(4); |
|
125 |
} |
|
126 |
length = read(4); |
|
127 |
String[] result = new String[length + 1]; |
|
128 |
/* |
|
129 |
* DCE includes the principal's realm in the count; the new format |
|
130 |
* does not. |
|
131 |
*/ |
|
132 |
if (version == KRB5_FCC_FVNO_1) |
|
133 |
length--; |
|
134 |
for (int i = 0; i <= length; i++) { |
|
135 |
namelength = read(4); |
|
136 |
if (namelength > MAXNAMELENGTH) { |
|
137 |
throw new IOException("Invalid name length in principal name."); |
|
138 |
} |
|
139 |
byte[] bytes = new byte[namelength]; |
|
140 |
read(bytes, 0, namelength); |
|
141 |
result[i] = new String(bytes); |
|
142 |
} |
|
143 |
if (isRealm(result[0])) { |
|
144 |
realm = result[0]; |
|
145 |
pname = new String[length]; |
|
146 |
System.arraycopy(result, 1, pname, 0, length); |
|
147 |
p = new PrincipalName(pname, type); |
|
148 |
p.setRealm(realm); |
|
149 |
} |
|
150 |
else p = new PrincipalName(result, type); |
|
151 |
return p; |
|
152 |
} |
|
153 |
||
154 |
/* |
|
155 |
* In practice, a realm is named by uppercasing the DNS domain name. we currently |
|
156 |
* rely on this to determine if the string within the principal identifier is realm |
|
157 |
* name. |
|
158 |
* |
|
159 |
*/ |
|
160 |
boolean isRealm(String str) { |
|
161 |
try { |
|
162 |
Realm r = new Realm(str); |
|
163 |
} |
|
164 |
catch (Exception e) { |
|
165 |
return false; |
|
166 |
} |
|
167 |
StringTokenizer st = new StringTokenizer(str, "."); |
|
168 |
String s; |
|
169 |
while (st.hasMoreTokens()) { |
|
170 |
s = st.nextToken(); |
|
171 |
for (int i = 0; i < s.length(); i++) { |
|
172 |
if (s.charAt(i) >= 141) { |
|
173 |
return false; |
|
174 |
} |
|
175 |
} |
|
176 |
} |
|
177 |
return true; |
|
178 |
} |
|
179 |
||
180 |
EncryptionKey readKey(int version) throws IOException { |
|
181 |
int keyType, keyLen; |
|
182 |
keyType = read(2); |
|
183 |
if (version == KRB5_FCC_FVNO_3) |
|
184 |
read(2); /* keytype recorded twice in fvno 3 */ |
|
185 |
keyLen = read(4); |
|
186 |
byte[] bytes = new byte[keyLen]; |
|
187 |
for (int i = 0; i < keyLen; i++) { |
|
188 |
bytes[i] = (byte)read(); |
|
189 |
} |
|
190 |
return new EncryptionKey(bytes, keyType, new Integer(version)); |
|
191 |
} |
|
192 |
||
193 |
long[] readTimes() throws IOException { |
|
194 |
long[] times = new long[4]; |
|
195 |
times[0] = (long)read(4) * 1000; |
|
196 |
times[1] = (long)read(4) * 1000; |
|
197 |
times[2] = (long)read(4) * 1000; |
|
198 |
times[3] = (long)read(4) * 1000; |
|
199 |
return times; |
|
200 |
} |
|
201 |
||
202 |
boolean readskey() throws IOException { |
|
203 |
if (read() == 0) { |
|
204 |
return false; |
|
205 |
} |
|
206 |
else return true; |
|
207 |
} |
|
208 |
||
209 |
HostAddress[] readAddr() throws IOException, KrbApErrException { |
|
210 |
int numAddrs, addrType, addrLength; |
|
211 |
numAddrs = read(4); |
|
212 |
if (numAddrs > 0) { |
|
213 |
HostAddress[] addrs = new HostAddress[numAddrs]; |
|
214 |
for (int i = 0; i < numAddrs; i++) { |
|
215 |
addrType = read(2); |
|
216 |
addrLength = read(4); |
|
217 |
if (!(addrLength == 4 || addrLength == 16)) { |
|
77 | 218 |
if (DEBUG) { |
219 |
System.out.println("Incorrect address format."); |
|
220 |
} |
|
2 | 221 |
return null; |
222 |
} |
|
223 |
byte[] result = new byte[addrLength]; |
|
224 |
for (int j = 0; j < addrLength; j++) |
|
225 |
result[j] = (byte)read(1); |
|
226 |
addrs[i] = new HostAddress(addrType, result); |
|
227 |
} |
|
228 |
return addrs; |
|
229 |
} |
|
230 |
return null; |
|
231 |
} |
|
232 |
||
233 |
AuthorizationDataEntry[] readAuth() throws IOException { |
|
234 |
int num, adtype, adlength; |
|
235 |
num = read(4); |
|
236 |
if (num > 0) { |
|
237 |
AuthorizationDataEntry[] auData = new AuthorizationDataEntry[num]; |
|
238 |
byte[] data = null; |
|
239 |
for (int i = 0; i < num; i++) { |
|
240 |
adtype = read(2); |
|
241 |
adlength = read(4); |
|
242 |
data = new byte[adlength]; |
|
243 |
for (int j = 0; j < adlength; j++) { |
|
244 |
data[j] = (byte)read(); |
|
245 |
} |
|
246 |
auData[i] = new AuthorizationDataEntry(adtype, data); |
|
247 |
} |
|
248 |
return auData; |
|
249 |
} |
|
250 |
else return null; |
|
251 |
} |
|
252 |
||
7288
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
253 |
byte[] readData() throws IOException { |
2 | 254 |
int length; |
255 |
length = read(4); |
|
7288
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
256 |
if (length == 0) { |
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
257 |
return null; |
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
258 |
} else { |
2 | 259 |
byte[] bytes = new byte[length]; |
260 |
read(bytes, 0, length); |
|
7288
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
261 |
return bytes; |
2 | 262 |
} |
263 |
} |
|
264 |
||
265 |
boolean[] readFlags() throws IOException { |
|
266 |
boolean[] flags = new boolean[Krb5.TKT_OPTS_MAX+1]; |
|
267 |
int ticketFlags; |
|
268 |
ticketFlags = read(4); |
|
269 |
if ((ticketFlags & 0x40000000) == TKT_FLG_FORWARDABLE) |
|
270 |
flags[1] = true; |
|
271 |
if ((ticketFlags & 0x20000000) == TKT_FLG_FORWARDED) |
|
272 |
flags[2] = true; |
|
273 |
if ((ticketFlags & 0x10000000) == TKT_FLG_PROXIABLE) |
|
274 |
flags[3] = true; |
|
275 |
if ((ticketFlags & 0x08000000) == TKT_FLG_PROXY) |
|
276 |
flags[4] = true; |
|
277 |
if ((ticketFlags & 0x04000000) == TKT_FLG_MAY_POSTDATE) |
|
278 |
flags[5] = true; |
|
279 |
if ((ticketFlags & 0x02000000) == TKT_FLG_POSTDATED) |
|
280 |
flags[6] = true; |
|
281 |
if ((ticketFlags & 0x01000000) == TKT_FLG_INVALID) |
|
282 |
flags[7] = true; |
|
283 |
if ((ticketFlags & 0x00800000) == TKT_FLG_RENEWABLE) |
|
284 |
flags[8] = true; |
|
285 |
if ((ticketFlags & 0x00400000) == TKT_FLG_INITIAL) |
|
286 |
flags[9] = true; |
|
287 |
if ((ticketFlags & 0x00200000) == TKT_FLG_PRE_AUTH) |
|
288 |
flags[10] = true; |
|
289 |
if ((ticketFlags & 0x00100000) == TKT_FLG_HW_AUTH) |
|
290 |
flags[11] = true; |
|
291 |
if (DEBUG) { |
|
292 |
String msg = ">>> CCacheInputStream: readFlags() "; |
|
293 |
if (flags[1] == true) { |
|
294 |
msg += " FORWARDABLE;"; |
|
295 |
} |
|
296 |
if (flags[2] == true) { |
|
297 |
msg += " FORWARDED;"; |
|
298 |
} |
|
299 |
if (flags[3] == true) { |
|
300 |
msg += " PROXIABLE;"; |
|
301 |
} |
|
302 |
if (flags[4] == true) { |
|
303 |
msg += " PROXY;"; |
|
304 |
} |
|
305 |
if (flags[5] == true) { |
|
306 |
msg += " MAY_POSTDATE;"; |
|
307 |
} |
|
308 |
if (flags[6] == true) { |
|
309 |
msg += " POSTDATED;"; |
|
310 |
} |
|
311 |
if (flags[7] == true) { |
|
312 |
msg += " INVALID;"; |
|
313 |
} |
|
314 |
if (flags[8] == true) { |
|
315 |
msg += " RENEWABLE;"; |
|
316 |
} |
|
317 |
||
318 |
if (flags[9] == true) { |
|
319 |
msg += " INITIAL;"; |
|
320 |
} |
|
321 |
if (flags[10] == true) { |
|
322 |
msg += " PRE_AUTH;"; |
|
323 |
} |
|
324 |
if (flags[11] == true) { |
|
325 |
msg += " HW_AUTH;"; |
|
326 |
} |
|
327 |
System.out.println(msg); |
|
328 |
} |
|
329 |
return flags; |
|
330 |
} |
|
7288
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
331 |
|
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
332 |
/** |
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
333 |
* Reads the next cred in stream. |
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
334 |
* @return the next cred, null if ticket or second_ticket unparseable. |
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
335 |
* |
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
336 |
* Note: MIT krb5 1.8.1 might generate a config entry with server principal |
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
337 |
* X-CACHECONF:/krb5_ccache_conf_data/fast_avail/krbtgt/REALM@REALM. The |
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
338 |
* entry is used by KDC to inform the client that it support certain |
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
339 |
* features. Its ticket is not a valid krb5 ticket and thus this method |
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
340 |
* returns null. |
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
341 |
*/ |
2 | 342 |
Credentials readCred(int version) throws IOException,RealmException, KrbApErrException, Asn1Exception { |
343 |
PrincipalName cpname = readPrincipal(version); |
|
344 |
if (DEBUG) |
|
345 |
System.out.println(">>>DEBUG <CCacheInputStream> client principal is " + cpname.toString()); |
|
346 |
PrincipalName spname = readPrincipal(version); |
|
347 |
if (DEBUG) |
|
348 |
System.out.println(">>>DEBUG <CCacheInputStream> server principal is " + spname.toString()); |
|
349 |
EncryptionKey key = readKey(version); |
|
350 |
if (DEBUG) |
|
351 |
System.out.println(">>>DEBUG <CCacheInputStream> key type: " + key.getEType()); |
|
352 |
long times[] = readTimes(); |
|
353 |
KerberosTime authtime = new KerberosTime(times[0]); |
|
76 | 354 |
KerberosTime starttime = |
355 |
(times[1]==0) ? null : new KerberosTime(times[1]); |
|
2 | 356 |
KerberosTime endtime = new KerberosTime(times[2]); |
76 | 357 |
KerberosTime renewTill = |
358 |
(times[3]==0) ? null : new KerberosTime(times[3]); |
|
2 | 359 |
|
360 |
if (DEBUG) { |
|
361 |
System.out.println(">>>DEBUG <CCacheInputStream> auth time: " + authtime.toDate().toString()); |
|
76 | 362 |
System.out.println(">>>DEBUG <CCacheInputStream> start time: " + |
363 |
((starttime==null)?"null":starttime.toDate().toString())); |
|
2 | 364 |
System.out.println(">>>DEBUG <CCacheInputStream> end time: " + endtime.toDate().toString()); |
76 | 365 |
System.out.println(">>>DEBUG <CCacheInputStream> renew_till time: " + |
366 |
((renewTill==null)?"null":renewTill.toDate().toString())); |
|
2 | 367 |
} |
368 |
boolean skey = readskey(); |
|
369 |
boolean flags[] = readFlags(); |
|
370 |
TicketFlags tFlags = new TicketFlags(flags); |
|
371 |
HostAddress addr[] = readAddr(); |
|
372 |
HostAddresses addrs = null; |
|
373 |
if (addr != null) { |
|
374 |
addrs = new HostAddresses(addr); |
|
375 |
} |
|
376 |
AuthorizationDataEntry[] auDataEntry = readAuth(); |
|
377 |
AuthorizationData auData = null; |
|
11011
d14a696e3ab5
7107019: sun.security.krb5.internal.ccache.CCacheInputStream.readCred does not use auth data
weijun
parents:
7288
diff
changeset
|
378 |
if (auDataEntry != null) { |
2 | 379 |
auData = new AuthorizationData(auDataEntry); |
380 |
} |
|
7288
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
381 |
byte[] ticketData = readData(); |
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
382 |
byte[] ticketData2 = readData(); |
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
383 |
|
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
384 |
try { |
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
385 |
return new Credentials(cpname, spname, key, authtime, starttime, |
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
386 |
endtime, renewTill, skey, tFlags, |
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
387 |
addrs, auData, |
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
388 |
ticketData != null ? new Ticket(ticketData) : null, |
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
389 |
ticketData2 != null ? new Ticket(ticketData2) : null); |
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
390 |
} catch (Exception e) { // If any of new Ticket(*) fails. |
a38f3099e518
6979329: CCacheInputStream fails to read ticket cache files from Kerberos 1.8.1
weijun
parents:
5506
diff
changeset
|
391 |
return null; |
2 | 392 |
} |
393 |
} |
|
394 |
} |