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Java > Open Source Codes > org > alfresco > filesys > smb > Dialect


1 /*
2  * Copyright (C) 2005 Alfresco, Inc.
3  *
4  * Licensed under the Mozilla Public License version 1.1
5  * with a permitted attribution clause. You may obtain a
6  * copy of the License at
7  *
8  * http://www.alfresco.org/legal/license.txt
9  *
10  * Unless required by applicable law or agreed to in writing,
11  * software distributed under the License is distributed on an
12  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
13  * either express or implied. See the License for the specific
14  * language governing permissions and limitations under the
15  * License.
16  */
17 package org.alfresco.filesys.smb;
18
19 /**
20  * SMB dialect class.
21  * <p>
22  * This class contains the available SMB protocol dialects that may be negotiated when an SMB
23  * session is setup.
24  */
25
26 public final class Dialect
27 {
28
29     // SMB dialect strings, encoded into the SMB session setup packet.
30
31     private static final String JavaDoc[] protList = {
32             "PC NETWORK PROGRAM 1.0",
33             "MICROSOFT NETWORKS 1.03",
34             "MICROSOFT NETWORKS 3.0",
35             "DOS LANMAN1.0",
36             "LANMAN1.0",
37             "DOS LM1.2X002",
38             "LM1.2X002",
39             "DOS LANMAN2.1",
40             "LANMAN2.1",
41             "Samba",
42             "NT LM 0.12",
43             "NT LANMAN 1.0" };
44
45     // SMB dialect type strings
46
47     private static final String JavaDoc[] protType = {
48             "Core",
49             "CorePlus",
50             "DOS LANMAN 1.0",
51             "LANMAN1.0",
52             "DOS LANMAN 2.1",
53             "LM1.2X002",
54             "LANMAN2.1",
55             "NT LM 0.12" };
56
57     // Dialect constants
58
59     public static final int Core = 0;
60     public static final int CorePlus = 1;
61     public static final int DOSLanMan1 = 2;
62     public static final int LanMan1 = 3;
63     public static final int DOSLanMan2 = 4;
64     public static final int LanMan2 = 5;
65     public static final int LanMan2_1 = 6;
66     public static final int NT = 7;
67     public static final int Max = 8;
68
69     public static final int Unknown = -1;
70
71     // SMB dialect type to string conversion array
72
73     private static final int[] protIdx = {
74             Core,
75             CorePlus,
76             DOSLanMan1,
77             DOSLanMan1,
78             LanMan1,
79             DOSLanMan2,
80             LanMan2,
81             LanMan2_1,
82             LanMan2_1,
83             NT,
84             NT,
85             NT };
86
87     // SMB dialect type to string conversion array length
88
89     public static final int SMB_PROT_MAXSTRING = protIdx.length;
90
91     // Table that maps SMB commands to the minimum required SMB dialect
92
93     private static final int[] cmdtable = {
94             Core, // CreateDirectory
95 Core, // DeleteDirectory
96 Core, // OpenFile
97 Core, // CreateFile
98 Core, // CloseFile
99 Core, // FlushFile
100 Core, // DeleteFile
101 Core, // RenameFile
102 Core, // QueryFileInfo
103 Core, // SetFileInfo
104 Core, // Read
105 Core, // Write
106 Core, // LockFile
107 Core, // UnlockFile
108 Core, // CreateTemporary
109 Core, // CreateNew
110 Core, // CheckDirectory
111 Core, // ProcessExit
112 Core, // SeekFile
113 LanMan1, // LockAndRead
114 LanMan1, // WriteAndUnlock
115 0, // Unused
116 0, // ..
117 0, // ..
118 0, // ..
119 0, // ..
120 LanMan1, // ReadRaw
121 LanMan1, // WriteMpxSecondary
122 LanMan1, // WriteRaw
123 LanMan1, // WriteMpx
124 0, // Unused
125 LanMan1, // WriteComplete
126 0, // Unused
127 LanMan1, // SetInformation2
128 LanMan1, // QueryInformation2
129 LanMan1, // LockingAndX
130 LanMan1, // Transaction
131 LanMan1, // TransactionSecondary
132 LanMan1, // Ioctl
133 LanMan1, // Ioctl2
134 LanMan1, // Copy
135 LanMan1, // Move
136 LanMan1, // Echo
137 LanMan1, // WriteAndClose
138 LanMan1, // OpenAndX
139 LanMan1, // ReadAndX
140 LanMan1, // WriteAndX
141 0, // Unused
142 LanMan1, // CloseAndTreeDisconnect
143 LanMan2, // Transaction2
144 LanMan2, // Transaction2Secondary
145 LanMan2, // FindClose2
146 LanMan1, // FindNotifyClose
147 0, // Unused
148 0, // ..
149 0, // ..
150 0, // ..
151 0, // ..
152 0, // ..
153 0, // ..
154 0, // ..
155 0, // ..
156 0, // ..
157 0, // ..
158 0, // ..
159 0, // ..
160 0, // ..
161 0, // ..
162 0, // ..
163 0, // ..
164 0, // ..
165 0, // ..
166 0, // ..
167 0, // ..
168 0, // ..
169 0, // ..
170 0, // ..
171 0, // ..
172 0, // ..
173 0, // ..
174 0, // ..
175 0, // ..
176 0, // ..
177 0, // ..
178 0, // ..
179 0, // ..
180 0, // ..
181 0, // ..
182 0, // ..
183 0, // ..
184 0, // ..
185 0, // ..
186 0, // ..
187 0, // ..
188 0, // ..
189 0, // ..
190 0, // ..
191 0, // ..
192 0, // ..
193 0, // ..
194 0, // ..
195 0, // ..
196 0, // ..
197 0, // ..
198 0, // ..
199 0, // ..
200 0, // ..
201 0, // ..
202 0, // ..
203 0, // ..
204 0, // ..
205 0, // ..
206 Core, // TreeConnect
207 Core, // TreeDisconnect
208 Core, // Negotiate
209 Core, // SessionSetupAndX
210 LanMan1, // LogoffAndX
211 LanMan1, // TreeConnectAndX
212 0, // Unused
213 0, // ..
214 0, // ..
215 0, // ..
216 0, // ..
217 0, // ..
218 0, // ..
219 0, // ..
220 0, // ..
221 0, // ..
222 Core, // DiskInformation
223 Core, // Search
224 LanMan1, // Find
225 LanMan1, // FindUnique
226 0, // Unused
227 0, // ..
228 0, // ..
229 0, // ..
230 0, // ..
231 0, // ..
232 0, // ..
233 0, // ..
234 0, // ..
235 0, // ..
236 0, // ..
237 0, // ..
238 0, // ..
239 0, // ..
240 0, // ..
241 0, // ..
242 0, // ..
243 0, // ..
244 0, // ..
245 0, // ..
246 0, // ..
247 0, // ..
248 0, // ..
249 0, // ..
250 0, // ..
251 0, // ..
252 0, // ..
253 0, // ..
254 NT, // NTTransact
255 NT, // NTTransactSecondary
256 NT, // NTCreateAndX
257 NT, // NTCancel
258 0, // ..
259 0, // ..
260 0, // ..
261 0, // ..
262 0, // ..
263 0, // ..
264 0, // ..
265 0, // ..
266 0, // ..
267 0, // ..
268 0, // ..
269 0, // ..
270 0, // ..
271 0, // ..
272 0, // ..
273 0, // ..
274 0, // ..
275 0, // ..
276 0, // ..
277 0, // ..
278 0, // ..
279 0, // ..
280 0, // ..
281 0, // ..
282 0, // ..
283 0, // ..
284 0, // ..
285 Core, // OpenPrintFile
286 Core, // WritePrintFile
287 Core, // ClosePrintFile
288 Core, // GetPrintQueue
289 0, // ..
290 0, // ..
291 0, // ..
292 0, // ..
293 0, // ..
294 0, // ..
295 0, // ..
296 0, // ..
297 0, // ..
298 0, // ..
299 0, // ..
300 0, // ..
301 -1, // SendMessage
302 -1, // SendBroadcast
303 -1, // SendForward
304 -1, // CancelForward
305 -1, // GetMachineName
306 -1, // SendMultiStart
307 -1, // SendMultiEnd
308 -1 // SendMultiText
309 };
310
311     /**
312      * Return the required SMB dialect string.
313      *
314      * @param i SMB dialect string index.
315      * @return SMB dialect string.
316      */
317
318     public static String JavaDoc DialectString(int i)
319     {
320
321         // Validate the dialect index
322
323         if (i >= protList.length)
324             return null;
325         return protList[i];
326     }
327
328     /**
329      * Determine if the SMB dialect supports the SMB command
330      *
331      * @return boolean
332      * @param dialect int SMB dialect type.
333      * @param cmd int SMB command code.
334      */
335     public final static boolean DialectSupportsCommand(int dialect, int cmd)
336     {
337         // Range check the command
338
339         if (cmd > cmdtable.length)
340             return false;
341
342         // Check if the SMB dialect supports the SMB command.
343
344         if (cmdtable[cmd] <= dialect)
345             return true;
346         return false;
347     }
348
349     /**
350      * Return the SMB dialect type for the specified SMB dialect string index.
351      *
352      * @param i SMB dialect type.
353      * @return SMB dialect string index.
354      */
355
356     public static int DialectType(int i)
357     {
358         return protIdx[i];
359     }
360
361     /**
362      * Return the SMB dialect type for the specified string.
363      *
364      * @return int
365      * @param diastr java.lang.String
366      */
367     public static int DialectType(String JavaDoc diastr)
368     {
369
370         // Search the protocol string list
371
372         int i = 0;
373
374         while (i < protList.length && protList[i].compareTo(diastr) != 0)
375             i++;
376
377         // Return the protocol id
378
379         if (i < protList.length)
380             return DialectType(i);
381         else
382             return Unknown;
383     }
384
385     /**
386      * Return the dialect type as a string.
387      *
388      * @param dia SMB dialect type.
389      * @return SMB dialect type string.
390      */
391
392     public static String JavaDoc DialectTypeString(int dia)
393     {
394         return protType[dia];
395     }
396
397     /**
398      * Return the number of available SMB dialect strings.
399      *
400      * @return Number of available SMB dialect strings.
401      */
402
403     public static int NumberOfDialects()
404     {
405         return protList.length;
406     }
407 }
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