source: vendor/current/source3/smbd/mangle_hash.c

Last change on this file was 988, checked in by Silvan Scherrer, 9 years ago

Samba Server: update vendor to version 4.4.3
File size: 42.5 KB
Line 
1/*
2 Unix SMB/CIFS implementation.
3 Name mangling
4 Copyright (C) Andrew Tridgell 1992-2002
5 Copyright (C) Simo Sorce 2001
6 Copyright (C) Andrew Bartlett 2002
7 Copyright (C) Jeremy Allison 2007
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
21*/
22
23#include "includes.h"
24#include "system/filesys.h"
25#include "smbd/smbd.h"
26#include "smbd/globals.h"
27#include "mangle.h"
28#include "util_tdb.h"
29#include "lib/param/loadparm.h"
30
31/* -------------------------------------------------------------------------- **
32 * Other stuff...
33 *
34 * magic_char - This is the magic char used for mangling. It's
35 * global. There is a call to lp_mangling_char() in server.c
36 * that is used to override the initial value.
37 *
38 * MANGLE_BASE - This is the number of characters we use for name mangling.
39 *
40 * basechars - The set characters used for name mangling. This
41 * is static (scope is this file only).
42 *
43 * mangle() - Macro used to select a character from basechars (i.e.,
44 * mangle(n) will return the nth digit, modulo MANGLE_BASE).
45 *
46 * chartest - array 0..255. The index range is the set of all possible
47 * values of a byte. For each byte value, the content is a
48 * two nibble pair. See BASECHAR_MASK below.
49 *
50 * ct_initialized - False until the chartest array has been initialized via
51 * a call to init_chartest().
52 *
53 * BASECHAR_MASK - Masks the upper nibble of a one-byte value.
54 *
55 * isbasecahr() - Given a character, check the chartest array to see
56 * if that character is in the basechars set. This is
57 * faster than using strchr_m().
58 *
59 */
60
61static const char basechars[43]="0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_-!@#$%";
62#define MANGLE_BASE (sizeof(basechars)/sizeof(char)-1)
63
64#define mangle(V) ((char)(basechars[(V) % MANGLE_BASE]))
65#define BASECHAR_MASK 0xf0
66#define isbasechar(C) ( (chartest[ ((C) & 0xff) ]) & BASECHAR_MASK )
67
68/* -------------------------------------------------------------------- */
69
70
71/*******************************************************************
72 Determine if a character is valid in a 8.3 name.
73********************************************************************/
74
75static const uint32_t valid_table[] = {
76 0x00000000,0x2fff7bfa,0xefffffff,0xefffffff,0x00000001,0x0fffffee,
77 0xffffffff,0xffffffff,0x00000000,0x00000000,0x00000000,0x01000000,
78 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
79 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
80 0x00000000,0x00000000,0x00000000,0x00000000,0xfffe0000,0xfffe03fb,
81 0x000003ff,0x00000000,0xffff0002,0xffffffff,0x0002ffff,0x00000000,
82 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
83 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
84 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
85 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
86 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
87 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
88 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
89 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
90 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
91 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
92 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
93 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
94 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
95 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
96 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
97 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
98 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
99 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
100 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
101 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
102 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
103 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
104 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
105 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
106 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
107 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
108 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
109 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
110 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
111 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
112 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
113 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
114 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
115 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
116 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
117 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
118 0x00000000,0x00000000,0x00000000,0x00000000,0x33210000,0x080d0063,
119 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
120 0x00400008,0x00000802,0x00000000,0x03ff03ff,0x000f0000,0x00000000,
121 0x00140000,0x00000000,0xe402098d,0x20305fa1,0x00040000,0x00000cc3,
122 0x000000cc,0x80000020,0x00000000,0x00000000,0x00040000,0x00000000,
123 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
124 0x00000000,0x00000000,0x00000000,0x000fffff,0x00000000,0x00000000,
125 0x00000000,0x00000000,0x3999900f,0x99999939,0x00000804,0x00000000,
126 0x00000000,0x300c0003,0x0000c8c0,0x00008000,0x00000060,0x00000000,
127 0x00000005,0x0000a400,0x00000000,0x00000000,0x00000000,0x00000000,
128 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
129 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
130 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
131 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
132 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
133 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
134 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
135 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
136 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
137 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
138 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
139 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
140 0xa03fffef,0x00000000,0xfffffffe,0xffffffff,0x781fffff,0xfffffffe,
141 0xffffffff,0x787fffff,0x00000000,0x00000000,0x00000000,0x00000000,
142 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x02060000,
143 0x00000000,0x00000000,0x00000000,0x000001f0,0x00000000,0x00000000,
144 0x01102008,0x084008cc,0x00822600,0x78000000,0x7000c000,0x00000002,
145 0x00002010,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
146 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
147 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
148 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
149 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
150 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
151 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
152 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
153 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
154 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
155 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
156 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
157 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
158 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
159 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
160 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
161 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
162 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
163 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
164 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
165 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
166 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
167 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
168 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
169 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
170 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
171 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
172 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
173 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
174 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
175 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
176 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
177 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
178 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
179 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
180 0x43f36f8b,0x9b462542,0xe3e0e82c,0x400a0004,0xdb365f65,0x04497977,
181 0xe3f0ecd7,0x18c5603a,0x3403e60b,0x37518000,0x7eebe0c8,0x98698200,
182 0x2d56ad48,0x8060e803,0xad93661c,0xc568c03a,0xc656aa60,0x02403f7e,
183 0x146183cd,0x21751020,0x07122021,0x40bc3000,0x4562a624,0x0a3060a8,
184 0x85740217,0x9c840402,0x14157ffb,0x11e27f34,0x22efb665,0x60ff1f75,
185 0x38403a70,0x676336c3,0x20b24dd9,0x0fc946b0,0x4850bc98,0xa03f8638,
186 0x98162388,0x5232be49,0xeba422ab,0xc72c00dd,0x26e1a1e7,0x8f0a841b,
187 0x559e27eb,0x89bfc241,0x85480014,0x084d6361,0xaad07f0c,0x05cfff3e,
188 0xa803ff1a,0x7b407a41,0x80024745,0x38eb0500,0x1005dc51,0x710c9b34,
189 0x01000397,0xa4046366,0x005180d0,0x430ac000,0x30c89071,0x58000008,
190 0xf7000ed9,0x00415f80,0x941000b0,0x62800018,0x09d00240,0x01568200,
191 0x08015004,0x05101d10,0x001084c1,0x10504025,0x4d8a410f,0xa60d4009,
192 0x914cab19,0x098121c0,0x0203c485,0x80000672,0x00080b04,0x0009141d,
193 0x905c49c9,0x16900009,0x22200c65,0x24338412,0x47960c03,0x42250a04,
194 0xd0880028,0x4f0c4900,0xd3aa14a2,0x3e87d830,0x1f618e04,0x41867ea4,
195 0x2dbbc390,0x211857ad,0x2a48241e,0x4e041138,0x161b0a40,0x88400d60,
196 0x9502020a,0x10608221,0x04000243,0x80001444,0x0c040000,0x70000000,
197 0x00c11a06,0x0c00024a,0x00401a00,0x40451404,0xbdf30029,0x052b0a78,
198 0xbfa0bba9,0x8379407c,0xe91d12fd,0xc5695bf6,0x444aeff6,0xff022115,
199 0x402bed63,0x0242d033,0x00131000,0x5dca1b42,0x020000a0,0x2c61a703,
200 0x8ff24880,0x00000284,0x100d5804,0x0048b200,0x20011894,0x37805004,
201 0x684d3200,0x68be49ea,0x2e42184c,0x21c9a820,0x80b050b9,0xff7c001e,
202 0x14e0849a,0x01e028c1,0xac49870e,0xdddb130f,0x89fbbe1a,0x51b2a2e2,
203 0x32ca5522,0x928b3ec6,0x438f1dbf,0x32986703,0x73c03028,0xa9230811,
204 0x3a65c000,0x04028fe3,0xa6252c4e,0x00a1bf3d,0x8cd43e3a,0x317c06c9,
205 0xd52a00e0,0x0edf018b,0x8c22e34b,0xf0911183,0xa7287d94,0x40fbc9ac,
206 0x07534484,0x44445a90,0x00013fc8,0xf5d40048,0xec5f7701,0x891dc442,
207 0x49286b83,0xd2424109,0x59fe061d,0x3a221840,0x3b9fb7e4,0xc0eaf003,
208 0x82021386,0xe4008980,0x10a1b200,0x0cc44b80,0x8944d309,0x48341faf,
209 0x0c458259,0x0470420a,0x10c8a040,0x44503140,0x01004004,0x05408281,
210 0x642c0108,0x1a056a30,0x051460a6,0x645690cf,0x31000021,0xcbf09c18,
211 0x63e2e120,0x01b5104c,0x9a83538c,0x3281b8b2,0x0a84987a,0x0c0233e7,
212 0xd038d6cd,0x9872e1b1,0xe2848a1e,0x0459c3f4,0x23c2439a,0xd3144845,
213 0x36400292,0xffbd0241,0xe8f0eb09,0xa5d27dc0,0xd24bc242,0xd0afa47f,
214 0x34a11aa0,0x0bd88247,0x651bc453,0xc83ad294,0x40c8001e,0x33140e06,
215 0xb21f615f,0xc0d00088,0xa898a02a,0x166ba1c5,0x85b4af50,0x0604c08b,
216 0x1e04f933,0xa251056e,0x76380400,0x73b8ed07,0x19324406,0xc8164081,
217 0x63097c8a,0xaa042984,0xca9c1c24,0x27614e0e,0x830009d0,0xc10c0846,
218 0x10816011,0x0908540d,0xcc0a000e,0x0c000514,0xa0440430,0x6784008b,
219 0x8a195288,0x8b18865e,0x41602e59,0x9cbe8c10,0x895c6861,0x00089800,
220 0x089a8100,0xc1900018,0xf4a14007,0x640d8505,0x0e4d314e,0xff0a4806,
221 0x2ea81632,0x000b852e,0xca841810,0x696c0e20,0x16000032,0x0390d658,
222 0x1a6851a0,0x11249000,0x432698e1,0x1fae5d52,0xae280fa0,0x5700fafb,
223 0x99406408,0xc044c880,0xb1419005,0xa4c48424,0x603a1a34,0xc1949000,
224 0x003a8246,0xc106180d,0x99100022,0x1511e050,0x00824157,0x022a041a,
225 0x8930004f,0x446ad813,0xed228aa2,0x400511c0,0x01021000,0x31018808,
226 0x02044620,0x0f08f800,0xa2008900,0x22020000,0x16108210,0x10400042,
227 0x126052c0,0x200052f4,0x82308510,0x42021100,0x80b5430a,0xda2070e1,
228 0x08012040,0xfc653500,0xab0419c1,0x62140286,0x00440087,0x42469085,
229 0x0a85405c,0x33803207,0xb8c00400,0xc0d0ce30,0x0080c030,0x0da50508,
230 0x00400a90,0x280c0200,0x40446705,0x41226429,0x000002e8,0x847c4664,
231 0xde200002,0x4049861d,0xc0000a08,0x20010084,0x10108400,0x01c742cd,
232 0xd52a703a,0x1d8f9968,0x3e12be50,0x81d9aef5,0x2412cec4,0x732e0828,
233 0x4b3424ac,0xd41d020c,0x80002a02,0x08110097,0x114411c4,0x7d451786,
234 0x5e4949dd,0x87914040,0xd8c4254c,0x491444ba,0xc8001b92,0x15800271,
235 0x0c0000c1,0xc200096a,0x40024800,0xba493021,0x1c802080,0x1008e2ac,
236 0x00341004,0x841400e3,0x20004020,0x14149810,0x04aa70c2,0x54208688,
237 0x04130c62,0x20109180,0x02064082,0x54011c40,0xe4e90383,0x84802125,
238 0x2810e433,0xe60944c0,0x81260a03,0x080112da,0x97906901,0xf8864001,
239 0x0081e24d,0xa6510a0e,0x81ec011a,0x8441c600,0xb62eadb8,0x8741acef,
240 0x4b028d54,0x02681161,0x2057bb60,0x043350a0,0xf7b4a8c0,0x01122402,
241 0x20009ad3,0x00c82271,0x809e2081,0xe1800c8a,0x8151b009,0x40281031,
242 0x89a52a0e,0x620e69b6,0xd1444425,0x4d548085,0x1fb12c75,0x862dd807,
243 0x5841d97c,0x226e414e,0x9e088200,0xedb7f80d,0x75668c80,0x08149313,
244 0xc8040e32,0x6ea6484e,0x66742c4a,0xba0126c0,0x185dd70c,0x00000000,
245 0x00000000,0x00000000,0x00000000,0x05400000,0x813370a0,0x03a54f81,
246 0x641055ec,0x2344c31a,0x00341462,0x1a090a43,0x13a5187b,0xa8480102,
247 0xc5440440,0xe2dd8106,0x2d481af0,0x0416b626,0x6e405058,0x31128032,
248 0x0c0007e4,0x420a8208,0x803b4840,0x87134860,0x3428850d,0xe5290319,
249 0x870a2345,0x5c1825a9,0xd9c577a6,0x03e85e00,0xa7000081,0x41c6cd54,
250 0xa2042800,0x2b0ab860,0xda9e0020,0x0e1a08ea,0x11c0427e,0x03768908,
251 0x01058621,0x98a80004,0xc44846a0,0x20220d05,0x914854a2,0x28d78a01,
252 0x00087898,0x31221605,0x08804340,0x06a2fa4e,0x92110814,0x9b142002,
253 0x16432e52,0x90105000,0x85ba0041,0x20203042,0x07a84f0b,0x40802f08,
254 0x1a930591,0x0601df50,0x3021a202,0x4e800630,0x04c80cc4,0x8001a004,
255 0xd4316000,0x0a020880,0x00281c00,0x00418e18,0xca106ad0,0x4b00f210,
256 0x1506274d,0x88900220,0x82a85a00,0x81504549,0x80002004,0x2c088804,
257 0x000508d1,0x4ac48001,0x0062e0a0,0x0a42008e,0x6a8c3055,0xe0a5090e,
258 0x42c42906,0x80b34814,0xb330803e,0x733c0102,0x700d1494,0x09400c20,
259 0xc040301a,0xc094a451,0x05c88dca,0xa40c96c2,0x34040001,0x011000c8,
260 0xa9cd550d,0x1cda2428,0x48370142,0x120f7a4d,0x452a32b4,0xd20531fb,
261 0xdc44b894,0x45ca68d7,0x2ed15097,0x42081943,0x9d48d202,0xa0979840,
262 0x064d5409,0x00000000,0x00000000,0x00000000,0x00000000,0x84800000,
263 0x04215542,0x17001c06,0x61107624,0xb9ddff87,0x5c0a659f,0x3c11245d,
264 0x005dadb0,0x00000000,0x00000000,0x00db28d0,0x02000422,0x44080108,
265 0xac409804,0x90288d0a,0xe0018700,0x00310400,0x82211794,0x10540019,
266 0x021a2cb2,0x40039c02,0x8804bd60,0x7900080c,0xba3c1628,0xcb088640,
267 0x90807274,0x0000001e,0xd8000000,0x9c87e188,0x04124034,0x2791ae64,
268 0xe6fbe86b,0x5366408f,0x537feea6,0xb5e4e3ab,0x0002869f,0x01228548,
269 0x48004402,0x20a02116,0x02240004,0x00052080,0x01547e00,0x01ac162c,
270 0x10852a84,0x05308c14,0xfdc3fbc3,0x906060fa,0x40336440,0x96901200,
271 0x4e834b31,0x418200d4,0x1d6a0129,0x02802080,0x02ad8000,0x9f0c2691,
272 0x67018044,0x0c24d96f,0x18d02910,0x50215001,0x04d01000,0x02017090,
273 0x61c30148,0x01000132,0x07190088,0x05620802,0x4c0e0132,0xf0a10405,
274 0x00000002,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
275 0x00000000,0x00800000,0x035e8e8d,0x5a0421bd,0x11703488,0x00000026,
276 0x10000000,0x8804c502,0xf801b815,0x25ed147c,0x3bb0ed60,0x1bd78589,
277 0x1a627af3,0x0ac50d0c,0x524ae5d1,0x6b0d0490,0x5266a35c,0x16122b57,
278 0x1101a872,0x00182949,0x10080948,0x886c6000,0x058f916e,0x39903012,
279 0x49b0f840,0x001b88a0,0x00000000,0x00428500,0x98000058,0x7014ea04,
280 0x611d1628,0x60005193,0x00a71a24,0x00000000,0x43c00000,0x10187120,
281 0xa9270172,0x89066004,0x020cc022,0x40810900,0x8ca0602d,0x00000e34,
282 0x00000000,0x11012100,0xd31a8011,0x0892ec4c,0x85000040,0x1806c7ac,
283 0x0512e03e,0x00348000,0x80cec008,0x0a126d01,0x08568641,0x0027011e,
284 0x083d3751,0x4e05e032,0x048401c0,0x01400081,0x00000000,0x00000000,
285 0x00000000,0x00591aa0,0x882443c8,0xc8001d48,0x72030152,0x04059813,
286 0x04008280,0x0d148a10,0x02088056,0x2704a040,0x4e000000,0x00000000,
287 0x00000000,0xa3200000,0xa0ae1902,0xdf002660,0x7b17f010,0x3ad08121,
288 0x00284180,0x48001003,0x8014cc00,0x00c414cf,0x30202000,0x00000001,
289 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
290 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
291 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
292 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
293 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
294 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
295 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
296 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
297 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
298 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
299 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
300 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
301 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
302 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
303 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
304 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
305 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
306 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
307 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
308 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
309 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
310 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
311 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
312 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
313 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
314 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
315 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
316 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
317 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
318 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
319 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
320 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
321 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
322 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
323 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
324 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
325 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
326 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
327 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
328 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
329 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
330 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
331 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
332 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
333 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
334 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
335 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
336 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
337 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
338 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
339 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
340 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
341 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
342 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
343 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
344 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
345 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
346 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
347 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
348 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
349 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
350 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
351 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
352 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
353 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
354 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
355 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
356 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
357 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
358 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
359 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
360 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
361 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
362 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
363 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
364 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
365 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
366 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
367 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
368 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
369 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
370 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
371 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
372 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
373 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
374 0x00000000,0x00000000,0x00000000,0x00000000,0xffffffff,0xffffffff,
375 0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,
376 0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,
377 0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,
378 0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,
379 0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,
380 0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,
381 0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,
382 0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,
383 0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,
384 0xffffffff,0xffffffff,0x00ffffff,0x00000000,0x00000000,0x00000000,
385 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
386 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
387 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
388 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
389 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
390 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
391 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
392 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
393 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
394 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
395 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
396 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
397 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
398 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
399 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
400 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
401 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
402 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
403 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
404 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
405 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
406 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
407 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x000f0000,
408 0x00000000,0x00000200,0x00000000,0x00000000,0x00000000,0x00000000,
409 0x10000000,0x00000000,0xffffc000,0x00003fff,0x00000000,0x00000000,
410 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
411 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
412 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
413 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
414 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
415 0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
416 0xfffffffe,0xffffffff,0x7fffffff,0xfffffffe,0xffffffff,0x00000000,
417 0x00000000,0x0000003f
418};
419
420#if 0
421/*
422 * The following program regenerates the good old valid.dat. Try it
423 * yourself :-)
424 */
425int main(void)
426{
427 int i;
428 for (i=0; i<65536; i++) {
429 char c = (valid_table[i/32] & (1<<(i%32))) ? 1 : 0;
430 write(1, &c, 1);
431 }
432}
433#endif
434
435static bool isvalid83_w(smb_ucs2_t c)
436{
437 uint16_t idx = SVAL(&c, 0);
438 return (valid_table[idx/32] & (1 << (idx%32))) != 0;
439}
440
441static NTSTATUS has_valid_83_chars(const smb_ucs2_t *s, bool allow_wildcards)
442{
443 if (!*s) {
444 return NT_STATUS_INVALID_PARAMETER;
445 }
446
447 if (!allow_wildcards && ms_has_wild_w(s)) {
448 return NT_STATUS_UNSUCCESSFUL;
449 }
450
451 while (*s) {
452 if(!isvalid83_w(*s)) {
453 return NT_STATUS_UNSUCCESSFUL;
454 }
455 s++;
456 }
457
458 return NT_STATUS_OK;
459}
460
461static NTSTATUS has_illegal_chars(const smb_ucs2_t *s, bool allow_wildcards)
462{
463 if (!allow_wildcards && ms_has_wild_w(s)) {
464 return NT_STATUS_UNSUCCESSFUL;
465 }
466
467 while (*s) {
468 if (*s <= 0x1f) {
469 /* Control characters. */
470 return NT_STATUS_UNSUCCESSFUL;
471 }
472 switch(*s) {
473 case UCS2_CHAR('\\'):
474 case UCS2_CHAR('/'):
475 case UCS2_CHAR('|'):
476 case UCS2_CHAR(':'):
477 return NT_STATUS_UNSUCCESSFUL;
478 }
479 s++;
480 }
481
482 return NT_STATUS_OK;
483}
484
485/*******************************************************************
486 Duplicate string.
487********************************************************************/
488
489static smb_ucs2_t *strdup_w(const smb_ucs2_t *src)
490{
491 smb_ucs2_t *dest;
492 size_t len = strlen_w(src);
493 dest = SMB_MALLOC_ARRAY(smb_ucs2_t, len + 1);
494 if (!dest) {
495 DEBUG(0,("strdup_w: out of memory!\n"));
496 return NULL;
497 }
498
499 memcpy(dest, src, len * sizeof(smb_ucs2_t));
500 dest[len] = 0;
501 return dest;
502}
503
504/* return False if something fail and
505 * return 2 alloced unicode strings that contain prefix and extension
506 */
507
508static NTSTATUS mangle_get_prefix(const smb_ucs2_t *ucs2_string, smb_ucs2_t **prefix,
509 smb_ucs2_t **extension, bool allow_wildcards)
510{
511 size_t ext_len;
512 smb_ucs2_t *p;
513
514 *extension = 0;
515 *prefix = strdup_w(ucs2_string);
516 if (!*prefix) {
517 return NT_STATUS_NO_MEMORY;
518 }
519 if ((p = strrchr_w(*prefix, UCS2_CHAR('.')))) {
520 ext_len = strlen_w(p+1);
521 if ((ext_len > 0) && (ext_len < 4) && (p != *prefix) &&
522 (NT_STATUS_IS_OK(has_valid_83_chars(p+1,allow_wildcards)))) /* check extension */ {
523 *p = 0;
524 *extension = strdup_w(p+1);
525 if (!*extension) {
526 SAFE_FREE(*prefix);
527 return NT_STATUS_NO_MEMORY;
528 }
529 }
530 }
531 return NT_STATUS_OK;
532}
533
534/* ************************************************************************** **
535 * Return NT_STATUS_UNSUCCESSFUL if a name is a special msdos reserved name.
536 * or contains illegal characters.
537 *
538 * Input: fname - String containing the name to be tested.
539 *
540 * Output: NT_STATUS_UNSUCCESSFUL, if the condition above is true.
541 *
542 * Notes: This is a static function called by is_8_3(), below.
543 *
544 * ************************************************************************** **
545 */
546
547static NTSTATUS is_valid_name(const smb_ucs2_t *fname, bool allow_wildcards, bool only_8_3)
548{
549 smb_ucs2_t *str, *p;
550 size_t num_ucs2_chars;
551 NTSTATUS ret = NT_STATUS_OK;
552
553 if (!fname || !*fname)
554 return NT_STATUS_INVALID_PARAMETER;
555
556 /* . and .. are valid names. */
557 if (strcmp_wa(fname, ".")==0 || strcmp_wa(fname, "..")==0)
558 return NT_STATUS_OK;
559
560 if (only_8_3) {
561 ret = has_valid_83_chars(fname, allow_wildcards);
562 if (!NT_STATUS_IS_OK(ret))
563 return ret;
564 }
565
566 ret = has_illegal_chars(fname, allow_wildcards);
567 if (!NT_STATUS_IS_OK(ret))
568 return ret;
569
570 /* Name can't end in '.' or ' ' */
571 num_ucs2_chars = strlen_w(fname);
572 if (fname[num_ucs2_chars-1] == UCS2_CHAR('.') || fname[num_ucs2_chars-1] == UCS2_CHAR(' ')) {
573 return NT_STATUS_UNSUCCESSFUL;
574 }
575
576 str = strdup_w(fname);
577
578 /* Truncate copy after the first dot. */
579 p = strchr_w(str, UCS2_CHAR('.'));
580 if (p) {
581 *p = 0;
582 }
583
584 strupper_w(str);
585 p = &str[1];
586
587 switch(str[0])
588 {
589 case UCS2_CHAR('A'):
590 if(strcmp_wa(p, "UX") == 0)
591 ret = NT_STATUS_UNSUCCESSFUL;
592 break;
593 case UCS2_CHAR('C'):
594 if((strcmp_wa(p, "LOCK$") == 0)
595 || (strcmp_wa(p, "ON") == 0)
596 || (strcmp_wa(p, "OM1") == 0)
597 || (strcmp_wa(p, "OM2") == 0)
598 || (strcmp_wa(p, "OM3") == 0)
599 || (strcmp_wa(p, "OM4") == 0)
600 )
601 ret = NT_STATUS_UNSUCCESSFUL;
602 break;
603 case UCS2_CHAR('L'):
604 if((strcmp_wa(p, "PT1") == 0)
605 || (strcmp_wa(p, "PT2") == 0)
606 || (strcmp_wa(p, "PT3") == 0)
607 )
608 ret = NT_STATUS_UNSUCCESSFUL;
609 break;
610 case UCS2_CHAR('N'):
611 if(strcmp_wa(p, "UL") == 0)
612 ret = NT_STATUS_UNSUCCESSFUL;
613 break;
614 case UCS2_CHAR('P'):
615 if(strcmp_wa(p, "RN") == 0)
616 ret = NT_STATUS_UNSUCCESSFUL;
617 break;
618 default:
619 break;
620 }
621
622 SAFE_FREE(str);
623 return ret;
624}
625
626static NTSTATUS is_8_3_w(const smb_ucs2_t *fname, bool allow_wildcards)
627{
628 smb_ucs2_t *pref = 0, *ext = 0;
629 size_t plen;
630 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
631
632 if (!fname || !*fname)
633 return NT_STATUS_INVALID_PARAMETER;
634
635 if (strlen_w(fname) > 12)
636 return NT_STATUS_UNSUCCESSFUL;
637
638 if (strcmp_wa(fname, ".") == 0 || strcmp_wa(fname, "..") == 0)
639 return NT_STATUS_OK;
640
641 /* Name cannot start with '.' */
642 if (*fname == UCS2_CHAR('.'))
643 return NT_STATUS_UNSUCCESSFUL;
644
645 if (!NT_STATUS_IS_OK(is_valid_name(fname, allow_wildcards, True)))
646 goto done;
647
648 if (!NT_STATUS_IS_OK(mangle_get_prefix(fname, &pref, &ext, allow_wildcards)))
649 goto done;
650 plen = strlen_w(pref);
651
652 if (strchr_wa(pref, '.'))
653 goto done;
654 if (plen < 1 || plen > 8)
655 goto done;
656 if (ext && (strlen_w(ext) > 3))
657 goto done;
658
659 ret = NT_STATUS_OK;
660
661done:
662 SAFE_FREE(pref);
663 SAFE_FREE(ext);
664 return ret;
665}
666
667static bool is_8_3(const char *fname, bool check_case, bool allow_wildcards,
668 const struct share_params *p)
669{
670 const char *f;
671 smb_ucs2_t *ucs2name;
672 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
673 size_t size;
674
675 if (!fname || !*fname)
676 return False;
677 if ((f = strrchr(fname, '/')) == NULL)
678 f = fname;
679 else
680 f++;
681
682 if (strlen(f) > 12)
683 return False;
684
685 if (!push_ucs2_talloc(NULL, &ucs2name, f, &size)) {
686 DEBUG(0,("is_8_3: internal error push_ucs2_talloc() failed!\n"));
687 goto done;
688 }
689
690 ret = is_8_3_w(ucs2name, allow_wildcards);
691
692done:
693 TALLOC_FREE(ucs2name);
694
695 if (!NT_STATUS_IS_OK(ret)) {
696 return False;
697 }
698
699 return True;
700}
701
702/* -------------------------------------------------------------------------- **
703 * Functions...
704 */
705
706/* ************************************************************************** **
707 * Initialize the static character test array.
708 *
709 * Input: none
710 *
711 * Output: none
712 *
713 * Notes: This function changes (loads) the contents of the <chartest>
714 * array. The scope of <chartest> is this file.
715 *
716 * ************************************************************************** **
717 */
718
719static void init_chartest( void )
720{
721 const unsigned char *s;
722
723 chartest = SMB_MALLOC_ARRAY(unsigned char, 256);
724
725 SMB_ASSERT(chartest != NULL);
726 memset(chartest, '\0', 256);
727
728 for( s = (const unsigned char *)basechars; *s; s++ ) {
729 chartest[*s] |= BASECHAR_MASK;
730 }
731}
732
733/* ************************************************************************** **
734 * Return True if the name *could be* a mangled name.
735 *
736 * Input: s - A path name - in UNIX pathname format.
737 *
738 * Output: True if the name matches the pattern described below in the
739 * notes, else False.
740 *
741 * Notes: The input name is *not* tested for 8.3 compliance. This must be
742 * done separately. This function returns true if the name contains
743 * a magic character followed by excactly two characters from the
744 * basechars list (above), which in turn are followed either by the
745 * nul (end of string) byte or a dot (extension) or by a '/' (end of
746 * a directory name).
747 *
748 * ************************************************************************** **
749 */
750
751static bool is_mangled(const char *s, const struct share_params *p)
752{
753 char *magic;
754 char magic_char;
755
756 magic_char = lp_mangling_char(p);
757
758 if (chartest == NULL) {
759 init_chartest();
760 }
761
762 magic = strchr_m( s, magic_char );
763 while( magic && magic[1] && magic[2] ) { /* 3 chars, 1st is magic. */
764 if( ('.' == magic[3] || '/' == magic[3] || !(magic[3])) /* Ends with '.' or nul or '/' ? */
765 && isbasechar( toupper_m(magic[1]) ) /* is 2nd char basechar? */
766 && isbasechar( toupper_m(magic[2]) ) ) /* is 3rd char basechar? */
767 return( True ); /* If all above, then true, */
768 magic = strchr_m( magic+1, magic_char ); /* else seek next magic. */
769 }
770 return( False );
771}
772
773/***************************************************************************
774 Initializes or clears the mangled cache.
775***************************************************************************/
776
777static void mangle_reset( void )
778{
779 /* We could close and re-open the tdb here... should we ? The old code did
780 the equivalent... JRA. */
781}
782
783/***************************************************************************
784 Add a mangled name into the cache.
785 If the extension of the raw name maps directly to the
786 extension of the mangled name, then we'll store both names
787 *without* extensions. That way, we can provide consistent
788 reverse mangling for all names that match. The test here is
789 a bit more careful than the one done in earlier versions of
790 mangle.c:
791
792 - the extension must exist on the raw name,
793 - it must be all lower case
794 - it must match the mangled extension (to prove that no
795 mangling occurred).
796 crh 07-Apr-1998
797**************************************************************************/
798
799static void cache_mangled_name( const char mangled_name[13],
800 const char *raw_name )
801{
802 TDB_DATA data_val;
803 char mangled_name_key[13];
804 char *s1 = NULL;
805 char *s2 = NULL;
806
807 /* If the cache isn't initialized, give up. */
808 if( !tdb_mangled_cache )
809 return;
810
811 /* Init the string lengths. */
812 strlcpy(mangled_name_key, mangled_name, sizeof(mangled_name_key));
813
814 /* See if the extensions are unmangled. If so, store the entry
815 * without the extension, thus creating a "group" reverse map.
816 */
817 s1 = strrchr( mangled_name_key, '.' );
818 if( s1 && (s2 = strrchr( raw_name, '.' )) ) {
819 size_t i = 1;
820 while( s1[i] && (tolower_m( s1[i] ) == s2[i]) )
821 i++;
822 if( !s1[i] && !s2[i] ) {
823 /* Truncate at the '.' */
824 *s1 = '\0';
825 /*
826 * DANGER WILL ROBINSON - this
827 * is changing a const string via
828 * an aliased pointer ! Remember to
829 * put it back once we've used it.
830 * JRA
831 */
832 *s2 = '\0';
833 }
834 }
835
836 /* Allocate a new cache entry. If the allocation fails, just return. */
837 data_val = string_term_tdb_data(raw_name);
838 if (tdb_store_bystring(tdb_mangled_cache, mangled_name_key, data_val, TDB_REPLACE) != 0) {
839 DEBUG(0,("cache_mangled_name: Error storing entry %s -> %s\n", mangled_name_key, raw_name));
840 } else {
841 DEBUG(5,("cache_mangled_name: Stored entry %s -> %s\n", mangled_name_key, raw_name));
842 }
843 /* Restore the change we made to the const string. */
844 if (s2) {
845 *s2 = '.';
846 }
847}
848
849/* ************************************************************************** **
850 * Check for a name on the mangled name stack
851 *
852 * Input: s - Input *and* output string buffer.
853 * maxlen - space in i/o string buffer.
854 * Output: True if the name was found in the cache, else False.
855 *
856 * Notes: If a reverse map is found, the function will overwrite the string
857 * space indicated by the input pointer <s>. This is frightening.
858 * It should be rewritten to return NULL if the long name was not
859 * found, and a pointer to the long name if it was found.
860 *
861 * ************************************************************************** **
862 */
863
864static bool lookup_name_from_8_3(TALLOC_CTX *ctx,
865 const char *in,
866 char **out, /* talloced on the given context. */
867 const struct share_params *p)
868{
869 TDB_DATA data_val;
870 char *saved_ext = NULL;
871 char *s = talloc_strdup(ctx, in);
872
873 /* If the cache isn't initialized, give up. */
874 if(!s || !tdb_mangled_cache ) {
875 TALLOC_FREE(s);
876 return False;
877 }
878
879 data_val = tdb_fetch_bystring(tdb_mangled_cache, s);
880
881 /* If we didn't find the name *with* the extension, try without. */
882 if(data_val.dptr == NULL || data_val.dsize == 0) {
883 char *ext_start = strrchr( s, '.' );
884 if( ext_start ) {
885 if((saved_ext = talloc_strdup(ctx,ext_start)) == NULL) {
886 TALLOC_FREE(s);
887 return False;
888 }
889
890 *ext_start = '\0';
891 data_val = tdb_fetch_bystring(tdb_mangled_cache, s);
892 /*
893 * At this point s is the name without the
894 * extension. We re-add the extension if saved_ext
895 * is not null, before freeing saved_ext.
896 */
897 }
898 }
899
900 /* Okay, if we haven't found it we're done. */
901 if(data_val.dptr == NULL || data_val.dsize == 0) {
902 TALLOC_FREE(saved_ext);
903 TALLOC_FREE(s);
904 return False;
905 }
906
907 /* If we *did* find it, we need to talloc it on the given ctx. */
908 if (saved_ext) {
909 *out = talloc_asprintf(ctx, "%s%s",
910 (char *)data_val.dptr,
911 saved_ext);
912 } else {
913 *out = talloc_strdup(ctx, (char *)data_val.dptr);
914 }
915
916 TALLOC_FREE(s);
917 TALLOC_FREE(saved_ext);
918 SAFE_FREE(data_val.dptr);
919
920 return *out ? True : False;
921}
922
923/**
924 Check if a string is in "normal" case.
925**/
926
927static bool strisnormal(const char *s, int case_default)
928{
929 if (case_default == CASE_UPPER)
930 return(!strhaslower(s));
931
932 return(!strhasupper(s));
933}
934
935
936/*****************************************************************************
937 Do the actual mangling to 8.3 format.
938*****************************************************************************/
939
940static bool to_8_3(char magic_char, const char *in, char out[13], int default_case)
941{
942 int csum;
943 char *p;
944 char extension[4];
945 char base[9];
946 int baselen = 0;
947 int extlen = 0;
948 char *s = SMB_STRDUP(in);
949
950 extension[0] = 0;
951 base[0] = 0;
952
953 if (!s) {
954 return False;
955 }
956
957 p = strrchr(s,'.');
958 if( p && (strlen(p+1) < (size_t)4) ) {
959 bool all_normal = ( strisnormal(p+1, default_case) ); /* XXXXXXXXX */
960
961 if( all_normal && p[1] != 0 ) {
962 *p = 0;
963 csum = str_checksum( s );
964 *p = '.';
965 } else
966 csum = str_checksum(s);
967 } else
968 csum = str_checksum(s);
969
970 if (!strupper_m( s )) {
971 SAFE_FREE(s);
972 return false;
973 }
974
975 if( p ) {
976 if( p == s )
977 strlcpy( extension, "___", 4);
978 else {
979 *p++ = 0;
980 while( *p && extlen < 3 ) {
981 if ( *p != '.') {
982 extension[extlen++] = p[0];
983 }
984 p++;
985 }
986 extension[extlen] = 0;
987 }
988 }
989
990 p = s;
991
992 while( *p && baselen < 5 ) {
993 if (isbasechar(*p)) {
994 base[baselen++] = p[0];
995 }
996 p++;
997 }
998 base[baselen] = 0;
999
1000 csum = csum % (MANGLE_BASE*MANGLE_BASE);
1001
1002 memcpy(out, base, baselen);
1003 out[baselen] = magic_char;
1004 out[baselen+1] = mangle( csum/MANGLE_BASE );
1005 out[baselen+2] = mangle( csum );
1006
1007 if( *extension ) {
1008 out[baselen+3] = '.';
1009 strlcpy(&out[baselen+4], extension, 4);
1010 }
1011
1012 SAFE_FREE(s);
1013 return True;
1014}
1015
1016static bool must_mangle(const char *name,
1017 const struct share_params *p)
1018{
1019 smb_ucs2_t *name_ucs2 = NULL;
1020 NTSTATUS status;
1021 size_t converted_size;
1022
1023 if (!push_ucs2_talloc(NULL, &name_ucs2, name, &converted_size)) {
1024 DEBUG(0, ("push_ucs2_talloc failed!\n"));
1025 return False;
1026 }
1027 status = is_valid_name(name_ucs2, False, False);
1028 TALLOC_FREE(name_ucs2);
1029 /* We return true if we *must* mangle, so if it's
1030 * a valid name (status == OK) then we must return
1031 * false. Bug #6939. */
1032 return !NT_STATUS_IS_OK(status);
1033}
1034
1035/*****************************************************************************
1036 * Convert a filename to DOS format. Return True if successful.
1037 * Input: in Incoming name.
1038 *
1039 * out 8.3 DOS name.
1040 *
1041 * cache83 - If False, the mangled name cache will not be updated.
1042 * This is usually used to prevent that we overwrite
1043 * a conflicting cache entry prematurely, i.e. before
1044 * we know whether the client is really interested in the
1045 * current name. (See PR#13758). UKD.
1046 *
1047 * ****************************************************************************
1048 */
1049
1050static bool hash_name_to_8_3(const char *in,
1051 char out[13],
1052 bool cache83,
1053 int default_case,
1054 const struct share_params *p)
1055{
1056 smb_ucs2_t *in_ucs2 = NULL;
1057 size_t converted_size;
1058 char magic_char;
1059
1060 magic_char = lp_mangling_char(p);
1061
1062 DEBUG(5,("hash_name_to_8_3( %s, cache83 = %s)\n", in,
1063 cache83 ? "True" : "False"));
1064
1065 if (!push_ucs2_talloc(NULL, &in_ucs2, in, &converted_size)) {
1066 DEBUG(0, ("push_ucs2_talloc failed!\n"));
1067 return False;
1068 }
1069
1070 /* If it's already 8.3, just copy. */
1071 if (NT_STATUS_IS_OK(is_valid_name(in_ucs2, False, False)) &&
1072 NT_STATUS_IS_OK(is_8_3_w(in_ucs2, False))) {
1073 TALLOC_FREE(in_ucs2);
1074 strlcpy(out, in, 13);
1075 return True;
1076 }
1077
1078 TALLOC_FREE(in_ucs2);
1079 if (!to_8_3(magic_char, in, out, default_case)) {
1080 return False;
1081 }
1082
1083 cache_mangled_name(out, in);
1084
1085 DEBUG(5,("hash_name_to_8_3(%s) ==> [%s]\n", in, out));
1086 return True;
1087}
1088
1089/*
1090 the following provides the abstraction layer to make it easier
1091 to drop in an alternative mangling implementation
1092*/
1093static const struct mangle_fns mangle_hash_fns = {
1094 mangle_reset,
1095 is_mangled,
1096 must_mangle,
1097 is_8_3,
1098 lookup_name_from_8_3,
1099 hash_name_to_8_3
1100};
1101
1102/* return the methods for this mangling implementation */
1103const struct mangle_fns *mangle_hash_init(void)
1104{
1105 mangle_reset();
1106
1107 if (chartest == NULL) {
1108 init_chartest();
1109 }
1110
1111 /* Create the in-memory tdb using our custom hash function. */
1112 tdb_mangled_cache = tdb_open_ex("mangled_cache", 1031, TDB_INTERNAL,
1113 (O_RDWR|O_CREAT), 0644, NULL, fast_string_hash);
1114
1115 return &mangle_hash_fns;
1116}
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