Coverage Report

Created: 2025-02-15 06:25

/src/wireshark/epan/dissectors/packet-ncp-sss.c
Line
Count
Source (jump to first uncovered line)
1
/* packet-ncp-sss.c
2
 * Routines for Novell SecretStore Services
3
 * Greg Morris <gmorris@novell.com>
4
 * Copyright (c) Novell, Inc. 2002-2003
5
 *
6
 * Wireshark - Network traffic analyzer
7
 * By Gerald Combs <gerald@wireshark.org>
8
 * Copyright 1998 Gerald Combs
9
 *
10
 * SPDX-License-Identifier: GPL-2.0-or-later
11
 */
12
13
#include "config.h"
14
15
#include <epan/packet.h>
16
#include "packet-ncp-int.h"
17
#include "packet-ncp-sss.h"
18
19
void proto_register_sss(void);
20
21
static int ett_sss;
22
23
static int proto_sss;
24
static int hf_sss_buffer_size;
25
static int hf_sss_ping_version;
26
static int hf_sss_flags;
27
static int hf_sss_context;
28
static int hf_sss_frag_handle;
29
static int hf_sss_length;
30
static int hf_sss_verb;
31
static int hf_sss_user;
32
static int hf_sss_secret;
33
static int hf_sss_sss_version;
34
static int hf_sss_return_code;
35
static int hf_sss_enc_cred;
36
static int hf_sss_enc_data;
37
static int hf_sss_bit1;
38
static int hf_sss_bit2;
39
static int hf_sss_bit3;
40
static int hf_sss_bit4;
41
static int hf_sss_bit5;
42
static int hf_sss_bit6;
43
static int hf_sss_bit7;
44
static int hf_sss_bit8;
45
static int hf_sss_bit9;
46
static int hf_sss_bit10;
47
static int hf_sss_bit11;
48
static int hf_sss_bit12;
49
static int hf_sss_bit13;
50
static int hf_sss_bit14;
51
static int hf_sss_bit15;
52
static int hf_sss_bit16;
53
static int hf_sss_bit17;
54
static int hf_sss_bit18;
55
static int hf_sss_bit19;
56
static int hf_sss_bit20;
57
static int hf_sss_bit21;
58
static int hf_sss_bit22;
59
static int hf_sss_bit23;
60
static int hf_sss_bit24;
61
static int hf_sss_bit25;
62
static int hf_sss_bit26;
63
static int hf_sss_bit27;
64
static int hf_sss_bit28;
65
static int hf_sss_bit29;
66
static int hf_sss_bit30;
67
static int hf_sss_bit31;
68
static int hf_sss_bit32;
69
70
static expert_field ei_return_code;
71
72
static const value_string sss_func_enum[] = {
73
    { 0x00000001, "Ping Server" },
74
    { 0x00000002, "Fragment" },
75
    { 0x00000003, "Write App Secrets" },
76
    { 0x00000004, "Add Secret ID" },
77
    { 0x00000005, "Remove Secret ID" },
78
    { 0x00000006, "Remove SecretStore" },
79
    { 0x00000007, "Enumerate Secret IDs" },
80
    { 0x00000008, "Unlock Store" },
81
    { 0x00000009, "Set Master Password" },
82
    { 0x0000000a, "Get Service Information" },
83
    { 0,          NULL }
84
};
85
86
static const value_string sss_errors_enum[] = {
87
    { 0xFFFFFCE0, "(-800) Target object could not be found" },
88
    { 0xFFFFFCDF, "(-801) NICI operations have failed" },
89
    { 0xFFFFFCDE, "(-802) The Secret ID is not in the user secret store" },
90
    { 0xFFFFFCDD, "(-803) Some internal operating system services have not been available" },
91
    { 0xFFFFFCDC, "(-804) Access to the target Secret Store has been denied" },
92
    { 0xFFFFFCDB, "(-805) NDS internal NDS services have not been available" },
93
    { 0xFFFFFCDA, "(-806) Secret has not been initialized with a write" },
94
    { 0xFFFFFCD9, "(-807) Size of the buffer is not in a nominal range between minimum and maximum" },
95
    { 0xFFFFFCD8, "(-808) Client and server components are not of the compatible versions" },
96
    { 0xFFFFFCD7, "(-809) Secret Store data on the server has been corrupted" },
97
    { 0xFFFFFCD6, "(-810) Secret ID already exists in the SecretStore" },
98
    { 0xFFFFFCD5, "(-811) User NDS password has been changed by the administrator" },
99
    { 0xFFFFFCD4, "(-812) Target NDS user object not found" },
100
    { 0xFFFFFCD3, "(-813) Target NDS user object does not have a Secret Store" },
101
    { 0xFFFFFCD2, "(-814) Secret Store is not on the network" },
102
    { 0xFFFFFCD1, "(-815) Length of the Secret ID buffer exceeds the limit" },
103
    { 0xFFFFFCD0, "(-816) Length of the enumeration buffer is too short" },
104
    { 0xFFFFFCCF, "(-817) User not authenticated" },
105
    { 0xFFFFFCCE, "(-818) Not supported operations" },
106
    { 0xFFFFFCCD, "(-819) Typed in NDS password not valid" },
107
    { 0xFFFFFCCC, "(-820) Session keys of the client and server NICI are out of sync" },
108
    { 0xFFFFFCCB, "(-821) Requested service not yet supported" },
109
    { 0xFFFFFCCA, "(-822) NDS authentication type not supported" },
110
    { 0xFFFFFCC9, "(-823) Unicode text conversion operation failed" },
111
    { 0xFFFFFCC8, "(-824) Connection to server is lost" },
112
    { 0xFFFFFCC7, "(-825) Cryptographic operation failed" },
113
    { 0xFFFFFCC6, "(-826) Opening a connection to the server failed" },
114
    { 0xFFFFFCC5, "(-827) Access to server connection failed" },
115
    { 0xFFFFFCC4, "(-828) Size of the enumeration buffer exceeds the limit" },
116
    { 0xFFFFFCC3, "(-829) Size of the Secret buffer exceeds the limit" },
117
    { 0xFFFFFCC2, "(-830) Length of the Secret ID should be greater than zero" },
118
    { 0xFFFFFCC1, "(-831) Protocol data corrupted on the wire" },
119
    { 0xFFFFFCC0, "(-832) Enhanced protection's password validation failed. Access to the secret denied" },
120
    { 0xFFFFFCBF, "(-833) Schema is not extended to support SecretStore on the target tree" },
121
    { 0xFFFFFCBE, "(-834) One of the optional service attributes is not instantiated" },
122
    { 0xFFFFFCBD, "(-835) Server has been upgraded and the users SecretStore should be updated" },
123
    { 0xFFFFFCBC, "(-836) Master password could not be verified to read or unlock the secrets" },
124
    { 0xFFFFFCBB, "(-837) Master password has not been set on the SecretStore" },
125
    { 0xFFFFFCBA, "(-838) Ability to use master password has been disabled" },
126
    { 0xFFFFFCB9, "(-839) Not a writeable replica of NDS" },
127
    { 0xFFFFFCB8, "(-840) The API was unable to find a value for an attribute in the Directory" },
128
    { 0xFFFFFCB7, "(-841) A parameter passed to the API has not been properly initialized" },
129
    { 0xFFFFFCB6, "(-842) The connection to SecretStore requires SSL to be secure" },
130
    { 0xFFFFFCB5, "(-843) The client could not locate a server that supports the policy override required by the caller" },
131
    { 0xFFFFFCB4, "(-844) Attempt to unlock SecretStore failed because the store is not locked" },
132
    { 0xFFFFFCB3, "(-845) NDS Replica on the server that holds SecretStore is out of sync with the replica ring" },
133
    { 0xFFFFFC88, "(-888) Feature not yet implemented" },
134
    { 0xFFFFFC7D, "(-899) Products BETA life has expired" },
135
    { 0,          NULL }
136
};
137
138
139
static void
140
process_flags(proto_tree *sss_tree, tvbuff_t *tvb, uint32_t foffset)
141
0
{
142
0
    char                    flags_str[1024];
143
0
    const char             *sep;
144
0
    proto_item             *tinew;
145
0
    proto_tree             *flags_tree;
146
0
    uint32_t                i;
147
0
    uint32_t                bvalue = 0;
148
0
    uint32_t                flags = 0;
149
150
0
    bvalue = 0x00000001;
151
0
    flags_str[0]='\0';
152
0
    sep="";
153
0
    flags = tvb_get_ntohl(tvb, foffset);
154
0
    for (i = 0 ; i < 256; i++) {
155
0
        if (flags & bvalue) {
156
0
            (void) g_strlcat(flags_str, sep, 1024);
157
0
            switch(bvalue) {
158
0
                case 0x00000001:
159
0
                        (void) g_strlcat(flags_str, "Enhanced Protection", 1024);
160
0
                        break;
161
0
                case 0x00000002:
162
0
                        (void) g_strlcat(flags_str, "Create ID", 1024);
163
0
                        break;
164
0
                case 0x00000004:
165
0
                        (void) g_strlcat(flags_str, "Remove Lock", 1024);
166
0
                        break;
167
0
                case 0x00000008:
168
0
                        (void) g_strlcat(flags_str, "Repair", 1024);
169
0
                        break;
170
0
                case 0x00000010:
171
0
                        (void) g_strlcat(flags_str, "Unicode", 1024);
172
0
                        break;
173
0
                case 0x00000020:
174
0
                        (void) g_strlcat(flags_str, "EP Master Password Used", 1024);
175
0
                        break;
176
0
                case 0x00000040:
177
0
                        (void) g_strlcat(flags_str, "EP Password Used", 1024);
178
0
                        break;
179
0
                case 0x00000080:
180
0
                        (void) g_strlcat(flags_str, "Set Tree Name", 1024);
181
0
                        break;
182
0
                case 0x00000100:
183
0
                        (void) g_strlcat(flags_str, "Get Context", 1024);
184
0
                        break;
185
0
                case 0x00000200:
186
0
                        (void) g_strlcat(flags_str, "Destroy Context", 1024);
187
0
                        break;
188
0
                case 0x00000400:
189
0
                        (void) g_strlcat(flags_str, "Not Defined", 1024);
190
0
                        break;
191
0
                case 0x00000800:
192
0
                        (void) g_strlcat(flags_str, "Not Defined", 1024);
193
0
                        break;
194
0
                case 0x00001000:
195
0
                        (void) g_strlcat(flags_str, "EP Lock", 1024);
196
0
                        break;
197
0
                case 0x00002000:
198
0
                        (void) g_strlcat(flags_str, "Not Initialized", 1024);
199
0
                        break;
200
0
                case 0x00004000:
201
0
                        (void) g_strlcat(flags_str, "Enhanced Protection", 1024);
202
0
                        break;
203
0
                case 0x00008000:
204
0
                        (void) g_strlcat(flags_str, "Store Not Synced", 1024);
205
0
                        break;
206
0
                case 0x00010000:
207
0
                        (void) g_strlcat(flags_str, "Admin Last Modified", 1024);
208
0
                        break;
209
0
                case 0x00020000:
210
0
                        (void) g_strlcat(flags_str, "EP Password Present", 1024);
211
0
                        break;
212
0
                case 0x00040000:
213
0
                        (void) g_strlcat(flags_str, "EP Master Password Present", 1024);
214
0
                        break;
215
0
                case 0x00080000:
216
0
                        (void) g_strlcat(flags_str, "MP Disabled", 1024);
217
0
                        break;
218
0
                case 0x00100000:
219
0
                        (void) g_strlcat(flags_str, "Not Defined", 1024);
220
0
                        break;
221
0
                case 0x00200000:
222
0
                        (void) g_strlcat(flags_str, "Not Defined", 1024);
223
0
                        break;
224
0
                case 0x00400000:
225
0
                        (void) g_strlcat(flags_str, "Not Defined", 1024);
226
0
                        break;
227
0
                case 0x00800000:
228
0
                        (void) g_strlcat(flags_str, "Not Defined", 1024);
229
0
                        break;
230
0
                case 0x01000000:
231
0
                        (void) g_strlcat(flags_str, "Not Defined", 1024);
232
0
                        break;
233
0
                case 0x02000000:
234
0
                        (void) g_strlcat(flags_str, "Not Defined", 1024);
235
0
                        break;
236
0
                case 0x04000000:
237
0
                        (void) g_strlcat(flags_str, "Not Defined", 1024);
238
0
                        break;
239
0
                case 0x08000000:
240
0
                        (void) g_strlcat(flags_str, "Not Defined", 1024);
241
0
                        break;
242
0
                case 0x10000000:
243
0
                        (void) g_strlcat(flags_str, "Not Defined", 1024);
244
0
                        break;
245
0
                case 0x20000000:
246
0
                        (void) g_strlcat(flags_str, "Not Defined", 1024);
247
0
                        break;
248
0
                case 0x40000000:
249
0
                        (void) g_strlcat(flags_str, "Not Defined", 1024);
250
0
                        break;
251
0
                case 0x80000000:
252
0
                        (void) g_strlcat(flags_str, "Not Defined", 1024);
253
0
                        break;
254
0
                default:
255
0
                        break;
256
0
            }
257
0
            sep = ", ";
258
0
        }
259
0
            bvalue = bvalue*2;
260
0
    }
261
262
0
    tinew = proto_tree_add_uint(sss_tree, hf_sss_flags, tvb, foffset, 4, flags);
263
0
    flags_tree = proto_item_add_subtree(tinew, ett_nds);
264
265
0
    bvalue = 0x00000001;
266
267
0
    for (i = 0 ; i < 256; i++ ) {
268
0
        if (flags & bvalue) {
269
0
            switch(bvalue) {
270
0
                case 0x00000001:
271
0
                        proto_tree_add_item(flags_tree, hf_sss_bit1, tvb, foffset, 4, ENC_BIG_ENDIAN);
272
0
                        break;
273
0
                case 0x00000002:
274
0
                    proto_tree_add_item(flags_tree, hf_sss_bit2, tvb, foffset, 4, ENC_BIG_ENDIAN);
275
0
                        break;
276
0
                case 0x00000004:
277
0
                    proto_tree_add_item(flags_tree, hf_sss_bit3, tvb, foffset, 4, ENC_BIG_ENDIAN);
278
0
                        break;
279
0
                case 0x00000008:
280
0
                        proto_tree_add_item(flags_tree, hf_sss_bit4, tvb, foffset, 4, ENC_BIG_ENDIAN);
281
0
                        break;
282
0
                case 0x00000010:
283
0
                        proto_tree_add_item(flags_tree, hf_sss_bit5, tvb, foffset, 4, ENC_BIG_ENDIAN);
284
0
                        break;
285
0
                case 0x00000020:
286
0
                        proto_tree_add_item(flags_tree, hf_sss_bit6, tvb, foffset, 4, ENC_BIG_ENDIAN);
287
0
                        break;
288
0
                case 0x00000040:
289
0
                        proto_tree_add_item(flags_tree, hf_sss_bit7, tvb, foffset, 4, ENC_BIG_ENDIAN);
290
0
                        break;
291
0
                case 0x00000080:
292
0
                        proto_tree_add_item(flags_tree, hf_sss_bit8, tvb, foffset, 4, ENC_BIG_ENDIAN);
293
0
                        break;
294
0
                case 0x00000100:
295
0
                        proto_tree_add_item(flags_tree, hf_sss_bit9, tvb, foffset, 4, ENC_BIG_ENDIAN);
296
0
                        break;
297
0
                case 0x00000200:
298
0
                        proto_tree_add_item(flags_tree, hf_sss_bit10, tvb, foffset, 4, ENC_BIG_ENDIAN);
299
0
                        break;
300
0
                case 0x00000400:
301
0
                        proto_tree_add_item(flags_tree, hf_sss_bit11, tvb, foffset, 4, ENC_BIG_ENDIAN);
302
0
                        break;
303
0
                case 0x00000800:
304
0
                        proto_tree_add_item(flags_tree, hf_sss_bit12, tvb, foffset, 4, ENC_BIG_ENDIAN);
305
0
                        break;
306
0
                case 0x00001000:
307
0
                        proto_tree_add_item(flags_tree, hf_sss_bit13, tvb, foffset, 4, ENC_BIG_ENDIAN);
308
0
                        break;
309
0
                case 0x00002000:
310
0
                        proto_tree_add_item(flags_tree, hf_sss_bit14, tvb, foffset, 4, ENC_BIG_ENDIAN);
311
0
                        break;
312
0
                case 0x00004000:
313
0
                        proto_tree_add_item(flags_tree, hf_sss_bit15, tvb, foffset, 4, ENC_BIG_ENDIAN);
314
0
                        break;
315
0
                case 0x00008000:
316
0
                        proto_tree_add_item(flags_tree, hf_sss_bit16, tvb, foffset, 4, ENC_BIG_ENDIAN);
317
0
                        break;
318
0
                case 0x00010000:
319
0
                        proto_tree_add_item(flags_tree, hf_sss_bit17, tvb, foffset, 4, ENC_BIG_ENDIAN);
320
0
                        break;
321
0
                case 0x00020000:
322
0
                        proto_tree_add_item(flags_tree, hf_sss_bit18, tvb, foffset, 4, ENC_BIG_ENDIAN);
323
0
                        break;
324
0
                case 0x00040000:
325
0
                        proto_tree_add_item(flags_tree, hf_sss_bit19, tvb, foffset, 4, ENC_BIG_ENDIAN);
326
0
                        break;
327
0
                case 0x00080000:
328
0
                        proto_tree_add_item(flags_tree, hf_sss_bit20, tvb, foffset, 4, ENC_BIG_ENDIAN);
329
0
                        break;
330
0
                case 0x00100000:
331
0
                        proto_tree_add_item(flags_tree, hf_sss_bit21, tvb, foffset, 4, ENC_BIG_ENDIAN);
332
0
                        break;
333
0
                case 0x00200000:
334
0
                        proto_tree_add_item(flags_tree, hf_sss_bit22, tvb, foffset, 4, ENC_BIG_ENDIAN);
335
0
                        break;
336
0
                case 0x00400000:
337
0
                        proto_tree_add_item(flags_tree, hf_sss_bit23, tvb, foffset, 4, ENC_BIG_ENDIAN);
338
0
                        break;
339
0
                case 0x00800000:
340
0
                        proto_tree_add_item(flags_tree, hf_sss_bit24, tvb, foffset, 4, ENC_BIG_ENDIAN);
341
0
                        break;
342
0
                case 0x01000000:
343
0
                        proto_tree_add_item(flags_tree, hf_sss_bit25, tvb, foffset, 4, ENC_BIG_ENDIAN);
344
0
                        break;
345
0
                case 0x02000000:
346
0
                        proto_tree_add_item(flags_tree, hf_sss_bit26, tvb, foffset, 4, ENC_BIG_ENDIAN);
347
0
                        break;
348
0
                case 0x04000000:
349
0
                        proto_tree_add_item(flags_tree, hf_sss_bit27, tvb, foffset, 4, ENC_BIG_ENDIAN);
350
0
                        break;
351
0
                case 0x08000000:
352
0
                        proto_tree_add_item(flags_tree, hf_sss_bit28, tvb, foffset, 4, ENC_BIG_ENDIAN);
353
0
                        break;
354
0
                case 0x10000000:
355
0
                        proto_tree_add_item(flags_tree, hf_sss_bit29, tvb, foffset, 4, ENC_BIG_ENDIAN);
356
0
                        break;
357
0
                case 0x20000000:
358
0
                        proto_tree_add_item(flags_tree, hf_sss_bit30, tvb, foffset, 4, ENC_BIG_ENDIAN);
359
0
                        break;
360
0
                case 0x40000000:
361
0
                        proto_tree_add_item(flags_tree, hf_sss_bit31, tvb, foffset, 4, ENC_BIG_ENDIAN);
362
0
                        break;
363
0
                case 0x80000000:
364
0
                        proto_tree_add_item(flags_tree, hf_sss_bit32, tvb, foffset, 4, ENC_BIG_ENDIAN);
365
0
                        break;
366
0
                default:
367
0
                        break;
368
0
            }
369
0
        }
370
0
        bvalue = bvalue*2;
371
0
    }
372
0
    return;
373
0
}
374
375
/* Find the delimiter, '*'.
376
 * Returns the number of bytes from foffset to the delimiter or 0 if not
377
 * found within 256 bytes from foffset */
378
static int
379
find_delimiter(tvbuff_t *tvb, int foffset)
380
0
{
381
0
    int offset;
382
383
0
    offset = tvb_find_uint8(tvb, foffset, 256, '*');
384
0
    if (offset >= foffset) {
385
0
        return offset - foffset;
386
0
    }
387
0
    return 0;
388
0
}
389
390
static int
391
sss_string(tvbuff_t* tvb, int hfinfo, proto_tree *sss_tree, int offset, bool little, uint32_t length)
392
0
{
393
0
    int     foffset = offset;
394
0
    uint32_t str_length;
395
0
    char    buffer[1024];
396
0
    size_t  i = 0;
397
0
    uint8_t c_char;
398
0
    int length_remaining;
399
400
0
    if (length==0) {
401
0
        if (little) {
402
0
            str_length = tvb_get_letohl(tvb, foffset);
403
0
        } else {
404
0
            str_length = tvb_get_ntohl(tvb, foffset);
405
0
        }
406
0
        foffset += 4;
407
0
    } else {
408
0
        str_length = length;
409
0
    }
410
0
    length_remaining = tvb_captured_length_remaining(tvb, foffset);
411
0
    if (length_remaining <= 0) {
412
0
        return foffset;
413
0
    }
414
0
    if (str_length > (unsigned)length_remaining || str_length > (sizeof(buffer)-1)) {
415
0
        proto_tree_add_string(sss_tree, hfinfo, tvb, foffset,
416
0
            length_remaining + 4, "<String too long to process>");
417
0
        foffset += length_remaining;
418
0
        return foffset;
419
0
    }
420
0
    if (str_length == 0) {
421
0
        proto_tree_add_string(sss_tree, hfinfo, tvb, offset, 4, "<Not Specified>");
422
0
        return foffset;
423
0
    }
424
0
    while (i < str_length) {
425
0
        c_char = tvb_get_uint8(tvb, foffset);
426
0
        if (g_ascii_isprint(c_char)) {
427
0
            buffer[i++] = c_char;
428
0
        } else {
429
0
            if (c_char) {
430
0
                buffer[i++] = '.';
431
0
            } else {
432
                /* Skip NULL-terminators */
433
0
                str_length--;
434
0
            }
435
0
        }
436
0
        foffset++;
437
0
    }
438
0
    buffer[i] = '\0';
439
440
0
    if (length==0) {
441
0
        if (little) {
442
0
            str_length = tvb_get_letohl(tvb, offset);
443
0
        } else {
444
0
            str_length = tvb_get_ntohl(tvb, offset);
445
0
        }
446
0
        offset += 4;
447
0
    } else {
448
0
        str_length = length;
449
0
    }
450
0
    proto_tree_add_string(sss_tree, hfinfo, tvb, offset, str_length, buffer);
451
0
    return foffset;
452
0
}
453
454
void
455
dissect_sss_request(tvbuff_t *tvb, packet_info *pinfo, proto_tree *ncp_tree, ncp_req_hash_value *request_value)
456
0
{
457
0
    uint8_t             /*func,*/ subfunc = 0;
458
0
    uint32_t            subverb=0;
459
0
    uint32_t            msg_length=0;
460
0
    uint32_t            foffset= 0;
461
0
    proto_tree          *atree;
462
0
    proto_item          *aitem;
463
464
465
0
    if (tvb_reported_length_remaining(tvb, foffset)<4) {
466
0
        return;
467
0
    }
468
0
    foffset = 6;
469
    /*func = tvb_get_uint8(tvb, foffset);*/
470
0
    foffset += 1;
471
0
    subfunc = tvb_get_uint8(tvb, foffset);
472
0
    foffset += 1;
473
474
    /* Fill in the PROTOCOL & INFO  columns. */
475
0
    col_set_str(pinfo->cinfo, COL_PROTOCOL, "NSSS");
476
0
    col_add_fstr(pinfo->cinfo, COL_INFO, "C SecretStore - %s", val_to_str(subfunc, sss_func_enum, "Unknown (%d)"));
477
478
0
    switch (subfunc) {
479
0
    case 1:
480
0
        atree = proto_tree_add_subtree_format(ncp_tree, tvb, foffset, -1, ett_sss, NULL, "Packet Type: %s", val_to_str(subfunc, sss_func_enum, "Unknown (%d)"));
481
0
        proto_tree_add_item(atree, hf_sss_ping_version, tvb, foffset, 4, ENC_LITTLE_ENDIAN);
482
0
        foffset += 4;
483
0
        proto_tree_add_item(atree, hf_sss_flags, tvb, foffset, 4, ENC_LITTLE_ENDIAN);
484
        /*foffset += 4;*/
485
0
        break;
486
0
    case 2:
487
0
        proto_tree_add_item(ncp_tree, hf_sss_frag_handle, tvb, foffset, 4, ENC_LITTLE_ENDIAN);
488
0
        if (tvb_get_letohl(tvb, foffset)==0xffffffff) { /* Fragment handle of -1 means no fragment. So process packet */
489
0
            foffset += 4;
490
0
            proto_tree_add_item(ncp_tree, hf_sss_buffer_size, tvb, foffset, 4, ENC_LITTLE_ENDIAN);
491
0
            foffset += 4;
492
0
            proto_tree_add_item(ncp_tree, hf_sss_length, tvb, foffset, 4, ENC_LITTLE_ENDIAN);
493
0
            foffset += 4;
494
0
            foffset += 12; /* Blank Context */
495
0
            subverb = tvb_get_letohl(tvb, foffset);
496
0
            col_append_fstr(pinfo->cinfo, COL_INFO, ", %s", val_to_str(subverb, sss_verb_enum, "Unknown (%d)"));
497
498
0
            aitem = proto_tree_add_item(ncp_tree, hf_sss_verb, tvb, foffset, 4, ENC_LITTLE_ENDIAN);
499
0
            atree = proto_item_add_subtree(aitem, ett_sss);
500
0
            if (request_value) {
501
0
                request_value->req_nds_flags=subverb;
502
0
            }
503
0
            foffset += 4;
504
0
            process_flags(atree, tvb, foffset);
505
0
            foffset += 4;
506
0
            proto_tree_add_item(atree, hf_sss_context, tvb, foffset, 4, ENC_BIG_ENDIAN);
507
0
            foffset += 4;
508
0
            switch (subverb) {
509
0
            case 0:
510
0
                foffset += 4;
511
0
                /*foffset =*/ sss_string(tvb, hf_sss_user, atree, foffset, true, 0);
512
0
                break;
513
0
            case 1:
514
0
                foffset = sss_string(tvb, hf_sss_secret, atree, foffset, true, 0);
515
0
                msg_length = tvb_get_letohl(tvb, foffset);
516
0
                foffset += (msg_length+4);   /* Unsure of what this length and parameter are */
517
                /* A bad secret of length greater then 256 characters will cause frag
518
                   packets and then we will see these as malformed packets.
519
                   So check to make sure we still have data in the packet anytime
520
                   we read a secret. */
521
0
                if (tvb_reported_length_remaining(tvb, foffset) > 4) {
522
0
                    /*foffset =*/ sss_string(tvb, hf_sss_user, atree, foffset, true, 0);
523
0
                }
524
0
                break;
525
0
            case 2:
526
0
                foffset += 4;
527
0
                foffset = sss_string(tvb, hf_sss_secret, atree, foffset, true, 0);
528
0
                if (tvb_reported_length_remaining(tvb, foffset) > 4) {
529
0
                    msg_length = tvb_get_letohl(tvb, foffset);
530
0
                    foffset += 4;
531
0
                    if (tvb_captured_length_remaining(tvb, foffset) < (int) msg_length) {
532
0
                        proto_tree_add_item(atree, hf_sss_enc_data, tvb, foffset, -1, ENC_NA);
533
0
                    } else {
534
0
                        proto_tree_add_item(atree, hf_sss_enc_data, tvb, foffset, msg_length, ENC_NA);
535
0
                    }
536
0
                }
537
0
                break;
538
0
            case 3:
539
0
            case 4:
540
0
                foffset = sss_string(tvb, hf_sss_secret, atree, foffset, true, 0);
541
0
                if (tvb_reported_length_remaining(tvb, foffset) > 4) {
542
0
                    /*foffset =*/ sss_string(tvb, hf_sss_user, atree, foffset, true, 0);
543
0
                }
544
0
                break;
545
0
            case 5:
546
0
                break;
547
0
            case 6:
548
0
                foffset = sss_string(tvb, hf_sss_secret, atree, foffset, true, 0);
549
0
                if (tvb_reported_length_remaining(tvb, foffset) > 4) {
550
0
                    /*foffset =*/ sss_string(tvb, hf_sss_user, atree, foffset, true, 0);
551
0
                }
552
0
                break;
553
0
            case 7:
554
0
                msg_length = tvb_get_letohl(tvb, foffset);
555
0
                foffset += 4;
556
0
                proto_tree_add_item(atree, hf_sss_enc_cred, tvb, foffset, msg_length, ENC_NA);
557
0
                break;
558
0
            case 8:
559
0
            case 9:
560
0
            default:
561
0
                break;
562
0
            }
563
0
        } else {
564
0
            col_set_str(pinfo->cinfo, COL_INFO, "C SecretStore - fragment");
565
566
            /* Fragments don't really carry a subverb so store 0xff as the subverb number */
567
0
            if (request_value) {
568
0
                request_value->req_nds_flags=255;
569
0
            }
570
0
            if (tvb_reported_length_remaining(tvb, foffset) > 8) {
571
0
                foffset += 4;
572
0
                proto_tree_add_item(ncp_tree, hf_sss_enc_data, tvb, foffset, -1, ENC_NA);
573
0
            }
574
0
        }
575
0
        break;
576
0
    case 3:
577
        /* No Op */
578
0
        break;
579
0
    default:
580
0
        break;
581
0
    }
582
0
}
583
584
void
585
dissect_sss_reply(tvbuff_t *tvb, packet_info *pinfo, proto_tree *ncp_tree, uint8_t subfunc, ncp_req_hash_value *request_value)
586
0
{
587
0
    uint32_t            foffset=0;
588
0
    uint32_t            subverb=0;
589
0
    uint32_t            msg_length=0;
590
0
    uint32_t            return_code=0;
591
0
    uint32_t            number_of_items=0;
592
0
    int32_t             length_of_string=0;
593
0
    uint32_t            i = 0;
594
0
    const char          *str;
595
596
0
    proto_tree          *atree;
597
0
    proto_item          *expert_item;
598
599
0
    foffset = 8;
600
0
    col_set_str(pinfo->cinfo, COL_PROTOCOL, "NSSS");
601
0
    if (tvb_captured_length_remaining(tvb, foffset)<4) {
602
0
        return;
603
0
    }
604
0
    atree = proto_tree_add_subtree_format(ncp_tree, tvb, foffset, -1, ett_sss, NULL, "Function: %s", val_to_str_const(subfunc, sss_func_enum, "Unknown"));
605
0
    switch (subfunc) {
606
0
    case 1:
607
0
        proto_tree_add_item(atree, hf_sss_flags, tvb, foffset, 4, ENC_LITTLE_ENDIAN);
608
0
        foffset += 4;
609
0
        proto_tree_add_item(atree, hf_sss_sss_version, tvb, foffset, 4, ENC_LITTLE_ENDIAN);
610
        /*foffset += 4;*/
611
0
        break;
612
0
    case 2:
613
0
        if (request_value) {
614
0
            subverb = request_value->req_nds_flags;
615
0
            str = try_val_to_str(subverb, sss_verb_enum);
616
0
            if (str) {
617
0
                proto_tree_add_uint(atree, hf_sss_verb, tvb, foffset, -1, subverb);
618
0
            }
619
0
        }
620
0
        proto_tree_add_item(atree, hf_sss_length, tvb, foffset, 4, ENC_LITTLE_ENDIAN);
621
0
        msg_length = tvb_get_letohl(tvb, foffset);
622
0
        foffset += 4;
623
0
        proto_tree_add_item(atree, hf_sss_frag_handle, tvb, foffset, 4, ENC_LITTLE_ENDIAN);
624
0
        foffset += 4;
625
0
        msg_length -= 4;
626
0
        if ((tvb_get_letohl(tvb, foffset-4)==0xffffffff) && (msg_length > 4)) {
627
0
            foffset += 4;
628
0
            return_code = tvb_get_letohl(tvb, foffset);
629
0
            str = try_val_to_str(return_code, sss_errors_enum);
630
0
            if (str) {
631
0
                expert_item = proto_tree_add_item(atree, hf_sss_return_code, tvb, foffset, 4, ENC_LITTLE_ENDIAN);
632
0
                expert_add_info_format(pinfo, expert_item, &ei_return_code, "SSS Error: %s", str);
633
0
                col_add_fstr(pinfo->cinfo, COL_INFO, "R Error - %s", val_to_str(return_code, sss_errors_enum, "Unknown (%d)"));
634
                /*foffset+=4;*/
635
0
            } else {
636
0
                proto_tree_add_uint_format_value(atree, hf_sss_return_code, tvb, foffset, 4, 0, "Success (0x00000000)");
637
0
                if (tvb_reported_length_remaining(tvb, foffset) > 8) {
638
0
                    foffset += 4;
639
0
                    if (request_value && subverb == 6) {
640
0
                        foffset += 4;
641
0
                        number_of_items = tvb_get_letohl(tvb, foffset);
642
0
                        foffset += 8;
643
0
                        for (i=0; i<number_of_items; i++) {
644
0
                            length_of_string = find_delimiter(tvb, foffset);
645
0
                            if (length_of_string > tvb_reported_length_remaining(tvb, foffset)) {
646
0
                                return;
647
0
                            }
648
0
                            foffset = sss_string(tvb, hf_sss_secret, atree, foffset, true, length_of_string);
649
0
                            if (tvb_reported_length_remaining(tvb, foffset) < 8) {
650
0
                                return;
651
0
                            }
652
0
                            foffset++;
653
0
                        }
654
0
                    } else {
655
0
                        proto_tree_add_item(atree, hf_sss_enc_data, tvb, foffset, tvb_captured_length_remaining(tvb, foffset), ENC_NA);
656
0
                    }
657
0
                }
658
0
            }
659
0
        } else {
660
0
            proto_tree_add_uint_format_value(atree, hf_sss_return_code, tvb, foffset, 4, 0, "Success (0x00000000)");
661
0
            if (tvb_reported_length_remaining(tvb, foffset) > 8) {
662
0
                foffset += 4;
663
0
                proto_tree_add_item(atree, hf_sss_enc_data, tvb, foffset, tvb_captured_length_remaining(tvb, foffset), ENC_NA);
664
0
            }
665
0
        }
666
0
        break;
667
0
    case 3:
668
0
        break;
669
0
    default:
670
0
        break;
671
0
    }
672
0
}
673
674
void
675
proto_register_sss(void)
676
14
{
677
14
    static hf_register_info hf_sss[] = {
678
14
        { &hf_sss_buffer_size,
679
14
        { "Buffer Size", "sss.buffer", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
680
681
14
        { &hf_sss_ping_version,
682
14
        { "Ping Version", "sss.ping_version", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }},
683
684
14
        { &hf_sss_flags,
685
14
        { "Flags", "sss.flags", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }},
686
687
14
        { &hf_sss_context,
688
14
        { "Context", "sss.context", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }},
689
690
14
        { &hf_sss_frag_handle,
691
14
        { "Fragment Handle", "sss.frag_handle", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }},
692
693
14
        { &hf_sss_length,
694
14
        { "Length", "sss.length", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
695
696
14
        { &hf_sss_verb,
697
14
        { "Verb", "sss.verb", FT_UINT32, BASE_HEX,   VALS(sss_verb_enum), 0x0, NULL, HFILL }},
698
699
14
        { &hf_sss_user,
700
14
        { "User",  "sss.user", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
701
702
14
        { &hf_sss_secret,
703
14
        { "Secret ID", "sss.secret", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
704
705
14
        { &hf_sss_sss_version,
706
14
        { "SecretStore Protocol Version", "sss.version", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }},
707
708
14
        { &hf_sss_return_code,
709
14
        { "Return Code", "sss.return_code", FT_UINT32, BASE_HEX, VALS(sss_errors_enum), 0x0, NULL, HFILL }},
710
711
14
        { &hf_sss_enc_cred,
712
14
        { "Encrypted Credential", "sss.enc_cred", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
713
714
14
        { &hf_sss_enc_data,
715
14
        { "Encrypted Data", "sss.enc_data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
716
717
14
        { &hf_sss_bit1,
718
14
        { "Enhanced Protection", "sss.bit1", FT_BOOLEAN, 32, NULL, 0x00000001, NULL, HFILL }},
719
720
14
        { &hf_sss_bit2,
721
14
        { "Create ID", "sss.bit2", FT_BOOLEAN, 32, NULL, 0x00000002, NULL, HFILL }},
722
723
14
        { &hf_sss_bit3,
724
14
        { "Remove Lock", "sss.bit3", FT_BOOLEAN, 32, NULL, 0x00000004, NULL, HFILL }},
725
726
14
        { &hf_sss_bit4,
727
14
        { "Repair", "sss.bit4", FT_BOOLEAN, 32, NULL, 0x00000008, NULL, HFILL }},
728
729
14
        { &hf_sss_bit5,
730
14
        { "Unicode", "sss.bit5", FT_BOOLEAN, 32, NULL, 0x00000010, NULL, HFILL }},
731
732
14
        { &hf_sss_bit6,
733
14
        { "EP Master Password Used", "sss.bit6", FT_BOOLEAN, 32, NULL, 0x00000020, NULL, HFILL }},
734
735
14
        { &hf_sss_bit7,
736
14
        { "EP Password Used", "sss.bit7", FT_BOOLEAN, 32, NULL, 0x00000040, NULL, HFILL }},
737
738
14
        { &hf_sss_bit8,
739
14
        { "Set Tree Name", "sss.bit8", FT_BOOLEAN, 32, NULL, 0x00000080, NULL, HFILL }},
740
741
14
        { &hf_sss_bit9,
742
14
        { "Get Context", "sss.bit9", FT_BOOLEAN, 32, NULL, 0x00000100, NULL, HFILL }},
743
744
14
        { &hf_sss_bit10,
745
14
        { "Destroy Context", "sss.bit10", FT_BOOLEAN, 32, NULL, 0x00000200, NULL, HFILL }},
746
747
14
        { &hf_sss_bit11,
748
14
        { "Not Defined", "sss.bit11", FT_BOOLEAN, 32, NULL, 0x00000400, NULL, HFILL }},
749
750
14
        { &hf_sss_bit12,
751
14
        { "Not Defined", "sss.bit12", FT_BOOLEAN, 32, NULL, 0x00000800, NULL, HFILL }},
752
753
14
        { &hf_sss_bit13,
754
14
        { "Not Defined", "sss.bit13", FT_BOOLEAN, 32, NULL, 0x00001000, NULL, HFILL }},
755
756
14
        { &hf_sss_bit14,
757
14
        { "Not Defined", "sss.bit14", FT_BOOLEAN, 32, NULL, 0x00002000, NULL, HFILL }},
758
759
14
        { &hf_sss_bit15,
760
14
        { "Not Defined", "sss.bit15", FT_BOOLEAN, 32, NULL, 0x00004000, NULL, HFILL }},
761
762
14
        { &hf_sss_bit16,
763
14
        { "Not Defined", "sss.bit16", FT_BOOLEAN, 32, NULL, 0x00008000, NULL, HFILL }},
764
765
14
        { &hf_sss_bit17,
766
14
        { "EP Lock", "sss.bit17", FT_BOOLEAN, 32, NULL, 0x00010000, NULL, HFILL }},
767
768
14
        { &hf_sss_bit18,
769
14
        { "Not Initialized", "sss.bit18", FT_BOOLEAN, 32, NULL, 0x00020000, NULL, HFILL }},
770
771
14
        { &hf_sss_bit19,
772
14
        { "Enhanced Protection", "sss.bit19", FT_BOOLEAN, 32, NULL, 0x00040000, NULL, HFILL }},
773
774
14
        { &hf_sss_bit20,
775
14
        { "Store Not Synced", "sss.bit20", FT_BOOLEAN, 32, NULL, 0x00080000, NULL, HFILL }},
776
777
14
        { &hf_sss_bit21,
778
14
        { "Admin Last Modified", "sss.bit21", FT_BOOLEAN, 32, NULL, 0x00100000, NULL, HFILL }},
779
780
14
        { &hf_sss_bit22,
781
14
        { "EP Password Present", "sss.bit22", FT_BOOLEAN, 32, NULL, 0x00200000, NULL, HFILL }},
782
783
14
        { &hf_sss_bit23,
784
14
        { "EP Master Password Present", "sss.bit23", FT_BOOLEAN, 32, NULL, 0x00400000, NULL, HFILL }},
785
786
14
        { &hf_sss_bit24,
787
14
        { "MP Disabled", "sss.bit24", FT_BOOLEAN, 32, NULL, 0x00800000, NULL, HFILL }},
788
789
14
        { &hf_sss_bit25,
790
14
        { "Not Defined", "sss.bit25", FT_BOOLEAN, 32, NULL, 0x01000000, NULL, HFILL }},
791
792
14
        { &hf_sss_bit26,
793
14
        { "Not Defined", "sss.bit26", FT_BOOLEAN, 32, NULL, 0x02000000, NULL, HFILL }},
794
795
14
        { &hf_sss_bit27,
796
14
        { "Not Defined", "sss.bit27", FT_BOOLEAN, 32, NULL, 0x04000000, NULL, HFILL }},
797
798
14
        { &hf_sss_bit28,
799
14
        { "Not Defined", "sss.bit28", FT_BOOLEAN, 32, NULL, 0x08000000, NULL, HFILL }},
800
801
14
        { &hf_sss_bit29,
802
14
        { "Not Defined", "sss.bit29", FT_BOOLEAN, 32, NULL, 0x10000000, NULL, HFILL }},
803
804
14
        { &hf_sss_bit30,
805
14
        { "Not Defined", "sss.bit30", FT_BOOLEAN, 32, NULL, 0x20000000, NULL, HFILL }},
806
807
14
        { &hf_sss_bit31,
808
14
        { "Not Defined", "sss.bit31", FT_BOOLEAN, 32, NULL, 0x40000000, NULL, HFILL }},
809
810
14
        { &hf_sss_bit32,
811
14
        { "Not Defined", "sss.bit32", FT_BOOLEAN, 32, NULL, 0x80000000, NULL, HFILL }}
812
14
    };
813
814
14
    static int *ett[] = {
815
14
        &ett_sss
816
14
    };
817
818
14
    static ei_register_info ei[] = {
819
14
        { &ei_return_code, { "sss.return_code.expert", PI_RESPONSE_CODE, PI_NOTE, "SSS Error", EXPFILL }}
820
14
    };
821
822
14
    expert_module_t* expert_sss;
823
    /*module_t *sss_module;*/
824
825
14
    proto_sss = proto_register_protocol("Novell SecretStore Services", "SSS", "sss");
826
14
    proto_register_field_array(proto_sss, hf_sss, array_length(hf_sss));
827
14
    proto_register_subtree_array(ett, array_length(ett));
828
14
    expert_sss = expert_register_protocol(proto_sss);
829
14
    expert_register_field_array(expert_sss, ei, array_length(ei));
830
14
}
831
832
/*
833
 * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
834
 *
835
 * Local variables:
836
 * c-basic-offset: 4
837
 * tab-width: 8
838
 * indent-tabs-mode: nil
839
 * End:
840
 *
841
 * vi: set shiftwidth=4 tabstop=8 expandtab:
842
 * :indentSize=4:tabSize=8:noTabs=true:
843
 */
844