1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
|
/*
Unix SMB/CIFS implementation.
SMB torture tester - mangling test
Copyright (C) Andrew Tridgell 2002
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
extern int torture_numops;
static TDB_CONTEXT *tdb;
#define NAME_LENGTH 20
static unsigned total, collisions, failures;
static bool test_one(struct cli_state *cli, const char *name)
{
int fnum;
fstring shortname;
fstring name2;
NTSTATUS status;
TDB_DATA data;
total++;
fnum = cli_open(cli, name, O_RDWR|O_CREAT|O_EXCL, DENY_NONE);
if (fnum == -1) {
printf("open of %s failed (%s)\n", name, cli_errstr(cli));
return False;
}
if (!cli_close(cli, fnum)) {
printf("close of %s failed (%s)\n", name, cli_errstr(cli));
return False;
}
/* get the short name */
status = cli_qpathinfo_alt_name(cli, name, shortname);
if (!NT_STATUS_IS_OK(status)) {
printf("query altname of %s failed (%s)\n", name, cli_errstr(cli));
return False;
}
fstr_sprintf(name2, "\\mangle_test\\%s", shortname);
if (!NT_STATUS_IS_OK(cli_unlink(cli, name2, aSYSTEM | aHIDDEN))) {
printf("unlink of %s (%s) failed (%s)\n",
name2, name, cli_errstr(cli));
return False;
}
/* recreate by short name */
fnum = cli_open(cli, name2, O_RDWR|O_CREAT|O_EXCL, DENY_NONE);
if (fnum == -1) {
printf("open2 of %s failed (%s)\n", name2, cli_errstr(cli));
return False;
}
if (!cli_close(cli, fnum)) {
printf("close of %s failed (%s)\n", name, cli_errstr(cli));
return False;
}
/* and unlink by long name */
if (!NT_STATUS_IS_OK(cli_unlink(cli, name, aSYSTEM | aHIDDEN))) {
printf("unlink2 of %s (%s) failed (%s)\n",
name, name2, cli_errstr(cli));
failures++;
cli_unlink(cli, name2, aSYSTEM | aHIDDEN);
return True;
}
/* see if the short name is already in the tdb */
data = tdb_fetch_bystring(tdb, shortname);
if (data.dptr) {
/* maybe its a duplicate long name? */
if (!strequal(name, (const char *)data.dptr)) {
/* we have a collision */
collisions++;
printf("Collision between %s and %s -> %s "
" (coll/tot: %u/%u)\n",
name, data.dptr, shortname, collisions, total);
}
free(data.dptr);
} else {
TDB_DATA namedata;
/* store it for later */
namedata.dptr = CONST_DISCARD(uint8 *, name);
namedata.dsize = strlen(name)+1;
tdb_store_bystring(tdb, shortname, namedata, TDB_REPLACE);
}
return True;
}
static void gen_name(char *name)
{
const char *chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz._-$~... ";
unsigned max_idx = strlen(chars);
unsigned len;
int i;
char *p;
fstrcpy(name, "\\mangle_test\\");
p = name + strlen(name);
len = 1 + random() % NAME_LENGTH;
for (i=0;i<len;i++) {
p[i] = chars[random() % max_idx];
}
p[i] = 0;
if (strcmp(p, ".") == 0 || strcmp(p, "..") == 0) {
p[0] = '_';
}
/* have a high probability of a common lead char */
if (random() % 2 == 0) {
p[0] = 'A';
}
/* and a medium probability of a common lead string */
if (random() % 10 == 0) {
if (strlen(p) <= 5) {
fstrcpy(p, "ABCDE");
} else {
/* try not to kill off the null termination */
memcpy(p, "ABCDE", 5);
}
}
/* and a high probability of a good extension length */
if (random() % 2 == 0) {
char *s = strrchr(p, '.');
if (s) {
s[4] = 0;
}
}
/* ..... and a 100% proability of a file not ending in "." */
if (p[strlen(p)-1] == '.')
p[strlen(p)-1] = '_';
}
bool torture_mangle(int dummy)
{
static struct cli_state *cli;
int i;
bool ret = True;
printf("starting mangle test\n");
if (!torture_open_connection(&cli, 0)) {
return False;
}
/* we will use an internal tdb to store the names we have used */
tdb = tdb_open(NULL, 100000, TDB_INTERNAL, 0, 0);
if (!tdb) {
printf("ERROR: Failed to open tdb\n");
return False;
}
cli_unlink(cli, "\\mangle_test\\*", aSYSTEM | aHIDDEN);
cli_rmdir(cli, "\\mangle_test");
if (!NT_STATUS_IS_OK(cli_mkdir(cli, "\\mangle_test"))) {
printf("ERROR: Failed to make directory\n");
return False;
}
for (i=0;i<torture_numops;i++) {
fstring name;
ZERO_STRUCT(name);
gen_name(name);
if (!test_one(cli, name)) {
ret = False;
break;
}
if (total && total % 100 == 0) {
printf("collisions %u/%u - %.2f%% (%u failures)\r",
collisions, total, (100.0*collisions) / total, failures);
}
}
cli_unlink(cli, "\\mangle_test\\*", aSYSTEM | aHIDDEN);
if (!NT_STATUS_IS_OK(cli_rmdir(cli, "\\mangle_test"))) {
printf("ERROR: Failed to remove directory\n");
return False;
}
printf("\nTotal collisions %u/%u - %.2f%% (%u failures)\n",
collisions, total, (100.0*collisions) / total, failures);
torture_close_connection(cli);
printf("mangle test finished\n");
return (ret && (failures == 0));
}
|
