summaryrefslogtreecommitdiff
path: root/source3/torture/test_cleanup.c
blob: a831ed74a7f44c12332274657711bfaa2321a2be (plain)
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
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
/*
   Unix SMB/CIFS implementation.
   Test cleanup behaviour
   Copyright (C) Volker Lendecke 2011

   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"
#include "locking/proto.h"
#include "torture/proto.h"
#include "system/filesys.h"
#include "system/select.h"
#include "libsmb/libsmb.h"
#include "libcli/smb/smbXcli_base.h"
#include "libcli/security/security.h"
#include "librpc/gen_ndr/open_files.h"

bool run_cleanup1(int dummy)
{
	struct cli_state *cli;
	const char *fname = "\\cleanup1";
	uint16_t fnum;
	NTSTATUS status;

	printf("CLEANUP1: Checking that a conflicting share mode is cleaned "
	       "up\n");

	if (!torture_open_connection(&cli, 0)) {
		return false;
	}
	status = cli_openx(cli, fname, O_RDWR|O_CREAT, DENY_ALL, &fnum);
	if (!NT_STATUS_IS_OK(status)) {
		printf("open of %s failed (%s)\n", fname, nt_errstr(status));
		return false;
	}
	status = smbXcli_conn_samba_suicide(cli->conn, 1);
	if (!NT_STATUS_IS_OK(status)) {
		printf("smbXcli_conn_samba_suicide failed: %s\n",
		       nt_errstr(status));
		return false;
	}

	if (!torture_open_connection(&cli, 1)) {
		return false;
	}
	status = cli_ntcreate(
		cli, fname, 0,
		FILE_GENERIC_READ|FILE_GENERIC_WRITE|DELETE_ACCESS,
		FILE_ATTRIBUTE_NORMAL,
		FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
		FILE_OPEN, FILE_DELETE_ON_CLOSE, 0, &fnum, NULL);
	if (!NT_STATUS_IS_OK(status)) {
		printf("2nd open of %s failed (%s)\n", fname,
		       nt_errstr(status));
		return false;
	}
	cli_close(cli, fnum);

	torture_close_connection(cli);
	return NT_STATUS_IS_OK(status);
}

bool run_cleanup2(int dummy)
{
	struct cli_state *cli1, *cli2;
	const char *fname = "\\cleanup2";
	uint16_t fnum1, fnum2;
	NTSTATUS status;
	char buf;

	printf("CLEANUP2: Checking that a conflicting brlock is cleaned up\n");

	if (!torture_open_connection(&cli1, 0)) {
		return false;
	}
	status = cli_ntcreate(
		cli1, fname, 0, FILE_GENERIC_READ|FILE_GENERIC_WRITE,
		FILE_ATTRIBUTE_NORMAL,
		FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
		FILE_OVERWRITE_IF, 0, 0, &fnum1, NULL);
	if (!NT_STATUS_IS_OK(status)) {
		printf("open of %s failed (%s)\n", fname, nt_errstr(status));
		return false;
	}
	status = cli_lock32(cli1, fnum1, 0, 1, 0, WRITE_LOCK);
	if (!NT_STATUS_IS_OK(status)) {
		printf("lock failed (%s)\n", nt_errstr(status));
		return false;
	}

	/*
	 * Check the file is indeed locked
	 */
	if (!torture_open_connection(&cli2, 0)) {
		return false;
	}
	status = cli_ntcreate(
		cli2, fname, 0, FILE_GENERIC_READ|FILE_GENERIC_WRITE,
		FILE_ATTRIBUTE_NORMAL,
		FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
		FILE_OPEN, 0, 0, &fnum2, NULL);
	if (!NT_STATUS_IS_OK(status)) {
		printf("open of %s failed (%s)\n", fname, nt_errstr(status));
		return false;
	}
	buf = 'x';
	status = cli_smbwrite(cli2, fnum2, &buf, 0, 1, NULL);
	if (!NT_STATUS_EQUAL(status, NT_STATUS_FILE_LOCK_CONFLICT)) {
		printf("write succeeded\n");
		return false;
	}

	/*
	 * Kill the lock holder
	 */
	status = smbXcli_conn_samba_suicide(cli1->conn, 1);
	if (!NT_STATUS_IS_OK(status)) {
		printf("smbXcli_conn_samba_suicide failed: %s\n",
		       nt_errstr(status));
		return false;
	}

	/*
	 * Right now we don't clean up immediately. Re-open the 2nd connection.
	 */
#if 1
	cli_shutdown(cli2);
	if (!torture_open_connection(&cli2, 0)) {
		return false;
	}
	status = cli_ntcreate(
		cli2, fname, 0, FILE_GENERIC_READ|FILE_GENERIC_WRITE,
		FILE_ATTRIBUTE_NORMAL,
		FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
		FILE_OPEN, 0, 0, &fnum2, NULL);
	if (!NT_STATUS_IS_OK(status)) {
		printf("open of %s failed (%s)\n", fname, nt_errstr(status));
		return false;
	}
#endif
	status = cli_smbwrite(cli2, fnum2, &buf, 0, 1, NULL);
	if (!NT_STATUS_IS_OK(status)) {
		printf("write failed: %s\n", nt_errstr(status));
		return false;
	}
	return true;
}

static bool create_stale_share_mode_entry(const char *fname,
					  struct file_id *p_id)
{
	struct cli_state *cli;
	uint16_t fnum;
	NTSTATUS status;
	SMB_STRUCT_STAT sbuf;
	struct file_id id;

	if (!torture_open_connection(&cli, 0)) {
		return false;
	}

	status = torture_setup_unix_extensions(cli);
	if (!NT_STATUS_IS_OK(status)) {
		printf("torture_setup_unix_extensions failed: %s\n",
		       nt_errstr(status));
		return false;
	}
	status = cli_openx(cli, fname, O_RDWR|O_CREAT, DENY_ALL, &fnum);
	if (!NT_STATUS_IS_OK(status)) {
		printf("open of %s failed (%s)\n", fname, nt_errstr(status));
		return false;
	}
	status = cli_posix_stat(cli, fname, &sbuf);
	if (!NT_STATUS_IS_OK(status)) {
		printf("cli_posix_stat failed: %s\n", nt_errstr(status));
		return false;
	}
	status = smbXcli_conn_samba_suicide(cli->conn, 1);
	if (!NT_STATUS_IS_OK(status)) {
		printf("smbXcli_conn_samba_suicide failed: %s\n",
		       nt_errstr(status));
		return false;
	}

	id.devid = sbuf.st_ex_rdev;
	id.inode = sbuf.st_ex_ino;
	id.extid = 0;

	poll(NULL, 0, 1000);

	*p_id = id;
	return true;
}

static bool corrupt_dummy(struct share_mode_data *d)
{
	return true;
}

static bool invalidate_sharemode(struct share_mode_data *d)
{
	d->share_modes[0].op_type =
		OPLOCK_EXCLUSIVE|OPLOCK_BATCH|OPLOCK_LEVEL_II;
	d->modified = true;
	return true;
}

static bool duplicate_entry(struct share_mode_data *d, int i)
{
	struct share_mode_entry *tmp;

	if (i >= d->num_share_modes) {
		return false;
	}

	tmp = talloc_realloc(d, d->share_modes, struct share_mode_entry,
			     d->num_share_modes + 1);
	if (tmp == NULL) {
		return false;
	}
	d->share_modes = tmp;
	d->num_share_modes += 1;
	d->share_modes[d->num_share_modes-1] = d->share_modes[i];
	d->modified = true;
	return true;
}

static bool create_duplicate_batch(struct share_mode_data *d)
{
	if (d->num_share_modes != 1) {
		return false;
	}
	d->share_modes[0].op_type = OPLOCK_BATCH;
	if (!duplicate_entry(d, 0)) {
		return false;
	}
	return true;
}

struct corruption_fns {
	bool (*fn)(struct share_mode_data *d);
	const char *descr;
};

bool run_cleanup3(int dummy)
{
	struct cli_state *cli;
	const char *fname = "cleanup3";
	uint16_t fnum;
	NTSTATUS status;
	struct share_mode_lock *lck;
	struct file_id id;
	size_t i;

	struct corruption_fns fns[] = {
		{ corrupt_dummy, "no corruption" },
		{ invalidate_sharemode, "invalidate_sharemode" },
		{ create_duplicate_batch, "create_duplicate_batch" },
	};

	printf("CLEANUP3: Checking that a share mode is cleaned up on "
	       "conflict\n");

	for (i=0; i<ARRAY_SIZE(fns); i++) {

		printf("testing %s\n", fns[i].descr);

		if (!create_stale_share_mode_entry(fname, &id)) {
			printf("create_stale_entry failed\n");
			return false;
		}

		printf("%d %d %d\n", (int)id.devid, (int)id.inode,
		       (int)id.extid);

		if (!locking_init()) {
			printf("locking_init failed\n");
			return false;
		}
		lck = get_existing_share_mode_lock(talloc_tos(), id);
		if (lck == NULL) {
			printf("get_existing_share_mode_lock failed\n");
			return false;
		}
		if (lck->data->num_share_modes != 1) {
			printf("get_existing_share_mode_lock did clean up\n");
			return false;
		}

		fns[i].fn(lck->data);

		TALLOC_FREE(lck);

		if (!torture_open_connection(&cli, 0)) {
			return false;
		}
		status = cli_openx(cli, fname, O_RDWR|O_CREAT, DENY_ALL,
				   &fnum);
		if (!NT_STATUS_IS_OK(status)) {
			printf("open of %s failed (%s)\n", fname,
			       nt_errstr(status));
			return false;
		}
		lck = get_existing_share_mode_lock(talloc_tos(), id);
		if (lck == NULL) {
			printf("get_existing_share_mode_lock failed\n");
			return false;
		}
		if (lck->data->num_share_modes != 1) {
			printf("conflicting open did not clean up\n");
			return false;
		}
		TALLOC_FREE(lck);

		torture_close_connection(cli);
	}

	return true;
}

bool run_cleanup4(int dummy)
{
	struct cli_state *cli1, *cli2;
	const char *fname = "\\cleanup4";
	uint16_t fnum1, fnum2;
	NTSTATUS status;

	printf("CLEANUP4: Checking that a conflicting share mode is cleaned "
	       "up\n");

	if (!torture_open_connection(&cli1, 0)) {
		return false;
	}
	if (!torture_open_connection(&cli2, 0)) {
		return false;
	}

	status = cli_ntcreate(
		cli1, fname, 0,
		FILE_GENERIC_READ|DELETE_ACCESS,
		FILE_ATTRIBUTE_NORMAL,
		FILE_SHARE_READ|FILE_SHARE_DELETE,
		FILE_OVERWRITE_IF, 0, 0, &fnum1, NULL);
	if (!NT_STATUS_IS_OK(status)) {
		printf("creating file failed: %s\n",
		       nt_errstr(status));
		return false;
	}

	status = cli_ntcreate(
		cli2, fname, 0,
		FILE_GENERIC_READ|DELETE_ACCESS,
		FILE_ATTRIBUTE_NORMAL,
		FILE_SHARE_READ|FILE_SHARE_DELETE,
		FILE_OPEN, 0, 0, &fnum2, NULL);
	if (!NT_STATUS_IS_OK(status)) {
		printf("opening file 1st time failed: %s\n",
		       nt_errstr(status));
		return false;
	}

	status = smbXcli_conn_samba_suicide(cli1->conn, 1);
	if (!NT_STATUS_IS_OK(status)) {
		printf("smbXcli_conn_samba_suicide failed: %s\n",
		       nt_errstr(status));
		return false;
	}

	/*
	 * The next open will conflict with both opens above. The first open
	 * above will be correctly cleaned up. A bug in smbd iterating over
	 * the share mode array made it skip the share conflict check for the
	 * second open. Trigger this bug.
	 */

	status = cli_ntcreate(
		cli2, fname, 0,
		FILE_GENERIC_WRITE|DELETE_ACCESS,
		FILE_ATTRIBUTE_NORMAL,
		FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
		FILE_OPEN, 0, 0, &fnum2, NULL);
	if (!NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION)) {
		printf("opening file 2nd time returned: %s\n",
		       nt_errstr(status));
		return false;
	}

	return true;
}