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r23784: use the GPLv3 boilerplate as recommended by the FSF and the license text
[Samba/bb.git] / source / torture / locktest.c
blob34068cf0d70e676ff9f42d73474b382040e0958c
1 /*
2 Unix SMB/CIFS implementation.
3 randomised byte range lock tester
4 Copyright (C) Andrew Tridgell 1999
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20 #include "includes.h"
21
22 static fstring password[2];
23 static fstring username[2];
24 static int got_user;
25 static int got_pass;
26 static BOOL use_kerberos;
27 static int numops = 1000;
28 static BOOL showall;
29 static BOOL analyze;
30 static BOOL hide_unlock_fails;
31 static BOOL use_oplocks;
32 static unsigned lock_range = 100;
33 static unsigned lock_base = 0;
34 static unsigned min_length = 0;
35 static BOOL exact_error_codes;
36 static BOOL zero_zero;
37
38 extern char *optarg;
39 extern int optind;
40
41 #define FILENAME "\\locktest.dat"
42
43 #define READ_PCT 50
44 #define LOCK_PCT 45
45 #define UNLOCK_PCT 70
46 #define RANGE_MULTIPLE 1
47 #define NSERVERS 2
48 #define NCONNECTIONS 2
49 #define NFILES 2
50 #define LOCK_TIMEOUT 0
51
52 #define NASTY_POSIX_LOCK_HACK 0
53
54 enum lock_op {OP_LOCK, OP_UNLOCK, OP_REOPEN};
55
56 static const char *lock_op_type(int op)
57 {
58 if (op == WRITE_LOCK) return "write";
59 else if (op == READ_LOCK) return "read";
60 else return "other";
61 }
62
63 static const char *lock_op_name(enum lock_op op)
64 {
65 if (op == OP_LOCK) return "lock";
66 else if (op == OP_UNLOCK) return "unlock";
67 else return "reopen";
68 }
69
70 struct record {
71 enum lock_op lock_op;
72 enum brl_type lock_type;
73 char conn, f;
74 SMB_BIG_UINT start, len;
75 char needed;
76 };
77
78 #define PRESETS 0
79
80 #if PRESETS
81 static struct record preset[] = {
82 {OP_LOCK, WRITE_LOCK, 0, 0, 2, 0, 1},
83 {OP_LOCK, WRITE_LOCK, 0, 0, 0, 0, 1},
84 {OP_LOCK, WRITE_LOCK, 0, 0, 3, 0, 1},
85 {OP_UNLOCK, 0 , 0, 0, 2, 0, 1},
86 {OP_REOPEN, 0, 0, 0, 0, 0, 1},
87
88 {OP_LOCK, READ_LOCK, 0, 0, 2, 0, 1},
89 {OP_LOCK, READ_LOCK, 0, 0, 1, 1, 1},
90 {OP_LOCK, WRITE_LOCK, 0, 0, 0, 0, 1},
91 {OP_REOPEN, 0, 0, 0, 0, 0, 1},
92
93 {OP_LOCK, READ_LOCK, 0, 0, 2, 0, 1},
94 {OP_LOCK, WRITE_LOCK, 0, 0, 3, 1, 1},
95 {OP_LOCK, WRITE_LOCK, 0, 0, 0, 0, 1},
96 {OP_REOPEN, 0, 0, 0, 0, 0, 1},
97
98 {OP_LOCK, READ_LOCK, 0, 0, 2, 0, 1},
99 {OP_LOCK, WRITE_LOCK, 0, 0, 1, 1, 1},
100 {OP_LOCK, WRITE_LOCK, 0, 0, 0, 0, 1},
101 {OP_REOPEN, 0, 0, 0, 0, 0, 1},
102
103 {OP_LOCK, WRITE_LOCK, 0, 0, 2, 0, 1},
104 {OP_LOCK, READ_LOCK, 0, 0, 1, 1, 1},
105 {OP_LOCK, WRITE_LOCK, 0, 0, 0, 0, 1},
106 {OP_REOPEN, 0, 0, 0, 0, 0, 1},
107
108 {OP_LOCK, WRITE_LOCK, 0, 0, 2, 0, 1},
109 {OP_LOCK, READ_LOCK, 0, 0, 3, 1, 1},
110 {OP_LOCK, WRITE_LOCK, 0, 0, 0, 0, 1},
111 {OP_REOPEN, 0, 0, 0, 0, 0, 1},
112
113 };
114 #endif
115
116 static struct record *recorded;
117
118 static void print_brl(struct file_id id,
119 struct server_id pid,
120 enum brl_type lock_type,
121 enum brl_flavour lock_flav,
122 br_off start,
123 br_off size,
124 void *private_data)
125 {
126 #if NASTY_POSIX_LOCK_HACK
127 {
128 pstring cmd;
129 static SMB_INO_T lastino;
130
131 if (lastino != ino) {
132 slprintf(cmd, sizeof(cmd),
133 "egrep POSIX.*%u /proc/locks", (int)ino);
134 system(cmd);
135 }
136 lastino = ino;
137 }
138 #endif
139
140 printf("%s %s %s %.0f:%.0f(%.0f)\n",
141 procid_str_static(&pid), file_id_static_string(&id),
142 lock_type==READ_LOCK?"R":"W",
143 (double)start, (double)start+size-1,(double)size);
144
145 }
146
147
148 static void show_locks(void)
149 {
150 brl_forall(print_brl, NULL);
151 /* system("cat /proc/locks"); */
152 }
153
154
155 /*****************************************************
156 return a connection to a server
157 *******************************************************/
158 static struct cli_state *connect_one(char *share, int snum)
159 {
160 struct cli_state *c;
161 struct nmb_name called, calling;
162 char *server_n;
163 fstring server;
164 struct in_addr ip;
165 fstring myname;
166 static int count;
167 NTSTATUS status;
168
169 fstrcpy(server,share+2);
170 share = strchr_m(server,'\\');
171 if (!share) return NULL;
172 *share = 0;
173 share++;
174
175 server_n = server;
176
177 zero_ip(&ip);
178
179 slprintf(myname,sizeof(myname), "lock-%lu-%u", (unsigned long)getpid(), count++);
180
181 make_nmb_name(&calling, myname, 0x0);
182 make_nmb_name(&called , server, 0x20);
183
184 again:
185 zero_ip(&ip);
186
187 /* have to open a new connection */
188 if (!(c=cli_initialise())) {
189 DEBUG(0,("Connection to %s failed\n", server_n));
190 return NULL;
191 }
192
193 status = cli_connect(c, server_n, &ip);
194 if (!NT_STATUS_IS_OK(status)) {
195 DEBUG(0,("Connection to %s failed. Error %s\n", server_n, nt_errstr(status) ));
196 return NULL;
197 }
198
199 c->use_kerberos = use_kerberos;
200
201 if (!cli_session_request(c, &calling, &called)) {
202 DEBUG(0,("session request to %s failed\n", called.name));
203 cli_shutdown(c);
204 if (strcmp(called.name, "*SMBSERVER")) {
205 make_nmb_name(&called , "*SMBSERVER", 0x20);
206 goto again;
207 }
208 return NULL;
209 }
210
211 DEBUG(4,(" session request ok\n"));
212
213 if (!cli_negprot(c)) {
214 DEBUG(0,("protocol negotiation failed\n"));
215 cli_shutdown(c);
216 return NULL;
217 }
218
219 if (!got_pass) {
220 char *pass = getpass("Password: ");
221 if (pass) {
222 fstrcpy(password[0], pass);
223 fstrcpy(password[1], pass);
224 }
225 }
226
227 if (got_pass == 1) {
228 fstrcpy(password[1], password[0]);
229 fstrcpy(username[1], username[0]);
230 }
231
232 if (!NT_STATUS_IS_OK(cli_session_setup(c, username[snum],
233 password[snum],
234 strlen(password[snum]),
235 password[snum],
236 strlen(password[snum]),
237 lp_workgroup()))) {
238 DEBUG(0,("session setup failed: %s\n", cli_errstr(c)));
239 return NULL;
240 }
241
242 /*
243 * These next two lines are needed to emulate
244 * old client behaviour for people who have
245 * scripts based on client output.
246 * QUESTION ? Do we want to have a 'client compatibility
247 * mode to turn these on/off ? JRA.
248 */
249
250 if (*c->server_domain || *c->server_os || *c->server_type)
251 DEBUG(1,("Domain=[%s] OS=[%s] Server=[%s]\n",
252 c->server_domain,c->server_os,c->server_type));
253
254 DEBUG(4,(" session setup ok\n"));
255
256 if (!cli_send_tconX(c, share, "?????",
257 password[snum], strlen(password[snum])+1)) {
258 DEBUG(0,("tree connect failed: %s\n", cli_errstr(c)));
259 cli_shutdown(c);
260 return NULL;
261 }
262
263 DEBUG(4,(" tconx ok\n"));
264
265 c->use_oplocks = use_oplocks;
266
267 return c;
268 }
269
270
271 static void reconnect(struct cli_state *cli[NSERVERS][NCONNECTIONS], int fnum[NSERVERS][NCONNECTIONS][NFILES],
272 char *share[NSERVERS])
273 {
274 int server, conn, f;
275
276 for (server=0;server<NSERVERS;server++)
277 for (conn=0;conn<NCONNECTIONS;conn++) {
278 if (cli[server][conn]) {
279 for (f=0;f<NFILES;f++) {
280 if (fnum[server][conn][f] != -1) {
281 cli_close(cli[server][conn], fnum[server][conn][f]);
282 fnum[server][conn][f] = -1;
283 }
284 }
285 cli_ulogoff(cli[server][conn]);
286 cli_shutdown(cli[server][conn]);
287 }
288 cli[server][conn] = connect_one(share[server], server);
289 if (!cli[server][conn]) {
290 DEBUG(0,("Failed to connect to %s\n", share[server]));
291 exit(1);
292 }
293 }
294 }
295
296
297
298 static BOOL test_one(struct cli_state *cli[NSERVERS][NCONNECTIONS],
299 int fnum[NSERVERS][NCONNECTIONS][NFILES],
300 struct record *rec)
301 {
302 unsigned conn = rec->conn;
303 unsigned f = rec->f;
304 SMB_BIG_UINT start = rec->start;
305 SMB_BIG_UINT len = rec->len;
306 enum brl_type op = rec->lock_type;
307 int server;
308 BOOL ret[NSERVERS];
309 NTSTATUS status[NSERVERS];
310
311 switch (rec->lock_op) {
312 case OP_LOCK:
313 /* set a lock */
314 for (server=0;server<NSERVERS;server++) {
315 ret[server] = cli_lock64(cli[server][conn],
316 fnum[server][conn][f],
317 start, len, LOCK_TIMEOUT, op);
318 status[server] = cli_nt_error(cli[server][conn]);
319 if (!exact_error_codes &&
320 NT_STATUS_EQUAL(status[server],
321 NT_STATUS_FILE_LOCK_CONFLICT)) {
322 status[server] = NT_STATUS_LOCK_NOT_GRANTED;
323 }
324 }
325 if (showall || !NT_STATUS_EQUAL(status[0],status[1])) {
326 printf("lock conn=%u f=%u range=%.0f(%.0f) op=%s -> %s:%s\n",
327 conn, f,
328 (double)start, (double)len,
329 op==READ_LOCK?"READ_LOCK":"WRITE_LOCK",
330 nt_errstr(status[0]), nt_errstr(status[1]));
331 }
332 if (showall || !NT_STATUS_EQUAL(status[0],status[1])) show_locks();
333 if (!NT_STATUS_EQUAL(status[0],status[1])) return False;
334 break;
335
336 case OP_UNLOCK:
337 /* unset a lock */
338 for (server=0;server<NSERVERS;server++) {
339 ret[server] = cli_unlock64(cli[server][conn],
340 fnum[server][conn][f],
341 start, len);
342 status[server] = cli_nt_error(cli[server][conn]);
343 }
344 if (showall ||
345 (!hide_unlock_fails && !NT_STATUS_EQUAL(status[0],status[1]))) {
346 printf("unlock conn=%u f=%u range=%.0f(%.0f) -> %s:%s\n",
347 conn, f,
348 (double)start, (double)len,
349 nt_errstr(status[0]), nt_errstr(status[1]));
350 }
351 if (showall || !NT_STATUS_EQUAL(status[0],status[1])) show_locks();
352 if (!hide_unlock_fails && !NT_STATUS_EQUAL(status[0],status[1]))
353 return False;
354 break;
355
356 case OP_REOPEN:
357 /* reopen the file */
358 for (server=0;server<NSERVERS;server++) {
359 cli_close(cli[server][conn], fnum[server][conn][f]);
360 fnum[server][conn][f] = -1;
361 }
362 for (server=0;server<NSERVERS;server++) {
363 fnum[server][conn][f] = cli_open(cli[server][conn], FILENAME,
364 O_RDWR|O_CREAT,
365 DENY_NONE);
366 if (fnum[server][conn][f] == -1) {
367 printf("failed to reopen on share%d\n", server);
368 return False;
369 }
370 }
371 if (showall) {
372 printf("reopen conn=%u f=%u\n",
373 conn, f);
374 show_locks();
375 }
376 break;
377 }
378
379 return True;
380 }
381
382 static void close_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
383 int fnum[NSERVERS][NCONNECTIONS][NFILES])
384 {
385 int server, conn, f;
386
387 for (server=0;server<NSERVERS;server++)
388 for (conn=0;conn<NCONNECTIONS;conn++)
389 for (f=0;f<NFILES;f++) {
390 if (fnum[server][conn][f] != -1) {
391 cli_close(cli[server][conn], fnum[server][conn][f]);
392 fnum[server][conn][f] = -1;
393 }
394 }
395 for (server=0;server<NSERVERS;server++) {
396 cli_unlink(cli[server][0], FILENAME);
397 }
398 }
399
400 static void open_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
401 int fnum[NSERVERS][NCONNECTIONS][NFILES])
402 {
403 int server, conn, f;
404
405 for (server=0;server<NSERVERS;server++)
406 for (conn=0;conn<NCONNECTIONS;conn++)
407 for (f=0;f<NFILES;f++) {
408 fnum[server][conn][f] = cli_open(cli[server][conn], FILENAME,
409 O_RDWR|O_CREAT,
410 DENY_NONE);
411 if (fnum[server][conn][f] == -1) {
412 fprintf(stderr,"Failed to open fnum[%u][%u][%u]\n",
413 server, conn, f);
414 exit(1);
415 }
416 }
417 }
418
419
420 static int retest(struct cli_state *cli[NSERVERS][NCONNECTIONS],
421 int fnum[NSERVERS][NCONNECTIONS][NFILES],
422 int n)
423 {
424 int i;
425 printf("testing %u ...\n", n);
426 for (i=0; i<n; i++) {
427 if (i && i % 100 == 0) {
428 printf("%u\n", i);
429 }
430
431 if (recorded[i].needed &&
432 !test_one(cli, fnum, &recorded[i])) return i;
433 }
434 return n;
435 }
436
437
438 /* each server has two connections open to it. Each connection has two file
439 descriptors open on the file - 8 file descriptors in total
440
441 we then do random locking ops in tamdem on the 4 fnums from each
442 server and ensure that the results match
443 */
444 static void test_locks(char *share[NSERVERS])
445 {
446 struct cli_state *cli[NSERVERS][NCONNECTIONS];
447 int fnum[NSERVERS][NCONNECTIONS][NFILES];
448 int n, i, n1, skip, r1, r2;
449
450 ZERO_STRUCT(fnum);
451 ZERO_STRUCT(cli);
452
453 recorded = SMB_MALLOC_ARRAY(struct record, numops);
454
455 for (n=0; n<numops; n++) {
456 #if PRESETS
457 if (n < sizeof(preset) / sizeof(preset[0])) {
458 recorded[n] = preset[n];
459 } else {
460 #endif
461 recorded[n].conn = random() % NCONNECTIONS;
462 recorded[n].f = random() % NFILES;
463 recorded[n].start = lock_base + ((unsigned)random() % (lock_range-1));
464 recorded[n].len = min_length +
465 random() % (lock_range-(recorded[n].start-lock_base));
466 recorded[n].start *= RANGE_MULTIPLE;
467 recorded[n].len *= RANGE_MULTIPLE;
468 r1 = random() % 100;
469 r2 = random() % 100;
470 if (r1 < READ_PCT) {
471 recorded[n].lock_type = READ_LOCK;
472 } else {
473 recorded[n].lock_type = WRITE_LOCK;
474 }
475 if (r2 < LOCK_PCT) {
476 recorded[n].lock_op = OP_LOCK;
477 } else if (r2 < UNLOCK_PCT) {
478 recorded[n].lock_op = OP_UNLOCK;
479 } else {
480 recorded[n].lock_op = OP_REOPEN;
481 }
482 recorded[n].needed = True;
483 if (!zero_zero && recorded[n].start==0 && recorded[n].len==0) {
484 recorded[n].len = 1;
485 }
486 #if PRESETS
487 }
488 #endif
489 }
490
491 reconnect(cli, fnum, share);
492 open_files(cli, fnum);
493 n = retest(cli, fnum, numops);
494
495 if (n == numops || !analyze) return;
496 n++;
497
498 skip = n/2;
499
500 while (1) {
501 n1 = n;
502
503 close_files(cli, fnum);
504 reconnect(cli, fnum, share);
505 open_files(cli, fnum);
506
507 for (i=0;i<n-skip;i+=skip) {
508 int m, j;
509 printf("excluding %d-%d\n", i, i+skip-1);
510 for (j=i;j<i+skip;j++) {
511 recorded[j].needed = False;
512 }
513
514 close_files(cli, fnum);
515 open_files(cli, fnum);
516
517 m = retest(cli, fnum, n);
518 if (m == n) {
519 for (j=i;j<i+skip;j++) {
520 recorded[j].needed = True;
521 }
522 } else {
523 if (i+(skip-1) < m) {
524 memmove(&recorded[i], &recorded[i+skip],
525 (m-(i+skip-1))*sizeof(recorded[0]));
526 }
527 n = m-(skip-1);
528 i--;
529 }
530 }
531
532 if (skip > 1) {
533 skip = skip/2;
534 printf("skip=%d\n", skip);
535 continue;
536 }
537
538 if (n1 == n) break;
539 }
540
541 close_files(cli, fnum);
542 reconnect(cli, fnum, share);
543 open_files(cli, fnum);
544 showall = True;
545 n1 = retest(cli, fnum, n);
546 if (n1 != n-1) {
547 printf("ERROR - inconsistent result (%u %u)\n", n1, n);
548 }
549 close_files(cli, fnum);
550
551 for (i=0;i<n;i++) {
552 printf("{%s, %s, conn = %u, file = %u, start = %.0f, len = %.0f, %u},\n",
553 lock_op_name(recorded[i].lock_op),
554 lock_op_type(recorded[i].lock_type),
555 recorded[i].conn,
556 recorded[i].f,
557 (double)recorded[i].start,
558 (double)recorded[i].len,
559 recorded[i].needed);
560 }
561 }
562
563
564
565 static void usage(void)
566 {
567 printf(
568 "Usage:\n\
569 locktest //server1/share1 //server2/share2 [options..]\n\
570 options:\n\
571 -U user%%pass (may be specified twice)\n\
572 -k use kerberos\n\
573 -s seed\n\
574 -o numops\n\
575 -u hide unlock fails\n\
576 -a (show all ops)\n\
577 -A analyse for minimal ops\n\
578 -O use oplocks\n\
579 -E enable exact error code checking\n\
580 -Z enable the zero/zero lock\n\
581 -R range set lock range\n\
582 -B base set lock base\n\
583 -M min set min lock length\n\
584 ");
585 }
586
587 /****************************************************************************
588 main program
589 ****************************************************************************/
590 int main(int argc,char *argv[])
591 {
592 char *share[NSERVERS];
593 int opt;
594 char *p;
595 int seed, server;
596
597 setlinebuf(stdout);
598
599 load_case_tables();
600
601 dbf = x_stderr;
602
603 if (argc < 3 || argv[1][0] == '-') {
604 usage();
605 exit(1);
606 }
607
608 setup_logging(argv[0],True);
609
610 for (server=0;server<NSERVERS;server++) {
611 share[server] = argv[1+server];
612 all_string_sub(share[server],"/","\\",0);
613 }
614
615 argc -= NSERVERS;
616 argv += NSERVERS;
617
618 lp_load(dyn_CONFIGFILE,True,False,False,True);
619 load_interfaces();
620
621 if (getenv("USER")) {
622 fstrcpy(username[0],getenv("USER"));
623 fstrcpy(username[1],getenv("USER"));
624 }
625
626 seed = time(NULL);
627
628 while ((opt = getopt(argc, argv, "U:s:ho:aAW:OkR:B:M:EZ")) != EOF) {
629 switch (opt) {
630 case 'k':
631 #ifdef HAVE_KRB5
632 use_kerberos = True;
633 #else
634 d_printf("No kerberos support compiled in\n");
635 exit(1);
636 #endif
637 break;
638 case 'U':
639 got_user = 1;
640 if (got_pass == 2) {
641 d_printf("Max of 2 usernames\n");
642 exit(1);
643 }
644 fstrcpy(username[got_pass],optarg);
645 p = strchr_m(username[got_pass],'%');
646 if (p) {
647 *p = 0;
648 fstrcpy(password[got_pass], p+1);
649 got_pass++;
650 }
651 break;
652 case 'R':
653 lock_range = strtol(optarg, NULL, 0);
654 break;
655 case 'B':
656 lock_base = strtol(optarg, NULL, 0);
657 break;
658 case 'M':
659 min_length = strtol(optarg, NULL, 0);
660 break;
661 case 's':
662 seed = atoi(optarg);
663 break;
664 case 'u':
665 hide_unlock_fails = True;
666 break;
667 case 'o':
668 numops = atoi(optarg);
669 break;
670 case 'O':
671 use_oplocks = True;
672 break;
673 case 'a':
674 showall = True;
675 break;
676 case 'A':
677 analyze = True;
678 break;
679 case 'Z':
680 zero_zero = True;
681 break;
682 case 'E':
683 exact_error_codes = True;
684 break;
685 case 'h':
686 usage();
687 exit(1);
688 default:
689 printf("Unknown option %c (%d)\n", (char)opt, opt);
690 exit(1);
691 }
692 }
693
694 if(use_kerberos && !got_user) got_pass = True;
695
696 argc -= optind;
697 argv += optind;
698
699 DEBUG(0,("seed=%u\n", seed));
700 srandom(seed);
701
702 test_locks(share);
703
704 return(0);
705 }