source4/torture/locktest.c

   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 #include "lib/cmdline/popt_common.h"
  22 #include "lib/events/events.h"
  23 #include "system/filesys.h"
  24 #include "system/time.h"
  25 #include "pstring.h"
  26 #include "auth/credentials/credentials.h"
  27 #include "auth/gensec/gensec.h"
  28 #include "libcli/libcli.h"
  29 #include "param/param.h"
  30 #include "dynconfig.h"
  31 #include "libcli/resolve/resolve.h"
  32
  33 static int numops = 1000;
  34 static int showall;
  35 static int analyze;
  36 static int hide_unlock_fails;
  37 static int use_oplocks;
  38 static uint_t lock_range = 100;
  39 static uint_t lock_base = 0;
  40 static uint_t min_length = 0;
  41 static int exact_error_codes;
  42 static int zero_zero;
  43
  44 #define FILENAME "\\locktest.dat"
  45
  46 #define READ_PCT 50
  47 #define LOCK_PCT 45
  48 #define UNLOCK_PCT 70
  49 #define RANGE_MULTIPLE 1
  50 #define NSERVERS 2
  51 #define NCONNECTIONS 2
  52 #define NFILES 2
  53 #define LOCK_TIMEOUT 0
  54
  55 static struct cli_credentials *servers[NSERVERS];
  56
  57 enum lock_op {OP_LOCK, OP_UNLOCK, OP_REOPEN};
  58
  59 struct record {
  60         enum lock_op lock_op;
  61         enum brl_type lock_type;
  62         char conn, f;
  63         uint64_t start, len;
  64         char needed;
  65         uint16_t pid;
  66 };
  67
  68 #define PRESETS 0
  69
  70 #if PRESETS
  71 static struct record preset[] = {
  72 {OP_LOCK, WRITE_LOCK, 0, 0, 2, 0, 1},
  73 {OP_LOCK, WRITE_LOCK, 0, 0, 0, 0, 1},
  74 {OP_LOCK, WRITE_LOCK, 0, 0, 3, 0, 1},
  75 {OP_UNLOCK, 0       , 0, 0, 2, 0, 1},
  76 {OP_REOPEN, 0, 0, 0, 0, 0, 1},
  77
  78 {OP_LOCK, READ_LOCK, 0, 0, 2, 0, 1},
  79 {OP_LOCK, READ_LOCK, 0, 0, 1, 1, 1},
  80 {OP_LOCK, WRITE_LOCK, 0, 0, 0, 0, 1},
  81 {OP_REOPEN, 0, 0, 0, 0, 0, 1},
  82
  83 {OP_LOCK, READ_LOCK, 0, 0, 2, 0, 1},
  84 {OP_LOCK, WRITE_LOCK, 0, 0, 3, 1, 1},
  85 {OP_LOCK, WRITE_LOCK, 0, 0, 0, 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, WRITE_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, WRITE_LOCK, 0, 0, 2, 0, 1},
  94 {OP_LOCK, READ_LOCK, 0, 0, 1, 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, WRITE_LOCK, 0, 0, 2, 0, 1},
  99 {OP_LOCK, READ_LOCK, 0, 0, 3, 1, 1},
 100 {OP_LOCK, WRITE_LOCK, 0, 0, 0, 0, 1},
 101 {OP_REOPEN, 0, 0, 0, 0, 0, 1},
 102
 103 };
 104 #endif
 105
 106 static struct record *recorded;
 107
 108 /*****************************************************
 109 return a connection to a server
 110 *******************************************************/
 111 static struct smbcli_state *connect_one(struct event_context *ev,
 112                                         struct loadparm_context *lp_ctx,
 113                                         char *share, int snum, int conn)
 114 {
 115         struct smbcli_state *c;
 116         fstring server, myname;
 117         NTSTATUS status;
 118         int retries = 10;
 119         struct smbcli_options options;
 120
 121         lp_smbcli_options(lp_ctx, &options);
 122
 123         printf("connect_one(%s, %d, %d)\n", share, snum, conn);
 124
 125         fstrcpy(server,share+2);
 126         share = strchr_m(server,'\\');
 127         if (!share) return NULL;
 128         *share = 0;
 129         share++;
 130
 131         if (snum == 0) {
 132                 char **unc_list = NULL;
 133                 int num_unc_names;
 134                 const char *p;
 135                 p = lp_parm_string(lp_ctx, NULL, "torture", "unclist");
 136                 if (p) {
 137                         char *h, *s;
 138                         unc_list = file_lines_load(p, &num_unc_names, NULL);
 139                         if (!unc_list || num_unc_names <= 0) {
 140                                 printf("Failed to load unc names list from '%s'\n", p);
 141                                 exit(1);
 142                         }
 143
 144                         if (!smbcli_parse_unc(unc_list[conn % num_unc_names],
 145                                               NULL, &h, &s)) {
 146                                 printf("Failed to parse UNC name %s\n",
 147                                        unc_list[conn % num_unc_names]);
 148                                 exit(1);
 149                         }
 150                         fstrcpy(server, h);
 151                         fstrcpy(share, s);
 152                 }
 153         }
 154
 155
 156         slprintf(myname,sizeof(myname), "lock-%u-%u", getpid(), snum);
 157         cli_credentials_set_workstation(servers[snum], myname, CRED_SPECIFIED);
 158
 159         do {
 160                 printf("\\\\%s\\%s\n", server, share);
 161                 status = smbcli_full_connection(NULL, &c,
 162                                                 server,
 163                                                 lp_smb_ports(lp_ctx),
 164                                                 share, NULL,
 165                                                 servers[snum],
 166                                                 lp_resolve_context(lp_ctx),
 167                                                 ev, &options);
 168                 if (!NT_STATUS_IS_OK(status)) {
 169                         sleep(2);
 170                 }
 171         } while (!NT_STATUS_IS_OK(status) && retries--);
 172
 173         if (!NT_STATUS_IS_OK(status)) {
 174                 return NULL;
 175         }
 176
 177         return c;
 178 }
 179
 180
 181 static void reconnect(struct event_context *ev,
 182                       struct loadparm_context *lp_ctx,
 183                       struct smbcli_state *cli[NSERVERS][NCONNECTIONS], int fnum[NSERVERS][NCONNECTIONS][NFILES],
 184                       char *share[NSERVERS])
 185 {
 186         int server, conn, f;
 187
 188         for (server=0;server<NSERVERS;server++)
 189         for (conn=0;conn<NCONNECTIONS;conn++) {
 190                 if (cli[server][conn]) {
 191                         for (f=0;f<NFILES;f++) {
 192                                 if (fnum[server][conn][f] != -1) {
 193                                         smbcli_close(cli[server][conn]->tree, fnum[server][conn][f]);
 194                                         fnum[server][conn][f] = -1;
 195                                 }
 196                         }
 197                         talloc_free(cli[server][conn]);
 198                 }
 199                 cli[server][conn] = connect_one(ev, lp_ctx, share[server],
 200                                                 server, conn);
 201                 if (!cli[server][conn]) {
 202                         DEBUG(0,("Failed to connect to %s\n", share[server]));
 203                         exit(1);
 204                 }
 205         }
 206 }
 207
 208
 209
 210 static bool test_one(struct smbcli_state *cli[NSERVERS][NCONNECTIONS],
 211                      int fnum[NSERVERS][NCONNECTIONS][NFILES],
 212                      struct record *rec)
 213 {
 214         uint_t conn = rec->conn;
 215         uint_t f = rec->f;
 216         uint64_t start = rec->start;
 217         uint64_t len = rec->len;
 218         enum brl_type op = rec->lock_type;
 219         int server;
 220         bool ret[NSERVERS];
 221         NTSTATUS status[NSERVERS];
 222
 223         switch (rec->lock_op) {
 224         case OP_LOCK:
 225                 /* set a lock */
 226                 for (server=0;server<NSERVERS;server++) {
 227                         NTSTATUS res;
 228                         struct smbcli_tree *tree=cli[server][conn]->tree;
 229                         int fn=fnum[server][conn][f];
 230
 231                         if (!(tree->session->transport->negotiate.capabilities & CAP_LARGE_FILES)) {
 232                                 res=smbcli_lock(tree, fn, start, len, LOCK_TIMEOUT, rec->lock_op);
 233                         } else {
 234                                 union smb_lock parms;
 235                                 int ltype;
 236                                 struct smb_lock_entry lock[1];
 237
 238                                 parms.lockx.level = RAW_LOCK_LOCKX;
 239                                 parms.lockx.in.file.fnum = fn;
 240
 241                                 ltype = (rec->lock_op == READ_LOCK? 1 : 0);
 242                                 ltype |= LOCKING_ANDX_LARGE_FILES;
 243                                 parms.lockx.in.mode = ltype;
 244                                 parms.lockx.in.timeout = LOCK_TIMEOUT;
 245                                 parms.lockx.in.ulock_cnt = 0;
 246                                 parms.lockx.in.lock_cnt = 1;
 247                                 lock[0].pid = rec->pid;
 248                                 lock[0].offset = start;
 249                                 lock[0].count = len;
 250                                 parms.lockx.in.locks = &lock[0];
 251
 252                                 res = smb_raw_lock(tree, &parms);
 253                         }
 254
 255                         ret[server] = NT_STATUS_IS_OK(res);
 256                         status[server] = smbcli_nt_error(cli[server][conn]->tree);
 257                         if (!exact_error_codes &&
 258                             NT_STATUS_EQUAL(status[server],
 259                                             NT_STATUS_FILE_LOCK_CONFLICT)) {
 260                                 status[server] = NT_STATUS_LOCK_NOT_GRANTED;
 261                         }
 262                 }
 263                 if (showall || !NT_STATUS_EQUAL(status[0],status[1])) {
 264                         printf("lock   conn=%u f=%u range=%.0f(%.0f) op=%s -> %s:%s\n",
 265                                conn, f,
 266                                (double)start, (double)len,
 267                                op==READ_LOCK?"READ_LOCK":"WRITE_LOCK",
 268                                nt_errstr(status[0]), nt_errstr(status[1]));
 269                 }
 270                 if (!NT_STATUS_EQUAL(status[0],status[1])) return false;
 271                 break;
 272
 273         case OP_UNLOCK:
 274                 /* unset a lock */
 275                 for (server=0;server<NSERVERS;server++) {
 276                         NTSTATUS res;
 277                         struct smbcli_tree *tree=cli[server][conn]->tree;
 278                         int fn=fnum[server][conn][f];
 279
 280
 281                         if (!(tree->session->transport->negotiate.capabilities & CAP_LARGE_FILES)) {
 282                                 res=smbcli_unlock(tree, fn, start, len);
 283                         } else {
 284                                 union smb_lock parms;
 285                                 struct smb_lock_entry lock[1];
 286
 287                                 parms.lockx.level = RAW_LOCK_LOCKX;
 288                                 parms.lockx.in.file.fnum = fn;
 289                                 parms.lockx.in.mode = LOCKING_ANDX_LARGE_FILES;
 290                                 parms.lockx.in.timeout = 0;
 291                                 parms.lockx.in.ulock_cnt = 1;
 292                                 parms.lockx.in.lock_cnt = 0;
 293                                 lock[0].pid = rec->pid;
 294                                 lock[0].count = len;
 295                                 lock[0].offset = start;
 296                                 parms.lockx.in.locks = &lock[0];
 297
 298                                 res = smb_raw_lock(tree, &parms);
 299                         }
 300
 301                         ret[server] = NT_STATUS_IS_OK(res);
 302                         status[server] = smbcli_nt_error(cli[server][conn]->tree);
 303                 }
 304                 if (showall ||
 305                     (!hide_unlock_fails && !NT_STATUS_EQUAL(status[0],status[1]))) {
 306                         printf("unlock conn=%u f=%u range=%.0f(%.0f)       -> %s:%s\n",
 307                                conn, f,
 308                                (double)start, (double)len,
 309                                nt_errstr(status[0]), nt_errstr(status[1]));
 310                 }
 311                 if (!hide_unlock_fails && !NT_STATUS_EQUAL(status[0],status[1]))
 312                         return false;
 313                 break;
 314
 315         case OP_REOPEN:
 316                 /* reopen the file */
 317                 for (server=0;server<NSERVERS;server++) {
 318                         smbcli_close(cli[server][conn]->tree, fnum[server][conn][f]);
 319                         fnum[server][conn][f] = -1;
 320                 }
 321                 for (server=0;server<NSERVERS;server++) {
 322                         fnum[server][conn][f] = smbcli_open(cli[server][conn]->tree, FILENAME,
 323                                                          O_RDWR|O_CREAT,
 324                                                          DENY_NONE);
 325                         if (fnum[server][conn][f] == -1) {
 326                                 printf("failed to reopen on share%d\n", server);
 327                                 return false;
 328                         }
 329                 }
 330                 if (showall) {
 331                         printf("reopen conn=%u f=%u\n",
 332                                conn, f);
 333                 }
 334                 break;
 335         }
 336
 337         return true;
 338 }
 339
 340 static void close_files(struct smbcli_state *cli[NSERVERS][NCONNECTIONS],
 341                         int fnum[NSERVERS][NCONNECTIONS][NFILES])
 342 {
 343         int server, conn, f;
 344
 345         for (server=0;server<NSERVERS;server++)
 346         for (conn=0;conn<NCONNECTIONS;conn++)
 347         for (f=0;f<NFILES;f++) {
 348                 if (fnum[server][conn][f] != -1) {
 349                         smbcli_close(cli[server][conn]->tree, fnum[server][conn][f]);
 350                         fnum[server][conn][f] = -1;
 351                 }
 352         }
 353         for (server=0;server<NSERVERS;server++) {
 354                 smbcli_unlink(cli[server][0]->tree, FILENAME);
 355         }
 356 }
 357
 358 static void open_files(struct smbcli_state *cli[NSERVERS][NCONNECTIONS],
 359                        int fnum[NSERVERS][NCONNECTIONS][NFILES])
 360 {
 361         int server, conn, f;
 362
 363         for (server=0;server<NSERVERS;server++)
 364         for (conn=0;conn<NCONNECTIONS;conn++)
 365         for (f=0;f<NFILES;f++) {
 366                 fnum[server][conn][f] = smbcli_open(cli[server][conn]->tree, FILENAME,
 367                                                  O_RDWR|O_CREAT,
 368                                                  DENY_NONE);
 369                 if (fnum[server][conn][f] == -1) {
 370                         fprintf(stderr,"Failed to open fnum[%u][%u][%u]\n",
 371                                 server, conn, f);
 372                         exit(1);
 373                 }
 374         }
 375 }
 376
 377
 378 static int retest(struct smbcli_state *cli[NSERVERS][NCONNECTIONS],
 379                    int fnum[NSERVERS][NCONNECTIONS][NFILES],
 380                    int n)
 381 {
 382         int i;
 383         printf("testing %u ...\n", n);
 384         for (i=0; i<n; i++) {
 385                 if (i && i % 100 == 0) {
 386                         printf("%u\n", i);
 387                 }
 388
 389                 if (recorded[i].needed &&
 390                     !test_one(cli, fnum, &recorded[i])) return i;
 391         }
 392         return n;
 393 }
 394
 395
 396 /* each server has two connections open to it. Each connection has two file
 397    descriptors open on the file - 8 file descriptors in total
 398
 399    we then do random locking ops in tamdem on the 4 fnums from each
 400    server and ensure that the results match
 401  */
 402 static int test_locks(struct event_context *ev,
 403                       struct loadparm_context *lp_ctx,
 404                       char *share[NSERVERS])
 405 {
 406         struct smbcli_state *cli[NSERVERS][NCONNECTIONS];
 407         int fnum[NSERVERS][NCONNECTIONS][NFILES];
 408         int n, i, n1, skip, r1, r2;
 409
 410         ZERO_STRUCT(fnum);
 411         ZERO_STRUCT(cli);
 412
 413         recorded = malloc_array_p(struct record, numops);
 414
 415         for (n=0; n<numops; n++) {
 416 #if PRESETS
 417                 if (n < sizeof(preset) / sizeof(preset[0])) {
 418                         recorded[n] = preset[n];
 419                 } else {
 420 #endif
 421                         recorded[n].conn = random() % NCONNECTIONS;
 422                         recorded[n].f = random() % NFILES;
 423                         recorded[n].start = lock_base + ((uint_t)random() % (lock_range-1));
 424                         recorded[n].len =  min_length +
 425                                 random() % (lock_range-(recorded[n].start-lock_base));
 426                         recorded[n].start *= RANGE_MULTIPLE;
 427                         recorded[n].len *= RANGE_MULTIPLE;
 428                         recorded[n].pid = random()%3;
 429                         if (recorded[n].pid == 2) {
 430                                 recorded[n].pid = 0xFFFF; /* see if its magic */
 431                         }
 432                         r1 = random() % 100;
 433                         r2 = random() % 100;
 434                         if (r1 < READ_PCT) {
 435                                 recorded[n].lock_type = READ_LOCK;
 436                         } else {
 437                                 recorded[n].lock_type = WRITE_LOCK;
 438                         }
 439                         if (r2 < LOCK_PCT) {
 440                                 recorded[n].lock_op = OP_LOCK;
 441                         } else if (r2 < UNLOCK_PCT) {
 442                                 recorded[n].lock_op = OP_UNLOCK;
 443                         } else {
 444                                 recorded[n].lock_op = OP_REOPEN;
 445                         }
 446                         recorded[n].needed = true;
 447                         if (!zero_zero && recorded[n].start==0 && recorded[n].len==0) {
 448                                 recorded[n].len = 1;
 449                         }
 450 #if PRESETS
 451                 }
 452 #endif
 453         }
 454
 455         reconnect(ev, lp_ctx, cli, fnum, share);
 456         open_files(cli, fnum);
 457         n = retest(cli, fnum, numops);
 458
 459         if (n == numops || !analyze) {
 460                 if (n != numops) {
 461                         return 1;
 462                 }
 463                 return 0;
 464         }
 465         n++;
 466
 467         skip = n/2;
 468
 469         while (1) {
 470                 n1 = n;
 471
 472                 close_files(cli, fnum);
 473                 reconnect(ev, lp_ctx, cli, fnum, share);
 474                 open_files(cli, fnum);
 475
 476                 for (i=0;i<n-skip;i+=skip) {
 477                         int m, j;
 478                         printf("excluding %d-%d\n", i, i+skip-1);
 479                         for (j=i;j<i+skip;j++) {
 480                                 recorded[j].needed = false;
 481                         }
 482
 483                         close_files(cli, fnum);
 484                         open_files(cli, fnum);
 485
 486                         m = retest(cli, fnum, n);
 487                         if (m == n) {
 488                                 for (j=i;j<i+skip;j++) {
 489                                         recorded[j].needed = true;
 490                                 }
 491                         } else {
 492                                 if (i+(skip-1) < m) {
 493                                         memmove(&recorded[i], &recorded[i+skip],
 494                                                 (m-(i+skip-1))*sizeof(recorded[0]));
 495                                 }
 496                                 n = m-(skip-1);
 497                                 i--;
 498                         }
 499                 }
 500
 501                 if (skip > 1) {
 502                         skip = skip/2;
 503                         printf("skip=%d\n", skip);
 504                         continue;
 505                 }
 506
 507                 if (n1 == n) break;
 508         }
 509
 510         close_files(cli, fnum);
 511         reconnect(ev, lp_ctx, cli, fnum, share);
 512         open_files(cli, fnum);
 513         showall = true;
 514         n1 = retest(cli, fnum, n);
 515         if (n1 != n-1) {
 516                 printf("ERROR - inconsistent result (%u %u)\n", n1, n);
 517         }
 518         close_files(cli, fnum);
 519
 520         for (i=0;i<n;i++) {
 521                 printf("{%d, %d, %u, %u, %.0f, %.0f, %u},\n",
 522                        recorded[i].lock_op,
 523                        recorded[i].lock_type,
 524                        recorded[i].conn,
 525                        recorded[i].f,
 526                        (double)recorded[i].start,
 527                        (double)recorded[i].len,
 528                        recorded[i].needed);
 529         }
 530
 531         return 1;
 532 }
 533
 534
 535
 536 static void usage(poptContext pc)
 537 {
 538         printf("Usage:\n\tlocktest //server1/share1 //server2/share2 [options..]\n");
 539         poptPrintUsage(pc, stdout, 0);
 540 }
 541
 542 /****************************************************************************
 543   main program
 544 ****************************************************************************/
 545  int main(int argc,char *argv[])
 546 {
 547         char *share[NSERVERS];
 548         int opt;
 549         int seed, server;
 550         int username_count=0;
 551         struct event_context *ev;
 552         struct loadparm_context *lp_ctx;
 553         poptContext pc;
 554         int argc_new, i;
 555         char **argv_new;
 556         enum {OPT_UNCLIST=1000};
 557         struct poptOption long_options[] = {
 558                 POPT_AUTOHELP
 559                 {"seed",          0, POPT_ARG_INT,  &seed,      0,      "Seed to use for randomizer",   NULL},
 560                 {"num-ops",       0, POPT_ARG_INT,  &numops,    0,      "num ops",      NULL},
 561                 {"lockrange",     0, POPT_ARG_INT,  &lock_range,0,      "locking range", NULL},
 562                 {"lockbase",      0, POPT_ARG_INT,  &lock_base, 0,      "locking base", NULL},
 563                 {"minlength",     0, POPT_ARG_INT,  &min_length,0,      "min lock length", NULL},
 564                 {"hidefails",     0, POPT_ARG_NONE, &hide_unlock_fails,0,"hide unlock fails", NULL},
 565                 {"oplocks",       0, POPT_ARG_NONE, &use_oplocks,0,      "use oplocks", NULL},
 566                 {"showall",       0, POPT_ARG_NONE, &showall,    0,      "display all operations", NULL},
 567                 {"analyse",       0, POPT_ARG_NONE, &analyze,    0,      "do backtrack analysis", NULL},
 568                 {"zerozero",      0, POPT_ARG_NONE, &zero_zero,    0,      "do zero/zero lock", NULL},
 569                 {"exacterrors",   0, POPT_ARG_NONE, &exact_error_codes,0,"use exact error codes", NULL},
 570                 {"unclist",       0, POPT_ARG_STRING,   NULL,   OPT_UNCLIST,    "unclist",      NULL},
 571                 { "user", 'U',       POPT_ARG_STRING, NULL, 'U', "Set the network username", "[DOMAIN/]USERNAME[%PASSWORD]" },
 572                 POPT_COMMON_SAMBA
 573                 POPT_COMMON_CONNECTION
 574                 POPT_COMMON_CREDENTIALS
 575                 POPT_COMMON_VERSION
 576                 { NULL }
 577         };
 578
 579         setlinebuf(stdout);
 580         seed = time(NULL);
 581
 582         pc = poptGetContext("locktest", argc, (const char **) argv, long_options,
 583                             POPT_CONTEXT_KEEP_FIRST);
 584
 585         poptSetOtherOptionHelp(pc, "<unc1> <unc2>");
 586
 587         lp_ctx = cmdline_lp_ctx;
 588         servers[0] = cli_credentials_init(talloc_autofree_context());
 589         servers[1] = cli_credentials_init(talloc_autofree_context());
 590         cli_credentials_guess(servers[0], lp_ctx);
 591         cli_credentials_guess(servers[1], lp_ctx);
 592
 593         while((opt = poptGetNextOpt(pc)) != -1) {
 594                 switch (opt) {
 595                 case OPT_UNCLIST:
 596                         lp_set_cmdline(cmdline_lp_ctx, "torture:unclist", poptGetOptArg(pc));
 597                         break;
 598                 case 'U':
 599                         if (username_count == 2) {
 600                                 usage(pc);
 601                                 exit(1);
 602                         }
 603                         cli_credentials_parse_string(servers[username_count], poptGetOptArg(pc), CRED_SPECIFIED);
 604                         username_count++;
 605                         break;
 606                 }
 607         }
 608
 609         argv_new = discard_const_p(char *, poptGetArgs(pc));
 610         argc_new = argc;
 611         for (i=0; i<argc; i++) {
 612                 if (argv_new[i] == NULL) {
 613                         argc_new = i;
 614                         break;
 615                 }
 616         }
 617
 618         if (!(argc_new >= 3)) {
 619                 usage(pc);
 620                 exit(1);
 621         }
 622
 623         setup_logging("locktest", DEBUG_STDOUT);
 624
 625         for (server=0;server<NSERVERS;server++) {
 626                 share[server] = argv_new[1+server];
 627                 all_string_sub(share[server],"/","\\",0);
 628         }
 629
 630         lp_ctx = cmdline_lp_ctx;
 631
 632         if (username_count == 0) {
 633                 usage(pc);
 634                 return -1;
 635         }
 636         if (username_count == 1) {
 637                 servers[1] = servers[0];
 638         }
 639
 640         ev = event_context_init(talloc_autofree_context());
 641
 642         gensec_init(lp_ctx);
 643
 644         DEBUG(0,("seed=%u base=%d range=%d min_length=%d\n",
 645                  seed, lock_base, lock_range, min_length));
 646         srandom(seed);
 647
 648         return test_locks(ev, lp_ctx, share);
 649 }
 650