source3/torture/locktest.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 2.0
   4    randomised byte range lock tester
   5    Copyright (C) Andrew Tridgell 1999
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22 #define NO_SYSLOG
  23
  24 #include "includes.h"
  25
  26 static fstring password;
  27 static fstring username;
  28 static int got_pass;
  29 static int numops = 1000;
  30 static BOOL showall;
  31 static BOOL analyze;
  32 static BOOL hide_unlock_fails;
  33 static BOOL use_oplocks;
  34
  35 #define FILENAME "\\locktest.dat"
  36 #define LOCKRANGE 5
  37 #define LOCKBASE 0
  38 #define MINLENGTH 0
  39
  40 /*
  41 #define LOCKBASE (0x40000000 - 50)
  42 */
  43
  44 #define READ_PCT 50
  45 #define LOCK_PCT 35
  46 #define UNLOCK_PCT 55
  47 #define RANGE_MULTIPLE 1
  48 #define NSERVERS 2
  49 #define NCONNECTIONS 2
  50 #define NFILES 2
  51 #define LOCK_TIMEOUT 0
  52
  53 #define NASTY_POSIX_LOCK_HACK 0
  54
  55
  56 struct record {
  57         char r1, r2;
  58         char conn, f;
  59         SMB_BIG_UINT start, len;
  60         char needed;
  61 };
  62
  63 #define PRESETS 0
  64
  65 #if PRESETS
  66 static struct record preset[] = {
  67 {36,  5, 0, 0, 0,  8, 1},
  68 { 2,  6, 0, 1, 0,  1, 1},
  69 {53, 92, 0, 0, 0,  0, 1},
  70 {99, 11, 0, 0, 7,  1, 1},
  71 };
  72 #endif
  73
  74 static struct record *recorded;
  75
  76 static void print_brl(SMB_DEV_T dev, SMB_INO_T ino, int pid,
  77                       enum brl_type lock_type,
  78                       br_off start, br_off size)
  79 {
  80 #if NASTY_POSIX_LOCK_HACK
  81         {
  82                 pstring cmd;
  83                 static SMB_INO_T lastino;
  84
  85                 if (lastino != ino) {
  86                         slprintf(cmd, sizeof(cmd),
  87                                  "egrep POSIX.*%u /proc/locks", (int)ino);
  88                         system(cmd);
  89                 }
  90                 lastino = ino;
  91         }
  92 #endif
  93
  94         printf("%6d   %05x:%05x    %s  %.0f:%.0f(%.0f)\n",
  95                (int)pid, (int)dev, (int)ino,
  96                lock_type==READ_LOCK?"R":"W",
  97                (double)start, (double)start+size-1,(double)size);
  98
  99 }
 100
 101
 102 static void show_locks(void)
 103 {
 104         brl_forall(print_brl);
 105         /* system("cat /proc/locks"); */
 106 }
 107
 108
 109 /*****************************************************
 110 return a connection to a server
 111 *******************************************************/
 112 struct cli_state *connect_one(char *share)
 113 {
 114         struct cli_state *c;
 115         struct nmb_name called, calling;
 116         char *server_n;
 117         fstring server;
 118         struct in_addr ip;
 119         extern struct in_addr ipzero;
 120         fstring myname;
 121         static int count;
 122
 123         fstrcpy(server,share+2);
 124         share = strchr_m(server,'\\');
 125         if (!share) return NULL;
 126         *share = 0;
 127         share++;
 128
 129         server_n = server;
 130
 131         ip = ipzero;
 132
 133         slprintf(myname,sizeof(myname), "lock-%u-%u", getpid(), count++);
 134
 135         make_nmb_name(&calling, myname, 0x0);
 136         make_nmb_name(&called , server, 0x20);
 137
 138  again:
 139         ip = ipzero;
 140
 141         /* have to open a new connection */
 142         if (!(c=cli_initialise(NULL)) || (cli_set_port(c, 139) == 0) ||
 143             !cli_connect(c, server_n, &ip)) {
 144                 DEBUG(0,("Connection to %s failed\n", server_n));
 145                 return NULL;
 146         }
 147
 148         if (!cli_session_request(c, &calling, &called)) {
 149                 DEBUG(0,("session request to %s failed\n", called.name));
 150                 cli_shutdown(c);
 151                 if (strcmp(called.name, "*SMBSERVER")) {
 152                         make_nmb_name(&called , "*SMBSERVER", 0x20);
 153                         goto again;
 154                 }
 155                 return NULL;
 156         }
 157
 158         DEBUG(4,(" session request ok\n"));
 159
 160         if (!cli_negprot(c)) {
 161                 DEBUG(0,("protocol negotiation failed\n"));
 162                 cli_shutdown(c);
 163                 return NULL;
 164         }
 165
 166         if (!got_pass) {
 167                 char *pass = getpass("Password: ");
 168                 if (pass) {
 169                         pstrcpy(password, pass);
 170                 }
 171         }
 172
 173         if (!cli_session_setup(c, username,
 174                                password, strlen(password),
 175                                password, strlen(password),
 176                                lp_workgroup())) {
 177                 DEBUG(0,("session setup failed: %s\n", cli_errstr(c)));
 178                 return NULL;
 179         }
 180
 181         /*
 182          * These next two lines are needed to emulate
 183          * old client behaviour for people who have
 184          * scripts based on client output.
 185          * QUESTION ? Do we want to have a 'client compatibility
 186          * mode to turn these on/off ? JRA.
 187          */
 188
 189         if (*c->server_domain || *c->server_os || *c->server_type)
 190                 DEBUG(1,("Domain=[%s] OS=[%s] Server=[%s]\n",
 191                         c->server_domain,c->server_os,c->server_type));
 192
 193         DEBUG(4,(" session setup ok\n"));
 194
 195         if (!cli_send_tconX(c, share, "?????",
 196                             password, strlen(password)+1)) {
 197                 DEBUG(0,("tree connect failed: %s\n", cli_errstr(c)));
 198                 cli_shutdown(c);
 199                 return NULL;
 200         }
 201
 202         DEBUG(4,(" tconx ok\n"));
 203
 204         c->use_oplocks = use_oplocks;
 205
 206         return c;
 207 }
 208
 209
 210 static void reconnect(struct cli_state *cli[NSERVERS][NCONNECTIONS], int fnum[NSERVERS][NCONNECTIONS][NFILES],
 211                       char *share[NSERVERS])
 212 {
 213         int server, conn, f;
 214
 215         for (server=0;server<NSERVERS;server++)
 216         for (conn=0;conn<NCONNECTIONS;conn++) {
 217                 if (cli[server][conn]) {
 218                         for (f=0;f<NFILES;f++) {
 219                                 cli_close(cli[server][conn], fnum[server][conn][f]);
 220                         }
 221                         cli_ulogoff(cli[server][conn]);
 222                         cli_shutdown(cli[server][conn]);
 223                         free(cli[server][conn]);
 224                         cli[server][conn] = NULL;
 225                 }
 226                 cli[server][conn] = connect_one(share[server]);
 227                 if (!cli[server][conn]) {
 228                         DEBUG(0,("Failed to connect to %s\n", share[server]));
 229                         exit(1);
 230                 }
 231         }
 232 }
 233
 234
 235
 236 static BOOL test_one(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 237                      int fnum[NSERVERS][NCONNECTIONS][NFILES],
 238                      struct record *rec)
 239 {
 240         unsigned conn = rec->conn;
 241         unsigned f = rec->f;
 242         SMB_BIG_UINT start = rec->start;
 243         SMB_BIG_UINT len = rec->len;
 244         unsigned r1 = rec->r1;
 245         unsigned r2 = rec->r2;
 246         unsigned op;
 247         int server;
 248         BOOL ret[NSERVERS];
 249
 250         if (r1 < READ_PCT) {
 251                 op = READ_LOCK;
 252         } else {
 253                 op = WRITE_LOCK;
 254         }
 255
 256         if (r2 < LOCK_PCT) {
 257                 /* set a lock */
 258                 for (server=0;server<NSERVERS;server++) {
 259                         ret[server] = cli_lock64(cli[server][conn],
 260                                                  fnum[server][conn][f],
 261                                                  start, len, LOCK_TIMEOUT, op);
 262                 }
 263                 if (showall || ret[0] != ret[1]) {
 264                         printf("lock   conn=%u f=%u range=%.0f(%.0f) op=%s -> %u:%u\n",
 265                                conn, f,
 266                                (double)start, (double)len,
 267                                op==READ_LOCK?"READ_LOCK":"WRITE_LOCK",
 268                                ret[0], ret[1]);
 269                 }
 270                 if (showall || ret[0] != ret[1]) show_locks();
 271                 if (ret[0] != ret[1]) return False;
 272         } else if (r2 < LOCK_PCT+UNLOCK_PCT) {
 273                 /* unset a lock */
 274                 for (server=0;server<NSERVERS;server++) {
 275                         ret[server] = cli_unlock64(cli[server][conn],
 276                                                    fnum[server][conn][f],
 277                                                    start, len);
 278                 }
 279                 if (showall || (!hide_unlock_fails && (ret[0] != ret[1]))) {
 280                         printf("unlock conn=%u f=%u range=%.0f(%.0f)       -> %u:%u\n",
 281                                conn, f,
 282                                (double)start, (double)len,
 283                                ret[0], ret[1]);
 284                 }
 285                 if (showall || ret[0] != ret[1]) show_locks();
 286                 if (!hide_unlock_fails && ret[0] != ret[1]) return False;
 287         } else {
 288                 /* reopen the file */
 289                 for (server=0;server<NSERVERS;server++) {
 290                         cli_close(cli[server][conn], fnum[server][conn][f]);
 291                 }
 292                 for (server=0;server<NSERVERS;server++) {
 293                         fnum[server][conn][f] = cli_open(cli[server][conn], FILENAME,
 294                                                          O_RDWR|O_CREAT,
 295                                                          DENY_NONE);
 296                         if (fnum[server][conn][f] == -1) {
 297                                 printf("failed to reopen on share%d\n", server);
 298                                 return False;
 299                         }
 300                 }
 301                 if (showall) {
 302                         printf("reopen conn=%u f=%u\n",
 303                                conn, f);
 304                         show_locks();
 305                 }
 306         }
 307         return True;
 308 }
 309
 310 static void close_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 311                         int fnum[NSERVERS][NCONNECTIONS][NFILES])
 312 {
 313         int server, conn, f;
 314
 315         for (server=0;server<NSERVERS;server++)
 316         for (conn=0;conn<NCONNECTIONS;conn++)
 317         for (f=0;f<NFILES;f++) {
 318                 if (fnum[server][conn][f] != -1) {
 319                         cli_close(cli[server][conn], fnum[server][conn][f]);
 320                         fnum[server][conn][f] = -1;
 321                 }
 322         }
 323         for (server=0;server<NSERVERS;server++) {
 324                 cli_unlink(cli[server][0], FILENAME);
 325         }
 326 }
 327
 328 static void open_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 329                        int fnum[NSERVERS][NCONNECTIONS][NFILES])
 330 {
 331         int server, conn, f;
 332
 333         for (server=0;server<NSERVERS;server++)
 334         for (conn=0;conn<NCONNECTIONS;conn++)
 335         for (f=0;f<NFILES;f++) {
 336                 fnum[server][conn][f] = cli_open(cli[server][conn], FILENAME,
 337                                                  O_RDWR|O_CREAT,
 338                                                  DENY_NONE);
 339                 if (fnum[server][conn][f] == -1) {
 340                         fprintf(stderr,"Failed to open fnum[%u][%u][%u]\n",
 341                                 server, conn, f);
 342                         exit(1);
 343                 }
 344         }
 345 }
 346
 347
 348 static int retest(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 349                    int fnum[NSERVERS][NCONNECTIONS][NFILES],
 350                    int n)
 351 {
 352         int i;
 353         printf("testing %u ...\n", n);
 354         for (i=0; i<n; i++) {
 355                 if (i && i % 100 == 0) {
 356                         printf("%u\n", i);
 357                 }
 358
 359                 if (recorded[i].needed &&
 360                     !test_one(cli, fnum, &recorded[i])) return i;
 361         }
 362         return n;
 363 }
 364
 365
 366 /* each server has two connections open to it. Each connection has two file
 367    descriptors open on the file - 8 file descriptors in total
 368
 369    we then do random locking ops in tamdem on the 4 fnums from each
 370    server and ensure that the results match
 371  */
 372 static void test_locks(char *share[NSERVERS])
 373 {
 374         struct cli_state *cli[NSERVERS][NCONNECTIONS];
 375         int fnum[NSERVERS][NCONNECTIONS][NFILES];
 376         int n, i, n1, skip;
 377
 378         ZERO_STRUCT(fnum);
 379         ZERO_STRUCT(cli);
 380
 381         recorded = (struct record *)malloc(sizeof(*recorded) * numops);
 382
 383         for (n=0; n<numops; n++) {
 384 #if PRESETS
 385                 if (n < sizeof(preset) / sizeof(preset[0])) {
 386                         recorded[n] = preset[n];
 387                 } else {
 388 #endif
 389                         recorded[n].conn = random() % NCONNECTIONS;
 390                         recorded[n].f = random() % NFILES;
 391                         recorded[n].start = LOCKBASE + ((unsigned)random() % (LOCKRANGE-1));
 392                         recorded[n].len =  MINLENGTH +
 393                                 random() % (LOCKRANGE-(recorded[n].start-LOCKBASE));
 394                         recorded[n].start *= RANGE_MULTIPLE;
 395                         recorded[n].len *= RANGE_MULTIPLE;
 396                         recorded[n].r1 = random() % 100;
 397                         recorded[n].r2 = random() % 100;
 398                         recorded[n].needed = True;
 399 #if PRESETS
 400                 }
 401 #endif
 402         }
 403
 404         reconnect(cli, fnum, share);
 405         open_files(cli, fnum);
 406         n = retest(cli, fnum, numops);
 407
 408         if (n == numops || !analyze) return;
 409         n++;
 410
 411         skip = n/2;
 412
 413         while (1) {
 414                 n1 = n;
 415
 416                 close_files(cli, fnum);
 417                 reconnect(cli, fnum, share);
 418                 open_files(cli, fnum);
 419
 420                 for (i=0;i<n-skip;i++) {
 421                         int m, j;
 422                         for (j=i;j<i+skip;j++) {
 423                                 recorded[j].needed = False;
 424                         }
 425
 426                         close_files(cli, fnum);
 427                         open_files(cli, fnum);
 428
 429                         m = retest(cli, fnum, n);
 430                         if (m == n) {
 431                                 for (j=i;j<i+skip;j++) {
 432                                         recorded[j].needed = True;
 433                                 }
 434                         } else {
 435                                 if (i+(skip-1) < m) {
 436                                         memmove(&recorded[i], &recorded[i+skip],
 437                                                 (m-(i+skip-1))*sizeof(recorded[0]));
 438                                 }
 439                                 n = m-(skip-1);
 440                                 i--;
 441                         }
 442                 }
 443
 444                 if (skip > 1) {
 445                         skip = skip/2;
 446                         printf("skip=%d\n", skip);
 447                         continue;
 448                 }
 449
 450                 if (n1 == n) break;
 451         }
 452
 453         close_files(cli, fnum);
 454         reconnect(cli, fnum, share);
 455         open_files(cli, fnum);
 456         showall = True;
 457         n1 = retest(cli, fnum, n);
 458         if (n1 != n-1) {
 459                 printf("ERROR - inconsistent result (%u %u)\n", n1, n);
 460         }
 461         close_files(cli, fnum);
 462
 463         for (i=0;i<n;i++) {
 464                 printf("{%u, %u, %u, %u, %.0f, %.0f, %u},\n",
 465                        recorded[i].r1,
 466                        recorded[i].r2,
 467                        recorded[i].conn,
 468                        recorded[i].f,
 469                        (double)recorded[i].start,
 470                        (double)recorded[i].len,
 471                        recorded[i].needed);
 472         }
 473 }
 474
 475
 476
 477 static void usage(void)
 478 {
 479         printf(
 480 "Usage:\n\
 481   locktest //server1/share1 //server2/share2 [options..]\n\
 482   options:\n\
 483         -U user%%pass\n\
 484         -s seed\n\
 485         -o numops\n\
 486         -u          hide unlock fails\n\
 487         -a          (show all ops)\n\
 488         -O          use oplocks\n\
 489 ");
 490 }
 491
 492 /****************************************************************************
 493   main program
 494 ****************************************************************************/
 495  int main(int argc,char *argv[])
 496 {
 497         char *share[NSERVERS];
 498         extern char *optarg;
 499         extern int optind;
 500         extern FILE *dbf;
 501         int opt;
 502         char *p;
 503         int seed, server;
 504         static pstring servicesf = CONFIGFILE;
 505
 506         setlinebuf(stdout);
 507
 508         dbf = stderr;
 509
 510         if (argc < 3 || argv[1][0] == '-') {
 511                 usage();
 512                 exit(1);
 513         }
 514
 515         setup_logging(argv[0],True);
 516
 517         for (server=0;server<NSERVERS;server++) {
 518                 share[server] = argv[1+server];
 519                 all_string_sub(share[server],"/","\\",0);
 520         }
 521
 522         argc -= NSERVERS;
 523         argv += NSERVERS;
 524
 525         TimeInit();
 526
 527         lp_load(servicesf,True,False,False);
 528         load_interfaces();
 529
 530         if (getenv("USER")) {
 531                 pstrcpy(username,getenv("USER"));
 532         }
 533
 534         seed = time(NULL);
 535
 536         while ((opt = getopt(argc, argv, "U:s:ho:aAW:O")) != EOF) {
 537                 switch (opt) {
 538                 case 'U':
 539                         pstrcpy(username,optarg);
 540                         p = strchr_m(username,'%');
 541                         if (p) {
 542                                 *p = 0;
 543                                 pstrcpy(password, p+1);
 544                                 got_pass = 1;
 545                         }
 546                         break;
 547                 case 's':
 548                         seed = atoi(optarg);
 549                         break;
 550                 case 'u':
 551                         hide_unlock_fails = True;
 552                         break;
 553                 case 'o':
 554                         numops = atoi(optarg);
 555                         break;
 556                 case 'O':
 557                         use_oplocks = True;
 558                         break;
 559                 case 'a':
 560                         showall = True;
 561                         break;
 562                 case 'A':
 563                         analyze = True;
 564                         break;
 565                 case 'h':
 566                         usage();
 567                         exit(1);
 568                 default:
 569                         printf("Unknown option %c (%d)\n", (char)opt, opt);
 570                         exit(1);
 571                 }
 572         }
 573
 574         argc -= optind;
 575         argv += optind;
 576
 577         DEBUG(0,("seed=%u\n", seed));
 578         srandom(seed);
 579
 580         locking_init(1);
 581         test_locks(share);
 582
 583         return(0);
 584 }