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