source3/torture/locktest2.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    byte range lock tester - with local filesystem support
   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 2 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, write to the Free Software
  18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #define NO_SYSLOG
  22
  23 #include "includes.h"
  24
  25 static fstring password;
  26 static fstring username;
  27 static int got_pass;
  28 static int numops = 1000;
  29 static BOOL showall;
  30 static BOOL analyze;
  31 static BOOL hide_unlock_fails;
  32 static BOOL use_oplocks;
  33
  34 #define FILENAME "\\locktest.dat"
  35 #define LOCKRANGE 100
  36 #define LOCKBASE 0
  37
  38 /*
  39 #define LOCKBASE (0x40000000 - 50)
  40 */
  41
  42 #define READ_PCT 50
  43 #define LOCK_PCT 25
  44 #define UNLOCK_PCT 65
  45 #define RANGE_MULTIPLE 1
  46
  47 #define NSERVERS 2
  48 #define NCONNECTIONS 2
  49 #define NUMFSTYPES 2
  50 #define NFILES 2
  51 #define LOCK_TIMEOUT 0
  52
  53 #define FSTYPE_SMB 0
  54 #define FSTYPE_NFS 1
  55
  56 struct record {
  57         char r1, r2;
  58         char conn, f, fstype;
  59         unsigned start, len;
  60         char needed;
  61 };
  62
  63 static struct record *recorded;
  64
  65 static int try_open(struct cli_state *c, char *nfs, int fstype, const char *fname, int flags)
  66 {
  67         pstring path;
  68
  69         switch (fstype) {
  70         case FSTYPE_SMB:
  71                 return cli_open(c, fname, flags, DENY_NONE);
  72
  73         case FSTYPE_NFS:
  74                 slprintf(path, sizeof(path), "%s%s", nfs, fname);
  75                 pstring_sub(path,"\\", "/");
  76                 return open(path, flags, 0666);
  77         }
  78
  79         return -1;
  80 }
  81
  82 static BOOL try_close(struct cli_state *c, int fstype, int fd)
  83 {
  84         switch (fstype) {
  85         case FSTYPE_SMB:
  86                 return cli_close(c, fd);
  87
  88         case FSTYPE_NFS:
  89                 return close(fd) == 0;
  90         }
  91
  92         return False;
  93 }
  94
  95 static BOOL try_lock(struct cli_state *c, int fstype,
  96                      int fd, unsigned start, unsigned len,
  97                      enum brl_type op)
  98 {
  99         struct flock lock;
 100
 101         switch (fstype) {
 102         case FSTYPE_SMB:
 103                 return cli_lock(c, fd, start, len, LOCK_TIMEOUT, op);
 104
 105         case FSTYPE_NFS:
 106                 lock.l_type = (op==READ_LOCK) ? F_RDLCK:F_WRLCK;
 107                 lock.l_whence = SEEK_SET;
 108                 lock.l_start = start;
 109                 lock.l_len = len;
 110                 lock.l_pid = getpid();
 111                 return fcntl(fd,F_SETLK,&lock) == 0;
 112         }
 113
 114         return False;
 115 }
 116
 117 static BOOL try_unlock(struct cli_state *c, int fstype,
 118                        int fd, unsigned start, unsigned len)
 119 {
 120         struct flock lock;
 121
 122         switch (fstype) {
 123         case FSTYPE_SMB:
 124                 return cli_unlock(c, fd, start, len);
 125
 126         case FSTYPE_NFS:
 127                 lock.l_type = F_UNLCK;
 128                 lock.l_whence = SEEK_SET;
 129                 lock.l_start = start;
 130                 lock.l_len = len;
 131                 lock.l_pid = getpid();
 132                 return fcntl(fd,F_SETLK,&lock) == 0;
 133         }
 134
 135         return False;
 136 }
 137
 138 static void print_brl(SMB_DEV_T dev, SMB_INO_T ino, int pid,
 139                       enum brl_type lock_type,
 140                       br_off start, br_off size)
 141 {
 142         printf("%6d   %05x:%05x    %s  %.0f:%.0f(%.0f)\n",
 143                (int)pid, (int)dev, (int)ino,
 144                lock_type==READ_LOCK?"R":"W",
 145                (double)start, (double)start+size-1,(double)size);
 146
 147 }
 148
 149 /*****************************************************
 150 return a connection to a server
 151 *******************************************************/
 152 static struct cli_state *connect_one(char *share)
 153 {
 154         struct cli_state *c;
 155         char *server_n;
 156         fstring server;
 157         fstring myname;
 158         static int count;
 159         NTSTATUS nt_status;
 160
 161         fstrcpy(server,share+2);
 162         share = strchr_m(server,'\\');
 163         if (!share) return NULL;
 164         *share = 0;
 165         share++;
 166
 167         server_n = server;
 168
 169         if (!got_pass) {
 170                 char *pass = getpass("Password: ");
 171                 if (pass) {
 172                         fstrcpy(password, pass);
 173                 }
 174         }
 175
 176         slprintf(myname,sizeof(myname), "lock-%lu-%u", (unsigned long)getpid(), count++);
 177
 178         nt_status = cli_full_connection(&c, myname, server_n, NULL, 0, share, "?????",
 179                                         username, lp_workgroup(), password, 0,
 180                                         Undefined, NULL);
 181
 182         if (!NT_STATUS_IS_OK(nt_status)) {
 183                 DEBUG(0, ("cli_full_connection failed with error %s\n", nt_errstr(nt_status)));
 184                 return NULL;
 185         }
 186
 187         c->use_oplocks = use_oplocks;
 188
 189         return c;
 190 }
 191
 192
 193 static void reconnect(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 194                       char *nfs[NSERVERS],
 195                       int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 196                       char *share1, char *share2)
 197 {
 198         int server, conn, f, fstype;
 199         char *share[2];
 200         share[0] = share1;
 201         share[1] = share2;
 202
 203         fstype = FSTYPE_SMB;
 204
 205         for (server=0;server<NSERVERS;server++)
 206         for (conn=0;conn<NCONNECTIONS;conn++) {
 207                 if (cli[server][conn]) {
 208                         for (f=0;f<NFILES;f++) {
 209                                 cli_close(cli[server][conn], fnum[server][fstype][conn][f]);
 210                         }
 211                         cli_ulogoff(cli[server][conn]);
 212                         cli_shutdown(cli[server][conn]);
 213                 }
 214                 cli[server][conn] = connect_one(share[server]);
 215                 if (!cli[server][conn]) {
 216                         DEBUG(0,("Failed to connect to %s\n", share[server]));
 217                         exit(1);
 218                 }
 219         }
 220 }
 221
 222
 223
 224 static BOOL test_one(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 225                      char *nfs[NSERVERS],
 226                      int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 227                      struct record *rec)
 228 {
 229         unsigned conn = rec->conn;
 230         unsigned f = rec->f;
 231         unsigned fstype = rec->fstype;
 232         unsigned start = rec->start;
 233         unsigned len = rec->len;
 234         unsigned r1 = rec->r1;
 235         unsigned r2 = rec->r2;
 236         enum brl_type op;
 237         int server;
 238         BOOL ret[NSERVERS];
 239
 240         if (r1 < READ_PCT) {
 241                 op = READ_LOCK;
 242         } else {
 243                 op = WRITE_LOCK;
 244         }
 245
 246         if (r2 < LOCK_PCT) {
 247                 /* set a lock */
 248                 for (server=0;server<NSERVERS;server++) {
 249                         ret[server] = try_lock(cli[server][conn], fstype,
 250                                                fnum[server][fstype][conn][f],
 251                                                start, len, op);
 252                 }
 253                 if (showall || ret[0] != ret[1]) {
 254                         printf("lock   conn=%u fstype=%u f=%u range=%u:%u(%u) op=%s -> %u:%u\n",
 255                                conn, fstype, f,
 256                                start, start+len-1, len,
 257                                op==READ_LOCK?"READ_LOCK":"WRITE_LOCK",
 258                                ret[0], ret[1]);
 259                 }
 260                 if (showall) brl_forall(print_brl);
 261                 if (ret[0] != ret[1]) return False;
 262         } else if (r2 < LOCK_PCT+UNLOCK_PCT) {
 263                 /* unset a lock */
 264                 for (server=0;server<NSERVERS;server++) {
 265                         ret[server] = try_unlock(cli[server][conn], fstype,
 266                                                  fnum[server][fstype][conn][f],
 267                                                  start, len);
 268                 }
 269                 if (showall || (!hide_unlock_fails && (ret[0] != ret[1]))) {
 270                         printf("unlock conn=%u fstype=%u f=%u range=%u:%u(%u)       -> %u:%u\n",
 271                                conn, fstype, f,
 272                                start, start+len-1, len,
 273                                ret[0], ret[1]);
 274                 }
 275                 if (showall) brl_forall(print_brl);
 276                 if (!hide_unlock_fails && ret[0] != ret[1]) return False;
 277         } else {
 278                 /* reopen the file */
 279                 for (server=0;server<NSERVERS;server++) {
 280                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 281                         fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 282                                                                  O_RDWR|O_CREAT);
 283                         if (fnum[server][fstype][conn][f] == -1) {
 284                                 printf("failed to reopen on share1\n");
 285                                 return False;
 286                         }
 287                 }
 288                 if (showall) {
 289                         printf("reopen conn=%u fstype=%u f=%u\n",
 290                                conn, fstype, f);
 291                         brl_forall(print_brl);
 292                 }
 293         }
 294         return True;
 295 }
 296
 297 static void close_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 298                         char *nfs[NSERVERS],
 299                         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 300 {
 301         int server, conn, f, fstype;
 302
 303         for (server=0;server<NSERVERS;server++)
 304         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 305         for (conn=0;conn<NCONNECTIONS;conn++)
 306         for (f=0;f<NFILES;f++) {
 307                 if (fnum[server][fstype][conn][f] != -1) {
 308                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 309                         fnum[server][fstype][conn][f] = -1;
 310                 }
 311         }
 312         for (server=0;server<NSERVERS;server++) {
 313                 cli_unlink(cli[server][0], FILENAME);
 314         }
 315 }
 316
 317 static void open_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 318                        char *nfs[NSERVERS],
 319                        int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 320 {
 321         int server, fstype, conn, f;
 322
 323         for (server=0;server<NSERVERS;server++)
 324         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 325         for (conn=0;conn<NCONNECTIONS;conn++)
 326         for (f=0;f<NFILES;f++) {
 327                 fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 328                                                          O_RDWR|O_CREAT);
 329                 if (fnum[server][fstype][conn][f] == -1) {
 330                         fprintf(stderr,"Failed to open fnum[%u][%u][%u][%u]\n",
 331                                 server, fstype, conn, f);
 332                         exit(1);
 333                 }
 334         }
 335 }
 336
 337
 338 static int retest(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 339                   char *nfs[NSERVERS],
 340                   int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 341                   int n)
 342 {
 343         int i;
 344         printf("testing %u ...\n", n);
 345         for (i=0; i<n; i++) {
 346                 if (i && i % 100 == 0) {
 347                         printf("%u\n", i);
 348                 }
 349
 350                 if (recorded[i].needed &&
 351                     !test_one(cli, nfs, fnum, &recorded[i])) return i;
 352         }
 353         return n;
 354 }
 355
 356
 357 /* each server has two connections open to it. Each connection has two file
 358    descriptors open on the file - 8 file descriptors in total
 359
 360    we then do random locking ops in tamdem on the 4 fnums from each
 361    server and ensure that the results match
 362  */
 363 static void test_locks(char *share1, char *share2, char *nfspath1, char *nfspath2)
 364 {
 365         struct cli_state *cli[NSERVERS][NCONNECTIONS];
 366         char *nfs[NSERVERS];
 367         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES];
 368         int n, i, n1;
 369
 370         nfs[0] = nfspath1;
 371         nfs[1] = nfspath2;
 372
 373         ZERO_STRUCT(fnum);
 374         ZERO_STRUCT(cli);
 375
 376         recorded = (struct record *)malloc(sizeof(*recorded) * numops);
 377
 378         for (n=0; n<numops; n++) {
 379                 recorded[n].conn = random() % NCONNECTIONS;
 380                 recorded[n].fstype = random() % NUMFSTYPES;
 381                 recorded[n].f = random() % NFILES;
 382                 recorded[n].start = LOCKBASE + ((unsigned)random() % (LOCKRANGE-1));
 383                 recorded[n].len = 1 +
 384                         random() % (LOCKRANGE-(recorded[n].start-LOCKBASE));
 385                 recorded[n].start *= RANGE_MULTIPLE;
 386                 recorded[n].len *= RANGE_MULTIPLE;
 387                 recorded[n].r1 = random() % 100;
 388                 recorded[n].r2 = random() % 100;
 389                 recorded[n].needed = True;
 390         }
 391
 392         reconnect(cli, nfs, fnum, share1, share2);
 393         open_files(cli, nfs, fnum);
 394         n = retest(cli, nfs, fnum, numops);
 395
 396         if (n == numops || !analyze) return;
 397         n++;
 398
 399         while (1) {
 400                 n1 = n;
 401
 402                 close_files(cli, nfs, fnum);
 403                 reconnect(cli, nfs, fnum, share1, share2);
 404                 open_files(cli, nfs, fnum);
 405
 406                 for (i=0;i<n-1;i++) {
 407                         int m;
 408                         recorded[i].needed = False;
 409
 410                         close_files(cli, nfs, fnum);
 411                         open_files(cli, nfs, fnum);
 412
 413                         m = retest(cli, nfs, fnum, n);
 414                         if (m == n) {
 415                                 recorded[i].needed = True;
 416                         } else {
 417                                 if (i < m) {
 418                                         memmove(&recorded[i], &recorded[i+1],
 419                                                 (m-i)*sizeof(recorded[0]));
 420                                 }
 421                                 n = m;
 422                                 i--;
 423                         }
 424                 }
 425
 426                 if (n1 == n) break;
 427         }
 428
 429         close_files(cli, nfs, fnum);
 430         reconnect(cli, nfs, fnum, share1, share2);
 431         open_files(cli, nfs, fnum);
 432         showall = True;
 433         n1 = retest(cli, nfs, fnum, n);
 434         if (n1 != n-1) {
 435                 printf("ERROR - inconsistent result (%u %u)\n", n1, n);
 436         }
 437         close_files(cli, nfs, fnum);
 438
 439         for (i=0;i<n;i++) {
 440                 printf("{%u, %u, %u, %u, %u, %u, %u, %u},\n",
 441                        recorded[i].r1,
 442                        recorded[i].r2,
 443                        recorded[i].conn,
 444                        recorded[i].fstype,
 445                        recorded[i].f,
 446                        recorded[i].start,
 447                        recorded[i].len,
 448                        recorded[i].needed);
 449         }
 450 }
 451
 452
 453
 454 static void usage(void)
 455 {
 456         printf(
 457 "Usage:\n\
 458   locktest //server1/share1 //server2/share2 /path1 /path2 [options..]\n\
 459   options:\n\
 460         -U user%%pass\n\
 461         -s seed\n\
 462         -o numops\n\
 463         -u          hide unlock fails\n\
 464         -a          (show all ops)\n\
 465         -O          use oplocks\n\
 466 ");
 467 }
 468
 469 /****************************************************************************
 470   main program
 471 ****************************************************************************/
 472  int main(int argc,char *argv[])
 473 {
 474         char *share1, *share2, *nfspath1, *nfspath2;
 475         extern char *optarg;
 476         extern int optind;
 477         int opt;
 478         char *p;
 479         int seed;
 480
 481         setlinebuf(stdout);
 482
 483         dbf = x_stderr;
 484
 485         if (argc < 5 || argv[1][0] == '-') {
 486                 usage();
 487                 exit(1);
 488         }
 489
 490         share1 = argv[1];
 491         share2 = argv[2];
 492         nfspath1 = argv[3];
 493         nfspath2 = argv[4];
 494
 495         all_string_sub(share1,"/","\\",0);
 496         all_string_sub(share2,"/","\\",0);
 497
 498         setup_logging(argv[0],True);
 499
 500         argc -= 4;
 501         argv += 4;
 502
 503         lp_load(dyn_CONFIGFILE,True,False,False);
 504         load_interfaces();
 505
 506         if (getenv("USER")) {
 507                 fstrcpy(username,getenv("USER"));
 508         }
 509
 510         seed = time(NULL);
 511
 512         while ((opt = getopt(argc, argv, "U:s:ho:aAW:O")) != EOF) {
 513                 switch (opt) {
 514                 case 'U':
 515                         fstrcpy(username,optarg);
 516                         p = strchr_m(username,'%');
 517                         if (p) {
 518                                 *p = 0;
 519                                 fstrcpy(password, p+1);
 520                                 got_pass = 1;
 521                         }
 522                         break;
 523                 case 's':
 524                         seed = atoi(optarg);
 525                         break;
 526                 case 'u':
 527                         hide_unlock_fails = True;
 528                         break;
 529                 case 'o':
 530                         numops = atoi(optarg);
 531                         break;
 532                 case 'O':
 533                         use_oplocks = True;
 534                         break;
 535                 case 'a':
 536                         showall = True;
 537                         break;
 538                 case 'A':
 539                         analyze = True;
 540                         break;
 541                 case 'h':
 542                         usage();
 543                         exit(1);
 544                 default:
 545                         printf("Unknown option %c (%d)\n", (char)opt, opt);
 546                         exit(1);
 547                 }
 548         }
 549
 550         argc -= optind;
 551         argv += optind;
 552
 553         DEBUG(0,("seed=%u\n", seed));
 554         srandom(seed);
 555
 556         locking_init(1);
 557         test_locks(share1, share2, nfspath1, nfspath2);
 558
 559         return(0);
 560 }