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 #include "module_dummy.h"
  26
  27 static fstring password;
  28 static fstring username;
  29 static int got_pass;
  30 static int numops = 1000;
  31 static BOOL showall;
  32 static BOOL analyze;
  33 static BOOL hide_unlock_fails;
  34 static BOOL use_oplocks;
  35
  36 #define FILENAME "\\locktest.dat"
  37 #define LOCKRANGE 100
  38 #define LOCKBASE 0
  39
  40 /*
  41 #define LOCKBASE (0x40000000 - 50)
  42 */
  43
  44 #define READ_PCT 50
  45 #define LOCK_PCT 25
  46 #define UNLOCK_PCT 65
  47 #define RANGE_MULTIPLE 1
  48
  49 #define NSERVERS 2
  50 #define NCONNECTIONS 2
  51 #define NUMFSTYPES 2
  52 #define NFILES 2
  53 #define LOCK_TIMEOUT 0
  54
  55 #define FSTYPE_SMB 0
  56 #define FSTYPE_NFS 1
  57
  58 struct record {
  59         char r1, r2;
  60         char conn, f, fstype;
  61         unsigned start, len;
  62         char needed;
  63 };
  64
  65 static struct record *recorded;
  66
  67 static int try_open(struct cli_state *c, char *nfs, int fstype, const char *fname, int flags)
  68 {
  69         pstring path;
  70
  71         switch (fstype) {
  72         case FSTYPE_SMB:
  73                 return cli_open(c, fname, flags, DENY_NONE);
  74
  75         case FSTYPE_NFS:
  76                 slprintf(path, sizeof(path), "%s%s", nfs, fname);
  77                 pstring_sub(path,"\\", "/");
  78                 return open(path, flags, 0666);
  79         }
  80
  81         return -1;
  82 }
  83
  84 static BOOL try_close(struct cli_state *c, int fstype, int fd)
  85 {
  86         switch (fstype) {
  87         case FSTYPE_SMB:
  88                 return cli_close(c, fd);
  89
  90         case FSTYPE_NFS:
  91                 return close(fd) == 0;
  92         }
  93
  94         return False;
  95 }
  96
  97 static BOOL try_lock(struct cli_state *c, int fstype,
  98                      int fd, unsigned start, unsigned len,
  99                      enum brl_type op)
 100 {
 101         struct flock lock;
 102
 103         switch (fstype) {
 104         case FSTYPE_SMB:
 105                 return cli_lock(c, fd, start, len, LOCK_TIMEOUT, op);
 106
 107         case FSTYPE_NFS:
 108                 lock.l_type = (op==READ_LOCK) ? F_RDLCK:F_WRLCK;
 109                 lock.l_whence = SEEK_SET;
 110                 lock.l_start = start;
 111                 lock.l_len = len;
 112                 lock.l_pid = getpid();
 113                 return fcntl(fd,F_SETLK,&lock) == 0;
 114         }
 115
 116         return False;
 117 }
 118
 119 static BOOL try_unlock(struct cli_state *c, int fstype,
 120                        int fd, unsigned start, unsigned len)
 121 {
 122         struct flock lock;
 123
 124         switch (fstype) {
 125         case FSTYPE_SMB:
 126                 return cli_unlock(c, fd, start, len);
 127
 128         case FSTYPE_NFS:
 129                 lock.l_type = F_UNLCK;
 130                 lock.l_whence = SEEK_SET;
 131                 lock.l_start = start;
 132                 lock.l_len = len;
 133                 lock.l_pid = getpid();
 134                 return fcntl(fd,F_SETLK,&lock) == 0;
 135         }
 136
 137         return False;
 138 }
 139
 140 static void print_brl(SMB_DEV_T dev, SMB_INO_T ino, int pid,
 141                       enum brl_type lock_type,
 142                       br_off start, br_off size)
 143 {
 144         printf("%6d   %05x:%05x    %s  %.0f:%.0f(%.0f)\n",
 145                (int)pid, (int)dev, (int)ino,
 146                lock_type==READ_LOCK?"R":"W",
 147                (double)start, (double)start+size-1,(double)size);
 148
 149 }
 150
 151 /*****************************************************
 152 return a connection to a server
 153 *******************************************************/
 154 static struct cli_state *connect_one(char *share)
 155 {
 156         struct cli_state *c;
 157         char *server_n;
 158         fstring server;
 159         fstring myname;
 160         static int count;
 161         NTSTATUS nt_status;
 162
 163         fstrcpy(server,share+2);
 164         share = strchr_m(server,'\\');
 165         if (!share) return NULL;
 166         *share = 0;
 167         share++;
 168
 169         server_n = server;
 170
 171         if (!got_pass) {
 172                 char *pass = getpass("Password: ");
 173                 if (pass) {
 174                         fstrcpy(password, pass);
 175                 }
 176         }
 177
 178         slprintf(myname,sizeof(myname), "lock-%u-%u", getpid(), count++);
 179
 180         nt_status = cli_full_connection(&c, myname, server_n, NULL, 0, share, "?????",
 181                                         username, lp_workgroup(), password, 0,
 182                                         NULL);
 183
 184         if (!NT_STATUS_IS_OK(nt_status)) {
 185                 DEBUG(0, ("cli_full_connection failed with error %s\n", nt_errstr(nt_status)));
 186                 return NULL;
 187         }
 188
 189         c->use_oplocks = use_oplocks;
 190
 191         return c;
 192 }
 193
 194
 195 static void reconnect(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 196                       char *nfs[NSERVERS],
 197                       int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 198                       char *share1, char *share2)
 199 {
 200         int server, conn, f, fstype;
 201         char *share[2];
 202         share[0] = share1;
 203         share[1] = share2;
 204
 205         fstype = FSTYPE_SMB;
 206
 207         for (server=0;server<NSERVERS;server++)
 208         for (conn=0;conn<NCONNECTIONS;conn++) {
 209                 if (cli[server][conn]) {
 210                         for (f=0;f<NFILES;f++) {
 211                                 cli_close(cli[server][conn], fnum[server][fstype][conn][f]);
 212                         }
 213                         cli_ulogoff(cli[server][conn]);
 214                         cli_shutdown(cli[server][conn]);
 215                 }
 216                 cli[server][conn] = connect_one(share[server]);
 217                 if (!cli[server][conn]) {
 218                         DEBUG(0,("Failed to connect to %s\n", share[server]));
 219                         exit(1);
 220                 }
 221         }
 222 }
 223
 224
 225
 226 static BOOL test_one(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 227                      char *nfs[NSERVERS],
 228                      int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 229                      struct record *rec)
 230 {
 231         unsigned conn = rec->conn;
 232         unsigned f = rec->f;
 233         unsigned fstype = rec->fstype;
 234         unsigned start = rec->start;
 235         unsigned len = rec->len;
 236         unsigned r1 = rec->r1;
 237         unsigned r2 = rec->r2;
 238         enum brl_type op;
 239         int server;
 240         BOOL ret[NSERVERS];
 241
 242         if (r1 < READ_PCT) {
 243                 op = READ_LOCK;
 244         } else {
 245                 op = WRITE_LOCK;
 246         }
 247
 248         if (r2 < LOCK_PCT) {
 249                 /* set a lock */
 250                 for (server=0;server<NSERVERS;server++) {
 251                         ret[server] = try_lock(cli[server][conn], fstype,
 252                                                fnum[server][fstype][conn][f],
 253                                                start, len, op);
 254                 }
 255                 if (showall || ret[0] != ret[1]) {
 256                         printf("lock   conn=%u fstype=%u f=%u range=%u:%u(%u) op=%s -> %u:%u\n",
 257                                conn, fstype, f,
 258                                start, start+len-1, len,
 259                                op==READ_LOCK?"READ_LOCK":"WRITE_LOCK",
 260                                ret[0], ret[1]);
 261                 }
 262                 if (showall) brl_forall(print_brl);
 263                 if (ret[0] != ret[1]) return False;
 264         } else if (r2 < LOCK_PCT+UNLOCK_PCT) {
 265                 /* unset a lock */
 266                 for (server=0;server<NSERVERS;server++) {
 267                         ret[server] = try_unlock(cli[server][conn], fstype,
 268                                                  fnum[server][fstype][conn][f],
 269                                                  start, len);
 270                 }
 271                 if (showall || (!hide_unlock_fails && (ret[0] != ret[1]))) {
 272                         printf("unlock conn=%u fstype=%u f=%u range=%u:%u(%u)       -> %u:%u\n",
 273                                conn, fstype, f,
 274                                start, start+len-1, len,
 275                                ret[0], ret[1]);
 276                 }
 277                 if (showall) brl_forall(print_brl);
 278                 if (!hide_unlock_fails && ret[0] != ret[1]) return False;
 279         } else {
 280                 /* reopen the file */
 281                 for (server=0;server<NSERVERS;server++) {
 282                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 283                         fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 284                                                                  O_RDWR|O_CREAT);
 285                         if (fnum[server][fstype][conn][f] == -1) {
 286                                 printf("failed to reopen on share1\n");
 287                                 return False;
 288                         }
 289                 }
 290                 if (showall) {
 291                         printf("reopen conn=%u fstype=%u f=%u\n",
 292                                conn, fstype, f);
 293                         brl_forall(print_brl);
 294                 }
 295         }
 296         return True;
 297 }
 298
 299 static void close_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 300                         char *nfs[NSERVERS],
 301                         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 302 {
 303         int server, conn, f, fstype;
 304
 305         for (server=0;server<NSERVERS;server++)
 306         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 307         for (conn=0;conn<NCONNECTIONS;conn++)
 308         for (f=0;f<NFILES;f++) {
 309                 if (fnum[server][fstype][conn][f] != -1) {
 310                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 311                         fnum[server][fstype][conn][f] = -1;
 312                 }
 313         }
 314         for (server=0;server<NSERVERS;server++) {
 315                 cli_unlink(cli[server][0], FILENAME);
 316         }
 317 }
 318
 319 static void open_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 320                        char *nfs[NSERVERS],
 321                        int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 322 {
 323         int server, fstype, conn, f;
 324
 325         for (server=0;server<NSERVERS;server++)
 326         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 327         for (conn=0;conn<NCONNECTIONS;conn++)
 328         for (f=0;f<NFILES;f++) {
 329                 fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 330                                                          O_RDWR|O_CREAT);
 331                 if (fnum[server][fstype][conn][f] == -1) {
 332                         fprintf(stderr,"Failed to open fnum[%u][%u][%u][%u]\n",
 333                                 server, fstype, conn, f);
 334                         exit(1);
 335                 }
 336         }
 337 }
 338
 339
 340 static int retest(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 341                   char *nfs[NSERVERS],
 342                   int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 343                   int n)
 344 {
 345         int i;
 346         printf("testing %u ...\n", n);
 347         for (i=0; i<n; i++) {
 348                 if (i && i % 100 == 0) {
 349                         printf("%u\n", i);
 350                 }
 351
 352                 if (recorded[i].needed &&
 353                     !test_one(cli, nfs, fnum, &recorded[i])) return i;
 354         }
 355         return n;
 356 }
 357
 358
 359 /* each server has two connections open to it. Each connection has two file
 360    descriptors open on the file - 8 file descriptors in total
 361
 362    we then do random locking ops in tamdem on the 4 fnums from each
 363    server and ensure that the results match
 364  */
 365 static void test_locks(char *share1, char *share2, char *nfspath1, char *nfspath2)
 366 {
 367         struct cli_state *cli[NSERVERS][NCONNECTIONS];
 368         char *nfs[NSERVERS];
 369         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES];
 370         int n, i, n1;
 371
 372         nfs[0] = nfspath1;
 373         nfs[1] = nfspath2;
 374
 375         ZERO_STRUCT(fnum);
 376         ZERO_STRUCT(cli);
 377
 378         recorded = (struct record *)malloc(sizeof(*recorded) * numops);
 379
 380         for (n=0; n<numops; n++) {
 381                 recorded[n].conn = random() % NCONNECTIONS;
 382                 recorded[n].fstype = random() % NUMFSTYPES;
 383                 recorded[n].f = random() % NFILES;
 384                 recorded[n].start = LOCKBASE + ((unsigned)random() % (LOCKRANGE-1));
 385                 recorded[n].len = 1 +
 386                         random() % (LOCKRANGE-(recorded[n].start-LOCKBASE));
 387                 recorded[n].start *= RANGE_MULTIPLE;
 388                 recorded[n].len *= RANGE_MULTIPLE;
 389                 recorded[n].r1 = random() % 100;
 390                 recorded[n].r2 = random() % 100;
 391                 recorded[n].needed = True;
 392         }
 393
 394         reconnect(cli, nfs, fnum, share1, share2);
 395         open_files(cli, nfs, fnum);
 396         n = retest(cli, nfs, fnum, numops);
 397
 398         if (n == numops || !analyze) return;
 399         n++;
 400
 401         while (1) {
 402                 n1 = n;
 403
 404                 close_files(cli, nfs, fnum);
 405                 reconnect(cli, nfs, fnum, share1, share2);
 406                 open_files(cli, nfs, fnum);
 407
 408                 for (i=0;i<n-1;i++) {
 409                         int m;
 410                         recorded[i].needed = False;
 411
 412                         close_files(cli, nfs, fnum);
 413                         open_files(cli, nfs, fnum);
 414
 415                         m = retest(cli, nfs, fnum, n);
 416                         if (m == n) {
 417                                 recorded[i].needed = True;
 418                         } else {
 419                                 if (i < m) {
 420                                         memmove(&recorded[i], &recorded[i+1],
 421                                                 (m-i)*sizeof(recorded[0]));
 422                                 }
 423                                 n = m;
 424                                 i--;
 425                         }
 426                 }
 427
 428                 if (n1 == n) break;
 429         }
 430
 431         close_files(cli, nfs, fnum);
 432         reconnect(cli, nfs, fnum, share1, share2);
 433         open_files(cli, nfs, fnum);
 434         showall = True;
 435         n1 = retest(cli, nfs, fnum, n);
 436         if (n1 != n-1) {
 437                 printf("ERROR - inconsistent result (%u %u)\n", n1, n);
 438         }
 439         close_files(cli, nfs, fnum);
 440
 441         for (i=0;i<n;i++) {
 442                 printf("{%u, %u, %u, %u, %u, %u, %u, %u},\n",
 443                        recorded[i].r1,
 444                        recorded[i].r2,
 445                        recorded[i].conn,
 446                        recorded[i].fstype,
 447                        recorded[i].f,
 448                        recorded[i].start,
 449                        recorded[i].len,
 450                        recorded[i].needed);
 451         }
 452 }
 453
 454
 455
 456 static void usage(void)
 457 {
 458         printf(
 459 "Usage:\n\
 460   locktest //server1/share1 //server2/share2 /path1 /path2 [options..]\n\
 461   options:\n\
 462         -U user%%pass\n\
 463         -s seed\n\
 464         -o numops\n\
 465         -u          hide unlock fails\n\
 466         -a          (show all ops)\n\
 467         -O          use oplocks\n\
 468 ");
 469 }
 470
 471 /****************************************************************************
 472   main program
 473 ****************************************************************************/
 474  int main(int argc,char *argv[])
 475 {
 476         char *share1, *share2, *nfspath1, *nfspath2;
 477         extern char *optarg;
 478         extern int optind;
 479         int opt;
 480         char *p;
 481         int seed;
 482
 483         setlinebuf(stdout);
 484
 485         dbf = x_stderr;
 486
 487         if (argc < 5 || argv[1][0] == '-') {
 488                 usage();
 489                 exit(1);
 490         }
 491
 492         share1 = argv[1];
 493         share2 = argv[2];
 494         nfspath1 = argv[3];
 495         nfspath2 = argv[4];
 496
 497         all_string_sub(share1,"/","\\",0);
 498         all_string_sub(share2,"/","\\",0);
 499
 500         setup_logging(argv[0],True);
 501
 502         argc -= 4;
 503         argv += 4;
 504
 505         lp_load(dyn_CONFIGFILE,True,False,False);
 506         load_interfaces();
 507
 508         if (getenv("USER")) {
 509                 fstrcpy(username,getenv("USER"));
 510         }
 511
 512         seed = time(NULL);
 513
 514         while ((opt = getopt(argc, argv, "U:s:ho:aAW:O")) != EOF) {
 515                 switch (opt) {
 516                 case 'U':
 517                         fstrcpy(username,optarg);
 518                         p = strchr_m(username,'%');
 519                         if (p) {
 520                                 *p = 0;
 521                                 fstrcpy(password, p+1);
 522                                 got_pass = 1;
 523                         }
 524                         break;
 525                 case 's':
 526                         seed = atoi(optarg);
 527                         break;
 528                 case 'u':
 529                         hide_unlock_fails = True;
 530                         break;
 531                 case 'o':
 532                         numops = atoi(optarg);
 533                         break;
 534                 case 'O':
 535                         use_oplocks = True;
 536                         break;
 537                 case 'a':
 538                         showall = True;
 539                         break;
 540                 case 'A':
 541                         analyze = True;
 542                         break;
 543                 case 'h':
 544                         usage();
 545                         exit(1);
 546                 default:
 547                         printf("Unknown option %c (%d)\n", (char)opt, opt);
 548                         exit(1);
 549                 }
 550         }
 551
 552         argc -= optind;
 553         argv += optind;
 554
 555         DEBUG(0,("seed=%u\n", seed));
 556         srandom(seed);
 557
 558         locking_init(1);
 559         test_locks(share1, share2, nfspath1, nfspath2);
 560
 561         return(0);
 562 }