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 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 "system/filesys.h"
  22
  23 static fstring password;
  24 static fstring username;
  25 static int got_pass;
  26 static int numops = 1000;
  27 static bool showall;
  28 static bool analyze;
  29 static bool hide_unlock_fails;
  30 static bool use_oplocks;
  31
  32 extern char *optarg;
  33 extern int optind;
  34
  35 #define FILENAME "\\locktest.dat"
  36 #define LOCKRANGE 100
  37 #define LOCKBASE 0
  38
  39 /*
  40 #define LOCKBASE (0x40000000 - 50)
  41 */
  42
  43 #define READ_PCT 50
  44 #define LOCK_PCT 25
  45 #define UNLOCK_PCT 65
  46 #define RANGE_MULTIPLE 1
  47
  48 #define NSERVERS 2
  49 #define NCONNECTIONS 2
  50 #define NUMFSTYPES 2
  51 #define NFILES 2
  52 #define LOCK_TIMEOUT 0
  53
  54 #define FSTYPE_SMB 0
  55 #define FSTYPE_NFS 1
  56
  57 struct record {
  58         char r1, r2;
  59         char conn, f, fstype;
  60         unsigned start, len;
  61         char needed;
  62 };
  63
  64 static struct record *recorded;
  65
  66 static int try_open(struct cli_state *c, char *nfs, int fstype, const char *fname, int flags)
  67 {
  68         char *path;
  69
  70         switch (fstype) {
  71         case FSTYPE_SMB:
  72                 {
  73                         uint16_t fd;
  74                         if (!NT_STATUS_IS_OK(cli_open(c, fname, flags, DENY_NONE, &fd))) {
  75                                 return -1;
  76                         }
  77                         return fd;
  78                 }
  79
  80         case FSTYPE_NFS:
  81                 if (asprintf(&path, "%s%s", nfs, fname) > 0) {
  82                         int ret;
  83                         string_replace(path,'\\', '/');
  84                         ret = open(path, flags, 0666);
  85                         SAFE_FREE(path);
  86                         return ret;
  87                 }
  88                 break;
  89         }
  90
  91         return -1;
  92 }
  93
  94 static bool try_close(struct cli_state *c, int fstype, int fd)
  95 {
  96         switch (fstype) {
  97         case FSTYPE_SMB:
  98                 return NT_STATUS_IS_OK(cli_close(c, fd));
  99
 100         case FSTYPE_NFS:
 101                 return close(fd) == 0;
 102         }
 103
 104         return False;
 105 }
 106
 107 static bool try_lock(struct cli_state *c, int fstype,
 108                      int fd, unsigned start, unsigned len,
 109                      enum brl_type op)
 110 {
 111         struct flock lock;
 112
 113         switch (fstype) {
 114         case FSTYPE_SMB:
 115                 return cli_lock(c, fd, start, len, LOCK_TIMEOUT, op);
 116
 117         case FSTYPE_NFS:
 118                 lock.l_type = (op==READ_LOCK) ? F_RDLCK:F_WRLCK;
 119                 lock.l_whence = SEEK_SET;
 120                 lock.l_start = start;
 121                 lock.l_len = len;
 122                 lock.l_pid = getpid();
 123                 return fcntl(fd,F_SETLK,&lock) == 0;
 124         }
 125
 126         return False;
 127 }
 128
 129 static bool try_unlock(struct cli_state *c, int fstype,
 130                        int fd, unsigned start, unsigned len)
 131 {
 132         struct flock lock;
 133
 134         switch (fstype) {
 135         case FSTYPE_SMB:
 136                 return NT_STATUS_IS_OK(cli_unlock(c, fd, start, len));
 137
 138         case FSTYPE_NFS:
 139                 lock.l_type = F_UNLCK;
 140                 lock.l_whence = SEEK_SET;
 141                 lock.l_start = start;
 142                 lock.l_len = len;
 143                 lock.l_pid = getpid();
 144                 return fcntl(fd,F_SETLK,&lock) == 0;
 145         }
 146
 147         return False;
 148 }
 149
 150 static void print_brl(struct file_id id, struct server_id pid,
 151                       enum brl_type lock_type,
 152                       enum brl_flavour lock_flav,
 153                       br_off start, br_off size,
 154                       void *private_data)
 155 {
 156         printf("%6d   %s    %s  %.0f:%.0f(%.0f)\n",
 157                (int)procid_to_pid(&pid), file_id_string_tos(&id),
 158                lock_type==READ_LOCK?"R":"W",
 159                (double)start, (double)start+size-1,(double)size);
 160
 161 }
 162
 163 /*****************************************************
 164 return a connection to a server
 165 *******************************************************/
 166 static struct cli_state *connect_one(char *share)
 167 {
 168         struct cli_state *c;
 169         char *server_n;
 170         fstring server;
 171         fstring myname;
 172         static int count;
 173         NTSTATUS nt_status;
 174
 175         fstrcpy(server,share+2);
 176         share = strchr_m(server,'\\');
 177         if (!share) return NULL;
 178         *share = 0;
 179         share++;
 180
 181         server_n = server;
 182
 183         if (!got_pass) {
 184                 char *pass = getpass("Password: ");
 185                 if (pass) {
 186                         fstrcpy(password, pass);
 187                 }
 188         }
 189
 190         slprintf(myname,sizeof(myname), "lock-%lu-%u", (unsigned long)getpid(), count++);
 191
 192         nt_status = cli_full_connection(&c, myname, server_n, NULL, 0, share, "?????",
 193                                         username, lp_workgroup(), password, 0,
 194                                         Undefined);
 195
 196         if (!NT_STATUS_IS_OK(nt_status)) {
 197                 DEBUG(0, ("cli_full_connection failed with error %s\n", nt_errstr(nt_status)));
 198                 return NULL;
 199         }
 200
 201         c->use_oplocks = use_oplocks;
 202
 203         return c;
 204 }
 205
 206
 207 static void reconnect(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 208                       char *nfs[NSERVERS],
 209                       int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 210                       char *share1, char *share2)
 211 {
 212         int server, conn, f, fstype;
 213         char *share[2];
 214         share[0] = share1;
 215         share[1] = share2;
 216
 217         fstype = FSTYPE_SMB;
 218
 219         for (server=0;server<NSERVERS;server++)
 220         for (conn=0;conn<NCONNECTIONS;conn++) {
 221                 if (cli[server][conn]) {
 222                         for (f=0;f<NFILES;f++) {
 223                                 cli_close(cli[server][conn], fnum[server][fstype][conn][f]);
 224                         }
 225                         cli_ulogoff(cli[server][conn]);
 226                         cli_shutdown(cli[server][conn]);
 227                 }
 228                 cli[server][conn] = connect_one(share[server]);
 229                 if (!cli[server][conn]) {
 230                         DEBUG(0,("Failed to connect to %s\n", share[server]));
 231                         exit(1);
 232                 }
 233         }
 234 }
 235
 236
 237
 238 static bool test_one(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 239                      char *nfs[NSERVERS],
 240                      int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 241                      struct record *rec)
 242 {
 243         unsigned conn = rec->conn;
 244         unsigned f = rec->f;
 245         unsigned fstype = rec->fstype;
 246         unsigned start = rec->start;
 247         unsigned len = rec->len;
 248         unsigned r1 = rec->r1;
 249         unsigned r2 = rec->r2;
 250         enum brl_type op;
 251         int server;
 252         bool ret[NSERVERS];
 253
 254         if (r1 < READ_PCT) {
 255                 op = READ_LOCK;
 256         } else {
 257                 op = WRITE_LOCK;
 258         }
 259
 260         if (r2 < LOCK_PCT) {
 261                 /* set a lock */
 262                 for (server=0;server<NSERVERS;server++) {
 263                         ret[server] = try_lock(cli[server][conn], fstype,
 264                                                fnum[server][fstype][conn][f],
 265                                                start, len, op);
 266                 }
 267                 if (showall || ret[0] != ret[1]) {
 268                         printf("lock   conn=%u fstype=%u f=%u range=%u:%u(%u) op=%s -> %u:%u\n",
 269                                conn, fstype, f,
 270                                start, start+len-1, len,
 271                                op==READ_LOCK?"READ_LOCK":"WRITE_LOCK",
 272                                ret[0], ret[1]);
 273                 }
 274                 if (showall) brl_forall(print_brl, NULL);
 275                 if (ret[0] != ret[1]) return False;
 276         } else if (r2 < LOCK_PCT+UNLOCK_PCT) {
 277                 /* unset a lock */
 278                 for (server=0;server<NSERVERS;server++) {
 279                         ret[server] = try_unlock(cli[server][conn], fstype,
 280                                                  fnum[server][fstype][conn][f],
 281                                                  start, len);
 282                 }
 283                 if (showall || (!hide_unlock_fails && (ret[0] != ret[1]))) {
 284                         printf("unlock conn=%u fstype=%u f=%u range=%u:%u(%u)       -> %u:%u\n",
 285                                conn, fstype, f,
 286                                start, start+len-1, len,
 287                                ret[0], ret[1]);
 288                 }
 289                 if (showall) brl_forall(print_brl, NULL);
 290                 if (!hide_unlock_fails && ret[0] != ret[1]) return False;
 291         } else {
 292                 /* reopen the file */
 293                 for (server=0;server<NSERVERS;server++) {
 294                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 295                         fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 296                                                                  O_RDWR|O_CREAT);
 297                         if (fnum[server][fstype][conn][f] == -1) {
 298                                 printf("failed to reopen on share1\n");
 299                                 return False;
 300                         }
 301                 }
 302                 if (showall) {
 303                         printf("reopen conn=%u fstype=%u f=%u\n",
 304                                conn, fstype, f);
 305                         brl_forall(print_brl, NULL);
 306                 }
 307         }
 308         return True;
 309 }
 310
 311 static void close_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 312                         char *nfs[NSERVERS],
 313                         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 314 {
 315         int server, conn, f, fstype;
 316
 317         for (server=0;server<NSERVERS;server++)
 318         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 319         for (conn=0;conn<NCONNECTIONS;conn++)
 320         for (f=0;f<NFILES;f++) {
 321                 if (fnum[server][fstype][conn][f] != -1) {
 322                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 323                         fnum[server][fstype][conn][f] = -1;
 324                 }
 325         }
 326         for (server=0;server<NSERVERS;server++) {
 327                 cli_unlink(cli[server][0], FILENAME, aSYSTEM | aHIDDEN);
 328         }
 329 }
 330
 331 static void open_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 332                        char *nfs[NSERVERS],
 333                        int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 334 {
 335         int server, fstype, conn, f;
 336
 337         for (server=0;server<NSERVERS;server++)
 338         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 339         for (conn=0;conn<NCONNECTIONS;conn++)
 340         for (f=0;f<NFILES;f++) {
 341                 fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 342                                                          O_RDWR|O_CREAT);
 343                 if (fnum[server][fstype][conn][f] == -1) {
 344                         fprintf(stderr,"Failed to open fnum[%u][%u][%u][%u]\n",
 345                                 server, fstype, conn, f);
 346                         exit(1);
 347                 }
 348         }
 349 }
 350
 351
 352 static int retest(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 353                   char *nfs[NSERVERS],
 354                   int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 355                   int n)
 356 {
 357         int i;
 358         printf("testing %u ...\n", n);
 359         for (i=0; i<n; i++) {
 360                 if (i && i % 100 == 0) {
 361                         printf("%u\n", i);
 362                 }
 363
 364                 if (recorded[i].needed &&
 365                     !test_one(cli, nfs, fnum, &recorded[i])) return i;
 366         }
 367         return n;
 368 }
 369
 370
 371 /* each server has two connections open to it. Each connection has two file
 372    descriptors open on the file - 8 file descriptors in total
 373
 374    we then do random locking ops in tamdem on the 4 fnums from each
 375    server and ensure that the results match
 376  */
 377 static void test_locks(char *share1, char *share2, char *nfspath1, char *nfspath2)
 378 {
 379         struct cli_state *cli[NSERVERS][NCONNECTIONS];
 380         char *nfs[NSERVERS];
 381         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES];
 382         int n, i, n1;
 383
 384         nfs[0] = nfspath1;
 385         nfs[1] = nfspath2;
 386
 387         ZERO_STRUCT(fnum);
 388         ZERO_STRUCT(cli);
 389
 390         recorded = SMB_MALLOC_ARRAY(struct record, numops);
 391
 392         for (n=0; n<numops; n++) {
 393                 recorded[n].conn = random() % NCONNECTIONS;
 394                 recorded[n].fstype = random() % NUMFSTYPES;
 395                 recorded[n].f = random() % NFILES;
 396                 recorded[n].start = LOCKBASE + ((unsigned)random() % (LOCKRANGE-1));
 397                 recorded[n].len = 1 +
 398                         random() % (LOCKRANGE-(recorded[n].start-LOCKBASE));
 399                 recorded[n].start *= RANGE_MULTIPLE;
 400                 recorded[n].len *= RANGE_MULTIPLE;
 401                 recorded[n].r1 = random() % 100;
 402                 recorded[n].r2 = random() % 100;
 403                 recorded[n].needed = True;
 404         }
 405
 406         reconnect(cli, nfs, fnum, share1, share2);
 407         open_files(cli, nfs, fnum);
 408         n = retest(cli, nfs, fnum, numops);
 409
 410         if (n == numops || !analyze) return;
 411         n++;
 412
 413         while (1) {
 414                 n1 = n;
 415
 416                 close_files(cli, nfs, fnum);
 417                 reconnect(cli, nfs, fnum, share1, share2);
 418                 open_files(cli, nfs, fnum);
 419
 420                 for (i=0;i<n-1;i++) {
 421                         int m;
 422                         recorded[i].needed = False;
 423
 424                         close_files(cli, nfs, fnum);
 425                         open_files(cli, nfs, fnum);
 426
 427                         m = retest(cli, nfs, fnum, n);
 428                         if (m == n) {
 429                                 recorded[i].needed = True;
 430                         } else {
 431                                 if (i < m) {
 432                                         memmove(&recorded[i], &recorded[i+1],
 433                                                 (m-i)*sizeof(recorded[0]));
 434                                 }
 435                                 n = m;
 436                                 i--;
 437                         }
 438                 }
 439
 440                 if (n1 == n) break;
 441         }
 442
 443         close_files(cli, nfs, fnum);
 444         reconnect(cli, nfs, fnum, share1, share2);
 445         open_files(cli, nfs, fnum);
 446         showall = True;
 447         n1 = retest(cli, nfs, fnum, n);
 448         if (n1 != n-1) {
 449                 printf("ERROR - inconsistent result (%u %u)\n", n1, n);
 450         }
 451         close_files(cli, nfs, fnum);
 452
 453         for (i=0;i<n;i++) {
 454                 printf("{%u, %u, %u, %u, %u, %u, %u, %u},\n",
 455                        recorded[i].r1,
 456                        recorded[i].r2,
 457                        recorded[i].conn,
 458                        recorded[i].fstype,
 459                        recorded[i].f,
 460                        recorded[i].start,
 461                        recorded[i].len,
 462                        recorded[i].needed);
 463         }
 464 }
 465
 466
 467
 468 static void usage(void)
 469 {
 470         printf(
 471 "Usage:\n\
 472   locktest //server1/share1 //server2/share2 /path1 /path2 [options..]\n\
 473   options:\n\
 474         -U user%%pass\n\
 475         -s seed\n\
 476         -o numops\n\
 477         -u          hide unlock fails\n\
 478         -a          (show all ops)\n\
 479         -O          use oplocks\n\
 480 ");
 481 }
 482
 483 /****************************************************************************
 484   main program
 485 ****************************************************************************/
 486  int main(int argc,char *argv[])
 487 {
 488         char *share1, *share2, *nfspath1, *nfspath2;
 489         int opt;
 490         char *p;
 491         int seed;
 492
 493         setlinebuf(stdout);
 494
 495         if (argc < 5 || argv[1][0] == '-') {
 496                 usage();
 497                 exit(1);
 498         }
 499
 500         setup_logging(argv[0], DEBUG_STDOUT);
 501
 502         share1 = argv[1];
 503         share2 = argv[2];
 504         nfspath1 = argv[3];
 505         nfspath2 = argv[4];
 506
 507         all_string_sub(share1,"/","\\",0);
 508         all_string_sub(share2,"/","\\",0);
 509
 510         argc -= 4;
 511         argv += 4;
 512
 513         lp_load(get_dyn_CONFIGFILE(),True,False,False,True);
 514         load_interfaces();
 515
 516         if (getenv("USER")) {
 517                 fstrcpy(username,getenv("USER"));
 518         }
 519
 520         seed = time(NULL);
 521
 522         while ((opt = getopt(argc, argv, "U:s:ho:aAW:O")) != EOF) {
 523                 switch (opt) {
 524                 case 'U':
 525                         fstrcpy(username,optarg);
 526                         p = strchr_m(username,'%');
 527                         if (p) {
 528                                 *p = 0;
 529                                 fstrcpy(password, p+1);
 530                                 got_pass = 1;
 531                         }
 532                         break;
 533                 case 's':
 534                         seed = atoi(optarg);
 535                         break;
 536                 case 'u':
 537                         hide_unlock_fails = True;
 538                         break;
 539                 case 'o':
 540                         numops = atoi(optarg);
 541                         break;
 542                 case 'O':
 543                         use_oplocks = True;
 544                         break;
 545                 case 'a':
 546                         showall = True;
 547                         break;
 548                 case 'A':
 549                         analyze = True;
 550                         break;
 551                 case 'h':
 552                         usage();
 553                         exit(1);
 554                 default:
 555                         printf("Unknown option %c (%d)\n", (char)opt, opt);
 556                         exit(1);
 557                 }
 558         }
 559
 560         argc -= optind;
 561         argv += optind;
 562
 563         DEBUG(0,("seed=%u\n", seed));
 564         srandom(seed);
 565
 566         locking_init_readonly();
 567         test_locks(share1, share2, nfspath1, nfspath2);
 568
 569         return(0);
 570 }