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