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