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