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