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 "libsmb/libsmb.h"
  22 #include "system/filesys.h"
  23 #include "locking/proto.h"
  24
  25 static fstring password;
  26 static fstring username;
  27 static int got_pass;
  28 static int numops = 1000;
  29 static bool showall;
  30 static bool analyze;
  31 static bool hide_unlock_fails;
  32 static bool use_oplocks;
  33
  34 extern char *optarg;
  35 extern int optind;
  36
  37 #define FILENAME "\\locktest.dat"
  38 #define LOCKRANGE 100
  39 #define LOCKBASE 0
  40
  41 /*
  42 #define LOCKBASE (0x40000000 - 50)
  43 */
  44
  45 #define READ_PCT 50
  46 #define LOCK_PCT 25
  47 #define UNLOCK_PCT 65
  48 #define RANGE_MULTIPLE 1
  49
  50 #define NSERVERS 2
  51 #define NCONNECTIONS 2
  52 #define NUMFSTYPES 2
  53 #define NFILES 2
  54 #define LOCK_TIMEOUT 0
  55
  56 #define FSTYPE_SMB 0
  57 #define FSTYPE_NFS 1
  58
  59 struct record {
  60         char r1, r2;
  61         char conn, f, fstype;
  62         unsigned start, len;
  63         char needed;
  64 };
  65
  66 static struct record *recorded;
  67
  68 static int try_open(struct cli_state *c, char *nfs, int fstype, const char *fname, int flags)
  69 {
  70         char *path;
  71
  72         switch (fstype) {
  73         case FSTYPE_SMB:
  74                 {
  75                         uint16_t fd;
  76                         if (!NT_STATUS_IS_OK(cli_openx(c, fname, flags, DENY_NONE, &fd))) {
  77                                 return -1;
  78                         }
  79                         return fd;
  80                 }
  81
  82         case FSTYPE_NFS:
  83                 if (asprintf(&path, "%s%s", nfs, fname) > 0) {
  84                         int ret;
  85                         string_replace(path,'\\', '/');
  86                         ret = open(path, flags, 0666);
  87                         SAFE_FREE(path);
  88                         return ret;
  89                 }
  90                 break;
  91         }
  92
  93         return -1;
  94 }
  95
  96 static bool try_close(struct cli_state *c, int fstype, int fd)
  97 {
  98         switch (fstype) {
  99         case FSTYPE_SMB:
 100                 return NT_STATUS_IS_OK(cli_close(c, fd));
 101
 102         case FSTYPE_NFS:
 103                 return close(fd) == 0;
 104         }
 105
 106         return False;
 107 }
 108
 109 static bool try_lock(struct cli_state *c, int fstype,
 110                      int fd, unsigned start, unsigned len,
 111                      enum brl_type op)
 112 {
 113         struct flock lock;
 114
 115         switch (fstype) {
 116         case FSTYPE_SMB:
 117                 return NT_STATUS_IS_OK(cli_lock32(c, fd, start, len,
 118                                        LOCK_TIMEOUT, op));
 119
 120         case FSTYPE_NFS:
 121                 lock.l_type = (op==READ_LOCK) ? F_RDLCK:F_WRLCK;
 122                 lock.l_whence = SEEK_SET;
 123                 lock.l_start = start;
 124                 lock.l_len = len;
 125                 lock.l_pid = getpid();
 126                 return fcntl(fd,F_SETLK,&lock) == 0;
 127         }
 128
 129         return False;
 130 }
 131
 132 static bool try_unlock(struct cli_state *c, int fstype,
 133                        int fd, unsigned start, unsigned len)
 134 {
 135         struct flock lock;
 136
 137         switch (fstype) {
 138         case FSTYPE_SMB:
 139                 return NT_STATUS_IS_OK(cli_unlock(c, fd, start, len));
 140
 141         case FSTYPE_NFS:
 142                 lock.l_type = F_UNLCK;
 143                 lock.l_whence = SEEK_SET;
 144                 lock.l_start = start;
 145                 lock.l_len = len;
 146                 lock.l_pid = getpid();
 147                 return fcntl(fd,F_SETLK,&lock) == 0;
 148         }
 149
 150         return False;
 151 }
 152
 153 static void print_brl(struct file_id id, struct server_id pid,
 154                       enum brl_type lock_type,
 155                       enum brl_flavour lock_flav,
 156                       br_off start, br_off size,
 157                       void *private_data)
 158 {
 159         printf("%6d   %s    %s  %.0f:%.0f(%.0f)\n",
 160                (int)procid_to_pid(&pid), file_id_string_tos(&id),
 161                lock_type==READ_LOCK?"R":"W",
 162                (double)start, (double)start+size-1,(double)size);
 163
 164 }
 165
 166 /*****************************************************
 167 return a connection to a server
 168 *******************************************************/
 169 static struct cli_state *connect_one(char *share)
 170 {
 171         struct cli_state *c;
 172         char *server_n;
 173         fstring server;
 174         fstring myname;
 175         static int count;
 176         NTSTATUS nt_status;
 177
 178         fstrcpy(server,share+2);
 179         share = strchr_m(server,'\\');
 180         if (!share) return NULL;
 181         *share = 0;
 182         share++;
 183
 184         server_n = server;
 185
 186         if (!got_pass) {
 187                 char pwd[256] = {0};
 188                 int rc;
 189
 190                 rc = samba_getpass("Password: ", pwd, sizeof(pwd), false, false);
 191                 if (rc == 0) {
 192                         fstrcpy(password, pwd);
 193                 }
 194         }
 195
 196         slprintf(myname,sizeof(myname), "lock-%lu-%u", (unsigned long)getpid(), count++);
 197
 198         nt_status = cli_full_connection(&c, myname, server_n, NULL, 0, share, "?????",
 199                                         username, lp_workgroup(), password, 0,
 200                                         SMB_SIGNING_DEFAULT);
 201
 202         if (!NT_STATUS_IS_OK(nt_status)) {
 203                 DEBUG(0, ("cli_full_connection failed with error %s\n", nt_errstr(nt_status)));
 204                 return NULL;
 205         }
 206
 207         c->use_oplocks = use_oplocks;
 208
 209         return c;
 210 }
 211
 212
 213 static void reconnect(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 214                       char *nfs[NSERVERS],
 215                       int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 216                       char *share1, char *share2)
 217 {
 218         int server, conn, f, fstype;
 219         char *share[2];
 220         share[0] = share1;
 221         share[1] = share2;
 222
 223         fstype = FSTYPE_SMB;
 224
 225         for (server=0;server<NSERVERS;server++)
 226         for (conn=0;conn<NCONNECTIONS;conn++) {
 227                 if (cli[server][conn]) {
 228                         for (f=0;f<NFILES;f++) {
 229                                 cli_close(cli[server][conn], fnum[server][fstype][conn][f]);
 230                         }
 231                         cli_ulogoff(cli[server][conn]);
 232                         cli_shutdown(cli[server][conn]);
 233                 }
 234                 cli[server][conn] = connect_one(share[server]);
 235                 if (!cli[server][conn]) {
 236                         DEBUG(0,("Failed to connect to %s\n", share[server]));
 237                         exit(1);
 238                 }
 239         }
 240 }
 241
 242
 243
 244 static bool test_one(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 245                      char *nfs[NSERVERS],
 246                      int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 247                      struct record *rec)
 248 {
 249         unsigned conn = rec->conn;
 250         unsigned f = rec->f;
 251         unsigned fstype = rec->fstype;
 252         unsigned start = rec->start;
 253         unsigned len = rec->len;
 254         unsigned r1 = rec->r1;
 255         unsigned r2 = rec->r2;
 256         enum brl_type op;
 257         int server;
 258         bool ret[NSERVERS];
 259
 260         if (r1 < READ_PCT) {
 261                 op = READ_LOCK;
 262         } else {
 263                 op = WRITE_LOCK;
 264         }
 265
 266         if (r2 < LOCK_PCT) {
 267                 /* set a lock */
 268                 for (server=0;server<NSERVERS;server++) {
 269                         ret[server] = try_lock(cli[server][conn], fstype,
 270                                                fnum[server][fstype][conn][f],
 271                                                start, len, op);
 272                 }
 273                 if (showall || ret[0] != ret[1]) {
 274                         printf("lock   conn=%u fstype=%u f=%u range=%u:%u(%u) op=%s -> %u:%u\n",
 275                                conn, fstype, f,
 276                                start, start+len-1, len,
 277                                op==READ_LOCK?"READ_LOCK":"WRITE_LOCK",
 278                                ret[0], ret[1]);
 279                 }
 280                 if (showall) brl_forall(print_brl, NULL);
 281                 if (ret[0] != ret[1]) return False;
 282         } else if (r2 < LOCK_PCT+UNLOCK_PCT) {
 283                 /* unset a lock */
 284                 for (server=0;server<NSERVERS;server++) {
 285                         ret[server] = try_unlock(cli[server][conn], fstype,
 286                                                  fnum[server][fstype][conn][f],
 287                                                  start, len);
 288                 }
 289                 if (showall || (!hide_unlock_fails && (ret[0] != ret[1]))) {
 290                         printf("unlock conn=%u fstype=%u f=%u range=%u:%u(%u)       -> %u:%u\n",
 291                                conn, fstype, f,
 292                                start, start+len-1, len,
 293                                ret[0], ret[1]);
 294                 }
 295                 if (showall) brl_forall(print_brl, NULL);
 296                 if (!hide_unlock_fails && ret[0] != ret[1]) return False;
 297         } else {
 298                 /* reopen the file */
 299                 for (server=0;server<NSERVERS;server++) {
 300                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 301                         fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 302                                                                  O_RDWR|O_CREAT);
 303                         if (fnum[server][fstype][conn][f] == -1) {
 304                                 printf("failed to reopen on share1\n");
 305                                 return False;
 306                         }
 307                 }
 308                 if (showall) {
 309                         printf("reopen conn=%u fstype=%u f=%u\n",
 310                                conn, fstype, f);
 311                         brl_forall(print_brl, NULL);
 312                 }
 313         }
 314         return True;
 315 }
 316
 317 static void close_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 318                         char *nfs[NSERVERS],
 319                         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 320 {
 321         int server, conn, f, fstype;
 322
 323         for (server=0;server<NSERVERS;server++)
 324         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 325         for (conn=0;conn<NCONNECTIONS;conn++)
 326         for (f=0;f<NFILES;f++) {
 327                 if (fnum[server][fstype][conn][f] != -1) {
 328                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 329                         fnum[server][fstype][conn][f] = -1;
 330                 }
 331         }
 332         for (server=0;server<NSERVERS;server++) {
 333                 cli_unlink(cli[server][0], FILENAME, FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN);
 334         }
 335 }
 336
 337 static void open_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 338                        char *nfs[NSERVERS],
 339                        int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 340 {
 341         int server, fstype, conn, f;
 342
 343         for (server=0;server<NSERVERS;server++)
 344         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 345         for (conn=0;conn<NCONNECTIONS;conn++)
 346         for (f=0;f<NFILES;f++) {
 347                 fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 348                                                          O_RDWR|O_CREAT);
 349                 if (fnum[server][fstype][conn][f] == -1) {
 350                         fprintf(stderr,"Failed to open fnum[%u][%u][%u][%u]\n",
 351                                 server, fstype, conn, f);
 352                         exit(1);
 353                 }
 354         }
 355 }
 356
 357
 358 static int retest(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 359                   char *nfs[NSERVERS],
 360                   int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 361                   int n)
 362 {
 363         int i;
 364         printf("testing %u ...\n", n);
 365         for (i=0; i<n; i++) {
 366                 if (i && i % 100 == 0) {
 367                         printf("%u\n", i);
 368                 }
 369
 370                 if (recorded[i].needed &&
 371                     !test_one(cli, nfs, fnum, &recorded[i])) return i;
 372         }
 373         return n;
 374 }
 375
 376
 377 /* each server has two connections open to it. Each connection has two file
 378    descriptors open on the file - 8 file descriptors in total
 379
 380    we then do random locking ops in tamdem on the 4 fnums from each
 381    server and ensure that the results match
 382  */
 383 static void test_locks(char *share1, char *share2, char *nfspath1, char *nfspath2)
 384 {
 385         struct cli_state *cli[NSERVERS][NCONNECTIONS];
 386         char *nfs[NSERVERS];
 387         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES];
 388         int n, i, n1;
 389
 390         nfs[0] = nfspath1;
 391         nfs[1] = nfspath2;
 392
 393         ZERO_STRUCT(fnum);
 394         ZERO_STRUCT(cli);
 395
 396         recorded = SMB_MALLOC_ARRAY(struct record, numops);
 397
 398         for (n=0; n<numops; n++) {
 399                 recorded[n].conn = random() % NCONNECTIONS;
 400                 recorded[n].fstype = random() % NUMFSTYPES;
 401                 recorded[n].f = random() % NFILES;
 402                 recorded[n].start = LOCKBASE + ((unsigned)random() % (LOCKRANGE-1));
 403                 recorded[n].len = 1 +
 404                         random() % (LOCKRANGE-(recorded[n].start-LOCKBASE));
 405                 recorded[n].start *= RANGE_MULTIPLE;
 406                 recorded[n].len *= RANGE_MULTIPLE;
 407                 recorded[n].r1 = random() % 100;
 408                 recorded[n].r2 = random() % 100;
 409                 recorded[n].needed = True;
 410         }
 411
 412         reconnect(cli, nfs, fnum, share1, share2);
 413         open_files(cli, nfs, fnum);
 414         n = retest(cli, nfs, fnum, numops);
 415
 416         if (n == numops || !analyze) return;
 417         n++;
 418
 419         while (1) {
 420                 n1 = n;
 421
 422                 close_files(cli, nfs, fnum);
 423                 reconnect(cli, nfs, fnum, share1, share2);
 424                 open_files(cli, nfs, fnum);
 425
 426                 for (i=0;i<n-1;i++) {
 427                         int m;
 428                         recorded[i].needed = False;
 429
 430                         close_files(cli, nfs, fnum);
 431                         open_files(cli, nfs, fnum);
 432
 433                         m = retest(cli, nfs, fnum, n);
 434                         if (m == n) {
 435                                 recorded[i].needed = True;
 436                         } else {
 437                                 if (i < m) {
 438                                         memmove(&recorded[i], &recorded[i+1],
 439                                                 (m-i)*sizeof(recorded[0]));
 440                                 }
 441                                 n = m;
 442                                 i--;
 443                         }
 444                 }
 445
 446                 if (n1 == n) break;
 447         }
 448
 449         close_files(cli, nfs, fnum);
 450         reconnect(cli, nfs, fnum, share1, share2);
 451         open_files(cli, nfs, fnum);
 452         showall = True;
 453         n1 = retest(cli, nfs, fnum, n);
 454         if (n1 != n-1) {
 455                 printf("ERROR - inconsistent result (%u %u)\n", n1, n);
 456         }
 457         close_files(cli, nfs, fnum);
 458
 459         for (i=0;i<n;i++) {
 460                 printf("{%u, %u, %u, %u, %u, %u, %u, %u},\n",
 461                        recorded[i].r1,
 462                        recorded[i].r2,
 463                        recorded[i].conn,
 464                        recorded[i].fstype,
 465                        recorded[i].f,
 466                        recorded[i].start,
 467                        recorded[i].len,
 468                        recorded[i].needed);
 469         }
 470 }
 471
 472
 473
 474 static void usage(void)
 475 {
 476         printf(
 477 "Usage:\n\
 478   locktest //server1/share1 //server2/share2 /path1 /path2 [options..]\n\
 479   options:\n\
 480         -U user%%pass\n\
 481         -s seed\n\
 482         -o numops\n\
 483         -u          hide unlock fails\n\
 484         -a          (show all ops)\n\
 485         -O          use oplocks\n\
 486 ");
 487 }
 488
 489 /****************************************************************************
 490   main program
 491 ****************************************************************************/
 492  int main(int argc,char *argv[])
 493 {
 494         char *share1, *share2, *nfspath1, *nfspath2;
 495         int opt;
 496         char *p;
 497         int seed;
 498
 499         setlinebuf(stdout);
 500
 501         if (argc < 5 || argv[1][0] == '-') {
 502                 usage();
 503                 exit(1);
 504         }
 505
 506         setup_logging(argv[0], DEBUG_STDOUT);
 507
 508         share1 = argv[1];
 509         share2 = argv[2];
 510         nfspath1 = argv[3];
 511         nfspath2 = argv[4];
 512
 513         all_string_sub(share1,"/","\\",0);
 514         all_string_sub(share2,"/","\\",0);
 515
 516         argc -= 4;
 517         argv += 4;
 518
 519         lp_load_global(get_dyn_CONFIGFILE());
 520         load_interfaces();
 521
 522         if (getenv("USER")) {
 523                 fstrcpy(username,getenv("USER"));
 524         }
 525
 526         seed = time(NULL);
 527
 528         while ((opt = getopt(argc, argv, "U:s:ho:aAW:O")) != EOF) {
 529                 switch (opt) {
 530                 case 'U':
 531                         fstrcpy(username,optarg);
 532                         p = strchr_m(username,'%');
 533                         if (p) {
 534                                 *p = 0;
 535                                 fstrcpy(password, p+1);
 536                                 got_pass = 1;
 537                         }
 538                         break;
 539                 case 's':
 540                         seed = atoi(optarg);
 541                         break;
 542                 case 'u':
 543                         hide_unlock_fails = True;
 544                         break;
 545                 case 'o':
 546                         numops = atoi(optarg);
 547                         break;
 548                 case 'O':
 549                         use_oplocks = True;
 550                         break;
 551                 case 'a':
 552                         showall = True;
 553                         break;
 554                 case 'A':
 555                         analyze = True;
 556                         break;
 557                 case 'h':
 558                         usage();
 559                         exit(1);
 560                 default:
 561                         printf("Unknown option %c (%d)\n", (char)opt, opt);
 562                         exit(1);
 563                 }
 564         }
 565
 566         argc -= optind;
 567         argv += optind;
 568
 569         DEBUG(0,("seed=%u\n", seed));
 570         srandom(seed);
 571
 572         locking_init_readonly();
 573         test_locks(share1, share2, nfspath1, nfspath2);
 574
 575         return(0);
 576 }