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/share_mode_lock.h"
  24 #include "locking/proto.h"
  25 #include "lib/util/string_wrappers.h"
  26
  27 static fstring password;
  28 static fstring username;
  29 static int got_pass;
  30 static int numops = 1000;
  31 static bool showall;
  32 static bool analyze;
  33 static bool hide_unlock_fails;
  34 static bool use_oplocks;
  35
  36 extern char *optarg;
  37 extern int optind;
  38
  39 #define FILENAME "\\locktest.dat"
  40 #define LOCKRANGE 100
  41 #define LOCKBASE 0
  42
  43 /*
  44 #define LOCKBASE (0x40000000 - 50)
  45 */
  46
  47 #define READ_PCT 50
  48 #define LOCK_PCT 25
  49 #define UNLOCK_PCT 65
  50 #define RANGE_MULTIPLE 1
  51
  52 #define NSERVERS 2
  53 #define NCONNECTIONS 2
  54 #define NUMFSTYPES 2
  55 #define NFILES 2
  56 #define LOCK_TIMEOUT 0
  57
  58 #define FSTYPE_SMB 0
  59 #define FSTYPE_NFS 1
  60
  61 struct record {
  62         char r1, r2;
  63         char conn, f, fstype;
  64         unsigned start, len;
  65         char needed;
  66 };
  67
  68 static struct record *recorded;
  69
  70 static int try_open(struct cli_state *c, char *nfs, int fstype, const char *fname, int flags)
  71 {
  72         char *path;
  73
  74         switch (fstype) {
  75         case FSTYPE_SMB:
  76                 {
  77                         uint16_t fd;
  78                         if (!NT_STATUS_IS_OK(cli_openx(c, fname, flags, DENY_NONE, &fd))) {
  79                                 return -1;
  80                         }
  81                         return fd;
  82                 }
  83
  84         case FSTYPE_NFS:
  85                 if (asprintf(&path, "%s%s", nfs, fname) > 0) {
  86                         int ret;
  87                         string_replace(path,'\\', '/');
  88                         ret = open(path, flags, 0666);
  89                         SAFE_FREE(path);
  90                         return ret;
  91                 }
  92                 break;
  93         }
  94
  95         return -1;
  96 }
  97
  98 static bool try_close(struct cli_state *c, int fstype, int fd)
  99 {
 100         switch (fstype) {
 101         case FSTYPE_SMB:
 102                 return NT_STATUS_IS_OK(cli_close(c, fd));
 103
 104         case FSTYPE_NFS:
 105                 return close(fd) == 0;
 106         }
 107
 108         return False;
 109 }
 110
 111 static bool try_lock(struct cli_state *c, int fstype,
 112                      int fd, unsigned start, unsigned len,
 113                      enum brl_type op)
 114 {
 115         struct flock lock;
 116
 117         switch (fstype) {
 118         case FSTYPE_SMB:
 119                 return NT_STATUS_IS_OK(cli_lock32(c, fd, start, len,
 120                                        LOCK_TIMEOUT, op));
 121
 122         case FSTYPE_NFS:
 123                 lock.l_type = (op==READ_LOCK) ? F_RDLCK:F_WRLCK;
 124                 lock.l_whence = SEEK_SET;
 125                 lock.l_start = start;
 126                 lock.l_len = len;
 127                 lock.l_pid = getpid();
 128                 return fcntl(fd,F_SETLK,&lock) == 0;
 129         }
 130
 131         return False;
 132 }
 133
 134 static bool try_unlock(struct cli_state *c, int fstype,
 135                        int fd, unsigned start, unsigned len)
 136 {
 137         struct flock lock;
 138
 139         switch (fstype) {
 140         case FSTYPE_SMB:
 141                 return NT_STATUS_IS_OK(cli_unlock(c, fd, start, len));
 142
 143         case FSTYPE_NFS:
 144                 lock.l_type = F_UNLCK;
 145                 lock.l_whence = SEEK_SET;
 146                 lock.l_start = start;
 147                 lock.l_len = len;
 148                 lock.l_pid = getpid();
 149                 return fcntl(fd,F_SETLK,&lock) == 0;
 150         }
 151
 152         return False;
 153 }
 154
 155 static void print_brl(struct file_id id, struct server_id pid,
 156                       enum brl_type lock_type,
 157                       enum brl_flavour lock_flav,
 158                       br_off start, br_off size,
 159                       void *private_data)
 160 {
 161         struct file_id_buf idbuf;
 162
 163         printf("%6d   %s    %s  %.0f:%.0f(%.0f)\n",
 164                (int)procid_to_pid(&pid),
 165                file_id_str_buf(id, &idbuf),
 166                lock_type==READ_LOCK?"R":"W",
 167                (double)start, (double)start+size-1,(double)size);
 168
 169 }
 170
 171 /*****************************************************
 172 return a connection to a server
 173 *******************************************************/
 174 static struct cli_state *connect_one(char *share)
 175 {
 176         struct cli_state *c;
 177         char *server_n;
 178         fstring server;
 179         fstring myname;
 180         static int count;
 181         NTSTATUS nt_status;
 182         struct cli_credentials *creds = NULL;
 183
 184         fstrcpy(server,share+2);
 185         share = strchr_m(server,'\\');
 186         if (!share) return NULL;
 187         *share = 0;
 188         share++;
 189
 190         server_n = server;
 191
 192         if (!got_pass) {
 193                 char pwd[256] = {0};
 194                 int rc;
 195
 196                 rc = samba_getpass("Password: ", pwd, sizeof(pwd), false, false);
 197                 if (rc == 0) {
 198                         fstrcpy(password, pwd);
 199                 }
 200         }
 201
 202         creds = cli_session_creds_init(NULL,
 203                                        username,
 204                                        lp_workgroup(),
 205                                        NULL, /* realm (use default) */
 206                                        password,
 207                                        false,  /* use_kerberos */
 208                                        false,  /* fallback_after_kerberos */
 209                                        false,  /* use_ccache */
 210                                        false); /* pw_nt_hash */
 211         if (creds == NULL) {
 212                 DEBUG(0, ("cli_session_creds_init failed\n"));
 213                 return NULL;
 214         }
 215
 216         slprintf(myname,sizeof(myname), "lock-%lu-%u", (unsigned long)getpid(), count++);
 217
 218         nt_status = cli_full_connection_creds(NULL,
 219                                               &c,
 220                                               myname,
 221                                               server_n,
 222                                               NULL,
 223                                               0,
 224                                               share,
 225                                               "?????",
 226                                               creds,
 227                                               0);
 228         TALLOC_FREE(creds);
 229         if (!NT_STATUS_IS_OK(nt_status)) {
 230                 DEBUG(0, ("cli_full_connection failed with error %s\n", nt_errstr(nt_status)));
 231                 return NULL;
 232         }
 233
 234         c->use_oplocks = use_oplocks;
 235
 236         return c;
 237 }
 238
 239
 240 static void reconnect(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 241                       char *nfs[NSERVERS],
 242                       int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 243                       char *share1, char *share2)
 244 {
 245         int server, conn, f, fstype;
 246         char *share[2];
 247         share[0] = share1;
 248         share[1] = share2;
 249
 250         fstype = FSTYPE_SMB;
 251
 252         for (server=0;server<NSERVERS;server++)
 253         for (conn=0;conn<NCONNECTIONS;conn++) {
 254                 if (cli[server][conn]) {
 255                         for (f=0;f<NFILES;f++) {
 256                                 cli_close(cli[server][conn], fnum[server][fstype][conn][f]);
 257                         }
 258                         cli_ulogoff(cli[server][conn]);
 259                         cli_shutdown(cli[server][conn]);
 260                 }
 261                 cli[server][conn] = connect_one(share[server]);
 262                 if (!cli[server][conn]) {
 263                         DEBUG(0,("Failed to connect to %s\n", share[server]));
 264                         exit(1);
 265                 }
 266         }
 267 }
 268
 269
 270
 271 static bool test_one(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 272                      char *nfs[NSERVERS],
 273                      int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 274                      struct record *rec)
 275 {
 276         unsigned conn = rec->conn;
 277         unsigned f = rec->f;
 278         unsigned fstype = rec->fstype;
 279         unsigned start = rec->start;
 280         unsigned len = rec->len;
 281         unsigned r1 = rec->r1;
 282         unsigned r2 = rec->r2;
 283         enum brl_type op;
 284         int server;
 285         bool ret[NSERVERS];
 286
 287         if (r1 < READ_PCT) {
 288                 op = READ_LOCK;
 289         } else {
 290                 op = WRITE_LOCK;
 291         }
 292
 293         if (fstype >= NUMFSTYPES) {
 294                 return false;
 295         }
 296
 297         if (r2 < LOCK_PCT) {
 298                 /* set a lock */
 299                 for (server=0;server<NSERVERS;server++) {
 300                         ret[server] = try_lock(cli[server][conn], fstype,
 301                                                fnum[server][fstype][conn][f],
 302                                                start, len, op);
 303                 }
 304                 if (showall || ret[0] != ret[1]) {
 305                         printf("lock   conn=%u fstype=%u f=%u range=%u:%u(%u) op=%s -> %u:%u\n",
 306                                conn, fstype, f,
 307                                start, start+len-1, len,
 308                                op==READ_LOCK?"READ_LOCK":"WRITE_LOCK",
 309                                ret[0], ret[1]);
 310                 }
 311                 if (showall) brl_forall(print_brl, NULL);
 312                 if (ret[0] != ret[1]) return False;
 313         } else if (r2 < LOCK_PCT+UNLOCK_PCT) {
 314                 /* unset a lock */
 315                 for (server=0;server<NSERVERS;server++) {
 316                         ret[server] = try_unlock(cli[server][conn], fstype,
 317                                                  fnum[server][fstype][conn][f],
 318                                                  start, len);
 319                 }
 320                 if (showall || (!hide_unlock_fails && (ret[0] != ret[1]))) {
 321                         printf("unlock conn=%u fstype=%u f=%u range=%u:%u(%u)       -> %u:%u\n",
 322                                conn, fstype, f,
 323                                start, start+len-1, len,
 324                                ret[0], ret[1]);
 325                 }
 326                 if (showall) brl_forall(print_brl, NULL);
 327                 if (!hide_unlock_fails && ret[0] != ret[1]) return False;
 328         } else {
 329                 /* reopen the file */
 330                 for (server=0;server<NSERVERS;server++) {
 331                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 332                         fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 333                                                                  O_RDWR|O_CREAT);
 334                         if (fnum[server][fstype][conn][f] == -1) {
 335                                 printf("failed to reopen on share1\n");
 336                                 return False;
 337                         }
 338                 }
 339                 if (showall) {
 340                         printf("reopen conn=%u fstype=%u f=%u\n",
 341                                conn, fstype, f);
 342                         brl_forall(print_brl, NULL);
 343                 }
 344         }
 345         return True;
 346 }
 347
 348 static void close_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 349                         char *nfs[NSERVERS],
 350                         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 351 {
 352         int server, conn, f, fstype;
 353
 354         for (server=0;server<NSERVERS;server++)
 355         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 356         for (conn=0;conn<NCONNECTIONS;conn++)
 357         for (f=0;f<NFILES;f++) {
 358                 if (fnum[server][fstype][conn][f] != -1) {
 359                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 360                         fnum[server][fstype][conn][f] = -1;
 361                 }
 362         }
 363         for (server=0;server<NSERVERS;server++) {
 364                 cli_unlink(cli[server][0], FILENAME, FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN);
 365         }
 366 }
 367
 368 static void open_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 369                        char *nfs[NSERVERS],
 370                        int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 371 {
 372         int server, fstype, conn, f;
 373
 374         for (server=0;server<NSERVERS;server++)
 375         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 376         for (conn=0;conn<NCONNECTIONS;conn++)
 377         for (f=0;f<NFILES;f++) {
 378                 fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 379                                                          O_RDWR|O_CREAT);
 380                 if (fnum[server][fstype][conn][f] == -1) {
 381                         fprintf(stderr,"Failed to open fnum[%u][%u][%u][%u]\n",
 382                                 server, fstype, conn, f);
 383                         exit(1);
 384                 }
 385         }
 386 }
 387
 388
 389 static int retest(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 390                   char *nfs[NSERVERS],
 391                   int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 392                   int n)
 393 {
 394         int i;
 395         printf("testing %u ...\n", n);
 396         for (i=0; i<n; i++) {
 397                 if (i && i % 100 == 0) {
 398                         printf("%u\n", i);
 399                 }
 400
 401                 if (recorded[i].needed &&
 402                     !test_one(cli, nfs, fnum, &recorded[i])) return i;
 403         }
 404         return n;
 405 }
 406
 407
 408 /* each server has two connections open to it. Each connection has two file
 409    descriptors open on the file - 8 file descriptors in total
 410
 411    we then do random locking ops in tamdem on the 4 fnums from each
 412    server and ensure that the results match
 413  */
 414 static void test_locks(char *share1, char *share2, char *nfspath1, char *nfspath2)
 415 {
 416         struct cli_state *cli[NSERVERS][NCONNECTIONS];
 417         char *nfs[NSERVERS];
 418         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES];
 419         int n, i, n1;
 420
 421         nfs[0] = nfspath1;
 422         nfs[1] = nfspath2;
 423
 424         ZERO_STRUCT(fnum);
 425         ZERO_STRUCT(cli);
 426
 427         recorded = SMB_MALLOC_ARRAY(struct record, numops);
 428
 429         for (n=0; n<numops; n++) {
 430                 recorded[n].conn = random() % NCONNECTIONS;
 431                 recorded[n].fstype = random() % NUMFSTYPES;
 432                 recorded[n].f = random() % NFILES;
 433                 recorded[n].start = LOCKBASE + ((unsigned)random() % (LOCKRANGE-1));
 434                 recorded[n].len = 1 +
 435                         random() % (LOCKRANGE-(recorded[n].start-LOCKBASE));
 436                 recorded[n].start *= RANGE_MULTIPLE;
 437                 recorded[n].len *= RANGE_MULTIPLE;
 438                 recorded[n].r1 = random() % 100;
 439                 recorded[n].r2 = random() % 100;
 440                 recorded[n].needed = True;
 441         }
 442
 443         reconnect(cli, nfs, fnum, share1, share2);
 444         open_files(cli, nfs, fnum);
 445         n = retest(cli, nfs, fnum, numops);
 446
 447         if (n == numops || !analyze) return;
 448         n++;
 449
 450         while (1) {
 451                 n1 = n;
 452
 453                 close_files(cli, nfs, fnum);
 454                 reconnect(cli, nfs, fnum, share1, share2);
 455                 open_files(cli, nfs, fnum);
 456
 457                 for (i=0;i<n-1;i++) {
 458                         int m;
 459                         recorded[i].needed = False;
 460
 461                         close_files(cli, nfs, fnum);
 462                         open_files(cli, nfs, fnum);
 463
 464                         m = retest(cli, nfs, fnum, n);
 465                         if (m == n) {
 466                                 recorded[i].needed = True;
 467                         } else {
 468                                 if (i < m) {
 469                                         memmove(&recorded[i], &recorded[i+1],
 470                                                 (m-i)*sizeof(recorded[0]));
 471                                 }
 472                                 n = m;
 473                                 i--;
 474                         }
 475                 }
 476
 477                 if (n1 == n) break;
 478         }
 479
 480         close_files(cli, nfs, fnum);
 481         reconnect(cli, nfs, fnum, share1, share2);
 482         open_files(cli, nfs, fnum);
 483         showall = True;
 484         n1 = retest(cli, nfs, fnum, n);
 485         if (n1 != n-1) {
 486                 printf("ERROR - inconsistent result (%u %u)\n", n1, n);
 487         }
 488         close_files(cli, nfs, fnum);
 489
 490         for (i=0;i<n;i++) {
 491                 printf("{%u, %u, %u, %u, %u, %u, %u, %u},\n",
 492                        recorded[i].r1,
 493                        recorded[i].r2,
 494                        recorded[i].conn,
 495                        recorded[i].fstype,
 496                        recorded[i].f,
 497                        recorded[i].start,
 498                        recorded[i].len,
 499                        recorded[i].needed);
 500         }
 501 }
 502
 503
 504
 505 static void usage(void)
 506 {
 507         printf(
 508 "Usage:\n\
 509   locktest //server1/share1 //server2/share2 /path1 /path2 [options..]\n\
 510   options:\n\
 511         -U user%%pass\n\
 512         -s seed\n\
 513         -o numops\n\
 514         -u          hide unlock fails\n\
 515         -a          (show all ops)\n\
 516         -O          use oplocks\n\
 517 ");
 518 }
 519
 520 /****************************************************************************
 521   main program
 522 ****************************************************************************/
 523  int main(int argc,char *argv[])
 524 {
 525         char *share1, *share2, *nfspath1, *nfspath2;
 526         int opt;
 527         char *p;
 528         int seed;
 529
 530         setlinebuf(stdout);
 531
 532         if (argc < 5 || argv[1][0] == '-') {
 533                 usage();
 534                 exit(1);
 535         }
 536
 537         setup_logging(argv[0], DEBUG_STDOUT);
 538
 539         share1 = argv[1];
 540         share2 = argv[2];
 541         nfspath1 = argv[3];
 542         nfspath2 = argv[4];
 543
 544         all_string_sub(share1,"/","\\",0);
 545         all_string_sub(share2,"/","\\",0);
 546
 547         argc -= 4;
 548         argv += 4;
 549
 550         lp_load_global(get_dyn_CONFIGFILE());
 551         load_interfaces();
 552
 553         if (getenv("USER")) {
 554                 fstrcpy(username,getenv("USER"));
 555         }
 556
 557         seed = time(NULL);
 558
 559         while ((opt = getopt(argc, argv, "U:s:ho:aAW:O")) != EOF) {
 560                 switch (opt) {
 561                 case 'U':
 562                         fstrcpy(username,optarg);
 563                         p = strchr_m(username,'%');
 564                         if (p) {
 565                                 *p = 0;
 566                                 fstrcpy(password, p+1);
 567                                 got_pass = 1;
 568                         }
 569                         break;
 570                 case 's':
 571                         seed = atoi(optarg);
 572                         break;
 573                 case 'u':
 574                         hide_unlock_fails = True;
 575                         break;
 576                 case 'o':
 577                         numops = atoi(optarg);
 578                         break;
 579                 case 'O':
 580                         use_oplocks = True;
 581                         break;
 582                 case 'a':
 583                         showall = True;
 584                         break;
 585                 case 'A':
 586                         analyze = True;
 587                         break;
 588                 case 'h':
 589                         usage();
 590                         exit(1);
 591                 default:
 592                         printf("Unknown option %c (%d)\n", (char)opt, opt);
 593                         exit(1);
 594                 }
 595         }
 596
 597         argc -= optind;
 598         argv += optind;
 599
 600         DEBUG(0,("seed=%u\n", seed));
 601         srandom(seed);
 602
 603         locking_init_readonly();
 604         test_locks(share1, share2, nfspath1, nfspath2);
 605
 606         return(0);
 607 }