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         bool use_kerberos = false;
 183         bool fallback_after_kerberos = false;
 184         bool use_ccache = false;
 185         bool pw_nt_hash = false;
 186         struct cli_credentials *creds = NULL;
 187
 188         fstrcpy(server,share+2);
 189         share = strchr_m(server,'\\');
 190         if (!share) return NULL;
 191         *share = 0;
 192         share++;
 193
 194         server_n = server;
 195
 196         if (!got_pass) {
 197                 char pwd[256] = {0};
 198                 int rc;
 199
 200                 rc = samba_getpass("Password: ", pwd, sizeof(pwd), false, false);
 201                 if (rc == 0) {
 202                         fstrcpy(password, pwd);
 203                 }
 204         }
 205
 206         creds = cli_session_creds_init(NULL,
 207                                        username,
 208                                        lp_workgroup(),
 209                                        NULL, /* realm (use default) */
 210                                        password,
 211                                        use_kerberos,
 212                                        fallback_after_kerberos,
 213                                        use_ccache,
 214                                        pw_nt_hash);
 215         if (creds == NULL) {
 216                 DEBUG(0, ("cli_session_creds_init failed\n"));
 217                 return NULL;
 218         }
 219
 220         slprintf(myname,sizeof(myname), "lock-%lu-%u", (unsigned long)getpid(), count++);
 221
 222         nt_status = cli_full_connection_creds(&c,
 223                                               myname,
 224                                               server_n,
 225                                               NULL,
 226                                               0,
 227                                               share,
 228                                               "?????",
 229                                               creds,
 230                                               0);
 231         TALLOC_FREE(creds);
 232         if (!NT_STATUS_IS_OK(nt_status)) {
 233                 DEBUG(0, ("cli_full_connection failed with error %s\n", nt_errstr(nt_status)));
 234                 return NULL;
 235         }
 236
 237         c->use_oplocks = use_oplocks;
 238
 239         return c;
 240 }
 241
 242
 243 static void reconnect(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 244                       char *nfs[NSERVERS],
 245                       int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 246                       char *share1, char *share2)
 247 {
 248         int server, conn, f, fstype;
 249         char *share[2];
 250         share[0] = share1;
 251         share[1] = share2;
 252
 253         fstype = FSTYPE_SMB;
 254
 255         for (server=0;server<NSERVERS;server++)
 256         for (conn=0;conn<NCONNECTIONS;conn++) {
 257                 if (cli[server][conn]) {
 258                         for (f=0;f<NFILES;f++) {
 259                                 cli_close(cli[server][conn], fnum[server][fstype][conn][f]);
 260                         }
 261                         cli_ulogoff(cli[server][conn]);
 262                         cli_shutdown(cli[server][conn]);
 263                 }
 264                 cli[server][conn] = connect_one(share[server]);
 265                 if (!cli[server][conn]) {
 266                         DEBUG(0,("Failed to connect to %s\n", share[server]));
 267                         exit(1);
 268                 }
 269         }
 270 }
 271
 272
 273
 274 static bool test_one(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 275                      char *nfs[NSERVERS],
 276                      int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 277                      struct record *rec)
 278 {
 279         unsigned conn = rec->conn;
 280         unsigned f = rec->f;
 281         unsigned fstype = rec->fstype;
 282         unsigned start = rec->start;
 283         unsigned len = rec->len;
 284         unsigned r1 = rec->r1;
 285         unsigned r2 = rec->r2;
 286         enum brl_type op;
 287         int server;
 288         bool ret[NSERVERS];
 289
 290         if (r1 < READ_PCT) {
 291                 op = READ_LOCK;
 292         } else {
 293                 op = WRITE_LOCK;
 294         }
 295
 296         if (r2 < LOCK_PCT) {
 297                 /* set a lock */
 298                 for (server=0;server<NSERVERS;server++) {
 299                         ret[server] = try_lock(cli[server][conn], fstype,
 300                                                fnum[server][fstype][conn][f],
 301                                                start, len, op);
 302                 }
 303                 if (showall || ret[0] != ret[1]) {
 304                         printf("lock   conn=%u fstype=%u f=%u range=%u:%u(%u) op=%s -> %u:%u\n",
 305                                conn, fstype, f,
 306                                start, start+len-1, len,
 307                                op==READ_LOCK?"READ_LOCK":"WRITE_LOCK",
 308                                ret[0], ret[1]);
 309                 }
 310                 if (showall) brl_forall(print_brl, NULL);
 311                 if (ret[0] != ret[1]) return False;
 312         } else if (r2 < LOCK_PCT+UNLOCK_PCT) {
 313                 /* unset a lock */
 314                 for (server=0;server<NSERVERS;server++) {
 315                         ret[server] = try_unlock(cli[server][conn], fstype,
 316                                                  fnum[server][fstype][conn][f],
 317                                                  start, len);
 318                 }
 319                 if (showall || (!hide_unlock_fails && (ret[0] != ret[1]))) {
 320                         printf("unlock conn=%u fstype=%u f=%u range=%u:%u(%u)       -> %u:%u\n",
 321                                conn, fstype, f,
 322                                start, start+len-1, len,
 323                                ret[0], ret[1]);
 324                 }
 325                 if (showall) brl_forall(print_brl, NULL);
 326                 if (!hide_unlock_fails && ret[0] != ret[1]) return False;
 327         } else {
 328                 /* reopen the file */
 329                 for (server=0;server<NSERVERS;server++) {
 330                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 331                         fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 332                                                                  O_RDWR|O_CREAT);
 333                         if (fnum[server][fstype][conn][f] == -1) {
 334                                 printf("failed to reopen on share1\n");
 335                                 return False;
 336                         }
 337                 }
 338                 if (showall) {
 339                         printf("reopen conn=%u fstype=%u f=%u\n",
 340                                conn, fstype, f);
 341                         brl_forall(print_brl, NULL);
 342                 }
 343         }
 344         return True;
 345 }
 346
 347 static void close_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 348                         char *nfs[NSERVERS],
 349                         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 350 {
 351         int server, conn, f, fstype;
 352
 353         for (server=0;server<NSERVERS;server++)
 354         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 355         for (conn=0;conn<NCONNECTIONS;conn++)
 356         for (f=0;f<NFILES;f++) {
 357                 if (fnum[server][fstype][conn][f] != -1) {
 358                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 359                         fnum[server][fstype][conn][f] = -1;
 360                 }
 361         }
 362         for (server=0;server<NSERVERS;server++) {
 363                 cli_unlink(cli[server][0], FILENAME, FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN);
 364         }
 365 }
 366
 367 static void open_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 368                        char *nfs[NSERVERS],
 369                        int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 370 {
 371         int server, fstype, conn, f;
 372
 373         for (server=0;server<NSERVERS;server++)
 374         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 375         for (conn=0;conn<NCONNECTIONS;conn++)
 376         for (f=0;f<NFILES;f++) {
 377                 fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 378                                                          O_RDWR|O_CREAT);
 379                 if (fnum[server][fstype][conn][f] == -1) {
 380                         fprintf(stderr,"Failed to open fnum[%u][%u][%u][%u]\n",
 381                                 server, fstype, conn, f);
 382                         exit(1);
 383                 }
 384         }
 385 }
 386
 387
 388 static int retest(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 389                   char *nfs[NSERVERS],
 390                   int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 391                   int n)
 392 {
 393         int i;
 394         printf("testing %u ...\n", n);
 395         for (i=0; i<n; i++) {
 396                 if (i && i % 100 == 0) {
 397                         printf("%u\n", i);
 398                 }
 399
 400                 if (recorded[i].needed &&
 401                     !test_one(cli, nfs, fnum, &recorded[i])) return i;
 402         }
 403         return n;
 404 }
 405
 406
 407 /* each server has two connections open to it. Each connection has two file
 408    descriptors open on the file - 8 file descriptors in total
 409
 410    we then do random locking ops in tamdem on the 4 fnums from each
 411    server and ensure that the results match
 412  */
 413 static void test_locks(char *share1, char *share2, char *nfspath1, char *nfspath2)
 414 {
 415         struct cli_state *cli[NSERVERS][NCONNECTIONS];
 416         char *nfs[NSERVERS];
 417         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES];
 418         int n, i, n1;
 419
 420         nfs[0] = nfspath1;
 421         nfs[1] = nfspath2;
 422
 423         ZERO_STRUCT(fnum);
 424         ZERO_STRUCT(cli);
 425
 426         recorded = SMB_MALLOC_ARRAY(struct record, numops);
 427
 428         for (n=0; n<numops; n++) {
 429                 recorded[n].conn = random() % NCONNECTIONS;
 430                 recorded[n].fstype = random() % NUMFSTYPES;
 431                 recorded[n].f = random() % NFILES;
 432                 recorded[n].start = LOCKBASE + ((unsigned)random() % (LOCKRANGE-1));
 433                 recorded[n].len = 1 +
 434                         random() % (LOCKRANGE-(recorded[n].start-LOCKBASE));
 435                 recorded[n].start *= RANGE_MULTIPLE;
 436                 recorded[n].len *= RANGE_MULTIPLE;
 437                 recorded[n].r1 = random() % 100;
 438                 recorded[n].r2 = random() % 100;
 439                 recorded[n].needed = True;
 440         }
 441
 442         reconnect(cli, nfs, fnum, share1, share2);
 443         open_files(cli, nfs, fnum);
 444         n = retest(cli, nfs, fnum, numops);
 445
 446         if (n == numops || !analyze) return;
 447         n++;
 448
 449         while (1) {
 450                 n1 = n;
 451
 452                 close_files(cli, nfs, fnum);
 453                 reconnect(cli, nfs, fnum, share1, share2);
 454                 open_files(cli, nfs, fnum);
 455
 456                 for (i=0;i<n-1;i++) {
 457                         int m;
 458                         recorded[i].needed = False;
 459
 460                         close_files(cli, nfs, fnum);
 461                         open_files(cli, nfs, fnum);
 462
 463                         m = retest(cli, nfs, fnum, n);
 464                         if (m == n) {
 465                                 recorded[i].needed = True;
 466                         } else {
 467                                 if (i < m) {
 468                                         memmove(&recorded[i], &recorded[i+1],
 469                                                 (m-i)*sizeof(recorded[0]));
 470                                 }
 471                                 n = m;
 472                                 i--;
 473                         }
 474                 }
 475
 476                 if (n1 == n) break;
 477         }
 478
 479         close_files(cli, nfs, fnum);
 480         reconnect(cli, nfs, fnum, share1, share2);
 481         open_files(cli, nfs, fnum);
 482         showall = True;
 483         n1 = retest(cli, nfs, fnum, n);
 484         if (n1 != n-1) {
 485                 printf("ERROR - inconsistent result (%u %u)\n", n1, n);
 486         }
 487         close_files(cli, nfs, fnum);
 488
 489         for (i=0;i<n;i++) {
 490                 printf("{%u, %u, %u, %u, %u, %u, %u, %u},\n",
 491                        recorded[i].r1,
 492                        recorded[i].r2,
 493                        recorded[i].conn,
 494                        recorded[i].fstype,
 495                        recorded[i].f,
 496                        recorded[i].start,
 497                        recorded[i].len,
 498                        recorded[i].needed);
 499         }
 500 }
 501
 502
 503
 504 static void usage(void)
 505 {
 506         printf(
 507 "Usage:\n\
 508   locktest //server1/share1 //server2/share2 /path1 /path2 [options..]\n\
 509   options:\n\
 510         -U user%%pass\n\
 511         -s seed\n\
 512         -o numops\n\
 513         -u          hide unlock fails\n\
 514         -a          (show all ops)\n\
 515         -O          use oplocks\n\
 516 ");
 517 }
 518
 519 /****************************************************************************
 520   main program
 521 ****************************************************************************/
 522  int main(int argc,char *argv[])
 523 {
 524         char *share1, *share2, *nfspath1, *nfspath2;
 525         int opt;
 526         char *p;
 527         int seed;
 528
 529         setlinebuf(stdout);
 530
 531         if (argc < 5 || argv[1][0] == '-') {
 532                 usage();
 533                 exit(1);
 534         }
 535
 536         setup_logging(argv[0], DEBUG_STDOUT);
 537
 538         share1 = argv[1];
 539         share2 = argv[2];
 540         nfspath1 = argv[3];
 541         nfspath2 = argv[4];
 542
 543         all_string_sub(share1,"/","\\",0);
 544         all_string_sub(share2,"/","\\",0);
 545
 546         argc -= 4;
 547         argv += 4;
 548
 549         lp_load_global(get_dyn_CONFIGFILE());
 550         load_interfaces();
 551
 552         if (getenv("USER")) {
 553                 fstrcpy(username,getenv("USER"));
 554         }
 555
 556         seed = time(NULL);
 557
 558         while ((opt = getopt(argc, argv, "U:s:ho:aAW:O")) != EOF) {
 559                 switch (opt) {
 560                 case 'U':
 561                         fstrcpy(username,optarg);
 562                         p = strchr_m(username,'%');
 563                         if (p) {
 564                                 *p = 0;
 565                                 fstrcpy(password, p+1);
 566                                 got_pass = 1;
 567                         }
 568                         break;
 569                 case 's':
 570                         seed = atoi(optarg);
 571                         break;
 572                 case 'u':
 573                         hide_unlock_fails = True;
 574                         break;
 575                 case 'o':
 576                         numops = atoi(optarg);
 577                         break;
 578                 case 'O':
 579                         use_oplocks = True;
 580                         break;
 581                 case 'a':
 582                         showall = True;
 583                         break;
 584                 case 'A':
 585                         analyze = True;
 586                         break;
 587                 case 'h':
 588                         usage();
 589                         exit(1);
 590                 default:
 591                         printf("Unknown option %c (%d)\n", (char)opt, opt);
 592                         exit(1);
 593                 }
 594         }
 595
 596         argc -= optind;
 597         argv += optind;
 598
 599         DEBUG(0,("seed=%u\n", seed));
 600         srandom(seed);
 601
 602         locking_init_readonly();
 603         test_locks(share1, share2, nfspath1, nfspath2);
 604
 605         return(0);
 606 }