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(NULL,
 223                                               &c,
 224                                               myname,
 225                                               server_n,
 226                                               NULL,
 227                                               0,
 228                                               share,
 229                                               "?????",
 230                                               creds,
 231                                               0);
 232         TALLOC_FREE(creds);
 233         if (!NT_STATUS_IS_OK(nt_status)) {
 234                 DEBUG(0, ("cli_full_connection failed with error %s\n", nt_errstr(nt_status)));
 235                 return NULL;
 236         }
 237
 238         c->use_oplocks = use_oplocks;
 239
 240         return c;
 241 }
 242
 243
 244 static void reconnect(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 245                       char *nfs[NSERVERS],
 246                       int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 247                       char *share1, char *share2)
 248 {
 249         int server, conn, f, fstype;
 250         char *share[2];
 251         share[0] = share1;
 252         share[1] = share2;
 253
 254         fstype = FSTYPE_SMB;
 255
 256         for (server=0;server<NSERVERS;server++)
 257         for (conn=0;conn<NCONNECTIONS;conn++) {
 258                 if (cli[server][conn]) {
 259                         for (f=0;f<NFILES;f++) {
 260                                 cli_close(cli[server][conn], fnum[server][fstype][conn][f]);
 261                         }
 262                         cli_ulogoff(cli[server][conn]);
 263                         cli_shutdown(cli[server][conn]);
 264                 }
 265                 cli[server][conn] = connect_one(share[server]);
 266                 if (!cli[server][conn]) {
 267                         DEBUG(0,("Failed to connect to %s\n", share[server]));
 268                         exit(1);
 269                 }
 270         }
 271 }
 272
 273
 274
 275 static bool test_one(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 276                      char *nfs[NSERVERS],
 277                      int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 278                      struct record *rec)
 279 {
 280         unsigned conn = rec->conn;
 281         unsigned f = rec->f;
 282         unsigned fstype = rec->fstype;
 283         unsigned start = rec->start;
 284         unsigned len = rec->len;
 285         unsigned r1 = rec->r1;
 286         unsigned r2 = rec->r2;
 287         enum brl_type op;
 288         int server;
 289         bool ret[NSERVERS];
 290
 291         if (r1 < READ_PCT) {
 292                 op = READ_LOCK;
 293         } else {
 294                 op = WRITE_LOCK;
 295         }
 296
 297         if (fstype >= NUMFSTYPES) {
 298                 return false;
 299         }
 300
 301         if (r2 < LOCK_PCT) {
 302                 /* set a lock */
 303                 for (server=0;server<NSERVERS;server++) {
 304                         ret[server] = try_lock(cli[server][conn], fstype,
 305                                                fnum[server][fstype][conn][f],
 306                                                start, len, op);
 307                 }
 308                 if (showall || ret[0] != ret[1]) {
 309                         printf("lock   conn=%u fstype=%u f=%u range=%u:%u(%u) op=%s -> %u:%u\n",
 310                                conn, fstype, f,
 311                                start, start+len-1, len,
 312                                op==READ_LOCK?"READ_LOCK":"WRITE_LOCK",
 313                                ret[0], ret[1]);
 314                 }
 315                 if (showall) brl_forall(print_brl, NULL);
 316                 if (ret[0] != ret[1]) return False;
 317         } else if (r2 < LOCK_PCT+UNLOCK_PCT) {
 318                 /* unset a lock */
 319                 for (server=0;server<NSERVERS;server++) {
 320                         ret[server] = try_unlock(cli[server][conn], fstype,
 321                                                  fnum[server][fstype][conn][f],
 322                                                  start, len);
 323                 }
 324                 if (showall || (!hide_unlock_fails && (ret[0] != ret[1]))) {
 325                         printf("unlock conn=%u fstype=%u f=%u range=%u:%u(%u)       -> %u:%u\n",
 326                                conn, fstype, f,
 327                                start, start+len-1, len,
 328                                ret[0], ret[1]);
 329                 }
 330                 if (showall) brl_forall(print_brl, NULL);
 331                 if (!hide_unlock_fails && ret[0] != ret[1]) return False;
 332         } else {
 333                 /* reopen the file */
 334                 for (server=0;server<NSERVERS;server++) {
 335                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 336                         fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 337                                                                  O_RDWR|O_CREAT);
 338                         if (fnum[server][fstype][conn][f] == -1) {
 339                                 printf("failed to reopen on share1\n");
 340                                 return False;
 341                         }
 342                 }
 343                 if (showall) {
 344                         printf("reopen conn=%u fstype=%u f=%u\n",
 345                                conn, fstype, f);
 346                         brl_forall(print_brl, NULL);
 347                 }
 348         }
 349         return True;
 350 }
 351
 352 static void close_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 353                         char *nfs[NSERVERS],
 354                         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 355 {
 356         int server, conn, f, fstype;
 357
 358         for (server=0;server<NSERVERS;server++)
 359         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 360         for (conn=0;conn<NCONNECTIONS;conn++)
 361         for (f=0;f<NFILES;f++) {
 362                 if (fnum[server][fstype][conn][f] != -1) {
 363                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 364                         fnum[server][fstype][conn][f] = -1;
 365                 }
 366         }
 367         for (server=0;server<NSERVERS;server++) {
 368                 cli_unlink(cli[server][0], FILENAME, FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN);
 369         }
 370 }
 371
 372 static void open_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 373                        char *nfs[NSERVERS],
 374                        int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 375 {
 376         int server, fstype, conn, f;
 377
 378         for (server=0;server<NSERVERS;server++)
 379         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 380         for (conn=0;conn<NCONNECTIONS;conn++)
 381         for (f=0;f<NFILES;f++) {
 382                 fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 383                                                          O_RDWR|O_CREAT);
 384                 if (fnum[server][fstype][conn][f] == -1) {
 385                         fprintf(stderr,"Failed to open fnum[%u][%u][%u][%u]\n",
 386                                 server, fstype, conn, f);
 387                         exit(1);
 388                 }
 389         }
 390 }
 391
 392
 393 static int retest(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 394                   char *nfs[NSERVERS],
 395                   int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 396                   int n)
 397 {
 398         int i;
 399         printf("testing %u ...\n", n);
 400         for (i=0; i<n; i++) {
 401                 if (i && i % 100 == 0) {
 402                         printf("%u\n", i);
 403                 }
 404
 405                 if (recorded[i].needed &&
 406                     !test_one(cli, nfs, fnum, &recorded[i])) return i;
 407         }
 408         return n;
 409 }
 410
 411
 412 /* each server has two connections open to it. Each connection has two file
 413    descriptors open on the file - 8 file descriptors in total
 414
 415    we then do random locking ops in tamdem on the 4 fnums from each
 416    server and ensure that the results match
 417  */
 418 static void test_locks(char *share1, char *share2, char *nfspath1, char *nfspath2)
 419 {
 420         struct cli_state *cli[NSERVERS][NCONNECTIONS];
 421         char *nfs[NSERVERS];
 422         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES];
 423         int n, i, n1;
 424
 425         nfs[0] = nfspath1;
 426         nfs[1] = nfspath2;
 427
 428         ZERO_STRUCT(fnum);
 429         ZERO_STRUCT(cli);
 430
 431         recorded = SMB_MALLOC_ARRAY(struct record, numops);
 432
 433         for (n=0; n<numops; n++) {
 434                 recorded[n].conn = random() % NCONNECTIONS;
 435                 recorded[n].fstype = random() % NUMFSTYPES;
 436                 recorded[n].f = random() % NFILES;
 437                 recorded[n].start = LOCKBASE + ((unsigned)random() % (LOCKRANGE-1));
 438                 recorded[n].len = 1 +
 439                         random() % (LOCKRANGE-(recorded[n].start-LOCKBASE));
 440                 recorded[n].start *= RANGE_MULTIPLE;
 441                 recorded[n].len *= RANGE_MULTIPLE;
 442                 recorded[n].r1 = random() % 100;
 443                 recorded[n].r2 = random() % 100;
 444                 recorded[n].needed = True;
 445         }
 446
 447         reconnect(cli, nfs, fnum, share1, share2);
 448         open_files(cli, nfs, fnum);
 449         n = retest(cli, nfs, fnum, numops);
 450
 451         if (n == numops || !analyze) return;
 452         n++;
 453
 454         while (1) {
 455                 n1 = n;
 456
 457                 close_files(cli, nfs, fnum);
 458                 reconnect(cli, nfs, fnum, share1, share2);
 459                 open_files(cli, nfs, fnum);
 460
 461                 for (i=0;i<n-1;i++) {
 462                         int m;
 463                         recorded[i].needed = False;
 464
 465                         close_files(cli, nfs, fnum);
 466                         open_files(cli, nfs, fnum);
 467
 468                         m = retest(cli, nfs, fnum, n);
 469                         if (m == n) {
 470                                 recorded[i].needed = True;
 471                         } else {
 472                                 if (i < m) {
 473                                         memmove(&recorded[i], &recorded[i+1],
 474                                                 (m-i)*sizeof(recorded[0]));
 475                                 }
 476                                 n = m;
 477                                 i--;
 478                         }
 479                 }
 480
 481                 if (n1 == n) break;
 482         }
 483
 484         close_files(cli, nfs, fnum);
 485         reconnect(cli, nfs, fnum, share1, share2);
 486         open_files(cli, nfs, fnum);
 487         showall = True;
 488         n1 = retest(cli, nfs, fnum, n);
 489         if (n1 != n-1) {
 490                 printf("ERROR - inconsistent result (%u %u)\n", n1, n);
 491         }
 492         close_files(cli, nfs, fnum);
 493
 494         for (i=0;i<n;i++) {
 495                 printf("{%u, %u, %u, %u, %u, %u, %u, %u},\n",
 496                        recorded[i].r1,
 497                        recorded[i].r2,
 498                        recorded[i].conn,
 499                        recorded[i].fstype,
 500                        recorded[i].f,
 501                        recorded[i].start,
 502                        recorded[i].len,
 503                        recorded[i].needed);
 504         }
 505 }
 506
 507
 508
 509 static void usage(void)
 510 {
 511         printf(
 512 "Usage:\n\
 513   locktest //server1/share1 //server2/share2 /path1 /path2 [options..]\n\
 514   options:\n\
 515         -U user%%pass\n\
 516         -s seed\n\
 517         -o numops\n\
 518         -u          hide unlock fails\n\
 519         -a          (show all ops)\n\
 520         -O          use oplocks\n\
 521 ");
 522 }
 523
 524 /****************************************************************************
 525   main program
 526 ****************************************************************************/
 527  int main(int argc,char *argv[])
 528 {
 529         char *share1, *share2, *nfspath1, *nfspath2;
 530         int opt;
 531         char *p;
 532         int seed;
 533
 534         setlinebuf(stdout);
 535
 536         if (argc < 5 || argv[1][0] == '-') {
 537                 usage();
 538                 exit(1);
 539         }
 540
 541         setup_logging(argv[0], DEBUG_STDOUT);
 542
 543         share1 = argv[1];
 544         share2 = argv[2];
 545         nfspath1 = argv[3];
 546         nfspath2 = argv[4];
 547
 548         all_string_sub(share1,"/","\\",0);
 549         all_string_sub(share2,"/","\\",0);
 550
 551         argc -= 4;
 552         argv += 4;
 553
 554         lp_load_global(get_dyn_CONFIGFILE());
 555         load_interfaces();
 556
 557         if (getenv("USER")) {
 558                 fstrcpy(username,getenv("USER"));
 559         }
 560
 561         seed = time(NULL);
 562
 563         while ((opt = getopt(argc, argv, "U:s:ho:aAW:O")) != EOF) {
 564                 switch (opt) {
 565                 case 'U':
 566                         fstrcpy(username,optarg);
 567                         p = strchr_m(username,'%');
 568                         if (p) {
 569                                 *p = 0;
 570                                 fstrcpy(password, p+1);
 571                                 got_pass = 1;
 572                         }
 573                         break;
 574                 case 's':
 575                         seed = atoi(optarg);
 576                         break;
 577                 case 'u':
 578                         hide_unlock_fails = True;
 579                         break;
 580                 case 'o':
 581                         numops = atoi(optarg);
 582                         break;
 583                 case 'O':
 584                         use_oplocks = True;
 585                         break;
 586                 case 'a':
 587                         showall = True;
 588                         break;
 589                 case 'A':
 590                         analyze = True;
 591                         break;
 592                 case 'h':
 593                         usage();
 594                         exit(1);
 595                 default:
 596                         printf("Unknown option %c (%d)\n", (char)opt, opt);
 597                         exit(1);
 598                 }
 599         }
 600
 601         argc -= optind;
 602         argv += optind;
 603
 604         DEBUG(0,("seed=%u\n", seed));
 605         srandom(seed);
 606
 607         locking_init_readonly();
 608         test_locks(share1, share2, nfspath1, nfspath2);
 609
 610         return(0);
 611 }