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