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