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