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