source4/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 {
 141         struct smbcli_state *c;
 142         char *server_n;
 143         fstring server;
 144         fstring myname;
 145         static int count;
 146         NTSTATUS nt_status;
 147
 148         fstrcpy(server,share+2);
 149         share = strchr_m(server,'\\');
 150         if (!share) return NULL;
 151         *share = 0;
 152         share++;
 153
 154         server_n = server;
 155
 156         if (!got_pass) {
 157                 char *pass = getpass("Password: ");
 158                 if (pass) {
 159                         fstrcpy(password, pass);
 160                 }
 161         }
 162
 163         slprintf(myname,sizeof(myname), "lock-%u-%u", getpid(), count++);
 164
 165         nt_status = smbcli_full_connection(NULL,
 166                                            &c, myname, server_n, ports, share, NULL,
 167                                            username, lp_workgroup(), password, NULL);
 168         if (!NT_STATUS_IS_OK(nt_status)) {
 169                 DEBUG(0, ("smbcli_full_connection failed with error %s\n", nt_errstr(nt_status)));
 170                 return NULL;
 171         }
 172
 173         c->use_oplocks = use_oplocks;
 174
 175         return c;
 176 }
 177
 178
 179 static void reconnect(struct smbcli_state *cli[NSERVERS][NCONNECTIONS],
 180                       char *nfs[NSERVERS],
 181                       int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 182                       const char **ports,
 183                       char *share1, char *share2)
 184 {
 185         int server, conn, f, fstype;
 186         char *share[2];
 187         share[0] = share1;
 188         share[1] = share2;
 189
 190         fstype = FSTYPE_SMB;
 191
 192         for (server=0;server<NSERVERS;server++)
 193         for (conn=0;conn<NCONNECTIONS;conn++) {
 194                 if (cli[server][conn]) {
 195                         for (f=0;f<NFILES;f++) {
 196                                 smbcli_close(cli[server][conn], fnum[server][fstype][conn][f]);
 197                         }
 198                         smbcli_ulogoff(cli[server][conn]);
 199                         talloc_free(cli[server][conn]);
 200                 }
 201                 cli[server][conn] = connect_one(share[server], ports);
 202                 if (!cli[server][conn]) {
 203                         DEBUG(0,("Failed to connect to %s\n", share[server]));
 204                         exit(1);
 205                 }
 206         }
 207 }
 208
 209
 210
 211 static bool test_one(struct smbcli_state *cli[NSERVERS][NCONNECTIONS],
 212                      char *nfs[NSERVERS],
 213                      int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 214                      struct record *rec)
 215 {
 216         uint_t conn = rec->conn;
 217         uint_t f = rec->f;
 218         uint_t fstype = rec->fstype;
 219         uint_t start = rec->start;
 220         uint_t len = rec->len;
 221         uint_t r1 = rec->r1;
 222         uint_t r2 = rec->r2;
 223         enum brl_type op;
 224         int server;
 225         bool ret[NSERVERS];
 226
 227         if (r1 < READ_PCT) {
 228                 op = READ_LOCK;
 229         } else {
 230                 op = WRITE_LOCK;
 231         }
 232
 233         if (r2 < LOCK_PCT) {
 234                 /* set a lock */
 235                 for (server=0;server<NSERVERS;server++) {
 236                         ret[server] = try_lock(cli[server][conn], fstype,
 237                                                fnum[server][fstype][conn][f],
 238                                                start, len, op);
 239                 }
 240                 if (showall || ret[0] != ret[1]) {
 241                         printf("lock   conn=%u fstype=%u f=%u range=%u:%u(%u) op=%s -> %u:%u\n",
 242                                conn, fstype, f,
 243                                start, start+len-1, len,
 244                                op==READ_LOCK?"READ_LOCK":"WRITE_LOCK",
 245                                ret[0], ret[1]);
 246                 }
 247                 if (ret[0] != ret[1]) return false;
 248         } else if (r2 < LOCK_PCT+UNLOCK_PCT) {
 249                 /* unset a lock */
 250                 for (server=0;server<NSERVERS;server++) {
 251                         ret[server] = try_unlock(cli[server][conn], fstype,
 252                                                  fnum[server][fstype][conn][f],
 253                                                  start, len);
 254                 }
 255                 if (showall || (!hide_unlock_fails && (ret[0] != ret[1]))) {
 256                         printf("unlock conn=%u fstype=%u f=%u range=%u:%u(%u)       -> %u:%u\n",
 257                                conn, fstype, f,
 258                                start, start+len-1, len,
 259                                ret[0], ret[1]);
 260                 }
 261                 if (!hide_unlock_fails && ret[0] != ret[1]) return false;
 262         } else {
 263                 /* reopen the file */
 264                 for (server=0;server<NSERVERS;server++) {
 265                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 266                         fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 267                                                                  O_RDWR|O_CREAT);
 268                         if (fnum[server][fstype][conn][f] == -1) {
 269                                 printf("failed to reopen on share1\n");
 270                                 return false;
 271                         }
 272                 }
 273                 if (showall) {
 274                         printf("reopen conn=%u fstype=%u f=%u\n",
 275                                conn, fstype, f);
 276                 }
 277         }
 278         return true;
 279 }
 280
 281 static void close_files(struct smbcli_state *cli[NSERVERS][NCONNECTIONS],
 282                         char *nfs[NSERVERS],
 283                         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 284 {
 285         int server, conn, f, fstype;
 286
 287         for (server=0;server<NSERVERS;server++)
 288         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 289         for (conn=0;conn<NCONNECTIONS;conn++)
 290         for (f=0;f<NFILES;f++) {
 291                 if (fnum[server][fstype][conn][f] != -1) {
 292                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 293                         fnum[server][fstype][conn][f] = -1;
 294                 }
 295         }
 296         for (server=0;server<NSERVERS;server++) {
 297                 smbcli_unlink(cli[server][0], FILENAME);
 298         }
 299 }
 300
 301 static void open_files(struct smbcli_state *cli[NSERVERS][NCONNECTIONS],
 302                        char *nfs[NSERVERS],
 303                        int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 304 {
 305         int server, fstype, conn, f;
 306
 307         for (server=0;server<NSERVERS;server++)
 308         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 309         for (conn=0;conn<NCONNECTIONS;conn++)
 310         for (f=0;f<NFILES;f++) {
 311                 fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 312                                                          O_RDWR|O_CREAT);
 313                 if (fnum[server][fstype][conn][f] == -1) {
 314                         fprintf(stderr,"Failed to open fnum[%u][%u][%u][%u]\n",
 315                                 server, fstype, conn, f);
 316                         exit(1);
 317                 }
 318         }
 319 }
 320
 321
 322 static int retest(struct smbcli_state *cli[NSERVERS][NCONNECTIONS],
 323                   char *nfs[NSERVERS],
 324                   int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 325                   int n)
 326 {
 327         int i;
 328         printf("testing %u ...\n", n);
 329         for (i=0; i<n; i++) {
 330                 if (i && i % 100 == 0) {
 331                         printf("%u\n", i);
 332                 }
 333
 334                 if (recorded[i].needed &&
 335                     !test_one(cli, nfs, fnum, &recorded[i])) return i;
 336         }
 337         return n;
 338 }
 339
 340
 341 /* each server has two connections open to it. Each connection has two file
 342    descriptors open on the file - 8 file descriptors in total
 343
 344    we then do random locking ops in tamdem on the 4 fnums from each
 345    server and ensure that the results match
 346  */
 347 static void test_locks(char *share1, char *share2, char *nfspath1, char *nfspath2, const char **ports)
 348 {
 349         struct smbcli_state *cli[NSERVERS][NCONNECTIONS];
 350         char *nfs[NSERVERS];
 351         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES];
 352         int n, i, n1;
 353
 354         nfs[0] = nfspath1;
 355         nfs[1] = nfspath2;
 356
 357         ZERO_STRUCT(fnum);
 358         ZERO_STRUCT(cli);
 359
 360         recorded = malloc_array_p(struct record, numops);
 361
 362         for (n=0; n<numops; n++) {
 363                 recorded[n].conn = random() % NCONNECTIONS;
 364                 recorded[n].fstype = random() % NUMFSTYPES;
 365                 recorded[n].f = random() % NFILES;
 366                 recorded[n].start = LOCKBASE + ((uint_t)random() % (LOCKRANGE-1));
 367                 recorded[n].len = 1 +
 368                         random() % (LOCKRANGE-(recorded[n].start-LOCKBASE));
 369                 recorded[n].start *= RANGE_MULTIPLE;
 370                 recorded[n].len *= RANGE_MULTIPLE;
 371                 recorded[n].r1 = random() % 100;
 372                 recorded[n].r2 = random() % 100;
 373                 recorded[n].needed = true;
 374         }
 375
 376         reconnect(cli, nfs, fnum, share1, share2, ports);
 377         open_files(cli, nfs, fnum);
 378         n = retest(cli, nfs, fnum, numops);
 379
 380         if (n == numops || !analyze) return;
 381         n++;
 382
 383         while (1) {
 384                 n1 = n;
 385
 386                 close_files(cli, nfs, fnum);
 387                 reconnect(cli, nfs, fnum, share1, share2, ports);
 388                 open_files(cli, nfs, fnum);
 389
 390                 for (i=0;i<n-1;i++) {
 391                         int m;
 392                         recorded[i].needed = false;
 393
 394                         close_files(cli, nfs, fnum);
 395                         open_files(cli, nfs, fnum);
 396
 397                         m = retest(cli, nfs, fnum, n);
 398                         if (m == n) {
 399                                 recorded[i].needed = true;
 400                         } else {
 401                                 if (i < m) {
 402                                         memmove(&recorded[i], &recorded[i+1],
 403                                                 (m-i)*sizeof(recorded[0]));
 404                                 }
 405                                 n = m;
 406                                 i--;
 407                         }
 408                 }
 409
 410                 if (n1 == n) break;
 411         }
 412
 413         close_files(cli, nfs, fnum);
 414         reconnect(cli, nfs, fnum, share1, share2, ports);
 415         open_files(cli, nfs, fnum);
 416         showall = true;
 417         n1 = retest(cli, nfs, fnum, n);
 418         if (n1 != n-1) {
 419                 printf("ERROR - inconsistent result (%u %u)\n", n1, n);
 420         }
 421         close_files(cli, nfs, fnum);
 422
 423         for (i=0;i<n;i++) {
 424                 printf("{%u, %u, %u, %u, %u, %u, %u, %u},\n",
 425                        recorded[i].r1,
 426                        recorded[i].r2,
 427                        recorded[i].conn,
 428                        recorded[i].fstype,
 429                        recorded[i].f,
 430                        recorded[i].start,
 431                        recorded[i].len,
 432                        recorded[i].needed);
 433         }
 434 }
 435
 436
 437
 438 static void usage(void)
 439 {
 440         printf(
 441 "Usage:\n\
 442   locktest //server1/share1 //server2/share2 /path1 /path2 [options..]\n\
 443   options:\n\
 444         -U user%%pass\n\
 445         -s seed\n\
 446         -o numops\n\
 447         -u          hide unlock fails\n\
 448         -a          (show all ops)\n\
 449         -O          use oplocks\n\
 450 ");
 451 }
 452
 453 /****************************************************************************
 454   main program
 455 ****************************************************************************/
 456  int main(int argc,char *argv[])
 457 {
 458         char *share1, *share2, *nfspath1, *nfspath2;
 459         extern char *optarg;
 460         extern int optind;
 461         int opt;
 462         char *p;
 463         int seed;
 464         struct loadparm_context *lp_ctx;
 465
 466         setlinebuf(stdout);
 467
 468         dbf = x_stderr;
 469
 470         if (argc < 5 || argv[1][0] == '-') {
 471                 usage();
 472                 exit(1);
 473         }
 474
 475         share1 = argv[1];
 476         share2 = argv[2];
 477         nfspath1 = argv[3];
 478         nfspath2 = argv[4];
 479
 480         all_string_sub(share1,"/","\\",0);
 481         all_string_sub(share2,"/","\\",0);
 482
 483         setup_logging(argv[0], DEBUG_STDOUT);
 484
 485         argc -= 4;
 486         argv += 4;
 487
 488         lp_ctx = loadparm_init(talloc_autofree_context());
 489         lp_load(lp_ctx, dyn_CONFIGFILE);
 490
 491         if (getenv("USER")) {
 492                 fstrcpy(username,getenv("USER"));
 493         }
 494
 495         seed = time(NULL);
 496
 497         while ((opt = getopt(argc, argv, "U:s:ho:aAW:O")) != EOF) {
 498                 switch (opt) {
 499                 case 'U':
 500                         fstrcpy(username,optarg);
 501                         p = strchr_m(username,'%');
 502                         if (p) {
 503                                 *p = 0;
 504                                 fstrcpy(password, p+1);
 505                                 got_pass = 1;
 506                         }
 507                         break;
 508                 case 's':
 509                         seed = atoi(optarg);
 510                         break;
 511                 case 'u':
 512                         hide_unlock_fails = true;
 513                         break;
 514                 case 'o':
 515                         numops = atoi(optarg);
 516                         break;
 517                 case 'O':
 518                         use_oplocks = true;
 519                         break;
 520                 case 'a':
 521                         showall = true;
 522                         break;
 523                 case 'A':
 524                         analyze = true;
 525                         break;
 526                 case 'h':
 527                         usage();
 528                         exit(1);
 529                 default:
 530                         printf("Unknown option %c (%d)\n", (char)opt, opt);
 531                         exit(1);
 532                 }
 533         }
 534
 535         argc -= optind;
 536         argv += optind;
 537
 538         DEBUG(0,("seed=%u\n", seed));
 539         srandom(seed);
 540
 541         locking_init(1);
 542         test_locks(share1, share2, nfspath1, nfspath2, lp_smb_ports(lp_ctx));
 543
 544         return(0);
 545 }