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 2 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, write to the Free Software
  18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #include "includes.h"
  22 #include "system/passwd.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 #define FILENAME "\\locktest.dat"
  34 #define LOCKRANGE 100
  35 #define LOCKBASE 0
  36
  37 /*
  38 #define LOCKBASE (0x40000000 - 50)
  39 */
  40
  41 #define READ_PCT 50
  42 #define LOCK_PCT 25
  43 #define UNLOCK_PCT 65
  44 #define RANGE_MULTIPLE 1
  45
  46 #define NSERVERS 2
  47 #define NCONNECTIONS 2
  48 #define NUMFSTYPES 2
  49 #define NFILES 2
  50 #define LOCK_TIMEOUT 0
  51
  52 #define FSTYPE_SMB 0
  53 #define FSTYPE_NFS 1
  54
  55 struct record {
  56         char r1, r2;
  57         char conn, f, fstype;
  58         uint_t start, len;
  59         char needed;
  60 };
  61
  62 static struct record *recorded;
  63
  64 static int try_open(struct smbcli_state *c, char *nfs, int fstype, const char *fname, int flags)
  65 {
  66         pstring path;
  67
  68         switch (fstype) {
  69         case FSTYPE_SMB:
  70                 return smbcli_open(c, fname, flags, DENY_NONE);
  71
  72         case FSTYPE_NFS:
  73                 slprintf(path, sizeof(path), "%s%s", nfs, fname);
  74                 pstring_sub(path,"\\", "/");
  75                 return open(path, flags, 0666);
  76         }
  77
  78         return -1;
  79 }
  80
  81 static BOOL try_close(struct smbcli_state *c, int fstype, int fd)
  82 {
  83         switch (fstype) {
  84         case FSTYPE_SMB:
  85                 return smbcli_close(c, fd);
  86
  87         case FSTYPE_NFS:
  88                 return close(fd) == 0;
  89         }
  90
  91         return False;
  92 }
  93
  94 static BOOL try_lock(struct smbcli_state *c, int fstype,
  95                      int fd, uint_t start, uint_t len,
  96                      enum brl_type op)
  97 {
  98         struct flock lock;
  99
 100         switch (fstype) {
 101         case FSTYPE_SMB:
 102                 return smbcli_lock(c, fd, start, len, LOCK_TIMEOUT, op);
 103
 104         case FSTYPE_NFS:
 105                 lock.l_type = (op==READ_LOCK) ? F_RDLCK:F_WRLCK;
 106                 lock.l_whence = SEEK_SET;
 107                 lock.l_start = start;
 108                 lock.l_len = len;
 109                 lock.l_pid = getpid();
 110                 return fcntl(fd,F_SETLK,&lock) == 0;
 111         }
 112
 113         return False;
 114 }
 115
 116 static BOOL try_unlock(struct smbcli_state *c, int fstype,
 117                        int fd, uint_t start, uint_t len)
 118 {
 119         struct flock lock;
 120
 121         switch (fstype) {
 122         case FSTYPE_SMB:
 123                 return smbcli_unlock(c, fd, start, len);
 124
 125         case FSTYPE_NFS:
 126                 lock.l_type = F_UNLCK;
 127                 lock.l_whence = SEEK_SET;
 128                 lock.l_start = start;
 129                 lock.l_len = len;
 130                 lock.l_pid = getpid();
 131                 return fcntl(fd,F_SETLK,&lock) == 0;
 132         }
 133
 134         return False;
 135 }
 136
 137 /*****************************************************
 138 return a connection to a server
 139 *******************************************************/
 140 static struct smbcli_state *connect_one(char *share)
 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, NULL, 0, share, "?????",
 168                                            username, lp_workgroup(), password, 0,
 169                                            NULL);
 170
 171         if (!NT_STATUS_IS_OK(nt_status)) {
 172                 DEBUG(0, ("smbcli_full_connection failed with error %s\n", nt_errstr(nt_status)));
 173                 return NULL;
 174         }
 175
 176         c->use_oplocks = use_oplocks;
 177
 178         return c;
 179 }
 180
 181
 182 static void reconnect(struct smbcli_state *cli[NSERVERS][NCONNECTIONS],
 183                       char *nfs[NSERVERS],
 184                       int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 185                       char *share1, char *share2)
 186 {
 187         int server, conn, f, fstype;
 188         char *share[2];
 189         share[0] = share1;
 190         share[1] = share2;
 191
 192         fstype = FSTYPE_SMB;
 193
 194         for (server=0;server<NSERVERS;server++)
 195         for (conn=0;conn<NCONNECTIONS;conn++) {
 196                 if (cli[server][conn]) {
 197                         for (f=0;f<NFILES;f++) {
 198                                 smbcli_close(cli[server][conn], fnum[server][fstype][conn][f]);
 199                         }
 200                         smbcli_ulogoff(cli[server][conn]);
 201                         smbcli_shutdown(cli[server][conn]);
 202                 }
 203                 cli[server][conn] = connect_one(share[server]);
 204                 if (!cli[server][conn]) {
 205                         DEBUG(0,("Failed to connect to %s\n", share[server]));
 206                         exit(1);
 207                 }
 208         }
 209 }
 210
 211
 212
 213 static BOOL test_one(struct smbcli_state *cli[NSERVERS][NCONNECTIONS],
 214                      char *nfs[NSERVERS],
 215                      int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 216                      struct record *rec)
 217 {
 218         uint_t conn = rec->conn;
 219         uint_t f = rec->f;
 220         uint_t fstype = rec->fstype;
 221         uint_t start = rec->start;
 222         uint_t len = rec->len;
 223         uint_t r1 = rec->r1;
 224         uint_t r2 = rec->r2;
 225         enum brl_type op;
 226         int server;
 227         BOOL ret[NSERVERS];
 228
 229         if (r1 < READ_PCT) {
 230                 op = READ_LOCK;
 231         } else {
 232                 op = WRITE_LOCK;
 233         }
 234
 235         if (r2 < LOCK_PCT) {
 236                 /* set a lock */
 237                 for (server=0;server<NSERVERS;server++) {
 238                         ret[server] = try_lock(cli[server][conn], fstype,
 239                                                fnum[server][fstype][conn][f],
 240                                                start, len, op);
 241                 }
 242                 if (showall || ret[0] != ret[1]) {
 243                         printf("lock   conn=%u fstype=%u f=%u range=%u:%u(%u) op=%s -> %u:%u\n",
 244                                conn, fstype, f,
 245                                start, start+len-1, len,
 246                                op==READ_LOCK?"READ_LOCK":"WRITE_LOCK",
 247                                ret[0], ret[1]);
 248                 }
 249                 if (ret[0] != ret[1]) return False;
 250         } else if (r2 < LOCK_PCT+UNLOCK_PCT) {
 251                 /* unset a lock */
 252                 for (server=0;server<NSERVERS;server++) {
 253                         ret[server] = try_unlock(cli[server][conn], fstype,
 254                                                  fnum[server][fstype][conn][f],
 255                                                  start, len);
 256                 }
 257                 if (showall || (!hide_unlock_fails && (ret[0] != ret[1]))) {
 258                         printf("unlock conn=%u fstype=%u f=%u range=%u:%u(%u)       -> %u:%u\n",
 259                                conn, fstype, f,
 260                                start, start+len-1, len,
 261                                ret[0], ret[1]);
 262                 }
 263                 if (!hide_unlock_fails && ret[0] != ret[1]) return False;
 264         } else {
 265                 /* reopen the file */
 266                 for (server=0;server<NSERVERS;server++) {
 267                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 268                         fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 269                                                                  O_RDWR|O_CREAT);
 270                         if (fnum[server][fstype][conn][f] == -1) {
 271                                 printf("failed to reopen on share1\n");
 272                                 return False;
 273                         }
 274                 }
 275                 if (showall) {
 276                         printf("reopen conn=%u fstype=%u f=%u\n",
 277                                conn, fstype, f);
 278                 }
 279         }
 280         return True;
 281 }
 282
 283 static void close_files(struct smbcli_state *cli[NSERVERS][NCONNECTIONS],
 284                         char *nfs[NSERVERS],
 285                         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 286 {
 287         int server, conn, f, fstype;
 288
 289         for (server=0;server<NSERVERS;server++)
 290         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 291         for (conn=0;conn<NCONNECTIONS;conn++)
 292         for (f=0;f<NFILES;f++) {
 293                 if (fnum[server][fstype][conn][f] != -1) {
 294                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 295                         fnum[server][fstype][conn][f] = -1;
 296                 }
 297         }
 298         for (server=0;server<NSERVERS;server++) {
 299                 smbcli_unlink(cli[server][0], FILENAME);
 300         }
 301 }
 302
 303 static void open_files(struct smbcli_state *cli[NSERVERS][NCONNECTIONS],
 304                        char *nfs[NSERVERS],
 305                        int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 306 {
 307         int server, fstype, conn, f;
 308
 309         for (server=0;server<NSERVERS;server++)
 310         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 311         for (conn=0;conn<NCONNECTIONS;conn++)
 312         for (f=0;f<NFILES;f++) {
 313                 fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 314                                                          O_RDWR|O_CREAT);
 315                 if (fnum[server][fstype][conn][f] == -1) {
 316                         fprintf(stderr,"Failed to open fnum[%u][%u][%u][%u]\n",
 317                                 server, fstype, conn, f);
 318                         exit(1);
 319                 }
 320         }
 321 }
 322
 323
 324 static int retest(struct smbcli_state *cli[NSERVERS][NCONNECTIONS],
 325                   char *nfs[NSERVERS],
 326                   int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 327                   int n)
 328 {
 329         int i;
 330         printf("testing %u ...\n", n);
 331         for (i=0; i<n; i++) {
 332                 if (i && i % 100 == 0) {
 333                         printf("%u\n", i);
 334                 }
 335
 336                 if (recorded[i].needed &&
 337                     !test_one(cli, nfs, fnum, &recorded[i])) return i;
 338         }
 339         return n;
 340 }
 341
 342
 343 /* each server has two connections open to it. Each connection has two file
 344    descriptors open on the file - 8 file descriptors in total
 345
 346    we then do random locking ops in tamdem on the 4 fnums from each
 347    server and ensure that the results match
 348  */
 349 static void test_locks(char *share1, char *share2, char *nfspath1, char *nfspath2)
 350 {
 351         struct smbcli_state *cli[NSERVERS][NCONNECTIONS];
 352         char *nfs[NSERVERS];
 353         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES];
 354         int n, i, n1;
 355
 356         nfs[0] = nfspath1;
 357         nfs[1] = nfspath2;
 358
 359         ZERO_STRUCT(fnum);
 360         ZERO_STRUCT(cli);
 361
 362         recorded = (struct record *)malloc(sizeof(*recorded) * numops);
 363
 364         for (n=0; n<numops; n++) {
 365                 recorded[n].conn = random() % NCONNECTIONS;
 366                 recorded[n].fstype = random() % NUMFSTYPES;
 367                 recorded[n].f = random() % NFILES;
 368                 recorded[n].start = LOCKBASE + ((uint_t)random() % (LOCKRANGE-1));
 369                 recorded[n].len = 1 +
 370                         random() % (LOCKRANGE-(recorded[n].start-LOCKBASE));
 371                 recorded[n].start *= RANGE_MULTIPLE;
 372                 recorded[n].len *= RANGE_MULTIPLE;
 373                 recorded[n].r1 = random() % 100;
 374                 recorded[n].r2 = random() % 100;
 375                 recorded[n].needed = True;
 376         }
 377
 378         reconnect(cli, nfs, fnum, share1, share2);
 379         open_files(cli, nfs, fnum);
 380         n = retest(cli, nfs, fnum, numops);
 381
 382         if (n == numops || !analyze) return;
 383         n++;
 384
 385         while (1) {
 386                 n1 = n;
 387
 388                 close_files(cli, nfs, fnum);
 389                 reconnect(cli, nfs, fnum, share1, share2);
 390                 open_files(cli, nfs, fnum);
 391
 392                 for (i=0;i<n-1;i++) {
 393                         int m;
 394                         recorded[i].needed = False;
 395
 396                         close_files(cli, nfs, fnum);
 397                         open_files(cli, nfs, fnum);
 398
 399                         m = retest(cli, nfs, fnum, n);
 400                         if (m == n) {
 401                                 recorded[i].needed = True;
 402                         } else {
 403                                 if (i < m) {
 404                                         memmove(&recorded[i], &recorded[i+1],
 405                                                 (m-i)*sizeof(recorded[0]));
 406                                 }
 407                                 n = m;
 408                                 i--;
 409                         }
 410                 }
 411
 412                 if (n1 == n) break;
 413         }
 414
 415         close_files(cli, nfs, fnum);
 416         reconnect(cli, nfs, fnum, share1, share2);
 417         open_files(cli, nfs, fnum);
 418         showall = True;
 419         n1 = retest(cli, nfs, fnum, n);
 420         if (n1 != n-1) {
 421                 printf("ERROR - inconsistent result (%u %u)\n", n1, n);
 422         }
 423         close_files(cli, nfs, fnum);
 424
 425         for (i=0;i<n;i++) {
 426                 printf("{%u, %u, %u, %u, %u, %u, %u, %u},\n",
 427                        recorded[i].r1,
 428                        recorded[i].r2,
 429                        recorded[i].conn,
 430                        recorded[i].fstype,
 431                        recorded[i].f,
 432                        recorded[i].start,
 433                        recorded[i].len,
 434                        recorded[i].needed);
 435         }
 436 }
 437
 438
 439
 440 static void usage(void)
 441 {
 442         printf(
 443 "Usage:\n\
 444   locktest //server1/share1 //server2/share2 /path1 /path2 [options..]\n\
 445   options:\n\
 446         -U user%%pass\n\
 447         -s seed\n\
 448         -o numops\n\
 449         -u          hide unlock fails\n\
 450         -a          (show all ops)\n\
 451         -O          use oplocks\n\
 452 ");
 453 }
 454
 455 /****************************************************************************
 456   main program
 457 ****************************************************************************/
 458  int main(int argc,char *argv[])
 459 {
 460         char *share1, *share2, *nfspath1, *nfspath2;
 461         extern char *optarg;
 462         extern int optind;
 463         int opt;
 464         char *p;
 465         int seed;
 466
 467         setlinebuf(stdout);
 468
 469         dbf = x_stderr;
 470
 471         if (argc < 5 || argv[1][0] == '-') {
 472                 usage();
 473                 exit(1);
 474         }
 475
 476         share1 = argv[1];
 477         share2 = argv[2];
 478         nfspath1 = argv[3];
 479         nfspath2 = argv[4];
 480
 481         all_string_sub(share1,"/","\\",0);
 482         all_string_sub(share2,"/","\\",0);
 483
 484         setup_logging(argv[0], DEBUG_STDOUT);
 485
 486         argc -= 4;
 487         argv += 4;
 488
 489         lp_load(dyn_CONFIGFILE,True,False,False);
 490         load_interfaces();
 491
 492         if (getenv("USER")) {
 493                 fstrcpy(username,getenv("USER"));
 494         }
 495
 496         seed = time(NULL);
 497
 498         while ((opt = getopt(argc, argv, "U:s:ho:aAW:O")) != EOF) {
 499                 switch (opt) {
 500                 case 'U':
 501                         fstrcpy(username,optarg);
 502                         p = strchr_m(username,'%');
 503                         if (p) {
 504                                 *p = 0;
 505                                 fstrcpy(password, p+1);
 506                                 got_pass = 1;
 507                         }
 508                         break;
 509                 case 's':
 510                         seed = atoi(optarg);
 511                         break;
 512                 case 'u':
 513                         hide_unlock_fails = True;
 514                         break;
 515                 case 'o':
 516                         numops = atoi(optarg);
 517                         break;
 518                 case 'O':
 519                         use_oplocks = True;
 520                         break;
 521                 case 'a':
 522                         showall = True;
 523                         break;
 524                 case 'A':
 525                         analyze = True;
 526                         break;
 527                 case 'h':
 528                         usage();
 529                         exit(1);
 530                 default:
 531                         printf("Unknown option %c (%d)\n", (char)opt, opt);
 532                         exit(1);
 533                 }
 534         }
 535
 536         argc -= optind;
 537         argv += optind;
 538
 539         DEBUG(0,("seed=%u\n", seed));
 540         srandom(seed);
 541
 542         locking_init(1);
 543         test_locks(share1, share2, nfspath1, nfspath2);
 544
 545         return(0);
 546 }