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 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 #define NO_SYSLOG
  22
  23 #include "includes.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 #define FILENAME "\\locktest.dat"
  35 #define LOCKRANGE 100
  36 #define LOCKBASE 0
  37
  38 /*
  39 #define LOCKBASE (0x40000000 - 50)
  40 */
  41
  42 #define READ_PCT 50
  43 #define LOCK_PCT 25
  44 #define UNLOCK_PCT 65
  45 #define RANGE_MULTIPLE 1
  46
  47 #define NSERVERS 2
  48 #define NCONNECTIONS 2
  49 #define NUMFSTYPES 2
  50 #define NFILES 2
  51 #define LOCK_TIMEOUT 0
  52
  53 #define FSTYPE_SMB 0
  54 #define FSTYPE_NFS 1
  55
  56 struct record {
  57         char r1, r2;
  58         char conn, f, fstype;
  59         unsigned start, len;
  60         char needed;
  61 };
  62
  63 static struct record *recorded;
  64
  65 static int try_open(struct cli_state *c, char *nfs, int fstype, char *fname, int flags)
  66 {
  67         pstring path;
  68
  69         switch (fstype) {
  70         case FSTYPE_SMB:
  71                 return cli_open(c, fname, flags, DENY_NONE);
  72
  73         case FSTYPE_NFS:
  74                 slprintf(path, sizeof(path), "%s%s", nfs, fname);
  75                 pstring_sub(path,"\\", "/");
  76                 return open(path, flags, 0666);
  77         }
  78
  79         return -1;
  80 }
  81
  82 static BOOL try_close(struct cli_state *c, int fstype, int fd)
  83 {
  84         switch (fstype) {
  85         case FSTYPE_SMB:
  86                 return cli_close(c, fd);
  87
  88         case FSTYPE_NFS:
  89                 return close(fd) == 0;
  90         }
  91
  92         return False;
  93 }
  94
  95 static BOOL try_lock(struct cli_state *c, int fstype,
  96                      int fd, unsigned start, unsigned len,
  97                      enum brl_type op)
  98 {
  99         struct flock lock;
 100
 101         switch (fstype) {
 102         case FSTYPE_SMB:
 103                 return cli_lock(c, fd, start, len, LOCK_TIMEOUT, op);
 104
 105         case FSTYPE_NFS:
 106                 lock.l_type = (op==READ_LOCK) ? F_RDLCK:F_WRLCK;
 107                 lock.l_whence = SEEK_SET;
 108                 lock.l_start = start;
 109                 lock.l_len = len;
 110                 lock.l_pid = getpid();
 111                 return fcntl(fd,F_SETLK,&lock) == 0;
 112         }
 113
 114         return False;
 115 }
 116
 117 static BOOL try_unlock(struct cli_state *c, int fstype,
 118                        int fd, unsigned start, unsigned len)
 119 {
 120         struct flock lock;
 121
 122         switch (fstype) {
 123         case FSTYPE_SMB:
 124                 return cli_unlock(c, fd, start, len);
 125
 126         case FSTYPE_NFS:
 127                 lock.l_type = F_UNLCK;
 128                 lock.l_whence = SEEK_SET;
 129                 lock.l_start = start;
 130                 lock.l_len = len;
 131                 lock.l_pid = getpid();
 132                 return fcntl(fd,F_SETLK,&lock) == 0;
 133         }
 134
 135         return False;
 136 }
 137
 138 static void print_brl(SMB_DEV_T dev, SMB_INO_T ino, int pid,
 139                       enum brl_type lock_type,
 140                       br_off start, br_off size)
 141 {
 142         printf("%6d   %05x:%05x    %s  %.0f:%.0f(%.0f)\n",
 143                (int)pid, (int)dev, (int)ino,
 144                lock_type==READ_LOCK?"R":"W",
 145                (double)start, (double)start+size-1,(double)size);
 146
 147 }
 148
 149 /*****************************************************
 150 return a connection to a server
 151 *******************************************************/
 152 struct cli_state *connect_one(char *share)
 153 {
 154         struct cli_state *c;
 155         struct nmb_name called, calling;
 156         char *server_n;
 157         fstring server;
 158         struct in_addr ip;
 159         fstring myname;
 160         static int count;
 161
 162         fstrcpy(server,share+2);
 163         share = strchr_m(server,'\\');
 164         if (!share) return NULL;
 165         *share = 0;
 166         share++;
 167
 168         server_n = server;
 169
 170         zero_ip(&ip);
 171
 172         slprintf(myname,sizeof(myname), "lock-%u-%u", getpid(), count++);
 173
 174         make_nmb_name(&calling, myname, 0x0);
 175         make_nmb_name(&called , server, 0x20);
 176
 177  again:
 178         zero_ip(&ip);
 179
 180         /* have to open a new connection */
 181         if (!(c=cli_initialise(NULL)) || !cli_connect(c, server_n, &ip)) {
 182                 DEBUG(0,("Connection to %s failed\n", server_n));
 183                 return NULL;
 184         }
 185
 186         if (!cli_session_request(c, &calling, &called)) {
 187                 DEBUG(0,("session request to %s failed\n", called.name));
 188                 cli_shutdown(c);
 189                 if (strcmp(called.name, "*SMBSERVER")) {
 190                         make_nmb_name(&called , "*SMBSERVER", 0x20);
 191                         goto again;
 192                 }
 193                 return NULL;
 194         }
 195
 196         DEBUG(4,(" session request ok\n"));
 197
 198         if (!cli_negprot(c)) {
 199                 DEBUG(0,("protocol negotiation failed\n"));
 200                 cli_shutdown(c);
 201                 return NULL;
 202         }
 203
 204         if (!got_pass) {
 205                 char *pass = getpass("Password: ");
 206                 if (pass) {
 207                         pstrcpy(password, pass);
 208                 }
 209         }
 210
 211         if (!cli_session_setup(c, username,
 212                                password, strlen(password),
 213                                password, strlen(password),
 214                                lp_workgroup())) {
 215                 DEBUG(0,("session setup failed: %s\n", cli_errstr(c)));
 216                 return NULL;
 217         }
 218
 219         /*
 220          * These next two lines are needed to emulate
 221          * old client behaviour for people who have
 222          * scripts based on client output.
 223          * QUESTION ? Do we want to have a 'client compatibility
 224          * mode to turn these on/off ? JRA.
 225          */
 226
 227         if (*c->server_domain || *c->server_os || *c->server_type)
 228                 DEBUG(1,("Domain=[%s] OS=[%s] Server=[%s]\n",
 229                         c->server_domain,c->server_os,c->server_type));
 230
 231         DEBUG(4,(" session setup ok\n"));
 232
 233         if (!cli_send_tconX(c, share, "?????",
 234                             password, strlen(password)+1)) {
 235                 DEBUG(0,("tree connect failed: %s\n", cli_errstr(c)));
 236                 cli_shutdown(c);
 237                 return NULL;
 238         }
 239
 240         DEBUG(4,(" tconx ok\n"));
 241
 242         c->use_oplocks = use_oplocks;
 243
 244         return c;
 245 }
 246
 247
 248 static void reconnect(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 249                       char *nfs[NSERVERS],
 250                       int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 251                       char *share1, char *share2)
 252 {
 253         int server, conn, f, fstype;
 254         char *share[2];
 255         share[0] = share1;
 256         share[1] = share2;
 257
 258         fstype = FSTYPE_SMB;
 259
 260         for (server=0;server<NSERVERS;server++)
 261         for (conn=0;conn<NCONNECTIONS;conn++) {
 262                 if (cli[server][conn]) {
 263                         for (f=0;f<NFILES;f++) {
 264                                 cli_close(cli[server][conn], fnum[server][fstype][conn][f]);
 265                         }
 266                         cli_ulogoff(cli[server][conn]);
 267                         cli_shutdown(cli[server][conn]);
 268                 }
 269                 cli[server][conn] = connect_one(share[server]);
 270                 if (!cli[server][conn]) {
 271                         DEBUG(0,("Failed to connect to %s\n", share[server]));
 272                         exit(1);
 273                 }
 274         }
 275 }
 276
 277
 278
 279 static BOOL test_one(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 280                      char *nfs[NSERVERS],
 281                      int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 282                      struct record *rec)
 283 {
 284         unsigned conn = rec->conn;
 285         unsigned f = rec->f;
 286         unsigned fstype = rec->fstype;
 287         unsigned start = rec->start;
 288         unsigned len = rec->len;
 289         unsigned r1 = rec->r1;
 290         unsigned r2 = rec->r2;
 291         enum brl_type op;
 292         int server;
 293         BOOL ret[NSERVERS];
 294
 295         if (r1 < READ_PCT) {
 296                 op = READ_LOCK;
 297         } else {
 298                 op = WRITE_LOCK;
 299         }
 300
 301         if (r2 < LOCK_PCT) {
 302                 /* set a lock */
 303                 for (server=0;server<NSERVERS;server++) {
 304                         ret[server] = try_lock(cli[server][conn], fstype,
 305                                                fnum[server][fstype][conn][f],
 306                                                start, len, op);
 307                 }
 308                 if (showall || ret[0] != ret[1]) {
 309                         printf("lock   conn=%u fstype=%u f=%u range=%u:%u(%u) op=%s -> %u:%u\n",
 310                                conn, fstype, f,
 311                                start, start+len-1, len,
 312                                op==READ_LOCK?"READ_LOCK":"WRITE_LOCK",
 313                                ret[0], ret[1]);
 314                 }
 315                 if (showall) brl_forall(print_brl);
 316                 if (ret[0] != ret[1]) return False;
 317         } else if (r2 < LOCK_PCT+UNLOCK_PCT) {
 318                 /* unset a lock */
 319                 for (server=0;server<NSERVERS;server++) {
 320                         ret[server] = try_unlock(cli[server][conn], fstype,
 321                                                  fnum[server][fstype][conn][f],
 322                                                  start, len);
 323                 }
 324                 if (showall || (!hide_unlock_fails && (ret[0] != ret[1]))) {
 325                         printf("unlock conn=%u fstype=%u f=%u range=%u:%u(%u)       -> %u:%u\n",
 326                                conn, fstype, f,
 327                                start, start+len-1, len,
 328                                ret[0], ret[1]);
 329                 }
 330                 if (showall) brl_forall(print_brl);
 331                 if (!hide_unlock_fails && ret[0] != ret[1]) return False;
 332         } else {
 333                 /* reopen the file */
 334                 for (server=0;server<NSERVERS;server++) {
 335                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 336                         fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 337                                                                  O_RDWR|O_CREAT);
 338                         if (fnum[server][fstype][conn][f] == -1) {
 339                                 printf("failed to reopen on share1\n");
 340                                 return False;
 341                         }
 342                 }
 343                 if (showall) {
 344                         printf("reopen conn=%u fstype=%u f=%u\n",
 345                                conn, fstype, f);
 346                         brl_forall(print_brl);
 347                 }
 348         }
 349         return True;
 350 }
 351
 352 static void close_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 353                         char *nfs[NSERVERS],
 354                         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 355 {
 356         int server, conn, f, fstype;
 357
 358         for (server=0;server<NSERVERS;server++)
 359         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 360         for (conn=0;conn<NCONNECTIONS;conn++)
 361         for (f=0;f<NFILES;f++) {
 362                 if (fnum[server][fstype][conn][f] != -1) {
 363                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 364                         fnum[server][fstype][conn][f] = -1;
 365                 }
 366         }
 367         for (server=0;server<NSERVERS;server++) {
 368                 cli_unlink(cli[server][0], FILENAME);
 369         }
 370 }
 371
 372 static void open_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 373                        char *nfs[NSERVERS],
 374                        int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 375 {
 376         int server, fstype, conn, f;
 377
 378         for (server=0;server<NSERVERS;server++)
 379         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 380         for (conn=0;conn<NCONNECTIONS;conn++)
 381         for (f=0;f<NFILES;f++) {
 382                 fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 383                                                          O_RDWR|O_CREAT);
 384                 if (fnum[server][fstype][conn][f] == -1) {
 385                         fprintf(stderr,"Failed to open fnum[%u][%u][%u][%u]\n",
 386                                 server, fstype, conn, f);
 387                         exit(1);
 388                 }
 389         }
 390 }
 391
 392
 393 static int retest(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 394                   char *nfs[NSERVERS],
 395                   int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 396                   int n)
 397 {
 398         int i;
 399         printf("testing %u ...\n", n);
 400         for (i=0; i<n; i++) {
 401                 if (i && i % 100 == 0) {
 402                         printf("%u\n", i);
 403                 }
 404
 405                 if (recorded[i].needed &&
 406                     !test_one(cli, nfs, fnum, &recorded[i])) return i;
 407         }
 408         return n;
 409 }
 410
 411
 412 /* each server has two connections open to it. Each connection has two file
 413    descriptors open on the file - 8 file descriptors in total
 414
 415    we then do random locking ops in tamdem on the 4 fnums from each
 416    server and ensure that the results match
 417  */
 418 static void test_locks(char *share1, char *share2, char *nfspath1, char *nfspath2)
 419 {
 420         struct cli_state *cli[NSERVERS][NCONNECTIONS];
 421         char *nfs[NSERVERS];
 422         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES];
 423         int n, i, n1;
 424
 425         nfs[0] = nfspath1;
 426         nfs[1] = nfspath2;
 427
 428         ZERO_STRUCT(fnum);
 429         ZERO_STRUCT(cli);
 430
 431         recorded = (struct record *)malloc(sizeof(*recorded) * numops);
 432
 433         for (n=0; n<numops; n++) {
 434                 recorded[n].conn = random() % NCONNECTIONS;
 435                 recorded[n].fstype = random() % NUMFSTYPES;
 436                 recorded[n].f = random() % NFILES;
 437                 recorded[n].start = LOCKBASE + ((unsigned)random() % (LOCKRANGE-1));
 438                 recorded[n].len = 1 +
 439                         random() % (LOCKRANGE-(recorded[n].start-LOCKBASE));
 440                 recorded[n].start *= RANGE_MULTIPLE;
 441                 recorded[n].len *= RANGE_MULTIPLE;
 442                 recorded[n].r1 = random() % 100;
 443                 recorded[n].r2 = random() % 100;
 444                 recorded[n].needed = True;
 445         }
 446
 447         reconnect(cli, nfs, fnum, share1, share2);
 448         open_files(cli, nfs, fnum);
 449         n = retest(cli, nfs, fnum, numops);
 450
 451         if (n == numops || !analyze) return;
 452         n++;
 453
 454         while (1) {
 455                 n1 = n;
 456
 457                 close_files(cli, nfs, fnum);
 458                 reconnect(cli, nfs, fnum, share1, share2);
 459                 open_files(cli, nfs, fnum);
 460
 461                 for (i=0;i<n-1;i++) {
 462                         int m;
 463                         recorded[i].needed = False;
 464
 465                         close_files(cli, nfs, fnum);
 466                         open_files(cli, nfs, fnum);
 467
 468                         m = retest(cli, nfs, fnum, n);
 469                         if (m == n) {
 470                                 recorded[i].needed = True;
 471                         } else {
 472                                 if (i < m) {
 473                                         memmove(&recorded[i], &recorded[i+1],
 474                                                 (m-i)*sizeof(recorded[0]));
 475                                 }
 476                                 n = m;
 477                                 i--;
 478                         }
 479                 }
 480
 481                 if (n1 == n) break;
 482         }
 483
 484         close_files(cli, nfs, fnum);
 485         reconnect(cli, nfs, fnum, share1, share2);
 486         open_files(cli, nfs, fnum);
 487         showall = True;
 488         n1 = retest(cli, nfs, fnum, n);
 489         if (n1 != n-1) {
 490                 printf("ERROR - inconsistent result (%u %u)\n", n1, n);
 491         }
 492         close_files(cli, nfs, fnum);
 493
 494         for (i=0;i<n;i++) {
 495                 printf("{%u, %u, %u, %u, %u, %u, %u, %u},\n",
 496                        recorded[i].r1,
 497                        recorded[i].r2,
 498                        recorded[i].conn,
 499                        recorded[i].fstype,
 500                        recorded[i].f,
 501                        recorded[i].start,
 502                        recorded[i].len,
 503                        recorded[i].needed);
 504         }
 505 }
 506
 507
 508
 509 static void usage(void)
 510 {
 511         printf(
 512 "Usage:\n\
 513   locktest //server1/share1 //server2/share2 /path1 /path2 [options..]\n\
 514   options:\n\
 515         -U user%%pass\n\
 516         -s seed\n\
 517         -o numops\n\
 518         -u          hide unlock fails\n\
 519         -a          (show all ops)\n\
 520         -O          use oplocks\n\
 521 ");
 522 }
 523
 524 /****************************************************************************
 525   main program
 526 ****************************************************************************/
 527  int main(int argc,char *argv[])
 528 {
 529         char *share1, *share2, *nfspath1, *nfspath2;
 530         extern char *optarg;
 531         extern int optind;
 532         int opt;
 533         char *p;
 534         int seed;
 535
 536         setlinebuf(stdout);
 537
 538         dbf = x_stderr;
 539
 540         if (argc < 5 || argv[1][0] == '-') {
 541                 usage();
 542                 exit(1);
 543         }
 544
 545         share1 = argv[1];
 546         share2 = argv[2];
 547         nfspath1 = argv[3];
 548         nfspath2 = argv[4];
 549
 550         all_string_sub(share1,"/","\\",0);
 551         all_string_sub(share2,"/","\\",0);
 552
 553         setup_logging(argv[0],True);
 554
 555         argc -= 4;
 556         argv += 4;
 557
 558         lp_load(dyn_CONFIGFILE,True,False,False);
 559         load_interfaces();
 560
 561         if (getenv("USER")) {
 562                 pstrcpy(username,getenv("USER"));
 563         }
 564
 565         seed = time(NULL);
 566
 567         while ((opt = getopt(argc, argv, "U:s:ho:aAW:O")) != EOF) {
 568                 switch (opt) {
 569                 case 'U':
 570                         pstrcpy(username,optarg);
 571                         p = strchr_m(username,'%');
 572                         if (p) {
 573                                 *p = 0;
 574                                 pstrcpy(password, p+1);
 575                                 got_pass = 1;
 576                         }
 577                         break;
 578                 case 's':
 579                         seed = atoi(optarg);
 580                         break;
 581                 case 'u':
 582                         hide_unlock_fails = True;
 583                         break;
 584                 case 'o':
 585                         numops = atoi(optarg);
 586                         break;
 587                 case 'O':
 588                         use_oplocks = True;
 589                         break;
 590                 case 'a':
 591                         showall = True;
 592                         break;
 593                 case 'A':
 594                         analyze = True;
 595                         break;
 596                 case 'h':
 597                         usage();
 598                         exit(1);
 599                 default:
 600                         printf("Unknown option %c (%d)\n", (char)opt, opt);
 601                         exit(1);
 602                 }
 603         }
 604
 605         argc -= optind;
 606         argv += optind;
 607
 608         DEBUG(0,("seed=%u\n", seed));
 609         srandom(seed);
 610
 611         locking_init(1);
 612         test_locks(share1, share2, nfspath1, nfspath2);
 613
 614         return(0);
 615 }