source/utils/locktest2.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 2.0
   4    byte range lock tester - with local filesystem support
   5    Copyright (C) Andrew Tridgell 1999
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22 #define NO_SYSLOG
  23
  24 #include "includes.h"
  25
  26 static fstring password;
  27 static fstring username;
  28 static int got_pass;
  29 static int numops = 1000;
  30 static BOOL showall;
  31 static BOOL analyze;
  32 static BOOL hide_unlock_fails;
  33 static BOOL use_oplocks;
  34
  35 #define FILENAME "\\locktest.dat"
  36 #define LOCKRANGE 100
  37 #define LOCKBASE 0
  38
  39 /*
  40 #define LOCKBASE (0x40000000 - 50)
  41 */
  42
  43 #define READ_PCT 50
  44 #define LOCK_PCT 25
  45 #define UNLOCK_PCT 65
  46 #define RANGE_MULTIPLE 1
  47
  48 #define NSERVERS 2
  49 #define NCONNECTIONS 2
  50 #define NUMFSTYPES 2
  51 #define NFILES 2
  52 #define LOCK_TIMEOUT 0
  53
  54 #define FSTYPE_SMB 0
  55 #define FSTYPE_NFS 1
  56
  57 struct record {
  58         char r1, r2;
  59         char conn, f, fstype;
  60         unsigned start, len;
  61         char needed;
  62 };
  63
  64 static struct record *recorded;
  65
  66 static int try_open(struct cli_state *c, char *nfs, int fstype, char *fname, int flags)
  67 {
  68         pstring path;
  69
  70         switch (fstype) {
  71         case FSTYPE_SMB:
  72                 return cli_open(c, fname, flags, DENY_NONE);
  73
  74         case FSTYPE_NFS:
  75                 slprintf(path, sizeof(path), "%s%s", nfs, fname);
  76                 pstring_sub(path,"\\", "/");
  77                 return open(path, flags, 0666);
  78         }
  79
  80         return -1;
  81 }
  82
  83 static BOOL try_close(struct cli_state *c, int fstype, int fd)
  84 {
  85         switch (fstype) {
  86         case FSTYPE_SMB:
  87                 return cli_close(c, fd);
  88
  89         case FSTYPE_NFS:
  90                 return close(fd) == 0;
  91         }
  92
  93         return False;
  94 }
  95
  96 static BOOL try_lock(struct cli_state *c, int fstype,
  97                      int fd, unsigned start, unsigned len,
  98                      int op)
  99 {
 100         struct flock lock;
 101
 102         switch (fstype) {
 103         case FSTYPE_SMB:
 104                 return cli_lock(c, fd, start, len, LOCK_TIMEOUT, op);
 105
 106         case FSTYPE_NFS:
 107                 lock.l_type = (op==READ_LOCK) ? F_RDLCK:F_WRLCK;
 108                 lock.l_whence = SEEK_SET;
 109                 lock.l_start = start;
 110                 lock.l_len = len;
 111                 lock.l_pid = getpid();
 112                 return fcntl(fd,F_SETLK,&lock) == 0;
 113         }
 114
 115         return False;
 116 }
 117
 118 static BOOL try_unlock(struct cli_state *c, int fstype,
 119                        int fd, unsigned start, unsigned len)
 120 {
 121         struct flock lock;
 122
 123         switch (fstype) {
 124         case FSTYPE_SMB:
 125                 return cli_unlock(c, fd, start, len);
 126
 127         case FSTYPE_NFS:
 128                 lock.l_type = F_UNLCK;
 129                 lock.l_whence = SEEK_SET;
 130                 lock.l_start = start;
 131                 lock.l_len = len;
 132                 lock.l_pid = getpid();
 133                 return fcntl(fd,F_SETLK,&lock) == 0;
 134         }
 135
 136         return False;
 137 }
 138
 139 static void print_brl(SMB_DEV_T dev, SMB_INO_T ino, int pid,
 140                       enum brl_type lock_type,
 141                       br_off start, br_off size)
 142 {
 143         printf("%6d   %05x:%05x    %s  %.0f:%.0f(%.0f)\n",
 144                (int)pid, (int)dev, (int)ino,
 145                lock_type==READ_LOCK?"R":"W",
 146                (double)start, (double)start+size-1,(double)size);
 147
 148 }
 149
 150 /*****************************************************
 151 return a connection to a server
 152 *******************************************************/
 153 struct cli_state *connect_one(char *share)
 154 {
 155         struct cli_state *c;
 156         struct nmb_name called, calling;
 157         char *server_n;
 158         fstring server;
 159         struct in_addr ip;
 160         fstring myname;
 161         static int count;
 162
 163         fstrcpy(server,share+2);
 164         share = strchr(server,'\\');
 165         if (!share) return NULL;
 166         *share = 0;
 167         share++;
 168
 169         server_n = server;
 170
 171         zero_ip(&ip);
 172
 173         slprintf(myname,sizeof(myname), "lock-%u-%u", getpid(), count++);
 174
 175         make_nmb_name(&calling, myname, 0x0);
 176         make_nmb_name(&called , server, 0x20);
 177
 178  again:
 179         zero_ip(&ip);
 180
 181         /* have to open a new connection */
 182         if (!(c=cli_initialise(NULL)) || (cli_set_port(c, 139) == 0) ||
 183             !cli_connect(c, server_n, &ip)) {
 184                 DEBUG(0,("Connection to %s failed\n", server_n));
 185                 return NULL;
 186         }
 187
 188         if (!cli_session_request(c, &calling, &called)) {
 189                 DEBUG(0,("session request to %s failed\n", called.name));
 190                 cli_shutdown(c);
 191                 if (strcmp(called.name, "*SMBSERVER")) {
 192                         make_nmb_name(&called , "*SMBSERVER", 0x20);
 193                         goto again;
 194                 }
 195                 return NULL;
 196         }
 197
 198         DEBUG(4,(" session request ok\n"));
 199
 200         if (!cli_negprot(c)) {
 201                 DEBUG(0,("protocol negotiation failed\n"));
 202                 cli_shutdown(c);
 203                 return NULL;
 204         }
 205
 206         if (!got_pass) {
 207                 char *pass = getpass("Password: ");
 208                 if (pass) {
 209                         pstrcpy(password, pass);
 210                 }
 211         }
 212
 213         if (!cli_session_setup(c, username,
 214                                password, strlen(password),
 215                                password, strlen(password),
 216                                lp_workgroup())) {
 217                 DEBUG(0,("session setup failed: %s\n", cli_errstr(c)));
 218                 return NULL;
 219         }
 220
 221         /*
 222          * These next two lines are needed to emulate
 223          * old client behaviour for people who have
 224          * scripts based on client output.
 225          * QUESTION ? Do we want to have a 'client compatibility
 226          * mode to turn these on/off ? JRA.
 227          */
 228
 229         if (*c->server_domain || *c->server_os || *c->server_type)
 230                 DEBUG(1,("Domain=[%s] OS=[%s] Server=[%s]\n",
 231                         c->server_domain,c->server_os,c->server_type));
 232
 233         DEBUG(4,(" session setup ok\n"));
 234
 235         if (!cli_send_tconX(c, share, "?????",
 236                             password, strlen(password)+1)) {
 237                 DEBUG(0,("tree connect failed: %s\n", cli_errstr(c)));
 238                 cli_shutdown(c);
 239                 return NULL;
 240         }
 241
 242         DEBUG(4,(" tconx ok\n"));
 243
 244         c->use_oplocks = use_oplocks;
 245
 246         return c;
 247 }
 248
 249
 250 static void reconnect(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 251                       char *nfs[NSERVERS],
 252                       int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 253                       char *share1, char *share2)
 254 {
 255         int server, conn, f, fstype;
 256         char *share[2];
 257         share[0] = share1;
 258         share[1] = share2;
 259
 260         fstype = FSTYPE_SMB;
 261
 262         for (server=0;server<NSERVERS;server++)
 263         for (conn=0;conn<NCONNECTIONS;conn++) {
 264                 if (cli[server][conn]) {
 265                         for (f=0;f<NFILES;f++) {
 266                                 cli_close(cli[server][conn], fnum[server][fstype][conn][f]);
 267                         }
 268                         cli_ulogoff(cli[server][conn]);
 269                         cli_shutdown(cli[server][conn]);
 270                         SAFE_FREE(cli[server][conn]);
 271                         cli[server][conn] = NULL;
 272                 }
 273                 cli[server][conn] = connect_one(share[server]);
 274                 if (!cli[server][conn]) {
 275                         DEBUG(0,("Failed to connect to %s\n", share[server]));
 276                         exit(1);
 277                 }
 278         }
 279 }
 280
 281
 282
 283 static BOOL test_one(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 284                      char *nfs[NSERVERS],
 285                      int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 286                      struct record *rec)
 287 {
 288         unsigned conn = rec->conn;
 289         unsigned f = rec->f;
 290         unsigned fstype = rec->fstype;
 291         unsigned start = rec->start;
 292         unsigned len = rec->len;
 293         unsigned r1 = rec->r1;
 294         unsigned r2 = rec->r2;
 295         unsigned op;
 296         int server;
 297         BOOL ret[NSERVERS];
 298
 299         if (r1 < READ_PCT) {
 300                 op = READ_LOCK;
 301         } else {
 302                 op = WRITE_LOCK;
 303         }
 304
 305         if (r2 < LOCK_PCT) {
 306                 /* set a lock */
 307                 for (server=0;server<NSERVERS;server++) {
 308                         ret[server] = try_lock(cli[server][conn], fstype,
 309                                                fnum[server][fstype][conn][f],
 310                                                start, len, op);
 311                 }
 312                 if (showall || ret[0] != ret[1]) {
 313                         printf("lock   conn=%u fstype=%u f=%u range=%u:%u(%u) op=%s -> %u:%u\n",
 314                                conn, fstype, f,
 315                                start, start+len-1, len,
 316                                op==READ_LOCK?"READ_LOCK":"WRITE_LOCK",
 317                                ret[0], ret[1]);
 318                 }
 319                 if (showall) brl_forall(print_brl);
 320                 if (ret[0] != ret[1]) return False;
 321         } else if (r2 < LOCK_PCT+UNLOCK_PCT) {
 322                 /* unset a lock */
 323                 for (server=0;server<NSERVERS;server++) {
 324                         ret[server] = try_unlock(cli[server][conn], fstype,
 325                                                  fnum[server][fstype][conn][f],
 326                                                  start, len);
 327                 }
 328                 if (showall || (!hide_unlock_fails && (ret[0] != ret[1]))) {
 329                         printf("unlock conn=%u fstype=%u f=%u range=%u:%u(%u)       -> %u:%u\n",
 330                                conn, fstype, f,
 331                                start, start+len-1, len,
 332                                ret[0], ret[1]);
 333                 }
 334                 if (showall) brl_forall(print_brl);
 335                 if (!hide_unlock_fails && ret[0] != ret[1]) return False;
 336         } else {
 337                 /* reopen the file */
 338                 for (server=0;server<NSERVERS;server++) {
 339                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 340                         fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 341                                                                  O_RDWR|O_CREAT);
 342                         if (fnum[server][fstype][conn][f] == -1) {
 343                                 printf("failed to reopen on share1\n");
 344                                 return False;
 345                         }
 346                 }
 347                 if (showall) {
 348                         printf("reopen conn=%u fstype=%u f=%u\n",
 349                                conn, fstype, f);
 350                         brl_forall(print_brl);
 351                 }
 352         }
 353         return True;
 354 }
 355
 356 static void close_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 357                         char *nfs[NSERVERS],
 358                         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 359 {
 360         int server, conn, f, fstype;
 361
 362         for (server=0;server<NSERVERS;server++)
 363         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 364         for (conn=0;conn<NCONNECTIONS;conn++)
 365         for (f=0;f<NFILES;f++) {
 366                 if (fnum[server][fstype][conn][f] != -1) {
 367                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 368                         fnum[server][fstype][conn][f] = -1;
 369                 }
 370         }
 371         for (server=0;server<NSERVERS;server++) {
 372                 cli_unlink(cli[server][0], FILENAME);
 373         }
 374 }
 375
 376 static void open_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 377                        char *nfs[NSERVERS],
 378                        int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 379 {
 380         int server, fstype, conn, f;
 381
 382         for (server=0;server<NSERVERS;server++)
 383         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 384         for (conn=0;conn<NCONNECTIONS;conn++)
 385         for (f=0;f<NFILES;f++) {
 386                 fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 387                                                          O_RDWR|O_CREAT);
 388                 if (fnum[server][fstype][conn][f] == -1) {
 389                         fprintf(stderr,"Failed to open fnum[%u][%u][%u][%u]\n",
 390                                 server, fstype, conn, f);
 391                         exit(1);
 392                 }
 393         }
 394 }
 395
 396
 397 static int retest(struct cli_state *cli[NSERVERS][NCONNECTIONS],
 398                   char *nfs[NSERVERS],
 399                   int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 400                   int n)
 401 {
 402         int i;
 403         printf("testing %u ...\n", n);
 404         for (i=0; i<n; i++) {
 405                 if (i && i % 100 == 0) {
 406                         printf("%u\n", i);
 407                 }
 408
 409                 if (recorded[i].needed &&
 410                     !test_one(cli, nfs, fnum, &recorded[i])) return i;
 411         }
 412         return n;
 413 }
 414
 415
 416 /* each server has two connections open to it. Each connection has two file
 417    descriptors open on the file - 8 file descriptors in total
 418
 419    we then do random locking ops in tamdem on the 4 fnums from each
 420    server and ensure that the results match
 421  */
 422 static void test_locks(char *share1, char *share2, char *nfspath1, char *nfspath2)
 423 {
 424         struct cli_state *cli[NSERVERS][NCONNECTIONS];
 425         char *nfs[NSERVERS];
 426         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES];
 427         int n, i, n1;
 428
 429         nfs[0] = nfspath1;
 430         nfs[1] = nfspath2;
 431
 432         ZERO_STRUCT(fnum);
 433         ZERO_STRUCT(cli);
 434
 435         recorded = (struct record *)malloc(sizeof(*recorded) * numops);
 436
 437         for (n=0; n<numops; n++) {
 438                 recorded[n].conn = random() % NCONNECTIONS;
 439                 recorded[n].fstype = random() % NUMFSTYPES;
 440                 recorded[n].f = random() % NFILES;
 441                 recorded[n].start = LOCKBASE + ((unsigned)random() % (LOCKRANGE-1));
 442                 recorded[n].len = 1 +
 443                         random() % (LOCKRANGE-(recorded[n].start-LOCKBASE));
 444                 recorded[n].start *= RANGE_MULTIPLE;
 445                 recorded[n].len *= RANGE_MULTIPLE;
 446                 recorded[n].r1 = random() % 100;
 447                 recorded[n].r2 = random() % 100;
 448                 recorded[n].needed = True;
 449         }
 450
 451         reconnect(cli, nfs, fnum, share1, share2);
 452         open_files(cli, nfs, fnum);
 453         n = retest(cli, nfs, fnum, numops);
 454
 455         if (n == numops || !analyze) return;
 456         n++;
 457
 458         while (1) {
 459                 n1 = n;
 460
 461                 close_files(cli, nfs, fnum);
 462                 reconnect(cli, nfs, fnum, share1, share2);
 463                 open_files(cli, nfs, fnum);
 464
 465                 for (i=0;i<n-1;i++) {
 466                         int m;
 467                         recorded[i].needed = False;
 468
 469                         close_files(cli, nfs, fnum);
 470                         open_files(cli, nfs, fnum);
 471
 472                         m = retest(cli, nfs, fnum, n);
 473                         if (m == n) {
 474                                 recorded[i].needed = True;
 475                         } else {
 476                                 if (i < m) {
 477                                         memmove(&recorded[i], &recorded[i+1],
 478                                                 (m-i)*sizeof(recorded[0]));
 479                                 }
 480                                 n = m;
 481                                 i--;
 482                         }
 483                 }
 484
 485                 if (n1 == n) break;
 486         }
 487
 488         close_files(cli, nfs, fnum);
 489         reconnect(cli, nfs, fnum, share1, share2);
 490         open_files(cli, nfs, fnum);
 491         showall = True;
 492         n1 = retest(cli, nfs, fnum, n);
 493         if (n1 != n-1) {
 494                 printf("ERROR - inconsistent result (%u %u)\n", n1, n);
 495         }
 496         close_files(cli, nfs, fnum);
 497
 498         for (i=0;i<n;i++) {
 499                 printf("{%u, %u, %u, %u, %u, %u, %u, %u},\n",
 500                        recorded[i].r1,
 501                        recorded[i].r2,
 502                        recorded[i].conn,
 503                        recorded[i].fstype,
 504                        recorded[i].f,
 505                        recorded[i].start,
 506                        recorded[i].len,
 507                        recorded[i].needed);
 508         }
 509 }
 510
 511
 512
 513 static void usage(void)
 514 {
 515         printf(
 516 "Usage:\n\
 517   locktest //server1/share1 //server2/share2 /path1 /path2 [options..]\n\
 518   options:\n\
 519         -U user%%pass\n\
 520         -s seed\n\
 521         -o numops\n\
 522         -u          hide unlock fails\n\
 523         -a          (show all ops)\n\
 524         -O          use oplocks\n\
 525 ");
 526 }
 527
 528 /****************************************************************************
 529   main program
 530 ****************************************************************************/
 531  int main(int argc,char *argv[])
 532 {
 533         char *share1, *share2, *nfspath1, *nfspath2;
 534         extern char *optarg;
 535         extern int optind;
 536         extern FILE *dbf;
 537         int opt;
 538         char *p;
 539         int seed;
 540         static pstring servicesf = CONFIGFILE;
 541
 542         setlinebuf(stdout);
 543
 544         dbf = stderr;
 545
 546         if (argc < 5 || argv[1][0] == '-') {
 547                 usage();
 548                 exit(1);
 549         }
 550
 551         share1 = argv[1];
 552         share2 = argv[2];
 553         nfspath1 = argv[3];
 554         nfspath2 = argv[4];
 555
 556         all_string_sub(share1,"/","\\",0);
 557         all_string_sub(share2,"/","\\",0);
 558
 559         setup_logging(argv[0],True);
 560
 561         argc -= 4;
 562         argv += 4;
 563
 564         TimeInit();
 565         charset_initialise();
 566         codepage_initialise(lp_client_code_page());
 567
 568         lp_load(servicesf,True,False,False);
 569         load_interfaces();
 570
 571         if (getenv("USER")) {
 572                 pstrcpy(username,getenv("USER"));
 573         }
 574
 575         seed = time(NULL);
 576
 577         while ((opt = getopt(argc, argv, "U:s:ho:aAW:O")) != EOF) {
 578                 switch (opt) {
 579                 case 'U':
 580                         pstrcpy(username,optarg);
 581                         p = strchr(username,'%');
 582                         if (p) {
 583                                 *p = 0;
 584                                 pstrcpy(password, p+1);
 585                                 got_pass = 1;
 586                         }
 587                         break;
 588                 case 's':
 589                         seed = atoi(optarg);
 590                         break;
 591                 case 'u':
 592                         hide_unlock_fails = True;
 593                         break;
 594                 case 'o':
 595                         numops = atoi(optarg);
 596                         break;
 597                 case 'O':
 598                         use_oplocks = True;
 599                         break;
 600                 case 'a':
 601                         showall = True;
 602                         break;
 603                 case 'A':
 604                         analyze = True;
 605                         break;
 606                 case 'h':
 607                         usage();
 608                         exit(1);
 609                 default:
 610                         printf("Unknown option %c (%d)\n", (char)opt, opt);
 611                         exit(1);
 612                 }
 613         }
 614
 615         argc -= optind;
 616         argv += optind;
 617
 618         DEBUG(0,("seed=%u\n", seed));
 619         srandom(seed);
 620
 621         locking_init(1);
 622         test_locks(share1, share2, nfspath1, nfspath2);
 623
 624         return(0);
 625 }