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 #include "lib/events/events.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         unsigned int 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         char *path;
  67         int ret;
  68
  69         switch (fstype) {
  70         case FSTYPE_SMB:
  71                 return smbcli_open(c, fname, flags, DENY_NONE);
  72
  73         case FSTYPE_NFS:
  74                 asprintf(&path, "%s%s", nfs, fname);
  75                 string_replace(path,'\\', '/');
  76                 ret = open(path, flags, 0666);
  77                 SAFE_FREE(Path);
  78                 return ret;
  79         }
  80
  81         return -1;
  82 }
  83
  84 static bool try_close(struct smbcli_state *c, int fstype, int fd)
  85 {
  86         switch (fstype) {
  87         case FSTYPE_SMB:
  88                 return smbcli_close(c, fd);
  89
  90         case FSTYPE_NFS:
  91                 return close(fd) == 0;
  92         }
  93
  94         return false;
  95 }
  96
  97 static bool try_lock(struct smbcli_state *c, int fstype,
  98                      int fd, unsigned int start, unsigned int len,
  99                      enum brl_type op)
 100 {
 101         struct flock lock;
 102
 103         switch (fstype) {
 104         case FSTYPE_SMB:
 105                 return smbcli_lock(c, fd, start, len, LOCK_TIMEOUT, op);
 106
 107         case FSTYPE_NFS:
 108                 lock.l_type = (op==READ_LOCK) ? F_RDLCK:F_WRLCK;
 109                 lock.l_whence = SEEK_SET;
 110                 lock.l_start = start;
 111                 lock.l_len = len;
 112                 lock.l_pid = getpid();
 113                 return fcntl(fd,F_SETLK,&lock) == 0;
 114         }
 115
 116         return false;
 117 }
 118
 119 static bool try_unlock(struct smbcli_state *c, int fstype,
 120                        int fd, unsigned int start, unsigned int len)
 121 {
 122         struct flock lock;
 123
 124         switch (fstype) {
 125         case FSTYPE_SMB:
 126                 return smbcli_unlock(c, fd, start, len);
 127
 128         case FSTYPE_NFS:
 129                 lock.l_type = F_UNLCK;
 130                 lock.l_whence = SEEK_SET;
 131                 lock.l_start = start;
 132                 lock.l_len = len;
 133                 lock.l_pid = getpid();
 134                 return fcntl(fd,F_SETLK,&lock) == 0;
 135         }
 136
 137         return false;
 138 }
 139
 140 /*****************************************************
 141 return a connection to a server
 142 *******************************************************/
 143 static struct smbcli_state *connect_one(TALLOC_CTX *mem_ctx,
 144                                                                                 char *share, const char **ports,
 145                                         struct smb_options *options,
 146                                         struct smb_options *session_options,
 147                                         struct gensec_settings *gensec_settings,
 148                                         struct tevent_context *ev)
 149 {
 150         struct smbcli_state *c;
 151         char *server_n;
 152         char *server;
 153         char *myname;
 154         static int count;
 155         NTSTATUS nt_status;
 156
 157         server = talloc_strdup(mem_ctx, share+2);
 158         share = strchr_m(server,'\\');
 159         if (!share) return NULL;
 160         *share = 0;
 161         share++;
 162
 163         server_n = server;
 164
 165         if (!got_pass) {
 166                 char *pass = getpass("Password: ");
 167                 if (pass) {
 168                         password = talloc_strdup(mem_ctx, pass);
 169                 }
 170         }
 171
 172         myname = talloc_asprintf(mem_ctx, "lock-%u-%u", getpid(), count++);
 173
 174         nt_status = smbcli_full_connection(NULL,
 175                            &c, myname, server_n, ports, share, NULL,
 176                            username, lp_workgroup(), password, ev,
 177                            options, session_options, gensec_settings);
 178         if (!NT_STATUS_IS_OK(nt_status)) {
 179                 DEBUG(0, ("smbcli_full_connection failed with error %s\n", nt_errstr(nt_status)));
 180                 return NULL;
 181         }
 182
 183         c->use_oplocks = use_oplocks;
 184
 185         return c;
 186 }
 187
 188
 189 static void reconnect(TALLOC_CTX *mem_ctx,
 190                                           struct smbcli_state *cli[NSERVERS][NCONNECTIONS],
 191                       char *nfs[NSERVERS],
 192                       int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 193                       const char **ports,
 194                       struct smbcli_options *options,
 195                       struct smbcli_session_options *session_options,
 196                           struct gensec_settings *gensec_settings,
 197                       struct tevent_context *ev,
 198                       char *share1, char *share2)
 199 {
 200         int server, conn, f, fstype;
 201         char *share[2];
 202         share[0] = share1;
 203         share[1] = share2;
 204
 205         fstype = FSTYPE_SMB;
 206
 207         for (server=0;server<NSERVERS;server++)
 208         for (conn=0;conn<NCONNECTIONS;conn++) {
 209                 if (cli[server][conn]) {
 210                         for (f=0;f<NFILES;f++) {
 211                                 smbcli_close(cli[server][conn], fnum[server][fstype][conn][f]);
 212                         }
 213                         smbcli_ulogoff(cli[server][conn]);
 214                         talloc_free(cli[server][conn]);
 215                 }
 216                 cli[server][conn] = connect_one(mem_ctx, share[server], ports, options, session_options, gensec_settings, ev);
 217                 if (!cli[server][conn]) {
 218                         DEBUG(0,("Failed to connect to %s\n", share[server]));
 219                         exit(1);
 220                 }
 221         }
 222 }
 223
 224
 225
 226 static bool test_one(struct smbcli_state *cli[NSERVERS][NCONNECTIONS],
 227                      char *nfs[NSERVERS],
 228                      int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 229                      struct record *rec)
 230 {
 231         unsigned int conn = rec->conn;
 232         unsigned int f = rec->f;
 233         unsigned int fstype = rec->fstype;
 234         unsigned int start = rec->start;
 235         unsigned int len = rec->len;
 236         unsigned int r1 = rec->r1;
 237         unsigned int r2 = rec->r2;
 238         enum brl_type op;
 239         int server;
 240         bool ret[NSERVERS];
 241
 242         if (r1 < READ_PCT) {
 243                 op = READ_LOCK;
 244         } else {
 245                 op = WRITE_LOCK;
 246         }
 247
 248         if (r2 < LOCK_PCT) {
 249                 /* set a lock */
 250                 for (server=0;server<NSERVERS;server++) {
 251                         ret[server] = try_lock(cli[server][conn], fstype,
 252                                                fnum[server][fstype][conn][f],
 253                                                start, len, op);
 254                 }
 255                 if (showall || ret[0] != ret[1]) {
 256                         printf("lock   conn=%u fstype=%u f=%u range=%u:%u(%u) op=%s -> %u:%u\n",
 257                                conn, fstype, f,
 258                                start, start+len-1, len,
 259                                op==READ_LOCK?"READ_LOCK":"WRITE_LOCK",
 260                                ret[0], ret[1]);
 261                 }
 262                 if (ret[0] != ret[1]) return false;
 263         } else if (r2 < LOCK_PCT+UNLOCK_PCT) {
 264                 /* unset a lock */
 265                 for (server=0;server<NSERVERS;server++) {
 266                         ret[server] = try_unlock(cli[server][conn], fstype,
 267                                                  fnum[server][fstype][conn][f],
 268                                                  start, len);
 269                 }
 270                 if (showall || (!hide_unlock_fails && (ret[0] != ret[1]))) {
 271                         printf("unlock conn=%u fstype=%u f=%u range=%u:%u(%u)       -> %u:%u\n",
 272                                conn, fstype, f,
 273                                start, start+len-1, len,
 274                                ret[0], ret[1]);
 275                 }
 276                 if (!hide_unlock_fails && ret[0] != ret[1]) return false;
 277         } else {
 278                 /* reopen the file */
 279                 for (server=0;server<NSERVERS;server++) {
 280                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 281                         fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 282                                                                  O_RDWR|O_CREAT);
 283                         if (fnum[server][fstype][conn][f] == -1) {
 284                                 printf("failed to reopen on share1\n");
 285                                 return false;
 286                         }
 287                 }
 288                 if (showall) {
 289                         printf("reopen conn=%u fstype=%u f=%u\n",
 290                                conn, fstype, f);
 291                 }
 292         }
 293         return true;
 294 }
 295
 296 static void close_files(struct smbcli_state *cli[NSERVERS][NCONNECTIONS],
 297                         char *nfs[NSERVERS],
 298                         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 299 {
 300         int server, conn, f, fstype;
 301
 302         for (server=0;server<NSERVERS;server++)
 303         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 304         for (conn=0;conn<NCONNECTIONS;conn++)
 305         for (f=0;f<NFILES;f++) {
 306                 if (fnum[server][fstype][conn][f] != -1) {
 307                         try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]);
 308                         fnum[server][fstype][conn][f] = -1;
 309                 }
 310         }
 311         for (server=0;server<NSERVERS;server++) {
 312                 smbcli_unlink(cli[server][0], FILENAME);
 313         }
 314 }
 315
 316 static void open_files(struct smbcli_state *cli[NSERVERS][NCONNECTIONS],
 317                        char *nfs[NSERVERS],
 318                        int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES])
 319 {
 320         int server, fstype, conn, f;
 321
 322         for (server=0;server<NSERVERS;server++)
 323         for (fstype=0;fstype<NUMFSTYPES;fstype++)
 324         for (conn=0;conn<NCONNECTIONS;conn++)
 325         for (f=0;f<NFILES;f++) {
 326                 fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME,
 327                                                          O_RDWR|O_CREAT);
 328                 if (fnum[server][fstype][conn][f] == -1) {
 329                         fprintf(stderr,"Failed to open fnum[%u][%u][%u][%u]\n",
 330                                 server, fstype, conn, f);
 331                         exit(1);
 332                 }
 333         }
 334 }
 335
 336
 337 static int retest(struct smbcli_state *cli[NSERVERS][NCONNECTIONS],
 338                   char *nfs[NSERVERS],
 339                   int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES],
 340                   int n)
 341 {
 342         int i;
 343         printf("testing %u ...\n", n);
 344         for (i=0; i<n; i++) {
 345                 if (i && i % 100 == 0) {
 346                         printf("%u\n", i);
 347                 }
 348
 349                 if (recorded[i].needed &&
 350                     !test_one(cli, nfs, fnum, &recorded[i])) return i;
 351         }
 352         return n;
 353 }
 354
 355
 356 /* each server has two connections open to it. Each connection has two file
 357    descriptors open on the file - 8 file descriptors in total
 358
 359    we then do random locking ops in tamdem on the 4 fnums from each
 360    server and ensure that the results match
 361  */
 362 static void test_locks(TALLOC_CTX *mem_ctx, char *share1, char *share2,
 363                         char *nfspath1, char *nfspath2,
 364                         const char **ports,
 365                         struct smbcli_options *options,
 366                         struct smbcli_session_options *session_options,
 367                         struct gensec_settings *gensec_settings,
 368                         struct tevent_context *ev)
 369 {
 370         struct smbcli_state *cli[NSERVERS][NCONNECTIONS];
 371         char *nfs[NSERVERS];
 372         int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES];
 373         int n, i, n1;
 374
 375         nfs[0] = nfspath1;
 376         nfs[1] = nfspath2;
 377
 378         ZERO_STRUCT(fnum);
 379         ZERO_STRUCT(cli);
 380
 381         recorded = malloc_array_p(struct record, numops);
 382
 383         for (n=0; n<numops; n++) {
 384                 recorded[n].conn = random() % NCONNECTIONS;
 385                 recorded[n].fstype = random() % NUMFSTYPES;
 386                 recorded[n].f = random() % NFILES;
 387                 recorded[n].start = LOCKBASE + ((unsigned int)random() % (LOCKRANGE-1));
 388                 recorded[n].len = 1 +
 389                         random() % (LOCKRANGE-(recorded[n].start-LOCKBASE));
 390                 recorded[n].start *= RANGE_MULTIPLE;
 391                 recorded[n].len *= RANGE_MULTIPLE;
 392                 recorded[n].r1 = random() % 100;
 393                 recorded[n].r2 = random() % 100;
 394                 recorded[n].needed = true;
 395         }
 396
 397         reconnect(mem_ctx, cli, nfs, fnum, ports, options, session_options, gensec_settings, ev, share1, share2);
 398         open_files(cli, nfs, fnum);
 399         n = retest(cli, nfs, fnum, numops);
 400
 401         if (n == numops || !analyze) return;
 402         n++;
 403
 404         while (1) {
 405                 n1 = n;
 406
 407                 close_files(cli, nfs, fnum);
 408                 reconnect(mem_ctx, cli, nfs, fnum, ports, options, session_options, ev, share1, share2);
 409                 open_files(cli, nfs, fnum);
 410
 411                 for (i=0;i<n-1;i++) {
 412                         int m;
 413                         recorded[i].needed = false;
 414
 415                         close_files(cli, nfs, fnum);
 416                         open_files(cli, nfs, fnum);
 417
 418                         m = retest(cli, nfs, fnum, n);
 419                         if (m == n) {
 420                                 recorded[i].needed = true;
 421                         } else {
 422                                 if (i < m) {
 423                                         memmove(&recorded[i], &recorded[i+1],
 424                                                 (m-i)*sizeof(recorded[0]));
 425                                 }
 426                                 n = m;
 427                                 i--;
 428                         }
 429                 }
 430
 431                 if (n1 == n) break;
 432         }
 433
 434         close_files(cli, nfs, fnum);
 435         reconnect(mem_ctx, cli, nfs, fnum, ports, options, session_options, gensec_settings, ev, share1, share2);
 436         open_files(cli, nfs, fnum);
 437         showall = true;
 438         n1 = retest(cli, nfs, fnum, n);
 439         if (n1 != n-1) {
 440                 printf("ERROR - inconsistent result (%u %u)\n", n1, n);
 441         }
 442         close_files(cli, nfs, fnum);
 443
 444         for (i=0;i<n;i++) {
 445                 printf("{%u, %u, %u, %u, %u, %u, %u, %u},\n",
 446                        recorded[i].r1,
 447                        recorded[i].r2,
 448                        recorded[i].conn,
 449                        recorded[i].fstype,
 450                        recorded[i].f,
 451                        recorded[i].start,
 452                        recorded[i].len,
 453                        recorded[i].needed);
 454         }
 455 }
 456
 457
 458
 459 static void usage(void)
 460 {
 461         printf(
 462 "Usage:\n\
 463   locktest //server1/share1 //server2/share2 /path1 /path2 [options..]\n\
 464   options:\n\
 465         -U user%%pass\n\
 466         -s seed\n\
 467         -o numops\n\
 468         -u          hide unlock fails\n\
 469         -a          (show all ops)\n\
 470         -O          use oplocks\n\
 471 ");
 472 }
 473
 474 /****************************************************************************
 475   main program
 476 ****************************************************************************/
 477  int main(int argc,char *argv[])
 478 {
 479         char *share1, *share2, *nfspath1, *nfspath2;
 480         extern char *optarg;
 481         extern int optind;
 482         struct smbcli_options options;
 483         struct smbcli_session_options session_options;
 484         TALLOC_CTX *mem_ctx;
 485         int opt;
 486         char *p;
 487         int seed;
 488         struct loadparm_context *lp_ctx;
 489         struct tevent_context *ev;
 490
 491         mem_ctx = talloc_autofree_context();
 492
 493         setlinebuf(stdout);
 494
 495         dbf = x_stderr;
 496
 497         if (argc < 5 || argv[1][0] == '-') {
 498                 usage();
 499                 exit(1);
 500         }
 501
 502         share1 = argv[1];
 503         share2 = argv[2];
 504         nfspath1 = argv[3];
 505         nfspath2 = argv[4];
 506
 507         all_string_sub(share1,"/","\\",0);
 508         all_string_sub(share2,"/","\\",0);
 509
 510         setup_logging(argv[0], DEBUG_STDOUT);
 511
 512         argc -= 4;
 513         argv += 4;
 514
 515         lp_ctx = loadparm_init(mem_ctx);
 516         lp_load(lp_ctx, dyn_CONFIGFILE);
 517
 518         if (getenv("USER")) {
 519                 username = talloc_strdup(mem_ctx, getenv("USER"));
 520         }
 521
 522         seed = time(NULL);
 523
 524         while ((opt = getopt(argc, argv, "U:s:ho:aAW:O")) != EOF) {
 525                 switch (opt) {
 526                 case 'U':
 527                         username = talloc_strdup(mem_ctx, optarg);
 528                         p = strchr_m(username,'%');
 529                         if (p) {
 530                                 *p = 0;
 531                                 password = talloc_strdup(mem_ctx, p+1);
 532                                 got_pass = 1;
 533                         }
 534                         break;
 535                 case 's':
 536                         seed = atoi(optarg);
 537                         break;
 538                 case 'u':
 539                         hide_unlock_fails = true;
 540                         break;
 541                 case 'o':
 542                         numops = atoi(optarg);
 543                         break;
 544                 case 'O':
 545                         use_oplocks = true;
 546                         break;
 547                 case 'a':
 548                         showall = true;
 549                         break;
 550                 case 'A':
 551                         analyze = true;
 552                         break;
 553                 case 'h':
 554                         usage();
 555                         exit(1);
 556                 default:
 557                         printf("Unknown option %c (%d)\n", (char)opt, opt);
 558                         exit(1);
 559                 }
 560         }
 561
 562         argc -= optind;
 563         argv += optind;
 564
 565         DEBUG(0,("seed=%u\n", seed));
 566         srandom(seed);
 567
 568         ev = s4_event_context_init(mem_ctx);
 569
 570         locking_init(1);
 571         lp_smbcli_options(lp_ctx, &options);
 572         lp_smbcli_session_options(lp_ctx, &session_options);
 573         test_locks(mem_ctx, share1, share2, nfspath1, nfspath2,
 574                            lp_smb_ports(lp_ctx),
 575                            &options, &session_options, lp_gensec_settings(lp_ctx), ev);
 576
 577         return(0);
 578 }