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 23static fstring password; 24static fstring username; 25static int got_pass; 26static int numops = 1000; 27static BOOL showall; 28static BOOL analyze; 29static BOOL hide_unlock_fails; 30static BOOL use_oplocks; 31 32extern char *optarg; 33extern int optind; 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 57struct record { 58 char r1, r2; 59 char conn, f, fstype; 60 unsigned start, len; 61 char needed; 62}; 63 64static struct record *recorded; 65 66static int try_open(struct cli_state *c, char *nfs, int fstype, const 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 83static 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 96static BOOL try_lock(struct cli_state *c, int fstype, 97 int fd, unsigned start, unsigned len, 98 enum brl_type 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 118static 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 139static void print_brl(SMB_DEV_T dev, SMB_INO_T ino, struct process_id pid, 140 enum brl_type lock_type, 141 enum brl_flavour lock_flav, 142 br_off start, br_off size) 143{ 144 printf("%6d %05x:%05x %s %.0f:%.0f(%.0f)\n", 145 (int)procid_to_pid(&pid), (int)dev, (int)ino, 146 lock_type==READ_LOCK?"R":"W", 147 (double)start, (double)start+size-1,(double)size); 148 149} 150 151/***************************************************** 152return a connection to a server 153*******************************************************/ 154static struct cli_state *connect_one(char *share) 155{ 156 struct cli_state *c; 157 char *server_n; 158 fstring server; 159 fstring myname; 160 static int count; 161 NTSTATUS nt_status; 162 163 fstrcpy(server,share+2); 164 share = strchr_m(server,'\\'); 165 if (!share) return NULL; 166 *share = 0; 167 share++; 168 169 server_n = server; 170 171 if (!got_pass) { 172 char *pass = getpass("Password: "); 173 if (pass) { 174 fstrcpy(password, pass); 175 } 176 } 177 178 slprintf(myname,sizeof(myname), "lock-%lu-%u", (unsigned long)getpid(), count++); 179 180 nt_status = cli_full_connection(&c, myname, server_n, NULL, 0, share, "?????", 181 username, lp_workgroup(), password, 0, 182 Undefined, NULL); 183 184 if (!NT_STATUS_IS_OK(nt_status)) { 185 DEBUG(0, ("cli_full_connection failed with error %s\n", nt_errstr(nt_status))); 186 return NULL; 187 } 188 189 c->use_oplocks = use_oplocks; 190 191 return c; 192} 193 194 195static void reconnect(struct cli_state *cli[NSERVERS][NCONNECTIONS], 196 char *nfs[NSERVERS], 197 int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES], 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 cli_close(cli[server][conn], fnum[server][fstype][conn][f]); 212 } 213 cli_ulogoff(cli[server][conn]); 214 cli_shutdown(cli[server][conn]); 215 } 216 cli[server][conn] = connect_one(share[server]); 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 226static BOOL test_one(struct cli_state *cli[NSERVERS][NCONNECTIONS], 227 char *nfs[NSERVERS], 228 int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES], 229 struct record *rec) 230{ 231 unsigned conn = rec->conn; 232 unsigned f = rec->f; 233 unsigned fstype = rec->fstype; 234 unsigned start = rec->start; 235 unsigned len = rec->len; 236 unsigned r1 = rec->r1; 237 unsigned 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 (showall) brl_forall(print_brl); 263 if (ret[0] != ret[1]) return False; 264 } else if (r2 < LOCK_PCT+UNLOCK_PCT) { 265 /* unset a lock */ 266 for (server=0;server<NSERVERS;server++) { 267 ret[server] = try_unlock(cli[server][conn], fstype, 268 fnum[server][fstype][conn][f], 269 start, len); 270 } 271 if (showall || (!hide_unlock_fails && (ret[0] != ret[1]))) { 272 printf("unlock conn=%u fstype=%u f=%u range=%u:%u(%u) -> %u:%u\n", 273 conn, fstype, f, 274 start, start+len-1, len, 275 ret[0], ret[1]); 276 } 277 if (showall) brl_forall(print_brl); 278 if (!hide_unlock_fails && ret[0] != ret[1]) return False; 279 } else { 280 /* reopen the file */ 281 for (server=0;server<NSERVERS;server++) { 282 try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]); 283 fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME, 284 O_RDWR|O_CREAT); 285 if (fnum[server][fstype][conn][f] == -1) { 286 printf("failed to reopen on share1\n"); 287 return False; 288 } 289 } 290 if (showall) { 291 printf("reopen conn=%u fstype=%u f=%u\n", 292 conn, fstype, f); 293 brl_forall(print_brl); 294 } 295 } 296 return True; 297} 298 299static void close_files(struct cli_state *cli[NSERVERS][NCONNECTIONS], 300 char *nfs[NSERVERS], 301 int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES]) 302{ 303 int server, conn, f, fstype; 304 305 for (server=0;server<NSERVERS;server++) 306 for (fstype=0;fstype<NUMFSTYPES;fstype++) 307 for (conn=0;conn<NCONNECTIONS;conn++) 308 for (f=0;f<NFILES;f++) { 309 if (fnum[server][fstype][conn][f] != -1) { 310 try_close(cli[server][conn], fstype, fnum[server][fstype][conn][f]); 311 fnum[server][fstype][conn][f] = -1; 312 } 313 } 314 for (server=0;server<NSERVERS;server++) { 315 cli_unlink(cli[server][0], FILENAME); 316 } 317} 318 319static void open_files(struct cli_state *cli[NSERVERS][NCONNECTIONS], 320 char *nfs[NSERVERS], 321 int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES]) 322{ 323 int server, fstype, conn, f; 324 325 for (server=0;server<NSERVERS;server++) 326 for (fstype=0;fstype<NUMFSTYPES;fstype++) 327 for (conn=0;conn<NCONNECTIONS;conn++) 328 for (f=0;f<NFILES;f++) { 329 fnum[server][fstype][conn][f] = try_open(cli[server][conn], nfs[server], fstype, FILENAME, 330 O_RDWR|O_CREAT); 331 if (fnum[server][fstype][conn][f] == -1) { 332 fprintf(stderr,"Failed to open fnum[%u][%u][%u][%u]\n", 333 server, fstype, conn, f); 334 exit(1); 335 } 336 } 337} 338 339 340static int retest(struct cli_state *cli[NSERVERS][NCONNECTIONS], 341 char *nfs[NSERVERS], 342 int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES], 343 int n) 344{ 345 int i; 346 printf("testing %u ...\n", n); 347 for (i=0; i<n; i++) { 348 if (i && i % 100 == 0) { 349 printf("%u\n", i); 350 } 351 352 if (recorded[i].needed && 353 !test_one(cli, nfs, fnum, &recorded[i])) return i; 354 } 355 return n; 356} 357 358 359/* each server has two connections open to it. Each connection has two file 360 descriptors open on the file - 8 file descriptors in total 361 362 we then do random locking ops in tamdem on the 4 fnums from each 363 server and ensure that the results match 364 */ 365static void test_locks(char *share1, char *share2, char *nfspath1, char *nfspath2) 366{ 367 struct cli_state *cli[NSERVERS][NCONNECTIONS]; 368 char *nfs[NSERVERS]; 369 int fnum[NSERVERS][NUMFSTYPES][NCONNECTIONS][NFILES]; 370 int n, i, n1; 371 372 nfs[0] = nfspath1; 373 nfs[1] = nfspath2; 374 375 ZERO_STRUCT(fnum); 376 ZERO_STRUCT(cli); 377 378 recorded = SMB_MALLOC_ARRAY(struct record, numops); 379 380 for (n=0; n<numops; n++) { 381 recorded[n].conn = random() % NCONNECTIONS; 382 recorded[n].fstype = random() % NUMFSTYPES; 383 recorded[n].f = random() % NFILES; 384 recorded[n].start = LOCKBASE + ((unsigned)random() % (LOCKRANGE-1)); 385 recorded[n].len = 1 + 386 random() % (LOCKRANGE-(recorded[n].start-LOCKBASE)); 387 recorded[n].start *= RANGE_MULTIPLE; 388 recorded[n].len *= RANGE_MULTIPLE; 389 recorded[n].r1 = random() % 100; 390 recorded[n].r2 = random() % 100; 391 recorded[n].needed = True; 392 } 393 394 reconnect(cli, nfs, fnum, share1, share2); 395 open_files(cli, nfs, fnum); 396 n = retest(cli, nfs, fnum, numops); 397 398 if (n == numops || !analyze) return; 399 n++; 400 401 while (1) { 402 n1 = n; 403 404 close_files(cli, nfs, fnum); 405 reconnect(cli, nfs, fnum, share1, share2); 406 open_files(cli, nfs, fnum); 407 408 for (i=0;i<n-1;i++) { 409 int m; 410 recorded[i].needed = False; 411 412 close_files(cli, nfs, fnum); 413 open_files(cli, nfs, fnum); 414 415 m = retest(cli, nfs, fnum, n); 416 if (m == n) { 417 recorded[i].needed = True; 418 } else { 419 if (i < m) { 420 memmove(&recorded[i], &recorded[i+1], 421 (m-i)*sizeof(recorded[0])); 422 } 423 n = m; 424 i--; 425 } 426 } 427 428 if (n1 == n) break; 429 } 430 431 close_files(cli, nfs, fnum); 432 reconnect(cli, nfs, fnum, share1, share2); 433 open_files(cli, nfs, fnum); 434 showall = True; 435 n1 = retest(cli, nfs, fnum, n); 436 if (n1 != n-1) { 437 printf("ERROR - inconsistent result (%u %u)\n", n1, n); 438 } 439 close_files(cli, nfs, fnum); 440 441 for (i=0;i<n;i++) { 442 printf("{%u, %u, %u, %u, %u, %u, %u, %u},\n", 443 recorded[i].r1, 444 recorded[i].r2, 445 recorded[i].conn, 446 recorded[i].fstype, 447 recorded[i].f, 448 recorded[i].start, 449 recorded[i].len, 450 recorded[i].needed); 451 } 452} 453 454 455 456static void usage(void) 457{ 458 printf( 459"Usage:\n\ 460 locktest //server1/share1 //server2/share2 /path1 /path2 [options..]\n\ 461 options:\n\ 462 -U user%%pass\n\ 463 -s seed\n\ 464 -o numops\n\ 465 -u hide unlock fails\n\ 466 -a (show all ops)\n\ 467 -O use oplocks\n\ 468"); 469} 470 471/**************************************************************************** 472 main program 473****************************************************************************/ 474 int main(int argc,char *argv[]) 475{ 476 char *share1, *share2, *nfspath1, *nfspath2; 477 int opt; 478 char *p; 479 int seed; 480 481 setlinebuf(stdout); 482 483 dbf = x_stderr; 484 485 if (argc < 5 || argv[1][0] == '-') { 486 usage(); 487 exit(1); 488 } 489 490 share1 = argv[1]; 491 share2 = argv[2]; 492 nfspath1 = argv[3]; 493 nfspath2 = argv[4]; 494 495 all_string_sub(share1,"/","\\",0); 496 all_string_sub(share2,"/","\\",0); 497 498 setup_logging(argv[0],True); 499 500 argc -= 4; 501 argv += 4; 502 503 lp_load(dyn_CONFIGFILE,True,False,False,True); 504 load_interfaces(); 505 506 if (getenv("USER")) { 507 fstrcpy(username,getenv("USER")); 508 } 509 510 seed = time(NULL); 511 512 while ((opt = getopt(argc, argv, "U:s:ho:aAW:O")) != EOF) { 513 switch (opt) { 514 case 'U': 515 fstrcpy(username,optarg); 516 p = strchr_m(username,'%'); 517 if (p) { 518 *p = 0; 519 fstrcpy(password, p+1); 520 got_pass = 1; 521 } 522 break; 523 case 's': 524 seed = atoi(optarg); 525 break; 526 case 'u': 527 hide_unlock_fails = True; 528 break; 529 case 'o': 530 numops = atoi(optarg); 531 break; 532 case 'O': 533 use_oplocks = True; 534 break; 535 case 'a': 536 showall = True; 537 break; 538 case 'A': 539 analyze = True; 540 break; 541 case 'h': 542 usage(); 543 exit(1); 544 default: 545 printf("Unknown option %c (%d)\n", (char)opt, opt); 546 exit(1); 547 } 548 } 549 550 argc -= optind; 551 argv += optind; 552 553 DEBUG(0,("seed=%u\n", seed)); 554 srandom(seed); 555 556 locking_init(1); 557 test_locks(share1, share2, nfspath1, nfspath2); 558 559 return(0); 560} 561