svc_dg.c revision 1.15
1 /* $NetBSD: svc_dg.c,v 1.15 2013/03/04 17:29:03 christos Exp $ */ 2 3 /* 4 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 5 * unrestricted use provided that this legend is included on all tape 6 * media and as a part of the software program in whole or part. Users 7 * may copy or modify Sun RPC without charge, but are not authorized 8 * to license or distribute it to anyone else except as part of a product or 9 * program developed by the user. 10 * 11 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 12 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 13 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 14 * 15 * Sun RPC is provided with no support and without any obligation on the 16 * part of Sun Microsystems, Inc. to assist in its use, correction, 17 * modification or enhancement. 18 * 19 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 20 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 21 * OR ANY PART THEREOF. 22 * 23 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 24 * or profits or other special, indirect and consequential damages, even if 25 * Sun has been advised of the possibility of such damages. 26 * 27 * Sun Microsystems, Inc. 28 * 2550 Garcia Avenue 29 * Mountain View, California 94043 30 */ 31 32 /* 33 * Copyright (c) 1986-1991 by Sun Microsystems Inc. 34 */ 35 36 /* #ident "@(#)svc_dg.c 1.17 94/04/24 SMI" */ 37 38 39 /* 40 * svc_dg.c, Server side for connectionless RPC. 41 * 42 * Does some caching in the hopes of achieving execute-at-most-once semantics. 43 */ 44 45 #include <sys/cdefs.h> 46 #if defined(LIBC_SCCS) && !defined(lint) 47 __RCSID("$NetBSD: svc_dg.c,v 1.15 2013/03/04 17:29:03 christos Exp $"); 48 #endif 49 50 #include "namespace.h" 51 #include "reentrant.h" 52 #include <sys/types.h> 53 #include <sys/socket.h> 54 #include <rpc/rpc.h> 55 #include <assert.h> 56 #include <errno.h> 57 #include <unistd.h> 58 #include <stdio.h> 59 #include <stdlib.h> 60 #include <string.h> 61 #ifdef RPC_CACHE_DEBUG 62 #include <netconfig.h> 63 #include <netdir.h> 64 #endif 65 #include <err.h> 66 67 #include "rpc_internal.h" 68 #include "svc_dg.h" 69 70 #define su_data(xprt) ((struct svc_dg_data *)(xprt->xp_p2)) 71 #define rpc_buffer(xprt) ((xprt)->xp_p1) 72 73 #ifdef __weak_alias 74 __weak_alias(svc_dg_create,_svc_dg_create) 75 #endif 76 77 #ifndef MAX 78 #define MAX(a, b) (((a) > (b)) ? (a) : (b)) 79 #endif 80 81 static void svc_dg_ops(SVCXPRT *); 82 static enum xprt_stat svc_dg_stat(SVCXPRT *); 83 static bool_t svc_dg_recv(SVCXPRT *, struct rpc_msg *); 84 static bool_t svc_dg_reply(SVCXPRT *, struct rpc_msg *); 85 static bool_t svc_dg_getargs(SVCXPRT *, xdrproc_t, caddr_t); 86 static bool_t svc_dg_freeargs(SVCXPRT *, xdrproc_t, caddr_t); 87 static void svc_dg_destroy(SVCXPRT *); 88 static bool_t svc_dg_control(SVCXPRT *, const u_int, void *); 89 static int cache_get(SVCXPRT *, struct rpc_msg *, char **, size_t *); 90 static void cache_set(SVCXPRT *, size_t); 91 92 /* 93 * Usage: 94 * xprt = svc_dg_create(sock, sendsize, recvsize); 95 * Does other connectionless specific initializations. 96 * Once *xprt is initialized, it is registered. 97 * see (svc.h, xprt_register). If recvsize or sendsize are 0 suitable 98 * system defaults are chosen. 99 * The routines returns NULL if a problem occurred. 100 */ 101 static const char svc_dg_str[] = "svc_dg_create: %s"; 102 static const char svc_dg_err1[] = "could not get transport information"; 103 static const char svc_dg_err2[] = " transport does not support data transfer"; 104 static const char __no_mem_str[] = "out of memory"; 105 106 SVCXPRT * 107 svc_dg_create(int fd, u_int sendsize, u_int recvsize) 108 { 109 SVCXPRT *xprt; 110 struct svc_dg_data *su = NULL; 111 struct __rpc_sockinfo si; 112 struct sockaddr_storage ss; 113 socklen_t slen; 114 115 if (!__rpc_fd2sockinfo(fd, &si)) { 116 warnx(svc_dg_str, svc_dg_err1); 117 return (NULL); 118 } 119 /* 120 * Find the receive and the send size 121 */ 122 sendsize = __rpc_get_t_size(si.si_af, si.si_proto, (int)sendsize); 123 recvsize = __rpc_get_t_size(si.si_af, si.si_proto, (int)recvsize); 124 if ((sendsize == 0) || (recvsize == 0)) { 125 warnx(svc_dg_str, svc_dg_err2); 126 return (NULL); 127 } 128 129 xprt = mem_alloc(sizeof (SVCXPRT)); 130 if (xprt == NULL) 131 goto outofmem; 132 memset(xprt, 0, sizeof (SVCXPRT)); 133 134 su = mem_alloc(sizeof (*su)); 135 if (su == NULL) 136 goto outofmem; 137 su->su_iosz = ((MAX(sendsize, recvsize) + 3) / 4) * 4; 138 if ((rpc_buffer(xprt) = malloc(su->su_iosz)) == NULL) 139 goto outofmem; 140 _DIAGASSERT(__type_fit(u_int, su->su_iosz)); 141 xdrmem_create(&(su->su_xdrs), rpc_buffer(xprt), (u_int)su->su_iosz, 142 XDR_DECODE); 143 su->su_cache = NULL; 144 xprt->xp_fd = fd; 145 xprt->xp_p2 = (caddr_t)(void *)su; 146 xprt->xp_verf.oa_base = su->su_verfbody; 147 svc_dg_ops(xprt); 148 xprt->xp_rtaddr.maxlen = sizeof (struct sockaddr_storage); 149 150 slen = sizeof ss; 151 if (getsockname(fd, (struct sockaddr *)(void *)&ss, &slen) < 0) 152 goto outofmem; 153 xprt->xp_ltaddr.buf = mem_alloc(sizeof (struct sockaddr_storage)); 154 xprt->xp_ltaddr.maxlen = sizeof (struct sockaddr_storage); 155 xprt->xp_ltaddr.len = slen; 156 memcpy(xprt->xp_ltaddr.buf, &ss, slen); 157 158 if (!xprt_register(xprt)) 159 goto freedata; 160 return (xprt); 161 162 outofmem: 163 (void) warnx(svc_dg_str, __no_mem_str); 164 freedata: 165 if (xprt) { 166 if (su) 167 (void) mem_free(su, sizeof (*su)); 168 (void) mem_free(xprt, sizeof (SVCXPRT)); 169 } 170 return (NULL); 171 } 172 173 /*ARGSUSED*/ 174 static enum xprt_stat 175 svc_dg_stat(SVCXPRT *xprt) 176 { 177 return (XPRT_IDLE); 178 } 179 180 static bool_t 181 svc_dg_recv(SVCXPRT *xprt, struct rpc_msg *msg) 182 { 183 struct svc_dg_data *su; 184 XDR *xdrs; 185 char *reply; 186 struct sockaddr_storage ss; 187 socklen_t alen; 188 size_t replylen; 189 ssize_t rlen; 190 191 _DIAGASSERT(xprt != NULL); 192 _DIAGASSERT(msg != NULL); 193 194 su = su_data(xprt); 195 xdrs = &(su->su_xdrs); 196 197 again: 198 alen = sizeof (struct sockaddr_storage); 199 rlen = recvfrom(xprt->xp_fd, rpc_buffer(xprt), su->su_iosz, 0, 200 (struct sockaddr *)(void *)&ss, &alen); 201 if (rlen == -1 && errno == EINTR) 202 goto again; 203 if (rlen == -1 || (rlen < (ssize_t)(4 * sizeof (u_int32_t)))) 204 return (FALSE); 205 if (xprt->xp_rtaddr.len < alen) { 206 if (xprt->xp_rtaddr.len != 0) 207 mem_free(xprt->xp_rtaddr.buf, xprt->xp_rtaddr.len); 208 xprt->xp_rtaddr.buf = mem_alloc(alen); 209 xprt->xp_rtaddr.len = alen; 210 } 211 memcpy(xprt->xp_rtaddr.buf, &ss, alen); 212 #ifdef PORTMAP 213 if (ss.ss_family == AF_INET) { 214 xprt->xp_raddr = *(struct sockaddr_in *)xprt->xp_rtaddr.buf; 215 xprt->xp_addrlen = sizeof (struct sockaddr_in); 216 } 217 #endif 218 xdrs->x_op = XDR_DECODE; 219 XDR_SETPOS(xdrs, 0); 220 if (! xdr_callmsg(xdrs, msg)) { 221 return (FALSE); 222 } 223 su->su_xid = msg->rm_xid; 224 if (su->su_cache != NULL) { 225 if (cache_get(xprt, msg, &reply, &replylen)) { 226 (void)sendto(xprt->xp_fd, reply, replylen, 0, 227 (struct sockaddr *)(void *)&ss, alen); 228 return (FALSE); 229 } 230 } 231 return (TRUE); 232 } 233 234 static bool_t 235 svc_dg_reply(SVCXPRT *xprt, struct rpc_msg *msg) 236 { 237 struct svc_dg_data *su; 238 XDR *xdrs; 239 bool_t stat = FALSE; 240 size_t slen; 241 242 _DIAGASSERT(xprt != NULL); 243 _DIAGASSERT(msg != NULL); 244 245 su = su_data(xprt); 246 xdrs = &(su->su_xdrs); 247 248 xdrs->x_op = XDR_ENCODE; 249 XDR_SETPOS(xdrs, 0); 250 msg->rm_xid = su->su_xid; 251 if (xdr_replymsg(xdrs, msg)) { 252 slen = XDR_GETPOS(xdrs); 253 if (sendto(xprt->xp_fd, rpc_buffer(xprt), slen, 0, 254 (struct sockaddr *)xprt->xp_rtaddr.buf, 255 (socklen_t)xprt->xp_rtaddr.len) == (ssize_t) slen) { 256 stat = TRUE; 257 if (su->su_cache) 258 cache_set(xprt, slen); 259 } 260 } 261 return (stat); 262 } 263 264 static bool_t 265 svc_dg_getargs(SVCXPRT *xprt, xdrproc_t xdr_args, caddr_t args_ptr) 266 { 267 return (*xdr_args)(&(su_data(xprt)->su_xdrs), args_ptr); 268 } 269 270 static bool_t 271 svc_dg_freeargs(SVCXPRT *xprt, xdrproc_t xdr_args, caddr_t args_ptr) 272 { 273 XDR *xdrs; 274 275 _DIAGASSERT(xprt != NULL); 276 277 xdrs = &(su_data(xprt)->su_xdrs); 278 xdrs->x_op = XDR_FREE; 279 return (*xdr_args)(xdrs, args_ptr); 280 } 281 282 static void 283 svc_dg_destroy(SVCXPRT *xprt) 284 { 285 struct svc_dg_data *su; 286 287 _DIAGASSERT(xprt != NULL); 288 289 su = su_data(xprt); 290 291 xprt_unregister(xprt); 292 if (xprt->xp_fd != -1) 293 (void)close(xprt->xp_fd); 294 XDR_DESTROY(&(su->su_xdrs)); 295 (void) mem_free(rpc_buffer(xprt), su->su_iosz); 296 (void) mem_free(su, sizeof (*su)); 297 if (xprt->xp_rtaddr.buf) 298 (void) mem_free(xprt->xp_rtaddr.buf, xprt->xp_rtaddr.maxlen); 299 if (xprt->xp_ltaddr.buf) 300 (void) mem_free(xprt->xp_ltaddr.buf, xprt->xp_ltaddr.maxlen); 301 if (xprt->xp_tp) 302 (void) free(xprt->xp_tp); 303 (void) mem_free(xprt, sizeof (SVCXPRT)); 304 } 305 306 static bool_t 307 /*ARGSUSED*/ 308 svc_dg_control(SVCXPRT *xprt, const u_int rq, void *in) 309 { 310 return (FALSE); 311 } 312 313 static void 314 svc_dg_ops(SVCXPRT *xprt) 315 { 316 static struct xp_ops ops; 317 static struct xp_ops2 ops2; 318 #ifdef _REENTRANT 319 extern mutex_t ops_lock; 320 #endif 321 322 _DIAGASSERT(xprt != NULL); 323 324 /* VARIABLES PROTECTED BY ops_lock: ops */ 325 326 mutex_lock(&ops_lock); 327 if (ops.xp_recv == NULL) { 328 ops.xp_recv = svc_dg_recv; 329 ops.xp_stat = svc_dg_stat; 330 ops.xp_getargs = svc_dg_getargs; 331 ops.xp_reply = svc_dg_reply; 332 ops.xp_freeargs = svc_dg_freeargs; 333 ops.xp_destroy = svc_dg_destroy; 334 ops2.xp_control = svc_dg_control; 335 } 336 xprt->xp_ops = &ops; 337 xprt->xp_ops2 = &ops2; 338 mutex_unlock(&ops_lock); 339 } 340 341 /* The CACHING COMPONENT */ 342 343 /* 344 * Could have been a separate file, but some part of it depends upon the 345 * private structure of the client handle. 346 * 347 * Fifo cache for cl server 348 * Copies pointers to reply buffers into fifo cache 349 * Buffers are sent again if retransmissions are detected. 350 */ 351 352 #define SPARSENESS 4 /* 75% sparse */ 353 354 #define ALLOC(type, size) \ 355 mem_alloc((sizeof (type) * (size))) 356 357 #define MEMZERO(addr, type, size) \ 358 (void) memset((void *) (addr), 0, sizeof (type) * (int) (size)) 359 360 #define FREE(addr, type, size) \ 361 mem_free((addr), (sizeof (type) * (size))) 362 363 /* 364 * An entry in the cache 365 */ 366 typedef struct cache_node *cache_ptr; 367 struct cache_node { 368 /* 369 * Index into cache is xid, proc, vers, prog and address 370 */ 371 u_int32_t cache_xid; 372 rpcproc_t cache_proc; 373 rpcvers_t cache_vers; 374 rpcprog_t cache_prog; 375 struct netbuf cache_addr; 376 /* 377 * The cached reply and length 378 */ 379 char *cache_reply; 380 size_t cache_replylen; 381 /* 382 * Next node on the list, if there is a collision 383 */ 384 cache_ptr cache_next; 385 }; 386 387 /* 388 * The entire cache 389 */ 390 struct cl_cache { 391 u_int uc_size; /* size of cache */ 392 cache_ptr *uc_entries; /* hash table of entries in cache */ 393 cache_ptr *uc_fifo; /* fifo list of entries in cache */ 394 u_int uc_nextvictim; /* points to next victim in fifo list */ 395 rpcprog_t uc_prog; /* saved program number */ 396 rpcvers_t uc_vers; /* saved version number */ 397 rpcproc_t uc_proc; /* saved procedure number */ 398 }; 399 400 401 /* 402 * the hashing function 403 */ 404 #define CACHE_LOC(transp, xid) \ 405 (xid % (SPARSENESS * ((struct cl_cache *) \ 406 su_data(transp)->su_cache)->uc_size)) 407 408 #ifdef _REENTRANT 409 extern mutex_t dupreq_lock; 410 #endif 411 412 /* 413 * Enable use of the cache. Returns 1 on success, 0 on failure. 414 * Note: there is no disable. 415 */ 416 static const char cache_enable_str[] = "svc_enablecache: %s %s"; 417 static const char alloc_err[] = "could not allocate cache "; 418 static const char enable_err[] = "cache already enabled"; 419 420 int 421 svc_dg_enablecache(SVCXPRT *transp, u_int size) 422 { 423 struct svc_dg_data *su; 424 struct cl_cache *uc; 425 426 _DIAGASSERT(transp != NULL); 427 428 su = su_data(transp); 429 430 mutex_lock(&dupreq_lock); 431 if (su->su_cache != NULL) { 432 (void) warnx(cache_enable_str, enable_err, " "); 433 mutex_unlock(&dupreq_lock); 434 return (0); 435 } 436 uc = ALLOC(struct cl_cache, 1); 437 if (uc == NULL) { 438 warnx(cache_enable_str, alloc_err, " "); 439 mutex_unlock(&dupreq_lock); 440 return (0); 441 } 442 uc->uc_size = size; 443 uc->uc_nextvictim = 0; 444 uc->uc_entries = ALLOC(cache_ptr, size * SPARSENESS); 445 if (uc->uc_entries == NULL) { 446 warnx(cache_enable_str, alloc_err, "data"); 447 FREE(uc, struct cl_cache, 1); 448 mutex_unlock(&dupreq_lock); 449 return (0); 450 } 451 MEMZERO(uc->uc_entries, cache_ptr, size * SPARSENESS); 452 uc->uc_fifo = ALLOC(cache_ptr, size); 453 if (uc->uc_fifo == NULL) { 454 warnx(cache_enable_str, alloc_err, "fifo"); 455 FREE(uc->uc_entries, cache_ptr, size * SPARSENESS); 456 FREE(uc, struct cl_cache, 1); 457 mutex_unlock(&dupreq_lock); 458 return (0); 459 } 460 MEMZERO(uc->uc_fifo, cache_ptr, size); 461 su->su_cache = (char *)(void *)uc; 462 mutex_unlock(&dupreq_lock); 463 return (1); 464 } 465 466 /* 467 * Set an entry in the cache. It assumes that the uc entry is set from 468 * the earlier call to cache_get() for the same procedure. This will always 469 * happen because cache_get() is calle by svc_dg_recv and cache_set() is called 470 * by svc_dg_reply(). All this hoopla because the right RPC parameters are 471 * not available at svc_dg_reply time. 472 */ 473 474 static const char cache_set_str[] = "cache_set: %s"; 475 static const char cache_set_err1[] = "victim not found"; 476 static const char cache_set_err2[] = "victim alloc failed"; 477 static const char cache_set_err3[] = "could not allocate new rpc buffer"; 478 479 static void 480 cache_set(SVCXPRT *xprt, size_t replylen) 481 { 482 cache_ptr victim; 483 cache_ptr *vicp; 484 struct svc_dg_data *su; 485 struct cl_cache *uc; 486 u_int loc; 487 char *newbuf; 488 #ifdef RPC_CACHE_DEBUG 489 struct netconfig *nconf; 490 char *uaddr; 491 #endif 492 493 _DIAGASSERT(xprt != NULL); 494 495 su = su_data(xprt); 496 uc = (struct cl_cache *) su->su_cache; 497 498 mutex_lock(&dupreq_lock); 499 /* 500 * Find space for the new entry, either by 501 * reusing an old entry, or by mallocing a new one 502 */ 503 victim = uc->uc_fifo[uc->uc_nextvictim]; 504 if (victim != NULL) { 505 loc = CACHE_LOC(xprt, victim->cache_xid); 506 for (vicp = &uc->uc_entries[loc]; 507 *vicp != NULL && *vicp != victim; 508 vicp = &(*vicp)->cache_next) 509 ; 510 if (*vicp == NULL) { 511 warnx(cache_set_str, cache_set_err1); 512 mutex_unlock(&dupreq_lock); 513 return; 514 } 515 *vicp = victim->cache_next; /* remove from cache */ 516 newbuf = victim->cache_reply; 517 } else { 518 victim = ALLOC(struct cache_node, 1); 519 if (victim == NULL) { 520 warnx(cache_set_str, cache_set_err2); 521 mutex_unlock(&dupreq_lock); 522 return; 523 } 524 newbuf = mem_alloc(su->su_iosz); 525 if (newbuf == NULL) { 526 warnx(cache_set_str, cache_set_err3); 527 FREE(victim, struct cache_node, 1); 528 mutex_unlock(&dupreq_lock); 529 return; 530 } 531 } 532 533 /* 534 * Store it away 535 */ 536 #ifdef RPC_CACHE_DEBUG 537 if (nconf = getnetconfigent(xprt->xp_netid)) { 538 uaddr = taddr2uaddr(nconf, &xprt->xp_rtaddr); 539 freenetconfigent(nconf); 540 printf( 541 "cache set for xid= %x prog=%d vers=%d proc=%d for rmtaddr=%s\n", 542 su->su_xid, uc->uc_prog, uc->uc_vers, 543 uc->uc_proc, uaddr); 544 free(uaddr); 545 } 546 #endif 547 victim->cache_replylen = replylen; 548 victim->cache_reply = rpc_buffer(xprt); 549 rpc_buffer(xprt) = newbuf; 550 _DIAGASSERT(__type_fit(u_int, su->su_iosz)); 551 xdrmem_create(&(su->su_xdrs), rpc_buffer(xprt), (u_int)su->su_iosz, 552 XDR_ENCODE); 553 victim->cache_xid = su->su_xid; 554 victim->cache_proc = uc->uc_proc; 555 victim->cache_vers = uc->uc_vers; 556 victim->cache_prog = uc->uc_prog; 557 victim->cache_addr = xprt->xp_rtaddr; 558 victim->cache_addr.buf = ALLOC(char, xprt->xp_rtaddr.len); 559 (void) memcpy(victim->cache_addr.buf, xprt->xp_rtaddr.buf, 560 (size_t)xprt->xp_rtaddr.len); 561 loc = CACHE_LOC(xprt, victim->cache_xid); 562 victim->cache_next = uc->uc_entries[loc]; 563 uc->uc_entries[loc] = victim; 564 uc->uc_fifo[uc->uc_nextvictim++] = victim; 565 uc->uc_nextvictim %= uc->uc_size; 566 mutex_unlock(&dupreq_lock); 567 } 568 569 /* 570 * Try to get an entry from the cache 571 * return 1 if found, 0 if not found and set the stage for cache_set() 572 */ 573 static int 574 cache_get(SVCXPRT *xprt, struct rpc_msg *msg, char **replyp, size_t *replylenp) 575 { 576 u_int loc; 577 cache_ptr ent; 578 struct svc_dg_data *su; 579 struct cl_cache *uc; 580 #ifdef RPC_CACHE_DEBUG 581 struct netconfig *nconf; 582 char *uaddr; 583 #endif 584 585 _DIAGASSERT(xprt != NULL); 586 _DIAGASSERT(msg != NULL); 587 _DIAGASSERT(replyp != NULL); 588 _DIAGASSERT(replylenp != NULL); 589 590 su = su_data(xprt); 591 uc = (struct cl_cache *) su->su_cache; 592 593 mutex_lock(&dupreq_lock); 594 loc = CACHE_LOC(xprt, su->su_xid); 595 for (ent = uc->uc_entries[loc]; ent != NULL; ent = ent->cache_next) { 596 if (ent->cache_xid == su->su_xid && 597 ent->cache_proc == msg->rm_call.cb_proc && 598 ent->cache_vers == msg->rm_call.cb_vers && 599 ent->cache_prog == msg->rm_call.cb_prog && 600 ent->cache_addr.len == xprt->xp_rtaddr.len && 601 (memcmp(ent->cache_addr.buf, xprt->xp_rtaddr.buf, 602 xprt->xp_rtaddr.len) == 0)) { 603 #ifdef RPC_CACHE_DEBUG 604 if (nconf = getnetconfigent(xprt->xp_netid)) { 605 uaddr = taddr2uaddr(nconf, &xprt->xp_rtaddr); 606 freenetconfigent(nconf); 607 printf( 608 "cache entry found for xid=%x prog=%d vers=%d proc=%d for rmtaddr=%s\n", 609 su->su_xid, msg->rm_call.cb_prog, 610 msg->rm_call.cb_vers, 611 msg->rm_call.cb_proc, uaddr); 612 free(uaddr); 613 } 614 #endif 615 *replyp = ent->cache_reply; 616 *replylenp = ent->cache_replylen; 617 mutex_unlock(&dupreq_lock); 618 return (1); 619 } 620 } 621 /* 622 * Failed to find entry 623 * Remember a few things so we can do a set later 624 */ 625 uc->uc_proc = msg->rm_call.cb_proc; 626 uc->uc_vers = msg->rm_call.cb_vers; 627 uc->uc_prog = msg->rm_call.cb_prog; 628 mutex_unlock(&dupreq_lock); 629 return (0); 630 } 631
Indexes created Wed Sep 24 05:09:52 GMT 2025