1 /* $NetBSD: svc_dg.c,v 1.18 2024/01/23 17:24:38 christos Exp $ */ 2 3 /* 4 * Copyright (c) 2010, Oracle America, Inc. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are 8 * met: 9 * 10 * * Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * * Redistributions in binary form must reproduce the above 13 * copyright notice, this list of conditions and the following 14 * disclaimer in the documentation and/or other materials 15 * provided with the distribution. 16 * * Neither the name of the "Oracle America, Inc." nor the names of its 17 * contributors may be used to endorse or promote products derived 18 * from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 24 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 27 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 30 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /* 35 * Copyright (c) 1986-1991 by Sun Microsystems Inc. 36 */ 37 38 /* #ident "@(#)svc_dg.c 1.17 94/04/24 SMI" */ 39 40 41 /* 42 * svc_dg.c, Server side for connectionless RPC. 43 * 44 * Does some caching in the hopes of achieving execute-at-most-once semantics. 45 */ 46 47 #include <sys/cdefs.h> 48 #if defined(LIBC_SCCS) && !defined(lint) 49 __RCSID("$NetBSD: svc_dg.c,v 1.18 2024/01/23 17:24:38 christos Exp $"); 50 #endif 51 52 #include "namespace.h" 53 #include "reentrant.h" 54 #include <sys/types.h> 55 #include <sys/socket.h> 56 #include <rpc/rpc.h> 57 #include <assert.h> 58 #include <errno.h> 59 #include <unistd.h> 60 #include <stdio.h> 61 #include <stdlib.h> 62 #include <string.h> 63 #ifdef RPC_CACHE_DEBUG 64 #include <netconfig.h> 65 #include <netdir.h> 66 #endif 67 #include <err.h> 68 69 #include "svc_fdset.h" 70 #include "rpc_internal.h" 71 #include "svc_dg.h" 72 73 #define su_data(xprt) ((struct svc_dg_data *)(xprt->xp_p2)) 74 #define rpc_buffer(xprt) ((xprt)->xp_p1) 75 76 #ifdef __weak_alias 77 __weak_alias(svc_dg_create,_svc_dg_create) 78 #endif 79 80 #ifndef MAX 81 #define MAX(a, b) (((a) > (b)) ? (a) : (b)) 82 #endif 83 84 static void svc_dg_ops(SVCXPRT *); 85 static enum xprt_stat svc_dg_stat(SVCXPRT *); 86 static bool_t svc_dg_recv(SVCXPRT *, struct rpc_msg *); 87 static bool_t svc_dg_reply(SVCXPRT *, struct rpc_msg *); 88 static bool_t svc_dg_getargs(SVCXPRT *, xdrproc_t, caddr_t); 89 static bool_t svc_dg_freeargs(SVCXPRT *, xdrproc_t, caddr_t); 90 static void svc_dg_destroy(SVCXPRT *); 91 static bool_t svc_dg_control(SVCXPRT *, const u_int, void *); 92 static int cache_get(SVCXPRT *, struct rpc_msg *, char **, size_t *); 93 static void cache_set(SVCXPRT *, size_t); 94 95 /* 96 * Usage: 97 * xprt = svc_dg_create(sock, sendsize, recvsize); 98 * Does other connectionless specific initializations. 99 * Once *xprt is initialized, it is registered. 100 * see (svc.h, xprt_register). If recvsize or sendsize are 0 suitable 101 * system defaults are chosen. 102 * The routines returns NULL if a problem occurred. 103 */ 104 static const char svc_dg_str[] = "svc_dg_create: %s"; 105 static const char svc_dg_err1[] = "could not get transport information"; 106 static const char svc_dg_err2[] = " transport does not support data transfer"; 107 static const char __no_mem_str[] = "out of memory"; 108 109 SVCXPRT * 110 svc_dg_create(int fd, u_int sendsize, u_int recvsize) 111 { 112 SVCXPRT *xprt; 113 struct svc_dg_data *su = NULL; 114 struct __rpc_sockinfo si; 115 struct sockaddr_storage ss; 116 socklen_t slen; 117 118 if (!__rpc_fd2sockinfo(fd, &si)) { 119 warnx(svc_dg_str, svc_dg_err1); 120 return (NULL); 121 } 122 /* 123 * Find the receive and the send size 124 */ 125 sendsize = __rpc_get_t_size(si.si_af, si.si_proto, (int)sendsize); 126 recvsize = __rpc_get_t_size(si.si_af, si.si_proto, (int)recvsize); 127 if ((sendsize == 0) || (recvsize == 0)) { 128 warnx(svc_dg_str, svc_dg_err2); 129 return (NULL); 130 } 131 132 xprt = mem_alloc(sizeof (SVCXPRT)); 133 if (xprt == NULL) 134 goto outofmem; 135 memset(xprt, 0, sizeof (SVCXPRT)); 136 137 su = mem_alloc(sizeof (*su)); 138 if (su == NULL) 139 goto outofmem; 140 su->su_iosz = ((MAX(sendsize, recvsize) + 3) / 4) * 4; 141 if ((rpc_buffer(xprt) = malloc(su->su_iosz)) == NULL) 142 goto outofmem; 143 _DIAGASSERT(__type_fit(u_int, su->su_iosz)); 144 xdrmem_create(&(su->su_xdrs), rpc_buffer(xprt), (u_int)su->su_iosz, 145 XDR_DECODE); 146 su->su_cache = NULL; 147 xprt->xp_fd = fd; 148 xprt->xp_p2 = (caddr_t)(void *)su; 149 xprt->xp_verf.oa_base = su->su_verfbody; 150 svc_dg_ops(xprt); 151 xprt->xp_rtaddr.maxlen = sizeof (struct sockaddr_storage); 152 153 slen = sizeof ss; 154 if (getsockname(fd, (struct sockaddr *)(void *)&ss, &slen) < 0) 155 goto freedata; 156 xprt->xp_ltaddr.buf = mem_alloc(sizeof (struct sockaddr_storage)); 157 xprt->xp_ltaddr.maxlen = sizeof (struct sockaddr_storage); 158 xprt->xp_ltaddr.len = slen; 159 memcpy(xprt->xp_ltaddr.buf, &ss, slen); 160 161 if (!xprt_register(xprt)) 162 goto freedata; 163 return (xprt); 164 165 outofmem: 166 (void) warnx(svc_dg_str, __no_mem_str); 167 freedata: 168 if (xprt) { 169 if (su) 170 (void) mem_free(su, sizeof (*su)); 171 (void) mem_free(xprt, sizeof (SVCXPRT)); 172 } 173 return (NULL); 174 } 175 176 /*ARGSUSED*/ 177 static enum xprt_stat 178 svc_dg_stat(SVCXPRT *xprt) 179 { 180 return (XPRT_IDLE); 181 } 182 183 static bool_t 184 svc_dg_recv(SVCXPRT *xprt, struct rpc_msg *msg) 185 { 186 struct svc_dg_data *su; 187 XDR *xdrs; 188 char *reply; 189 struct sockaddr_storage ss; 190 socklen_t alen; 191 size_t replylen; 192 ssize_t rlen; 193 194 _DIAGASSERT(xprt != NULL); 195 _DIAGASSERT(msg != NULL); 196 197 su = su_data(xprt); 198 xdrs = &(su->su_xdrs); 199 200 again: 201 alen = sizeof (struct sockaddr_storage); 202 rlen = recvfrom(xprt->xp_fd, rpc_buffer(xprt), su->su_iosz, 0, 203 (struct sockaddr *)(void *)&ss, &alen); 204 if (rlen == -1 && errno == EINTR) 205 goto again; 206 if (rlen == -1 || (rlen < (ssize_t)(4 * sizeof (u_int32_t)))) 207 return (FALSE); 208 if (xprt->xp_rtaddr.len < alen) { 209 if (xprt->xp_rtaddr.len != 0) 210 mem_free(xprt->xp_rtaddr.buf, xprt->xp_rtaddr.len); 211 xprt->xp_rtaddr.buf = mem_alloc(alen); 212 xprt->xp_rtaddr.len = alen; 213 } 214 memcpy(xprt->xp_rtaddr.buf, &ss, alen); 215 #ifdef PORTMAP 216 if (ss.ss_family == AF_INET) { 217 xprt->xp_raddr = *(struct sockaddr_in *)xprt->xp_rtaddr.buf; 218 xprt->xp_addrlen = sizeof (struct sockaddr_in); 219 } 220 #endif 221 xdrs->x_op = XDR_DECODE; 222 XDR_SETPOS(xdrs, 0); 223 if (! xdr_callmsg(xdrs, msg)) { 224 return (FALSE); 225 } 226 su->su_xid = msg->rm_xid; 227 if (su->su_cache != NULL) { 228 if (cache_get(xprt, msg, &reply, &replylen)) { 229 (void)sendto(xprt->xp_fd, reply, replylen, 0, 230 (struct sockaddr *)(void *)&ss, alen); 231 return (FALSE); 232 } 233 } 234 return (TRUE); 235 } 236 237 static bool_t 238 svc_dg_reply(SVCXPRT *xprt, struct rpc_msg *msg) 239 { 240 struct svc_dg_data *su; 241 XDR *xdrs; 242 bool_t stat = FALSE; 243 size_t slen; 244 245 _DIAGASSERT(xprt != NULL); 246 _DIAGASSERT(msg != NULL); 247 248 su = su_data(xprt); 249 xdrs = &(su->su_xdrs); 250 251 xdrs->x_op = XDR_ENCODE; 252 XDR_SETPOS(xdrs, 0); 253 msg->rm_xid = su->su_xid; 254 if (xdr_replymsg(xdrs, msg)) { 255 slen = XDR_GETPOS(xdrs); 256 if (sendto(xprt->xp_fd, rpc_buffer(xprt), slen, 0, 257 (struct sockaddr *)xprt->xp_rtaddr.buf, 258 (socklen_t)xprt->xp_rtaddr.len) == (ssize_t) slen) { 259 stat = TRUE; 260 if (su->su_cache) 261 cache_set(xprt, slen); 262 } 263 } 264 return (stat); 265 } 266 267 static bool_t 268 svc_dg_getargs(SVCXPRT *xprt, xdrproc_t xdr_args, caddr_t args_ptr) 269 { 270 return (*xdr_args)(&(su_data(xprt)->su_xdrs), args_ptr); 271 } 272 273 static bool_t 274 svc_dg_freeargs(SVCXPRT *xprt, xdrproc_t xdr_args, caddr_t args_ptr) 275 { 276 XDR *xdrs; 277 278 _DIAGASSERT(xprt != NULL); 279 280 xdrs = &(su_data(xprt)->su_xdrs); 281 xdrs->x_op = XDR_FREE; 282 return (*xdr_args)(xdrs, args_ptr); 283 } 284 285 static void 286 svc_dg_destroy(SVCXPRT *xprt) 287 { 288 struct svc_dg_data *su; 289 290 _DIAGASSERT(xprt != NULL); 291 292 su = su_data(xprt); 293 294 xprt_unregister(xprt); 295 if (xprt->xp_fd != -1) 296 (void)close(xprt->xp_fd); 297 XDR_DESTROY(&(su->su_xdrs)); 298 (void) mem_free(rpc_buffer(xprt), su->su_iosz); 299 (void) mem_free(su, sizeof (*su)); 300 if (xprt->xp_rtaddr.buf) 301 (void) mem_free(xprt->xp_rtaddr.buf, xprt->xp_rtaddr.maxlen); 302 if (xprt->xp_ltaddr.buf) 303 (void) mem_free(xprt->xp_ltaddr.buf, xprt->xp_ltaddr.maxlen); 304 if (xprt->xp_tp) 305 (void) free(xprt->xp_tp); 306 (void) mem_free(xprt, sizeof (SVCXPRT)); 307 } 308 309 static bool_t 310 /*ARGSUSED*/ 311 svc_dg_control(SVCXPRT *xprt, const u_int rq, void *in) 312 { 313 return (FALSE); 314 } 315 316 static void 317 svc_dg_ops(SVCXPRT *xprt) 318 { 319 static struct xp_ops ops; 320 static struct xp_ops2 ops2; 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 /* 409 * Enable use of the cache. Returns 1 on success, 0 on failure. 410 * Note: there is no disable. 411 */ 412 static const char cache_enable_str[] = "svc_enablecache: %s %s"; 413 static const char alloc_err[] = "could not allocate cache "; 414 static const char enable_err[] = "cache already enabled"; 415 416 int 417 svc_dg_enablecache(SVCXPRT *transp, u_int size) 418 { 419 struct svc_dg_data *su; 420 struct cl_cache *uc; 421 422 _DIAGASSERT(transp != NULL); 423 424 su = su_data(transp); 425 426 mutex_lock(&dupreq_lock); 427 if (su->su_cache != NULL) { 428 (void) warnx(cache_enable_str, enable_err, " "); 429 mutex_unlock(&dupreq_lock); 430 return (0); 431 } 432 uc = ALLOC(struct cl_cache, 1); 433 if (uc == NULL) { 434 warnx(cache_enable_str, alloc_err, " "); 435 mutex_unlock(&dupreq_lock); 436 return (0); 437 } 438 uc->uc_size = size; 439 uc->uc_nextvictim = 0; 440 uc->uc_entries = ALLOC(cache_ptr, size * SPARSENESS); 441 if (uc->uc_entries == NULL) { 442 warnx(cache_enable_str, alloc_err, "data"); 443 FREE(uc, struct cl_cache, 1); 444 mutex_unlock(&dupreq_lock); 445 return (0); 446 } 447 MEMZERO(uc->uc_entries, cache_ptr, size * SPARSENESS); 448 uc->uc_fifo = ALLOC(cache_ptr, size); 449 if (uc->uc_fifo == NULL) { 450 warnx(cache_enable_str, alloc_err, "fifo"); 451 FREE(uc->uc_entries, cache_ptr, size * SPARSENESS); 452 FREE(uc, struct cl_cache, 1); 453 mutex_unlock(&dupreq_lock); 454 return (0); 455 } 456 MEMZERO(uc->uc_fifo, cache_ptr, size); 457 su->su_cache = (char *)(void *)uc; 458 mutex_unlock(&dupreq_lock); 459 return (1); 460 } 461 462 /* 463 * Set an entry in the cache. It assumes that the uc entry is set from 464 * the earlier call to cache_get() for the same procedure. This will always 465 * happen because cache_get() is calle by svc_dg_recv and cache_set() is called 466 * by svc_dg_reply(). All this hoopla because the right RPC parameters are 467 * not available at svc_dg_reply time. 468 */ 469 470 static const char cache_set_str[] = "cache_set: %s"; 471 static const char cache_set_err1[] = "victim not found"; 472 static const char cache_set_err2[] = "victim alloc failed"; 473 static const char cache_set_err3[] = "could not allocate new rpc buffer"; 474 475 static void 476 cache_set(SVCXPRT *xprt, size_t replylen) 477 { 478 cache_ptr victim; 479 cache_ptr *vicp; 480 struct svc_dg_data *su; 481 struct cl_cache *uc; 482 u_int loc; 483 char *newbuf; 484 #ifdef RPC_CACHE_DEBUG 485 struct netconfig *nconf; 486 char *uaddr; 487 #endif 488 489 _DIAGASSERT(xprt != NULL); 490 491 su = su_data(xprt); 492 uc = (struct cl_cache *) su->su_cache; 493 494 mutex_lock(&dupreq_lock); 495 /* 496 * Find space for the new entry, either by 497 * reusing an old entry, or by mallocing a new one 498 */ 499 victim = uc->uc_fifo[uc->uc_nextvictim]; 500 if (victim != NULL) { 501 loc = CACHE_LOC(xprt, victim->cache_xid); 502 for (vicp = &uc->uc_entries[loc]; 503 *vicp != NULL && *vicp != victim; 504 vicp = &(*vicp)->cache_next) 505 ; 506 if (*vicp == NULL) { 507 warnx(cache_set_str, cache_set_err1); 508 mutex_unlock(&dupreq_lock); 509 return; 510 } 511 *vicp = victim->cache_next; /* remove from cache */ 512 newbuf = victim->cache_reply; 513 } else { 514 victim = ALLOC(struct cache_node, 1); 515 if (victim == NULL) { 516 warnx(cache_set_str, cache_set_err2); 517 mutex_unlock(&dupreq_lock); 518 return; 519 } 520 newbuf = mem_alloc(su->su_iosz); 521 if (newbuf == NULL) { 522 warnx(cache_set_str, cache_set_err3); 523 FREE(victim, struct cache_node, 1); 524 mutex_unlock(&dupreq_lock); 525 return; 526 } 527 } 528 529 /* 530 * Store it away 531 */ 532 #ifdef RPC_CACHE_DEBUG 533 if (nconf = getnetconfigent(xprt->xp_netid)) { 534 uaddr = taddr2uaddr(nconf, &xprt->xp_rtaddr); 535 freenetconfigent(nconf); 536 printf( 537 "cache set for xid= %x prog=%d vers=%d proc=%d for rmtaddr=%s\n", 538 su->su_xid, uc->uc_prog, uc->uc_vers, 539 uc->uc_proc, uaddr); 540 free(uaddr); 541 } 542 #endif 543 victim->cache_replylen = replylen; 544 victim->cache_reply = rpc_buffer(xprt); 545 rpc_buffer(xprt) = newbuf; 546 _DIAGASSERT(__type_fit(u_int, su->su_iosz)); 547 xdrmem_create(&(su->su_xdrs), rpc_buffer(xprt), (u_int)su->su_iosz, 548 XDR_ENCODE); 549 victim->cache_xid = su->su_xid; 550 victim->cache_proc = uc->uc_proc; 551 victim->cache_vers = uc->uc_vers; 552 victim->cache_prog = uc->uc_prog; 553 victim->cache_addr = xprt->xp_rtaddr; 554 victim->cache_addr.buf = ALLOC(char, xprt->xp_rtaddr.len); 555 (void) memcpy(victim->cache_addr.buf, xprt->xp_rtaddr.buf, 556 (size_t)xprt->xp_rtaddr.len); 557 loc = CACHE_LOC(xprt, victim->cache_xid); 558 victim->cache_next = uc->uc_entries[loc]; 559 uc->uc_entries[loc] = victim; 560 uc->uc_fifo[uc->uc_nextvictim++] = victim; 561 uc->uc_nextvictim %= uc->uc_size; 562 mutex_unlock(&dupreq_lock); 563 } 564 565 /* 566 * Try to get an entry from the cache 567 * return 1 if found, 0 if not found and set the stage for cache_set() 568 */ 569 static int 570 cache_get(SVCXPRT *xprt, struct rpc_msg *msg, char **replyp, size_t *replylenp) 571 { 572 u_int loc; 573 cache_ptr ent; 574 struct svc_dg_data *su; 575 struct cl_cache *uc; 576 #ifdef RPC_CACHE_DEBUG 577 struct netconfig *nconf; 578 char *uaddr; 579 #endif 580 581 _DIAGASSERT(xprt != NULL); 582 _DIAGASSERT(msg != NULL); 583 _DIAGASSERT(replyp != NULL); 584 _DIAGASSERT(replylenp != NULL); 585 586 su = su_data(xprt); 587 uc = (struct cl_cache *) su->su_cache; 588 589 mutex_lock(&dupreq_lock); 590 loc = CACHE_LOC(xprt, su->su_xid); 591 for (ent = uc->uc_entries[loc]; ent != NULL; ent = ent->cache_next) { 592 if (ent->cache_xid == su->su_xid && 593 ent->cache_proc == msg->rm_call.cb_proc && 594 ent->cache_vers == msg->rm_call.cb_vers && 595 ent->cache_prog == msg->rm_call.cb_prog && 596 ent->cache_addr.len == xprt->xp_rtaddr.len && 597 (memcmp(ent->cache_addr.buf, xprt->xp_rtaddr.buf, 598 xprt->xp_rtaddr.len) == 0)) { 599 #ifdef RPC_CACHE_DEBUG 600 if (nconf = getnetconfigent(xprt->xp_netid)) { 601 uaddr = taddr2uaddr(nconf, &xprt->xp_rtaddr); 602 freenetconfigent(nconf); 603 printf( 604 "cache entry found for xid=%x prog=%d vers=%d proc=%d for rmtaddr=%s\n", 605 su->su_xid, msg->rm_call.cb_prog, 606 msg->rm_call.cb_vers, 607 msg->rm_call.cb_proc, uaddr); 608 free(uaddr); 609 } 610 #endif 611 *replyp = ent->cache_reply; 612 *replylenp = ent->cache_replylen; 613 mutex_unlock(&dupreq_lock); 614 return (1); 615 } 616 } 617 /* 618 * Failed to find entry 619 * Remember a few things so we can do a set later 620 */ 621 uc->uc_proc = msg->rm_call.cb_proc; 622 uc->uc_vers = msg->rm_call.cb_vers; 623 uc->uc_prog = msg->rm_call.cb_prog; 624 mutex_unlock(&dupreq_lock); 625 return (0); 626 } 627
Indexes created Sat Sep 20 22:09:52 GMT 2025