clnt_rc.c revision 184588
1177633Sdfr/*- 2177633Sdfr * Copyright (c) 2008 Isilon Inc http://www.isilon.com/ 3177633Sdfr * Authors: Doug Rabson <dfr@rabson.org> 4177633Sdfr * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org> 5177633Sdfr * 6177633Sdfr * Redistribution and use in source and binary forms, with or without 7177633Sdfr * modification, are permitted provided that the following conditions 8177633Sdfr * are met: 9177633Sdfr * 1. Redistributions of source code must retain the above copyright 10177633Sdfr * notice, this list of conditions and the following disclaimer. 11177633Sdfr * 2. Redistributions in binary form must reproduce the above copyright 12177633Sdfr * notice, this list of conditions and the following disclaimer in the 13177633Sdfr * documentation and/or other materials provided with the distribution. 14177633Sdfr * 15177633Sdfr * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16177633Sdfr * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17177633Sdfr * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18177633Sdfr * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19177633Sdfr * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20177633Sdfr * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21177633Sdfr * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22177633Sdfr * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23177633Sdfr * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24177633Sdfr * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25177633Sdfr * SUCH DAMAGE. 26177633Sdfr */ 27177633Sdfr 28177633Sdfr#include <sys/cdefs.h> 29177633Sdfr__FBSDID("$FreeBSD: head/sys/rpc/clnt_rc.c 184588 2008-11-03 10:38:00Z dfr $"); 30177633Sdfr 31177633Sdfr#include <sys/param.h> 32177633Sdfr#include <sys/systm.h> 33184588Sdfr#include <sys/kernel.h> 34180025Sdfr#include <sys/limits.h> 35177633Sdfr#include <sys/lock.h> 36177633Sdfr#include <sys/malloc.h> 37177633Sdfr#include <sys/mbuf.h> 38177633Sdfr#include <sys/mutex.h> 39177633Sdfr#include <sys/pcpu.h> 40177633Sdfr#include <sys/proc.h> 41177633Sdfr#include <sys/socket.h> 42177633Sdfr#include <sys/socketvar.h> 43177633Sdfr#include <sys/time.h> 44177633Sdfr#include <sys/uio.h> 45177633Sdfr 46177633Sdfr#include <rpc/rpc.h> 47177685Sdfr#include <rpc/rpc_com.h> 48177633Sdfr 49180025Sdfrstatic enum clnt_stat clnt_reconnect_call(CLIENT *, struct rpc_callextra *, 50184588Sdfr rpcproc_t, struct mbuf *, struct mbuf **, struct timeval); 51177633Sdfrstatic void clnt_reconnect_geterr(CLIENT *, struct rpc_err *); 52177633Sdfrstatic bool_t clnt_reconnect_freeres(CLIENT *, xdrproc_t, void *); 53177633Sdfrstatic void clnt_reconnect_abort(CLIENT *); 54177633Sdfrstatic bool_t clnt_reconnect_control(CLIENT *, u_int, void *); 55184588Sdfrstatic void clnt_reconnect_close(CLIENT *); 56177633Sdfrstatic void clnt_reconnect_destroy(CLIENT *); 57177633Sdfr 58177633Sdfrstatic struct clnt_ops clnt_reconnect_ops = { 59177633Sdfr .cl_call = clnt_reconnect_call, 60177633Sdfr .cl_abort = clnt_reconnect_abort, 61177633Sdfr .cl_geterr = clnt_reconnect_geterr, 62177633Sdfr .cl_freeres = clnt_reconnect_freeres, 63184588Sdfr .cl_close = clnt_reconnect_close, 64177633Sdfr .cl_destroy = clnt_reconnect_destroy, 65177633Sdfr .cl_control = clnt_reconnect_control 66177633Sdfr}; 67177633Sdfr 68184588Sdfrstatic int fake_wchan; 69184588Sdfr 70177633Sdfrstruct rc_data { 71180025Sdfr struct mtx rc_lock; 72177633Sdfr struct sockaddr_storage rc_addr; /* server address */ 73177633Sdfr struct netconfig* rc_nconf; /* network type */ 74177633Sdfr rpcprog_t rc_prog; /* program number */ 75177633Sdfr rpcvers_t rc_vers; /* version number */ 76177633Sdfr size_t rc_sendsz; 77177633Sdfr size_t rc_recvsz; 78177633Sdfr struct timeval rc_timeout; 79177633Sdfr struct timeval rc_retry; 80180025Sdfr int rc_retries; 81184588Sdfr int rc_privport; 82184588Sdfr char *rc_waitchan; 83177633Sdfr int rc_intr; 84180025Sdfr int rc_connecting; 85184588Sdfr int rc_closed; 86184588Sdfr struct ucred *rc_ucred; 87177633Sdfr CLIENT* rc_client; /* underlying RPC client */ 88184588Sdfr struct rpc_err rc_err; 89177633Sdfr}; 90177633Sdfr 91177633SdfrCLIENT * 92177633Sdfrclnt_reconnect_create( 93177633Sdfr struct netconfig *nconf, /* network type */ 94177633Sdfr struct sockaddr *svcaddr, /* servers address */ 95177633Sdfr rpcprog_t program, /* program number */ 96177633Sdfr rpcvers_t version, /* version number */ 97177633Sdfr size_t sendsz, /* buffer recv size */ 98177633Sdfr size_t recvsz) /* buffer send size */ 99177633Sdfr{ 100177633Sdfr CLIENT *cl = NULL; /* client handle */ 101177633Sdfr struct rc_data *rc = NULL; /* private data */ 102177633Sdfr 103177633Sdfr if (svcaddr == NULL) { 104177633Sdfr rpc_createerr.cf_stat = RPC_UNKNOWNADDR; 105177633Sdfr return (NULL); 106177633Sdfr } 107177633Sdfr 108177633Sdfr cl = mem_alloc(sizeof (CLIENT)); 109177633Sdfr rc = mem_alloc(sizeof (*rc)); 110180025Sdfr mtx_init(&rc->rc_lock, "rc->rc_lock", NULL, MTX_DEF); 111177633Sdfr (void) memcpy(&rc->rc_addr, svcaddr, (size_t)svcaddr->sa_len); 112177633Sdfr rc->rc_nconf = nconf; 113177633Sdfr rc->rc_prog = program; 114177633Sdfr rc->rc_vers = version; 115177633Sdfr rc->rc_sendsz = sendsz; 116177633Sdfr rc->rc_recvsz = recvsz; 117177633Sdfr rc->rc_timeout.tv_sec = -1; 118177633Sdfr rc->rc_timeout.tv_usec = -1; 119180025Sdfr rc->rc_retry.tv_sec = 3; 120177633Sdfr rc->rc_retry.tv_usec = 0; 121180025Sdfr rc->rc_retries = INT_MAX; 122184588Sdfr rc->rc_privport = FALSE; 123177633Sdfr rc->rc_waitchan = "rpcrecv"; 124177633Sdfr rc->rc_intr = 0; 125180025Sdfr rc->rc_connecting = FALSE; 126184588Sdfr rc->rc_closed = FALSE; 127184588Sdfr rc->rc_ucred = crdup(curthread->td_ucred); 128177633Sdfr rc->rc_client = NULL; 129177633Sdfr 130180025Sdfr cl->cl_refs = 1; 131177633Sdfr cl->cl_ops = &clnt_reconnect_ops; 132177633Sdfr cl->cl_private = (caddr_t)(void *)rc; 133177633Sdfr cl->cl_auth = authnone_create(); 134177633Sdfr cl->cl_tp = NULL; 135177633Sdfr cl->cl_netid = NULL; 136177633Sdfr return (cl); 137177633Sdfr} 138177633Sdfr 139177633Sdfrstatic enum clnt_stat 140177633Sdfrclnt_reconnect_connect(CLIENT *cl) 141177633Sdfr{ 142184588Sdfr struct thread *td = curthread; 143177633Sdfr struct rc_data *rc = (struct rc_data *)cl->cl_private; 144177633Sdfr struct socket *so; 145180025Sdfr enum clnt_stat stat; 146180025Sdfr int error; 147177633Sdfr int one = 1; 148184588Sdfr struct ucred *oldcred; 149177633Sdfr 150180025Sdfr mtx_lock(&rc->rc_lock); 151180025Sdfragain: 152184588Sdfr if (rc->rc_closed) { 153184588Sdfr mtx_unlock(&rc->rc_lock); 154184588Sdfr return (RPC_CANTSEND); 155184588Sdfr } 156180025Sdfr if (rc->rc_connecting) { 157184588Sdfr while (!rc->rc_closed && !rc->rc_client) { 158180025Sdfr error = msleep(rc, &rc->rc_lock, 159180025Sdfr rc->rc_intr ? PCATCH : 0, "rpcrecon", 0); 160180025Sdfr if (error) { 161180025Sdfr mtx_unlock(&rc->rc_lock); 162180025Sdfr return (RPC_INTR); 163180025Sdfr } 164180025Sdfr } 165180025Sdfr /* 166180025Sdfr * If the other guy failed to connect, we might as 167180025Sdfr * well have another go. 168180025Sdfr */ 169180025Sdfr if (!rc->rc_client && !rc->rc_connecting) 170180025Sdfr goto again; 171180025Sdfr mtx_unlock(&rc->rc_lock); 172180025Sdfr return (RPC_SUCCESS); 173180025Sdfr } else { 174180025Sdfr rc->rc_connecting = TRUE; 175180025Sdfr } 176180025Sdfr mtx_unlock(&rc->rc_lock); 177180025Sdfr 178177633Sdfr so = __rpc_nconf2socket(rc->rc_nconf); 179177633Sdfr if (!so) { 180180025Sdfr stat = rpc_createerr.cf_stat = RPC_TLIERROR; 181177633Sdfr rpc_createerr.cf_error.re_errno = 0; 182180025Sdfr goto out; 183177633Sdfr } 184184588Sdfr if (rc->rc_privport) 185184588Sdfr bindresvport(so, NULL); 186177633Sdfr 187184588Sdfr oldcred = td->td_ucred; 188184588Sdfr td->td_ucred = rc->rc_ucred; 189177633Sdfr if (rc->rc_nconf->nc_semantics == NC_TPI_CLTS) 190177633Sdfr rc->rc_client = clnt_dg_create(so, 191177633Sdfr (struct sockaddr *) &rc->rc_addr, rc->rc_prog, rc->rc_vers, 192177633Sdfr rc->rc_sendsz, rc->rc_recvsz); 193177633Sdfr else 194177633Sdfr rc->rc_client = clnt_vc_create(so, 195177633Sdfr (struct sockaddr *) &rc->rc_addr, rc->rc_prog, rc->rc_vers, 196177633Sdfr rc->rc_sendsz, rc->rc_recvsz); 197184588Sdfr td->td_ucred = oldcred; 198177633Sdfr 199180025Sdfr if (!rc->rc_client) { 200184588Sdfr soclose(so); 201184588Sdfr rc->rc_err = rpc_createerr.cf_error; 202180025Sdfr stat = rpc_createerr.cf_stat; 203180025Sdfr goto out; 204180025Sdfr } 205178112Sdfr 206177633Sdfr CLNT_CONTROL(rc->rc_client, CLSET_FD_CLOSE, 0); 207177633Sdfr CLNT_CONTROL(rc->rc_client, CLSET_CONNECT, &one); 208177633Sdfr CLNT_CONTROL(rc->rc_client, CLSET_TIMEOUT, &rc->rc_timeout); 209177633Sdfr CLNT_CONTROL(rc->rc_client, CLSET_RETRY_TIMEOUT, &rc->rc_retry); 210184588Sdfr CLNT_CONTROL(rc->rc_client, CLSET_WAITCHAN, rc->rc_waitchan); 211177633Sdfr CLNT_CONTROL(rc->rc_client, CLSET_INTERRUPTIBLE, &rc->rc_intr); 212180025Sdfr stat = RPC_SUCCESS; 213177633Sdfr 214180025Sdfrout: 215180025Sdfr mtx_lock(&rc->rc_lock); 216184588Sdfr if (rc->rc_closed) { 217184588Sdfr if (rc->rc_client) { 218184588Sdfr CLNT_CLOSE(rc->rc_client); 219184588Sdfr CLNT_RELEASE(rc->rc_client); 220184588Sdfr rc->rc_client = NULL; 221184588Sdfr } 222184588Sdfr } 223180025Sdfr rc->rc_connecting = FALSE; 224180025Sdfr wakeup(rc); 225180025Sdfr mtx_unlock(&rc->rc_lock); 226180025Sdfr 227180025Sdfr return (stat); 228177633Sdfr} 229177633Sdfr 230177633Sdfrstatic enum clnt_stat 231177633Sdfrclnt_reconnect_call( 232180025Sdfr CLIENT *cl, /* client handle */ 233180025Sdfr struct rpc_callextra *ext, /* call metadata */ 234177633Sdfr rpcproc_t proc, /* procedure number */ 235184588Sdfr struct mbuf *args, /* pointer to args */ 236184588Sdfr struct mbuf **resultsp, /* pointer to results */ 237184588Sdfr struct timeval utimeout) 238177633Sdfr{ 239177633Sdfr struct rc_data *rc = (struct rc_data *)cl->cl_private; 240180025Sdfr CLIENT *client; 241177633Sdfr enum clnt_stat stat; 242180025Sdfr int tries; 243177633Sdfr 244180025Sdfr tries = 0; 245177633Sdfr do { 246184588Sdfr if (rc->rc_closed) { 247184588Sdfr return (RPC_CANTSEND); 248184588Sdfr } 249184588Sdfr 250178112Sdfr if (!rc->rc_client) { 251178112Sdfr stat = clnt_reconnect_connect(cl); 252184588Sdfr if (stat == RPC_SYSTEMERROR) { 253184588Sdfr (void) tsleep(&fake_wchan, 0, 254184588Sdfr "rpccon", hz); 255184588Sdfr tries++; 256184588Sdfr if (tries >= rc->rc_retries) 257184588Sdfr return (stat); 258184588Sdfr continue; 259184588Sdfr } 260178112Sdfr if (stat != RPC_SUCCESS) 261178112Sdfr return (stat); 262178112Sdfr } 263177633Sdfr 264180025Sdfr mtx_lock(&rc->rc_lock); 265184588Sdfr if (!rc->rc_client) { 266184588Sdfr mtx_unlock(&rc->rc_lock); 267184588Sdfr stat = RPC_FAILED; 268184588Sdfr continue; 269184588Sdfr } 270180025Sdfr CLNT_ACQUIRE(rc->rc_client); 271180025Sdfr client = rc->rc_client; 272180025Sdfr mtx_unlock(&rc->rc_lock); 273184588Sdfr stat = CLNT_CALL_MBUF(client, ext, proc, args, 274184588Sdfr resultsp, utimeout); 275177633Sdfr 276184588Sdfr if (stat != RPC_SUCCESS) { 277184588Sdfr if (!ext) 278184588Sdfr CLNT_GETERR(client, &rc->rc_err); 279184588Sdfr } 280184588Sdfr 281180025Sdfr CLNT_RELEASE(client); 282177633Sdfr if (stat == RPC_TIMEDOUT) { 283177633Sdfr /* 284177633Sdfr * Check for async send misfeature for NLM 285177633Sdfr * protocol. 286177633Sdfr */ 287177633Sdfr if ((rc->rc_timeout.tv_sec == 0 288177633Sdfr && rc->rc_timeout.tv_usec == 0) 289177633Sdfr || (rc->rc_timeout.tv_sec == -1 290177633Sdfr && utimeout.tv_sec == 0 291180025Sdfr && utimeout.tv_usec == 0)) { 292177633Sdfr break; 293180025Sdfr } 294177633Sdfr } 295177633Sdfr 296184588Sdfr if (stat == RPC_TIMEDOUT || stat == RPC_CANTSEND 297184588Sdfr || stat == RPC_CANTRECV) { 298180025Sdfr tries++; 299180025Sdfr if (tries >= rc->rc_retries) 300180025Sdfr break; 301180025Sdfr 302180025Sdfr if (ext && ext->rc_feedback) 303180025Sdfr ext->rc_feedback(FEEDBACK_RECONNECT, proc, 304180025Sdfr ext->rc_feedback_arg); 305180025Sdfr 306180025Sdfr mtx_lock(&rc->rc_lock); 307180025Sdfr /* 308180025Sdfr * Make sure that someone else hasn't already 309180025Sdfr * reconnected. 310180025Sdfr */ 311180025Sdfr if (rc->rc_client == client) { 312180025Sdfr CLNT_RELEASE(rc->rc_client); 313180025Sdfr rc->rc_client = NULL; 314180025Sdfr } 315180025Sdfr mtx_unlock(&rc->rc_lock); 316184588Sdfr } else { 317184588Sdfr break; 318177633Sdfr } 319177633Sdfr } while (stat != RPC_SUCCESS); 320177633Sdfr 321184588Sdfr KASSERT(stat != RPC_SUCCESS || *resultsp, 322184588Sdfr ("RPC_SUCCESS without reply")); 323184588Sdfr 324177633Sdfr return (stat); 325177633Sdfr} 326177633Sdfr 327177633Sdfrstatic void 328177633Sdfrclnt_reconnect_geterr(CLIENT *cl, struct rpc_err *errp) 329177633Sdfr{ 330177633Sdfr struct rc_data *rc = (struct rc_data *)cl->cl_private; 331177633Sdfr 332184588Sdfr *errp = rc->rc_err; 333177633Sdfr} 334177633Sdfr 335177633Sdfrstatic bool_t 336177633Sdfrclnt_reconnect_freeres(CLIENT *cl, xdrproc_t xdr_res, void *res_ptr) 337177633Sdfr{ 338177633Sdfr struct rc_data *rc = (struct rc_data *)cl->cl_private; 339177633Sdfr 340177633Sdfr return (CLNT_FREERES(rc->rc_client, xdr_res, res_ptr)); 341177633Sdfr} 342177633Sdfr 343177633Sdfr/*ARGSUSED*/ 344177633Sdfrstatic void 345177633Sdfrclnt_reconnect_abort(CLIENT *h) 346177633Sdfr{ 347177633Sdfr} 348177633Sdfr 349177633Sdfrstatic bool_t 350177633Sdfrclnt_reconnect_control(CLIENT *cl, u_int request, void *info) 351177633Sdfr{ 352177633Sdfr struct rc_data *rc = (struct rc_data *)cl->cl_private; 353177633Sdfr 354177633Sdfr if (info == NULL) { 355177633Sdfr return (FALSE); 356177633Sdfr } 357177633Sdfr switch (request) { 358177633Sdfr case CLSET_TIMEOUT: 359177633Sdfr rc->rc_timeout = *(struct timeval *)info; 360177633Sdfr if (rc->rc_client) 361177633Sdfr CLNT_CONTROL(rc->rc_client, request, info); 362177633Sdfr break; 363177633Sdfr 364177633Sdfr case CLGET_TIMEOUT: 365177633Sdfr *(struct timeval *)info = rc->rc_timeout; 366177633Sdfr break; 367177633Sdfr 368177633Sdfr case CLSET_RETRY_TIMEOUT: 369177633Sdfr rc->rc_retry = *(struct timeval *)info; 370177633Sdfr if (rc->rc_client) 371177633Sdfr CLNT_CONTROL(rc->rc_client, request, info); 372177633Sdfr break; 373177633Sdfr 374177633Sdfr case CLGET_RETRY_TIMEOUT: 375177633Sdfr *(struct timeval *)info = rc->rc_retry; 376177633Sdfr break; 377177633Sdfr 378177633Sdfr case CLGET_VERS: 379177633Sdfr *(uint32_t *)info = rc->rc_vers; 380177633Sdfr break; 381177633Sdfr 382177633Sdfr case CLSET_VERS: 383177633Sdfr rc->rc_vers = *(uint32_t *) info; 384177633Sdfr if (rc->rc_client) 385177633Sdfr CLNT_CONTROL(rc->rc_client, CLSET_VERS, info); 386177633Sdfr break; 387177633Sdfr 388177633Sdfr case CLGET_PROG: 389177633Sdfr *(uint32_t *)info = rc->rc_prog; 390177633Sdfr break; 391177633Sdfr 392177633Sdfr case CLSET_PROG: 393177633Sdfr rc->rc_prog = *(uint32_t *) info; 394177633Sdfr if (rc->rc_client) 395177633Sdfr CLNT_CONTROL(rc->rc_client, request, info); 396177633Sdfr break; 397177633Sdfr 398177633Sdfr case CLSET_WAITCHAN: 399184588Sdfr rc->rc_waitchan = (char *)info; 400177633Sdfr if (rc->rc_client) 401177633Sdfr CLNT_CONTROL(rc->rc_client, request, info); 402177633Sdfr break; 403177633Sdfr 404177633Sdfr case CLGET_WAITCHAN: 405177633Sdfr *(const char **) info = rc->rc_waitchan; 406177633Sdfr break; 407177633Sdfr 408177633Sdfr case CLSET_INTERRUPTIBLE: 409177633Sdfr rc->rc_intr = *(int *) info; 410177633Sdfr if (rc->rc_client) 411177633Sdfr CLNT_CONTROL(rc->rc_client, request, info); 412177633Sdfr break; 413177633Sdfr 414177633Sdfr case CLGET_INTERRUPTIBLE: 415177633Sdfr *(int *) info = rc->rc_intr; 416177633Sdfr break; 417177633Sdfr 418180025Sdfr case CLSET_RETRIES: 419180025Sdfr rc->rc_retries = *(int *) info; 420180025Sdfr break; 421180025Sdfr 422180025Sdfr case CLGET_RETRIES: 423180025Sdfr *(int *) info = rc->rc_retries; 424180025Sdfr break; 425180025Sdfr 426184588Sdfr case CLSET_PRIVPORT: 427184588Sdfr rc->rc_privport = *(int *) info; 428184588Sdfr break; 429184588Sdfr 430184588Sdfr case CLGET_PRIVPORT: 431184588Sdfr *(int *) info = rc->rc_privport; 432184588Sdfr break; 433184588Sdfr 434177633Sdfr default: 435177633Sdfr return (FALSE); 436177633Sdfr } 437177633Sdfr 438177633Sdfr return (TRUE); 439177633Sdfr} 440177633Sdfr 441177633Sdfrstatic void 442184588Sdfrclnt_reconnect_close(CLIENT *cl) 443184588Sdfr{ 444184588Sdfr struct rc_data *rc = (struct rc_data *)cl->cl_private; 445184588Sdfr CLIENT *client; 446184588Sdfr 447184588Sdfr mtx_lock(&rc->rc_lock); 448184588Sdfr 449184588Sdfr if (rc->rc_closed) { 450184588Sdfr mtx_unlock(&rc->rc_lock); 451184588Sdfr return; 452184588Sdfr } 453184588Sdfr 454184588Sdfr rc->rc_closed = TRUE; 455184588Sdfr client = rc->rc_client; 456184588Sdfr rc->rc_client = NULL; 457184588Sdfr 458184588Sdfr mtx_unlock(&rc->rc_lock); 459184588Sdfr 460184588Sdfr if (client) { 461184588Sdfr CLNT_CLOSE(client); 462184588Sdfr CLNT_RELEASE(client); 463184588Sdfr } 464184588Sdfr} 465184588Sdfr 466184588Sdfrstatic void 467177633Sdfrclnt_reconnect_destroy(CLIENT *cl) 468177633Sdfr{ 469177633Sdfr struct rc_data *rc = (struct rc_data *)cl->cl_private; 470177633Sdfr 471177633Sdfr if (rc->rc_client) 472177633Sdfr CLNT_DESTROY(rc->rc_client); 473184588Sdfr crfree(rc->rc_ucred); 474181684Sdfr mtx_destroy(&rc->rc_lock); 475177633Sdfr mem_free(rc, sizeof(*rc)); 476177633Sdfr mem_free(cl, sizeof (CLIENT)); 477177633Sdfr} 478