clnt_rc.c revision 221127
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 221127 2011-04-27 18:19:26Z rmacklem $"); 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; 149194934Srmacklem CLIENT *newclient = NULL; 150177633Sdfr 151180025Sdfr mtx_lock(&rc->rc_lock); 152194934Srmacklem while (rc->rc_connecting) { 153194934Srmacklem error = msleep(rc, &rc->rc_lock, 154194934Srmacklem rc->rc_intr ? PCATCH : 0, "rpcrecon", 0); 155194934Srmacklem if (error) { 156194934Srmacklem mtx_unlock(&rc->rc_lock); 157194934Srmacklem return (RPC_INTR); 158194934Srmacklem } 159194934Srmacklem } 160184588Sdfr if (rc->rc_closed) { 161184588Sdfr mtx_unlock(&rc->rc_lock); 162184588Sdfr return (RPC_CANTSEND); 163184588Sdfr } 164194934Srmacklem if (rc->rc_client) { 165180025Sdfr mtx_unlock(&rc->rc_lock); 166180025Sdfr return (RPC_SUCCESS); 167180025Sdfr } 168194934Srmacklem 169194934Srmacklem /* 170194934Srmacklem * My turn to attempt a connect. The rc_connecting variable 171194934Srmacklem * serializes the following code sequence, so it is guaranteed 172194934Srmacklem * that rc_client will still be NULL after it is re-locked below, 173194934Srmacklem * since that is the only place it is set non-NULL. 174194934Srmacklem */ 175194934Srmacklem rc->rc_connecting = TRUE; 176180025Sdfr mtx_unlock(&rc->rc_lock); 177180025Sdfr 178196503Szec oldcred = td->td_ucred; 179196503Szec td->td_ucred = rc->rc_ucred; 180177633Sdfr so = __rpc_nconf2socket(rc->rc_nconf); 181177633Sdfr if (!so) { 182180025Sdfr stat = rpc_createerr.cf_stat = RPC_TLIERROR; 183177633Sdfr rpc_createerr.cf_error.re_errno = 0; 184196503Szec td->td_ucred = oldcred; 185180025Sdfr goto out; 186177633Sdfr } 187188142Sdfr 188184588Sdfr if (rc->rc_privport) 189184588Sdfr bindresvport(so, NULL); 190177633Sdfr 191177633Sdfr if (rc->rc_nconf->nc_semantics == NC_TPI_CLTS) 192194934Srmacklem newclient = clnt_dg_create(so, 193177633Sdfr (struct sockaddr *) &rc->rc_addr, rc->rc_prog, rc->rc_vers, 194177633Sdfr rc->rc_sendsz, rc->rc_recvsz); 195177633Sdfr else 196194934Srmacklem newclient = clnt_vc_create(so, 197177633Sdfr (struct sockaddr *) &rc->rc_addr, rc->rc_prog, rc->rc_vers, 198221127Srmacklem rc->rc_sendsz, rc->rc_recvsz, rc->rc_intr); 199184588Sdfr td->td_ucred = oldcred; 200177633Sdfr 201194934Srmacklem if (!newclient) { 202184588Sdfr soclose(so); 203184588Sdfr rc->rc_err = rpc_createerr.cf_error; 204180025Sdfr stat = rpc_createerr.cf_stat; 205180025Sdfr goto out; 206180025Sdfr } 207178112Sdfr 208194934Srmacklem CLNT_CONTROL(newclient, CLSET_FD_CLOSE, 0); 209194934Srmacklem CLNT_CONTROL(newclient, CLSET_CONNECT, &one); 210194934Srmacklem CLNT_CONTROL(newclient, CLSET_TIMEOUT, &rc->rc_timeout); 211194934Srmacklem CLNT_CONTROL(newclient, CLSET_RETRY_TIMEOUT, &rc->rc_retry); 212194934Srmacklem CLNT_CONTROL(newclient, CLSET_WAITCHAN, rc->rc_waitchan); 213194934Srmacklem CLNT_CONTROL(newclient, CLSET_INTERRUPTIBLE, &rc->rc_intr); 214180025Sdfr stat = RPC_SUCCESS; 215177633Sdfr 216180025Sdfrout: 217180025Sdfr mtx_lock(&rc->rc_lock); 218194934Srmacklem KASSERT(rc->rc_client == NULL, ("rc_client not null")); 219194934Srmacklem if (!rc->rc_closed) { 220194934Srmacklem rc->rc_client = newclient; 221194934Srmacklem newclient = NULL; 222184588Sdfr } 223180025Sdfr rc->rc_connecting = FALSE; 224180025Sdfr wakeup(rc); 225180025Sdfr mtx_unlock(&rc->rc_lock); 226180025Sdfr 227194934Srmacklem if (newclient) { 228194934Srmacklem /* 229194934Srmacklem * It has been closed, so discard the new client. 230194934Srmacklem * nb: clnt_[dg|vc]_close()/clnt_[dg|vc]_destroy() cannot 231194934Srmacklem * be called with the rc_lock mutex held, since they may 232194934Srmacklem * msleep() while holding a different mutex. 233194934Srmacklem */ 234194934Srmacklem CLNT_CLOSE(newclient); 235194934Srmacklem CLNT_RELEASE(newclient); 236194934Srmacklem } 237194934Srmacklem 238180025Sdfr return (stat); 239177633Sdfr} 240177633Sdfr 241177633Sdfrstatic enum clnt_stat 242177633Sdfrclnt_reconnect_call( 243180025Sdfr CLIENT *cl, /* client handle */ 244180025Sdfr struct rpc_callextra *ext, /* call metadata */ 245177633Sdfr rpcproc_t proc, /* procedure number */ 246184588Sdfr struct mbuf *args, /* pointer to args */ 247184588Sdfr struct mbuf **resultsp, /* pointer to results */ 248184588Sdfr struct timeval utimeout) 249177633Sdfr{ 250177633Sdfr struct rc_data *rc = (struct rc_data *)cl->cl_private; 251180025Sdfr CLIENT *client; 252177633Sdfr enum clnt_stat stat; 253194934Srmacklem int tries, error; 254177633Sdfr 255180025Sdfr tries = 0; 256177633Sdfr do { 257194934Srmacklem mtx_lock(&rc->rc_lock); 258184588Sdfr if (rc->rc_closed) { 259194934Srmacklem mtx_unlock(&rc->rc_lock); 260184588Sdfr return (RPC_CANTSEND); 261184588Sdfr } 262184588Sdfr 263178112Sdfr if (!rc->rc_client) { 264194934Srmacklem mtx_unlock(&rc->rc_lock); 265178112Sdfr stat = clnt_reconnect_connect(cl); 266184588Sdfr if (stat == RPC_SYSTEMERROR) { 267194934Srmacklem error = tsleep(&fake_wchan, 268195703Skib rc->rc_intr ? PCATCH | PBDRY : 0, "rpccon", 269195703Skib hz); 270194934Srmacklem if (error == EINTR || error == ERESTART) 271194934Srmacklem return (RPC_INTR); 272184588Sdfr tries++; 273184588Sdfr if (tries >= rc->rc_retries) 274184588Sdfr return (stat); 275184588Sdfr continue; 276184588Sdfr } 277178112Sdfr if (stat != RPC_SUCCESS) 278178112Sdfr return (stat); 279194934Srmacklem mtx_lock(&rc->rc_lock); 280178112Sdfr } 281177633Sdfr 282184588Sdfr if (!rc->rc_client) { 283184588Sdfr mtx_unlock(&rc->rc_lock); 284184588Sdfr stat = RPC_FAILED; 285184588Sdfr continue; 286184588Sdfr } 287180025Sdfr CLNT_ACQUIRE(rc->rc_client); 288180025Sdfr client = rc->rc_client; 289180025Sdfr mtx_unlock(&rc->rc_lock); 290184588Sdfr stat = CLNT_CALL_MBUF(client, ext, proc, args, 291184588Sdfr resultsp, utimeout); 292177633Sdfr 293184588Sdfr if (stat != RPC_SUCCESS) { 294184588Sdfr if (!ext) 295184588Sdfr CLNT_GETERR(client, &rc->rc_err); 296184588Sdfr } 297184588Sdfr 298177633Sdfr if (stat == RPC_TIMEDOUT) { 299177633Sdfr /* 300177633Sdfr * Check for async send misfeature for NLM 301177633Sdfr * protocol. 302177633Sdfr */ 303177633Sdfr if ((rc->rc_timeout.tv_sec == 0 304177633Sdfr && rc->rc_timeout.tv_usec == 0) 305177633Sdfr || (rc->rc_timeout.tv_sec == -1 306177633Sdfr && utimeout.tv_sec == 0 307180025Sdfr && utimeout.tv_usec == 0)) { 308194934Srmacklem CLNT_RELEASE(client); 309177633Sdfr break; 310180025Sdfr } 311177633Sdfr } 312177633Sdfr 313184588Sdfr if (stat == RPC_TIMEDOUT || stat == RPC_CANTSEND 314184588Sdfr || stat == RPC_CANTRECV) { 315180025Sdfr tries++; 316194934Srmacklem if (tries >= rc->rc_retries) { 317194934Srmacklem CLNT_RELEASE(client); 318180025Sdfr break; 319194934Srmacklem } 320180025Sdfr 321180025Sdfr if (ext && ext->rc_feedback) 322180025Sdfr ext->rc_feedback(FEEDBACK_RECONNECT, proc, 323180025Sdfr ext->rc_feedback_arg); 324180025Sdfr 325180025Sdfr mtx_lock(&rc->rc_lock); 326180025Sdfr /* 327180025Sdfr * Make sure that someone else hasn't already 328194934Srmacklem * reconnected by checking if rc_client has changed. 329194934Srmacklem * If not, we are done with the client and must 330194934Srmacklem * do CLNT_RELEASE(client) twice to dispose of it, 331194934Srmacklem * because there is both an initial refcnt and one 332194934Srmacklem * acquired by CLNT_ACQUIRE() above. 333180025Sdfr */ 334180025Sdfr if (rc->rc_client == client) { 335180025Sdfr rc->rc_client = NULL; 336194934Srmacklem mtx_unlock(&rc->rc_lock); 337194934Srmacklem CLNT_RELEASE(client); 338194934Srmacklem } else { 339194934Srmacklem mtx_unlock(&rc->rc_lock); 340180025Sdfr } 341194934Srmacklem CLNT_RELEASE(client); 342184588Sdfr } else { 343194934Srmacklem CLNT_RELEASE(client); 344184588Sdfr break; 345177633Sdfr } 346177633Sdfr } while (stat != RPC_SUCCESS); 347177633Sdfr 348184588Sdfr KASSERT(stat != RPC_SUCCESS || *resultsp, 349184588Sdfr ("RPC_SUCCESS without reply")); 350184588Sdfr 351177633Sdfr return (stat); 352177633Sdfr} 353177633Sdfr 354177633Sdfrstatic void 355177633Sdfrclnt_reconnect_geterr(CLIENT *cl, struct rpc_err *errp) 356177633Sdfr{ 357177633Sdfr struct rc_data *rc = (struct rc_data *)cl->cl_private; 358177633Sdfr 359184588Sdfr *errp = rc->rc_err; 360177633Sdfr} 361177633Sdfr 362194934Srmacklem/* 363194934Srmacklem * Since this function requires that rc_client be valid, it can 364194934Srmacklem * only be called when that is guaranteed to be the case. 365194934Srmacklem */ 366177633Sdfrstatic bool_t 367177633Sdfrclnt_reconnect_freeres(CLIENT *cl, xdrproc_t xdr_res, void *res_ptr) 368177633Sdfr{ 369177633Sdfr struct rc_data *rc = (struct rc_data *)cl->cl_private; 370177633Sdfr 371177633Sdfr return (CLNT_FREERES(rc->rc_client, xdr_res, res_ptr)); 372177633Sdfr} 373177633Sdfr 374177633Sdfr/*ARGSUSED*/ 375177633Sdfrstatic void 376177633Sdfrclnt_reconnect_abort(CLIENT *h) 377177633Sdfr{ 378177633Sdfr} 379177633Sdfr 380194934Srmacklem/* 381194934Srmacklem * CLNT_CONTROL() on the client returned by clnt_reconnect_create() must 382194934Srmacklem * always be called before CLNT_CALL_MBUF() by a single thread only. 383194934Srmacklem */ 384177633Sdfrstatic bool_t 385177633Sdfrclnt_reconnect_control(CLIENT *cl, u_int request, void *info) 386177633Sdfr{ 387177633Sdfr struct rc_data *rc = (struct rc_data *)cl->cl_private; 388177633Sdfr 389177633Sdfr if (info == NULL) { 390177633Sdfr return (FALSE); 391177633Sdfr } 392177633Sdfr switch (request) { 393177633Sdfr case CLSET_TIMEOUT: 394177633Sdfr rc->rc_timeout = *(struct timeval *)info; 395177633Sdfr if (rc->rc_client) 396177633Sdfr CLNT_CONTROL(rc->rc_client, request, info); 397177633Sdfr break; 398177633Sdfr 399177633Sdfr case CLGET_TIMEOUT: 400177633Sdfr *(struct timeval *)info = rc->rc_timeout; 401177633Sdfr break; 402177633Sdfr 403177633Sdfr case CLSET_RETRY_TIMEOUT: 404177633Sdfr rc->rc_retry = *(struct timeval *)info; 405177633Sdfr if (rc->rc_client) 406177633Sdfr CLNT_CONTROL(rc->rc_client, request, info); 407177633Sdfr break; 408177633Sdfr 409177633Sdfr case CLGET_RETRY_TIMEOUT: 410177633Sdfr *(struct timeval *)info = rc->rc_retry; 411177633Sdfr break; 412177633Sdfr 413177633Sdfr case CLGET_VERS: 414177633Sdfr *(uint32_t *)info = rc->rc_vers; 415177633Sdfr break; 416177633Sdfr 417177633Sdfr case CLSET_VERS: 418177633Sdfr rc->rc_vers = *(uint32_t *) info; 419177633Sdfr if (rc->rc_client) 420177633Sdfr CLNT_CONTROL(rc->rc_client, CLSET_VERS, info); 421177633Sdfr break; 422177633Sdfr 423177633Sdfr case CLGET_PROG: 424177633Sdfr *(uint32_t *)info = rc->rc_prog; 425177633Sdfr break; 426177633Sdfr 427177633Sdfr case CLSET_PROG: 428177633Sdfr rc->rc_prog = *(uint32_t *) info; 429177633Sdfr if (rc->rc_client) 430177633Sdfr CLNT_CONTROL(rc->rc_client, request, info); 431177633Sdfr break; 432177633Sdfr 433177633Sdfr case CLSET_WAITCHAN: 434184588Sdfr rc->rc_waitchan = (char *)info; 435177633Sdfr if (rc->rc_client) 436177633Sdfr CLNT_CONTROL(rc->rc_client, request, info); 437177633Sdfr break; 438177633Sdfr 439177633Sdfr case CLGET_WAITCHAN: 440177633Sdfr *(const char **) info = rc->rc_waitchan; 441177633Sdfr break; 442177633Sdfr 443177633Sdfr case CLSET_INTERRUPTIBLE: 444177633Sdfr rc->rc_intr = *(int *) info; 445177633Sdfr if (rc->rc_client) 446177633Sdfr CLNT_CONTROL(rc->rc_client, request, info); 447177633Sdfr break; 448177633Sdfr 449177633Sdfr case CLGET_INTERRUPTIBLE: 450177633Sdfr *(int *) info = rc->rc_intr; 451177633Sdfr break; 452177633Sdfr 453180025Sdfr case CLSET_RETRIES: 454180025Sdfr rc->rc_retries = *(int *) info; 455180025Sdfr break; 456180025Sdfr 457180025Sdfr case CLGET_RETRIES: 458180025Sdfr *(int *) info = rc->rc_retries; 459180025Sdfr break; 460180025Sdfr 461184588Sdfr case CLSET_PRIVPORT: 462184588Sdfr rc->rc_privport = *(int *) info; 463184588Sdfr break; 464184588Sdfr 465184588Sdfr case CLGET_PRIVPORT: 466184588Sdfr *(int *) info = rc->rc_privport; 467184588Sdfr break; 468184588Sdfr 469177633Sdfr default: 470177633Sdfr return (FALSE); 471177633Sdfr } 472177633Sdfr 473177633Sdfr return (TRUE); 474177633Sdfr} 475177633Sdfr 476177633Sdfrstatic void 477184588Sdfrclnt_reconnect_close(CLIENT *cl) 478184588Sdfr{ 479184588Sdfr struct rc_data *rc = (struct rc_data *)cl->cl_private; 480184588Sdfr CLIENT *client; 481184588Sdfr 482184588Sdfr mtx_lock(&rc->rc_lock); 483184588Sdfr 484184588Sdfr if (rc->rc_closed) { 485184588Sdfr mtx_unlock(&rc->rc_lock); 486184588Sdfr return; 487184588Sdfr } 488184588Sdfr 489184588Sdfr rc->rc_closed = TRUE; 490184588Sdfr client = rc->rc_client; 491184588Sdfr rc->rc_client = NULL; 492184588Sdfr 493184588Sdfr mtx_unlock(&rc->rc_lock); 494184588Sdfr 495184588Sdfr if (client) { 496184588Sdfr CLNT_CLOSE(client); 497184588Sdfr CLNT_RELEASE(client); 498184588Sdfr } 499184588Sdfr} 500184588Sdfr 501184588Sdfrstatic void 502177633Sdfrclnt_reconnect_destroy(CLIENT *cl) 503177633Sdfr{ 504177633Sdfr struct rc_data *rc = (struct rc_data *)cl->cl_private; 505177633Sdfr 506177633Sdfr if (rc->rc_client) 507177633Sdfr CLNT_DESTROY(rc->rc_client); 508184588Sdfr crfree(rc->rc_ucred); 509181684Sdfr mtx_destroy(&rc->rc_lock); 510177633Sdfr mem_free(rc, sizeof(*rc)); 511177633Sdfr mem_free(cl, sizeof (CLIENT)); 512177633Sdfr} 513