clnt_rc.c revision 195703
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 195703 2009-07-14 22:54:29Z kib $"); 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 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 } 184188142Sdfr 185188142Sdfr oldcred = td->td_ucred; 186188142Sdfr td->td_ucred = rc->rc_ucred; 187184588Sdfr if (rc->rc_privport) 188184588Sdfr bindresvport(so, NULL); 189177633Sdfr 190177633Sdfr if (rc->rc_nconf->nc_semantics == NC_TPI_CLTS) 191194934Srmacklem newclient = clnt_dg_create(so, 192177633Sdfr (struct sockaddr *) &rc->rc_addr, rc->rc_prog, rc->rc_vers, 193177633Sdfr rc->rc_sendsz, rc->rc_recvsz); 194177633Sdfr else 195194934Srmacklem newclient = clnt_vc_create(so, 196177633Sdfr (struct sockaddr *) &rc->rc_addr, rc->rc_prog, rc->rc_vers, 197177633Sdfr rc->rc_sendsz, rc->rc_recvsz); 198184588Sdfr td->td_ucred = oldcred; 199177633Sdfr 200194934Srmacklem if (!newclient) { 201184588Sdfr soclose(so); 202184588Sdfr rc->rc_err = rpc_createerr.cf_error; 203180025Sdfr stat = rpc_createerr.cf_stat; 204180025Sdfr goto out; 205180025Sdfr } 206178112Sdfr 207194934Srmacklem CLNT_CONTROL(newclient, CLSET_FD_CLOSE, 0); 208194934Srmacklem CLNT_CONTROL(newclient, CLSET_CONNECT, &one); 209194934Srmacklem CLNT_CONTROL(newclient, CLSET_TIMEOUT, &rc->rc_timeout); 210194934Srmacklem CLNT_CONTROL(newclient, CLSET_RETRY_TIMEOUT, &rc->rc_retry); 211194934Srmacklem CLNT_CONTROL(newclient, CLSET_WAITCHAN, rc->rc_waitchan); 212194934Srmacklem CLNT_CONTROL(newclient, CLSET_INTERRUPTIBLE, &rc->rc_intr); 213180025Sdfr stat = RPC_SUCCESS; 214177633Sdfr 215180025Sdfrout: 216180025Sdfr mtx_lock(&rc->rc_lock); 217194934Srmacklem KASSERT(rc->rc_client == NULL, ("rc_client not null")); 218194934Srmacklem if (!rc->rc_closed) { 219194934Srmacklem rc->rc_client = newclient; 220194934Srmacklem newclient = NULL; 221184588Sdfr } 222180025Sdfr rc->rc_connecting = FALSE; 223180025Sdfr wakeup(rc); 224180025Sdfr mtx_unlock(&rc->rc_lock); 225180025Sdfr 226194934Srmacklem if (newclient) { 227194934Srmacklem /* 228194934Srmacklem * It has been closed, so discard the new client. 229194934Srmacklem * nb: clnt_[dg|vc]_close()/clnt_[dg|vc]_destroy() cannot 230194934Srmacklem * be called with the rc_lock mutex held, since they may 231194934Srmacklem * msleep() while holding a different mutex. 232194934Srmacklem */ 233194934Srmacklem CLNT_CLOSE(newclient); 234194934Srmacklem CLNT_RELEASE(newclient); 235194934Srmacklem } 236194934Srmacklem 237180025Sdfr return (stat); 238177633Sdfr} 239177633Sdfr 240177633Sdfrstatic enum clnt_stat 241177633Sdfrclnt_reconnect_call( 242180025Sdfr CLIENT *cl, /* client handle */ 243180025Sdfr struct rpc_callextra *ext, /* call metadata */ 244177633Sdfr rpcproc_t proc, /* procedure number */ 245184588Sdfr struct mbuf *args, /* pointer to args */ 246184588Sdfr struct mbuf **resultsp, /* pointer to results */ 247184588Sdfr struct timeval utimeout) 248177633Sdfr{ 249177633Sdfr struct rc_data *rc = (struct rc_data *)cl->cl_private; 250180025Sdfr CLIENT *client; 251177633Sdfr enum clnt_stat stat; 252194934Srmacklem int tries, error; 253177633Sdfr 254180025Sdfr tries = 0; 255177633Sdfr do { 256194934Srmacklem mtx_lock(&rc->rc_lock); 257184588Sdfr if (rc->rc_closed) { 258194934Srmacklem mtx_unlock(&rc->rc_lock); 259184588Sdfr return (RPC_CANTSEND); 260184588Sdfr } 261184588Sdfr 262178112Sdfr if (!rc->rc_client) { 263194934Srmacklem mtx_unlock(&rc->rc_lock); 264178112Sdfr stat = clnt_reconnect_connect(cl); 265184588Sdfr if (stat == RPC_SYSTEMERROR) { 266194934Srmacklem error = tsleep(&fake_wchan, 267195703Skib rc->rc_intr ? PCATCH | PBDRY : 0, "rpccon", 268195703Skib hz); 269194934Srmacklem if (error == EINTR || error == ERESTART) 270194934Srmacklem return (RPC_INTR); 271184588Sdfr tries++; 272184588Sdfr if (tries >= rc->rc_retries) 273184588Sdfr return (stat); 274184588Sdfr continue; 275184588Sdfr } 276178112Sdfr if (stat != RPC_SUCCESS) 277178112Sdfr return (stat); 278194934Srmacklem mtx_lock(&rc->rc_lock); 279178112Sdfr } 280177633Sdfr 281184588Sdfr if (!rc->rc_client) { 282184588Sdfr mtx_unlock(&rc->rc_lock); 283184588Sdfr stat = RPC_FAILED; 284184588Sdfr continue; 285184588Sdfr } 286180025Sdfr CLNT_ACQUIRE(rc->rc_client); 287180025Sdfr client = rc->rc_client; 288180025Sdfr mtx_unlock(&rc->rc_lock); 289184588Sdfr stat = CLNT_CALL_MBUF(client, ext, proc, args, 290184588Sdfr resultsp, utimeout); 291177633Sdfr 292184588Sdfr if (stat != RPC_SUCCESS) { 293184588Sdfr if (!ext) 294184588Sdfr CLNT_GETERR(client, &rc->rc_err); 295184588Sdfr } 296184588Sdfr 297177633Sdfr if (stat == RPC_TIMEDOUT) { 298177633Sdfr /* 299177633Sdfr * Check for async send misfeature for NLM 300177633Sdfr * protocol. 301177633Sdfr */ 302177633Sdfr if ((rc->rc_timeout.tv_sec == 0 303177633Sdfr && rc->rc_timeout.tv_usec == 0) 304177633Sdfr || (rc->rc_timeout.tv_sec == -1 305177633Sdfr && utimeout.tv_sec == 0 306180025Sdfr && utimeout.tv_usec == 0)) { 307194934Srmacklem CLNT_RELEASE(client); 308177633Sdfr break; 309180025Sdfr } 310177633Sdfr } 311177633Sdfr 312184588Sdfr if (stat == RPC_TIMEDOUT || stat == RPC_CANTSEND 313184588Sdfr || stat == RPC_CANTRECV) { 314180025Sdfr tries++; 315194934Srmacklem if (tries >= rc->rc_retries) { 316194934Srmacklem CLNT_RELEASE(client); 317180025Sdfr break; 318194934Srmacklem } 319180025Sdfr 320180025Sdfr if (ext && ext->rc_feedback) 321180025Sdfr ext->rc_feedback(FEEDBACK_RECONNECT, proc, 322180025Sdfr ext->rc_feedback_arg); 323180025Sdfr 324180025Sdfr mtx_lock(&rc->rc_lock); 325180025Sdfr /* 326180025Sdfr * Make sure that someone else hasn't already 327194934Srmacklem * reconnected by checking if rc_client has changed. 328194934Srmacklem * If not, we are done with the client and must 329194934Srmacklem * do CLNT_RELEASE(client) twice to dispose of it, 330194934Srmacklem * because there is both an initial refcnt and one 331194934Srmacklem * acquired by CLNT_ACQUIRE() above. 332180025Sdfr */ 333180025Sdfr if (rc->rc_client == client) { 334180025Sdfr rc->rc_client = NULL; 335194934Srmacklem mtx_unlock(&rc->rc_lock); 336194934Srmacklem CLNT_RELEASE(client); 337194934Srmacklem } else { 338194934Srmacklem mtx_unlock(&rc->rc_lock); 339180025Sdfr } 340194934Srmacklem CLNT_RELEASE(client); 341184588Sdfr } else { 342194934Srmacklem CLNT_RELEASE(client); 343184588Sdfr break; 344177633Sdfr } 345177633Sdfr } while (stat != RPC_SUCCESS); 346177633Sdfr 347184588Sdfr KASSERT(stat != RPC_SUCCESS || *resultsp, 348184588Sdfr ("RPC_SUCCESS without reply")); 349184588Sdfr 350177633Sdfr return (stat); 351177633Sdfr} 352177633Sdfr 353177633Sdfrstatic void 354177633Sdfrclnt_reconnect_geterr(CLIENT *cl, struct rpc_err *errp) 355177633Sdfr{ 356177633Sdfr struct rc_data *rc = (struct rc_data *)cl->cl_private; 357177633Sdfr 358184588Sdfr *errp = rc->rc_err; 359177633Sdfr} 360177633Sdfr 361194934Srmacklem/* 362194934Srmacklem * Since this function requires that rc_client be valid, it can 363194934Srmacklem * only be called when that is guaranteed to be the case. 364194934Srmacklem */ 365177633Sdfrstatic bool_t 366177633Sdfrclnt_reconnect_freeres(CLIENT *cl, xdrproc_t xdr_res, void *res_ptr) 367177633Sdfr{ 368177633Sdfr struct rc_data *rc = (struct rc_data *)cl->cl_private; 369177633Sdfr 370177633Sdfr return (CLNT_FREERES(rc->rc_client, xdr_res, res_ptr)); 371177633Sdfr} 372177633Sdfr 373177633Sdfr/*ARGSUSED*/ 374177633Sdfrstatic void 375177633Sdfrclnt_reconnect_abort(CLIENT *h) 376177633Sdfr{ 377177633Sdfr} 378177633Sdfr 379194934Srmacklem/* 380194934Srmacklem * CLNT_CONTROL() on the client returned by clnt_reconnect_create() must 381194934Srmacklem * always be called before CLNT_CALL_MBUF() by a single thread only. 382194934Srmacklem */ 383177633Sdfrstatic bool_t 384177633Sdfrclnt_reconnect_control(CLIENT *cl, u_int request, void *info) 385177633Sdfr{ 386177633Sdfr struct rc_data *rc = (struct rc_data *)cl->cl_private; 387177633Sdfr 388177633Sdfr if (info == NULL) { 389177633Sdfr return (FALSE); 390177633Sdfr } 391177633Sdfr switch (request) { 392177633Sdfr case CLSET_TIMEOUT: 393177633Sdfr rc->rc_timeout = *(struct timeval *)info; 394177633Sdfr if (rc->rc_client) 395177633Sdfr CLNT_CONTROL(rc->rc_client, request, info); 396177633Sdfr break; 397177633Sdfr 398177633Sdfr case CLGET_TIMEOUT: 399177633Sdfr *(struct timeval *)info = rc->rc_timeout; 400177633Sdfr break; 401177633Sdfr 402177633Sdfr case CLSET_RETRY_TIMEOUT: 403177633Sdfr rc->rc_retry = *(struct timeval *)info; 404177633Sdfr if (rc->rc_client) 405177633Sdfr CLNT_CONTROL(rc->rc_client, request, info); 406177633Sdfr break; 407177633Sdfr 408177633Sdfr case CLGET_RETRY_TIMEOUT: 409177633Sdfr *(struct timeval *)info = rc->rc_retry; 410177633Sdfr break; 411177633Sdfr 412177633Sdfr case CLGET_VERS: 413177633Sdfr *(uint32_t *)info = rc->rc_vers; 414177633Sdfr break; 415177633Sdfr 416177633Sdfr case CLSET_VERS: 417177633Sdfr rc->rc_vers = *(uint32_t *) info; 418177633Sdfr if (rc->rc_client) 419177633Sdfr CLNT_CONTROL(rc->rc_client, CLSET_VERS, info); 420177633Sdfr break; 421177633Sdfr 422177633Sdfr case CLGET_PROG: 423177633Sdfr *(uint32_t *)info = rc->rc_prog; 424177633Sdfr break; 425177633Sdfr 426177633Sdfr case CLSET_PROG: 427177633Sdfr rc->rc_prog = *(uint32_t *) info; 428177633Sdfr if (rc->rc_client) 429177633Sdfr CLNT_CONTROL(rc->rc_client, request, info); 430177633Sdfr break; 431177633Sdfr 432177633Sdfr case CLSET_WAITCHAN: 433184588Sdfr rc->rc_waitchan = (char *)info; 434177633Sdfr if (rc->rc_client) 435177633Sdfr CLNT_CONTROL(rc->rc_client, request, info); 436177633Sdfr break; 437177633Sdfr 438177633Sdfr case CLGET_WAITCHAN: 439177633Sdfr *(const char **) info = rc->rc_waitchan; 440177633Sdfr break; 441177633Sdfr 442177633Sdfr case CLSET_INTERRUPTIBLE: 443177633Sdfr rc->rc_intr = *(int *) info; 444177633Sdfr if (rc->rc_client) 445177633Sdfr CLNT_CONTROL(rc->rc_client, request, info); 446177633Sdfr break; 447177633Sdfr 448177633Sdfr case CLGET_INTERRUPTIBLE: 449177633Sdfr *(int *) info = rc->rc_intr; 450177633Sdfr break; 451177633Sdfr 452180025Sdfr case CLSET_RETRIES: 453180025Sdfr rc->rc_retries = *(int *) info; 454180025Sdfr break; 455180025Sdfr 456180025Sdfr case CLGET_RETRIES: 457180025Sdfr *(int *) info = rc->rc_retries; 458180025Sdfr break; 459180025Sdfr 460184588Sdfr case CLSET_PRIVPORT: 461184588Sdfr rc->rc_privport = *(int *) info; 462184588Sdfr break; 463184588Sdfr 464184588Sdfr case CLGET_PRIVPORT: 465184588Sdfr *(int *) info = rc->rc_privport; 466184588Sdfr break; 467184588Sdfr 468177633Sdfr default: 469177633Sdfr return (FALSE); 470177633Sdfr } 471177633Sdfr 472177633Sdfr return (TRUE); 473177633Sdfr} 474177633Sdfr 475177633Sdfrstatic void 476184588Sdfrclnt_reconnect_close(CLIENT *cl) 477184588Sdfr{ 478184588Sdfr struct rc_data *rc = (struct rc_data *)cl->cl_private; 479184588Sdfr CLIENT *client; 480184588Sdfr 481184588Sdfr mtx_lock(&rc->rc_lock); 482184588Sdfr 483184588Sdfr if (rc->rc_closed) { 484184588Sdfr mtx_unlock(&rc->rc_lock); 485184588Sdfr return; 486184588Sdfr } 487184588Sdfr 488184588Sdfr rc->rc_closed = TRUE; 489184588Sdfr client = rc->rc_client; 490184588Sdfr rc->rc_client = NULL; 491184588Sdfr 492184588Sdfr mtx_unlock(&rc->rc_lock); 493184588Sdfr 494184588Sdfr if (client) { 495184588Sdfr CLNT_CLOSE(client); 496184588Sdfr CLNT_RELEASE(client); 497184588Sdfr } 498184588Sdfr} 499184588Sdfr 500184588Sdfrstatic void 501177633Sdfrclnt_reconnect_destroy(CLIENT *cl) 502177633Sdfr{ 503177633Sdfr struct rc_data *rc = (struct rc_data *)cl->cl_private; 504177633Sdfr 505177633Sdfr if (rc->rc_client) 506177633Sdfr CLNT_DESTROY(rc->rc_client); 507184588Sdfr crfree(rc->rc_ucred); 508181684Sdfr mtx_destroy(&rc->rc_lock); 509177633Sdfr mem_free(rc, sizeof(*rc)); 510177633Sdfr mem_free(cl, sizeof (CLIENT)); 511177633Sdfr} 512