mirror of
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fbaa591f50
to reference the lock, look up the grant cookie when the GRANTED_RES comes back. Properly handle the case of an error on the grant. Add a short expiration window so that granted locks are not freed immediately. Approved by: dfr (mentor) MFC after: 2 weeks
719 lines
16 KiB
C
719 lines
16 KiB
C
/*-
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* Copyright (c) 2008 Isilon Inc http://www.isilon.com/
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* Authors: Doug Rabson <dfr@rabson.org>
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* Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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/*static char sccsid[] = "from: @(#)nlm_prot.x 1.8 87/09/21 Copyr 1987 Sun Micro";*/
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/*static char sccsid[] = "from: * @(#)nlm_prot.x 2.1 88/08/01 4.0 RPCSRC";*/
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__RCSID("$NetBSD: nlm_prot.x,v 1.6 2000/06/07 14:30:15 bouyer Exp $");
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#endif /* not lint */
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/malloc.h>
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#include <sys/systm.h>
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#include <nlm/nlm_prot.h>
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#include <nlm/nlm.h>
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/**********************************************************************/
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/*
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* Convert between various versions of the protocol structures.
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*/
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static void
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nlm_convert_to_nlm4_lock(struct nlm4_lock *dst, struct nlm_lock *src)
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{
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dst->caller_name = src->caller_name;
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dst->fh = src->fh;
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dst->oh = src->oh;
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dst->svid = src->svid;
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dst->l_offset = src->l_offset;
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dst->l_len = src->l_len;
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}
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static void
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nlm_convert_to_nlm4_share(struct nlm4_share *dst, struct nlm_share *src)
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{
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dst->caller_name = src->caller_name;
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dst->fh = src->fh;
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dst->oh = src->oh;
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dst->mode = src->mode;
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dst->access = src->access;
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}
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static void
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nlm_convert_to_nlm_holder(struct nlm_holder *dst, struct nlm4_holder *src)
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{
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dst->exclusive = src->exclusive;
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dst->svid = src->svid;
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dst->oh = src->oh;
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dst->l_offset = src->l_offset;
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dst->l_len = src->l_len;
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}
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static void
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nlm_convert_to_nlm4_holder(struct nlm4_holder *dst, struct nlm_holder *src)
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{
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dst->exclusive = src->exclusive;
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dst->svid = src->svid;
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dst->oh = src->oh;
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dst->l_offset = src->l_offset;
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dst->l_len = src->l_len;
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}
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static enum nlm_stats
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nlm_convert_to_nlm_stats(enum nlm4_stats src)
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{
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if (src > nlm4_deadlck)
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return nlm_denied;
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return (enum nlm_stats) src;
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}
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static void
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nlm_convert_to_nlm_res(struct nlm_res *dst, struct nlm4_res *src)
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{
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dst->cookie = src->cookie;
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dst->stat.stat = nlm_convert_to_nlm_stats(src->stat.stat);
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}
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static void
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nlm_convert_to_nlm4_res(struct nlm4_res *dst, struct nlm_res *src)
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{
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dst->cookie = src->cookie;
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dst->stat.stat = (enum nlm4_stats) src->stat.stat;
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}
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/**********************************************************************/
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/*
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* RPC server stubs.
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*/
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bool_t
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nlm_sm_notify_0_svc(struct nlm_sm_status *argp, void *result, struct svc_req *rqstp)
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{
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nlm_sm_notify(argp);
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return (TRUE);
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}
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bool_t
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nlm_test_1_svc(struct nlm_testargs *argp, nlm_testres *result, struct svc_req *rqstp)
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{
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bool_t retval;
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nlm4_testargs args4;
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nlm4_testres res4;
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args4.cookie = argp->cookie;
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args4.exclusive = argp->exclusive;
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nlm_convert_to_nlm4_lock(&args4.alock, &argp->alock);
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retval = nlm4_test_4_svc(&args4, &res4, rqstp);
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if (retval) {
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result->cookie = res4.cookie;
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result->stat.stat = nlm_convert_to_nlm_stats(res4.stat.stat);
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if (result->stat.stat == nlm_denied)
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nlm_convert_to_nlm_holder(
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&result->stat.nlm_testrply_u.holder,
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&res4.stat.nlm4_testrply_u.holder);
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}
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return (retval);
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}
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bool_t
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nlm_lock_1_svc(struct nlm_lockargs *argp, nlm_res *result, struct svc_req *rqstp)
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{
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bool_t retval;
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nlm4_lockargs args4;
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nlm4_res res4;
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args4.cookie = argp->cookie;
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args4.block = argp->block;
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args4.exclusive = argp->exclusive;
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nlm_convert_to_nlm4_lock(&args4.alock, &argp->alock);
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args4.reclaim = argp->reclaim;
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args4.state = argp->state;
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retval = nlm4_lock_4_svc(&args4, &res4, rqstp);
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if (retval)
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nlm_convert_to_nlm_res(result, &res4);
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return (retval);
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}
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bool_t
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nlm_cancel_1_svc(struct nlm_cancargs *argp, nlm_res *result, struct svc_req *rqstp)
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{
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bool_t retval;
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nlm4_cancargs args4;
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nlm4_res res4;
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args4.cookie = argp->cookie;
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args4.block = argp->block;
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args4.exclusive = argp->exclusive;
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nlm_convert_to_nlm4_lock(&args4.alock, &argp->alock);
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retval = nlm4_cancel_4_svc(&args4, &res4, rqstp);
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if (retval)
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nlm_convert_to_nlm_res(result, &res4);
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return (retval);
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}
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bool_t
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nlm_unlock_1_svc(struct nlm_unlockargs *argp, nlm_res *result, struct svc_req *rqstp)
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{
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bool_t retval;
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nlm4_unlockargs args4;
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nlm4_res res4;
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args4.cookie = argp->cookie;
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nlm_convert_to_nlm4_lock(&args4.alock, &argp->alock);
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retval = nlm4_unlock_4_svc(&args4, &res4, rqstp);
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if (retval)
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nlm_convert_to_nlm_res(result, &res4);
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return (retval);
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}
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bool_t
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nlm_granted_1_svc(struct nlm_testargs *argp, nlm_res *result, struct svc_req *rqstp)
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{
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bool_t retval;
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nlm4_testargs args4;
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nlm4_res res4;
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args4.cookie = argp->cookie;
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args4.exclusive = argp->exclusive;
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nlm_convert_to_nlm4_lock(&args4.alock, &argp->alock);
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retval = nlm4_granted_4_svc(&args4, &res4, rqstp);
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if (retval)
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nlm_convert_to_nlm_res(result, &res4);
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return (retval);
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}
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bool_t
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nlm_test_msg_1_svc(struct nlm_testargs *argp, void *result, struct svc_req *rqstp)
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{
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nlm4_testargs args4;
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nlm4_testres res4;
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nlm_testres res;
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CLIENT *rpc;
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char dummy;
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args4.cookie = argp->cookie;
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args4.exclusive = argp->exclusive;
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nlm_convert_to_nlm4_lock(&args4.alock, &argp->alock);
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if (nlm_do_test(&args4, &res4, rqstp, &rpc))
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return (FALSE);
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res.cookie = res4.cookie;
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res.stat.stat = nlm_convert_to_nlm_stats(res4.stat.stat);
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if (res.stat.stat == nlm_denied)
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nlm_convert_to_nlm_holder(
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&res.stat.nlm_testrply_u.holder,
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&res4.stat.nlm4_testrply_u.holder);
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if (rpc) {
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nlm_test_res_1(&res, &dummy, rpc, NULL, nlm_zero_tv);
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CLNT_RELEASE(rpc);
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}
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xdr_free((xdrproc_t) xdr_nlm_testres, &res);
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return (FALSE);
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}
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bool_t
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nlm_lock_msg_1_svc(struct nlm_lockargs *argp, void *result, struct svc_req *rqstp)
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{
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nlm4_lockargs args4;
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nlm4_res res4;
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nlm_res res;
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CLIENT *rpc;
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char dummy;
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args4.cookie = argp->cookie;
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args4.block = argp->block;
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args4.exclusive = argp->exclusive;
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nlm_convert_to_nlm4_lock(&args4.alock, &argp->alock);
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args4.reclaim = argp->reclaim;
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args4.state = argp->state;
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if (nlm_do_lock(&args4, &res4, rqstp, TRUE, &rpc))
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return (FALSE);
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nlm_convert_to_nlm_res(&res, &res4);
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if (rpc) {
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nlm_lock_res_1(&res, &dummy, rpc, NULL, nlm_zero_tv);
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CLNT_RELEASE(rpc);
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}
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xdr_free((xdrproc_t) xdr_nlm_res, &res);
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return (FALSE);
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}
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bool_t
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nlm_cancel_msg_1_svc(struct nlm_cancargs *argp, void *result, struct svc_req *rqstp)
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{
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nlm4_cancargs args4;
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nlm4_res res4;
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nlm_res res;
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CLIENT *rpc;
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char dummy;
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args4.cookie = argp->cookie;
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args4.block = argp->block;
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args4.exclusive = argp->exclusive;
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nlm_convert_to_nlm4_lock(&args4.alock, &argp->alock);
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if (nlm_do_cancel(&args4, &res4, rqstp, &rpc))
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return (FALSE);
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nlm_convert_to_nlm_res(&res, &res4);
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if (rpc) {
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nlm_cancel_res_1(&res, &dummy, rpc, NULL, nlm_zero_tv);
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CLNT_RELEASE(rpc);
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}
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xdr_free((xdrproc_t) xdr_nlm_res, &res);
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return (FALSE);
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}
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bool_t
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nlm_unlock_msg_1_svc(struct nlm_unlockargs *argp, void *result, struct svc_req *rqstp)
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{
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nlm4_unlockargs args4;
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nlm4_res res4;
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nlm_res res;
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CLIENT *rpc;
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char dummy;
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args4.cookie = argp->cookie;
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nlm_convert_to_nlm4_lock(&args4.alock, &argp->alock);
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if (nlm_do_unlock(&args4, &res4, rqstp, &rpc))
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return (FALSE);
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nlm_convert_to_nlm_res(&res, &res4);
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if (rpc) {
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nlm_unlock_res_1(&res, &dummy, rpc, NULL, nlm_zero_tv);
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CLNT_RELEASE(rpc);
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}
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xdr_free((xdrproc_t) xdr_nlm_res, &res);
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return (FALSE);
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}
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bool_t
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nlm_granted_msg_1_svc(struct nlm_testargs *argp, void *result, struct svc_req *rqstp)
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{
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nlm4_testargs args4;
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nlm4_res res4;
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nlm_res res;
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CLIENT *rpc;
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char dummy;
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args4.cookie = argp->cookie;
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args4.exclusive = argp->exclusive;
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nlm_convert_to_nlm4_lock(&args4.alock, &argp->alock);
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if (nlm_do_granted(&args4, &res4, rqstp, &rpc))
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return (FALSE);
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nlm_convert_to_nlm_res(&res, &res4);
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if (rpc) {
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nlm_granted_res_1(&res, &dummy, rpc, NULL, nlm_zero_tv);
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CLNT_RELEASE(rpc);
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}
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xdr_free((xdrproc_t) xdr_nlm_res, &res);
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return (FALSE);
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}
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bool_t
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nlm_test_res_1_svc(nlm_testres *argp, void *result, struct svc_req *rqstp)
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{
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nlm4_testres args4;
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args4.cookie = argp->cookie;
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if (argp->stat.stat == nlm_denied)
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nlm_convert_to_nlm4_holder(
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&args4.stat.nlm4_testrply_u.holder,
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&argp->stat.nlm_testrply_u.holder);
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return (nlm4_test_res_4_svc(&args4, result, rqstp));
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}
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bool_t
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nlm_lock_res_1_svc(nlm_res *argp, void *result, struct svc_req *rqstp)
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{
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nlm4_res arg4;
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nlm_convert_to_nlm4_res(&arg4, argp);
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return (nlm4_lock_res_4_svc(&arg4, result, rqstp));
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}
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bool_t
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nlm_cancel_res_1_svc(nlm_res *argp, void *result, struct svc_req *rqstp)
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{
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nlm4_res arg4;
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nlm_convert_to_nlm4_res(&arg4, argp);
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return (nlm4_cancel_res_4_svc(&arg4, result, rqstp));
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}
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bool_t
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nlm_unlock_res_1_svc(nlm_res *argp, void *result, struct svc_req *rqstp)
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{
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nlm4_res arg4;
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nlm_convert_to_nlm4_res(&arg4, argp);
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return (nlm4_unlock_res_4_svc(&arg4, result, rqstp));
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}
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bool_t
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nlm_granted_res_1_svc(nlm_res *argp, void *result, struct svc_req *rqstp)
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{
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nlm4_res arg4;
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nlm_convert_to_nlm4_res(&arg4, argp);
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return (nlm4_granted_res_4_svc(&arg4, result, rqstp));
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}
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int
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nlm_prog_1_freeresult(SVCXPRT *transp, xdrproc_t xdr_result, caddr_t result)
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{
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(void) xdr_free(xdr_result, result);
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return (TRUE);
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}
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bool_t
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nlm_share_3_svc(nlm_shareargs *argp, nlm_shareres *result, struct svc_req *rqstp)
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{
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bool_t retval;
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nlm4_shareargs args4;
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nlm4_shareres res4;
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args4.cookie = argp->cookie;
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nlm_convert_to_nlm4_share(&args4.share, &argp->share);
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args4.reclaim = argp->reclaim;
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retval = nlm4_share_4_svc(&args4, &res4, rqstp);
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if (retval) {
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result->cookie = res4.cookie;
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result->stat = nlm_convert_to_nlm_stats(res4.stat);
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result->sequence = res4.sequence;
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}
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return (retval);
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}
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bool_t
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nlm_unshare_3_svc(nlm_shareargs *argp, nlm_shareres *result, struct svc_req *rqstp)
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{
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bool_t retval;
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nlm4_shareargs args4;
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nlm4_shareres res4;
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args4.cookie = argp->cookie;
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nlm_convert_to_nlm4_share(&args4.share, &argp->share);
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args4.reclaim = argp->reclaim;
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retval = nlm4_unshare_4_svc(&args4, &res4, rqstp);
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if (retval) {
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result->cookie = res4.cookie;
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result->stat = nlm_convert_to_nlm_stats(res4.stat);
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result->sequence = res4.sequence;
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}
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return (retval);
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}
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bool_t
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nlm_nm_lock_3_svc(nlm_lockargs *argp, nlm_res *result, struct svc_req *rqstp)
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{
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bool_t retval;
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nlm4_lockargs args4;
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nlm4_res res4;
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args4.cookie = argp->cookie;
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args4.block = argp->block;
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args4.exclusive = argp->exclusive;
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nlm_convert_to_nlm4_lock(&args4.alock, &argp->alock);
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args4.reclaim = argp->reclaim;
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args4.state = argp->state;
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retval = nlm4_nm_lock_4_svc(&args4, &res4, rqstp);
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if (retval)
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nlm_convert_to_nlm_res(result, &res4);
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return (retval);
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}
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bool_t
|
|
nlm_free_all_3_svc(nlm_notify *argp, void *result, struct svc_req *rqstp)
|
|
{
|
|
struct nlm4_notify args4;
|
|
|
|
args4.name = argp->name;
|
|
args4.state = argp->state;
|
|
|
|
return (nlm4_free_all_4_svc(&args4, result, rqstp));
|
|
}
|
|
|
|
int
|
|
nlm_prog_3_freeresult(SVCXPRT *transp, xdrproc_t xdr_result, caddr_t result)
|
|
{
|
|
|
|
(void) xdr_free(xdr_result, result);
|
|
return (TRUE);
|
|
}
|
|
|
|
bool_t
|
|
nlm4_test_4_svc(nlm4_testargs *argp, nlm4_testres *result, struct svc_req *rqstp)
|
|
{
|
|
|
|
nlm_do_test(argp, result, rqstp, NULL);
|
|
return (TRUE);
|
|
}
|
|
|
|
bool_t
|
|
nlm4_lock_4_svc(nlm4_lockargs *argp, nlm4_res *result, struct svc_req *rqstp)
|
|
{
|
|
|
|
nlm_do_lock(argp, result, rqstp, TRUE, NULL);
|
|
return (TRUE);
|
|
}
|
|
|
|
bool_t
|
|
nlm4_cancel_4_svc(nlm4_cancargs *argp, nlm4_res *result, struct svc_req *rqstp)
|
|
{
|
|
|
|
nlm_do_cancel(argp, result, rqstp, NULL);
|
|
return (TRUE);
|
|
}
|
|
|
|
bool_t
|
|
nlm4_unlock_4_svc(nlm4_unlockargs *argp, nlm4_res *result, struct svc_req *rqstp)
|
|
{
|
|
|
|
nlm_do_unlock(argp, result, rqstp, NULL);
|
|
return (TRUE);
|
|
}
|
|
|
|
bool_t
|
|
nlm4_granted_4_svc(nlm4_testargs *argp, nlm4_res *result, struct svc_req *rqstp)
|
|
{
|
|
|
|
nlm_do_granted(argp, result, rqstp, NULL);
|
|
return (TRUE);
|
|
}
|
|
|
|
bool_t
|
|
nlm4_test_msg_4_svc(nlm4_testargs *argp, void *result, struct svc_req *rqstp)
|
|
{
|
|
nlm4_testres res4;
|
|
CLIENT *rpc;
|
|
char dummy;
|
|
|
|
if (nlm_do_test(argp, &res4, rqstp, &rpc))
|
|
return (FALSE);
|
|
if (rpc) {
|
|
nlm4_test_res_4(&res4, &dummy, rpc, NULL, nlm_zero_tv);
|
|
CLNT_RELEASE(rpc);
|
|
}
|
|
xdr_free((xdrproc_t) xdr_nlm4_testres, &res4);
|
|
|
|
return (FALSE);
|
|
}
|
|
|
|
bool_t
|
|
nlm4_lock_msg_4_svc(nlm4_lockargs *argp, void *result, struct svc_req *rqstp)
|
|
{
|
|
nlm4_res res4;
|
|
CLIENT *rpc;
|
|
char dummy;
|
|
|
|
if (nlm_do_lock(argp, &res4, rqstp, TRUE, &rpc))
|
|
return (FALSE);
|
|
if (rpc) {
|
|
nlm4_lock_res_4(&res4, &dummy, rpc, NULL, nlm_zero_tv);
|
|
CLNT_RELEASE(rpc);
|
|
}
|
|
xdr_free((xdrproc_t) xdr_nlm4_res, &res4);
|
|
|
|
return (FALSE);
|
|
}
|
|
|
|
bool_t
|
|
nlm4_cancel_msg_4_svc(nlm4_cancargs *argp, void *result, struct svc_req *rqstp)
|
|
{
|
|
nlm4_res res4;
|
|
CLIENT *rpc;
|
|
char dummy;
|
|
|
|
if (nlm_do_cancel(argp, &res4, rqstp, &rpc))
|
|
return (FALSE);
|
|
if (rpc) {
|
|
nlm4_cancel_res_4(&res4, &dummy, rpc, NULL, nlm_zero_tv);
|
|
CLNT_RELEASE(rpc);
|
|
}
|
|
xdr_free((xdrproc_t) xdr_nlm4_res, &res4);
|
|
|
|
return (FALSE);
|
|
}
|
|
|
|
bool_t
|
|
nlm4_unlock_msg_4_svc(nlm4_unlockargs *argp, void *result, struct svc_req *rqstp)
|
|
{
|
|
nlm4_res res4;
|
|
CLIENT *rpc;
|
|
char dummy;
|
|
|
|
if (nlm_do_unlock(argp, &res4, rqstp, &rpc))
|
|
return (FALSE);
|
|
if (rpc) {
|
|
nlm4_unlock_res_4(&res4, &dummy, rpc, NULL, nlm_zero_tv);
|
|
CLNT_RELEASE(rpc);
|
|
}
|
|
xdr_free((xdrproc_t) xdr_nlm4_res, &res4);
|
|
|
|
return (FALSE);
|
|
}
|
|
|
|
bool_t
|
|
nlm4_granted_msg_4_svc(nlm4_testargs *argp, void *result, struct svc_req *rqstp)
|
|
{
|
|
nlm4_res res4;
|
|
CLIENT *rpc;
|
|
char dummy;
|
|
|
|
if (nlm_do_granted(argp, &res4, rqstp, &rpc))
|
|
return (FALSE);
|
|
if (rpc) {
|
|
nlm4_granted_res_4(&res4, &dummy, rpc, NULL, nlm_zero_tv);
|
|
CLNT_RELEASE(rpc);
|
|
}
|
|
xdr_free((xdrproc_t) xdr_nlm4_res, &res4);
|
|
|
|
return (FALSE);
|
|
}
|
|
|
|
bool_t
|
|
nlm4_test_res_4_svc(nlm4_testres *argp, void *result, struct svc_req *rqstp)
|
|
{
|
|
|
|
return (FALSE);
|
|
}
|
|
|
|
bool_t
|
|
nlm4_lock_res_4_svc(nlm4_res *argp, void *result, struct svc_req *rqstp)
|
|
{
|
|
|
|
return (FALSE);
|
|
}
|
|
|
|
bool_t
|
|
nlm4_cancel_res_4_svc(nlm4_res *argp, void *result, struct svc_req *rqstp)
|
|
{
|
|
|
|
return (FALSE);
|
|
}
|
|
|
|
bool_t
|
|
nlm4_unlock_res_4_svc(nlm4_res *argp, void *result, struct svc_req *rqstp)
|
|
{
|
|
|
|
return (FALSE);
|
|
}
|
|
|
|
bool_t
|
|
nlm4_granted_res_4_svc(nlm4_res *argp, void *result, struct svc_req *rqstp)
|
|
{
|
|
|
|
nlm_do_granted_res(argp, rqstp);
|
|
return (FALSE);
|
|
}
|
|
|
|
bool_t
|
|
nlm4_share_4_svc(nlm4_shareargs *argp, nlm4_shareres *result, struct svc_req *rqstp)
|
|
{
|
|
|
|
memset(result, 0, sizeof(*result));
|
|
result->stat = nlm4_denied;
|
|
return (TRUE);
|
|
}
|
|
|
|
bool_t
|
|
nlm4_unshare_4_svc(nlm4_shareargs *argp, nlm4_shareres *result, struct svc_req *rqstp)
|
|
{
|
|
|
|
memset(result, 0, sizeof(*result));
|
|
result->stat = nlm4_denied;
|
|
return (TRUE);
|
|
}
|
|
|
|
bool_t
|
|
nlm4_nm_lock_4_svc(nlm4_lockargs *argp, nlm4_res *result, struct svc_req *rqstp)
|
|
{
|
|
|
|
nlm_do_lock(argp, result, rqstp, FALSE, NULL);
|
|
return (TRUE);
|
|
}
|
|
|
|
bool_t
|
|
nlm4_free_all_4_svc(nlm4_notify *argp, void *result, struct svc_req *rqstp)
|
|
{
|
|
|
|
nlm_do_free_all(argp);
|
|
return (TRUE);
|
|
}
|
|
|
|
int
|
|
nlm_prog_4_freeresult(SVCXPRT *transp, xdrproc_t xdr_result, caddr_t result)
|
|
{
|
|
|
|
(void) xdr_free(xdr_result, result);
|
|
return (TRUE);
|
|
}
|