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/*
* Copyright (c) 2008 Isilon Inc http://www.isilon.com/
* Authors: Doug Rabson <dfr@rabson.org>
* Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
*/
/*
* Client-side RPC wrappers (nlm_..._rpc)
* Called from nlm_client.c
*
* Source code derived from FreeBSD nlm_advlock.c
*/
#include <sys/param.h>
#include <sys/fcntl.h>
#include <sys/lock.h>
#include <sys/flock.h>
#include <sys/mount.h>
#include <sys/mutex.h>
#include <sys/proc.h>
#include <sys/syslog.h>
#include <sys/systm.h>
#include <sys/unistd.h>
#include <sys/vnode.h>
#include <sys/queue.h>
#include <rpcsvc/nlm_prot.h>
#include <nfs/nfs.h>
#include <nfs/nfs_clnt.h>
#include <nfs/export.h>
#include <nfs/rnode.h>
#include "nlm_impl.h"
static void
nlm_convert_to_nlm_lock(struct nlm_lock *dst, struct nlm4_lock *src)
{
dst->caller_name = src->caller_name;
dst->fh = src->fh;
dst->oh = src->oh;
dst->svid = src->svid;
dst->l_offset = src->l_offset;
dst->l_len = src->l_len;
}
static void
nlm_convert_to_nlm4_holder(struct nlm4_holder *dst, struct nlm_holder *src)
{
dst->exclusive = src->exclusive;
dst->svid = src->svid;
dst->oh = src->oh;
dst->l_offset = src->l_offset;
dst->l_len = src->l_len;
}
static void
nlm_convert_to_nlm4_res(struct nlm4_res *dst, struct nlm_res *src)
{
dst->cookie = src->cookie;
dst->stat.stat = (enum nlm4_stats) src->stat.stat;
}
enum clnt_stat
nlm_test_rpc(nlm4_testargs *args, nlm4_testres *res,
CLIENT *client, rpcvers_t vers)
{
if (vers == NLM4_VERS) {
return (nlm4_test_4(args, res, client));
} else {
nlm_testargs args1;
nlm_testres res1;
enum clnt_stat stat;
args1.cookie = args->cookie;
args1.exclusive = args->exclusive;
nlm_convert_to_nlm_lock(&args1.alock, &args->alock);
(void) memset(&res1, 0, sizeof (res1));
stat = nlm_test_1(&args1, &res1, client);
if (stat == RPC_SUCCESS) {
res->cookie = res1.cookie;
res->stat.stat = (enum nlm4_stats) res1.stat.stat;
if (res1.stat.stat == nlm_denied)
nlm_convert_to_nlm4_holder(
&res->stat.nlm4_testrply_u.holder,
&res1.stat.nlm_testrply_u.holder);
}
return (stat);
}
}
enum clnt_stat
nlm_lock_rpc(nlm4_lockargs *args, nlm4_res *res,
CLIENT *client, rpcvers_t vers)
{
if (vers == NLM4_VERS) {
return (nlm4_lock_4(args, res, client));
} else {
nlm_lockargs args1;
nlm_res res1;
enum clnt_stat stat;
args1.cookie = args->cookie;
args1.block = args->block;
args1.exclusive = args->exclusive;
nlm_convert_to_nlm_lock(&args1.alock, &args->alock);
args1.reclaim = args->reclaim;
args1.state = args->state;
(void) memset(&res1, 0, sizeof (res1));
stat = nlm_lock_1(&args1, &res1, client);
if (stat == RPC_SUCCESS) {
nlm_convert_to_nlm4_res(res, &res1);
}
return (stat);
}
}
enum clnt_stat
nlm_cancel_rpc(nlm4_cancargs *args, nlm4_res *res,
CLIENT *client, rpcvers_t vers)
{
if (vers == NLM4_VERS) {
return (nlm4_cancel_4(args, res, client));
} else {
nlm_cancargs args1;
nlm_res res1;
enum clnt_stat stat;
args1.cookie = args->cookie;
args1.block = args->block;
args1.exclusive = args->exclusive;
nlm_convert_to_nlm_lock(&args1.alock, &args->alock);
(void) memset(&res1, 0, sizeof (res1));
stat = nlm_cancel_1(&args1, &res1, client);
if (stat == RPC_SUCCESS) {
nlm_convert_to_nlm4_res(res, &res1);
}
return (stat);
}
}
enum clnt_stat
nlm_unlock_rpc(nlm4_unlockargs *args, nlm4_res *res,
CLIENT *client, rpcvers_t vers)
{
if (vers == NLM4_VERS) {
return (nlm4_unlock_4(args, res, client));
} else {
nlm_unlockargs args1;
nlm_res res1;
enum clnt_stat stat;
args1.cookie = args->cookie;
nlm_convert_to_nlm_lock(&args1.alock, &args->alock);
(void) memset(&res1, 0, sizeof (res1));
stat = nlm_unlock_1(&args1, &res1, client);
if (stat == RPC_SUCCESS) {
nlm_convert_to_nlm4_res(res, &res1);
}
return (stat);
}
}
enum clnt_stat
nlm_null_rpc(CLIENT *client, rpcvers_t vers)
{
if (vers == NLM4_VERS)
return (nlm4_null_4(NULL, NULL, client));
return (nlm_null_1(NULL, NULL, client));
}
/*
* Share reservations
*/
static void
nlm_convert_to_nlm_share(struct nlm_share *dst, struct nlm4_share *src)
{
dst->caller_name = src->caller_name;
dst->fh = src->fh;
dst->oh = src->oh;
dst->mode = src->mode;
dst->access = src->access;
}
static void
nlm_convert_to_nlm4_shres(struct nlm4_shareres *dst,
struct nlm_shareres *src)
{
dst->cookie = src->cookie;
dst->stat = (enum nlm4_stats) src->stat;
dst->sequence = src->sequence;
}
enum clnt_stat
nlm_share_rpc(nlm4_shareargs *args, nlm4_shareres *res,
CLIENT *client, rpcvers_t vers)
{
if (vers == NLM4_VERS) {
return (nlm4_share_4(args, res, client));
} else {
nlm_shareargs args3;
nlm_shareres res3;
enum clnt_stat stat;
args3.cookie = args->cookie;
nlm_convert_to_nlm_share(&args3.share, &args->share);
args3.reclaim = args->reclaim;
(void) memset(&res3, 0, sizeof (res3));
stat = nlm_share_3(&args3, &res3, client);
if (stat == RPC_SUCCESS) {
nlm_convert_to_nlm4_shres(res, &res3);
}
return (stat);
}
}
enum clnt_stat
nlm_unshare_rpc(nlm4_shareargs *args, nlm4_shareres *res,
CLIENT *client, rpcvers_t vers)
{
if (vers == NLM4_VERS) {
return (nlm4_unshare_4(args, res, client));
} else {
nlm_shareargs args3;
nlm_shareres res3;
enum clnt_stat stat;
args3.cookie = args->cookie;
nlm_convert_to_nlm_share(&args3.share, &args->share);
args3.reclaim = args->reclaim;
(void) memset(&res3, 0, sizeof (res3));
stat = nlm_unshare_3(&args3, &res3, client);
if (stat == RPC_SUCCESS) {
nlm_convert_to_nlm4_shres(res, &res3);
}
return (stat);
}
}
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