[linux.git] / fs / lockd / xdr4.c

// SPDX-License-Identifier: GPL-2.0
/*
 * linux/fs/lockd/xdr4.c
 *
 * XDR support for lockd and the lock client.
 *
 * Copyright (C) 1995, 1996 Olaf Kirch <[email protected]>
 * Copyright (C) 1999, Trond Myklebust <[email protected]>
 */

#include <linux/types.h>
#include <linux/sched.h>
#include <linux/nfs.h>

#include <linux/sunrpc/xdr.h>
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/svc.h>
#include <linux/sunrpc/stats.h>
#include <linux/lockd/lockd.h>

#include "svcxdr.h"

static inline loff_t
s64_to_loff_t(__s64 offset)
{
	return (loff_t)offset;
}


static inline s64
loff_t_to_s64(loff_t offset)
{
	s64 res;
	if (offset > NLM4_OFFSET_MAX)
		res = NLM4_OFFSET_MAX;
	else if (offset < -NLM4_OFFSET_MAX)
		res = -NLM4_OFFSET_MAX;
	else
		res = offset;
	return res;
}

/*
 * NLM file handles are defined by specification to be a variable-length
 * XDR opaque no longer than 1024 bytes. However, this implementation
 * limits their length to the size of an NFSv3 file handle.
 */
static bool
svcxdr_decode_fhandle(struct xdr_stream *xdr, struct nfs_fh *fh)
{
	__be32 *p;
	u32 len;

	if (xdr_stream_decode_u32(xdr, &len) < 0)
		return false;
	if (len > NFS_MAXFHSIZE)
		return false;

	p = xdr_inline_decode(xdr, len);
	if (!p)
		return false;
	fh->size = len;
	memcpy(fh->data, p, len);
	memset(fh->data + len, 0, sizeof(fh->data) - len);

	return true;
}

static bool
svcxdr_decode_lock(struct xdr_stream *xdr, struct nlm_lock *lock)
{
	struct file_lock *fl = &lock->fl;
	u64 len, start;
	s64 end;

	if (!svcxdr_decode_string(xdr, &lock->caller, &lock->len))
		return false;
	if (!svcxdr_decode_fhandle(xdr, &lock->fh))
		return false;
	if (!svcxdr_decode_owner(xdr, &lock->oh))
		return false;
	if (xdr_stream_decode_u32(xdr, &lock->svid) < 0)
		return false;
	if (xdr_stream_decode_u64(xdr, &start) < 0)
		return false;
	if (xdr_stream_decode_u64(xdr, &len) < 0)
		return false;

	locks_init_lock(fl);
	fl->fl_flags = FL_POSIX;
	fl->fl_type  = F_RDLCK;
	end = start + len - 1;
	fl->fl_start = s64_to_loff_t(start);
	if (len == 0 || end < 0)
		fl->fl_end = OFFSET_MAX;
	else
		fl->fl_end = s64_to_loff_t(end);

	return true;
}

static bool
svcxdr_encode_holder(struct xdr_stream *xdr, const struct nlm_lock *lock)
{
	const struct file_lock *fl = &lock->fl;
	s64 start, len;

	/* exclusive */
	if (xdr_stream_encode_bool(xdr, fl->fl_type != F_RDLCK) < 0)
		return false;
	if (xdr_stream_encode_u32(xdr, lock->svid) < 0)
		return false;
	if (!svcxdr_encode_owner(xdr, &lock->oh))
		return false;
	start = loff_t_to_s64(fl->fl_start);
	if (fl->fl_end == OFFSET_MAX)
		len = 0;
	else
		len = loff_t_to_s64(fl->fl_end - fl->fl_start + 1);
	if (xdr_stream_encode_u64(xdr, start) < 0)
		return false;
	if (xdr_stream_encode_u64(xdr, len) < 0)
		return false;

	return true;
}

static bool
svcxdr_encode_testrply(struct xdr_stream *xdr, const struct nlm_res *resp)
{
	if (!svcxdr_encode_stats(xdr, resp->status))
		return false;
	switch (resp->status) {
	case nlm_lck_denied:
		if (!svcxdr_encode_holder(xdr, &resp->lock))
			return false;
	}

	return true;
}


/*
 * Decode Call arguments
 */

int
nlm4svc_decode_void(struct svc_rqst *rqstp, __be32 *p)
{
	return 1;
}

int
nlm4svc_decode_testargs(struct svc_rqst *rqstp, __be32 *p)
{
	struct xdr_stream *xdr = &rqstp->rq_arg_stream;
	struct nlm_args *argp = rqstp->rq_argp;
	u32 exclusive;

	if (!svcxdr_decode_cookie(xdr, &argp->cookie))
		return 0;
	if (xdr_stream_decode_bool(xdr, &exclusive) < 0)
		return 0;
	if (!svcxdr_decode_lock(xdr, &argp->lock))
		return 0;
	if (exclusive)
		argp->lock.fl.fl_type = F_WRLCK;

	return 1;
}

int
nlm4svc_decode_lockargs(struct svc_rqst *rqstp, __be32 *p)
{
	struct xdr_stream *xdr = &rqstp->rq_arg_stream;
	struct nlm_args *argp = rqstp->rq_argp;
	u32 exclusive;

	if (!svcxdr_decode_cookie(xdr, &argp->cookie))
		return 0;
	if (xdr_stream_decode_bool(xdr, &argp->block) < 0)
		return 0;
	if (xdr_stream_decode_bool(xdr, &exclusive) < 0)
		return 0;
	if (!svcxdr_decode_lock(xdr, &argp->lock))
		return 0;
	if (exclusive)
		argp->lock.fl.fl_type = F_WRLCK;
	if (xdr_stream_decode_bool(xdr, &argp->reclaim) < 0)
		return 0;
	if (xdr_stream_decode_u32(xdr, &argp->state) < 0)
		return 0;
	argp->monitor = 1;		/* monitor client by default */

	return 1;
}

int
nlm4svc_decode_cancargs(struct svc_rqst *rqstp, __be32 *p)
{
	struct xdr_stream *xdr = &rqstp->rq_arg_stream;
	struct nlm_args *argp = rqstp->rq_argp;
	u32 exclusive;

	if (!svcxdr_decode_cookie(xdr, &argp->cookie))
		return 0;
	if (xdr_stream_decode_bool(xdr, &argp->block) < 0)
		return 0;
	if (xdr_stream_decode_bool(xdr, &exclusive) < 0)
		return 0;
	if (!svcxdr_decode_lock(xdr, &argp->lock))
		return 0;
	if (exclusive)
		argp->lock.fl.fl_type = F_WRLCK;
	return 1;
}

int
nlm4svc_decode_unlockargs(struct svc_rqst *rqstp, __be32 *p)
{
	struct xdr_stream *xdr = &rqstp->rq_arg_stream;
	struct nlm_args *argp = rqstp->rq_argp;

	if (!svcxdr_decode_cookie(xdr, &argp->cookie))
		return 0;
	if (!svcxdr_decode_lock(xdr, &argp->lock))
		return 0;
	argp->lock.fl.fl_type = F_UNLCK;

	return 1;
}

int
nlm4svc_decode_res(struct svc_rqst *rqstp, __be32 *p)
{
	struct xdr_stream *xdr = &rqstp->rq_arg_stream;
	struct nlm_res *resp = rqstp->rq_argp;

	if (!svcxdr_decode_cookie(xdr, &resp->cookie))
		return 0;
	if (!svcxdr_decode_stats(xdr, &resp->status))
		return 0;

	return 1;
}

int
nlm4svc_decode_reboot(struct svc_rqst *rqstp, __be32 *p)
{
	struct xdr_stream *xdr = &rqstp->rq_arg_stream;
	struct nlm_reboot *argp = rqstp->rq_argp;
	u32 len;

	if (xdr_stream_decode_u32(xdr, &len) < 0)
		return 0;
	if (len > SM_MAXSTRLEN)
		return 0;
	p = xdr_inline_decode(xdr, len);
	if (!p)
		return 0;
	argp->len = len;
	argp->mon = (char *)p;
	if (xdr_stream_decode_u32(xdr, &argp->state) < 0)
		return 0;
	p = xdr_inline_decode(xdr, SM_PRIV_SIZE);
	if (!p)
		return 0;
	memcpy(&argp->priv.data, p, sizeof(argp->priv.data));

	return 1;
}

int
nlm4svc_decode_shareargs(struct svc_rqst *rqstp, __be32 *p)
{
	struct xdr_stream *xdr = &rqstp->rq_arg_stream;
	struct nlm_args *argp = rqstp->rq_argp;
	struct nlm_lock	*lock = &argp->lock;

	memset(lock, 0, sizeof(*lock));
	locks_init_lock(&lock->fl);
	lock->svid = ~(u32)0;

	if (!svcxdr_decode_cookie(xdr, &argp->cookie))
		return 0;
	if (!svcxdr_decode_string(xdr, &lock->caller, &lock->len))
		return 0;
	if (!svcxdr_decode_fhandle(xdr, &lock->fh))
		return 0;
	if (!svcxdr_decode_owner(xdr, &lock->oh))
		return 0;
	/* XXX: Range checks are missing in the original code */
	if (xdr_stream_decode_u32(xdr, &argp->fsm_mode) < 0)
		return 0;
	if (xdr_stream_decode_u32(xdr, &argp->fsm_access) < 0)
		return 0;

	return 1;
}

int
nlm4svc_decode_notify(struct svc_rqst *rqstp, __be32 *p)
{
	struct xdr_stream *xdr = &rqstp->rq_arg_stream;
	struct nlm_args *argp = rqstp->rq_argp;
	struct nlm_lock	*lock = &argp->lock;

	if (!svcxdr_decode_string(xdr, &lock->caller, &lock->len))
		return 0;
	if (xdr_stream_decode_u32(xdr, &argp->state) < 0)
		return 0;

	return 1;
}


/*
 * Encode Reply results
 */

int
nlm4svc_encode_void(struct svc_rqst *rqstp, __be32 *p)
{
	return 1;
}

int
nlm4svc_encode_testres(struct svc_rqst *rqstp, __be32 *p)
{
	struct xdr_stream *xdr = &rqstp->rq_res_stream;
	struct nlm_res *resp = rqstp->rq_resp;

	return svcxdr_encode_cookie(xdr, &resp->cookie) &&
		svcxdr_encode_testrply(xdr, resp);
}

int
nlm4svc_encode_res(struct svc_rqst *rqstp, __be32 *p)
{
	struct xdr_stream *xdr = &rqstp->rq_res_stream;
	struct nlm_res *resp = rqstp->rq_resp;

	return svcxdr_encode_cookie(xdr, &resp->cookie) &&
		svcxdr_encode_stats(xdr, resp->status);
}

int
nlm4svc_encode_shareres(struct svc_rqst *rqstp, __be32 *p)
{
	struct xdr_stream *xdr = &rqstp->rq_res_stream;
	struct nlm_res *resp = rqstp->rq_resp;

	if (!svcxdr_encode_cookie(xdr, &resp->cookie))
		return 0;
	if (!svcxdr_encode_stats(xdr, resp->status))
		return 0;
	/* sequence */
	if (xdr_stream_encode_u32(xdr, 0) < 0)
		return 0;

	return 1;
}
Commit	Line	Data
b2441318	1	// SPDX-License-Identifier: GPL-2.0
1da177e4 LT	2	/*
	3	* linux/fs/lockd/xdr4.c
	4	*
	5	* XDR support for lockd and the lock client.
	6	*
	7	* Copyright (C) 1995, 1996 Olaf Kirch <[email protected]>
	8	* Copyright (C) 1999, Trond Myklebust <[email protected]>
	9	*/
	10
	11	#include <linux/types.h>
	12	#include <linux/sched.h>
1da177e4 LT	13	#include <linux/nfs.h>
	14
	15	#include <linux/sunrpc/xdr.h>
	16	#include <linux/sunrpc/clnt.h>
	17	#include <linux/sunrpc/svc.h>
	18	#include <linux/sunrpc/stats.h>
	19	#include <linux/lockd/lockd.h>
1da177e4	20
7956521a CL	21	#include "svcxdr.h"
7956521a CL	22
1da177e4 LT	23	static inline loff_t
	24	s64_to_loff_t(__s64 offset)
	25	{
	26	return (loff_t)offset;
	27	}
	28
	29
	30	static inline s64
	31	loff_t_to_s64(loff_t offset)
	32	{
	33	s64 res;
	34	if (offset > NLM4_OFFSET_MAX)
	35	res = NLM4_OFFSET_MAX;
	36	else if (offset < -NLM4_OFFSET_MAX)
	37	res = -NLM4_OFFSET_MAX;
	38	else
	39	res = offset;
	40	return res;
	41	}
	42
345b4159 CL	43	/*
	44	* NLM file handles are defined by specification to be a variable-length
	45	* XDR opaque no longer than 1024 bytes. However, this implementation
	46	* limits their length to the size of an NFSv3 file handle.
	47	*/
	48	static bool
	49	svcxdr_decode_fhandle(struct xdr_stream xdr, struct nfs_fh fh)
	50	{
	51	__be32 *p;
	52	u32 len;
	53
	54	if (xdr_stream_decode_u32(xdr, &len) < 0)
	55	return false;
	56	if (len > NFS_MAXFHSIZE)
	57	return false;
	58
	59	p = xdr_inline_decode(xdr, len);
	60	if (!p)
	61	return false;
	62	fh->size = len;
	63	memcpy(fh->data, p, len);
	64	memset(fh->data + len, 0, sizeof(fh->data) - len);
	65
	66	return true;
	67	}
	68
345b4159 CL	69	static bool
	70	svcxdr_decode_lock(struct xdr_stream xdr, struct nlm_lock lock)
	71	{
	72	struct file_lock *fl = &lock->fl;
	73	u64 len, start;
	74	s64 end;
	75
	76	if (!svcxdr_decode_string(xdr, &lock->caller, &lock->len))
	77	return false;
	78	if (!svcxdr_decode_fhandle(xdr, &lock->fh))
	79	return false;
	80	if (!svcxdr_decode_owner(xdr, &lock->oh))
	81	return false;
	82	if (xdr_stream_decode_u32(xdr, &lock->svid) < 0)
	83	return false;
	84	if (xdr_stream_decode_u64(xdr, &start) < 0)
	85	return false;
	86	if (xdr_stream_decode_u64(xdr, &len) < 0)
	87	return false;
	88
	89	locks_init_lock(fl);
	90	fl->fl_flags = FL_POSIX;
	91	fl->fl_type = F_RDLCK;
	92	end = start + len - 1;
	93	fl->fl_start = s64_to_loff_t(start);
	94	if (len == 0 \|\| end < 0)
	95	fl->fl_end = OFFSET_MAX;
	96	else
	97	fl->fl_end = s64_to_loff_t(end);
	98
	99	return true;
	100	}
	101
1beef147 CL	102	static bool
1beef147 CL	103	svcxdr_encode_holder(struct xdr_stream xdr, const struct nlm_lock lock)
1da177e4	104	{
1beef147 CL	105	const struct file_lock *fl = &lock->fl;
1beef147 CL	106	s64 start, len;
1da177e4	107
1beef147 CL	108	/* exclusive */
	109	if (xdr_stream_encode_bool(xdr, fl->fl_type != F_RDLCK) < 0)
	110	return false;
	111	if (xdr_stream_encode_u32(xdr, lock->svid) < 0)
	112	return false;
	113	if (!svcxdr_encode_owner(xdr, &lock->oh))
	114	return false;
	115	start = loff_t_to_s64(fl->fl_start);
	116	if (fl->fl_end == OFFSET_MAX)
	117	len = 0;
	118	else
	119	len = loff_t_to_s64(fl->fl_end - fl->fl_start + 1);
	120	if (xdr_stream_encode_u64(xdr, start) < 0)
	121	return false;
	122	if (xdr_stream_encode_u64(xdr, len) < 0)
	123	return false;
	124
	125	return true;
	126	}
1da177e4	127
1beef147 CL	128	static bool
	129	svcxdr_encode_testrply(struct xdr_stream xdr, const struct nlm_res resp)
	130	{
	131	if (!svcxdr_encode_stats(xdr, resp->status))
	132	return false;
	133	switch (resp->status) {
	134	case nlm_lck_denied:
	135	if (!svcxdr_encode_holder(xdr, &resp->lock))
	136	return false;
1da177e4 LT	137	}
1da177e4 LT	138
1beef147	139	return true;
1da177e4 LT	140	}
	141
	142
	143	/*
7956521a	144	* Decode Call arguments
1da177e4	145	*/
7956521a CL	146
	147	int
	148	nlm4svc_decode_void(struct svc_rqst rqstp, __be32 p)
	149	{
	150	return 1;
	151	}
	152
1da177e4	153	int
026fec7e	154	nlm4svc_decode_testargs(struct svc_rqst rqstp, __be32 p)
1da177e4	155	{
345b4159	156	struct xdr_stream *xdr = &rqstp->rq_arg_stream;
026fec7e	157	struct nlm_args *argp = rqstp->rq_argp;
345b4159	158	u32 exclusive;
1da177e4	159
345b4159	160	if (!svcxdr_decode_cookie(xdr, &argp->cookie))
1da177e4	161	return 0;
345b4159 CL	162	if (xdr_stream_decode_bool(xdr, &exclusive) < 0)
	163	return 0;
	164	if (!svcxdr_decode_lock(xdr, &argp->lock))
1da177e4 LT	165	return 0;
	166	if (exclusive)
	167	argp->lock.fl.fl_type = F_WRLCK;
	168
345b4159	169	return 1;
1da177e4 LT	170	}
1da177e4 LT	171
1da177e4	172	int
026fec7e	173	nlm4svc_decode_lockargs(struct svc_rqst rqstp, __be32 p)
1da177e4	174	{
0e5977af	175	struct xdr_stream *xdr = &rqstp->rq_arg_stream;
026fec7e	176	struct nlm_args *argp = rqstp->rq_argp;
0e5977af	177	u32 exclusive;
1da177e4	178
0e5977af	179	if (!svcxdr_decode_cookie(xdr, &argp->cookie))
1da177e4	180	return 0;
0e5977af CL	181	if (xdr_stream_decode_bool(xdr, &argp->block) < 0)
	182	return 0;
	183	if (xdr_stream_decode_bool(xdr, &exclusive) < 0)
	184	return 0;
	185	if (!svcxdr_decode_lock(xdr, &argp->lock))
1da177e4 LT	186	return 0;
	187	if (exclusive)
	188	argp->lock.fl.fl_type = F_WRLCK;
0e5977af CL	189	if (xdr_stream_decode_bool(xdr, &argp->reclaim) < 0)
	190	return 0;
	191	if (xdr_stream_decode_u32(xdr, &argp->state) < 0)
	192	return 0;
1da177e4 LT	193	argp->monitor = 1; /* monitor client by default */
1da177e4 LT	194
0e5977af CL	195	return 1;
	196	}
	197
	198	int
1e1f38dc	199	nlm4svc_decode_cancargs(struct svc_rqst rqstp, __be32 p)
0e5977af	200	{
1e1f38dc CL	201	struct xdr_stream *xdr = &rqstp->rq_arg_stream;
	202	struct nlm_args *argp = rqstp->rq_argp;
	203	u32 exclusive;
0e5977af	204
1e1f38dc	205	if (!svcxdr_decode_cookie(xdr, &argp->cookie))
0e5977af	206	return 0;
1e1f38dc CL	207	if (xdr_stream_decode_bool(xdr, &argp->block) < 0)
	208	return 0;
	209	if (xdr_stream_decode_bool(xdr, &exclusive) < 0)
	210	return 0;
	211	if (!svcxdr_decode_lock(xdr, &argp->lock))
	212	return 0;
	213	if (exclusive)
	214	argp->lock.fl.fl_type = F_WRLCK;
	215	return 1;
1da177e4 LT	216	}
	217
	218	int
d76d8c25	219	nlm4svc_decode_unlockargs(struct svc_rqst rqstp, __be32 p)
1da177e4	220	{
d76d8c25 CL	221	struct xdr_stream *xdr = &rqstp->rq_arg_stream;
d76d8c25 CL	222	struct nlm_args *argp = rqstp->rq_argp;
1da177e4	223
d76d8c25	224	if (!svcxdr_decode_cookie(xdr, &argp->cookie))
1da177e4	225	return 0;
d76d8c25 CL	226	if (!svcxdr_decode_lock(xdr, &argp->lock))
	227	return 0;
	228	argp->lock.fl.fl_type = F_UNLCK;
	229
	230	return 1;
1da177e4 LT	231	}
1da177e4 LT	232
b4c24b5a CL	233	int
	234	nlm4svc_decode_res(struct svc_rqst rqstp, __be32 p)
	235	{
	236	struct xdr_stream *xdr = &rqstp->rq_arg_stream;
	237	struct nlm_res *resp = rqstp->rq_argp;
	238
	239	if (!svcxdr_decode_cookie(xdr, &resp->cookie))
	240	return 0;
	241	if (!svcxdr_decode_stats(xdr, &resp->status))
	242	return 0;
	243
	244	return 1;
	245	}
	246
bc3665fd CL	247	int
	248	nlm4svc_decode_reboot(struct svc_rqst rqstp, __be32 p)
	249	{
	250	struct xdr_stream *xdr = &rqstp->rq_arg_stream;
	251	struct nlm_reboot *argp = rqstp->rq_argp;
	252	u32 len;
	253
	254	if (xdr_stream_decode_u32(xdr, &len) < 0)
	255	return 0;
	256	if (len > SM_MAXSTRLEN)
	257	return 0;
	258	p = xdr_inline_decode(xdr, len);
	259	if (!p)
	260	return 0;
	261	argp->len = len;
	262	argp->mon = (char *)p;
	263	if (xdr_stream_decode_u32(xdr, &argp->state) < 0)
	264	return 0;
	265	p = xdr_inline_decode(xdr, SM_PRIV_SIZE);
	266	if (!p)
	267	return 0;
	268	memcpy(&argp->priv.data, p, sizeof(argp->priv.data));
	269
	270	return 1;
	271	}
	272
1da177e4	273	int
026fec7e	274	nlm4svc_decode_shareargs(struct svc_rqst rqstp, __be32 p)
1da177e4	275	{
7cf96b6d	276	struct xdr_stream *xdr = &rqstp->rq_arg_stream;
026fec7e	277	struct nlm_args *argp = rqstp->rq_argp;
1da177e4 LT	278	struct nlm_lock *lock = &argp->lock;
	279
	280	memset(lock, 0, sizeof(*lock));
	281	locks_init_lock(&lock->fl);
7cf96b6d	282	lock->svid = ~(u32)0;
1da177e4	283
7cf96b6d	284	if (!svcxdr_decode_cookie(xdr, &argp->cookie))
1da177e4	285	return 0;
7cf96b6d CL	286	if (!svcxdr_decode_string(xdr, &lock->caller, &lock->len))
	287	return 0;
	288	if (!svcxdr_decode_fhandle(xdr, &lock->fh))
	289	return 0;
	290	if (!svcxdr_decode_owner(xdr, &lock->oh))
	291	return 0;
	292	/* XXX: Range checks are missing in the original code */
	293	if (xdr_stream_decode_u32(xdr, &argp->fsm_mode) < 0)
	294	return 0;
	295	if (xdr_stream_decode_u32(xdr, &argp->fsm_access) < 0)
	296	return 0;
	297
	298	return 1;
	299	}
	300
3049e974 CL	301	int
	302	nlm4svc_decode_notify(struct svc_rqst rqstp, __be32 p)
	303	{
	304	struct xdr_stream *xdr = &rqstp->rq_arg_stream;
	305	struct nlm_args *argp = rqstp->rq_argp;
	306	struct nlm_lock *lock = &argp->lock;
	307
	308	if (!svcxdr_decode_string(xdr, &lock->caller, &lock->len))
	309	return 0;
	310	if (xdr_stream_decode_u32(xdr, &argp->state) < 0)
	311	return 0;
	312
	313	return 1;
	314	}
	315
ec757e42 CL	316
	317	/*
	318	* Encode Reply results
	319	*/
	320
	321	int
	322	nlm4svc_encode_void(struct svc_rqst rqstp, __be32 p)
	323	{
	324	return 1;
	325	}
	326
7cf96b6d CL	327	int
	328	nlm4svc_encode_testres(struct svc_rqst rqstp, __be32 p)
	329	{
1beef147	330	struct xdr_stream *xdr = &rqstp->rq_res_stream;
7cf96b6d CL	331	struct nlm_res *resp = rqstp->rq_resp;
7cf96b6d CL	332
1beef147 CL	333	return svcxdr_encode_cookie(xdr, &resp->cookie) &&
1beef147 CL	334	svcxdr_encode_testrply(xdr, resp);
1da177e4 LT	335	}
	336
	337	int
447c14d4	338	nlm4svc_encode_res(struct svc_rqst rqstp, __be32 p)
1da177e4	339	{
447c14d4	340	struct xdr_stream *xdr = &rqstp->rq_res_stream;
63f8de37 CH	341	struct nlm_res *resp = rqstp->rq_resp;
63f8de37 CH	342
447c14d4 CL	343	return svcxdr_encode_cookie(xdr, &resp->cookie) &&
447c14d4 CL	344	svcxdr_encode_stats(xdr, resp->status);
1da177e4 LT	345	}
	346
	347	int
447c14d4	348	nlm4svc_encode_shareres(struct svc_rqst rqstp, __be32 p)
1da177e4	349	{
0ff5b50a	350	struct xdr_stream *xdr = &rqstp->rq_res_stream;
63f8de37 CH	351	struct nlm_res *resp = rqstp->rq_resp;
63f8de37 CH	352
0ff5b50a	353	if (!svcxdr_encode_cookie(xdr, &resp->cookie))
1da177e4	354	return 0;
0ff5b50a CL	355	if (!svcxdr_encode_stats(xdr, resp->status))
	356	return 0;
	357	/* sequence */
	358	if (xdr_stream_encode_u32(xdr, 0) < 0)
	359	return 0;
	360
	361	return 1;
1da177e4	362	}