[net-next-2.6.git] / fs / nfsd / nfs2acl.c

/*
 * linux/fs/nfsd/nfs2acl.c
 *
 * Process version 2 NFSACL requests.
 *
 * Copyright (C) 2002-2003 Andreas Gruenbacher <agruen@suse.de>
 */

#include <linux/sunrpc/svc.h>
#include <linux/nfs.h>
#include <linux/nfsd/nfsd.h>
#include <linux/nfsd/cache.h>
#include <linux/nfsd/xdr.h>
#include <linux/nfsd/xdr3.h>
#include <linux/posix_acl.h>
#include <linux/nfsacl.h>

#define NFSDDBG_FACILITY		NFSDDBG_PROC
#define RETURN_STATUS(st)	{ resp->status = (st); return (st); }

/*
 * NULL call.
 */
static __be32
nfsacld_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
{
	return nfs_ok;
}

/*
 * Get the Access and/or Default ACL of a file.
 */
static __be32 nfsacld_proc_getacl(struct svc_rqst * rqstp,
		struct nfsd3_getaclargs *argp, struct nfsd3_getaclres *resp)
{
	svc_fh *fh;
	struct posix_acl *acl;
	__be32 nfserr = 0;

	dprintk("nfsd: GETACL(2acl)   %s\n", SVCFH_fmt(&argp->fh));

	fh = fh_copy(&resp->fh, &argp->fh);
	nfserr = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_NOP);
	if (nfserr)
		RETURN_STATUS(nfserr);

	if (argp->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT))
		RETURN_STATUS(nfserr_inval);
	resp->mask = argp->mask;

	if (resp->mask & (NFS_ACL|NFS_ACLCNT)) {
		acl = nfsd_get_posix_acl(fh, ACL_TYPE_ACCESS);
		if (IS_ERR(acl)) {
			int err = PTR_ERR(acl);

			if (err == -ENODATA || err == -EOPNOTSUPP)
				acl = NULL;
			else {
				nfserr = nfserrno(err);
				goto fail;
			}
		}
		if (acl == NULL) {
			/* Solaris returns the inode's minimum ACL. */

			struct inode *inode = fh->fh_dentry->d_inode;
			acl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL);
		}
		resp->acl_access = acl;
	}
	if (resp->mask & (NFS_DFACL|NFS_DFACLCNT)) {
		/* Check how Solaris handles requests for the Default ACL
		   of a non-directory! */

		acl = nfsd_get_posix_acl(fh, ACL_TYPE_DEFAULT);
		if (IS_ERR(acl)) {
			int err = PTR_ERR(acl);

			if (err == -ENODATA || err == -EOPNOTSUPP)
				acl = NULL;
			else {
				nfserr = nfserrno(err);
				goto fail;
			}
		}
		resp->acl_default = acl;
	}

	/* resp->acl_{access,default} are released in nfssvc_release_getacl. */
	RETURN_STATUS(0);

fail:
	posix_acl_release(resp->acl_access);
	posix_acl_release(resp->acl_default);
	RETURN_STATUS(nfserr);
}

/*
 * Set the Access and/or Default ACL of a file.
 */
static __be32 nfsacld_proc_setacl(struct svc_rqst * rqstp,
		struct nfsd3_setaclargs *argp,
		struct nfsd_attrstat *resp)
{
	svc_fh *fh;
	__be32 nfserr = 0;

	dprintk("nfsd: SETACL(2acl)   %s\n", SVCFH_fmt(&argp->fh));

	fh = fh_copy(&resp->fh, &argp->fh);
	nfserr = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_SATTR);

	if (!nfserr) {
		nfserr = nfserrno( nfsd_set_posix_acl(
			fh, ACL_TYPE_ACCESS, argp->acl_access) );
	}
	if (!nfserr) {
		nfserr = nfserrno( nfsd_set_posix_acl(
			fh, ACL_TYPE_DEFAULT, argp->acl_default) );
	}

	/* argp->acl_{access,default} may have been allocated in
	   nfssvc_decode_setaclargs. */
	posix_acl_release(argp->acl_access);
	posix_acl_release(argp->acl_default);
	return nfserr;
}

/*
 * Check file attributes
 */
static __be32 nfsacld_proc_getattr(struct svc_rqst * rqstp,
		struct nfsd_fhandle *argp, struct nfsd_attrstat *resp)
{
	dprintk("nfsd: GETATTR  %s\n", SVCFH_fmt(&argp->fh));

	fh_copy(&resp->fh, &argp->fh);
	return fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_NOP);
}

/*
 * Check file access
 */
static __be32 nfsacld_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessargs *argp,
		struct nfsd3_accessres *resp)
{
	__be32 nfserr;

	dprintk("nfsd: ACCESS(2acl)   %s 0x%x\n",
			SVCFH_fmt(&argp->fh),
			argp->access);

	fh_copy(&resp->fh, &argp->fh);
	resp->access = argp->access;
	nfserr = nfsd_access(rqstp, &resp->fh, &resp->access, NULL);
	return nfserr;
}

/*
 * XDR decode functions
 */
static int nfsaclsvc_decode_getaclargs(struct svc_rqst *rqstp, __be32 *p,
		struct nfsd3_getaclargs *argp)
{
	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
		return 0;
	argp->mask = ntohl(*p); p++;

	return xdr_argsize_check(rqstp, p);
}


static int nfsaclsvc_decode_setaclargs(struct svc_rqst *rqstp, __be32 *p,
		struct nfsd3_setaclargs *argp)
{
	struct kvec *head = rqstp->rq_arg.head;
	unsigned int base;
	int n;

	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
		return 0;
	argp->mask = ntohl(*p++);
	if (argp->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT) ||
	    !xdr_argsize_check(rqstp, p))
		return 0;

	base = (char *)p - (char *)head->iov_base;
	n = nfsacl_decode(&rqstp->rq_arg, base, NULL,
			  (argp->mask & NFS_ACL) ?
			  &argp->acl_access : NULL);
	if (n > 0)
		n = nfsacl_decode(&rqstp->rq_arg, base + n, NULL,
				  (argp->mask & NFS_DFACL) ?
				  &argp->acl_default : NULL);
	return (n > 0);
}

static int nfsaclsvc_decode_fhandleargs(struct svc_rqst *rqstp, __be32 *p,
		struct nfsd_fhandle *argp)
{
	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
		return 0;
	return xdr_argsize_check(rqstp, p);
}

static int nfsaclsvc_decode_accessargs(struct svc_rqst *rqstp, __be32 *p,
		struct nfsd3_accessargs *argp)
{
	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
		return 0;
	argp->access = ntohl(*p++);

	return xdr_argsize_check(rqstp, p);
}

/*
 * XDR encode functions
 */

/*
 * There must be an encoding function for void results so svc_process
 * will work properly.
 */
int
nfsaclsvc_encode_voidres(struct svc_rqst *rqstp, __be32 *p, void *dummy)
{
	return xdr_ressize_check(rqstp, p);
}

/* GETACL */
static int nfsaclsvc_encode_getaclres(struct svc_rqst *rqstp, __be32 *p,
		struct nfsd3_getaclres *resp)
{
	struct dentry *dentry = resp->fh.fh_dentry;
	struct inode *inode;
	struct kvec *head = rqstp->rq_res.head;
	unsigned int base;
	int n;
	int w;

	/*
	 * Since this is version 2, the check for nfserr in
	 * nfsd_dispatch actually ensures the following cannot happen.
	 * However, it seems fragile to depend on that.
	 */
	if (dentry == NULL || dentry->d_inode == NULL)
		return 0;
	inode = dentry->d_inode;

	p = nfs2svc_encode_fattr(rqstp, p, &resp->fh);
	*p++ = htonl(resp->mask);
	if (!xdr_ressize_check(rqstp, p))
		return 0;
	base = (char *)p - (char *)head->iov_base;

	rqstp->rq_res.page_len = w = nfsacl_size(
		(resp->mask & NFS_ACL)   ? resp->acl_access  : NULL,
		(resp->mask & NFS_DFACL) ? resp->acl_default : NULL);
	while (w > 0) {
		if (!rqstp->rq_respages[rqstp->rq_resused++])
			return 0;
		w -= PAGE_SIZE;
	}

	n = nfsacl_encode(&rqstp->rq_res, base, inode,
			  resp->acl_access,
			  resp->mask & NFS_ACL, 0);
	if (n > 0)
		n = nfsacl_encode(&rqstp->rq_res, base + n, inode,
				  resp->acl_default,
				  resp->mask & NFS_DFACL,
				  NFS_ACL_DEFAULT);
	if (n <= 0)
		return 0;
	return 1;
}

static int nfsaclsvc_encode_attrstatres(struct svc_rqst *rqstp, __be32 *p,
		struct nfsd_attrstat *resp)
{
	p = nfs2svc_encode_fattr(rqstp, p, &resp->fh);
	return xdr_ressize_check(rqstp, p);
}

/* ACCESS */
static int nfsaclsvc_encode_accessres(struct svc_rqst *rqstp, __be32 *p,
		struct nfsd3_accessres *resp)
{
	p = nfs2svc_encode_fattr(rqstp, p, &resp->fh);
	*p++ = htonl(resp->access);
	return xdr_ressize_check(rqstp, p);
}

/*
 * XDR release functions
 */
static int nfsaclsvc_release_getacl(struct svc_rqst *rqstp, __be32 *p,
		struct nfsd3_getaclres *resp)
{
	fh_put(&resp->fh);
	posix_acl_release(resp->acl_access);
	posix_acl_release(resp->acl_default);
	return 1;
}

static int nfsaclsvc_release_attrstat(struct svc_rqst *rqstp, __be32 *p,
		struct nfsd_attrstat *resp)
{
	fh_put(&resp->fh);
	return 1;
}

static int nfsaclsvc_release_access(struct svc_rqst *rqstp, __be32 *p,
               struct nfsd3_accessres *resp)
{
       fh_put(&resp->fh);
       return 1;
}

#define nfsaclsvc_decode_voidargs	NULL
#define nfsaclsvc_release_void		NULL
#define nfsd3_fhandleargs	nfsd_fhandle
#define nfsd3_attrstatres	nfsd_attrstat
#define nfsd3_voidres		nfsd3_voidargs
struct nfsd3_voidargs { int dummy; };

#define PROC(name, argt, rest, relt, cache, respsize)	\
 { (svc_procfunc) nfsacld_proc_##name,		\
   (kxdrproc_t) nfsaclsvc_decode_##argt##args,	\
   (kxdrproc_t) nfsaclsvc_encode_##rest##res,	\
   (kxdrproc_t) nfsaclsvc_release_##relt,		\
   sizeof(struct nfsd3_##argt##args),		\
   sizeof(struct nfsd3_##rest##res),		\
   0,						\
   cache,					\
   respsize,					\
 }

#define ST 1		/* status*/
#define AT 21		/* attributes */
#define pAT (1+AT)	/* post attributes - conditional */
#define ACL (1+NFS_ACL_MAX_ENTRIES*3)  /* Access Control List */

static struct svc_procedure		nfsd_acl_procedures2[] = {
  PROC(null,	void,		void,		void,	  RC_NOCACHE, ST),
  PROC(getacl,	getacl,		getacl,		getacl,	  RC_NOCACHE, ST+1+2*(1+ACL)),
  PROC(setacl,	setacl,		attrstat,	attrstat, RC_NOCACHE, ST+AT),
  PROC(getattr, fhandle,	attrstat,	attrstat, RC_NOCACHE, ST+AT),
  PROC(access,	access,		access,		access,   RC_NOCACHE, ST+AT+1),
};

struct svc_version	nfsd_acl_version2 = {
		.vs_vers	= 2,
		.vs_nproc	= 5,
		.vs_proc	= nfsd_acl_procedures2,
		.vs_dispatch	= nfsd_dispatch,
		.vs_xdrsize	= NFS3_SVC_XDRSIZE,
		.vs_hidden	= 0,
};
Commit	Line	Data
a257cdd0	1	/*
f30c2269	2	* linux/fs/nfsd/nfs2acl.c
a257cdd0 AG	3	*
	4	* Process version 2 NFSACL requests.
	5	*
	6	* Copyright (C) 2002-2003 Andreas Gruenbacher <agruen@suse.de>
	7	*/
	8
	9	#include <linux/sunrpc/svc.h>
	10	#include <linux/nfs.h>
	11	#include <linux/nfsd/nfsd.h>
	12	#include <linux/nfsd/cache.h>
	13	#include <linux/nfsd/xdr.h>
	14	#include <linux/nfsd/xdr3.h>
	15	#include <linux/posix_acl.h>
	16	#include <linux/nfsacl.h>
	17
	18	#define NFSDDBG_FACILITY NFSDDBG_PROC
	19	#define RETURN_STATUS(st) { resp->status = (st); return (st); }
	20
	21	/*
	22	* NULL call.
	23	*/
7111c66e	24	static __be32
a257cdd0 AG	25	nfsacld_proc_null(struct svc_rqst rqstp, void argp, void *resp)
	26	{
	27	return nfs_ok;
	28	}
	29
	30	/*
	31	* Get the Access and/or Default ACL of a file.
	32	*/
7111c66e	33	static __be32 nfsacld_proc_getacl(struct svc_rqst * rqstp,
a257cdd0 AG	34	struct nfsd3_getaclargs argp, struct nfsd3_getaclres resp)
	35	{
	36	svc_fh *fh;
	37	struct posix_acl *acl;
c4d987ba	38	__be32 nfserr = 0;
a257cdd0 AG	39
	40	dprintk("nfsd: GETACL(2acl) %s\n", SVCFH_fmt(&argp->fh));
	41
	42	fh = fh_copy(&resp->fh, &argp->fh);
8837abca MS	43	nfserr = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_NOP);
8837abca MS	44	if (nfserr)
ac8587dc	45	RETURN_STATUS(nfserr);
a257cdd0 AG	46
	47	if (argp->mask & ~(NFS_ACL\|NFS_ACLCNT\|NFS_DFACL\|NFS_DFACLCNT))
	48	RETURN_STATUS(nfserr_inval);
	49	resp->mask = argp->mask;
	50
	51	if (resp->mask & (NFS_ACL\|NFS_ACLCNT)) {
	52	acl = nfsd_get_posix_acl(fh, ACL_TYPE_ACCESS);
	53	if (IS_ERR(acl)) {
	54	int err = PTR_ERR(acl);
	55
	56	if (err == -ENODATA \|\| err == -EOPNOTSUPP)
	57	acl = NULL;
	58	else {
	59	nfserr = nfserrno(err);
	60	goto fail;
	61	}
	62	}
	63	if (acl == NULL) {
	64	/* Solaris returns the inode's minimum ACL. */
	65
	66	struct inode *inode = fh->fh_dentry->d_inode;
	67	acl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL);
	68	}
	69	resp->acl_access = acl;
	70	}
	71	if (resp->mask & (NFS_DFACL\|NFS_DFACLCNT)) {
	72	/* Check how Solaris handles requests for the Default ACL
	73	of a non-directory! */
	74
	75	acl = nfsd_get_posix_acl(fh, ACL_TYPE_DEFAULT);
	76	if (IS_ERR(acl)) {
	77	int err = PTR_ERR(acl);
	78
	79	if (err == -ENODATA \|\| err == -EOPNOTSUPP)
	80	acl = NULL;
	81	else {
	82	nfserr = nfserrno(err);
	83	goto fail;
	84	}
	85	}
	86	resp->acl_default = acl;
	87	}
	88
	89	/* resp->acl_{access,default} are released in nfssvc_release_getacl. */
	90	RETURN_STATUS(0);
	91
	92	fail:
	93	posix_acl_release(resp->acl_access);
	94	posix_acl_release(resp->acl_default);
	95	RETURN_STATUS(nfserr);
	96	}
	97
	98	/*
	99	* Set the Access and/or Default ACL of a file.
	100	*/
7111c66e	101	static __be32 nfsacld_proc_setacl(struct svc_rqst * rqstp,
a257cdd0 AG	102	struct nfsd3_setaclargs *argp,
	103	struct nfsd_attrstat *resp)
	104	{
	105	svc_fh *fh;
c4d987ba	106	__be32 nfserr = 0;
a257cdd0 AG	107
	108	dprintk("nfsd: SETACL(2acl) %s\n", SVCFH_fmt(&argp->fh));
	109
	110	fh = fh_copy(&resp->fh, &argp->fh);
8837abca	111	nfserr = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_SATTR);
a257cdd0 AG	112
	113	if (!nfserr) {
	114	nfserr = nfserrno( nfsd_set_posix_acl(
	115	fh, ACL_TYPE_ACCESS, argp->acl_access) );
	116	}
	117	if (!nfserr) {
	118	nfserr = nfserrno( nfsd_set_posix_acl(
	119	fh, ACL_TYPE_DEFAULT, argp->acl_default) );
	120	}
	121
	122	/* argp->acl_{access,default} may have been allocated in
	123	nfssvc_decode_setaclargs. */
	124	posix_acl_release(argp->acl_access);
	125	posix_acl_release(argp->acl_default);
	126	return nfserr;
	127	}
	128
	129	/*
	130	* Check file attributes
	131	*/
7111c66e	132	static __be32 nfsacld_proc_getattr(struct svc_rqst * rqstp,
a257cdd0 AG	133	struct nfsd_fhandle argp, struct nfsd_attrstat resp)
	134	{
	135	dprintk("nfsd: GETATTR %s\n", SVCFH_fmt(&argp->fh));
	136
	137	fh_copy(&resp->fh, &argp->fh);
8837abca	138	return fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_NOP);
a257cdd0 AG	139	}
	140
	141	/*
	142	* Check file access
	143	*/
7111c66e	144	static __be32 nfsacld_proc_access(struct svc_rqst rqstp, struct nfsd3_accessargs argp,
a257cdd0 AG	145	struct nfsd3_accessres *resp)
a257cdd0 AG	146	{
c4d987ba	147	__be32 nfserr;
a257cdd0 AG	148
	149	dprintk("nfsd: ACCESS(2acl) %s 0x%x\n",
	150	SVCFH_fmt(&argp->fh),
	151	argp->access);
	152
	153	fh_copy(&resp->fh, &argp->fh);
	154	resp->access = argp->access;
	155	nfserr = nfsd_access(rqstp, &resp->fh, &resp->access, NULL);
	156	return nfserr;
	157	}
	158
	159	/*
	160	* XDR decode functions
	161	*/
131a21c2	162	static int nfsaclsvc_decode_getaclargs(struct svc_rqst rqstp, __be32 p,
a257cdd0 AG	163	struct nfsd3_getaclargs *argp)
	164	{
	165	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
	166	return 0;
	167	argp->mask = ntohl(*p); p++;
	168
	169	return xdr_argsize_check(rqstp, p);
	170	}
	171
	172
131a21c2	173	static int nfsaclsvc_decode_setaclargs(struct svc_rqst rqstp, __be32 p,
a257cdd0 AG	174	struct nfsd3_setaclargs *argp)
	175	{
	176	struct kvec *head = rqstp->rq_arg.head;
	177	unsigned int base;
	178	int n;
	179
	180	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
	181	return 0;
	182	argp->mask = ntohl(*p++);
	183	if (argp->mask & ~(NFS_ACL\|NFS_ACLCNT\|NFS_DFACL\|NFS_DFACLCNT) \|\|
	184	!xdr_argsize_check(rqstp, p))
	185	return 0;
	186
	187	base = (char )p - (char )head->iov_base;
	188	n = nfsacl_decode(&rqstp->rq_arg, base, NULL,
	189	(argp->mask & NFS_ACL) ?
	190	&argp->acl_access : NULL);
	191	if (n > 0)
	192	n = nfsacl_decode(&rqstp->rq_arg, base + n, NULL,
	193	(argp->mask & NFS_DFACL) ?
	194	&argp->acl_default : NULL);
	195	return (n > 0);
	196	}
	197
131a21c2	198	static int nfsaclsvc_decode_fhandleargs(struct svc_rqst rqstp, __be32 p,
a257cdd0 AG	199	struct nfsd_fhandle *argp)
	200	{
	201	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
	202	return 0;
	203	return xdr_argsize_check(rqstp, p);
	204	}
	205
131a21c2	206	static int nfsaclsvc_decode_accessargs(struct svc_rqst rqstp, __be32 p,
a257cdd0 AG	207	struct nfsd3_accessargs *argp)
	208	{
	209	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
	210	return 0;
	211	argp->access = ntohl(*p++);
	212
	213	return xdr_argsize_check(rqstp, p);
	214	}
	215
	216	/*
	217	* XDR encode functions
	218	*/
	219
1b7e0403 PS	220	/*
	221	* There must be an encoding function for void results so svc_process
	222	* will work properly.
	223	*/
	224	int
	225	nfsaclsvc_encode_voidres(struct svc_rqst rqstp, __be32 p, void *dummy)
	226	{
	227	return xdr_ressize_check(rqstp, p);
	228	}
	229
a257cdd0	230	/* GETACL */
131a21c2	231	static int nfsaclsvc_encode_getaclres(struct svc_rqst rqstp, __be32 p,
a257cdd0 AG	232	struct nfsd3_getaclres *resp)
	233	{
	234	struct dentry *dentry = resp->fh.fh_dentry;
aefa89d1	235	struct inode *inode;
a257cdd0 AG	236	struct kvec *head = rqstp->rq_res.head;
	237	unsigned int base;
	238	int n;
cb65a5ba	239	int w;
a257cdd0	240
aefa89d1 P	241	/*
	242	* Since this is version 2, the check for nfserr in
	243	* nfsd_dispatch actually ensures the following cannot happen.
	244	* However, it seems fragile to depend on that.
	245	*/
a257cdd0 AG	246	if (dentry == NULL \|\| dentry->d_inode == NULL)
	247	return 0;
	248	inode = dentry->d_inode;
	249
	250	p = nfs2svc_encode_fattr(rqstp, p, &resp->fh);
	251	*p++ = htonl(resp->mask);
	252	if (!xdr_ressize_check(rqstp, p))
	253	return 0;
	254	base = (char )p - (char )head->iov_base;
	255
cb65a5ba JJ	256	rqstp->rq_res.page_len = w = nfsacl_size(
	257	(resp->mask & NFS_ACL) ? resp->acl_access : NULL,
	258	(resp->mask & NFS_DFACL) ? resp->acl_default : NULL);
a257cdd0	259	while (w > 0) {
44524359	260	if (!rqstp->rq_respages[rqstp->rq_resused++])
a257cdd0 AG	261	return 0;
	262	w -= PAGE_SIZE;
	263	}
	264
	265	n = nfsacl_encode(&rqstp->rq_res, base, inode,
	266	resp->acl_access,
	267	resp->mask & NFS_ACL, 0);
	268	if (n > 0)
	269	n = nfsacl_encode(&rqstp->rq_res, base + n, inode,
	270	resp->acl_default,
	271	resp->mask & NFS_DFACL,
	272	NFS_ACL_DEFAULT);
	273	if (n <= 0)
	274	return 0;
	275	return 1;
	276	}
	277
131a21c2	278	static int nfsaclsvc_encode_attrstatres(struct svc_rqst rqstp, __be32 p,
a257cdd0 AG	279	struct nfsd_attrstat *resp)
	280	{
	281	p = nfs2svc_encode_fattr(rqstp, p, &resp->fh);
	282	return xdr_ressize_check(rqstp, p);
	283	}
	284
	285	/* ACCESS */
131a21c2	286	static int nfsaclsvc_encode_accessres(struct svc_rqst rqstp, __be32 p,
a257cdd0 AG	287	struct nfsd3_accessres *resp)
	288	{
	289	p = nfs2svc_encode_fattr(rqstp, p, &resp->fh);
	290	*p++ = htonl(resp->access);
	291	return xdr_ressize_check(rqstp, p);
	292	}
	293
	294	/*
	295	* XDR release functions
	296	*/
131a21c2	297	static int nfsaclsvc_release_getacl(struct svc_rqst rqstp, __be32 p,
a257cdd0 AG	298	struct nfsd3_getaclres *resp)
	299	{
	300	fh_put(&resp->fh);
	301	posix_acl_release(resp->acl_access);
	302	posix_acl_release(resp->acl_default);
	303	return 1;
	304	}
	305
c9ce2283 GB	306	static int nfsaclsvc_release_attrstat(struct svc_rqst rqstp, __be32 p,
c9ce2283 GB	307	struct nfsd_attrstat *resp)
a257cdd0 AG	308	{
	309	fh_put(&resp->fh);
	310	return 1;
	311	}
	312
c9ce2283 GB	313	static int nfsaclsvc_release_access(struct svc_rqst rqstp, __be32 p,
	314	struct nfsd3_accessres *resp)
	315	{
	316	fh_put(&resp->fh);
	317	return 1;
	318	}
	319
a257cdd0	320	#define nfsaclsvc_decode_voidargs NULL
a257cdd0 AG	321	#define nfsaclsvc_release_void NULL
	322	#define nfsd3_fhandleargs nfsd_fhandle
	323	#define nfsd3_attrstatres nfsd_attrstat
	324	#define nfsd3_voidres nfsd3_voidargs
	325	struct nfsd3_voidargs { int dummy; };
	326
	327	#define PROC(name, argt, rest, relt, cache, respsize) \
	328	{ (svc_procfunc) nfsacld_proc_##name, \
	329	(kxdrproc_t) nfsaclsvc_decode_##argt##args, \
	330	(kxdrproc_t) nfsaclsvc_encode_##rest##res, \
	331	(kxdrproc_t) nfsaclsvc_release_##relt, \
	332	sizeof(struct nfsd3_##argt##args), \
	333	sizeof(struct nfsd3_##rest##res), \
	334	0, \
	335	cache, \
	336	respsize, \
	337	}
	338
	339	#define ST 1 /* status*/
	340	#define AT 21 /* attributes */
	341	#define pAT (1+AT) /* post attributes - conditional */
	342	#define ACL (1+NFS_ACL_MAX_ENTRIES3) / Access Control List */
	343
	344	static struct svc_procedure nfsd_acl_procedures2[] = {
	345	PROC(null, void, void, void, RC_NOCACHE, ST),
	346	PROC(getacl, getacl, getacl, getacl, RC_NOCACHE, ST+1+2*(1+ACL)),
c9ce2283 GB	347	PROC(setacl, setacl, attrstat, attrstat, RC_NOCACHE, ST+AT),
	348	PROC(getattr, fhandle, attrstat, attrstat, RC_NOCACHE, ST+AT),
	349	PROC(access, access, access, access, RC_NOCACHE, ST+AT+1),
a257cdd0 AG	350	};
	351
	352	struct svc_version nfsd_acl_version2 = {
	353	.vs_vers = 2,
	354	.vs_nproc = 5,
	355	.vs_proc = nfsd_acl_procedures2,
	356	.vs_dispatch = nfsd_dispatch,
	357	.vs_xdrsize = NFS3_SVC_XDRSIZE,
1b7e0403	358	.vs_hidden = 0,
a257cdd0	359	};