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

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

#include "nfsd.h"
/* FIXME: nfsacl.h is a broken header */
#include <linux/nfsacl.h>
#include <linux/gfp.h>
#include "cache.h"
#include "xdr3.h"
#include "vfs.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	/*
a257cdd0 AG	2	* Process version 2 NFSACL requests.
	3	*
	4	* Copyright (C) 2002-2003 Andreas Gruenbacher <agruen@suse.de>
	5	*/
	6
9a74af21 BH	7	#include "nfsd.h"
9a74af21 BH	8	/* FIXME: nfsacl.h is a broken header */
a257cdd0	9	#include <linux/nfsacl.h>
5a0e3ad6	10	#include <linux/gfp.h>
9a74af21 BH	11	#include "cache.h"
9a74af21 BH	12	#include "xdr3.h"
0a3adade	13	#include "vfs.h"
a257cdd0 AG	14
	15	#define NFSDDBG_FACILITY NFSDDBG_PROC
	16	#define RETURN_STATUS(st) { resp->status = (st); return (st); }
	17
	18	/*
	19	* NULL call.
	20	*/
7111c66e	21	static __be32
a257cdd0 AG	22	nfsacld_proc_null(struct svc_rqst rqstp, void argp, void *resp)
	23	{
	24	return nfs_ok;
	25	}
	26
	27	/*
	28	* Get the Access and/or Default ACL of a file.
	29	*/
7111c66e	30	static __be32 nfsacld_proc_getacl(struct svc_rqst * rqstp,
a257cdd0 AG	31	struct nfsd3_getaclargs argp, struct nfsd3_getaclres resp)
	32	{
	33	svc_fh *fh;
	34	struct posix_acl *acl;
c4d987ba	35	__be32 nfserr = 0;
a257cdd0 AG	36
	37	dprintk("nfsd: GETACL(2acl) %s\n", SVCFH_fmt(&argp->fh));
	38
	39	fh = fh_copy(&resp->fh, &argp->fh);
8837abca MS	40	nfserr = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_NOP);
8837abca MS	41	if (nfserr)
ac8587dc	42	RETURN_STATUS(nfserr);
a257cdd0 AG	43
	44	if (argp->mask & ~(NFS_ACL\|NFS_ACLCNT\|NFS_DFACL\|NFS_DFACLCNT))
	45	RETURN_STATUS(nfserr_inval);
	46	resp->mask = argp->mask;
	47
	48	if (resp->mask & (NFS_ACL\|NFS_ACLCNT)) {
	49	acl = nfsd_get_posix_acl(fh, ACL_TYPE_ACCESS);
	50	if (IS_ERR(acl)) {
	51	int err = PTR_ERR(acl);
	52
	53	if (err == -ENODATA \|\| err == -EOPNOTSUPP)
	54	acl = NULL;
	55	else {
	56	nfserr = nfserrno(err);
	57	goto fail;
	58	}
	59	}
	60	if (acl == NULL) {
	61	/* Solaris returns the inode's minimum ACL. */
	62
	63	struct inode *inode = fh->fh_dentry->d_inode;
	64	acl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL);
	65	}
	66	resp->acl_access = acl;
	67	}
	68	if (resp->mask & (NFS_DFACL\|NFS_DFACLCNT)) {
	69	/* Check how Solaris handles requests for the Default ACL
	70	of a non-directory! */
	71
	72	acl = nfsd_get_posix_acl(fh, ACL_TYPE_DEFAULT);
	73	if (IS_ERR(acl)) {
	74	int err = PTR_ERR(acl);
	75
	76	if (err == -ENODATA \|\| err == -EOPNOTSUPP)
	77	acl = NULL;
	78	else {
	79	nfserr = nfserrno(err);
	80	goto fail;
	81	}
	82	}
	83	resp->acl_default = acl;
	84	}
	85
	86	/* resp->acl_{access,default} are released in nfssvc_release_getacl. */
	87	RETURN_STATUS(0);
	88
	89	fail:
	90	posix_acl_release(resp->acl_access);
	91	posix_acl_release(resp->acl_default);
	92	RETURN_STATUS(nfserr);
	93	}
	94
	95	/*
	96	* Set the Access and/or Default ACL of a file.
	97	*/
7111c66e	98	static __be32 nfsacld_proc_setacl(struct svc_rqst * rqstp,
a257cdd0 AG	99	struct nfsd3_setaclargs *argp,
	100	struct nfsd_attrstat *resp)
	101	{
	102	svc_fh *fh;
c4d987ba	103	__be32 nfserr = 0;
a257cdd0 AG	104
	105	dprintk("nfsd: SETACL(2acl) %s\n", SVCFH_fmt(&argp->fh));
	106
	107	fh = fh_copy(&resp->fh, &argp->fh);
8837abca	108	nfserr = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_SATTR);
a257cdd0 AG	109
	110	if (!nfserr) {
	111	nfserr = nfserrno( nfsd_set_posix_acl(
	112	fh, ACL_TYPE_ACCESS, argp->acl_access) );
	113	}
	114	if (!nfserr) {
	115	nfserr = nfserrno( nfsd_set_posix_acl(
	116	fh, ACL_TYPE_DEFAULT, argp->acl_default) );
	117	}
	118
	119	/* argp->acl_{access,default} may have been allocated in
	120	nfssvc_decode_setaclargs. */
	121	posix_acl_release(argp->acl_access);
	122	posix_acl_release(argp->acl_default);
	123	return nfserr;
	124	}
	125
	126	/*
	127	* Check file attributes
	128	*/
7111c66e	129	static __be32 nfsacld_proc_getattr(struct svc_rqst * rqstp,
a257cdd0 AG	130	struct nfsd_fhandle argp, struct nfsd_attrstat resp)
	131	{
	132	dprintk("nfsd: GETATTR %s\n", SVCFH_fmt(&argp->fh));
	133
	134	fh_copy(&resp->fh, &argp->fh);
8837abca	135	return fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_NOP);
a257cdd0 AG	136	}
	137
	138	/*
	139	* Check file access
	140	*/
7111c66e	141	static __be32 nfsacld_proc_access(struct svc_rqst rqstp, struct nfsd3_accessargs argp,
a257cdd0 AG	142	struct nfsd3_accessres *resp)
a257cdd0 AG	143	{
c4d987ba	144	__be32 nfserr;
a257cdd0 AG	145
	146	dprintk("nfsd: ACCESS(2acl) %s 0x%x\n",
	147	SVCFH_fmt(&argp->fh),
	148	argp->access);
	149
	150	fh_copy(&resp->fh, &argp->fh);
	151	resp->access = argp->access;
	152	nfserr = nfsd_access(rqstp, &resp->fh, &resp->access, NULL);
	153	return nfserr;
	154	}
	155
	156	/*
	157	* XDR decode functions
	158	*/
131a21c2	159	static int nfsaclsvc_decode_getaclargs(struct svc_rqst rqstp, __be32 p,
a257cdd0 AG	160	struct nfsd3_getaclargs *argp)
	161	{
	162	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
	163	return 0;
	164	argp->mask = ntohl(*p); p++;
	165
	166	return xdr_argsize_check(rqstp, p);
	167	}
	168
	169
131a21c2	170	static int nfsaclsvc_decode_setaclargs(struct svc_rqst rqstp, __be32 p,
a257cdd0 AG	171	struct nfsd3_setaclargs *argp)
	172	{
	173	struct kvec *head = rqstp->rq_arg.head;
	174	unsigned int base;
	175	int n;
	176
	177	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
	178	return 0;
	179	argp->mask = ntohl(*p++);
	180	if (argp->mask & ~(NFS_ACL\|NFS_ACLCNT\|NFS_DFACL\|NFS_DFACLCNT) \|\|
	181	!xdr_argsize_check(rqstp, p))
	182	return 0;
	183
	184	base = (char )p - (char )head->iov_base;
	185	n = nfsacl_decode(&rqstp->rq_arg, base, NULL,
	186	(argp->mask & NFS_ACL) ?
	187	&argp->acl_access : NULL);
	188	if (n > 0)
	189	n = nfsacl_decode(&rqstp->rq_arg, base + n, NULL,
	190	(argp->mask & NFS_DFACL) ?
	191	&argp->acl_default : NULL);
	192	return (n > 0);
	193	}
	194
131a21c2	195	static int nfsaclsvc_decode_fhandleargs(struct svc_rqst rqstp, __be32 p,
a257cdd0 AG	196	struct nfsd_fhandle *argp)
	197	{
	198	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
	199	return 0;
	200	return xdr_argsize_check(rqstp, p);
	201	}
	202
131a21c2	203	static int nfsaclsvc_decode_accessargs(struct svc_rqst rqstp, __be32 p,
a257cdd0 AG	204	struct nfsd3_accessargs *argp)
	205	{
	206	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
	207	return 0;
	208	argp->access = ntohl(*p++);
	209
	210	return xdr_argsize_check(rqstp, p);
	211	}
	212
	213	/*
	214	* XDR encode functions
	215	*/
	216
1b7e0403 PS	217	/*
	218	* There must be an encoding function for void results so svc_process
	219	* will work properly.
	220	*/
	221	int
	222	nfsaclsvc_encode_voidres(struct svc_rqst rqstp, __be32 p, void *dummy)
	223	{
	224	return xdr_ressize_check(rqstp, p);
	225	}
	226
a257cdd0	227	/* GETACL */
131a21c2	228	static int nfsaclsvc_encode_getaclres(struct svc_rqst rqstp, __be32 p,
a257cdd0 AG	229	struct nfsd3_getaclres *resp)
	230	{
	231	struct dentry *dentry = resp->fh.fh_dentry;
aefa89d1	232	struct inode *inode;
a257cdd0 AG	233	struct kvec *head = rqstp->rq_res.head;
	234	unsigned int base;
	235	int n;
cb65a5ba	236	int w;
a257cdd0	237
aefa89d1 P	238	/*
	239	* Since this is version 2, the check for nfserr in
	240	* nfsd_dispatch actually ensures the following cannot happen.
	241	* However, it seems fragile to depend on that.
	242	*/
a257cdd0 AG	243	if (dentry == NULL \|\| dentry->d_inode == NULL)
	244	return 0;
	245	inode = dentry->d_inode;
	246
	247	p = nfs2svc_encode_fattr(rqstp, p, &resp->fh);
	248	*p++ = htonl(resp->mask);
	249	if (!xdr_ressize_check(rqstp, p))
	250	return 0;
	251	base = (char )p - (char )head->iov_base;
	252
cb65a5ba JJ	253	rqstp->rq_res.page_len = w = nfsacl_size(
	254	(resp->mask & NFS_ACL) ? resp->acl_access : NULL,
	255	(resp->mask & NFS_DFACL) ? resp->acl_default : NULL);
a257cdd0	256	while (w > 0) {
44524359	257	if (!rqstp->rq_respages[rqstp->rq_resused++])
a257cdd0 AG	258	return 0;
	259	w -= PAGE_SIZE;
	260	}
	261
	262	n = nfsacl_encode(&rqstp->rq_res, base, inode,
	263	resp->acl_access,
	264	resp->mask & NFS_ACL, 0);
	265	if (n > 0)
	266	n = nfsacl_encode(&rqstp->rq_res, base + n, inode,
	267	resp->acl_default,
	268	resp->mask & NFS_DFACL,
	269	NFS_ACL_DEFAULT);
	270	if (n <= 0)
	271	return 0;
	272	return 1;
	273	}
	274
131a21c2	275	static int nfsaclsvc_encode_attrstatres(struct svc_rqst rqstp, __be32 p,
a257cdd0 AG	276	struct nfsd_attrstat *resp)
	277	{
	278	p = nfs2svc_encode_fattr(rqstp, p, &resp->fh);
	279	return xdr_ressize_check(rqstp, p);
	280	}
	281
	282	/* ACCESS */
131a21c2	283	static int nfsaclsvc_encode_accessres(struct svc_rqst rqstp, __be32 p,
a257cdd0 AG	284	struct nfsd3_accessres *resp)
	285	{
	286	p = nfs2svc_encode_fattr(rqstp, p, &resp->fh);
	287	*p++ = htonl(resp->access);
	288	return xdr_ressize_check(rqstp, p);
	289	}
	290
	291	/*
	292	* XDR release functions
	293	*/
131a21c2	294	static int nfsaclsvc_release_getacl(struct svc_rqst rqstp, __be32 p,
a257cdd0 AG	295	struct nfsd3_getaclres *resp)
	296	{
	297	fh_put(&resp->fh);
	298	posix_acl_release(resp->acl_access);
	299	posix_acl_release(resp->acl_default);
	300	return 1;
	301	}
	302
c9ce2283 GB	303	static int nfsaclsvc_release_attrstat(struct svc_rqst rqstp, __be32 p,
c9ce2283 GB	304	struct nfsd_attrstat *resp)
a257cdd0 AG	305	{
	306	fh_put(&resp->fh);
	307	return 1;
	308	}
	309
c9ce2283 GB	310	static int nfsaclsvc_release_access(struct svc_rqst rqstp, __be32 p,
	311	struct nfsd3_accessres *resp)
	312	{
	313	fh_put(&resp->fh);
	314	return 1;
	315	}
	316
a257cdd0	317	#define nfsaclsvc_decode_voidargs NULL
a257cdd0 AG	318	#define nfsaclsvc_release_void NULL
	319	#define nfsd3_fhandleargs nfsd_fhandle
	320	#define nfsd3_attrstatres nfsd_attrstat
	321	#define nfsd3_voidres nfsd3_voidargs
	322	struct nfsd3_voidargs { int dummy; };
	323
	324	#define PROC(name, argt, rest, relt, cache, respsize) \
	325	{ (svc_procfunc) nfsacld_proc_##name, \
	326	(kxdrproc_t) nfsaclsvc_decode_##argt##args, \
	327	(kxdrproc_t) nfsaclsvc_encode_##rest##res, \
	328	(kxdrproc_t) nfsaclsvc_release_##relt, \
	329	sizeof(struct nfsd3_##argt##args), \
	330	sizeof(struct nfsd3_##rest##res), \
	331	0, \
	332	cache, \
	333	respsize, \
	334	}
	335
	336	#define ST 1 /* status*/
	337	#define AT 21 /* attributes */
	338	#define pAT (1+AT) /* post attributes - conditional */
	339	#define ACL (1+NFS_ACL_MAX_ENTRIES3) / Access Control List */
	340
	341	static struct svc_procedure nfsd_acl_procedures2[] = {
	342	PROC(null, void, void, void, RC_NOCACHE, ST),
	343	PROC(getacl, getacl, getacl, getacl, RC_NOCACHE, ST+1+2*(1+ACL)),
c9ce2283 GB	344	PROC(setacl, setacl, attrstat, attrstat, RC_NOCACHE, ST+AT),
	345	PROC(getattr, fhandle, attrstat, attrstat, RC_NOCACHE, ST+AT),
	346	PROC(access, access, access, access, RC_NOCACHE, ST+AT+1),
a257cdd0 AG	347	};
	348
	349	struct svc_version nfsd_acl_version2 = {
	350	.vs_vers = 2,
	351	.vs_nproc = 5,
	352	.vs_proc = nfsd_acl_procedures2,
	353	.vs_dispatch = nfsd_dispatch,
	354	.vs_xdrsize = NFS3_SVC_XDRSIZE,
1b7e0403	355	.vs_hidden = 0,
a257cdd0	356	};