[linux-2.6-block.git] / fs / cifs / xattr.c

/*
 *   fs/cifs/xattr.c
 *
 *   Copyright (c) International Business Machines  Corp., 2003, 2007
 *   Author(s): Steve French (sfrench@us.ibm.com)
 *
 *   This library is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Lesser General Public License as published
 *   by the Free Software Foundation; either version 2.1 of the License, or
 *   (at your option) any later version.
 *
 *   This library is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
 *   the GNU Lesser General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public License
 *   along with this library; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#include <linux/fs.h>
#include <linux/posix_acl_xattr.h>
#include <linux/slab.h>
#include <linux/xattr.h>
#include "cifsfs.h"
#include "cifspdu.h"
#include "cifsglob.h"
#include "cifsproto.h"
#include "cifs_debug.h"
#include "cifs_fs_sb.h"
#include "cifs_unicode.h"

#define MAX_EA_VALUE_SIZE 65535
#define CIFS_XATTR_CIFS_ACL "system.cifs_acl"

/* BB need to add server (Samba e.g) support for security and trusted prefix */

enum { XATTR_USER, XATTR_CIFS_ACL, XATTR_ACL_ACCESS, XATTR_ACL_DEFAULT };

static int cifs_xattr_set(const struct xattr_handler *handler,
			  struct dentry *dentry, struct inode *inode,
			  const char *name, const void *value,
			  size_t size, int flags)
{
	int rc = -EOPNOTSUPP;
	unsigned int xid;
	struct super_block *sb = dentry->d_sb;
	struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
	struct tcon_link *tlink;
	struct cifs_tcon *pTcon;
	char *full_path;

	tlink = cifs_sb_tlink(cifs_sb);
	if (IS_ERR(tlink))
		return PTR_ERR(tlink);
	pTcon = tlink_tcon(tlink);

	xid = get_xid();

	full_path = build_path_from_dentry(dentry);
	if (full_path == NULL) {
		rc = -ENOMEM;
		goto out;
	}
	/* return dos attributes as pseudo xattr */
	/* return alt name if available as pseudo attr */

	/* if proc/fs/cifs/streamstoxattr is set then
		search server for EAs or streams to
		returns as xattrs */
	if (size > MAX_EA_VALUE_SIZE) {
		cifs_dbg(FYI, "size of EA value too large\n");
		rc = -EOPNOTSUPP;
		goto out;
	}

	switch (handler->flags) {
	case XATTR_USER:
		if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
			goto out;

		if (pTcon->ses->server->ops->set_EA)
			rc = pTcon->ses->server->ops->set_EA(xid, pTcon,
				full_path, name, value, (__u16)size,
				cifs_sb->local_nls, cifs_remap(cifs_sb));
		break;

	case XATTR_CIFS_ACL: {
#ifdef CONFIG_CIFS_ACL
		struct cifs_ntsd *pacl;

		if (!value)
			goto out;
		pacl = kmalloc(size, GFP_KERNEL);
		if (!pacl) {
			rc = -ENOMEM;
		} else {
			memcpy(pacl, value, size);
			if (value &&
			    pTcon->ses->server->ops->set_acl)
				rc = pTcon->ses->server->ops->set_acl(pacl,
						size, inode,
						full_path, CIFS_ACL_DACL);
			else
				rc = -EOPNOTSUPP;
			if (rc == 0) /* force revalidate of the inode */
				CIFS_I(inode)->time = 0;
			kfree(pacl);
		}
#endif /* CONFIG_CIFS_ACL */
		break;
	}

	case XATTR_ACL_ACCESS:
#ifdef CONFIG_CIFS_POSIX
		if (!value)
			goto out;
		if (sb->s_flags & MS_POSIXACL)
			rc = CIFSSMBSetPosixACL(xid, pTcon, full_path,
				value, (const int)size,
				ACL_TYPE_ACCESS, cifs_sb->local_nls,
				cifs_remap(cifs_sb));
#endif  /* CONFIG_CIFS_POSIX */
		break;

	case XATTR_ACL_DEFAULT:
#ifdef CONFIG_CIFS_POSIX
		if (!value)
			goto out;
		if (sb->s_flags & MS_POSIXACL)
			rc = CIFSSMBSetPosixACL(xid, pTcon, full_path,
				value, (const int)size,
				ACL_TYPE_DEFAULT, cifs_sb->local_nls,
				cifs_remap(cifs_sb));
#endif  /* CONFIG_CIFS_POSIX */
		break;
	}

out:
	kfree(full_path);
	free_xid(xid);
	cifs_put_tlink(tlink);
	return rc;
}

static int cifs_xattr_get(const struct xattr_handler *handler,
			  struct dentry *dentry, struct inode *inode,
			  const char *name, void *value, size_t size)
{
	ssize_t rc = -EOPNOTSUPP;
	unsigned int xid;
	struct super_block *sb = dentry->d_sb;
	struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
	struct tcon_link *tlink;
	struct cifs_tcon *pTcon;
	char *full_path;

	tlink = cifs_sb_tlink(cifs_sb);
	if (IS_ERR(tlink))
		return PTR_ERR(tlink);
	pTcon = tlink_tcon(tlink);

	xid = get_xid();

	full_path = build_path_from_dentry(dentry);
	if (full_path == NULL) {
		rc = -ENOMEM;
		goto out;
	}
	/* return dos attributes as pseudo xattr */
	/* return alt name if available as pseudo attr */
	switch (handler->flags) {
	case XATTR_USER:
		if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
			goto out;

		if (pTcon->ses->server->ops->query_all_EAs)
			rc = pTcon->ses->server->ops->query_all_EAs(xid, pTcon,
				full_path, name, value, size,
				cifs_sb->local_nls, cifs_remap(cifs_sb));
		break;

	case XATTR_CIFS_ACL: {
#ifdef CONFIG_CIFS_ACL
		u32 acllen;
		struct cifs_ntsd *pacl;

		if (pTcon->ses->server->ops->get_acl == NULL)
			goto out; /* rc already EOPNOTSUPP */

		pacl = pTcon->ses->server->ops->get_acl(cifs_sb,
				inode, full_path, &acllen);
		if (IS_ERR(pacl)) {
			rc = PTR_ERR(pacl);
			cifs_dbg(VFS, "%s: error %zd getting sec desc\n",
				 __func__, rc);
		} else {
			if (value) {
				if (acllen > size)
					acllen = -ERANGE;
				else
					memcpy(value, pacl, acllen);
			}
			rc = acllen;
			kfree(pacl);
		}
#endif  /* CONFIG_CIFS_ACL */
		break;
	}

	case XATTR_ACL_ACCESS:
#ifdef CONFIG_CIFS_POSIX
		if (sb->s_flags & MS_POSIXACL)
			rc = CIFSSMBGetPosixACL(xid, pTcon, full_path,
				value, size, ACL_TYPE_ACCESS,
				cifs_sb->local_nls,
				cifs_remap(cifs_sb));
#endif  /* CONFIG_CIFS_POSIX */
		break;

	case XATTR_ACL_DEFAULT:
#ifdef CONFIG_CIFS_POSIX
		if (sb->s_flags & MS_POSIXACL)
			rc = CIFSSMBGetPosixACL(xid, pTcon, full_path,
				value, size, ACL_TYPE_DEFAULT,
				cifs_sb->local_nls,
				cifs_remap(cifs_sb));
#endif  /* CONFIG_CIFS_POSIX */
		break;
	}

	/* We could add an additional check for streams ie
	    if proc/fs/cifs/streamstoxattr is set then
		search server for EAs or streams to
		returns as xattrs */

	if (rc == -EINVAL)
		rc = -EOPNOTSUPP;

out:
	kfree(full_path);
	free_xid(xid);
	cifs_put_tlink(tlink);
	return rc;
}

ssize_t cifs_listxattr(struct dentry *direntry, char *data, size_t buf_size)
{
	ssize_t rc = -EOPNOTSUPP;
	unsigned int xid;
	struct cifs_sb_info *cifs_sb = CIFS_SB(direntry->d_sb);
	struct tcon_link *tlink;
	struct cifs_tcon *pTcon;
	char *full_path;

	if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
		return -EOPNOTSUPP;

	tlink = cifs_sb_tlink(cifs_sb);
	if (IS_ERR(tlink))
		return PTR_ERR(tlink);
	pTcon = tlink_tcon(tlink);

	xid = get_xid();

	full_path = build_path_from_dentry(direntry);
	if (full_path == NULL) {
		rc = -ENOMEM;
		goto list_ea_exit;
	}
	/* return dos attributes as pseudo xattr */
	/* return alt name if available as pseudo attr */

	/* if proc/fs/cifs/streamstoxattr is set then
		search server for EAs or streams to
		returns as xattrs */

	if (pTcon->ses->server->ops->query_all_EAs)
		rc = pTcon->ses->server->ops->query_all_EAs(xid, pTcon,
				full_path, NULL, data, buf_size,
				cifs_sb->local_nls, cifs_remap(cifs_sb));
list_ea_exit:
	kfree(full_path);
	free_xid(xid);
	cifs_put_tlink(tlink);
	return rc;
}

static const struct xattr_handler cifs_user_xattr_handler = {
	.prefix = XATTR_USER_PREFIX,
	.flags = XATTR_USER,
	.get = cifs_xattr_get,
	.set = cifs_xattr_set,
};

/* os2.* attributes are treated like user.* attributes */
static const struct xattr_handler cifs_os2_xattr_handler = {
	.prefix = XATTR_OS2_PREFIX,
	.flags = XATTR_USER,
	.get = cifs_xattr_get,
	.set = cifs_xattr_set,
};

static const struct xattr_handler cifs_cifs_acl_xattr_handler = {
	.name = CIFS_XATTR_CIFS_ACL,
	.flags = XATTR_CIFS_ACL,
	.get = cifs_xattr_get,
	.set = cifs_xattr_set,
};

static const struct xattr_handler cifs_posix_acl_access_xattr_handler = {
	.name = XATTR_NAME_POSIX_ACL_ACCESS,
	.flags = XATTR_ACL_ACCESS,
	.get = cifs_xattr_get,
	.set = cifs_xattr_set,
};

static const struct xattr_handler cifs_posix_acl_default_xattr_handler = {
	.name = XATTR_NAME_POSIX_ACL_DEFAULT,
	.flags = XATTR_ACL_DEFAULT,
	.get = cifs_xattr_get,
	.set = cifs_xattr_set,
};

const struct xattr_handler *cifs_xattr_handlers[] = {
	&cifs_user_xattr_handler,
	&cifs_os2_xattr_handler,
	&cifs_cifs_acl_xattr_handler,
	&cifs_posix_acl_access_xattr_handler,
	&cifs_posix_acl_default_xattr_handler,
	NULL
};
Commit	Line	Data
1da177e4 LT	1	/*
	2	* fs/cifs/xattr.c
	3	*
79a58d1f	4	* Copyright (c) International Business Machines Corp., 2003, 2007
1da177e4 LT	5	* Author(s): Steve French (sfrench@us.ibm.com)
	6	*
	7	* This library is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU Lesser General Public License as published
	9	* by the Free Software Foundation; either version 2.1 of the License, or
	10	* (at your option) any later version.
	11	*
	12	* This library is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
	15	* the GNU Lesser General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU Lesser General Public License
	18	* along with this library; if not, write to the Free Software
	19	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	20	*/
	21
	22	#include <linux/fs.h>
	23	#include <linux/posix_acl_xattr.h>
5a0e3ad6	24	#include <linux/slab.h>
f995e740	25	#include <linux/xattr.h>
1da177e4 LT	26	#include "cifsfs.h"
	27	#include "cifspdu.h"
	28	#include "cifsglob.h"
	29	#include "cifsproto.h"
	30	#include "cifs_debug.h"
2baa2682 SF	31	#include "cifs_fs_sb.h"
2baa2682 SF	32	#include "cifs_unicode.h"
1da177e4 LT	33
1da177e4 LT	34	#define MAX_EA_VALUE_SIZE 65535
fbeba8bb	35	#define CIFS_XATTR_CIFS_ACL "system.cifs_acl"
1da177e4	36
f995e740	37	/* BB need to add server (Samba e.g) support for security and trusted prefix */
1da177e4	38
a9ae008f	39	enum { XATTR_USER, XATTR_CIFS_ACL, XATTR_ACL_ACCESS, XATTR_ACL_DEFAULT };
7ffec372	40
a9ae008f	41	static int cifs_xattr_set(const struct xattr_handler *handler,
59301226 AV	42	struct dentry dentry, struct inode inode,
	43	const char name, const void value,
	44	size_t size, int flags)
1da177e4 LT	45	{
1da177e4 LT	46	int rc = -EOPNOTSUPP;
6d5786a3	47	unsigned int xid;
a9ae008f	48	struct super_block *sb = dentry->d_sb;
5fdccfef	49	struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
7ffec372	50	struct tcon_link *tlink;
96daf2b0	51	struct cifs_tcon *pTcon;
79a58d1f	52	char *full_path;
1da177e4	53
7ffec372 JL	54	tlink = cifs_sb_tlink(cifs_sb);
	55	if (IS_ERR(tlink))
	56	return PTR_ERR(tlink);
	57	pTcon = tlink_tcon(tlink);
	58
6d5786a3	59	xid = get_xid();
1da177e4	60
a9ae008f	61	full_path = build_path_from_dentry(dentry);
79a58d1f	62	if (full_path == NULL) {
0f3bc09e	63	rc = -ENOMEM;
a9ae008f	64	goto out;
1da177e4 LT	65	}
	66	/* return dos attributes as pseudo xattr */
	67	/* return alt name if available as pseudo attr */
	68
	69	/* if proc/fs/cifs/streamstoxattr is set then
79a58d1f	70	search server for EAs or streams to
1da177e4	71	returns as xattrs */
a9ae008f	72	if (size > MAX_EA_VALUE_SIZE) {
f96637be	73	cifs_dbg(FYI, "size of EA value too large\n");
7ffec372	74	rc = -EOPNOTSUPP;
a9ae008f	75	goto out;
1da177e4 LT	76	}
1da177e4 LT	77
a9ae008f AG	78	switch (handler->flags) {
a9ae008f AG	79	case XATTR_USER:
79a58d1f	80	if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
a9ae008f	81	goto out;
ad7a2926	82
666753c3 SF	83	if (pTcon->ses->server->ops->set_EA)
666753c3 SF	84	rc = pTcon->ses->server->ops->set_EA(xid, pTcon,
a9ae008f	85	full_path, name, value, (__u16)size,
2baa2682	86	cifs_sb->local_nls, cifs_remap(cifs_sb));
a9ae008f	87	break;
1da177e4	88
a9ae008f	89	case XATTR_CIFS_ACL: {
b0f8ef20 SN	90	#ifdef CONFIG_CIFS_ACL
b0f8ef20 SN	91	struct cifs_ntsd *pacl;
a9ae008f AG	92
	93	if (!value)
	94	goto out;
	95	pacl = kmalloc(size, GFP_KERNEL);
b73b9a4b	96	if (!pacl) {
b73b9a4b SF	97	rc = -ENOMEM;
b73b9a4b SF	98	} else {
a9ae008f AG	99	memcpy(pacl, value, size);
	100	if (value &&
	101	pTcon->ses->server->ops->set_acl)
83e3bc23	102	rc = pTcon->ses->server->ops->set_acl(pacl,
59301226	103	size, inode,
83e3bc23 SF	104	full_path, CIFS_ACL_DACL);
	105	else
	106	rc = -EOPNOTSUPP;
b73b9a4b	107	if (rc == 0) /* force revalidate of the inode */
59301226	108	CIFS_I(inode)->time = 0;
b73b9a4b	109	kfree(pacl);
b0f8ef20	110	}
b73b9a4b	111	#endif /* CONFIG_CIFS_ACL */
a9ae008f AG	112	break;
	113	}
	114
	115	case XATTR_ACL_ACCESS:
1da177e4	116	#ifdef CONFIG_CIFS_POSIX
a9ae008f AG	117	if (!value)
	118	goto out;
	119	if (sb->s_flags & MS_POSIXACL)
	120	rc = CIFSSMBSetPosixACL(xid, pTcon, full_path,
	121	value, (const int)size,
	122	ACL_TYPE_ACCESS, cifs_sb->local_nls,
	123	cifs_remap(cifs_sb));
	124	#endif /* CONFIG_CIFS_POSIX */
	125	break;
	126
	127	case XATTR_ACL_DEFAULT:
1da177e4	128	#ifdef CONFIG_CIFS_POSIX
a9ae008f AG	129	if (!value)
	130	goto out;
	131	if (sb->s_flags & MS_POSIXACL)
	132	rc = CIFSSMBSetPosixACL(xid, pTcon, full_path,
	133	value, (const int)size,
	134	ACL_TYPE_DEFAULT, cifs_sb->local_nls,
	135	cifs_remap(cifs_sb));
	136	#endif /* CONFIG_CIFS_POSIX */
	137	break;
1da177e4 LT	138	}
1da177e4 LT	139
a9ae008f	140	out:
f99d49ad	141	kfree(full_path);
6d5786a3	142	free_xid(xid);
7ffec372	143	cifs_put_tlink(tlink);
1da177e4 LT	144	return rc;
	145	}
	146
a9ae008f AG	147	static int cifs_xattr_get(const struct xattr_handler *handler,
	148	struct dentry dentry, struct inode inode,
	149	const char name, void value, size_t size)
1da177e4 LT	150	{
1da177e4 LT	151	ssize_t rc = -EOPNOTSUPP;
6d5786a3	152	unsigned int xid;
a9ae008f	153	struct super_block *sb = dentry->d_sb;
5fdccfef	154	struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
7ffec372	155	struct tcon_link *tlink;
96daf2b0	156	struct cifs_tcon *pTcon;
79a58d1f	157	char *full_path;
1da177e4	158
7ffec372 JL	159	tlink = cifs_sb_tlink(cifs_sb);
	160	if (IS_ERR(tlink))
	161	return PTR_ERR(tlink);
	162	pTcon = tlink_tcon(tlink);
	163
6d5786a3	164	xid = get_xid();
1da177e4	165
a9ae008f	166	full_path = build_path_from_dentry(dentry);
79a58d1f	167	if (full_path == NULL) {
0f3bc09e	168	rc = -ENOMEM;
a9ae008f	169	goto out;
1da177e4 LT	170	}
	171	/* return dos attributes as pseudo xattr */
	172	/* return alt name if available as pseudo attr */
a9ae008f AG	173	switch (handler->flags) {
a9ae008f AG	174	case XATTR_USER:
79a58d1f	175	if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
a9ae008f	176	goto out;
1da177e4	177
666753c3 SF	178	if (pTcon->ses->server->ops->query_all_EAs)
666753c3 SF	179	rc = pTcon->ses->server->ops->query_all_EAs(xid, pTcon,
a9ae008f	180	full_path, name, value, size,
2baa2682	181	cifs_sb->local_nls, cifs_remap(cifs_sb));
a9ae008f	182	break;
1da177e4	183
a9ae008f AG	184	case XATTR_CIFS_ACL: {
	185	#ifdef CONFIG_CIFS_ACL
	186	u32 acllen;
	187	struct cifs_ntsd *pacl;
	188
	189	if (pTcon->ses->server->ops->get_acl == NULL)
	190	goto out; /* rc already EOPNOTSUPP */
	191
	192	pacl = pTcon->ses->server->ops->get_acl(cifs_sb,
	193	inode, full_path, &acllen);
	194	if (IS_ERR(pacl)) {
	195	rc = PTR_ERR(pacl);
	196	cifs_dbg(VFS, "%s: error %zd getting sec desc\n",
	197	__func__, rc);
	198	} else {
	199	if (value) {
	200	if (acllen > size)
	201	acllen = -ERANGE;
	202	else
	203	memcpy(value, pacl, acllen);
	204	}
	205	rc = acllen;
	206	kfree(pacl);
	207	}
	208	#endif /* CONFIG_CIFS_ACL */
	209	break;
	210	}
	211
	212	case XATTR_ACL_ACCESS:
1da177e4	213	#ifdef CONFIG_CIFS_POSIX
79a58d1f	214	if (sb->s_flags & MS_POSIXACL)
1da0c78b	215	rc = CIFSSMBGetPosixACL(xid, pTcon, full_path,
a9ae008f	216	value, size, ACL_TYPE_ACCESS,
737b758c	217	cifs_sb->local_nls,
2baa2682	218	cifs_remap(cifs_sb));
a9ae008f AG	219	#endif /* CONFIG_CIFS_POSIX */
	220	break;
	221
	222	case XATTR_ACL_DEFAULT:
1da177e4	223	#ifdef CONFIG_CIFS_POSIX
79a58d1f	224	if (sb->s_flags & MS_POSIXACL)
1da0c78b	225	rc = CIFSSMBGetPosixACL(xid, pTcon, full_path,
a9ae008f	226	value, size, ACL_TYPE_DEFAULT,
737b758c	227	cifs_sb->local_nls,
2baa2682	228	cifs_remap(cifs_sb));
a9ae008f AG	229	#endif /* CONFIG_CIFS_POSIX */
	230	break;
	231	}
1da177e4	232
79a58d1f	233	/* We could add an additional check for streams ie
1da177e4	234	if proc/fs/cifs/streamstoxattr is set then
79a58d1f	235	search server for EAs or streams to
1da177e4 LT	236	returns as xattrs */
1da177e4 LT	237
79a58d1f SF	238	if (rc == -EINVAL)
79a58d1f SF	239	rc = -EOPNOTSUPP;
1da177e4	240
a9ae008f	241	out:
f99d49ad	242	kfree(full_path);
6d5786a3	243	free_xid(xid);
7ffec372	244	cifs_put_tlink(tlink);
1da177e4 LT	245	return rc;
	246	}
	247
79a58d1f	248	ssize_t cifs_listxattr(struct dentry direntry, char data, size_t buf_size)
1da177e4 LT	249	{
1da177e4 LT	250	ssize_t rc = -EOPNOTSUPP;
6d5786a3	251	unsigned int xid;
5fdccfef	252	struct cifs_sb_info *cifs_sb = CIFS_SB(direntry->d_sb);
7ffec372	253	struct tcon_link *tlink;
96daf2b0	254	struct cifs_tcon *pTcon;
79a58d1f	255	char *full_path;
1da177e4	256
79a58d1f	257	if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
ea4c07d7 SF	258	return -EOPNOTSUPP;
ea4c07d7 SF	259
7ffec372 JL	260	tlink = cifs_sb_tlink(cifs_sb);
	261	if (IS_ERR(tlink))
	262	return PTR_ERR(tlink);
	263	pTcon = tlink_tcon(tlink);
	264
6d5786a3	265	xid = get_xid();
ea4c07d7	266
1da177e4	267	full_path = build_path_from_dentry(direntry);
79a58d1f	268	if (full_path == NULL) {
0f3bc09e	269	rc = -ENOMEM;
7ffec372	270	goto list_ea_exit;
1da177e4 LT	271	}
	272	/* return dos attributes as pseudo xattr */
	273	/* return alt name if available as pseudo attr */
	274
	275	/* if proc/fs/cifs/streamstoxattr is set then
79a58d1f	276	search server for EAs or streams to
1da177e4	277	returns as xattrs */
1da177e4	278
666753c3 SF	279	if (pTcon->ses->server->ops->query_all_EAs)
	280	rc = pTcon->ses->server->ops->query_all_EAs(xid, pTcon,
	281	full_path, NULL, data, buf_size,
2baa2682	282	cifs_sb->local_nls, cifs_remap(cifs_sb));
7ffec372	283	list_ea_exit:
f99d49ad	284	kfree(full_path);
6d5786a3	285	free_xid(xid);
7ffec372	286	cifs_put_tlink(tlink);
1da177e4 LT	287	return rc;
1da177e4 LT	288	}
a9ae008f AG	289
	290	static const struct xattr_handler cifs_user_xattr_handler = {
	291	.prefix = XATTR_USER_PREFIX,
	292	.flags = XATTR_USER,
	293	.get = cifs_xattr_get,
	294	.set = cifs_xattr_set,
	295	};
	296
	297	/* os2.* attributes are treated like user.* attributes */
	298	static const struct xattr_handler cifs_os2_xattr_handler = {
	299	.prefix = XATTR_OS2_PREFIX,
	300	.flags = XATTR_USER,
	301	.get = cifs_xattr_get,
	302	.set = cifs_xattr_set,
	303	};
	304
	305	static const struct xattr_handler cifs_cifs_acl_xattr_handler = {
	306	.name = CIFS_XATTR_CIFS_ACL,
	307	.flags = XATTR_CIFS_ACL,
	308	.get = cifs_xattr_get,
	309	.set = cifs_xattr_set,
	310	};
	311
	312	static const struct xattr_handler cifs_posix_acl_access_xattr_handler = {
	313	.name = XATTR_NAME_POSIX_ACL_ACCESS,
	314	.flags = XATTR_ACL_ACCESS,
	315	.get = cifs_xattr_get,
	316	.set = cifs_xattr_set,
	317	};
	318
	319	static const struct xattr_handler cifs_posix_acl_default_xattr_handler = {
	320	.name = XATTR_NAME_POSIX_ACL_DEFAULT,
	321	.flags = XATTR_ACL_DEFAULT,
	322	.get = cifs_xattr_get,
	323	.set = cifs_xattr_set,
	324	};
	325
	326	const struct xattr_handler *cifs_xattr_handlers[] = {
	327	&cifs_user_xattr_handler,
	328	&cifs_os2_xattr_handler,
	329	&cifs_cifs_acl_xattr_handler,
	330	&cifs_posix_acl_access_xattr_handler,
	331	&cifs_posix_acl_default_xattr_handler,
	332	NULL
	333	};