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posix_acl: uapi header split 

Export the base definitions and the xattr representation of POSIX ACLs
to user space.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Andreas Gruenbacher 2016-09-27 13:03:23 +02:00 committed by Al Viro
parent 2211d5ba5c
commit bc8bcf3b15
5 changed files with 81 additions and 38 deletions
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22
include/linux/posix_acl.h
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@ -11,27 +11,7 @@
#include <linux/bug.h>
#include <linux/slab.h>
#include <linux/rcupdate.h>
#define ACL_UNDEFINED_ID (-1)
/* a_type field in acl_user_posix_entry_t */
#define ACL_TYPE_ACCESS (0x8000)
#define ACL_TYPE_DEFAULT (0x4000)
/* e_tag entry in struct posix_acl_entry */
#define ACL_USER_OBJ (0x01)
#define ACL_USER (0x02)
#define ACL_GROUP_OBJ (0x04)
#define ACL_GROUP (0x08)
#define ACL_MASK (0x10)
#define ACL_OTHER (0x20)
/* permissions in the e_perm field */
#define ACL_READ (0x04)
#define ACL_WRITE (0x02)
#define ACL_EXECUTE (0x01)
//#define ACL_ADD (0x08)
//#define ACL_DELETE (0x10)
#include <uapi/linux/posix_acl.h>
struct posix_acl_entry {
short e_tag;

18
include/linux/posix_acl_xattr.h
View File

@ -10,25 +10,9 @@
#define _POSIX_ACL_XATTR_H
#include <uapi/linux/xattr.h>
#include <uapi/linux/posix_acl_xattr.h>
#include <linux/posix_acl.h>
/* Supported ACL a_version fields */
#define POSIX_ACL_XATTR_VERSION 0x0002
/* An undefined entry e_id value */
#define ACL_UNDEFINED_ID (-1)
struct posix_acl_xattr_entry {
__le16 e_tag;
__le16 e_perm;
__le32 e_id;
};
struct posix_acl_xattr_header {
__le32 a_version;
};
static inline size_t
posix_acl_xattr_size(int count)
{

2
include/uapi/linux/Kbuild
View File

@ -335,6 +335,8 @@ header-y += pkt_cls.h
header-y += pkt_sched.h
header-y += pmu.h
header-y += poll.h
header-y += posix_acl.h
header-y += posix_acl_xattr.h
header-y += posix_types.h
header-y += ppdev.h
header-y += ppp-comp.h

39
include/uapi/linux/posix_acl.h Normal file
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@ -0,0 +1,39 @@
/*
* Copyright (C) 2002 Andreas Gruenbacher <a.gruenbacher@computer.org>
* Copyright (C) 2016 Red Hat, Inc.
*
* This file 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 file 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.
*
*/
#ifndef __UAPI_POSIX_ACL_H
#define __UAPI_POSIX_ACL_H
#define ACL_UNDEFINED_ID (-1)
/* a_type field in acl_user_posix_entry_t */
#define ACL_TYPE_ACCESS (0x8000)
#define ACL_TYPE_DEFAULT (0x4000)
/* e_tag entry in struct posix_acl_entry */
#define ACL_USER_OBJ (0x01)
#define ACL_USER (0x02)
#define ACL_GROUP_OBJ (0x04)
#define ACL_GROUP (0x08)
#define ACL_MASK (0x10)
#define ACL_OTHER (0x20)
/* permissions in the e_perm field */
#define ACL_READ (0x04)
#define ACL_WRITE (0x02)
#define ACL_EXECUTE (0x01)
#endif /* __UAPI_POSIX_ACL_H */

38
include/uapi/linux/posix_acl_xattr.h Normal file
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@ -0,0 +1,38 @@
/*
* Copyright (C) 2002 Andreas Gruenbacher <a.gruenbacher@computer.org>
* Copyright (C) 2016 Red Hat, Inc.
*
* This file 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 file 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.
*
*/
#ifndef __UAPI_POSIX_ACL_XATTR_H
#define __UAPI_POSIX_ACL_XATTR_H
#include <linux/types.h>
/* Supported ACL a_version fields */
#define POSIX_ACL_XATTR_VERSION 0x0002
/* An undefined entry e_id value */
#define ACL_UNDEFINED_ID (-1)
struct posix_acl_xattr_entry {
__le16 e_tag;
__le16 e_perm;
__le32 e_id;
};
struct posix_acl_xattr_header {
__le32 a_version;
};
#endif /* __UAPI_POSIX_ACL_XATTR_H */