mirror of
https://github.com/torvalds/linux.git
synced 2024-11-16 17:12:06 +00:00
7b71876980
boilerplate. SGI-PV: 913862 SGI-Modid: xfs-linux:xfs-kern:23903a Signed-off-by: Nathan Scott <nathans@sgi.com>
107 lines
3.8 KiB
C
107 lines
3.8 KiB
C
/*
|
|
* Copyright (c) 2001-2002,2005 Silicon Graphics, Inc.
|
|
* All Rights Reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it would be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
#ifndef __XFS_MAC_H__
|
|
#define __XFS_MAC_H__
|
|
|
|
/*
|
|
* Mandatory Access Control
|
|
*
|
|
* Layout of a composite MAC label:
|
|
* ml_list contains the list of categories (MSEN) followed by the list of
|
|
* divisions (MINT). This is actually a header for the data structure which
|
|
* will have an ml_list with more than one element.
|
|
*
|
|
* -------------------------------
|
|
* | ml_msen_type | ml_mint_type |
|
|
* -------------------------------
|
|
* | ml_level | ml_grade |
|
|
* -------------------------------
|
|
* | ml_catcount |
|
|
* -------------------------------
|
|
* | ml_divcount |
|
|
* -------------------------------
|
|
* | category 1 |
|
|
* | . . . |
|
|
* | category N | (where N = ml_catcount)
|
|
* -------------------------------
|
|
* | division 1 |
|
|
* | . . . |
|
|
* | division M | (where M = ml_divcount)
|
|
* -------------------------------
|
|
*/
|
|
#define XFS_MAC_MAX_SETS 250
|
|
typedef struct xfs_mac_label {
|
|
__uint8_t ml_msen_type; /* MSEN label type */
|
|
__uint8_t ml_mint_type; /* MINT label type */
|
|
__uint8_t ml_level; /* Hierarchical level */
|
|
__uint8_t ml_grade; /* Hierarchical grade */
|
|
__uint16_t ml_catcount; /* Category count */
|
|
__uint16_t ml_divcount; /* Division count */
|
|
/* Category set, then Division set */
|
|
__uint16_t ml_list[XFS_MAC_MAX_SETS];
|
|
} xfs_mac_label_t;
|
|
|
|
/* MSEN label type names. Choose an upper case ASCII character. */
|
|
#define XFS_MSEN_ADMIN_LABEL 'A' /* Admin: low<admin != tcsec<high */
|
|
#define XFS_MSEN_EQUAL_LABEL 'E' /* Wildcard - always equal */
|
|
#define XFS_MSEN_HIGH_LABEL 'H' /* System High - always dominates */
|
|
#define XFS_MSEN_MLD_HIGH_LABEL 'I' /* System High, multi-level dir */
|
|
#define XFS_MSEN_LOW_LABEL 'L' /* System Low - always dominated */
|
|
#define XFS_MSEN_MLD_LABEL 'M' /* TCSEC label on a multi-level dir */
|
|
#define XFS_MSEN_MLD_LOW_LABEL 'N' /* System Low, multi-level dir */
|
|
#define XFS_MSEN_TCSEC_LABEL 'T' /* TCSEC label */
|
|
#define XFS_MSEN_UNKNOWN_LABEL 'U' /* unknown label */
|
|
|
|
/* MINT label type names. Choose a lower case ASCII character. */
|
|
#define XFS_MINT_BIBA_LABEL 'b' /* Dual of a TCSEC label */
|
|
#define XFS_MINT_EQUAL_LABEL 'e' /* Wildcard - always equal */
|
|
#define XFS_MINT_HIGH_LABEL 'h' /* High Grade - always dominates */
|
|
#define XFS_MINT_LOW_LABEL 'l' /* Low Grade - always dominated */
|
|
|
|
/* On-disk XFS extended attribute names */
|
|
#define SGI_MAC_FILE "SGI_MAC_FILE"
|
|
#define SGI_MAC_FILE_SIZE (sizeof(SGI_MAC_FILE)-1)
|
|
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#ifdef CONFIG_FS_POSIX_MAC
|
|
|
|
/* NOT YET IMPLEMENTED */
|
|
|
|
#define MACEXEC 00100
|
|
#define MACWRITE 00200
|
|
#define MACREAD 00400
|
|
|
|
struct xfs_inode;
|
|
extern int xfs_mac_iaccess(struct xfs_inode *, mode_t, cred_t *);
|
|
|
|
#define _MAC_XFS_IACCESS(i,m,c) (xfs_mac_iaccess(i,m,c))
|
|
#define _MAC_VACCESS(v,c,m) (xfs_mac_vaccess(v,c,m))
|
|
#define _MAC_EXISTS xfs_mac_vhaslabel
|
|
|
|
#else
|
|
#define _MAC_XFS_IACCESS(i,m,c) (0)
|
|
#define _MAC_VACCESS(v,c,m) (0)
|
|
#define _MAC_EXISTS (NULL)
|
|
#endif
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif /* __XFS_MAC_H__ */
|