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Steve Frenchbf820672005-12-01 22:32:42 -08001/*
2 * fs/cifs/cifsacl.h
3 *
Steve Frenchbcb02032007-09-25 16:17:24 +00004 * Copyright (c) International Business Machines Corp., 2007
Steve Frenchbf820672005-12-01 22:32:42 -08005 * 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#ifndef _CIFSACL_H
23#define _CIFSACL_H
24
Steve French297647c2007-10-12 04:11:59 +000025
Steve Frencha750e772007-10-17 22:50:39 +000026#define NUM_AUTHS 6 /* number of authority fields */
27#define NUM_SUBAUTHS 5 /* number of sub authority fields */
Steve French297647c2007-10-12 04:11:59 +000028#define NUM_WK_SIDS 7 /* number of well known sids */
29#define SIDNAMELENGTH 20 /* long enough for the ones we care about */
Steve Frenchcce246e2008-04-09 20:55:31 +000030#define DEFSECDESCLEN 192 /* sec desc len contaiting a dacl with three aces */
Steve French297647c2007-10-12 04:11:59 +000031
Steve Frencha750e772007-10-17 22:50:39 +000032#define READ_BIT 0x4
33#define WRITE_BIT 0x2
34#define EXEC_BIT 0x1
35
36#define UBITSHIFT 6
37#define GBITSHIFT 3
38
Steve French63d25832007-11-05 21:46:10 +000039#define ACCESS_ALLOWED 0
40#define ACCESS_DENIED 1
41
Steve French442aa312007-09-24 20:25:46 +000042struct cifs_ntsd {
Steve Frenchaf6f4612007-10-16 18:40:37 +000043 __le16 revision; /* revision level */
44 __le16 type;
45 __le32 osidoffset;
46 __le32 gsidoffset;
47 __le32 sacloffset;
48 __le32 dacloffset;
Steve French442aa312007-09-24 20:25:46 +000049} __attribute__((packed));
50
Steve Frenchbf820672005-12-01 22:32:42 -080051struct cifs_sid {
52 __u8 revision; /* revision level */
Steve French40849732007-10-01 19:59:01 +000053 __u8 num_subauth;
Steve Frenchbf820672005-12-01 22:32:42 -080054 __u8 authority[6];
Steve French44093ca2007-10-23 21:22:55 +000055 __le32 sub_auth[5]; /* sub_auth[num_subauth] */
Steve French442aa312007-09-24 20:25:46 +000056} __attribute__((packed));
57
58struct cifs_acl {
Steve Frenchaf6f4612007-10-16 18:40:37 +000059 __le16 revision; /* revision level */
60 __le16 size;
61 __le32 num_aces;
Steve French442aa312007-09-24 20:25:46 +000062} __attribute__((packed));
63
Steve French44093ca2007-10-23 21:22:55 +000064struct cifs_ace {
Steve French442aa312007-09-24 20:25:46 +000065 __u8 type;
66 __u8 flags;
Cyril Gorcunov8f2376a2007-10-14 17:58:43 +000067 __le16 size;
68 __le32 access_req;
Steve French44093ca2007-10-23 21:22:55 +000069 struct cifs_sid sid; /* ie UUID of user or group who gets these perms */
Steve Frenchbf820672005-12-01 22:32:42 -080070} __attribute__((packed));
71
Steve French297647c2007-10-12 04:11:59 +000072struct cifs_wksid {
73 struct cifs_sid cifssid;
74 char sidname[SIDNAMELENGTH];
75} __attribute__((packed));
76
Steve French297647c2007-10-12 04:11:59 +000077extern int match_sid(struct cifs_sid *);
Steve Frenchd61e5802007-10-26 04:32:43 +000078extern int compare_sids(const struct cifs_sid *, const struct cifs_sid *);
Steve French297647c2007-10-12 04:11:59 +000079
Steve Frencha6230af2006-01-08 20:04:55 -080080#endif /* _CIFSACL_H */