Merge branch 'media_fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
[cris-mirror.git] / fs / cifs / cifsacl.h
blobc4ae7d0365631f5d01db610ef3153502f2531c9d
1 /*
2 * fs/cifs/cifsacl.h
4 * Copyright (c) International Business Machines Corp., 2007
5 * Author(s): Steve French (sfrench@us.ibm.com)
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.
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.
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
22 #ifndef _CIFSACL_H
23 #define _CIFSACL_H
26 #define NUM_AUTHS 6 /* number of authority fields */
27 #define NUM_SUBAUTHS 5 /* number of sub authority fields */
28 #define NUM_WK_SIDS 7 /* number of well known sids */
29 #define SIDNAMELENGTH 20 /* long enough for the ones we care about */
30 #define DEFSECDESCLEN 192 /* sec desc len contaiting a dacl with three aces */
32 #define READ_BIT 0x4
33 #define WRITE_BIT 0x2
34 #define EXEC_BIT 0x1
36 #define UBITSHIFT 6
37 #define GBITSHIFT 3
39 #define ACCESS_ALLOWED 0
40 #define ACCESS_DENIED 1
42 struct cifs_ntsd {
43 __le16 revision; /* revision level */
44 __le16 type;
45 __le32 osidoffset;
46 __le32 gsidoffset;
47 __le32 sacloffset;
48 __le32 dacloffset;
49 } __attribute__((packed));
51 struct cifs_sid {
52 __u8 revision; /* revision level */
53 __u8 num_subauth;
54 __u8 authority[6];
55 __le32 sub_auth[5]; /* sub_auth[num_subauth] */
56 } __attribute__((packed));
58 struct cifs_acl {
59 __le16 revision; /* revision level */
60 __le16 size;
61 __le32 num_aces;
62 } __attribute__((packed));
64 struct cifs_ace {
65 __u8 type;
66 __u8 flags;
67 __le16 size;
68 __le32 access_req;
69 struct cifs_sid sid; /* ie UUID of user or group who gets these perms */
70 } __attribute__((packed));
72 struct cifs_wksid {
73 struct cifs_sid cifssid;
74 char sidname[SIDNAMELENGTH];
75 } __attribute__((packed));
77 extern int match_sid(struct cifs_sid *);
78 extern int compare_sids(const struct cifs_sid *, const struct cifs_sid *);
80 #endif /* _CIFSACL_H */