Documentation: move sharedsubtrees.txt to filesystems/
[wrt350n-kernel.git] / fs / cifs / cifsacl.h
blob93a7c3462ea27c7c3080bbc963f545ba51fe1286
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 */
31 #define READ_BIT 0x4
32 #define WRITE_BIT 0x2
33 #define EXEC_BIT 0x1
35 #define UBITSHIFT 6
36 #define GBITSHIFT 3
38 #define ACCESS_ALLOWED 0
39 #define ACCESS_DENIED 1
41 struct cifs_ntsd {
42 __le16 revision; /* revision level */
43 __le16 type;
44 __le32 osidoffset;
45 __le32 gsidoffset;
46 __le32 sacloffset;
47 __le32 dacloffset;
48 } __attribute__((packed));
50 struct cifs_sid {
51 __u8 revision; /* revision level */
52 __u8 num_subauth;
53 __u8 authority[6];
54 __le32 sub_auth[5]; /* sub_auth[num_subauth] */
55 } __attribute__((packed));
57 struct cifs_acl {
58 __le16 revision; /* revision level */
59 __le16 size;
60 __le32 num_aces;
61 } __attribute__((packed));
63 struct cifs_ace {
64 __u8 type;
65 __u8 flags;
66 __le16 size;
67 __le32 access_req;
68 struct cifs_sid sid; /* ie UUID of user or group who gets these perms */
69 } __attribute__((packed));
71 struct cifs_wksid {
72 struct cifs_sid cifssid;
73 char sidname[SIDNAMELENGTH];
74 } __attribute__((packed));
76 #ifdef CONFIG_CIFS_EXPERIMENTAL
78 extern int match_sid(struct cifs_sid *);
79 extern int compare_sids(const struct cifs_sid *, const struct cifs_sid *);
81 #endif /* CONFIG_CIFS_EXPERIMENTAL */
83 #endif /* _CIFSACL_H */