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1 | /* | |
2 | * fs/cifs/cifsacl.h | |
3 | * | |
4 | * Copyright (c) International Business Machines Corp., 2007 | |
5 | * 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 | ||
25 | ||
26 | #define NUM_WK_SIDS 7 /* number of well known sids */ | |
27 | #define SIDNAMELENGTH 20 /* long enough for the ones we care about */ | |
28 | ||
29 | struct cifs_ntsd { | |
30 | __u16 revision; /* revision level */ | |
31 | __u16 type; | |
32 | __u32 osidoffset; | |
33 | __u32 gsidoffset; | |
34 | __u32 sacloffset; | |
35 | __u32 dacloffset; | |
36 | } __attribute__((packed)); | |
37 | ||
38 | struct cifs_sid { | |
39 | __u8 revision; /* revision level */ | |
40 | __u8 num_subauth; | |
41 | __u8 authority[6]; | |
42 | __u32 sub_auth[5]; /* sub_auth[num_subauth] */ | |
43 | } __attribute__((packed)); | |
44 | ||
45 | struct cifs_acl { | |
46 | __u16 revision; /* revision level */ | |
47 | __u16 size; | |
48 | __u32 num_aces; | |
49 | } __attribute__((packed)); | |
50 | ||
51 | struct cifs_ntace { /* first part of ACE which contains perms */ | |
52 | __u8 type; | |
53 | __u8 flags; | |
54 | __le16 size; | |
55 | __le32 access_req; | |
56 | } __attribute__((packed)); | |
57 | ||
58 | struct cifs_ace { /* last part of ACE which includes user info */ | |
59 | __u8 revision; /* revision level */ | |
60 | __u8 num_subauth; | |
61 | __u8 authority[6]; | |
62 | __u32 sub_auth[5]; | |
63 | } __attribute__((packed)); | |
64 | ||
65 | struct cifs_wksid { | |
66 | struct cifs_sid cifssid; | |
67 | char sidname[SIDNAMELENGTH]; | |
68 | } __attribute__((packed)); | |
69 | ||
70 | #ifdef CONFIG_CIFS_EXPERIMENTAL | |
71 | ||
72 | extern struct cifs_wksid wksidarr[NUM_WK_SIDS]; | |
73 | extern int match_sid(struct cifs_sid *); | |
74 | extern int compare_sids(struct cifs_sid *, struct cifs_sid *); | |
75 | ||
76 | #endif /* CONFIG_CIFS_EXPERIMENTAL */ | |
77 | ||
78 | #endif /* _CIFSACL_H */ |