blob: 757cf5aec3ee18c79903aac03e92c04c1c0be726 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
/*
* fs/cifs/cifsacl.h
*
* Copyright (c) International Business Machines Corp., 2007
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _CIFSACL_H
#define _CIFSACL_H
#define NUM_AUTHS 6 /* number of authority fields */
#define NUM_SUBAUTHS 5 /* number of sub authority fields */
#define NUM_WK_SIDS 7 /* number of well known sids */
#define SIDNAMELENGTH 20 /* long enough for the ones we care about */
#define DEFSECDESCLEN 192 /* sec desc len contaiting a dacl with three aces */
#define READ_BIT 0x4
#define WRITE_BIT 0x2
#define EXEC_BIT 0x1
#define UBITSHIFT 6
#define GBITSHIFT 3
#define ACCESS_ALLOWED 0
#define ACCESS_DENIED 1
#define SIDOWNER 1
#define SIDGROUP 2
#define SIDLEN 150 /* S- 1 revision- 6 authorities- max 5 sub authorities */
#define SID_ID_MAPPED 0
#define SID_ID_PENDING 1
#define SID_MAP_EXPIRE (3600 * HZ) /* map entry expires after one hour */
#define SID_MAP_RETRY (300 * HZ) /* wait 5 minutes for next attempt to map */
struct cifs_ntsd {
__le16 revision; /* revision level */
__le16 type;
__le32 osidoffset;
__le32 gsidoffset;
__le32 sacloffset;
__le32 dacloffset;
} __attribute__((packed));
struct cifs_sid {
__u8 revision; /* revision level */
__u8 num_subauth;
__u8 authority[6];
__le32 sub_auth[5]; /* sub_auth[num_subauth] */
} __attribute__((packed));
struct cifs_acl {
__le16 revision; /* revision level */
__le16 size;
__le32 num_aces;
} __attribute__((packed));
struct cifs_ace {
__u8 type;
__u8 flags;
__le16 size;
__le32 access_req;
struct cifs_sid sid; /* ie UUID of user or group who gets these perms */
} __attribute__((packed));
struct cifs_wksid {
struct cifs_sid cifssid;
char sidname[SIDNAMELENGTH];
} __attribute__((packed));
struct cifs_sid_id {
unsigned int refcount; /* increment with spinlock, decrement without */
unsigned long id;
unsigned long time;
unsigned long state;
char *sidstr;
struct rb_node rbnode;
struct cifs_sid sid;
};
#ifdef __KERNEL__
extern struct key_type cifs_idmap_key_type;
extern const struct cred *root_cred;
#endif /* KERNEL */
extern int match_sid(struct cifs_sid *);
extern int compare_sids(const struct cifs_sid *, const struct cifs_sid *);
#endif /* _CIFSACL_H */
|
