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Cleanup missing frees on some ioctls
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1/*
2 * fs/cifs/cifsacl.h
3 *
bcb02034 4 * Copyright (c) International Business Machines Corp., 2007
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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
297647c2 25
faa65f07 26#define NUM_AUTHS (6) /* number of authority fields */
30c9d6cc 27#define SID_MAX_SUB_AUTHORITIES (15) /* max number of sub authority fields */
297647c2 28
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29#define READ_BIT 0x4
30#define WRITE_BIT 0x2
31#define EXEC_BIT 0x1
32
33#define UBITSHIFT 6
34#define GBITSHIFT 3
35
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36#define ACCESS_ALLOWED 0
37#define ACCESS_DENIED 1
38
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39#define SIDOWNER 1
40#define SIDGROUP 2
30c9d6cc 41
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42/*
43 * Security Descriptor length containing DACL with 3 ACEs (one each for
44 * owner, group and world).
45 */
46#define DEFAULT_SEC_DESC_LEN (sizeof(struct cifs_ntsd) + \
47 sizeof(struct cifs_acl) + \
48 (sizeof(struct cifs_ace) * 3))
49
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50/*
51 * Maximum size of a string representation of a SID:
52 *
53 * The fields are unsigned values in decimal. So:
54 *
55 * u8: max 3 bytes in decimal
56 * u32: max 10 bytes in decimal
57 *
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58 * "S-" + 3 bytes for version field + 15 for authority field + NULL terminator
59 *
60 * For authority field, max is when all 6 values are non-zero and it must be
61 * represented in hex. So "-0x" + 12 hex digits.
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62 *
63 * Add 11 bytes for each subauthority field (10 bytes each + 1 for '-')
30c9d6cc 64 */
193cdd8a 65#define SID_STRING_BASE_SIZE (2 + 3 + 15 + 1)
faa65f07 66#define SID_STRING_SUBAUTH_SIZE (11) /* size of a single subauth string */
9409ae58 67
442aa310 68struct cifs_ntsd {
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69 __le16 revision; /* revision level */
70 __le16 type;
71 __le32 osidoffset;
72 __le32 gsidoffset;
73 __le32 sacloffset;
74 __le32 dacloffset;
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75} __attribute__((packed));
76
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77struct cifs_sid {
78 __u8 revision; /* revision level */
4084973d 79 __u8 num_subauth;
852e2295 80 __u8 authority[NUM_AUTHS];
30c9d6cc 81 __le32 sub_auth[SID_MAX_SUB_AUTHORITIES]; /* sub_auth[num_subauth] */
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82} __attribute__((packed));
83
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84/* size of a struct cifs_sid, sans sub_auth array */
85#define CIFS_SID_BASE_SIZE (1 + 1 + NUM_AUTHS)
86
442aa310 87struct cifs_acl {
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88 __le16 revision; /* revision level */
89 __le16 size;
90 __le32 num_aces;
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91} __attribute__((packed));
92
44093ca2 93struct cifs_ace {
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94 __u8 type;
95 __u8 flags;
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96 __le16 size;
97 __le32 access_req;
44093ca2 98 struct cifs_sid sid; /* ie UUID of user or group who gets these perms */
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99} __attribute__((packed));
100
a6230af7 101#endif /* _CIFSACL_H */