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
26 #define NUM_AUTHS (6) /* number of authority fields */
27 #define SID_MAX_SUB_AUTHORITIES (15) /* max 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 */
39 #define ACCESS_ALLOWED 0
40 #define ACCESS_DENIED 1
46 * Maximum size of a string representation of a SID:
48 * The fields are unsigned values in decimal. So:
50 * u8: max 3 bytes in decimal
51 * u32: max 10 bytes in decimal
53 * "S-" + 3 bytes for version field + 4 bytes for each authority field (3 bytes
54 * per number + 1 for '-') + NULL terminator.
56 * Add 11 bytes for each subauthority field (10 bytes each + 1 for '-')
58 #define SID_STRING_BASE_SIZE (2 + 3 + (4 * NUM_AUTHS) + 1)
59 #define SID_STRING_SUBAUTH_SIZE (11) /* size of a single subauth string */
62 __le16 revision; /* revision level */
68 } __attribute__((packed));
71 __u8 revision; /* revision level */
73 __u8 authority[NUM_AUTHS];
74 __le32 sub_auth[SID_MAX_SUB_AUTHORITIES]; /* sub_auth[num_subauth] */
75 } __attribute__((packed));
77 /* size of a struct cifs_sid, sans sub_auth array */
78 #define CIFS_SID_BASE_SIZE (1 + 1 + NUM_AUTHS)
81 __le16 revision; /* revision level */
84 } __attribute__((packed));
91 struct cifs_sid sid; /* ie UUID of user or group who gets these perms */
92 } __attribute__((packed));
94 #endif /* _CIFSACL_H */