85 lines
2.3 KiB
C
85 lines
2.3 KiB
C
/*
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* fs/cifs/cifsacl.h
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*
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* Copyright (c) International Business Machines Corp., 2007
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* Author(s): Steve French (sfrench@us.ibm.com)
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*
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* This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published
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* by the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _CIFSACL_H
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#define _CIFSACL_H
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#define NUM_AUTHS 6 /* number of authority fields */
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#define NUM_SUBAUTHS 5 /* number of sub authority fields */
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#define NUM_WK_SIDS 7 /* number of well known sids */
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#define SIDNAMELENGTH 20 /* long enough for the ones we care about */
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#define DEFSECDESCLEN 192 /* sec desc len contaiting a dacl with three aces */
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#define READ_BIT 0x4
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#define WRITE_BIT 0x2
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#define EXEC_BIT 0x1
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#define UBITSHIFT 6
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#define GBITSHIFT 3
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#define ACCESS_ALLOWED 0
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#define ACCESS_DENIED 1
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struct cifs_ntsd {
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__le16 revision; /* revision level */
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__le16 type;
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__le32 osidoffset;
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__le32 gsidoffset;
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__le32 sacloffset;
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__le32 dacloffset;
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} __attribute__((packed));
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struct cifs_sid {
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__u8 revision; /* revision level */
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__u8 num_subauth;
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__u8 authority[6];
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__le32 sub_auth[5]; /* sub_auth[num_subauth] */
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} __attribute__((packed));
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struct cifs_acl {
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__le16 revision; /* revision level */
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__le16 size;
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__le32 num_aces;
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} __attribute__((packed));
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struct cifs_ace {
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__u8 type;
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__u8 flags;
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__le16 size;
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__le32 access_req;
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struct cifs_sid sid; /* ie UUID of user or group who gets these perms */
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} __attribute__((packed));
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struct cifs_wksid {
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struct cifs_sid cifssid;
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char sidname[SIDNAMELENGTH];
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} __attribute__((packed));
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#ifdef CONFIG_CIFS_EXPERIMENTAL
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extern int match_sid(struct cifs_sid *);
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extern int compare_sids(const struct cifs_sid *, const struct cifs_sid *);
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#endif /* CONFIG_CIFS_EXPERIMENTAL */
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#endif /* _CIFSACL_H */
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