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-rw-r--r--fs/cifs/cifsacl.h84
1 files changed, 84 insertions, 0 deletions
diff --git a/fs/cifs/cifsacl.h b/fs/cifs/cifsacl.h
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+/*
+ * 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
+
+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));
+
+#ifdef CONFIG_CIFS_EXPERIMENTAL
+
+extern int match_sid(struct cifs_sid *);
+extern int compare_sids(const struct cifs_sid *, const struct cifs_sid *);
+
+#endif /* CONFIG_CIFS_EXPERIMENTAL */
+
+#endif /* _CIFSACL_H */