[mirror_ubuntu-artful-kernel.git] / fs / cifs / cifsacl.h

/*
 *   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 compare_sids(const struct cifs_sid *, const struct cifs_sid *);

#endif /* _CIFSACL_H */
Commit	Line	Data
bf820679 SF	1	/*
	2	* fs/cifs/cifsacl.h
	3	*
bcb02034	4	* Copyright (c) International Business Machines Corp., 2007
bf820679 SF	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
a750e77c SF	26	#define NUM_AUTHS 6 /* number of authority fields */
a750e77c SF	27	#define NUM_SUBAUTHS 5 /* number of sub authority fields */
297647c2 SF	28	#define NUM_WK_SIDS 7 /* number of well known sids */
297647c2 SF	29	#define SIDNAMELENGTH 20 /* long enough for the ones we care about */
cce246ee	30	#define DEFSECDESCLEN 192 /* sec desc len contaiting a dacl with three aces */
297647c2	31
a750e77c SF	32	#define READ_BIT 0x4
	33	#define WRITE_BIT 0x2
	34	#define EXEC_BIT 0x1
	35
	36	#define UBITSHIFT 6
	37	#define GBITSHIFT 3
	38
63d2583f SF	39	#define ACCESS_ALLOWED 0
	40	#define ACCESS_DENIED 1
	41
9409ae58 SP	42	#define SIDOWNER 1
	43	#define SIDGROUP 2
	44	#define SIDLEN 150 /* S- 1 revision- 6 authorities- max 5 sub authorities */
	45
	46	#define SID_ID_MAPPED 0
	47	#define SID_ID_PENDING 1
	48	#define SID_MAP_EXPIRE (3600 * HZ) /* map entry expires after one hour */
	49	#define SID_MAP_RETRY (300 * HZ) /* wait 5 minutes for next attempt to map */
	50
442aa310	51	struct cifs_ntsd {
af6f4612 SF	52	__le16 revision; /* revision level */
	53	__le16 type;
	54	__le32 osidoffset;
	55	__le32 gsidoffset;
	56	__le32 sacloffset;
	57	__le32 dacloffset;
442aa310 SF	58	} __attribute__((packed));
442aa310 SF	59
bf820679 SF	60	struct cifs_sid {
bf820679 SF	61	__u8 revision; /* revision level */
4084973d	62	__u8 num_subauth;
442aa310	63	__u8 authority[6];
44093ca2	64	__le32 sub_auth[5]; /* sub_auth[num_subauth] */
442aa310 SF	65	} __attribute__((packed));
	66
	67	struct cifs_acl {
af6f4612 SF	68	__le16 revision; /* revision level */
	69	__le16 size;
	70	__le32 num_aces;
442aa310 SF	71	} __attribute__((packed));
442aa310 SF	72
44093ca2	73	struct cifs_ace {
442aa310 SF	74	__u8 type;
442aa310 SF	75	__u8 flags;
8f2376ad CG	76	__le16 size;
8f2376ad CG	77	__le32 access_req;
44093ca2	78	struct cifs_sid sid; /* ie UUID of user or group who gets these perms */
297647c2 SF	79	} __attribute__((packed));
	80
	81	struct cifs_wksid {
	82	struct cifs_sid cifssid;
	83	char sidname[SIDNAMELENGTH];
bf820679 SF	84	} __attribute__((packed));
bf820679 SF	85
9409ae58 SP	86	struct cifs_sid_id {
	87	unsigned int refcount; /* increment with spinlock, decrement without */
	88	unsigned long id;
	89	unsigned long time;
	90	unsigned long state;
	91	char *sidstr;
	92	struct rb_node rbnode;
	93	struct cifs_sid sid;
	94	};
	95
	96	#ifdef __KERNEL__
	97	extern struct key_type cifs_idmap_key_type;
	98	extern const struct cred *root_cred;
	99	#endif /* KERNEL */
	100
d61e5808	101	extern int compare_sids(const struct cifs_sid , const struct cifs_sid );
297647c2	102
a6230af7	103	#endif /* _CIFSACL_H */