1 /*
2  *  Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
3  *  Copyright (C) 2007 The Regents of the University of California.
4  *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
5  *  Written by Brian Behlendorf <behlendorf1@llnl.gov>.
6  *  UCRL-CODE-235197
7  *
8  *  This file is part of the SPL, Solaris Porting Layer.
9  *
10  *  The SPL is free software; you can redistribute it and/or modify it
11  *  under the terms of the GNU General Public License as published by the
12  *  Free Software Foundation; either version 2 of the License, or (at your
13  *  option) any later version.
14  *
15  *  The SPL is distributed in the hope that it will be useful, but WITHOUT
16  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
18  *  for more details.
19  *
20  *  You should have received a copy of the GNU General Public License along
21  *  with the SPL.  If not, see <http://www.gnu.org/licenses/>.
22  */
23 
24 #ifndef _SPL_VNODE_H
25 #define	_SPL_VNODE_H
26 
27 #include <linux/module.h>
28 #include <linux/syscalls.h>
29 #include <linux/fcntl.h>
30 #include <linux/buffer_head.h>
31 #include <linux/dcache.h>
32 #include <linux/namei.h>
33 #include <linux/file.h>
34 #include <linux/fs.h>
35 #include <linux/fs_struct.h>
36 #include <linux/mount.h>
37 #include <sys/kmem.h>
38 #include <sys/mutex.h>
39 #include <sys/types.h>
40 #include <sys/time.h>
41 #include <sys/uio.h>
42 #include <sys/user.h>
43 
44 /*
45  * Prior to linux-2.6.33 only O_DSYNC semantics were implemented and
46  * they used the O_SYNC flag.  As of linux-2.6.33 the this behavior
47  * was properly split in to O_SYNC and O_DSYNC respectively.
48  */
49 #ifndef O_DSYNC
50 #define	O_DSYNC		O_SYNC
51 #endif
52 
53 #define	F_FREESP	11 	/* Free file space */
54 
55 
56 #if defined(SEEK_HOLE) && defined(SEEK_DATA)
57 #define	F_SEEK_DATA	SEEK_DATA
58 #define	F_SEEK_HOLE	SEEK_HOLE
59 #endif
60 
61 /*
62  * The vnode AT_ flags are mapped to the Linux ATTR_* flags.
63  * This allows them to be used safely with an iattr structure.
64  * The AT_XVATTR flag has been added and mapped to the upper
65  * bit range to avoid conflicting with the standard Linux set.
66  */
67 #undef AT_UID
68 #undef AT_GID
69 
70 #define	AT_MODE		ATTR_MODE
71 #define	AT_UID		ATTR_UID
72 #define	AT_GID		ATTR_GID
73 #define	AT_SIZE		ATTR_SIZE
74 #define	AT_ATIME	ATTR_ATIME
75 #define	AT_MTIME	ATTR_MTIME
76 #define	AT_CTIME	ATTR_CTIME
77 
78 #define	ATTR_XVATTR	(1U << 31)
79 #define	AT_XVATTR	ATTR_XVATTR
80 
81 #define	ATTR_IATTR_MASK	(ATTR_MODE | ATTR_UID | ATTR_GID | ATTR_SIZE | \
82 			ATTR_ATIME | ATTR_MTIME | ATTR_CTIME | ATTR_FILE)
83 
84 #define	CRCREAT		0x01
85 #define	RMFILE		0x02
86 
87 #define	B_INVAL		0x01
88 #define	B_TRUNC		0x02
89 
90 #define	LOOKUP_DIR		0x01
91 #define	LOOKUP_XATTR		0x02
92 #define	CREATE_XATTR_DIR	0x04
93 #define	ATTR_NOACLCHECK		0x20
94 
95 typedef struct vattr {
96 	uint32_t	va_mask;	/* attribute bit-mask */
97 	ushort_t	va_mode;	/* acc mode */
98 	uid_t		va_uid;		/* owner uid */
99 	gid_t		va_gid;		/* owner gid */
100 	long		va_fsid;	/* fs id */
101 	long		va_nodeid;	/* node # */
102 	uint32_t	va_nlink;	/* # links */
103 	uint64_t	va_size;	/* file size */
104 	inode_timespec_t va_atime;	/* last acc */
105 	inode_timespec_t va_mtime;	/* last mod */
106 	inode_timespec_t va_ctime;	/* last chg */
107 	dev_t		va_rdev;	/* dev */
108 	uint64_t	va_nblocks;	/* space used */
109 	uint32_t	va_blksize;	/* block size */
110 	struct dentry	*va_dentry;	/* dentry to wire */
111 } vattr_t;
112 #endif /* SPL_VNODE_H */
113