xref: /netbsd-src/sys/fs/filecorefs/filecore_extern.h (revision e1610ba4cb3272a042c9339e926cbec0aa0715b1)
1 /*	$NetBSD: filecore_extern.h,v 1.22 2013/06/23 07:28:36 dholland Exp $	*/
2 
3 /*-
4  * Copyright (c) 1994 The Regents of the University of California.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. Neither the name of the University nor the names of its contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  *
31  *	filecore_extern.h	1.1	1998/6/26
32  */
33 
34 /*-
35  * Copyright (c) 1998 Andrew McMurry
36  *
37  * Redistribution and use in source and binary forms, with or without
38  * modification, are permitted provided that the following conditions
39  * are met:
40  * 1. Redistributions of source code must retain the above copyright
41  *    notice, this list of conditions and the following disclaimer.
42  * 2. Redistributions in binary form must reproduce the above copyright
43  *    notice, this list of conditions and the following disclaimer in the
44  *    documentation and/or other materials provided with the distribution.
45  * 3. All advertising materials mentioning features or use of this software
46  *    must display the following acknowledgement:
47  *	This product includes software developed by the University of
48  *	California, Berkeley and its contributors.
49  * 4. Neither the name of the University nor the names of its contributors
50  *    may be used to endorse or promote products derived from this software
51  *    without specific prior written permission.
52  *
53  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
54  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
55  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
56  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
57  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
58  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
59  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
60  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
61  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
62  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
63  * SUCH DAMAGE.
64  *
65  *	filecore_extern.h	1.1	1998/6/26
66  */
67 
68 /*
69  * Definitions used in the kernel for Acorn Filecore file system support.
70  */
71 #if !defined(_KERNEL)
72 #error not supposed to be exposed to userland.
73 #endif
74 
75 #ifndef	FILECOREMNT_ROOT
76 #define	FILECOREMNT_ROOT	0
77 #endif
78 
79 struct filecore_mnt {
80 	struct mount *fc_mountp;
81 	dev_t fc_dev;
82 	struct vnode *fc_devvp;
83 
84 	u_int32_t blksize;
85 	u_int32_t log2bsize;
86 	u_int32_t map;
87 	u_int32_t idspz;
88 	u_int32_t mask;
89 	u_int64_t nblks;
90 
91 	uid_t fc_uid;		/* uid to set as owner of the files */
92 	gid_t fc_gid;		/* gid to set as owner of the files */
93 	int fc_mntflags;
94 	struct filecore_disc_record drec;
95 };
96 
97 #define VFSTOFILECORE(mp)	((struct filecore_mnt *)((mp)->mnt_data))
98 
99 #define filecore_blkoff(fcp, loc)	((loc) & ((fcp)->blksize-1))
100 #define filecore_lblktosize(fcp, blk)	((blk) << (fcp)->log2bsize)
101 #define filecore_lblkno(fcp, loc)	((loc) >> (fcp)->log2bsize)
102 #define filecore_blksize(fcp, ip, lbn)	((fcp)->blksize)
103 
104 extern struct pool filecore_node_pool;
105 
106 VFS_PROTOS(filecore);
107 
108 extern int (**filecore_vnodeop_p)(void *);
109 
110 int filecore_bbchecksum(void *);
111 int filecore_bread(struct filecore_mnt *, u_int32_t, int,
112     kauth_cred_t, struct buf **);
113 int filecore_map(struct filecore_mnt *, u_int32_t, daddr_t, daddr_t *);
114