sys/fs/filecorefs/filecore_extern.h

   1 /*      $NetBSD: filecore_extern.h,v 1.18 2008/06/28 01:34:05 rumble 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 #include <sys/mallocvar.h>
  80
  81 MALLOC_DECLARE(M_FILECOREMNT);
  82 MALLOC_DECLARE(M_FILECORETMP);
  83
  84 struct filecore_mnt {
  85         struct mount *fc_mountp;
  86         dev_t fc_dev;
  87         struct vnode *fc_devvp;
  88
  89         u_int32_t blksize;
  90         u_int32_t log2bsize;
  91         u_int32_t map;
  92         u_int32_t idspz;
  93         u_int32_t mask;
  94         u_int64_t nblks;
  95
  96         uid_t fc_uid;           /* uid to set as owner of the files */
  97         gid_t fc_gid;           /* gid to set as owner of the files */
  98         int fc_mntflags;
  99         struct filecore_disc_record drec;
 100 };
 101
 102 #define VFSTOFILECORE(mp)       ((struct filecore_mnt *)((mp)->mnt_data))
 103
 104 #define blkoff(fcp, loc)        ((loc) & ((fcp)->blksize-1))
 105 #define lblktosize(fcp, blk)    ((blk) << (fcp)->log2bsize)
 106 #define lblkno(fcp, loc)        ((loc) >> (fcp)->log2bsize)
 107 #define blksize(fcp, ip, lbn)   ((fcp)->blksize)
 108
 109 extern struct pool filecore_node_pool;
 110
 111 VFS_PROTOS(filecore);
 112
 113 extern int (**filecore_vnodeop_p)(void *);
 114
 115 int filecore_bbchecksum(void *);
 116 int filecore_bread(struct filecore_mnt *, u_int32_t, int,
 117     kauth_cred_t, struct buf **);
 118 int filecore_map(struct filecore_mnt *, u_int32_t, daddr_t, daddr_t *);