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cd9660_extern.h revision 1.23 
      1 /*	$NetBSD: cd9660_extern.h,v 1.23 2008/02/27 19:43:36 matt Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1994
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * This code is derived from software contributed to Berkeley
      8  * by Pace Willisson (pace (at) blitz.com).  The Rock Ridge Extension
      9  * Support code is derived from software contributed to Berkeley
     10  * by Atsushi Murai (amurai (at) spec.co.jp).
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  * 3. Neither the name of the University nor the names of its contributors
     21  *    may be used to endorse or promote products derived from this software
     22  *    without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  *
     36  *	@(#)iso.h	8.4 (Berkeley) 12/5/94
     37  */
     38 
     39 /*
     40  * Definitions used in the kernel for cd9660 file system support.
     41  */
     42 #ifndef _ISOFS_CD9660_CD9660_EXTERN_H_
     43 #define _ISOFS_CD9660_CD9660_EXTERN_H_
     44 
     45 /*
     46  * Sysctl values for the cd9660 filesystem.
     47  */
     48 #define CD9660_UTF8_JOLIET	1	/* UTF-8 encode Joliet file names */
     49 
     50 #define CD9660_NAMES { \
     51         { 0, 0 }, \
     52         { "utf8_joliet", CTLTYPE_INT }, \
     53 }
     54 
     55 
     56 /* CD-ROM Format type */
     57 enum ISO_FTYPE  { ISO_FTYPE_DEFAULT, ISO_FTYPE_9660, ISO_FTYPE_RRIP, ISO_FTYPE_ECMA };
     58 
     59 #ifndef	ISOFSMNT_ROOT
     60 #define	ISOFSMNT_ROOT	0
     61 #endif
     62 
     63 struct iso_mnt {
     64 	int im_flags;
     65 	int im_joliet_level;
     66 
     67 	struct mount *im_mountp;
     68 	dev_t im_dev;
     69 	struct vnode *im_devvp;
     70 
     71 	int logical_block_size;
     72 	int im_bshift;
     73 	int im_bmask;
     74 
     75 	int volume_space_size;
     76 
     77 	char root[ISODCL (157, 190)];
     78 	int root_extent;
     79 	int root_size;
     80 	enum ISO_FTYPE  iso_ftype;
     81 
     82 	int rr_skip;
     83 	int rr_skip0;
     84 };
     85 
     86 #define VFSTOISOFS(mp)	((struct iso_mnt *)((mp)->mnt_data))
     87 
     88 #define blkoff(imp, loc)	((loc) & (imp)->im_bmask)
     89 #define lblktosize(imp, blk)	((blk) << (imp)->im_bshift)
     90 #define lblkno(imp, loc)	((loc) >> (imp)->im_bshift)
     91 #define blksize(imp, ip, lbn)	((imp)->logical_block_size)
     92 
     93 #ifdef _KERNEL
     94 
     95 VFS_PROTOS(cd9660);
     96 
     97 #include <sys/mallocvar.h>
     98 MALLOC_DECLARE(M_ISOFSMNT);
     99 
    100 extern struct pool cd9660_node_pool;
    101 extern int cd9660_utf8_joliet;
    102 
    103 #ifdef SYSCTL_SETUP_PROTO
    104 SYSCTL_SETUP_PROTO(sysctl_vfs_cd9660_setup);
    105 #endif /* SYSCTL_SETUP_PROTO */
    106 
    107 int cd9660_mountroot(void);
    108 
    109 extern int (**cd9660_vnodeop_p)(void *);
    110 extern int (**cd9660_specop_p)(void *);
    111 extern int (**cd9660_fifoop_p)(void *);
    112 
    113 int isochar(const u_char *, const u_char *, int, u_int16_t *);
    114 int isofncmp(const u_char *, size_t, const u_char *, size_t, int);
    115 void isofntrans(const u_char *, int, u_char *, u_short *, int, int, int, int);
    116 ino_t isodirino(struct iso_directory_record *, struct iso_mnt *);
    117 #endif /* _KERNEL */
    118 
    119 #endif /* _ISOFS_CD9660_CD9660_EXTERN_H_ */
    120