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      1 /*	$NetBSD: cd9660_extern.h,v 1.29 2024/05/19 15:41:53 tsutsui 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 /* CD-ROM Format type */
     51 enum ISO_FTYPE  { ISO_FTYPE_DEFAULT, ISO_FTYPE_9660, ISO_FTYPE_RRIP, ISO_FTYPE_ECMA };
     52 
     53 #ifndef	ISOFSMNT_ROOT
     54 #define	ISOFSMNT_ROOT	0
     55 #endif
     56 
     57 struct iso_mnt {
     58 	int im_flags;
     59 	int im_joliet_level;
     60 
     61 	struct mount *im_mountp;
     62 	dev_t im_dev;
     63 	struct vnode *im_devvp;
     64 
     65 	uid_t	im_uid;
     66 	gid_t	im_gid;
     67 	mode_t	im_fmask;
     68 	mode_t	im_dmask;
     69 
     70 	int logical_block_size;
     71 	int im_bshift;
     72 	int im_bmask;
     73 
     74 	int volume_space_size;
     75 
     76 	char root[ISODCL (157, 190)];
     77 	int root_extent;
     78 	int root_size;
     79 	enum ISO_FTYPE  iso_ftype;
     80 
     81 	int rr_skip;
     82 	int rr_skip0;
     83 };
     84 
     85 #define VFSTOISOFS(mp)	((struct iso_mnt *)((mp)->mnt_data))
     86 
     87 #define cd9660_blkoff(imp, loc)		((loc) & (imp)->im_bmask)
     88 #define cd9660_lblktosize(imp, blk)	((blk) << (imp)->im_bshift)
     89 #define cd9660_lblkno(imp, loc)	((loc) >> (imp)->im_bshift)
     90 #define cd9660_blksize(imp, ip, lbn)	((imp)->logical_block_size)
     91 
     92 #ifdef _KERNEL
     93 
     94 VFS_PROTOS(cd9660);
     95 
     96 #include <sys/mallocvar.h>
     97 MALLOC_DECLARE(M_ISOFSMNT);
     98 
     99 extern struct pool cd9660_node_pool;
    100 extern int cd9660_utf8_joliet;
    101 
    102 int cd9660_mountroot(void);
    103 
    104 extern int (**cd9660_vnodeop_p)(void *);
    105 extern int (**cd9660_specop_p)(void *);
    106 extern int (**cd9660_fifoop_p)(void *);
    107 
    108 ino_t isodirino(struct iso_directory_record *, struct iso_mnt *);
    109 #endif /* _KERNEL */
    110 
    111 int isochar(const u_char *, const u_char *, int, u_int16_t *);
    112 int isofncmp(const u_char *, size_t, const u_char *, size_t, int);
    113 void isofntrans(const u_char *, int, u_char *, u_short *, int, int, int, int);
    114 
    115 #endif /* _ISOFS_CD9660_CD9660_EXTERN_H_ */
    116