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cd9660_extern.h revision 1.8 
      1 /*	$NetBSD: cd9660_extern.h,v 1.8 2004/04/21 01:05:37 christos 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 
     43 #include <sys/mallocvar.h>
     44 MALLOC_DECLARE(M_ISOFSMNT);
     45 
     46 /* CD-ROM Format type */
     47 enum ISO_FTYPE  { ISO_FTYPE_DEFAULT, ISO_FTYPE_9660, ISO_FTYPE_RRIP, ISO_FTYPE_ECMA };
     48 
     49 #ifndef	ISOFSMNT_ROOT
     50 #define	ISOFSMNT_ROOT	0
     51 #endif
     52 
     53 struct iso_mnt {
     54 	int im_flags;
     55 	int im_joliet_level;
     56 
     57 	struct mount *im_mountp;
     58 	dev_t im_dev;
     59 	struct vnode *im_devvp;
     60 
     61 	int logical_block_size;
     62 	int im_bshift;
     63 	int im_bmask;
     64 
     65 	int volume_space_size;
     66 	struct netexport im_export;
     67 
     68 	char root[ISODCL (157, 190)];
     69 	int root_extent;
     70 	int root_size;
     71 	enum ISO_FTYPE  iso_ftype;
     72 
     73 	int rr_skip;
     74 	int rr_skip0;
     75 };
     76 
     77 #define VFSTOISOFS(mp)	((struct iso_mnt *)((mp)->mnt_data))
     78 
     79 #define blkoff(imp, loc)	((loc) & (imp)->im_bmask)
     80 #define lblktosize(imp, blk)	((blk) << (imp)->im_bshift)
     81 #define lblkno(imp, loc)	((loc) >> (imp)->im_bshift)
     82 #define blksize(imp, ip, lbn)	((imp)->logical_block_size)
     83 
     84 extern struct pool cd9660_node_pool;
     85 
     86 int cd9660_mount __P((struct mount *,
     87 	    const char *, void *, struct nameidata *, struct proc *));
     88 int cd9660_start __P((struct mount *, int, struct proc *));
     89 int cd9660_unmount __P((struct mount *, int, struct proc *));
     90 int cd9660_root __P((struct mount *, struct vnode **));
     91 int cd9660_quotactl __P((struct mount *, int, uid_t, caddr_t, struct proc *));
     92 int cd9660_statvfs __P((struct mount *, struct statvfs *, struct proc *));
     93 int cd9660_sync __P((struct mount *, int, struct ucred *, struct proc *));
     94 int cd9660_vget __P((struct mount *, ino_t, struct vnode **));
     95 int cd9660_fhtovp __P((struct mount *, struct fid *, struct vnode **));
     96 int cd9660_check_export __P((struct mount *, struct mbuf *, int *,
     97 	    struct ucred **));
     98 int cd9660_vptofh __P((struct vnode *, struct fid *));
     99 void cd9660_init __P((void));
    100 void cd9660_reinit __P((void));
    101 void cd9660_done __P((void));
    102 
    103 int cd9660_mountroot __P((void));
    104 
    105 extern int (**cd9660_vnodeop_p) __P((void *));
    106 extern int (**cd9660_specop_p) __P((void *));
    107 extern int (**cd9660_fifoop_p) __P((void *));
    108 
    109 int isochar __P((const u_char *, const u_char *, int, u_char *));
    110 int isofncmp __P((const u_char *, int, const u_char *, int, int));
    111 void isofntrans __P((u_char *, int, u_char *, u_short *, int, int, int, int));
    112 ino_t isodirino __P((struct iso_directory_record *, struct iso_mnt *));
    113