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cd9660_extern.h revision 1.3 
      1 /*	$NetBSD: cd9660_extern.h,v 1.3 2003/06/28 14:21:49 darrenr 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. All advertising materials mentioning features or use of this software
     21  *    must display the following acknowledgement:
     22  *	This product includes software developed by the University of
     23  *	California, Berkeley and its contributors.
     24  * 4. Neither the name of the University nor the names of its contributors
     25  *    may be used to endorse or promote products derived from this software
     26  *    without specific prior written permission.
     27  *
     28  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     30  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     31  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     32  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     36  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     37  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     38  * SUCH DAMAGE.
     39  *
     40  *	@(#)iso.h	8.4 (Berkeley) 12/5/94
     41  */
     42 
     43 /*
     44  * Definitions used in the kernel for cd9660 file system support.
     45  */
     46 
     47 #include <sys/mallocvar.h>
     48 MALLOC_DECLARE(M_ISOFSMNT);
     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 	int logical_block_size;
     66 	int im_bshift;
     67 	int im_bmask;
     68 
     69 	int volume_space_size;
     70 	struct netexport im_export;
     71 
     72 	char root[ISODCL (157, 190)];
     73 	int root_extent;
     74 	int root_size;
     75 	enum ISO_FTYPE  iso_ftype;
     76 
     77 	int rr_skip;
     78 	int rr_skip0;
     79 };
     80 
     81 #define VFSTOISOFS(mp)	((struct iso_mnt *)((mp)->mnt_data))
     82 
     83 #define blkoff(imp, loc)	((loc) & (imp)->im_bmask)
     84 #define lblktosize(imp, blk)	((blk) << (imp)->im_bshift)
     85 #define lblkno(imp, loc)	((loc) >> (imp)->im_bshift)
     86 #define blksize(imp, ip, lbn)	((imp)->logical_block_size)
     87 
     88 extern struct pool cd9660_node_pool;
     89 
     90 int cd9660_mount __P((struct mount *,
     91 	    const char *, void *, struct nameidata *, struct lwp *));
     92 int cd9660_start __P((struct mount *, int, struct lwp *));
     93 int cd9660_unmount __P((struct mount *, int, struct lwp *));
     94 int cd9660_root __P((struct mount *, struct vnode **, struct lwp *));
     95 int cd9660_quotactl __P((struct mount *, int, uid_t, caddr_t, struct lwp *));
     96 int cd9660_statfs __P((struct mount *, struct statfs *, struct lwp *));
     97 int cd9660_sync __P((struct mount *, int, struct ucred *, struct lwp *));
     98 int cd9660_vget __P((struct mount *, ino_t, struct vnode **, struct lwp *));
     99 int cd9660_fhtovp __P((struct mount *, struct fid *, struct vnode **,
    100 	    struct lwp *));
    101 int cd9660_check_export __P((struct mount *, struct mbuf *, int *,
    102 	    struct ucred **));
    103 int cd9660_vptofh __P((struct vnode *, struct fid *));
    104 void cd9660_init __P((void));
    105 void cd9660_reinit __P((void));
    106 void cd9660_done __P((void));
    107 int cd9660_sysctl __P((int *, u_int, void *, size_t *, void *, size_t,
    108 			struct lwp *));
    109 
    110 int cd9660_mountroot __P((void));
    111 
    112 extern int (**cd9660_vnodeop_p) __P((void *));
    113 extern int (**cd9660_specop_p) __P((void *));
    114 extern int (**cd9660_fifoop_p) __P((void *));
    115 
    116 int isochar __P((const u_char *, const u_char *, int, u_char *));
    117 int isofncmp __P((const u_char *, int, const u_char *, int, int));
    118 void isofntrans __P((u_char *, int, u_char *, u_short *, int, int, int, int));
    119 ino_t isodirino __P((struct iso_directory_record *, struct iso_mnt *));
    120