06e79831b1
device block which was stopping symbolic links working. cd9660_readdir was incorrectly casting a pointer to the d_namlen field of a struct dirent to a (u_short*) which caused the directory entries "." and ".." to read incorrectly. Submitted by: dfr
261 lines
8.7 KiB
C
261 lines
8.7 KiB
C
/*-
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* Copyright (c) 1994
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley
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* by Pace Willisson (pace@blitz.com). The Rock Ridge Extension
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* Support code is derived from software contributed to Berkeley
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* by Atsushi Murai (amurai@spec.co.jp).
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)iso.h 8.2 (Berkeley) 1/23/94
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* $Id: iso.h,v 1.2 1994/08/02 07:41:38 davidg Exp $
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*/
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#define ISODCL(from, to) (to - from + 1)
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struct iso_volume_descriptor {
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char type[ISODCL(1,1)]; /* 711 */
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char id[ISODCL(2,6)];
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char version[ISODCL(7,7)];
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char data[ISODCL(8,2048)];
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};
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/* volume descriptor types */
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#define ISO_VD_PRIMARY 1
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#define ISO_VD_END 255
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#define ISO_STANDARD_ID "CD001"
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#define ISO_ECMA_ID "CDW01"
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struct iso_primary_descriptor {
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char type [ISODCL ( 1, 1)]; /* 711 */
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char id [ISODCL ( 2, 6)];
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char version [ISODCL ( 7, 7)]; /* 711 */
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char unused1 [ISODCL ( 8, 8)];
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char system_id [ISODCL ( 9, 40)]; /* achars */
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char volume_id [ISODCL ( 41, 72)]; /* dchars */
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char unused2 [ISODCL ( 73, 80)];
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char volume_space_size [ISODCL ( 81, 88)]; /* 733 */
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char unused3 [ISODCL ( 89, 120)];
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char volume_set_size [ISODCL (121, 124)]; /* 723 */
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char volume_sequence_number [ISODCL (125, 128)]; /* 723 */
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char logical_block_size [ISODCL (129, 132)]; /* 723 */
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char path_table_size [ISODCL (133, 140)]; /* 733 */
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char type_l_path_table [ISODCL (141, 144)]; /* 731 */
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char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */
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char type_m_path_table [ISODCL (149, 152)]; /* 732 */
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char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */
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char root_directory_record [ISODCL (157, 190)]; /* 9.1 */
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char volume_set_id [ISODCL (191, 318)]; /* dchars */
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char publisher_id [ISODCL (319, 446)]; /* achars */
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char preparer_id [ISODCL (447, 574)]; /* achars */
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char application_id [ISODCL (575, 702)]; /* achars */
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char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */
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char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */
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char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */
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char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */
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char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */
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char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */
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char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */
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char file_structure_version [ISODCL (882, 882)]; /* 711 */
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char unused4 [ISODCL (883, 883)];
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char application_data [ISODCL (884, 1395)];
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char unused5 [ISODCL (1396, 2048)];
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};
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#define ISO_DEFAULT_BLOCK_SIZE 2048
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struct iso_directory_record {
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char length [ISODCL (1, 1)]; /* 711 */
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char ext_attr_length [ISODCL (2, 2)]; /* 711 */
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unsigned char extent [ISODCL (3, 10)]; /* 733 */
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unsigned char size [ISODCL (11, 18)]; /* 733 */
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char date [ISODCL (19, 25)]; /* 7 by 711 */
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char flags [ISODCL (26, 26)];
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char file_unit_size [ISODCL (27, 27)]; /* 711 */
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char interleave [ISODCL (28, 28)]; /* 711 */
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char volume_sequence_number [ISODCL (29, 32)]; /* 723 */
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char name_len [ISODCL (33, 33)]; /* 711 */
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char name [0];
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};
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/* can't take sizeof(iso_directory_record), because of possible alignment
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of the last entry (34 instead of 33) */
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#define ISO_DIRECTORY_RECORD_SIZE 33
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struct iso_extended_attributes {
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unsigned char owner [ISODCL (1, 4)]; /* 723 */
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unsigned char group [ISODCL (5, 8)]; /* 723 */
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unsigned char perm [ISODCL (9, 10)]; /* 9.5.3 */
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char ctime [ISODCL (11, 27)]; /* 8.4.26.1 */
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char mtime [ISODCL (28, 44)]; /* 8.4.26.1 */
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char xtime [ISODCL (45, 61)]; /* 8.4.26.1 */
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char ftime [ISODCL (62, 78)]; /* 8.4.26.1 */
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char recfmt [ISODCL (79, 79)]; /* 711 */
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char recattr [ISODCL (80, 80)]; /* 711 */
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unsigned char reclen [ISODCL (81, 84)]; /* 723 */
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char system_id [ISODCL (85, 116)]; /* achars */
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char system_use [ISODCL (117, 180)];
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char version [ISODCL (181, 181)]; /* 711 */
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char len_esc [ISODCL (182, 182)]; /* 711 */
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char reserved [ISODCL (183, 246)];
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unsigned char len_au [ISODCL (247, 250)]; /* 723 */
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};
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/* CD-ROM Format type */
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enum ISO_FTYPE { ISO_FTYPE_DEFAULT, ISO_FTYPE_9660, ISO_FTYPE_RRIP, ISO_FTYPE_ECMA };
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#ifndef ISOFSMNT_ROOT
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#define ISOFSMNT_ROOT 0
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#endif
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struct iso_mnt {
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int im_flags;
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struct mount *im_mountp;
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dev_t im_dev;
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struct vnode *im_devvp;
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int logical_block_size;
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int im_bshift;
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int im_bmask;
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int volume_space_size;
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char im_fsmnt[50];
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struct netexport im_export;
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char root[ISODCL (157, 190)];
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int root_extent;
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int root_size;
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enum ISO_FTYPE iso_ftype;
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int rr_skip;
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int rr_skip0;
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};
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#define VFSTOISOFS(mp) ((struct iso_mnt *)((mp)->mnt_data))
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#define iso_blkoff(imp, loc) ((loc) & (imp)->im_bmask)
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#define iso_lblkno(imp, loc) ((loc) >> (imp)->im_bshift)
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#define iso_blksize(imp, ip, lbn) ((imp)->logical_block_size)
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#define iso_lblktosize(imp, blk) ((blk) << (imp)->im_bshift)
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#define iso_lblktodaddr(imp, lbn) btodb(iso_lblktosize(imp, lbn))
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#define iso_dblkinc(imp, lbn) ((lbn) + iso_lblktodaddr(imp, 1))
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#define iso_dblkno(imp, loc) iso_lblktodaddr(imp, iso_lblkno(imp, loc))
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int cd9660_mount __P((struct mount *,
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char *, caddr_t, struct nameidata *, struct proc *));
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int cd9660_start __P((struct mount *, int, struct proc *));
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int cd9660_unmount __P((struct mount *, int, struct proc *));
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int cd9660_root __P((struct mount *, struct vnode **));
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int cd9660_quotactl __P((struct mount *, int, uid_t, caddr_t, struct proc *));
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int cd9660_statfs __P((struct mount *, struct statfs *, struct proc *));
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int cd9660_sync __P((struct mount *, int, struct ucred *, struct proc *));
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int cd9660_vget __P((struct mount *, ino_t, struct vnode **));
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int cd9660_fhtovp __P((struct mount *, struct fid *, struct mbuf *,
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struct vnode **, int *, struct ucred **));
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int cd9660_vptofh __P((struct vnode *, struct fid *));
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int cd9660_init __P(());
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struct iso_node;
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int iso_blkatoff __P((struct iso_node *ip, long offset, struct buf **bpp));
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int iso_iget __P((struct iso_node *xp, ino_t ino, int relocated,
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struct iso_node **ipp, struct iso_directory_record *isodir));
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int iso_iput __P((struct iso_node *ip));
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int iso_ilock __P((struct iso_node *ip));
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int iso_iunlock __P((struct iso_node *ip));
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int cd9660_mountroot __P((void));
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extern int (**cd9660_vnodeop_p)();
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extern inline int
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isonum_711(p)
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unsigned char *p;
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{
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return *p;
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}
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extern inline int
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isonum_712(p)
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char *p;
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{
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return *p;
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}
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extern inline int
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isonum_721(p)
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unsigned char *p;
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{
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return *p|((char)p[1] << 8);
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}
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extern inline int
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isonum_722(p)
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unsigned char *p;
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{
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return ((char)*p << 8)|p[1];
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}
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extern inline int
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isonum_723(p)
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unsigned char *p;
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{
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return isonum_721(p);
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}
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extern inline int
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isonum_731(p)
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unsigned char *p;
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{
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return *p|(p[1] << 8)|(p[2] << 16)|(p[3] << 24);
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}
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extern inline int
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isonum_732(p)
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unsigned char *p;
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{
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return (*p << 24)|(p[1] << 16)|(p[2] << 8)|p[3];
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}
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extern inline int
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isonum_733(p)
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unsigned char *p;
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{
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return isonum_731(p);
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}
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int isofncmp __P((unsigned char *, int, unsigned char *, int));
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void isofntrans __P((unsigned char *, int, unsigned char *, unsigned short *,
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int, int));
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/*
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* Associated files have a leading '='.
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*/
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#define ASSOCCHAR '='
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