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145 lines
No EOL
4.2 KiB
C
Vendored
145 lines
No EOL
4.2 KiB
C
Vendored
/* $OpenBSD: udf.h,v 1.21 2016/06/19 11:54:33 natano Exp $ */
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/*
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* Copyright (c) 2001, 2002 Scott Long <scottl@freebsd.org>
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* All rights reserved.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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* $FreeBSD: src/sys/fs/udf/udf.h,v 1.9 2004/10/29 10:40:58 phk Exp $
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*/
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/*
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* Ported to OpenBSD by Pedro Martelletto in February 2005.
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*/
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#define UDF_HASHTBLSIZE 100
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typedef uint32_t udfino_t;
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struct unode {
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LIST_ENTRY(unode) u_le;
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struct vnode *u_vnode;
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struct vnode *u_devvp;
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struct umount *u_ump;
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struct rrwlock u_lock;
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dev_t u_dev;
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udfino_t u_ino;
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union {
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long u_diroff;
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long u_vatlen;
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} un_u;
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struct extfile_entry *u_fentry;
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};
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#define u_diroff un_u.u_diroff
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#define u_vatlen un_u.u_vatlen
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struct umount {
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int um_flags;
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struct mount *um_mountp;
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struct vnode *um_devvp;
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dev_t um_dev;
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int um_bsize;
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int um_bshift;
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int um_bmask;
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uint32_t um_start;
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uint32_t um_realstart;
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uint32_t um_len;
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uint32_t um_reallen;
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uint32_t um_meta_start;
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uint32_t um_meta_len;
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struct unode *um_vat;
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struct long_ad um_root_icb;
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LIST_HEAD(udf_hash_lh, unode) *um_hashtbl;
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SIPHASH_KEY um_hashkey;
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u_long um_hashsz;
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struct mutex um_hashmtx;
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int um_psecs;
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int um_stbl_len;
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struct udf_sparing_table *um_stbl;
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};
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#define UDF_MNT_FIND_VAT 0x01 /* Indicates a VAT must be found */
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#define UDF_MNT_USES_VAT 0x02 /* Indicates a VAT must be used */
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#define UDF_MNT_USES_META 0x04 /* Indicates we are using a Metadata partition*/
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#define VTOU(vp) ((struct unode *)((vp)->v_data))
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#ifdef _KERNEL
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struct udf_dirstream {
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struct unode *node;
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struct umount *ump;
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struct buf *bp;
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uint8_t *data;
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uint8_t *buf;
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int fsize;
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int off;
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int this_off;
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int offset;
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int size;
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int error;
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int fid_fragment;
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};
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#define VFSTOUDFFS(mp) ((struct umount *)((mp)->mnt_data))
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/*
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* The block layer refers to things in terms of 512 byte blocks by default.
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* btodb() is expensive, so speed things up.
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* Can the block layer be forced to use a different block size?
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*/
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#define RDSECTOR(devvp, sector, size, bp) \
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bread(devvp, \
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((daddr_t)(sector) << ump->um_bshift) / DEV_BSIZE, size, bp)
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static __inline int
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udf_readlblks(struct umount *ump, int sector, int size, struct buf **bp)
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{
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return (RDSECTOR(ump->um_devvp, sector,
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(size + ump->um_bmask) & ~ump->um_bmask, bp));
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}
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/*
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* Produce a suitable file number from an ICB. The passed in ICB is expected
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* to be in little endian (meaning that it hasn't been swapped for big
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* endian machines yet).
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* If the fileno resolves to 0, we might be in big trouble.
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* Assumes the ICB is a long_ad. This struct is compatible with short_ad,
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* but not ext_ad.
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*/
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static __inline udfino_t
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udf_getid(struct long_ad *icb)
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{
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return (letoh32(icb->loc.lb_num));
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}
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int udf_allocv(struct mount *, struct vnode **, struct proc *);
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int udf_hashlookup(struct umount *, udfino_t, int, struct vnode **);
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int udf_hashins(struct unode *);
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int udf_hashrem(struct unode *);
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int udf_checktag(struct desc_tag *, uint16_t);
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typedef uint16_t unicode_t;
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#endif /* _KERNEL */ |