2 * Copyright (c) 2001, 2002 Scott Long <scottl@freebsd.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #define UDF_HASHTBLSIZE 100
32 struct vnode *i_vnode;
33 struct udf_mnt *udfmp;
36 struct file_entry *fentry;
41 struct mount *im_mountp;
42 struct g_consumer *im_cp;
45 struct vnode *im_devvp;
52 struct long_ad root_icb;
55 struct udf_sparing_table *s_table;
56 void *im_d2l; /* disk->local iconv handle */
58 void *im_l2d; /* local->disk iconv handle */
62 struct udf_dirstream {
63 struct udf_node *node;
64 struct udf_mnt *udfmp;
84 #define VFSTOUDFFS(mp) ((struct udf_mnt *)((mp)->mnt_data))
85 #define VTON(vp) ((struct udf_node *)((vp)->v_data))
88 * The block layer refers to things in terms of 512 byte blocks by default.
89 * btodb() is expensive, so speed things up.
90 * XXX Can the block layer be forced to use a different block size?
92 #define RDSECTOR(devvp, sector, size, bp) \
93 bread(devvp, sector << (udfmp->bshift - DEV_BSHIFT), size, NOCRED, bp)
95 MALLOC_DECLARE(M_UDFFENTRY);
98 udf_readlblks(struct udf_mnt *udfmp, int sector, int size, struct buf **bp)
100 return (RDSECTOR(udfmp->im_devvp, sector,
101 (size + udfmp->bmask) & ~udfmp->bmask, bp));
105 udf_readalblks(struct udf_mnt *udfmp, int lsector, int size, struct buf **bp)
107 daddr_t rablock, lblk;
110 lblk = (lsector + udfmp->part_start) << (udfmp->bshift - DEV_BSHIFT);
111 rablock = (lblk + 1) << udfmp->bshift;
114 return (breadn(udfmp->im_devvp, lblk,
115 (size + udfmp->bmask) & ~udfmp->bmask,
116 &rablock, &rasize, 1, NOCRED, bp));
120 * Produce a suitable file number from an ICB. The passed in ICB is expected
121 * to be in little endian (meaning that it hasn't been swapped for big
122 * endian machines yet).
123 * XXX If the fileno resolves to 0, we might be in big trouble.
124 * XXX Assumes the ICB is a long_ad. This struct is compatible with short_ad,
127 static __inline ino_t
128 udf_getid(struct long_ad *icb)
130 return (le32toh(icb->loc.lb_num));
133 int udf_allocv(struct mount *, struct vnode **, struct thread *);
134 int udf_checktag(struct desc_tag *, uint16_t);
135 int udf_vget(struct mount *, ino_t, int, struct vnode **);
137 extern uma_zone_t udf_zone_trans;
138 extern uma_zone_t udf_zone_node;
139 extern uma_zone_t udf_zone_ds;