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NetBSD/sys/fs/udf/udf.h

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/* $NetBSD: udf.h,v 1.10 2007/10/10 20:42:25 ad Exp $ */
/*
* Copyright (c) 2006 Reinoud Zandijk
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the
* NetBSD Project. See http://www.NetBSD.org/ for
* information about NetBSD.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef _FS_UDF_UDF_H_
#define _FS_UDF_UDF_H_
#include <sys/queue.h>
#include <sys/uio.h>
#include <sys/mutex.h>
#include "udf_osta.h"
#include "ecma167-udf.h"
#include <sys/cdio.h>
#include <miscfs/genfs/genfs_node.h>
/* TODO make `udf_verbose' set by sysctl */
/* debug section */
extern int udf_verbose;
/* initial value of udf_verbose */
#define UDF_DEBUGGING 0x000
/* debug categories */
#define UDF_DEBUG_VOLUMES 0x001
#define UDF_DEBUG_LOCKING 0x002
#define UDF_DEBUG_NODE 0x004
#define UDF_DEBUG_LOOKUP 0x008
#define UDF_DEBUG_READDIR 0x010
#define UDF_DEBUG_FIDS 0x020
#define UDF_DEBUG_DESCRIPTOR 0x040
#define UDF_DEBUG_TRANSLATE 0x080
#define UDF_DEBUG_STRATEGY 0x100
#define UDF_DEBUG_READ 0x200
#define UDF_DEBUG_CALL 0x400
#define UDF_DEBUG_NOTIMPL UDF_DEBUG_CALL
#ifdef DEBUG
#ifdef SYSCTL_SETUP_PROTO
SYSCTL_SETUP_PROTO(sysctl_vfs_udf_setup);
#endif /* SYSCTL_SETUP_PROTO */
#endif
#ifdef DEBUG
#define DPRINTF(name, arg) { \
if (udf_verbose & UDF_DEBUG_##name) {\
printf arg;\
};\
}
#define DPRINTFIF(name, cond, arg) { \
if (udf_verbose & UDF_DEBUG_##name) { \
if (cond) printf arg;\
};\
}
#else
#define DPRINTF(name, arg) {}
#define DPRINTFIF(name, cond, arg) {}
#endif
/* constants to identify what kind of identifier we are dealing with */
#define UDF_REGID_DOMAIN 1
#define UDF_REGID_UDF 2
#define UDF_REGID_IMPLEMENTATION 3
#define UDF_REGID_APPLICATION 4
#define UDF_REGID_NAME 99
/* DON'T change these: they identify 13thmonkey's UDF implementation */
#define APP_NAME "*NetBSD UDF"
#define APP_VERSION_MAIN 1
#define APP_VERSION_SUB 0
#define IMPL_NAME "*13thMonkey.org"
/* Configuration values */
#define UDF_INODE_HASHBITS 10
#define UDF_INODE_HASHSIZE (1<<UDF_INODE_HASHBITS)
#define UDF_INODE_HASHMASK (UDF_INODE_HASHSIZE - 1)
/* structure space */
#define UDF_ANCHORS 4 /* 256, 512, N-256, N */
#define UDF_PARTITIONS 4 /* overkill */
#define UDF_PMAPS 4 /* overkill */
/* constants */
#define UDF_MAX_NAMELEN 255 /* as per SPEC */
#define UDF_TRANS_ZERO ((uint64_t) -1)
#define UDF_TRANS_UNMAPPED ((uint64_t) -2)
#define UDF_TRANS_INTERN ((uint64_t) -3)
#define UDF_MAX_SECTOR ((uint64_t) -10) /* high water mark */
/* malloc pools */
MALLOC_DECLARE(M_UDFMNT);
MALLOC_DECLARE(M_UDFVOLD);
MALLOC_DECLARE(M_UDFTEMP);
struct pool udf_node_pool;
struct udf_node;
/* pre cleanup */
struct udf_mount {
struct mount *vfs_mountp;
struct vnode *devvp;
struct mmc_discinfo discinfo;
struct udf_args mount_args;
/* read in structures */
struct anchor_vdp *anchors[UDF_ANCHORS]; /* anchors to VDS */
struct pri_vol_desc *primary_vol; /* identification */
struct logvol_desc *logical_vol; /* main mapping v->p */
struct unalloc_sp_desc *unallocated; /* free UDF space */
struct impvol_desc *implementation; /* likely reduntant */
struct logvol_int_desc *logvol_integrity; /* current integrity */
struct part_desc *partitions[UDF_PARTITIONS]; /* partitions */
/* derived; points *into* other structures */
struct udf_logvol_info *logvol_info; /* integrity descr. */
/* fileset and root directories */
struct fileset_desc *fileset_desc; /* normally one */
/* logical to physical translations */
int vtop[UDF_PMAPS+1]; /* vpartnr trans */
int vtop_tp[UDF_PMAPS+1]; /* type of trans */
/* VAT */
uint32_t first_possible_vat_location;
uint32_t last_possible_vat_location;
uint32_t vat_table_alloc_length;
uint32_t vat_entries;
uint32_t vat_offset; /* offset in table */
uint8_t *vat_table; /* read in data */
/* sparable */
uint32_t sparable_packet_len;
struct udf_sparing_table*sparing_table;
/* meta */
struct udf_node *metadata_file;
struct udf_node *metadatamirror_file;
struct udf_node *metadatabitmap_file;
/* disc allocation */
int data_alloc, meta_alloc; /* allocation scheme */
struct mmc_trackinfo datatrack;
struct mmc_trackinfo metadatatrack;
/* TODO free space and usage per partition */
/* ... [UDF_PARTITIONS]; */
/* hash table to lookup ino_t -> udf_node */
LIST_HEAD(, udf_node) udf_nodes[UDF_INODE_HASHSIZE];
/* allocation pool for udf_node's descriptors */
struct pool *desc_pool;
/* locks */
kmutex_t ihash_lock;
kmutex_t get_node_lock;
/* lists */
STAILQ_HEAD(, udf_node) dirty_nodes;
STAILQ_HEAD(udfmntpts, udf_mount) all_udf_mntpnts;
};
#define UDF_VTOP_RAWPART UDF_PMAPS /* [0..UDF_PMAPS> are normal */
/* virtual to physical mapping types */
#define UDF_VTOP_TYPE_RAW 0
#define UDF_VTOP_TYPE_UNKNOWN 0
#define UDF_VTOP_TYPE_PHYS 1
#define UDF_VTOP_TYPE_VIRT 2
#define UDF_VTOP_TYPE_SPARABLE 3
#define UDF_VTOP_TYPE_META 4
/* allocation strategies */
#define UDF_ALLOC_SPACEMAP 1 /* spacemaps */
#define UDF_ALLOC_SEQUENTIAL 2 /* linear on NWA */
#define UDF_ALLOC_VAT 3 /* VAT handling */
#define UDF_ALLOC_METABITMAP 4 /* metadata bitmap */
#define UDF_ALLOC_METASEQUENTIAL 5 /* in chunks seq., nodes not seq */
#define UDF_ALLOC_RELAXEDSEQUENTIAL 6 /* only nodes not seq. */
/* readdir cookies */
#define UDF_DIRCOOKIE_DOT 1
struct udf_node {
struct genfs_node i_gnode; /* has to be first */
struct vnode *vnode; /* vnode associated */
struct udf_mount *ump;
/* one of `fe' or `efe' can be set, not both (UDF file entry dscr.) */
struct file_entry *fe;
struct extfile_entry *efe;
/* location found and recording location & hints */
struct long_ad loc; /* FID/hash loc. */
struct long_ad next_loc; /* strat 4096 loc */
int needs_indirect; /* has missing indr. */
uint64_t last_diroffset; /* speeding up lookup*/
/* TODO support for allocation extents? */
/* device number from extended attributes = makedev(min,maj) */
dev_t rdev;
/* misc */
struct lockf *lockf; /* lock list */
/* possibly not needed */
long refcnt;
int dirty;
int hold;
struct udf_node *extattr;
struct udf_node *streamdir;
LIST_ENTRY(udf_node) hashchain; /* all udf nodes */
STAILQ_ENTRY(udf_node) dirty_nodes; /* dirty udf nodes */
};
#endif /* !_FS_UDF_UDF_H_ */
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