200 lines
6.0 KiB
C
200 lines
6.0 KiB
C
/* $NetBSD: hfs.h,v 1.7 2008/09/03 22:57:46 gmcgarry Exp $ */
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/*-
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* Copyright (c) 2005, 2007 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Yevgeny Binder and Dieter Baron.
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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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _FS_HFS_HFS_H_
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#define _FS_HFS_HFS_H_
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#include <sys/vnode.h>
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#include <sys/mount.h>
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#include <miscfs/genfs/genfs_node.h>
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/* XXX remove before release */
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/*#define HFS_DEBUG*/
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#ifdef HFS_DEBUG
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#if defined(_KERNEL) && !defined(_LKM)
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#include "opt_ddb.h"
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#endif /* defined(_KERNEL_) && !defined(_LKM) */
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#endif /* HFS_DEBUG */
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#include <fs/hfs/libhfs.h>
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/* XXX: make these mount options */
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#define HFS_DEFAULT_UID 0
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#define HFS_DEFAULT_GID 0
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#define HFS_DEFAULT_DIR_MODE 0755
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#define HFS_DEFAULT_FILE_MODE 0755
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struct hfs_args {
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char *fspec; /* block special device to mount */
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};
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struct hfsmount {
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struct mount *hm_mountp; /* filesystem vfs structure */
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dev_t hm_dev; /* device mounted */
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struct vnode *hm_devvp; /* block device mounted vnode */
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hfs_volume hm_vol; /* essential volume information */
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};
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struct hfsnode {
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struct genfs_node h_gnode;
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LIST_ENTRY(hfsnode) h_hash;/* hash chain */
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struct vnode *h_vnode; /* vnode associated with this hnode */
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struct hfsmount *h_hmp; /* mount point associated with this hnode */
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struct vnode *h_devvp; /* vnode for block I/O */
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dev_t h_dev; /* device associated with this hnode */
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union {
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hfs_file_record_t file;
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hfs_folder_record_t folder;
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struct {
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int16_t rec_type;
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uint16_t flags;
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uint32_t valence;
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hfs_cnid_t cnid;
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} u; /* convenience for accessing common record info */
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} h_rec; /* catalog record for this hnode */
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/*
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* We cache this vnode's parent CNID here upon vnode creation (i.e., during
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* hfs_vop_vget()) for quick access without needing to search the catalog.
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* Note, however, that this value must also be updated whenever this file
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* is moved.
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*/
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hfs_cnid_t h_parent;
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uint8_t h_fork;
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long dummy; /* FOR DEVELOPMENT ONLY */
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};
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typedef struct {
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struct vnode* devvp; /* vnode for device I/O */
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size_t devblksz; /* device block size (NOT HFS+ allocation block size)*/
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} hfs_libcb_data; /* custom data used in hfs_volume.cbdata */
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typedef struct {
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kauth_cred_t cred;
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struct lwp *l;
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struct vnode *devvp;
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} hfs_libcb_argsopen;
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typedef struct {
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struct lwp *l;
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} hfs_libcb_argsclose;
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typedef struct {
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kauth_cred_t cred;
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struct lwp *l;
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} hfs_libcb_argsread;
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#ifdef _KERNEL
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MALLOC_DECLARE(M_HFSMNT); /* defined in hfs_vfsops.c */
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/*
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* Convenience macros
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*/
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/* Convert mount ptr to hfsmount ptr. */
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#define VFSTOHFS(mp) ((struct hfsmount *)((mp)->mnt_data))
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/* Convert between vnode ptrs and hfsnode ptrs. */
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#define VTOH(vp) ((struct hfsnode *)(vp)->v_data)
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#define HTOV(hp) ((hp)->h_vnode)
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/* Get volume's allocation block size given a vnode ptr */
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#define HFS_BLOCKSIZE(vp) (VTOH(vp)->h_hmp->hm_vol.vh.block_size)
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/* Convert special device major/minor */
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#define HFS_CONVERT_RDEV(x) makedev((x)>>24, (x)&0xffffff)
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/*
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* Global variables
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*/
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extern const struct vnodeopv_desc hfs_vnodeop_opv_desc;
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extern const struct vnodeopv_desc hfs_specop_opv_desc;
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extern const struct vnodeopv_desc hfs_fifoop_opv_desc;
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extern int (**hfs_specop_p) (void *);
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extern int (**hfs_fifoop_p) (void *);
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/*
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* Function prototypes
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*/
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/* hfs_nhash.c */
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void hfs_nhashinit (void);
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void hfs_nhashdone (void);
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struct vnode *hfs_nhashget (dev_t, hfs_cnid_t, uint8_t, int);
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void hfs_nhashinsert (struct hfsnode *);
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void hfs_nhashremove (struct hfsnode *);
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/* hfs_subr.c */
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void hfs_vinit (struct mount *, int (**)(void *), int (**)(void *),
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struct vnode **);
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int hfs_pread(struct vnode*, void*, size_t, uint64_t, uint64_t, kauth_cred_t);
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char* hfs_unicode_to_ascii(const unichar_t*, uint8_t, char*);
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unichar_t* hfs_ascii_to_unicode(const char*, uint8_t, unichar_t*);
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void hfs_time_to_timespec(uint32_t, struct timespec *);
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enum vtype hfs_catalog_keyed_record_vtype(const hfs_catalog_keyed_record_t *);
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void hfs_libcb_error(const char*, const char*, int, va_list);
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void* hfs_libcb_malloc(size_t, hfs_callback_args*);
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void* hfs_libcb_realloc(void*, size_t, hfs_callback_args*);
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void hfs_libcb_free(void*, hfs_callback_args*);
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int hfs_libcb_opendev(hfs_volume*, const char*, hfs_callback_args*);
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void hfs_libcb_closedev(hfs_volume*, hfs_callback_args*);
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int hfs_libcb_read(hfs_volume*, void*, uint64_t, uint64_t,
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hfs_callback_args*);
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uint16_t be16tohp(void**);
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uint32_t be32tohp(void**);
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uint64_t be64tohp(void**);
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/* hfs_vfsops.c */
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VFS_PROTOS(hfs);
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int hfs_mountfs (struct vnode *, struct mount *, struct lwp *, const char *);
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int hfs_vget_internal(struct mount *, ino_t, uint8_t, struct vnode **);
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/* hfs_vnops.c */
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extern int (**hfs_vnodeop_p) (void *);
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#endif /* _KERNEL */
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#endif /* !_FS_HFS_HFS_H_ */
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