/*
- * Copyright (c) 2002-2005 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2002-2007 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
#ifndef _HFS_CNODE_H_
#define _HFS_CNODE_H_
/* Aliases for common fields */
#define ff_size ff_data.cf_size
+#define ff_new_size ff_data.cf_new_size
#define ff_clumpsize ff_data.cf_clump
#define ff_bytesread ff_data.cf_bytesread
#define ff_blocks ff_data.cf_blocks
#define fcbBTCBPtr ff_sysfileinfo
typedef u_int8_t atomicflag_t;
-
+
+
+/*
+ * Hardlink Origin (for hardlinked directories).
+ */
+struct linkorigin {
+ TAILQ_ENTRY(linkorigin) lo_link; /* chain */
+ void * lo_thread; /* thread that performed the lookup */
+ cnid_t lo_cnid; /* hardlink's cnid */
+ cnid_t lo_parentcnid; /* hardlink's parent cnid */
+};
+typedef struct linkorigin linkorigin_t;
+
+#define MAX_CACHED_ORIGINS 10
+#define MAX_CACHED_FILE_ORIGINS 8
+
/*
* The cnode is used to represent each active (or recently active)
* file or directory in the HFS filesystem.
u_int32_t c_hflag; /* cnode's flags for maintaining hash - protected by global hash lock */
struct vnode *c_vp; /* vnode for data fork or dir */
struct vnode *c_rsrc_vp; /* vnode for resource fork */
- struct vnode *c_devvp; /* vnode for block I/O */
dev_t c_dev; /* cnode's device */
struct dquot *c_dquot[MAXQUOTAS]; /* cnode's quota info */
struct klist c_knotes; /* knotes attached to this vnode */
- u_long c_childhint; /* catalog hint for children */
+ u_int32_t c_childhint; /* catalog hint for children (small dirs only) */
+ u_int32_t c_dirthreadhint; /* catalog hint for directory's thread rec */
struct cat_desc c_desc; /* cnode's descriptor */
struct cat_attr c_attr; /* cnode's attributes */
- TAILQ_HEAD(hfs_hinthead, directoryhint) c_hintlist; /* directory hint list */
+ TAILQ_HEAD(hfs_originhead, linkorigin) c_originlist; /* hardlink origin cache */
+ TAILQ_HEAD(hfs_hinthead, directoryhint) c_hintlist; /* readdir directory hint list */
int16_t c_dirhinttag; /* directory hint tag */
union {
int16_t cu_dirhintcnt; /* directory hint count */
int16_t cu_syslockcount; /* system file use only */
} c_union;
+ u_int32_t c_dirchangecnt; /* changes each insert/delete (in-core only) */
struct filefork *c_datafork; /* cnode's data fork */
struct filefork *c_rsrcfork; /* cnode's rsrc fork */
atomicflag_t c_touch_acctime;
#define c_fileid c_attr.ca_fileid
#define c_mode c_attr.ca_mode
-#define c_nlink c_attr.ca_nlink
+#define c_linkcount c_attr.ca_linkcount
#define c_uid c_attr.ca_uid
#define c_gid c_attr.ca_gid
-#define c_rdev c_attr.ca_rdev
+#define c_rdev c_attr.ca_union1.cau_rdev
#define c_atime c_attr.ca_atime
#define c_mtime c_attr.ca_mtime
#define c_ctime c_attr.ca_ctime
#define c_btime c_attr.ca_btime
#define c_flags c_attr.ca_flags
#define c_finderinfo c_attr.ca_finderinfo
-#define c_blocks c_attr.ca_blocks
-#define c_attrblks c_attr.ca_attrblks
-#define c_entries c_attr.ca_entries
+#define c_blocks c_attr.ca_union2.cau_blocks
+#define c_entries c_attr.ca_union2.cau_entries
#define c_zftimeout c_childhint
#define c_dirhintcnt c_union.cu_dirhintcnt
#define C_MODIFIED 0x00010 /* CNode has been modified */
#define C_NOEXISTS 0x00020 /* CNode has been deleted, catalog entry is gone */
#define C_DELETED 0x00040 /* CNode has been marked to be deleted */
-#define C_HARDLINK 0x00080 /* CNode is a hard link */
+#define C_HARDLINK 0x00080 /* CNode is a hard link (file or dir) */
#define C_FORCEUPDATE 0x00100 /* force the catalog entry update */
#define C_HASXATTRS 0x00200 /* cnode has extended attributes */
+#define C_NEG_ENTRIES 0x00400 /* directory has negative name entries */
+#define C_WARNED_RSRC 0x00800 /* cnode lookup warning has been issued */
+#define C_NEED_DATA_SETSIZE 0x01000 /* Do a ubc_setsize(0) on c_rsrc_vp after the unlock */
+#define C_NEED_RSRC_SETSIZE 0x02000 /* Do a ubc_setsize(0) on c_vp after the unlock */
+#define C_DIR_MODIFICATION 0x04000 /* Directory is being modified, wait for lookups */
#define ZFTIMELIMIT (5 * 60)
+/*
+ * The following is the "invisible" bit from the fdFlags field
+ * in the FndrFileInfo.
+ */
+enum { kFinderInvisibleMask = 1 << 14 };
+
+
/*
* Convert between cnode pointers and vnode pointers
*/
VTOC((vp))->c_rsrcfork : \
VTOC((vp))->c_datafork)
+#define VCTOF(vp, cp) ((vp) == (cp)->c_rsrc_vp ? \
+ (cp)->c_rsrcfork : \
+ (cp)->c_datafork)
+
#define FTOV(fp) ((fp) == FTOC(fp)->c_rsrcfork ? \
FTOC(fp)->c_rsrc_vp : \
FTOC(fp)->c_vp)
};
+/* Get new default vnode */
+extern int hfs_getnewvnode(struct hfsmount *hfsmp, struct vnode *dvp, struct componentname *cnp,
+ struct cat_desc *descp, int flags, struct cat_attr *attrp,
+ struct cat_fork *forkp, struct vnode **vpp);
+
+
+#define GNV_WANTRSRC 0x01 /* Request the resource fork vnode. */
+#define GNV_SKIPLOCK 0x02 /* Skip taking the cnode lock (when getting resource fork). */
+#define GNV_CREATE 0x04 /* The vnode is for a newly created item. */
+
+
+/* Touch cnode times based on c_touch_xxx flags */
extern void hfs_touchtimes(struct hfsmount *, struct cnode *);
/*
* HFS cnode hash functions.
*/
extern void hfs_chashinit(void);
+extern void hfs_chashinit_finish(void);
extern void hfs_chashinsert(struct cnode *cp);
extern int hfs_chashremove(struct cnode *cp);
extern void hfs_chash_abort(struct cnode *cp);
extern struct cnode * hfs_chash_getcnode(dev_t dev, ino_t inum, struct vnode **vpp, int wantrsrc, int skiplock);
extern int hfs_chash_snoop(dev_t, ino_t, int (*)(const struct cat_desc *,
const struct cat_attr *, void *), void *);
+extern int hfs_valid_cnode(struct hfsmount *hfsmp, struct vnode *dvp, struct componentname *cnp, cnid_t cnid);
-/*
- * HFS directory hint functions.
- */
-extern directoryhint_t * hfs_getdirhint(struct cnode *, int);
-extern void hfs_reldirhint(struct cnode *, directoryhint_t *);
-extern void hfs_reldirhints(struct cnode *, int);
+extern int hfs_chash_set_childlinkbit(dev_t dev, cnid_t cnid);
/*
* HFS cnode lock functions.
* 4. system files (as needed)
* A. Catalog B-tree file
* B. Attributes B-tree file
- * C. Allocation Bitmap file (always exclusive, supports recursion)
- * D. Overflow Extents B-tree file (always exclusive, supports recursion)
+ * C. Startup file (if there is one)
+ * D. Allocation Bitmap file (always exclusive, supports recursion)
+ * E. Overflow Extents B-tree file (always exclusive, supports recursion)
* 5. hfs mount point (always last)
*
*/
extern void hfs_unlockfour(struct cnode *, struct cnode *, struct cnode *, struct cnode *);
extern void hfs_lock_truncate(struct cnode *, int);
-extern void hfs_unlock_truncate(struct cnode *);
+extern void hfs_unlock_truncate(struct cnode *, int);
#endif /* __APPLE_API_PRIVATE */
#endif /* KERNEL */
projects / apple / xnu.git / blobdiff