/usr/include/afs/dir.h is in libopenafs-dev 1.6.7-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 | /*
* Copyright 2000, International Business Machines Corporation and others.
* All Rights Reserved.
*
* This software has been released under the terms of the IBM Public
* License. For details, see the LICENSE file in the top-level source
* directory or online at http://www.openafs.org/dl/license10.html
*/
#if !defined(__AFS_DIR_H)
#define __AFS_DIR_H
#define AFS_PAGESIZE 2048 /* bytes per page */
#define NHASHENT 128 /* entries in the hash tbl */
#define MAXPAGES 128 /* max pages in a dir */
#define BIGMAXPAGES 1023 /* new big max pages */
#define EPP 64 /* dir entries per page */
#define LEPP 6 /* log above */
/* When this next field changs, it is crucial to modify MakeDir, since the
* latter is responsible for marking these entries as allocated. Also
* change the salvager. */
#define DHE 12 /* entries in a dir header above a pages header alone. */
#define FFIRST 1
#define FNEXT 2
struct MKFid { /* A file identifier. */
afs_int32 vnode; /* file's vnode slot */
afs_int32 vunique; /* the slot incarnation number */
};
struct PageHeader {
/* A page header entry. */
unsigned short pgcount; /* number of pages, or 0 if old-style */
unsigned short tag; /* 1234 in network byte order */
char freecount; /* unused, info in dirHeader structure */
char freebitmap[EPP / 8];
char padding[32 - (5 + EPP / 8)];
};
struct DirHeader {
/* A directory header object. */
struct PageHeader header;
char alloMap[MAXPAGES]; /* one byte per 2K page */
unsigned short hashTable[NHASHENT];
};
struct DirEntry {
/* A directory entry */
char flag;
char length; /* currently unused */
unsigned short next;
struct MKFid fid;
char name[16];
};
struct DirXEntry {
/* A directory extension entry. */
char name[32];
};
struct DirPage0 {
/* A page in a directory. */
struct DirHeader header;
struct DirEntry entry[1];
};
struct DirPage1 {
/* A page in a directory. */
struct PageHeader header;
struct DirEntry entry[1];
};
/*
* Note that this declaration is seen in both the kernel code and the
* user space code. One implementation is in afs/afs_buffer.c; the
* other is in dir/buffer.c.
*/
extern int DVOffset(void *ap);
/* This is private to buffer.c */
struct buffer;
/* Prototypes */
extern int NameBlobs(char *name);
extern int Create(void *dir, char *entry, void *vfid);
extern int Length(void *dir);
extern int Delete(void *dir, char *entry);
extern int FindBlobs(void *dir, int nblobs);
extern void AddPage(void *dir, int pageno);
extern void FreeBlobs(void *dir, int firstblob, int nblobs);
extern int MakeDir(void *dir, afs_int32 * me, afs_int32 * parent);
extern int Lookup(void *dir, char *entry, void *fid);
extern int LookupOffset(void *dir, char *entry, void *fid, long *offsetp);
extern int EnumerateDir(void *dir,
int (*hookproc) (void *dir, char *name,
afs_int32 vnode, afs_int32 unique),
void *hook);
extern int IsEmpty(void *dir);
extern struct DirEntry *GetBlob(void *dir, afs_int32 blobno);
extern int GetVerifiedBlob(void *dir, afs_int32 blobno, struct DirEntry **);
extern int DirHash(char *string);
extern int DStat(int *abuffers, int *acalls, int *aios);
extern void DRelease(void *loc, int flag);
extern int DVOffset(void *ap);
extern int DFlushVolume(afs_int32 vid);
extern int DFlushEntry(afs_int32 *fid);
extern int InverseLookup (void *dir, afs_uint32 vnode, afs_uint32 unique,
char *name, afs_uint32 length);
/* The kernel uses different versions of these, and prototypes them
in afs_prototypes.h */
#ifndef KERNEL
extern int DInit(int abuffers);
extern void *DRead(afs_int32 *fid, int page);
extern int DFlush(void);
extern void *DNew(afs_int32 *fid, int page);
extern void DZap(afs_int32 *fid);
/* salvage.c */
extern int DirOK(void *);
extern int DirSalvage(void *, void *, afs_int32, afs_int32,
afs_int32, afs_int32);
#endif
#ifdef KERNEL
extern int afs_dir_NameBlobs(char *name);
extern int afs_dir_Create(void *dir, char *entry, void *vfid);
extern int afs_dir_Length(void *dir);
extern int afs_dir_Delete(void *dir, char *entry);
extern int afs_dir_MakeDir(void *dir, afs_int32 * me, afs_int32 * parent);
extern int afs_dir_Lookup(void *dir, char *entry, void *fid);
extern int afs_dir_LookupOffset(void *dir, char *entry, void *fid,
long *offsetp);
extern int afs_dir_EnumerateDir(void *dir,
int (*hookproc) (void *dir, char *name,
afs_int32 vnode,
afs_int32 unique),
void *hook);
extern int afs_dir_IsEmpty(void *dir);
extern int afs_dir_ChangeFid(void *dir, char *entry, afs_uint32 *old_fid,
afs_uint32 *new_fid);
extern struct DirEntry *afs_dir_GetBlob(void *dir, afs_int32 blobno);
extern int afs_dir_GetVerifiedBlob(void *, afs_int32, struct DirEntry **);
#endif
#endif /* !defined(__AFS_DIR_H) */
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