2 * $Id: cnid.h,v 1.9.6.6.2.2 2005-09-27 10:40:41 didg Exp $
4 * Copyright (c) 2003 the Netatalk Team
5 * Copyright (c) 2003 Rafal Lewczuk <rlewczuk@pronet.pl>
7 * This program is free software; you can redistribute and/or modify
8 * it under the terms of the GNU General Public License as published
9 * by the Free Software Foundation version 2 of the License or later
10 * version if explicitly stated by any of above copyright holders.
15 * This file contains all generic CNID related stuff
16 * declarations. Included:
17 * - CNID factory, which retrieves (eventually instantiates)
18 * CNID objects on demand
19 * - selection of CNID backends (default, detected by volume)
20 * - full set of CNID operations needed by server core.
23 #ifndef _ATALK_CNID__H
24 #define _ATALK_CNID__H 1
26 #include <atalk/adouble.h>
27 #include <atalk/list.h>
29 /* CNID object flags */
30 #define CNID_FLAG_PERSISTENT 0x01 /* This backend implements DID persistence */
31 #define CNID_FLAG_MANGLING 0x02 /* This backend has name mangling feature. */
32 #define CNID_FLAG_SETUID 0x04 /* Set db owner to parent folder owner. */
33 #define CNID_FLAG_BLOCK 0x08 /* block signals in update. */
34 #define CNID_FLAG_NODEV 0x10 /* don't use device number only inode */
36 #define CNID_INVALID 0
38 #define CNID_ERR_PARAM 0x80000001
39 #define CNID_ERR_PATH 0x80000002
40 #define CNID_ERR_DB 0x80000003
41 #define CNID_ERR_CLOSE 0x80000004 /* the db was not open */
42 #define CNID_ERR_MAX 0x80000005
45 * This is instance of CNID database object.
49 u_int32_t flags; /* Flags describing some CNID backend aspects. */
50 char *volpath; /* Volume path this particular CNID db refers to. */
51 void *_private; /* back-end speficic data */
53 cnid_t (*cnid_add)(struct _cnid_db *cdb, const struct stat *st, const cnid_t did,
54 char *name, const size_t, cnid_t hint);
55 int (*cnid_delete)(struct _cnid_db *cdb, cnid_t id);
56 cnid_t (*cnid_get)(struct _cnid_db *cdb, const cnid_t did, char *name, const size_t);
57 cnid_t (*cnid_lookup)(struct _cnid_db *cdb, const struct stat *st, const cnid_t did,
58 char *name, const size_t);
59 cnid_t (*cnid_nextid)(struct _cnid_db *cdb);
60 char *(*cnid_resolve)(struct _cnid_db *cdb, cnid_t *id, void *buffer, size_t len);
61 int (*cnid_update)(struct _cnid_db *cdb, const cnid_t id, const struct stat *st,
62 const cnid_t did, char *name, const size_t len);
63 void (*cnid_close)(struct _cnid_db *cdb);
64 int (*cnid_getstamp)(struct _cnid_db *cdb, void *buffer, const size_t len);
66 typedef struct _cnid_db cnid_db;
69 * CNID module - represents particular CNID implementation
73 struct list_head db_list; /* CNID modules are also stored on a bidirectional list. */
74 struct _cnid_db *(*cnid_open)(const char *dir, mode_t mask);
75 u_int32_t flags; /* Flags describing some CNID backend aspects. */
78 typedef struct _cnid_module cnid_module;
80 /* Inititalize the CNID backends */
83 /* Registers new CNID backend module */
84 void cnid_register(struct _cnid_module *module);
86 /* This function opens a CNID database for selected volume. */
87 struct _cnid_db *cnid_open(const char *volpath, mode_t mask, char *type, int flags);
89 cnid_t cnid_add(struct _cnid_db *cdb, const struct stat *st, const cnid_t did,
90 char *name, const size_t len, cnid_t hint);
92 int cnid_delete(struct _cnid_db *cdb, cnid_t id);
94 cnid_t cnid_get (struct _cnid_db *cdb, const cnid_t did, char *name,const size_t len);
96 int cnid_getstamp(struct _cnid_db *cdb, void *buffer, const size_t len);
98 cnid_t cnid_lookup(struct _cnid_db *cdb, const struct stat *st, const cnid_t did,
99 char *name, const size_t len);
101 char *cnid_resolve(struct _cnid_db *cdb, cnid_t *id, void *buffer, size_t len);
103 int cnid_update (struct _cnid_db *cdb, const cnid_t id, const struct stat *st,
104 const cnid_t did, char *name, const size_t len);
106 cnid_t cnid_rebuild_add(struct _cnid_db *cdb, const struct stat *st, const cnid_t did,
107 char *name, const size_t len, cnid_t hint);
110 /* This function closes a CNID database and frees all resources assigned to it. */
111 void cnid_close(struct _cnid_db *db);