2 * $Id: cnid_tdb_open.c,v 1.8 2010-03-31 09:47:32 franklahm Exp $
4 * Copyright (c) 1999. Adrian Sun (asun@zoology.washington.edu)
5 * All Rights Reserved. See COPYRIGHT.
12 #ifdef CNID_BACKEND_TDB
13 #include <sys/param.h>
16 #include <atalk/logger.h>
18 #define DBHOME ".AppleDB"
19 #define DBHOMELEN 9 /* strlen(DBHOME) +1 for / */
21 #define DBCNID "cnid2.tdb"
23 #define DBVERSION_KEY "\0\0\0\0Version"
24 #define DBVERSION_KEYLEN (sizeof(DBVERSION_KEY))
25 #define DBVERSION2 0x00000002U
26 #define DBVERSION DBVERSION2
28 static struct _cnid_db *cnid_tdb_new(const char *volpath)
31 struct _cnid_tdb_private *priv;
33 if ((cdb = (struct _cnid_db *) calloc(1, sizeof(struct _cnid_db))) == NULL)
36 if ((cdb->volpath = strdup(volpath)) == NULL) {
41 if ((cdb->_private = calloc(1, sizeof(struct _cnid_tdb_private))) == NULL) {
47 /* Set up private state */
48 priv = (struct _cnid_tdb_private *) (cdb->_private);
50 /* Set up standard fields */
51 cdb->flags = CNID_FLAG_PERSISTENT;
53 cdb->cnid_add = cnid_tdb_add;
54 cdb->cnid_delete = cnid_tdb_delete;
55 cdb->cnid_get = cnid_tdb_get;
56 cdb->cnid_lookup = cnid_tdb_lookup;
57 cdb->cnid_nextid = NULL; /*cnid_tdb_nextid;*/
58 cdb->cnid_resolve = cnid_tdb_resolve;
59 cdb->cnid_update = cnid_tdb_update;
60 cdb->cnid_close = cnid_tdb_close;
65 /* ---------------------------- */
66 struct _cnid_db *cnid_tdb_open(struct cnid_open_args *args)
70 struct _cnid_tdb_private *db;
72 char path[MAXPATHLEN + 1];
74 int hash_size = 131071;
78 /* note: dir and path are not used for in memory db */
82 if ((len = strlen(args->dir)) > (MAXPATHLEN - DBLEN - 1)) {
83 LOG(log_error, logtype_default, "tdb_open: Pathname too large: %s", args->dir);
87 if ((cdb = cnid_tdb_new(args->dir)) == NULL) {
88 LOG(log_error, logtype_default, "tdb_open: Unable to allocate memory for tdb");
92 strcpy(path, args->dir);
93 if (path[len - 1] != '/') {
98 strcpy(path + len, DBHOME);
99 if (!(args->flags & CNID_FLAG_MEMORY)) {
100 if ((stat(path, &st) < 0) && (ad_mkdir(path, 0777 & ~args->mask) < 0)) {
101 LOG(log_error, logtype_default, "tdb_open: DBHOME mkdir failed for %s", path);
107 tdb_flags = TDB_INTERNAL;
111 db = (struct _cnid_tdb_private *)cdb->_private;
113 path[len + DBHOMELEN] = '\0';
114 strcat(path, DBCNID);
116 db->tdb_cnid = tdb_open(path, hash_size, tdb_flags , O_RDWR | O_CREAT, 0666 & ~args->mask);
118 LOG(log_error, logtype_default, "tdb_open: unable to open tdb", path);
122 db->tdb_didname = db->tdb_cnid;
123 db->tdb_devino = db->tdb_cnid;
125 /* Check for version. This way we can update the database if we need
126 * to change the format in any way. */
127 memset(&key, 0, sizeof(key));
128 memset(&data, 0, sizeof(data));
129 key.dptr = DBVERSION_KEY;
130 key.dsize = DBVERSION_KEYLEN;
132 data = tdb_fetch(db->tdb_didname, key);
134 u_int32_t version = htonl(DBVERSION);
136 data.dptr = (char *)&version;
137 data.dsize = sizeof(version);
138 if (tdb_store(db->tdb_didname, key, data, TDB_REPLACE)) {
139 LOG(log_error, logtype_default, "tdb_open: Error putting new version");
157 struct _cnid_module cnid_tdb_module = {
161 CNID_FLAG_SETUID | CNID_FLAG_BLOCK