git.sur5r.net Git - openldap/blob - servers/slapd/schema.c

   1 /* schema.c - routines to manage schema definitions */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 1998-2004 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16
  17 #include "portable.h"
  18
  19 #include <stdio.h>
  20
  21 #include <ac/ctype.h>
  22 #include <ac/string.h>
  23 #include <ac/socket.h>
  24
  25 #include "slap.h"
  26 #include "ldap_pvt.h"
  27 #include "lutil.h"
  28
  29
  30 int
  31 schema_info( Entry **entry, const char **text )
  32 {
  33         AttributeDescription *ad_structuralObjectClass
  34                 = slap_schema.si_ad_structuralObjectClass;
  35         AttributeDescription *ad_objectClass
  36                 = slap_schema.si_ad_objectClass;
  37         AttributeDescription *ad_createTimestamp
  38                 = slap_schema.si_ad_createTimestamp;
  39         AttributeDescription *ad_modifyTimestamp
  40                 = slap_schema.si_ad_modifyTimestamp;
  41
  42         Entry           *e;
  43         struct berval   vals[5];
  44         struct berval   nvals[5];
  45
  46         e = (Entry *) SLAP_CALLOC( 1, sizeof(Entry) );
  47         if( e == NULL ) {
  48                 /* Out of memory, do something about it */
  49 #ifdef NEW_LOGGING
  50                 LDAP_LOG( OPERATION, ERR,
  51                         "schema_info: SLAP_CALLOC failed - out of memory.\n", 0, 0,0 );
  52 #else
  53                 Debug( LDAP_DEBUG_ANY,
  54                         "schema_info: SLAP_CALLOC failed - out of memory.\n", 0, 0, 0 );
  55 #endif
  56                 *text = "out of memory";
  57                 return LDAP_OTHER;
  58         }
  59
  60         e->e_attrs = NULL;
  61         /* backend-specific schema info should be created by the
  62          * backend itself
  63          */
  64         ber_dupbv( &e->e_name, &frontendDB->be_schemadn );
  65         ber_dupbv( &e->e_nname, &frontendDB->be_schemandn );
  66         e->e_private = NULL;
  67
  68         BER_BVSTR( &vals[0], "subentry" );
  69         if( attr_merge_one( e, ad_structuralObjectClass, vals, NULL ) ) {
  70                 /* Out of memory, do something about it */
  71                 entry_free( e );
  72                 *text = "out of memory";
  73                 return LDAP_OTHER;
  74         }
  75
  76         BER_BVSTR( &vals[0], "top" );
  77         BER_BVSTR( &vals[1], "subentry" );
  78         BER_BVSTR( &vals[2], "subschema" );
  79         BER_BVSTR( &vals[3], "extensibleObject" );
  80         BER_BVZERO( &vals[4] );
  81         if ( attr_merge( e, ad_objectClass, vals, NULL ) ) {
  82                 /* Out of memory, do something about it */
  83                 entry_free( e );
  84                 *text = "out of memory";
  85                 return LDAP_OTHER;
  86         }
  87
  88         {
  89                 int rc;
  90                 AttributeDescription *desc = NULL;
  91                 struct berval rdn = frontendDB->be_schemadn;
  92                 vals[0].bv_val = strchr( rdn.bv_val, '=' );
  93
  94                 if( vals[0].bv_val == NULL ) {
  95                         *text = "improperly configured subschema subentry";
  96                         return LDAP_OTHER;
  97                 }
  98
  99                 vals[0].bv_val++;
 100                 vals[0].bv_len = rdn.bv_len - (vals[0].bv_val - rdn.bv_val);
 101                 rdn.bv_len -= vals[0].bv_len + 1;
 102
 103                 rc = slap_bv2ad( &rdn, &desc, text );
 104
 105                 if( rc != LDAP_SUCCESS ) {
 106                         entry_free( e );
 107                         *text = "improperly configured subschema subentry";
 108                         return LDAP_OTHER;
 109                 }
 110
 111                 nvals[0].bv_val = strchr( frontendDB->be_schemandn.bv_val, '=' );
 112                 assert( nvals[0].bv_val );
 113                 nvals[0].bv_val++;
 114                 nvals[0].bv_len = frontendDB->be_schemandn.bv_len -
 115                         (nvals[0].bv_val - frontendDB->be_schemandn.bv_val);
 116
 117                 if ( attr_merge_one( e, desc, vals, nvals ) ) {
 118                         /* Out of memory, do something about it */
 119                         entry_free( e );
 120                         *text = "out of memory";
 121                         return LDAP_OTHER;
 122                 }
 123         }
 124
 125         {
 126                 struct          tm *ltm;
 127 #ifdef HAVE_GMTIME_R
 128                 struct          tm ltm_buf;
 129 #endif
 130                 char            timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 131
 132                 /*
 133                  * According to RFC 2251:
 134
 135    Servers SHOULD provide the attributes createTimestamp and
 136    modifyTimestamp in subschema entries, in order to allow clients to
 137    maintain their caches of schema information.
 138
 139                  * to be conservative, we declare schema created
 140                  * AND modified at server startup time ...
 141                  */
 142
 143 #ifdef HAVE_GMTIME_R
 144                 ltm = gmtime_r( &starttime, &ltm_buf );
 145 #else
 146                 ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 147                 ltm = gmtime( &starttime );
 148 #endif /* HAVE_GMTIME_R */
 149                 lutil_gentime( timebuf, sizeof(timebuf), ltm );
 150 #ifndef HAVE_GMTIME_R
 151                 ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 152 #endif
 153
 154                 vals[0].bv_val = timebuf;
 155                 vals[0].bv_len = strlen( timebuf );
 156
 157                 if( attr_merge_one( e, ad_createTimestamp, vals, NULL ) ) {
 158                         /* Out of memory, do something about it */
 159                         entry_free( e );
 160                         *text = "out of memory";
 161                         return LDAP_OTHER;
 162                 }
 163                 if( attr_merge_one( e, ad_modifyTimestamp, vals, NULL ) ) {
 164                         /* Out of memory, do something about it */
 165                         entry_free( e );
 166                         *text = "out of memory";
 167                         return LDAP_OTHER;
 168                 }
 169         }
 170
 171         if ( syn_schema_info( e )
 172                 || mr_schema_info( e )
 173                 || mru_schema_info( e )
 174                 || at_schema_info( e )
 175                 || oc_schema_info( e )
 176                 || cr_schema_info( e ) )
 177         {
 178                 /* Out of memory, do something about it */
 179                 entry_free( e );
 180                 *text = "out of memory";
 181                 return LDAP_OTHER;
 182         }
 183
 184         *entry = e;
 185         return LDAP_SUCCESS;
 186 }