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 1998-2003 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, &global_schemadn );
  65         ber_dupbv( &e->e_nname, &global_schemandn );
  66         e->e_private = NULL;
  67
  68         vals[0].bv_val = "subentry";
  69         vals[0].bv_len = sizeof("subentry")-1;
  70         if( attr_merge_one( e, ad_structuralObjectClass, vals, vals ) )
  71         {
  72                 /* Out of memory, do something about it */
  73                 entry_free( e );
  74                 *text = "out of memory";
  75                 return LDAP_OTHER;
  76         }
  77
  78         vals[0].bv_val = "top";
  79         vals[0].bv_len = sizeof("top")-1;
  80         vals[1].bv_val = "subentry";
  81         vals[1].bv_len = sizeof("subentry")-1;
  82         vals[2].bv_val = "subschema";
  83         vals[2].bv_len = sizeof("subschema")-1;
  84         vals[3].bv_val = "extensibleObject";
  85         vals[3].bv_len = sizeof("extensibleObject")-1;
  86         vals[4].bv_val = NULL;
  87         if( attr_merge( e, ad_objectClass, vals, vals ) )
  88         {
  89                 /* Out of memory, do something about it */
  90                 entry_free( e );
  91                 *text = "out of memory";
  92                 return LDAP_OTHER;
  93         }
  94
  95         {
  96                 int rc;
  97                 AttributeDescription *desc = NULL;
  98                 struct berval rdn = global_schemadn;
  99                 vals[0].bv_val = strchr( rdn.bv_val, '=' );
 100
 101                 if( vals[0].bv_val == NULL ) {
 102                         *text = "improperly configured subschema subentry";
 103                         return LDAP_OTHER;
 104                 }
 105
 106                 vals[0].bv_val++;
 107                 vals[0].bv_len = rdn.bv_len - (vals[0].bv_val - rdn.bv_val);
 108                 rdn.bv_len -= vals[0].bv_len + 1;
 109
 110                 rc = slap_bv2ad( &rdn, &desc, text );
 111
 112                 if( rc != LDAP_SUCCESS ) {
 113                         entry_free( e );
 114                         *text = "improperly configured subschema subentry";
 115                         return LDAP_OTHER;
 116                 }
 117
 118                 nvals[0].bv_val = strchr( global_schemandn.bv_val, '=' );
 119                 assert( nvals[0].bv_val );
 120                 nvals[0].bv_val++;
 121                 nvals[0].bv_len = global_schemandn.bv_len -
 122                         (nvals[0].bv_val - global_schemandn.bv_val);
 123
 124                 if( attr_merge_one( e, desc, vals, nvals ) )
 125                 {
 126                         /* Out of memory, do something about it */
 127                         entry_free( e );
 128                         *text = "out of memory";
 129                         return LDAP_OTHER;
 130                 }
 131         }
 132
 133         {
 134                 struct          tm *ltm;
 135 #ifdef HAVE_GMTIME_R
 136                 struct          tm ltm_buf;
 137 #endif
 138                 char            timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 139
 140                 /*
 141                  * According to RFC 2251:
 142
 143    Servers SHOULD provide the attributes createTimestamp and
 144    modifyTimestamp in subschema entries, in order to allow clients to
 145    maintain their caches of schema information.
 146
 147                  * to be conservative, we declare schema created
 148                  * AND modified at server startup time ...
 149                  */
 150
 151 #ifdef HAVE_GMTIME_R
 152                 ltm = gmtime_r( &starttime, &ltm_buf );
 153 #else
 154                 ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 155                 ltm = gmtime( &starttime );
 156 #endif /* HAVE_GMTIME_R */
 157                 lutil_gentime( timebuf, sizeof(timebuf), ltm );
 158 #ifndef HAVE_GMTIME_R
 159                 ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 160 #endif
 161
 162                 vals[0].bv_val = timebuf;
 163                 vals[0].bv_len = strlen( timebuf );
 164
 165                 if( attr_merge_one( e, ad_createTimestamp, vals, vals ) )
 166                 {
 167                         /* Out of memory, do something about it */
 168                         entry_free( e );
 169                         *text = "out of memory";
 170                         return LDAP_OTHER;
 171                 }
 172                 if( attr_merge_one( e, ad_modifyTimestamp, vals, vals ) )
 173                 {
 174                         /* Out of memory, do something about it */
 175                         entry_free( e );
 176                         *text = "out of memory";
 177                         return LDAP_OTHER;
 178                 }
 179         }
 180
 181         if ( syn_schema_info( e )
 182                 || mr_schema_info( e )
 183                 || mru_schema_info( e )
 184                 || at_schema_info( e )
 185                 || oc_schema_info( e )
 186                 || cr_schema_info( e ) )
 187         {
 188                 /* Out of memory, do something about it */
 189                 entry_free( e );
 190                 *text = "out of memory";
 191                 return LDAP_OTHER;
 192         }
 193
 194         *entry = e;
 195         return LDAP_SUCCESS;
 196 }