git.sur5r.net Git - openldap/blob - servers/slapd/back-meta/modify.c

   1 /* $OpenLDAP$ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1999-2005 The OpenLDAP Foundation.
   5  * Portions Copyright 2001-2003 Pierangelo Masarati.
   6  * Portions Copyright 1999-2003 Howard Chu.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted only as authorized by the OpenLDAP
  11  * Public License.
  12  *
  13  * A copy of this license is available in the file LICENSE in the
  14  * top-level directory of the distribution or, alternatively, at
  15  * <http://www.OpenLDAP.org/license.html>.
  16  */
  17 /* ACKNOWLEDGEMENTS:
  18  * This work was initially developed by the Howard Chu for inclusion
  19  * in OpenLDAP Software and subsequently enhanced by Pierangelo
  20  * Masarati.
  21  */
  22
  23 #include "portable.h"
  24
  25 #include <stdio.h>
  26
  27 #include <ac/string.h>
  28 #include <ac/socket.h>
  29
  30 #include "slap.h"
  31 #include "../back-ldap/back-ldap.h"
  32 #include "back-meta.h"
  33
  34 int
  35 meta_back_modify( Operation *op, SlapReply *rs )
  36 {
  37         metainfo_t      *mi = ( metainfo_t * )op->o_bd->be_private;
  38         metaconn_t      *mc;
  39         int             rc = 0;
  40         LDAPMod         **modv = NULL;
  41         LDAPMod         *mods = NULL;
  42         Modifications   *ml;
  43         int             candidate = -1, i;
  44         int             isupdate;
  45         struct berval   mdn = BER_BVNULL;
  46         struct berval   mapped;
  47         dncookie        dc;
  48         int             msgid;
  49         int             do_retry = 1;
  50
  51         mc = meta_back_getconn( op, rs, &candidate, LDAP_BACK_SENDERR );
  52         if ( !mc || !meta_back_dobind( op, rs, mc, LDAP_BACK_SENDERR ) ) {
  53                 return rs->sr_err;
  54         }
  55
  56         assert( mc->mc_conns[ candidate ].msc_ld != NULL );
  57
  58         /*
  59          * Rewrite the modify dn, if needed
  60          */
  61         dc.target = &mi->mi_targets[ candidate ];
  62         dc.conn = op->o_conn;
  63         dc.rs = rs;
  64         dc.ctx = "modifyDN";
  65
  66         if ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) {
  67                 rc = -1;
  68                 goto cleanup;
  69         }
  70
  71         for ( i = 0, ml = op->orm_modlist; ml; i++ ,ml = ml->sml_next )
  72                 ;
  73
  74         mods = ch_malloc( sizeof( LDAPMod )*i );
  75         if ( mods == NULL ) {
  76                 rs->sr_err = LDAP_NO_MEMORY;
  77                 rc = -1;
  78                 goto cleanup;
  79         }
  80         modv = ( LDAPMod ** )ch_malloc( ( i + 1 )*sizeof( LDAPMod * ) );
  81         if ( modv == NULL ) {
  82                 rs->sr_err = LDAP_NO_MEMORY;
  83                 rc = -1;
  84                 goto cleanup;
  85         }
  86
  87         dc.ctx = "modifyAttrDN";
  88         isupdate = be_shadow_update( op );
  89         for ( i = 0, ml = op->orm_modlist; ml; ml = ml->sml_next ) {
  90                 int     j, is_oc = 0;
  91
  92                 if ( !isupdate && ml->sml_desc->ad_type->sat_no_user_mod  ) {
  93                         continue;
  94                 }
  95
  96                 if ( ml->sml_desc == slap_schema.si_ad_objectClass
  97                                 || ml->sml_desc == slap_schema.si_ad_structuralObjectClass )
  98                 {
  99                         is_oc = 1;
 100                         mapped = ml->sml_desc->ad_cname;
 101
 102                 } else {
 103                         ldap_back_map( &mi->mi_targets[ candidate ].mt_rwmap.rwm_at,
 104                                         &ml->sml_desc->ad_cname, &mapped,
 105                                         BACKLDAP_MAP );
 106                         if ( BER_BVISNULL( &mapped ) || BER_BVISEMPTY( &mapped ) ) {
 107                                 continue;
 108                         }
 109                 }
 110
 111                 modv[ i ] = &mods[ i ];
 112                 mods[ i ].mod_op = ml->sml_op | LDAP_MOD_BVALUES;
 113                 mods[ i ].mod_type = mapped.bv_val;
 114
 115                 /*
 116                  * FIXME: dn-valued attrs should be rewritten
 117                  * to allow their use in ACLs at the back-ldap
 118                  * level.
 119                  */
 120                 if ( ml->sml_values != NULL ) {
 121                         if ( is_oc ) {
 122                                 for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ )
 123                                         ;
 124                                 mods[ i ].mod_bvalues =
 125                                         (struct berval **)ch_malloc( ( j + 1 ) *
 126                                         sizeof( struct berval * ) );
 127                                 for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); ) {
 128                                         struct ldapmapping      *mapping;
 129
 130                                         ldap_back_mapping( &mi->mi_targets[ candidate ].mt_rwmap.rwm_oc,
 131                                                         &ml->sml_values[ j ], &mapping, BACKLDAP_MAP );
 132
 133                                         if ( mapping == NULL ) {
 134                                                 if ( mi->mi_targets[ candidate ].mt_rwmap.rwm_oc.drop_missing ) {
 135                                                         continue;
 136                                                 }
 137                                                 mods[ i ].mod_bvalues[ j ] = &ml->sml_values[ j ];
 138
 139                                         } else {
 140                                                 mods[ i ].mod_bvalues[ j ] = &mapping->dst;
 141                                         }
 142                                         j++;
 143                                 }
 144                                 mods[ i ].mod_bvalues[ j ] = NULL;
 145
 146                         } else {
 147                                 if ( ml->sml_desc->ad_type->sat_syntax ==
 148                                                 slap_schema.si_syn_distinguishedName )
 149                                 {
 150                                         ( void )ldap_dnattr_rewrite( &dc, ml->sml_values );
 151                                         if ( ml->sml_values == NULL ) {
 152                                                 continue;
 153                                         }
 154                                 }
 155
 156                                 for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ )
 157                                         ;
 158                                 mods[ i ].mod_bvalues =
 159                                         (struct berval **)ch_malloc( ( j + 1 ) *
 160                                         sizeof( struct berval * ) );
 161                                 for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ ) {
 162                                         mods[ i ].mod_bvalues[ j ] = &ml->sml_values[ j ];
 163                                 }
 164                                 mods[ i ].mod_bvalues[ j ] = NULL;
 165                         }
 166
 167                 } else {
 168                         mods[ i ].mod_bvalues = NULL;
 169                 }
 170
 171                 i++;
 172         }
 173         modv[ i ] = 0;
 174
 175 retry:;
 176         rs->sr_err = ldap_modify_ext( mc->mc_conns[ candidate ].msc_ld, mdn.bv_val,
 177                         modv, op->o_ctrls, NULL, &msgid );
 178         if ( rs->sr_err == LDAP_UNAVAILABLE && do_retry ) {
 179                 do_retry = 0;
 180                 if ( meta_back_retry( op, rs, mc, candidate, LDAP_BACK_SENDERR ) ) {
 181                         goto retry;
 182                 }
 183
 184         } else if ( rs->sr_err == LDAP_SUCCESS ) {
 185                 struct timeval  tv, *tvp = NULL;
 186                 LDAPMessage     *res = NULL;
 187
 188                 if ( mi->mi_targets[ candidate ].mt_timeout[ META_OP_MODIFY ] != 0 ) {
 189                         tv.tv_sec = mi->mi_targets[ candidate ].mt_timeout[ META_OP_MODIFY ];
 190                         tv.tv_usec = 0;
 191                         tvp = &tv;
 192                 }
 193
 194                 rs->sr_err = LDAP_OTHER;
 195                 rc = ldap_result( mc->mc_conns[ candidate ].msc_ld,
 196                         msgid, LDAP_MSG_ONE, tvp, &res );
 197                 switch ( rc ) {
 198                 case -1:
 199                         rc = -1;
 200                         break;
 201
 202                 case 0:
 203                         ldap_abandon_ext( mc->mc_conns[ candidate ].msc_ld,
 204                                 msgid, NULL, NULL );
 205                         rs->sr_err = op->o_protocol >= LDAP_VERSION3 ?
 206                                 LDAP_ADMINLIMIT_EXCEEDED : LDAP_OPERATIONS_ERROR;
 207                         rc = -1;
 208                         break;
 209
 210                 case LDAP_RES_MODIFY:
 211                         rc = ldap_parse_result( mc->mc_conns[ candidate ].msc_ld,
 212                                 res, &rs->sr_err, NULL, NULL, NULL, NULL, 1 );
 213                         if ( rc != LDAP_SUCCESS ) {
 214                                 rs->sr_err = rc;
 215                         }
 216                         rc = 0;
 217                         break;
 218
 219                 default:
 220                         rc = -1;
 221                         ldap_msgfree( res );
 222                         break;
 223                 }
 224         }
 225
 226 cleanup:;
 227         if ( mdn.bv_val != op->o_req_dn.bv_val ) {
 228                 free( mdn.bv_val );
 229                 BER_BVZERO( &mdn );
 230         }
 231         if ( modv != NULL ) {
 232                 for ( i = 0; modv[ i ]; i++ ) {
 233                         free( modv[ i ]->mod_bvalues );
 234                 }
 235         }
 236         free( mods );
 237         free( modv );
 238
 239         if ( rc != -1 ) {
 240                 rc = meta_back_op_result( mc, op, rs, candidate );
 241
 242         } else {
 243                 send_ldap_result( op, rs );
 244                 rc = 0;
 245         }
 246
 247         meta_back_release_conn( op, mc );
 248
 249         return rc;
 250 }
 251