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         struct metainfo *li = ( struct metainfo * )op->o_bd->be_private;
  38         struct metaconn *lc;
  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, do_retry = 1;
  49
  50         lc = meta_back_getconn( op, rs, &candidate, LDAP_BACK_SENDERR );
  51         if ( !lc || !meta_back_dobind( lc, op, LDAP_BACK_SENDERR ) ) {
  52                 return rs->sr_err;
  53         }
  54
  55         if ( !meta_back_is_valid( lc, candidate ) ) {
  56                 rs->sr_err = LDAP_OTHER;
  57                 send_ldap_result( op, rs );
  58                 return rs->sr_err;
  59         }
  60
  61         /*
  62          * Rewrite the modify dn, if needed
  63          */
  64         dc.rwmap = &li->mi_targets[ candidate ]->mt_rwmap;
  65         dc.conn = op->o_conn;
  66         dc.rs = rs;
  67         dc.ctx = "modifyDN";
  68
  69         if ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) {
  70                 rc = -1;
  71                 goto cleanup;
  72         }
  73
  74         for ( i = 0, ml = op->orm_modlist; ml; i++ ,ml = ml->sml_next )
  75                 ;
  76
  77         mods = ch_malloc( sizeof( LDAPMod )*i );
  78         if ( mods == NULL ) {
  79                 rs->sr_err = LDAP_NO_MEMORY;
  80                 rc = -1;
  81                 goto cleanup;
  82         }
  83         modv = ( LDAPMod ** )ch_malloc( ( i + 1 )*sizeof( LDAPMod * ) );
  84         if ( modv == NULL ) {
  85                 rs->sr_err = LDAP_NO_MEMORY;
  86                 rc = -1;
  87                 goto cleanup;
  88         }
  89
  90         dc.ctx = "modifyAttrDN";
  91         isupdate = be_shadow_update( op );
  92         for ( i = 0, ml = op->orm_modlist; ml; ml = ml->sml_next ) {
  93                 int     j, is_oc = 0;
  94
  95                 if ( !isupdate && ml->sml_desc->ad_type->sat_no_user_mod  ) {
  96                         continue;
  97                 }
  98
  99                 if ( ml->sml_desc == slap_schema.si_ad_objectClass
 100                                 || ml->sml_desc == slap_schema.si_ad_structuralObjectClass )
 101                 {
 102                         is_oc = 1;
 103                         mapped = ml->sml_desc->ad_cname;
 104
 105                 } else {
 106                         ldap_back_map( &li->mi_targets[ candidate ]->mt_rwmap.rwm_at,
 107                                         &ml->sml_desc->ad_cname, &mapped,
 108                                         BACKLDAP_MAP );
 109                         if ( BER_BVISNULL( &mapped ) || BER_BVISEMPTY( &mapped ) ) {
 110                                 continue;
 111                         }
 112                 }
 113
 114                 modv[ i ] = &mods[ i ];
 115                 mods[ i ].mod_op = ml->sml_op | LDAP_MOD_BVALUES;
 116                 mods[ i ].mod_type = mapped.bv_val;
 117
 118                 /*
 119                  * FIXME: dn-valued attrs should be rewritten
 120                  * to allow their use in ACLs at the back-ldap
 121                  * level.
 122                  */
 123                 if ( ml->sml_values != NULL ) {
 124                         if ( is_oc ) {
 125                                 for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ )
 126                                         ;
 127                                 mods[ i ].mod_bvalues =
 128                                         (struct berval **)ch_malloc( ( j + 1 ) *
 129                                         sizeof( struct berval * ) );
 130                                 for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); ) {
 131                                         struct ldapmapping      *mapping;
 132
 133                                         ldap_back_mapping( &li->mi_targets[ candidate ]->mt_rwmap.rwm_oc,
 134                                                         &ml->sml_values[ j ], &mapping, BACKLDAP_MAP );
 135
 136                                         if ( mapping == NULL ) {
 137                                                 if ( li->mi_targets[ candidate ]->mt_rwmap.rwm_oc.drop_missing ) {
 138                                                         continue;
 139                                                 }
 140                                                 mods[ i ].mod_bvalues[ j ] = &ml->sml_values[ j ];
 141
 142                                         } else {
 143                                                 mods[ i ].mod_bvalues[ j ] = &mapping->dst;
 144                                         }
 145                                         j++;
 146                                 }
 147                                 mods[ i ].mod_bvalues[ j ] = NULL;
 148
 149                         } else {
 150                                 if ( ml->sml_desc->ad_type->sat_syntax ==
 151                                                 slap_schema.si_syn_distinguishedName )
 152                                 {
 153                                         ( void )ldap_dnattr_rewrite( &dc, ml->sml_values );
 154                                         if ( ml->sml_values == NULL ) {
 155                                                 continue;
 156                                         }
 157                                 }
 158
 159                                 for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ )
 160                                         ;
 161                                 mods[ i ].mod_bvalues =
 162                                         (struct berval **)ch_malloc( ( j + 1 ) *
 163                                         sizeof( struct berval * ) );
 164                                 for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ ) {
 165                                         mods[ i ].mod_bvalues[ j ] = &ml->sml_values[ j ];
 166                                 }
 167                                 mods[ i ].mod_bvalues[ j ] = NULL;
 168                         }
 169
 170                 } else {
 171                         mods[ i ].mod_bvalues = NULL;
 172                 }
 173
 174                 i++;
 175         }
 176         modv[ i ] = 0;
 177
 178 retry:;
 179         rs->sr_err = ldap_modify_ext_s( lc->mc_conns[ candidate ].msc_ld, mdn.bv_val,
 180                         modv, op->o_ctrls, NULL );
 181         if ( rs->sr_err == LDAP_UNAVAILABLE && do_retry ) {
 182                 do_retry = 0;
 183                 if ( meta_back_retry( op, rs, lc, candidate, LDAP_BACK_SENDERR ) ) {
 184                         goto retry;
 185                 }
 186         }
 187
 188 cleanup:;
 189         if ( mdn.bv_val != op->o_req_dn.bv_val ) {
 190                 free( mdn.bv_val );
 191                 BER_BVZERO( &mdn );
 192         }
 193         if ( modv != NULL ) {
 194                 for ( i = 0; modv[ i ]; i++ ) {
 195                         free( modv[ i ]->mod_bvalues );
 196                 }
 197         }
 198         free( mods );
 199         free( modv );
 200
 201         if ( rc != -1 ) {
 202                 return meta_back_op_result( lc, op, rs, candidate );
 203         }
 204
 205         send_ldap_result( op, rs );
 206
 207         return rs->sr_err;
 208 }
 209