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