external/bsd/openldap/dist/servers/slapd/back-meta/modify.c

   1 /* $OpenLDAP: pkg/ldap/servers/slapd/back-meta/modify.c,v 1.52.2.7 2008/02/12 00:25:47 quanah Exp $ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1999-2008 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         metatarget_t    *mt;
  39         metaconn_t      *mc;
  40         int             rc = 0;
  41         LDAPMod         **modv = NULL;
  42         LDAPMod         *mods = NULL;
  43         Modifications   *ml;
  44         int             candidate = -1, i;
  45         int             isupdate;
  46         struct berval   mdn = BER_BVNULL;
  47         struct berval   mapped;
  48         dncookie        dc;
  49         int             msgid;
  50         int             do_retry = 1;
  51         LDAPControl     **ctrls = NULL;
  52
  53         mc = meta_back_getconn( op, rs, &candidate, LDAP_BACK_SENDERR );
  54         if ( !mc || !meta_back_dobind( op, rs, mc, LDAP_BACK_SENDERR ) ) {
  55                 return rs->sr_err;
  56         }
  57
  58         assert( mc->mc_conns[ candidate ].msc_ld != NULL );
  59
  60         /*
  61          * Rewrite the modify dn, if needed
  62          */
  63         mt = mi->mi_targets[ candidate ];
  64         dc.target = mt;
  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                 send_ldap_result( op, rs );
  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_OTHER;
  80                 send_ldap_result( op, rs );
  81                 goto cleanup;
  82         }
  83         modv = ( LDAPMod ** )ch_malloc( ( i + 1 )*sizeof( LDAPMod * ) );
  84         if ( modv == NULL ) {
  85                 rs->sr_err = LDAP_OTHER;
  86                 send_ldap_result( op, rs );
  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 && !get_relax( op ) && ml->sml_desc->ad_type->sat_no_user_mod  )
  96                 {
  97                         continue;
  98                 }
  99
 100                 if ( ml->sml_desc == slap_schema.si_ad_objectClass
 101                                 || ml->sml_desc == slap_schema.si_ad_structuralObjectClass )
 102                 {
 103                         is_oc = 1;
 104                         mapped = ml->sml_desc->ad_cname;
 105
 106                 } else {
 107                         ldap_back_map( &mt->mt_rwmap.rwm_at,
 108                                         &ml->sml_desc->ad_cname, &mapped,
 109                                         BACKLDAP_MAP );
 110                         if ( BER_BVISNULL( &mapped ) || BER_BVISEMPTY( &mapped ) ) {
 111                                 continue;
 112                         }
 113                 }
 114
 115                 modv[ i ] = &mods[ i ];
 116                 mods[ i ].mod_op = ml->sml_op | LDAP_MOD_BVALUES;
 117                 mods[ i ].mod_type = mapped.bv_val;
 118
 119                 /*
 120                  * FIXME: dn-valued attrs should be rewritten
 121                  * to allow their use in ACLs at the back-ldap
 122                  * level.
 123                  */
 124                 if ( ml->sml_values != NULL ) {
 125                         if ( is_oc ) {
 126                                 for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ )
 127                                         ;
 128                                 mods[ i ].mod_bvalues =
 129                                         (struct berval **)ch_malloc( ( j + 1 ) *
 130                                         sizeof( struct berval * ) );
 131                                 for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); ) {
 132                                         struct ldapmapping      *mapping;
 133
 134                                         ldap_back_mapping( &mt->mt_rwmap.rwm_oc,
 135                                                         &ml->sml_values[ j ], &mapping, BACKLDAP_MAP );
 136
 137                                         if ( mapping == NULL ) {
 138                                                 if ( mt->mt_rwmap.rwm_oc.drop_missing ) {
 139                                                         continue;
 140                                                 }
 141                                                 mods[ i ].mod_bvalues[ j ] = &ml->sml_values[ j ];
 142
 143                                         } else {
 144                                                 mods[ i ].mod_bvalues[ j ] = &mapping->dst;
 145                                         }
 146                                         j++;
 147                                 }
 148                                 mods[ i ].mod_bvalues[ j ] = NULL;
 149
 150                         } else {
 151                                 if ( ml->sml_desc->ad_type->sat_syntax ==
 152                                                 slap_schema.si_syn_distinguishedName )
 153                                 {
 154                                         ( void )ldap_dnattr_rewrite( &dc, ml->sml_values );
 155                                         if ( ml->sml_values == NULL ) {
 156                                                 continue;
 157                                         }
 158                                 }
 159
 160                                 for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ )
 161                                         ;
 162                                 mods[ i ].mod_bvalues =
 163                                         (struct berval **)ch_malloc( ( j + 1 ) *
 164                                         sizeof( struct berval * ) );
 165                                 for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ ) {
 166                                         mods[ i ].mod_bvalues[ j ] = &ml->sml_values[ j ];
 167                                 }
 168                                 mods[ i ].mod_bvalues[ j ] = NULL;
 169                         }
 170
 171                 } else {
 172                         mods[ i ].mod_bvalues = NULL;
 173                 }
 174
 175                 i++;
 176         }
 177         modv[ i ] = 0;
 178
 179 retry:;
 180         ctrls = op->o_ctrls;
 181         rc = meta_back_controls_add( op, rs, mc, candidate, &ctrls );
 182         if ( rc != LDAP_SUCCESS ) {
 183                 send_ldap_result( op, rs );
 184                 goto cleanup;
 185         }
 186
 187         rs->sr_err = ldap_modify_ext( mc->mc_conns[ candidate ].msc_ld, mdn.bv_val,
 188                         modv, ctrls, NULL, &msgid );
 189         rs->sr_err = meta_back_op_result( mc, op, rs, candidate, msgid,
 190                 mt->mt_timeout[ SLAP_OP_MODIFY ], LDAP_BACK_SENDRESULT );
 191         if ( rs->sr_err == LDAP_UNAVAILABLE && do_retry ) {
 192                 do_retry = 0;
 193                 if ( meta_back_retry( op, rs, &mc, candidate, LDAP_BACK_SENDERR ) ) {
 194                         /* if the identity changed, there might be need to re-authz */
 195                         (void)mi->mi_ldap_extra->controls_free( op, rs, &ctrls );
 196                         goto retry;
 197                 }
 198         }
 199
 200 cleanup:;
 201         (void)mi->mi_ldap_extra->controls_free( op, rs, &ctrls );
 202
 203         if ( mdn.bv_val != op->o_req_dn.bv_val ) {
 204                 free( mdn.bv_val );
 205                 BER_BVZERO( &mdn );
 206         }
 207         if ( modv != NULL ) {
 208                 for ( i = 0; modv[ i ]; i++ ) {
 209                         free( modv[ i ]->mod_bvalues );
 210                 }
 211         }
 212         free( mods );
 213         free( modv );
 214
 215         if ( mc ) {
 216                 meta_back_release_conn( mi, mc );
 217         }
 218
 219         return rs->sr_err;
 220 }
 221