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openldap  2.4.31
Functions
modify.c File Reference
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include <ac/socket.h>
#include "slap.h"
#include "../back-ldap/back-ldap.h"
#include "back-meta.h"

Go to the source code of this file.

Functions

int meta_back_modify (Operation *op, SlapReply *rs)

Function Documentation

int meta_back_modify ( Operation op,
SlapReply rs 
)

Definition at line 35 of file modify.c.

{
       metainfo_t    *mi = ( metainfo_t * )op->o_bd->be_private;
       metatarget_t  *mt;
       metaconn_t    *mc;
       int           rc = 0;
       LDAPMod              **modv = NULL;
       LDAPMod              *mods = NULL;
       Modifications *ml;
       int           candidate = -1, i;
       int           isupdate;
       struct berval mdn = BER_BVNULL;
       struct berval mapped;
       dncookie      dc;
       int           msgid;
       ldap_back_send_t     retrying = LDAP_BACK_RETRYING;
       LDAPControl   **ctrls = NULL;

       mc = meta_back_getconn( op, rs, &candidate, LDAP_BACK_SENDERR );
       if ( !mc || !meta_back_dobind( op, rs, mc, LDAP_BACK_SENDERR ) ) {
              return rs->sr_err;
       }

       assert( mc->mc_conns[ candidate ].msc_ld != NULL );

       /*
        * Rewrite the modify dn, if needed
        */
       mt = mi->mi_targets[ candidate ];
       dc.target = mt;
       dc.conn = op->o_conn;
       dc.rs = rs;
       dc.ctx = "modifyDN";

       if ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) {
              send_ldap_result( op, rs );
              goto cleanup;
       }

       for ( i = 0, ml = op->orm_modlist; ml; i++ ,ml = ml->sml_next )
              ;

       mods = ch_malloc( sizeof( LDAPMod )*i );
       if ( mods == NULL ) {
              rs->sr_err = LDAP_OTHER;
              send_ldap_result( op, rs );
              goto cleanup;
       }
       modv = ( LDAPMod ** )ch_malloc( ( i + 1 )*sizeof( LDAPMod * ) );
       if ( modv == NULL ) {
              rs->sr_err = LDAP_OTHER;
              send_ldap_result( op, rs );
              goto cleanup;
       }

       dc.ctx = "modifyAttrDN";
       isupdate = be_shadow_update( op );
       for ( i = 0, ml = op->orm_modlist; ml; ml = ml->sml_next ) {
              int    j, is_oc = 0;

              if ( !isupdate && !get_relax( op ) && ml->sml_desc->ad_type->sat_no_user_mod  )
              {
                     continue;
              }

              if ( ml->sml_desc == slap_schema.si_ad_objectClass 
                            || ml->sml_desc == slap_schema.si_ad_structuralObjectClass )
              {
                     is_oc = 1;
                     mapped = ml->sml_desc->ad_cname;

              } else {
                     ldap_back_map( &mt->mt_rwmap.rwm_at,
                                   &ml->sml_desc->ad_cname, &mapped,
                                   BACKLDAP_MAP );
                     if ( BER_BVISNULL( &mapped ) || BER_BVISEMPTY( &mapped ) ) {
                            continue;
                     }
              }

              modv[ i ] = &mods[ i ];
              mods[ i ].mod_op = ml->sml_op | LDAP_MOD_BVALUES;
              mods[ i ].mod_type = mapped.bv_val;

              /*
               * FIXME: dn-valued attrs should be rewritten
               * to allow their use in ACLs at the back-ldap
               * level.
               */
              if ( ml->sml_values != NULL ) {
                     if ( is_oc ) {
                            for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ )
                                   ;
                            mods[ i ].mod_bvalues =
                                   (struct berval **)ch_malloc( ( j + 1 ) *
                                   sizeof( struct berval * ) );
                            for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); ) {
                                   struct ldapmapping   *mapping;

                                   ldap_back_mapping( &mt->mt_rwmap.rwm_oc,
                                                 &ml->sml_values[ j ], &mapping, BACKLDAP_MAP );

                                   if ( mapping == NULL ) {
                                          if ( mt->mt_rwmap.rwm_oc.drop_missing ) {
                                                 continue;
                                          }
                                          mods[ i ].mod_bvalues[ j ] = &ml->sml_values[ j ];

                                   } else {
                                          mods[ i ].mod_bvalues[ j ] = &mapping->dst;
                                   }
                                   j++;
                            }
                            mods[ i ].mod_bvalues[ j ] = NULL;

                     } else {
                            if ( ml->sml_desc->ad_type->sat_syntax ==
                                          slap_schema.si_syn_distinguishedName )
                            {
                                   ( void )ldap_dnattr_rewrite( &dc, ml->sml_values );
                                   if ( ml->sml_values == NULL ) {
                                          continue;
                                   }
                            }

                            for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ )
                                   ;
                            mods[ i ].mod_bvalues =
                                   (struct berval **)ch_malloc( ( j + 1 ) *
                                   sizeof( struct berval * ) );
                            for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ ) {
                                   mods[ i ].mod_bvalues[ j ] = &ml->sml_values[ j ];
                            }
                            mods[ i ].mod_bvalues[ j ] = NULL;
                     }

              } else {
                     mods[ i ].mod_bvalues = NULL;
              }

              i++;
       }
       modv[ i ] = 0;

retry:;
       ctrls = op->o_ctrls;
       rc = meta_back_controls_add( op, rs, mc, candidate, &ctrls );
       if ( rc != LDAP_SUCCESS ) {
              send_ldap_result( op, rs );
              goto cleanup;
       }

       rs->sr_err = ldap_modify_ext( mc->mc_conns[ candidate ].msc_ld, mdn.bv_val,
                     modv, ctrls, NULL, &msgid );
       rs->sr_err = meta_back_op_result( mc, op, rs, candidate, msgid,
              mt->mt_timeout[ SLAP_OP_MODIFY ], ( LDAP_BACK_SENDRESULT | retrying ) );
       if ( rs->sr_err == LDAP_UNAVAILABLE && retrying ) {
              retrying &= ~LDAP_BACK_RETRYING;
              if ( meta_back_retry( op, rs, &mc, candidate, LDAP_BACK_SENDERR ) ) {
                     /* if the identity changed, there might be need to re-authz */
                     (void)mi->mi_ldap_extra->controls_free( op, rs, &ctrls );
                     goto retry;
              }
       }

cleanup:;
       (void)mi->mi_ldap_extra->controls_free( op, rs, &ctrls );

       if ( mdn.bv_val != op->o_req_dn.bv_val ) {
              free( mdn.bv_val );
              BER_BVZERO( &mdn );
       }
       if ( modv != NULL ) {
              for ( i = 0; modv[ i ]; i++ ) {
                     free( modv[ i ]->mod_bvalues );
              }
       }
       free( mods );
       free( modv );

       if ( mc ) {
              meta_back_release_conn( mi, mc );
       }

       return rs->sr_err;
}

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