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openldap  2.4.31
Classes | Typedefs | Functions
delete.c File Reference
#include "portable.h"
#include <stdio.h>
#include <sys/types.h>
#include "ac/string.h"
#include "slap.h"
#include "proto-sql.h"

Go to the source code of this file.

Classes

struct  backsql_delete_attr_t
struct  backsql_tree_delete_t

Typedefs

typedef struct
backsql_delete_attr_t 
backsql_delete_attr_t
typedef struct
backsql_tree_delete_t 
backsql_tree_delete_t

Functions

static int backsql_delete_attr_f (void *v_at, void *v_bda)
static int backsql_delete_all_attrs (Operation *op, SlapReply *rs, SQLHDBC dbh, backsql_entryID *eid)
static int backsql_delete_int (Operation *op, SlapReply *rs, SQLHDBC dbh, SQLHSTMT *sthp, backsql_entryID *eid, Entry **ep)
static int backsql_tree_delete_search_cb (Operation *op, SlapReply *rs)
static int backsql_tree_delete (Operation *op, SlapReply *rs, SQLHDBC dbh, SQLHSTMT *sthp)
int backsql_delete (Operation *op, SlapReply *rs)

Class Documentation

struct backsql_delete_attr_t

Definition at line 32 of file delete.c.

Collaboration diagram for backsql_delete_attr_t:
Class Members
SQLHDBC dbh
backsql_entryID * e_id
Operation * op
SlapReply * rs
struct backsql_tree_delete_t

Definition at line 286 of file delete.c.

Collaboration diagram for backsql_tree_delete_t:
Class Members
backsql_entryID * btd_eid
Operation * btd_op
int btd_rc

Typedef Documentation


Function Documentation

int backsql_delete ( Operation op,
SlapReply rs 
)

Definition at line 403 of file delete.c.

{
       SQLHDBC              dbh = SQL_NULL_HDBC;
       SQLHSTMT             sth = SQL_NULL_HSTMT;
       backsql_oc_map_rec   *oc = NULL;
       backsql_srch_info    bsi = { 0 };
       backsql_entryID             e_id = { 0 };
       Entry                d = { 0 }, p = { 0 }, *e = NULL;
       struct berval        pdn = BER_BVNULL;
       int                  manageDSAit = get_manageDSAit( op );

       Debug( LDAP_DEBUG_TRACE, "==>backsql_delete(): deleting entry \"%s\"\n",
                     op->o_req_ndn.bv_val, 0, 0 );

       rs->sr_err = backsql_get_db_conn( op, &dbh );
       if ( rs->sr_err != LDAP_SUCCESS ) {
              Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
                     "could not get connection handle - exiting\n", 
                     0, 0, 0 );
              rs->sr_text = ( rs->sr_err == LDAP_OTHER )
                     ? "SQL-backend error" : NULL;
              e = NULL;
              goto done;
       }

       /*
        * Get the entry
        */
       bsi.bsi_e = &d;
       rs->sr_err = backsql_init_search( &bsi, &op->o_req_ndn,
                     LDAP_SCOPE_BASE, 
                     (time_t)(-1), NULL, dbh, op, rs, slap_anlist_no_attrs,
                     ( BACKSQL_ISF_MATCHED | BACKSQL_ISF_GET_ENTRY | BACKSQL_ISF_GET_OC ) );
       switch ( rs->sr_err ) {
       case LDAP_SUCCESS:
              break;

       case LDAP_REFERRAL:
              if ( manageDSAit && !BER_BVISNULL( &bsi.bsi_e->e_nname ) &&
                            dn_match( &op->o_req_ndn, &bsi.bsi_e->e_nname ) )
              {
                     rs->sr_err = LDAP_SUCCESS;
                     rs->sr_text = NULL;
                     rs->sr_matched = NULL;
                     if ( rs->sr_ref ) {
                            ber_bvarray_free( rs->sr_ref );
                            rs->sr_ref = NULL;
                     }
                     break;
              }
              e = &d;
              /* fallthru */

       default:
              Debug( LDAP_DEBUG_TRACE, "backsql_delete(): "
                     "could not retrieve deleteDN ID - no such entry\n", 
                     0, 0, 0 );
              if ( !BER_BVISNULL( &d.e_nname ) ) {
                     /* FIXME: should always be true! */
                     e = &d;

              } else {
                     e = NULL;
              }
              goto done;
       }

       if ( get_assert( op ) &&
                     ( test_filter( op, &d, get_assertion( op ) )
                       != LDAP_COMPARE_TRUE ) )
       {
              rs->sr_err = LDAP_ASSERTION_FAILED;
              e = &d;
              goto done;
       }

       if ( !access_allowed( op, &d, slap_schema.si_ad_entry, 
                     NULL, ACL_WDEL, NULL ) )
       {
              Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
                     "no write access to entry\n", 
                     0, 0, 0 );
              rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
              e = &d;
              goto done;
       }

       rs->sr_err = backsql_has_children( op, dbh, &op->o_req_ndn );
       switch ( rs->sr_err ) {
       case LDAP_COMPARE_FALSE:
              rs->sr_err = LDAP_SUCCESS;
              break;

       case LDAP_COMPARE_TRUE:
#ifdef SLAP_CONTROL_X_TREE_DELETE
              if ( get_treeDelete( op ) ) {
                     rs->sr_err = LDAP_SUCCESS;
                     break;
              }
#endif /* SLAP_CONTROL_X_TREE_DELETE */

              Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
                     "entry \"%s\" has children\n",
                     op->o_req_dn.bv_val, 0, 0 );
              rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
              rs->sr_text = "subordinate objects must be deleted first";
              /* fallthru */

       default:
              e = &d;
              goto done;
       }

       assert( bsi.bsi_base_id.eid_oc != NULL );
       oc = bsi.bsi_base_id.eid_oc;
       if ( oc->bom_delete_proc == NULL ) {
              Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
                     "delete procedure is not defined "
                     "for this objectclass - aborting\n", 0, 0, 0 );
              rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
              rs->sr_text = "operation not permitted within namingContext";
              e = NULL;
              goto done;
       }

       /*
        * Get the parent
        */
       e_id = bsi.bsi_base_id;
       memset( &bsi.bsi_base_id, 0, sizeof( bsi.bsi_base_id ) );
       if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
              dnParent( &op->o_req_ndn, &pdn );
              bsi.bsi_e = &p;
              rs->sr_err = backsql_init_search( &bsi, &pdn,
                            LDAP_SCOPE_BASE, 
                            (time_t)(-1), NULL, dbh, op, rs,
                            slap_anlist_no_attrs,
                            BACKSQL_ISF_GET_ENTRY );
              if ( rs->sr_err != LDAP_SUCCESS ) {
                     Debug( LDAP_DEBUG_TRACE, "backsql_delete(): "
                            "could not retrieve deleteDN ID "
                            "- no such entry\n", 
                            0, 0, 0 );
                     e = &p;
                     goto done;
              }

              (void)backsql_free_entryID( &bsi.bsi_base_id, 0, op->o_tmpmemctx );

              /* check parent for "children" acl */
              if ( !access_allowed( op, &p, slap_schema.si_ad_children, 
                            NULL, ACL_WDEL, NULL ) )
              {
                     Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
                            "no write access to parent\n", 
                            0, 0, 0 );
                     rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
                     e = &p;
                     goto done;

              }
       }

       e = &d;
#ifdef SLAP_CONTROL_X_TREE_DELETE
       if ( get_treeDelete( op ) ) {
              backsql_tree_delete( op, rs, dbh, &sth );
              if ( rs->sr_err == LDAP_OTHER || rs->sr_err == LDAP_SUCCESS )
              {
                     e = NULL;
              }

       } else
#endif /* SLAP_CONTROL_X_TREE_DELETE */
       {
              backsql_delete_int( op, rs, dbh, &sth, &e_id, &e );
       }

       /*
        * Commit only if all operations succeed
        */
       if ( sth != SQL_NULL_HSTMT ) {
              SQLUSMALLINT  CompletionType = SQL_ROLLBACK;
       
              if ( rs->sr_err == LDAP_SUCCESS && !op->o_noop ) {
                     assert( e == NULL );
                     CompletionType = SQL_COMMIT;
              }

              SQLTransact( SQL_NULL_HENV, dbh, CompletionType );
       }

done:;
       if ( e != NULL ) {
              if ( !access_allowed( op, e, slap_schema.si_ad_entry, NULL,
                                   ACL_DISCLOSE, NULL ) )
              {
                     rs->sr_err = LDAP_NO_SUCH_OBJECT;
                     rs->sr_text = NULL;
                     rs->sr_matched = NULL;
                     if ( rs->sr_ref ) {
                            ber_bvarray_free( rs->sr_ref );
                            rs->sr_ref = NULL;
                     }
              }
       }

       if ( op->o_noop && rs->sr_err == LDAP_SUCCESS ) {
              rs->sr_err = LDAP_X_NO_OPERATION;
       }

       send_ldap_result( op, rs );

       Debug( LDAP_DEBUG_TRACE, "<==backsql_delete()\n", 0, 0, 0 );

       if ( !BER_BVISNULL( &e_id.eid_ndn ) ) {
              (void)backsql_free_entryID( &e_id, 0, op->o_tmpmemctx );
       }

       if ( !BER_BVISNULL( &d.e_nname ) ) {
              backsql_entry_clean( op, &d );
       }

       if ( !BER_BVISNULL( &p.e_nname ) ) {
              backsql_entry_clean( op, &p );
       }

       if ( rs->sr_ref ) {
              ber_bvarray_free( rs->sr_ref );
              rs->sr_ref = NULL;
       }

       return rs->sr_err;
}

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static int backsql_delete_all_attrs ( Operation op,
SlapReply rs,
SQLHDBC  dbh,
backsql_entryID eid 
) [static]

Definition at line 57 of file delete.c.

{
       backsql_delete_attr_t       bda;
       int                  rc;

       bda.op = op;
       bda.rs = rs;
       bda.dbh = dbh;
       bda.e_id = eid;
       
       rc = avl_apply( eid->eid_oc->bom_attrs, backsql_delete_attr_f, &bda,
                     BACKSQL_AVL_STOP, AVL_INORDER );
       if ( rc == BACKSQL_AVL_STOP ) {
              return rs->sr_err;
       }

       return LDAP_SUCCESS;
}

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static int backsql_delete_attr_f ( void v_at,
void v_bda 
) [static]

Definition at line 40 of file delete.c.

{
       backsql_at_map_rec   *at = (backsql_at_map_rec *)v_at;
       backsql_delete_attr_t       *bda = (backsql_delete_attr_t *)v_bda;
       int                  rc;

       rc = backsql_modify_delete_all_values( bda->op,
                     bda->rs, bda->dbh, bda->e_id, at );

       if ( rc != LDAP_SUCCESS ) {
              return BACKSQL_AVL_STOP;
       }

       return BACKSQL_AVL_CONTINUE;
}

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static int backsql_delete_int ( Operation op,
SlapReply rs,
SQLHDBC  dbh,
SQLHSTMT *  sthp,
backsql_entryID eid,
Entry **  ep 
) [static]

Definition at line 81 of file delete.c.

{
       backsql_info         *bi = (backsql_info*)op->o_bd->be_private;
       SQLHSTMT             sth = SQL_NULL_HSTMT;
       RETCODE                     rc;
       int                  prc = LDAP_SUCCESS;
       /* first parameter no */
       SQLUSMALLINT         pno = 0;

       sth = *sthp;

       /* avl_apply ... */
       rs->sr_err = backsql_delete_all_attrs( op, rs, dbh, eid );
       if ( rs->sr_err != LDAP_SUCCESS ) {
              goto done;
       }

       rc = backsql_Prepare( dbh, &sth, eid->eid_oc->bom_delete_proc, 0 );
       if ( rc != SQL_SUCCESS ) {
              Debug( LDAP_DEBUG_TRACE,
                     "   backsql_delete(): "
                     "error preparing delete query\n", 
                     0, 0, 0 );
              backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );

              rs->sr_err = LDAP_OTHER;
              rs->sr_text = "SQL-backend error";
              *ep = NULL;
              goto done;
       }

       if ( BACKSQL_IS_DEL( eid->eid_oc->bom_expect_return ) ) {
              pno = 1;
              rc = backsql_BindParamInt( sth, 1, SQL_PARAM_OUTPUT, &prc );
              if ( rc != SQL_SUCCESS ) {
                     Debug( LDAP_DEBUG_TRACE,
                            "   backsql_delete(): "
                            "error binding output parameter for objectClass %s\n",
                            eid->eid_oc->bom_oc->soc_cname.bv_val, 0, 0 );
                     backsql_PrintErrors( bi->sql_db_env, dbh, 
                            sth, rc );
                     SQLFreeStmt( sth, SQL_DROP );

                     rs->sr_text = "SQL-backend error";
                     rs->sr_err = LDAP_OTHER;
                     *ep = NULL;
                     goto done;
              }
       }

       rc = backsql_BindParamID( sth, pno + 1, SQL_PARAM_INPUT, &eid->eid_keyval );
       if ( rc != SQL_SUCCESS ) {
              Debug( LDAP_DEBUG_TRACE,
                     "   backsql_delete(): "
                     "error binding keyval parameter for objectClass %s\n",
                     eid->eid_oc->bom_oc->soc_cname.bv_val, 0, 0 );
              backsql_PrintErrors( bi->sql_db_env, dbh, 
                     sth, rc );
              SQLFreeStmt( sth, SQL_DROP );

              rs->sr_text = "SQL-backend error";
              rs->sr_err = LDAP_OTHER;
              *ep = NULL;
              goto done;
       }

       rc = SQLExecute( sth );
       if ( rc == SQL_SUCCESS && prc == LDAP_SUCCESS ) {
              rs->sr_err = LDAP_SUCCESS;

       } else {
              Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
                     "delete_proc execution failed (rc=%d, prc=%d)\n",
                     rc, prc, 0 );


              if ( prc != LDAP_SUCCESS ) {
                     /* SQL procedure executed fine 
                      * but returned an error */
                     rs->sr_err = BACKSQL_SANITIZE_ERROR( prc );

              } else {
                     backsql_PrintErrors( bi->sql_db_env, dbh,
                                   sth, rc );
                     rs->sr_err = LDAP_OTHER;
              }
              SQLFreeStmt( sth, SQL_DROP );
              goto done;
       }
       SQLFreeStmt( sth, SQL_DROP );

       /* delete "auxiliary" objectClasses, if any... */
       rc = backsql_Prepare( dbh, &sth, bi->sql_delobjclasses_stmt, 0 );
       if ( rc != SQL_SUCCESS ) {
              Debug( LDAP_DEBUG_TRACE,
                     "   backsql_delete(): "
                     "error preparing ldap_entry_objclasses delete query\n", 
                     0, 0, 0 );
              backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );

              rs->sr_err = LDAP_OTHER;
              rs->sr_text = "SQL-backend error";
              *ep = NULL;
              goto done;
       }

       rc = backsql_BindParamID( sth, 1, SQL_PARAM_INPUT, &eid->eid_id );
       if ( rc != SQL_SUCCESS ) {
              Debug( LDAP_DEBUG_TRACE,
                     "   backsql_delete(): "
                     "error binding auxiliary objectClasses "
                     "entry ID parameter for objectClass %s\n",
                     eid->eid_oc->bom_oc->soc_cname.bv_val, 0, 0 );
              backsql_PrintErrors( bi->sql_db_env, dbh, 
                     sth, rc );
              SQLFreeStmt( sth, SQL_DROP );

              rs->sr_text = "SQL-backend error";
              rs->sr_err = LDAP_OTHER;
              *ep = NULL;
              goto done;
       }

       rc = SQLExecute( sth );
       switch ( rc ) {
       case SQL_NO_DATA:
              /* apparently there were no "auxiliary" objectClasses
               * for this entry... */
       case SQL_SUCCESS:
              break;

       default:
              Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
                     "failed to delete record from ldap_entry_objclasses\n", 
                     0, 0, 0 );
              backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
              SQLFreeStmt( sth, SQL_DROP );
              rs->sr_err = LDAP_OTHER;
              rs->sr_text = "SQL-backend error";
              *ep = NULL;
              goto done;
       }
       SQLFreeStmt( sth, SQL_DROP );

       /* delete entry... */
       rc = backsql_Prepare( dbh, &sth, bi->sql_delentry_stmt, 0 );
       if ( rc != SQL_SUCCESS ) {
              Debug( LDAP_DEBUG_TRACE,
                     "   backsql_delete(): "
                     "error preparing ldap_entries delete query\n", 
                     0, 0, 0 );
              backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );

              rs->sr_err = LDAP_OTHER;
              rs->sr_text = "SQL-backend error";
              *ep = NULL;
              goto done;
       }

       rc = backsql_BindParamID( sth, 1, SQL_PARAM_INPUT, &eid->eid_id );
       if ( rc != SQL_SUCCESS ) {
              Debug( LDAP_DEBUG_TRACE,
                     "   backsql_delete(): "
                     "error binding entry ID parameter "
                     "for objectClass %s\n",
                     eid->eid_oc->bom_oc->soc_cname.bv_val, 0, 0 );
              backsql_PrintErrors( bi->sql_db_env, dbh, 
                     sth, rc );
              SQLFreeStmt( sth, SQL_DROP );

              rs->sr_text = "SQL-backend error";
              rs->sr_err = LDAP_OTHER;
              *ep = NULL;
              goto done;
       }

       rc = SQLExecute( sth );
       if ( rc != SQL_SUCCESS ) {
              Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
                     "failed to delete record from ldap_entries\n", 
                     0, 0, 0 );
              backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
              SQLFreeStmt( sth, SQL_DROP );
              rs->sr_err = LDAP_OTHER;
              rs->sr_text = "SQL-backend error";
              *ep = NULL;
              goto done;
       }
       SQLFreeStmt( sth, SQL_DROP );

       rs->sr_err = LDAP_SUCCESS;
       *ep = NULL;

done:;
       *sthp = sth;

       return rs->sr_err;
}

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static int backsql_tree_delete ( Operation op,
SlapReply rs,
SQLHDBC  dbh,
SQLHSTMT *  sthp 
) [static]

Definition at line 329 of file delete.c.

{
       Operation            op2 = *op;
       slap_callback        sc = { 0 };
       SlapReply            rs2 = { REP_RESULT };
       backsql_tree_delete_t       btd = { 0 };

       int                  rc;

       /*
        * - perform an internal subtree search as the rootdn
        * - for each entry
        *     - check access
        *     - check objectClass and delete method(s)
        * - for each entry
        *     - delete
        * - if successful, commit
        */

       op2.o_tag = LDAP_REQ_SEARCH;
       op2.o_protocol = LDAP_VERSION3;

       btd.btd_op = op;
       sc.sc_private = &btd;
       sc.sc_response = backsql_tree_delete_search_cb;
       op2.o_callback = &sc;

       op2.o_dn = op->o_bd->be_rootdn;
       op2.o_ndn = op->o_bd->be_rootndn;

       op2.o_managedsait = SLAP_CONTROL_CRITICAL;

       op2.ors_scope = LDAP_SCOPE_SUBTREE;
       op2.ors_deref = LDAP_DEREF_NEVER;
       op2.ors_slimit = SLAP_NO_LIMIT;
       op2.ors_tlimit = SLAP_NO_LIMIT;
       op2.ors_filter = (Filter *)slap_filter_objectClass_pres;
       op2.ors_filterstr = *slap_filterstr_objectClass_pres;
       op2.ors_attrs = slap_anlist_all_attributes;
       op2.ors_attrsonly = 0;

       rc = op->o_bd->be_search( &op2, &rs2 );
       if ( rc != LDAP_SUCCESS ) {
              rc = rs->sr_err = btd.btd_rc;
              rs->sr_text = "subtree delete not possible";
              send_ldap_result( op, rs );
              goto clean;
       }

       for ( ; btd.btd_eid != NULL;
              btd.btd_eid = backsql_free_entryID( btd.btd_eid,
                     1, op->o_tmpmemctx ) )
       {
              Entry  *e = (void *)0xbad;
              rc = backsql_delete_int( op, rs, dbh, sthp, btd.btd_eid, &e );
              if ( rc != LDAP_SUCCESS ) {
                     break;
              }
       }

clean:;
       for ( ; btd.btd_eid != NULL;
              btd.btd_eid = backsql_free_entryID( btd.btd_eid,
                     1, op->o_tmpmemctx ) )
              ;

       return rc;
}

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static int backsql_tree_delete_search_cb ( Operation op,
SlapReply rs 
) [static]

Definition at line 293 of file delete.c.

{
       if ( rs->sr_type == REP_SEARCH ) {
              backsql_tree_delete_t       *btd;
              backsql_entryID             *eid;

              btd = (backsql_tree_delete_t *)op->o_callback->sc_private;

              if ( !access_allowed( btd->btd_op, rs->sr_entry,
                     slap_schema.si_ad_entry, NULL, ACL_WDEL, NULL )
                     || !access_allowed( btd->btd_op, rs->sr_entry,
                     slap_schema.si_ad_children, NULL, ACL_WDEL, NULL ) )
              {
                     btd->btd_rc = LDAP_INSUFFICIENT_ACCESS;
                     return rs->sr_err = LDAP_UNAVAILABLE;
              }

              assert( rs->sr_entry != NULL );
              assert( rs->sr_entry->e_private != NULL );

              eid = (backsql_entryID *)rs->sr_entry->e_private;
              assert( eid->eid_oc != NULL );
              if ( eid->eid_oc == NULL || eid->eid_oc->bom_delete_proc == NULL ) {
                     btd->btd_rc = LDAP_UNWILLING_TO_PERFORM;
                     return rs->sr_err = LDAP_UNAVAILABLE;
              }

              eid = backsql_entryID_dup( eid, op->o_tmpmemctx );
              eid->eid_next = btd->btd_eid;
              btd->btd_eid = eid;
       }

       return 0;
}

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