]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/back-monitor/search.c
Minor cleanup
[openldap] / servers / slapd / back-monitor / search.c
index 16d49e849531cba546a19240906956d1a78b8222..f567618ed0b2259ff228adaa5634d45ee6174085 100644 (file)
@@ -1,34 +1,22 @@
 /* search.c - monitor backend search function */
-/*
- * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2001-2011 The OpenLDAP Foundation.
+ * Portions Copyright 2001-2003 Pierangelo Masarati.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
  */
-/*
- * Copyright 2001, Pierangelo Masarati, All rights reserved. <ando@sys-net.it>
- * 
- * This work has beed deveolped for the OpenLDAP Foundation 
- * in the hope that it may be useful to the Open Source community, 
- * but WITHOUT ANY WARRANTY.
- * 
- * Permission is granted to anyone to use this software for any purpose
- * on any computer system, and to alter it and redistribute it, subject
- * to the following restrictions:
- * 
- * 1. The author and SysNet s.n.c. are not responsible for the consequences
- *    of use of this software, no matter how awful, even if they arise from
- *    flaws in it.
- * 
- * 2. The origin of this software must not be misrepresented, either by
- *    explicit claim or by omission.  Since few users ever read sources,
- *    credits should appear in the documentation.
- * 
- * 3. Altered versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.  Since few users
- *    ever read sources, credits should appear in the documentation.
- *    SysNet s.n.c. cannot be responsible for the consequences of the
- *    alterations.
- * 
- * 4. This notice may not be removed or altered.
+/* ACKNOWLEDGEMENTS:
+ * This work was initially developed by Pierangelo Masarati for inclusion
+ * in OpenLDAP Software.
  */
 
 #include "portable.h"
 
 static int
 monitor_send_children(
-       Backend         *be,
-       Connection      *conn,
-       Operation       *op,
-       Filter          *filter,
-       AttributeName   *attrs,
-       int             attrsonly,
+       Operation       *op,
+       SlapReply       *rs,
        Entry           *e_parent,
-       int             sub,
-       int             *nentriesp
-)
+       int             sub )
 {
-       struct monitorinfo      *mi = (struct monitorinfo *) be->be_private;
-       Entry                   *e, *e_tmp, *e_ch;
-       struct monitorentrypriv *mp;
-       int                     nentries;
-       int                     rc;
-
-       mp = ( struct monitorentrypriv * )e_parent->e_private;
-       e = mp->mp_children;
+       monitor_info_t  *mi = ( monitor_info_t * )op->o_bd->be_private;
+       Entry                   *e,
+                               *e_tmp,
+                               *e_ch = NULL,
+                               *e_nonvolatile = NULL;
+       monitor_entry_t *mp;
+       int                     rc,
+                               nonvolatile = 0;
+
+       mp = ( monitor_entry_t * )e_parent->e_private;
+       e_nonvolatile = e = mp->mp_children;
 
-       e_ch = NULL;
        if ( MONITOR_HAS_VOLATILE_CH( mp ) ) {
-               monitor_entry_create( mi, NULL, e_parent, &e_ch );
+               monitor_entry_create( op, rs, NULL, e_parent, &e_ch );
        }
        monitor_cache_release( mi, e_parent );
 
@@ -74,21 +58,20 @@ monitor_send_children(
        if ( e_ch == NULL ) {
                /* no persistent entries? return */
                if ( e == NULL ) {
-                       return( 0 );
+                       return LDAP_SUCCESS;
                }
-       
+
        /* volatile entries */
        } else {
                /* if no persistent, return only volatile */
                if ( e == NULL ) {
                        e = e_ch;
-                       monitor_cache_lock( e_ch );
 
                /* else append persistent to volatile */
                } else {
                        e_tmp = e_ch;
                        do {
-                               mp = ( struct monitorentrypriv * )e_tmp->e_private;
+                               mp = ( monitor_entry_t * )e_tmp->e_private;
                                e_tmp = mp->mp_next;
        
                                if ( e_tmp == NULL ) {
@@ -101,126 +84,169 @@ monitor_send_children(
        }
 
        /* return entries */
-       for ( nentries = *nentriesp; e != NULL; ) {
-               mp = ( struct monitorentrypriv * )e->e_private;
+       for ( monitor_cache_lock( e ); e != NULL; ) {
+               monitor_entry_update( op, rs, e );
+
+               if ( e == e_nonvolatile )
+                       nonvolatile = 1;
 
-               monitor_entry_update( mi, e );
-               
-               rc = test_filter( be, conn, op, e, filter );
+               mp = ( monitor_entry_t * )e->e_private;
+               e_tmp = mp->mp_next;
+
+               if ( op->o_abandon ) {
+                       monitor_cache_release( mi, e );
+                       rc = SLAPD_ABANDON;
+                       goto freeout;
+               }
+
+               rc = test_filter( op, e, op->oq_search.rs_filter );
                if ( rc == LDAP_COMPARE_TRUE ) {
-                       send_search_entry( be, conn, op, e, 
-                                       attrs, attrsonly, NULL );
-                       nentries++;
+                       rs->sr_entry = e;
+                       rs->sr_flags = 0;
+                       rc = send_search_entry( op, rs );
+                       rs->sr_entry = NULL;
+                       if ( rc ) {
+                               monitor_cache_release( mi, e );
+                               goto freeout;
+                       }
                }
 
-               if ( ( mp->mp_children || MONITOR_HAS_VOLATILE_CH( mp ) )
-                               && sub ) {
-                       rc = monitor_send_children( be, conn, op, filter, 
-                                       attrs, attrsonly, 
-                                       e, sub, &nentries );
+               if ( sub ) {
+                       rc = monitor_send_children( op, rs, e, sub );
                        if ( rc ) {
+freeout:
+                               /* FIXME: may leak generated children */
+                               if ( nonvolatile == 0 ) {
+                                       for ( ; e_tmp != NULL; ) {
+                                               mp = ( monitor_entry_t * )e_tmp->e_private;
+                                               e = e_tmp;
+                                               e_tmp = mp->mp_next;
+                                               monitor_cache_lock( mi, e );
+                                               monitor_cache_release( mi, e );
+       
+                                               if ( e_tmp == e_nonvolatile ) {
+                                                       break;
+                                               }
+                                       }
+                               }
+
                                return( rc );
                        }
                }
 
-               e_tmp = mp->mp_next;
                if ( e_tmp != NULL ) {
                        monitor_cache_lock( e_tmp );
                }
-               monitor_cache_release( mi, e );
+
+               if ( !sub ) {
+                       /* otherwise the recursive call already released */
+                       monitor_cache_release( mi, e );
+               }
+
                e = e_tmp;
        }
        
-       return( 0 );
+       return LDAP_SUCCESS;
 }
 
 int
-monitor_back_search(
-       Backend         *be,
-       Connection      *conn,
-       Operation       *op,
-       struct berval   *base,
-       struct berval   *nbase,
-       int             scope,
-       int             deref,
-       int             slimit,
-       int             tlimit,
-       Filter          *filter,
-       struct berval   *filterstr,
-       AttributeName   *attrs,
-       int             attrsonly 
-)
+monitor_back_search( Operation *op, SlapReply *rs )
 {
-       struct monitorinfo      *mi = (struct monitorinfo *) be->be_private;
-       int             rc;
-       Entry           *e, *matched = NULL;
-       int             nentries = 0;
+       monitor_info_t  *mi = ( monitor_info_t * )op->o_bd->be_private;
+       int             rc = LDAP_SUCCESS;
+       Entry           *e = NULL, *matched = NULL;
+       slap_mask_t     mask;
 
-#ifdef NEW_LOGGING
-       LDAP_LOG( BACK_MON, ENTRY,
-                  "monitor_back_search: enter\n", 0, 0, 0 );
-#else
-       Debug(LDAP_DEBUG_TRACE, "=> monitor_back_search\n%s%s%s", "", "", "");
-#endif
+       Debug( LDAP_DEBUG_TRACE, "=> monitor_back_search\n", 0, 0, 0 );
 
 
        /* get entry with reader lock */
-       monitor_cache_dn2entry( mi, nbase, &e, &matched );
+       monitor_cache_dn2entry( op, rs, &op->o_req_ndn, &e, &matched );
        if ( e == NULL ) {
-               send_ldap_result( conn, op, LDAP_NO_SUCH_OBJECT,
-                       matched ? matched->e_dn : NULL, 
-                       NULL, NULL, NULL );
+               rs->sr_err = LDAP_NO_SUCH_OBJECT;
+               if ( matched ) {
+                       if ( !access_allowed_mask( op, matched,
+                                       slap_schema.si_ad_entry,
+                                       NULL, ACL_DISCLOSE, NULL, NULL ) )
+                       {
+                               /* do nothing */ ;
+                       } else {
+                               rs->sr_matched = matched->e_dn;
+                       }
+               }
+
+               send_ldap_result( op, rs );
                if ( matched ) {
                        monitor_cache_release( mi, matched );
+                       rs->sr_matched = NULL;
+               }
+
+               return rs->sr_err;
+       }
+
+       /* NOTE: __NEW__ "search" access is required
+        * on searchBase object */
+       if ( !access_allowed_mask( op, e, slap_schema.si_ad_entry,
+                               NULL, ACL_SEARCH, NULL, &mask ) )
+       {
+               monitor_cache_release( mi, e );
+
+               if ( !ACL_GRANT( mask, ACL_DISCLOSE ) ) {
+                       rs->sr_err = LDAP_NO_SUCH_OBJECT;
+               } else {
+                       rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
                }
 
-               return( 0 );
+               send_ldap_result( op, rs );
+
+               return rs->sr_err;
        }
 
-       nentries = 0;
-       switch ( scope ) {
+       rs->sr_attrs = op->oq_search.rs_attrs;
+       switch ( op->oq_search.rs_scope ) {
        case LDAP_SCOPE_BASE:
-               monitor_entry_update( mi, e );
-               rc = test_filter( be, conn, op, e, filter );
-               if ( rc == LDAP_COMPARE_TRUE ) {                        
-                       send_search_entry( be, conn, op, e, attrs, 
-                                       attrsonly, NULL );
-                       nentries = 1;
+               monitor_entry_update( op, rs, e );
+               rc = test_filter( op, e, op->oq_search.rs_filter );
+               if ( rc == LDAP_COMPARE_TRUE ) {
+                       rs->sr_entry = e;
+                       rs->sr_flags = 0;
+                       send_search_entry( op, rs );
+                       rs->sr_entry = NULL;
                }
+               rc = LDAP_SUCCESS;
                monitor_cache_release( mi, e );
                break;
 
        case LDAP_SCOPE_ONELEVEL:
-               rc = monitor_send_children( be, conn, op, filter,
-                               attrs, attrsonly,
-                               e, 0, &nentries );
-               if ( rc ) {
-                       // error
-               }               
-               
+       case LDAP_SCOPE_SUBORDINATE:
+               rc = monitor_send_children( op, rs, e,
+                       op->oq_search.rs_scope == LDAP_SCOPE_SUBORDINATE );
                break;
 
        case LDAP_SCOPE_SUBTREE:
-               monitor_entry_update( mi, e );
-               rc = test_filter( be, conn, op, e, filter );
+               monitor_entry_update( op, rs, e );
+               rc = test_filter( op, e, op->oq_search.rs_filter );
                if ( rc == LDAP_COMPARE_TRUE ) {
-                       send_search_entry( be, conn, op, e, attrs,
-                                       attrsonly, NULL );
-                       nentries++;
-               }
-
-               rc = monitor_send_children( be, conn, op, filter,
-                               attrs, attrsonly,
-                               e, 1, &nentries );
-               if ( rc ) {
-                       // error
+                       rs->sr_entry = e;
+                       rs->sr_flags = 0;
+                       send_search_entry( op, rs );
+                       rs->sr_entry = NULL;
                }
 
+               rc = monitor_send_children( op, rs, e, 1 );
                break;
+
+       default:
+               rc = LDAP_UNWILLING_TO_PERFORM;
+               monitor_cache_release( mi, e );
        }
-       
-       send_search_result( conn, op, LDAP_SUCCESS,
-                       NULL, NULL, NULL, NULL, nentries );
 
-       return( 0 );
+       rs->sr_attrs = NULL;
+       rs->sr_err = rc;
+       if ( rs->sr_err != SLAPD_ABANDON ) {
+               send_ldap_result( op, rs );
+       }
+
+       return rs->sr_err;
 }
+