]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/back-ldap/compare.c
allow proxies to filter out search references (ITS#5593)
[openldap] / servers / slapd / back-ldap / compare.c
index 8a6f8396b1f2c41dd6a72e813f41738c32785420..02666f9bb379aaa58d335fbd20c7d649196a71cb 100644 (file)
@@ -2,7 +2,9 @@
 /* $OpenLDAP$ */
 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
- * Copyright 2003 The OpenLDAP Foundation.
+ * Copyright 2003-2008 The OpenLDAP Foundation.
+ * Portions Copyright 1999-2003 Howard Chu.
+ * Portions Copyright 2000-2003 Pierangelo Masarati.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * in OpenLDAP Software and subsequently enhanced by Pierangelo
  * Masarati.
  */
-/* This is an altered version */
-/*
- * Copyright 1999, Howard Chu, All rights reserved. <hyc@highlandsun.com>
- * 
- * 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 is 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.
- * 
- * 4. This notice may not be removed or altered.
- *
- *
- *
- * Copyright 2000, Pierangelo Masarati, All rights reserved. <ando@sys-net.it>
- * 
- * This software is being modified by Pierangelo Masarati.
- * The previously reported conditions apply to the modified code as well.
- * Changes in the original code are highlighted where required.
- * Credits for the original code go to the author, Howard Chu.
- */
 
 #include "portable.h"
 
 
 int
 ldap_back_compare(
-    Operation  *op,
-    SlapReply  *rs )
+               Operation       *op,
+               SlapReply       *rs )
 {
-       struct ldapinfo *li = (struct ldapinfo *) op->o_bd->be_private;
-       struct ldapconn *lc;
-       struct berval mapped_at = { 0, NULL }, mapped_val = { 0, NULL };
-       struct berval mdn = { 0, NULL };
-       ber_int_t msgid;
-       int freeval = 0;
-       dncookie dc;
-#ifdef LDAP_BACK_PROXY_AUTHZ 
-       LDAPControl **ctrls = NULL;
-       int rc = LDAP_SUCCESS;
-#endif /* LDAP_BACK_PROXY_AUTHZ */
-
-       lc = ldap_back_getconn(op, rs);
-       if (!lc || !ldap_back_dobind( lc, op, rs ) ) {
-               return( -1 );
-       }
+       ldapinfo_t              *li = (ldapinfo_t *)op->o_bd->be_private;
 
-       /*
-        * Rewrite the compare dn, if needed
-        */
-       dc.rwmap = &li->rwmap;
-#ifdef ENABLE_REWRITE
-       dc.conn = op->o_conn;
-       dc.rs = rs;
-       dc.ctx = "compareDn";
-#else
-       dc.tofrom = 1;
-       dc.normalized = 0;
-#endif
-       if ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) {
-               send_ldap_result( op, rs );
-               return -1;
-       }
+       ldapconn_t              *lc = NULL;
+       ber_int_t               msgid;
+       ldap_back_send_t        retrying = LDAP_BACK_RETRYING;
+       LDAPControl             **ctrls = NULL;
+       int                     rc = LDAP_SUCCESS;
 
-       if ( op->orc_ava->aa_desc == slap_schema.si_ad_objectClass
-               || op->orc_ava->aa_desc == slap_schema.si_ad_structuralObjectClass ) {
-               ldap_back_map(&li->rwmap.rwm_oc, &op->orc_ava->aa_value,
-                               &mapped_val, BACKLDAP_MAP);
-               if (mapped_val.bv_val == NULL || mapped_val.bv_val[0] == '\0') {
-                       return( -1 );
-               }
-               mapped_at = op->orc_ava->aa_desc->ad_cname;
-       } else {
-               ldap_back_map(&li->rwmap.rwm_at,
-                               &op->orc_ava->aa_desc->ad_cname, &mapped_at, 
-                               BACKLDAP_MAP);
-               if (mapped_at.bv_val == NULL || mapped_at.bv_val[0] == '\0') {
-                       return( -1 );
-               }
-               if (op->orc_ava->aa_desc->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName ) {
-#ifdef ENABLE_REWRITE
-                       dc.ctx = "compareAttrDN";
-#endif
-                       ldap_back_dn_massage( &dc, &op->orc_ava->aa_value, &mapped_val );
-                       if (mapped_val.bv_val == NULL || mapped_val.bv_val[0] == '\0') {
-                               mapped_val = op->orc_ava->aa_value;
-                       } else if (mapped_val.bv_val != op->orc_ava->aa_value.bv_val) {
-                               freeval = 1;
-                       }
-               } else {
-                       mapped_val = op->orc_ava->aa_value;
-               }
+       if ( !ldap_back_dobind( &lc, op, rs, LDAP_BACK_SENDERR ) ) {
+               lc = NULL;
+               goto cleanup;
        }
 
-#ifdef LDAP_BACK_PROXY_AUTHZ
-       rc = ldap_back_proxy_authz_ctrl( lc, op, rs, &ctrls );
+retry:
+       ctrls = op->o_ctrls;
+       rc = ldap_back_controls_add( op, rs, lc, &ctrls );
        if ( rc != LDAP_SUCCESS ) {
+               send_ldap_result( op, rs );
                goto cleanup;
        }
-#endif /* LDAP_BACK_PROXY_AUTHZ */
 
-       rs->sr_err = ldap_compare_ext( lc->ld, mdn.bv_val,
-                       mapped_at.bv_val, &mapped_val, 
-#ifdef LDAP_BACK_PROXY_AUTHZ
-                       ctrls,
-#else /* ! LDAP_BACK_PROXY_AUTHZ */
-                       op->o_ctrls,
-#endif /* ! LDAP_BACK_PROXY_AUTHZ */
-                       NULL, &msgid );
+       rs->sr_err = ldap_compare_ext( lc->lc_ld, op->o_req_dn.bv_val,
+                       op->orc_ava->aa_desc->ad_cname.bv_val,
+                       &op->orc_ava->aa_value, 
+                       ctrls, NULL, &msgid );
+       rc = ldap_back_op_result( lc, op, rs, msgid,
+               li->li_timeout[ SLAP_OP_COMPARE ],
+               ( LDAP_BACK_SENDRESULT | retrying ) );
+       if ( rc == LDAP_UNAVAILABLE && retrying ) {
+               retrying &= ~LDAP_BACK_RETRYING;
+               if ( ldap_back_retry( &lc, op, rs, LDAP_BACK_SENDERR ) ) {
+                       /* if the identity changed, there might be need to re-authz */
+                       (void)ldap_back_controls_free( op, rs, &ctrls );
+                       goto retry;
+               }
+       }
 
-#ifdef LDAP_BACK_PROXY_AUTHZ
 cleanup:
-       if ( ctrls && ctrls != op->o_ctrls ) {
-               free( ctrls[ 0 ] );
-               free( ctrls );
-       }
-#endif /* LDAP_BACK_PROXY_AUTHZ */
+       (void)ldap_back_controls_free( op, rs, &ctrls );
        
-       if ( mdn.bv_val != op->o_req_dn.bv_val ) {
-               free( mdn.bv_val );
-       }
-       if ( freeval ) {
-               free( mapped_val.bv_val );
+       if ( lc != NULL ) {
+               ldap_back_release_conn( li, lc );
        }
 
-#ifdef LDAP_BACK_PROXY_AUTHZ
-       if ( rc != LDAP_SUCCESS ) {
-               send_ldap_result( op, rs );
-               return -1;
-       }
-#endif /* LDAP_BACK_PROXY_AUTHZ */
-       return( ldap_back_op_result( lc, op, rs, msgid, 1 ) );
+       return rs->sr_err;
 }