]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/back-meta/modrdn.c
Add back-ndb
[openldap] / servers / slapd / back-meta / modrdn.c
index 10fa1c5a183b80baec613ac45cbf7b813496653f..90f708e9d645e34128feac7525a7697130ec0c07 100644 (file)
@@ -1,67 +1,23 @@
-/*
- * Copyright 1998-2003 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, Pierangelo Masarati, All rights reserved. <ando@sys-net.it>
+ * Copyright 1999-2008 The OpenLDAP Foundation.
+ * Portions Copyright 2001-2003 Pierangelo Masarati.
+ * Portions Copyright 1999-2003 Howard Chu.
+ * All rights reserved.
  *
- * This work has been developed to fulfill the requirements
- * of SysNet s.n.c. <http:www.sys-net.it> and it has been donated
- * to 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.
- *
- *
- * This software is based on the backend back-ldap, implemented
- * by Howard Chu <hyc@highlandsun.com>, and modified by Mark Valence
- * <kurash@sassafras.com>, Pierangelo Masarati <ando@sys-net.it> and other
- * contributors. The contribution of the original software to the present
- * implementation is acknowledged in this copyright statement.
- *
- * A special acknowledgement goes to Howard for the overall architecture
- * (and for borrowing large pieces of code), and to Mark, who implemented
- * from scratch the attribute/objectclass mapping.
- *
- * The original copyright statement follows.
- *
- * 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.
+ * 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 the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was initially developed by the Howard Chu for inclusion
+ * in OpenLDAP Software and subsequently enhanced by Pierangelo
+ * Masarati.
  */
 
 #include "portable.h"
 
 int
 meta_back_modrdn( Operation *op, SlapReply *rs )
-               /*
-               Backend         *be,
-               Connection      *conn,
-               Operation       *op,
-               struct berval   *dn,
-               struct berval   *ndn,
-               struct berval   *newrdn,
-               struct berval   *nnewrdn,
-               int             deleteoldrdn,
-               struct berval   *newSuperior,
-               struct berval   *nnewSuperior
-) */
 {
-       struct metainfo         *li = ( struct metainfo * )op->o_bd->be_private;
-       struct metaconn         *lc;
-       int                     rc = 0;
-       int                     candidate = -1;
-       char                    *mdn = NULL,
-                               *mnewSuperior = NULL;
-
-       lc = meta_back_getconn( op, rs, META_OP_REQUIRE_SINGLE,
-                       &op->o_req_ndn, &candidate );
-       if ( !lc ) {
-               rc = -1;
-               goto cleanup;
+       metainfo_t      *mi = ( metainfo_t * )op->o_bd->be_private;
+       metatarget_t    *mt;
+       metaconn_t      *mc;
+       int             candidate = -1;
+       struct berval   mdn = BER_BVNULL,
+                       mnewSuperior = BER_BVNULL;
+       dncookie        dc;
+       int             msgid;
+       int             do_retry = 1;
+       LDAPControl     **ctrls = NULL;
+       struct berval   newrdn = BER_BVNULL;
+
+       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;
        }
 
-       if ( !meta_back_dobind( lc, op ) 
-                       || !meta_back_is_valid( lc, candidate ) ) {
-               rs->sr_err = LDAP_OTHER;
-               rc = -1;
-               goto cleanup;
-       }
+       assert( mc->mc_conns[ candidate ].msc_ld != NULL );
+
+       mt = mi->mi_targets[ candidate ];
+       dc.target = mt;
+       dc.conn = op->o_conn;
+       dc.rs = rs;
+
+       if ( op->orr_newSup ) {
+
+               /*
+                * NOTE: the newParent, if defined, must be on the 
+                * same target as the entry to be renamed.  This check
+                * has been anticipated in meta_back_getconn()
+                */
+               /*
+                * FIXME: one possibility is to delete the entry
+                * from one target and add it to the other;
+                * unfortunately we'd need write access to both,
+                * which is nearly impossible; for administration
+                * needs, the rootdn of the metadirectory could
+                * be mapped to an administrative account on each
+                * target (the binddn?); we'll see.
+                */
+               /*
+                * NOTE: we need to port the identity assertion
+                * feature from back-ldap
+                */
+
+               /* needs LDAPv3 */
+               switch ( mt->mt_version ) {
+               case LDAP_VERSION3:
+                       break;
 
-       if ( op->oq_modrdn.rs_newSup ) {
-               int nsCandidate, version = LDAP_VERSION3;
-
-               nsCandidate = meta_back_select_unique_candidate( li,
-                               op->oq_modrdn.rs_newSup );
-
-               if ( nsCandidate != candidate ) {
-                       /*
-                        * FIXME: one possibility is to delete the entry
-                        * from one target and add it to the other;
-                        * unfortunately we'd need write access to both,
-                        * which is nearly impossible; for administration
-                        * needs, the rootdn of the metadirectory could
-                        * be mapped to an administrative account on each
-                        * target (the binddn?); we'll see.
-                        */
-                       /*
-                        * FIXME: is this the correct return code?
-                        */
+               case 0:
+                       if ( op->o_protocol == 0 || op->o_protocol == LDAP_VERSION3 ) {
+                               break;
+                       }
+                       /* fall thru */
+
+               default:
+                       /* op->o_protocol cannot be anything but LDAPv3,
+                        * otherwise wouldn't be here */
                        rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
-                       rc = -1;
+                       send_ldap_result( op, rs );
                        goto cleanup;
                }
-
-               ldap_set_option( lc->conns[ nsCandidate ].ld,
-                               LDAP_OPT_PROTOCOL_VERSION, &version );
                
                /*
                 * Rewrite the new superior, if defined and required
                 */
-               switch ( rewrite_session( li->targets[ nsCandidate ]->rwinfo,
-                                       "newSuperiorDn",
-                                       op->oq_modrdn.rs_newSup->bv_val, 
-                                       op->o_conn, 
-                                       &mnewSuperior ) ) {
-               case REWRITE_REGEXEC_OK:
-                       if ( mnewSuperior == NULL ) {
-                               mnewSuperior = ( char * )op->oq_modrdn.rs_newSup;
-                       }
-#ifdef NEW_LOGGING
-                       LDAP_LOG( BACK_META, DETAIL1,
-                               "[rw] newSuperiorDn: \"%s\" -> \"%s\"\n",
-                               op->oq_modrdn.rs_newSup, mnewSuperior, 0 );
-#else /* !NEW_LOGGING */
-                       Debug( LDAP_DEBUG_ARGS, "rw> newSuperiorDn:"
-                                       " \"%s\" -> \"%s\"\n",
-                                       op->oq_modrdn.rs_newSup->bv_val,
-                                       mnewSuperior, 0 );
-#endif /* !NEW_LOGGING */
-                       break;
-
-               case REWRITE_REGEXEC_UNWILLING:
-                       rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
-                       rs->sr_text = "Operation not allowed";
-                       rc = -1;
-                       goto cleanup;
-
-               case REWRITE_REGEXEC_ERR:
+               dc.ctx = "newSuperiorDN";
+               if ( ldap_back_dn_massage( &dc, op->orr_newSup, &mnewSuperior ) ) {
                        rs->sr_err = LDAP_OTHER;
-                       rs->sr_text = "Rewrite error";
-                       rc = -1;
+                       send_ldap_result( op, rs );
                        goto cleanup;
                }
        }
@@ -179,57 +112,66 @@ meta_back_modrdn( Operation *op, SlapReply *rs )
        /*
         * Rewrite the modrdn dn, if required
         */
-       switch ( rewrite_session( li->targets[ candidate ]->rwinfo,
-                               "modrDn", op->o_req_dn.bv_val,
-                               op->o_conn, &mdn ) ) {
-       case REWRITE_REGEXEC_OK:
-               if ( mdn == NULL ) {
-                       mdn = ( char * )op->o_req_dn.bv_val;
-               }
-#ifdef NEW_LOGGING
-               LDAP_LOG( BACK_META, DETAIL1,
-                               "[rw] modrDn: \"%s\" -> \"%s\"\n",
-                               op->o_req_dn.bv_val, mdn, 0 );
-#else /* !NEW_LOGGING */
-               Debug( LDAP_DEBUG_ARGS, "rw> modrDn: \"%s\" -> \"%s\"\n",
-                               op->o_req_dn.bv_val, mdn, 0 );
-#endif /* !NEW_LOGGING */
-               break;
-               
-       case REWRITE_REGEXEC_UNWILLING:
-               rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
-               rs->sr_text = "Operation not allowed";
-               rc = -1;
+       dc.ctx = "modrDN";
+       if ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) {
+               rs->sr_err = LDAP_OTHER;
+               send_ldap_result( op, rs );
                goto cleanup;
+       }
 
-       case REWRITE_REGEXEC_ERR:
-               rs->sr_err = LDAP_OTHER;
-               rs->sr_text = "Rewrite error";
-               rc = -1;
+       /* NOTE: we need to copy the newRDN in case it was formed
+        * from a DN by simply changing the length (ITS#5397) */
+       newrdn = op->orr_newrdn;
+       if ( newrdn.bv_val[ newrdn.bv_len ] != '\0' ) {
+               ber_dupbv_x( &newrdn, &op->orr_newrdn, op->o_tmpmemctx );
+       }
+
+retry:;
+       ctrls = op->o_ctrls;
+       if ( meta_back_controls_add( op, rs, mc, candidate, &ctrls ) != LDAP_SUCCESS )
+       {
+               send_ldap_result( op, rs );
                goto cleanup;
        }
 
-       ldap_rename2_s( lc->conns[ candidate ].ld, mdn,
-                       op->oq_modrdn.rs_newrdn.bv_val,
-                       mnewSuperior, op->oq_modrdn.rs_deleteoldrdn );
+       rs->sr_err = ldap_rename( mc->mc_conns[ candidate ].msc_ld,
+                       mdn.bv_val, newrdn.bv_val,
+                       mnewSuperior.bv_val, op->orr_deleteoldrdn,
+                       ctrls, NULL, &msgid );
+       rs->sr_err = meta_back_op_result( mc, op, rs, candidate, msgid,
+               mt->mt_timeout[ SLAP_OP_MODRDN ], LDAP_BACK_SENDRESULT );
+       if ( rs->sr_err == LDAP_UNAVAILABLE && do_retry ) {
+               do_retry = 0;
+               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:;
-       if ( mdn != op->o_req_dn.bv_val ) {
-               free( mdn );
+       (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 ( mnewSuperior != NULL 
-                       && mnewSuperior != op->oq_modrdn.rs_newSup->bv_val ) {
-               free( mnewSuperior );
+       if ( !BER_BVISNULL( &mnewSuperior )
+                       && mnewSuperior.bv_val != op->orr_newSup->bv_val )
+       {
+               free( mnewSuperior.bv_val );
+               BER_BVZERO( &mnewSuperior );
        }
 
-       if ( rc == 0 ) {
-               return meta_back_op_result( lc, op, rs ) == LDAP_SUCCESS
-                       ? 0 : 1;
-       } /* else */
+       if ( newrdn.bv_val != op->orr_newrdn.bv_val ) {
+               op->o_tmpfree( newrdn.bv_val, op->o_tmpmemctx );
+       }
 
-       send_ldap_result( op, rs );
-       return rc;
+       if ( mc ) {
+               meta_back_release_conn( mi, mc );
+       }
 
+       return rs->sr_err;
 }