]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/modrdn.c
zap charray
[openldap] / servers / slapd / modrdn.c
index 4928727817c1ed4f9b29fbd11eadc836893fc17c..7c8b4390bfeb8436ac01a9230dfd42e8343cc4aa 100644 (file)
@@ -1,3 +1,8 @@
+/* $OpenLDAP$ */
+/*
+ * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
 /*
  * Copyright (c) 1995 Regents of the University of Michigan.
  * All rights reserved.
  * is provided ``as is'' without express or implied warranty.
  */
 
+/*
+ * LDAP v3 newSuperior support.
+ *
+ * Copyright 1999, Juan C. Gomez, All rights reserved.
+ * This software is not subject to any license of Silicon Graphics 
+ * Inc. or Purdue University.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * without restriction or fee of any kind as long as this notice
+ * is preserved.
+ *
+ */
+
 #include "portable.h"
 
 #include <stdio.h>
 #include <ac/socket.h>
 #include <ac/string.h>
 
+#include "ldap_pvt.h"
 #include "slap.h"
 
-extern Backend *select_backend();
-
-extern char    *default_referral;
-
-void
+int
 do_modrdn(
     Connection *conn,
     Operation  *op
 )
 {
-       char    *dn, *odn, *newrdn;
-       int     deloldrdn;
+       struct berval dn = { 0, NULL };
+       struct berval newrdn = { 0, NULL };
+       struct berval newSuperior = { 0, NULL };
+       ber_int_t       deloldrdn;
+
+       struct berval pdn = { 0, NULL };
+       struct berval pnewrdn = { 0, NULL };
+       struct berval pnewSuperior = { 0, NULL }, *pnewS = NULL;
+
+       struct berval ndn = { 0, NULL };
+       struct berval nnewrdn = { 0, NULL };
+       struct berval nnewSuperior = { 0, NULL }, *nnewS = NULL;
+
        Backend *be;
+       Backend *newSuperior_be = NULL;
+       ber_len_t       length;
+       int rc;
+       const char *text;
+       int manageDSAit;
 
+#ifdef NEW_LOGGING
+       LDAP_LOG( OPERATION, ENTRY, "do_modrdn: begin\n", 0, 0, 0 );
+#else
        Debug( LDAP_DEBUG_TRACE, "do_modrdn\n", 0, 0, 0 );
+#endif
+
 
        /*
         * Parse the modrdn request.  It looks like this:
@@ -41,65 +77,458 @@ do_modrdn(
         *      ModifyRDNRequest := SEQUENCE {
         *              entry   DistinguishedName,
         *              newrdn  RelativeDistinguishedName
+        *              deleteoldrdn    BOOLEAN,
+        *              newSuperior     [0] LDAPDN OPTIONAL (v3 Only!)
         *      }
         */
 
-       if ( ber_scanf( op->o_ber, "{aab}", &dn, &newrdn, &deloldrdn )
-           == LBER_ERROR ) {
+       if ( ber_scanf( op->o_ber, "{mmb", &dn, &newrdn, &deloldrdn )
+           == LBER_ERROR )
+       {
+#ifdef NEW_LOGGING
+               LDAP_LOG( OPERATION, ERR, "do_modrdn: ber_scanf failed\n", 0, 0, 0 );
+#else
                Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
-               send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR, NULL, "" );
-               return;
+#endif
+
+               send_ldap_disconnect( conn, op,
+                       LDAP_PROTOCOL_ERROR, "decoding error" );
+               return SLAPD_DISCONNECT;
+       }
+
+       /* Check for newSuperior parameter, if present scan it */
+
+       if ( ber_peek_tag( op->o_ber, &length ) == LDAP_TAG_NEWSUPERIOR ) {
+               if ( op->o_protocol < LDAP_VERSION3 ) {
+                       /* Conection record indicates v2 but field 
+                        * newSuperior is present: report error.
+                        */
+#ifdef NEW_LOGGING
+                       LDAP_LOG( OPERATION, ERR,
+                               "do_modrdn: (v2) invalid field newSuperior.\n", 0, 0, 0 );
+#else
+                       Debug( LDAP_DEBUG_ANY,
+                           "modrdn(v2): invalid field newSuperior!\n",
+                           0, 0, 0 );
+#endif
+
+                       send_ldap_disconnect( conn, op,
+                               LDAP_PROTOCOL_ERROR, "newSuperior requires LDAPv3" );
+                       rc = SLAPD_DISCONNECT;
+                       goto cleanup;
+               }
+
+               if ( ber_scanf( op->o_ber, "m", &newSuperior ) 
+                    == LBER_ERROR ) {
+
+#ifdef NEW_LOGGING
+                       LDAP_LOG( OPERATION, ERR,
+                               "do_modrdn: ber_scanf(\"m\") failed\n", 0, 0, 0 );
+#else
+                       Debug( LDAP_DEBUG_ANY, "ber_scanf(\"m\") failed\n",
+                               0, 0, 0 );
+#endif
+
+                       send_ldap_disconnect( conn, op,
+                               LDAP_PROTOCOL_ERROR, "decoding error" );
+                       rc = SLAPD_DISCONNECT;
+                       goto cleanup;
+               }
+               pnewS = &pnewSuperior;
+               nnewS = &nnewSuperior;
        }
-       odn = strdup( dn );
-       dn_normalize( dn );
 
+#ifdef NEW_LOGGING
+       LDAP_LOG( OPERATION, ARGS, 
+               "do_modrdn: dn (%s) newrdn (%s) newsuperior(%s)\n",
+               dn.bv_val, newrdn.bv_val,
+               newSuperior.bv_len ? newSuperior.bv_val : "" );
+#else
        Debug( LDAP_DEBUG_ARGS,
-           "do_modrdn: dn (%s) newrdn (%s) deloldrdn (%d)\n", dn, newrdn,
-           deloldrdn );
+           "do_modrdn: dn (%s) newrdn (%s) newsuperior (%s)\n",
+               dn.bv_val, newrdn.bv_val,
+               newSuperior.bv_len ? newSuperior.bv_val : "" );
+#endif
+
+       if ( ber_scanf( op->o_ber, /*{*/ "}") == LBER_ERROR ) {
+#ifdef NEW_LOGGING
+               LDAP_LOG( OPERATION, ERR, "do_modrdn: ber_scanf failed\n", 0, 0, 0 );
+#else
+               Debug( LDAP_DEBUG_ANY, "do_modrdn: ber_scanf failed\n", 0, 0, 0 );
+#endif
+
+               send_ldap_disconnect( conn, op,
+                       LDAP_PROTOCOL_ERROR, "decoding error" );
+               rc = SLAPD_DISCONNECT;
+               goto cleanup;
+       }
+
+       if( (rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
+#ifdef NEW_LOGGING
+               LDAP_LOG( OPERATION, ERR, "do_modrdn: get_ctrls failed\n", 0, 0, 0 );
+#else
+               Debug( LDAP_DEBUG_ANY, "do_modrdn: get_ctrls failed\n", 0, 0, 0 );
+#endif
+
+               /* get_ctrls has sent results.  Now clean up. */
+               goto cleanup;
+       } 
+
+       rc = dnPrettyNormal( NULL, &dn, &pdn, &ndn );
+       if( rc != LDAP_SUCCESS ) {
+#ifdef NEW_LOGGING
+               LDAP_LOG( OPERATION, INFO, 
+                       "do_modrdn: conn %d  invalid dn (%s)\n",
+                       conn->c_connid, dn.bv_val, 0 );
+#else
+               Debug( LDAP_DEBUG_ANY,
+                       "do_modrdn: invalid dn (%s)\n", dn.bv_val, 0, 0 );
+#endif
+               send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
+                   "invalid DN", NULL, NULL );
+               goto cleanup;
+       }
+
+       if( ndn.bv_len == 0 ) {
+#ifdef NEW_LOGGING
+               LDAP_LOG( OPERATION, ERR,
+                       "do_modrdn:  attempt to modify root DSE.\n", 0, 0, 0 );
+#else
+               Debug( LDAP_DEBUG_ANY, "do_modrdn: root dse!\n", 0, 0, 0 );
+#endif
+
+               send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
+                       NULL, "cannot rename the root DSE", NULL, NULL );
+               goto cleanup;
+
+#ifdef SLAPD_SCHEMA_DN
+       } else if ( bvmatch( &ndn, &global_schemandn ) ) {
+#ifdef NEW_LOGGING
+               LDAP_LOG( OPERATION, ERR,
+                       "do_modrdn: attempt to modify subschema subentry: %s (%ld)\n",
+                       global_schemandn.bv_val, (long) global_schemandn.bv_len, 0 );
+#else
+               Debug( LDAP_DEBUG_ANY, "do_modrdn: subschema subentry: %s (%ld)\n",
+                       global_schemandn.bv_val, (long) global_schemandn.bv_len, 0 );
+#endif
+
+               send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
+                       NULL, "cannot rename subschema subentry", NULL, NULL );
+               goto cleanup;
+#endif
+       }
+
+       /* FIXME: should have/use rdnPretty / rdnNormalize routines */
+
+       rc = dnPrettyNormal( NULL, &newrdn, &pnewrdn, &nnewrdn );
+       if( rc != LDAP_SUCCESS ) {
+#ifdef NEW_LOGGING
+               LDAP_LOG( OPERATION, INFO, 
+                       "do_modrdn: conn %d  invalid newrdn (%s)\n",
+                       conn->c_connid, newrdn.bv_val, 0 );
+#else
+               Debug( LDAP_DEBUG_ANY,
+                       "do_modrdn: invalid newrdn (%s)\n", newrdn.bv_val, 0, 0 );
+#endif
+               send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
+                   "invalid new RDN", NULL, NULL );
+               goto cleanup;
+       }
+
+       if( rdnValidate( &pnewrdn ) != LDAP_SUCCESS ) {
+#ifdef NEW_LOGGING
+               LDAP_LOG( OPERATION, ERR, 
+                       "do_modrdn: invalid rdn (%s).\n", pnewrdn.bv_val, 0, 0 );
+#else
+               Debug( LDAP_DEBUG_ANY, "do_modrdn: invalid rdn (%s)\n",
+                       pnewrdn.bv_val, 0, 0 );
+#endif
+
+               send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
+                   "invalid new RDN", NULL, NULL );
+               goto cleanup;
+       }
+
+       if( pnewS ) {
+               rc = dnPrettyNormal( NULL, &newSuperior, &pnewSuperior,
+                       &nnewSuperior );
+               if( rc != LDAP_SUCCESS ) {
+#ifdef NEW_LOGGING
+                       LDAP_LOG( OPERATION, INFO, 
+                               "do_modrdn: conn %d  invalid newSuperior (%s)\n",
+                               conn->c_connid, newSuperior.bv_val, 0 );
+#else
+                       Debug( LDAP_DEBUG_ANY,
+                               "do_modrdn: invalid newSuperior (%s)\n",
+                               newSuperior.bv_val, 0, 0 );
+#endif
+                       send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
+                               "invalid newSuperior", NULL, NULL );
+                       goto cleanup;
+               }
+       }
 
-       Statslog( LDAP_DEBUG_STATS, "conn=%d op=%d MODRDN dn=\"%s\"\n",
-           conn->c_connid, op->o_opid, dn, 0, 0 );
+       Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MODRDN dn=\"%s\"\n",
+           op->o_connid, op->o_opid, pdn.bv_val, 0, 0 );
+
+       manageDSAit = get_manageDSAit( op );
 
        /*
         * We could be serving multiple database backends.  Select the
         * appropriate one, or send a referral to our "referral server"
         * if we don't hold it.
         */
+       if ( (be = select_backend( &ndn, manageDSAit, 0 )) == NULL ) {
+               BerVarray ref = referral_rewrite( default_referral,
+                       NULL, &pdn, LDAP_SCOPE_DEFAULT );
+
+               send_ldap_result( conn, op, rc = LDAP_REFERRAL,
+                       NULL, NULL, ref ? ref : default_referral, NULL );
+
+               ber_bvarray_free( ref );
+               goto cleanup;
+       }
+
+       /* check restrictions */
+       rc = backend_check_restrictions( be, conn, op, NULL, &text ) ;
+       if( rc != LDAP_SUCCESS ) {
+               send_ldap_result( conn, op, rc,
+                       NULL, text, NULL, NULL );
+               goto cleanup;
+       }
 
-       if ( (be = select_backend( dn )) == NULL ) {
-               free( dn );
-               free( odn );
-               free( newrdn );
-               send_ldap_result( conn, op, LDAP_PARTIAL_RESULTS, NULL,
-                   default_referral );
-               return;
+       /* check for referrals */
+       rc = backend_check_referrals( be, conn, op, &pdn, &ndn );
+       if ( rc != LDAP_SUCCESS ) {
+               goto cleanup;
        }
 
+       /* Make sure that the entry being changed and the newSuperior are in 
+        * the same backend, otherwise we return an error.
+        */
+       if( pnewS ) {
+               newSuperior_be = select_backend( &nnewSuperior, 0, 0 );
+
+               if ( newSuperior_be != be ) {
+                       /* newSuperior is in same backend */
+                       rc = LDAP_AFFECTS_MULTIPLE_DSAS;
+
+                       send_ldap_result( conn, op, rc,
+                               NULL, "cannot rename between DSAa", NULL, NULL );
+
+                       goto cleanup;
+               }
+
+               /* deref suffix alias if appropriate */
+               suffix_alias( be, &nnewSuperior );
+       }
+
+       /* deref suffix alias if appropriate */
+       suffix_alias( be, &ndn );
+
        /*
         * do the add if 1 && (2 || 3)
         * 1) there is an add function implemented in this backend;
         * 2) this backend is master for what it holds;
-        * 3) it's a replica and the dn supplied is the updatedn.
+        * 3) it's a replica and the dn supplied is the update_ndn.
         */
-       if ( be->be_modrdn != NULL ) {
+       if ( be->be_modrdn ) {
                /* do the update here */
-               if ( be->be_updatedn == NULL || strcasecmp( be->be_updatedn,
-                   op->o_dn ) == 0 ) {
-                       if ( (*be->be_modrdn)( be, conn, op, dn, newrdn,
-                           deloldrdn ) == 0 ) {
-                               replog( be, LDAP_REQ_MODRDN, odn, newrdn,
-                                   deloldrdn );
+               int repl_user = be_isupdate( be, &op->o_ndn );
+#ifndef SLAPD_MULTIMASTER
+               if ( !be->be_update_ndn.bv_len || repl_user )
+#endif
+               {
+                       if ( (*be->be_modrdn)( be, conn, op, &pdn, &ndn,
+                               &pnewrdn, &nnewrdn, deloldrdn,
+                               pnewS, nnewS ) == 0
+#ifdef SLAPD_MULTIMASTER
+                               && ( !be->be_update_ndn.bv_len || !repl_user )
+#endif
+                       ) {
+                               struct slap_replog_moddn moddn;
+                               moddn.newrdn = &pnewrdn;
+                               moddn.deloldrdn = deloldrdn;
+                               moddn.newsup = &pnewSuperior;
+
+                               replog( be, op, &pdn, &ndn, &moddn );
                        }
+#ifndef SLAPD_MULTIMASTER
                } else {
-                       send_ldap_result( conn, op, LDAP_PARTIAL_RESULTS, NULL,
-                           default_referral );
+                       BerVarray defref = be->be_update_refs
+                               ? be->be_update_refs : default_referral;
+                       BerVarray ref = referral_rewrite( defref,
+                               NULL, &pdn, LDAP_SCOPE_DEFAULT );
+
+                       send_ldap_result( conn, op, rc = LDAP_REFERRAL, NULL, NULL,
+                               ref ? ref : defref, NULL );
+
+                       ber_bvarray_free( ref );
+#endif
                }
        } else {
-               send_ldap_result( conn, op, LDAP_UNWILLING_TO_PERFORM, NULL,
-                   "Function not implemented" );
+               send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
+                       NULL, "operation not supported within namingContext",
+                       NULL, NULL );
+       }
+
+cleanup:
+       free( pdn.bv_val );
+       free( ndn.bv_val );
+
+       free( pnewrdn.bv_val ); 
+       free( nnewrdn.bv_val ); 
+
+       if ( pnewSuperior.bv_val ) free( pnewSuperior.bv_val );
+       if ( nnewSuperior.bv_val ) free( nnewSuperior.bv_val );
+
+       return rc;
+}
+
+int
+slap_modrdn2mods(
+       Backend         *be,
+       Connection      *conn,
+       Operation       *op,
+       Entry           *e,
+       LDAPRDN         *old_rdn,
+       LDAPRDN         *new_rdn,
+       int             deleteoldrdn,
+       Modifications   **pmod )
+{
+       int             rc = LDAP_SUCCESS;
+       const char      *text;
+       Modifications   *mod = NULL;
+       int             a_cnt, d_cnt;
+
+       assert( new_rdn != NULL );
+       assert( !deleteoldrdn || old_rdn != NULL );
+
+       /* Add new attribute values to the entry */
+       for ( a_cnt = 0; new_rdn[ 0 ][ a_cnt ]; a_cnt++ ) {
+               AttributeDescription    *desc = NULL;
+               Modifications           *mod_tmp;
+
+               rc = slap_bv2ad( &new_rdn[ 0 ][ a_cnt ]->la_attr, 
+                               &desc, &text );
+
+               if ( rc != LDAP_SUCCESS ) {
+#ifdef NEW_LOGGING
+                       LDAP_LOG ( OPERATION, ERR, 
+                               "slap_modrdn2modlist: %s: %s (new)\n", 
+                               text, 
+                               new_rdn[ 0 ][ a_cnt ]->la_attr.bv_val, 0 );
+#else
+                       Debug( LDAP_DEBUG_TRACE,
+                               "slap_modrdn2modlist: %s: %s (new)\n",
+                               text, 
+                               new_rdn[ 0 ][ a_cnt ]->la_attr.bv_val, 0 );
+#endif
+                       goto done;              
+               }
+
+               /* ACL check of newly added attrs */
+               if ( be && !access_allowed( be, conn, op, e, desc,
+                       &new_rdn[ 0 ][ a_cnt ]->la_value, ACL_WRITE, NULL ) ) {
+#ifdef NEW_LOGGING
+                       LDAP_LOG ( OPERATION, ERR, 
+                               "slap_modrdn2modlist: access to attr \"%s\" "
+                               "(new) not allowed\n", 
+                               new_rdn[ 0 ][a_cnt]->la_attr.bv_val, 0, 0 );
+#else
+                       Debug( LDAP_DEBUG_TRACE,
+                               "slap_modrdn2modlist: access to attr \"%s\" "
+                               "(new) not allowed\n", 
+                               new_rdn[ 0 ][ a_cnt ]->la_attr.bv_val, 0, 0 );
+#endif
+                       rc = LDAP_INSUFFICIENT_ACCESS;
+                       goto done;
+               }
+
+               /* Apply modification */
+               mod_tmp = ( Modifications * )ch_malloc( sizeof( Modifications )
+                       + 2 * sizeof( struct berval ) );
+               mod_tmp->sml_desc = desc;
+               mod_tmp->sml_bvalues = ( BerVarray )( mod_tmp + 1 );
+               mod_tmp->sml_bvalues[ 0 ] = new_rdn[ 0 ][ a_cnt ]->la_value;
+               mod_tmp->sml_bvalues[ 1 ].bv_val = NULL;
+               mod_tmp->sml_op = SLAP_MOD_SOFTADD;
+               mod_tmp->sml_next = mod;
+               mod = mod_tmp;
        }
 
-       free( dn );
-       free( odn );
-       free( newrdn );
+       /* Remove old rdn value if required */
+       if ( deleteoldrdn ) {
+               for ( d_cnt = 0; old_rdn[ 0 ][ d_cnt ]; d_cnt++ ) {
+                       AttributeDescription    *desc = NULL;
+                       Modifications           *mod_tmp;
+
+                       rc = slap_bv2ad( &old_rdn[ 0 ][ d_cnt ]->la_attr,
+                                       &desc, &text );
+
+                       if ( rc != LDAP_SUCCESS ) {
+#ifdef NEW_LOGGING
+                               LDAP_LOG ( OPERATION, ERR, 
+                                       "slap_modrdn2modlist: %s: %s (old)\n", 
+                                       text, 
+                                       old_rdn[ 0 ][ d_cnt ]->la_attr.bv_val, 
+                                       0 );
+#else
+                               Debug( LDAP_DEBUG_TRACE,
+                                       "slap_modrdn2modlist: %s: %s (old)\n",
+                                       text, 
+                                       old_rdn[ 0 ][ d_cnt ]->la_attr.bv_val, 
+                                       0 );
+#endif
+                               goto done;              
+                       }
+
+                       /* ACL check of newly added attrs */
+                       if ( be && !access_allowed( be, conn, op, e, desc,
+                               &old_rdn[ 0 ][ d_cnt ]->la_value, ACL_WRITE, 
+                               NULL ) ) {
+#ifdef NEW_LOGGING
+                               LDAP_LOG ( OPERATION, ERR, 
+                                       "slap_modrdn2modlist: access "
+                                       "to attr \"%s\" (old) not allowed\n", 
+                                       old_rdn[ 0 ][ d_cnt ]->la_attr.bv_val, 
+                                       0, 0 );
+#else
+                               Debug( LDAP_DEBUG_TRACE,
+                                       "slap_modrdn2modlist: access "
+                                       "to attr \"%s\" (old) not allowed\n", 
+                                       old_rdn[ 0 ][ d_cnt ]->la_attr.bv_val,
+                                       0, 0 );
+#endif
+                               rc = LDAP_INSUFFICIENT_ACCESS;
+                               goto done;
+                       }
+
+                       /* Apply modification */
+                       mod_tmp = ( Modifications * )ch_malloc( sizeof( Modifications )
+                               + 2 * sizeof ( struct berval ) );
+                       mod_tmp->sml_desc = desc;
+                       mod_tmp->sml_bvalues = ( BerVarray )(mod_tmp+1);
+                       mod_tmp->sml_bvalues[ 0 ] 
+                               = old_rdn[ 0 ][ d_cnt ]->la_value;
+                       mod_tmp->sml_bvalues[ 1 ].bv_val = NULL;
+                       mod_tmp->sml_op = LDAP_MOD_DELETE;
+                       mod_tmp->sml_next = mod;
+                       mod = mod_tmp;
+               }
+       }
+       
+done:
+       /* LDAP v2 supporting correct attribute handling. */
+       if ( rc != LDAP_SUCCESS && mod != NULL ) {
+               Modifications *tmp;
+               for ( ; mod; mod = tmp ) {
+                       tmp = mod->sml_next;
+                       ch_free( mod );
+               }
+       }
+
+       *pmod = mod;
+
+       return rc;
 }