/* $OpenLDAP$ */
-/*
- * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2005 The OpenLDAP Foundation.
+ * 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 the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
*/
-/*
- * Copyright (c) 1995 Regents of the University of Michigan.
+/* Portions Copyright (c) 1995 Regents of the University of Michigan.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
#include "portable.h"
#include <stdio.h>
-
#include <ac/socket.h>
+#include <ac/string.h>
-#include "ldap_pvt.h"
#include "slap.h"
+#ifdef LDAP_SLAPI
+#include "slapi/slapi.h"
+#endif
+
+static int compare_entry(
+ Operation *op,
+ Entry *e,
+ AttributeAssertion *ava );
int
do_compare(
- Connection *conn,
- Operation *op
-)
+ Operation *op,
+ SlapReply *rs )
{
- char *dn = NULL, *ndn=NULL;
- struct berval desc;
- struct berval value;
- Backend *be;
- int rc = LDAP_SUCCESS;
- char *text = NULL;
-#ifdef SLAPD_SCHEMA_NOT_COMPAT
- AttributeAssertion ava;
- ava.aa_desc = NULL;
-#else
- Ava ava;
-#endif
+ struct berval dn = BER_BVNULL;
+ struct berval desc = BER_BVNULL;
+ struct berval value = BER_BVNULL;
+ AttributeAssertion ava = { NULL, BER_BVNULL };
- desc.bv_val = NULL;
- value.bv_val = NULL;
+ ava.aa_desc = NULL;
Debug( LDAP_DEBUG_TRACE, "do_compare\n", 0, 0, 0 );
-
/*
* Parse the compare request. It looks like this:
*
* }
*/
- if ( ber_scanf( op->o_ber, "{a" /*}*/, &dn ) == LBER_ERROR ) {
+ if ( ber_scanf( op->o_ber, "{m" /*}*/, &dn ) == LBER_ERROR ) {
Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
- send_ldap_disconnect( conn, op,
- LDAP_PROTOCOL_ERROR, "decoding error" );
+ send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
return SLAPD_DISCONNECT;
}
- if ( ber_scanf( op->o_ber, "{oo}", &desc, &value ) == LBER_ERROR ) {
+ if ( ber_scanf( op->o_ber, "{mm}", &desc, &value ) == LBER_ERROR ) {
Debug( LDAP_DEBUG_ANY, "do_compare: get ava failed\n", 0, 0, 0 );
- send_ldap_disconnect( conn, op,
- LDAP_PROTOCOL_ERROR, "decoding error" );
- rc = SLAPD_DISCONNECT;
- goto cleanup;
+ send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
+ return SLAPD_DISCONNECT;
}
if ( ber_scanf( op->o_ber, /*{*/ "}" ) == LBER_ERROR ) {
Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
- send_ldap_disconnect( conn, op,
- LDAP_PROTOCOL_ERROR, "decoding error" );
- rc = SLAPD_DISCONNECT;
- goto cleanup;
+ send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
+ return SLAPD_DISCONNECT;
}
- if( ( rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
+ if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "do_compare: get_ctrls failed\n", 0, 0, 0 );
goto cleanup;
}
- ndn = ch_strdup( dn );
+ rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn,
+ op->o_tmpmemctx );
+ if( rs->sr_err != LDAP_SUCCESS ) {
+ Debug( LDAP_DEBUG_ANY,
+ "do_compare: invalid dn (%s)\n", dn.bv_val, 0, 0 );
+ send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
+ goto cleanup;
+ }
- if( dn_normalize( ndn ) == NULL ) {
- Debug( LDAP_DEBUG_ANY, "do_compare: invalid dn (%s)\n", dn, 0, 0 );
- send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
- "invalid DN", NULL, NULL );
+ rs->sr_err = slap_bv2ad( &desc, &ava.aa_desc, &rs->sr_text );
+ if( rs->sr_err != LDAP_SUCCESS ) {
+ send_ldap_result( op, rs );
goto cleanup;
}
-#ifdef SLAPD_SCHEMA_NOT_COMPAT
- ava.aa_desc = NULL;
- rc = slap_bv2ad( &desc, &ava.aa_desc, &text );
- if( rc != LDAP_SUCCESS ) {
- send_ldap_result( conn, op, rc, NULL,
- text, NULL, NULL );
+ rs->sr_err = asserted_value_validate_normalize( ava.aa_desc,
+ ava.aa_desc->ad_type->sat_equality,
+ SLAP_MR_EQUALITY|SLAP_MR_VALUE_OF_ASSERTION_SYNTAX,
+ &value, &ava.aa_value, &rs->sr_text, op->o_tmpmemctx );
+ if( rs->sr_err != LDAP_SUCCESS ) {
+ send_ldap_result( op, rs );
goto cleanup;
}
- ava.aa_value = &value;
- Debug( LDAP_DEBUG_ARGS, "do_compare: dn (%s) attr (%s) value (%s)\n",
- dn, ava.aa_desc->ad_cname, ava.aa_value->bv_val );
+ op->orc_ava = &ava;
- Statslog( LDAP_DEBUG_STATS, "conn=%ld op=%d CMP dn=\"%s\" attr=\"%s\"\n",
- op->o_connid, op->o_opid, dn, ava.aa_desc->ad_cname, 0 );
+ op->o_bd = frontendDB;
+ rs->sr_err = frontendDB->be_compare( op, rs );
-#else
- ava.ava_type = desc.bv_val;
- ava.ava_value = value;
- attr_normalize( ava.ava_type );
- value_normalize( ava.ava_value.bv_val, attr_syntax( ava.ava_type ) );
+cleanup:;
+ op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
+ op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
+ if ( ava.aa_value.bv_val ) {
+ op->o_tmpfree( ava.aa_value.bv_val, op->o_tmpmemctx );
+ }
- Debug( LDAP_DEBUG_ARGS, "do_compare: dn (%s) attr (%s) value (%s)\n",
- dn, ava.ava_type, ava.ava_value.bv_val );
+ return rs->sr_err;
+}
- Statslog( LDAP_DEBUG_STATS, "conn=%ld op=%d CMP dn=\"%s\" attr=\"%s\"\n",
- op->o_connid, op->o_opid, dn, ava.ava_type, 0 );
-#endif
+int
+fe_op_compare( Operation *op, SlapReply *rs )
+{
+ Entry *entry = NULL;
+ int manageDSAit;
+ AttributeAssertion ava = *op->orc_ava;
+
+ if( strcasecmp( op->o_req_ndn.bv_val, LDAP_ROOT_DSE ) == 0 ) {
+ Debug( LDAP_DEBUG_ARGS,
+ "do_compare: dn (%s) attr (%s) value (%s)\n",
+ op->o_req_dn.bv_val,
+ ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
+
+ Statslog( LDAP_DEBUG_STATS,
+ "%s CMP dn=\"%s\" attr=\"%s\"\n",
+ op->o_log_prefix, op->o_req_dn.bv_val,
+ ava.aa_desc->ad_cname.bv_val, 0, 0 );
+
+ if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
+ send_ldap_result( op, rs );
+ goto cleanup;
+ }
+
+ rs->sr_err = root_dse_info( op->o_conn, &entry, &rs->sr_text );
+ if( rs->sr_err != LDAP_SUCCESS ) {
+ send_ldap_result( op, rs );
+ goto cleanup;
+ }
+
+ } else if ( bvmatch( &op->o_req_ndn, &frontendDB->be_schemandn ) ) {
+ Debug( LDAP_DEBUG_ARGS, "do_compare: dn (%s) attr (%s) value (%s)\n",
+ op->o_req_dn.bv_val,
+ ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
+
+ Statslog( LDAP_DEBUG_STATS,
+ "%s CMP dn=\"%s\" attr=\"%s\"\n",
+ op->o_log_prefix, op->o_req_dn.bv_val,
+ ava.aa_desc->ad_cname.bv_val, 0, 0 );
+
+ if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
+ send_ldap_result( op, rs );
+ rs->sr_err = 0;
+ goto cleanup;
+ }
+
+ rs->sr_err = schema_info( &entry, &rs->sr_text );
+ if( rs->sr_err != LDAP_SUCCESS ) {
+ send_ldap_result( op, rs );
+ rs->sr_err = 0;
+ goto cleanup;
+ }
+ }
+
+ if( entry ) {
+ rs->sr_err = compare_entry( op, entry, &ava );
+ entry_free( entry );
+
+ send_ldap_result( op, rs );
+
+ if( rs->sr_err == LDAP_COMPARE_TRUE ||
+ rs->sr_err == LDAP_COMPARE_FALSE )
+ {
+ rs->sr_err = LDAP_SUCCESS;
+ }
+
+ goto cleanup;
+ }
+ 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 )) == NULL ) {
- send_ldap_result( conn, op, rc = LDAP_REFERRAL,
- NULL, NULL, default_referral, NULL );
- rc = 1;
+ op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 0 );
+ if ( op->o_bd == NULL ) {
+ rs->sr_ref = referral_rewrite( default_referral,
+ NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
+
+ rs->sr_err = LDAP_REFERRAL;
+ if (!rs->sr_ref) rs->sr_ref = default_referral;
+ op->o_bd = frontendDB;
+ send_ldap_result( op, rs );
+ op->o_bd = NULL;
+
+ if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref );
+ rs->sr_err = 0;
goto cleanup;
}
- /* make sure this backend recongizes critical controls */
- rc = backend_check_controls( be, conn, op, &text ) ;
+ /* check restrictions */
+ if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
+ send_ldap_result( op, rs );
+ goto cleanup;
+ }
- if( rc != LDAP_SUCCESS ) {
- send_ldap_result( conn, op, rc,
- NULL, text, NULL, NULL );
+ /* check for referrals */
+ if( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
goto cleanup;
}
- /* deref suffix alias if appropriate */
- ndn = suffix_alias( be, ndn );
+ Debug( LDAP_DEBUG_ARGS, "do_compare: dn (%s) attr (%s) value (%s)\n",
+ op->o_req_dn.bv_val,
+ ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
+
+ Statslog( LDAP_DEBUG_STATS, "%s CMP dn=\"%s\" attr=\"%s\"\n",
+ op->o_log_prefix, op->o_req_dn.bv_val,
+ ava.aa_desc->ad_cname.bv_val, 0, 0 );
+
+#if defined( LDAP_SLAPI )
+#define pb op->o_pb
+ if ( pb ) {
+ slapi_int_pblock_set_operation( pb, op );
+ slapi_pblock_set( pb, SLAPI_COMPARE_TARGET, (void *)op->o_req_dn.bv_val );
+ slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)manageDSAit );
+ slapi_pblock_set( pb, SLAPI_COMPARE_TYPE, (void *)ava.aa_desc->ad_cname.bv_val );
+ slapi_pblock_set( pb, SLAPI_COMPARE_VALUE, (void *)&ava.aa_value );
+
+ rs->sr_err = slapi_int_call_plugins( op->o_bd,
+ SLAPI_PLUGIN_PRE_COMPARE_FN, pb );
+ if ( rs->sr_err < 0 ) {
+ /*
+ * A preoperation plugin failure will abort the
+ * entire operation.
+ */
+ Debug(LDAP_DEBUG_TRACE,
+ "do_compare: compare preoperation plugin failed\n",
+ 0, 0, 0);
+ if ( ( slapi_pblock_get( op->o_pb, SLAPI_RESULT_CODE,
+ (void *)&rs->sr_err ) != 0 ) || rs->sr_err == LDAP_SUCCESS )
+ {
+ rs->sr_err = LDAP_OTHER;
+ }
+ goto cleanup;
+ }
+ }
+#endif /* defined( LDAP_SLAPI ) */
+
+ op->orc_ava = &ava;
+ if ( ava.aa_desc == slap_schema.si_ad_entryDN ) {
+ send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
+ "entryDN compare not supported" );
+
+ } else if ( ava.aa_desc == slap_schema.si_ad_subschemaSubentry ) {
+ send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
+ "subschemaSubentry compare not supported" );
+
+#ifndef SLAP_COMPARE_IN_FRONTEND
+ } else if ( ava.aa_desc == slap_schema.si_ad_hasSubordinates
+ && op->o_bd->be_has_subordinates )
+ {
+ int rc, hasSubordinates = LDAP_SUCCESS;
+
+ rc = be_entry_get_rw( op, &op->o_req_ndn, NULL, NULL, 0, &entry );
+ if ( rc == 0 && entry ) {
+ if ( ! access_allowed( op, entry,
+ ava.aa_desc, &ava.aa_value, ACL_COMPARE, NULL ) )
+ {
+ rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
+
+ } else {
+ rc = rs->sr_err = op->o_bd->be_has_subordinates( op,
+ entry, &hasSubordinates );
+ be_entry_release_r( op, entry );
+ }
+ }
+
+ if ( rc == 0 ) {
+ int asserted;
+
+ asserted = bvmatch( &ava.aa_value, &slap_true_bv )
+ ? LDAP_COMPARE_TRUE : LDAP_COMPARE_FALSE;
+ if ( hasSubordinates == asserted ) {
+ rs->sr_err = LDAP_COMPARE_TRUE;
+
+ } else {
+ rs->sr_err = LDAP_COMPARE_FALSE;
+ }
+
+ } else {
+#ifdef SLAP_ACL_HONOR_DISCLOSE
+ /* return error only if "disclose"
+ * is granted on the object */
+ if ( backend_access( op, NULL, &op->o_req_ndn,
+ slap_schema.si_ad_entry,
+ NULL, ACL_DISCLOSE, NULL ) == LDAP_INSUFFICIENT_ACCESS )
+ {
+ rs->sr_err = LDAP_NO_SUCH_OBJECT;
+ }
+#endif /* SLAP_ACL_HONOR_DISCLOSE */
+ }
+
+ send_ldap_result( op, rs );
+
+ if ( rc == 0 ) {
+ rs->sr_err = LDAP_SUCCESS;
+ }
- if ( be->be_compare ) {
- (*be->be_compare)( be, conn, op, dn, ndn, &ava );
+ } else if ( op->o_bd->be_compare ) {
+ rs->sr_err = op->o_bd->be_compare( op, rs );
+
+#endif /* ! SLAP_COMPARE_IN_FRONTEND */
} else {
- send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
- NULL, "compare function not implemented", NULL, NULL );
+ rs->sr_err = SLAP_CB_CONTINUE;
+ }
+
+ if ( rs->sr_err == SLAP_CB_CONTINUE ) {
+ /* do our best to compare that AVA
+ *
+ * NOTE: this code is used only
+ * if SLAP_COMPARE_IN_FRONTEND
+ * is #define'd (it's not by default)
+ * or if op->o_bd->be_compare is NULL.
+ *
+ * FIXME: one potential issue is that
+ * if SLAP_COMPARE_IN_FRONTEND overlays
+ * are not executed for compare. */
+ BerVarray vals = NULL;
+ int rc = LDAP_OTHER;
+
+ rs->sr_err = backend_attribute( op, NULL, &op->o_req_ndn,
+ ava.aa_desc, &vals, ACL_COMPARE );
+ switch ( rs->sr_err ) {
+ default:
+#ifdef SLAP_ACL_HONOR_DISCLOSE
+ /* return error only if "disclose"
+ * is granted on the object */
+ if ( backend_access( op, NULL, &op->o_req_ndn,
+ slap_schema.si_ad_entry,
+ NULL, ACL_DISCLOSE, NULL )
+ == LDAP_INSUFFICIENT_ACCESS )
+ {
+ rs->sr_err = LDAP_NO_SUCH_OBJECT;
+ }
+#endif /* SLAP_ACL_HONOR_DISCLOSE */
+ break;
+
+ case LDAP_SUCCESS:
+ if ( value_find_ex( op->oq_compare.rs_ava->aa_desc,
+ SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
+ SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
+ vals, &ava.aa_value, op->o_tmpmemctx ) == 0 )
+ {
+ rs->sr_err = LDAP_COMPARE_TRUE;
+ break;
+
+ } else {
+ rs->sr_err = LDAP_COMPARE_FALSE;
+ }
+ rc = LDAP_SUCCESS;
+ break;
+ }
+
+ send_ldap_result( op, rs );
+
+ if ( rc == 0 ) {
+ rs->sr_err = LDAP_SUCCESS;
+ }
+
+ if ( vals ) {
+ ber_bvarray_free_x( vals, op->o_tmpmemctx );
+ }
}
-cleanup:
- free( dn );
- free( ndn );
- free( desc.bv_val );
- free( value.bv_val );
-#ifdef SLAPD_SCHEMA_NOT_COMPAT
- if( ava.aa_desc != NULL ) {
- ad_free( ava.aa_desc, 1 );
+#if defined( LDAP_SLAPI )
+ if ( pb != NULL && slapi_int_call_plugins( op->o_bd,
+ SLAPI_PLUGIN_POST_COMPARE_FN, pb ) < 0 )
+ {
+ Debug(LDAP_DEBUG_TRACE,
+ "do_compare: compare postoperation plugins failed\n", 0, 0, 0 );
+ }
+#endif /* defined( LDAP_SLAPI ) */
+
+cleanup:;
+ return rs->sr_err;
+}
+
+static int compare_entry(
+ Operation *op,
+ Entry *e,
+ AttributeAssertion *ava )
+{
+ int rc;
+ Attribute *a;
+
+ if ( ! access_allowed( op, e,
+ ava->aa_desc, &ava->aa_value, ACL_COMPARE, NULL ) )
+ {
+ return LDAP_INSUFFICIENT_ACCESS;
+ }
+
+ a = attrs_find( e->e_attrs, ava->aa_desc );
+ if( a == NULL ) return LDAP_NO_SUCH_ATTRIBUTE;
+
+ rc = LDAP_COMPARE_FALSE;
+ for(a = attrs_find( e->e_attrs, ava->aa_desc );
+ a != NULL;
+ a = attrs_find( a->a_next, ava->aa_desc ))
+ {
+ if (( ava->aa_desc != a->a_desc ) && ! access_allowed( op,
+ e, a->a_desc, &ava->aa_value, ACL_COMPARE, NULL ) )
+ {
+ rc = LDAP_INSUFFICIENT_ACCESS;
+ break;
+ }
+
+ if ( value_find_ex( ava->aa_desc,
+ SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
+ SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
+ a->a_nvals,
+ &ava->aa_value, op->o_tmpmemctx ) == 0 )
+ {
+ rc = LDAP_COMPARE_TRUE;
+ break;
+ }
}
-#endif
return rc;
}
projects / openldap / blobdiff