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/** BEGIN COPYRIGHT BLOCK
* This Program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation; version 2 of the License.
*
* This Program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* this Program; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place, Suite 330, Boston, MA 02111-1307 USA.
*
* In addition, as a special exception, Red Hat, Inc. gives You the additional
* right to link the code of this Program with code not covered under the GNU
* General Public License ("Non-GPL Code") and to distribute linked combinations
* including the two, subject to the limitations in this paragraph. Non-GPL Code
* permitted under this exception must only link to the code of this Program
* through those well defined interfaces identified in the file named EXCEPTION
* found in the source code files (the "Approved Interfaces"). The files of
* Non-GPL Code may instantiate templates or use macros or inline functions from
* the Approved Interfaces without causing the resulting work to be covered by
* the GNU General Public License. Only Red Hat, Inc. may make changes or
* additions to the list of Approved Interfaces. You must obey the GNU General
* Public License in all respects for all of the Program code and other code used
* in conjunction with the Program except the Non-GPL Code covered by this
* exception. If you modify this file, you may extend this exception to your
* version of the file, but you are not obligated to do so. If you do not wish to
* provide this exception without modification, you must delete this exception
* statement from your version and license this file solely under the GPL without
* exception.
*
*
* Copyright (C) 2001 Sun Microsystems, Inc. Used by permission.
* Copyright (C) 2005 Red Hat, Inc.
* All rights reserved.
* END COPYRIGHT BLOCK **/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <netsite.h>
#include <libaccess/las.h>
#include <libaccess/acl.h>
#include <libaccess/aclerror.h>
#include <libaccess/dbtlibaccess.h>
#include "aclpriv.h"
NSAPI_PUBLIC int ACL_ModuleRegister (NSErr_t *errp, const char *module_name,
AclModuleInitFunc func)
{
int rv;
if (!module_name || !*module_name) {
nserrGenerate(errp, ACLERRFAIL, ACLERR4200, ACL_Program, 1,
XP_GetAdminStr(DBT_ModuleRegisterModuleNameMissing));
return -1;
}
rv = (*func)(errp);
if (rv < 0) {
nserrGenerate(errp, ACLERRFAIL, ACLERR4210, ACL_Program, 2,
XP_GetAdminStr(DBT_ModuleRegisterFailed), module_name);
return rv;
}
return 0;
}
static int attr_getter_is_matching(NSErr_t *errp, ACLAttrGetter_t *getter,
ACLMethod_t method, ACLDbType_t dbtype)
{
if ((ACL_MethodIsEqual(errp, getter->method, method) ||
ACL_MethodIsEqual(errp, getter->method, ACL_METHOD_ANY)) &&
(ACL_DbTypeIsEqual(errp, getter->dbtype, dbtype) ||
ACL_DbTypeIsEqual(errp, getter->dbtype, ACL_DBTYPE_ANY)))
{
return 1;
}
else {
return 0;
}
}
NSAPI_PUBLIC int ACL_GetAttribute(NSErr_t *errp, const char *attr, void **val,
PList_t subject, PList_t resource,
PList_t auth_info, PList_t global_auth)
{
int rv;
void *attrval;
ACLAttrGetterFn_t func;
ACLAttrGetterList_t getters;
ACLAttrGetter_t *getter;
ACLMethod_t method;
ACLDbType_t dbtype;
/* If subject PList is NULL, we will fail anyway */
if (!subject) return LAS_EVAL_FAIL;
/* Is the attribute already present in the subject property list? */
rv = PListFindValue(subject, attr, &attrval, NULL);
if (rv >= 0) {
/* Yes, take it from there */
*val = attrval;
return LAS_EVAL_TRUE;
}
/* Get the authentication method and database type */
rv = ACL_AuthInfoGetMethod(errp, auth_info, &method);
if (rv < 0) {
nserrGenerate(errp, ACLERRFAIL, ACLERR4300, ACL_Program, 2,
XP_GetAdminStr(DBT_GetAttributeCouldntDetermineMethod), attr);
return LAS_EVAL_FAIL;
}
rv = ACL_AuthInfoGetDbType (errp, auth_info, &dbtype);
if (rv < 0) {
nserrGenerate(errp, ACLERRFAIL, ACLERR4380, ACL_Program, 2,
XP_GetAdminStr(DBT_ReadDbMapFileCouldntDetermineDbtype), attr);
return LAS_EVAL_FAIL;
}
/* Get the list of attribute getters */
rv = ACL_AttrGetterFind(errp, attr, &getters);
if ((rv < 0) || (getters == 0)) {
nserrGenerate(errp, ACLERRFAIL, ACLERR4310, ACL_Program, 2,
XP_GetAdminStr(DBT_GetAttributeCouldntLocateGetter), attr);
return LAS_EVAL_FAIL;
}
/* Iterate over each getter and see if it should be called
* Call each matching getter until a getter which doesn't decline is
* found.
*/
for (getter = ACL_AttrGetterFirst(&getters);
getter != 0;
getter = ACL_AttrGetterNext(&getters, getter)) {
/* Require matching method and database type */
if (attr_getter_is_matching(errp, getter, method, dbtype)) {
/* Call the getter function */
func = getter->fn;
rv = (*func)(errp, subject, resource, auth_info, global_auth,
getter->arg);
/* Did the getter succeed? */
if (rv == LAS_EVAL_TRUE) {
/*
* Yes, it should leave the attribute on the subject
* property list.
*/
rv = PListFindValue(subject, attr, (void **)&attrval, NULL);
if (rv < 0) {
nserrGenerate(errp, ACLERRFAIL, ACLERR4320, ACL_Program, 2,
XP_GetAdminStr(DBT_GetAttributeDidntSetAttr), attr);
return LAS_EVAL_FAIL;
}
/* Got it */
*val = attrval;
return LAS_EVAL_TRUE;
}
/* Did the getter decline? */
if (rv != LAS_EVAL_DECLINE) {
/* No, did it fail to get the attribute */
if (rv == LAS_EVAL_FAIL || rv == LAS_EVAL_INVALID) {
nserrGenerate(errp, ACLERRFAIL, ACLERR4330, ACL_Program, 2,
XP_GetAdminStr(DBT_GetAttributeDidntGetAttr), attr);
}
return rv;
}
}
}
/* If we fall out of the loop, all the getters declined */
nserrGenerate(errp, ACLERRFAIL, ACLERR4340, ACL_Program, 2,
XP_GetAdminStr(DBT_GetAttributeAllGettersDeclined), attr);
return LAS_EVAL_FAIL;
}
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