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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
/* lasuser.c
* This file contains the User LAS code.
*/
#include <netsite.h>
#include <base/shexp.h>
#include <base/util.h>
#include <libaccess/las.h>
#include <libaccess/dbtlibaccess.h>
#include <libaccess/aclerror.h>
#include "aclutil.h"
#ifdef UTEST
extern char * LASUserGetUser();
#endif
/*
* LASUserEval
* INPUT
* attr_name The string "user" - in lower case.
* comparator CMP_OP_EQ or CMP_OP_NE only
* attr_pattern A comma-separated list of users
* *cachable Always set to ACL_NOT_CACHABLE.
* subject Subject property list
* resource Resource property list
* auth_info Authentication info, if any
* RETURNS
* retcode The usual LAS return codes.
*/
int LASUserEval(NSErr_t *errp, char *attr_name, CmpOp_t comparator,
char *attr_pattern, ACLCachable_t *cachable,
void **LAS_cookie, PList_t subject, PList_t resource,
PList_t auth_info, PList_t global_auth)
{
char *uid;
char *users;
char *user;
char *comma;
int retcode;
int matched;
int is_owner;
int rv;
*cachable = ACL_NOT_CACHABLE;
*LAS_cookie = (void *)0;
if (strcmp(attr_name, ACL_ATTR_USER) != 0) {
nserrGenerate(errp, ACLERRINVAL, ACLERR5700, ACL_Program, 2, XP_GetAdminStr(DBT_lasUserEvalReceivedRequestForAtt_), attr_name);
return LAS_EVAL_INVALID;
}
if ((comparator != CMP_OP_EQ) && (comparator != CMP_OP_NE)) {
nserrGenerate(errp, ACLERRINVAL, ACLERR5710, ACL_Program, 2, XP_GetAdminStr(DBT_lasuserevalIllegalComparatorDN_), comparator_string(comparator));
return LAS_EVAL_INVALID;
}
if (!strcmp(attr_pattern, "anyone")) {
*cachable = ACL_INDEF_CACHABLE;
return comparator == CMP_OP_EQ ? LAS_EVAL_TRUE : LAS_EVAL_FALSE;
}
/* get the authenticated user name */
#ifndef UTEST
rv = ACL_GetAttribute(errp, ACL_ATTR_USER, (void **)&uid,
subject, resource, auth_info, global_auth);
if (rv != LAS_EVAL_TRUE) {
return rv;
}
#else
uid = (char *)LASUserGetUser();
#endif
/* We have an authenticated user */
if (!strcmp(attr_pattern, "all")) {
return comparator == CMP_OP_EQ ? LAS_EVAL_TRUE : LAS_EVAL_FALSE;
}
users = STRDUP(attr_pattern);
if (!users) {
nserrGenerate(errp, ACLERRNOMEM, ACLERR5720, ACL_Program, 1,
XP_GetAdminStr(DBT_lasuserevalRanOutOfMemoryN_));
return LAS_EVAL_FAIL;
}
user = users;
matched = 0;
/* check if the uid is one of the users */
while(user != 0 && *user != 0 && !matched) {
if ((comma = strchr(user, ',')) != NULL) {
*comma++ = 0;
}
/* ignore leading whitespace */
while(*user == ' ' || *user == '\t') user++;
if (*user) {
/* ignore trailing whitespace */
int len = strlen(user);
char *ptr = user+len-1;
while(*ptr == ' ' || *ptr == '\t') *ptr-- = 0;
}
if (!strcasecmp(user, ACL_ATTR_OWNER)) {
rv = ACL_GetAttribute(errp, ACL_ATTR_IS_OWNER, (void **)&is_owner,
subject, resource, auth_info, global_auth);
if (rv == LAS_EVAL_TRUE)
matched = 1;
else
/* continue checking for next user */
user = comma;
}
else if (!WILDPAT_CASECMP(uid, user)) {
/* uid is one of the users */
matched = 1;
}
else {
/* continue checking for next user */
user = comma;
}
}
if (comparator == CMP_OP_EQ) {
retcode = (matched ? LAS_EVAL_TRUE : LAS_EVAL_FALSE);
}
else {
retcode = (matched ? LAS_EVAL_FALSE : LAS_EVAL_TRUE);
}
FREE(users);
return retcode;
}
/* LASUserFlush
* Deallocates any memory previously allocated by the LAS
*/
void
LASUserFlush(void **las_cookie)
{
/* do nothing */
return;
}
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