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/**
* @file
* Implementation of the interface for searching and iterating over booleans.
*
* @author Kevin Carr kcarr@tresys.com
* @author Jeremy A. Mowery jmowery@tresys.com
* @author Jason Tang jtang@tresys.com
*
* Copyright (C) 2006-2007 Tresys Technology, LLC
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stddef.h>
#include <stdlib.h>
#include <stdint.h>
#include <qpol/iterator.h>
#include <sepol/policydb.h>
#include <sepol/policydb/policydb.h>
#include <sepol/policydb/expand.h>
#include "iterator_internal.h"
#include <qpol/bool_query.h>
#include "qpol_internal.h"
int qpol_policy_get_bool_by_name(const qpol_policy_t * policy, const char *name, qpol_bool_t ** datum)
{
hashtab_datum_t internal_datum;
policydb_t *db;
if (policy == NULL || name == NULL || datum == NULL) {
if (datum != NULL)
*datum = NULL;
ERR(policy, "%s", strerror(EINVAL));
errno = EINVAL;
return STATUS_ERR;
}
db = &policy->p->p;
internal_datum = hashtab_search(db->p_bools.table, (const hashtab_key_t)name);
if (internal_datum == NULL) {
ERR(policy, "could not find datum for bool %s", name);
*datum = NULL;
errno = ENOENT;
return STATUS_ERR;
}
*datum = (qpol_bool_t *) internal_datum;
return STATUS_SUCCESS;
}
int qpol_policy_get_bool_iter(const qpol_policy_t * policy, qpol_iterator_t ** iter)
{
policydb_t *db;
hash_state_t *hs = NULL;
int error = 0;
if (policy == NULL || iter == NULL) {
if (iter != NULL)
*iter = NULL;
ERR(policy, "%s", strerror(EINVAL));
errno = EINVAL;
return STATUS_ERR;
}
db = &policy->p->p;
hs = calloc(1, sizeof(hash_state_t));
if (hs == NULL) {
error = errno;
ERR(policy, "%s", strerror(ENOMEM));
errno = error;
return STATUS_ERR;
}
hs->table = &db->p_bools.table;
hs->node = (*(hs->table))->htable[0];
if (qpol_iterator_create(policy, (void *)hs, hash_state_get_cur,
hash_state_next, hash_state_end, hash_state_size, free, iter)) {
free(hs);
return STATUS_ERR;
}
if (hs->node == NULL)
hash_state_next(*iter);
return STATUS_SUCCESS;
}
int qpol_bool_get_value(const qpol_policy_t * policy, const qpol_bool_t * datum, uint32_t * value)
{
cond_bool_datum_t *internal_datum;
if (policy == NULL || datum == NULL || value == NULL) {
if (value != NULL)
*value = 0;
ERR(policy, "%s", strerror(EINVAL));
errno = EINVAL;
return STATUS_ERR;
}
internal_datum = (cond_bool_datum_t *) datum;
*value = internal_datum->s.value;
return STATUS_SUCCESS;
}
int qpol_bool_get_state(const qpol_policy_t * policy, const qpol_bool_t * datum, int *state)
{
cond_bool_datum_t *internal_datum;
if (policy == NULL || datum == NULL || state == NULL) {
if (state != NULL)
*state = 0;
ERR(policy, "%s", strerror(EINVAL));
errno = EINVAL;
return STATUS_ERR;
}
internal_datum = (cond_bool_datum_t *) datum;
*state = internal_datum->state;
return STATUS_SUCCESS;
}
int qpol_bool_set_state(qpol_policy_t * policy, qpol_bool_t * datum, int state)
{
cond_bool_datum_t *internal_datum;
if (policy == NULL || datum == NULL) {
ERR(policy, "%s", strerror(EINVAL));
errno = EINVAL;
return STATUS_ERR;
}
internal_datum = (cond_bool_datum_t *) datum;
internal_datum->state = state;
/* re-evaluate conditionals to update the state of their rules */
if (qpol_policy_reevaluate_conds(policy)) {
return STATUS_ERR; /* errno already set */
}
return STATUS_SUCCESS;
}
int qpol_bool_set_state_no_eval(qpol_policy_t * policy, qpol_bool_t * datum, int state)
{
cond_bool_datum_t *internal_datum;
if (policy == NULL || datum == NULL) {
ERR(policy, "%s", strerror(EINVAL));
errno = EINVAL;
return STATUS_ERR;
}
internal_datum = (cond_bool_datum_t *) datum;
internal_datum->state = state;
return STATUS_SUCCESS;
}
int qpol_bool_get_name(const qpol_policy_t * policy, const qpol_bool_t * datum, const char **name)
{
cond_bool_datum_t *internal_datum = NULL;
policydb_t *db = NULL;
if (policy == NULL || datum == NULL || name == NULL) {
if (name != NULL)
*name = NULL;
ERR(policy, "%s", strerror(EINVAL));
errno = EINVAL;
return STATUS_ERR;
}
db = &policy->p->p;
internal_datum = (cond_bool_datum_t *) datum;
*name = db->p_bool_val_to_name[internal_datum->s.value - 1];
return STATUS_SUCCESS;
}
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