/**
* @file
* Command line tool to search TE rules.
*
* @author Frank Mayer mayerf@tresys.com
* @author Jeremy A. Mowery jmowery@tresys.com
* @author Paul Rosenfeld prosenfeld@tresys.com
* @author Thomas Liu <tliu@redhat.com>
* @author Dan Walsh <dwalsh@redhat.com>
*
* Copyright (C) 2003-2008 Tresys Technology, LLC
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* This is a modified version of seinfo to be used as part of a library for
* Python bindings.
*/
#include "common.h"
#include "policy.h"
/* libapol */
#include <apol/policy-query.h>
#include <apol/render.h>
#include <apol/util.h>
#include <apol/vector.h>
/* libqpol */
#include <qpol/policy.h>
#include <qpol/util.h>
/* other */
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#define COPYRIGHT_INFO "Copyright (C) 2003-2007 Tresys Technology, LLC"
enum input
{
TYPE, ATTRIBUTE, ROLE, USER, PORT, BOOLEAN, CLASS, SENS, CATS
};
static int py_insert_long(PyObject *dict, const char *name, int value)
{
int rt;
PyObject *obj = PyLong_FromLong(value);
if (!obj) return -1;
rt = PyDict_SetItemString(dict, name, obj);
Py_DECREF(obj);
return rt;
}
static int py_insert_bool(PyObject *dict, const char *name, int value)
{
int rt;
PyObject *obj = PyBool_FromLong(value);
if (!obj) return -1;
rt = PyDict_SetItemString(dict, name, obj);
Py_DECREF(obj);
return rt;
}
/**
* Get a policy's MLS sensitivities.
* If this function is given a name, it will attempt to
* get statistics about a particular sensitivity; otherwise
* the function gets statistics about all of the policy's
* sensitivities.
*
* @param name Reference to a sensitivity's name; if NULL,
* all sensitivities will be considered
* @param policydb Reference to a policy
*
* @return 0 on success, < 0 on error.
*/
static PyObject* get_sens(const char *name, const apol_policy_t * policydb)
{
PyObject *dict = NULL;
int error = 0;
int rt = 0;
size_t i;
char *tmp = NULL;
const char *lvl_name = NULL;
apol_level_query_t *query = NULL;
apol_vector_t *v = NULL;
const qpol_level_t *level = NULL;
apol_mls_level_t *ap_mls_lvl = NULL;
qpol_policy_t *q = apol_policy_get_qpol(policydb);
query = apol_level_query_create();
if (!query)
goto cleanup;
if (apol_level_query_set_sens(policydb, query, name))
goto cleanup;
if (apol_level_get_by_query(policydb, query, &v))
goto cleanup;
dict = PyDict_New();
if (!dict) goto err;
for (i = 0; i < apol_vector_get_size(v); i++) {
level = apol_vector_get_element(v, i);
if (qpol_level_get_name(q, level, &lvl_name))
goto err;
ap_mls_lvl = (apol_mls_level_t *) apol_mls_level_create_from_qpol_level_datum(policydb, level);
tmp = apol_mls_level_render(policydb, ap_mls_lvl);
apol_mls_level_destroy(&ap_mls_lvl);
if (!tmp)
goto cleanup;
if (py_insert_string(dict, lvl_name, tmp))
goto err;
free(tmp); tmp = NULL;
if (rt) goto err;
}
if (name && !apol_vector_get_size(v)) {
goto cleanup;
}
goto cleanup;
err:
error = errno;
PyErr_SetString(PyExc_RuntimeError,strerror(error));
py_decref(dict); dict = NULL;
cleanup:
free(tmp);
apol_level_query_destroy(&query);
apol_vector_destroy(&v);
errno = error;
return dict;
}
/**
* Compare two qpol_cat_datum_t objects.
* This function is meant to be passed to apol_vector_compare
* as the callback for performing comparisons.
*
* @param datum1 Reference to a qpol_type_datum_t object
* @param datum2 Reference to a qpol_type_datum_t object
* @param data Reference to a policy
* @return Greater than 0 if the first argument is less than the second argument,
* less than 0 if the first argument is greater than the second argument,
* 0 if the arguments are equal
*/
static int qpol_cat_datum_compare(const void *datum1, const void *datum2, void *data)
{
const qpol_cat_t *cat_datum1 = NULL, *cat_datum2 = NULL;
apol_policy_t *policydb = NULL;
qpol_policy_t *q;
uint32_t val1, val2;
policydb = (apol_policy_t *) data;
q = apol_policy_get_qpol(policydb);
assert(policydb);
if (!datum1 || !datum2)
goto exit_err;
cat_datum1 = datum1;
cat_datum2 = datum2;
if (qpol_cat_get_value(q, cat_datum1, &val1))
goto exit_err;
if (qpol_cat_get_value(q, cat_datum2, &val2))
goto exit_err;
return (val1 > val2) ? 1 : ((val1 == val2) ? 0 : -1);
exit_err:
assert(0);
return 0;
}
/**
* Compare two qpol_level_datum_t objects.
* This function is meant to be passed to apol_vector_compare
* as the callback for performing comparisons.
*
* @param datum1 Reference to a qpol_level_datum_t object
* @param datum2 Reference to a qpol_level_datum_t object
* @param data Reference to a policy
* @return Greater than 0 if the first argument is less than the second argument,
* less than 0 if the first argument is greater than the second argument,
* 0 if the arguments are equal
*/
static int qpol_level_datum_compare(const void *datum1, const void *datum2, void *data)
{
const qpol_level_t *lvl_datum1 = NULL, *lvl_datum2 = NULL;
apol_policy_t *policydb = NULL;
qpol_policy_t *q;
uint32_t val1, val2;
policydb = (apol_policy_t *) data;
assert(policydb);
q = apol_policy_get_qpol(policydb);
if (!datum1 || !datum2)
goto exit_err;
lvl_datum1 = datum1;
lvl_datum2 = datum2;
if (qpol_level_get_value(q, lvl_datum1, &val1))
goto exit_err;
if (qpol_level_get_value(q, lvl_datum2, &val2))
goto exit_err;
return (val1 > val2) ? 1 : ((val1 == val2) ? 0 : -1);
exit_err:
assert(0);
return 0;
}
/**
* Gets a textual representation of a MLS category and
* all of that category's sensitivies.
*
* @param type_datum Reference to sepol type_datum
* @param policydb Reference to a policy
*/
static PyObject* get_cat_sens(const qpol_cat_t * cat_datum, const apol_policy_t * policydb)
{
const char *cat_name, *lvl_name;
apol_level_query_t *query = NULL;
apol_vector_t *v = NULL;
const qpol_level_t *lvl_datum = NULL;
qpol_policy_t *q = apol_policy_get_qpol(policydb);
size_t i, n_sens = 0;
int error = 0;
PyObject *list = NULL;
PyObject *dict = PyDict_New();
if (!dict) goto err;
if (!cat_datum || !policydb)
goto err;
/* get category name for apol query */
if (qpol_cat_get_name(q, cat_datum, &cat_name))
goto cleanup;
query = apol_level_query_create();
if (!query)
goto err;
if (apol_level_query_set_cat(policydb, query, cat_name))
goto err;
if (apol_level_get_by_query(policydb, query, &v))
goto err;
apol_vector_sort(v, &qpol_level_datum_compare, (void *)policydb);
dict = PyDict_New();
if (!dict) goto err;
if (py_insert_string(dict, "name", cat_name))
goto err;
n_sens = apol_vector_get_size(v);
list = PyList_New(0);
if (!list) goto err;
for (i = 0; i < n_sens; i++) {
lvl_datum = (qpol_level_t *) apol_vector_get_element(v, i);
if (!lvl_datum)
goto err;
if (qpol_level_get_name(q, lvl_datum, &lvl_name))
goto err;
if (py_append_string(list, lvl_name))
goto err;
}
if (py_insert_obj(dict, "level", list))
goto err;
Py_DECREF(list);
goto cleanup;
err:
error = errno;
PyErr_SetString(PyExc_RuntimeError,strerror(errno));
py_decref(list); list = NULL;
py_decref(dict); dict = NULL;
cleanup:
apol_level_query_destroy(&query);
apol_vector_destroy(&v);
errno = error;
return dict;
}
/**
* Prints statistics regarding a policy's MLS categories.
* If this function is given a name, it will attempt to
* get statistics about a particular category; otherwise
* the function gets statistics about all of the policy's
* categories.
*
* @param name Reference to a MLS category's name; if NULL,
* all categories will be considered
* @param policydb Reference to a policy
*
* @return 0 on success, < 0 on error.
*/
static PyObject* get_cats(const char *name, const apol_policy_t * policydb)
{
PyObject *obj = NULL;
apol_cat_query_t *query = NULL;
apol_vector_t *v = NULL;
const qpol_cat_t *cat_datum = NULL;
size_t i, n_cats;
int error = 0;
int rt;
PyObject *list = PyList_New(0);
if (!list) goto err;
query = apol_cat_query_create();
if (!query)
goto err;
if (apol_cat_query_set_cat(policydb, query, name))
goto err;
if (apol_cat_get_by_query(policydb, query, &v))
goto err;
n_cats = apol_vector_get_size(v);
apol_vector_sort(v, &qpol_cat_datum_compare, (void *)policydb);
for (i = 0; i < n_cats; i++) {
cat_datum = apol_vector_get_element(v, i);
if (!cat_datum)
goto err;
obj = get_cat_sens(cat_datum, policydb);
if (!obj)
goto err;
rt = py_append_obj(list, obj);
Py_DECREF(obj);
if (rt) goto err;
}
if (name && !n_cats) {
goto err;
}
goto cleanup;
err:
error = errno;
PyErr_SetString(PyExc_RuntimeError,strerror(errno));
py_decref(list); list = NULL;
cleanup:
apol_cat_query_destroy(&query);
apol_vector_destroy(&v);
errno = error;
return list;
}
/**
* Get the alias of a type.
*
* @param type_datum Reference to sepol type_datum
* @param policydb Reference to a policy
* attributes
*/
static PyObject* get_type_aliases(const qpol_type_t * type_datum, const apol_policy_t * policydb)
{
qpol_iterator_t *iter = NULL;
size_t alias_size;
unsigned char isattr, isalias;
const char *type_name = NULL;
const char *alias_name;
int error = 0;
qpol_policy_t *q = apol_policy_get_qpol(policydb);
PyObject *list = PyList_New(0);
if (!list) goto err;
if (qpol_type_get_name(q, type_datum, &type_name))
goto cleanup;
if (qpol_type_get_isattr(q, type_datum, &isattr))
goto cleanup;
if (qpol_type_get_isalias(q, type_datum, &isalias))
goto cleanup;
if (qpol_type_get_alias_iter(q, type_datum, &iter))
goto cleanup;
if (qpol_iterator_get_size(iter, &alias_size))
goto cleanup;
if (alias_size > 0) {
for (; !qpol_iterator_end(iter); qpol_iterator_next(iter)) {
if (qpol_iterator_get_item(iter, (void **)&alias_name))
goto err;
if (py_append_string(list, alias_name))
goto err;
}
}
goto cleanup;
err:
error = errno;
PyErr_SetString(PyExc_RuntimeError,strerror(errno));
py_decref(list); list = NULL;
cleanup:
qpol_iterator_destroy(&iter);
errno = error;
return list;
}
/**
* Gets a textual representation of an attribute, and
* all of that attribute's types.
*
* @param type_datum Reference to sepol type_datum
* @param policydb Reference to a policy
*/
static PyObject* get_attr(const qpol_type_t * type_datum, const apol_policy_t * policydb)
{
PyObject *list = NULL;
const qpol_type_t *attr_datum = NULL;
qpol_iterator_t *iter = NULL;
const char *attr_name = NULL, *type_name = NULL;
qpol_policy_t *q = apol_policy_get_qpol(policydb);
unsigned char isattr;
int error = 0;
int rt = 0;
PyObject *dict = PyDict_New();
if (!dict) goto err;
if (qpol_type_get_name(q, type_datum, &attr_name))
goto err;
if (py_insert_string(dict, "name", attr_name))
goto err;
/* get an iterator over all types this attribute has */
if (qpol_type_get_isattr(q, type_datum, &isattr))
goto err;
if (isattr) { /* sanity check */
if (qpol_type_get_type_iter(q, type_datum, &iter))
goto err;
list = PyList_New(0);
if (!list) goto err;
for (; !qpol_iterator_end(iter); qpol_iterator_next(iter)) {
if (qpol_iterator_get_item(iter, (void **)&attr_datum))
goto err;
if (qpol_type_get_name(q, attr_datum, &type_name))
goto err;
if (py_append_string(list, type_name))
goto err;
}
qpol_iterator_destroy(&iter);
rt = PyDict_SetItemString(dict, "types", list);
Py_DECREF(list); list = NULL;
if (rt) goto err;
} else /* this should never happen */
goto err;
goto cleanup;
err:
error = errno;
PyErr_SetString(PyExc_RuntimeError,strerror(errno));
py_decref(dict); dict = NULL;
py_decref(list);
cleanup:
qpol_iterator_destroy(&iter);
errno = error;
return dict;
}
/**
* Gets statistics regarding a policy's attributes.
* If this function is given a name, it will attempt to
* get statistics about a particular attribute; otherwise
* the function gets statistics about all of the policy's
* attributes.
*
* @param name Reference to an attribute's name; if NULL,
* all object classes will be considered
* @param policydb Reference to a policy
*
* @return 0 on success, < 0 on error.
*/
static PyObject* get_attribs(const char *name, const apol_policy_t * policydb)
{
PyObject *obj;
apol_attr_query_t *attr_query = NULL;
apol_vector_t *v = NULL;
const qpol_type_t *type_datum = NULL;
size_t n_attrs, i;
int error = 0;
int rt = 0;
PyObject *list = PyList_New(0);
if (!list) goto err;
/* we are only getting information about 1 attribute */
if (name != NULL) {
attr_query = apol_attr_query_create();
if (!attr_query)
goto err;
if (apol_attr_query_set_attr(policydb, attr_query, name))
goto err;
if (apol_attr_get_by_query(policydb, attr_query, &v))
goto err;
apol_attr_query_destroy(&attr_query);
if (apol_vector_get_size(v) == 0) {
apol_vector_destroy(&v);
errno = EINVAL;
goto err;
}
type_datum = apol_vector_get_element(v, (size_t) 0);
obj = get_attr(type_datum, policydb);
rt = py_append_obj(list, obj);
Py_DECREF(obj);
if (rt) goto err;
} else {
attr_query = apol_attr_query_create();
if (!attr_query)
goto err;
if (apol_attr_get_by_query(policydb, attr_query, &v))
goto err;
apol_attr_query_destroy(&attr_query);
n_attrs = apol_vector_get_size(v);
for (i = 0; i < n_attrs; i++) {
/* get qpol_type_t* item from vector */
type_datum = (qpol_type_t *) apol_vector_get_element(v, (size_t) i);
if (!type_datum)
goto err;
obj = get_attr(type_datum, policydb);
rt = py_append_obj(list, obj);
Py_DECREF(obj);
if (rt) goto err;
}
}
apol_vector_destroy(&v);
goto cleanup;
err:
error = errno;
PyErr_SetString(PyExc_RuntimeError,strerror(errno));
py_decref(list); list = NULL;
cleanup:
apol_attr_query_destroy(&attr_query);
apol_vector_destroy(&v);
errno = error;
return list;
}
/**
* Get a textual representation of a type, and
* all of that type's attributes.
*
* @param type_datum Reference to sepol type_datum
* @param policydb Reference to a policy
*/
static PyObject* get_type_attrs(const qpol_type_t * type_datum, const apol_policy_t * policydb)
{
qpol_iterator_t *iter = NULL;
const char *attr_name = NULL;
const qpol_type_t *attr_datum = NULL;
qpol_policy_t *q = apol_policy_get_qpol(policydb);
int error = 0;
PyObject *list = PyList_New(0);
if (!list) goto err;
if (qpol_type_get_attr_iter(q, type_datum, &iter))
goto err;
for (; !qpol_iterator_end(iter); qpol_iterator_next(iter)) {
if (qpol_iterator_get_item(iter, (void **)&attr_datum))
goto err;
if (qpol_type_get_name(q, attr_datum, &attr_name))
goto err;
if (py_append_string(list, attr_name))
goto err;
}
goto cleanup;
err:
error = errno;
PyErr_SetString(PyExc_RuntimeError,strerror(errno));
py_decref(list); list = NULL;
cleanup:
qpol_iterator_destroy(&iter);
errno = error;
return list;
}
static PyObject* get_type(const qpol_type_t * type_datum, const apol_policy_t * policydb) {
PyObject *obj;
qpol_policy_t *q = apol_policy_get_qpol(policydb);
const char *type_name = NULL;
int error = 0;
int rt;
unsigned char isalias, ispermissive, isattr;
PyObject *dict = PyDict_New();
if (!dict) goto err;
if (qpol_type_get_name(q, type_datum, &type_name))
goto err;
if (qpol_type_get_isalias(q, type_datum, &isalias))
goto err;
if (qpol_type_get_isattr(q, type_datum, &isattr))
goto err;
if (qpol_type_get_ispermissive(q, type_datum, &ispermissive))
goto err;
if (py_insert_string(dict, "name", type_name))
goto err;
if (py_insert_bool(dict, "permissive", ispermissive))
goto err;
if (!isattr && !isalias) {
obj = get_type_attrs(type_datum, policydb);
rt = py_insert_obj(dict, "attributes", obj);
Py_DECREF(obj);
if (rt) goto err;
}
obj = get_type_aliases(type_datum, policydb);
rt = py_insert_obj(dict, "aliases", obj);
Py_DECREF(obj);
if (rt) goto err;
goto cleanup;
err:
error = errno;
PyErr_SetString(PyExc_RuntimeError,strerror(error));
py_decref(dict); dict = NULL;
cleanup:
errno = error;
return dict;
}
/**
* Gets statistics regarding a policy's booleans.
* If this function is given a name, it will attempt to
* get statistics about a particular boolean; otherwise
* the function gets statistics about all of the policy's booleans.
*
* @param name Reference to a boolean's name; if NULL,
* all booleans will be considered
* @param policydb Reference to a policy
*
* @return new reference, or NULL (setting an exception)
*/
static PyObject* get_booleans(const char *name, const apol_policy_t * policydb)
{
PyObject *dict = NULL;
int error = 0;
int rt = 0;
const char *bool_name = NULL;
int state;
qpol_bool_t *bool_datum = NULL;
qpol_iterator_t *iter = NULL;
qpol_policy_t *q = apol_policy_get_qpol(policydb);
size_t n_bools = 0;
PyObject *list = PyList_New(0);
if (!list) goto err;
if (name != NULL) {
if (qpol_policy_get_bool_by_name(q, name, &bool_datum))
goto err;
if (qpol_bool_get_state(q, bool_datum, &state))
goto err;
dict = PyDict_New();
if (!dict) goto err;
if (py_insert_string(dict, "name", name))
goto err;
if (py_insert_bool(dict, "name", state))
goto err;
rt = py_append_obj(list, dict);
Py_DECREF(dict); dict = NULL;
if (rt) goto err;
} else {
if (qpol_policy_get_bool_iter(q, &iter))
goto err;
if (qpol_iterator_get_size(iter, &n_bools))
goto err;
for (; !qpol_iterator_end(iter); qpol_iterator_next(iter)) {
if (qpol_iterator_get_item(iter, (void **)&bool_datum))
goto err;
if (qpol_bool_get_name(q, bool_datum, &bool_name))
goto err;
if (qpol_bool_get_state(q, bool_datum, &state))
goto err;
dict = PyDict_New();
if (!dict) goto err;
if (py_insert_string(dict, "name", bool_name))
goto err;
if (py_insert_bool(dict, "state", state))
goto err;
rt = py_append_obj(list, dict);
Py_DECREF(dict); dict = NULL;
if (rt) goto err;
}
qpol_iterator_destroy(&iter);
}
goto cleanup;
err:
error = errno;
PyErr_SetString(PyExc_RuntimeError,strerror(error));
py_decref(list); list = NULL;
py_decref(dict); dict = NULL;
cleanup:
qpol_iterator_destroy(&iter);
errno = error;
return list;
}
/**
* Gets a textual representation of a user, and
* all of that user's roles.
*
* @param type_datum Reference to sepol type_datum
* @param policydb Reference to a policy
* roles
*/
static PyObject* get_user(const qpol_user_t * user_datum, const apol_policy_t * policydb)
{
int error = 0;
int rt;
const qpol_role_t *role_datum = NULL;
qpol_iterator_t *iter = NULL;
const qpol_mls_range_t *range = NULL;
const qpol_mls_level_t *dflt_level = NULL;
apol_mls_level_t *ap_lvl = NULL;
apol_mls_range_t *ap_range = NULL;
qpol_policy_t *q = apol_policy_get_qpol(policydb);
char *tmp = NULL;
const char *user_name, *role_name;
PyObject *dict = NULL;
PyObject *list = PyList_New(0);
if (!list) goto err;
if (qpol_user_get_name(q, user_datum, &user_name))
goto err;
dict = PyDict_New();
if (!dict) goto err;
if (py_insert_string(dict, "name", user_name))
goto err;
if (qpol_policy_has_capability(q, QPOL_CAP_MLS)) {
if (qpol_user_get_dfltlevel(q, user_datum, &dflt_level))
goto err;
ap_lvl = apol_mls_level_create_from_qpol_mls_level(policydb, dflt_level);
tmp = apol_mls_level_render(policydb, ap_lvl);
if (!tmp) goto err;
if (py_insert_string(dict, "level", tmp))
goto err;
free(tmp); tmp = NULL;
if (qpol_user_get_range(q, user_datum, &range))
goto err;
ap_range = apol_mls_range_create_from_qpol_mls_range(policydb, range);
tmp = apol_mls_range_render(policydb, ap_range);
if (!tmp) goto err;
if (py_insert_string(dict, "range", tmp))
goto err;
free(tmp); tmp=NULL;
}
if (qpol_user_get_role_iter(q, user_datum, &iter))
goto err;
for (; !qpol_iterator_end(iter); qpol_iterator_next(iter)) {
if (qpol_iterator_get_item(iter, (void **)&role_datum))
goto err;
if (qpol_role_get_name(q, role_datum, &role_name))
goto err;
if (py_append_string(list, role_name))
goto err;
}
rt = py_insert_obj(dict, "roles", list);
Py_DECREF(list); list=NULL;
if (rt) goto err;
goto cleanup;
err:
error = errno;
PyErr_SetString(PyExc_RuntimeError,strerror(errno));
py_decref(list); list=NULL;
py_decref(dict); dict=NULL;
cleanup:
free(tmp);
qpol_iterator_destroy(&iter);
apol_mls_level_destroy(&ap_lvl);
apol_mls_range_destroy(&ap_range);
errno = error;
return dict;
}
/**
* Prints a textual representation of an object class and possibly
* all of that object class' permissions.
*
* @param type_datum Reference to sepol type_datum
* @param policydb Reference to a policy
*/
static PyObject* get_class(const qpol_class_t * class_datum, const apol_policy_t * policydb)
{
const char *class_name = NULL, *perm_name = NULL;
qpol_iterator_t *iter = NULL;
const qpol_common_t *common_datum = NULL;
qpol_policy_t *q = apol_policy_get_qpol(policydb);
int error = 0;
int rt;
PyObject *list = NULL;
PyObject *dict = PyDict_New();
if (!dict) goto err;
if (!class_datum)
goto err;
if (qpol_class_get_name(q, class_datum, &class_name))
goto err;
if (py_insert_string(dict, "name", class_name))
goto err;
/* get commons for this class */
if (qpol_class_get_common(q, class_datum, &common_datum))
goto err;
list = PyList_New(0);
if (!list) goto err;
if (common_datum) {
if (qpol_common_get_perm_iter(q, common_datum, &iter))
goto err;
/* print perms for the common */
for (; !qpol_iterator_end(iter); qpol_iterator_next(iter)) {
if (qpol_iterator_get_item(iter, (void **)&perm_name))
goto err;
if (py_append_string(list, perm_name))
goto err;
}
}
/* print unique perms for this class */
if (qpol_class_get_perm_iter(q, class_datum, &iter))
goto err;
for (; !qpol_iterator_end(iter); qpol_iterator_next(iter)) {
if (qpol_iterator_get_item(iter, (void **)&perm_name))
goto err;
if (py_append_string(list, perm_name))
goto err;
}
rt = py_insert_obj(dict, "permlist", list);
Py_DECREF(list); list = NULL;
if (rt) goto err;
qpol_iterator_destroy(&iter);
goto cleanup;
err:
error = errno;
PyErr_SetString(PyExc_RuntimeError,strerror(errno));
py_decref(list); list=NULL;
py_decref(dict); dict=NULL;
cleanup:
errno = error;
qpol_iterator_destroy(&iter);
return dict;
}
/**
* Get statistics regarding a policy's object classes.
* If this function is given a name, it will attempt to
* print statistics about a particular object class; otherwise
* the function prints statistics about all of the policy's object
* classes.
*
* @param name Reference to an object class' name; if NULL,
* all object classes will be considered
* @param policydb Reference to a policy
*
* @return 0 on success, < 0 on error.
*/
static PyObject* get_classes(const char *name, const apol_policy_t * policydb)
{
qpol_iterator_t *iter = NULL;
size_t n_classes = 0;
const qpol_class_t *class_datum = NULL;
qpol_policy_t *q = apol_policy_get_qpol(policydb);
int error = 0;
int rt;
PyObject *obj;
PyObject *list = PyList_New(0);
if (!list) goto err;
if (name != NULL) {
if (qpol_policy_get_class_by_name(q, name, &class_datum))
goto err;
obj = get_class(class_datum, policydb);
rt = py_append_obj(list, obj);
Py_DECREF(obj);
if (rt) goto err;
} else {
if (qpol_policy_get_class_iter(q, &iter))
goto err;
if (qpol_iterator_get_size(iter, &n_classes))
goto err;
for (; !qpol_iterator_end(iter); qpol_iterator_next(iter)) {
if (qpol_iterator_get_item(iter, (void **)&class_datum))
goto err;
obj = get_class(class_datum, policydb);
rt = py_append_obj(list, obj);
Py_DECREF(obj);
if (rt) goto err;
}
qpol_iterator_destroy(&iter);
}
goto cleanup;
err:
error = errno;
PyErr_SetString(PyExc_RuntimeError,strerror(errno));
py_decref(list); list = NULL;
cleanup:
qpol_iterator_destroy(&iter);
errno = error;
return list;
}
/**
* Gets statistics regarding a policy's users.
* If this function is given a name, it will attempt to
* get statistics about a particular user; otherwise
* the function gets statistics about all of the policy's
* users.
*
* @param name Reference to a user's name; if NULL,
* all users will be considered
* @param policydb Reference to a policy
*
* @return 0 on success, < 0 on error.
*/
static PyObject* get_users(const char *name, const apol_policy_t * policydb)
{
qpol_iterator_t *iter = NULL;
const qpol_user_t *user_datum = NULL;
qpol_policy_t *q = apol_policy_get_qpol(policydb);
int error = 0;
int rt;
PyObject *obj;
PyObject *list = PyList_New(0);
if (!list) goto err;
if (name != NULL) {
if (qpol_policy_get_user_by_name(q, name, &user_datum)) {
errno = EINVAL;
goto err;
}
obj = get_user(user_datum, policydb);
rt = py_append_obj(list, obj);
Py_DECREF(obj);
if (rt) goto err;
} else {
if (qpol_policy_get_user_iter(q, &iter))
goto err;
for (; !qpol_iterator_end(iter); qpol_iterator_next(iter)) {
if (qpol_iterator_get_item(iter, (void **)&user_datum))
goto err;
obj = get_user(user_datum, policydb);
rt = py_append_obj(list, obj);
Py_DECREF(obj);
if (rt) goto err;
}
qpol_iterator_destroy(&iter);
}
goto cleanup;
err:
error = errno;
PyErr_SetString(PyExc_RuntimeError,strerror(errno));
py_decref(list); list = NULL;
cleanup:
qpol_iterator_destroy(&iter);
errno = error;
return list;
}
/**
* get a textual representation of a role, and
* all of that role's types.
*
* @param type_datum Reference to sepol type_datum
* @param policydb Reference to a policy
* types
*/
static PyObject* get_role(const qpol_role_t * role_datum, const apol_policy_t * policydb)
{
const char *role_name = NULL, *type_name = NULL;
const qpol_role_t *dom_datum = NULL;
const qpol_type_t *type_datum = NULL;
qpol_iterator_t *iter = NULL;
qpol_policy_t *q = apol_policy_get_qpol(policydb);
size_t n_dom = 0, n_types = 0;
int error = 0;
int rt;
PyObject *list = NULL;
PyObject *dict = PyDict_New();
if (!dict) goto err;
if (qpol_role_get_name(q, role_datum, &role_name))
goto err;
if (py_insert_string(dict, "name", role_name))
goto err;
if (qpol_role_get_dominate_iter(q, role_datum, &iter))
goto err;
if (qpol_iterator_get_size(iter, &n_dom))
goto err;
if ((int)n_dom > 0) {
list = PyList_New(0);
if (!list) goto err;
for (; !qpol_iterator_end(iter); qpol_iterator_next(iter)) {
if (qpol_iterator_get_item(iter, (void **)&dom_datum))
goto err;
if (qpol_role_get_name(q, dom_datum, &role_name))
goto err;
if (py_append_string(list, role_name))
goto err;
}
rt = py_insert_obj(dict, "roles", list);
Py_DECREF(list); list = NULL;
if (rt) goto err;
}
qpol_iterator_destroy(&iter);
if (qpol_role_get_type_iter(q, role_datum, &iter))
goto err;
if (qpol_iterator_get_size(iter, &n_types))
goto err;
if ((int)n_types > 0) {
list = PyList_New(0);
if (!list) goto err;
for (; !qpol_iterator_end(iter); qpol_iterator_next(iter)) {
if (qpol_iterator_get_item(iter, (void **)&type_datum))
goto err;
if (qpol_type_get_name(q, type_datum, &type_name))
goto err;
if (py_append_string(list, type_name))
goto err;
}
rt = py_insert_obj(dict, "types", list);
Py_DECREF(list); list = NULL;
if (rt) goto err;
}
goto cleanup;
err:
error = errno;
PyErr_SetString(PyExc_RuntimeError,strerror(errno));
py_decref(list); list = NULL;
py_decref(dict); dict = NULL;
cleanup:
qpol_iterator_destroy(&iter);
errno = error;
return dict;
}
/**
* Get statistics regarding a policy's ports.
* If this function is given a name, it will attempt to
* get statistics about a particular port; otherwise
* the function get statistics about all of the policy's ports.
*
* @param name Reference to an port's name; if NULL,
* all ports will be considered
* @param policydb Reference to a policy
*
* @return 0 on success, < 0 on error.
*/
static PyObject* get_ports(const char *num, const apol_policy_t * policydb)
{
const qpol_portcon_t *portcon = NULL;
qpol_iterator_t *iter = NULL;
uint16_t low_port, high_port;
uint8_t ocon_proto;
qpol_policy_t *q = apol_policy_get_qpol(policydb);
const qpol_context_t *ctxt = NULL;
const char *proto_str = NULL;
const char *type = NULL;
const apol_mls_range_t *range = NULL;
char *range_str = NULL;
apol_context_t *c = NULL;
int error = 0;
int rt = 0;
PyObject *dict = NULL;
PyObject *list = PyList_New(0);
if (!list) goto err;
if (qpol_policy_get_portcon_iter(q, &iter))
goto err;
for (; !qpol_iterator_end(iter); qpol_iterator_next(iter)) {
if (qpol_iterator_get_item(iter, (void **)&portcon))
goto err;
if (qpol_portcon_get_low_port(q, portcon, &low_port))
goto err;
if (qpol_portcon_get_high_port(q, portcon, &high_port))
goto err;
if (qpol_portcon_get_protocol(q, portcon, &ocon_proto))
goto err;
if (num) {
if (atoi(num) < low_port || atoi(num) > high_port)
continue;
}
if ((ocon_proto != IPPROTO_TCP) &&
(ocon_proto != IPPROTO_UDP))
goto err;
if (qpol_portcon_get_context(q, portcon, &ctxt)) {
PyErr_SetString(PyExc_RuntimeError, "Could not get for port context.");
goto err;
}
if ((proto_str = apol_protocol_to_str(ocon_proto)) == NULL) {
PyErr_SetString(PyExc_RuntimeError, "Invalid protocol for port");
goto err;
}
if ((c = apol_context_create_from_qpol_context(policydb, ctxt)) == NULL) {
goto err;
}
if((type = apol_context_get_type(c)) == NULL) {
apol_context_destroy(&c);
goto err;
}
dict = PyDict_New();
if (!dict) goto err;
if (py_insert_string(dict, "type", type))
goto err;
if((range = apol_context_get_range(c)) != NULL) {
range_str = apol_mls_range_render(policydb, range);
if (range_str == NULL) {
goto err;
}
if (py_insert_string(dict, "range", range_str))
goto err;
}
if (py_insert_string(dict, "protocol", proto_str))
goto err;
if (py_insert_long(dict, "high", high_port))
goto err;
if (py_insert_long(dict, "low", low_port))
goto err;
rt = py_append_obj(list, dict);
Py_DECREF(dict); dict = NULL;
if (rt) goto err;
}
goto cleanup;
err:
error = errno;
PyErr_SetString(PyExc_RuntimeError,strerror(errno));
py_decref(list); list = NULL;
py_decref(dict); dict = NULL;
cleanup:
free(range_str);
apol_context_destroy(&c);
qpol_iterator_destroy(&iter);
errno = error;
return list;
}
/**
* Get statistics regarding a policy's roles.
* If this function is given a name, it will attempt to
* get statistics about a particular role; otherwise
* the function get statistics about all of the policy's roles.
*
* @param name Reference to an role's name; if NULL,
* all roles will be considered
* @param policydb Reference to a policy
*
* @return 0 on success, < 0 on error.
*/
static PyObject* get_roles(const char *name, const apol_policy_t * policydb)
{
const qpol_role_t *role_datum = NULL;
qpol_iterator_t *iter = NULL;
qpol_policy_t *q = apol_policy_get_qpol(policydb);
int error = 0;
int rt;
PyObject *obj;
PyObject *list = PyList_New(0);
if (!list) goto err;
if (name != NULL) {
if (qpol_policy_get_role_by_name(q, name, &role_datum)) {
errno = EINVAL;
goto err;
}
obj = get_role(role_datum, policydb);
rt = py_append_obj(list, obj);
Py_DECREF(obj);
if (rt) goto err;
} else {
if (qpol_policy_get_role_iter(q, &iter))
goto err;
for (; !qpol_iterator_end(iter); qpol_iterator_next(iter)) {
if (qpol_iterator_get_item(iter, (void **)&role_datum))
goto err;
obj = get_role(role_datum, policydb);
rt = py_append_obj(list, obj);
Py_DECREF(obj);
if (rt) goto err;
}
qpol_iterator_destroy(&iter);
}
goto cleanup;
err:
error = errno;
PyErr_SetString(PyExc_RuntimeError,strerror(errno));
py_decref(list); list = NULL;
cleanup:
qpol_iterator_destroy(&iter);
errno = error;
return list;
}
/**
* Get statistics regarding a policy's types.
* If this function is given a name, it will attempt to
* print statistics about a particular type; otherwise
* the function prints statistics about all of the policy's types.
*
* @param name Reference to a type's name; if NULL,
* all object classes will be considered
* @param policydb Reference to a policy
*
* @return 0 on success, < 0 on error.
*/
static PyObject* get_types(const char *name, const apol_policy_t * policydb)
{
const qpol_type_t *type_datum = NULL;
qpol_iterator_t *iter = NULL;
qpol_policy_t *q = apol_policy_get_qpol(policydb);
int error = 0;
int rt;
PyObject *obj;
PyObject *list = PyList_New(0);
if (!list) goto err;
/* if name was provided, only print that name */
if (name != NULL) {
if (qpol_policy_get_type_by_name(q, name, &type_datum)) {
errno = EINVAL;
goto err;
}
obj = get_type(type_datum, policydb);
rt = py_append_obj(list, obj);
Py_DECREF(obj);
if (rt) goto err;
} else {
if (qpol_policy_get_type_iter(q, &iter))
goto err;
for (; !qpol_iterator_end(iter); qpol_iterator_next(iter)) {
if (qpol_iterator_get_item(iter, (void **)&type_datum))
goto err;
obj = get_type(type_datum, policydb);
rt = py_append_obj(list, obj);
Py_DECREF(obj);
if (rt) goto err;
}
}
goto cleanup;
err:
error = errno;
PyErr_SetString(PyExc_RuntimeError,strerror(errno));
py_decref(list); list = NULL;
cleanup:
qpol_iterator_destroy(&iter);
errno = error;
return list;
}
PyObject* info( int type, const char *name)
{
PyObject* output = NULL;
switch(type) {
/* display requested info */
case TYPE:
output = get_types(name, policy);
break;
case ATTRIBUTE:
output = get_attribs(name, policy);
break;
case ROLE:
output = get_roles(name, policy);
break;
case USER:
output = get_users(name, policy);
break;
case CLASS:
output = get_classes(name, policy);
break;
case BOOLEAN:
output = get_booleans(name, policy);
break;
case PORT:
output = get_ports(name, policy);
break;
case SENS:
output = get_sens(name, policy);
break;
case CATS:
output = get_cats(name, policy);
break;
default:
errno = EINVAL;
PyErr_SetString(PyExc_RuntimeError,strerror(errno));
break;
}
return output;
}
PyObject *wrap_info(PyObject *UNUSED(self), PyObject *args){
int type;
const char *name;
if (!policy) {
PyErr_SetString(PyExc_RuntimeError,"Policy not loaded");
return NULL;
}
if (!PyArg_ParseTuple(args, "iz", &type, &name))
return NULL;
return info(type, name);
}
void init_info (PyObject *m) {
PyModule_AddIntConstant(m, "ATTRIBUTE", ATTRIBUTE);
PyModule_AddIntConstant(m, "PORT", PORT);
PyModule_AddIntConstant(m, "ROLE", ROLE);
PyModule_AddIntConstant(m, "TYPE", TYPE);
PyModule_AddIntConstant(m, "USER", USER);
PyModule_AddIntConstant(m, "CLASS", CLASS);
PyModule_AddIntConstant(m, "BOOLEAN", BOOLEAN);
PyModule_AddIntConstant(m, "SENS", SENS);
PyModule_AddIntConstant(m, "CATS", CATS);
}