Exemple #1
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;
}
Exemple #2
0
/**
 * 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;
}
Exemple #3
0
/**
 * 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;
}
Exemple #4
0
/**
 * 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;
}
Exemple #5
0
/**
 * 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;
}
Exemple #6
0
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;
}
Exemple #7
0
/**
 * 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;
}
Exemple #8
0
/**
 * Get the alias of a type.
 *
 * @param fp Reference to a file to which to get type information
 * @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;
}
Exemple #9
0
static PyObject* get_bool(const qpol_policy_t *q, const qpol_cond_t * cond, int enabled)
{
	qpol_iterator_t *iter = NULL;
	qpol_cond_expr_node_t *expr = NULL;
	char *tmp = NULL;
	const char *bool_name = NULL;
	int error = 0;
	uint32_t expr_type = 0;
	qpol_bool_t *cond_bool = NULL;
	PyObject *obj, *tuple = NULL;
	PyObject *boollist = NULL;

	if (!q || !cond) {
		errno = EINVAL;
		return NULL;
	}
	if (qpol_cond_get_expr_node_iter(q, cond, &iter) < 0) {
		goto err;
	}

	boollist = PyList_New(0);
	if (! boollist) goto err;

	for (; !qpol_iterator_end(iter); qpol_iterator_next(iter)) {
		if (qpol_iterator_get_item(iter, (void **)&expr)) {
			goto err;
		}
		if (qpol_cond_expr_node_get_expr_type(q, expr, &expr_type)) {
			goto err;
		}
		if (expr_type != QPOL_COND_EXPR_BOOL) {
			obj = PyUnicode_FromString(apol_cond_expr_type_to_str(expr_type));
			if (!obj) goto err;
			if (py_append_obj(boollist, obj))
				goto err;
		} else {
			tuple = PyTuple_New(2);
			if (!tuple) goto err;

			if (qpol_cond_expr_node_get_bool(q, expr, &cond_bool)) {
				goto err;
			}
			if (qpol_bool_get_name(q, cond_bool, &bool_name)) {
				goto err;
			}
			obj = PyUnicode_FromString(bool_name);
			if (py_tuple_insert_obj(tuple, 0, obj))
				goto err;
			obj = PyBool_FromLong(enabled);
			if (py_tuple_insert_obj(tuple, 1, obj))
				goto err;
			if (py_append_obj(boollist, tuple)) 
				goto err;
			tuple=NULL;
		}
	}

	qpol_iterator_destroy(&iter);
	return boollist;

      err:
	error = errno;
	qpol_iterator_destroy(&iter);
	py_decref(tuple);
	py_decref(boollist);
	free(tmp);
	errno = error;
	return NULL;
}
Exemple #10
0
static PyObject* get_ra_results(const apol_policy_t * policy, const apol_vector_t * v, PyObject *output)
{
	size_t i, num_rules = 0;
	qpol_policy_t *q;
	const qpol_role_allow_t *rule = NULL;
	const char *tmp;
	PyObject *obj, *dict=NULL;
	const qpol_role_t *role = NULL;
	int error = 0;
	errno = EINVAL;
	int rt;

	if (!policy || !v) {
		errno = EINVAL;
		goto err;
	}

	if (!(num_rules = apol_vector_get_size(v)))
		return NULL;

	q = apol_policy_get_qpol(policy);

	for (i = 0; i < num_rules; i++) {
		dict = PyDict_New();
		if (!dict) goto err;
		if (!(rule = apol_vector_get_element(v, i)))
			goto err;

		if (qpol_role_allow_get_source_role(q, rule, &role)) {
			goto err;
		}
		if (qpol_role_get_name(q, role, &tmp)) {
			goto err;
		}
		obj = PyUnicode_FromString(tmp);
		if (py_insert_obj(dict, "source", obj))
			goto err;

		if (qpol_role_allow_get_target_role(q, rule, &role)) {
			goto err;
		}
		if (qpol_role_get_name(q, role, &tmp)) {
			goto err;
		}
		obj = PyUnicode_FromString(tmp);
		if (py_insert_obj(dict, "target", obj))
			goto err;

		rt = py_append_obj(output, dict);
		if (rt) goto err;
		py_decref(dict); dict=NULL;
	}
	goto cleanup;
err:
	error = errno;
	PyErr_SetString(PyExc_RuntimeError,strerror(error));
	py_decref(dict);

cleanup:
	errno = error;
	return output;
}
Exemple #11
0
/**
 * 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;
}
Exemple #12
0
static PyObject* get_av_results(const apol_policy_t * policy, const apol_vector_t * v, PyObject *output)
{
	PyObject *obj, *dict=NULL;
	PyObject *permlist = NULL;
	PyObject *boollist = NULL;
	uint32_t rule_type = 0;
	int rt;
	int error = 0;
	qpol_policy_t *q;
	size_t i, num_rules = 0;
	const qpol_avrule_t *rule = NULL;
	char *tmp = NULL, *rule_str = NULL;
	qpol_cond_expr_node_t *expr = NULL;
	qpol_iterator_t *iter = NULL;
	const qpol_cond_t *cond = NULL;
	uint32_t enabled = 0;
	const qpol_type_t *type;
	const char *tmp_name;
	const qpol_class_t *obj_class = NULL;

	if (!policy || !v) {
		errno = EINVAL;
		goto err;
	}

	if (!(num_rules = apol_vector_get_size(v)))
		return NULL;

	q = apol_policy_get_qpol(policy);

	for (i = 0; i < num_rules; i++) {
		if (!(rule = apol_vector_get_element(v, i)))
			goto err;

		dict = PyDict_New();
		if (!dict) goto err;

		if (qpol_avrule_get_rule_type(q, rule, &rule_type))
			goto err;

		if (!(tmp_name = apol_rule_type_to_str(rule_type))) {
			PyErr_SetString(PyExc_RuntimeError, "Could not get TE rule type's string");
			errno = EINVAL;
			goto err;
		}

		if (py_insert_string(dict, "type", tmp_name))
			goto err;

		if (qpol_avrule_get_source_type(q, rule, &type)) {
			goto err;
		}

		if (qpol_type_get_name(q, type, &tmp_name)) {
			goto err;
		}

		if (py_insert_string(dict, "source", tmp_name))
			goto err;

		if (qpol_avrule_get_target_type(q, rule, &type)) {
			goto err;
		}
		if (qpol_type_get_name(q, type, &tmp_name)) {
			goto err;
		}

		if (py_insert_string(dict, "target", tmp_name))
			goto err;

		if (qpol_avrule_get_object_class(q, rule, &obj_class)) {
			goto err;
		}
		if (qpol_class_get_name(q, obj_class, &tmp_name)) {
			goto err;
		}

		if (py_insert_string(dict, "class", tmp_name))
			goto err;

		if (qpol_avrule_get_perm_iter(q, rule, &iter)) {
			goto err;
		}

		permlist = PyList_New(0);
		if (! permlist) goto err;

		for (; !qpol_iterator_end(iter); qpol_iterator_next(iter)) {
			const char *perm_name = NULL;
			if (qpol_iterator_get_item(iter, (void **)&perm_name))
				goto err;
			if (py_append_string(permlist, perm_name))
				goto err;
		}

		rt = PyDict_SetItemString(dict, "permlist", permlist);
		py_decref(permlist); permlist=NULL;
		if (rt) goto err;

		if (qpol_avrule_get_cond(q, rule, &cond))
			goto err;
		if (qpol_avrule_get_is_enabled(q, rule, &enabled))
			goto err;

		obj = PyBool_FromLong(enabled);
		rt = PyDict_SetItemString(dict, "enabled", obj);
		py_decref(obj);

		if (cond) {
			obj = get_bool(q, cond, enabled);
			if (!obj) goto err;
			rt = PyDict_SetItemString(dict, "boolean", obj);
			py_decref(obj);
		}

		rt = py_append_obj(output, dict);
		py_decref(dict); dict=NULL;
		if (rt) goto err;

		free(rule_str);	rule_str = NULL;
		free(expr); expr = NULL;
	}
	goto cleanup;

err:
	error = errno;
	PyErr_SetString(PyExc_RuntimeError,strerror(errno));
	py_decref(dict);
	py_decref(permlist);
	py_decref(boollist);

cleanup:
	free(tmp);
	free(rule_str);
	free(expr);
	errno = error;
	return output;
}
Exemple #13
0
/**
 * 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;
}
Exemple #14
0
/**
 * 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 fp Reference to a file to which to print statistics
 * @param name Reference to a boolean's name; if NULL,
 * all booleans will be considered
 * @param expand Flag indicating whether to print each
 * boolean's default state
 * @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;
}
Exemple #15
0
/**
 * 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;
}
Exemple #16
0
static PyObject* get_te_results(const apol_policy_t * policy, const apol_vector_t * v, PyObject *output)
{
	int error = 0;
	int rt = 0;
	PyObject *obj, *dict=NULL, *tuple = NULL;
	qpol_policy_t *q;
	uint32_t rule_type = 0;
	const qpol_type_t *type;
	size_t i, num_rules = 0;
	const qpol_terule_t *rule = NULL;
	char *tmp = NULL, *rule_str = NULL, *expr = NULL;
	const qpol_cond_t *cond = NULL;
	uint32_t enabled = 0;
	const char *tmp_name;
	const qpol_class_t *obj_class = NULL;

	if (!policy || !v) {
		errno = EINVAL;
		goto err;
	}

	if (!(num_rules = apol_vector_get_size(v)))
		return NULL;

	q = apol_policy_get_qpol(policy);

	for (i = 0; i < num_rules; i++) {
		dict = PyDict_New();
		if (!dict) goto err;
		if (!(rule = apol_vector_get_element(v, i)))
			goto err;
		if (qpol_terule_get_cond(q, rule, &cond))
			goto err;
		if (qpol_terule_get_is_enabled(q, rule, &enabled))
			goto err;

		if (cond) {
			obj = get_bool(q, cond, enabled);
			if (!obj) goto err;
			rt = PyDict_SetItemString(dict, "boolean", obj);
			py_decref(obj);
		}

		if (qpol_terule_get_rule_type(q, rule, &rule_type))
			goto err;

		if (!(rule_type &= (QPOL_RULE_TYPE_TRANS | QPOL_RULE_TYPE_CHANGE | QPOL_RULE_TYPE_MEMBER))) {
			PyErr_SetString(PyExc_RuntimeError,"Invalid TE rule type");
			errno = EINVAL;
			goto err;
		}
		if (!(tmp_name = apol_rule_type_to_str(rule_type))) {
			PyErr_SetString(PyExc_RuntimeError, "Could not get TE rule type's string");
			errno = EINVAL;
			goto err;
		}

		if (py_insert_string(dict, "type", tmp_name))
			goto err;

		if (qpol_terule_get_source_type(q, rule, &type))
			goto err;
		if (qpol_type_get_name(q, type, &tmp_name))
			goto err;
		if (py_insert_string(dict, "source", tmp_name))
			goto err;

		if (qpol_terule_get_target_type(q, rule, &type))
			goto err;
		if (qpol_type_get_name(q, type, &tmp_name))
			goto err;
		if (py_insert_string(dict, "target", tmp_name))
			goto err;

		if (qpol_terule_get_object_class(q, rule, &obj_class))
			goto err;
		if (qpol_class_get_name(q, obj_class, &tmp_name))
			goto err;
		if (py_insert_string(dict, "class", tmp_name))
			goto err;

		if (qpol_terule_get_default_type(q, rule, &type))
			goto err;
		if (qpol_type_get_name(q, type, &tmp_name))
			goto err;
		if (py_insert_string(dict, "transtype", tmp_name))
			goto err;

		rt = py_append_obj(output, dict);
		dict = NULL;
		if(rt) goto err;

		free(rule_str);	rule_str = NULL;
		free(expr); expr = NULL;
	}
	goto cleanup;

err:
	error = errno;
	py_decref(dict);
	py_decref(tuple);
	PyErr_SetString(PyExc_RuntimeError,strerror(error));
cleanup:
	free(tmp);
	free(rule_str);
	free(expr);
	errno = error;
	return output;
}
Exemple #17
0
static PyObject* get_ft_results(const apol_policy_t * policy, const apol_vector_t * v, PyObject *list)
{
	PyObject *dict = NULL;
	size_t i, num_filename_trans = 0;
	const char *tmp_name;
	int error = 0;
	int rt;
	const qpol_filename_trans_t *filename_trans = NULL;
	const qpol_class_t *obj_class = NULL;
	char *tmp = NULL, *filename_trans_str = NULL, *expr = NULL;
	qpol_policy_t *q;
	const qpol_type_t *type = NULL;

	if (!policy || !v) {
		errno = EINVAL;
		goto err;
	}

	if (!(num_filename_trans = apol_vector_get_size(v)))
		return NULL;

	q = apol_policy_get_qpol(policy);

	for (i = 0; i < num_filename_trans; i++) {
		if (!(filename_trans = apol_vector_get_element(v, i)))
			goto err;

		dict = PyDict_New();
		if (!dict) goto err;

		if (py_insert_string(dict, "type", "type_transition"))
			goto err;

		/* source type */
		if (qpol_filename_trans_get_source_type(q, filename_trans, &type)) {
			goto err;
		}
		if (qpol_type_get_name(q, type, &tmp_name)) {
			goto err;
		}

		if (py_insert_string(dict, "source", tmp_name))
			goto err;

		if (qpol_filename_trans_get_target_type(q, filename_trans, &type))
			goto err;

		if (qpol_type_get_name(q, type, &tmp_name))
			goto err;

		if (py_insert_string(dict, "target", tmp_name))
			goto err;

		if (qpol_filename_trans_get_object_class(q, filename_trans, &obj_class))
			goto err;

		if (qpol_class_get_name(q, obj_class, &tmp_name))
			goto err;

		if (py_insert_string(dict, "class", tmp_name))
			goto err;

		if (qpol_filename_trans_get_default_type(q, filename_trans, &type))
			goto err;
		if (qpol_type_get_name(q, type, &tmp_name))
			goto err;
		if (py_insert_string(dict, "transtype", tmp_name))
			goto err;

		if (! qpol_filename_trans_get_filename(q, filename_trans, &tmp_name)) {
			if (py_insert_string(dict, "filename", tmp_name))
				goto err;
		}

		rt = py_append_obj(list, dict);
		dict = NULL;
		if (rt) goto err;

		free(filename_trans_str); filename_trans_str = NULL;
		free(expr); expr = NULL;
	}
	goto cleanup;

err:
	error = errno;
	PyErr_SetString(PyExc_RuntimeError,strerror(errno));
	py_decref(dict);
cleanup:
	free(tmp);
	free(filename_trans_str);
	free(expr);
	errno = error;
	return list;
}
Exemple #18
0
/**
 * Prints a textual representation of an object class and possibly
 * all of that object class' permissions.
 *
 * @param fp Reference to a file to which to print object class information
 * @param type_datum Reference to sepol type_datum
 * @param policydb Reference to a policy
 * @param expand Flag indicating whether to print each object class'
 * permissions
 */
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;
}
Exemple #19
0
PyObject* search(bool allow,
		 bool neverallow,
		 bool auditallow,
		 bool dontaudit,
		 bool transition,
		 bool role_allow,
		 const char *src_name,
		 const char *tgt_name,
		 const char *class_name,
		 const char *permlist
	)
{
	options_t cmd_opts;
	PyObject *output = NULL;
	apol_vector_t *v = NULL;

	memset(&cmd_opts, 0, sizeof(cmd_opts));
	cmd_opts.indirect = true;
	cmd_opts.show_cond = true;
	cmd_opts.allow = allow;
	cmd_opts.nallow = neverallow;
	cmd_opts.auditallow = auditallow;
	cmd_opts.dontaudit = dontaudit;
	cmd_opts.type = transition;
	cmd_opts.role_allow = role_allow;
	if (src_name)
		cmd_opts.src_name = strdup(src_name);
	if (tgt_name)
		cmd_opts.tgt_name = strdup(tgt_name);
	if (class_name)
		cmd_opts.class_name = strdup(class_name);
	if (permlist){
		cmd_opts.perm_vector = apol_vector_create(free);
		cmd_opts.permlist = strdup(permlist);
	}
	if (!cmd_opts.semantic && qpol_policy_has_capability(apol_policy_get_qpol(policy), QPOL_CAP_SYN_RULES)) {
		if (qpol_policy_build_syn_rule_table(apol_policy_get_qpol(policy))) {
			PyErr_SetString(PyExc_RuntimeError,"Query failed");
			goto cleanup;
		}
	}

	/* if syntactic rules are not available always do semantic search */
	if (!qpol_policy_has_capability(apol_policy_get_qpol(policy), QPOL_CAP_SYN_RULES)) {
		cmd_opts.semantic = 1;
	}

	/* supress line numbers if doing semantic search or not available */
	if (cmd_opts.semantic || !qpol_policy_has_capability(apol_policy_get_qpol(policy), QPOL_CAP_LINE_NUMBERS)) {
		cmd_opts.lineno = 0;
	}
	if (perform_av_query(policy, &cmd_opts, &v)) {
		goto cleanup;
	}
	output = PyList_New(0);
	if (!output)
		goto cleanup;

	if (v) {
		get_av_results(policy, v, output);
	}

	apol_vector_destroy(&v);
	if (perform_te_query(policy, &cmd_opts, &v)) {
		goto cleanup;
	}
	if (v) {
		get_te_results(policy, v, output);
	}

	if (cmd_opts.all || cmd_opts.type) {
		apol_vector_destroy(&v);
		if (perform_ft_query(policy, &cmd_opts, &v)) {
			goto cleanup;
		}

		if (v) {
			get_ft_results(policy, v, output);
		}
	}

	if (cmd_opts.all || cmd_opts.role_allow) {
		apol_vector_destroy(&v);
		if (perform_ra_query(policy, &cmd_opts, &v)) {
			goto cleanup;
		}

		if (v) {
			get_ra_results(policy, v, output);
		}
	}

	apol_vector_destroy(&v);

      cleanup:
	free(cmd_opts.src_name);
	free(cmd_opts.tgt_name);
	free(cmd_opts.class_name);
	free(cmd_opts.permlist);
	free(cmd_opts.bool_name);
	free(cmd_opts.src_role_name);
	free(cmd_opts.tgt_role_name);
	apol_vector_destroy(&cmd_opts.perm_vector);
	apol_vector_destroy(&cmd_opts.class_vector);

	if (output && PyList_GET_SIZE(output) == 0) {
		py_decref(output);
		return Py_None;
	}
	return output;
}
Exemple #20
0
/**
 * 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;
}