/**
* 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;
}
/**
* 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;
}
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;
}
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;
}
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;
}
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;
}
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;
}
/**
* 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;
}
/**
* 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;
}
/**
* 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;
}