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