/** * 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; }
char *apol_role_trans_render(const apol_policy_t * policy, const qpol_role_trans_t * rule) { char *tmp = NULL; const char *source_name = NULL, *target_name = NULL, *default_name = NULL; const qpol_role_t *role = NULL; const qpol_type_t *type = NULL; if (!policy || !rule) { ERR(policy, "%s", strerror(EINVAL)); errno = EINVAL; return NULL; } /* source role */ if (qpol_role_trans_get_source_role(policy->p, rule, &role)) { ERR(policy, "%s", strerror(errno)); return NULL; } if (qpol_role_get_name(policy->p, role, &source_name)) { ERR(policy, "%s", strerror(errno)); return NULL; } /* target type */ if (qpol_role_trans_get_target_type(policy->p, rule, &type)) { ERR(policy, "%s", strerror(errno)); return NULL; } if (qpol_type_get_name(policy->p, type, &target_name)) { ERR(policy, "%s", strerror(errno)); return NULL; } /* default role */ if (qpol_role_trans_get_default_role(policy->p, rule, &role)) { ERR(policy, "%s", strerror(errno)); return NULL; } if (qpol_role_get_name(policy->p, role, &default_name)) { ERR(policy, "%s", strerror(errno)); return NULL; } if (asprintf(&tmp, "role_transition %s %s %s;", source_name, target_name, default_name) < 0) { ERR(policy, "%s", strerror(errno)); return NULL; } return tmp; }
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 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; }
apol_context_t *apol_context_create_from_qpol_context(const apol_policy_t * p, const qpol_context_t * context) { apol_context_t *c = NULL; const qpol_user_t *user; const qpol_role_t *role; const qpol_type_t *type; const qpol_mls_range_t *range; const char *user_name, *role_name, *type_name; apol_mls_range_t *apol_range = NULL; if ((c = apol_context_create()) == NULL) { ERR(p, "%s", strerror(ENOMEM)); goto err; } if (qpol_context_get_user(p->p, context, &user) < 0 || qpol_context_get_role(p->p, context, &role) < 0 || qpol_context_get_type(p->p, context, &type) < 0 || qpol_context_get_range(p->p, context, &range) < 0) { goto err; } if (qpol_user_get_name(p->p, user, &user_name) < 0 || qpol_role_get_name(p->p, role, &role_name) < 0 || qpol_type_get_name(p->p, type, &type_name) < 0) { goto err; } if (qpol_policy_has_capability(p->p, QPOL_CAP_MLS)) { /* if the policy is MLS then convert the range, else * rely upon the default value of NULL */ if ((apol_range = apol_mls_range_create_from_qpol_mls_range(p, range)) == NULL) { goto err; } } if (apol_context_set_user(p, c, user_name) < 0 || apol_context_set_role(p, c, role_name) < 0 || apol_context_set_type(p, c, type_name) < 0 || apol_context_set_range(p, c, apol_range) < 0) { goto err; } return c; err: apol_mls_range_destroy(&apol_range); apol_context_destroy(&c); return NULL; }
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; }
/** * 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; }
char *apol_filename_trans_render(const apol_policy_t * policy, const qpol_filename_trans_t * filename_trans) { char *tmp = NULL; const char *tmp_name = NULL; int error = 0; size_t tmp_sz = 0; const qpol_type_t *type = NULL; const qpol_class_t *obj_class = NULL; if (!policy || !filename_trans) { ERR(policy, "%s", strerror(EINVAL)); errno = EINVAL; return NULL; } /* source type */ if (qpol_filename_trans_get_source_type(policy->p, filename_trans, &type)) { error = errno; goto err; } if (qpol_type_get_name(policy->p, type, &tmp_name)) { error = errno; goto err; } if (apol_str_appendf(&tmp, &tmp_sz, "type_transition %s ", tmp_name)) { error = errno; ERR(policy, "%s", strerror(error)); goto err; } /* target type */ if (qpol_filename_trans_get_target_type(policy->p, filename_trans, &type)) { error = errno; goto err; } if (qpol_type_get_name(policy->p, type, &tmp_name)) { error = errno; goto err; } if (apol_str_appendf(&tmp, &tmp_sz, "%s : ", tmp_name)) { error = errno; ERR(policy, "%s", strerror(error)); goto err; } /* object class */ if (qpol_filename_trans_get_object_class(policy->p, filename_trans, &obj_class)) { error = errno; goto err; } if (qpol_class_get_name(policy->p, obj_class, &tmp_name)) { error = errno; goto err; } if (apol_str_appendf(&tmp, &tmp_sz, "%s ", tmp_name)) { error = errno; ERR(policy, "%s", strerror(error)); goto err; } /* default type */ if (qpol_filename_trans_get_default_type(policy->p, filename_trans, &type)) { error = errno; goto err; } if (qpol_type_get_name(policy->p, type, &tmp_name)) { error = errno; goto err; } if (apol_str_appendf(&tmp, &tmp_sz, "%s", tmp_name)) { error = errno; ERR(policy, "%s", strerror(error)); goto err; } /* filename */ if (qpol_filename_trans_get_filename(policy->p, filename_trans, &tmp_name)) { error = errno; goto err; } if (apol_str_appendf(&tmp, &tmp_sz, " \"%s\";", tmp_name)) { error = errno; ERR(policy, "%s", strerror(error)); goto err; } return tmp; err: free(tmp); errno = error; return NULL; }