When disabling optionals, the AST needs to be reset only if one
of the optional blocks being disabled contains a declaration.
Call the function cil_tree_subtree_has_decl() for each optional
block being disabled and only reset the AST if one of them has
a declaration in it.
Signed-off-by: James Carter <jwcart2@xxxxxxxxx>
---
libsepol/cil/src/cil_resolve_ast.c | 58 +++++++++++++++++-------------
1 file changed, 34 insertions(+), 24 deletions(-)
diff --git a/libsepol/cil/src/cil_resolve_ast.c b/libsepol/cil/src/cil_resolve_ast.c
index 5245cc15..0ea5b169 100644
--- a/libsepol/cil/src/cil_resolve_ast.c
+++ b/libsepol/cil/src/cil_resolve_ast.c
@@ -4230,33 +4230,43 @@ int cil_resolve_ast(struct cil_db *db, struct cil_tree_node *current)
if (changed) {
struct cil_list_item *item;
if (pass > CIL_PASS_CALL1) {
- /* Need to re-resolve because an optional was disabled that contained
- * one or more declarations. We only need to reset to the call1 pass
- * because things done in the preceding passes aren't allowed in
- * optionals, and thus can't be disabled.
- * Note: set pass to CIL_PASS_CALL1 because the pass++ will increment
- * it to CIL_PASS_CALL2
- */
- cil_log(CIL_INFO, "Resetting declarations\n");
-
- if (pass >= CIL_PASS_MISC1) {
- __cil_ordered_lists_reset(&extra_args.sidorder_lists);
- __cil_ordered_lists_reset(&extra_args.classorder_lists);
- __cil_ordered_lists_reset(&extra_args.unordered_classorder_lists);
- __cil_ordered_lists_reset(&extra_args.catorder_lists);
- __cil_ordered_lists_reset(&extra_args.sensitivityorder_lists);
- cil_list_destroy(&db->sidorder, CIL_FALSE);
- cil_list_destroy(&db->classorder, CIL_FALSE);
- cil_list_destroy(&db->catorder, CIL_FALSE);
- cil_list_destroy(&db->sensitivityorder, CIL_FALSE);
+ int has_decls = CIL_FALSE;
+
+ cil_list_for_each(item, extra_args.to_destroy) {
+ has_decls = cil_tree_subtree_has_decl(item->data);
+ if (has_decls) {
+ break;
+ }
}
- pass = CIL_PASS_CALL1;
+ if (has_decls) {
+ /* Need to re-resolve because an optional was disabled that
+ * contained one or more declarations.
+ * Everything that needs to be reset comes after the
+ * CIL_PASS_CALL2 pass. We set pass to CIL_PASS_CALL1 because
+ * the pass++ will increment it to CIL_PASS_CALL2
+ */
+ cil_log(CIL_INFO, "Resetting declarations\n");
+
+ if (pass >= CIL_PASS_MISC1) {
+ __cil_ordered_lists_reset(&extra_args.sidorder_lists);
+ __cil_ordered_lists_reset(&extra_args.classorder_lists);
+ __cil_ordered_lists_reset(&extra_args.unordered_classorder_lists);
+ __cil_ordered_lists_reset(&extra_args.catorder_lists);
+ __cil_ordered_lists_reset(&extra_args.sensitivityorder_lists);
+ cil_list_destroy(&db->sidorder, CIL_FALSE);
+ cil_list_destroy(&db->classorder, CIL_FALSE);
+ cil_list_destroy(&db->catorder, CIL_FALSE);
+ cil_list_destroy(&db->sensitivityorder, CIL_FALSE);
+ }
- rc = cil_reset_ast(current);
- if (rc != SEPOL_OK) {
- cil_log(CIL_ERR, "Failed to reset declarations\n");
- goto exit;
+ pass = CIL_PASS_CALL1;
+
+ rc = cil_reset_ast(current);
+ if (rc != SEPOL_OK) {
+ cil_log(CIL_ERR, "Failed to reset declarations\n");
+ goto exit;
+ }
}
}
cil_list_for_each(item, extra_args.to_destroy) {
--
2.26.3
