optimize: add numgen expression support

Extend expr_cmp() to compare numgen expressions used in relational.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/src/optimize.c b/src/optimize.c
index 54dde948876f4f57e5e88f1516eb8171783b433f..1fa46cb6a663f0d6affea50b6a0a43918a3c5b58 100644 (file)
--- a/src/optimize.c
+++ b/src/optimize.c
@@ -99,6 +99,14 @@ static bool __expr_cmp(const struct expr *expr_a, const struct expr *expr_b)
                if (expr_a->fib.result != expr_b->fib.result)
                        return false;
                break;
+       case EXPR_NUMGEN:
+               if (expr_a->numgen.type != expr_b->numgen.type)
+                       return false;
+               if (expr_a->numgen.mod != expr_b->numgen.mod)
+                       return false;
+               if (expr_a->numgen.offset != expr_b->numgen.offset)
+                       return false;
+               break;
        case EXPR_BINOP:
                return __expr_cmp(expr_a->left, expr_b->left);
        default: