Since we need to calculate the length of the entire concat type, we can not support variable sized types where the length can't be determined by the type. This only affects base types since all higher types include a length. Signed-off-by: Patrick McHardy <kaber@xxxxxxxxx> --- src/evaluate.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/src/evaluate.c b/src/evaluate.c index e260a80..d99b38f 100644 --- a/src/evaluate.c +++ b/src/evaluate.c @@ -620,6 +620,13 @@ static int expr_evaluate_concat(struct eval_ctx *ctx, struct expr **expr) "expecting %s", dtype->desc); + if (dtype == NULL && i->dtype->size == 0) + return expr_binary_error(ctx->msgs, i, *expr, + "can not use variable sized " + "data types (%s) in concat " + "expressions", + i->dtype->name); + tmp = concat_subtype_lookup(type, --off); expr_set_context(&ctx->ectx, tmp, tmp->size); -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
