Re: [PATCH nft] netlink: Print value sizes on Relational expression size mismatch

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On Thu, May 31, 2018 at 01:42:17PM +0200, Máté Eckl wrote:
> On Thu, May 31, 2018 at 10:57:49AM +0200, Pablo Neira Ayuso wrote:
> > > I just wanted to make sure that the only accepted values are 0 and 1 and I
> > > didn't find other way to provide this check.
> > 
> > You can reject this from the evaluation phase.
> 
> Oh, earlier I didn't find how to do it, but now I think I did.
> 
> Would you accept a new version of the patch with this?

That looks good.

Please tests if this will that work with maps too? eg.

        socket transparent ip saddr map { 1.1.1.1 : 1,
                                          2.2.2.2 : 0 }

> diff --git a/src/evaluate.c b/src/evaluate.c
> index 56fea26..70d6b23 100644
> --- a/src/evaluate.c
> +++ b/src/evaluate.c
> @@ -1712,9 +1712,11 @@ static int expr_evaluate_meta(struct eval_ctx *ctx, struct expr **exprp)
>         return expr_evaluate_primary(ctx, exprp);
>  }
>  
> -static int expr_evaluate_socket(struct eval_ctx *ctx, struct expr **exprp)
> +static int expr_evaluate_socket(struct eval_ctx *ctx, struct expr **expr)
>  {
> -       return expr_evaluate_primary(ctx, exprp);
> +       __expr_set_context(&ctx->ectx, (*expr)->dtype, (*expr)->byteorder,
> +                          (*expr)->len, 1);
> +       return 0;
>  }
>  
>  static int expr_evaluate_variable(struct eval_ctx *ctx, struct expr **exprp)
> 
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