netdev - Re: [PATCH nf-next 2/6] netfilter: nf_tables: Reject tables of unsupported family

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Date:   Tue, 15 Mar 2022 11:56:44 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Pablo Neira Ayuso <pablo@...filter.org>, Phil Sutter <phil@....cc>
Cc:     netfilter-devel@...r.kernel.org, davem@...emloft.net,
        netdev@...r.kernel.org
Subject: Re: [PATCH nf-next 2/6] netfilter: nf_tables: Reject tables of
 unsupported family

On Tue, 15 Mar 2022 10:15:09 +0100 Pablo Neira Ayuso wrote:
> +	return false
> +#ifdef CONFIG_NF_TABLES_INET
> +		|| family == NFPROTO_INET
> +#endif
> +#ifdef CONFIG_NF_TABLES_IPV4
> +		|| family == NFPROTO_IPV4
> +#endif
> +#ifdef CONFIG_NF_TABLES_ARP
> +		|| family == NFPROTO_ARP
> +#endif
> +#ifdef CONFIG_NF_TABLES_NETDEV
> +		|| family == NFPROTO_NETDEV
> +#endif
> +#if IS_ENABLED(CONFIG_NF_TABLES_BRIDGE)

is there a reason this one is IS_ENABLED() and everything else is ifdef?

> +		|| family == NFPROTO_BRIDGE
> +#endif
> +#ifdef CONFIG_NF_TABLES_IPV6
> +		|| family == NFPROTO_IPV6
> +#endif
> +		;

	return (IS_ENABLED(CONFIG_NF_TABLES_INET) && family == NFPROTO_INET)) ||
	       (IS_ENABLED(CONFIG_NF_TABLES_IPV4) && family == NFPROTO_IPV4)) ||
		...

would have also been an option, for future reference.