Re: [PATCH 3/3] netfilter: {ipt,ebt}_ULOG: rise warning on deprecation

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On 05/23/2013 04:42 PM, Pablo Neira Ayuso wrote:
> This target has been superseded by NFLOG. Spot a warning
> so we prepare removal in a couple of years.
> 
> Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
> ---
>  include/net/netns/x_tables.h    |    6 ++++++
>  net/bridge/netfilter/ebt_ulog.c |    6 ++++++
>  net/ipv4/netfilter/Kconfig      |    2 +-
>  net/ipv4/netfilter/ipt_ULOG.c   |    6 ++++++
>  4 files changed, 19 insertions(+), 1 deletion(-)
> 
> diff --git a/include/net/netns/x_tables.h b/include/net/netns/x_tables.h
> index c24060e..02fe40f 100644
> --- a/include/net/netns/x_tables.h
> +++ b/include/net/netns/x_tables.h
> @@ -15,5 +15,11 @@ struct netns_xt {
>  	struct ebt_table *frame_filter;
>  	struct ebt_table *frame_nat;
>  #endif
> +#if IS_ENABLED(CONFIG_IP_NF_TARGET_ULOG)
> +	bool ulog_warn_deprecated;
> +#endif
> +#if IS_ENABLED(CONFIG_BRIDGE_EBT_ULOG)
> +	bool ebt_ulog_warn_deprecated;
> +#endif
>  };
>  #endif
> diff --git a/net/bridge/netfilter/ebt_ulog.c b/net/bridge/netfilter/ebt_ulog.c
> index fc1905c..bfc40c7 100644
> --- a/net/bridge/netfilter/ebt_ulog.c
> +++ b/net/bridge/netfilter/ebt_ulog.c
> @@ -267,6 +267,12 @@ static int ebt_ulog_tg_check(const struct xt_tgchk_param *par)
>  {
>  	struct ebt_ulog_info *uloginfo = par->targinfo;
>  
> +	if (!par->net->nf.ebt_ulog_warn_deprecated) {

par->net->xt.ebt_ulog_warn_deprecated?

anyway
Acked-by: Gao feng <gaofeng@xxxxxxxxxxxxxx>

> +		pr_info("ebt_ulog is deprecated and it will be removed soon, "
> +			"use ebt_nflog instead\n");
> +		par->net->nf.ebt_ulog_warn_deprecated = true;
> +	}
> +
>  	if (uloginfo->nlgroup > 31)
>  		return -EINVAL;
>  
> diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig
> index e7916c1..4e90280 100644
> --- a/net/ipv4/netfilter/Kconfig
> +++ b/net/ipv4/netfilter/Kconfig
> @@ -111,7 +111,7 @@ config IP_NF_TARGET_REJECT
>  	  To compile it as a module, choose M here.  If unsure, say N.
>  
>  config IP_NF_TARGET_ULOG
> -	tristate "ULOG target support"
> +	tristate "ULOG target support (obsolete)"
>  	default m if NETFILTER_ADVANCED=n
>  	---help---
>  
> diff --git a/net/ipv4/netfilter/ipt_ULOG.c b/net/ipv4/netfilter/ipt_ULOG.c
> index f8a222cb..c1953d0 100644
> --- a/net/ipv4/netfilter/ipt_ULOG.c
> +++ b/net/ipv4/netfilter/ipt_ULOG.c
> @@ -325,6 +325,12 @@ static int ulog_tg_check(const struct xt_tgchk_param *par)
>  {
>  	const struct ipt_ulog_info *loginfo = par->targinfo;
>  
> +	if (!par->net->xt.ulog_warn_deprecated) {
> +		pr_info("ULOG is deprecated and it will be removed soon, "
> +			"use NFLOG instead\n");
> +		par->net->xt.ulog_warn_deprecated = true;
> +	}
> +
>  	if (loginfo->prefix[sizeof(loginfo->prefix) - 1] != '\0') {
>  		pr_debug("prefix not null-terminated\n");
>  		return -EINVAL;
> 

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