netdev - Re: [PATCH net] net: Fix CONFIG_NET_CLS_ACT=n and CONFIG_NFT_FWD

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Message-Id: <20200325.122930.448274240867191914.davem@davemloft.net>
Date:   Wed, 25 Mar 2020 12:29:30 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     pablo@...filter.org
Cc:     netfilter-devel@...r.kernel.org, netdev@...r.kernel.org,
        geert@...ux-m68k.org
Subject: Re: [PATCH net] net: Fix CONFIG_NET_CLS_ACT=n and
 CONFIG_NFT_FWD_NETDEV={y,m} build

From: Pablo Neira Ayuso <pablo@...filter.org>
Date: Wed, 25 Mar 2020 13:47:18 +0100

> net/netfilter/nft_fwd_netdev.c: In function ‘nft_fwd_netdev_eval’:
>     net/netfilter/nft_fwd_netdev.c:32:10: error: ‘struct sk_buff’ has no member named ‘tc_redirected’
>       pkt->skb->tc_redirected = 1;
>               ^~
>     net/netfilter/nft_fwd_netdev.c:33:10: error: ‘struct sk_buff’ has no member named ‘tc_from_ingress’
>       pkt->skb->tc_from_ingress = 1;
>               ^~
> 
> To avoid a direct dependency with tc actions from netfilter, wrap the
> redirect bits around CONFIG_NET_REDIRECT and move helpers to
> include/linux/skbuff.h. Turn on this toggle from the ifb driver, the
> only existing client of these bits in the tree.
> 
> This patch adds skb_set_redirected() that sets on the redirected bit
> on the skbuff, it specifies if the packet was redirect from ingress
> and resets the timestamp (timestamp reset was originally missing in the
> netfilter bugfix).
> 
> Fixes: bcfabee1afd99484 ("netfilter: nft_fwd_netdev: allow to redirect to ifb via ingress")
> Reported-by: noreply@...erman.id.au
> Reported-by: Geert Uytterhoeven <geert@...ux-m68k.org>
> Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>

Applied, thanks.