linux-kernel - Re: [PATCH net-next 1/3] net: core: let skb_partial_csum

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 27 Mar 2013 07:42:56 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Jason Wang <jasowang@...hat.com>
Cc:	davem@...emloft.net, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, mst@...hat.com,
	Eric Dumazet <edumazet@...gle.com>
Subject: Re: [PATCH net-next 1/3] net: core: let skb_partial_csum_set() set
 transport header

On Wed, 2013-03-27 at 17:11 +0800, Jason Wang wrote:
> For untrusted packets with partial checksum, we need to set the transport header
> for precise packet length estimation. We can just let skb_pratial_csum_set() to
> do this to avoid extra call to skb_flow_dissect() and simplify the caller.
> 
> Cc: Eric Dumazet <edumazet@...gle.com>
> Signed-off-by: Jason Wang <jasowang@...hat.com>
> ---
>  net/core/skbuff.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
> 
> diff --git a/net/core/skbuff.c b/net/core/skbuff.c
> index 31c6737..ba64614 100644
> --- a/net/core/skbuff.c
> +++ b/net/core/skbuff.c
> @@ -3370,6 +3370,7 @@ bool skb_partial_csum_set(struct sk_buff *skb, u16 start, u16 off)
>  	skb->ip_summed = CHECKSUM_PARTIAL;
>  	skb->csum_start = skb_headroom(skb) + start;
>  	skb->csum_offset = off;
> +	skb_set_transport_header(skb, start);
>  	return true;
>  }
>  EXPORT_SYMBOL_GPL(skb_partial_csum_set);

Acked-by: Eric Dumazet <edumazet@...gle.com>


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/