From: David Miller <davem@davemloft.net>
To: u9012063@gmail.com
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH net-next] erspan: auto detect truncated packets.
Date: Mon, 30 Apr 2018 11:44:10 -0400 (EDT) [thread overview]
Message-ID: <20180430.114410.1341893433757519940.davem@davemloft.net> (raw)
In-Reply-To: <1524863792-66068-1-git-send-email-u9012063@gmail.com>
From: William Tu <u9012063@gmail.com>
Date: Fri, 27 Apr 2018 14:16:32 -0700
> Currently the truncated bit is set only when the mirrored packet
> is larger than mtu. For certain cases, the packet might already
> been truncated before sending to the erspan tunnel. In this case,
> the patch detect whether the IP header's total length is larger
> than the actual skb->len. If true, this indicated that the
> mirrored packet is truncated and set the erspan truncate bit.
>
> I tested the patch using bpf_skb_change_tail helper function to
> shrink the packet size and send to erspan tunnel.
>
> Reported-by: Xiaoyan Jin <xiaoyanj@vmware.com>
> Signed-off-by: William Tu <u9012063@gmail.com>
Applied, thanks.
prev parent reply other threads:[~2018-04-30 15:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-27 21:16 [PATCH net-next] erspan: auto detect truncated packets William Tu
2018-04-30 15:44 ` David Miller [this message]
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