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Date: Fri, 16 Nov 2007 10:46:26 +0800 From: Wang Chen <wangchen@...fujitsu.com> To: davem@...emloft.net CC: netdev@...r.kernel.org, Wang Chen <wangchen@...fujitsu.com> Subject: [PATCH 1/2] [IPV4] UDP: Always checksum even if without socket filter Dave, The current kernel doesn't verify the udp checksum if user doesn't set a socket filter.It's fine for LAN. But for WAN, it's not a good option. Shall we fix it? Below is the patch to make udp checksum be always available. [IPV4] UDP: Always checksum even if without socket filter Make udp checksum be always available even if without socket filter. Signed-off-by: Wang Chen <wangchen@...fujitsu.com> --- udp.c | 6 ++---- 1 files changed, 2 insertions(+), 4 deletions(-) --- linux-2.6.24-rc2.org/net/ipv4/udp.c 2007-11-09 16:37:57.000000000 +0800 +++ linux-2.6.24-rc2/net/ipv4/udp.c 2007-11-16 10:10:35.000000000 +0800 @@ -1011,10 +1011,8 @@ int udp_queue_rcv_skb(struct sock * sk, } } - if (sk->sk_filter) { - if (udp_lib_checksum_complete(skb)) - goto drop; - } + if (udp_lib_checksum_complete(skb)) + goto drop; if ((rc = sock_queue_rcv_skb(sk,skb)) < 0) { /* Note that an ENOMEM error is charged twice */ - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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