| Message ID | 52DC9D25.9070809@cn.fujitsu.com |
|---|---|
| State | Rejected, archived |
| Delegated to: | David Miller |
| Headers | show |
From: Duan Jiong <duanj.fnst@cn.fujitsu.com> Date: Mon, 20 Jan 2014 11:51:01 +0800 > According to the user's intention, if SO_NO_CHECK option is > set to true, the udpv6 packet should be out with no checksum. > > Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com> This is intentionally not supported in ipv6. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Mon, Jan 20, 2014 at 11:51:01AM +0800, Duan Jiong wrote: > > According to the user's intention, if SO_NO_CHECK option is > set to true, the udpv6 packet should be out with no checksum. Nak, UDP checksumming is mandatory when used with IPv6. Greetings, Hannes -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 089c741..8808c69 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -1001,6 +1001,10 @@ static int udp_v6_push_pending_frames(struct sock *sk) if (is_udplite) csum = udplite_csum_outgoing(sk, skb); + else if (sk->sk_no_check == UDP_CSUM_NOXMIT) { + skb->ip_summed = CHECKSUM_NONE; + goto send; + } else if (skb->ip_summed == CHECKSUM_PARTIAL) { /* UDP hardware csum */ udp6_hwcsum_outgoing(sk, skb, &fl6->saddr, &fl6->daddr, up->len);
According to the user's intention, if SO_NO_CHECK option is set to true, the udpv6 packet should be out with no checksum. Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com> --- net/ipv6/udp.c | 4 ++++ 1 file changed, 4 insertions(+)