From: Wang Chen <[EMAIL PROTECTED]>
Date: Fri, 16 Nov 2007 11:18:16 +0800

> Actually, I tested and found this issue.
> I sent 50 udp packets, which have wrong checksum, to my
> machine.
> Before the patch being applied, /proc/net/snmp's udp
> InDatagrams increased, and InErrors didn't increase.
> After the patch being applied, InErrors increased correctly
> and InDatagrams stayed unchanging.

That's right, InDataGrams will increase even if we haven't
verified the checksum yet.

When the user does a recvmsg() or a poll() on the socket,
we will notice the bad checksum then and increment InErrors.
We could in this case correct the InDatagrams counter by
decrementing it in this case.
-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to