On Thu, Aug 30, 2007 at 09:51:31AM +0000, James Chapman wrote: > > The captured PPPoE stream seems to show incorrect data lengths in the > PPPoE header for some captured PPPoE packets. The kernel's PPPoE > datapath uses this length to extract the PPP frame and send it through > to the ppp interface. Since your ppp stream is fine, the actual PPPoE > header contents must be correct when it is parsed by the kernel PPPoE > code. It seems more likely that this is a wireshark bug to me.
If he were using the kernel pppoe driver, then this is because PPP filtering is writing over a cloned skb without copying it. In fact, there seems to be quite a few bugs of this kind in the various ppp*.c files. Please try the following patches to see if they make a difference. I've audited ppp_generic.c and pppoe.c. I'll do pppol2tp tomorrow. Cheers, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <[EMAIL PROTECTED]> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt - 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
