On Wednesday 2010-03-17 14:31, Patrick McHardy wrote: >Jan Engelhardt wrote: >> I do not see a point of allowing the MAC module to work with devices >> that don't possibly have one, e.g. various tunnel interfaces such as >> tun and sit. > >> @@ -29,6 +30,8 @@ static bool mac_mt(const struct sk_buff *skb, const struct xt_match_param *par) >> const struct xt_mac_info *info = par->matchinfo; >> bool ret; >> >> + if (skb->dev == NULL || skb->dev->type != ARPHRD_ETHER) >> + return false; > >What about the ~60 ARPHRD values that are not tunnels and sit? xt_mac uses eth_hdr(skb), so it makes sense to limit it to ethernet, as we cannot be sure of the exact frame formats of other link layers. Do you have an alternate proposal? -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html