On Mon, 2013-05-27 at 14:33 +0200, Pablo Neira Ayuso wrote: > On Tue, May 14, 2013 at 10:45:52AM +0800, Cong Wang wrote: > > Hi, all > > > > I got the following compile errors when I compile IPv6 as a module and > > most of the rest are built into core kernel. David Miller insists we > > should fix this kind of error and not by adding Kconfig tricks. > > > > net/built-in.o: In function `nf_tproxy_get_sock_v6': > > /home/wangcong/linux/include/net/netfilter/nf_tproxy_core.h:177: > > undefined reference to `udp6_lib_lookup' > > /home/wangcong/linux/include/net/netfilter/nf_tproxy_core.h:177: > > undefined reference to `udp6_lib_lookup' > > net/built-in.o: In function `tproxy_tg_init': > > /home/wangcong/linux/net/netfilter/xt_TPROXY.c:415: undefined reference > > to `nf_defrag_ipv6_enable' > > net/built-in.o: In function `socket_mt_init': > > /home/wangcong/linux/net/netfilter/xt_socket.c:366: undefined reference > > to `nf_defrag_ipv6_enable' > > Looking at your incomplete .config, I don't see how you set xt_TPROXY > and xt_socket but I bet they are =y. > > For the udp6_lib_lookup dependency, you can use the ipv6 hooks added > here: > > commit 2a7851bffb008ff4882eee673da74718997b4265 > Author: Florian Westphal <fw@xxxxxxxxx> > Date: Fri May 17 03:56:10 2013 +0000 > > netfilter: add nf_ipv6_ops hook to fix xt_addrtype with IPv6 > > Already in the nf tree, to resolve it. It would be fairly easy to make > a patch for it. Next time please Cc me, the reporter, when you submit a fix, otherwise I don't know if it is fixed, since I don't subscribe nf mailing list. > > For the nf_defrag_ipv6_enable, as I already mentioned, that's an > artificial function to enforce the dependency between those two > modules. We can add runtime checks in socket and TPROXY to skip > further processing is nf_defrag_ipv6 is not loaded. But that's a > problem because users will assume that their socket/TPROXY rule got > loaded but it will not actually work since defrag is not loaded. I > think that really needs some Kconfig tricks for that specific case. > Yeah, please send a fix? I can test it (together with my vxlan patches) if you need. I have no cycles to work on it even if it is simple. :) Thanks! -- 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
