Re: [PATCH] netfilter: provide udp*_lib_lookup for nf_tproxy

[Pablo Neira Ayuso <pablo@netfilter.org>]

On Tue, Jun 05, 2018 at 10:54:53AM -0400, David Miller wrote:
> From: Arnd Bergmann <arnd@arndb.de>
> Date: Tue,  5 Jun 2018 13:40:34 +0200
> 
> > It is now possible to enable the libified nf_tproxy modules without
> > also enabling NETFILTER_XT_TARGET_TPROXY, which throws off the
> > ifdef logic in the udp core code:
> > 
> > net/ipv6/netfilter/nf_tproxy_ipv6.o: In function `nf_tproxy_get_sock_v6':
> > nf_tproxy_ipv6.c:(.text+0x1a8): undefined reference to `udp6_lib_lookup'
> > net/ipv4/netfilter/nf_tproxy_ipv4.o: In function `nf_tproxy_get_sock_v4':
> > nf_tproxy_ipv4.c:(.text+0x3d0): undefined reference to `udp4_lib_lookup'
> > 
> > We can actually simplify the conditions now to provide the two functions
> > exactly when they are needed.
> > 
> > Fixes: 45ca4e0cf273 ("netfilter: Libify xt_TPROXY")
> > Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> 
> Pablo, I'm going to apply this directly to fix the link failure.
> 
> Thanks Arnd.

Thanks David.