linux/net/netfilter/ipvs
Martin KaFai Lau 48e8aa6e31 ipv6: Set FLOWI_FLAG_KNOWN_NH at flowi6_flags
The neighbor look-up used to depend on the rt6i_gateway (if
there is a gateway) or the rt6i_dst (if it is a RTF_CACHE clone)
as the nexthop address.  Note that rt6i_dst is set to fl6->daddr
for the RTF_CACHE clone where fl6->daddr is the one used to do
the route look-up.

Now, we only create RTF_CACHE clone after encountering exception.
When doing the neighbor look-up with a route that is neither a gateway
nor a RTF_CACHE clone, the daddr in skb will be used as the nexthop.

In some cases, the daddr in skb is not the one used to do
the route look-up.  One example is in ip_vs_dr_xmit_v6() where the
real nexthop server address is different from the one in the skb.

This patch is going to follow the IPv4 approach and ask the
ip6_pol_route() callers to set the FLOWI_FLAG_KNOWN_NH properly.

In the next patch, ip6_pol_route() will honor the FLOWI_FLAG_KNOWN_NH
and create a RTF_CACHE clone.

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Tested-by: Julian Anastasov <ja@ssi.bg>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-25 13:25:34 -04:00
..
Kconfig
Makefile
ip_vs_app.c
ip_vs_conn.c
ip_vs_core.c netfilter: Make nf_hookfn use nf_hook_state. 2015-04-04 12:31:38 -04:00
ip_vs_ctl.c ipvs: fix memory leak in ip_vs_ctl.c 2015-05-08 17:58:54 +09:00
ip_vs_dh.c
ip_vs_est.c
ip_vs_fo.c
ip_vs_ftp.c
ip_vs_lblc.c
ip_vs_lblcr.c
ip_vs_lc.c
ip_vs_nfct.c
ip_vs_nq.c
ip_vs_pe.c
ip_vs_pe_sip.c
ip_vs_proto.c
ip_vs_proto_ah_esp.c
ip_vs_proto_sctp.c
ip_vs_proto_tcp.c
ip_vs_proto_udp.c
ip_vs_rr.c
ip_vs_sched.c
ip_vs_sed.c
ip_vs_sh.c
ip_vs_sync.c net: Modify sk_alloc to not reference count the netns of kernel sockets. 2015-05-11 10:50:18 -04:00
ip_vs_wlc.c
ip_vs_wrr.c
ip_vs_xmit.c ipv6: Set FLOWI_FLAG_KNOWN_NH at flowi6_flags 2015-05-25 13:25:34 -04:00