ipvs: Remove all remaining references to rt->rt_{src,dst}

Remove all remaining references to rt->rt_{src,dst}
by using dest->dst_saddr to cache saddr (used for TUN mode).
For ICMP in FORWARD hook just restrict the rt_mode for NAT
to disable LOCALNODE. All other modes do not allow
IP_VS_RT_MODE_RDR, so we should be safe with the ICMP
forwarding. Using cp->daddr as replacement for rt_dst
is safe for all modes except BYPASS, even when cp->dest is
NULL because it is cp->daddr that is used to assign cp->dest
for sync-ed connections.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 5 deletions

diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 9d1f510ab6d0..4fff432aeade 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -665,9 +665,7 @@ struct ip_vs_dest {
         struct dst_entry        *dst_cache;     /* destination cache entry */
         u32                     dst_rtos;       /* RT_TOS(tos) for dst */
         u32                     dst_cookie;
-#ifdef CONFIG_IP_VS_IPV6
-        struct in6_addr         dst_saddr;
-#endif
+        union nf_inet_addr      dst_saddr;
 
         /* for virtual service */
         struct ip_vs_service    *svc;           /* service it belongs to */
@@ -1253,7 +1251,8 @@ extern int ip_vs_tunnel_xmit
 extern int ip_vs_dr_xmit
 (struct sk_buff *skb, struct ip_vs_conn *cp, struct ip_vs_protocol *pp);
 extern int ip_vs_icmp_xmit
-(struct sk_buff *skb, struct ip_vs_conn *cp, struct ip_vs_protocol *pp, int offset);
+(struct sk_buff *skb, struct ip_vs_conn *cp, struct ip_vs_protocol *pp,
+ int offset, unsigned int hooknum);
 extern void ip_vs_dst_reset(struct ip_vs_dest *dest);
 
 #ifdef CONFIG_IP_VS_IPV6
@@ -1267,7 +1266,7 @@ extern int ip_vs_dr_xmit_v6
 (struct sk_buff *skb, struct ip_vs_conn *cp, struct ip_vs_protocol *pp);
 extern int ip_vs_icmp_xmit_v6
 (struct sk_buff *skb, struct ip_vs_conn *cp, struct ip_vs_protocol *pp,
- int offset);
+ int offset, unsigned int hooknum);
 #endif
 
 #ifdef CONFIG_SYSCTL