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

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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>
This commit is contained in:
Julian Anastasov 2011-05-10 12:46:05 +00:00 • committed by David S. Miller
commit c92f5ca2e5
3 changed files with 54 additions and 51 deletions
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9
include/net/ip_vs.h
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@ -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