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linux-2.6/net/ipv4/netfilter
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David S. Miller f8126f1d51 ipv4: Adjust semantics of rt->rt_gateway. 
In order to allow prefixed routes, we have to adjust how rt_gateway
is set and interpreted.

The new interpretation is:

1) rt_gateway == 0, destination is on-link, nexthop is iph->daddr

2) rt_gateway != 0, destination requires a nexthop gateway

Abstract the fetching of the proper nexthop value using a new
inline helper, rt_nexthop(), as suggested by Joe Perches.

Signed-off-by: David S. Miller <davem@davemloft.net>
Tested-by: Vijay Subramanian <subramanian.vijay@gmail.com>
 		2012-07-20 13:31:20 -07:00
..
Kconfig netfilter: merge ipt_LOG and ip6_LOG into xt_LOG 2012-03-07 17:40:49 +01:00
Makefile netfilter: remove ip_queue support 2012-05-08 20:25:42 +02:00
arp_tables.c net: Convert net_ratelimit uses to net_<level>_ratelimited 2012-05-15 13:45:03 -04:00
arpt_mangle.c netfilter: arpt_mangle: fix return values of checkentry 2011-02-01 16:03:46 +01:00
arptable_filter.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ip_tables.c net: Convert net_ratelimit uses to net_<level>_ratelimited 2012-05-15 13:45:03 -04:00
ipt_CLUSTERIP.c net: Convert net_ratelimit uses to net_<level>_ratelimited 2012-05-15 13:45:03 -04:00
ipt_ECN.c netfilter: xtables: substitute temporary defines by final name 2010-05-11 18:31:17 +02:00
ipt_MASQUERADE.c ipv4: Adjust semantics of rt->rt_gateway. 2012-07-20 13:31:20 -07:00
ipt_NETMAP.c netfilter: nf_nat: export NAT definitions to userspace 2011-12-23 14:36:43 +01:00
ipt_REDIRECT.c netfilter: nf_nat: export NAT definitions to userspace 2011-12-23 14:36:43 +01:00
ipt_REJECT.c netfilter: Fix ip_route_me_harder triggering ip_rt_bug 2011-06-29 05:47:32 -07:00
ipt_ULOG.c netlink: add netlink_kernel_cfg parameter to netlink_kernel_create 2012-06-29 16:46:02 -07:00
ipt_ah.c netfilter: xtables: change hotdrop pointer to direct modification 2010-05-11 18:35:27 +02:00
ipt_rpfilter.c netfilter: add ipv4 reverse path filter match 2011-12-04 22:43:37 +01:00
iptable_filter.c netfilter: remove forward module param confusion. 2012-03-22 22:36:17 -04:00
iptable_mangle.c netfilter: do not omit re-route check on NF_QUEUE verdict 2011-01-20 10:23:26 +01:00
iptable_raw.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
iptable_security.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
nf_conntrack_l3proto_ipv4.c netfilter: add user-space connection tracking helper infrastructure 2012-06-16 15:40:02 +02:00
nf_conntrack_l3proto_ipv4_compat.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
nf_conntrack_proto_icmp.c netfilter: nf_conntrack: generalize nf_ct_l4proto_net 2012-07-04 19:37:22 +02:00
nf_defrag_ipv4.c netfilter: ipv4, defrag: switch hook PFs to nfproto 2012-06-07 14:58:42 +02:00
nf_nat_amanda.c netfilter: nf_ct_helper: implement variable length helper private data 2012-06-16 15:08:55 +02:00
nf_nat_core.c netfilter: nfnetlink_queue: fix compilation with CONFIG_NF_NAT=m and CONFIG_NF_CT_NETLINK=y 2012-06-22 02:49:52 +02:00
nf_nat_ftp.c rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER 2011-08-02 04:29:23 -07:00
nf_nat_h323.c netfilter: nf_ct_helper: implement variable length helper private data 2012-06-16 15:08:55 +02:00
nf_nat_helper.c netfilter: nfnetlink_queue: add NAT TCP sequence adjustment if packet mangled 2012-06-16 15:09:08 +02:00
nf_nat_irc.c rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER 2011-08-02 04:29:23 -07:00
nf_nat_pptp.c netfilter: nf_ct_helper: implement variable length helper private data 2012-06-16 15:08:55 +02:00
nf_nat_proto_common.c netfilter: ctnetlink: remove dead NAT code 2011-12-23 14:36:46 +01:00
nf_nat_proto_dccp.c netfilter: ctnetlink: remove dead NAT code 2011-12-23 14:36:46 +01:00
nf_nat_proto_gre.c netfilter: ctnetlink: remove dead NAT code 2011-12-23 14:36:46 +01:00
nf_nat_proto_icmp.c netfilter: ctnetlink: remove dead NAT code 2011-12-23 14:36:46 +01:00
nf_nat_proto_sctp.c netfilter: ctnetlink: remove dead NAT code 2011-12-23 14:36:46 +01:00
nf_nat_proto_tcp.c netfilter: ctnetlink: remove dead NAT code 2011-12-23 14:36:46 +01:00
nf_nat_proto_udp.c netfilter: ctnetlink: remove dead NAT code 2011-12-23 14:36:46 +01:00
nf_nat_proto_udplite.c netfilter: ctnetlink: remove dead NAT code 2011-12-23 14:36:46 +01:00
nf_nat_proto_unknown.c netfilter: nat: remove module reference counting from NAT protocols 2011-12-23 14:36:45 +01:00
nf_nat_rule.c netfilter: nf_nat: export NAT definitions to userspace 2011-12-23 14:36:43 +01:00
nf_nat_sip.c net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
nf_nat_snmp_basic.c net: Remove casts to same type 2012-06-04 11:45:11 -04:00
nf_nat_standalone.c netfilter: nf_nat: export NAT definitions to userspace 2011-12-23 14:36:43 +01:00
nf_nat_tftp.c netfilter: nf_ct_helper: implement variable length helper private data 2012-06-16 15:08:55 +02:00