Author: nbd
Date: 2014-11-03 23:01:45 +0100 (Mon, 03 Nov 2014)
New Revision: 43174

Modified:
   trunk/include/netfilter.mk
   trunk/package/kernel/linux/modules/netfilter.mk
   trunk/package/network/utils/iptables/Makefile
Log:
netfilter: Enable compiling iptables match cluster

This patch adds the userspace and kernelspace for

- match NETFILTER_XT_MATCH_CLUSTER
  This match can be used to deploy gateway and back-end load-sharing clusters.
- target IP_NF_TARGET_CLUSTERIP
  This module allows you to configure a simple cluster of nodes
  that share a certain IP and MAC address
  without an explicit load balancer in front of them.
  Connections are statically distributed between the nodes in this cluster.

This is used i.e. by strongswan-ha.

Signed-off-by: Christian Scheele <[email protected]>

Modified: trunk/include/netfilter.mk
===================================================================
--- trunk/include/netfilter.mk  2014-11-03 20:20:56 UTC (rev 43173)
+++ trunk/include/netfilter.mk  2014-11-03 22:01:45 UTC (rev 43174)
@@ -46,6 +46,9 @@
 $(eval $(call nf_add,IPT_CORE,CONFIG_NETFILTER_XT_MATCH_COMMENT, 
$(P_XT)xt_comment))
 $(eval $(call nf_add,IPT_CORE,CONFIG_NETFILTER_XT_MATCH_ID, $(P_XT)xt_id))
 
+#cluster
+$(eval $(call nf_add,IPT_CLUSTER,CONFIG_NETFILTER_XT_MATCH_CLUSTER, 
$(P_XT)xt_cluster))
+
 $(eval $(call nf_add,IPT_CORE,CONFIG_NETFILTER_XT_TARGET_LOG, $(P_XT)xt_LOG, 
ge 3.4.0))
 $(eval $(call nf_add,IPT_CORE,CONFIG_IP_NF_TARGET_LOG, $(P_V4)ipt_LOG, lt 
3.4.0))
 $(eval $(call nf_add,IPT_CORE,CONFIG_NETFILTER_XT_TARGET_TCPMSS, 
$(P_XT)xt_TCPMSS))
@@ -126,6 +129,8 @@
 # iprange
 $(eval $(call nf_add,IPT_IPRANGE,CONFIG_NETFILTER_XT_MATCH_IPRANGE, 
$(P_XT)xt_iprange))
 
+#clusterip
+$(eval $(call nf_add,IPT_CLUSTERIP,CONFIG_IP_NF_TARGET_CLUSTERIP, 
$(P_V4)ipt_CLUSTERIP))
 
 # ipsec
 $(eval $(call nf_add,IPT_IPSEC,CONFIG_IP_NF_MATCH_AH, $(P_V4)ipt_ah))
@@ -346,6 +351,8 @@
 IPT_BUILTIN += $(IPT_FILTER-y)
 IPT_BUILTIN += $(IPT_IPOPT-y)
 IPT_BUILTIN += $(IPT_IPRANGE-y)
+IPT_BUILTIN += $(IPT_CLUSTER-y)
+IPT_BUILTIN += $(IPT_CLUSTERIP-y)
 IPT_BUILTIN += $(IPT_IPSEC-y)
 IPT_BUILTIN += $(IPT_IPV6-y) $(IPT_IPV6-m)
 IPT_BUILTIN += $(NF_NAT-y)

Modified: trunk/package/kernel/linux/modules/netfilter.mk
===================================================================
--- trunk/package/kernel/linux/modules/netfilter.mk     2014-11-03 20:20:56 UTC 
(rev 43173)
+++ trunk/package/kernel/linux/modules/netfilter.mk     2014-11-03 22:01:45 UTC 
(rev 43174)
@@ -496,7 +496,55 @@
 
 $(eval $(call KernelPackage,ipt-iprange))
 
+define KernelPackage/ipt-cluster
+  TITLE:=Module for matching cluster
+  KCONFIG:=$(KCONFIG_IPT_CLUSTER)
+  FILES:=$(foreach mod,$(IPT_CLUSTER-m),$(LINUX_DIR)/net/$(mod).ko)
+  AUTOLOAD:=$(call AutoProbe,$(notdir $(IPT_CLUSTER-m)))
+  $(call AddDepends/ipt)
+endef
 
+define KernelPackage/ipt-cluster/description
+ Netfilter (IPv4/IPv6) module for matching cluster
+ This option allows you to build work-load-sharing clusters of
+ network servers/stateful firewalls without having a dedicated
+ load-balancing router/server/switch. Basically, this match returns
+ true when the packet must be handled by this cluster node. Thus,
+ all nodes see all packets and this match decides which node handles
+ what packets. The work-load sharing algorithm is based on source
+ address hashing.
+
+ This module is usable for ipv4 and ipv6.
+
+ To use it also enable iptables-mod-cluster
+
+ see `iptables -m cluster --help` for more information.
+endef
+
+$(eval $(call KernelPackage,ipt-cluster))
+
+define KernelPackage/ipt-clusterip
+  TITLE:=Module for CLUSTERIP
+  KCONFIG:=$(KCONFIG_IPT_CLUSTERIP)
+  FILES:=$(foreach mod,$(IPT_CLUSTERIP-m),$(LINUX_DIR)/net/$(mod).ko)
+  AUTOLOAD:=$(call AutoProbe,$(notdir $(IPT_CLUSTERIP-m)))
+  $(call AddDepends/ipt,+kmod-nf-conntrack)
+endef
+
+define KernelPackage/ipt-clusterip/description
+ Netfilter (IPv4-only) module for CLUSTERIP
+ The CLUSTERIP target allows you to build load-balancing clusters of
+ network servers without having a dedicated load-balancing
+ router/server/switch.
+
+ To use it also enable iptables-mod-clusterip
+
+ see `iptables -j CLUSTERIP --help` for more information.
+endef
+
+$(eval $(call KernelPackage,ipt-clusterip))
+
+
 define KernelPackage/ipt-extra
   TITLE:=Extra modules
   KCONFIG:=$(KCONFIG_IPT_EXTRA)

Modified: trunk/package/network/utils/iptables/Makefile
===================================================================
--- trunk/package/network/utils/iptables/Makefile       2014-11-03 20:20:56 UTC 
(rev 43173)
+++ trunk/package/network/utils/iptables/Makefile       2014-11-03 22:01:45 UTC 
(rev 43174)
@@ -247,6 +247,46 @@
 
 endef
 
+define Package/iptables-mod-cluster
+$(call Package/iptables/Module, +kmod-ipt-cluster)
+  TITLE:=Match cluster extension
+endef
+
+define Package/iptables-mod-cluster/description
+iptables extensions for matching cluster.
+
+ Netfilter (IPv4/IPv6) module for matching cluster
+ This option allows you to build work-load-sharing clusters of
+ network servers/stateful firewalls without having a dedicated
+ load-balancing router/server/switch. Basically, this match returns
+ true when the packet must be handled by this cluster node. Thus,
+ all nodes see all packets and this match decides which node handles
+ what packets. The work-load sharing algorithm is based on source
+ address hashing.
+
+ This module is usable for ipv4 and ipv6.
+
+ If you select it, it enables kmod-ipt-cluster.
+
+ see `iptables -m cluster --help` for more information.
+endef
+
+define Package/iptables-mod-clusterip
+$(call Package/iptables/Module, +kmod-ipt-clusterip)
+  TITLE:=Clusterip extension
+endef
+
+define Package/iptables-mod-clusterip/description
+iptables extensions for CLUSTERIP.
+ The CLUSTERIP target allows you to build load-balancing clusters of
+ network servers without having a dedicated load-balancing
+ router/server/switch.
+
+ If you select it, it enables kmod-ipt-clusterip.
+
+ see `iptables -j CLUSTERIP --help` for more information.
+endef
+
 define Package/iptables-mod-extra
 $(call Package/iptables/Module, +kmod-ipt-extra)
   TITLE:=Other extra iptables extensions
@@ -490,6 +530,8 @@
 $(eval $(call BuildPlugin,iptables-mod-ipsec,$(IPT_IPSEC-m)))
 $(eval $(call BuildPlugin,iptables-mod-nat-extra,$(IPT_NAT_EXTRA-m)))
 $(eval $(call BuildPlugin,iptables-mod-iprange,$(IPT_IPRANGE-m)))
+$(eval $(call BuildPlugin,iptables-mod-cluster,$(IPT_CLUSTER-m)))
+$(eval $(call BuildPlugin,iptables-mod-clusterip,$(IPT_CLUSTERIP-m)))
 $(eval $(call BuildPlugin,iptables-mod-ulog,$(IPT_ULOG-m)))
 $(eval $(call BuildPlugin,iptables-mod-hashlimit,$(IPT_HASHLIMIT-m)))
 $(eval $(call BuildPlugin,iptables-mod-led,$(IPT_LED-m)))
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