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<pre class="content"><meta http-equiv="content-type" content="text/html; charset=utf-8">From: Christian Scheele <a class="moz-txt-link-rfc2396E" href="mailto:cs@embedd.com"><cs@embedd.com></a>This patch adds the userspace and kernelspace for
- match NETFILTER_XT_MATCH_CLUSTER
<meta http-equiv="content-type" content="text/html; charset=utf-8"> This match can be used to deploy gateway and back-end load-sharing clusters.- target IP_NF_TARGET_CLUSTERIP
<meta http-equiv="content-type" content="text/html; charset=utf-8"><meta http-equiv="content-type" content="text/html; charset=utf-8"> 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.
<span class="signed-off-by">
Signed-off-by: Christian Scheele <a class="moz-txt-link-rfc2396E" href="mailto:chris@embedd.com"><chris@embedd.com></a>
---
diff --git a/include/netfilter.mk b/include/netfilter.mk
index fd119c5..72c66d9 100644
--- a/include/netfilter.mk
+++ b/include/netfilter.mk
@@ -46,6 +46,9 @@ $(eval $(call nf_add,IPT_CORE,CONFIG_NETFILTER_XT_MATCH_MULTIPORT, $(P_XT)xt_mul
$(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 @@ $(eval $(call nf_add,IPT_IPOPT,CONFIG_NETFILTER_XT_TARGET_HL, $(P_XT)xt_HL))
# 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_EXTRA-y)
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)
diff --git a/package/kernel/linux/modules/netfilter.mk b/package/kernel/linux/modules/netfilter.mk
index 7621c7f..2cb769d 100644
--- a/package/kernel/linux/modules/netfilter.mk
+++ b/package/kernel/linux/modules/netfilter.mk
@@ -496,6 +496,54 @@ endef
$(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 $(call KernelPackage,ipt-clusterip))
+
define KernelPackage/ipt-extra
TITLE:=Extra modules
diff --git a/package/network/utils/iptables/Makefile b/package/network/utils/iptables/Makefile
index 27201b4..5642300 100644
--- a/package/network/utils/iptables/Makefile
+++ b/package/network/utils/iptables/Makefile
@@ -246,6 +246,46 @@ iptables extensions for matching ip ranges.
endef
+define Package/iptables-mod-cluster
+$(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
@@ -489,6 +529,8 @@ $(eval $(call BuildPlugin,iptables-mod-ipopt,$(IPT_IPOPT-m)))
$(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)))
</span></pre>
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