From 3a25b868c7ec5a22f6af9e433a1f8f2d09718761 Mon Sep 17 00:00:00 2001
From: nico <nico@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Mon, 22 Sep 2008 15:19:59 +0000
Subject: make the whole iptables/netfiter modular (closes: #3871, #3527)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@12649 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 include/netfilter.mk | 102 ++++++++++++++++++++++++++++++++-------------------
 1 file changed, 65 insertions(+), 37 deletions(-)

(limited to 'include')

diff --git a/include/netfilter.mk b/include/netfilter.mk
index 0ccbf590d..8acff9048 100644
--- a/include/netfilter.mk
+++ b/include/netfilter.mk
@@ -21,29 +21,56 @@ define nf_add
 endef
 
 
+# core
+
+# kernel only
+$(eval $(if $(NF_KMOD),$(call nf_add,IPT_CORE,CONFIG_NETFILTER_XTABLES, $(P_XT)x_tables $(P_XT)xt_tcpudp),))
+$(eval $(if $(NF_KMOD),$(call nf_add,IPT_CORE,CONFIG_IP_NF_IPTABLES, $(P_V4)ip_tables),))
+$(eval $(if $(NF_KMOD),$(call nf_add,IPT_CORE,CONFIG_IP_NF_FILTER, $(P_V4)iptable_filter),))
+$(eval $(if $(NF_KMOD),$(call nf_add,IPT_CORE,CONFIG_IP_NF_MANGLE, $(P_V4)iptable_mangle),))
+
+# userland only
+$(eval $(if $(NF_KMOD),,$(call nf_add,IPT_CORE,CONFIG_IP_NF_IPTABLES, xt_standard ipt_icmp xt_tcp xt_udp)))
+
+$(eval $(call nf_add,IPT_CORE,CONFIG_IP_NF_MATCH_LIMIT, $(P_V4)ipt_limit))
+$(eval $(call nf_add,IPT_CORE,CONFIG_NETFILTER_XT_MATCH_LIMIT, $(P_XT)xt_limit))
+$(eval $(call nf_add,IPT_CORE,CONFIG_IP_NF_MATCH_MAC, $(P_V4)ipt_mac))
+$(eval $(call nf_add,IPT_CORE,CONFIG_NETFILTER_XT_MATCH_MAC, $(P_XT)xt_mac))
+$(eval $(call nf_add,IPT_CORE,CONFIG_IP_NF_MATCH_MULTIPORT, $(P_V4)ipt_multiport))
+$(eval $(call nf_add,IPT_CORE,CONFIG_NETFILTER_XT_MATCH_MULTIPORT, $(P_XT)xt_multiport))
+
+$(eval $(call nf_add,IPT_CORE,CONFIG_IP_NF_TARGET_LOG, $(P_V4)ipt_LOG))
+$(eval $(call nf_add,IPT_CORE,CONFIG_IP_NF_TARGET_TCPMSS, $(P_V4)ipt_TCPMSS))
+$(eval $(call nf_add,IPT_CORE,CONFIG_NETFILTER_XT_TARGET_TCPMSS, $(P_XT)xt_TCPMSS))
+$(eval $(call nf_add,IPT_CORE,CONFIG_IP_NF_TARGET_REJECT, $(P_V4)ipt_REJECT))
+
+
 # conntrack
 
 # kernel only
 $(eval $(if $(NF_KMOD),$(call nf_add,IPT_CONNTRACK,CONFIG_NF_CONNTRACK, $(P_XT)nf_conntrack),))
+$(eval $(if $(NF_KMOD),$(call nf_add,IPT_CONNTRACK,CONFIG_IP_NF_CONNTRACK, $(P_V4)ip_conntrack),))
 $(eval $(if $(NF_KMOD),$(call nf_add,IPT_CONNTRACK,CONFIG_NF_CONNTRACK_IPV4, $(P_V4)nf_conntrack_ipv4),))
 
-$(eval $(call nf_add,IPT_CONNTRACK,CONFIG_IP_NF_MATCH_CONNBYTES, $(P_V4)ipt_connbytes))
-$(eval $(call nf_add,IPT_CONNTRACK,CONFIG_NETFILTER_XT_MATCH_CONNBYTES, $(P_XT)xt_connbytes))
-$(eval $(call nf_add,IPT_CONNTRACK,CONFIG_IP_NF_MATCH_CONNMARK, $(P_V4)ipt_connmark))
-$(eval $(call nf_add,IPT_CONNTRACK,CONFIG_NETFILTER_XT_MATCH_CONNMARK, $(P_XT)xt_connmark))
-$(eval $(call nf_add,IPT_CONNTRACK,CONFIG_IP_NF_MATCH_CONNTRACK, $(P_V4)ipt_conntrack))
-$(eval $(call nf_add,IPT_CONNTRACK,CONFIG_NETFILTER_XT_MATCH_CONNTRACK, $(P_XT)xt_conntrack))
-$(eval $(call nf_add,IPT_CONNTRACK,CONFIG_IP_NF_MATCH_HELPER, $(P_V4)ipt_helper))
-$(eval $(call nf_add,IPT_CONNTRACK,CONFIG_NETFILTER_XT_MATCH_HELPER, $(P_XT)xt_helper))
-$(eval $(call nf_add,IPT_CONNTRACK,CONFIG_IP_NF_MATCH_LIMIT, $(P_V4)ipt_limit))
-$(eval $(call nf_add,IPT_CONNTRACK,CONFIG_NETFILTER_XT_MATCH_LIMIT, $(P_XT)xt_limit))
-$(eval $(call nf_add,IPT_CONNTRACK,CONFIG_IP_NF_MATCH_RECENT, $(P_V4)ipt_recent))
 $(eval $(call nf_add,IPT_CONNTRACK,CONFIG_IP_NF_MATCH_STATE, $(P_V4)ipt_state))
 $(eval $(call nf_add,IPT_CONNTRACK,CONFIG_NETFILTER_XT_MATCH_STATE, $(P_XT)xt_state))
 
-$(eval $(call nf_add,IPT_CONNTRACK,CONFIG_IP_NF_TARGET_CONNMARK, $(P_V4)ipt_CONNMARK))
-$(eval $(call nf_add,IPT_CONNTRACK,CONFIG_NETFILTER_XT_TARGET_CONNMARK, $(P_XT)xt_CONNMARK))
-$(eval $(call nf_add,IPT_CONNTRACK,CONFIG_NETFILTER_XT_TARGET_NOTRACK, $(P_XT)xt_NOTRACK))
+
+# conntrack-extra
+
+$(eval $(call nf_add,IPT_CONNTRACK_EXTRA,CONFIG_IP_NF_MATCH_CONNBYTES, $(P_V4)ipt_connbytes))
+$(eval $(call nf_add,IPT_CONNTRACK_EXTRA,CONFIG_NETFILTER_XT_MATCH_CONNBYTES, $(P_XT)xt_connbytes))
+$(eval $(call nf_add,IPT_CONNTRACK_EXTRA,CONFIG_IP_NF_MATCH_CONNMARK, $(P_V4)ipt_connmark))
+$(eval $(call nf_add,IPT_CONNTRACK_EXTRA,CONFIG_NETFILTER_XT_MATCH_CONNMARK, $(P_XT)xt_connmark))
+$(eval $(call nf_add,IPT_CONNTRACK_EXTRA,CONFIG_IP_NF_MATCH_CONNTRACK, $(P_V4)ipt_conntrack))
+$(eval $(call nf_add,IPT_CONNTRACK_EXTRA,CONFIG_NETFILTER_XT_MATCH_CONNTRACK, $(P_XT)xt_conntrack))
+$(eval $(call nf_add,IPT_CONNTRACK_EXTRA,CONFIG_IP_NF_MATCH_HELPER, $(P_V4)ipt_helper))
+$(eval $(call nf_add,IPT_CONNTRACK_EXTRA,CONFIG_NETFILTER_XT_MATCH_HELPER, $(P_XT)xt_helper))
+$(eval $(call nf_add,IPT_CONNTRACK_EXTRA,CONFIG_IP_NF_MATCH_RECENT, $(P_V4)ipt_recent))
+
+$(eval $(call nf_add,IPT_CONNTRACK_EXTRA,CONFIG_IP_NF_TARGET_CONNMARK, $(P_V4)ipt_CONNMARK))
+$(eval $(call nf_add,IPT_CONNTRACK_EXTRA,CONFIG_NETFILTER_XT_TARGET_CONNMARK, $(P_XT)xt_CONNMARK))
+$(eval $(call nf_add,IPT_CONNTRACK_EXTRA,CONFIG_NETFILTER_XT_TARGET_NOTRACK, $(P_XT)xt_NOTRACK))
 
 
 # extra
@@ -63,8 +90,6 @@ $(eval $(call nf_add,IPT_EXTRA,CONFIG_NETFILTER_XT_MATCH_QUOTA, $(P_XT)xt_quota)
 $(eval $(call nf_add,IPT_EXTRA,CONFIG_NETFILTER_XT_TARGET_TARPIT, $(P_XT)xt_TARPIT))
 $(eval $(call nf_add,IPT_EXTRA,CONFIG_NETFILTER_XT_TARGET_DELUDE, $(P_XT)xt_DELUDE))
 $(eval $(call nf_add,IPT_EXTRA,CONFIG_NETFILTER_XT_TARGET_CHAOS, $(P_XT)xt_CHAOS))
-$(eval $(call nf_add,IPT_EXTRA,CONFIG_IP_NF_TARGET_LOG, $(P_V4)ipt_LOG))
-$(eval $(call nf_add,IPT_EXTRA,CONFIG_IP_NF_TARGET_REJECT, $(P_V4)ipt_REJECT))
 #$(eval $(call nf_add,IPT_EXTRA,CONFIG_IP_NF_TARGET_ROUTE, $(P_V4)ipt_ROUTE))
 
 
@@ -90,18 +115,13 @@ $(eval $(call nf_add,IPT_IPOPT,CONFIG_NETFILTER_XT_TARGET_DSCP, $(P_XT)xt_DSCP))
 $(eval $(call nf_add,IPT_IPOPT,CONFIG_IP_NF_MATCH_ECN, $(P_V4)ipt_ecn))
 $(eval $(call nf_add,IPT_IPOPT,CONFIG_IP_NF_MATCH_LENGTH, $(P_V4)ipt_length))
 $(eval $(call nf_add,IPT_IPOPT,CONFIG_NETFILTER_XT_MATCH_LENGTH, $(P_XT)xt_length))
-$(eval $(call nf_add,IPT_IPOPT,CONFIG_IP_NF_MATCH_MAC, $(P_V4)ipt_mac))
-$(eval $(call nf_add,IPT_IPOPT,CONFIG_NETFILTER_XT_MATCH_MAC, $(P_XT)xt_mac))
 $(eval $(call nf_add,IPT_IPOPT,CONFIG_IP_NF_MATCH_MARK, $(P_V4)ipt_mark))
 $(eval $(call nf_add,IPT_IPOPT,CONFIG_NETFILTER_XT_MATCH_MARK, $(P_XT)xt_mark))
-$(eval $(call nf_add,IPT_IPOPT,CONFIG_IP_NF_MATCH_MULTIPORT, $(P_V4)ipt_multiport))
-$(eval $(call nf_add,IPT_IPOPT,CONFIG_NETFILTER_XT_MATCH_MULTIPORT, $(P_XT)xt_multiport))
 $(eval $(call nf_add,IPT_IPOPT,CONFIG_NETFILTER_XT_MATCH_STATISTIC, $(P_XT)xt_statistic))
 $(eval $(call nf_add,IPT_IPOPT,CONFIG_IP_NF_MATCH_TCPMSS, $(P_V4)ipt_tcpmss))
 $(eval $(call nf_add,IPT_IPOPT,CONFIG_NETFILTER_XT_MATCH_TCPMSS, $(P_XT)xt_tcpmss))
 $(eval $(call nf_add,IPT_IPOPT,CONFIG_IP_NF_MATCH_TIME, $(P_V4)ipt_time))
 $(eval $(call nf_add,IPT_IPOPT,CONFIG_NETFILTER_XT_MATCH_TIME, $(P_XT)xt_time))
-$(eval $(call nf_add,IPT_IPOPT,CONFIG_IP_NF_MATCH_TOS, $(P_V4)ipt_tos))
 $(eval $(call nf_add,IPT_IPOPT,CONFIG_IP_NF_MATCH_TTL, $(P_V4)ipt_ttl))
 $(eval $(call nf_add,IPT_IPOPT,CONFIG_IP_NF_MATCH_UNCLEAN, $(P_V4)ipt_unclean))
 
@@ -111,10 +131,17 @@ $(eval $(call nf_add,IPT_IPOPT,CONFIG_IP_NF_TARGET_DSCP, $(P_V4)ipt_DSCP))
 $(eval $(call nf_add,IPT_IPOPT,CONFIG_IP_NF_TARGET_ECN, $(P_V4)ipt_ECN))
 $(eval $(call nf_add,IPT_IPOPT,CONFIG_IP_NF_TARGET_MARK, $(P_V4)ipt_MARK))
 $(eval $(call nf_add,IPT_IPOPT,CONFIG_NETFILTER_XT_TARGET_MARK, $(P_XT)xt_MARK))
-$(eval $(call nf_add,IPT_IPOPT,CONFIG_IP_NF_TARGET_TCPMSS, $(P_V4)ipt_TCPMSS))
-$(eval $(call nf_add,IPT_IPOPT,CONFIG_NETFILTER_XT_TARGET_TCPMSS, $(P_XT)xt_TCPMSS))
 $(eval $(call nf_add,IPT_IPOPT,CONFIG_IP_NF_TARGET_TTL, $(P_V4)ipt_TTL))
-$(eval $(call nf_add,IPT_IPOPT,CONFIG_IP_NF_TARGET_TOS, $(P_V4)ipt_TOS))
+
+# XXX: tos/TOS extensions have been merged in dscp/DSCP in linux 2.6.25, but not yet in iptables
+ifeq ($(strip $(call CompareKernelPatchVer,$(KERNEL_PATCHVER),ge,2.6.25)),1)
+  # userland only
+  $(eval $(if $(NF_KMOD),,$(call nf_add,IPT_IPOPT,CONFIG_NETFILTER_XT_MATCH_DSCP, $(P_XT)xt_tos)))
+  $(eval $(if $(NF_KMOD),,$(call nf_add,IPT_IPOPT,CONFIG_NETFILTER_XT_TARGET_DSCP, $(P_XT)xt_TOS)))
+else
+  $(eval $(call nf_add,IPT_IPOPT,CONFIG_IP_NF_MATCH_TOS, $(P_V4)ipt_tos))
+  $(eval $(call nf_add,IPT_IPOPT,CONFIG_IP_NF_TARGET_TOS, $(P_V4)ipt_TOS))
+endif
 
 
 # iprange
@@ -180,16 +207,20 @@ $(eval $(call nf_add,IPT_IPV6,CONFIG_IP6_NF_TARGET_ROUTE, $(P_V6)ip6t_ROUTE))
 
 # kernel only
 $(eval $(if $(NF_KMOD),$(call nf_add,IPT_NAT,CONFIG_IP_NF_NAT, $(P_V4)iptable_nat),))
-$(eval $(if $(NF_KMOD),$(call nf_add,IPT_NAT,CONFIG_NF_NAT,$(P_V4)nf_nat $(P_V4)iptable_nat),))
-# userland only
-$(eval $(if $(NF_KMOD),,$(call nf_add,IPT_NAT,CONFIG_IP_NF_NAT, $(P_V4)ipt_SNAT $(P_V4)ipt_DNAT)))
-$(eval $(if $(NF_KMOD),,$(call nf_add,IPT_NAT,CONFIG_NF_NAT, $(P_V4)ipt_SNAT $(P_V4)ipt_DNAT)))
+$(eval $(if $(NF_KMOD),$(call nf_add,IPT_NAT,CONFIG_NF_NAT, $(P_V4)nf_nat $(P_V4)iptable_nat),))
 
+# userland only
+$(eval $(if $(NF_KMOD),,$(call nf_add,IPT_NAT,CONFIG_NF_NAT, ipt_SNAT ipt_DNAT)))
+$(eval $(if $(NF_KMOD),,$(call nf_add,IPT_NAT,CONFIG_IP_NF_NAT, ipt_SNAT ipt_DNAT)))
 
 $(eval $(call nf_add,IPT_NAT,CONFIG_IP_NF_TARGET_MASQUERADE, $(P_V4)ipt_MASQUERADE))
-$(eval $(call nf_add,IPT_NAT,CONFIG_IP_NF_TARGET_MIRROR, $(P_V4)ipt_MIRROR))
-$(eval $(call nf_add,IPT_NAT,CONFIG_IP_NF_TARGET_NETMAP, $(P_V4)ipt_NETMAP))
-$(eval $(call nf_add,IPT_NAT,CONFIG_IP_NF_TARGET_REDIRECT, $(P_V4)ipt_REDIRECT))
+
+
+# nat-extra
+
+$(eval $(call nf_add,IPT_NAT_EXTRA,CONFIG_IP_NF_TARGET_MIRROR, $(P_V4)ipt_MIRROR))
+$(eval $(call nf_add,IPT_NAT_EXTRA,CONFIG_IP_NF_TARGET_NETMAP, $(P_V4)ipt_NETMAP))
+$(eval $(call nf_add,IPT_NAT_EXTRA,CONFIG_IP_NF_TARGET_REDIRECT, $(P_V4)ipt_REDIRECT))
 
 
 # nathelper
@@ -249,13 +280,9 @@ $(eval $(call nf_add,IPT_ULOG,CONFIG_IP_NF_TARGET_ULOG, $(P_V4)ipt_ULOG))
 
 
 # userland only
-IPT_BUILTIN := $(if $(NF_KMOD),,$(P_V4)ipt_standard)
-IPT_BUILTIN += $(if $(NF_KMOD),,$(P_V4)ipt_icmp $(P_V4)ipt_tcp $(P_V4)ipt_udp)
-
-IPT_BUILTIN += $(if $(NF_KMOD),,$(P_XT)xt_standard)
-IPT_BUILTIN += $(if $(NF_KMOD),,$(P_XT)xt_icmp $(P_XT)xt_tcp $(P_XT)xt_udp)
-
+IPT_BUILTIN += $(IPT_CORE-y) $(IPT_CORE-m)
 IPT_BUILTIN += $(IPT_CONNTRACK-y)
+IPT_BUILTIN += $(IPT_CONNTRACK_EXTRA-y)
 IPT_BUILTIN += $(IPT_EXTRA-y)
 IPT_BUILTIN += $(IPT_FILTER-y)
 IPT_BUILTIN += $(IPT_IMQ-y)
@@ -265,6 +292,7 @@ IPT_BUILTIN += $(IPT_IPSEC-y)
 IPT_BUILTIN += $(IPT_IPSET-y)
 IPT_BUILTIN += $(IPT_IPV6-y)
 IPT_BUILTIN += $(IPT_NAT-y)
+IPT_BUILTIN += $(IPT_NAT_EXTRA-y)
 IPT_BUILTIN += $(IPT_NATHELPER-y)
 IPT_BUILTIN += $(IPT_NATHELPER_EXTRA-y)
 IPT_BUILTIN += $(IPT_ULOG-y)
-- 
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