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gluon-radv-filterd: migrate to nftables

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This commit is contained in:
Maciej Krüger 2023-05-01 19:34:51 +02:00
parent e6a8cda992
commit b9f86e1d83
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3 changed files with 16 additions and 4 deletions
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2
package/gluon-radv-filterd/Makefile
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@ -6,7 +6,7 @@ include ../gluon.mk
define Package/gluon-radv-filterd define Package/gluon-radv-filterd
TITLE:=Filter IPv6 router advertisements TITLE:=Filter IPv6 router advertisements
DEPENDS:=+gluon-ebtables +libgluonutil +libbatadv +libnl-tiny DEPENDS:=+gluon-nftables +libgluonutil +libbatadv +libnl-tiny
endef endef
MAKE_VARS += \ MAKE_VARS += \

3
package/gluon-radv-filterd/luasrc/lib/gluon/ebtables/400-radv-filterd
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@ -1,3 +0,0 @@
chain('RADV_FILTER', 'DROP')
rule 'FORWARD -p IPv6 -i bat0 --ip6-protocol ipv6-icmp --ip6-icmp-type router-advertisement -j RADV_FILTER'
rule 'RADV_FILTER -j ACCEPT'

15
package/gluon-radv-filterd/luasrc/lib/gluon/nftables/400-radv-filterd.lua Normal file
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@ -0,0 +1,15 @@
bridge_table('pre', [[set radv_allow {
type ether_addr
}
set radv_filter {
type ether_addr
}
]])
-- This rule starts filtering once the address is in radv_filter
-- Daemon adds 00:00:../ff:ff:.. to radv_filter (todo) so everything gets picked up,
-- effectivly turning radv_filter into a bool
bridge_rule('FORWARD', 'ether saddr @radv_filter iifname "bat0" icmpv6 type nd-router-advert ether saddr != @radv_allow drop')