bcp38: moved to packages-feed
Signed-off-by: Steven Barth <steven@midlink.org>
This commit is contained in:
Steven Barth
parent
f81ddf4067
commit
a3c7351b07
4 changed files with 0 additions and 195 deletions
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#
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# Copyright (C) 2014 OpenWrt.org
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#
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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# Please note this is not an officially released version of bcp38
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include $(TOPDIR)/rules.mk
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PKG_NAME:=bcp38
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PKG_VERSION:=4
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PKG_RELEASE:=1
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PKG_LICENSE:=GPL-2.0
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include $(INCLUDE_DIR)/package.mk
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define Package/bcp38
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SECTION:=net
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CATEGORY:=Network
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SUBMENU:=Routing and Redirection
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TITLE:=BCP38 compliance
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URL:=http://www.github.com/dtaht/bcp38
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MAINTAINER:=Dave Taht <d+bcp38@taht.net>
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DEPENDS:=+ipset
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endef
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define Package/bcp38/description
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bcp38 implements rfc bcp 38 for home routers.
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endef
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define Package/bcp38/conffiles
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/etc/config/bcp38
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endef
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define Build/Prepare
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endef
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define Build/Configure
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endef
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define Build/Compile
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endef
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define Package/bcp38/install
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$(INSTALL_DIR) $(1)/etc/config
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$(INSTALL_CONF) ./files/bcp38.config $(1)/etc/config/bcp38
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$(INSTALL_DIR) $(1)/usr/lib/bcp38
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$(INSTALL_BIN) ./files/run.sh $(1)/usr/lib/bcp38/run.sh
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$(INSTALL_DIR) $(1)/etc/uci-defaults
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$(INSTALL_BIN) ./files/bcp38.defaults $(1)/etc/uci-defaults/bcp38
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endef
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define Package/bcp38/postinst
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#!/bin/sh
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[ -x /etc/uci-defaults/bcp38 ] && /etc/uci-defaults/bcp38 || exit 0
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endef
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define Package/bcp38/postrm
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#!/bin/sh
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uci delete firewall.bcp38
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uci commit
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endef
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$(eval $(call BuildPackage,bcp38))
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config bcp38
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option enabled 1
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option interface 'ge00'
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option detect_upstream 1
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list match '127.0.0.0/8'
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list match '0.0.0.0/8' # RFC 1700
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list match '240.0.0.0/4' # RFC 5745
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list match '192.0.2.0/24' # RFC 5737
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list match '198.51.100.0/24' # RFC 5737
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list match '203.0.113.0/24' # RFC 5737
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list match '192.168.0.0/16' # RFC 1918
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list match '10.0.0.0/8' # RFC 1918
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list match '172.16.0.0/12' # RFC 1918
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list match '169.254.0.0/16' # RFC 3927
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# list nomatch '172.26.0.0/21' # Example of something not to match
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# There is a dhcp trigger to do this for the netmask of a
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# double natted connection needed
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# I will argue that this level of indirection doesn't scale
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# very well - see how to block china as an example
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# http://www.okean.com/china.txt
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#!/bin/sh
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uci -q batch <<-EOT
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delete firewall.bcp38
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set firewall.bcp38=include
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set firewall.bcp38.type=script
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set firewall.bcp38.path=/usr/lib/bcp38/run.sh
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set firewall.bcp38.family=IPv4
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set firewall.bcp38.reload=1
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commit firewall
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EOT
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exit 0
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#!/bin/sh
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STOP=$1
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IPSET_NAME=bcp38-ipv4
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IPTABLES_CHAIN=BCP38
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. /lib/functions.sh
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config_load bcp38
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add_bcp38_rule()
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{
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local subnet="$1"
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local action="$2"
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if [ "$action" == "nomatch" ]; then
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ipset add "$IPSET_NAME" "$subnet" nomatch
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else
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ipset add "$IPSET_NAME" "$subnet"
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fi
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}
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detect_upstream()
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{
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local interface="$1"
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subnets=$(ip route show dev "$interface" | grep 'scope link' | awk '{print $1}')
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for subnet in $subnets; do
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# ipset test doesn't work for subnets, so strip out the subnet part
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# and test for that; add as exception if there's a match
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addr=$(echo $subnet | sed 's|/[0-9]\+$||')
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ipset test "$IPSET_NAME" $addr 2>/dev/null && add_bcp38_rule $subnet nomatch
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done
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}
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run() {
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local section="$1"
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local enabled
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local interface
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local detect_upstream
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config_get_bool enabled "$section" enabled 0
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config_get interface "$section" interface
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config_get detect_upstream "$section" detect_upstream
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if [ "$enabled" -eq "1" -a -n "$interface" -a -z "$STOP" ] ; then
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setup_ipset
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setup_iptables "$interface"
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config_list_foreach "$section" match add_bcp38_rule match
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config_list_foreach "$section" nomatch add_bcp38_rule nomatch
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[ "$detect_upstream" -eq "1" ] && detect_upstream "$interface"
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fi
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exit 0
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}
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setup_ipset()
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{
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ipset create "$IPSET_NAME" hash:net family ipv4
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ipset flush "$IPSET_NAME"
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}
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setup_iptables()
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{
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local interface="$1"
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iptables -N "$IPTABLES_CHAIN" 2>/dev/null
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iptables -F "$IPTABLES_CHAIN" 2>/dev/null
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iptables -I output_rule -j "$IPTABLES_CHAIN"
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iptables -I input_rule -j "$IPTABLES_CHAIN"
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iptables -I forwarding_rule -j "$IPTABLES_CHAIN"
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# always accept DHCP traffic
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iptables -A "$IPTABLES_CHAIN" -p udp --dport 67:68 --sport 67:68 -j RETURN
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iptables -A "$IPTABLES_CHAIN" -o "$interface" -m set --match-set "$IPSET_NAME" dst -j REJECT --reject-with icmp-net-unreachable
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iptables -A "$IPTABLES_CHAIN" -i "$interface" -m set --match-set "$IPSET_NAME" src -j DROP
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}
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destroy_ipset()
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{
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ipset flush "$IPSET_NAME" 2>/dev/null
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ipset destroy "$IPSET_NAME" 2>/dev/null
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}
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destroy_iptables()
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{
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iptables -D output_rule -j "$IPTABLES_CHAIN" 2>/dev/null
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iptables -D input_rule -j "$IPTABLES_CHAIN" 2>/dev/null
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iptables -D forwarding_rule -j "$IPTABLES_CHAIN" 2>/dev/null
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iptables -F "$IPTABLES_CHAIN" 2>/dev/null
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iptables -X "$IPTABLES_CHAIN" 2>/dev/null
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}
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destroy_iptables
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destroy_ipset
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config_foreach run bcp38
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exit 0
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