107 lines
2.8 KiB
Bash
Executable File
107 lines
2.8 KiB
Bash
Executable File
#!/bin/sh
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#
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# $FreeBSD$
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#
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# PROVIDE: localnet
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# REQUIRE: dhcp6c
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# BEFORE: named
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# KEYWORD: shutdown
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#
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# The purpose of this script is to generate various ISP prefix dependent files.
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#
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# Specifically, the DNS (BIND) acls file for handling various views, a local ISP
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# range address for the router itself (on a dedicated loopback device), and
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# attach any static addresses for this machine to another loopback device.
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. ${RC_ROUTER_HARNESS}/etc/rc.subr
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name='localnet'
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extra_commands="rebuild_zoneinfo"
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start_cmd='localnet_start'
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stop_cmd='localnet_stop'
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rebuild_zoneinfo_cmd="localnet_build_zoneinfo"
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rcvar='localnet_enable'
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load_rc_config 'localnet'
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localnet_build_zoneinfo()
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{
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compute_addrs
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localnet_build_zoneinfo_impl
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}
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localnet_build_zoneinfo_impl()
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{
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#build_zoneinfo ${isp_prefix} 31 ${router_conf_dir}/namedb/local-machines.defs
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build_zoneinfo ${isp_prefix} ${localnet_generated_zone_subnet} ${rc_router_conf_dir}/namedb/local-machines.defs > ${rc_router_gen_dir}/zone.${localnet_generated_zone}
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}
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localnet_build_acls()
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{
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gen_acls_dir=${rc_router_gen_dir}/namedb
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mkdir -p ${gen_acls_dir}
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cat ${rc_router_dir}/templates/named.acls.conf \
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| sed \
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-e "s/@ISP_PREFIX@/${isp_prefix}/g" \
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-e "s/@ULA_PREFIX@/${secret_ip6_net}/g" \
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> ${gen_acls_dir}/acls.conf
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}
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compute_addrs() {
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loop=0
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while [ -z "${v6addr}" -a ${loop} -lt 5 ]
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do
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[ ${loop} -ne 0 ] && sleep 5
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# todo: Adjust our ipv6 hint... get from a var?
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v6addr=$(ifconfig ${localnet_first_nic} | grep "inet6 [23]...:" | head -1 | awk '{print $2}')
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echo "V6 addr is: ${v6addr}"
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loop=$(( ${loop} + 1 ))
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done
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echo "V6 addr is: ${v6addr}"
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three_quads=$(echo ${v6addr} | awk -F ':' '{print $1":"$2":"$3}')
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echo "First three quads are: ${three_quads}"
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last_quad=$(echo ${v6addr} | awk -F ':' '{print $4}')
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echo "Last quad is: ${last_quad}"
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last_prefix=$(echo ${last_quad} | rev | awk '{print $1"0000"}' | cut -c 3,4 | rev | sed -e 's/^0//')
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echo "Last prefix is: ${last_prefix}"
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isp_prefix="${three_quads}:${last_prefix}"
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base_addr=" inet6 ${isp_prefix}ff::1"
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}
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localnet_start() {
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cp ${rc_router_conf_dir}/resolv.conf.master ${rc_router_conf_dir}/resolv.conf
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compute_addrs
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ifconfig lo1 create ${base_addr} prefer_source
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# DO NOT USE prefer_source for this address...
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# It will cause confusion for the wireguard tunnels underneath...
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# It also could cause DNS recursion to fail -- routing as the nested
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# connections...
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localnet_build_acls
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if [ `option_selected ${localnet_build_zoneinfo}` = "YES" ]
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then
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localnet_build_zoneinfo_impl
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fi
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}
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localnet_stop() {
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compute_addrs
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ifconfig lo0 ${base_addr} delete
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ifconfig lo1 destroy
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}
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run_rc_command "$1"
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# vim: ft=bash
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