mirror of
https://git.openwrt.org/openwrt/openwrt.git
synced 2025-12-10 08:44:39 +01:00
a660a076db
odhcp6c and odhcpd currently generate custom DUIDS on a per-interface basis using the MAC address of the given interface. This is contrary to how DUIDs are meant to be used, as the client identifier will vary from interface to interface, while it is meant to remain stable for a given host, no matter how the network hardware changes (see RFC8415, §11). The same problem exists in odhcpd, which also generates server-side DUIDs on a per-interface basis. In order to support a stable per-device DUID, generate one on first boot and store it via uci. Currently, a DUID-UUID style clientid is generated. This is mostly meant as an RFC, and we might consider using a different kind of DUID instead (DUID-LLT, DUID-EN). One drawback is that this will typically change the DUID used on existing OpenWrt devices when upgrading to a new release. However, that seems unavoidable and is a one-time pain in order to have stable DUIDs (and in many cases, it shouldn't cause any issues). v2: move the uci cfg generation outside of an IPv6-only block since this is relevant to the DHCPv4 client as well Signed-off-by: David Härdeman <david@hardeman.nu> Link: https://github.com/openwrt/openwrt/pull/20359 Signed-off-by: Robert Marko <robimarko@gmail.com>
550 lines
12 KiB
Bash
Executable file
550 lines
12 KiB
Bash
Executable file
#!/bin/sh
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CFG=/etc/board.json
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. /usr/share/libubox/jshn.sh
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. /lib/functions/ipv4.sh
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[ -s $CFG ] || /bin/board_detect || exit 1
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[ -s /etc/config/network -a -s /etc/config/system ] && exit 0
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generate_bridge() {
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local name=$1
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local macaddr=$2
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uci -q batch <<-EOF
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set network.$name=device
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set network.$name.name=$name
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set network.$name.type=bridge
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EOF
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if [ -n "$macaddr" ]; then
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uci -q batch <<-EOF
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set network.$name.macaddr=$macaddr
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EOF
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fi
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}
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bridge_vlan_id=0
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generate_bridge_vlan() {
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local name=$1_vlan
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local device=$2
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local ports="$3"
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local vlan="$4"
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uci -q batch <<-EOF
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set network.$name=bridge-vlan
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set network.$name.device='$device'
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set network.$name.vlan='$vlan'
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set network.$name.ports='$ports'
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EOF
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}
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generate_static_network() {
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uci -q batch <<-EOF
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delete network.loopback
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set network.loopback='interface'
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set network.loopback.device='lo'
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set network.loopback.proto='static'
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add_list network.loopback.ipaddr='127.0.0.1/8'
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delete network.globals
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set network.globals='globals'
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set network.globals.dhcp_default_duid='auto'
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EOF
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[ -e /proc/sys/net/ipv6 ] && {
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uci -q batch <<-EOF
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set network.globals.ula_prefix='auto'
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EOF
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}
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if json_is_a dsl object; then
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json_select dsl
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if json_is_a atmbridge object; then
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json_select atmbridge
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local vpi vci encaps payload nameprefix
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json_get_vars vpi vci encaps payload nameprefix
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uci -q batch <<-EOF
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delete network.atm
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set network.atm='atm-bridge'
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set network.atm.vpi='$vpi'
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set network.atm.vci='$vci'
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set network.atm.encaps='$encaps'
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set network.atm.payload='$payload'
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set network.atm.nameprefix='$nameprefix'
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EOF
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json_select ..
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fi
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if json_is_a modem object; then
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json_select modem
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local type annex firmware tone xfer_mode
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json_get_vars type annex firmware tone xfer_mode
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uci -q batch <<-EOF
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delete network.dsl
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set network.dsl='dsl'
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set network.dsl.annex='$annex'
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set network.dsl.firmware='$firmware'
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set network.dsl.tone='$tone'
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set network.dsl.xfer_mode='$xfer_mode'
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EOF
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json_select ..
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fi
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json_select ..
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fi
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}
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addr_offset=2
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generate_network() {
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local ports device macaddr protocol type ipaddr netmask vlan
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local bridge=$2
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json_select network
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json_select "$1"
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json_get_vars device macaddr metric protocol ipaddr netmask vlan
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json_get_values ports ports
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json_select ..
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json_select ..
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[ -n "$device" -o -n "$ports" ] || return
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# Force bridge for "lan" as it may have other devices (e.g. wireless)
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# bridged
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[ "$1" = "lan" -a -z "$ports" ] && {
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ports="$device"
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}
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[ -n "$ports" -a -z "$bridge" ] && {
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uci -q batch <<-EOF
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add network device
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set network.@device[-1].name='br-$1'
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set network.@device[-1].type='bridge'
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EOF
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for port in $ports; do uci add_list network.@device[-1].ports="$port"; done
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[ -n "$macaddr" ] && {
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for port in $ports; do
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uci -q batch <<-EOF
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add network device
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set network.@device[-1].name='$port'
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set network.@device[-1].macaddr='$macaddr'
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EOF
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done
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}
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device=br-$1
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type=
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macaddr=""
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}
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[ -n "$bridge" ] && {
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[ -z "$ports" ] && ports="$device"
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if [ -z "$vlan" ]; then
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bridge_vlan_id=$((bridge_vlan_id + 1))
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vlan=$bridge_vlan_id
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fi
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generate_bridge_vlan $1 $bridge "$ports" $vlan
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device=$bridge.$vlan
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type=""
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}
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if [ -n "$macaddr" ]; then
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uci -q batch <<-EOF
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add network device
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set network.@device[-1].name='$device'
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set network.@device[-1].macaddr='$macaddr'
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EOF
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fi
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uci -q batch <<-EOF
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delete network.$1
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set network.$1='interface'
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set network.$1.type='$type'
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set network.$1.device='$device'
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set network.$1.metric='$metric'
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set network.$1.proto='none'
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EOF
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case "$protocol" in
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static)
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local ipad netm prefix
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case "$1" in
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lan) ipad=${ipaddr:-"192.168.1.1"} ;;
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*) ipad=${ipaddr:-"192.168.$((addr_offset++)).1"} ;;
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esac
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netm=${netmask:-"255.255.255.0"}
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str2ip netm "$netm"
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netmask2prefix prefix "$netm"
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uci -q batch <<-EOF
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set network.$1.proto='static'
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add_list network.$1.ipaddr='$ipad/$prefix'
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EOF
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[ -e /proc/sys/net/ipv6 ] && uci set network.$1.ip6assign='60'
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;;
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dhcp)
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# fixup IPv6 slave interface if parent is a bridge
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[ "$type" = "bridge" ] && device="br-$1"
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uci set network.$1.proto='dhcp'
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[ -e /proc/sys/net/ipv6 ] && {
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uci -q batch <<-EOF
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delete network.${1}6
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set network.${1}6='interface'
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set network.${1}6.device='$device'
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set network.${1}6.proto='dhcpv6'
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EOF
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}
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;;
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pppoe)
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uci -q batch <<-EOF
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set network.$1.proto='pppoe'
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set network.$1.username='username'
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set network.$1.password='password'
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EOF
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[ -e /proc/sys/net/ipv6 ] && {
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uci -q batch <<-EOF
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set network.$1.ipv6='1'
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delete network.${1}6
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set network.${1}6='interface'
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set network.${1}6.device='@${1}'
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set network.${1}6.proto='dhcpv6'
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EOF
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}
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;;
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ncm|\
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qmi|\
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mbim)
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uci -q batch <<-EOF
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set network.$1.proto='${protocol}'
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set network.$1.pdptype='ipv4'
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EOF
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;;
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esac
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}
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generate_switch_vlans_ports() {
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local switch="$1"
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local port ports role roles num attr val
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#
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# autogenerate vlans
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#
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if json_is_a roles array; then
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json_get_keys roles roles
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json_select roles
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for role in $roles; do
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json_select "$role"
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json_get_vars ports
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json_select ..
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uci -q batch <<-EOF
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add network switch_vlan
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set network.@switch_vlan[-1].device='$switch'
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set network.@switch_vlan[-1].vlan='$role'
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set network.@switch_vlan[-1].ports='$ports'
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EOF
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done
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json_select ..
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fi
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#
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# write port specific settings
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#
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if json_is_a ports array; then
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json_get_keys ports ports
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json_select ports
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for port in $ports; do
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json_select "$port"
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json_get_vars num
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if json_is_a attr object; then
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json_get_keys attr attr
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json_select attr
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uci -q batch <<-EOF
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add network switch_port
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set network.@switch_port[-1].device='$switch'
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set network.@switch_port[-1].port=$num
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EOF
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for attr in $attr; do
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json_get_var val "$attr"
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uci -q set network.@switch_port[-1].$attr="$val"
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done
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json_select ..
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fi
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json_select ..
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done
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json_select ..
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fi
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}
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generate_switch() {
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local key="$1"
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local vlans
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json_select switch
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json_select "$key"
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json_get_vars enable reset blinkrate cpu_port \
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ar8xxx_mib_type ar8xxx_mib_poll_interval
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uci -q batch <<-EOF
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add network switch
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set network.@switch[-1].name='$key'
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set network.@switch[-1].reset='$reset'
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set network.@switch[-1].enable_vlan='$enable'
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set network.@switch[-1].blinkrate='$blinkrate'
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set network.@switch[-1].ar8xxx_mib_type='$ar8xxx_mib_type'
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set network.@switch[-1].ar8xxx_mib_poll_interval='$ar8xxx_mib_poll_interval'
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EOF
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generate_switch_vlans_ports "$1"
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json_select ..
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json_select ..
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}
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generate_static_system() {
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uci -q batch <<-EOF
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delete system.@system[0]
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add system system
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set system.@system[-1].hostname='OpenWrt'
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set system.@system[-1].timezone='GMT0'
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set system.@system[-1].zonename='UTC'
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set system.@system[-1].ttylogin='0'
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set system.@system[-1].log_size='128'
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set system.@system[-1].urandom_seed='0'
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delete system.ntp
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set system.ntp='timeserver'
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set system.ntp.enabled='1'
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set system.ntp.enable_server='0'
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add_list system.ntp.server='0.openwrt.pool.ntp.org'
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add_list system.ntp.server='1.openwrt.pool.ntp.org'
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add_list system.ntp.server='2.openwrt.pool.ntp.org'
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add_list system.ntp.server='3.openwrt.pool.ntp.org'
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EOF
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if json_is_a system object; then
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json_select system
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local hostname
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if json_get_var hostname hostname; then
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uci -q set "system.@system[-1].hostname=$hostname"
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fi
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local compat_version
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if json_get_var compat_version compat_version; then
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uci -q set "system.@system[-1].compat_version=$compat_version"
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else
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uci -q set "system.@system[-1].compat_version=1.0"
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fi
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local timezone
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if json_get_var timezone timezone; then
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uci -q set "system.@system[-1].timezone=$timezone"
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fi
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if json_is_a ntpserver array; then
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local keys key
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json_get_keys keys ntpserver
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json_select ntpserver
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uci -q delete "system.ntp.server"
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for key in $keys; do
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local server
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if json_get_var server "$key"; then
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uci -q add_list "system.ntp.server=$server"
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fi
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done
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json_select ..
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fi
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json_select ..
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fi
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}
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generate_rssimon() {
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local key="$1"
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local cfg="rssid_$key"
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local refresh threshold
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json_select rssimon
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json_select "$key"
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json_get_vars refresh threshold
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json_select ..
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json_select ..
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uci -q batch <<-EOF
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delete system.$cfg
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set system.$cfg='rssid'
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set system.$cfg.dev='$key'
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set system.$cfg.refresh='$refresh'
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set system.$cfg.threshold='$threshold'
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EOF
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}
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generate_led() {
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local key="$1"
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local cfg="led_$key"
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json_select led
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json_select "$key"
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json_get_vars name sysfs type trigger default
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uci -q batch <<-EOF
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delete system.$cfg
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set system.$cfg='led'
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set system.$cfg.name='$name'
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set system.$cfg.sysfs='$sysfs'
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set system.$cfg.trigger='$trigger'
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set system.$cfg.default='$default'
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EOF
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case "$type" in
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gpio)
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local gpio inverted
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json_get_vars gpio inverted
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uci -q batch <<-EOF
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set system.$cfg.trigger='gpio'
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set system.$cfg.gpio='$gpio'
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set system.$cfg.inverted='$inverted'
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EOF
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;;
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netdev)
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local device mode
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json_get_vars device mode
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uci -q batch <<-EOF
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set system.$cfg.trigger='netdev'
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set system.$cfg.mode='$mode'
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set system.$cfg.dev='$device'
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EOF
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;;
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usb)
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local device
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json_get_vars device
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uci -q batch <<-EOF
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set system.$cfg.trigger='usbdev'
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set system.$cfg.interval='50'
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set system.$cfg.dev='$device'
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EOF
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;;
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usbport)
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local ports port
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json_get_values ports ports
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uci set system.$cfg.trigger='usbport'
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for port in $ports; do
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uci add_list system.$cfg.port=$port
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done
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;;
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rssi)
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local iface minq maxq offset factor
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json_get_vars iface minq maxq offset factor
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uci -q batch <<-EOF
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set system.$cfg.trigger='rssi'
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set system.$cfg.iface='rssid_$iface'
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set system.$cfg.minq='$minq'
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set system.$cfg.maxq='$maxq'
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set system.$cfg.offset='$offset'
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set system.$cfg.factor='$factor'
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EOF
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;;
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switch)
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local port_mask speed_mask mode
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json_get_vars port_mask speed_mask mode
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uci -q batch <<-EOF
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set system.$cfg.port_mask='$port_mask'
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set system.$cfg.speed_mask='$speed_mask'
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set system.$cfg.mode='$mode'
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EOF
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;;
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portstate)
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local port_state
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json_get_vars port_state
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uci -q batch <<-EOF
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set system.$cfg.port_state='$port_state'
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EOF
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;;
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timer|oneshot)
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local delayon delayoff
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json_get_vars delayon delayoff
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uci -q batch <<-EOF
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set system.$cfg.trigger='$type'
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set system.$cfg.delayon='$delayon'
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set system.$cfg.delayoff='$delayoff'
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EOF
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;;
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esac
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json_select ..
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json_select ..
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}
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generate_gpioswitch() {
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local cfg="$1"
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json_select gpioswitch
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json_select "$cfg"
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local name pin default
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json_get_vars name pin default
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uci -q batch <<-EOF
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delete system.$cfg
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set system.$cfg='gpio_switch'
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set system.$cfg.name='$name'
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set system.$cfg.gpio_pin='$pin'
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set system.$cfg.value='$default'
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EOF
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json_select ..
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json_select ..
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}
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json_init
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json_load "$(cat ${CFG})"
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umask 077
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if [ ! -s /etc/config/network ]; then
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bridge_name=""
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touch /etc/config/network
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generate_static_network
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json_get_vars bridge
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[ -n "$bridge" ] && {
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json_select bridge
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json_get_vars name macaddr
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generate_bridge "$name" "$macaddr"
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json_select ..
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bridge_name=$name
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}
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json_get_keys keys network
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for key in $keys; do generate_network $key $bridge_name; done
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json_get_keys keys switch
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for key in $keys; do generate_switch $key; done
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fi
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if [ ! -s /etc/config/system ]; then
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touch /etc/config/system
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generate_static_system
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json_get_keys keys rssimon
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for key in $keys; do generate_rssimon $key; done
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json_get_keys keys gpioswitch
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for key in $keys; do generate_gpioswitch $key; done
|
|
|
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json_get_keys keys led
|
|
for key in $keys; do generate_led $key; done
|
|
fi
|
|
uci commit
|