+++ /dev/null
-#!/bin/sh
-# Copyright (C) 2006-2011 OpenWrt.org
-
-# DEBUG="echo"
-
-. /lib/functions/service.sh
-
-do_sysctl() {
- [ -n "$2" ] && \
- sysctl -n -e -w "$1=$2" >/dev/null || \
- sysctl -n -e "$1"
-}
-
-map_sysctls() {
- local cfg="$1"
- local ifn="$2"
-
- local fam
- for fam in ipv4 ipv6; do
- if [ -d /proc/sys/net/$fam ]; then
- local key
- for key in /proc/sys/net/$fam/*/$ifn/*; do
- local val
- config_get val "$cfg" "${fam}_${key##*/}"
- [ -n "$val" ] && echo -n "$val" > "$key"
- done
- fi
- done
-}
-
-find_config() {
- local iftype device iface ifaces ifn
- for ifn in $interfaces; do
- config_get iftype "$ifn" type
- config_get iface "$ifn" ifname
- case "$iftype" in
- bridge) config_get ifaces "$ifn" ifnames;;
- esac
- config_get device "$ifn" device
- for ifc in $device $iface $ifaces; do
- [ ."$ifc" = ."$1" ] && {
- echo "$ifn"
- return 0
- }
- done
- done
-
- return 1;
-}
-
-fixup_interface() {
- local iftype ifname device proto
- local __cfg="$1"
-
- config_get iftype "$__cfg" TYPE
- case "$iftype" in
- interface)
- append interfaces "$__cfg"
- config_get proto "$__cfg" proto
- config_get iftype "$__cfg" type
- config_get ifname "$__cfg" ifname
- config_get device "$__cfg" device "$ifname"
- config_set "$__cfg" device "$device"
- case "$iftype" in
- bridge)
- config_set "$__cfg" ifnames "$device"
- config_set "$__cfg" ifname br-"$CONFIG_SECTION"
- ;;
- esac
- ( type "scan_$proto" ) >/dev/null 2>/dev/null && eval "scan_$proto '$__cfg'"
- ;;
- esac
-}
-
-scan_interfaces() {
- local cfgfile="${1:-network}"
- interfaces=
- config_cb() {
- case "$1" in
- interface)
- config_set "$2" auto 1
- ;;
- esac
- fixup_interface "$CONFIG_SECTION"
- }
- config_load "${cfgfile}"
-}
-
-add_vlan() {
- local vif="${1%\.*}"
-
- [ "$1" = "$vif" ] || ifconfig "$1" >/dev/null 2>/dev/null || {
- ifconfig "$vif" up 2>/dev/null >/dev/null || add_vlan "$vif"
- $DEBUG vconfig set_name_type DEV_PLUS_VID_NO_PAD
- $DEBUG vconfig add "$vif" "${1##*\.}"
- return 0
- }
- return 1
-}
-
-# add dns entries if they are not in resolv.conf yet
-add_dns() {
- local cfg="$1"; shift
-
- remove_dns "$cfg"
-
- # We may be called by pppd's ip-up which has a nonstandard umask set.
- # Create an empty file here and force its permission to 0644, otherwise
- # dnsmasq will not be able to re-read the resolv.conf.auto .
- [ ! -f /tmp/resolv.conf.auto ] && {
- touch /tmp/resolv.conf.auto
- chmod 0644 /tmp/resolv.conf.auto
- }
-
- local dns
- local add
- for dns in "$@"; do
- grep -qsE "^nameserver ${dns//./\\.}$" /tmp/resolv.conf.auto || {
- add="${add:+$add }$dns"
- echo "nameserver $dns" >> /tmp/resolv.conf.auto
- }
- done
-
- [ -n "$cfg" ] && {
- uci_toggle_state network "$cfg" dns "$add"
- uci_toggle_state network "$cfg" resolv_dns "$add"
- }
-}
-
-# remove dns entries of the given iface
-remove_dns() {
- local cfg="$1"
-
- [ -n "$cfg" ] && {
- [ -f /tmp/resolv.conf.auto ] && {
- local dns=$(uci_get_state network "$cfg" resolv_dns)
- for dns in $dns; do
- sed -i -e "/^nameserver ${dns//./\\.}$/d" /tmp/resolv.conf.auto
- done
- }
-
- uci_revert_state network "$cfg" dns
- uci_revert_state network "$cfg" resolv_dns
- }
-}
-
-# sort the device list, drop duplicates
-sort_list() {
- local arg="$*"
- (
- for item in $arg; do
- echo "$item"
- done
- ) | sort -u
-}
-
-prepare_interface_bridge() {
- return 0
-}
-
-# Create the interface, if necessary.
-# Return status 0 indicates that the setup_interface() call should continue
-# Return status 1 means that everything is set up already.
-
-prepare_interface() {
- local iface="$1"
- local config="$2"
- local macaddr="$3"
-
- # if we're called for the bridge interface itself, don't bother trying
- # to create any interfaces here. The scripts have already done that, otherwise
- # the bridge interface wouldn't exist.
- [ "br-$config" = "$iface" -o -e "$iface" ] && return 0;
-
- ifconfig "$iface" 2>/dev/null >/dev/null && {
- local proto
- config_get proto "$config" proto
-
- # make sure the interface is removed from any existing bridge and deconfigured,
- # (deconfigured only if the interface is not set to proto=none)
- unbridge "$iface"
-
- local mtu macaddr txqueuelen
- config_get mtu "$config" mtu
- [ -n "$macaddr" ] || config_get macaddr "$config" macaddr
- config_get txqueuelen "$config" txqueuelen
- [ -n "$macaddr" ] && $DEBUG ifconfig "$iface" down
- $DEBUG ifconfig "$iface" ${macaddr:+hw ether "$macaddr"} ${mtu:+mtu $mtu} ${txqueuelen:+txqueuelen $txqueuelen} up
-
- [ "$proto" = none ] || ifconfig "$iface" 0.0.0.0
-
- # Apply sysctl settings
- map_sysctls "$config" "$iface"
- }
-
- # Setup VLAN interfaces
- add_vlan "$iface" && return 1
- ifconfig "$iface" 2>/dev/null >/dev/null || return 0
-
- # Setup bridging
- local iftype
- config_get iftype "$config" type
- case "$iftype" in
- bridge)
- local macaddr
- config_get macaddr "$config" macaddr
- [ -x /usr/sbin/brctl ] && {
- ifconfig "br-$config" 2>/dev/null >/dev/null && {
- local newdevs devices
- config_get devices "$config" device
- for dev in $(sort_list "$devices" "$iface"); do
- append newdevs "$dev"
- done
- uci_toggle_state network "$config" device "$newdevs"
- $DEBUG ifconfig "$iface" 0.0.0.0
- $DEBUG do_sysctl "net.ipv6.conf.$iface.disable_ipv6" 1
- $DEBUG brctl addif "br-$config" "$iface"
- # Bridge existed already. No further processing necesary
- } || {
- local stp igmp_snooping
- config_get_bool stp "$config" stp 0
- config_get_bool igmp_snooping "$config" igmp_snooping 1
- $DEBUG brctl addbr "br-$config"
- $DEBUG brctl setfd "br-$config" 0
- $DEBUG ifconfig "$iface" 0.0.0.0
- $DEBUG do_sysctl "net.ipv6.conf.$iface.disable_ipv6" 1
- $DEBUG brctl addif "br-$config" "$iface"
- $DEBUG brctl stp "br-$config" $stp
- [ -z "$macaddr" ] && macaddr="$(cat /sys/class/net/$iface/address)"
- [ -e /sys/devices/virtual/net/br-$config/bridge/multicast_snooping ] && \
- echo $igmp_snooping > /sys/devices/virtual/net/br-$config/bridge/multicast_snooping
- $DEBUG ifconfig "br-$config" hw ether $macaddr up
- # Creating the bridge here will have triggered a hotplug event, which will
- # result in another setup_interface() call, so we simply stop processing
- # the current event at this point.
- }
- ifconfig "$iface" ${macaddr:+hw ether "${macaddr}"} up 2>/dev/null >/dev/null
- return 1
- }
- ;;
- esac
- return 0
-}
-
-set_interface_ifname() {
- local config="$1"
- local ifname="$2"
-
- local device
- config_get device "$1" device
- uci_toggle_state network "$config" ifname "$ifname"
- uci_toggle_state network "$config" device "$device"
-}
-
-setup_interface_none() {
- env -i ACTION="ifup" INTERFACE="$2" DEVICE="$1" PROTO=none /sbin/hotplug-call "iface" &
-}
-
-setup_interface_static() {
- local iface="$1"
- local config="$2"
-
- local ipaddr netmask ip6addr
- config_get ipaddr "$config" ipaddr
- config_get netmask "$config" netmask
- config_get ip6addr "$config" ip6addr
- [ -z "$ipaddr" -o -z "$netmask" ] && [ -z "$ip6addr" ] && return 1
-
- local gateway ip6gw dns bcast metric
- config_get gateway "$config" gateway
- config_get ip6gw "$config" ip6gw
- config_get dns "$config" dns
- config_get bcast "$config" broadcast
- config_get metric "$config" metric
-
- case "$ip6addr" in
- */*) ;;
- *:*) ip6addr="$ip6addr/64" ;;
- esac
-
- [ -z "$ipaddr" ] || $DEBUG ifconfig "$iface" "$ipaddr" netmask "$netmask" broadcast "${bcast:-+}"
- [ -z "$ip6addr" ] || $DEBUG ifconfig "${iface%:*}" add "$ip6addr"
- [ -z "$gateway" ] || $DEBUG route add default gw "$gateway" ${metric:+metric $metric} dev "$iface"
- [ -z "$ip6gw" ] || $DEBUG route -A inet6 add default gw "$ip6gw" ${metric:+metric $metric} dev "${iface%:*}"
- [ -z "$dns" ] || add_dns "$config" $dns
-
- config_get type "$config" TYPE
- [ "$type" = "alias" ] && return 0
-
- env -i ACTION="ifup" INTERFACE="$config" DEVICE="$iface" PROTO=static /sbin/hotplug-call "iface" &
-}
-
-setup_interface_alias() {
- local config="$1"
- local parent="$2"
- local iface="$3"
-
- local cfg
- config_get cfg "$config" interface
- [ "$parent" == "$cfg" ] || return 0
-
- # parent device and ifname
- local p_device p_type
- config_get p_device "$cfg" device
- config_get p_type "$cfg" type
-
- # select alias ifname
- local layer use_iface
- config_get layer "$config" layer 2
- case "$layer:$p_type" in
- # layer 3: e.g. pppoe-wan or pptp-vpn
- 3:*) use_iface="$iface" ;;
-
- # layer 2 and parent is bridge: e.g. br-wan
- 2:bridge) use_iface="br-$cfg" ;;
-
- # layer 1: e.g. eth0 or ath0
- *) use_iface="$p_device" ;;
- esac
-
- # alias counter
- local ctr
- config_get ctr "$parent" alias_count 0
- ctr="$(($ctr + 1))"
- config_set "$parent" alias_count "$ctr"
-
- # alias list
- local list
- config_get list "$parent" aliases
- append list "$config"
- config_set "$parent" aliases "$list"
-
- use_iface="$use_iface:$ctr"
- set_interface_ifname "$config" "$use_iface"
-
- local proto
- config_get proto "$config" proto "static"
- case "${proto}" in
- static)
- setup_interface_static "$use_iface" "$config"
- ;;
- *)
- echo "Unsupported type '$proto' for alias config '$config'"
- return 1
- ;;
- esac
-}
-
-setup_interface() {
- local iface="$1"
- local config="$2"
- local proto="$3"
- local vifmac="$4"
-
- [ -n "$config" ] || {
- config=$(find_config "$iface")
- [ "$?" = 0 ] || return 1
- }
-
- prepare_interface "$iface" "$config" "$vifmac" || return 0
-
- [ "$iface" = "br-$config" ] && {
- # need to bring up the bridge and wait a second for
- # it to switch to the 'forwarding' state, otherwise
- # it will lose its routes...
- ifconfig "$iface" up
- sleep 1
- }
-
- # Interface settings
- set_interface_ifname "$config" "$iface"
-
- [ -n "$proto" ] || config_get proto "$config" proto
- case "$proto" in
- static)
- setup_interface_static "$iface" "$config"
- ;;
- dhcp)
- # kill running udhcpc instance
- local pidfile="/var/run/dhcp-${iface}.pid"
-
- SERVICE_PID_FILE="$pidfile" \
- service_stop /sbin/udhcpc
-
- local ipaddr netmask hostname proto1 clientid vendorid broadcast reqopts
- config_get ipaddr "$config" ipaddr
- config_get netmask "$config" netmask
- config_get hostname "$config" hostname
- config_get proto1 "$config" proto
- config_get clientid "$config" clientid
- config_get vendorid "$config" vendorid
- config_get_bool broadcast "$config" broadcast 0
- config_get reqopts "$config" reqopts
-
- [ -z "$ipaddr" ] || \
- $DEBUG ifconfig "$iface" "$ipaddr" ${netmask:+netmask "$netmask"}
-
- # additional request options
- local opt dhcpopts daemonize
- for opt in $reqopts; do
- append dhcpopts "-O $opt"
- done
-
- # don't stay running in background if dhcp is not the main proto on the interface (e.g. when using pptp)
- [ "$proto1" != "$proto" ] && {
- append dhcpopts "-n -q"
- } || {
- append dhcpopts "-O rootpath -R"
- daemonize=1
- }
- [ "$broadcast" = 1 ] && broadcast="-O broadcast" || broadcast=
-
- SERVICE_DAEMONIZE=$daemonize \
- SERVICE_PID_FILE="$pidfile" \
- service_start /sbin/udhcpc -t 0 -i "$iface" \
- ${ipaddr:+-r $ipaddr} \
- ${hostname:+-H $hostname} \
- ${clientid:+-c $clientid} \
- ${vendorid:+-V $vendorid} \
- -b -p "$pidfile" $broadcast \
- ${dhcpopts}
- ;;
- none)
- setup_interface_none "$iface" "$config"
- ;;
- *)
- if ( eval "type setup_interface_$proto" ) >/dev/null 2>/dev/null; then
- eval "setup_interface_$proto '$iface' '$config' '$proto'"
- else
- echo "Interface type $proto not supported."
- return 1
- fi
- ;;
- esac
-}
-
-stop_interface_dhcp() {
- local config="$1"
-
- local ifname
- config_get ifname "$config" ifname
-
- local lock="/var/lock/dhcp-${ifname}"
- [ -f "$lock" ] && lock -u "$lock"
-
- remove_dns "$config"
-
- SERVICE_PID_FILE="/var/run/dhcp-${ifname}.pid" \
- service_stop /sbin/udhcpc
-
- uci -P /var/state revert "network.$config"
-}
-
-unbridge() {
- local dev="$1"
- local brdev
-
- [ -x /usr/sbin/brctl ] || return 0
- brctl show 2>/dev/null | grep "$dev" >/dev/null && {
- # interface is still part of a bridge, correct that
-
- for brdev in $(brctl show | awk '$2 ~ /^[0-9].*\./ { print $1 }'); do
- brctl delif "$brdev" "$dev" 2>/dev/null >/dev/null
- do_sysctl "net.ipv6.conf.$dev.disable_ipv6" 0
- done
- }
-}
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