6in4: add netifd support
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31036 3c298f89-4303-0410-b956-a3cf2f4a3e73master
Felix Fietkau
parent
b2bd2e8cd5
commit
8634e64038
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@ -34,11 +34,20 @@ endef
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define Build/Configure
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endef
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define Package/6in4/install
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$(INSTALL_DIR) $(1)/lib/network
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$(INSTALL_DATA) ./files/6in4.sh $(1)/lib/network/6in4.sh
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ifneq ($(CONFIG_PACKAGE_netifd),)
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define Package/6in4/install
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$(INSTALL_DIR) $(1)/lib/netifd/proto
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$(INSTALL_BIN) ./files/6in4.sh $(1)/lib/netifd/proto/6in4.sh
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$(INSTALL_DIR) $(1)/etc/hotplug.d/iface
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$(INSTALL_DATA) ./files/6in4.hotplug $(1)/etc/hotplug.d/iface/90-6in4
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endef
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endef
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else
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define Package/6in4/install
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$(INSTALL_DIR) $(1)/lib/network
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$(INSTALL_DATA) ./files.old/6in4.sh $(1)/lib/network/6in4.sh
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$(INSTALL_DIR) $(1)/etc/hotplug.d/iface
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$(INSTALL_DATA) ./files.old/6in4.hotplug $(1)/etc/hotplug.d/iface/90-6in4
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endef
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endif
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$(eval $(call BuildPackage,6in4))
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@ -0,0 +1,68 @@
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#!/bin/sh
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if [ "$ACTION" = ifup ]; then
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. /etc/functions.sh
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include /lib/network
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scan_interfaces
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update_tunnel() {
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local cfg="$1"
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local proto
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config_get proto "$cfg" proto
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[ "$proto" = 6in4 ] || return 0
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local wandev
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config_get wandev "$cfg" wan_device "$(find_6in4_wanif)"
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[ "$wandev" = "$DEVICE" ] || return 0
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local wanip=$(find_6in4_wanip "$wandev")
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[ -n "$wanip" ] && {
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lsmod | grep -q ^sit || {
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logger -t 6in4-update "Tunneling driver not loaded yet, deferring action"
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exit 0
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}
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local tunnelid
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config_get tunnelid "$cfg" tunnelid
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local username
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config_get username "$cfg" username
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local password
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config_get password "$cfg" password
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uci_set_state network "$cfg" ipaddr "$wanip"
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[ -n "$tunnelid" ] && [ -n "$username" ] && [ -n "$password" ] && {
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[ "${#password}" == 32 -a -z "${password//[a-fA-F0-9]/}" ] || {
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password="$(echo -n "$password" | md5sum)"; password="${password%% *}"
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}
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(
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local url="http://ipv4.tunnelbroker.net/ipv4_end.php?ip=AUTO&apikey=$username&pass=$password&tid=$tunnelid"
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local try=0
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local max=3
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while [ $((++try)) -le $max ]; do
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wget -qO/dev/null "$url" 2>/dev/null && {
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logger -t 6in4-update "Updated tunnel #$tunnelid endpoint to $wanip"
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ifup "$cfg"
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break
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} || {
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logger -t 6in4-update "Try $try/$max failed, retrying"
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sleep 1
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}
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done
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)&
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} || {
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logger -t 6in4-update "Re-establishing tunnel due to change on $INTERFACE ($DEVICE)"
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ifup "$cfg" &
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}
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}
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}
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config_foreach update_tunnel interface
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fi
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@ -0,0 +1,104 @@
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# 6in4.sh - IPv6-in-IPv4 tunnel backend
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# Copyright (c) 2010 OpenWrt.org
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find_6in4_wanif() {
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local if=$(ip -4 r l e 0.0.0.0/0); if="${if#default* dev }"; if="${if%% *}"
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[ -n "$if" ] && grep -qs "^ *$if:" /proc/net/dev && echo "$if"
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}
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find_6in4_wanip() {
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local ip=$(ip -4 a s dev "$1"); ip="${ip#*inet }"
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echo "${ip%%[^0-9.]*}"
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}
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# Hook into scan_interfaces() to synthesize a .device option
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# This is needed for /sbin/ifup to properly dispatch control
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# to setup_interface_6in4() even if no .ifname is set in
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# the configuration.
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scan_6in4() {
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config_set "$1" device "6in4-$1"
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}
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coldplug_interface_6in4() {
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setup_interface_6in4 "6in4-$1" "$1"
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}
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setup_interface_6in4() {
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local iface="$1"
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local cfg="$2"
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local link="6in4-$cfg"
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local local4=$(uci_get network "$cfg" ipaddr)
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local remote4
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config_get remote4 "$cfg" peeraddr
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local local6
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config_get local6 "$cfg" ip6addr
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local mtu
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config_get mtu "$cfg" mtu
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local ttl
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config_get ttl "$cfg" ttl
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local metric
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config_get metric "$cfg" metric
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local defaultroute
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config_get_bool defaultroute "$cfg" defaultroute 1
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# If local4 is unset, guess local IPv4 address from the
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# interface used by the default route.
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[ -z "$local4" ] && {
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local wanif=$(find_6in4_wanif)
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[ -n "$wanif" ] && {
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local4=$(find_6in4_wanip "$wanif")
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uci_set_state network "$cfg" wan_device "$wanif"
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}
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}
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[ -n "$local4" ] && {
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# creating the tunnel below will trigger a net subsystem event
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# prevent it from touching or iface by disabling .auto here
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uci_set_state network "$cfg" ifname $link
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uci_set_state network "$cfg" auto 0
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ip tunnel add $link mode sit remote $remote4 local $local4 ttl ${ttl:-64}
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ip link set $link up
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ip link set mtu ${mtu:-1280} dev $link
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ip addr add $local6 dev $link
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uci_set_state network "$cfg" ipaddr $local4
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uci_set_state network "$cfg" ip6addr $local6
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[ "$defaultroute" = 1 ] && {
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ip -6 route add ::/0 ${metric:+metric $metric} dev $link
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uci_set_state network "$cfg" defaultroute 1
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}
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env -i ACTION="ifup" INTERFACE="$cfg" DEVICE="$link" PROTO=6in4 /sbin/hotplug-call "iface" &
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} || {
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echo "Cannot determine local IPv4 address for 6in4 tunnel $cfg - skipping"
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}
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}
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stop_interface_6in4() {
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local cfg="$1"
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local link="6in4-$cfg"
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local local6=$(uci_get_state network "$cfg" ip6addr)
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local defaultroute=$(uci_get_state network "$cfg" defaultroute)
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grep -qs "^ *$link:" /proc/net/dev && {
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env -i ACTION="ifdown" INTERFACE="$cfg" DEVICE="$link" PROTO=6in4 /sbin/hotplug-call "iface" &
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[ "$defaultroute" = "1" ] && {
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ip -6 route del ::/0 dev $link
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}
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ip addr del $local6 dev $link
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ip link set $link down
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ip tunnel del $link
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}
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}
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@ -3,6 +3,9 @@
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if [ "$ACTION" = ifup ]; then
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. /etc/functions.sh
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INCLUDE_ONLY=1
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. /lib/netifd/proto/6in4.sh
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include /lib/network
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scan_interfaces
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@ -19,49 +22,7 @@ if [ "$ACTION" = ifup ]; then
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local wanip=$(find_6in4_wanip "$wandev")
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[ -n "$wanip" ] && {
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lsmod | grep -q ^sit || {
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logger -t 6in4-update "Tunneling driver not loaded yet, deferring action"
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exit 0
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}
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local tunnelid
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config_get tunnelid "$cfg" tunnelid
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local username
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config_get username "$cfg" username
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local password
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config_get password "$cfg" password
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uci_set_state network "$cfg" ipaddr "$wanip"
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[ -n "$tunnelid" ] && [ -n "$username" ] && [ -n "$password" ] && {
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[ "${#password}" == 32 -a -z "${password//[a-fA-F0-9]/}" ] || {
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password="$(echo -n "$password" | md5sum)"; password="${password%% *}"
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}
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(
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local url="http://ipv4.tunnelbroker.net/ipv4_end.php?ip=AUTO&apikey=$username&pass=$password&tid=$tunnelid"
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local try=0
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local max=3
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while [ $((++try)) -le $max ]; do
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wget -qO/dev/null "$url" 2>/dev/null && {
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logger -t 6in4-update "Updated tunnel #$tunnelid endpoint to $wanip"
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ifup "$cfg"
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break
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} || {
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logger -t 6in4-update "Try $try/$max failed, retrying"
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sleep 1
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}
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done
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)&
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} || {
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logger -t 6in4-update "Re-establishing tunnel due to change on $INTERFACE ($DEVICE)"
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ifup "$cfg" &
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}
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}
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[ -n "$wanip" ] && ifup "$cfg"
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}
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config_foreach update_tunnel interface
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@ -1,6 +1,13 @@
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#!/bin/sh
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# 6in4.sh - IPv6-in-IPv4 tunnel backend
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# Copyright (c) 2010 OpenWrt.org
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[ -n "$INCLUDE_ONLY" ] || {
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. /etc/functions.sh
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. ../netifd-proto.sh
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init_proto "$@"
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}
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find_6in4_wanif() {
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local if=$(ip -4 r l e 0.0.0.0/0); if="${if#default* dev }"; if="${if%% *}"
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[ -n "$if" ] && grep -qs "^ *$if:" /proc/net/dev && echo "$if"
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@ -23,82 +30,109 @@ coldplug_interface_6in4() {
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setup_interface_6in4 "6in4-$1" "$1"
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}
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setup_interface_6in4() {
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local iface="$1"
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local cfg="$2"
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tun_error() {
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local cfg="$1"; shift;
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[ -n "$1" ] && proto_notify_error "$cfg" "$@"
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proto_block_restart "$cfg"
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}
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proto_6in4_setup() {
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local cfg="$1"
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local iface="$2"
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local link="6in4-$cfg"
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local local4=$(uci_get network "$cfg" ipaddr)
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json_get_var mtu mtu
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json_get_var ttl ttl
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json_get_var local4 ipaddr
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json_get_var remote4 peeraddr
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json_get_var ip6addr ip6addr
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json_get_var tunnelid tunnelid
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json_get_var username username
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json_get_var password password
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local remote4
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config_get remote4 "$cfg" peeraddr
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[ -z "$ip6addr" -o -z "$remote4" ] && {
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tun_error "$cfg" "MISSING_ADDRESS"
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return
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}
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local local6
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config_get local6 "$cfg" ip6addr
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local mtu
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config_get mtu "$cfg" mtu
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local ttl
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config_get ttl "$cfg" ttl
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local metric
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config_get metric "$cfg" metric
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local defaultroute
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config_get_bool defaultroute "$cfg" defaultroute 1
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# If local4 is unset, guess local IPv4 address from the
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# interface used by the default route.
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[ -z "$local4" ] && {
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local wanif=$(find_6in4_wanif)
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[ -n "$wanif" ] && {
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local4=$(find_6in4_wanip "$wanif")
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uci_set_state network "$cfg" wan_device "$wanif"
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[ -z "$wanif" ] && {
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tun_error "$cfg" "NO_WAN_LINK"
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return
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}
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. /lib/network/config.sh
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local wancfg="$(find_config "$wanif")"
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[ -z "$wancfg" ] && {
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tun_error "$cfg" "NO_WAN_LINK"
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return
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}
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# If local4 is unset, guess local IPv4 address from the
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# interface used by the default route.
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[ -n "$wanif" ] && local4=$(find_6in4_wanip "$wanif")
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[ -z "$local4" ] && {
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tun_error "$cfg" "NO_WAN_LINK"
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return
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}
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}
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[ -n "$local4" ] && {
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# creating the tunnel below will trigger a net subsystem event
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# prevent it from touching or iface by disabling .auto here
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uci_set_state network "$cfg" ifname $link
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uci_set_state network "$cfg" auto 0
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local local6="${ip6addr%%/*}"
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local mask6="${ip6addr##*/}"
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[[ "$local6" = "$mask6" ]] && mask6=
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ip tunnel add $link mode sit remote $remote4 local $local4 ttl ${ttl:-64}
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ip link set $link up
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ip link set mtu ${mtu:-1280} dev $link
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ip addr add $local6 dev $link
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proto_init_update "$link" 1
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proto_add_ipv6_address "$local6" "$mask6"
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proto_add_ipv6_route "::" 0
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uci_set_state network "$cfg" ipaddr $local4
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uci_set_state network "$cfg" ip6addr $local6
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proto_add_tunnel
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json_add_string mode sit
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json_add_int mtu "${mtu:-1280}"
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json_add_int ttl "${ttl:-64}"
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json_add_string local "$local4"
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json_add_string remote "$remote4"
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proto_close_tunnel
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[ "$defaultroute" = 1 ] && {
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ip -6 route add ::/0 ${metric:+metric $metric} dev $link
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uci_set_state network "$cfg" defaultroute 1
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proto_send_update "$cfg"
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[ -n "$tunnelid" -a -n "$username" -a -n "$password" ] && {
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[ "${#password}" == 32 -a -z "${password//[a-fA-F0-9]/}" ] || {
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password="$(echo -n "$password" | md5sum)"; password="${password%% *}"
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}
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env -i ACTION="ifup" INTERFACE="$cfg" DEVICE="$link" PROTO=6in4 /sbin/hotplug-call "iface" &
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} || {
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echo "Cannot determine local IPv4 address for 6in4 tunnel $cfg - skipping"
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local url="http://ipv4.tunnelbroker.net/ipv4_end.php?ip=AUTO&apikey=$username&pass=$password&tid=$tunnelid"
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local try=0
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local max=3
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while [ $((++try)) -le $max ]; do
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wget -qO/dev/null "$url" 2>/dev/null && break
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sleep 1
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done
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}
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}
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stop_interface_6in4() {
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proto_6in4_teardown() {
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local cfg="$1"
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local link="6in4-$cfg"
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local local6=$(uci_get_state network "$cfg" ip6addr)
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local defaultroute=$(uci_get_state network "$cfg" defaultroute)
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grep -qs "^ *$link:" /proc/net/dev && {
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env -i ACTION="ifdown" INTERFACE="$cfg" DEVICE="$link" PROTO=6in4 /sbin/hotplug-call "iface" &
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[ "$defaultroute" = "1" ] && {
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ip -6 route del ::/0 dev $link
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}
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ip addr del $local6 dev $link
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ip link set $link down
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ip tunnel del $link
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}
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}
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proto_6in4_init_config() {
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no_device=1
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available=1
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proto_config_add_string "ipaddr"
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proto_config_add_string "ip6addr"
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proto_config_add_string "peeraddr"
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proto_config_add_string "tunnelid"
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proto_config_add_string "username"
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proto_config_add_string "password"
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proto_config_add_int "mtu"
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proto_config_add_int "ttl"
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}
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[ -n "$INCLUDE_ONLY" ] || {
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add_protocol 6in4
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}
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