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mirror of git://projects.qi-hardware.com/openwrt-xburst.git synced 2024-12-24 18:50:49 +02:00

[package] 6in4:

- support to automatically determine the local endpoint address from the current IPv4 default gateway
	- support updating the tunnel endpoint for he.net


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@21612 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
jow 2010-05-28 22:03:30 +00:00
parent 98e5d71d12
commit 8c69d5f95c
3 changed files with 89 additions and 19 deletions

View File

@ -8,7 +8,7 @@
include $(TOPDIR)/rules.mk
PKG_NAME:=6in4
PKG_VERSION:=1
PKG_VERSION:=2
PKG_RELEASE:=1
include $(INCLUDE_DIR)/package.mk
@ -36,6 +36,8 @@ endef
define Package/6in4/install
$(INSTALL_DIR) $(1)/lib/network
$(INSTALL_DATA) ./files/6in4.sh $(1)/lib/network/6in4.sh
$(INSTALL_DIR) $(1)/etc/hotplug.d/iface
$(INSTALL_DATA) ./files/6in4.hotplug $(1)/etc/hotplug.d/iface/90-6in4
endef
$(eval $(call BuildPackage,6in4))

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@ -0,0 +1,44 @@
#!/bin/sh
if [ "$ACTION" = ifup ]; then
. /etc/functions.sh
include /lib/network
scan_interfaces
update_tunnel() {
local cfg="$1"
local proto
config_get proto "$cfg" proto
[ "$proto" = 6in4 ] || return 0
local wandev
config_get wandev "$cfg" wan_device
[ "$wandev" = "$DEVICE" ] || return 0
local oldip
local wanip=$(find_6in4_wanip "$wandev")
config_get oldip "$cfg" ipaddr
[ -n "$wanip" ] && [ "$oldip" != "$wanip" ] && {
local tunnelid
config_get tunnelid "$cfg" tunnelid
local username
config_get username "$cfg" username
local password
config_get password "$cfg" password
[ -n "$tunnelid" ] && [ -n "$username" ] && [ -n "$password" ] && {
password="$(echo -n "$password" | md5sum)"; password="${password%% *}"
uci_set_state network "$cfg" ipaddr "$wanip"
( wget -qO/dev/null "http://ipv4.tunnelbroker.net/ipv4_end.php?ipv4b=AUTO&user_id=$username&pass=$password&tunnel_id=$tunnelid" && ifup "$cfg" )&
}
}
}
config_foreach update_tunnel interface
fi

View File

@ -1,6 +1,16 @@
# 6in4.sh - IPv6-in-IPv4 tunnel backend
# Copyright (c) 2010 OpenWrt.org
find_6in4_wanif() {
local if=$(ip -4 r l e 0/0); if="${if#default via * dev }"; if="${if%% *}"
[ -n "$if" ] && grep -qs "^ *$if:" /proc/net/dev && echo "$if"
}
find_6in4_wanip() {
local ip=$(ip -4 a s dev "$1"); ip="${ip#*inet }"
echo "${ip%%/[0-9]* brd *}"
}
# Hook into scan_interfaces() to synthesize a .device option
# This is needed for /sbin/ifup to properly dispatch control
# to setup_interface_6in4() even if no .ifname is set in
@ -36,26 +46,40 @@ setup_interface_6in4() {
local defaultroute
config_get_bool defaultroute "$cfg" defaultroute 1
# creating the tunnel below will trigger a net subsystem event
# prevent it from touching or iface by disabling .auto here
uci_set_state network "$cfg" ifname $link
uci_set_state network "$cfg" auto 0
ip tunnel add $link mode sit remote $remote4 local $local4 ttl 255
ip link set $link up
ip link set mtu ${mtu:-1280} dev $link
ip tunnel change $link ttl ${ttl:-64}
ip addr add $local6 dev $link
uci_set_state network "$cfg" ip6addr $local6
[ "$defaultroute" = 1 ] && {
ip -6 route add ::/0 dev $link
uci_set_state network "$cfg" defaultroute 1
# If local4 is unset, guess local IPv4 address from the
# interface used by the default route.
[ -z "$local4" ] && {
local wanif=$(find_6in4_wanif)
[ -n "$wanif" ] && {
local4=$(find_6in4_wanip "$wanif")
uci_set_state network "$cfg" wan_device "$wanif"
}
}
env -i ACTION="ifup" INTERFACE="$cfg" DEVICE="$link" PROTO=6in4 /sbin/hotplug-call "iface" &
[ -n "$local4" ] && {
# creating the tunnel below will trigger a net subsystem event
# prevent it from touching or iface by disabling .auto here
uci_set_state network "$cfg" ifname $link
uci_set_state network "$cfg" auto 0
ip tunnel add $link mode sit remote $remote4 local $local4 ttl 255
ip link set $link up
ip link set mtu ${mtu:-1280} dev $link
ip tunnel change $link ttl ${ttl:-64}
ip addr add $local6 dev $link
uci_set_state network "$cfg" ipaddr $local4
uci_set_state network "$cfg" ip6addr $local6
[ "$defaultroute" = 1 ] && {
ip -6 route add ::/0 dev $link
uci_set_state network "$cfg" defaultroute 1
}
env -i ACTION="ifup" INTERFACE="$cfg" DEVICE="$link" PROTO=6in4 /sbin/hotplug-call "iface" &
} || {
echo "Cannot determine local IPv4 address for 6in4 tunnel $cfg - skipping"
}
}
stop_interface_6in4() {