diff options
author | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2012-03-19 21:10:04 +0000 |
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committer | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2012-03-19 21:10:04 +0000 |
commit | 5fe04db16c68069745b6ace80b4e0f01e1e553c0 (patch) | |
tree | 9e6d435125d75e64d7845f2ab45c52549b476bc1 /package/6in4/files.old/6in4.sh | |
parent | 97d7f20d53ebd7b9865d9232dc18eb8770768dc9 (diff) |
6in4: add netifd support
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31036 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'package/6in4/files.old/6in4.sh')
-rwxr-xr-x | package/6in4/files.old/6in4.sh | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/package/6in4/files.old/6in4.sh b/package/6in4/files.old/6in4.sh new file mode 100755 index 0000000000..5f8dfffe57 --- /dev/null +++ b/package/6in4/files.old/6in4.sh @@ -0,0 +1,104 @@ +# 6in4.sh - IPv6-in-IPv4 tunnel backend +# Copyright (c) 2010 OpenWrt.org + +find_6in4_wanif() { + local if=$(ip -4 r l e 0.0.0.0/0); if="${if#default* 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.]*}" +} + +# 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 +# the configuration. +scan_6in4() { + config_set "$1" device "6in4-$1" +} + +coldplug_interface_6in4() { + setup_interface_6in4 "6in4-$1" "$1" +} + +setup_interface_6in4() { + local iface="$1" + local cfg="$2" + local link="6in4-$cfg" + + local local4=$(uci_get network "$cfg" ipaddr) + + local remote4 + config_get remote4 "$cfg" peeraddr + + local local6 + config_get local6 "$cfg" ip6addr + + local mtu + config_get mtu "$cfg" mtu + + local ttl + config_get ttl "$cfg" ttl + + local metric + config_get metric "$cfg" metric + + local defaultroute + config_get_bool defaultroute "$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 "$wanif" + } + } + + [ -n "$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 ${ttl:-64} + ip link set $link up + ip link set mtu ${mtu:-1280} dev $link + 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 ${metric:+metric $metric} 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() { + local cfg="$1" + local link="6in4-$cfg" + + local local6=$(uci_get_state network "$cfg" ip6addr) + local defaultroute=$(uci_get_state network "$cfg" defaultroute) + + grep -qs "^ *$link:" /proc/net/dev && { + env -i ACTION="ifdown" INTERFACE="$cfg" DEVICE="$link" PROTO=6in4 /sbin/hotplug-call "iface" & + + [ "$defaultroute" = "1" ] && { + ip -6 route del ::/0 dev $link + } + + ip addr del $local6 dev $link + ip link set $link down + ip tunnel del $link + } +} |