diff options
Diffstat (limited to 'package/6in4/files/6in4.sh')
| -rwxr-xr-x | package/6in4/files/6in4.sh | 146 |
1 files changed, 90 insertions, 56 deletions
diff --git a/package/6in4/files/6in4.sh b/package/6in4/files/6in4.sh index 5f8dfffe57..14748ebd10 100755 --- a/package/6in4/files/6in4.sh +++ b/package/6in4/files/6in4.sh @@ -1,6 +1,13 @@ +#!/bin/sh # 6in4.sh - IPv6-in-IPv4 tunnel backend # Copyright (c) 2010 OpenWrt.org +[ -n "$INCLUDE_ONLY" ] || { + . /etc/functions.sh + . ../netifd-proto.sh + init_proto "$@" +} + 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" @@ -23,82 +30,109 @@ 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) +tun_error() { + local cfg="$1"; shift; - local remote4 - config_get remote4 "$cfg" peeraddr + [ -n "$1" ] && proto_notify_error "$cfg" "$@" + proto_block_restart "$cfg" +} - local local6 - config_get local6 "$cfg" ip6addr +proto_6in4_setup() { + local cfg="$1" + local iface="$2" + local link="6in4-$cfg" - local mtu - config_get mtu "$cfg" mtu + json_get_var mtu mtu + json_get_var ttl ttl + json_get_var local4 ipaddr + json_get_var remote4 peeraddr + json_get_var ip6addr ip6addr + json_get_var tunnelid tunnelid + json_get_var username username + json_get_var password password + + [ -z "$ip6addr" -o -z "$remote4" ] && { + tun_error "$cfg" "MISSING_ADDRESS" + return + } - local ttl - config_get ttl "$cfg" ttl + [ -z "$local4" ] && { + local wanif=$(find_6in4_wanif) + [ -z "$wanif" ] && { + tun_error "$cfg" "NO_WAN_LINK" + return + } - local metric - config_get metric "$cfg" metric + . /lib/network/config.sh + local wancfg="$(find_config "$wanif")" + [ -z "$wancfg" ] && { + tun_error "$cfg" "NO_WAN_LINK" + return + } - local defaultroute - config_get_bool defaultroute "$cfg" defaultroute 1 + # If local4 is unset, guess local IPv4 address from the + # interface used by the default route. + [ -n "$wanif" ] && local4=$(find_6in4_wanip "$wanif") - # 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 "$wanif" + [ -z "$local4" ] && { + tun_error "$cfg" "NO_WAN_LINK" + return } } - [ -n "$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 + local local6="${ip6addr%%/*}" + local mask6="${ip6addr##*/}" + [[ "$local6" = "$mask6" ]] && mask6= + + proto_init_update "$link" 1 + proto_add_ipv6_address "$local6" "$mask6" + proto_add_ipv6_route "::" 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 $link + proto_add_tunnel + json_add_string mode sit + json_add_int mtu "${mtu:-1280}" + json_add_int ttl "${ttl:-64}" + json_add_string local "$local4" + json_add_string remote "$remote4" + proto_close_tunnel - uci_set_state network "$cfg" ipaddr $local4 - uci_set_state network "$cfg" ip6addr $local6 + proto_send_update "$cfg" - [ "$defaultroute" = 1 ] && { - ip -6 route add ::/0 ${metric:+metric $metric} dev $link - uci_set_state network "$cfg" defaultroute 1 + [ -n "$tunnelid" -a -n "$username" -a -n "$password" ] && { + [ "${#password}" == 32 -a -z "${password//[a-fA-F0-9]/}" ] || { + password="$(echo -n "$password" | md5sum)"; password="${password%% *}" } - env -i ACTION="ifup" INTERFACE="$cfg" DEVICE="$link" PROTO=6in4 /sbin/hotplug-call "iface" & - } || { - echo "Cannot determine local IPv4 address for 6in4 tunnel $cfg - skipping" + local url="http://ipv4.tunnelbroker.net/ipv4_end.php?ip=AUTO&apikey=$username&pass=$password&tid=$tunnelid" + local try=0 + local max=3 + + while [ $((++try)) -le $max ]; do + wget -qO/dev/null "$url" 2>/dev/null && break + sleep 1 + done } } -stop_interface_6in4() { +proto_6in4_teardown() { 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 - } +proto_6in4_init_config() { + no_device=1 + available=1 + + proto_config_add_string "ipaddr" + proto_config_add_string "ip6addr" + proto_config_add_string "peeraddr" + proto_config_add_string "tunnelid" + proto_config_add_string "username" + proto_config_add_string "password" + proto_config_add_int "mtu" + proto_config_add_int "ttl" +} - ip addr del $local6 dev $link - ip link set $link down - ip tunnel del $link - } +[ -n "$INCLUDE_ONLY" ] || { + add_protocol 6in4 } |