You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
107 lines
2.6 KiB
Bash
107 lines
2.6 KiB
Bash
#!/bin/sh
|
|
# 6rd.sh - IPv6-in-IPv4 tunnel backend
|
|
# Copyright (c) 2010-2012 OpenWrt.org
|
|
|
|
[ -n "$INCLUDE_ONLY" ] || {
|
|
. /lib/functions.sh
|
|
. /lib/functions/network.sh
|
|
. ../netifd-proto.sh
|
|
init_proto "$@"
|
|
}
|
|
|
|
proto_6rd_setup() {
|
|
local cfg="$1"
|
|
local iface="$2"
|
|
local link="6rd-$cfg"
|
|
|
|
local mtu df ttl tos ipaddr peeraddr ip6prefix ip6prefixlen ip4prefixlen tunlink zone
|
|
json_get_vars mtu df ttl tos ipaddr peeraddr ip6prefix ip6prefixlen ip4prefixlen tunlink zone
|
|
|
|
[ -z "$ip6prefix" -o -z "$peeraddr" ] && {
|
|
proto_notify_error "$cfg" "MISSING_ADDRESS"
|
|
proto_block_restart "$cfg"
|
|
return
|
|
}
|
|
|
|
( proto_add_host_dependency "$cfg" "$peeraddr" "$tunlink" )
|
|
|
|
[ -z "$ipaddr" ] && {
|
|
local wanif="$tunlink"
|
|
if [ -z $wanif ] && ! network_find_wan wanif; then
|
|
proto_notify_error "$cfg" "NO_WAN_LINK"
|
|
return
|
|
fi
|
|
|
|
if ! network_get_ipaddr ipaddr "$wanif"; then
|
|
proto_notify_error "$cfg" "NO_WAN_LINK"
|
|
return
|
|
fi
|
|
}
|
|
|
|
# Determine the relay prefix.
|
|
local ip4prefixlen="${ip4prefixlen:-0}"
|
|
local ip4prefix
|
|
eval "$(ipcalc.sh "$ipaddr/$ip4prefixlen")";ip4prefix=$NETWORK
|
|
|
|
# Determine our IPv6 address.
|
|
local ip6subnet=$(6rdcalc "$ip6prefix/$ip6prefixlen" "$ipaddr/$ip4prefixlen")
|
|
local ip6addr="${ip6subnet%%::*}::1"
|
|
|
|
# Determine the IPv6 prefix
|
|
local ip6lanprefix="$ip6subnet/$(($ip6prefixlen + 32 - $ip4prefixlen))"
|
|
|
|
proto_init_update "$link" 1
|
|
proto_add_ipv6_address "$ip6addr" "$ip6prefixlen"
|
|
proto_add_ipv6_prefix "$ip6lanprefix"
|
|
|
|
proto_add_ipv6_route "::" 0 "::$peeraddr" 4096 "" "$ip6addr/$ip6prefixlen"
|
|
proto_add_ipv6_route "::" 0 "::$peeraddr" 4096 "" "$ip6lanprefix"
|
|
|
|
proto_add_tunnel
|
|
json_add_string mode sit
|
|
json_add_int mtu "${mtu:-1280}"
|
|
json_add_boolean df "${df:-1}"
|
|
json_add_int ttl "${ttl:-64}"
|
|
[ -n "$tos" ] && json_add_string tos "$tos"
|
|
json_add_string local "$ipaddr"
|
|
[ -n "$tunlink" ] && json_add_string link "$tunlink"
|
|
|
|
json_add_object 'data'
|
|
json_add_string prefix "$ip6prefix/$ip6prefixlen"
|
|
json_add_string relay-prefix "$ip4prefix/$ip4prefixlen"
|
|
json_close_object
|
|
|
|
proto_close_tunnel
|
|
|
|
proto_add_data
|
|
[ -n "$zone" ] && json_add_string zone "$zone"
|
|
proto_close_data
|
|
|
|
proto_send_update "$cfg"
|
|
}
|
|
|
|
proto_6rd_teardown() {
|
|
local cfg="$1"
|
|
}
|
|
|
|
proto_6rd_init_config() {
|
|
no_device=1
|
|
available=1
|
|
|
|
proto_config_add_int "mtu"
|
|
proto_config_add_boolean "df"
|
|
proto_config_add_int "ttl"
|
|
proto_config_add_string "tos"
|
|
proto_config_add_string "ipaddr"
|
|
proto_config_add_string "peeraddr"
|
|
proto_config_add_string "ip6prefix"
|
|
proto_config_add_string "ip6prefixlen"
|
|
proto_config_add_string "ip4prefixlen"
|
|
proto_config_add_string "tunlink"
|
|
proto_config_add_string "zone"
|
|
}
|
|
|
|
[ -n "$INCLUDE_ONLY" ] || {
|
|
add_protocol 6rd
|
|
}
|