mirror of https://github.com/hak5/openwrt.git
81 lines
1.9 KiB
Bash
81 lines
1.9 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 ttl ipaddr peeraddr ip6prefix ip6prefixlen ip4prefixlen
|
||
|
|
json_get_vars mtu ttl ipaddr peeraddr ip6prefix ip6prefixlen ip4prefixlen
|
||
|
|
|
||
|
|
[ -z "$ip6prefix" -o -z "$peeraddr" ] && {
|
||
|
|
proto_notify_error "$cfg" "MISSING_ADDRESS"
|
||
|
|
proto_block_restart "$cfg"
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
( proto_add_host_dependency "$cfg" 0.0.0.0 )
|
||
|
|
|
||
|
|
[ -z "$ipaddr" ] && {
|
||
|
|
local wanif
|
||
|
|
if ! network_find_wan wanif || ! network_get_ipaddr ipaddr "$wanif"; then
|
||
|
|
proto_notify_error "$cfg" "NO_WAN_LINK"
|
||
|
|
return
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|
||
|
|
# Determine the relay prefix.
|
||
|
|
local ip4prefixlen="${ip4prefixlen:-0}"
|
||
|
|
local ip4prefix=$(ipcalc.sh "$ipaddr/$ip4prefixlen" | grep NETWORK)
|
||
|
|
ip4prefix="${ip4prefix#NETWORK=}"
|
||
|
|
|
||
|
|
# Determine our IPv6 address.
|
||
|
|
local ip6subnet=$(6rdcalc "$ip6prefix/$ip6prefixlen" "$ipaddr/$ip4prefixlen")
|
||
|
|
local ip6addr="${ip6subnet%%::*}::1"
|
||
|
|
|
||
|
|
proto_init_update "$link" 1
|
||
|
|
proto_add_ipv6_address "$ip6addr" "$ip6prefixlen"
|
||
|
|
proto_add_ipv6_route "::" 0 "::$peeraddr"
|
||
|
|
|
||
|
|
proto_add_tunnel
|
||
|
|
json_add_string mode sit
|
||
|
|
json_add_int mtu "${mtu:-1280}"
|
||
|
|
json_add_int ttl "${ttl:-64}"
|
||
|
|
json_add_string local "$ipaddr"
|
||
|
|
json_add_string 6rd-prefix "$ip6prefix/$ip6prefixlen"
|
||
|
|
json_add_string 6rd-relay-prefix "$ip4prefix/$ip4prefixlen"
|
||
|
|
proto_close_tunnel
|
||
|
|
|
||
|
|
proto_send_update "$cfg"
|
||
|
|
}
|
||
|
|
|
||
|
|
proto_6rd_teardown() {
|
||
|
|
local cfg="$1"
|
||
|
|
}
|
||
|
|
|
||
|
|
proto_6rd_init_config() {
|
||
|
|
no_device=1
|
||
|
|
available=1
|
||
|
|
|
||
|
|
proto_config_add_int "mtu"
|
||
|
|
proto_config_add_int "ttl"
|
||
|
|
proto_config_add_string "ipaddr"
|
||
|
|
proto_config_add_string "peeraddr"
|
||
|
|
proto_config_add_string "ip6prefix"
|
||
|
|
proto_config_add_string "ip6prefixlen"
|
||
|
|
proto_config_add_string "ip4prefixlen"
|
||
|
|
}
|
||
|
|
|
||
|
|
[ -n "$INCLUDE_ONLY" ] || {
|
||
|
|
add_protocol 6rd
|
||
|
|
}
|