openwrt/package/network/config/ipip/files/ipip.sh

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#!/bin/sh
[ -n "$INCLUDE_ONLY" ] || {
. /lib/functions.sh
. /lib/functions/network.sh
. ../netifd-proto.sh
init_proto "$@"
}
proto_ipip_setup() {
local cfg="$1"
local remoteip
local df ipaddr peeraddr tunlink ttl tos zone mtu
json_get_vars df ipaddr peeraddr tunlink ttl tos zone mtu
[ -z "$peeraddr" ] && {
proto_notify_error "$cfg" "MISSING_PEER_ADDRESS"
proto_block_restart "$cfg"
return
}
remoteip=$(resolveip -t 10 -4 "$peeraddr")
if [ -z "$remoteip" ]; then
proto_notify_error "$cfg" "PEER_RESOLVE_FAIL"
return
fi
for ip in $remoteip; do
peeraddr=$ip
break
done
( 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
}
[ -z "$zone" ] && zone="wan"
proto_init_update "ipip-$cfg" 1
proto_add_tunnel
json_add_string mode "ipip"
json_add_int mtu "${mtu:-1280}"
json_add_int ttl "${ttl:-64}"
[ -n "$tos" ] && json_add_string tos "$tos"
json_add_string local "$ipaddr"
json_add_string remote "$peeraddr"
[ -n "$tunlink" ] && json_add_string link "$tunlink"
json_add_boolean df "${df:-1}"
proto_close_tunnel
proto_add_data
[ -n "$zone" ] && json_add_string zone "$zone"
proto_close_data
proto_send_update "$cfg"
}
proto_ipip_teardown() {
local cfg="$1"
}
proto_ipip_init_config() {
no_device=1
available=1
proto_config_add_int "mtu"
proto_config_add_int "ttl"
proto_config_add_string "tos"
proto_config_add_string "tunlink"
proto_config_add_string "zone"
proto_config_add_string "ipaddr"
proto_config_add_string "peeraddr"
proto_config_add_boolean "df"
}
[ -n "$INCLUDE_ONLY" ] || {
add_protocol ipip
}