OpenWrt – Rev 1
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#!/bin/sh
[ -n "$INCLUDE_ONLY" ] || {
. /lib/functions.sh
. /lib/functions/network.sh
. ../netifd-proto.sh
init_proto "$@"
}
gre_generic_setup() {
local cfg="$1"
local mode="$2"
local local="$3"
local remote="$4"
local link="$5"
local mtu ttl tos zone ikey okey icsum ocsum iseqno oseqno multicast
json_get_vars mtu ttl tos zone ikey okey icsum ocsum iseqno oseqno multicast
[ -z "$multicast" ] && multicast=1
proto_init_update "$link" 1
proto_add_tunnel
json_add_string mode "$mode"
json_add_int mtu "${mtu:-1280}"
[ -n "$df" ] && json_add_boolean df "$df"
[ -n "$ttl" ] && json_add_int ttl "$ttl"
[ -n "$tos" ] && json_add_string tos "$tos"
json_add_boolean multicast "$multicast"
json_add_string local "$local"
json_add_string remote "$remote"
[ -n "$tunlink" ] && json_add_string link "$tunlink"
json_add_object 'data'
[ -n "$ikey" ] && json_add_int ikey "$ikey"
[ -n "$okey" ] && json_add_int okey "$okey"
[ -n "$icsum" ] && json_add_boolean icsum "$icsum"
[ -n "$ocsum" ] && json_add_boolean ocsum "$ocsum"
[ -n "$iseqno" ] && json_add_boolean iseqno "$iseqno"
[ -n "$oseqno" ] && json_add_boolean oseqno "$oseqno"
[ -n "$encaplimit" ] && json_add_string encaplimit "$encaplimit"
json_close_object
proto_close_tunnel
proto_add_data
[ -n "$zone" ] && json_add_string zone "$zone"
proto_close_data
proto_send_update "$cfg"
}
gre_setup() {
local cfg="$1"
local mode="$2"
local remoteip
local ipaddr peeraddr
json_get_vars df ipaddr peeraddr tunlink
[ -z "$peeraddr" ] && {
proto_notify_error "$cfg" "MISSING_PEER_ADDRESS"
proto_block_restart "$cfg"
exit
}
remoteip=$(resolveip -t 10 -4 "$peeraddr")
if [ -z "$remoteip" ]; then
proto_notify_error "$cfg" "PEER_RESOLVE_FAIL"
exit
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"
exit
fi
if ! network_get_ipaddr ipaddr "$wanif"; then
proto_notify_error "$cfg" "NO_WAN_LINK"
exit
fi
}
[ -z "$df" ] && df="1"
case "$mode" in
gretapip)
gre_generic_setup $cfg $mode $ipaddr $peeraddr "gre4t-$cfg"
;;
*)
gre_generic_setup $cfg $mode $ipaddr $peeraddr "gre4-$cfg"
;;
esac
}
proto_gre_setup() {
local cfg="$1"
gre_setup $cfg "greip"
}
proto_gretap_setup() {
local cfg="$1"
local network
json_get_vars network
gre_setup $cfg "gretapip"
json_init
json_add_string name "gre4t-$cfg"
json_add_boolean link-ext 0
json_close_object
for i in $network; do
ubus call network.interface."$i" add_device "$(json_dump)"
done
}
grev6_setup() {
local cfg="$1"
local mode="$2"
local remoteip6
local ip6addr peer6addr weakif
json_get_vars ip6addr peer6addr tunlink weakif encaplimit
[ -z "$peer6addr" ] && {
proto_notify_error "$cfg" "MISSING_PEER_ADDRESS"
proto_block_restart "$cfg"
exit
}
remoteip6=$(resolveip -t 10 -6 "$peer6addr")
if [ -z "$remoteip6" ]; then
proto_notify_error "$cfg" "PEER_RESOLVE_FAIL"
exit
fi
for ip6 in $remoteip6; do
peer6addr=$ip6
break
done
( proto_add_host_dependency "$cfg" "$peer6addr" "$tunlink" )
[ -z "$ip6addr" ] && {
local wanif="$tunlink"
if [ -z $wanif ] && ! network_find_wan6 wanif; then
proto_notify_error "$cfg" "NO_WAN_LINK"
exit
fi
if ! network_get_ipaddr6 ip6addr "$wanif"; then
[ -z "$weakif" ] && weakif="lan"
if ! network_get_ipaddr6 ip6addr "$weakif"; then
proto_notify_error "$cfg" "NO_WAN_LINK"
exit
fi
fi
}
case "$mode" in
gretapip6)
gre_generic_setup $cfg $mode $ip6addr $peer6addr "gre6t-$cfg"
;;
*)
gre_generic_setup $cfg $mode $ip6addr $peer6addr "gre6-$cfg"
;;
esac
}
proto_grev6_setup() {
local cfg="$1"
grev6_setup $cfg "greip6"
}
proto_grev6tap_setup() {
local cfg="$1"
local network
json_get_vars network
grev6_setup $cfg "gretapip6"
json_init
json_add_string name "gre6t-$cfg"
json_add_boolean link-ext 0
json_close_object
for i in $network; do
ubus call network.interface."$i" add_device "$(json_dump)"
done
}
gretap_generic_teardown() {
local network
json_get_vars network
json_init
json_add_string name "$1"
json_add_boolean link-ext 0
json_close_object
for i in $network; do
ubus call network.interface."$i" remove_device "$(json_dump)"
done
}
proto_gre_teardown() {
local cfg="$1"
}
proto_gretap_teardown() {
local cfg="$1"
gretap_generic_teardown "gre4t-$cfg"
}
proto_grev6_teardown() {
local cfg="$1"
}
proto_grev6tap_teardown() {
local cfg="$1"
gretap_generic_teardown "gre6t-$cfg"
}
gre_generic_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_int "ikey"
proto_config_add_int "okey"
proto_config_add_boolean "icsum"
proto_config_add_boolean "ocsum"
proto_config_add_boolean "iseqno"
proto_config_add_boolean "oseqno"
proto_config_add_boolean "multicast"
}
proto_gre_init_config() {
gre_generic_init_config
proto_config_add_string "ipaddr"
proto_config_add_string "peeraddr"
proto_config_add_boolean "df"
}
proto_gretap_init_config() {
proto_gre_init_config
proto_config_add_string "network"
}
proto_grev6_init_config() {
gre_generic_init_config
proto_config_add_string "ip6addr"
proto_config_add_string "peer6addr"
proto_config_add_string "weakif"
proto_config_add_string "encaplimit"
}
proto_grev6tap_init_config() {
proto_grev6_init_config
proto_config_add_string "network"
}
[ -n "$INCLUDE_ONLY" ] || {
[ -f /lib/modules/$(uname -r)/gre.ko ] && add_protocol gre
[ -f /lib/modules/$(uname -r)/gre.ko ] && add_protocol gretap
[ -f /lib/modules/$(uname -r)/ip6_gre.ko ] && add_protocol grev6
[ -f /lib/modules/$(uname -r)/ip6_gre.ko ] && add_protocol grev6tap
}