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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="$5"
local mtu ttl tos zone ikey okey icsum ocsum iseqno oseqno
json_get_vars mtu ttl tos zone ikey okey icsum ocsum iseqno oseqno
[ -z "$zone" ] && zone="wan"
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 "$df"
json_add_int ttl "${ttl:-64}"
[ -n "$tos" ] && json_add_string tos "$tos"
json_add_string local "$local"
json_add_string remote "$remote"
[ -n "$tunlink" ] && json_add_string link "$tunlink"
json_add_string info "${ikey:-0},${okey:-0},${icsum:-0},${ocsum:-0},${iseqno:-0},${oseqno:-0}"
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="$2"
local ipaddr peeraddr
json_get_vars df ipaddr peeraddr tunlink
[ -z "$peeraddr" ] && {
proto_notify_error "$cfg" "MISSING_ADDRESS"
proto_block_restart "$cfg"
exit
}
( 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"
gre_generic_setup $cfg $mode $ipaddr $peeraddr "gre-$cfg"
}
proto_gre_setup() {
local cfg="$1"
gre_setup $cfg "greip"
}
proto_gretap_setup() {
local cfg="$1"
local network
json_get_vars network
gre_setup $cfg "gretapip"
json_init
json_add_string name "gre-$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="$2"
local ip6addr peer6addr weakif
json_get_vars ip6addr peer6addr tunlink weakif
[ -z "$peer6addr" ] && {
proto_notify_error "$cfg" "MISSING_ADDRESS"
proto_block_restart "$cfg"
exit
}
( 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
}
gre_generic_setup $cfg $mode $ip6addr $peer6addr "grev6-$cfg"
}
proto_grev6_setup() {
local cfg="$1"
grev6_setup $cfg "greip6"
}
proto_grev6tap_setup() {
local cfg="$1"
local network
json_get_vars network
grev6_setup $cfg "gretapip6"
json_init
json_add_string name "grev6-$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="$1"
gretap_generic_teardown "gre-$cfg"
}
proto_grev6_teardown() {
local cfg="$1"
}
proto_grev6tap_teardown() {
local cfg="$1"
gretap_generic_teardown "grev6-$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_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_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
}
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