gluon/package/gluon-mesh-vpn-fastd/files/lib/gluon/mesh-vpn-fastd/update-dnsmasq

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#!/bin/sh
. /lib/functions.sh
_json_push() {
export JSON_PATH="${JSON_PATH}/$1"
}
_json_pop() {
export JSON_PATH="${JSON_PATH%/*}"
}
json_init() {
export JSON_PATH=''
}
json_add_object() {
_json_push "$1"
}
json_close_object() {
_json_pop
}
json_add_array() {
_json_push "$1"
}
json_close_array() {
_json_pop
}
json_add_int() {
return
}
json_add_boolean() {
return
}
json_add_double() {
return
}
json_add_string() {
[ "$JSON_PATH" = '/inactive/dns_server' ] || return
echo "$2"
}
get_dns_server() {
eval `jshn -r "$(ubus call network.interface.wan status)"`
}
generate_dnsmasq_conf_remote() {
local remote="$1"; local servers="$2"
local hostname="$(echo "$remote" | awk -F \" '{print $2}')"
[ -n "$hostname" ] || return
for ns in $servers; do
echo "server=/$hostname/$ns"
done
}
generate_dnsmasq_conf_peer() {
local peer="$1"; local servers="$2"
local enabled; local net
config_get_bool enabled "$peer" 'enabled' 0
[ "$enabled" -gt 0 ] || return
config_get net "$peer" 'net'
[ "$net" = 'mesh_vpn' ] || return
config_list_foreach "$peer" 'remote' generate_dnsmasq_conf_remote "$servers"
}
generate_dnsmasq_conf() {
local servers="$1"
config_load fastd
config_foreach generate_dnsmasq_conf_peer 'peer' "$servers"
}
mkdir -p /var/gluon/mesh-vpn-fastd
generate_dnsmasq_conf "$(get_dns_server)" > /var/gluon/mesh-vpn-fastd/dnsmasq.conf.$$
lock /var/gluon/mesh-vpn-fastd/dnsmasq.conf.lock
if cmp -s /var/gluon/mesh-vpn-fastd/dnsmasq.conf.$$ /var/gluon/dnsmasq.d/mesh-vpn-fastd.conf; then
rm /var/gluon/mesh-vpn-fastd/dnsmasq.conf.$$
else
mv -f /var/gluon/mesh-vpn-fastd/dnsmasq.conf.$$ /var/gluon/dnsmasq.d/mesh-vpn-fastd.conf
/etc/init.d/dnsmasq restart
fi
lock -u /var/gluon/mesh-vpn-fastd/dnsmasq.conf.lock