Procd-ujail don't support symlink now

procd-ujail don't support symlink now.could it support symlink?

uci set @dnsmasq[0].confdir="/tmp/dnsmasq.d"
ln -s /etc/mydnsmasq/custom.conf /tmp/dnsmasq.d/custom.conf
uci commit dhcp
service dnsmasq restart
then dnsmasq can't start up.the error is "can not access /tmp/dnsmasq.d/custom.conf"
if i copy it,it's ok.

If you want to use symlinks, both the symlink and the original file would need to be be inside the ujail.

i don't want to modify the dnsmasq init file.
so if ujail can support symlink without original file,it's better.