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dnsmasq passes a limited amount of information via DHCP script arguments. Much more information is available through environment variables starting with DNSMASQ_, such as DNSMASQ_INTERFACE. However, when the dhcp-script builds its JSON environment and passes it to hotplug, all of this information is discarded since it is not copied to the JSON environment. Personally, I have a custom-made set of DDNS scripts and rely on environment variables such as DNSMASQ_INTERFACE in order to determine which DNS zones to update. So, not being able to access these variables was detrimental to me. I patched in a quick copy of all DNSMASQ_ variables to the JSON environment so that they can be used in hotplug scripts. In order to do so I also copied /usr/bin/env into dnsmasq's chroot jail. Signed-off-by: Chuck R <github@chuck.cloud> Link: https://github.com/openwrt/openwrt/pull/16354 Signed-off-by: John Crispin <john@phrozen.org> |
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