On 3/29/22 09:29, Aleksander Morgado wrote:
Hey,
The current openwrt integration suffered from a serious problem:
network initiated disconnections were properly detected by MM but
never reported to netifd. Due to this, the modem may end up in
registered state while netifd thinks it is still connected.
I reported about this issue here: https://github.com/openwrt/openwrt/issues/8368
After discussing the problem with one of the openwrt maintainers, they
suggested a way to report the disconnection of the interface to
netifd. In order to run the operations they suggested, I've added
support for connection status dispatch scripts in ModemManager. These
are scripts that distributions or users could install, equivalent to
what we do with the FCC unlock scripts, and which are run whenever a
bearer gets connected or disconnected.
Oh, good. We have ended up with extensive logic to handle reconnections/reset
logic and whatnot with a monitoring script; it's clearly not perfect, but it
does much of what's needed, but it is now overly complex.
Improving this logic at the lower layer will likely be a significant reliability
improvement. I will try and test this soon.
