Hi Denis, > oFono creates a single sentinel context when automatic provisioning fails. > This is an indication to the provisioning UI that the user should be > helped/asked/guided in providing a valid context configuration (e.g. APN, > etc) I was running on a headless beagleboard, so no GUI/desktop environment present. I was asssuming that connman would offer the UI necessary to set up Ofono, but I now understand this is not the case.
> Correct. A C-based command line UI (similar to e.g. connmanctl) is
> something that is on our TODO list but we haven't gotten around to it yet.
Ah, that would be useful indeed.
Might I suggest that the documentation could be improved in this area?
In particular by:
- noting that oFono provides a service, and can be controlled through
separate provisioning UIs.
- noting that oFono detects modems automatically, tries to set up a
context/APN (but might need manual provisioning) and that if it is
set up correctly, a service appears in connman.
- noting that there is no CLI tool to control oFono, but there are some
helpful scripts in the source tree.
Had I known this, I think my journey would have been much shorter :-)
> > - When actually connecting from connman (or activating a context using
> > the ofono test/activate-context script), the reported errors are very
> > unclear. I only got a "Not implemented" error, which is very
> > non-descriptive and, looking at the code, is returned in quite some
> > different places. There's also nothing in the log to indicate what
> > went wrong.
> > The activation error in my case was due to a missing tun kernel
> > module, I submitted a separate patch for that.
>
> Missing tun support in the kernel is reported via ofono_error inside
> drivers/atmodem/gprs-context.c. So you most definitely should be seeing
> something in the log about it.
There is indeed an error message in the source:
static int at_gprs_context_probe(struct ofono_gprs_context *gc, unsigned int
vendor, void *data)
...
ofono_error("Missing support for TUN/TAP devices");
However, this error message occurs during the probe, e.g. when plugging
in the modem. At that time, it prevents context driver from being added.
When actually trying to activate the context, it fails without any
meaningful error message (`assign_context()` in `src/gprs.c` silently
fails since no context driver is available).
In any case, please also see the patch I submitted, which makes sure
that tun autoloading works (so all of this is only a problem when tun
support is completely disabled, not just when the module is not loaded
yet).
Gr.
Matthijs
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