Each Cargo.toml now includes a comment which remnids maintainers
of the dependency policy for Xous (that is, nail down every dependency
to the minor number).
Versions are pinned down to the minor number. Yes, this means that
we don't automatically pull in features and bug updates from crates.io,
but it also means we don't pull in new attack surfaces and code that
hasn't been tested or reviewed. I'd like this process to be very deliberate
and not automatic for Xous.
The `rand` crate is almost pinned down to a single version, except
for an odd dependency that's pulled in by hosted mode that depends
on rand 0.8.4 via a subordinate dependency via the `tempfile` crate.
Pondering if it's worth it to try and eliminate that, because the
0.8.4 version doesn't get compiled into any version that touches
real hardware. It just makes it harder to analyze the Cargo.lock
file, mostly. I think I'll leave it as-is.
So far it's been no problem to suspend these in any order, but as
more services come to rely upon them it's better if they suspend after
any client applications have been suspended.
Now that I understand how smoltcp does ping better I have regrets.
The demo example in smoltcp uses a funky macro that was a bit
misleading. I have gotten rid of that but I probably would have made
different decisions in implementing this had I understood the API better.
Anyways. It works, but has some trouble handling the cases of timeouts
sometimes.
Switch to using the new com_rs::serdes::StringDes struct for
deserializing the COM protocol response to WLAN_STATUS.
With this change, `wlan status` will receive a string of up to 64
bytes and print it to the shellchat log. Status string formatting
is handled by the betrusted-ec EC firmware code.
Signed-off-by: samblenny
Switch to using the new com_rs::serdes::StringSer struct for
serializing the COM protocol arguments to WLAN_SET_SSID and
WLAN_SET_PASS. The point is to reduce the amount of ad hoc,
untested packing and unpacking.
Signed-off-by: samblenny
this prevents less trusted processes from connecting to servers
after the kernel initializations are done.
this works so long as we don't have disconnects from the kernel
servers. In order to support disconnects we will also need a
way to re-enumerate the SID to guarantee that we don't have a re-use
problem. But for now, the kernel is not designed with any practical
disconnect mechanism; there is no code that calls the Quit mechanism
on any server.
the connection number is re-used for all objects created
within a process space, so you can't `Drop` the connection
immediately when an object goes out of scope. You have to
make sure all instance of the object go out of scope. This
patch adds reference counting to all the objects so that
the `Drop` function works as intended.
