There is no need to (re)define the arguments of UDPLink's constructor.
Let's use non-keyworded variable length argument list (*args).
Change-Id: Ia312a5e15ce88d5f7e8d76c4ea8c93c59d91be5a
Since I8fd2a2ab7784b38bde5ebcfd0359b7e2cb53f5a7, SETTA command
handling was broken, because the range limitation was removed
together with argument parsing. Let's fix this.
Change-Id: If582af3849359866de129504cc5b2dc6d64edbd5
There are multiple advantages of using Python's logging module:
- advanced message formatting (file name, line number, etc.),
- multiple logging targets (e.g. stderr, file, socket),
- logging levels (e.g. DEBUG, INFO, ERROR),
- the pythonic way ;)
so, let's replace multiple print() calls by logging calls,
add use the following logging message format by default:
[%(levelname)s] %(filename)s:%(lineno)d %(message)s
Examples:
[INFO] ctrl_if_bts.py:57 Starting transceiver...
[DEBUG] clck_gen.py:87 IND CLOCK 26826
[DEBUG] ctrl_if_bts.py:71 Recv POWEROFF cmd
[INFO] ctrl_if_bts.py:73 Stopping transceiver...
[INFO] fake_trx.py:127 Shutting down...
Please note that there is no way to filter messages by logging
level yet. This is to be introduced soon, together with argparse.
Change-Id: I7fcafabafe8323b58990997a47afdd48b6d1f357
Previously it was only possible to configure a single time-slot
that would be pass-filtered by a BurstForwarder instance. In some
applications it would be useful to configure multiple time-slots,
so let's refactor the time-slot pass-filtering algorithm.
Change-Id: Ie1490adaf7a7c62c966aeb60c1898eaf3b5a1e84
Since FakeTRX is a proxy, it basically emulates transceiver for
both osmo-bts-trx and trxcon, hence there are two separate and
independent control interfaces (usually, ports 6701 and 5701).
All simulation commands (see 'FAKE_*') are usually implemented
on both interfaces separately:
- ctrl_if_bb.py - simulation commands affecting Uplink,
- ctrl_if_bts.py - simulation commands affecting Downlink.
This change introduces the 'FAKE_RSSI' command for both CTRL
interfaces in two variations:
- absolute: CMD FAKE_RSSI <BASE> <THRESH>
- relative: CMD FAKE_RSSI <+-BASE_DELTA>
where 'THRESH' affects optional value randomization.
Change-Id: Ic01c31fb0304345dd7337c3ee1c7ee3c2d3e8460
Despite the correct range of Timing Advance value is [0..63],
there is a special feature in OsmocomBB which allows one to
simulate the distance between both MS and a BTS by playing
with the signal delay.
So, let's drop the range limitation.
Change-Id: I8fd2a2ab7784b38bde5ebcfd0359b7e2cb53f5a7
This change introduces a couple of new CTRL commands for path loss
simulation, in particular a possibility to drop some amount of
bursts according to some TDMA frame period, separately for both
Uplink and Downlink directions.
Examples:
FAKE_DROP 4 - drop 4 consistent (period=1) bursts,
FAKE_DROP 16 2 - drop 16 even bursts (period=2).
Change-Id: Ib210138a03e2377c79875a4ff2f2bb58a43cfa46
Related: OS#3428
Previous hardcoded default of 0.0.0.0 was inappropiate in some
scenarios, as it sets the SRC addr of the packets sent through the
socket based on the routing.
For instance, if iface IF1 has assigned two IP addresses A and B,
A being the first addr of the interface, and osmo-bts-trx is
configured with "osmotrx ip local A" and "osmotrx ip remote B",
the following happens:
CMD POWER OFF src=A:5801 dst=B:5701
RSP POWER OFF src=A:5701 dst=A:5701 <-- A is assigned as src addr.
But osmo-bts-trx is waiting for packets from B:5701, and the packet
is dropped with ICMP Unreachable. If addr binding is forced in
fake_trx to B, then everthing's fine.
Let's extend the UDPLink in order to allow manual, but optional
setting of bind address, and add a corresponding cmdline
argument to all executables.
Change-Id: I7be18fef40967fb7551f4115f22cbbd9cdb0840d
This toolkit has branched out into several different tools for
TRX interface hacking, and creating a virtual Um-interface
(FakeTRX) is only one of its potential applications.
Change-Id: I56bcbc76b9c273d6b469a2bb68ddc46f3980e835
Vadim Yanitskiy
Pau Espin