osmo-bts - Osmocom BTS-Side code (Abis, scheduling)

Age	Commit message (Collapse)	Author	Files	Lines
2017-08-20	Fix static build of osmo-bts-trx and osmo-bts-virtual.	Alexander Chemeris	1	-1/+1
	New libosmocore has some plugin system which requires dlopen(). So we need to make sure we always link with libdl, even when building statically. Note that this doesn't fix static build of tests - they are still failing with some errors. Change-Id: I8315d6e032e34528def268a49fd88d07bc06ab2e
2017-08-09	VIRT-BTS: Support for GPRS	Harald Welte	3	-9/+7
	Change-Id: Id851578c53255866537a16a0be6c3e9268e6ccbc
2017-07-30	TRX / VIRT-PHY: Make check for BCCH/CCCH more specific	Harald Welte	1	-2/+2
	In bts_model_l1sap_down() we want to identify BCCH/CCCH channel numbers, but our check is a bit non-specific. Let's make the check more specific to only cover the BCCH, Uplink CCCH and Downlink CCCH C-bits as defined n 3GPP TS 08.58 Section 9.3.1 Change-Id: Ia20ab09b96c87c0dfbfaf98e5b2a8d36423fac67
2017-07-30	VIRT-PHY: Print NOTICE log message from unimplemented stubs	Harald Welte	2	-0/+13
	There are plenty of functions stubbed out in osmo-bts-virtual, let's print a NOTICE level log message to be able to correlate any kind of erroneous behavior with the fact that a given function has no actual implementation. Change-Id: Ib607d192f90af7fb2d5a8747de5527f39e3cfefa
2017-07-19	VIRT-PHY: Report virtual RACH bursts with plausible burst type	Harald Welte	1	-1/+3
	Change-Id: I35b103c512993fc52d4e608f07115a4bb4b21022
2017-07-19	virt: Don't print NOTICE log message if ARFCN doesn't match	Harald Welte	1	-4/+1
	In a larger simulated network with multiple BTSs it is normal that one BTS will see GSMTAP frames for an ARFCN that is not an ARFCN used by the local BTS. This is just normal operation. Change-Id: Ic68cace9648ccb17500c94b6ede8814674aa9c29
2017-07-13	VIRT-PHY: cause BTS to terminate in case of recv()/send() on udp socket ↵	Harald Welte	3	-5/+19
	returns 0 It is important that we reliably terminate the BTS in case any of the VirtPHY multicast sockets dies for whatever reason. Change-Id: I5ae3fdd7cc35fdf235550a3b8362020fdd287c13
2017-07-13	VIRT-PHY: Use IPv4 multicast groups for private / local scope	Harald Welte	1	-2/+7
	The addresses in the original code make little sense: * 224.0.0.1 is "All systems on this subnet" and not routed outside the local ethernet segment * 225.0.0.1 is in a RESERVED range that shouldn't be used Change-Id: Iba1ae69f3f193a33f1da343c6562f67bd8d3557f
2017-07-13	VIRT-PHY: Added test option for fast hyperframe repeat.	Sebastian Stumpf	1	-0/+8
	Frame number will restart at 0 after each superframe (approx. 6.1 sec) if enabled. Can be enabled by preprocessor define. Change-Id: If3adf14df5fcd8daf53363c27b3772c42d7122e9
2017-07-13	VIRT-PHY: Fix handling of default values for vty configuration	Harald Welte	3	-14/+6
	The defaults must be set during bts_model_phy_link_set_defaults() and can then later be overridden by the vty (from the config file). They should only be written back to the file if they differ from the default settings. Change-Id: I5d7f2c1dc8bc3d11db5c607b664730e4dcd58c96
2017-07-13	VIRT-PHY: Fixed timeslot in gsmtap-msg on downlink which was always 0.	Sebastian Stumpf	1	-0/+2
	Timeslot is not encoded in the chan_nr accessible in the channel description but was taken from there and so it was always 0. Change-Id: I881a1c61ea47399c9b1385fb220cd587e3593e82
2017-07-13	VIRT-PHY: Initial check-in of a new virtual BTS	Harald Welte	11	-0/+1867
	This patch adds a virtual physical layer designed to simulate the Um air interface between BTS and MS. It does so by encapsulating MAC blocks (Layer 2 PDUs) via GSMTAP and sending them through multicast UDP streams, both in uplink and in downlink. The purpose of this is enable testing without any radio hardware or related licenses. OsmocomBB has recently received as similar patch-set, adding a virty_phy executable that can be run on a PC instead of the classic 'layer1' firmware on a real phone. Using GSMTAP means that one can use unmodified wireshark to decode the messages exchanged on the virtual Um layer. This code was originally started by Harald in January 2016, continued by Sebastian Stumpf in late 2016 and early 2017, and finally completed by Harald in July 2017. Change-Id: I1bf7670975b1e367c1c62983020865a043542622