osmo-bsc - OsmoBSC: Osmocom's Base Station Controller for 2G circuit-switched mobile networks

Age	Commit message (Collapse)	Author	Files	Lines
2016-03-22	cscn: implement integrity protection	Neels Hofmeyr	1	-2/+5
	Upon authentication response, initiate integrity protection for Iu by sending a Security Mode Command (IK), with hardcoded auth tuple so far. Implement RANAP event handling to receive Security Mode Complete message, adding stubs for the other events; in new files osmo-cscn/iucs_ranap.[hc] to keep RANAP dependencies separate, and particularly out of libmsc. Upon receiving Security Mode Complete, call the security operation callback (conn->sec_operation->cb) to complete the Location Update. Introduce enum integrity_protection_state constants to indicate integrity protection, record in gsm_subscriber_conn.iu.integrity_protection. Make subscr_conn_lookup_iu() non-static and declare in iu_cs.h to be able to call from iucs_ranap.c's Security Mode Complete event. Implement dummy iu_tx_sec_mode_cmd() to allow tests to build without RANAP dependencies. In cscn_main.c, call iucs_rx_ranap_event(), to populate the struct gsm_network struct with cscn_network explicitly (don't share cscn_network across compilation scopes because it's ugly).
2016-03-04	create libxsc and move some code, never link libbsc and libmsc	Neels Hofmeyr	1	-2/+1
	libbsc and libmsc have conflicting definitions of gsm_subscriber_connection and do no longer belong together anyway. Create libxsc, meaning 'lib[bm]sc', to hold all code used by both libmsc and libbsc, and make sure gsm_subscriber_connection isn't used there. In various binaries and tests, do not link libbsc and libmsc. (Note: this commit was reshaped out of a large wip chunk, it may not compile properly without the subsequent commits)
2016-03-03	cscn: some file moves/renames	Neels Hofmeyr	1	-4/+1

2016-03-03	cscn: move gsm0408_rcvmsg_iucs() decl to proper place.	Neels Hofmeyr	1	-0/+2
	Add noinst-header iu_cs.h and move the gsm0408_rcvmsg_iucs() declaration there.
2016-03-03	put Iu-common and Iu-CS stuff in proper places	Neels Hofmeyr	1	-1/+3
	Add libiu to contain the parts used by both Iu-CS (in osmo-cscn) and Iu-PS (in gprs) into libiu. It's rather thin and may make sense to move to osmo-iuh altogether, eventually. iu.c is half moved to libiu/, and half to osmo-cscn/iu_cs.c.
2016-03-03	make osmo-cscn compile and receive first Iu-CS buf (and log it only)	Neels Hofmeyr	1	-3/+6

2016-03-03	Add osmo-cscn, as a copy of osmo-nitb.	Neels Hofmeyr	1	-0/+19
	CSCN means "Circuit Switched Core Network" (-in-the-box) and will become a NITB-without-BSC, so that it talks Iu-cs to the HNBGW and talks 'A' to an external BSC. Copying NITB is debatable: on the one hand, we've agreed on the name Osmo-CSCN for the end result (without internal BSC). On the other hand, I will probably add Iu-cs into the NITB code incrementally, in such a way that theoretically, both Iu-cs and the internal BSC functionality could be used at the same time. So Osmo-CSCN will be a NITB plus Iu-cs for a while. Instead of adding to NITB, I prefer to work on a copy, so that the original NITB remains more or less unchanged. Only a later step will clearly distinguish CSCN from NITB: when the BSC part is split off for the benefit of a proper A-interface, and CSCN talks to an external BSC.