osmo-iuh - Osmocom code for the Iuh interface (HNBAP, RUA, RANAP)

Age	Commit message (Collapse)	Author	Files	Lines
2017-08-13	iu_client: derive local SCCP addr from sccp instance	Neels Hofmeyr	1	-19/+0
	ranap_iu_init() is passed an sccp instance that has a local primary point code. Use this primary PC by default as the local address for IuCS and IuPS clients. Remove the current vty command 'iu local-address point-code PC': - It is possible that we would like to configure a differing local point code at some point; this should then happen via sccp address book entries, not parsing PC directly. - Obtaining the local PC from the SCCP instance makes this command obsolete for all setups we're currently aiming at: one local PC per SCCP instance. - There are vty doc failures in this vty command, which cause osmo-msc and osmo-bsc vty test failures; rather than fixing this, let's drop it entirely until we see a need for it (and then do it properly with the address book). Cosmetic: prefix the local static variable with g_* like g_sccp and g_scu and define it in the same place. No default values are needed anymore, it gets overwritten in ranap_iu_init(). Change-Id: I3bb7fc1cd5261d214c6ba0cccfe95f637e6db087
2017-07-31	move openbsc.git's iu.h, iu.c, iu_vty.c here as iu_client	Neels Hofmeyr	1	-0/+140
	To help split openbsc.git to separate MSC and SGSN repositories, place the common Iu interface related code here in libosmo-ranap. Also apply various improvements while moving (from intermittent code review). The code depends on libosmo-ranap tightly. One reason to want this separate from libosmo-ranap could be that it uses libosmo-sigtran, accepting an sccp instance. However, including in libosmo-ranap is the simplest way to go. The osmo-iuh build depends on libosmo-sigtran anyway because of OsmoHNBGW, and all current users of libosmo-ranap also naturally link libosmo-sigtran already. Apply prefix ranap_iu_ and RANAP_IU_ to allow smooth transition from the openbsc.git iu_ to the libranap ranap_iu_ implementations. Prune unneeded #include statements. Instead of sccp_addr, store an rnc pointer in the ue_conn_ctx. To facilitate, also: - Move iu_rnc struct to iu_client.h (as ranap_iu_rnc). - Instead of sccp_addr, pass rnc to ue_conn_ctx_alloc(). - Pass a local struct new_ue_conn_ctx containing the sccp_addr and conn_id up the RANAP handling stack in case of an InitialUE message. - Separate the InitialUE message handling from cn_ranap_handle_co(), by moving to new and separate cn_ranap_handle_co_initial(), so we can still pass a looked-up ue_conn_ctx to all other cn_ranap_handle_co() code paths. - Allocate the ue_conn_ctx only in ranap_handle_co_initial_ue(), not as early as before. Note that we are not actually ever using the rnc pointer now present in ue_conn_ctx. It could be used for more concise paging, to first page only the RNC where we last saw the subscriber. So far we page all matching LAC/RACs. Tweak error logging: use __func__ instead of writing the function names as string constants. In iu_client_vty.c: - Move the asn.1 debug commands from logging over to the iu node. They are not specific to the logging target. They could qualify for an entirely separate 'asn1' root node, but for simplicity place under 'iu'. - Add the 'asn1' commands to ranap_iu_vty_config_write(), so far missing. - remove the legacy "net." from a VTY error message, it is not known which name the parent node of 'iu' has. Depends: libosmo-sccp I85b46269dbe7909e52873ace3f720f6292a4516c, libosmo-sccp Ie1aedd7894acd69ddc887cd65a8a0df4b888838c Change-Id: I6a3f7ad15be03fb94689b4af6ccfa828c25f45c0