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commit 50fb6f9d64db5a8695cd793d9378eb4c90adf6d2 Author: Stefan Sperling ssperling@sysmocom.de Date: Thu Feb 22 17:20:16 2018 +0100

destroy hnb context by sending a zero-len msgb after rejecting a HNB

These are the osmo-iuh changes corresponding to the libosmo-netif branch 'destroy_conn_with_zero_msg'.

Change-Id: I15f90a2e899789320e9329e33b3d294a65cc16b6

http://cgit.osmocom.org/osmo-iuh/commit/?id=cc6ed397a63df49316dde1fd5e2385ca...

commit cc6ed397a63df49316dde1fd5e2385ca83f51aaf Author: Stefan Sperling ssperling@sysmocom.de Date: Mon Feb 19 17:02:12 2018 +0100

ensure unique CellIDs in HNB-GW

If we receive a HNB-REGISTER-REQ with a cell ID which is already used by another registered NNB, log an error and send HNB-REGISTER-REJECT.

Tested manually by running two 'hnb-test' programs concurrently (they need to listen on different telnet ports; this port is hard-coded so I compiled two different hnb-test binaries). Then I issued the 'hnbap hnb register' command on the telnet interface of each, and verified that the correct action is logged by osmo-hnbgw. Both hnb-test programs can connect, but only one of them can register at a time. Killing a registered 'hnb-test' program terminates its connection and allows the previously rejected one to register.

The new rejection log message looks like this: hnbgw_hnbap.c:429 rejecting HNB-REGISTER-REQ with duplicate cell identity MCC=901,MNC=99,LAC=49406,RAC=66,SAC=43947,CID=182250155 from (r=127.0.0.1:42828<->l=127.0.0.1:29169)

Change-Id: Iffd441eb2b6b75dfbe001b49b01bea015ca6e11c Related: OS#2789

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