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commit c964a2cfa1b08e5bbda5d721a7a0095d26b53791
Author: Stefan Sperling <>
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=<->l=
    This change depends on a new API in libosmo-netif, which is added in
    Change-Id: Iffd441eb2b6b75dfbe001b49b01bea015ca6e11c
    Depends: I8ed78fe39c463e9018756700d13ee5ebe003b57f
    Related: OS#2789


Summary of changes:
 include/osmocom/iuh/hnbgw.h |  6 ++++-
 src/hnbgw.c                 | 16 +++++++++----
 src/hnbgw_hnbap.c           | 57 ++++++++++++++++++++++++++++++++++++++++++++-
 3 files changed, 73 insertions(+), 6 deletions(-)

Osmocom code for Iuh interface

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