23 Feb
2018
23 Feb
'18
10:44 a.m.
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http://cgit.osmocom.org/osmo-iuh/commit/?id=c964a2cfa1b08e5bbda5d721a7a0095…
commit c964a2cfa1b08e5bbda5d721a7a0095d26b53791
Author: Stefan Sperling <ssperling(a)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)
This change depends on a new API in libosmo-netif, which is added in
https://gerrit.osmocom.org/#/c/6844/
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(-)
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Osmocom code for Iuh interface