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http://cgit.osmocom.org/openbsc/commit/?id=55a3e676047651d7487aba50e7e9a143…
commit 55a3e676047651d7487aba50e7e9a1437d3f519a
Author: Holger Hans Peter Freyther <holger(a)moiji-mobile.com>
Date: Mon Jul 13 20:33:08 2015 +0200
nitb: Add a mode to not use TMSI for normal operation
In case foreign simcards are used we can not do authentication
and ciphering. In case a TMSI is re-used too early and we do
page using TMSI we can't know which of the two MS is responding
to us. We could change the "secure channel" routine to ask for
the IMSI and only then stop the paging.
As we don't have ciphering there is not much use in using the
TMSI. Add a mode "no assign-tmsi" that will not assign the TMSI
during LU. Now CM Service Request and Paging Response will
work using the IMSI. There can't be a clash with that.
http://cgit.osmocom.org/openbsc/commit/?id=0c0b30022534e330029a21f8d3b8ed42…
commit 0c0b30022534e330029a21f8d3b8ed42e7d1c953
Author: Holger Hans Peter Freyther <holger(a)moiji-mobile.com>
Date: Mon Jul 13 14:28:29 2015 +0200
nitb: Be less strict about the reject cause
When we can't find the TMSI then the subscriber is not in our
VLR. We have not consulted with the HLR and it is better to not
use such a severe error code.
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The OpenBSC GSM Base Station Controller (+MSC/HLR/SGSN)