commit affbb2064669a58aea4a18f773eed90b15dffcf9
author Oliver Smith <osmith@sysmocom.de> Fri Feb 01 11:35:10 2019 +0100
committer Neels Hofmeyr <neels@hofmeyr.de> Fri Apr 26 20:36:39 2019 +0200
tree 3468f76002d782cbb69b1a897205d9478eb58764
parent 3d6ffd8c9c9e8e97df37bf989ede58e61c7d9a05

GSUP: add inter-MSC handover related msgs and IEs

Based on a draft created by Neels, which is the result of reading a MAP
trace of two MSCs negotiating inter-MSC handovers, and of reading the
TS 29.002, TS 29.010 and related specs:
https://lists.osmocom.org/pipermail/openbsc/2019-January/012653.html

I figured out that the "Handover Number" mentioned in the specifications
is the same as the MSISDN IE that we already have, so we can use that
instead of creating a new IE (example usage in tests/gsup/gsup_test.c).

Create a new OSMO_GSUP_MSGT_E_ROUTING_ERROR message type, which the GSUP
server uses to tell a client that its message could not be forwarded to
the destination (see [1]). MAP has no related message.

[1]: Change-Id: Ia4f345abc877baaf0a8f73b8988e6514d9589bf5 (osmo-hlr.git)

Related: OS#3774
Change-Id: Ic00b0601eacff6d72927cea51767801142ee75db

tests/gsup/gsup_test.ok

diff --git a/tests/gsup/gsup_test.ok b/tests/gsup/gsup_test.ok
index 70f723c..db8bc2f 100644
--- a/tests/gsup/gsup_test.ok
+++ b/tests/gsup/gsup_test.ok
@@ -49,4 +49,32 @@
           Check IMEI Error OK
   Testing Check IMEI Result
           Check IMEI Result OK
+  Testing E Prepare Handover Request
+          E Prepare Handover Request OK
+  Testing E Prepare Handover Error
+          E Prepare Handover Error OK
+  Testing E Prepare Handover Result
+          E Prepare Handover Result OK
+  Testing E Prepare Subsequent Handover Request
+          E Prepare Subsequent Handover Request OK
+  Testing E Prepare Subsequent Handover Error
+          E Prepare Subsequent Handover Error OK
+  Testing E Prepare Subsequent Handover Result
+          E Prepare Subsequent Handover Result OK
+  Testing E Send End Signal Request
+          E Send End Signal Request OK
+  Testing E Send End Signal Error
+          E Send End Signal Error OK
+  Testing E Send End Signal Result
+          E Send End Signal Result OK
+  Testing E Process Access Signalling Request
+          E Process Access Signalling Request OK
+  Testing E Forward Access Signalling Request
+          E Forward Access Signalling Request OK
+  Testing E Close
+          E Close OK
+  Testing E Abort
+          E Abort OK
+  Testing E Routing Error
+          E Routing Error OK
 Done.