tree 630d11c9d41beeabb356a43737589dd42cbcdb16
parent f4d60c8788c16ee55f827a828c5618b4bd8c4a46
author Jacob Erlbeck <jerlbeck@sysmocom.de> 1409136265 +0200
committer Jacob Erlbeck <jerlbeck@sysmocom.de> 1410160322 +0200

gbproxy/test: Add test case for secondary SGSN

This patch adds a case to test the establishment (and shutdown) of
connection between 2 MS and 2 SGSN, where the assignment is based
on each IMSI. Since BVC-RESET and FLOW-CONTROL-BVC will have to be
sent to both SGSN, an ACK is simulated for both.

New functions to generate FLOW-CONTROL-BVC(-ACK) messages are
provided.

It modifies dump_peers to add the string "IMSI matches" to a TLLI dump
line if appropriate.

Note that there is no real support to use a secondary SGSN in the
gbproxy yet, but the test code reflects the expected behaviour when
the feature is implemented.

Sponsored-by: On-Waves ehf