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authorHarald Welte <laforge@gnumonks.org>2018-02-17 10:11:19 +0100
committerHarald Welte <laforge@gnumonks.org>2018-02-18 10:26:09 +0100
commitf70997db90564429cdb93ee34735449cb0dc1a4e (patch)
tree70157dcc63f2a6acd8f7c0d046d26c3fe32b134d /sgsn
parent311ec27f42a4e030ea1e4be758e011119b135f66 (diff)
sgsn: Implement TLLI assignment/modification/unassignment
It's important that we implement the proper TLLI handling whenever our P-TMSI changes. Change-Id: I5b95b9e49f0a1db9659714c4d01f340fd44fafe8
Diffstat (limited to 'sgsn')
-rw-r--r--sgsn/SGSN_Tests.ttcn13
1 files changed, 11 insertions, 2 deletions
diff --git a/sgsn/SGSN_Tests.ttcn b/sgsn/SGSN_Tests.ttcn
index 70e8124..a59bde3 100644
--- a/sgsn/SGSN_Tests.ttcn
+++ b/sgsn/SGSN_Tests.ttcn
@@ -69,6 +69,7 @@ type record BSSGP_ConnHdlrPars {
OCT3 p_tmsi_sig optional,
/* TLLI of the simulated MS */
OCT4 tlli,
+ OCT4 tlli_old optional,
RoutingAreaIdentificationV ra optional,
BssgpCellId bssgp_cell_id,
AuthVector vec optional,
@@ -168,6 +169,7 @@ runs on test_CT return BSSGP_ConnHdlr {
p_tmsi := omit,
p_tmsi_sig := omit,
tlli := f_gprs_tlli_random(),
+ tlli_old := omit,
ra := omit,
bssgp_cell_id := gb.cfg.cell_id,
vec := omit,
@@ -278,6 +280,14 @@ function f_gmm_auth () runs on BSSGP_ConnHdlr {
deactivate(di);
}
+function f_upd_ptmsi_and_tlli(OCT4 p_tmsi) runs on BSSGP_ConnHdlr {
+ g_pars.p_tmsi := p_tmsi;
+ /* update TLLI */
+ g_pars.tlli_old := g_pars.tlli;
+ g_pars.tlli := g_pars.p_tmsi or4b 'c0000000'O;
+ f_bssgp_client_llgmm_assign(g_pars.tlli_old, g_pars.tlli);
+}
+
function f_process_attach_accept(PDU_GMM_AttachAccept aa) runs on BSSGP_ConnHdlr {
/* mandatory IE */
g_pars.ra := aa.routingAreaIdentification;
@@ -286,8 +296,7 @@ function f_process_attach_accept(PDU_GMM_AttachAccept aa) runs on BSSGP_ConnHdlr
setverdict(fail, "unexpected P-TMSI allocation");
self.stop;
}
- g_pars.p_tmsi := aa.allocatedPTMSI.mobileIdentityLV.mobileIdentityV.oddEvenInd_identity.tmsi_ptmsi.octets;
- /* update TLLI? */
+ f_upd_ptmsi_and_tlli(aa.allocatedPTMSI.mobileIdentityLV.mobileIdentityV.oddEvenInd_identity.tmsi_ptmsi.octets);
}
if (ispresent(aa.msIdentity)) {
setverdict(fail, "unexpected TMSI allocation in non-combined attach");