sgsn: Pass subscriber error causes to the GMM layer
This patch extends gsm0408_gprs_access_denied and
gsm0408_gprs_access_cancelled to accept GMM cause codes. These are
then passed to the MS, unless gsm0408_gprs_access_cancelled is called
with cause 0 (no error -> updateProcedure).
Since gsm0408_gprs_access_denied uses GMM_CAUSE_GPRS_NOTALLOWED if
the cause is not set, and the subscriber's error_cause is never set
(and thus always 0), the SGSN's behaviour does not change with this
patch.
Sponsored-by: On-Waves ehf
Conflicts:
openbsc/include/openbsc/gprs_sgsn.h
[hfreyther: Conflict due the removal of the unused
authenticate flag]
diff --git a/openbsc/tests/sgsn/sgsn_test.c b/openbsc/tests/sgsn/sgsn_test.c
index d9cb842..ef8661b 100644
--- a/openbsc/tests/sgsn/sgsn_test.c
+++ b/openbsc/tests/sgsn/sgsn_test.c
@@ -1278,7 +1278,7 @@
OSMO_ASSERT(sgsn_tx_counter == 0);
/* cancel */
- gsm0408_gprs_access_cancelled(ctx);
+ gsm0408_gprs_access_cancelled(ctx, 0);
/* verify that things are gone */
OSMO_ASSERT(count(gprs_llme_list()) == 0);