sgsn: Encode the ULI for the PDP context creation ack
Give the GGSN another opportunity to determine which tarif
to apply for the SGSN/subscriber. This code assumes tha the
RAN is a GERAN system but the assumption has been made in
other places as well.
diff --git a/openbsc/src/gprs/sgsn_libgtp.c b/openbsc/src/gprs/sgsn_libgtp.c
index 07dbc26..008ec1e 100644
--- a/openbsc/src/gprs/sgsn_libgtp.c
+++ b/openbsc/src/gprs/sgsn_libgtp.c
@@ -227,11 +227,16 @@
pdp->rattype.v[0] = 2;
pdp->rattype_given = 1;
- /* include the routing area identity all the time */
+ /* Include RAI and ULI all the time */
pdp->rai_given = 1;
pdp->rai.l = 6;
gsm48_construct_ra(pdp->rai.v, &mmctx->ra);
+ pdp->userloc_given = 1;
+ pdp->userloc.l = 8;
+ pdp->userloc.v[0] = 0; /* CGI for GERAN */
+ bssgp_create_cell_id(&pdp->userloc.v[1], &mmctx->ra, mmctx->cell_id);
+
/* change pdp state to 'requested' */
pctx->state = PDP_STATE_CR_REQ;