sgsn: Add gsm0408_gprs_access_cancelled
This function is called to delete an established MM context
silently without invoking a detach procedure.
It is called when a subscriber is cancelled by the HLR. This
generally happens, when an MS has moved to another routing area and
has to use another SGSN.
Sponsored-by: On-Waves ehf
diff --git a/openbsc/src/gprs/gprs_gmm.c b/openbsc/src/gprs/gprs_gmm.c
index 60a17ce..4f19454 100644
--- a/openbsc/src/gprs/gprs_gmm.c
+++ b/openbsc/src/gprs/gprs_gmm.c
@@ -756,6 +756,33 @@
}
}
+void gsm0408_gprs_access_cancelled(struct sgsn_mm_ctx *ctx)
+{
+ switch (ctx->mm_state) {
+#if 0
+ case GMM_COMMON_PROC_INIT:
+ LOGP(DMM, LOGL_NOTICE,
+ "Cancelled, rejecting ATTACH REQUEST, IMSI=%s\n",
+ ctx->imsi);
+ gsm48_tx_gmm_att_rej(ctx, GMM_CAUSE_IMPL_DETACHED);
+ break;
+ case GMM_REGISTERED_NORMAL:
+ case GMM_REGISTERED_SUSPENDED:
+ LOGP(DMM, LOGL_NOTICE,
+ "Cancelled, detaching, IMSI=%s\n",
+ ctx->imsi);
+ gsm48_tx_gmm_detach_req(
+ ctx, GPRS_DET_T_MT_REATT_NOTREQ, GMM_CAUSE_IMPL_DETACHED);
+ break;
+#endif
+ default:
+ LOGP(DMM, LOGL_INFO,
+ "Cancelled, deleting context, IMSI=%s\n",
+ ctx->imsi);
+ }
+ mm_ctx_cleanup_free(ctx, "access cancelled");
+}
+
/* Parse Chapter 9.4.13 Identity Response */
static int gsm48_rx_gmm_id_resp(struct sgsn_mm_ctx *ctx, struct msgb *msg)
{
diff --git a/openbsc/src/gprs/sgsn_auth.c b/openbsc/src/gprs/sgsn_auth.c
index 071bdab..1f11948 100644
--- a/openbsc/src/gprs/sgsn_auth.c
+++ b/openbsc/src/gprs/sgsn_auth.c
@@ -184,7 +184,10 @@
gsm0408_gprs_access_granted(mmctx);
break;
case SGSN_AUTH_REJECTED:
- gsm0408_gprs_access_denied(mmctx);
+ if (subscr && (subscr->flags & GPRS_SUBSCRIBER_CANCELLED) != 0)
+ gsm0408_gprs_access_cancelled(mmctx);
+ else
+ gsm0408_gprs_access_denied(mmctx);
break;
default:
break;