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Don't process RUA messages if HNB is not registered

Related: OS#5676
Change-Id: I85442e8adfefadc3bf3ed795eaef7677eb0b36e9
---
M src/osmo-hnbgw/hnbgw.c
1 file changed, 4 insertions(+), 0 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-hnbgw refs/changes/33/29333/1

diff --git a/src/osmo-hnbgw/hnbgw.c b/src/osmo-hnbgw/hnbgw.c
index 5b8e05c..3e94e7f 100644
--- a/src/osmo-hnbgw/hnbgw.c
+++ b/src/osmo-hnbgw/hnbgw.c
@@ -273,6 +273,10 @@
 		rc = hnbgw_hnbap_rx(hnb, msg);
 		break;
 	case IUH_PPI_RUA:
+		if (!hnb->hnb_registered) {
+			LOGHNB(hnb, DMAIN, LOGL_NOTICE, "Discarding RUA as HNB is not registered\n");
+			goto out;
+		}
 		hnb->rua_stream = msgb_sctp_stream(msg);
 		rc = hnbgw_rua_rx(hnb, msg);
 		break;

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