Change in ...osmo-msc[master]: libvlr/vlr.c: do not expire subscribers if periodic LU is disabled

[laforge]

laforge has submitted this change and it was merged. ( https://gerrit.osmocom.org/c/osmo-msc/+/14525 )

Change subject: libvlr/vlr.c: do not expire subscribers if periodic LU is disabled
......................................................................

libvlr/vlr.c: do not expire subscribers if periodic LU is disabled

When periodic Location Update is disabled (T3212 = 0), it was noticed
that OsmoMSC does expire subscribers quite soon - after 60 seconds
(VLR_SUBSCRIBER_LU_EXPIRATION_INTERVAL) since the last LU.

In order to avoid that, we need to check T3212 timer value in
vlr_subscr_expire_lu(), and if it's equal to 0, do not expire
anybody until the explicit IMSI Detach.

Change-Id: I2ead2241a3394dbdd5417f4554190df3fd698af2
---
M src/libvlr/vlr.c
1 file changed, 7 insertions(+), 0 deletions(-)

Approvals:
  pespin: Looks good to me, but someone else must approve
  laforge: Looks good to me, approved
  Jenkins Builder: Verified



diff --git a/src/libvlr/vlr.c b/src/libvlr/vlr.c
index 5610cfb..625b699 100644
--- a/src/libvlr/vlr.c
+++ b/src/libvlr/vlr.c
@@ -519,8 +519,15 @@
 {
 	struct vlr_instance *vlr = data;
 	struct vlr_subscr *vsub, *vsub_tmp;
+	struct gsm_network *net;
 	struct timespec now;
 
+	/* Periodic location update might be disabled from the VTY,
+	 * so we shall not expire subscribers until explicit IMSI Detach. */
+	net = vlr->user_ctx; /* XXX move t3212 into struct vlr_instance? */
+	if (!net->t3212)
+		goto done;
+
 	if (llist_empty(&vlr->subscribers))
 		goto done;
 

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Gerrit-Project: osmo-msc
Gerrit-Branch: master
Gerrit-Change-Id: I2ead2241a3394dbdd5417f4554190df3fd698af2
Gerrit-Change-Number: 14525
Gerrit-PatchSet: 1
Gerrit-Owner: fixeria <axilirator at gmail.com>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: laforge <laforge at gnumonks.org>
Gerrit-Reviewer: pespin <pespin at sysmocom.de>
Gerrit-MessageType: merged
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