fixeria has uploaded this change for review. ( 
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(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-msc refs/changes/25/14525/1

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 <axilira...@gmail.com>
Gerrit-MessageType: newchange

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