add struct bsc_subscr, separating libbsc from gsm_subscriber
In a future commit, gsm_subscriber will be replaced by vlr_subscr, and it will
not make sense to use vlr_subscr in libbsc. Thus we need a dedicated BSC
subscriber: struct bsc_subscr.
Add rf_policy arg to bsc_grace_paging_request() because the bsc_subscr will no
longer have a backpointer to gsm_network (used to be via subscr->group).
Create a separate logging filter for the new BSC subscriber. The implementation
of adjusting the filter context is added in libbsc to not introduce
bsc_subscr_get/_put() dependencies to libcommon.
During Paging Response, fetch a bsc_subscr from the mobile identity, like we do
for the gsm_subscriber. It looks like a duplication now, but will make sense
for the VLR as well as for future MSC split patches.
Naming: it was requested to not name the new struct bsc_sub, because 'sub' is
too ambiguous. At the same time it would be fine to have 'bsc_sub_' as function
prefix. Instead of struct bsc_subscriber and bsc_sub_ prefix, I decided to
match both up as struct bsc_subscr and bsc_subscr_ function prefix. It's fast
to type, relatively short, unambiguous, and the naming is consistent.
Add bsc_subscr unit test.
Related: OS#1592, OS#1594
Change-Id: Ia61cc00e8bb186b976939a4fc8f7cf9ce6aa3d8e
diff --git a/openbsc/tests/subscr/bsc_subscr_test.err b/openbsc/tests/subscr/bsc_subscr_test.err
new file mode 100644
index 0000000..a66317a
--- /dev/null
+++ b/openbsc/tests/subscr/bsc_subscr_test.err
@@ -0,0 +1,17 @@
+DREF BSC subscr IMSI:1234567890 usage increases to: 2
+DREF BSC subscr IMSI:1234567890 usage decreases to: 1
+DREF BSC subscr IMSI:1234567890 usage increases to: 2
+DREF BSC subscr IMSI:1234567890 usage decreases to: 1
+DREF BSC subscr IMSI:9876543210 usage increases to: 2
+DREF BSC subscr IMSI:9876543210 usage decreases to: 1
+DREF BSC subscr IMSI:5656565656 usage increases to: 2
+DREF BSC subscr IMSI:5656565656 usage decreases to: 1
+DREF BSC subscr IMSI:1234567890 usage decreases to: 0
+DREF BSC subscr IMSI:9876543210 usage increases to: 2
+DREF BSC subscr IMSI:9876543210 usage decreases to: 1
+DREF BSC subscr IMSI:5656565656 usage increases to: 2
+DREF BSC subscr IMSI:5656565656 usage decreases to: 1
+DREF BSC subscr IMSI:9876543210 usage decreases to: 0
+DREF BSC subscr IMSI:5656565656 usage increases to: 2
+DREF BSC subscr IMSI:5656565656 usage decreases to: 1
+DREF BSC subscr IMSI:5656565656 usage decreases to: 0