msc: Add and use gsm_subscriber_group
Currently every subcriber object directly refers to the gsm_network
which contains a flag shared by every related subscriber
(keep_subscr). This adds a dependency on gsm_network even if only the
function defined in gsm_subscriber_base.c are used.
This patch adds a new struct gsm_subscriber_group which contains the
keep_subscr flag and a back reference to the network object. The
latter is not dereferenced in gsm_subscriber_base.c, so it can safely
be set to NULL when only that part of the gsm_subscriber API is being
used. It also changes that API to use gsm_subscriber_group instead of
gsm_network parameters.
Since there are some places where a pointer to the gsm_network is
needed but where only a gsm_subscriber is available, a 'net' back
pointer is added to the group struct, too. Nevertheless subscr group
and network could be separated completely, but this is not the topic
of this commit.
Sponsored-by: On-Waves ehf
diff --git a/openbsc/include/openbsc/gsm_data.h b/openbsc/include/openbsc/gsm_data.h
index 8e95e64..e237ea2 100644
--- a/openbsc/include/openbsc/gsm_data.h
+++ b/openbsc/include/openbsc/gsm_data.h
@@ -14,6 +14,7 @@
#define OBSC_NM_W_ACK_CB(__msgb) (__msgb)->cb[3]
struct mncc_sock_state;
+struct gsm_subscriber_group;
#define OBSC_LINKID_CB(__msgb) (__msgb)->cb[3]
@@ -277,7 +278,7 @@
struct osmo_bsc_data *bsc_data;
/* subscriber related features */
- int keep_subscr;
+ struct gsm_subscriber_group *subscr_group;
struct gsm_sms_queue *sms_queue;
/* control interface */