Add "silent call" feature to OpenBSC

This allows the administrator to use the vty interface to issue a silent
call to a given subscriber by using
	"subscriber extension XXXX silent call start"
and stopping that silent call with
	"subscriber extension XXXX silent call stop"

1 files changed, 14 insertions, 0 deletions

diff --git a/openbsc/include/openbsc/signal.h b/openbsc/include/openbsc/signal.h
index 1af849684..9e5511f6f 100644
--- a/openbsc/include/openbsc/signal.h
+++ b/openbsc/include/openbsc/signal.h
@@ -39,6 +39,7 @@ enum signal_subsystems {
 	SS_NM,
 	SS_LCHAN,
 	SS_SUBSCR,
+	SS_SCALL,
 };
 
 /* SS_PAGING signals */
@@ -85,6 +86,13 @@ enum signal_subscr {
 	S_SUBSCR_DETACHED,
 };
 
+/* SS_SCALL signals */
+enum signal_scall {
+	S_SCALL_SUCCESS,
+	S_SCALL_EXPIRED,
+	S_SCALL_DETACHED,
+};
+
 typedef int signal_cbfn(unsigned int subsys, unsigned int signal,
 			void *handler_data, void *signal_data);
 
@@ -96,6 +104,12 @@ struct paging_signal_data {
 	struct gsm_lchan *lchan;
 };
 
+struct scall_signal_data {
+	struct gsm_subscriber *subscr;
+	struct gsm_lchan *lchan;
+	void *data;
+};
+
 /* Management */
 int register_signal_handler(unsigned int subsys, signal_cbfn *cbfn, void *data);
 void unregister_signal_handler(unsigned int subsys, signal_cbfn *cbfn, void *data);