wip: vty: make msc sccp addressesconfigurable

Currently all sccp addresses on the msc (and bsc)
side are hardcoded.

Prepare the msc code to make the associated BSCs
configurble. Make the compiler link libosmo-sccp
properly and start using the sccp addressbook
feature of libosmoc-sccp.

Change-Id: I0171da40cfc2d90a4ca8e423b51cf7275c3d5571

2 files changed, 20 insertions, 2 deletions

diff --git a/openbsc/include/openbsc/a_iface.h b/openbsc/include/openbsc/a_iface.h
index f40356ab4..1d63571f1 100644
--- a/openbsc/include/openbsc/a_iface.h
+++ b/openbsc/include/openbsc/a_iface.h
@@ -18,6 +18,23 @@
  *
  */
 
+#pragma once
+
+#include <openbsc/a_reset.h>
+
+/* A struct to keep a context information about the BSCs we are associated with */
+struct bsc_context {
+	struct llist_head list;
+
+	/* To be filled up by the user (VTY) */
+	struct osmo_sccp_addr called_addr;	/* BSC (remote) */
+	struct osmo_sccp_addr calling_addr;	/* MSC (local) */
+
+	/* Automatically filled up by a_init() */
+	struct a_reset_ctx reset;		/* Reset FSM (one per BSC) */
+	struct osmo_sccp_user *sccp_user;	/* SCCP user (the same for all) */
+};
+
 /* Initalize A interface connection between to MSC and BSC */
 int a_init(void *ctx, struct osmo_sccp_instance *sccp, struct gsm_network *network);
 
@@ -39,5 +56,3 @@ void a_clear_all(struct osmo_sccp_user *scu, struct osmo_sccp_addr *bsc_addr);
 
 /* Delete info of a closed connection from the active connection list */
 void a_delete_bsc_con(uint32_t conn_id);
-
-#pragma once
diff --git a/openbsc/include/openbsc/gsm_data.h b/openbsc/include/openbsc/gsm_data.h
index 13178ae6c..be583d958 100644
--- a/openbsc/include/openbsc/gsm_data.h
+++ b/openbsc/include/openbsc/gsm_data.h
@@ -483,6 +483,9 @@ struct gsm_network {
 	} iu;
 
 	struct osmo_sccp_instance *sccp;
+
+	/* A list with all associated BSCs */
+	struct llist_head bscs;
 };
 
 struct osmo_esme;