1 files changed, 75 insertions, 0 deletions
diff --git a/include/osmocom/msc/osmo_bsc.h b/include/osmocom/msc/osmo_bsc.h
new file mode 100644
index 000000000..5ebea5079
--- /dev/null
+++ b/include/osmocom/msc/osmo_bsc.h
@@ -0,0 +1,75 @@
+/* OpenBSC BSC code */
+
+#ifndef OSMO_BSC_H
+#define OSMO_BSC_H
+
+#include "bsc_api.h"
+#include "bsc_msg_filter.h"
+
+#define BSS_SEND_USSD 1
+
+enum bsc_con {
+	BSC_CON_SUCCESS,
+	BSC_CON_REJECT_NO_LINK,
+	BSC_CON_REJECT_RF_GRACE,
+	BSC_CON_NO_MEM,
+};
+
+struct sccp_connection;
+struct bsc_msc_data;
+struct bsc_msc_connection;
+
+struct osmo_bsc_sccp_con {
+	struct llist_head entry;
+
+	int ciphering_handled;
+
+	/* for audio handling */
+	uint16_t cic;
+	uint32_t rtp_ip;
+	int rtp_port;
+
+	/* for advanced ping/pong */
+	int send_ping;
+
+	/* SCCP connection realted */
+	struct sccp_connection *sccp;
+	struct bsc_msc_data *msc;
+	struct osmo_timer_list sccp_it_timeout;
+	struct osmo_timer_list sccp_cc_timeout;
+
+	struct llist_head sccp_queue;
+	unsigned int sccp_queue_size;
+
+	struct gsm_subscriber_connection *conn;
+	uint8_t new_subscriber;
+
+	struct bsc_filter_state filter_state;
+
+	/* Sigtran connection ID */
+	int conn_id;
+};
+
+struct bsc_api *osmo_bsc_api();
+
+int bsc_queue_for_msc(struct osmo_bsc_sccp_con *conn, struct msgb *msg);
+int bsc_open_connection(struct osmo_bsc_sccp_con *sccp, struct msgb *msg);
+enum bsc_con bsc_create_new_connection(struct gsm_subscriber_connection *conn,
+				       struct bsc_msc_data *msc, int send_ping);
+int bsc_delete_connection(struct osmo_bsc_sccp_con *sccp);
+
+struct bsc_msc_data *bsc_find_msc(struct gsm_subscriber_connection *conn, struct msgb *);
+int bsc_scan_bts_msg(struct gsm_subscriber_connection *conn, struct msgb *msg);
+int bsc_scan_msc_msg(struct gsm_subscriber_connection *conn, struct msgb *msg);
+int bsc_send_welcome_ussd(struct gsm_subscriber_connection *conn);
+
+int bsc_handle_udt(struct bsc_msc_data *msc, struct msgb *msg, unsigned int length);
+int bsc_handle_dt(struct osmo_bsc_sccp_con *conn, struct msgb *msg, unsigned int len);
+
+int bsc_ctrl_cmds_install();
+
+void bsc_gen_location_state_trap(struct gsm_bts *bts);
+
+struct llist_head *bsc_access_lists(void);
+
+#endif