bsc: Start to open a SCCP connection and prepare timers and such.
diff --git a/openbsc/src/bsc/osmo_bsc_sccp.c b/openbsc/src/bsc/osmo_bsc_sccp.c
index d1fff91..620082f 100644
--- a/openbsc/src/bsc/osmo_bsc_sccp.c
+++ b/openbsc/src/bsc/osmo_bsc_sccp.c
@@ -21,6 +21,8 @@
*/
#include <openbsc/gsm_data.h>
+#include <openbsc/osmo_bsc.h>
+#include <openbsc/osmo_bsc_grace.h>
#include <openbsc/osmo_msc_data.h>
#include <openbsc/debug.h>
@@ -30,6 +32,17 @@
#include <osmocom/sccp/sccp.h>
+static LLIST_HEAD(active_connections);
+
+static void msc_outgoing_sccp_data(struct sccp_connection *conn,
+ struct msgb *msg, unsigned int len)
+{
+}
+
+static void msc_outgoing_sccp_state(struct sccp_connection *conn, int old_state)
+{
+}
+
static void msc_sccp_write_ipa(struct sccp_connection *conn, struct msgb *msg, void *data)
{
LOGP(DMSC, LOGL_ERROR, "Writing is not implemented.\n");
@@ -78,8 +91,44 @@
int bsc_create_new_connection(struct gsm_subscriber_connection *conn)
{
- LOGP(DMSC, LOGL_ERROR, "Not implemented yet.\n");
- return -1;
+ struct gsm_network *net;
+ struct osmo_bsc_sccp_con *bsc_con;
+ struct sccp_connection *sccp;
+
+ net = conn->bts->network;
+ if (!net->msc_data->msc_con->is_authenticated) {
+ LOGP(DMSC, LOGL_ERROR, "Not connected to a MSC. Not forwarding data.\n");
+ return -1;
+ }
+
+ if (!bsc_grace_allow_new_connection(net)) {
+ LOGP(DMSC, LOGL_NOTICE, "BSC in grace period. No new connections.\n");
+ return -1;
+ }
+
+ sccp = sccp_connection_socket();
+ if (!sccp) {
+ LOGP(DMSC, LOGL_ERROR, "Failed to allocate memory.\n");
+ return -ENOMEM;
+ }
+
+ bsc_con = talloc_zero(conn->bts, struct osmo_bsc_sccp_con);
+ if (!bsc_con) {
+ LOGP(DMSC, LOGL_ERROR, "Failed to allocate.\n");
+ sccp_connection_free(sccp);
+ return -1;
+ }
+
+ /* callbacks */
+ sccp->state_cb = msc_outgoing_sccp_state;
+ sccp->data_cb = msc_outgoing_sccp_data;
+ sccp->data_ctx = bsc_con;
+
+ bsc_con->sccp = sccp;
+ bsc_con->msc_con = net->msc_data->msc_con;
+ llist_add(&bsc_con->entry, &active_connections);
+ conn->sccp_con = bsc_con;
+ return 0;
}
int bsc_open_connection(struct gsm_subscriber_connection *conn, struct msgb *msg)
@@ -90,10 +139,15 @@
int bsc_delete_connection(struct gsm_subscriber_connection *conn)
{
- if (!conn->sccp_con)
+ struct osmo_bsc_sccp_con *sccp = conn->sccp_con;
+
+ if (!sccp)
return 0;
- talloc_free(conn->sccp_con);
+ llist_del(&sccp->entry);
+ bsc_del_timer(&sccp->sccp_it_timeout);
+ bsc_del_timer(&sccp->sccp_cc_timeout);
+ talloc_free(sccp);
conn->sccp_con = NULL;
return 0;
}