Implement AoIP, port to M3UA SIGTRAN (large addition and refactoring)
This was originally a long series of commits converging to the final result
seen in this patch. It does not make much sense to review the smaller steps'
trial and error, we need to review this entire change as a whole.
Implement AoIP in osmo-msc and osmo-bsc.
Change over to the new libosmo-sigtran API with support for proper
SCCP/M3UA/SCTP stacking, as mandated by 3GPP specifications for the IuCS and
IuPS interfaces.
From here on, a separate osmo-stp process is required for SCCP routing between
OsmoBSC / OsmoHNBGW <-> OsmoMSC / OsmoSGSN
jenkins.sh: build from libosmo-sccp and osmo-iuh master branches now for new
M3UA SIGTRAN.
Patch-by: pmaier, nhofmeyr, laforge
Change-Id: I5ae4e05ee7c57cad341ea5e86af37c1f6b0ffa77
diff --git a/include/openbsc/a_reset.h b/include/openbsc/a_reset.h
new file mode 100644
index 0000000..7aaab06
--- /dev/null
+++ b/include/openbsc/a_reset.h
@@ -0,0 +1,63 @@
+/* (C) 2017 by sysmocom s.f.m.c. GmbH
+ * All Rights Reserved
+ *
+ * Author: Philipp Maier
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#pragma once
+
+
+
+/* Reset context data (callbacks, state machine etc...) */
+struct a_reset_ctx {
+
+ /* FSM instance, which handles the reset procedure */
+ struct osmo_fsm_inst *fsm;
+
+ /* Connection failure counter. When this counter
+ * reaches a certain threshold, the reset procedure
+ * will be triggered */
+ int conn_loss_counter;
+
+ /* A human readable name to display in the logs */
+ char name[256];
+
+ /* Callback function to be called when a connection
+ * failure is detected and a rest must occur */
+ void (*cb)(void *priv);
+
+ /* Privated data for the callback function */
+ void *priv;
+};
+
+/* Create and start state machine which handles the reset/reset-ack procedure */
+struct a_reset_ctx *a_reset_alloc(const void *ctx, const char *name, void *cb, void *priv);
+
+/* Tear down state machine */
+void a_reset_free(struct a_reset_ctx *reset);
+
+/* Confirm that we sucessfully received a reset acknowlege message */
+void a_reset_ack_confirm(struct a_reset_ctx *reset);
+
+/* Report a failed connection */
+void a_reset_conn_fail(struct a_reset_ctx *reset);
+
+/* Report a successful connection */
+void a_reset_conn_success(struct a_reset_ctx *reset);
+
+/* Check if we have a connection to a specified msc */
+bool a_reset_conn_ready(struct a_reset_ctx *reset);