move openbsc/* to repos root

This is the first step in creating this repository from the legacy openbsc.git.

Like all other Osmocom repositories, keep the autoconf and automake files in
the repository root. openbsc.git has been the sole exception, which ends now.

Change-Id: I9c6f2a448d9cb1cc088cf1cf6918b69d7e69b4e7

1 files changed, 104 insertions, 0 deletions

diff --git a/src/libmsc/rrlp.c b/src/libmsc/rrlp.c
new file mode 100644
index 000000000..e695daac7
--- /dev/null
+++ b/src/libmsc/rrlp.c
@@ -0,0 +1,104 @@
+/* Radio Resource LCS (Location) Protocol, GMS TS 04.31 */
+
+/* (C) 2009 by Harald Welte <laforge@gnumonks.org>
+ *
+ * All Rights Reserved
+ *
+ * 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/>.
+ *
+ */
+
+
+
+#include <openbsc/gsm_04_08.h>
+#include <openbsc/signal.h>
+#include <openbsc/gsm_subscriber.h>
+#include <openbsc/chan_alloc.h>
+
+/* RRLP msPositionReq, nsBased,
+ *	Accuracy=60, Method=gps, ResponseTime=2, oneSet */
+static const uint8_t ms_based_pos_req[] = { 0x40, 0x01, 0x78, 0xa8 };
+
+/* RRLP msPositionReq, msBasedPref,
+	Accuracy=60, Method=gpsOrEOTD, ResponseTime=5, multipleSets */
+static const uint8_t ms_pref_pos_req[]  = { 0x40, 0x02, 0x79, 0x50 };
+
+/* RRLP msPositionReq, msAssistedPref,
+	Accuracy=60, Method=gpsOrEOTD, ResponseTime=5, multipleSets */
+static const uint8_t ass_pref_pos_req[] = { 0x40, 0x03, 0x79, 0x50 };
+
+static int send_rrlp_req(struct gsm_subscriber_connection *conn)
+{
+	struct gsm_network *net = conn->network;
+	const uint8_t *req;
+
+	switch (net->rrlp.mode) {
+	case RRLP_MODE_MS_BASED:
+		req = ms_based_pos_req;
+		break;
+	case RRLP_MODE_MS_PREF:
+		req = ms_pref_pos_req;
+		break;
+	case RRLP_MODE_ASS_PREF:
+		req = ass_pref_pos_req;
+		break;
+	case RRLP_MODE_NONE:
+	default:
+		return 0;
+	}
+
+	return gsm48_send_rr_app_info(conn, 0x00,
+				      sizeof(ms_based_pos_req), req);
+}
+
+static int subscr_sig_cb(unsigned int subsys, unsigned int signal,
+			 void *handler_data, void *signal_data)
+{
+	struct gsm_subscriber *subscr;
+	struct gsm_subscriber_connection *conn;
+
+	switch (signal) {
+	case S_SUBSCR_ATTACHED:
+		/* A subscriber has attached. */
+		subscr = signal_data;
+		conn = connection_for_subscr(subscr);
+		if (!conn)
+			break;
+		send_rrlp_req(conn);
+		break;
+	}
+	return 0;
+}
+
+static int paging_sig_cb(unsigned int subsys, unsigned int signal,
+			 void *handler_data, void *signal_data)
+{
+	struct paging_signal_data *psig_data = signal_data;
+
+	switch (signal) {
+	case S_PAGING_SUCCEEDED:
+		/* A subscriber has attached. */
+		send_rrlp_req(psig_data->conn);
+		break;
+	case S_PAGING_EXPIRED:
+		break;
+	}
+	return 0;
+}
+
+void on_dso_load_rrlp(void)
+{
+	osmo_signal_register_handler(SS_SUBSCR, subscr_sig_cb, NULL);
+	osmo_signal_register_handler(SS_PAGING, paging_sig_cb, NULL);
+}