Add CTRL interface

* add command to query Packet Services (GPRS etc.) for particular IMSI.
* add vty command to configure ctrl bind address
* add missing vty copyright notice

Change-Id: Id787ef4aa88473c3bbde6ee25117b1fd99dc8fcb
Related: OS#1645

1 files changed, 81 insertions, 0 deletions

diff --git a/src/ctrl.c b/src/ctrl.c
new file mode 100644
index 0000000..a167171
--- /dev/null
+++ b/src/ctrl.c
@@ -0,0 +1,81 @@
+/* OsmoHLR Control Interface implementation */
+
+/* (C) 2017 sysmocom s.f.m.c. GmbH <info@sysmocom.de>
+ * All Rights Reserved
+ *
+ * Author: Max Suraev <msuraev@sysmocom.de>
+ *
+ * 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 <stdbool.h>
+
+#include <osmocom/ctrl/control_cmd.h>
+#include <osmocom/ctrl/control_if.h>
+#include <osmocom/ctrl/ports.h>
+
+#include "gsup_server.h"
+#include "logging.h"
+#include "db.h"
+#include "hlr.h"
+#include "luop.h"
+#include "ctrl.h"
+
+CTRL_CMD_DEFINE_WO_NOVRF(status_ps, "status-ps");
+static int set_status_ps(struct ctrl_cmd *cmd, void *data)
+{
+	struct hlr *ctx = data;
+	struct lu_operation *luop = lu_op_alloc(ctx->gs);
+	if (!luop) {
+		cmd->reply = "Internal HLR error";
+		return CTRL_CMD_ERROR;
+	}
+
+	if (!lu_op_fill_subscr(luop, ctx->dbc, cmd->value)) {
+		cmd->reply = "Subscriber Unknown in HLR";
+		return CTRL_CMD_ERROR;
+	}
+
+	cmd->reply = luop->subscr.nam_ps ? "1" : "0";
+
+	return CTRL_CMD_REPLY;
+}
+
+int hlr_ctrl_cmds_install()
+{
+	int rc = 0;
+
+	rc |= ctrl_cmd_install(CTRL_NODE_ROOT, &cmd_status_ps);
+
+	return rc;
+}
+
+struct ctrl_handle *hlr_controlif_setup(struct hlr *ctx,
+					struct osmo_gsup_server *gs)
+{
+	int rc;
+	struct ctrl_handle *hdl = ctrl_interface_setup_dynip(ctx,
+							     ctx->ctrl_bind_addr,
+							     OSMO_CTRL_PORT_HLR,
+							     NULL);
+	if (!hdl)
+		return NULL;
+
+	rc = hlr_ctrl_cmds_install();
+	if (rc) /* FIXME: close control interface? */
+		return NULL;
+
+	return hdl;
+}