Initial support for export + curses-visualization of measurements

This extends osmo_nitb to offer a UDP feed of real-time measurement
reports, which can be used by (a variety of) external tools for
visualization or other processing.

We also add a small ncurses based tool (meas_vis) which shows a
baragraph display of the last few mobile stations that were active,
indicating their uplink/downlink receive level and quality.

<WARNING>
This sends non-portable structures like gsm_meas_rep over UDP
and assumes the receiver has identical alignment and endianness!  Before
this feature is merged, it either needs to be converted to a unix domain
socket (but they don't do multicast, which would be nice) or the wire
format needs to change into something portable with defined alignment
and encoding
</WARNING>

1 files changed, 29 insertions, 0 deletions

diff --git a/openbsc/include/openbsc/meas_feed.h b/openbsc/include/openbsc/meas_feed.h
new file mode 100644
index 000000000..65d09b896
--- /dev/null
+++ b/openbsc/include/openbsc/meas_feed.h
@@ -0,0 +1,29 @@
+#ifndef _OPENBSC_MEAS_FEED_H
+#define _OPENBSC_MEAS_FEED_H
+
+#include <stdint.h>
+
+#include <openbsc/meas_rep.h>
+
+struct meas_feed_hdr {
+	uint8_t msg_type;
+	uint8_t reserved;
+	uint16_t version;
+};
+
+struct meas_feed_meas {
+	struct meas_feed_hdr hdr;
+	char imsi[15+1];
+	char name[31+1];
+	char scenario[31+1];
+	struct gsm_meas_rep mr;
+};
+
+enum meas_feed_msgtype {
+	MEAS_FEED_MEAS		= 0,
+};
+
+#define MEAS_FEED_VERSION	0
+
+
+#endif