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-rw-r--r--openbsc/src/utils/meas_json.c169
1 files changed, 169 insertions, 0 deletions
diff --git a/openbsc/src/utils/meas_json.c b/openbsc/src/utils/meas_json.c
new file mode 100644
index 000000000..940e5e7ad
--- /dev/null
+++ b/openbsc/src/utils/meas_json.c
@@ -0,0 +1,169 @@
+/* Convert measurement report feed into JSON feed printed to stdout.
+ * Each measurement report is printed as a separae JSON root entry.
+ * All measurement reports are separated by a new line.
+ */
+
+/* (C) 2015 by Alexander Chemeris <Alexander.Chemeris@fairwaves.co>
+ * With parts of code adopted from different places in OpenBSC.
+ *
+ * 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 <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <netinet/in.h>
+
+#include <osmocom/core/socket.h>
+#include <osmocom/core/msgb.h>
+#include <osmocom/core/select.h>
+
+#include <osmocom/gsm/gsm_utils.h>
+
+#include <openbsc/meas_feed.h>
+
+static void print_meas_rep_uni_json(struct gsm_meas_rep_unidir *mru)
+{
+ printf("\"RXL-FULL\":%d, \"RXL-SUB\":%d, ",
+ rxlev2dbm(mru->full.rx_lev),
+ rxlev2dbm(mru->sub.rx_lev));
+ printf("\"RXQ-FULL\":%d, \"RXQ-SUB\":%d",
+ mru->full.rx_qual, mru->sub.rx_qual);
+}
+
+static void print_meas_rep_json(struct gsm_meas_rep *mr)
+{
+ int i;
+
+ printf("\"NR\":%d", mr->nr);
+
+ if (mr->flags & MEAS_REP_F_DL_DTX)
+ printf(", \"DTXd\":true");
+
+ printf(", \"UL_MEAS\":{");
+ print_meas_rep_uni_json(&mr->ul);
+ printf("}");
+ printf(", \"BS_POWER\":%d", mr->bs_power);
+ if (mr->flags & MEAS_REP_F_MS_TO)
+ printf(", \"MS_TO\":%d", mr->ms_timing_offset);
+
+ if (mr->flags & MEAS_REP_F_MS_L1) {
+ printf(", \"L1_MS_PWR\":%d", mr->ms_l1.pwr);
+ printf(", \"L1_FPC\":%s",
+ mr->flags & MEAS_REP_F_FPC ? "true" : "false");
+ printf(", \"L1_TA\":%u", mr->ms_l1.ta);
+ }
+
+ if (mr->flags & MEAS_REP_F_UL_DTX)
+ printf(", \"DTXu\":true");
+ if (mr->flags & MEAS_REP_F_BA1)
+ printf(", \"BA1\":true");
+ if (mr->flags & MEAS_REP_F_DL_VALID) {
+ printf(", \"DL_MEAS\":{");
+ print_meas_rep_uni_json(&mr->dl);
+ printf("}");
+ }
+
+ if (mr->num_cell == 7)
+ return;
+ printf(", \"NUM_NEIGH\":%u, \"NEIGH\":[", mr->num_cell);
+ for (i = 0; i < mr->num_cell; i++) {
+ struct gsm_meas_rep_cell *mrc = &mr->cell[i];
+ if (i!=0) printf(", ");
+ printf("\"IDX\":%u, \"ARFCN\":%u, \"BSIC\":%u, \"POWER\":%d",
+ mrc->neigh_idx, mrc->arfcn, mrc->bsic, rxlev2dbm(mrc->rxlev));
+ }
+ printf("]");
+}
+
+static void print_meas_feed_json(struct meas_feed_meas *mfm)
+{
+ time_t now = time(NULL);
+
+ printf("{");
+ printf("\"time\":%ld, \"imsi\":\"%s\", \"name\":\"%s\", \"scenario\":\"%s\", ",
+ now, mfm->imsi, mfm->name, mfm->scenario);
+
+ printf("\"meas_rep\":{");
+ print_meas_rep_json(&mfm->mr);
+ printf("}");
+
+ printf("}\n");
+
+}
+
+static int handle_meas(struct msgb *msg)
+{
+ struct meas_feed_meas *mfm = (struct meas_feed_meas *) msgb_data(msg);
+
+ print_meas_feed_json(mfm);
+
+ return 0;
+}
+
+static int handle_msg(struct msgb *msg)
+{
+ struct meas_feed_hdr *mfh = (struct meas_feed_hdr *) msgb_data(msg);
+
+ if (mfh->version != MEAS_FEED_VERSION)
+ return -EINVAL;
+
+ switch (mfh->msg_type) {
+ case MEAS_FEED_MEAS:
+ handle_meas(msg);
+ break;
+ default:
+ break;
+ }
+}
+
+static int udp_fd_cb(struct osmo_fd *ofd, unsigned int what)
+{
+ int rc;
+
+ if (what & BSC_FD_READ) {
+ struct msgb *msg = msgb_alloc(1024, "UDP Rx");
+
+ rc = read(ofd->fd, msgb_data(msg), msgb_tailroom(msg));
+ if (rc < 0)
+ return rc;
+ msgb_put(msg, rc);
+ handle_msg(msg);
+ msgb_free(msg);
+ }
+
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ int rc;
+ struct osmo_fd udp_ofd;
+
+ udp_ofd.cb = udp_fd_cb;
+ rc = osmo_sock_init_ofd(&udp_ofd, AF_INET, SOCK_DGRAM, IPPROTO_UDP, NULL, 8888, OSMO_SOCK_F_BIND);
+ if (rc < 0)
+ exit(1);
+
+ while (1) {
+ osmo_select_main(0);
+ };
+
+ exit(0);
+}