| /* 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 <time.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/gsm_data.h> |
| #include <openbsc/gsm_data_shared.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_chan_info_json(struct meas_feed_meas *mfm) |
| { |
| printf("\"lchan_type\":\"%s\", \"pchan_type\":\"%s\", " |
| "\"bts_nr\":%d, \"trx_nr\":%d, \"ts_nr\":%d, \"ss_nr\":%d", |
| gsm_lchant_name(mfm->lchan_type), gsm_pchan_name(mfm->pchan_type), |
| mfm->bts_nr, mfm->trx_nr, mfm->ts_nr, mfm->ss_nr); |
| } |
| |
| 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); |
| |
| switch (mfm->hdr.version) { |
| case 1: |
| printf("\"chan_info\":{"); |
| print_chan_info_json(mfm); |
| printf("}, "); |
| /* no break, fall to version 0 */ |
| case 0: |
| printf("\"meas_rep\":{"); |
| print_meas_rep_json(&mfm->mr); |
| printf("}"); |
| break; |
| } |
| |
| 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); |
| } |