| /* pcu_main.cpp |
| * |
| * Copyright (C) 2012 Ivan Klyuchnikov |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version 2 |
| * 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 General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| */ |
| |
| #include <gprs_bssgp_pcu.h> |
| #include <arpa/inet.h> |
| #include <pcu_l1_if.h> |
| #include <gprs_rlcmac.h> |
| #include <gsm_timer.h> |
| #include <gprs_debug.h> |
| #include <unistd.h> |
| #include <getopt.h> |
| |
| struct gprs_rlcmac_bts *gprs_rlcmac_bts; |
| uint16_t spoof_mcc = 0, spoof_mnc = 0; |
| |
| // TODO: We should move this parameters to config file. |
| #define SGSN_IP "127.0.0.1" |
| #define SGSN_PORT 23000 |
| #define NSVCI 4 |
| |
| static void print_help() |
| { |
| printf( "Some useful options:\n" |
| " -h --help this text\n" |
| " -m --mcc MCC use given MCC instead of value " |
| "provided by BTS\n" |
| " -n --mnc MNC use given MNC instead of value " |
| "provided by BTS\n" |
| ); |
| } |
| |
| /* FIXME: finally get some option parsing code into libosmocore */ |
| static void handle_options(int argc, char **argv) |
| { |
| while (1) { |
| int option_idx = 0, c; |
| static const struct option long_options[] = { |
| { "help", 0, 0, 'h' }, |
| { "mcc", 0, 0, 'm' }, |
| { "mnc", 0, 0, 'n' }, |
| { 0, 0, 0, 0 } |
| }; |
| |
| c = getopt_long(argc, argv, "hm:n:", |
| long_options, &option_idx); |
| if (c == -1) |
| break; |
| |
| switch (c) { |
| case 'h': |
| print_help(); |
| exit(0); |
| break; |
| case 'm': |
| spoof_mcc = atoi(optarg); |
| break; |
| case 'n': |
| spoof_mnc = atoi(optarg); |
| break; |
| default: |
| fprintf(stderr, "Unknown option '%c'\n", c); |
| exit(0); |
| break; |
| } |
| } |
| } |
| |
| int sgsn_ns_cb(enum gprs_ns_evt event, struct gprs_nsvc *nsvc, struct msgb *msg, uint16_t bvci) |
| { |
| int rc = 0; |
| switch (event) { |
| case GPRS_NS_EVT_UNIT_DATA: |
| /* hand the message into the BSSGP implementation */ |
| rc = gprs_bssgp_pcu_rcvmsg(msg); |
| break; |
| default: |
| LOGP(DPCU, LOGL_ERROR, "RLCMAC: Unknown event %u from NS\n", event); |
| if (msg) |
| talloc_free(msg); |
| rc = -EIO; |
| break; |
| } |
| return rc; |
| } |
| |
| int main(int argc, char *argv[]) |
| { |
| uint16_t nsvci = NSVCI; |
| struct gprs_ns_inst *sgsn_nsi; |
| struct gprs_nsvc *nsvc; |
| struct gprs_rlcmac_bts *bts; |
| |
| bts = gprs_rlcmac_bts = talloc_zero(NULL, struct gprs_rlcmac_bts); |
| if (!gprs_rlcmac_bts) |
| return -ENOMEM; |
| gprs_rlcmac_bts->initial_cs = 1; |
| bts->initial_cs = 1; |
| bts->cs1 = 1; |
| bts->t3142 = 20; |
| bts->t3169 = 5; |
| bts->t3191 = 5; |
| bts->t3193_msec = 100; |
| bts->t3195 = 5; |
| bts->n3101 = 10; |
| bts->n3103 = 4; |
| bts->n3105 = 8; |
| |
| osmo_init_logging(&gprs_log_info); |
| |
| handle_options(argc, argv); |
| if ((!!spoof_mcc) + (!!spoof_mnc) == 1) { |
| fprintf(stderr, "--mcc and --mnc must be specified " |
| "together.\n"); |
| exit(0); |
| } |
| |
| pcu_l1if_open(); |
| |
| sgsn_nsi = gprs_ns_instantiate(&sgsn_ns_cb, NULL); |
| bssgp_nsi = sgsn_nsi; |
| |
| if (!bssgp_nsi) |
| { |
| LOGP(DPCU, LOGL_ERROR, "Unable to instantiate NS\n"); |
| exit(1); |
| } |
| bctx = btsctx_alloc(BVCI, NSEI); |
| bctx->cell_id = CELL_ID; |
| bctx->nsei = NSEI; |
| bctx->ra_id.mnc = spoof_mcc ? : MNC; |
| bctx->ra_id.mcc = spoof_mnc ? : MCC; |
| bctx->ra_id.lac = PCU_LAC; |
| bctx->ra_id.rac = PCU_RAC; |
| bctx->bvci = BVCI; |
| uint8_t cause = 39; |
| gprs_ns_nsip_listen(sgsn_nsi); |
| |
| struct sockaddr_in dest; |
| dest.sin_family = AF_INET; |
| dest.sin_port = htons(SGSN_PORT); |
| inet_aton(SGSN_IP, &dest.sin_addr); |
| |
| nsvc = gprs_ns_nsip_connect(sgsn_nsi, &dest, NSEI, nsvci); |
| unsigned i = 0; |
| while (1) |
| { |
| osmo_gsm_timers_check(); |
| osmo_gsm_timers_prepare(); |
| osmo_gsm_timers_update(); |
| |
| osmo_select_main(0); |
| if (i == 7) |
| { |
| bssgp_tx_bvc_reset(bctx, BVCI, cause); |
| } |
| i++; |
| } |
| |
| talloc_free(gprs_rlcmac_bts); |
| } |
| |