194 lines
4.1 KiB
C
194 lines
4.1 KiB
C
/* Everything related to the global BSC */
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/*
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* (C) 2010-2011 by Holger Hans Peter Freyther <zecke@selfish.org>
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* (C) 2010-2011 by On-Waves
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* All Rights Reserved
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include <bsc_data.h>
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#include <cellmgr_debug.h>
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#include <msc_connection.h>
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#include <mtp_pcap.h>
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#include <osmocom/core/talloc.h>
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#include <osmocom/vty/vty.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include <unistd.h>
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#include <signal.h>
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#include <pthread.h>
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE
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#endif
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#include <getopt.h>
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#undef PACKAGE_NAME
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#undef PACKAGE_VERSION
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#undef PACKAGE_BUGREPORT
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#undef PACKAGE_TARNAME
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#undef PACKAGE_STRING
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#include <cellmgr_config.h>
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extern struct bsc_data *bsc;
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extern char *config;
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struct bsc_data *bsc_data_create()
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{
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struct bsc_data *bsc;
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bsc = talloc_zero(NULL, struct bsc_data);
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if (!bsc) {
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LOGP(DINP, LOGL_ERROR, "Failed to create the BSC.\n");
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return NULL;
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}
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INIT_LLIST_HEAD(&bsc->linksets);
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INIT_LLIST_HEAD(&bsc->mscs);
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INIT_LLIST_HEAD(&bsc->apps);
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bsc->udp_port = 3456;
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bsc->udp_ip = NULL;
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bsc->udp_nr_links = 1;
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bsc->udp_src_port = 1313;
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bsc->pcap_fd = -1;
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bsc->udp_reset_timeout = 180;
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/* m2ua code */
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bsc->m2ua_src_port = 2904;
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return bsc;
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}
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static void sigint()
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{
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static pthread_mutex_t exit_mutex = PTHREAD_MUTEX_INITIALIZER;
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static int handled = 0;
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struct mtp_link_set *set;
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/* failed to lock */
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if (pthread_mutex_trylock(&exit_mutex) != 0)
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return;
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if (handled)
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goto out;
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printf("Terminating.\n");
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handled = 1;
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if (bsc) {
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llist_for_each_entry(set, &bsc->linksets, entry)
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link_shutdown_all(set);
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}
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exit(0);
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out:
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pthread_mutex_unlock(&exit_mutex);
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}
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static void sigusr1()
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{
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talloc_report(tall_vty_ctx, stderr);
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talloc_report_full(bsc, stderr);
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}
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static void sigusr2()
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{
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struct msc_connection *msc;
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printf("Closing the MSC connection on demand.\n");
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llist_for_each_entry(msc, &bsc->mscs, entry) {
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if (!msc->msc_link_down)
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msc_close_connection(msc);
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}
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}
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static void print_usage(const char *arg)
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{
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printf("Usage: %s\n", arg);
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}
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static void print_help()
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{
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printf(" Some useful help...\n");
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printf(" -h --help this text\n");
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printf(" -c --config=CFG The config file to use.\n");
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printf(" -p --pcap=FILE. Write MSUs to the PCAP file.\n");
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printf(" -c --once. Send the SLTM msg only once.\n");
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printf(" -v --version. Print the version number\n");
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}
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void handle_options(int argc, char **argv)
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{
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while (1) {
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int option_index = 0, c;
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static struct option long_options[] = {
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{"help", 0, 0, 'h'},
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{"config", 1, 0, 'c'},
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{"pcap", 1, 0, 'p'},
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{"version", 0, 0, 0},
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{0, 0, 0, 0},
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};
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c = getopt_long(argc, argv, "hc:p:v",
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long_options, &option_index);
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if (c == -1)
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break;
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switch (c) {
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case 'h':
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print_usage(argv[0]);
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print_help();
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exit(0);
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case 'p':
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if (bsc->pcap_fd >= 0)
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close(bsc->pcap_fd);
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bsc->pcap_fd = open(optarg, O_WRONLY | O_TRUNC | O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP| S_IROTH);
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if (bsc->pcap_fd < 0) {
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fprintf(stderr, "Failed to open PCAP file.\n");
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exit(0);
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}
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mtp_pcap_write_header(bsc->pcap_fd);
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break;
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case 'c':
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config = optarg;
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break;
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case 'v':
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printf("This is %s version %s.\n", PACKAGE, VERSION);
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exit(0);
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break;
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default:
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fprintf(stderr, "Unknown option.\n");
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break;
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}
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}
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signal(SIGPIPE, SIG_IGN);
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signal(SIGINT, sigint);
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signal(SIGUSR1, sigusr1);
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signal(SIGUSR2, sigusr2);
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}
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