357 lines
9.3 KiB
C
357 lines
9.3 KiB
C
/* OsmoHNBGW main routine */
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/* (C) 2015-2024 by Harald Welte <laforge@gnumonks.org>
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* (C) 2016-2023 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
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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 <signal.h>
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#include <getopt.h>
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#include "config.h"
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#include <osmocom/core/application.h>
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#include <osmocom/core/logging.h>
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#include <osmocom/core/stats.h>
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#include <osmocom/vty/vty.h>
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#include <osmocom/vty/command.h>
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#include <osmocom/vty/logging.h>
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#include <osmocom/vty/misc.h>
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#include <osmocom/vty/telnet_interface.h>
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#include <osmocom/vty/ports.h>
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#include <osmocom/vty/stats.h>
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#include <osmocom/ctrl/control_vty.h>
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#include <osmocom/ctrl/ports.h>
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#include <osmocom/netif/stream.h>
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#include <osmocom/sigtran/protocol/m3ua.h>
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#include <osmocom/ranap/ranap_common.h>
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#include <osmocom/hnbgw/hnbgw.h>
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#include <osmocom/hnbgw/hnbgw_cn.h>
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#include <osmocom/hnbgw/hnbgw_pfcp.h>
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static struct {
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int daemonize;
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const char *config_file;
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bool log_disable_color;
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bool log_enable_timestamp;
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int log_level;
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const char *log_category_mask;
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} hnbgw_cmdline_config = {
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0,
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"osmo-hnbgw.cfg",
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false,
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false,
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0,
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NULL,
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};
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static void signal_handler(int signum)
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{
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fprintf(stdout, "signal %u received\n", signum);
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switch (signum) {
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case SIGABRT:
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/* in case of abort, we want to obtain a talloc report and
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* then run default SIGABRT handler, who will generate coredump
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* and abort the process. abort() should do this for us after we
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* return, but program wouldn't exit if an external SIGABRT is
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* received.
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*/
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talloc_report(tall_vty_ctx, stderr);
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talloc_report_full(g_hnbgw, stderr);
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signal(SIGABRT, SIG_DFL);
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raise(SIGABRT);
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break;
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case SIGUSR1:
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talloc_report(tall_vty_ctx, stderr);
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talloc_report_full(g_hnbgw, stderr);
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break;
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default:
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break;
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}
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}
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static void print_usage(void)
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{
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printf("Usage: osmo-hnbgw\n");
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}
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static void print_help(void)
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{
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printf(" -h --help This text.\n");
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printf(" -d option --debug=DHNBAP:DRUA:DRANAP:DMAIN Enable debugging.\n");
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printf(" -D --daemonize Fork the process into a background daemon.\n");
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printf(" -c --config-file filename The config file to use.\n");
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printf(" -s --disable-color\n");
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printf(" -T --timestamp Prefix every log line with a timestamp.\n");
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printf(" -V --version Print the version of OsmoHNBGW.\n");
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printf(" -e --log-level number Set a global loglevel.\n");
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printf("\nVTY reference generation:\n");
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printf(" --vty-ref-mode MODE VTY reference generation mode (e.g. 'expert').\n");
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printf(" --vty-ref-xml Generate the VTY reference XML output and exit.\n");
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}
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static void handle_long_options(const char *prog_name, const int long_option)
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{
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static int vty_ref_mode = VTY_REF_GEN_MODE_DEFAULT;
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switch (long_option) {
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case 1:
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vty_ref_mode = get_string_value(vty_ref_gen_mode_names, optarg);
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if (vty_ref_mode < 0) {
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fprintf(stderr, "%s: Unknown VTY reference generation "
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"mode '%s'\n", prog_name, optarg);
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exit(2);
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}
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break;
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case 2:
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fprintf(stderr, "Generating the VTY reference in mode '%s' (%s)\n",
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get_value_string(vty_ref_gen_mode_names, vty_ref_mode),
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get_value_string(vty_ref_gen_mode_desc, vty_ref_mode));
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vty_dump_xml_ref_mode(stdout, (enum vty_ref_gen_mode) vty_ref_mode);
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exit(0);
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default:
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fprintf(stderr, "%s: error parsing cmdline options\n", prog_name);
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exit(2);
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}
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}
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static 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 int long_option = 0;
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static struct option long_options[] = {
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{"help", 0, 0, 'h'},
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{"debug", 1, 0, 'd'},
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{"daemonize", 0, 0, 'D'},
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{"config-file", 1, 0, 'c'},
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{"disable-color", 0, 0, 's'},
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{"timestamp", 0, 0, 'T'},
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{"version", 0, 0, 'V' },
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{"log-level", 1, 0, 'e'},
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{"vty-ref-mode", 1, &long_option, 1},
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{"vty-ref-xml", 0, &long_option, 2},
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{0, 0, 0, 0}
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};
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c = getopt_long(argc, argv, "hd:Dc:sTVe:",
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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 0:
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handle_long_options(argv[0], long_option);
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break;
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case 'h':
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print_usage();
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print_help();
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exit(0);
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case 's':
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hnbgw_cmdline_config.log_disable_color = true;
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break;
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case 'd':
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hnbgw_cmdline_config.log_category_mask = optarg;
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break;
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case 'D':
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hnbgw_cmdline_config.daemonize = 1;
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break;
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case 'c':
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hnbgw_cmdline_config.config_file = optarg;
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break;
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case 'T':
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hnbgw_cmdline_config.log_enable_timestamp = true;
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break;
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case 'e':
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hnbgw_cmdline_config.log_level = atoi(optarg);
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break;
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case 'V':
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print_version(1);
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exit(0);
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break;
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default:
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/* catch unknown options *as well as* missing arguments. */
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fprintf(stderr, "Error in command line options. Exiting.\n");
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exit(-1);
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break;
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}
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}
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if (argc > optind) {
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fprintf(stderr, "Unsupported positional arguments on command line\n");
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exit(2);
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}
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}
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int main(int argc, char **argv)
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{
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struct osmo_stream_srv_link *srv;
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int rc;
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talloc_enable_null_tracking();
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/* g_hnbgw serves as the root talloc ctx, so allocate with NULL parent */
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g_hnbgw_alloc(NULL);
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g_hnbgw->config.rnc_id = 23;
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talloc_asn1_ctx = talloc_named_const(g_hnbgw, 1, "asn1_context");
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msgb_talloc_ctx_init(g_hnbgw, 0);
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rc = osmo_init_logging2(g_hnbgw, &hnbgw_log_info);
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if (rc < 0)
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exit(1);
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osmo_stats_init(g_hnbgw);
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rc = rate_ctr_init(g_hnbgw);
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if (rc) {
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LOGP(DMAIN, LOGL_FATAL, "rate_ctr_init() failed with rc=%d\n", rc);
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exit(1);
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}
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osmo_fsm_log_timeouts(true);
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rc = osmo_ss7_init();
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if (rc < 0) {
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LOGP(DMAIN, LOGL_FATAL, "osmo_ss7_init() failed with rc=%d\n", rc);
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exit(1);
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}
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hnbgw_vty_info.tall_ctx = g_hnbgw;
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vty_init(&hnbgw_vty_info);
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osmo_ss7_vty_init_asp(g_hnbgw);
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osmo_sccp_vty_init();
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hnbgw_vty_init();
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ctrl_vty_init(g_hnbgw);
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logging_vty_add_cmds();
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osmo_talloc_vty_add_cmds();
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osmo_stats_vty_add_cmds();
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/* Handle options after vty_init(), for --version */
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handle_options(argc, argv);
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rc = vty_read_config_file(hnbgw_cmdline_config.config_file, NULL);
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if (rc < 0) {
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LOGP(DMAIN, LOGL_FATAL, "Failed to parse the config file: '%s'\n",
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hnbgw_cmdline_config.config_file);
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return 1;
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}
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/*
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* cmdline options take precedence over config file, but if no options
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* were passed we must not override the config file.
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*/
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if (hnbgw_cmdline_config.log_disable_color)
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log_set_use_color(osmo_stderr_target, 0);
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if (hnbgw_cmdline_config.log_category_mask)
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log_parse_category_mask(osmo_stderr_target,
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hnbgw_cmdline_config.log_category_mask);
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if (hnbgw_cmdline_config.log_enable_timestamp)
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log_set_print_timestamp(osmo_stderr_target, 1);
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if (hnbgw_cmdline_config.log_level)
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log_set_log_level(osmo_stderr_target,
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hnbgw_cmdline_config.log_level);
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rc = telnet_init_default(g_hnbgw, g_hnbgw, OSMO_VTY_PORT_HNBGW);
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if (rc < 0) {
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perror("Error binding VTY port");
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exit(1);
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}
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g_hnbgw->ctrl = ctrl_interface_setup2(g_hnbgw, OSMO_CTRL_PORT_HNBGW, hnb_ctrl_node_lookup,
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_LAST_CTRL_NODE_HNB);
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if (!g_hnbgw->ctrl) {
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LOGP(DMAIN, LOGL_ERROR, "Failed to create CTRL interface on %s:%u\n",
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ctrl_vty_get_bind_addr(), OSMO_CTRL_PORT_HNBGW);
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exit(1);
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} else {
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rc = hnb_ctrl_cmds_install();
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if (rc) {
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LOGP(DMAIN, LOGL_ERROR, "Failed to install CTRL interface commands\n");
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return 2;
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}
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}
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ranap_set_log_area(DRANAP);
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LOGP(DHNBAP, LOGL_NOTICE, "Using RNC-Id %u\n", g_hnbgw->config.rnc_id);
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OSMO_ASSERT(g_hnbgw->config.iuh_local_ip);
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LOGP(DMAIN, LOGL_NOTICE, "Listening for Iuh at %s %d\n",
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g_hnbgw->config.iuh_local_ip,
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g_hnbgw->config.iuh_local_port);
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srv = osmo_stream_srv_link_create(g_hnbgw);
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if (!srv) {
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perror("cannot create server");
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exit(1);
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}
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osmo_stream_srv_link_set_data(srv, g_hnbgw);
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osmo_stream_srv_link_set_proto(srv, IPPROTO_SCTP);
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osmo_stream_srv_link_set_nodelay(srv, true);
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osmo_stream_srv_link_set_addr(srv, g_hnbgw->config.iuh_local_ip);
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osmo_stream_srv_link_set_port(srv, g_hnbgw->config.iuh_local_port);
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osmo_stream_srv_link_set_accept_cb(srv, hnbgw_rua_accept_cb);
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if (osmo_stream_srv_link_open(srv) < 0) {
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perror("Cannot open server");
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exit(1);
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}
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g_hnbgw->iuh = srv;
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/* Initialize and connect MGCP client. */
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if (hnbgw_mgw_setup() != 0)
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return -EINVAL;
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#if ENABLE_PFCP
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/* If UPF is configured, set up PFCP socket and send Association Setup Request to UPF */
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hnbgw_pfcp_init();
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#endif
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hnbgw_cnpool_start(&g_hnbgw->sccp.cnpool_iucs);
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hnbgw_cnpool_start(&g_hnbgw->sccp.cnpool_iups);
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if (hnbgw_cmdline_config.daemonize) {
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rc = osmo_daemonize();
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if (rc < 0) {
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perror("Error during daemonize");
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exit(1);
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}
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}
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signal(SIGABRT, &signal_handler);
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signal(SIGUSR1, &signal_handler);
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signal(SIGUSR2, &signal_handler);
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osmo_init_ignore_signals();
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while (1) {
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rc = osmo_select_main_ctx(0);
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if (rc < 0)
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exit(3);
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}
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/* not reached */
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exit(0);
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}
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