forked from retronetworking/osmo-v5
300 lines
7.3 KiB
C
300 lines
7.3 KiB
C
/*
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* (C) 2022 by Harald Welte <laforge@osmocom.org>
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* (C) 2021 by Andreas Eversberg <andreas@eversberg.eu>
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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 <ctype.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 <time.h>
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#include <limits.h>
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#include <unistd.h>
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#include <errno.h>
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#include <osmocom/core/msgb.h>
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#include <osmocom/core/application.h>
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#include <osmocom/core/msgb.h>
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#include <osmocom/core/talloc.h>
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#include <osmocom/core/select.h>
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#include <osmocom/core/stats.h>
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#include <osmocom/core/rate_ctr.h>
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#include <osmocom/core/socket.h>
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#include <osmocom/ctrl/control_vty.h>
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#include <osmocom/vty/telnet_interface.h>
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#include <osmocom/vty/logging.h>
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#include <osmocom/vty/ports.h>
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#include <osmocom/vty/command.h>
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#include <osmocom/vty/stats.h>
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#include <osmocom/vty/misc.h>
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#include <osmocom/vty/cpu_sched_vty.h>
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#include <osmocom/abis/e1_input.h>
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#include <osmocom/abis/abis.h>
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#include "v5x_internal.h"
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#include "v5x_protocol.h"
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#include "layer1.h"
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#include "v5x_l1_fsm.h"
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#include "lapv5.h"
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#include "v5x_le_ctrl_fsm.h"
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#include "v5x_le_port_fsm.h"
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#include "v5x_le_pstn_fsm.h"
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#include "v52_le_lcp_fsm.h"
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#include "v52_le_bcc_fsm.h"
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#include "v52_le_pp_fsm.h"
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#include "v5x_le_management.h"
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#include "v5le_vty.h"
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#include "logging.h"
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#define _GNU_SOURCE
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#include <getopt.h>
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void *tall_v5le_ctx = NULL;
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struct v5x_instance *v5i = NULL;
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static int daemonize = 0;
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const char *v5le_copyright =
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"Copyright (C) 2022 by Harald Welte & Andreas Eversberg\r\n"
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"License AGPLv3+: GNU AGPL version 3 or later <http://gnu.org/licenses/agpl-3.0.html>\r\n"
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"This is free software: you are free to change and redistribute it.\r\n"
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"There is NO WARRANTY, to the extent permitted by law.\r\n";
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static char *config_file = "osmo-v5-le.cfg";
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static void print_help()
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{
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printf("Some useful options:\n");
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printf(" -h --help is printing this text.\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(" -D --daemonize Fork the process into a background daemon\n");
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printf(" -V --version Print the version number\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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{"config-file", 1, 0, 'c'},
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{"daemonize", 0, 0, 'D'},
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{"version", 0, 0, 'V'},
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{"disable-color", 0, 0, 's'},
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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, "hc:sVD", 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_help();
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exit(0);
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break;
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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 'c':
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config_file = talloc_strdup(tall_v5le_ctx, optarg);
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break;
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case 's':
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log_set_use_color(osmo_stderr_target, 0);
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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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case 'D':
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daemonize = 1;
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break;
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default:
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/* ignore */
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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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static int quit = 0;
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static void sighandler(int sigset)
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{
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if (sigset == SIGHUP)
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return;
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if (sigset == SIGPIPE)
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return;
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fprintf(stderr, "Signal received: %d\n", sigset);
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quit = 1;
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}
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int main(int argc, char **argv)
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{
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int rc;
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tall_v5le_ctx = talloc_named_const(NULL, 1, "v5le");
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vty_info.tall_ctx = tall_v5le_ctx;
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msgb_talloc_ctx_init(tall_v5le_ctx, 0);
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osmo_init_ignore_signals();
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osmo_init_logging2(tall_v5le_ctx, &log_info);
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libosmo_abis_init(tall_v5le_ctx);
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vty_info.copyright = v5le_copyright;
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vty_init(&vty_info);
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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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v5le_vty_init();
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ctrl_vty_init(tall_v5le_ctx);
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e1inp_vty_init();
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osmo_cpu_sched_vty_init(tall_v5le_ctx);
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handle_options(argc, argv);
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rate_ctr_init(tall_v5le_ctx);
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osmo_stats_init(tall_v5le_ctx);
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/* global inits of protocols */
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v5x_l1_init();
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v5x_le_ctrl_init();
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v5x_le_port_init();
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v5x_le_pstn_init();
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v52_le_lcp_init();
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v52_le_bcc_init();
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v52_le_pp_init();
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v5x_le_mgmt_init();
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/* create v5x instance */
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v5i = v5x_instance_alloc(tall_v5le_ctx);
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if (!v5i)
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return -ENOMEM;
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rc = vty_read_config_file(config_file, NULL);
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if (rc < 0) {
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fprintf(stderr, "Failed to read config file '%s'.\n", config_file);
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return rc;
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}
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rc = e1_init();
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OSMO_ASSERT(rc == 0);
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/* start telnet after reading config for vty_get_bind_addr() */
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rc = telnet_init_dynif(tall_v5le_ctx, NULL,
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vty_get_bind_addr(), OSMO_VTY_PORT_MGW);
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if (rc < 0)
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return rc;
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/* start DL */
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if (!llist_empty(&v5i->interfaces)) {
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struct v5x_interface *v5if;
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v5if = (struct v5x_interface *)v5i->interfaces.next;
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if (v5if->control.li)
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lapv5_dl_est_req(v5if->control.li, V5X_DLADDR_CTRL);
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if (v5if->pstn.li)
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lapv5_dl_est_req(v5if->pstn.li, V5X_DLADDR_PSTN);
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if (v5if->lcp.li)
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lapv5_dl_est_req(v5if->lcp.li, V52_DLADDR_LCP);
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if (v5if->bcc.li)
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lapv5_dl_est_req(v5if->bcc.li, V52_DLADDR_BCC);
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if (v5if->protection.li[0])
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lapv5_dl_est_req(v5if->protection.li[0], V52_DLADDR_PROTECTION);
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if (v5if->protection.li[1])
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lapv5_dl_est_req(v5if->protection.li[1], V52_DLADDR_PROTECTION);
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}
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/* initialisation */
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srand(time(NULL));
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if (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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/* catch signals */
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signal(SIGINT, sighandler);
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signal(SIGHUP, sighandler);
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signal(SIGTERM, sighandler);
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signal(SIGPIPE, sighandler);
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/* main loop */
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while (!quit) {
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osmo_select_main(0);
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}
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/* reset signals */
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signal(SIGINT, SIG_DFL);
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signal(SIGHUP, SIG_DFL);
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signal(SIGTERM, SIG_DFL);
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signal(SIGPIPE, SIG_DFL);
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/* destroy the universe */
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v5x_instance_free(v5i);
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return 0;
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}
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