2019-05-11 20:31:12 +00:00
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/*
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* osmo-e1d.c
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*
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* (C) 2019 by Sylvain Munaut <tnt@246tNt.com>
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*
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* All Rights Reserved
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*
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* SPDX-License-Identifier: GPL-2.0+
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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 General Public License as published by
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* the Free Software Foundation; either version 2 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <errno.h>
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#include <sched.h>
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#include <signal.h>
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#include <stdio.h>
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#include <string.h>
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2020-06-29 14:57:09 +00:00
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#define _GNU_SOURCE
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#include <getopt.h>
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2019-05-11 20:31:12 +00:00
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#include <talloc.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/select.h>
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2020-06-29 14:57:09 +00:00
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#include <osmocom/vty/telnet_interface.h>
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2020-07-09 20:29:41 +00:00
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#include <osmocom/vty/logging.h>
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2019-05-11 20:31:12 +00:00
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#include <osmocom/e1d/proto_srv.h>
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2020-06-29 19:11:36 +00:00
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#include <osmocom/e1d/proto.h>
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2019-05-11 20:31:12 +00:00
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#include "e1d.h"
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2020-12-18 16:13:04 +00:00
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#include "usb.h"
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2019-05-11 20:31:12 +00:00
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#include "log.h"
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2020-06-29 14:57:09 +00:00
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#ifndef OSMO_VTY_PORT_E1D
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#define OSMO_VTY_PORT_E1D 4269
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#endif
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2019-05-11 20:31:12 +00:00
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extern struct osmo_e1dp_server_handler e1d_ctl_handlers[];
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2020-06-29 14:57:09 +00:00
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static const char *g_config_file = "osmo-e1d.cfg";
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2019-05-11 20:31:12 +00:00
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static void *g_e1d_ctx = NULL;
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static int g_shutdown = 0;
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static void sig_handler(int signo)
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{
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fprintf(stdout, "signal %d received\n", signo);
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switch (signo) {
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case SIGINT:
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case SIGTERM:
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fprintf(stdout, "shutting down\n");
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g_shutdown = 1;
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break;
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case SIGABRT:
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case SIGUSR1:
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talloc_report(g_e1d_ctx, stderr);
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talloc_report_full(g_e1d_ctx, stderr);
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break;
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case SIGUSR2:
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talloc_report_full(g_e1d_ctx, 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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2020-06-29 14:57:09 +00:00
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static struct vty_app_info vty_info = {
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.name = "osmo-e1d",
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.version = PACKAGE_VERSION,
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.copyright =
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"(C) 2019 by Sylvain Munaut <tnt@246tNt.com>\r\n",
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"License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.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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};
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static void print_help(void)
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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(" -d --debug option --debug=DE1D:DXFR enable debugging.\n");
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printf(" -c --config-file filename The config file to use.\n");
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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 const struct option long_options[] = {
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{"help", 0, 0, 'h'},
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{"debug", 1, 0, 'd'},
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{"config-file", 1, 0, 'c'},
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{0, 0, 0, 0}
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};
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c = getopt_long(argc, argv, "hd:c:", 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 'd':
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log_parse_category_mask(osmo_stderr_target, optarg);
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break;
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case 'c':
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g_config_file = optarg;
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break;
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default:
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fprintf(stderr, "Error in command line options. Exiting.\n");
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exit(-1);
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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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2019-05-11 20:31:12 +00:00
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int main(int argc, char *argv[])
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{
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struct e1_daemon *e1d = NULL;
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struct osmo_e1dp_server *srv = NULL;
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struct sched_param sp;
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int rv;
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/* talloc init */
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g_e1d_ctx = talloc_named_const(NULL, 0, "osmo-e1d");
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msgb_talloc_ctx_init(g_e1d_ctx, 0);
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2020-06-29 14:57:09 +00:00
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vty_info.tall_ctx = g_e1d_ctx;
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2019-05-11 20:31:12 +00:00
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/* logging init */
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osmo_init_logging2(g_e1d_ctx, &log_info);
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/* signals init */
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signal(SIGINT, &sig_handler);
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signal(SIGTERM, &sig_handler);
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signal(SIGABRT, &sig_handler);
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signal(SIGUSR1, &sig_handler);
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signal(SIGUSR2, &sig_handler);
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osmo_init_ignore_signals();
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/* rt prio */
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memset(&sp, 0x00, sizeof(sp));
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sp.sched_priority = 50;
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rv = sched_setscheduler(0, SCHED_RR, &sp);
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if (rv != 0) {
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LOGP(DE1D, LOGL_ERROR, "Failed to set Real-Time priority. USB comms might be unstable.\n");
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perror("sched_setscheduler");
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}
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/* main state */
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e1d = talloc_zero(g_e1d_ctx, struct e1_daemon);
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OSMO_ASSERT(e1d);
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INIT_LLIST_HEAD(&e1d->interfaces);
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2020-06-29 14:57:09 +00:00
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vty_init(&vty_info);
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2020-07-09 20:29:41 +00:00
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logging_vty_add_cmds();
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2020-06-29 14:57:09 +00:00
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e1d_vty_init(e1d);
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handle_options(argc, argv);
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rv = vty_read_config_file(g_config_file, NULL);
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if (rv < 0) {
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LOGP(DE1D, LOGL_FATAL, "Failed to parse the config file '%s'\n", g_config_file);
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exit(2);
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}
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rv = telnet_init_dynif(g_e1d_ctx, e1d, vty_get_bind_addr(), OSMO_VTY_PORT_E1D);
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if (rv != 0) {
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LOGP(DE1D, LOGL_FATAL, "Failed to bind VTY interface to %s:%u\n",
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vty_get_bind_addr(), OSMO_VTY_PORT_E1D);
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exit(1);
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}
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2019-05-11 20:31:12 +00:00
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/* probe devices */
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rv = e1_usb_probe(e1d);
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if (rv != 0) {
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LOGP(DE1D, LOGL_ERROR, "Failed to prove usb devices\n");
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}
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/* server init */
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2020-06-29 19:11:36 +00:00
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srv = osmo_e1dp_server_create(g_e1d_ctx, E1DP_DEFAULT_SOCKET, e1d_ctl_handlers, e1d);
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2019-05-11 20:31:12 +00:00
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OSMO_ASSERT(srv);
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/* main loop */
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while (!g_shutdown) {
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2019-12-17 14:18:34 +00:00
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osmo_select_main(0);
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2019-05-11 20:31:12 +00:00
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}
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/* cleanup */
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if (srv)
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osmo_e1dp_server_destroy(srv);
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talloc_free(e1d);
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return 0;
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}
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