stp: Begin to implement a signalling transfer point
This is creating a new application that will be a signalling transfer point. Right now it is a stripped down version of the udt_relay, which is a stripped down version of cellmgr_ng.
This commit is contained in:
Holger Hans Peter Freyther
parent
92affdad72
commit
a93b83bf99
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@ -2,7 +2,7 @@ INCLUDES = $(all_includes) -I$(top_srcdir)/include
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AM_CFLAGS=-Wall $(LIBOSMOCORE_CFLAGS) $(LIBOSMOSCCP_CFLAGS) $(LIBOSMOVTY_CFLAGS) \
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$(NEXUSWARE_C7_CFLAGS) $(NEXUSWARE_UNIPORTE_CFLAGS) $(UNIPORTE)
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sbin_PROGRAMS = cellmgr_ng udt_relay mgcp_mgw
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sbin_PROGRAMS = cellmgr_ng udt_relay osmo_stp mgcp_mgw
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mgcp_mgw_SOURCES = mgcp_ss7.c thread.c debug.c \
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mgcp/mgcp_protocol.c mgcp/mgcp_network.c mgcp/mgcp_vty.c
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@ -20,3 +20,8 @@ udt_relay_SOURCES = main_udt.c mtp_layer3.c thread.c input/ipaccess.c pcap.c \
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bss_patch.c isup.c links.c sctp_m2ua.c
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udt_relay_LDADD = $(LIBOSMOCORE_LIBS) $(LIBOSMOSCCP_LIBS) $(LIBOSMOVTY_LIBS) $(NEXUSWARE_C7_LIBS) \
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-lpthread -lnetsnmp -lcrypto -lm2ua -lsctp
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osmo_stp_SOURCES = main_stp.c mtp_layer3.c thread.c pcap.c link_udp.c snmp_mtp.c \
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debug.c vty_interface.c links.c isup.c
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osmo_stp_LDADD = $(LIBOSMOCORE_LIBS) $(LIBOSMOSCCP_LIBS) $(LIBOSMOVTY_LIBS) $(NEXUSWARE_C7_LIBS) \
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-lpthread -lnetsnmp -lcrypto -lm2ua -lsctp
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@ -0,0 +1,239 @@
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/* Relay UDT/all SCCP messages */
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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 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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*/
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#include <mtp_data.h>
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#include <mtp_level3.h>
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#include <mtp_pcap.h>
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#include <thread.h>
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#include <bsc_data.h>
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#include <snmp_mtp.h>
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#include <cellmgr_debug.h>
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#include <osmocore/talloc.h>
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#include <osmocom/vty/vty.h>
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#include <osmocom/vty/telnet_interface.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <signal.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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#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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static struct log_target *stderr_target;
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static char *config = "osmo_stp.cfg";
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struct bsc_data bsc;
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extern void cell_vty_init(void);
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/*
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* methods called from the MTP Level3 part
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*/
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void mtp_link_set_forward_sccp(struct mtp_link_set *link, struct msgb *_msg, int sls)
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{
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}
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void mtp_linkset_down(struct mtp_link_set *set)
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{
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set->available = 0;
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mtp_link_set_stop(set);
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}
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void mtp_linkset_up(struct mtp_link_set *set)
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{
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set->available = 1;
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mtp_link_set_reset(set);
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}
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static void print_usage()
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{
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printf("Usage: osmo-stp\n");
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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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/* 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.setup)
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link_shutdown_all(bsc.link_set);
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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 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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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 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();
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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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}
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int main(int argc, char **argv)
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{
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int rc;
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INIT_LLIST_HEAD(&bsc.sccp_connections);
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bsc.dpc = 1;
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bsc.opc = 0;
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bsc.sccp_opc = -1;
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bsc.udp_port = 3456;
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bsc.udp_ip = NULL;
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bsc.src_port = 1313;
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bsc.ni_ni = MTP_NI_NATION_NET;
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bsc.ni_spare = 0;
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mtp_link_set_init();
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thread_init();
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log_init(&log_info);
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stderr_target = log_target_create_stderr();
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log_add_target(stderr_target);
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/* enable filters */
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log_set_all_filter(stderr_target, 1);
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log_set_category_filter(stderr_target, DINP, 1, LOGL_INFO);
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log_set_category_filter(stderr_target, DSCCP, 1, LOGL_INFO);
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log_set_category_filter(stderr_target, DMSC, 1, LOGL_INFO);
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log_set_category_filter(stderr_target, DMGCP, 1, LOGL_INFO);
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log_set_print_timestamp(stderr_target, 1);
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log_set_use_color(stderr_target, 0);
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sccp_set_log_area(DSCCP);
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bsc.setup = 0;
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bsc.msc_address = "127.0.0.1";
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bsc.pcap_fd = -1;
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bsc.udp_reset_timeout = 180;
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bsc.ping_time = 20;
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bsc.pong_time = 5;
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bsc.msc_time = 20;
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bsc.forward_only = 1;
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handle_options(argc, argv);
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signal(SIGPIPE, SIG_IGN);
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signal(SIGINT, sigint);
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srand(time(NULL));
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cell_vty_init();
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if (vty_read_config_file(config, NULL) < 0) {
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fprintf(stderr, "Failed to read the VTY config.\n");
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return -1;
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}
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rc = telnet_init(NULL, NULL, 4242);
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if (rc < 0)
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return rc;
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if (link_init(&bsc) != 0)
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return -1;
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while (1) {
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bsc_select_main(0);
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}
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return 0;
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}
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/* dummy for links */
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int msc_init(struct bsc_data *data, int dummy)
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{
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return 0;
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}
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