| /* Relay UDT/all SCCP messages */ |
| /* |
| * (C) 2010-2011 by Holger Hans Peter Freyther <zecke@selfish.org> |
| * (C) 2010-2011 by On-Waves |
| * All Rights Reserved |
| * |
| * This program is free software: you can redistribute it and/or modify |
| * it under the terms of the GNU Affero General Public License as published by |
| * the Free Software Foundation, either version 3 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU Affero General Public License for more details. |
| * |
| * You should have received a copy of the GNU Affero General Public License |
| * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| * |
| */ |
| |
| #include <mtp_data.h> |
| #include <mtp_level3.h> |
| #include <mtp_pcap.h> |
| #include <thread.h> |
| #include <bsc_data.h> |
| #include <snmp_mtp.h> |
| #include <cellmgr_debug.h> |
| |
| #include <osmocore/talloc.h> |
| |
| #include <osmocom/vty/vty.h> |
| #include <osmocom/vty/telnet_interface.h> |
| |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| |
| #include <fcntl.h> |
| #include <signal.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <assert.h> |
| #include <unistd.h> |
| |
| #ifndef _GNU_SOURCE |
| #define _GNU_SOURCE |
| #endif |
| #include <getopt.h> |
| |
| #undef PACKAGE_NAME |
| #undef PACKAGE_VERSION |
| #undef PACKAGE_BUGREPORT |
| #undef PACKAGE_TARNAME |
| #undef PACKAGE_STRING |
| #include <cellmgr_config.h> |
| |
| static struct log_target *stderr_target; |
| |
| static char *config = "udt_relay.cfg"; |
| |
| struct bsc_data bsc; |
| extern void cell_vty_init(void); |
| |
| /* |
| * methods called from the MTP Level3 part |
| */ |
| void mtp_link_set_forward_sccp(struct mtp_link_set *link, struct msgb *_msg, int sls) |
| { |
| msc_send_direct(&bsc, _msg); |
| } |
| |
| void mtp_link_set_forward_isup(struct mtp_link_set *set, struct msgb *msg, int sls) |
| { |
| LOGP(DINP, LOGL_ERROR, "ISUP is not handled.\n"); |
| } |
| |
| void mtp_linkset_down(struct mtp_link_set *set) |
| { |
| set->available = 0; |
| mtp_link_set_stop(set); |
| |
| /* If we have an A link send a reset to the MSC */ |
| msc_send_reset(set->bsc); |
| } |
| |
| void mtp_linkset_up(struct mtp_link_set *set) |
| { |
| set->available = 1; |
| mtp_link_set_reset(set); |
| } |
| |
| static void print_usage() |
| { |
| printf("Usage: cellmgr_ng\n"); |
| } |
| |
| static void sigint() |
| { |
| static pthread_mutex_t exit_mutex = PTHREAD_MUTEX_INITIALIZER; |
| static int handled = 0; |
| |
| /* failed to lock */ |
| if (pthread_mutex_trylock(&exit_mutex) != 0) |
| return; |
| if (handled) |
| goto out; |
| |
| printf("Terminating.\n"); |
| handled = 1; |
| if (bsc.setup) |
| link_shutdown_all(bsc.link_set); |
| exit(0); |
| |
| out: |
| pthread_mutex_unlock(&exit_mutex); |
| } |
| |
| static void sigusr2() |
| { |
| printf("Closing the MSC connection on demand.\n"); |
| msc_close_connection(&bsc); |
| } |
| |
| static void print_help() |
| { |
| printf(" Some useful help...\n"); |
| printf(" -h --help this text\n"); |
| printf(" -c --config=CFG The config file to use.\n"); |
| printf(" -p --pcap=FILE. Write MSUs to the PCAP file.\n"); |
| printf(" -c --once. Send the SLTM msg only once.\n"); |
| printf(" -v --version. Print the version number\n"); |
| } |
| |
| static void handle_options(int argc, char **argv) |
| { |
| while (1) { |
| int option_index = 0, c; |
| static struct option long_options[] = { |
| {"help", 0, 0, 'h'}, |
| {"config", 1, 0, 'c'}, |
| {"pcap", 1, 0, 'p'}, |
| {"version", 0, 0, 0}, |
| {0, 0, 0, 0}, |
| }; |
| |
| c = getopt_long(argc, argv, "hc:p:v", |
| long_options, &option_index); |
| if (c == -1) |
| break; |
| |
| switch (c) { |
| case 'h': |
| print_usage(); |
| print_help(); |
| exit(0); |
| case 'p': |
| if (bsc.pcap_fd >= 0) |
| close(bsc.pcap_fd); |
| bsc.pcap_fd = open(optarg, O_WRONLY | O_TRUNC | O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP| S_IROTH); |
| if (bsc.pcap_fd < 0) { |
| fprintf(stderr, "Failed to open PCAP file.\n"); |
| exit(0); |
| } |
| mtp_pcap_write_header(bsc.pcap_fd); |
| break; |
| case 'c': |
| config = optarg; |
| break; |
| case 'v': |
| printf("This is %s version %s.\n", PACKAGE, VERSION); |
| exit(0); |
| break; |
| default: |
| fprintf(stderr, "Unknown option.\n"); |
| break; |
| } |
| } |
| } |
| |
| int main(int argc, char **argv) |
| { |
| int rc; |
| INIT_LLIST_HEAD(&bsc.sccp_connections); |
| |
| bsc.dpc = 1; |
| bsc.opc = 0; |
| bsc.sccp_opc = -1; |
| bsc.isup_opc = -1; |
| bsc.udp_port = 3456; |
| bsc.udp_ip = NULL; |
| bsc.src_port = 1313; |
| bsc.ni_ni = MTP_NI_NATION_NET; |
| bsc.ni_spare = 0; |
| |
| mtp_link_set_init(); |
| thread_init(); |
| |
| log_init(&log_info); |
| stderr_target = log_target_create_stderr(); |
| log_add_target(stderr_target); |
| |
| /* enable filters */ |
| log_set_all_filter(stderr_target, 1); |
| log_set_category_filter(stderr_target, DINP, 1, LOGL_INFO); |
| log_set_category_filter(stderr_target, DSCCP, 1, LOGL_INFO); |
| log_set_category_filter(stderr_target, DMSC, 1, LOGL_INFO); |
| log_set_category_filter(stderr_target, DMGCP, 1, LOGL_INFO); |
| log_set_print_timestamp(stderr_target, 1); |
| log_set_use_color(stderr_target, 0); |
| |
| sccp_set_log_area(DSCCP); |
| |
| bsc.setup = 0; |
| bsc.msc_address = "127.0.0.1"; |
| bsc.pcap_fd = -1; |
| bsc.udp_reset_timeout = 180; |
| bsc.ping_time = 20; |
| bsc.pong_time = 5; |
| bsc.msc_time = 20; |
| bsc.forward_only = 1; |
| |
| handle_options(argc, argv); |
| |
| signal(SIGPIPE, SIG_IGN); |
| signal(SIGINT, sigint); |
| signal(SIGUSR2, sigusr2); |
| srand(time(NULL)); |
| |
| cell_vty_init(); |
| if (vty_read_config_file(config, NULL) < 0) { |
| fprintf(stderr, "Failed to read the VTY config.\n"); |
| return -1; |
| } |
| |
| rc = telnet_init(NULL, NULL, 4242); |
| if (rc < 0) |
| return rc; |
| |
| if (link_init(&bsc) != 0) |
| return -1; |
| |
| while (1) { |
| bsc_select_main(0); |
| } |
| |
| return 0; |
| } |
| |
| void release_bsc_resources(struct bsc_data *bsc) |
| { |
| } |
| |
| struct msgb *create_sccp_rlc(struct sccp_source_reference *src_ref, |
| struct sccp_source_reference *dst) |
| { |
| LOGP(DMSC, LOGL_NOTICE, "Refusing to create connection handling.\n"); |
| return NULL; |
| } |
| |
| struct msgb *create_reset() |
| { |
| LOGP(DMSC, LOGL_NOTICE, "Refusing to create a GSM0808 reset message.\n"); |
| return NULL; |
| } |
| |
| void update_con_state(struct mtp_link_set *link, int rc, struct sccp_parse_result *res, struct msgb *msg, int from_msc, int sls) |
| { |
| LOGP(DMSC, LOGL_ERROR, "Should not be called.\n"); |
| return; |
| } |
| |
| unsigned int sls_for_src_ref(struct sccp_source_reference *ref) |
| { |
| return 13; |
| } |
| |
| int bsc_ussd_handle_in_msg(struct bsc_data *bsc, struct sccp_parse_result *res, struct msgb *msg) |
| { |
| return 0; |
| } |
| |
| int bsc_ussd_handle_out_msg(struct bsc_data *bsc, struct sccp_parse_result *res, struct msgb *msg) |
| { |
| return 0; |
| } |