diff options
Diffstat (limited to 'src/osmo-msc/msc_main.c')
-rw-r--r-- | src/osmo-msc/msc_main.c | 589 |
1 files changed, 0 insertions, 589 deletions
diff --git a/src/osmo-msc/msc_main.c b/src/osmo-msc/msc_main.c deleted file mode 100644 index 30b11d983..000000000 --- a/src/osmo-msc/msc_main.c +++ /dev/null @@ -1,589 +0,0 @@ -/* OsmoMSC - Circuit-Switched Core Network (MSC+VLR+HLR+SMSC) implementation - */ - -/* (C) 2016 by sysmocom s.f.m.c. GmbH <info@sysmocom.de> - * All Rights Reserved - * - * Based on OsmoNITB: - * (C) 2008-2010 by Harald Welte <laforge@gnumonks.org> - * (C) 2009-2012 by Holger Hans Peter Freyther <zecke@selfish.org> - * 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 <unistd.h> -#include <time.h> -#include <errno.h> -#include <signal.h> -#include <fcntl.h> -#include <sys/stat.h> - -#define _GNU_SOURCE -#include <getopt.h> - -/* build switches from the configure script */ -#include "../../bscconfig.h" - -#include <openbsc/db.h> -#include <osmocom/core/application.h> -#include <osmocom/core/select.h> -#include <osmocom/core/stats.h> -#include <openbsc/debug.h> -#include <osmocom/abis/abis.h> -#include <osmocom/abis/e1_input.h> -#include <osmocom/core/talloc.h> -#include <openbsc/signal.h> -#include <openbsc/osmo_msc.h> -#include <openbsc/bsc_msc_data.h> -#include <openbsc/sms_queue.h> -#include <osmocom/vty/telnet_interface.h> -#include <osmocom/vty/ports.h> -#include <osmocom/vty/logging.h> -#include <openbsc/vty.h> -#include <openbsc/bss.h> -#include <openbsc/mncc.h> -#include <openbsc/handover_decision.h> -#include <openbsc/rrlp.h> -#include <osmocom/ctrl/control_if.h> -#include <osmocom/ctrl/control_vty.h> -#include <osmocom/ctrl/ports.h> -#include <openbsc/ctrl.h> -#include <openbsc/osmo_bsc_rf.h> -#include <openbsc/smpp.h> -#include <osmocom/sigtran/osmo_ss7.h> -#include <osmocom/legacy_mgcp/mgcpgw_client.h> - -#ifdef BUILD_IU -#include <osmocom/ranap/iu_client.h> -#endif - -#include <openbsc/msc_ifaces.h> -#include <openbsc/iucs.h> -#include <openbsc/iucs_ranap.h> -#include <openbsc/a_iface.h> - -static const char * const osmomsc_copyright = - "OsmoMSC - Osmocom Circuit-Switched Core Network implementation\r\n" - "Copyright (C) 2016 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>\r\n" - "Based on OsmoNITB:\r\n" - " (C) 2008-2010 by Harald Welte <laforge@gnumonks.org>\r\n" - " (C) 2009-2012 by Holger Hans Peter Freyther <zecke@selfish.org>\r\n" - "Contributions by Daniel Willmann, Jan Lübbe, Stefan Schmidt\r\n" - "Dieter Spaar, Andreas Eversberg, Sylvain Munaut, Neels Hofmeyr\r\n\r\n" - "License AGPLv3+: GNU AGPL version 3 or later <http://gnu.org/licenses/agpl-3.0.html>\r\n" - "This is free software: you are free to change and redistribute it.\r\n" - "There is NO WARRANTY, to the extent permitted by law.\r\n"; - -void *tall_msc_ctx = NULL; - -/* satisfy deps from libbsc legacy. - TODO double check these */ -void *tall_fle_ctx = NULL; -void *tall_paging_ctx = NULL; -void *tall_map_ctx = NULL; -void *tall_upq_ctx = NULL; -/* end deps from libbsc legacy. */ - -static struct { - const char *database_name; - const char *config_file; - int daemonize; - const char *mncc_sock_path; - int use_db_counter; -} msc_cmdline_config = { - "sms.db", - "osmo-msc.cfg", - 0, - 0, - 1 -}; - -/* timer to store statistics */ -#define DB_SYNC_INTERVAL 60, 0 -#define EXPIRE_INTERVAL 10, 0 - -static struct osmo_timer_list db_sync_timer; - -static void create_pcap_file(char *file) -{ - mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH; - int fd = open(file, O_WRONLY|O_TRUNC|O_CREAT, mode); - - if (fd < 0) { - perror("Failed to open file for pcap"); - return; - } - - e1_set_pcap_fd(fd); -} - -static void print_usage() -{ - printf("Usage: osmo-nitb\n"); -} - -static void print_help() -{ - printf(" Some useful help...\n"); - printf(" -h --help This text.\n"); - printf(" -d option --debug=DRLL:DCC:DMM:DRR:DRSL:DNM Enable debugging.\n"); - printf(" -D --daemonize Fork the process into a background daemon.\n"); - printf(" -c --config-file filename The config file to use.\n"); - printf(" -s --disable-color\n"); - printf(" -l --database db-name The database to use.\n"); - printf(" -T --timestamp Prefix every log line with a timestamp.\n"); - printf(" -V --version Print the version of OpenBSC.\n"); - printf(" -P --rtp-proxy Enable the RTP Proxy code inside OpenBSC.\n"); - printf(" -e --log-level number Set a global loglevel.\n"); - printf(" -M --mncc-sock-path PATH Disable built-in MNCC handler and offer socket.\n"); - printf(" -m --mncc-sock Same as `-M /tmp/bsc_mncc' (deprecated).\n"); - printf(" -C --no-dbcounter Disable regular syncing of counters to database.\n"); - printf(" -r --rf-ctl PATH A unix domain socket to listen for cmds.\n"); - printf(" -p --pcap PATH Write abis communication to pcap trace file.\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'}, - {"debug", 1, 0, 'd'}, - {"daemonize", 0, 0, 'D'}, - {"config-file", 1, 0, 'c'}, - {"disable-color", 0, 0, 's'}, - {"database", 1, 0, 'l'}, - {"pcap", 1, 0, 'p'}, - {"timestamp", 0, 0, 'T'}, - {"version", 0, 0, 'V' }, - {"rtp-proxy", 0, 0, 'P'}, - {"log-level", 1, 0, 'e'}, - {"mncc-sock", 0, 0, 'm'}, - {"mncc-sock-path", 1, 0, 'M'}, - {"no-dbcounter", 0, 0, 'C'}, - {0, 0, 0, 0} - }; - - c = getopt_long(argc, argv, "hd:Dsl:ap:TPVc:e:mCM:", - long_options, &option_index); - if (c == -1) - break; - - switch (c) { - case 'h': - print_usage(); - print_help(); - exit(0); - case 's': - log_set_use_color(osmo_stderr_target, 0); - break; - case 'd': - log_parse_category_mask(osmo_stderr_target, optarg); - break; - case 'D': - msc_cmdline_config.daemonize = 1; - break; - case 'l': - msc_cmdline_config.database_name = optarg; - break; - case 'c': - msc_cmdline_config.config_file = optarg; - break; - case 'p': - create_pcap_file(optarg); - break; - case 'T': - log_set_print_timestamp(osmo_stderr_target, 1); - break; -#if BEFORE_MSCSPLIT - case 'P': - ipacc_rtp_direct = 0; - break; -#endif - case 'e': - log_set_log_level(osmo_stderr_target, atoi(optarg)); - break; - case 'M': - msc_cmdline_config.mncc_sock_path = optarg; - break; - case 'm': - msc_cmdline_config.mncc_sock_path = "/tmp/bsc_mncc"; - break; - case 'C': - msc_cmdline_config.use_db_counter = 0; - break; - case 'V': - print_version(1); - exit(0); - break; - default: - /* catch unknown options *as well as* missing arguments. */ - fprintf(stderr, "Error in command line options. Exiting.\n"); - exit(-1); - } - } -} - -struct gsm_network *msc_network_alloc(void *ctx, - mncc_recv_cb_t mncc_recv) -{ - struct gsm_network *net = gsm_network_init(ctx, 1, 1, mncc_recv); - if (!net) - return NULL; - - net->name_long = talloc_strdup(net, "OsmoMSC"); - net->name_short = talloc_strdup(net, "OsmoMSC"); - - net->gsup_server_addr_str = talloc_strdup(net, - MSC_HLR_REMOTE_IP_DEFAULT); - net->gsup_server_port = MSC_HLR_REMOTE_PORT_DEFAULT; - - mgcpgw_client_conf_init(&net->mgcpgw.conf); - - return net; -} - -void msc_network_shutdown(struct gsm_network *net) -{ - /* nothing here yet */ -} - -static struct gsm_network *msc_network = NULL; - -extern void *tall_vty_ctx; -static void signal_handler(int signal) -{ - fprintf(stdout, "signal %u received\n", signal); - - switch (signal) { - case SIGINT: - case SIGTERM: - msc_network_shutdown(msc_network); - osmo_signal_dispatch(SS_L_GLOBAL, S_L_GLOBAL_SHUTDOWN, NULL); - sleep(3); - exit(0); - break; - case SIGABRT: - osmo_generate_backtrace(); - /* in case of abort, we want to obtain a talloc report - * and then return to the caller, who will abort the process */ - case SIGUSR1: - talloc_report(tall_vty_ctx, stderr); - talloc_report_full(tall_msc_ctx, stderr); - break; - case SIGUSR2: - talloc_report_full(tall_vty_ctx, stderr); - break; - default: - break; - } -} - -/* timer handling */ -static int _db_store_counter(struct osmo_counter *counter, void *data) -{ - return db_store_counter(counter); -} - -static void db_sync_timer_cb(void *data) -{ - /* store counters to database and re-schedule */ - osmo_counters_for_each(_db_store_counter, NULL); - osmo_timer_schedule(&db_sync_timer, DB_SYNC_INTERVAL); -} - -extern int bsc_vty_go_parent(struct vty *vty); - -static struct vty_app_info msc_vty_info = { - .name = "OsmoMSC", - .version = PACKAGE_VERSION, - .go_parent_cb = bsc_vty_go_parent, - .is_config_node = bsc_vty_is_config_node, -}; - -#ifdef BUILD_IU -static int rcvmsg_iu_cs(struct msgb *msg, struct gprs_ra_id *ra_id, uint16_t *sai) -{ - DEBUGP(DIUCS, "got IuCS message" - " %d bytes: %s\n", - msg->len, osmo_hexdump(msg->data, msg->len)); - if (ra_id) { - DEBUGP(DIUCS, "got IuCS message on" - " MNC %d MCC %d LAC %d RAC %d\n", - ra_id->mnc, ra_id->mcc, ra_id->lac, ra_id->rac); - } - - return gsm0408_rcvmsg_iucs(msc_network, msg, ra_id? &ra_id->lac : NULL); -} - -static int rx_iu_event(struct ranap_ue_conn_ctx *ctx, enum ranap_iu_event_type type, - void *data) -{ - DEBUGP(DIUCS, "got IuCS event %u: %s\n", type, - ranap_iu_event_type_str(type)); - - return iucs_rx_ranap_event(msc_network, ctx, type, data); -} -#endif - -#define DEFAULT_M3UA_REMOTE_IP "127.0.0.1" -#define DEFAULT_PC_A "0.23.1" -#define DEFAULT_PC_IU "0.23.2" -#define DEFAULT_PC_A_IU DEFAULT_PC_A - -static struct osmo_sccp_instance *sccp_setup(void *ctx, uint32_t cs7_instance, - const char *label, const char *default_pc_str) -{ - int default_pc = osmo_ss7_pointcode_parse(NULL, default_pc_str); - if (default_pc < 0) - return NULL; - - return osmo_sccp_simple_client_on_ss7_id(ctx, cs7_instance, label, default_pc, - OSMO_SS7_ASP_PROT_M3UA, - 0, NULL, /* local: use arbitrary port and 0.0.0.0. */ - 0, /* remote: use protocol default port */ - DEFAULT_M3UA_REMOTE_IP); - /* Note: If a differing remote IP is to be used, it was already entered in the vty config at - * 'cs7' / 'asp' / 'remote-ip', and this default remote IP has no effect. - * Similarly, 'cs7' / 'listen' can specify the local IP address. */ -} - -static int ss7_setup(void *ctx) -{ - uint32_t cs7_instance_a = msc_network->a.cs7_instance; -#if BUILD_IU - uint32_t cs7_instance_iu = msc_network->iu.cs7_instance; - - if (cs7_instance_a == cs7_instance_iu) { - /* Create one single SCCP instance which will be used for both, - * Iu and A at the same time, under the same point-code */ - LOGP(DMSC, LOGL_NOTICE, "CS7 Instance identifiers: A = Iu = %u\n", cs7_instance_a); - - msc_network->a.sccp = sccp_setup(ctx, cs7_instance_a, "OsmoMSC-A-Iu", DEFAULT_PC_A_IU); - if (!msc_network->a.sccp) - return -EINVAL; - - msc_network->iu.sccp = msc_network->a.sccp; - } else { - /* Create two separate SCCP instances to run A and Iu independently on different - * pointcodes */ - LOGP(DMSC, LOGL_NOTICE, "CS7 Instance identifiers: A = %u, Iu = %u\n", - cs7_instance_a, cs7_instance_iu); - - msc_network->a.sccp = sccp_setup(ctx, cs7_instance_a, "OsmoMSC-A", DEFAULT_PC_A); - if (!msc_network->a.sccp) - return -EINVAL; - - msc_network->iu.sccp = sccp_setup(ctx, cs7_instance_iu, "OsmoMSC-Iu", DEFAULT_PC_IU); - if (!msc_network->iu.sccp) - return -EINVAL; - } -#else - /* No Iu support, just open up an A instance */ - msc_network->a.sccp = sccp_setup(ctx, cs7_instance_a, "OsmoMSC-A", DEFAULT_PC_A); - if (!msc_network->a.sccp) - return -EINVAL; -#endif - - return 0; -} - -int main(int argc, char **argv) -{ - int rc; - - msc_vty_info.copyright = osmomsc_copyright; - - tall_msc_ctx = talloc_named_const(NULL, 1, "osmo_msc"); - talloc_ctx_init(tall_msc_ctx); - - osmo_init_logging(&log_info); - osmo_stats_init(tall_msc_ctx); - - /* For --version, vty_init() must be called before handling options */ - vty_init(&msc_vty_info); - - osmo_ss7_init(); - osmo_ss7_vty_init_asp(tall_msc_ctx); - - /* Parse options */ - handle_options(argc, argv); - - /* Allocate global gsm_network struct; choose socket/internal MNCC */ - msc_network = msc_network_alloc(tall_msc_ctx, - msc_cmdline_config.mncc_sock_path? - mncc_sock_from_cc - : int_mncc_recv); - if (!msc_network) - return -ENOMEM; - - if (msc_vlr_alloc(msc_network)) { - fprintf(stderr, "Failed to allocate VLR\n"); - exit(1); - } - - ctrl_vty_init(tall_msc_ctx); - logging_vty_add_cmds(&log_info); - msc_vty_init(msc_network); - bsc_vty_init_extra(); - -#ifdef BUILD_SMPP - if (smpp_openbsc_alloc_init(tall_msc_ctx) < 0) - return -1; -#endif - - /* - * For osmo-nitb, skip TCH/F for now, because otherwise dyn TS - * always imply the possibility to have a mix of TCH/F and - * TCH/H channels; if two phones request a TCH/F and a TCH/H, - * respectively, they cannot call each other. If we deny TCH/F, - * they will both fall back to TCH/H, and dynamic channels are - * usable. See OS#1778. - * - * A third-party MSC may well be able to handle a TCH/H TCH/F - * mismatch. Moreover, this option may be overwritten in the - * config file or in VTY. - */ - msc_network->dyn_ts_allow_tch_f = false; - - rc = vty_read_config_file(msc_cmdline_config.config_file, NULL); - if (rc < 0) { - LOGP(DNM, LOGL_FATAL, "Failed to parse the config file: '%s'\n", - msc_cmdline_config.config_file); - return 1; - } - - /* Initialize MNCC socket if appropriate */ - if (msc_cmdline_config.mncc_sock_path) { - rc = mncc_sock_init(msc_network, - msc_cmdline_config.mncc_sock_path); - if (rc) { - fprintf(stderr, "MNCC socket initialization failed. exiting.\n"); - exit(1); - } - } else - DEBUGP(DMNCC, "Using internal MNCC handler.\n"); - - /* start telnet after reading config for vty_get_bind_addr() */ - rc = telnet_init_dynif(tall_msc_ctx, &msc_network, - vty_get_bind_addr(), OSMO_VTY_PORT_MSC); - if (rc < 0) - return 2; - - /* BSC stuff is to be split behind an A-interface to be used with - * OsmoBSC, but there is no need to remove it yet. Most of the - * following code until iu_init() is legacy. */ - -#ifdef BUILD_SMPP - smpp_openbsc_start(msc_network); -#endif - - /* start control interface after reading config for - * ctrl_vty_get_bind_addr() */ - msc_network->ctrl = ctrl_interface_setup_dynip(msc_network, ctrl_vty_get_bind_addr(), - OSMO_CTRL_PORT_MSC, NULL); - if (!msc_network->ctrl) { - printf("Failed to initialize control interface. Exiting.\n"); - return -1; - } - -#if 0 -TODO: we probably want some of the _net_ ctrl commands from bsc_base_ctrl_cmds_install(). - if (bsc_base_ctrl_cmds_install() != 0) { - printf("Failed to initialize the BSC control commands.\n"); - return -1; - } -#endif - - if (msc_ctrl_cmds_install(msc_network) != 0) { - printf("Failed to initialize the MSC control commands.\n"); - return -1; - } - - /* seed the PRNG */ - srand(time(NULL)); - /* TODO: is this used for crypto?? Improve randomness, at least we - * should try to use the nanoseconds part of the current time. */ - - if (db_init(msc_cmdline_config.database_name)) { - printf("DB: Failed to init database: %s\n", - msc_cmdline_config.database_name); - return 4; - } - - osmo_fsm_log_addr(true); - if (msc_vlr_start(msc_network)) { - fprintf(stderr, "Failed to start VLR\n"); - exit(1); - } - - msc_subscr_conn_init(); - - if (db_prepare()) { - printf("DB: Failed to prepare database.\n"); - return 5; - } - - /* setup the timer */ - osmo_timer_setup(&db_sync_timer, db_sync_timer_cb, NULL); - if (msc_cmdline_config.use_db_counter) - osmo_timer_schedule(&db_sync_timer, DB_SYNC_INTERVAL); - - signal(SIGINT, &signal_handler); - signal(SIGTERM, &signal_handler); - signal(SIGABRT, &signal_handler); - signal(SIGUSR1, &signal_handler); - signal(SIGUSR2, &signal_handler); - osmo_init_ignore_signals(); - - /* start the SMS queue */ - if (sms_queue_start(msc_network, 20) != 0) - return -1; - - msc_network->mgcpgw.client = mgcpgw_client_init( - msc_network, &msc_network->mgcpgw.conf); - - if (mgcpgw_client_connect(msc_network->mgcpgw.client)) { - printf("MGCPGW connect failed\n"); - return 7; - } - - if (ss7_setup(tall_msc_ctx)) { - printf("Setting up SCCP client failed.\n"); - return 8; - } - -#ifdef BUILD_IU - /* Set up IuCS */ - ranap_iu_init(tall_msc_ctx, DRANAP, "OsmoMSC-IuCS", msc_network->iu.sccp, rcvmsg_iu_cs, rx_iu_event); -#endif - - /* Set up A interface */ - a_init(msc_network->a.sccp, msc_network); - - if (msc_cmdline_config.daemonize) { - rc = osmo_daemonize(); - if (rc < 0) { - perror("Error during daemonize"); - return 6; - } - } - - while (1) { - log_reset_context(); - osmo_select_main(0); - } -} |