From a6ce92b23c37519478b46428ad5e476fe553bf4e Mon Sep 17 00:00:00 2001 From: Neels Hofmeyr Date: Mon, 30 May 2016 14:57:14 +0200 Subject: osmo-nitb becomes osmo-cscn Change-Id: I3787050b524954d8a4dd13495c458f3ee293807b --- openbsc/.gitignore | 1 + openbsc/configure.ac | 4 +- openbsc/doc/examples/osmo-cscn/osmo-cscn.cfg | 36 ++ openbsc/src/Makefile.am | 2 +- openbsc/src/osmo-cscn/Makefile.am | 56 +++ openbsc/src/osmo-cscn/cscn_main.c | 520 +++++++++++++++++++++++++++ openbsc/src/osmo-cscn/iucs_ranap.c | 120 +++++++ openbsc/src/osmo-cscn/iucs_ranap.h | 7 + openbsc/src/osmo-nitb/Makefile.am | 47 --- openbsc/src/osmo-nitb/bsc_hack.c | 404 --------------------- 10 files changed, 743 insertions(+), 454 deletions(-) create mode 100644 openbsc/doc/examples/osmo-cscn/osmo-cscn.cfg create mode 100644 openbsc/src/osmo-cscn/Makefile.am create mode 100644 openbsc/src/osmo-cscn/cscn_main.c create mode 100644 openbsc/src/osmo-cscn/iucs_ranap.c create mode 100644 openbsc/src/osmo-cscn/iucs_ranap.h delete mode 100644 openbsc/src/osmo-nitb/Makefile.am delete mode 100644 openbsc/src/osmo-nitb/bsc_hack.c diff --git a/openbsc/.gitignore b/openbsc/.gitignore index 6fbd463ed..d7049d3bd 100644 --- a/openbsc/.gitignore +++ b/openbsc/.gitignore @@ -55,6 +55,7 @@ src/gprs/osmo-sgsn src/gprs/osmo-gbproxy src/gprs/osmo-gtphub src/osmo-bsc_nat/osmo-bsc_nat +src/osmo-cscn/osmo-cscn #tests tests/testsuite.dir diff --git a/openbsc/configure.ac b/openbsc/configure.ac index 80fefb5f1..bddb5cb12 100644 --- a/openbsc/configure.ac +++ b/openbsc/configure.ac @@ -47,7 +47,7 @@ fi AM_CONDITIONAL(BUILD_BSC, test "x$osmo_ac_build_bsc" = "xyes") AC_SUBST(osmo_ac_build_bsc) -# Enable/disable smpp support in the nitb? +# Enable/disable smpp support in the cscn? AC_ARG_ENABLE([smpp], [AS_HELP_STRING([--enable-smpp], [Build the SMPP interface])], [osmo_ac_build_smpp="$enableval"],[osmo_ac_build_smpp="no"]) if test "$osmo_ac_build_smpp" = "yes" ; then @@ -205,7 +205,7 @@ AC_OUTPUT( src/libfilter/Makefile src/libiu/Makefile src/libxsc/Makefile - src/osmo-nitb/Makefile + src/osmo-cscn/Makefile src/osmo-bsc/Makefile src/osmo-bsc_nat/Makefile src/osmo-bsc_mgcp/Makefile diff --git a/openbsc/doc/examples/osmo-cscn/osmo-cscn.cfg b/openbsc/doc/examples/osmo-cscn/osmo-cscn.cfg new file mode 100644 index 000000000..4ea893c27 --- /dev/null +++ b/openbsc/doc/examples/osmo-cscn/osmo-cscn.cfg @@ -0,0 +1,36 @@ +! +! OsmoCSCN configuration saved from vty +! +line vty + no login +! +network + network country code 1 + mobile network code 1 + short name OsmoCSCN + long name OsmoCSCN + auth policy closed + location updating reject cause 13 + encryption a5 0 + rrlp mode none + mm info 1 + handover 0 + handover window rxlev averaging 10 + handover window rxqual averaging 1 + handover window rxlev neighbor averaging 10 + handover power budget interval 6 + handover power budget hysteresis 3 + handover maximum distance 9999 + timer t3101 10 + timer t3103 0 + timer t3105 0 + timer t3107 0 + timer t3109 4 + timer t3111 0 + timer t3113 60 + timer t3115 0 + timer t3117 0 + timer t3119 0 + timer t3141 0 +cscn + subscriber-create-on-demand diff --git a/openbsc/src/Makefile.am b/openbsc/src/Makefile.am index df95f94cc..859d490bb 100644 --- a/openbsc/src/Makefile.am +++ b/openbsc/src/Makefile.am @@ -39,7 +39,7 @@ endif # Programs SUBDIRS += \ - osmo-nitb \ + osmo-cscn \ osmo-bsc_mgcp \ utils \ ipaccess \ diff --git a/openbsc/src/osmo-cscn/Makefile.am b/openbsc/src/osmo-cscn/Makefile.am new file mode 100644 index 000000000..8245a64e9 --- /dev/null +++ b/openbsc/src/osmo-cscn/Makefile.am @@ -0,0 +1,56 @@ +AM_CPPFLAGS = \ + $(all_includes) \ + -I$(top_srcdir)/include \ + -I$(top_builddir) \ + $(NULL) + +AM_CFLAGS = \ + -Wall \ + $(COVERAGE_CFLAGS) \ + $(LIBOSMOCORE_CFLAGS) \ + $(LIBOSMOGSM_CFLAGS) \ + $(LIBOSMOVTY_CFLAGS) \ + $(LIBOSMOCTRL_CFLAGS) \ + $(LIBOSMOABIS_CFLAGS) \ + $(LIBSMPP34_CFLAGS) \ + $(LIBOSMORANAP_CFLAGS) \ + $(LIBASN1C_CFLAGS) \ + $(LIBOSMOSIGTRAN_CFLAGS) \ + $(NULL) + +AM_LDFLAGS = \ + $(COVERAGE_LDFLAGS) \ + $(NULL) + +bin_PROGRAMS = \ + osmo-cscn \ + $(NULL) + +noinst_HEADERS = \ + iucs_ranap.h \ + $(NULL) + +osmo_cscn_SOURCES = \ + cscn_main.c \ + iucs_ranap.c \ + $(NULL) + +osmo_cscn_LDADD = \ + $(top_builddir)/src/libiu/libiu.a \ + $(top_builddir)/src/libmsc/libmsc.a \ + $(top_builddir)/src/libxsc/libxsc.a \ + $(top_builddir)/src/libtrau/libtrau.a \ + $(top_builddir)/src/libcommon/libcommon.a \ + $(LIBCRYPT) \ + $(LIBOSMOGSM_LIBS) \ + $(LIBOSMOVTY_LIBS) \ + $(LIBOSMOCORE_LIBS) \ + $(LIBOSMOCTRL_LIBS) \ + $(LIBOSMOABIS_LIBS) \ + $(LIBSMPP34_LIBS) \ + $(LIBCRYPTO_LIBS) \ + -ldbi \ + $(LIBOSMORANAP_LIBS) \ + $(LIBASN1C_LIBS) \ + $(LIBOSMOSIGTRAN_LIBS) \ + $(NULL) diff --git a/openbsc/src/osmo-cscn/cscn_main.c b/openbsc/src/osmo-cscn/cscn_main.c new file mode 100644 index 000000000..d42dbfc42 --- /dev/null +++ b/openbsc/src/osmo-cscn/cscn_main.c @@ -0,0 +1,520 @@ +/* OsmoCSCN - Circuit-Switched Core Network (MSC+VLR+HLR+SMSC) implementation + */ + +/* (C) 2016 by sysmocom s.f.m.c. GmbH + * All Rights Reserved + * + * Based on OsmoNITB: + * (C) 2008-2010 by Harald Welte + * (C) 2009-2012 by Holger Hans Peter Freyther + * 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 . + * + */ + +#include +#include +#include +#include +#include +#include + +#define _GNU_SOURCE +#include + +/* build switches from the configure script */ +#include "../../bscconfig.h" + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include "iucs_ranap.h" + +static const char * const osmocscn_copyright = + "OsmoCSCN - Osmocom Circuit-Switched Core Network implementation\r\n" + "Copyright (C) 2016 by sysmocom s.f.m.c. GmbH \r\n" + "Based on OsmoNITB:\r\n" + " (C) 2008-2010 by Harald Welte \r\n" + " (C) 2009-2012 by Holger Hans Peter Freyther \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 \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_cscn_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; +} cscn_cmdline_config = { + "hlr.sqlite3", + "osmo-cscn.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(" -a --authorize-everyone Authorize every new subscriber. Dangerous!\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 Disable built-in MNCC handler and offer socket.\n"); + printf(" -C --no-dbcounter Disable regular syncing of counters to database.\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'}, + {"authorize-everyone", 0, 0, 'a'}, + {"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:ar:p:TPVc:e:mCr:M:", + 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': + cscn_cmdline_config.daemonize = 1; + break; + case 'l': + cscn_cmdline_config.database_name = optarg; + break; + case 'c': + cscn_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': + cscn_cmdline_config.mncc_sock_path = optarg; + break; + case 'm': + cscn_cmdline_config.mncc_sock_path = "/tmp/bsc_mncc"; + break; + case 'C': + cscn_cmdline_config.use_db_counter = 0; + break; + case 'V': + print_version(1); + exit(0); + break; + default: + /* ignore */ + break; + } + } +} + +struct gsm_network *cscn_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, "OsmoCSCN"); + net->name_short = talloc_strdup(net, "OsmoCSCN"); + + return net; +} + +void cscn_network_shutdown(struct gsm_network *net) +{ + /* nothing here yet */ +} + +static struct gsm_network *cscn_network = NULL; + +/* TODO this is here to satisfy linking during intermediate development. Once + * libbsc is not linked to osmo-cscn, this should go away. */ +struct gsm_network *bsc_gsmnet = NULL; + +extern void *tall_vty_ctx; +static void signal_handler(int signal) +{ + fprintf(stdout, "signal %u received\n", signal); + + switch (signal) { + case SIGINT: + cscn_network_shutdown(cscn_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_cscn_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); +} + +static void subscr_expire_cb(void *data) +{ + subscr_expire(cscn_network->subscr_group); + osmo_timer_schedule(&cscn_network->subscr_expire_timer, EXPIRE_INTERVAL); +} + +extern int bsc_vty_go_parent(struct vty *vty); + +static struct vty_app_info cscn_vty_info = { + .name = "OsmoCSCN", + .version = PACKAGE_VERSION, + .go_parent_cb = bsc_vty_go_parent, + .is_config_node = bsc_vty_is_config_node, +}; + +static int rcvmsg_iu_cs(struct msgb *msg, struct gprs_ra_id *ra_id, /* FIXME gprs_ in CS code */ + 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(cscn_network, msg, ra_id? &ra_id->lac : NULL); +} + +static int rx_iu_event(struct ue_conn_ctx *ctx, enum iu_event_type type, + void *data) +{ + DEBUGP(DIUCS, "got IuCS event %u: %s\n", type, + iu_event_type_str(type)); + + return iucs_rx_ranap_event(cscn_network, ctx, type, data); +} + +int main(int argc, char **argv) +{ + int rc; + + cscn_vty_info.copyright = osmocscn_copyright; + + tall_cscn_ctx = talloc_named_const(NULL, 1, "osmo_cscn"); + talloc_ctx_init(tall_cscn_ctx); + + osmo_init_logging(&log_info); + osmo_stats_init(tall_cscn_ctx); + + handle_options(argc, argv); + + cscn_network = cscn_network_alloc(tall_cscn_ctx, + cscn_cmdline_config.mncc_sock_path? + mncc_sock_from_cc + : int_mncc_recv); + if (!cscn_network) + return -ENOMEM; + + vty_init(&cscn_vty_info); + ctrl_vty_init(tall_cscn_ctx); + logging_vty_add_cmds(&log_info); + cscn_vty_init(cscn_network); + bsc_vty_init_extra(); + +#ifdef BUILD_SMPP + if (smpp_openbsc_alloc_init(tall_cscn_ctx) < 0) + return -1; +#endif + + rc = vty_read_config_file(cscn_cmdline_config.config_file, NULL); + if (rc < 0) { + LOGP(DNM, LOGL_FATAL, "Failed to parse the config file: '%s'\n", + cscn_cmdline_config.config_file); + return 1; + } + + if (cscn_cmdline_config.mncc_sock_path) { + rc = mncc_sock_init(cscn_network, + cscn_cmdline_config.mncc_sock_path); + if (rc < 0) + 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_cscn_ctx, &cscn_network, + vty_get_bind_addr(), OSMO_VTY_PORT_CSCN); + 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. */ + +#if 0 + on_dso_load_token(); + on_dso_load_rrlp(); + on_dso_load_ho_dec(); + libosmo_abis_init(tall_cscn_ctx); + + bts_init(); +#endif + +#ifdef BUILD_SMPP + smpp_openbsc_start(cscn_network); +#endif + +#if 0 + bsc_api_init(cscn_network, msc_bsc_api()); // pobably not. +#endif + +#if 0 + the bsc_ctrl_node_lookup() only returns BSC specific ctrl nodes + + /* + * 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 http://osmocom.org/issues/1778. + * + * A third-party MSC may well be able to handle a TCH/H TCH/F + * mismatch. + */ + bsc_gsmnet->dyn_ts_allow_tch_f = false; + + /* start control interface after reading config for + * ctrl_vty_get_bind_addr() */ + LOGP(DNM, LOGL_NOTICE, "CTRL at %s %d\n", + ctrl_vty_get_bind_addr(), OSMO_CTRL_PORT_CSCN); + cscn_network->ctrl = bsc_controlif_setup(cscn_network, + ctrl_vty_get_bind_addr(), + OSMO_CTRL_PORT_CSCN); + if (!cscn_network->ctrl) { + printf("Failed to initialize control interface. Exiting.\n"); + return -1; + } +#endif + +#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 0 + if (msc_ctrl_cmds_install() != 0) { + printf("Failed to initialize the MSC control commands.\n"); + return -1; + } +#endif + + /* 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 0 + cscn_network->bsc_data->rf_ctrl = osmo_bsc_rf_create(rf_ctrl_name, cscn_network); + if (!cscn_network->bsc_data->rf_ctrl) { + fprintf(stderr, "Failed to create the RF service.\n"); + return 3; + } +#endif + + if (db_init(cscn_cmdline_config.database_name)) { + printf("DB: Failed to init database: %s\n", + cscn_cmdline_config.database_name); + return 4; + } + + if (db_prepare()) { + printf("DB: Failed to prepare database.\n"); + return 5; + } + + db_sync_timer.cb = db_sync_timer_cb; + db_sync_timer.data = NULL; + if (cscn_cmdline_config.use_db_counter) + osmo_timer_schedule(&db_sync_timer, DB_SYNC_INTERVAL); + + cscn_network->subscr_expire_timer.cb = subscr_expire_cb; + cscn_network->subscr_expire_timer.data = NULL; + osmo_timer_schedule(&cscn_network->subscr_expire_timer, EXPIRE_INTERVAL); + + signal(SIGINT, &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(cscn_network, 20) != 0) + return -1; + + /* Set up A-Interface */ + /* TODO: implement A-Interface and remove above legacy stuff. */ + + /* Set up IuCS */ + iu_init(tall_cscn_ctx, "127.0.0.1", 14001, rcvmsg_iu_cs, rx_iu_event); + + if (cscn_cmdline_config.daemonize) { + rc = osmo_daemonize(); + if (rc < 0) { + perror("Error during daemonize"); + return 6; + } + } + + while (1) { + log_reset_context(); + osmo_select_main(0); + } +} diff --git a/openbsc/src/osmo-cscn/iucs_ranap.c b/openbsc/src/osmo-cscn/iucs_ranap.c new file mode 100644 index 000000000..e76ef94cd --- /dev/null +++ b/openbsc/src/osmo-cscn/iucs_ranap.c @@ -0,0 +1,120 @@ +/* Implementation of RANAP messages to/from an MSC via an Iu-CS interface. + * This keeps direct RANAP dependencies out of libmsc. */ + +/* (C) 2016 by sysmocom s.m.f.c. GmbH + * + * 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 . + * + */ + + +#include + +#include + +#include +#include +#include +#include +#include + +#include "iucs_ranap.h" + +/* To continue authorization after a Security Mode Complete */ +int gsm0408_authorize(struct gsm_subscriber_connection *conn); + +static int iucs_rx_rab_assign(struct gsm_subscriber_connection *conn, + RANAP_RAB_SetupOrModifiedItemIEs_t *setup_ies) +{ + uint8_t rab_id; + RANAP_RAB_SetupOrModifiedItem_t *item = &setup_ies->raB_SetupOrModifiedItem; + + rab_id = item->rAB_ID.buf[0]; + + LOGP(DIUCS, LOGL_NOTICE, "Received RAB assignment event for %s" + " rab_id=%hhd\n", subscr_name(conn->subscr), rab_id); + /* TODO do stuff like in sgsn_ranap_rab_ass_resp() */ + + return 0; +} + +int iucs_rx_sec_mode_compl(struct gsm_subscriber_connection *conn, + RANAP_SecurityModeCompleteIEs_t *ies) +{ + gsm_cbfn *cb; + + OSMO_ASSERT(conn->via_iface == IFACE_IU); + + if (!conn->sec_operation) { + LOGP(DIUCS, LOGL_ERROR, + "Received Security Mode Complete message, but no" + " authentication/cipher operation in progress" + " for subscr %s\n", subscr_name(conn->subscr)); + return -EINVAL; + } + + /* TODO evalute ies */ + + if (conn->iu.integrity_protection) + LOGP(DIUCS, LOGL_NOTICE, "Integrity Protection" + " was already enabled for %s\n", + subscr_name(conn->subscr)); + + conn->iu.integrity_protection = INTEGRITY_PROTECTION_IK; + + cb = conn->sec_operation->cb; + if (cb) + cb(GSM_HOOK_RR_SECURITY, GSM_SECURITY_SUCCEEDED, NULL, + conn, conn->sec_operation->cb_data); + release_security_operation(conn); + return 0; +} + +int iucs_rx_ranap_event(struct gsm_network *network, + struct ue_conn_ctx *ue_ctx, int type, void *data) +{ + struct gsm_subscriber_connection *conn; + + conn = subscr_conn_lookup_iu(network, ue_ctx); + + if (!conn) { + LOGP(DRANAP, LOGL_ERROR, "Cannot find subscriber for IU event %u\n", type); + return -1; + } + + switch (type) { + case IU_EVENT_IU_RELEASE: + case IU_EVENT_LINK_INVALIDATED: + LOGP(DIUCS, LOGL_INFO, "IuCS release for %s\n", + subscr_name(conn->subscr)); + gsm0408_clear_request(conn, 0); + return 0; + + case IU_EVENT_SECURITY_MODE_COMPLETE: + LOGP(DIUCS, LOGL_INFO, "IuCS security mode complete for %s\n", + subscr_name(conn->subscr)); + return iucs_rx_sec_mode_compl(conn, + (RANAP_SecurityModeCompleteIEs_t*)data); + case IU_EVENT_RAB_ASSIGN: + return iucs_rx_rab_assign(conn, + (RANAP_RAB_SetupOrModifiedItemIEs_t*)data); + default: + LOGP(DIUCS, LOGL_NOTICE, "Unknown message received:" + " RANAP event: %i\n", type); + return -1; + } +} + diff --git a/openbsc/src/osmo-cscn/iucs_ranap.h b/openbsc/src/osmo-cscn/iucs_ranap.h new file mode 100644 index 000000000..c9fb255d3 --- /dev/null +++ b/openbsc/src/osmo-cscn/iucs_ranap.h @@ -0,0 +1,7 @@ +#pragma once + +struct ue_conn_ctx; + +int iucs_rx_ranap_event(struct gsm_network *network, + struct ue_conn_ctx *ue_ctx, int type, void *data); + diff --git a/openbsc/src/osmo-nitb/Makefile.am b/openbsc/src/osmo-nitb/Makefile.am deleted file mode 100644 index 3b1b531ad..000000000 --- a/openbsc/src/osmo-nitb/Makefile.am +++ /dev/null @@ -1,47 +0,0 @@ -AM_CPPFLAGS = \ - $(all_includes) \ - -I$(top_srcdir)/include \ - -I$(top_builddir) \ - $(NULL) - -AM_CFLAGS = \ - -Wall \ - $(COVERAGE_CFLAGS) \ - $(LIBOSMOCORE_CFLAGS) \ - $(LIBOSMOGSM_CFLAGS) \ - $(LIBOSMOVTY_CFLAGS) \ - $(LIBOSMOCTRL_CFLAGS) \ - $(LIBOSMOABIS_CFLAGS) \ - $(LIBSMPP34_CFLAGS) \ - $(NULL) - -AM_LDFLAGS = \ - $(COVERAGE_LDFLAGS) \ - $(NULL) - -bin_PROGRAMS = \ - osmo-nitb \ - $(NULL) - -osmo_nitb_SOURCES = \ - bsc_hack.c \ - $(top_builddir)/tests/libiudummy/iudummy.c \ - $(NULL) -# libiudummy is temporary until iu_tx() and the ranap libs are linked - -osmo_nitb_LDADD = \ - $(top_builddir)/src/libbsc/libbsc.a \ - $(top_builddir)/src/libxsc/libxsc.a \ - $(top_builddir)/src/libmsc/libmsc.a \ - $(top_builddir)/src/libtrau/libtrau.a \ - $(top_builddir)/src/libcommon/libcommon.a \ - $(LIBCRYPT) \ - $(LIBOSMOGSM_LIBS) \ - $(LIBOSMOVTY_LIBS) \ - $(LIBOSMOCORE_LIBS) \ - $(LIBOSMOCTRL_LIBS) \ - $(LIBOSMOABIS_LIBS) \ - $(LIBSMPP34_LIBS) \ - $(LIBCRYPTO_LIBS) \ - -ldbi \ - $(NULL) diff --git a/openbsc/src/osmo-nitb/bsc_hack.c b/openbsc/src/osmo-nitb/bsc_hack.c deleted file mode 100644 index 83c807153..000000000 --- a/openbsc/src/osmo-nitb/bsc_hack.c +++ /dev/null @@ -1,404 +0,0 @@ -/* A hackish minimal BSC (+MSC +HLR) implementation */ - -/* (C) 2008-2010 by Harald Welte - * (C) 2009-2012 by Holger Hans Peter Freyther - * 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 . - * - */ - -#include -#include -#include -#include -#include -#include - -#define _GNU_SOURCE -#include - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "../../bscconfig.h" - -/* MCC and MNC for the Location Area Identifier */ -struct gsm_network *bsc_gsmnet = 0; -static const char *database_name = "hlr.sqlite3"; -static const char *config_file = "openbsc.cfg"; -static const char *rf_ctrl_path = NULL; -extern const char *openbsc_copyright; -static int daemonize = 0; -static const char *mncc_sock_path = NULL; -static int use_db_counter = 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(" -a --authorize-everyone Authorize every new subscriber. Dangerous!\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"); -} - -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'}, - {"authorize-everyone", 0, 0, 'a'}, - {"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'}, - {"rf-ctl", 1, 0, 'r'}, - {0, 0, 0, 0} - }; - - c = getopt_long(argc, argv, "hd:Dsl:ar:p:TPVc:e:mCr:M:", - 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': - daemonize = 1; - break; - case 'l': - database_name = optarg; - break; - case 'c': - config_file = optarg; - break; - case 'p': - create_pcap_file(optarg); - break; - case 'T': - log_set_print_timestamp(osmo_stderr_target, 1); - break; - case 'P': - ipacc_rtp_direct = 0; - break; - case 'e': - log_set_log_level(osmo_stderr_target, atoi(optarg)); - break; - case 'M': - mncc_sock_path = optarg; - break; - case 'm': - mncc_sock_path = "/tmp/bsc_mncc"; - break; - case 'C': - use_db_counter = 0; - break; - case 'V': - print_version(1); - exit(0); - break; - case 'r': - rf_ctrl_path = optarg; - break; - default: - /* catch unknown options *as well as* missing arguments. */ - fprintf(stderr, "Error in command line options. Exiting.\n"); - exit(-1); - break; - } - } -} - -extern void *tall_vty_ctx; -static void signal_handler(int signal) -{ - fprintf(stdout, "signal %u received\n", signal); - - switch (signal) { - case SIGINT: - bsc_shutdown_net(bsc_gsmnet); - 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_bsc_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); -} - -static void subscr_expire_cb(void *data) -{ - subscr_expire(bsc_gsmnet->subscr_group); - osmo_timer_schedule(&bsc_gsmnet->subscr_expire_timer, EXPIRE_INTERVAL); -} - -extern int bsc_vty_go_parent(struct vty *vty); - -static struct vty_app_info vty_info = { - .name = "OpenBSC", - .version = PACKAGE_VERSION, - .go_parent_cb = bsc_vty_go_parent, - .is_config_node = bsc_vty_is_config_node, -}; - -int main(int argc, char **argv) -{ - int rc; - - vty_info.copyright = openbsc_copyright; - - tall_bsc_ctx = talloc_named_const(NULL, 1, "openbsc"); - talloc_ctx_init(tall_bsc_ctx); - on_dso_load_token(); - on_dso_load_rrlp(); - on_dso_load_ho_dec(); - - libosmo_abis_init(tall_bsc_ctx); - osmo_init_logging(&log_info); - osmo_stats_init(tall_bsc_ctx); - bts_init(); - - /* This needs to precede handle_options() */ - vty_init(&vty_info); - bsc_vty_init(&log_info, bsc_gsmnet); - ctrl_vty_init(tall_bsc_ctx); - -#ifdef BUILD_SMPP - if (smpp_openbsc_alloc_init(tall_bsc_ctx) < 0) - return -1; -#endif - - /* parse options */ - handle_options(argc, argv); - - /* internal MNCC handler or MNCC socket? */ - if (mncc_sock_path) { - rc = bsc_network_alloc(mncc_sock_from_cc); - if (rc) { - fprintf(stderr, "Allocation failed. Exiting.\n"); - exit(1); - } - rc = mncc_sock_init(bsc_gsmnet, mncc_sock_path); - if (rc) { - fprintf(stderr, "MNCC socket initialization failed. exiting.\n"); - exit(1); - } - } else { - DEBUGP(DMNCC, "Using internal MNCC handler.\n"); - rc = bsc_network_alloc(int_mncc_recv); - if (rc) { - fprintf(stderr, "Allocation failed. Exiting.\n"); - exit(1); - } - } - rc = bsc_network_configure(config_file); - if (rc < 0) { - fprintf(stderr, "Reading config failed. Exiting.\n"); - exit(1); - } - -#ifdef BUILD_SMPP - smpp_openbsc_start(bsc_gsmnet); -#endif - bsc_api_init(bsc_gsmnet, msc_bsc_api()); - - /* - * 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 http://osmocom.org/issues/1778. - * - * A third-party MSC may well be able to handle a TCH/H TCH/F - * mismatch. - */ - bsc_gsmnet->dyn_ts_allow_tch_f = false; - - /* start control interface after reading config for - * ctrl_vty_get_bind_addr() */ - LOGP(DNM, LOGL_NOTICE, "CTRL at %s %d\n", - ctrl_vty_get_bind_addr(), OSMO_CTRL_PORT_NITB_BSC); - bsc_gsmnet->ctrl = bsc_controlif_setup(bsc_gsmnet, - ctrl_vty_get_bind_addr(), - OSMO_CTRL_PORT_NITB_BSC); - if (!bsc_gsmnet->ctrl) { - printf("Failed to initialize control interface. Exiting.\n"); - return -1; - } - - if (bsc_base_ctrl_cmds_install() != 0) { - printf("Failed to initialize the BSC control commands.\n"); - return -1; - } - - if (msc_ctrl_cmds_install() != 0) { - printf("Failed to initialize the MSC control commands.\n"); - return -1; - } - - /* seed the PRNG */ - srand(time(NULL)); - - bsc_gsmnet->bsc_data->rf_ctrl = osmo_bsc_rf_create(rf_ctrl_path, bsc_gsmnet); - if (!bsc_gsmnet->bsc_data->rf_ctrl) { - fprintf(stderr, "Failed to create the RF service.\n"); - exit(1); - } - - if (db_init(database_name)) { - printf("DB: Failed to init database. Please check the option settings.\n"); - return -1; - } - printf("DB: Database initialized.\n"); - - if (db_prepare()) { - printf("DB: Failed to prepare database.\n"); - return -1; - } - printf("DB: Database prepared.\n"); - - /* setup the timer */ - db_sync_timer.cb = db_sync_timer_cb; - db_sync_timer.data = NULL; - if (use_db_counter) - osmo_timer_schedule(&db_sync_timer, DB_SYNC_INTERVAL); - - bsc_gsmnet->subscr_expire_timer.cb = subscr_expire_cb; - bsc_gsmnet->subscr_expire_timer.data = NULL; - osmo_timer_schedule(&bsc_gsmnet->subscr_expire_timer, EXPIRE_INTERVAL); - - signal(SIGINT, &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(bsc_gsmnet, 20) != 0) - return -1; - - if (daemonize) { - rc = osmo_daemonize(); - if (rc < 0) { - perror("Error during daemonize"); - exit(1); - } - } - - while (1) { - log_reset_context(); - osmo_select_main(0); - } -} -- cgit v1.2.3