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authorHarald Welte <laforge@gnumonks.org>2012-06-06 23:31:06 +0800
committerHarald Welte <laforge@gnumonks.org>2015-11-15 14:15:19 +0100
commit9e389ff467ecb4e37193131a6e8f55b20b55551a (patch)
tree6a0f60e69df0afba63b39eb3e79650969f821125 /openbsc/src/osmo-mss
parent55747d3c358aa3e2739d5d09422e2798d426c87f (diff)
experinmental and incomplete hack trying to build separate MSC
Diffstat (limited to 'openbsc/src/osmo-mss')
-rw-r--r--openbsc/src/osmo-mss/Makefile.am15
-rw-r--r--openbsc/src/osmo-mss/mss_hack.c307
-rw-r--r--openbsc/src/osmo-mss/stubs.c104
3 files changed, 426 insertions, 0 deletions
diff --git a/openbsc/src/osmo-mss/Makefile.am b/openbsc/src/osmo-mss/Makefile.am
new file mode 100644
index 000000000..450741d70
--- /dev/null
+++ b/openbsc/src/osmo-mss/Makefile.am
@@ -0,0 +1,15 @@
+INCLUDES = $(all_includes) -I$(top_srcdir)/include -I$(top_builddir)
+AM_CFLAGS=-Wall $(LIBOSMOCORE_CFLAGS) $(LIBOSMOGSM_CFLAGS) $(LIBOSMOVTY_CFLAGS) $(LIBOSMOABIS_CFLAGS) $(COVERAGE_CFLAGS)
+AM_LDFLAGS = $(COVERAGE_LDFLAGS)
+
+bin_PROGRAMS = osmo-mss
+
+osmo_mss_SOURCES = mss_hack.c stubs.c
+osmo_mss_LDADD = \
+ $(top_builddir)/src/libbsc/gsm_subscriber_base.o \
+ $(top_builddir)/src/libmsc/libmsc.a \
+ $(top_builddir)/src/libtrau/libtrau.a \
+ $(top_builddir)/src/libctrl/libctrl.a \
+ $(top_builddir)/src/libcommon/libcommon.a \
+ -ldbi -ldl $(LIBCRYPT) $(LIBOSMOGSM_LIBS) \
+ $(LIBOSMOVTY_LIBS) $(LIBOSMOABIS_LIBS) $(LIBOSMOCORE_LIBS)
diff --git a/openbsc/src/osmo-mss/mss_hack.c b/openbsc/src/osmo-mss/mss_hack.c
new file mode 100644
index 000000000..e26e89b0d
--- /dev/null
+++ b/openbsc/src/osmo-mss/mss_hack.c
@@ -0,0 +1,307 @@
+/* A hackish minimal MSC+HLR implementation */
+
+/* (C) 2008-2012 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>
+
+#include <openbsc/db.h>
+#include <osmocom/core/application.h>
+#include <osmocom/core/select.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/sms_queue.h>
+#include <openbsc/vty.h>
+#include <openbsc/bss.h>
+#include <openbsc/mncc.h>
+#include <openbsc/token_auth.h>
+#include <openbsc/handover_decision.h>
+#include <openbsc/rrlp.h>
+#include <openbsc/control_if.h>
+#include <openbsc/osmo_bsc_rf.h>
+
+#include "../../bscconfig.h"
+
+/* MCC and MNC for the Location Area Identifier */
+struct gsm_network *bsc_gsmnet = 0;
+static struct osmo_bsc_rf *rf_ctrl;
+static const char *database_name = "hlr.sqlite3";
+static const char *config_file = "openbsc.cfg";
+static const char *rf_ctrl_name = NULL;
+extern const char *openbsc_copyright;
+static int daemonize = 0;
+static int use_mncc_sock = 0;
+static int use_db_counter = 1;
+
+/* timer to store statistics */
+#define DB_SYNC_INTERVAL 60, 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: bsc_hack\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(" -p --pcap file The filename of the pcap file\n");
+ printf(" -T --timestamp Prefix every log line with a timestamp\n");
+ printf(" -V --version. Print the version of 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");
+ printf(" -r --rf-ctl NAME. 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'},
+ {"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:",
+ 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 = strdup(optarg);
+ break;
+ case 'c':
+ config_file = strdup(optarg);
+ break;
+ case 'p':
+ create_pcap_file(optarg);
+ break;
+ case 'T':
+ log_set_print_timestamp(osmo_stderr_target, 1);
+ break;
+ case 'e':
+ log_set_log_level(osmo_stderr_target, atoi(optarg));
+ break;
+ case 'm':
+ use_mncc_sock = 1;
+ break;
+ case 'C':
+ use_db_counter = 0;
+ break;
+ case 'V':
+ print_version(1);
+ exit(0);
+ break;
+ case 'r':
+ rf_ctrl_name = optarg;
+ break;
+ default:
+ /* ignore */
+ 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:
+ /* 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);
+}
+
+void talloc_ctx_init(void);
+
+extern enum node_type bsc_vty_go_parent(struct vty *vty);
+
+static struct vty_app_info vty_info = {
+ .name = "OsmoMSC",
+ .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();
+ on_dso_load_token();
+ on_dso_load_rrlp();
+
+ osmo_init_logging(&log_info);
+
+ /* This needs to precede handle_options() */
+ vty_init(&vty_info);
+
+ /* parse options */
+ handle_options(argc, argv);
+
+ /* internal MNCC handler or MNCC socket? */
+ if (use_mncc_sock) {
+ //rc = bsc_bootstrap_network(mncc_sock_from_cc, config_file);
+ //if (rc >= 0)
+ mncc_sock_init(bsc_gsmnet);
+ } else
+ //rc = bsc_bootstrap_network(int_mncc_recv, config_file);
+ if (rc < 0)
+ exit(1);
+ bsc_api_init(bsc_gsmnet, msc_bsc_api());
+
+ controlif_setup(bsc_gsmnet, 4250);
+ /* seed the PRNG */
+ srand(time(NULL));
+
+ 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);
+
+ 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);
+ }
+}
diff --git a/openbsc/src/osmo-mss/stubs.c b/openbsc/src/osmo-mss/stubs.c
new file mode 100644
index 000000000..42d5094f1
--- /dev/null
+++ b/openbsc/src/osmo-mss/stubs.c
@@ -0,0 +1,104 @@
+#include <errno.h>
+
+#include <openbsc/debug.h>
+#include <openbsc/gsm_subscriber.h>
+
+struct gsm_subscriber_connection *connection_for_subscr(struct gsm_subscriber *subscr)
+{
+ struct gsm_bts *bts;
+ struct gsm_network *net = subscr->net;
+ struct gsm_lchan *lchan;
+
+ /* FIXME: iterate over all existing GAN associations and see if we have
+ * any for subscr */
+
+ return NULL;
+}
+
+/*! \brief process incoming 08.08 DTAP from MSC (send via GANC
+ * association to MS) */
+int gsm0808_submit_dtap(struct gsm_subscriber_connection *conn,
+ struct msgb *msg, int link_id, int allow_sacch)
+{
+ /* FIXME */
+
+ return -EINVAL;
+}
+
+/* Release all occupied RF Channels but stay around for more. */
+int gsm0808_clear(struct gsm_subscriber_connection *conn)
+{
+ /* FIXME */
+ conn->lchan = NULL;
+ conn->secondary_lchan = NULL;
+ conn->ho_lchan = NULL;
+ conn->bts = NULL;
+
+ osmo_timer_del(&conn->T10);
+
+ return 0;
+}
+/*! \brief We received a GSM 08.08 CIPHER MODE from the MSC */
+int gsm0808_cipher_mode(struct gsm_subscriber_connection *conn, int cipher,
+ const uint8_t *key, int len, int include_imeisv)
+{
+ if (cipher > 0 && key == NULL) {
+ LOGP(DRSL, LOGL_ERROR, "Need to have an encrytpion key.\n");
+ return -1;
+ }
+
+ if (len > MAX_A5_KEY_LEN) {
+ LOGP(DRSL, LOGL_ERROR, "The key is too long: %d\n", len);
+ return -1;
+ }
+}
+
+/* MSC has requested that we page the given subscriber */
+int paging_request(struct gsm_network *network, struct gsm_subscriber *subscr,
+ int type, gsm_cbfn *cbfn, void *data)
+{
+ /* FIXME */
+ return -EINVAL;
+}
+
+/* Stop paging on all other bts' */
+void paging_request_stop(struct gsm_bts *_bts, struct gsm_subscriber *subscr,
+ struct gsm_subscriber_connection *conn,
+ struct msgb *msg)
+{
+ /* FIXME */
+}
+
+/* cleanup at release subscriber_connection */
+void subscr_con_free(struct gsm_subscriber_connection *conn)
+{
+ /* FIXME: merge with libbsc/bsc_api.c implementation */
+ if (!conn)
+ return;
+
+ if (conn->subscr) {
+ subscr_put(conn->subscr);
+ conn->subscr = NULL;
+ }
+
+ if (conn->lchan) {
+ LOGP(DNM, LOGL_ERROR, "The lchan should have been cleared.\n");
+ conn->lchan->conn = NULL;
+ }
+
+ if (conn->secondary_lchan) {
+ LOGP(DNM, LOGL_ERROR, "The secondary_lchan should have been cleared.\n");
+ conn->secondary_lchan->conn = NULL;
+ }
+
+ llist_del(&conn->entry);
+ talloc_free(conn);
+}
+
+void gsm_net_update_ctype(struct gsm_network *network)
+{
+ /* a MSC doesn't really need this, does it? */
+ return;
+}
+
+