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-rw-r--r--src/libmsc/Makefile.am19
-rw-r--r--src/libmsc/Makefile.in482
-rw-r--r--src/libmsc/auth.c132
-rw-r--r--src/libmsc/db.c1303
-rw-r--r--src/libmsc/gsm_04_08.c3345
-rw-r--r--src/libmsc/gsm_04_11.c1240
-rw-r--r--src/libmsc/gsm_04_80.c175
-rw-r--r--src/libmsc/gsm_subscriber.c410
-rw-r--r--src/libmsc/mncc.c110
-rw-r--r--src/libmsc/mncc_builtin.c411
-rw-r--r--src/libmsc/mncc_sock.c337
-rw-r--r--src/libmsc/osmo_msc.c104
-rw-r--r--src/libmsc/rrlp.c105
-rw-r--r--src/libmsc/silent_call.c143
-rw-r--r--src/libmsc/sms_queue.c479
-rw-r--r--src/libmsc/token_auth.c153
-rw-r--r--src/libmsc/ussd.c79
-rw-r--r--src/libmsc/vty_interface_layer3.c790
18 files changed, 9817 insertions, 0 deletions
diff --git a/src/libmsc/Makefile.am b/src/libmsc/Makefile.am
new file mode 100644
index 00000000..7d895c39
--- /dev/null
+++ b/src/libmsc/Makefile.am
@@ -0,0 +1,19 @@
+INCLUDES = $(all_includes) -I$(top_srcdir)/include -I$(top_builddir)
+AM_CFLAGS=-Wall $(LIBOSMOCORE_CFLAGS) $(LIBOSMOVTY_CFLAGS) $(COVERAGE_CFLAGS)
+AM_LDFLAGS = $(LIBOSMOCORE_LIBS) $(COVERAGE_LDFLAGS)
+
+noinst_LIBRARIES = libmsc.a
+
+libmsc_a_SOURCES = auth.c \
+ db.c \
+ gsm_04_08.c gsm_04_11.c gsm_04_80.c \
+ gsm_subscriber.c \
+ mncc.c mncc_builtin.c mncc_sock.c \
+ rrlp.c \
+ silent_call.c \
+ sms_queue.c \
+ token_auth.c \
+ ussd.c \
+ vty_interface_layer3.c \
+ osmo_msc.c
+
diff --git a/src/libmsc/Makefile.in b/src/libmsc/Makefile.in
new file mode 100644
index 00000000..1ebc0320
--- /dev/null
+++ b/src/libmsc/Makefile.in
@@ -0,0 +1,482 @@
+# Makefile.in generated by automake 1.11.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation,
+# Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+VPATH = @srcdir@
+pkgdatadir = $(datadir)/@PACKAGE@
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+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+subdir = src/libmsc
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+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
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+ gsm_04_11.$(OBJEXT) gsm_04_80.$(OBJEXT) \
+ gsm_subscriber.$(OBJEXT) mncc.$(OBJEXT) mncc_builtin.$(OBJEXT) \
+ mncc_sock.$(OBJEXT) rrlp.$(OBJEXT) silent_call.$(OBJEXT) \
+ sms_queue.$(OBJEXT) token_auth.$(OBJEXT) ussd.$(OBJEXT) \
+ vty_interface_layer3.$(OBJEXT) osmo_msc.$(OBJEXT)
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+ db.c \
+ gsm_04_08.c gsm_04_11.c gsm_04_80.c \
+ gsm_subscriber.c \
+ mncc.c mncc_builtin.c mncc_sock.c \
+ rrlp.c \
+ silent_call.c \
+ sms_queue.c \
+ token_auth.c \
+ ussd.c \
+ vty_interface_layer3.c \
+ osmo_msc.c
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+ install-ps install-ps-am install-strip installcheck \
+ installcheck-am installdirs maintainer-clean \
+ maintainer-clean-generic mostlyclean mostlyclean-compile \
+ mostlyclean-generic pdf pdf-am ps ps-am tags uninstall \
+ uninstall-am
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/src/libmsc/auth.c b/src/libmsc/auth.c
new file mode 100644
index 00000000..e09bde5f
--- /dev/null
+++ b/src/libmsc/auth.c
@@ -0,0 +1,132 @@
+/* Authentication related functions */
+
+/*
+ * (C) 2010 by Sylvain Munaut <tnt@246tNt.com>
+ *
+ * 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 <openbsc/db.h>
+#include <openbsc/debug.h>
+#include <openbsc/auth.h>
+#include <openbsc/gsm_data.h>
+
+#include <osmocore/comp128.h>
+
+#include <stdlib.h>
+
+
+static int
+_use_xor(struct gsm_auth_info *ainfo, struct gsm_auth_tuple *atuple)
+{
+ int i, l = ainfo->a3a8_ki_len;
+
+ if ((l > A38_XOR_MAX_KEY_LEN) || (l < A38_XOR_MIN_KEY_LEN)) {
+ LOGP(DMM, LOGL_ERROR, "Invalid XOR key (len=%d) %s\n",
+ ainfo->a3a8_ki_len,
+ hexdump(ainfo->a3a8_ki, ainfo->a3a8_ki_len));
+ return -1;
+ }
+
+ for (i=0; i<4; i++)
+ atuple->sres[i] = atuple->rand[i] ^ ainfo->a3a8_ki[i];
+ for (i=4; i<12; i++)
+ atuple->kc[i-4] = atuple->rand[i] ^ ainfo->a3a8_ki[i];
+
+ return 0;
+}
+
+static int
+_use_comp128_v1(struct gsm_auth_info *ainfo, struct gsm_auth_tuple *atuple)
+{
+ if (ainfo->a3a8_ki_len != A38_COMP128_KEY_LEN) {
+ LOGP(DMM, LOGL_ERROR, "Invalid COMP128v1 key (len=%d) %s\n",
+ ainfo->a3a8_ki_len,
+ hexdump(ainfo->a3a8_ki, ainfo->a3a8_ki_len));
+ return -1;
+ }
+
+ comp128(ainfo->a3a8_ki, atuple->rand, atuple->sres, atuple->kc);
+
+ return 0;
+}
+
+/* Return values
+ * -1 -> Internal error
+ * 0 -> Not available
+ * 1 -> Tuple returned, need to do auth, then enable cipher
+ * 2 -> Tuple returned, need to enable cipher
+ */
+int auth_get_tuple_for_subscr(struct gsm_auth_tuple *atuple,
+ struct gsm_subscriber *subscr, int key_seq)
+{
+ struct gsm_auth_info ainfo;
+ int i, rc;
+
+ /* Get subscriber info (if any) */
+ rc = db_get_authinfo_for_subscr(&ainfo, subscr);
+ if (rc < 0) {
+ LOGP(DMM, LOGL_NOTICE,
+ "No retrievable Ki for subscriber, skipping auth\n");
+ return rc == -ENOENT ? AUTH_NOT_AVAIL : -1;
+ }
+
+ /* If possible, re-use the last tuple and skip auth */
+ rc = db_get_lastauthtuple_for_subscr(atuple, subscr);
+ if ((rc == 0) &&
+ (key_seq != GSM_KEY_SEQ_INVAL) &&
+ (atuple->use_count < 3))
+ {
+ atuple->use_count++;
+ db_sync_lastauthtuple_for_subscr(atuple, subscr);
+ DEBUGP(DMM, "Auth tuple use < 3, just doing ciphering\n");
+ return AUTH_DO_CIPH;
+ }
+
+ /* Generate a new one */
+ atuple->use_count = 1;
+ atuple->key_seq = (atuple->key_seq + 1) % 7;
+ for (i=0; i<sizeof(atuple->rand); i++)
+ atuple->rand[i] = random() & 0xff;
+
+ switch (ainfo.auth_algo) {
+ case AUTH_ALGO_NONE:
+ DEBUGP(DMM, "No authentication for subscriber\n");
+ return 0;
+
+ case AUTH_ALGO_XOR:
+ if (_use_xor(&ainfo, atuple))
+ return 0;
+ break;
+
+ case AUTH_ALGO_COMP128v1:
+ if (_use_comp128_v1(&ainfo, atuple))
+ return 0;
+ break;
+
+ default:
+ DEBUGP(DMM, "Unsupported auth type algo_id=%d\n",
+ ainfo.auth_algo);
+ return 0;
+ }
+
+ db_sync_lastauthtuple_for_subscr(atuple, subscr);
+
+ DEBUGP(DMM, "Need to do authentication and ciphering\n");
+ return AUTH_DO_AUTH_THAN_CIPH;
+}
+
diff --git a/src/libmsc/db.c b/src/libmsc/db.c
new file mode 100644
index 00000000..95a7d36f
--- /dev/null
+++ b/src/libmsc/db.c
@@ -0,0 +1,1303 @@
+/* Simple HLR/VLR database backend using dbi */
+/* (C) 2008 by Jan Luebbe <jluebbe@debian.org>
+ * (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
+ * (C) 2009 by Harald Welte <laforge@gnumonks.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 <stdint.h>
+#include <inttypes.h>
+#include <libgen.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <dbi/dbi.h>
+
+#include <openbsc/gsm_data.h>
+#include <openbsc/gsm_subscriber.h>
+#include <openbsc/gsm_04_11.h>
+#include <openbsc/db.h>
+#include <openbsc/debug.h>
+
+#include <osmocore/talloc.h>
+#include <osmocore/statistics.h>
+#include <osmocore/rate_ctr.h>
+
+static char *db_basename = NULL;
+static char *db_dirname = NULL;
+static dbi_conn conn;
+
+static char *create_stmts[] = {
+ "CREATE TABLE IF NOT EXISTS Meta ("
+ "id INTEGER PRIMARY KEY AUTOINCREMENT, "
+ "key TEXT UNIQUE NOT NULL, "
+ "value TEXT NOT NULL"
+ ")",
+ "INSERT OR IGNORE INTO Meta "
+ "(key, value) "
+ "VALUES "
+ "('revision', '2')",
+ "CREATE TABLE IF NOT EXISTS Subscriber ("
+ "id INTEGER PRIMARY KEY AUTOINCREMENT, "
+ "created TIMESTAMP NOT NULL, "
+ "updated TIMESTAMP NOT NULL, "
+ "imsi NUMERIC UNIQUE NOT NULL, "
+ "name TEXT, "
+ "extension TEXT UNIQUE, "
+ "authorized INTEGER NOT NULL DEFAULT 0, "
+ "tmsi TEXT UNIQUE, "
+ "lac INTEGER NOT NULL DEFAULT 0"
+ ")",
+ "CREATE TABLE IF NOT EXISTS AuthToken ("
+ "id INTEGER PRIMARY KEY AUTOINCREMENT, "
+ "subscriber_id INTEGER UNIQUE NOT NULL, "
+ "created TIMESTAMP NOT NULL, "
+ "token TEXT UNIQUE NOT NULL"
+ ")",
+ "CREATE TABLE IF NOT EXISTS Equipment ("
+ "id INTEGER PRIMARY KEY AUTOINCREMENT, "
+ "created TIMESTAMP NOT NULL, "
+ "updated TIMESTAMP NOT NULL, "
+ "name TEXT, "
+ "classmark1 NUMERIC, "
+ "classmark2 BLOB, "
+ "classmark3 BLOB, "
+ "imei NUMERIC UNIQUE NOT NULL"
+ ")",
+ "CREATE TABLE IF NOT EXISTS EquipmentWatch ("
+ "id INTEGER PRIMARY KEY AUTOINCREMENT, "
+ "created TIMESTAMP NOT NULL, "
+ "updated TIMESTAMP NOT NULL, "
+ "subscriber_id NUMERIC NOT NULL, "
+ "equipment_id NUMERIC NOT NULL, "
+ "UNIQUE (subscriber_id, equipment_id) "
+ ")",
+ "CREATE TABLE IF NOT EXISTS SMS ("
+ /* metadata, not part of sms */
+ "id INTEGER PRIMARY KEY AUTOINCREMENT, "
+ "created TIMESTAMP NOT NULL, "
+ "sent TIMESTAMP, "
+ "sender_id INTEGER NOT NULL, "
+ "receiver_id INTEGER NOT NULL, "
+ "deliver_attempts INTEGER NOT NULL DEFAULT 0, "
+ /* data directly copied/derived from SMS */
+ "valid_until TIMESTAMP, "
+ "reply_path_req INTEGER NOT NULL, "
+ "status_rep_req INTEGER NOT NULL, "
+ "protocol_id INTEGER NOT NULL, "
+ "data_coding_scheme INTEGER NOT NULL, "
+ "ud_hdr_ind INTEGER NOT NULL, "
+ "dest_addr TEXT, "
+ "user_data BLOB, " /* TP-UD */
+ /* additional data, interpreted from SMS */
+ "header BLOB, " /* UD Header */
+ "text TEXT " /* decoded UD after UDH */
+ ")",
+ "CREATE TABLE IF NOT EXISTS VLR ("
+ "id INTEGER PRIMARY KEY AUTOINCREMENT, "
+ "created TIMESTAMP NOT NULL, "
+ "updated TIMESTAMP NOT NULL, "
+ "subscriber_id NUMERIC UNIQUE NOT NULL, "
+ "last_bts NUMERIC NOT NULL "
+ ")",
+ "CREATE TABLE IF NOT EXISTS ApduBlobs ("
+ "id INTEGER PRIMARY KEY AUTOINCREMENT, "
+ "created TIMESTAMP NOT NULL, "
+ "apdu_id_flags INTEGER NOT NULL, "
+ "subscriber_id INTEGER NOT NULL, "
+ "apdu BLOB "
+ ")",
+ "CREATE TABLE IF NOT EXISTS Counters ("
+ "id INTEGER PRIMARY KEY AUTOINCREMENT, "
+ "timestamp TIMESTAMP NOT NULL, "
+ "value INTEGER NOT NULL, "
+ "name TEXT NOT NULL "
+ ")",
+ "CREATE TABLE IF NOT EXISTS RateCounters ("
+ "id INTEGER PRIMARY KEY AUTOINCREMENT, "
+ "timestamp TIMESTAMP NOT NULL, "
+ "value INTEGER NOT NULL, "
+ "name TEXT NOT NULL, "
+ "idx INTEGER NOT NULL "
+ ")",
+ "CREATE TABLE IF NOT EXISTS AuthKeys ("
+ "subscriber_id INTEGER PRIMARY KEY, "
+ "algorithm_id INTEGER NOT NULL, "
+ "a3a8_ki BLOB "
+ ")",
+ "CREATE TABLE IF NOT EXISTS AuthLastTuples ("
+ "subscriber_id INTEGER PRIMARY KEY, "
+ "issued TIMESTAMP NOT NULL, "
+ "use_count INTEGER NOT NULL DEFAULT 0, "
+ "key_seq INTEGER NOT NULL, "
+ "rand BLOB NOT NULL, "
+ "sres BLOB NOT NULL, "
+ "kc BLOB NOT NULL "
+ ")",
+};
+
+void db_error_func(dbi_conn conn, void *data)
+{
+ const char *msg;
+ dbi_conn_error(conn, &msg);
+ LOGP(DDB, LOGL_ERROR, "DBI: %s\n", msg);
+}
+
+static int check_db_revision(void)
+{
+ dbi_result result;
+ const char *rev;
+
+ result = dbi_conn_query(conn,
+ "SELECT value FROM Meta WHERE key='revision'");
+ if (!result)
+ return -EINVAL;
+
+ if (!dbi_result_next_row(result)) {
+ dbi_result_free(result);
+ return -EINVAL;
+ }
+ rev = dbi_result_get_string(result, "value");
+ if (!rev || atoi(rev) != 2) {
+ dbi_result_free(result);
+ return -EINVAL;
+ }
+
+ dbi_result_free(result);
+ return 0;
+}
+
+int db_init(const char *name)
+{
+ dbi_initialize(NULL);
+
+ conn = dbi_conn_new("sqlite3");
+ if (conn == NULL) {
+ LOGP(DDB, LOGL_FATAL, "Failed to create connection.\n");
+ return 1;
+ }
+
+ dbi_conn_error_handler( conn, db_error_func, NULL );
+
+ /* MySQL
+ dbi_conn_set_option(conn, "host", "localhost");
+ dbi_conn_set_option(conn, "username", "your_name");
+ dbi_conn_set_option(conn, "password", "your_password");
+ dbi_conn_set_option(conn, "dbname", "your_dbname");
+ dbi_conn_set_option(conn, "encoding", "UTF-8");
+ */
+
+ /* SqLite 3 */
+ db_basename = strdup(name);
+ db_dirname = strdup(name);
+ dbi_conn_set_option(conn, "sqlite3_dbdir", dirname(db_dirname));
+ dbi_conn_set_option(conn, "dbname", basename(db_basename));
+
+ if (dbi_conn_connect(conn) < 0)
+ goto out_err;
+
+ return 0;
+
+out_err:
+ free(db_dirname);
+ free(db_basename);
+ db_dirname = db_basename = NULL;
+ return -1;
+}
+
+
+int db_prepare()
+{
+ dbi_result result;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(create_stmts); i++) {
+ result = dbi_conn_query(conn, create_stmts[i]);
+ if (!result) {
+ LOGP(DDB, LOGL_ERROR,
+ "Failed to create some table.\n");
+ return 1;
+ }
+ dbi_result_free(result);
+ }
+
+ if (check_db_revision() < 0) {
+ LOGP(DDB, LOGL_FATAL, "Database schema revision invalid, "
+ "please update your database schema\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+int db_fini()
+{
+ dbi_conn_close(conn);
+ dbi_shutdown();
+
+ if (db_dirname)
+ free(db_dirname);
+ if (db_basename)
+ free(db_basename);
+ return 0;
+}
+
+struct gsm_subscriber *db_create_subscriber(struct gsm_network *net, char *imsi)
+{
+ dbi_result result;
+ struct gsm_subscriber *subscr;
+
+ /* Is this subscriber known in the db? */
+ subscr = db_get_subscriber(net, GSM_SUBSCRIBER_IMSI, imsi);
+ if (subscr) {
+ result = dbi_conn_queryf(conn,
+ "UPDATE Subscriber set updated = datetime('now') "
+ "WHERE imsi = %s " , imsi);
+ if (!result)
+ LOGP(DDB, LOGL_ERROR, "failed to update timestamp\n");
+ else
+ dbi_result_free(result);
+ return subscr;
+ }
+
+ subscr = subscr_alloc();
+ subscr->flags |= GSM_SUBSCRIBER_FIRST_CONTACT;
+ if (!subscr)
+ return NULL;
+ result = dbi_conn_queryf(conn,
+ "INSERT INTO Subscriber "
+ "(imsi, created, updated) "
+ "VALUES "
+ "(%s, datetime('now'), datetime('now')) ",
+ imsi
+ );
+ if (!result)
+ LOGP(DDB, LOGL_ERROR, "Failed to create Subscriber by IMSI.\n");
+ subscr->net = net;
+ subscr->id = dbi_conn_sequence_last(conn, NULL);
+ strncpy(subscr->imsi, imsi, GSM_IMSI_LENGTH-1);
+ dbi_result_free(result);
+ LOGP(DDB, LOGL_INFO, "New Subscriber: ID %llu, IMSI %s\n", subscr->id, subscr->imsi);
+ db_subscriber_alloc_exten(subscr);
+ return subscr;
+}
+
+static_assert(sizeof(unsigned char) == sizeof(struct gsm48_classmark1), classmark1_size);
+
+static int get_equipment_by_subscr(struct gsm_subscriber *subscr)
+{
+ dbi_result result;
+ const char *string;
+ unsigned char cm1;
+ const unsigned char *cm2, *cm3;
+ struct gsm_equipment *equip = &subscr->equipment;
+
+ result = dbi_conn_queryf(conn,
+ "SELECT Equipment.* "
+ "FROM Equipment JOIN EquipmentWatch ON "
+ "EquipmentWatch.equipment_id=Equipment.id "
+ "WHERE EquipmentWatch.subscriber_id = %llu "
+ "ORDER BY EquipmentWatch.updated DESC", subscr->id);
+ if (!result)
+ return -EIO;
+
+ if (!dbi_result_next_row(result)) {
+ dbi_result_free(result);
+ return -ENOENT;
+ }
+
+ equip->id = dbi_result_get_ulonglong(result, "id");
+
+ string = dbi_result_get_string(result, "imei");
+ if (string)
+ strncpy(equip->imei, string, sizeof(equip->imei));
+
+ string = dbi_result_get_string(result, "classmark1");
+ if (string) {
+ cm1 = atoi(string) & 0xff;
+ memcpy(&equip->classmark1, &cm1, sizeof(equip->classmark1));
+ }
+
+ equip->classmark2_len = dbi_result_get_field_length(result, "classmark2");
+ cm2 = dbi_result_get_binary(result, "classmark2");
+ if (equip->classmark2_len > sizeof(equip->classmark2))
+ equip->classmark2_len = sizeof(equip->classmark2);
+ memcpy(equip->classmark2, cm2, equip->classmark2_len);
+
+ equip->classmark3_len = dbi_result_get_field_length(result, "classmark3");
+ cm3 = dbi_result_get_binary(result, "classmark3");
+ if (equip->classmark3_len > sizeof(equip->classmark3))
+ equip->classmark3_len = sizeof(equip->classmark3);
+ memcpy(equip->classmark3, cm3, equip->classmark3_len);
+
+ dbi_result_free(result);
+
+ return 0;
+}
+
+int db_get_authinfo_for_subscr(struct gsm_auth_info *ainfo,
+ struct gsm_subscriber *subscr)
+{
+ dbi_result result;
+ const unsigned char *a3a8_ki;
+
+ result = dbi_conn_queryf(conn,
+ "SELECT * FROM AuthKeys WHERE subscriber_id=%llu",
+ subscr->id);
+ if (!result)
+ return -EIO;
+
+ if (!dbi_result_next_row(result)) {
+ dbi_result_free(result);
+ return -ENOENT;
+ }
+
+ ainfo->auth_algo = dbi_result_get_ulonglong(result, "algorithm_id");
+ ainfo->a3a8_ki_len = dbi_result_get_field_length(result, "a3a8_ki");
+ a3a8_ki = dbi_result_get_binary(result, "a3a8_ki");
+ if (ainfo->a3a8_ki_len > sizeof(ainfo->a3a8_ki))
+ ainfo->a3a8_ki_len = sizeof(ainfo->a3a8_ki_len);
+ memcpy(ainfo->a3a8_ki, a3a8_ki, ainfo->a3a8_ki_len);
+
+ dbi_result_free(result);
+
+ return 0;
+}
+
+int db_sync_authinfo_for_subscr(struct gsm_auth_info *ainfo,
+ struct gsm_subscriber *subscr)
+{
+ dbi_result result;
+ struct gsm_auth_info ainfo_old;
+ int rc, upd;
+ unsigned char *ki_str;
+
+ /* Deletion ? */
+ if (ainfo == NULL) {
+ result = dbi_conn_queryf(conn,
+ "DELETE FROM AuthKeys WHERE subscriber_id=%llu",
+ subscr->id);
+
+ if (!result)
+ return -EIO;
+
+ dbi_result_free(result);
+
+ return 0;
+ }
+
+ /* Check if already existing */
+ rc = db_get_authinfo_for_subscr(&ainfo_old, subscr);
+ if (rc && rc != -ENOENT)
+ return rc;
+ upd = rc ? 0 : 1;
+
+ /* Update / Insert */
+ dbi_conn_quote_binary_copy(conn,
+ ainfo->a3a8_ki, ainfo->a3a8_ki_len, &ki_str);
+
+ if (!upd) {
+ result = dbi_conn_queryf(conn,
+ "INSERT INTO AuthKeys "
+ "(subscriber_id, algorithm_id, a3a8_ki) "
+ "VALUES (%llu, %u, %s)",
+ subscr->id, ainfo->auth_algo, ki_str);
+ } else {
+ result = dbi_conn_queryf(conn,
+ "UPDATE AuthKeys "
+ "SET algorithm_id=%u, a3a8_ki=%s "
+ "WHERE subscriber_id=%llu",
+ ainfo->auth_algo, ki_str, subscr->id);
+ }
+
+ free(ki_str);
+
+ if (!result)
+ return -EIO;
+
+ dbi_result_free(result);
+
+ return 0;
+}
+
+int db_get_lastauthtuple_for_subscr(struct gsm_auth_tuple *atuple,
+ struct gsm_subscriber *subscr)
+{
+ dbi_result result;
+ int len;
+ const unsigned char *blob;
+
+ result = dbi_conn_queryf(conn,
+ "SELECT * FROM AuthLastTuples WHERE subscriber_id=%llu",
+ subscr->id);
+ if (!result)
+ return -EIO;
+
+ if (!dbi_result_next_row(result)) {
+ dbi_result_free(result);
+ return -ENOENT;
+ }
+
+ memset(atuple, 0, sizeof(atuple));
+
+ atuple->use_count = dbi_result_get_ulonglong(result, "use_count");
+ atuple->key_seq = dbi_result_get_ulonglong(result, "key_seq");
+
+ len = dbi_result_get_field_length(result, "rand");
+ if (len != sizeof(atuple->rand))
+ goto err_size;
+
+ blob = dbi_result_get_binary(result, "rand");
+ memcpy(atuple->rand, blob, len);
+
+ len = dbi_result_get_field_length(result, "sres");
+ if (len != sizeof(atuple->sres))
+ goto err_size;
+
+ blob = dbi_result_get_binary(result, "sres");
+ memcpy(atuple->sres, blob, len);
+
+ len = dbi_result_get_field_length(result, "kc");
+ if (len != sizeof(atuple->kc))
+ goto err_size;
+
+ blob = dbi_result_get_binary(result, "kc");
+ memcpy(atuple->kc, blob, len);
+
+ dbi_result_free(result);
+
+ return 0;
+
+err_size:
+ dbi_result_free(result);
+ return -EIO;
+}
+
+int db_sync_lastauthtuple_for_subscr(struct gsm_auth_tuple *atuple,
+ struct gsm_subscriber *subscr)
+{
+ dbi_result result;
+ int rc, upd;
+ struct gsm_auth_tuple atuple_old;
+ unsigned char *rand_str, *sres_str, *kc_str;
+
+ /* Deletion ? */
+ if (atuple == NULL) {
+ result = dbi_conn_queryf(conn,
+ "DELETE FROM AuthLastTuples WHERE subscriber_id=%llu",
+ subscr->id);
+
+ if (!result)
+ return -EIO;
+
+ dbi_result_free(result);
+
+ return 0;
+ }
+
+ /* Check if already existing */
+ rc = db_get_lastauthtuple_for_subscr(&atuple_old, subscr);
+ if (rc && rc != -ENOENT)
+ return rc;
+ upd = rc ? 0 : 1;
+
+ /* Update / Insert */
+ dbi_conn_quote_binary_copy(conn,
+ atuple->rand, sizeof(atuple->rand), &rand_str);
+ dbi_conn_quote_binary_copy(conn,
+ atuple->sres, sizeof(atuple->sres), &sres_str);
+ dbi_conn_quote_binary_copy(conn,
+ atuple->kc, sizeof(atuple->kc), &kc_str);
+
+ if (!upd) {
+ result = dbi_conn_queryf(conn,
+ "INSERT INTO AuthLastTuples "
+ "(subscriber_id, issued, use_count, "
+ "key_seq, rand, sres, kc) "
+ "VALUES (%llu, datetime('now'), %u, "
+ "%u, %s, %s, %s ) ",
+ subscr->id, atuple->use_count, atuple->key_seq,
+ rand_str, sres_str, kc_str);
+ } else {
+ char *issued = atuple->key_seq == atuple_old.key_seq ?
+ "issued" : "datetime('now')";
+ result = dbi_conn_queryf(conn,
+ "UPDATE AuthLastTuples "
+ "SET issued=%s, use_count=%u, "
+ "key_seq=%u, rand=%s, sres=%s, kc=%s "
+ "WHERE subscriber_id = %llu",
+ issued, atuple->use_count, atuple->key_seq,
+ rand_str, sres_str, kc_str, subscr->id);
+ }
+
+ free(rand_str);
+ free(sres_str);
+ free(kc_str);
+
+ if (!result)
+ return -EIO;
+
+ dbi_result_free(result);
+
+ return 0;
+}
+
+static void db_set_from_query(struct gsm_subscriber *subscr, dbi_conn result)
+{
+ const char *string;
+ string = dbi_result_get_string(result, "imsi");
+ if (string)
+ strncpy(subscr->imsi, string, GSM_IMSI_LENGTH);
+
+ string = dbi_result_get_string(result, "tmsi");
+ if (string)
+ subscr->tmsi = tmsi_from_string(string);
+
+ string = dbi_result_get_string(result, "name");
+ if (string)
+ strncpy(subscr->name, string, GSM_NAME_LENGTH);
+
+ string = dbi_result_get_string(result, "extension");
+ if (string)
+ strncpy(subscr->extension, string, GSM_EXTENSION_LENGTH);
+
+ subscr->lac = dbi_result_get_uint(result, "lac");
+ subscr->authorized = dbi_result_get_uint(result, "authorized");
+}
+
+#define BASE_QUERY "SELECT * FROM Subscriber "
+struct gsm_subscriber *db_get_subscriber(struct gsm_network *net,
+ enum gsm_subscriber_field field,
+ const char *id)
+{
+ dbi_result result;
+ char *quoted;
+ struct gsm_subscriber *subscr;
+
+ switch (field) {
+ case GSM_SUBSCRIBER_IMSI:
+ dbi_conn_quote_string_copy(conn, id, &quoted);
+ result = dbi_conn_queryf(conn,
+ BASE_QUERY
+ "WHERE imsi = %s ",
+ quoted
+ );
+ free(quoted);
+ break;
+ case GSM_SUBSCRIBER_TMSI:
+ dbi_conn_quote_string_copy(conn, id, &quoted);
+ result = dbi_conn_queryf(conn,
+ BASE_QUERY
+ "WHERE tmsi = %s ",
+ quoted
+ );
+ free(quoted);
+ break;
+ case GSM_SUBSCRIBER_EXTENSION:
+ dbi_conn_quote_string_copy(conn, id, &quoted);
+ result = dbi_conn_queryf(conn,
+ BASE_QUERY
+ "WHERE extension = %s ",
+ quoted
+ );
+ free(quoted);
+ break;
+ case GSM_SUBSCRIBER_ID:
+ dbi_conn_quote_string_copy(conn, id, &quoted);
+ result = dbi_conn_queryf(conn,
+ BASE_QUERY
+ "WHERE id = %s ", quoted);
+ free(quoted);
+ break;
+ default:
+ LOGP(DDB, LOGL_NOTICE, "Unknown query selector for Subscriber.\n");
+ return NULL;
+ }
+ if (!result) {
+ LOGP(DDB, LOGL_ERROR, "Failed to query Subscriber.\n");
+ return NULL;
+ }
+ if (!dbi_result_next_row(result)) {
+ DEBUGP(DDB, "Failed to find the Subscriber. '%u' '%s'\n",
+ field, id);
+ dbi_result_free(result);
+ return NULL;
+ }
+
+ subscr = subscr_alloc();
+ subscr->net = net;
+ subscr->id = dbi_result_get_ulonglong(result, "id");
+
+ db_set_from_query(subscr, result);
+ DEBUGP(DDB, "Found Subscriber: ID %llu, IMSI %s, NAME '%s', TMSI %u, EXTEN '%s', LAC %hu, AUTH %u\n",
+ subscr->id, subscr->imsi, subscr->name, subscr->tmsi, subscr->extension,
+ subscr->lac, subscr->authorized);
+ dbi_result_free(result);
+
+ get_equipment_by_subscr(subscr);
+
+ return subscr;
+}
+
+int db_subscriber_update(struct gsm_subscriber *subscr)
+{
+ char buf[32];
+ dbi_result result;
+
+ /* Copy the id to a string as queryf with %llu is failing */
+ sprintf(buf, "%llu", subscr->id);
+ result = dbi_conn_queryf(conn,
+ BASE_QUERY
+ "WHERE id = %s", buf);
+
+ if (!result) {
+ LOGP(DDB, LOGL_ERROR, "Failed to query Subscriber: %llu\n", subscr->id);
+ return -EIO;
+ }
+ if (!dbi_result_next_row(result)) {
+ DEBUGP(DDB, "Failed to find the Subscriber. %llu\n",
+ subscr->id);
+ dbi_result_free(result);
+ return -EIO;
+ }
+
+ db_set_from_query(subscr, result);
+ dbi_result_free(result);
+ get_equipment_by_subscr(subscr);
+
+ return 0;
+}
+
+int db_sync_subscriber(struct gsm_subscriber *subscriber)
+{
+ dbi_result result;
+ char tmsi[14];
+ char *q_tmsi, *q_name, *q_extension;
+
+ dbi_conn_quote_string_copy(conn,
+ subscriber->name, &q_name);
+ dbi_conn_quote_string_copy(conn,
+ subscriber->extension, &q_extension);
+
+ if (subscriber->tmsi != GSM_RESERVED_TMSI) {
+ sprintf(tmsi, "%u", subscriber->tmsi);
+ dbi_conn_quote_string_copy(conn,
+ tmsi,
+ &q_tmsi);
+ } else
+ q_tmsi = strdup("NULL");
+
+ result = dbi_conn_queryf(conn,
+ "UPDATE Subscriber "
+ "SET updated = datetime('now'), "
+ "name = %s, "
+ "extension = %s, "
+ "authorized = %i, "
+ "tmsi = %s, "
+ "lac = %i "
+ "WHERE imsi = %s ",
+ q_name,
+ q_extension,
+ subscriber->authorized,
+ q_tmsi,
+ subscriber->lac,
+ subscriber->imsi);
+
+ free(q_tmsi);
+ free(q_name);
+ free(q_extension);
+
+ if (!result) {
+ LOGP(DDB, LOGL_ERROR, "Failed to update Subscriber (by IMSI).\n");
+ return 1;
+ }
+
+ dbi_result_free(result);
+
+ return 0;
+}
+
+int db_sync_equipment(struct gsm_equipment *equip)
+{
+ dbi_result result;
+ unsigned char *cm2, *cm3;
+ char *q_imei;
+ u_int8_t classmark1;
+
+ memcpy(&classmark1, &equip->classmark1, sizeof(classmark1));
+ DEBUGP(DDB, "Sync Equipment IMEI=%s, classmark1=%02x",
+ equip->imei, classmark1);
+ if (equip->classmark2_len)
+ DEBUGPC(DDB, ", classmark2=%s",
+ hexdump(equip->classmark2, equip->classmark2_len));
+ if (equip->classmark3_len)
+ DEBUGPC(DDB, ", classmark3=%s",
+ hexdump(equip->classmark3, equip->classmark3_len));
+ DEBUGPC(DDB, "\n");
+
+ dbi_conn_quote_binary_copy(conn, equip->classmark2,
+ equip->classmark2_len, &cm2);
+ dbi_conn_quote_binary_copy(conn, equip->classmark3,
+ equip->classmark3_len, &cm3);
+ dbi_conn_quote_string_copy(conn, equip->imei, &q_imei);
+
+ result = dbi_conn_queryf(conn,
+ "UPDATE Equipment SET "
+ "updated = datetime('now'), "
+ "classmark1 = %u, "
+ "classmark2 = %s, "
+ "classmark3 = %s "
+ "WHERE imei = %s ",
+ classmark1, cm2, cm3, q_imei);
+
+ free(cm2);
+ free(cm3);
+ free(q_imei);
+
+ if (!result) {
+ LOGP(DDB, LOGL_ERROR, "Failed to update Equipment\n");
+ return -EIO;
+ }
+
+ dbi_result_free(result);
+ return 0;
+}
+
+int db_subscriber_alloc_tmsi(struct gsm_subscriber *subscriber)
+{
+ dbi_result result = NULL;
+ char tmsi[14];
+ char *tmsi_quoted;
+
+ for (;;) {
+ subscriber->tmsi = rand();
+ if (subscriber->tmsi == GSM_RESERVED_TMSI)
+ continue;
+
+ sprintf(tmsi, "%u", subscriber->tmsi);
+ dbi_conn_quote_string_copy(conn, tmsi, &tmsi_quoted);
+ result = dbi_conn_queryf(conn,
+ "SELECT * FROM Subscriber "
+ "WHERE tmsi = %s ",
+ tmsi_quoted);
+
+ free(tmsi_quoted);
+
+ if (!result) {
+ LOGP(DDB, LOGL_ERROR, "Failed to query Subscriber "
+ "while allocating new TMSI.\n");
+ return 1;
+ }
+ if (dbi_result_get_numrows(result)) {
+ dbi_result_free(result);
+ continue;
+ }
+ if (!dbi_result_next_row(result)) {
+ dbi_result_free(result);
+ DEBUGP(DDB, "Allocated TMSI %u for IMSI %s.\n",
+ subscriber->tmsi, subscriber->imsi);
+ return db_sync_subscriber(subscriber);
+ }
+ dbi_result_free(result);
+ }
+ return 0;
+}
+
+int db_subscriber_alloc_exten(struct gsm_subscriber *subscriber)
+{
+ dbi_result result = NULL;
+ u_int32_t try;
+
+ for (;;) {
+ try = (rand()%(GSM_MAX_EXTEN-GSM_MIN_EXTEN+1)+GSM_MIN_EXTEN);
+ result = dbi_conn_queryf(conn,
+ "SELECT * FROM Subscriber "
+ "WHERE extension = %i",
+ try
+ );
+ if (!result) {
+ LOGP(DDB, LOGL_ERROR, "Failed to query Subscriber "
+ "while allocating new extension.\n");
+ return 1;
+ }
+ if (dbi_result_get_numrows(result)){
+ dbi_result_free(result);
+ continue;
+ }
+ if (!dbi_result_next_row(result)) {
+ dbi_result_free(result);
+ break;
+ }
+ dbi_result_free(result);
+ }
+ sprintf(subscriber->extension, "%i", try);
+ DEBUGP(DDB, "Allocated extension %i for IMSI %s.\n", try, subscriber->imsi);
+ return db_sync_subscriber(subscriber);
+}
+/*
+ * try to allocate a new unique token for this subscriber and return it
+ * via a parameter. if the subscriber already has a token, return
+ * an error.
+ */
+
+int db_subscriber_alloc_token(struct gsm_subscriber *subscriber, u_int32_t *token)
+{
+ dbi_result result;
+ u_int32_t try;
+
+ for (;;) {
+ try = rand();
+ if (!try) /* 0 is an invalid token */
+ continue;
+ result = dbi_conn_queryf(conn,
+ "SELECT * FROM AuthToken "
+ "WHERE subscriber_id = %llu OR token = \"%08X\" ",
+ subscriber->id, try);
+ if (!result) {
+ LOGP(DDB, LOGL_ERROR, "Failed to query AuthToken "
+ "while allocating new token.\n");
+ return 1;
+ }
+ if (dbi_result_get_numrows(result)) {
+ dbi_result_free(result);
+ continue;
+ }
+ if (!dbi_result_next_row(result)) {
+ dbi_result_free(result);
+ break;
+ }
+ dbi_result_free(result);
+ }
+ result = dbi_conn_queryf(conn,
+ "INSERT INTO AuthToken "
+ "(subscriber_id, created, token) "
+ "VALUES "
+ "(%llu, datetime('now'), \"%08X\") ",
+ subscriber->id, try);
+ if (!result) {
+ LOGP(DDB, LOGL_ERROR, "Failed to create token %08X for "
+ "IMSI %s.\n", try, subscriber->imsi);
+ return 1;
+ }
+ dbi_result_free(result);
+ *token = try;
+ DEBUGP(DDB, "Allocated token %08X for IMSI %s.\n", try, subscriber->imsi);
+
+ return 0;
+}
+
+int db_subscriber_assoc_imei(struct gsm_subscriber *subscriber, char imei[GSM_IMEI_LENGTH])
+{
+ unsigned long long equipment_id, watch_id;
+ dbi_result result;
+
+ strncpy(subscriber->equipment.imei, imei,
+ sizeof(subscriber->equipment.imei)-1),
+
+ result = dbi_conn_queryf(conn,
+ "INSERT OR IGNORE INTO Equipment "
+ "(imei, created, updated) "
+ "VALUES "
+ "(%s, datetime('now'), datetime('now')) ",
+ imei);
+ if (!result) {
+ LOGP(DDB, LOGL_ERROR, "Failed to create Equipment by IMEI.\n");
+ return 1;
+ }
+
+ equipment_id = 0;
+ if (dbi_result_get_numrows_affected(result)) {
+ equipment_id = dbi_conn_sequence_last(conn, NULL);
+ }
+ dbi_result_free(result);
+
+ if (equipment_id)
+ DEBUGP(DDB, "New Equipment: ID %llu, IMEI %s\n", equipment_id, imei);
+ else {
+ result = dbi_conn_queryf(conn,
+ "SELECT id FROM Equipment "
+ "WHERE imei = %s ",
+ imei
+ );
+ if (!result) {
+ LOGP(DDB, LOGL_ERROR, "Failed to query Equipment by IMEI.\n");
+ return 1;
+ }
+ if (!dbi_result_next_row(result)) {
+ LOGP(DDB, LOGL_ERROR, "Failed to find the Equipment.\n");
+ dbi_result_free(result);
+ return 1;
+ }
+ equipment_id = dbi_result_get_ulonglong(result, "id");
+ dbi_result_free(result);
+ }
+
+ result = dbi_conn_queryf(conn,
+ "INSERT OR IGNORE INTO EquipmentWatch "
+ "(subscriber_id, equipment_id, created, updated) "
+ "VALUES "
+ "(%llu, %llu, datetime('now'), datetime('now')) ",
+ subscriber->id, equipment_id);
+ if (!result) {
+ LOGP(DDB, LOGL_ERROR, "Failed to create EquipmentWatch.\n");
+ return 1;
+ }
+
+ watch_id = 0;
+ if (dbi_result_get_numrows_affected(result))
+ watch_id = dbi_conn_sequence_last(conn, NULL);
+
+ dbi_result_free(result);
+ if (watch_id)
+ DEBUGP(DDB, "New EquipmentWatch: ID %llu, IMSI %s, IMEI %s\n",
+ equipment_id, subscriber->imsi, imei);
+ else {
+ result = dbi_conn_queryf(conn,
+ "UPDATE EquipmentWatch "
+ "SET updated = datetime('now') "
+ "WHERE subscriber_id = %llu AND equipment_id = %llu ",
+ subscriber->id, equipment_id);
+ if (!result) {
+ LOGP(DDB, LOGL_ERROR, "Failed to update EquipmentWatch.\n");
+ return 1;
+ }
+ dbi_result_free(result);
+ DEBUGP(DDB, "Updated EquipmentWatch: ID %llu, IMSI %s, IMEI %s\n",
+ equipment_id, subscriber->imsi, imei);
+ }
+
+ return 0;
+}
+
+/* store an [unsent] SMS to the database */
+int db_sms_store(struct gsm_sms *sms)
+{
+ dbi_result result;
+ char *q_text, *q_daddr;
+ unsigned char *q_udata;
+ char *validity_timestamp = "2222-2-2";
+
+ /* FIXME: generate validity timestamp based on validity_minutes */
+
+ dbi_conn_quote_string_copy(conn, (char *)sms->text, &q_text);
+ dbi_conn_quote_string_copy(conn, (char *)sms->dest_addr, &q_daddr);
+ dbi_conn_quote_binary_copy(conn, sms->user_data, sms->user_data_len,
+ &q_udata);
+ /* FIXME: correct validity period */
+ result = dbi_conn_queryf(conn,
+ "INSERT INTO SMS "
+ "(created, sender_id, receiver_id, valid_until, "
+ "reply_path_req, status_rep_req, protocol_id, "
+ "data_coding_scheme, ud_hdr_ind, dest_addr, "
+ "user_data, text) VALUES "
+ "(datetime('now'), %llu, %llu, %u, "
+ "%u, %u, %u, %u, %u, %s, %s, %s)",
+ sms->sender->id,
+ sms->receiver ? sms->receiver->id : 0, validity_timestamp,
+ sms->reply_path_req, sms->status_rep_req, sms->protocol_id,
+ sms->data_coding_scheme, sms->ud_hdr_ind,
+ q_daddr, q_udata, q_text);
+ free(q_text);
+ free(q_daddr);
+ free(q_udata);
+
+ if (!result)
+ return -EIO;
+
+ dbi_result_free(result);
+ return 0;
+}
+
+static struct gsm_sms *sms_from_result(struct gsm_network *net, dbi_result result)
+{
+ struct gsm_sms *sms = sms_alloc();
+ long long unsigned int sender_id, receiver_id;
+ const char *text, *daddr;
+ const unsigned char *user_data;
+
+ if (!sms)
+ return NULL;
+
+ sms->id = dbi_result_get_ulonglong(result, "id");
+
+ sender_id = dbi_result_get_ulonglong(result, "sender_id");
+ sms->sender = subscr_get_by_id(net, sender_id);
+
+ receiver_id = dbi_result_get_ulonglong(result, "receiver_id");
+ sms->receiver = subscr_get_by_id(net, receiver_id);
+
+ /* FIXME: validity */
+ /* FIXME: those should all be get_uchar, but sqlite3 is braindead */
+ sms->reply_path_req = dbi_result_get_uint(result, "reply_path_req");
+ sms->status_rep_req = dbi_result_get_uint(result, "status_rep_req");
+ sms->ud_hdr_ind = dbi_result_get_uint(result, "ud_hdr_ind");
+ sms->protocol_id = dbi_result_get_uint(result, "protocol_id");
+ sms->data_coding_scheme = dbi_result_get_uint(result,
+ "data_coding_scheme");
+ /* sms->msg_ref is temporary and not stored in DB */
+
+ daddr = dbi_result_get_string(result, "dest_addr");
+ if (daddr) {
+ strncpy(sms->dest_addr, daddr, sizeof(sms->dest_addr));
+ sms->dest_addr[sizeof(sms->dest_addr)-1] = '\0';
+ }
+
+ sms->user_data_len = dbi_result_get_field_length(result, "user_data");
+ user_data = dbi_result_get_binary(result, "user_data");
+ if (sms->user_data_len > sizeof(sms->user_data))
+ sms->user_data_len = (u_int8_t) sizeof(sms->user_data);
+ memcpy(sms->user_data, user_data, sms->user_data_len);
+
+ text = dbi_result_get_string(result, "text");
+ if (text) {
+ strncpy(sms->text, text, sizeof(sms->text));
+ sms->text[sizeof(sms->text)-1] = '\0';
+ }
+ return sms;
+}
+
+struct gsm_sms *db_sms_get(struct gsm_network *net, unsigned long long id)
+{
+ dbi_result result;
+ struct gsm_sms *sms;
+
+ result = dbi_conn_queryf(conn,
+ "SELECT * FROM SMS WHERE SMS.id = %llu", id);
+ if (!result)
+ return NULL;
+
+ if (!dbi_result_next_row(result)) {
+ dbi_result_free(result);
+ return NULL;
+ }
+
+ sms = sms_from_result(net, result);
+
+ dbi_result_free(result);
+
+ return sms;
+}
+
+/* retrieve the next unsent SMS with ID >= min_id */
+struct gsm_sms *db_sms_get_unsent(struct gsm_network *net, unsigned long long min_id)
+{
+ dbi_result result;
+ struct gsm_sms *sms;
+
+ result = dbi_conn_queryf(conn,
+ "SELECT SMS.* "
+ "FROM SMS JOIN Subscriber ON "
+ "SMS.receiver_id = Subscriber.id "
+ "WHERE SMS.id >= %llu AND SMS.sent IS NULL "
+ "AND Subscriber.lac > 0 "
+ "ORDER BY SMS.id LIMIT 1",
+ min_id);
+ if (!result)
+ return NULL;
+
+ if (!dbi_result_next_row(result)) {
+ dbi_result_free(result);
+ return NULL;
+ }
+
+ sms = sms_from_result(net, result);
+
+ dbi_result_free(result);
+
+ return sms;
+}
+
+struct gsm_sms *db_sms_get_unsent_by_subscr(struct gsm_network *net,
+ unsigned long long min_subscr_id,
+ unsigned int failed)
+{
+ dbi_result result;
+ struct gsm_sms *sms;
+
+ result = dbi_conn_queryf(conn,
+ "SELECT SMS.* "
+ "FROM SMS JOIN Subscriber ON "
+ "SMS.receiver_id = Subscriber.id "
+ "WHERE SMS.receiver_id >= %llu AND SMS.sent IS NULL "
+ "AND Subscriber.lac > 0 AND SMS.deliver_attempts < %u "
+ "ORDER BY SMS.receiver_id, SMS.id LIMIT 1",
+ min_subscr_id, failed);
+ if (!result)
+ return NULL;
+
+ if (!dbi_result_next_row(result)) {
+ dbi_result_free(result);
+ return NULL;
+ }
+
+ sms = sms_from_result(net, result);
+
+ dbi_result_free(result);
+
+ return sms;
+}
+
+/* retrieve the next unsent SMS for a given subscriber */
+struct gsm_sms *db_sms_get_unsent_for_subscr(struct gsm_subscriber *subscr)
+{
+ dbi_result result;
+ struct gsm_sms *sms;
+
+ result = dbi_conn_queryf(conn,
+ "SELECT SMS.* "
+ "FROM SMS JOIN Subscriber ON "
+ "SMS.receiver_id = Subscriber.id "
+ "WHERE SMS.receiver_id = %llu AND SMS.sent IS NULL "
+ "AND Subscriber.lac > 0 "
+ "ORDER BY SMS.id LIMIT 1",
+ subscr->id);
+ if (!result)
+ return NULL;
+
+ if (!dbi_result_next_row(result)) {
+ dbi_result_free(result);
+ return NULL;
+ }
+
+ sms = sms_from_result(subscr->net, result);
+
+ dbi_result_free(result);
+
+ return sms;
+}
+
+/* mark a given SMS as read */
+int db_sms_mark_sent(struct gsm_sms *sms)
+{
+ dbi_result result;
+
+ result = dbi_conn_queryf(conn,
+ "UPDATE SMS "
+ "SET sent = datetime('now') "
+ "WHERE id = %llu", sms->id);
+ if (!result) {
+ LOGP(DDB, LOGL_ERROR, "Failed to mark SMS %llu as sent.\n", sms->id);
+ return 1;
+ }
+
+ dbi_result_free(result);
+ return 0;
+}
+
+/* increase the number of attempted deliveries */
+int db_sms_inc_deliver_attempts(struct gsm_sms *sms)
+{
+ dbi_result result;
+
+ result = dbi_conn_queryf(conn,
+ "UPDATE SMS "
+ "SET deliver_attempts = deliver_attempts + 1 "
+ "WHERE id = %llu", sms->id);
+ if (!result) {
+ LOGP(DDB, LOGL_ERROR, "Failed to inc deliver attempts for "
+ "SMS %llu.\n", sms->id);
+ return 1;
+ }
+
+ dbi_result_free(result);
+ return 0;
+}
+
+int db_apdu_blob_store(struct gsm_subscriber *subscr,
+ u_int8_t apdu_id_flags, u_int8_t len,
+ u_int8_t *apdu)
+{
+ dbi_result result;
+ unsigned char *q_apdu;
+
+ dbi_conn_quote_binary_copy(conn, apdu, len, &q_apdu);
+
+ result = dbi_conn_queryf(conn,
+ "INSERT INTO ApduBlobs "
+ "(created,subscriber_id,apdu_id_flags,apdu) VALUES "
+ "(datetime('now'),%llu,%u,%s)",
+ subscr->id, apdu_id_flags, q_apdu);
+
+ free(q_apdu);
+
+ if (!result)
+ return -EIO;
+
+ dbi_result_free(result);
+ return 0;
+}
+
+int db_store_counter(struct counter *ctr)
+{
+ dbi_result result;
+ char *q_name;
+
+ dbi_conn_quote_string_copy(conn, ctr->name, &q_name);
+
+ result = dbi_conn_queryf(conn,
+ "INSERT INTO Counters "
+ "(timestamp,name,value) VALUES "
+ "(datetime('now'),%s,%lu)", q_name, ctr->value);
+
+ free(q_name);
+
+ if (!result)
+ return -EIO;
+
+ dbi_result_free(result);
+ return 0;
+}
+
+static int db_store_rate_ctr(struct rate_ctr_group *ctrg, unsigned int num,
+ char *q_prefix)
+{
+ dbi_result result;
+ char *q_name;
+
+ dbi_conn_quote_string_copy(conn, ctrg->desc->ctr_desc[num].name,
+ &q_name);
+
+ result = dbi_conn_queryf(conn,
+ "Insert INTO RateCounters "
+ "(timestamp,name,idx,value) VALUES "
+ "(datetime('now'),%s.%s,%u,%"PRIu64")",
+ q_prefix, q_name, ctrg->idx, ctrg->ctr[num].current);
+
+ free(q_name);
+
+ if (!result)
+ return -EIO;
+
+ dbi_result_free(result);
+ return 0;
+}
+
+int db_store_rate_ctr_group(struct rate_ctr_group *ctrg)
+{
+ unsigned int i;
+ char *q_prefix;
+
+ dbi_conn_quote_string_copy(conn, ctrg->desc->group_name_prefix, &q_prefix);
+
+ for (i = 0; i < ctrg->desc->num_ctr; i++)
+ db_store_rate_ctr(ctrg, i, q_prefix);
+
+ free(q_prefix);
+
+ return 0;
+}
diff --git a/src/libmsc/gsm_04_08.c b/src/libmsc/gsm_04_08.c
new file mode 100644
index 00000000..2b61aa9b
--- /dev/null
+++ b/src/libmsc/gsm_04_08.c
@@ -0,0 +1,3345 @@
+/* GSM Mobile Radio Interface Layer 3 messages on the A-bis interface
+ * 3GPP TS 04.08 version 7.21.0 Release 1998 / ETSI TS 100 940 V7.21.0 */
+
+/* (C) 2008-2009 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2008-2010 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <time.h>
+#include <netinet/in.h>
+
+#include <openbsc/auth.h>
+#include <openbsc/db.h>
+#include <openbsc/debug.h>
+#include <openbsc/gsm_data.h>
+#include <openbsc/gsm_subscriber.h>
+#include <openbsc/gsm_04_11.h>
+#include <openbsc/gsm_04_08.h>
+#include <openbsc/gsm_04_80.h>
+#include <openbsc/abis_rsl.h>
+#include <openbsc/chan_alloc.h>
+#include <openbsc/paging.h>
+#include <openbsc/signal.h>
+#include <openbsc/trau_frame.h>
+#include <openbsc/trau_mux.h>
+#include <openbsc/rtp_proxy.h>
+#include <openbsc/transaction.h>
+#include <openbsc/ussd.h>
+#include <openbsc/silent_call.h>
+#include <openbsc/bsc_api.h>
+#include <openbsc/osmo_msc.h>
+#include <osmocore/bitvec.h>
+
+#include <osmocore/gsm48.h>
+#include <osmocore/gsm0480.h>
+#include <osmocore/gsm_utils.h>
+#include <osmocore/msgb.h>
+#include <osmocore/talloc.h>
+#include <osmocore/tlv.h>
+
+void *tall_locop_ctx;
+void *tall_authciphop_ctx;
+
+int gsm0408_loc_upd_acc(struct gsm_subscriber_connection *conn, u_int32_t tmsi);
+static int gsm48_tx_simple(struct gsm_subscriber_connection *conn,
+ u_int8_t pdisc, u_int8_t msg_type);
+static void schedule_reject(struct gsm_subscriber_connection *conn);
+static void release_anchor(struct gsm_subscriber_connection *conn);
+
+struct gsm_lai {
+ u_int16_t mcc;
+ u_int16_t mnc;
+ u_int16_t lac;
+};
+
+static u_int32_t new_callref = 0x80000001;
+
+void cc_tx_to_mncc(struct gsm_network *net, struct msgb *msg)
+{
+ net->mncc_recv(net, msg);
+}
+
+static int gsm48_conn_sendmsg(struct msgb *msg, struct gsm_subscriber_connection *conn,
+ struct gsm_trans *trans)
+{
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msg->data;
+
+ /* if we get passed a transaction reference, do some common
+ * work that the caller no longer has to do */
+ if (trans) {
+ gh->proto_discr = trans->protocol | (trans->transaction_id << 4);
+ msg->lchan = trans->conn->lchan;
+ }
+
+
+ if (msg->lchan) {
+ msg->trx = msg->lchan->ts->trx;
+ if ((gh->proto_discr & GSM48_PDISC_MASK) == GSM48_PDISC_CC)
+ DEBUGP(DCC, "(bts %d trx %d ts %d ti %02x) "
+ "Sending '%s' to MS.\n", msg->trx->bts->nr,
+ msg->trx->nr, msg->lchan->ts->nr,
+ gh->proto_discr & 0xf0,
+ gsm48_cc_msg_name(gh->msg_type));
+ else
+ DEBUGP(DCC, "(bts %d trx %d ts %d pd %02x) "
+ "Sending 0x%02x to MS.\n", msg->trx->bts->nr,
+ msg->trx->nr, msg->lchan->ts->nr,
+ gh->proto_discr, gh->msg_type);
+ }
+
+ return gsm0808_submit_dtap(conn, msg, 0, 0);
+}
+
+int gsm48_cc_tx_notify_ss(struct gsm_trans *trans, const char *message)
+{
+ struct gsm48_hdr *gh;
+ struct msgb *ss_notify;
+
+ ss_notify = gsm0480_create_notifySS(message);
+ if (!ss_notify)
+ return -1;
+
+ gsm0480_wrap_invoke(ss_notify, GSM0480_OP_CODE_NOTIFY_SS, 0);
+ uint8_t *data = msgb_push(ss_notify, 1);
+ data[0] = ss_notify->len - 1;
+ gh = (struct gsm48_hdr *) msgb_push(ss_notify, sizeof(*gh));
+ gh->msg_type = GSM48_MT_CC_FACILITY;
+ return gsm48_conn_sendmsg(ss_notify, trans->conn, trans);
+}
+
+static void release_security_operation(struct gsm_subscriber_connection *conn)
+{
+ if (!conn->sec_operation)
+ return;
+
+ talloc_free(conn->sec_operation);
+ conn->sec_operation = NULL;
+ msc_release_connection(conn);
+}
+
+static void allocate_security_operation(struct gsm_subscriber_connection *conn)
+{
+ conn->sec_operation = talloc_zero(tall_authciphop_ctx,
+ struct gsm_security_operation);
+}
+
+int gsm48_secure_channel(struct gsm_subscriber_connection *conn, int key_seq,
+ gsm_cbfn *cb, void *cb_data)
+{
+ struct gsm_network *net = conn->bts->network;
+ struct gsm_subscriber *subscr = conn->subscr;
+ struct gsm_security_operation *op;
+ struct gsm_auth_tuple atuple;
+ int status = -1, rc;
+
+ /* Check if we _can_ enable encryption. Cases where we can't:
+ * - Encryption disabled in config
+ * - Channel already secured (nothing to do)
+ * - Subscriber equipment doesn't support configured encryption
+ */
+ if (!net->a5_encryption) {
+ status = GSM_SECURITY_NOAVAIL;
+ } else if (conn->lchan->encr.alg_id > RSL_ENC_ALG_A5(0)) {
+ DEBUGP(DMM, "Requesting to secure an already secure channel");
+ status = GSM_SECURITY_SUCCEEDED;
+ } else if (!ms_cm2_a5n_support(subscr->equipment.classmark2,
+ net->a5_encryption)) {
+ DEBUGP(DMM, "Subscriber equipment doesn't support requested encryption");
+ status = GSM_SECURITY_NOAVAIL;
+ }
+
+ /* If not done yet, try to get info for this user */
+ if (status < 0) {
+ rc = auth_get_tuple_for_subscr(&atuple, subscr, key_seq);
+ if (rc <= 0)
+ status = GSM_SECURITY_NOAVAIL;
+ }
+
+ /* Are we done yet ? */
+ if (status >= 0)
+ return cb ?
+ cb(GSM_HOOK_RR_SECURITY, status, NULL, conn, cb_data) :
+ 0;
+
+ /* Start an operation (can't have more than one pending !!!) */
+ if (conn->sec_operation)
+ return -EBUSY;
+
+ allocate_security_operation(conn);
+ op = conn->sec_operation;
+ op->cb = cb;
+ op->cb_data = cb_data;
+ memcpy(&op->atuple, &atuple, sizeof(struct gsm_auth_tuple));
+
+ /* FIXME: Should start a timer for completion ... */
+
+ /* Then do whatever is needed ... */
+ if (rc == AUTH_DO_AUTH_THAN_CIPH) {
+ /* Start authentication */
+ return gsm48_tx_mm_auth_req(conn, op->atuple.rand, op->atuple.key_seq);
+ } else if (rc == AUTH_DO_CIPH) {
+ /* Start ciphering directly */
+ return gsm0808_cipher_mode(conn, net->a5_encryption,
+ op->atuple.kc, 8, 0);
+ }
+
+ return -EINVAL; /* not reached */
+}
+
+static int authorize_subscriber(struct gsm_loc_updating_operation *loc,
+ struct gsm_subscriber *subscriber)
+{
+ if (!subscriber)
+ return 0;
+
+ /*
+ * Do not send accept yet as more information should arrive. Some
+ * phones will not send us the information and we will have to check
+ * what we want to do with that.
+ */
+ if (loc && (loc->waiting_for_imsi || loc->waiting_for_imei))
+ return 0;
+
+ switch (subscriber->net->auth_policy) {
+ case GSM_AUTH_POLICY_CLOSED:
+ return subscriber->authorized;
+ case GSM_AUTH_POLICY_TOKEN:
+ if (subscriber->authorized)
+ return subscriber->authorized;
+ return (subscriber->flags & GSM_SUBSCRIBER_FIRST_CONTACT);
+ case GSM_AUTH_POLICY_ACCEPT_ALL:
+ return 1;
+ default:
+ return 0;
+ }
+}
+
+static void release_loc_updating_req(struct gsm_subscriber_connection *conn)
+{
+ if (!conn->loc_operation)
+ return;
+
+ /* No need to keep the connection up */
+ release_anchor(conn);
+
+ bsc_del_timer(&conn->loc_operation->updating_timer);
+ talloc_free(conn->loc_operation);
+ conn->loc_operation = NULL;
+ msc_release_connection(conn);
+}
+
+static void allocate_loc_updating_req(struct gsm_subscriber_connection *conn)
+{
+ if (conn->loc_operation)
+ LOGP(DMM, LOGL_ERROR, "Connection already had operation.\n");
+ release_loc_updating_req(conn);
+
+ conn->loc_operation = talloc_zero(tall_locop_ctx,
+ struct gsm_loc_updating_operation);
+}
+
+static int _gsm0408_authorize_sec_cb(unsigned int hooknum, unsigned int event,
+ struct msgb *msg, void *data, void *param)
+{
+ struct gsm_subscriber_connection *conn = data;
+ int rc = 0;
+
+ switch (event) {
+ case GSM_SECURITY_AUTH_FAILED:
+ release_loc_updating_req(conn);
+ break;
+
+ case GSM_SECURITY_NOAVAIL:
+ case GSM_SECURITY_SUCCEEDED:
+ /* We're all good */
+ db_subscriber_alloc_tmsi(conn->subscr);
+ rc = gsm0408_loc_upd_acc(conn, conn->subscr->tmsi);
+ if (conn->bts->network->send_mm_info) {
+ /* send MM INFO with network name */
+ rc = gsm48_tx_mm_info(conn);
+ }
+
+ /* call subscr_update after putting the loc_upd_acc
+ * in the transmit queue, since S_SUBSCR_ATTACHED might
+ * trigger further action like SMS delivery */
+ subscr_update(conn->subscr, conn->bts,
+ GSM_SUBSCRIBER_UPDATE_ATTACHED);
+
+ /*
+ * The gsm0408_loc_upd_acc sends a MI with the TMSI. The
+ * MS needs to respond with a TMSI REALLOCATION COMPLETE
+ * (even if the TMSI is the same).
+ */
+ break;
+
+ default:
+ rc = -EINVAL;
+ };
+
+ return rc;
+}
+
+static int gsm0408_authorize(struct gsm_subscriber_connection *conn, struct msgb *msg)
+{
+ if (authorize_subscriber(conn->loc_operation, conn->subscr))
+ return gsm48_secure_channel(conn,
+ conn->loc_operation->key_seq,
+ _gsm0408_authorize_sec_cb, NULL);
+ return 0;
+}
+
+void gsm0408_clear_request(struct gsm_subscriber_connection *conn, uint32_t cause)
+{
+ struct gsm_trans *trans, *temp;
+
+ /* avoid someone issuing a clear */
+ conn->in_release = 1;
+
+ /*
+ * Cancel any outstanding location updating request
+ * operation taking place on the subscriber connection.
+ */
+ release_loc_updating_req(conn);
+
+ /* We might need to cancel the paging response or such. */
+ if (conn->sec_operation && conn->sec_operation->cb) {
+ conn->sec_operation->cb(GSM_HOOK_RR_SECURITY, GSM_SECURITY_AUTH_FAILED,
+ NULL, conn, conn->sec_operation->cb_data);
+ }
+
+ release_security_operation(conn);
+ release_anchor(conn);
+
+ /* Free all transactions that are associated with the released lchan */
+ /* FIXME: this is not neccessarily the right thing to do, we should
+ * only set trans->lchan to NULL and wait for another lchan to be
+ * established to the same MM entity (phone/subscriber) */
+ llist_for_each_entry_safe(trans, temp, &conn->bts->network->trans_list, entry) {
+ if (trans->conn == conn)
+ trans_free(trans);
+ }
+}
+
+void gsm0408_clear_all_trans(struct gsm_network *net, int protocol)
+{
+ struct gsm_trans *trans, *temp;
+
+ LOGP(DCC, LOGL_NOTICE, "Clearing all currently active transactions!!!\n");
+
+ llist_for_each_entry_safe(trans, temp, &net->trans_list, entry) {
+ if (trans->protocol == protocol) {
+ trans->callref = 0;
+ trans_free(trans);
+ }
+ }
+}
+
+/* Chapter 9.2.14 : Send LOCATION UPDATING REJECT */
+int gsm0408_loc_upd_rej(struct gsm_subscriber_connection *conn, u_int8_t cause)
+{
+ struct gsm_bts *bts = conn->bts;
+ struct msgb *msg;
+
+ counter_inc(bts->network->stats.loc_upd_resp.reject);
+
+ msg = gsm48_create_loc_upd_rej(cause);
+ if (!msg) {
+ LOGP(DMM, LOGL_ERROR, "Failed to create msg for LOCATION UPDATING REJECT.\n");
+ return -1;
+ }
+
+ msg->lchan = conn->lchan;
+
+ LOGP(DMM, LOGL_INFO, "Subscriber %s: LOCATION UPDATING REJECT "
+ "LAC=%u BTS=%u\n", conn->subscr ?
+ subscr_name(conn->subscr) : "unknown",
+ bts->location_area_code, bts->nr);
+
+ return gsm48_conn_sendmsg(msg, conn, NULL);
+}
+
+/* Chapter 9.2.13 : Send LOCATION UPDATE ACCEPT */
+int gsm0408_loc_upd_acc(struct gsm_subscriber_connection *conn, u_int32_t tmsi)
+{
+ struct gsm_bts *bts = conn->bts;
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh;
+ struct gsm48_loc_area_id *lai;
+ u_int8_t *mid;
+
+ msg->lchan = conn->lchan;
+
+ gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+ gh->proto_discr = GSM48_PDISC_MM;
+ gh->msg_type = GSM48_MT_MM_LOC_UPD_ACCEPT;
+
+ lai = (struct gsm48_loc_area_id *) msgb_put(msg, sizeof(*lai));
+ gsm48_generate_lai(lai, bts->network->country_code,
+ bts->network->network_code, bts->location_area_code);
+
+ mid = msgb_put(msg, GSM48_MID_TMSI_LEN);
+ gsm48_generate_mid_from_tmsi(mid, tmsi);
+
+ DEBUGP(DMM, "-> LOCATION UPDATE ACCEPT\n");
+
+ counter_inc(bts->network->stats.loc_upd_resp.accept);
+
+ return gsm48_conn_sendmsg(msg, conn, NULL);
+}
+
+/* Transmit Chapter 9.2.10 Identity Request */
+static int mm_tx_identity_req(struct gsm_subscriber_connection *conn, u_int8_t id_type)
+{
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh;
+
+ msg->lchan = conn->lchan;
+
+ gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh) + 1);
+ gh->proto_discr = GSM48_PDISC_MM;
+ gh->msg_type = GSM48_MT_MM_ID_REQ;
+ gh->data[0] = id_type;
+
+ return gsm48_conn_sendmsg(msg, conn, NULL);
+}
+
+
+/* Parse Chapter 9.2.11 Identity Response */
+static int mm_rx_id_resp(struct gsm_subscriber_connection *conn, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ struct gsm_lchan *lchan = msg->lchan;
+ struct gsm_bts *bts = lchan->ts->trx->bts;
+ struct gsm_network *net = bts->network;
+ u_int8_t mi_type = gh->data[1] & GSM_MI_TYPE_MASK;
+ char mi_string[GSM48_MI_SIZE];
+
+ gsm48_mi_to_string(mi_string, sizeof(mi_string), &gh->data[1], gh->data[0]);
+ DEBUGP(DMM, "IDENTITY RESPONSE: mi_type=0x%02x MI(%s)\n",
+ mi_type, mi_string);
+
+ dispatch_signal(SS_SUBSCR, S_SUBSCR_IDENTITY, gh->data);
+
+ switch (mi_type) {
+ case GSM_MI_TYPE_IMSI:
+ /* look up subscriber based on IMSI, create if not found */
+ if (!conn->subscr) {
+ conn->subscr = subscr_get_by_imsi(net, mi_string);
+ if (!conn->subscr)
+ conn->subscr = db_create_subscriber(net, mi_string);
+ }
+ if (conn->loc_operation)
+ conn->loc_operation->waiting_for_imsi = 0;
+ break;
+ case GSM_MI_TYPE_IMEI:
+ case GSM_MI_TYPE_IMEISV:
+ /* update subscribe <-> IMEI mapping */
+ if (conn->subscr) {
+ db_subscriber_assoc_imei(conn->subscr, mi_string);
+ db_sync_equipment(&conn->subscr->equipment);
+ }
+ if (conn->loc_operation)
+ conn->loc_operation->waiting_for_imei = 0;
+ break;
+ }
+
+ /* Check if we can let the mobile station enter */
+ return gsm0408_authorize(conn, msg);
+}
+
+
+static void loc_upd_rej_cb(void *data)
+{
+ struct gsm_subscriber_connection *conn = data;
+ struct gsm_lchan *lchan = conn->lchan;
+ struct gsm_bts *bts = lchan->ts->trx->bts;
+
+ gsm0408_loc_upd_rej(conn, bts->network->reject_cause);
+ release_loc_updating_req(conn);
+}
+
+static void schedule_reject(struct gsm_subscriber_connection *conn)
+{
+ conn->loc_operation->updating_timer.cb = loc_upd_rej_cb;
+ conn->loc_operation->updating_timer.data = conn;
+ bsc_schedule_timer(&conn->loc_operation->updating_timer, 5, 0);
+}
+
+static const char *lupd_name(u_int8_t type)
+{
+ switch (type) {
+ case GSM48_LUPD_NORMAL:
+ return "NORMAL";
+ case GSM48_LUPD_PERIODIC:
+ return "PEROIDOC";
+ case GSM48_LUPD_IMSI_ATT:
+ return "IMSI ATTACH";
+ default:
+ return "UNKNOWN";
+ }
+}
+
+/* Chapter 9.2.15: Receive Location Updating Request */
+static int mm_rx_loc_upd_req(struct gsm_subscriber_connection *conn, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ struct gsm48_loc_upd_req *lu;
+ struct gsm_subscriber *subscr = NULL;
+ struct gsm_bts *bts = conn->bts;
+ u_int8_t mi_type;
+ char mi_string[GSM48_MI_SIZE];
+ int rc;
+
+ lu = (struct gsm48_loc_upd_req *) gh->data;
+
+ mi_type = lu->mi[0] & GSM_MI_TYPE_MASK;
+
+ gsm48_mi_to_string(mi_string, sizeof(mi_string), lu->mi, lu->mi_len);
+
+ DEBUGPC(DMM, "mi_type=0x%02x MI(%s) type=%s ", mi_type, mi_string,
+ lupd_name(lu->type));
+
+ dispatch_signal(SS_SUBSCR, S_SUBSCR_IDENTITY, &lu->mi_len);
+
+ switch (lu->type) {
+ case GSM48_LUPD_NORMAL:
+ counter_inc(bts->network->stats.loc_upd_type.normal);
+ break;
+ case GSM48_LUPD_IMSI_ATT:
+ counter_inc(bts->network->stats.loc_upd_type.attach);
+ break;
+ case GSM48_LUPD_PERIODIC:
+ counter_inc(bts->network->stats.loc_upd_type.periodic);
+ break;
+ }
+
+ /*
+ * Pseudo Spoof detection: Just drop a second/concurrent
+ * location updating request.
+ */
+ if (conn->loc_operation) {
+ DEBUGPC(DMM, "ignoring request due an existing one: %p.\n",
+ conn->loc_operation);
+ gsm0408_loc_upd_rej(conn, GSM48_REJECT_PROTOCOL_ERROR);
+ return 0;
+ }
+
+ allocate_loc_updating_req(conn);
+
+ conn->loc_operation->key_seq = lu->key_seq;
+
+ switch (mi_type) {
+ case GSM_MI_TYPE_IMSI:
+ DEBUGPC(DMM, "\n");
+ /* we always want the IMEI, too */
+ rc = mm_tx_identity_req(conn, GSM_MI_TYPE_IMEI);
+ conn->loc_operation->waiting_for_imei = 1;
+
+ /* look up subscriber based on IMSI, create if not found */
+ subscr = subscr_get_by_imsi(bts->network, mi_string);
+ if (!subscr) {
+ subscr = db_create_subscriber(bts->network, mi_string);
+ }
+ break;
+ case GSM_MI_TYPE_TMSI:
+ DEBUGPC(DMM, "\n");
+ /* look up the subscriber based on TMSI, request IMSI if it fails */
+ subscr = subscr_get_by_tmsi(bts->network,
+ tmsi_from_string(mi_string));
+ if (!subscr) {
+ /* send IDENTITY REQUEST message to get IMSI */
+ rc = mm_tx_identity_req(conn, GSM_MI_TYPE_IMSI);
+ conn->loc_operation->waiting_for_imsi = 1;
+ }
+ /* we always want the IMEI, too */
+ rc = mm_tx_identity_req(conn, GSM_MI_TYPE_IMEI);
+ conn->loc_operation->waiting_for_imei = 1;
+ break;
+ case GSM_MI_TYPE_IMEI:
+ case GSM_MI_TYPE_IMEISV:
+ /* no sim card... FIXME: what to do ? */
+ DEBUGPC(DMM, "unimplemented mobile identity type\n");
+ break;
+ default:
+ DEBUGPC(DMM, "unknown mobile identity type\n");
+ break;
+ }
+
+ /* schedule the reject timer */
+ schedule_reject(conn);
+
+ if (!subscr) {
+ DEBUGPC(DRR, "<- Can't find any subscriber for this ID\n");
+ /* FIXME: request id? close channel? */
+ return -EINVAL;
+ }
+
+ conn->subscr = subscr;
+ conn->subscr->equipment.classmark1 = lu->classmark1;
+
+ /* check if we can let the subscriber into our network immediately
+ * or if we need to wait for identity responses. */
+ return gsm0408_authorize(conn, msg);
+}
+
+#if 0
+static u_int8_t to_bcd8(u_int8_t val)
+{
+ return ((val / 10) << 4) | (val % 10);
+}
+#endif
+
+/* Section 9.2.15a */
+int gsm48_tx_mm_info(struct gsm_subscriber_connection *conn)
+{
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh;
+ struct gsm_network *net = conn->bts->network;
+ u_int8_t *ptr8;
+ int name_len, name_pad;
+#if 0
+ time_t cur_t;
+ struct tm* cur_time;
+ int tz15min;
+#endif
+
+ msg->lchan = conn->lchan;
+
+ gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+ gh->proto_discr = GSM48_PDISC_MM;
+ gh->msg_type = GSM48_MT_MM_INFO;
+
+ if (net->name_long) {
+#if 0
+ name_len = strlen(net->name_long);
+ /* 10.5.3.5a */
+ ptr8 = msgb_put(msg, 3);
+ ptr8[0] = GSM48_IE_NAME_LONG;
+ ptr8[1] = name_len*2 +1;
+ ptr8[2] = 0x90; /* UCS2, no spare bits, no CI */
+
+ ptr16 = (u_int16_t *) msgb_put(msg, name_len*2);
+ for (i = 0; i < name_len; i++)
+ ptr16[i] = htons(net->name_long[i]);
+
+ /* FIXME: Use Cell Broadcast, not UCS-2, since
+ * UCS-2 is only supported by later revisions of the spec */
+#endif
+ name_len = (strlen(net->name_long)*7)/8;
+ name_pad = (8 - strlen(net->name_long)*7)%8;
+ if (name_pad > 0)
+ name_len++;
+ /* 10.5.3.5a */
+ ptr8 = msgb_put(msg, 3);
+ ptr8[0] = GSM48_IE_NAME_LONG;
+ ptr8[1] = name_len +1;
+ ptr8[2] = 0x80 | name_pad; /* Cell Broadcast DCS, no CI */
+
+ ptr8 = msgb_put(msg, name_len);
+ gsm_7bit_encode(ptr8, net->name_long);
+
+ }
+
+ if (net->name_short) {
+#if 0
+ name_len = strlen(net->name_short);
+ /* 10.5.3.5a */
+ ptr8 = (u_int8_t *) msgb_put(msg, 3);
+ ptr8[0] = GSM48_IE_NAME_SHORT;
+ ptr8[1] = name_len*2 + 1;
+ ptr8[2] = 0x90; /* UCS2, no spare bits, no CI */
+
+ ptr16 = (u_int16_t *) msgb_put(msg, name_len*2);
+ for (i = 0; i < name_len; i++)
+ ptr16[i] = htons(net->name_short[i]);
+#endif
+ name_len = (strlen(net->name_short)*7)/8;
+ name_pad = (8 - strlen(net->name_short)*7)%8;
+ if (name_pad > 0)
+ name_len++;
+ /* 10.5.3.5a */
+ ptr8 = (u_int8_t *) msgb_put(msg, 3);
+ ptr8[0] = GSM48_IE_NAME_SHORT;
+ ptr8[1] = name_len +1;
+ ptr8[2] = 0x80 | name_pad; /* Cell Broadcast DCS, no CI */
+
+ ptr8 = msgb_put(msg, name_len);
+ gsm_7bit_encode(ptr8, net->name_short);
+
+ }
+
+#if 0
+ /* Section 10.5.3.9 */
+ cur_t = time(NULL);
+ cur_time = gmtime(&cur_t);
+ ptr8 = msgb_put(msg, 8);
+ ptr8[0] = GSM48_IE_NET_TIME_TZ;
+ ptr8[1] = to_bcd8(cur_time->tm_year % 100);
+ ptr8[2] = to_bcd8(cur_time->tm_mon);
+ ptr8[3] = to_bcd8(cur_time->tm_mday);
+ ptr8[4] = to_bcd8(cur_time->tm_hour);
+ ptr8[5] = to_bcd8(cur_time->tm_min);
+ ptr8[6] = to_bcd8(cur_time->tm_sec);
+ /* 02.42: coded as BCD encoded signed value in units of 15 minutes */
+ tz15min = (cur_time->tm_gmtoff)/(60*15);
+ ptr8[7] = to_bcd8(tz15min);
+ if (tz15min < 0)
+ ptr8[7] |= 0x80;
+#endif
+
+ DEBUGP(DMM, "-> MM INFO\n");
+
+ return gsm48_conn_sendmsg(msg, conn, NULL);
+}
+
+/* Section 9.2.2 */
+int gsm48_tx_mm_auth_req(struct gsm_subscriber_connection *conn, u_int8_t *rand, int key_seq)
+{
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+ struct gsm48_auth_req *ar = (struct gsm48_auth_req *) msgb_put(msg, sizeof(*ar));
+
+ DEBUGP(DMM, "-> AUTH REQ (rand = %s)\n", hexdump(rand, 16));
+
+ msg->lchan = conn->lchan;
+ gh->proto_discr = GSM48_PDISC_MM;
+ gh->msg_type = GSM48_MT_MM_AUTH_REQ;
+
+ ar->key_seq = key_seq;
+
+ /* 16 bytes RAND parameters */
+ if (rand)
+ memcpy(ar->rand, rand, 16);
+
+ return gsm48_conn_sendmsg(msg, conn, NULL);
+}
+
+/* Section 9.2.1 */
+int gsm48_tx_mm_auth_rej(struct gsm_subscriber_connection *conn)
+{
+ DEBUGP(DMM, "-> AUTH REJECT\n");
+ return gsm48_tx_simple(conn, GSM48_PDISC_MM, GSM48_MT_MM_AUTH_REJ);
+}
+
+static int gsm48_tx_mm_serv_ack(struct gsm_subscriber_connection *conn)
+{
+ DEBUGP(DMM, "-> CM SERVICE ACK\n");
+ return gsm48_tx_simple(conn, GSM48_PDISC_MM, GSM48_MT_MM_CM_SERV_ACC);
+}
+
+/* 9.2.6 CM service reject */
+static int gsm48_tx_mm_serv_rej(struct gsm_subscriber_connection *conn,
+ enum gsm48_reject_value value)
+{
+ struct msgb *msg;
+
+ msg = gsm48_create_mm_serv_rej(value);
+ if (!msg) {
+ LOGP(DMM, LOGL_ERROR, "Failed to allocate CM Service Reject.\n");
+ return -1;
+ }
+
+ DEBUGP(DMM, "-> CM SERVICE Reject cause: %d\n", value);
+ msg->lchan = conn->lchan;
+ return gsm48_conn_sendmsg(msg, conn, NULL);
+}
+
+static int _gsm48_rx_mm_serv_req_sec_cb(
+ unsigned int hooknum, unsigned int event,
+ struct msgb *msg, void *data, void *param)
+{
+ struct gsm_subscriber_connection *conn = data;
+ int rc = 0;
+
+ switch (event) {
+ case GSM_SECURITY_AUTH_FAILED:
+ /* Nothing to do */
+ break;
+
+ case GSM_SECURITY_NOAVAIL:
+ rc = gsm48_tx_mm_serv_ack(conn);
+ break;
+
+ case GSM_SECURITY_SUCCEEDED:
+ /* nothing to do. CIPHER MODE COMMAND is
+ * implicit CM SERV ACK */
+ break;
+
+ default:
+ rc = -EINVAL;
+ };
+
+ return rc;
+}
+
+/*
+ * Handle CM Service Requests
+ * a) Verify that the packet is long enough to contain the information
+ * we require otherwsie reject with INCORRECT_MESSAGE
+ * b) Try to parse the TMSI. If we do not have one reject
+ * c) Check that we know the subscriber with the TMSI otherwise reject
+ * with a HLR cause
+ * d) Set the subscriber on the gsm_lchan and accept
+ */
+static int gsm48_rx_mm_serv_req(struct gsm_subscriber_connection *conn, struct msgb *msg)
+{
+ u_int8_t mi_type;
+ char mi_string[GSM48_MI_SIZE];
+
+ struct gsm_bts *bts = conn->bts;
+ struct gsm_subscriber *subscr;
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ struct gsm48_service_request *req =
+ (struct gsm48_service_request *)gh->data;
+ /* unfortunately in Phase1 the classmark2 length is variable */
+ u_int8_t classmark2_len = gh->data[1];
+ u_int8_t *classmark2 = gh->data+2;
+ u_int8_t mi_len = *(classmark2 + classmark2_len);
+ u_int8_t *mi = (classmark2 + classmark2_len + 1);
+
+ DEBUGP(DMM, "<- CM SERVICE REQUEST ");
+ if (msg->data_len < sizeof(struct gsm48_service_request*)) {
+ DEBUGPC(DMM, "wrong sized message\n");
+ return gsm48_tx_mm_serv_rej(conn,
+ GSM48_REJECT_INCORRECT_MESSAGE);
+ }
+
+ if (msg->data_len < req->mi_len + 6) {
+ DEBUGPC(DMM, "does not fit in packet\n");
+ return gsm48_tx_mm_serv_rej(conn,
+ GSM48_REJECT_INCORRECT_MESSAGE);
+ }
+
+ mi_type = mi[0] & GSM_MI_TYPE_MASK;
+ if (mi_type != GSM_MI_TYPE_TMSI) {
+ DEBUGPC(DMM, "mi_type is not TMSI: %d\n", mi_type);
+ return gsm48_tx_mm_serv_rej(conn,
+ GSM48_REJECT_INCORRECT_MESSAGE);
+ }
+
+ gsm48_mi_to_string(mi_string, sizeof(mi_string), mi, mi_len);
+ DEBUGPC(DMM, "serv_type=0x%02x mi_type=0x%02x M(%s)\n",
+ req->cm_service_type, mi_type, mi_string);
+
+ dispatch_signal(SS_SUBSCR, S_SUBSCR_IDENTITY, (classmark2 + classmark2_len));
+
+ if (is_siemens_bts(bts))
+ send_siemens_mrpci(msg->lchan, classmark2-1);
+
+ subscr = subscr_get_by_tmsi(bts->network,
+ tmsi_from_string(mi_string));
+
+ /* FIXME: if we don't know the TMSI, inquire abit IMSI and allocate new TMSI */
+ if (!subscr)
+ return gsm48_tx_mm_serv_rej(conn,
+ GSM48_REJECT_IMSI_UNKNOWN_IN_HLR);
+
+ if (!conn->subscr)
+ conn->subscr = subscr;
+ else if (conn->subscr == subscr)
+ subscr_put(subscr); /* lchan already has a ref, don't need another one */
+ else {
+ DEBUGP(DMM, "<- CM Channel already owned by someone else?\n");
+ subscr_put(subscr);
+ }
+
+ subscr->equipment.classmark2_len = classmark2_len;
+ memcpy(subscr->equipment.classmark2, classmark2, classmark2_len);
+ db_sync_equipment(&subscr->equipment);
+
+ return gsm48_secure_channel(conn, req->cipher_key_seq,
+ _gsm48_rx_mm_serv_req_sec_cb, NULL);
+}
+
+static int gsm48_rx_mm_imsi_detach_ind(struct msgb *msg)
+{
+ struct gsm_bts *bts = msg->lchan->ts->trx->bts;
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ struct gsm48_imsi_detach_ind *idi =
+ (struct gsm48_imsi_detach_ind *) gh->data;
+ u_int8_t mi_type = idi->mi[0] & GSM_MI_TYPE_MASK;
+ char mi_string[GSM48_MI_SIZE];
+ struct gsm_subscriber *subscr = NULL;
+
+ gsm48_mi_to_string(mi_string, sizeof(mi_string), idi->mi, idi->mi_len);
+ DEBUGP(DMM, "IMSI DETACH INDICATION: mi_type=0x%02x MI(%s): ",
+ mi_type, mi_string);
+
+ counter_inc(bts->network->stats.loc_upd_type.detach);
+
+ switch (mi_type) {
+ case GSM_MI_TYPE_TMSI:
+ subscr = subscr_get_by_tmsi(bts->network,
+ tmsi_from_string(mi_string));
+ break;
+ case GSM_MI_TYPE_IMSI:
+ subscr = subscr_get_by_imsi(bts->network, mi_string);
+ break;
+ case GSM_MI_TYPE_IMEI:
+ case GSM_MI_TYPE_IMEISV:
+ /* no sim card... FIXME: what to do ? */
+ DEBUGPC(DMM, "unimplemented mobile identity type\n");
+ break;
+ default:
+ DEBUGPC(DMM, "unknown mobile identity type\n");
+ break;
+ }
+
+ if (subscr) {
+ subscr_update(subscr, msg->trx->bts,
+ GSM_SUBSCRIBER_UPDATE_DETACHED);
+ DEBUGP(DMM, "Subscriber: %s\n", subscr_name(subscr));
+
+ subscr->equipment.classmark1 = idi->classmark1;
+ db_sync_equipment(&subscr->equipment);
+
+ subscr_put(subscr);
+ } else
+ DEBUGP(DMM, "Unknown Subscriber ?!?\n");
+
+ /* FIXME: iterate over all transactions and release them,
+ * imagine an IMSI DETACH happening during an active call! */
+
+ /* subscriber is detached: should we release lchan? */
+ return 0;
+}
+
+static int gsm48_rx_mm_status(struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+
+ DEBUGP(DMM, "MM STATUS (reject cause 0x%02x)\n", gh->data[0]);
+
+ return 0;
+}
+
+/* Chapter 9.2.3: Authentication Response */
+static int gsm48_rx_mm_auth_resp(struct gsm_subscriber_connection *conn, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ struct gsm48_auth_resp *ar = (struct gsm48_auth_resp*) gh->data;
+ struct gsm_network *net = conn->bts->network;
+
+ DEBUGP(DMM, "MM AUTHENTICATION RESPONSE (sres = %s): ",
+ hexdump(ar->sres, 4));
+
+ /* Safety check */
+ if (!conn->sec_operation) {
+ DEBUGP(DMM, "No authentication/cipher operation in progress !!!\n");
+ return -EIO;
+ }
+
+ /* Validate SRES */
+ if (memcmp(conn->sec_operation->atuple.sres, ar->sres,4)) {
+ int rc;
+ gsm_cbfn *cb = conn->sec_operation->cb;
+
+ DEBUGPC(DMM, "Invalid (expected %s)\n",
+ hexdump(conn->sec_operation->atuple.sres, 4));
+
+ if (cb)
+ cb(GSM_HOOK_RR_SECURITY, GSM_SECURITY_AUTH_FAILED,
+ NULL, conn, conn->sec_operation->cb_data);
+
+ rc = gsm48_tx_mm_auth_rej(conn);
+ release_security_operation(conn);
+ return rc;
+ }
+
+ DEBUGPC(DMM, "OK\n");
+
+ /* Start ciphering */
+ return gsm0808_cipher_mode(conn, net->a5_encryption,
+ conn->sec_operation->atuple.kc, 8, 0);
+}
+
+/* Receive a GSM 04.08 Mobility Management (MM) message */
+static int gsm0408_rcv_mm(struct gsm_subscriber_connection *conn, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ int rc = 0;
+
+ switch (gh->msg_type & 0xbf) {
+ case GSM48_MT_MM_LOC_UPD_REQUEST:
+ DEBUGP(DMM, "LOCATION UPDATING REQUEST: ");
+ rc = mm_rx_loc_upd_req(conn, msg);
+ break;
+ case GSM48_MT_MM_ID_RESP:
+ rc = mm_rx_id_resp(conn, msg);
+ break;
+ case GSM48_MT_MM_CM_SERV_REQ:
+ rc = gsm48_rx_mm_serv_req(conn, msg);
+ break;
+ case GSM48_MT_MM_STATUS:
+ rc = gsm48_rx_mm_status(msg);
+ break;
+ case GSM48_MT_MM_TMSI_REALL_COMPL:
+ DEBUGP(DMM, "TMSI Reallocation Completed. Subscriber: %s\n",
+ conn->subscr ?
+ subscr_name(conn->subscr) :
+ "unknown subscriber");
+ release_loc_updating_req(conn);
+ break;
+ case GSM48_MT_MM_IMSI_DETACH_IND:
+ rc = gsm48_rx_mm_imsi_detach_ind(msg);
+ break;
+ case GSM48_MT_MM_CM_REEST_REQ:
+ DEBUGP(DMM, "CM REESTABLISH REQUEST: Not implemented\n");
+ break;
+ case GSM48_MT_MM_AUTH_RESP:
+ rc = gsm48_rx_mm_auth_resp(conn, msg);
+ break;
+ default:
+ LOGP(DMM, LOGL_NOTICE, "Unknown GSM 04.08 MM msg type 0x%02x\n",
+ gh->msg_type);
+ break;
+ }
+
+ return rc;
+}
+
+/* Receive a PAGING RESPONSE message from the MS */
+static int gsm48_rx_rr_pag_resp(struct gsm_subscriber_connection *conn, struct msgb *msg)
+{
+ struct gsm_bts *bts = conn->bts;
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ struct gsm48_pag_resp *resp;
+ u_int8_t *classmark2_lv = gh->data + 1;
+ u_int8_t mi_type;
+ char mi_string[GSM48_MI_SIZE];
+ struct gsm_subscriber *subscr = NULL;
+ int rc = 0;
+
+ resp = (struct gsm48_pag_resp *) &gh->data[0];
+ gsm48_paging_extract_mi(resp, msgb_l3len(msg) - sizeof(*gh),
+ mi_string, &mi_type);
+ DEBUGP(DRR, "PAGING RESPONSE: mi_type=0x%02x MI(%s)\n",
+ mi_type, mi_string);
+
+ switch (mi_type) {
+ case GSM_MI_TYPE_TMSI:
+ subscr = subscr_get_by_tmsi(bts->network,
+ tmsi_from_string(mi_string));
+ break;
+ case GSM_MI_TYPE_IMSI:
+ subscr = subscr_get_by_imsi(bts->network, mi_string);
+ break;
+ }
+
+ if (!subscr) {
+ DEBUGP(DRR, "<- Can't find any subscriber for this ID\n");
+ /* FIXME: request id? close channel? */
+ return -EINVAL;
+ }
+ DEBUGP(DRR, "<- Channel was requested by %s\n",
+ subscr->name && strlen(subscr->name) ? subscr->name : subscr->imsi);
+
+ subscr->equipment.classmark2_len = *classmark2_lv;
+ memcpy(subscr->equipment.classmark2, classmark2_lv+1, *classmark2_lv);
+ db_sync_equipment(&subscr->equipment);
+
+ rc = gsm48_handle_paging_resp(conn, msg, subscr);
+ return rc;
+}
+
+static int gsm48_rx_rr_classmark(struct gsm_subscriber_connection *conn, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ struct gsm_subscriber *subscr = conn->subscr;
+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);
+ u_int8_t cm2_len, cm3_len = 0;
+ u_int8_t *cm2, *cm3 = NULL;
+
+ DEBUGP(DRR, "CLASSMARK CHANGE ");
+
+ /* classmark 2 */
+ cm2_len = gh->data[0];
+ cm2 = &gh->data[1];
+ DEBUGPC(DRR, "CM2(len=%u) ", cm2_len);
+
+ if (payload_len > cm2_len + 1) {
+ /* we must have a classmark3 */
+ if (gh->data[cm2_len+1] != 0x20) {
+ DEBUGPC(DRR, "ERR CM3 TAG\n");
+ return -EINVAL;
+ }
+ if (cm2_len > 3) {
+ DEBUGPC(DRR, "CM2 too long!\n");
+ return -EINVAL;
+ }
+
+ cm3_len = gh->data[cm2_len+2];
+ cm3 = &gh->data[cm2_len+3];
+ if (cm3_len > 14) {
+ DEBUGPC(DRR, "CM3 len %u too long!\n", cm3_len);
+ return -EINVAL;
+ }
+ DEBUGPC(DRR, "CM3(len=%u)\n", cm3_len);
+ }
+ if (subscr) {
+ subscr->equipment.classmark2_len = cm2_len;
+ memcpy(subscr->equipment.classmark2, cm2, cm2_len);
+ if (cm3) {
+ subscr->equipment.classmark3_len = cm3_len;
+ memcpy(subscr->equipment.classmark3, cm3, cm3_len);
+ }
+ db_sync_equipment(&subscr->equipment);
+ }
+
+ return 0;
+}
+
+static int gsm48_rx_rr_status(struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+
+ DEBUGP(DRR, "STATUS rr_cause = %s\n",
+ rr_cause_name(gh->data[0]));
+
+ return 0;
+}
+
+static int gsm48_rx_rr_meas_rep(struct msgb *msg)
+{
+ struct gsm_meas_rep *meas_rep = lchan_next_meas_rep(msg->lchan);
+
+ /* This shouldn't actually end up here, as RSL treats
+ * L3 Info of 08.58 MEASUREMENT REPORT different by calling
+ * directly into gsm48_parse_meas_rep */
+ DEBUGP(DMEAS, "DIRECT GSM48 MEASUREMENT REPORT ?!? ");
+ gsm48_parse_meas_rep(meas_rep, msg);
+
+ return 0;
+}
+
+static int gsm48_rx_rr_app_info(struct gsm_subscriber_connection *conn, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ u_int8_t apdu_id_flags;
+ u_int8_t apdu_len;
+ u_int8_t *apdu_data;
+
+ apdu_id_flags = gh->data[0];
+ apdu_len = gh->data[1];
+ apdu_data = gh->data+2;
+
+ DEBUGP(DNM, "RX APPLICATION INFO id/flags=0x%02x apdu_len=%u apdu=%s",
+ apdu_id_flags, apdu_len, hexdump(apdu_data, apdu_len));
+
+ return db_apdu_blob_store(conn->subscr, apdu_id_flags, apdu_len, apdu_data);
+}
+
+/* Chapter 9.1.10 Ciphering Mode Complete */
+static int gsm48_rx_rr_ciph_m_compl(struct gsm_subscriber_connection *conn, struct msgb *msg)
+{
+ gsm_cbfn *cb;
+ int rc = 0;
+
+ DEBUGP(DRR, "CIPHERING MODE COMPLETE\n");
+
+ /* Safety check */
+ if (!conn->sec_operation) {
+ DEBUGP(DRR, "No authentication/cipher operation in progress !!!\n");
+ return -EIO;
+ }
+
+ /* FIXME: check for MI (if any) */
+
+ /* Call back whatever was in progress (if anything) ... */
+ cb = conn->sec_operation->cb;
+ if (cb) {
+ rc = cb(GSM_HOOK_RR_SECURITY, GSM_SECURITY_SUCCEEDED,
+ NULL, conn, conn->sec_operation->cb_data);
+ }
+
+ /* Complete the operation */
+ release_security_operation(conn);
+
+ return rc;
+}
+
+/* Chapter 9.1.16 Handover complete */
+static int gsm48_rx_rr_ho_compl(struct msgb *msg)
+{
+ struct lchan_signal_data sig;
+ struct gsm48_hdr *gh = msgb_l3(msg);
+
+ DEBUGP(DRR, "HANDOVER COMPLETE cause = %s\n",
+ rr_cause_name(gh->data[0]));
+
+ sig.lchan = msg->lchan;
+ sig.mr = NULL;
+ dispatch_signal(SS_LCHAN, S_LCHAN_HANDOVER_COMPL, &sig);
+ /* FIXME: release old channel */
+
+ return 0;
+}
+
+/* Chapter 9.1.17 Handover Failure */
+static int gsm48_rx_rr_ho_fail(struct msgb *msg)
+{
+ struct lchan_signal_data sig;
+ struct gsm48_hdr *gh = msgb_l3(msg);
+
+ DEBUGP(DRR, "HANDOVER FAILED cause = %s\n",
+ rr_cause_name(gh->data[0]));
+
+ sig.lchan = msg->lchan;
+ sig.mr = NULL;
+ dispatch_signal(SS_LCHAN, S_LCHAN_HANDOVER_FAIL, &sig);
+ /* FIXME: release allocated new channel */
+
+ return 0;
+}
+
+/* Receive a GSM 04.08 Radio Resource (RR) message */
+static int gsm0408_rcv_rr(struct gsm_subscriber_connection *conn, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ int rc = 0;
+
+ switch (gh->msg_type) {
+ case GSM48_MT_RR_CLSM_CHG:
+ rc = gsm48_rx_rr_classmark(conn, msg);
+ break;
+ case GSM48_MT_RR_GPRS_SUSP_REQ:
+ DEBUGP(DRR, "GRPS SUSPEND REQUEST\n");
+ break;
+ case GSM48_MT_RR_PAG_RESP:
+ rc = gsm48_rx_rr_pag_resp(conn, msg);
+ break;
+ case GSM48_MT_RR_STATUS:
+ rc = gsm48_rx_rr_status(msg);
+ break;
+ case GSM48_MT_RR_MEAS_REP:
+ rc = gsm48_rx_rr_meas_rep(msg);
+ break;
+ case GSM48_MT_RR_APP_INFO:
+ rc = gsm48_rx_rr_app_info(conn, msg);
+ break;
+ case GSM48_MT_RR_CIPH_M_COMPL:
+ rc = gsm48_rx_rr_ciph_m_compl(conn, msg);
+ break;
+ case GSM48_MT_RR_HANDO_COMPL:
+ rc = gsm48_rx_rr_ho_compl(msg);
+ break;
+ case GSM48_MT_RR_HANDO_FAIL:
+ rc = gsm48_rx_rr_ho_fail(msg);
+ break;
+ default:
+ LOGP(DRR, LOGL_NOTICE, "Unimplemented "
+ "GSM 04.08 RR msg type 0x%02x\n", gh->msg_type);
+ break;
+ }
+
+ return rc;
+}
+
+int gsm48_send_rr_app_info(struct gsm_subscriber_connection *conn, u_int8_t apdu_id,
+ u_int8_t apdu_len, const u_int8_t *apdu)
+{
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh;
+
+ msg->lchan = conn->lchan;
+
+ DEBUGP(DRR, "TX APPLICATION INFO id=0x%02x, len=%u\n",
+ apdu_id, apdu_len);
+
+ gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh) + 2 + apdu_len);
+ gh->proto_discr = GSM48_PDISC_RR;
+ gh->msg_type = GSM48_MT_RR_APP_INFO;
+ gh->data[0] = apdu_id;
+ gh->data[1] = apdu_len;
+ memcpy(gh->data+2, apdu, apdu_len);
+
+ return gsm48_conn_sendmsg(msg, conn, NULL);
+}
+
+/* Call Control */
+
+/* The entire call control code is written in accordance with Figure 7.10c
+ * for 'very early assignment', i.e. we allocate a TCH/F during IMMEDIATE
+ * ASSIGN, then first use that TCH/F for signalling and later MODE MODIFY
+ * it for voice */
+
+static void new_cc_state(struct gsm_trans *trans, int state)
+{
+ if (state > 31 || state < 0)
+ return;
+
+ DEBUGP(DCC, "new state %s -> %s\n",
+ gsm48_cc_state_name(trans->cc.state),
+ gsm48_cc_state_name(state));
+
+ trans->cc.state = state;
+}
+
+static int gsm48_cc_tx_status(struct gsm_trans *trans, void *arg)
+{
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+ u_int8_t *cause, *call_state;
+
+ gh->msg_type = GSM48_MT_CC_STATUS;
+
+ cause = msgb_put(msg, 3);
+ cause[0] = 2;
+ cause[1] = GSM48_CAUSE_CS_GSM | GSM48_CAUSE_LOC_USER;
+ cause[2] = 0x80 | 30; /* response to status inquiry */
+
+ call_state = msgb_put(msg, 1);
+ call_state[0] = 0xc0 | 0x00;
+
+ return gsm48_conn_sendmsg(msg, trans->conn, trans);
+}
+
+static int gsm48_tx_simple(struct gsm_subscriber_connection *conn,
+ u_int8_t pdisc, u_int8_t msg_type)
+{
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+
+ msg->lchan = conn->lchan;
+
+ gh->proto_discr = pdisc;
+ gh->msg_type = msg_type;
+
+ return gsm48_conn_sendmsg(msg, conn, NULL);
+}
+
+static void gsm48_stop_cc_timer(struct gsm_trans *trans)
+{
+ if (bsc_timer_pending(&trans->cc.timer)) {
+ DEBUGP(DCC, "stopping pending timer T%x\n", trans->cc.Tcurrent);
+ bsc_del_timer(&trans->cc.timer);
+ trans->cc.Tcurrent = 0;
+ }
+}
+
+static int mncc_recvmsg(struct gsm_network *net, struct gsm_trans *trans,
+ int msg_type, struct gsm_mncc *mncc)
+{
+ struct msgb *msg;
+ unsigned char *data;
+
+ if (trans)
+ if (trans->conn && trans->conn->lchan)
+ DEBUGP(DCC, "(bts %d trx %d ts %d ti %x sub %s) "
+ "Sending '%s' to MNCC.\n",
+ trans->conn->lchan->ts->trx->bts->nr,
+ trans->conn->lchan->ts->trx->nr,
+ trans->conn->lchan->ts->nr, trans->transaction_id,
+ (trans->subscr)?(trans->subscr->extension):"-",
+ get_mncc_name(msg_type));
+ else
+ DEBUGP(DCC, "(bts - trx - ts - ti -- sub %s) "
+ "Sending '%s' to MNCC.\n",
+ (trans->subscr)?(trans->subscr->extension):"-",
+ get_mncc_name(msg_type));
+ else
+ DEBUGP(DCC, "(bts - trx - ts - ti -- sub -) "
+ "Sending '%s' to MNCC.\n", get_mncc_name(msg_type));
+
+ mncc->msg_type = msg_type;
+
+ msg = msgb_alloc(sizeof(struct gsm_mncc), "MNCC");
+ if (!msg)
+ return -ENOMEM;
+
+ data = msgb_put(msg, sizeof(struct gsm_mncc));
+ memcpy(data, mncc, sizeof(struct gsm_mncc));
+
+ cc_tx_to_mncc(net, msg);
+
+ return 0;
+}
+
+int mncc_release_ind(struct gsm_network *net, struct gsm_trans *trans,
+ u_int32_t callref, int location, int value)
+{
+ struct gsm_mncc rel;
+
+ memset(&rel, 0, sizeof(rel));
+ rel.callref = callref;
+ mncc_set_cause(&rel, location, value);
+ return mncc_recvmsg(net, trans, MNCC_REL_IND, &rel);
+}
+
+/* Call Control Specific transaction release.
+ * gets called by trans_free, DO NOT CALL YOURSELF! */
+void _gsm48_cc_trans_free(struct gsm_trans *trans)
+{
+ gsm48_stop_cc_timer(trans);
+
+ /* send release to L4, if callref still exists */
+ if (trans->callref) {
+ /* Ressource unavailable */
+ mncc_release_ind(trans->subscr->net, trans, trans->callref,
+ GSM48_CAUSE_LOC_PRN_S_LU,
+ GSM48_CC_CAUSE_RESOURCE_UNAVAIL);
+ }
+ if (trans->cc.state != GSM_CSTATE_NULL)
+ new_cc_state(trans, GSM_CSTATE_NULL);
+ if (trans->conn)
+ trau_mux_unmap(&trans->conn->lchan->ts->e1_link, trans->callref);
+}
+
+static int gsm48_cc_tx_setup(struct gsm_trans *trans, void *arg);
+
+/* call-back from paging the B-end of the connection */
+static int setup_trig_pag_evt(unsigned int hooknum, unsigned int event,
+ struct msgb *msg, void *_conn, void *param)
+{
+ int found = 0;
+ struct gsm_subscriber_connection *conn = _conn;
+ struct gsm_network **paging_request = param, *net;
+ struct gsm_trans *transt, *tmp;
+
+ if (hooknum != GSM_HOOK_RR_PAGING)
+ return -EINVAL;
+
+ net = *paging_request;
+ if (!net) {
+ DEBUGP(DCC, "Error Network not set!\n");
+ return -EINVAL;
+ }
+
+ /* check all tranactions (without lchan) for subscriber */
+ llist_for_each_entry_safe(transt, tmp, &net->trans_list, entry) {
+ if (transt->paging_request != paging_request || transt->conn)
+ continue;
+ switch (event) {
+ case GSM_PAGING_SUCCEEDED:
+ if (!conn) // paranoid
+ break;
+ DEBUGP(DCC, "Paging subscr %s succeeded!\n",
+ transt->subscr->extension);
+ found = 1;
+ /* Assign lchan */
+ if (!transt->conn) {
+ transt->paging_request = NULL;
+ transt->conn = conn;
+ conn->put_channel = 1;
+ }
+ /* send SETUP request to called party */
+ gsm48_cc_tx_setup(transt, &transt->cc.msg);
+ break;
+ case GSM_PAGING_EXPIRED:
+ case GSM_PAGING_BUSY:
+ DEBUGP(DCC, "Paging subscr %s expired!\n",
+ transt->subscr->extension);
+ /* Temporarily out of order */
+ found = 1;
+ mncc_release_ind(transt->subscr->net, transt,
+ transt->callref,
+ GSM48_CAUSE_LOC_PRN_S_LU,
+ GSM48_CC_CAUSE_DEST_OOO);
+ transt->callref = 0;
+ transt->paging_request = NULL;
+ trans_free(transt);
+ break;
+ }
+ }
+
+ talloc_free(paging_request);
+
+ /*
+ * FIXME: The queue needs to be kicked. This is likely to go through a RF
+ * failure and then the subscr will be poke again. This needs a lot of fixing
+ * in the subscriber queue code.
+ */
+ if (!found && conn)
+ conn->put_channel = 1;
+ return 0;
+}
+
+static int tch_recv_mncc(struct gsm_network *net, u_int32_t callref, int enable);
+
+/* handle audio path for handover */
+static int handle_ho_signal(unsigned int subsys, unsigned int signal,
+ void *handler_data, void *signal_data)
+{
+ struct rtp_socket *old_rs, *new_rs, *other_rs;
+ struct ho_signal_data *sig = signal_data;
+
+ if (subsys != SS_HO || signal != S_HANDOVER_ACK)
+ return 0;
+
+ if (ipacc_rtp_direct) {
+ LOGP(DHO, LOGL_ERROR, "unable to handover in direct RTP mode\n");
+ return 0;
+ }
+
+ /* RTP Proxy mode */
+ new_rs = sig->new_lchan->abis_ip.rtp_socket;
+ old_rs = sig->old_lchan->abis_ip.rtp_socket;
+
+ if (!new_rs) {
+ LOGP(DHO, LOGL_ERROR, "no RTP socket for new_lchan\n");
+ return -EIO;
+ }
+
+ rsl_ipacc_mdcx_to_rtpsock(sig->new_lchan);
+
+ if (!old_rs) {
+ LOGP(DHO, LOGL_ERROR, "no RTP socket for old_lchan\n");
+ return -EIO;
+ }
+
+ /* copy rx_action and reference to other sock */
+ new_rs->rx_action = old_rs->rx_action;
+ new_rs->tx_action = old_rs->tx_action;
+ new_rs->transmit = old_rs->transmit;
+
+ switch (sig->old_lchan->abis_ip.rtp_socket->rx_action) {
+ case RTP_PROXY:
+ other_rs = old_rs->proxy.other_sock;
+ rtp_socket_proxy(new_rs, other_rs);
+ /* delete reference to other end socket to prevent
+ * rtp_socket_free() from removing the inverse reference */
+ old_rs->proxy.other_sock = NULL;
+ break;
+ case RTP_RECV_UPSTREAM:
+ new_rs->receive = old_rs->receive;
+ break;
+ case RTP_NONE:
+ break;
+ }
+
+ return 0;
+}
+
+/* some other part of the code sends us a signal */
+static int handle_abisip_signal(unsigned int subsys, unsigned int signal,
+ void *handler_data, void *signal_data)
+{
+ struct gsm_lchan *lchan = signal_data;
+ int rc;
+ struct gsm_network *net;
+ struct gsm_trans *trans;
+
+ if (subsys != SS_ABISIP)
+ return 0;
+
+ /* in case we use direct BTS-to-BTS RTP */
+ if (ipacc_rtp_direct)
+ return 0;
+
+ switch (signal) {
+ case S_ABISIP_CRCX_ACK:
+ /* in case we don't use direct BTS-to-BTS RTP */
+ /* the BTS has successfully bound a TCH to a local ip/port,
+ * which means we can connect our UDP socket to it */
+ if (lchan->abis_ip.rtp_socket) {
+ rtp_socket_free(lchan->abis_ip.rtp_socket);
+ lchan->abis_ip.rtp_socket = NULL;
+ }
+
+ lchan->abis_ip.rtp_socket = rtp_socket_create();
+ if (!lchan->abis_ip.rtp_socket)
+ return -EIO;
+
+ rc = rtp_socket_connect(lchan->abis_ip.rtp_socket,
+ lchan->abis_ip.bound_ip,
+ lchan->abis_ip.bound_port);
+ if (rc < 0)
+ return -EIO;
+
+ /* check if any transactions on this lchan still have
+ * a tch_recv_mncc request pending */
+ net = lchan->ts->trx->bts->network;
+ llist_for_each_entry(trans, &net->trans_list, entry) {
+ if (trans->conn && trans->conn->lchan == lchan && trans->tch_recv) {
+ DEBUGP(DCC, "pending tch_recv_mncc request\n");
+ tch_recv_mncc(net, trans->callref, 1);
+ }
+ }
+ break;
+ case S_ABISIP_DLCX_IND:
+ /* the BTS tells us a RTP stream has been disconnected */
+ if (lchan->abis_ip.rtp_socket) {
+ rtp_socket_free(lchan->abis_ip.rtp_socket);
+ lchan->abis_ip.rtp_socket = NULL;
+ }
+
+ break;
+ }
+
+ return 0;
+}
+
+/* map two ipaccess RTP streams onto each other */
+static int tch_map(struct gsm_lchan *lchan, struct gsm_lchan *remote_lchan)
+{
+ struct gsm_bts *bts = lchan->ts->trx->bts;
+ struct gsm_bts *remote_bts = remote_lchan->ts->trx->bts;
+ int rc;
+
+ DEBUGP(DCC, "Setting up TCH map between (bts=%u,trx=%u,ts=%u) and (bts=%u,trx=%u,ts=%u)\n",
+ bts->nr, lchan->ts->trx->nr, lchan->ts->nr,
+ remote_bts->nr, remote_lchan->ts->trx->nr, remote_lchan->ts->nr);
+
+ if (bts->type != remote_bts->type) {
+ DEBUGP(DCC, "Cannot switch calls between different BTS types yet\n");
+ return -EINVAL;
+ }
+
+ // todo: map between different bts types
+ switch (bts->type) {
+ case GSM_BTS_TYPE_NANOBTS:
+ if (!ipacc_rtp_direct) {
+ /* connect the TCH's to our RTP proxy */
+ rc = rsl_ipacc_mdcx_to_rtpsock(lchan);
+ if (rc < 0)
+ return rc;
+ rc = rsl_ipacc_mdcx_to_rtpsock(remote_lchan);
+ if (rc < 0)
+ return rc;
+ /* connect them with each other */
+ rtp_socket_proxy(lchan->abis_ip.rtp_socket,
+ remote_lchan->abis_ip.rtp_socket);
+ } else {
+ /* directly connect TCH RTP streams to each other */
+ rc = rsl_ipacc_mdcx(lchan, remote_lchan->abis_ip.bound_ip,
+ remote_lchan->abis_ip.bound_port,
+ remote_lchan->abis_ip.rtp_payload2);
+ if (rc < 0)
+ return rc;
+ rc = rsl_ipacc_mdcx(remote_lchan, lchan->abis_ip.bound_ip,
+ lchan->abis_ip.bound_port,
+ lchan->abis_ip.rtp_payload2);
+ }
+ break;
+ case GSM_BTS_TYPE_BS11:
+ trau_mux_map_lchan(lchan, remote_lchan);
+ break;
+ default:
+ DEBUGP(DCC, "Unknown BTS type %u\n", bts->type);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* bridge channels of two transactions */
+static int tch_bridge(struct gsm_network *net, u_int32_t *refs)
+{
+ struct gsm_trans *trans1 = trans_find_by_callref(net, refs[0]);
+ struct gsm_trans *trans2 = trans_find_by_callref(net, refs[1]);
+
+ if (!trans1 || !trans2)
+ return -EIO;
+
+ if (!trans1->conn || !trans2->conn)
+ return -EIO;
+
+ /* through-connect channel */
+ return tch_map(trans1->conn->lchan, trans2->conn->lchan);
+}
+
+/* enable receive of channels to MNCC upqueue */
+static int tch_recv_mncc(struct gsm_network *net, u_int32_t callref, int enable)
+{
+ struct gsm_trans *trans;
+ struct gsm_lchan *lchan;
+ struct gsm_bts *bts;
+ int rc;
+
+ /* Find callref */
+ trans = trans_find_by_callref(net, callref);
+ if (!trans)
+ return -EIO;
+ if (!trans->conn)
+ return 0;
+ lchan = trans->conn->lchan;
+ bts = lchan->ts->trx->bts;
+
+ switch (bts->type) {
+ case GSM_BTS_TYPE_NANOBTS:
+ if (ipacc_rtp_direct) {
+ DEBUGP(DCC, "Error: RTP proxy is disabled\n");
+ return -EINVAL;
+ }
+ /* in case, we don't have a RTP socket yet, we note this
+ * in the transaction and try later */
+ if (!lchan->abis_ip.rtp_socket) {
+ trans->tch_recv = enable;
+ DEBUGP(DCC, "queue tch_recv_mncc request (%d)\n", enable);
+ return 0;
+ }
+ if (enable) {
+ /* connect the TCH's to our RTP proxy */
+ rc = rsl_ipacc_mdcx_to_rtpsock(lchan);
+ if (rc < 0)
+ return rc;
+ /* assign socket to application interface */
+ rtp_socket_upstream(lchan->abis_ip.rtp_socket,
+ net, callref);
+ } else
+ rtp_socket_upstream(lchan->abis_ip.rtp_socket,
+ net, 0);
+ break;
+ case GSM_BTS_TYPE_BS11:
+ if (enable)
+ return trau_recv_lchan(lchan, callref);
+ return trau_mux_unmap(NULL, callref);
+ break;
+ default:
+ DEBUGP(DCC, "Unknown BTS type %u\n", bts->type);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int gsm48_cc_rx_status_enq(struct gsm_trans *trans, struct msgb *msg)
+{
+ DEBUGP(DCC, "-> STATUS ENQ\n");
+ return gsm48_cc_tx_status(trans, msg);
+}
+
+static int gsm48_cc_tx_release(struct gsm_trans *trans, void *arg);
+static int gsm48_cc_tx_disconnect(struct gsm_trans *trans, void *arg);
+
+static void gsm48_cc_timeout(void *arg)
+{
+ struct gsm_trans *trans = arg;
+ int disconnect = 0, release = 0;
+ int mo_cause = GSM48_CC_CAUSE_RECOVERY_TIMER;
+ int mo_location = GSM48_CAUSE_LOC_USER;
+ int l4_cause = GSM48_CC_CAUSE_NORMAL_UNSPEC;
+ int l4_location = GSM48_CAUSE_LOC_PRN_S_LU;
+ struct gsm_mncc mo_rel, l4_rel;
+
+ memset(&mo_rel, 0, sizeof(struct gsm_mncc));
+ mo_rel.callref = trans->callref;
+ memset(&l4_rel, 0, sizeof(struct gsm_mncc));
+ l4_rel.callref = trans->callref;
+
+ switch(trans->cc.Tcurrent) {
+ case 0x303:
+ release = 1;
+ l4_cause = GSM48_CC_CAUSE_USER_NOTRESPOND;
+ break;
+ case 0x310:
+ disconnect = 1;
+ l4_cause = GSM48_CC_CAUSE_USER_NOTRESPOND;
+ break;
+ case 0x313:
+ disconnect = 1;
+ /* unknown, did not find it in the specs */
+ break;
+ case 0x301:
+ disconnect = 1;
+ l4_cause = GSM48_CC_CAUSE_USER_NOTRESPOND;
+ break;
+ case 0x308:
+ if (!trans->cc.T308_second) {
+ /* restart T308 a second time */
+ gsm48_cc_tx_release(trans, &trans->cc.msg);
+ trans->cc.T308_second = 1;
+ break; /* stay in release state */
+ }
+ trans_free(trans);
+ return;
+// release = 1;
+// l4_cause = 14;
+// break;
+ case 0x306:
+ release = 1;
+ mo_cause = trans->cc.msg.cause.value;
+ mo_location = trans->cc.msg.cause.location;
+ break;
+ case 0x323:
+ disconnect = 1;
+ break;
+ default:
+ release = 1;
+ }
+
+ if (release && trans->callref) {
+ /* process release towards layer 4 */
+ mncc_release_ind(trans->subscr->net, trans, trans->callref,
+ l4_location, l4_cause);
+ trans->callref = 0;
+ }
+
+ if (disconnect && trans->callref) {
+ /* process disconnect towards layer 4 */
+ mncc_set_cause(&l4_rel, l4_location, l4_cause);
+ mncc_recvmsg(trans->subscr->net, trans, MNCC_DISC_IND, &l4_rel);
+ }
+
+ /* process disconnect towards mobile station */
+ if (disconnect || release) {
+ mncc_set_cause(&mo_rel, mo_location, mo_cause);
+ mo_rel.cause.diag[0] = ((trans->cc.Tcurrent & 0xf00) >> 8) + '0';
+ mo_rel.cause.diag[1] = ((trans->cc.Tcurrent & 0x0f0) >> 4) + '0';
+ mo_rel.cause.diag[2] = (trans->cc.Tcurrent & 0x00f) + '0';
+ mo_rel.cause.diag_len = 3;
+
+ if (disconnect)
+ gsm48_cc_tx_disconnect(trans, &mo_rel);
+ if (release)
+ gsm48_cc_tx_release(trans, &mo_rel);
+ }
+
+}
+
+static void gsm48_start_cc_timer(struct gsm_trans *trans, int current,
+ int sec, int micro)
+{
+ DEBUGP(DCC, "starting timer T%x with %d seconds\n", current, sec);
+ trans->cc.timer.cb = gsm48_cc_timeout;
+ trans->cc.timer.data = trans;
+ bsc_schedule_timer(&trans->cc.timer, sec, micro);
+ trans->cc.Tcurrent = current;
+}
+
+static int gsm48_cc_rx_setup(struct gsm_trans *trans, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ u_int8_t msg_type = gh->msg_type & 0xbf;
+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);
+ struct tlv_parsed tp;
+ struct gsm_mncc setup;
+
+ memset(&setup, 0, sizeof(struct gsm_mncc));
+ setup.callref = trans->callref;
+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, 0, 0);
+ /* emergency setup is identified by msg_type */
+ if (msg_type == GSM48_MT_CC_EMERG_SETUP)
+ setup.emergency = 1;
+
+ /* use subscriber as calling party number */
+ if (trans->subscr) {
+ setup.fields |= MNCC_F_CALLING;
+ strncpy(setup.calling.number, trans->subscr->extension,
+ sizeof(setup.calling.number)-1);
+ strncpy(setup.imsi, trans->subscr->imsi,
+ sizeof(setup.imsi)-1);
+ }
+ /* bearer capability */
+ if (TLVP_PRESENT(&tp, GSM48_IE_BEARER_CAP)) {
+ setup.fields |= MNCC_F_BEARER_CAP;
+ gsm48_decode_bearer_cap(&setup.bearer_cap,
+ TLVP_VAL(&tp, GSM48_IE_BEARER_CAP)-1);
+ }
+ /* facility */
+ if (TLVP_PRESENT(&tp, GSM48_IE_FACILITY)) {
+ setup.fields |= MNCC_F_FACILITY;
+ gsm48_decode_facility(&setup.facility,
+ TLVP_VAL(&tp, GSM48_IE_FACILITY)-1);
+ }
+ /* called party bcd number */
+ if (TLVP_PRESENT(&tp, GSM48_IE_CALLED_BCD)) {
+ setup.fields |= MNCC_F_CALLED;
+ gsm48_decode_called(&setup.called,
+ TLVP_VAL(&tp, GSM48_IE_CALLED_BCD)-1);
+ }
+ /* user-user */
+ if (TLVP_PRESENT(&tp, GSM48_IE_USER_USER)) {
+ setup.fields |= MNCC_F_USERUSER;
+ gsm48_decode_useruser(&setup.useruser,
+ TLVP_VAL(&tp, GSM48_IE_USER_USER)-1);
+ }
+ /* ss-version */
+ if (TLVP_PRESENT(&tp, GSM48_IE_SS_VERS)) {
+ setup.fields |= MNCC_F_SSVERSION;
+ gsm48_decode_ssversion(&setup.ssversion,
+ TLVP_VAL(&tp, GSM48_IE_SS_VERS)-1);
+ }
+ /* CLIR suppression */
+ if (TLVP_PRESENT(&tp, GSM48_IE_CLIR_SUPP))
+ setup.clir.sup = 1;
+ /* CLIR invocation */
+ if (TLVP_PRESENT(&tp, GSM48_IE_CLIR_INVOC))
+ setup.clir.inv = 1;
+ /* cc cap */
+ if (TLVP_PRESENT(&tp, GSM48_IE_CC_CAP)) {
+ setup.fields |= MNCC_F_CCCAP;
+ gsm48_decode_cccap(&setup.cccap,
+ TLVP_VAL(&tp, GSM48_IE_CC_CAP)-1);
+ }
+
+ new_cc_state(trans, GSM_CSTATE_INITIATED);
+
+ LOGP(DCC, LOGL_INFO, "Subscriber %s (%s) sends SETUP to %s\n",
+ subscr_name(trans->subscr), trans->subscr->extension,
+ setup.called.number);
+
+ counter_inc(trans->subscr->net->stats.call.mo_setup);
+
+ /* indicate setup to MNCC */
+ mncc_recvmsg(trans->subscr->net, trans, MNCC_SETUP_IND, &setup);
+
+ /* MNCC code will modify the channel asynchronously, we should
+ * ipaccess-bind only after the modification has been made to the
+ * lchan->tch_mode */
+ return 0;
+}
+
+static int gsm48_cc_tx_setup(struct gsm_trans *trans, void *arg)
+{
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh;
+ struct gsm_mncc *setup = arg;
+ int rc, trans_id;
+
+ gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+
+ /* transaction id must not be assigned */
+ if (trans->transaction_id != 0xff) { /* unasssigned */
+ DEBUGP(DCC, "TX Setup with assigned transaction. "
+ "This is not allowed!\n");
+ /* Temporarily out of order */
+ rc = mncc_release_ind(trans->subscr->net, trans, trans->callref,
+ GSM48_CAUSE_LOC_PRN_S_LU,
+ GSM48_CC_CAUSE_RESOURCE_UNAVAIL);
+ trans->callref = 0;
+ trans_free(trans);
+ return rc;
+ }
+
+ /* Get free transaction_id */
+ trans_id = trans_assign_trans_id(trans->subscr, GSM48_PDISC_CC, 0);
+ if (trans_id < 0) {
+ /* no free transaction ID */
+ rc = mncc_release_ind(trans->subscr->net, trans, trans->callref,
+ GSM48_CAUSE_LOC_PRN_S_LU,
+ GSM48_CC_CAUSE_RESOURCE_UNAVAIL);
+ trans->callref = 0;
+ trans_free(trans);
+ return rc;
+ }
+ trans->transaction_id = trans_id;
+
+ gh->msg_type = GSM48_MT_CC_SETUP;
+
+ gsm48_start_cc_timer(trans, 0x303, GSM48_T303);
+
+ /* bearer capability */
+ if (setup->fields & MNCC_F_BEARER_CAP)
+ gsm48_encode_bearer_cap(msg, 0, &setup->bearer_cap);
+ /* facility */
+ if (setup->fields & MNCC_F_FACILITY)
+ gsm48_encode_facility(msg, 0, &setup->facility);
+ /* progress */
+ if (setup->fields & MNCC_F_PROGRESS)
+ gsm48_encode_progress(msg, 0, &setup->progress);
+ /* calling party BCD number */
+ if (setup->fields & MNCC_F_CALLING)
+ gsm48_encode_calling(msg, &setup->calling);
+ /* called party BCD number */
+ if (setup->fields & MNCC_F_CALLED)
+ gsm48_encode_called(msg, &setup->called);
+ /* user-user */
+ if (setup->fields & MNCC_F_USERUSER)
+ gsm48_encode_useruser(msg, 0, &setup->useruser);
+ /* redirecting party BCD number */
+ if (setup->fields & MNCC_F_REDIRECTING)
+ gsm48_encode_redirecting(msg, &setup->redirecting);
+ /* signal */
+ if (setup->fields & MNCC_F_SIGNAL)
+ gsm48_encode_signal(msg, setup->signal);
+
+ new_cc_state(trans, GSM_CSTATE_CALL_PRESENT);
+
+ counter_inc(trans->subscr->net->stats.call.mt_setup);
+
+ return gsm48_conn_sendmsg(msg, trans->conn, trans);
+}
+
+static int gsm48_cc_rx_call_conf(struct gsm_trans *trans, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);
+ struct tlv_parsed tp;
+ struct gsm_mncc call_conf;
+
+ gsm48_stop_cc_timer(trans);
+ gsm48_start_cc_timer(trans, 0x310, GSM48_T310);
+
+ memset(&call_conf, 0, sizeof(struct gsm_mncc));
+ call_conf.callref = trans->callref;
+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, 0, 0);
+#if 0
+ /* repeat */
+ if (TLVP_PRESENT(&tp, GSM48_IE_REPEAT_CIR))
+ call_conf.repeat = 1;
+ if (TLVP_PRESENT(&tp, GSM48_IE_REPEAT_SEQ))
+ call_conf.repeat = 2;
+#endif
+ /* bearer capability */
+ if (TLVP_PRESENT(&tp, GSM48_IE_BEARER_CAP)) {
+ call_conf.fields |= MNCC_F_BEARER_CAP;
+ gsm48_decode_bearer_cap(&call_conf.bearer_cap,
+ TLVP_VAL(&tp, GSM48_IE_BEARER_CAP)-1);
+ }
+ /* cause */
+ if (TLVP_PRESENT(&tp, GSM48_IE_CAUSE)) {
+ call_conf.fields |= MNCC_F_CAUSE;
+ gsm48_decode_cause(&call_conf.cause,
+ TLVP_VAL(&tp, GSM48_IE_CAUSE)-1);
+ }
+ /* cc cap */
+ if (TLVP_PRESENT(&tp, GSM48_IE_CC_CAP)) {
+ call_conf.fields |= MNCC_F_CCCAP;
+ gsm48_decode_cccap(&call_conf.cccap,
+ TLVP_VAL(&tp, GSM48_IE_CC_CAP)-1);
+ }
+
+ new_cc_state(trans, GSM_CSTATE_MO_TERM_CALL_CONF);
+
+ return mncc_recvmsg(trans->subscr->net, trans, MNCC_CALL_CONF_IND,
+ &call_conf);
+}
+
+static int gsm48_cc_tx_call_proc(struct gsm_trans *trans, void *arg)
+{
+ struct gsm_mncc *proceeding = arg;
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+
+ gh->msg_type = GSM48_MT_CC_CALL_PROC;
+
+ new_cc_state(trans, GSM_CSTATE_MO_CALL_PROC);
+
+ /* bearer capability */
+ if (proceeding->fields & MNCC_F_BEARER_CAP)
+ gsm48_encode_bearer_cap(msg, 0, &proceeding->bearer_cap);
+ /* facility */
+ if (proceeding->fields & MNCC_F_FACILITY)
+ gsm48_encode_facility(msg, 0, &proceeding->facility);
+ /* progress */
+ if (proceeding->fields & MNCC_F_PROGRESS)
+ gsm48_encode_progress(msg, 0, &proceeding->progress);
+
+ return gsm48_conn_sendmsg(msg, trans->conn, trans);
+}
+
+static int gsm48_cc_rx_alerting(struct gsm_trans *trans, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);
+ struct tlv_parsed tp;
+ struct gsm_mncc alerting;
+
+ gsm48_stop_cc_timer(trans);
+ gsm48_start_cc_timer(trans, 0x301, GSM48_T301);
+
+ memset(&alerting, 0, sizeof(struct gsm_mncc));
+ alerting.callref = trans->callref;
+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, 0, 0);
+ /* facility */
+ if (TLVP_PRESENT(&tp, GSM48_IE_FACILITY)) {
+ alerting.fields |= MNCC_F_FACILITY;
+ gsm48_decode_facility(&alerting.facility,
+ TLVP_VAL(&tp, GSM48_IE_FACILITY)-1);
+ }
+
+ /* progress */
+ if (TLVP_PRESENT(&tp, GSM48_IE_PROGR_IND)) {
+ alerting.fields |= MNCC_F_PROGRESS;
+ gsm48_decode_progress(&alerting.progress,
+ TLVP_VAL(&tp, GSM48_IE_PROGR_IND)-1);
+ }
+ /* ss-version */
+ if (TLVP_PRESENT(&tp, GSM48_IE_SS_VERS)) {
+ alerting.fields |= MNCC_F_SSVERSION;
+ gsm48_decode_ssversion(&alerting.ssversion,
+ TLVP_VAL(&tp, GSM48_IE_SS_VERS)-1);
+ }
+
+ new_cc_state(trans, GSM_CSTATE_CALL_RECEIVED);
+
+ return mncc_recvmsg(trans->subscr->net, trans, MNCC_ALERT_IND,
+ &alerting);
+}
+
+static int gsm48_cc_tx_alerting(struct gsm_trans *trans, void *arg)
+{
+ struct gsm_mncc *alerting = arg;
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+
+ gh->msg_type = GSM48_MT_CC_ALERTING;
+
+ /* facility */
+ if (alerting->fields & MNCC_F_FACILITY)
+ gsm48_encode_facility(msg, 0, &alerting->facility);
+ /* progress */
+ if (alerting->fields & MNCC_F_PROGRESS)
+ gsm48_encode_progress(msg, 0, &alerting->progress);
+ /* user-user */
+ if (alerting->fields & MNCC_F_USERUSER)
+ gsm48_encode_useruser(msg, 0, &alerting->useruser);
+
+ new_cc_state(trans, GSM_CSTATE_CALL_DELIVERED);
+
+ return gsm48_conn_sendmsg(msg, trans->conn, trans);
+}
+
+static int gsm48_cc_tx_progress(struct gsm_trans *trans, void *arg)
+{
+ struct gsm_mncc *progress = arg;
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+
+ gh->msg_type = GSM48_MT_CC_PROGRESS;
+
+ /* progress */
+ gsm48_encode_progress(msg, 1, &progress->progress);
+ /* user-user */
+ if (progress->fields & MNCC_F_USERUSER)
+ gsm48_encode_useruser(msg, 0, &progress->useruser);
+
+ return gsm48_conn_sendmsg(msg, trans->conn, trans);
+}
+
+static int gsm48_cc_tx_connect(struct gsm_trans *trans, void *arg)
+{
+ struct gsm_mncc *connect = arg;
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+
+ gh->msg_type = GSM48_MT_CC_CONNECT;
+
+ gsm48_stop_cc_timer(trans);
+ gsm48_start_cc_timer(trans, 0x313, GSM48_T313);
+
+ /* facility */
+ if (connect->fields & MNCC_F_FACILITY)
+ gsm48_encode_facility(msg, 0, &connect->facility);
+ /* progress */
+ if (connect->fields & MNCC_F_PROGRESS)
+ gsm48_encode_progress(msg, 0, &connect->progress);
+ /* connected number */
+ if (connect->fields & MNCC_F_CONNECTED)
+ gsm48_encode_connected(msg, &connect->connected);
+ /* user-user */
+ if (connect->fields & MNCC_F_USERUSER)
+ gsm48_encode_useruser(msg, 0, &connect->useruser);
+
+ new_cc_state(trans, GSM_CSTATE_CONNECT_IND);
+
+ return gsm48_conn_sendmsg(msg, trans->conn, trans);
+}
+
+static int gsm48_cc_rx_connect(struct gsm_trans *trans, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);
+ struct tlv_parsed tp;
+ struct gsm_mncc connect;
+
+ gsm48_stop_cc_timer(trans);
+
+ memset(&connect, 0, sizeof(struct gsm_mncc));
+ connect.callref = trans->callref;
+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, 0, 0);
+ /* use subscriber as connected party number */
+ if (trans->subscr) {
+ connect.fields |= MNCC_F_CONNECTED;
+ strncpy(connect.connected.number, trans->subscr->extension,
+ sizeof(connect.connected.number)-1);
+ strncpy(connect.imsi, trans->subscr->imsi,
+ sizeof(connect.imsi)-1);
+ }
+ /* facility */
+ if (TLVP_PRESENT(&tp, GSM48_IE_FACILITY)) {
+ connect.fields |= MNCC_F_FACILITY;
+ gsm48_decode_facility(&connect.facility,
+ TLVP_VAL(&tp, GSM48_IE_FACILITY)-1);
+ }
+ /* user-user */
+ if (TLVP_PRESENT(&tp, GSM48_IE_USER_USER)) {
+ connect.fields |= MNCC_F_USERUSER;
+ gsm48_decode_useruser(&connect.useruser,
+ TLVP_VAL(&tp, GSM48_IE_USER_USER)-1);
+ }
+ /* ss-version */
+ if (TLVP_PRESENT(&tp, GSM48_IE_SS_VERS)) {
+ connect.fields |= MNCC_F_SSVERSION;
+ gsm48_decode_ssversion(&connect.ssversion,
+ TLVP_VAL(&tp, GSM48_IE_SS_VERS)-1);
+ }
+
+ new_cc_state(trans, GSM_CSTATE_CONNECT_REQUEST);
+ counter_inc(trans->subscr->net->stats.call.mt_connect);
+
+ return mncc_recvmsg(trans->subscr->net, trans, MNCC_SETUP_CNF, &connect);
+}
+
+
+static int gsm48_cc_rx_connect_ack(struct gsm_trans *trans, struct msgb *msg)
+{
+ struct gsm_mncc connect_ack;
+
+ gsm48_stop_cc_timer(trans);
+
+ new_cc_state(trans, GSM_CSTATE_ACTIVE);
+ counter_inc(trans->subscr->net->stats.call.mo_connect_ack);
+
+ memset(&connect_ack, 0, sizeof(struct gsm_mncc));
+ connect_ack.callref = trans->callref;
+
+ return mncc_recvmsg(trans->subscr->net, trans, MNCC_SETUP_COMPL_IND,
+ &connect_ack);
+}
+
+static int gsm48_cc_tx_connect_ack(struct gsm_trans *trans, void *arg)
+{
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+
+ gh->msg_type = GSM48_MT_CC_CONNECT_ACK;
+
+ new_cc_state(trans, GSM_CSTATE_ACTIVE);
+
+ return gsm48_conn_sendmsg(msg, trans->conn, trans);
+}
+
+static int gsm48_cc_rx_disconnect(struct gsm_trans *trans, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);
+ struct tlv_parsed tp;
+ struct gsm_mncc disc;
+
+ gsm48_stop_cc_timer(trans);
+
+ new_cc_state(trans, GSM_CSTATE_DISCONNECT_REQ);
+
+ memset(&disc, 0, sizeof(struct gsm_mncc));
+ disc.callref = trans->callref;
+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, GSM48_IE_CAUSE, 0);
+ /* cause */
+ if (TLVP_PRESENT(&tp, GSM48_IE_CAUSE)) {
+ disc.fields |= MNCC_F_CAUSE;
+ gsm48_decode_cause(&disc.cause,
+ TLVP_VAL(&tp, GSM48_IE_CAUSE)-1);
+ }
+ /* facility */
+ if (TLVP_PRESENT(&tp, GSM48_IE_FACILITY)) {
+ disc.fields |= MNCC_F_FACILITY;
+ gsm48_decode_facility(&disc.facility,
+ TLVP_VAL(&tp, GSM48_IE_FACILITY)-1);
+ }
+ /* user-user */
+ if (TLVP_PRESENT(&tp, GSM48_IE_USER_USER)) {
+ disc.fields |= MNCC_F_USERUSER;
+ gsm48_decode_useruser(&disc.useruser,
+ TLVP_VAL(&tp, GSM48_IE_USER_USER)-1);
+ }
+ /* ss-version */
+ if (TLVP_PRESENT(&tp, GSM48_IE_SS_VERS)) {
+ disc.fields |= MNCC_F_SSVERSION;
+ gsm48_decode_ssversion(&disc.ssversion,
+ TLVP_VAL(&tp, GSM48_IE_SS_VERS)-1);
+ }
+
+ return mncc_recvmsg(trans->subscr->net, trans, MNCC_DISC_IND, &disc);
+
+}
+
+static struct gsm_mncc_cause default_cause = {
+ .location = GSM48_CAUSE_LOC_PRN_S_LU,
+ .coding = 0,
+ .rec = 0,
+ .rec_val = 0,
+ .value = GSM48_CC_CAUSE_NORMAL_UNSPEC,
+ .diag_len = 0,
+ .diag = { 0 },
+};
+
+static int gsm48_cc_tx_disconnect(struct gsm_trans *trans, void *arg)
+{
+ struct gsm_mncc *disc = arg;
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+
+ gh->msg_type = GSM48_MT_CC_DISCONNECT;
+
+ gsm48_stop_cc_timer(trans);
+ gsm48_start_cc_timer(trans, 0x306, GSM48_T306);
+
+ /* cause */
+ if (disc->fields & MNCC_F_CAUSE)
+ gsm48_encode_cause(msg, 1, &disc->cause);
+ else
+ gsm48_encode_cause(msg, 1, &default_cause);
+
+ /* facility */
+ if (disc->fields & MNCC_F_FACILITY)
+ gsm48_encode_facility(msg, 0, &disc->facility);
+ /* progress */
+ if (disc->fields & MNCC_F_PROGRESS)
+ gsm48_encode_progress(msg, 0, &disc->progress);
+ /* user-user */
+ if (disc->fields & MNCC_F_USERUSER)
+ gsm48_encode_useruser(msg, 0, &disc->useruser);
+
+ /* store disconnect cause for T306 expiry */
+ memcpy(&trans->cc.msg, disc, sizeof(struct gsm_mncc));
+
+ new_cc_state(trans, GSM_CSTATE_DISCONNECT_IND);
+
+ return gsm48_conn_sendmsg(msg, trans->conn, trans);
+}
+
+static int gsm48_cc_rx_release(struct gsm_trans *trans, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);
+ struct tlv_parsed tp;
+ struct gsm_mncc rel;
+ int rc;
+
+ gsm48_stop_cc_timer(trans);
+
+ memset(&rel, 0, sizeof(struct gsm_mncc));
+ rel.callref = trans->callref;
+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, 0, 0);
+ /* cause */
+ if (TLVP_PRESENT(&tp, GSM48_IE_CAUSE)) {
+ rel.fields |= MNCC_F_CAUSE;
+ gsm48_decode_cause(&rel.cause,
+ TLVP_VAL(&tp, GSM48_IE_CAUSE)-1);
+ }
+ /* facility */
+ if (TLVP_PRESENT(&tp, GSM48_IE_FACILITY)) {
+ rel.fields |= MNCC_F_FACILITY;
+ gsm48_decode_facility(&rel.facility,
+ TLVP_VAL(&tp, GSM48_IE_FACILITY)-1);
+ }
+ /* user-user */
+ if (TLVP_PRESENT(&tp, GSM48_IE_USER_USER)) {
+ rel.fields |= MNCC_F_USERUSER;
+ gsm48_decode_useruser(&rel.useruser,
+ TLVP_VAL(&tp, GSM48_IE_USER_USER)-1);
+ }
+ /* ss-version */
+ if (TLVP_PRESENT(&tp, GSM48_IE_SS_VERS)) {
+ rel.fields |= MNCC_F_SSVERSION;
+ gsm48_decode_ssversion(&rel.ssversion,
+ TLVP_VAL(&tp, GSM48_IE_SS_VERS)-1);
+ }
+
+ if (trans->cc.state == GSM_CSTATE_RELEASE_REQ) {
+ /* release collision 5.4.5 */
+ rc = mncc_recvmsg(trans->subscr->net, trans, MNCC_REL_CNF, &rel);
+ } else {
+ rc = gsm48_tx_simple(trans->conn,
+ GSM48_PDISC_CC | (trans->transaction_id << 4),
+ GSM48_MT_CC_RELEASE_COMPL);
+ rc = mncc_recvmsg(trans->subscr->net, trans, MNCC_REL_IND, &rel);
+ }
+
+ new_cc_state(trans, GSM_CSTATE_NULL);
+
+ trans->callref = 0;
+ trans_free(trans);
+
+ return rc;
+}
+
+static int gsm48_cc_tx_release(struct gsm_trans *trans, void *arg)
+{
+ struct gsm_mncc *rel = arg;
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+
+ gh->msg_type = GSM48_MT_CC_RELEASE;
+
+ trans->callref = 0;
+
+ gsm48_stop_cc_timer(trans);
+ gsm48_start_cc_timer(trans, 0x308, GSM48_T308);
+
+ /* cause */
+ if (rel->fields & MNCC_F_CAUSE)
+ gsm48_encode_cause(msg, 0, &rel->cause);
+ /* facility */
+ if (rel->fields & MNCC_F_FACILITY)
+ gsm48_encode_facility(msg, 0, &rel->facility);
+ /* user-user */
+ if (rel->fields & MNCC_F_USERUSER)
+ gsm48_encode_useruser(msg, 0, &rel->useruser);
+
+ trans->cc.T308_second = 0;
+ memcpy(&trans->cc.msg, rel, sizeof(struct gsm_mncc));
+
+ if (trans->cc.state != GSM_CSTATE_RELEASE_REQ)
+ new_cc_state(trans, GSM_CSTATE_RELEASE_REQ);
+
+ return gsm48_conn_sendmsg(msg, trans->conn, trans);
+}
+
+static int gsm48_cc_rx_release_compl(struct gsm_trans *trans, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);
+ struct tlv_parsed tp;
+ struct gsm_mncc rel;
+ int rc = 0;
+
+ gsm48_stop_cc_timer(trans);
+
+ memset(&rel, 0, sizeof(struct gsm_mncc));
+ rel.callref = trans->callref;
+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, 0, 0);
+ /* cause */
+ if (TLVP_PRESENT(&tp, GSM48_IE_CAUSE)) {
+ rel.fields |= MNCC_F_CAUSE;
+ gsm48_decode_cause(&rel.cause,
+ TLVP_VAL(&tp, GSM48_IE_CAUSE)-1);
+ }
+ /* facility */
+ if (TLVP_PRESENT(&tp, GSM48_IE_FACILITY)) {
+ rel.fields |= MNCC_F_FACILITY;
+ gsm48_decode_facility(&rel.facility,
+ TLVP_VAL(&tp, GSM48_IE_FACILITY)-1);
+ }
+ /* user-user */
+ if (TLVP_PRESENT(&tp, GSM48_IE_USER_USER)) {
+ rel.fields |= MNCC_F_USERUSER;
+ gsm48_decode_useruser(&rel.useruser,
+ TLVP_VAL(&tp, GSM48_IE_USER_USER)-1);
+ }
+ /* ss-version */
+ if (TLVP_PRESENT(&tp, GSM48_IE_SS_VERS)) {
+ rel.fields |= MNCC_F_SSVERSION;
+ gsm48_decode_ssversion(&rel.ssversion,
+ TLVP_VAL(&tp, GSM48_IE_SS_VERS)-1);
+ }
+
+ if (trans->callref) {
+ switch (trans->cc.state) {
+ case GSM_CSTATE_CALL_PRESENT:
+ rc = mncc_recvmsg(trans->subscr->net, trans,
+ MNCC_REJ_IND, &rel);
+ break;
+ case GSM_CSTATE_RELEASE_REQ:
+ rc = mncc_recvmsg(trans->subscr->net, trans,
+ MNCC_REL_CNF, &rel);
+ break;
+ default:
+ rc = mncc_recvmsg(trans->subscr->net, trans,
+ MNCC_REL_IND, &rel);
+ }
+ }
+
+ trans->callref = 0;
+ trans_free(trans);
+
+ return rc;
+}
+
+static int gsm48_cc_tx_release_compl(struct gsm_trans *trans, void *arg)
+{
+ struct gsm_mncc *rel = arg;
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+ int ret;
+
+ gh->msg_type = GSM48_MT_CC_RELEASE_COMPL;
+
+ trans->callref = 0;
+
+ gsm48_stop_cc_timer(trans);
+
+ /* cause */
+ if (rel->fields & MNCC_F_CAUSE)
+ gsm48_encode_cause(msg, 0, &rel->cause);
+ /* facility */
+ if (rel->fields & MNCC_F_FACILITY)
+ gsm48_encode_facility(msg, 0, &rel->facility);
+ /* user-user */
+ if (rel->fields & MNCC_F_USERUSER)
+ gsm48_encode_useruser(msg, 0, &rel->useruser);
+
+ ret = gsm48_conn_sendmsg(msg, trans->conn, trans);
+
+ trans_free(trans);
+
+ return ret;
+}
+
+static int gsm48_cc_rx_facility(struct gsm_trans *trans, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);
+ struct tlv_parsed tp;
+ struct gsm_mncc fac;
+
+ memset(&fac, 0, sizeof(struct gsm_mncc));
+ fac.callref = trans->callref;
+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, GSM48_IE_FACILITY, 0);
+ /* facility */
+ if (TLVP_PRESENT(&tp, GSM48_IE_FACILITY)) {
+ fac.fields |= MNCC_F_FACILITY;
+ gsm48_decode_facility(&fac.facility,
+ TLVP_VAL(&tp, GSM48_IE_FACILITY)-1);
+ }
+ /* ss-version */
+ if (TLVP_PRESENT(&tp, GSM48_IE_SS_VERS)) {
+ fac.fields |= MNCC_F_SSVERSION;
+ gsm48_decode_ssversion(&fac.ssversion,
+ TLVP_VAL(&tp, GSM48_IE_SS_VERS)-1);
+ }
+
+ return mncc_recvmsg(trans->subscr->net, trans, MNCC_FACILITY_IND, &fac);
+}
+
+static int gsm48_cc_tx_facility(struct gsm_trans *trans, void *arg)
+{
+ struct gsm_mncc *fac = arg;
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+
+ gh->msg_type = GSM48_MT_CC_FACILITY;
+
+ /* facility */
+ gsm48_encode_facility(msg, 1, &fac->facility);
+
+ return gsm48_conn_sendmsg(msg, trans->conn, trans);
+}
+
+static int gsm48_cc_rx_hold(struct gsm_trans *trans, struct msgb *msg)
+{
+ struct gsm_mncc hold;
+
+ memset(&hold, 0, sizeof(struct gsm_mncc));
+ hold.callref = trans->callref;
+ return mncc_recvmsg(trans->subscr->net, trans, MNCC_HOLD_IND, &hold);
+}
+
+static int gsm48_cc_tx_hold_ack(struct gsm_trans *trans, void *arg)
+{
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+
+ gh->msg_type = GSM48_MT_CC_HOLD_ACK;
+
+ return gsm48_conn_sendmsg(msg, trans->conn, trans);
+}
+
+static int gsm48_cc_tx_hold_rej(struct gsm_trans *trans, void *arg)
+{
+ struct gsm_mncc *hold_rej = arg;
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+
+ gh->msg_type = GSM48_MT_CC_HOLD_REJ;
+
+ /* cause */
+ if (hold_rej->fields & MNCC_F_CAUSE)
+ gsm48_encode_cause(msg, 1, &hold_rej->cause);
+ else
+ gsm48_encode_cause(msg, 1, &default_cause);
+
+ return gsm48_conn_sendmsg(msg, trans->conn, trans);
+}
+
+static int gsm48_cc_rx_retrieve(struct gsm_trans *trans, struct msgb *msg)
+{
+ struct gsm_mncc retrieve;
+
+ memset(&retrieve, 0, sizeof(struct gsm_mncc));
+ retrieve.callref = trans->callref;
+ return mncc_recvmsg(trans->subscr->net, trans, MNCC_RETRIEVE_IND,
+ &retrieve);
+}
+
+static int gsm48_cc_tx_retrieve_ack(struct gsm_trans *trans, void *arg)
+{
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+
+ gh->msg_type = GSM48_MT_CC_RETR_ACK;
+
+ return gsm48_conn_sendmsg(msg, trans->conn, trans);
+}
+
+static int gsm48_cc_tx_retrieve_rej(struct gsm_trans *trans, void *arg)
+{
+ struct gsm_mncc *retrieve_rej = arg;
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+
+ gh->msg_type = GSM48_MT_CC_RETR_REJ;
+
+ /* cause */
+ if (retrieve_rej->fields & MNCC_F_CAUSE)
+ gsm48_encode_cause(msg, 1, &retrieve_rej->cause);
+ else
+ gsm48_encode_cause(msg, 1, &default_cause);
+
+ return gsm48_conn_sendmsg(msg, trans->conn, trans);
+}
+
+static int gsm48_cc_rx_start_dtmf(struct gsm_trans *trans, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);
+ struct tlv_parsed tp;
+ struct gsm_mncc dtmf;
+
+ memset(&dtmf, 0, sizeof(struct gsm_mncc));
+ dtmf.callref = trans->callref;
+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, 0, 0);
+ /* keypad facility */
+ if (TLVP_PRESENT(&tp, GSM48_IE_KPD_FACILITY)) {
+ dtmf.fields |= MNCC_F_KEYPAD;
+ gsm48_decode_keypad(&dtmf.keypad,
+ TLVP_VAL(&tp, GSM48_IE_KPD_FACILITY)-1);
+ }
+
+ return mncc_recvmsg(trans->subscr->net, trans, MNCC_START_DTMF_IND, &dtmf);
+}
+
+static int gsm48_cc_tx_start_dtmf_ack(struct gsm_trans *trans, void *arg)
+{
+ struct gsm_mncc *dtmf = arg;
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+
+ gh->msg_type = GSM48_MT_CC_START_DTMF_ACK;
+
+ /* keypad */
+ if (dtmf->fields & MNCC_F_KEYPAD)
+ gsm48_encode_keypad(msg, dtmf->keypad);
+
+ return gsm48_conn_sendmsg(msg, trans->conn, trans);
+}
+
+static int gsm48_cc_tx_start_dtmf_rej(struct gsm_trans *trans, void *arg)
+{
+ struct gsm_mncc *dtmf = arg;
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+
+ gh->msg_type = GSM48_MT_CC_START_DTMF_REJ;
+
+ /* cause */
+ if (dtmf->fields & MNCC_F_CAUSE)
+ gsm48_encode_cause(msg, 1, &dtmf->cause);
+ else
+ gsm48_encode_cause(msg, 1, &default_cause);
+
+ return gsm48_conn_sendmsg(msg, trans->conn, trans);
+}
+
+static int gsm48_cc_tx_stop_dtmf_ack(struct gsm_trans *trans, void *arg)
+{
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+
+ gh->msg_type = GSM48_MT_CC_STOP_DTMF_ACK;
+
+ return gsm48_conn_sendmsg(msg, trans->conn, trans);
+}
+
+static int gsm48_cc_rx_stop_dtmf(struct gsm_trans *trans, struct msgb *msg)
+{
+ struct gsm_mncc dtmf;
+
+ memset(&dtmf, 0, sizeof(struct gsm_mncc));
+ dtmf.callref = trans->callref;
+
+ return mncc_recvmsg(trans->subscr->net, trans, MNCC_STOP_DTMF_IND, &dtmf);
+}
+
+static int gsm48_cc_rx_modify(struct gsm_trans *trans, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);
+ struct tlv_parsed tp;
+ struct gsm_mncc modify;
+
+ memset(&modify, 0, sizeof(struct gsm_mncc));
+ modify.callref = trans->callref;
+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, GSM48_IE_BEARER_CAP, 0);
+ /* bearer capability */
+ if (TLVP_PRESENT(&tp, GSM48_IE_BEARER_CAP)) {
+ modify.fields |= MNCC_F_BEARER_CAP;
+ gsm48_decode_bearer_cap(&modify.bearer_cap,
+ TLVP_VAL(&tp, GSM48_IE_BEARER_CAP)-1);
+ }
+
+ new_cc_state(trans, GSM_CSTATE_MO_ORIG_MODIFY);
+
+ return mncc_recvmsg(trans->subscr->net, trans, MNCC_MODIFY_IND, &modify);
+}
+
+static int gsm48_cc_tx_modify(struct gsm_trans *trans, void *arg)
+{
+ struct gsm_mncc *modify = arg;
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+
+ gh->msg_type = GSM48_MT_CC_MODIFY;
+
+ gsm48_start_cc_timer(trans, 0x323, GSM48_T323);
+
+ /* bearer capability */
+ gsm48_encode_bearer_cap(msg, 1, &modify->bearer_cap);
+
+ new_cc_state(trans, GSM_CSTATE_MO_TERM_MODIFY);
+
+ return gsm48_conn_sendmsg(msg, trans->conn, trans);
+}
+
+static int gsm48_cc_rx_modify_complete(struct gsm_trans *trans, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);
+ struct tlv_parsed tp;
+ struct gsm_mncc modify;
+
+ gsm48_stop_cc_timer(trans);
+
+ memset(&modify, 0, sizeof(struct gsm_mncc));
+ modify.callref = trans->callref;
+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, GSM48_IE_BEARER_CAP, 0);
+ /* bearer capability */
+ if (TLVP_PRESENT(&tp, GSM48_IE_BEARER_CAP)) {
+ modify.fields |= MNCC_F_BEARER_CAP;
+ gsm48_decode_bearer_cap(&modify.bearer_cap,
+ TLVP_VAL(&tp, GSM48_IE_BEARER_CAP)-1);
+ }
+
+ new_cc_state(trans, GSM_CSTATE_ACTIVE);
+
+ return mncc_recvmsg(trans->subscr->net, trans, MNCC_MODIFY_CNF, &modify);
+}
+
+static int gsm48_cc_tx_modify_complete(struct gsm_trans *trans, void *arg)
+{
+ struct gsm_mncc *modify = arg;
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+
+ gh->msg_type = GSM48_MT_CC_MODIFY_COMPL;
+
+ /* bearer capability */
+ gsm48_encode_bearer_cap(msg, 1, &modify->bearer_cap);
+
+ new_cc_state(trans, GSM_CSTATE_ACTIVE);
+
+ return gsm48_conn_sendmsg(msg, trans->conn, trans);
+}
+
+static int gsm48_cc_rx_modify_reject(struct gsm_trans *trans, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);
+ struct tlv_parsed tp;
+ struct gsm_mncc modify;
+
+ gsm48_stop_cc_timer(trans);
+
+ memset(&modify, 0, sizeof(struct gsm_mncc));
+ modify.callref = trans->callref;
+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, GSM48_IE_BEARER_CAP, GSM48_IE_CAUSE);
+ /* bearer capability */
+ if (TLVP_PRESENT(&tp, GSM48_IE_BEARER_CAP)) {
+ modify.fields |= GSM48_IE_BEARER_CAP;
+ gsm48_decode_bearer_cap(&modify.bearer_cap,
+ TLVP_VAL(&tp, GSM48_IE_BEARER_CAP)-1);
+ }
+ /* cause */
+ if (TLVP_PRESENT(&tp, GSM48_IE_CAUSE)) {
+ modify.fields |= MNCC_F_CAUSE;
+ gsm48_decode_cause(&modify.cause,
+ TLVP_VAL(&tp, GSM48_IE_CAUSE)-1);
+ }
+
+ new_cc_state(trans, GSM_CSTATE_ACTIVE);
+
+ return mncc_recvmsg(trans->subscr->net, trans, MNCC_MODIFY_REJ, &modify);
+}
+
+static int gsm48_cc_tx_modify_reject(struct gsm_trans *trans, void *arg)
+{
+ struct gsm_mncc *modify = arg;
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+
+ gh->msg_type = GSM48_MT_CC_MODIFY_REJECT;
+
+ /* bearer capability */
+ gsm48_encode_bearer_cap(msg, 1, &modify->bearer_cap);
+ /* cause */
+ gsm48_encode_cause(msg, 1, &modify->cause);
+
+ new_cc_state(trans, GSM_CSTATE_ACTIVE);
+
+ return gsm48_conn_sendmsg(msg, trans->conn, trans);
+}
+
+static int gsm48_cc_tx_notify(struct gsm_trans *trans, void *arg)
+{
+ struct gsm_mncc *notify = arg;
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+
+ gh->msg_type = GSM48_MT_CC_NOTIFY;
+
+ /* notify */
+ gsm48_encode_notify(msg, notify->notify);
+
+ return gsm48_conn_sendmsg(msg, trans->conn, trans);
+}
+
+static int gsm48_cc_rx_notify(struct gsm_trans *trans, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);
+// struct tlv_parsed tp;
+ struct gsm_mncc notify;
+
+ memset(&notify, 0, sizeof(struct gsm_mncc));
+ notify.callref = trans->callref;
+// tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len);
+ if (payload_len >= 1)
+ gsm48_decode_notify(&notify.notify, gh->data);
+
+ return mncc_recvmsg(trans->subscr->net, trans, MNCC_NOTIFY_IND, &notify);
+}
+
+static int gsm48_cc_tx_userinfo(struct gsm_trans *trans, void *arg)
+{
+ struct gsm_mncc *user = arg;
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+
+ gh->msg_type = GSM48_MT_CC_USER_INFO;
+
+ /* user-user */
+ if (user->fields & MNCC_F_USERUSER)
+ gsm48_encode_useruser(msg, 1, &user->useruser);
+ /* more data */
+ if (user->more)
+ gsm48_encode_more(msg);
+
+ return gsm48_conn_sendmsg(msg, trans->conn, trans);
+}
+
+static int gsm48_cc_rx_userinfo(struct gsm_trans *trans, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);
+ struct tlv_parsed tp;
+ struct gsm_mncc user;
+
+ memset(&user, 0, sizeof(struct gsm_mncc));
+ user.callref = trans->callref;
+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, GSM48_IE_USER_USER, 0);
+ /* user-user */
+ if (TLVP_PRESENT(&tp, GSM48_IE_USER_USER)) {
+ user.fields |= MNCC_F_USERUSER;
+ gsm48_decode_useruser(&user.useruser,
+ TLVP_VAL(&tp, GSM48_IE_USER_USER)-1);
+ }
+ /* more data */
+ if (TLVP_PRESENT(&tp, GSM48_IE_MORE_DATA))
+ user.more = 1;
+
+ return mncc_recvmsg(trans->subscr->net, trans, MNCC_USERINFO_IND, &user);
+}
+
+static int _gsm48_lchan_modify(struct gsm_trans *trans, void *arg)
+{
+ struct gsm_mncc *mode = arg;
+
+ return gsm0808_assign_req(trans->conn, mode->lchan_mode, 1);
+}
+
+static struct downstate {
+ u_int32_t states;
+ int type;
+ int (*rout) (struct gsm_trans *trans, void *arg);
+} downstatelist[] = {
+ /* mobile originating call establishment */
+ {SBIT(GSM_CSTATE_INITIATED), /* 5.2.1.2 */
+ MNCC_CALL_PROC_REQ, gsm48_cc_tx_call_proc},
+ {SBIT(GSM_CSTATE_INITIATED) | SBIT(GSM_CSTATE_MO_CALL_PROC), /* 5.2.1.2 | 5.2.1.5 */
+ MNCC_ALERT_REQ, gsm48_cc_tx_alerting},
+ {SBIT(GSM_CSTATE_INITIATED) | SBIT(GSM_CSTATE_MO_CALL_PROC) | SBIT(GSM_CSTATE_CALL_DELIVERED), /* 5.2.1.2 | 5.2.1.6 | 5.2.1.6 */
+ MNCC_SETUP_RSP, gsm48_cc_tx_connect},
+ {SBIT(GSM_CSTATE_MO_CALL_PROC), /* 5.2.1.4.2 */
+ MNCC_PROGRESS_REQ, gsm48_cc_tx_progress},
+ /* mobile terminating call establishment */
+ {SBIT(GSM_CSTATE_NULL), /* 5.2.2.1 */
+ MNCC_SETUP_REQ, gsm48_cc_tx_setup},
+ {SBIT(GSM_CSTATE_CONNECT_REQUEST),
+ MNCC_SETUP_COMPL_REQ, gsm48_cc_tx_connect_ack},
+ /* signalling during call */
+ {SBIT(GSM_CSTATE_ACTIVE),
+ MNCC_NOTIFY_REQ, gsm48_cc_tx_notify},
+ {ALL_STATES - SBIT(GSM_CSTATE_NULL) - SBIT(GSM_CSTATE_RELEASE_REQ),
+ MNCC_FACILITY_REQ, gsm48_cc_tx_facility},
+ {ALL_STATES,
+ MNCC_START_DTMF_RSP, gsm48_cc_tx_start_dtmf_ack},
+ {ALL_STATES,
+ MNCC_START_DTMF_REJ, gsm48_cc_tx_start_dtmf_rej},
+ {ALL_STATES,
+ MNCC_STOP_DTMF_RSP, gsm48_cc_tx_stop_dtmf_ack},
+ {SBIT(GSM_CSTATE_ACTIVE),
+ MNCC_HOLD_CNF, gsm48_cc_tx_hold_ack},
+ {SBIT(GSM_CSTATE_ACTIVE),
+ MNCC_HOLD_REJ, gsm48_cc_tx_hold_rej},
+ {SBIT(GSM_CSTATE_ACTIVE),
+ MNCC_RETRIEVE_CNF, gsm48_cc_tx_retrieve_ack},
+ {SBIT(GSM_CSTATE_ACTIVE),
+ MNCC_RETRIEVE_REJ, gsm48_cc_tx_retrieve_rej},
+ {SBIT(GSM_CSTATE_ACTIVE),
+ MNCC_MODIFY_REQ, gsm48_cc_tx_modify},
+ {SBIT(GSM_CSTATE_MO_ORIG_MODIFY),
+ MNCC_MODIFY_RSP, gsm48_cc_tx_modify_complete},
+ {SBIT(GSM_CSTATE_MO_ORIG_MODIFY),
+ MNCC_MODIFY_REJ, gsm48_cc_tx_modify_reject},
+ {SBIT(GSM_CSTATE_ACTIVE),
+ MNCC_USERINFO_REQ, gsm48_cc_tx_userinfo},
+ /* clearing */
+ {SBIT(GSM_CSTATE_INITIATED),
+ MNCC_REJ_REQ, gsm48_cc_tx_release_compl},
+ {ALL_STATES - SBIT(GSM_CSTATE_NULL) - SBIT(GSM_CSTATE_DISCONNECT_IND) - SBIT(GSM_CSTATE_RELEASE_REQ) - SBIT(GSM_CSTATE_DISCONNECT_REQ), /* 5.4.4 */
+ MNCC_DISC_REQ, gsm48_cc_tx_disconnect},
+ {ALL_STATES - SBIT(GSM_CSTATE_NULL) - SBIT(GSM_CSTATE_RELEASE_REQ), /* 5.4.3.2 */
+ MNCC_REL_REQ, gsm48_cc_tx_release},
+ /* special */
+ {ALL_STATES,
+ MNCC_LCHAN_MODIFY, _gsm48_lchan_modify},
+};
+
+#define DOWNSLLEN \
+ (sizeof(downstatelist) / sizeof(struct downstate))
+
+
+int mncc_tx_to_cc(struct gsm_network *net, int msg_type, void *arg)
+{
+ int i, rc = 0;
+ struct gsm_trans *trans = NULL, *transt;
+ struct gsm_subscriber_connection *conn = NULL;
+ struct gsm_bts *bts = NULL;
+ struct gsm_mncc *data = arg, rel;
+
+ DEBUGP(DMNCC, "receive message %s\n", get_mncc_name(msg_type));
+
+ /* handle special messages */
+ switch(msg_type) {
+ case MNCC_BRIDGE:
+ return tch_bridge(net, arg);
+ case MNCC_FRAME_DROP:
+ return tch_recv_mncc(net, data->callref, 0);
+ case MNCC_FRAME_RECV:
+ return tch_recv_mncc(net, data->callref, 1);
+ case GSM_TCHF_FRAME:
+ /* Find callref */
+ trans = trans_find_by_callref(net, data->callref);
+ if (!trans) {
+ LOGP(DMNCC, LOGL_ERROR, "TCH frame for non-existing trans\n");
+ return -EIO;
+ }
+ if (!trans->conn) {
+ LOGP(DMNCC, LOGL_NOTICE, "TCH frame for trans without conn\n");
+ return 0;
+ }
+ if (trans->conn->lchan->type != GSM_LCHAN_TCH_F) {
+ /* This should be LOGL_ERROR or NOTICE, but
+ * unfortuantely it happens for a couple of frames at
+ * the beginning of every RTP connection */
+ LOGP(DMNCC, LOGL_DEBUG, "TCH frame for lchan != TCH_F\n");
+ return 0;
+ }
+ bts = trans->conn->lchan->ts->trx->bts;
+ switch (bts->type) {
+ case GSM_BTS_TYPE_NANOBTS:
+ if (!trans->conn->lchan->abis_ip.rtp_socket) {
+ DEBUGP(DMNCC, "TCH frame to lchan without RTP connection\n");
+ return 0;
+ }
+ return rtp_send_frame(trans->conn->lchan->abis_ip.rtp_socket, arg);
+ case GSM_BTS_TYPE_BS11:
+ return trau_send_frame(trans->conn->lchan, arg);
+ default:
+ DEBUGP(DCC, "Unknown BTS type %u\n", bts->type);
+ }
+ return -EINVAL;
+ }
+
+ memset(&rel, 0, sizeof(struct gsm_mncc));
+ rel.callref = data->callref;
+
+ /* Find callref */
+ trans = trans_find_by_callref(net, data->callref);
+
+ /* Callref unknown */
+ if (!trans) {
+ struct gsm_subscriber *subscr;
+
+ if (msg_type != MNCC_SETUP_REQ) {
+ DEBUGP(DCC, "(bts - trx - ts - ti -- sub %s) "
+ "Received '%s' from MNCC with "
+ "unknown callref %d\n", data->called.number,
+ get_mncc_name(msg_type), data->callref);
+ /* Invalid call reference */
+ return mncc_release_ind(net, NULL, data->callref,
+ GSM48_CAUSE_LOC_PRN_S_LU,
+ GSM48_CC_CAUSE_INVAL_TRANS_ID);
+ }
+ if (!data->called.number[0] && !data->imsi[0]) {
+ DEBUGP(DCC, "(bts - trx - ts - ti) "
+ "Received '%s' from MNCC with "
+ "no number or IMSI\n", get_mncc_name(msg_type));
+ /* Invalid number */
+ return mncc_release_ind(net, NULL, data->callref,
+ GSM48_CAUSE_LOC_PRN_S_LU,
+ GSM48_CC_CAUSE_INV_NR_FORMAT);
+ }
+ /* New transaction due to setup, find subscriber */
+ if (data->called.number[0])
+ subscr = subscr_get_by_extension(net,
+ data->called.number);
+ else
+ subscr = subscr_get_by_imsi(net, data->imsi);
+ /* If subscriber is not found */
+ if (!subscr) {
+ DEBUGP(DCC, "(bts - trx - ts - ti -- sub %s) "
+ "Received '%s' from MNCC with "
+ "unknown subscriber %s\n", data->called.number,
+ get_mncc_name(msg_type), data->called.number);
+ /* Unknown subscriber */
+ return mncc_release_ind(net, NULL, data->callref,
+ GSM48_CAUSE_LOC_PRN_S_LU,
+ GSM48_CC_CAUSE_UNASSIGNED_NR);
+ }
+ /* If subscriber is not "attached" */
+ if (!subscr->lac) {
+ DEBUGP(DCC, "(bts - trx - ts - ti -- sub %s) "
+ "Received '%s' from MNCC with "
+ "detached subscriber %s\n", data->called.number,
+ get_mncc_name(msg_type), data->called.number);
+ subscr_put(subscr);
+ /* Temporarily out of order */
+ return mncc_release_ind(net, NULL, data->callref,
+ GSM48_CAUSE_LOC_PRN_S_LU,
+ GSM48_CC_CAUSE_DEST_OOO);
+ }
+ /* Create transaction */
+ trans = trans_alloc(subscr, GSM48_PDISC_CC, 0xff, data->callref);
+ if (!trans) {
+ DEBUGP(DCC, "No memory for trans.\n");
+ subscr_put(subscr);
+ /* Ressource unavailable */
+ mncc_release_ind(net, NULL, data->callref,
+ GSM48_CAUSE_LOC_PRN_S_LU,
+ GSM48_CC_CAUSE_RESOURCE_UNAVAIL);
+ return -ENOMEM;
+ }
+ /* Find lchan */
+ conn = connection_for_subscr(subscr);
+
+ /* If subscriber has no lchan */
+ if (!conn) {
+ /* find transaction with this subscriber already paging */
+ llist_for_each_entry(transt, &net->trans_list, entry) {
+ /* Transaction of our lchan? */
+ if (transt == trans ||
+ transt->subscr != subscr)
+ continue;
+ DEBUGP(DCC, "(bts - trx - ts - ti -- sub %s) "
+ "Received '%s' from MNCC with "
+ "unallocated channel, paging already "
+ "started for lac %d.\n",
+ data->called.number,
+ get_mncc_name(msg_type), subscr->lac);
+ subscr_put(subscr);
+ trans_free(trans);
+ return 0;
+ }
+ /* store setup informations until paging was successfull */
+ memcpy(&trans->cc.msg, data, sizeof(struct gsm_mncc));
+
+ /* Get a channel */
+ trans->paging_request = talloc_zero(subscr->net, struct gsm_network*);
+ if (!trans->paging_request) {
+ LOGP(DCC, LOGL_ERROR, "Failed to allocate paging token.\n");
+ subscr_put(subscr);
+ trans_free(trans);
+ return 0;
+ }
+
+ *trans->paging_request = subscr->net;
+ subscr_get_channel(subscr, RSL_CHANNEED_TCH_F, setup_trig_pag_evt, trans->paging_request);
+
+ subscr_put(subscr);
+ return 0;
+ }
+ /* Assign lchan */
+ trans->conn = conn;
+ subscr_put(subscr);
+ }
+
+ if (trans->conn)
+ conn = trans->conn;
+
+ /* if paging did not respond yet */
+ if (!conn) {
+ DEBUGP(DCC, "(bts - trx - ts - ti -- sub %s) "
+ "Received '%s' from MNCC in paging state\n",
+ (trans->subscr)?(trans->subscr->extension):"-",
+ get_mncc_name(msg_type));
+ mncc_set_cause(&rel, GSM48_CAUSE_LOC_PRN_S_LU,
+ GSM48_CC_CAUSE_NORM_CALL_CLEAR);
+ if (msg_type == MNCC_REL_REQ)
+ rc = mncc_recvmsg(net, trans, MNCC_REL_CNF, &rel);
+ else
+ rc = mncc_recvmsg(net, trans, MNCC_REL_IND, &rel);
+ trans->callref = 0;
+ trans_free(trans);
+ return rc;
+ }
+
+ DEBUGP(DCC, "(bts %d trx %d ts %d ti %02x sub %s) "
+ "Received '%s' from MNCC in state %d (%s)\n",
+ conn->bts->nr, conn->lchan->ts->trx->nr, conn->lchan->ts->nr,
+ trans->transaction_id,
+ (trans->conn->subscr)?(trans->conn->subscr->extension):"-",
+ get_mncc_name(msg_type), trans->cc.state,
+ gsm48_cc_state_name(trans->cc.state));
+
+ /* Find function for current state and message */
+ for (i = 0; i < DOWNSLLEN; i++)
+ if ((msg_type == downstatelist[i].type)
+ && ((1 << trans->cc.state) & downstatelist[i].states))
+ break;
+ if (i == DOWNSLLEN) {
+ DEBUGP(DCC, "Message unhandled at this state.\n");
+ return 0;
+ }
+
+ rc = downstatelist[i].rout(trans, arg);
+
+ return rc;
+}
+
+
+static struct datastate {
+ u_int32_t states;
+ int type;
+ int (*rout) (struct gsm_trans *trans, struct msgb *msg);
+} datastatelist[] = {
+ /* mobile originating call establishment */
+ {SBIT(GSM_CSTATE_NULL), /* 5.2.1.2 */
+ GSM48_MT_CC_SETUP, gsm48_cc_rx_setup},
+ {SBIT(GSM_CSTATE_NULL), /* 5.2.1.2 */
+ GSM48_MT_CC_EMERG_SETUP, gsm48_cc_rx_setup},
+ {SBIT(GSM_CSTATE_CONNECT_IND), /* 5.2.1.2 */
+ GSM48_MT_CC_CONNECT_ACK, gsm48_cc_rx_connect_ack},
+ /* mobile terminating call establishment */
+ {SBIT(GSM_CSTATE_CALL_PRESENT), /* 5.2.2.3.2 */
+ GSM48_MT_CC_CALL_CONF, gsm48_cc_rx_call_conf},
+ {SBIT(GSM_CSTATE_CALL_PRESENT) | SBIT(GSM_CSTATE_MO_TERM_CALL_CONF), /* ???? | 5.2.2.3.2 */
+ GSM48_MT_CC_ALERTING, gsm48_cc_rx_alerting},
+ {SBIT(GSM_CSTATE_CALL_PRESENT) | SBIT(GSM_CSTATE_MO_TERM_CALL_CONF) | SBIT(GSM_CSTATE_CALL_RECEIVED), /* (5.2.2.6) | 5.2.2.6 | 5.2.2.6 */
+ GSM48_MT_CC_CONNECT, gsm48_cc_rx_connect},
+ /* signalling during call */
+ {ALL_STATES - SBIT(GSM_CSTATE_NULL),
+ GSM48_MT_CC_FACILITY, gsm48_cc_rx_facility},
+ {SBIT(GSM_CSTATE_ACTIVE),
+ GSM48_MT_CC_NOTIFY, gsm48_cc_rx_notify},
+ {ALL_STATES,
+ GSM48_MT_CC_START_DTMF, gsm48_cc_rx_start_dtmf},
+ {ALL_STATES,
+ GSM48_MT_CC_STOP_DTMF, gsm48_cc_rx_stop_dtmf},
+ {ALL_STATES,
+ GSM48_MT_CC_STATUS_ENQ, gsm48_cc_rx_status_enq},
+ {SBIT(GSM_CSTATE_ACTIVE),
+ GSM48_MT_CC_HOLD, gsm48_cc_rx_hold},
+ {SBIT(GSM_CSTATE_ACTIVE),
+ GSM48_MT_CC_RETR, gsm48_cc_rx_retrieve},
+ {SBIT(GSM_CSTATE_ACTIVE),
+ GSM48_MT_CC_MODIFY, gsm48_cc_rx_modify},
+ {SBIT(GSM_CSTATE_MO_TERM_MODIFY),
+ GSM48_MT_CC_MODIFY_COMPL, gsm48_cc_rx_modify_complete},
+ {SBIT(GSM_CSTATE_MO_TERM_MODIFY),
+ GSM48_MT_CC_MODIFY_REJECT, gsm48_cc_rx_modify_reject},
+ {SBIT(GSM_CSTATE_ACTIVE),
+ GSM48_MT_CC_USER_INFO, gsm48_cc_rx_userinfo},
+ /* clearing */
+ {ALL_STATES - SBIT(GSM_CSTATE_NULL) - SBIT(GSM_CSTATE_RELEASE_REQ), /* 5.4.3.2 */
+ GSM48_MT_CC_DISCONNECT, gsm48_cc_rx_disconnect},
+ {ALL_STATES - SBIT(GSM_CSTATE_NULL), /* 5.4.4.1.2.2 */
+ GSM48_MT_CC_RELEASE, gsm48_cc_rx_release},
+ {ALL_STATES, /* 5.4.3.4 */
+ GSM48_MT_CC_RELEASE_COMPL, gsm48_cc_rx_release_compl},
+};
+
+#define DATASLLEN \
+ (sizeof(datastatelist) / sizeof(struct datastate))
+
+static int gsm0408_rcv_cc(struct gsm_subscriber_connection *conn, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ u_int8_t msg_type = gh->msg_type & 0xbf;
+ u_int8_t transaction_id = ((gh->proto_discr & 0xf0) ^ 0x80) >> 4; /* flip */
+ struct gsm_trans *trans = NULL;
+ int i, rc = 0;
+
+ if (msg_type & 0x80) {
+ DEBUGP(DCC, "MSG 0x%2x not defined for PD error\n", msg_type);
+ return -EINVAL;
+ }
+
+ /* Find transaction */
+ trans = trans_find_by_id(conn->subscr, GSM48_PDISC_CC, transaction_id);
+
+ DEBUGP(DCC, "(bts %d trx %d ts %d ti %x sub %s) "
+ "Received '%s' from MS in state %d (%s)\n",
+ conn->bts->nr, conn->lchan->ts->trx->nr, conn->lchan->ts->nr,
+ transaction_id, (conn->subscr)?(conn->subscr->extension):"-",
+ gsm48_cc_msg_name(msg_type), trans?(trans->cc.state):0,
+ gsm48_cc_state_name(trans?(trans->cc.state):0));
+
+ /* Create transaction */
+ if (!trans) {
+ DEBUGP(DCC, "Unknown transaction ID %x, "
+ "creating new trans.\n", transaction_id);
+ /* Create transaction */
+ trans = trans_alloc(conn->subscr, GSM48_PDISC_CC,
+ transaction_id, new_callref++);
+ if (!trans) {
+ DEBUGP(DCC, "No memory for trans.\n");
+ rc = gsm48_tx_simple(conn,
+ GSM48_PDISC_CC | (transaction_id << 4),
+ GSM48_MT_CC_RELEASE_COMPL);
+ return -ENOMEM;
+ }
+ /* Assign transaction */
+ trans->conn = conn;
+ }
+
+ /* find function for current state and message */
+ for (i = 0; i < DATASLLEN; i++)
+ if ((msg_type == datastatelist[i].type)
+ && ((1 << trans->cc.state) & datastatelist[i].states))
+ break;
+ if (i == DATASLLEN) {
+ DEBUGP(DCC, "Message unhandled at this state.\n");
+ return 0;
+ }
+
+ rc = datastatelist[i].rout(trans, msg);
+
+ return rc;
+}
+
+/* Create a dummy to wait five seconds */
+static void release_anchor(struct gsm_subscriber_connection *conn)
+{
+ if (!conn->anch_operation)
+ return;
+
+ bsc_del_timer(&conn->anch_operation->timeout);
+ talloc_free(conn->anch_operation);
+ conn->anch_operation = NULL;
+}
+
+static void anchor_timeout(void *_data)
+{
+ struct gsm_subscriber_connection *con = _data;
+
+ release_anchor(con);
+ msc_release_connection(con);
+}
+
+int gsm0408_new_conn(struct gsm_subscriber_connection *conn)
+{
+ conn->anch_operation = talloc_zero(conn, struct gsm_anchor_operation);
+ if (!conn->anch_operation)
+ return -1;
+
+ conn->anch_operation->timeout.data = conn;
+ conn->anch_operation->timeout.cb = anchor_timeout;
+ bsc_schedule_timer(&conn->anch_operation->timeout, 5, 0);
+ return 0;
+}
+
+/* here we get data from the BSC level... */
+int gsm0408_dispatch(struct gsm_subscriber_connection *conn, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ u_int8_t pdisc = gh->proto_discr & 0x0f;
+ int rc = 0;
+
+ if (silent_call_reroute(conn, msg))
+ return silent_call_rx(conn, msg);
+
+ switch (pdisc) {
+ case GSM48_PDISC_CC:
+ release_anchor(conn);
+ rc = gsm0408_rcv_cc(conn, msg);
+ break;
+ case GSM48_PDISC_MM:
+ rc = gsm0408_rcv_mm(conn, msg);
+ break;
+ case GSM48_PDISC_RR:
+ rc = gsm0408_rcv_rr(conn, msg);
+ break;
+ case GSM48_PDISC_SMS:
+ release_anchor(conn);
+ rc = gsm0411_rcv_sms(conn, msg);
+ break;
+ case GSM48_PDISC_MM_GPRS:
+ case GSM48_PDISC_SM_GPRS:
+ LOGP(DRLL, LOGL_NOTICE, "Unimplemented "
+ "GSM 04.08 discriminator 0x%02x\n", pdisc);
+ break;
+ case GSM48_PDISC_NC_SS:
+ release_anchor(conn);
+ rc = handle_rcv_ussd(conn, msg);
+ break;
+ default:
+ LOGP(DRLL, LOGL_NOTICE, "Unknown "
+ "GSM 04.08 discriminator 0x%02x\n", pdisc);
+ break;
+ }
+
+ return rc;
+}
+
+/*
+ * This will be ran by the linker when loading the DSO. We use it to
+ * do system initialization, e.g. registration of signal handlers.
+ */
+static __attribute__((constructor)) void on_dso_load_0408(void)
+{
+ register_signal_handler(SS_HO, handle_ho_signal, NULL);
+ register_signal_handler(SS_ABISIP, handle_abisip_signal, NULL);
+}
diff --git a/src/libmsc/gsm_04_11.c b/src/libmsc/gsm_04_11.c
new file mode 100644
index 00000000..812e758c
--- /dev/null
+++ b/src/libmsc/gsm_04_11.c
@@ -0,0 +1,1240 @@
+/* Point-to-Point (PP) Short Message Service (SMS)
+ * Support on Mobile Radio Interface
+ * 3GPP TS 04.11 version 7.1.0 Release 1998 / ETSI TS 100 942 V7.1.0 */
+
+/* (C) 2008 by Daniel Willmann <daniel@totalueberwachung.de>
+ * (C) 2009 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2010 by Holger Hans Peter Freyther <zecke@selfish.org>
+ * (C) 2010 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <time.h>
+#include <netinet/in.h>
+
+#include <osmocore/msgb.h>
+#include <osmocore/tlv.h>
+#include <openbsc/debug.h>
+#include <openbsc/gsm_data.h>
+#include <openbsc/db.h>
+#include <openbsc/gsm_subscriber.h>
+#include <openbsc/gsm_04_11.h>
+#include <openbsc/gsm_04_08.h>
+#include <osmocore/gsm_utils.h>
+#include <openbsc/abis_rsl.h>
+#include <openbsc/signal.h>
+#include <openbsc/db.h>
+#include <osmocore/talloc.h>
+#include <openbsc/transaction.h>
+#include <openbsc/paging.h>
+#include <openbsc/bsc_rll.h>
+#include <openbsc/chan_alloc.h>
+#include <openbsc/bsc_api.h>
+
+#define GSM411_ALLOC_SIZE 1024
+#define GSM411_ALLOC_HEADROOM 128
+
+void *tall_gsms_ctx;
+static u_int32_t new_callref = 0x40000001;
+
+static const struct value_string cp_cause_strs[] = {
+ { GSM411_CP_CAUSE_NET_FAIL, "Network Failure" },
+ { GSM411_CP_CAUSE_CONGESTION, "Congestion" },
+ { GSM411_CP_CAUSE_INV_TRANS_ID, "Invalid Transaction ID" },
+ { GSM411_CP_CAUSE_SEMANT_INC_MSG, "Semantically Incorrect Message" },
+ { GSM411_CP_CAUSE_INV_MAND_INF, "Invalid Mandatory Information" },
+ { GSM411_CP_CAUSE_MSGTYPE_NOTEXIST, "Message Type doesn't exist" },
+ { GSM411_CP_CAUSE_MSG_INCOMP_STATE,
+ "Message incompatible with protocol state" },
+ { GSM411_CP_CAUSE_IE_NOTEXIST, "IE does not exist" },
+ { GSM411_CP_CAUSE_PROTOCOL_ERR, "Protocol Error" },
+ { 0, 0 }
+};
+
+static const struct value_string rp_cause_strs[] = {
+ { GSM411_RP_CAUSE_MO_NUM_UNASSIGNED, "(MO) Number not assigned" },
+ { GSM411_RP_CAUSE_MO_OP_DET_BARR, "(MO) Operator determined barring" },
+ { GSM411_RP_CAUSE_MO_CALL_BARRED, "(MO) Call barred" },
+ { GSM411_RP_CAUSE_MO_SMS_REJECTED, "(MO) SMS rejected" },
+ { GSM411_RP_CAUSE_MO_DEST_OUT_OF_ORDER, "(MO) Destination out of order" },
+ { GSM411_RP_CAUSE_MO_UNIDENTIFIED_SUBSCR, "(MO) Unidentified subscriber" },
+ { GSM411_RP_CAUSE_MO_FACILITY_REJ, "(MO) Facility reject" },
+ { GSM411_RP_CAUSE_MO_UNKNOWN_SUBSCR, "(MO) Unknown subscriber" },
+ { GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER, "(MO) Network out of order" },
+ { GSM411_RP_CAUSE_MO_TEMP_FAIL, "(MO) Temporary failure" },
+ { GSM411_RP_CAUSE_MO_CONGESTION, "(MO) Congestion" },
+ { GSM411_RP_CAUSE_MO_RES_UNAVAIL, "(MO) Resource unavailable" },
+ { GSM411_RP_CAUSE_MO_REQ_FAC_NOTSUBSCR, "(MO) Requested facility not subscribed" },
+ { GSM411_RP_CAUSE_MO_REQ_FAC_NOTIMPL, "(MO) Requested facility not implemented" },
+ { GSM411_RP_CAUSE_MO_INTERWORKING, "(MO) Interworking" },
+ /* valid only for MT */
+ { GSM411_RP_CAUSE_MT_MEM_EXCEEDED, "(MT) Memory Exceeded" },
+ /* valid for both directions */
+ { GSM411_RP_CAUSE_INV_TRANS_REF, "Invalid Transaction Reference" },
+ { GSM411_RP_CAUSE_SEMANT_INC_MSG, "Semantically Incorrect Message" },
+ { GSM411_RP_CAUSE_INV_MAND_INF, "Invalid Mandatory Information" },
+ { GSM411_RP_CAUSE_MSGTYPE_NOTEXIST, "Message Type non-existant" },
+ { GSM411_RP_CAUSE_MSG_INCOMP_STATE, "Message incompatible with protocol state" },
+ { GSM411_RP_CAUSE_IE_NOTEXIST, "Information Element not existing" },
+ { GSM411_RP_CAUSE_PROTOCOL_ERR, "Protocol Error" },
+ { 0, NULL }
+};
+
+
+struct gsm_sms *sms_alloc(void)
+{
+ return talloc_zero(tall_gsms_ctx, struct gsm_sms);
+}
+
+void sms_free(struct gsm_sms *sms)
+{
+ /* drop references to subscriber structure */
+ if (sms->sender)
+ subscr_put(sms->sender);
+ if (sms->receiver)
+ subscr_put(sms->receiver);
+
+ talloc_free(sms);
+}
+
+struct gsm_sms *sms_from_text(struct gsm_subscriber *receiver, int dcs, const char *text)
+{
+ struct gsm_sms *sms = sms_alloc();
+
+ if (!sms)
+ return NULL;
+
+ sms->receiver = subscr_get(receiver);
+ strncpy(sms->text, text, sizeof(sms->text)-1);
+
+ /* FIXME: don't use ID 1 static */
+ sms->sender = subscr_get_by_id(receiver->net, 1);
+ sms->reply_path_req = 0;
+ sms->status_rep_req = 0;
+ sms->ud_hdr_ind = 0;
+ sms->protocol_id = 0; /* implicit */
+ sms->data_coding_scheme = dcs;
+ strncpy(sms->dest_addr, receiver->extension, sizeof(sms->dest_addr)-1);
+ /* Generate user_data */
+ sms->user_data_len = gsm_7bit_encode(sms->user_data, sms->text);
+
+ return sms;
+}
+
+
+static void send_signal(int sig_no,
+ struct gsm_trans *trans,
+ struct gsm_sms *sms,
+ int paging_result)
+{
+ struct sms_signal_data sig;
+ sig.trans = trans;
+ sig.sms = sms;
+ sig.paging_result = paging_result;
+ dispatch_signal(SS_SMS, sig_no, &sig);
+}
+
+/*
+ * This should be called whenever all SMS to a given subscriber
+ * on a given connection has been sent. This will inform the higher
+ * layers that a channel can be given up.
+ */
+static void gsm411_release_conn(struct gsm_subscriber_connection *conn)
+{
+ if (!conn)
+ return;
+
+ subscr_put_channel(conn->subscr);
+}
+
+struct msgb *gsm411_msgb_alloc(void)
+{
+ return msgb_alloc_headroom(GSM411_ALLOC_SIZE, GSM411_ALLOC_HEADROOM,
+ "GSM 04.11");
+}
+
+static int gsm411_sendmsg(struct gsm_subscriber_connection *conn, struct msgb *msg, u_int8_t link_id)
+{
+ DEBUGP(DSMS, "GSM4.11 TX %s\n", hexdump(msg->data, msg->len));
+ msg->l3h = msg->data;
+ return gsm0808_submit_dtap(conn, msg, link_id, 1);
+}
+
+/* SMC TC1* is expired */
+static void cp_timer_expired(void *data)
+{
+ struct gsm_trans *trans = data;
+
+ DEBUGP(DSMS, "SMC Timer TC1* is expired, calling trans_free()\n");
+ /* FIXME: we need to re-transmit the last CP-DATA 1..3 times */
+ trans_free(trans);
+}
+
+/* Prefix msg with a 04.08/04.11 CP header */
+static int gsm411_cp_sendmsg(struct msgb *msg, struct gsm_trans *trans,
+ u_int8_t msg_type)
+{
+ struct gsm48_hdr *gh;
+
+ gh = (struct gsm48_hdr *) msgb_push(msg, sizeof(*gh));
+ /* Outgoing needs the highest bit set */
+ gh->proto_discr = trans->protocol | (trans->transaction_id<<4);
+ gh->msg_type = msg_type;
+
+ /* mobile originating */
+ switch (gh->msg_type) {
+ case GSM411_MT_CP_DATA:
+ /* 5.2.3.1.2: enter MO-wait for CP-ack */
+ /* 5.2.3.2.3: enter MT-wait for CP-ACK */
+ trans->sms.cp_state = GSM411_CPS_WAIT_CP_ACK;
+ trans->sms.cp_timer.data = trans;
+ trans->sms.cp_timer.cb = cp_timer_expired;
+ /* 5.3.2.1: Set Timer TC1A */
+ bsc_schedule_timer(&trans->sms.cp_timer, GSM411_TMR_TC1A);
+ DEBUGP(DSMS, "TX: CP-DATA ");
+ break;
+ case GSM411_MT_CP_ACK:
+ DEBUGP(DSMS, "TX: CP-ACK ");
+ break;
+ case GSM411_MT_CP_ERROR:
+ DEBUGP(DSMS, "TX: CP-ERROR ");
+ break;
+ }
+
+ DEBUGPC(DSMS, "trans=%x\n", trans->transaction_id);
+
+ return gsm411_sendmsg(trans->conn, msg, trans->sms.link_id);
+}
+
+/* Prefix msg with a RP-DATA header and send as CP-DATA */
+static int gsm411_rp_sendmsg(struct msgb *msg, struct gsm_trans *trans,
+ u_int8_t rp_msg_type, u_int8_t rp_msg_ref)
+{
+ struct gsm411_rp_hdr *rp;
+ u_int8_t len = msg->len;
+
+ /* GSM 04.11 RP-DATA header */
+ rp = (struct gsm411_rp_hdr *)msgb_push(msg, sizeof(*rp));
+ rp->len = len + 2;
+ rp->msg_type = rp_msg_type;
+ rp->msg_ref = rp_msg_ref; /* FIXME: Choose randomly */
+
+ return gsm411_cp_sendmsg(msg, trans, GSM411_MT_CP_DATA);
+}
+
+/* Turn int into semi-octet representation: 98 => 0x89 */
+static u_int8_t bcdify(u_int8_t value)
+{
+ u_int8_t ret;
+
+ ret = value / 10;
+ ret |= (value % 10) << 4;
+
+ return ret;
+}
+
+/* Turn semi-octet representation into int: 0x89 => 98 */
+static u_int8_t unbcdify(u_int8_t value)
+{
+ u_int8_t ret;
+
+ if ((value & 0x0F) > 9 || (value >> 4) > 9)
+ LOGP(DSMS, LOGL_ERROR,
+ "unbcdify got too big nibble: 0x%02X\n", value);
+
+ ret = (value&0x0F)*10;
+ ret += value>>4;
+
+ return ret;
+}
+
+/* Generate 03.40 TP-SCTS */
+static void gsm340_gen_scts(u_int8_t *scts, time_t time)
+{
+ struct tm *tm = localtime(&time);
+
+ *scts++ = bcdify(tm->tm_year % 100);
+ *scts++ = bcdify(tm->tm_mon + 1);
+ *scts++ = bcdify(tm->tm_mday);
+ *scts++ = bcdify(tm->tm_hour);
+ *scts++ = bcdify(tm->tm_min);
+ *scts++ = bcdify(tm->tm_sec);
+ *scts++ = bcdify(tm->tm_gmtoff/(60*15));
+}
+
+/* Decode 03.40 TP-SCTS (into utc/gmt timestamp) */
+static time_t gsm340_scts(u_int8_t *scts)
+{
+ struct tm tm;
+
+ u_int8_t yr = unbcdify(*scts++);
+
+ if (yr <= 80)
+ tm.tm_year = 100 + yr;
+ else
+ tm.tm_year = yr;
+ tm.tm_mon = unbcdify(*scts++) - 1;
+ tm.tm_mday = unbcdify(*scts++);
+ tm.tm_hour = unbcdify(*scts++);
+ tm.tm_min = unbcdify(*scts++);
+ tm.tm_sec = unbcdify(*scts++);
+ /* according to gsm 03.40 time zone is
+ "expressed in quarters of an hour" */
+ tm.tm_gmtoff = unbcdify(*scts++) * 15*60;
+
+ return mktime(&tm);
+}
+
+/* Return the default validity period in minutes */
+static unsigned long gsm340_vp_default(void)
+{
+ unsigned long minutes;
+ /* Default validity: two days */
+ minutes = 24 * 60 * 2;
+ return minutes;
+}
+
+/* Decode validity period format 'relative' */
+static unsigned long gsm340_vp_relative(u_int8_t *sms_vp)
+{
+ /* Chapter 9.2.3.12.1 */
+ u_int8_t vp;
+ unsigned long minutes;
+
+ vp = *(sms_vp);
+ if (vp <= 143)
+ minutes = vp + 1 * 5;
+ else if (vp <= 167)
+ minutes = 12*60 + (vp-143) * 30;
+ else if (vp <= 196)
+ minutes = vp-166 * 60 * 24;
+ else
+ minutes = vp-192 * 60 * 24 * 7;
+ return minutes;
+}
+
+/* Decode validity period format 'absolute' */
+static unsigned long gsm340_vp_absolute(u_int8_t *sms_vp)
+{
+ /* Chapter 9.2.3.12.2 */
+ time_t expires, now;
+ unsigned long minutes;
+
+ expires = gsm340_scts(sms_vp);
+ now = time(NULL);
+ if (expires <= now)
+ minutes = 0;
+ else
+ minutes = (expires-now)/60;
+ return minutes;
+}
+
+/* Decode validity period format 'relative in integer representation' */
+static unsigned long gsm340_vp_relative_integer(u_int8_t *sms_vp)
+{
+ u_int8_t vp;
+ unsigned long minutes;
+ vp = *(sms_vp);
+ if (vp == 0) {
+ LOGP(DSMS, LOGL_ERROR,
+ "reserved relative_integer validity period\n");
+ return gsm340_vp_default();
+ }
+ minutes = vp/60;
+ return minutes;
+}
+
+/* Decode validity period format 'relative in semi-octet representation' */
+static unsigned long gsm340_vp_relative_semioctet(u_int8_t *sms_vp)
+{
+ unsigned long minutes;
+ minutes = unbcdify(*sms_vp++)*60; /* hours */
+ minutes += unbcdify(*sms_vp++); /* minutes */
+ minutes += unbcdify(*sms_vp++)/60; /* seconds */
+ return minutes;
+}
+
+/* decode validity period. return minutes */
+static unsigned long gsm340_validity_period(u_int8_t sms_vpf, u_int8_t *sms_vp)
+{
+ u_int8_t fi; /* functionality indicator */
+
+ switch (sms_vpf) {
+ case GSM340_TP_VPF_RELATIVE:
+ return gsm340_vp_relative(sms_vp);
+ case GSM340_TP_VPF_ABSOLUTE:
+ return gsm340_vp_absolute(sms_vp);
+ case GSM340_TP_VPF_ENHANCED:
+ /* Chapter 9.2.3.12.3 */
+ fi = *sms_vp++;
+ /* ignore additional fi */
+ if (fi & (1<<7)) sms_vp++;
+ /* read validity period format */
+ switch (fi & 0x7) {
+ case 0x0:
+ return gsm340_vp_default(); /* no vpf specified */
+ case 0x1:
+ return gsm340_vp_relative(sms_vp);
+ case 0x2:
+ return gsm340_vp_relative_integer(sms_vp);
+ case 0x3:
+ return gsm340_vp_relative_semioctet(sms_vp);
+ default:
+ /* The GSM spec says that the SC should reject any
+ unsupported and/or undefined values. FIXME */
+ LOGP(DSMS, LOGL_ERROR,
+ "Reserved enhanced validity period format\n");
+ return gsm340_vp_default();
+ }
+ case GSM340_TP_VPF_NONE:
+ default:
+ return gsm340_vp_default();
+ }
+}
+
+/* determine coding alphabet dependent on GSM 03.38 Section 4 DCS */
+enum sms_alphabet gsm338_get_sms_alphabet(u_int8_t dcs)
+{
+ u_int8_t cgbits = dcs >> 4;
+ enum sms_alphabet alpha = DCS_NONE;
+
+ if ((cgbits & 0xc) == 0) {
+ if (cgbits & 2) {
+ LOGP(DSMS, LOGL_NOTICE,
+ "Compressed SMS not supported yet\n");
+ return 0xffffffff;
+ }
+
+ switch ((dcs >> 2)&0x03) {
+ case 0:
+ alpha = DCS_7BIT_DEFAULT;
+ break;
+ case 1:
+ alpha = DCS_8BIT_DATA;
+ break;
+ case 2:
+ alpha = DCS_UCS2;
+ break;
+ }
+ } else if (cgbits == 0xc || cgbits == 0xd)
+ alpha = DCS_7BIT_DEFAULT;
+ else if (cgbits == 0xe)
+ alpha = DCS_UCS2;
+ else if (cgbits == 0xf) {
+ if (dcs & 4)
+ alpha = DCS_8BIT_DATA;
+ else
+ alpha = DCS_7BIT_DEFAULT;
+ }
+
+ return alpha;
+}
+
+static int gsm340_rx_sms_submit(struct msgb *msg, struct gsm_sms *gsms)
+{
+ if (db_sms_store(gsms) != 0) {
+ LOGP(DSMS, LOGL_ERROR, "Failed to store SMS in Database\n");
+ return GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER;
+ }
+ /* dispatch a signal to tell higher level about it */
+ send_signal(S_SMS_SUBMITTED, NULL, gsms, 0);
+
+ return 0;
+}
+
+/* generate a TPDU address field compliant with 03.40 sec. 9.1.2.5 */
+static int gsm340_gen_oa(u_int8_t *oa, unsigned int oa_len,
+ struct gsm_subscriber *subscr)
+{
+ int len_in_bytes;
+
+ oa[1] = 0xb9; /* networks-specific number, private numbering plan */
+
+ len_in_bytes = gsm48_encode_bcd_number(oa, oa_len, 1, subscr->extension);
+
+ /* GSM 03.40 tells us the length is in 'useful semi-octets' */
+ oa[0] = strlen(subscr->extension) & 0xff;
+
+ return len_in_bytes;
+}
+
+/* generate a msgb containing a TPDU derived from struct gsm_sms,
+ * returns total size of TPDU */
+static int gsm340_gen_tpdu(struct msgb *msg, struct gsm_sms *sms)
+{
+ u_int8_t *smsp;
+ u_int8_t oa[12]; /* max len per 03.40 */
+ u_int8_t oa_len = 0;
+ u_int8_t octet_len;
+ unsigned int old_msg_len = msg->len;
+
+ /* generate first octet with masked bits */
+ smsp = msgb_put(msg, 1);
+ /* TP-MTI (message type indicator) */
+ *smsp = GSM340_SMS_DELIVER_SC2MS;
+ /* TP-MMS (more messages to send) */
+ if (0 /* FIXME */)
+ *smsp |= 0x04;
+ /* TP-SRI(deliver)/SRR(submit) */
+ if (sms->status_rep_req)
+ *smsp |= 0x20;
+ /* TP-UDHI (indicating TP-UD contains a header) */
+ if (sms->ud_hdr_ind)
+ *smsp |= 0x40;
+
+ /* generate originator address */
+ oa_len = gsm340_gen_oa(oa, sizeof(oa), sms->sender);
+ smsp = msgb_put(msg, oa_len);
+ memcpy(smsp, oa, oa_len);
+
+ /* generate TP-PID */
+ smsp = msgb_put(msg, 1);
+ *smsp = sms->protocol_id;
+
+ /* generate TP-DCS */
+ smsp = msgb_put(msg, 1);
+ *smsp = sms->data_coding_scheme;
+
+ /* generate TP-SCTS */
+ smsp = msgb_put(msg, 7);
+ gsm340_gen_scts(smsp, time(NULL));
+
+ /* generate TP-UDL */
+ smsp = msgb_put(msg, 1);
+ *smsp = sms->user_data_len;
+
+ /* generate TP-UD */
+ switch (gsm338_get_sms_alphabet(sms->data_coding_scheme)) {
+ case DCS_7BIT_DEFAULT:
+ octet_len = sms->user_data_len*7/8;
+ if (sms->user_data_len*7%8 != 0)
+ octet_len++;
+ /* Warning, user_data_len indicates the amount of septets
+ * (characters), we need amount of octets occupied */
+ smsp = msgb_put(msg, octet_len);
+ memcpy(smsp, sms->user_data, octet_len);
+ break;
+ case DCS_UCS2:
+ case DCS_8BIT_DATA:
+ smsp = msgb_put(msg, sms->user_data_len);
+ memcpy(smsp, sms->user_data, sms->user_data_len);
+ break;
+ default:
+ LOGP(DSMS, LOGL_NOTICE, "Unhandled Data Coding Scheme: 0x%02X\n",
+ sms->data_coding_scheme);
+ break;
+ }
+
+ return msg->len - old_msg_len;
+}
+
+/* process an incoming TPDU (called from RP-DATA)
+ * return value > 0: RP CAUSE for ERROR; < 0: silent error; 0 = success */
+static int gsm340_rx_tpdu(struct gsm_subscriber_connection *conn, struct msgb *msg)
+{
+ u_int8_t *smsp = msgb_sms(msg);
+ struct gsm_sms *gsms;
+ u_int8_t sms_mti, sms_mms, sms_vpf, sms_alphabet, sms_rp;
+ u_int8_t *sms_vp;
+ u_int8_t da_len_bytes;
+ u_int8_t address_lv[12]; /* according to 03.40 / 9.1.2.5 */
+ int rc = 0;
+
+ counter_inc(conn->bts->network->stats.sms.submitted);
+
+ gsms = sms_alloc();
+ if (!gsms)
+ return GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER;
+
+ /* invert those fields where 0 means active/present */
+ sms_mti = *smsp & 0x03;
+ sms_mms = !!(*smsp & 0x04);
+ sms_vpf = (*smsp & 0x18) >> 3;
+ gsms->status_rep_req = (*smsp & 0x20);
+ gsms->ud_hdr_ind = (*smsp & 0x40);
+ sms_rp = (*smsp & 0x80);
+
+ smsp++;
+ gsms->msg_ref = *smsp++;
+
+ /* length in bytes of the destination address */
+ da_len_bytes = 2 + *smsp/2 + *smsp%2;
+ if (da_len_bytes > 12) {
+ LOGP(DSMS, LOGL_ERROR, "Destination Address > 12 bytes ?!?\n");
+ rc = GSM411_RP_CAUSE_SEMANT_INC_MSG;
+ goto out;
+ }
+ memset(address_lv, 0, sizeof(address_lv));
+ memcpy(address_lv, smsp, da_len_bytes);
+ /* mangle first byte to reflect length in bytes, not digits */
+ address_lv[0] = da_len_bytes - 1;
+ /* convert to real number */
+ gsm48_decode_bcd_number(gsms->dest_addr, sizeof(gsms->dest_addr), address_lv, 1);
+ smsp += da_len_bytes;
+
+ gsms->protocol_id = *smsp++;
+ gsms->data_coding_scheme = *smsp++;
+
+ sms_alphabet = gsm338_get_sms_alphabet(gsms->data_coding_scheme);
+ if (sms_alphabet == 0xffffffff) {
+ sms_free(gsms);
+ return GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER;
+ }
+
+ switch (sms_vpf) {
+ case GSM340_TP_VPF_RELATIVE:
+ sms_vp = smsp++;
+ break;
+ case GSM340_TP_VPF_ABSOLUTE:
+ case GSM340_TP_VPF_ENHANCED:
+ sms_vp = smsp;
+ /* the additional functionality indicator... */
+ if (sms_vpf == GSM340_TP_VPF_ENHANCED && *smsp & (1<<7))
+ smsp++;
+ smsp += 7;
+ break;
+ case GSM340_TP_VPF_NONE:
+ sms_vp = 0;
+ break;
+ default:
+ LOGP(DSMS, LOGL_NOTICE,
+ "SMS Validity period not implemented: 0x%02x\n", sms_vpf);
+ return GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER;
+ }
+ gsms->user_data_len = *smsp++;
+ if (gsms->user_data_len) {
+ memcpy(gsms->user_data, smsp, gsms->user_data_len);
+
+ switch (sms_alphabet) {
+ case DCS_7BIT_DEFAULT:
+ gsm_7bit_decode(gsms->text, smsp, gsms->user_data_len);
+ break;
+ case DCS_8BIT_DATA:
+ case DCS_UCS2:
+ case DCS_NONE:
+ break;
+ }
+ }
+
+ gsms->sender = subscr_get(conn->subscr);
+
+ LOGP(DSMS, LOGL_INFO, "RX SMS: Sender: %s, MTI: 0x%02x, VPF: 0x%02x, "
+ "MR: 0x%02x PID: 0x%02x, DCS: 0x%02x, DA: %s, "
+ "UserDataLength: 0x%02x, UserData: \"%s\"\n",
+ subscr_name(gsms->sender), sms_mti, sms_vpf, gsms->msg_ref,
+ gsms->protocol_id, gsms->data_coding_scheme, gsms->dest_addr,
+ gsms->user_data_len,
+ sms_alphabet == DCS_7BIT_DEFAULT ? gsms->text :
+ hexdump(gsms->user_data, gsms->user_data_len));
+
+ gsms->validity_minutes = gsm340_validity_period(sms_vpf, sms_vp);
+
+ /* FIXME: This looks very wrong */
+ send_signal(0, NULL, gsms, 0);
+
+ /* determine gsms->receiver based on dialled number */
+ gsms->receiver = subscr_get_by_extension(conn->bts->network, gsms->dest_addr);
+ if (!gsms->receiver) {
+ rc = 1; /* cause 1: unknown subscriber */
+ counter_inc(conn->bts->network->stats.sms.no_receiver);
+ goto out;
+ }
+
+ switch (sms_mti) {
+ case GSM340_SMS_SUBMIT_MS2SC:
+ /* MS is submitting a SMS */
+ rc = gsm340_rx_sms_submit(msg, gsms);
+ break;
+ case GSM340_SMS_COMMAND_MS2SC:
+ case GSM340_SMS_DELIVER_REP_MS2SC:
+ LOGP(DSMS, LOGL_NOTICE, "Unimplemented MTI 0x%02x\n", sms_mti);
+ rc = GSM411_RP_CAUSE_IE_NOTEXIST;
+ break;
+ default:
+ LOGP(DSMS, LOGL_NOTICE, "Undefined MTI 0x%02x\n", sms_mti);
+ rc = GSM411_RP_CAUSE_IE_NOTEXIST;
+ break;
+ }
+
+ if (!rc && !gsms->receiver)
+ rc = GSM411_RP_CAUSE_MO_NUM_UNASSIGNED;
+
+out:
+ sms_free(gsms);
+
+ return rc;
+}
+
+static int gsm411_send_rp_ack(struct gsm_trans *trans, u_int8_t msg_ref)
+{
+ struct msgb *msg = gsm411_msgb_alloc();
+
+ DEBUGP(DSMS, "TX: SMS RP ACK\n");
+
+ return gsm411_rp_sendmsg(msg, trans, GSM411_MT_RP_ACK_MT, msg_ref);
+}
+
+static int gsm411_send_rp_error(struct gsm_trans *trans,
+ u_int8_t msg_ref, u_int8_t cause)
+{
+ struct msgb *msg = gsm411_msgb_alloc();
+
+ msgb_tv_put(msg, 1, cause);
+
+ LOGP(DSMS, LOGL_NOTICE, "TX: SMS RP ERROR, cause %d (%s)\n", cause,
+ get_value_string(rp_cause_strs, cause));
+
+ return gsm411_rp_sendmsg(msg, trans, GSM411_MT_RP_ERROR_MT, msg_ref);
+}
+
+/* Receive a 04.11 TPDU inside RP-DATA / user data */
+static int gsm411_rx_rp_ud(struct msgb *msg, struct gsm_trans *trans,
+ struct gsm411_rp_hdr *rph,
+ u_int8_t src_len, u_int8_t *src,
+ u_int8_t dst_len, u_int8_t *dst,
+ u_int8_t tpdu_len, u_int8_t *tpdu)
+{
+ int rc = 0;
+
+ if (src_len && src)
+ LOGP(DSMS, LOGL_ERROR, "RP-DATA (MO) with SRC ?!?\n");
+
+ if (!dst_len || !dst || !tpdu_len || !tpdu) {
+ LOGP(DSMS, LOGL_ERROR,
+ "RP-DATA (MO) without DST or TPDU ?!?\n");
+ gsm411_send_rp_error(trans, rph->msg_ref,
+ GSM411_RP_CAUSE_INV_MAND_INF);
+ return -EIO;
+ }
+ msg->l4h = tpdu;
+
+ DEBUGP(DSMS, "DST(%u,%s)\n", dst_len, hexdump(dst, dst_len));
+
+ rc = gsm340_rx_tpdu(trans->conn, msg);
+ if (rc == 0)
+ return gsm411_send_rp_ack(trans, rph->msg_ref);
+ else if (rc > 0)
+ return gsm411_send_rp_error(trans, rph->msg_ref, rc);
+ else
+ return rc;
+}
+
+/* Receive a 04.11 RP-DATA message in accordance with Section 7.3.1.2 */
+static int gsm411_rx_rp_data(struct msgb *msg, struct gsm_trans *trans,
+ struct gsm411_rp_hdr *rph)
+{
+ u_int8_t src_len, dst_len, rpud_len;
+ u_int8_t *src = NULL, *dst = NULL , *rp_ud = NULL;
+
+ /* in the MO case, this should always be zero length */
+ src_len = rph->data[0];
+ if (src_len)
+ src = &rph->data[1];
+
+ dst_len = rph->data[1+src_len];
+ if (dst_len)
+ dst = &rph->data[1+src_len+1];
+
+ rpud_len = rph->data[1+src_len+1+dst_len];
+ if (rpud_len)
+ rp_ud = &rph->data[1+src_len+1+dst_len+1];
+
+ DEBUGP(DSMS, "RX_RP-DATA: src_len=%u, dst_len=%u ud_len=%u\n",
+ src_len, dst_len, rpud_len);
+ return gsm411_rx_rp_ud(msg, trans, rph, src_len, src, dst_len, dst,
+ rpud_len, rp_ud);
+}
+
+/* Receive a 04.11 RP-ACK message (response to RP-DATA from us) */
+static int gsm411_rx_rp_ack(struct msgb *msg, struct gsm_trans *trans,
+ struct gsm411_rp_hdr *rph)
+{
+ struct gsm_sms *sms = trans->sms.sms;
+
+ /* Acnkowledgement to MT RP_DATA, i.e. the MS confirms it
+ * successfully received a SMS. We can now safely mark it as
+ * transmitted */
+
+ if (!trans->sms.is_mt) {
+ LOGP(DSMS, LOGL_ERROR, "RX RP-ACK on a MO transfer ?\n");
+ return gsm411_send_rp_error(trans, rph->msg_ref,
+ GSM411_RP_CAUSE_MSG_INCOMP_STATE);
+ }
+
+ if (!sms) {
+ LOGP(DSMS, LOGL_ERROR, "RX RP-ACK but no sms in transaction?!?\n");
+ return gsm411_send_rp_error(trans, rph->msg_ref,
+ GSM411_RP_CAUSE_PROTOCOL_ERR);
+ }
+
+ /* mark this SMS as sent in database */
+ db_sms_mark_sent(sms);
+
+ send_signal(S_SMS_DELIVERED, trans, sms, 0);
+
+ sms_free(sms);
+ trans->sms.sms = NULL;
+
+ /* check for more messages for this subscriber */
+ sms = db_sms_get_unsent_for_subscr(trans->subscr);
+ if (sms)
+ gsm411_send_sms(trans->conn, sms);
+ else
+ gsm411_release_conn(trans->conn);
+
+ /* free the transaction here */
+ trans_free(trans);
+ return 0;
+}
+
+static int gsm411_rx_rp_error(struct msgb *msg, struct gsm_trans *trans,
+ struct gsm411_rp_hdr *rph)
+{
+ struct gsm_network *net = trans->conn->bts->network;
+ struct gsm_sms *sms = trans->sms.sms;
+ u_int8_t cause_len = rph->data[0];
+ u_int8_t cause = rph->data[1];
+
+ /* Error in response to MT RP_DATA, i.e. the MS did not
+ * successfully receive the SMS. We need to investigate
+ * the cause and take action depending on it */
+
+ LOGP(DSMS, LOGL_NOTICE, "%s: RX SMS RP-ERROR, cause %d:%d (%s)\n",
+ subscr_name(trans->conn->subscr), cause_len, cause,
+ get_value_string(rp_cause_strs, cause));
+
+ if (!trans->sms.is_mt) {
+ LOGP(DSMS, LOGL_ERROR, "RX RP-ERR on a MO transfer ?\n");
+#if 0
+ return gsm411_send_rp_error(trans, rph->msg_ref,
+ GSM411_RP_CAUSE_MSG_INCOMP_STATE);
+#endif
+ }
+
+ if (!sms) {
+ LOGP(DSMS, LOGL_ERROR,
+ "RX RP-ERR, but no sms in transaction?!?\n");
+ return -EINVAL;
+#if 0
+ return gsm411_send_rp_error(trans, rph->msg_ref,
+ GSM411_RP_CAUSE_PROTOCOL_ERR);
+#endif
+ }
+
+ if (cause == GSM411_RP_CAUSE_MT_MEM_EXCEEDED) {
+ /* MS has not enough memory to store the message. We need
+ * to store this in our database and wait for a SMMA message */
+ /* FIXME */
+ send_signal(S_SMS_MEM_EXCEEDED, trans, sms, 0);
+ counter_inc(net->stats.sms.rp_err_mem);
+ } else {
+ send_signal(S_SMS_UNKNOWN_ERROR, trans, sms, 0);
+ counter_inc(net->stats.sms.rp_err_other);
+ }
+
+ sms_free(sms);
+ trans->sms.sms = NULL;
+
+ return 0;
+}
+
+static int gsm411_rx_rp_smma(struct msgb *msg, struct gsm_trans *trans,
+ struct gsm411_rp_hdr *rph)
+{
+ struct gsm_sms *sms;
+ int rc;
+
+ rc = gsm411_send_rp_ack(trans, rph->msg_ref);
+ trans->sms.rp_state = GSM411_RPS_IDLE;
+
+ /* MS tells us that it has memory for more SMS, we need
+ * to check if we have any pending messages for it and then
+ * transfer those */
+ send_signal(S_SMS_SMMA, trans, NULL, 0);
+
+ /* check for more messages for this subscriber */
+ sms = db_sms_get_unsent_for_subscr(trans->subscr);
+ if (sms)
+ gsm411_send_sms(trans->conn, sms);
+ else
+ gsm411_release_conn(trans->conn);
+
+ return rc;
+}
+
+static int gsm411_rx_cp_data(struct msgb *msg, struct gsm48_hdr *gh,
+ struct gsm_trans *trans)
+{
+ struct gsm411_rp_hdr *rp_data = (struct gsm411_rp_hdr*)&gh->data;
+ u_int8_t msg_type = rp_data->msg_type & 0x07;
+ int rc = 0;
+
+ switch (msg_type) {
+ case GSM411_MT_RP_DATA_MO:
+ DEBUGP(DSMS, "RX SMS RP-DATA (MO)\n");
+ /* start TR2N and enter 'wait to send RP-ACK state' */
+ trans->sms.rp_state = GSM411_RPS_WAIT_TO_TX_RP_ACK;
+ rc = gsm411_rx_rp_data(msg, trans, rp_data);
+ break;
+ case GSM411_MT_RP_ACK_MO:
+ DEBUGP(DSMS,"RX SMS RP-ACK (MO)\n");
+ rc = gsm411_rx_rp_ack(msg, trans, rp_data);
+ break;
+ case GSM411_MT_RP_SMMA_MO:
+ DEBUGP(DSMS, "RX SMS RP-SMMA\n");
+ /* start TR2N and enter 'wait to send RP-ACK state' */
+ trans->sms.rp_state = GSM411_RPS_WAIT_TO_TX_RP_ACK;
+ rc = gsm411_rx_rp_smma(msg, trans, rp_data);
+ break;
+ case GSM411_MT_RP_ERROR_MO:
+ rc = gsm411_rx_rp_error(msg, trans, rp_data);
+ break;
+ default:
+ LOGP(DSMS, LOGL_NOTICE, "Invalid RP type 0x%02x\n", msg_type);
+ rc = gsm411_send_rp_error(trans, rp_data->msg_ref,
+ GSM411_RP_CAUSE_MSGTYPE_NOTEXIST);
+ break;
+ }
+
+ return rc;
+}
+
+/* send CP-ACK to given transaction */
+static int gsm411_tx_cp_ack(struct gsm_trans *trans)
+{
+ struct msgb *msg = gsm411_msgb_alloc();
+ int rc;
+
+ rc = gsm411_cp_sendmsg(msg, trans, GSM411_MT_CP_ACK);
+
+ if (trans->sms.is_mt) {
+ /* If this is a MT SMS DELIVER, we can clear transaction here */
+ trans->sms.cp_state = GSM411_CPS_IDLE;
+ //trans_free(trans);
+ }
+
+ return rc;
+}
+
+static int gsm411_tx_cp_error(struct gsm_trans *trans, u_int8_t cause)
+{
+ struct msgb *msg = gsm411_msgb_alloc();
+ u_int8_t *causep;
+
+ LOGP(DSMS, LOGL_NOTICE, "TX CP-ERROR, cause %d (%s)\n", cause,
+ get_value_string(cp_cause_strs, cause));
+
+ causep = msgb_put(msg, 1);
+ *causep = cause;
+
+ return gsm411_cp_sendmsg(msg, trans, GSM411_MT_CP_ERROR);
+}
+
+/* Entry point for incoming GSM48_PDISC_SMS from abis_rsl.c */
+int gsm0411_rcv_sms(struct gsm_subscriber_connection *conn,
+ struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ u_int8_t msg_type = gh->msg_type;
+ u_int8_t transaction_id = ((gh->proto_discr >> 4) ^ 0x8); /* flip */
+ struct gsm_trans *trans;
+ int rc = 0;
+
+ if (!conn->subscr)
+ return -EIO;
+ /* FIXME: send some error message */
+
+ DEBUGP(DSMS, "trans_id=%x ", transaction_id);
+ trans = trans_find_by_id(conn->subscr, GSM48_PDISC_SMS,
+ transaction_id);
+ if (!trans) {
+ DEBUGPC(DSMS, "(new) ");
+ trans = trans_alloc(conn->subscr, GSM48_PDISC_SMS,
+ transaction_id, new_callref++);
+ if (!trans) {
+ DEBUGPC(DSMS, "No memory for trans\n");
+ /* FIXME: send some error message */
+ return -ENOMEM;
+ }
+ trans->sms.cp_state = GSM411_CPS_IDLE;
+ trans->sms.rp_state = GSM411_RPS_IDLE;
+ trans->sms.is_mt = 0;
+ trans->sms.link_id = UM_SAPI_SMS;
+
+ trans->conn = conn;
+ }
+
+ switch(msg_type) {
+ case GSM411_MT_CP_DATA:
+ DEBUGPC(DSMS, "RX SMS CP-DATA\n");
+
+ /* 5.4: For MO, if a CP-DATA is received for a new
+ * transaction, equals reception of an implicit
+ * last CP-ACK for previous transaction */
+ if (trans->sms.cp_state == GSM411_CPS_IDLE) {
+ int i;
+ struct gsm_trans *ptrans;
+
+ /* Scan through all remote initiated transactions */
+ for (i=8; i<15; i++) {
+ if (i == transaction_id)
+ continue;
+
+ ptrans = trans_find_by_id(conn->subscr,
+ GSM48_PDISC_SMS, i);
+ if (!ptrans)
+ continue;
+
+ DEBUGP(DSMS, "Implicit CP-ACK for trans_id=%x\n", i);
+
+ /* Finish it for good */
+ bsc_del_timer(&ptrans->sms.cp_timer);
+ ptrans->sms.cp_state = GSM411_CPS_IDLE;
+ trans_free(ptrans);
+ }
+ }
+
+ /* 5.2.3.1.3: MO state exists when SMC has received
+ * CP-DATA, including sending of the assoc. CP-ACK */
+ /* 5.2.3.2.4: MT state exists when SMC has received
+ * CP-DATA, including sending of the assoc. CP-ACK */
+ trans->sms.cp_state = GSM411_CPS_MM_ESTABLISHED;
+
+ /* SMC instance acknowledges the CP-DATA frame */
+ gsm411_tx_cp_ack(trans);
+
+ rc = gsm411_rx_cp_data(msg, gh, trans);
+#if 0
+ /* Send CP-ACK or CP-ERORR in response */
+ if (rc < 0) {
+ rc = gsm411_tx_cp_error(trans, GSM411_CP_CAUSE_NET_FAIL);
+ } else
+ rc = gsm411_tx_cp_ack(trans);
+#endif
+ break;
+ case GSM411_MT_CP_ACK:
+ /* previous CP-DATA in this transaction was confirmed */
+ DEBUGPC(DSMS, "RX SMS CP-ACK\n");
+ /* 5.2.3.1.3: MO state exists when SMC has received CP-ACK */
+ /* 5.2.3.2.4: MT state exists when SMC has received CP-ACK */
+ trans->sms.cp_state = GSM411_CPS_MM_ESTABLISHED;
+ /* Stop TC1* after CP-ACK has been received */
+ bsc_del_timer(&trans->sms.cp_timer);
+
+ if (!trans->sms.is_mt) {
+ /* FIXME: we have sent one CP-DATA, which was now
+ * acknowledged. Check if we want to transfer more,
+ * i.e. multi-part message */
+ trans->sms.cp_state = GSM411_CPS_IDLE;
+ trans_free(trans);
+ }
+ break;
+ case GSM411_MT_CP_ERROR:
+ DEBUGPC(DSMS, "RX SMS CP-ERROR, cause %d (%s)\n", gh->data[0],
+ get_value_string(cp_cause_strs, gh->data[0]));
+ bsc_del_timer(&trans->sms.cp_timer);
+ trans->sms.cp_state = GSM411_CPS_IDLE;
+ trans_free(trans);
+ break;
+ default:
+ DEBUGPC(DSMS, "RX Unimplemented CP msg_type: 0x%02x\n", msg_type);
+ rc = gsm411_tx_cp_error(trans, GSM411_CP_CAUSE_MSGTYPE_NOTEXIST);
+ trans->sms.cp_state = GSM411_CPS_IDLE;
+ trans_free(trans);
+ break;
+ }
+
+ return rc;
+}
+
+/* Take a SMS in gsm_sms structure and send it through an already
+ * existing lchan. We also assume that the caller ensured this lchan already
+ * has a SAPI3 RLL connection! */
+int gsm411_send_sms(struct gsm_subscriber_connection *conn, struct gsm_sms *sms)
+{
+ struct msgb *msg = gsm411_msgb_alloc();
+ struct gsm_trans *trans;
+ u_int8_t *data, *rp_ud_len;
+ u_int8_t msg_ref = 42;
+ int transaction_id;
+ int rc;
+
+ transaction_id = trans_assign_trans_id(conn->subscr, GSM48_PDISC_SMS, 0);
+ if (transaction_id == -1) {
+ LOGP(DSMS, LOGL_ERROR, "No available transaction ids\n");
+ send_signal(S_SMS_UNKNOWN_ERROR, NULL, sms, 0);
+ sms_free(sms);
+ return -EBUSY;
+ }
+
+ DEBUGP(DSMS, "send_sms_lchan()\n");
+
+ /* FIXME: allocate transaction with message reference */
+ trans = trans_alloc(conn->subscr, GSM48_PDISC_SMS,
+ transaction_id, new_callref++);
+ if (!trans) {
+ LOGP(DSMS, LOGL_ERROR, "No memory for trans\n");
+ send_signal(S_SMS_UNKNOWN_ERROR, NULL, sms, 0);
+ sms_free(sms);
+ /* FIXME: send some error message */
+ return -ENOMEM;
+ }
+ trans->sms.cp_state = GSM411_CPS_IDLE;
+ trans->sms.rp_state = GSM411_RPS_IDLE;
+ trans->sms.is_mt = 1;
+ trans->sms.sms = sms;
+ trans->sms.link_id = UM_SAPI_SMS; /* FIXME: main or SACCH ? */
+
+ trans->conn = conn;
+
+ /* Hardcode SMSC Originating Address for now */
+ data = (u_int8_t *)msgb_put(msg, 8);
+ data[0] = 0x07; /* originator length == 7 */
+ data[1] = 0x91; /* type of number: international, ISDN */
+ data[2] = 0x44; /* 447785016005 */
+ data[3] = 0x77;
+ data[4] = 0x58;
+ data[5] = 0x10;
+ data[6] = 0x06;
+ data[7] = 0x50;
+
+ /* Hardcoded Destination Address */
+ data = (u_int8_t *)msgb_put(msg, 1);
+ data[0] = 0; /* destination length == 0 */
+
+ /* obtain a pointer for the rp_ud_len, so we can fill it later */
+ rp_ud_len = (u_int8_t *)msgb_put(msg, 1);
+
+ /* generate the 03.40 TPDU */
+ rc = gsm340_gen_tpdu(msg, sms);
+ if (rc < 0) {
+ send_signal(S_SMS_UNKNOWN_ERROR, trans, sms, 0);
+ trans_free(trans);
+ sms_free(sms);
+ msgb_free(msg);
+ return rc;
+ }
+
+ *rp_ud_len = rc;
+
+ DEBUGP(DSMS, "TX: SMS DELIVER\n");
+
+ counter_inc(conn->bts->network->stats.sms.delivered);
+ db_sms_inc_deliver_attempts(trans->sms.sms);
+
+ return gsm411_rp_sendmsg(msg, trans, GSM411_MT_RP_DATA_MT, msg_ref);
+ /* FIXME: enter 'wait for RP-ACK' state, start TR1N */
+}
+
+/* paging callback. Here we get called if paging a subscriber has
+ * succeeded or failed. */
+static int paging_cb_send_sms(unsigned int hooknum, unsigned int event,
+ struct msgb *msg, void *_conn, void *_sms)
+{
+ struct gsm_subscriber_connection *conn = _conn;
+ struct gsm_sms *sms = _sms;
+ int rc = 0;
+
+ DEBUGP(DSMS, "paging_cb_send_sms(hooknum=%u, event=%u, msg=%p,"
+ "conn=%p, sms=%p/id: %llu)\n", hooknum, event, msg, conn, sms, sms->id);
+
+ if (hooknum != GSM_HOOK_RR_PAGING)
+ return -EINVAL;
+
+ switch (event) {
+ case GSM_PAGING_SUCCEEDED:
+ gsm411_send_sms(conn, sms);
+ break;
+ case GSM_PAGING_EXPIRED:
+ case GSM_PAGING_OOM:
+ case GSM_PAGING_BUSY:
+ send_signal(S_SMS_UNKNOWN_ERROR, NULL, sms, event);
+ sms_free(sms);
+ rc = -ETIMEDOUT;
+ break;
+ default:
+ LOGP(DSMS, LOGL_ERROR, "Unhandled paging event: %d\n", event);
+ }
+
+ return rc;
+}
+
+/* high-level function to send a SMS to a given subscriber. The function
+ * will take care of paging the subscriber, establishing the RLL SAPI3
+ * connection, etc. */
+int gsm411_send_sms_subscr(struct gsm_subscriber *subscr,
+ struct gsm_sms *sms)
+{
+ struct gsm_subscriber_connection *conn;
+
+ /* check if we already have an open lchan to the subscriber.
+ * if yes, send the SMS this way */
+ conn = connection_for_subscr(subscr);
+ if (conn) {
+ return gsm411_send_sms(conn, sms);
+ }
+
+ /* if not, we have to start paging */
+ subscr_get_channel(subscr, RSL_CHANNEED_SDCCH, paging_cb_send_sms, sms);
+ return 0;
+}
+
+void _gsm411_sms_trans_free(struct gsm_trans *trans)
+{
+ if (trans->sms.sms) {
+ LOGP(DSMS, LOGL_ERROR, "Transaction contains SMS.\n");
+ send_signal(S_SMS_UNKNOWN_ERROR, trans, trans->sms.sms, 0);
+ sms_free(trans->sms.sms);
+ trans->sms.sms = NULL;
+ }
+
+ bsc_del_timer(&trans->sms.cp_timer);
+}
+
+void gsm411_sapi_n_reject(struct gsm_subscriber_connection *conn)
+{
+ struct gsm_subscriber *subscr;
+ struct gsm_network *net;
+ struct gsm_trans *trans, *tmp;
+
+ subscr = subscr_get(conn->subscr);
+ net = conn->bts->network;
+
+ llist_for_each_entry_safe(trans, tmp, &net->trans_list, entry)
+ if (trans->conn == conn) {
+ struct gsm_sms *sms = trans->sms.sms;
+ if (!sms) {
+ LOGP(DSMS, LOGL_ERROR, "SAPI Reject but no SMS.\n");
+ continue;
+ }
+
+ send_signal(S_SMS_UNKNOWN_ERROR, trans, sms, 0);
+ sms_free(sms);
+ trans->sms.sms = NULL;
+ trans_free(trans);
+ }
+
+ subscr_put_channel(subscr);
+ subscr_put(subscr);
+}
+
diff --git a/src/libmsc/gsm_04_80.c b/src/libmsc/gsm_04_80.c
new file mode 100644
index 00000000..494c319f
--- /dev/null
+++ b/src/libmsc/gsm_04_80.c
@@ -0,0 +1,175 @@
+/* GSM Mobile Radio Interface Layer 3 messages on the A-bis interface
+ * 3GPP TS 04.08 version 7.21.0 Release 1998 / ETSI TS 100 940 V7.21.0 */
+
+/* (C) 2008-2009 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2008, 2009, 2010 by Holger Hans Peter Freyther <zecke@selfish.org>
+ * (C) 2009 by Mike Haben <michael.haben@btinternet.com>
+ *
+ * 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include <openbsc/debug.h>
+#include <openbsc/gsm_data.h>
+#include <openbsc/gsm_04_08.h>
+#include <openbsc/gsm_04_80.h>
+#include <openbsc/bsc_api.h>
+
+#include <osmocore/gsm0480.h>
+#include <osmocore/gsm_utils.h>
+#include <osmocore/msgb.h>
+#include <osmocore/tlv.h>
+
+static inline unsigned char *msgb_wrap_with_TL(struct msgb *msgb, u_int8_t tag)
+{
+ uint8_t *data = msgb_push(msgb, 2);
+
+ data[0] = tag;
+ data[1] = msgb->len - 2;
+ return data;
+}
+
+static inline unsigned char *msgb_push_TLV1(struct msgb *msgb, u_int8_t tag,
+ u_int8_t value)
+{
+ uint8_t *data = msgb_push(msgb, 3);
+
+ data[0] = tag;
+ data[1] = 1;
+ data[2] = value;
+ return data;
+}
+
+
+/* Send response to a mobile-originated ProcessUnstructuredSS-Request */
+int gsm0480_send_ussd_response(struct gsm_subscriber_connection *conn,
+ const struct msgb *in_msg, const char *response_text,
+ const struct ussd_request *req)
+{
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh;
+ u_int8_t *ptr8;
+ int response_len;
+
+ /* First put the payload text into the message */
+ ptr8 = msgb_put(msg, 0);
+ response_len = gsm_7bit_encode(ptr8, response_text);
+ msgb_put(msg, response_len);
+
+ /* Then wrap it as an Octet String */
+ msgb_wrap_with_TL(msg, ASN1_OCTET_STRING_TAG);
+
+ /* Pre-pend the DCS octet string */
+ msgb_push_TLV1(msg, ASN1_OCTET_STRING_TAG, 0x0F);
+
+ /* Then wrap these as a Sequence */
+ msgb_wrap_with_TL(msg, GSM_0480_SEQUENCE_TAG);
+
+ /* Pre-pend the operation code */
+ msgb_push_TLV1(msg, GSM0480_OPERATION_CODE,
+ GSM0480_OP_CODE_PROCESS_USS_REQ);
+
+ /* Wrap the operation code and IA5 string as a sequence */
+ msgb_wrap_with_TL(msg, GSM_0480_SEQUENCE_TAG);
+
+ /* Pre-pend the invoke ID */
+ msgb_push_TLV1(msg, GSM0480_COMPIDTAG_INVOKE_ID, req->invoke_id);
+
+ /* Wrap this up as a Return Result component */
+ msgb_wrap_with_TL(msg, GSM0480_CTYPE_RETURN_RESULT);
+
+ /* Wrap the component in a Facility message */
+ msgb_wrap_with_TL(msg, GSM0480_IE_FACILITY);
+
+ /* And finally pre-pend the L3 header */
+ gh = (struct gsm48_hdr *) msgb_push(msg, sizeof(*gh));
+ gh->proto_discr = GSM48_PDISC_NC_SS | req->transaction_id
+ | (1<<7); /* TI direction = 1 */
+ gh->msg_type = GSM0480_MTYPE_RELEASE_COMPLETE;
+
+ return gsm0808_submit_dtap(conn, msg, 0, 0);
+}
+
+int gsm0480_send_ussd_reject(struct gsm_subscriber_connection *conn,
+ const struct msgb *in_msg,
+ const struct ussd_request *req)
+{
+ struct msgb *msg = gsm48_msgb_alloc();
+ struct gsm48_hdr *gh;
+
+ /* First insert the problem code */
+ msgb_push_TLV1(msg, GSM_0480_PROBLEM_CODE_TAG_GENERAL,
+ GSM_0480_GEN_PROB_CODE_UNRECOGNISED);
+
+ /* Before it insert the invoke ID */
+ msgb_push_TLV1(msg, GSM0480_COMPIDTAG_INVOKE_ID, req->invoke_id);
+
+ /* Wrap this up as a Reject component */
+ msgb_wrap_with_TL(msg, GSM0480_CTYPE_REJECT);
+
+ /* Wrap the component in a Facility message */
+ msgb_wrap_with_TL(msg, GSM0480_IE_FACILITY);
+
+ /* And finally pre-pend the L3 header */
+ gh = (struct gsm48_hdr *) msgb_push(msg, sizeof(*gh));
+ gh->proto_discr = GSM48_PDISC_NC_SS;
+ gh->proto_discr |= req->transaction_id | (1<<7); /* TI direction = 1 */
+ gh->msg_type = GSM0480_MTYPE_RELEASE_COMPLETE;
+
+ return gsm0808_submit_dtap(conn, msg, 0, 0);
+}
+
+int gsm0480_send_ussdNotify(struct gsm_subscriber_connection *conn, int level, const char *text)
+{
+ struct gsm48_hdr *gh;
+ struct msgb *msg;
+
+ msg = gsm0480_create_unstructuredSS_Notify(level, text);
+ if (!msg)
+ return -1;
+
+ gsm0480_wrap_invoke(msg, GSM0480_OP_CODE_USS_NOTIFY, 0);
+ gsm0480_wrap_facility(msg);
+
+ /* And finally pre-pend the L3 header */
+ gh = (struct gsm48_hdr *) msgb_push(msg, sizeof(*gh));
+ gh->proto_discr = GSM48_PDISC_NC_SS;
+ gh->msg_type = GSM0480_MTYPE_REGISTER;
+
+ return gsm0808_submit_dtap(conn, msg, 0, 0);
+}
+
+int gsm0480_send_releaseComplete(struct gsm_subscriber_connection *conn)
+{
+ struct gsm48_hdr *gh;
+ struct msgb *msg;
+
+ msg = gsm48_msgb_alloc();
+ if (!msg)
+ return -1;
+
+ gh = (struct gsm48_hdr *) msgb_push(msg, sizeof(*gh));
+ gh->proto_discr = GSM48_PDISC_NC_SS;
+ gh->msg_type = GSM0480_MTYPE_RELEASE_COMPLETE;
+
+ return gsm0808_submit_dtap(conn, msg, 0, 0);
+}
diff --git a/src/libmsc/gsm_subscriber.c b/src/libmsc/gsm_subscriber.c
new file mode 100644
index 00000000..db61f25a
--- /dev/null
+++ b/src/libmsc/gsm_subscriber.c
@@ -0,0 +1,410 @@
+/* The concept of a subscriber for the MSC, roughly HLR/VLR functionality */
+
+/* (C) 2008 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2009 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 <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+
+#include <osmocore/talloc.h>
+
+#include <osmocom/vty/vty.h>
+
+#include <openbsc/gsm_subscriber.h>
+#include <openbsc/gsm_04_08.h>
+#include <openbsc/debug.h>
+#include <openbsc/paging.h>
+#include <openbsc/signal.h>
+#include <openbsc/db.h>
+
+void *tall_sub_req_ctx;
+
+extern struct llist_head *subscr_bsc_active_subscriber(void);
+
+int gsm48_secure_channel(struct gsm_subscriber_connection *conn, int key_seq,
+ gsm_cbfn *cb, void *cb_data);
+
+
+/*
+ * Struct for pending channel requests. This is managed in the
+ * llist_head requests of each subscriber. The reference counting
+ * should work in such a way that a subscriber with a pending request
+ * remains in memory.
+ */
+struct subscr_request {
+ struct llist_head entry;
+
+ /* back reference */
+ struct gsm_subscriber *subscr;
+
+ /* the requested channel type */
+ int channel_type;
+
+ /* what did we do */
+ int state;
+
+ /* the callback data */
+ gsm_cbfn *cbfn;
+ void *param;
+};
+
+enum {
+ REQ_STATE_INITIAL,
+ REQ_STATE_QUEUED,
+ REQ_STATE_PAGED,
+ REQ_STATE_FAILED_START,
+ REQ_STATE_DISPATCHED,
+};
+
+/*
+ * We got the channel assigned and can now hand this channel
+ * over to one of our callbacks.
+ */
+static int subscr_paging_dispatch(unsigned int hooknum, unsigned int event,
+ struct msgb *msg, void *data, void *param)
+{
+ struct subscr_request *request;
+ struct gsm_subscriber_connection *conn = data;
+ struct gsm_subscriber *subscr = param;
+ struct paging_signal_data sig_data;
+
+ /* There is no request anymore... */
+ if (llist_empty(&subscr->requests))
+ return -1;
+
+ /* Dispatch signal */
+ sig_data.subscr = subscr;
+ sig_data.bts = conn ? conn->bts : NULL;
+ sig_data.conn = conn;
+ sig_data.paging_result = event;
+ dispatch_signal(
+ SS_PAGING,
+ event == GSM_PAGING_SUCCEEDED ?
+ S_PAGING_SUCCEEDED : S_PAGING_EXPIRED,
+ &sig_data
+ );
+
+ /*
+ * FIXME: What to do with paging requests coming during
+ * this callback? We must be sure to not start paging when
+ * we have an active connection to a subscriber and to make
+ * the subscr_put_channel work as required...
+ */
+ request = (struct subscr_request *)subscr->requests.next;
+ request->state = REQ_STATE_DISPATCHED;
+ llist_del(&request->entry);
+ subscr->in_callback = 1;
+ request->cbfn(hooknum, event, msg, data, request->param);
+ subscr->in_callback = 0;
+
+ if (event != GSM_PAGING_SUCCEEDED) {
+ /*
+ * This is a workaround for a bigger issue. We have
+ * issued paging that might involve multiple BTSes
+ * and one of them have failed now. We will stop the
+ * other paging requests as well as the next timeout
+ * would work on the next paging request and the queue
+ * will do bad things. This should be fixed by counting
+ * the outstanding results.
+ */
+ paging_request_stop(NULL, subscr, NULL, NULL);
+ subscr_put_channel(subscr);
+ }
+
+ subscr_put(subscr);
+ talloc_free(request);
+ return 0;
+}
+
+static int subscr_paging_sec_cb(unsigned int hooknum, unsigned int event,
+ struct msgb *msg, void *data, void *param)
+{
+ int rc;
+
+ switch (event) {
+ case GSM_SECURITY_AUTH_FAILED:
+ /* Dispatch as paging failure */
+ rc = subscr_paging_dispatch(
+ GSM_HOOK_RR_PAGING, GSM_PAGING_EXPIRED,
+ msg, data, param);
+ break;
+
+ case GSM_SECURITY_NOAVAIL:
+ case GSM_SECURITY_SUCCEEDED:
+ /* Dispatch as paging failure */
+ rc = subscr_paging_dispatch(
+ GSM_HOOK_RR_PAGING, GSM_PAGING_SUCCEEDED,
+ msg, data, param);
+ break;
+
+ default:
+ rc = -EINVAL;
+ }
+
+ return rc;
+}
+
+static int subscr_paging_cb(unsigned int hooknum, unsigned int event,
+ struct msgb *msg, void *data, void *param)
+{
+ struct gsm_subscriber_connection *conn = data;
+ struct gsm48_hdr *gh;
+ struct gsm48_pag_resp *pr;
+
+ /* Other cases mean problem, dispatch direclty */
+ if (event != GSM_PAGING_SUCCEEDED)
+ return subscr_paging_dispatch(hooknum, event, msg, data, param);
+
+ /* Get paging response */
+ gh = msgb_l3(msg);
+ pr = (struct gsm48_pag_resp *)gh->data;
+
+ /* We _really_ have a channel, secure it now ! */
+ return gsm48_secure_channel(conn, pr->key_seq, subscr_paging_sec_cb, param);
+}
+
+
+static void subscr_send_paging_request(struct gsm_subscriber *subscr)
+{
+ struct subscr_request *request;
+ int rc;
+
+ assert(!llist_empty(&subscr->requests));
+
+ request = (struct subscr_request *)subscr->requests.next;
+ request->state = REQ_STATE_PAGED;
+ rc = paging_request(subscr->net, subscr, request->channel_type,
+ subscr_paging_cb, subscr);
+
+ /* paging failed, quit now */
+ if (rc <= 0) {
+ request->state = REQ_STATE_FAILED_START;
+ subscr_paging_cb(GSM_HOOK_RR_PAGING, GSM_PAGING_BUSY,
+ NULL, NULL, subscr);
+ }
+}
+
+void subscr_get_channel(struct gsm_subscriber *subscr,
+ int type, gsm_cbfn *cbfn, void *param)
+{
+ struct subscr_request *request;
+
+ request = talloc(tall_sub_req_ctx, struct subscr_request);
+ if (!request) {
+ if (cbfn)
+ cbfn(GSM_HOOK_RR_PAGING, GSM_PAGING_OOM,
+ NULL, NULL, param);
+ return;
+ }
+
+ memset(request, 0, sizeof(*request));
+ request->subscr = subscr_get(subscr);
+ request->channel_type = type;
+ request->cbfn = cbfn;
+ request->param = param;
+ request->state = REQ_STATE_INITIAL;
+
+ /*
+ * FIXME: We might be able to assign more than one
+ * channel, e.g. voice and SMS submit at the same
+ * time.
+ */
+ if (!subscr->in_callback && llist_empty(&subscr->requests)) {
+ /* add to the list, send a request */
+ llist_add_tail(&request->entry, &subscr->requests);
+ subscr_send_paging_request(subscr);
+ } else {
+ /* this will be picked up later, from subscr_put_channel */
+ llist_add_tail(&request->entry, &subscr->requests);
+ request->state = REQ_STATE_QUEUED;
+ }
+}
+
+void subscr_put_channel(struct gsm_subscriber *subscr)
+{
+ /*
+ * FIXME: Continue with other requests now... by checking
+ * the gsm_subscriber inside the gsm_lchan. Drop the ref count
+ * of the lchan after having asked the next requestee to handle
+ * the channel.
+ */
+ /*
+ * FIXME: is the lchan is of a different type we could still
+ * issue an immediate assignment for another channel and then
+ * close this one.
+ */
+ /*
+ * Currently we will drop the last ref of the lchan which
+ * will result in a channel release on RSL and we will start
+ * the paging. This should work most of the time as the MS
+ * will listen to the paging requests before we timeout
+ */
+
+ if (subscr && !llist_empty(&subscr->requests))
+ subscr_send_paging_request(subscr);
+}
+
+
+struct gsm_subscriber *subscr_get_by_tmsi(struct gsm_network *net,
+ u_int32_t tmsi)
+{
+ char tmsi_string[14];
+ struct gsm_subscriber *subscr;
+
+ /* we might have a record in memory already */
+ llist_for_each_entry(subscr, subscr_bsc_active_subscriber(), entry) {
+ if (tmsi == subscr->tmsi)
+ return subscr_get(subscr);
+ }
+
+ sprintf(tmsi_string, "%u", tmsi);
+ return db_get_subscriber(net, GSM_SUBSCRIBER_TMSI, tmsi_string);
+}
+
+struct gsm_subscriber *subscr_get_by_imsi(struct gsm_network *net,
+ const char *imsi)
+{
+ struct gsm_subscriber *subscr;
+
+ llist_for_each_entry(subscr, subscr_bsc_active_subscriber(), entry) {
+ if (strcmp(subscr->imsi, imsi) == 0)
+ return subscr_get(subscr);
+ }
+
+ return db_get_subscriber(net, GSM_SUBSCRIBER_IMSI, imsi);
+}
+
+struct gsm_subscriber *subscr_get_by_extension(struct gsm_network *net,
+ const char *ext)
+{
+ struct gsm_subscriber *subscr;
+
+ llist_for_each_entry(subscr, subscr_bsc_active_subscriber(), entry) {
+ if (strcmp(subscr->extension, ext) == 0)
+ return subscr_get(subscr);
+ }
+
+ return db_get_subscriber(net, GSM_SUBSCRIBER_EXTENSION, ext);
+}
+
+struct gsm_subscriber *subscr_get_by_id(struct gsm_network *net,
+ unsigned long long id)
+{
+ struct gsm_subscriber *subscr;
+ char buf[32];
+ sprintf(buf, "%llu", id);
+
+ llist_for_each_entry(subscr, subscr_bsc_active_subscriber(), entry) {
+ if (subscr->id == id)
+ return subscr_get(subscr);
+ }
+
+ return db_get_subscriber(net, GSM_SUBSCRIBER_ID, buf);
+}
+
+
+int subscr_update(struct gsm_subscriber *s, struct gsm_bts *bts, int reason)
+{
+ int rc;
+
+ /* FIXME: Migrate pending requests from one BSC to another */
+ switch (reason) {
+ case GSM_SUBSCRIBER_UPDATE_ATTACHED:
+ s->net = bts->network;
+ /* Indicate "attached to LAC" */
+ s->lac = bts->location_area_code;
+ LOGP(DMM, LOGL_INFO, "Subscriber %s ATTACHED LAC=%u\n",
+ subscr_name(s), s->lac);
+ rc = db_sync_subscriber(s);
+ db_subscriber_update(s);
+ dispatch_signal(SS_SUBSCR, S_SUBSCR_ATTACHED, s);
+ break;
+ case GSM_SUBSCRIBER_UPDATE_DETACHED:
+ /* Only detach if we are currently in this area */
+ if (bts->location_area_code == s->lac)
+ s->lac = GSM_LAC_RESERVED_DETACHED;
+ LOGP(DMM, LOGL_INFO, "Subscriber %s DETACHED\n", subscr_name(s));
+ rc = db_sync_subscriber(s);
+ db_subscriber_update(s);
+ dispatch_signal(SS_SUBSCR, S_SUBSCR_DETACHED, s);
+ break;
+ default:
+ fprintf(stderr, "subscr_update with unknown reason: %d\n",
+ reason);
+ rc = db_sync_subscriber(s);
+ db_subscriber_update(s);
+ break;
+ };
+
+ return rc;
+}
+
+void subscr_update_from_db(struct gsm_subscriber *sub)
+{
+ db_subscriber_update(sub);
+}
+
+int subscr_pending_requests(struct gsm_subscriber *sub)
+{
+ struct subscr_request *req;
+ int pending = 0;
+
+ llist_for_each_entry(req, &sub->requests, entry)
+ pending += 1;
+
+ return pending;
+}
+
+int subscr_pending_clear(struct gsm_subscriber *sub)
+{
+ int deleted = 0;
+ struct subscr_request *req, *tmp;
+
+ llist_for_each_entry_safe(req, tmp, &sub->requests, entry) {
+ subscr_put(req->subscr);
+ llist_del(&req->entry);
+ talloc_free(req);
+ deleted += 1;
+ }
+
+ return deleted;
+}
+
+int subscr_pending_dump(struct gsm_subscriber *sub, struct vty *vty)
+{
+ struct subscr_request *req;
+
+ vty_out(vty, "Pending Requests for Subscriber %llu.%s", sub->id, VTY_NEWLINE);
+ llist_for_each_entry(req, &sub->requests, entry) {
+ vty_out(vty, "Channel type: %d State: %d Sub: %llu.%s",
+ req->channel_type, req->state, req->subscr->id, VTY_NEWLINE);
+ }
+
+ return 0;
+}
+
+int subscr_pending_kick(struct gsm_subscriber *sub)
+{
+ subscr_put_channel(sub);
+ return 0;
+}
diff --git a/src/libmsc/mncc.c b/src/libmsc/mncc.c
new file mode 100644
index 00000000..3630b91b
--- /dev/null
+++ b/src/libmsc/mncc.c
@@ -0,0 +1,110 @@
+/* mncc.c - utility routines for the MNCC API between the 04.08
+ * message parsing and the actual Call Control logic */
+
+/* (C) 2008-2009 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2009 by Andreas Eversberg <Andreas.Eversberg@versatel.de>
+ * 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/types.h>
+
+#include <openbsc/gsm_04_08.h>
+#include <openbsc/debug.h>
+#include <openbsc/mncc.h>
+#include <osmocore/talloc.h>
+#include <openbsc/gsm_data.h>
+#include <openbsc/transaction.h>
+#include <openbsc/rtp_proxy.h>
+
+static struct mncc_names {
+ char *name;
+ int value;
+} mncc_names[] = {
+ {"MNCC_SETUP_REQ", 0x0101},
+ {"MNCC_SETUP_IND", 0x0102},
+ {"MNCC_SETUP_RSP", 0x0103},
+ {"MNCC_SETUP_CNF", 0x0104},
+ {"MNCC_SETUP_COMPL_REQ",0x0105},
+ {"MNCC_SETUP_COMPL_IND",0x0106},
+ {"MNCC_CALL_CONF_IND", 0x0107},
+ {"MNCC_CALL_PROC_REQ", 0x0108},
+ {"MNCC_PROGRESS_REQ", 0x0109},
+ {"MNCC_ALERT_REQ", 0x010a},
+ {"MNCC_ALERT_IND", 0x010b},
+ {"MNCC_NOTIFY_REQ", 0x010c},
+ {"MNCC_NOTIFY_IND", 0x010d},
+ {"MNCC_DISC_REQ", 0x010e},
+ {"MNCC_DISC_IND", 0x010f},
+ {"MNCC_REL_REQ", 0x0110},
+ {"MNCC_REL_IND", 0x0111},
+ {"MNCC_REL_CNF", 0x0112},
+ {"MNCC_FACILITY_REQ", 0x0113},
+ {"MNCC_FACILITY_IND", 0x0114},
+ {"MNCC_START_DTMF_IND", 0x0115},
+ {"MNCC_START_DTMF_RSP", 0x0116},
+ {"MNCC_START_DTMF_REJ", 0x0117},
+ {"MNCC_STOP_DTMF_IND", 0x0118},
+ {"MNCC_STOP_DTMF_RSP", 0x0119},
+ {"MNCC_MODIFY_REQ", 0x011a},
+ {"MNCC_MODIFY_IND", 0x011b},
+ {"MNCC_MODIFY_RSP", 0x011c},
+ {"MNCC_MODIFY_CNF", 0x011d},
+ {"MNCC_MODIFY_REJ", 0x011e},
+ {"MNCC_HOLD_IND", 0x011f},
+ {"MNCC_HOLD_CNF", 0x0120},
+ {"MNCC_HOLD_REJ", 0x0121},
+ {"MNCC_RETRIEVE_IND", 0x0122},
+ {"MNCC_RETRIEVE_CNF", 0x0123},
+ {"MNCC_RETRIEVE_REJ", 0x0124},
+ {"MNCC_USERINFO_REQ", 0x0125},
+ {"MNCC_USERINFO_IND", 0x0126},
+ {"MNCC_REJ_REQ", 0x0127},
+ {"MNCC_REJ_IND", 0x0128},
+
+ {"MNCC_BRIDGE", 0x0200},
+ {"MNCC_FRAME_RECV", 0x0201},
+ {"MNCC_FRAME_DROP", 0x0202},
+ {"MNCC_LCHAN_MODIFY", 0x0203},
+
+ {"GSM_TCH_FRAME", 0x0300},
+
+ {NULL, 0} };
+
+char *get_mncc_name(int value)
+{
+ int i;
+
+ for (i = 0; mncc_names[i].name; i++) {
+ if (mncc_names[i].value == value)
+ return mncc_names[i].name;
+ }
+
+ return "MNCC_Unknown";
+}
+
+void mncc_set_cause(struct gsm_mncc *data, int loc, int val)
+{
+ data->fields |= MNCC_F_CAUSE;
+ data->cause.location = loc;
+ data->cause.value = val;
+}
+
diff --git a/src/libmsc/mncc_builtin.c b/src/libmsc/mncc_builtin.c
new file mode 100644
index 00000000..0226b274
--- /dev/null
+++ b/src/libmsc/mncc_builtin.c
@@ -0,0 +1,411 @@
+/* mncc_builtin.c - default, minimal built-in MNCC Application for
+ * standalone bsc_hack (netowrk-in-the-box mode) */
+
+/* (C) 2008-2010 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2009 by Andreas Eversberg <Andreas.Eversberg@versatel.de>
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/types.h>
+
+#include <openbsc/gsm_04_08.h>
+#include <openbsc/debug.h>
+#include <openbsc/mncc.h>
+#include <osmocore/talloc.h>
+#include <openbsc/gsm_data.h>
+#include <openbsc/transaction.h>
+#include <openbsc/rtp_proxy.h>
+
+void *tall_call_ctx;
+
+static LLIST_HEAD(call_list);
+
+static u_int32_t new_callref = 0x00000001;
+
+static void free_call(struct gsm_call *call)
+{
+ llist_del(&call->entry);
+ DEBUGP(DMNCC, "(call %x) Call removed.\n", call->callref);
+ talloc_free(call);
+}
+
+
+static struct gsm_call *get_call_ref(u_int32_t callref)
+{
+ struct gsm_call *callt;
+
+ llist_for_each_entry(callt, &call_list, entry) {
+ if (callt->callref == callref)
+ return callt;
+ }
+ return NULL;
+}
+
+
+/* on incoming call, look up database and send setup to remote subscr. */
+static int mncc_setup_ind(struct gsm_call *call, int msg_type,
+ struct gsm_mncc *setup)
+{
+ struct gsm_mncc mncc;
+ struct gsm_call *remote;
+
+ memset(&mncc, 0, sizeof(struct gsm_mncc));
+ mncc.callref = call->callref;
+
+ /* already have remote call */
+ if (call->remote_ref)
+ return 0;
+
+ /* transfer mode 1 would be packet mode, which was never specified */
+ if (setup->bearer_cap.mode != 0) {
+ LOGP(DMNCC, LOGL_NOTICE, "(call %x) We don't support "
+ "packet mode\n", call->callref);
+ mncc_set_cause(&mncc, GSM48_CAUSE_LOC_PRN_S_LU,
+ GSM48_CC_CAUSE_BEARER_CA_UNAVAIL);
+ goto out_reject;
+ }
+
+ /* we currently only do speech */
+ if (setup->bearer_cap.transfer != GSM_MNCC_BCAP_SPEECH) {
+ LOGP(DMNCC, LOGL_NOTICE, "(call %x) We only support "
+ "voice calls\n", call->callref);
+ mncc_set_cause(&mncc, GSM48_CAUSE_LOC_PRN_S_LU,
+ GSM48_CC_CAUSE_BEARER_CA_UNAVAIL);
+ goto out_reject;
+ }
+
+ /* create remote call */
+ if (!(remote = talloc(tall_call_ctx, struct gsm_call))) {
+ mncc_set_cause(&mncc, GSM48_CAUSE_LOC_PRN_S_LU,
+ GSM48_CC_CAUSE_RESOURCE_UNAVAIL);
+ goto out_reject;
+ }
+ llist_add_tail(&remote->entry, &call_list);
+ remote->net = call->net;
+ remote->callref = new_callref++;
+ DEBUGP(DMNCC, "(call %x) Creating new remote instance %x.\n",
+ call->callref, remote->callref);
+
+ /* link remote call */
+ call->remote_ref = remote->callref;
+ remote->remote_ref = call->callref;
+
+ /* modify mode */
+ memset(&mncc, 0, sizeof(struct gsm_mncc));
+ mncc.callref = call->callref;
+ mncc.lchan_mode = GSM48_CMODE_SPEECH_EFR;
+ DEBUGP(DMNCC, "(call %x) Modify channel mode.\n", call->callref);
+ mncc_tx_to_cc(call->net, MNCC_LCHAN_MODIFY, &mncc);
+
+ /* send call proceeding */
+ memset(&mncc, 0, sizeof(struct gsm_mncc));
+ mncc.callref = call->callref;
+ DEBUGP(DMNCC, "(call %x) Accepting call.\n", call->callref);
+ mncc_tx_to_cc(call->net, MNCC_CALL_PROC_REQ, &mncc);
+
+ /* send setup to remote */
+// setup->fields |= MNCC_F_SIGNAL;
+// setup->signal = GSM48_SIGNAL_DIALTONE;
+ setup->callref = remote->callref;
+ DEBUGP(DMNCC, "(call %x) Forwarding SETUP to remote.\n", call->callref);
+ return mncc_tx_to_cc(remote->net, MNCC_SETUP_REQ, setup);
+
+out_reject:
+ mncc_tx_to_cc(call->net, MNCC_REJ_REQ, &mncc);
+ free_call(call);
+ return 0;
+}
+
+static int mncc_alert_ind(struct gsm_call *call, int msg_type,
+ struct gsm_mncc *alert)
+{
+ struct gsm_call *remote;
+
+ /* send alerting to remote */
+ if (!(remote = get_call_ref(call->remote_ref)))
+ return 0;
+ alert->callref = remote->callref;
+ DEBUGP(DMNCC, "(call %x) Forwarding ALERT to remote.\n", call->callref);
+ return mncc_tx_to_cc(remote->net, MNCC_ALERT_REQ, alert);
+}
+
+static int mncc_notify_ind(struct gsm_call *call, int msg_type,
+ struct gsm_mncc *notify)
+{
+ struct gsm_call *remote;
+
+ /* send notify to remote */
+ if (!(remote = get_call_ref(call->remote_ref)))
+ return 0;
+ notify->callref = remote->callref;
+ DEBUGP(DMNCC, "(call %x) Forwarding NOTIF to remote.\n", call->callref);
+ return mncc_tx_to_cc(remote->net, MNCC_NOTIFY_REQ, notify);
+}
+
+static int mncc_setup_cnf(struct gsm_call *call, int msg_type,
+ struct gsm_mncc *connect)
+{
+ struct gsm_mncc connect_ack, frame_recv;
+ struct gsm_network *net = call->net;
+ struct gsm_call *remote;
+ u_int32_t refs[2];
+
+ /* acknowledge connect */
+ memset(&connect_ack, 0, sizeof(struct gsm_mncc));
+ connect_ack.callref = call->callref;
+ DEBUGP(DMNCC, "(call %x) Acknowledge SETUP.\n", call->callref);
+ mncc_tx_to_cc(call->net, MNCC_SETUP_COMPL_REQ, &connect_ack);
+
+ /* send connect message to remote */
+ if (!(remote = get_call_ref(call->remote_ref)))
+ return 0;
+ connect->callref = remote->callref;
+ DEBUGP(DMNCC, "(call %x) Sending CONNECT to remote.\n", call->callref);
+ mncc_tx_to_cc(remote->net, MNCC_SETUP_RSP, connect);
+
+ /* bridge tch */
+ refs[0] = call->callref;
+ refs[1] = call->remote_ref;
+ DEBUGP(DMNCC, "(call %x) Bridging with remote.\n", call->callref);
+
+ /* in direct mode, we always have to bridge the channels */
+ if (ipacc_rtp_direct)
+ return mncc_tx_to_cc(call->net, MNCC_BRIDGE, refs);
+
+ /* proxy mode */
+ if (!net->handover.active) {
+ /* in the no-handover case, we can bridge, i.e. use
+ * the old RTP proxy code */
+ return mncc_tx_to_cc(call->net, MNCC_BRIDGE, refs);
+ } else {
+ /* in case of handover, we need to re-write the RTP
+ * SSRC, sequence and timestamp values and thus
+ * need to enable RTP receive for both directions */
+ memset(&frame_recv, 0, sizeof(struct gsm_mncc));
+ frame_recv.callref = call->callref;
+ mncc_tx_to_cc(call->net, MNCC_FRAME_RECV, &frame_recv);
+ frame_recv.callref = call->remote_ref;
+ return mncc_tx_to_cc(call->net, MNCC_FRAME_RECV, &frame_recv);
+ }
+}
+
+static int mncc_disc_ind(struct gsm_call *call, int msg_type,
+ struct gsm_mncc *disc)
+{
+ struct gsm_call *remote;
+
+ /* send release */
+ DEBUGP(DMNCC, "(call %x) Releasing call with cause %d\n",
+ call->callref, disc->cause.value);
+ mncc_tx_to_cc(call->net, MNCC_REL_REQ, disc);
+
+ /* send disc to remote */
+ if (!(remote = get_call_ref(call->remote_ref))) {
+ return 0;
+ }
+ disc->callref = remote->callref;
+ DEBUGP(DMNCC, "(call %x) Disconnecting remote with cause %d\n",
+ remote->callref, disc->cause.value);
+ return mncc_tx_to_cc(remote->net, MNCC_DISC_REQ, disc);
+}
+
+static int mncc_rel_ind(struct gsm_call *call, int msg_type, struct gsm_mncc *rel)
+{
+ struct gsm_call *remote;
+
+ /* send release to remote */
+ if (!(remote = get_call_ref(call->remote_ref))) {
+ free_call(call);
+ return 0;
+ }
+
+ rel->callref = remote->callref;
+ DEBUGP(DMNCC, "(call %x) Releasing remote with cause %d\n",
+ call->callref, rel->cause.value);
+
+ /*
+ * Release this side of the call right now. Otherwise we end up
+ * in this method for the other call and will also try to release
+ * it and then we will end up with a double free and a crash
+ */
+ free_call(call);
+ mncc_tx_to_cc(remote->net, MNCC_REL_REQ, rel);
+
+ return 0;
+}
+
+static int mncc_rel_cnf(struct gsm_call *call, int msg_type, struct gsm_mncc *rel)
+{
+ free_call(call);
+ return 0;
+}
+
+/* receiving a TCH/F frame from the BSC code */
+static int mncc_rcv_tchf(struct gsm_call *call, int msg_type,
+ struct gsm_data_frame *dfr)
+{
+ struct gsm_trans *remote_trans;
+
+ remote_trans = trans_find_by_callref(call->net, call->remote_ref);
+
+ /* this shouldn't really happen */
+ if (!remote_trans || !remote_trans->conn) {
+ LOGP(DMNCC, LOGL_ERROR, "No transaction or transaction without lchan?!?\n");
+ return -EIO;
+ }
+
+ /* RTP socket of remote end has meanwhile died */
+ if (!remote_trans->conn->lchan->abis_ip.rtp_socket)
+ return -EIO;
+
+ return rtp_send_frame(remote_trans->conn->lchan->abis_ip.rtp_socket, dfr);
+}
+
+
+/* Internal MNCC handler input function (from CC -> MNCC -> here) */
+int int_mncc_recv(struct gsm_network *net, struct msgb *msg)
+{
+ void *arg = msgb_data(msg);
+ struct gsm_mncc *data = arg;
+ int msg_type = data->msg_type;
+ int callref;
+ struct gsm_call *call = NULL, *callt;
+ int rc = 0;
+
+ /* Special messages */
+ switch(msg_type) {
+ }
+
+ /* find callref */
+ callref = data->callref;
+ llist_for_each_entry(callt, &call_list, entry) {
+ if (callt->callref == callref) {
+ call = callt;
+ break;
+ }
+ }
+
+ /* create callref, if setup is received */
+ if (!call) {
+ if (msg_type != MNCC_SETUP_IND)
+ goto out_free; /* drop */
+ /* create call */
+ if (!(call = talloc_zero(tall_call_ctx, struct gsm_call))) {
+ struct gsm_mncc rel;
+
+ memset(&rel, 0, sizeof(struct gsm_mncc));
+ rel.callref = callref;
+ mncc_set_cause(&rel, GSM48_CAUSE_LOC_PRN_S_LU,
+ GSM48_CC_CAUSE_RESOURCE_UNAVAIL);
+ mncc_tx_to_cc(net, MNCC_REL_REQ, &rel);
+ goto out_free;
+ }
+ llist_add_tail(&call->entry, &call_list);
+ call->net = net;
+ call->callref = callref;
+ DEBUGP(DMNCC, "(call %x) Call created.\n", call->callref);
+ }
+
+ switch (msg_type) {
+ case GSM_TCHF_FRAME:
+ case GSM_TCHF_FRAME_EFR:
+ break;
+ default:
+ DEBUGP(DMNCC, "(call %x) Received message %s\n", call->callref,
+ get_mncc_name(msg_type));
+ break;
+ }
+
+ switch(msg_type) {
+ case MNCC_SETUP_IND:
+ rc = mncc_setup_ind(call, msg_type, arg);
+ break;
+ case MNCC_SETUP_CNF:
+ rc = mncc_setup_cnf(call, msg_type, arg);
+ break;
+ case MNCC_SETUP_COMPL_IND:
+ break;
+ case MNCC_CALL_CONF_IND:
+ /* we now need to MODIFY the channel */
+ data->lchan_mode = GSM48_CMODE_SPEECH_EFR;
+ mncc_tx_to_cc(call->net, MNCC_LCHAN_MODIFY, data);
+ break;
+ case MNCC_ALERT_IND:
+ rc = mncc_alert_ind(call, msg_type, arg);
+ break;
+ case MNCC_NOTIFY_IND:
+ rc = mncc_notify_ind(call, msg_type, arg);
+ break;
+ case MNCC_DISC_IND:
+ rc = mncc_disc_ind(call, msg_type, arg);
+ break;
+ case MNCC_REL_IND:
+ case MNCC_REJ_IND:
+ rc = mncc_rel_ind(call, msg_type, arg);
+ break;
+ case MNCC_REL_CNF:
+ rc = mncc_rel_cnf(call, msg_type, arg);
+ break;
+ case MNCC_FACILITY_IND:
+ break;
+ case MNCC_START_DTMF_IND:
+ break;
+ case MNCC_STOP_DTMF_IND:
+ break;
+ case MNCC_MODIFY_IND:
+ mncc_set_cause(data, GSM48_CAUSE_LOC_PRN_S_LU,
+ GSM48_CC_CAUSE_SERV_OPT_UNIMPL);
+ DEBUGP(DMNCC, "(call %x) Rejecting MODIFY with cause %d\n",
+ call->callref, data->cause.value);
+ rc = mncc_tx_to_cc(net, MNCC_MODIFY_REJ, data);
+ break;
+ case MNCC_MODIFY_CNF:
+ break;
+ case MNCC_HOLD_IND:
+ mncc_set_cause(data, GSM48_CAUSE_LOC_PRN_S_LU,
+ GSM48_CC_CAUSE_SERV_OPT_UNIMPL);
+ DEBUGP(DMNCC, "(call %x) Rejecting HOLD with cause %d\n",
+ call->callref, data->cause.value);
+ rc = mncc_tx_to_cc(net, MNCC_HOLD_REJ, data);
+ break;
+ case MNCC_RETRIEVE_IND:
+ mncc_set_cause(data, GSM48_CAUSE_LOC_PRN_S_LU,
+ GSM48_CC_CAUSE_SERV_OPT_UNIMPL);
+ DEBUGP(DMNCC, "(call %x) Rejecting RETRIEVE with cause %d\n",
+ call->callref, data->cause.value);
+ rc = mncc_tx_to_cc(net, MNCC_RETRIEVE_REJ, data);
+ break;
+ case GSM_TCHF_FRAME:
+ case GSM_TCHF_FRAME_EFR:
+ rc = mncc_rcv_tchf(call, msg_type, arg);
+ break;
+ default:
+ LOGP(DMNCC, LOGL_NOTICE, "(call %x) Message unhandled\n", callref);
+ break;
+ }
+
+out_free:
+ talloc_free(msg);
+
+ return rc;
+}
diff --git a/src/libmsc/mncc_sock.c b/src/libmsc/mncc_sock.c
new file mode 100644
index 00000000..2eef7c86
--- /dev/null
+++ b/src/libmsc/mncc_sock.c
@@ -0,0 +1,337 @@
+/* mncc_sock.c: Tie the MNCC interface to a unix domain socket */
+
+/* (C) 2008-2010 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2009 by Andreas Eversberg <Andreas.Eversberg@versatel.de>
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <assert.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+#include <osmocore/talloc.h>
+#include <osmocore/select.h>
+#include <osmocore/protocol/gsm_04_08.h>
+
+#include <openbsc/debug.h>
+#include <openbsc/mncc.h>
+#include <openbsc/gsm_data.h>
+
+struct mncc_sock_state {
+ struct gsm_network *net;
+ struct bsc_fd listen_bfd; /* fd for listen socket */
+ struct bsc_fd conn_bfd; /* fd for connection to lcr */
+};
+
+/* FIXME: avoid this */
+static struct mncc_sock_state *g_state;
+
+/* input from CC code into mncc_sock */
+int mncc_sock_from_cc(struct gsm_network *net, struct msgb *msg)
+{
+ struct gsm_mncc *mncc_in = (struct gsm_mncc *) msgb_data(msg);
+ int msg_type = mncc_in->msg_type;
+
+ /* Check if we currently have a MNCC handler connected */
+ if (g_state->conn_bfd.fd < 0) {
+ LOGP(DMNCC, LOGL_ERROR, "mncc_sock receives %s for external CC app "
+ "but socket is gone\n", get_mncc_name(msg_type));
+ if (msg_type != GSM_TCHF_FRAME &&
+ msg_type != GSM_TCHF_FRAME_EFR) {
+ /* release the request */
+ struct gsm_mncc mncc_out;
+ memset(&mncc_out, 0, sizeof(mncc_out));
+ mncc_out.callref = mncc_in->callref;
+ mncc_set_cause(&mncc_out, GSM48_CAUSE_LOC_PRN_S_LU,
+ GSM48_CC_CAUSE_TEMP_FAILURE);
+ mncc_tx_to_cc(net, MNCC_REL_REQ, &mncc_out);
+ }
+ /* free the original message */
+ msgb_free(msg);
+ return -1;
+ }
+
+ /* FIXME: check for some maximum queue depth? */
+
+ /* Actually enqueue the message and mark socket write need */
+ msgb_enqueue(&net->upqueue, msg);
+ g_state->conn_bfd.when |= BSC_FD_WRITE;
+ return 0;
+}
+
+void mncc_sock_write_pending(void)
+{
+ g_state->conn_bfd.when |= BSC_FD_WRITE;
+}
+
+/* FIXME: move this to libosmocore */
+int osmo_unixsock_listen(struct bsc_fd *bfd, int type, const char *path);
+
+static void mncc_sock_close(struct mncc_sock_state *state)
+{
+ struct bsc_fd *bfd = &state->conn_bfd;
+
+ LOGP(DMNCC, LOGL_NOTICE, "MNCC Socket has LOST connection\n");
+
+ close(bfd->fd);
+ bfd->fd = -1;
+ bsc_unregister_fd(bfd);
+
+ /* re-enable the generation of ACCEPT for new connections */
+ state->listen_bfd.when |= BSC_FD_READ;
+
+ /* FIXME: make sure we don't enqueue anymore */
+
+ /* release all exisitng calls */
+ gsm0408_clear_all_trans(state->net, GSM48_PDISC_CC);
+
+ /* flush the queue */
+ while (!llist_empty(&state->net->upqueue)) {
+ struct msgb *msg = msgb_dequeue(&state->net->upqueue);
+ msgb_free(msg);
+ }
+}
+
+static int mncc_sock_read(struct bsc_fd *bfd)
+{
+ struct mncc_sock_state *state = (struct mncc_sock_state *)bfd->data;
+ struct gsm_mncc *mncc_prim;
+ struct msgb *msg;
+ int rc;
+
+ msg = msgb_alloc(sizeof(*mncc_prim)+256, "mncc_sock_rx");
+ if (!msg)
+ return -ENOMEM;
+
+ mncc_prim = (struct gsm_mncc *) msg->tail;
+
+ rc = recv(bfd->fd, msg->tail, msgb_tailroom(msg), 0);
+ if (rc == 0)
+ goto close;
+
+ if (rc < 0) {
+ if (errno == EAGAIN)
+ return 0;
+ goto close;
+ }
+
+ rc = mncc_tx_to_cc(state->net, mncc_prim->msg_type, mncc_prim);
+
+ /* as we always synchronously process the message in mncc_send() and
+ * its callbacks, we can free the message here. */
+ msgb_free(msg);
+
+ return rc;
+
+close:
+ msgb_free(msg);
+ mncc_sock_close(state);
+ return -1;
+}
+
+static int mncc_sock_write(struct bsc_fd *bfd)
+{
+ struct mncc_sock_state *state = bfd->data;
+ struct gsm_network *net = state->net;
+ int rc;
+
+ while (!llist_empty(&net->upqueue)) {
+ struct msgb *msg, *msg2;
+ struct gsm_mncc *mncc_prim;
+
+ /* peek at the beginning of the queue */
+ msg = llist_entry(net->upqueue.next, struct msgb, list);
+ mncc_prim = (struct gsm_mncc *)msg->data;
+
+ bfd->when &= ~BSC_FD_WRITE;
+
+ /* try to send it over the socket */
+ rc = write(bfd->fd, msgb_data(msg), msgb_length(msg));
+ if (rc == 0)
+ goto close;
+ if (rc < 0) {
+ if (errno == EAGAIN) {
+ bfd->when |= BSC_FD_WRITE;
+ break;
+ }
+ goto close;
+ }
+ /* _after_ we send it, we can deueue */
+ msg2 = msgb_dequeue(&net->upqueue);
+ assert(msg == msg2);
+ msgb_free(msg);
+ }
+ return 0;
+
+close:
+ mncc_sock_close(state);
+
+ return -1;
+}
+
+static int mncc_sock_cb(struct bsc_fd *bfd, unsigned int flags)
+{
+ int rc = 0;
+
+ if (flags & BSC_FD_READ)
+ rc = mncc_sock_read(bfd);
+ if (rc < 0)
+ return rc;
+
+ if (flags & BSC_FD_WRITE)
+ rc = mncc_sock_write(bfd);
+
+ return rc;
+}
+
+/* accept a new connection */
+static int mncc_sock_accept(struct bsc_fd *bfd, unsigned int flags)
+{
+ struct mncc_sock_state *state = (struct mncc_sock_state *)bfd->data;
+ struct bsc_fd *conn_bfd = &state->conn_bfd;
+ struct sockaddr_un un_addr;
+ socklen_t len;
+ int rc;
+
+ len = sizeof(un_addr);
+ rc = accept(bfd->fd, (struct sockaddr *) &un_addr, &len);
+ if (rc < 0) {
+ LOGP(DMNCC, LOGL_ERROR, "Failed to accept a new connection\n");
+ return -1;
+ }
+
+ if (conn_bfd->fd >= 0) {
+ LOGP(DMNCC, LOGL_NOTICE, "MNCC app connects but we already have "
+ "another active connection ?!?\n");
+ /* We already have one MNCC app connected, this is all we support */
+ state->listen_bfd.when &= ~BSC_FD_READ;
+ close(rc);
+ return 0;
+ }
+
+ conn_bfd->fd = rc;
+ conn_bfd->when = BSC_FD_READ;
+ conn_bfd->cb = mncc_sock_cb;
+ conn_bfd->data = state;
+
+ if (bsc_register_fd(conn_bfd) != 0) {
+ LOGP(DMNCC, LOGL_ERROR, "Failed to register new connection fd\n");
+ close(conn_bfd->fd);
+ conn_bfd->fd = -1;
+ state->listen_bfd.when |= ~BSC_FD_READ;
+ return -1;
+ }
+
+ LOGP(DMNCC, LOGL_NOTICE, "MNCC Socket has connection with external "
+ "call control application\n");
+
+ return 0;
+}
+
+
+int mncc_sock_init(struct gsm_network *net)
+{
+ struct mncc_sock_state *state;
+ struct bsc_fd *bfd;
+ int rc;
+
+ state = talloc_zero(tall_bsc_ctx, struct mncc_sock_state);
+ if (!state)
+ return -ENOMEM;
+
+ state->net = net;
+ state->conn_bfd.fd = -1;
+
+ bfd = &state->listen_bfd;
+
+ rc = osmo_unixsock_listen(bfd, SOCK_SEQPACKET, "/tmp/bsc_mncc");
+ if (rc < 0) {
+ LOGP(DMNCC, LOGL_ERROR, "Could not create unix socket: %s\n",
+ strerror(errno));
+ talloc_free(state);
+ return rc;
+ }
+
+ bfd->when = BSC_FD_READ;
+ bfd->cb = mncc_sock_accept;
+ bfd->data = state;
+
+ rc = bsc_register_fd(bfd);
+ if (rc < 0) {
+ LOGP(DMNCC, LOGL_ERROR, "Could not register listen fd: %d\n", rc);
+ close(bfd->fd);
+ talloc_free(state);
+ return rc;
+ }
+
+ g_state = state;
+
+ return 0;
+}
+
+/* FIXME: move this to libosmocore */
+int osmo_unixsock_listen(struct bsc_fd *bfd, int type, const char *path)
+{
+ struct sockaddr_un local;
+ unsigned int namelen;
+ int rc;
+
+ bfd->fd = socket(AF_UNIX, type, 0);
+
+ if (bfd->fd < 0) {
+ fprintf(stderr, "Failed to create Unix Domain Socket.\n");
+ return -1;
+ }
+
+ local.sun_family = AF_UNIX;
+ strncpy(local.sun_path, path, sizeof(local.sun_path));
+ local.sun_path[sizeof(local.sun_path) - 1] = '\0';
+ unlink(local.sun_path);
+
+ /* we use the same magic that X11 uses in Xtranssock.c for
+ * calculating the proper length of the sockaddr */
+#if defined(BSD44SOCKETS) || defined(__UNIXWARE__)
+ local.sun_len = strlen(local.sun_path);
+#endif
+#if defined(BSD44SOCKETS) || defined(SUN_LEN)
+ namelen = SUN_LEN(&local);
+#else
+ namelen = strlen(local.sun_path) +
+ offsetof(struct sockaddr_un, sun_path);
+#endif
+
+ rc = bind(bfd->fd, (struct sockaddr *) &local, namelen);
+ if (rc != 0) {
+ fprintf(stderr, "Failed to bind the unix domain socket. '%s'\n",
+ local.sun_path);
+ return -1;
+ }
+
+ if (listen(bfd->fd, 0) != 0) {
+ fprintf(stderr, "Failed to listen.\n");
+ return -1;
+ }
+
+ return 0;
+}
diff --git a/src/libmsc/osmo_msc.c b/src/libmsc/osmo_msc.c
new file mode 100644
index 00000000..8c86dcc8
--- /dev/null
+++ b/src/libmsc/osmo_msc.c
@@ -0,0 +1,104 @@
+/* main MSC management code... */
+
+/*
+ * (C) 2010 by Holger Hans Peter Freyther <zecke@selfish.org>
+ * (C) 2010 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 <openbsc/bsc_api.h>
+#include <openbsc/debug.h>
+#include <openbsc/transaction.h>
+
+#include <openbsc/gsm_04_11.h>
+
+static void msc_sapi_n_reject(struct gsm_subscriber_connection *conn, int dlci)
+{
+ int sapi = dlci & 0x7;
+
+ if (sapi == UM_SAPI_SMS)
+ gsm411_sapi_n_reject(conn);
+}
+
+static int msc_clear_request(struct gsm_subscriber_connection *conn, uint32_t cause)
+{
+ gsm0408_clear_request(conn, cause);
+ if (conn->put_channel) {
+ conn->put_channel = 0;
+ subscr_put_channel(conn->subscr);
+ }
+ return 1;
+}
+
+static int msc_compl_l3(struct gsm_subscriber_connection *conn, struct msgb *msg,
+ uint16_t chosen_channel)
+{
+ gsm0408_new_conn(conn);
+ gsm0408_dispatch(conn, msg);
+
+ /* TODO: do better */
+ return BSC_API_CONN_POL_ACCEPT;
+}
+
+static void msc_dtap(struct gsm_subscriber_connection *conn, uint8_t link_id, struct msgb *msg)
+{
+ gsm0408_dispatch(conn, msg);
+}
+
+static struct bsc_api msc_handler = {
+ .sapi_n_reject = msc_sapi_n_reject,
+ .clear_request = msc_clear_request,
+ .compl_l3 = msc_compl_l3,
+ .dtap = msc_dtap,
+};
+
+struct bsc_api *msc_bsc_api() {
+ return &msc_handler;
+}
+
+/* lchan release handling */
+void msc_release_connection(struct gsm_subscriber_connection *conn)
+{
+ struct gsm_trans *trans;
+
+ /* skip when we are in release, e.g. due an error */
+ if (conn->in_release)
+ return;
+
+ /* skip releasing of silent calls as they have no transaction */
+ if (conn->silent_call)
+ return;
+
+ /* check if there is a pending operation */
+ if (conn->loc_operation || conn->sec_operation || conn->anch_operation)
+ return;
+
+ llist_for_each_entry(trans, &conn->bts->network->trans_list, entry) {
+ if (trans->conn == conn)
+ return;
+ }
+
+ /* no more connections, asking to release the channel */
+ conn->in_release = 1;
+ gsm0808_clear(conn);
+ if (conn->put_channel) {
+ conn->put_channel = 0;
+ subscr_put_channel(conn->subscr);
+ }
+ subscr_con_free(conn);
+}
diff --git a/src/libmsc/rrlp.c b/src/libmsc/rrlp.c
new file mode 100644
index 00000000..ae5ca478
--- /dev/null
+++ b/src/libmsc/rrlp.c
@@ -0,0 +1,105 @@
+/* Radio Resource LCS (Location) Protocol, GMS TS 04.31 */
+
+/* (C) 2009 by Harald Welte <laforge@gnumonks.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 <sys/types.h>
+
+#include <openbsc/gsm_04_08.h>
+#include <openbsc/signal.h>
+#include <openbsc/gsm_subscriber.h>
+#include <openbsc/chan_alloc.h>
+
+/* RRLP msPositionReq, nsBased,
+ * Accuracy=60, Method=gps, ResponseTime=2, oneSet */
+static const u_int8_t ms_based_pos_req[] = { 0x40, 0x01, 0x78, 0xa8 };
+
+/* RRLP msPositionReq, msBasedPref,
+ Accuracy=60, Method=gpsOrEOTD, ResponseTime=5, multipleSets */
+static const u_int8_t ms_pref_pos_req[] = { 0x40, 0x02, 0x79, 0x50 };
+
+/* RRLP msPositionReq, msAssistedPref,
+ Accuracy=60, Method=gpsOrEOTD, ResponseTime=5, multipleSets */
+static const u_int8_t ass_pref_pos_req[] = { 0x40, 0x03, 0x79, 0x50 };
+
+static int send_rrlp_req(struct gsm_subscriber_connection *conn)
+{
+ struct gsm_network *net = conn->bts->network;
+ const u_int8_t *req;
+
+ switch (net->rrlp.mode) {
+ case RRLP_MODE_MS_BASED:
+ req = ms_based_pos_req;
+ break;
+ case RRLP_MODE_MS_PREF:
+ req = ms_pref_pos_req;
+ break;
+ case RRLP_MODE_ASS_PREF:
+ req = ass_pref_pos_req;
+ break;
+ case RRLP_MODE_NONE:
+ default:
+ return 0;
+ }
+
+ return gsm48_send_rr_app_info(conn, 0x00,
+ sizeof(ms_based_pos_req), req);
+}
+
+static int subscr_sig_cb(unsigned int subsys, unsigned int signal,
+ void *handler_data, void *signal_data)
+{
+ struct gsm_subscriber *subscr;
+ struct gsm_subscriber_connection *conn;
+
+ switch (signal) {
+ case S_SUBSCR_ATTACHED:
+ /* A subscriber has attached. */
+ subscr = signal_data;
+ conn = connection_for_subscr(subscr);
+ if (!conn)
+ break;
+ send_rrlp_req(conn);
+ break;
+ }
+ return 0;
+}
+
+static int paging_sig_cb(unsigned int subsys, unsigned int signal,
+ void *handler_data, void *signal_data)
+{
+ struct paging_signal_data *psig_data = signal_data;
+
+ switch (signal) {
+ case S_PAGING_SUCCEEDED:
+ /* A subscriber has attached. */
+ send_rrlp_req(psig_data->conn);
+ break;
+ case S_PAGING_EXPIRED:
+ break;
+ }
+ return 0;
+}
+
+void on_dso_load_rrlp(void)
+{
+ register_signal_handler(SS_SUBSCR, subscr_sig_cb, NULL);
+ register_signal_handler(SS_PAGING, paging_sig_cb, NULL);
+}
diff --git a/src/libmsc/silent_call.c b/src/libmsc/silent_call.c
new file mode 100644
index 00000000..64ebdfdb
--- /dev/null
+++ b/src/libmsc/silent_call.c
@@ -0,0 +1,143 @@
+/* GSM silent call feature */
+
+/*
+ * (C) 2009 by Harald Welte <laforge@gnumonks.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 <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include <osmocore/msgb.h>
+#include <openbsc/signal.h>
+#include <openbsc/debug.h>
+#include <openbsc/paging.h>
+#include <openbsc/gsm_data.h>
+#include <openbsc/gsm_subscriber.h>
+#include <openbsc/abis_rsl.h>
+#include <openbsc/chan_alloc.h>
+#include <openbsc/osmo_msc.h>
+
+/* paging of the requested subscriber has completed */
+static int paging_cb_silent(unsigned int hooknum, unsigned int event,
+ struct msgb *msg, void *_conn, void *_data)
+{
+ struct gsm_subscriber_connection *conn = _conn;
+ struct scall_signal_data sigdata;
+ int rc = 0;
+
+ if (hooknum != GSM_HOOK_RR_PAGING)
+ return -EINVAL;
+
+ DEBUGP(DSMS, "paging_cb_silent: ");
+
+ sigdata.conn = conn;
+ sigdata.data = _data;
+
+ switch (event) {
+ case GSM_PAGING_SUCCEEDED:
+ DEBUGPC(DSMS, "success, using Timeslot %u on ARFCN %u\n",
+ conn->lchan->ts->nr, conn->lchan->ts->trx->arfcn);
+ conn->silent_call = 1;
+ /* increment lchan reference count */
+ dispatch_signal(SS_SCALL, S_SCALL_SUCCESS, &sigdata);
+ break;
+ case GSM_PAGING_EXPIRED:
+ case GSM_PAGING_BUSY:
+ case GSM_PAGING_OOM:
+ DEBUGP(DSMS, "expired\n");
+ dispatch_signal(SS_SCALL, S_SCALL_EXPIRED, &sigdata);
+ break;
+ default:
+ rc = -EINVAL;
+ break;
+ }
+
+ return rc;
+}
+
+/* receive a layer 3 message from a silent call */
+int silent_call_rx(struct gsm_subscriber_connection *conn, struct msgb *msg)
+{
+ /* FIXME: do something like sending it through a UDP port */
+ return 0;
+}
+
+struct msg_match {
+ u_int8_t pdisc;
+ u_int8_t msg_type;
+};
+
+/* list of messages that are handled inside OpenBSC, even in a silent call */
+static const struct msg_match silent_call_accept[] = {
+ { GSM48_PDISC_MM, GSM48_MT_MM_LOC_UPD_REQUEST },
+ { GSM48_PDISC_MM, GSM48_MT_MM_CM_SERV_REQ },
+};
+
+/* decide if we need to reroute a message as part of a silent call */
+int silent_call_reroute(struct gsm_subscriber_connection *conn, struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ u_int8_t pdisc = gh->proto_discr & 0x0f;
+ int i;
+
+ /* if we're not part of a silent call, never reroute */
+ if (!conn->silent_call)
+ return 0;
+
+ /* check if we are a special message that is handled in openbsc */
+ for (i = 0; i < ARRAY_SIZE(silent_call_accept); i++) {
+ if (silent_call_accept[i].pdisc == pdisc &&
+ silent_call_accept[i].msg_type == gh->msg_type)
+ return 0;
+ }
+
+ /* otherwise, reroute */
+ return 1;
+}
+
+
+/* initiate a silent call with a given subscriber */
+int gsm_silent_call_start(struct gsm_subscriber *subscr, void *data, int type)
+{
+ int rc;
+
+ rc = paging_request(subscr->net, subscr, type,
+ paging_cb_silent, data);
+ return rc;
+}
+
+/* end a silent call with a given subscriber */
+int gsm_silent_call_stop(struct gsm_subscriber *subscr)
+{
+ struct gsm_subscriber_connection *conn;
+
+ conn = connection_for_subscr(subscr);
+ if (!conn)
+ return -EINVAL;
+
+ /* did we actually establish a silent call for this guy? */
+ if (!conn->silent_call)
+ return -EINVAL;
+
+ conn->silent_call = 0;
+ msc_release_connection(conn);
+
+ return 0;
+}
diff --git a/src/libmsc/sms_queue.c b/src/libmsc/sms_queue.c
new file mode 100644
index 00000000..079755d2
--- /dev/null
+++ b/src/libmsc/sms_queue.c
@@ -0,0 +1,479 @@
+/* SMS queue to continously attempt to deliver SMS */
+/*
+ * (C) 2010 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/>.
+ *
+ */
+
+/**
+ * The difficulty of such a queue is to send a lot of SMS without
+ * overloading the paging subsystem and the database and other users
+ * of the MSC. To make the best use we would need to know the number
+ * of pending paging requests, then throttle the number of SMS we
+ * want to send and such.
+ * We will start with a very simple SMS Queue and then try to speed
+ * things up by collecting data from other parts of the system.
+ */
+
+#include <openbsc/sms_queue.h>
+#include <openbsc/chan_alloc.h>
+#include <openbsc/db.h>
+#include <openbsc/debug.h>
+#include <openbsc/gsm_data.h>
+#include <openbsc/gsm_04_11.h>
+#include <openbsc/gsm_subscriber.h>
+#include <openbsc/signal.h>
+
+#include <osmocore/talloc.h>
+
+#include <osmocom/vty/vty.h>
+
+/*
+ * One pending SMS that we wait for.
+ */
+struct gsm_sms_pending {
+ struct llist_head entry;
+
+ struct gsm_subscriber *subscr;
+ unsigned long long sms_id;
+ int failed_attempts;
+ int resend;
+};
+
+struct gsm_sms_queue {
+ struct timer_list resend_pending;
+ struct timer_list push_queue;
+ struct gsm_network *network;
+ int max_fail;
+ int max_pending;
+ int pending;
+
+ struct llist_head pending_sms;
+ unsigned long long last_subscr_id;
+};
+
+static int sms_subscr_cb(unsigned int, unsigned int, void *, void *);
+static int sms_sms_cb(unsigned int, unsigned int, void *, void *);
+
+static struct gsm_sms_pending *sms_find_pending(struct gsm_sms_queue *smsq,
+ struct gsm_sms *sms)
+{
+ struct gsm_sms_pending *pending;
+
+ llist_for_each_entry(pending, &smsq->pending_sms, entry) {
+ if (pending->sms_id == sms->id)
+ return pending;
+ }
+
+ return NULL;
+}
+
+static int sms_is_in_pending(struct gsm_sms_queue *smsq, struct gsm_sms *sms)
+{
+ return sms_find_pending(smsq, sms) != NULL;
+}
+
+static int sms_subscriber_is_pending(struct gsm_sms_queue *smsq,
+ struct gsm_subscriber *subscr)
+{
+ struct gsm_sms_pending *pending;
+
+ llist_for_each_entry(pending, &smsq->pending_sms, entry) {
+ if (pending->subscr == subscr)
+ return 1;
+ }
+
+ return 0;
+}
+
+static struct gsm_sms_pending *sms_pending_from(struct gsm_sms_queue *smsq,
+ struct gsm_sms *sms)
+{
+ struct gsm_sms_pending *pending;
+
+ pending = talloc_zero(smsq, struct gsm_sms_pending);
+ if (!pending)
+ return NULL;
+
+ pending->subscr = subscr_get(sms->receiver);
+ pending->sms_id = sms->id;
+ return pending;
+}
+
+static void sms_pending_free(struct gsm_sms_pending *pending)
+{
+ subscr_put(pending->subscr);
+ llist_del(&pending->entry);
+ talloc_free(pending);
+}
+
+static void sms_pending_resend(struct gsm_sms_pending *pending)
+{
+ struct gsm_sms_queue *smsq;
+ LOGP(DSMS, LOGL_DEBUG,
+ "Scheduling resend of SMS %llu.\n", pending->sms_id);
+
+ pending->resend = 1;
+
+ smsq = pending->subscr->net->sms_queue;
+ if (bsc_timer_pending(&smsq->resend_pending))
+ return;
+
+ bsc_schedule_timer(&smsq->resend_pending, 1, 0);
+}
+
+static void sms_pending_failed(struct gsm_sms_pending *pending, int paging_error)
+{
+ struct gsm_sms_queue *smsq;
+
+ LOGP(DSMS, LOGL_NOTICE, "Sending SMS %llu failed %d times.\n",
+ pending->sms_id, pending->failed_attempts);
+
+ smsq = pending->subscr->net->sms_queue;
+ if (++pending->failed_attempts < smsq->max_fail)
+ return sms_pending_resend(pending);
+
+ if (paging_error) {
+ LOGP(DSMS, LOGL_NOTICE,
+ "Subscriber %llu is not reachable. Setting LAC=0.\n", pending->subscr->id);
+ pending->subscr->lac = GSM_LAC_RESERVED_DETACHED;
+ db_sync_subscriber(pending->subscr);
+
+ /* Workaround a failing sync */
+ db_subscriber_update(pending->subscr);
+ }
+
+ sms_pending_free(pending);
+ smsq->pending -= 1;
+ sms_queue_trigger(smsq);
+}
+
+/*
+ * Resend all SMS that are scheduled for a resend. This is done to
+ * avoid an immediate failure.
+ */
+static void sms_resend_pending(void *_data)
+{
+ struct gsm_sms_pending *pending, *tmp;
+ struct gsm_sms_queue *smsq = _data;
+
+ llist_for_each_entry_safe(pending, tmp, &smsq->pending_sms, entry) {
+ struct gsm_sms *sms;
+ if (!pending->resend)
+ continue;
+
+ sms = db_sms_get(smsq->network, pending->sms_id);
+
+ /* the sms is gone? Move to the next */
+ if (!sms) {
+ sms_pending_free(pending);
+ smsq->pending -= 1;
+ sms_queue_trigger(smsq);
+ } else {
+ pending->resend = 0;
+ gsm411_send_sms_subscr(sms->receiver, sms);
+ }
+ }
+}
+
+static struct gsm_sms *take_next_sms(struct gsm_sms_queue *smsq)
+{
+ struct gsm_sms *sms;
+
+ sms = db_sms_get_unsent_by_subscr(smsq->network, smsq->last_subscr_id, 10);
+ if (sms) {
+ smsq->last_subscr_id = sms->receiver->id + 1;
+ return sms;
+ }
+
+ /* need to wrap around */
+ smsq->last_subscr_id = 0;
+ sms = db_sms_get_unsent_by_subscr(smsq->network,
+ smsq->last_subscr_id, 10);
+ if (sms)
+ smsq->last_subscr_id = sms->receiver->id + 1;
+ return sms;
+}
+
+/**
+ * I will submit up to max_pending - pending SMS to the
+ * subsystem.
+ */
+static void sms_submit_pending(void *_data)
+{
+ struct gsm_sms_queue *smsq = _data;
+ int attempts = smsq->max_pending - smsq->pending;
+ int initialized = 0;
+ unsigned long long first_sub = 0;
+ int attempted = 0, rounds = 0;
+
+ LOGP(DSMS, LOGL_NOTICE, "Attempting to send %d SMS\n", attempts);
+
+ do {
+ struct gsm_sms_pending *pending;
+ struct gsm_sms *sms;
+
+
+ sms = take_next_sms(smsq);
+ if (!sms)
+ break;
+
+ rounds += 1;
+
+ /*
+ * This code needs to detect a loop. It assumes that no SMS
+ * will vanish during the time this is executed. We will remember
+ * the id of the first GSM subscriber we see and then will
+ * compare this. The Database code should make sure that we will
+ * see all other subscribers first before seeing this one again.
+ *
+ * It is always scary to have an infinite loop like this.
+ */
+ if (!initialized) {
+ first_sub = sms->receiver->id;
+ initialized = 1;
+ } else if (first_sub == sms->receiver->id) {
+ sms_free(sms);
+ break;
+ }
+
+ /* no need to send a pending sms */
+ if (sms_is_in_pending(smsq, sms)) {
+ LOGP(DSMS, LOGL_DEBUG,
+ "SMSqueue with pending sms: %llu. Skipping\n", sms->id);
+ sms_free(sms);
+ continue;
+ }
+
+ /* no need to send a SMS with the same receiver */
+ if (sms_subscriber_is_pending(smsq, sms->receiver)) {
+ LOGP(DSMS, LOGL_DEBUG,
+ "SMSqueue with pending sub: %llu. Skipping\n", sms->receiver->id);
+ sms_free(sms);
+ continue;
+ }
+
+ pending = sms_pending_from(smsq, sms);
+ if (!pending) {
+ LOGP(DSMS, LOGL_ERROR,
+ "Failed to create pending SMS entry.\n");
+ sms_free(sms);
+ continue;
+ }
+
+ attempted += 1;
+ smsq->pending += 1;
+ llist_add_tail(&pending->entry, &smsq->pending_sms);
+ gsm411_send_sms_subscr(sms->receiver, sms);
+ } while (attempted < attempts && rounds < 1000);
+
+ LOGP(DSMS, LOGL_DEBUG, "SMSqueue added %d messages in %d rounds\n", attempted, rounds);
+}
+
+/*
+ * Kick off the queue again.
+ */
+int sms_queue_trigger(struct gsm_sms_queue *smsq)
+{
+ if (bsc_timer_pending(&smsq->push_queue))
+ return 0;
+
+ bsc_schedule_timer(&smsq->push_queue, 1, 0);
+ return 0;
+}
+
+int sms_queue_start(struct gsm_network *network, int max_pending)
+{
+ struct gsm_sms_queue *sms = talloc_zero(network, struct gsm_sms_queue);
+ if (!sms) {
+ LOGP(DMSC, LOGL_ERROR, "Failed to create the SMS queue.\n");
+ return -1;
+ }
+
+ register_signal_handler(SS_SUBSCR, sms_subscr_cb, network);
+ register_signal_handler(SS_SMS, sms_sms_cb, network);
+
+ network->sms_queue = sms;
+ INIT_LLIST_HEAD(&sms->pending_sms);
+ sms->max_fail = 1;
+ sms->network = network;
+ sms->max_pending = max_pending;
+ sms->push_queue.data = sms;
+ sms->push_queue.cb = sms_submit_pending;
+ sms->resend_pending.data = sms;
+ sms->resend_pending.cb = sms_resend_pending;
+
+ sms_submit_pending(sms);
+
+ return 0;
+}
+
+static int sub_ready_for_sm(struct gsm_subscriber *subscr)
+{
+ struct gsm_subscriber_connection *conn;
+ struct gsm_sms *sms;
+
+ /* A subscriber has attached. Check if there are
+ * any pending SMS for him to be delivered */
+ conn = connection_for_subscr(subscr);
+ if (!conn)
+ return -1;
+ sms = db_sms_get_unsent_for_subscr(subscr);
+ if (!sms)
+ return -1;
+ gsm411_send_sms(conn, sms);
+ return 0;
+}
+
+static int sms_subscr_cb(unsigned int subsys, unsigned int signal,
+ void *handler_data, void *signal_data)
+{
+ struct gsm_subscriber *subscr = signal_data;
+
+ if (signal != S_SUBSCR_ATTACHED)
+ return 0;
+
+ /* this is readyForSM */
+ return sub_ready_for_sm(subscr);
+}
+
+static int sms_sms_cb(unsigned int subsys, unsigned int signal,
+ void *handler_data, void *signal_data)
+{
+ struct gsm_network *network = handler_data;
+ struct sms_signal_data *sig_sms = signal_data;
+ struct gsm_sms_pending *pending;
+
+ /* We got a new SMS and maybe should launch the queue again. */
+ if (signal == S_SMS_SUBMITTED || signal == S_SMS_SMMA) {
+ sms_queue_trigger(network->sms_queue);
+ return 0;
+ }
+
+ if (!sig_sms->sms)
+ return -1;
+
+
+ /*
+ * Find the entry of our queue. The SMS subsystem will submit
+ * sms that are not in our control as we just have a channel
+ * open anyway.
+ */
+ pending = sms_find_pending(network->sms_queue, sig_sms->sms);
+ if (!pending)
+ return 0;
+
+ switch (signal) {
+ case S_SMS_DELIVERED:
+ /*
+ * Create place for a new SMS but keep the pending data
+ * so we will not attempt to send the SMS for this subscriber
+ * as we still have an open channel and will attempt to submit
+ * SMS to it anyway.
+ */
+ network->sms_queue->pending -= 1;
+ sms_submit_pending(network->sms_queue);
+ sms_pending_free(pending);
+ break;
+ case S_SMS_MEM_EXCEEDED:
+ network->sms_queue->pending -= 1;
+ sms_pending_free(pending);
+ sms_queue_trigger(network->sms_queue);
+ break;
+ case S_SMS_UNKNOWN_ERROR:
+ /*
+ * There can be many reasons for this failure. E.g. the paging
+ * timed out, the subscriber was not paged at all, or there was
+ * a protocol error. The current strategy is to try sending the
+ * next SMS for busy/oom and to retransmit when we have paged.
+ *
+ * When the paging expires three times we will disable the
+ * subscriber. If we have some kind of other transmit error we
+ * should flag the SMS as bad.
+ */
+ switch (sig_sms->paging_result) {
+ case 0:
+ /* BAD SMS? */
+ db_sms_inc_deliver_attempts(sig_sms->sms);
+ sms_pending_failed(pending, 0);
+ break;
+ case GSM_PAGING_EXPIRED:
+ sms_pending_failed(pending, 1);
+ break;
+
+ case GSM_PAGING_OOM:
+ case GSM_PAGING_BUSY:
+ network->sms_queue->pending -= 1;
+ sms_pending_free(pending);
+ sms_queue_trigger(network->sms_queue);
+ break;
+ default:
+ LOGP(DSMS, LOGL_ERROR, "Unhandled result: %d\n",
+ sig_sms->paging_result);
+ }
+ break;
+ default:
+ LOGP(DSMS, LOGL_ERROR, "Unhandled result: %d\n",
+ sig_sms->paging_result);
+ }
+
+ return 0;
+}
+
+/* VTY helper functions */
+int sms_queue_stats(struct gsm_sms_queue *smsq, struct vty *vty)
+{
+ struct gsm_sms_pending *pending;
+
+ vty_out(vty, "SMSqueue with max_pending: %d pending: %d%s",
+ smsq->max_pending, smsq->pending, VTY_NEWLINE);
+
+ llist_for_each_entry(pending, &smsq->pending_sms, entry)
+ vty_out(vty, " SMS Pending for Subscriber: %llu SMS: %llu Failed: %d.%s",
+ pending->subscr->id, pending->sms_id,
+ pending->failed_attempts, VTY_NEWLINE);
+ return 0;
+}
+
+int sms_queue_set_max_pending(struct gsm_sms_queue *smsq, int max_pending)
+{
+ LOGP(DSMS, LOGL_NOTICE, "SMSqueue old max: %d new: %d\n",
+ smsq->max_pending, max_pending);
+ smsq->max_pending = max_pending;
+ return 0;
+}
+
+int sms_queue_set_max_failure(struct gsm_sms_queue *smsq, int max_fail)
+{
+ LOGP(DSMS, LOGL_NOTICE, "SMSqueue max failure old: %d new: %d\n",
+ smsq->max_fail, max_fail);
+ smsq->max_fail = max_fail;
+ return 0;
+}
+
+int sms_queue_clear(struct gsm_sms_queue *smsq)
+{
+ struct gsm_sms_pending *pending, *tmp;
+
+ llist_for_each_entry_safe(pending, tmp, &smsq->pending_sms, entry) {
+ LOGP(DSMS, LOGL_NOTICE,
+ "SMSqueue clearing for sub %llu\n", pending->subscr->id);
+ sms_pending_free(pending);
+ }
+
+ smsq->pending = 0;
+ return 0;
+}
diff --git a/src/libmsc/token_auth.c b/src/libmsc/token_auth.c
new file mode 100644
index 00000000..3404dd4e
--- /dev/null
+++ b/src/libmsc/token_auth.c
@@ -0,0 +1,153 @@
+/* SMS based token authentication for ad-hoc GSM networks */
+
+/* (C) 2009 by Harald Welte <laforge@gnumonks.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 <stdio.h>
+#include <osmocore/talloc.h>
+#include <openbsc/signal.h>
+#include <openbsc/gsm_data.h>
+#include <openbsc/gsm_04_11.h>
+#include <openbsc/gsm_04_08.h>
+#include <openbsc/gsm_subscriber.h>
+#include <openbsc/chan_alloc.h>
+#include <openbsc/db.h>
+
+#define TOKEN_SMS_TEXT "HAR 2009 GSM. Register at http://har2009.gnumonks.org/ " \
+ "Your IMSI is %s, auth token is %08X, phone no is %s."
+
+static char *build_sms_string(struct gsm_subscriber *subscr, u_int32_t token)
+{
+ char *sms_str;
+ unsigned int len;
+
+ len = strlen(subscr->imsi) + 8 + strlen(TOKEN_SMS_TEXT);
+ sms_str = talloc_size(tall_bsc_ctx, len);
+ if (!sms_str)
+ return NULL;
+
+ snprintf(sms_str, len, TOKEN_SMS_TEXT, subscr->imsi, token,
+ subscr->extension);
+ sms_str[len-1] = '\0';
+
+ return sms_str;
+}
+
+static int token_subscr_cb(unsigned int subsys, unsigned int signal,
+ void *handler_data, void *signal_data)
+{
+ struct gsm_subscriber *subscr = signal_data;
+ struct gsm_sms *sms;
+ int rc = 0;
+
+ if (signal != S_SUBSCR_ATTACHED)
+ return 0;
+
+ if (subscr->net->auth_policy != GSM_AUTH_POLICY_TOKEN)
+ return 0;
+
+ if (subscr->flags & GSM_SUBSCRIBER_FIRST_CONTACT) {
+ u_int32_t token;
+ char *sms_str;
+
+ /* we've seen this subscriber for the first time. */
+ rc = db_subscriber_alloc_token(subscr, &token);
+ if (rc != 0) {
+ rc = -EIO;
+ goto unauth;
+ }
+
+ sms_str = build_sms_string(subscr, token);
+ if (!sms_str) {
+ rc = -ENOMEM;
+ goto unauth;
+ }
+
+ sms = sms_from_text(subscr, 0, sms_str);
+ talloc_free(sms_str);
+ if (!sms) {
+ rc = -ENOMEM;
+ goto unauth;
+ }
+
+ rc = gsm411_send_sms_subscr(subscr, sms);
+
+ /* FIXME: else, delete the subscirber from database */
+unauth:
+
+ /* make sure we don't allow him in again unless he clicks the web UI */
+ subscr->authorized = 0;
+ db_sync_subscriber(subscr);
+ if (rc) {
+ struct gsm_subscriber_connection *conn = connection_for_subscr(subscr);
+ if (conn) {
+ u_int8_t auth_rand[16];
+ /* kick the subscriber off the network */
+ gsm48_tx_mm_auth_req(conn, auth_rand, 0);
+ gsm48_tx_mm_auth_rej(conn);
+ /* FIXME: close the channel early ?*/
+ //gsm48_send_rr_Release(lchan);
+ }
+ }
+ }
+
+ return rc;
+}
+
+static int token_sms_cb(unsigned int subsys, unsigned int signal,
+ void *handler_data, void *signal_data)
+{
+ struct sms_signal_data *sig = signal_data;
+ struct gsm_sms *sms = sig->sms;;
+ struct gsm_subscriber_connection *conn;
+ u_int8_t auth_rand[16];
+
+
+ if (signal != S_SMS_DELIVERED)
+ return 0;
+
+
+ /* these are not the droids we've been looking for */
+ if (!sms->receiver ||
+ !(sms->receiver->flags & GSM_SUBSCRIBER_FIRST_CONTACT))
+ return 0;
+
+
+ if (sms->receiver->net->auth_policy != GSM_AUTH_POLICY_TOKEN)
+ return 0;
+
+
+ conn = connection_for_subscr(sms->receiver);
+ if (conn) {
+ /* kick the subscriber off the network */
+ gsm48_tx_mm_auth_req(conn, auth_rand, 0);
+ gsm48_tx_mm_auth_rej(conn);
+ /* FIXME: close the channel early ?*/
+ //gsm48_send_rr_Release(lchan);
+ }
+
+ return 0;
+}
+
+//static __attribute__((constructor)) void on_dso_load_token(void)
+void on_dso_load_token(void)
+{
+ register_signal_handler(SS_SUBSCR, token_subscr_cb, NULL);
+ register_signal_handler(SS_SMS, token_sms_cb, NULL);
+}
diff --git a/src/libmsc/ussd.c b/src/libmsc/ussd.c
new file mode 100644
index 00000000..72f26bd3
--- /dev/null
+++ b/src/libmsc/ussd.c
@@ -0,0 +1,79 @@
+/* Network-specific handling of mobile-originated USSDs. */
+
+/* (C) 2008-2009 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2008, 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
+ * (C) 2009 by Mike Haben <michael.haben@btinternet.com>
+ *
+ * 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/>.
+ *
+ */
+
+/* This module defines the network-specific handling of mobile-originated
+ USSD messages. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include <openbsc/gsm_04_80.h>
+#include <openbsc/gsm_subscriber.h>
+#include <openbsc/debug.h>
+#include <openbsc/osmo_msc.h>
+
+/* Declarations of USSD strings to be recognised */
+const char USSD_TEXT_OWN_NUMBER[] = "*#100#";
+
+/* Forward declarations of network-specific handler functions */
+static int send_own_number(struct gsm_subscriber_connection *conn, const struct msgb *msg, const struct ussd_request *req);
+
+
+/* Entrypoint - handler function common to all mobile-originated USSDs */
+int handle_rcv_ussd(struct gsm_subscriber_connection *conn, struct msgb *msg)
+{
+ int rc;
+ struct ussd_request req;
+ struct gsm48_hdr *gh;
+
+ memset(&req, 0, sizeof(req));
+ gh = msgb_l3(msg);
+ rc = gsm0480_decode_ussd_request(gh, msgb_l3len(msg), &req);
+ if (req.text[0] == 0xFF) /* Release-Complete */
+ return 0;
+
+ if (strstr(USSD_TEXT_OWN_NUMBER, req.text) != NULL) {
+ DEBUGP(DMM, "USSD: Own number requested\n");
+ rc = send_own_number(conn, msg, &req);
+ } else {
+ DEBUGP(DMM, "Unhandled USSD %s\n", req.text);
+ rc = gsm0480_send_ussd_reject(conn, msg, &req);
+ }
+
+ /* check if we can release it */
+ msc_release_connection(conn);
+ return rc;
+}
+
+/* A network-specific handler function */
+static int send_own_number(struct gsm_subscriber_connection *conn, const struct msgb *msg, const struct ussd_request *req)
+{
+ char *own_number = conn->subscr->extension;
+ char response_string[GSM_EXTENSION_LENGTH + 20];
+
+ /* Need trailing CR as EOT character */
+ snprintf(response_string, sizeof(response_string), "Your extension is %s\r", own_number);
+ return gsm0480_send_ussd_response(conn, msg, response_string, req);
+}
diff --git a/src/libmsc/vty_interface_layer3.c b/src/libmsc/vty_interface_layer3.c
new file mode 100644
index 00000000..a38d15bb
--- /dev/null
+++ b/src/libmsc/vty_interface_layer3.c
@@ -0,0 +1,790 @@
+/* OpenBSC interface to quagga VTY */
+/* (C) 2009 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2009 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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <stdlib.h>
+#include <limits.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+#include <osmocom/vty/command.h>
+#include <osmocom/vty/buffer.h>
+#include <osmocom/vty/vty.h>
+
+#include <arpa/inet.h>
+
+#include <osmocore/linuxlist.h>
+#include <openbsc/gsm_data.h>
+#include <openbsc/gsm_subscriber.h>
+#include <openbsc/silent_call.h>
+#include <openbsc/gsm_04_11.h>
+#include <openbsc/e1_input.h>
+#include <openbsc/abis_nm.h>
+#include <osmocore/gsm_utils.h>
+#include <osmocore/utils.h>
+#include <openbsc/db.h>
+#include <osmocore/talloc.h>
+#include <openbsc/signal.h>
+#include <openbsc/debug.h>
+#include <openbsc/vty.h>
+#include <openbsc/gsm_04_80.h>
+#include <openbsc/chan_alloc.h>
+#include <openbsc/sms_queue.h>
+
+extern struct gsm_network *gsmnet_from_vty(struct vty *v);
+
+static void subscr_dump_full_vty(struct vty *vty, struct gsm_subscriber *subscr, int pending)
+{
+ int rc;
+ struct gsm_auth_info ainfo;
+ struct gsm_auth_tuple atuple;
+
+ vty_out(vty, " ID: %llu, Authorized: %d%s", subscr->id,
+ subscr->authorized, VTY_NEWLINE);
+ if (subscr->name)
+ vty_out(vty, " Name: '%s'%s", subscr->name, VTY_NEWLINE);
+ if (subscr->extension)
+ vty_out(vty, " Extension: %s%s", subscr->extension,
+ VTY_NEWLINE);
+ vty_out(vty, " LAC: %d/0x%x%s",
+ subscr->lac, subscr->lac, VTY_NEWLINE);
+ if (subscr->imsi)
+ vty_out(vty, " IMSI: %s%s", subscr->imsi, VTY_NEWLINE);
+ if (subscr->tmsi != GSM_RESERVED_TMSI)
+ vty_out(vty, " TMSI: %08X%s", subscr->tmsi,
+ VTY_NEWLINE);
+
+ rc = db_get_authinfo_for_subscr(&ainfo, subscr);
+ if (!rc) {
+ vty_out(vty, " A3A8 algorithm id: %d%s",
+ ainfo.auth_algo, VTY_NEWLINE);
+ vty_out(vty, " A3A8 Ki: %s%s",
+ hexdump(ainfo.a3a8_ki, ainfo.a3a8_ki_len),
+ VTY_NEWLINE);
+ }
+
+ rc = db_get_lastauthtuple_for_subscr(&atuple, subscr);
+ if (!rc) {
+ vty_out(vty, " A3A8 last tuple (used %d times):%s",
+ atuple.use_count, VTY_NEWLINE);
+ vty_out(vty, " seq # : %d%s",
+ atuple.key_seq, VTY_NEWLINE);
+ vty_out(vty, " RAND : %s%s",
+ hexdump(atuple.rand, sizeof(atuple.rand)),
+ VTY_NEWLINE);
+ vty_out(vty, " SRES : %s%s",
+ hexdump(atuple.sres, sizeof(atuple.sres)),
+ VTY_NEWLINE);
+ vty_out(vty, " Kc : %s%s",
+ hexdump(atuple.kc, sizeof(atuple.kc)),
+ VTY_NEWLINE);
+ }
+ if (pending)
+ vty_out(vty, " Pending: %d%s",
+ subscr_pending_requests(subscr), VTY_NEWLINE);
+
+ vty_out(vty, " Use count: %u%s", subscr->use_count, VTY_NEWLINE);
+}
+
+
+/* Subscriber */
+DEFUN(show_subscr_cache,
+ show_subscr_cache_cmd,
+ "show subscriber cache",
+ SHOW_STR "Display contents of subscriber cache\n")
+{
+ struct gsm_subscriber *subscr;
+
+ llist_for_each_entry(subscr, &active_subscribers, entry) {
+ vty_out(vty, " Subscriber:%s", VTY_NEWLINE);
+ subscr_dump_full_vty(vty, subscr, 0);
+ }
+
+ return CMD_SUCCESS;
+}
+
+DEFUN(sms_send_pend,
+ sms_send_pend_cmd,
+ "sms send pending",
+ "Send all pending SMS")
+{
+ struct gsm_network *gsmnet = gsmnet_from_vty(vty);
+ struct gsm_sms *sms;
+ int id = 0;
+
+ while (1) {
+ sms = db_sms_get_unsent_by_subscr(gsmnet, id, UINT_MAX);
+ if (!sms)
+ break;
+
+ gsm411_send_sms_subscr(sms->receiver, sms);
+
+ id = sms->receiver->id + 1;
+ }
+
+ return CMD_SUCCESS;
+}
+
+static int _send_sms_str(struct gsm_subscriber *receiver, char *str,
+ u_int8_t tp_pid)
+{
+ struct gsm_sms *sms;
+
+ sms = sms_from_text(receiver, 0, str);
+ sms->protocol_id = tp_pid;
+
+ /* store in database for the queue */
+ if (db_sms_store(sms) != 0) {
+ LOGP(DSMS, LOGL_ERROR, "Failed to store SMS in Database\n");
+ sms_free(sms);
+ return CMD_WARNING;
+ }
+
+ sms_free(sms);
+ sms_queue_trigger(receiver->net->sms_queue);
+ return CMD_SUCCESS;
+}
+
+static struct gsm_subscriber *get_subscr_by_argv(struct gsm_network *gsmnet,
+ const char *type,
+ const char *id)
+{
+ if (!strcmp(type, "extension"))
+ return subscr_get_by_extension(gsmnet, id);
+ else if (!strcmp(type, "imsi"))
+ return subscr_get_by_imsi(gsmnet, id);
+ else if (!strcmp(type, "tmsi"))
+ return subscr_get_by_tmsi(gsmnet, atoi(id));
+ else if (!strcmp(type, "id"))
+ return subscr_get_by_id(gsmnet, atoi(id));
+
+ return NULL;
+}
+#define SUBSCR_TYPES "(extension|imsi|tmsi|id)"
+#define SUBSCR_HELP "Operations on a Subscriber\n" \
+ "Identify subscriber by his extension (phone number)\n" \
+ "Identify subscriber by his IMSI\n" \
+ "Identify subscriber by his TMSI\n" \
+ "Identify subscriber by his database ID\n" \
+ "Identifier for the subscriber\n"
+
+DEFUN(show_subscr,
+ show_subscr_cmd,
+ "show subscriber " SUBSCR_TYPES " ID",
+ SHOW_STR SUBSCR_HELP)
+{
+ struct gsm_network *gsmnet = gsmnet_from_vty(vty);
+ struct gsm_subscriber *subscr =
+ get_subscr_by_argv(gsmnet, argv[0], argv[1]);
+
+ if (!subscr) {
+ vty_out(vty, "%% No subscriber found for %s %s%s",
+ argv[0], argv[1], VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ subscr_dump_full_vty(vty, subscr, 1);
+
+ subscr_put(subscr);
+
+ return CMD_SUCCESS;
+}
+
+DEFUN(subscriber_send_pending_sms,
+ subscriber_send_pending_sms_cmd,
+ "subscriber " SUBSCR_TYPES " ID sms pending send",
+ SUBSCR_HELP "SMS Operations\n" "Send pending SMS\n")
+{
+ struct gsm_network *gsmnet = gsmnet_from_vty(vty);
+ struct gsm_subscriber *subscr = get_subscr_by_argv(gsmnet, argv[0], argv[1]);
+ struct gsm_sms *sms;
+
+ sms = db_sms_get_unsent_by_subscr(gsmnet, subscr->id, UINT_MAX);
+ if (sms)
+ gsm411_send_sms_subscr(sms->receiver, sms);
+
+ subscr_put(subscr);
+
+ return CMD_SUCCESS;
+}
+
+DEFUN(subscriber_send_sms,
+ subscriber_send_sms_cmd,
+ "subscriber " SUBSCR_TYPES " ID sms send .LINE",
+ SUBSCR_HELP "SMS Operations\n" "Send SMS\n" "Actual SMS Text")
+{
+ struct gsm_network *gsmnet = gsmnet_from_vty(vty);
+ struct gsm_subscriber *subscr = get_subscr_by_argv(gsmnet, argv[0], argv[1]);
+ char *str;
+ int rc;
+
+ if (!subscr) {
+ vty_out(vty, "%% No subscriber found for %s %s%s",
+ argv[0], argv[1], VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+ str = argv_concat(argv, argc, 2);
+ rc = _send_sms_str(subscr, str, 0);
+ talloc_free(str);
+
+ subscr_put(subscr);
+
+ return rc;
+}
+
+DEFUN(subscriber_silent_sms,
+ subscriber_silent_sms_cmd,
+ "subscriber " SUBSCR_TYPES " ID silent-sms send .LINE",
+ SUBSCR_HELP
+ "Silent SMS Operation\n" "Send Silent SMS\n" "Actual SMS text\n")
+{
+ struct gsm_network *gsmnet = gsmnet_from_vty(vty);
+ struct gsm_subscriber *subscr = get_subscr_by_argv(gsmnet, argv[0], argv[1]);
+ char *str;
+ int rc;
+
+ if (!subscr) {
+ vty_out(vty, "%% No subscriber found for %s %s%s",
+ argv[0], argv[1], VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ str = argv_concat(argv, argc, 2);
+ rc = _send_sms_str(subscr, str, 64);
+ talloc_free(str);
+
+ subscr_put(subscr);
+
+ return rc;
+}
+
+#define CHAN_TYPES "(any|tch/f|tch/any|sdcch)"
+#define CHAN_TYPE_HELP \
+ "Any channel\n" \
+ "TCH/F channel\n" \
+ "Any TCH channel\n" \
+ "SDCCH channel\n"
+
+DEFUN(subscriber_silent_call_start,
+ subscriber_silent_call_start_cmd,
+ "subscriber " SUBSCR_TYPES " ID silent-call start (any|tch/f|tch/any|sdcch)",
+ SUBSCR_HELP "Silent call operation\n" "Start silent call\n"
+ CHAN_TYPE_HELP)
+{
+ struct gsm_network *gsmnet = gsmnet_from_vty(vty);
+ struct gsm_subscriber *subscr = get_subscr_by_argv(gsmnet, argv[0], argv[1]);
+ int rc, type;
+
+ if (!subscr) {
+ vty_out(vty, "%% No subscriber found for %s %s%s",
+ argv[0], argv[1], VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ if (!strcmp(argv[2], "tch/f"))
+ type = RSL_CHANNEED_TCH_F;
+ else if (!strcmp(argv[2], "tch/any"))
+ type = RSL_CHANNEED_TCH_ForH;
+ else if (!strcmp(argv[2], "sdcch"))
+ type = RSL_CHANNEED_SDCCH;
+ else
+ type = RSL_CHANNEED_ANY; /* Defaults to ANY */
+
+ rc = gsm_silent_call_start(subscr, vty, type);
+ if (rc <= 0) {
+ vty_out(vty, "%% Subscriber not attached%s",
+ VTY_NEWLINE);
+ subscr_put(subscr);
+ return CMD_WARNING;
+ }
+
+ subscr_put(subscr);
+
+ return CMD_SUCCESS;
+}
+
+DEFUN(subscriber_silent_call_stop,
+ subscriber_silent_call_stop_cmd,
+ "subscriber " SUBSCR_TYPES " ID silent-call stop",
+ SUBSCR_HELP "Silent call operation\n" "Stop silent call\n"
+ CHAN_TYPE_HELP)
+{
+ struct gsm_network *gsmnet = gsmnet_from_vty(vty);
+ struct gsm_subscriber *subscr = get_subscr_by_argv(gsmnet, argv[0], argv[1]);
+ int rc;
+
+ if (!subscr) {
+ vty_out(vty, "%% No subscriber found for %s %s%s",
+ argv[0], argv[1], VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ rc = gsm_silent_call_stop(subscr);
+ if (rc < 0) {
+ subscr_put(subscr);
+ return CMD_WARNING;
+ }
+
+ subscr_put(subscr);
+
+ return CMD_SUCCESS;
+}
+
+DEFUN(subscriber_ussd_notify,
+ subscriber_ussd_notify_cmd,
+ "subscriber " SUBSCR_TYPES " ID ussd-notify (0|1|2) .TEXT",
+ SUBSCR_HELP "USSD Notify\n"
+ "Subscriber ID\n"
+ "Alerting Level\n"
+ "Text Message to send\n")
+{
+ char *text;
+ struct gsm_subscriber_connection *conn;
+ struct gsm_network *gsmnet = gsmnet_from_vty(vty);
+ struct gsm_subscriber *subscr = get_subscr_by_argv(gsmnet, argv[0], argv[1]);
+ int level;
+
+ if (!subscr) {
+ vty_out(vty, "%% No subscriber found for %s %s%s",
+ argv[0], argv[1], VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ level = atoi(argv[2]);
+ text = argv_concat(argv, argc, 3);
+ if (!text) {
+ subscr_put(subscr);
+ return CMD_WARNING;
+ }
+
+ conn = connection_for_subscr(subscr);
+ if (!conn) {
+ vty_out(vty, "%% An active connection is required for %s %s%s",
+ argv[0], argv[1], VTY_NEWLINE);
+ subscr_put(subscr);
+ talloc_free(text);
+ return CMD_WARNING;
+ }
+
+ gsm0480_send_ussdNotify(conn, level, text);
+ gsm0480_send_releaseComplete(conn);
+
+ subscr_put(subscr);
+ talloc_free(text);
+ return CMD_SUCCESS;
+}
+
+DEFUN(ena_subscr_authorizde,
+ ena_subscr_authorized_cmd,
+ "subscriber " SUBSCR_TYPES " ID authorized (0|1)",
+ SUBSCR_HELP "(De-)Authorize subscriber in HLR\n"
+ "Subscriber should NOT be authorized\n"
+ "Subscriber should be authorized\n")
+{
+ struct gsm_network *gsmnet = gsmnet_from_vty(vty);
+ struct gsm_subscriber *subscr =
+ get_subscr_by_argv(gsmnet, argv[0], argv[1]);
+
+ if (!subscr) {
+ vty_out(vty, "%% No subscriber found for %s %s%s",
+ argv[0], argv[1], VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ subscr->authorized = atoi(argv[2]);
+ db_sync_subscriber(subscr);
+
+ subscr_put(subscr);
+
+ return CMD_SUCCESS;
+}
+
+DEFUN(ena_subscr_name,
+ ena_subscr_name_cmd,
+ "subscriber " SUBSCR_TYPES " ID name .NAME",
+ SUBSCR_HELP "Set the name of the subscriber\n"
+ "Name of the Subscriber\n")
+{
+ struct gsm_network *gsmnet = gsmnet_from_vty(vty);
+ struct gsm_subscriber *subscr =
+ get_subscr_by_argv(gsmnet, argv[0], argv[1]);
+ char *name;
+
+ if (!subscr) {
+ vty_out(vty, "%% No subscriber found for %s %s%s",
+ argv[0], argv[1], VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ name = argv_concat(argv, argc, 2);
+ if (!name) {
+ subscr_put(subscr);
+ return CMD_WARNING;
+ }
+
+ strncpy(subscr->name, name, sizeof(subscr->name));
+ talloc_free(name);
+ db_sync_subscriber(subscr);
+
+ subscr_put(subscr);
+
+ return CMD_SUCCESS;
+}
+
+DEFUN(ena_subscr_extension,
+ ena_subscr_extension_cmd,
+ "subscriber " SUBSCR_TYPES " ID extension EXTENSION",
+ SUBSCR_HELP "Set the extension (phone number) of the subscriber\n"
+ "Extension (phone number)\n")
+{
+ struct gsm_network *gsmnet = gsmnet_from_vty(vty);
+ struct gsm_subscriber *subscr =
+ get_subscr_by_argv(gsmnet, argv[0], argv[1]);
+ const char *name = argv[2];
+
+ if (!subscr) {
+ vty_out(vty, "%% No subscriber found for %s %s%s",
+ argv[0], argv[1], VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ strncpy(subscr->extension, name, sizeof(subscr->name));
+ db_sync_subscriber(subscr);
+
+ subscr_put(subscr);
+
+ return CMD_SUCCESS;
+}
+
+DEFUN(ena_subscr_clear,
+ ena_subscr_clear_cmd,
+ "subscriber " SUBSCR_TYPES " ID clear-requests",
+ SUBSCR_HELP "Clear the paging requests for this subscriber\n")
+{
+ int del;
+ struct gsm_network *gsmnet = gsmnet_from_vty(vty);
+ struct gsm_subscriber *subscr =
+ get_subscr_by_argv(gsmnet, argv[0], argv[1]);
+
+ if (!subscr) {
+ vty_out(vty, "%% No subscriber found for %s %s%s",
+ argv[0], argv[1], VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ del = subscr_pending_clear(subscr);
+ vty_out(vty, "Cleared %d pending requests.%s", del, VTY_NEWLINE);
+ subscr_put(subscr);
+
+ return CMD_SUCCESS;
+}
+
+DEFUN(ena_subscr_pend,
+ ena_subscr_pend_cmd,
+ "subscriber " SUBSCR_TYPES " ID show-pending",
+ SUBSCR_HELP "Clear the paging requests for this subscriber\n")
+{
+ struct gsm_network *gsmnet = gsmnet_from_vty(vty);
+ struct gsm_subscriber *subscr =
+ get_subscr_by_argv(gsmnet, argv[0], argv[1]);
+
+ if (!subscr) {
+ vty_out(vty, "%% No subscriber found for %s %s%s",
+ argv[0], argv[1], VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ subscr_pending_dump(subscr, vty);
+ subscr_put(subscr);
+
+ return CMD_SUCCESS;
+}
+
+DEFUN(ena_subscr_kick,
+ ena_subscr_kick_cmd,
+ "subscriber " SUBSCR_TYPES " ID kick-pending",
+ SUBSCR_HELP "Clear the paging requests for this subscriber\n")
+{
+ struct gsm_network *gsmnet = gsmnet_from_vty(vty);
+ struct gsm_subscriber *subscr =
+ get_subscr_by_argv(gsmnet, argv[0], argv[1]);
+
+ if (!subscr) {
+ vty_out(vty, "%% No subscriber found for %s %s%s",
+ argv[0], argv[1], VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ subscr_pending_kick(subscr);
+ subscr_put(subscr);
+
+ return CMD_SUCCESS;
+}
+
+#define A3A8_ALG_TYPES "(none|xor|comp128v1)"
+#define A3A8_ALG_HELP \
+ "Use No A3A8 algorithm\n" \
+ "Use XOR algorithm\n" \
+ "Use COMP128v1 algorithm\n"
+
+DEFUN(ena_subscr_a3a8,
+ ena_subscr_a3a8_cmd,
+ "subscriber " SUBSCR_TYPES " ID a3a8 " A3A8_ALG_TYPES " [KI]",
+ SUBSCR_HELP "Set a3a8 parameters for the subscriber\n"
+ A3A8_ALG_HELP "Encryption Key Ki\n")
+{
+ struct gsm_network *gsmnet = gsmnet_from_vty(vty);
+ struct gsm_subscriber *subscr =
+ get_subscr_by_argv(gsmnet, argv[0], argv[1]);
+ const char *alg_str = argv[2];
+ const char *ki_str = argc == 4 ? argv[3] : NULL;
+ struct gsm_auth_info ainfo;
+ int rc, minlen, maxlen;
+
+ if (!subscr) {
+ vty_out(vty, "%% No subscriber found for %s %s%s",
+ argv[0], argv[1], VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ if (!strcasecmp(alg_str, "none")) {
+ ainfo.auth_algo = AUTH_ALGO_NONE;
+ minlen = maxlen = 0;
+ } else if (!strcasecmp(alg_str, "xor")) {
+ ainfo.auth_algo = AUTH_ALGO_XOR;
+ minlen = A38_XOR_MIN_KEY_LEN;
+ maxlen = A38_XOR_MAX_KEY_LEN;
+ } else if (!strcasecmp(alg_str, "comp128v1")) {
+ ainfo.auth_algo = AUTH_ALGO_COMP128v1;
+ minlen = maxlen = A38_COMP128_KEY_LEN;
+ } else {
+ /* Unknown method */
+ subscr_put(subscr);
+ return CMD_WARNING;
+ }
+
+ if (ki_str) {
+ rc = hexparse(ki_str, ainfo.a3a8_ki, sizeof(ainfo.a3a8_ki));
+ if ((rc > maxlen) || (rc < minlen)) {
+ subscr_put(subscr);
+ return CMD_WARNING;
+ }
+ ainfo.a3a8_ki_len = rc;
+ } else {
+ ainfo.a3a8_ki_len = 0;
+ if (minlen) {
+ subscr_put(subscr);
+ return CMD_WARNING;
+ }
+ }
+
+ rc = db_sync_authinfo_for_subscr(
+ ainfo.auth_algo == AUTH_ALGO_NONE ? NULL : &ainfo,
+ subscr);
+
+ /* the last tuple probably invalid with the new auth settings */
+ db_sync_lastauthtuple_for_subscr(NULL, subscr);
+ subscr_put(subscr);
+
+ return rc ? CMD_WARNING : CMD_SUCCESS;
+}
+
+DEFUN(subscriber_purge,
+ subscriber_purge_cmd,
+ "subscriber purge-inactive",
+ "Operations on a Subscriber\n" "Purge subscribers with a zero use count.\n")
+{
+ struct gsm_network *net = gsmnet_from_vty(vty);
+ int purged;
+
+ purged = subscr_purge_inactive(net);
+ vty_out(vty, "%d subscriber(s) were purged.%s", purged, VTY_NEWLINE);
+ return CMD_SUCCESS;
+}
+
+DEFUN(subscriber_update,
+ subscriber_update_cmd,
+ "subscriber " SUBSCR_TYPES " ID update",
+ SUBSCR_HELP "Update the subscriber data from the dabase.\n")
+{
+ struct gsm_network *gsmnet = gsmnet_from_vty(vty);
+ struct gsm_subscriber *subscr = get_subscr_by_argv(gsmnet, argv[0], argv[1]);
+
+ if (!subscr) {
+ vty_out(vty, "%% No subscriber found for %s %s%s",
+ argv[0], argv[1], VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ subscr_update_from_db(subscr);
+ subscr_put(subscr);
+ return CMD_SUCCESS;
+}
+
+static int scall_cbfn(unsigned int subsys, unsigned int signal,
+ void *handler_data, void *signal_data)
+{
+ struct scall_signal_data *sigdata = signal_data;
+ struct vty *vty = sigdata->data;
+
+ switch (signal) {
+ case S_SCALL_SUCCESS:
+ vty_out(vty, "%% silent call on ARFCN %u timeslot %u%s",
+ sigdata->conn->lchan->ts->trx->arfcn, sigdata->conn->lchan->ts->nr,
+ VTY_NEWLINE);
+ break;
+ case S_SCALL_EXPIRED:
+ vty_out(vty, "%% silent call expired paging%s", VTY_NEWLINE);
+ break;
+ }
+ return 0;
+}
+
+DEFUN(show_stats,
+ show_stats_cmd,
+ "show statistics",
+ SHOW_STR "Display network statistics\n")
+{
+ struct gsm_network *net = gsmnet_from_vty(vty);
+
+ openbsc_vty_print_statistics(vty, net);
+ vty_out(vty, "Channel Requests : %lu total, %lu no channel%s",
+ counter_get(net->stats.chreq.total),
+ counter_get(net->stats.chreq.no_channel), VTY_NEWLINE);
+ vty_out(vty, "Location Update : %lu attach, %lu normal, %lu periodic%s",
+ counter_get(net->stats.loc_upd_type.attach),
+ counter_get(net->stats.loc_upd_type.normal),
+ counter_get(net->stats.loc_upd_type.periodic), VTY_NEWLINE);
+ vty_out(vty, "IMSI Detach Indications : %lu%s",
+ counter_get(net->stats.loc_upd_type.detach), VTY_NEWLINE);
+ vty_out(vty, "Location Update Response: %lu accept, %lu reject%s",
+ counter_get(net->stats.loc_upd_resp.accept),
+ counter_get(net->stats.loc_upd_resp.reject), VTY_NEWLINE);
+ vty_out(vty, "Handover : %lu attempted, %lu no_channel, %lu timeout, "
+ "%lu completed, %lu failed%s",
+ counter_get(net->stats.handover.attempted),
+ counter_get(net->stats.handover.no_channel),
+ counter_get(net->stats.handover.timeout),
+ counter_get(net->stats.handover.completed),
+ counter_get(net->stats.handover.failed), VTY_NEWLINE);
+ vty_out(vty, "SMS MO : %lu submitted, %lu no receiver%s",
+ counter_get(net->stats.sms.submitted),
+ counter_get(net->stats.sms.no_receiver), VTY_NEWLINE);
+ vty_out(vty, "SMS MT : %lu delivered, %lu no memory, %lu other error%s",
+ counter_get(net->stats.sms.delivered),
+ counter_get(net->stats.sms.rp_err_mem),
+ counter_get(net->stats.sms.rp_err_other), VTY_NEWLINE);
+ vty_out(vty, "MO Calls : %lu setup, %lu connect ack%s",
+ counter_get(net->stats.call.mo_setup),
+ counter_get(net->stats.call.mo_connect_ack), VTY_NEWLINE);
+ vty_out(vty, "MT Calls : %lu setup, %lu connect%s",
+ counter_get(net->stats.call.mt_setup),
+ counter_get(net->stats.call.mt_connect), VTY_NEWLINE);
+ return CMD_SUCCESS;
+}
+
+DEFUN(show_smsqueue,
+ show_smsqueue_cmd,
+ "show sms-queue",
+ SHOW_STR "Display SMSqueue statistics\n")
+{
+ struct gsm_network *net = gsmnet_from_vty(vty);
+
+ sms_queue_stats(net->sms_queue, vty);
+ return CMD_SUCCESS;
+}
+
+DEFUN(smsqueue_trigger,
+ smsqueue_trigger_cmd,
+ "sms-queue trigger",
+ "SMS Queue\n" "Trigger sending messages\n")
+{
+ struct gsm_network *net = gsmnet_from_vty(vty);
+
+ sms_queue_trigger(net->sms_queue);
+ return CMD_SUCCESS;
+}
+
+DEFUN(smsqueue_max,
+ smsqueue_max_cmd,
+ "sms-queue max-pending <1-500>",
+ "SMS Queue\n" "SMS to attempt to deliver at the same time\n")
+{
+ struct gsm_network *net = gsmnet_from_vty(vty);
+
+ sms_queue_set_max_pending(net->sms_queue, atoi(argv[0]));
+ return CMD_SUCCESS;
+}
+
+DEFUN(smsqueue_clear,
+ smsqueue_clear_cmd,
+ "sms-queue clear",
+ "SMS Queue\n" "Clear the queue of pending SMS\n")
+{
+ struct gsm_network *net = gsmnet_from_vty(vty);
+
+ sms_queue_clear(net->sms_queue);
+ return CMD_SUCCESS;
+}
+
+DEFUN(smsqueue_fail,
+ smsqueue_fail_cmd,
+ "sms-queue max-failure <1-500>",
+ "SMS Queue\n" "Set maximum amount of failures\n")
+{
+ struct gsm_network *net = gsmnet_from_vty(vty);
+
+ sms_queue_set_max_failure(net->sms_queue, atoi(argv[0]));
+ return CMD_SUCCESS;
+}
+
+int bsc_vty_init_extra(void)
+{
+ register_signal_handler(SS_SCALL, scall_cbfn, NULL);
+
+ install_element_ve(&show_subscr_cmd);
+ install_element_ve(&show_subscr_cache_cmd);
+
+ install_element_ve(&sms_send_pend_cmd);
+
+ install_element_ve(&subscriber_send_sms_cmd);
+ install_element_ve(&subscriber_silent_sms_cmd);
+ install_element_ve(&subscriber_silent_call_start_cmd);
+ install_element_ve(&subscriber_silent_call_stop_cmd);
+ install_element_ve(&subscriber_ussd_notify_cmd);
+ install_element_ve(&subscriber_update_cmd);
+ install_element_ve(&show_stats_cmd);
+ install_element_ve(&show_smsqueue_cmd);
+
+ install_element(ENABLE_NODE, &ena_subscr_name_cmd);
+ install_element(ENABLE_NODE, &ena_subscr_extension_cmd);
+ install_element(ENABLE_NODE, &ena_subscr_authorized_cmd);
+ install_element(ENABLE_NODE, &ena_subscr_a3a8_cmd);
+ install_element(ENABLE_NODE, &ena_subscr_clear_cmd);
+ install_element(ENABLE_NODE, &ena_subscr_pend_cmd);
+ install_element(ENABLE_NODE, &ena_subscr_kick_cmd);
+ install_element(ENABLE_NODE, &subscriber_purge_cmd);
+ install_element(ENABLE_NODE, &smsqueue_trigger_cmd);
+ install_element(ENABLE_NODE, &smsqueue_max_cmd);
+ install_element(ENABLE_NODE, &smsqueue_clear_cmd);
+ install_element(ENABLE_NODE, &smsqueue_fail_cmd);
+ install_element(ENABLE_NODE, &subscriber_send_pending_sms_cmd);
+
+ return 0;
+}