132 lines
3.6 KiB
C
132 lines
3.6 KiB
C
/* GSM MS Testing Layer 3 messages
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* 3GPP TS 44.014 / GSM TS 04.14 */
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/* (C) 2017 by Harald Welte <laforge@gnumonks.org>
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*
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* All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include "bscconfig.h"
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#include <osmocom/msc/debug.h>
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#include <osmocom/msc/gsm_data.h>
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#include <osmocom/msc/gsm_subscriber.h>
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#include <osmocom/msc/gsm_04_08.h>
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#include <osmocom/msc/msc_ifaces.h>
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#include <osmocom/gsm/gsm48.h>
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#include <osmocom/gsm/gsm_utils.h>
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#include <osmocom/gsm/protocol/gsm_04_14.h>
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#include <osmocom/gsm/tlv.h>
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#include <osmocom/core/msgb.h>
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#include <osmocom/core/talloc.h>
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#include <osmocom/core/utils.h>
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static struct msgb *create_gsm0414_msg(uint8_t msg_type)
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{
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struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.14");
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struct gsm48_hdr *gh;
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gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh) + 1);
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gh->proto_discr = GSM48_PDISC_TEST;
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gh->msg_type = msg_type;
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return msg;
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}
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static int gsm0414_conn_sendmsg(struct ran_conn *conn, struct msgb *msg)
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{
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return msc_tx_dtap(conn, msg);
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}
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static int gsm0414_tx_simple(struct ran_conn *conn, uint8_t msg_type)
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{
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struct msgb *msg = create_gsm0414_msg(msg_type);
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return gsm0414_conn_sendmsg(conn, msg);
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}
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/* Send a CLOSE_TCH_LOOOP_CMD according to Section 8.1 */
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int gsm0414_tx_close_tch_loop_cmd(struct ran_conn *conn,
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enum gsm414_tch_loop_mode loop_mode)
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{
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struct msgb *msg = create_gsm0414_msg(GSM414_MT_CLOSE_TCH_LOOP_CMD);
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uint8_t subch;
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subch = (loop_mode << 1);
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msgb_put_u8(msg, subch);
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return gsm0414_conn_sendmsg(conn, msg);
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}
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/* Send a OPEN_LOOP_CMD according to Section 8.3 */
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int gsm0414_tx_open_loop_cmd(struct ran_conn *conn)
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{
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return gsm0414_tx_simple(conn, GSM414_MT_OPEN_LOOP_CMD);
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}
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/* Send a ACT_EMMI_CMD according to Section 8.8 */
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int gsm0414_tx_act_emmi_cmd(struct ran_conn *conn)
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{
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return gsm0414_tx_simple(conn, GSM414_MT_ACT_EMMI_CMD);
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}
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/* Send a DEACT_EMMI_CMD according to Section 8.10 */
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int gsm0414_tx_deact_emmi_cmd(struct ran_conn *conn)
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{
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return gsm0414_tx_simple(conn, GSM414_MT_DEACT_EMMI_CMD);
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}
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/* Send a TEST_INTERFACE according to Section 8.11 */
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int gsm0414_tx_test_interface(struct ran_conn *conn,
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uint8_t tested_devs)
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{
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struct msgb *msg = create_gsm0414_msg(GSM414_MT_TEST_INTERFACE);
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msgb_put_u8(msg, tested_devs);
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return gsm0414_conn_sendmsg(conn, msg);
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}
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/* Send a RESET_MS_POSITION_STORED according to Section 8.11 */
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int gsm0414_tx_reset_ms_pos_store(struct ran_conn *conn,
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uint8_t technology)
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{
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struct msgb *msg = create_gsm0414_msg(GSM414_MT_RESET_MS_POS_STORED);
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msgb_put_u8(msg, technology);
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return gsm0414_conn_sendmsg(conn, msg);
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}
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/* Entry point for incoming GSM48_PDISC_TEST received from MS */
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int gsm0414_rcv_test(struct ran_conn *conn,
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struct msgb *msg)
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{
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struct gsm48_hdr *gh = msgb_l3(msg);
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if (msgb_l3len(msg) < sizeof(*gh))
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return -1;
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LOGP(DMM, LOGL_NOTICE, "%s: Received TEST class message '%s'\n", "FIXME",
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get_value_string(gsm414_msgt_names, gh->msg_type));
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return 0;
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}
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