diff options
Diffstat (limited to 'openbsc/src/libmsc/a_iface.c')
-rw-r--r-- | openbsc/src/libmsc/a_iface.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/openbsc/src/libmsc/a_iface.c b/openbsc/src/libmsc/a_iface.c new file mode 100644 index 000000000..d0423fec1 --- /dev/null +++ b/openbsc/src/libmsc/a_iface.c @@ -0,0 +1,77 @@ +/* A-interface implementation, from MSC to BSC */ + +/* (C) 2016 by sysmocom s.m.f.c GmbH <info@sysmocom.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 <osmocom/core/msgb.h> +#include <osmocom/core/logging.h> + +#include <openbsc/debug.h> + +#include <openbsc/gsm_data.h> +#include <openbsc/msc_ifaces.h> + +int a_tx(struct msgb *msg) +{ + LOGP(DMSC, LOGL_ERROR, "message to be sent to BSC, but A-interface" + " not implemented.\n%s\n", osmo_hexdump(msg->data, msg->len)); + return -1; +} + +int gsm0808_cipher_mode(struct gsm_subscriber_connection *conn, int cipher, + const uint8_t *key, int len, int include_imeisv) +{ + /* TODO generalize for A- and Iu interfaces, don't name after 08.08 */ + LOGP(DMSC, LOGL_ERROR, "gsm0808_cipher_mode(): message to be sent to" + " BSC, but A interface not yet implemented.\n"); + return -1; +} + +/* from gsm_04_08_utils.c *****/ + +/* 9.2.5 CM service accept */ +int gsm48_tx_mm_serv_ack(struct gsm_subscriber_connection *conn) +{ + struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 SERV ACC"); + struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh)); + + gh->proto_discr = GSM48_PDISC_MM; + gh->msg_type = GSM48_MT_MM_CM_SERV_ACC; + + DEBUGP(DMM, "-> CM SERVICE ACCEPT\n"); + + return msc_tx_dtap(conn, msg); +} + +/* 9.2.6 CM service reject */ +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); + + return msc_tx_dtap(conn, msg); +} |