70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
|
/* GPRS LLC LLGM SAP as per 3GPP TS 44.064 7.2.3 */
|
||
|
|
/*
|
||
|
|
* (C) 2022 by sysmocom - s.f.m.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 <stdint.h>
|
||
|
|
#include <errno.h>
|
||
|
|
|
||
|
|
#include <osmocom/core/msgb.h>
|
||
|
|
#include <osmocom/core/utils.h>
|
||
|
|
#include <osmocom/core/logging.h>
|
||
|
|
#include <osmocom/crypt/gprs_cipher.h>
|
||
|
|
#include <osmocom/gsm/gsm_utils.h>
|
||
|
|
|
||
|
|
#include <osmocom/gprs/llc/llc.h>
|
||
|
|
#include <osmocom/gprs/llc/llc_prim.h>
|
||
|
|
#include <osmocom/gprs/llc/llc_private.h>
|
||
|
|
|
||
|
|
const struct value_string osmo_gprs_llc_grr_prim_type_names[] = {
|
||
|
|
{ OSMO_GPRS_LLC_GRR_DATA, "DATA" },
|
||
|
|
{ OSMO_GPRS_LLC_GRR_UNITDATA, "UNITDATA" },
|
||
|
|
{ 0, NULL }
|
||
|
|
};
|
||
|
|
|
||
|
|
static int llc_prim_handle_grr_data_ind(struct osmo_gprs_llc_prim *llc_prim)
|
||
|
|
{
|
||
|
|
int rc = gprs_llc_prim_handle_unsupported(llc_prim);
|
||
|
|
return rc;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int llc_prim_handle_grr_unitdata_ind(struct osmo_gprs_llc_prim *llc_prim)
|
||
|
|
{
|
||
|
|
int rc = gprs_llc_prim_handle_unsupported(llc_prim);
|
||
|
|
return rc;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
int gprs_llc_prim_lower_up_grr(struct osmo_gprs_llc_prim *llc_prim)
|
||
|
|
{
|
||
|
|
int rc;
|
||
|
|
|
||
|
|
switch (OSMO_PRIM_HDR(&llc_prim->oph)) {
|
||
|
|
case OSMO_PRIM(OSMO_GPRS_LLC_GRR_DATA, PRIM_OP_INDICATION):
|
||
|
|
rc = llc_prim_handle_grr_data_ind(llc_prim);
|
||
|
|
break;
|
||
|
|
case OSMO_PRIM(OSMO_GPRS_LLC_GRR_UNITDATA, PRIM_OP_INDICATION):
|
||
|
|
rc = llc_prim_handle_grr_unitdata_ind(llc_prim);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
rc = -ENOTSUP;
|
||
|
|
}
|
||
|
|
return rc;
|
||
|
|
}
|