126 lines
3.6 KiB
C
126 lines
3.6 KiB
C
/* (C) 2015 by Daniel Willmann <dwillmann@sysmocom.de>
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* (C) 2021 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
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* Author: Pau Espin Pedrol <pespin@sysmocom.de>
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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/lienses/>.
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*
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*/
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#include <errno.h>
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#include <asn1c/ANY.h>
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#include <asn1c/asn1helpers.h>
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#include <osmocom/rua/rua_ies_defs.h>
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#include <osmocom/ranap/ranap_common_cn.h>
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#include <osmocom/rua/rua_msg_factory.h>
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#include <osmocom/hnodeb/rua.h>
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#include <osmocom/hnodeb/ranap.h>
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#include <osmocom/hnodeb/iuh.h>
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#include <osmocom/hnodeb/hnodeb.h>
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static void hnb_rua_dt_handle(struct hnb *hnb, ANY_t *in)
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{
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RUA_DirectTransferIEs_t ies;
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int rc;
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rc = rua_decode_directtransferies(&ies, in);
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if (rc < 0) {
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LOGP(DRUA, LOGL_INFO, "failed to decode RUA DT IEs\n");
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return;
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}
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/* FIXME: what to do with the asn1c-allocated memory */
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rua_free_directtransferies(&ies);
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}
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static void hnb_rua_cl_handle(struct hnb *hnb, ANY_t *in)
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{
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RUA_ConnectionlessTransferIEs_t ies;
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int rc;
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rc = rua_decode_connectionlesstransferies(&ies, in);
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if (rc < 0) {
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LOGP(DRUA, LOGL_INFO, "failed to decode RUA CL IEs\n");
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return;
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}
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/* FIXME: what to do with the asn1c-allocated memory */
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rua_free_connectionlesstransferies(&ies);
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}
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int hnb_rua_rx(struct hnb *hnb, struct msgb *msg)
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{
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RUA_RUA_PDU_t _pdu, *pdu = &_pdu;
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asn_dec_rval_t dec_ret;
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memset(pdu, 0, sizeof(*pdu));
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dec_ret = aper_decode(NULL, &asn_DEF_RUA_RUA_PDU, (void **) &pdu,
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msg->data, msgb_length(msg), 0, 0);
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if (dec_ret.code != RC_OK) {
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LOGP(DMAIN, LOGL_ERROR, "Error in ASN.1 decode\n");
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return -EINVAL;
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}
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switch (pdu->present) {
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case RUA_RUA_PDU_PR_successfulOutcome:
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LOGP(DRUA, LOGL_INFO, "RUA_RUA_PDU_PR_successfulOutcome\n");
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break;
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case RUA_RUA_PDU_PR_initiatingMessage:
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LOGP(DRUA, LOGL_INFO, "RUA_RUA_PDU_PR_initiatingMessage\n");
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break;
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case RUA_RUA_PDU_PR_NOTHING:
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LOGP(DRUA, LOGL_INFO, "RUA_RUA_PDU_PR_NOTHING\n");
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break;
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case RUA_RUA_PDU_PR_unsuccessfulOutcome:
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LOGP(DRUA, LOGL_INFO, "RUA_RUA_PDU_PR_unsuccessfulOutcome\n");
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break;
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default:
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LOGP(DRUA, LOGL_INFO, "Unexpected RUA message received\n");
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break;
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}
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switch (pdu->choice.successfulOutcome.procedureCode) {
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case RUA_ProcedureCode_id_ConnectionlessTransfer:
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LOGP(DRUA, LOGL_INFO, "RUA rx Connectionless Transfer\n");
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hnb_rua_cl_handle(hnb, &pdu->choice.successfulOutcome.value);
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break;
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case RUA_ProcedureCode_id_Connect:
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LOGP(DRUA, LOGL_INFO, "RUA rx Connect\n");
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break;
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case RUA_ProcedureCode_id_DirectTransfer:
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LOGP(DRUA, LOGL_INFO, "RUA rx DirectTransfer\n");
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hnb_rua_dt_handle(hnb, &pdu->choice.successfulOutcome.value);
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break;
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case RUA_ProcedureCode_id_Disconnect:
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LOGP(DRUA, LOGL_INFO, "RUA rx Disconnect\n");
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break;
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case RUA_ProcedureCode_id_ErrorIndication:
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LOGP(DRUA, LOGL_INFO, "RUA rx ErrorIndication\n");
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break;
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case RUA_ProcedureCode_id_privateMessage:
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LOGP(DRUA, LOGL_INFO, "RUA rx privateMessage\n");
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break;
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default:
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LOGP(DRUA, LOGL_INFO, "RUA rx unknown message\n");
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break;
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}
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return 0;
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}
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