src/s11/handlers/s11_RB_resp_handler.c

/*
 * Copyright (c) 2019, Infosys Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <stdio.h>
#include <stdlib.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <string.h>
#include <pthread.h>

#include "err_codes.h"
#include "options.h"
#include "ipc_api.h"
#include "message_queues.h"
#include "s11.h"
#include "s11_config.h"
#include "msgType.h"
//#include "stage8_info.h"
#include "../../gtpV2Codec/gtpV2StackWrappers.h"

/*Globals and externs*/
extern int g_resp_fd;
extern struct GtpV2Stack* gtpStack_gp;

/*End : globals and externs*/

int
s11_RB_resp_handler(MsgBuffer* message, GtpV2MessageHeader* hdr)
{	
	struct gtp_incoming_msg_data_t rbr_info;
	
	/*****Message structure***
	*/
	log_msg(LOG_INFO, "Parse S11 RB resp message\n");
	
	//TODO : check cause for the result verification
	
	rbr_info.ue_idx = hdr->teid;
	rbr_info.msg_type = release_bearer_response;
	
	ReleaseAccessBearersResponseMsgData msgData;
        memset(&msgData, 0, sizeof(ReleaseAccessBearersResponseMsgData));

        bool rc = GtpV2Stack_decodeMessage(gtpStack_gp, hdr, message, &msgData);
        if(rc == false)
        {
                        log_msg(LOG_ERROR, "s11_RB_resp_handler: "
                                                                "Failed to decode Release Access Bearer Response Msg %d\n",
                                                                hdr->teid);
                        return E_PARSING_FAILED;
        }

			
	rbr_info.destInstAddr = htonl(mmeAppInstanceNum_c);
	rbr_info.srcInstAddr = htonl(s11AppInstanceNum_c);

	/*Send CS response msg*/
	send_tipc_message(g_resp_fd, mmeAppInstanceNum_c, (char *)&rbr_info, GTP_READ_MSG_BUF_SIZE);
	log_msg(LOG_INFO, "Send RB resp to mme-app stage2.\n");

	return SUCCESS;
}