Files
openairinterface5g/openair2/M2AP/m2ap_handler.c
Robert Schmidt 8107939f08 Change OAI license to CSSL v1.0 (and others)
- all RAN code, CI code, configuration files, dockerfiles, in CSSL v1.0
- all deployment code (openshift, charts, ancillary files like shell
  scripts), in MIT
- documentation in CC-BY-4.0
- exceptions might apply and are listed in NOTICE
- there is a new LICENSES folder with all licenses
- CONTRIBUTIONS.md has been updated accordingly

For automated changes based on OAI PL v1.1:

    perl -i~ -0pe 's/\/\*.*Licensed to the OpenAirInterface.*openairinterface.org\n#?/\/*\n * SPDX-License-Identifier: LicenseRef-CSSL-1.0\n/s' **/*.{c,h,cpp}
    perl -i~ -0pe 's/\/\*.*Licensed to the OpenAirInterface.*openairinterface.org\n#?/\/*\n * SPDX-License-Identifier: LicenseRef-CSSL-1.0\n/s' **/*.ts
    perl -i~ -0pe 's/<!--.*Licensed to the OpenAirInterface.*openairinterface.org\n.*-->/<!-- SPDX-License-Identifier: LicenseRef-CSSL-1.0 -->/s' **/*.xml

The rest (cmake, files with missing license, cmake) manually.
2026-03-27 16:36:37 +01:00

105 lines
3.5 KiB
C

/*
* SPDX-License-Identifier: LicenseRef-CSSL-1.0
*/
/*!
* \brief m2ap handler procedures for eNB
*/
#include <stdint.h>
#include "intertask_interface.h"
#include "asn1_conversions.h"
#include "m2ap_common.h"
#include "m2ap_eNB_defs.h"
//#include "m2ap_handler.h"
#include "m2ap_decoder.h"
#include "m2ap_ids.h"
//#include "m2ap_eNB_management_procedures.h"
#include "m2ap_eNB_generate_messages.h"
#include "m2ap_MCE_interface_management.h"
#include "m2ap_eNB_interface_management.h"
#include "assertions.h"
#include "conversions.h"
/* Handlers matrix. Only eNB related procedure present here */
static const m2ap_message_decoded_callback m2ap_messages_callback[][3] = {
{eNB_handle_MBMS_SESSION_START_REQUEST, MCE_handle_MBMS_SESSION_START_RESPONSE, 0}, /* MBMSSessionStart */
{eNB_handle_MBMS_SESSION_STOP_REQUEST, MCE_handle_MBMS_SESSION_STOP_RESPONSE, 0}, /* MBMSSessionStop */
{eNB_handle_MBMS_SCHEDULING_INFORMATION, MCE_handle_MBMS_SCHEDULING_INFORMATION_RESPONSE, 0}, /* MBMSSchedulingInformation */
{0, 0, 0}, /* Error Indication */
{0, 0, 0}, /* Reset */
{MCE_handle_M2_SETUP_REQUEST, eNB_handle_M2_SETUP_RESPONSE, eNB_handle_M2_SETUP_FAILURE}, /* M2 Setup */
{0, 0, 0}, /* eNBConfigurationUpdate */
{0, 0, 0}, /* MCEConfigurationUpdate */
{0, 0, 0}, /* privateMessage */
{0, 0, 0}, /* MBMSSessionUpdate */
{0, 0, 0}, /* MBMSServiceCounting */
{0, 0, 0}, /* MBMSServiceCountingResultReport */
{0, 0, 0} /* MBMSOverloadNotification */
};
static char *m2ap_direction2String(int m2ap_dir) {
static char *m2ap_direction_String[] = {
"", /* Nothing */
"Originating message", /* originating message */
"Successfull outcome", /* successfull outcome */
"UnSuccessfull outcome", /* successfull outcome */
};
return(m2ap_direction_String[m2ap_dir]);
}
int m2ap_handle_message(instance_t instance,
sctp_assoc_t assoc_id,
int32_t stream,
const uint8_t *const data,
const uint32_t data_length)
{
M2AP_M2AP_PDU_t pdu;
int ret;
DevAssert(data != NULL);
memset(&pdu, 0, sizeof(pdu));
if (m2ap_decode_pdu(&pdu, data, data_length) < 0) {
LOG_E(M2AP, "Failed to decode PDU\n");
return -1;
}
/* Checking procedure Code and direction of message */
if (pdu.choice.initiatingMessage.procedureCode > sizeof(m2ap_messages_callback) / (3 * sizeof(
m2ap_message_decoded_callback))
|| (pdu.present > M2AP_M2AP_PDU_PR_unsuccessfulOutcome)) {
LOG_E(M2AP, "[SCTP %d] Either procedureCode %ld or direction %d exceed expected\n",
assoc_id, pdu.choice.initiatingMessage.procedureCode, pdu.present);
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_M2AP_M2AP_PDU, &pdu);
return -1;
}
/* No handler present.
* This can mean not implemented or no procedure for eNB (wrong direction).
*/
if (m2ap_messages_callback[pdu.choice.initiatingMessage.procedureCode][pdu.present - 1] == NULL) {
LOG_E(M2AP, "[SCTP %d] No handler for procedureCode %ld in %s\n",
assoc_id, pdu.choice.initiatingMessage.procedureCode,
m2ap_direction2String(pdu.present - 1));
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_M2AP_M2AP_PDU, &pdu);
return -1;
}
/* Calling the right handler */
LOG_I(M2AP, "Calling handler with instance %d\n",instance);
ret = (*m2ap_messages_callback[pdu.choice.initiatingMessage.procedureCode][pdu.present - 1])
(instance, assoc_id, stream, &pdu);
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_M2AP_M2AP_PDU, &pdu);
return ret;
}