Robert Schmidt
8107939f08
- 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.
95 lines
2.6 KiB
C
95 lines
2.6 KiB
C
/*
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* SPDX-License-Identifier: LicenseRef-CSSL-1.0
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*/
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/*!
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* \brief s1ap procedures for overload messages within eNB
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include "intertask_interface.h"
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#include "s1ap_common.h"
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#include "s1ap_eNB_defs.h"
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#include "s1ap_eNB.h"
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#include "s1ap_eNB_ue_context.h"
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#include "s1ap_eNB_encoder.h"
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#include "s1ap_eNB_overload.h"
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#include "s1ap_eNB_management_procedures.h"
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#include "assertions.h"
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int s1ap_eNB_handle_overload_start(sctp_assoc_t assoc_id, uint32_t stream, S1AP_S1AP_PDU_t *pdu)
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{
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s1ap_eNB_mme_data_t *mme_desc_p;
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S1AP_OverloadStart_t *container;
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S1AP_OverloadStartIEs_t *ie;
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DevAssert(pdu != NULL);
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container = &pdu->choice.initiatingMessage.value.choice.OverloadStart;
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S1AP_FIND_PROTOCOLIE_BY_ID(S1AP_OverloadStartIEs_t, ie, container,
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S1AP_ProtocolIE_ID_id_OverloadResponse, true);
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if (ie != NULL) {
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DevCheck(ie->value.choice.OverloadResponse.present ==
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S1AP_OverloadResponse_PR_overloadAction,
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S1AP_OverloadResponse_PR_overloadAction, 0, 0);
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}
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else
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{
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return -1;
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}
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/* Non UE-associated signalling -> stream 0 */
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if (stream != 0) {
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S1AP_ERROR("[SCTP %u] Received s1 overload start on stream != 0 (%u)\n",
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assoc_id, stream);
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return -1;
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}
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if ((mme_desc_p = s1ap_eNB_get_MME(NULL, assoc_id, 0)) == NULL) {
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/* No MME context associated */
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return -1;
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}
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/* Mark the MME as overloaded and set the overload state according to
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* the value received.
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*/
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mme_desc_p->state = S1AP_ENB_OVERLOAD;
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mme_desc_p->overload_state =
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ie->value.choice.OverloadResponse.choice.overloadAction;
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return 0;
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}
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int s1ap_eNB_handle_overload_stop(sctp_assoc_t assoc_id, uint32_t stream, S1AP_S1AP_PDU_t *pdu)
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{
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/* We received Overload stop message, meaning that the MME is no more
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* overloaded. This is an empty message, with only message header and no
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* Information Element.
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*/
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DevAssert(pdu != NULL);
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s1ap_eNB_mme_data_t *mme_desc_p;
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/* Non UE-associated signalling -> stream 0 */
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if (stream != 0) {
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S1AP_ERROR("[SCTP %u] Received s1 overload stop on stream != 0 (%u)\n",
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assoc_id, stream);
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return -1;
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}
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if ((mme_desc_p = s1ap_eNB_get_MME(NULL, assoc_id, 0)) == NULL) {
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/* No MME context associated */
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return -1;
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}
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mme_desc_p->state = S1AP_ENB_STATE_CONNECTED;
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mme_desc_p->overload_state = S1AP_NO_OVERLOAD;
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return 0;
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}
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