Melissa Elkadi
4f1d543478
At this point we can see the UDP uplink data getting to the GTP layer of the gNB. This only works if you change the memcpy in serialize_sdu() to not have the encoded.byte
107 lines
4.0 KiB
C
107 lines
4.0 KiB
C
/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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#include "nr_pdcp_entity_drb_am.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "common/utils/LOG/log.h"
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#include "assertions.h"
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void nr_pdcp_entity_drb_am_recv_pdu(nr_pdcp_entity_t *_entity, char *buffer, int size)
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{
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nr_pdcp_entity_drb_am_t *entity = (nr_pdcp_entity_drb_am_t *)_entity;
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int sn;
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if (size < 3) {
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LOG_I(PDCP, "Size < 3. Size = %d. No data, so discarding.", size);
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return;
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}
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if (!(buffer[0] & 0x80))
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LOG_E(PDCP, "%s:%d:%s: fatal\n", __FILE__, __LINE__, __FUNCTION__);
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sn = (((unsigned char)buffer[0] & 0x3) << 16) |
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((unsigned char)buffer[1] << 8) |
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(unsigned char)buffer[2];
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if (entity->common.has_ciphering)
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entity->common.cipher(entity->common.security_context, (unsigned char *)buffer+3, size-3,
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entity->rb_id, sn, entity->common.is_gnb ? 0 : 1);
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LOG_I(RLC, "Melissa Elkadi, calling deliver SDU to send to PDCP from RLC %s\n", __FUNCTION__);
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entity->common.deliver_sdu(entity->common.deliver_sdu_data,
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(nr_pdcp_entity_t *)entity, buffer+3, size-3);
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}
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void nr_pdcp_entity_drb_am_recv_sdu(nr_pdcp_entity_t *_entity, char *buffer, int size,
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int sdu_id)
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{
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nr_pdcp_entity_drb_am_t *entity = (nr_pdcp_entity_drb_am_t *)_entity;
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int sn;
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char buf[size+3];
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char buf_mel[1024];
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hexdump(buffer, size, buf_mel, sizeof(buf_mel));
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LOG_I(PDCP, "Melissa Elkadi in %s, this is hexdump of pdu %s recevied in PDCP layer directly\n",
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__FUNCTION__, buf_mel);
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sn = entity->common.next_nr_pdcp_tx_sn;
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entity->common.next_nr_pdcp_tx_sn++;
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if (entity->common.next_nr_pdcp_tx_sn > entity->common.maximum_nr_pdcp_sn) {
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entity->common.next_nr_pdcp_tx_sn = 0;
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entity->common.tx_hfn++;
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}
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buf[0] = 0x80 | ((sn >> 16) & 0x3);
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buf[1] = (sn >> 8) & 0xff;
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buf[2] = sn & 0xff;
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memcpy(buf+3, buffer, size);
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char buf_melissa[1024];
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hexdump(buf+3, size, buf_melissa, sizeof(buf_melissa));
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LOG_I(PDCP, "Melissa Elkadi in %s, this is hexdump of pdu %s copied into buf+3 in PDCP. And this is the sdu_id %d\n",
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__FUNCTION__, buf_melissa, sdu_id);
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if (entity->common.has_ciphering)
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entity->common.cipher(entity->common.security_context, (unsigned char *)buf+3, size,
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entity->rb_id, sn, entity->common.is_gnb ? 1 : 0);
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entity->common.deliver_pdu(entity->common.deliver_pdu_data,
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(nr_pdcp_entity_t *)entity, buf, size+3, sdu_id);
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char buf_meli[1024];
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hexdump(buf, size + 3, buf_meli, sizeof(buf_meli));
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LOG_I(PDCP, "Melissa Elkadi in %s, this is hexdump of pdu %s After delivering to RLC\n",
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__FUNCTION__, buf_meli);
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}
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void nr_pdcp_entity_drb_am_set_integrity_key(nr_pdcp_entity_t *_entity, char *key)
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{
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/* nothing to do */
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}
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void nr_pdcp_entity_drb_am_delete(nr_pdcp_entity_t *_entity)
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{
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nr_pdcp_entity_drb_am_t *entity = (nr_pdcp_entity_drb_am_t *)_entity;
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if (entity->common.free_security != NULL)
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entity->common.free_security(entity->common.security_context);
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free(entity);
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}
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