189 lines
7.9 KiB
C
189 lines
7.9 KiB
C
/*
|
|
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership.
|
|
* The OpenAirInterface Software Alliance licenses this file to You under
|
|
* the OAI Public License, Version 1.1 (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.openairinterface.org/?page_id=698
|
|
*
|
|
* 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.
|
|
*-------------------------------------------------------------------------------
|
|
* For more information about the OpenAirInterface (OAI) Software Alliance:
|
|
* contact@openairinterface.org
|
|
*/
|
|
|
|
#include "PduSessionEstablishmentAccept.h"
|
|
#include "common/utils/LOG/log.h"
|
|
#include "nr_nas_msg_sim.h"
|
|
#include "openair2/RRC/NAS/nas_config.h"
|
|
#include "openair2/SDAP/nr_sdap/nr_sdap.h"
|
|
|
|
extern char *baseNetAddress;
|
|
|
|
void capture_pdu_session_establishment_accept_msg(uint8_t *buffer, uint32_t msg_length)
|
|
{
|
|
uint8_t offset = 0;
|
|
security_protected_nas_5gs_msg_t sec_nas_hdr;
|
|
security_protected_plain_nas_5gs_msg_t sec_nas_msg;
|
|
pdu_session_establishment_accept_msg_t psea_msg;
|
|
sec_nas_hdr.epd = *(buffer + (offset++));
|
|
sec_nas_hdr.sht = *(buffer + (offset++));
|
|
sec_nas_hdr.mac = htonl(*(uint32_t *)(buffer + offset));
|
|
offset+=sizeof(sec_nas_hdr.mac);
|
|
sec_nas_hdr.sqn = *(buffer + (offset++));
|
|
sec_nas_msg.epd = *(buffer + (offset++));
|
|
sec_nas_msg.sht = *(buffer + (offset++));
|
|
sec_nas_msg.msg_type = *(buffer + (offset++));
|
|
sec_nas_msg.payload_type = *(buffer + (offset++));
|
|
sec_nas_msg.payload_len = htons(*(uint16_t *)(buffer + offset));
|
|
offset+=sizeof(sec_nas_msg.payload_len);
|
|
/* Mandatory Presence IEs */
|
|
psea_msg.epd = *(buffer + (offset++));
|
|
psea_msg.pdu_id = *(buffer + (offset++));
|
|
psea_msg.pti = *(buffer + (offset++));
|
|
psea_msg.msg_type = *(buffer + (offset++));
|
|
psea_msg.pdu_type = *(buffer + offset) & 0x0f;
|
|
psea_msg.ssc_mode = (*(buffer + (offset++)) & 0xf0) >> 4;
|
|
psea_msg.qos_rules.length = htons(*(uint16_t *)(buffer + offset));
|
|
offset+=sizeof(psea_msg.qos_rules.length);
|
|
/* Supports the capture of only one QoS Rule, it should be changed for multiple QoS Rules */
|
|
qos_rule_t qos_rule;
|
|
qos_rule.id = *(buffer + (offset++));
|
|
qos_rule.length = htons(*(uint16_t *)(buffer + offset));
|
|
offset+=sizeof(qos_rule.length);
|
|
qos_rule.oc = (*(buffer + offset) & 0xE0) >> 5;
|
|
qos_rule.dqr = (*(buffer + offset) & 0x10) >> 4;
|
|
qos_rule.nb_pf = *(buffer + (offset++)) & 0x0F;
|
|
|
|
if(qos_rule.nb_pf) {
|
|
packet_filter_t pf;
|
|
|
|
if(qos_rule.oc == ROC_CREATE_NEW_QOS_RULE ||
|
|
ROC_MODIFY_QOS_RULE_ADD_PF ||
|
|
ROC_MODIFY_QOS_RULE_REPLACE_PF) {
|
|
pf.pf_type.type_1.pf_dir = (*(buffer + offset) & 0x30) >> 4;
|
|
pf.pf_type.type_1.pf_id = *(buffer + offset++) & 0x0F;
|
|
pf.pf_type.type_1.length = *(buffer + offset++);
|
|
offset += (qos_rule.nb_pf * pf.pf_type.type_1.length); /* Ommit the Packet filter List */
|
|
} else if (qos_rule.oc == ROC_MODIFY_QOS_RULE_DELETE_PF) {
|
|
offset += qos_rule.nb_pf;
|
|
}
|
|
}
|
|
|
|
qos_rule.prcd = *(buffer + offset++);
|
|
qos_rule.qfi = *(buffer + offset++);
|
|
psea_msg.sess_ambr.length = *(buffer + offset++);
|
|
offset += psea_msg.sess_ambr.length; /* Ommit the Seassion-AMBR */
|
|
|
|
/* Optional Presence IEs */
|
|
uint8_t psea_iei = *(buffer + offset++);
|
|
|
|
while(offset < msg_length) {
|
|
switch (psea_iei) {
|
|
case IEI_5GSM_CAUSE: /* Ommited */
|
|
LOG_T(NAS, "PDU SESSION ESTABLISHMENT ACCEPT - Received 5GSM Cause IEI\n");
|
|
offset++;
|
|
break;
|
|
|
|
case IEI_PDU_ADDRESS:
|
|
LOG_T(NAS, "PDU SESSION ESTABLISHMENT ACCEPT - Received PDU Address IE\n");
|
|
psea_msg.pdu_addr_ie.pdu_length = *(buffer + offset++);
|
|
psea_msg.pdu_addr_ie.pdu_type = *(buffer + offset++);
|
|
|
|
if (psea_msg.pdu_addr_ie.pdu_type == PDU_SESSION_TYPE_IPV4) {
|
|
psea_msg.pdu_addr_ie.pdu_addr_oct1 = *(buffer + offset++);
|
|
psea_msg.pdu_addr_ie.pdu_addr_oct2 = *(buffer + offset++);
|
|
psea_msg.pdu_addr_ie.pdu_addr_oct3 = *(buffer + offset++);
|
|
psea_msg.pdu_addr_ie.pdu_addr_oct4 = *(buffer + offset++);
|
|
nas_getparams();
|
|
sprintf(baseNetAddress, "%d.%d", psea_msg.pdu_addr_ie.pdu_addr_oct1, psea_msg.pdu_addr_ie.pdu_addr_oct2);
|
|
nas_config(1, psea_msg.pdu_addr_ie.pdu_addr_oct3, psea_msg.pdu_addr_ie.pdu_addr_oct4, "oaitun_ue");
|
|
LOG_T(NAS, "PDU SESSION ESTABLISHMENT ACCEPT - Received UE IP: %d.%d.%d.%d\n",
|
|
psea_msg.pdu_addr_ie.pdu_addr_oct1,
|
|
psea_msg.pdu_addr_ie.pdu_addr_oct2,
|
|
psea_msg.pdu_addr_ie.pdu_addr_oct3,
|
|
psea_msg.pdu_addr_ie.pdu_addr_oct4);
|
|
} else {
|
|
offset += psea_msg.pdu_addr_ie.pdu_length;
|
|
}
|
|
|
|
psea_iei = *(buffer + offset++);
|
|
break;
|
|
|
|
case IEI_RQ_TIMER_VALUE: /* Ommited */
|
|
LOG_T(NAS, "PDU SESSION ESTABLISHMENT ACCEPT - Received RQ timer value IE\n");
|
|
offset++; /* TS 24.008 10.5.7.3 */
|
|
psea_iei = *(buffer + offset++);
|
|
break;
|
|
|
|
case IEI_SNSSAI: /* Ommited */
|
|
LOG_T(NAS, "PDU SESSION ESTABLISHMENT ACCEPT - Received S-NSSAI IE\n");
|
|
uint8_t snssai_length = *(buffer + offset);
|
|
offset += (snssai_length + sizeof(snssai_length));
|
|
psea_iei = *(buffer + offset++);
|
|
break;
|
|
|
|
case IEI_ALWAYSON_PDU: /* Ommited */
|
|
LOG_T(NAS, "PDU SESSION ESTABLISHMENT ACCEPT - Received Always-on PDU Session indication IE\n");
|
|
offset++;
|
|
psea_iei = *(buffer + offset++);
|
|
break;
|
|
|
|
case IEI_MAPPED_EPS: /* Ommited */
|
|
LOG_T(NAS, "PDU SESSION ESTABLISHMENT ACCEPT - Received Mapped EPS bearer context IE\n");
|
|
uint16_t mapped_eps_length = htons(*(uint16_t *)(buffer + offset));
|
|
offset += mapped_eps_length;
|
|
psea_iei = *(buffer + offset++);
|
|
break;
|
|
|
|
case IEI_EAP_MSG: /* Ommited */
|
|
LOG_T(NAS, "PDU SESSION ESTABLISHMENT ACCEPT - Received EAP message IE\n");
|
|
uint16_t eap_length = htons(*(uint16_t *)(buffer + offset));
|
|
offset += (eap_length + sizeof(eap_length));
|
|
psea_iei = *(buffer + offset++);
|
|
break;
|
|
|
|
case IEI_AUTH_QOS_DESC: /* Ommited */
|
|
LOG_T(NAS, "PDU SESSION ESTABLISHMENT ACCEPT - Received Authorized QoS flow descriptions IE\n");
|
|
psea_msg.qos_fd_ie.length = htons(*(uint16_t *)(buffer + offset));
|
|
offset += (psea_msg.qos_fd_ie.length + sizeof(psea_msg.qos_fd_ie.length));
|
|
psea_iei = *(buffer + offset++);
|
|
break;
|
|
|
|
case IEI_EXT_CONF_OPT: /* Ommited */
|
|
LOG_T(NAS, "PDU SESSION ESTABLISHMENT ACCEPT - Received Extended protocol configuration options IE\n");
|
|
psea_msg.ext_pp_ie.length = htons(*(uint16_t *)(buffer + offset));
|
|
offset += (psea_msg.ext_pp_ie.length + sizeof(psea_msg.ext_pp_ie.length ));
|
|
psea_iei = *(buffer + offset++);
|
|
break;
|
|
|
|
case IEI_DNN:
|
|
LOG_T(NAS, "PDU SESSION ESTABLISHMENT ACCEPT - Received DNN IE\n");
|
|
psea_msg.dnn_ie.dnn_length = *(buffer + offset++);
|
|
char apn[APN_MAX_LEN];
|
|
|
|
for (int i = 0 ; i < psea_msg.dnn_ie.dnn_length ; ++i)
|
|
apn[i] = *(buffer + offset + i);
|
|
|
|
LOG_T(NAS, "PDU SESSION ESTABLISHMENT ACCEPT - APN: %s\n", apn);
|
|
offset += psea_msg.dnn_ie.dnn_length;
|
|
psea_iei = *(buffer + offset++);
|
|
break;
|
|
|
|
default:
|
|
LOG_T(NAS, "PDU SESSION ESTABLISHMENT ACCEPT - Not known IE\n");
|
|
offset = msg_length;
|
|
break;
|
|
}
|
|
}
|
|
|
|
set_qfi_pduid(qos_rule.qfi, psea_msg.pdu_id);
|
|
return;
|
|
} |