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openairinterface5g/openair-cn/GTPV1-U/gtpv1u_eNB.c
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/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France.
*******************************************************************************/
/*! \file gtpv1u_eNB.c
* \brief
* \author Sebastien ROUX, Lionel GAUTHIER
* \version 1.0
* \company Eurecom
* \email: lionel.gauthier@eurecom.fr
*/
#include <stdio.h>
#include <errno.h>
#include "mme_config.h"
#include "assertions.h"
#include "intertask_interface.h"
#include "timer.h"
#include "msc.h"
#include "gtpv1u.h"
#include "NwGtpv1u.h"
#include "NwGtpv1uMsg.h"
#include "NwGtpv1uPrivate.h"
#include "NwLog.h"
#include "gtpv1u_eNB_defs.h"
#include "gtpv1_u_messages_types.h"
#include "udp_eNB_task.h"
#include "UTIL/LOG/log.h"
#include "COMMON/platform_types.h"
#include "COMMON/platform_constants.h"
#include "UTIL/LOG/vcd_signal_dumper.h"
#undef GTP_DUMP_SOCKET
extern boolean_t pdcp_data_req(
const protocol_ctxt_t* const ctxt_pP,
const srb_flag_t srb_flagP,
const rb_id_t rb_idP,
const mui_t muiP,
const confirm_t confirmP,
const sdu_size_t sdu_buffer_sizeP,
unsigned char *const sdu_buffer_pP,
const pdcp_transmission_mode_t modeP);
extern unsigned char NB_eNB_INST;
static int
gtpv1u_eNB_send_init_udp(
uint16_t port_number);
NwGtpv1uRcT
gtpv1u_eNB_log_request(
NwGtpv1uLogMgrHandleT hLogMgr,
uint32_t logLevel,
NwCharT *file,
uint32_t line,
NwCharT *logStr);
NwGtpv1uRcT
gtpv1u_eNB_send_udp_msg(
NwGtpv1uUdpHandleT udpHandle,
uint8_t *buffer,
uint32_t buffer_len,
uint32_t buffer_offset,
uint32_t peerIpAddr,
uint16_t peerPort);
NwGtpv1uRcT
gtpv1u_eNB_process_stack_req(
NwGtpv1uUlpHandleT hUlp,
NwGtpv1uUlpApiT *pUlpApi);
int
data_recv_callback(
uint16_t portP,
uint32_t address,
uint8_t *buffer,
uint32_t length,
void *arg_p);
//int
//gtpv1u_create_tunnel_endpoint(
// gtpv1u_data_t *gtpv1u_data_pP,
// uint8_t ue_idP,
// uint8_t rab_idP,
// char *sgw_ip_addr_pP,
// uint16_t portP);
static NwGtpv1uRcT
gtpv1u_start_timer_wrapper(
NwGtpv1uTimerMgrHandleT tmrMgrHandle,
uint32_t timeoutSec,
uint32_t timeoutUsec,
uint32_t tmrType,
void *timeoutArg,
NwGtpv1uTimerHandleT *hTmr);
static NwGtpv1uRcT
gtpv1u_stop_timer_wrapper(
NwGtpv1uTimerMgrHandleT tmrMgrHandle,
NwGtpv1uTimerHandleT hTmr);
int
gtpv1u_initial_req(
gtpv1u_data_t *gtpv1u_data_pP,
teid_t teidP,
tcp_udp_port_t portP,
uint32_t address);
int
gtpv1u_new_data_req(
uint8_t enb_module_idP,
rnti_t ue_rntiP,
uint8_t rab_idP,
uint8_t *buffer_pP,
uint32_t buf_lenP,
uint32_t buf_offsetP
);
static int
gtpv1u_create_s1u_tunnel(
const instance_t instanceP,
const gtpv1u_enb_create_tunnel_req_t * const create_tunnel_req_pP);
static int
gtpv1u_delete_s1u_tunnel(
const instance_t instanceP,
const gtpv1u_enb_delete_tunnel_req_t * const req_pP);
static int
gtpv1u_eNB_init(void);
void *
gtpv1u_eNB_task(void *args);
static gtpv1u_data_t gtpv1u_data_g;
#if defined(GTP_DUMP_SOCKET) && GTP_DUMP_SOCKET > 0
#include <linux/if.h>
static int gtpv1u_dump_socket_g;
//-----------------------------------------------------------------------------
int gtpv1u_eNB_create_dump_socket(void)
{
struct ifreq ifr;
int hdrincl=1;
if ((gtpv1u_dump_socket_g = socket(AF_INET, SOCK_RAW, IPPROTO_RAW)) < 0 ) {
LOG_E(GTPU, "Could not create dump socket %d:%s\n", errno, strerror(errno));
return -1;
}
if (setsockopt(gtpv1u_dump_socket_g,
IPPROTO_IP,
IP_HDRINCL,
&hdrincl,
sizeof(hdrincl))==-1) {
LOG_E(GTPU, "%s:%d set IP_HDRINCL %d:%s\n",
__FILE__, __LINE__, errno, strerror(errno));
}
memset(&ifr, 0, sizeof(ifr));
snprintf(ifr.ifr_name, sizeof(ifr.ifr_name), "lo");
if (setsockopt(gtpv1u_dump_socket_g, SOL_SOCKET, SO_BINDTODEVICE, (void *)&ifr, sizeof(ifr)) < 0) {
LOG_E(GTPU, "%s:%d setsockopt SO_BINDTODEVICE %d:%s\n",
__FILE__, __LINE__, errno, strerror(errno));
close(gtpv1u_dump_socket_g);
return -1;
}
}
//-----------------------------------------------------------------------------
static void gtpv1u_eNB_write_dump_socket(uint8_t *buffer_pP, uint32_t buffer_lengthP)
{
struct sockaddr_in sin;
memset(&sin, 0, sizeof(sin));
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = INADDR_LOOPBACK;
if (sendto(gtpv1u_dump_socket_g, buffer_pP, (size_t)buffer_lengthP, 0, (struct sockaddr *)&sin, sizeof(struct sockaddr)) < 0) {
LOG_E(GTPU, "%s:%s:%d sendto %d:%s\n",
__FILE__, __FUNCTION__, __LINE__, errno, strerror(errno));
}
}
#endif
//-----------------------------------------------------------------------------
static int gtpv1u_eNB_send_init_udp(uint16_t port_number)
{
// Create and alloc new message
MessageDef *message_p;
struct in_addr addr;
message_p = itti_alloc_new_message(TASK_GTPV1_U, UDP_INIT);
if (message_p == NULL) {
return -1;
}
UDP_INIT(message_p).port = port_number;
//LG UDP_INIT(message_p).address = "0.0.0.0"; //ANY address
addr.s_addr = gtpv1u_data_g.enb_ip_address_for_S1u_S12_S4_up;
UDP_INIT(message_p).address = inet_ntoa(addr);
LOG_D(GTPU, "Tx UDP_INIT IP addr %s\n", UDP_INIT(message_p).address);
MSC_LOG_EVENT(
MSC_GTPU_ENB,
"0 UDP bind %s:%u",
UDP_INIT(message_p).address,
UDP_INIT(message_p).port);
return itti_send_msg_to_task(TASK_UDP, INSTANCE_DEFAULT, message_p);
}
//-----------------------------------------------------------------------------
NwGtpv1uRcT gtpv1u_eNB_log_request(NwGtpv1uLogMgrHandleT hLogMgr,
uint32_t logLevel,
NwCharT *file,
uint32_t line,
NwCharT *logStr)
{
LOG_D(GTPU, "%s\n", logStr);
return NW_GTPV1U_OK;
}
//-----------------------------------------------------------------------------
NwGtpv1uRcT gtpv1u_eNB_send_udp_msg(
NwGtpv1uUdpHandleT udpHandle,
uint8_t *buffer,
uint32_t buffer_len,
uint32_t buffer_offset,
uint32_t peerIpAddr,
uint16_t peerPort)
{
// Create and alloc new message
MessageDef *message_p = NULL;
udp_data_req_t *udp_data_req_p = NULL;
message_p = itti_alloc_new_message(TASK_GTPV1_U, UDP_DATA_REQ);
if (message_p) {
#if defined(LOG_GTPU) && LOG_GTPU > 0
LOG_D(GTPU, "Sending UDP_DATA_REQ length %u offset %u", buffer_len, buffer_offset);
#endif
udp_data_req_p = &message_p->ittiMsg.udp_data_req;
udp_data_req_p->peer_address = peerIpAddr;
udp_data_req_p->peer_port = peerPort;
udp_data_req_p->buffer = buffer;
udp_data_req_p->buffer_length = buffer_len;
udp_data_req_p->buffer_offset = buffer_offset;
return itti_send_msg_to_task(TASK_UDP, INSTANCE_DEFAULT, message_p);
} else {
return NW_GTPV1U_FAILURE;
}
}
//-----------------------------------------------------------------------------
/* Callback called when a gtpv1u message arrived on UDP interface */
NwGtpv1uRcT gtpv1u_eNB_process_stack_req(
NwGtpv1uUlpHandleT hUlp,
NwGtpv1uUlpApiT *pUlpApi)
{
int result = 0;
teid_t teid = 0;
hashtable_rc_t hash_rc = HASH_TABLE_KEY_NOT_EXISTS;
gtpv1u_teid_data_t *gtpv1u_teid_data_p = NULL;
protocol_ctxt_t ctxt;
switch(pUlpApi->apiType) {
/* Here there are two type of messages handled:
* - T-PDU
* - END-MARKER
*/
case NW_GTPV1U_ULP_API_RECV_TPDU: {
uint8_t buffer[4096];
uint32_t buffer_len;
/* Nw-gptv1u stack has processed a PDU. we can schedule it to PDCP
* for transmission.
*/
teid = pUlpApi->apiInfo.recvMsgInfo.teid;
if (NW_GTPV1U_OK != nwGtpv1uMsgGetTpdu(pUlpApi->apiInfo.recvMsgInfo.hMsg,
buffer, &buffer_len)) {
LOG_E(GTPU, "Error while retrieving T-PDU");
}
itti_free(TASK_UDP, ((NwGtpv1uMsgT*)pUlpApi->apiInfo.recvMsgInfo.hMsg)->msgBuf);
#if defined(GTP_DUMP_SOCKET) && GTP_DUMP_SOCKET > 0
gtpv1u_eNB_write_dump_socket(buffer,buffer_len);
#endif
//-----------------------
// GTPV1U->PDCP mapping
//-----------------------
hash_rc = hashtable_get(gtpv1u_data_g.teid_mapping, teid, (void**)&gtpv1u_teid_data_p);
if (hash_rc == HASH_TABLE_OK) {
#if defined(LOG_GTPU) && LOG_GTPU > 0
LOG_D(GTPU, "Received T-PDU from gtpv1u stack teid %u size %d -> enb module id %u ue module id %u rab id %u\n",
teid,
buffer_len,
gtpv1u_teid_data_p->enb_id,
gtpv1u_teid_data_p->ue_id,
gtpv1u_teid_data_p->eps_bearer_id);
#endif
#warning "LG eps bearer mapping to DRB id to do (offset -4)"
PROTOCOL_CTXT_SET_BY_MODULE_ID(&ctxt, gtpv1u_teid_data_p->enb_id, ENB_FLAG_YES, gtpv1u_teid_data_p->ue_id, 0, 0,gtpv1u_teid_data_p->enb_id);
MSC_LOG_TX_MESSAGE(
MSC_GTPU_ENB,
MSC_PDCP_ENB,
NULL,0,
MSC_AS_TIME_FMT" DATA-REQ rb %u size %u",
0,0,
(gtpv1u_teid_data_p->eps_bearer_id) ? gtpv1u_teid_data_p->eps_bearer_id - 4: 5-4,
buffer_len);
result = pdcp_data_req(
&ctxt,
SRB_FLAG_NO,
(gtpv1u_teid_data_p->eps_bearer_id) ? gtpv1u_teid_data_p->eps_bearer_id - 4: 5-4,
0, // mui
SDU_CONFIRM_NO, // confirm
buffer_len,
buffer,
PDCP_TRANSMISSION_MODE_DATA);
AssertError (result == TRUE, return NW_GTPV1U_FAILURE ,"PDCP data request failed!\n");
} else {
LOG_E(GTPU, "Received T-PDU from gtpv1u stack teid %u unknown size %u", teid, buffer_len);
}
}
break;
default: {
LOG_E(GTPU, "Received undefined UlpApi (%02x) from gtpv1u stack!\n",
pUlpApi->apiType);
}
}
return NW_GTPV1U_OK;
}
//-----------------------------------------------------------------------------
int data_recv_callback(uint16_t portP,
uint32_t address,
uint8_t *buffer,
uint32_t length,
void *arg_p)
{
gtpv1u_data_t *gtpv1u_data_p;
if (arg_p == NULL) {
return -1;
}
gtpv1u_data_p = (gtpv1u_data_t *)arg_p;
return nwGtpv1uProcessUdpReq(gtpv1u_data_p->gtpv1u_stack,
buffer,
length,
portP,
address);
}
//int
//gtpv1u_create_tunnel_endpoint(
// gtpv1u_data_t *gtpv1u_data_pP,
// uint8_t ue_idP,
// uint8_t rab_idP,
// char *sgw_ip_addr_pP,
// uint16_t portP)
//{
// uint32_t teid;
// uint8_t max_attempt = 100;
// NwGtpv1uRcT rc = NW_GTPV1U_FAILURE;
// NwGtpv1uUlpApiT ulp_req;
// struct gtpv1u_ue_data_s *new_ue_p = NULL;
// struct gtpv1u_bearer_s *bearer_p = NULL;
// hashtable_rc_t hash_rc = HASH_TABLE_KEY_NOT_EXISTS;;
//
// if (rab_idP > GTPV1U_MAX_BEARERS_PER_UE) {
// LOG_E(GTPU, "Could not use rab_id %d > max %d\n",
// rab_idP, GTPV1U_MAX_BEARERS_PER_UE);
// return -1;
// }
//
//
// if ((hash_rc = hashtable_get(gtpv1u_data_pP->ue_mapping, (uint64_t)ue_idP, (void**)&new_ue_p)) == HASH_TABLE_OK) {
// /* A context for this UE already exist in the tree, use it */
// /* We check that the tunnel is not already configured */
// if (new_ue_p->bearers[rab_idP].state != BEARER_DOWN) {
// LOG_E(GTPU, "Cannot create new end-point over already existing tunnel\n");
// return -1;
// }
// } else {
// /* Context doesn't exist, create it */
// if (rab_idP != 0) {
// /* UE should first establish Default bearer before trying to setup
// * additional bearers.
// */
// LOG_E(GTPU, "UE context is not known and rab_id != 0\n");
// return -1;
// }
// new_ue_p = calloc(1, sizeof(struct gtpv1u_ue_data_s));
// new_ue_p->ue_id = ue_idP;
//
// hash_rc = hashtable_insert(gtpv1u_data_pP->ue_mapping, (uint64_t)ue_idP, new_ue_p);
//
// if ((hash_rc != HASH_TABLE_OK) && (hash_rc != HASH_TABLE_INSERT_OVERWRITTEN_DATA)) {
// LOG_E(GTPU, "Failed to insert new UE context\n");
// free(new_ue_p);
// return -1;
// }
// }
//
// bearer_p = &new_ue_p->bearers[rab_idP];
//
// /* Configure the bearer */
// bearer_p->state = BEARER_IN_CONFIG;
// bearer_p->sgw_ip_addr = inet_addr(sgw_ip_addr_pP);
// bearer_p->port = portP;
//
// /* Create the new stack api request */
// memset(&ulp_req, 0, sizeof(NwGtpv1uUlpApiT));
// ulp_req.apiType = NW_GTPV1U_ULP_API_CREATE_TUNNEL_ENDPOINT;
//
// /* Try to create new tunnel-endpoint.
// * If teid generated is already present in the stack, just peek another random
// * teid. This could be ok for small number of tunnel but more errors could be
// * thrown if we reached high number of tunnels.
// * TODO: find a solution for teid
// */
// do {
// /* Request for a new random TEID */
// teid = gtpv1u_new_teid();
// ulp_req.apiInfo.createTunnelEndPointInfo.teid = teid;
//
// rc = nwGtpv1uProcessUlpReq(gtpv1u_data_pP->gtpv1u_stack, &ulp_req);
//
// if (rc == NW_GTPV1U_OK) {
//// LOG_D(GTPU, "Successfully created new tunnel endpoint for teid 0x%x\n",
//// teid);
// bearer_p->teid_eNB = teid;
//// gtpv1u_initial_req(gtpv1u_data_pP, teid, GTPV1U_UDP_PORT,
//// inet_addr("192.168.56.101"));
// LOG_I(GTPU, "Created eNB tunnel endpoint %u for ue id %u, rab id %u\n", teid, ue_idP, rab_idP);
// return 0;
// } else {
// LOG_W(GTPU, "Teid %u already in use... %s\n",
// teid, (max_attempt > 1) ? "Trying another one" : "Last chance");
// }
// } while(max_attempt-- && rc != NW_GTPV1U_OK);
//
// bearer_p->state = BEARER_DOWN;
// LOG_I(GTPU, "Failed to created eNB tunnel endpoint %u for ue id %u, rab id %u, bearer down\n", teid, ue_idP, rab_idP);
//
// return -1;
//}
//-----------------------------------------------------------------------------
static NwGtpv1uRcT gtpv1u_start_timer_wrapper(
NwGtpv1uTimerMgrHandleT tmrMgrHandle,
uint32_t timeoutSec,
uint32_t timeoutUsec,
uint32_t tmrType,
void *timeoutArg,
NwGtpv1uTimerHandleT *hTmr)
{
NwGtpv1uRcT rc = NW_GTPV1U_OK;
long timer_id;
if (tmrType == NW_GTPV1U_TMR_TYPE_ONE_SHOT) {
timer_setup(timeoutSec,
timeoutUsec,
TASK_GTPV1_U,
INSTANCE_DEFAULT,
TIMER_ONE_SHOT,
timeoutArg,
&timer_id);
} else {
timer_setup(timeoutSec,
timeoutUsec,
TASK_GTPV1_U,
INSTANCE_DEFAULT,
TIMER_PERIODIC,
timeoutArg,
&timer_id);
}
return rc;
}
//-----------------------------------------------------------------------------
static NwGtpv1uRcT
gtpv1u_stop_timer_wrapper(
NwGtpv1uTimerMgrHandleT tmrMgrHandle,
NwGtpv1uTimerHandleT hTmr)
{
NwGtpv1uRcT rc = NW_GTPV1U_OK;
return rc;
}
//-----------------------------------------------------------------------------
int
gtpv1u_initial_req(
gtpv1u_data_t *gtpv1u_data_pP,
teid_t teidP,
tcp_udp_port_t portP,
uint32_t address)
{
NwGtpv1uUlpApiT ulp_req;
NwGtpv1uRcT rc = NW_GTPV1U_FAILURE;
memset(&ulp_req, 0, sizeof(NwGtpv1uUlpApiT));
ulp_req.apiType = NW_GTPV1U_ULP_API_INITIAL_REQ;
ulp_req.apiInfo.initialReqInfo.teid = teidP;
ulp_req.apiInfo.initialReqInfo.peerPort = portP;
ulp_req.apiInfo.initialReqInfo.peerIp = address;
rc = nwGtpv1uProcessUlpReq(gtpv1u_data_pP->gtpv1u_stack, &ulp_req);
if (rc == NW_GTPV1U_OK) {
LOG_D(GTPU, "Successfully sent initial req for teid %u\n", teidP);
} else {
LOG_W(GTPU, "Could not send initial req for teid %u\n", teidP);
}
return (rc == NW_GTPV1U_OK) ? 0 : -1;
}
//-----------------------------------------------------------------------------
int
gtpv1u_new_data_req(
uint8_t enb_module_idP,
rnti_t ue_rntiP,
uint8_t rab_idP,
uint8_t *buffer_pP,
uint32_t buf_lenP,
uint32_t buf_offsetP
)
{
NwGtpv1uUlpApiT stack_req;
NwGtpv1uRcT rc = NW_GTPV1U_FAILURE;
struct gtpv1u_ue_data_s ue;
struct gtpv1u_ue_data_s *ue_inst_p = NULL;
struct gtpv1u_bearer_s *bearer_p = NULL;
hashtable_rc_t hash_rc = HASH_TABLE_KEY_NOT_EXISTS;;
gtpv1u_data_t *gtpv1u_data_p = NULL;
memset(&ue, 0, sizeof(struct gtpv1u_ue_data_s));
ue.ue_id = ue_rntiP;
AssertFatal(enb_module_idP >=0, "Bad parameter enb module id %u\n", enb_module_idP);
AssertFatal((rab_idP - GTPV1U_BEARER_OFFSET)< GTPV1U_MAX_BEARERS_ID, "Bad parameter rab id %u\n", rab_idP);
AssertFatal((rab_idP - GTPV1U_BEARER_OFFSET) >= 0 , "Bad parameter rab id %u\n", rab_idP);
gtpv1u_data_p = &gtpv1u_data_g;
/* Check that UE context is present in ue map. */
hash_rc = hashtable_get(gtpv1u_data_p->ue_mapping, (uint64_t)ue_rntiP, (void**)&ue_inst_p);
if (hash_rc == HASH_TABLE_KEY_NOT_EXISTS ) {
LOG_E(GTPU, "[UE %d] Trying to send data on non-existing UE context\n", ue_rntiP);
return -1;
}
bearer_p = &ue_inst_p->bearers[rab_idP - GTPV1U_BEARER_OFFSET];
/* Ensure the bearer in ready.
* TODO: handle the cases where the bearer is in HANDOVER state.
* In such case packets should be placed in FIFO.
*/
if (bearer_p->state != BEARER_UP) {
LOG_W(GTPU, "Trying to send data over bearer with state(%u) != BEARER_UP\n",
bearer_p->state);
#warning LG: HACK WHILE WAITING FOR NAS, normally return -1
if (bearer_p->state != BEARER_IN_CONFIG)
return -1;
}
memset(&stack_req, 0, sizeof(NwGtpv1uUlpApiT));
stack_req.apiType = NW_GTPV1U_ULP_API_SEND_TPDU;
stack_req.apiInfo.sendtoInfo.teid = bearer_p->teid_sgw;
stack_req.apiInfo.sendtoInfo.ipAddr = bearer_p->sgw_ip_addr;
LOG_D(GTPU, "TX TO TEID %u addr 0x%x\n",bearer_p->teid_sgw, bearer_p->sgw_ip_addr);
rc = nwGtpv1uGpduMsgNew(gtpv1u_data_p->gtpv1u_stack,
bearer_p->teid_sgw,
NW_FALSE,
gtpv1u_data_p->seq_num++,
buffer_pP,
buf_lenP,
buf_offsetP,
&(stack_req.apiInfo.sendtoInfo.hMsg));
if (rc != NW_GTPV1U_OK) {
LOG_E(GTPU, "nwGtpv1uGpduMsgNew failed: 0x%x\n", rc);
return -1;
}
rc = nwGtpv1uProcessUlpReq(gtpv1u_data_p->gtpv1u_stack,
&stack_req);
if (rc != NW_GTPV1U_OK) {
LOG_E(GTPU, "nwGtpv1uProcessUlpReq failed: 0x%x\n", rc);
return -1;
}
rc = nwGtpv1uMsgDelete(gtpv1u_data_p->gtpv1u_stack,
stack_req.apiInfo.sendtoInfo.hMsg);
if (rc != NW_GTPV1U_OK) {
LOG_E(GTPU, "nwGtpv1uMsgDelete failed: 0x%x\n", rc);
return -1;
}
LOG_D(GTPU, "%s() return code OK\n", __FUNCTION__);
return 0;
}
//-----------------------------------------------------------------------------
static int
gtpv1u_create_s1u_tunnel(
const instance_t instanceP,
const gtpv1u_enb_create_tunnel_req_t * const create_tunnel_req_pP)
{
/* Create a new nw-gtpv1-u stack req using API */
NwGtpv1uUlpApiT stack_req;
NwGtpv1uRcT rc = NW_GTPV1U_FAILURE;
/* Local tunnel end-point identifier */
teid_t s1u_teid = 0;
gtpv1u_teid_data_t *gtpv1u_teid_data_p = NULL;
gtpv1u_ue_data_t *gtpv1u_ue_data_p = NULL;
MessageDef *message_p = NULL;
hashtable_rc_t hash_rc = HASH_TABLE_KEY_NOT_EXISTS;
int i;
ebi_t eps_bearer_id = 0;
// int ipv4_addr = 0;
int ip_offset = 0;
in_addr_t in_addr;
int addrs_length_in_bytes= 0;
MSC_LOG_RX_MESSAGE(
MSC_GTPU_ENB,
MSC_RRC_ENB,
NULL,0,
MSC_AS_TIME_FMT" CREATE_TUNNEL_REQ RNTI %"PRIx16" inst %u ntuns %u ebid %u sgw-s1u teid %u",
0,0,create_tunnel_req_pP->rnti, instanceP,
create_tunnel_req_pP->num_tunnels, create_tunnel_req_pP->eps_bearer_id[0],
create_tunnel_req_pP->sgw_S1u_teid[0]);
message_p = itti_alloc_new_message(TASK_GTPV1_U, GTPV1U_ENB_CREATE_TUNNEL_RESP);
GTPV1U_ENB_CREATE_TUNNEL_RESP(message_p).rnti = create_tunnel_req_pP->rnti;
GTPV1U_ENB_CREATE_TUNNEL_RESP(message_p).status = 0;
GTPV1U_ENB_CREATE_TUNNEL_RESP(message_p).num_tunnels = 0;
for (i = 0; i < create_tunnel_req_pP->num_tunnels; i++) {
ip_offset = 0;
eps_bearer_id = create_tunnel_req_pP->eps_bearer_id[i];
LOG_D(GTPU, "Rx GTPV1U_ENB_CREATE_TUNNEL_REQ ue rnti %x eps bearer id %u\n",
create_tunnel_req_pP->rnti, eps_bearer_id);
memset(&stack_req, 0, sizeof(NwGtpv1uUlpApiT));
stack_req.apiType = NW_GTPV1U_ULP_API_CREATE_TUNNEL_ENDPOINT;
do {
s1u_teid = gtpv1u_new_teid();
LOG_D(GTPU, "gtpv1u_create_s1u_tunnel() 0x%x %u(dec)\n", s1u_teid, s1u_teid);
stack_req.apiInfo.createTunnelEndPointInfo.teid = s1u_teid;
stack_req.apiInfo.createTunnelEndPointInfo.hUlpSession = 0;
stack_req.apiInfo.createTunnelEndPointInfo.hStackSession = 0;
rc = nwGtpv1uProcessUlpReq(gtpv1u_data_g.gtpv1u_stack, &stack_req);
LOG_D(GTPU, ".\n");
} while (rc != NW_GTPV1U_OK);
//-----------------------
// PDCP->GTPV1U mapping
//-----------------------
hash_rc = hashtable_get(gtpv1u_data_g.ue_mapping, create_tunnel_req_pP->rnti, (void **)&gtpv1u_ue_data_p);
if ((hash_rc == HASH_TABLE_KEY_NOT_EXISTS) || (hash_rc == HASH_TABLE_OK)) {
if (hash_rc == HASH_TABLE_KEY_NOT_EXISTS) {
gtpv1u_ue_data_p = calloc (1, sizeof(gtpv1u_ue_data_t));
hash_rc = hashtable_insert(gtpv1u_data_g.ue_mapping, create_tunnel_req_pP->rnti, gtpv1u_ue_data_p);
AssertFatal(hash_rc == HASH_TABLE_OK, "Error inserting ue_mapping in GTPV1U hashtable");
}
gtpv1u_ue_data_p->ue_id = create_tunnel_req_pP->rnti;
gtpv1u_ue_data_p->instance_id = 0; // TO DO
memcpy(&GTPV1U_ENB_CREATE_TUNNEL_RESP(message_p).enb_addr.buffer,
&gtpv1u_data_g.enb_ip_address_for_S1u_S12_S4_up,
sizeof (in_addr_t));
GTPV1U_ENB_CREATE_TUNNEL_RESP(message_p).enb_addr.length = sizeof (in_addr_t);
addrs_length_in_bytes = create_tunnel_req_pP->sgw_addr[i].length / 8;
AssertFatal((addrs_length_in_bytes == 4) ||
(addrs_length_in_bytes == 16) ||
(addrs_length_in_bytes == 20),
"Bad transport layer address length %d (bits) %d (bytes)",
create_tunnel_req_pP->sgw_addr[i].length, addrs_length_in_bytes);
if ((addrs_length_in_bytes == 4) ||
(addrs_length_in_bytes == 20)) {
in_addr = *((in_addr_t*)create_tunnel_req_pP->sgw_addr[i].buffer);
ip_offset = 4;
gtpv1u_ue_data_p->bearers[eps_bearer_id - GTPV1U_BEARER_OFFSET].sgw_ip_addr = in_addr;
}
if ((addrs_length_in_bytes == 16) ||
(addrs_length_in_bytes == 20)) {
memcpy(gtpv1u_ue_data_p->bearers[eps_bearer_id - GTPV1U_BEARER_OFFSET].sgw_ip6_addr.s6_addr,
&create_tunnel_req_pP->sgw_addr[i].buffer[ip_offset],
16);
}
gtpv1u_ue_data_p->bearers[eps_bearer_id - GTPV1U_BEARER_OFFSET].state = BEARER_IN_CONFIG;
gtpv1u_ue_data_p->bearers[eps_bearer_id - GTPV1U_BEARER_OFFSET].teid_eNB = s1u_teid;
gtpv1u_ue_data_p->bearers[eps_bearer_id - GTPV1U_BEARER_OFFSET].teid_sgw = create_tunnel_req_pP->sgw_S1u_teid[i];
GTPV1U_ENB_CREATE_TUNNEL_RESP(message_p).enb_S1u_teid[i] = s1u_teid;
} else {
GTPV1U_ENB_CREATE_TUNNEL_RESP(message_p).enb_S1u_teid[i] = 0;
GTPV1U_ENB_CREATE_TUNNEL_RESP(message_p).status = 0xFF;
}
GTPV1U_ENB_CREATE_TUNNEL_RESP(message_p).eps_bearer_id[i] = eps_bearer_id;
GTPV1U_ENB_CREATE_TUNNEL_RESP(message_p).num_tunnels += 1;
//-----------------------
// GTPV1U->PDCP mapping
//-----------------------
hash_rc = hashtable_get(gtpv1u_data_g.teid_mapping, s1u_teid, (void**)&gtpv1u_teid_data_p);
if (hash_rc == HASH_TABLE_KEY_NOT_EXISTS) {
gtpv1u_teid_data_p = calloc (1, sizeof(gtpv1u_teid_data_t));
gtpv1u_teid_data_p->enb_id = 0; // TO DO
gtpv1u_teid_data_p->ue_id = create_tunnel_req_pP->rnti;
gtpv1u_teid_data_p->eps_bearer_id = eps_bearer_id;
hash_rc = hashtable_insert(gtpv1u_data_g.teid_mapping, s1u_teid, gtpv1u_teid_data_p);
AssertFatal(hash_rc == HASH_TABLE_OK, "Error inserting teid mapping in GTPV1U hashtable");
} else {
GTPV1U_ENB_CREATE_TUNNEL_RESP(message_p).enb_S1u_teid[i] = 0;
GTPV1U_ENB_CREATE_TUNNEL_RESP(message_p).status = 0xFF;
}
}
MSC_LOG_TX_MESSAGE(
MSC_GTPU_ENB,
MSC_RRC_ENB,
NULL,0,
"0 GTPV1U_ENB_CREATE_TUNNEL_RESP rnti %x teid %x",
GTPV1U_ENB_CREATE_TUNNEL_RESP(message_p).rnti,
s1u_teid);
LOG_D(GTPU, "Tx GTPV1U_ENB_CREATE_TUNNEL_RESP ue rnti %x status %d\n",
create_tunnel_req_pP->rnti,
GTPV1U_ENB_CREATE_TUNNEL_RESP(message_p).status);
return itti_send_msg_to_task(TASK_RRC_ENB, instanceP, message_p);
}
//-----------------------------------------------------------------------------
static int gtpv1u_delete_s1u_tunnel(
const instance_t instanceP,
const gtpv1u_enb_delete_tunnel_req_t * const req_pP)
{
NwGtpv1uUlpApiT stack_req;
NwGtpv1uRcT rc = NW_GTPV1U_FAILURE;
MessageDef *message_p = NULL;
gtpv1u_ue_data_t *gtpv1u_ue_data_p = NULL;
hashtable_rc_t hash_rc = HASH_TABLE_KEY_NOT_EXISTS;
teid_t teid_eNB = 0;
int erab_index = 0;
message_p = itti_alloc_new_message(TASK_GTPV1_U, GTPV1U_ENB_DELETE_TUNNEL_RESP);
GTPV1U_ENB_DELETE_TUNNEL_RESP(message_p).rnti = req_pP->rnti;
GTPV1U_ENB_DELETE_TUNNEL_RESP(message_p).status = 0;
hash_rc = hashtable_get(gtpv1u_data_g.ue_mapping, req_pP->rnti, (void**)&gtpv1u_ue_data_p);
if (hash_rc == HASH_TABLE_OK) {
for (erab_index = 0; erab_index < req_pP->num_erab; erab_index++) {
teid_eNB = gtpv1u_ue_data_p->bearers[req_pP->eps_bearer_id[erab_index] - GTPV1U_BEARER_OFFSET].teid_eNB;
LOG_D(GTPU, "Rx GTPV1U_ENB_DELETE_TUNNEL user rnti %x eNB S1U teid %u eps bearer id %u\n",
req_pP->rnti, teid_eNB, req_pP->eps_bearer_id[erab_index]);
{
memset(&stack_req, 0, sizeof(NwGtpv1uUlpApiT));
stack_req.apiType = NW_GTPV1U_ULP_API_DESTROY_TUNNEL_ENDPOINT;
LOG_D(GTPU, "gtpv1u_delete_s1u_tunnel erab %u %u\n",
req_pP->eps_bearer_id[erab_index],
teid_eNB);
stack_req.apiInfo.createTunnelEndPointInfo.teid = teid_eNB;
stack_req.apiInfo.createTunnelEndPointInfo.hUlpSession = 0;
stack_req.apiInfo.createTunnelEndPointInfo.hStackSession = 0;
rc = nwGtpv1uProcessUlpReq(gtpv1u_data_g.gtpv1u_stack, &stack_req);
LOG_D(GTPU, ".\n");
}
if (rc != NW_GTPV1U_OK) {
GTPV1U_ENB_DELETE_TUNNEL_RESP(message_p).status |= 0xFF;
LOG_E(GTPU, "NW_GTPV1U_ULP_API_DESTROY_TUNNEL_ENDPOINT failed");
}
//-----------------------
// PDCP->GTPV1U mapping
//-----------------------
gtpv1u_ue_data_p->bearers[req_pP->eps_bearer_id[erab_index] - GTPV1U_BEARER_OFFSET].state = BEARER_DOWN;
gtpv1u_ue_data_p->bearers[req_pP->eps_bearer_id[erab_index] - GTPV1U_BEARER_OFFSET].teid_eNB = 0;
gtpv1u_ue_data_p->bearers[req_pP->eps_bearer_id[erab_index] - GTPV1U_BEARER_OFFSET].teid_sgw = 0;
gtpv1u_ue_data_p->bearers[req_pP->eps_bearer_id[erab_index] - GTPV1U_BEARER_OFFSET].sgw_ip_addr = 0;
gtpv1u_ue_data_p->num_bearers -= 1;
if (gtpv1u_ue_data_p->num_bearers == 0) {
hash_rc = hashtable_remove(gtpv1u_data_g.ue_mapping, req_pP->rnti);
LOG_D(GTPU, "Removed user rnti %x,no more bearers configured\n", req_pP->rnti);
}
//-----------------------
// GTPV1U->PDCP mapping
//-----------------------
hash_rc = hashtable_remove(gtpv1u_data_g.teid_mapping, teid_eNB);
if (hash_rc != HASH_TABLE_OK) {
LOG_D(GTPU, "Removed user rnti %x , enb S1U teid %u not found\n", req_pP->rnti, teid_eNB);
}
}
}// else silently do nothing
LOG_D(GTPU, "Tx GTPV1U_ENB_DELETE_TUNNEL_RESP user rnti %x eNB S1U teid %u status %u\n",
GTPV1U_ENB_DELETE_TUNNEL_RESP(message_p).rnti,
GTPV1U_ENB_DELETE_TUNNEL_RESP(message_p).enb_S1u_teid,
GTPV1U_ENB_DELETE_TUNNEL_RESP(message_p).status);
MSC_LOG_TX_MESSAGE(
MSC_GTPU_ENB,
MSC_RRC_ENB,
NULL,0,
"0 GTPV1U_ENB_DELETE_TUNNEL_RESP rnti %x teid %x",
GTPV1U_ENB_DELETE_TUNNEL_RESP(message_p).rnti,
teid_eNB);
return itti_send_msg_to_task(TASK_RRC_ENB, instanceP, message_p);
}
//-----------------------------------------------------------------------------
static int gtpv1u_eNB_init(void)
{
int ret;
NwGtpv1uRcT rc = NW_GTPV1U_FAILURE;
NwGtpv1uUlpEntityT ulp;
NwGtpv1uUdpEntityT udp;
NwGtpv1uLogMgrEntityT log;
NwGtpv1uTimerMgrEntityT tmr;
Enb_properties_t *enb_properties_p = NULL;
enb_properties_p = enb_config_get()->properties[0];
memset(&gtpv1u_data_g, 0, sizeof(gtpv1u_data_g));
LOG_I(GTPU, "Initializing GTPU stack %p\n",&gtpv1u_data_g);
//gtpv1u_data_g.gtpv1u_stack;
/* Initialize UE hashtable */
gtpv1u_data_g.ue_mapping = hashtable_create (32, NULL, NULL);
AssertFatal(gtpv1u_data_g.ue_mapping != NULL, " ERROR Initializing TASK_GTPV1_U task interface: in hashtable_create returned %p\n", gtpv1u_data_g.ue_mapping);
gtpv1u_data_g.teid_mapping = hashtable_create (256, NULL, NULL);
AssertFatal(gtpv1u_data_g.teid_mapping != NULL, " ERROR Initializing TASK_GTPV1_U task interface: in hashtable_create\n");
gtpv1u_data_g.enb_ip_address_for_S1u_S12_S4_up = enb_properties_p->enb_ipv4_address_for_S1U;
gtpv1u_data_g.ip_addr = NULL;
gtpv1u_data_g.enb_port_for_S1u_S12_S4_up = enb_properties_p->enb_port_for_S1U;
//gtpv1u_data_g.udp_data;
gtpv1u_data_g.seq_num = 0;
gtpv1u_data_g.restart_counter = 0;
/* Initializing GTPv1-U stack */
if ((rc = nwGtpv1uInitialize(&gtpv1u_data_g.gtpv1u_stack, GTPU_STACK_ENB)) != NW_GTPV1U_OK) {
LOG_E(GTPU, "Failed to setup nwGtpv1u stack %x\n", rc);
return -1;
}
if ((rc = nwGtpv1uSetLogLevel(gtpv1u_data_g.gtpv1u_stack,
NW_LOG_LEVEL_DEBG)) != NW_GTPV1U_OK) {
LOG_E(GTPU, "Failed to setup loglevel for stack %x\n", rc);
return -1;
}
/* Set the ULP API callback. Called once message have been processed by the
* nw-gtpv1u stack.
*/
ulp.ulpReqCallback = gtpv1u_eNB_process_stack_req;
if ((rc = nwGtpv1uSetUlpEntity(gtpv1u_data_g.gtpv1u_stack, &ulp)) != NW_GTPV1U_OK) {
LOG_E(GTPU, "nwGtpv1uSetUlpEntity: %x", rc);
return -1;
}
/* nw-gtpv1u stack requires an udp callback to send data over UDP.
* We provide a wrapper to UDP task.
*/
udp.udpDataReqCallback = gtpv1u_eNB_send_udp_msg;
if ((rc = nwGtpv1uSetUdpEntity(gtpv1u_data_g.gtpv1u_stack, &udp)) != NW_GTPV1U_OK) {
LOG_E(GTPU, "nwGtpv1uSetUdpEntity: %x", rc);
return -1;
}
log.logReqCallback = gtpv1u_eNB_log_request;
if ((rc = nwGtpv1uSetLogMgrEntity(gtpv1u_data_g.gtpv1u_stack, &log)) != NW_GTPV1U_OK) {
LOG_E(GTPU, "nwGtpv1uSetLogMgrEntity: %x", rc);
return -1;
}
/* Timer interface is more complicated as both wrappers doesn't send a message
* to the timer task but call the timer API functions start/stop timer.
*/
tmr.tmrMgrHandle = 0;
tmr.tmrStartCallback = gtpv1u_start_timer_wrapper;
tmr.tmrStopCallback = gtpv1u_stop_timer_wrapper;
if ((rc = nwGtpv1uSetTimerMgrEntity(gtpv1u_data_g.gtpv1u_stack, &tmr)) != NW_GTPV1U_OK) {
LOG_E(GTPU, "nwGtpv1uSetTimerMgrEntity: %x", rc);
return -1;
}
#if defined(GTP_DUMP_SOCKET) && GTP_DUMP_SOCKET > 0
if ((ret = gtpv1u_eNB_create_dump_socket()) < 0) {
return -1;
}
#endif
ret = gtpv1u_eNB_send_init_udp(gtpv1u_data_g.enb_port_for_S1u_S12_S4_up);
if (ret < 0) {
return ret;
}
LOG_D(GTPU, "Initializing GTPV1U interface for eNB: DONE\n");
return 0;
}
//-----------------------------------------------------------------------------
void *gtpv1u_eNB_task(void *args)
{
int rc = 0;
instance_t instance;
const char *msg_name_p;
rc = gtpv1u_eNB_init();
AssertFatal(rc == 0, "gtpv1u_eNB_init Failed");
itti_mark_task_ready(TASK_GTPV1_U);
MSC_START_USE();
while(1) {
/* Trying to fetch a message from the message queue.
* If the queue is empty, this function will block till a
* message is sent to the task.
*/
MessageDef *received_message_p = NULL;
itti_receive_msg(TASK_GTPV1_U, &received_message_p);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GTPV1U_ENB_TASK, VCD_FUNCTION_IN);
DevAssert(received_message_p != NULL);
instance = ITTI_MSG_INSTANCE(received_message_p);
msg_name_p = ITTI_MSG_NAME(received_message_p);
switch (ITTI_MSG_ID(received_message_p)) {
case GTPV1U_ENB_CREATE_TUNNEL_REQ: {
gtpv1u_create_s1u_tunnel(instance, &received_message_p->ittiMsg.Gtpv1uCreateTunnelReq);
}
break;
case GTPV1U_ENB_DELETE_TUNNEL_REQ: {
gtpv1u_delete_s1u_tunnel(instance, &received_message_p->ittiMsg.Gtpv1uDeleteTunnelReq);
}
break;
// DATA COMING FROM UDP
case UDP_DATA_IND: {
udp_data_ind_t *udp_data_ind_p;
udp_data_ind_p = &received_message_p->ittiMsg.udp_data_ind;
nwGtpv1uProcessUdpReq(gtpv1u_data_g.gtpv1u_stack,
udp_data_ind_p->buffer,
udp_data_ind_p->buffer_length,
udp_data_ind_p->peer_port,
udp_data_ind_p->peer_address);
//itti_free(ITTI_MSG_ORIGIN_ID(received_message_p), udp_data_ind_p->buffer);
}
break;
// DATA TO BE SENT TO UDP
case GTPV1U_ENB_TUNNEL_DATA_REQ: {
gtpv1u_enb_tunnel_data_req_t *data_req_p = NULL;
NwGtpv1uUlpApiT stack_req;
NwGtpv1uRcT rc = NW_GTPV1U_FAILURE;
hashtable_rc_t hash_rc = HASH_TABLE_KEY_NOT_EXISTS;
gtpv1u_ue_data_t *gtpv1u_ue_data_p = NULL;
teid_t enb_s1u_teid = 0;
teid_t sgw_s1u_teid = 0;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GTPV1U_PROCESS_TUNNEL_DATA_REQ, VCD_FUNCTION_IN);
data_req_p = &GTPV1U_ENB_TUNNEL_DATA_REQ(received_message_p);
//ipv4_send_data(ipv4_data_p->sd, data_ind_p->buffer, data_ind_p->length);
#if defined(GTP_DUMP_SOCKET) && GTP_DUMP_SOCKET > 0
gtpv1u_eNB_write_dump_socket(&data_req_p->buffer[data_req_p->offset],data_req_p->length);
#endif
memset(&stack_req, 0, sizeof(NwGtpv1uUlpApiT));
hash_rc = hashtable_get(gtpv1u_data_g.ue_mapping, (uint64_t)data_req_p->rnti, (void**)&gtpv1u_ue_data_p);
if (hash_rc == HASH_TABLE_KEY_NOT_EXISTS) {
LOG_E(GTPU, "nwGtpv1uProcessUlpReq failed: while getting ue rnti %x in hashtable ue_mapping\n", data_req_p->rnti);
} else {
if ((data_req_p->rab_id >= GTPV1U_BEARER_OFFSET) && (data_req_p->rab_id <= max_val_DRB_Identity)) {
enb_s1u_teid = gtpv1u_ue_data_p->bearers[data_req_p->rab_id - GTPV1U_BEARER_OFFSET].teid_eNB;
sgw_s1u_teid = gtpv1u_ue_data_p->bearers[data_req_p->rab_id - GTPV1U_BEARER_OFFSET].teid_sgw;
stack_req.apiType = NW_GTPV1U_ULP_API_SEND_TPDU;
stack_req.apiInfo.sendtoInfo.teid = sgw_s1u_teid;
stack_req.apiInfo.sendtoInfo.ipAddr = gtpv1u_ue_data_p->bearers[data_req_p->rab_id - GTPV1U_BEARER_OFFSET].sgw_ip_addr;
rc = nwGtpv1uGpduMsgNew(
gtpv1u_data_g.gtpv1u_stack,
sgw_s1u_teid,
NW_FALSE,
gtpv1u_data_g.seq_num++,
data_req_p->buffer,
data_req_p->length,
data_req_p->offset,
&(stack_req.apiInfo.sendtoInfo.hMsg));
if (rc != NW_GTPV1U_OK) {
LOG_E(GTPU, "nwGtpv1uGpduMsgNew failed: 0x%x\n", rc);
MSC_LOG_EVENT(MSC_GTPU_ENB,"0 Failed send G-PDU ltid %u rtid %u size %u",
enb_s1u_teid,sgw_s1u_teid,data_req_p->length);
} else {
rc = nwGtpv1uProcessUlpReq(gtpv1u_data_g.gtpv1u_stack, &stack_req);
if (rc != NW_GTPV1U_OK) {
LOG_E(GTPU, "nwGtpv1uProcessUlpReq failed: 0x%x\n", rc);
MSC_LOG_EVENT(MSC_GTPU_ENB,"0 Failed send G-PDU ltid %u rtid %u size %u",
enb_s1u_teid,sgw_s1u_teid,data_req_p->length);
} else {
MSC_LOG_TX_MESSAGE(
MSC_GTPU_ENB,
MSC_GTPU_SGW,
NULL,
0,
MSC_AS_TIME_FMT" G-PDU ltid %u rtid %u size %u",
0,0,
enb_s1u_teid,
sgw_s1u_teid,
data_req_p->length);
}
rc = nwGtpv1uMsgDelete(gtpv1u_data_g.gtpv1u_stack,
stack_req.apiInfo.sendtoInfo.hMsg);
if (rc != NW_GTPV1U_OK) {
LOG_E(GTPU, "nwGtpv1uMsgDelete failed: 0x%x\n", rc);
}
}
}
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GTPV1U_PROCESS_TUNNEL_DATA_REQ, VCD_FUNCTION_OUT);
/* Buffer still needed, do not free it */
//itti_free(ITTI_MSG_ORIGIN_ID(received_message_p), data_req_p->buffer);
}
break;
case TERMINATE_MESSAGE: {
if (gtpv1u_data_g.ue_mapping != NULL) {
hashtable_destroy (gtpv1u_data_g.ue_mapping);
}
if (gtpv1u_data_g.teid_mapping != NULL) {
hashtable_destroy (gtpv1u_data_g.teid_mapping);
}
itti_exit_task();
}
break;
case TIMER_HAS_EXPIRED:
nwGtpv1uProcessTimeout(&received_message_p->ittiMsg.timer_has_expired.arg);
break;
default: {
LOG_E(GTPU, "Unkwnon message ID %d:%s\n",
ITTI_MSG_ID(received_message_p),
ITTI_MSG_NAME(received_message_p));
}
break;
}
rc = itti_free(ITTI_MSG_ORIGIN_ID(received_message_p), received_message_p);
AssertFatal(rc == EXIT_SUCCESS, "Failed to free memory (%d)!\n", rc);
received_message_p = NULL;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GTPV1U_ENB_TASK, VCD_FUNCTION_OUT);
}
return NULL;
}
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