Cedric Roux
117dc25a97
standalone NAS build OK git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4619 818b1a75-f10b-46b9-bf7c-635c3b92a50f
249 lines
9.7 KiB
C
249 lines
9.7 KiB
C
/*****************************************************************************
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Eurecom OpenAirInterface 3
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Copyright(c) 2012 Eurecom
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Source nas_network.h
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Version 0.1
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Date 2012/09/20
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Product NAS stack
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Subsystem NAS main process
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Author Frederic Maurel
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Description NAS procedure functions triggered by the network
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*****************************************************************************/
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#include "nas_network.h"
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#include "commonDef.h"
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#include "nas_log.h"
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#include "nas_timer.h"
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#include "as_message.h"
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#include "nas_proc.h"
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/****************************************************************************/
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/**************** E X T E R N A L D E F I N I T I O N S ****************/
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/****************************************************************************/
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/****************************************************************************/
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/******************* L O C A L D E F I N I T I O N S *******************/
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/****************************************************************************/
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/****************************************************************************/
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/****************** E X P O R T E D F U N C T I O N S ******************/
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/****************************************************************************/
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/****************************************************************************
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** **
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** Name: nas_network_initialize() **
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** **
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** Description: Initializes network internal data **
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** **
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** Inputs: None **
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** Others: None **
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** **
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** Outputs: None **
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** Return: None **
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** Others: None **
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** **
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***************************************************************************/
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#if defined(EPC_BUILD) && defined(NAS_MME)
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void nas_network_initialize(mme_config_t *mme_config_p)
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#else
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void nas_network_initialize(void)
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#endif
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{
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LOG_FUNC_IN;
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#ifdef NAS_MME
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/* Initialize the internal NAS processing data */
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# if defined(EPC_BUILD)
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nas_timer_init();
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nas_proc_initialize(mme_config_p);
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# else
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nas_proc_initialize();
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# endif
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#endif
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LOG_FUNC_OUT;
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}
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/****************************************************************************
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** **
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** Name: nas_network_cleanup() **
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** **
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** Description: Performs clean up procedure before the system is shutdown **
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** **
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** Inputs: None **
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** Others: None **
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** **
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** Outputs: None **
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** Return: None **
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** Others: None **
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** **
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***************************************************************************/
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void nas_network_cleanup(void)
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{
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LOG_FUNC_IN;
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nas_proc_cleanup();
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LOG_FUNC_OUT;
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}
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/****************************************************************************
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** **
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** Name: nas_network_process_data() **
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** **
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** Description: Process Access Stratum messages received from the network **
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** and call applicable NAS procedure function. **
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** **
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** Inputs: msg_id: AS message identifier **
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** data: Generic pointer to data structure that has **
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** to be processed **
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** Others: None **
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** **
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** Outputs: None **
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** Return: RETURNok if the message has been success- **
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** fully processed; RETURNerror otherwise **
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** Others: None **
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** **
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***************************************************************************/
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int nas_network_process_data(int msg_id, const void *data)
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{
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LOG_FUNC_IN;
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const as_message_t *msg = (as_message_t *)(data);
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int rc = RETURNok;
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/* Sanity check */
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if (msg_id != msg->msgID) {
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LOG_TRACE(ERROR, "NET-MAIN - Message identifier 0x%x to process "
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"is different from that of the network data (0x%x)",
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msg_id, msg->msgID);
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LOG_FUNC_RETURN (RETURNerror);
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}
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switch (msg_id) {
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#ifdef NAS_UE
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case AS_BROADCAST_INFO_IND:
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break;
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case AS_CELL_INFO_CNF: {
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/* Received cell information confirm */
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const cell_info_cnf_t *info = &msg->msg.cell_info_cnf;
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int cell_found = (info->errCode == AS_SUCCESS);
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rc = nas_proc_cell_info(cell_found, info->tac,
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info->cellID, info->rat,
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info->rsrp, info->rsrq);
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break;
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}
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case AS_CELL_INFO_IND:
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break;
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case AS_PAGING_IND:
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break;
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case AS_NAS_ESTABLISH_CNF: {
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/* Received NAS signalling connection establishment confirm */
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const nas_establish_cnf_t *confirm = &msg->msg.nas_establish_cnf;
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if ( (confirm->errCode == AS_SUCCESS) ||
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(confirm->errCode == AS_TERMINATED_NAS) ) {
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rc = nas_proc_establish_cnf(confirm->nasMsg.data,
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confirm->nasMsg.length);
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} else {
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LOG_TRACE(WARNING, "NET-MAIN - "
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"Initial NAS message not delivered");
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rc = nas_proc_establish_rej();
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}
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break;
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}
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case AS_NAS_RELEASE_IND:
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/* Received NAS signalling connection releaase indication */
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rc = nas_proc_release_ind(msg->msg.nas_release_ind.cause);
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break;
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case AS_UL_INFO_TRANSFER_CNF:
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/* Received uplink data transfer confirm */
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if (msg->msg.ul_info_transfer_cnf.errCode != AS_SUCCESS) {
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LOG_TRACE(WARNING, "NET-MAIN - "
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"Uplink NAS message not delivered");
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rc = nas_proc_ul_transfer_rej();
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} else {
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rc = nas_proc_ul_transfer_cnf();
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}
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break;
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case AS_DL_INFO_TRANSFER_IND: {
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const dl_info_transfer_ind_t *info = &msg->msg.dl_info_transfer_ind;
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/* Received downlink data transfer indication */
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rc = nas_proc_dl_transfer_ind(info->nasMsg.data,
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info->nasMsg.length);
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break;
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}
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case AS_RAB_ESTABLISH_IND:
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break;
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case AS_RAB_RELEASE_IND:
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break;
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#endif
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#ifdef NAS_MME
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case AS_NAS_ESTABLISH_IND: {
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/* Received NAS signalling connection establishment indication */
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const nas_establish_ind_t *indication = &msg->msg.nas_establish_ind;
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rc = nas_proc_establish_ind(indication->UEid,
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indication->tac,
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indication->initialNasMsg.data,
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indication->initialNasMsg.length);
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break;
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}
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case AS_DL_INFO_TRANSFER_CNF: {
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const dl_info_transfer_cnf_t *info = &msg->msg.dl_info_transfer_cnf;
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/* Received downlink data transfer confirm */
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if (info->errCode != AS_SUCCESS) {
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LOG_TRACE(WARNING, "NET-MAIN - "
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"Downlink NAS message not delivered");
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rc = nas_proc_dl_transfer_rej(info->UEid);
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} else {
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rc = nas_proc_dl_transfer_cnf(info->UEid);
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}
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break;
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}
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case AS_UL_INFO_TRANSFER_IND: {
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const ul_info_transfer_ind_t *info = &msg->msg.ul_info_transfer_ind;
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/* Received uplink data transfer indication */
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rc = nas_proc_ul_transfer_ind(info->UEid,
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info->nasMsg.data,
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info->nasMsg.length);
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break;
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}
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case AS_RAB_ESTABLISH_CNF:
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break;
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#endif
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default:
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LOG_TRACE(ERROR, "NET-MAIN - Unexpected AS message type: 0x%x",
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msg_id);
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rc = RETURNerror;
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break;
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}
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LOG_FUNC_RETURN (rc);
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}
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/****************************************************************************/
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/********************* L O C A L F U N C T I O N S *********************/
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/****************************************************************************/
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