winckel
b45af4a3c9
Renamed all ITTI functions, to make them start with module name ("itti_").
Added generic signals handling support in ITTI.
Changed ITTI log port for oaisim to 10006.
Introduce an option to use ITTI in oaisim and reoragized code.
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4267 818b1a75-f10b-46b9-bf7c-635c3b92a50f
178 lines
6.6 KiB
C
178 lines
6.6 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "assertions.h"
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#include "intertask_interface.h"
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#include "NwGtpv2c.h"
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#include "NwGtpv2cIe.h"
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#include "NwGtpv2cMsg.h"
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#include "NwGtpv2cMsgParser.h"
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#include "s11_common.h"
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#include "s11_mme_session_manager.h"
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#include "s11_ie_formatter.h"
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int s11_mme_create_session_request(NwGtpv2cStackHandleT *stack_p,
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SgwCreateSessionRequest *create_session_p)
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{
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NwGtpv2cUlpApiT ulp_req;
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NwRcT rc;
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uint8_t restart_counter = 0;
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DevAssert(stack_p != NULL);
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DevAssert(create_session_p != NULL);
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memset(&ulp_req, 0, sizeof(NwGtpv2cUlpApiT));
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ulp_req.apiType = NW_GTPV2C_ULP_API_INITIAL_REQ;
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/* Prepare a new Create Session Request msg */
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rc = nwGtpv2cMsgNew(*stack_p,
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NW_TRUE,
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NW_GTP_CREATE_SESSION_REQ,
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create_session_p->teid,
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0,
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&(ulp_req.hMsg));
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ulp_req.apiInfo.initialReqInfo.peerIp = create_session_p->peer_ip;
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ulp_req.apiInfo.initialReqInfo.teidLocal = create_session_p->sender_fteid_for_cp.teid;
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/* Add recovery if contacting the peer for the first time */
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rc = nwGtpv2cMsgAddIe((ulp_req.hMsg), NW_GTPV2C_IE_RECOVERY, 1, 0,
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(NwU8T*)&restart_counter);
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DevAssert(NW_OK == rc);
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/* Putting the information Elements */
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s11_imsi_ie_set(&(ulp_req.hMsg), &create_session_p->imsi);
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s11_rat_type_ie_set(&(ulp_req.hMsg), &create_session_p->rat_type);
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s11_pdn_type_ie_set(&(ulp_req.hMsg), &create_session_p->pdn_type);
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/* Sender F-TEID for Control Plane (MME S11) */
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rc = nwGtpv2cMsgAddIeFteid((ulp_req.hMsg), NW_GTPV2C_IE_INSTANCE_ZERO,
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S11_MME_GTP_C,
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create_session_p->sender_fteid_for_cp.teid,
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create_session_p->sender_fteid_for_cp.ipv4 ?
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create_session_p->sender_fteid_for_cp.ipv4_address : 0,
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create_session_p->sender_fteid_for_cp.ipv6 ?
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create_session_p->sender_fteid_for_cp.ipv6_address : NULL);
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/* The P-GW TEID should be present on the S11 interface.
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* In case of an initial attach it should be set to 0...
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*/
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rc = nwGtpv2cMsgAddIeFteid((ulp_req.hMsg), NW_GTPV2C_IE_INSTANCE_ONE,
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S5_S8_PGW_GTP_C,
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create_session_p->pgw_address_for_cp.teid,
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create_session_p->pgw_address_for_cp.ipv4 ?
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create_session_p->pgw_address_for_cp.ipv4_address : 0,
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create_session_p->pgw_address_for_cp.ipv6 ?
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create_session_p->pgw_address_for_cp.ipv6_address : NULL);
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s11_apn_ie_set(&(ulp_req.hMsg), create_session_p->apn);
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s11_serving_network_ie_set(&(ulp_req.hMsg), &create_session_p->serving_network);
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s11_bearer_context_to_create_ie_set(
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&(ulp_req.hMsg), &create_session_p->bearer_to_create);
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rc = nwGtpv2cProcessUlpReq(*stack_p, &ulp_req);
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DevAssert(NW_OK == rc);
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return 0;
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}
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int s11_mme_handle_create_session_response(NwGtpv2cStackHandleT *stack_p,
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NwGtpv2cUlpApiT *pUlpApi)
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{
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NwRcT rc = NW_OK;
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NwU8T offendingIeType, offendingIeInstance;
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NwU16T offendingIeLength;
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SgwCreateSessionResponse *create_session_resp_p;
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MessageDef *message_p;
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NwGtpv2cMsgParserT *pMsgParser;
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DevAssert(stack_p != NULL);
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message_p = itti_alloc_new_message(TASK_S11, SGW_CREATE_SESSION_RESPONSE);
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create_session_resp_p = &message_p->msg.sgwCreateSessionResponse;
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/* Create a new message parser */
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rc = nwGtpv2cMsgParserNew(*stack_p, NW_GTP_CREATE_SESSION_RSP,
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s11_ie_indication_generic,
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NULL, &pMsgParser);
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DevAssert(NW_OK == rc);
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/* Cause IE */
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rc = nwGtpv2cMsgParserAddIe(pMsgParser,
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NW_GTPV2C_IE_CAUSE,
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NW_GTPV2C_IE_INSTANCE_ZERO,
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NW_GTPV2C_IE_PRESENCE_MANDATORY,
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s11_cause_ie_get,
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&create_session_resp_p->cause);
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DevAssert(NW_OK == rc);
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/* Sender FTEID for CP IE */
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rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_FTEID,
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NW_GTPV2C_IE_INSTANCE_ZERO,
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NW_GTPV2C_IE_PRESENCE_CONDITIONAL,
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s11_fteid_ie_get,
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&create_session_resp_p->s11_sgw_teid);
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DevAssert(NW_OK == rc);
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/* Sender FTEID for PGW S5/S8 IE */
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rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_FTEID,
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NW_GTPV2C_IE_INSTANCE_ONE,
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NW_GTPV2C_IE_PRESENCE_CONDITIONAL,
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s11_fteid_ie_get,
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&create_session_resp_p->s5_s8_pgw_teid);
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DevAssert(NW_OK == rc);
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/* PAA IE */
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rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_PAA,
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NW_GTPV2C_IE_INSTANCE_ZERO,
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NW_GTPV2C_IE_PRESENCE_CONDITIONAL,
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s11_paa_ie_get,
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&create_session_resp_p->paa);
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DevAssert(NW_OK == rc);
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/* Bearer Contexts Created IE */
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rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_BEARER_CONTEXT,
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NW_GTPV2C_IE_INSTANCE_ZERO,
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NW_GTPV2C_IE_PRESENCE_CONDITIONAL,
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s11_bearer_context_created_ie_get,
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&create_session_resp_p->bearer_context_created);
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DevAssert(NW_OK == rc);
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/* Run the parser */
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rc = nwGtpv2cMsgParserRun(pMsgParser,
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(pUlpApi->hMsg),
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&offendingIeType,
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&offendingIeInstance,
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&offendingIeLength);
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if (rc != NW_OK)
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{
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/* TODO: handle this case */
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free(message_p);
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rc = nwGtpv2cMsgParserDelete(*stack_p, pMsgParser);
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DevAssert(NW_OK == rc);
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rc = nwGtpv2cMsgDelete(*stack_p, (pUlpApi->hMsg));
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DevAssert(NW_OK == rc);
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return -1;
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}
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rc = nwGtpv2cMsgParserDelete(*stack_p, pMsgParser);
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DevAssert(NW_OK == rc);
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rc = nwGtpv2cMsgDelete(*stack_p, (pUlpApi->hMsg));
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DevAssert(NW_OK == rc);
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return itti_send_msg_to_task(TASK_MME_APP, INSTANCE_DEFAULT, message_p);
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}
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