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srsLTE
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eNB receiving Initial Context Setup, but segfaulting. Probably because QoS structure missing.

This commit is contained in:
Pedro Alvarez 2017-11-29 18:35:02 +00:00
parent 13595ccb2d
commit d9bb3bbf4e
1 changed files with 35 additions and 6 deletions
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41
srsepc/src/mme/s1ap.cc
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@ -366,7 +366,7 @@ s1ap::handle_initial_ue_message(LIBLTE_S1AP_MESSAGE_INITIALUEMESSAGE_STRUCT *ini
m_s1ap_log->console("EPS Bearer id: %d\n", eps_bearer_id);
//Add eNB info to UE ctxt
memcpy(&ue_ctx.enb_sri, &enb_sri, sizeof(struct sctp_sndrcvinfo));
memcpy(&ue_ctx.enb_sri, enb_sri, sizeof(struct sctp_sndrcvinfo));
//Get Authentication Vectors from HSS
if(!m_hss->gen_auth_info_answer_milenage(imsi, ue_ctx.security_ctxt.k_asme, autn, rand, ue_ctx.security_ctxt.xres))
@ -554,6 +554,7 @@ s1ap::send_initial_context_setup_request(uint32_t mme_ue_s1ap_id, struct srslte:
//Prepare reply PDU
LIBLTE_S1AP_S1AP_PDU_STRUCT pdu;
bzero(&pdu, sizeof(LIBLTE_S1AP_S1AP_PDU_STRUCT));
pdu.choice_type = LIBLTE_S1AP_S1AP_PDU_CHOICE_INITIATINGMESSAGE;
LIBLTE_S1AP_INITIATINGMESSAGE_STRUCT *init = &pdu.choice.initiatingMessage;
@ -561,6 +562,7 @@ s1ap::send_initial_context_setup_request(uint32_t mme_ue_s1ap_id, struct srslte:
init->choice_type = LIBLTE_S1AP_INITIATINGMESSAGE_CHOICE_INITIALCONTEXTSETUPREQUEST;
LIBLTE_S1AP_MESSAGE_INITIALCONTEXTSETUPREQUEST_STRUCT *in_ctxt_req = &init->choice.InitialContextSetupRequest;
LIBLTE_S1AP_E_RABTOBESETUPITEMCTXTSUREQ_STRUCT *erab_ctxt = &in_ctxt_req->E_RABToBeSetupListCtxtSUReq.buffer[0]; //FIXME support more than one erab
srslte::byte_buffer_t *reply_buffer = m_pool->allocate();
@ -576,7 +578,6 @@ s1ap::send_initial_context_setup_request(uint32_t mme_ue_s1ap_id, struct srslte:
ue_ctx = ue_ctx_it->second;
//Add MME and eNB S1AP Ids
bzero(&in_ctxt_req, sizeof(in_ctxt_req));
in_ctxt_req->MME_UE_S1AP_ID.MME_UE_S1AP_ID = ue_ctx->mme_ue_s1ap_id;
in_ctxt_req->eNB_UE_S1AP_ID.ENB_UE_S1AP_ID = ue_ctx->enb_ue_s1ap_id;
@ -584,14 +585,41 @@ s1ap::send_initial_context_setup_request(uint32_t mme_ue_s1ap_id, struct srslte:
in_ctxt_req->uEaggregateMaximumBitrate.uEaggregateMaximumBitRateDL.BitRate=4294967295;//2^32-1
in_ctxt_req->uEaggregateMaximumBitrate.uEaggregateMaximumBitRateUL.BitRate=4294967295;//FIXME Get UE-AMBR from HSS
//eRAB context to setup
/*
typedef struct{
bool ext;
LIBLTE_S1AP_E_RAB_ID_STRUCT e_RAB_ID;
LIBLTE_S1AP_E_RABLEVELQOSPARAMETERS_STRUCT e_RABlevelQoSParameters;
LIBLTE_S1AP_TRANSPORTLAYERADDRESS_STRUCT transportLayerAddress;
LIBLTE_S1AP_GTP_TEID_STRUCT gTP_TEID;
LIBLTE_S1AP_NAS_PDU_STRUCT nAS_PDU;
bool nAS_PDU_present;
LIBLTE_S1AP_PROTOCOLEXTENSIONCONTAINER_STRUCT iE_Extensions;
bool iE_Extensions_present;
}LIBLTE_S1AP_E_RABTOBESETUPITEMCTXTSUREQ_STRUCT;
*/
/*
typedef struct{
bool ext;
LIBLTE_S1AP_QCI_STRUCT qCI;
LIBLTE_S1AP_ALLOCATIONANDRETENTIONPRIORITY_STRUCT allocationRetentionPriority;
LIBLTE_S1AP_GBR_QOSINFORMATION_STRUCT gbrQosInformation;
bool gbrQosInformation_present;
LIBLTE_S1AP_PROTOCOLEXTENSIONCONTAINER_STRUCT iE_Extensions;
bool iE_Extensions_present;
}LIBLTE_S1AP_E_RABLEVELQOSPARAMETERS_STRUCT;
*/
//Setup eRAB context
in_ctxt_req->E_RABToBeSetupListCtxtSUReq.len = 1;
erab_ctxt->e_RAB_ID.E_RAB_ID = cs_resp->eps_bearer_context_created.ebi;
//Setup E-RAB QoS parameters
//Set E-RAB S-GW F-TEID
if (cs_resp->eps_bearer_context_created.s1_u_sgw_f_teid_present == false){
m_s1ap_log->error("Did not receive S1-U TEID in create session response\n");
return false;
}
//Set S-GW F-TEID
}
erab_ctxt->transportLayerAddress.n_bits = 32; //IPv4
uint32_t sgw_s1u_ip = cs_resp->eps_bearer_context_created.s1_u_sgw_f_teid.ipv4;
uint8_t *tmp_ptr = erab_ctxt->transportLayerAddress.buffer;
liblte_value_2_bits(sgw_s1u_ip, &tmp_ptr, 32);//FIXME consider ipv6
@ -612,6 +640,7 @@ s1ap::send_initial_context_setup_request(uint32_t mme_ue_s1ap_id, struct srslte:
LIBLTE_ERROR_ENUM err = liblte_s1ap_pack_s1ap_pdu(&pdu, (LIBLTE_BYTE_MSG_STRUCT*)reply_buffer);
//reply_buffer->N_bytes = pdu->NAS_PDU.n_octets;
if(err != LIBLTE_SUCCESS)
{
m_s1ap_log->error("Could not pack Initial Context Setup Request Message\n");