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@ -346,38 +346,44 @@ s1ap_nas_transport::handle_nas_guti_attach_request(uint32_t enb_ue_s1ap_id,
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if(it == m_s1ap->m_tmsi_to_s1ap_id.end())
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if(it == m_s1ap->m_tmsi_to_s1ap_id.end())
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{
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{
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//Could not find IMSI from M-TMSI, send Id request
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//Could not find IMSI from M-TMSI, send Id request
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ue_ctx_t ue_ctx;
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ue_emm_ctx_t tmp_ue_emm_ctx;
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ue_ctx.imsi = 0;
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ue_ecm_ctx_t ue_ecm_ctx;
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ue_ctx.enb_ue_s1ap_id = enb_ue_s1ap_id;
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ue_ctx.mme_ue_s1ap_id = m_s1ap->get_next_mme_ue_s1ap_id();
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//Set tmp UE EMM context
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tmp_ue_emm_ctx.imsi = 0;
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//Save UE network capabilities
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//Save UE network capabilities
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memcpy(&ue_ctx.security_ctxt.ue_network_cap, &attach_req.ue_network_cap, sizeof(LIBLTE_MME_UE_NETWORK_CAPABILITY_STRUCT));
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memcpy(&tmp_ue_emm_ctx.security_ctxt.ue_network_cap, &attach_req.ue_network_cap, sizeof(LIBLTE_MME_UE_NETWORK_CAPABILITY_STRUCT));
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ue_ctx.security_ctxt.ms_network_cap_present = attach_req.ms_network_cap_present;
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tmp_ue_emm_ctx.security_ctxt.ms_network_cap_present = attach_req.ms_network_cap_present;
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if(attach_req.ms_network_cap_present)
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if(attach_req.ms_network_cap_present)
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{
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{
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memcpy(&ue_ctx.security_ctxt.ms_network_cap, &attach_req.ms_network_cap, sizeof(LIBLTE_MME_MS_NETWORK_CAPABILITY_STRUCT));
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memcpy(&tmp_ue_emm_ctx.security_ctxt.ms_network_cap, &attach_req.ms_network_cap, sizeof(LIBLTE_MME_MS_NETWORK_CAPABILITY_STRUCT));
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}
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}
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//Initialize NAS count
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tmp_ue_emm_ctx.security_ctxt.ul_nas_count = 0;
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tmp_ue_emm_ctx.security_ctxt.dl_nas_count = 0;
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tmp_ue_emm_ctx.procedure_transaction_id = pdn_con_req.proc_transaction_id;
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//Set ECM context
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ue_ecm_ctx.enb_ue_s1ap_id = enb_ue_s1ap_id;
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ue_ecm_ctx.mme_ue_s1ap_id = m_s1ap->get_next_mme_ue_s1ap_id();
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uint8_t eps_bearer_id = pdn_con_req.eps_bearer_id; //TODO: Unused
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uint8_t eps_bearer_id = pdn_con_req.eps_bearer_id; //TODO: Unused
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ue_ctx.procedure_transaction_id = pdn_con_req.proc_transaction_id;
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//Save whether ESM information transfer is necessary
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//Save whether ESM information transfer is necessary
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ue_ctx.eit = pdn_con_req.esm_info_transfer_flag_present;
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ue_ecm_ctx.eit = pdn_con_req.esm_info_transfer_flag_present;
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//m_s1ap_log->console("EPS Bearer id: %d\n", eps_bearer_id);
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//m_s1ap_log->console("EPS Bearer id: %d\n", eps_bearer_id);
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//Initialize NAS count
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//Add eNB info to UE ctxt
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ue_ctx.security_ctxt.ul_nas_count = 0;
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memcpy(&ue_ecm_ctx.enb_sri, enb_sri, sizeof(struct sctp_sndrcvinfo));
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ue_ctx.security_ctxt.dl_nas_count = 0;
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//Add eNB info to UE ctxt
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memcpy(&ue_ctx.enb_sri, enb_sri, sizeof(struct sctp_sndrcvinfo));
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//Initialize E-RABs
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//Initialize E-RABs
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for(uint i = 0 ; i< MAX_ERABS_PER_UE; i++)
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for(uint i = 0 ; i< MAX_ERABS_PER_UE; i++)
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{
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{
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ue_ctx.erabs_ctx[i].state = ERAB_DEACTIVATED;
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ue_ecm_ctx.erabs_ctx[i].state = ERAB_DEACTIVATED;
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ue_ctx.erabs_ctx[i].erab_id = i;
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ue_ecm_ctx.erabs_ctx[i].erab_id = i;
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}
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}
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m_s1ap_log->console("Attach request -- IMSI: %015lu\n", ue_ctx.imsi);
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m_s1ap_log->console("Attach request -- IMSI: %015lu\n", ue_ecm_ctx.imsi);
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m_s1ap_log->info("Attach request -- IMSI: %015lu\n", ue_ctx.imsi);
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m_s1ap_log->info("Attach request -- IMSI: %015lu\n", ue_ecm_ctx.imsi);
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m_s1ap_log->console("Attach request -- eNB-UE S1AP Id: %d, MME-UE S1AP Id: %d\n", ue_ctx.enb_ue_s1ap_id, ue_ctx.mme_ue_s1ap_id);
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m_s1ap_log->console("Attach request -- eNB-UE S1AP Id: %d, MME-UE S1AP Id: %d\n", ue_ecm_ctx.enb_ue_s1ap_id, ue_ecm_ctx.mme_ue_s1ap_id);
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m_s1ap_log->console("Attach Request -- UE Network Capabilities EEA: %d%d%d%d%d%d%d%d\n",
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m_s1ap_log->console("Attach Request -- UE Network Capabilities EEA: %d%d%d%d%d%d%d%d\n",
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attach_req.ue_network_cap.eea[0],
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attach_req.ue_network_cap.eea[0],
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attach_req.ue_network_cap.eea[1],
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attach_req.ue_network_cap.eea[1],
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@ -403,13 +409,15 @@ s1ap_nas_transport::handle_nas_guti_attach_request(uint32_t enb_ue_s1ap_id,
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m_s1ap_log->console("Could not find M-TMSI=0x%x. Sending ID request\n",m_tmsi);
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m_s1ap_log->console("Could not find M-TMSI=0x%x. Sending ID request\n",m_tmsi);
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m_s1ap_log->info("Could not find M-TMSI=0x%d. Sending Id Request\n", m_tmsi);
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m_s1ap_log->info("Could not find M-TMSI=0x%d. Sending Id Request\n", m_tmsi);
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m_s1ap->add_new_ue_ctx(ue_ctx);
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m_s1ap->add_new_ue_ecm_ctx(ue_ecm_ctx);
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pack_identity_request(reply_buffer, ue_ctx.enb_ue_s1ap_id, ue_ctx.mme_ue_s1ap_id);
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pack_identity_request(reply_buffer, ue_ecm_ctx.enb_ue_s1ap_id, ue_ecm_ctx.mme_ue_s1ap_id);
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*reply_flag = true;
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*reply_flag = true;
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return true;
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return true;
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}
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}
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else{
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else{
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m_s1ap_log->console("Attach Request -- Found M-TMSI: %d\n",m_tmsi);
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m_s1ap_log->console("Attach Request -- Found M-TMSI: %d\n",m_tmsi);
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/*
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ue_ctx_t *ue_ctx_ptr = m_s1ap->find_ue_ctx(it->second);
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ue_ctx_t *ue_ctx_ptr = m_s1ap->find_ue_ctx(it->second);
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if(ue_ctx_ptr!=NULL)
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if(ue_ctx_ptr!=NULL)
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{
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{
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@ -423,6 +431,7 @@ s1ap_nas_transport::handle_nas_guti_attach_request(uint32_t enb_ue_s1ap_id,
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m_s1ap_log->error("Found M-TMSI but could not find UE context\n");
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m_s1ap_log->error("Found M-TMSI but could not find UE context\n");
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return false;
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return false;
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}
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}
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*/
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}
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}
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return true;
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return true;
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}
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}
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