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Changed attach request handling for separate EMM and ECM context.

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master
Pedro Alvarez 7 years ago
parent 97f60ae6ff
commit 7306d00ea5
1 changed files with 13 additions and 9 deletions
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22
srsepc/src/mme/s1ap_nas_transport.cc
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@ -267,11 +267,13 @@ s1ap_nas_transport::handle_nas_imsi_attach_request(uint32_t enb_ue_s1ap_id,
//Set UE ECM context //Set UE ECM context
ue_ecm_ctx.imsi = ue_emm_ctx.imsi;
ue_ecm_ctx.mme_ue_s1ap_id = ue_emm_ctx.mme_ue_s1ap_id;
//Set eNB information //Set eNB information
ue_ecm_ctx.enb_id = enb_ue_s1ap_id; ue_ecm_ctx.enb_id = enb_ue_s1ap_id;
memcpy(&ue_ecm_ctx.enb_sri, enb_sri, sizeof(struct sctp_sndrcvinfo)); memcpy(&ue_ecm_ctx.enb_sri, enb_sri, sizeof(struct sctp_sndrcvinfo));
//Save whether ESM information transfer is necessary //Save whether secure ESM information transfer is necessary
ue_ecm_ctx.eit = pdn_con_req.esm_info_transfer_flag_present; ue_ecm_ctx.eit = pdn_con_req.esm_info_transfer_flag_present;
//Add eNB info to UE ctxt //Add eNB info to UE ctxt
@ -283,9 +285,9 @@ s1ap_nas_transport::handle_nas_imsi_attach_request(uint32_t enb_ue_s1ap_id,
} }
//Log Attach Request information //Log Attach Request information
m_s1ap_log->console("Attach request -- IMSI: %015lu\n", ue_ctx.imsi); m_s1ap_log->console("Attach request -- IMSI: %015lu\n", ue_emm_ctx.imsi);
m_s1ap_log->info("Attach request -- IMSI: %015lu\n", ue_ctx.imsi); m_s1ap_log->info("Attach request -- IMSI: %015lu\n", ue_emm_ctx.imsi);
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); 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);
m_s1ap_log->console("Attach Request -- UE Network Capabilities EEA: %d%d%d%d%d%d%d%d\n", m_s1ap_log->console("Attach Request -- UE Network Capabilities EEA: %d%d%d%d%d%d%d%d\n",
attach_req.ue_network_cap.eea[0], attach_req.ue_network_cap.eea[0],
attach_req.ue_network_cap.eea[1], attach_req.ue_network_cap.eea[1],
@ -310,16 +312,18 @@ s1ap_nas_transport::handle_nas_imsi_attach_request(uint32_t enb_ue_s1ap_id,
m_s1ap_log->console("PDN Connectivity Request -- ESM Information Transfer requested: %s\n", pdn_con_req.esm_info_transfer_flag_present ? "true" : "false"); m_s1ap_log->console("PDN Connectivity Request -- ESM Information Transfer requested: %s\n", pdn_con_req.esm_info_transfer_flag_present ? "true" : "false");
//Get Authentication Vectors from HSS //Get Authentication Vectors from HSS
if(!m_hss->gen_auth_info_answer(ue_ctx.imsi, ue_ctx.security_ctxt.k_asme, autn, rand, ue_ctx.security_ctxt.xres)) if(!m_hss->gen_auth_info_answer(ue_emm_ctx.imsi, ue_emm_ctx.security_ctxt.k_asme, autn, rand, ue_emm_ctx.security_ctxt.xres))
{ {
m_s1ap_log->console("User not found. IMSI %015lu\n",ue_ctx.imsi); m_s1ap_log->console("User not found. IMSI %015lu\n",ue_emm_ctx.imsi);
m_s1ap_log->info("User not found. IMSI %015lu\n",ue_ctx.imsi); m_s1ap_log->info("User not found. IMSI %015lu\n",ue_emm_ctx.imsi);
return false; return false;
} }
m_s1ap->add_new_ue_ctx(ue_ctx); m_s1ap->add_new_ue_emm_ctx(ue_emm_ctx);
m_s1ap->add_new_ue_ecm_ctx(ue_ecm_ctx);
//Pack NAS Authentication Request in Downlink NAS Transport msg //Pack NAS Authentication Request in Downlink NAS Transport msg
pack_authentication_request(reply_buffer, ue_ctx.enb_ue_s1ap_id, ue_ctx.mme_ue_s1ap_id, autn, rand); pack_authentication_request(reply_buffer, ue_ecm_ctx.enb_ue_s1ap_id, ue_ecm_ctx.mme_ue_s1ap_id, autn, rand);
//Send reply to eNB //Send reply to eNB
*reply_flag = true; *reply_flag = true;

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