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srsLTE
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Replying same attach type to the UE as in the attach request.

This commit is contained in:
Pedro Alvarez 2018-03-05 09:51:31 +00:00
parent c9b459bf8a
commit 01e5642882
2 changed files with 10 additions and 1 deletions
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1
srsepc/hdr/mme/s1ap_common.h
View File

@ -97,6 +97,7 @@ typedef struct{
LIBLTE_MME_MS_NETWORK_CAPABILITY_STRUCT ms_network_cap;
bool eit;
uint8_t procedure_transaction_id;
uint8_t attach_type;
} ue_ctx_t;
}//namespace
#endif

10
srsepc/src/mme/s1ap_nas_transport.cc
View File

@ -311,7 +311,10 @@ s1ap_nas_transport::handle_nas_imsi_attach_request(uint32_t enb_ue_s1ap_id,
m_s1ap_log->console("PDN Connectivity Request -- EPS Bearer Identity requested: %d\n", pdn_con_req.eps_bearer_id);
m_s1ap_log->console("PDN Connectivity Request -- Procedure Transaction Id: %d\n", pdn_con_req.proc_transaction_id);
m_s1ap_log->console("PDN Connectivity Request -- ESM Information Transfer requested: %s\n", pdn_con_req.esm_info_transfer_flag_present ? "true" : "false");
//Save attach request type
ue_ctx.attach_type = attach_req.eps_attach_type;
//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))
{
@ -360,6 +363,9 @@ s1ap_nas_transport::handle_nas_guti_attach_request(uint32_t enb_ue_s1ap_id,
uint8_t eps_bearer_id = pdn_con_req.eps_bearer_id; //TODO: Unused
ue_ctx.procedure_transaction_id = pdn_con_req.proc_transaction_id;
//Save attach request type
ue_ctx.attach_type = attach_req.eps_attach_type;
//Save whether ESM information transfer is necessary
ue_ctx.eit = pdn_con_req.esm_info_transfer_flag_present;
//m_s1ap_log->console("EPS Bearer id: %d\n", eps_bearer_id);
@ -412,6 +418,8 @@ s1ap_nas_transport::handle_nas_guti_attach_request(uint32_t enb_ue_s1ap_id,
ue_ctx_t *ue_ctx_ptr = m_s1ap->find_ue_ctx(it->second);
if(ue_ctx_ptr!=NULL)
{
//Save attach request type
ue_ctx_ptr->attach_type = attach_req.eps_attach_type;
m_s1ap_log->console("Found UE context. IMSI: %015lu\n",ue_ctx_ptr->imsi);
m_mme_gtpc->send_create_session_request(ue_ctx_ptr->imsi, ue_ctx_ptr->mme_ue_s1ap_id);
*reply_flag = false; //No reply needed