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srsRAN_4G
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Fixing conflicts from merge.

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master
Pedro Alvarez 7 years ago
parent c6e2f144d7
commit 5f4613bffd
2 changed files with 19 additions and 12 deletions
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2
srsepc/hdr/mme/s1ap_nas_transport.h
Unescape Escape View File

@ -79,6 +79,8 @@ public:
bool handle_identity_response(srslte::byte_buffer_t *nas_msg, ue_ecm_ctx_t* ue_ecm_ctx, srslte::byte_buffer_t *reply_msg, bool *reply_flag);
bool handle_tracking_area_update_request(srslte::byte_buffer_t *nas_msg, ue_ecm_ctx_t* ue_ecm_ctx, srslte::byte_buffer_t *reply_msg, bool *reply_flag);
bool handle_authentication_failure(srslte::byte_buffer_t *nas_msg, ue_ecm_ctx_t* ue_ecm_ctx, srslte::byte_buffer_t *reply_buffer, bool *reply_flag);
bool integrity_check(ue_emm_ctx_t *emm_ctx, srslte::byte_buffer_t *pdu);
bool short_integrity_check(ue_emm_ctx_t *emm_ctx, srslte::byte_buffer_t *pdu);

29
srsepc/src/mme/s1ap_nas_transport.cc
Unescape Escape View File

@ -259,8 +259,7 @@ s1ap_nas_transport::handle_uplink_nas_transport(LIBLTE_S1AP_MESSAGE_UPLINKNASTRA
break;
case LIBLTE_MME_MSG_TYPE_AUTHENTICATION_FAILURE:
m_s1ap_log->info("Uplink NAS: Authentication Failure\n");
handle_authentication_failure(nas_msg, ue_ctx, reply_buffer, reply_flag);
ue_ctx->security_ctxt.ul_nas_count++;
handle_authentication_failure(nas_msg, ue_ecm_ctx, reply_buffer, reply_flag);
break;
default:
m_s1ap_log->warning("Unhandled NAS integrity protected message 0x%x\n", msg_type );
@ -929,10 +928,10 @@ s1ap_nas_transport::handle_tracking_area_update_request(srslte::byte_buffer_t *n
dw_nas->HandoverRestrictionList_present=false;
dw_nas->SubscriberProfileIDforRFP_present=false;
//m_s1ap_log->console("Tracking area accept to MME-UE S1AP Id %d\n", ue_ctx->mme_ue_s1ap_id);
/*
LIBLTE_MME_TRACKING_AREA_UPDATE_ACCEPT_MSG_STRUCT tau_acc;
/*
bool t3412_present;
bool guti_present;
bool tai_list_present;
@ -1104,7 +1103,7 @@ s1ap_nas_transport::integrity_check(ue_emm_ctx_t *emm_ctx, srslte::byte_buffer_t
bool
s1ap_nas_transport::handle_authentication_failure(srslte::byte_buffer_t *nas_msg, ue_ctx_t* ue_ctx, srslte::byte_buffer_t *reply_msg, bool *reply_flag)
s1ap_nas_transport::handle_authentication_failure(srslte::byte_buffer_t *nas_msg, ue_ecm_ctx_t* ue_ecm_ctx, srslte::byte_buffer_t *reply_msg, bool *reply_flag)
{
uint8_t autn[16];
uint8_t rand[16];
@ -1117,6 +1116,12 @@ s1ap_nas_transport::handle_authentication_failure(srslte::byte_buffer_t *nas_msg
return false;
}
ue_emm_ctx_t *emm_ctx = m_s1ap->find_ue_emm_ctx_from_imsi(ue_ecm_ctx->imsi);
if(emm_ctx == NULL)
{
m_s1ap_log->error("Could not find UE EMM context\n");
return false;
}
switch(auth_fail.emm_cause){
case 20:
@ -1134,22 +1139,22 @@ s1ap_nas_transport::handle_authentication_failure(srslte::byte_buffer_t *nas_msg
m_s1ap_log->error("Missing fail parameter\n");
return false;
}
if(!m_hss->resync_sqn(ue_ctx->imsi, auth_fail.auth_fail_param))
if(!m_hss->resync_sqn(ue_ecm_ctx->imsi, auth_fail.auth_fail_param))
{
m_s1ap_log->console("Resynchronization failed. IMSI %015lu\n", ue_ctx->imsi);
m_s1ap_log->info("Resynchronization failed. IMSI %015lu\n", ue_ctx->imsi);
m_s1ap_log->console("Resynchronization failed. IMSI %015lu\n", ue_ecm_ctx->imsi);
m_s1ap_log->info("Resynchronization failed. IMSI %015lu\n", ue_ecm_ctx->imsi);
return false;
}
//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_ecm_ctx->imsi, emm_ctx->security_ctxt.k_asme, autn, rand, emm_ctx->security_ctxt.xres))
{
m_s1ap_log->console("User not found. IMSI %015lu\n", ue_ctx->imsi);
m_s1ap_log->info("User not found. IMSI %015lu\n", ue_ctx->imsi);
m_s1ap_log->console("User not found. IMSI %015lu\n", ue_ecm_ctx->imsi);
m_s1ap_log->info("User not found. IMSI %015lu\n", ue_ecm_ctx->imsi);
return false;
}
//Pack NAS Authentication Request in Downlink NAS Transport msg
pack_authentication_request(reply_msg, ue_ctx->enb_ue_s1ap_id, ue_ctx->mme_ue_s1ap_id, autn, rand);
pack_authentication_request(reply_msg, ue_ecm_ctx->enb_ue_s1ap_id, ue_ecm_ctx->mme_ue_s1ap_id, autn, rand);
//Send reply to eNB
*reply_flag = true;

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