mirror of https://github.com/PentHertz/srsLTE.git
Decoding correctly the NAS Attach request message now.
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ae18da83b2
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@ -73,9 +73,10 @@ public:
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private:
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s1ap_args_t m_s1ap_args;
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uint32_t m_plmn;
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srslte::log *m_s1ap_log;
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s1ap_args_t m_s1ap_args;
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uint32_t m_plmn;
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srslte::byte_buffer_pool *m_pool;
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srslte::log *m_s1ap_log;
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hss *m_hss;
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int m_s1mme;
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@ -51,6 +51,8 @@ s1ap::init(s1ap_args_t s1ap_args, srslte::log *s1ap_log)
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m_s1mme = enb_listen();
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m_hss = hss::get_instance();
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m_pool = srslte::byte_buffer_pool::get_instance();
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return 0;
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}
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@ -245,13 +247,27 @@ s1ap::handle_initial_ue_message(LIBLTE_S1AP_MESSAGE_INITIALUEMESSAGE_STRUCT *msg
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LIBLTE_MME_PDN_CONNECTIVITY_REQUEST_MSG_STRUCT pdn_con_req;
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/*Get NAS Attach Request Message*/
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if(!liblte_mme_unpack_attach_request_msg((LIBLTE_BYTE_MSG_STRUCT *) msg->NAS_PDU.buffer, &attach_req)){
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m_s1ap_log->console("Error unpacking NAS attach request.");
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uint8_t pd, msg_type;
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srslte::byte_buffer_t *nas_msg = m_pool->allocate();
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memcpy(nas_msg->msg, &msg->NAS_PDU.buffer, msg->NAS_PDU.n_octets);
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nas_msg->N_bytes = msg->NAS_PDU.n_octets;
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liblte_mme_parse_msg_header((LIBLTE_BYTE_MSG_STRUCT *) nas_msg, &pd, &msg_type);
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if(msg_type!=LIBLTE_MME_MSG_TYPE_ATTACH_REQUEST){
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m_s1ap_log->error("Unhandled NAS message within the Initial UE message\n");
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return false;
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}
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else{
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m_s1ap_log->console("Unpacked NAS attach request.");
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LIBLTE_ERROR_ENUM err = liblte_mme_unpack_attach_request_msg((LIBLTE_BYTE_MSG_STRUCT *) nas_msg, &attach_req);
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if(err != LIBLTE_SUCCESS){
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m_s1ap_log->console("Error unpacking NAS attach request. Error: %s\n", liblte_error_text[err]);
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return false;
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}
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m_s1ap_log->console("Unpacked NAS attach request.\n");
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if(attach_req.eps_mobile_id.type_of_id!=LIBLTE_MME_EPS_MOBILE_ID_TYPE_IMSI){
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m_s1ap_log->warning("NAS Attach Request: Unhandle UE Id Type");
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}
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