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converted uecontextmodificationresponse, initial setup request, and s1setup request to the new s1ap asn1 lib

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master
Francisco Paisana 5 years ago
parent b1c5bf7185
commit 40baed0b3e
1 changed files with 42 additions and 100 deletions
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142
srsenb/src/stack/upper/s1ap.cc
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@ -426,65 +426,43 @@ bool s1ap::connect_mme()
bool s1ap::setup_s1() bool s1ap::setup_s1()
{ {
uint32_t tmp32; uint32_t tmp32;
uint16_t tmp16; uint16_t tmp16;
srslte::byte_buffer_t msg;
LIBLTE_S1AP_S1AP_PDU_STRUCT pdu;
bzero(&pdu, sizeof(LIBLTE_S1AP_S1AP_PDU_STRUCT));
pdu.choice_type = LIBLTE_S1AP_S1AP_PDU_CHOICE_INITIATINGMESSAGE;
LIBLTE_S1AP_INITIATINGMESSAGE_STRUCT* init = &pdu.choice.initiatingMessage;
init->procedureCode = LIBLTE_S1AP_PROC_ID_S1SETUP;
init->choice_type = LIBLTE_S1AP_INITIATINGMESSAGE_CHOICE_S1SETUPREQUEST;
LIBLTE_S1AP_MESSAGE_S1SETUPREQUEST_STRUCT* s1setup = &init->choice.S1SetupRequest;
s1setup->ext = false;
s1setup->CSG_IdList_present = false;
s1setup->Global_ENB_ID.ext = false;
s1setup->Global_ENB_ID.iE_Extensions_present = false;
uint32_t plmn; uint32_t plmn;
s1ap_mccmnc_to_plmn(args.mcc, args.mnc, &plmn); s1ap_mccmnc_to_plmn(args.mcc, args.mnc, &plmn);
tmp32 = htonl(plmn); plmn = htonl(plmn);
s1setup->Global_ENB_ID.pLMNidentity.buffer[0] = ((uint8_t*)&tmp32)[1];
s1setup->Global_ENB_ID.pLMNidentity.buffer[1] = ((uint8_t*)&tmp32)[2]; tmp32 = htonl(args.enb_id);
s1setup->Global_ENB_ID.pLMNidentity.buffer[2] = ((uint8_t*)&tmp32)[3];
s1setup->Global_ENB_ID.ext = false;
s1setup->Global_ENB_ID.eNB_ID.ext = false;
s1setup->Global_ENB_ID.eNB_ID.choice_type = LIBLTE_S1AP_ENB_ID_CHOICE_MACROENB_ID;
tmp32 = htonl(args.enb_id);
uint8_t enb_id_bits[4 * 8]; uint8_t enb_id_bits[4 * 8];
liblte_unpack((uint8_t*)&tmp32, 4, enb_id_bits); liblte_unpack((uint8_t*)&tmp32, 4, enb_id_bits);
memcpy(s1setup->Global_ENB_ID.eNB_ID.choice.macroENB_ID.buffer,
s1ap_pdu_c pdu;
pdu.set_init_msg().load_info_obj(ASN1_S1AP_ID_S1_SETUP);
s1_setup_request_ies_container& container = pdu.init_msg().value.s1_setup_request().protocol_ies;
container.global_enb_id.value.plm_nid[0] = ((uint8_t*)&plmn)[1];
container.global_enb_id.value.plm_nid[1] = ((uint8_t*)&plmn)[2];
container.global_enb_id.value.plm_nid[2] = ((uint8_t*)&plmn)[3];
container.global_enb_id.value.enb_id.set_macro_enb_id();
memcpy(container.global_enb_id.value.enb_id.macro_enb_id().data(),
&enb_id_bits[32 - LIBLTE_S1AP_MACROENB_ID_BIT_STRING_LEN], &enb_id_bits[32 - LIBLTE_S1AP_MACROENB_ID_BIT_STRING_LEN],
LIBLTE_S1AP_MACROENB_ID_BIT_STRING_LEN); LIBLTE_S1AP_MACROENB_ID_BIT_STRING_LEN);
s1setup->eNBname_present = true; container.enbname_present = true;
s1setup->eNBname.ext = false; container.enbname.value.from_string(args.enb_name);
if (args.enb_name.length() >= 150) {
args.enb_name.resize(150 - 1); container.supported_tas.value.resize(1);
} tmp16 = htons(args.tac);
memcpy(s1setup->eNBname.buffer, args.enb_name.c_str(), args.enb_name.length()); memcpy(container.supported_tas.value[0].tac.data(), (uint8_t*)&tmp16, 2);
s1setup->eNBname.n_octets = args.enb_name.length(); container.supported_tas.value[0].broadcast_plmns.resize(1);
container.supported_tas.value[0].broadcast_plmns[0][0] = ((uint8_t*)&plmn)[1];
s1setup->SupportedTAs.len = 1; container.supported_tas.value[0].broadcast_plmns[0][1] = ((uint8_t*)&plmn)[2];
s1setup->SupportedTAs.buffer[0].ext = false; container.supported_tas.value[0].broadcast_plmns[0][2] = ((uint8_t*)&plmn)[3];
s1setup->SupportedTAs.buffer[0].iE_Extensions_present = false;
tmp16 = htons(args.tac); container.default_paging_drx.value.value = asn1::s1ap::paging_drx_opts::v128; // Todo: add to args, config file
memcpy(s1setup->SupportedTAs.buffer[0].tAC.buffer, (uint8_t*)&tmp16, 2);
s1setup->SupportedTAs.buffer[0].broadcastPLMNs.len = 1; return sctp_send_s1ap_pdu(pdu, 0, "s1SetupRequest");
tmp32 = htonl(plmn);
s1setup->SupportedTAs.buffer[0].broadcastPLMNs.buffer[0].buffer[0] = ((uint8_t*)&tmp32)[1];
s1setup->SupportedTAs.buffer[0].broadcastPLMNs.buffer[0].buffer[1] = ((uint8_t*)&tmp32)[2];
s1setup->SupportedTAs.buffer[0].broadcastPLMNs.buffer[0].buffer[2] = ((uint8_t*)&tmp32)[3];
s1setup->DefaultPagingDRX.ext = false;
s1setup->DefaultPagingDRX.e = LIBLTE_S1AP_PAGINGDRX_V128; // Todo: add to args, config file
return sctp_send_s1ap_pdu(&pdu, 0, "s1SetupRequest");
} }
/******************************************************************************* /*******************************************************************************
@ -851,7 +829,6 @@ bool s1ap::send_initialuemessage(uint16_t rnti,
if (!mme_connected) { if (!mme_connected) {
return false; return false;
} }
srslte::byte_buffer_t msg;
s1ap_pdu_c tx_pdu; s1ap_pdu_c tx_pdu;
tx_pdu.set_init_msg().load_info_obj(ASN1_S1AP_ID_INIT_UE_MSG); tx_pdu.set_init_msg().load_info_obj(ASN1_S1AP_ID_INIT_UE_MSG);
@ -996,7 +973,6 @@ bool s1ap::send_initial_ctxt_setup_response(uint16_t rnti, const asn1::s1ap::ini
for (uint32_t j = 0; j < 4; ++j) { for (uint32_t j = 0; j < 4; ++j) {
item.transport_layer_address.data()[j] = addr[3 - j]; item.transport_layer_address.data()[j] = addr[3 - j];
} }
// memcpy(item.transport_layer_address.data(), addr, 4);
} }
return sctp_send_s1ap_pdu(tx_pdu, rnti, "InitialContextSetupResponse"); return sctp_send_s1ap_pdu(tx_pdu, rnti, "InitialContextSetupResponse");
@ -1024,7 +1000,6 @@ bool s1ap::send_erab_setup_response(uint16_t rnti, const e_rab_setup_resp_s& res
for (uint32_t j = 0; j < 4; ++j) { for (uint32_t j = 0; j < 4; ++j) {
item.transport_layer_address.data()[j] = addr[3 - j]; item.transport_layer_address.data()[j] = addr[3 - j];
} }
// memcpy(item.transport_layer_address.data(), addr, 4);
} }
} }
@ -1040,33 +1015,16 @@ bool s1ap::send_initial_ctxt_setup_failure(uint16_t rnti)
if (!mme_connected) { if (!mme_connected) {
return false; return false;
} }
srslte::unique_byte_buffer_t buf = srslte::allocate_unique_buffer(*pool);
if (!buf) {
s1ap_log->error("Fatal Error: Couldn't allocate buffer in s1ap::send_initial_ctxt_setup_failure().\n");
return false;
}
LIBLTE_S1AP_S1AP_PDU_STRUCT tx_pdu; s1ap_pdu_c tx_pdu;
tx_pdu.ext = false; tx_pdu.set_unsuccessful_outcome().load_info_obj(ASN1_S1AP_ID_INIT_CONTEXT_SETUP);
tx_pdu.choice_type = LIBLTE_S1AP_S1AP_PDU_CHOICE_UNSUCCESSFULOUTCOME; auto& container = tx_pdu.unsuccessful_outcome().value.init_context_setup_request().protocol_ies;
LIBLTE_S1AP_UNSUCCESSFULOUTCOME_STRUCT* unsucc = &tx_pdu.choice.unsuccessfulOutcome;
unsucc->procedureCode = LIBLTE_S1AP_PROC_ID_INITIALCONTEXTSETUP;
unsucc->choice_type = LIBLTE_S1AP_UNSUCCESSFULOUTCOME_CHOICE_INITIALCONTEXTSETUPFAILURE;
LIBLTE_S1AP_MESSAGE_INITIALCONTEXTSETUPFAILURE_STRUCT* fail = &unsucc->choice.InitialContextSetupFailure;
fail->ext = false;
fail->CriticalityDiagnostics_present = false;
fail->MME_UE_S1AP_ID.MME_UE_S1AP_ID = get_user_ctxt(rnti)->MME_UE_S1AP_ID;
fail->eNB_UE_S1AP_ID.ENB_UE_S1AP_ID = get_user_ctxt(rnti)->eNB_UE_S1AP_ID;
fail->Cause.ext = false; container.enb_ue_s1ap_id.value = get_user_ctxt(rnti)->MME_UE_S1AP_ID;
fail->Cause.choice_type = LIBLTE_S1AP_CAUSE_CHOICE_RADIONETWORK; container.mme_ue_s1ap_id.value = get_user_ctxt(rnti)->eNB_UE_S1AP_ID;
fail->Cause.choice.radioNetwork.ext = false; container.cause.value.set_radio_network().value = cause_radio_network_opts::unspecified;
fail->Cause.choice.radioNetwork.e = LIBLTE_S1AP_CAUSERADIONETWORK_UNSPECIFIED;
return sctp_send_s1ap_pdu(&tx_pdu, rnti, "InitialContextSetupFailure"); return sctp_send_s1ap_pdu(tx_pdu, rnti, "InitialContextSetupFailure");
} }
bool s1ap::send_uectxmodifyresp(uint16_t rnti) bool s1ap::send_uectxmodifyresp(uint16_t rnti)
@ -1074,31 +1032,15 @@ bool s1ap::send_uectxmodifyresp(uint16_t rnti)
if (!mme_connected) { if (!mme_connected) {
return false; return false;
} }
srslte::unique_byte_buffer_t buf = srslte::allocate_unique_buffer(*pool);
if (!buf) {
s1ap_log->error("Fatal Error: Couldn't allocate buffer in s1ap::send_uectxmodifyresp().\n");
return false;
}
LIBLTE_S1AP_S1AP_PDU_STRUCT tx_pdu; s1ap_pdu_c tx_pdu;
tx_pdu.ext = false; tx_pdu.set_successful_outcome().load_info_obj(ASN1_S1AP_ID_UE_CONTEXT_MOD);
tx_pdu.choice_type = LIBLTE_S1AP_S1AP_PDU_CHOICE_SUCCESSFULOUTCOME; auto& container = tx_pdu.successful_outcome().value.ue_context_mod_request().protocol_ies;
LIBLTE_S1AP_SUCCESSFULOUTCOME_STRUCT* succ = &tx_pdu.choice.successfulOutcome;
succ->procedureCode = LIBLTE_S1AP_PROC_ID_UECONTEXTMODIFICATION;
succ->choice_type = LIBLTE_S1AP_SUCCESSFULOUTCOME_CHOICE_UECONTEXTMODIFICATIONRESPONSE;
LIBLTE_S1AP_MESSAGE_UECONTEXTMODIFICATIONRESPONSE_STRUCT* resp = &succ->choice.UEContextModificationResponse;
resp->ext = false;
resp->CriticalityDiagnostics_present = false;
resp->MME_UE_S1AP_ID.MME_UE_S1AP_ID = get_user_ctxt(rnti)->MME_UE_S1AP_ID;
resp->eNB_UE_S1AP_ID.ENB_UE_S1AP_ID = get_user_ctxt(rnti)->eNB_UE_S1AP_ID;
liblte_s1ap_pack_s1ap_pdu(&tx_pdu, (LIBLTE_BYTE_MSG_STRUCT*)buf.get()); container.enb_ue_s1ap_id.value = get_user_ctxt(rnti)->MME_UE_S1AP_ID;
s1ap_log->info_hex(buf->msg, buf->N_bytes, "Sending ContextModificationFailure for RNTI:0x%x", rnti); container.mme_ue_s1ap_id.value = get_user_ctxt(rnti)->eNB_UE_S1AP_ID;
return sctp_send_s1ap_pdu(&tx_pdu, rnti, "ContextModificationFailure"); return sctp_send_s1ap_pdu(tx_pdu, rnti, "UEContextModificationResponse");
} }
bool s1ap::send_uectxmodifyfailure(uint16_t rnti, const cause_c& cause) bool s1ap::send_uectxmodifyfailure(uint16_t rnti, const cause_c& cause)

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