From 1f8413361c1b99ea46ee613da035803a1387f65c Mon Sep 17 00:00:00 2001
From: Robert Schmidt <robert.schmidt@openairinterface.org>
Date: Sun, 10 Apr 2022 14:25:38 +0200
Subject: [PATCH] Add E1AP lib
---
common/utils/LOG/log.h | 1 +
common/utils/T/T_messages.txt | 21 ++
common/utils/ocp_itti/intertask_interface.h | 2 +
openair2/E1AP/CMakeLists.txt | 6 +
openair2/E1AP/e1ap.c | 385 ++++++++++++++++++++
openair2/E1AP/e1ap.h | 34 ++
6 files changed, 449 insertions(+)
create mode 100644 openair2/E1AP/e1ap.c
create mode 100644 openair2/E1AP/e1ap.h
diff --git a/common/utils/LOG/log.h b/common/utils/LOG/log.h
index 509c4581a92..bd017caf60e 100644
--- a/common/utils/LOG/log.h
+++ b/common/utils/LOG/log.h
@@ -219,6 +219,7 @@ typedef enum {
SPGW,
S1AP,
F1AP,
+ E1AP,
SCTP,
HW,
OSA,
diff --git a/common/utils/T/T_messages.txt b/common/utils/T/T_messages.txt
index b3c06d6be8a..716c77823d5 100644
--- a/common/utils/T/T_messages.txt
+++ b/common/utils/T/T_messages.txt
@@ -1235,6 +1235,27 @@ ID = LEGACY_F1AP_ERROR
GROUP = ALL:LEGACY_F1AP:LEGACY_GROUP_ERROR:LEGACY
FORMAT = string,log
+ID = LEGACY_E1AP_TRACE
+ DESC = E1AP TRACE LEVEL
+ GROUP = ALL:LEGACY_E1AP:LEGACY_GROUP_TRACE:LEGACY
+ FORMAT = string,log
+ID = LEGACY_E1AP_DEBUG
+ DESC = E1AP DEBUG LEVEL
+ GROUP = ALL:LEGACY_E1AP:LEGACY_GROUP_DEBUG:LEGACY
+ FORMAT = string,log
+ID = LEGACY_E1AP_INFO
+ DESC = E1AP INFO LEVEL
+ GROUP = ALL:LEGACY_E1AP:LEGACY_GROUP_INFO:LEGACY
+ FORMAT = string,log
+ID = LEGACY_E1AP_WARNING
+ DESC = E1AP WARNING LEVEL
+ GROUP = ALL:LEGACY_E1AP:LEGACY_GROUP_WARNING:LEGACY
+ FORMAT = string,log
+ID = LEGACY_E1AP_ERROR
+ DESC = E1AP ERROR LEVEL
+ GROUP = ALL:LEGACY_E1AP:LEGACY_GROUP_ERROR:LEGACY
+ FORMAT = string,log
+
#################
#### UE LOGS ####
#################
diff --git a/common/utils/ocp_itti/intertask_interface.h b/common/utils/ocp_itti/intertask_interface.h
index 9f1fcd17410..a8518af660c 100644
--- a/common/utils/ocp_itti/intertask_interface.h
+++ b/common/utils/ocp_itti/intertask_interface.h
@@ -339,6 +339,8 @@ void *rrc_enb_process_msg(void *);
TASK_DEF(TASK_GTPV1_U, TASK_PRIORITY_MED, 1000,NULL, NULL)\
TASK_DEF(TASK_CU_F1, TASK_PRIORITY_MED, 200, NULL, NULL) \
TASK_DEF(TASK_DU_F1, TASK_PRIORITY_MED, 200, NULL, NULL) \
+ TASK_DEF(TASK_CUCP_E1, TASK_PRIORITY_MED, 200, NULL, NULL) \
+ TASK_DEF(TASK_CUUP_E1, TASK_PRIORITY_MED, 200, NULL, NULL) \
TASK_DEF(TASK_RRC_UE_SIM, TASK_PRIORITY_MED, 200, NULL, NULL) \
TASK_DEF(TASK_RRC_GNB_SIM, TASK_PRIORITY_MED, 200, NULL, NULL) \
TASK_DEF(TASK_RRC_NSA_UE, TASK_PRIORITY_MED, 200, NULL, NULL) \
diff --git a/openair2/E1AP/CMakeLists.txt b/openair2/E1AP/CMakeLists.txt
index 7537bd661d7..b600f64d6fa 100644
--- a/openair2/E1AP/CMakeLists.txt
+++ b/openair2/E1AP/CMakeLists.txt
@@ -1 +1,7 @@
add_subdirectory(MESSAGES)
+
+add_library(E1AP e1ap.c)
+target_link_libraries(E1AP
+ PUBLIC ASN1_E1AP_LIB
+ PRIVATE UTIL)
+target_include_directories(E1AP PUBLIC ${CMAKE_CURRENT_DIR})
diff --git a/openair2/E1AP/e1ap.c b/openair2/E1AP/e1ap.c
new file mode 100644
index 00000000000..b49f4d4ca1b
--- /dev/null
+++ b/openair2/E1AP/e1ap.c
@@ -0,0 +1,385 @@
+/*
+ * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The OpenAirInterface Software Alliance licenses this file to You under
+ * the OAI Public License, Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.openairinterface.org/?page_id=698
+ *
+ * Author and copyright: Laurent Thomas, open-cells.com
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *-------------------------------------------------------------------------------
+ * For more information about the OpenAirInterface (OAI) Software Alliance:
+ * contact@openairinterface.org
+ */
+
+#include "e1ap.h"
+
+int asn1_encoder_xer_print = 1;
+
+int e1ap_assoc_id(bool isCu, instance_t instance) {
+ return 0;
+}
+
+int e1ap_encode_send(bool isCu, instance_t instance, E1AP_E1AP_PDU_t *pdu, uint16_t stream, const char *func) {
+ DevAssert(pdu != NULL);
+
+ if (asn1_encoder_xer_print) {
+ LOG_E(E1AP, "----------------- ASN1 ENCODER PRINT START ----------------- \n");
+ xer_fprint(stdout, &asn_DEF_E1AP_E1AP_PDU, pdu);
+ LOG_E(E1AP, "----------------- ASN1 ENCODER PRINT END----------------- \n");
+ }
+
+ char errbuf[2048]; /* Buffer for error message */
+ size_t errlen = sizeof(errbuf); /* Size of the buffer */
+ int ret = asn_check_constraints(&asn_DEF_E1AP_E1AP_PDU, pdu, errbuf, &errlen);
+
+ if(ret) {
+ fprintf(stderr, "%s: Constraint validation failed: %s\n", func, errbuf);
+ }
+
+ void *buffer = NULL;
+ ssize_t encoded = aper_encode_to_new_buffer(&asn_DEF_E1AP_E1AP_PDU, 0, pdu, buffer);
+
+ if (encoded < 0) {
+ LOG_E(E1AP, "%s: Failed to encode E1AP message\n", func);
+ return -1;
+ } else {
+ MessageDef *message = itti_alloc_new_message(isCu?TASK_CUCP_E1:TASK_CUUP_E1, 0, SCTP_DATA_REQ);
+ sctp_data_req_t *s = &message->ittiMsg.sctp_data_req;
+ s->assoc_id = e1ap_assoc_id(isCu,instance);
+ s->buffer = buffer;
+ s->buffer_length = encoded;
+ s->stream = stream;
+ LOG_I(E1AP, "%s: Sending ITTI message to SCTP Task\n", func);
+ itti_send_msg_to_task(TASK_SCTP, instance, message);
+ }
+
+ return encoded;
+}
+
+void e1ap_itti_send_sctp_close_association(bool isCu, instance_t instance) {
+ MessageDef *message = itti_alloc_new_message(TASK_S1AP, 0, SCTP_CLOSE_ASSOCIATION);
+ sctp_close_association_t *sctp_close_association = &message->ittiMsg.sctp_close_association;
+ sctp_close_association->assoc_id = e1ap_assoc_id(isCu,instance);
+ itti_send_msg_to_task(TASK_SCTP, instance, message);
+}
+
+int e1ap_send_RESET(bool isCu, instance_t instance, E1AP_Reset_t *Reset) {
+ AssertFatal(false,"Not implemented yet\n");
+ E1AP_E1AP_PDU_t pdu= {0};
+ return e1ap_encode_send(isCu, instance, &pdu,0, __func__);
+}
+
+int e1ap_send_RESET_ACKNOWLEDGE(instance_t instance, E1AP_Reset_t *Reset) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1ap_handle_RESET(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1ap_handle_RESET_ACKNOWLEDGE(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+/*
+ Error Indication
+*/
+int e1ap_handle_ERROR_INDICATION(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1ap_send_ERROR_INDICATION(instance_t instance, E1AP_ErrorIndication_t *ErrorIndication) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+
+/*
+ E1 Setup: can be sent on both ways, to be refined
+*/
+
+int e1apCUUP_send_SETUP_REQUEST(instance_t instance, E1AP_Reset_t *Reset) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUCP_send_SETUP_RESPONSE(instance_t instance) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUCP_send_SETUP_FAILURE() {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUCP_handle_SETUP_REQUEST(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUUP_handle_SETUP_RESPONSE(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUUP_handle_SETUP_FAILURE(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+/*
+ E1 configuration update: can be sent in both ways, to be refined
+*/
+
+int e1apCUUP_send_gNB_DU_CONFIGURATION_UPDATE(instance_t instance) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUCP_send_gNB_DU_CONFIGURATION_FAILURE(instance_t instance) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUCP_send_gNB_DU_CONFIGURATION_UPDATE_ACKNOWLEDGE(instance_t instance) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUCP_handle_gNB_DU_CONFIGURATION_UPDATE(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUUP_handle_gNB_DU_CONFIGURATION_UPDATE_ACKNOWLEDGE(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUUP_handle_gNB_DU_CONFIGURATION_FAILURE(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+/*
+ E1 release
+*/
+
+int e1ap_send_RELEASE_REQUEST(instance_t instance) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1ap_send_RELEASE_ACKNOWLEDGE(instance_t instance) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1ap_handle_RELEASE_REQUEST(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1ap_handle_RELEASE_ACKNOWLEDGE(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+/*
+ BEARER CONTEXT SETUP REQUEST
+*/
+
+int e1apCUCP_send_BEARER_CONTEXT_SETUP_REQUEST(instance_t instance) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUUP_send_BEARER_CONTEXT_SETUP_RESPONSE(instance_t instance) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUUP_send_BEARER_CONTEXT_SETUP_FAILURE(instance_t instance) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUUP_handle_BEARER_CONTEXT_SETUP_REQUEST(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUCP_handle_BEARER_CONTEXT_SETUP_RESPONSE(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUCP_handle_BEARER_CONTEXT_SETUP_FAILURE(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+/*
+ BEARER CONTEXT MODIFICATION REQUEST
+*/
+
+int e1apCUCP_send_BEARER_CONTEXT_MODIFICATION_REQUEST(instance_t instance) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUUP_send_BEARER_CONTEXT_MODIFICATION_RESPONSE(instance_t instance) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUUP_send_BEARER_CONTEXT_MODIFICATION_FAILURE(instance_t instance) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUUP_handle_BEARER_CONTEXT_MODIFICATION_REQUEST(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUCP_handle_BEARER_CONTEXT_MODIFICATION_RESPONSE(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUCP_handle_BEARER_CONTEXT_MODIFICATION_FAILURE(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUUP_send_BEARER_CONTEXT_MODIFICATION_REQUIRED(instance_t instance) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUCP_send_BEARER_CONTEXT_MODIFICATION_CONFIRM(instance_t instance) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUCP_handle_BEARER_CONTEXT_MODIFICATION_REQUIRED(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUUP_handle_BEARER_CONTEXT_MODIFICATION_CONFIRM(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+/*
+ BEARER CONTEXT RELEASE
+*/
+
+int e1apCUCP_send_BEARER_CONTEXT_RELEASE_COMMAND(instance_t instance) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUUP_send_BEARER_CONTEXT_RELEASE_COMPLETE(instance_t instance) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUUP_send_BEARER_CONTEXT_RELEASE_REQUEST(instance_t instance) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUUP_handle_BEARER_CONTEXT_RELEASE_COMMAND(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUCP_handle_BEARER_CONTEXT_RELEASE_COMPLETE(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUCP_handle_BEARER_CONTEXT_RELEASE_REQUEST(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+/*
+BEARER CONTEXT INACTIVITY NOTIFICATION
+ */
+
+int e1apCUUP_send_BEARER_CONTEXT_INACTIVITY_NOTIFICATION(instance_t instance) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUCP_handle_BEARER_CONTEXT_INACTIVITY_NOTIFICATION(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+/*
+ DL DATA
+*/
+
+int e1apCUUP_send_DL_DATA_NOTIFICATION(instance_t instance) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUUP_send_DATA_USAGE_REPORT(instance_t instance) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUCP_handle_DL_DATA_NOTIFICATION(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
+
+int e1apCUCP_handle_send_DATA_USAGE_REPORT(instance_t instance,
+ uint32_t assoc_id,
+ uint32_t stream,
+ E1AP_E1AP_PDU_t *pdu) {
+ AssertFatal(false,"Not implemented yet\n");
+}
diff --git a/openair2/E1AP/e1ap.h b/openair2/E1AP/e1ap.h
new file mode 100644
index 00000000000..c7b2c24e8bb
--- /dev/null
+++ b/openair2/E1AP/e1ap.h
@@ -0,0 +1,34 @@
+/*
+ * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The OpenAirInterface Software Alliance licenses this file to You under
+ * the OAI Public License, Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.openairinterface.org/?page_id=698
+ *
+ * Author and copyright: Laurent Thomas, open-cells.com
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *-------------------------------------------------------------------------------
+ * For more information about the OpenAirInterface (OAI) Software Alliance:
+ * contact@openairinterface.org
+ */
+
+#ifndef __E1AP_H_
+#define __E1AP_H_
+
+#include <common/utils/LOG/log.h>
+#include "openairinterface5g_limits.h"
+#include <openair2/RRC/NR/MESSAGES/asn1_msg.h>
+
+#include <E1AP_Cause.h>
+#include <E1AP_InitiatingMessage.h>
+#include <E1AP_E1AP-PDU.h>
+#endif
--
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