+/*
+ * Copyright (c) 2019 AT&T Intellectual Property.
+ *
+ * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
+ *
+ * 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.
+ */
+
+/*
+ * This source code is part of the near-RT RIC (RAN Intelligent Controller)
+ * platform project (RICP).
+ */
+
package e2pdus
-// #cgo CFLAGS: -I../asn1codec/inc/ -I../asn1codec/e2ap_engine/
-// #cgo LDFLAGS: -L ../asn1codec/lib/ -L../asn1codec/e2ap_engine/ -le2ap_codec -lasncodec
+// #cgo CFLAGS: -I../3rdparty/asn1codec/inc/ -I../3rdparty/asn1codec/e2ap_engine/
+// #cgo LDFLAGS: -L ../3rdparty/asn1codec/lib/ -L../3rdparty/asn1codec/e2ap_engine/ -le2ap_codec -lasncodec
// #include <asn1codec_utils.h>
// #include <x2setup_request_wrapper.h>
import "C"
)
const (
+ EnvRicId = "RIC_ID"
ShortMacro_eNB_ID = 18
Macro_eNB_ID = 20
LongMacro_eNB_ID = 21
var PackedEndcX2setupRequestAsString string
var PackedX2setupRequestAsString string
-func PreparePackedEndcX2SetupRequest(maxAsn1PackedBufferSize int, maxAsn1CodecMessageBufferSize int,pLMNId []byte, eNB_Id []byte /*18, 20, 21, 28 bits length*/, bitqty uint, ricFlag []byte) ([]byte, string, error) {
+/*The Ric Id is the combination of pLMNId and ENBId*/
+var pLMNId []byte
+var eNBId []byte
+var eNBIdBitqty uint
+var ricFlag = []byte{0xbb, 0xbc, 0xcc} /*pLMNId [3]bytes*/
+
+func preparePackedEndcX2SetupRequest(maxAsn1PackedBufferSize int, maxAsn1CodecMessageBufferSize int, pLMNId []byte, eNB_Id []byte /*18, 20, 21, 28 bits length*/, bitqty uint, ricFlag []byte) ([]byte, string, error) {
packedBuf := make([]byte, maxAsn1PackedBufferSize)
errBuf := make([]C.char, maxAsn1CodecMessageBufferSize)
packedBufSize := C.ulong(len(packedBuf))
pduAsString := ""
if !C.build_pack_endc_x2setup_request(
- (*C.uchar)(unsafe.Pointer(&pLMNId[0])) /*pLMN_Identity*/,
- (*C.uchar)(unsafe.Pointer(&eNB_Id[0])),
- C.uint(bitqty),
- (*C.uchar)(unsafe.Pointer(&ricFlag[0])) /*pLMN_Identity*/,
- &packedBufSize,
- (*C.uchar)(unsafe.Pointer(&packedBuf[0])),
- C.ulong(len(errBuf)),
- &errBuf[0]) {
+ (*C.uchar)(unsafe.Pointer(&pLMNId[0])) /*pLMN_Identity*/,
+ (*C.uchar)(unsafe.Pointer(&eNB_Id[0])),
+ C.uint(bitqty),
+ (*C.uchar)(unsafe.Pointer(&ricFlag[0])) /*pLMN_Identity*/,
+ &packedBufSize,
+ (*C.uchar)(unsafe.Pointer(&packedBuf[0])),
+ C.ulong(len(errBuf)),
+ &errBuf[0]) {
return nil, "", errors.New(fmt.Sprintf("packing error: %s", C.GoString(&errBuf[0])))
}
- pdu:= C.new_pdu(C.size_t(1)) //TODO: change signature
+ pdu := C.new_pdu(C.size_t(1)) //TODO: change signature
defer C.delete_pdu(pdu)
- if C.per_unpack_pdu(pdu, packedBufSize, (*C.uchar)(unsafe.Pointer(&packedBuf[0])),C.size_t(len(errBuf)), &errBuf[0]){
+ if C.per_unpack_pdu(pdu, packedBufSize, (*C.uchar)(unsafe.Pointer(&packedBuf[0])), C.size_t(len(errBuf)), &errBuf[0]) {
C.asn1_pdu_printer(pdu, C.size_t(len(errBuf)), &errBuf[0])
pduAsString = C.GoString(&errBuf[0])
}
return packedBuf[:packedBufSize], pduAsString, nil
}
-func PreparePackedX2SetupRequest(maxAsn1PackedBufferSize int, maxAsn1CodecMessageBufferSize int,pLMNId []byte, eNB_Id []byte /*18, 20, 21, 28 bits length*/, bitqty uint, ricFlag []byte) ([]byte, string, error) {
+func preparePackedX2SetupRequest(maxAsn1PackedBufferSize int, maxAsn1CodecMessageBufferSize int, pLMNId []byte, eNB_Id []byte /*18, 20, 21, 28 bits length*/, bitqty uint, ricFlag []byte) ([]byte, string, error) {
packedBuf := make([]byte, maxAsn1PackedBufferSize)
errBuf := make([]C.char, maxAsn1CodecMessageBufferSize)
packedBufSize := C.ulong(len(packedBuf))
return nil, "", errors.New(fmt.Sprintf("packing error: %s", C.GoString(&errBuf[0])))
}
- pdu:= C.new_pdu(C.size_t(1)) //TODO: change signature
+ pdu := C.new_pdu(C.size_t(1)) //TODO: change signature
defer C.delete_pdu(pdu)
- if C.per_unpack_pdu(pdu, packedBufSize, (*C.uchar)(unsafe.Pointer(&packedBuf[0])),C.size_t(len(errBuf)), &errBuf[0]){
+ if C.per_unpack_pdu(pdu, packedBufSize, (*C.uchar)(unsafe.Pointer(&packedBuf[0])), C.size_t(len(errBuf)), &errBuf[0]) {
C.asn1_pdu_printer(pdu, C.size_t(len(errBuf)), &errBuf[0])
pduAsString = C.GoString(&errBuf[0])
}
return packedBuf[:packedBufSize], pduAsString, nil
}
+//Expected value in RIC_ID = pLMN_Identity-eNB_ID/<eNB_ID size in bits>
+//<6 hex digits>-<6 or 8 hex digits>/<18|20|21|28>
+//Each byte is represented by two hex digits, the value in the lowest byte of the eNB_ID must be assigned to the lowest bits
+//For example, to get the value of ffffeab/28 the last byte must be 0x0b, not 0xb0 (-ffffea0b/28).
+func parseRicID(ricId string) error {
+ if _, err := fmt.Sscanf(ricId, "%6x-%8x/%2d", &pLMNId, &eNBId, &eNBIdBitqty); err != nil {
+ return fmt.Errorf("unable to extract the value of %s: %s", EnvRicId, err)
+ }
+
+ if len(pLMNId) < 3 {
+ return fmt.Errorf("invalid value for %s, len(pLMNId:%v) != 3", EnvRicId, pLMNId)
+ }
+
+ if len(eNBId) < 3 {
+ return fmt.Errorf("invalid value for %s, len(eNBId:%v) != 3 or 4", EnvRicId, eNBId)
+ }
+
+ if eNBIdBitqty != ShortMacro_eNB_ID && eNBIdBitqty != Macro_eNB_ID && eNBIdBitqty != LongMacro_eNB_ID && eNBIdBitqty != Home_eNB_ID {
+ return fmt.Errorf("invalid value for %s, eNBIdBitqty: %d", EnvRicId, eNBIdBitqty)
+ }
+
+ return nil
+}
+
+func init() {
+ var err error
+ ricId := "bbbccc-abcd0e/20"
+ if err = parseRicID(ricId); err != nil {
+ panic(err)
+ }
+
+ PackedEndcX2setupRequest, PackedEndcX2setupRequestAsString, err = preparePackedEndcX2SetupRequest(MaxAsn1PackedBufferSize, MaxAsn1CodecMessageBufferSize, pLMNId, eNBId, eNBIdBitqty, ricFlag)
+ if err != nil {
+ panic(err)
+ }
+ PackedX2setupRequest, PackedX2setupRequestAsString, err = preparePackedX2SetupRequest(MaxAsn1PackedBufferSize, MaxAsn1CodecMessageBufferSize, pLMNId, eNBId, eNBIdBitqty, ricFlag)
+ if err != nil {
+ panic(err)
+ }
+}
Code Review / ric-plt / e2mgr.git / blobdiff