E2Manager/asn1codec/src/x2setup_request_wrapper.c

   1 /*
   2  *
   3  * Copyright 2019 AT&T Intellectual Property
   4  * Copyright 2019 Nokia
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  *      http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  *
  18  */
  19
  20 #include <string.h>
  21 #include <errno.h>
  22 #undef NDEBUG
  23 #include <assert.h>
  24 #include <asn_application.h>
  25 #include <E2AP-PDU.h>
  26 #include <ProcedureCode.h>
  27 #include <InitiatingMessage.h>
  28 #include <X2SetupRequest.h>
  29 #include <GlobalENB-ID.h>
  30 #include <PLMN-Identity.h>
  31 #include <ENB-ID.h>
  32 #include <FDD-Info.h>
  33 #include <ServedCells.h>
  34 #include <ProtocolIE-ID.h>
  35 #include <ProtocolIE-Field.h>
  36 #include <x2setup_request_wrapper.h>
  37
  38 static void assignPLMN_Identity (PLMN_Identity_t *pLMN_Identity, uint8_t const* pLMNId);
  39 static void assignENB_ID(GlobalENB_ID_t *globalENB_ID,uint8_t const* eNBId, unsigned int bitqty);
  40 static void assignServedCell_Information(ServedCell_Information_t *servedCell_Information,uint8_t const* pLMN_Identity, uint8_t const* eNBId, unsigned int bitqty,uint8_t const *ric_flag);
  41
  42 /*
  43  * Build and pack X2 setup request.
  44  * Abort the process on allocation failure.
  45  *  packed_buf_size - in: size of packed_buf; out: number of chars used.
  46  */
  47
  48 bool
  49 build_pack_x2setup_request(
  50                 uint8_t const* pLMN_Identity, uint8_t const* eNBId, unsigned int bitqty /*18, 20, 21, 28*/, uint8_t const *ric_flag,
  51                 size_t* packed_buf_size, unsigned char* packed_buf,size_t err_buf_size, char* err_buf
  52 )
  53 {
  54         return build_pack_x2setup_request_aux(
  55                         pLMN_Identity, eNBId, bitqty, ric_flag,
  56                         packed_buf_size, packed_buf,err_buf_size,err_buf,ATS_ALIGNED_BASIC_PER);
  57
  58 }
  59
  60 bool
  61 build_pack_x2setup_request_aux(
  62                 uint8_t const* pLMN_Identity, uint8_t const* eNBId, unsigned int bitqty /*18, 20, 21, 28*/, uint8_t const *ric_flag,
  63                 size_t* packed_buf_size, unsigned char* packed_buf,size_t err_buf_size, char* err_buf,enum asn_transfer_syntax syntax
  64 )
  65 {
  66         bool rc = true;
  67         E2AP_PDU_t *pdu = calloc(1, sizeof(E2AP_PDU_t));
  68         InitiatingMessage_t *initiatingMessage = calloc(1, sizeof(InitiatingMessage_t));
  69         X2SetupRequest_t *x2SetupRequest;
  70
  71     assert(pdu != 0);
  72     assert(initiatingMessage != 0);
  73
  74
  75     pdu->present = E2AP_PDU_PR_initiatingMessage;
  76     pdu->choice.initiatingMessage = initiatingMessage;
  77
  78     initiatingMessage->procedureCode = ProcedureCode_id_x2Setup;
  79     initiatingMessage->criticality = Criticality_reject;
  80     initiatingMessage->value.present = InitiatingMessage__value_PR_X2SetupRequest;
  81     x2SetupRequest = &initiatingMessage->value.choice.X2SetupRequest;
  82
  83     X2SetupRequest_IEs_t *globalENB_ID_ie = calloc(1, sizeof(X2SetupRequest_IEs_t));
  84     assert(globalENB_ID_ie != 0);
  85     ASN_SEQUENCE_ADD(&x2SetupRequest->protocolIEs, globalENB_ID_ie);
  86
  87     globalENB_ID_ie->id = ProtocolIE_ID_id_GlobalENB_ID;
  88     globalENB_ID_ie->criticality = Criticality_reject;
  89     globalENB_ID_ie->value.present = X2SetupRequest_IEs__value_PR_GlobalENB_ID;
  90         GlobalENB_ID_t *globalENB_ID = &globalENB_ID_ie->value.choice.GlobalENB_ID;
  91
  92         assignPLMN_Identity(&globalENB_ID->pLMN_Identity, pLMN_Identity);
  93         assignENB_ID(globalENB_ID, eNBId, bitqty);
  94
  95     X2SetupRequest_IEs_t *servedCells_ie = calloc(1, sizeof(X2SetupRequest_IEs_t));
  96     assert(servedCells_ie != 0);
  97     ASN_SEQUENCE_ADD(&x2SetupRequest->protocolIEs, servedCells_ie);
  98
  99     servedCells_ie->id = ProtocolIE_ID_id_ServedCells;
 100     servedCells_ie->criticality = Criticality_reject;
 101     servedCells_ie->value.present = X2SetupRequest_IEs__value_PR_ServedCells;
 102
 103     ServedCells__Member *servedCells__Member = calloc(1,sizeof(ServedCells__Member));
 104     assert(servedCells__Member !=0);
 105     ASN_SEQUENCE_ADD(&servedCells_ie->value.choice.ServedCells, servedCells__Member);
 106
 107     assignServedCell_Information(&servedCells__Member->servedCellInfo, pLMN_Identity,eNBId, bitqty,ric_flag);
 108
 109     rc = pack_pdu_aux(pdu, packed_buf_size, packed_buf,err_buf_size, err_buf,syntax);
 110
 111     ASN_STRUCT_FREE(asn_DEF_E2AP_PDU, pdu);
 112     return rc;
 113 }
 114
 115 static void assignPLMN_Identity (PLMN_Identity_t *pLMN_Identity, uint8_t const* pLMNId)
 116 {
 117         pLMN_Identity->size = pLMN_Identity_size;
 118         pLMN_Identity->buf = calloc(1,pLMN_Identity->size);
 119         assert(pLMN_Identity->buf != 0);
 120         memcpy(pLMN_Identity->buf, pLMNId, pLMN_Identity->size);
 121 }
 122
 123 /*
 124  * Calculate and assign the value of ENB_ID.
 125  * Abort the process on allocation failure.
 126  */
 127 static void assignENB_ID(GlobalENB_ID_t *globalENB_ID,uint8_t const* eNBId, unsigned int bitqty)
 128 {
 129         size_t size_in_bytes = (bitqty / 8) + ((bitqty % 8) > 0);
 130         int unused_bits = 8 - (bitqty % 8);
 131         uint8_t *tbuf;
 132         switch (bitqty){
 133         case shortMacro_eNB_ID_size:
 134                 globalENB_ID->eNB_ID.present = ENB_ID_PR_short_Macro_eNB_ID;
 135                 globalENB_ID->eNB_ID.choice.short_Macro_eNB_ID.size = size_in_bytes;
 136                 globalENB_ID->eNB_ID.choice.short_Macro_eNB_ID.bits_unused = unused_bits;
 137                 tbuf = globalENB_ID->eNB_ID.choice.short_Macro_eNB_ID.buf = calloc(1, size_in_bytes);
 138                 assert(globalENB_ID->eNB_ID.choice.short_Macro_eNB_ID.buf  != 0);
 139                 memcpy(globalENB_ID->eNB_ID.choice.short_Macro_eNB_ID.buf,eNBId, size_in_bytes) ;
 140                 tbuf[size_in_bytes - 1] <<= unused_bits;
 141                 break;
 142         case macro_eNB_ID_size:
 143                 globalENB_ID->eNB_ID.present =ENB_ID_PR_macro_eNB_ID;
 144                 globalENB_ID->eNB_ID.choice.macro_eNB_ID.size = size_in_bytes;
 145                 globalENB_ID->eNB_ID.choice.macro_eNB_ID.bits_unused = unused_bits;
 146                 tbuf = globalENB_ID->eNB_ID.choice.macro_eNB_ID.buf = calloc(1, size_in_bytes);
 147                 assert(globalENB_ID->eNB_ID.choice.macro_eNB_ID.buf != 0);
 148                 memcpy(globalENB_ID->eNB_ID.choice.macro_eNB_ID.buf,eNBId,size_in_bytes);
 149                 tbuf[size_in_bytes - 1] <<= unused_bits;
 150                 break;
 151         case longMacro_eNB_ID_size:
 152                 globalENB_ID->eNB_ID.present =ENB_ID_PR_long_Macro_eNB_ID;
 153                 globalENB_ID->eNB_ID.choice.long_Macro_eNB_ID.size = size_in_bytes;
 154                 globalENB_ID->eNB_ID.choice.long_Macro_eNB_ID.bits_unused = unused_bits;
 155                 tbuf = globalENB_ID->eNB_ID.choice.long_Macro_eNB_ID.buf = calloc(1, size_in_bytes);
 156                 assert(globalENB_ID->eNB_ID.choice.long_Macro_eNB_ID.buf != 0);
 157                 memcpy(globalENB_ID->eNB_ID.choice.long_Macro_eNB_ID.buf,eNBId,size_in_bytes);
 158                 tbuf[size_in_bytes - 1] <<= unused_bits;
 159                 break;
 160         case home_eNB_ID_size:
 161                 globalENB_ID->eNB_ID.present = ENB_ID_PR_home_eNB_ID;
 162                 globalENB_ID->eNB_ID.choice.home_eNB_ID.size = size_in_bytes;
 163                 globalENB_ID->eNB_ID.choice.home_eNB_ID.bits_unused =unused_bits;
 164                 tbuf = globalENB_ID->eNB_ID.choice.home_eNB_ID.buf = calloc(1,size_in_bytes);
 165                 assert(globalENB_ID->eNB_ID.choice.home_eNB_ID.buf != 0);
 166                 memcpy(globalENB_ID->eNB_ID.choice.home_eNB_ID.buf,eNBId,size_in_bytes);
 167                 tbuf[size_in_bytes - 1] <<= unused_bits;
 168                 break;
 169         default:
 170                 break;
 171         }
 172
 173 }
 174
 175 /*
 176  * Calculate and assign the value of ServedCell_Information.
 177  * Abort the process on allocation failure.
 178  */
 179 static void assignServedCell_Information(
 180                 ServedCell_Information_t *servedCell_Information,
 181                 uint8_t const* pLMN_Identity,
 182                 uint8_t const* eNBId,
 183                 unsigned int bitqty,
 184                 uint8_t const *ric_flag)
 185 {
 186         size_t size_in_bytes =  (eUTRANcellIdentifier_size / 8) + ((eUTRANcellIdentifier_size % 8) > 0);
 187         int unused_bits = 8 - (eUTRANcellIdentifier_size % 8);
 188         size_t bitqty_size_in_bytes = (bitqty / 8) + ((bitqty % 8) > 0);
 189         int bitqty_unused_bits = 8 - (bitqty % 8);
 190
 191         servedCell_Information->pCI = 503;
 192         assignPLMN_Identity(&servedCell_Information->cellId.pLMN_Identity, pLMN_Identity);
 193
 194         servedCell_Information->cellId.eUTRANcellIdentifier.size = size_in_bytes;
 195         servedCell_Information->cellId.eUTRANcellIdentifier.bits_unused = unused_bits;
 196         servedCell_Information->cellId.eUTRANcellIdentifier.buf = calloc(1,servedCell_Information->cellId.eUTRANcellIdentifier.size);
 197         assert(servedCell_Information->cellId.eUTRANcellIdentifier.buf != 0);
 198         memcpy(servedCell_Information->cellId.eUTRANcellIdentifier.buf, eNBId, bitqty_size_in_bytes);
 199         if (bitqty < eUTRANcellIdentifier_size) {
 200                 servedCell_Information->cellId.eUTRANcellIdentifier.buf[bitqty_size_in_bytes - 1] <<= bitqty_unused_bits;
 201         } else {
 202                 servedCell_Information->cellId.eUTRANcellIdentifier.buf[size_in_bytes - 1] <<= unused_bits;
 203         }
 204
 205         servedCell_Information->tAC.size = 2;
 206         servedCell_Information->tAC.buf = calloc(1,servedCell_Information->tAC.size);
 207         assert(servedCell_Information->tAC.buf != 0);
 208
 209
 210         PLMN_Identity_t *broadcastPLMN_Identity = calloc(1, sizeof(PLMN_Identity_t));
 211         assert(broadcastPLMN_Identity != 0);
 212         ASN_SEQUENCE_ADD(&servedCell_Information->broadcastPLMNs, broadcastPLMN_Identity);
 213
 214         assignPLMN_Identity(broadcastPLMN_Identity,ric_flag);
 215
 216         servedCell_Information->eUTRA_Mode_Info.present= EUTRA_Mode_Info_PR_fDD;
 217         servedCell_Information->eUTRA_Mode_Info.choice.fDD = calloc(1, sizeof(FDD_Info_t));
 218         assert(servedCell_Information->eUTRA_Mode_Info.choice.fDD != 0);
 219         servedCell_Information->eUTRA_Mode_Info.choice.fDD->uL_EARFCN = 0;
 220         servedCell_Information->eUTRA_Mode_Info.choice.fDD->dL_EARFCN = 0;
 221         servedCell_Information->eUTRA_Mode_Info.choice.fDD->uL_Transmission_Bandwidth = Transmission_Bandwidth_bw6;
 222         servedCell_Information->eUTRA_Mode_Info.choice.fDD->dL_Transmission_Bandwidth = Transmission_Bandwidth_bw15;
 223 }
 224
 225 /* Build and pack X2 setup request.
 226  * Abort the process on allocation failure.
 227  * packed_buf_size - in: size of packed_buf; out: number of chars used.
 228  */
 229 bool
 230 build_pack_endc_x2setup_request(
 231                 uint8_t const* pLMN_Identity, uint8_t const* eNBId, unsigned int bitqty /*18, 20, 21, 28*/, uint8_t const *ric_flag,
 232                 size_t* packed_buf_size, unsigned char* packed_buf,size_t err_buf_size, char* err_buf
 233 )
 234 {
 235         return build_pack_endc_x2setup_request_aux(
 236                         pLMN_Identity, eNBId, bitqty, ric_flag,
 237                         packed_buf_size, packed_buf,err_buf_size,  err_buf,ATS_ALIGNED_BASIC_PER
 238         );
 239 }
 240
 241 bool
 242 build_pack_endc_x2setup_request_aux(
 243                 uint8_t const* pLMN_Identity, uint8_t const* eNBId, unsigned int bitqty /*18, 20, 21, 28*/, uint8_t const *ric_flag,
 244                 size_t* packed_buf_size, unsigned char* packed_buf,size_t err_buf_size, char* err_buf,enum asn_transfer_syntax syntax
 245 )
 246 {
 247         bool rc = true;
 248         E2AP_PDU_t *pdu = calloc(1, sizeof(E2AP_PDU_t));
 249         InitiatingMessage_t *initiatingMessage = calloc(1, sizeof(InitiatingMessage_t));
 250         ENDCX2SetupRequest_t *endcX2SetupRequest;
 251
 252     assert(pdu != 0);
 253     assert(initiatingMessage != 0);
 254
 255     pdu->present = E2AP_PDU_PR_initiatingMessage;
 256     pdu->choice.initiatingMessage = initiatingMessage;
 257
 258     initiatingMessage->procedureCode = ProcedureCode_id_endcX2Setup;
 259     initiatingMessage->criticality = Criticality_reject;
 260     initiatingMessage->value.present = InitiatingMessage__value_PR_ENDCX2SetupRequest;
 261     endcX2SetupRequest = &initiatingMessage->value.choice.ENDCX2SetupRequest;
 262     ENDCX2SetupRequest_IEs_t *endcX2SetupRequest_IEs = calloc(1, sizeof(ENDCX2SetupRequest_IEs_t));
 263     assert(endcX2SetupRequest_IEs != 0);
 264         ASN_SEQUENCE_ADD(&endcX2SetupRequest->protocolIEs, endcX2SetupRequest_IEs);
 265         endcX2SetupRequest_IEs->id = ProtocolIE_ID_id_InitiatingNodeType_EndcX2Setup;
 266         endcX2SetupRequest_IEs->criticality = Criticality_reject;
 267         endcX2SetupRequest_IEs->value.present = ENDCX2SetupRequest_IEs__value_PR_InitiatingNodeType_EndcX2Setup;
 268         endcX2SetupRequest_IEs->value.choice.InitiatingNodeType_EndcX2Setup.present = InitiatingNodeType_EndcX2Setup_PR_init_eNB;
 269
 270         ProtocolIE_Container_119P85_t *enb_ENDCX2SetupReqIE_Container = calloc(1, sizeof(ProtocolIE_Container_119P85_t));
 271         assert(enb_ENDCX2SetupReqIE_Container != 0);
 272         endcX2SetupRequest_IEs->value.choice.InitiatingNodeType_EndcX2Setup.choice.init_eNB = (struct ProtocolIE_Container*)enb_ENDCX2SetupReqIE_Container;
 273         ENB_ENDCX2SetupReqIEs_t *globalENB_ID_ie = calloc(1, sizeof(ENB_ENDCX2SetupReqIEs_t));
 274         assert(globalENB_ID_ie != 0);
 275         ASN_SEQUENCE_ADD(enb_ENDCX2SetupReqIE_Container,globalENB_ID_ie);
 276         globalENB_ID_ie->id = ProtocolIE_ID_id_GlobalENB_ID;
 277         globalENB_ID_ie->criticality = Criticality_reject;
 278         globalENB_ID_ie->value.present = ENB_ENDCX2SetupReqIEs__value_PR_GlobalENB_ID;
 279
 280         GlobalENB_ID_t *globalENB_ID = &globalENB_ID_ie->value.choice.GlobalENB_ID;
 281         assignPLMN_Identity(&globalENB_ID->pLMN_Identity, pLMN_Identity);
 282         assignENB_ID(globalENB_ID, eNBId, bitqty);
 283
 284
 285         ENB_ENDCX2SetupReqIEs_t *ServedEUTRAcellsENDCX2ManagementList_ie = calloc(1, sizeof(ENB_ENDCX2SetupReqIEs_t));
 286         assert(ServedEUTRAcellsENDCX2ManagementList_ie != 0);
 287     ASN_SEQUENCE_ADD(enb_ENDCX2SetupReqIE_Container, ServedEUTRAcellsENDCX2ManagementList_ie);
 288
 289     ServedEUTRAcellsENDCX2ManagementList_ie->id = ProtocolIE_ID_id_ServedEUTRAcellsENDCX2ManagementList;
 290         ServedEUTRAcellsENDCX2ManagementList_ie->criticality = Criticality_reject;
 291         ServedEUTRAcellsENDCX2ManagementList_ie->value.present = ENB_ENDCX2SetupReqIEs__value_PR_ServedEUTRAcellsENDCX2ManagementList;
 292
 293
 294         ServedEUTRAcellsENDCX2ManagementList__Member *servedEUTRAcellsENDCX2ManagementList__Member = calloc(1, sizeof(ServedEUTRAcellsENDCX2ManagementList__Member));
 295         assert(servedEUTRAcellsENDCX2ManagementList__Member != 0);
 296         ASN_SEQUENCE_ADD(&ServedEUTRAcellsENDCX2ManagementList_ie->value.choice.ServedEUTRAcellsENDCX2ManagementList, servedEUTRAcellsENDCX2ManagementList__Member);
 297
 298         assignServedCell_Information(&servedEUTRAcellsENDCX2ManagementList__Member->servedEUTRACellInfo, pLMN_Identity, eNBId, bitqty,ric_flag);
 299
 300     rc = pack_pdu_aux(pdu, packed_buf_size, packed_buf,err_buf_size, err_buf, syntax);
 301
 302     ASN_STRUCT_FREE(asn_DEF_E2AP_PDU, pdu);
 303     return rc;
 304 }