Refactor fill_default_reconfig(): return reconfig

Simplify code by returning an allocated object to an RRCReconfiguration.
It leads to less code and is easier to reason about, because each call
will return a new RRCReconfiguration, which can be freed, irrespective
of other calls to fill_default_reconfig().

openair2/RRC/NR/nr_rrc_proto.h

@@ -66,12 +66,7 @@ void rrc_add_nsa_user(gNB_RRC_INST *rrc, rrc_gNB_ue_context_t *ue_context_p, x2a
 void rrc_remove_nsa_user(gNB_RRC_INST *rrc, int rnti);
 void rrc_remove_ue(gNB_RRC_INST *rrc, rrc_gNB_ue_context_t *ue_context_p);
 
-void fill_default_reconfig(NR_ServingCellConfigCommon_t *servingcellconfigcommon,
-                           NR_ServingCellConfig_t *servingcellconfigdedicated,
-                           NR_RRCReconfiguration_IEs_t *reconfig,
-                           NR_CellGroupConfig_t *secondaryCellGroup,
-                           NR_UE_NR_Capability_t *uecap,
-                           int uid);
+NR_RRCReconfiguration_IEs_t *get_default_reconfig(const NR_CellGroupConfig_t *secondaryCellGroup);
 
 int generate_CG_Config(gNB_RRC_INST *rrc, 
 		       NR_CG_Config_t *cg_Config,

openair2/RRC/NR/rrc_gNB_nsa.c

@@ -159,8 +159,6 @@ void rrc_add_nsa_user(gNB_RRC_INST *rrc, rrc_gNB_ue_context_t *ue_context_p, x2a
   memset((void *)UE->reconfig, 0, sizeof(NR_RRCReconfiguration_t));
   UE->reconfig->rrc_TransactionIdentifier = 0;
   UE->reconfig->criticalExtensions.present = NR_RRCReconfiguration__criticalExtensions_PR_rrcReconfiguration;
-  NR_RRCReconfiguration_IEs_t *reconfig_ies=calloc(1,sizeof(NR_RRCReconfiguration_IEs_t));
-  UE->reconfig->criticalExtensions.choice.rrcReconfiguration = reconfig_ies;
   if (get_softmodem_params()->phy_test == 1 || get_softmodem_params()->do_ra == 1 || get_softmodem_params()->sa == 1){
     UE->rb_config = get_default_rbconfig(10 /* EPS bearer ID */, 1 /* drb ID */, NR_CipheringAlgorithm_nea0, NR_SecurityConfig__keyToUse_master);
   } else {
@@ -259,7 +257,7 @@ void rrc_add_nsa_user(gNB_RRC_INST *rrc, rrc_gNB_ue_context_t *ue_context_p, x2a
   AssertFatal(UE->secondaryCellGroup != NULL, "out of memory\n");
   xer_fprint(stdout, &asn_DEF_NR_CellGroupConfig, UE->secondaryCellGroup);
 
-  fill_default_reconfig(sccc, scc, reconfig_ies, UE->secondaryCellGroup, UE->UE_Capability_nr, ue_context_p->ue_context.rrc_ue_id);
+  UE->reconfig->criticalExtensions.choice.rrcReconfiguration = get_default_reconfig(UE->secondaryCellGroup);
   UE->rnti = UE->secondaryCellGroup->spCellConfig->reconfigurationWithSync->newUE_Identity;
   NR_CG_Config_t *CG_Config = calloc(1,sizeof(*CG_Config));
   memset((void *)CG_Config,0,sizeof(*CG_Config));

openair2/RRC/NR/rrc_gNB_reconfig.c

@@ -49,14 +49,10 @@
 #include "nr_rrc_config.h"
 #include "MESSAGES/asn1_msg.h"
 
-void fill_default_reconfig(NR_ServingCellConfigCommon_t *servingcellconfigcommon,
-                           NR_ServingCellConfig_t *servingcellconfigdedicated,
-                           NR_RRCReconfiguration_IEs_t *reconfig,
-                           NR_CellGroupConfig_t *secondaryCellGroup,
-                           NR_UE_NR_Capability_t *uecap,
-                           int uid) {
-  AssertFatal(servingcellconfigcommon!=NULL,"servingcellconfigcommon is null\n");
-  AssertFatal(reconfig!=NULL,"reconfig is null\n");
+NR_RRCReconfiguration_IEs_t *get_default_reconfig(const NR_CellGroupConfig_t *secondaryCellGroup)
+{
+  NR_RRCReconfiguration_IEs_t *reconfig = calloc(1, sizeof(NR_RRCReconfiguration_IEs_t));
+  AssertFatal(reconfig != NULL, "out of memory\n");
   AssertFatal(secondaryCellGroup!=NULL,"secondaryCellGroup is null\n");
   // radioBearerConfig
   reconfig->radioBearerConfig=NULL;
@@ -74,6 +70,7 @@ void fill_default_reconfig(NR_ServingCellConfigCommon_t *servingcellconfigcommon
   reconfig->lateNonCriticalExtension = NULL;
   // nonCriticalExtension
   reconfig->nonCriticalExtension = NULL;
+  return reconfig;
 }
 
 /* Function to set or overwrite PTRS DL RRC parameters */