SDAP release DRB

openair2/SDAP/nr_sdap/nr_sdap_entity.c

@@ -468,6 +468,21 @@ nr_sdap_entity_t *nr_sdap_get_entity(ue_id_t ue_id, int pdusession_id)
   return NULL;
 }
 
+void nr_sdap_release_drb(ue_id_t ue_id, int drb_id, int pdusession_id)
+{
+  // remove all QoS flow to DRB mappings associated with the released DRB
+  nr_sdap_entity_t *sdap = nr_sdap_get_entity(ue_id, pdusession_id);
+  if (sdap) {
+    for (int i = 0; i < SDAP_MAX_QFI; i++) {
+      if (sdap->qfi2drb_table[i].drb_id == drb_id)
+        sdap->qfi2drb_table[i].drb_id = SDAP_NO_MAPPING_RULE;
+    }
+  }
+  else
+    LOG_E(SDAP, "Couldn't find a SDAP entity associated with PDU session ID %d\n",
+          pdusession_id);
+}
+
 bool nr_sdap_delete_entity(ue_id_t ue_id, int pdusession_id)
 {
   nr_sdap_entity_t *entityPtr = sdap_info.sdap_entity_llist;

openair2/SDAP/nr_sdap/nr_sdap_entity.h

@@ -169,6 +169,8 @@ nr_sdap_entity_t *new_nr_sdap_entity(int is_gnb, bool has_sdap_rx, bool has_sdap
 /* Entity Handling Related Functions */
 nr_sdap_entity_t *nr_sdap_get_entity(ue_id_t ue_id, int pdusession_id);
 
+void nr_sdap_release_drb(ue_id_t ue_id, int drb_id, int pdusession_id);
+
 /**
  * @brief Function to delete a single SDAP Entity based on the ue_id and pdusession_id.
  * @note  1. SDAP entities may have the same ue_id.