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Bugfix when deleting a SDAP entity that is not the first one on the list and prevents segfault when removing the last one on the list

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Fix delete entity function, a SDAP entity is a combination of a UE and PDUSession, we cannot just simply delete the first entity for a UE
This commit is contained in:
luis_pereira87
2023-07-03 09:42:06 +01:00
parent 10d2af11b8
commit 57a3f9fe2f
1 changed files with 13 additions and 15 deletions
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openair2/SDAP/nr_sdap/nr_sdap_entity.c
+13 -15
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@@ -468,23 +468,21 @@ nr_sdap_entity_t *nr_sdap_get_entity(ue_id_t ue_id, int pdusession_id)
return NULL;
}
void delete_nr_sdap_entity(ue_id_t ue_id)
int nr_sdap_delete_entity(ue_id_t ue_id, int pdusession_id)
{
nr_sdap_entity_t *entityPtr, *entityPrev = NULL;
entityPtr = sdap_info.sdap_entity_llist;
if (entityPtr->ue_id == ue_id) {
sdap_info.sdap_entity_llist = sdap_info.sdap_entity_llist->next_entity;
free(entityPtr);
} else {
while (entityPtr->ue_id != ue_id && entityPtr->next_entity != NULL) {
entityPrev = entityPtr;
entityPtr = entityPtr->next_entity;
}
if (entityPtr->ue_id != ue_id) {
entityPrev->next_entity = entityPtr->next_entity;
nr_sdap_entity_t *entityPtr = sdap_info.sdap_entity_llist;
int pos = 0;
while (entityPtr != NULL) {
if (entityPtr->ue_id == ue_id && entityPtr->pdusession_id == pdusession_id) {
if (pos == 0) {
sdap_info.sdap_entity_llist = sdap_info.sdap_entity_llist->next_entity;
}
LOG_I(SDAP, "Deleting SDAP entity for UE %lx and PDU Session id %d\n", ue_id, entityPtr->pdusession_id);
free(entityPtr);
return 1;
}
entityPtr = entityPtr->next_entity;
pos++;
}
return 0;
}