Added support for Phase1 IV synchronization to HA plugin

src/libcharon/plugins/ha/ha_cache.c

@@ -88,6 +88,8 @@ typedef struct {
 	ha_message_t *midi;
 	/* last responder mid */
 	ha_message_t *midr;
+	/* last IV update */
+	ha_message_t *iv;
 } entry_t;
 
 /**
@@ -114,6 +116,7 @@ static void entry_destroy(entry_t *entry)
 	entry->add->destroy(entry->add);
 	DESTROY_IF(entry->midi);
 	DESTROY_IF(entry->midr);
+	DESTROY_IF(entry->iv);
 	free(entry);
 }
 
@@ -164,6 +167,16 @@ METHOD(ha_cache_t, cache, void,
 			}
 			message->destroy(message);
 			break;
+		case HA_IKE_IV:
+			entry = this->cache->get(this->cache, ike_sa);
+			if (entry)
+			{
+				DESTROY_IF(entry->iv);
+				entry->iv = message;
+				break;
+			}
+			message->destroy(message);
+			break;
 		case HA_IKE_DELETE:
 			entry = this->cache->remove(this->cache, ike_sa);
 			if (entry)
@@ -309,6 +322,10 @@ METHOD(ha_cache_t, resync, void,
 			{
 				this->socket->push(this->socket, entry->midr);
 			}
+			if (entry->iv)
+			{
+				this->socket->push(this->socket, entry->iv);
+			}
 		}
 	}
 	enumerator->destroy(enumerator);