Merge pull request #1182 from tempesta-tech/ak-clear-tls-skb-list

Free all queued skbs in IO TLS contexts on connection drop handler.

Author: krizhanovsky

tempesta_fw/tls.c

@@ -103,7 +103,7 @@ tfw_tls_msg_process(void *conn, TfwFsmData *data)
 		       r);
 	case T_DROP:
 		spin_unlock(&tls->lock);
-		__kfree_skb(skb);
+		/* The skb is freed in tfw_tls_conn_dtor(). */
 		return r;
 	case T_POSTPONE:
 		/*
@@ -495,8 +495,16 @@ tfw_tls_send(TlsCtx *tls, struct sg_table *sgt, bool close)
 static void
 tfw_tls_conn_dtor(void *c)
 {
+	struct sk_buff *skb;
 	TlsCtx *tls = tfw_tls_context(c);
 
+	if (tls) {
+		while ((skb = ss_skb_dequeue(&tls->io_in.skb_list)))
+			kfree_skb(skb);
+		while ((skb = ss_skb_dequeue(&tls->io_out.skb_list)))
+			kfree_skb(skb);
+	}
+
 	ttls_ctx_clear(tls);
 	tfw_cli_conn_release((TfwCliConn *)c);
 }