From patchwork Mon Jan 23 11:57:01 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andreas Schultz X-Patchwork-Id: 718472 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3v6VSD44BNz9ryQ for ; Mon, 23 Jan 2017 23:07:40 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751171AbdAWMH3 (ORCPT ); Mon, 23 Jan 2017 07:07:29 -0500 Received: from mail.tpip.net ([92.43.49.48]:42814 "EHLO mail.tpip.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750997AbdAWMGy (ORCPT ); Mon, 23 Jan 2017 07:06:54 -0500 Received: from office.tpip.net (unknown [153.92.65.89]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.tpip.net (Postfix) with ESMTPS id D4BEA4F410; Mon, 23 Jan 2017 11:57:13 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by office.tpip.net (Postfix) with ESMTP id AF4D7A2C94; Mon, 23 Jan 2017 12:57:13 +0100 (CET) Received: from office.tpip.net ([127.0.0.1]) by localhost (office.tpip.net [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id FmnxkuHKYGfv; Mon, 23 Jan 2017 12:57:13 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by office.tpip.net (Postfix) with ESMTP id 6A9C8A2C97; Mon, 23 Jan 2017 12:57:13 +0100 (CET) X-Virus-Scanned: amavisd-new at tpip.net Received: from office.tpip.net ([127.0.0.1]) by localhost (office.tpip.net [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id WzVgyGB-4lh3; Mon, 23 Jan 2017 12:57:13 +0100 (CET) Received: from localhost.localdomain (pd95c9392.dip0.t-ipconnect.de [217.92.147.146]) by office.tpip.net (Postfix) with ESMTPSA id 25D2EA2CC1; Mon, 23 Jan 2017 12:57:13 +0100 (CET) From: Andreas Schultz To: Pablo Neira Cc: netdev@vger.kernel.org, Harald Welte , Lionel Gauthier , openbsc@lists.osmocom.org Subject: [PATCH 12/17] gtp: let userspace handle packets for invalid tunnels Date: Mon, 23 Jan 2017 12:57:01 +0100 Message-Id: <20170123115706.4354-13-aschultz@tpip.net> X-Mailer: git-send-email 2.10.2 In-Reply-To: <20170123115706.4354-1-aschultz@tpip.net> References: <20170123115706.4354-1-aschultz@tpip.net> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org enable userspace to send error replies for invalid tunnels Signed-off-by: Andreas Schultz --- drivers/net/gtp.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c index 868467d..290c400 100644 --- a/drivers/net/gtp.c +++ b/drivers/net/gtp.c @@ -186,7 +186,7 @@ static int gtp_rx(struct sk_buff *skb, struct pdp_ctx *pctx, unsigned int hdrlen if (!gtp_check_src_ms(skb, pctx, hdrlen)) { pr_debug("No PDP ctx for this MS\n"); - return -1; + return 1; } /* Get rid of the GTP + UDP headers. */ @@ -236,7 +236,7 @@ static int gtp0_udp_encap_recv(struct gtp_dev *gtp, struct sk_buff *skb) pctx = gtp0_pdp_find(gtp, be64_to_cpu(gtp0->tid)); if (IS_ERR(pctx)) { netdev_dbg(gtp->dev, "No PDP ctx to decap skb=%p\n", skb); - return -1; + return 1; } return gtp_rx(skb, pctx, hdrlen); @@ -278,7 +278,7 @@ static int gtp1u_udp_encap_recv(struct gtp_dev *gtp, struct sk_buff *skb) pctx = gtp1_pdp_find(gtp, ntohl(gtp1->tid)); if (IS_ERR(pctx)) { netdev_dbg(gtp->dev, "No PDP ctx to decap skb=%p\n", skb); - return -1; + return 1; } return gtp_rx(skb, pctx, hdrlen);