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: 718479 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.osmocom.org (lists.osmocom.org [IPv6:2a01:4f8:191:444b::2:7]) by ozlabs.org (Postfix) with ESMTP id 3v6VSZ4W76z9ryQ for ; Mon, 23 Jan 2017 23:07:58 +1100 (AEDT) Received: from lists.osmocom.org (lists.osmocom.org [144.76.43.76]) by lists.osmocom.org (Postfix) with ESMTP id 3006D21A6; Mon, 23 Jan 2017 12:07:57 +0000 (UTC) Authentication-Results: lists.osmocom.org; dmarc=none header.from=tpip.net X-Original-To: openbsc@lists.osmocom.org Delivered-To: openbsc@lists.osmocom.org Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=92.43.49.48; helo=mail.tpip.net; envelope-from=aschultz@tpip.net; receiver=openbsc@lists.osmocom.org Authentication-Results: lists.osmocom.org; dmarc=none header.from=tpip.net Received: from mail.tpip.net (mail.tpip.net [92.43.49.48]) by lists.osmocom.org (Postfix) with ESMTP id F22FE2047 for ; Mon, 23 Jan 2017 12:06:52 +0000 (UTC) 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 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> X-BeenThere: openbsc@lists.osmocom.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Development of OpenBSC, OsmoBSC, OsmoNITB, OsmoCSCN" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: netdev@vger.kernel.org, Lionel Gauthier , openbsc@lists.osmocom.org Errors-To: openbsc-bounces@lists.osmocom.org Sender: "OpenBSC" 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);