From patchwork Mon May 9 18:07:10 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Lunn X-Patchwork-Id: 16127 X-Patchwork-Delegate: mareklindner@neomailbox.ch Return-Path: X-Original-To: patchwork@open-mesh.org Delivered-To: patchwork@open-mesh.org Received: from open-mesh.org (localhost [IPv6:::1]) by open-mesh.org (Postfix) with ESMTP id 84084827BE; Mon, 9 May 2016 20:08:26 +0200 (CEST) Authentication-Results: open-mesh.org; dmarc=none header.from=lunn.ch Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=178.209.37.122; helo=vps0.lunn.ch; envelope-from=andrew@lunn.ch; receiver=b.a.t.m.a.n@lists.open-mesh.org Authentication-Results: open-mesh.org; dmarc=none header.from=lunn.ch Received: from vps0.lunn.ch (vps0.lunn.ch [178.209.37.122]) by open-mesh.org (Postfix) with ESMTPS id 44C4F827BE for ; Mon, 9 May 2016 20:08:25 +0200 (CEST) Received: from andrew by vps0.lunn.ch with local (Exim 4.80) (envelope-from ) id 1azpaV-0004iy-9k; Mon, 09 May 2016 20:07:23 +0200 From: Andrew Lunn To: "B.A.T.M.A.N" Date: Mon, 9 May 2016 20:07:10 +0200 Message-Id: <1462817239-18104-4-git-send-email-andrew@lunn.ch> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1462817239-18104-1-git-send-email-andrew@lunn.ch> References: <1462817239-18104-1-git-send-email-andrew@lunn.ch> Subject: [B.A.T.M.A.N.] [PATCHv4 03/12] batman-adv: Suppress debugfs entries for netns's X-BeenThere: b.a.t.m.a.n@lists.open-mesh.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: The list for a Better Approach To Mobile Ad-hoc Networking List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: The list for a Better Approach To Mobile Ad-hoc Networking Errors-To: b.a.t.m.a.n-bounces@lists.open-mesh.org Sender: "B.A.T.M.A.N" Debugfs is not netns aware. It thus has problems when the same interface name exists in multiple network name spaces. Work around this by not creating entries for interfaces in name spaces other than the default name space. This means meshes in network namespaces cannot be managed via debugfs, but there will soon be a netlink interface which is netns aware. Signed-off-by: Andrew Lunn --- v2: Fix accidental change to __printf Add missing includes. --- net/batman-adv/debugfs.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/net/batman-adv/debugfs.c b/net/batman-adv/debugfs.c index 9529004..e54f0da 100644 --- a/net/batman-adv/debugfs.c +++ b/net/batman-adv/debugfs.c @@ -42,6 +42,7 @@ #include #include #include +#include #include #include "bridge_loop_avoidance.h" @@ -495,12 +496,16 @@ void batadv_debugfs_destroy(void) */ int batadv_debugfs_add_hardif(struct batadv_hard_iface *hard_iface) { + struct net *net = dev_net(hard_iface->net_dev); struct batadv_debuginfo **bat_debug; struct dentry *file; if (!batadv_debugfs) goto out; + if (net != &init_net) + return 0; + hard_iface->debug_dir = debugfs_create_dir(hard_iface->net_dev->name, batadv_debugfs); if (!hard_iface->debug_dir) @@ -531,6 +536,11 @@ out: */ void batadv_debugfs_del_hardif(struct batadv_hard_iface *hard_iface) { + struct net *net = dev_net(hard_iface->net_dev); + + if (net != &init_net) + return; + if (batadv_debugfs) { debugfs_remove_recursive(hard_iface->debug_dir); hard_iface->debug_dir = NULL; @@ -541,11 +551,15 @@ int batadv_debugfs_add_meshif(struct net_device *dev) { struct batadv_priv *bat_priv = netdev_priv(dev); struct batadv_debuginfo **bat_debug; + struct net *net = dev_net(dev); struct dentry *file; if (!batadv_debugfs) goto out; + if (net != &init_net) + return 0; + bat_priv->debug_dir = debugfs_create_dir(dev->name, batadv_debugfs); if (!bat_priv->debug_dir) goto out; @@ -582,6 +596,10 @@ out: void batadv_debugfs_del_meshif(struct net_device *dev) { struct batadv_priv *bat_priv = netdev_priv(dev); + struct net *net = dev_net(dev); + + if (net != &init_net) + return; batadv_debug_log_cleanup(bat_priv);