From patchwork Mon May 23 19:22:07 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Aring X-Patchwork-Id: 9132299 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 459F86075F for ; Mon, 23 May 2016 19:24:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3C45B2824D for ; Mon, 23 May 2016 19:24:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2FBDA2824F; Mon, 23 May 2016 19:24:29 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A70182824D for ; Mon, 23 May 2016 19:24:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753321AbcEWTXJ (ORCPT ); Mon, 23 May 2016 15:23:09 -0400 Received: from metis.ext.4.pengutronix.de ([92.198.50.35]:55747 "EHLO metis.ext.4.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753197AbcEWTXG (ORCPT ); Mon, 23 May 2016 15:23:06 -0400 Received: from gallifrey.ext.pengutronix.de ([2001:67c:670:201:5054:ff:fe8d:eefb] helo=omega.localdomain) by metis.ext.pengutronix.de with esmtp (Exim 4.80) (envelope-from ) id 1b4vRQ-00022o-Ty; Mon, 23 May 2016 21:23:04 +0200 From: Alexander Aring To: linux-wpan@vger.kernel.org Cc: kernel@pengutronix.de, marcel@holtmann.org, jukka.rissanen@linux.intel.com, hannes@stressinduktion.org, stefan@osg.samsung.com, mcr@sandelman.ca, werner@almesberger.net, linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, Alexander Aring Subject: [RFC 11/12] 6lowpan: add support for getting short address Date: Mon, 23 May 2016 21:22:07 +0200 Message-Id: <1464031328-17524-12-git-send-email-aar@pengutronix.de> X-Mailer: git-send-email 2.8.2 In-Reply-To: <1464031328-17524-1-git-send-email-aar@pengutronix.de> References: <1464031328-17524-1-git-send-email-aar@pengutronix.de> X-SA-Exim-Connect-IP: 2001:67c:670:201:5054:ff:fe8d:eefb X-SA-Exim-Mail-From: aar@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-wpan@vger.kernel.org Sender: linux-wpan-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wpan@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP In case of sending RA messages we need some way to get the short address from an 802.15.4 6LoWPAN interface. This patch will add a temporary debugfs entry for experimental userspace api. Signed-off-by: Alexander Aring Reviewed-by: Stefan Schmidt --- net/6lowpan/debugfs.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/net/6lowpan/debugfs.c b/net/6lowpan/debugfs.c index acbaa3d..638ae59 100644 --- a/net/6lowpan/debugfs.c +++ b/net/6lowpan/debugfs.c @@ -245,6 +245,37 @@ static const struct file_operations lowpan_context_fops = { .release = single_release, }; +static int lowpan_short_addr_get(void *data, u64 *val) +{ + struct wpan_dev *wdev = data; + + rtnl_lock(); + *val = le16_to_cpu(wdev->short_addr); + rtnl_unlock(); + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(lowpan_short_addr_fops, lowpan_short_addr_get, + NULL, "0x%04llx\n"); + +static int lowpan_dev_debugfs_802154_init(const struct net_device *dev, + struct lowpan_dev *ldev) +{ + struct dentry *dentry; + + if (!lowpan_is_ll(dev, LOWPAN_LLTYPE_IEEE802154)) + return 0; + + dentry = debugfs_create_file("short_addr", 0444, ldev->iface_debugfs, + lowpan_802154_dev(dev)->wdev->ieee802154_ptr, + &lowpan_short_addr_fops); + if (!dentry) + return -EINVAL; + + return 0; +} + int lowpan_dev_debugfs_init(struct net_device *dev) { struct lowpan_dev *ldev = lowpan_dev(dev); @@ -272,6 +303,10 @@ int lowpan_dev_debugfs_init(struct net_device *dev) goto remove_root; } + ret = lowpan_dev_debugfs_802154_init(dev, ldev); + if (ret < 0) + goto remove_root; + return 0; remove_root: