From patchwork Wed Dec 22 15:57:25 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 12691783 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5BB0AC433F5 for ; Wed, 22 Dec 2021 15:57:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343795AbhLVP5r (ORCPT ); Wed, 22 Dec 2021 10:57:47 -0500 Received: from relay3-d.mail.gandi.net ([217.70.183.195]:49975 "EHLO relay3-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343765AbhLVP5r (ORCPT ); Wed, 22 Dec 2021 10:57:47 -0500 Received: (Authenticated sender: miquel.raynal@bootlin.com) by relay3-d.mail.gandi.net (Postfix) with ESMTPSA id 6569660013; Wed, 22 Dec 2021 15:57:44 +0000 (UTC) From: Miquel Raynal To: "David S. Miller" , Jakub Kicinski , netdev@vger.kernel.org, Alexander Aring , Stefan Schmidt , linux-wpan@vger.kernel.org Cc: David Girault , Romuald Despres , Frederic Blain , Thomas Petazzoni , , Miquel Raynal Subject: [net-next 00/18] IEEE 802.15.4 passive scan support Date: Wed, 22 Dec 2021 16:57:25 +0100 Message-Id: <20211222155743.256280-1-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wpan@vger.kernel.org Hello, Here is a series attempting to bring support for passive scans in the IEEE 802.15.4 stack. A second series follows in order to align the tooling with these changes, bringing support for a number of new features such as: * Passively sending (or stopping) beacons. So far only intervals ranging from 0 to 14 are valid. Bigger values would request the PAN coordinator to answer BEACONS_REQ (active scans), this is not supported yet. # iwpan dev wpan0 beacons send interval 2 # iwpan dev wpan0 beacons stop * Scanning all the channels or only a subset: # iwpan dev wpan1 scan type passive duration 3 * If a beacon is received during this operation the internal PAN list is updated and can be dumped or flushed with: # iwpan dev wpan1 pans dump PAN 0xffff (on wpan1) coordinator 0x2efefdd4cdbf9330 page 0 channel 13 superframe spec. 0xcf22 LQI 0 seen 7156ms ago # iwpan dev wpan1 pans flush * It is also possible to monitor the events with: # iwpan event * As well as triggering a non blocking scan: # iwpan dev wpan1 scan trigger type passive duration 3 # iwpan dev wpan1 scan done # iwpan dev wpan1 scan abort The PAN list gets automatically updated by dropping the expired PANs each time the user requests access to the list. Internally, both requests (scan/beacons) are handled periodically by delayed workqueues. So far the only technical point that is missing in this series is the possibility to grab a reference over the module driving the net device in order to prevent module unloading during a scan or when the beacons work is ongoing. Finally, this series is a deep reshuffle of David Girault's original work, hence the fact that he is almost systematically credited, either by being the only author when I created the patches based on his changes with almost no modification, or with a Co-developped-by tag whenever the final code base is significantly different than his first proposal while still being greatly inspired from it. Cheers, Miquèl David Girault (5): net: ieee802154: Move IEEE 802.15.4 Kconfig main entry net: mac802154: Include the softMAC stack inside the IEEE 802.15.4 menu net: ieee802154: Move the address structure earlier net: ieee802154: Add a kernel doc header to the ieee802154_addr structure net: ieee802154: Trace the registration of new PANs Miquel Raynal (13): ieee802154: hwsim: Ensure proper channel selection at probe time ieee802154: hwsim: Provide a symbol duration net: ieee802154: Return meaningful error codes from the netlink helpers net: ieee802154: Add support for internal PAN management net: ieee802154: Define a beacon frame header net: ieee802154: Define frame types net: ieee802154: Add support for scanning requests net: mac802154: Handle scan requests net: mac802154: Inform device drivers about the scanning operation net: ieee802154: Full PAN management net: ieee802154: Add support for beacon requests net: mac802154: Handle beacons requests net: mac802154: Let drivers provide their own beacons implementation drivers/net/ieee802154/mac802154_hwsim.c | 77 +++- include/linux/ieee802154.h | 6 + include/net/cfg802154.h | 107 +++++- include/net/ieee802154_netdev.h | 71 ++++ include/net/mac802154.h | 40 ++ include/net/nl802154.h | 95 +++++ net/Kconfig | 3 +- net/ieee802154/Kconfig | 1 + net/ieee802154/Makefile | 2 +- net/ieee802154/core.c | 2 + net/ieee802154/core.h | 23 ++ net/ieee802154/header_ops.c | 29 ++ net/ieee802154/nl802154.c | 466 ++++++++++++++++++++++- net/ieee802154/nl802154.h | 4 + net/ieee802154/pan.c | 211 ++++++++++ net/ieee802154/rdev-ops.h | 52 +++ net/ieee802154/trace.h | 86 +++++ net/mac802154/Makefile | 2 +- net/mac802154/cfg.c | 76 ++++ net/mac802154/driver-ops.h | 66 ++++ net/mac802154/ieee802154_i.h | 28 ++ net/mac802154/main.c | 4 + net/mac802154/rx.c | 10 +- net/mac802154/scan.c | 374 ++++++++++++++++++ net/mac802154/trace.h | 49 +++ net/mac802154/util.c | 26 ++ 26 files changed, 1889 insertions(+), 21 deletions(-) create mode 100644 net/ieee802154/pan.c create mode 100644 net/mac802154/scan.c