From patchwork Fri Aug 26 17:00:31 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Prestwood X-Patchwork-Id: 12956315 X-Patchwork-Delegate: johannes@sipsolutions.net 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 EB040ECAAA6 for ; Fri, 26 Aug 2022 17:00:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235364AbiHZRAu (ORCPT ); Fri, 26 Aug 2022 13:00:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44672 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234351AbiHZRAp (ORCPT ); Fri, 26 Aug 2022 13:00:45 -0400 Received: from mail-pj1-x102a.google.com (mail-pj1-x102a.google.com [IPv6:2607:f8b0:4864:20::102a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E8A71BC80E for ; Fri, 26 Aug 2022 10:00:42 -0700 (PDT) Received: by mail-pj1-x102a.google.com with SMTP id m10-20020a17090a730a00b001fa986fd8eeso8659264pjk.0 for ; Fri, 26 Aug 2022 10:00:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc; bh=cAmRLOTm/YIdX7Lx7jAm2pYzm8lrQiOwQoZv0peuAxs=; b=FvqzwxrhmgT+ZlSeOB5ijNu8CUB2D1AhBZkmXY3N6KRGs6+3s38HWfS6Tj9ZKBrl5F J+8BHwkKa9i2u6/1whLOMlSe/sJEcb/fYlUOvAsUMIvaC5sdbyYLN4GWHk+XeYzuABWz DzlxaPDKMqjhyp+pWEZKguEVA82EqhSQF9+Z/xUhZl+W37YjWLLcoJy9/Q2vgt217Mvd yYPxSo+dRF2gSdKeOwlo4E016hKkoG8kNIZLSNxGy8FUF+wPMrRzcyz8nFQDcuCe4G2L uTDDzFj/KvxhlQBC64INrMM2QGlGhqVwlxUKT2shrGr8eymlGHf7QW692g7tDy9BDB30 HMQQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc; bh=cAmRLOTm/YIdX7Lx7jAm2pYzm8lrQiOwQoZv0peuAxs=; b=YWZsBd1Qbej/H/sjC9OSLG6l9/en2kJy/bvvO/5O3RDrai58O2Cbtd3NPO0aBXuQmp 8GcDwwNS8xLXOVmNXNzS5hO+D+9nSH5cSsO/y/p8kdvX4+vm+iIRhtmJ+j4h101gm7xe IEkMO71PlmLVRpljAx/VPqphxok1fMf8QydMq+EqE8Lqs5qhb5GvxMqXVAq8enHPT6d6 kjosr+Sr4mSzXbCN//Ecuc5aeCIJif+xfHYSwWRArNTViDrpof/3vGTVVDr90Xpof4Uz alTKz038d04n1bfM1mStMlvPz/mzuRTERxTMFl+6Ga3k3Wr5748UAq/atRZpNrsFlbwu H8qA== X-Gm-Message-State: ACgBeo0so9XbWjwXjFOg7bmrnV1cAhzteLu0PJ9xl9T+zr3d91YrhxM3 o/f0o+4OL/IZ5AuO4QYZzT0zf4fCS2Y= X-Google-Smtp-Source: AA6agR7Qwy36zRAvmlaEYra9VRjLgAM1zeVj+6LQl92FD91gH4Y2Gx3bR22h6M7zD7Ft2Jw5pV9Fxg== X-Received: by 2002:a17:902:c102:b0:172:ce4b:870c with SMTP id 2-20020a170902c10200b00172ce4b870cmr4385549pli.155.1661533242130; Fri, 26 Aug 2022 10:00:42 -0700 (PDT) Received: from jprestwo-xps.none ([50.39.168.145]) by smtp.gmail.com with ESMTPSA id y9-20020a634949000000b0041d322b3bf6sm1685034pgk.77.2022.08.26.10.00.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 26 Aug 2022 10:00:41 -0700 (PDT) From: James Prestwood To: linux-wireless@vger.kernel.org Cc: James Prestwood Subject: [PATCH v3 1/2] include: nl80211: Add POWERED_ADDR_CHANGE feature Date: Fri, 26 Aug 2022 10:00:31 -0700 Message-Id: <20220826170032.2860883-2-prestwoj@gmail.com> X-Mailer: git-send-email 2.34.3 In-Reply-To: <20220826170032.2860883-1-prestwoj@gmail.com> References: <20220826170032.2860883-1-prestwoj@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Add a new extended feature bit signifying that the wireless hardware supports changing the MAC address while the underlying net_device is powered. Note that this has a different meaning from IFF_LIVE_ADDR_CHANGE as additional restrictions might be imposed by the hardware, such as: - No connection is active on this interface, carrier is off - No scan is in progress - No offchannel operations are in progress Signed-off-by: James Prestwood --- include/uapi/linux/nl80211.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index d9490e3062a7..57ead424a0c3 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -6174,6 +6174,14 @@ enum nl80211_feature_flags { * @NL80211_EXT_FEATURE_RADAR_BACKGROUND: Device supports background radar/CAC * detection. * + * @NL80211_EXT_FEATURE_POWERED_ADDR_CHANGE: Device can perform a MAC address + * change without having to bring the underlying network device down + * first. For example, in station mode this can be used to vary the + * origin MAC address prior to a connection to a new AP for privacy + * or other reasons. Note that certain driver specific restrictions + * might apply, e.g. no scans in progress, no offchannel operations + * in progress, and no active connections. + * * @NUM_NL80211_EXT_FEATURES: number of extended features. * @MAX_NL80211_EXT_FEATURES: highest extended feature index. */ @@ -6241,6 +6249,7 @@ enum nl80211_ext_feature_index { NL80211_EXT_FEATURE_BSS_COLOR, NL80211_EXT_FEATURE_FILS_CRYPTO_OFFLOAD, NL80211_EXT_FEATURE_RADAR_BACKGROUND, + NL80211_EXT_FEATURE_POWERED_ADDR_CHANGE, /* add new features before the definition below */ NUM_NL80211_EXT_FEATURES,