From patchwork Thu Oct 1 23:03:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Winkler X-Patchwork-Id: 11812593 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7159292C for ; Thu, 1 Oct 2020 23:04:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 547BB207DE for ; Thu, 1 Oct 2020 23:04:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="I7eNU7YL" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387436AbgJAXES (ORCPT ); Thu, 1 Oct 2020 19:04:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52738 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1733233AbgJAXEM (ORCPT ); Thu, 1 Oct 2020 19:04:12 -0400 Received: from mail-yb1-xb4a.google.com (mail-yb1-xb4a.google.com [IPv6:2607:f8b0:4864:20::b4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BF868C0613D0 for ; Thu, 1 Oct 2020 16:04:10 -0700 (PDT) Received: by mail-yb1-xb4a.google.com with SMTP id u35so523247ybd.13 for ; Thu, 01 Oct 2020 16:04:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:in-reply-to:message-id:mime-version:references:subject :from:to:cc; bh=hvILWQxB3TwRcPBpncrYp0H71P0VFsr065oJCLdsVjA=; b=I7eNU7YL/FdU036qIcfEENrPxS2eiy4mD8lDH5mI4rfIR0M/wAzXW6SGv4ZQ1xFV0L vykuRLIy5CyT9zmr/zi/jiDHvxrolJRjSOpyq+X5dL4yCXglRV0nUbfnJhFaCvVm0YPK F1GPuVcGZEzikirjrHVGWnWVRLGcyav2yJl0M5bsSmtywJf8CUC5rxtnYjLxy1zo8hzN krIkyZamxOVkZviq+JGiluUBO4FMNvirlMbQLM8/AKf/8/unJkgcj9ehE7S6GkU/3t+z pmK4k8Z8LEwyEj98WeIQBbN57aZYTSrqR5LUek0LBNAX/j76gK+Xaz2PneSnsO9+c4Qr X28A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=hvILWQxB3TwRcPBpncrYp0H71P0VFsr065oJCLdsVjA=; b=PsjVKMz1bze+nvzh1/77c1c5xjvsUQrmx0Lnj6KNGT4fueJtNVpbQiNeD2RuBLZwAD s5CKjbzFeExYF21tmi+U3Os8/UhqUVDOl4Nus5Sze8gqKEcNp0KSKPJw1mLf1fMrJi6E WU9osqdi94vhOaHWQYTMJ6FvY/RUMLmfVkTwtWmD/brZIlODdp4NpQvNlO9yrRZH7oaq 8Eh0FLhjJBHhMr8ze63+3wecLr2dQlK9denG1gCcMZhZQIDqSAhQP5GhN3llfYtUo2dK krSKh65CN/k4SDWhZBWziNqy95VszphbYXm1lMdPWfpky2UMoBBipv/3NZheyAIxCtBM 9zlg== X-Gm-Message-State: AOAM532gV4eZADFT2AcEgQpcI7K2Xq/b7JSBetrHfm/RNCqN2ldTU5zK aN3Wy/zYpnAno60+wsUsv1AnrLwHueK2cYm0IIse X-Google-Smtp-Source: ABdhPJwGyLhPvbj95Q6LhW6QICHshVpACO0Zm/35uidkeHKzFyyJDa7eMpYWuBJBdtYQ8HT3qUXD4QE486VSbPhZWxRT Sender: "danielwinkler via sendgmr" X-Received: from danielwinkler-linux.mtv.corp.google.com ([2620:15c:202:201:f693:9fff:fef4:4e59]) (user=danielwinkler job=sendgmr) by 2002:a25:6887:: with SMTP id d129mr14417906ybc.434.1601593449952; Thu, 01 Oct 2020 16:04:09 -0700 (PDT) Date: Thu, 1 Oct 2020 16:03:59 -0700 In-Reply-To: <20201001230403.2445035-1-danielwinkler@google.com> Message-Id: <20201001160305.v4.1.I5f4fa6a76fe81f977f78f06b7e68ff1c76c6bddf@changeid> Mime-Version: 1.0 References: <20201001230403.2445035-1-danielwinkler@google.com> X-Mailer: git-send-email 2.28.0.709.gb0816b6eb0-goog Subject: [PATCH v4 1/5] Bluetooth: Add helper to set adv data From: Daniel Winkler To: marcel@holtmann.org Cc: linux-bluetooth@vger.kernel.org, chromeos-bluetooth-upstreaming@chromium.org, Daniel Winkler , Sonny Sasaka , "David S. Miller" , Jakub Kicinski , Johan Hedberg , linux-kernel@vger.kernel.org, netdev@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org We wish to handle advertising data separately from advertising parameters in our new MGMT requests. This change adds a helper that allows the advertising data and scan response to be updated for an existing advertising instance. Reviewed-by: Sonny Sasaka Signed-off-by: Daniel Winkler --- Changes in v4: None Changes in v3: None Changes in v2: None include/net/bluetooth/hci_core.h | 3 +++ net/bluetooth/hci_core.c | 31 +++++++++++++++++++++++++++++++ 2 files changed, 34 insertions(+) diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 9873e1c8cd163b..300b3572d479e1 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -1291,6 +1291,9 @@ int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags, u16 adv_data_len, u8 *adv_data, u16 scan_rsp_len, u8 *scan_rsp_data, u16 timeout, u16 duration); +int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance, + u16 adv_data_len, u8 *adv_data, + u16 scan_rsp_len, u8 *scan_rsp_data); int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance); void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired); diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 8a2645a8330137..3f73f147826409 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -3005,6 +3005,37 @@ int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags, return 0; } +/* This function requires the caller holds hdev->lock */ +int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance, + u16 adv_data_len, u8 *adv_data, + u16 scan_rsp_len, u8 *scan_rsp_data) +{ + struct adv_info *adv_instance; + + adv_instance = hci_find_adv_instance(hdev, instance); + + /* If advertisement doesn't exist, we can't modify its data */ + if (!adv_instance) + return -ENOENT; + + if (adv_data_len) { + memset(adv_instance->adv_data, 0, + sizeof(adv_instance->adv_data)); + memcpy(adv_instance->adv_data, adv_data, adv_data_len); + adv_instance->adv_data_len = adv_data_len; + } + + if (scan_rsp_len) { + memset(adv_instance->scan_rsp_data, 0, + sizeof(adv_instance->scan_rsp_data)); + memcpy(adv_instance->scan_rsp_data, + scan_rsp_data, scan_rsp_len); + adv_instance->scan_rsp_len = scan_rsp_len; + } + + return 0; +} + /* This function requires the caller holds hdev->lock */ void hci_adv_monitors_clear(struct hci_dev *hdev) {