From patchwork Thu Nov 25 07:06:27 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Archie Pusaka X-Patchwork-Id: 12638525 X-Patchwork-Delegate: luiz.dentz@gmail.com 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 D1951C433EF for ; Thu, 25 Nov 2021 07:08:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353140AbhKYHMI (ORCPT ); Thu, 25 Nov 2021 02:12:08 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46342 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1353171AbhKYHKH (ORCPT ); Thu, 25 Nov 2021 02:10:07 -0500 Received: from mail-qk1-x74a.google.com (mail-qk1-x74a.google.com [IPv6:2607:f8b0:4864:20::74a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9AE37C061756 for ; Wed, 24 Nov 2021 23:06:56 -0800 (PST) Received: by mail-qk1-x74a.google.com with SMTP id az44-20020a05620a172c00b0046a828b4684so5301050qkb.22 for ; Wed, 24 Nov 2021 23:06:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=INm7pXDA0xyOS7X6mzWYKK1ZwjPVf1vUklVBZrsNc+k=; b=R82DHbFP06+V5YN3Esyqr6BcOyWB/UIEfyijXnz1vHpDKH3byYfRrHaEf6Ec2AzIeO CmoFr0HiLSOHWFkDBUmuXH8AU5WdXVGG7vJUXwadQVskF76nnpVTPDkfNaSPPMmSWBZ1 qKrlo/l4hfn6cTk/4B6iZbSYxZKz3WkukO91GGzPBNmX6pWexcxufuOlmKZnk3bU7Oip GVW9igHfoFzyg4jR7BsrS0eNBa1X1dDCno3XKySMSBURS1zdra5JWqvARNM0pJBKcvUv H3o7lssoPuk/Wtlbhyt1yBy23VFgGjmrJHH9ctaEMnVFWX5pKI+xH3NM24We8mOzyhtb YE4A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=INm7pXDA0xyOS7X6mzWYKK1ZwjPVf1vUklVBZrsNc+k=; b=joULibcu9MIpSu5Sh4sX+5QIyKB1OL9L7sNDQ962tP/rLEUKIkcE70i9uwHfN5KQlv cVy4Y3b14nNYudTA8g08aDus5RLCbbsGy1sYCqCG2eQjsDjoMsR3H4dQBYP6Jr/t5I+I 76OTUbv1PgRS03YJqMRt9aCyGMLQTL2BPqZeGjwnP2+6TpEZhoNNUZ/rkRwU6NGsUKCa j5MjEXY753Fqe6rzMkmeDqqpwBwo8F7gdrMTRWaJL1dK9UkKgz1pJrMROQhHMEQOalwo 7kMit+nO2bfY5vgacSiM67NXgEVS6GyIQ53U1xZv5SJ5tERLSFUdcl9q8+192feqoIkJ JMOw== X-Gm-Message-State: AOAM533tOxtezPqeRDSeq2b2wBVnnzyO8eKBmVqivh6bcsJoso26OVVY 58Pjn/2/t/jwej658z0yJ1g28WHirzvR/UfhW4uRHtRmOKCUy0bIv4jmRXM2zaoso8b7dhkDqf+ ytK94SZhbAsc30etL5JRvc9zOP3DWcbcnbPTHX0pc8OxetvGhcwm8FhomnTIDseJWSu7FxPg1XR WT X-Google-Smtp-Source: ABdhPJzTt3iUw9VBzajdS/omoIZ67rTg8S70JKJs38eoSuBxkexh9H5QuJjcBX2ErdeSM0lQ5uAgkOI4EyLw X-Received: from apusaka-p920.tpe.corp.google.com ([2401:fa00:1:10:a5d9:6769:9abb:6b2]) (user=apusaka job=sendgmr) by 2002:a25:cccf:: with SMTP id l198mr4048148ybf.238.1637824015751; Wed, 24 Nov 2021 23:06:55 -0800 (PST) Date: Thu, 25 Nov 2021 15:06:27 +0800 In-Reply-To: <20211125150558.Bluez.v4.1.I78857808e0b20c6e4dd934b174d3f1106fe3402d@changeid> Message-Id: <20211125150558.Bluez.v4.5.I29367ca288fc8f4fcc3b4063425b791501c6534c@changeid> Mime-Version: 1.0 References: <20211125150558.Bluez.v4.1.I78857808e0b20c6e4dd934b174d3f1106fe3402d@changeid> X-Mailer: git-send-email 2.34.0.rc2.393.gf8c9666880-goog Subject: [Bluez PATCH v4 5/5] doc: Add Name Request Fail flag in device found event From: Archie Pusaka To: linux-bluetooth , Luiz Augusto von Dentz , Marcel Holtmann Cc: CrosBT Upstreaming , Archie Pusaka Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org From: Archie Pusaka Userspace should use this new flag to decide whether to do the remote name resolving or not. --- Changes in v4: * Add information about NameResolving cache Changes in v3: * Update the flag name to be more inlined with the spec. Changes in v2: * Update docs to reflect not sending DONT_CARE flag behavior. doc/mgmt-api.txt | 7 +++++++ doc/settings-storage.txt | 11 ++++++++++- 2 files changed, 17 insertions(+), 1 deletion(-) diff --git a/doc/mgmt-api.txt b/doc/mgmt-api.txt index 1ab513eb17..ebe56afa44 100644 --- a/doc/mgmt-api.txt +++ b/doc/mgmt-api.txt @@ -4090,6 +4090,7 @@ Device Connected Event 1 Legacy Pairing 2 Reserved (not in use) 3 Initiated Connection + 4 Reserved (not in use) Device Disconnected Event @@ -4264,6 +4265,7 @@ Device Found Event 1 Legacy Pairing 2 Not Connectable 3 Reserved (not in use) + 4 Name Request Failed For the RSSI field a value of 127 indicates that the RSSI is not available. That can happen with Bluetooth 1.1 and earlier @@ -4286,6 +4288,11 @@ Device Found Event accept any connections. This can be indicated by Low Energy devices that are in broadcaster role. + The Name Request Failed flag indicates that name resolving + procedure has ended with failure for this device. The user space + should use this information to determine when is a good time to + retry the name resolving procedure. + Discovering Event ================= diff --git a/doc/settings-storage.txt b/doc/settings-storage.txt index 3c637c3521..26584f2015 100644 --- a/doc/settings-storage.txt +++ b/doc/settings-storage.txt @@ -179,7 +179,7 @@ Cache directory file format ============================ Each file, named by remote device address, may includes multiple groups -(General, ServiceRecords, Attributes, Endpoints). +(General, ServiceRecords, Attributes, Endpoints, NameResolving). In ServiceRecords, SDP records are stored using their handle as key (hexadecimal format). @@ -193,6 +193,9 @@ In "Endpoints" group A2DP remote endpoints are stored using the seid as key an entry which key is set to "LastUsed" which represented the last endpoint used. +In "NameResolving", information regarding remote name resolving are stored to +prevent wasting time resolving name for unresponsive devices. + [General] group contains: Name String Remote device friendly name @@ -247,6 +250,12 @@ Sample Attributes section: local and remote seids as hexadecimal encoded string. +[NameResolving] group contains: + + FailedTime Integer The last time we failed to complete name + resolving procedure, measured from an + arbitrary, fixed point in the past. + Info file format ================