From patchwork Thu Jul 29 12:27:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Howard Chung X-Patchwork-Id: 488863 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-23.5 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, UNWANTED_LANGUAGE_BODY, URIBL_BLOCKED, USER_AGENT_GIT, USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 16E51C4338F for ; Thu, 29 Jul 2021 12:28:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0078760ED4 for ; Thu, 29 Jul 2021 12:28:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237139AbhG2M24 (ORCPT ); Thu, 29 Jul 2021 08:28:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60000 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237112AbhG2M2z (ORCPT ); Thu, 29 Jul 2021 08:28:55 -0400 Received: from mail-yb1-xb49.google.com (mail-yb1-xb49.google.com [IPv6:2607:f8b0:4864:20::b49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 12C75C061765 for ; Thu, 29 Jul 2021 05:28:52 -0700 (PDT) Received: by mail-yb1-xb49.google.com with SMTP id w200-20020a25c7d10000b02905585436b530so6524993ybe.21 for ; Thu, 29 Jul 2021 05:28:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=8kh0kYIyDfN7IZp2L3gpiT2YN98Q7N2b0Om3iMdzQt4=; b=egSqmb+0d2nx4/8GqElZGbFgwzqQ3LBuISQSZiHRUrrAC50O41qcgjgdXphe1dzQoV R9iey86P05exbGuwizC+VtGLgtWNFJK16afxAMjw3I2hlwLwp9WJu1IF/d+hz7U2x3oW MGOw1YVFbjncAyBZXkPV5KrAyi6nBW/Tw4oo82OT+4qbEM7n9ZF8O87//nrWdg5IaKBe Bpzm84pOkvy49SrlxU9fHA0tXPCK4xfk1Em/Q8R4RaVVsyelaJqUChw3LEqmk15FUC9N bBdVHiqptBQa5U2v0Zwxzbu1GqF3KINVoN2gCPFx4jEV4uFJ050lYKlqcsxWrJdCiyMw e7Xw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=8kh0kYIyDfN7IZp2L3gpiT2YN98Q7N2b0Om3iMdzQt4=; b=pIa/7rHGFArWGwxu3aJ6+BZt62otLmRwzQnHUg+xxxSoBGYlMd1kePYZDybSm1D7+1 NuQuyPfMGF2cT9dVmw99Bj2gxBigUs6RigsSbLpwgFtOdgQSk/041ygG+xvpKh8AsQyp rZF9zcCibogP2QzPmPP15w+Kt/gqlbOIlRwP7VuiYWr/0LwfI10zDYhSplDSuxAMRY5V B/OTo1epBkwTqt/OwGemEovuSJ3gEdjDOkJSA7qd6XMrsIYbVpcQhcxeMLmfy81QMeWk pUEtrey5+kDUGGJtm+0iBuqYVeFaz39cDogIkAH1aP9t926JGTzIg6fdPckLuBjb32Dz NYbw== X-Gm-Message-State: AOAM532VKJz9sqiT6APwc+MEnKVuTtJoSAC+HWtZy5I2AIelk7L7T0dg x0Fxv5X1w7ojXD7ui6DjKozA+L30WXrIeROSwbocFS0ZqpZByN2uzX/BTmURULkybRUy+GGCrNe ChGxL/khPcGUaMVn5G1n8Pb+XScM1DcLIVwRA7fxkZDO06+NPmUJQY1O3bUq1eeLefzKOEohbL9 xaOfGWRcXEd+Y= X-Google-Smtp-Source: ABdhPJyg8PIpWsgB4ROWZY8z9OdVmh2Ji1KpGJn9C1kkoEm6nkfaQ7nfH6UPq/ud40kmh2onIDvwDVqSim1kO0Qk1A== X-Received: from howardchung-p920.tpe.corp.google.com ([2401:fa00:1:10:ff72:1420:4502:fdaf]) (user=howardchung job=sendgmr) by 2002:a25:aa6a:: with SMTP id s97mr6117812ybi.313.1627561731205; Thu, 29 Jul 2021 05:28:51 -0700 (PDT) Date: Thu, 29 Jul 2021 20:27:48 +0800 In-Reply-To: <20210729122751.3728885-1-howardchung@google.com> Message-Id: <20210729202648.Bluez.v6.10.I517e5199ac8019b770c7ee8c92a294ec1c752748@changeid> Mime-Version: 1.0 References: <20210729122751.3728885-1-howardchung@google.com> X-Mailer: git-send-email 2.32.0.554.ge1b32706d8-goog Subject: [Bluez PATCH v6 10/13] plugins/admin: add device callbacks From: Howard Chung To: linux-bluetooth@vger.kernel.org, luiz.dentz@gmail.com Cc: Yun-Hao Chung , Miao-chen Chou Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org From: Yun-Hao Chung This adds callbacks for device added and device removed. It is necessary for implementation of "AffectedByPolicy" property since it needs to register an interface for each device object and unregister it once the device gets removed. Reviewed-by: Miao-chen Chou --- The following test steps were performed: 1. start discovery using UI 2. verify device_data were added by checking system log 3. stop discovery 4. verify device_data were removed after a few seconds by checking system log (no changes since v1) plugins/admin.c | 78 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) diff --git a/plugins/admin.c b/plugins/admin.c index d89a77c8a123..37dae77ac448 100644 --- a/plugins/admin.c +++ b/plugins/admin.c @@ -20,6 +20,7 @@ #include "src/adapter.h" #include "src/dbus-common.h" +#include "src/device.h" #include "src/error.h" #include "src/log.h" #include "src/plugin.h" @@ -29,7 +30,11 @@ #define ADMIN_POLICY_SET_INTERFACE "org.bluez.AdminPolicySet1" #define ADMIN_POLICY_STATUS_INTERFACE "org.bluez.AdminPolicyStatus1" +#define DBUS_BLUEZ_SERVICE "org.bluez" +#define BTD_DEVICE_INTERFACE "org.bluez.Device1" + static DBusConnection *dbus_conn; +static struct queue *devices; /* List of struct device_data objects */ /* |policy_data| has the same life cycle as btd_adapter */ static struct btd_admin_policy { @@ -38,6 +43,11 @@ static struct btd_admin_policy { struct queue *service_allowlist; } *policy_data = NULL; +struct device_data { + struct btd_device *device; + char *path; +}; + static struct btd_admin_policy *admin_policy_new(struct btd_adapter *adapter) { struct btd_admin_policy *admin_policy = NULL; @@ -203,6 +213,37 @@ static const GDBusPropertyTable admin_policy_adapter_properties[] = { { } }; +static bool device_data_match(const void *a, const void *b) +{ + const struct device_data *data = a; + const struct btd_device *dev = b; + + if (!data) { + error("Unexpected NULL device_data"); + return false; + } + + return data->device == dev; +} + +static void free_device_data(void *data) +{ + struct device_data *device_data = data; + + g_free(device_data->path); + g_free(device_data); +} + +static void remove_device_data(void *data) +{ + struct device_data *device_data = data; + + DBG("device_data for %s removing", device_data->path); + + queue_remove(devices, device_data); + free_device_data(device_data); +} + static int admin_policy_adapter_probe(struct btd_adapter *adapter) { const char *adapter_path; @@ -250,10 +291,45 @@ static int admin_policy_adapter_probe(struct btd_adapter *adapter) return 0; } +static void admin_policy_device_added(struct btd_adapter *adapter, + struct btd_device *device) +{ + struct device_data *data; + + if (queue_find(devices, device_data_match, device)) + return; + + data = g_new0(struct device_data, 1); + if (!data) { + btd_error(btd_adapter_get_index(adapter), + "Failed to allocate memory for device_data"); + return; + } + + data->device = device; + data->path = g_strdup(device_get_path(device)); + queue_push_tail(devices, data); + + DBG("device_data for %s added", data->path); +} + +static void admin_policy_device_removed(struct btd_adapter *adapter, + struct btd_device *device) +{ + struct device_data *data; + + data = queue_find(devices, device_data_match, device); + + if (data) + remove_device_data(data); +} + static struct btd_adapter_driver admin_policy_driver = { .name = "admin_policy", .probe = admin_policy_adapter_probe, .resume = NULL, + .device_added = admin_policy_device_added, + .device_removed = admin_policy_device_removed }; static int admin_init(void) @@ -261,6 +337,7 @@ static int admin_init(void) DBG(""); dbus_conn = btd_get_dbus_connection(); + devices = queue_new(); return btd_register_adapter_driver(&admin_policy_driver); } @@ -270,6 +347,7 @@ static void admin_exit(void) DBG(""); btd_unregister_adapter_driver(&admin_policy_driver); + queue_destroy(devices, free_device_data); if (policy_data) admin_policy_free(policy_data);