From patchwork Thu Jul 29 03:12:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Howard Chung X-Patchwork-Id: 488882 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=-26.3 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, 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 68337C4338F for ; Thu, 29 Jul 2021 03:13:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4B9BB60F23 for ; Thu, 29 Jul 2021 03:13:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233542AbhG2DNe (ORCPT ); Wed, 28 Jul 2021 23:13:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43364 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233297AbhG2DNd (ORCPT ); Wed, 28 Jul 2021 23:13:33 -0400 Received: from mail-qk1-x749.google.com (mail-qk1-x749.google.com [IPv6:2607:f8b0:4864:20::749]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 65C4AC061757 for ; Wed, 28 Jul 2021 20:13:29 -0700 (PDT) Received: by mail-qk1-x749.google.com with SMTP id b4-20020a3799040000b02903b899a4309cso2936099qke.14 for ; Wed, 28 Jul 2021 20:13:29 -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=tX8Do79SScMCWREDbAJxEEnKh7sMJKvr0rNJ/ZT7ZKI=; b=Sk6dyu6Z1PhMgMIvHviXqigpWaUQn62zwSxxYTJ9SZcc7UUzXVi2Awwm45u4SfVkvx pvlkVSikspIvGRuD0URJ4sV1uNEjtyCznSFRMSj9+aHj+ruOUCGdKuv9HUF1gtgL+PPP dyuHbu2v1bscJqKZRQ1oyD2GvmgFb6ShCOXSI8YkbP168emi4ztYVDmkmgN1tTxS2DWH PefGslX0Kh3kjnWil5PfoJ4EqP5sM0qUxoJrSU1M5eqo0iqZtTGVZoK2j1KKLUK5Nb2g 1w2aPkb29/ptc1FbXxYtGk5CUCPUDf3jOHQTWbGba6iBCoTVYO2W5awtL5Gt67g156Jb k+Fg== 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=tX8Do79SScMCWREDbAJxEEnKh7sMJKvr0rNJ/ZT7ZKI=; b=fWCZ7N58ruioiM9t1hvvOj/CDVlqHdSlKPUdci3dE9hUxGeLQBz32a7HT33cAvLw0T AVZSOVSb9FQcV6Wcyk88p9J/qYMglybrRynDKzfGfkHycFN6ajQpPaTKw9MXHH5bJ2Y9 KV5WkJYAvIr86Sg2a2XOH/k05z4WFsrefPS0+OEd33ArBRDO6uW1U2ptRAgWJTNwLrUy mxQMG7+rhs7FJtCT7/Po9F8Ez+zoB78ZOJBSCv7cOBd5iBS/l6XsskJsyC1zgNmtoLwc YaL6JjKMeVsjQCsfz5JaBcTmihSRm9leHkxvV/PLro0wx/QNWky6XoHGM8Mdh7nVg+36 K3WA== X-Gm-Message-State: AOAM5315Z38mxS//UrFVOOSIYyAXzkrZSsATYydwPsIAxeaWAeeJRF+9 oSWP+amS1YHiUNe5IWNJKokaaqTPGyl6moyZty6+OOngc8w+ukAu4JYW5zn+79VgB1QwA2+lxo0 77YFnUrXhbKOPlWR3S+jrlZCxgquyuRY4GEoiO/z8Waj4Wx60cSv3livK/CW9NQYWkgJcED6fO3 y10g+TxLp7lCY= X-Google-Smtp-Source: ABdhPJzT9psZFfMio3M/afqfriGWDqBTPzBUu1mQCJvLuwsHPoKdy/yQYz2N3mCG+3Z4/qHZFfbculZOicv86YNOpQ== X-Received: from howardchung-p920.tpe.corp.google.com ([2401:fa00:1:10:ff72:1420:4502:fdaf]) (user=howardchung job=sendgmr) by 2002:a05:6214:e83:: with SMTP id hf3mr3271930qvb.19.1627528408461; Wed, 28 Jul 2021 20:13:28 -0700 (PDT) Date: Thu, 29 Jul 2021 11:12:47 +0800 In-Reply-To: <20210729031258.3391756-1-howardchung@google.com> Message-Id: <20210729110956.Bluez.v4.1.Ic71b1ed97538a06d02425ba502690bdab1c5d836@changeid> Mime-Version: 1.0 References: <20210729031258.3391756-1-howardchung@google.com> X-Mailer: git-send-email 2.32.0.554.ge1b32706d8-goog Subject: [Bluez PATCH v4 01/13] core: add is_allowed property in btd_service 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 is_allowed property in btd_service. When is_allowed is set to false, calling btd_service_connect and service_accept will fail and the existing service connection gets disconnected. Reviewed-by: Miao-chen Chou --- Changes in v4: - Update commit message (admin_policy -> admin) - remove old plugins/admin_policy.c Changes in v3: - Rename plugins/admin_policy.c -> plugins/admin.c - Use device_added callback in btd_adapter_driver instead of listen for dbus - Add authorization method in profiles/health/mcap.c and block incoming connections in adapter authorization function. Changes in v2: - Move bt_uuid_hash and bt_uuid_equal functions to adapter.c. - Modify the criteria to say a device is `Affected` from any-of-uuid to any-of-auto-connect-profile. - Remove the code to remove/reprobe disallowed/allowed profiles, instead, check if the service is allowed in bt_io_accept connect_cb. - Fix a typo in emit_property_change in plugin/admin_policy.c:set_service_allowlist - Instead of using device_state_cb, utilize D-BUS client to watch device added/removed. - Add a document in doc/ src/service.c | 39 +++++++++++++++++++++++++++++++++++++++ src/service.h | 2 ++ 2 files changed, 41 insertions(+) diff --git a/src/service.c b/src/service.c index 21a52762e637..929d6c136b6d 100644 --- a/src/service.c +++ b/src/service.c @@ -41,6 +41,7 @@ struct btd_service { void *user_data; btd_service_state_t state; int err; + bool is_allowed; }; struct service_state_callback { @@ -133,6 +134,7 @@ struct btd_service *service_create(struct btd_device *device, service->device = device; /* Weak ref */ service->profile = profile; service->state = BTD_SERVICE_STATE_UNAVAILABLE; + service->is_allowed = true; return service; } @@ -186,6 +188,18 @@ int service_accept(struct btd_service *service) if (!service->profile->accept) return -ENOSYS; + if (!service->is_allowed) { + info("service %s is not allowed", + service->profile->remote_uuid); + return -ECONNABORTED; + } + + if (!service->is_allowed) { + info("service %s is not allowed", + service->profile->remote_uuid); + return -ECONNABORTED; + } + err = service->profile->accept(service); if (!err) goto done; @@ -245,6 +259,12 @@ int btd_service_connect(struct btd_service *service) return -EBUSY; } + if (!service->is_allowed) { + info("service %s is not allowed", + service->profile->remote_uuid); + return -ECONNABORTED; + } + err = profile->connect(service); if (err == 0) { change_state(service, BTD_SERVICE_STATE_CONNECTING, 0); @@ -361,6 +381,25 @@ bool btd_service_remove_state_cb(unsigned int id) return false; } +void btd_service_set_allowed(struct btd_service *service, bool allowed) +{ + if (allowed == service->is_allowed) + return; + + service->is_allowed = allowed; + + if (!allowed && (service->state == BTD_SERVICE_STATE_CONNECTING || + service->state == BTD_SERVICE_STATE_CONNECTED)) { + btd_service_disconnect(service); + return; + } +} + +bool btd_service_is_allowed(struct btd_service *service) +{ + return service->is_allowed; +} + void btd_service_connecting_complete(struct btd_service *service, int err) { if (service->state != BTD_SERVICE_STATE_DISCONNECTED && diff --git a/src/service.h b/src/service.h index 88530cc17d53..5a2a02447b24 100644 --- a/src/service.h +++ b/src/service.h @@ -51,6 +51,8 @@ int btd_service_get_error(const struct btd_service *service); unsigned int btd_service_add_state_cb(btd_service_state_cb cb, void *user_data); bool btd_service_remove_state_cb(unsigned int id); +void btd_service_set_allowed(struct btd_service *service, bool allowed); +bool btd_service_is_allowed(struct btd_service *service); /* Functions used by profile implementation */ void btd_service_connecting_complete(struct btd_service *service, int err);