From patchwork Wed Sep 11 01:09:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hongbo Li X-Patchwork-Id: 13799582 Received: from szxga07-in.huawei.com (szxga07-in.huawei.com [45.249.212.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BB4D5179BD for ; Wed, 11 Sep 2024 01:00:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.35 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726016431; cv=none; b=N9TYMN1KIuiyvfTM8YeojGoKcsCJF0QIfRmBP/7Cc7dx2et7yKlMEy5bca+kVrRbatgh3Qdki2JPPqKl7oxYKFVM5zQFYx77mUW8xfFzNNy8hbD7IGUs/OfhA1wiD52n6LFdWRQmM9d6xwx3givhOO3zaYdwmUJ0EXKyJjjO+mI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726016431; c=relaxed/simple; bh=ppKSjzLu4SWohLqyVTlCMnOvb6pLIC0AwZu0KgiLk8A=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=ElTbeoFyZaBOcHhkGutjGjyQia/dcTahuDcvdus2y0djXgqDDhJIvgbaj7PGQQID6Bv3P5MYbAu+KXvAX+A3A+zFf4zijqIYtQGaI0D2iI9AGpAE8gzgDR4IKYnI+dz9TTCi9SNT/pF7GOWL2eFAb/p0YJn7GPN1p6yd8/qAu14= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.35 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.162.112]) by szxga07-in.huawei.com (SkyGuard) with ESMTP id 4X3Mg1757Tz1SB6w; Wed, 11 Sep 2024 08:59:57 +0800 (CST) Received: from dggpeml500022.china.huawei.com (unknown [7.185.36.66]) by mail.maildlp.com (Postfix) with ESMTPS id 640111400DA; Wed, 11 Sep 2024 09:00:27 +0800 (CST) Received: from huawei.com (10.90.53.73) by dggpeml500022.china.huawei.com (7.185.36.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Wed, 11 Sep 2024 09:00:27 +0800 From: Hongbo Li To: , , , CC: , Subject: [PATCH -next v3 06/10] coccinelle: Add rules to find str_read_write() replacements Date: Wed, 11 Sep 2024 09:09:23 +0800 Message-ID: <20240911010927.741343-7-lihongbo22@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240911010927.741343-1-lihongbo22@huawei.com> References: <20240911010927.741343-1-lihongbo22@huawei.com> Precedence: bulk X-Mailing-List: linux-hardening@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpeml500022.china.huawei.com (7.185.36.66) As other rules done, we add rules for str_read_write() to check the relative opportunities. Signed-off-by: Hongbo Li --- scripts/coccinelle/api/string_choices.cocci | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/scripts/coccinelle/api/string_choices.cocci b/scripts/coccinelle/api/string_choices.cocci index bb6b851ee2aa..29c507d86ffd 100644 --- a/scripts/coccinelle/api/string_choices.cocci +++ b/scripts/coccinelle/api/string_choices.cocci @@ -241,3 +241,22 @@ e << str_enabled_disabled_r.E; @@ coccilib.report.print_report(p[0], "opportunity for str_enabled_disabled(%s)" % e) + +@str_read_write depends on patch@ +expression E; +@@ +- ((E) ? "read" : "write") ++ str_read_write(E) + +@str_read_write_r depends on !patch exists@ +expression E; +position P; +@@ +* ((E@P) ? "read" : "write") + +@script:python depends on report@ +p << str_read_write_r.P; +e << str_read_write_r.E; +@@ + +coccilib.report.print_report(p[0], "opportunity for str_read_write(%s)" % e)