From mboxrd@z Thu Jan 1 00:00:00 1970 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=-11.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 A0011C4361B for ; Fri, 11 Dec 2020 19:49:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 732DE23ED2 for ; Fri, 11 Dec 2020 19:49:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2392780AbgLKSM6 (ORCPT ); Fri, 11 Dec 2020 13:12:58 -0500 Received: from mail.kernel.org ([198.145.29.99]:44894 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2392763AbgLKSMy (ORCPT ); Fri, 11 Dec 2020 13:12:54 -0500 Date: Fri, 11 Dec 2020 10:12:12 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1607710334; bh=mHRhHK/uPbQfjsIdHi95Bh/ntFtEmWkWCTpNoAuwNks=; h=From:To:Cc:Subject:References:In-Reply-To:From; b=ba/F2KmiBuXm1Fa5WG+ONGi+feUdILjz3bwClOatJSHb/nxSffb7iVWbQjGQxhKJz hdXOxE0hvAHPzJVv9epsIPEW67tryUUuGz+VEcM6W3ohp0ceZ+Lqxs9KKbGX9wYILY hAxVI1TFoQq8pm7mWsoMCrkintqFcnNKVeJvovCBGol6uYP55DMRaimCzWjD5b9DTE IOEYIP9UC2ESaf6+gHaihtIu2OF2acSex7q+abe89VoZshfVl00zNpZjmyWn01OZhc OQUQJnPvRHPsjW0MNP8fttuejAGzkkhFZ20K2sQgb0jjNnLQhiSCrM/wDGsFq9ODtV pVBIZLy3YElyA== From: Eric Biggers To: Chirantan Ekbote Cc: Miklos Szeredi , linux-fsdevel@vger.kernel.org, Dylan Reid , Suleiman Souhlal , fuse-devel@lists.sourceforge.net, linux-fscrypt@vger.kernel.org Subject: Re: [PATCH v2 2/2] fuse: Support FS_IOC_GET_ENCRYPTION_POLICY_EX Message-ID: References: <20201207040303.906100-1-chirantan@chromium.org> <20201208093808.1572227-1-chirantan@chromium.org> <20201208093808.1572227-3-chirantan@chromium.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201208093808.1572227-3-chirantan@chromium.org> Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On Tue, Dec 08, 2020 at 06:38:08PM +0900, Chirantan Ekbote wrote: > Chrome OS would like to support this ioctl when passed through the fuse > driver. However since it is dynamically sized, we can't rely on the > length encoded in the command. Instead check the `policy_size` field of > the user provided parameter to get the max length of the data returned > by the server. > > Signed-off-by: Chirantan Ekbote Reviewed-by: Eric Biggers