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=-9.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 5DC08C433E1 for ; Thu, 20 Aug 2020 11:40:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2B9892054F for ; Thu, 20 Aug 2020 11:40:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597923656; bh=WiomYjt9sZvDbsHFAxtIDGIRJxfXz3CVkvFJZ7f488c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=zpFqMyzOvxaXrvFAay/101nefAuKu4K/BQTWJliGXMkcBiTs0FRJgmQNDBhb0gMZq pTytPfEOJLThbRdPSyXfZa0q05dlsbPx6C+b3SOki/n1Xxzz0L2nk6M5GQmp4ph/NU hYj3EOOOXmhobBEAqY5kblC09We8Xw1OCnmFlvcE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728994AbgHTLkh (ORCPT ); Thu, 20 Aug 2020 07:40:37 -0400 Received: from mail.kernel.org ([198.145.29.99]:60432 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730557AbgHTKFI (ORCPT ); Thu, 20 Aug 2020 06:05:08 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BC7E022BEF; Thu, 20 Aug 2020 10:05:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597917908; bh=WiomYjt9sZvDbsHFAxtIDGIRJxfXz3CVkvFJZ7f488c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TJ7S766XMm2ErCzmIMKF9V/3rdLwLTV9G9G7DbsMKeFJab/amiKZm/9ORMF4PoNUr VaSIGPbqLJy9E2hzs4dEKslYAnrm2+zIyEPV+1F83q/rZ/aFcCYumBJ1nCVmwMBoXX MorszOAZArfXpWeAszxIeXDdQ0NgUD9+6d1uIDDw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Steve French Subject: [PATCH 4.9 169/212] smb3: warn on confusing error scenario with sec=krb5 Date: Thu, 20 Aug 2020 11:22:22 +0200 Message-Id: <20200820091610.925346715@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200820091602.251285210@linuxfoundation.org> References: <20200820091602.251285210@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Steve French commit 0a018944eee913962bce8ffebbb121960d5125d9 upstream. When mounting with Kerberos, users have been confused about the default error returned in scenarios in which either keyutils is not installed or the user did not properly acquire a krb5 ticket. Log a warning message in the case that "ENOKEY" is returned from the get_spnego_key upcall so that users can better understand why mount failed in those two cases. CC: Stable Signed-off-by: Steve French Signed-off-by: Greg Kroah-Hartman --- fs/cifs/smb2pdu.c | 2 ++ 1 file changed, 2 insertions(+) --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -776,6 +776,8 @@ SMB2_auth_kerberos(struct SMB2_sess_data spnego_key = cifs_get_spnego_key(ses); if (IS_ERR(spnego_key)) { rc = PTR_ERR(spnego_key); + if (rc == -ENOKEY) + cifs_dbg(VFS, "Verify user has a krb5 ticket and keyutils is installed\n"); spnego_key = NULL; goto out; }