From patchwork Mon Jul 18 15:25:55 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Bogdanov X-Patchwork-Id: 12921390 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D9D90C433EF for ; Mon, 18 Jul 2022 15:26:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235391AbiGRP0S (ORCPT ); Mon, 18 Jul 2022 11:26:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39962 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235383AbiGRP0P (ORCPT ); Mon, 18 Jul 2022 11:26:15 -0400 Received: from mta-01.yadro.com (mta-02.yadro.com [89.207.88.252]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1A23B286FF; Mon, 18 Jul 2022 08:26:13 -0700 (PDT) Received: from localhost (unknown [127.0.0.1]) by mta-01.yadro.com (Postfix) with ESMTP id 87CA1411FD; Mon, 18 Jul 2022 15:26:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=yadro.com; h= content-type:content-type:content-transfer-encoding:mime-version :references:in-reply-to:x-mailer:message-id:date:date:subject :subject:from:from:received:received:received:received; s= mta-01; t=1658157971; x=1659972372; bh=ixVEhoT2YJBgYHUnIF7qjt+OP uhWHzCI4cNU+hzt7ew=; b=FcQXOc/22RLDTC9RJudWrgwiznb2AN5fa/4u6IKpZ oQ40IheviZTRCGDazmSOVhFr1Fc8zy9Gvw4gAG5Xdl8rJaJyWu8+K7HFlEVBmjoB uQtcjxbsyKVWIuFMl+P76P4MLpD8eYcJrJ7BeuO746rkBUXJZO/RwRO4tqERBI6/ zQ= X-Virus-Scanned: amavisd-new at yadro.com Received: from mta-01.yadro.com ([127.0.0.1]) by localhost (mta-01.yadro.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ER9f5WtjJ_Lr; Mon, 18 Jul 2022 18:26:11 +0300 (MSK) Received: from T-EXCH-02.corp.yadro.com (t-exch-02.corp.yadro.com [172.17.10.102]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mta-01.yadro.com (Postfix) with ESMTPS id 90E0D4126D; Mon, 18 Jul 2022 18:26:09 +0300 (MSK) Received: from T-EXCH-08.corp.yadro.com (172.17.11.58) by T-EXCH-02.corp.yadro.com (172.17.10.102) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.669.32; Mon, 18 Jul 2022 18:26:09 +0300 Received: from NB-591.corp.yadro.com (10.199.18.20) by T-EXCH-08.corp.yadro.com (172.17.11.58) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.1118.9; Mon, 18 Jul 2022 18:26:08 +0300 From: Dmitry Bogdanov To: Martin Petersen , CC: , , Dmitry Bogdanov Subject: [PATCH 4/4] target: iscsi: not require target authentication Date: Mon, 18 Jul 2022 18:25:55 +0300 Message-ID: <20220718152555.17084-5-d.bogdanov@yadro.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220718152555.17084-1-d.bogdanov@yadro.com> References: <20220718152555.17084-1-d.bogdanov@yadro.com> MIME-Version: 1.0 X-Originating-IP: [10.199.18.20] X-ClientProxiedBy: T-EXCH-01.corp.yadro.com (172.17.10.101) To T-EXCH-08.corp.yadro.com (172.17.11.58) Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org RFC7143 states that Initiator decides what type of authentication to choice: The initiator MUST continue with: CHAP_N= CHAP_R= or, if it requires target authentication, with: CHAP_N= CHAP_R= CHAP_I= CHAP_C= Allow one way authentication if mutual authentication is configured. That passes some tests from Windows HLK for Mutual CHAP with iSNS. Signed-off-by: Dmitry Bogdanov --- drivers/target/iscsi/iscsi_target_auth.c | 8 +++++++- drivers/target/iscsi/iscsi_target_nego.c | 10 +++++----- 2 files changed, 12 insertions(+), 6 deletions(-) diff --git a/drivers/target/iscsi/iscsi_target_auth.c b/drivers/target/iscsi/iscsi_target_auth.c index a5b72968f356..c8a248bd11be 100644 --- a/drivers/target/iscsi/iscsi_target_auth.c +++ b/drivers/target/iscsi/iscsi_target_auth.c @@ -416,7 +416,13 @@ static int chap_server_compute_hash( /* * Get CHAP_I. */ - if (extract_param(nr_in_ptr, "CHAP_I", 10, identifier, &type) < 0) { + ret = extract_param(nr_in_ptr, "CHAP_I", 10, identifier, &type); + if (ret == -ENOENT) { + pr_debug("Could not find CHAP_I. Initiator uses One way authentication.\n"); + auth_ret = 0; + goto out; + } + if (ret < 0) { pr_err("Could not find CHAP_I.\n"); goto out; } diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c index a167fab80588..f2919319ad38 100644 --- a/drivers/target/iscsi/iscsi_target_nego.c +++ b/drivers/target/iscsi/iscsi_target_nego.c @@ -62,15 +62,15 @@ int extract_param( int len; if (!in_buf || !pattern || !out_buf || !type) - return -1; + return -EINVAL; ptr = strstr(in_buf, pattern); if (!ptr) - return -1; + return -ENOENT; ptr = strstr(ptr, "="); if (!ptr) - return -1; + return -EINVAL; ptr += 1; if (*ptr == '0' && (*(ptr+1) == 'x' || *(ptr+1) == 'X')) { @@ -84,12 +84,12 @@ int extract_param( len = strlen_semi(ptr); if (len < 0) - return -1; + return -EINVAL; if (len >= max_length) { pr_err("Length of input: %d exceeds max_length:" " %d\n", len, max_length); - return -1; + return -EINVAL; } memcpy(out_buf, ptr, len); out_buf[len] = '\0';