From patchwork Fri Jul 13 22:45:42 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Jiang X-Patchwork-Id: 10524213 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 6FA8C60245 for ; Fri, 13 Jul 2018 22:45:50 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5D82129A07 for ; Fri, 13 Jul 2018 22:45:50 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 51E8C29A1B; Fri, 13 Jul 2018 22:45:50 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id D808129A07 for ; Fri, 13 Jul 2018 22:45:49 +0000 (UTC) Received: from [127.0.0.1] (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id D08BD209859BB; Fri, 13 Jul 2018 15:45:49 -0700 (PDT) X-Original-To: linux-nvdimm@lists.01.org Delivered-To: linux-nvdimm@lists.01.org Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=192.55.52.115; helo=mga14.intel.com; envelope-from=dave.jiang@intel.com; receiver=linux-nvdimm@lists.01.org Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 1F22720986ABA for ; Fri, 13 Jul 2018 15:45:49 -0700 (PDT) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 13 Jul 2018 15:45:48 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.51,349,1526367600"; d="scan'208";a="72602683" Received: from djiang5-desk3.ch.intel.com ([143.182.136.93]) by orsmga001.jf.intel.com with ESMTP; 13 Jul 2018 15:45:42 -0700 Subject: [PATCH 2/6] ndctl: add update to security support From: Dave Jiang To: vishal.l.verma@intel.com Date: Fri, 13 Jul 2018 15:45:42 -0700 Message-ID: <153152194209.6787.15980557450888985938.stgit@djiang5-desk3.ch.intel.com> In-Reply-To: <153152170933.6787.1111990895827764695.stgit@djiang5-desk3.ch.intel.com> References: <153152170933.6787.1111990895827764695.stgit@djiang5-desk3.ch.intel.com> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-BeenThere: linux-nvdimm@lists.01.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: "Linux-nvdimm developer list." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-nvdimm@lists.01.org Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" X-Virus-Scanned: ClamAV using ClamSMTP Add API call for triggering sysfs knob to update the security for a DIMM in libndctl. Also add the ndctl "update-security" to trigger that as well. ndctl does not actually handle the passphrase file. It only initiates the update and expects all the necessary mechanisms are already in place. Signed-off-by: Dave Jiang --- Documentation/ndctl/Makefile.am | 1 + Documentation/ndctl/ndctl-update-security.txt | 21 +++++++++++++++++++++ builtin.h | 1 + ndctl/dimm.c | 22 ++++++++++++++++++++++ ndctl/lib/dimm.c | 20 ++++++++++++++++++++ ndctl/lib/libndctl.sym | 1 + ndctl/libndctl.h | 1 + ndctl/ndctl.c | 1 + 8 files changed, 68 insertions(+) create mode 100644 Documentation/ndctl/ndctl-update-security.txt diff --git a/Documentation/ndctl/Makefile.am b/Documentation/ndctl/Makefile.am index 4fd9636f..02405c44 100644 --- a/Documentation/ndctl/Makefile.am +++ b/Documentation/ndctl/Makefile.am @@ -46,6 +46,7 @@ man1_MANS = \ ndctl-inject-error.1 \ ndctl-inject-smart.1 \ ndctl-update-firmware.1 \ + ndctl-update-security.1 \ ndctl-list.1 CLEANFILES = $(man1_MANS) diff --git a/Documentation/ndctl/ndctl-update-security.txt b/Documentation/ndctl/ndctl-update-security.txt new file mode 100644 index 00000000..38ca02fa --- /dev/null +++ b/Documentation/ndctl/ndctl-update-security.txt @@ -0,0 +1,21 @@ +// SPDX-License-Identifier: GPL-2.0 + +ndctl-update-security(1) +======================== + +NAME +---- +ndctl-update-security - enabling or update the security passphrase for an NVDIMM + +SYNOPSIS +-------- +[verse] +'ndctl update-security' + +DESCRIPTION +----------- +Provide a generic interface for enabling or updating security passphrase for +NVDIMM. The use of this depends on support from the underlying libndctl, kernel, +as well as the platform itself. + +include::../copyright.txt[] diff --git a/builtin.h b/builtin.h index d3cc7239..e6dc5340 100644 --- a/builtin.h +++ b/builtin.h @@ -47,4 +47,5 @@ int cmd_bat(int argc, const char **argv, void *ctx); #endif int cmd_update_firmware(int argc, const char **argv, void *ctx); int cmd_inject_smart(int argc, const char **argv, void *ctx); +int cmd_update_security(int argc, const char **argv, void *ctx); #endif /* _NDCTL_BUILTIN_H_ */ diff --git a/ndctl/dimm.c b/ndctl/dimm.c index 97643a3c..274714d6 100644 --- a/ndctl/dimm.c +++ b/ndctl/dimm.c @@ -821,6 +821,18 @@ static int action_update(struct ndctl_dimm *dimm, struct action_context *actx) return rc; } +static int action_security_update(struct ndctl_dimm *dimm, + struct action_context *actx) +{ + int rc; + + rc = ndctl_dimm_set_change_key(dimm); + if (rc < 0) + error("Failed to update security for %s\n", + ndctl_dimm_get_devname(dimm)); + return rc; +} + static struct parameters { const char *bus; const char *outfile; @@ -1178,3 +1190,13 @@ int cmd_update_firmware(int argc, const char **argv, void *ctx) count > 1 ? "s" : ""); return count >= 0 ? 0 : EXIT_FAILURE; } + +int cmd_update_security(int argc, const char **argv, void *ctx) +{ + int count = dimm_action(argc, argv, ctx, action_security_update, base_options, + "ndctl update-security [..] []"); + + fprintf(stderr, "security updated %d nmem%s.\n", count >= 0 ? count : 0, + count > 1 ? "s" : ""); + return count >= 0 ? 0 : EXIT_FAILURE; +} diff --git a/ndctl/lib/dimm.c b/ndctl/lib/dimm.c index 8ed58559..ca4d439b 100644 --- a/ndctl/lib/dimm.c +++ b/ndctl/lib/dimm.c @@ -595,3 +595,23 @@ NDCTL_EXPORT int ndctl_dimm_get_security_state(struct ndctl_dimm *dimm, return sysfs_read_attr(ctx, path, state); } + +static int ndctl_dimm_write_security(struct ndctl_dimm *dimm, const char *cmd) +{ + struct ndctl_ctx *ctx = ndctl_dimm_get_ctx(dimm); + char *path = dimm->dimm_buf; + int len = dimm->buf_len; + + if (snprintf(path, len, "%s/security", dimm->dimm_path) >= len) { + err(ctx, "%s: buffer too small!\n", + ndctl_dimm_get_devname(dimm)); + return -ERANGE; + } + + return sysfs_write_attr(ctx, path, cmd); +} + +NDCTL_EXPORT int ndctl_dimm_set_change_key(struct ndctl_dimm *dimm) +{ + return ndctl_dimm_write_security(dimm, "update"); +} diff --git a/ndctl/lib/libndctl.sym b/ndctl/lib/libndctl.sym index 8040d7de..e2a359b8 100644 --- a/ndctl/lib/libndctl.sym +++ b/ndctl/lib/libndctl.sym @@ -372,4 +372,5 @@ LIBNDCTL_17 { global: ndctl_dimm_smart_inject_supported; ndctl_dimm_get_security_state; + ndctl_dimm_set_change_key; } LIBNDCTL_16; diff --git a/ndctl/libndctl.h b/ndctl/libndctl.h index d48513ce..663847b6 100644 --- a/ndctl/libndctl.h +++ b/ndctl/libndctl.h @@ -660,6 +660,7 @@ enum ND_FW_STATUS ndctl_cmd_fw_xlat_firmware_status(struct ndctl_cmd *cmd); struct ndctl_cmd *ndctl_dimm_cmd_new_ack_shutdown_count(struct ndctl_dimm *dimm); int ndctl_dimm_fw_update_supported(struct ndctl_dimm *dimm); int ndctl_dimm_get_security_state(struct ndctl_dimm *dimm, char *state); +int ndctl_dimm_set_change_key(struct ndctl_dimm *dimm); #ifdef __cplusplus } /* extern "C" */ diff --git a/ndctl/ndctl.c b/ndctl/ndctl.c index 7daadebd..81987e81 100644 --- a/ndctl/ndctl.c +++ b/ndctl/ndctl.c @@ -88,6 +88,7 @@ static struct cmd_struct commands[] = { { "inject-smart", cmd_inject_smart }, { "wait-scrub", cmd_wait_scrub }, { "start-scrub", cmd_start_scrub }, + { "update-security", cmd_update_security }, { "list", cmd_list }, { "help", cmd_help }, #ifdef ENABLE_TEST