From patchwork Mon Nov 7 16:25:37 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Lin Ma X-Patchwork-Id: 691971 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3tCHs139Czz9t0v for ; Tue, 8 Nov 2016 03:27:01 +1100 (AEDT) Received: from localhost ([::1]:55075 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c3ml8-0000nM-GP for incoming@patchwork.ozlabs.org; Mon, 07 Nov 2016 11:26:58 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56409) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c3mkM-0000Aq-DH for qemu-devel@nongnu.org; Mon, 07 Nov 2016 11:26:12 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1c3mkH-0006AF-D1 for qemu-devel@nongnu.org; Mon, 07 Nov 2016 11:26:10 -0500 Received: from prv-mh.provo.novell.com ([137.65.248.74]:42737) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1c3mkH-00069p-0e for qemu-devel@nongnu.org; Mon, 07 Nov 2016 11:26:05 -0500 Received: from INET-PRV-MTA by prv-mh.provo.novell.com with Novell_GroupWise; Mon, 07 Nov 2016 09:26:03 -0700 Message-Id: <58211B8102000062000AE074@prv-mh.provo.novell.com> X-Mailer: Novell GroupWise Internet Agent 14.2.1 Date: Mon, 07 Nov 2016 09:25:37 -0700 From: "Lin Ma" To: ,, References: <20160906082833.25428-1-lma@suse.com> In-Reply-To: <20160906082833.25428-1-lma@suse.com> Mime-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 137.65.248.74 X-Content-Filtered-By: Mailman/MimeDel 2.1.21 Subject: [Qemu-devel] =?utf-8?b?562U5aSN77yaICBbUEFUQ0hdIHNtYmlvczogQWRk?= =?utf-8?q?_1_terminator_if_there_is_any_string_field_defined_in_given_tab?= =?utf-8?b?bGUu?= X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Ping. >>> Lin Ma 2016/9/6 星期二 下午 4:28 >>> If user specifies binary file on command line to load smbios entries, then will get error messages while decoding them in guest. Reproducer: 1. dump a smbios table to a binary file from host or guest.(says table 1) 2. load the binary file through command line: 'qemu -smbios file=...'. 3. perform 'dmidecode' or 'dmidecode -t 1' in guest. It reports 'Invalid entry length...' because qemu doesn't add terminator(s) for the table correctly. For smbios tables which have string field provided, qemu should add 1 terminator. For smbios tables which dont have string field provided, qemu should add 2. This patch fixed the issue. Signed-off-by: Lin Ma --- hw/smbios/smbios.c | 90 ++++++++++++++++++++++++++++++++++++++++++++++ include/hw/smbios/smbios.h | 44 +++++++++++++++++++++++ 2 files changed, 134 insertions(+) diff --git a/hw/smbios/smbios.c b/hw/smbios/smbios.c index 74c7102..6293bc5 100644 --- a/hw/smbios/smbios.c +++ b/hw/smbios/smbios.c @@ -885,6 +885,9 @@ void smbios_entry_add(QemuOpts *opts) { const char *val; + int i, terminator_count = 2, table_str_field_count = 0; + int *tables_str_field_offset = NULL; + assert(!smbios_immutable); val = qemu_opt_get(opts, "file"); @@ -926,7 +929,94 @@ void smbios_entry_add(QemuOpts *opts) smbios_type4_count++; } + switch (header->type) { + case 0: + tables_str_field_offset = g_malloc0(sizeof(int) * \ + TYPE_0_STR_FIELD_COUNT); + tables_str_field_offset = (int []){\ + TYPE_0_STR_FIELD_OFFSET_VENDOR, \ + TYPE_0_STR_FIELD_OFFSET_BIOS_VERSION, \ + TYPE_0_STR_FIELD_OFFSET_BIOS_RELEASE_DATE}; + table_str_field_count = sizeof(tables_str_field_offset) / \ + sizeof(tables_str_field_offset[0]); + break; + case 1: + tables_str_field_offset = g_malloc0(sizeof(int) * \ + TYPE_1_STR_FIELD_COUNT); + tables_str_field_offset = (int []){ + TYPE_1_STR_FIELD_OFFSET_MANUFACTURER, \ + TYPE_1_STR_FIELD_OFFSET_PRODUCT, \ + TYPE_1_STR_FIELD_OFFSET_VERSION, \ + TYPE_1_STR_FIELD_OFFSET_SERIAL, \ + TYPE_1_STR_FIELD_OFFSET_SKU, \ + TYPE_1_STR_FIELD_OFFSET_FAMILY}; + table_str_field_count = sizeof(tables_str_field_offset) / \ + sizeof(tables_str_field_offset[0]); + break; + case 2: + tables_str_field_offset = g_malloc0(sizeof(int) * \ + TYPE_2_STR_FIELD_COUNT); + tables_str_field_offset = (int []){\ + TYPE_2_STR_FIELD_OFFSET_MANUFACTURER, \ + TYPE_2_STR_FIELD_OFFSET_PRODUCT, \ + TYPE_2_STR_FIELD_OFFSET_VERSION, \ + TYPE_2_STR_FIELD_OFFSET_SERIAL, \ + TYPE_2_STR_FIELD_OFFSET_ASSET, \ + TYPE_2_STR_FIELD_OFFSET_LOCATION}; + table_str_field_count = sizeof(tables_str_field_offset) / \ + sizeof(tables_str_field_offset[0]); + break; + case 3: + tables_str_field_offset = g_malloc0(sizeof(int) * \ + TYPE_3_STR_FIELD_COUNT); + tables_str_field_offset = (int []){\ + TYPE_3_STR_FIELD_OFFSET_MANUFACTURER, \ + TYPE_3_STR_FIELD_OFFSET_VERSION, \ + TYPE_3_STR_FIELD_OFFSET_SERIAL, \ + TYPE_3_STR_FIELD_OFFSET_ASSET, \ + TYPE_3_STR_FIELD_OFFSET_SKU}; + table_str_field_count = sizeof(tables_str_field_offset) / \ + sizeof(tables_str_field_offset[0]); + break; + case 4: + tables_str_field_offset = g_malloc0(sizeof(int) * \ + TYPE_4_STR_FIELD_COUNT); + tables_str_field_offset = (int []){\ + TYPE_4_STR_FIELD_OFFSET_SOCKET, \ + TYPE_4_STR_FIELD_OFFSET_PROCESSOR_MANUFACTURER, \ + TYPE_4_STR_FIELD_OFFSET_PROCESSOR_VERSION, \ + TYPE_4_STR_FIELD_OFFSET_SERIAL, \ + TYPE_4_STR_FIELD_OFFSET_ASSET, \ + TYPE_4_STR_FIELD_OFFSET_PART}; + table_str_field_count = sizeof(tables_str_field_offset) / \ + sizeof(tables_str_field_offset[0]); + break; + case 17: + tables_str_field_offset = g_malloc0(sizeof(int) * \ + TYPE_17_STR_FIELD_COUNT); + tables_str_field_offset = (int []){\ + TYPE_17_STR_FIELD_OFFSET_DEVICE_LOCATOR, \ + TYPE_17_STR_FIELD_OFFSET_BANK_LOCATOR, \ + TYPE_17_STR_FIELD_OFFSET_MANUFACTURER, \ + TYPE_17_STR_FIELD_OFFSET_SERIAL, \ + TYPE_17_STR_FIELD_OFFSET_ASSET, \ + TYPE_17_STR_FIELD_OFFSET_PART}; + table_str_field_count = sizeof(tables_str_field_offset) / \ + sizeof(tables_str_field_offset[0]); + break; + default: + break; + } + + for (i = 0; i < table_str_field_count; i++) { + if (*(uint8_t *)(smbios_tables + tables_str_field_offset[i]) > 0) { + terminator_count = 1; + break; + } + } + smbios_tables_len += size; + smbios_tables_len += terminator_count; if (size > smbios_table_max) { smbios_table_max = size; } diff --git a/include/hw/smbios/smbios.h b/include/hw/smbios/smbios.h index 1cd53cc..6d59c3d 100644 --- a/include/hw/smbios/smbios.h +++ b/include/hw/smbios/smbios.h @@ -267,4 +267,48 @@ void smbios_get_tables(const struct smbios_phys_mem_area *mem_array, const unsigned int mem_array_size, uint8_t **tables, size_t *tables_len, uint8_t **anchor, size_t *anchor_len); + +#define TYPE_0_STR_FIELD_OFFSET_VENDOR 0x4 +#define TYPE_0_STR_FIELD_OFFSET_BIOS_VERSION 0x5 +#define TYPE_0_STR_FIELD_OFFSET_BIOS_RELEASE_DATE 0x8 +#define TYPE_0_STR_FIELD_COUNT 3 + +#define TYPE_1_STR_FIELD_OFFSET_MANUFACTURER 0x4 +#define TYPE_1_STR_FIELD_OFFSET_PRODUCT 0x5 +#define TYPE_1_STR_FIELD_OFFSET_VERSION 0x6 +#define TYPE_1_STR_FIELD_OFFSET_SERIAL 0x7 +#define TYPE_1_STR_FIELD_OFFSET_SKU 0x19 +#define TYPE_1_STR_FIELD_OFFSET_FAMILY 0x1a +#define TYPE_1_STR_FIELD_COUNT 6 + +#define TYPE_2_STR_FIELD_OFFSET_MANUFACTURER 0x4 +#define TYPE_2_STR_FIELD_OFFSET_PRODUCT 0x5 +#define TYPE_2_STR_FIELD_OFFSET_VERSION 0x6 +#define TYPE_2_STR_FIELD_OFFSET_SERIAL 0x7 +#define TYPE_2_STR_FIELD_OFFSET_ASSET 0x8 +#define TYPE_2_STR_FIELD_OFFSET_LOCATION 0xa +#define TYPE_2_STR_FIELD_COUNT 6 + +#define TYPE_3_STR_FIELD_OFFSET_MANUFACTURER 0x4 +#define TYPE_3_STR_FIELD_OFFSET_VERSION 0x6 +#define TYPE_3_STR_FIELD_OFFSET_SERIAL 0x7 +#define TYPE_3_STR_FIELD_OFFSET_ASSET 0x8 +#define TYPE_3_STR_FIELD_OFFSET_SKU 0x14 +#define TYPE_3_STR_FIELD_COUNT 5 + +#define TYPE_4_STR_FIELD_OFFSET_SOCKET 0x4 +#define TYPE_4_STR_FIELD_OFFSET_PROCESSOR_MANUFACTURER 0x7 +#define TYPE_4_STR_FIELD_OFFSET_PROCESSOR_VERSION 0x10 +#define TYPE_4_STR_FIELD_OFFSET_SERIAL 0x20 +#define TYPE_4_STR_FIELD_OFFSET_ASSET 0x21 +#define TYPE_4_STR_FIELD_OFFSET_PART 0x22 +#define TYPE_4_STR_FIELD_COUNT 6 + +#define TYPE_17_STR_FIELD_OFFSET_DEVICE_LOCATOR 0x10 +#define TYPE_17_STR_FIELD_OFFSET_BANK_LOCATOR 0x11 +#define TYPE_17_STR_FIELD_OFFSET_MANUFACTURER 0x17 +#define TYPE_17_STR_FIELD_OFFSET_SERIAL 0x18 +#define TYPE_17_STR_FIELD_OFFSET_ASSET 0x19 +#define TYPE_17_STR_FIELD_OFFSET_PART 0x1a +#define TYPE_17_STR_FIELD_COUNT 6 #endif /* QEMU_SMBIOS_H */