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The OEM strings table in SMBIOS allows the vendor to pass arbitrary
strings into the guest OS. This can be used as a way to pass data to an
application like cloud-init, or potentially as an alternative to the
kernel command line for OS installers where you can't modify the install
ISO image to change the kernel args.
As an example, consider if cloud-init and anaconda supported OEM strings
you could use something like
<oemStrings>
<entry>cloud-init:ds=nocloud-net;s=http://10.10.0.1:8000/</entry>
<entry>anaconda:method=http://dl.fedoraproject.org/pub/fedora/linux/releases/25/x86_64/os</entry>
</oemStrings>
use of a application specific prefix as illustrated above is
recommended, but not mandated, so that an app can reliably identify
which of the many OEM strings are targetted at it.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
145 lines
3.9 KiB
C
145 lines
3.9 KiB
C
/*
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* virsysinfo.h: get SMBIOS/sysinfo information from the host
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*
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* Copyright (C) 2010-2011 Red Hat, Inc.
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* Copyright (C) 2010 Daniel Veillard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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* Author: Daniel Veillard <veillard@redhat.com>
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*/
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#ifndef __VIR_SYSINFOS_H__
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# define __VIR_SYSINFOS_H__
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# include "internal.h"
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# include "virutil.h"
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# include "virbuffer.h"
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typedef enum {
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VIR_SYSINFO_SMBIOS,
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VIR_SYSINFO_LAST
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} virSysinfoType;
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typedef struct _virSysinfoProcessorDef virSysinfoProcessorDef;
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typedef virSysinfoProcessorDef *virSysinfoProcessorDefPtr;
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struct _virSysinfoProcessorDef {
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char *processor_socket_destination;
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char *processor_type;
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char *processor_family;
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char *processor_manufacturer;
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char *processor_signature;
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char *processor_version;
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char *processor_external_clock;
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char *processor_max_speed;
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char *processor_status;
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char *processor_serial_number;
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char *processor_part_number;
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};
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typedef struct _virSysinfoMemoryDef virSysinfoMemoryDef;
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typedef virSysinfoMemoryDef *virSysinfoMemoryDefPtr;
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struct _virSysinfoMemoryDef {
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char *memory_size;
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char *memory_form_factor;
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char *memory_locator;
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char *memory_bank_locator;
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char *memory_type;
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char *memory_type_detail;
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char *memory_speed;
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char *memory_manufacturer;
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char *memory_serial_number;
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char *memory_part_number;
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};
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typedef struct _virSysinfoBIOSDef virSysinfoBIOSDef;
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typedef virSysinfoBIOSDef *virSysinfoBIOSDefPtr;
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struct _virSysinfoBIOSDef {
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char *vendor;
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char *version;
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char *date;
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char *release;
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};
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typedef struct _virSysinfoSystemDef virSysinfoSystemDef;
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typedef virSysinfoSystemDef *virSysinfoSystemDefPtr;
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struct _virSysinfoSystemDef {
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char *manufacturer;
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char *product;
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char *version;
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char *serial;
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char *uuid;
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char *sku;
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char *family;
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};
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typedef struct _virSysinfoBaseBoardDef virSysinfoBaseBoardDef;
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typedef virSysinfoBaseBoardDef *virSysinfoBaseBoardDefPtr;
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struct _virSysinfoBaseBoardDef {
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char *manufacturer;
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char *product;
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char *version;
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char *serial;
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char *asset;
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char *location;
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/* XXX board type */
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};
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typedef struct _virSysinfoOEMStringsDef virSysinfoOEMStringsDef;
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typedef virSysinfoOEMStringsDef *virSysinfoOEMStringsDefPtr;
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struct _virSysinfoOEMStringsDef {
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size_t nvalues;
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char **values;
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};
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typedef struct _virSysinfoDef virSysinfoDef;
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typedef virSysinfoDef *virSysinfoDefPtr;
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struct _virSysinfoDef {
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int type;
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virSysinfoBIOSDefPtr bios;
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virSysinfoSystemDefPtr system;
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size_t nbaseBoard;
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virSysinfoBaseBoardDefPtr baseBoard;
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size_t nprocessor;
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virSysinfoProcessorDefPtr processor;
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size_t nmemory;
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virSysinfoMemoryDefPtr memory;
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virSysinfoOEMStringsDefPtr oemStrings;
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};
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virSysinfoDefPtr virSysinfoRead(void);
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void virSysinfoBIOSDefFree(virSysinfoBIOSDefPtr def);
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void virSysinfoSystemDefFree(virSysinfoSystemDefPtr def);
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void virSysinfoBaseBoardDefClear(virSysinfoBaseBoardDefPtr def);
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void virSysinfoOEMStringsDefFree(virSysinfoOEMStringsDefPtr def);
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void virSysinfoDefFree(virSysinfoDefPtr def);
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int virSysinfoFormat(virBufferPtr buf, virSysinfoDefPtr def)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
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bool virSysinfoIsEqual(virSysinfoDefPtr src,
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virSysinfoDefPtr dst);
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VIR_ENUM_DECL(virSysinfo)
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#endif /* __VIR_SYSINFOS_H__ */
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