mirror of
https://github.com/reactos/reactos.git
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116 lines
3.3 KiB
C
116 lines
3.3 KiB
C
/*
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* PROJECT: ReactOS DMI/SMBIOS Library
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* LICENSE: GPL - See COPYING in the top level directory
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* FILE: dmilib.c
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* PURPOSE: SMBIOS table parsing functions
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* PROGRAMMERS: Timo Kreuzer (timo.kreuzer@reactos.org)
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* REFERENCES: http://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.0.0.pdf
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*/
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#include "precomp.h"
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static
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PCHAR
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GetDmiString(
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_In_ PDMI_HEADER Header,
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_In_ ULONG FieldOffset)
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{
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ULONG StringIndex;
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PCHAR String;
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StringIndex = ((PUCHAR)Header)[FieldOffset];
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if (StringIndex == 0)
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{
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return NULL;
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}
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String = (PCHAR)Header + Header->Length;
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while (--StringIndex != 0)
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{
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while (*String != 0)
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String++;
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String++;
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}
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return String;
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}
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VOID
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ParseSMBiosTables(
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_In_reads_bytes_(TableSize) PVOID SMBiosTables,
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_In_ ULONG TableSize,
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_Inout_updates_(ID_STRINGS_MAX) PCHAR * Strings)
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{
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PMSSmBios_RawSMBiosTables BiosTablesHeader = SMBiosTables;
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PDMI_HEADER Header;
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ULONG Remaining;
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PCHAR Data;
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Header = (PDMI_HEADER)(&BiosTablesHeader->SMBiosData);
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Remaining = BiosTablesHeader->Size;
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while (Remaining >= sizeof(*Header))
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{
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if (Header->Type == DMI_ENTRY_END_OF_TABLE)
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break;
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switch (Header->Type)
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{
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case DMI_ENTRY_BIOS:
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if (Remaining < DMI_BIOS_SIZE)
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return;
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Strings[BIOS_VENDOR] = GetDmiString(Header, DMI_BIOS_VENDOR);
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Strings[BIOS_VERSION] = GetDmiString(Header, DMI_BIOS_VERSION);
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Strings[BIOS_DATE] = GetDmiString(Header, DMI_BIOS_DATE);
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break;
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case DMI_ENTRY_SYSTEM:
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if (Remaining < DMI_SYS_SIZE)
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return;
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Strings[SYS_VENDOR] = GetDmiString(Header, DMI_SYS_VENDOR);
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Strings[SYS_PRODUCT] = GetDmiString(Header, DMI_SYS_PRODUCT);
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Strings[SYS_VERSION] = GetDmiString(Header, DMI_SYS_VERSION);
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Strings[SYS_SERIAL] = GetDmiString(Header, DMI_SYS_SERIAL);
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Strings[SYS_SKU] = GetDmiString(Header, DMI_SYS_SKU);
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Strings[SYS_FAMILY] = GetDmiString(Header, DMI_SYS_FAMILY);
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break;
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case DMI_ENTRY_BASEBOARD:
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if (Remaining < DMI_BOARD_SIZE)
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return;
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Strings[BOARD_VENDOR] = GetDmiString(Header, DMI_BOARD_VENDOR);
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Strings[BOARD_NAME] = GetDmiString(Header, DMI_BOARD_NAME);
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Strings[BOARD_VERSION] = GetDmiString(Header, DMI_BOARD_VERSION);
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Strings[BOARD_SERIAL] = GetDmiString(Header, DMI_BOARD_SERIAL);
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Strings[BOARD_ASSET_TAG] = GetDmiString(Header, DMI_BOARD_ASSET_TAG);
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break;
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case DMI_ENTRY_CHASSIS:
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case DMI_ENTRY_ONBOARD_DEVICE:
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case DMI_ENTRY_OEMSTRINGS:
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// DMI_ENTRY_IPMI_DEV?
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// DMI_ENTRY_ONBOARD_DEV_EXT?
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break;
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}
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Remaining -= Header->Length;
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Data = (PCHAR)Header + Header->Length;
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/* Now loop until we find 2 zeroes */
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while ((Remaining >= 2) && ((Data[0] != 0) || (Data[1] != 0)))
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{
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Data++;
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Remaining--;
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}
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if (Remaining < 2)
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break;
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/* Go to the next header */
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Remaining -= 2;
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Header = (PDMI_HEADER)((PUCHAR)Data + 2);
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}
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}
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