dmilib.c File Reference

#include "precomp.h"

Include dependency graph for dmilib.c:

Go to the source code of this file.

Functions
static PCHAR	GetDmiString (_In_ PDMI_HEADER Header, _In_ ULONG FieldOffset)
VOID	ParseSMBiosTables (_In_reads_bytes_(TableSize) PVOID SMBiosTables, _In_ ULONG TableSize, _Inout_updates_(ID_STRINGS_MAX) PCHAR *Strings)

Function Documentation

GetDmiString()

static PCHAR GetDmiString ( _In_ PDMI_HEADER  Header, _In_ ULONG  FieldOffset  )

static

Definition at line 14 of file dmilib.c.

{
    ULONG StringIndex;
    PCHAR String;
 
    StringIndex = ((PUCHAR)Header)[FieldOffset];
    if (StringIndex == 0)
    {
        return NULL;
    }
 
    String = (PCHAR)Header + Header->Length;
 
    while (--StringIndex != 0)
    {
        while (*String != 0)
            String++;
 
        String++;
    }
 
    return String;
}

Referenced by ParseSMBiosTables().

ParseSMBiosTables()

VOID ParseSMBiosTables	(	_In_reads_bytes_(TableSize) PVOID	SMBiosTables,
		_In_ ULONG	TableSize,
		_Inout_updates_(ID_STRINGS_MAX) PCHAR *	Strings
	)

Definition at line 41 of file dmilib.c.

{
    PMSSmBios_RawSMBiosTables BiosTablesHeader = SMBiosTables;
    PDMI_HEADER Header;
    ULONG Remaining;
    PCHAR Data;
 
    Header = (PDMI_HEADER)(&BiosTablesHeader->SMBiosData);
    Remaining = BiosTablesHeader->Size;
 
    while (Remaining >= sizeof(*Header))
    {
        if (Header->Type == DMI_ENTRY_END_OF_TABLE)
            break;
 
        switch (Header->Type)
        {
        case DMI_ENTRY_BIOS:
            if (Remaining < DMI_BIOS_SIZE)
                return;
            Strings[BIOS_VENDOR] = GetDmiString(Header, DMI_BIOS_VENDOR);
            Strings[BIOS_VERSION] = GetDmiString(Header, DMI_BIOS_VERSION);
            Strings[BIOS_DATE] = GetDmiString(Header, DMI_BIOS_DATE);
            break;
 
        case DMI_ENTRY_SYSTEM:
            if (Remaining < DMI_SYS_SIZE)
                return;
            Strings[SYS_VENDOR] = GetDmiString(Header, DMI_SYS_VENDOR);
            Strings[SYS_PRODUCT] = GetDmiString(Header, DMI_SYS_PRODUCT);
            Strings[SYS_VERSION] = GetDmiString(Header, DMI_SYS_VERSION);
            Strings[SYS_SERIAL] = GetDmiString(Header, DMI_SYS_SERIAL);
            Strings[SYS_SKU] = GetDmiString(Header, DMI_SYS_SKU);
            Strings[SYS_FAMILY] = GetDmiString(Header, DMI_SYS_FAMILY);
            break;
 
        case DMI_ENTRY_BASEBOARD:
            if (Remaining < DMI_BOARD_SIZE)
                return;
            Strings[BOARD_VENDOR] = GetDmiString(Header, DMI_BOARD_VENDOR);
            Strings[BOARD_NAME] = GetDmiString(Header, DMI_BOARD_NAME);
            Strings[BOARD_VERSION] = GetDmiString(Header, DMI_BOARD_VERSION);
            Strings[BOARD_SERIAL] = GetDmiString(Header, DMI_BOARD_SERIAL);
            Strings[BOARD_ASSET_TAG] = GetDmiString(Header, DMI_BOARD_ASSET_TAG);
            break;
 
        case DMI_ENTRY_CHASSIS:
        case DMI_ENTRY_ONBOARD_DEVICE:
        case DMI_ENTRY_OEMSTRINGS:
        // DMI_ENTRY_IPMI_DEV?
        // DMI_ENTRY_ONBOARD_DEV_EXT?
            break;
        }
 
        Remaining -= Header->Length;
        Data = (PCHAR)Header + Header->Length;
 
        /* Now loop until we find 2 zeroes */
        while ((Remaining >= 2) && ((Data[0] != 0) || (Data[1] != 0)))
        {
            Data++;
            Remaining--;
        }
 
        if (Remaining < 2)
            break;
 
        /* Go to the next header */
        Remaining -= 2;
        Header = (PDMI_HEADER)((PUCHAR)Data + 2);
    }
}

Referenced by i8042ParseSMBiosTables(), and LoadSMBiosData().