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wbemprox: Retrieve the system UUID from the SMBIOS table. 

Signed-off-by: Hans Leidekker <hans@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Hans Leidekker 2019-07-03 12:38:30 +02:00 committed by Alexandre Julliard
parent 4ed190e8ac
commit ea3caa2d83
1 changed files with 83 additions and 41 deletions
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124
dlls/wbemprox/builtin.c
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@ -1493,52 +1493,94 @@ static enum fill_status fill_compsys( struct table *table, const struct expr *co
return status;
}
#include "pshpack1.h"
struct smbios_prologue
{
BYTE calling_method;
BYTE major_version;
BYTE minor_version;
BYTE revision;
DWORD length;
};
struct smbios_header
{
BYTE type;
BYTE length;
WORD handle;
};
struct smbios_system
{
struct smbios_header hdr;
BYTE vendor;
BYTE product;
BYTE version;
BYTE serial;
BYTE uuid[16];
};
#include "poppack.h"
#define RSMB (('R' << 24) | ('S' << 16) | ('M' << 8) | 'B')
static WCHAR *get_compsysproduct_uuid(void)
{
#ifdef __APPLE__
unsigned char uuid[16];
const struct timespec timeout = {1, 0};
if (!gethostuuid( uuid, &timeout ))
{
static const WCHAR fmtW[] =
{'%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X','-','%','0','2','X','%','0','2','X','-',
'%','0','2','X','%','0','2','X','-','%','0','2','X','%','0','2','X','-','%','0','2','X','%','0','2','X',
'%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X',0};
WCHAR *ret = heap_alloc( 37 * sizeof(WCHAR) );
if (!ret) return NULL;
sprintfW( ret, fmtW, uuid[0], uuid[1], uuid[2], uuid[3], uuid[4], uuid[5], uuid[6], uuid[7],
uuid[8], uuid[9], uuid[10], uuid[11], uuid[12], uuid[13], uuid[14], uuid[15] );
return ret;
}
#endif
#ifdef __linux__
int file;
if ((file = open( "/var/lib/dbus/machine-id", O_RDONLY )) != -1)
{
unsigned char buf[32];
if (read( file, buf, sizeof(buf) ) == sizeof(buf))
{
unsigned int i, j;
WCHAR *ret, *p;
static const WCHAR fmtW[] =
{'%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X','-','%','0','2','X','%','0','2','X','-',
'%','0','2','X','%','0','2','X','-','%','0','2','X','%','0','2','X','-','%','0','2','X','%','0','2','X',
'%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X',0};
static const BYTE none[] = {0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
ULONG len;
char *buf = NULL;
const char *ptr, *start;
const struct smbios_prologue *prologue;
const struct smbios_header *hdr;
const struct smbios_system *system;
const BYTE *uuid = NULL;
WCHAR *ret = NULL;
close( file );
if (!(p = ret = heap_alloc( 37 * sizeof(WCHAR) ))) return NULL;
for (i = 0, j = 0; i < 8; i++) p[i] = toupperW( buf[j++] );
p[8] = '-';
for (i = 9; i < 13; i++) p[i] = toupperW( buf[j++] );
p[13] = '-';
for (i = 14; i < 18; i++) p[i] = toupperW( buf[j++] );
p[18] = '-';
for (i = 19; i < 23; i++) p[i] = toupperW( buf[j++] );
p[23] = '-';
for (i = 24; i < 36; i++) p[i] = toupperW( buf[j++] );
ret[i] = 0;
return ret;
if ((len = GetSystemFirmwareTable( RSMB, 0, NULL, 0 )) < sizeof(*prologue) ) goto done;
if (!(buf = heap_alloc( len ))) goto done;
GetSystemFirmwareTable( RSMB, 0, buf, len );
prologue = (const struct smbios_prologue *)buf;
if (prologue->length < sizeof(*hdr)) goto done;
start = (const char *)(prologue + 1);
hdr = (const struct smbios_header *)start;
for (;;)
{
if (uuid || (const char *)hdr - start >= prologue->length - sizeof(*hdr)) break;
if (!hdr->length)
{
WARN( "invalid entry\n" );
break;
}
switch (hdr->type)
{
case 1: /* system entry */
if (hdr->length < sizeof(*system) || (const char *)hdr - start + hdr->length > prologue->length) break;
system = (const struct smbios_system *)hdr;
uuid = system->uuid;
break;
default: /* skip other entries */
for (ptr = (const char *)hdr + hdr->length; *ptr; ptr += strlen(ptr) + 1) { /* nothing */ }
if (ptr == (const char *)hdr + hdr->length) ptr++;
hdr = (const struct smbios_header *)(ptr + 1);
break;
}
close( file );
}
#endif
return heap_strdupW( compsysproduct_uuidW );
if (!uuid || !memcmp( uuid, none, sizeof(none) ) || !(ret = heap_alloc( 37 * sizeof(WCHAR) ))) goto done;
sprintfW( ret, fmtW, uuid[0], uuid[1], uuid[2], uuid[3], uuid[4], uuid[5], uuid[6], uuid[7], uuid[8],
uuid[9], uuid[10], uuid[11], uuid[12], uuid[13], uuid[14], uuid[15] );
done:
heap_free( buf );
if (!ret) ret = heap_strdupW( compsysproduct_uuidW );
return ret;
}
static enum fill_status fill_compsysproduct( struct table *table, const struct expr *cond )