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[APITESTS] Add GetNTDDIVersion() for NTDDI version detection at runtime (#8340)

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- Introduce GetNTDDIVersion() to get NTDDI version at runtime for apitests.
- Introduce GetMajorNTVersion() and GetMinorNTVersion() macros and use them for GetNTVersion()
- Introduce GENERATE_NTDDI() macro to construct NTDDI values from major, minor, service pack, and subversion values.
- Introduce NTDDI_MIN and NTDDI_MAX macros for tests that use NTDDI ranges.

Note: the build number in KUSER_SHARED_DATA is only populated on Windows 10 RTM and later. On older Windows versions, this field is reserved and is usually 0. For this reason, I chose not to expose it as a macro.
This commit is contained in:
Carl J. Bialorucki
2025-08-20 12:54:46 -06:00
committed by GitHub
parent 4da4648092
commit 693e1ebc4c
1 changed files with 75 additions and 1 deletions
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76
modules/rostests/apitests/include/apitest.h
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@@ -14,7 +14,81 @@
/* Magic pointers come from KUSER_SHARED_DATA; needed to get true NT version on Windows 8+ */
#define KUSER_SHARED_DATA_UMPTR 0x7FFE0000
#define GetNTVersion() (((*(ULONG*)(KUSER_SHARED_DATA_UMPTR + 0x026C)) << 8) | (*(ULONG*)(KUSER_SHARED_DATA_UMPTR + 0x0270)))
#define GetMajorNTVersion() (*(ULONG*)(KUSER_SHARED_DATA_UMPTR + 0x026C))
#define GetMinorNTVersion() (*(ULONG*)(KUSER_SHARED_DATA_UMPTR + 0x0270))
#define GetNTVersion() ((GetMajorNTVersion() << 8) | GetMinorNTVersion())
#define GENERATE_NTDDI(Major, Minor, ServicePack, Subversion) \
(((Major) << 24) | ((Minor) << 16) | ((ServicePack) << 8) | (Subversion))
#define NTDDI_MIN 0UL
#define NTDDI_MAX 0xFFFFFFFFUL
static inline ULONG GetNTDDIVersion(VOID)
{
ULONG NTBuildNo, NTMajor, NTMinor, ServicePack, Subversion;
if (GetNTVersion() >= _WIN32_WINNT_WINBLUE)
{
NTMajor = GetMajorNTVersion();
NTMinor = GetMinorNTVersion();
ServicePack = 0;
if (NTMajor > 6)
NTBuildNo = (*(ULONG*)(KUSER_SHARED_DATA_UMPTR + 0x0260));
else
NTBuildNo = 0;
switch (NTBuildNo)
{
// Windows 10
case 10240: Subversion = 0; break; // 1507
case 10586: Subversion = 1; break; // 1511
case 14393: Subversion = 2; break; // 1607
case 15063: Subversion = 3; break; // 1703
case 16299: Subversion = 4; break; // 1709
case 17134: Subversion = 5; break; // 1803
case 17763: Subversion = 6; break; // 1809
case 18362: Subversion = 7; break; // 1903
case 18363: Subversion = 8; break; // 1909
case 19041: Subversion = 9; break; // 2004
case 19042: Subversion = 10; break; // 20H2
case 19043: Subversion = 11; break; // 21H1
case 19044: Subversion = 12; break; // 21H2
case 19045: Subversion = 13; break; // 22H2
// Windows 11
case 22000: Subversion = 14; break; // 21H2
case 22621: Subversion = 15; break; // 22H2
case 22631: Subversion = 16; break; // 23H2
case 26100: Subversion = 17; break; // 24H2
default: Subversion = 0; break; // Unknown build
}
}
else
{
OSVERSIONINFOEXW OSVersion;
OSVersion.dwOSVersionInfoSize = sizeof(OSVersion);
if (GetVersionExW((LPOSVERSIONINFOW)&OSVersion))
{
NTMajor = OSVersion.dwMajorVersion;
NTMinor = OSVersion.dwMinorVersion;
ServicePack = OSVersion.wServicePackMajor;
Subversion = 0;
}
else
{
trace("Estimating an NTDDI value, GetVersionEx failed.\n");
NTMajor = GetMajorNTVersion();
NTMinor = GetMinorNTVersion();
ServicePack = 0;
Subversion = 0;
}
}
return GENERATE_NTDDI(NTMajor, NTMinor, ServicePack, Subversion);
}
#include <pseh/pseh2.h>