[PATCH v2 0/1] MR824: ntoskrnl: Implement KeGetCurrentProcessorNumberEx

[Etaash Mathamsetty (＠etaash.mathamsetty)]

required by mrac anti-cheat

--
  v2: ntoskrnl: Implement KeGetCurrentProcessorNumberEx

https://gitlab.winehq.org/wine/wine/-/merge_requests/824

[PATCH v2 1/1] ntoskrnl: Implement KeGetCurrentProcessorNumberEx

[Etaash Mathamsetty]

From: Etaash Mathamsetty

---
 dlls/ntoskrnl.exe/ntoskrnl.c        | 10 ++++++++++
 dlls/ntoskrnl.exe/ntoskrnl.exe.spec |  1 +
 2 files changed, 11 insertions(+)

diff --git a/dlls/ntoskrnl.exe/ntoskrnl.c b/dlls/ntoskrnl.exe/ntoskrnl.c
index 031e9900544..6c814f46dea 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.c
+++ b/dlls/ntoskrnl.exe/ntoskrnl.c
@@ -3379,6 +3379,16 @@ VOID WINAPI KeSetTargetProcessorDpc(PRKDPC dpc, CCHAR number)
     FIXME("%p, %d stub\n", dpc, number);
 }

+/***********************************************************************
+ *          KeGetCurrentProcessorNumberEx   (NTOSKRNL.EXE.@)
+ */
+ULONG WINAPI KeGetCurrentProcessorNumberEx(PPROCESSOR_NUMBER ProcNumber)
+{
+    if(ProcNumber) FIXME("Unhandled ProcNumber\n");
+
+    return NtGetCurrentProcessorNumber();
+}
+
 /***********************************************************************
  *           READ_REGISTER_BUFFER_UCHAR   (NTOSKRNL.EXE.@)
  */
diff --git a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
index e3898b06f89..2377311f9c5 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
+++ b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
@@ -555,6 +555,7 @@
 @ stub KeFlushEntireTb
 @ stdcall KeFlushQueuedDpcs()
 @ stdcall KeGetCurrentProcessorNumber() NtGetCurrentProcessorNumber
+@ stdcall KeGetCurrentProcessorNumberEx(ptr)
 @ stdcall KeGetCurrentThread()
 @ stub KeGetPreviousMode
 @ stub KeGetRecommendedSharedDataAlignment

[Zhiyi Zhang (＠zhiyi)]

Zhiyi Zhang (@zhiyi) commented about dlls/ntoskrnl.exe/ntoskrnl.c:
>  FIXME("%p, %d stub\n", dpc, number);
>
> }
>
> +/***********************************************************************
> -
> -
>      KeGetCurrentProcessorNumberEx   (NTOSKRNL.EXE.@)
> - */
>
> +ULONG WINAPI KeGetCurrentProcessorNumberEx(PPROCESSOR_NUMBER ProcNumber)
> +{
> - if(ProcNumber) FIXME("Unhandled ProcNumber\n");

Space after if. ProcNumber -> process_number. And the parameter is optional so you need to check for NULL pointers. Also, I think the PROCESSOR_NUMBER structure is simple enough to be stubbed as well. Just report all Group and Reserved as zero and Number from NtGetCurrentProcessorNumber() and then print a FIXME. A FIXME at the start saying the function is a semi-stub is also helpful.

[Etaash Mathamsetty (＠etaash.mathamsetty)]

On Mon Sep 12 01:56:43 2022 +0000, Zhiyi Zhang wrote:
> Space after if. ProcNumber -> process_number. And the parameter is
> optional so you need to check for NULL pointers. Also, I think the
> PROCESSOR_NUMBER structure is simple enough to be stubbed as well. Just
> report all Group and Reserved as zero and Number from
> NtGetCurrentProcessorNumber() and then print a FIXME. A FIXME at the
> start saying the function is a semi-stub is also helpful.

that was my original patch, but I thought that would not be even close to correct lol  
I'll fix this.