124 lines
3.0 KiB
C
124 lines
3.0 KiB
C
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#include "dllp.h"
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#include <xcrypt.h>
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#include "dm.h"
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extern ULONG XapiTlsSize;
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void _cinit(void);
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void _rtinit(void);
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int __cdecl main(int argc, ...);
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DWORD WINAPI mainXapiStartup(
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LPVOID lpvParameter
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)
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/*++
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Routine Description:
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Starting point for the app's first thread
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Arguments:
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lpvParameter - Unused.
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Return Value:
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Returns the exit code of the app, it turns into the exit code of the thread.
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--*/
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{
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XapiInitProcess();
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{
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/* Tell the debugger where some of our data is*/
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PDMXAPI pdmxapi;
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pdmxapi = DmGetCurrentXapi();
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if(pdmxapi) {
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extern __declspec(thread) DWORD XapiLastErrorCode;
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pdmxapi->LastErrorTlsOff = (ULONG_PTR)&XapiLastErrorCode -
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(ULONG_PTR)KeGetCurrentThread()->TlsData;
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pdmxapi->XapiStarted = TRUE;
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}
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}
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_rtinit();
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_cinit();
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main(
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0, // argc
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NULL, // argv
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NULL // envp
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);
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RIP("Main thread should not return.");
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XapiBootToDash(XLD_LAUNCH_DASHBOARD_ERROR, XLD_ERROR_INVALID_XBE, 0);
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return STATUS_SUCCESS;
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}
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VOID __cdecl mainCRTStartup(
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VOID
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)
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/*++
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Routine Description:
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Entrypoint for xapi.dll, initializes api + crt components, launches the
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app
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Arguments:
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None.
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Return Value:
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None.
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--*/
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{
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HANDLE hThread;
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PUCHAR EndOfHeaders;
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PXBEIMAGE_CERTIFICATE Certificate;
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ULONG MaxSizeOfCertificate;
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/* Verify that the XBE certificate is wholly contained within the signed
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* XBE headers (the kernel only validated the first
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* XBEIMAGE_CERTIFICATE_BASE_SIZEOF bytes. If it's too big, we truncate
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* the SizeOfCertificate */
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EndOfHeaders = (PUCHAR)XeImageHeader() + XeImageHeader()->SizeOfHeaders;
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Certificate = XeImageHeader()->Certificate;
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MaxSizeOfCertificate = EndOfHeaders - (PUCHAR)Certificate;
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if(MaxSizeOfCertificate < Certificate->SizeOfCertificate)
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Certificate->SizeOfCertificate = MaxSizeOfCertificate;
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/* Set the TLS index, if we have TLS */
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XapiTlsSize = (_tls_used.EndAddressOfRawData -
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_tls_used.StartAddressOfRawData) + _tls_used.SizeOfZeroFill;
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/* The base of the TLS section must be 16-byte aligned. We know
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* that fs:StackBase is 16-byte aligned, ensuring that TlsSize is
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* 16-byte aligned is sufficient */
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XapiTlsSize = (XapiTlsSize + 15) & ~15;
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/* Add four bytes for the index pointer */
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XapiTlsSize += 4;
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*(PULONG)(_tls_used.AddressOfIndex) = (int)XapiTlsSize / -4;
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// Create the app's primary thread
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hThread = CreateThread(
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NULL,
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0,
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mainXapiStartup,
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NULL,
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0,
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NULL
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);
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if (NULL == hThread)
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{
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XapiBootToDash(XLD_LAUNCH_DASHBOARD_ERROR, XLD_ERROR_INVALID_XBE, 0);
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}
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CloseHandle(hThread);
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}
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