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Path to SMSS can be now set in the registry value REGISTRY\MACHINE\SYSTEM\CurrentControlSet\Session Manager\Path. The code is temporarily disabled because it hasn't been tested yet
svn path=/trunk/; revision=3486
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parent
dc91eccd19
commit
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@ -31,6 +31,7 @@
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* RJJ 06/03/99 Moved user PE loader into NTDLL
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* EA 19990717 LdrGetSystemDirectory()
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* EK 20000618 Using SystemRoot link instead of LdrGetSystemDirectory()
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* HYP 20020911 Code to determine smss's path from the registry
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*/
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/* INCLUDES *****************************************************************/
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@ -50,14 +51,15 @@
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/* FUNCTIONS *****************************************************************/
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/*
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* FIXME: The location of the initial process should be configurable,
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* from command line or registry
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* TODO: Read the location of the initial process from command line before
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* trying the registry - embedded setups, like the installation CD-ROM, may not
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* have a SYSTEM hive
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*/
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NTSTATUS LdrLoadInitialProcess (VOID)
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{
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NTSTATUS Status;
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HANDLE ProcessHandle;
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UNICODE_STRING ProcessName;
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UNICODE_STRING ProcessName = {0, 0, NULL};
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OBJECT_ATTRIBUTES ObjectAttributes;
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HANDLE FileHandle;
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HANDLE SectionHandle;
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@ -71,14 +73,65 @@ NTSTATUS LdrLoadInitialProcess (VOID)
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ULONG ResultLength;
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PVOID ImageBaseAddress;
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ULONG InitialStack[5];
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#if 0
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/* FIXME: Test this please */
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HANDLE RootDir;
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PWSTR Environment = L"SystemRoot=\\SystemRoot\0";
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RTL_QUERY_REGISTRY_TABLE RegistryValues[] = {
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{
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NULL,
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RTL_QUERY_REGISTRY_DIRECT,
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L"Path",
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&ProcessName,
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REG_SZ,
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L"\\SystemRoot\\system32\\smss.exe"
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sizeof(L"\\SystemRoot\\system32\\smss.exe") - sizeof(WCHAR)
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},
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{ NULL, 0, NULL, NULL, 0, NULL, 0 }
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};
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/* try to query the SMSS path from the registry */
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Status = RtlQueryRegistryValues(RTL_REGISTRY_CONTROL,
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L"Session Manager",
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RegistryValues,
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NULL,
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Environment);
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/* failure or invalid data: use default */
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if(!NT_SUCCESS(Status) || ProcessName.Length < sizeof(WCHAR))
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RtlInitUnicodeStringFromLiteral(&ProcessName,
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L"\\SystemRoot\\system32\\smss.exe");
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/* relative path: open \SystemRoot\system32 */
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else if(ProcessName.Buffer[0] != L'\\')
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{
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UNICODE_STRING DirPath;
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RtlInitUnicodeStringFromLiteral(&DirPath, L"\\SystemRoot\\system32");
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InitializeObjectAttributes(&ObjectAttributes,
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&DirPath,
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0,
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NULL,
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NULL);
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if(!NT_SUCCESS(ZwOpenFile(&RootDir, 0, &ObjectAttributes, NULL, 0, 0)))
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/* failure: use default */
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RtlInitUnicodeStringFromLiteral(&ProcessName,
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L"\\SystemRoot\\system32\\smss.exe");
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}
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InitializeObjectAttributes(&ObjectAttributes,
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&ProcessName,
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0,
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RootDir,
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NULL);
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#else
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/*
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* Get the absolute path to smss.exe using the
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* SystemRoot link.
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*/
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RtlInitUnicodeStringFromLiteral(&ProcessName,
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L"\\SystemRoot\\system32\\smss.exe");
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/*
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* Open process image to determine ImageBase
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* and StackBase/Size.
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@ -88,6 +141,7 @@ NTSTATUS LdrLoadInitialProcess (VOID)
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0,
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NULL,
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NULL);
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#endif
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DPRINT("Opening image file %S\n", ObjectAttributes.ObjectName->Buffer);
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Status = ZwOpenFile(&FileHandle,
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FILE_ALL_ACCESS,
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@ -95,6 +149,11 @@ NTSTATUS LdrLoadInitialProcess (VOID)
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NULL,
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0,
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0);
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#if 0
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/* FIXME? ExFreePool() should ignore non-pool data */
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RtlFreeUnicodeString(&ProcessName);
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NtClose(RootDir);
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#endif
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if (!NT_SUCCESS(Status))
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{
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DPRINT("Image open failed (Status was %x)\n", Status);
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