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[NTOSKRNL] In !filecache, try to display FCB name

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When no name is set in the file object, try to read the name
from the FCB. We only support FastFAT (ours) FCB for now.

This is clearly a hack, but for a kdbg command, so ;-)
This commit is contained in:
Pierre Schweitzer 2018-04-27 18:57:30 +02:00
parent 315f9a13d4
commit 43836b0fbb
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GPG Key ID: 7545556C3D585B0B
1 changed files with 11 additions and 1 deletions
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12
ntoskrnl/cc/view.c
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@ -1463,6 +1463,7 @@ ExpKdbgExtFileCache(ULONG Argc, PCHAR Argv[])
ULONG Valid = 0, Dirty = 0;
PROS_SHARED_CACHE_MAP SharedCacheMap;
PUNICODE_STRING FileName;
PWSTR Extra = L"";
SharedCacheMap = CONTAINING_RECORD(ListEntry, ROS_SHARED_CACHE_MAP, SharedCacheMapLinks);
@ -1489,13 +1490,22 @@ ExpKdbgExtFileCache(ULONG Argc, PCHAR Argv[])
{
FileName = &SharedCacheMap->FileObject->FileName;
}
else if (SharedCacheMap->FileObject != NULL &&
SharedCacheMap->FileObject->FsContext != NULL &&
((PFSRTL_COMMON_FCB_HEADER)(SharedCacheMap->FileObject->FsContext))->NodeTypeCode == 0x0502 &&
((PFSRTL_COMMON_FCB_HEADER)(SharedCacheMap->FileObject->FsContext))->NodeByteSize == 0x1F8 &&
((PUNICODE_STRING)(((PUCHAR)SharedCacheMap->FileObject->FsContext) + 0x100))->Length != 0)
{
FileName = (PUNICODE_STRING)(((PUCHAR)SharedCacheMap->FileObject->FsContext) + 0x100);
Extra = L" (FastFAT)";
}
else
{
FileName = &NoName;
}
/* And print */
KdbpPrint("%p\t%d\t%d\t%wZ\n", SharedCacheMap, Valid, Dirty, FileName);
KdbpPrint("%p\t%d\t%d\t%wZ%S\n", SharedCacheMap, Valid, Dirty, FileName, Extra);
}
return TRUE;