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dll: debug: add diagnostic information for FileSystemControl requests/responses

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This commit is contained in:
Bill Zissimopoulos 2016-09-14 16:17:20 -07:00
parent b7368336d2
commit aeff3dc21e
1 changed files with 61 additions and 46 deletions
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101
src/dll/debug.c
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@ -161,6 +161,21 @@ static const char *FspDebugLogVolumeInfoString(FSP_FSCTL_VOLUME_INFO *VolumeInfo
return Buf; return Buf;
} }
static const char *FspDebugLogWideCharBufferString(PVOID WideCharBuf, ULONG Length, char *Buf)
{
WCHAR TempWideCharBuf[64 + 1];
if (Length > sizeof TempWideCharBuf - sizeof(WCHAR))
Length = sizeof TempWideCharBuf - sizeof(WCHAR);
memcpy(TempWideCharBuf, WideCharBuf, Length);
TempWideCharBuf[Length / sizeof(WCHAR)] = L'\0';
wsprintfA(Buf, "%.64S", TempWideCharBuf);
return Buf;
}
static const char *FspDebugLogReparseDataString(PVOID ReparseData0, char *Buf) static const char *FspDebugLogReparseDataString(PVOID ReparseData0, char *Buf)
{ {
union union
@ -168,7 +183,7 @@ static const char *FspDebugLogReparseDataString(PVOID ReparseData0, char *Buf)
PREPARSE_DATA_BUFFER D; PREPARSE_DATA_BUFFER D;
PREPARSE_GUID_DATA_BUFFER G; PREPARSE_GUID_DATA_BUFFER G;
} ReparseData; } ReparseData;
WCHAR SubstituteName[64 + 1], PrintName[64 + 1]; char SubstituteName[64 + 1], PrintName[64 + 1];
ReparseData.D = ReparseData0; ReparseData.D = ReparseData0;
if (0 == ReparseData.D->ReparseDataLength) if (0 == ReparseData.D->ReparseDataLength)
@ -179,57 +194,41 @@ static const char *FspDebugLogReparseDataString(PVOID ReparseData0, char *Buf)
"}", "}",
ReparseData.D->ReparseTag, ReparseData.D->ReparseDataLength); ReparseData.D->ReparseTag, ReparseData.D->ReparseDataLength);
else if (IO_REPARSE_TAG_MOUNT_POINT == ReparseData.D->ReparseTag) else if (IO_REPARSE_TAG_MOUNT_POINT == ReparseData.D->ReparseTag)
{
memcpy(SubstituteName,
ReparseData.D->MountPointReparseBuffer.PathBuffer +
ReparseData.D->MountPointReparseBuffer.SubstituteNameOffset / sizeof(WCHAR),
(int)min(sizeof SubstituteName - sizeof(WCHAR),
ReparseData.D->MountPointReparseBuffer.SubstituteNameLength));
SubstituteName[ReparseData.D->MountPointReparseBuffer.SubstituteNameLength / sizeof(WCHAR)] =
L'\0';
memcpy(PrintName,
ReparseData.D->MountPointReparseBuffer.PathBuffer +
ReparseData.D->MountPointReparseBuffer.PrintNameOffset / sizeof(WCHAR),
(int)min(sizeof SubstituteName - sizeof(WCHAR),
ReparseData.D->MountPointReparseBuffer.PrintNameLength));
PrintName[ReparseData.D->MountPointReparseBuffer.PrintNameLength / sizeof(WCHAR)] =
L'\0';
wsprintfA(Buf, wsprintfA(Buf,
"{" "{"
"ReparseTag=IO_REPARSE_TAG_MOUNT_POINT, " "ReparseTag=IO_REPARSE_TAG_MOUNT_POINT, "
"SubstituteName=\"%S\", " "SubstituteName=\"%s\", "
"PrintName=\"%S\"" "PrintName=\"%s\""
"}", "}",
SubstituteName, FspDebugLogWideCharBufferString(
PrintName); ReparseData.D->MountPointReparseBuffer.PathBuffer +
} ReparseData.D->MountPointReparseBuffer.SubstituteNameOffset / sizeof(WCHAR),
ReparseData.D->MountPointReparseBuffer.SubstituteNameLength,
SubstituteName),
FspDebugLogWideCharBufferString(
ReparseData.D->MountPointReparseBuffer.PathBuffer +
ReparseData.D->MountPointReparseBuffer.PrintNameOffset / sizeof(WCHAR),
ReparseData.D->MountPointReparseBuffer.PrintNameLength,
PrintName));
else if (IO_REPARSE_TAG_SYMLINK == ReparseData.D->ReparseTag) else if (IO_REPARSE_TAG_SYMLINK == ReparseData.D->ReparseTag)
{
memcpy(SubstituteName,
ReparseData.D->SymbolicLinkReparseBuffer.PathBuffer +
ReparseData.D->SymbolicLinkReparseBuffer.SubstituteNameOffset / sizeof(WCHAR),
(int)min(sizeof SubstituteName - sizeof(WCHAR),
ReparseData.D->SymbolicLinkReparseBuffer.SubstituteNameLength));
SubstituteName[ReparseData.D->SymbolicLinkReparseBuffer.SubstituteNameLength / sizeof(WCHAR)] =
L'\0';
memcpy(PrintName,
ReparseData.D->SymbolicLinkReparseBuffer.PathBuffer +
ReparseData.D->SymbolicLinkReparseBuffer.PrintNameOffset / sizeof(WCHAR),
(int)min(sizeof SubstituteName - sizeof(WCHAR),
ReparseData.D->SymbolicLinkReparseBuffer.PrintNameLength));
PrintName[ReparseData.D->SymbolicLinkReparseBuffer.PrintNameLength / sizeof(WCHAR)] =
L'\0';
wsprintfA(Buf, wsprintfA(Buf,
"{" "{"
"ReparseTag=IO_REPARSE_TAG_SYMLINK, " "ReparseTag=IO_REPARSE_TAG_SYMLINK, "
"SubstituteName=\"%S\", " "SubstituteName=\"%s\", "
"PrintName=\"%S\", " "PrintName=\"%s\", "
"Flags=%u" "Flags=%u"
"}", "}",
SubstituteName, FspDebugLogWideCharBufferString(
PrintName, ReparseData.D->SymbolicLinkReparseBuffer.PathBuffer +
ReparseData.D->SymbolicLinkReparseBuffer.SubstituteNameOffset / sizeof(WCHAR),
ReparseData.D->SymbolicLinkReparseBuffer.SubstituteNameLength,
SubstituteName),
FspDebugLogWideCharBufferString(
ReparseData.D->SymbolicLinkReparseBuffer.PathBuffer +
ReparseData.D->SymbolicLinkReparseBuffer.PrintNameOffset / sizeof(WCHAR),
ReparseData.D->SymbolicLinkReparseBuffer.PrintNameLength,
PrintName),
ReparseData.D->SymbolicLinkReparseBuffer.Flags); ReparseData.D->SymbolicLinkReparseBuffer.Flags);
}
else if (IsReparseTagMicrosoft(ReparseData.D->ReparseTag)) else if (IsReparseTagMicrosoft(ReparseData.D->ReparseTag))
wsprintfA(Buf, wsprintfA(Buf,
"{" "{"
@ -625,11 +624,27 @@ FSP_API VOID FspDebugLogResponse(FSP_FSCTL_TRANSACT_RSP *Response)
if (!NT_SUCCESS(Response->IoStatus.Status)) if (!NT_SUCCESS(Response->IoStatus.Status))
FspDebugLogResponseStatus(Response, "Create"); FspDebugLogResponseStatus(Response, "Create");
else if (STATUS_REPARSE == Response->IoStatus.Status) else if (STATUS_REPARSE == Response->IoStatus.Status)
{
if (0/*IO_REPARSE*/ == Response->IoStatus.Information)
FspDebugLog("%S[TID=%04lx]: %p: <<Create IoStatus=%lx[%ld] " FspDebugLog("%S[TID=%04lx]: %p: <<Create IoStatus=%lx[%ld] "
"Reparse.FileName=\"%S\"\n", "Reparse.FileName=\"%s\"\n",
FspDiagIdent(), GetCurrentThreadId(), Response->Hint, FspDiagIdent(), GetCurrentThreadId(), Response->Hint,
Response->IoStatus.Status, Response->IoStatus.Information, Response->IoStatus.Status, Response->IoStatus.Information,
(PWSTR)(Response->Buffer + Response->Rsp.Create.Reparse.FileName.Offset)); FspDebugLogWideCharBufferString(
Response->Buffer + Response->Rsp.Create.Reparse.FileName.Offset,
Response->Rsp.Create.Reparse.FileName.Size,
InfoBuf));
else if (1/*IO_REMOUNT*/ == Response->IoStatus.Information)
FspDebugLogResponseStatus(Response, "Create");
else
FspDebugLog("%S[TID=%04lx]: %p: <<Create IoStatus=%lx[%ld] "
"Reparse.Data=\"%s\"\n",
FspDiagIdent(), GetCurrentThreadId(), Response->Hint,
Response->IoStatus.Status, Response->IoStatus.Information,
FspDebugLogReparseDataString(
Response->Buffer + Response->Rsp.Create.Reparse.Data.Offset,
InfoBuf));
}
else else
FspDebugLog("%S[TID=%04lx]: %p: <<Create IoStatus=%lx[%ld] " FspDebugLog("%S[TID=%04lx]: %p: <<Create IoStatus=%lx[%ld] "
"UserContext=%s, GrantedAccess=%lx, FileInfo=%s\n", "UserContext=%s, GrantedAccess=%lx, FileInfo=%s\n",