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Lucas

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Feb 24, 2021, 7:00:38 PM2/24/21

to Dokan

Hi everyone,

I'm having two problems and I think these errors have the same cause

I already can read/write/list/delete the content of my virtual drive.

I have already tested the consistency of the data copying to and from my drive.

1º

When I open a .TXT file with notepad (Windows Notepad), I get the message error: 'Cannot open the file H:\teste.txt. Check for a disk in the specified drive'

If I use another program like Notepad++/WordPad ... the file opens successfully.

The dokanOperations.ReadFile is NOT CALLED at any time.

2º

When I try to execute a .EXE, I get these messages:

- With ADMINISTRATOR privileges: "H:\teste1.exe. The specified path does not exist. Check the path and try again. "

- Whitout ADMINISTRATOR privileges: "The application could not be initialized correctly (0xc0000006)"

I see in my log that dokanOperations.GetFileSecurity is called in this case (.EXE) but I return STATUS_NOT_IMPLEMENTED to let Dokan

create a security basic information for me.

This is my dokanOptions.Options: DOKAN_OPTION_NETWORK | DOKAN_OPTION_ENABLE_UNMOUNT_NETWORK_DRIVE | DOKAN_OPTION_CASE_SENSITIVE

This is my FileSystemFlags in return in GetVolumeInformation: FILE_CASE_SENSITIVE_SEARCH | FILE_CASE_PRESERVED_NAMES

Can anyone help me in any way ? Ideas, tips ....

If necessary, I send the Dokan debug

Thanks

This is my program log:

---------------------------

Th[6952] ### Mounted

Th[7420] ### CreateFile: [/] CreateDisposion:1 FileAttr: 0

Th[7420] ------> HANDLER CREATED --> 0

Th[7892] ### GetFileInformation HANDLER: 0 [/]

Th[2104] ### GetFileInformation HANDLER: 0 [/]

Th[6584] ### Cleannup HANDLER: 0

Th[7420] ### CloseFile

Th[7892] ### CreateFile: [/] CreateDisposion:1 FileAttr: 0

Th[7892] ------> HANDLER CREATED --> 0

Th[2104] ### GetFileInformation HANDLER: 0 [/]

Th[6584] ### Cleannup HANDLER: 0

Th[7420] ### CloseFile

Th[7892] ### CreateFile: [/] CreateDisposion:1 FileAttr: 0

Th[7892] ------> HANDLER CREATED --> 0

Th[2104] ### GetFileInformation HANDLER: 0 [/]

Th[8020] ### GetFileInformation HANDLER: 0 [/]

Th[6584] ### Cleannup HANDLER: 0

Th[7420] ### CloseFile

Th[7892] ### CreateFile: [/] CreateDisposion:1 FileAttr: 0

Th[7892] ------> HANDLER CREATED --> 0

Th[2104] ### GetFileInformation HANDLER: 0 [/]

Th[7420] ### Cleannup HANDLER: 0

Th[7892] ### CloseFile

Th[2104] ### CreateFile: [/] CreateDisposion:1 FileAttr: 0

Th[2104] ------> HANDLER CREATED --> 0

Th[8020] ### GetFileInformation HANDLER: 0 [/]

Th[7420] ### Cleannup HANDLER: 0

Th[2104] ### CreateFile: [/] CreateDisposion:1 FileAttr: 0

Th[7420] ### CloseFile

Th[2104] ------> HANDLER CREATED --> 0

Th[8020] ### GetFileInformation HANDLER: 0 [/]

Th[7892] ### Cleannup HANDLER: 0

Th[2104] ### CreateFile: [/] CreateDisposion:1 FileAttr: 0

Th[7420] ### CloseFile

Th[2104] ------> HANDLER CREATED --> 0

Th[8020] ### GetFileInformation HANDLER: 0 [/]

Th[7892] ### Cleannup HANDLER: 0

Th[7420] ### CreateFile: [/] CreateDisposion:1 FileAttr: 0

Th[2104] ### CloseFile

Th[7420] ------> HANDLER CREATED --> 0

Th[8020] ### CreateFile: [/desktop.ini] CreateDisposion:1 FileAttr: 0

Th[8020] <<<<< FILE NOT FOUND >>>> --> STATUS_OBJECT_NAME_NOT_FOUND

Th[6584] ### CreateFile: [/] CreateDisposion:1 FileAttr: 0

Th[6584] ------> HANDLER CREATED --> 1

Th[7892] ### FindFilesWithPattern [*] --> STATUS_NOT_IMPLEMENTED

Th[7892] ### FindFiles HANDLER 1 [/]

Th[7892] ------------> [teste.txt] 65401

Th[7420] ### Cleannup HANDLER: 1

Th[8020] ### CloseFile

Th[6584] ### CreateFile: [/] CreateDisposion:1 FileAttr: 0

Th[6584] ------> HANDLER CREATED --> 1

Th[7892] ### FindFilesWithPattern [teste.txt] --> STATUS_NOT_IMPLEMENTED

Th[7892] ### FindFiles HANDLER 1 [/]

Th[7892] ------------> [teste.txt] 65401

Th[2104] ### Cleannup HANDLER: 1

Th[7420] ### CloseFile

Th[8020] ### CreateFile: [/] CreateDisposion:1 FileAttr: 0

Th[8020] ------> HANDLER CREATED --> 1

Th[6584] ### FindFilesWithPattern [teste.txt] --> STATUS_NOT_IMPLEMENTED

Th[6584] ### FindFiles HANDLER 1 [/]

Th[6584] ------------> [teste.txt] 65401

Th[7892] ### Cleannup HANDLER: 1

Th[2104] ### CloseFile

Th[7420] ### CreateFile: [/] CreateDisposion:1 FileAttr: 0

Th[7420] ------> HANDLER CREATED --> 1

Th[8020] ### GetFileInformation HANDLER: 1 [/]

Th[6584] ### Cleannup HANDLER: 1

Th[6584] ### CloseFile

Th[2104] ### CreateFile: [/] CreateDisposion:1 FileAttr: 0

Th[7420] ### CreateFile: [/teste.txt] CreateDisposion:1 FileAttr: 0

Th[2104] ------> HANDLER CREATED --> 1

Th[7420] ------> HANDLER CREATED --> 2

Th[8020] ### GetFileInformation HANDLER: 2 [/teste.txt]

Th[8020] INFO ---> TYPE: F SIZE:65401 ID:4724

Th[7892] ### GetFileInformation HANDLER: 2 [/teste.txt]

Th[7892] INFO ---> TYPE: F SIZE:65401 ID:4724

Th[6584] ### Cleannup HANDLER: 2

Th[6584] ### CloseFile

Th[7420] ### CreateFile: [/teste.txt] CreateDisposion:1 FileAttr: 0

Th[7420] ------> HANDLER CREATED --> 2

Th[8020] ### GetFileInformation HANDLER: 2 [/teste.txt]

Th[8020] INFO ---> TYPE: F SIZE:65401 ID:4724

Th[7892] ### GetFileInformation HANDLER: 2 [/teste.txt]

Th[7892] INFO ---> TYPE: F SIZE:65401 ID:4724

Th[2104] ### Cleannup HANDLER: 2

Th[6584] ### CloseFile

Th[7420] ### CreateFile: [/] CreateDisposion:1 FileAttr: 0

Th[8020] ### CreateFile: [/] CreateDisposion:1 FileAttr: 0

Th[7420] ------> HANDLER CREATED --> 2

Th[8020] ------> HANDLER CREATED --> 3

Th[7892] ### FindFilesWithPattern [teste.txt] --> STATUS_NOT_IMPLEMENTED

Th[2104] ### FindFilesWithPattern [teste.txt] --> STATUS_NOT_IMPLEMENTED

Th[7892] ### FindFiles HANDLER 2 [/]

Th[2104] ### FindFiles HANDLER 3 [/]

Th[7892] ------------> [teste.txt] 65401

Th[6584] ### Cleannup HANDLER: 2

Th[2104] ------------> [teste.txt] 65401

Th[8020] ### CreateFile: [/] CreateDisposion:1 FileAttr: 0

Th[7892] ### Cleannup HANDLER: 3

Th[7420] ### CloseFile

Th[8020] ------> HANDLER CREATED --> 2

Th[2104] ### CreateFile: [/teste.txt] CreateDisposion:1 FileAttr: 128

Th[6584] ### CloseFile

Th[7892] ### FindFilesWithPattern [teste.txt] --> STATUS_NOT_IMPLEMENTED

Th[2104] ------> HANDLER CREATED --> 3

Th[7892] ### FindFiles HANDLER 2 [/]

Th[7420] ### GetFileInformation HANDLER: 3 [/teste.txt]

Th[7892] ------------> [teste.txt] 65401

Th[7420] INFO ---> TYPE: F SIZE:65401 ID:4724

Th[8020] ### Cleannup HANDLER: 2

Th[2104] ### GetFileInformation HANDLER: 3 [/teste.txt]

Th[7892] ### CloseFile

Th[2104] INFO ---> TYPE: F SIZE:65401 ID:4724

Th[7420] ### CreateFile: [/] CreateDisposion:1 FileAttr: 0

Th[6584] ### GetFileInformation HANDLER: 3 [/teste.txt]

Th[7420] ------> HANDLER CREATED --> 2

Th[6584] INFO ---> TYPE: F SIZE:65401 ID:4724

Th[8020] ### FindFilesWithPattern [teste.txt] --> STATUS_NOT_IMPLEMENTED

Th[7892] ### Cleannup HANDLER: 3

Th[8020] ### FindFiles HANDLER 2 [/]

Th[8020] ------------> [teste.txt] 65401

Th[7420] ### Cleannup HANDLER: 2

Th[6584] ### CloseFile

Th[7892] ### CreateFile: [/teste.txt] CreateDisposion:1 FileAttr: 128

Th[7892] ------> HANDLER CREATED --> 2

Th[8020] ### GetFileInformation HANDLER: 2 [/teste.txt]

Th[8020] INFO ---> TYPE: F SIZE:65401 ID:4724

Th[7420] ### Cleannup HANDLER: 2

Th[6584] ### CloseFile

Th[7892] ### CreateFile: [/] CreateDisposion:1 FileAttr: 0

Th[7892] ------> HANDLER CREATED --> 2

Th[2104] ### FindFilesWithPattern [teste.txt] --> STATUS_NOT_IMPLEMENTED

Th[2104] ### FindFiles HANDLER 2 [/]

Th[2104] ------------> [teste.txt] 65401

Th[8020] ### Cleannup HANDLER: 2

Th[7420] ### CloseFile

Th[6584] ### CreateFile: [/teste.txt] CreateDisposion:1 FileAttr: 128

Th[6584] ------> HANDLER CREATED --> 2

Th[2104] ### GetFileInformation HANDLER: 2 [/teste.txt]

Th[2104] INFO ---> TYPE: F SIZE:65401 ID:4724

Th[8020] ### Cleannup HANDLER: 2

Th[7420] ### CloseFile

Th[6584] ### CreateFile: [/] CreateDisposion:1 FileAttr: 128

Th[6584] ------> HANDLER CREATED --> 2

Th[2104] ### GetFileInformation HANDLER: 2 [/]

Th[8020] ### Cleannup HANDLER: 2

Th[7420] ### CloseFile

Th[6584] ### CreateFile: [/] CreateDisposion:1 FileAttr: 128

Th[6584] ------> HANDLER CREATED --> 2

Th[2104] ### GetFileInformation HANDLER: 2 [/]

Th[8020] ### Cleannup HANDLER: 2

Th[7420] ### CloseFile

Th[6584] ### CreateFile: [/teste.txt] CreateDisposion:1 FileAttr: 128

Th[6584] ------> HANDLER CREATED --> 2

Th[2104] ### GetFileInformation HANDLER: 2 [/teste.txt]

Th[2104] INFO ---> TYPE: F SIZE:65401 ID:4724

Th[8020] ### Cleannup HANDLER: 2

Th[7420] ### CloseFile

Th[6584] ### CreateFile: [/] CreateDisposion:1 FileAttr: 128

Th[6584] ------> HANDLER CREATED --> 2

Th[2104] ### GetFileInformation HANDLER: 2 [/]

Th[8020] ### Cleannup HANDLER: 2

Th[7420] ### CloseFile

Th[7892] ### CreateFile: [/] CreateDisposion:1 FileAttr: 0

Th[6584] ### CloseFile

Th[7892] ------> HANDLER CREATED --> 2

Th[2104] ### FindFilesWithPattern [teste.txt] --> STATUS_NOT_IMPLEMENTED

Th[2104] ### FindFiles HANDLER 2 [/]

Th[2104] ------------> [teste.txt] 65401

Th[8020] ### Cleannup HANDLER: 2

Th[7420] ### CloseFile

Th[6584] ### Cleannup HANDLER: 1

Th[7892] ### CloseFile

Lucas

unread,

Feb 24, 2021, 10:06:20 PM2/24/21

to Dokan

I found the problem. =)

In my ReadFile function, I only write the log if a valid handler (DokanFileInfo->Context) is passed.

I was reading the Dokan documentation, calmly, and I came across this:

"Note: when applications make use of memory mapped files, WriteFile or ReadFile functions may be invoked after Cleanup in order to complete the I/O operations. The file system application should also properly work in this case."

I thought: "Oooowww..."

.. and I changed my ReadFile and I see that the function is called with an invalid HANDLER.

Now, my ReadFile and WriteFile are accepting this situation and both problems have been solved.

I've been trying to solve this for a few days and it was only writing here that I found the problem.