Re: query fs info level 0x100

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Am 29.04.24 um 18:13 schrieb Steve French via samba-technical:
On Mon, Apr 29, 2024 at 12:31 AM Ralph Boehme <slow@xxxxxxxxx> wrote:

On 4/29/24 1:27 AM, Steve French wrote:
Trying some xfstests to current Samba (master branch, Samba 4.21),
they fail because query fs info (level 0x100) is returning
STATUS_INVALID_INFO_CLASS) - this works to ksmbd and I thought it used
to work to Samba.   I do see the SMB3.1.1 opens with the POSIX open
context works - but the query fs info failing causes xfstests to fail.

Is that missing rom current mainline Samba?

have you enabled SMB3 UNIX Extensions?

smb3 unix extensions = yes

Yes - it is set to yes in the smb.conf for both the global section and
the per share section

I also see that POSIX extensions in:
1) the server returns posix negotiation context in the SMB3.1.1
negotiate protocol response
2) the server returns the level 100 (FILE_POSIX_INFO) query info responses

But the (current Samba) server fails the level 100 (level 0x64 in hex)
FS_POSIX_INFO with "STATUS_INVALID_ERROR_CLASS"
which causes all xfstests to break since they can't verify the mount
(e.g. with "stat -f").
Nothing related to this on the client has changed, and ksmbd has
always supported this so works fine there.

I guess fsinfo_unix_valid_level() needs
fsp->posix_flags & FSP_POSIX_FLAGS_OPEN
instead of
fsp->posix_flags == FSP_POSIX_FLAGS_OPEN

In smbd_do_qfilepathinfo() we do the check with '&' instead of '=='.

metze




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