The Samba-Bugzilla – Bug 12539
Samba 4.5+ Browsing DFS share get NT_STATUS_OBJECT_NAME_INVALID
Last modified: 2017-04-06 08:29:45 UTC
Browsing a DFS share hosted in a Samba 4.5.3 / 4.5.4 server generate NT_STATUS_OBJECT_NAME_INVALID
The same apply with a Windows Server 2003 as a client to a Samba 4.5.3 / 4.5.4 server
It's OK with a Windows Server 2008R2 as a client.
Command used (samba 4.5.4 client) to browse a Samba 4.5.3 / 4.5.4 DFS server :
/usr/local/samba/bin/smbclient //champdumoulin/documents -U email@example.com%PASSWORD -c 'ls'
[root@venus ~]# /usr/local/samba/bin/smbclient //champdumoulin/documents -U firstname.lastname@example.org%PASSWORD -c 'ls'
Domain=[MYDOMAIN] OS=[Windows 6.1] Server=[Samba 4.5.4]
NT_STATUS_OBJECT_NAME_INVALID listing \champdumoulin\documents\*
Share on samba server :
comment = Les documents
path = /home/samba/documents
browseable = yes
writable = yes
public = yes
create mask = 2775
directory mask = 2775
msdfs root = yes
inherit acls = yes
inherit owner = yes
inherit permissions = yes
veto files = /.SyncTrash/.SyncID/.SyncIgnore/*.!sync/.sync/.stfolder/
hide files = /desktop.ini/Thumbs.db/~$*/.SyncTrash/.SyncArchive/.SyncID/.SyncIgnore/*.!sync/*.SyncPart/*.SyncTemp/.sync/
follow symlinks = yes
wide links = yes
vfs objects = shadow_copy2
shadow:snapdir = /home/samba/shadow
shadow:basedir = /home/samba
shadow:format = %Y-%m-%d
shadow:localtime = no
shadow:sort = desc
This share worked in a Samba Server 4.4.
Could you provide a network capture of that command for both samba version (4.4 and 4.5.4) along with full debug output of both the client and the server?
We have a wiki page if you are unfamiliar with how to make a network capture https://wiki.samba.org/index.php/Capture_Packets
As for the logging:
- smbclient: use -d10
- smbd: add the following to the [global] section of your smb.conf:
logging = file
# directory must already exist
log file = /tmp/debug/debuglog.%I
log level = 10
You should get a log file per IP, you can archive the directory and send it here.
Also try to empty the log dir between tests.
Created attachment 12926 [details]
Trace of network traffic requesting DFS root
Created attachment 12927 [details]
Debug log of Samba DC
is there anything else I could provide to help sort out this issue? THX!
I also confirm this issue.
Since we upgraded to branch 4.5 (4.5.8), our web access to Samba dfs root share (which uses jcifs library) does not work anymore.
If I downgrade to branch 4.4 (4.4.13), it works again.
It only affects dfs root shares, not regular shares.
No problem with recent Windows/Mac clients but I also confirm it doesn't work with smbclient v 4.5.8 either.
In both cases (jcifs and smbclient), the SMB protocol used is NT1 while recent Windows/Mac clients are using SMB3+
I tried to enable ntlm auth which was a defaulted to no from 4.5.0 but it does not resolve the issue.
In fact, only enumerating content using wildcard '*' seems to cause the issue:
smbclient -U "UNIV-LR\\arodrigu" //Samba/DocumentsCommuns
Domain=[UNIV-LR] OS=[Windows 6.1] Server=[Samba 4.5.7]
smb: \> ls
NT_STATUS_OBJECT_NAME_INVALID listing \Samba\DocumentsCommuns\*
smb: \> ls pipo
pipo D 0 Thu Apr 6 10:00:16 2017
9418752 blocks of size 1024. 1439132 blocks available
smb: \> ls test
. D 0 Mon Mar 27 10:41:13 2017
.. D 0 Tue Apr 4 12:11:05 2017
.DS_Store H 6148 Mon Mar 27 10:51:42 2017
AAA D 0 Mon Mar 27 10:52:22 2017
9418752 blocks of size 1024. 1439124 blocks available
(test is a dfs link)
In server log:
[2017/04/06 10:29:08.829042, 3] ../source3/smbd/trans2.c:2618(call_trans2findfirst)
call_trans2findfirst: dirtype = 16, maxentries = 1366, close_after_first=0, close_if_end = 1 requires_resume_key = 1 backup_priv = 0 level = 0x104, max_data_bytes = 65535
[2017/04/06 10:29:08.829135, 5] ../source3/smbd/filename.c:443(unix_convert)
unix_convert called on file "*"
[2017/04/06 10:29:08.829207, 3] ../source3/smbd/error.c:82(error_packet_set)
NT error packet at ../source3/smbd/trans2.c(2702) cmd=50 (SMBtrans2) NT_STATUS_OBJECT_NAME_INVALID