search for: get_dfs_referral

Dear Gents, We are using libsmbclient smbc_getFunctionRead to read from a Microsoft DFS share. Before each 64k read there are a QUERY_PATH_INFO and a GET_DFS_REFERRAL which slow down the transmission. Is there a way to query these only once at the beginning of the transmission and cache it? system: 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt9-3~deb8u1 (2015-04-24) x86_64 GNU/Linux lib: libsmbclient:amd64 2:4.1.17+dfsg-2 amd64 shared librar...

...th: server client SMB Transaction2 Response QUERY_PATH_INFORMATION, Error: STATUS_PATH_NOT_COVERED client server SMB Tree Connect AndX Request, Path: \\server\IPC$ server client SMB Tree Connect AndX Response client server SMB Transaction2 Request GET_DFS_REFERRAL, File: \\server\share server client SMB Transaction2 Response GET_DFS_REFERRAL client server SMB Tree Disconnect Request server client SMB Tree Disconnect Response client server SMB Logoff AndX Request server client SMB Logoff AndX Respons...

...access has been denied." Unmapping and mapping the network drive fixes the problem, but one of the other admins in our office reports that after remapping a drive, it worked for a while, then the problem came back. Wireshark says that when the client generates this error, it's sending a GET_DFS_REFERRAL to the server, and the server is replying with a STATUS_NOT_FOUND. This sounds to me like the result of the change to "msdfs root = no" in Samba 3.0.25, but it seems that rebooting and even remapping network drives isn't necessarily fixing the problem for us. Any ideas? Josh Kelley

...204 0.12546 0.54965 0.14905 QUERY_FS_INFO 93 0.12489 0.20448 0.13657 QUERY_PATH_INFO 425 0.12507 0.36258 0.13878 QUERY_FILE_INFO 2371 0.12427 0.88422 0.13971 SET_FILE_INFO 5 0.12780 0.13102 0.12943 GET_DFS_REFERRAL 1 0.12902 0.12902 0.12902 NT Transaction Commands Calls Min RTT Max RTT Avg RTT NT IOCTL 15 0.12761 0.21489 0.14543 NT NOTIFY 37 0.12815 216.02239 45.20094 ===============================================================...

...This is something similar to the Linux directory in which dirs may be actually mount points. The issue is that when a client works with the server/share DFS it will actually use the virtual server name inside its SMBs request. Samba handles most of them correctly, but in the handling of Trans2/GET_DFS_REFERRAL it does not. In this action it actually makes sure that the server name in the request is the name of the computer running the Samba server - which causes DFS referral to fail. See frames 1172 and 1195 in the attached TCP-dump. On the other hand, for Trans2/QUERY_PATH_INFO for the same path Sam...

Hi, We have been a samba shop since way back and have used DFS quit a lot the last years. When we went with security ads instead of domain our dfs died. We have tried 3.028(sun) in solaris wich we are leaving and 3.2.1 in linux, our migration target. For our 3.2.1 installation the config looks liket this and the problem manifests itself as a empty share. [Global] kernel oplocks = False oplocks

...lt;jra at samba.org>: > On Wed, May 27, 2015 at 11:16:08PM +0200, Szilard Matyas wrote: > > Dear Gents, > > > > We are using libsmbclient smbc_getFunctionRead to read from a Microsoft > DFS > > share. Before each 64k read there are a QUERY_PATH_INFO and a > > GET_DFS_REFERRAL which slow down the transmission. Is there a way to > query > > these only once at the beginning of the transmission and cache it? > > Hmmm. This seems to be done inside : > > SMBC_read_ctx(SMBCCTX *context, > SMBCFILE *file, > void *buf, >...

...uccess (0x0) xii) /etc/init.d/iptables status Firewall is stopped. xiii)Analyze Network Traffic on SMBD port Login as TESTDOMAIN\testuser (in Windows System) 10.844796 192.168.97.5 -> 192.168.97.2 SMB Tree Connect AndX Response 10.844932 192.168.97.2 -> 192.168.97.5 SMB Trans2 Request, GET_DFS_REFERRAL, File: \192.168.97.5\global-share 10.844993 192.168.97.5 -> 192.168.97.2 SMB Trans2 Response, GET_DFS_REFERRAL, Error: STATUS_NOT_FOUND 10.849712 192.168.97.2 -> 192.168.97.5 SMB Session Setup AndX Request, NTLMSSP_NEGOTIATE 10.849800 192.168.97.5 -> 192.168.97.2 SMB Session Setup AndX...

...ed "A\B", and fails to find the server. You can see this in William Law's case: Samba tries to find a host named "ctcfsrv9.tc.cornell.edu\tc_q\users"... but that isn't even a valid internet hostname. The same thing happens in our case. Samba queries the referral: GET_DFS_REFERRAL query: File: \w92dfs1\DFS\profiles\j\jmorzins Samba gets an answer: GET_DFS_REFERRAL answer: Path: \w92dfs1\DFS\profiles\j Node: \profiler3.mit.edu\homes3$\j Samba is confused by the answer, and tries to connect to the wrong host: DNS query: Query: profiler3.mit.eduh...

...msdfs shares from Windows XP SP2, Windows 2000 and WinXP SP1 seem unaffected. I have attached the smb.conf and the exports files that define the shares. Running ethereal on the different clients seems to point to the fact that XP SP2 no longer seems to be using the netbios-ssn (139) port. for GET_DFS_REFERRAL instead its using microsoft-ds (445). I have ethereal dumps if required. Any advice would be most welcome. Many thanks Dave smb.conf # Global parameters [global] workgroup = LONDON security = DOMAIN encrypt passwords = Yes password server = bonky passwd program = /usr/bin/p...