Hi list,
i have a problem mounting shares on a single client with diffrent usernames. if
any user on the client gives a wrong password all existing cifs mounts are
closed by the server.
Since this problem occured in a productive environment i set up a testing env
and tried to keep it as easy as can be:
Servername: serverA
Servicename1: home1
Servicename2: home2
Clientname: clientA
Username1: tom
Username2: max
Linux Distribution (Server+Client): Red Hat Enterprise Linux Server release 5.3
(Tikanga)
Kernel (Server+Client): 2.6.18-128.1.10.el5 (also tested on: 2.6.26-2 and
2.6.18-92.1.18.el5)
Samba version: 3.0.33-3.7.el5 (also tested on: 3.2.5)
cifs module version: 1.54RH (also tested on: 1.53 and 1.50cRH)
I can reproduce this issue on Debian, SuSE and Redhat Linux. (these are the
ones i've tested)
Here is what the users do:
.) ssh r...@clienta
.) mount -t cifs -o user=tom //serverA/home1 /mnt/1/
#users gives correct password and home1 gets mounted just fine
.) mount -t cifs -o user=max //tofo1/home2 /mnt/2
#user gives correct password and home2 gets mounted just fine
#but if user max gives a wrong password all existing connections are
closed by the server
screendump of the above sequence:
###
[r...@clienta ~]# df -ha
FilesystemSize Used Avail Use% Mounted on
/dev/sda1 7.6G 2.4G 4.8G 34% /
proc 0 0 0 - /proc
sysfs0 0 0 - /sys
devpts 0 0 0 - /dev/pts
tmpfs 125M 0 125M 0% /dev/shm
none 0 0 0 - /proc/sys/fs/binfmt_misc
sunrpc 0 0 0 - /var/lib/nfs/rpc_pipefs
[r...@clienta ~]# mount -t cifs -o user=tom //serverA/home1 /mnt/1/
Password: #correct password given
[r...@clienta ~]# df -ha
FilesystemSize Used Avail Use% Mounted on
/dev/sda1 7.6G 2.4G 4.8G 34% /
proc 0 0 0 - /proc
sysfs0 0 0 - /sys
devpts 0 0 0 - /dev/pts
tmpfs 125M 0 125M 0% /dev/shm
none 0 0 0 - /proc/sys/fs/binfmt_misc
sunrpc 0 0 0 - /var/lib/nfs/rpc_pipefs
//serverA/home1 7.6G 2.5G 4.8G 35% /mnt/1
r...@clienta ~]# mount -t cifs -o user=max //serverA/home2 /mnt/2
Password: #wrong password given
mount error 13 = Permission denied
Refer to the mount.cifs(8) manual page (e.g.man mount.cifs)
[r...@clienta ~]# df -ha
FilesystemSize Used Avail Use% Mounted on
/dev/sda1 7.6G 2.4G 4.8G 34% /
proc 0 0 0 - /proc
sysfs0 0 0 - /sys
devpts 0 0 0 - /dev/pts
tmpfs 125M 0 125M 0% /dev/shm
none 0 0 0 - /proc/sys/fs/binfmt_misc
sunrpc 0 0 0 - /var/lib/nfs/rpc_pipefs
//serverA/home1 0.0K 0.0K 0.0K - /mnt/1
[r...@clienta ~]# stat /mnt/1
stat: cannot stat `/mnt/1': Input/output error
[r...@clienta ~]#
#
#/etc/samba/smb.conf
[global]
workgroup = MYGROUP
server string = Samba Server Version %v
log file = /var/log/samba/tst.log
log level = 3
security = user
passdb backend = tdbsam
[home1]
comment = Public Stuff
path = /home/1
write list = tom max hugo
browsable = yes
[home2]
comment = Public Stuff
path = /home/2
write list = tom max hugo
browsable = yes
#/var/log/samba/tst.log
[2009/06/03 14:37:02, 2] auth/auth.c:check_ntlm_password(319)
check_ntlm_password: Authentication for user [max] - [max] FAILED with
error NT_STATUS_WRONG_PASSWORD
[2009/06/03 14:37:02, 3] smbd/error.c:error_packet_set(106)
error packet at smbd/sesssetup.c(1501) cmd=115 (SMBsesssetupX)
NT_STATUS_LOGON_FAILURE
[2009/06/03 14:37:02, 3] smbd/process.c:timeout_processing(1329)
timeout_processing: End of file from client (client has disconnected).
[2009/06/03 14:37:02, 3] smbd/sec_ctx.c:set_sec_ctx(241)
setting sec ctx (0, 0) - sec_ctx_stack_ndx = 0
[2009/06/03 14:37:02, 3] smbd/sec_ctx.c:set_sec_ctx(241)
setting sec ctx (0, 0) - sec_ctx_stack_ndx = 0
[2009/06/03 14:37:02, 1] smbd/service.c:close_cnum(1230)
192.168.0.21 (192.168.0.21) closed connection to service home1
[2009/06/03 14:37:02, 3] smbd/connection.c:yield_connection(69)
Yielding connection to home1
[2009/06/03 14:37:02, 3] smbd/sec_ctx.c:set_sec_ctx(241)
setting sec ctx (0, 0) - sec_ctx_stack_ndx = 0
[2009/06/03 14:37:02, 3] smbd/connection.c:yield_connection(69)
Yielding connection to
[2009/06/03 14:37:02, 3] smbd/server.c:exit_server_common(768)
For me this looks like as smb closes the connection to home1 gracefully. As
