new file group permission of CIFS mount


 
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Operating Systems Linux new file group permission of CIFS mount
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Old 07-04-2012
new file group permission of CIFS mount

After switching from smbfs mount, the dmask/dir_mode and fmask/file_mode no longer have an effect on the newly created files. It seems to use the system umask instead.

I need the group to have write permissions without changing the root umask on the system. Any ideas?

example fstab:

Code:
//192.168.1.23/drive /mountpoint cifs gid=users,file_mode=0660,dir_mode=0770,credentials=xxxx 0 0

existing files have 660; newly created files after mount will have 644. I need new files to have 660. smbfs did this; cifs does not. I do need to use CIFS.
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MOUNT_SMBFS(8)						    BSD System Manager's Manual 					    MOUNT_SMBFS(8)

NAME
mount_smbfs -- mount a shared resource from an SMB file server SYNOPSIS
mount_smbfs [-E cs1:cs2] [-I host] [-L locale] [-M crights:srights] [-N] [-O cowner:cgroup/sowner:sgroup] [-R retrycount] [-T timeout] [-U username] [-W workgroup] [-c case] [-d mode] [-f mode] [-g gid] [-n opt] [-u uid] //user@server[:port1[:port2]]/share node DESCRIPTION
The mount_smbfs command mounts a share from a remote server using SMB/CIFS protocol. The options are as follows: -E cs1:cs2 Specifies local (cs1) and server's (cs2) character sets. -I host Do not use NetBIOS name resolver and connect directly to host, which can be either a valid DNS name or an IP address. -L locale Use locale for lower/upper case conversion routines. Set the locale for case conversion. By default, mount_smbfs tries to use an environment variable LC_* to determine it. -M crights:srights Assign access rights to the newly created connection. -N Do not ask for a password. At run time, mount_smbfs reads the ~/.nsmbrc file for additional configuration parameters and a password. If no password is found, mount_smbfs prompts for it. -O cowner:cgroup/sowner:sgroup Assign owner/group attributes to the newly created connection. -R retrycount How many retries should be done before the SMB requester decides to drop the connection. Default is 4. -T timeout Timeout in seconds for each request. Default is 15. -U username Username to authenticate with. -W workgroup This option specifies the workgroup to be used in the authentication request. -c case Set a case option which affects name representation. case can be one of the following: Value Meaning l All existing file names are converted to lower case. Newly created file gets a lower case. u All existing file names are converted to upper case. Newly created file gets an upper case. -f mode, -d mode Specify permissions that should be assigned to files and directories. The values must be specified as octal numbers. Default value for the file mode is taken from mount point, default value for the directory mode adds execute permission where the file mode gives read permission. Note that these permissions can differ from the rights granted by SMB server. -u uid, -g gid User ID and group ID assigned to files. The default are owner and group IDs from the directory where the volume is mounted. //user@server[:port1[:port2]]/share The mount_smbfs command will use server as the NetBIOS name of remote computer, user as the remote user name and share as the resource name on a remote server. Optional port1 and port2 arguments can be used to override default values of port numbers used by communication protocols. For SMB over NetBIOS default value for port1 are 139, and port2 are 137. node Path to mount point. FILES
~/.nsmbrc Keeps static parameters for connections and other information. See /usr/share/examples/smbfs/dot.nsmbrc for details. EXAMPLES
The following example illustrates how to connect to SMB server SAMBA as user GUEST, and mount shares PUBLIC and TMP: mount_smbfs -I samba.mydomain.com //guest@samba/public /smb/public mount_smbfs -I 192.168.20.3 -E koi8-r:cp866 //guest@samba/tmp /smb/tmp It is also possible to use fstab(5) for smbfs mounts (the example below doesn't prompt for a password): //guest@samba/public /smb/public smbfs rw,noauto,-N 0 0 AUTHORS
Boris Popov <bp@butya.kz>, <bp@FreeBSD.org> BUGS
Please report bugs to the author. BSD
September 17, 2011 BSD