Bug#501678: Files copied/moved to cifs filesystems get attributes changed
On Fri, Oct 10, 2008 at 10:55:53PM +0100, Chris Carr wrote: Are you sure this is happening when you move files? I see it when I copy files, but not when I move them. Yes. I have just confirmed this by moving a plain text file onto a samba share (/home/chrisc on the server mounted as /home/chrisc/MyDocs on the client). Bizarrely, I received the following error message: mv: setting permissions for `MyDocs/text.txt': Permission denied Ok, then there's a separate permissions issue in this case. ... but still the +x attribute was set! So does that mean it wasn't set by the mv command, but by the samba server? It was set via the permission mapping when the file was opened for writing. The reason for this is that 'mv' or 'cp -p' will explicitly set the file mode with fchmod(); if you run 'cp' without the '-p' option, then the mode on the new file is not copied separately, it's expected to be set by the option passed to open() which comes from the user's umask. It looks like this is somehow related to the handling of 'map archive' between client and server. If you set 'map archive = no', then the executable bit is not set. Sorry to be dim, but you mean set that in smb.conf, yes? On the server, yes. -- Steve Langasek Give me a lever long enough and a Free OS Debian Developer to set it on, and I can move the world. Ubuntu Developerhttp://www.debian.org/ [EMAIL PROTECTED] [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Bug#501678: Files copied/moved to cifs filesystems get attributes changed
tags 501678 confirmed upstream thanks On Thu, Oct 09, 2008 at 02:45:27PM +0100, Chris Carr wrote: Package: smbfs Version: 2:3.2.3-1 I'm no expert on samba/cifs but something has changed recently. I've used smbfs for mounting filesystems of other machines on my LAN for years, with no problems once permissions are all sorted out. In the past year or so I've noticed dozens of files appearing on my console in green (executable) - things like .txt files, which should never get +x. I've traced this to samba. Now, whenever I copy/move a file onto a mounted smbfs filesystem, or create a new file on such a filesystem, the file automatically gets permissions 755. Presumably the permissions of new files are controlled by a umask setting somewhere - I can't see one on the manual page of mount.cifs, so maybe it's done in the samba server config. But why would existing files have their attributes changed when they're copied or moved onto a smbfs filesystem? This seems to be a bug - surely samba should not mess with file attributes unless the user explicitly tells it to do so. Are you sure this is happening when you move files? I see it when I copy files, but not when I move them. The reason for this is that 'mv' or 'cp -p' will explicitly set the file mode with fchmod(); if you run 'cp' without the '-p' option, then the mode on the new file is not copied separately, it's expected to be set by the option passed to open() which comes from the user's umask. It looks like this is somehow related to the handling of 'map archive' between client and server. If you set 'map archive = no', then the executable bit is not set. This is only a workaround, though - it's still a bug if our POSIX client is getting the execute bit set when the user isn't asking for it. -- Steve Langasek Give me a lever long enough and a Free OS Debian Developer to set it on, and I can move the world. Ubuntu Developerhttp://www.debian.org/ [EMAIL PROTECTED] [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Bug#501678: Files copied/moved to cifs filesystems get attributes changed
On Fri, 2008-10-10 at 13:01 -0700, Steve Langasek wrote: tags 501678 confirmed upstream thanks On Thu, Oct 09, 2008 at 02:45:27PM +0100, Chris Carr wrote: Package: smbfs Version: 2:3.2.3-1 I'm no expert on samba/cifs but something has changed recently. I've used smbfs for mounting filesystems of other machines on my LAN for years, with no problems once permissions are all sorted out. In the past year or so I've noticed dozens of files appearing on my console in green (executable) - things like .txt files, which should never get +x. I've traced this to samba. Now, whenever I copy/move a file onto a mounted smbfs filesystem, or create a new file on such a filesystem, the file automatically gets permissions 755. Presumably the permissions of new files are controlled by a umask setting somewhere - I can't see one on the manual page of mount.cifs, so maybe it's done in the samba server config. But why would existing files have their attributes changed when they're copied or moved onto a smbfs filesystem? This seems to be a bug - surely samba should not mess with file attributes unless the user explicitly tells it to do so. Are you sure this is happening when you move files? I see it when I copy files, but not when I move them. Yes. I have just confirmed this by moving a plain text file onto a samba share (/home/chrisc on the server mounted as /home/chrisc/MyDocs on the client). Bizarrely, I received the following error message: mv: setting permissions for `MyDocs/text.txt': Permission denied ... but still the +x attribute was set! So does that mean it wasn't set by the mv command, but by the samba server? In case it helps, I attach the smb.conf file for the server. The reason for this is that 'mv' or 'cp -p' will explicitly set the file mode with fchmod(); if you run 'cp' without the '-p' option, then the mode on the new file is not copied separately, it's expected to be set by the option passed to open() which comes from the user's umask. It looks like this is somehow related to the handling of 'map archive' between client and server. If you set 'map archive = no', then the executable bit is not set. Sorry to be dim, but you mean set that in smb.conf, yes? This is only a workaround, though - it's still a bug if our POSIX client is getting the execute bit set when the user isn't asking for it. Thanks for the reply, Chris smb.conf.gz Description: GNU Zip compressed data
Bug#501678: Files copied/moved to cifs filesystems get attributes changed
Package: smbfs Version: 2:3.2.3-1 Hi all, I'm no expert on samba/cifs but something has changed recently. I've used smbfs for mounting filesystems of other machines on my LAN for years, with no problems once permissions are all sorted out. In the past year or so I've noticed dozens of files appearing on my console in green (executable) - things like .txt files, which should never get +x. I've traced this to samba. Now, whenever I copy/move a file onto a mounted smbfs filesystem, or create a new file on such a filesystem, the file automatically gets permissions 755. Presumably the permissions of new files are controlled by a umask setting somewhere - I can't see one on the manual page of mount.cifs, so maybe it's done in the samba server config. But why would existing files have their attributes changed when they're copied or moved onto a smbfs filesystem? This seems to be a bug - surely samba should not mess with file attributes unless the user explicitly tells it to do so. Sorry if I've missed something obvious, Chris -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
