> -----Original Message----- > From: Counihan, Tom > Sent: Wednesday, May 28, 2014 6:55 AM > To: Schaufler, Casey; [email protected] > Subject: RE: Smack and xattr relationship - raw flash > > Many thanks Casey, > I think I get it - for fs with no xattrs, I get a more coarse grained control > against all files in that filesystem, controlled identically as per the Smack > labelled on the fs itself.
That is correct. > Ubifs needs more attention on my side to see if claims match expectations. Let me know what you discover. > > -----Original Message----- > > From: Schaufler, Casey > > Sent: Wednesday, May 28, 2014 2:44 PM > > To: Counihan, Tom; [email protected] > > Subject: RE: Smack and xattr relationship - raw flash > > > > > -----Original Message----- > > > From: Dev [mailto:[email protected]] On Behalf Of > > > Counihan, Tom > > > Sent: Wednesday, May 28, 2014 3:31 AM > > > To: [email protected] > > > Subject: [Dev] Smack and xattr relationship - raw flash > > > > > > Hi Folks, > > > > > > Here: http://schaufler-ca.com/description_from_the_linux_source_tree > > > I > > > read: > > > " It requires netlabel and works best with file systems that support > > > extended attributes, although xattr support is not strictly required". > > > > > > I'm curious to learn more the scalability of Smack across filesystems. > > > The 'not strictly' statement implies a non-issue. > > > What if my device uses raw flash - will for example ubifs work with > > > Smack as comprehensively as say ext4 on a block device? > > > > Filesystems that don't support xattrs can be used with Smack, but > > files cannot be labeled individually. Instead, mount options > > (smackfsroot and > > smackfsdefault) are used to specify the Smack labels of all the files > > on the filesystem. You could construct a system using only > > single-label filesystems if you had to. > > > > I have not tried the xattr support in ubifs, but the literature claims > > that it is "much improved" as of early last year. If the xattr support > > in ubifs functions properly you will be able to use it instead of ext4. > > > > > > > > > Warm Regards > > > Tom. > > > > > > > > > INTEL > > > Automotive Solutions Division (ASD) > > > > > > Intel Shannon, > > > Brookvale Plaza, > > > East Park, > > > Shannon, > > > Co. Clare, > > > Ireland > > > > > > Tel : +353 61 477718 > > > > > > -------------------------------------------------------------- > > > Intel Shannon Limited > > > Registered in Ireland > > > Registered Office: Collinstown Industrial Park, Leixlip, County > > > Kildare Registered Number: 308263 Business address: Dromore House, > > > East Park, Shannon, Co. Clare > > > > > > This e-mail and any attachments may contain confidential material > > > for the sole use of the intended recipient(s). Any review or > > > distribution by others is strictly prohibited. If you are not the > > > intended recipient, please contact the sender and delete all copies. > > > > > > > > > _______________________________________________ > > > Dev mailing list > > > [email protected] > > > https://lists.tizen.org/listinfo/dev _______________________________________________ Dev mailing list [email protected] https://lists.tizen.org/listinfo/dev
