Quoting Mimi Zohar ([email protected]): > On Mon, 2015-02-02 at 18:08 +0000, Serge Hallyn wrote: > > Quoting Casey Schaufler ([email protected]): > > > I'm game to participate in such an effort. The POSIX scheme > > > is workable, but given that it's 20 years old and hasn't > > > developed real traction it's hard to call it successful. > > > > Over the years we've several times discussed possible reasons for this > > and how to help. I personally think it's two things: 1. lack of > > toolchain and fs support. The fact that we cannot to this day enable > > ping using capabilities by default because of cpio, tar and non-xattr > > filesystems is disheartening. > > We're working on resolving the CPIO issue.
Awesome, thanks for that :) > tar currently supports > xattrs. yes, I guess what i was thinking of was a (recent) bug to do with one of the longer term support older systems. Problem is people want to run new releases in containers on older systems :) Anyway when I said "over the years", the first was I believe in 2009/2010, the last was in 2013 (at that LSS, when Ted mentioned it); so yeah things have gotten better with respect to this. But AFAIK we don't yet have any good ideas for tackling the second issue below. > At this point, how many non-xattr filesystems are there really? > > Mimi > > > 2. It's hard for users and applications > > to know what caps they need. yes the API is a bear to use, but we can > > hide that behind fancier libraries. But using capabilities requires too > > much in-depth knowledge of precisely what caps you might need for > > whatever operations library may now do when you asked for something. > > -- > > To unsubscribe from this list: send the line "unsubscribe > > linux-security-module" in > > the body of a message to [email protected] > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to [email protected] > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
