Date: Fri, 7 Mar 1997 08:52:18 +0100 (MET) From: Guido van Rooij <guido@gvr.win.tue.nl> To: mpp@freefall.freebsd.org (Mike Pritchard) Cc: danny@panda.hilink.com.au, freebsd-security@freebsd.org Subject: Re: 4.4BSD NFS File Handles (fwd) Message-ID: <199703070752.IAA01682@gvr.win.tue.nl> In-Reply-To: <199703070602.WAA17190@freefall.freebsd.org> from Mike Pritchard at "Mar 6, 97 10:02:49 pm"
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Mike Pritchard wrote: > Daniel O'Callaghan wrote: > > > > In addition to returning traditional information, such as the creation time, > > size, inode number and last modification time, the 4.4BSD stat(2) system > > call and related functions return a field called st_gen. The st_gen field > > is a 4 byte value which is different for each item on the filesystem. > > I've worked on other systems in the past where we only returned > st_gen if the caller was root. > > If I remember right, the last time I looked at how the kernel > assigned generation number, it didn't do a very good job > of it (they were pretty predictable). We should probaby > change them to use the random() kernel function. I also want to have the fsirand stuff. That should be enough. Perhaps it should even be built in newfs. -Guido
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