On Tue, 2007-06-12 at 10:34 -0500, Serge E. Hallyn wrote: > Quoting Stephen Smalley (sds@xxxxxxxxxxxxx): [...] > > > > If we added support for named type transitions to SELinux, as proposed > > earlier by Kyle Moffett during this discussion, wouldn't that address > > that issue without needing a DTE-like approach? The concept is to add > > Haven't read his message, but based on what you laid out here sure, that > sounds good. It still, like my dte approach, might have some trouble > with the wildcard/regex rules AA allows. And while it might perfectly > reproduce my original DTE behavior, I don't think it does what AA wants > on bind mounts. (Whether what AA wants for bind mounts makes sense I'm > still not convinced, especially with user mounts coming soon (or already > here?), but I'm staying out of that discussion for now) > > > the last component name as a further input to the labeling decision for > > new files, in addition to the existing use of the creating process' > > label, the parent directory label, and the kind of file. Then, you > > could have something like: > > type_transition <domain> var_log_hosts_t:file "messages" messages_t; > > > > The last component name is already available, so that doesn't require > > any changes to LSM, and it would be a straightforward extension of > > SELinux to support the above - it doesn't change the model at all, just > > adds a further input to the new file labeling logic. > > And eliminates the need for restorecond? > Unlikely in the short term - restorecond is also used to reset contexts on critical files in /etc that might loose the context because tools used to update them are not correctly preserving contexts (e.g., /etc/mtab, etc/resolv.conf). Actually - this whole notion restorecond as a critical component of SELinux because of a "new file problem" is pretty overblown. The default config file ships with: /etc/resolv.conf /etc/samba/secrets.tdb /etc/mtab /var/run/utmp /var/log/wtmp ~/public_html ~/.mozilla/plugins/libflashplayer.so So the only things that would be helped by type_transition rules with a name component would be public_html and libflashplayer.so. Karl - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
