On Wed, Jun 15, 2011 at 4:44 PM, Stephen Smalley <sds(a)tycho.nsa.gov> wrote:
Ways to improve the situation for systemd would include:
- Only load a subset of file_contexts entries, similar to udev.
- Only load the file contexts entries temporarily, using selabel_open +
selabel_close to bracket entire blocks where files are created or
relabeled.
- At policy build time, precompute a DFA for all of the regexps, and
store it in a file. This file could be mmap()ed into any user of the
policy, requiring no malloc(), and allowing the kernel to free the
memory when it is no longer used; this should also make loading of the
file_contexts configuration faster.
Mirek