Add and export aa_policy_cache_dir_path_preview() which allows the
parser to know exactly where the policy cache binaries, for the
specified aa_policy_cache and aa_features objects, would be stored. This
function may be useful to preview the policy cache dir without having
sufficient permissions or desires to create a policy cache dir.
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Acked-by: John Johansen <john.johansen@canonical.com>
Add and export aa_policy_cache_dir_path() which allows the parser to
know exactly where the policy cache binaries, for the current
aa_policy_cache and aa_features objects, will be stored. The parser
previously assumed that it was <cacheloc>/cache/ but it will soon be
<cacheloc>/cache.d/<features_id>/.
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Acked-by: John Johansen <john.johansen@canonical.com>
Callers of aa_features_unref(), aa_kernel_interface_unref(), and
aa_policy_cache_unref() had to store off errno and restore it after
calling those functions in error paths. This patch preserves errno
across those *_unref() functions so that callers don't have to.
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Create a section 3 man page for the aa_policy_cache family of functions.
Additionally, update the in-code descriptions to match the descriptions
in the man page.
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Acked-by: John Johansen <john.johansen@canonical.com>
