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parser: add some new dfa dump options.

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The dfa goes through several stages during the build. Allow dumping it
at the various stages instead of only at the end.

Signed-off-by: John Johansen <john.johansen@canonical.com>
This commit is contained in:
John Johansen
2024-12-17 23:07:33 -08:00
parent 9d5b86bc9d
commit 5d2a38e816
3 changed files with 22 additions and 5 deletions
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17
parser/libapparmor_re/aare_rules.cc
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@@ -258,6 +258,9 @@ CHFA *aare_rules::create_chfa(int *min_match_len,
if (opts.dump & DUMP_DFA_UNIQ_PERMS)
dfa.dump_uniq_perms("dfa");
if (opts.dump & DUMP_DFA_STATES_INIT)
dfa.dump(cerr);
/* since we are building a chfa, use the info about
* whether the chfa supports extended perms to help
* determine whether we clear the deny info.
@@ -265,18 +268,24 @@ CHFA *aare_rules::create_chfa(int *min_match_len,
* information supported by the backed
*/
if (!extended_perms ||
((opts.control & CONTROL_DFA_FILTER_DENY)))
((opts.control & CONTROL_DFA_FILTER_DENY))) {
dfa.apply_and_clear_deny();
if (opts.dump & DUMP_DFA_STATES_POST_FILTER)
dfa.dump(cerr);
}
if (opts.control & CONTROL_DFA_MINIMIZE) {
dfa.minimize(opts);
if (opts.dump & DUMP_DFA_MIN_UNIQ_PERMS)
dfa.dump_uniq_perms("minimized dfa");
if (opts.dump & DUMP_DFA_STATES_POST_MINIMIZE)
dfa.dump(cerr);
}
if (opts.control & CONTROL_DFA_REMOVE_UNREACHABLE)
if (opts.control & CONTROL_DFA_REMOVE_UNREACHABLE) {
dfa.remove_unreachable(opts);
if (opts.dump & DUMP_DFA_STATES_POST_UNREACHABLE)
dfa.dump(cerr);
}
if (opts.dump & DUMP_DFA_STATES)
dfa.dump(cerr);