judge: add startup message for landlock

dmoj/citest.py

@@ -6,12 +6,18 @@
 
 from dmoj import judgeenv
 from dmoj.contrib import load_contrib_modules
+from dmoj.cptbox import has_landlock
 from dmoj.executors import executors
 from dmoj.testsuite import Tester
 from dmoj.utils.ansi import print_ansi
 
 
 def ci_test(executors_to_test, overrides, allow_fail=frozenset()):
+    if has_landlock():
+        print('Running CI with landlock and seccomp...')
+    else:
+        print('Running CI with just seccomp...')
+
     result = {}
     failed = False
     failed_executors = []

dmoj/cptbox/__init__.py

@@ -6,6 +6,7 @@
     PTBOX_ABI_X32,
     PTBOX_ABI_X64,
     PTBOX_ABI_X86,
+    has_landlock,
 )
 from dmoj.cptbox.handlers import ALLOW, DISALLOW
 from dmoj.cptbox.isolate import FilesystemSyscallKind, IsolateTracer

dmoj/judge.py

@@ -14,6 +14,7 @@
 
 from dmoj import packet
 from dmoj.control import JudgeControlRequestHandler
+from dmoj.cptbox import has_landlock
 from dmoj.error import CompileError
 from dmoj.judgeenv import clear_problem_dirs_cache, env, get_supported_problems_and_mtimes, startup_warnings
 from dmoj.monitor import Monitor
@@ -592,7 +593,10 @@ def main():  # pragma: no cover
     executors.load_executors()
     contrib.load_contrib_modules()
 
-    print('Running live judge...')
+    if has_landlock():
+        print('Running live judge with landlock and seccomp...')
+    else:
+        print('Running live judge with just seccomp...')
 
     for warning in judgeenv.startup_warnings:
         print_ansi('#ansi[Warning: %s](yellow)' % warning)