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MountRule: check for unknown fstype and options

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... now that the previous commits fixed issues that ended up as unknown
keywords.

Also add mount/ok_12.sd as known-failing test. It uses fstype=AARE which
MountRule doesn't support (yet?).
This commit is contained in:
Christian Boltz
2024-03-03 16:01:40 +01:00
parent 8d21f01924
commit 8f4073ecd9
3 changed files with 15 additions and 0 deletions
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4
utils/apparmor/rule/mount.py
View File

@@ -94,9 +94,13 @@ class MountRule(BaseRule):
self.operation = operation
self.fstype, self.all_fstype, unknown_items = check_and_split_list(fstype[1] if fstype != self.ALL else fstype, valid_fs, self.ALL, type(self).__name__, 'fstype')
if unknown_items:
raise AppArmorException(_('Passed unknown fstype keyword to %s: %s') % (type(self).__name__, ' '.join(unknown_items)))
self.is_fstype_equal = fstype[0] if not self.all_fstype else None
self.options, self.all_options, unknown_items = check_and_split_list(options[1] if options != self.ALL else options, flags_keywords, self.ALL, type(self).__name__, 'options')
if unknown_items:
raise AppArmorException(_('Passed unknown options keyword to %s: %s') % (type(self).__name__, ' '.join(unknown_items)))
self.is_options_equal = options[0] if not self.all_options else None
if source != self.ALL and source[0].isalpha():

8
utils/test/test-mount.py
View File

@@ -96,10 +96,18 @@ class MountTestParseInvalid(AATest):
with self.assertRaises(AppArmorBug):
MountRule('mount', ('ext3', 'ext4'), MountRule.ALL, MountRule.ALL, MountRule.ALL) # fstype[0] should be '=' or 'in'
def test_diff_invalid_fstype_keyword(self):
with self.assertRaises(AppArmorException):
MountRule('mount', ('=', 'invalidfs'), MountRule.ALL, MountRule.ALL, MountRule.ALL) # fstype[0] should be '=' or 'in'
def test_diff_invalid_options_equals_or_in(self):
with self.assertRaises(AppArmorBug):
MountRule('mount', MountRule.ALL, ('rbind', 'rw'), MountRule.ALL, MountRule.ALL) # fstype[0] should be '=' or 'in'
def test_diff_invalid_options_keyword(self):
with self.assertRaises(AppArmorException):
MountRule('mount', MountRule.ALL, ('=', 'invalid'), MountRule.ALL, MountRule.ALL) # fstype[0] should be '=' or 'in'
def test_diff_fstype(self):
obj1 = MountRule('mount',("=", 'ext4'), MountRule.ALL, MountRule.ALL, MountRule.ALL)
obj2 = MountRule('mount',MountRule.ALL, MountRule.ALL, MountRule.ALL, MountRule.ALL)

3
utils/test/test-parser-simple-tests.py
View File

@@ -324,6 +324,9 @@ unknown_line = (
'bare_include_tests/ok_85.sd',
'bare_include_tests/ok_86.sd',
# mount with fstype using AARE
'mount/ok_12.sd',
# Mount with flags in {remount, [r]unbindable, [r]shared, [r]private, [r]slave} does not support a source
'mount/ok_opt_68.sd',
'mount/ok_opt_69.sd',