Transform octal escape sequences in mtab fields (#60122)

changelogs/fragments/mount-facts-octal-escapes.yaml

@@ -0,0 +1,2 @@
+minor_changes:
+- setup - octal escape sequences are now evaluated for mount facts pulled from /etc/mtab

lib/ansible/module_utils/facts/hardware/linux.py

@@ -79,6 +79,9 @@ class LinuxHardware(Hardware):
     # regex used against mtab content to find entries that are bind mounts
     MTAB_BIND_MOUNT_RE = re.compile(r'.*bind.*"')
 
+    # regex used for replacing octal escape sequences
+    OCTAL_ESCAPE_RE = re.compile(r'\\[0-9]{3}')
+
     def populate(self, collected_facts=None):
         hardware_facts = {}
         self.module.run_command_environ_update = {'LANG': 'C', 'LC_ALL': 'C', 'LC_NUMERIC': 'C'}
@@ -460,6 +463,14 @@ class LinuxHardware(Hardware):
             mtab_entries.append(fields)
         return mtab_entries
 
+    @staticmethod
+    def _replace_octal_escapes_helper(match):
+        # Convert to integer using base8 and then convert to character
+        return chr(int(match.group()[1:], 8))
+
+    def _replace_octal_escapes(self, value):
+        return self.OCTAL_ESCAPE_RE.sub(self._replace_octal_escapes_helper, value)
+
     def get_mount_info(self, mount, device, uuids):
 
         mount_size = get_mount_size(mount)
@@ -485,6 +496,8 @@ class LinuxHardware(Hardware):
         pool = ThreadPool(processes=min(len(mtab_entries), cpu_count()))
         maxtime = globals().get('GATHER_TIMEOUT') or timeout.DEFAULT_GATHER_TIMEOUT
         for fields in mtab_entries:
+            # Transform octal escape sequences
+            fields = [self._replace_octal_escapes(field) for field in fields]
 
             device, mount, fstype, options = fields[0], fields[1], fields[2], fields[3]
 

test/units/module_utils/facts/test_facts.py

@@ -514,7 +514,11 @@ MTAB_ENTRIES = [
         '0',
         '0'
     ],
-    ['fusectl', '/sys/fs/fuse/connections', 'fusectl', 'rw,relatime', '0', '0']]
+    ['fusectl', '/sys/fs/fuse/connections', 'fusectl', 'rw,relatime', '0', '0'],
+    # Mount path with space in the name
+    # The space is encoded as \040 since the fields in /etc/mtab are space-delimeted
+    ['/dev/sdz9', r'/mnt/foo\040bar', 'ext4', 'rw,relatime', '0', '0'],
+]
 
 BIND_MOUNTS = ['/not/a/real/bind_mount']
 
@@ -555,6 +559,11 @@ class TestFactsLinuxHardwareGetMountFacts(unittest.TestCase):
         self.assertIsInstance(mount_facts['mounts'], list)
         self.assertIsInstance(mount_facts['mounts'][0], dict)
 
+        # Find mounts with space in the mountpoint path
+        mounts_with_space = [x for x in mount_facts['mounts'] if ' ' in x['mount']]
+        self.assertEqual(len(mounts_with_space), 1)
+        self.assertEqual(mounts_with_space[0]['mount'], '/mnt/foo bar')
+
     @patch('ansible.module_utils.facts.hardware.linux.get_file_content', return_value=MTAB)
     def test_get_mtab_entries(self, mock_get_file_content):