Implement support for luks-encrypted files

2 files changed, 15 insertions, 0 deletions

diff --git a/cmount.py b/cmount.py
index 341b5a0..edbacc3 100755
--- a/cmount.py
+++ b/cmount.py
@@ -20,6 +20,12 @@ def main():
             config_dict = json.load(fp)
         cstm_error = 'Invalid / nonexistent mapping: {0}'.format(sys.argv[1])
         data = config_dict[sys.argv[1]]
+        if data.get('type') == 'efile':
+            cstm_error = 'Unable to create loop device'
+            data['device'] = subprocess.check_output(['/usr/sbin/losetup',
+                                                      '--find',
+                                                      '--show',
+                                                      data['device']]).strip()
         cstm_error = 'system() error'
         subprocess.check_call(['/sbin/cryptsetup',
                                'luksOpen',
diff --git a/cumount.py b/cumount.py
index ad9f681..16aa2f3 100755
--- a/cumount.py
+++ b/cumount.py
@@ -25,6 +25,15 @@ def main():
         subprocess.check_call(['/sbin/cryptsetup',
                                'luksClose',
                                data['mapper_name']])
+        if data.get('type') == 'efile':
+            cstm_error = 'Unable to destroy loop device'
+            loop_device = subprocess.check_output(['/usr/sbin/losetup',
+                                                   '--associated',
+                                                   data['device']])
+            loop_device = loop_device.split(':')[0]
+            subprocess.check_call(['/usr/sbin/losetup',
+                                   '-d',
+                                   loop_device])
     except subprocess.CalledProcessError as e:
         sys.stderr.write('Execution error: {0}\n'.format(e))
         sys.stderr.flush()