src: check if the system is hibernated before /image/create

Mount the system partition in readonly mode and check for the
hiberfil.sys file if the target system is a Windows.

Fail the image creation process if the target system is hibernated.

src/live/ogOperations.py

@@ -648,6 +648,16 @@ class OgLiveOperations:
         if not fstype:
             raise OgError(f'No filesystem detected in {padev}. Aborting image creation')
 
+        ro_mountpoint = padev.replace('dev', 'mnt')
+        if not mount_mkdir(padev, ro_mountpoint, readonly=True):
+            raise OgError(f'Cannot mount {ro_mountpoint} as readonly')
+
+        try:
+            if is_hibernation_enabled(ro_mountpoint):
+                raise OgError(f'Target system in {padev} has hibernation enabled')
+        finally:
+            umount(ro_mountpoint)
+
         if change_access(user=self._smb_user, pwd=self._smb_pass) == -1:
             raise OgError('remount of /opt/opengnsys/images has failed')
 

src/utils/fs.py

@@ -29,7 +29,7 @@ def find_mountpoint(path):
     return path
 
 
-def mount_mkdir(source, target):
+def mount_mkdir(source, target, readonly=False):
     """
     Mounts and creates the mountpoint directory if it's not present.
 
@@ -43,17 +43,20 @@ def mount_mkdir(source, target):
             return False
 
     if not os.path.ismount(target):
-        return mount(source, target)
+        return mount(source, target, readonly)
 
     return True
 
 
-def mount(source, target):
+def mount(source, target, readonly):
     """
     Mounts source into target directoru using mount(8).
 
     Return true if exit code is 0. False otherwise.
     """
+    if readonly:
+        cmd = f'mount -o ro {source} {target}'
+    else:
         cmd = f'mount {source} {target}'
     proc = subprocess.run(cmd.split(), stderr=DEVNULL)
 

src/utils/probe.py

@@ -178,3 +178,10 @@ def os_probe(mountpoint):
         return getwindowsversion(winreghives)
     else:
         return 'unknown'
+
+def is_hibernation_enabled(mountpoint):
+    if get_os_family(mountpoint) != OSFamily.WINDOWS:
+        return False
+
+    hiberfile_path = f'{mountpoint}/hiberfil.sys'
+    return os.path.exists(hiberfile_path)