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core: verify kernel property when its modified

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Do not assume that frontend have verified that setting.
This commit is contained in:
Marek Marczykowski-Górecki 2014-05-12 19:45:30 +02:00
parent 09348e86e5
commit 86bae8d276
1 changed files with 19 additions and 0 deletions
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19
core-modules/000QubesVm.py
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@ -135,6 +135,7 @@ class QubesVm(object):
"uses_default_kernel": { "default": True, 'order': 30 },
"uses_default_kernelopts": { "default": True, 'order': 30 },
"kernel": {
"attr": "_kernel",
"default": None,
"order": 31,
"func": lambda value: self._collection.get_default_kernel() if
@ -452,6 +453,24 @@ class QubesVm(object):
def mac(self, new_mac):
self._mac = new_mac
@property
def kernel(self):
return self._kernel
@kernel.setter
def kernel(self, new_value):
if new_value is not None:
if not os.path.exists(os.path.join(system_path[
'qubes_kernels_base_dir'], new_value)):
raise QubesException("Kernel '%s' not installed" % new_value)
for f in ('vmlinuz', 'modules.img'):
if not os.path.exists(os.path.join(
system_path['qubes_kernels_base_dir'], new_value, f)):
raise QubesException(
"Kernel '%s' not properly installed: missing %s "
"file" % (new_value, f))
self._kernel = new_value
@property
def updateable(self):
return self.template is None