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Add context=default option to file module

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This adjusts behavior of file module such that removal of se* option
does not revert the file's selinux context to the default.  In order to
go back to the default context according to the policy, you can use the
context=default option.
This commit is contained in:
Stephen Fromm 2012-04-21 23:27:34 -07:00
parent e3967af656
commit be58995278
1 changed files with 24 additions and 21 deletions
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45
library/file
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@ -72,6 +72,21 @@ def add_path_info(kwargs):
kwargs['state'] = 'absent'
return kwargs
# If selinux fails to find a default, return an array of None
def selinux_default_context(path, mode=0):
context = [None, None, None, None]
if not HAVE_SELINUX:
return context
try:
ret = selinux.matchpathcon(path, mode)
except OSError:
return context
if ret[0] == -1:
return context
context = ret[1].split(':')
debug("got default secontext=%s" % ret[1])
return context
# ===========================================
argfile = sys.argv[1]
@ -107,8 +122,16 @@ seuser = params.get('seuser', None)
serole = params.get('serole', None)
setype = params.get('setype', None)
selevel = params.get('serange', 's0')
context = params.get('context', None)
secontext = [seuser, serole, setype, selevel]
if context is not None:
if context != 'default':
fail_json(msg='invalid context: %s' % context)
if seuser is not None or serole is not None or setype is not None:
fail_json(msg='cannot define context=default and seuser, serole or setype')
secontext = selinux_default_context(path)
if state not in [ 'file', 'directory', 'link', 'absent']:
fail_json(msg='invalid state: %s' % state)
@ -148,34 +171,14 @@ def selinux_context(path):
debug("got current secontext=%s" % ret[1])
return context
# If selinux fails to find a default, return an array of None
def selinux_default_context(path, mode=0):
context = [None, None, None, None]
print >>sys.stderr, path
if not HAVE_SELINUX:
return context
try:
ret = selinux.matchpathcon(path, mode)
except OSError:
return context
if ret[0] == -1:
return context
context = ret[1].split(':')
debug("got default secontext=%s" % ret[1])
return context
def set_context_if_different(path, context, changed):
if not HAVE_SELINUX:
return changed
cur_context = selinux_context(path)
new_context = selinux_default_context(path)
new_context = list(cur_context)
for i in range(len(context)):
if context[i] is not None and context[i] != cur_context[i]:
debug('new context was %s' % new_context[i])
new_context[i] = context[i]
debug('new context is %s' % new_context[i])
elif new_context[i] is None:
new_context[i] = cur_context[i]
debug("current secontext is %s" % ':'.join(cur_context))
debug("new secontext is %s" % ':'.join(new_context))
if cur_context != new_context: