def create_globals(module, support, debug):
global parser, lexer, m, spt
if not parser:
lexer = lex.lex()
parser = yacc.yacc(method="LALR", debug=debug, write_tables=0)
if module is not None:
m = module
else:
m = refpolicy.Module()
if not support:
spt = refpolicy.SupportMacros()
else:
spt = support
if debug:
o("parsing file %s\n" % f)
try:
fd = open(f)
txt = fd.read()
fd.close()
parse(txt, module, spt, debug)
except IOError, e:
return
except ValueError, e:
raise ValueError("error parsing file %s: %s" % (f, str(e)))
spt = None
if support_macros:
o("Parsing support macros (%s): " % support_macros)
spt = refpolicy.SupportMacros()
parse_file(support_macros, spt)
headers.children.append(spt)
# FIXME: Total hack - add in can_exec rather than parse the insanity
# of misc_macros. We are just going to preten that this is an interface
# to make the expansion work correctly.
can_exec = refpolicy.Interface("can_exec")
av = access.AccessVector([
"$1", "$2", "file", "execute_no_trans", "read", "getattr", "lock",
"execute", "ioctl"
])
can_exec.children.append(refpolicy.AVRule(av))
headers.children.append(can_exec)
