50 lines
1.7 KiB
Python
Executable File
50 lines
1.7 KiB
Python
Executable File
# Copyright (C) 2012 Red Hat
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# see file 'COPYING' for use and warranty information
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#
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# setrans is a tool for analyzing process transitions in SELinux policy
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of
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# the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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# 02111-1307 USA
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#
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#
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import sepolicy
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import sys
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def usage(parser, msg):
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parser.print_help()
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sys.stderr.write("\n%s\n" % msg)
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sys.stderr.flush()
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sys.exit(1)
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def expand_attribute(attribute):
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try:
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return list(next(sepolicy.info(sepolicy.ATTRIBUTE, attribute))["types"])
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except StopIteration:
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return [attribute]
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def get_types(src, tclass, perm):
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allows = sepolicy.search([sepolicy.ALLOW], {sepolicy.SOURCE: src, sepolicy.CLASS: tclass, sepolicy.PERMS: perm})
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if not allows:
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raise ValueError("The %s type is not allowed to %s any types" % (src, ",".join(perm)))
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tlist = []
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for l in map(lambda y: y[sepolicy.TARGET], filter(lambda x: set(perm).issubset(x[sepolicy.PERMS]), allows)):
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tlist = tlist + expand_attribute(l)
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return tlist
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