472 lines
20 KiB
Python
472 lines
20 KiB
Python
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#! /usr/bin/python -Es
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# Copyright (C) 2012 Red Hat
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# AUTHOR: Dan Walsh <dwalsh@redhat.com>
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# see file 'COPYING' for use and warranty information
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#
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# semanage is a tool for managing SELinux configuration files
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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 os, sys
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from sepolicy import get_os_version
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import argparse
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import gettext
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PROGNAME="policycoreutils"
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gettext.bindtextdomain(PROGNAME, "/usr/share/locale")
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gettext.textdomain(PROGNAME)
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try:
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gettext.install(PROGNAME,
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localedir="/usr/share/locale",
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unicode=False,
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codeset = 'utf-8')
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except IOError:
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import __builtin__
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__builtin__.__dict__['_'] = unicode
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class CheckPath(argparse.Action):
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def __call__(self, parser, namespace, values, option_string=None):
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if not os.path.exists(values):
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raise ValueError("%s does not exist" % values)
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setattr(namespace, self.dest, values)
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class CheckType(argparse.Action):
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def __call__(self, parser, namespace, values, option_string=None):
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from sepolicy.network import domains
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if isinstance(values,str):
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setattr(namespace, self.dest, values)
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else:
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newval = getattr(namespace, self.dest)
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if not newval:
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newval = []
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for v in values:
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newval.append(v)
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setattr(namespace, self.dest, newval)
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class CheckDomain(argparse.Action):
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def __call__(self, parser, namespace, values, option_string=None):
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from sepolicy.network import domains
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if isinstance(values,str):
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if values not in domains:
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raise ValueError("%s must be an SELinux process domain:\nValid domains: %s" % (values, ", ".join(domains)))
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setattr(namespace, self.dest, values)
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else:
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newval = getattr(namespace, self.dest)
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if not newval:
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newval = []
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for v in values:
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if v not in domains:
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raise ValueError("%s must be an SELinux process domain:\nValid domains: %s" % (v, ", ".join(domains)))
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newval.append(v)
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setattr(namespace, self.dest, newval)
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all_classes = None
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class CheckClass(argparse.Action):
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def __call__(self, parser, namespace, values, option_string=None):
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import sepolicy
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global all_classes
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if not all_classes:
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all_classes = map(lambda x: x['name'], sepolicy.info(sepolicy.TCLASS))
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if values not in all_classes:
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raise ValueError("%s must be an SELinux class:\nValid classes: %s" % (values, ", ".join(all_classes)))
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setattr(namespace, self.dest, values)
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class CheckAdmin(argparse.Action):
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def __call__(self, parser, namespace, values, option_string=None):
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from sepolicy.interface import get_admin
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newval = getattr(namespace, self.dest)
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if not newval:
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newval = []
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admins = get_admin()
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if values not in admins:
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raise ValueError("%s must be an SELinux admin domain:\nValid admin domains: %s" % (values, ", ".join(admins)))
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newval.append(values)
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setattr(namespace, self.dest, newval)
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class CheckPort(argparse.Action):
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def __call__(self, parser, namespace, values, option_string=None):
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newval = getattr(namespace, self.dest)
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if not newval:
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newval = []
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for v in values:
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if v < 1 or v > 65536:
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raise ValueError("%s must be an integer between 1 and 65536" % v)
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newval.append(v)
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setattr(namespace, self.dest, newval)
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class CheckPortType(argparse.Action):
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def __call__(self, parser, namespace, values, option_string=None):
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from sepolicy.network import port_types
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newval = getattr(namespace, self.dest)
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if not newval:
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newval = []
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for v in values:
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if v not in port_types:
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raise ValueError("%s must be an SELinux port type:\nValid port types: %s" % (v, ", ".join(port_types)))
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newval.append(v)
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setattr(namespace, self.dest, values)
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class LoadPolicy(argparse.Action):
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def __call__(self, parser, namespace, values, option_string=None):
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import sepolicy
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sepolicy.policy(values)
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setattr(namespace, self.dest, values)
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class CheckPolicyType(argparse.Action):
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def __call__(self, parser, namespace, values, option_string=None):
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from sepolicy.generate import get_poltype_desc, poltype
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if values not in poltype.keys():
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raise ValueError("%s invalid SELinux policy type\n%s" % (values, get_poltype_desc()))
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newval.append(v)
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setattr(namespace, self.dest, values)
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class CheckUser(argparse.Action):
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def __call__(self, parser, namespace, value, option_string=None):
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from sepolicy import get_all_users
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newval = getattr(namespace, self.dest)
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if not newval:
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newval = []
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users = get_all_users()
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if value not in users:
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raise ValueError("%s must be an SELinux user:\nValid users: %s" % (value, ", ".join(users)))
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newval.append(value)
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setattr(namespace, self.dest, newval)
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def _print_net(src, protocol, perm):
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from sepolicy.network import get_network_connect
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portdict = get_network_connect(src, protocol, perm)
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if len(portdict) > 0:
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print "%s: %s %s" % (src, protocol, perm)
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for p in portdict:
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for recs in portdict[p]:
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print "\t" + recs
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def network(args):
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from sepolicy.network import portrecsbynum, portrecs, get_network_connect
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if args.list_ports:
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all_ports = []
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for i in portrecs:
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if i[0] not in all_ports:
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all_ports.append(i[0])
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all_ports.sort()
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print "\n".join(all_ports)
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if args.port:
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for port in args.port:
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found = False
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for i in portrecsbynum:
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if i[0] <= port and port <= i[1]:
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if i[0] == i[1]:
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range = i[0]
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else:
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range = "%s-%s" % (i[0], i[1])
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found = True
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print "%d: %s %s %s" % (port, i[2], portrecsbynum[i][0], range)
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if not found:
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if port < 500:
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print "Undefined reserved port type"
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else:
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print "Undefined port type"
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if args.type:
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for t in args.type:
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if (t,'tcp') in portrecs.keys():
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print "%s: tcp: %s" % (t, ",".join(portrecs[t,'tcp']))
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if (t,'udp') in portrecs.keys():
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print "%s: udp: %s" % (t, ",".join(portrecs[t,'udp']))
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if args.domain:
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for d in args.domain:
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_print_net(d, "tcp", "name_connect")
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for net in ("tcp", "udp"):
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_print_net(d, net, "name_bind")
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def manpage(args):
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from sepolicy.manpage import ManPage, HTMLManPages, manpage_domains, manpage_roles, gen_domains
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path = args.path
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if args.policy:
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for f in ( "policy.xml", "file_context", "file_context.homedirs"):
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if not os.path.exists(path + f):
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raise ValueError("manpage creation with alternate policy requires the %s file exist" % (path + f))
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if args.all:
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test_domains = gen_domains()
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else:
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test_domains = args.domain
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for domain in test_domains:
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m = ManPage(domain, path, args.web)
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print m.get_man_page_path()
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if args.web:
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HTMLManPages(manpage_roles, manpage_domains, path, args.os)
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def gen_manpage_args(parser):
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man = parser.add_parser("manpage",
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help=_('Generate SELinux man pages'))
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man.add_argument("-p", "--path", dest="path", default="/tmp",
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help=_("path in which the generated SELinux man pages will be stored"))
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man.add_argument("-o", "--os", dest="os", default=get_os_version(),
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help=_("name of the OS for man pages"))
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man.add_argument("-w", "--web", dest="web", default=False, action="store_true",
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help=_("Generate HTML man pages structure for selected SELinux man page"))
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group = man.add_mutually_exclusive_group(required=True)
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group.add_argument("-a", "--all", dest="all", default=False,
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action="store_true",
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help=_("All domains"))
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group.add_argument("-d", "--domain", nargs="+",
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action=CheckDomain,
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help=_("Domain name(s) of man pages to be created"))
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man.set_defaults(func=manpage)
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def gen_network_args(parser):
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net = parser.add_parser("network",
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help=_('Query SELinux policy network information'))
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group = net.add_mutually_exclusive_group(required=True)
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group.add_argument("-l", "--list", dest="list_ports",
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action="store_true",
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help=_("list all SELinux port types"))
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group.add_argument("-p", "--port", dest="port", default=None,
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action=CheckPort, nargs="+", type=int,
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help=_("show SELinux type related to the port"))
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group.add_argument("-t", "--type", dest="type", default=None,
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action=CheckPortType,nargs="+",
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help=_("Show ports defined for this SELinux type"))
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group.add_argument("-d", "--domain", dest="domain", default=None,
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action=CheckDomain, nargs="+",
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help=_("show ports to which this domain can bind and/or connect"))
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net.set_defaults(func=network)
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def communicate(args):
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from sepolicy.communicate import get_types
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writable = get_types(args.source, args.tclass, args.sourceaccess.split(","))
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readable = get_types(args.target, args.tclass, args.targetaccess.split(","))
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out = list(set(writable) & set(readable))
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for t in out:
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print t
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def gen_communicate_args(parser):
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comm = parser.add_parser("communicate",
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help=_('query SELinux policy to see if domains can communicate with each other'))
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comm.add_argument("-s", "--source", dest="source",
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action=CheckDomain, required=True,
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help=_("Source Domain"))
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comm.add_argument("-t", "--target", dest="target",
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action=CheckDomain, required=True,
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help=_("Target Domain"))
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comm.add_argument("-c", "--class", required=False, dest="tclass",
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action=CheckClass,
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default="file", help="class to use for communications, Default 'file'")
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comm.add_argument("-S", "--sourceaccess", required=False, dest="sourceaccess", default="open,write", help="comma separate list of permissions for the source type to use, Default 'open,write'")
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comm.add_argument("-T", "--targetaccess", required=False, dest="targetaccess", default="open,read", help="comma separated list of permissions for the target type to use, Default 'open,read'")
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comm.set_defaults(func=communicate)
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def booleans(args):
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import selinux
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from sepolicy import boolean_desc
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if args.all:
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rc, args.booleans = selinux.security_get_boolean_names()
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args.booleans.sort()
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for b in args.booleans:
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print "%s=_(\"%s\")" % (b, boolean_desc(b))
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def gen_booleans_args(parser):
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bools = parser.add_parser("booleans",
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help=_('query SELinux Policy to see description of booleans'))
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group = bools.add_mutually_exclusive_group(required=True)
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group.add_argument("-a", "--all", dest="all", default=False,
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action="store_true",
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help=_("get all booleans descriptions"))
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group.add_argument("-b", "--boolean", dest="booleans", nargs="+",
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help=_("boolean to get description"))
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bools.set_defaults(func=booleans)
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def transition(args):
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from sepolicy.transition import setrans
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mytrans = setrans(args.source, args.target)
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mytrans.output()
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def gen_transition_args(parser):
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trans = parser.add_parser("transition",
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help=_('query SELinux Policy to see how a source process domain can transition to the target process domain'))
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trans.add_argument("-s", "--source", dest="source",
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action=CheckDomain, required=True,
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help=_("source process domain"))
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trans.add_argument("-t", "--target", dest="target",
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action=CheckDomain,
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help=_("target process domain"))
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trans.set_defaults(func=transition)
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def interface(args):
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from sepolicy.interface import get_admin, get, get_user
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if args.list_admin:
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for a in get_admin():
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print a
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if args.list_user:
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for a in get_user():
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print a
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if args.list:
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for m in get():
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print m
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def generate(args):
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from sepolicy.generate import policy, USERS, SANDBOX, APPLICATIONS, NEWTYPE
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cmd = None
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if args.policytype not in USERS + [ SANDBOX, NEWTYPE]:
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if not args.command:
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raise ValueError(_("Command required for this type of policy"))
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cmd = os.path.realpath(args.command)
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if not args.name:
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args.name = os.path.basename(cmd).replace("-","_")
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mypolicy = policy(args.name, args.policytype)
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if cmd:
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mypolicy.set_program(cmd)
|
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|
|
|
||
|
|
if args.types:
|
||
|
|
mypolicy.set_types(args.types)
|
||
|
|
|
||
|
|
for p in args.writepaths:
|
||
|
|
if os.path.isdir(p):
|
||
|
|
mypolicy.add_dir(p)
|
||
|
|
else:
|
||
|
|
mypolicy.add_file(p)
|
||
|
|
|
||
|
|
mypolicy.set_transition_users(args.user)
|
||
|
|
mypolicy.set_admin_domains(args.admin_domain)
|
||
|
|
mypolicy.set_existing_domains(args.domain)
|
||
|
|
|
||
|
|
if args.policytype in APPLICATIONS:
|
||
|
|
mypolicy.gen_writeable()
|
||
|
|
mypolicy.gen_symbols()
|
||
|
|
print mypolicy.generate(args.path)
|
||
|
|
|
||
|
|
def gen_interface_args(parser):
|
||
|
|
itf = parser.add_parser("interface",
|
||
|
|
help=_('List SELinux Policy interfaces'))
|
||
|
|
group = itf.add_mutually_exclusive_group(required=True)
|
||
|
|
group.add_argument("-a", "--list_admin", dest="list_admin",action="store_true", default=False,
|
||
|
|
help="List all domains with admin interface")
|
||
|
|
group.add_argument("-u", "--list_user", dest="list_user",action="store_true",
|
||
|
|
default=False,
|
||
|
|
help="List all domains with SELinux user role interface")
|
||
|
|
group.add_argument("-l", "--list", dest="list",action="store_true",
|
||
|
|
default=False,
|
||
|
|
help="List all interfaces")
|
||
|
|
itf.set_defaults(func=interface)
|
||
|
|
|
||
|
|
def gen_generate_args(parser):
|
||
|
|
from sepolicy.generate import DAEMON, get_poltype_desc, poltype, DAEMON, DBUS, INETD, CGI, SANDBOX, USER, EUSER, TUSER, XUSER, LUSER, AUSER, RUSER, NEWTYPE
|
||
|
|
pol = parser.add_parser("generate",
|
||
|
|
help=_('Generate SELinux Policy module template'))
|
||
|
|
pol.add_argument("-d", "--domain", dest="domain", default=[],
|
||
|
|
action=CheckDomain, nargs="*",
|
||
|
|
help=_("Enter domain type which you will be extending"))
|
||
|
|
pol.add_argument("-u", "--user", dest="user", default=[],
|
||
|
|
action=CheckUser,
|
||
|
|
help=_("Enter SELinux user(s) which will transition to this domain"))
|
||
|
|
pol.add_argument("-a", "--admin", dest="admin_domain",default=[],
|
||
|
|
action=CheckAdmin,
|
||
|
|
help=_("Enter domain(s) that this confined admin will administrate"))
|
||
|
|
pol.add_argument("-n", "--name", dest="name",
|
||
|
|
default=None,
|
||
|
|
help=_("name of policy to generate"))
|
||
|
|
pol.add_argument("-T", "--test", dest="test", default=False, action="store_true",
|
||
|
|
help=argparse.SUPPRESS)
|
||
|
|
pol.add_argument("-t", "--type", dest="types", default=[], nargs="*",
|
||
|
|
action=CheckType,
|
||
|
|
help=argparse.SUPPRESS)
|
||
|
|
pol.add_argument("-p", "--path", dest="path", default=os.getcwd(),
|
||
|
|
help=_("path in which the generated policy files will be stored"))
|
||
|
|
pol.add_argument("-w", "--writepath", dest="writepaths", nargs="*", default = [],
|
||
|
|
help=_("path to which the confined processes will need to write"))
|
||
|
|
pol.add_argument("command",nargs="?", default=None,
|
||
|
|
help=_("executable to confine"))
|
||
|
|
group = pol.add_mutually_exclusive_group(required=False)
|
||
|
|
group.add_argument("--newtype", dest="policytype", const=NEWTYPE,
|
||
|
|
action="store_const",
|
||
|
|
help=_("Generate Policy for %s") % poltype[NEWTYPE])
|
||
|
|
group.add_argument("--admin_user", dest="policytype", const=AUSER,
|
||
|
|
action="store_const",
|
||
|
|
help=_("Generate Policy for %s") % poltype[AUSER])
|
||
|
|
group.add_argument("--application", dest="policytype", const=USER,
|
||
|
|
action="store_const",
|
||
|
|
help=_("Generate Policy for %s") % poltype[USER])
|
||
|
|
group.add_argument("--cgi", dest="policytype", const=CGI,
|
||
|
|
action="store_const",
|
||
|
|
help=_("Generate Policy for %s") % poltype[CGI])
|
||
|
|
group.add_argument("--confined_admin", dest="policytype", const=RUSER,
|
||
|
|
action="store_const",
|
||
|
|
help=_("Generate Policy for %s") % poltype[RUSER])
|
||
|
|
group.add_argument("--customize", dest="policytype", const=EUSER,
|
||
|
|
action="store_const",
|
||
|
|
help=_("Generate Policy for %s") % poltype[EUSER])
|
||
|
|
group.add_argument("--dbus", dest="policytype", const=DBUS,
|
||
|
|
action="store_const",
|
||
|
|
help=_("Generate Policy for %s") % poltype[DBUS])
|
||
|
|
group.add_argument("--desktop_user", dest="policytype", const=LUSER,
|
||
|
|
action="store_const",
|
||
|
|
help=_("Generate Policy for %s") % poltype[LUSER])
|
||
|
|
group.add_argument("--inetd", dest="policytype", const=INETD,
|
||
|
|
action="store_const",
|
||
|
|
help=_("Generate Policy for %s") % poltype[INETD])
|
||
|
|
group.add_argument("--init", dest="policytype", const=DAEMON,
|
||
|
|
action="store_const", default=DAEMON,
|
||
|
|
help=_("Generate Policy for %s") % poltype[DAEMON])
|
||
|
|
group.add_argument("--sandbox", dest="policytype", const=SANDBOX,
|
||
|
|
action="store_const",
|
||
|
|
help=_("Generate Policy for %s") % poltype[SANDBOX])
|
||
|
|
group.add_argument("--term_user", dest="policytype", const=TUSER,
|
||
|
|
action="store_const",
|
||
|
|
help=_("Generate Policy for %s") % poltype[TUSER])
|
||
|
|
group.add_argument("--x_user", dest="policytype", const=XUSER,
|
||
|
|
action="store_const",
|
||
|
|
help=_("Generate Policy for %s") % poltype[XUSER])
|
||
|
|
pol.set_defaults(func=generate)
|
||
|
|
|
||
|
|
if __name__ == '__main__':
|
||
|
|
parser = argparse.ArgumentParser(description='SELinux Policy Inspection Tool')
|
||
|
|
subparsers = parser.add_subparsers(help=_("commands"))
|
||
|
|
parser.add_argument("-P", "--policy", dest="policy",
|
||
|
|
action=LoadPolicy,
|
||
|
|
default=None, help=_("Alternate SELinux policy, defaults to /sys/fs/selinux/policy"))
|
||
|
|
gen_booleans_args(subparsers)
|
||
|
|
gen_communicate_args(subparsers)
|
||
|
|
gen_generate_args(subparsers)
|
||
|
|
gen_interface_args(subparsers)
|
||
|
|
gen_manpage_args(subparsers)
|
||
|
|
gen_network_args(subparsers)
|
||
|
|
gen_transition_args(subparsers)
|
||
|
|
|
||
|
|
try:
|
||
|
|
args = parser.parse_args()
|
||
|
|
args.func(args)
|
||
|
|
sys.exit(0)
|
||
|
|
except ValueError,e:
|
||
|
|
sys.stderr.write("%s: %s\n" % (e.__class__.__name__, str(e)))
|
||
|
|
sys.exit(1)
|
||
|
|
except KeyboardInterrupt:
|
||
|
|
sys.exit(0)
|