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#!/usr/bin/python -Es
#
# Copyright (C) 2012 Red Hat
# see file 'COPYING' for use and warranty information
#
# policygentool is a tool for the initial generation of SELinux policy
#
#    This program is free software; you can redistribute it and/or
#    modify it under the terms of the GNU General Public License as
#    published by the Free Software Foundation; either version 2 of
#    the License, or (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program; if not, write to the Free Software
#    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
#                                        02111-1307  USA
#
#
import re
import sys
import sepolicy
ADMIN_TRANSITION_INTERFACE = "_admin$"
USER_TRANSITION_INTERFACE = "_role$"

__all__ = ['get_all_interfaces', 'get_interfaces_from_xml', 'get_admin', 'get_user', 'get_interface_dict', 'get_interface_format_text', 'get_interface_compile_format_text', 'get_xml_file', 'interface_compile_test']

##
## I18N
##
PROGNAME = "policycoreutils"

import gettext
gettext.bindtextdomain(PROGNAME, "/usr/share/locale")
gettext.textdomain(PROGNAME)
try:
    gettext.install(PROGNAME,
                    unicode=True,
                    codeset='utf-8')
except TypeError:
    # Failover to python3 install
    gettext.install(PROGNAME,
                    localedir="/usr/share/locale",
                    codeset='utf-8')
except IOError:
    import builtins
    builtins.__dict__['_'] = unicode


def get_interfaces_from_xml(path):
    """ Get all interfaces from given xml file"""
    interfaces_list = []
    idict = get_interface_dict(path)
    for k in list(idict.keys()):
        interfaces_list.append(k)
    return interfaces_list


def get_all_interfaces(path=""):
    from sepolicy import get_methods
    all_interfaces = []
    if not path:
        all_interfaces = get_methods()
    else:
        xml_path = get_xml_file(path)
        all_interfaces = get_interfaces_from_xml(xml_path)

    return all_interfaces


def get_admin(path=""):
    """ Get all domains with an admin interface from installed policy."""
    """ If xml_path is specified, func returns an admin interface from specified xml file"""
    admin_list = []
    if path:
        try:
            xml_path = get_xml_file(path)
            idict = get_interface_dict(xml_path)
            for k in list(idict.keys()):
                if k.endswith("_admin"):
                    admin_list.append(k)
        except IOError as e:
            sys.stderr.write("%s: %s\n" % (e.__class__.__name__, str(e)))
            sys.exit(1)
    else:
        for i in sepolicy.get_methods():
            if i.endswith("_admin"):
                admin_list.append(i.split("_admin")[0])

    return admin_list


def get_user(path=""):
    """ Get all domains with SELinux user role interface"""
    """ If xml_path is specified, func returns an user role interface from specified xml file"""
    trans_list = []
    if path:
        try:
            xml_path = get_xml_file(path)
            idict = get_interface_dict(xml_path)
            for k in list(idict.keys()):
                if k.endswith("_role"):
                    if (("%s_exec_t" % k[:-5]) in sepolicy.get_all_types()):
                        trans_list.append(k)
        except IOError as e:
            sys.stderr.write("%s: %s\n" % (e.__class__.__name__, str(e)))
            sys.exit(1)
    else:
        for i in sepolicy.get_methods():
            m = re.findall("(.*)%s" % USER_TRANSITION_INTERFACE, i)
            if len(m) > 0:
                if "%s_exec_t" % m[0] in sepolicy.get_all_types():
                    trans_list.append(m[0])

    return trans_list

interface_dict = None


def get_interface_dict(path="/usr/share/selinux/devel/policy.xml"):
    global interface_dict
    import os
    import xml.etree.ElementTree
    from sepolicy import get_all_modules, get_all_modules_from_mod_lst
    if interface_dict:
        return interface_dict

    active_modules = []
    interface_dict = {}
    param_list = []

    active_modules = get_all_modules_from_mod_lst()
    if active_modules is None:
        print((_("Using only non-base modules.")))
        active_modules = get_all_modules()

    xml_path = """<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
<policy>
<layer name="admin">
"""
    xml_path += path
    xml_path += """
</layer>
</policy>
"""

    try:
        if os.path.isfile(path):
            tree = xml.etree.ElementTree.parse(path)
        else:
            tree = xml.etree.ElementTree.fromstring(xml_path)
        for l in tree.findall("layer"):
            for m in l.findall("module"):
                if m.get("name") in active_modules:
                    for i in m.getiterator('interface'):
                        for e in i.findall("param"):
                            param_list.append(e.get('name'))
                        interface_dict[(i.get("name"))] = [param_list, (i.find('summary').text), "interface"]
                        param_list = []
                    for i in m.getiterator('template'):
                        for e in i.findall("param"):
                            param_list.append(e.get('name'))
                        interface_dict[(i.get("name"))] = [param_list, (i.find('summary').text), "template"]
                        param_list = []
    except IOError as e:
        pass
    return interface_dict


def get_interface_format_text(interface, path="/usr/share/selinux/devel/policy.xml"):
    idict = get_interface_dict(path)
    interface_text = "%s(%s) %s" % (interface, ", ".join(idict[interface][0]), " ".join(idict[interface][1].split("\n")))

    return interface_text


def get_interface_compile_format_text(interfaces_dict, interface):
    from .templates import test_module
    param_tmp = []
    for i in interfaces_dict[interface][0]:
        param_tmp.append(test_module.dict_values[i])
        interface_text = "%s(%s)\n" % (interface, ", ".join(param_tmp))

    return interface_text


def generate_compile_te(interface, idict, name="compiletest"):
    from .templates import test_module
    te = ""
    te += re.sub("TEMPLATETYPE", name, test_module.te_test_module)
    te += get_interface_compile_format_text(idict, interface)

    return te


def get_xml_file(if_file):
    """ Returns xml format of interfaces for given .if policy file"""
    import os
    import subprocess
    basedir = os.path.dirname(if_file) + "/"
    filename = os.path.basename(if_file).split(".")[0]
    try:
        output = subprocess.check_output("python /usr/share/selinux/devel/include/support/segenxml.py -w -m %s" % basedir + filename,
                                         stderr=subprocess.STDOUT,
                                         shell=True)
        return output
    except subprocess.CalledProcessError as e:
        sys.stderr.write("\n Could not proceed selected interface file.\n")
        sys.stderr.write(e.output)
        sys.exit(1)


def interface_compile_test(interface, path="/usr/share/selinux/devel/policy.xml"):
    exclude_interfaces = ["userdom", "kernel", "corenet", "files", "dev"]
    exclude_interface_name = ["selinux_genbool"]
    exclude_interface_type = ["template"]

    import subprocess
    import os
    policy_files = {'pp': "compiletest.pp", 'te': "compiletest.te", 'fc': "compiletest.fc", 'if': "compiletest.if"}
    idict = get_interface_dict(path)

    if not (interface in exclude_interface_name or interface.split("_")[0] in exclude_interfaces or idict[interface][2] in exclude_interface_type):
        print((_("Compiling %s interface" % interface)))
        try:
            fd = open(policy_files['te'], "w")
            fd.write(generate_compile_te(interface, idict))
            fd.close()
            try:
                subprocess.check_output("make -f /usr/share/selinux/devel/Makefile %s" % policy_files['pp'],
                                        stderr=subprocess.STDOUT,
                                        shell=True)
            except subprocess.CalledProcessError as e:
                sys.stderr.write(_("\nCompile test for %s failed.\n") % interface)
                sys.stderr.write(e.output)

        except EnvironmentError as e:
            sys.stderr.write(_("\nCompile test for %s has not run. %s\n") % (interface, e))
        for v in list(policy_files.values()):
            if os.path.exists(v):
                os.remove(v)

    else:
        sys.stderr.write(_("\nCompiling of %s interface is not supported." % interface))

Filemanager

Name Type Size Permission Actions
templates Folder 0755
.__init__.pyo.40009 File 33.24 KB 0644
.booleans.pyo.40009 File 1.1 KB 0644
.communicate.pyo.40009 File 1.41 KB 0644
.interface.pyo.40009 File 7.66 KB 0644
.manpage.pyo.40009 File 39.15 KB 0644
.network.pyo.40009 File 1.91 KB 0644
.sedbus.pyo.40009 File 2.87 KB 0644
.transition.pyo.40009 File 3.58 KB 0644
__init__.py File 31.65 KB 0644
__init__.pyc File 33.24 KB 0644
__init__.pyo File 33.24 KB 0644
booleans.py File 1.59 KB 0644
booleans.pyc File 1.1 KB 0644
booleans.pyo File 1.1 KB 0644
communicate.py File 1.72 KB 0644
communicate.pyc File 1.41 KB 0644
communicate.pyo File 1.41 KB 0644
interface.py File 8.61 KB 0644
interface.pyc File 7.66 KB 0644
interface.pyo File 7.66 KB 0644
manpage.py File 39.37 KB 0644
manpage.pyc File 39.15 KB 0644
manpage.pyo File 39.15 KB 0644
network.py File 2.83 KB 0644
network.pyc File 1.91 KB 0644
network.pyo File 1.91 KB 0644
policy.so File 47.11 KB 0755
sedbus.py File 1.71 KB 0644
sedbus.pyc File 2.87 KB 0644
sedbus.pyo File 2.87 KB 0644
transition.py File 3.03 KB 0644
transition.pyc File 3.58 KB 0644
transition.pyo File 3.58 KB 0644