> -----Original Message----- > From: James Carter [mailto:jwcart2@xxxxxxxxxxxxx] > Sent: Thursday, January 28, 2010 4:03 PM > To: Caleb Case > Cc: selinux@xxxxxxxxxxxxx; Chad Sellers; Karl MacMillan; Joshua Brindle; > sds@xxxxxxxxxxxxx > Subject: Re: [PATCH 04/15] [src-policy] refpol intermediate language > compiler (refpol_ilc) > > On Tue, 2010-01-26 at 17:08 -0500, Caleb Case wrote: > > In the interim, before the completion of the proposed CIL[1], the > > intermediate language will be a specialized version of refpol and the > > Reference Policy build environment. > > > > [refpol_ilc CIL Compiler] > > > > The repfol intermediate language compiler (refpol_ilc) builds a binary > > base module from refpol module. Producing a binary base module allows > > the existing libsemanage framework to continue to operate essentially as > > it does today (load base module, apply database changes, create loadable > > policy). > > > > Usage: refpol_ilc [OPTIONS] MODULE MODULE ... > > > > Options: > > --version show program's version number and exit > > -h, --help show this help message and exit > > -d FILE, --disabled=FILE > > indicates module is disabled > > -f, --force force overwriting existing files > > -t DIR, --tmp=DIR temporary build directory > > -b DIR, --build-template=DIR > > build template directory (Default: > > /usr/share/selinux/refpol_ilc/build) > > -o FILE, --output=FILE > > output file > > -c BOOL, --cleanup=BOOL > > cleanup (remove) temporary directory > (Default: True) > > > > Note: The paths passed to the refpol_ilc need to be in the format of the > > semanage store in /var/lib/selinux. The refpol_ilc extracts the > > module name from the path. Future CIL will also likely extract the > > priority of the module from the path. > > > > Example: > > > > The compiles the moduless installed in the 'test' store into a base.pp: > > > > # refpol_ilc `find /var/lib/selinux/test/active/modules/400/ -iname cil` > > base.pp > > > > [Compilation] > > > > Compilation proceeds as follows: > > > > 1. Copy build environment to temporary location. > > > > Note: refpol_ilc anticipates the build environment being installed > > to /usr/share/selinux/refpol_ilc/build by default. > > > > 2. Install modules (see Special Modules and Normal Modules below). > > > > 3. Create conf files. > > > > 4. Set all modules to base or off as appropriate in modules.conf. > > > > 5. Create base module (base.pp). > > > > [Special Modules] > > > > A number of modules are considered to be special and are installed into > > special locations in the build environment: > > > > [Module Name] [Reference Policy File] > > > > _constraints policy/constraints > > _global_booleans policy/global_booleans > > _global_tunables policy/global_tunables > > _mcs policy/mcs > > _mls policy/mls > > _policy_capabilities policy/policy_capabilities > > _rolemap policy/rolemap > > _users policy/users > > _access_vectors policy/flask/access_vectors > > _initial_sids policy/flask/initial_sids > > _security_classes policy/flask/security_classes > > _file_patterns policy/support/file_patterns.spt > > _ipc_patterns policy/support/ipc_patterns.spt > > _loadable_module policy/support/loadable_module.spt > > _misc_macros policy/support/misc_macros.spt > > _misc_patterns policy/support/misc_patterns.spt > > _mls_mcs_macros policy/support/mls_mcs_macros.spt > > _obj_perm_sets policy/support/obj_perm_sets.spt > > > > In the policy store, mcs and mls modules exist along with _mcs and _mls > modules. But _mcs calls itself "mcs" in the policy_module statement and > _mls calls itself "mls" in the policy_module statement. > > mcs: > policy_module(mcs, 1.2.0) > > _mcs: > policy_module(mcs, 2.20091117) > > mls: > policy_module(mls, 1.8.0) > > _mls: > policy_module(mls, 2.20091117) > > Is there a reason for this? Oops, it's a bug in the refpolicy2refpol script. The names should match. > > > The build.conf file is handled with another special module _defines. > > This module provides some of the variables for the traditional > > build.conf with the remaining variables determined by the build > > environment as follows: > > > > OUTPUT_POLICY => Copied from _defines. > > TYPE => Detect from the presence of the mls/mcs modules. > > mls > mcs > none: meaning that if there is an > > _mls module, then TYPE = mls, even if there is > an > > mcs module present. > > NAME => Copied from _defines. > > DISTRO => Copied from _defines. > > UNK_PERMS => Copied from _defines. > > DIRECT_INITRC => Copied from _defines. > > MONOLITHIC => Fixed to 'n'. > > UBAC => Copied from _defines. > > MLS_SENS => Copied from _defines. > > MLS_CATS => Copied from _defines. > > MCS_CATS => Copied from _defines. > > QUIET => Copied from _defines. > > > > No other special modules are permitted. All special modules are > > prepended with '_' to distinguish them from normal modules. > > > > Note: The MLS/MCS/Standard setting of the policy is derived from the > > presense of the _mls or _mcs modules. It is no longer necessary to > > specify the policy type explicitly via the TYPE statement. This > > also allows policy type to be switched simply by enabling/disabled > > the _mls/_mcs modules. > > > > [Normal Modules] > > > > All normal (non-special) modules are copied to policy/modules/kernel/ > > and unpacked into the Reference Policy module 3 file format. > > > > [1] CIL RFC: http://marc.info/?l=selinux&m=124759244409438&w=2 > > --- > > Makefile | 2 +- > > refpol_ilc/COPYING | 504 > +++++++++++++++++++++++++++++++++++ > > refpol_ilc/Makefile | 24 ++ > > refpol_ilc/refpol_ilc.py | 17 ++ > > refpol_ilc/refpol_ilc/refpol_ilc.py | 193 +++++++++++++ > > refpol_ilc/setup.py | 13 + > > 6 files changed, 752 insertions(+), 1 deletions(-) > > create mode 100644 refpol_ilc/COPYING > > create mode 100644 refpol_ilc/Makefile > > create mode 100755 refpol_ilc/refpol_ilc.py > > create mode 100644 refpol_ilc/refpol_ilc/__init__.py > > create mode 100644 refpol_ilc/refpol_ilc/refpol_ilc.py > > create mode 100755 refpol_ilc/setup.py > > > > diff --git a/Makefile b/Makefile > > index be2a4ec..afb4843 100644 > > --- a/Makefile > > +++ b/Makefile > > @@ -1,4 +1,4 @@ > > -SUBDIRS=libsepol libselinux libsemanage sepolgen checkpolicy > policycoreutils refpol corenet # policy > > +SUBDIRS=libsepol libselinux libsemanage sepolgen checkpolicy > policycoreutils refpol corenet refpol_ilc # policy > > PYSUBDIRS=libselinux libsemanage > > > > ifeq ($(DEBUG),1) > > diff --git a/refpol_ilc/COPYING b/refpol_ilc/COPYING > > new file mode 100644 > > index 0000000..8add30a > > --- /dev/null > > +++ b/refpol_ilc/COPYING > > @@ -0,0 +1,504 @@ > > + GNU LESSER GENERAL PUBLIC LICENSE > > + Version 2.1, February 1999 > > + > > + Copyright (C) 1991, 1999 Free Software Foundation, Inc. > > + 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA > > + Everyone is permitted to copy and distribute verbatim copies > > + of this license document, but changing it is not allowed. > > + > > +[This is the first released version of the Lesser GPL. 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You can do so by permitting > > +redistribution under these terms (or, alternatively, under the terms of > the > > +ordinary General Public License). > > + > > + To apply these terms, attach the following notices to the library. > It is > > +safest to attach them to the start of each source file to most > effectively > > +convey the exclusion of warranty; and each file should have at least > the > > +"copyright" line and a pointer to where the full notice is found. > > + > > + <one line to give the library's name and a brief idea of what it > does.> > > + Copyright (C) <year> <name of author> > > + > > + This library is free software; you can redistribute it and/or > > + modify it under the terms of the GNU Lesser General Public > > + License as published by the Free Software Foundation; either > > + version 2.1 of the License, or (at your option) any later version. > > + > > + This library 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 > > + Lesser General Public License for more details. > > + > > + You should have received a copy of the GNU Lesser General Public > > + License along with this library; if not, write to the Free Software > > + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110- > 1301 USA > > + > > +Also add information on how to contact you by electronic and paper > mail. > > + > > +You should also get your employer (if you work as a programmer) or your > > +school, if any, to sign a "copyright disclaimer" for the library, if > > +necessary. Here is a sample; alter the names: > > + > > + Yoyodyne, Inc., hereby disclaims all copyright interest in the > > + library `Frob' (a library for tweaking knobs) written by James Random > Hacker. > > + > > + <signature of Ty Coon>, 1 April 1990 > > + Ty Coon, President of Vice > > + > > +That's all there is to it! > > + > > + > > diff --git a/refpol_ilc/Makefile b/refpol_ilc/Makefile > > new file mode 100644 > > index 0000000..f6cdb14 > > --- /dev/null > > +++ b/refpol_ilc/Makefile > > @@ -0,0 +1,24 @@ > > +PREFIX ?= $(DESTDIR)/usr > > +BINDIR ?= $(PREFIX)/bin > > + > > +PYTHON ?= python > > + > > +ifneq ($(origin DESTDIR), undefined) > > + PYDESTDIR ?= --root=$(DESTDIR) > > +endif > > + > > +TARGET = refpol_ilc.py > > + > > +all: > > + $(PYTHON) setup.py build > > + > > +install: > > + $(PYTHON) setup.py install $(PYDESTDIR) > > + -mkdir -p $(BINDIR) > > + install -m 755 $(TARGET) $(BINDIR)/$(TARGET:.py=) > > + > > +clean distclean: > > + $(PYTHON) setup.py clean > > + rm -fr build > > + rm -f refpol_ilc/*.pyc > > + > > diff --git a/refpol_ilc/refpol_ilc.py b/refpol_ilc/refpol_ilc.py > > new file mode 100755 > > index 0000000..31021b4 > > --- /dev/null > > +++ b/refpol_ilc/refpol_ilc.py > > @@ -0,0 +1,17 @@ > > +#!/usr/bin/python > > + > > +# Authors: Caleb Case <ccase@xxxxxxxxxx> > > +# > > +# Copyright (C) 2009-2010 Tresys Technology, LLC > > +# This program is free software; you can redistribute it and/or > modify > > +# it under the terms of the Lesser GNU General Public License as > > +# published by the Free Software Foundation, version 2. > > + > > +import refpol_ilc.refpol_ilc > > +import sys > > + > > +try: > > + refpol_ilc.refpol_ilc.main() > > +except Exception as e: > > + sys.stderr.write(sys.argv[0] + ": Error: " + str(e) + "\n") > > + sys.exit(1) > > diff --git a/refpol_ilc/refpol_ilc/__init__.py > b/refpol_ilc/refpol_ilc/__init__.py > > new file mode 100644 > > index 0000000..e69de29 > > diff --git a/refpol_ilc/refpol_ilc/refpol_ilc.py > b/refpol_ilc/refpol_ilc/refpol_ilc.py > > new file mode 100644 > > index 0000000..7e5430e > > --- /dev/null > > +++ b/refpol_ilc/refpol_ilc/refpol_ilc.py > > @@ -0,0 +1,193 @@ > > +#!/usr/bin/python > > + > > +# Authors: Caleb Case <ccase@xxxxxxxxxx> > > +# > > +# Copyright (C) 2009-2010 Tresys Technology, LLC > > +# This program is free software; you can redistribute it and/or > modify > > +# it under the terms of the Lesser GNU General Public License as > > +# published by the Free Software Foundation, version 2. > > + > > +from optparse import OptionParser, OptionGroup > > +import os > > +import os.path > > +import tempfile > > +from refpol import refpol > > +from refpol import refpolicy2refpol > > +import shutil > > +import subprocess > > +import sys > > + > > +build_directory = "/usr/share/selinux/refpol_ilc/build" > > + > > +# setup PATH (for gcc) if missing > > +if not "PATH" in os.environ: > > + os.environ["PATH"] = "/bin:/usr/bin" > > + > > +def to_bool(str): > > + return { > > + "true" : True, > > + "t" : True, > > + "1" : True, > > + "false" : False, > > + "f" : False, > > + "0" : False, > > + }[str.lower()] > > + > > +usage = "%prog [OPTIONS] MODULE MODULE ..." > > +version = "%prog 1.0" > > + > > +def main(): > > + def disabled(option, opt_str, value, parser, *args, **kwargs): > > + parser.values.disabled.append(value) > > + > > + # create cmdline parser > > + parser = OptionParser(usage = usage, version = version) > > + parser.add_option("-d", "--disabled", action = "callback", callback > = disabled, type = "string", default = [], dest = "disabled", help = > "indicates module is disabled", metavar = "FILE") > > + parser.add_option("-f", "--force", action = "store_true", default = > False, dest = "force", help = "force overwriting existing files") > > + parser.add_option("-t", "--tmp", action = "store", default = None, > dest = "tmp", help = "temporary build directory", metavar = "DIR") > > + parser.add_option("-b", "--build-template", action = "store", > default = build_directory, dest = "build_template", help = "build template > directory (Default: %s)" % build_directory, metavar = "DIR") > > + parser.add_option("-o", "--output", action = "store", default = > None, dest = "output", help = "output file", metavar = "FILE") > > + parser.add_option("-c", "--cleanup", action = "store", default = > "True", dest = "cleanup", help = "cleanup (remove) temporary directory > (Default: True)", metavar = "BOOL") > > + > > + # parse cmdline > > + (options, args) = parser.parse_args() > > + if len(args) <= 0: > > + parser.error("Invalid number of arguments %d." % len(args)) > > + > > + # save the working directory > > + saved_cwd = os.getcwd() > > + > > + force = options.force > > + refpol.force = options.force > > + refpolicy2refpol.force = options.force > > + > > + if options.output is None: > > + options.output = sys.stdout > > + else: > > + refpol.file_exists(options.output) > > + options.output = open(options.output, "w") > > + > > + try: > > + if not options.tmp: > > + # create tmp build dir if one isn't provided > > + options.tmp = tempfile.mkdtemp("-refpol_ilc") > > + else: > > + shutil.rmtree(options.tmp, ignore_errors = True) > > + os.mkdir(options.tmp) > > + > > + # copy build dir template > > + build_root = options.tmp + "/build" > > + shutil.copytree(options.build_template, build_root) > > + > > + # set default policy TYPE > > + type = "standard" > > + > > + # copy modules into build dir > > + special_names = dict(zip(["_" + > os.path.basename(i).rsplit('.', 1)[0] for i in > refpolicy2refpol.specials("")], refpolicy2refpol.specials(build_root))) > > + disabled_names = [os.path.basename(os.path.dirname(i)) for i > in options.disabled] > > + > > + all_modules = [] > > + all_modules.extend(args) > > + all_modules.extend(options.disabled) > > + for path in all_modules: > > + module_name = os.path.basename(os.path.dirname(path)) > > + > > + if module_name in special_names and not module_name in > disabled_names: > > + if module_name == "_mls": > > + type = "mls" > > + elif module_name == "_mcs" and type != "mls": > > + type = "mcs" > > + > > + # copy to special location > > + with open(path, "r") as input: > > + with open(special_names[module_name], "w") > as output: > > + for line in input: > > + # remove policy_module statement > > + if not > line.strip().startswith("policy_module"): > > + output.write(line) > > + elif module_name == "_defines": > > + shutil.copy(path, build_root + "/_defines.ref") > > + else: > > + # copy module to policy/kernel/ > > + dest_ref = build_root + "/policy/modules/kernel/" > + module_name + ".ref" > > + dest_name = build_root + "/policy/modules/kernel/" > + module_name > > + shutil.copy(path, dest_ref) > > + > > + refpol.ref_to_itf(dest_ref, dest_name + ".if", > dest_name + ".te", dest_name + ".fc") > > + > > + os.chdir(build_root) > > + > > + # compose build.conf (build.conf.in from _defines.ref) > > + with open("_defines.ref", "r") as input: > > + with open("build.conf", "w") as output: > > + # write out the type > > + output.write("TYPE = %s\n\n" % type) > > + > > + # write out monolithic > > + output.write("MONOLITHIC = n\n\n") > > + > > + for line in input: > > + # remove policy_module statement > > + if not > line.strip().startswith("policy_module"): > > + output.write(line) > > + > > + # make conf > > + p = subprocess.Popen("make conf", shell = True, stdout = > subprocess.PIPE, stderr = subprocess.PIPE, close_fds = True) > > + > > + (stdout, stderr) = p.communicate() > > + sys.stderr.write(stdout) > > + sys.stderr.write(stderr) > > + > > + if p.returncode != 0: > > + raise Exception("Failed to run make conf (%d)." % > p.returncode) > > + > > + # sed modules.conf to base module if enabled > > + sed_cmd = "sed -i '1,/^END/{ s/= module/= base/; " > > + disabled_len = len(options.disabled) > > + if disabled_len > 0: > > + sed_cmd = sed_cmd + "s/\\(" > > + i = 0 > > + for d in options.disabled: > > + i = i + 1 > > + sed_cmd = sed_cmd + > os.path.basename(os.path.dirname(d)) > > + if i != disabled_len: > > + sed_cmd = sed_cmd + "\\|" > > + sed_cmd = sed_cmd + "\\) = base/\\1 = off/ " > > + sed_cmd = sed_cmd + "}' policy/modules.conf" > > + > > + p = subprocess.Popen(sed_cmd, shell = True, stdout = > subprocess.PIPE, stderr = subprocess.PIPE, close_fds = True) > > + > > + (stdout, stderr) = p.communicate() > > + sys.stderr.write(stdout) > > + sys.stderr.write(stderr) > > + > > + if p.returncode != 0: > > + raise Exception("Failed to modify modules.conf (%d)." % > p.returncode) > > + > > + # make base module > > + p = subprocess.Popen("make base.pp", shell = True, stdout = > subprocess.PIPE, stderr = subprocess.PIPE, close_fds = True) > > + > > + (stdout, stderr) = p.communicate() > > + sys.stderr.write(stdout) > > + sys.stderr.write(stderr) > > + > > + if p.returncode != 0: > > + raise Exception("Failed to run make base.pp (%d)." % > p.returncode) > > + > > + # output base module > > + options.output.write(open("base.pp", "r").read()) > > + finally: > > + if to_bool(options.cleanup): > > + shutil.rmtree(options.tmp) > > + > > + options.output.close() > > + > > + # return the saved directory > > + os.chdir(saved_cwd) > > + > > +if __name__ == '__main__': > > + try: > > + main() > > + except Exception as e: > > + sys.stderr.write(sys.argv[0] + ": Error: " + str(e) + "\n") > > + sys.exit(1) > > diff --git a/refpol_ilc/setup.py b/refpol_ilc/setup.py > > new file mode 100755 > > index 0000000..31c3a14 > > --- /dev/null > > +++ b/refpol_ilc/setup.py > > @@ -0,0 +1,13 @@ > > +#!/usr/bin/python > > + > > +from distutils.core import setup > > + > > +setup( name = "refpol_ilc", > > + version = "0.1", > > + description = "Refpol Intermediate Language Compiler", > > +# url = "", > > + author = "Caleb Case", > > + author_email = "ccase@xxxxxxxxxx", > > + license = "LGPL v2.1", > > + packages = ['refpol_ilc'], > > + ) > > -- > James Carter <jwcart2@xxxxxxxxxxxxx> > National Security Agency -- This message was distributed to subscribers of the selinux mailing list. 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