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? > 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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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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