WIP SELinux

This commit is contained in:
Leon Grünewald
2021-02-10 01:21:16 +01:00
parent dfe918358e
commit 3deedba040
6 changed files with 31 additions and 163 deletions

View File

@@ -1,3 +1,8 @@
%define relabel_files() \
restorecon -R /usr/bin/ly; \
%define selinux_policyver 3.14.6-34
Name: {{{ git_dir_name }}}
Version: {{{ git_dir_version }}}
Release: 1%{?dist}
@@ -37,6 +42,26 @@ DESTDIR="%{buildroot}" make install
chmod -x %{buildroot}/etc/ly/config.ini
chmod -x %{buildroot}/etc/ly/lang/*
%post
semodule -n -i %{_datadir}/selinux/packages/ly.pp
if /usr/sbin/selinuxenabled ; then
/usr/sbin/load_policy
%relabel_files
fi;
exit 0
%postun
if [ $1 -eq 0 ]; then
semodule -n -r ly
if /usr/sbin/selinuxenabled ; then
/usr/sbin/load_policy
%relabel_files
fi;
fi;
exit 0
%files
/usr/bin/ly
/usr/lib/systemd/system/ly.service
@@ -50,6 +75,7 @@ chmod -x %{buildroot}/etc/ly/lang/*
/etc/ly/wsetup.sh
/etc/ly/config.ini
/etc/pam.d/ly
/etc/selinux/packages/ly.pp
%changelog
{{{ git_dir_changelog }}}

View File

@@ -92,6 +92,11 @@ installnoconf: $(BIND)/$(NAME)
@install -DZ $(RESD)/ly.service -m 644 -t ${DESTDIR}/usr/lib/systemd/system
@install -DZ $(RESD)/pam.d/ly -m 644 -t ${DESTDIR}/etc/pam.d
makeselinux:
@echo "installing selinux modules"
@checkmodule -M -m -o ly.mod selinux/ly.te
@semodule_package -o ly.pp -m ly.mod
uninstall:
@echo "uninstalling"
@rm -rf ${DESTDIR}/etc/ly

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@@ -1 +0,0 @@
/usr/bin/ly -- gen_context(system_u:object_r:ly_exec_t,s0)

View File

@@ -1,40 +0,0 @@
## <summary>policy for ly</summary>
########################################
## <summary>
## Execute ly_exec_t in the ly domain.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed to transition.
## </summary>
## </param>
#
interface(`ly_domtrans',`
gen_require(`
type ly_t, ly_exec_t;
')
corecmd_search_bin($1)
domtrans_pattern($1, ly_exec_t, ly_t)
')
######################################
## <summary>
## Execute ly in the caller domain.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`ly_exec',`
gen_require(`
type ly_exec_t;
')
corecmd_search_bin($1)
can_exec($1, ly_exec_t)
')

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@@ -1,52 +0,0 @@
#!/bin/sh -e
DIRNAME=`dirname $0`
cd $DIRNAME
USAGE="$0 [ --update ]"
if [ `id -u` != 0 ]; then
echo 'You must be root to run this script'
exit 1
fi
if [ $# -eq 1 ]; then
if [ "$1" = "--update" ] ; then
time=`ls -l --time-style="+%x %X" ly.te | awk '{ printf "%s %s", $6, $7 }'`
rules=`ausearch --start $time -m avc --raw -se ly`
if [ x"$rules" != "x" ] ; then
echo "Found avc's to update policy with"
echo -e "$rules" | audit2allow -R
echo "Do you want these changes added to policy [y/n]?"
read ANS
if [ "$ANS" = "y" -o "$ANS" = "Y" ] ; then
echo "Updating policy"
echo -e "$rules" | audit2allow -R >> ly.te
# Fall though and rebuild policy
else
exit 0
fi
else
echo "No new avcs found"
exit 0
fi
else
echo -e $USAGE
exit 1
fi
elif [ $# -ge 2 ] ; then
echo -e $USAGE
exit 1
fi
echo "Building and Loading Policy"
set -x
make -f /usr/share/selinux/devel/Makefile ly.pp || exit
/usr/sbin/semodule -i ly.pp
# Generate a man page off the installed module
sepolicy manpage -p . -d ly_t
# Fixing the file context on /usr/bin/ly
/sbin/restorecon -F -R -v /usr/bin/ly
# Generate a rpm package for the newly generated policy
pwd=$(pwd)
rpmbuild --define "_sourcedir ${pwd}" --define "_specdir ${pwd}" --define "_builddir ${pwd}" --define "_srcrpmdir ${pwd}" --define "_rpmdir ${pwd}" --define "_buildrootdir ${pwd}/.build" -ba ly_selinux.spec

View File

@@ -1,70 +0,0 @@
# vim: sw=4:ts=4:et
%define relabel_files() \
restorecon -R /usr/bin/ly; \
%define selinux_policyver 3.14.6-34
Name: ly_selinux
Version: 1.0
Release: 1%{?dist}
Summary: SELinux policy module for ly
Group: System Environment/Base
License: WTFPL
# This is an example. You will need to change it.
URL: https://github.com/nullgemm/ly
Source0: ly.pp
Source1: ly.if
Source2: ly_selinux.8
Requires: policycoreutils, libselinux-utils
Requires(post): selinux-policy-base >= %{selinux_policyver}, policycoreutils
Requires(postun): policycoreutils
BuildArch: noarch
%description
This package installs and sets up the SELinux policy security module for ly.
%install
install -d %{buildroot}%{_datadir}/selinux/packages
install -m 644 %{SOURCE0} %{buildroot}%{_datadir}/selinux/packages
install -d %{buildroot}%{_datadir}/selinux/devel/include/contrib
install -m 644 %{SOURCE1} %{buildroot}%{_datadir}/selinux/devel/include/contrib/
install -d %{buildroot}%{_mandir}/man8/
install -m 644 %{SOURCE2} %{buildroot}%{_mandir}/man8/ly_selinux.8
install -d %{buildroot}/etc/selinux/targeted/contexts/users/
%post
semodule -n -i %{_datadir}/selinux/packages/ly.pp
if /usr/sbin/selinuxenabled ; then
/usr/sbin/load_policy
%relabel_files
fi;
exit 0
%postun
if [ $1 -eq 0 ]; then
semodule -n -r ly
if /usr/sbin/selinuxenabled ; then
/usr/sbin/load_policy
%relabel_files
fi;
fi;
exit 0
%files
%attr(0600,root,root) %{_datadir}/selinux/packages/ly.pp
%{_datadir}/selinux/devel/include/contrib/ly.if
%{_mandir}/man8/ly_selinux.8.*
%changelog
* Wed Feb 3 2021 YOUR NAME <YOUR@EMAILADDRESS> 1.0-1
- Initial version